/* roulang page: index */
:root {
  --brand: #00E69C;
  --brand-hover: #3BEFB4;
  --dark: #0C0E0D;
  --dark-alt: #232623;
  --deepdark: #080A09;
  --light: #F5F5F0;
  --muted: #6B7280;
  --success: #16A34A;
  --error: #DC2626;
  --warning: #F59E0B;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-num: "Inter", "Helvetica Neue", Arial, sans-serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--dark);
  color: var(--light);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button, input, select { font-family: inherit; font-size: 1rem; }
input:focus-visible, select:focus-visible, button:focus-visible, a:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
}
::selection { background: rgba(0,230,156,.3); }

.container {
  width: 100%;
  max-width: 80rem;
  margin: 0 auto;
  padding: 0 1.25rem;
}
@media (max-width: 640px) {
  .container { padding: 0 1rem; }
}

/* ========== buttons ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: .75rem 1.5rem;
  border-radius: .5rem;
  font-weight: 600;
  font-size: .9375rem;
  line-height: 1.4;
  border: 1px solid transparent;
  transition: all .2s ease;
  white-space: nowrap;
  cursor: pointer;
}
.btn-primary {
  background: var(--brand);
  color: #0A0F0C;
  border-color: var(--brand);
}
.btn-primary:hover {
  background: var(--brand-hover);
  border-color: var(--brand-hover);
  box-shadow: 0 4px 18px rgba(0,230,156,.3);
  transform: translateY(-1px);
}
.btn-outline {
  background: transparent;
  color: var(--light);
  border-color: rgba(255,255,255,.25);
}
.btn-outline:hover {
  background: rgba(255,255,255,.08);
  border-color: rgba(255,255,255,.5);
}
.btn-dark-solid {
  background: rgba(255,255,255,.08);
  color: var(--light);
  border-color: rgba(255,255,255,.1);
}
.btn-dark-solid:hover {
  background: rgba(255,255,255,.15);
  transform: translateY(-1px);
}
.btn-dark-outline {
  background: transparent;
  color: var(--dark);
  border-color: rgba(0,0,0,.2);
}
.btn-dark-outline:hover {
  background: rgba(0,0,0,.05);
  border-color: rgba(0,0,0,.4);
}
.btn-block { width: 100%; }
.btn-sm { padding: .5rem 1rem; font-size: .875rem; }
.btn-lg { padding: .95rem 2rem; font-size: 1rem; }

/* ========== header ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(12,14,13,.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255,255,255,.06);
  height: 4.5rem;
}
.header-inner {
  height: 4.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
}
.logo {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: .1rem;
  font-size: 1.45rem;
  font-weight: 900;
  letter-spacing: -.01em;
  color: #fff;
  z-index: 2;
  line-height: 1;
}
.logo-char {
  color: var(--brand);
  font-style: italic;
  font-size: 1.65rem;
  font-weight: 900;
}
.logo-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand);
  margin-left: 3px;
  margin-top: 2px;
  box-shadow: 0 0 8px rgba(0,230,156,.7);
}
.nav-left, .nav-right {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}
.nav-link {
  color: rgba(255,255,255,.7);
  font-size: .9375rem;
  font-weight: 500;
  padding: .4rem 0;
  border-bottom: 2px solid transparent;
  transition: color .2s, border-color .2s;
  position: relative;
}
.nav-link:hover { color: #fff; }
.nav-link.active {
  color: var(--brand);
  border-bottom-color: var(--brand);
}
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  width: 40px;
  height: 40px;
  position: relative;
  z-index: 3;
  cursor: pointer;
  margin-left: auto;
}
.mobile-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: #fff;
  margin: 5px auto;
  transition: transform .3s, opacity .3s;
  border-radius: 2px;
}
.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-menu {
  display: none;
  position: fixed;
  top: 4.5rem;
  left: 0;
  right: 0;
  background: rgba(12,14,13,.98);
  border-bottom: 1px solid rgba(255,255,255,.06);
  padding: 1rem 1.25rem 1.5rem;
  flex-direction: column;
  gap: .25rem;
  z-index: 99;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  color: rgba(255,255,255,.8);
  font-size: 1.0625rem;
  font-weight: 500;
  padding: .75rem .5rem;
  border-radius: .375rem;
  transition: background .2s, color .2s;
}
.mobile-menu a:hover {
  background: rgba(255,255,255,.05);
  color: var(--brand);
}
.mobile-menu .btn {
  margin-top: .5rem;
}
@media (max-width: 1023px) {
  .nav-left, .nav-right { display: none; }
  .mobile-toggle { display: block; }
  .header-inner { justify-content: space-between; }
}

/* ========== hero ========== */
.hero {
  min-height: 88vh;
  display: flex;
  align-items: center;
  position: relative;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(12,14,13,.92) 0%, rgba(12,14,13,.55) 50%, rgba(12,14,13,.35) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 56rem;
  padding-top: 3rem;
  padding-bottom: 5rem;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-size: .8125rem;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--brand);
  background: rgba(0,230,156,.1);
  border: 1px solid rgba(0,230,156,.2);
  padding: .35rem .85rem;
  border-radius: 999px;
  margin-bottom: 1.5rem;
  text-transform: uppercase;
}
.hero-eyebrow::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 8px rgba(0,230,156,.8);
}
.hero h1 {
  font-size: clamp(2.25rem, 5vw, 3.75rem);
  font-weight: 900;
  letter-spacing: -.025em;
  line-height: 1.15;
  margin-bottom: 1.25rem;
  text-shadow: 0 2px 30px rgba(0,0,0,.4);
}
.hero h1 .highlight {
  color: var(--brand);
}
.hero-sub {
  font-size: clamp(1rem, 1.6vw, 1.1875rem);
  color: rgba(255,255,255,.78);
  line-height: 1.8;
  max-width: 43rem;
  margin-bottom: 2.25rem;
  text-shadow: 0 1px 12px rgba(0,0,0,.4);
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
}
.hero-scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  width: 24px;
  height: 40px;
  border: 2px solid rgba(255,255,255,.35);
  border-radius: 12px;
  z-index: 2;
}
.hero-scroll span {
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 8px;
  border-radius: 2px;
  background: var(--brand);
  animation: scrollDown 2s infinite;
}
@keyframes scrollDown {
  0% { opacity: 1; top: 6px; }
  60% { opacity: .4; top: 20px; }
  100% { opacity: 0; top: 28px; }
}

/* ========== section ========== */
.section-padding { padding: 5rem 0; }
@media (max-width: 768px) {
  .section-padding { padding: 3.5rem 0; }
}
.section-head {
  text-align: center;
  margin-bottom: 3rem;
}
.section-tag {
  display: inline-block;
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .14em;
  color: var(--brand);
  background: rgba(0,230,156,.08);
  padding: .3rem .8rem;
  border-radius: 999px;
  margin-bottom: 1rem;
  text-transform: uppercase;
}
.section-head h2 {
  font-size: clamp(1.9rem, 3.5vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -.02em;
  line-height: 1.2;
}
.section-sub {
  margin-top: .75rem;
  color: var(--muted);
  max-width: 38rem;
  margin-left: auto;
  margin-right: auto;
  font-size: 1.0625rem;
  line-height: 1.7;
}
.section-dark .section-sub { color: rgba(255,255,255,.6); }
.section-light .section-sub { color: var(--muted); }

/* ========== stats strip ========== */
.stats-strip {
  background: var(--dark-alt);
  border-top: 1px solid rgba(255,255,255,.06);
  border-bottom: 1px solid rgba(255,255,255,.06);
  padding: 2.25rem 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}
.stat-item {
  text-align: center;
  padding: .75rem 1rem;
}
.stat-num {
  font-family: var(--font-num);
  font-size: clamp(1.75rem, 2.5vw, 2.5rem);
  font-weight: 900;
  color: var(--brand);
  line-height: 1.1;
}
.stat-label {
  font-size: .875rem;
  color: rgba(255,255,255,.55);
  margin-top: .35rem;
}
@media (max-width: 768px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
}

/* ========== timeline ========== */
.agenda-section {
  background: var(--dark-alt);
  position: relative;
  overflow: hidden;
}
.agenda-section::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(0,230,156,.06) 0%, transparent 70%);
  pointer-events: none;
}
.timeline {
  max-width: 52rem;
  margin: 0 auto;
  position: relative;
}
.timeline-row {
  display: grid;
  grid-template-columns: 100px 52px 1fr;
  gap: 0;
  margin-bottom: 1.25rem;
}
.timeline-time {
  text-align: right;
  padding-top: 1.1rem;
  padding-right: 1rem;
  font-family: var(--font-num);
  font-weight: 700;
  font-size: .9375rem;
  color: var(--brand);
  white-space: nowrap;
}
.timeline-line {
  position: relative;
}
.timeline-line::before {
  content: '';
  position: absolute;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  height: calc(100% + 8px);
  background: rgba(255,255,255,.1);
}
.timeline-row:last-child .timeline-line::before { display: none; }
.timeline-dot {
  position: absolute;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 0 4px rgba(0,230,156,.13), 0 0 12px rgba(0,230,156,.45);
  z-index: 1;
}
.timeline-card {
  background: rgba(255,255,255,.02);
  border: 1px solid rgba(255,255,255,.07);
  border-radius: .625rem;
  padding: 1.15rem 1.4rem;
  transition: border-color .25s, background .25s, transform .25s;
}
.timeline-card:hover {
  border-color: rgba(0,230,156,.35);
  background: rgba(0,230,156,.02);
  transform: translateY(-2px);
}
.timeline-card h3 {
  font-size: 1.125rem;
  font-weight: 700;
  color: rgba(255,255,255,.92);
  margin-bottom: .2rem;
}
.timeline-card p {
  color: rgba(255,255,255,.55);
  font-size: .9063rem;
  line-height: 1.7;
}
@media (max-width: 640px) {
  .timeline-row { grid-template-columns: 74px 36px 1fr; }
  .timeline-time { font-size: .8125rem; padding-top: 1rem; padding-right: .75rem; }
  .timeline-card { padding: 1rem; }
}

/* ========== highlights ========== */
.highlights-section {
  background: var(--light);
  color: var(--dark);
}
.highlight-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}
.highlight-card {
  background: #fff;
  border: 1px solid rgba(0,0,0,.07);
  border-radius: .625rem;
  overflow: hidden;
  transition: box-shadow .25s, transform .25s, border-color .25s;
}
.highlight-card:hover {
  box-shadow: 0 12px 30px rgba(0,0,0,.08);
  transform: translateY(-4px);
  border-color: rgba(0,230,156,.4);
}
.highlight-img {
  aspect-ratio: 4/3;
  overflow: hidden;
  background: #e8e8e3;
}
.highlight-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.highlight-card:hover .highlight-img img {
  transform: scale(1.05);
}
.highlight-body {
  padding: 1.5rem;
}
.highlight-body h3 {
  font-size: 1.1875rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: .35rem;
}
.highlight-body p {
  font-size: .9375rem;
  color: var(--muted);
  line-height: 1.7;
}
@media (max-width: 1024px) {
  .highlight-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .highlight-grid { grid-template-columns: 1fr; }
}

/* ========== tickets ========== */
.tickets-section {
  background: var(--dark);
  position: relative;
  overflow: hidden;
}
.tickets-section::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 400px;
  height: 300px;
  background: radial-gradient(circle, rgba(0,230,156,.05) 0%, transparent 70%);
  pointer-events: none;
}
.ticket-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  align-items: stretch;
  max-width: 64rem;
  margin: 0 auto;
}
.ticket-card {
  background: rgba(255,255,255,.02);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: .75rem;
  padding: 2.25rem 2rem;
  display: flex;
  flex-direction: column;
  transition: padding .3s, transform .3s, box-shadow .3s, border-color .3s;
}
.ticket-card:hover {
  border-color: rgba(255,255,255,.2);
  transform: translateY(-4px);
}
.ticket-card.ticket-featured {
  background: linear-gradient(145deg, rgba(0,230,156,.12) 0%, rgba(12,14,13,.96) 40%);
  border: 1px solid rgba(0,230,156,.45);
  box-shadow: 0 0 40px rgba(0,230,156,.1), 0 12px 32px rgba(0,0,0,.35);
  border-radius: 1rem;
  padding: 2.75rem 2.25rem;
}
@media (min-width: 1024px) {
  .ticket-featured { transform: scale(1.05); }
  .ticket-featured:hover { transform: scale(1.05) translateY(-4px); }
}
.ticket-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--brand);
  color: #0A0F0C;
  font-size: .6875rem;
  font-weight: 800;
  letter-spacing: .08em;
  padding: .3rem .75rem;
  border-radius: 999px;
  text-transform: uppercase;
  white-space: nowrap;
}
.ticket-card { position: relative; }
.ticket-name {
  font-size: .875rem;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--muted);
  text-transform: uppercase;
  margin-bottom: .5rem;
}
.ticket-featured .ticket-name { color: rgba(255,255,255,.6); }
.ticket-price {
  font-family: var(--font-num);
  font-size: 2.75rem;
  font-weight: 900;
  line-height: 1.1;
  color: var(--light);
  margin-bottom: .25rem;
}
.ticket-price .currency {
  font-size: 1.25rem;
  font-weight: 700;
  vertical-align: top;
  margin-right: 2px;
  color: rgba(255,255,255,.6);
}
.ticket-featured .ticket-price { color: var(--brand); }
.ticket-desc {
  font-size: .875rem;
  color: rgba(255,255,255,.5);
  margin-bottom: 1.5rem;
}
.ticket-list {
  display: flex;
  flex-direction: column;
  gap: .65rem;
  margin-bottom: 2rem;
  flex-grow: 1;
}
.ticket-list li {
  display: flex;
  align-items: flex-start;
  gap: .55rem;
  font-size: .9375rem;
  color: rgba(255,255,255,.78);
  line-height: 1.5;
}
.ticket-list li .icon {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  margin-top: 2px;
  color: var(--brand);
}
.ticket-featured .ticket-list li { color: rgba(255,255,255,.9); }
@media (max-width: 1024px) {
  .ticket-grid { grid-template-columns: 1fr; max-width: 30rem; gap: 1.5rem; }
  .ticket-featured { transform: none; }
  .ticket-card.ticket-featured { padding: 2.25rem 2rem; }
}

/* ========== signup ========== */
.signup-section {
  background: var(--light);
  color: var(--dark);
}
.signup-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  align-items: center;
}
.signup-info h2 {
  font-size: clamp(1.9rem, 3vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -.02em;
  line-height: 1.2;
  margin-bottom: 1rem;
}
.signup-info p {
  color: var(--muted);
  font-size: 1.0625rem;
  line-height: 1.8;
  margin-bottom: 1.5rem;
}
.signup-note {
  background: rgba(0,230,156,.07);
  border-left: 3px solid var(--brand);
  padding: 1rem 1.25rem;
  border-radius: .375rem;
  font-size: .9375rem;
  color: #374151;
  line-height: 1.7;
}
.signup-form-wrap {
  background: #fff;
  border: 1px solid rgba(0,0,0,.06);
  border-radius: .75rem;
  padding: 2rem 2rem 1.75rem;
  box-shadow: 0 8px 30px rgba(0,0,0,.06);
}
.form-group {
  margin-bottom: 1.25rem;
}
.form-group label {
  display: block;
  font-size: .875rem;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: .5rem;
}
.form-group input,
.form-group select {
  width: 100%;
  height: 2.75rem;
  border: 1px solid rgba(0,0,0,.15);
  border-radius: .5rem;
  padding: 0 .875rem;
  background: #fff;
  color: var(--dark);
  transition: border-color .2s, box-shadow .2s;
}
.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(0,230,156,.15);
}
.form-group input::placeholder {
  color: #9ca3af;
}
.form-feedback {
  margin-top: 1rem;
  padding: .75rem 1rem;
  border-radius: .5rem;
  font-size: .875rem;
  line-height: 1.6;
  display: none;
}
.form-feedback.form-success {
  display: block;
  background: rgba(22,163,74,.08);
  border: 1px solid rgba(22,163,74,.3);
  color: #15803d;
}
.form-feedback.form-error {
  display: block;
  background: rgba(220,38,38,.08);
  border: 1px solid rgba(220,38,38,.3);
  color: #b91c1c;
}
@media (max-width: 900px) {
  .signup-grid { grid-template-columns: 1fr; gap: 2rem; }
}

/* ========== news ========== */
.news-section {
  background: var(--dark);
  position: relative;
}
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.news-card {
  background: rgba(255,255,255,.025);
  border: 1px solid rgba(255,255,255,.07);
  border-radius: .625rem;
  padding: 1.5rem 1.5rem 1.25rem;
  display: flex;
  flex-direction: column;
  transition: border-color .25s, box-shadow .25s, transform .25s, background .25s;
}
.news-card:hover {
  border-color: rgba(0,230,156,.35);
  background: rgba(0,230,156,.03);
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(0,0,0,.2);
}
.news-cat {
  display: inline-flex;
  align-self: flex-start;
  font-size: .75rem;
  font-weight: 700;
  color: var(--brand);
  background: rgba(0,230,156,.1);
  border-radius: 999px;
  padding: .25rem .65rem;
  margin-bottom: .9rem;
  text-transform: uppercase;
  letter-spacing: .05em;
}
.news-card h3 {
  font-size: 1.125rem;
  font-weight: 700;
  color: rgba(255,255,255,.93);
  line-height: 1.5;
  margin-bottom: .65rem;
}
.news-card p {
  font-size: .9063rem;
  color: rgba(255,255,255,.52);
  line-height: 1.7;
  margin-bottom: 1rem;
  flex-grow: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid rgba(255,255,255,.06);
  padding-top: .85rem;
}
.news-meta time {
  font-size: .8125rem;
  color: rgba(255,255,255,.4);
  font-family: var(--font-num);
}
.news-link {
  font-size: .8125rem;
  font-weight: 600;
  color: rgba(255,255,255,.6);
  transition: color .2s;
}
.news-card:hover .news-link { color: var(--brand); }
.news-empty {
  grid-column: 1 / -1;
  border: 1px dashed rgba(255,255,255,.18);
  border-radius: .625rem;
  padding: 3rem;
  text-align: center;
  color: rgba(255,255,255,.4);
  font-size: .9375rem;
}
@media (max-width: 1024px) {
  .news-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .news-grid { grid-template-columns: 1fr; }
}

/* ========== faq ========== */
.faq-section {
  background: var(--light);
  color: var(--dark);
}
.faq-list {
  max-width: 46rem;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: .85rem;
}
.faq-item {
  background: #fff;
  border: 1px solid rgba(0,0,0,.06);
  border-radius: .625rem;
  padding: 0;
  overflow: hidden;
  transition: border-color .2s, box-shadow .2s;
}
.faq-item.active {
  border-color: rgba(0,230,156,.3);
  box-shadow: 0 6px 20px rgba(0,0,0,.05);
}
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.1rem 1.4rem;
  background: none;
  border: none;
  font-size: 1rem;
  font-weight: 600;
  color: var(--dark);
  text-align: left;
  cursor: pointer;
  transition: background .2s;
}
.faq-question:hover { background: rgba(0,0,0,.015); }
.faq-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(0,0,0,.04);
  color: var(--muted);
  font-size: 1rem;
  font-weight: 400;
  transition: transform .3s, background .3s, color .3s;
}
.faq-item.active .faq-icon {
  transform: rotate(45deg);
  background: var(--brand);
  color: #0A0F0C;
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease, padding .3s ease;
  padding: 0 1.4rem;
}
.faq-item.active .faq-answer {
  max-height: 200px;
  padding: 0 1.4rem 1.2rem;
}
.faq-answer p {
  font-size: .9375rem;
  color: var(--muted);
  line-height: 1.75;
  border-top: 1px solid rgba(0,0,0,.04);
  padding-top: .85rem;
}

/* ========== CTA banner ========== */
.cta-banner {
  position: relative;
  background-image: url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
  padding: 5.5rem 0;
  text-align: center;
}
.cta-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, rgba(12,14,13,.88), rgba(12,14,13,.65));
}
.cta-content {
  position: relative;
  z-index: 2;
  max-width: 44rem;
  margin: 0 auto;
}
.cta-content h2 {
  font-size: clamp(1.9rem, 3.5vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -.02em;
  line-height: 1.2;
  margin-bottom: 1rem;
}
.cta-content p {
  font-size: 1.0625rem;
  color: rgba(255,255,255,.72);
  line-height: 1.8;
  margin-bottom: 2rem;
}

/* ========== footer ========== */
.site-footer {
  background: var(--deepdark);
  border-top: 1px solid rgba(255,255,255,.05);
  padding-top: 4rem;
  padding-bottom: 2rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 2.5rem;
  margin-bottom: 3rem;
}
.footer-brand .logo {
  position: static;
  transform: none;
  justify-content: flex-start;
  margin-bottom: 1rem;
}
.footer-brand p {
  color: rgba(255,255,255,.45);
  font-size: .9063rem;
  line-height: 1.7;
  max-width: 15rem;
}
.footer-col h4 {
  font-size: .875rem;
  font-weight: 700;
  color: rgba(255,255,255,.85);
  margin-bottom: 1.1rem;
  letter-spacing: .04em;
}
.footer-col a {
  display: block;
  color: rgba(255,255,255,.4);
  font-size: .9063rem;
  padding: .3rem 0;
  transition: color .2s, padding-left .2s;
}
.footer-col a:hover {
  color: var(--brand);
  padding-left: 4px;
}
.footer-col p {
  color: rgba(255,255,255,.4);
  font-size: .9063rem;
  line-height: 1.7;
}
.footer-social {
  display: flex;
  gap: .75rem;
  margin-top: 1rem;
}
.footer-social a {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255,255,255,.1);
  border-radius: .5rem;
  color: rgba(255,255,255,.5);
  font-size: .8125rem;
  transition: all .2s;
}
.footer-social a:hover {
  border-color: var(--brand);
  color: var(--brand);
  background: rgba(0,230,156,.05);
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.05);
  padding-top: 1.5rem;
  text-align: center;
  color: rgba(255,255,255,.3);
  font-size: .8125rem;
}
@media (max-width: 900px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
}
@media (max-width: 540px) {
  .footer-grid { grid-template-columns: 1fr; gap: 1.75rem; }
}

/* ========== focus / accessibility ========== */
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
  border-radius: .25rem;
}

/* roulang page: category1 */
:root {
            --primary: #C6F24E;
            --primary-hover: #D8F66A;
            --dark: #0C0E0D;
            --dark-2: #232623;
            --light: #F5F5F0;
            --gray: #6B7280;
            --white: #ffffff;
            --black: #0C0E0D;
            --border-dark: rgba(255, 255, 255, .08);
            --shadow-sm: 0 1px 2px rgba(12, 14, 13, .05);
            --shadow-md: 0 8px 24px rgba(12, 14, 13, .07);
            --radius: .75rem;
            --radius-lg: 1rem;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background: var(--dark);
            color: #e5e7eb;
            line-height: 1.6;
            font-size: 16px;
            overflow-x: hidden;
        }

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

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

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

        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: 88px 0;
        }

        .section-tag {
            display: inline-block;
            font-size: .8rem;
            font-weight: 600;
            letter-spacing: .12em;
            text-transform: uppercase;
            padding: 6px 16px;
            border-radius: 999px;
            background: rgba(198, 242, 78, .12);
            color: var(--primary);
            margin-bottom: 18px;
        }

        .section-title {
            font-size: 2rem;
            font-weight: 700;
            letter-spacing: -0.02em;
            line-height: 1.25;
        }

        .section-sub {
            font-size: 1rem;
            color: var(--gray);
            margin-top: 12px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 600;
            font-size: .95rem;
            padding: 14px 32px;
            border-radius: 12px;
            transition: all .25s ease;
            line-height: 1.2;
        }

        .btn-primary {
            background: var(--primary);
            color: #0C0E0D;
            box-shadow: 0 4px 16px rgba(198, 242, 78, .35);
        }

        .btn-primary:hover {
            background: var(--primary-hover);
            box-shadow: 0 8px 24px rgba(198, 242, 78, .4);
            transform: translateY(-2px);
        }

        .btn-outline {
            border: 1px solid rgba(255, 255, 255, .3);
            color: #fff;
            background: transparent;
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, .08);
            border-color: rgba(255, 255, 255, .5);
            transform: translateY(-2px);
        }

        .btn-dark {
            background: #0C0E0D;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, .12);
        }

        .btn-dark:hover {
            background: #232623;
            transform: translateY(-2px);
        }

        .badge {
            display: inline-block;
            font-size: .75rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 999px;
            background: rgba(198, 242, 78, .1);
            color: #4a7c1a;
        }

        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible,
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(12, 14, 13, .86);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-dark);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

        .header-nav {
            display: flex;
            align-items: center;
            gap: 32px;
            flex: 1;
        }

        .nav-right {
            justify-content: flex-end;
        }

        .nav-link {
            display: inline-block;
            color: rgba(255, 255, 255, .72);
            font-weight: 500;
            font-size: .93rem;
            padding: 6px 2px;
            position: relative;
            transition: color .2s ease;
            white-space: nowrap;
        }

        .nav-link:hover {
            color: #fff;
        }

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

        .nav-link.active::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 100%;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .logo {
            display: inline-flex;
            align-items: center;
            font-size: 1.7rem;
            font-weight: 900;
            color: #fff;
            letter-spacing: -0.02em;
            line-height: 1;
            padding: 0 28px;
            flex-shrink: 0;
            user-select: none;
        }

        .logo-mark {
            color: var(--primary);
            font-style: italic;
            font-weight: 900;
            margin-right: 2px;
            font-size: 1.8rem;
        }

        .logo-dot {
            display: inline-block;
            width: 7px;
            height: 7px;
            background: var(--primary);
            border-radius: 999px;
            margin-left: 3px;
            animation: pulse 2s infinite ease-in-out;
        }

        @keyframes pulse {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: .55;
                transform: scale(1.3);
            }
        }

        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            border: 1px solid rgba(255, 255, 255, .1);
            background: rgba(255, 255, 255, .04);
            color: #fff;
            font-size: 1.2rem;
            z-index: 60;
            transition: all .2s;
        }

        .nav-toggle.active {
            background: var(--primary);
            color: #0C0E0D;
            border-color: var(--primary);
        }

        .mobile-menu {
            display: none;
            position: absolute;
            top: 72px;
            left: 0;
            right: 0;
            background: rgba(12, 14, 13, .98);
            padding: 24px 20px 32px;
            border-bottom: 1px solid var(--border-dark);
            flex-direction: column;
            gap: 6px;
        }

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

        .mobile-menu a {
            display: block;
            padding: 14px 16px;
            border-radius: 12px;
            font-size: 1rem;
            font-weight: 500;
            color: rgba(255, 255, 255, .8);
            background: rgba(255, 255, 255, .03);
            margin-bottom: 6px;
            transition: all .2s;
        }

        .mobile-menu a:hover,
        .mobile-menu a.active {
            color: var(--primary);
            background: rgba(198, 242, 78, .08);
        }

        /* ===== Hero ===== */
        .page-hero {
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            min-height: 62vh;
            padding: 96px 0 72px;
            background-image: linear-gradient(to top, rgba(12, 14, 13, .95), rgba(12, 14, 13, .45)), url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            text-align: center;
            overflow: hidden;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--primary), transparent);
            opacity: .5;
        }

        .hero-kicker {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 20px;
            border-radius: 999px;
            background: rgba(198, 242, 78, .1);
            border: 1px solid rgba(198, 242, 78, .25);
            color: var(--primary);
            font-size: .85rem;
            font-weight: 600;
            letter-spacing: .08em;
            margin-bottom: 28px;
        }

        .hero-title {
            font-size: clamp(2.4rem, 6vw, 4.2rem);
            font-weight: 900;
            line-height: 1.1;
            letter-spacing: -0.03em;
            color: #fff;
            margin-bottom: 20px;
        }

        .hero-title .highlight {
            color: var(--primary);
            font-style: italic;
        }

        .hero-desc {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, .72);
            max-width: 640px;
            margin: 0 auto 36px;
            line-height: 1.75;
        }

        .hero-ctas {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
        }

        /* ===== Feature cards ===== */
        .feature-card {
            background: #fff;
            border: 1px solid #ecece5;
            border-radius: var(--radius);
            padding: 36px 28px;
            transition: all .25s ease;
            box-shadow: var(--shadow-sm);
            height: 100%;
        }

        .feature-card:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }

        .feature-icon {
            width: 52px;
            height: 52px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 14px;
            background: rgba(198, 242, 78, .15);
            color: #0C0E0D;
            margin-bottom: 24px;
        }

        .feature-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: #0C0E0D;
            margin-bottom: 10px;
        }

        .feature-card p {
            font-size: .92rem;
            color: var(--gray);
            line-height: 1.7;
        }

        /* ===== Article Grid ===== */
        .article-card {
            background: #fff;
            border: 1px solid #e8e8e2;
            border-radius: var(--radius);
            overflow: hidden;
            transition: all .25s ease;
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .article-card:hover {
            border-color: rgba(198, 242, 78, .8);
            box-shadow: 0 12px 32px rgba(12, 14, 13, .08);
            transform: translateY(-4px);
        }

        .article-thumb {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: #e5e7eb;
        }

        .article-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }

        .article-card:hover .article-thumb img {
            transform: scale(1.05);
        }

        .article-body {
            padding: 24px 22px 20px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .article-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 14px;
            gap: 8px;
        }

        .article-meta .date {
            font-size: .8rem;
            color: #9ca3af;
            font-weight: 500;
        }

        .article-title {
            font-size: 1.05rem;
            font-weight: 700;
            color: #0C0E0D;
            line-height: 1.45;
            margin-bottom: 10px;
        }

        .article-title a {
            transition: color .2s;
        }

        .article-title a:hover {
            color: #6fa01f;
        }

        .article-excerpt {
            font-size: .88rem;
            color: var(--gray);
            line-height: 1.65;
            flex: 1;
        }

        .article-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 18px;
            font-size: .88rem;
            font-weight: 600;
            color: #0C0E0D;
            transition: all .2s;
        }

        .article-more:hover {
            color: #6fa01f;
            gap: 10px;
        }

        /* ===== Pagination ===== */
        .pagination {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 12px;
            margin-top: 56px;
            flex-wrap: wrap;
        }

        .page-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 44px;
            height: 44px;
            padding: 0 8px;
            border-radius: 12px;
            border: 1px solid #e5e5df;
            background: #fff;
            color: #4b5563;
            font-size: .9rem;
            font-weight: 600;
            transition: all .2s;
        }

        .page-num:hover {
            border-color: var(--primary);
            color: #0C0E0D;
        }

        .page-num.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #0C0E0D;
            font-weight: 700;
            box-shadow: 0 4px 12px rgba(198, 242, 78, .35);
        }

        .page-next {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 0 18px;
            height: 44px;
            border-radius: 12px;
            border: 1px solid #e5e5df;
            background: #fff;
            color: #4b5563;
            font-size: .9rem;
            font-weight: 600;
            transition: all .2s;
        }

        .page-next:hover {
            border-color: var(--primary);
            color: #0C0E0D;
            gap: 10px;
        }

        /* ===== FAQ ===== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .faq-item {
            background: rgba(255, 255, 255, .04);
            border: 1px solid rgba(255, 255, 255, .08);
            border-radius: 16px;
            overflow: hidden;
            transition: all .3s ease;
        }

        .faq-item.open {
            border-color: rgba(198, 242, 78, .35);
            background: rgba(255, 255, 255, .06);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            width: 100%;
            padding: 22px 26px;
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            text-align: left;
            transition: color .2s;
        }

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

        .faq-icon {
            flex-shrink: 0;
            width: 32px;
            height: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(255, 255, 255, .06);
            font-size: 1.2rem;
            font-weight: 400;
            transition: transform .3s ease, background .3s ease;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: var(--primary);
            color: #0C0E0D;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease, padding .35s ease;
            padding: 0 26px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 26px 24px;
        }

        .faq-answer p {
            color: rgba(255, 255, 255, .65);
            font-size: .93rem;
            line-height: 1.75;
            border-top: 1px solid rgba(255, 255, 255, .06);
            padding-top: 16px;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            position: relative;
            padding: 100px 0;
            background-image: linear-gradient(to top, rgba(12, 14, 13, .95), rgba(12, 14, 13, .7)), url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            text-align: center;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--primary), transparent);
            opacity: .4;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #080A09;
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding: 68px 0 32px;
            color: rgba(255, 255, 255, .55);
        }

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

        .footer-brand .logo {
            padding: 0;
            font-size: 1.6rem;
            margin-bottom: 16px;
        }

        .footer-brand p {
            font-size: .9rem;
            line-height: 1.75;
            max-width: 260px;
            color: rgba(255, 255, 255, .5);
        }

        .footer-col h4 {
            font-size: .9rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: .04em;
        }

        .footer-col a {
            display: block;
            font-size: .9rem;
            color: rgba(255, 255, 255, .55);
            padding: 6px 0;
            transition: all .2s;
        }

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

        .footer-col p {
            font-size: .88rem;
            color: rgba(255, 255, 255, .5);
            line-height: 1.7;
            margin-bottom: 8px;
        }

        .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 14px;
        }

        .footer-social a {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            background: rgba(255, 255, 255, .04);
            border: 1px solid rgba(255, 255, 255, .06);
            color: rgba(255, 255, 255, .7);
            font-size: .85rem;
            font-weight: 600;
            padding: 0;
            transition: all .2s;
        }

        .footer-social a:hover {
            background: var(--primary);
            color: #0C0E0D;
            border-color: var(--primary);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .06);
            padding-top: 24px;
            text-align: center;
            font-size: .82rem;
            color: rgba(255, 255, 255, .4);
        }

        .footer-bottom p {
            line-height: 1.7;
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            font-size: .85rem;
            color: rgba(255, 255, 255, .5);
            margin-bottom: 20px;
            justify-content: center;
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, .7);
            transition: color .2s;
        }

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

        .breadcrumb .sep {
            opacity: .5;
        }

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

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .header-nav {
                gap: 20px;
            }

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

            .nav-link {
                font-size: .88rem;
            }
        }

        @media (max-width: 768px) {
            .header-nav {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .logo {
                font-size: 1.45rem;
                padding: 0;
                position: absolute;
                left: 50%;
                transform: translateX(-50%);
            }

            .page-hero {
                min-height: 56vh;
                padding: 72px 0 56px;
            }

            .hero-title {
                font-size: 2.1rem;
            }

            .hero-desc {
                font-size: .98rem;
            }

            .section {
                padding: 64px 0;
            }

            .section-title {
                font-size: 1.6rem;
            }

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

            .cta-section {
                padding: 72px 0;
            }
        }

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

            .btn {
                width: 100%;
                padding: 14px 20px;
            }

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

            .page-hero {
                padding: 60px 0 48px;
            }

            .pagination {
                gap: 8px;
            }

            .page-num {
                min-width: 38px;
                height: 40px;
                font-size: .85rem;
            }
        }

/* roulang page: article */
:root {
  --brand: #00E69C;
  --brand-hover: #33F0B0;
  --brand-dim: rgba(0, 230, 156, 0.15);
  --bg-dark: #0C0E0D;
  --bg-dark-2: #232623;
  --bg-light: #F5F5F0;
  --bg-white: #FFFFFF;
  --text-white: #FFFFFF;
  --text-gray: #B0B5B2;
  --text-dark: #1A1D1C;
  --text-muted: #6B7280;
  --border-white: rgba(255, 255, 255, 0.1);
  --border-dark: #E3E3DE;
  --radius: 12px;
  --radius-lg: 16px;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.12);
  --shadow-brand: 0 4px 20px rgba(0, 230, 156, 0.25);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-num: Inter, "Helvetica Neue", Arial, sans-serif;
  --header-h: 72px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  background: var(--bg-dark);
  color: var(--text-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; border: none; background: none; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 3px;
  border-radius: 4px;
}
.container {
  width: 100%;
  max-width: 1200px !important;
  margin: 0 auto !important;
  padding: 0 24px !important;
}
@media (max-width: 520px) {
  .container { padding: 0 16px !important; }
}
/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.9375rem;
  cursor: pointer;
  transition: all 0.25s ease;
  line-height: 1;
  white-space: nowrap;
}
.btn-primary { background: var(--brand); color: #0C0E0D; }
.btn-primary:hover {
  background: var(--brand-hover);
  box-shadow: var(--shadow-brand);
  transform: translateY(-2px);
}
.btn-primary:active { transform: translateY(0); box-shadow: none; }
.btn-sm { padding: 9px 20px; font-size: 0.875rem; }
.btn-outline {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.35);
  color: #FFFFFF;
}
.btn-outline:hover {
  border-color: var(--brand);
  color: var(--brand);
  background: rgba(0, 230, 156, 0.08);
}
/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(12, 14, 13, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-white);
  height: var(--header-h);
}
.header-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}
.site-header .logo {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: inline-flex;
  align-items: baseline;
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: #FFFFFF;
  white-space: nowrap;
}
.logo-char {
  color: var(--brand);
  font-style: italic;
  font-size: 1.75rem;
  font-weight: 900;
  margin-right: 2px;
  line-height: 1;
}
.logo-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--brand);
  border-radius: 50%;
  margin-left: 3px;
  position: relative;
  top: -10px;
  flex-shrink: 0;
}
.nav-left, .nav-right {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-right { gap: 12px; }
.nav-inner { display: flex; align-items: center; gap: 4px; }
.nav-link {
  padding: 8px 16px;
  font-size: 0.9375rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.82);
  border-radius: 8px;
  transition: all 0.2s ease;
  position: relative;
  display: inline-block;
}
.nav-link:hover { color: var(--brand); }
.nav-link.active {
  color: var(--brand);
  font-weight: 600;
}
.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 16px;
  right: 16px;
  height: 2px;
  background: var(--brand);
  border-radius: 2px;
}
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 10px;
  cursor: pointer;
  z-index: 1001;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: #FFFFFF;
  border-radius: 2px;
  transition: all 0.3s ease;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.mobile-menu {
  display: none;
  position: absolute;
  top: var(--header-h);
  left: 0;
  right: 0;
  background: var(--bg-dark);
  border-bottom: 1px solid var(--border-white);
  padding: 16px 24px 24px;
  flex-direction: column;
  gap: 4px;
  z-index: 1000;
}
.mobile-menu.open { display: flex; }
.mobile-menu .nav-link {
  display: block;
  padding: 12px 16px;
  font-size: 1rem;
  color: rgba(255,255,255,0.85);
  border-radius: 8px;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.mobile-menu .nav-link:hover { background: rgba(255,255,255,0.06); color: var(--brand); }
.mobile-menu .btn {
  margin-top: 16px;
  width: 100%;
}
/* ===== Article Hero ===== */
.article-hero {
  position: relative;
  padding: 72px 0 56px;
  background:
    linear-gradient(to top, rgba(12,14,13,0.94), rgba(12,14,13,0.45)),
    url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
  border-bottom: 1px solid var(--border-white);
}
.article-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none;
}
.article-hero .container { position: relative; z-index: 2; }
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--text-gray);
  margin-bottom: 28px;
}
.breadcrumb a {
  color: rgba(255, 255, 255, 0.72);
  transition: color 0.2s ease;
}
.breadcrumb a:hover { color: var(--brand); }
.breadcrumb .sep {
  color: rgba(255, 255, 255, 0.3);
  font-size: 0.75rem;
  flex-shrink: 0;
}
.breadcrumb .current {
  color: var(--text-gray);
  max-width: 320px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 0.8125rem;
}
.article-h1 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 900;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
  max-width: 900px;
  color: #FFFFFF;
}
.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px 28px;
  color: var(--text-gray);
  font-size: 0.875rem;
}
.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.meta-icon {
  width: 16px;
  height: 16px;
  opacity: 0.7;
  flex-shrink: 0;
}
/* ===== Article Main ===== */
.article-main {
  background: var(--bg-light);
  padding: 48px 0 80px;
}
.article-layout {
  max-width: 768px;
  margin: 0 auto;
}
.article-body {
  background: #FFFFFF;
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: clamp(28px, 5vw, 48px);
  font-size: 1.0625rem;
  line-height: 1.85;
  color: #333336;
  word-break: break-word;
}
.article-body h2 {
  font-size: 1.6rem;
  font-weight: 700;
  color: #111111;
  margin: 2.2em 0 0.8em;
  padding-bottom: 0.4em;
  border-bottom: 2px solid #F0F0EE;
  line-height: 1.3;
}
.article-body h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: #111111;
  margin: 1.8em 0 0.7em;
  line-height: 1.4;
}
.article-body h4 {
  font-size: 1.0625rem;
  font-weight: 600;
  color: #111111;
  margin: 1.4em 0 0.6em;
}
.article-body p {
  margin-bottom: 1.75em;
  text-align: justify;
  line-height: 1.85;
}
.article-body a {
  color: #00B87E;
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.2s ease;
}
.article-body a:hover { color: var(--brand); }
.article-body ul, .article-body ol {
  margin: 0 0 1.75em 0;
  padding-left: 1.4em;
}
.article-body ul { list-style: disc; }
.article-body ol { list-style: decimal; }
.article-body li {
  margin-bottom: 0.5em;
  line-height: 1.75;
}
.article-body li::marker { color: var(--brand); }
.article-body blockquote {
  border-left: 4px solid var(--brand);
  background: #F7FAF8;
  padding: 16px 24px;
  border-radius: 0 8px 8px 0;
  margin: 0 0 1.75em;
  color: #555;
  font-style: italic;
}
.article-body img {
  border-radius: var(--radius);
  margin: 2em auto;
  height: auto;
}
.article-body pre {
  background: #1a1d1c;
  color: #e5e5e5;
  border-radius: 8px;
  padding: 16px 20px;
  overflow-x: auto;
  font-size: 0.9rem;
  margin-bottom: 1.75em;
  font-family: 'SFMono-Regular', Consolas, monospace;
  line-height: 1.6;
}
.article-body code {
  background: #F0F0EE;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.9em;
  font-family: 'SFMono-Regular', Consolas, monospace;
}
.article-body pre code {
  background: transparent;
  padding: 0;
  color: inherit;
}
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1.75em;
  font-size: 0.9375rem;
}
.article-body th, .article-body td {
  border: 1px solid #E3E3DE;
  padding: 10px 14px;
  text-align: left;
  line-height: 1.6;
}
.article-body th { background: #F7F7F4; font-weight: 600; }
.article-body hr {
  border: none;
  border-top: 1px solid #E3E3DE;
  margin: 2.5em 0;
}
.article-body iframe {
  width: 100%;
  border-radius: var(--radius);
  margin: 1.75em 0;
  border: none;
  aspect-ratio: 16 / 9;
}
/* ===== Tags ===== */
.article-tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid #EEEEEA;
}
.tags-label {
  font-size: 0.8125rem;
  color: var(--text-muted);
  font-weight: 600;
  margin-right: 4px;
}
.tag-badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  background: #F5F5F0;
  border: 1px solid #E3E3DE;
  border-radius: 999px;
  font-size: 0.8125rem;
  color: #555;
  font-weight: 500;
  transition: all 0.2s ease;
}
.tag-badge:hover {
  border-color: var(--brand);
  color: #00A874;
  background: rgba(0, 230, 156, 0.06);
}
/* ===== Prev / Next ===== */
.article-prev-next {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 24px;
}
.pn-link {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 22px 26px;
  background: #FFFFFF;
  border: 1px solid var(--border-dark);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: all 0.25s ease;
}
.pn-link:hover {
  border-color: var(--brand);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.pn-link:active { transform: translateY(0); }
.pn-label {
  font-size: 0.8125rem;
  color: var(--text-muted);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 6px;
}
.pn-label .arrow { color: var(--brand); font-weight: 700; }
.pn-title {
  font-weight: 600;
  color: var(--text-dark);
  font-size: 0.9375rem;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.pn-next { text-align: right; align-items: flex-end; }
.pn-prev .label-wrap { justify-content: flex-start; }
/* ===== Not Found ===== */
.not-found {
  background: #FFFFFF;
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-lg);
  text-align: center;
  padding: 72px 32px;
}
.not-found-code {
  font-size: 4rem;
  font-weight: 900;
  color: #E8E8E4;
  line-height: 1;
  margin-bottom: 16px;
  font-family: var(--font-num);
}
.not-found h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-dark);
}
.not-found p {
  color: var(--text-muted);
  margin-bottom: 28px;
  font-size: 0.9375rem;
}
/* ===== Related ===== */
.related-section {
  background: var(--bg-dark);
  padding: 72px 0 40px;
  position: relative;
}
.related-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 28px 28px;
  pointer-events: none;
}
.related-section .container { position: relative; z-index: 2; }
.section-head {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  margin-bottom: 28px;
}
.section-eyebrow {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--brand);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.section-head h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  color: #FFFFFF;
  letter-spacing: -0.01em;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.related-card {
  background: var(--bg-dark-2);
  border: 1px solid var(--border-white);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}
.related-card:hover {
  border-color: rgba(0, 230, 156, 0.6);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.related-img {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #1A1D1C;
}
.related-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.related-card:hover .related-img img { transform: scale(1.06); }
.related-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.card-badge {
  display: inline-block;
  align-self: flex-start;
  padding: 4px 12px;
  background: var(--brand-dim);
  color: var(--brand);
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 12px;
}
.related-body h3 {
  font-size: 1rem;
  font-weight: 600;
  color: #FFFFFF;
  line-height: 1.5;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color 0.2s ease;
}
.related-card:hover .related-body h3 { color: var(--brand); }
.related-date {
  font-size: 0.8125rem;
  color: var(--text-gray);
  margin-top: auto;
}
/* ===== Back Home ===== */
.back-home {
  text-align: center;
  margin-top: 36px;
  padding-bottom: 8px;
}
.back-home a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-gray);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 10px 20px;
  border-radius: 8px;
  transition: all 0.2s ease;
}
.back-home a:hover {
  color: var(--brand);
  background: rgba(255,255,255,0.05);
}
.back-home svg {
  transition: transform 0.2s ease;
}
.back-home a:hover svg { transform: translateX(-4px); }
/* ===== Footer ===== */
.site-footer {
  background: #080A09;
  border-top: 1px solid var(--border-white);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 48px;
}
.footer-brand .logo {
  position: static;
  transform: none;
  display: inline-flex;
  align-items: baseline;
  font-size: 1.375rem;
  font-weight: 900;
  color: #FFFFFF;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}
.footer-brand .logo .logo-char {
  color: var(--brand);
  font-style: italic;
  font-size: 1.6rem;
  margin-right: 2px;
}
.footer-brand .logo .logo-dot {
  width: 5px;
  height: 5px;
  top: -8px;
}
.footer-brand p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.875rem;
  line-height: 1.75;
  max-width: 280px;
}
.footer-col h4 {
  color: #FFFFFF;
  font-size: 0.9375rem;
  font-weight: 700;
  margin-bottom: 18px;
}
.footer-col a {
  display: block;
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.875rem;
  line-height: 1.75;
  padding: 4px 0;
  transition: color 0.2s ease;
}
.footer-col a:hover { color: var(--brand); }
.footer-col p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.875rem;
  line-height: 1.75;
  padding: 2px 0;
}
.footer-social {
  display: flex;
  gap: 10px;
  margin-top: 14px;
}
.footer-social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 8px;
  color: rgba(255,255,255,0.7);
  font-size: 0.8125rem;
  font-weight: 600;
  transition: all 0.2s ease;
  padding: 0;
}
.footer-social a:hover {
  border-color: var(--brand);
  color: var(--brand);
  background: rgba(0,230,156,0.08);
  transform: translateY(-2px);
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 24px 0;
  text-align: center;
}
.footer-bottom p {
  color: rgba(255,255,255,0.4);
  font-size: 0.8125rem;
  letter-spacing: 0.02em;
}
/* ===== Responsive ===== */
@media (max-width: 1023px) {
  .nav-left, .nav-right { display: none; }
  .nav-toggle { display: flex; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .article-h1 { font-size: clamp(1.6rem, 5vw, 2.2rem); }
  .article-hero { padding: 56px 0 44px; }
}
@media (max-width: 767px) {
  .article-prev-next { grid-template-columns: 1fr; }
  .pn-next { text-align: left; align-items: flex-start; }
  .pn-next .pn-label .arrow { order: -1; }
  .related-grid { grid-template-columns: 1fr; }
  .article-main { padding: 32px 0 56px; }
  .article-body { padding: 24px 20px; font-size: 1rem; }
  .article-body h2 { font-size: 1.4rem; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .breadcrumb .current { max-width: 200px; }
}
@media (max-width: 520px) {
  .site-header .logo { font-size: 1.25rem; }
  .logo-char { font-size: 1.5rem; }
  .article-hero { padding: 44px 0 36px; }
  .article-h1 { font-size: 1.5rem; }
  .article-tags .tag-badge { padding: 5px 10px; font-size: 0.75rem; }
  .pn-link { padding: 18px 20px; }
  .not-found { padding: 48px 20px; }
  .related-section { padding: 56px 0 32px; }
}

/* roulang page: category2 */
:root {
    --brand: #00E69C;
    --brand-dark: #00C689;
    --brand-deep: #008F5A;
    --brand-soft: rgba(0, 230, 156, 0.12);
    --ink: #0C0E0D;
    --ink-2: #232623;
    --ink-3: #1A1D1B;
    --paper: #F5F5F0;
    --white: #FFFFFF;
    --gray: #6B7280;
    --gray-light: #A3A8A3;
    --line-dark: rgba(255, 255, 255, 0.1);
    --line-light: #E2E2DC;
    --text-dark: #1A1D1B;
    --text-muted-dark: #6B7280;
    --text-muted-light: rgba(255, 255, 255, 0.66);
    --success: #16A34A;
    --error: #DC2626;
    --warning: #F59E0B;
    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 20px;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 10px 28px rgba(0, 0, 0, 0.12);
    --shadow-brand: 0 8px 24px rgba(0, 230, 156, 0.28);
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    --font-num: Inter, "Helvetica Neue", Arial, sans-serif;
  }

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

  html {
    scroll-behavior: smooth;
    scroll-padding-top: 88px;
  }

  body {
    margin: 0;
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.75;
    color: #fff;
    background: var(--ink);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
  }

  img { max-width: 100%; display: block; }
  a { color: inherit; text-decoration: none; }
  ul, ol { margin: 0; padding: 0; }
  button { font-family: inherit; cursor: pointer; }

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

  .container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px;
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    height: 48px;
    padding: 0 28px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 15px;
    line-height: 1;
    border: 1px solid transparent;
    white-space: nowrap;
    transition: all 0.2s ease;
  }
  .btn-brand {
    background: var(--brand);
    color: #0B1F16;
  }
  .btn-brand:hover {
    background: #2DF0B0;
    transform: translateY(-1px);
    box-shadow: var(--shadow-brand);
  }
  .btn-ghost {
    background: transparent;
    color: #fff;
    border-color: rgba(255, 255, 255, 0.35);
  }
  .btn-ghost:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.65);
  }
  .btn-lg { height: 54px; padding: 0 36px; font-size: 16px; }
  .btn-sm { height: 40px; padding: 0 18px; font-size: 14px; }
  .btn-block { display: flex; width: 100%; }

  .site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(12, 14, 13, 0.82);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--line-dark);
  }
  .site-header .container {
    position: relative;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 16px;
    height: 72px;
  }
  .logo {
    display: inline-flex;
    align-items: center;
    justify-self: center;
    font-size: 22px;
    font-weight: 900;
    letter-spacing: 0.01em;
    color: #fff;
    line-height: 1;
  }
  .logo-char {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 8px;
    background: var(--brand);
    color: #0B1F16;
    font-weight: 900;
    margin-right: 4px;
    transform: skewX(-6deg);
  }
  .logo-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #FF4D4D;
    margin-left: 2px;
    align-self: center;
  }
  .nav-left, .nav-right {
    display: flex;
    align-items: center;
    gap: 28px;
    min-width: 0;
  }
  .nav-right { justify-content: flex-end; }
  .nav-link {
    font-size: 15px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.72);
    padding: 6px 2px;
    position: relative;
    transition: color 0.2s ease;
  }
  .nav-link:hover { color: #fff; }
  .nav-link.active { color: var(--brand); }
  .nav-link.active::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -4px;
    height: 2px;
    border-radius: 2px;
    background: var(--brand);
  }
  .nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 44px;
    height: 40px;
    background: transparent;
    border: 1px solid var(--line-dark);
    border-radius: 8px;
    padding: 0;
  }
  .nav-toggle span {
    width: 20px;
    height: 2px;
    background: #fff;
    border-radius: 2px;
    transition: transform 0.3s ease, opacity 0.3s ease;
  }
  .nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle.open span:nth-child(2) { opacity: 0; }
  .nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  .mobile-menu {
    display: none;
    flex-direction: column;
    gap: 4px;
    padding: 8px 24px 20px;
    background: rgba(12, 14, 13, 0.97);
    border-top: 1px solid var(--line-dark);
  }
  .mobile-menu .nav-link {
    padding: 12px 0;
    font-size: 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }
  .mobile-menu .btn { margin-top: 12px; }
  .mobile-menu .nav-link.active::after { display: none; }

  .page-hero {
    position: relative;
    background-size: cover;
    background-position: center;
    overflow: hidden;
  }
  .page-hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background-image: radial-gradient(rgba(255, 255, 255, 0.07) 1px, transparent 1px);
    background-size: 22px 22px;
    pointer-events: none;
    z-index: 0;
  }
  .page-hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(12, 14, 13, 0.94) 0%, rgba(12, 14, 13, 0.72) 50%, rgba(12, 14, 13, 0.5) 100%);
  }
  .page-hero-content {
    position: relative;
    z-index: 1;
    padding: 96px 0 88px;
    max-width: 740px;
  }
  .page-hero h1 {
    font-size: clamp(2.2rem, 5vw, 3.6rem);
    font-weight: 900;
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin: 20px 0 16px;
    color: #fff;
  }
  .page-hero .lead {
    font-size: 18px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.78);
    margin: 0 0 32px;
  }
  .hero-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
  }

  .breadcrumb {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.55);
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 6px 14px;
    border-radius: 999px;
  }
  .breadcrumb a { color: rgba(255, 255, 255, 0.8); transition: color 0.2s; }
  .breadcrumb a:hover { color: var(--brand); }
  .breadcrumb-sep { color: rgba(255, 255, 255, 0.35); }
  .breadcrumb .current { color: var(--brand); }

  .section { padding: 88px 0; }
  .section-light {
    background: var(--paper);
    color: var(--text-dark);
  }
  .section-dark { background: var(--ink); color: #fff; }
  .section-charcoal { background: var(--ink-2); color: #fff; }

  .section-heading {
    max-width: 560px;
    margin-bottom: 48px;
  }
  .section-heading .section-tag {
    display: inline-block;
    font-family: var(--font-num);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--brand);
    background: var(--brand-soft);
    border: 1px solid rgba(0, 230, 156, 0.22);
    padding: 4px 12px;
    border-radius: 999px;
    margin-bottom: 14px;
  }
  .section-heading h2 {
    font-size: clamp(1.6rem, 3vw, 2.3rem);
    font-weight: 800;
    line-height: 1.25;
    letter-spacing: -0.02em;
    margin: 0 0 12px;
  }
  .section-heading p {
    font-size: 16px;
    color: var(--text-muted-dark);
    margin: 0;
    line-height: 1.8;
  }
  .section-heading.center {
    margin-left: auto;
    margin-right: auto;
    text-align: center;
  }
  .section-heading.center p { max-width: 460px; margin-left: auto; margin-right: auto; }
  .section-dark .section-heading h2,
  .section-charcoal .section-heading h2 { color: #fff; }
  .section-dark .section-heading p,
  .section-charcoal .section-heading p { color: var(--text-muted-light); }
  .section-dark .section-heading .section-tag,
  .section-charcoal .section-heading .section-tag { color: var(--brand); }

  .process-grid {
    display: grid;
    grid-template-columns: 1.08fr 0.92fr;
    gap: 64px;
    align-items: center;
  }
  .process-col .section-heading { margin-bottom: 20px; }
  .process-list {
    list-style: none;
    display: flex;
    flex-direction: column;
  }
  .process-item {
    display: flex;
    gap: 20px;
    padding: 26px 0;
    border-bottom: 1px solid var(--line-light);
  }
  .process-item:first-child { padding-top: 12px; }
  .process-item:last-child { border-bottom: none; }
  .process-num {
    width: 48px;
    height: 48px;
    flex-shrink: 0;
    border-radius: 50%;
    background: var(--brand-soft);
    border: 1px solid rgba(0, 230, 156, 0.28);
    color: var(--brand-deep);
    font-family: var(--font-num);
    font-weight: 800;
    font-size: 18px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
  .process-body { flex: 1; }
  .process-body h3 {
    font-size: 18px;
    font-weight: 700;
    margin: 0 0 6px;
    color: var(--text-dark);
  }
  .process-body p {
    margin: 0;
    color: var(--text-muted-dark);
    font-size: 15px;
    line-height: 1.75;
    max-width: 520px;
  }
  .text-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 14px;
    font-weight: 600;
    color: var(--brand-deep);
    margin-top: 10px;
    transition: color 0.2s ease, gap 0.2s ease;
  }
  .text-link:hover { color: #007A4D; gap: 8px; }

  .process-aside { min-width: 0; }
  .ticket-card {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--line-light);
    background: #fff;
  }
  .ticket-card img {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
  }
  .ticket-label {
    position: absolute;
    left: 16px;
    bottom: 16px;
    background: rgba(12, 14, 13, 0.82);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    padding: 6px 14px;
    border-radius: 999px;
    backdrop-filter: blur(4px);
  }
  .process-aside .caption {
    font-size: 13px;
    color: var(--text-muted-dark);
    text-align: center;
    margin-top: 12px;
  }

  .banner-divider {
    position: relative;
    background-size: cover;
    background-position: center;
    padding: 84px 0;
  }
  .banner-overlay {
    position: absolute;
    inset: 0;
    background: rgba(12, 14, 13, 0.8);
  }
  .banner-divider .container {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 720px;
  }
  .banner-divider h2 {
    font-size: clamp(1.6rem, 3vw, 2.3rem);
    font-weight: 800;
    color: #fff;
    margin: 0 0 12px;
  }
  .banner-divider p {
    color: rgba(255, 255, 255, 0.75);
    font-size: 16px;
    margin: 0 0 26px;
  }
  .match-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    margin-bottom: 26px;
  }
  .match-chip {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    background: rgba(255, 255, 255, 0.06);
    color: rgba(255, 255, 255, 0.85);
    font-size: 14px;
    transition: border-color 0.2s ease, background 0.2s ease, color 0.2s ease;
  }
  .match-chip::before {
    content: "";
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--brand);
    flex-shrink: 0;
  }
  .match-chip:hover {
    border-color: var(--brand);
    color: #fff;
    background: rgba(0, 230, 156, 0.1);
  }

  .notes-grid {
    display: grid;
    grid-template-columns: 340px 1fr;
    gap: 72px;
    align-items: start;
  }
  .notes-heading {
    position: sticky;
    top: 104px;
    margin-bottom: 0;
  }
  .notes-list {
    display: flex;
    flex-direction: column;
  }
  .note-item {
    display: flex;
    gap: 24px;
    align-items: flex-start;
    padding: 28px 0;
    border-bottom: 1px solid var(--line-dark);
  }
  .note-item:first-child { padding-top: 4px; }
  .note-item:last-child { border-bottom: none; }
  .note-icon {
    width: 48px;
    height: 48px;
    flex-shrink: 0;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 700;
    color: var(--brand);
  }
  .note-body { flex: 1; }
  .note-body h3 {
    font-size: 18px;
    font-weight: 700;
    margin: 0 0 6px;
    color: #fff;
  }
  .note-body p {
    margin: 0 0 10px;
    color: rgba(255, 255, 255, 0.68);
    font-size: 15px;
    line-height: 1.75;
    max-width: 640px;
  }
  .note-link {
    font-size: 14px;
    font-weight: 600;
    color: var(--brand);
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: gap 0.2s ease;
  }
  .note-link:hover { gap: 8px; text-decoration: underline; text-underline-offset: 4px; }

  .faq-list {
    max-width: 820px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 14px;
  }
  .faq-item {
    background: #fff;
    border: 1px solid var(--line-light);
    border-radius: var(--radius);
    overflow: hidden;
    transition: box-shadow 0.2s ease, border-color 0.2s ease;
  }
  .faq-item[open] {
    border-color: rgba(0, 230, 156, 0.45);
    box-shadow: var(--shadow-sm);
  }
  .faq-item summary {
    list-style: none;
    padding: 20px 24px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-dark);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    user-select: none;
  }
  .faq-item summary::-webkit-details-marker { display: none; }
  .faq-item summary::after {
    content: "+";
    font-size: 20px;
    font-weight: 400;
    color: var(--brand-deep);
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--brand-soft);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: transform 0.25s ease;
  }
  .faq-item[open] summary::after { transform: rotate(45deg); }
  .faq-answer {
    margin: 0;
    padding: 0 24px 22px;
    color: var(--text-muted-dark);
    font-size: 15px;
    line-height: 1.8;
  }

  .cta-section {
    position: relative;
    background-size: cover;
    background-position: center;
  }
  .cta-overlay {
    position: absolute;
    inset: 0;
    background: rgba(12, 14, 13, 0.86);
  }
  .cta-section .container {
    position: relative;
    z-index: 1;
  }
  .cta-box {
    max-width: 780px;
    margin: 0 auto;
    text-align: center;
    background: rgba(12, 14, 13, 0.9);
    border: 1px solid rgba(0, 230, 156, 0.24);
    border-radius: var(--radius-lg);
    padding: 56px 48px;
    box-shadow: 0 0 60px rgba(0, 230, 156, 0.08);
  }
  .cta-box h2 {
    font-size: clamp(1.7rem, 3.4vw, 2.5rem);
    font-weight: 800;
    margin: 0 0 14px;
  }
  .cta-box p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 16px;
    margin: 0 0 28px;
  }

  .site-footer {
    background: #080A09;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 64px 0 24px;
  }
  .footer-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr 0.8fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  }
  .footer-brand .logo { justify-self: start; }
  .footer-brand p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
    line-height: 1.8;
    margin: 16px 0 0;
    max-width: 260px;
  }
  .footer-col h4 {
    color: #fff;
    font-size: 14px;
    font-weight: 700;
    margin: 0 0 16px;
  }
  .footer-col a {
    display: block;
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
    padding: 5px 0;
    transition: color 0.2s ease;
  }
  .footer-col a:hover { color: var(--brand); }
  .footer-col p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
    margin: 0 0 8px;
  }
  .footer-social { display: flex; gap: 10px; margin-top: 12px; }
  .footer-social a {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.15);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.7);
    transition: border-color 0.2s ease, color 0.2s ease;
  }
  .footer-social a:hover { border-color: var(--brand); color: var(--brand); }
  .footer-bottom {
    text-align: center;
    padding-top: 24px;
    color: rgba(255, 255, 255, 0.4);
    font-size: 13px;
  }

  .reveal { opacity: 1; transform: none; transition: opacity 0.6s ease, transform 0.6s ease; }
  .js-reveal .reveal { opacity: 0; transform: translateY(24px); }
  .js-reveal .reveal.is-visible { opacity: 1; transform: none; }

  @media (max-width: 1023px) {
    .site-header .container {
      display: flex;
      justify-content: center;
    }
    .nav-left, .nav-right { display: none; }
    .nav-toggle {
      display: flex;
      position: absolute;
      left: 16px;
      top: 50%;
      transform: translateY(-50%);
    }
    .mobile-menu.open { display: flex; }
    .page-hero-content { padding: 72px 0 56px; }
    .section { padding: 64px 0; }
    .process-grid { grid-template-columns: 1fr; gap: 40px; }
    .notes-grid { grid-template-columns: 1fr; gap: 32px; }
    .notes-heading { position: static; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .cta-box { padding: 40px 28px; }
  }

  @media (max-width: 767px) {
    .container { padding: 0 20px; }
    .section { padding: 48px 0; }
    .page-hero h1 { font-size: 2rem; }
    .page-hero .lead { font-size: 16px; }
    .hero-actions { flex-direction: column; align-items: stretch; }
    .hero-actions .btn { width: 100%; }
    .process-item { gap: 14px; }
    .process-num { width: 42px; height: 42px; font-size: 16px; }
    .note-item { gap: 16px; }
    .note-icon { width: 42px; height: 42px; font-size: 18px; }
    .faq-item summary { padding: 16px 18px; font-size: 15px; }
    .faq-answer { padding: 0 18px 18px; }
    .cta-box { padding: 32px 20px; }
    .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .site-footer { padding: 48px 0 20px; }
  }

  @media (max-width: 520px) {
    .page-hero h1 { font-size: 1.75rem; }
    .section-heading h2 { font-size: 1.45rem; }
    .page-hero-content { padding: 56px 0 48px; }
    .banner-divider { padding: 56px 0; }
    .match-chip { font-size: 13px; padding: 7px 13px; }
  }