/* roulang page: index */
:root {
  --bg-primary: #0B0C10;
  --bg-card: #14171E;
  --bg-secondary: #1D222C;
  --accent: #C6FF32;
  --accent-hover: #D6FF5C;
  --accent-orange: #FF5A2E;
  --text-primary: #F2F3F5;
  --text-secondary: #9AA0AD;
  --border: rgba(255,255,255,0.08);
  --success: #20B486;
  --danger: #F0445A;
  --radius: 12px;
  --radius-btn: 8px;
  --shadow: 0 8px 24px rgba(0,0,0,0.35);
  --shadow-hover: 0 12px 32px rgba(198,255,50,0.12);
  --font-main: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-num: Impact, "Arial Narrow", "Barlow Condensed", "Oswald", sans-serif;
  --container: 1200px;
  --header-h: 68px;
  --transition: 0.3s ease;
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.8;
  background: var(--bg-primary);
  color: var(--text-primary);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}
ul, ol {
  list-style: none;
}
button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
  background: none;
}
button {
  cursor: pointer;
}
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
.section {
  padding: clamp(48px, 8vw, 96px) 0;
}
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 48px;
}
.section-head h2 {
  font-size: 1.75rem;
  font-weight: 800;
  line-height: 1.3;
  position: relative;
  padding-bottom: 14px;
}
.section-head h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 48px;
  height: 3px;
  background: var(--accent);
  border-radius: 2px;
}
.section-head .view-all {
  font-size: 0.875rem;
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: color var(--transition);
}
.section-head .view-all:hover {
  color: var(--accent);
}
.section-head .view-all i {
  font-size: 0.75rem;
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  background: rgba(11, 12, 16, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}
.site-header.scrolled {
  background: rgba(11, 12, 16, 0.95);
}
.header-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-logo {
  width: 40px;
  height: 40px;
  border: 2px solid var(--accent);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 1.1rem;
  color: var(--accent);
  background: rgba(198, 255, 50, 0.06);
  flex-shrink: 0;
}
.brand-name {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 0.01em;
  white-space: nowrap;
}
.brand-name span {
  color: var(--accent);
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  margin: 0 auto;
}
.main-nav a {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 6px 2px;
  transition: color var(--transition);
}
.main-nav a:hover,
.main-nav a.active {
  color: var(--text-primary);
}
.main-nav a.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.search-box {
  position: relative;
  display: flex;
  align-items: center;
}
.search-box input {
  width: 160px;
  height: 38px;
  padding: 0 36px 0 14px;
  border-radius: 20px;
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 0.875rem;
  border: 1px solid var(--border);
  transition: width var(--transition), border-color var(--transition);
}
.search-box input:focus {
  width: 240px;
  border-color: var(--accent);
}
.search-box i {
  position: absolute;
  right: 14px;
  color: var(--text-secondary);
  font-size: 0.875rem;
  pointer-events: none;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 22px;
  height: 40px;
  border-radius: var(--radius-btn);
  font-size: 0.9375rem;
  font-weight: 600;
  white-space: nowrap;
  transition: all var(--transition);
  border: 1px solid transparent;
}
.btn:hover {
  transform: translateY(-2px);
}
.btn:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
}
.btn:active {
  transform: translateY(0);
}
.btn-primary {
  background: var(--accent);
  color: #0B0C10;
}
.btn-primary:hover {
  background: var(--accent-hover);
  box-shadow: var(--shadow-hover);
}
.btn-outline {
  background: transparent;
  border-color: rgba(255,255,255,0.25);
  color: var(--text-primary);
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.btn-dark {
  background: #0B0C10;
  color: var(--accent);
}
.btn-dark:hover {
  background: #1D222C;
  color: var(--accent-hover);
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}
.btn-sm {
  height: 34px;
  padding: 0 16px;
  font-size: 0.8125rem;
}
.btn-lg {
  height: 48px;
  padding: 0 32px;
  font-size: 1rem;
}
.btn-login {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  padding: 0 16px;
  height: 36px;
  font-size: 0.875rem;
}
.btn-login:hover {
  color: var(--accent);
  border-color: var(--accent);
}
.hamburger {
  display: none;
  width: 40px;
  height: 40px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
  border-radius: 8px;
  transition: background var(--transition);
}
.hamburger:hover {
  background: var(--bg-card);
}
.hamburger span {
  width: 20px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--transition);
}
.mobile-menu {
  display: none;
  position: fixed;
  top: var(--header-h);
  left: 0;
  right: 0;
  background: rgba(11, 12, 16, 0.98);
  backdrop-filter: blur(20px);
  padding: 20px 24px 30px;
  border-bottom: 1px solid var(--border);
  z-index: 999;
}
.mobile-menu.open {
  display: block;
  animation: fadeInDown 0.3s ease;
}
.mobile-menu a.mobile-link {
  display: block;
  padding: 14px 8px;
  font-size: 1rem;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
}
.mobile-menu a.mobile-link:hover,
.mobile-menu a.mobile-link.active {
  color: var(--accent);
}
.mobile-menu .mobile-cta {
  display: flex;
  gap: 12px;
  margin-top: 20px;
}
@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Hero */
.hero {
  position: relative;
  min-height: min(720px, calc(100vh - var(--header-h)));
  display: flex;
  align-items: center;
  padding: 80px 0 60px;
  margin-top: var(--header-h);
  background:
    radial-gradient(circle at 72% 28%, rgba(198, 255, 50, 0.14) 0%, transparent 55%),
    radial-gradient(circle at 15% 80%, rgba(255, 90, 46, 0.06) 0%, transparent 40%),
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  background-size: 32px 32px, 32px 32px, cover, cover, cover;
  background-color: var(--bg-primary);
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(11,12,16,0.6) 0%, rgba(11,12,16,0.82) 60%, var(--bg-primary) 100%);
  pointer-events: none;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(198, 255, 50, 0.1);
  border: 1px solid rgba(198, 255, 50, 0.35);
  border-radius: 30px;
  color: var(--accent);
  font-size: 0.8125rem;
  font-weight: 600;
  margin-bottom: 20px;
}
.hero-badge i {
  font-size: 0.75rem;
}
.hero h1 {
  font-size: clamp(2.2rem, 6vw, 4.2rem);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -0.01em;
}
.hero h1 span {
  color: var(--accent);
}
.hero-subtitle {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 560px;
  margin-bottom: 32px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 56px;
}
.hero-stats {
  display: flex;
  gap: 0;
  border-top: 1px solid var(--border);
  padding-top: 28px;
  max-width: 560px;
}
.hero-stat {
  flex: 1;
  padding: 0 20px;
  border-left: 1px solid var(--border);
}
.hero-stat:first-child {
  border-left: none;
  padding-left: 0;
}
.hero-stat .num {
  font-family: var(--font-num);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1.2;
}
.hero-stat .label {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  margin-top: 4px;
}
.hero-scroll {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  color: var(--text-secondary);
  font-size: 1.25rem;
  animation: bounce 2s infinite;
  z-index: 2;
}
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* Data Center */
.data-center {
  padding: 36px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-card);
}
.data-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}
.data-item {
  padding: 16px 28px;
  border-left: 1px solid var(--border);
  text-align: center;
}
.data-item:first-child {
  border-left: none;
}
.data-item .num {
  font-family: var(--font-num);
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.2;
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 4px;
}
.data-item .num small {
  font-size: 1rem;
  color: var(--text-secondary);
}
.data-item .label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-top: 6px;
}

/* How to Play */
.how-to-play {
  position: relative;
}
.how-to-play .section-head h2 {
  font-size: 1.75rem;
}
.steps-wrap {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  position: relative;
}
.steps-wrap::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 10%;
  right: 10%;
  height: 2px;
  background: repeating-linear-gradient(90deg, var(--accent) 0 8px, transparent 8px 16px);
  opacity: 0.2;
  transform: translateY(-50%);
  pointer-events: none;
}
.step-card {
  background: var(--bg-secondary);
  border-radius: var(--radius);
  padding: 32px 28px;
  border-left: 3px solid var(--accent);
  clip-path: polygon(0 0, 96% 0, 100% 6%, 100% 100%, 0 100%);
  transition: transform var(--transition), box-shadow var(--transition);
  position: relative;
  z-index: 1;
}
.step-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.step-num {
  font-family: var(--font-num);
  font-size: 3rem;
  font-weight: 700;
  color: rgba(198, 255, 50, 0.35);
  line-height: 1;
  margin-bottom: 16px;
}
.step-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-primary);
}
.step-card p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
}
.step-icon {
  font-size: 1.5rem;
  color: var(--accent);
  margin-bottom: 8px;
}

/* Rewards */
.rewards {
  background: var(--bg-card);
  position: relative;
  overflow: hidden;
}
.rewards::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 100%, rgba(198, 255, 50, 0.08) 0%, transparent 70%);
  pointer-events: none;
}
.podium {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: flex-end;
}
.podium-card {
  background: var(--bg-secondary);
  border-radius: var(--radius);
  padding: 32px 28px;
  position: relative;
  border: 1px solid var(--border);
  transition: transform var(--transition), box-shadow var(--transition);
  clip-path: polygon(0 0, 96% 0, 100% 6%, 100% 100%, 0 100%);
}
.podium-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.podium-card.featured {
  border-color: rgba(198, 255, 50, 0.6);
  transform: scale(1.05);
  box-shadow: 0 16px 40px rgba(0,0,0,0.5), 0 0 60px rgba(198, 255, 50, 0.08);
  z-index: 2;
}
.podium-card.featured:hover {
  transform: scale(1.05) translateY(-4px);
  box-shadow: 0 16px 44px rgba(0,0,0,0.5), 0 0 80px rgba(198, 255, 50, 0.12);
}
.podium-rank {
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  margin-bottom: 12px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.podium-card.featured .podium-rank {
  color: var(--accent-orange);
}
.podium-title {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 12px;
}
.podium-card.featured .podium-title {
  color: var(--accent);
}
.podium-value {
  font-family: var(--font-num);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--accent-orange);
  margin-bottom: 16px;
}
.podium-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.7;
}
.podium-badge {
  position: absolute;
  top: -10px;
  right: 16px;
  background: var(--accent-orange);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 2px 12px;
  border-radius: 12px;
}

/* Mission Progress */
.mission {
  position: relative;
}
.mission-layout {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 40px;
  align-items: center;
}
.mission-panel {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 36px;
  border: 1px solid var(--border);
}
.mission-panel h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.mission-panel .mission-sub {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
}
.progress-info {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 12px;
}
.progress-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
}
.progress-percent {
  font-family: var(--font-num);
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
}
.progress-track {
  height: 12px;
  background: #22262F;
  border-radius: 6px;
  overflow: hidden;
  margin-bottom: 20px;
}
.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-hover));
  border-radius: 6px;
  transition: width 0.6s ease;
  position: relative;
}
.progress-fill::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  right: 0;
  width: 20px;
  background: rgba(255,255,255,0.2);
  border-radius: 6px;
}
.task-side {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.task-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.task-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: var(--bg-card);
  border-radius: 10px;
  border: 1px solid var(--border);
  transition: border-color var(--transition);
}
.task-item:hover {
  border-color: rgba(198, 255, 50, 0.3);
}
.task-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
  background: var(--bg-secondary);
  color: var(--text-secondary);
}
.task-item.done .task-icon {
  background: rgba(32, 180, 134, 0.15);
  color: var(--success);
}
.task-item.active .task-icon {
  background: rgba(198, 255, 50, 0.1);
  color: var(--accent);
}
.task-name {
  flex: 1;
  font-size: 0.9375rem;
  color: var(--text-primary);
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 12px;
  white-space: nowrap;
}
.badge-progress {
  background: var(--bg-secondary);
  color: var(--text-secondary);
}
.badge-pending {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
}
.badge-done {
  background: var(--accent);
  color: #0B0C10;
}

/* Latest News */
.news-section {
  background: var(--bg-primary);
}
.news-wrap {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 32px;
}
.news-featured {
  background: var(--bg-card);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: all var(--transition);
}
.news-featured:hover {
  box-shadow: var(--shadow);
  border-color: rgba(198, 255, 50, 0.25);
}
.news-featured .news-img {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
}
.news-featured .news-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.news-featured:hover .news-img img {
  transform: scale(1.03);
}
.news-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(11, 12, 16, 0.8);
  backdrop-filter: blur(8px);
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 16px;
  border: 1px solid rgba(198, 255, 50, 0.3);
}
.news-featured-body {
  padding: 24px;
}
.news-featured-body h3 {
  font-size: 1.375rem;
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.4;
}
.news-featured-body p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}
.news-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.8125rem;
  color: var(--text-secondary);
}
.news-meta .news-cat {
  color: var(--accent);
  background: rgba(198, 255, 50, 0.08);
  padding: 2px 10px;
  border-radius: 12px;
}
.news-sidebar {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.news-row {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
  background: var(--bg-card);
  border-radius: 10px;
  border: 1px solid var(--border);
  transition: all var(--transition);
}
.news-row:hover {
  border-color: rgba(198, 255, 50, 0.25);
  box-shadow: var(--shadow);
}
.news-row img {
  width: 100px;
  height: 70px;
  object-fit: cover;
  border-radius: 8px;
  flex-shrink: 0;
}
.news-row-body {
  flex: 1;
  min-width: 0;
}
.news-row-body h4 {
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: 4px;
  line-height: 1.4;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.news-row-body p {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 6px;
}
.news-row .news-meta {
  font-size: 0.75rem;
}
.news-empty {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 80px 24px;
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 2px dashed var(--border);
  text-align: center;
  gap: 16px;
}
.news-empty .icon-wrap {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-size: 1.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
}
.news-empty p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

/* CTA */
.cta-section {
  background: var(--accent);
  position: relative;
  overflow: hidden;
  padding: clamp(64px, 8vw, 100px) 0;
}
.cta-section::before {
  content: '';
  position: absolute;
  top: -60%;
  right: -10%;
  width: 400px;
  height: 400px;
  background: rgba(0, 0, 0, 0.08);
  border-radius: 50%;
  transform: rotate(20deg);
  pointer-events: none;
}
.cta-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}
.cta-content h2 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 900;
  color: #0B0C10;
  margin-bottom: 16px;
  line-height: 1.3;
}
.cta-content p {
  color: rgba(11, 12, 16, 0.75);
  font-size: 1rem;
  margin-bottom: 32px;
  line-height: 1.8;
}
.cta-content .btn-dark {
  background: #0B0C10;
  color: var(--accent);
}
.cta-content .btn-dark:hover {
  background: #1D222C;
  box-shadow: 0 8px 32px rgba(0,0,0,0.25);
}
.cta-note {
  margin-top: 16px;
  font-size: 0.8125rem;
  color: rgba(11, 12, 16, 0.6);
}

/* FAQ */
.faq-wrap {
  max-width: 880px;
  margin: 0 auto;
}
.faq-item {
  border-bottom: 1px solid var(--border);
}
.faq-item:first-child {
  border-top: 1px solid var(--border);
}
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 8px;
  text-align: left;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  background: none;
  transition: color var(--transition);
  cursor: pointer;
}
.faq-question:hover {
  color: var(--accent);
}
.faq-question .faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--text-secondary);
  transition: all var(--transition);
  flex-shrink: 0;
}
.faq-item.open .faq-question .faq-icon {
  transform: rotate(45deg);
  background: var(--accent);
  color: #0B0C10;
  border-color: var(--accent);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}
.faq-item.open .faq-answer {
  max-height: 500px;
}
.faq-answer p {
  padding: 0 8px 22px;
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.8;
}

/* Footer */
.site-footer {
  background: #08090C;
  padding-top: 64px;
  border-top: 1px solid var(--border);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer-brand .brand {
  margin-bottom: 16px;
}
.footer-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
  max-width: 360px;
}
.footer-contact {
  font-size: 0.875rem;
  color: var(--text-secondary);
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer-contact a:hover {
  color: var(--accent);
}
.footer-title {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links a {
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: color var(--transition);
}
.footer-links a:hover {
  color: var(--accent);
}
.footer-copyright {
  border-top: 1px solid var(--border);
  padding: 20px 0;
  text-align: center;
  font-size: 0.8125rem;
  color: var(--text-secondary);
}
.footer-copyright a {
  color: var(--text-secondary);
}
.footer-copyright a:hover {
  color: var(--accent);
}

/* Responsive */
@media (max-width: 1199px) {
  .steps-wrap {
    gap: 20px;
  }
  .step-card {
    padding: 24px 20px;
  }
}
@media (max-width: 991px) {
  .main-nav {
    display: none;
  }
  .hamburger {
    display: flex;
  }
  .search-box input {
    width: 120px;
  }
  .search-box input:focus {
    width: 180px;
  }
  .btn-login {
    display: none;
  }
  .data-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .data-item {
    border-left: none;
    padding: 20px;
  }
  .data-item:nth-child(2) {
    border-left: 1px solid var(--border);
  }
  .data-item:nth-child(3) {
    border-left: none;
  }
  .steps-wrap {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .steps-wrap::before {
    display: none;
  }
  .podium {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .podium-card.featured {
    transform: scale(1);
  }
  .podium-card.featured:hover {
    transform: scale(1.01);
  }
  .mission-layout {
    grid-template-columns: 1fr;
  }
  .news-wrap {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}
@media (max-width: 767px) {
  .header-inner {
    padding: 0 16px;
    gap: 12px;
  }
  .brand-name {
    font-size: 1rem;
  }
  .brand-logo {
    width: 34px;
    height: 34px;
    font-size: 0.9rem;
  }
  .search-box {
    display: none;
  }
  .btn-primary.header-cta {
    padding: 0 14px;
    font-size: 0.8125rem;
    height: 36px;
  }
  .hero {
    padding: 60px 0 48px;
  }
  .hero h1 {
    font-size: clamp(1.9rem, 5.5vw, 2.6rem);
  }
  .hero-subtitle {
    font-size: 0.9375rem;
  }
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .hero-stats {
    flex-wrap: wrap;
    gap: 16px;
  }
  .hero-stat {
    flex: 1 1 40%;
    border-left: none;
    padding: 8px 8px;
    text-align: center;
  }
  .hero-stat .num {
    font-size: 1.4rem;
  }
  .data-grid {
    grid-template-columns: 1fr 1fr;
  }
  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  .section-head h2 {
    font-size: 1.5rem;
  }
  .podium-card {
    padding: 24px 20px;
  }
  .mission-panel {
    padding: 24px;
  }
  .news-featured-body {
    padding: 18px;
  }
  .news-row {
    flex-direction: column;
    align-items: flex-start;
  }
  .news-row img {
    width: 100%;
    height: 140px;
  }
  .cta-content h2 {
    font-size: 1.5rem;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .footer-copyright {
    font-size: 0.75rem;
  }
}
@media (max-width: 520px) {
  .brand-name {
    font-size: 0.9375rem;
  }
  .btn-primary.header-cta {
    display: none;
  }
  .data-item .num {
    font-size: 1.5rem;
  }
  .hero-actions {
    margin-bottom: 40px;
  }
  .task-item {
    flex-wrap: wrap;
  }
}

/* roulang page: category1 */
/* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            font-size: 16px;
            line-height: 1.8;
            background: var(--bg-primary);
            color: var(--text-primary);
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }
        img, svg { max-width: 100%; display: block; }
        a { text-decoration: none; color: inherit; }
        button, input { font-family: inherit; font-size: inherit; border: none; background: none; }
        ul, ol { list-style: none; }
        :focus-visible { outline: 2px solid #fff; outline-offset: 2px; border-radius: 4px; }

        /* ===== Design Variables ===== */
        :root {
            --bg-primary: #0B0C10;
            --bg-card: #14171E;
            --bg-card-secondary: #1D222C;
            --accent: #C6FF32;
            --accent-hover: #D6FF5C;
            --accent-orange: #FF5A2E;
            --text-primary: #F2F3F5;
            --text-secondary: #9AA0AD;
            --border-color: rgba(255, 255, 255, 0.08);
            --success: #20B486;
            --warning: #F0445A;
            --radius: 12px;
            --radius-btn: 8px;
            --shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
            --shadow-accent: 0 12px 32px rgba(198, 255, 50, 0.12);
            --font-main: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-display: "Barlow Condensed", "Oswald", Impact, "Arial Narrow", sans-serif;
            --container: 1200px;
            --pad-x: 24px;
            --section-pad: clamp(48px, 8vw, 96px);
        }

        /* ===== Container ===== */
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 var(--pad-x);
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: 68px;
            background: rgba(11, 12, 16, 0.85);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-color);
            transition: box-shadow 0.3s;
        }
        .site-header.scrolled { box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5); }
        .header-inner {
            height: 68px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .brand-logo {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: var(--accent);
            color: var(--bg-primary);
            font-family: var(--font-display);
            font-weight: 800;
            font-size: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            line-height: 1;
            box-shadow: 0 0 20px rgba(198, 255, 50, 0.3);
        }
        .brand-name {
            font-family: var(--font-display);
            font-weight: 700;
            font-size: 22px;
            letter-spacing: 0.02em;
            color: var(--text-primary);
            line-height: 1.2;
        }
        .brand-name span { color: var(--accent); }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .main-nav a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 2px;
            position: relative;
            transition: color 0.25s;
            white-space: nowrap;
        }
        .main-nav a::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: width 0.3s;
            border-radius: 2px;
        }
        .main-nav a:hover, .main-nav a.active { color: var(--accent); }
        .main-nav a:hover::after, .main-nav a.active::after { width: 100%; }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-card-secondary);
            border: 1px solid var(--border-color);
            border-radius: 20px;
            padding: 0 14px;
            height: 38px;
            width: 160px;
            transition: width 0.3s, border-color 0.3s;
            gap: 8px;
        }
        .search-box i { color: var(--text-secondary); font-size: 14px; }
        .search-box input {
            background: none;
            border: none;
            outline: none;
            color: var(--text-primary);
            width: 100%;
            font-size: 14px;
        }
        .search-box input::placeholder { color: var(--text-secondary); }
        .search-box:focus-within { width: 240px; border-color: var(--accent); }
        .btn-login {
            font-size: 14px;
            color: var(--text-primary);
            padding: 8px 14px;
            border-radius: var(--radius-btn);
            border: 1px solid var(--border-color);
            transition: all 0.25s;
            white-space: nowrap;
        }
        .btn-login:hover { border-color: var(--accent); color: var(--accent); }
        .btn-primary {
            font-size: 14px;
            font-weight: 700;
            background: var(--accent);
            color: #0A0D10;
            padding: 9px 20px;
            border-radius: var(--radius-btn);
            transition: background 0.25s, transform 0.2s, box-shadow 0.25s;
            white-space: nowrap;
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 4px 16px rgba(198, 255, 50, 0.3);
        }
        .btn-primary:active { transform: translateY(0); }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            cursor: pointer;
        }
        .hamburger span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: transform 0.3s, opacity 0.3s;
        }
        .hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
        .hamburger.open span:nth-child(2) { opacity: 0; }
        .hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
        .mobile-menu {
            display: none;
            position: fixed;
            top: 68px;
            left: 0;
            right: 0;
            background: var(--bg-primary);
            border-bottom: 1px solid var(--border-color);
            padding: 16px 24px 24px;
            z-index: 999;
            flex-direction: column;
            gap: 4px;
        }
        .mobile-menu a {
            padding: 12px 8px;
            font-size: 16px;
            color: var(--text-primary);
            border-bottom: 1px solid var(--border-color);
        }
        .mobile-menu a:last-child { border-bottom: none; }
        .mobile-menu a.active { color: var(--accent); }
        .mobile-menu.open { display: flex; animation: slideDown 0.3s ease; }
        @keyframes slideDown {
            from { opacity: 0; transform: translateY(-10px); }
            to { opacity: 1; transform: translateY(0); }
        }

        /* ===== Page Hero ===== */
        .page-hero {
            min-height: 420px;
            display: flex;
            align-items: center;
            position: relative;
            padding: 140px 0 80px;
            background: linear-gradient(rgba(11, 12, 16, 0.82), rgba(11, 12, 16, 0.94)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
        }
        .page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
            background-size: 32px 32px;
            pointer-events: none;
        }
        .page-hero::after {
            content: "";
            position: absolute;
            top: 10%;
            right: 10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(198, 255, 50, 0.1) 0%, transparent 70%);
            pointer-events: none;
        }
        .page-hero .container { position: relative; z-index: 2; }
        .page-hero .page-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(198, 255, 50, 0.12);
            border: 1px solid rgba(198, 255, 50, 0.3);
            color: var(--accent);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: 24px;
            letter-spacing: 0.04em;
        }
        .page-hero h1 {
            font-size: clamp(2.2rem, 5vw, 3.6rem);
            font-weight: 900;
            line-height: 1.15;
            margin-bottom: 20px;
            max-width: 800px;
        }
        .page-hero h1 .highlight { color: var(--accent); }
        .page-hero .hero-desc {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 620px;
            margin-bottom: 32px;
            line-height: 1.7;
        }
        .hero-buttons { display: flex; gap: 14px; flex-wrap: wrap; }
        .btn-secondary {
            font-size: 14px;
            font-weight: 600;
            background: transparent;
            border: 1px solid var(--text-secondary);
            color: var(--text-primary);
            padding: 12px 24px;
            border-radius: var(--radius-btn);
            transition: all 0.25s;
        }
        .btn-secondary:hover { border-color: var(--accent); color: var(--accent); }

        /* ===== Stats bar ===== */
        .stats-bar {
            background: var(--bg-card);
            border-bottom: 1px solid var(--border-color);
            padding: 24px 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-item {
            text-align: center;
            padding: 8px 4px;
            border-right: 1px solid var(--border-color);
        }
        .stat-item:last-child { border-right: none; }
        .stat-item .stat-num {
            font-family: var(--font-display);
            font-size: 42px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.1;
        }
        .stat-item .stat-label {
            font-size: 14px;
            color: var(--text-secondary);
            margin-top: 6px;
        }

        /* ===== Section common ===== */
        .section { padding-block: var(--section-pad); position: relative; }
        .section .container { position: relative; z-index: 2; }
        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 48px;
        }
        .section-head h2 {
            font-size: 1.75rem;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 12px;
        }
        .section-head h2 .highlight { color: var(--accent); }
        .section-head p {
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.7;
        }

        /* ===== Timeline ===== */
        .timeline-section {
            background: var(--bg-primary);
        }
        .timeline {
            position: relative;
            max-width: 920px;
            margin: 0 auto;
            padding-left: 40px;
        }
        .timeline::before {
            content: "";
            position: absolute;
            left: 12px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(to bottom, var(--accent), rgba(198, 255, 50, 0.1));
        }
        .timeline-item {
            position: relative;
            padding-bottom: 40px;
        }
        .timeline-item:last-child { padding-bottom: 0; }
        .timeline-dot {
            position: absolute;
            left: -36px;
            top: 24px;
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: var(--accent);
            box-shadow: 0 0 0 4px rgba(198, 255, 50, 0.2), 0 0 16px rgba(198, 255, 50, 0.4);
        }
        .timeline-date {
            font-family: var(--font-display);
            font-size: 14px;
            font-weight: 600;
            color: var(--accent);
            letter-spacing: 0.05em;
            text-transform: uppercase;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .timeline-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: border-color 0.3s, box-shadow 0.3s;
        }
        .timeline-card:hover {
            border-color: rgba(198, 255, 50, 0.3);
            box-shadow: var(--shadow-accent);
        }
        .timeline-card .card-img {
            height: 200px;
            overflow: hidden;
            position: relative;
        }
        .timeline-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }
        .timeline-card:hover .card-img img { transform: scale(1.03); }
        .timeline-card .card-body { padding: 20px 24px 24px; }
        .timeline-card .card-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent);
            background: rgba(198, 255, 50, 0.1);
            padding: 4px 12px;
            border-radius: 4px;
            margin-bottom: 10px;
            letter-spacing: 0.03em;
        }
        .timeline-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .timeline-card p {
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.7;
            margin-bottom: 14px;
        }
        .timeline-card .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-secondary);
        }
        .timeline-card .card-meta i { font-size: 12px; }

        /* ===== Focus Cards ===== */
        .focus-section { background: var(--bg-primary); }
        .focus-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .focus-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
        }
        .focus-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-accent);
            border-color: rgba(198, 255, 50, 0.25);
        }
        .focus-card .focus-img {
            height: 180px;
            overflow: hidden;
            position: relative;
        }
        .focus-card .focus-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }
        .focus-card:hover .focus-img img { transform: scale(1.05); }
        .focus-card .focus-img .focus-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--accent-orange);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 4px;
            z-index: 2;
        }
        .focus-card .focus-body { padding: 20px 22px 24px; }
        .focus-card .focus-body h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .focus-card .focus-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.65;
            margin-bottom: 14px;
        }
        .focus-card .focus-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: var(--text-secondary);
            border-top: 1px solid var(--border-color);
            padding-top: 12px;
        }
        .focus-card .focus-footer a {
            color: var(--accent);
            font-weight: 600;
            transition: color 0.2s;
        }
        .focus-card .focus-footer a:hover { color: var(--accent-hover); }

        /* ===== Match Preview ===== */
        .preview-section {
            background: var(--bg-card);
            position: relative;
            overflow: hidden;
        }
        .preview-section::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
            background-size: 32px 32px;
            pointer-events: none;
        }
        .preview-layout {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .preview-image {
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            position: relative;
        }
        .preview-image img { width: 100%; height: 320px; object-fit: cover; }
        .preview-image .preview-tag {
            position: absolute;
            top: 16px;
            left: 16px;
            background: rgba(198, 255, 50, 0.9);
            color: #0A0D10;
            font-size: 13px;
            font-weight: 700;
            padding: 6px 16px;
            border-radius: 4px;
        }
        .preview-info h2 {
            font-size: 1.75rem;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 16px;
        }
        .preview-info h2 .highlight { color: var(--accent); }
        .preview-info p {
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.75;
            margin-bottom: 24px;
        }
        .preview-list li {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 10px 0;
            border-bottom: 1px solid var(--border-color);
            font-size: 15px;
            color: var(--text-primary);
        }
        .preview-list li:last-child { border-bottom: none; }
        .preview-list li i { color: var(--accent); font-size: 14px; }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--accent);
            position: relative;
            overflow: hidden;
            padding-block: 64px;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            top: -50%;
            right: -20%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.2) 0%, transparent 60%);
            transform: rotate(20deg);
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
        }
        .cta-section h2 {
            font-size: clamp(1.8rem, 3vw, 2.6rem);
            font-weight: 900;
            color: #0A0D10;
            line-height: 1.2;
            margin-bottom: 12px;
        }
        .cta-section p {
            color: rgba(10, 13, 16, 0.75);
            font-size: 16px;
            line-height: 1.7;
            max-width: 640px;
            margin-bottom: 28px;
        }
        .cta-btn {
            display: inline-block;
            background: #0A0D10;
            color: var(--accent);
            font-size: 15px;
            font-weight: 700;
            padding: 14px 36px;
            border-radius: var(--radius-btn);
            transition: transform 0.25s, box-shadow 0.25s;
        }
        .cta-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.3);
        }
        .cta-btn:active { transform: translateY(0); }

        /* ===== FAQ ===== */
        .faq-section { background: var(--bg-primary); }
        .faq-wrap {
            max-width: 880px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--border-color);
        }
        .faq-item:first-child { border-top: 1px solid var(--border-color); }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 8px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            transition: color 0.25s;
            gap: 16px;
            background: none;
            text-align: left;
            width: 100%;
        }
        .faq-question:hover { color: var(--accent); }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            border: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: var(--accent);
            transition: transform 0.3s, background 0.3s, color 0.3s;
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background: var(--accent);
            color: #0A0D10;
            border-color: var(--accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 8px;
        }
        .faq-item.active .faq-answer {
            max-height: 400px;
            padding: 0 8px 20px;
        }
        .faq-answer p {
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.75;
            padding-left: 8px;
            border-left: 2px solid var(--accent);
        }

        /* ===== Footer ===== */
        .site-footer { background: #08090C; border-top: 1px solid var(--border-color); padding-top: 56px; }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-brand .brand { margin-bottom: 16px; }
        .footer-brand .brand-name { font-family: var(--font-display); font-size: 22px; color: var(--text-primary); }
        .footer-brand .brand-name span { color: var(--accent); }
        .footer-desc {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .footer-contact {
            display: flex;
            flex-direction: column;
            gap: 8px;
            font-size: 14px;
            color: var(--text-secondary);
        }
        .footer-contact a { color: var(--text-secondary); transition: color 0.25s; }
        .footer-contact a:hover { color: var(--accent); }
        .footer-contact i { color: var(--accent); margin-right: 6px; width: 16px; }
        .footer-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: 0.03em;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            font-size: 14px;
            color: var(--text-secondary);
            transition: color 0.25s, padding-left 0.25s;
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-copyright {
            border-top: 1px solid var(--border-color);
            padding: 20px 0;
            text-align: center;
        }
        .footer-copyright p {
            font-size: 13px;
            color: var(--text-secondary);
        }

        /* ===== BG decorations ===== */
        .bg-grid {
            position: absolute;
            inset: 0;
            background-image: linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
            background-size: 32px 32px;
            pointer-events: none;
        }
        .section-glow {
            position: absolute;
            top: 20%;
            left: 10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(198, 255, 50, 0.07) 0%, transparent 70%);
            pointer-events: none;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1199px) {
            .focus-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
            .focus-card:last-child { grid-column: span 2; }
        }
        @media (max-width: 991px) {
            .main-nav { display: none; }
            .header-actions .search-box { display: none; }
            .hamburger { display: flex; }
            .header-actions .btn-login { display: none; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .stat-item { border-right: none; border-bottom: 1px solid var(--border-color); padding: 16px 0; }
            .stat-item:nth-child(odd) { border-right: 1px solid var(--border-color); }
            .stat-item:last-child, .stat-item:nth-last-child(2) { border-bottom: none; }
            .preview-layout { grid-template-columns: 1fr; gap: 32px; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
        }
        @media (max-width: 767px) {
            :root { --pad-x: 16px; }
            .site-header { height: 60px; }
            .header-inner { height: 60px; }
            .mobile-menu { top: 60px; }
            .brand-logo { width: 34px; height: 34px; font-size: 20px; border-radius: 8px; }
            .brand-name { font-size: 18px; }
            .header-actions .btn-primary { padding: 8px 14px; font-size: 13px; }
            .page-hero { min-height: 360px; padding: 110px 0 56px; }
            .page-hero h1 { font-size: 2rem; }
            .page-hero .hero-desc { font-size: 15px; }
            .hero-buttons { flex-direction: column; align-items: stretch; }
            .hero-buttons .btn-primary, .hero-buttons .btn-secondary { text-align: center; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .stat-item .stat-num { font-size: 30px; }
            .section-head h2 { font-size: 1.5rem; }
            .timeline { padding-left: 30px; }
            .timeline::before { left: 6px; }
            .timeline-dot { left: -26px; width: 12px; height: 12px; }
            .timeline-card .card-img { height: 160px; }
            .timeline-card .card-body { padding: 16px 18px 20px; }
            .focus-grid { grid-template-columns: 1fr; }
            .focus-card:last-child { grid-column: span 1; }
            .focus-card .focus-img { height: 170px; }
            .preview-image img { height: 220px; }
            .faq-question { font-size: 15px; padding: 16px 4px; }
            .footer-grid { grid-template-columns: 1fr; gap: 24px; }
            .footer-copyright p { font-size: 12px; }
        }
        @media (max-width: 520px) {
            .stats-grid { grid-template-columns: 1fr 1fr; }
            .stat-item { padding: 12px 0; }
            .stat-item .stat-num { font-size: 26px; }
            .header-actions .btn-primary { display: none; }
            .brand-name { font-size: 16px; }
        }

/* roulang page: article */
:root {
  --bg-primary: #0B0C10;
  --bg-card: #14171E;
  --bg-sub: #1D222C;
  --accent: #C6FF32;
  --accent-hover: #D6FF5C;
  --accent-orange: #FF5A2E;
  --text-primary: #F2F3F5;
  --text-secondary: #9AA0AD;
  --text-muted: #6B7280;
  --border: rgba(255,255,255,0.08);
  --success: #20B486;
  --danger: #F0445A;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 8px 24px rgba(0,0,0,0.35);
  --shadow-hover: 0 12px 32px rgba(198,255,50,0.12);
  --font-main: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-display: Impact, "Arial Narrow", sans-serif;
  --container-width: 1200px;
  --header-height: 68px;
  --section-padding: clamp(48px, 8vw, 96px);
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
body {
  font-family: var(--font-main);
  font-size: 1rem;
  line-height: 1.8;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius);
}
a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}
button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}
input {
  font-family: inherit;
  border: none;
  outline: none;
  background: none;
  color: inherit;
}
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}
.section {
  padding-block: var(--section-padding);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--header-height);
  background: rgba(11,12,16,0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.site-header .header-inner {
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.header-left {
  flex-shrink: 0;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}
.brand-logo {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 2px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--accent);
  background: rgba(198,255,50,0.08);
  letter-spacing: 0.02em;
  flex-shrink: 0;
}
.brand-name {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 0.01em;
  line-height: 1.2;
  white-space: nowrap;
}
.brand-name span {
  color: var(--accent);
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}
.main-nav a {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 8px 2px;
  position: relative;
  transition: color 0.2s ease;
  white-space: nowrap;
}
.main-nav a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--accent);
  transition: width 0.3s ease;
  border-radius: 2px;
}
.main-nav a:hover {
  color: var(--accent);
}
.main-nav a:hover::after,
.main-nav a.active::after {
  width: 100%;
}
.main-nav a.active {
  color: var(--accent);
}
.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.search-box {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 8px 16px;
  width: 160px;
  transition: width 0.3s ease, border-color 0.3s ease;
}
.search-box:focus-within {
  width: 240px;
  border-color: var(--accent);
}
.search-box i {
  color: var(--text-muted);
  font-size: 0.875rem;
}
.search-box input {
  font-size: 0.875rem;
  width: 100%;
  background: transparent;
  color: var(--text-primary);
}
.search-box input::placeholder {
  color: var(--text-muted);
}
.btn-login {
  font-size: 0.875rem;
  color: var(--text-secondary);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  transition: all 0.2s ease;
}
.btn-login:hover {
  color: var(--text-primary);
  border-color: var(--border);
  background: var(--bg-card);
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--accent);
  color: #0B0C10;
  font-size: 0.9375rem;
  font-weight: 700;
  padding: 10px 24px;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
  border: 2px solid transparent;
  line-height: 1.4;
}
.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(198,255,50,0.25);
}
.btn-primary:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
}
.btn-sm {
  padding: 8px 20px;
  font-size: 0.875rem;
}
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  padding: 8px;
  background: var(--bg-card);
  transition: all 0.2s ease;
}
.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all 0.3s ease;
}
.hamburger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger.active span:nth-child(2) {
  opacity: 0;
}
.hamburger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Breadcrumb */
.breadcrumb-section {
  padding: 28px 0 0;
  border-bottom: 1px solid var(--border);
}
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.8125rem;
  color: var(--text-muted);
  padding-bottom: 20px;
}
.breadcrumb a {
  color: var(--text-muted);
  transition: color 0.2s ease;
}
.breadcrumb a:hover {
  color: var(--accent);
}
.breadcrumb .sep {
  color: var(--text-muted);
  opacity: 0.5;
}
.breadcrumb .current {
  color: var(--text-secondary);
  max-width: 300px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Article Banner */
.article-banner {
  padding: clamp(48px, 7vw, 80px) 0;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  position: relative;
  border-bottom: 1px solid var(--border);
}
.article-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11,12,16,0.88) 0%, rgba(11,12,16,0.72) 100%);
  z-index: 1;
}
.article-banner .container {
  position: relative;
  z-index: 2;
}
.article-header {
  max-width: 820px;
}
.article-category-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent);
  color: #0B0C10;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 18px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}
.article-title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 900;
  line-height: 1.25;
  letter-spacing: 0.01em;
  margin-bottom: 18px;
}
.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 0.875rem;
  color: var(--text-secondary);
}
.article-meta .meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.article-meta .meta-item i {
  color: var(--accent);
  font-size: 0.8125rem;
}
.article-meta .meta-category-text {
  color: var(--accent);
  font-weight: 600;
}

/* Article Main */
.article-main {
  padding: clamp(40px, 6vw, 64px) 0;
}
.article-layout {
  max-width: 820px;
  margin: 0 auto;
}
.article-body {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-primary);
}
.article-body > * + * {
  margin-top: 1.5em;
}
.article-body p {
  color: rgba(242,243,245,0.88);
}
.article-body h2 {
  font-size: 1.5rem;
  font-weight: 800;
  line-height: 1.3;
  margin-top: 2em;
  padding-bottom: 0.5em;
  border-bottom: 1px solid var(--border);
}
.article-body h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-top: 1.8em;
}
.article-body img {
  border-radius: var(--radius);
  margin: 1.5em auto;
}
.article-body blockquote {
  border-left: 3px solid var(--accent);
  background: var(--bg-card);
  padding: 16px 20px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-secondary);
  font-style: italic;
}
.article-body ul,
.article-body ol {
  padding-left: 1.5em;
}
.article-body ul li,
.article-body ol li {
  margin-bottom: 0.5em;
  color: rgba(242,243,245,0.85);
}
.article-body table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  margin: 1.5em 0;
}
.article-body table th {
  background: var(--bg-sub);
  font-weight: 700;
  text-align: left;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  color: var(--text-primary);
}
.article-body table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
}
.article-body a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.article-body a:hover {
  color: var(--accent-hover);
}

/* Article Not Found */
.article-not-found {
  text-align: center;
  padding: clamp(48px, 8vw, 80px) 24px;
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px dashed var(--border);
  max-width: 640px;
  margin: 0 auto;
}
.article-not-found .not-found-icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: rgba(198,255,50,0.08);
  border: 2px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  font-size: 1.75rem;
  color: var(--accent);
}
.article-not-found h2 {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 12px;
}
.article-not-found p {
  color: var(--text-secondary);
  margin-bottom: 28px;
}

/* Article Tags & Footer */
.article-footer-links {
  border-top: 1px solid var(--border);
  margin-top: 48px;
  padding-top: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.article-tags {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}
.article-tags .tag-label {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-right: 4px;
}
.article-tags .tag {
  display: inline-block;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 4px 14px;
  font-size: 0.75rem;
  color: var(--text-secondary);
  transition: all 0.2s ease;
}
.article-tags .tag:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent);
  padding: 10px 20px;
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}
.back-link:hover {
  background: rgba(198,255,50,0.1);
  transform: translateX(-2px);
}
.back-link:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
}

/* Related */
.related-section {
  padding: clamp(48px, 8vw, 80px) 0;
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.related-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
}
.related-header h2 {
  font-size: 1.75rem;
  font-weight: 800;
  position: relative;
  padding-left: 16px;
}
.related-header h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 24px;
  background: var(--accent);
  border-radius: 4px;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.related-card {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}
.related-card:hover {
  border-color: rgba(198,255,50,0.3);
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}
.related-card:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
}
.related-card .card-img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 0;
}
.related-card .card-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.related-card .card-tag {
  font-size: 0.75rem;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 8px;
}
.related-card h3 {
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 12px;
  color: var(--text-primary);
  transition: color 0.2s ease;
}
.related-card:hover h3 {
  color: var(--accent);
}
.related-card .card-meta {
  margin-top: auto;
  font-size: 0.8125rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 10px;
}
.related-card .card-meta i {
  color: var(--text-muted);
}

/* CTA */
.article-cta {
  padding: clamp(48px, 8vw, 80px) 0;
  background: var(--accent);
  position: relative;
  overflow: hidden;
}
.article-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(11,12,16,0.06) 25%, transparent 25%),
              linear-gradient(225deg, rgba(11,12,16,0.06) 25%, transparent 25%);
  background-size: 24px 24px;
  opacity: 0.4;
  pointer-events: none;
}
.article-cta .cta-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}
.article-cta h2 {
  font-size: clamp(1.5rem, 3.5vw, 2.25rem);
  font-weight: 900;
  color: #0B0C10;
  line-height: 1.3;
  margin-bottom: 12px;
}
.article-cta p {
  font-size: 1rem;
  color: rgba(11,12,16,0.75);
  margin-bottom: 28px;
  line-height: 1.7;
}
.article-cta .btn-cta-dark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: #0B0C10;
  color: var(--accent);
  font-size: 0.9375rem;
  font-weight: 700;
  padding: 14px 36px;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
  border: 2px solid transparent;
}
.article-cta .btn-cta-dark:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.2);
  background: #1a1c23;
}
.article-cta .btn-cta-dark:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
}

/* Footer */
.site-footer {
  background: #08090C;
  border-top: 1px solid var(--border);
  padding-top: 64px;
}
.site-footer .footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
}
.footer-brand .brand {
  margin-bottom: 16px;
}
.footer-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}
.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.8125rem;
  color: var(--text-secondary);
}
.footer-contact a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary);
  transition: color 0.2s ease;
}
.footer-contact a:hover {
  color: var(--accent);
}
.footer-contact i {
  color: var(--accent);
  width: 16px;
}
.footer-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}
.footer-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 24px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.footer-links a {
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.footer-links a:hover {
  color: var(--accent);
  transform: translateX(4px);
}
.footer-copyright {
  border-top: 1px solid var(--border);
  padding: 20px 0;
  text-align: center;
  font-size: 0.8125rem;
  color: var(--text-muted);
}
.footer-copyright p {
  line-height: 1.6;
}

/* Responsive */
@media (max-width: 1200px) {
  .footer-grid {
    grid-template-columns: 1.2fr 1fr 1fr;
    row-gap: 32px;
  }
  .footer-brand {
    grid-column: 1 / -1;
  }
}
@media (max-width: 992px) {
  .hamburger {
    display: flex;
  }
  .main-nav {
    display: none;
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--bg-card);
    flex-direction: column;
    padding: 24px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
    z-index: 999;
    gap: 16px;
    align-items: stretch;
  }
  .main-nav.open {
    display: flex;
  }
  .main-nav a {
    font-size: 1rem;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
  .main-nav a:last-child {
    border-bottom: none;
  }
  .main-nav a::after {
    display: none;
  }
  .main-nav a.active {
    color: var(--accent);
  }
  .search-box {
    width: 40px;
    padding: 8px;
    justify-content: center;
  }
  .search-box input {
    display: none;
  }
  .search-box:focus-within {
    width: 40px;
  }
  .header-right .btn-login {
    display: none;
  }
  .related-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .article-cta .cta-content {
    padding: 0 24px;
  }
}
@media (max-width: 768px) {
  .container {
    padding: 0 16px;
  }
  .brand-name {
    font-size: 1.1rem;
  }
  .header-right .btn-primary {
    display: none;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .article-meta {
    gap: 14px;
    font-size: 0.8125rem;
  }
  .article-footer-links {
    flex-direction: column;
    align-items: flex-start;
  }
  .back-link {
    width: 100%;
    justify-content: center;
  }
}
@media (max-width: 520px) {
  .brand-name {
    font-size: 1rem;
  }
  .brand-logo {
    width: 34px;
    height: 34px;
    font-size: 1.1rem;
  }
  .article-title {
    font-size: 1.5rem;
  }
  .related-card h3 {
    font-size: 0.9375rem;
  }
}

/* roulang page: category2 */
:root {
  --bg-primary: #0B0C10;
  --bg-card: #14171E;
  --bg-surface: #1D222C;
  --bg-deep: #08090C;
  --accent: #C6FF32;
  --accent-hover: #D6FF5C;
  --accent-dark: #131B00;
  --accent-2: #FF5A2E;
  --text-primary: #F2F3F5;
  --text-secondary: #9AA0AD;
  --border: rgba(255,255,255,0.08);
  --success: #20B486;
  --warning: #FF5A2E;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --shadow-default: 0 8px 24px rgba(0,0,0,0.35);
  --shadow-hover: 0 12px 32px rgba(198,255,50,0.12);
  --section-space: clamp(48px, 8vw, 96px);
  --container-max: 1200px;
  --header-height: 68px;
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-display: "Barlow Condensed", Impact, "Arial Narrow", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

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

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

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.3s ease, background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
}

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

input {
  font-family: inherit;
  border: none;
  outline: none;
  background: none;
  color: inherit;
}

ul, ol {
  list-style: none;
}

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

.section {
  padding-block: var(--section-space);
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto clamp(32px, 5vw, 56px);
}

.section-tag {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--accent);
  background: rgba(198,255,50,0.1);
  border: 1px solid rgba(198,255,50,0.25);
  padding: 4px 16px;
  border-radius: 100px;
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}

.section-header h2 {
  font-size: clamp(1.75rem, 3vw, 2.2rem);
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 12px;
}

.section-header p {
  color: var(--text-secondary);
  font-size: 1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.4;
  transition: all 0.3s ease;
  cursor: pointer;
  white-space: nowrap;
  border: 1px solid transparent;
}

.btn:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
}

.btn-primary {
  background: var(--accent);
  color: var(--accent-dark);
}

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

.btn-primary:active {
  transform: translateY(0);
  box-shadow: none;
}

.btn-ghost {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--border);
}

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-ghost:active {
  transform: scale(0.97);
}

.btn-dark {
  background: var(--bg-deep);
  color: var(--accent);
  border: 1px solid var(--accent);
}

.btn-dark:hover {
  background: var(--accent);
  color: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(198,255,50,0.25);
}

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

.btn svg, .btn i {
  font-size: 0.9rem;
}

/* ===== Header & Nav ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background: rgba(11,12,16,0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.site-header.scrolled {
  background: rgba(11,12,16,0.92);
  box-shadow: 0 4px 24px rgba(0,0,0,0.4);
}

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

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.brand-logo {
  width: 40px;
  height: 40px;
  border: 2px solid var(--accent);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  font-weight: 900;
  font-family: var(--font-display);
  color: var(--accent);
  background: rgba(198,255,50,0.08);
  line-height: 1;
}

.brand-name {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.brand-name span {
  color: var(--accent);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  justify-content: center;
}

.main-nav a {
  position: relative;
  padding: 8px 16px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-secondary);
  border-radius: 8px;
  transition: color 0.3s ease, background 0.3s ease;
}

.main-nav a:hover {
  color: var(--accent);
  background: rgba(198,255,50,0.06);
}

.main-nav a.active {
  color: var(--accent);
}

.main-nav a.active::after {
  content: '';
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 2px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.search-box {
  position: relative;
}

.search-box input {
  width: 160px;
  height: 38px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 0 40px 0 16px;
  font-size: 0.875rem;
  color: var(--text-primary);
  transition: all 0.3s ease;
}

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

.search-box input:focus {
  border-color: var(--accent);
  width: 240px;
  box-shadow: 0 0 0 3px rgba(198,255,50,0.1);
}

.search-box i {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-secondary);
  font-size: 0.875rem;
  pointer-events: none;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-surface);
}

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

.hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile nav */
.mobile-nav {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  z-index: 999;
  background: var(--bg-deep);
  border-bottom: 1px solid var(--border);
  padding: 16px 24px 24px;
  transform: translateY(-120%);
  transition: transform 0.35s ease;
}

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

.mobile-nav a {
  display: block;
  padding: 12px 16px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-secondary);
  border-radius: 8px;
  border-bottom: 1px solid var(--border);
}

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

.mobile-nav a:hover,
.mobile-nav a.active {
  color: var(--accent);
  background: rgba(198,255,50,0.06);
}

.mobile-nav .btn {
  margin-top: 16px;
  width: 100%;
}

/* ===== Hero ===== */
.page-hero {
  position: relative;
  background: url('/assets/images/backpic/back-3.webp') no-repeat center center/cover;
  min-height: 520px;
  display: flex;
  align-items: center;
  padding-top: calc(var(--header-height) + 40px);
  padding-bottom: 40px;
  isolation: isolate;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11,12,16,0.82) 0%, rgba(11,12,16,0.65) 50%, var(--bg-primary) 100%);
  z-index: -1;
}

.page-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(198,255,50,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(198,255,50,0.035) 1px, transparent 1px);
  background-size: 32px 32px;
  z-index: -1;
}

.hero-content {
  max-width: 780px;
}

.hero-content .hero-tag {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--accent);
  background: rgba(198,255,50,0.1);
  border: 1px solid rgba(198,255,50,0.25);
  padding: 5px 16px;
  border-radius: 100px;
  margin-bottom: 20px;
  letter-spacing: 0.05em;
}

.hero-content h1 {
  font-size: clamp(2.2rem, 5.5vw, 3.8rem);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -0.01em;
}

.hero-content h1 span {
  color: var(--accent);
}

.hero-content .hero-desc {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-secondary);
  max-width: 640px;
  margin-bottom: 32px;
}

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

.hero-stats {
  display: flex;
  gap: 0;
  margin-top: 48px;
  border-top: 1px solid var(--border);
  padding-top: 24px;
  max-width: 680px;
}

.hero-stat {
  flex: 1;
  padding: 0 24px;
  border-right: 1px solid var(--border);
}

.hero-stat:first-child {
  padding-left: 0;
}

.hero-stat:last-child {
  border-right: none;
}

.hero-stat .num {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1.2;
}

.hero-stat .label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* ===== Podium ===== */
.podium-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: end;
}

.podium-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  position: relative;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
  clip-path: polygon(0 0, 96% 0, 100% 6%, 100% 100%, 0 100%);
}

.podium-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(198,255,50,0.3);
}

.podium-card.first {
  background: linear-gradient(180deg, #1D222C 0%, #14171E 100%);
  border: 2px solid var(--accent);
  transform: scale(1.04);
  z-index: 2;
}

.podium-card.first:hover {
  transform: scale(1.04) translateY(-4px);
}

.podium-card.second .podium-rank,
.podium-card.third .podium-rank {
  color: rgba(255,255,255,0.15);
}

.podium-rank {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 16px;
  opacity: 0.9;
}

.podium-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.podium-value {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1.2;
  margin-bottom: 4px;
}

.first .podium-value {
  color: var(--accent);
}

.second .podium-value,
.third .podium-value {
  color: var(--text-primary);
}

.podium-sub {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.podium-card ul {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.podium-card ul li {
  font-size: 0.875rem;
  color: var(--text-secondary);
  padding: 4px 0 4px 20px;
  position: relative;
}

.podium-card ul li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

.first ul li::before {
  color: var(--accent);
}

.podium-badge {
  position: absolute;
  top: 24px;
  right: 24px;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 4px 12px;
  border-radius: 100px;
  background: var(--accent);
  color: var(--accent-dark);
  letter-spacing: 0.05em;
}

.first .podium-badge {
  background: var(--accent-2);
  color: #fff;
}

/* ===== Reward Detail ===== */
.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.detail-media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-default);
}

.detail-media img {
  width: 100%;
  height: 380px;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.detail-media:hover img {
  transform: scale(1.03);
}

.detail-media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(11,12,16,0.6) 100%);
  pointer-events: none;
}

.detail-content h2 {
  font-size: clamp(1.6rem, 2.5vw, 2rem);
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 16px;
}

.detail-content > p {
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.detail-list {
  margin-bottom: 32px;
}

.detail-list li {
  position: relative;
  padding: 10px 0 10px 32px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  border-bottom: 1px solid var(--border);
}

.detail-list li:last-child {
  border-bottom: none;
}

.detail-list li i {
  position: absolute;
  left: 0;
  top: 14px;
  color: var(--accent);
  width: 20px;
  text-align: center;
}

/* ===== Rules ===== */
.rules-section {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.rules-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.rule-item {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  display: flex;
  gap: 20px;
  transition: all 0.3s ease;
}

.rule-item:hover {
  border-color: rgba(198,255,50,0.25);
  box-shadow: var(--shadow-hover);
}

.rule-num {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 2px solid rgba(198,255,50,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(198,255,50,0.06);
}

.rule-item h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.rule-item p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

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

.flow-steps::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 12%;
  right: 12%;
  height: 2px;
  background: repeating-linear-gradient(90deg, rgba(198,255,50,0.3) 0 8px, transparent 8px 16px);
  z-index: 0;
}

.flow-step {
  position: relative;
  z-index: 1;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 32px 20px 24px;
  text-align: center;
  transition: all 0.3s ease;
}

.flow-step:hover {
  border-color: rgba(198,255,50,0.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.flow-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--accent-dark);
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  box-shadow: 0 0 0 6px rgba(198,255,50,0.1);
}

.flow-step h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.flow-step p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ===== FAQ ===== */
.faq-section .container.narrow {
  max-width: 880px;
}

.faq-list {
  border-top: 1px solid var(--border);
}

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

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 20px 16px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  text-align: left;
  transition: color 0.3s ease, background 0.3s ease;
  cursor: pointer;
}

.faq-question:hover {
  color: var(--accent);
  background: rgba(198,255,50,0.03);
}

.faq-question:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
  border-radius: var(--radius-sm);
}

.faq-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--border);
  color: var(--accent);
  font-size: 1.1rem;
  font-weight: 300;
  transition: transform 0.3s ease, background 0.3s ease, border-color 0.3s ease;
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 16px;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 0 16px 20px;
}

.faq-answer p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ===== CTA ===== */
.cta-section {
  position: relative;
  overflow: hidden;
  background: var(--accent);
  padding: clamp(56px, 8vw, 96px) 0;
  text-align: center;
  clip-path: polygon(0 0, 100% 0, 100% 90%, 0 100%);
  margin-bottom: -1px;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -20%;
  width: 140%;
  height: 200%;
  background: repeating-linear-gradient(135deg, rgba(0,0,0,0.04) 0 2px, transparent 2px 16px);
  pointer-events: none;
}

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

.cta-section h2 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 900;
  color: var(--accent-dark);
  line-height: 1.3;
  margin-bottom: 12px;
}

.cta-section p {
  font-size: 1.05rem;
  color: rgba(0,0,0,0.6);
  margin-bottom: 28px;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--bg-deep);
  border-top: 1px solid var(--border);
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}

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

.footer-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

.footer-contact {
  margin-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-contact a,
.footer-contact span {
  font-size: 0.875rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
}

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

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

.footer-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--text-primary);
}

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

.footer-links a,
.footer-links span {
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: color 0.3s ease, padding-left 0.3s ease;
}

.footer-links a:hover {
  color: var(--accent);
  padding-left: 4px;
}

.footer-links span {
  line-height: 1.8;
}

.footer-copyright {
  border-top: 1px solid var(--border);
  padding: 20px 0;
  text-align: center;
}

.footer-copyright p {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* ===== Responsive ===== */
@media (max-width: 1199px) {
  .podium-grid {
    gap: 16px;
  }
  .podium-card.first {
    transform: scale(1.02);
  }
  .podium-card.first:hover {
    transform: scale(1.02) translateY(-4px);
  }
}

@media (max-width: 991px) {
  .main-nav {
    display: none;
  }
  .hamburger {
    display: flex;
  }
  .mobile-nav {
    display: block;
  }
  .header-actions .search-box {
    display: none;
  }
  .header-actions .btn-ghost {
    display: none;
  }
  .podium-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin: 0 auto;
  }
  .podium-card.first {
    transform: scale(1);
    order: -1;
  }
  .podium-card.first:hover {
    transform: scale(1) translateY(-4px);
  }
  .detail-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .detail-media img {
    height: 300px;
  }
  .rules-grid {
    grid-template-columns: 1fr;
  }
  .flow-steps {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  .flow-steps::before {
    display: none;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 767px) {
  .container {
    padding: 0 20px;
  }
  .hero-btns {
    flex-direction: column;
    align-items: stretch;
  }
  .hero-btns .btn {
    width: 100%;
  }
  .hero-stats {
    flex-direction: column;
    gap: 16px;
    margin-top: 32px;
  }
  .hero-stat {
    border-right: none;
    border-bottom: 1px solid var(--border);
    padding: 12px 0;
  }
  .hero-stat:last-child {
    border-bottom: none;
    padding-bottom: 0;
  }
  .hero-stat:first-child {
    padding-top: 0;
  }
  .flow-steps {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
    padding-bottom: 24px;
  }
  .footer-copyright {
    padding: 16px 0;
  }
}

@media (max-width: 575px) {
  .header-inner {
    gap: 12px;
  }
  .brand-name {
    font-size: 1rem;
  }
  .brand-logo {
    width: 36px;
    height: 36px;
    font-size: 1.1rem;
  }
  .header-actions .btn-primary {
    padding: 10px 18px;
    font-size: 0.875rem;
  }
  .section-header h2 {
    font-size: 1.5rem;
  }
  .rule-item {
    flex-direction: column;
    gap: 12px;
  }
}

/* roulang page: category3 */
:root {
            --bg: #0B0C10;
            --surface: #14171E;
            --surface-2: #1D222C;
            --accent: #C6FF32;
            --accent-hover: #D6FF5C;
            --accent-orange: #FF5A2E;
            --text: #F2F3F5;
            --text-muted: #9AA0AD;
            --border: rgba(255, 255, 255, 0.08);
            --success: #20B486;
            --warning: #F0445A;
            --radius: 12px;
            --radius-sm: 8px;
            --shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
            --shadow-accent: 0 12px 32px rgba(198, 255, 50, 0.12);
            --spacing: clamp(48px, 8vw, 96px);
            --font-cn: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-num: "Barlow Condensed", "Oswald", Impact, "Arial Narrow", sans-serif;
        }

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

        html {
            font-size: 16px;
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-cn);
            background: var(--bg);
            color: var(--text);
            line-height: 1.8;
            min-height: 100vh;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: var(--accent);
            text-decoration: none;
            transition: color .25s;
        }

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

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

        button {
            cursor: pointer;
        }

        ul,
        ol {
            list-style: none;
        }

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

        /* ========== Header ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 68px;
            background: rgba(11, 12, 16, 0.88);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            z-index: 999;
            transition: background .3s, box-shadow .3s;
        }

        .site-header.scrolled {
            background: rgba(11, 12, 16, 0.96);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
        }

        .header-inner {
            height: 68px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }

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

        .brand-logo {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 2px solid var(--accent);
            border-radius: 10px;
            font-family: var(--font-num);
            font-size: 22px;
            font-weight: 700;
            color: var(--accent);
            background: linear-gradient(135deg, rgba(198, 255, 50, 0.15), transparent);
            line-height: 1;
        }

        .brand-name {
            font-size: 1.15rem;
            font-weight: 800;
            letter-spacing: 0.5px;
            color: var(--text);
            white-space: nowrap;
        }

        .brand-name span {
            color: var(--accent);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 24px;
        }

        .main-nav a {
            position: relative;
            color: var(--text-muted);
            font-size: 0.95rem;
            font-weight: 500;
            padding: 6px 2px;
            white-space: nowrap;
            transition: color .25s;
        }

        .main-nav a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 100%;
            height: 2px;
            background: var(--accent);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform .3s;
        }

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

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

        .main-nav a.active {
            color: var(--accent);
        }

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

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .search-box {
            position: relative;
            display: flex;
            align-items: center;
        }

        .search-input {
            width: 160px;
            height: 38px;
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 0 40px 0 16px;
            font-size: 0.875rem;
            color: var(--text);
            background: var(--surface);
            transition: width .35s, border-color .25s, box-shadow .25s;
            outline: none;
        }

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

        .search-input:focus {
            width: 240px;
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(198, 255, 50, 0.15);
        }

        .search-icon {
            position: absolute;
            right: 14px;
            color: var(--text-muted);
            font-size: 0.875rem;
            pointer-events: none;
        }

        .btn-login {
            color: var(--text-muted);
            font-size: 0.9rem;
            font-weight: 500;
            padding: 8px 4px;
            transition: color .25s;
            white-space: nowrap;
        }

        .btn-login:hover {
            color: var(--accent);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 700;
            border-radius: var(--radius-sm);
            transition: background .3s, color .3s, transform .2s, box-shadow .3s, border-color .3s;
            outline: none;
            white-space: nowrap;
        }

        .btn:focus-visible {
            outline: 2px solid #fff;
            outline-offset: 2px;
        }

        .btn-primary {
            background: var(--accent);
            color: #0B0C10;
            border: 2px solid var(--accent);
            padding: 12px 28px;
            font-size: 1rem;
            box-shadow: 0 4px 16px rgba(198, 255, 50, 0.15);
        }

        .btn-primary:hover {
            background: var(--accent-hover);
            border-color: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(198, 255, 50, 0.22);
            color: #0B0C10;
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(198, 255, 50, 0.15);
        }

        .btn-outline {
            background: transparent;
            color: var(--text);
            border: 2px solid rgba(255, 255, 255, 0.25);
            padding: 12px 28px;
            font-size: 1rem;
        }

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

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

        .btn-dark {
            background: #101116;
            color: var(--text);
            border: 2px solid #101116;
            padding: 14px 40px;
            font-size: 1.05rem;
        }

        .btn-dark:hover {
            background: #1D222C;
            border-color: #1D222C;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
            color: #fff;
        }

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

        .btn-sm-head {
            padding: 8px 20px;
            font-size: 0.9rem;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--border);
            border-radius: 10px;
            background: var(--surface);
            transition: border-color .3s, background .3s;
        }

        .nav-toggle span {
            width: 20px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: transform .3s, opacity .3s;
        }

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

        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

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

        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ========== Page Hero ========== */
        .page-hero {
            position: relative;
            padding: 140px 0 80px;
            overflow: hidden;
            background:
                linear-gradient(rgba(11, 12, 16, 0.85), rgba(11, 12, 16, 0.92)),
                url('/assets/images/backpic/back-2.png') center/cover no-repeat;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
            background-size: 32px 32px;
            pointer-events: none;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            top: -20%;
            right: -10%;
            width: 560px;
            height: 560px;
            background: radial-gradient(circle, rgba(198, 255, 50, 0.18), transparent 65%);
            pointer-events: none;
        }

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

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.875rem;
            color: var(--text-muted);
            margin-bottom: 24px;
        }

        .breadcrumb a {
            color: var(--text-muted);
        }

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

        .breadcrumb span {
            color: rgba(255, 255, 255, 0.4);
        }

        .page-hero h1 {
            font-size: clamp(2.2rem, 5vw, 3.6rem);
            font-weight: 900;
            line-height: 1.2;
            letter-spacing: 1px;
            max-width: 780px;
            margin-bottom: 20px;
        }

        .page-hero h1 .highlight {
            color: var(--accent);
        }

        .page-hero .lead {
            font-size: 1.075rem;
            color: var(--text-muted);
            max-width: 620px;
            line-height: 1.9;
            margin-bottom: 36px;
        }

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

        /* ========== Stats Bar ========== */
        .stats-bar {
            border-bottom: 1px solid var(--border);
            background: var(--surface);
        }

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

        .stat-item {
            padding: 28px 24px;
            text-align: center;
            border-left: 1px solid var(--border);
        }

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

        .stat-num {
            display: block;
            font-family: var(--font-num);
            font-size: 2.6rem;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.1;
            letter-spacing: 1px;
        }

        .stat-label {
            display: block;
            margin-top: 8px;
            font-size: 0.875rem;
            color: var(--text-muted);
        }

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

        .section-alt {
            background: var(--surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .section-head {
            max-width: 760px;
            margin: 0 auto 56px;
            text-align: center;
        }

        .section-head.left {
            margin-left: 0;
            text-align: left;
        }

        .section-head h2 {
            font-size: 1.75rem;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .section-head p {
            color: var(--text-muted);
            font-size: 1rem;
            line-height: 1.8;
        }

        /* ========== Podium ========== */
        .podium-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            align-items: end;
            gap: 24px;
            max-width: 1000px;
            margin: 0 auto;
        }

        .podium-card {
            background: var(--surface-2);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 36px 28px 32px;
            position: relative;
            text-align: center;
            transition: transform .3s, box-shadow .3s, border-color .3s;
            clip-path: polygon(0 0, 96% 0, 100% 6%, 100% 100%, 0 100%);
        }

        .podium-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-accent);
        }

        .podium-second {
            padding-bottom: 28px;
        }

        .podium-third {
            padding-bottom: 28px;
        }

        .podium-first {
            background: linear-gradient(180deg, rgba(198, 255, 50, 0.12), var(--surface-2) 60%);
            border-color: rgba(198, 255, 50, 0.4);
            transform: scale(1.04);
            z-index: 2;
            box-shadow: var(--shadow-accent);
            padding-top: 48px;
            padding-bottom: 44px;
        }

        .podium-first:hover {
            transform: scale(1.04) translateY(-6px);
        }

        .podium-badge {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 2px;
            padding: 4px 14px;
            border-radius: 30px;
            background: var(--accent);
            color: #0B0C10;
            margin-bottom: 16px;
            text-transform: uppercase;
        }

        .podium-second .podium-badge {
            background: rgba(255, 255, 255, 0.1);
            color: var(--text);
        }

        .podium-third .podium-badge {
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-muted);
        }

        .podium-rank {
            font-family: var(--font-num);
            font-size: 4.5rem;
            font-weight: 700;
            line-height: 1;
            color: rgba(255, 255, 255, 0.1);
            margin-bottom: 4px;
        }

        .podium-first .podium-rank {
            color: var(--accent);
            opacity: 0.5;
        }

        .podium-card h3 {
            font-size: 1.5rem;
            font-weight: 800;
            margin-bottom: 12px;
        }

        .podium-reward {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text);
            line-height: 1.6;
            margin-bottom: 16px;
            min-height: 64px;
        }

        .podium-first .podium-reward {
            color: var(--accent);
        }

        .podium-value {
            display: inline-block;
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--accent-orange);
            background: rgba(255, 90, 46, 0.08);
            border: 1px solid rgba(255, 90, 46, 0.25);
            padding: 4px 14px;
            border-radius: 30px;
            margin-bottom: 16px;
        }

        .podium-second .podium-value {
            color: var(--text-muted);
            background: rgba(255, 255, 255, 0.05);
            border-color: var(--border);
        }

        .podium-third .podium-value {
            color: var(--text-muted);
            background: rgba(255, 255, 255, 0.04);
            border-color: var(--border);
        }

        .podium-condition {
            font-size: 0.875rem;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }

        .podium-condition i {
            color: var(--success);
        }

        .podium-first .podium-condition i {
            color: var(--accent);
        }

        /* ========== Rules ========== */
        .rules-grid {
            display: grid;
            grid-template-columns: 1.3fr 0.7fr;
            gap: 48px;
            align-items: center;
        }

        .rules-list {
            display: flex;
            flex-direction: column;
            gap: 0;
            counter-reset: ruleCounter;
        }

        .rule-item {
            display: flex;
            gap: 20px;
            padding: 24px 0;
            border-bottom: 1px solid var(--border);
            transition: background .25s, padding-left .25s;
        }

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

        .rule-item:hover {
            background: rgba(255, 255, 255, 0.02);
            padding-left: 12px;
        }

        .rule-num {
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: rgba(198, 255, 50, 0.1);
            border: 1px solid rgba(198, 255, 50, 0.3);
            font-family: var(--font-num);
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--accent);
            line-height: 1;
        }

        .rule-content h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .rule-content p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        .rules-visual {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .rules-visual img {
            width: 100%;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            object-fit: cover;
            aspect-ratio: 4/3;
        }

        .rules-tip {
            background: var(--surface-2);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            border-left: 3px solid var(--accent);
        }

        .rules-tip h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 8px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .rules-tip h4 i {
            color: var(--accent);
        }

        .rules-tip p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
        }

        /* ========== Path Steps ========== */
        .path-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            position: relative;
        }

        .path-step {
            background: var(--surface-2);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px 28px;
            position: relative;
            transition: transform .3s, box-shadow .3s, border-color .3s;
        }

        .path-step:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow);
            border-color: var(--accent);
        }

        .path-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: rgba(198, 255, 50, 0.1);
            border: 1px solid rgba(198, 255, 50, 0.25);
            color: var(--accent);
            font-size: 1.4rem;
            margin-bottom: 20px;
        }

        .path-step h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .path-step p {
            color: var(--text-muted);
            font-size: 0.925rem;
            line-height: 1.7;
        }

        .path-arrow {
            position: absolute;
            top: 50%;
            right: -26px;
            transform: translateY(-50%);
            color: var(--accent);
            font-size: 1.5rem;
            z-index: 3;
            opacity: 0.6;
        }

        .path-step:last-child .path-arrow {
            display: none;
        }

        /* ========== FAQ ========== */
        .faq-wrap {
            max-width: 880px;
            margin: 0 auto;
        }

        .faq-item {
            border-bottom: 1px solid var(--border);
            transition: background .3s;
        }

        .faq-item:first-child {
            border-top: 1px solid var(--border);
        }

        .faq-item.open {
            background: var(--surface-2);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding: 22px 16px;
            font-size: 1.05rem;
            font-weight: 600;
            text-align: left;
            color: var(--text);
            transition: color .25s;
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            position: relative;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            transition: background .3s, transform .3s;
        }

        .faq-question .faq-icon::before,
        .faq-question .faq-icon::after {
            content: '';
            position: absolute;
            background: var(--text-muted);
            border-radius: 2px;
            transition: background .3s, transform .3s;
        }

        .faq-question .faq-icon::before {
            width: 10px;
            height: 2px;
        }

        .faq-question .faq-icon::after {
            width: 2px;
            height: 10px;
        }

        .faq-item.open .faq-question .faq-icon::after {
            transform: rotate(90deg);
            opacity: 0;
        }

        .faq-item.open .faq-question .faq-icon::before {
            background: var(--accent);
        }

        .faq-item.open .faq-question .faq-icon {
            background: rgba(198, 255, 50, 0.15);
        }

        .faq-question:focus-visible {
            outline: 2px solid #fff;
            outline-offset: 2px;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease, padding .35s ease;
            padding: 0 16px;
        }

        .faq-item.open .faq-answer {
            max-height: 200px;
            padding: 0 16px 20px;
        }

        .faq-answer p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.8;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: var(--accent);
            background-image: linear-gradient(135deg, var(--accent) 0%, #b4f02a 100%);
            clip-path: polygon(0 0, 96% 0, 100% 6%, 100% 100%, 0 100%);
            padding: 80px 0 90px;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.25), transparent 70%);
            pointer-events: none;
        }

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

        .cta-inner h2 {
            font-size: clamp(1.8rem, 4vw, 2.6rem);
            font-weight: 900;
            color: #0B0C10;
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .cta-inner p {
            font-size: 1.05rem;
            color: rgba(11, 12, 16, 0.75);
            max-width: 520px;
            margin: 0 auto 32px;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: #08090C;
            padding-top: 64px;
            border-top: 4px solid rgba(198, 255, 50, 0.2);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
            gap: 40px;
            padding-bottom: 48px;
        }

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

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

        .footer-desc {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.75;
            margin-bottom: 16px;
            max-width: 320px;
        }

        .footer-contact {
            display: flex;
            flex-direction: column;
            gap: 8px;
            font-size: 0.875rem;
            color: var(--text-muted);
        }

        .footer-contact a,
        .footer-contact span {
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 8px;
            transition: color .25s;
        }

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

        .footer-title {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 18px;
            color: var(--text);
        }

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

        .footer-links a,
        .footer-links span {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: color .25s, padding-left .25s;
        }

        .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }

        .footer-copyright {
            border-top: 1px solid var(--border);
            padding: 20px 0;
            text-align: center;
        }

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

        /* ========== Responsive ========== */
        @media (max-width: 1199px) {
            .search-input {
                width: 130px;
            }
            .search-input:focus {
                width: 180px;
            }
            .main-nav {
                gap: 18px;
            }
            .podium-grid {
                gap: 16px;
            }
        }

        @media (max-width: 991px) {
            .main-nav {
                position: fixed;
                top: 68px;
                left: 0;
                width: 100%;
                background: var(--bg);
                border-bottom: 1px solid var(--border);
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                padding: 12px 24px 20px;
                transform: translateY(-130%);
                opacity: 0;
                pointer-events: none;
                transition: transform .35s, opacity .3s;
                box-shadow: 0 16px 32px rgba(0, 0, 0, 0.5);
                z-index: 998;
            }
            .main-nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .main-nav a {
                display: block;
                width: 100%;
                padding: 14px 0;
                font-size: 1rem;
                border-bottom: 1px solid var(--border);
            }
            .main-nav a:last-child {
                border-bottom: none;
            }
            .main-nav a::after {
                display: none;
            }
            .main-nav a.active {
                color: var(--accent);
                padding-left: 8px;
            }
            .nav-toggle {
                display: flex;
            }
            .search-input {
                width: 140px;
            }
            .search-input:focus {
                width: 160px;
            }
            .btn-login {
                display: none;
            }
            .btn-sm-head {
                padding: 8px 16px;
                font-size: 0.85rem;
            }
            .podium-grid {
                grid-template-columns: 1fr;
                max-width: 520px;
                gap: 20px;
            }
            .podium-first {
                transform: none;
                order: -1;
            }
            .podium-first:hover {
                transform: translateY(-6px);
            }
            .rules-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .rules-visual {
                order: -1;
            }
            .rules-visual img {
                aspect-ratio: 16/9;
            }
            .path-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .path-arrow {
                display: none;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 767px) {
            .header-inner {
                gap: 10px;
            }
            .brand-name {
                font-size: 1rem;
            }
            .brand-logo {
                width: 36px;
                height: 36px;
                font-size: 18px;
            }
            .search-input {
                width: 36px;
                padding: 0;
                border-radius: 50%;
                font-size: 0;
                background: var(--surface);
                cursor: pointer;
                transition: width .35s, border-radius .35s, padding .35s;
            }
            .search-input::placeholder {
                opacity: 0;
            }
            .search-input:focus {
                width: 180px;
                padding: 0 40px 0 16px;
                font-size: 0.875rem;
                border-radius: 20px;
            }
            .search-input:focus::placeholder {
                opacity: 1;
            }
            .search-icon {
                right: 10px;
                font-size: 0.8rem;
            }
            .btn-sm-head {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .page-hero {
                padding: 120px 0 60px;
            }
            .page-hero h1 {
                font-size: clamp(1.9rem, 6vw, 2.4rem);
            }
            .page-hero .lead {
                font-size: 1rem;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stat-item {
                border: none;
                border-bottom: 1px solid var(--border);
                padding: 20px 12px;
            }
            .stat-item:nth-child(odd) {
                border-right: 1px solid var(--border);
            }
            .stat-num {
                font-size: 2rem;
            }
            .section-head {
                margin-bottom: 40px;
            }
            .section-head h2 {
                font-size: 1.45rem;
            }
            .podium-card {
                padding: 28px 20px;
            }
            .rules-tip {
                padding: 20px;
            }
            .cta-section {
                padding: 64px 0 72px;
            }
            .cta-inner h2 {
                font-size: 1.6rem;
            }
            .cta-inner .btn {
                width: 100%;
                max-width: 320px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-desc {
                max-width: 100%;
            }
            .footer-copyright p {
                font-size: 0.78rem;
                line-height: 1.6;
            }
        }

        @media (max-width: 520px) {
            .header-actions {
                gap: 8px;
            }
            .brand-name {
                font-size: 0.95rem;
            }
            .faq-question {
                font-size: 0.95rem;
                padding: 18px 8px;
            }
            .faq-answer p {
                font-size: 0.875rem;
            }
        }

        @media (min-width: 992px) {
            .main-nav {
                position: static;
                flex-direction: row;
            }
        }