/* roulang page: index */
:root {
  --color-bg: #f5f7fa;
  --color-card: #ffffff;
  --color-primary: #1458a3;
  --color-primary-hover: #0e3f7a;
  --color-primary-active: #0a2f5c;
  --color-accent: #2e86de;
  --color-neon: #00e0a4;
  --color-dark: #0b1626;
  --color-title: #14283d;
  --color-body: #3c4b5a;
  --color-muted: #8a99a8;
  --color-border: #e8edf2;
  --color-error: #d93026;
  --radius-card: 16px;
  --radius-btn: 8px;
  --shadow-card: 0 8px 24px rgba(16,42,67,0.06);
  --shadow-card-hover: 0 12px 32px rgba(16,42,67,0.12);
  --transition: 0.2s ease;
  --font-stack: -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-stack);
  background: var(--color-bg);
  color: var(--color-body);
  line-height: 1.7;
  padding-top: 64px;
  -webkit-font-smoothing: antialiased;
}

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

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

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

input, textarea {
  font-family: inherit;
  font-size: 15px;
}

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

/* ===== Navigation ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: 64px;
  background: var(--color-dark);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.site-header .header-inner {
  max-width: 1200px;
  height: 64px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand-logo {
  display: flex;
  align-items: baseline;
  gap: 8px;
  white-space: nowrap;
}

.brand-logo .brand-name {
  font-size: 20px;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 0.02em;
  text-shadow: 0 0 12px rgba(0,224,164,0.4);
}

.brand-logo .brand-domain {
  font-size: 12px;
  color: #6b7c8e;
  letter-spacing: 0.03em;
}

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

.site-nav .nav-link {
  font-size: 15px;
  color: #cbd6e3;
  font-weight: 500;
  padding: 6px 2px;
  position: relative;
  white-space: nowrap;
  transition: color var(--transition), text-shadow var(--transition);
}

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

.site-nav .nav-link.active {
  color: var(--color-neon);
  text-shadow: 0 0 10px rgba(0,224,164,0.5);
}

.site-nav .nav-link.active::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2px;
  background: linear-gradient(90deg, var(--color-neon), rgba(0,224,164,0));
  border-radius: 2px;
  box-shadow: 0 0 8px rgba(0,224,164,0.6);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  padding: 0 20px;
  background: var(--color-primary);
  color: #ffffff;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-btn);
  box-shadow: 0 0 12px rgba(0,224,164,0.35);
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
  white-space: nowrap;
}

.nav-cta:hover {
  background: var(--color-primary-hover);
  box-shadow: 0 0 20px rgba(0,224,164,0.6);
  color: #ffffff;
  transform: translateY(-1px);
}

.header-burger {
  display: none;
  color: #ffffff;
  font-size: 22px;
  line-height: 1;
  padding: 8px;
}

.mobile-drawer {
  display: none;
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  background: var(--color-dark);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  z-index: 99;
  padding: 12px 24px 20px;
  box-shadow: 0 16px 40px rgba(0,0,0,0.3);
}

.mobile-drawer.open {
  display: block;
}

.mobile-drawer .mobile-nav-link {
  display: block;
  color: #cbd6e3;
  font-size: 16px;
  font-weight: 500;
  line-height: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

.mobile-drawer .mobile-nav-link.active {
  color: var(--color-neon);
}

.mobile-drawer .mobile-nav-link:last-child {
  border-bottom: none;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: calc(100vh - 64px);
  display: flex;
  align-items: center;
  overflow: hidden;
  background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(11,22,38,0.92) 20%, rgba(11,22,38,0.55) 55%, rgba(11,22,38,0.15) 100%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}

.hero h1 {
  font-size: 46px;
  font-weight: 700;
  line-height: 1.25;
  color: #ffffff;
  margin-bottom: 20px;
  letter-spacing: 0.01em;
}

.hero h1 .hl {
  background: linear-gradient(180deg, rgba(0,224,164,0.25) 0%, rgba(0,224,164,0.25) 100%);
  background-position: 0 88%;
  background-size: 100% 28%;
  background-repeat: no-repeat;
  padding: 0 2px;
  color: #ffffff;
  text-shadow: 0 0 18px rgba(0,224,164,0.45);
}

.hero-sub {
  font-size: 18px;
  color: #c7d5e4;
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 520px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  align-items: center;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 32px;
  background: var(--color-primary);
  color: #ffffff;
  font-size: 16px;
  font-weight: 600;
  border-radius: var(--radius-btn);
  transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  box-shadow: 0 4px 16px rgba(20,88,163,0.45);
  color: #ffffff;
  transform: translateY(-2px);
}

.btn-neon {
  box-shadow: 0 0 14px rgba(0,224,164,0.5);
}

.btn-neon:hover {
  box-shadow: 0 0 22px rgba(0,224,164,0.75);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 32px;
  background: rgba(255,255,255,0.06);
  color: #ffffff;
  font-size: 16px;
  font-weight: 600;
  border: 1px solid rgba(46,134,222,0.8);
  border-radius: var(--radius-btn);
  backdrop-filter: blur(4px);
  transition: background var(--transition), border-color var(--transition), transform var(--transition);
}

.btn-outline:hover {
  background: rgba(46,134,222,0.15);
  border-color: var(--color-accent);
  color: #ffffff;
  transform: translateY(-2px);
}

.scroll-hint {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255,255,255,0.5);
  font-size: 22px;
  animation: scrollDown 2s ease-in-out infinite;
  z-index: 3;
}

@keyframes scrollDown {
  0%, 100% { transform: translateX(-50%) translateY(0); opacity: 0.5; }
  50% { transform: translateX(-50%) translateY(10px); opacity: 1; }
}

/* ===== Section common ===== */
.section {
  padding: 80px 0;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 36px;
}

.section-title {
  font-size: 30px;
  font-weight: 700;
  color: var(--color-title);
  line-height: 1.3;
  position: relative;
  padding-left: 16px;
}

.section-title::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 4px;
  border-radius: 4px;
  background: linear-gradient(180deg, var(--color-neon), rgba(0,224,164,0.1));
  box-shadow: 0 0 8px rgba(0,224,164,0.5);
}

.section-more {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
  white-space: nowrap;
  transition: color var(--transition);
}

.section-more:hover {
  color: var(--color-neon);
}

/* ===== Horizontal Slider ===== */
.slider-wrap {
  background: var(--color-card);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  padding: 32px 24px;
}

.slider-track {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  padding-bottom: 12px;
  scrollbar-width: thin;
  scrollbar-color: rgba(0,224,164,0.4) transparent;
  cursor: grab;
  user-select: none;
}

.slider-track::-webkit-scrollbar {
  height: 6px;
}

.slider-track::-webkit-scrollbar-track {
  background: transparent;
}

.slider-track::-webkit-scrollbar-thumb {
  background: linear-gradient(90deg, var(--color-neon), rgba(0,224,164,0.2));
  border-radius: 4px;
}

.slider-track:active {
  cursor: grabbing;
}

.slide-card {
  flex: 0 0 240px;
  width: 240px;
  background: var(--color-bg);
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.slide-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(20,88,163,0.4);
}

.slide-card .cover {
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, #1458a3, #0b1626);
  position: relative;
  overflow: hidden;
}

.slide-card .cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.slide-card .cover .type-tag {
  position: absolute;
  left: 10px;
  top: 10px;
  background: rgba(11,22,38,0.75);
  color: var(--color-neon);
  font-size: 12px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 20px;
  border: 1px solid rgba(0,224,164,0.3);
}

.slide-card .card-body {
  padding: 14px 16px 18px;
}

.slide-card .card-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-title);
  margin-bottom: 6px;
  line-height: 1.4;
}

.slide-card .card-desc {
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ===== Hot Rank Cards ===== */
.rank-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.rank-card {
  background: var(--color-card);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  border: 1px solid transparent;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  display: flex;
  flex-direction: column;
}

.rank-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(20,88,163,0.4);
}

.rank-card .cover {
  aspect-ratio: 16 / 10;
  background: linear-gradient(135deg, #1d3557, #a8dadc);
  position: relative;
  overflow: hidden;
}

.rank-card .cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.rank-badge {
  position: absolute;
  left: 12px;
  top: 12px;
  background: linear-gradient(135deg, #00e0a4, #00b3d9);
  color: #0b1626;
  font-size: 13px;
  font-weight: 800;
  padding: 4px 12px;
  border-radius: 20px;
  box-shadow: 0 0 14px rgba(0,224,164,0.5);
  letter-spacing: 0.02em;
}

.rank-card .card-body {
  padding: 20px 20px 16px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.rank-card .card-body h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-title);
  margin-bottom: 8px;
  line-height: 1.4;
}

.rank-card .meta {
  font-size: 13px;
  color: var(--color-muted);
  margin-bottom: 10px;
}

.rank-card .summary {
  font-size: 14px;
  color: var(--color-body);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 16px;
}

.card-link {
  margin-top: auto;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: color var(--transition), gap var(--transition);
}

.card-link i {
  transition: transform var(--transition);
}

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

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

/* ===== Playlist columns ===== */
.playlist-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.playlist-panel {
  background: var(--color-card);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  padding: 28px;
}

.playlist-panel h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-title);
  margin-bottom: 20px;
  padding-left: 14px;
  position: relative;
}

.playlist-panel h3::before {
  content: '';
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 3px;
  border-radius: 3px;
  background: var(--color-neon);
}

.playlist-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px 12px;
  border-radius: 10px;
  transition: background var(--transition);
}

.playlist-item:hover {
  background: #f0f5fc;
}

.playlist-item + .playlist-item {
  margin-top: 4px;
}

.playlist-item .thumb {
  width: 64px;
  height: 64px;
  border-radius: 8px;
  overflow: hidden;
  flex-shrink: 0;
  background: linear-gradient(135deg, #1458a3, #2e86de);
}

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

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

.playlist-item .info .name {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-title);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 2px;
}

.playlist-item .info .meta {
  font-size: 13px;
  color: var(--color-muted);
}

.playlist-item .arrow {
  color: #c1ccd6;
  font-size: 15px;
  transition: color var(--transition), transform var(--transition);
}

.playlist-item:hover .arrow {
  color: var(--color-primary);
  transform: translateX(4px);
}

/* ===== News List ===== */
.news-panel {
  background: var(--color-card);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.news-item {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 18px 28px;
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition);
}

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

.news-item:hover {
  background: #f0f5fc;
}

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

.news-item .news-title {
  display: block;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-title);
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color var(--transition);
}

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

.news-item .news-excerpt {
  display: block;
  font-size: 14px;
  color: var(--color-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.news-item .news-side {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}

.news-item .news-cat {
  display: inline-block;
  background: rgba(0,224,164,0.12);
  color: #0d8b6f;
  font-size: 12px;
  font-weight: 600;
  padding: 3px 12px;
  border-radius: 20px;
  border: 1px solid rgba(0,224,164,0.25);
}

.news-item .news-date {
  font-size: 13px;
  color: var(--color-muted);
  font-variant-numeric: tabular-nums;
}

.news-empty {
  padding: 60px 20px;
  text-align: center;
  color: var(--color-muted);
}

.news-empty i {
  font-size: 40px;
  display: block;
  margin-bottom: 12px;
  color: #c8d2dc;
}

.news-empty p {
  font-size: 15px;
}

/* ===== FAQ ===== */
.faq-panel {
  background: var(--color-card);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

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

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

.accordion-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 28px;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-title);
  cursor: pointer;
  transition: color var(--transition);
}

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

.accordion-title .icon {
  flex-shrink: 0;
  font-size: 18px;
  color: var(--color-muted);
  transition: transform 0.3s ease, color var(--transition);
}

.accordion-title[aria-expanded="true"] {
  color: var(--color-primary);
}

.accordion-title[aria-expanded="true"] .icon {
  transform: rotate(45deg);
  color: var(--color-primary);
}

.accordion-content {
  color: var(--color-body);
  font-size: 15px;
  line-height: 1.8;
}

.accordion-content .content-inner {
  padding: 0 28px 24px;
}

/* ===== CTA ===== */
.cta-section {
  background: var(--color-dark);
  position: relative;
  overflow: hidden;
  padding: 80px 0;
  text-align: center;
}

.cta-section::before {
  content: '';
  position: absolute;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(0,224,164,0.16) 0%, rgba(0,224,164,0) 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.cta-section h2 {
  font-size: 32px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 14px;
  position: relative;
}

.cta-section p {
  color: #9babbc;
  font-size: 16px;
  max-width: 520px;
  margin: 0 auto 32px;
  position: relative;
}

.cta-section .btn-neon {
  position: relative;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--color-dark);
  border-top: 2px solid transparent;
  border-image: linear-gradient(90deg, var(--color-neon), rgba(0,224,164,0.05)) 1;
  padding: 48px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand .brand-logo {
  margin-bottom: 10px;
}

.footer-brand .footer-desc {
  font-size: 14px;
  color: #93a5b5;
  line-height: 1.7;
  max-width: 280px;
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 16px;
}

.footer-col ul {
  list-style: none;
}

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

.footer-col ul a {
  font-size: 14px;
  color: #93a5b5;
  transition: color var(--transition);
}

.footer-col ul a:hover {
  color: #ffffff;
}

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

.footer-bottom p {
  font-size: 13px;
  color: #6b7c8e;
}

.footer-bottom .beian {
  font-size: 13px;
  color: #6b7c8e;
}

/* ===== Responsive ===== */
@media (max-width: 1023px) {
  .site-nav {
    display: none;
  }

  .header-burger {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

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

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

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

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

@media (max-width: 639px) {
  body {
    padding-top: 58px;
  }

  .site-header .header-inner {
    height: 58px;
    padding: 0 16px;
  }

  .brand-logo .brand-name {
    font-size: 17px;
  }

  .brand-logo .brand-domain {
    display: none;
  }

  .hero {
    min-height: calc(100vh - 58px);
  }

  .hero h1 {
    font-size: 27px;
    line-height: 1.3;
  }

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

  .hero-actions {
    gap: 14px;
  }

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

  .section {
    padding: 48px 0;
  }

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

  .slide-card {
    flex: 0 0 170px;
    width: 170px;
  }

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

  .news-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    padding: 16px 20px;
  }

  .news-item .news-title {
    white-space: normal;
    -webkit-line-clamp: 2;
    display: -webkit-box;
    -webkit-box-orient: vertical;
  }

  .news-item .news-excerpt {
    white-space: normal;
    -webkit-line-clamp: 2;
    display: -webkit-box;
    -webkit-box-orient: vertical;
  }

  .news-item .news-side {
    width: 100%;
    justify-content: space-between;
  }

  .accordion-title {
    padding: 16px 18px;
    font-size: 15px;
  }

  .accordion-content .content-inner {
    padding: 0 18px 20px;
  }

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

  .cta-section h2 {
    font-size: 24px;
  }

  .cta-section .btn-primary {
    width: 100%;
  }
}

@media (max-width: 360px) {
  .hero h1 {
    font-size: 24px;
  }

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

/* roulang page: category1 */
:root {
      --primary: #1458a3;
      --primary-dark: #0e3f7a;
      --primary-deeper: #0a2f5c;
      --primary-light: #2e86de;
      --neon: #00e0a4;
      --bg: #f5f7fa;
      --card-bg: #ffffff;
      --dark: #0b1626;
      --title-color: #14283d;
      --text-color: #3c4b5a;
      --muted: #8a99a8;
      --border: #e8edf2;
      --error: #d93026;
      --radius-lg: 16px;
      --radius-md: 12px;
      --radius-sm: 8px;
      --shadow-card: 0 8px 24px rgba(16, 42, 67, 0.06);
      --shadow-hover: 0 12px 32px rgba(16, 42, 67, 0.12);
      --transition: 0.2s ease;
      --font-family: -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: var(--font-family);
      background: var(--bg);
      color: var(--text-color);
      font-size: 16px;
      line-height: 1.7;
      padding-top: 64px;
      -webkit-font-smoothing: antialiased;
    }

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

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

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

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

    input,
    textarea {
      font-family: inherit;
    }

    ul,
    ol {
      list-style: none;
    }

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

    .section {
      padding: 80px 0;
    }

    .section-header {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 20px;
      margin-bottom: 36px;
    }

    .section-title {
      font-size: 30px;
      font-weight: 700;
      color: var(--title-color);
      line-height: 1.3;
      position: relative;
      padding-left: 16px;
    }

    .section-title::before {
      content: "";
      position: absolute;
      left: 0;
      top: 8px;
      bottom: 8px;
      width: 4px;
      border-radius: 4px;
      background: linear-gradient(180deg, var(--neon), rgba(0, 224, 164, 0.1));
      box-shadow: 0 0 12px rgba(0, 224, 164, 0.4);
    }

    .section-more {
      font-size: 15px;
      font-weight: 600;
      color: var(--primary);
      white-space: nowrap;
      transition: color var(--transition);
    }

    .section-more i {
      margin-left: 4px;
      transition: transform var(--transition);
    }

    .section-more:hover {
      color: var(--primary-light);
    }

    .section-more:hover i {
      transform: translateX(4px);
    }

    /* ========== Header ========== */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 1000;
      height: 64px;
      background: var(--dark);
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
    }

    .header-inner {
      max-width: 1200px;
      height: 100%;
      margin: 0 auto;
      padding: 0 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
    }

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 8px;
      line-height: 1;
      flex-shrink: 0;
    }

    .brand-name {
      font-size: 20px;
      font-weight: 700;
      color: #fff;
      letter-spacing: 0.02em;
      text-shadow: 0 0 16px rgba(0, 224, 164, 0.35);
    }

    .brand-domain {
      font-size: 12px;
      color: rgba(255, 255, 255, 0.55);
      font-weight: 400;
      letter-spacing: 0.03em;
    }

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

    .site-nav .nav-link {
      position: relative;
      font-size: 15px;
      color: rgba(255, 255, 255, 0.85);
      padding: 20px 0;
      font-weight: 400;
      transition: color var(--transition), text-shadow var(--transition);
    }

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

    .site-nav .nav-link.active {
      color: var(--neon);
      font-weight: 500;
      text-shadow: 0 0 12px rgba(0, 224, 164, 0.45);
    }

    .site-nav .nav-link.active::after {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      bottom: 12px;
      height: 2px;
      border-radius: 2px;
      background: linear-gradient(90deg, var(--neon), rgba(0, 224, 164, 0));
      box-shadow: 0 0 8px rgba(0, 224, 164, 0.6);
    }

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

    .nav-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      height: 38px;
      padding: 0 22px;
      background: var(--primary);
      color: #fff;
      font-size: 14px;
      font-weight: 600;
      border-radius: var(--radius-sm);
      box-shadow: 0 0 12px rgba(0, 224, 164, 0.35);
      transition: all var(--transition);
    }

    .nav-cta:hover {
      background: var(--primary-light);
      color: #fff;
      box-shadow: 0 0 20px rgba(0, 224, 164, 0.5);
      transform: translateY(-1px);
    }

    .header-burger {
      display: none;
      width: 40px;
      height: 40px;
      color: #fff;
      font-size: 20px;
      border-radius: var(--radius-sm);
      align-items: center;
      justify-content: center;
      transition: background var(--transition);
    }

    .header-burger:hover {
      background: rgba(255, 255, 255, 0.08);
    }

    /* ========== Category Hero ========== */
    .cat-hero {
      position: relative;
      min-height: 320px;
      display: flex;
      align-items: center;
      background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      background-color: var(--dark);
      overflow: hidden;
    }

    .cat-hero .hero-mask {
      position: absolute;
      inset: 0;
      background: linear-gradient(90deg, rgba(11, 22, 38, 0.92) 30%, rgba(11, 22, 38, 0.55) 65%, rgba(11, 22, 38, 0.2));
      z-index: 1;
    }

    .cat-hero .hero-content {
      position: relative;
      z-index: 2;
      padding: 60px 0;
      max-width: 720px;
    }

    .cat-hero .hero-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(0, 224, 164, 0.15);
      border: 1px solid rgba(0, 224, 164, 0.3);
      color: var(--neon);
      font-size: 13px;
      font-weight: 600;
      padding: 6px 14px;
      border-radius: 999px;
      margin-bottom: 20px;
      letter-spacing: 0.04em;
    }

    .cat-hero h1 {
      font-size: 42px;
      font-weight: 700;
      color: #fff;
      line-height: 1.2;
      margin-bottom: 14px;
    }

    .cat-hero h1 .highlight {
      color: var(--neon);
      text-shadow: 0 0 18px rgba(0, 224, 164, 0.4);
    }

    .cat-hero .hero-subtitle {
      font-size: 16px;
      color: #c7d5e4;
      line-height: 1.7;
      margin-bottom: 28px;
      max-width: 560px;
    }

    .cat-hero .hero-stats {
      display: flex;
      gap: 32px;
      flex-wrap: wrap;
    }

    .cat-hero .stat-block {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .cat-hero .stat-block .stat-num {
      font-size: 26px;
      font-weight: 700;
      color: #fff;
      font-variant-numeric: tabular-nums;
    }

    .cat-hero .stat-block .stat-label {
      font-size: 13px;
      color: rgba(199, 213, 228, 0.8);
      max-width: 70px;
      line-height: 1.4;
    }

    /* ========== Rank Board ========== */
    .rank-section {
      background: var(--bg);
      padding: 80px 0 40px;
    }

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

    .rank-board {
      background: var(--card-bg);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-card);
      padding: 32px;
      border: 1px solid rgba(0, 0, 0, 0.02);
    }

    .board-title {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 20px;
      font-weight: 700;
      color: var(--title-color);
      margin-bottom: 24px;
    }

    .board-title i {
      width: 34px;
      height: 34px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: linear-gradient(135deg, var(--primary), var(--primary-light));
      color: #fff;
      border-radius: 10px;
      font-size: 15px;
    }

    .rank-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .rank-item {
      display: flex;
      align-items: center;
      gap: 14px;
      padding: 14px 16px;
      background: #f8fafc;
      border-radius: var(--radius-md);
      border: 1px solid transparent;
      transition: all var(--transition);
    }

    .rank-item:hover {
      background: #f0f5fc;
      border-color: rgba(20, 88, 163, 0.2);
      transform: translateX(4px);
    }

    .rank-no {
      width: 30px;
      font-size: 18px;
      font-weight: 700;
      color: var(--muted);
      font-variant-numeric: tabular-nums;
      text-align: center;
      flex-shrink: 0;
    }

    .rank-item:nth-child(1) .rank-no {
      color: #d4a017;
    }

    .rank-item:nth-child(2) .rank-no {
      color: #9aa5b1;
    }

    .rank-item:nth-child(3) .rank-no {
      color: #b87333;
    }

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

    .rank-info .rank-name {
      font-size: 15px;
      font-weight: 600;
      color: var(--title-color);
      margin-bottom: 4px;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .rank-info .rank-meta {
      font-size: 13px;
      color: var(--muted);
    }

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

    .heat-bar {
      width: 90px;
      height: 6px;
      background: #e8edf2;
      border-radius: 3px;
      overflow: hidden;
    }

    .heat-bar span {
      display: block;
      height: 100%;
      background: linear-gradient(90deg, var(--primary), var(--neon));
      border-radius: 3px;
    }

    .heat-num {
      font-size: 14px;
      font-weight: 700;
      color: var(--primary);
      font-variant-numeric: tabular-nums;
      min-width: 44px;
      text-align: right;
    }

    /* ========== Game Grid Cards ========== */
    .game-grid-section {
      padding: 60px 0 80px;
    }

    .game-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .game-card {
      background: var(--card-bg);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      border: 1px solid rgba(0, 0, 0, 0.02);
      transition: all var(--transition);
      display: flex;
      flex-direction: column;
    }

    .game-card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-4px);
      border-color: rgba(20, 88, 163, 0.25);
    }

    .card-cover {
      position: relative;
      aspect-ratio: 16 / 10;
      background: #eaf0f6;
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
    }

    .card-cover i {
      font-size: 36px;
      color: #b8c6d4;
    }

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

    .card-badge {
      position: absolute;
      top: 14px;
      left: 14px;
      background: linear-gradient(135deg, var(--neon), #00c48b);
      color: #fff;
      font-size: 12px;
      font-weight: 700;
      padding: 4px 12px;
      border-radius: 999px;
      box-shadow: 0 4px 14px rgba(0, 224, 164, 0.35);
      z-index: 2;
    }

    .card-body {
      padding: 20px;
      display: flex;
      flex-direction: column;
      flex: 1;
    }

    .card-title-row {
      display: flex;
      align-items: flex-start;
      justify-content: space-between;
      gap: 12px;
      margin-bottom: 8px;
    }

    .card-title-row h3 {
      font-size: 18px;
      font-weight: 600;
      color: var(--title-color);
      line-height: 1.4;
    }

    .card-score {
      display: inline-flex;
      align-items: center;
      gap: 4px;
      font-size: 13px;
      font-weight: 600;
      color: var(--primary);
      background: rgba(20, 88, 163, 0.08);
      padding: 4px 10px;
      border-radius: 999px;
      white-space: nowrap;
      font-variant-numeric: tabular-nums;
    }

    .card-score i {
      color: #f5b50a;
      font-size: 12px;
    }

    .card-tags {
      display: flex;
      gap: 8px;
      margin-bottom: 12px;
      flex-wrap: wrap;
    }

    .card-tags span {
      font-size: 12px;
      color: var(--muted);
      background: #f1f4f7;
      padding: 2px 10px;
      border-radius: 999px;
    }

    .card-desc {
      font-size: 13px;
      color: var(--muted);
      line-height: 1.6;
      margin-bottom: 16px;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
      flex: 1;
    }

    .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 {
      transition: transform var(--transition);
    }

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

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

    /* ========== Dual Collections ========== */
    .dual-section {
      padding: 40px 0 80px;
    }

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

    .collect-card {
      background: var(--card-bg);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-card);
      padding: 28px;
      border: 1px solid rgba(0, 0, 0, 0.02);
    }

    .collect-card .board-title {
      margin-bottom: 20px;
    }

    .collect-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .collect-item {
      display: flex;
      align-items: center;
      gap: 14px;
      padding: 12px 14px;
      background: #f8fafc;
      border-radius: var(--radius-md);
      transition: all var(--transition);
      border: 1px solid transparent;
    }

    .collect-item:hover {
      background: #f0f5fc;
      border-color: rgba(20, 88, 163, 0.15);
    }

    .collect-thumb {
      width: 64px;
      height: 64px;
      border-radius: var(--radius-sm);
      background: #eaf0f6;
      display: flex;
      align-items: center;
      justify-content: center;
      overflow: hidden;
      position: relative;
      flex-shrink: 0;
    }

    .collect-thumb i {
      font-size: 22px;
      color: #b8c6d4;
    }

    .collect-thumb img {
      position: absolute;
      inset: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

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

    .collect-info h4 {
      font-size: 15px;
      font-weight: 600;
      color: var(--title-color);
      margin-bottom: 4px;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .collect-info p {
      font-size: 13px;
      color: var(--muted);
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .collect-arrow {
      color: #c0cbd6;
      font-size: 16px;
      transition: all var(--transition);
      flex-shrink: 0;
    }

    .collect-item:hover .collect-arrow {
      color: var(--primary);
      transform: translateX(4px);
    }

    /* ========== Timeline / Launch ========== */
    .timeline-section {
      background: var(--dark);
      padding: 80px 0;
      position: relative;
      overflow: hidden;
    }

    .timeline-section::before {
      content: "";
      position: absolute;
      top: -80px;
      right: -80px;
      width: 320px;
      height: 320px;
      background: radial-gradient(circle, rgba(0, 224, 164, 0.12), transparent 70%);
      pointer-events: none;
    }

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

    .timeline-section .section-title::before {
      background: linear-gradient(180deg, var(--neon), rgba(0, 224, 164, 0.1));
    }

    .timeline-section .section-more {
      color: rgba(255, 255, 255, 0.7);
    }

    .timeline-section .section-more:hover {
      color: var(--neon);
    }

    .timeline {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-top: 48px;
    }

    .timeline-step {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.06);
      border-radius: var(--radius-lg);
      padding: 28px;
      position: relative;
      transition: all var(--transition);
    }

    .timeline-step:hover {
      background: rgba(255, 255, 255, 0.07);
      border-color: rgba(0, 224, 164, 0.3);
      transform: translateY(-4px);
    }

    .timeline-step .step-status {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 12px;
      font-weight: 600;
      padding: 4px 12px;
      border-radius: 999px;
      margin-bottom: 16px;
    }

    .step-status.live {
      background: rgba(0, 224, 164, 0.15);
      color: var(--neon);
      border: 1px solid rgba(0, 224, 164, 0.3);
    }

    .step-status.coming {
      background: rgba(46, 134, 222, 0.12);
      color: var(--primary-light);
      border: 1px solid rgba(46, 134, 222, 0.3);
    }

    .step-status.wait {
      background: rgba(255, 255, 255, 0.06);
      color: rgba(255, 255, 255, 0.55);
      border: 1px solid rgba(255, 255, 255, 0.08);
    }

    .timeline-step .step-num {
      font-size: 34px;
      font-weight: 700;
      color: rgba(255, 255, 255, 0.1);
      font-variant-numeric: tabular-nums;
      position: absolute;
      right: 20px;
      top: 16px;
    }

    .timeline-step h3 {
      font-size: 18px;
      font-weight: 600;
      color: #fff;
      margin-bottom: 8px;
    }

    .timeline-step p {
      font-size: 14px;
      color: rgba(255, 255, 255, 0.6);
      line-height: 1.6;
    }

    /* ========== FAQ ========== */
    .faq-section {
      padding: 80px 0;
    }

    .faq-wrap {
      max-width: 860px;
      margin: 0 auto;
      background: var(--card-bg);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-card);
      overflow: hidden;
      border: 1px solid rgba(0, 0, 0, 0.02);
    }

    .faq-item {
      border-bottom: 1px solid var(--border);
      transition: background var(--transition);
    }

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

    .faq-item.active {
      background: #f8fafc;
    }

    .faq-q {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      padding: 22px 28px;
      cursor: pointer;
      transition: all var(--transition);
    }

    .faq-q:hover {
      background: #f0f5fc;
    }

    .faq-q .faq-question {
      font-size: 16px;
      font-weight: 600;
      color: var(--title-color);
      line-height: 1.5;
      transition: color var(--transition);
    }

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

    .faq-icon {
      position: relative;
      width: 32px;
      height: 32px;
      flex-shrink: 0;
      border-radius: 50%;
      background: #eef2f6;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: all var(--transition);
    }

    .faq-icon::before,
    .faq-icon::after {
      content: "";
      position: absolute;
      background: var(--primary);
      border-radius: 2px;
      transition: all var(--transition);
    }

    .faq-icon::before {
      width: 12px;
      height: 2px;
    }

    .faq-icon::after {
      width: 2px;
      height: 12px;
    }

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

    .faq-item.active .faq-icon::before,
    .faq-item.active .faq-icon::after {
      background: #fff;
    }

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

    .faq-a {
      padding: 0 28px 22px;
      font-size: 15px;
      line-height: 1.7;
      color: var(--text-color);
    }

    /* ========== CTA ========== */
    .cta-section {
      background: var(--dark);
      padding: 72px 0;
      text-align: center;
      position: relative;
      overflow: hidden;
    }

    .cta-section::before {
      content: "";
      position: absolute;
      left: 50%;
      top: 50%;
      transform: translate(-50%, -50%);
      width: 420px;
      height: 420px;
      background: radial-gradient(circle, rgba(0, 224, 164, 0.1), transparent 70%);
      pointer-events: none;
    }

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

    .cta-inner h2 {
      font-size: 30px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 14px;
      line-height: 1.3;
    }

    .cta-inner p {
      font-size: 15px;
      color: rgba(255, 255, 255, 0.6);
      margin-bottom: 32px;
      max-width: 560px;
      margin-left: auto;
      margin-right: auto;
    }

    .cta-btn {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      height: 48px;
      padding: 0 36px;
      background: var(--primary);
      color: #fff;
      font-size: 16px;
      font-weight: 600;
      border-radius: var(--radius-sm);
      box-shadow: 0 0 16px rgba(0, 224, 164, 0.45);
      transition: all var(--transition);
    }

    .cta-btn:hover {
      background: var(--primary-light);
      color: #fff;
      box-shadow: 0 0 28px rgba(0, 224, 164, 0.65);
      transform: translateY(-2px);
    }

    /* ========== Pagination ========== */
    .pagination-bar {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      margin-top: 40px;
    }

    .page-btn {
      min-width: 40px;
      height: 40px;
      padding: 0 14px;
      background: var(--card-bg);
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      font-size: 14px;
      font-weight: 600;
      color: var(--text-color);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      transition: all var(--transition);
      cursor: pointer;
    }

    .page-btn:hover {
      border-color: var(--primary);
      color: var(--primary);
    }

    .page-btn.active {
      background: var(--primary);
      border-color: var(--primary);
      color: #fff;
      box-shadow: 0 4px 14px rgba(20, 88, 163, 0.3);
    }

    .page-btn.disabled {
      color: #c0cbd6;
      cursor: not-allowed;
      pointer-events: none;
    }

    /* ========== Footer ========== */
    .site-footer {
      background: var(--dark);
      padding-top: 48px;
      border-top: 2px solid var(--neon);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.6fr 1fr 1fr 1fr;
      gap: 40px;
      padding-bottom: 40px;
    }

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

    .footer-brand .footer-desc {
      font-size: 14px;
      color: rgba(255, 255, 255, 0.55);
      line-height: 1.7;
      margin-top: 12px;
      max-width: 300px;
    }

    .footer-col h4 {
      font-size: 16px;
      font-weight: 600;
      color: #fff;
      margin-bottom: 18px;
      position: relative;
      padding-bottom: 10px;
    }

    .footer-col h4::after {
      content: "";
      position: absolute;
      left: 0;
      bottom: 0;
      width: 24px;
      height: 2px;
      background: var(--neon);
      border-radius: 2px;
      box-shadow: 0 0 8px rgba(0, 224, 164, 0.5);
    }

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

    .footer-col ul a {
      font-size: 14px;
      color: #93a5b5;
      transition: all var(--transition);
    }

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

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.07);
      padding: 20px 0;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      flex-wrap: wrap;
    }

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

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

    /* ========== Responsive ========== */
    @media (max-width: 1023px) {
      .site-nav {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--dark);
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 0 24px 16px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        display: none;
        max-height: calc(100vh - 64px);
        overflow-y: auto;
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
      }

      .site-nav.nav-open {
        display: flex;
      }

      .site-nav .nav-link {
        padding: 14px 0;
        font-size: 16px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
      }

      .site-nav .nav-link.active::after {
        bottom: 6px;
      }

      .header-burger {
        display: flex;
      }

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

      .rank-grid,
      .dual-grid {
        grid-template-columns: 1fr;
      }

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

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

      .footer-brand {
        grid-column: 1 / -1;
      }
    }

    @media (max-width: 639px) {
      body {
        padding-top: 60px;
      }

      .site-header {
        height: 60px;
      }

      .header-inner {
        padding: 0 16px;
      }

      .brand-name {
        font-size: 18px;
      }

      .brand-domain {
        display: none;
      }

      .nav-cta {
        display: none;
      }

      .container {
        padding: 0 16px;
      }

      .section {
        padding: 48px 0;
      }

      .section-header {
        margin-bottom: 24px;
      }

      .section-title {
        font-size: 24px;
        padding-left: 14px;
      }

      .cat-hero {
        min-height: 280px;
      }

      .cat-hero .hero-content {
        padding: 40px 0;
      }

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

      .cat-hero h1 .highlight {
        display: block;
      }

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

      .cat-hero .hero-stats {
        gap: 20px;
      }

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

      .cat-hero .stat-block .stat-label {
        font-size: 12px;
      }

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

      .rank-board,
      .collect-card {
        padding: 20px;
      }

      .rank-heat {
        display: none;
      }

      .timeline-step {
        padding: 22px;
      }

      .faq-q {
        padding: 18px 18px;
      }

      .faq-a {
        padding: 0 18px 18px;
      }

      .cta-section {
        padding: 52px 0;
      }

      .cta-inner h2 {
        font-size: 24px;
      }

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

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

      .footer-brand {
        grid-column: auto;
      }

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

    @media (max-width: 520px) {
      .site-nav .nav-link {
        font-size: 15px;
      }

      .hero-stats {
        flex-direction: column;
        gap: 12px;
      }
    }

/* roulang page: article */
:root {
  --bg: #f5f7fa;
  --card-bg: #ffffff;
  --primary: #1458a3;
  --primary-dark: #0e3f7a;
  --primary-active: #0a2f5c;
  --accent: #2e86de;
  --neon: #00e0a4;
  --dark: #0b1626;
  --heading: #14283d;
  --text: #3c4b5a;
  --muted: #8a99a8;
  --border: #e8edf2;
  --input-border: #d4dce3;
  --error: #d93026;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow: 0 8px 24px rgba(16,42,67,0.06);
  --shadow-hover: 0 12px 32px rgba(16,42,67,0.12);
  --transition: 0.2s ease;
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 15px;
  padding-top: 64px;
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover {
  color: var(--accent);
}
ul, ol {
  list-style: none;
}
button, input, textarea {
  font-family: inherit;
  font-size: inherit;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Header / Nav ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 64px;
  background: var(--dark);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  z-index: 1000;
}
.header-inner {
  max-width: 1200px;
  height: 100%;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 32px;
}
.brand-logo {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  white-space: nowrap;
}
.brand-name {
  font-size: 21px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.6px;
  transition: color var(--transition);
}
.brand-logo:hover .brand-name {
  color: var(--neon);
}
.brand-domain {
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.3px;
}
.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-left: auto;
}
.nav-link {
  position: relative;
  display: inline-block;
  font-size: 15px;
  font-weight: 500;
  color: #f0f4f8;
  padding: 20px 0;
  line-height: 1;
  transition: color var(--transition);
}
.nav-link:hover {
  color: var(--neon);
}
.nav-link.active {
  color: var(--neon);
  text-shadow: 0 0 10px rgba(0,224,164,0.25);
}
.nav-link.active::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--neon), transparent);
  box-shadow: 0 0 8px rgba(0,224,164,0.6);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}
.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  padding: 0 22px;
  background: var(--primary);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  box-shadow: 0 0 12px rgba(0,224,164,0.35);
  transition: all var(--transition);
  white-space: nowrap;
}
.nav-cta:hover {
  background: var(--primary-dark);
  box-shadow: 0 0 20px rgba(0,224,164,0.55);
  color: #fff;
  transform: translateY(-1px);
}
.nav-cta:active {
  background: var(--primary-active);
  transform: translateY(0);
}
.header-burger {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-sm);
  color: #fff;
  font-size: 17px;
  cursor: pointer;
  transition: all var(--transition);
}
.header-burger:hover {
  border-color: var(--neon);
  color: var(--neon);
}

/* ===== Breadcrumb ===== */
.breadcrumb {
  max-width: 960px;
  margin: 0 auto;
  padding: 28px 0 4px;
  font-size: 13px;
  color: var(--muted);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
}
.breadcrumb a {
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: color var(--transition);
}
.breadcrumb a:hover {
  color: var(--primary);
}
.breadcrumb .sep {
  margin: 0 10px;
  color: #c5cfd8;
}
.breadcrumb .crumb-category {
  color: var(--text);
}
.breadcrumb .current {
  color: var(--muted);
  max-width: 360px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  display: inline-block;
  vertical-align: bottom;
}

/* ===== Article Detail ===== */
.article-page {
  padding: 0 0 24px;
}
.article-detail {
  max-width: 960px;
  margin: 16px auto 0;
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 48px 56px;
}
.article-title {
  font-size: 36px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--heading);
  margin-bottom: 20px;
  letter-spacing: 0.3px;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  color: var(--muted);
}
.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.meta-item i {
  color: var(--accent);
  font-size: 13px;
}
.article-content {
  max-width: 760px;
  margin: 0 auto;
  padding-top: 32px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--text);
}
.article-content h2 {
  font-size: 26px;
  color: var(--heading);
  margin: 36px 0 16px;
  position: relative;
  padding-left: 16px;
  line-height: 1.4;
}
.article-content h2::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 4px;
  height: 22px;
  border-radius: 3px;
  background: linear-gradient(180deg, var(--neon), var(--primary));
}
.article-content h3 {
  font-size: 20px;
  color: var(--heading);
  margin: 24px 0 12px;
  line-height: 1.4;
}
.article-content h4 {
  font-size: 17px;
  color: var(--heading);
  margin: 20px 0 10px;
}
.article-content p {
  margin-bottom: 16px;
}
.article-content a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.article-content a:hover {
  color: var(--accent);
}
.article-content img {
  border-radius: var(--radius-md);
  margin: 22px 0;
  box-shadow: var(--shadow);
}
.article-content ul,
.article-content ol {
  margin: 0 0 16px 22px;
}
.article-content li {
  margin-bottom: 8px;
  line-height: 1.75;
}
.article-content ul li {
  list-style: disc;
}
.article-content ol li {
  list-style: decimal;
}
.article-content blockquote {
  border-left: 4px solid var(--neon);
  background: #f0fbf7;
  padding: 18px 22px;
  border-radius: 0 10px 10px 0;
  margin: 22px 0;
  color: var(--heading);
  font-size: 15px;
}
.article-content pre {
  background: var(--dark);
  color: #c7d5e4;
  padding: 20px;
  border-radius: 10px;
  overflow-x: auto;
  margin: 20px 0;
  font-size: 14px;
  line-height: 1.7;
}
.article-content code {
  background: #eef2f6;
  padding: 2px 7px;
  border-radius: 4px;
  font-size: 14px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
.article-content pre code {
  background: transparent;
  padding: 0;
  color: inherit;
}
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 14px;
}
.article-content th,
.article-content td {
  border: 1px solid var(--border);
  padding: 10px 14px;
  text-align: left;
}
.article-content th {
  background: #f0f5fc;
  color: var(--heading);
  font-weight: 600;
}

/* ===== Article Foot ===== */
.article-foot {
  max-width: 760px;
  margin: 32px auto 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
}
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tag {
  display: inline-flex;
  align-items: center;
  padding: 6px 16px;
  background: #f0f5fc;
  color: var(--primary);
  font-size: 13px;
  font-weight: 500;
  border-radius: 20px;
  transition: all var(--transition);
}
.tag:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-1px);
}
.article-share {
  display: flex;
  align-items: center;
  gap: 10px;
}
.share-label {
  font-size: 13px;
  color: var(--muted);
}
.share-btn {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: #f0f5fc;
  color: var(--primary);
  font-size: 14px;
  transition: all var(--transition);
}
.share-btn:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(20,88,163,0.3);
}

/* ===== Related Section ===== */
.related-section {
  padding: 56px 0 24px;
}
.related-section .container {
  max-width: 1200px;
}
.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
}
.section-head h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--heading);
  line-height: 1.3;
  position: relative;
  padding-bottom: 12px;
}
.section-head h2::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 48px;
  height: 2px;
  background: linear-gradient(90deg, var(--neon), transparent);
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.related-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid transparent;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}
.related-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(20,88,163,0.4);
}
.card-cover {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: #e8edf2;
}
.card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}
.related-card:hover .card-cover img {
  transform: scale(1.04);
}
.card-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  background: linear-gradient(135deg, var(--neon), #00b389);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  border-radius: 20px;
  box-shadow: 0 4px 12px rgba(0,224,164,0.35);
}
.card-body {
  padding: 20px 20px 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}
.card-body h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--heading);
  line-height: 1.45;
  margin: 0;
}
.card-body p {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin: 0;
}
.card-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
}
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  transition: color var(--transition);
}
.card-link i {
  transition: margin-left var(--transition);
}
.related-card:hover .card-link {
  color: var(--primary-dark);
}
.related-card:hover .card-link i {
  margin-left: 8px;
}

/* ===== Article Back ===== */
.article-back {
  padding: 32px 0 72px;
}
.article-back .back-links {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}
.article-back a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 28px;
  border: 1px solid var(--primary);
  color: var(--primary);
  border-radius: var(--radius-sm);
  background: transparent;
  font-size: 14px;
  font-weight: 600;
  transition: all var(--transition);
}
.article-back a:hover {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 6px 18px rgba(20,88,163,0.3);
  transform: translateY(-2px);
}
.article-back a i {
  font-size: 13px;
}

/* ===== Not Found ===== */
.not-found {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 24px;
}
.not-found-inner {
  text-align: center;
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 56px 48px;
  max-width: 480px;
  width: 100%;
}
.not-found-icon {
  font-size: 52px;
  color: #c5cfd8;
  margin-bottom: 16px;
}
.not-found h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--heading);
  margin-bottom: 10px;
}
.not-found p {
  color: var(--muted);
  margin-bottom: 24px;
  font-size: 14px;
}
.not-found .btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary);
  color: #fff;
  padding: 11px 28px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  box-shadow: 0 0 14px rgba(0,224,164,0.3);
  transition: all var(--transition);
}
.not-found .btn-primary:hover {
  background: var(--primary-dark);
  box-shadow: 0 0 22px rgba(0,224,164,0.5);
  color: #fff;
  transform: translateY(-2px);
}

/* ===== Footer ===== */
.site-footer {
  background: var(--dark);
  border-top: 2px solid var(--neon);
  padding: 48px 0 0;
  color: #93a5b5;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}
.footer-brand .brand-logo {
  margin-bottom: 14px;
}
.footer-desc {
  font-size: 13px;
  line-height: 1.75;
  margin-top: 12px;
  color: #7e90a0;
  max-width: 280px;
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: #eef2f6;
  margin-bottom: 16px;
  letter-spacing: 0.4px;
}
.footer-col li {
  margin-bottom: 10px;
}
.footer-col a {
  font-size: 13px;
  color: #93a5b5;
  transition: color var(--transition);
}
.footer-col a:hover {
  color: #fff;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: #7e90a0;
  flex-wrap: wrap;
  gap: 8px;
}
.beian {
  color: #5f7285;
}

/* ===== Responsive ===== */
@media (max-width: 1023px) {
  .site-nav {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--dark);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    margin-left: 0;
    padding: 0 24px;
    display: none;
    max-height: calc(100vh - 64px);
    overflow-y: auto;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    box-shadow: 0 20px 40px rgba(0,0,0,0.35);
  }
  .site-nav.open {
    display: flex;
  }
  .nav-link {
    display: block;
    padding: 15px 0;
    border-bottom: 1px solid rgba(255,255,255,0.06);
  }
  .nav-link.active::after {
    bottom: 0;
    left: 0;
    width: 100%;
  }
  .header-actions {
    margin-left: auto;
  }
  .nav-cta {
    display: none;
  }
  .header-burger {
    display: inline-flex;
  }
  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }
  .article-detail {
    padding: 36px 32px;
  }
  .article-title {
    font-size: 30px;
  }
  .breadcrumb {
    padding-left: 12px;
    padding-right: 12px;
  }
}
@media (max-width: 639px) {
  body {
    font-size: 14px;
  }
  .header-inner {
    padding: 0 16px;
    gap: 16px;
  }
  .related-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  .article-detail {
    padding: 24px 20px;
    border-radius: 12px;
  }
  .article-title {
    font-size: 24px;
  }
  .article-meta {
    flex-direction: column;
    gap: 8px;
  }
  .article-foot {
    flex-direction: column;
    align-items: flex-start;
  }
  .article-content {
    font-size: 15px;
    line-height: 1.8;
  }
  .article-content h2 {
    font-size: 22px;
  }
  .section-head h2 {
    font-size: 23px;
  }
  .article-back .back-links {
    flex-direction: column;
    align-items: stretch;
  }
  .article-back a {
    justify-content: center;
  }
  .breadcrumb .current {
    max-width: 160px;
  }
  .not-found-inner {
    padding: 40px 24px;
  }
  .not-found h2 {
    font-size: 24px;
  }
}

/* roulang page: category2 */
:root {
            --bg-body: #f5f7fa;
            --bg-card: #ffffff;
            --primary: #1458a3;
            --primary-hover: #0e3f7a;
            --primary-active: #0a2f5c;
            --accent: #2e86de;
            --neon: #00e0a4;
            --dark: #0b1626;
            --text-title: #14283d;
            --text-body: #3c4b5a;
            --text-weak: #8a99a8;
            --border: #e8edf2;
            --input-border: #d4dce3;
            --danger: #d93026;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-card: 0 8px 24px rgba(16, 42, 67, 0.06);
            --shadow-card-hover: 0 12px 32px rgba(16, 42, 67, 0.12);
            --transition: 0.2s ease;
            --font-cn: -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-cn);
            background: var(--bg-body);
            color: var(--text-body);
            line-height: 1.7;
            font-size: 16px;
            padding-top: 64px;
            -webkit-font-smoothing: antialiased;
        }

        body.no-scroll {
            overflow: hidden;
        }

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

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

        a:hover {
            color: var(--accent);
        }

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

        ul {
            list-style: none;
        }

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

        .section {
            padding: 80px 0;
        }

        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 20px;
            margin-bottom: 36px;
        }

        .section-head .line {
            width: 40px;
            height: 2px;
            background: linear-gradient(90deg, var(--neon), rgba(0, 224, 164, 0.2));
            border-radius: 2px;
            margin-bottom: 6px;
        }

        .section-head h2 {
            font-size: 30px;
            font-weight: 700;
            color: var(--text-title);
            line-height: 1.3;
            letter-spacing: -0.02em;
        }

        .section-head .more-link {
            font-size: 15px;
            font-weight: 600;
            color: var(--primary);
            white-space: nowrap;
        }

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

        .section-head .more-link:hover i {
            transform: translateX(4px);
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 64px;
            background: var(--dark);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(11, 22, 38, 0.3);
        }

        .header-inner {
            max-width: 1280px;
            height: 100%;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }

        .brand-logo {
            display: inline-flex;
            align-items: baseline;
            gap: 10px;
            flex-shrink: 0;
            line-height: 1;
        }

        .brand-logo .brand-name {
            font-size: 22px;
            font-weight: 800;
            color: #ffffff;
            letter-spacing: 0.02em;
            text-shadow: 0 0 12px rgba(0, 224, 164, 0.35);
        }

        .brand-logo .brand-domain {
            font-size: 12px;
            font-weight: 400;
            color: rgba(255, 255, 255, 0.45);
            letter-spacing: 0.02em;
        }

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

        .site-nav .nav-link {
            position: relative;
            display: inline-block;
            padding: 20px 0 18px;
            font-size: 15px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.85);
            line-height: 24px;
            transition: color var(--transition), text-shadow var(--transition);
        }

        .site-nav .nav-link::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 100%;
            height: 2px;
            background: linear-gradient(90deg, var(--neon), rgba(0, 224, 164, 0.1));
            border-radius: 2px;
            opacity: 0;
            transform: scaleX(0.4);
            transition: opacity var(--transition), transform var(--transition);
        }

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

        .site-nav .nav-link.active {
            color: var(--neon);
            text-shadow: 0 0 14px rgba(0, 224, 164, 0.45);
        }

        .site-nav .nav-link.active::after {
            opacity: 1;
            transform: scaleX(1);
        }

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

        .nav-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 38px;
            padding: 0 22px;
            background: var(--primary);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            box-shadow: 0 0 12px rgba(0, 224, 164, 0.45);
            transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
        }

        .nav-cta:hover {
            background: var(--primary-hover);
            color: #fff;
            box-shadow: 0 0 20px rgba(0, 224, 164, 0.65);
            transform: translateY(-1px);
        }

        .nav-cta:active {
            background: var(--primary-active);
            transform: translateY(0);
        }

        .header-burger {
            display: none;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 8px;
            transition: border-color var(--transition), color var(--transition);
        }

        .header-burger:hover {
            border-color: var(--neon);
            color: var(--neon);
        }

        /* ===== Page Banner ===== */
        .page-banner {
            position: relative;
            min-height: 300px;
            background: var(--dark) url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(11, 22, 38, 0.92) 20%, rgba(11, 22, 38, 0.65) 60%, rgba(11, 22, 38, 0.4) 100%);
        }

        .page-banner .banner-inner {
            position: relative;
            z-index: 2;
            padding: 64px 0;
        }

        .page-banner .banner-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            background: rgba(0, 224, 164, 0.12);
            border: 1px solid rgba(0, 224, 164, 0.3);
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            color: var(--neon);
            margin-bottom: 20px;
            letter-spacing: 0.04em;
        }

        .page-banner .banner-tag i {
            font-size: 12px;
        }

        .page-banner h1 {
            font-size: 42px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            letter-spacing: -0.02em;
            margin-bottom: 16px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.25);
        }

        .page-banner h1 .highlight {
            color: var(--neon);
            text-shadow: 0 0 18px rgba(0, 224, 164, 0.4);
        }

        .page-banner .banner-desc {
            font-size: 17px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.82);
            max-width: 640px;
        }

        .page-banner .banner-meta {
            display: flex;
            gap: 24px;
            margin-top: 24px;
        }

        .page-banner .banner-meta .meta-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
        }

        .page-banner .banner-meta .meta-item i {
            color: var(--neon);
            font-size: 13px;
        }

        /* ===== Benefit Cards ===== */
        .benefit-grid {
            background: var(--bg-body);
        }

        .benefit-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .benefit-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid transparent;
            box-shadow: var(--shadow-card);
            transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
        }

        .benefit-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: rgba(20, 88, 163, 0.4);
        }

        .benefit-card .card-cover {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
        }

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

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

        .benefit-card .card-cover .cover-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 22, 38, 0.05) 40%, rgba(11, 22, 38, 0.35) 100%);
            pointer-events: none;
        }

        .benefit-card .card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            z-index: 2;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 12px;
            background: linear-gradient(135deg, #00e0a4, #00b981);
            color: #0b1626;
            font-size: 12px;
            font-weight: 700;
            border-radius: 999px;
            box-shadow: 0 4px 12px rgba(0, 224, 164, 0.35);
        }

        .benefit-card .card-tag i {
            font-size: 10px;
        }

        .benefit-card .card-body {
            padding: 20px;
        }

        .benefit-card .card-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-title);
            line-height: 1.4;
            margin-bottom: 8px;
        }

        .benefit-card .card-body .card-summary {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-weak);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 16px;
        }

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

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

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

        .benefit-card .card-footer .card-detail:hover {
            color: var(--accent);
        }

        .benefit-card .card-footer .card-detail:hover i {
            transform: translateX(4px);
        }

        .benefit-card .card-footer .card-status {
            font-size: 12px;
            font-weight: 600;
            color: var(--neon);
            background: rgba(0, 224, 164, 0.1);
            padding: 3px 10px;
            border-radius: 999px;
        }

        /* ===== Steps Section ===== */
        .steps-section {
            background: #ffffff;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .steps-list {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
        }

        .step-card {
            position: relative;
            padding: 32px 24px 28px;
            background: var(--bg-body);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            text-align: center;
            transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
        }

        .step-card:hover {
            border-color: rgba(0, 224, 164, 0.5);
            box-shadow: 0 8px 28px rgba(16, 42, 67, 0.08);
            transform: translateY(-4px);
        }

        .step-card .step-num {
            width: 48px;
            height: 48px;
            margin: 0 auto 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 800;
            color: var(--primary);
            background: rgba(20, 88, 163, 0.08);
            border-radius: 14px;
            border: 1px solid rgba(20, 88, 163, 0.15);
            font-variant-numeric: tabular-nums;
        }

        .step-card .step-arrow {
            position: absolute;
            top: 50%;
            right: -18px;
            transform: translateY(-50%);
            color: #c3cdd9;
            font-size: 16px;
            z-index: 2;
        }

        .step-card h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-title);
            margin-bottom: 8px;
        }

        .step-card p {
            font-size: 13px;
            color: var(--text-weak);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== Stats / Trust ===== */
        .stats-section {
            background: var(--dark);
            position: relative;
            overflow: hidden;
        }

        .stats-section::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -80px;
            width: 360px;
            height: 360px;
            background: radial-gradient(circle, rgba(0, 224, 164, 0.12) 0%, transparent 65%);
            pointer-events: none;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            position: relative;
            z-index: 2;
        }

        .stat-item {
            text-align: center;
            padding: 24px 16px;
        }

        .stat-item .stat-icon {
            font-size: 26px;
            color: var(--neon);
            margin-bottom: 12px;
        }

        .stat-item .stat-number {
            font-size: 32px;
            font-weight: 800;
            color: #ffffff;
            line-height: 1.2;
            font-variant-numeric: tabular-nums;
            letter-spacing: -0.02em;
        }

        .stat-item .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            margin-top: 6px;
        }

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

        .faq-container {
            max-width: 860px;
            margin: 0 auto;
        }

        .accordion {
            background: transparent;
            border-radius: var(--radius-lg);
        }

        .accordion-item {
            background: #ffffff;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 0;
            transition: border-color var(--transition), box-shadow var(--transition);
            margin-bottom: 16px;
        }

        .accordion-item:hover {
            border-color: rgba(20, 88, 163, 0.25);
            box-shadow: 0 4px 16px rgba(16, 42, 67, 0.06);
        }

        .accordion-item .accordion-title {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-title);
            background: none;
            border: none;
            cursor: pointer;
            text-align: left;
            width: 100%;
            line-height: 1.5;
            border-radius: var(--radius-md);
        }

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

        .accordion-item .accordion-title .icon-wrap {
            flex-shrink: 0;
            width: 26px;
            height: 26px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(20, 88, 163, 0.08);
            color: var(--primary);
            font-size: 14px;
            transition: transform var(--transition), background var(--transition), color var(--transition);
        }

        .accordion-item.is-active .accordion-title {
            color: var(--primary);
        }

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

        .accordion-item .accordion-content {
            padding: 0 24px 20px;
            font-size: 15px;
            line-height: 1.75;
            color: var(--text-body);
        }

        .accordion-item .accordion-content .content-inner {
            border-top: 1px solid var(--border);
            padding-top: 16px;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            background: var(--dark);
            padding: 88px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 560px;
            height: 560px;
            background: radial-gradient(circle, rgba(0, 224, 164, 0.08) 0%, transparent 65%);
            pointer-events: none;
        }

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

        .cta-section h2 {
            font-size: 32px;
            font-weight: 800;
            color: #ffffff;
            line-height: 1.3;
            margin-bottom: 14px;
        }

        .cta-section p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 30px;
        }

        .cta-section .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            height: 48px;
            padding: 0 36px;
            background: var(--primary);
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            border-radius: 10px;
            box-shadow: 0 0 12px rgba(0, 224, 164, 0.5);
            transition: background var(--transition), box-shadow var(--transition), transform var(--transition);
        }

        .cta-section .cta-btn:hover {
            background: var(--primary-hover);
            color: #fff;
            box-shadow: 0 0 22px rgba(0, 224, 164, 0.75);
            transform: translateY(-2px);
        }

        .cta-section .cta-btn:active {
            background: var(--primary-active);
            transform: translateY(0);
        }

        .cta-section .cta-btn i {
            font-size: 13px;
        }

        /* ===== Pagination ===== */
        .pagination-wrap {
            display: flex;
            justify-content: center;
            margin-top: 40px;
        }

        .pagination-wrap ul {
            display: flex;
            gap: 8px;
        }

        .pagination-wrap li a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 40px;
            height: 40px;
            padding: 0 14px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 10px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-body);
            transition: all var(--transition);
        }

        .pagination-wrap li a:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        .pagination-wrap li.current a {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(20, 88, 163, 0.3);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--dark);
            border-top: 2px solid rgba(0, 224, 164, 0.6);
            padding-top: 56px;
        }

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

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

        .footer-desc {
            font-size: 14px;
            line-height: 1.75;
            color: rgba(255, 255, 255, 0.55);
            max-width: 300px;
            margin-bottom: 0;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 16px;
        }

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

        .footer-col ul li a {
            font-size: 14px;
            color: #93a5b5;
            transition: color var(--transition);
        }

        .footer-col ul li a:hover {
            color: #ffffff;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-bottom p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
            margin: 0;
        }

        .footer-bottom .beian {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.3);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1023px) {
            .benefit-cards {
                grid-template-columns: repeat(2, 1fr);
            }

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

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

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

            .footer-brand {
                grid-column: span 2;
            }

            .site-nav {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: var(--dark);
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                padding: 0 24px;
                display: none;
                border-bottom: 1px solid rgba(255, 255, 255, 0.08);
                box-shadow: 0 20px 40px rgba(11, 22, 38, 0.5);
                max-height: calc(100vh - 64px);
                overflow-y: auto;
            }

            .site-nav.open {
                display: flex;
            }

            .site-nav .nav-link {
                padding: 15px 0;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
                font-size: 16px;
            }

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

            .site-nav .nav-link.active {
                color: var(--neon);
                text-shadow: 0 0 12px rgba(0, 224, 164, 0.4);
            }

            .header-burger {
                display: inline-flex;
            }

            .page-banner h1 {
                font-size: 34px;
            }

            .page-banner .banner-desc {
                font-size: 16px;
            }
        }

        @media (max-width: 639px) {
            body {
                padding-top: 60px;
            }

            .site-header {
                height: 60px;
            }

            .header-inner {
                padding: 0 16px;
            }

            .brand-logo .brand-name {
                font-size: 19px;
            }

            .brand-logo .brand-domain {
                display: none;
            }

            .nav-cta {
                padding: 0 16px;
                font-size: 13px;
                height: 36px;
            }

            .section {
                padding: 52px 0;
            }

            .section-head {
                margin-bottom: 24px;
            }

            .section-head h2 {
                font-size: 24px;
            }

            .page-banner {
                min-height: 260px;
            }

            .page-banner .banner-inner {
                padding: 48px 0;
            }

            .page-banner h1 {
                font-size: 26px;
            }

            .page-banner .banner-desc {
                font-size: 14px;
                line-height: 1.7;
            }

            .page-banner .banner-meta {
                flex-direction: column;
                gap: 8px;
                margin-top: 16px;
            }

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

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

            .step-card .step-arrow {
                display: none;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .stat-item .stat-number {
                font-size: 24px;
            }

            .stat-item .stat-label {
                font-size: 12px;
            }

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

            .footer-brand {
                grid-column: span 1;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }

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

            .cta-section h2 {
                font-size: 24px;
            }

            .cta-section p {
                font-size: 14px;
            }

            .cta-section .cta-btn {
                width: 100%;
                justify-content: center;
                padding: 0 20px;
            }

            .accordion-item .accordion-title {
                padding: 16px 18px;
                font-size: 15px;
            }

            .accordion-item .accordion-content {
                padding: 0 18px 16px;
                font-size: 14px;
            }
        }

        @media (max-width: 400px) {
            .header-actions {
                gap: 10px;
            }

            .nav-cta {
                display: none;
            }

            .page-banner h1 {
                font-size: 23px;
            }

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

/* roulang page: category3 */
/* ===== Design Tokens ===== */
        :root {
            --color-primary: #1458a3;
            --color-primary-dark: #0e3f7a;
            --color-primary-deeper: #0a2f5c;
            --color-accent: #2e86de;
            --color-neon: #00e0a4;
            --color-dark: #0b1626;
            --color-bg: #f5f7fa;
            --color-card: #ffffff;
            --color-title: #14283d;
            --color-text: #3c4b5a;
            --color-muted: #8a99a8;
            --color-border: #e8edf2;
            --color-error: #d93026;
            --radius-card: 16px;
            --radius-btn: 10px;
            --radius-sm: 8px;
            --shadow-card: 0 8px 24px rgba(16, 42, 67, 0.06);
            --shadow-card-hover: 0 12px 32px rgba(16, 42, 67, 0.12);
            --transition: 0.2s ease;
            --font-stack: -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background: var(--color-bg);
            padding-top: 64px;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--color-primary-dark);
        }
        button {
            font-family: var(--font-stack);
            cursor: pointer;
            border: none;
            background: none;
        }
        input,
        textarea {
            font-family: var(--font-stack);
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4 {
            color: var(--color-title);
            line-height: 1.3;
            margin: 0;
        }

        /* ===== Layout ===== */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        section {
            padding: 80px 0;
        }
        .section-head {
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
            margin-bottom: 40px;
            gap: 20px;
        }
        .section-head .section-title {
            margin: 0;
        }
        .section-title {
            position: relative;
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            padding-left: 18px;
        }
        .section-title::before {
            content: "";
            position: absolute;
            left: 0;
            top: 8px;
            bottom: 8px;
            width: 4px;
            border-radius: 2px;
            background: linear-gradient(180deg, var(--color-neon), var(--color-primary));
            box-shadow: 0 0 8px rgba(0, 224, 164, 0.5);
        }
        .section-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-primary);
            white-space: nowrap;
            transition: all var(--transition);
        }
        .section-link i {
            margin-left: 4px;
            transition: transform var(--transition);
        }
        .section-link:hover i {
            transform: translateX(4px);
        }
        .section-link:hover {
            color: var(--color-primary-dark);
        }

        /* ===== Buttons ===== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--color-primary);
            color: #ffffff;
            font-size: 15px;
            font-weight: 600;
            height: 46px;
            padding: 0 30px;
            border-radius: var(--radius-btn);
            transition: all var(--transition);
            border: 2px solid transparent;
            box-shadow: 0 4px 14px rgba(20, 88, 163, 0.25);
        }
        .btn-primary:hover {
            background: var(--color-primary-dark);
            color: #ffffff;
            box-shadow: 0 6px 20px rgba(20, 88, 163, 0.35);
            transform: translateY(-1px);
        }
        .btn-primary:active {
            background: var(--color-primary-deeper);
            transform: translateY(0);
        }
        .btn-neon {
            background: var(--color-primary);
            box-shadow: 0 0 12px rgba(0, 224, 164, 0.5), 0 4px 16px rgba(20, 88, 163, 0.3);
        }
        .btn-neon:hover {
            box-shadow: 0 0 22px rgba(0, 224, 164, 0.75), 0 6px 22px rgba(20, 88, 163, 0.4);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: #ffffff;
            font-size: 15px;
            font-weight: 600;
            height: 46px;
            padding: 0 30px;
            border-radius: var(--radius-btn);
            border: 1px solid rgba(255, 255, 255, 0.6);
            transition: all var(--transition);
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #ffffff;
            border-color: var(--color-neon);
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: 64px;
            background: rgba(11, 22, 38, 0.96);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.25);
        }
        .header-inner {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            height: 64px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }
        .brand-logo {
            display: flex;
            align-items: baseline;
            gap: 8px;
            flex-shrink: 0;
            white-space: nowrap;
        }
        .brand-name {
            font-size: 21px;
            font-weight: 800;
            color: #ffffff;
            letter-spacing: 1px;
            text-shadow: 0 0 12px rgba(0, 224, 164, 0.4);
        }
        .brand-domain {
            font-size: 12px;
            font-weight: 400;
            color: rgba(255, 255, 255, 0.45);
            letter-spacing: 0.3px;
        }
        .site-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .site-nav .nav-link {
            position: relative;
            font-size: 15px;
            font-weight: 500;
            color: rgba(255, 255, 255, 0.88);
            padding: 22px 0;
            transition: color var(--transition);
            white-space: nowrap;
        }
        .site-nav .nav-link::after {
            content: "";
            position: absolute;
            left: 0;
            right: 100%;
            bottom: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--color-neon), rgba(0, 224, 164, 0));
            transition: right 0.3s ease;
        }
        .site-nav .nav-link:hover {
            color: var(--color-neon);
            text-shadow: 0 0 8px rgba(0, 224, 164, 0.4);
        }
        .site-nav .nav-link:hover::after {
            right: 0;
        }
        .site-nav .nav-link.active {
            color: var(--color-neon);
            text-shadow: 0 0 12px rgba(0, 224, 164, 0.5);
        }
        .site-nav .nav-link.active::after {
            right: 0;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--color-primary);
            color: #ffffff;
            font-size: 14px;
            font-weight: 600;
            height: 38px;
            padding: 0 20px;
            border-radius: 8px;
            transition: all var(--transition);
            box-shadow: 0 0 10px rgba(0, 224, 164, 0.35);
        }
        .nav-cta:hover {
            background: var(--color-primary-dark);
            color: #ffffff;
            box-shadow: 0 0 18px rgba(0, 224, 164, 0.55);
            transform: translateY(-1px);
        }
        .header-burger {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            color: #ffffff;
            font-size: 20px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 8px;
            transition: all var(--transition);
        }
        .header-burger:hover {
            border-color: var(--color-neon);
            color: var(--color-neon);
        }

        /* ===== Page Banner (分类页头) ===== */
        .page-banner {
            position: relative;
            min-height: 300px;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .page-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(11, 22, 38, 0.96) 0%, rgba(11, 22, 38, 0.75) 45%, rgba(11, 22, 38, 0.35) 80%, rgba(11, 22, 38, 0.1) 100%);
        }
        .page-banner .banner-content {
            position: relative;
            z-index: 2;
            padding: 60px 0;
            max-width: 760px;
        }
        .page-banner .banner-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--color-neon);
            background: rgba(0, 224, 164, 0.1);
            border: 1px solid rgba(0, 224, 164, 0.3);
            padding: 5px 14px;
            border-radius: 100px;
            margin-bottom: 18px;
            letter-spacing: 1px;
        }
        .page-banner h1 {
            font-size: 42px;
            font-weight: 800;
            color: #ffffff;
            line-height: 1.2;
            margin-bottom: 14px;
            text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }
        .page-banner h1 .highlight {
            color: var(--color-neon);
            text-shadow: 0 0 20px rgba(0, 224, 164, 0.5);
        }
        .page-banner .banner-desc {
            font-size: 17px;
            line-height: 1.7;
            color: #c7d5e4;
            max-width: 620px;
        }
        .page-banner .banner-meta {
            display: flex;
            gap: 24px;
            margin-top: 24px;
            flex-wrap: wrap;
        }
        .page-banner .banner-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.65);
        }
        .page-banner .banner-meta i {
            color: var(--color-neon);
        }

        /* ===== 卖点区 ===== */
        .features-section {
            background: var(--color-bg);
        }
        .features-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .feature-card {
            background: var(--color-card);
            border-radius: var(--radius-card);
            padding: 32px 26px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            border: 1px solid transparent;
        }
        .feature-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: rgba(20, 88, 163, 0.4);
        }
        .feature-icon {
            width: 54px;
            height: 54px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(20, 88, 163, 0.08);
            border-radius: 14px;
            font-size: 22px;
            color: var(--color-primary);
            margin-bottom: 20px;
            transition: all var(--transition);
        }
        .feature-card:hover .feature-icon {
            background: rgba(0, 224, 164, 0.1);
            color: var(--color-neon);
            box-shadow: 0 0 12px rgba(0, 224, 164, 0.25);
        }
        .feature-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--color-title);
        }
        .feature-card p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--color-muted);
            margin: 0;
        }

        /* ===== 内容网格卡片 ===== */
        .content-section {
            background: var(--color-card);
        }
        .content-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .content-card {
            background: var(--color-card);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            border: 1px solid transparent;
            display: flex;
            flex-direction: column;
        }
        .content-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: rgba(20, 88, 163, 0.4);
        }
        .card-cover {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: #eef2f6;
        }
        .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .content-card:hover .card-cover img {
            transform: scale(1.04);
        }
        .card-cover .badge {
            position: absolute;
            top: 14px;
            left: 14px;
            display: inline-block;
            background: linear-gradient(135deg, var(--color-neon), #00b57e);
            color: #0a2f1a;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 100px;
            box-shadow: 0 2px 10px rgba(0, 224, 164, 0.4);
        }
        .card-body {
            padding: 20px 22px 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .card-body h3 {
            font-size: 18px;
            font-weight: 600;
            line-height: 1.45;
            margin-bottom: 8px;
            color: var(--color-title);
            transition: color var(--transition);
        }
        .content-card:hover .card-body h3 {
            color: var(--color-primary);
        }
        .card-body .meta {
            font-size: 13px;
            color: var(--color-muted);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .card-body .meta i {
            color: var(--color-accent);
        }
        .card-body p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--color-text);
            margin: 0 0 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .card-link {
            margin-top: auto;
            font-size: 14px;
            font-weight: 600;
            color: var(--color-primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all var(--transition);
        }
        .card-link i {
            transition: transform var(--transition);
        }
        .card-link:hover {
            color: var(--color-primary-dark);
        }
        .card-link:hover i {
            transform: translateX(4px);
        }

        /* ===== 流程区 ===== */
        .process-section {
            background: var(--color-bg);
        }
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 12px;
        }
        .process-step {
            position: relative;
            text-align: center;
            padding: 38px 22px;
            background: var(--color-card);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
        }
        .process-step:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            color: #ffffff;
            font-size: 18px;
            font-weight: 800;
            margin-bottom: 18px;
            box-shadow: 0 4px 14px rgba(20, 88, 163, 0.3);
        }
        .step-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--color-title);
            margin-bottom: 8px;
        }
        .step-desc {
            font-size: 14px;
            color: var(--color-muted);
            line-height: 1.6;
            margin: 0;
        }
        .process-step::after {
            content: "→";
            position: absolute;
            top: 50%;
            right: -22px;
            transform: translateY(-50%);
            font-size: 20px;
            color: var(--color-neon);
            font-weight: 700;
            z-index: 2;
        }
        .process-step:last-child::after {
            display: none;
        }

        /* ===== 数据统计 ===== */
        .stats-section {
            background: var(--color-dark);
            position: relative;
            overflow: hidden;
        }
        .stats-section::before {
            content: "";
            position: absolute;
            top: -60%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(0, 224, 164, 0.12), transparent 65%);
            pointer-events: none;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            position: relative;
            z-index: 2;
        }
        .stat-item {
            text-align: center;
            padding: 20px 16px;
        }
        .stat-num {
            font-size: 42px;
            font-weight: 800;
            color: #ffffff;
            font-variant-numeric: tabular-nums;
            margin-bottom: 6px;
            line-height: 1.2;
        }
        .stat-num .unit {
            font-size: 22px;
            color: var(--color-neon);
            margin-left: 2px;
        }
        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            letter-spacing: 1px;
        }

        /* ===== 时间线 ===== */
        .timeline-section {
            background: var(--color-card);
        }
        .timeline-list {
            max-width: 820px;
            margin: 0 auto;
        }
        .timeline-item {
            display: flex;
            gap: 24px;
            padding: 24px 0;
            border-bottom: 1px solid var(--color-border);
            transition: background var(--transition);
        }
        .timeline-item:last-child {
            border-bottom: none;
        }
        .timeline-date {
            flex-shrink: 0;
            width: 96px;
            text-align: right;
            font-weight: 700;
            font-size: 14px;
            color: var(--color-primary);
            padding-top: 2px;
        }
        .timeline-dot {
            position: relative;
            flex-shrink: 0;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--color-neon);
            box-shadow: 0 0 8px rgba(0, 224, 164, 0.5);
            margin-top: 6px;
        }
        .timeline-dot::after {
            content: "";
            position: absolute;
            top: 14px;
            left: 50%;
            transform: translateX(-50%);
            width: 2px;
            height: calc(100% + 30px);
            background: linear-gradient(180deg, rgba(0, 224, 164, 0.3), transparent);
        }
        .timeline-item:last-child .timeline-dot::after {
            display: none;
        }
        .timeline-content {
            flex: 1;
        }
        .timeline-content h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--color-title);
            margin-bottom: 4px;
        }
        .timeline-content p {
            font-size: 14px;
            color: var(--color-muted);
            margin: 0;
        }
        .timeline-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--color-primary);
            background: rgba(20, 88, 163, 0.08);
            padding: 3px 10px;
            border-radius: 100px;
            margin-left: 8px;
            vertical-align: 2px;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--color-bg);
        }
        .faq-container {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--color-card);
            border-radius: 14px;
            box-shadow: var(--shadow-card);
            margin-bottom: 16px;
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item[aria-expanded="true"] {
            box-shadow: 0 0 0 1px rgba(0, 224, 164, 0.25), var(--shadow-card-hover);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 26px;
            font-size: 16px;
            font-weight: 600;
            color: var(--color-title);
            text-align: left;
            background: none;
            border: none;
            transition: background var(--transition);
        }
        .faq-question:hover {
            background: rgba(245, 247, 250, 0.6);
        }
        .faq-question .ico {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(20, 88, 163, 0.08);
            color: var(--color-primary);
            font-size: 15px;
            font-weight: 800;
            transition: all var(--transition);
        }
        .faq-item[aria-expanded="true"] .faq-question .ico {
            transform: rotate(45deg);
            background: rgba(0, 224, 164, 0.12);
            color: var(--color-neon);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }
        .faq-answer-inner {
            padding: 0 26px 22px;
            font-size: 15px;
            line-height: 1.75;
            color: var(--color-text);
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--color-dark);
            position: relative;
            overflow: hidden;
            text-align: center;
            padding: 90px 0;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            left: 50%;
            top: 50%;
            transform: translate(-50%, -50%);
            width: 640px;
            height: 640px;
            background: radial-gradient(circle, rgba(0, 224, 164, 0.1), transparent 60%);
            pointer-events: none;
        }
        .cta-title {
            font-size: 34px;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 14px;
            position: relative;
        }
        .cta-title span {
            color: var(--color-neon);
            text-shadow: 0 0 16px rgba(0, 224, 164, 0.4);
        }
        .cta-desc {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.6);
            max-width: 560px;
            margin: 0 auto 36px;
            position: relative;
        }
        .cta-buttons {
            display: flex;
            gap: 20px;
            justify-content: center;
            flex-wrap: wrap;
            position: relative;
        }

        /* ===== 分页条 ===== */
        .pagination-bar {
            display: flex;
            justify-content: center;
            gap: 10px;
            margin-top: 48px;
            flex-wrap: wrap;
        }
        .pagination-bar a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 42px;
            height: 42px;
            padding: 0 14px;
            border-radius: 10px;
            background: var(--color-card);
            color: var(--color-text);
            font-size: 14px;
            font-weight: 600;
            box-shadow: 0 2px 10px rgba(16, 42, 67, 0.06);
            transition: all var(--transition);
            border: 1px solid transparent;
        }
        .pagination-bar a:hover {
            color: var(--color-primary);
            border-color: rgba(20, 88, 163, 0.4);
        }
        .pagination-bar a.current {
            background: var(--color-primary);
            color: #ffffff;
            box-shadow: 0 4px 16px rgba(20, 88, 163, 0.3);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--color-dark);
            border-top: 2px solid transparent;
            border-image: linear-gradient(90deg, var(--color-neon), rgba(0, 224, 164, 0.1), transparent) 1;
            padding-top: 48px;
        }
        .site-footer .container {
            padding-bottom: 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-brand .brand-logo {
            margin-bottom: 14px;
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.75;
            color: rgba(255, 255, 255, 0.55);
            margin: 0;
            max-width: 280px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 18px;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: #93a5b5;
            transition: all var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--color-neon);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 22px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
            margin: 0;
        }
        .footer-bottom .beian {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar {
            width: 10px;
            height: 8px;
        }
        ::-webkit-scrollbar-track {
            background: #eef2f6;
        }
        ::-webkit-scrollbar-thumb {
            background: #c5d0da;
            border-radius: 6px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: #a5b4c2;
        }

        /* ===== Focus ===== */
        a:focus,
        button:focus {
            outline: 2px solid var(--color-neon);
            outline-offset: 2px;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1023px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .content-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-step::after {
                display: none;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .page-banner {
                min-height: 280px;
            }
            .page-banner h1 {
                font-size: 34px;
            }
            .site-nav {
                display: none;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: var(--color-dark);
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                padding: 8px 24px 16px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.08);
                box-shadow: 0 16px 30px rgba(0, 0, 0, 0.3);
            }
            .site-nav.open {
                display: flex;
            }
            .site-nav .nav-link {
                display: block;
                width: 100%;
                padding: 14px 0;
                border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            }
            .site-nav .nav-link::after {
                display: none;
            }
            .header-burger {
                display: inline-flex;
            }
            .header-actions .nav-cta {
                display: none;
            }
        }
        @media (max-width: 639px) {
            body {
                padding-top: 58px;
            }
            .header-inner {
                height: 58px;
                padding: 0 16px;
                gap: 12px;
            }
            .brand-name {
                font-size: 18px;
            }
            .brand-domain {
                font-size: 11px;
            }
            .header-burger {
                width: 36px;
                height: 36px;
                font-size: 18px;
            }
            section {
                padding: 48px 0;
            }
            .section-head {
                margin-bottom: 28px;
                align-items: center;
            }
            .section-title {
                font-size: 24px;
            }
            .page-banner {
                min-height: 260px;
            }
            .page-banner h1 {
                font-size: 28px;
            }
            .page-banner .banner-desc {
                font-size: 15px;
            }
            .page-banner .banner-content {
                padding: 40px 0;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .content-grid {
                grid-template-columns: 1fr;
            }
            .process-steps {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .stat-num {
                font-size: 32px;
            }
            .timeline-item {
                gap: 14px;
            }
            .timeline-date {
                width: 70px;
                font-size: 13px;
            }
            .cta-section {
                padding: 60px 0;
            }
            .cta-title {
                font-size: 26px;
            }
            .cta-buttons {
                flex-direction: column;
                align-items: stretch;
                padding: 0 24px;
            }
            .btn-primary,
            .btn-outline {
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .pagination-bar a {
                min-width: 38px;
                height: 38px;
            }
        }