/* roulang page: index */
/* ========== Design Tokens ========== */
:root {
  --bg-base: #0B1220;
  --bg-panel: rgba(18, 32, 58, 0.55);
  --bg-panel-solid: #111D33;
  --bg-deep: #0E1728;
  --bg-hover: rgba(255, 255, 255, 0.03);
  --border-glass: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --accent-teal: #35F0C0;
  --accent-teal-dim: rgba(53, 240, 192, 0.14);
  --accent-amber: #F5B971;
  --accent-amber-dim: rgba(245, 185, 113, 0.14);
  --text-main: #E8F0F8;
  --text-secondary: #9DB0C7;
  --text-weak: #5D7390;
  --text-placeholder: #3F5068;
  --success: #2ED47A;
  --warning: #F6A609;
  --error: #E05B5B;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --radius-pill: 999px;
  --shadow-card: 0 12px 36px rgba(0, 0, 0, 0.35);
  --shadow-glow: 0 0 24px rgba(53, 240, 192, 0.28);
  --space-section: 88px;
  --container: 1200px;
  --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif;
  --font-num: "Inter", "DIN Alternate", "Roboto", sans-serif;
  --transition: all 0.25s ease;
}

/* ========== Reset & Base ========== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-cn);
  background-color: var(--bg-base);
  background-image:
    radial-gradient(ellipse 80% 50% at 20% -10%, rgba(28, 68, 109, 0.35) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 110% 20%, rgba(18, 48, 78, 0.25) 0%, transparent 55%);
  color: var(--text-main);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 44px 44px;
  pointer-events: none;
  z-index: 0;
}
a {
  color: var(--accent-teal);
  text-decoration: none;
  transition: var(--transition);
}
a:hover {
  color: var(--accent-teal);
  opacity: 0.86;
}
img {
  max-width: 100%;
  display: block;
}
button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}
ul, ol {
  list-style: none;
}
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 2;
}
.section {
  padding: var(--space-section) 0;
  position: relative;
}
.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 48px;
}
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-teal-dim);
  color: var(--accent-teal);
  font-size: 13px;
  font-weight: 500;
  border-radius: var(--radius-pill);
  padding: 5px 16px;
  margin-bottom: 16px;
  border: 1px solid rgba(53, 240, 192, 0.18);
}
.section-tag::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-teal);
  box-shadow: 0 0 8px var(--accent-teal);
  display: inline-block;
}
.section-title {
  font-size: 32px;
  line-height: 1.3;
  font-weight: 700;
  letter-spacing: 0.02em;
  margin-bottom: 12px;
  color: var(--text-main);
}
.section-title .highlight {
  color: var(--accent-teal);
}
.section-sub {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.8;
}

/* ========== Buttons ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 10px 28px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  white-space: nowrap;
  text-decoration: none;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent-teal) 0%, #2BC9A0 100%);
  color: #07141D;
  box-shadow: var(--shadow-glow);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 32px rgba(53, 240, 192, 0.4);
  color: #07141D;
  opacity: 1;
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 0 16px rgba(53, 240, 192, 0.25);
  filter: brightness(0.92);
}
.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.16);
  color: var(--text-main);
  backdrop-filter: blur(8px);
}
.btn-secondary:hover {
  border-color: rgba(255, 255, 255, 0.35);
  background: rgba(255, 255, 255, 0.09);
  color: var(--text-main);
  transform: translateY(-2px);
  opacity: 1;
}
.btn-secondary:active {
  transform: translateY(0);
}
.btn-ghost {
  background: transparent;
  border: 1px solid var(--border-glass);
  color: var(--text-secondary);
  padding: 8px 18px;
  min-height: 38px;
  font-size: 13px;
  border-radius: var(--radius-sm);
}
.btn-ghost:hover {
  border-color: var(--accent-teal);
  color: var(--accent-teal);
  opacity: 1;
}
.btn-sm {
  min-height: 36px;
  padding: 6px 16px;
  font-size: 13px;
  border-radius: var(--radius-sm);
}

/* ========== Header / Nav ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: 64px;
  background: transparent;
  transition: var(--transition);
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(11, 18, 32, 0.8);
  backdrop-filter: blur(14px);
  border-bottom-color: rgba(255, 255, 255, 0.07);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.2);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent-teal) 0%, #2BC9A0 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  box-shadow: 0 0 18px rgba(53, 240, 192, 0.3);
}
.brand-icon::after {
  content: "";
  width: 16px;
  height: 16px;
  border-radius: 4px;
  background: var(--bg-base);
  position: relative;
  clip-path: polygon(25% 15%, 75% 15%, 75% 40%, 85% 40%, 85% 70%, 75% 70%, 75% 85%, 45% 85%, 45% 70%, 25% 70%, 25% 40%, 35% 40%);
  opacity: 0.9;
}
.brand-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: 0.01em;
  white-space: nowrap;
  line-height: 1.2;
}
.brand-name .dot {
  color: var(--accent-teal);
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 auto;
}
.nav-link {
  color: var(--text-secondary);
  font-size: 14px;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  position: relative;
  transition: var(--transition);
  white-space: nowrap;
}
.nav-link:hover {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.04);
  opacity: 1;
}
.nav-link.active {
  color: var(--accent-teal);
  background: var(--accent-teal-dim);
}
.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 16px;
  height: 2px;
  border-radius: 2px;
  background: var(--accent-teal);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.header-search {
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-pill);
  height: 38px;
  padding: 0 6px 0 14px;
  width: 180px;
  transition: var(--transition);
}
.header-search:focus-within {
  border-color: rgba(53, 240, 192, 0.4);
  box-shadow: 0 0 12px rgba(53, 240, 192, 0.1);
  background: rgba(255, 255, 255, 0.08);
}
.header-search input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-main);
  font-size: 13px;
  min-width: 0;
}
.header-search input::placeholder {
  color: var(--text-placeholder);
}
.header-search button {
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  transition: var(--transition);
}
.header-search button:hover {
  color: var(--accent-teal);
  background: rgba(255, 255, 255, 0.06);
}
.header-cta {
  min-height: 38px;
  padding: 8px 22px;
  font-size: 14px;
}
.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  align-items: center;
  justify-content: center;
  color: var(--text-main);
  transition: var(--transition);
}
.hamburger:hover {
  background: rgba(255, 255, 255, 0.06);
}
.mobile-menu {
  display: none;
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  background: rgba(11, 18, 32, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-glass);
  padding: 16px 24px 24px;
  z-index: 999;
  transform: translateY(-12px);
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}
.mobile-menu.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}
.mobile-menu .nav-link {
  display: block;
  padding: 12px 16px;
  font-size: 16px;
  border-radius: var(--radius-sm);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}
.mobile-menu .nav-link:last-child {
  border-bottom: none;
}
.mobile-menu .nav-link.active {
  background: var(--accent-teal-dim);
}

/* ========== Hero ========== */
.hero {
  min-height: 640px;
  display: flex;
  align-items: center;
  position: relative;
  padding: 40px 0 24px;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  opacity: 0.28;
  pointer-events: none;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--bg-base) 0%, rgba(11, 18, 32, 0.92) 50%, rgba(11, 18, 32, 0.6) 100%);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 55% 45%;
  align-items: center;
  gap: 40px;
  width: 100%;
}
.hero-copy {
  padding-right: 20px;
}
.hero-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(53, 240, 192, 0.1);
  border: 1px solid rgba(53, 240, 192, 0.2);
  color: var(--accent-teal);
  font-size: 13px;
  font-weight: 500;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  margin-bottom: 24px;
}
.hero-label .pulse-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-teal);
  box-shadow: 0 0 10px var(--accent-teal);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.8); }
}
.hero-title {
  font-size: 44px;
  line-height: 1.25;
  font-weight: 800;
  margin-bottom: 20px;
  letter-spacing: 0.01em;
  color: var(--text-main);
}
.hero-title .gradient-text {
  background: linear-gradient(120deg, var(--accent-teal) 0%, #6AE8C9 60%, var(--accent-amber) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subtitle {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 32px;
  max-width: 460px;
}
.hero-actions {
  display: flex;
  gap: 14px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}
.hero-trust {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.trust-item-mini {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
}
.trust-item-mini .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 8px var(--success);
}
.hero-visual {
  position: relative;
}
.hero-visual .img-wrap {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--border-glass);
  box-shadow: var(--shadow-card);
  aspect-ratio: 4 / 3;
}
.hero-visual .img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero-visual .img-wrap::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(145deg, rgba(53, 240, 192, 0.08) 0%, transparent 40%);
}
.hero-glass-card {
  position: absolute;
  bottom: -20px;
  left: -24px;
  background: rgba(18, 32, 58, 0.75);
  backdrop-filter: blur(14px);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  padding: 14px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow-card);
  animation: floatY 3s ease-in-out infinite;
}
@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}
.hero-glass-card .status-ic {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(53, 240, 192, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.hero-glass-card .status-ic svg {
  width: 18px;
  height: 18px;
  color: var(--accent-teal);
}
.hero-glass-card .status-text {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.4;
}
.hero-glass-card .status-text small {
  display: block;
  font-size: 12px;
  color: var(--text-secondary);
  font-weight: 400;
}
.hero-channels {
  position: relative;
  z-index: 2;
  margin-top: 32px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  background: rgba(18, 32, 58, 0.4);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  backdrop-filter: blur(10px);
}
.channel-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  color: var(--text-secondary);
}
.channel-item:hover {
  background: rgba(255, 255, 255, 0.04);
  color: var(--accent-teal);
  transform: translateY(-2px);
}
.channel-item .ch-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: var(--accent-teal-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.channel-item .ch-icon svg {
  width: 16px;
  height: 16px;
  color: var(--accent-teal);
}
.channel-item .ch-name {
  font-size: 14px;
  font-weight: 500;
}

/* ========== Feature Section ========== */
.feature-section {
  background: rgba(255, 255, 255, 0.01);
  border-top: 1px solid var(--border-glass);
  border-bottom: 1px solid var(--border-glass);
}
.feature-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 24px;
}
.feature-card {
  position: relative;
  background: var(--bg-panel);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: var(--transition);
  overflow: hidden;
}
.feature-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-teal), transparent);
  opacity: 0;
  transition: var(--transition);
}
.feature-card:hover {
  border-color: rgba(53, 240, 192, 0.3);
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
}
.feature-card:hover::before {
  opacity: 1;
}
.feature-card.feature-large {
  grid-row: span 2;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: linear-gradient(145deg, rgba(18, 32, 58, 0.7), rgba(10, 20, 36, 0.6));
}
.feature-card.feature-large .feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent-teal), #2BC9A0);
  box-shadow: var(--shadow-glow);
}
.feature-card.feature-large .feature-icon svg {
  width: 26px;
  height: 26px;
  color: #07141D;
}
.feature-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--accent-teal-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  transition: var(--transition);
}
.feature-icon svg {
  width: 20px;
  height: 20px;
  color: var(--accent-teal);
}
.feature-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-main);
}
.feature-desc {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.75;
  margin-bottom: 20px;
}
.feature-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent-teal);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.feature-link:hover {
  gap: 10px;
  opacity: 1;
}
.feature-link svg {
  width: 14px;
  height: 14px;
  transition: var(--transition);
}
.feature-card-sm {
  background: var(--bg-panel);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 24px;
  position: relative;
  transition: var(--transition);
}
.feature-card-sm:hover {
  border-color: rgba(53, 240, 192, 0.3);
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
}
.feature-card-sm .feature-icon {
  width: 38px;
  height: 38px;
  margin-bottom: 14px;
}
.feature-card-sm .feature-title {
  font-size: 16px;
}
.feature-card-sm .feature-desc {
  font-size: 13px;
  margin-bottom: 12px;
}
.feature-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  background: var(--accent-amber-dim);
  color: var(--accent-amber);
  font-size: 11px;
  font-weight: 600;
  padding: 3px 12px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(245, 185, 113, 0.2);
}
.amber-icon {
  background: var(--accent-amber-dim) !important;
}
.tiffany-icon {
  background: var(--accent-teal-dim) !important;
}

/* ========== Scene Section ========== */
.scene-section {
  background: var(--bg-deep);
}
.scene-grid {
  display: grid;
  grid-template-columns: 48% 52%;
  gap: 40px;
  align-items: center;
}
.scene-image-wrap {
  position: relative;
  border-radius: 24px;
  overflow: hidden;
  border: 1px solid var(--border-glass);
  box-shadow: var(--shadow-card);
  aspect-ratio: 16 / 11;
}
.scene-image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.scene-image-wrap:hover img {
  transform: scale(1.02);
}
.scene-image-wrap::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(145deg, transparent 60%, rgba(11, 18, 32, 0.5) 100%);
}
.scene-glass-tag {
  position: absolute;
  top: 20px;
  left: 20px;
  z-index: 2;
  background: rgba(18, 32, 58, 0.7);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(53, 240, 192, 0.25);
  color: var(--accent-teal);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}
.scene-content {
  padding-left: 10px;
}
.scene-list {
  margin-top: 28px;
}
.scene-item {
  display: flex;
  gap: 18px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: var(--transition);
}
.scene-item:last-child {
  border-bottom: none;
}
.scene-item:hover {
  background: rgba(255, 255, 255, 0.02);
  padding-left: 8px;
}
.scene-num {
  font-family: var(--font-num);
  font-size: 22px;
  font-weight: 700;
  color: transparent;
  -webkit-text-stroke: 1px var(--accent-teal);
  min-width: 30px;
  flex-shrink: 0;
  line-height: 1.4;
}
.scene-item-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 4px;
}
.scene-item-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ========== Stats Section ========== */
.stats-section {
  background: linear-gradient(180deg, var(--bg-base) 0%, rgba(18, 32, 58, 0.4) 100%);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 16px;
}
.stat-item {
  background: var(--bg-panel);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  text-align: center;
  transition: var(--transition);
}
.stat-item:hover {
  border-color: rgba(53, 240, 192, 0.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}
.stat-num {
  font-family: var(--font-num);
  font-size: 38px;
  font-weight: 800;
  color: var(--accent-teal);
  line-height: 1.2;
  margin-bottom: 4px;
  display: block;
}
.stat-num .unit {
  font-size: 18px;
  font-weight: 600;
  margin-left: 2px;
  color: var(--accent-amber);
}
.stat-label {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 4px;
}
.stat-note {
  font-size: 12px;
  color: var(--text-weak);
}
.compliance-note {
  text-align: center;
  font-size: 12px;
  color: var(--text-weak);
  margin-top: 24px;
  padding: 12px 24px;
  border: 1px dashed rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.02);
}
.compliance-wrap {
  text-align: center;
}

/* ========== News List Section ========== */
.news-section {
  background: rgba(255, 255, 255, 0.01);
  border-top: 1px solid var(--border-glass);
}
.news-section .section-header-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  max-width: 680px;
  margin: 0 auto 40px;
}
.section-header-row .section-header {
  text-align: left;
  margin: 0;
}
.section-header-row .view-all {
  font-size: 14px;
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-pill);
  transition: var(--transition);
  white-space: nowrap;
}
.section-header-row .view-all:hover {
  color: var(--accent-teal);
  border-color: rgba(53, 240, 192, 0.3);
  background: var(--accent-teal-dim);
  opacity: 1;
}
.news-list {
  max-width: 900px;
  margin: 0 auto;
  background: var(--bg-panel);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.news-list-item {
  display: grid;
  grid-template-columns: 1fr 220px;
  gap: 12px;
  align-items: center;
  padding: 14px 24px;
  min-height: 68px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: var(--transition);
  color: var(--text-main);
  text-decoration: none;
}
.news-list-item:last-child {
  border-bottom: none;
}
.news-list-item:hover {
  background: rgba(255, 255, 255, 0.03);
  opacity: 1;
  padding-left: 28px;
}
.news-list-item:hover .news-title {
  color: var(--accent-teal);
}
.news-main {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}
.news-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
  transition: var(--transition);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.news-summary {
  font-size: 13px;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.news-meta {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  flex-shrink: 0;
}
.news-tag {
  font-size: 12px;
  color: var(--accent-teal);
  background: var(--accent-teal-dim);
  border: 1px solid rgba(53, 240, 192, 0.18);
  padding: 3px 12px;
  border-radius: var(--radius-pill);
  white-space: nowrap;
}
.news-date {
  font-family: var(--font-num);
  font-size: 13px;
  color: var(--text-weak);
  white-space: nowrap;
}
.empty-state {
  padding: 56px 24px;
  text-align: center;
  color: var(--text-secondary);
  font-size: 15px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}
.empty-state .empty-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-weak);
}

/* ========== FAQ Section ========== */
.faq-section {
  background: var(--bg-deep);
}
.faq-wrap {
  max-width: 760px;
  margin: 0 auto;
}
.faq-item {
  background: var(--bg-panel);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover {
  border-color: rgba(53, 240, 192, 0.22);
}
.faq-item.active {
  border-color: rgba(53, 240, 192, 0.35);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}
.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 20px;
  cursor: pointer;
  min-height: 56px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
  transition: var(--transition);
  user-select: none;
}
.faq-q:hover {
  color: var(--accent-teal);
}
.faq-q .faq-arrow {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform 0.3s ease, background 0.3s ease;
}
.faq-q .faq-arrow svg {
  width: 14px;
  height: 14px;
  color: var(--text-secondary);
  transition: var(--transition);
}
.faq-item.active .faq-arrow {
  transform: rotate(180deg);
  background: var(--accent-teal-dim);
}
.faq-item.active .faq-arrow svg {
  color: var(--accent-teal);
}
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
  background: rgba(255, 255, 255, 0.02);
  border-top: 1px solid transparent;
}
.faq-item.active .faq-a {
  max-height: 300px;
  border-top-color: rgba(255, 255, 255, 0.05);
}
.faq-a-inner {
  padding: 16px 20px 20px;
  display: flex;
  gap: 14px;
}
.faq-a-inner::before {
  content: "";
  width: 3px;
  border-radius: 3px;
  background: var(--accent-teal);
  flex-shrink: 0;
  opacity: 0.6;
}
.faq-a-inner p {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.8;
}

/* ========== CTA Section ========== */
.cta-section {
  position: relative;
  background: linear-gradient(145deg, #0D1E35 0%, var(--bg-base) 50%, #0D1E35 100%);
  overflow: hidden;
  text-align: center;
  padding: 72px 0;
}
.cta-section::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(53, 240, 192, 0.1) 0%, transparent 70%);
  pointer-events: none;
}
.cta-inner {
  position: relative;
  z-index: 2;
  max-width: 640px;
  margin: 0 auto;
}
.cta-title {
  font-size: 34px;
  font-weight: 800;
  margin-bottom: 16px;
  color: var(--text-main);
  line-height: 1.3;
}
.cta-desc {
  color: var(--text-secondary);
  font-size: 16px;
  margin-bottom: 32px;
  line-height: 1.8;
}
.cta-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

/* ========== Footer ========== */
.site-footer {
  background: #09101D;
  border-top: 1px solid var(--border-glass);
  padding: 56px 0 24px;
  position: relative;
  z-index: 2;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand .footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.footer-brand-desc {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.7;
  max-width: 240px;
}
.footer-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 16px;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links a {
  color: var(--text-secondary);
  font-size: 14px;
  transition: var(--transition);
}
.footer-links a:hover {
  color: var(--accent-teal);
  padding-left: 4px;
  opacity: 1;
}
.footer-contact p {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.9;
  margin-bottom: 6px;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.footer-copy {
  font-size: 13px;
  color: var(--text-weak);
}
.footer-legal {
  font-size: 13px;
  color: var(--text-weak);
  display: flex;
  gap: 16px;
}
.footer-legal a {
  color: var(--text-weak);
}
.footer-legal a:hover {
  color: var(--accent-teal);
  opacity: 1;
}

/* ========== Floating CTA ========== */
.desktop-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(18, 32, 58, 0.8);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(53, 240, 192, 0.3);
  border-radius: var(--radius-pill);
  padding: 6px 8px 6px 18px;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
}
.desktop-float:hover {
  border-color: rgba(53, 240, 192, 0.6);
  box-shadow: 0 0 24px rgba(53, 240, 192, 0.15);
}
.desktop-float .float-text {
  font-size: 13px;
  color: var(--text-main);
  font-weight: 500;
}
.desktop-float .float-btn {
  min-height: 38px;
  padding: 8px 18px;
  font-size: 13px;
  border-radius: var(--radius-pill);
}
.mobile-float-bar {
  display: none;
}

/* ========== Responsive ========== */
@media (max-width: 1023px) {
  :root {
    --space-section: 64px;
  }
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .hero-copy {
    padding-right: 0;
  }
  .hero-visual {
    max-width: 560px;
  }
  .hero {
    min-height: auto;
    padding-top: 60px;
  }
  .feature-grid {
    grid-template-columns: 1fr 1fr;
  }
  .feature-card.feature-large {
    grid-row: auto;
    grid-column: 1 / -1;
  }
  .scene-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .scene-content {
    padding-left: 0;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .header-search {
    width: 140px;
  }
}

@media (max-width: 767px) {
  :root {
    --space-section: 56px;
  }
  .section-title {
    font-size: 26px;
  }
  .site-header {
    height: 58px;
  }
  .header-inner {
    height: 58px;
    padding: 0 16px;
  }
  .main-nav {
    display: none;
  }
  .header-search {
    display: none;
  }
  .header-cta {
    display: none;
  }
  .hamburger {
    display: flex;
  }
  .mobile-menu {
    display: block;
  }
  .mobile-menu .nav-link {
    font-size: 15px;
  }
  .hero {
    padding-top: 40px;
  }
  .hero-title {
    font-size: 30px;
  }
  .hero-subtitle {
    font-size: 15px;
  }
  .hero-actions .btn {
    flex: 1;
    min-width: 130px;
  }
  .hero-channels {
    grid-template-columns: repeat(2, 1fr);
    padding: 16px;
    gap: 8px;
    margin-bottom: 16px;
  }
  .channel-item {
    padding: 8px;
  }
  .channel-item .ch-name {
    font-size: 13px;
  }
  .hero-glass-card {
    left: 8px;
    bottom: -16px;
  }
  .feature-grid {
    grid-template-columns: 1fr;
  }
  .feature-card.feature-large {
    grid-column: auto;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .stat-num {
    font-size: 28px;
  }
  .news-list-item {
    grid-template-columns: 1fr;
    gap: 6px;
    padding: 16px;
    min-height: auto;
  }
  .news-list-item:hover {
    padding-left: 20px;
  }
  .news-meta {
    justify-content: flex-start;
  }
  .news-title {
    white-space: normal;
  }
  .news-summary {
    white-space: normal;
  }
  .section-header-row {
    flex-direction: column;
    align-items: flex-start !important;
    gap: 12px;
  }
  .cta-title {
    font-size: 26px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  .desktop-float {
    display: none;
  }
  .mobile-float-bar {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 56px;
    z-index: 100;
    background: rgba(11, 18, 32, 0.92);
    backdrop-filter: blur(14px);
    border-top: 1px solid rgba(53, 240, 192, 0.2);
    align-items: center;
    padding: 0 16px;
    gap: 12px;
  }
  .mobile-float-bar .float-txt {
    font-size: 13px;
    color: var(--text-secondary);
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .mobile-float-bar .btn-primary {
    min-height: 40px;
    padding: 8px 24px;
    font-size: 14px;
    flex-shrink: 0;
  }
  body {
    padding-bottom: 72px;
  }
  .faq-a-inner {
    padding: 14px 16px 18px;
  }
  .scene-item {
    padding: 14px 0;
  }
  .scene-num {
    font-size: 18px;
  }
}

@media (max-width: 420px) {
  .hero-channels {
    grid-template-columns: repeat(2, 1fr);
  }
  .channel-item .ch-icon {
    width: 28px;
    height: 28px;
  }
  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
  .hero-title {
    font-size: 26px;
  }
  .btn {
    padding: 10px 20px;
  }
}

/* roulang page: category1 */
/* ============ 设计变量 ============ */
:root {
  --bg: #0B1220;
  --bg-deep: #060B16;
  --primary: #1A3A5C;
  --primary-light: #224C7A;
  --accent: #35F0C0;
  --accent-dark: #27C89A;
  --gold: #F5B971;
  --text: #E8F0F8;
  --text-secondary: #9DB0C7;
  --text-muted: #5D7390;
  --border: rgba(255, 255, 255, 0.08);
  --card-bg: rgba(18, 32, 58, 0.55);
  --glass-bg: rgba(18, 32, 58, 0.7);
  --success: #2ED47A;
  --warning: #F6A609;
  --error: #E05B5B;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-card: 0 12px 40px rgba(0, 0, 0, 0.35);
  --shadow-glow: 0 0 24px rgba(53, 240, 192, 0.35);
  --container: 1200px;
  --space: 80px;
  --font: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

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

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

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

section {
  padding: var(--space) 0;
}

/* ============ 按钮 ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 28px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background-color 0.25s ease, border-color 0.25s ease, filter 0.2s ease;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-dark), var(--accent));
  color: #06251D;
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 34px rgba(53, 240, 192, 0.5);
}

.btn-primary:active {
  filter: brightness(0.9);
  transform: translateY(0);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  border-color: rgba(255, 255, 255, 0.6);
  background: rgba(255, 255, 255, 0.1);
}

.btn-small {
  height: 40px;
  padding: 0 20px;
  font-size: 14px;
}

/* ============ 标签 / 徽章 ============ */
.tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 500;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.tag-hot {
  background: var(--gold);
  color: #241A08;
  font-weight: 600;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(46, 212, 122, 0.12);
  color: var(--success);
  border-radius: 999px;
  padding: 5px 14px;
  font-size: 13px;
  font-weight: 500;
}

.status-badge::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 8px var(--success);
}

/* ============ 导航 ============ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: 64px;
  display: flex;
  align-items: center;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background 0.3s ease, border-color 0.3s ease, backdrop-filter 0.3s ease;
}

.site-header.scrolled {
  background: rgba(11, 18, 32, 0.82);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

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

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

.brand-icon {
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--accent), #A8F5DE);
  position: relative;
  box-shadow: 0 0 18px rgba(53, 240, 192, 0.4);
}

.brand-icon::before {
  content: "";
  position: absolute;
  inset: 7px;
  border-radius: 5px;
  background: var(--bg);
}

.brand-icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  transform: translate(-50%, -50%);
  box-shadow: 0 0 10px var(--accent);
}

.brand-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.01em;
  white-space: nowrap;
}

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

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  height: 42px;
  padding: 0 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: color 0.25s ease, background-color 0.25s ease;
}

.nav-link:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
}

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

.nav-link.active::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 2px;
  height: 2px;
  border-radius: 2px;
  background: var(--accent);
  box-shadow: 0 0 12px rgba(53, 240, 192, 0.6);
}

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

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  position: relative;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
}

.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: var(--text);
  position: absolute;
  left: 50%;
  margin-left: -9px;
  transition: transform 0.3s ease;
}

.nav-toggle span {
  top: 50%;
  margin-top: -1px;
}

.nav-toggle span::before {
  top: -6px;
}

.nav-toggle span::after {
  top: 6px;
}

.nav-toggle.open span {
  background: transparent;
}

.nav-toggle.open span::before {
  transform: rotate(45deg);
  top: 0;
}

.nav-toggle.open span::after {
  transform: rotate(-45deg);
  top: 0;
}

/* ============ 分类横幅 ============ */
.page-banner {
  position: relative;
  padding: 180px 0 110px;
  background: linear-gradient(180deg, rgba(6, 11, 22, 0.72), rgba(11, 18, 32, 0.96)), url('/assets/images/backpic/back-1.png') center / cover no-repeat;
  text-align: center;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}

.page-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}

.page-banner-inner {
  position: relative;
  z-index: 2;
  max-width: 860px;
  margin: 0 auto;
}

.page-banner .breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 20px;
}

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

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

.page-banner h1 {
  font-size: clamp(32px, 5vw, 52px);
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: 0.01em;
  margin-bottom: 20px;
  background: linear-gradient(135deg, #FFFFFF, #A9D8F0);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-banner .banner-sub {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 620px;
  margin: 0 auto 28px;
  line-height: 1.7;
}

.page-banner .banner-tags {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
}

/* ============ 入口指引区 ============ */
.entry-guide {
  background: var(--bg);
}

.section-head {
  margin-bottom: 44px;
  max-width: 720px;
}

.section-head.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-eyebrow {
  display: inline-block;
  color: var(--accent);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.08em;
  margin-bottom: 10px;
}

.section-title {
  font-size: clamp(26px, 3.4vw, 38px);
  line-height: 1.25;
  font-weight: 700;
  margin-bottom: 14px;
}

.section-desc {
  color: var(--text-secondary);
  font-size: 16px;
  line-height: 1.7;
}

.entry-guide-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 24px;
}

.guide-card-main {
  grid-column: span 7;
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--card-bg);
  box-shadow: var(--shadow-card);
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
  min-height: 320px;
  display: flex;
  align-items: flex-end;
}

.guide-card-main:hover {
  transform: translateY(-4px);
  border-color: rgba(53, 240, 192, 0.4);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.4);
}

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

.guide-card-main::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 18, 32, 0.1), rgba(11, 18, 32, 0.92));
}

.guide-card-content {
  position: relative;
  z-index: 2;
  padding: 32px;
}

.guide-card-content .tag {
  margin-bottom: 16px;
}

.guide-card-content h3 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text);
}

.guide-card-content p {
  color: var(--text-secondary);
  font-size: 15px;
  margin-bottom: 20px;
  max-width: 400px;
}

.guide-card-sub {
  grid-column: span 5;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.sub-card {
  flex: 1;
  border-radius: var(--radius-lg);
  background: var(--card-bg);
  border: 1px solid var(--border);
  padding: 28px;
  transition: transform 0.3s ease, border-color 0.3s ease, background-color 0.3s ease;
}

.sub-card:hover {
  transform: translateY(-3px);
  border-color: rgba(53, 240, 192, 0.35);
  background: rgba(22, 38, 68, 0.7);
}

.sub-card .sub-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(53, 240, 192, 0.12);
  color: var(--accent);
  font-size: 20px;
  margin-bottom: 18px;
  border: 1px solid rgba(53, 240, 192, 0.2);
}

.sub-card h3 {
  font-size: 19px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text);
}

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

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

.sub-card .sub-link:hover {
  text-decoration: underline;
}

/* ============ 图文交错区 ============ */
.route-block, .category-block {
  background: var(--bg);
  border-top: 1px solid rgba(255, 255, 255, 0.04);
}

.split-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.split-media {
  position: relative;
  border-radius: 24px;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-card);
}

.split-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 300px;
}

.split-media .media-tag {
  position: absolute;
  top: 20px;
  left: 20px;
  background: rgba(11, 18, 32, 0.72);
  backdrop-filter: blur(10px);
  color: var(--accent);
  border: 1px solid rgba(53, 240, 192, 0.3);
  border-radius: 999px;
  padding: 6px 16px;
  font-size: 13px;
  font-weight: 600;
}

.split-content .section-eyebrow {
  margin-bottom: 8px;
}

.split-content h2 {
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.3;
  font-weight: 700;
  margin-bottom: 16px;
}

.split-content .split-desc {
  color: var(--text-secondary);
  font-size: 15px;
  margin-bottom: 24px;
  line-height: 1.75;
}

.point-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 28px;
}

.point-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  color: var(--text-secondary);
  font-size: 15px;
}

.point-list li .point-num {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  border-radius: 50%;
  background: rgba(53, 240, 192, 0.12);
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
}

/* ============ 分类页 FAQ ============ */
.page-faq-section {
  background: var(--bg-deep);
}

.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 0.3s ease;
}

.faq-item.open {
  border-color: rgba(53, 240, 192, 0.3);
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 22px;
  height: 58px;
  color: var(--text);
  font-size: 16px;
  font-weight: 500;
  text-align: left;
  cursor: pointer;
  background: transparent;
  transition: color 0.25s ease;
}

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

.faq-arrow {
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(45deg);
  transition: transform 0.3s ease;
  flex-shrink: 0;
  margin-top: -4px;
}

.faq-item.open .faq-arrow {
  transform: rotate(225deg);
  margin-top: 6px;
}

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

.faq-item.open .faq-answer {
  max-height: 300px;
}

.faq-answer-inner {
  padding: 0 22px 22px 28px;
  margin-left: 22px;
  border-left: 2px solid var(--accent);
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.75;
}

/* ============ CTA 区 ============ */
.cta-section {
  position: relative;
  padding: 90px 0;
  background: linear-gradient(180deg, var(--bg), rgba(26, 58, 92, 0.35), var(--bg));
  text-align: center;
  overflow: hidden;
}

.cta-section::before {
  content: "";
  position: absolute;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: rgba(53, 240, 192, 0.12);
  filter: blur(90px);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.cta-inner {
  position: relative;
  z-index: 2;
  max-width: 660px;
  margin: 0 auto;
}

.cta-inner h2 {
  font-size: clamp(26px, 3.4vw, 38px);
  line-height: 1.25;
  font-weight: 700;
  margin-bottom: 16px;
}

.cta-inner p {
  color: var(--text-secondary);
  font-size: 16px;
  margin-bottom: 32px;
}

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

/* ============ 页脚 ============ */
.site-footer {
  background: var(--bg-deep);
  border-top: 1px solid var(--border);
  padding: 72px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.brand-icon-small {
  width: 26px;
  height: 26px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), #A8F5DE);
  position: relative;
}

.brand-icon-small::before {
  content: "";
  position: absolute;
  inset: 6px;
  border-radius: 4px;
  background: var(--bg);
}

.brand-icon-small::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  transform: translate(-50%, -50%);
  box-shadow: 0 0 8px var(--accent);
}

.brand-name {
  font-size: 16px;
  font-weight: 700;
}

.footer-brand-desc {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.7;
  max-width: 260px;
}

.footer-title {
  color: var(--text);
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 18px;
}

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

.footer-links a,
.footer-contact p {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.6;
}

.footer-links a {
  display: inline-block;
  transition: color 0.25s ease;
}

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

.footer-bottom {
  padding-top: 28px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-copy {
  color: var(--text-muted);
  font-size: 14px;
}

.footer-legal {
  display: flex;
  gap: 8px;
  color: var(--text-muted);
  font-size: 13px;
}

/* ============ 固定转化条 ============ */
.fixed-action {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 90;
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--glass-bg);
  backdrop-filter: blur(14px);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px 12px 8px 22px;
  box-shadow: var(--shadow-card);
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.fixed-action:hover {
  border-color: rgba(53, 240, 192, 0.4);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
}

.fixed-action-text {
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
}

/* ============ 响应式 ============ */
@media (max-width: 1023px) {
  :root {
    --space: 64px;
  }

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

  .split-row {
    gap: 32px;
  }

  .guide-card-main {
    grid-column: span 12;
  }

  .guide-card-sub {
    grid-column: span 12;
    flex-direction: row;
  }

  .sub-card {
    flex: 1;
  }
}

@media (max-width: 767px) {
  :root {
    --space: 56px;
  }

  .container {
    padding: 0 20px;
  }

  .main-nav {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(11, 18, 32, 0.96);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: stretch;
    padding: 16px 20px 24px;
    gap: 8px;
    transform: translateY(-16px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease, transform 0.3s ease;
    border-radius: 0 0 16px 16px;
  }

  .main-nav.open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  .nav-link {
    height: 50px;
    padding: 0 14px;
    font-size: 16px;
  }

  .nav-link.active::after {
    left: 14px;
    right: auto;
    width: 28px;
  }

  .nav-toggle {
    display: block;
  }

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

  .page-banner {
    padding: 150px 0 72px;
  }

  .page-banner h1 {
    font-size: 32px;
  }

  .page-banner .banner-sub {
    font-size: 15px;
    padding: 0 8px;
  }

  .guide-card-sub {
    flex-direction: column;
  }

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

  .split-media img {
    min-height: 220px;
  }

  .split-content {
    order: 2;
  }

  .split-row.reverse .split-media {
    order: 1;
  }

  .split-row.reverse .split-content {
    order: 2;
  }

  .split-row:not(.reverse) .split-media {
    order: 1;
  }

  .split-row:not(.reverse) .split-content {
    order: 2;
  }

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

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

  .fixed-action {
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 0;
    justify-content: center;
    height: 56px;
    padding: 8px 20px;
    background: rgba(11, 18, 32, 0.92);
    border-left: none;
    border-right: none;
    border-bottom: none;
    backdrop-filter: blur(16px);
  }

  .fixed-action-text {
    display: none;
  }

  body {
    padding-bottom: 72px;
  }

  .faq-answer-inner {
    margin-left: 16px;
    padding-right: 16px;
  }
}

@media (max-width: 520px) {
  .brand-name {
    font-size: 15px;
  }

  .brand-icon {
    width: 26px;
    height: 26px;
  }

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

  .btn {
    width: 100%;
  }

  .guide-card-main {
    min-height: 280px;
  }

  .guide-card-content h3 {
    font-size: 24px;
  }
}

/* roulang page: article */
:root {
  --bg-primary: #0B1220;
  --bg-secondary: #0E1726;
  --bg-deep: #070D18;
  --bg-card: rgba(18, 32, 58, 0.55);
  --bg-card-solid: #13233D;
  --border-light: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(53, 240, 192, 0.45);
  --accent-green: #35F0C0;
  --accent-green-dark: #2BBFA0;
  --accent-gold: #F5B971;
  --text-main: #E8F0F8;
  --text-secondary: #9DB0C7;
  --text-muted: #5D7390;
  --text-disabled: #3F5068;
  --success: #2ED47A;
  --warning: #F6A609;
  --error: #E05B5B;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-card: 0 8px 30px rgba(0, 0, 0, 0.35);
  --shadow-glow: 0 0 24px rgba(53, 240, 192, 0.4);
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
  --font-num: "Inter", "DIN Alternate", "Arial", sans-serif;
  --spacer-lg: 96px;
  --spacer-md: 72px;
  --spacer-sm: 48px;
}
*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-main);
  background-color: var(--bg-primary);
  background-image: radial-gradient(circle at 20% 0%, rgba(34, 76, 122, 0.18) 0%, transparent 45%),
    linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
  background-size: auto, 32px 32px, 32px 32px;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}
a {
  color: var(--accent-green);
  text-decoration: none;
  transition: color 0.25s ease, border-color 0.25s ease, background 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}
a:hover {
  color: #7ff5d8;
}
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent-green);
  outline-offset: 3px;
  border-radius: 4px;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
button,
input {
  font-family: var(--font-sans);
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Header / Nav ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: 64px;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.site-header.scrolled {
  background: rgba(11, 18, 32, 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom-color: var(--border-light);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.header-left {
  display: flex;
  align-items: center;
  gap: 36px;
  flex-shrink: 0;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-icon {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent-green);
  box-shadow: 0 0 14px var(--accent-green), 0 0 28px rgba(53, 240, 192, 0.5);
  animation: pulse-dot 2.4s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { transform: scale(0.85); opacity: 0.7; }
  50% { transform: scale(1.1); opacity: 1; }
}
.brand-name {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: 0.5px;
  white-space: nowrap;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 30px;
}
.nav-link {
  position: relative;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 6px 2px;
  white-space: nowrap;
}
.nav-link:hover {
  color: var(--text-main);
}
.nav-link.active {
  color: var(--accent-green);
}
.nav-link.active::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2px;
  border-radius: 2px;
  background: var(--accent-green);
  box-shadow: 0 0 12px rgba(53, 240, 192, 0.45);
}
.header-right {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 8px;
  cursor: pointer;
  border-radius: 8px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-main);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.nav-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 10px 24px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.25s ease;
  white-space: nowrap;
  text-decoration: none;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent-green), var(--accent-green-dark));
  color: #07131F;
  box-shadow: 0 4px 18px rgba(53, 240, 192, 0.3);
}
.btn-primary:hover {
  transform: translateY(-1px);
  color: #07131F;
  box-shadow: 0 6px 28px rgba(53, 240, 192, 0.45);
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 12px rgba(53, 240, 192, 0.25);
  filter: brightness(0.9);
}
.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-main);
  border-color: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(8px);
}
.btn-secondary:hover {
  transform: translateY(-1px);
  color: var(--text-main);
  border-color: rgba(255, 255, 255, 0.45);
  background: rgba(255, 255, 255, 0.1);
}
.btn-sm {
  min-height: 38px;
  padding: 6px 18px;
  font-size: 14px;
}

/* ===== Article Hero ===== */
.article-hero {
  position: relative;
  padding: 140px 0 72px;
  overflow: hidden;
  background-color: var(--bg-primary);
}
.article-hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  opacity: 0.35;
  z-index: 0;
}
.article-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 18, 32, 0.72) 0%, rgba(11, 18, 32, 0.92) 70%, var(--bg-primary) 100%);
  z-index: 1;
}
.article-hero-content {
  position: relative;
  z-index: 2;
  max-width: 820px;
  margin: 0 auto;
  text-align: center;
}
.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 24px;
  font-size: 14px;
  color: var(--text-muted);
}
.breadcrumb a {
  color: var(--text-secondary);
}
.breadcrumb a:hover {
  color: var(--accent-green);
}
.breadcrumb-sep {
  color: var(--text-disabled);
}
.article-title {
  font-size: 38px;
  font-weight: 700;
  line-height: 1.25;
  margin: 0 0 18px;
  color: var(--text-main);
  letter-spacing: 0.5px;
}
.article-excerpt {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  max-width: 640px;
  margin: 0 auto 24px;
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.7;
}
.article-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 13px;
  color: var(--text-muted);
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  line-height: 1.5;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-secondary);
  border: 1px solid rgba(255, 255, 255, 0.06);
}
.badge-cat {
  color: var(--accent-green);
  background: rgba(53, 240, 192, 0.1);
  border-color: rgba(53, 240, 192, 0.2);
}
.badge-hot {
  background: var(--accent-gold);
  color: #1a1206;
  border-color: transparent;
  font-weight: 600;
}
.meta-time,
.meta-source {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.meta-source::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 8px rgba(46, 212, 122, 0.5);
}

/* ===== Article Main ===== */
.article-main {
  position: relative;
  padding: 24px 0 72px;
}
.article-body {
  max-width: 720px;
  margin: 0 auto;
  padding: 40px 0 24px;
  color: var(--text-main);
  font-size: 16px;
  line-height: 1.8;
}
.article-body p {
  margin: 0 0 24px;
}
.article-body h2 {
  font-size: 24px;
  font-weight: 700;
  line-height: 1.3;
  margin: 48px 0 16px;
  padding-top: 8px;
  letter-spacing: 0.3px;
}
.article-body h3 {
  font-size: 20px;
  font-weight: 600;
  line-height: 1.4;
  margin: 36px 0 14px;
}
.article-body h4 {
  font-size: 17px;
  font-weight: 600;
  margin: 28px 0 10px;
}
.article-body ul,
.article-body ol {
  margin: 16px 0 24px;
  padding-left: 24px;
}
.article-body li {
  margin-bottom: 8px;
}
.article-body li::marker {
  color: var(--accent-green);
}
.article-body blockquote {
  margin: 28px 0;
  padding: 18px 24px;
  background: rgba(255, 255, 255, 0.03);
  border-left: 3px solid var(--accent-green);
  border-radius: 0 12px 12px 0;
  color: var(--text-secondary);
  font-size: 15px;
}
.article-body blockquote p {
  margin: 0;
}
.article-body img {
  border-radius: var(--radius-md);
  margin: 28px 0;
  box-shadow: var(--shadow-card);
}
.article-body a {
  color: var(--accent-green);
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-color: rgba(53, 240, 192, 0.3);
}
.article-body a:hover {
  color: #7ff5d8;
  text-decoration-color: rgba(53, 240, 192, 0.7);
}
.article-body strong {
  color: var(--text-main);
  font-weight: 600;
}
.article-body code {
  background: rgba(255, 255, 255, 0.08);
  padding: 2px 8px;
  border-radius: 6px;
  font-family: "SF Mono", "Cascadia Code", monospace;
  font-size: 14px;
}
.article-body pre {
  background: rgba(7, 13, 24, 0.8);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 20px;
  overflow-x: auto;
  line-height: 1.6;
}
.article-empty {
  text-align: center;
  padding: 64px 24px;
  color: var(--text-muted);
}
.empty-icon {
  display: block;
  width: 48px;
  height: 48px;
  margin: 0 auto 24px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-light);
  position: relative;
}
.empty-icon::before,
.empty-icon::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 2px;
  background: var(--text-disabled);
  border-radius: 2px;
}
.empty-icon::before {
  transform: translate(-50%, -50%) rotate(45deg);
}
.empty-icon::after {
  transform: translate(-50%, -50%) rotate(-45deg);
}
.article-empty p {
  font-size: 16px;
  margin-bottom: 24px;
}

/* ===== Related ===== */
.related-section {
  padding: 72px 0;
  background: var(--bg-secondary);
  border-top: 1px solid rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 36px;
}
.section-title {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.3;
  margin: 0;
  color: var(--text-main);
  position: relative;
}
.section-title::after {
  content: '';
  display: block;
  width: 40px;
  height: 3px;
  margin-top: 10px;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--accent-green), transparent);
}
.section-sub {
  margin: 0;
  color: var(--text-muted);
  font-size: 14px;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.related-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  text-decoration: none;
  color: var(--text-main);
  backdrop-filter: blur(12px);
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.related-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-hover);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
}
.related-card-img {
  height: 172px;
  overflow: hidden;
  background: var(--bg-deep);
}
.related-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.related-card:hover .related-card-img img {
  transform: scale(1.04);
}
.related-card-body {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 20px 22px 24px;
  flex: 1;
}
.related-card-body .badge {
  align-self: flex-start;
}
.related-card-body h3 {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.45;
  margin: 0;
  color: var(--text-main);
}
.related-card-body p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  margin: 0;
}

/* ===== Return ===== */
.return-section {
  padding: 56px 0 24px;
}
.return-box {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ===== CTA ===== */
.cta-section {
  padding: 72px 0 96px;
}
.cta-box {
  position: relative;
  max-width: 860px;
  margin: 0 auto;
  padding: 56px 48px;
  text-align: center;
  background: linear-gradient(135deg, rgba(26, 58, 92, 0.5), rgba(11, 18, 32, 0.8));
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.cta-box::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(53, 240, 192, 0.2), transparent 70%);
}
.cta-box::after {
  content: '';
  position: absolute;
  bottom: -80px;
  left: -80px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(245, 185, 113, 0.12), transparent 70%);
}
.cta-box > * {
  position: relative;
  z-index: 1;
}
.cta-box h2 {
  font-size: 30px;
  font-weight: 700;
  margin: 0 0 12px;
  color: var(--text-main);
}
.cta-box p {
  font-size: 15px;
  color: var(--text-secondary);
  margin: 0 0 28px;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--bg-deep);
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  padding: 64px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.footer-brand-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  margin: 0;
  max-width: 280px;
}
.footer-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
  margin: 0 0 16px;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links a {
  font-size: 14px;
  color: var(--text-secondary);
}
.footer-links a:hover {
  color: var(--accent-green);
}
.footer-contact {
  font-size: 14px;
  color: var(--text-muted);
}
.footer-contact p {
  margin: 0 0 10px;
  line-height: 1.7;
}
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 13px;
  color: var(--text-muted);
}
.footer-legal {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ===== Fixed CTA ===== */
.fixed-cta {
  position: fixed;
  right: 24px;
  bottom: 32px;
  z-index: 999;
}
.fixed-cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 28px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent-green), var(--accent-green-dark));
  color: #07131F;
  font-size: 15px;
  font-weight: 600;
  box-shadow: 0 4px 24px rgba(53, 240, 192, 0.38);
  border: none;
  cursor: pointer;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.fixed-cta-btn:hover {
  transform: translateY(-2px);
  color: #07131F;
  box-shadow: 0 8px 32px rgba(53, 240, 192, 0.5);
}

/* ===== Responsive ===== */
@media (max-width: 1023px) {
  .header-left {
    gap: 24px;
  }
  .main-nav {
    gap: 20px;
  }
  .related-grid {
    gap: 20px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}
@media (max-width: 767px) {
  body {
    padding-bottom: 72px;
  }
  .container {
    padding: 0 20px;
  }
  .site-header {
    height: 60px;
  }
  .header-inner {
    height: 60px;
  }
  .header-left {
    gap: 12px;
  }
  .brand-name {
    font-size: 15px;
    letter-spacing: 0.2px;
  }
  .main-nav {
    display: none;
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    background: rgba(11, 18, 32, 0.97);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding: 16px 24px 24px;
    border-bottom: 1px solid var(--border-light);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
  }
  .main-nav.open {
    display: flex;
  }
  .main-nav .nav-link {
    width: 100%;
    padding: 12px 0;
    font-size: 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  }
  .main-nav .nav-link.active::after {
    display: none;
  }
  .header-right .btn {
    display: none;
  }
  .nav-toggle {
    display: flex;
  }
  .article-hero {
    padding: 110px 0 48px;
  }
  .article-title {
    font-size: 26px;
    line-height: 1.35;
  }
  .article-excerpt {
    font-size: 14px;
    -webkit-line-clamp: 3;
  }
  .article-meta {
    gap: 10px;
    flex-direction: row;
  }
  .article-body {
    font-size: 15px;
    padding: 24px 0 16px;
  }
  .article-body h2 {
    font-size: 20px;
    margin-top: 36px;
  }
  .article-body h3 {
    font-size: 17px;
  }
  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    margin-bottom: 24px;
  }
  .section-title {
    font-size: 22px;
  }
  .related-grid {
    grid-template-columns: 1fr;
  }
  .related-card-img {
    height: 200px;
  }
  .cta-section {
    padding: 48px 0 64px;
  }
  .cta-box {
    padding: 40px 24px;
  }
  .cta-box h2 {
    font-size: 24px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  .fixed-cta {
    left: 0;
    right: 0;
    bottom: 0;
    padding: 8px 20px;
    background: rgba(11, 18, 32, 0.92);
    backdrop-filter: blur(12px);
    border-top: 1px solid var(--border-light);
  }
  .fixed-cta-btn {
    width: 100%;
    min-height: 40px;
    font-size: 15px;
  }
  .return-section {
    padding: 40px 0 16px;
  }
  .return-box {
    flex-direction: column;
    gap: 12px;
  }
  .return-box .btn {
    width: 100%;
  }
}
@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }
  .related-card-body h3 {
    font-size: 16px;
  }
  .cta-box {
    padding: 32px 18px;
  }
  .cta-box h2 {
    font-size: 21px;
  }
}

/* roulang page: category2 */
:root {
            --bg-deep: #0B1220;
            --bg-section: #101B2E;
            --primary-blue: #1A3A5C;
            --primary-blue-light: #224C7A;
            --accent-green: #35F0C0;
            --accent-green-dark: #2BBFA5;
            --accent-gold: #F5B971;
            --card-bg: rgba(18, 32, 58, 0.55);
            --card-border: rgba(255, 255, 255, 0.08);
            --text-main: #E8F0F8;
            --text-secondary: #9DB0C7;
            --text-muted: #5D7390;
            --text-disabled: #3F5068;
            --success: #2ED47A;
            --warning: #F6A609;
            --danger: #E05B5B;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-card: 0 8px 28px rgba(0, 0, 0, 0.25);
            --glow-green: 0 0 24px rgba(53, 240, 192, 0.35);
            --glow-green-hover: 0 0 36px rgba(53, 240, 192, 0.55);
            --font-sans: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', sans-serif;
            --container-w: 1200px;
            --section-space: 84px;
            --header-h: 64px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background-color: var(--bg-deep);
            color: var(--text-main);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            background-image:
                linear-gradient(rgba(255, 255, 255, 0.018) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.018) 1px, transparent 1px);
            background-size: 44px 44px;
            overflow-x: hidden;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease, border-color 0.25s ease, background 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
        }

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

        ul,
        ol {
            list-style: none;
        }

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

        input {
            font-family: inherit;
        }

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

        .section {
            padding: var(--section-space) 0;
            position: relative;
        }

        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 48px;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.06em;
            color: var(--accent-green);
            background: rgba(53, 240, 192, 0.1);
            border: 1px solid rgba(53, 240, 192, 0.25);
            padding: 5px 14px;
            border-radius: 999px;
            margin-bottom: 14px;
        }

        .section-head h2 {
            font-size: 32px;
            line-height: 1.3;
            font-weight: 700;
            letter-spacing: -0.01em;
            margin-bottom: 10px;
        }

        .section-head p {
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.7;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 44px;
            padding: 10px 26px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            white-space: nowrap;
            transition: all 0.3s ease;
            line-height: 1.2;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--accent-green), var(--accent-green-dark));
            color: #0B1220;
            box-shadow: var(--glow-green);
        }

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

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 0 16px rgba(53, 240, 192, 0.25);
        }

        .btn-secondary {
            background: rgba(255, 255, 255, 0.07);
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: var(--text-main);
            backdrop-filter: blur(8px);
        }

        .btn-secondary:hover {
            border-color: rgba(255, 255, 255, 0.5);
            background: rgba(255, 255, 255, 0.12);
            transform: translateY(-1px);
        }

        .btn-lg {
            min-height: 52px;
            padding: 12px 36px;
            font-size: 16px;
            border-radius: 10px;
        }

        .btn-sm {
            min-height: 38px;
            padding: 6px 18px;
            font-size: 14px;
            border-radius: 8px;
        }

        /* ------- Header ------- */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-h);
            background: transparent;
            border-bottom: 1px solid transparent;
            transition: background 0.35s ease, border-color 0.35s ease, backdrop-filter 0.35s ease;
        }

        .site-header.is-scrolled {
            background: rgba(11, 18, 32, 0.8);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom-color: rgba(255, 255, 255, 0.06);
        }

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

        .header-left {
            display: flex;
            align-items: center;
            gap: 32px;
            min-width: 0;
        }

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

        .brand-icon {
            width: 34px;
            height: 34px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--accent-green), var(--accent-green-dark));
            position: relative;
            box-shadow: 0 0 16px rgba(53, 240, 192, 0.4);
            flex-shrink: 0;
        }

        .brand-icon::after {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #0B1220;
            transform: translate(-50%, -50%);
            box-shadow: 0 0 8px rgba(0, 0, 0, 0.4);
        }

        .brand-text {
            font-size: 17px;
            font-weight: 700;
            letter-spacing: 0.02em;
            white-space: nowrap;
            background: linear-gradient(135deg, #FFFFFF, #C8DAEC);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

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

        .nav-link {
            position: relative;
            display: inline-flex;
            align-items: center;
            padding: 8px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            transition: color 0.25s ease, background 0.25s ease;
        }

        .nav-link:hover {
            color: var(--text-main);
            background: rgba(255, 255, 255, 0.04);
        }

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

        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 2px;
            border-radius: 2px;
            background: var(--accent-green);
            box-shadow: 0 0 8px rgba(53, 240, 192, 0.6);
        }

        .header-tools {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }

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

        .header-search input {
            width: 140px;
            height: 38px;
            border-radius: 999px;
            border: 1px solid rgba(255, 255, 255, 0.14);
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-main);
            padding: 0 14px 0 36px;
            font-size: 13px;
            transition: border-color 0.3s ease, box-shadow 0.3s ease, width 0.3s ease;
            outline: none;
        }

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

        .header-search input:focus {
            border-color: var(--accent-green);
            box-shadow: 0 0 14px rgba(53, 240, 192, 0.2);
            width: 180px;
        }

        .header-search i {
            position: absolute;
            left: 14px;
            color: var(--text-muted);
            font-size: 13px;
            pointer-events: none;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            width: 38px;
            height: 38px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            align-items: center;
            justify-content: center;
        }

        .nav-toggle span {
            width: 18px;
            height: 2px;
            background: var(--text-main);
            border-radius: 2px;
            transition: transform 0.3s ease, opacity 0.3s ease;
        }

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

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

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

        /* ------- Category Banner ------- */
        .category-banner {
            position: relative;
            min-height: 460px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 140px 24px 80px;
            background-image: linear-gradient(135deg, rgba(11, 18, 32, 0.93), rgba(26, 55, 90, 0.78)), url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            overflow: hidden;
        }

        .category-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(circle at 60% 40%, rgba(53, 240, 192, 0.08), transparent 60%);
        }

        .banner-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
        }

        .banner-content h1 {
            font-size: 42px;
            line-height: 1.3;
            font-weight: 800;
            letter-spacing: -0.01em;
            margin: 18px 0 14px;
            background: linear-gradient(135deg, #FFFFFF, #C1D4E8);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .banner-sub {
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-secondary);
            max-width: 580px;
            margin: 0 auto 28px;
        }

        .banner-actions {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 26px;
        }

        .banner-meta {
            display: flex;
            gap: 22px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .banner-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .banner-meta i {
            color: var(--accent-green);
            font-size: 12px;
        }

        .badge-hot {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--accent-gold);
            color: #2D1B0A;
            font-size: 13px;
            font-weight: 700;
            padding: 5px 16px;
            border-radius: 999px;
            box-shadow: 0 4px 18px rgba(245, 185, 113, 0.3);
        }

        .badge-cool {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent-green);
            background: rgba(53, 240, 192, 0.1);
            border: 1px solid rgba(53, 240, 192, 0.2);
            padding: 3px 12px;
            border-radius: 999px;
            letter-spacing: 0.03em;
        }

        .badge-gold {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent-gold);
            background: rgba(245, 185, 113, 0.12);
            border: 1px solid rgba(245, 185, 113, 0.25);
            padding: 3px 12px;
            border-radius: 999px;
            letter-spacing: 0.03em;
        }

        /* ------- Guide Cards ------- */
        .guide-cards {
            background: var(--bg-section);
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }

        .guide-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 24px;
        }

        .guide-left {
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .guide-card {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--radius-lg);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            overflow: hidden;
            transition: border-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
            position: relative;
        }

        .guide-card:hover {
            border-color: rgba(53, 240, 192, 0.4);
            transform: translateY(-3px);
            box-shadow: 0 14px 36px rgba(0, 0, 0, 0.35), 0 0 0 1px rgba(53, 240, 192, 0.06);
        }

        .card-cover {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            align-items: stretch;
            min-height: 220px;
        }

        .card-reverse {
            grid-template-columns: 0.8fr 1.2fr;
        }

        .card-reverse .guide-card-img {
            order: 1;
        }

        .card-reverse .guide-card-text {
            order: 2;
        }

        .guide-card-text {
            padding: 28px 26px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: flex-start;
            gap: 10px;
        }

        .guide-card-text h3 {
            font-size: 21px;
            font-weight: 700;
            line-height: 1.35;
            margin-bottom: 4px;
        }

        .guide-card-text p {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.65;
            margin-bottom: 12px;
        }

        .guide-card-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 220px;
        }

        .link-arrow {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--accent-green);
            margin-top: auto;
            transition: gap 0.25s ease;
        }

        .link-arrow:hover {
            gap: 10px;
            color: #8FF4DD;
        }

        .card-slim {
            padding: 30px 26px;
            display: flex;
            flex-direction: column;
            gap: 14px;
            min-height: 100%;
        }

        .card-slim h3 {
            font-size: 20px;
            font-weight: 700;
            line-height: 1.4;
        }

        .card-slim p {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.65;
        }

        .guide-card-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: rgba(245, 185, 113, 0.12);
            border: 1px solid rgba(245, 185, 113, 0.2);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-gold);
            font-size: 20px;
        }

        /* ------- Steps ------- */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .step-item {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            position: relative;
            transition: border-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
        }

        .step-item:hover {
            border-color: rgba(53, 240, 192, 0.3);
            transform: translateY(-3px);
            box-shadow: 0 12px 30px rgba(0, 0, 0, 0.3);
        }

        .step-num {
            font-size: 28px;
            font-weight: 800;
            color: rgba(53, 240, 192, 0.35);
            font-family: 'Inter', 'DIN Alternate', sans-serif;
            letter-spacing: -0.02em;
            display: block;
            margin-bottom: 16px;
        }

        .step-item h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .step-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ------- Feature ------- */
        .feature-section {
            background: var(--bg-section);
            border-top: 1px solid rgba(255, 255, 255, 0.04);
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }

        .feature-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
        }

        .feature-media {
            position: relative;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 18px 48px rgba(0, 0, 0, 0.4);
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

        .feature-media img {
            width: 100%;
            height: 420px;
            object-fit: cover;
        }

        .media-badge {
            position: absolute;
            bottom: 20px;
            left: 20px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(11, 18, 32, 0.72);
            backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.15);
            padding: 7px 16px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-green);
        }

        .feature-list h2 {
            font-size: 30px;
            line-height: 1.3;
            font-weight: 800;
            margin-bottom: 12px;
        }

        .feature-list>p {
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.7;
            margin-bottom: 28px;
        }

        .feature-list ul {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 14px;
        }

        .feature-icon {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: rgba(53, 240, 192, 0.1);
            border: 1px solid rgba(53, 240, 192, 0.18);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-green);
            font-size: 16px;
            flex-shrink: 0;
        }

        .feature-list li h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 3px;
        }

        .feature-list li p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

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

        .notice-item {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.07);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            text-align: center;
            transition: background 0.3s ease, border-color 0.3s ease, transform 0.3s ease;
        }

        .notice-item:hover {
            background: rgba(53, 240, 192, 0.05);
            border-color: rgba(53, 240, 192, 0.2);
            transform: translateY(-2px);
        }

        .notice-item i {
            font-size: 24px;
            color: var(--accent-green);
            margin-bottom: 14px;
        }

        .notice-item h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .notice-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ------- FAQ ------- */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }

        .faq-item.is-active {
            border-color: rgba(53, 240, 192, 0.3);
            box-shadow: 0 0 20px rgba(53, 240, 192, 0.06);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 22px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            text-align: left;
            transition: background 0.25s ease;
        }

        .faq-question:hover {
            background: rgba(255, 255, 255, 0.03);
        }

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

        .faq-item.is-active .faq-question i {
            transform: rotate(180deg);
            color: var(--accent-green);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
        }

        .faq-item.is-active .faq-answer {
            max-height: 240px;
        }

        .faq-answer-inner {
            padding: 0 22px 20px 22px;
            border-left: 3px solid var(--accent-green);
            margin-left: 22px;
        }

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

        /* ------- CTA ------- */
        .cta-section {
            padding: 60px 0 96px;
        }

        .cta-box {
            position: relative;
            background: linear-gradient(135deg, rgba(26, 58, 92, 0.5), rgba(11, 18, 32, 0.9)), url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            border-radius: 24px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            text-align: center;
            padding: 64px 32px;
            overflow: hidden;
        }

        .cta-box::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(circle at 50% 100%, rgba(53, 240, 192, 0.2), transparent 50%);
            pointer-events: none;
        }

        .cta-box h2 {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 12px;
            position: relative;
        }

        .cta-box p {
            color: var(--text-secondary);
            font-size: 16px;
            margin-bottom: 28px;
            position: relative;
        }

        .cta-box .btn {
            position: relative;
        }

        /* ------- Footer ------- */
        .site-footer {
            background: #080D17;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding: 60px 0 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 44px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }

        .footer-logo .brand-icon {
            width: 28px;
            height: 28px;
        }

        .footer-brand-desc {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.7;
            max-width: 260px;
        }

        .footer-title {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-main);
        }

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

        .footer-links a {
            color: var(--text-secondary);
            font-size: 14px;
            transition: color 0.25s ease, padding-left 0.25s ease;
        }

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

        .footer-contact p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.6;
            margin-bottom: 8px;
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 24px;
        }

        .footer-copy {
            font-size: 14px;
            color: var(--text-muted);
        }

        .footer-legal {
            font-size: 13px;
            color: var(--text-disabled);
            display: flex;
            gap: 8px;
            align-items: center;
        }

        /* ------- Floating CTA ------- */
        .desktop-float-cta {
            position: fixed;
            right: 28px;
            bottom: 36px;
            z-index: 90;
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 10px 20px;
            border-radius: 999px;
            background: linear-gradient(135deg, var(--accent-green), var(--accent-green-dark));
            color: #0B1220;
            font-size: 14px;
            font-weight: 700;
            box-shadow: var(--glow-green);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .desktop-float-cta:hover {
            transform: translateY(-2px);
            box-shadow: var(--glow-green-hover);
        }

        .float-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: #0B1220;
            position: relative;
        }

        .float-dot::after {
            content: '';
            position: absolute;
            inset: -4px;
            border-radius: 50%;
            border: 2px solid rgba(11, 18, 32, 0.4);
            animation: floatPulse 2s ease infinite;
        }

        @keyframes floatPulse {
            0% {
                transform: scale(1);
                opacity: 1;
            }
            70% {
                transform: scale(1.6);
                opacity: 0;
            }
            100% {
                transform: scale(1.6);
                opacity: 0;
            }
        }

        .mobile-cta-bar {
            display: none;
        }

        /* ------- Responsive ------- */
        @media (max-width: 1023px) {
            :root {
                --section-space: 68px;
            }

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

            .card-slim {
                min-height: auto;
            }

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

            .feature-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }

            .feature-media img {
                height: 320px;
            }

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

        @media (max-width: 767px) {
            :root {
                --section-space: 56px;
            }

            .container {
                padding-left: 18px;
                padding-right: 18px;
            }

            .site-header {
                height: 56px;
            }

            .header-left {
                gap: 12px;
            }

            .brand-text {
                font-size: 15px;
            }

            .main-nav {
                position: fixed;
                top: 56px;
                left: 0;
                right: 0;
                background: rgba(11, 18, 32, 0.96);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 20px 18px 28px;
                gap: 4px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.08);
                transform: translateY(-120%);
                transition: transform 0.35s ease;
                z-index: 999;
                box-shadow: 0 24px 48px rgba(0, 0, 0, 0.4);
            }

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

            .nav-link {
                width: 100%;
                padding: 14px 16px;
                font-size: 16px;
                border-radius: 10px;
            }

            .nav-link.active::after {
                left: 16px;
                right: auto;
                width: 24px;
            }

            .header-search {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

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

            .category-banner {
                min-height: 400px;
                padding: 110px 18px 60px;
            }

            .banner-content h1 {
                font-size: 30px;
                line-height: 1.35;
            }

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

            .banner-actions {
                flex-direction: column;
                align-items: center;
            }

            .banner-actions .btn {
                width: 100%;
                max-width: 280px;
            }

            .banner-meta {
                gap: 14px;
            }

            .card-cover,
            .card-reverse {
                grid-template-columns: 1fr;
            }

            .card-reverse .guide-card-img {
                order: 0;
            }

            .card-reverse .guide-card-text {
                order: 1;
            }

            .guide-card-img {
                min-height: 180px;
                max-height: 220px;
            }

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

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

            .feature-media img {
                height: 240px;
            }

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

            .cta-box {
                padding: 44px 20px;
            }

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

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

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

            .desktop-float-cta {
                display: none;
            }

            .mobile-cta-bar {
                display: block;
                position: fixed;
                bottom: 0;
                left: 0;
                right: 0;
                height: 56px;
                padding: 8px 16px;
                background: rgba(11, 18, 32, 0.92);
                backdrop-filter: blur(16px);
                border-top: 1px solid rgba(255, 255, 255, 0.08);
                z-index: 99;
            }

            .mobile-cta-bar .btn {
                width: 100%;
                height: 40px;
            }

            body {
                padding-bottom: 72px;
            }
        }

        @media (max-width: 520px) {
            .banner-content h1 {
                font-size: 26px;
            }

            .section-head h2 {
                font-size: 23px;
            }

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

            .guide-card-text {
                padding: 22px 18px;
            }

            .guide-card-text h3 {
                font-size: 18px;
            }
        }