/* roulang page: index */
:root {
  --primary: #0f3d2e;
  --neon: #00e57a;
  --accent: #ff7a1a;
  --bg: #0a0f0d;
  --card: #111a17;
  --card2: #16211d;
  --text: #e8f0ec;
  --text2: #9fb3a8;
  --text3: #6b7a70;
  --border: rgba(0, 229, 122, 0.15);
  --radius: 16px;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  --shadow-hover: 0 8px 30px rgba(0, 229, 122, 0.08);
  --glow: 0 0 40px rgba(0, 229, 122, 0.15);
  --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --font-mono: "SF Mono", Consolas, monospace;
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-main);
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  font-size: 16px;
  overflow-x: hidden;
}
a {
  text-decoration: none;
  color: inherit;
}
a:hover {
  color: var(--neon);
}
img {
  max-width: 100%;
  height: auto;
}
.container {
  max-width: 1200px;
  padding-left: 20px;
  padding-right: 20px;
}
section {
  padding: 80px 0;
}
@media (max-width: 768px) {
  section {
    padding: 48px 0;
  }
}

/* ========== 导航 ========== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1050;
  background: rgba(10, 15, 13, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid transparent;
  background-image: linear-gradient(90deg, transparent, var(--neon) 15%, var(--accent) 85%, transparent);
  background-repeat: no-repeat;
  background-position: bottom;
  background-size: 100% 1px;
}
.main-nav {
  min-height: 64px;
  padding: 0;
}
.navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 19px;
  color: var(--text) !important;
  letter-spacing: 0.5px;
}
.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), #1a6b4d);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--neon);
  font-size: 17px;
  box-shadow: 0 0 18px rgba(0, 229, 122, 0.35);
}
.navbar-nav {
  gap: 6px;
}
.nav-link {
  color: #cfe3d8 !important;
  font-weight: 500;
  font-size: 15px;
  padding: 10px 14px !important;
  border-radius: 10px;
  position: relative;
  transition: color 0.25s, background 0.25s;
}
.nav-link::after {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--neon);
  border-radius: 2px;
  transition: width 0.3s;
}
.nav-link:hover {
  color: #ffffff !important;
}
.nav-link:hover::after {
  width: 60%;
}
.nav-link.active {
  color: var(--neon) !important;
  font-weight: 600;
}
.nav-link.active::after {
  width: 60%;
  box-shadow: 0 8px 16px -8px rgba(0, 229, 122, 0.6);
}
.navbar-toggler {
  border: 1px solid rgba(0, 229, 122, 0.4);
  background: transparent;
  padding: 6px 10px;
}
.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(0,229,122,0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}
@media (max-width: 991.98px) {
  .navbar-collapse {
    background: #0a0f0d;
    padding: 14px 16px;
    border-radius: 0 0 16px 16px;
    border-bottom: 1px solid var(--border);
    margin-top: 8px;
  }
  .navbar-nav {
    gap: 4px;
  }
  .nav-link {
    padding: 12px 14px !important;
  }
  .btn-neon-outline {
    margin-top: 8px;
    margin-bottom: 8px;
    width: 100%;
    text-align: center;
  }
}

/* ========== 按钮 ========== */
.btn {
  border-radius: 999px;
  font-weight: 600;
  transition: all 0.25s ease;
  padding: 10px 24px;
  font-size: 15px;
  border: none;
}
.btn-neon-outline {
  background: transparent;
  border: 1.5px solid var(--neon);
  color: var(--neon) !important;
  padding: 8px 20px;
  font-size: 14px;
}
.btn-neon-outline:hover {
  background: var(--neon);
  color: #000 !important;
  box-shadow: 0 0 24px rgba(0, 229, 122, 0.55);
  transform: translateY(-2px);
}
.btn-hero-primary {
  background: var(--neon);
  color: #000 !important;
  padding: 14px 34px;
  font-size: 16px;
  box-shadow: 0 4px 20px rgba(0, 229, 122, 0.3);
}
.btn-hero-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(0, 229, 122, 0.55);
}
.btn-hero-ghost {
  background: transparent;
  border: 1.5px solid rgba(255, 255, 255, 0.6);
  color: #fff !important;
  padding: 13px 28px;
  font-size: 16px;
}
.btn-hero-ghost:hover {
  border-color: var(--neon);
  color: var(--neon) !important;
  transform: translateY(-2px);
}
.btn-level-outline {
  background: transparent;
  border: 1.5px solid var(--neon);
  color: var(--neon) !important;
  width: 100%;
}
.btn-level-outline:hover {
  background: var(--neon);
  color: #000 !important;
  box-shadow: 0 0 20px rgba(0, 229, 122, 0.4);
}
.btn-level-solid {
  background: var(--neon);
  color: #000 !important;
  width: 100%;
  box-shadow: 0 0 25px rgba(0, 229, 122, 0.35);
}
.btn-level-solid:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 40px rgba(0, 229, 122, 0.6);
}
.btn-unlock {
  background: transparent;
  border: 1.5px solid var(--neon);
  color: var(--neon) !important;
  padding: 9px 22px;
  font-size: 14px;
}
.btn-unlock:hover {
  background: var(--neon);
  color: #000 !important;
  box-shadow: 0 0 24px rgba(0, 229, 122, 0.5);
  transform: translateY(-2px);
}
.btn-cta-lg {
  background: var(--neon);
  color: #000 !important;
  padding: 15px 42px;
  font-size: 17px;
  font-weight: 700;
  box-shadow: 0 0 30px rgba(0, 229, 122, 0.35);
}
.btn-cta-lg:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 0 55px rgba(0, 229, 122, 0.6);
}
.btn-compare {
  background: var(--neon);
  color: #000 !important;
  font-size: 14px;
  padding: 8px 20px;
  display: inline-block;
  margin-top: 10px;
}
.btn-compare:hover {
  box-shadow: 0 0 24px rgba(0, 229, 122, 0.5);
  transform: translateY(-2px);
}

/* ========== 区块标题 ========== */
.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 50px;
}
.section-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--neon);
  background: rgba(0, 229, 122, 0.08);
  padding: 5px 16px;
  border-radius: 999px;
  border: 1px solid rgba(0, 229, 122, 0.2);
  margin-bottom: 14px;
}
.section-title {
  font-size: 36px;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--text);
  line-height: 1.3;
  position: relative;
  padding-left: 18px;
}
.section-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 70%;
  background: var(--neon);
  border-radius: 4px;
  box-shadow: 0 0 20px rgba(0, 229, 122, 0.5);
}
.section-desc {
  color: var(--text2);
  font-size: 15px;
  margin-top: 12px;
}
@media (max-width: 768px) {
  .section-title {
    font-size: 28px;
  }
}

/* ========== Hero ========== */
.hero-section {
  position: relative;
  min-height: 620px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 0;
  overflow: hidden;
  border-bottom: 1px solid rgba(0, 229, 122, 0.1);
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  z-index: 0;
}
.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(10, 15, 13, 0.95) 0%, rgba(10, 15, 13, 0.75) 50%, rgba(10, 15, 13, 0.55) 100%);
}
.hero-container {
  position: relative;
  z-index: 2;
  padding-top: 120px;
  padding-bottom: 80px;
}
.hero-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 229, 122, 0.08);
  border: 1px solid rgba(0, 229, 122, 0.3);
  color: var(--neon);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 22px;
}
.hero-title {
  font-size: 56px;
  font-weight: 700;
  letter-spacing: -0.5px;
  line-height: 1.2;
  background: linear-gradient(135deg, var(--neon) 0%, #4dffa7 50%, #1fbf72 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 18px;
}
.hero-sub {
  font-size: 18px;
  color: #cfe3d8;
  max-width: 420px;
  margin-bottom: 32px;
  line-height: 1.6;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.hero-visual {
  position: relative;
  text-align: center;
}
.hero-img {
  border-radius: 20px;
  border: 2px solid rgba(0, 229, 122, 0.3);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  max-height: 380px;
  width: 100%;
  object-fit: cover;
}
.hero-dot {
  position: absolute;
  border-radius: 50%;
  filter: blur(2px);
  opacity: 0.7;
}
.hero-dot.dot-1 {
  width: 12px;
  height: 12px;
  background: var(--neon);
  top: 12%;
  right: 18%;
  box-shadow: 0 0 20px rgba(0, 229, 122, 0.8);
}
.hero-dot.dot-2 {
  width: 8px;
  height: 8px;
  background: var(--accent);
  bottom: 18%;
  left: 12%;
  box-shadow: 0 0 16px rgba(255, 122, 26, 0.8);
}
.hero-stats {
  position: relative;
  z-index: 2;
  width: 100%;
  padding: 24px 0;
  background: rgba(10, 15, 13, 0.7);
  backdrop-filter: blur(6px);
  border-top: 1px solid rgba(0, 229, 122, 0.2);
}
.stats-row {
  display: flex;
  justify-content: center;
  gap: 60px;
  flex-wrap: wrap;
  text-align: center;
}
.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}
.stat-num {
  font-family: var(--font-mono);
  font-size: 32px;
  font-weight: 800;
  color: var(--neon);
  text-shadow: 0 0 20px rgba(0, 229, 122, 0.3);
}
.stat-label {
  font-size: 13px;
  color: var(--text3);
}
@media (max-width: 991.98px) {
  .hero-title {
    font-size: 40px;
  }
  .hero-sub {
    font-size: 16px;
  }
  .hero-visual {
    margin-top: 40px;
  }
}
@media (max-width: 575.98px) {
  .hero-title {
    font-size: 34px;
  }
  .stats-row {
    gap: 30px;
  }
  .stat-num {
    font-size: 26px;
  }
}

/* ========== 新闻列表 ========== */
.section-news {
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}
.news-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  height: 100%;
  display: flex;
  flex-direction: column;
  transition: all 0.3s ease;
  box-shadow: var(--shadow);
}
.news-card:hover {
  border-color: rgba(0, 229, 122, 0.35);
  box-shadow: var(--shadow-hover), var(--glow);
  transform: translateY(-4px);
}
.news-tag {
  display: inline-block;
  background: transparent;
  border: 1px solid var(--neon);
  color: var(--neon);
  font-size: 12px;
  font-weight: 500;
  padding: 4px 14px;
  border-radius: 999px;
  margin-bottom: 14px;
  align-self: flex-start;
}
.news-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.45;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-title a {
  color: inherit;
  transition: color 0.2s;
}
.news-title a:hover {
  color: var(--neon);
}
.news-summary {
  font-size: 14px;
  color: var(--text2);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 16px;
  flex-grow: 1;
}
.news-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
}
.news-time {
  font-size: 13px;
  color: var(--text3);
}
.empty-state {
  background: var(--card);
  border: 1px dashed rgba(0, 229, 122, 0.2);
  border-radius: var(--radius);
  padding: 60px 20px;
  text-align: center;
  color: var(--text2);
  font-size: 15px;
}
.empty-state i {
  font-size: 40px;
  color: var(--text3);
  margin-bottom: 16px;
  display: block;
}

/* ========== 权益对比 ========== */
.section-compare {
  background: linear-gradient(180deg, var(--bg) 0%, var(--card) 100%);
}
.compare-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(4, 1fr);
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--card);
}
.compare-row {
  display: contents;
}
.compare-row:nth-child(even) {
  background: rgba(0, 229, 122, 0.02);
}
.compare-cell {
  padding: 18px 14px;
  background: var(--card);
  border-bottom: 1px solid var(--border);
  text-align: center;
  font-size: 14px;
  color: var(--text2);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: background 0.25s;
}
.compare-row:hover .compare-cell {
  background: rgba(0, 229, 122, 0.06);
}
.compare-cell i {
  color: var(--neon);
  font-size: 15px;
  margin-bottom: 4px;
}
.compare-cell.feature-col {
  text-align: left;
  color: var(--text);
  font-weight: 600;
  background: var(--card2);
  align-items: flex-start;
  justify-content: center;
}
.compare-header .compare-cell {
  background: var(--primary) !important;
  color: #fff;
  font-weight: 600;
  font-size: 16px;
  padding: 20px 14px;
}
.compare-header .compare-cell.recommend {
  background: #14523e !important;
  position: relative;
  border-top: 3px solid var(--neon);
  box-shadow: inset 0 0 30px rgba(0, 229, 122, 0.08);
}
.recommend-badge {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 12px;
  border-radius: 999px;
  margin-top: 6px;
  box-shadow: 0 0 12px rgba(255, 122, 26, 0.4);
}
.compare-btn-cell {
  background: var(--card);
  border-bottom: none !important;
  padding: 20px 14px;
}
.mobile-compare {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.mobile-level-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
}
.mobile-level-card.recommend {
  border: 2px solid var(--neon);
  box-shadow: 0 0 25px rgba(0, 229, 122, 0.15);
}
.mobile-level-card .mobile-level-head {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}
.mobile-level-card ul {
  list-style: none;
  padding: 0;
  margin: 0 0 18px;
}
.mobile-level-card ul li {
  padding: 6px 0;
  font-size: 14px;
  color: var(--text2);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}
.mobile-level-card ul li i {
  color: var(--neon);
  margin-right: 6px;
}
.mobile-level-card ul li.off i {
  color: var(--text3);
}

/* ========== 等级亮点 ========== */
.section-levels {
  background: var(--bg);
}
.level-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 34px 26px;
  text-align: center;
  height: 100%;
  display: flex;
  flex-direction: column;
  transition: all 0.3s ease;
  box-shadow: var(--shadow);
}
.level-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover), var(--glow);
}
.level-card.recommend {
  border: 2px solid var(--neon);
  box-shadow: 0 0 35px rgba(0, 229, 122, 0.18);
  position: relative;
}
.level-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 5px 18px;
  border-radius: 999px;
  white-space: nowrap;
  box-shadow: 0 4px 14px rgba(255, 122, 26, 0.4);
}
.level-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 22px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), #1a6b4d);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--neon);
  font-size: 24px;
  box-shadow: 0 0 20px rgba(0, 229, 122, 0.3);
}
.level-name {
  font-size: 22px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 12px;
}
.level-price {
  margin-bottom: 22px;
}
.price-num {
  font-family: var(--font-mono);
  font-size: 32px;
  font-weight: 800;
  color: var(--neon);
}
.price-unit {
  font-size: 14px;
  color: var(--text3);
  margin-left: 4px;
}
.level-list {
  list-style: none;
  padding: 0;
  margin: 0 0 26px;
  text-align: left;
  flex-grow: 1;
}
.level-list li {
  padding: 7px 0;
  font-size: 14px;
  color: var(--text2);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  display: flex;
  align-items: center;
  gap: 10px;
}
.level-list li i {
  color: var(--neon);
  width: 18px;
  text-align: center;
  font-size: 13px;
}
.level-list li.disabled {
  color: var(--text3);
}
.level-list li.disabled i {
  color: var(--text3);
}

/* ========== 专属内容 ========== */
.section-exclusive {
  background: linear-gradient(180deg, var(--bg), #0d1411);
  border-top: 1px solid var(--border);
}
.exclusive-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  overflow: hidden;
  display: flex;
  flex-direction: row;
  margin-bottom: 28px;
  transition: box-shadow 0.3s;
}
.exclusive-card:hover {
  box-shadow: 0 8px 35px rgba(0, 229, 122, 0.1);
}
.exclusive-media {
  position: relative;
  flex: 0 0 300px;
  min-height: 200px;
  overflow: hidden;
}
.exclusive-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.exclusive-overlay {
  position: absolute;
  inset: 0;
  background: rgba(10, 15, 13, 0.7);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: background 0.3s;
}
.exclusive-card:hover .exclusive-overlay {
  background: rgba(10, 15, 13, 0.5);
}
.exclusive-overlay i {
  font-size: 32px;
  color: rgba(255, 255, 255, 0.45);
  transition: transform 0.3s;
}
.exclusive-card:hover .exclusive-overlay i {
  transform: scale(1.15);
}
.exclusive-tag {
  background: var(--accent);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 999px;
}
.exclusive-content {
  padding: 26px 28px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.exclusive-content h3 {
  font-size: 21px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 10px;
}
.exclusive-content p {
  font-size: 14px;
  color: var(--text2);
  line-height: 1.7;
  margin-bottom: 20px;
}
@media (max-width: 768px) {
  .exclusive-card {
    flex-direction: column;
  }
  .exclusive-media {
    flex: none;
    min-height: 170px;
  }
}

/* ========== FAQ ========== */
.section-faq {
  background: var(--bg);
}
.faq-accordion {
  max-width: 800px;
  margin: 0 auto;
}
.faq-accordion .accordion-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color 0.3s, box-shadow 0.3s;
}
.faq-accordion .accordion-item:has(.accordion-button:not(.collapsed)) {
  border-color: rgba(0, 229, 122, 0.4);
  box-shadow: 0 0 16px rgba(0, 229, 122, 0.06);
}
.faq-accordion .accordion-button {
  background: var(--card);
  color: var(--text);
  font-weight: 600;
  font-size: 16px;
  padding: 20px 24px;
  box-shadow: none;
  border-radius: 14px !important;
  position: relative;
}
.faq-accordion .accordion-button::after {
  content: "+";
  background: none;
  font-size: 22px;
  color: var(--neon);
  transform: none;
  width: auto;
  height: auto;
  font-weight: 400;
  transition: transform 0.3s;
}
.faq-accordion .accordion-button:not(.collapsed)::after {
  transform: rotate(45deg);
}
.faq-accordion .accordion-button:not(.collapsed) {
  background: var(--card);
  color: var(--neon);
  border-left: 3px solid var(--neon);
}
.faq-accordion .accordion-button:focus {
  box-shadow: 0 0 0 4px rgba(0, 229, 122, 0.08);
}
.faq-accordion .accordion-body {
  padding: 4px 24px 22px;
  background: var(--card);
  color: var(--text2);
  font-size: 14px;
  line-height: 1.75;
  border-left: 3px solid transparent;
}

/* ========== CTA ========== */
.section-cta {
  background: var(--bg);
  padding-bottom: 80px;
}
.cta-box {
  background: var(--primary);
  border-radius: 22px;
  padding: 60px 40px;
  text-align: center;
  position: relative;
  border: 1px solid rgba(0, 229, 122, 0.3);
  box-shadow: 0 0 50px rgba(0, 229, 122, 0.1);
  overflow: hidden;
}
.cta-box::before {
  content: "";
  position: absolute;
  inset: 8px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  pointer-events: none;
}
.cta-content {
  max-width: 640px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}
.cta-content h2 {
  font-size: 32px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
}
.cta-content p {
  font-size: 15px;
  color: #cfe3d8;
  margin-bottom: 28px;
}
.cta-icon {
  font-size: 44px;
  color: var(--neon);
  margin-bottom: 18px;
  display: block;
  text-shadow: 0 0 20px rgba(0, 229, 122, 0.5);
}
@media (max-width: 768px) {
  .cta-box {
    padding: 40px 20px;
  }
  .cta-content h2 {
    font-size: 26px;
  }
}

/* ========== 页脚 ========== */
.site-footer {
  background: #070a08;
  border-top: 1px solid rgba(0, 229, 122, 0.15);
  padding: 60px 0 24px;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 700;
  color: var(--text) !important;
  margin-bottom: 12px;
}
.footer-brand .brand-mark {
  width: 34px;
  height: 34px;
  font-size: 15px;
}
.footer-desc {
  font-size: 14px;
  color: var(--text3);
  line-height: 1.7;
  max-width: 300px;
}
.footer-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 8px;
}
.footer-title::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 32px;
  height: 2px;
  background: var(--neon);
}
.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-links li {
  margin-bottom: 8px;
}
.footer-links a {
  color: var(--text2);
  font-size: 14px;
  transition: color 0.2s;
}
.footer-links a:hover {
  color: var(--neon);
  text-decoration: underline;
  text-underline-offset: 4px;
}
.footer-contact li {
  color: var(--text2);
  font-size: 14px;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.footer-contact i {
  color: var(--neon);
  width: 18px;
  text-align: center;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 20px;
  margin-top: 44px;
  text-align: center;
}
.footer-bottom p {
  font-size: 13px;
  color: var(--text3);
}

/* ========== 响应式 ========== */
@media (max-width: 1199.98px) {
  .compare-grid {
    grid-template-columns: 1.2fr repeat(4, 1fr);
  }
}
@media (max-width: 991.98px) {
  .compare-grid {
    display: none;
  }
  .mobile-compare {
    display: flex;
  }
}
@media (min-width: 992px) {
  .mobile-compare {
    display: none;
  }
}
@media (min-width: 768px) and (max-width: 991.98px) {
  .mobile-compare {
    flex-direction: row;
    flex-wrap: wrap;
  }
  .mobile-level-card {
    flex: 1 1 calc(50% - 20px);
  }
}
@media (max-width: 575.98px) {
  .btn-hero-primary,
  .btn-hero-ghost {
    width: 100%;
    text-align: center;
  }
  .hero-actions {
    flex-direction: column;
  }
  .exclusive-content {
    padding: 20px;
  }
  .level-card {
    padding: 24px 18px;
  }
}

/* roulang page: category1 */
:root {
    --primary: #0f3d2e;
    --neon: #00e57a;
    --orange: #ff7a1a;
    --bg: #0a0f0d;
    --surface: #111a17;
    --surface-2: #16211d;
    --text: #e8f0ec;
    --text-2: #9fb3a8;
    --text-3: #6b7a70;
    --border: rgba(0, 229, 122, 0.15);
    --radius: 16px;
    --radius-sm: 10px;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    --shadow-hover: 0 8px 30px rgba(0, 229, 122, 0.08);
    --glow: 0 0 40px rgba(0, 229, 122, 0.15);
    --transition: 0.3s ease;
}
* {
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
body {
    margin: 0;
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 16px;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
}
a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition), border-color var(--transition), background var(--transition), box-shadow var(--transition), transform var(--transition);
}
img {
    max-width: 100%;
    height: auto;
}
.container {
    max-width: 1200px;
}
.section {
    padding: 80px 0;
}
.section h2 {
    font-size: 32px;
    font-weight: 700;
    letter-spacing: -0.5px;
    margin-bottom: 16px;
}
.section-lead {
    color: var(--text-2);
    font-size: 16px;
    max-width: 640px;
    margin: 0 auto;
}
.section-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 229, 122, 0.08);
    border: 1px solid rgba(0, 229, 122, 0.25);
    color: var(--neon);
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.5px;
    padding: 4px 14px;
    border-radius: 999px;
    margin-bottom: 14px;
}

/* ===== Header ===== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 15, 13, 0.92);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border);
}
.main-nav {
    min-height: 64px;
    padding: 0;
}
.navbar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 18px;
    color: var(--text) !important;
    letter-spacing: 0.5px;
    line-height: 1.2;
}
.brand-mark {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--primary);
    border: 1px solid var(--neon);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--neon);
    font-size: 15px;
    flex-shrink: 0;
    box-shadow: 0 0 12px rgba(0, 229, 122, 0.3);
}
.navbar-nav {
    gap: 4px;
}
.navbar-nav .nav-link {
    color: #cfe3d8;
    font-size: 15px;
    font-weight: 500;
    padding: 8px 14px !important;
    border-radius: 8px;
    position: relative;
    transition: color var(--transition), background var(--transition), box-shadow var(--transition);
}
.navbar-nav .nav-link:hover {
    color: #fff;
    background: rgba(0, 229, 122, 0.06);
}
.navbar-nav .nav-link.active {
    color: var(--neon);
    background: rgba(0, 229, 122, 0.08);
    box-shadow: 0 8px 16px -8px rgba(0, 229, 122, 0.6);
}
.navbar-toggler {
    border-color: rgba(0, 229, 122, 0.4);
    padding: 4px 8px;
    background: transparent;
}
.navbar-toggler:focus {
    box-shadow: 0 0 0 3px rgba(0, 229, 122, 0.2);
}
.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(0, 229, 122, 1)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}
.btn-neon-outline {
    border: 1.5px solid var(--neon);
    color: var(--neon);
    background: transparent;
    border-radius: 999px;
    padding: 8px 22px;
    font-weight: 600;
    font-size: 14px;
    white-space: nowrap;
    transition: all var(--transition);
}
.btn-neon-outline:hover {
    background: var(--neon);
    color: #06130d;
    box-shadow: 0 0 24px rgba(0, 229, 122, 0.55);
    transform: translateY(-2px);
}
@media (max-width: 991.98px) {
    .navbar-collapse {
        background: var(--bg);
        border-radius: 12px;
        padding: 16px;
        margin-top: 10px;
        border: 1px solid var(--border);
    }
    .navbar-nav {
        gap: 8px;
    }
    .navbar-nav .nav-link {
        padding: 10px 14px !important;
    }
    .btn-neon-outline {
        margin-top: 12px;
        display: inline-block;
        text-align: center;
    }
}

/* ===== Category Hero ===== */
.category-hero {
    position: relative;
    padding: 150px 0 80px;
    background: linear-gradient(135deg, rgba(10, 15, 13, 0.95) 20%, rgba(10, 15, 13, 0.75) 60%, rgba(10, 15, 13, 0.9) 100%), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
    border-bottom: 1px solid var(--border);
}
.category-hero .container {
    position: relative;
    z-index: 2;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 229, 122, 0.1);
    border: 1px solid rgba(0, 229, 122, 0.35);
    color: var(--neon);
    font-size: 13px;
    font-weight: 500;
    padding: 5px 16px;
    border-radius: 999px;
    margin-bottom: 18px;
    letter-spacing: 0.5px;
}
.category-hero h1 {
    font-size: 48px;
    font-weight: 700;
    letter-spacing: -0.5px;
    line-height: 1.25;
    margin-bottom: 16px;
    background: linear-gradient(120deg, var(--neon), #a8ffd0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-sub {
    font-size: 18px;
    color: var(--text-2);
    max-width: 560px;
    margin-bottom: 28px;
}
.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    align-items: center;
}
.btn-neon-solid {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--neon);
    color: #06130d;
    font-weight: 700;
    font-size: 15px;
    border: none;
    border-radius: 999px;
    padding: 12px 28px;
    box-shadow: 0 0 20px rgba(0, 229, 122, 0.3);
    transition: all var(--transition);
    white-space: nowrap;
}
.btn-neon-solid:hover {
    box-shadow: 0 0 32px rgba(0, 229, 122, 0.55);
    transform: translateY(-2px);
    color: #06130d;
}
.btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: 1.5px solid rgba(255, 255, 255, 0.6);
    color: #fff;
    background: transparent;
    border-radius: 999px;
    padding: 11px 26px;
    font-weight: 600;
    font-size: 15px;
    transition: all var(--transition);
    white-space: nowrap;
}
.btn-ghost:hover {
    border-color: var(--neon);
    color: var(--neon);
    transform: translateY(-2px);
}

/* ===== Intro ===== */
.category-intro {
    background: var(--bg);
}
.category-intro h2 {
    font-size: 30px;
}
.category-intro p {
    color: var(--text-2);
    font-size: 16px;
    margin-bottom: 16px;
}
.intro-image {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-hover);
    border: 1px solid var(--border);
}
.intro-image img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    min-height: 300px;
}
.image-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    background: var(--orange);
    color: #0a0f0d;
    font-size: 13px;
    font-weight: 700;
    padding: 4px 14px;
    border-radius: 999px;
    box-shadow: 0 4px 16px rgba(255, 122, 26, 0.35);
}
.intro-list {
    list-style: none;
    padding: 0;
    margin: 18px 0 0;
}
.intro-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: var(--text-2);
    font-size: 15px;
    margin-bottom: 10px;
}
.intro-list li i {
    color: var(--neon);
    margin-top: 6px;
    font-size: 14px;
    flex-shrink: 0;
}

/* ===== Features ===== */
.dark-plate {
    background: linear-gradient(180deg, #0d1411, #0a0f0d);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}
.dark-plate::before {
    content: '';
    position: absolute;
    top: -80px;
    right: -80px;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(0, 229, 122, 0.06), transparent 70%);
    pointer-events: none;
}
.feature-card {
    position: relative;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 30px 24px;
    height: 100%;
    transition: all var(--transition);
    overflow: hidden;
}
.feature-card:hover {
    background: var(--surface-2);
    border-color: rgba(0, 229, 122, 0.3);
    box-shadow: var(--shadow-hover);
    transform: translateY(-4px);
}
.feature-icon {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--primary);
    border: 1px solid rgba(0, 229, 122, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--neon);
    font-size: 22px;
    margin-bottom: 20px;
    box-shadow: 0 0 16px rgba(0, 229, 122, 0.2);
}
.feature-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text);
}
.feature-card p {
    font-size: 14px;
    color: var(--text-2);
    line-height: 1.7;
    margin: 0;
}

/* ===== Jump Cards ===== */
.category-jump {
    background: var(--bg);
}
.jump-card {
    display: flex;
    flex-direction: column;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 24px;
    height: 100%;
    transition: all var(--transition);
    position: relative;
}
.jump-card:hover {
    border-color: rgba(0, 229, 122, 0.3);
    box-shadow: var(--shadow-hover);
    transform: translateY(-4px);
    background: var(--surface-2);
}
.jump-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(0, 229, 122, 0.1);
    border: 1px solid rgba(0, 229, 122, 0.25);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: var(--neon);
    margin-bottom: 18px;
    transition: all var(--transition);
}
.jump-card:hover .jump-icon {
    background: var(--neon);
    color: #06130d;
    box-shadow: 0 0 20px rgba(0, 229, 122, 0.4);
}
.jump-card h3 {
    font-size: 19px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text);
}
.jump-card p {
    font-size: 14px;
    color: var(--text-2);
    line-height: 1.65;
    margin-bottom: 18px;
    flex-grow: 1;
}
.jump-link {
    color: var(--neon);
    font-size: 14px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: gap var(--transition);
}
.jump-card:hover .jump-link {
    gap: 12px;
}

/* ===== CTA ===== */
.category-cta {
    background: linear-gradient(180deg, var(--bg), #0d1411);
    padding: 60px 0 80px;
}
.cta-box {
    background: var(--primary);
    border: 1px solid rgba(0, 229, 122, 0.3);
    border-radius: 20px;
    padding: 56px 32px;
    text-align: center;
    position: relative;
    box-shadow: 0 0 40px rgba(0, 229, 122, 0.08);
    max-width: 860px;
    margin: 0 auto;
}
.cta-box::before {
    content: '';
    position: absolute;
    inset: 8px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 14px;
    pointer-events: none;
}
.cta-box h2 {
    font-size: 28px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 12px;
    position: relative;
}
.cta-box p {
    font-size: 15px;
    color: #cfe3d8;
    max-width: 560px;
    margin: 0 auto 30px;
    position: relative;
}
.cta-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    justify-content: center;
    position: relative;
}
.btn-outline-light {
    border: 1.5px solid rgba(255, 255, 255, 0.55);
    color: #fff;
    background: transparent;
    border-radius: 999px;
    padding: 11px 28px;
    font-weight: 600;
    font-size: 15px;
    transition: all var(--transition);
    white-space: nowrap;
}
.btn-outline-light:hover {
    border-color: var(--neon);
    color: var(--neon);
    transform: translateY(-2px);
}

/* ===== Footer ===== */
.site-footer {
    background: #070a08;
    border-top: 1px solid var(--border);
    padding: 64px 0 0;
    position: relative;
}
.site-footer::before {
    content: '';
    position: absolute;
    top: -1px;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--neon) 15%, var(--orange) 85%, transparent);
}
.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 18px;
    color: var(--text) !important;
    margin-bottom: 14px;
}
.footer-desc {
    color: var(--text-2);
    font-size: 14px;
    line-height: 1.7;
    max-width: 320px;
    margin-bottom: 0;
}
.footer-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 16px;
    letter-spacing: 0.5px;
}
.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}
.footer-links li {
    margin-bottom: 10px;
}
.footer-links a {
    color: var(--text-2);
    font-size: 14px;
    transition: all var(--transition);
    display: inline-block;
}
.footer-links a:hover {
    color: var(--neon);
    text-decoration: none;
    transform: translateX(4px);
}
.footer-contact li {
    color: var(--text-2);
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
}
.footer-contact i {
    color: var(--neon);
    font-size: 14px;
    flex-shrink: 0;
}
.footer-bottom {
    margin-top: 40px;
    border-top: 1px solid var(--border);
    padding: 20px 0 24px;
    text-align: center;
}
.footer-bottom p {
    color: var(--text-3);
    font-size: 13px;
    margin: 0;
}

/* ===== Responsive ===== */
@media (max-width: 991.98px) {
    .section {
        padding: 60px 0;
    }
    .category-hero {
        padding: 130px 0 60px;
    }
    .category-hero h1 {
        font-size: 38px;
    }
    .intro-image img {
        min-height: 240px;
    }
}
@media (max-width: 767.98px) {
    .section {
        padding: 48px 0;
    }
    .category-hero {
        padding: 110px 0 48px;
    }
    .category-hero h1 {
        font-size: 30px;
    }
    .hero-sub {
        font-size: 16px;
    }
    .section h2 {
        font-size: 26px;
    }
    .hero-actions {
        flex-direction: column;
        align-items: flex-start;
    }
    .hero-actions .btn {
        width: 100%;
        justify-content: center;
    }
    .cta-box {
        padding: 40px 20px;
    }
    .cta-box h2 {
        font-size: 24px;
    }
    .cta-actions .btn {
        width: 100%;
        justify-content: center;
    }
    .footer-links {
        margin-bottom: 20px;
    }
}
@media (max-width: 575.98px) {
    .navbar-brand span {
        font-size: 16px;
    }
    .brand-mark {
        width: 32px;
        height: 32px;
        font-size: 14px;
    }
    .category-hero h1 {
        font-size: 26px;
    }
    .feature-card {
        padding: 24px 18px;
    }
    .jump-card {
        padding: 22px 18px;
    }
}

/* roulang page: category2 */
:root {
  --primary: #0f3d2e;
  --neon: #00e57a;
  --neon-soft: rgba(0, 229, 122, 0.15);
  --neon-border: rgba(0, 229, 122, 0.25);
  --orange: #ff7a1a;
  --bg: #0a0f0d;
  --surface-1: #111a17;
  --surface-2: #16211d;
  --text-main: #e8f0ec;
  --text-sub: #9fb3a8;
  --text-dim: #6b7a70;
  --radius-card: 16px;
  --radius-btn: 999px;
  --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.3);
  --shadow-hover: 0 8px 30px rgba(0, 229, 122, 0.08);
  --shadow-neon: 0 0 40px rgba(0, 229, 122, 0.15);
  --space-section: 80px;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  background: var(--bg);
  color: var(--text-main);
  line-height: 1.75;
  font-size: 16px;
}

a { color: var(--neon); text-decoration: none; transition: color 0.25s ease; }
a:hover { color: #fff; }
img { max-width: 100%; height: auto; }
button, input, select, textarea { font-family: inherit; }
.container { max-width: 1200px; }

/* ========== Header / Nav ========== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1040;
  background: rgba(10, 15, 13, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid transparent;
}
.main-nav {
  min-height: 64px;
  padding: 0;
  border-bottom: 1px solid;
  border-image: linear-gradient(90deg, transparent, #00e57a 15%, #ff7a1a 85%, transparent) 1;
}
.main-nav .navbar-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--text-main);
  letter-spacing: 0.3px;
}
.main-nav .navbar-brand:hover { color: var(--neon); }
.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--neon);
  font-size: 14px;
  border: 1px solid var(--neon-border);
  box-shadow: 0 0 14px rgba(0, 229, 122, 0.2);
}
.main-nav .navbar-nav { gap: 4px; }
.main-nav .nav-link {
  color: #cfe3d8;
  font-weight: 500;
  font-size: 15px;
  padding: 8px 16px !important;
  position: relative;
  transition: color 0.25s ease;
}
.main-nav .nav-link::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 2px;
  height: 2px;
  background: var(--neon);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.3s ease;
  box-shadow: 0 8px 16px -8px rgba(0, 229, 122, 0.6);
}
.main-nav .nav-link:hover { color: #fff; }
.main-nav .nav-link:hover::after { transform: scaleX(1); }
.main-nav .nav-link.active { color: var(--neon); }
.main-nav .nav-link.active::after { transform: scaleX(1); }
.btn-neon-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 22px;
  border-radius: var(--radius-btn);
  border: 1.5px solid var(--neon);
  color: var(--neon);
  font-weight: 600;
  font-size: 14px;
  background: transparent;
  transition: all 0.3s ease;
}
.btn-neon-outline:hover {
  background: var(--neon);
  color: #0a0f0d;
  box-shadow: 0 0 24px rgba(0, 229, 122, 0.55);
  transform: translateY(-2px);
}
.navbar-toggler {
  border: 1px solid var(--neon-border);
  padding: 6px 10px;
}
.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%2300e57a' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e") !important;
}
@media (max-width: 991.98px) {
  .main-nav .navbar-collapse {
    background: #0a0f0d;
    border-radius: 0 0 16px 16px;
    padding: 16px;
    margin-top: 8px;
    border: 1px solid var(--neon-border);
  }
  .main-nav .nav-link { padding: 10px 12px !important; }
  .main-nav .nav-link::after { display: none; }
  .main-nav .navbar-nav { gap: 4px; }
  .btn-neon-outline { margin-top: 8px; width: 100%; }
}

/* ========== Page Hero ========== */
.page-hero {
  position: relative;
  padding: 170px 0 80px;
  background: linear-gradient(90deg, rgba(10, 15, 13, 0.96), rgba(10, 15, 13, 0.7)), url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  overflow: hidden;
}
.page-hero .hero-inner { max-width: 780px; }
.page-hero .hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 229, 122, 0.1);
  border: 1px solid var(--neon-border);
  color: var(--neon);
  font-size: 13px;
  font-weight: 500;
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 20px;
  letter-spacing: 0.5px;
}
.page-hero h1 {
  font-size: 48px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.5px;
  margin: 0 0 20px;
  color: var(--text-main);
}
.page-hero h1 .gradient {
  background: linear-gradient(90deg, #00e57a, #00b35f);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.page-hero .lead {
  font-size: 18px;
  color: var(--text-sub);
  margin-bottom: 28px;
  line-height: 1.7;
}
.page-hero .hero-buttons { display: flex; gap: 14px; flex-wrap: wrap; }
.btn-primary-neon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-btn);
  background: var(--neon);
  color: #0a0f0d;
  font-weight: 600;
  font-size: 15px;
  border: 1px solid var(--neon);
  transition: all 0.3s ease;
}
.btn-primary-neon:hover {
  background: transparent;
  color: var(--neon);
  box-shadow: 0 0 24px rgba(0, 229, 122, 0.4);
  transform: translateY(-2px);
}
.btn-outline-white {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-btn);
  background: transparent;
  color: #fff;
  font-weight: 600;
  font-size: 15px;
  border: 1.5px solid rgba(255, 255, 255, 0.6);
  transition: all 0.3s ease;
}
.btn-outline-white:hover {
  border-color: var(--neon);
  color: var(--neon);
  box-shadow: 0 0 18px rgba(0, 229, 122, 0.2);
  transform: translateY(-2px);
}
.hero-stat-bar {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--neon-border);
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
}
.hero-stat-bar .stat-item .stat-num {
  font-size: 28px;
  font-weight: 800;
  color: var(--neon);
  font-family: SF Mono, Consolas, monospace;
  line-height: 1.2;
}
.hero-stat-bar .stat-item .stat-label {
  font-size: 13px;
  color: var(--text-sub);
  letter-spacing: 0.5px;
}
@media (max-width: 768px) {
  .page-hero { padding: 140px 0 56px; }
  .page-hero h1 { font-size: 32px; }
  .page-hero .lead { font-size: 16px; }
  .hero-stat-bar { gap: 24px; }
}

/* ========== Section Common ========== */
.section-block { padding: var(--space-section) 0; }
.section-block.tint { background: var(--surface-1); }
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}
.section-head .title-wrap { display: flex; align-items: center; gap: 14px; }
.section-head .title-line {
  width: 4px;
  height: 28px;
  background: var(--neon);
  border-radius: 4px;
  box-shadow: 0 0 12px rgba(0, 229, 122, 0.5);
}
.section-head h2 {
  font-size: 32px;
  font-weight: 700;
  margin: 0;
  letter-spacing: -0.3px;
}
.section-head p.sub-desc { color: var(--text-sub); margin: 6px 0 0; font-size: 15px; max-width: 640px; }
@media (max-width: 768px) {
  .section-block { --space-section: 48px; }
  .section-head h2 { font-size: 24px; }
}

/* ========== Plan Cards ========== */
.plan-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.plan-card {
  background: var(--surface-1);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-card);
  padding: 32px 28px;
  position: relative;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-card);
}
.plan-card:hover {
  border-color: var(--neon-border);
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}
.plan-card.featured {
  border: 1px solid var(--neon-border);
  box-shadow: 0 0 40px rgba(0, 229, 122, 0.12), var(--shadow-card);
  transform: translateY(-8px);
}
.plan-card.featured:hover { box-shadow: 0 0 50px rgba(0, 229, 122, 0.2), var(--shadow-hover); }
.plan-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  background: var(--orange);
  color: #0a0f0d;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 999px;
  letter-spacing: 0.5px;
}
.plan-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: var(--neon);
  margin-bottom: 20px;
  box-shadow: 0 0 18px rgba(0, 229, 122, 0.2);
  border: 1px solid var(--neon-border);
}
.plan-card h3 { font-size: 22px; font-weight: 700; margin-bottom: 4px; }
.plan-card .plan-sub { color: var(--text-sub); font-size: 14px; margin-bottom: 18px; }
.plan-price { margin-bottom: 22px; }
.plan-price .price {
  font-size: 32px;
  font-weight: 800;
  color: var(--neon);
  font-family: SF Mono, Consolas, monospace;
}
.plan-price .per { font-size: 13px; color: var(--text-dim); margin-left: 4px; }
.plan-list { list-style: none; padding: 0; margin: 0 0 24px; }
.plan-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--text-sub);
  font-size: 14px;
  padding: 6px 0;
  line-height: 1.5;
}
.plan-list li i { color: var(--neon); margin-top: 4px; font-size: 13px; }
.plan-list li.locked i { color: var(--text-dim); }
.plan-card .btn { width: 100%; }
@media (max-width: 991.98px) {
  .plan-cards { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
  .plan-card.featured { transform: none; }
  .plan-card.featured:hover { transform: translateY(-4px); }
}

/* ========== Compare Table ========== */
.compare-wrap { overflow-x: auto; border-radius: var(--radius-card); border: 1px solid var(--neon-border); background: var(--surface-1); }
.compare-table { width: 100%; min-width: 720px; border-collapse: collapse; }
.compare-table thead th { background: var(--primary); color: #fff; font-weight: 600; text-align: center; padding: 16px 18px; border: 1px solid rgba(255, 255, 255, 0.06); }
.compare-table thead th.recommend-col { position: relative; }
.compare-table thead th.recommend-col::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--neon);
  box-shadow: 0 0 10px rgba(0, 229, 122, 0.7);
}
.compare-table thead th .badge-neon {
  display: inline-block;
  background: var(--orange);
  color: #0a0f0d;
  font-size: 12px;
  font-weight: 700;
  padding: 2px 12px;
  border-radius: 999px;
  margin-bottom: 6px;
  letter-spacing: 0.5px;
}
.compare-table tbody td { text-align: center; padding: 14px 18px; color: var(--text-sub); font-size: 14px; border: 1px solid rgba(255, 255, 255, 0.04); }
.compare-table tbody tr:hover td { background: rgba(0, 229, 122, 0.06); }
.compare-table tbody td i { font-size: 15px; }
.compare-table tbody td i.on { color: var(--neon); }
.compare-table tbody td i.off { color: var(--text-dim); opacity: 0.4; }
.compare-table tbody td.highlight { color: var(--neon); font-weight: 600; }
.compare-table tbody tr:last-child td { border-bottom: none; }
@media (max-width: 768px) {
  .compare-wrap { display: none; }
}
/* mobile compare cards */
.mobile-compare-cards { display: none; gap: 20px; flex-direction: column; }
@media (max-width: 768px) {
  .mobile-compare-cards { display: flex; }
}
.mc-card {
  background: var(--surface-1);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-card);
  padding: 24px;
}
.mc-card.featured { border-color: var(--neon-border); box-shadow: 0 0 24px rgba(0, 229, 122, 0.08); }
.mc-card h4 { font-size: 18px; font-weight: 700; margin-bottom: 2px; }
.mc-card .mc-sub { color: var(--text-sub); font-size: 13px; margin-bottom: 14px; }
.mc-card ul { list-style: none; padding: 0; margin: 0 0 16px; }
.mc-card ul li { padding: 4px 0; font-size: 14px; color: var(--text-sub); display: flex; gap: 8px; align-items: center; }
.mc-card ul li i.on { color: var(--neon); }
.mc-card ul li i.off { color: var(--text-dim); opacity: 0.4; }
.mc-card .btn { width: 100%; }

/* ========== Scene Section ========== */
.scene-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; align-items: center; }
.scene-media { border-radius: var(--radius-card); overflow: hidden; border: 1px solid var(--neon-border); box-shadow: var(--shadow-card); }
.scene-media img { width: 100%; display: block; object-fit: cover; }
.scene-content h3 { font-size: 24px; font-weight: 700; margin-bottom: 16px; }
.scene-content p { color: var(--text-sub); font-size: 15px; margin-bottom: 16px; }
.scene-points { list-style: none; padding: 0; margin: 0 0 20px; }
.scene-points li { display: flex; gap: 12px; padding: 8px 0; align-items: flex-start; color: var(--text-main); font-size: 15px; }
.scene-points li i { color: var(--neon); margin-top: 5px; }
.scene-points li .point-title { font-weight: 600; }
.scene-points li .point-desc { color: var(--text-sub); font-size: 14px; }
@media (max-width: 768px) {
  .scene-grid { grid-template-columns: 1fr; }
}

/* ========== Steps ========== */
.steps-wrap { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.step-card {
  background: var(--surface-1);
  border-radius: var(--radius-card);
  padding: 28px 24px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  position: relative;
  transition: all 0.3s ease;
}
.step-card:hover { border-color: var(--neon-border); box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.step-num {
  font-size: 40px;
  font-weight: 800;
  font-family: SF Mono, Consolas, monospace;
  color: rgba(0, 229, 122, 0.25);
  line-height: 1;
  margin-bottom: 16px;
}
.step-card h4 { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.step-card p { color: var(--text-sub); font-size: 14px; margin: 0; line-height: 1.65; }
@media (max-width: 991.98px) {
  .steps-wrap { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 576px) {
  .steps-wrap { grid-template-columns: 1fr; }
}

/* ========== Jump Cards ========== */
.jump-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.jump-card {
  display: flex;
  gap: 16px;
  background: var(--surface-1);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-card);
  padding: 24px 20px;
  transition: all 0.3s ease;
  align-items: flex-start;
}
.jump-card:hover {
  border-color: var(--neon-border);
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}
.jump-icon {
  flex-shrink: 0;
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: var(--primary);
  border: 1px solid var(--neon-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--neon);
  font-size: 18px;
}
.jump-card h4 { font-size: 17px; font-weight: 700; margin-bottom: 6px; }
.jump-card p { color: var(--text-sub); font-size: 13px; margin: 0; line-height: 1.6; }
.jump-card .go-link { color: var(--neon); font-size: 13px; font-weight: 600; margin-top: 8px; display: inline-flex; align-items: center; gap: 6px; }
.jump-card .go-link i { transition: transform 0.2s ease; }
.jump-card:hover .go-link i { transform: translateX(4px); }
@media (max-width: 991.98px) {
  .jump-grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
}
@media (max-width: 576px) {
  .jump-grid { grid-template-columns: 1fr; }
}

/* ========== FAQ ========== */
.faq-list { max-width: 820px; margin: 0 auto; }
.faq-item {
  background: var(--surface-1);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 12px;
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color 0.3s ease;
}
.faq-item.active { border-color: var(--neon-border); }
.faq-item .faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 20px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  position: relative;
  transition: color 0.3s ease;
}
.faq-item.active .faq-question { color: var(--neon); }
.faq-item.active .faq-question::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--neon);
  box-shadow: 0 0 12px rgba(0, 229, 122, 0.6);
}
.faq-item .faq-question .icon {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--text-sub);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}
.faq-item.active .faq-question .icon { transform: rotate(45deg); color: var(--neon); }
.faq-item .faq-answer { padding: 0 20px 18px; color: var(--text-sub); font-size: 14px; line-height: 1.75; }

/* ========== CTA ========== */
.cta-section { padding: var(--space-section) 0; }
.cta-box {
  background: var(--primary);
  border-radius: 20px;
  padding: 56px 48px;
  text-align: center;
  position: relative;
  border: 1px solid rgba(0, 229, 122, 0.3);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08), 0 0 60px rgba(0, 229, 122, 0.06);
  max-width: 1000px;
  margin: 0 auto;
}
.cta-box h2 { font-size: 30px; font-weight: 700; color: #fff; margin-bottom: 12px; }
.cta-box .cta-sub { color: #cfe3d8; font-size: 15px; margin-bottom: 30px; }
.btn-cta-large {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--neon);
  color: #0a0f0d;
  font-weight: 700;
  font-size: 17px;
  padding: 14px 42px;
  border-radius: 999px;
  border: 1px solid var(--neon);
  transition: all 0.3s ease;
  box-shadow: 0 0 24px rgba(0, 229, 122, 0.25);
}
.btn-cta-large:hover {
  background: transparent;
  color: var(--neon);
  box-shadow: 0 0 40px rgba(0, 229, 122, 0.5);
  transform: translateY(-3px);
}
@media (max-width: 768px) {
  .cta-box { padding: 40px 20px; }
  .cta-box h2 { font-size: 24px; }
  .btn-cta-large { width: 100%; justify-content: center; }
}

/* ========== Footer ========== */
.site-footer {
  background: #070a08;
  border-top: 1px solid var(--neon-border);
  padding: 64px 0 24px;
  margin-top: 0;
}
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--text-main);
  margin-bottom: 14px;
}
.footer-brand:hover { color: var(--neon); }
.footer-desc { color: var(--text-sub); font-size: 14px; line-height: 1.7; margin-bottom: 0; }
.footer-title { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 18px; }
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: var(--text-sub); font-size: 14px; transition: all 0.25s ease; }
.footer-links a:hover { color: var(--neon); text-decoration: underline; text-underline-offset: 4px; }
.footer-contact li { color: var(--text-sub); font-size: 14px; display: flex; align-items: center; gap: 10px; }
.footer-contact li i { color: var(--neon); width: 16px; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  margin-top: 48px;
  padding-top: 20px;
  text-align: center;
}
.footer-bottom p { color: var(--text-dim); font-size: 13px; margin: 0; }
@media (max-width: 768px) {
  .site-footer { padding: 48px 0 24px; }
}

/* ========== Utility ========== */
.text-neon { color: var(--neon); }
.bg-surface { background: var(--surface-1); }
.mt-40 { margin-top: 40px; }

/* focus accessibility */
a:focus-visible, button:focus-visible, .nav-link:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 3px;
  border-radius: 4px;
}

/* roulang page: article */
:root{
  --primary:#0f3d2e;
  --neon:#00e57a;
  --accent:#ff7a1a;
  --bg:#0a0f0d;
  --card:#111a17;
  --card-2:#16211d;
  --text:#e8f0ec;
  --text-sub:#9fb3a8;
  --text-muted:#6b7a70;
  --border:rgba(0,229,122,0.15);
  --radius:16px;
  --radius-sm:10px;
  --radius-pill:999px;
  --shadow:0 4px 20px rgba(0,0,0,0.3);
  --shadow-hover:0 8px 30px rgba(0,229,122,0.08);
  --glow:0 0 40px rgba(0,229,122,0.15);
  --transition:all 0.3s ease;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'PingFang SC','Microsoft YaHei','Noto Sans CJK SC',sans-serif;background:var(--bg);color:var(--text);line-height:1.75;font-size:16px;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:var(--neon);text-decoration:none;transition:var(--transition)}
a:hover{color:#4dff9e}
ul,ol{list-style-position:inside}
.container{max-width:1240px}
.btn{border-radius:var(--radius-pill);font-weight:600;transition:var(--transition);border:1.5px solid transparent}
.btn:focus{box-shadow:0 0 0 4px rgba(0,229,122,0.15);outline:none}
.btn-neon{background:var(--neon);color:#0a0f0d;border-color:var(--neon);padding:10px 30px}
.btn-neon:hover{color:#0a0f0d;background:#4dff9e;border-color:#4dff9e;transform:translateY(-2px);box-shadow:0 0 24px rgba(0,229,122,0.55)}
.btn-neon-outline{border-color:var(--neon);color:var(--neon);background:transparent;padding:10px 30px}
.btn-neon-outline:hover{background:var(--neon);color:#0a0f0d;transform:translateY(-2px);box-shadow:0 0 24px rgba(0,229,122,0.55)}
.btn-white-outline{border-color:rgba(255,255,255,0.5);color:#fff;background:transparent;padding:10px 30px}
.btn-white-outline:hover{border-color:var(--neon);color:var(--neon);transform:translateY(-2px)}
.reading-progress{position:fixed;top:64px;left:0;right:0;height:3px;z-index:2000;background:transparent;pointer-events:none}
.reading-progress-bar{height:100%;width:0;background:linear-gradient(90deg,var(--neon),var(--accent));box-shadow:0 0 12px rgba(0,229,122,0.5);transition:width 0.1s linear}
.site-header{position:fixed;top:0;left:0;right:0;z-index:1500;background:rgba(10,15,13,0.92);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.site-header::after{content:'';position:absolute;bottom:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--neon) 15%,var(--accent) 85%,transparent)}
.main-nav{padding:0;min-height:64px}
.navbar-brand{display:flex;align-items:center;gap:10px;color:var(--text)!important;font-weight:800;font-size:18px;letter-spacing:0.3px}
.navbar-brand:hover{color:var(--neon)!important}
.brand-mark{width:36px;height:36px;border-radius:50%;background:var(--primary);display:flex;align-items:center;justify-content:center;color:var(--neon);border:1px solid rgba(0,229,122,0.3);box-shadow:0 0 14px rgba(0,229,122,0.2);font-size:14px;flex-shrink:0}
.navbar-nav{gap:2px}
.nav-link{color:#cfe3d8!important;font-weight:500;position:relative;padding:22px 16px!important;font-size:15px;transition:color 0.3s;white-space:nowrap}
.nav-link::after{content:'';position:absolute;bottom:8px;left:16px;right:16px;height:2px;background:var(--neon);border-radius:2px;transform:scaleX(0);transition:transform 0.3s,box-shadow 0.3s}
.nav-link:hover{color:#fff!important}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--neon)!important}
.nav-link.active::after{transform:scaleX(1);box-shadow:0 8px 16px -8px rgba(0,229,122,0.6)}
.navbar-toggler{border:1px solid rgba(0,229,122,0.3);border-radius:var(--radius-sm);padding:6px 10px}
.navbar-toggler:focus{box-shadow:0 0 0 4px rgba(0,229,122,0.1);outline:none}
.navbar-toggler-icon{background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%2300e57a' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");width:1.3em;height:1.3em}
.article-page-head{padding:140px 0 48px;background:linear-gradient(135deg,rgba(10,15,13,0.95) 0%,rgba(10,15,13,0.82) 100%),url('/assets/images/backpic/back-2.webp') center/cover no-repeat;border-bottom:1px solid var(--border)}
.article-page-head.is-empty{padding:120px 0 40px}
.breadcrumb-nav{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:14px;margin-bottom:28px;color:var(--text-muted)}
.breadcrumb-nav a{color:var(--text-sub);text-decoration:none;display:inline-flex;align-items:center;gap:6px}
.breadcrumb-nav a:hover{color:var(--neon)}
.breadcrumb-nav .sep{color:var(--text-muted);font-size:12px}
.breadcrumb-nav .current{color:var(--text);max-width:280px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:inline-block;vertical-align:bottom}
.article-title{font-size:40px;font-weight:700;line-height:1.3;letter-spacing:-0.5px;color:var(--text);margin-bottom:20px;max-width:820px}
.article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:22px;font-size:14px;color:var(--text-sub)}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:8px}
.article-meta .meta-item i{color:var(--neon)}
.article-meta .meta-cat{background:rgba(0,229,122,0.12);border:1px solid rgba(0,229,122,0.3);color:var(--neon);padding:3px 14px;border-radius:99px;font-size:13px}
.article-meta .meta-hot{color:var(--accent);display:inline-flex;align-items:center;gap:6px}
.article-content-wrap{padding:56px 0 48px}
.article-body{max-width:780px;margin:0 auto}
.article-main{border-top:1px solid var(--border);padding-top:36px}
.article-main p{font-size:17px;line-height:1.75;color:var(--text);margin-bottom:24px}
.article-main p:first-of-type{font-size:19px;color:var(--text-sub);line-height:1.8}
.article-main h1,.article-main h2,.article-main h3,.article-main h4,.article-main h5{color:var(--text);font-weight:700;margin-top:48px;margin-bottom:20px;line-height:1.4;letter-spacing:-0.3px}
.article-main h2{font-size:30px;padding-left:14px;border-left:4px solid var(--neon);background:linear-gradient(90deg,rgba(0,229,122,0.06),transparent)}
.article-main h3{font-size:24px;padding-left:12px;border-left:3px solid var(--accent)}
.article-main h4{font-size:20px}
.article-main img{border-radius:12px;margin:24px auto;box-shadow:var(--shadow)}
.article-main figure{margin:32px 0}
.article-main figcaption{text-align:center;color:var(--text-muted);font-size:13px;margin-top:8px}
.article-main blockquote{border-left:4px solid var(--neon);background:rgba(0,229,122,0.05);padding:20px 24px;margin:32px 0;border-radius:0 12px 12px 0;color:var(--text-sub)}
.article-main blockquote p{margin-bottom:0;color:var(--text-sub)}
.article-main ul,.article-main ol{margin:24px 0;padding-left:24px}
.article-main li{margin-bottom:10px;color:var(--text);padding-left:4px}
.article-main ul li::marker{color:var(--neon)}
.article-main ol li::marker{color:var(--neon);font-weight:600}
.article-main a{color:var(--neon);text-decoration:underline;text-underline-offset:3px}
.article-main a:hover{color:#4dff9e;text-decoration:none}
.article-main table{width:100%;border-collapse:collapse;margin:32px 0;border-radius:12px;overflow:hidden}
.article-main th,.article-main td{padding:12px 16px;border:1px solid var(--border);text-align:left;font-size:15px}
.article-main th{background:var(--primary);color:var(--text);font-weight:600}
.article-main td{background:rgba(17,26,23,0.6)}
.article-main code{background:var(--card-2);padding:2px 8px;border-radius:4px;font-size:14px;color:var(--neon)}
.article-main pre{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:20px;overflow-x:auto;margin:32px 0}
.article-main pre code{background:transparent;padding:0;color:var(--text)}
.not-found{text-align:center;padding:80px 20px;max-width:560px;margin:0 auto}
.not-found .not-found-icon{font-size:52px;color:var(--neon);margin-bottom:24px;opacity:0.8}
.not-found h1{font-size:32px;font-weight:700;color:var(--text);margin-bottom:12px}
.not-found p{color:var(--text-sub);font-size:16px;margin-bottom:32px}
.related-section{padding:56px 0 48px;background:rgba(17,26,23,0.35)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;flex-wrap:wrap;gap:12px;margin-bottom:36px}
.section-head h2{font-size:28px;font-weight:700;color:var(--text);position:relative;padding-left:14px;line-height:1.4}
.section-head h2::before{content:'';position:absolute;left:0;top:4px;bottom:4px;width:4px;border-radius:2px;background:linear-gradient(180deg,var(--neon),var(--accent))}
.section-head .section-sub{color:var(--text-muted);font-size:14px;margin:0}
.related-card{display:block;background:var(--card);border:1px solid transparent;border-radius:var(--radius);overflow:hidden;height:100%;transition:var(--transition)}
.related-card:hover{border-color:var(--border);box-shadow:var(--shadow-hover);transform:translateY(-4px)}
.related-thumb{height:160px;overflow:hidden;background:var(--card-2);position:relative}
.related-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 0.4s ease}
.related-card:hover .related-thumb img{transform:scale(1.05)}
.related-body{padding:20px}
.related-body h3{font-size:17px;font-weight:600;color:var(--text);margin-bottom:8px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color 0.3s}
.related-card:hover .related-body h3{color:var(--neon)}
.related-body p{font-size:13px;color:var(--text-sub);margin-bottom:12px;line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.related-date{font-size:12px;color:var(--text-muted);display:flex;align-items:center;gap:6px}
.related-date i{color:var(--neon)}
.back-section{padding:48px 0 80px}
.back-box{background:var(--primary);border:1px solid rgba(0,229,122,0.3);border-radius:20px;padding:48px 40px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;position:relative;box-shadow:var(--shadow)}
.back-box::before{content:'';position:absolute;inset:0;border:1px solid rgba(255,255,255,0.08);border-radius:20px;pointer-events:none}
.back-info h2{font-size:28px;font-weight:700;color:var(--text);margin-bottom:8px}
.back-info p{color:var(--text-sub);font-size:14px;margin:0}
.back-actions{display:flex;gap:12px;flex-wrap:wrap}
.site-footer{background:#070a08;border-top:1px solid var(--border);padding:64px 0 0;margin-top:24px}
.footer-brand{display:flex;align-items:center;gap:10px;color:var(--text);font-weight:800;font-size:18px;margin-bottom:16px}
.footer-brand:hover{color:var(--neon)}
.footer-desc{color:var(--text-sub);font-size:14px;line-height:1.8;margin-bottom:24px;max-width:320px}
.footer-title{font-size:16px;font-weight:600;color:var(--text);margin-bottom:18px;position:relative;padding-bottom:10px}
.footer-title::after{content:'';position:absolute;bottom:0;left:0;width:28px;height:2px;background:var(--neon);border-radius:2px}
.footer-links{list-style:none;padding:0;margin:0}
.footer-links li{margin-bottom:10px}
.footer-links a{color:var(--text-sub);font-size:14px;text-decoration:none;transition:all 0.3s}
.footer-links a:hover{color:var(--neon);padding-left:4px}
.footer-contact li{color:var(--text-sub);font-size:14px;display:flex;align-items:center;gap:8px}
.footer-contact i{color:var(--neon);width:16px;text-align:center}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.06);padding:20px 0;margin-top:48px;text-align:center}
.footer-bottom p{color:var(--text-muted);font-size:13px;margin:0}
@media (max-width: 991.98px){
  .navbar-collapse{background:#0a0f0d;border-radius:12px;padding:12px;margin-top:10px;border:1px solid var(--border);max-height:70vh;overflow-y:auto}
  .nav-link{padding:14px 16px!important}
  .nav-link::after{display:none}
  .navbar-nav .btn-neon-outline{margin:8px 0 4px;text-align:center}
  .article-title{font-size:32px}
  .article-page-head{padding:110px 0 36px}
  .back-box{padding:36px 24px}
}
@media (max-width: 767.98px){
  .article-title{font-size:28px}
  .article-meta{gap:14px}
  .article-main p{font-size:16px}
  .section-head h2{font-size:24px}
  .back-box{flex-direction:column;text-align:center}
  .back-actions{justify-content:center}
  .footer-bottom p{font-size:12px}
}
@media (max-width: 575.98px){
  .article-page-head{padding:96px 0 28px}
  .article-content-wrap{padding:32px 0}
  .article-title{font-size:24px;line-height:1.4}
  .article-meta{font-size:13px;gap:10px}
  .breadcrumb-nav .current{max-width:160px}
  .related-body{padding:16px}
  .related-thumb{height:130px}
  .back-box{padding:28px 20px}
  .back-info h2{font-size:24px}
}

/* roulang page: category4 */
:root {
            --primary: #0f3d2e;
            --neon: #00e57a;
            --accent: #ff7a1a;
            --bg: #0a0f0d;
            --surface: #111a17;
            --surface-light: #16211d;
            --text-main: #e8f0ec;
            --text-sub: #9fb3a8;
            --text-muted: #6b7a70;
            --border: rgba(0, 229, 122, 0.15);
            --radius: 16px;
            --radius-sm: 12px;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
            --shadow-hover: 0 8px 30px rgba(0, 229, 122, 0.08);
            --neon-glow: 0 0 40px rgba(0, 229, 122, 0.15);
            --spacing-section: 80px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', sans-serif;
            background-color: var(--bg);
            color: var(--text-main);
            line-height: 1.75;
            overflow-x: hidden;
        }

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

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

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

        button,
        input {
            font-family: inherit;
        }

        .container {
            max-width: 1200px;
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(10, 15, 13, 0.92);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border-bottom: 1px solid transparent;
            background-image: linear-gradient(90deg, transparent, rgba(0, 229, 122, 0.15) 15%, rgba(255, 122, 26, 0.15) 85%, transparent);
            background-size: 100% 1px;
            background-position: bottom;
            background-repeat: no-repeat;
        }

        .main-nav {
            min-height: 64px;
            padding-top: 0;
            padding-bottom: 0;
        }

        .main-nav .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.2rem;
            color: var(--text-main);
            padding-top: 0;
            padding-bottom: 0;
        }

        .main-nav .navbar-brand:hover {
            color: var(--neon);
        }

        .brand-mark {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--neon);
            font-size: 0.95rem;
            border: 1px solid rgba(0, 229, 122, 0.4);
            box-shadow: 0 0 16px rgba(0, 229, 122, 0.2);
        }

        .main-nav .navbar-nav {
            gap: 4px;
        }

        .main-nav .nav-link {
            color: #cfe3d8;
            font-size: 0.95rem;
            font-weight: 500;
            padding: 8px 14px;
            border-radius: 6px;
            position: relative;
            transition: color 0.25s ease;
        }

        .main-nav .nav-link::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%) scaleX(0);
            width: 60%;
            height: 2px;
            background: var(--neon);
            border-radius: 2px;
            transition: transform 0.3s ease;
        }

        .main-nav .nav-link:hover {
            color: #ffffff;
        }

        .main-nav .nav-link:hover::after {
            transform: translateX(-50%) scaleX(1);
        }

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

        .main-nav .nav-link.active::after {
            transform: translateX(-50%) scaleX(1);
            box-shadow: 0 8px 16px -8px rgba(0, 229, 122, 0.6);
        }

        .btn-neon-outline {
            background: transparent;
            border: 1.5px solid var(--neon);
            color: var(--neon);
            border-radius: 999px;
            padding: 8px 24px;
            font-weight: 600;
            font-size: 0.9rem;
            transition: all 0.25s ease;
        }

        .btn-neon-outline:hover {
            background: var(--neon);
            color: #0a0f0d;
            box-shadow: 0 0 24px rgba(0, 229, 122, 0.55);
            transform: translateY(-2px);
        }

        .btn-neon-solid {
            background: var(--neon);
            border: 1.5px solid var(--neon);
            color: #0a0f0d;
            border-radius: 999px;
            padding: 10px 28px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all 0.25s ease;
        }

        .btn-neon-solid:hover {
            background: var(--neon);
            color: #0a0f0d;
            box-shadow: 0 0 30px rgba(0, 229, 122, 0.6);
            transform: translateY(-2px);
        }

        .btn-outline-light-custom {
            background: transparent;
            border: 1.5px solid rgba(255, 255, 255, 0.5);
            color: #ffffff;
            border-radius: 999px;
            padding: 8px 24px;
            font-weight: 500;
            font-size: 0.9rem;
            transition: all 0.25s ease;
        }

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

        .navbar-toggler {
            border: 1px solid rgba(0, 229, 122, 0.3);
            padding: 4px 10px;
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(0, 229, 122, 0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        .site-footer {
            background: #070a08;
            border-top: 1px solid transparent;
            background-image: linear-gradient(90deg, transparent, rgba(0, 229, 122, 0.2) 15%, rgba(255, 122, 26, 0.2) 85%, transparent);
            background-size: 100% 1px;
            background-position: top;
            background-repeat: no-repeat;
            padding: 56px 0 24px;
            margin-top: 80px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.1rem;
            color: var(--text-main);
        }

        .footer-brand:hover {
            color: var(--neon);
        }

        .footer-desc {
            color: var(--text-sub);
            font-size: 0.9rem;
            margin-top: 14px;
            line-height: 1.7;
            max-width: 340px;
        }

        .footer-title {
            color: var(--text-main);
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 16px;
            position: relative;
            padding-bottom: 8px;
        }

        .footer-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 24px;
            height: 2px;
            background: var(--neon);
            border-radius: 2px;
        }

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

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

        .footer-links a {
            color: var(--text-sub);
            font-size: 0.9rem;
            transition: color 0.25s ease;
        }

        .footer-links a:hover {
            color: var(--neon);
            text-decoration: underline;
            text-underline-offset: 4px;
        }

        .footer-contact li {
            color: var(--text-sub);
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-contact i {
            color: var(--neon);
            width: 16px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 24px;
            margin-top: 40px;
            text-align: center;
        }

        .footer-bottom p {
            color: var(--text-muted);
            font-size: 0.85rem;
            margin: 0;
        }

        /* ===== Category Hero ===== */
        .category-hero {
            padding: 160px 0 80px;
            position: relative;
            background: linear-gradient(90deg, rgba(10, 15, 13, 0.95), rgba(10, 15, 13, 0.65)), url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            border-bottom: 1px solid var(--border);
        }

        .category-hero .hero-subtitle {
            color: var(--accent);
            font-size: 0.9rem;
            font-weight: 600;
            letter-spacing: 2px;
            text-transform: uppercase;
            margin-bottom: 12px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .category-hero .hero-subtitle::before {
            content: '';
            width: 24px;
            height: 2px;
            background: var(--accent);
            display: inline-block;
        }

        .category-hero h1 {
            font-size: 3rem;
            font-weight: 700;
            letter-spacing: -0.5px;
            line-height: 1.2;
            margin-bottom: 16px;
            color: var(--text-main);
        }

        .category-hero h1 .gradient-text {
            background: linear-gradient(135deg, #00e57a, #00a05a);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .category-hero .hero-desc {
            color: var(--text-sub);
            font-size: 1.05rem;
            max-width: 560px;
            line-height: 1.8;
        }

        .category-hero .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 32px;
        }

        .category-hero .stat-item {
            border-left: 2px solid var(--neon);
            padding-left: 16px;
        }

        .category-hero .stat-item .stat-num {
            font-family: 'SF Mono', 'Consolas', monospace;
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--neon);
            line-height: 1.2;
        }

        .category-hero .stat-item .stat-label {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* ===== Video Feature Section ===== */
        .feature-section {
            padding: var(--spacing-section) 0;
        }

        .section-header {
            margin-bottom: 40px;
        }

        .section-header .section-tag {
            color: var(--accent);
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 1px;
            text-transform: uppercase;
            display: inline-block;
            margin-bottom: 8px;
        }

        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--text-main);
            position: relative;
            padding-left: 18px;
            letter-spacing: -0.3px;
        }

        .section-header h2::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 28px;
            background: var(--neon);
            border-radius: 4px;
            box-shadow: 0 0 12px rgba(0, 229, 122, 0.4);
        }

        /* Video Feature Cards */
        .video-feature-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px 24px;
            height: 100%;
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }

        .video-feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover), var(--neon-glow);
            border-color: rgba(0, 229, 122, 0.4);
        }

        .video-feature-card .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--neon);
            margin-bottom: 20px;
            border: 1px solid rgba(0, 229, 122, 0.25);
            box-shadow: 0 0 20px rgba(0, 229, 122, 0.1);
        }

        .video-feature-card h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 12px;
        }

        .video-feature-card p {
            color: var(--text-sub);
            font-size: 0.9rem;
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== Video Content Gallery ===== */
        .content-gallery {
            padding: 0 0 var(--spacing-section);
        }

        .video-item-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            height: 100%;
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }

        .video-item-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(0, 229, 122, 0.4);
        }

        .video-item-card .video-thumb {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/9;
        }

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

        .video-item-card:hover .video-thumb img {
            transform: scale(1.04);
        }

        .video-item-card .video-thumb .play-btn {
            position: absolute;
            inset: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(10, 15, 13, 0.4);
            transition: background 0.3s ease;
        }

        .video-item-card:hover .video-thumb .play-btn {
            background: rgba(10, 15, 13, 0.2);
        }

        .video-item-card .video-thumb .play-btn i {
            width: 52px;
            height: 52px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(0, 229, 122, 0.85);
            color: #0a0f0d;
            font-size: 1.1rem;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .video-item-card:hover .video-thumb .play-btn i {
            transform: scale(1.1);
            box-shadow: 0 0 30px rgba(0, 229, 122, 0.6);
        }

        .video-item-card .video-info {
            padding: 20px;
        }

        .video-item-card .video-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 500;
            color: var(--neon);
            background: rgba(0, 229, 122, 0.1);
            border: 1px solid rgba(0, 229, 122, 0.25);
            border-radius: 999px;
            padding: 3px 12px;
            margin-bottom: 12px;
        }

        .video-item-card .video-title {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.4;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .video-item-card .video-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            color: var(--text-muted);
            font-size: 0.8rem;
            flex-wrap: wrap;
        }

        .video-item-card .video-meta i {
            color: var(--neon);
            margin-right: 4px;
        }

        .video-item-card .locked-badge {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 600;
            border-radius: 4px;
            padding: 2px 8px;
            margin-left: 8px;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            padding: 0 0 var(--spacing-section);
        }

        .cta-box {
            background: var(--primary);
            border-radius: 20px;
            padding: 56px 40px;
            position: relative;
            border: 1px solid rgba(0, 229, 122, 0.3);
            box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
            text-align: center;
        }

        .cta-box h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 12px;
        }

        .cta-box p {
            color: #cfe3d8;
            font-size: 0.95rem;
            max-width: 560px;
            margin: 0 auto 28px;
        }

        .cta-box .btn-cta-big {
            background: var(--neon);
            color: #0a0f0d;
            border: none;
            border-radius: 999px;
            padding: 14px 40px;
            font-size: 1rem;
            font-weight: 700;
            transition: all 0.3s ease;
            display: inline-block;
        }

        .cta-box .btn-cta-big:hover {
            box-shadow: 0 0 40px rgba(0, 229, 122, 0.5);
            transform: translateY(-2px) scale(1.02);
            color: #0a0f0d;
        }

        /* ===== FAQ Section ===== */
        .faq-section {
            padding: 0 0 var(--spacing-section);
        }

        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            margin-bottom: 14px;
            overflow: hidden;
            transition: border-color 0.3s ease;
        }

        .faq-item.is-active {
            border-color: rgba(0, 229, 122, 0.4);
        }

        .faq-question {
            width: 100%;
            background: transparent;
            border: none;
            padding: 20px 24px;
            color: var(--text-main);
            font-size: 1rem;
            font-weight: 600;
            text-align: left;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
        }

        .faq-question .faq-icon {
            width: 28px;
            height: 28px;
            min-width: 28px;
            border-radius: 50%;
            background: rgba(0, 229, 122, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: transform 0.3s ease, background 0.3s ease;
            margin-left: 16px;
        }

        .faq-question .faq-icon i {
            color: var(--neon);
            font-size: 0.8rem;
            transition: transform 0.3s ease;
        }

        .faq-question[aria-expanded="true"] .faq-icon {
            transform: rotate(45deg);
            background: var(--neon);
        }

        .faq-question[aria-expanded="true"] .faq-icon i {
            color: #0a0f0d;
        }

        .faq-answer {
            padding: 0 24px 20px;
            color: var(--text-sub);
            font-size: 0.9rem;
            line-height: 1.8;
            border-left: 3px solid var(--neon);
            margin: 0 0 0 24px;
        }

        /* ===== Related Cards ===== */
        .related-section {
            padding: 0 0 var(--spacing-section);
        }

        .jump-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px 24px;
            height: 100%;
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
            display: block;
        }

        .jump-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(0, 229, 122, 0.4);
        }

        .jump-card .jump-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--neon);
            margin-bottom: 16px;
            border: 1px solid rgba(0, 229, 122, 0.2);
        }

        .jump-card h3 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 8px;
        }

        .jump-card p {
            color: var(--text-sub);
            font-size: 0.85rem;
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* ===== Responsive ===== */
        @media (max-width: 992px) {
            :root {
                --spacing-section: 60px;
            }

            .main-nav .navbar-collapse {
                background: #0a0f0d;
                padding: 16px;
                border-radius: 12px;
                margin-top: 8px;
                border: 1px solid var(--border);
            }

            .main-nav .navbar-nav {
                gap: 0;
            }

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

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

            .main-nav .nav-link.active {
                background: rgba(0, 229, 122, 0.1);
                border-radius: 8px;
            }

            .category-hero {
                padding: 120px 0 60px;
            }

            .category-hero h1 {
                font-size: 2.4rem;
            }

            .category-hero .hero-stats {
                gap: 24px;
                flex-wrap: wrap;
            }
        }

        @media (max-width: 768px) {
            :root {
                --spacing-section: 48px;
            }

            .category-hero {
                padding: 110px 0 48px;
            }

            .category-hero h1 {
                font-size: 2rem;
            }

            .category-hero .hero-desc {
                font-size: 0.95rem;
            }

            .category-hero .stat-item {
                border-left-width: 2px;
                padding-left: 12px;
            }

            .category-hero .stat-item .stat-num {
                font-size: 1.2rem;
            }

            .section-header h2 {
                font-size: 1.7rem;
            }

            .cta-box {
                padding: 40px 24px;
            }

            .cta-box h2 {
                font-size: 1.5rem;
            }

            .video-feature-card {
                padding: 20px;
            }

            .footer-contact li {
                font-size: 0.85rem;
            }
        }

        @media (max-width: 576px) {
            .category-hero h1 {
                font-size: 1.75rem;
            }

            .category-hero .hero-stats {
                flex-direction: column;
                gap: 16px;
            }

            .category-hero .stat-item {
                border-left-color: var(--neon);
            }

            .section-header h2 {
                font-size: 1.4rem;
            }

            .cta-box h2 {
                font-size: 1.3rem;
            }

            .cta-box .btn-cta-big {
                padding: 12px 32px;
                font-size: 0.9rem;
            }

            .faq-question {
                font-size: 0.9rem;
                padding: 16px 18px;
            }

            .faq-answer {
                padding: 0 16px 16px;
                margin-left: 12px;
            }

            .jump-card {
                padding: 20px 16px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #0f3d2e;
            --neon: #00e57a;
            --accent: #ff7a1a;
            --bg-dark: #0a0f0d;
            --surface-1: #111a17;
            --surface-2: #16211d;
            --text-main: #e8f0ec;
            --text-sub: #9fb3a8;
            --text-muted: #6b7a70;
            --border-neon: rgba(0, 229, 122, 0.15);
            --radius-card: 16px;
            --radius-btn: 999px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.3);
            --shadow-hover: 0 8px 30px rgba(0, 229, 122, 0.08);
            --shadow-neon: 0 0 40px rgba(0, 229, 122, 0.15);
            --space-section: 80px;
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-main);
            background-color: var(--bg-dark);
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            border-radius: 12px;
        }
        a {
            color: var(--neon);
            text-decoration: none;
            transition: color .2s;
        }
        a:hover,
        a:focus {
            color: #fff;
        }
        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }
        .btn {
            border-radius: var(--radius-btn);
            font-weight: 600;
            padding: 11px 28px;
            font-size: 15px;
            transition: all .25s ease;
            border: 1.5px solid transparent;
        }
        .btn:focus {
            box-shadow: 0 0 0 4px rgba(0, 229, 122, 0.15);
            outline: none;
        }
        .btn-neon {
            background: var(--neon);
            color: #08120d;
            border-color: var(--neon);
            font-weight: 700;
        }
        .btn-neon:hover {
            background: #2dff92;
            border-color: #2dff92;
            color: #08120d;
            transform: translateY(-2px);
            box-shadow: 0 0 24px rgba(0, 229, 122, 0.55);
        }
        .btn-neon-outline {
            background: transparent;
            color: var(--neon);
            border-color: var(--neon);
        }
        .btn-neon-outline:hover {
            background: var(--neon);
            color: #08120d;
            border-color: var(--neon);
            box-shadow: 0 0 20px rgba(0, 229, 122, 0.4);
            transform: translateY(-2px);
        }
        .btn-light-outline {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, 0.7);
        }
        .btn-light-outline:hover {
            border-color: var(--neon);
            color: var(--neon);
            background: rgba(0, 229, 122, 0.08);
        }

        /* Header */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: rgba(10, 15, 13, 0.92);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border-bottom: 1px solid transparent;
            background-image: linear-gradient(90deg, transparent, rgba(0, 229, 122, 0.7), rgba(255, 122, 26, 0.5), transparent);
            background-size: 100% 1px;
            background-position: bottom;
            background-repeat: no-repeat;
        }
        .main-nav {
            min-height: 64px;
            padding-top: 0;
            padding-bottom: 0;
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 19px;
            color: var(--text-main);
            letter-spacing: -0.2px;
        }
        .navbar-brand:hover,
        .navbar-brand:focus {
            color: var(--neon);
        }
        .brand-mark {
            width: 36px;
            height: 36px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--primary);
            color: var(--neon);
            font-size: 16px;
            border: 1px solid rgba(0, 229, 122, 0.35);
            box-shadow: 0 0 18px rgba(0, 229, 122, 0.25);
        }
        .navbar-nav .nav-link {
            color: #cfe3d8;
            font-weight: 500;
            font-size: 15px;
            padding: 20px 12px 18px !important;
            margin: 0 4px;
            position: relative;
            transition: color .2s;
        }
        .navbar-nav .nav-link::after {
            content: "";
            position: absolute;
            left: 50%;
            bottom: 10px;
            width: 0;
            height: 2px;
            background: var(--neon);
            transform: translateX(-50%);
            transition: width .25s;
            box-shadow: 0 8px 16px -6px rgba(0, 229, 122, 0.8);
        }
        .navbar-nav .nav-link:hover {
            color: #fff;
        }
        .navbar-nav .nav-link:hover::after {
            width: 22px;
        }
        .navbar-nav .nav-link.active {
            color: var(--neon);
            font-weight: 600;
        }
        .navbar-nav .nav-link.active::after {
            width: 26px;
        }
        .navbar-toggler {
            border: 1px solid rgba(0, 229, 122, 0.3);
            padding: 6px 10px;
            border-radius: 8px;
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 4px rgba(0, 229, 122, 0.12);
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(0,229,122,0.9)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* Section title */
        .section-head {
            margin-bottom: 42px;
        }
        .section-title {
            font-size: 34px;
            font-weight: 700;
            letter-spacing: -0.5px;
            margin-bottom: 12px;
            position: relative;
            padding-left: 18px;
            line-height: 1.35;
        }
        .section-title::before {
            content: "";
            position: absolute;
            left: 0;
            top: 8px;
            bottom: 8px;
            width: 4px;
            background: var(--neon);
            border-radius: 4px;
            box-shadow: 0 0 16px rgba(0, 229, 122, 0.4);
        }
        .section-desc {
            color: var(--text-sub);
            font-size: 16px;
            max-width: 640px;
        }

        /* Category hero */
        .cat-hero {
            padding: 160px 0 80px;
            background: linear-gradient(90deg, rgba(10, 15, 13, 0.96), rgba(10, 15, 13, 0.72)), url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
            border-bottom: 1px solid var(--border-neon);
        }
        .cat-hero .tagline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(0, 229, 122, 0.1);
            border: 1px solid rgba(0, 229, 122, 0.3);
            color: var(--neon);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: var(--radius-btn);
            letter-spacing: 0.5px;
            margin-bottom: 20px;
        }
        .cat-hero h1 {
            font-size: 52px;
            font-weight: 800;
            letter-spacing: -0.8px;
            line-height: 1.15;
            margin-bottom: 18px;
        }
        .cat-hero h1 .brand-grad {
            background: linear-gradient(135deg, #00e57a, #37f5a2);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            color: transparent;
        }
        .cat-hero .lead-text {
            font-size: 18px;
            color: var(--text-sub);
            max-width: 540px;
            margin-bottom: 30px;
        }
        .hero-data-row {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            margin-top: 42px;
            padding-top: 24px;
            border-top: 1px solid rgba(0, 229, 122, 0.2);
            max-width: 640px;
        }
        .hero-data-item {
            display: flex;
            flex-direction: column;
        }
        .hero-data-item strong {
            font-size: 30px;
            font-weight: 800;
            color: var(--neon);
            font-family: "SF Mono", Consolas, monospace;
            letter-spacing: -0.5px;
        }
        .hero-data-item span {
            font-size: 13px;
            color: var(--text-muted);
            letter-spacing: 0.5px;
            margin-top: 4px;
        }

        /* Intro */
        .cat-intro {
            padding: var(--space-section) 0;
        }
        .intro-card {
            background: var(--surface-1);
            border: 1px solid var(--border-neon);
            border-radius: var(--radius-card);
            padding: 26px;
            height: 100%;
            transition: box-shadow .3s, border-color .3s, transform .3s;
        }
        .intro-card:hover {
            border-color: rgba(0, 229, 122, 0.4);
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
        }
        .intro-card .icon-badge {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(0, 229, 122, 0.1);
            border: 1px solid rgba(0, 229, 122, 0.3);
            color: var(--neon);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            margin-bottom: 18px;
        }
        .intro-card h3 {
            font-size: 19px;
            font-weight: 600;
            margin-bottom: 10px;
        }
        .intro-card p {
            color: var(--text-sub);
            font-size: 15px;
            line-height: 1.7;
            margin: 0;
        }
        .intro-visual {
            border-radius: var(--radius-card);
            overflow: hidden;
            height: 100%;
            min-height: 320px;
            border: 1px solid var(--border-neon);
        }
        .intro-visual img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
            min-height: 320px;
        }

        /* Features */
        .cat-features {
            padding: var(--space-section) 0;
            background: var(--surface-1);
        }
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .feature-card {
            background: var(--surface-2);
            border: 1px solid rgba(255, 255, 255, 0.07);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            transition: border-color .3s, box-shadow .3s, transform .3s;
            position: relative;
        }
        .feature-card::before {
            content: "";
            position: absolute;
            left: 24px;
            right: 24px;
            top: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--neon), transparent);
            opacity: 0;
            transition: opacity .3s;
        }
        .feature-card:hover {
            border-color: rgba(0, 229, 122, 0.35);
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .feature-card:hover::before {
            opacity: 1;
        }
        .feature-card .feat-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(0, 229, 122, 0.08);
            border: 1px solid rgba(0, 229, 122, 0.25);
            color: var(--neon);
            font-size: 20px;
            margin-bottom: 20px;
        }
        .feature-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 10px;
        }
        .feature-card p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
            margin: 0;
        }

        /* Scenes */
        .cat-scenes {
            padding: var(--space-section) 0;
        }
        .scene-item {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            margin-bottom: 56px;
        }
        .scene-item:last-child {
            margin-bottom: 0;
        }
        .scene-item.reverse .scene-img {
            order: 2;
        }
        .scene-item.reverse .scene-text {
            order: 1;
        }
        .scene-text .step-num {
            font-size: 14px;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-bottom: 8px;
            display: block;
        }
        .scene-text h3 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 14px;
        }
        .scene-text p {
            color: var(--text-sub);
            font-size: 16px;
            line-height: 1.75;
            margin: 0;
        }
        .scene-img {
            border-radius: var(--radius-card);
            overflow: hidden;
            border: 1px solid var(--border-neon);
            box-shadow: var(--shadow-card);
            transition: box-shadow .3s;
        }
        .scene-img img {
            width: 100%;
            display: block;
            height: 280px;
            object-fit: cover;
            transition: transform .5s;
        }
        .scene-img:hover img {
            transform: scale(1.02);
        }

        /* Link cards */
        .cat-links {
            padding: var(--space-section) 0;
            background: var(--surface-1);
        }
        .link-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .link-card {
            background: var(--surface-2);
            border: 1px solid rgba(255, 255, 255, 0.07);
            border-radius: var(--radius-card);
            padding: 32px 26px;
            text-align: center;
            transition: border-color .3s, box-shadow .3s, transform .3s;
            display: block;
        }
        .link-card:hover {
            border-color: rgba(0, 229, 122, 0.4);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .link-card .link-icon {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            margin: 0 auto 18px;
            background: rgba(0, 229, 122, 0.08);
            border: 1px solid rgba(0, 229, 122, 0.25);
            color: var(--neon);
            font-size: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .link-card h3 {
            font-size: 19px;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-main);
        }
        .link-card p {
            font-size: 14px;
            color: var(--text-sub);
            margin: 0 0 16px;
            line-height: 1.6;
        }
        .link-card .go-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--neon);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap .2s;
        }
        .link-card .go-link i {
            font-size: 12px;
        }
        .link-card:hover .go-link {
            gap: 10px;
        }

        /* FAQ */
        .cat-faq {
            padding: var(--space-section) 0;
        }
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--surface-1);
            border: 1px solid rgba(255, 255, 255, 0.07);
            border-radius: 12px;
            margin-bottom: 12px;
            overflow: hidden;
            position: relative;
            transition: border-color .25s;
        }
        .faq-item::before {
            content: "";
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 3px;
            background: var(--neon);
            opacity: 0;
            transition: opacity .25s;
        }
        .faq-item.active::before {
            opacity: 1;
        }
        .faq-item.active {
            border-color: rgba(0, 229, 122, 0.3);
        }
        .faq-question {
            width: 100%;
            background: transparent;
            border: none;
            color: var(--text-main);
            font-size: 16px;
            font-weight: 600;
            padding: 20px 24px;
            text-align: left;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            transition: color .2s;
        }
        .faq-question:hover {
            color: var(--neon);
        }
        .faq-question .faq-icon {
            font-size: 18px;
            color: var(--neon);
            transition: transform .3s;
            flex-shrink: 0;
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            padding: 0 24px 22px;
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-sub);
        }

        /* CTA */
        .cat-cta {
            padding-bottom: var(--space-section);
        }
        .cta-panel {
            background: var(--primary);
            border-radius: 20px;
            padding: 64px 40px;
            position: relative;
            border: 1px solid rgba(0, 229, 122, 0.3);
            text-align: center;
            box-shadow: var(--shadow-neon);
        }
        .cta-panel::after {
            content: "";
            position: absolute;
            inset: 6px;
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 16px;
            pointer-events: none;
        }
        .cta-panel h2 {
            font-size: 30px;
            font-weight: 700;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }
        .cta-panel p {
            font-size: 15px;
            color: #cfe3d8;
            margin-bottom: 28px;
            position: relative;
            z-index: 1;
        }
        .cta-panel .btn {
            position: relative;
            z-index: 1;
            padding: 13px 40px;
            font-size: 16px;
        }

        /* Footer */
        .site-footer {
            background: #070a08;
            border-top: 1px solid transparent;
            background-image: linear-gradient(90deg, transparent, rgba(0, 229, 122, 0.6), rgba(255, 122, 26, 0.4), transparent);
            background-size: 100% 1px;
            background-position: top;
            background-repeat: no-repeat;
            padding: 60px 0 28px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 14px;
        }
        .footer-brand:hover {
            color: var(--neon);
        }
        .footer-desc {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 16px;
            position: relative;
            padding-left: 12px;
        }
        .footer-title::before {
            content: "";
            position: absolute;
            left: 0;
            top: 4px;
            bottom: 4px;
            width: 3px;
            background: var(--neon);
            border-radius: 3px;
            box-shadow: 0 0 10px rgba(0, 229, 122, 0.4);
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: var(--text-sub);
            font-size: 14px;
            transition: color .2s, padding-left .2s;
        }
        .footer-links a:hover {
            color: var(--neon);
            padding-left: 4px;
        }
        .footer-contact li {
            color: var(--text-sub);
            font-size: 14px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-contact i {
            color: var(--neon);
            font-size: 13px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            margin-top: 44px;
            padding-top: 22px;
            text-align: center;
        }
        .footer-bottom p {
            color: var(--text-muted);
            font-size: 13px;
            margin: 0;
        }

        /* Animations */
        @keyframes fadeUp {
            from {
                opacity: 0;
                transform: translateY(24px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .fade-up {
            animation: fadeUp .6s ease both;
        }

        /* Responsive */
        @media (max-width: 991px) {
            .navbar-collapse {
                background: #0a0f0d;
                border-radius: 0 0 16px 16px;
                padding: 12px 18px;
                border: 1px solid rgba(0, 229, 122, 0.12);
                border-top: none;
            }
            .navbar-nav .nav-link {
                padding: 12px 4px !important;
                border-bottom: 1px solid rgba(255, 255, 255, 0.04);
            }
            .navbar-nav .nav-link::after {
                display: none;
            }
            .main-nav .btn-neon-outline {
                margin-top: 12px;
                display: inline-block;
                text-align: center;
            }
            .cat-hero h1 {
                font-size: 38px;
            }
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .scene-item,
            .scene-item.reverse {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .scene-item.reverse .scene-img,
            .scene-item.reverse .scene-text {
                order: 0;
            }
            .link-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .section-title {
                font-size: 28px;
            }
        }
        @media (max-width: 767px) {
            :root {
                --space-section: 48px;
            }
            .cat-hero {
                padding: 120px 0 48px;
            }
            .cat-hero h1 {
                font-size: 32px;
            }
            .cat-hero .lead-text {
                font-size: 16px;
            }
            .hero-data-item strong {
                font-size: 24px;
            }
            .intro-visual {
                min-height: 220px;
            }
            .intro-visual img {
                min-height: 220px;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .link-grid {
                grid-template-columns: 1fr;
            }
            .cta-panel {
                padding: 48px 20px;
            }
            .cta-panel h2 {
                font-size: 24px;
            }
            .site-footer {
                padding: 40px 0 20px;
            }
            .footer-bottom {
                margin-top: 30px;
            }
        }
        @media (max-width: 520px) {
            .cat-hero h1 {
                font-size: 28px;
            }
            .hero-data-row {
                gap: 16px;
            }
            .scene-text h3 {
                font-size: 20px;
            }
            .section-title {
                font-size: 24px;
            }
        }