/* roulang page: index */
/* ============================================================
   华体登录 · 全站视觉系统
   ============================================================ */
:root {
  --primary: #0FA678;
  --primary-dark: #0B8A65;
  --primary-light: rgba(15, 166, 120, 0.12);
  --accent: #FF6A00;
  --accent-hover: #FF7D1A;
  --accent-shadow: rgba(255, 106, 0, 0.3);
  --dark: #111827;
  --dark-soft: #1F2937;
  --light: #F6F8F9;
  --white: #FFFFFF;
  --text: #1F2937;
  --text-secondary: #64748B;
  --text-muted: #9CA3AF;
  --border: #E6EAF0;
  --radius: 16px;
  --radius-sm: 8px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 12px rgba(17, 24, 39, 0.05);
  --shadow-md: 0 4px 16px rgba(17, 24, 39, 0.06);
  --shadow-lg: 0 8px 24px rgba(17, 24, 39, 0.08);
  --font-primary: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  --transition: all 0.25s ease;
  --container-max: 1200px;
  --header-height: 68px;
}

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

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

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

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

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

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

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  border: none;
  outline: none;
  background: none;
}

a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 3px solid rgba(15, 166, 120, 0.35);
  outline-offset: 2px;
  border-radius: 4px;
}

/* Container */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
  width: 100%;
}

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

@media (max-width: 768px) {
  .section-padding {
    padding: 56px 0;
  }
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.3;
  color: var(--text);
  margin-bottom: 0.5em;
}

h1 {
  font-size: 46px;
  letter-spacing: -0.5px;
}

h2 {
  font-size: 32px;
  letter-spacing: -0.3px;
}

h3 {
  font-size: 20px;
  font-weight: 600;
}

.section-title-wrap {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 40px;
  gap: 20px;
  flex-wrap: wrap;
}

.section-title-wrap .section-lead {
  color: var(--text-secondary);
  font-size: 15px;
  max-width: 420px;
}

.section-title {
  position: relative;
  padding-left: 18px;
}

.section-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 26px;
  border-radius: 4px;
  background: linear-gradient(180deg, var(--primary), var(--accent));
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid transparent;
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: var(--white);
  box-shadow: 0 2px 8px rgba(255, 106, 0, 0.25);
}

.btn-primary:hover {
  background: var(--accent-hover);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 4px 14px var(--accent-shadow);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.65);
}

.btn-outline:hover {
  border-color: var(--white);
  color: var(--white);
  background: rgba(255, 255, 255, 0.1);
}

.btn-light {
  background: var(--white);
  color: var(--dark);
  border-color: #D1D5DB;
}

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

.btn-accent-text {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--primary);
  font-weight: 600;
  font-size: 14px;
  text-decoration: none;
}

.btn-accent-text i {
  transition: transform 0.2s ease;
}

.btn-accent-text:hover i {
  transform: translateX(3px);
}

.btn-sm {
  padding: 8px 20px;
  font-size: 14px;
}

.btn-lg {
  padding: 16px 36px;
  font-size: 16px;
}

/* Tags & Badges */
.tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--primary-light);
  color: var(--primary-dark);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.3px;
}

.tag-orange {
  background: rgba(255, 106, 0, 0.1);
  color: var(--accent);
}

.tag-muted {
  background: #F1F5F9;
  color: var(--text-secondary);
}

/* ============================================================
   导航
   ============================================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}

.brand-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--accent);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  box-shadow: 0 2px 8px rgba(255, 106, 0, 0.3);
}

.brand-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.5px;
}

.brand-text::after {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
  margin-left: 4px;
  vertical-align: middle;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-link {
  position: relative;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  padding: 6px 2px;
  transition: color 0.25s ease;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--primary);
  transition: width 0.25s ease;
}

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

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

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

.nav-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.search-box {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #F3F4F6;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 8px 16px;
  cursor: pointer;
  min-width: 200px;
  transition: all 0.25s ease;
}

.search-box:hover {
  border-color: var(--primary);
  background: var(--white);
  box-shadow: var(--shadow-sm);
}

.search-box i {
  color: var(--text-muted);
  font-size: 14px;
}

.search-box .search-placeholder {
  color: var(--text-muted);
  font-size: 13px;
  flex: 1;
  white-space: nowrap;
}

.search-box kbd {
  font-family: var(--font-primary);
  font-size: 11px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2px 6px;
  color: var(--text-muted);
}

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1px solid var(--border);
  cursor: pointer;
  background: var(--white);
  gap: 4px;
  transition: var(--transition);
}

.hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  border-radius: 2px;
  background: var(--text);
  transition: all 0.3s ease;
}

.hamburger.open span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.hamburger.open span:nth-child(2) {
  opacity: 0;
}

.hamburger.open span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* ============================================================
   搜索命令面板
   ============================================================ */
.search-panel {
  position: fixed;
  top: calc(var(--header-height) + 12px);
  left: 50%;
  transform: translateX(-50%) translateY(-10px);
  width: 560px;
  max-width: calc(100vw - 32px);
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.14);
  border: 1px solid var(--border);
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.28s ease;
  z-index: 1001;
}

.search-panel.open {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.search-panel-header {
  display: flex;
  align-items: center;
  gap: 10px;
  background: #F3F4F6;
  border-radius: 12px;
  padding: 12px 16px;
  margin-bottom: 16px;
}

.search-panel-header i {
  color: var(--text-muted);
}

.search-panel-header input {
  flex: 1;
  font-size: 15px;
  color: var(--text);
  background: transparent;
}

.search-panel-labels {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.search-panel-labels .tag {
  cursor: pointer;
  transition: var(--transition);
}

.search-panel-labels .tag:hover {
  background: var(--primary);
  color: var(--white);
}

.search-panel-list .search-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 10px;
  cursor: pointer;
  transition: var(--transition);
}

.search-panel-list .search-item:hover {
  background: #F9FAFB;
}

.search-item .search-item-icon {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
}

.search-item .search-item-name {
  font-size: 14px;
  color: var(--text);
  flex: 1;
}

.search-item .search-item-arrow {
  font-size: 12px;
  color: var(--text-muted);
}

.panel-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(17, 24, 39, 0.35);
  opacity: 0;
  visibility: hidden;
  transition: all 0.25s ease;
  z-index: 1000;
}

.panel-overlay.open {
  opacity: 1;
  visibility: visible;
}

/* ============================================================
   Hero 首屏
   ============================================================ */
.hero {
  position: relative;
  min-height: 640px;
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
  background: linear-gradient(90deg, rgba(17, 24, 39, 0.88) 0%, rgba(17, 24, 39, 0.58) 50%, rgba(17, 24, 39, 0.35) 100%),
              url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  overflow: hidden;
}

.hero-content {
  position: relative;
  z-index: 2;
  padding: 80px 24px;
  max-width: 640px;
  margin: 0;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: var(--white);
  border-radius: 999px;
  padding: 6px 16px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.5px;
  margin-bottom: 28px;
}

.hero-tag .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 1.8s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.85); }
}

.hero h1 {
  color: var(--white);
  font-size: 48px;
  line-height: 1.25;
  margin-bottom: 18px;
}

.hero-sub {
  font-size: 18px;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 440px;
}

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

.hero-status-card {
  position: absolute;
  right: 40px;
  bottom: 48px;
  background: rgba(255, 255, 255, 0.95);
  border-radius: var(--radius);
  padding: 16px 20px;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 200px;
  z-index: 2;
}

.hero-status-card .status-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}

.hero-status-card .status-label {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 2px;
}

.hero-status-card .status-text {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}

/* ============================================================
   热门专题合集
   ============================================================ */
.topic-section {
  background: var(--white);
}

.topic-scroll {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 24px;
  overflow-x: auto;
  padding-bottom: 12px;
  scroll-snap-type: x mandatory;
}

.topic-scroll::-webkit-scrollbar {
  height: 4px;
}

.topic-scroll::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 4px;
}

.topic-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  scroll-snap-align: start;
  min-width: 200px;
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: var(--text);
}

.topic-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: transparent;
}

.topic-card:hover .topic-img::after {
  opacity: 1;
}

.topic-card::before {
  content: "";
  display: block;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0;
  transition: var(--transition);
}

.topic-card:hover::before {
  opacity: 1;
}

.topic-img {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--light);
}

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

.topic-card:hover .topic-img img {
  transform: scale(1.04);
}

.topic-img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(17, 24, 39, 0.35), transparent 40%);
  opacity: 0;
  transition: var(--transition);
}

.topic-body {
  padding: 16px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.topic-body h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text);
}

.topic-body p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 12px;
}

.topic-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-muted);
}

.topic-meta .count {
  background: var(--light);
  padding: 2px 10px;
  border-radius: 999px;
  font-weight: 600;
  color: var(--text-secondary);
}

/* ============================================================
   核心服务亮点
   ============================================================ */
.features-section {
  background: var(--light);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.feature-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0;
  transition: var(--transition);
}

.feature-card:hover::after {
  opacity: 1;
}

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

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 20px;
  background: var(--primary-light);
  color: var(--primary);
}

.feature-icon.orange {
  background: rgba(255, 106, 0, 0.1);
  color: var(--accent);
}

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

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

/* ============================================================
   精选内容（不对称栅格）
   ============================================================ */
.featured-section {
  background: var(--white);
}

.featured-grid {
  display: grid;
  grid-template-columns: 7fr 5fr;
  gap: 32px;
  align-items: start;
}

.featured-main {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  text-decoration: none;
  color: var(--text);
  display: block;
}

.featured-main:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.featured-main .featured-img {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  position: relative;
}

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

.featured-main:hover .featured-img img {
  transform: scale(1.03);
}

.featured-main .featured-img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(17, 24, 39, 0.45), transparent 50%);
}

.featured-main .featured-body {
  padding: 24px;
}

.featured-main .featured-body h3 {
  font-size: 22px;
  line-height: 1.4;
  margin-bottom: 10px;
}

.featured-main .featured-body p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

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

.featured-list-item {
  display: flex;
  gap: 16px;
  align-items: center;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  transition: var(--transition);
  text-decoration: none;
  color: var(--text);
}

.featured-list-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateX(4px);
  border-color: var(--primary);
}

.featured-list-item .thumb {
  width: 84px;
  height: 70px;
  border-radius: 10px;
  overflow: hidden;
  flex-shrink: 0;
  background: var(--light);
}

.featured-list-item .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.featured-list-item .info {
  flex: 1;
  min-width: 0;
}

.featured-list-item .info h4 {
  font-size: 14px;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.featured-list-item .info .meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  color: var(--text-muted);
}

/* ============================================================
   最新信息 CMS
   ============================================================ */
.cms-section {
  background: var(--light);
}

.cms-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.cms-card {
  display: flex;
  gap: 20px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  transition: var(--transition);
  text-decoration: none;
  color: var(--text);
  position: relative;
  overflow: hidden;
}

.cms-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(180deg, var(--primary), var(--accent));
  opacity: 0;
  transition: var(--transition);
}

.cms-card:hover::after {
  opacity: 1;
}

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

.cms-card .cms-thumb {
  width: 130px;
  height: 92px;
  border-radius: 10px;
  overflow: hidden;
  flex-shrink: 0;
  background: var(--light);
}

.cms-card .cms-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.cms-card:hover .cms-thumb img {
  transform: scale(1.05);
}

.cms-card .cms-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.cms-card .cms-body .tag {
  align-self: flex-start;
  margin-bottom: 8px;
}

.cms-card .cms-body h3 {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 8px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.cms-card .cms-body p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 10px;
  flex: 1;
}

.cms-card .cms-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-muted);
}

.cms-card .cms-foot .enter-link {
  color: var(--primary);
  font-weight: 600;
  font-size: 13px;
}

.empty-tip {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 24px;
  background: var(--white);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  color: var(--text-muted);
  font-size: 15px;
}

/* ============================================================
   登录流程
   ============================================================ */
.flow-section {
  background: var(--dark);
  position: relative;
  overflow: hidden;
}

.flow-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 80% 20%, rgba(15, 166, 120, 0.18) 0%, transparent 60%);
}

.flow-section .section-title,
.flow-section .section-title-wrap .section-lead {
  color: var(--white);
}

.flow-section .section-title::before {
  background: linear-gradient(180deg, var(--accent), var(--primary));
}

.flow-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}

.flow-step {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  transition: var(--transition);
  backdrop-filter: blur(4px);
}

.flow-step:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-4px);
}

.flow-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--white);
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 18px;
  box-shadow: 0 4px 12px rgba(255, 106, 0, 0.35);
}

.flow-step h3 {
  color: var(--white);
  font-size: 16px;
  margin-bottom: 10px;
}

.flow-step p {
  color: rgba(255, 255, 255, 0.65);
  font-size: 13px;
  line-height: 1.6;
}

/* ============================================================
   数据统计
   ============================================================ */
.stats-section {
  background: var(--white);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.stat-item {
  text-align: center;
  padding: 40px 20px;
  background: var(--light);
  border-radius: var(--radius);
  transition: var(--transition);
  border: 1px solid transparent;
}

.stat-item:hover {
  background: var(--white);
  border-color: var(--border);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.stat-num {
  font-size: 40px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
  margin-bottom: 8px;
}

.stat-num .plus {
  color: var(--accent);
}

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

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

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

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

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

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  transition: var(--transition);
  background: none;
  text-align: left;
  width: 100%;
}

.faq-question i {
  color: var(--primary);
  font-size: 14px;
  flex-shrink: 0;
  transition: transform 0.3s ease;
}

.faq-item.active .faq-question i {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.faq-answer-inner {
  padding: 0 24px 20px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

/* ============================================================
   CTA + 登录引导
   ============================================================ */
.cta-section {
  background: var(--dark);
  position: relative;
  overflow: hidden;
}

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

.cta-section::after {
  content: "";
  position: absolute;
  bottom: -40px;
  right: -40px;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(15, 166, 120, 0.15), transparent 70%);
}

.cta-grid {
  display: grid;
  grid-template-columns: 6fr 6fr;
  gap: 48px;
  align-items: center;
  position: relative;
  z-index: 2;
}

.cta-title {
  font-size: 30px;
  color: var(--white);
  margin-bottom: 14px;
}

.cta-desc {
  color: rgba(255, 255, 255, 0.7);
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 24px;
}

.login-panel {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius);
  padding: 32px;
  backdrop-filter: blur(6px);
}

.login-panel h3 {
  color: var(--white);
  font-size: 18px;
  margin-bottom: 20px;
}

.login-form .form-group {
  margin-bottom: 16px;
}

.login-form label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 8px;
}

.login-form input {
  width: 100%;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.92);
  font-size: 14px;
  color: var(--text);
  transition: var(--transition);
}

.login-form input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(15, 166, 120, 0.2);
}

.login-form .btn {
  width: 100%;
  margin-top: 8px;
}

.login-hint {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.5);
  text-align: center;
  margin-top: 14px;
}

/* ============================================================
   页脚
   ============================================================ */
.site-footer {
  background: var(--dark);
  color: rgba(255, 255, 255, 0.6);
}

.site-footer::before {
  content: "";
  display: block;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
}

.footer-main {
  display: grid;
  grid-template-columns: 7fr 3fr 3fr;
  gap: 48px;
  padding: 64px 0 48px;
}

.footer-brand .brand-text {
  color: var(--white);
}

.footer-brand p {
  font-size: 13px;
  line-height: 1.7;
  margin-top: 16px;
  max-width: 280px;
}

.footer-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 20px;
}

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

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

.footer-links a {
  color: rgba(255, 255, 255, 0.55);
  font-size: 14px;
  text-decoration: none;
  transition: var(--transition);
}

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

.footer-contact p {
  font-size: 13px;
  margin-bottom: 10px;
  color: rgba(255, 255, 255, 0.5);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
}

.footer-bottom .icp {
  color: rgba(255, 255, 255, 0.35);
}

/* ============================================================
   响应式断点
   ============================================================ */
@media (max-width: 1024px) {
  .topic-scroll {
    grid-template-columns: repeat(4, 1fr);
  }

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

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

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

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

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

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

@media (max-width: 768px) {
  .main-nav {
    position: fixed;
    top: var(--header-height);
    left: 16px;
    right: 16px;
    background: var(--white);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    flex-direction: column;
    align-items: stretch;
    padding: 16px;
    gap: 0;
    transform: translateY(-16px);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 999;
  }

  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-link {
    padding: 12px 16px;
    border-radius: 10px;
    font-size: 15px;
  }

  .nav-link:hover {
    background: var(--light);
  }

  .nav-link::after {
    display: none;
  }

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

  .hamburger {
    display: flex;
  }

  .search-box {
    display: none;
  }

  .hero {
    min-height: 560px;
  }

  .hero h1 {
    font-size: 34px;
  }

  .hero-sub {
    font-size: 16px;
  }

  .hero-status-card {
    position: relative;
    right: auto;
    bottom: auto;
    margin-top: 40px;
    max-width: 260px;
  }

  .cms-list {
    grid-template-columns: 1fr;
  }

  .footer-main {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 48px 0 32px;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 30px;
  }

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

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

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

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

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

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

  .section-title-wrap {
    flex-direction: column;
    align-items: flex-start;
  }

  .featured-list-item .thumb {
    width: 70px;
    height: 60px;
  }

  .cms-card {
    flex-direction: column;
  }

  .cms-card .cms-thumb {
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 7;
  }
}

/* roulang page: article */
:root {
  --primary: #0FA678;
  --primary-dark: #0B8A5F;
  --accent: #FF6A00;
  --accent-dark: #E55D00;
  --dark: #111827;
  --light: #F6F8F9;
  --text: #1F2937;
  --text-secondary: #64748B;
  --text-muted: #9CA3AF;
  --border: #E6EAF0;
  --radius: 16px;
  --radius-sm: 8px;
  --radius-pill: 999px;
  --shadow: 0 2px 12px rgba(17, 24, 39, 0.05);
  --shadow-hover: 0 8px 24px rgba(17, 24, 39, 0.08);
  --shadow-accent: 0 4px 14px rgba(255, 106, 0, 0.3);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: #FFFFFF;
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: var(--primary);
  text-decoration: none;
  transition: var(--transition);
}
a:hover {
  color: var(--primary-dark);
}
button, input {
  font-family: inherit;
  border: none;
  outline: none;
  background: none;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}
.grid-container {
  max-width: 1200px;
  padding-left: 24px;
  padding-right: 24px;
}
section {
  position: relative;
}

/* ========== 按钮 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-pill);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.2;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent);
  color: #FFFFFF;
  box-shadow: 0 2px 8px rgba(255, 106, 0, 0.25);
}
.btn-primary:hover {
  background: var(--accent-dark);
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: var(--shadow-accent);
}
.btn-outline {
  background: #FFFFFF;
  border: 1px solid #D1D5DB;
  color: var(--text);
}
.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}
.btn-sm {
  padding: 9px 20px;
  font-size: 14px;
}
.btn-lg {
  padding: 16px 40px;
  font-size: 16px;
}

/* ========== 标签 ========== */
.tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 600;
  background: rgba(15, 166, 120, 0.1);
  color: var(--primary);
  line-height: 1.5;
}

/* ========== 导航 ========== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  height: 68px;
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 32px;
  height: 68px;
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-icon {
  width: 30px;
  height: 30px;
  border-radius: 10px;
  background: var(--accent);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 700;
}
.brand-text {
  font-size: 19px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.3px;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 1;
  justify-content: center;
}
.nav-link {
  display: inline-block;
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-pill);
  position: relative;
  transition: var(--transition);
}
.nav-link:hover {
  color: var(--primary);
  background: rgba(15, 166, 120, 0.06);
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 2px;
  height: 2px;
  border-radius: 2px;
  background: var(--primary);
  opacity: 0;
  transform: scaleX(0);
  transition: var(--transition);
}
.nav-link:hover::after {
  opacity: 1;
  transform: scaleX(1);
}
.nav-link.active {
  color: var(--primary);
  font-weight: 600;
}
.nav-link.active::after {
  opacity: 1;
  transform: scaleX(1);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}
.search-box {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #F3F4F6;
  border-radius: var(--radius-pill);
  padding: 8px 14px;
  min-width: 180px;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid transparent;
}
.search-box:hover {
  border-color: var(--border);
  background: #EDEEF0;
}
.search-box i {
  font-size: 13px;
  color: var(--text-muted);
}
.search-placeholder {
  font-size: 13px;
  color: var(--text-muted);
  white-space: nowrap;
}
.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--light);
  color: var(--text);
  font-size: 18px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.nav-toggle:hover {
  background: #E8ECEF;
}

/* ========== 文章 Hero ========== */
.article-hero {
  padding: 148px 0 56px;
  background:
    linear-gradient(112deg, rgba(17, 24, 39, 0.92) 0%, rgba(17, 24, 39, 0.72) 45%, rgba(17, 24, 39, 0.5) 100%),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  position: relative;
}
.article-hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 90px;
  background: linear-gradient(180deg, transparent, rgba(17, 24, 39, 0.18));
  pointer-events: none;
}
.article-hero .container {
  position: relative;
  z-index: 2;
  max-width: 860px;
}
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 24px;
}
.breadcrumb a {
  color: rgba(255, 255, 255, 0.85);
  font-weight: 500;
}
.breadcrumb a:hover {
  color: #FFFFFF;
  text-decoration: underline;
}
.breadcrumb-sep {
  color: rgba(255, 255, 255, 0.5);
  font-size: 14px;
}
.breadcrumb-current {
  color: rgba(255, 255, 255, 0.8);
  max-width: 260px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.article-hero h1 {
  font-size: 40px;
  font-weight: 800;
  color: #FFFFFF;
  line-height: 1.35;
  letter-spacing: -0.5px;
  margin-bottom: 20px;
}
.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 18px;
  color: rgba(255, 255, 255, 0.8);
  font-size: 14px;
}
.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.meta-item i {
  font-size: 13px;
  opacity: 0.8;
}
.article-hero .tag {
  background: rgba(255, 106, 0, 0.22);
  color: #FFB37D;
}

/* ========== 正文阅读区 ========== */
.article-content-section {
  padding: 64px 0 72px;
  background: #FFFFFF;
}
.article-container {
  max-width: 820px;
}
#cms-article-body {
  font-size: 17px;
  line-height: 1.9;
  color: var(--text);
}
#cms-article-body > * + * {
  margin-top: 1.4em;
}
#cms-article-body p {
  margin: 0 0 1.5em;
  color: #374151;
}
#cms-article-body h2 {
  font-size: 28px;
  font-weight: 700;
  margin: 48px 0 20px;
  padding-left: 14px;
  border-left: 4px solid var(--primary);
  color: var(--text);
  line-height: 1.4;
}
#cms-article-body h3 {
  font-size: 22px;
  font-weight: 600;
  margin: 36px 0 16px;
  color: var(--text);
  padding-left: 12px;
  position: relative;
}
#cms-article-body h3::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 4px;
  height: 18px;
  border-radius: 4px;
  background: var(--primary);
}
#cms-article-body h4 {
  font-size: 18px;
  font-weight: 600;
  margin: 28px 0 12px;
  color: var(--text);
}
#cms-article-body blockquote {
  border-left: 4px solid var(--primary);
  background: #F0FDF9;
  padding: 18px 22px;
  border-radius: 0 12px 12px 0;
  margin: 28px 0;
  color: var(--text-secondary);
  font-style: normal;
}
#cms-article-body ul,
#cms-article-body ol {
  margin: 16px 0 24px;
  padding-left: 22px;
}
#cms-article-body ul li {
  position: relative;
  margin-bottom: 10px;
  padding-left: 8px;
  color: #374151;
}
#cms-article-body ul li::marker {
  color: var(--primary);
  font-size: 1.2em;
}
#cms-article-body ol li {
  margin-bottom: 10px;
  color: #374151;
}
#cms-article-body img {
  max-width: 100%;
  height: auto;
  border-radius: 16px;
  margin: 28px 0;
  box-shadow: var(--shadow);
}
#cms-article-body a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}
#cms-article-body a:hover {
  color: var(--accent);
}
#cms-article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 28px 0;
  font-size: 15px;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
}
#cms-article-body th,
#cms-article-body td {
  border: 1px solid var(--border);
  padding: 12px 16px;
  text-align: left;
}
#cms-article-body th {
  background: var(--light);
  font-weight: 600;
  color: var(--text);
}
#cms-article-body code {
  background: #F3F4F6;
  border-radius: 6px;
  padding: 2px 8px;
  font-size: 14px;
  color: #E11D48;
}
#cms-article-body pre {
  background: #F8FAFC;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  overflow-x: auto;
  margin: 28px 0;
}
#cms-article-body pre code {
  background: none;
  padding: 0;
}

/* 内容未找到 */
.not-found-box {
  text-align: center;
  padding: 60px 24px;
  background: var(--light);
  border-radius: var(--radius);
  border: 1px dashed var(--border);
}
.not-found-box i {
  font-size: 48px;
  color: var(--text-muted);
  margin-bottom: 20px;
}
.not-found-box h2 {
  font-size: 26px;
  font-weight: 700;
  margin-bottom: 12px;
  border: none;
  padding: 0;
}
.not-found-box p {
  color: var(--text-secondary);
  margin-bottom: 28px;
  font-size: 15px;
}
.not-found-box .btn {
  margin: 0 6px;
}

/* ========== 文章底部 ========== */
.article-bottom-section {
  padding: 0 0 72px;
  background: #FFFFFF;
  border-top: 1px solid var(--light);
}
.article-bottom-inner {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
  padding-top: 36px;
}
.article-tags {
  display: flex;
  align-items: center;
  gap: 10px;
}
.article-tags .tag {
  font-size: 13px;
  padding: 6px 14px;
}
.article-nav-links {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* ========== 相关推荐 ========== */
.related-section {
  padding: 72px 0 80px;
  background: var(--light);
}
.related-section .section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 40px;
}
.related-section .section-head h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--text);
  margin: 0;
  letter-spacing: -0.4px;
}
.related-section .section-head p {
  color: var(--text-muted);
  font-size: 14px;
  margin: 8px 0 0;
}
.cms-related-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.related-card {
  display: flex;
  flex-direction: column;
  background: #FFFFFF;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: var(--transition);
}
.related-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: transparent;
}
.related-card .card-thumb {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  position: relative;
  background: var(--light);
}
.related-card .card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.related-card:hover .card-thumb img {
  transform: scale(1.05);
}
.related-card .card-body {
  padding: 20px 20px 22px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.related-card .card-body h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.5;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: var(--transition);
}
.related-card:hover .card-body h3 {
  color: var(--primary);
}
.related-card .card-body p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-card .card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
}
.related-card .card-link {
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.related-card .card-link i {
  transition: transform 0.2s ease;
}
.related-card:hover .card-link i {
  transform: translateX(3px);
}

/* ========== CTA 区 ========== */
.cta-section {
  padding: 88px 0;
  background:
    linear-gradient(135deg, rgba(17, 24, 39, 0.94) 0%, rgba(17, 24, 39, 0.85) 100%),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  position: relative;
  text-align: center;
}
.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
}
.cta-inner {
  max-width: 720px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}
.cta-section h2 {
  font-size: 38px;
  font-weight: 800;
  color: #FFFFFF;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}
.cta-section p {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.8;
  margin-bottom: 36px;
}
.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.cta-buttons .btn-primary {
  box-shadow: 0 4px 18px rgba(255, 106, 0, 0.35);
}
.cta-buttons .btn-outline {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.6);
  color: #FFFFFF;
}
.cta-buttons .btn-outline:hover {
  border-color: var(--primary);
  background: rgba(15, 166, 120, 0.12);
  color: #FFFFFF;
}

/* ========== 页脚 ========== */
.site-footer {
  background: #111827;
  padding: 72px 0 0;
  color: #9CA3AF;
}
.footer-main {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer-brand .brand {
  margin-bottom: 16px;
}
.footer-brand .brand-text {
  color: #FFFFFF;
}
.footer-brand .brand-icon {
  background: var(--accent);
  color: #FFFFFF;
}
.footer-brand p {
  font-size: 13px;
  line-height: 1.8;
  color: #94A3B8;
  max-width: 340px;
}
.footer-title {
  font-size: 16px;
  font-weight: 600;
  color: #FFFFFF;
  margin-bottom: 20px;
}
.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-links li {
  margin-bottom: 12px;
}
.footer-links a {
  font-size: 14px;
  color: #94A3B8;
  transition: var(--transition);
}
.footer-links a:hover {
  color: var(--primary);
  padding-left: 4px;
}
.footer-contact p {
  font-size: 14px;
  color: #94A3B8;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.footer-contact p i {
  color: var(--primary);
  font-size: 14px;
  width: 16px;
  text-align: center;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: #64748B;
}
.footer-bottom .icp {
  color: #64748B;
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .header-inner {
    gap: 16px;
    padding-left: 20px;
    padding-right: 20px;
  }
  .search-box {
    min-width: 130px;
  }
  .cms-related-list {
    grid-template-columns: repeat(2, 1fr);
  }
  .related-card:last-child {
    display: none;
  }
  .article-hero h1 {
    font-size: 34px;
  }
}
@media (max-width: 768px) {
  .header-inner {
    gap: 12px;
  }
  .main-nav {
    position: fixed;
    top: 68px;
    right: -100%;
    width: 280px;
    height: calc(100vh - 68px);
    background: #FFFFFF;
    flex-direction: column;
    align-items: flex-start;
    padding: 24px;
    gap: 8px;
    transition: right 0.3s ease;
    box-shadow: -8px 0 24px rgba(17, 24, 39, 0.1);
    justify-content: flex-start;
    display: flex;
    z-index: 999;
  }
  .main-nav.nav-open {
    right: 0;
  }
  .nav-link {
    width: 100%;
    padding: 12px 14px;
    font-size: 16px;
  }
  .nav-link::after {
    display: none;
  }
  .nav-toggle {
    display: flex;
  }
  .search-box {
    display: none;
  }
  .header-actions .btn-sm {
    padding: 8px 16px;
    font-size: 13px;
  }
  .article-hero {
    padding: 120px 0 44px;
  }
  .article-hero h1 {
    font-size: 26px;
  }
  .article-bottom-inner {
    flex-direction: column;
    align-items: flex-start;
  }
  .cms-related-list {
    grid-template-columns: 1fr;
  }
  .related-card:last-child {
    display: flex;
  }
  .cta-section {
    padding: 64px 0;
  }
  .cta-section h2 {
    font-size: 28px;
  }
  .footer-main {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-bottom {
    justify-content: center;
    text-align: center;
  }
}
@media (max-width: 520px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }
  .article-hero h1 {
    font-size: 22px;
  }
  .breadcrumb {
    font-size: 12px;
  }
  .article-meta {
    gap: 12px;
    font-size: 13px;
  }
  #cms-article-body {
    font-size: 16px;
  }
  #cms-article-body h2 {
    font-size: 22px;
  }
  .btn-lg {
    padding: 14px 28px;
    font-size: 15px;
  }
  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }
  .cta-buttons .btn {
    width: 100%;
  }
  .related-section .section-head {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* roulang page: category1 */
:root {
    --primary: #0FA678;
    --primary-dark: #0B8A63;
    --primary-light: rgba(15, 166, 120, 0.12);
    --accent: #FF6A00;
    --accent-hover: #FF7D1A;
    --dark: #111827;
    --dark-2: #1F2937;
    --light: #F6F8F9;
    --text: #1F2937;
    --text-sub: #64748B;
    --text-muted: #9CA3AF;
    --border: #E6EAF0;
    --radius: 16px;
    --radius-sm: 8px;
    --shadow: 0 2px 12px rgba(17, 24, 39, 0.05);
    --shadow-hover: 0 8px 24px rgba(17, 24, 39, 0.08);
    --transition: all .25s ease;
    --container-width: 1200px;
    --nav-height: 68px;
  }

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

  html {
    scroll-behavior: smooth;
  }

  body {
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: #fff;
    color: var(--text);
    font-size: 16px;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
  }

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

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

  button,
  input,
  kbd {
    font-family: inherit;
  }

  ul,
  ol {
    list-style: none;
  }

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

  .grid-container {
    max-width: var(--container-width);
  }

  .section {
    padding: 84px 0;
  }

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

  .section-header h2 {
    font-size: 34px;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: var(--text);
    line-height: 1.3;
  }

  .section-header p {
    font-size: 16px;
    color: var(--text-sub);
    margin-top: 8px;
  }

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

  /* ===== Buttons ===== */
  .btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: var(--accent);
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    padding: 12px 28px;
    border-radius: 999px;
    border: 0;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 2px 10px rgba(255, 106, 0, 0.18);
    line-height: 1.4;
  }

  .btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 106, 0, 0.3);
    color: #fff;
  }

  .btn-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: transparent;
    border: 1px solid #D1D5DB;
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    padding: 12px 28px;
    border-radius: 999px;
    transition: var(--transition);
    line-height: 1.4;
  }

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

  .btn-outline-light {
    border-color: rgba(255, 255, 255, 0.7);
    color: #fff;
  }

  .btn-outline-light:hover {
    border-color: #fff;
    color: #fff;
    background: rgba(255, 255, 255, 0.08);
  }

  .btn-block {
    display: flex;
    width: 100%;
  }

  .btn-lg {
    padding: 14px 36px;
    font-size: 16px;
  }

  /* ===== Header / Nav ===== */
  .site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    height: var(--nav-height);
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border);
  }

  .header-inner {
    height: var(--nav-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
  }

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

  .brand-icon {
    width: 34px;
    height: 34px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--accent), #FF8A3D);
    color: #fff;
    font-size: 18px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(255, 106, 0, 0.3);
  }

  .brand-text {
    font-size: 20px;
    font-weight: 600;
    color: var(--text);
    letter-spacing: -0.3px;
  }

  .main-nav {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-left: auto;
  }

  .main-nav .nav-link {
    display: inline-block;
    padding: 10px 16px;
    font-size: 15px;
    font-weight: 500;
    color: #4B5563;
    border-radius: 8px;
    position: relative;
    transition: var(--transition);
  }

  .main-nav .nav-link::after {
    content: "";
    position: absolute;
    left: 16px;
    right: 16px;
    bottom: 4px;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
    transform: scaleX(0);
    transform-origin: left center;
    transition: transform 0.25s ease;
  }

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

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

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

  .main-nav .nav-link.active::after {
    transform: scaleX(1);
    background: var(--accent);
  }

  .header-actions {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-left: 16px;
    flex-shrink: 0;
  }

  .search-box {
    display: flex;
    align-items: center;
    gap: 8px;
    background: #F3F4F6;
    border-radius: 999px;
    padding: 9px 16px;
    font-size: 13px;
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid transparent;
    min-width: 200px;
    position: relative;
  }

  .search-box:hover,
  .search-box:focus-within {
    border-color: var(--primary);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(15, 166, 120, 0.1);
  }

  .search-box kbd {
    display: inline-block;
    background: #fff;
    border: 1px solid #D1D5DB;
    border-radius: 5px;
    padding: 2px 7px;
    font-size: 11px;
    color: var(--text-sub);
    margin-left: 6px;
    letter-spacing: 0.5px;
  }

  .btn-cta {
    padding: 10px 22px;
    font-size: 14px;
  }

  .nav-toggle {
    display: none;
    background: none;
    border: 1px solid var(--border);
    border-radius: 10px;
    width: 42px;
    height: 42px;
    font-size: 18px;
    color: var(--text);
    cursor: pointer;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
  }

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

  /* ===== Command Panel ===== */
  .command-panel {
    position: fixed;
    top: 74px;
    left: 50%;
    transform: translateX(-50%) translateY(-8px);
    width: 560px;
    max-width: 92vw;
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.12);
    border: 1px solid var(--border);
    padding: 18px;
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
  }

  .command-panel.active {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
  }

  .command-panel input {
    width: 100%;
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 12px 16px;
    font-size: 14px;
    outline: none;
    transition: var(--transition);
  }

  .command-panel input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(15, 166, 120, 0.12);
  }

  .cmd-tags {
    display: flex;
    gap: 8px;
    margin: 14px 0;
  }

  .cmd-tags span {
    font-size: 12px;
    font-weight: 600;
    background: var(--light);
    color: var(--text-sub);
    padding: 5px 14px;
    border-radius: 999px;
    cursor: pointer;
    transition: var(--transition);
  }

  .cmd-tags span:hover {
    background: var(--primary-light);
    color: var(--primary);
  }

  .cmd-list li {
    padding: 10px 12px;
    border-radius: 10px;
    font-size: 14px;
    color: var(--text);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 10px;
  }

  .cmd-list li i {
    color: var(--primary);
    width: 20px;
    text-align: center;
  }

  .cmd-list li:hover {
    background: var(--light);
  }

  /* ===== Hero Banner ===== */
  .hero-banner {
    position: relative;
    padding: 160px 0 120px;
    background: linear-gradient(90deg, rgba(17, 24, 39, 0.88) 0%, rgba(17, 24, 39, 0.5) 60%, rgba(17, 24, 39, 0.2) 100%), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  }

  .breadcrumb {
    display: flex;
    align-items: center;
    gap: 10px;
    color: rgba(255, 255, 255, 0.65);
    font-size: 14px;
    margin-bottom: 20px;
  }

  .breadcrumb i {
    font-size: 11px;
    color: rgba(255, 255, 255, 0.4);
  }

  .hero-title {
    color: #fff;
    font-size: 46px;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.5px;
    margin-bottom: 16px;
  }

  .hero-title span {
    color: #FFB37A;
  }

  .hero-desc {
    color: rgba(255, 255, 255, 0.82);
    font-size: 17px;
    max-width: 540px;
    line-height: 1.8;
    margin-bottom: 32px;
  }

  .hero-actions {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
  }

  .hero-meta {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(17, 24, 39, 0.35);
    backdrop-filter: blur(4px);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 14px 0;
  }

  .hero-meta-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
  }

  .hero-meta-stats {
    display: flex;
    gap: 24px;
    color: rgba(255, 255, 255, 0.8);
    font-size: 14px;
  }

  .hero-meta-stats strong {
    color: #fff;
    font-size: 16px;
  }

  .hero-meta-tip {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #FFC79E;
    font-size: 13px;
  }

  .hero-meta-tip span {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #22C55E;
    animation: pulse 1.6s infinite;
  }

  @keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.3); }
  }

  /* ===== Feature Section ===== */
  .feature-section {
    padding: 84px 0;
    background: #fff;
  }

  .feature-item {
    background: var(--light);
    border-radius: var(--radius);
    padding: 32px 26px;
    height: 100%;
    transition: var(--transition);
    border: 1px solid transparent;
  }

  .feature-item:hover {
    background: #fff;
    border-color: var(--border);
    box-shadow: var(--shadow-hover);
    transform: translateY(-4px);
  }

  .feature-icon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    margin-bottom: 18px;
    background: var(--primary-light);
    color: var(--primary);
  }

  .feature-item:nth-child(2) .feature-icon {
    background: rgba(255, 106, 0, 0.12);
    color: var(--accent);
  }

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

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

  /* ===== Topic Grid Section ===== */
  .topic-section {
    background: var(--light);
    padding: 84px 0;
  }

  .topic-grid {
    row-gap: 24px;
  }

  .topic-card {
    background: #fff;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    overflow: hidden;
    height: 100%;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
    position: relative;
  }

  .topic-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    transform: scaleX(0);
    transform-origin: left center;
    transition: transform 0.3s ease;
    z-index: 2;
  }

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

  .topic-card:hover::before {
    transform: scaleX(1);
  }

  .topic-cover {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16 / 9;
    background: #E8ECF0;
  }

  .topic-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
  }

  .topic-card:hover .topic-cover img {
    transform: scale(1.04);
  }

  .topic-cover .tag {
    position: absolute;
    top: 14px;
    left: 14px;
  }

  .topic-body {
    padding: 22px 24px 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
  }

  .topic-body h3 {
    font-size: 19px;
    font-weight: 600;
    margin-bottom: 8px;
    line-height: 1.4;
    transition: var(--transition);
  }

  .topic-card:hover .topic-body h3 {
    color: var(--primary);
  }

  .topic-body p {
    font-size: 14px;
    color: var(--text-sub);
    line-height: 1.7;
    margin-bottom: 16px;
    flex: 1;
  }

  .topic-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 13px;
    color: var(--text-muted);
    border-top: 1px solid var(--light);
    padding-top: 14px;
  }

  .topic-meta a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--primary);
    font-weight: 600;
    font-size: 13px;
  }

  .topic-meta a i {
    transition: transform 0.25s ease;
  }

  .topic-meta a:hover i {
    transform: translateX(3px);
  }

  .topic-meta span i {
    margin-right: 4px;
    color: var(--text-muted);
  }

  /* ===== Tag ===== */
  .tag {
    display: inline-block;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 12px;
    font-weight: 600;
    padding: 5px 14px;
    border-radius: 999px;
    line-height: 1.4;
    backdrop-filter: blur(4px);
  }

  .tag-accent {
    background: var(--accent);
    color: #fff;
  }

  .tag-dark {
    background: rgba(17, 24, 39, 0.6);
    color: #fff;
    backdrop-filter: blur(4px);
  }

  /* ===== Sidebar ===== */
  .sidebar {
    display: flex;
    flex-direction: column;
    gap: 24px;
  }

  .side-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 26px 24px;
    box-shadow: var(--shadow);
  }

  .side-card h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 18px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--light);
    position: relative;
  }

  .side-card h4::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -2px;
    width: 32px;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
  }

  .side-topic-list li {
    padding: 10px 0;
    border-bottom: 1px dashed var(--border);
    font-size: 14px;
    font-weight: 500;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 10px;
    transition: var(--transition);
  }

  .side-topic-list li:last-child {
    border-bottom: 0;
  }

  .side-topic-list li i {
    color: var(--primary);
    font-size: 12px;
  }

  .side-topic-list li:hover {
    color: var(--primary);
    padding-left: 4px;
  }

  .side-login {
    background: linear-gradient(135deg, var(--dark), #1E3A2F);
    border-radius: var(--radius);
    padding: 30px 26px;
    color: #fff;
    position: relative;
    overflow: hidden;
  }

  .side-login::after {
    content: "";
    position: absolute;
    right: -30px;
    bottom: -30px;
    width: 100px;
    height: 100px;
    background: var(--accent);
    opacity: 0.2;
    border-radius: 50%;
  }

  .side-login h4 {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 10px;
  }

  .side-login p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 20px;
  }

  /* ===== Process Section ===== */
  .process-section {
    padding: 84px 0;
    background: #fff;
  }

  .process-step {
    text-align: center;
    padding: 34px 20px;
    border-radius: var(--radius);
    transition: var(--transition);
    height: 100%;
  }

  .process-step:hover {
    background: var(--light);
  }

  .step-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 16px;
    box-shadow: 0 4px 14px rgba(15, 166, 120, 0.3);
  }

  .process-step:nth-child(2) .step-num {
    background: var(--accent);
    box-shadow: 0 4px 14px rgba(255, 106, 0, 0.3);
  }

  .process-step:nth-child(3) .step-num {
    background: #8B5CF6;
    box-shadow: 0 4px 14px rgba(139, 92, 246, 0.3);
  }

  .process-step:nth-child(4) .step-num {
    background: #0EA5E9;
    box-shadow: 0 4px 14px rgba(14, 165, 233, 0.3);
  }

  .process-step h3 {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 8px;
  }

  .process-step p {
    font-size: 14px;
    color: var(--text-sub);
    line-height: 1.7;
  }

  /* ===== FAQ Section ===== */
  .faq-section {
    background: var(--light);
    padding: 84px 0;
  }

  .faq-wrap {
    max-width: 800px;
    margin: 0 auto;
  }

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

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

  .faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 20px 24px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    background: none;
    border: none;
    width: 100%;
    text-align: left;
    color: var(--text);
    transition: var(--transition);
  }

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

  .faq-question .faq-icon {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    flex-shrink: 0;
    transition: var(--transition);
  }

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

  .faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    padding: 0 24px;
  }

  .faq-item.active .faq-answer {
    max-height: 300px;
    padding: 0 24px 22px;
  }

  .faq-answer p {
    font-size: 14px;
    color: var(--text-sub);
    line-height: 1.8;
    border-top: 1px solid var(--light);
    padding-top: 18px;
  }

  /* ===== CTA Section ===== */
  .cta-section {
    background: linear-gradient(120deg, #111827 30%, #0E2B21 100%);
    padding: 100px 0;
    position: relative;
    overflow: hidden;
  }

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

  .cta-section::after {
    content: "";
    position: absolute;
    right: -80px;
    top: -80px;
    width: 260px;
    height: 260px;
    border-radius: 50%;
    background: rgba(255, 106, 0, 0.12);
  }

  .cta-inner {
    text-align: center;
    position: relative;
    z-index: 2;
  }

  .cta-inner h2 {
    color: #fff;
    font-size: 34px;
    font-weight: 700;
    letter-spacing: -0.5px;
    margin-bottom: 14px;
  }

  .cta-inner p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 16px;
    margin-bottom: 32px;
  }

  .cta-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
  }

  .cta-section .btn-outline {
    color: #fff;
    border-color: rgba(255, 255, 255, 0.5);
  }

  .cta-section .btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
  }

  /* ===== Footer ===== */
  .site-footer {
    background: #111827;
    color: rgba(255, 255, 255, 0.6);
    padding: 64px 0 0;
  }

  .site-footer::before {
    content: "";
    display: block;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
  }

  .footer-main {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 44px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .footer-brand .brand {
    margin-bottom: 14px;
  }

  .footer-brand .brand-icon {
    background: var(--accent);
  }

  .footer-brand .brand-text {
    color: #fff;
  }

  .footer-brand p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.8;
    max-width: 340px;
  }

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

  .footer-links li {
    margin-bottom: 10px;
  }

  .footer-links a {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.55);
    transition: var(--transition);
  }

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

  .footer-contact p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.55);
    margin-bottom: 8px;
  }

  .footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 20px 0;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
    flex-wrap: wrap;
  }

  .footer-bottom .icp {
    font-size: 12px;
  }

  /* ===== Responsive ===== */
  @media (max-width: 1024px) {
    .section {
      padding: 64px 0;
    }

    .feature-section,
    .topic-section,
    .process-section,
    .faq-section {
      padding: 64px 0;
    }

    .search-box {
      min-width: 140px;
    }

    .main-nav .nav-link {
      padding: 10px 10px;
      font-size: 14px;
    }
  }

  @media (max-width: 768px) {
    .nav-toggle {
      display: flex;
    }

    .header-actions {
      margin-left: 0;
    }

    .header-actions .btn-cta {
      display: none;
    }

    .search-box {
      width: 42px;
      min-width: 42px;
      padding: 10px;
      border-radius: 50%;
      justify-content: center;
    }

    .search-box span,
    .search-box kbd {
      display: none;
    }

    .main-nav {
      position: fixed;
      top: var(--nav-height);
      left: 0;
      right: 0;
      background: #fff;
      flex-direction: column;
      align-items: flex-start;
      padding: 16px 24px;
      gap: 4px;
      box-shadow: 0 12px 32px rgba(0, 0, 0, 0.1);
      border-bottom: 1px solid var(--border);
      transform: translateY(-110%);
      transition: transform 0.3s ease;
      z-index: 99;
      border-radius: 0;
    }

    .main-nav.open {
      transform: translateY(0);
    }

    .main-nav .nav-link {
      width: 100%;
      padding: 12px 8px;
      border-radius: 8px;
    }

    .main-nav .nav-link::after {
      display: none;
    }

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

    .hero-banner {
      padding: 120px 0 90px;
    }

    .hero-title {
      font-size: 34px;
    }

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

    .hero-meta-inner {
      flex-direction: column;
      align-items: flex-start;
    }

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

    .cmd-panel {
      width: 90vw;
    }

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

    .footer-bottom {
      flex-direction: column;
    }
  }

  @media (max-width: 520px) {
    .container {
      padding-left: 18px;
      padding-right: 18px;
    }

    .section {
      padding: 52px 0;
    }

    .feature-section,
    .topic-section,
    .process-section,
    .faq-section {
      padding: 52px 0;
    }

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

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

    .topic-body {
      padding: 18px 18px 16px;
    }

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

    .site-footer {
      padding-top: 48px;
    }
  }

  .fa-regular,
  .fa-solid,
  .fa-brands {
    line-height: 1;
  }

/* roulang page: category2 */
:root {
            --primary: #0FA678;
            --primary-dark: #0C8A64;
            --primary-light: rgba(15, 166, 120, 0.12);
            --accent: #FF6A00;
            --accent-hover: #FF7B1A;
            --accent-light: rgba(255, 106, 0, 0.12);
            --deep: #111827;
            --light: #F6F8F9;
            --text-main: #1F2937;
            --text-sub: #64748B;
            --text-weak: #9CA3AF;
            --border: #E6EAF0;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 12px rgba(17, 24, 39, 0.05);
            --shadow-md: 0 8px 24px rgba(17, 24, 39, 0.08);
            --shadow-lg: 0 16px 48px rgba(17, 24, 39, 0.12);
            --transition: 0.25s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-main);
            background: #fff;
            -webkit-font-smoothing: antialiased;
        }

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

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

        ul,
        ol {
            list-style: none;
        }

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

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

        .section {
            padding: 88px 0;
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: var(--primary-light);
            padding: 6px 16px;
            border-radius: 999px;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }

        .section-label i {
            font-size: 12px;
        }

        .section-title {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-main);
            letter-spacing: -0.5px;
            margin-bottom: 12px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-sub);
            max-width: 640px;
            line-height: 1.8;
        }

        /* 按钮 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            border-radius: 999px;
            padding: 12px 28px;
            transition: all var(--transition);
            cursor: pointer;
            border: 1px solid transparent;
            white-space: nowrap;
        }

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

        .btn-primary {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 2px 8px rgba(255, 106, 0, 0.2);
        }

        .btn-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 4px 14px rgba(255, 106, 0, 0.3);
            color: #fff;
        }

        .btn-outline {
            background: transparent;
            border-color: #D1D5DB;
            color: var(--text-main);
        }

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

        .btn-light {
            background: #fff;
            color: var(--text-main);
        }

        .btn-light:hover {
            background: rgba(255, 255, 255, 0.9);
            transform: translateY(-2px);
        }

        .btn-sm {
            padding: 8px 20px;
            font-size: 14px;
        }

        .btn-lg {
            padding: 16px 36px;
            font-size: 16px;
        }

        /* Header */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.82);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--border);
        }

        .header-inner {
            display: flex;
            align-items: center;
            gap: 32px;
            height: 68px;
        }

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

        .brand-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--accent);
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 10px rgba(255, 106, 0, 0.25);
        }

        .brand-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            letter-spacing: -0.3px;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
            margin-left: 12px;
        }

        .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-main);
            padding: 6px 2px;
            position: relative;
            transition: color var(--transition);
        }

        .nav-link::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 100%;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition);
        }

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

        .nav-link:hover::after,
        .nav-link.active::after {
            transform: scaleX(1);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-left: auto;
        }

        .search-wrap {
            position: relative;
        }

        .search-box {
            display: flex;
            align-items: center;
            gap: 8px;
            background: #F3F4F6;
            border-radius: 999px;
            padding: 9px 14px;
            width: 240px;
            cursor: pointer;
            transition: all var(--transition);
            border: 1px solid transparent;
        }

        .search-box:hover {
            border-color: rgba(15, 166, 120, 0.4);
            background: #EEF1F3;
        }

        .search-box i {
            color: var(--text-weak);
            font-size: 13px;
        }

        .search-box input {
            flex: 1;
            font-size: 13px;
            color: var(--text-main);
            background: transparent;
        }

        .search-box input::placeholder {
            color: var(--text-weak);
        }

        .kbd {
            font-size: 11px;
            font-weight: 600;
            color: var(--text-weak);
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 4px;
            padding: 2px 6px;
            line-height: 1.4;
        }

        .command-panel {
            position: absolute;
            top: calc(100% + 12px);
            right: 0;
            width: 360px;
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border);
            padding: 16px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(8px);
            transition: all 0.2s ease;
            z-index: 999;
        }

        .command-panel.show {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .cp-header {
            display: flex;
            align-items: center;
            gap: 10px;
            background: var(--light);
            border-radius: var(--radius-md);
            padding: 10px 14px;
            margin-bottom: 14px;
        }

        .cp-header i {
            color: var(--text-weak);
            font-size: 14px;
        }

        .cp-header input {
            flex: 1;
            font-size: 14px;
            color: var(--text-main);
        }

        .cp-header input::placeholder {
            color: var(--text-weak);
        }

        .cp-tags {
            display: flex;
            gap: 8px;
            margin-bottom: 14px;
        }

        .tag-chip {
            display: inline-flex;
            align-items: center;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 999px;
            background: var(--primary-light);
            color: var(--primary);
            cursor: default;
        }

        .cp-links {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .cp-link {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-main);
            padding: 10px 12px;
            border-radius: var(--radius-sm);
            transition: all var(--transition);
        }

        .cp-link i {
            color: var(--text-weak);
            font-size: 13px;
            width: 18px;
            text-align: center;
        }

        .cp-link:hover {
            background: var(--light);
            color: var(--primary);
        }

        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            background: var(--light);
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--text-main);
            cursor: pointer;
            transition: all var(--transition);
        }

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

        /* Hero */
        .category-hero {
            position: relative;
            min-height: 440px;
            display: flex;
            align-items: center;
            padding: 140px 0 72px;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
        }

        .category-hero::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, rgba(17, 24, 39, 0.88) 0%, rgba(17, 24, 39, 0.62) 55%, rgba(17, 24, 39, 0.35) 100%);
        }

        .category-hero .container {
            position: relative;
            z-index: 1;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: #fff;
            background: rgba(255, 255, 255, 0.14);
            border: 1px solid rgba(255, 255, 255, 0.2);
            padding: 6px 16px;
            border-radius: 999px;
            margin-bottom: 20px;
            letter-spacing: 0.4px;
        }

        .hero-badge i {
            color: var(--accent);
        }

        .hero-title {
            font-size: 46px;
            font-weight: 700;
            color: #fff;
            line-height: 1.25;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
        }

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

        .hero-subtitle {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.8;
            max-width: 560px;
            margin-bottom: 32px;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 36px;
        }

        .hero-stats {
            display: flex;
            gap: 40px;
            flex-wrap: wrap;
        }

        .hero-stat {
            display: flex;
            flex-direction: column;
        }

        .hero-stat .num {
            font-size: 26px;
            font-weight: 700;
            color: #fff;
        }

        .hero-stat .num em {
            font-style: normal;
            color: var(--primary);
        }

        .hero-stat .label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 2px;
        }

        /* 内容区 */
        .content-section {
            padding: 88px 0 72px;
            background: var(--light);
        }

        .content-layout {
            display: flex;
            gap: 36px;
            align-items: flex-start;
        }

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

        .section-head {
            margin-bottom: 36px;
        }

        .timeline-list {
            position: relative;
        }

        .timeline-item {
            position: relative;
            padding: 0 0 30px 78px;
        }

        .timeline-item:last-child {
            padding-bottom: 0;
        }

        .timeline-item::before {
            content: "";
            position: absolute;
            left: 24px;
            top: 52px;
            bottom: 0;
            width: 2px;
            background: linear-gradient(to bottom, var(--primary) 0%, rgba(15, 166, 120, 0.15) 100%);
        }

        .timeline-item:last-child::before {
            display: none;
        }

        .timeline-index {
            position: absolute;
            left: 0;
            top: 0;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: #fff;
            border: 2px solid var(--primary);
            color: var(--primary);
            font-size: 15px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 0 0 5px rgba(15, 166, 120, 0.1);
            z-index: 1;
        }

        .timeline-content {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px 32px;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }

        .timeline-content::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.35s ease;
        }

        .timeline-content:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }

        .timeline-content:hover::before {
            transform: scaleX(1);
        }

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

        .card-title {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
            line-height: 1.5;
        }

        .card-text {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid var(--border);
            padding-top: 16px;
        }

        .card-date {
            font-size: 13px;
            color: var(--text-weak);
        }

        .card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all var(--transition);
        }

        .card-link i {
            font-size: 12px;
            transition: transform var(--transition);
        }

        .card-link:hover {
            color: var(--accent);
        }

        .card-link:hover i {
            transform: translateX(4px);
        }

        /* 侧边栏 */
        .sidebar {
            width: 340px;
            flex-shrink: 0;
            position: sticky;
            top: 92px;
        }

        .widget {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 24px;
            margin-bottom: 24px;
            box-shadow: var(--shadow-sm);
        }

        .widget-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 20px;
            padding-bottom: 14px;
            border-bottom: 1px solid var(--border);
        }

        .widget-title i {
            color: var(--primary);
            font-size: 15px;
        }

        .side-topic-card {
            display: flex;
            gap: 14px;
            padding: 12px 0;
            border-bottom: 1px solid var(--border);
            transition: all var(--transition);
            align-items: center;
        }

        .side-topic-card:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .side-topic-card:hover .side-topic-name {
            color: var(--primary);
        }

        .side-topic-img {
            width: 68px;
            height: 52px;
            border-radius: var(--radius-sm);
            object-fit: cover;
            flex-shrink: 0;
        }

        .side-topic-info {
            flex: 1;
            min-width: 0;
        }

        .side-topic-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.4;
            transition: color var(--transition);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .side-topic-meta {
            font-size: 12px;
            color: var(--text-weak);
            margin-top: 4px;
        }

        .login-card {
            background: linear-gradient(145deg, var(--deep) 0%, #1b2434 100%);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            color: #fff;
            text-align: center;
            border: none;
            position: relative;
            overflow: hidden;
        }

        .login-card::before {
            content: "";
            position: absolute;
            top: -20px;
            right: -20px;
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background: rgba(255, 106, 0, 0.15);
        }

        .login-card i {
            font-size: 24px;
            color: var(--accent);
            margin-bottom: 12px;
        }

        .login-card h4 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .login-card p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.7;
            margin-bottom: 18px;
        }

        .login-card .btn {
            width: 100%;
        }

        /* 流程 */
        .process-section {
            padding: 88px 0;
            background: #fff;
        }

        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            margin-top: 44px;
        }

        .process-step {
            position: relative;
            background: var(--light);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            transition: all var(--transition);
        }

        .process-step:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-6px);
            border-color: transparent;
        }

        .step-num {
            font-size: 28px;
            font-weight: 800;
            color: rgba(15, 166, 120, 0.18);
            line-height: 1;
            margin-bottom: 16px;
            transition: color var(--transition);
        }

        .process-step:hover .step-num {
            color: rgba(15, 166, 120, 0.6);
        }

        .step-icon {
            width: 46px;
            height: 46px;
            border-radius: var(--radius-md);
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            margin-bottom: 16px;
        }

        .step-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
        }

        .step-text {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
        }

        /* 数据 */
        .stats-section {
            padding: 80px 0;
            background: var(--deep);
            position: relative;
            overflow: hidden;
        }

        .stats-section::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -40px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(15, 166, 120, 0.08);
        }

        .stats-section::after {
            content: "";
            position: absolute;
            bottom: -80px;
            left: 10%;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: rgba(255, 106, 0, 0.06);
        }

        .stats-section .section-title {
            color: #fff;
        }

        .stats-section .section-desc {
            color: rgba(255, 255, 255, 0.6);
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 36px;
            margin-top: 48px;
            position: relative;
            z-index: 1;
        }

        .stat-item {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            text-align: center;
            transition: all var(--transition);
        }

        .stat-item:hover {
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-4px);
        }

        .stat-number {
            font-size: 38px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 8px;
        }

        .stat-number em {
            font-style: normal;
            color: var(--primary);
        }

        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
        }

        /* FAQ */
        .faq-section {
            padding: 88px 0;
            background: var(--light);
        }

        .faq-layout {
            display: flex;
            gap: 48px;
            align-items: flex-start;
        }

        .faq-intro {
            flex: 0 0 360px;
            position: sticky;
            top: 100px;
        }

        .faq-intro .section-desc {
            margin-bottom: 24px;
        }

        .faq-list {
            flex: 1;
        }

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

        .faq-item.active {
            box-shadow: var(--shadow-sm);
            border-color: rgba(15, 166, 120, 0.4);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            cursor: pointer;
            transition: color var(--transition);
            text-align: left;
            background: transparent;
        }

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

        .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: var(--light);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: var(--text-sub);
            transition: all 0.3s ease;
            flex-shrink: 0;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }

        .faq-answer-inner {
            padding: 0 24px 20px;
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.9;
            border-top: 1px solid var(--border);
            padding-top: 16px;
        }

        /* CTA */
        .cta-section {
            padding: 88px 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            position: relative;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, rgba(17, 24, 39, 0.92) 0%, rgba(17, 24, 39, 0.7) 100%);
        }

        .cta-section .container {
            position: relative;
            z-index: 1;
        }

        .cta-inner {
            text-align: center;
            padding: 40px 0;
        }

        .cta-title {
            font-size: 38px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }

        .cta-title span {
            color: var(--primary);
        }

        .cta-desc {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.75);
            max-width: 560px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }

        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* Footer */
        .site-footer {
            background: var(--deep);
            border-top: 4px solid;
            border-image: linear-gradient(90deg, var(--primary), var(--accent)) 1;
        }

        .footer-main {
            display: grid;
            grid-template-columns: 2fr 1fr 1.4fr;
            gap: 48px;
            padding: 64px 0 40px;
        }

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

        .footer-brand .brand-text {
            color: #fff;
            font-size: 20px;
        }

        .footer-brand p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
            line-height: 1.8;
            max-width: 320px;
        }

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

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            transition: color var(--transition);
        }

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

        .footer-contact p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            margin-bottom: 10px;
            line-height: 1.7;
        }

        .footer-contact p i {
            margin-right: 8px;
            color: var(--primary);
            font-size: 13px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-bottom span {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-bottom .icp {
            color: rgba(255, 255, 255, 0.3);
        }

        /* 响应式 */
        @media screen and (max-width: 1024px) {
            .content-layout {
                flex-direction: column;
            }

            .sidebar {
                width: 100%;
                position: static;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }

            .widget {
                margin-bottom: 0;
            }

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

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

            .faq-layout {
                flex-direction: column;
                gap: 32px;
            }

            .faq-intro {
                flex: none;
                position: static;
            }

            .main-nav {
                gap: 18px;
            }
        }

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

            .site-header {
                backdrop-filter: blur(10px);
            }

            .header-inner {
                gap: 12px;
            }

            .main-nav {
                position: fixed;
                top: 68px;
                left: 0;
                width: 100%;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                padding: 12px 24px 20px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-lg);
                transform: translateY(-12px);
                opacity: 0;
                visibility: hidden;
                transition: all 0.3s ease;
                margin-left: 0;
                z-index: 998;
            }

            .main-nav.open {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }

            .nav-link {
                padding: 14px 8px;
                font-size: 16px;
                border-bottom: 1px solid var(--border);
            }

            .nav-link::after {
                display: none;
            }

            .nav-link.active {
                color: var(--primary);
                background: var(--primary-light);
                border-radius: var(--radius-sm);
                padding-left: 14px;
            }

            .search-box {
                width: 40px;
                padding: 9px;
                justify-content: center;
            }

            .search-box input,
            .search-box .kbd {
                display: none;
            }

            .search-box i {
                font-size: 16px;
            }

            .command-panel {
                width: calc(100vw - 48px);
                right: 0;
            }

            .nav-toggle {
                display: flex;
            }

            .header-actions .btn {
                display: none;
            }

            .category-hero {
                min-height: 420px;
                padding: 110px 0 56px;
            }

            .hero-title {
                font-size: 34px;
            }

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

            .hero-stats {
                gap: 24px;
            }

            .hero-stat .num {
                font-size: 22px;
            }

            .timeline-item {
                padding-left: 60px;
            }

            .timeline-index {
                width: 40px;
                height: 40px;
                font-size: 13px;
            }

            .timeline-item::before {
                left: 20px;
                top: 44px;
            }

            .timeline-content {
                padding: 22px;
            }

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

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

            .cta-title {
                font-size: 30px;
            }
        }

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

            .section {
                padding: 52px 0;
            }

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

            .hero-title {
                font-size: 30px;
            }

            .hero-subtitle {
                font-size: 14px;
            }

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

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

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

            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 14px;
            }

            .stat-number {
                font-size: 30px;
            }

            .stat-item {
                padding: 22px 16px;
            }

            .timeline-item {
                padding: 0 0 24px 0;
            }

            .timeline-item::before {
                display: none;
            }

            .timeline-index {
                position: static;
                display: inline-flex;
                margin-bottom: 12px;
                width: 38px;
                height: 38px;
            }

            .card-footer {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }

            .faq-question {
                padding: 16px 18px;
                font-size: 15px;
            }

            .faq-answer-inner {
                padding: 0 18px 16px;
            }

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

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }