/* roulang page: index */
:root {
  --bg-0: #070b13;
  --bg-1: #0c1320;
  --bg-2: #121c2e;
  --bg-3: #18233a;
  --primary: #d7ff3f;
  --secondary: #2fe6d4;
  --t1: #eef2f8;
  --t2: #9aaabd;
  --t3: #5d6b82;
  --line: rgba(255, 255, 255, .08);
  --danger: #ff5d73;
  --grad: linear-gradient(135deg, #d7ff3f, #2fe6d4);
  --ease: cubic-bezier(.22, .61, .36, 1);
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-pill: 999px;
}

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

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: var(--bg-0);
  color: var(--t1);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

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

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

ul, ol {
  list-style: none;
}

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

.section {
  padding: clamp(64px, 10vw, 112px) 0;
  position: relative;
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--primary);
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: 16px;
}

.section-eyebrow::before {
  content: '';
  width: 24px;
  height: 2px;
  background: var(--grad);
  border-radius: 2px;
}

.section h2 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.3;
  margin-bottom: 12px;
}

.section-desc {
  color: var(--t2);
  font-size: 15px;
  max-width: 460px;
  line-height: 1.75;
}

/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: 68px;
  background: rgba(7, 11, 19, .85);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid transparent;
  background-image: linear-gradient(rgba(7, 11, 19, .85), rgba(7, 11, 19, .85)), linear-gradient(90deg, rgba(215, 255, 63, .5), rgba(47, 230, 212, .5));
  background-origin: border-box;
  background-clip: padding-box, border-box;
}

.header-inner {
  height: 68px;
  display: flex;
  align-items: center;
  gap: 32px;
}

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

.logo-icon {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: var(--grad);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 18px rgba(215, 255, 63, .35);
}

.logo-icon svg {
  width: 20px;
  height: 20px;
  stroke: #070b13;
  stroke-width: 2.2;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.logo-text {
  font-size: 19px;
  font-weight: 900;
  letter-spacing: -.02em;
  color: var(--t1);
  white-space: nowrap;
}

.logo-badge {
  font-size: 11px;
  font-weight: 600;
  color: var(--primary);
  border: 1px solid rgba(215, 255, 63, .4);
  border-radius: 6px;
  padding: 2px 6px;
  letter-spacing: .06em;
  white-space: nowrap;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  margin-left: auto;
}

.nav-link {
  font-size: 14px;
  font-weight: 500;
  letter-spacing: .05em;
  color: var(--t2);
  position: relative;
  padding: 6px 2px;
  white-space: nowrap;
  transition: color .2s var(--ease);
}

.nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: var(--grad);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .25s var(--ease);
  border-radius: 2px;
}

.nav-link:hover {
  color: var(--t1);
}

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

.nav-link.active {
  color: var(--primary);
  text-shadow: 0 0 12px rgba(215, 255, 63, .5);
}

.nav-link.active::after {
  transform: scaleX(1);
  box-shadow: 0 0 12px rgba(215, 255, 63, .5);
}

.nav-divider {
  width: 1px;
  height: 20px;
  background: rgba(255, 255, 255, .15);
}

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

.menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1px solid var(--line);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
  transition: border-color .2s;
}

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

.menu-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--t1);
  border-radius: 2px;
  transition: transform .25s var(--ease), opacity .25s ease;
}

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

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

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

.mobile-nav {
  display: none;
  position: fixed;
  top: 68px;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(7, 11, 19, .97);
  backdrop-filter: blur(20px);
  z-index: 99;
  padding: 32px 24px calc(32px + env(safe-area-inset-bottom));
  overflow-y: auto;
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s var(--ease);
}

.mobile-nav.open {
  opacity: 1;
  pointer-events: auto;
}

.mobile-nav-group {
  margin-bottom: 28px;
}

.mobile-nav-group h4 {
  font-size: 13px;
  font-weight: 600;
  color: var(--t3);
  letter-spacing: .1em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.mobile-nav-group a {
  display: block;
  font-size: 18px;
  font-weight: 600;
  padding: 14px 4px;
  color: var(--t2);
  border-bottom: 1px solid rgba(255, 255, 255, .06);
  transition: color .2s ease, padding-left .2s ease;
}

.mobile-nav-group a:hover,
.mobile-nav-group a.active {
  color: var(--primary);
  padding-left: 8px;
}

.mobile-nav-cta {
  display: block;
  margin-top: 16px;
}

/* ===== Buttons ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--primary);
  color: #070b13;
  font-weight: 600;
  font-size: 15px;
  padding: 14px 28px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: transform .2s var(--ease), box-shadow .25s var(--ease), background .25s ease;
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-primary:hover {
  background: #e2ff6e;
  box-shadow: 0 0 24px rgba(215, 255, 63, .35), 0 0 48px rgba(47, 230, 212, .15);
}

.btn-primary:active {
  transform: scale(.98);
}

.btn-primary:focus-visible {
  outline: 2px solid var(--secondary);
  outline-offset: 2px;
}

.btn-primary .arr {
  transition: transform .25s var(--ease);
}

.btn-primary:hover .arr {
  transform: translateX(3px);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: transparent;
  color: var(--t1);
  font-weight: 500;
  font-size: 15px;
  padding: 14px 28px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255, 255, 255, .2);
  cursor: pointer;
  transition: border-color .25s ease, color .25s ease, transform .2s var(--ease);
  white-space: nowrap;
}

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

.btn-ghost:active {
  transform: scale(.98);
}

.btn-ghost:focus-visible {
  outline: 2px solid var(--secondary);
  outline-offset: 2px;
}

.btn-sm {
  padding: 9px 20px;
  font-size: 14px;
}

.btn-lg {
  padding: 16px 36px;
  font-size: 16px;
}

.btn-block {
  width: 100%;
}

/* ===== Hero ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding: 120px 0 80px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  z-index: 0;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(7, 11, 19, .92) 0%, rgba(7, 11, 19, .65) 55%, rgba(7, 11, 19, .3) 100%);
  z-index: 1;
}

.hero-overlay::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(215, 255, 63, .025) 1px, transparent 1px), linear-gradient(90deg, rgba(47, 230, 212, .02) 1px, transparent 1px);
  background-size: 48px 48px;
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 7fr 5fr;
  gap: 56px;
  align-items: center;
  width: 100%;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(215, 255, 63, .35);
  color: var(--primary);
  background: rgba(215, 255, 63, .06);
  border-radius: var(--radius-pill);
  padding: 6px 18px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .08em;
  margin-bottom: 24px;
}

.hero-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 8px var(--primary);
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 900;
  line-height: 1.22;
  letter-spacing: -.02em;
  margin-bottom: 20px;
}

.hero h1 .highlight {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  padding-bottom: 2px;
  background-size: 200% auto;
  animation: shimmer 6s ease infinite;
}

@keyframes shimmer {
  0%, 100% { background-position: 0% center; }
  50% { background-position: 100% center; }
}

.hero-sub {
  font-size: 17px;
  color: var(--t2);
  line-height: 1.85;
  max-width: 460px;
  margin-bottom: 32px;
}

.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.hero-trust {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.hero-trust span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--t3);
}

.hero-trust span::before {
  content: '✓';
  color: var(--secondary);
  font-size: 14px;
  font-weight: 700;
}

.hero-demo {
  position: relative;
}

.login-card {
  background: var(--bg-2);
  border: 1px solid rgba(215, 255, 63, .35);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: 0 0 32px rgba(215, 255, 63, .1), 0 0 64px rgba(47, 230, 212, .08), 0 24px 48px rgba(0, 0, 0, .4);
  animation: floatCard 6s ease-in-out infinite;
}

@keyframes floatCard {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.login-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.login-title {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -.01em;
}

.secure-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--secondary);
  border: 1px solid rgba(47, 230, 212, .3);
  background: rgba(47, 230, 212, .06);
  border-radius: var(--radius-pill);
  padding: 4px 12px;
}

.pulse-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--secondary);
  display: inline-block;
  animation: pulse 2s ease infinite;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(47, 230, 212, .5); }
  50% { box-shadow: 0 0 0 5px rgba(47, 230, 212, 0); }
}

.field {
  display: block;
  margin-bottom: 18px;
}

.field-label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--t2);
  margin-bottom: 6px;
}

.field input {
  width: 100%;
  height: 48px;
  background: rgba(7, 11, 19, .5);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 0 16px;
  font-size: 14px;
  color: var(--t1);
  transition: border-color .25s ease, box-shadow .25s ease;
}

.field input::placeholder {
  color: var(--t3);
}

.field input:focus {
  border-color: var(--secondary);
  box-shadow: 0 0 0 3px rgba(47, 230, 212, .15), 0 0 20px rgba(47, 230, 212, .1);
}

.login-card .btn-primary {
  margin-top: 4px;
}

.login-card-foot {
  display: flex;
  justify-content: space-between;
  margin-top: 18px;
  font-size: 13px;
}

.login-card-foot a {
  color: var(--t3);
  transition: color .2s ease;
}

.login-card-foot a:hover {
  color: var(--primary);
}

.hero-scroll {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
}

.hero-scroll a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--line);
  color: var(--t3);
  animation: bounceDown 2.2s ease infinite;
  transition: border-color .2s ease, color .2s ease;
}

.hero-scroll a:hover {
  border-color: var(--primary);
  color: var(--primary);
}

@keyframes bounceDown {
  0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
  40% { transform: translateY(6px); }
  60% { transform: translateY(3px); }
}

/* ===== Features ===== */
.features {
  background: var(--bg-1);
}

.features-grid {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 64px;
}

.features-sticky {
  position: sticky;
  top: 120px;
  height: fit-content;
  align-self: start;
}

.features-list {
  display: flex;
  flex-direction: column;
}

.feat-item {
  position: relative;
  padding: 32px 12px 32px 20px;
  border-bottom: 1px solid var(--line);
  transition: background .25s ease, padding-left .25s var(--ease);
}

.feat-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 24px;
  bottom: 24px;
  width: 2px;
  border-radius: 2px;
  background: var(--grad);
  opacity: 0;
  transition: opacity .25s ease;
}

.feat-item:hover {
  background: var(--bg-2);
  padding-left: 28px;
}

.feat-item:hover::before {
  opacity: 1;
}

.feat-num {
  font-family: 'DIN Alternate', 'Bahnschrift', monospace;
  font-size: 44px;
  font-weight: 700;
  line-height: 1;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  display: block;
  margin-bottom: 12px;
  font-variant-numeric: tabular-nums;
}

.feat-item h3 {
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -.01em;
  margin-bottom: 8px;
}

.feat-item p {
  font-size: 15px;
  color: var(--t2);
  line-height: 1.7;
  max-width: 480px;
  margin-bottom: 12px;
}

.feat-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap .2s ease;
}

.feat-link:hover {
  gap: 8px;
}

/* ===== Demo ===== */
.demo {
  background: var(--bg-0);
}

.demo-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 48px;
}

.demo-head .section-desc {
  margin-bottom: 4px;
}

.demo-window {
  border-radius: var(--radius-lg);
  background: var(--bg-1);
  border: 1px solid rgba(215, 255, 63, .12);
  box-shadow: 0 0 40px rgba(47, 230, 212, .06), 0 24px 48px rgba(0, 0, 0, .35);
  overflow: hidden;
  margin-bottom: 32px;
}

.browser-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  background: var(--bg-2);
  border-bottom: 1px solid var(--line);
}

.browser-bar .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}

.browser-bar .dot:nth-child(1) { background: #ff5d73; }
.browser-bar .dot:nth-child(2) { background: #ffbd2e; }
.browser-bar .dot:nth-child(3) { background: #27c93f; }

.address-bar {
  flex: 1;
  max-width: 320px;
  margin-left: 8px;
  height: 30px;
  background: rgba(7, 11, 19, .6);
  border-radius: var(--radius-pill);
  display: flex;
  align-items: center;
  padding: 0 14px;
  font-size: 12px;
  color: var(--t3);
  font-family: 'DIN Alternate', monospace;
  letter-spacing: .02em;
}

.demo-window img {
  width: 100%;
  height: auto;
  display: block;
}

.demo-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.step {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px;
  background: var(--bg-1);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  transition: border-color .25s ease, box-shadow .25s ease, transform .25s var(--ease);
}

.step:hover {
  border-color: rgba(215, 255, 63, .3);
  box-shadow: 0 0 20px rgba(215, 255, 63, .08);
  transform: translateY(-3px);
}

.step-num {
  width: 38px;
  height: 38px;
  flex-shrink: 0;
  border-radius: 10px;
  background: rgba(215, 255, 63, .1);
  border: 1px solid rgba(215, 255, 63, .25);
  color: var(--primary);
  font-family: 'DIN Alternate', monospace;
  font-weight: 700;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.step strong {
  display: block;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 4px;
}

.step p {
  font-size: 13px;
  color: var(--t3);
  line-height: 1.5;
}

/* ===== Proof ===== */
.proof {
  background: var(--bg-1);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.proof-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--bg-2);
  margin-bottom: 48px;
  overflow: hidden;
}

.stat {
  padding: 40px 24px;
  text-align: center;
  position: relative;
}

.stat + .stat {
  border-left: 1px solid var(--line);
}

.stat-num {
  font-family: 'DIN Alternate', 'Bahnschrift', monospace;
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 700;
  color: var(--primary);
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
  display: block;
  margin-bottom: 8px;
  text-shadow: 0 0 20px rgba(215, 255, 63, .3);
}

.stat-label {
  font-size: 14px;
  color: var(--t2);
}

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

.quote-card {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-left: 3px solid var(--secondary);
  border-radius: var(--radius-md);
  padding: 24px;
  position: relative;
  transition: border-color .25s ease, box-shadow .25s ease, transform .25s var(--ease);
}

.quote-card:hover {
  border-color: rgba(47, 230, 212, .3);
  box-shadow: 0 0 24px rgba(47, 230, 212, .08);
  transform: translateY(-4px);
}

.quote-mark {
  font-family: Georgia, serif;
  font-size: 48px;
  line-height: 1;
  color: var(--primary);
  opacity: .6;
  display: block;
  height: 24px;
  margin-bottom: 12px;
}

.quote-text {
  font-size: 15px;
  color: var(--t2);
  line-height: 1.75;
  margin-bottom: 16px;
}

.quote-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.quote-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--grad);
  color: #070b13;
  font-size: 13px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.quote-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--t1);
}

.quote-role {
  font-size: 12px;
  color: var(--t3);
}

.proof-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

.proof-badge {
  font-size: 13px;
  color: var(--t3);
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  padding: 8px 18px;
  background: var(--bg-2);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: border-color .2s ease, color .2s ease;
}

.proof-badge:hover {
  border-color: rgba(215, 255, 63, .3);
  color: var(--t2);
}

.proof-badge::before {
  content: '◆';
  font-size: 10px;
  color: var(--secondary);
}

/* ===== Pricing ===== */
.pricing {
  background: var(--bg-0);
}

.pricing-head {
  text-align: left;
  margin-bottom: 48px;
}

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

.pricing-card {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: border-color .3s ease, box-shadow .3s ease, transform .3s var(--ease);
}

.pricing-card:hover {
  border-color: rgba(215, 255, 63, .25);
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, .3);
}

.pricing-card.recommended {
  border-color: rgba(215, 255, 63, .5);
  box-shadow: 0 0 40px rgba(215, 255, 63, .1), 0 0 80px rgba(47, 230, 212, .08), 0 20px 40px rgba(0, 0, 0, .3);
  transform: scale(1.03);
}

.pricing-card.recommended:hover {
  transform: scale(1.03) translateY(-4px);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary);
  color: #070b13;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 16px;
  border-radius: var(--radius-pill);
  letter-spacing: .04em;
  box-shadow: 0 0 16px rgba(215, 255, 63, .3);
}

.pricing-plan {
  font-size: 16px;
  font-weight: 600;
  color: var(--t2);
  margin-bottom: 16px;
}

.pricing-price {
  font-family: 'DIN Alternate', 'Bahnschrift', monospace;
  font-size: clamp(2.2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
  margin-bottom: 4px;
  color: var(--t1);
}

.pricing-price small {
  font-size: 15px;
  font-weight: 500;
  color: var(--t3);
  font-family: 'Noto Sans SC', sans-serif;
}

.pricing-cycle {
  font-size: 13px;
  color: var(--t3);
  margin-bottom: 24px;
}

.pricing-list {
  margin-bottom: 32px;
  flex: 1;
}

.pricing-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--t2);
  padding: 6px 0;
}

.pricing-list li::before {
  content: '✓';
  color: var(--primary);
  font-weight: 700;
  font-size: 15px;
  flex-shrink: 0;
}

.pricing-note {
  font-size: 12px;
  color: var(--t3);
  margin-top: 20px;
  text-align: center;
}

/* ===== FAQ ===== */
.faq {
  background: var(--bg-1);
}

.faq-head {
  text-align: center;
  margin-bottom: 48px;
}

.faq-head h2 {
  text-align: center;
}

.faq-list {
  max-width: 720px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  overflow: hidden;
  transition: border-color .3s ease, background .3s ease, box-shadow .3s ease;
}

.faq-item.open {
  border-color: rgba(215, 255, 63, .35);
  background: var(--bg-3);
  box-shadow: 0 0 20px rgba(215, 255, 63, .05);
}

.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  line-height: 1.5;
  color: var(--t1);
  transition: color .25s ease;
  user-select: none;
}

.faq-q:hover {
  color: var(--primary);
}

.faq-icon {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  border-radius: 50%;
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 400;
  color: var(--t2);
  transition: transform .3s var(--ease), border-color .3s ease, color .3s ease;
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
  border-color: var(--primary);
  color: var(--primary);
}

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s var(--ease);
}

.faq-a-inner {
  padding: 0 24px 20px;
  font-size: 14px;
  color: var(--t2);
  line-height: 1.85;
}

/* ===== News ===== */
.news {
  background: var(--bg-0);
}

.news-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 40px;
}

.news-head .section-desc {
  margin-bottom: 4px;
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 500;
  color: var(--primary);
  padding: 10px 0;
  transition: gap .25s var(--ease);
}

.link-arrow:hover {
  gap: 10px;
}

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

.news-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform .3s var(--ease), border-color .3s ease, box-shadow .3s ease;
}

.news-card:hover {
  transform: translateY(-5px);
  border-color: rgba(215, 255, 63, .35);
  box-shadow: 0 0 30px rgba(215, 255, 63, .07), 0 12px 30px rgba(0, 0, 0, .3);
}

.news-cover {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--bg-1);
}

.news-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s var(--ease);
}

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

.news-cover.loading {
  background: linear-gradient(90deg, var(--bg-2) 0%, var(--bg-3) 50%, var(--bg-2) 100%);
  background-size: 200% 100%;
  animation: skeleton 1.5s infinite;
}

@keyframes skeleton {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.cover-friendly {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 44px;
  font-weight: 900;
  color: rgba(215, 255, 63, .2);
  background: linear-gradient(135deg, var(--bg-1), var(--bg-3));
}

.news-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 2;
  background: rgba(7, 11, 19, .8);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(215, 255, 63, .3);
  color: var(--primary);
  font-size: 12px;
  font-weight: 500;
  padding: 4px 12px;
  border-radius: 6px;
  letter-spacing: .03em;
}

.news-body {
  padding: 20px 22px;
  flex: 1;
}

.news-body h3 {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color .2s ease;
}

.news-card:hover .news-body h3 {
  color: var(--primary);
}

.news-body p {
  font-size: 14px;
  color: var(--t2);
  line-height: 1.65;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 22px;
  border-top: 1px solid var(--line);
}

.news-foot time {
  font-size: 13px;
  color: var(--t3);
  font-family: 'DIN Alternate', monospace;
  font-variant-numeric: tabular-nums;
}

.read-more {
  font-size: 13px;
  color: var(--t2);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: color .2s ease, gap .2s ease;
}

.news-card:hover .read-more {
  color: var(--primary);
  gap: 8px;
}

.news-empty {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 64px 24px;
  color: var(--t3);
  font-size: 15px;
  background: var(--bg-1);
  border: 1px dashed var(--line);
  border-radius: var(--radius-lg);
}

.news-empty::before {
  content: '📡';
  font-size: 36px;
  margin-bottom: 12px;
}

/* ===== CTA ===== */
.cta-final {
  position: relative;
  padding: clamp(80px, 10vw, 120px) 0;
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.cta-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  z-index: 0;
}

.cta-overlay {
  position: absolute;
  inset: 0;
  background: rgba(7, 11, 19, .85);
  z-index: 1;
}

.cta-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 620px;
}

.cta-inner h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 900;
  letter-spacing: -.02em;
  margin-bottom: 14px;
}

.cta-inner p {
  font-size: 16px;
  color: var(--t2);
  margin-bottom: 32px;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--bg-1);
  border-top: 1px solid transparent;
  background-image: linear-gradient(var(--bg-1), var(--bg-1)), linear-gradient(90deg, rgba(215, 255, 63, .5), rgba(47, 230, 212, .5));
  background-origin: border-box;
  background-clip: padding-box, border-box;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.4fr;
  gap: 48px;
  padding-top: 64px;
  padding-bottom: 48px;
}

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

.footer-brand p {
  font-size: 14px;
  color: var(--t3);
  line-height: 1.7;
  max-width: 280px;
  margin-bottom: 16px;
}

.footer-icp {
  font-size: 12px;
  color: var(--t3);
}

.footer-col h4 {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .05em;
  margin-bottom: 18px;
  color: var(--t1);
}

.footer-col a {
  display: block;
  font-size: 14px;
  color: var(--t2);
  padding: 6px 0;
  transition: color .2s ease, padding-left .2s ease;
}

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

.footer-col p {
  font-size: 14px;
  color: var(--t2);
  padding: 4px 0;
}

.footer-bottom {
  border-top: 1px solid var(--line);
  padding: 20px 0 24px;
}

.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--t3);
}

/* ===== Floating CTA ===== */
.float-cta {
  position: fixed;
  z-index: 50;
  transition: transform .5s var(--ease), opacity .5s ease;
}

.float-cta.hidden {
  transform: translateX(120%);
  opacity: 0;
}

.float-cta-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(7, 11, 19, .9);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(215, 255, 63, .5);
  color: var(--primary);
  font-weight: 600;
  font-size: 15px;
  padding: 14px 26px;
  border-radius: var(--radius-pill);
  box-shadow: 0 0 24px rgba(215, 255, 63, .15), 0 8px 24px rgba(0, 0, 0, .4);
  transition: box-shadow .3s ease, transform .2s var(--ease), background .3s ease;
}

.float-cta-primary:hover {
  box-shadow: 0 0 40px rgba(215, 255, 63, .25), 0 8px 32px rgba(0, 0, 0, .4);
  background: rgba(18, 28, 46, .95);
  transform: translateY(-2px);
}

.float-cta-primary:active {
  transform: scale(.97);
}

.float-cta-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: rgba(7, 11, 19, .8);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, .12);
  color: var(--t2);
  font-weight: 500;
  font-size: 15px;
  padding: 14px 24px;
  border-radius: var(--radius-pill);
  transition: border-color .25s ease, color .25s ease;
}

.float-cta-secondary:hover {
  border-color: var(--primary);
  color: var(--primary);
}

@media (min-width: 768px) {
  .float-cta {
    bottom: 28px;
    right: 28px;
  }

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

@media (max-width: 767px) {
  .float-cta {
    left: 0;
    right: 0;
    bottom: 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    padding: 12px 16px calc(12px + env(safe-area-inset-bottom));
    background: rgba(7, 11, 19, .9);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-top: 1px solid var(--line);
  }

  .float-cta-primary,
  .float-cta-secondary {
    border-radius: 12px;
    justify-content: center;
  }

  .float-cta-primary {
    padding: 14px 20px;
  }
}

/* ===== Fade Up Animation ===== */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  filter: blur(4px);
  transition: opacity .6s var(--ease), transform .6s var(--ease), filter .6s var(--ease);
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-demo {
    max-width: 460px;
  }

  .features-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .features-sticky {
    position: static;
  }

  .proof-quotes {
    grid-template-columns: 1fr;
  }

  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin: 0 auto;
  }

  .pricing-card.recommended {
    transform: scale(1.02);
  }

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

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

@media (max-width: 767px) {
  .main-nav {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

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

  .mobile-nav {
    display: block;
  }

  .hero {
    padding: 100px 0 60px;
  }

  .hero h1 {
    font-size: clamp(1.9rem, 6vw, 2.5rem);
  }

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

  .hero-cta {
    flex-direction: column;
  }

  .hero-cta .btn-primary,
  .hero-cta .btn-ghost {
    width: 100%;
  }

  .hero-scroll {
    display: none;
  }

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

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

  .stat:nth-child(3) {
    border-left: none;
    border-top: 1px solid var(--line);
  }

  .stat:nth-child(4) {
    border-top: 1px solid var(--line);
  }

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

  .news-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .demo-head {
    flex-direction: column;
    align-items: flex-start;
  }

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

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

  .cta-inner h2 {
    font-size: 1.6rem;
  }
}

@media (max-width: 420px) {
  .proof-stats {
    grid-template-columns: 1fr 1fr;
  }

  .stat {
    padding: 24px 16px;
  }

  .stat-num {
    font-size: 2rem;
  }

  .login-card {
    padding: 22px;
  }
}

/* ===== Custom Scrollbar ===== */
::-webkit-scrollbar {
  width: 8px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--bg-3);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--t3);
}

::selection {
  background: rgba(215, 255, 63, .3);
  color: var(--t1);
}

/* roulang page: category1 */
:root {
            --bg-0: #070b13;
            --bg-1: #0c1320;
            --bg-2: #121c2e;
            --bg-3: #18233a;
            --primary: #d7ff3f;
            --secondary: #2fe6d4;
            --t1: #eef2f8;
            --t2: #9aaabd;
            --t3: #5d6b82;
            --danger: #ff5d73;
            --border: rgba(255, 255, 255, .08);
            --radius-lg: 16px;
            --radius-md: 10px;
            --radius-pill: 999px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, .25);
            --shadow-neon: 0 0 24px rgba(215, 255, 63, .18), 0 0 48px rgba(47, 230, 212, .12);
            --ease: cubic-bezier(.22, .61, .36, 1);
            --dur: .3s;
        }

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

        html {
            scroll-behavior: smooth;
        }

        @media (prefers-reduced-motion: reduce) {
            html {
                scroll-behavior: auto;
            }
            *,
            *::before,
            *::after {
                animation-duration: .01ms !important;
                transition-duration: .01ms !important;
            }
        }

        body {
            background: var(--bg-0);
            color: var(--t1);
            font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        input,
        textarea {
            font-family: inherit;
        }

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

        ::-webkit-scrollbar {
            width: 8px;
            background: var(--bg-0);
        }

        ::-webkit-scrollbar-thumb {
            background: var(--bg-3);
            border-radius: 4px;
        }

        ::-webkit-scrollbar-thumb:hover {
            background: var(--t3);
        }

        .text-gradient {
            background: linear-gradient(135deg, #d7ff3f, #2fe6d4);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            color: transparent;
        }

        @keyframes shimmer {
            0%,
            100% {
                filter: brightness(1);
            }
            50% {
                filter: brightness(1.15);
            }
        }

        .shimmer {
            animation: shimmer 3.5s ease-in-out infinite;
        }

        /* ===== Header Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            height: 68px;
            background: rgba(7, 11, 19, .85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(215, 255, 63, .4);
            transition: box-shadow .3s var(--ease);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 700;
            font-size: 18px;
            letter-spacing: -0.02em;
        }

        .logo-icon {
            width: 34px;
            height: 34px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, rgba(215, 255, 63, .15), rgba(47, 230, 212, .1));
            border-radius: 8px;
            border: 1px solid rgba(215, 255, 63, .3);
        }

        .logo-icon svg {
            width: 20px;
            height: 20px;
            fill: var(--primary);
            filter: drop-shadow(0 0 6px rgba(215, 255, 63, .5));
        }

        .logo-text {
            color: var(--t1);
        }

        .logo-badge {
            font-size: 10px;
            padding: 2px 8px;
            border-radius: 4px;
            background: rgba(215, 255, 63, .15);
            color: var(--primary);
            border: 1px solid rgba(215, 255, 63, .3);
            letter-spacing: .08em;
            font-weight: 500;
        }

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

        .nav-link {
            font-size: 14px;
            font-weight: 500;
            letter-spacing: .05em;
            color: var(--t2);
            padding: 8px 14px;
            border-radius: 6px;
            position: relative;
            transition: color .25s var(--ease);
            white-space: nowrap;
        }

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

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

        .nav-link.active::after {
            content: '';
            position: absolute;
            left: 12px;
            right: 12px;
            bottom: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            border-radius: 2px;
            box-shadow: 0 0 10px rgba(215, 255, 63, .4);
        }

        .nav-divider {
            width: 1px;
            height: 20px;
            background: rgba(255, 255, 255, .12);
            margin: 0 6px;
        }

        .nav-cta {
            background: var(--primary);
            color: #070b13;
            font-size: 14px;
            font-weight: 600;
            padding: 9px 22px;
            border-radius: var(--radius-pill);
            transition: all .25s var(--ease);
            letter-spacing: .04em;
            white-space: nowrap;
        }

        .nav-cta:hover {
            box-shadow: 0 0 20px rgba(215, 255, 63, .35);
            transform: translateY(-1px);
        }

        .nav-cta:active {
            transform: scale(.98);
        }

        .menu-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            border: 1px solid var(--border);
            align-items: center;
            justify-content: center;
            color: var(--t1);
        }

        .mobile-menu {
            position: fixed;
            top: 68px;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(7, 11, 19, .97);
            backdrop-filter: blur(20px);
            z-index: 99;
            padding: 32px 24px;
            display: none;
            overflow-y: auto;
        }

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

        .mobile-menu-group {
            margin-bottom: 28px;
        }

        .mobile-menu-group h4 {
            font-size: 13px;
            color: var(--t3);
            letter-spacing: .08em;
            margin-bottom: 12px;
            font-weight: 500;
        }

        .mobile-menu .nav-link {
            display: block;
            padding: 14px 12px;
            font-size: 16px;
            border-radius: 10px;
            border: 1px solid transparent;
            margin-bottom: 4px;
        }

        .mobile-menu .nav-link.active {
            border-color: rgba(215, 255, 63, .2);
            background: rgba(215, 255, 63, .05);
        }

        .mobile-menu .nav-cta {
            display: block;
            text-align: center;
            padding: 14px;
            margin-top: 20px;
        }

        .mobile-nav-divider {
            height: 1px;
            background: var(--border);
            margin: 24px 0;
        }

        /* ===== Hero ===== */
        .cat-hero {
            position: relative;
            padding: 160px 0 80px;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            border-bottom: 1px solid rgba(47, 230, 212, .15);
        }

        .cat-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(7, 11, 19, .92) 30%, rgba(7, 11, 19, .7) 70%, rgba(7, 11, 19, .4));
        }

        .cat-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 70% 20%, rgba(215, 255, 63, .05) 0%, transparent 60%);
            pointer-events: none;
        }

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

        .cat-hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: 1px solid rgba(215, 255, 63, .4);
            border-radius: var(--radius-pill);
            padding: 6px 16px;
            font-size: 13px;
            color: var(--primary);
            background: rgba(215, 255, 63, .05);
            margin-bottom: 20px;
            letter-spacing: .04em;
            font-weight: 500;
        }

        .cat-hero h1 {
            font-size: clamp(2.2rem, 5vw, 3.5rem);
            font-weight: 900;
            letter-spacing: -0.02em;
            line-height: 1.2;
            margin-bottom: 18px;
        }

        .cat-hero p {
            font-size: clamp(1rem, 2vw, 1.15rem);
            color: var(--t2);
            max-width: 640px;
            line-height: 1.8;
            margin-bottom: 24px;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--t3);
            margin-top: 20px;
        }

        .breadcrumb a {
            color: var(--t3);
            transition: color .2s;
        }

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

        .breadcrumb .current {
            color: var(--t1);
        }

        .breadcrumb .sep {
            color: var(--t3);
            font-size: 12px;
        }

        /* ===== Content Sections ===== */
        .cat-section {
            padding: clamp(64px, 10vw, 100px) 0;
            position: relative;
        }

        .cat-section.bg-alt {
            background: var(--bg-1);
        }

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

        .cat-section-header .tag-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--secondary);
            letter-spacing: .1em;
            font-weight: 500;
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .cat-section-header .tag-label::before {
            content: '';
            width: 20px;
            height: 2px;
            background: var(--secondary);
            border-radius: 2px;
        }

        .cat-section-header h2 {
            font-size: clamp(1.5rem, 3vw, 2.25rem);
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.3;
            margin-bottom: 12px;
        }

        .cat-section-header p {
            color: var(--t2);
            font-size: 15px;
            max-width: 560px;
        }

        .split-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
            margin-bottom: 80px;
        }

        .split-block.reverse {
            direction: rtl;
        }

        .split-block.reverse>* {
            direction: ltr;
        }

        .split-text h3 {
            font-size: 1.35rem;
            font-weight: 700;
            margin-bottom: 14px;
            line-height: 1.4;
        }

        .split-text p {
            color: var(--t2);
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 14px;
        }

        .split-text ul {
            list-style: none;
            padding: 0;
            margin: 16px 0;
        }

        .split-text ul li {
            position: relative;
            padding-left: 24px;
            font-size: 14px;
            color: var(--t2);
            margin-bottom: 8px;
            line-height: 1.6;
        }

        .split-text ul li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 9px;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--primary);
            box-shadow: 0 0 8px rgba(215, 255, 63, .5);
        }

        .split-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-card);
            transition: border-color .3s var(--ease), box-shadow .3s var(--ease);
        }

        .split-img:hover {
            border-color: rgba(215, 255, 63, .3);
            box-shadow: var(--shadow-neon);
        }

        .split-img img {
            width: 100%;
            height: 280px;
            object-fit: cover;
        }

        .img-caption {
            padding: 12px 16px;
            font-size: 12px;
            color: var(--t3);
            background: var(--bg-1);
            text-align: center;
            border-top: 1px solid var(--border);
        }

        /* ===== CTA Bar ===== */
        .cta-bar {
            position: relative;
            padding: 48px 0;
            background: var(--bg-2);
            border-top: 1px solid rgba(215, 255, 63, .15);
            border-bottom: 1px solid rgba(47, 230, 212, .15);
            overflow: hidden;
        }

        .cta-bar::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 80% 50%, rgba(215, 255, 63, .06), transparent 60%);
        }

        .cta-bar .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            position: relative;
            z-index: 1;
            flex-wrap: wrap;
        }

        .cta-bar h3 {
            font-size: clamp(1.2rem, 2.5vw, 1.6rem);
            font-weight: 700;
            margin-bottom: 6px;
        }

        .cta-bar p {
            color: var(--t2);
            font-size: 14px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            padding: 13px 30px;
            border-radius: var(--radius-pill);
            transition: all .25s var(--ease);
            letter-spacing: .02em;
        }

        .btn-primary {
            background: var(--primary);
            color: #070b13;
            border: 1px solid transparent;
        }

        .btn-primary:hover {
            box-shadow: 0 0 24px rgba(215, 255, 63, .3);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            transform: scale(.97);
        }

        .btn-primary:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 3px;
        }

        .btn-primary .arrow {
            transition: transform .25s var(--ease);
        }

        .btn-primary:hover .arrow {
            transform: translateX(3px);
        }

        .btn-ghost {
            background: transparent;
            color: var(--t1);
            border: 1px solid rgba(255, 255, 255, .2);
        }

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

        /* ===== FAQ ===== */
        .faq-section {
            padding: clamp(64px, 10vw, 100px) 0;
        }

        .faq-container {
            max-width: 720px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg-2);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            margin-bottom: 14px;
            overflow: hidden;
            transition: border-color .3s var(--ease), background .3s var(--ease);
        }

        .faq-item.open {
            border-color: rgba(215, 255, 63, .3);
            background: var(--bg-3);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--t1);
            transition: color .25s;
        }

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

        .faq-icon {
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            border: 1px solid var(--border);
            flex-shrink: 0;
            transition: transform .3s var(--ease), border-color .3s, color .3s;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            border-color: var(--primary);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s var(--ease);
        }

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

        .faq-answer p {
            padding: 0 24px 20px;
            font-size: 14px;
            color: var(--t2);
            line-height: 1.8;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-1);
            border-top: 1px solid rgba(215, 255, 63, .2);
            position: relative;
        }

        .site-footer::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--primary), var(--secondary), transparent);
            opacity: .5;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 48px;
            padding-top: 64px;
            padding-bottom: 48px;
        }

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

        .footer-brand p {
            color: var(--t3);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 16px;
            max-width: 260px;
        }

        .footer-icp {
            font-size: 12px;
            color: var(--t3);
            border: 1px solid var(--border);
            display: inline-block;
            padding: 4px 12px;
            border-radius: 4px;
            background: rgba(255, 255, 255, .02);
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--t1);
            margin-bottom: 18px;
            letter-spacing: .03em;
        }

        .footer-col a {
            display: block;
            font-size: 14px;
            color: var(--t3);
            margin-bottom: 10px;
            transition: color .2s;
            line-height: 1.5;
        }

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

        .footer-col p {
            font-size: 14px;
            color: var(--t3);
            margin-bottom: 10px;
            line-height: 1.5;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .04);
            padding: 20px 0;
        }

        .footer-bottom-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 12px;
            color: var(--t3);
            flex-wrap: wrap;
            gap: 8px;
        }

        /* ===== Floating CTA ===== */
        .floating-cta {
            position: fixed;
            bottom: 24px;
            right: 24px;
            z-index: 50;
            display: flex;
            align-items: center;
            gap: 10px;
            background: var(--bg-2);
            border: 1px solid rgba(215, 255, 63, .4);
            border-radius: var(--radius-pill);
            padding: 12px 24px;
            color: var(--primary);
            font-size: 14px;
            font-weight: 600;
            box-shadow: var(--shadow-neon);
            transition: all .3s var(--ease);
            letter-spacing: .03em;
        }

        .floating-cta:hover {
            box-shadow: 0 0 32px rgba(215, 255, 63, .3), 0 0 60px rgba(47, 230, 212, .15);
            transform: translateY(-2px);
        }

        .floating-cta .dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--primary);
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(215, 255, 63, .5);
            }
            50% {
                box-shadow: 0 0 0 6px rgba(215, 255, 63, 0);
            }
        }

        .floating-mobile {
            display: none;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .main-nav .nav-link {
                padding: 8px 10px;
                font-size: 13px;
            }
            .nav-divider {
                margin: 0 2px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr 1fr;
                gap: 36px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 768px) {
            .site-header {
                height: 60px;
            }
            .main-nav {
                display: none;
            }
            .menu-toggle {
                display: flex;
            }
            .cat-hero {
                padding: 130px 0 60px;
            }
            .split-block {
                grid-template-columns: 1fr;
                gap: 28px;
                margin-bottom: 56px;
            }
            .split-block.reverse {
                direction: ltr;
            }
            .split-img img {
                height: 220px;
            }
            .cta-bar .container {
                flex-direction: column;
                text-align: center;
            }
            .floating-mobile {
                display: flex;
                position: fixed;
                bottom: 0;
                left: 0;
                right: 0;
                z-index: 50;
                background: rgba(7, 11, 19, .92);
                backdrop-filter: blur(16px);
                border-top: 1px solid var(--border);
                padding: 12px 16px calc(12px + env(safe-area-inset-bottom));
                gap: 10px;
            }
            .floating-mobile .btn {
                flex: 1;
                justify-content: center;
                padding: 12px 16px;
                font-size: 14px;
            }
            .floating-mobile .btn-primary {
                background: var(--primary);
                color: #070b13;
                border: none;
            }
            .floating-mobile .btn-ghost {
                background: transparent;
                border: 1px solid rgba(255, 255, 255, .25);
                color: var(--t1);
            }
            .floating-cta {
                display: none;
            }
            body {
                padding-bottom: 70px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
                padding-top: 48px;
                padding-bottom: 32px;
            }
            .footer-brand p {
                max-width: none;
            }
            .footer-bottom-inner {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 18px;
                padding-right: 18px;
            }
            .cat-hero h1 {
                font-size: 2rem;
            }
            .split-img img {
                height: 190px;
            }
            .faq-question {
                padding: 16px 18px;
                font-size: 14px;
            }
            .faq-answer p {
                padding: 0 18px 16px;
                font-size: 13px;
            }
            .cta-bar h3 {
                font-size: 1.1rem;
            }
        }

        /* ===== Selection ===== */
        ::selection {
            background: rgba(215, 255, 63, .25);
            color: var(--t1);
        }

        /* ===== Focus visible for nav links ===== */
        .nav-link:focus-visible,
        .footer-col a:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 2px;
            border-radius: 4px;
        }

        /* ===== Hover underline effect for links ===== */
        .hover-underline {
            position: relative;
        }

        .hover-underline::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 100%;
            height: 1px;
            background: var(--primary);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform .3s var(--ease);
        }

        .hover-underline:hover::after {
            transform: scaleX(1);
        }

/* roulang page: article */
:root {
  --bg-0: #070b13;
  --bg-1: #0c1320;
  --bg-2: #121c2e;
  --bg-3: #18233a;
  --primary: #d7ff3f;
  --secondary: #2fe6d4;
  --text-1: #eef2f8;
  --text-2: #9aaabd;
  --text-3: #5d6b82;
  --line: rgba(255, 255, 255, .08);
  --danger: #ff5d73;
  --radius-lg: 16px;
  --radius-sm: 10px;
  --radius-pill: 999px;
  --shadow: 0 4px 20px rgba(0, 0, 0, .25);
  --neon: 0 0 24px rgba(215, 255, 63, .18), 0 0 48px rgba(47, 230, 212, .12);
  --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", -apple-system, sans-serif;
  --font-num: "DIN Alternate", "Bahnschrift", "Segoe UI", sans-serif;
  --ease: cubic-bezier(.22, .61, .36, 1);
  --duration: .3s;
}
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  background: var(--bg-0);
  color: var(--text-1);
  font-family: var(--font-sans);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  font-size: 16px;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
  transition: color .2s var(--ease);
}
button,
input {
  font-family: var(--font-sans);
}
ul,
ol {
  list-style: none;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
h1,
h2,
h3,
h4 {
  letter-spacing: -.02em;
  line-height: 1.3;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-pill);
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all .25s var(--ease);
  font-size: 14px;
  padding: 12px 26px;
  white-space: nowrap;
  gap: 8px;
}
.btn i {
  font-size: 13px;
}
.btn:active {
  transform: scale(.98);
}
.btn-primary {
  background: var(--primary);
  color: #070b13;
  box-shadow: 0 0 20px rgba(215, 255, 63, .18);
}
.btn-primary:hover {
  box-shadow: 0 0 32px rgba(215, 255, 63, .32);
  background: #e1ff66;
}
.btn-primary:focus-visible {
  outline: 2px solid var(--secondary);
  outline-offset: 2px;
}
.btn-ghost {
  background: transparent;
  color: var(--text-1);
  border-color: rgba(255, 255, 255, .2);
}
.btn-ghost:hover {
  border-color: var(--primary);
  color: var(--primary);
}
.btn-ghost:focus-visible {
  outline: 2px solid var(--secondary);
  outline-offset: 2px;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-icon {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: rgba(215, 255, 63, .12);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 20px rgba(215, 255, 63, .22);
}
.logo-icon svg {
  width: 20px;
  height: 20px;
  fill: var(--primary);
}
.logo-text {
  font-weight: 900;
  font-size: 19px;
  letter-spacing: -.02em;
  color: var(--text-1);
}
.logo-badge {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 6px;
  background: var(--primary);
  color: #070b13;
  font-weight: 700;
  letter-spacing: .04em;
}
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: 68px;
  background: rgba(7, 11, 19, .85);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(255, 255, 255, .06);
}
.site-header::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 1px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  opacity: .5;
  pointer-events: none;
}
.header-inner {
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-link {
  position: relative;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: .05em;
  color: var(--text-2);
  padding: 8px 14px;
  border-radius: 8px;
  transition: color .25s var(--ease);
}
.nav-link:hover {
  color: var(--primary);
}
.nav-link.active {
  color: var(--primary);
}
.nav-link.active::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 0;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  box-shadow: 0 0 12px rgba(215, 255, 63, .5);
}
.nav-divider {
  width: 1px;
  height: 20px;
  background: rgba(255, 255, 255, .14);
  margin: 0 8px;
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.header-login-btn {
  font-size: 14px;
  padding: 10px 24px;
}
.mobile-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 10px;
  cursor: pointer;
  padding: 10px;
  align-items: center;
}
.mobile-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  border-radius: 2px;
  background: var(--text-1);
  transition: all .3s var(--ease);
}
.mobile-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.mobile-toggle.active span:nth-child(2) {
  opacity: 0;
}
.mobile-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}
.article-hero {
  position: relative;
  padding: 148px 0 60px;
  background: linear-gradient(135deg, rgba(7, 11, 19, .94) 35%, rgba(7, 11, 19, .78) 75%, rgba(7, 11, 19, .62)), url('/assets/images/backpic/back-2.png') center / cover no-repeat;
  border-bottom: 1px solid var(--line);
}
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  font-size: 14px;
  color: var(--text-3);
  gap: 6px;
  margin-bottom: 32px;
}
.breadcrumb a {
  color: var(--text-3);
  transition: color .2s var(--ease);
}
.breadcrumb a:hover {
  color: var(--primary);
}
.breadcrumb .current {
  color: var(--text-1);
  max-width: 360px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.breadcrumb .sep {
  opacity: .5;
  color: var(--text-3);
}
.article-meta-box {
  max-width: 780px;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 6px;
  background: rgba(215, 255, 63, .12);
  border: 1px solid rgba(215, 255, 63, .35);
  color: var(--primary);
  margin-bottom: 18px;
  letter-spacing: .03em;
}
.article-title {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 900;
  color: var(--text-1);
  letter-spacing: -.02em;
  line-height: 1.3;
  margin-bottom: 20px;
}
.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 13px;
  color: var(--text-3);
}
.meta-row span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.meta-row i {
  color: var(--secondary);
  font-size: 13px;
}
.article-main {
  background: var(--bg-0);
  padding: 64px 0 48px;
}
.article-container {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 24px;
}
.article-content {
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-2);
  word-break: break-word;
}
.article-content p {
  margin: 0 0 16px;
}
.article-content h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-1);
  margin: 42px 0 16px;
  padding-left: 16px;
  border-left: 3px solid var(--primary);
  box-shadow: -3px 0 12px rgba(215, 255, 63, .12);
}
.article-content h3 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-1);
  margin: 32px 0 12px;
}
.article-content h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-1);
  margin: 24px 0 10px;
}
.article-content ul {
  margin: 16px 0 20px;
  padding: 0;
}
.article-content ul li {
  position: relative;
  padding-left: 24px;
  margin-bottom: 10px;
  color: var(--text-2);
}
.article-content ul li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: .62em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 8px rgba(215, 255, 63, .5);
}
.article-content ol {
  margin: 16px 0 20px;
  padding-left: 24px;
  list-style: decimal;
}
.article-content ol li {
  margin-bottom: 10px;
  padding-left: 6px;
  color: var(--text-2);
}
.article-content blockquote {
  margin: 24px 0;
  padding: 20px 24px;
  background: var(--bg-2);
  border-left: 3px solid var(--secondary);
  border-radius: 0 12px 12px 0;
  color: var(--text-2);
}
.article-content blockquote p {
  margin-bottom: 0;
}
.article-content a {
  color: var(--secondary);
  text-decoration: underline;
  text-underline-offset: 4px;
}
.article-content a:hover {
  color: var(--primary);
}
.article-content img {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  margin: 24px auto;
}
.article-content figure {
  margin: 28px 0;
}
.article-content figure img {
  margin-bottom: 10px;
}
.article-content figcaption {
  font-size: 13px;
  color: var(--text-3);
  text-align: center;
}
.article-content hr {
  border: none;
  height: 1px;
  background: var(--line);
  margin: 32px 0;
}
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 14px;
}
.article-content table th,
.article-content table td {
  border: 1px solid var(--line);
  padding: 10px 12px;
  text-align: left;
}
.article-content table th {
  background: var(--bg-1);
  color: var(--text-1);
  font-weight: 600;
}
.article-empty {
  max-width: 720px;
  margin: 0 auto;
  padding: 80px 24px;
  text-align: center;
}
.article-empty i {
  font-size: 44px;
  color: var(--text-3);
  margin-bottom: 20px;
  display: block;
}
.article-empty h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-1);
  margin-bottom: 12px;
}
.article-empty p {
  color: var(--text-2);
  margin-bottom: 28px;
}
.related-section {
  background: var(--bg-0);
  padding: 0 0 80px;
}
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}
.section-label {
  font-size: 13px;
  color: var(--secondary);
  letter-spacing: .08em;
  font-weight: 600;
  margin-bottom: 6px;
}
.section-head h2 {
  font-size: clamp(1.4rem, 2.5vw, 1.9rem);
  font-weight: 900;
  color: var(--text-1);
}
.view-all {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-2);
  transition: color .2s var(--ease);
  padding: 8px 0;
}
.view-all:hover {
  color: var(--primary);
}
.view-all i {
  transition: transform .2s var(--ease);
}
.view-all:hover i {
  transform: translateX(3px);
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.news-card {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all .3s var(--ease);
}
.news-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary);
  box-shadow: var(--neon);
}
.card-img {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--bg-1);
}
.card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s var(--ease);
}
.news-card:hover .card-img img {
  transform: scale(1.04);
}
.card-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  font-size: 12px;
  font-weight: 600;
  background: rgba(7, 11, 19, .82);
  border: 1px solid rgba(215, 255, 63, .5);
  color: var(--primary);
  padding: 4px 10px;
  border-radius: 6px;
  backdrop-filter: blur(6px);
  z-index: 2;
}
.card-body {
  padding: 22px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.card-body h3 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-1);
  line-height: 1.5;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-body p {
  font-size: 13px;
  color: var(--text-2);
  line-height: 1.65;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 14px;
}
.card-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  font-size: 13px;
  color: var(--text-3);
}
.read-more {
  color: var(--secondary);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: color .2s var(--ease);
}
.news-card:hover .read-more {
  color: var(--primary);
}
.article-back {
  display: flex;
  justify-content: center;
  margin-top: 48px;
}
.article-back .btn {
  gap: 8px;
}
.site-footer {
  background: var(--bg-1);
  border-top: 1px solid var(--line);
  position: relative;
}
.site-footer::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: -1px;
  height: 1px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  opacity: .45;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
  padding: 64px 24px 48px;
}
.footer-brand .logo {
  margin-bottom: 18px;
}
.footer-brand p {
  font-size: 14px;
  color: var(--text-2);
  margin-bottom: 16px;
  line-height: 1.7;
}
.footer-icp {
  font-size: 13px;
  color: var(--text-3);
}
.footer-col h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-1);
  margin-bottom: 18px;
  letter-spacing: .04em;
}
.footer-col a {
  display: block;
  font-size: 14px;
  color: var(--text-2);
  padding: 5px 0;
  transition: color .2s var(--ease);
}
.footer-col a:hover {
  color: var(--primary);
}
.footer-col p {
  font-size: 14px;
  color: var(--text-2);
  padding: 5px 0;
}
.footer-bottom {
  border-top: 1px solid var(--line);
  padding: 24px 0;
}
.footer-bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: var(--text-3);
}
.float-cta {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 50;
  opacity: 0;
  visibility: hidden;
  transform: translateX(30px);
  transition: all .35s var(--ease);
}
.float-cta.visible {
  opacity: 1;
  visibility: visible;
  transform: translateX(0);
}
.float-cta .btn {
  background: rgba(7, 11, 19, .92);
  border: 1px solid var(--primary);
  color: var(--primary);
  box-shadow: 0 0 24px rgba(215, 255, 63, .2);
  padding: 14px 28px;
  font-size: 14px;
}
.float-cta .btn:hover {
  background: rgba(18, 28, 46, .95);
  box-shadow: 0 0 36px rgba(215, 255, 63, .32);
}
.float-cta .pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
  position: relative;
  flex-shrink: 0;
}
.float-cta .pulse-dot::after {
  content: "";
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 1px solid var(--primary);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0% {
    transform: scale(.7);
    opacity: 1;
  }
  100% {
    transform: scale(1.6);
    opacity: 0;
  }
}
.float-cta-mobile {
  display: none;
}
.scroll-top {
  position: fixed;
  bottom: 24px;
  left: 24px;
  z-index: 50;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(7, 11, 19, .9);
  border: 1px solid rgba(255, 255, 255, .15);
  color: var(--text-2);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all .3s var(--ease);
}
.scroll-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.scroll-top:hover {
  color: var(--primary);
  border-color: var(--primary);
}
::selection {
  background: rgba(215, 255, 63, .25);
  color: var(--text-1);
}
::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--bg-0);
}
::-webkit-scrollbar-thumb {
  background: #25304a;
  border-radius: 6px;
}
::-webkit-scrollbar-thumb:hover {
  background: #31405e;
}
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}
@media (max-width: 1280px) {
  .main-nav {
    gap: 2px;
  }
  .nav-link {
    padding: 8px 10px;
    font-size: 13px;
  }
}
@media (max-width: 1023px) {
  .main-nav {
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    background: rgba(7, 11, 19, .98);
    flex-direction: column;
    align-items: stretch;
    padding: 18px 24px 28px;
    gap: 2px;
    transform: translateY(-10px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: all .3s var(--ease);
    border-bottom: 1px solid var(--line);
  }
  .main-nav::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -1px;
    height: 1px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    opacity: .5;
  }
  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }
  .main-nav .nav-link {
    font-size: 15px;
    padding: 12px 14px;
    border-radius: 8px;
    color: var(--text-2);
  }
  .main-nav .nav-link.active {
    background: rgba(215, 255, 63, .08);
    color: var(--primary);
  }
  .main-nav .nav-link.active::after {
    display: none;
  }
  .nav-divider {
    width: 100%;
    height: 1px;
    margin: 10px 0;
    background: var(--line);
  }
  .mobile-toggle {
    display: flex;
  }
  .header-login-btn {
    display: none;
  }
  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
}
@media (max-width: 767px) {
  body {
    padding-bottom: 74px;
  }
  .article-hero {
    padding: 112px 0 44px;
  }
  .breadcrumb {
    font-size: 13px;
    margin-bottom: 24px;
  }
  .breadcrumb .current {
    max-width: 220px;
  }
  .meta-row {
    gap: 14px;
    font-size: 12px;
  }
  .related-grid {
    grid-template-columns: 1fr;
  }
  .section-head {
    align-items: flex-start;
  }
  .article-main {
    padding: 40px 0 32px;
  }
  .related-section {
    padding-bottom: 56px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 48px 24px 32px;
  }
  .footer-bottom-inner {
    flex-direction: column;
    align-items: flex-start;
  }
  .float-cta {
    display: none;
  }
  .float-cta-mobile {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 90;
    background: rgba(7, 11, 19, .95);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    padding: 12px 16px;
    padding-bottom: calc(12px + env(safe-area-inset-bottom));
    border-top: 1px solid var(--line);
    gap: 12px;
  }
  .float-cta-mobile .btn {
    flex: 1;
    padding: 12px 16px;
    font-size: 14px;
  }
  .scroll-top {
    display: none;
  }
}
@media (max-width: 520px) {
  .logo-text {
    font-size: 17px;
  }
  .logo-badge {
    font-size: 10px;
  }
  .article-title {
    font-size: 1.5rem;
  }
  .article-content {
    font-size: 15px;
  }
}

/* roulang page: category2 */
:root {
  --bg-0: #070b13;
  --bg-1: #0c1320;
  --bg-2: #121c2e;
  --bg-3: #18233a;
  --primary: #d7ff3f;
  --secondary: #2fe6d4;
  --t1: #eef2f8;
  --t2: #9aaabd;
  --t3: #5d6b82;
  --danger: #ff5d73;
  --border: rgba(255,255,255,.08);
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-pill: 999px;
  --shadow-card: 0 4px 20px rgba(0,0,0,.25);
  --shadow-neon: 0 0 24px rgba(215,255,63,.18), 0 0 48px rgba(47,230,212,.12);
  --transition: cubic-bezier(.22,.61,.36,1);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  background: var(--bg-0);
  color: var(--t1);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
a { color: inherit; text-decoration: none; transition: color .2s var(--transition); }
img { max-width: 100%; display: block; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input { font-family: inherit; }

/* ===== Header ===== */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: 68px;
  background: rgba(7,11,19,.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  background-image: linear-gradient(rgba(7,11,19,.85), rgba(7,11,19,.85)), linear-gradient(90deg, rgba(215,255,63,.5), rgba(47,230,212,.5));
  background-origin: border-box;
  background-clip: padding-box, border-box;
  border-bottom: 1px solid transparent;
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; gap: 24px; }
.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-icon {
  width: 36px; height: 36px; border-radius: 10px;
  background: rgba(215,255,63,.12);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 0 18px rgba(215,255,63,.2);
}
.logo-icon svg { width: 20px; height: 20px; fill: var(--primary); }
.logo-text { font-size: 20px; font-weight: 900; letter-spacing: -0.02em; color: var(--t1); }
.logo-badge {
  font-size: 11px; font-weight: 600;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #070b13;
  padding: 2px 8px;
  border-radius: 999px;
  letter-spacing: .04em;
}
.main-nav { display: flex; align-items: center; gap: 6px; }
.main-nav .nav-link {
  font-size: 14px; font-weight: 500; letter-spacing: .05em;
  color: var(--t2);
  padding: 8px 12px;
  border-radius: 8px;
  position: relative;
  transition: color .2s var(--transition), background .2s var(--transition);
}
.main-nav .nav-link:hover { color: var(--t1); background: rgba(255,255,255,.04); }
.main-nav .nav-link.active { color: var(--primary); text-shadow: 0 0 12px rgba(215,255,63,.4); }
.main-nav .nav-link.active::after {
  content: '';
  position: absolute; left: 12px; right: 12px; bottom: 2px;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  border-radius: 2px;
  box-shadow: 0 0 8px rgba(215,255,63,.5);
}
.nav-divider { width: 1px; height: 20px; background: rgba(255,255,255,.12); margin: 0 4px; }
.header-cta {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--primary);
  color: #070b13;
  font-size: 14px; font-weight: 600;
  padding: 10px 22px;
  border-radius: 999px;
  box-shadow: 0 0 20px rgba(215,255,63,.25);
  transition: all .2s var(--transition);
  white-space: nowrap;
}
.header-cta:hover { box-shadow: 0 0 32px rgba(215,255,63,.4); transform: translateY(-1px); }
.header-cta:active { transform: scale(.98); }

/* Mobile toggle */
.mobile-toggle { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.mobile-toggle span { width: 24px; height: 2px; background: var(--t1); border-radius: 2px; transition: .3s var(--transition); }
.mobile-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.mobile-toggle.open span:nth-child(2) { opacity: 0; }
.mobile-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile drawer */
.mobile-drawer {
  position: fixed; top: 68px; left: 0; right: 0; bottom: 0; z-index: 99;
  background: rgba(7,11,19,.97);
  backdrop-filter: blur(30px);
  display: flex; flex-direction: column;
  padding: 32px 24px calc(32px + env(safe-area-inset-bottom));
  transform: translateX(100%);
  transition: transform .4s var(--transition);
  overflow-y: auto;
}
.mobile-drawer.open { transform: translateX(0); }
.mobile-drawer .drawer-group { margin-bottom: 28px; }
.mobile-drawer .drawer-label {
  font-size: 12px; font-weight: 600; letter-spacing: .1em;
  text-transform: uppercase; color: var(--t3); margin-bottom: 12px;
}
.mobile-drawer .drawer-link {
  display: block; font-size: 18px; font-weight: 600;
  padding: 12px 0; color: var(--t2);
  border-bottom: 1px solid rgba(255,255,255,.06);
  transition: color .2s;
}
.mobile-drawer .drawer-link:hover { color: var(--primary); }
.mobile-drawer .drawer-link.active { color: var(--primary); }
.mobile-drawer .drawer-cta { margin-top: 24px; }
.mobile-drawer .drawer-cta a {
  display: block; text-align: center;
  background: var(--primary); color: #070b13;
  font-size: 16px; font-weight: 600;
  padding: 14px 24px; border-radius: 999px;
}

/* ===== Hero ===== */
.cat-hero {
  position: relative;
  padding: 160px 0 80px;
  background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  min-height: 520px;
  display: flex; align-items: center;
}
.cat-hero::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(7,11,19,.96) 0%, rgba(7,11,19,.7) 60%, rgba(7,11,19,.4) 100%);
}
.cat-hero .container { position: relative; z-index: 2; }
.cat-breadcrumb {
  display: flex; align-items: center; gap: 8px;
  font-size: 14px; color: var(--t3); margin-bottom: 20px;
}
.cat-breadcrumb a { color: var(--t3); }
.cat-breadcrumb a:hover { color: var(--primary); }
.cat-breadcrumb span.sep { color: var(--t3); }
.cat-breadcrumb span.current { color: var(--t1); }
.cat-hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 16px;
}
.cat-hero p.lead {
  font-size: 17px;
  line-height: 1.75;
  color: var(--t2);
  max-width: 560px;
  margin-bottom: 32px;
}
.cat-hero-ctas { display: flex; gap: 16px; flex-wrap: wrap; }
.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--primary);
  color: #070b13;
  font-size: 15px; font-weight: 600;
  padding: 14px 28px;
  border-radius: 999px;
  transition: all .2s var(--transition);
  box-shadow: 0 0 20px rgba(215,255,63,.2);
}
.btn-primary:hover { box-shadow: 0 0 36px rgba(215,255,63,.4); transform: translateY(-2px); }
.btn-primary:active { transform: scale(.98); }
.btn-ghost {
  display: inline-flex; align-items: center; gap: 8px;
  background: transparent;
  color: var(--t1);
  font-size: 15px; font-weight: 500;
  padding: 14px 28px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.2);
  transition: all .2s var(--transition);
}
.btn-ghost:hover { border-color: var(--primary); color: var(--primary); }
.btn-ghost:active { transform: scale(.98); }

/* ===== Feature section ===== */
.cat-features { padding: 90px 0; background: var(--bg-1); position: relative; }
.features-grid { display: grid; grid-template-columns: 5fr 7fr; gap: 60px; }
.features-left { position: sticky; top: 100px; align-self: start; }
.features-left h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); font-weight: 900; line-height: 1.3; margin-bottom: 16px; letter-spacing: -0.02em; }
.features-left p { color: var(--t2); font-size: 15px; line-height: 1.7; max-width: 300px; }
.features-right { display: flex; flex-direction: column; }
.feature-item {
  display: flex; gap: 20px;
  padding: 28px 0;
  border-bottom: 1px solid var(--border);
  position: relative;
  transition: background .2s var(--transition);
}
.feature-item:first-child { border-top: 1px solid var(--border); }
.feature-item::before {
  content: '';
  position: absolute; left: -20px; top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--primary), var(--secondary));
  border-radius: 2px;
  opacity: 0;
  transition: opacity .3s var(--transition);
}
.feature-item:hover { background: rgba(18,28,46,.5); }
.feature-item:hover::before { opacity: 1; }
.feature-num {
  font-family: 'DIN Alternate','Bahnschrift',sans-serif;
  font-size: 32px; font-weight: 700;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.3;
  min-width: 60px;
  font-variant-numeric: tabular-nums;
}
.feature-body h3 { font-size: 18px; font-weight: 600; margin-bottom: 8px; color: var(--t1); }
.feature-body p { font-size: 14px; color: var(--t2); line-height: 1.7; margin-bottom: 8px; }
.feature-body .more-link {
  font-size: 13px; color: var(--primary); font-weight: 500;
  display: inline-flex; align-items: center; gap: 4px;
  transition: gap .2s var(--transition);
}
.feature-body .more-link:hover { gap: 8px; }

/* ===== Content sections ===== */
.content-section { padding: 90px 0; background: var(--bg-0); }
.content-section.alt { background: var(--bg-1); }
.content-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.content-grid.reverse .content-media { order: 1; }
.content-grid.reverse .content-text { order: 2; }
.content-text h2 {
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.3;
  margin-bottom: 16px;
  position: relative;
  padding-left: 16px;
}
.content-text h2::before {
  content: '';
  position: absolute; left: 0; top: 4px; bottom: 4px;
  width: 3px;
  background: linear-gradient(180deg, var(--primary), var(--secondary));
  border-radius: 3px;
}
.content-text p { color: var(--t2); font-size: 15px; line-height: 1.8; margin-bottom: 16px; }
.content-text ul { list-style: none; padding: 0; margin-bottom: 16px; }
.content-text ul li { padding-left: 24px; position: relative; color: var(--t2); font-size: 14px; line-height: 1.7; margin-bottom: 8px; }
.content-text ul li::before {
  content: '';
  position: absolute; left: 4px; top: 10px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 8px rgba(215,255,63,.4);
}
.content-media { position: relative; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-card); }
.content-media img { width: 100%; height: auto; aspect-ratio: 4/3; object-fit: cover; transition: transform .4s var(--transition); }
.content-media:hover img { transform: scale(1.03); }
.content-media::after {
  content: '';
  position: absolute; inset: 0;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--radius-lg);
  pointer-events: none;
}

/* ===== CTA strip ===== */
.cta-strip {
  padding: 50px 0;
  background: linear-gradient(135deg, rgba(215,255,63,.06), rgba(47,230,212,.04)), var(--bg-0);
  border-top: 1px solid rgba(215,255,63,.15);
  border-bottom: 1px solid rgba(47,230,212,.15);
}
.cta-strip-inner { display: flex; align-items: center; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.cta-strip h3 { font-size: 22px; font-weight: 700; margin-bottom: 6px; }
.cta-strip p { color: var(--t2); font-size: 14px; }

/* ===== FAQ ===== */
.faq-section { padding: 90px 0; background: var(--bg-0); }
.faq-header { text-align: center; margin-bottom: 48px; }
.faq-header h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); font-weight: 900; letter-spacing: -0.02em; margin-bottom: 8px; }
.faq-header p { color: var(--t2); font-size: 15px; }
.faq-wrap { max-width: 720px; margin: 0 auto; }
.faq-item {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color .3s var(--transition), box-shadow .3s var(--transition);
}
.faq-item.open { border-color: var(--primary); box-shadow: 0 0 20px rgba(215,255,63,.08); }
.faq-q {
  display: flex; justify-content: space-between; align-items: center;
  padding: 20px 24px;
  font-size: 16px; font-weight: 600;
  cursor: pointer;
  color: var(--t1);
  transition: color .2s;
}
.faq-q:hover { color: var(--primary); }
.faq-icon {
  width: 24px; height: 24px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; font-weight: 300;
  color: var(--t3);
  transition: transform .3s var(--transition), color .3s;
}
.faq-item.open .faq-icon { transform: rotate(45deg); color: var(--primary); }
.faq-a {
  max-height: 0; overflow: hidden;
  transition: max-height .3s var(--transition);
}
.faq-a-inner { padding: 0 24px 20px; font-size: 14px; line-height: 1.75; color: var(--t2); }

/* ===== Final CTA ===== */
.final-cta {
  padding: 90px 0;
  background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  position: relative;
  text-align: center;
}
.final-cta::before {
  content: '';
  position: absolute; inset: 0;
  background: rgba(7,11,19,.85);
}
.final-cta .container { position: relative; z-index: 2; }
.final-cta h2 { font-size: clamp(1.6rem, 3.5vw, 2.5rem); font-weight: 900; letter-spacing: -0.02em; margin-bottom: 12px; }
.final-cta p { color: var(--t2); font-size: 16px; margin-bottom: 32px; }
.final-cta .btn-primary { font-size: 16px; padding: 18px 40px; }

/* ===== Footer ===== */
.site-footer {
  background: var(--bg-1);
  border-top: 1px solid transparent;
  background-image: linear-gradient(var(--bg-1), var(--bg-1)), linear-gradient(90deg, var(--primary), var(--secondary));
  background-origin: border-box;
  background-clip: padding-box, border-box;
  border-top: 1px solid transparent;
  padding: 60px 0 0;
}
.footer-grid { display: grid; grid-template-columns: 4fr 2fr 2fr 2fr; gap: 40px; padding-bottom: 40px; }
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand p { color: var(--t3); font-size: 13px; line-height: 1.7; margin-bottom: 16px; max-width: 260px; }
.footer-icp { font-size: 12px; color: var(--t3); }
.footer-col h4 { font-size: 14px; font-weight: 600; color: var(--t1); margin-bottom: 16px; }
.footer-col a { display: block; font-size: 13px; color: var(--t3); padding: 5px 0; transition: color .2s; }
.footer-col a:hover { color: var(--primary); }
.footer-col p { font-size: 13px; color: var(--t3); padding: 3px 0; }
.footer-bottom { border-top: 1px solid var(--border); padding: 20px 0; }
.footer-bottom-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; }
.footer-bottom-inner span { font-size: 12px; color: var(--t3); }

/* ===== Floating CTA ===== */
.floating-cta {
  position: fixed; bottom: 24px; right: 24px; z-index: 50;
  display: inline-flex; align-items: center; gap: 10px;
  background: rgba(7,11,19,.9);
  border: 1px solid var(--primary);
  border-radius: 999px;
  padding: 12px 24px;
  color: var(--primary);
  font-size: 14px; font-weight: 600;
  box-shadow: 0 0 24px rgba(215,255,63,.2);
  backdrop-filter: blur(12px);
  transition: all .3s var(--transition);
  transform: translateX(120%);
  opacity: 0;
}
.floating-cta.visible { transform: translateX(0); opacity: 1; }
.floating-cta:hover { box-shadow: 0 0 40px rgba(215,255,63,.4); transform: translateX(0) scale(1.03); }
.floating-cta .pulse-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--primary); position: relative; }
.floating-cta .pulse-dot::after {
  content: '';
  position: absolute; inset: -3px;
  border-radius: 50%;
  background: rgba(215,255,63,.3);
  animation: pulse 2s ease-out infinite;
}
@keyframes pulse {
  0% { transform: scale(.5); opacity: 1; }
  100% { transform: scale(1.8); opacity: 0; }
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-0); }
::-webkit-scrollbar-thumb { background: var(--bg-3); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--t3); }

/* ===== Animations ===== */
.fade-up { opacity: 0; transform: translateY(24px); transition: opacity .6s var(--transition), transform .6s var(--transition); }
.fade-up.visible { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  html { scroll-behavior: auto; }
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .main-nav { display: none; }
  .header-cta { display: none; }
  .mobile-toggle { display: flex; }
  .features-grid { grid-template-columns: 1fr; gap: 40px; }
  .features-left { position: static; }
  .content-grid { grid-template-columns: 1fr; gap: 40px; }
  .content-grid.reverse .content-media { order: 0; }
  .content-grid.reverse .content-text { order: 1; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .cat-hero { padding: 140px 0 60px; min-height: 440px; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .cta-strip-inner { flex-direction: column; text-align: center; }
  .floating-cta { display: none; }
  .mobile-bottom-cta {
    position: fixed; bottom: 0; left: 0; right: 0; z-index: 90;
    display: flex; gap: 10px;
    padding: 12px 16px calc(12px + env(safe-area-inset-bottom));
    background: rgba(7,11,19,.92);
    backdrop-filter: blur(20px);
    border-top: 1px solid rgba(255,255,255,.08);
  }
  .mobile-bottom-cta a { flex: 1; text-align: center; padding: 12px 20px; border-radius: 999px; font-size: 14px; font-weight: 600; }
  .mobile-bottom-cta .btn-primary { background: var(--primary); color: #070b13; }
  .mobile-bottom-cta .btn-ghost { border: 1px solid rgba(255,255,255,.2); color: var(--t1); }
}
@media (min-width: 769px) {
  .mobile-bottom-cta { display: none; }
  .floating-cta { display: inline-flex; }
}

/* roulang page: category3 */
:root {
      --bg-0: #070b13;
      --bg-1: #0c1320;
      --bg-2: #121c2e;
      --bg-3: #18233a;
      --primary: #d7ff3f;
      --secondary: #2fe6d4;
      --t1: #eef2f8;
      --t2: #9aaabd;
      --t3: #5d6b82;
      --border: rgba(255, 255, 255, .08);
      --danger: #ff5d73;
      --gradient: linear-gradient(135deg, #d7ff3f, #2fe6d4);
      --radius-lg: 16px;
      --radius-md: 10px;
      --radius-sm: 6px;
      --radius-pill: 999px;
      --shadow-card: 0 4px 20px rgba(0, 0, 0, .25);
      --shadow-neon: 0 0 24px rgba(215, 255, 63, .18), 0 0 48px rgba(47, 230, 212, .12);
      --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", -apple-system, sans-serif;
      --font-num: "DIN Alternate", "Bahnschrift", var(--font-sans);
      --dur: .3s;
      --ease: cubic-bezier(.22, .61, .36, 1);
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      background: var(--bg-0);
      color: var(--t1);
      font-family: var(--font-sans);
      line-height: 1.75;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
      min-height: 100vh;
    }

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

    a {
      color: inherit;
      text-decoration: none;
    }

    button,
    input,
    select,
    textarea {
      font: inherit;
      color: inherit;
      background: none;
      border: none;
    }

    ul,
    ol {
      list-style: none;
    }

    :focus-visible {
      outline: 2px solid var(--secondary);
      outline-offset: 2px;
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      font-weight: 600;
      border-radius: var(--radius-pill);
      transition: all var(--dur) var(--ease);
      cursor: pointer;
      text-align: center;
      border: 1px solid transparent;
      white-space: nowrap;
    }

    .btn-primary {
      background: var(--primary);
      color: #070b13;
      padding: 12px 28px;
      font-size: 15px;
    }

    .btn-primary:hover {
      box-shadow: 0 0 26px rgba(215, 255, 63, .42);
      transform: translateY(-2px);
    }

    .btn-primary:active {
      transform: scale(.98);
    }

    .btn-ghost {
      background: transparent;
      color: var(--t1);
      padding: 12px 28px;
      font-size: 15px;
      border-color: rgba(255, 255, 255, .2);
    }

    .btn-ghost:hover {
      border-color: var(--primary);
      color: var(--primary);
      transform: translateY(-2px);
    }

    .btn-lg {
      padding: 18px 40px;
      font-size: 16px;
    }

    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 100;
      height: 68px;
      background: rgba(7, 11, 19, .85);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid rgba(215, 255, 63, .25);
      transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
    }

    .site-header.scrolled {
      box-shadow: 0 8px 32px rgba(0, 0, 0, .45);
      border-bottom-color: rgba(215, 255, 63, .45);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 100%;
      gap: 20px;
    }

    .logo {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      flex-shrink: 0;
    }

    .logo-icon {
      display: grid;
      place-items: center;
      width: 34px;
      height: 34px;
      background: var(--gradient);
      border-radius: 10px;
      color: #070b13;
      box-shadow: 0 0 18px rgba(215, 255, 63, .35);
    }

    .logo-icon svg {
      width: 20px;
      height: 20px;
      fill: currentColor;
    }

    .logo-text {
      font-size: 19px;
      font-weight: 900;
      letter-spacing: -.02em;
      color: var(--t1);
    }

    .logo-badge {
      font-size: 12px;
      font-weight: 600;
      padding: 2px 8px;
      border: 1px solid rgba(215, 255, 63, .45);
      color: var(--primary);
      border-radius: var(--radius-pill);
      letter-spacing: .04em;
    }

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

    .nav-link {
      font-size: 14px;
      font-weight: 500;
      letter-spacing: .05em;
      color: var(--t2);
      padding: 8px 14px;
      border-radius: var(--radius-pill);
      transition: color var(--dur) var(--ease), background var(--dur) var(--ease);
      position: relative;
    }

    .nav-link:hover {
      color: var(--t1);
      background: rgba(255, 255, 255, .04);
    }

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

    .nav-link.active::after {
      content: "";
      position: absolute;
      left: 14px;
      right: 14px;
      bottom: 0;
      height: 2px;
      background: var(--gradient);
      border-radius: 2px;
      box-shadow: 0 0 10px rgba(215, 255, 63, .5);
    }

    .nav-divider {
      width: 1px;
      height: 20px;
      background: rgba(255, 255, 255, .12);
      flex-shrink: 0;
      margin: 0 4px;
    }

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

    .header-login {
      padding: 9px 22px;
      font-size: 14px;
    }

    .nav-toggle {
      display: none;
      width: 40px;
      height: 40px;
      border-radius: 10px;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 5px;
      cursor: pointer;
    }

    .nav-toggle span {
      display: block;
      width: 20px;
      height: 2px;
      background: var(--t1);
      border-radius: 2px;
      transition: transform var(--dur) var(--ease), opacity .2s, background var(--dur);
    }

    .nav-toggle:hover span {
      background: var(--primary);
    }

    .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);
    }

    .page-hero {
      position: relative;
      padding: 160px 0 100px;
      background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
      overflow: hidden;
    }

    .page-hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(90deg, rgba(7, 11, 19, .94) 0%, rgba(7, 11, 19, .72) 55%, rgba(7, 11, 19, .35) 100%);
    }

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

    .breadcrumb {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      color: var(--t3);
      margin-bottom: 40px;
    }

    .breadcrumb a {
      color: var(--t3);
      transition: color var(--dur) var(--ease);
    }

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

    .breadcrumb .current {
      color: var(--t1);
    }

    .breadcrumb span {
      color: rgba(255, 255, 255, .3);
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      font-weight: 600;
      color: var(--primary);
      border: 1px solid rgba(215, 255, 63, .4);
      padding: 6px 16px;
      border-radius: var(--radius-pill);
      letter-spacing: .04em;
      margin-bottom: 20px;
      background: rgba(215, 255, 63, .06);
    }

    .page-hero h1 {
      font-size: clamp(2.4rem, 5vw, 3.6rem);
      font-weight: 900;
      letter-spacing: -.02em;
      line-height: 1.15;
      margin: 0 0 18px;
    }

    .hero-subtitle {
      font-size: clamp(1rem, 2vw, 1.125rem);
      color: var(--t2);
      max-width: 620px;
      line-height: 1.8;
      margin-bottom: 32px;
    }

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

    .section-tag {
      display: inline-block;
      font-size: 13px;
      font-weight: 700;
      letter-spacing: .08em;
      color: var(--secondary);
      margin-bottom: 14px;
      text-transform: uppercase;
    }

    .content-section {
      padding: clamp(64px, 10vw, 96px) 0;
    }

    .section-bg-dark {
      background: var(--bg-0);
    }

    .section-bg-alt {
      background: var(--bg-1);
    }

    .content-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 56px 64px;
      align-items: center;
    }

    .content-text h2,
    .faq-head h2 {
      font-size: clamp(1.6rem, 3vw, 2.25rem);
      font-weight: 900;
      letter-spacing: -.02em;
      line-height: 1.25;
      margin-bottom: 18px;
    }

    .content-text p {
      color: var(--t2);
      font-size: 16px;
      line-height: 1.85;
      margin-bottom: 16px;
    }

    .check-list {
      margin-top: 8px;
      display: grid;
      gap: 10px;
    }

    .check-list li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      color: var(--t1);
      font-size: 15px;
      line-height: 1.6;
    }

    .check-list li::before {
      content: "";
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--primary);
      margin-top: 10px;
      box-shadow: 0 0 8px rgba(215, 255, 63, .6);
      flex-shrink: 0;
    }

    .content-media {
      border-radius: var(--radius-lg);
      overflow: hidden;
      border: 1px solid rgba(255, 255, 255, .08);
      box-shadow: var(--shadow-card);
      transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
      background: var(--bg-2);
    }

    .content-media:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-neon);
      border-color: rgba(215, 255, 63, .4);
    }

    .content-media img {
      width: 100%;
      aspect-ratio: 4 / 3;
      object-fit: cover;
    }

    .benefit-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 22px;
    }

    .tag-item {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 16px;
      background: var(--bg-2);
      border: 1px solid rgba(255, 255, 255, .08);
      border-radius: var(--radius-pill);
      font-size: 14px;
      color: var(--t1);
      transition: all var(--dur) var(--ease);
      line-height: 1.4;
    }

    .tag-item:hover {
      border-color: rgba(215, 255, 63, .5);
      color: var(--primary);
      box-shadow: 0 0 14px rgba(215, 255, 63, .15);
      transform: translateY(-2px);
    }

    .tag-dot {
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--gradient);
      flex-shrink: 0;
    }

    .steps-list {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 16px;
      margin-top: 28px;
    }

    .step-card {
      background: var(--bg-2);
      border: 1px solid rgba(255, 255, 255, .08);
      border-radius: var(--radius-md);
      padding: 20px;
      transition: all var(--dur) var(--ease);
    }

    .step-card:hover {
      border-color: rgba(47, 230, 212, .5);
      box-shadow: 0 0 20px rgba(47, 230, 212, .12);
      transform: translateY(-4px);
    }

    .step-num {
      font-family: var(--font-num);
      font-size: 28px;
      font-weight: 700;
      background: var(--gradient);
      -webkit-background-clip: text;
      background-clip: text;
      color: transparent;
      margin-bottom: 10px;
      line-height: 1;
    }

    .step-title {
      font-weight: 600;
      font-size: 15px;
      margin-bottom: 6px;
      color: var(--t1);
    }

    .step-desc {
      font-size: 13px;
      color: var(--t3);
      line-height: 1.6;
    }

    .cta-bar {
      padding: 56px 0;
      background: var(--bg-2);
      border-top: 1px solid rgba(215, 255, 63, .18);
      border-bottom: 1px solid rgba(215, 255, 63, .18);
    }

    .cta-bar-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
      flex-wrap: wrap;
    }

    .cta-bar h3 {
      font-size: clamp(1.25rem, 2vw, 1.625rem);
      font-weight: 800;
      margin-bottom: 6px;
      color: var(--t1);
      letter-spacing: -.01em;
    }

    .cta-bar p {
      color: var(--t2);
      font-size: 15px;
    }

    .faq-section {
      padding: clamp(64px, 10vw, 96px) 0;
      background: var(--bg-1);
    }

    .faq-head {
      max-width: 720px;
      margin-bottom: 40px;
    }

    .faq-head p {
      color: var(--t2);
      margin-top: 6px;
    }

    .faq-list {
      max-width: 720px;
      display: grid;
      gap: 12px;
    }

    .faq-item {
      background: var(--bg-2);
      border: 1px solid rgba(255, 255, 255, .08);
      border-radius: 12px;
      overflow: hidden;
      transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
    }

    .faq-item.open {
      border-color: rgba(215, 255, 63, .45);
      background: var(--bg-3);
    }

    .faq-question {
      display: flex;
      align-items: center;
      justify-content: space-between;
      width: 100%;
      padding: 18px 20px;
      font-size: 16px;
      font-weight: 600;
      text-align: left;
      cursor: pointer;
      gap: 16px;
      color: var(--t1);
      line-height: 1.5;
    }

    .faq-toggle {
      width: 28px;
      height: 28px;
      border-radius: 50%;
      border: 1px solid rgba(215, 255, 63, .35);
      color: var(--primary);
      display: grid;
      place-items: center;
      font-size: 18px;
      transition: transform var(--dur) var(--ease), background var(--dur) var(--ease);
      flex-shrink: 0;
      line-height: 1;
    }

    .faq-item.open .faq-toggle {
      transform: rotate(45deg);
      background: rgba(215, 255, 63, .12);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height .38s var(--ease);
    }

    .faq-answer-inner {
      padding: 0 20px 18px;
      color: var(--t2);
      font-size: 14px;
      line-height: 1.8;
    }

    .faq-item.open .faq-answer {
      max-height: 320px;
    }

    .final-cta {
      position: relative;
      padding: clamp(72px, 10vw, 120px) 0;
      text-align: center;
      background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
    }

    .final-cta::before {
      content: "";
      position: absolute;
      inset: 0;
      background: rgba(7, 11, 19, .85);
      border-top: 1px solid rgba(215, 255, 63, .25);
      border-bottom: 1px solid rgba(215, 255, 63, .25);
    }

    .final-cta-inner {
      position: relative;
      z-index: 2;
      max-width: 700px;
      margin: 0 auto;
      padding: 0 24px;
    }

    .final-cta h2 {
      font-size: clamp(1.8rem, 4vw, 2.75rem);
      font-weight: 900;
      letter-spacing: -.02em;
      margin-bottom: 16px;
      line-height: 1.2;
    }

    .final-cta p {
      color: var(--t2);
      margin-bottom: 32px;
      font-size: 16px;
    }

    .site-footer {
      background: var(--bg-1);
      border-top: 1px solid rgba(215, 255, 63, .25);
      padding: 64px 0 0;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 40px;
      padding-bottom: 48px;
    }

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

    .footer-brand p {
      color: var(--t3);
      font-size: 14px;
      margin-top: 16px;
      max-width: 280px;
      line-height: 1.7;
    }

    .footer-icp {
      color: var(--t3);
      font-size: 13px;
      margin-top: 12px;
    }

    .footer-col h4 {
      font-size: 14px;
      font-weight: 600;
      color: var(--t1);
      margin-bottom: 16px;
      letter-spacing: .04em;
    }

    .footer-col a,
    .footer-col p {
      display: block;
      color: var(--t3);
      font-size: 14px;
      margin-bottom: 10px;
      transition: color var(--dur) var(--ease);
      line-height: 1.6;
    }

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

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, .08);
      padding: 20px 0;
    }

    .footer-bottom-inner {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 12px;
      flex-wrap: wrap;
      color: var(--t3);
      font-size: 13px;
    }

    .float-cta {
      position: fixed;
      z-index: 80;
    }

    .float-cta-desktop {
      bottom: 24px;
      right: 24px;
      display: flex;
    }

    .float-cta-desktop .btn {
      box-shadow: 0 0 24px rgba(215, 255, 63, .25);
      padding: 14px 28px;
      font-size: 15px;
    }

    .live-dot {
      display: inline-block;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--primary);
      box-shadow: 0 0 8px var(--primary);
      animation: pulse 2s infinite;
    }

    .float-cta-mobile {
      display: none;
      bottom: 0;
      left: 0;
      right: 0;
      padding: 12px 16px;
      padding-bottom: calc(12px + env(safe-area-inset-bottom));
      background: rgba(7, 11, 19, .92);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-top: 1px solid rgba(215, 255, 63, .2);
      gap: 12px;
    }

    .float-cta-mobile .btn {
      flex: 1;
    }

    input,
    select,
    textarea {
      background: rgba(7, 11, 19, .5);
      border: 1px solid rgba(255, 255, 255, .12);
      border-radius: 10px;
      height: 48px;
      padding: 0 14px;
      font-size: 14px;
      color: var(--t1);
      width: 100%;
      transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
    }

    input:focus,
    select:focus,
    textarea:focus {
      border-color: var(--secondary);
      box-shadow: 0 0 0 3px rgba(47, 230, 212, .15);
      outline: none;
    }

    input::placeholder,
    textarea::placeholder {
      color: var(--t3);
    }

    .reveal {
      opacity: 0;
      transform: translateY(24px);
      filter: blur(4px);
      transition: opacity .7s var(--ease), transform .7s var(--ease), filter .7s var(--ease);
    }

    .reveal.visible {
      opacity: 1;
      transform: none;
      filter: none;
    }

    ::-webkit-scrollbar {
      width: 10px;
    }

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

    ::-webkit-scrollbar-thumb {
      background: var(--bg-3);
      border-radius: 6px;
    }

    ::-webkit-scrollbar-thumb:hover {
      background: #223052;
    }

    @keyframes pulse {
      0%,
      100% {
        opacity: 1;
        transform: scale(1);
      }
      50% {
        opacity: .55;
        transform: scale(.85);
      }
    }

    @keyframes float {
      0%,
      100% {
        transform: translateY(0);
      }
      50% {
        transform: translateY(-10px);
      }
    }

    @media (max-width: 1024px) {
      .main-nav {
        position: fixed;
        top: 68px;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(7, 11, 19, .97);
        flex-direction: column;
        align-items: flex-start;
        padding: 32px 28px;
        gap: 4px;
        transform: translateX(100%);
        transition: transform .4s var(--ease);
        z-index: 99;
        display: flex;
        overflow-y: auto;
      }

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

      .main-nav .nav-divider {
        width: 100%;
        height: 1px;
        margin: 14px 0;
        background: rgba(255, 255, 255, .1);
      }

      .main-nav .nav-link {
        font-size: 19px;
        padding: 12px 0;
        width: 100%;
        border-radius: 0;
        display: block;
        color: var(--t2);
        border-bottom: 1px solid rgba(255, 255, 255, .04);
      }

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

      .main-nav .nav-link.active::after {
        left: 0;
        right: auto;
        bottom: 4px;
        width: 48px;
      }

      .nav-toggle {
        display: flex;
      }

      .header-login {
        display: none;
      }

      .content-grid {
        grid-template-columns: 1fr;
        gap: 40px;
      }

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

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

    @media (max-width: 768px) {
      .page-hero {
        padding: 130px 0 72px;
      }

      .cta-bar-inner {
        flex-direction: column;
        text-align: center;
        justify-content: center;
      }

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

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

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

      .float-cta-mobile {
        display: flex;
      }

      .content-section {
        padding: 60px 0;
      }

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

    @media (min-width: 769px) {
      .float-cta-mobile {
        display: none;
      }
    }

    @media (prefers-reduced-motion: reduce) {
      html {
        scroll-behavior: auto;
      }

      *,
      *::before,
      *::after {
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
      }

      .reveal {
        opacity: 1;
        transform: none;
        filter: none;
      }
    }