/* roulang page: index */
:root {
  --color-bg-0: #060B16;
  --color-bg-1: #0A1220;
  --color-surface: #0F1A2C;
  --color-surface-soft: rgba(15, 26, 44, 0.72);
  --color-surface-glass: rgba(255, 255, 255, 0.05);
  --color-primary: #2BC5F2;
  --color-primary-deep: #1976D2;
  --color-accent: #F2B64B;
  --color-success: #2EE6A8;
  --color-danger: #FF5470;
  --color-text-primary: #EAF4FF;
  --color-text-secondary: #92A9C9;
  --color-text-muted: #5F7396;
  --color-border-light: rgba(255, 255, 255, 0.12);
  --color-border-accent: rgba(43, 197, 242, 0.4);
  --glow-primary: 0 0 24px rgba(43, 197, 242, 0.45);
  --glow-accent: 0 0 20px rgba(242, 182, 75, 0.35);
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-hover: 0 16px 48px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(43, 197, 242, 0.2);
  --font-sans: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --font-num: "DIN Alternate", "Barlow Condensed", "Rajdhani", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--color-bg-0);
  color: var(--color-text-primary);
  line-height: 1.75;
  min-height: 100vh;
  overflow-x: hidden;
  animation: pageIn 0.6s ease 1;
}
@keyframes pageIn { from { opacity: 0; } to { opacity: 1; } }
img { max-width: 100%; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color 0.25s ease; }
a:hover { color: var(--color-primary); }
button { font-family: inherit; cursor: pointer; }
input, textarea { font-family: inherit; }
:focus-visible { outline: 2px solid rgba(255, 255, 255, 0.6); outline-offset: 2px; }
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--color-bg-0); }
::-webkit-scrollbar-thumb { background: var(--color-primary-deep); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--color-primary); }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
@media (max-width: 640px) {
  .container { padding: 0 16px; }
}
.section-header { display: flex; align-items: flex-start; flex-direction: column; margin-bottom: 40px; }
.section-header h2 {
  font-size: clamp(28px, 3.2vw, 44px);
  font-weight: 700;
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--color-text-primary);
  text-wrap: balance;
}
.section-header h2::before {
  content: "";
  width: 6px;
  height: 28px;
  background: var(--color-primary);
  box-shadow: var(--glow-primary);
  border-radius: 3px;
  flex: 0 0 auto;
}
.section-sub {
  font-size: 18px;
  font-weight: 400;
  color: var(--color-text-secondary);
  margin-top: 10px;
  padding-left: 20px;
  max-width: 640px;
}
.section-band { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 22px;
  border-radius: var(--radius-sm);
  font-size: clamp(16px, 1.6vw, 18px);
  font-weight: 600;
  border: 0;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease, border-color 0.25s ease;
  white-space: nowrap;
}
.btn i { font-size: 0.9em; }
.btn-primary {
  background: linear-gradient(135deg, #2BC5F2 0%, #1976D2 100%);
  color: #06121F;
  box-shadow: 0 0 24px rgba(43, 197, 242, 0.45);
}
.btn-primary:hover { color: #06121F; box-shadow: 0 0 44px rgba(43, 197, 242, 0.75); transform: translateY(-2px); }
.btn-primary:active { transform: translateY(0); box-shadow: 0 0 12px rgba(43, 197, 242, 0.5); }
.btn-ghost {
  background: rgba(255, 255, 255, 0.06);
  color: var(--color-text-primary);
  border: 1px solid rgba(255, 255, 255, 0.25);
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.12); border-color: var(--color-primary); color: var(--color-primary); transform: translateY(-2px); }
.btn-ghost:active { transform: translateY(0); }
.text-num { font-family: var(--font-num); letter-spacing: 0.03em; }

.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: 64px;
  background: rgba(6, 11, 22, 0.72);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(6, 11, 22, 0.94);
  border-bottom-color: rgba(43, 197, 242, 0.25);
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
}
.nav-inner { display: flex; align-items: center; gap: 28px; height: 64px; position: relative; }
.brand { display: inline-flex; align-items: center; gap: 10px; flex: 0 0 auto; }
.brand-badge {
  width: 36px; height: 36px;
  border-radius: 12px;
  background: linear-gradient(145deg, rgba(43,197,242,0.2), rgba(25,118,210,0.15));
  border: 1px solid var(--color-border-accent);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-primary);
  font-size: 18px;
  box-shadow: inset 0 0 12px rgba(43,197,242,0.2), 0 0 12px rgba(43,197,242,0.15);
  position: relative;
}
.brand-badge::after {
  content: "";
  position: absolute;
  bottom: 5px; left: 8px; right: 8px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
}
.brand-text { font-size: 19px; font-weight: 700; color: var(--color-text-primary); letter-spacing: 0.02em; white-space: nowrap; }
.brand-text span { color: rgba(234, 244, 255, 0.9); font-weight: 600; }
.site-nav { display: flex; align-items: center; gap: 6px; flex: 1 1 auto; }
.nav-link {
  position: relative;
  padding: 10px 14px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-secondary);
  border-radius: 8px;
  transition: color 0.25s ease, background 0.25s ease;
}
.nav-link:hover { color: var(--color-text-primary); background: rgba(255,255,255,0.04); }
.nav-link.active { color: var(--color-primary); }
.nav-link.active::after {
  content: "";
  position: absolute;
  left: 14px; right: 14px; bottom: 2px;
  height: 2px;
  background: var(--color-primary);
  box-shadow: var(--glow-primary);
  border-radius: 2px;
}
.nav-status { display: flex; align-items: center; gap: 12px; flex: 0 0 auto; }
.countdown-badge, .online-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  border: 1px solid var(--color-border-light);
  background: rgba(255,255,255,0.03);
  color: var(--color-text-secondary);
}
.countdown-badge {
  border-color: rgba(242, 182, 75, 0.4);
  color: var(--color-accent);
}
.countdown-badge .timer { font-family: var(--font-num); font-size: 14px; font-weight: 600; letter-spacing: 0.06em; }
.countdown-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 8px var(--color-accent);
  animation: pulseDot 1.6s ease infinite;
}
@keyframes pulseDot { 0%,100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.4; transform: scale(0.8); } }
.online-badge .online-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--color-success);
  box-shadow: 0 0 8px var(--color-success);
  animation: pulseDot 1.6s ease infinite 0.4s;
}
.nav-cta { min-width: 104px; min-height: 44px; margin-left: 4px; }
.nav-toggle { display: none; width: 44px; height: 44px; border-radius: 10px; border: 1px solid var(--color-border-light); background: rgba(255,255,255,0.04); color: var(--color-text-primary); font-size: 18px; align-items: center; justify-content: center; }

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 140px 0 80px;
  background: radial-gradient(ellipse at 50% 30%, rgba(25,118,210,0.22) 0%, rgba(6,11,22,0.9) 65%), url('/assets/images/backpic/back-1.png') no-repeat center center / cover;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(90deg, rgba(43,197,242,0.03) 0 1px, transparent 1px 80px), repeating-linear-gradient(0deg, rgba(43,197,242,0.03) 0 1px, transparent 1px 80px);
  pointer-events: none;
}
.hero::after {
  content: "";
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
  opacity: 0.7;
}
.hero-arch {
  position: relative;
  z-index: 2;
  width: 720px;
  max-width: 92%;
  border-radius: 24px;
  border-top-left-radius: 50% 110px;
  border-top-right-radius: 50% 110px;
  background: linear-gradient(160deg, rgba(15,26,44,0.85), rgba(10,18,32,0.72));
  border: 1px solid var(--color-border-accent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 24px 80px rgba(0,0,0,0.5), inset 0 1px 0 rgba(255,255,255,0.08);
  padding: 64px 56px 56px;
  text-align: center;
  overflow: hidden;
}
.hero-arch::before {
  content: "";
  position: absolute;
  top: 0; left: 15%; right: 15%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(43,197,242,0.7), transparent);
}
.hero-arch::after {
  content: "LE · YU · ONLINE";
  position: absolute;
  bottom: 14px; left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.5em;
  color: rgba(92, 140, 190, 0.3);
  text-transform: uppercase;
  white-space: nowrap;
}
.hero-badge-float {
  position: absolute;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  border-radius: 999px;
  background: rgba(15,26,44,0.72);
  border: 1px solid var(--color-border-light);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-card);
  font-size: 13px;
  color: var(--color-text-secondary);
  animation: floatY 4s ease-in-out infinite;
}
@keyframes floatY { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }
.hero-badge-float .num { font-family: var(--font-num); font-size: 16px; font-weight: 600; color: var(--color-primary); }
.hero-badge-float .time { font-family: var(--font-num); font-size: 15px; font-weight: 600; color: var(--color-accent); }
.hero-badge-left { left: 4%; top: 22%; }
.hero-badge-right { right: 4%; top: 32%; animation-delay: 1.2s; }
.hero-badge-left .num { color: var(--color-success); }
.hero h1 {
  font-size: clamp(36px, 5vw, 64px);
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.25;
  color: var(--color-text-primary);
  margin-bottom: 8px;
  text-shadow: 0 4px 30px rgba(43,197,242,0.2);
}
.hero h1 span { color: var(--color-primary); }
.hero-deco { width: 48px; height: 2px; margin: 18px auto 0; background: linear-gradient(90deg, transparent, var(--color-primary), transparent); box-shadow: var(--glow-primary); }
.hero-sub {
  margin: 22px auto 0;
  max-width: 460px;
  font-size: 17px;
  color: var(--color-text-secondary);
  line-height: 1.8;
  text-wrap: pretty;
}
.hero-cta { display: flex; justify-content: center; gap: 16px; margin-top: 30px; flex-wrap: wrap; }
.hero-badge-row { display: none; z-index: 2; position: relative; gap: 14px; margin-top: 24px; }

@media (max-width: 768px) {
  .hero { min-height: 86vh; padding: 110px 0 60px; text-align: left; }
  .hero-arch { text-align: left; padding: 44px 24px 48px; border-radius: 20px; border-top-left-radius: 40% 80px; border-top-right-radius: 40% 80px; }
  .hero h1 { font-size: clamp(32px, 8vw, 44px); }
  .hero-deco { margin-left: 0; }
  .hero-sub { margin-left: 0; }
  .hero-cta { justify-content: flex-start; }
  .hero-badge-left, .hero-badge-right { display: none; }
  .hero-badge-row { display: flex; }
}

.data-strip {
  position: relative;
  z-index: 5;
  margin: -40px auto 0;
  max-width: 1200px;
  width: calc(100% - 32px);
  border-radius: 18px;
  background: linear-gradient(160deg, rgba(15,26,44,0.95), rgba(10,18,32,0.85));
  border: 1px solid var(--color-border-light);
  backdrop-filter: blur(12px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.45);
  padding: 28px 20px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.data-item { text-align: center; padding: 8px 12px; position: relative; }
.data-item + .data-item::before {
  content: "";
  position: absolute;
  left: -8px; top: 15%; bottom: 15%;
  width: 1px;
  background: linear-gradient(180deg, transparent, var(--color-border-light), transparent);
}
.data-num {
  font-family: var(--font-num);
  font-size: clamp(26px, 3vw, 38px);
  font-weight: 700;
  color: var(--color-text-primary);
  line-height: 1.1;
}
.data-num em { font-style: normal; color: var(--color-accent); font-size: 0.7em; margin-left: 2px; }
.data-label { margin-top: 6px; font-size: 13px; color: var(--color-text-muted); letter-spacing: 0.08em; }
@media (max-width: 768px) {
  .data-strip { grid-template-columns: repeat(2, 1fr); margin-top: -24px; padding: 20px 10px; }
  .data-item:nth-child(3)::before { display: none; }
  .data-item:nth-child(n+3) { border-top: 1px solid rgba(255,255,255,0.05); }
}
@media (max-width: 430px) {
  .data-strip { grid-template-columns: 1fr 1fr; gap: 8px; }
}

.play-section { padding: 110px 0 40px; position: relative; }
.play-grid { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 32px; align-items: stretch; }
.play-feature {
  position: relative;
  background: linear-gradient(155deg, rgba(15,26,44,0.95), rgba(10,18,32,0.8));
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}
.play-feature:hover { box-shadow: var(--shadow-hover); }
.play-feature figure { position: relative; height: 260px; overflow: hidden; }
.play-feature figure::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 30%, rgba(6,11,22,0.85)); }
.play-feature img { width: 100%; height: 100%; object-fit: cover; }
.play-feature-body { padding: 24px 28px 30px; position: relative; }
.play-feature-tag {
  position: absolute;
  top: -12px; left: 28px;
  background: var(--color-primary);
  color: #06121F;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 999px;
  box-shadow: var(--glow-primary);
}
.play-feature h3 { font-size: 23px; font-weight: 600; margin-top: 6px; color: var(--color-text-primary); }
.play-feature p { margin-top: 10px; color: var(--color-text-secondary); font-size: 15px; line-height: 1.8; }
.play-small-cards { display: grid; grid-template-columns: 1fr 1fr; grid-template-rows: 1fr 1fr; gap: 24px; }
.play-small-card {
  background: var(--color-surface-soft);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 22px 20px;
  position: relative;
  transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.play-small-card::before {
  content: attr(data-index);
  position: absolute;
  right: 16px; top: 12px;
  font-family: var(--font-num);
  font-size: 26px;
  font-weight: 700;
  color: rgba(43,197,242,0.12);
  line-height: 1;
}
.play-small-card:hover { background: rgba(255,255,255,0.07); border-color: var(--color-border-accent); box-shadow: var(--glow-primary); }
.play-icon {
  width: 42px; height: 42px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, rgba(43,197,242,0.18), rgba(25,118,210,0.12));
  border: 1px solid var(--color-border-accent);
  color: var(--color-primary);
  font-size: 18px;
  margin-bottom: 18px;
}
.play-small-card h4 { font-size: 18px; font-weight: 600; color: var(--color-text-primary); }
.play-small-card p { margin-top: 8px; font-size: 14px; color: var(--color-text-secondary); line-height: 1.7; }
@media (max-width: 1024px) {
  .play-grid { grid-template-columns: 1fr; }
  .play-small-cards { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .play-section { padding-top: 72px; }
  .play-small-cards { grid-template-columns: 1fr; gap: 16px; }
  .play-feature-body { padding: 20px; }
}

.reward-section {
  padding: 100px 0;
  position: relative;
  background: radial-gradient(ellipse at center, rgba(15,26,44,0.5) 0%, transparent 65%);
}
.reward-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent, rgba(43,197,242,0.03), transparent);
  pointer-events: none;
}
.reward-grid { display: flex; align-items: stretch; justify-content: center; gap: 24px; }
.reward-card {
  flex: 1;
  max-width: 340px;
  background: linear-gradient(160deg, rgba(15,26,44,0.88), rgba(10,18,32,0.72));
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  position: relative;
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-card);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.reward-card:hover { background: rgba(255,255,255,0.06); box-shadow: var(--shadow-hover); }
.reward-card.featured {
  flex: 1.08;
  transform: translateY(-16px);
  border-color: transparent;
  background: linear-gradient(160deg, rgba(25,118,210,0.18), rgba(15,26,44,0.92));
  background-clip: padding-box;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5), 0 0 0 1px rgba(242,182,75,0.35), 0 0 40px rgba(242,182,75,0.12);
}
.reward-card.featured:hover { transform: translateY(-18px) scale(1.01); box-shadow: 0 24px 68px rgba(0,0,0,0.55), 0 0 0 1px rgba(242,182,75,0.5), 0 0 60px rgba(242,182,75,0.18); }
.reward-card.featured::before {
  content: "";
  position: absolute;
  top: -1px; left: 20%; right: 20%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
  box-shadow: 0 0 16px rgba(242,182,75,0.6);
}
.reward-card.featured::after {
  content: "\f005";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  position: absolute;
  top: 14px; right: 16px;
  color: var(--color-accent);
  font-size: 16px;
  filter: drop-shadow(0 0 8px rgba(242,182,75,0.6));
  animation: floatY 3s ease-in-out infinite;
}
.reward-figure {
  height: 150px;
  border-radius: 12px;
  margin-bottom: 20px;
  overflow: hidden;
  position: relative;
  border: 1px solid var(--color-border-light);
  display: flex; align-items: center; justify-content: center;
  font-size: 44px;
  background: linear-gradient(145deg, rgba(43,197,242,0.08), rgba(255,255,255,0.02));
}
.reward-figure img { width: 100%; height: 100%; object-fit: cover; }
.reward-card h3 { font-size: 20px; font-weight: 600; color: var(--color-text-primary); }
.reward-value { margin-top: 10px; font-family: var(--font-num); font-size: 26px; font-weight: 700; color: var(--color-accent); letter-spacing: 0.04em; }
.reward-value small { font-size: 13px; color: var(--color-text-muted); font-weight: 400; margin-left: 4px; }
.reward-desc { margin-top: 8px; font-size: 14px; color: var(--color-text-secondary); }
.reward-prob { margin-top: 16px; }
.reward-prob-top { display: flex; justify-content: space-between; font-size: 12px; color: var(--color-text-muted); margin-bottom: 6px; }
.reward-prob-track { height: 6px; border-radius: 999px; background: rgba(255,255,255,0.08); overflow: hidden; }
.reward-prob-fill { height: 100%; border-radius: 999px; background: linear-gradient(90deg, var(--color-primary-deep), var(--color-primary)); box-shadow: var(--glow-primary); }
.reward-card.featured .reward-prob-fill { background: linear-gradient(90deg, #C78A1C, var(--color-accent)); box-shadow: var(--glow-accent); }
.reward-btn-line { margin-top: 20px; }
@media (max-width: 900px) {
  .reward-grid { flex-wrap: wrap; }
  .reward-card { max-width: 340px; flex: 1 1 calc(50% - 24px); }
  .reward-card.featured { transform: none; order: -1; flex-basis: 100%; max-width: 400px; }
  .reward-card.featured:hover { transform: translateY(-6px); }
}
@media (max-width: 640px) {
  .reward-section { padding: 72px 0; }
  .reward-grid { display: flex; flex-wrap: nowrap; overflow-x: auto; scroll-snap-type: x mandatory; gap: 16px; padding: 8px 4px 20px; -webkit-overflow-scrolling: touch; background: linear-gradient(90deg, transparent, rgba(43,197,242,0.08) 30%, rgba(43,197,242,0.08) 70%, transparent); background-size: 100% 1px; background-position: bottom; background-repeat: no-repeat; }
  .reward-card { flex: 0 0 82%; scroll-snap-align: center; max-width: none; }
  .reward-card.featured { order: 0; flex-basis: 90%; transform: none; }
  .reward-card.featured:hover { transform: none; }
}

.task-section { padding: 90px 0; position: relative; }
.task-panel {
  background: linear-gradient(160deg, rgba(43,197,242,0.06), rgba(10,18,32,0.7));
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: 44px 40px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.task-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-2.webp') no-repeat center center / cover;
  opacity: 0.08;
  pointer-events: none;
}
.task-top { display: flex; justify-content: space-between; align-items: center; gap: 20px; margin-bottom: 34px; position: relative; z-index: 2; flex-wrap: wrap; }
.task-label { font-size: 14px; color: var(--color-text-secondary); }
.task-label b { color: var(--color-primary); font-weight: 600; }
.task-percent {
  font-family: var(--font-num);
  font-size: 42px;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  text-shadow: var(--glow-accent);
}
.task-track-wrap { position: relative; z-index: 2; }
.task-track { position: relative; height: 4px; background: rgba(255,255,255,0.1); border-radius: 999px; margin: 0 24px 40px; }
.task-track-fill {
  position: absolute;
  top: 0; left: 0;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--color-primary-deep), var(--color-primary));
  border-radius: 999px;
  box-shadow: var(--glow-primary);
  transition: width 1.2s ease 0.2s;
}
.task-track-fill.done { width: 59%; }
.task-nodes { display: flex; justify-content: space-between; position: relative; padding: 0 10px; }
.task-node { display: flex; flex-direction: column; align-items: center; text-align: center; width: 100px; }
.task-circle {
  width: 40px; height: 40px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: var(--color-bg-1);
  border: 1px solid var(--color-border-light);
  color: var(--color-text-muted);
  font-size: 15px;
  position: relative;
  z-index: 3;
  transition: all 0.3s ease;
}
.task-node.done .task-circle { background: var(--color-primary); border-color: var(--color-primary); color: #06121F; box-shadow: var(--glow-primary); }
.task-node.current .task-circle {
  border-color: var(--color-accent);
  color: var(--color-accent);
  box-shadow: 0 0 0 6px rgba(242,182,75,0.12), var(--glow-accent);
  animation: pulseCircle 2s ease infinite;
}
@keyframes pulseCircle { 0%,100% { box-shadow: 0 0 0 5px rgba(242,182,75,0.12), var(--glow-accent); } 50% { box-shadow: 0 0 0 11px rgba(242,182,75,0.05), var(--glow-accent); } }
.task-node-name { margin-top: 12px; font-size: 14px; font-weight: 600; color: var(--color-text-primary); }
.task-node-meta { margin-top: 4px; font-size: 12px; color: var(--color-text-muted); }
.task-node-reward { margin-top: 6px; font-size: 11px; padding: 3px 10px; border-radius: 999px; border: 1px solid rgba(242,182,75,0.35); color: var(--color-accent); background: rgba(242,182,75,0.06); }
.task-node:not(.done):not(.current) .task-node-reward { border-color: var(--color-border-light); color: var(--color-text-muted); background: transparent; }
.task-cta-line { text-align: center; margin-top: 36px; position: relative; z-index: 2; }
@media (max-width: 640px) {
  .task-panel { padding: 28px 16px; }
  .task-track { margin: 0 10px 30px; }
  .task-node { width: 64px; }
  .task-circle { width: 34px; height: 34px; font-size: 13px; }
  .task-node-name { font-size: 12px; }
  .task-node-meta { font-size: 11px; }
}

.cta-banner {
  position: relative;
  margin: 30px auto;
  max-width: 1200px;
  width: calc(100% - 32px);
  border-radius: var(--radius-lg);
  background: linear-gradient(150deg, rgba(15,26,44,0.9), rgba(6,11,22,0.85));
  border: 1px solid var(--color-border-accent);
  box-shadow: 0 20px 60px rgba(0,0,0,0.45), inset 0 0 80px rgba(43,197,242,0.04);
  padding: 56px 40px;
  text-align: center;
  overflow: hidden;
}
.cta-banner::before {
  content: "";
  position: absolute;
  top: -60px; left: 12%;
  width: 200px; height: 200px;
  background: radial-gradient(circle, rgba(43,197,242,0.16), transparent 70%);
  pointer-events: none;
}
.cta-banner::after {
  content: "";
  position: absolute;
  bottom: -80px; right: 10%;
  width: 240px; height: 240px;
  background: radial-gradient(circle, rgba(242,182,75,0.1), transparent 70%);
  pointer-events: none;
}
.cta-banner h2 { font-size: clamp(24px, 3vw, 36px); font-weight: 700; position: relative; z-index: 2; }
.cta-banner h2 span { color: var(--color-primary); }
.cta-banner p { margin: 12px auto 26px; color: var(--color-text-secondary); max-width: 520px; position: relative; z-index: 2; font-size: 16px; }
.cta-banner .btn { position: relative; z-index: 2; }

.news-section { padding: 100px 0 40px; }
.news-list { display: flex; flex-direction: column; gap: 16px; }
.news-card {
  display: flex;
  gap: 20px;
  background: var(--color-surface-soft);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 16px;
  position: relative;
  overflow: hidden;
  transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.news-card::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--color-primary);
  box-shadow: var(--glow-primary);
  opacity: 0;
  transition: opacity 0.3s ease;
}
.news-card:hover { background: rgba(255,255,255,0.09); border-color: var(--color-border-accent); box-shadow: var(--shadow-hover); }
.news-card:hover::before { opacity: 1; }
.news-thumb {
  width: 120px; height: 80px;
  flex: 0 0 auto;
  border-radius: 8px;
  background-color: rgba(43,197,242,0.1);
  background-size: cover;
  background-position: center;
  border: 1px solid rgba(43,197,242,0.25);
  position: relative;
}
.news-thumb::after { content: "\f15c"; font-family: "Font Awesome 6 Free"; font-weight: 400; position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; color: rgba(43,197,242,0.5); font-size: 20px; background: linear-gradient(145deg, rgba(43,197,242,0.06), rgba(255,255,255,0.02)); border-radius: 7px; }
.news-content { flex: 1 1 auto; min-width: 0; display: flex; flex-direction: column; }
.news-title { font-size: 18px; font-weight: 600; color: var(--color-text-primary); line-height: 1.45; overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.news-excerpt { margin-top: 5px; font-size: 14px; color: var(--color-text-secondary); overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.news-meta { margin-top: auto; padding-top: 10px; display: flex; align-items: center; gap: 14px; font-size: 13px; color: var(--color-text-muted); }
.news-date { font-family: var(--font-num); }
.news-cat { padding: 2px 10px; border-radius: 999px; border: 1px solid var(--color-border-accent); color: var(--color-primary); background: rgba(43,197,242,0.06); font-size: 12px; }
.news-more { margin-left: auto; color: var(--color-text-secondary); font-size: 13px; transition: color 0.25s ease, gap 0.25s ease; display: inline-flex; align-items: center; gap: 5px; }
.news-card:hover .news-more { color: var(--color-primary); gap: 8px; }
.news-empty { text-align: center; padding: 32px; color: var(--color-text-muted); font-size: 15px; border: 1px dashed var(--color-border-light); border-radius: var(--radius-md); }
@media (max-width: 640px) {
  .news-section { padding-top: 72px; }
  .news-card { flex-direction: row; padding: 12px; gap: 14px; }
  .news-thumb { width: 88px; height: 64px; }
  .news-title { font-size: 15px; }
  .news-excerpt { font-size: 13px; }
  .news-meta { gap: 8px; flex-wrap: wrap; }
  .news-more { display: none; }
}

.faq-section {
  padding: 100px 0;
  position: relative;
  background-image: repeating-linear-gradient(135deg, rgba(255,255,255,0.015) 0 1px, transparent 1px 9px);
}
.faq-layout { display: grid; grid-template-columns: 240px 1fr; gap: 40px; }
.faq-sidebar { display: flex; flex-direction: column; gap: 8px; position: sticky; top: 100px; align-self: start; }
.faq-cat {
  padding: 12px 16px;
  border-radius: 10px;
  border: 1px solid transparent;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-secondary);
  text-align: left;
  background: transparent;
  transition: all 0.25s ease;
}
.faq-cat:hover { color: var(--color-text-primary); background: rgba(255,255,255,0.04); }
.faq-cat.active {
  color: var(--color-primary);
  border-color: var(--color-border-accent);
  background: rgba(43,197,242,0.07);
  box-shadow: inset 3px 0 0 var(--color-primary);
}
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  background: var(--color-surface-soft);
  border: 1px solid var(--color-border-light);
  border-radius: 14px;
  overflow: hidden;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.faq-item.open { border-color: var(--color-border-accent); box-shadow: 0 0 0 1px rgba(43,197,242,0.12), 0 8px 24px rgba(0,0,0,0.25); }
.faq-q {
  width: 100%;
  background: transparent;
  border: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text-primary);
  text-align: left;
}
.faq-q .icon {
  width: 26px; height: 26px;
  flex: 0 0 auto;
  border-radius: 50%;
  border: 1px solid var(--color-border-light);
  display: flex; align-items: center; justify-content: center;
  font-size: 14px;
  color: var(--color-text-secondary);
  transition: transform 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}
.faq-item.open .faq-q .icon { transform: rotate(45deg); color: var(--color-primary); border-color: var(--color-primary); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
  color: var(--color-text-secondary);
  font-size: 14px;
  line-height: 1.8;
  padding: 0 20px;
}
.faq-item.open .faq-a { max-height: 320px; padding-bottom: 18px; }
@media (max-width: 768px) {
  .faq-layout { grid-template-columns: 1fr; gap: 20px; }
  .faq-sidebar { position: static; flex-direction: row; overflow-x: auto; padding-bottom: 8px; scrollbar-width: none; }
  .faq-sidebar::-webkit-scrollbar { display: none; }
  .faq-cat { white-space: nowrap; padding: 10px 16px; }
}

.bottom-cta {
  position: relative;
  padding: 110px 0 130px;
  background: radial-gradient(ellipse at center, rgba(25,118,210,0.16), transparent 65%), url('/assets/images/backpic/back-3.webp') no-repeat center center / cover;
  border-top: 1px solid rgba(255,255,255,0.04);
  border-bottom: 1px solid rgba(255,255,255,0.04);
  text-align: center;
  overflow: hidden;
}
.bottom-cta::before {
  content: "";
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 600px; height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
  opacity: 0.4;
}
.bottom-cta h2 { font-size: clamp(28px, 4vw, 48px); font-weight: 700; position: relative; z-index: 2; }
.bottom-cta h2 span { color: var(--color-primary); }
.bottom-cta p { margin: 16px auto 34px; max-width: 520px; color: var(--color-text-secondary); font-size: 17px; position: relative; z-index: 2; }
.bottom-cta .btn { position: relative; z-index: 2; }

.site-footer {
  position: relative;
  background: #05070D;
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 70px;
  overflow: hidden;
}
.site-footer::before {
  content: "";
  position: absolute;
  top: -80px; right: -80px;
  width: 240px; height: 240px;
  background: radial-gradient(circle, rgba(43,197,242,0.08), transparent 70%);
  pointer-events: none;
}
.site-footer::after {
  content: "";
  position: absolute;
  bottom: -100px; left: -60px;
  width: 260px; height: 260px;
  background: radial-gradient(circle, rgba(43,197,242,0.06), transparent 70%);
  pointer-events: none;
}
.footer-grid { display: grid; grid-template-columns: 1.3fr 0.8fr 0.9fr 1fr; gap: 44px; position: relative; z-index: 2; }
.footer-brand .brand-text { font-size: 20px; }
.footer-desc { font-size: 14px; color: var(--color-text-muted); margin-top: 14px; line-height: 1.8; max-width: 280px; }
.footer-online { display: inline-flex; align-items: center; gap: 8px; margin-top: 16px; font-size: 13px; color: var(--color-success); border: 1px solid rgba(46,230,168,0.25); background: rgba(46,230,168,0.06); padding: 5px 14px; border-radius: 999px; }
.footer-online .dot { width: 6px; height: 6px; background: var(--color-success); border-radius: 50%; box-shadow: 0 0 8px var(--color-success); }
.footer-col h4 { font-size: 16px; font-weight: 600; color: var(--color-text-primary); margin-bottom: 16px; }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-col a { color: var(--color-text-muted); font-size: 14px; transition: color 0.25s ease, padding-left 0.25s ease; }
.footer-col a:hover { color: var(--color-primary); padding-left: 4px; }
.footer-bottom {
  position: relative;
  z-index: 2;
  margin-top: 56px;
  padding: 22px 0;
  border-top: 1px solid rgba(255,255,255,0.06);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
  font-size: 13px;
  color: var(--color-text-muted);
}
.footer-bottom a { color: var(--color-text-muted); }
.footer-bottom a:hover { color: var(--color-primary); }
@media (max-width: 900px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

.site-header .mobile-drawer {
  display: none;
}
@media (max-width: 900px) {
  .site-nav { display: none; }
  .nav-status { display: none; }
  .nav-toggle { display: flex; }
  .nav-inner { gap: 12px; }
  .nav-cta { margin-left: auto; }
  .mobile-drawer {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(6,11,22,0.98);
    z-index: 999;
    display: flex;
    flex-direction: column;
    padding: 110px 28px 32px;
    transform: translateY(-100%);
    transition: transform 0.35s ease;
    opacity: 0;
    pointer-events: none;
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
  }
  .mobile-drawer.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .mobile-drawer.close { transform: translateY(-100%); }
  .mobile-drawer a.m-drawer-link {
    font-size: 24px;
    font-weight: 600;
    color: var(--color-text-secondary);
    padding: 18px 0;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    transition: color 0.25s ease;
  }
  .mobile-drawer a.m-drawer-link.active { color: var(--color-primary); }
  .m-drawer-status { margin-top: 28px; display: flex; flex-direction: column; gap: 14px; }
  .m-drawer-status .countdown-badge, .m-drawer-status .online-badge { align-self: flex-start; }
  .m-drawer-cta { margin-top: 20px; }
  .m-drawer-close {
    position: absolute;
    top: 12px; right: 16px;
    width: 44px; height: 44px;
    border-radius: 10px;
    border: 1px solid var(--color-border-light);
    background: transparent;
    color: var(--color-text-primary);
    font-size: 20px;
  }
}
@media (max-width: 640px) {
  .site-header { height: 56px; }
  .nav-inner { height: 56px; }
  .mobile-drawer { padding-top: 96px; }
}
@media (min-width: 901px) {
  .mobile-drawer { display: none !important; }
}

@media (max-width: 768px) {
  .section-header { margin-bottom: 30px; }
  .section-sub { font-size: 16px; }
  .play-section, .reward-section, .task-section, .news-section, .faq-section { padding-top: 72px; padding-bottom: 56px; }
  .reward-section { padding-bottom: 72px; }
  .cta-banner { padding: 40px 20px; }
  .cta-banner h2 { font-size: 24px; }
  .bottom-cta { padding: 84px 0 100px; }
}
@media (hover: none), (pointer: coarse) {
  .btn:hover { transform: none; }
  .btn-primary:hover { box-shadow: 0 0 24px rgba(43,197,242,0.45); }
  .btn-ghost:hover { transform: none; }
  .reward-card.featured:hover { transform: none; }
}

/* roulang page: article */
:root {
    --color-bg-0: #060B16;
    --color-bg-1: #0A1220;
    --color-surface: rgba(15, 26, 44, 0.72);
    --color-surface-glass: rgba(255, 255, 255, 0.05);
    --color-primary: #2BC5F2;
    --color-primary-deep: #1976D2;
    --color-accent: #F2B64B;
    --color-success: #2EE6A8;
    --color-danger: #FF5470;
    --color-text-primary: #EAF4FF;
    --color-text-secondary: #92A9C9;
    --color-text-muted: #5F7396;
    --color-border-light: rgba(255, 255, 255, 0.12);
    --color-border-accent: rgba(43, 197, 242, 0.4);
    --glow-primary: 0 0 24px rgba(43, 197, 242, 0.45);
    --glow-accent: 0 0 20px rgba(242, 182, 75, 0.35);
    --font-cn: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
    --font-num: "DIN Alternate", "Barlow Condensed", "Rajdhani", sans-serif;
    --radius-lg: 22px;
    --radius-md: 14px;
    --radius-sm: 10px;
    --shadow-card: 0 8px 24px rgba(0, 0, 0, 0.35);
    --shadow-hover: 0 16px 48px rgba(0, 0, 0, 0.5);
}
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
html {
    scroll-behavior: smooth;
}
body {
    font-family: var(--font-cn);
    background: var(--color-bg-0);
    color: var(--color-text-primary);
    line-height: 1.75;
    font-size: 16px;
    overflow-x: hidden;
    opacity: 0;
    animation: pageFade .45s ease forwards;
}
@keyframes pageFade {
    from { opacity: 0; }
    to { opacity: 1; }
}
img {
    max-width: 100%;
    height: auto;
    display: block;
}
a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color .25s ease;
}
a:hover { color: #6FD9FF; }
button {
    font-family: var(--font-cn);
    cursor: pointer;
    border: none;
    background: none;
}
ul, ol {
    list-style: none;
}
::selection {
    background: rgba(43, 197, 242, .3);
    color: #fff;
}
::-webkit-scrollbar {
    width: 10px;
}
::-webkit-scrollbar-track {
    background: var(--color-bg-0);
}
::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--color-primary), var(--color-primary-deep));
    border-radius: 8px;
    border: 2px solid var(--color-bg-0);
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}
.btn-glow {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 120px;
    height: 44px;
    padding: 0 24px;
    background: linear-gradient(135deg, #2BC5F2 0%, #1976D2 100%);
    color: #06121F;
    font-size: 16px;
    font-weight: 600;
    border-radius: 10px;
    box-shadow: var(--glow-primary);
    transition: box-shadow .3s ease, transform .3s ease, background .3s ease;
}
.btn-glow:hover {
    color: #06121F;
    box-shadow: 0 0 44px rgba(43, 197, 242, .75);
    transform: translateY(-2px);
}
.btn-glow:active {
    transform: translateY(0);
    box-shadow: 0 0 18px rgba(43, 197, 242, .5);
}
.btn-glow:focus-visible {
    outline: 2px solid rgba(255, 255, 255, .6);
    outline-offset: 2px;
}
.btn-ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 120px;
    height: 44px;
    padding: 0 24px;
    background: rgba(255, 255, 255, .06);
    color: var(--color-text-primary);
    font-size: 16px;
    font-weight: 500;
    border: 1px solid rgba(255, 255, 255, .25);
    border-radius: 10px;
    transition: background .3s ease, border-color .3s ease, transform .3s ease;
}
.btn-ghost:hover {
    background: rgba(255, 255, 255, .12);
    border-color: var(--color-primary);
    color: var(--color-text-primary);
    transform: translateY(-2px);
}
.btn-ghost:focus-visible {
    outline: 2px solid rgba(255, 255, 255, .6);
    outline-offset: 2px;
}
.tag {
    display: inline-flex;
    align-items: center;
    padding: 4px 14px;
    font-size: 13px;
    color: var(--color-primary);
    background: rgba(43, 197, 242, .08);
    border: 1px solid var(--color-border-accent);
    border-radius: 999px;
    line-height: 1.4;
}
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    height: 64px;
    background: rgba(6, 11, 22, .72);
    backdrop-filter: blur(20px) saturate(160%);
    -webkit-backdrop-filter: blur(20px) saturate(160%);
    border-bottom: 1px solid transparent;
    transition: background .35s ease, border-color .35s ease;
}
.site-header.scrolled {
    background: rgba(6, 11, 22, .92);
    border-bottom: 1px solid var(--color-border-light);
}
.site-header .container {
    display: flex;
    align-items: center;
    height: 100%;
    gap: 32px;
}
.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}
.brand-badge {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(43, 197, 242, .18), rgba(25, 118, 210, .12));
    border: 1px solid var(--color-border-accent);
    border-radius: 12px;
    color: var(--color-primary);
    font-size: 16px;
    box-shadow: 0 0 18px rgba(43, 197, 242, .25);
}
.brand-text {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: .02em;
    color: var(--color-text-primary);
    white-space: nowrap;
}
.brand-text span {
    color: rgba(234, 244, 255, .6);
    font-weight: 500;
}
.site-nav {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-left: auto;
}
.nav-link {
    display: inline-flex;
    align-items: center;
    padding: 8px 18px;
    font-size: 15px;
    font-weight: 500;
    color: var(--color-text-secondary);
    border-radius: 8px;
    position: relative;
    transition: color .25s ease, background .25s ease;
}
.nav-link:hover {
    color: var(--color-text-primary);
    background: rgba(255, 255, 255, .04);
}
.nav-link.active {
    color: var(--color-primary);
    background: rgba(43, 197, 242, .08);
}
.nav-link.active::after {
    content: "";
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 22px;
    height: 2px;
    background: var(--color-primary);
    border-radius: 4px;
    box-shadow: 0 0 12px var(--color-primary);
}
.header-actions {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-shrink: 0;
}
.countdown-badge,
.online-badge {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    height: 32px;
    padding: 0 14px;
    background: rgba(6, 11, 22, .7);
    border: 1px solid rgba(242, 182, 75, .3);
    border-radius: 999px;
    font-size: 13px;
    color: var(--color-text-secondary);
    white-space: nowrap;
}
.countdown-badge .dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-accent);
    animation: breathe 1.5s ease-in-out infinite;
    flex-shrink: 0;
}
@keyframes breathe {
    0%, 100% { opacity: 1; box-shadow: 0 0 8px rgba(242, 182, 75, .8); }
    50% { opacity: .45; box-shadow: 0 0 2px rgba(242, 182, 75, .3); }
}
.countdown-badge .time {
    font-family: var(--font-num);
    font-size: 14px;
    color: var(--color-accent);
    letter-spacing: .04em;
}
.online-badge {
    border-color: rgba(46, 230, 168, .3);
}
.online-badge i {
    color: var(--color-success);
    font-size: 10px;
    animation: onlinePulse 2s ease-in-out infinite;
}
@keyframes onlinePulse {
    0%, 100% { opacity: 1; }
    50% { opacity: .4; }
}
.online-badge .num {
    font-family: var(--font-num);
    font-size: 14px;
    color: var(--color-success);
}
.header-actions .btn-glow {
    min-width: 104px;
    height: 40px;
    font-size: 15px;
    padding: 0 20px;
}
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    padding: 10px;
    border-radius: 8px;
    border: 1px solid var(--color-border-light);
    background: rgba(255, 255, 255, .04);
    flex-shrink: 0;
}
.hamburger span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-text-primary);
    border-radius: 4px;
    transition: transform .3s ease, opacity .3s ease;
}
.hamburger.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.hamburger.active span:nth-child(2) {
    opacity: 0;
}
.hamburger.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}
.mobile-drawer {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 999;
    background: rgba(6, 11, 22, .97);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    flex-direction: column;
    align-items: center;
    padding: 48px 24px 40px;
    gap: 8px;
    overflow-y: auto;
}
.mobile-drawer.open {
    display: flex;
}
.drawer-link {
    font-size: 24px;
    font-weight: 600;
    color: var(--color-text-primary);
    padding: 14px 24px;
    border-radius: 10px;
    text-align: center;
    transition: background .25s ease, color .25s ease;
}
.drawer-link:hover,
.drawer-link.active {
    color: var(--color-primary);
    background: rgba(43, 197, 242, .08);
}
.drawer-status {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 32px;
    align-items: center;
}
.drawer-cta {
    margin-top: 32px;
    width: 100%;
    max-width: 260px;
}
.article-page {
    position: relative;
    padding: 0 0 100px;
}
.article-page::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 380px;
    background: radial-gradient(ellipse at 50% -20%, rgba(43, 197, 242, .12), transparent 60%);
    pointer-events: none;
    z-index: 0;
}
.breadcrumb-bar {
    position: relative;
    z-index: 1;
    padding: 28px 0 20px;
    border-bottom: 1px solid rgba(255, 255, 255, .06);
    background: linear-gradient(180deg, rgba(10, 18, 32, .6), rgba(6, 11, 22, .2));
}
.breadcrumb-bar .container {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--color-text-muted);
    flex-wrap: wrap;
}
.breadcrumb-bar a {
    color: var(--color-text-secondary);
    transition: color .25s ease;
}
.breadcrumb-bar a:hover {
    color: var(--color-primary);
}
.breadcrumb-bar .sep {
    color: var(--color-text-muted);
    font-size: 12px;
}
.breadcrumb-bar .current {
    color: var(--color-text-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 320px;
}
.article-layout {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: 48px;
    margin-top: 48px;
    align-items: start;
}
.article-main {
    min-width: 0;
}
.article-header {
    margin-bottom: 32px;
}
.article-header h1 {
    font-size: clamp(30px, 4vw, 44px);
    font-weight: 700;
    line-height: 1.3;
    color: var(--color-text-primary);
    letter-spacing: .01em;
    margin-bottom: 20px;
}
.article-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    font-size: 14px;
    color: var(--color-text-muted);
}
.article-meta span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.article-meta i {
    font-size: 13px;
    color: var(--color-primary);
}
.article-meta .meta-tag {
    color: var(--color-primary);
    background: rgba(43, 197, 242, .08);
    border: 1px solid var(--color-border-accent);
    padding: 3px 12px;
    border-radius: 999px;
    font-size: 13px;
}
.article-body {
    background: var(--color-surface);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    padding: 40px 44px;
    box-shadow: var(--shadow-card);
    line-height: 1.85;
    word-wrap: break-word;
}
.article-body > p:first-of-type {
    font-size: 18px;
    line-height: 1.9;
    color: var(--color-text-secondary);
}
.article-body p {
    margin-bottom: 20px;
    font-size: 16px;
    line-height: 1.85;
    color: rgba(234, 244, 255, .85);
    text-wrap: pretty;
}
.article-body h2 {
    font-size: 26px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin: 40px 0 18px;
    padding-left: 14px;
    border-left: 4px solid var(--color-primary);
    border-radius: 2px;
}
.article-body h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--color-text-primary);
    margin: 32px 0 14px;
}
.article-body h4 {
    font-size: 17px;
    font-weight: 600;
    color: var(--color-text-primary);
    margin: 24px 0 12px;
}
.article-body ul {
    margin: 0 0 20px;
    padding: 0;
}
.article-body ul li {
    position: relative;
    padding-left: 24px;
    margin-bottom: 10px;
    color: rgba(234, 244, 255, .85);
}
.article-body ul li::before {
    content: "";
    position: absolute;
    left: 4px;
    top: 10px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-primary);
    box-shadow: 0 0 8px rgba(43, 197, 242, .5);
}
.article-body ol {
    margin: 0 0 20px;
    padding-left: 20px;
    counter-reset: item;
}
.article-body ol li {
    counter-increment: item;
    padding-left: 6px;
    margin-bottom: 10px;
    color: rgba(234, 244, 255, .85);
}
.article-body ol li::marker {
    color: var(--color-primary);
    font-weight: 600;
}
.article-body blockquote {
    margin: 28px 0;
    padding: 20px 24px;
    background: rgba(43, 197, 242, .04);
    border-left: 4px solid var(--color-primary);
    border-radius: 0 10px 10px 0;
    color: var(--color-text-secondary);
    font-style: italic;
}
.article-body img {
    border-radius: 12px;
    border: 1px solid var(--color-border-light);
    margin: 28px 0;
    width: 100%;
}
.article-body a {
    border-bottom: 1px solid rgba(43, 197, 242, .4);
    padding-bottom: 1px;
}
.article-body a:hover {
    border-bottom-color: var(--color-primary);
}
.article-body code {
    background: rgba(255, 255, 255, .06);
    padding: 2px 8px;
    border-radius: 6px;
    font-size: 14px;
    color: var(--color-accent);
    border: 1px solid rgba(255, 255, 255, .08);
}
.article-body hr {
    border: none;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-border-light), transparent);
    margin: 36px 0;
}
.article-body table {
    width: 100%;
    margin: 24px 0;
    border-collapse: collapse;
    font-size: 15px;
}
.article-body table th {
    background: rgba(43, 197, 242, .08);
    color: var(--color-text-primary);
    padding: 12px 16px;
    text-align: left;
    font-weight: 600;
    border: 1px solid var(--color-border-light);
}
.article-body table td {
    padding: 10px 16px;
    border: 1px solid var(--color-border-light);
    color: rgba(234, 244, 255, .8);
}
.article-body table tr:hover td {
    background: rgba(255, 255, 255, .02);
}
.article-end {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 32px;
    padding: 20px 24px;
    background: var(--color-bg-1);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-md);
}
.article-source {
    display: flex;
    align-items: center;
    gap: 10px;
}
.article-source .source-label {
    font-size: 13px;
    color: var(--color-text-muted);
    padding: 3px 10px;
    border-radius: 999px;
    background: rgba(255, 255, 255, .04);
    border: 1px solid var(--color-border-light);
}
.article-source .source-name {
    font-size: 14px;
    color: var(--color-text-secondary);
}
.back-list {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-primary);
    padding: 8px 16px;
    border-radius: 8px;
    background: rgba(43, 197, 242, .06);
    border: 1px solid var(--color-border-accent);
    transition: background .25s ease, box-shadow .25s ease;
}
.back-list:hover {
    background: rgba(43, 197, 242, .12);
    box-shadow: 0 0 12px rgba(43, 197, 242, .2);
}
.article-sidebar {
    min-width: 0;
}
.sidebar-widget {
    background: var(--color-surface);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    padding: 28px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-card);
}
.sidebar-widget h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 18px;
    padding-left: 14px;
    position: relative;
}
.sidebar-widget h3::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 20px;
    border-radius: 4px;
    background: linear-gradient(180deg, var(--color-primary), var(--color-primary-deep));
    box-shadow: 0 0 10px rgba(43, 197, 242, .4);
}
.latest-list li {
    border-bottom: 1px solid rgba(255, 255, 255, .05);
    padding: 12px 0;
}
.latest-list li:last-child {
    border-bottom: none;
    padding-bottom: 0;
}
.latest-list li:first-child {
    padding-top: 0;
}
.latest-list a {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 14px;
    color: var(--color-text-secondary);
    line-height: 1.5;
    transition: color .25s ease;
}
.latest-list a:hover {
    color: var(--color-primary);
}
.latest-list .latest-num {
    font-family: var(--font-num);
    font-size: 13px;
    color: var(--color-text-muted);
    flex-shrink: 0;
    margin-top: 2px;
    width: 28px;
    height: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, .04);
    border-radius: 6px;
    font-weight: 600;
}
.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.tag-cloud .tag {
    font-size: 13px;
    color: var(--color-text-secondary);
    padding: 6px 14px;
    background: rgba(255, 255, 255, .04);
    border: 1px solid var(--color-border-light);
    border-radius: 999px;
    transition: all .25s ease;
}
.tag-cloud .tag:hover {
    color: var(--color-primary);
    border-color: var(--color-border-accent);
    box-shadow: 0 0 12px rgba(43, 197, 242, .15);
}
.not-found-box {
    background: var(--color-surface);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    padding: 80px 40px;
    text-align: center;
    box-shadow: var(--shadow-card);
}
.not-found-box .nf-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: rgba(43, 197, 242, .08);
    border: 1px solid var(--color-border-accent);
    color: var(--color-primary);
    font-size: 28px;
    margin-bottom: 24px;
}
.not-found-box p {
    font-size: 18px;
    color: var(--color-text-secondary);
    margin-bottom: 28px;
}
.related-section {
    position: relative;
    z-index: 1;
    margin-top: 64px;
    padding-top: 56px;
    border-top: 1px solid rgba(255, 255, 255, .06);
}
.related-title {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 32px;
}
.related-title h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--color-text-primary);
    position: relative;
    padding-left: 16px;
}
.related-title h2::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    height: 28px;
    border-radius: 4px;
    background: linear-gradient(180deg, var(--color-primary), transparent);
    box-shadow: 0 0 16px rgba(43, 197, 242, .5);
}
.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.related-card {
    display: flex;
    gap: 16px;
    background: var(--color-surface);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-md);
    padding: 14px;
    transition: background .3s ease, border-color .3s ease, box-shadow .3s ease, transform .3s ease;
}
.related-card:hover {
    background: rgba(255, 255, 255, .07);
    border-color: var(--color-border-accent);
    box-shadow: var(--shadow-hover), 0 0 0 1px rgba(43, 197, 242, .15);
    transform: translateY(-4px);
}
.related-cover {
    width: 120px;
    height: 84px;
    flex-shrink: 0;
    border-radius: 8px;
    overflow: hidden;
    position: relative;
    background: linear-gradient(135deg, #0F1A2C, #1976D2);
}
.related-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .4s ease;
}
.related-card:hover .related-cover img {
    transform: scale(1.06);
}
.related-cover::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border: 1px solid rgba(43, 197, 242, .2);
    border-radius: 8px;
}
.related-info {
    min-width: 0;
    display: flex;
    flex-direction: column;
}
.related-info h3 {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-text-primary);
    line-height: 1.45;
    margin-bottom: 6px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.related-info p {
    font-size: 13px;
    color: var(--color-text-muted);
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
}
.related-date {
    font-size: 12px;
    color: var(--color-text-muted);
    display: inline-flex;
    align-items: center;
    gap: 5px;
    margin-top: 6px;
}
.related-date i {
    font-size: 11px;
    color: var(--color-primary);
}
.site-footer {
    background: #05070D;
    position: relative;
    padding: 64px 0 0;
    overflow: hidden;
}
.site-footer::before {
    content: "";
    position: absolute;
    top: -120px;
    left: 0;
    width: 360px;
    height: 360px;
    background: radial-gradient(circle, rgba(43, 197, 242, .08), transparent 70%);
    pointer-events: none;
}
.site-footer::after {
    content: "";
    position: absolute;
    bottom: -100px;
    right: 0;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(43, 197, 242, .06), transparent 70%);
    pointer-events: none;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255, 255, 255, .06);
    position: relative;
    z-index: 1;
}
.footer-brand .brand {
    margin-bottom: 16px;
}
.footer-desc {
    font-size: 14px;
    line-height: 1.7;
    color: var(--color-text-muted);
    max-width: 320px;
    margin-bottom: 16px;
}
.footer-online {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--color-success);
    padding: 6px 16px;
    background: rgba(46, 230, 168, .06);
    border: 1px solid rgba(46, 230, 168, .25);
    border-radius: 999px;
}
.footer-online .dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--color-success);
    animation: onlinePulse 2s ease-in-out infinite;
}
.footer-col h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 18px;
    letter-spacing: .04em;
}
.footer-col ul li {
    margin-bottom: 10px;
}
.footer-col ul a {
    font-size: 14px;
    color: var(--color-text-muted);
    transition: color .25s ease, padding-left .25s ease;
    display: inline-block;
}
.footer-col ul a:hover {
    color: var(--color-primary);
    padding-left: 4px;
}
.footer-bottom {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    padding: 24px 0 28px;
    font-size: 13px;
    color: var(--color-text-muted);
}
@media (max-width: 1024px) {
    .site-nav {
        display: none;
    }
    .header-actions .countdown-badge,
    .header-actions .online-badge {
        display: none;
    }
    .hamburger {
        display: flex;
        margin-left: auto;
    }
    .article-layout {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .article-sidebar {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 24px;
    }
    .sidebar-widget {
        margin-bottom: 0;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
}
@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }
    .site-header {
        height: 56px;
    }
    .header-actions .btn-glow {
        min-width: 92px;
        height: 36px;
        font-size: 14px;
    }
    .brand-badge {
        width: 32px;
        height: 32px;
        font-size: 14px;
        border-radius: 10px;
    }
    .brand-text {
        font-size: 17px;
    }
    .mobile-drawer {
        top: 56px;
    }
    .breadcrumb-bar {
        padding: 16px 0;
    }
    .breadcrumb-bar .current {
        max-width: 140px;
    }
    .article-layout {
        margin-top: 28px;
    }
    .article-header h1 {
        font-size: 26px;
        line-height: 1.35;
    }
    .article-meta {
        gap: 10px;
        font-size: 13px;
    }
    .article-body {
        padding: 24px 18px;
        border-radius: var(--radius-md);
    }
    .article-body > p:first-of-type {
        font-size: 16px;
    }
    .article-body h2 {
        font-size: 21px;
    }
    .article-body h3 {
        font-size: 18px;
    }
    .article-end {
        padding: 16px;
    }
    .article-sidebar {
        grid-template-columns: 1fr;
    }
    .related-grid {
        grid-template-columns: 1fr;
    }
    .related-card {
        max-width: 100%;
    }
    .related-cover {
        width: 100px;
        height: 70px;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
        padding-bottom: 36px;
    }
    .footer-bottom {
        flex-direction: column;
        gap: 8px;
        align-items: flex-start;
    }
}
@media (max-width: 480px) {
    .header-actions {
        gap: 8px;
    }
    .header-actions .btn-glow {
        min-width: 84px;
        padding: 0 14px;
        font-size: 13px;
    }
    .article-header h1 {
        font-size: 22px;
    }
    .article-body {
        padding: 20px 14px;
    }
}
@media (max-width: 640px) {
    .article-body table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }
}

/* roulang page: category1 */
:root{
  --color-bg-0:#060B16;
  --color-bg-1:#0A1220;
  --color-surface:rgba(15,26,44,0.72);
  --color-surface-glass:rgba(255,255,255,0.05);
  --color-primary:#2BC5F2;
  --color-primary-deep:#1976D2;
  --color-accent:#F2B64B;
  --color-success:#2EE6A8;
  --color-danger:#FF5470;
  --color-text-primary:#EAF4FF;
  --color-text-secondary:#92A9C9;
  --color-text-muted:#5F7396;
  --color-border-light:rgba(255,255,255,0.12);
  --color-border-accent:rgba(43,197,242,0.4);
  --glow-primary:0 0 24px rgba(43,197,242,0.45);
  --glow-accent:0 0 20px rgba(242,182,75,0.35);
  --radius-card:16px;
  --radius-btn:10px;
  --radius-badge:999px;
  --shadow-card:0 8px 24px rgba(0,0,0,0.35);
  --shadow-card-hover:0 16px 48px rgba(0,0,0,0.5);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
  background:var(--color-bg-0);
  color:var(--color-text-primary);
  line-height:1.75;
  font-size:16px;
  text-wrap:pretty;
  -webkit-font-smoothing:antialiased;
  animation:pageFadeIn .6s ease-out;
}
@keyframes pageFadeIn{from{opacity:0;}to{opacity:1;}}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color .25s ease,border-color .25s ease,background .25s ease,box-shadow .25s ease,transform .25s ease;}
ul,ol{list-style:none;}
button,input{font-family:inherit;font-size:inherit;border:none;outline:none;background:none;color:inherit;}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid rgba(255,255,255,0.6);outline-offset:2px;}
::-webkit-scrollbar{width:10px;background:var(--color-bg-0);}
::-webkit-scrollbar-thumb{background:var(--color-primary-deep);border-radius:10px;}
::-webkit-scrollbar-track{background:var(--color-bg-1);}
.container{max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:110px 0;}
.section-head{margin-bottom:48px;}
.section-head h2{
  position:relative;
  font-size:clamp(28px,3.2vw,44px);
  font-weight:700;
  letter-spacing:.02em;
  line-height:1.3;
  padding-left:24px;
  color:var(--color-text-primary);
}
.section-head h2::before{
  content:"";
  position:absolute;
  left:0;
  top:50%;
  transform:translateY(-50%);
  width:6px;
  height:28px;
  background:var(--color-primary);
  box-shadow:var(--glow-primary);
  border-radius:0 3px 3px 0;
}
.section-head p{
  color:var(--color-text-secondary);
  font-size:18px;
  line-height:1.7;
  margin-top:12px;
  max-width:680px;
}
.section-head.left-align{margin-bottom:32px;}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 28px;
  border-radius:var(--radius-btn);
  font-size:clamp(16px,1.6vw,18px);
  font-weight:600;
  cursor:pointer;
  transition:transform .25s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease;
  white-space:nowrap;
  min-width:44px;
  min-height:44px;
}
.btn-primary{
  background:linear-gradient(135deg,#2BC5F2 0%,#1976D2 100%);
  color:#06121F;
  box-shadow:0 0 24px rgba(43,197,242,0.45);
}
.btn-primary:hover{
  transform:translateY(-2px);
  box-shadow:0 0 44px rgba(43,197,242,0.75);
}
.btn-primary:active{
  transform:translateY(0);
  box-shadow:0 0 16px rgba(43,197,242,0.4);
}
.btn-ghost{
  background:rgba(255,255,255,0.06);
  border:1px solid rgba(255,255,255,0.25);
  color:var(--color-text-primary);
}
.btn-ghost:hover{
  background:rgba(255,255,255,0.12);
  border-color:var(--color-primary);
  transform:translateY(-2px);
}
.btn-ghost:active{transform:translateY(0);}
.btn-lg{height:54px;padding:0 40px;font-size:18px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-badge{
  width:38px;height:38px;
  border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(43,197,242,.25),rgba(25,118,210,.1));
  border:1px solid var(--color-border-accent);
  color:var(--color-primary);
  font-size:18px;
  box-shadow:var(--glow-primary);
}
.brand-text{
  font-size:20px;
  font-weight:700;
  color:var(--color-text-primary);
  letter-spacing:.02em;
  white-space:nowrap;
}
.brand-text span{color:rgba(234,244,255,.72);font-weight:500;}
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:200;
  height:64px;
  background:rgba(6,11,22,0.72);
  backdrop-filter:blur(20px) saturate(160%);
  -webkit-backdrop-filter:blur(20px) saturate(160%);
  transition:background .3s ease,box-shadow .3s ease,border-color .3s ease;
  border-bottom:1px solid transparent;
}
.site-header.scrolled{
  background:rgba(6,11,22,0.92);
  border-bottom:1px solid transparent;
  background-image:linear-gradient(90deg,transparent,rgba(43,197,242,.35),transparent);
  background-position:bottom;
  background-size:100% 1px;
  background-repeat:no-repeat;
}
.nav-inner{display:flex;align-items:center;height:64px;gap:24px;}
.site-nav{display:flex;align-items:center;gap:32px;margin:0 auto;}
.nav-link{
  position:relative;
  font-size:16px;
  font-weight:500;
  color:var(--color-text-secondary);
  padding:6px 2px;
  transition:color .25s ease;
  white-space:nowrap;
}
.nav-link:hover{color:var(--color-text-primary);}
.nav-link.active{color:var(--color-text-primary);}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:-4px;
  transform:translateX(-50%);
  width:24px;height:3px;
  border-radius:3px;
  background:var(--color-primary);
  box-shadow:var(--glow-primary);
}
.nav-status{display:flex;align-items:center;gap:12px;margin-left:auto;flex-shrink:0;}
.countdown-badge,.online-badge{
  display:inline-flex;align-items:center;gap:8px;
  height:32px;padding:0 14px;
  border-radius:var(--radius-badge);
  background:rgba(255,255,255,0.05);
  border:1px solid var(--color-border-light);
  font-size:13px;
  color:var(--color-text-secondary);
  white-space:nowrap;
}
.countdown-badge{
  border-color:rgba(242,182,75,0.4);
  color:var(--color-accent);
  font-family:"DIN Alternate","Barlow Condensed","Rajdhani",sans-serif;
}
.countdown-badge em{font-style:normal;font-weight:600;letter-spacing:.06em;}
.pulse-dot{width:6px;height:6px;border-radius:50%;background:var(--color-accent);box-shadow:0 0 0 0 rgba(242,182,75,.6);animation:pulse 1.8s infinite;}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(242,182,75,.5);}
  70%{box-shadow:0 0 0 8px rgba(242,182,75,0);}
  100%{box-shadow:0 0 0 0 rgba(242,182,75,0);}
}
.online-badge i{color:var(--color-success);font-size:8px;}
.nav-cta{height:44px;padding:0 24px;font-size:16px;min-width:104px;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  cursor:pointer;
  border-radius:8px;
  flex-shrink:0;
}
.nav-toggle span{width:20px;height:2px;background:var(--color-text-primary);border-radius:2px;transition:transform .3s ease,opacity .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);}
.mobile-menu{
  display:none;
  position:fixed;
  top:64px;left:0;right:0;bottom:0;z-index:199;
  background:rgba(6,11,22,0.98);
  backdrop-filter:blur(24px);
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:12px;
  opacity:0;
  visibility:hidden;
  transition:opacity .3s ease,visibility .3s ease;
}
.mobile-menu.open{opacity:1;visibility:visible;display:flex;}
.mobile-menu a{
  font-size:24px;
  font-weight:600;
  color:var(--color-text-secondary);
  padding:12px 20px;
  border-radius:10px;
  transition:color .25s ease,background .25s ease;
}
.mobile-menu a.active{color:var(--color-text-primary);background:rgba(43,197,242,0.1);}
.mobile-menu a:hover{color:var(--color-text-primary);}
.mobile-status{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:10px;
  margin-top:24px;
  font-size:14px;
  color:var(--color-text-secondary);
  text-align:center;
}
.mobile-status i{color:var(--color-success);font-size:8px;margin-right:4px;}
.page-hero{
  position:relative;
  overflow:hidden;
  padding:150px 0 80px;
  background:
    radial-gradient(ellipse at 20% 20%,rgba(43,197,242,.18),transparent 50%),
    radial-gradient(ellipse at 80% 80%,rgba(25,118,210,.16),transparent 50%),
    linear-gradient(160deg,var(--color-bg-0) 0%,var(--color-bg-1) 60%,var(--color-bg-0) 100%);
}
.hero-bg{
  position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  opacity:.28;
  mix-blend-mode:screen;
}
.hero-bg::after{
  content:"";
  position:absolute;inset:0;
  background:
    linear-gradient(rgba(6,11,22,0.72),rgba(6,11,22,0.86)),
    repeating-linear-gradient(90deg,transparent 0 3px,rgba(43,197,242,.06) 3px 4px);
}
.hero-arch{
  position:relative;
  z-index:2;
  max-width:820px;
  margin:0 auto;
  border-radius:28px;
  border:1px solid var(--color-border-light);
  background:linear-gradient(160deg,rgba(15,26,44,.75),rgba(10,18,32,.55));
  box-shadow:var(--shadow-card),0 0 80px rgba(43,197,242,.12);
  padding:64px 48px 56px;
  text-align:center;
  overflow:visible;
}
.hero-glow-top{
  position:absolute;
  top:-1px;left:50%;transform:translateX(-50%);
  width:220px;height:3px;
  border-radius:3px;
  background:linear-gradient(90deg,transparent,var(--color-primary),transparent);
  box-shadow:0 0 20px rgba(43,197,242,.8);
}
.hero-float-badge{
  position:absolute;
  top:70px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:42px;
  padding:0 16px;
  border-radius:var(--radius-badge);
  background:rgba(15,26,44,.85);
  border:1px solid var(--color-border-light);
  box-shadow:var(--shadow-card);
  font-size:14px;
  color:var(--color-text-secondary);
  white-space:nowrap;
  backdrop-filter:blur(10px);
}
.hero-float-badge i{color:var(--color-primary);}
.hero-float-badge.left{left:-40px;}
.hero-float-badge.right{right:-40px;}
.hero-kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 16px;
  border-radius:var(--radius-badge);
  background:rgba(43,197,242,0.1);
  border:1px solid var(--color-border-accent);
  color:var(--color-text-secondary);
  font-size:14px;
  letter-spacing:.04em;
}
.hero-kicker i{color:var(--color-primary);}
.hero-arch h1{
  font-size:clamp(36px,5vw,64px);
  font-weight:700;
  letter-spacing:.02em;
  color:var(--color-text-primary);
  line-height:1.2;
  margin:22px 0 12px;
}
.hero-line{
  display:block;
  width:48px;height:3px;
  margin:0 auto 18px;
  border-radius:3px;
  background:var(--color-primary);
  box-shadow:var(--glow-primary);
}
.hero-sub{
  color:var(--color-text-secondary);
  font-size:clamp(16px,2vw,19px);
  line-height:1.75;
  max-width:520px;
  margin:0 auto;
}
.hero-actions{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:16px;
  margin-top:34px;
  flex-wrap:wrap;
}
.hero-lightline{
  position:absolute;
  left:0;right:0;bottom:0;
  height:1px;
  background:linear-gradient(90deg,transparent,var(--color-primary),transparent);
  opacity:.6;
}
.steps-section{
  background:var(--color-bg-0);
  position:relative;
}
.steps-section::before{
  content:"";
  position:absolute;
  top:0;left:50%;
  transform:translateX(-50%);
  width:600px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(43,197,242,.4),transparent);
}
.steps-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.step-card{
  position:relative;
  border-radius:var(--radius-card);
  background:var(--color-surface);
  border:1px solid var(--color-border-light);
  box-shadow:var(--shadow-card);
  padding:32px 24px 28px;
  overflow:hidden;
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease,background .3s ease;
}
.step-card:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-card-hover),0 0 0 1px var(--color-border-accent);
  background:rgba(15,26,44,0.88);
}
.step-num{
  position:absolute;
  top:16px;right:20px;
  font-family:"DIN Alternate","Barlow Condensed","Rajdhani",sans-serif;
  font-size:52px;
  font-weight:700;
  line-height:1;
  color:rgba(43,197,242,0.14);
  transition:color .3s ease;
}
.step-card:hover .step-num{color:rgba(43,197,242,0.42);}
.step-icon{
  width:52px;height:52px;
  border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(43,197,242,.22),rgba(25,118,210,.06));
  border:1px solid var(--color-border-accent);
  color:var(--color-primary);
  font-size:22px;
  margin-bottom:20px;
  box-shadow:0 0 18px rgba(43,197,242,.12);
}
.step-card h3{
  font-size:20px;
  font-weight:600;
  color:var(--color-text-primary);
  margin-bottom:10px;
}
.step-card p{
  font-size:15px;
  color:var(--color-text-secondary);
  line-height:1.7;
}
.faq-links-section{
  background:var(--color-bg-1);
  position:relative;
  overflow:hidden;
}
.faq-links-section::before{
  content:"";
  position:absolute;
  top:-80px;right:-80px;
  width:280px;height:280px;
  border-radius:50%;
  background:rgba(43,197,242,.06);
  filter:blur(60px);
}
.faq-links-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:24px;
}
.faq-link-card{
  position:relative;
  display:flex;
  align-items:center;
  gap:20px;
  border-radius:var(--radius-card);
  background:rgba(15,26,44,0.72);
  border:1px solid var(--color-border-light);
  box-shadow:var(--shadow-card);
  padding:28px 26px;
  overflow:hidden;
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease,background .3s ease;
}
.faq-link-card::after{
  content:"";
  position:absolute;
  left:0;top:0;bottom:0;
  width:3px;
  background:var(--color-primary);
  transform:scaleY(0);
  transform-origin:top;
  transition:transform .3s ease;
}
.faq-link-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-card-hover),0 0 0 1px var(--color-border-accent);
  background:rgba(15,26,44,0.92);
}
.faq-link-card:hover::after{transform:scaleY(1);}
.faq-link-icon{
  width:56px;height:56px;
  flex-shrink:0;
  border-radius:16px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(43,197,242,.2),rgba(25,118,210,.08));
  border:1px solid var(--color-border-accent);
  color:var(--color-primary);
  font-size:24px;
}
.faq-link-text h3{font-size:19px;font-weight:600;color:var(--color-text-primary);margin-bottom:6px;}
.faq-link-text p{font-size:14px;color:var(--color-text-secondary);line-height:1.65;}
.faq-link-card>i{
  margin-left:auto;
  color:var(--color-text-muted);
  font-size:18px;
  transition:transform .25s ease,color .25s ease;
  flex-shrink:0;
}
.faq-link-card:hover>i{transform:translateX(4px);color:var(--color-primary);}
.highlights-section{background:var(--color-bg-0);position:relative;}
.highlight-row{
  display:grid;
  grid-template-columns:1.05fr 1fr;
  gap:56px;
  align-items:center;
}
.highlight-media{
  position:relative;
  border-radius:22px;
  overflow:hidden;
  border:1px solid var(--color-border-light);
  box-shadow:var(--shadow-card),0 0 60px rgba(43,197,242,.08);
}
.highlight-media img{width:100%;height:100%;object-fit:cover;border-radius:22px;}
.media-tag{
  position:absolute;
  left:20px;bottom:20px;
  padding:8px 18px;
  border-radius:var(--radius-badge);
  background:rgba(6,11,22,.82);
  border:1px solid var(--color-border-accent);
  color:var(--color-primary);
  font-size:14px;
  letter-spacing:.04em;
  backdrop-filter:blur(8px);
}
.highlight-list{margin-top:26px;}
.highlight-list li{
  display:flex;
  align-items:flex-start;
  gap:14px;
  padding:14px 18px;
  border-radius:14px;
  background:rgba(255,255,255,0.04);
  border:1px solid rgba(255,255,255,0.06);
  margin-bottom:12px;
  color:var(--color-text-secondary);
  font-size:16px;
  line-height:1.65;
  transition:border-color .25s ease,background .25s ease;
}
.highlight-list li:hover{
  border-color:var(--color-border-accent);
  background:rgba(43,197,242,0.06);
}
.highlight-list i{color:var(--color-success);font-size:16px;margin-top:6px;flex-shrink:0;}
.scenarios-section{background:var(--color-bg-1);}
.scenario-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:24px;
}
.scenario-card{
  border-radius:var(--radius-card);
  overflow:hidden;
  background:var(--color-surface);
  border:1px solid var(--color-border-light);
  box-shadow:var(--shadow-card);
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.scenario-card:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-card-hover),0 0 0 1px var(--color-border-accent);
}
.scenario-img{position:relative;aspect-ratio:16/9;overflow:hidden;}
.scenario-img img{width:100%;height:100%;object-fit:cover;}
.scenario-img::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 50%,rgba(6,11,22,.75));
}
.scenario-body{padding:26px 26px 30px;}
.scenario-body h3{font-size:20px;font-weight:600;color:var(--color-text-primary);margin-bottom:10px;}
.scenario-body p{font-size:15px;color:var(--color-text-secondary);line-height:1.7;margin-bottom:18px;}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--color-primary);
  font-size:15px;
  font-weight:500;
  transition:gap .25s ease,color .25s ease;
}
.text-link:hover{color:var(--color-text-primary);gap:12px;}
.faq-section{background:var(--color-bg-0);}
.faq-layout{
  display:grid;
  grid-template-columns:220px 1fr;
  gap:48px;
}
.faq-cats{
  display:flex;
  flex-direction:column;
  gap:8px;
}
.faq-cat{
  padding:14px 18px;
  border-radius:12px;
  font-size:16px;
  font-weight:500;
  color:var(--color-text-secondary);
  background:rgba(255,255,255,0.03);
  border:1px solid transparent;
  cursor:pointer;
  transition:color .25s ease,background .25s ease,border-color .25s ease,box-shadow .25s ease;
  text-align:left;
}
.faq-cat.active{
  color:var(--color-text-primary);
  background:rgba(43,197,242,0.08);
  border-color:var(--color-border-accent);
  box-shadow:0 0 20px rgba(43,197,242,0.06);
  border-left:3px solid var(--color-primary);
  padding-left:15px;
}
.faq-cat:hover{color:var(--color-text-primary);}
.faq-list{border-top:1px solid var(--color-border-light);}
.faq-item{
  border-bottom:1px solid var(--color-border-light);
  transition:background .2s ease;
}
.faq-item.active{background:rgba(43,197,242,0.02);}
.faq-q{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:22px 8px;
  cursor:pointer;
  font-size:16px;
  font-weight:600;
  color:var(--color-text-primary);
  transition:color .25s ease;
}
.faq-q:hover{color:var(--color-primary);}
.faq-q i{
  flex-shrink:0;
  color:var(--color-text-muted);
  font-size:18px;
  transition:transform .3s ease,color .3s ease;
}
.faq-item.active .faq-q i{
  transform:rotate(45deg);
  color:var(--color-primary);
}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .35s ease,padding .35s ease;
  padding:0 8px;
}
.faq-item.active .faq-a{
  max-height:240px;
  padding-bottom:18px;
}
.faq-a p{
  font-size:15px;
  color:var(--color-text-secondary);
  line-height:1.7;
  padding-right:32px;
}
.cta-section{
  background:var(--color-bg-1);
  position:relative;
  overflow:hidden;
}
.cta-section::before{
  content:"";
  position:absolute;
  left:50%;top:50%;
  transform:translate(-50%,-50%);
  width:500px;height:500px;
  background:radial-gradient(circle,rgba(43,197,242,.12),transparent 65%);
  filter:blur(40px);
}
.cta-panel{
  position:relative;
  z-index:2;
  max-width:760px;
  margin:0 auto;
  text-align:center;
  border-radius:24px;
  background:linear-gradient(160deg,rgba(15,26,44,.82),rgba(10,18,32,.66));
  border:1px solid var(--color-border-light);
  box-shadow:var(--shadow-card);
  padding:64px 48px;
}
.cta-panel h2{
  font-size:clamp(28px,3.5vw,44px);
  font-weight:700;
  color:var(--color-text-primary);
  margin-bottom:14px;
}
.cta-panel p{
  font-size:17px;
  color:var(--color-text-secondary);
  max-width:460px;
  margin:0 auto 32px;
}
.site-footer{
  background:#05070D;
  border-top:1px solid rgba(255,255,255,0.07);
  position:relative;
  overflow:hidden;
  padding:70px 0 0;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:-120px;left:10%;
  width:300px;height:300px;
  background:radial-gradient(circle,rgba(43,197,242,.09),transparent 70%);
  filter:blur(50px);
}
.site-footer::after{
  content:"";
  position:absolute;
  right:5%;top:-60px;
  width:240px;height:240px;
  background:radial-gradient(circle,rgba(242,182,75,.07),transparent 70%);
  filter:blur(40px);
}
.footer-grid{
  position:relative;z-index:2;
  display:grid;
  grid-template-columns:1.4fr 0.8fr 0.9fr 1fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand .brand{display:inline-flex;}
.footer-desc{
  font-size:14px;
  color:var(--color-text-muted);
  line-height:1.7;
  margin-top:16px;
  max-width:300px;
}
.footer-online{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-top:16px;
  padding:6px 14px;
  border-radius:var(--radius-badge);
  background:rgba(46,230,168,0.08);
  border:1px solid rgba(46,230,168,0.3);
  color:var(--color-success);
  font-size:13px;
}
.footer-online .dot{width:6px;height:6px;border-radius:50%;background:var(--color-success);box-shadow:0 0 8px rgba(46,230,168,.7);}
.footer-col h4{
  font-size:16px;
  color:var(--color-text-primary);
  font-weight:600;
  margin-bottom:18px;
}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{
  font-size:14px;
  color:var(--color-text-muted);
  transition:color .25s ease,padding-left .25s ease;
}
.footer-col ul a:hover{color:var(--color-primary);padding-left:4px;}
.footer-bottom{
  position:relative;z-index:2;
  border-top:1px solid rgba(255,255,255,0.07);
  padding:22px 0;
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--color-text-muted);
}
@media (max-width:1024px){
  .section{padding:80px 0;}
  .steps-grid{grid-template-columns:repeat(2,1fr);}
  .faq-links-row{grid-template-columns:1fr 1fr;}
  .highlight-row{grid-template-columns:1fr;gap:36px;}
  .scenario-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .countdown-badge .cd-label{display:none;}
  .nav-status{gap:8px;}
}
@media (max-width:768px){
  .site-header,.nav-inner{height:56px;}
  .site-nav{display:none;}
  .nav-status{display:none;}
  .nav-cta{display:none;}
  .nav-toggle{display:flex;}
  .mobile-menu{top:56px;}
  .mobile-menu.open{display:flex;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:32px;}
  .hero-arch{padding:44px 24px 40px;}
  .hero-float-badge{display:none;}
  .faq-links-row{grid-template-columns:1fr;}
  .faq-layout{grid-template-columns:1fr;gap:24px;}
  .faq-cats{
    flex-direction:row;
    overflow-x:auto;
    padding-bottom:8px;
    scrollbar-width:none;
  }
  .faq-cats::-webkit-scrollbar{display:none;}
  .faq-cat{white-space:nowrap;}
  .cta-panel{padding:44px 24px;}
  .footer-bottom{flex-direction:column;text-align:center;}
}
@media (max-width:640px){
  .container{padding:0 16px;}
  .steps-grid{grid-template-columns:1fr;}
  .hero-actions{flex-direction:column;}
  .hero-actions .btn{width:100%;}
  .faq-links-row{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .highlight-list li{font-size:14px;}
  .scenario-body{padding:22px 20px 26px;}
  .faq-item.active .faq-a{max-height:320px;}
}

/* roulang page: category2 */
:root {
  --color-bg-0: #060B16;
  --color-bg-1: #0A1220;
  --color-surface: #0F1A2C;
  --color-surface-glass: rgba(255,255,255,0.05);
  --color-primary: #2BC5F2;
  --color-primary-deep: #1976D2;
  --color-accent: #F2B64B;
  --color-success: #2EE6A8;
  --color-danger: #FF5470;
  --color-text-primary: #EAF4FF;
  --color-text-secondary: #92A9C9;
  --color-text-muted: #5F7396;
  --color-border-light: rgba(255,255,255,0.12);
  --color-border-accent: rgba(43,197,242,0.4);
  --glow-primary: 0 0 24px rgba(43,197,242,0.45);
  --glow-accent: 0 0 20px rgba(242,182,75,0.35);
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --shadow-card: 0 8px 24px rgba(0,0,0,0.35);
  --shadow-hover: 0 16px 48px rgba(0,0,0,0.5);
  --font-cn: "PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
  --font-num: "DIN Alternate","Barlow Condensed","Rajdhani",sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-cn);
  background: var(--color-bg-0);
  color: var(--color-text-primary);
  line-height: 1.75;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  animation: pageFadeIn 0.6s ease both;
}

@keyframes pageFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

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

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

ul {
  list-style: none;
}

::selection {
  background: rgba(43,197,242,0.3);
  color: #fff;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid rgba(255,255,255,0.6);
  outline-offset: 2px;
  border-radius: 4px;
}

::-webkit-scrollbar {
  width: 10px;
  background: var(--color-bg-1);
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--color-primary), var(--color-primary-deep));
  border-radius: 5px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg-0);
}

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

/* ============ Buttons ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 26px;
  border-radius: var(--radius-sm);
  font-size: 16px;
  font-weight: 600;
  line-height: 1;
  min-height: 44px;
  transition: all 0.25s ease;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, #2BC5F2 0%, #1976D2 100%);
  color: #06121F;
  box-shadow: 0 0 24px rgba(43,197,242,0.45);
  border: none;
}

.btn-primary:hover {
  box-shadow: 0 0 44px rgba(43,197,242,0.75);
  transform: translateY(-2px);
  color: #06121F;
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 0 16px rgba(43,197,242,0.4);
}

.btn-ghost {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.25);
  color: var(--color-text-primary);
}

.btn-ghost:hover {
  background: rgba(255,255,255,0.12);
  border-color: var(--color-primary);
  color: var(--color-text-primary);
  transform: translateY(-2px);
}

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

.btn-lg {
  padding: 16px 44px;
  font-size: 18px;
  min-height: 52px;
}

/* ============ Header / Nav ============ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(6,11,22,0.72);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  border-bottom: 1px solid transparent;
  transition: background 0.35s ease, border-color 0.35s ease;
}

.site-header.scrolled {
  background: rgba(6,11,22,0.94);
  border-bottom-color: var(--color-border-light);
}

.nav-wrap {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text-primary);
  flex-shrink: 0;
}

.brand-badge {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(43,197,242,0.25), rgba(25,118,210,0.25));
  border: 1px solid var(--color-border-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: 16px;
  box-shadow: var(--glow-primary);
  flex-shrink: 0;
}

.brand-text {
  letter-spacing: 0.02em;
}

.brand-text span {
  color: rgba(234,244,255,0.85);
}

.site-nav {
  display: flex;
  gap: 4px;
  margin-left: auto;
}

.nav-link {
  padding: 8px 16px;
  font-size: 15px;
  color: var(--color-text-secondary);
  border-radius: 8px;
  position: relative;
  transition: color 0.2s;
}

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

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

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 22px;
  height: 2px;
  background: var(--color-primary);
  box-shadow: 0 0 8px var(--color-primary);
  border-radius: 2px;
}

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

.countdown-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(242,182,75,0.08);
  border: 1px solid rgba(242,182,75,0.4);
  color: var(--color-accent);
  font-size: 13px;
  font-family: var(--font-num);
  padding: 5px 12px;
  border-radius: 999px;
  white-space: nowrap;
}

.pulse-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  animation: pulse 1.6s ease-in-out infinite;
  flex-shrink: 0;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.online-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-success);
  font-size: 13px;
  white-space: nowrap;
}

.online-badge i {
  font-size: 8px;
}

.nav-cta {
  padding: 0 24px;
  min-width: 104px;
  height: 44px;
  flex-shrink: 0;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  border: 1px solid var(--color-border-light);
  color: var(--color-text-primary);
  font-size: 18px;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

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

/* ============ Mobile Drawer ============ */
.mobile-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  max-width: 360px;
  background: rgba(6,11,22,0.97);
  backdrop-filter: blur(24px);
  z-index: 1100;
  padding: 32px 28px;
  transform: translateX(100%);
  transition: transform 0.35s ease;
  display: flex;
  flex-direction: column;
  border-left: 1px solid var(--color-border-light);
}

.mobile-drawer.open {
  transform: translateX(0);
}

.drawer-close {
  align-self: flex-end;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  border: 1px solid var(--color-border-light);
  color: var(--color-text-primary);
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}

.drawer-close:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.drawer-link {
  display: block;
  padding: 16px 0;
  font-size: 24px;
  font-weight: 600;
  color: var(--color-text-primary);
  border-bottom: 1px solid var(--color-border-light);
  transition: color 0.2s, padding-left 0.2s;
}

.drawer-link:hover {
  color: var(--color-primary);
  padding-left: 8px;
}

.drawer-link.active {
  color: var(--color-primary);
}

.drawer-state {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 32px;
}

.drawer-cta {
  margin-top: 24px;
  width: 100%;
}

.drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  z-index: 1050;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
}

.drawer-overlay.show {
  opacity: 1;
  visibility: visible;
}

/* ============ FAQ Hero ============ */
.faq-hero {
  position: relative;
  min-height: 620px;
  display: flex;
  align-items: center;
  padding: 160px 0 110px;
  background:
    radial-gradient(ellipse at 72% 28%, rgba(43,197,242,0.16), transparent 52%),
    radial-gradient(ellipse at 18% 82%, rgba(242,182,75,0.08), transparent 42%),
    linear-gradient(180deg, #060B16 0%, #0A1220 68%, #060B16 100%);
  overflow: hidden;
}

.faq-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  opacity: 0.22;
  z-index: 0;
}

.faq-hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
  z-index: 1;
}

.faq-hero-content {
  position: relative;
  z-index: 2;
  max-width: 860px;
}

.faq-hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  border-radius: 999px;
  background: rgba(43,197,242,0.12);
  border: 1px solid var(--color-border-accent);
  color: var(--color-primary);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.08em;
  margin-bottom: 24px;
}

.faq-hero-tag i {
  font-size: 12px;
}

.faq-hero h1 {
  font-size: clamp(36px, 5vw, 64px);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 22px;
  letter-spacing: 0.02em;
}

.faq-hero h1 .text-primary {
  color: var(--color-primary);
  text-shadow: 0 0 30px rgba(43,197,242,0.5);
}

.faq-hero-sub {
  font-size: 18px;
  color: var(--color-text-secondary);
  max-width: 640px;
  line-height: 1.8;
  margin-bottom: 34px;
  text-wrap: pretty;
}

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

.faq-hero-stat {
  display: flex;
  gap: 40px;
  margin-top: 48px;
}

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

.faq-hero-stat-num {
  font-family: var(--font-num);
  font-size: 28px;
  font-weight: 700;
  color: var(--color-primary);
}

.faq-hero-stat-label {
  font-size: 13px;
  color: var(--color-text-muted);
  margin-top: 2px;
}

/* ============ Topic Pills ============ */
.faq-topics {
  padding: 56px 0 0;
}

.topic-pills {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.topic-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: 999px;
  background: var(--color-surface-glass);
  border: 1px solid var(--color-border-light);
  color: var(--color-text-secondary);
  font-size: 14px;
  transition: all 0.2s ease;
  cursor: default;
}

.topic-pill i {
  font-size: 13px;
}

.topic-pill:hover,
.topic-pill.active {
  color: var(--color-primary);
  border-color: var(--color-border-accent);
  background: rgba(43,197,242,0.08);
}

/* ============ FAQ List ============ */
.faq-list {
  padding: 84px 0 100px;
}

.faq-list .section-head {
  margin-bottom: 48px;
  max-width: 720px;
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 14px;
  border-radius: 999px;
  background: rgba(43,197,242,0.1);
  color: var(--color-primary);
  border: 1px solid var(--color-border-accent);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  margin-bottom: 16px;
}

.section-badge i {
  font-size: 10px;
}

.section-head h2 {
  font-size: clamp(28px, 3.2vw, 44px);
  font-weight: 700;
  padding-left: 16px;
  border-left: 6px solid var(--color-primary);
  margin-bottom: 14px;
  line-height: 1.3;
}

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

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

.faq-col {
  background: rgba(15,26,44,0.5);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: 8px 34px;
  box-shadow: var(--shadow-card);
}

.faq-item {
  padding: 28px 0;
}

.faq-item + .faq-item {
  border-top: 1px solid var(--color-border-light);
}

.faq-item h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 12px;
  line-height: 1.5;
  padding-left: 20px;
  position: relative;
}

.faq-item h3::before {
  content: '';
  position: absolute;
  left: 0;
  top: 11px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
  box-shadow: var(--glow-primary);
}

.faq-item p {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.8;
  text-wrap: pretty;
}

/* ============ Support Card ============ */
.support-card {
  padding: 0 0 100px;
}

.support-inner {
  background: linear-gradient(135deg, rgba(15,26,44,0.85), rgba(10,18,32,0.92));
  border: 1px solid var(--color-border-accent);
  border-radius: 24px;
  padding: 48px;
  display: flex;
  align-items: center;
  gap: 44px;
  box-shadow: var(--shadow-card), 0 0 40px rgba(43,197,242,0.08);
  position: relative;
  overflow: hidden;
}

.support-inner::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -80px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(43,197,242,0.12), transparent 70%);
  pointer-events: none;
}

.support-content {
  flex: 1;
  position: relative;
  z-index: 1;
}

.support-icon {
  display: inline-flex;
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: rgba(43,197,242,0.12);
  border: 1px solid var(--color-border-accent);
  color: var(--color-primary);
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 20px;
  box-shadow: var(--glow-primary);
}

.support-inner h3 {
  font-size: 26px;
  font-weight: 700;
  margin-bottom: 12px;
  line-height: 1.3;
}

.support-inner > .support-content p {
  color: var(--color-text-secondary);
  font-size: 16px;
  max-width: 480px;
  line-height: 1.7;
  margin-bottom: 28px;
  text-wrap: pretty;
}

.support-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.support-visual {
  flex: 0 0 38%;
  position: relative;
  z-index: 1;
}

.support-img {
  border-radius: 16px;
  border: 1px solid var(--color-border-light);
  box-shadow: 0 16px 48px rgba(0,0,0,0.5);
  aspect-ratio: 4/3;
  object-fit: cover;
  width: 100%;
}

/* ============ CTA ============ */
.cta-section {
  padding: 110px 0;
  text-align: center;
  background:
    radial-gradient(ellipse at center, rgba(43,197,242,0.1), transparent 58%),
    var(--color-bg-0);
  border-top: 1px solid var(--color-border-light);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  bottom: -100px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 200px;
  background: radial-gradient(ellipse, rgba(43,197,242,0.1), transparent 70%);
  pointer-events: none;
}

.cta-section h2 {
  font-size: clamp(30px, 4vw, 48px);
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}

.cta-section p {
  font-size: 16px;
  color: var(--color-text-secondary);
  max-width: 520px;
  margin: 0 auto 36px;
  line-height: 1.7;
  text-wrap: balance;
}

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

/* ============ Footer ============ */
.site-footer {
  background: #05070D;
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 72px 0 32px;
  position: relative;
  overflow: hidden;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 720px;
  height: 120px;
  background: radial-gradient(ellipse, rgba(43,197,242,0.05), transparent 70%);
  pointer-events: none;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
  position: relative;
  z-index: 1;
}

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

.footer-desc {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-bottom: 16px;
  max-width: 280px;
  line-height: 1.7;
}

.footer-online {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--color-success);
}

.footer-online .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-success);
  animation: pulse 1.6s ease-in-out infinite;
}

.footer-col h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--color-text-primary);
}

.footer-col ul li {
  margin-bottom: 8px;
}

.footer-col ul a {
  font-size: 14px;
  color: var(--color-text-secondary);
  transition: color 0.2s;
}

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

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: var(--color-text-muted);
  position: relative;
  z-index: 1;
}

/* ============ Responsive ============ */
@media (max-width: 1024px) {
  .site-nav {
    display: none;
  }

  .nav-state {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-cta {
    display: none;
  }

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

  .support-inner {
    flex-direction: column;
    padding: 40px 32px;
  }

  .support-visual {
    flex: 0 0 auto;
    width: 100%;
    max-width: 460px;
  }
}

@media (max-width: 768px) {
  .nav-wrap {
    height: 64px;
  }

  .brand-text {
    font-size: 17px;
  }

  .faq-hero {
    min-height: auto;
    padding: 130px 0 80px;
  }

  .faq-hero h1 {
    font-size: 36px;
  }

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

  .faq-hero-stat {
    gap: 24px;
    flex-wrap: wrap;
  }

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

  .faq-col {
    padding: 8px 24px;
  }

  .faq-list {
    padding: 64px 0 72px;
  }

  .support-card {
    padding: 0 0 72px;
  }

  .cta-section {
    padding: 80px 0;
  }

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

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

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

  .brand-badge {
    width: 32px;
    height: 32px;
    font-size: 14px;
    border-radius: 10px;
  }

  .brand-text {
    font-size: 16px;
  }

  .faq-hero {
    padding: 120px 0 64px;
  }

  .faq-hero h1 {
    font-size: 32px;
  }

  .faq-hero-sub {
    font-size: 15px;
    margin-bottom: 24px;
  }

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

  .faq-hero-stat {
    margin-top: 32px;
  }

  .topic-pills {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 8px;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }

  .topic-pills::-webkit-scrollbar {
    display: none;
  }

  .topic-pill {
    flex-shrink: 0;
  }

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

  .faq-col {
    padding: 8px 18px;
    border-radius: 16px;
  }

  .faq-item h3 {
    font-size: 16px;
  }

  .faq-item p {
    font-size: 14px;
  }

  .support-inner {
    padding: 32px 20px;
    border-radius: 18px;
  }

  .support-inner h3 {
    font-size: 21px;
  }

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

  .cta-section h2 {
    font-size: 28px;
  }

  .cta-section p {
    font-size: 15px;
  }

  .footer-grid {
    gap: 24px;
  }

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