/* roulang page: index */
:root {
  --primary-deep: #142320;
  --primary-mid: #1E3630;
  --gold-main: #C9A063;
  --gold-light: #E3C890;
  --bg-cream: #F7F5EF;
  --text-dark: #1F2825;
  --text-muted: #6B7A74;
  --accent-lime: #8FBF5A;
  --border-light: #E4DFD3;
  --footer-bg: #0F1A18;
  --radius-card: 12px;
  --radius-btn: 8px;
  --radius-img: 12px;
  --radius-banner: 16px;
  --shadow-card: 0 2px 8px rgba(20,35,32,0.06);
  --shadow-hover: 0 8px 24px rgba(20,35,32,0.12);
  --shadow-dark: 0 4px 16px rgba(0,0,0,0.35);
  --header-height: 72px;
  --ease: cubic-bezier(0.2, 0.8, 0.4, 1);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
  color: var(--text-dark);
  background: #fff;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
button { font-family: inherit; border: none; background: none; cursor: pointer; }
input, textarea { font-family: inherit; }

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

.section-head { margin-bottom: 48px; }
.section-head.center-align { text-align: center; }
.section-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--gold-main);
  text-transform: uppercase;
  padding: 6px 14px;
  border: 1px solid rgba(201,160,99,0.35);
  border-radius: 4px;
  background: rgba(201,160,99,0.08);
  margin-bottom: 12px;
}
.section-head h2 {
  font-size: 36px;
  line-height: 1.25;
  font-weight: 700;
  color: var(--text-dark);
  letter-spacing: -0.01em;
}
.section-head p.lead {
  margin-top: 12px;
  font-size: 16px;
  color: var(--text-muted);
  max-width: 640px;
}
.center-align .section-head p.lead { margin-left: auto; margin-right: auto; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 32px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: all 0.3s var(--ease);
  outline: none;
}
.btn-primary {
  background: linear-gradient(135deg, var(--gold-light), var(--gold-main));
  color: #1F2825;
  box-shadow: 0 4px 16px rgba(201,160,99,0.3);
}
.btn-primary:hover {
  background: linear-gradient(135deg, #EDD5A4, var(--gold-light));
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(201,160,99,0.42);
}
.btn-primary:active { transform: translateY(0); box-shadow: 0 2px 8px rgba(201,160,99,0.3); }
.btn-ghost {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255,255,255,0.65);
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.12);
  border-color: #fff;
  transform: translateY(-2px);
}
.btn-outline {
  background: transparent;
  color: var(--text-dark);
  border: 1px solid rgba(31,40,37,0.35);
}
.btn-outline:hover {
  border-color: var(--gold-main);
  color: var(--gold-main);
  background: rgba(201,160,99,0.06);
}
.btn:focus { outline: 2px solid var(--gold-light); outline-offset: 2px; }
.btn-lg { min-height: 54px; padding: 0 40px; font-size: 16px; }

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--gold-main);
  text-underline-offset: 4px;
  transition: color 0.3s var(--ease);
}
.text-link:hover { color: #A98343; text-decoration: underline; }

/* ===== Header / Nav ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background: rgba(20,35,32,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: background 0.35s var(--ease), box-shadow 0.35s var(--ease);
}
.site-header.is-scrolled {
  background: rgba(15,26,24,0.97);
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}
.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
}
.brand-logo {
  display: flex;
  align-items: center;
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  letter-spacing: 0.01em;
  white-space: nowrap;
  transition: color 0.3s var(--ease);
}
.brand-logo .logo-mark {
  width: 34px;
  height: 34px;
  margin-right: 10px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--gold-light), var(--gold-main));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 800;
  color: #142320;
}
.brand-logo:hover { color: var(--gold-light); }
.primary-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  height: var(--header-height);
  padding: 0 16px;
  font-size: 15px;
  font-weight: 500;
  color: rgba(255,255,255,0.85);
  transition: color 0.3s var(--ease);
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 0;
  height: 2px;
  background: var(--gold-main);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.3s var(--ease);
}
.nav-link:hover { color: var(--gold-light); }
.nav-link:hover::after { transform: scaleX(1); }
.nav-link.is-active { color: var(--gold-main); font-weight: 600; }
.nav-link.is-active::after { transform: scaleX(1); background: var(--gold-light); }

.nav-actions { display: flex; align-items: center; gap: 12px; }
.mega-trigger {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 42px;
  padding: 0 18px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  color: rgba(255,255,255,0.9);
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  transition: all 0.3s var(--ease);
}
.mega-trigger:hover,
.mega-trigger.is-active {
  background: rgba(201,160,99,0.12);
  border-color: rgba(201,160,99,0.4);
  color: var(--gold-light);
}
.mega-arrow { font-size: 12px; transition: transform 0.3s var(--ease); }
.mega-trigger.is-active .mega-arrow { transform: rotate(180deg); }
.mega-trigger:focus { outline: 2px solid var(--gold-light); outline-offset: 2px; }

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  border-radius: 8px;
  transition: background 0.3s var(--ease);
}
.nav-toggle:hover { background: rgba(255,255,255,0.08); }
.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}
.nav-toggle.is-active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.is-active span:nth-child(2) { opacity: 0; }
.nav-toggle.is-active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mega-panel {
  position: absolute;
  top: calc(100% + 4px);
  right: 24px;
  width: 720px;
  max-width: calc(100vw - 48px);
  background: var(--bg-cream);
  border-radius: 16px;
  border: 1px solid var(--border-light);
  box-shadow: 0 12px 40px rgba(0,0,0,0.18);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all 0.3s var(--ease);
  z-index: 1100;
  padding: 24px;
}
.mega-panel.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.mega-panel-inner {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 24px;
}
.mega-card {
  padding: 16px;
  background: #fff;
  border-radius: 12px;
  border: 1px solid var(--border-light);
}
.mega-title {
  display: block;
  font-size: 13px;
  font-weight: 700;
  color: var(--gold-main);
  margin-bottom: 12px;
  letter-spacing: 0.06em;
}
.mega-link {
  display: block;
  font-size: 14px;
  color: var(--text-dark);
  padding: 6px 0;
  border-radius: 4px;
  transition: color 0.2s var(--ease), padding-left 0.2s var(--ease);
}
.mega-link:hover { color: var(--gold-main); padding-left: 6px; }
.mega-desc { font-size: 13px; color: var(--text-muted); line-height: 1.6; }

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 720px;
  height: 100vh;
  max-height: 920px;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  animation: heroZoom 12s ease-in-out infinite alternate;
  will-change: transform;
}
@keyframes heroZoom {
  0% { transform: scale(1); }
  100% { transform: scale(1.05); }
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(15,26,24,0.9) 20%, rgba(15,26,24,0.45) 80%);
  z-index: 1;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  transition: transform 0.3s var(--ease);
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--gold-light);
  text-transform: uppercase;
  margin-bottom: 24px;
}
.hero-tag::before {
  content: '';
  width: 36px;
  height: 1px;
  background: var(--gold-main);
}
.hero h1 {
  font-size: 56px;
  line-height: 1.15;
  font-weight: 800;
  color: #fff;
  letter-spacing: 0.01em;
  max-width: 760px;
  margin-bottom: 20px;
  animation: fadeUp 1s var(--ease) both;
}
.hero-sub {
  font-size: 18px;
  line-height: 1.6;
  color: rgba(255,255,255,0.82);
  max-width: 560px;
  margin-bottom: 36px;
  animation: fadeUp 1s var(--ease) 0.15s both;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  animation: fadeUp 1s var(--ease) 0.3s both;
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.scroll-hint {
  position: absolute;
  bottom: 32px;
  right: 32px;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.6);
  font-size: 12px;
  letter-spacing: 0.1em;
}
.scroll-hint span {
  display: block;
  width: 2px;
  height: 18px;
  background: var(--gold-main);
  border-radius: 2px;
  animation: scrollDown 1.8s ease-in-out infinite;
}
@keyframes scrollDown {
  0% { transform: translateY(-4px); opacity: 0.4; }
  50% { transform: translateY(4px); opacity: 1; }
  100% { transform: translateY(-4px); opacity: 0.4; }
}

/* ===== Features ===== */
.features-section {
  background: var(--bg-cream);
  padding: 100px 0;
}
.feature-row {
  margin-bottom: 80px;
}
.feature-row:last-child { margin-bottom: 0; }
.feature-media {
  border-radius: var(--radius-banner);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(201,160,99,0.3);
}
.feature-media img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  transition: transform 0.6s var(--ease);
}
.feature-media:hover img { transform: scale(1.03); }
.feature-body {
  padding-left: 32px;
}
.feature-body h2 {
  font-size: 36px;
  line-height: 1.25;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 16px;
}
.feature-body p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-muted);
  margin-bottom: 20px;
  max-width: 480px;
}
.feature-list {
  list-style: none;
  margin-bottom: 24px;
}
.feature-list li {
  position: relative;
  padding-left: 28px;
  font-size: 15px;
  color: var(--text-dark);
  margin-bottom: 10px;
  line-height: 1.6;
}
.feature-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 0;
  width: 20px;
  height: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(201,160,99,0.14);
  color: var(--gold-main);
  font-size: 12px;
  font-weight: 700;
  border-radius: 50%;
}

/* ===== Rewards ===== */
.rewards-section {
  background: #fff;
  padding: 100px 0;
}
.rewards-track {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.reward-card {
  position: relative;
  background: var(--bg-cream);
  border-radius: var(--radius-card);
  border: 1px solid var(--border-light);
  padding: 28px 24px;
  transition: all 0.35s var(--ease);
  overflow: hidden;
}
.reward-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--gold-main), var(--gold-light));
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.35s var(--ease);
}
.reward-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.reward-card:hover::before { transform: scaleX(1); }
.reward-icon {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  background: rgba(201,160,99,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  transition: background 0.3s var(--ease);
}
.reward-card:hover .reward-icon { background: rgba(201,160,99,0.2); }
.reward-icon svg { width: 28px; height: 28px; }
.reward-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 8px;
}
.reward-card p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.reward-card .reward-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--gold-main);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: color 0.2s var(--ease);
}
.reward-card .reward-link:hover { color: #A98343; }

/* ===== Progress ===== */
.progress-section {
  background: var(--primary-deep);
  padding: 100px 0;
  position: relative;
  overflow: hidden;
}
.progress-section::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -80px;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(201,160,99,0.12) 0%, transparent 70%);
}
.progress-wrap {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 64px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.progress-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.stat-item {
  text-align: center;
  padding: 32px 16px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(201,160,99,0.15);
  border-radius: var(--radius-card);
}
.stat-number {
  display: block;
  font-size: 48px;
  font-weight: 800;
  color: var(--gold-main);
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
  margin-bottom: 8px;
}
.stat-label {
  font-size: 14px;
  color: rgba(255,255,255,0.75);
  letter-spacing: 0.04em;
}
.progress-visual h3 {
  font-size: 24px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 24px;
}
.progress-bar-wrap {
  background: rgba(255,255,255,0.08);
  border-radius: 20px;
  height: 12px;
  overflow: hidden;
  margin-bottom: 16px;
}
.progress-bar-fill {
  display: block;
  height: 100%;
  width: 0;
  border-radius: 20px;
  background: linear-gradient(90deg, var(--gold-main), var(--gold-light));
  position: relative;
  transition: width 1.2s var(--ease);
}
.progress-bar-fill::after {
  content: '';
  position: absolute;
  right: -6px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--gold-light);
  box-shadow: 0 0 10px rgba(227,200,144,0.6);
}
.progress-meta {
  font-size: 14px;
  color: rgba(255,255,255,0.65);
  line-height: 1.6;
}
.progress-meta strong { color: var(--gold-light); font-size: 15px; }

/* ===== CTA Banner ===== */
.cta-section {
  background: var(--bg-cream);
  padding: 80px 0;
}
.cta-banner {
  position: relative;
  border-radius: var(--radius-banner);
  background: linear-gradient(135deg, var(--primary-deep) 40%, var(--primary-mid));
  padding: 64px 48px;
  text-align: center;
  overflow: hidden;
  box-shadow: var(--shadow-dark);
}
.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% 20%, rgba(201,160,99,0.15) 0%, transparent 50%),
              radial-gradient(circle at 80% 80%, rgba(201,160,99,0.1) 0%, transparent 50%);
  pointer-events: none;
}
.cta-banner h2 {
  position: relative;
  font-size: 32px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}
.cta-banner p {
  position: relative;
  font-size: 16px;
  color: rgba(255,255,255,0.75);
  max-width: 560px;
  margin: 0 auto 32px;
}
.cta-banner .btn { position: relative; z-index: 1; }

/* ===== News ===== */
.news-section {
  background: #fff;
  padding: 100px 0;
}
.news-grid { row-gap: 32px; }
.news-card {
  display: flex;
  gap: 20px;
  background: var(--bg-cream);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-card);
  padding: 20px;
  height: 100%;
  transition: box-shadow 0.35s var(--ease), transform 0.35s var(--ease);
}
.news-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}
.news-thumb {
  flex: 0 0 160px;
  height: 100px;
  border-radius: 8px;
  overflow: hidden;
  background: var(--border-light) center/36px no-repeat;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%236B7A74'%3E%3Cpath d='M6 2h12v20H6z'/%3E%3C/svg%3E");
}
.news-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.news-thumb img.img-error { opacity: 0; }
.news-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.news-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}
.news-cat {
  display: inline-block;
  padding: 3px 10px;
  font-size: 12px;
  font-weight: 500;
  color: var(--gold-main);
  background: rgba(201,160,99,0.1);
  border-radius: 12px;
  line-height: 1.4;
}
.news-date {
  font-size: 13px;
  color: var(--text-muted);
}
.news-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-dark);
  line-height: 1.4;
  margin-bottom: 8px;
}
.news-title a { transition: color 0.2s var(--ease); }
.news-title a:hover { color: var(--gold-main); }
.news-excerpt {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}
.news-link {
  margin-top: 10px;
  font-size: 14px;
  font-weight: 600;
  color: var(--gold-main);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  align-self: flex-start;
  transition: color 0.2s var(--ease);
}
.news-link:hover { color: #A98343; }

.news-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 80px 20px;
}
.empty-icon {
  display: block;
  font-size: 40px;
  color: var(--text-muted);
  opacity: 0.5;
  margin-bottom: 16px;
}
.news-empty p { font-size: 16px; color: var(--text-muted); }

/* ===== FAQ ===== */
.faq-section {
  background: var(--bg-cream);
  padding: 100px 0;
}
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  background: #fff;
  border-radius: var(--radius-banner);
  border: 1px solid var(--border-light);
  padding: 0 32px;
  box-shadow: var(--shadow-card);
}
.faq-item {
  border-bottom: 1px solid var(--border-light);
}
.faq-item:last-child { border-bottom: none; }
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 0;
  font-size: 17px;
  font-weight: 600;
  color: var(--text-dark);
  text-align: left;
  transition: color 0.2s var(--ease);
  outline: none;
}
.faq-question:hover { color: var(--gold-main); }
.faq-question:focus { outline: 2px solid var(--gold-light); outline-offset: 2px; }
.faq-icon {
  flex: 0 0 24px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 1px solid rgba(201,160,99,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s var(--ease), background 0.3s var(--ease);
}
.faq-icon::before,
.faq-icon::after {
  content: '';
  position: absolute;
  width: 10px;
  height: 2px;
  background: var(--gold-main);
  border-radius: 1px;
  transition: opacity 0.3s;
}
.faq-icon::after { transform: rotate(90deg); }
.faq-icon { position: relative; }
.faq-item.is-open .faq-icon { transform: rotate(45deg); background: rgba(201,160,99,0.12); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s var(--ease), padding 0.3s var(--ease);
}
.faq-answer p {
  padding: 0 0 20px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-muted);
}
.faq-item.is-open .faq-answer { max-height: 300px; }

/* ===== Footer CTA ===== */
.footer-cta {
  background: var(--primary-deep);
  padding: 72px 0;
  text-align: center;
  border-top: 1px solid rgba(201,160,99,0.15);
}
.footer-cta h2 {
  font-size: 28px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
}
.footer-cta p {
  font-size: 15px;
  color: rgba(255,255,255,0.7);
  max-width: 520px;
  margin: 0 auto 28px;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--footer-bg);
  padding: 72px 0 0;
}
.footer-grid { row-gap: 32px; }
.footer-brand {
  display: inline-flex;
  align-items: center;
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
}
.footer-brand .logo-mark {
  width: 32px;
  height: 32px;
  margin-right: 10px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--gold-light), var(--gold-main));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 800;
  color: #142320;
}
.footer-brand:hover { color: var(--gold-light); }
.footer-about {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  line-height: 1.7;
  max-width: 320px;
}
.footer-social {
  display: flex;
  gap: 10px;
  margin-top: 20px;
}
.footer-social a {
  width: 38px;
  height: 38px;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.14);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.6);
  font-size: 15px;
  transition: all 0.25s var(--ease);
}
.footer-social a:hover {
  border-color: var(--gold-main);
  color: var(--gold-main);
  background: rgba(201,160,99,0.1);
}
.footer-col-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--gold-main);
  margin-bottom: 16px;
  letter-spacing: 0.04em;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links a {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  transition: color 0.2s var(--ease), padding-left 0.2s var(--ease);
}
.footer-links a:hover {
  color: #fff;
  padding-left: 4px;
}
.footer-contact p {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  line-height: 1.8;
}
.footer-bottom {
  margin-top: 56px;
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 20px 0;
}
.footer-bottom p {
  font-size: 13px;
  color: rgba(255,255,255,0.4);
  text-align: center;
}

/* ===== Image error fallback ===== */
.img-error { opacity: 0; }

/* ===== Responsive ===== */
@media screen and (max-width: 1023px) {
  .nav-toggle { display: inline-flex; }
  .primary-nav {
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: rgba(15,26,24,0.98);
    flex-direction: column;
    align-items: flex-start;
    padding: 8px 24px 24px;
    gap: 0;
    display: none;
    box-shadow: 0 16px 40px rgba(0,0,0,0.35);
  }
  .primary-nav.is-open { display: flex; }
  .nav-link {
    height: 48px;
    width: 100%;
    border-bottom: 1px solid rgba(255,255,255,0.06);
  }
  .nav-link::after { display: none; }
  .mega-panel {
    right: 12px;
    left: 12px;
    width: auto;
  }
  .feature-row { margin-bottom: 56px; }
  .feature-media img { height: 300px; }
  .feature-body { padding-left: 0; margin-top: 24px; }
  .progress-wrap { grid-template-columns: 1fr; gap: 40px; }
  .rewards-track { grid-template-columns: repeat(2, 1fr); }
  .news-card { flex-direction: column; }
  .news-thumb { flex: none; width: 100%; height: 140px; }
}
@media screen and (max-width: 640px) {
  .hero { min-height: 620px; }
  .hero h1 { font-size: 32px; }
  .hero-sub { font-size: 16px; }
  .hero-content { align-items: center; text-align: center; }
  .hero-actions { justify-content: center; flex-direction: column; width: 100%; }
  .btn { width: 100%; }
  .scroll-hint { display: none; }
  .section-head h2 { font-size: 26px; }
  .features-section, .rewards-section, .progress-section, .news-section, .faq-section { padding: 64px 0; }
  .feature-media img { height: 220px; }
  .rewards-track {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    gap: 16px;
    padding-bottom: 16px;
    scrollbar-width: none;
  }
  .rewards-track::-webkit-scrollbar { display: none; }
  .reward-card {
    min-width: 260px;
    scroll-snap-align: start;
  }
  .progress-stats { grid-template-columns: repeat(3, 1fr); gap: 12px; }
  .stat-number { font-size: 32px; }
  .stat-label { font-size: 12px; }
  .progress-visual h3 { font-size: 20px; }
  .cta-banner { padding: 48px 24px; }
  .cta-banner h2 { font-size: 24px; }
  .faq-list { padding: 0 20px; }
  .faq-question { font-size: 15px; }
  .footer-col-title { margin-top: 16px; }
}
@media screen and (max-width: 520px) {
  .brand-logo { font-size: 16px; }
  .brand-logo .logo-mark { width: 28px; height: 28px; font-size: 13px; margin-right: 8px; }
  .nav-container { padding: 0 16px; }
  .mega-trigger { display: none; }
  .feature-body h2 { font-size: 26px; }
  .feature-list li { font-size: 14px; }
  .news-card { padding: 16px; }
  .progress-stats { grid-template-columns: 1fr 1fr 1fr; }
}

/* roulang page: category1 */
:root {
      --primary-deep: #142320;
      --primary-mid: #1E3630;
      --gold-main: #C9A063;
      --gold-light: #E3C890;
      --bg-cream: #F7F5EF;
      --bg-panel: #FCFBF7;
      --text-dark: #1F2825;
      --text-muted: #6B7A74;
      --accent-lime: #8FBF5A;
      --border-light: #E4DFD3;
      --footer-bg: #0F1A18;
      --shadow-card: 0 2px 8px rgba(20,35,32,0.06);
      --shadow-hover: 0 8px 24px rgba(20,35,32,0.12);
      --radius-card: 12px;
      --radius-btn: 8px;
      --radius-img: 16px;
      --font-sans: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
    }
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body {
      font-family: var(--font-sans);
      background: var(--bg-cream);
      color: var(--text-dark);
      line-height: 1.7;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
    }
    img { max-width: 100%; display: block; }
    a { text-decoration: none; color: inherit; transition: color .3s ease; }
    button { font-family: inherit; border: none; background: none; cursor: pointer; }
    ul, ol { list-style: none; }
    .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
    .section-pad { padding: 88px 0; }
    .section-tag {
      display: inline-block;
      font-size: 13px;
      font-weight: 600;
      letter-spacing: .12em;
      color: var(--gold-main);
      text-transform: uppercase;
      background: rgba(201,160,99,.12);
      border-radius: 4px;
      padding: 4px 14px;
      margin-bottom: 16px;
    }
    .section-title {
      font-size: 36px;
      line-height: 1.25;
      font-weight: 700;
      margin-bottom: 16px;
      color: var(--text-dark);
    }
    .section-sub {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.8;
      max-width: 720px;
    }
    /* ===== Buttons ===== */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 14px 32px;
      border-radius: var(--radius-btn);
      font-size: 15px;
      font-weight: 600;
      line-height: 1;
      min-height: 48px;
      transition: all .3s cubic-bezier(.2,.8,.4,1);
      cursor: pointer;
      border: 1px solid transparent;
    }
    .btn-primary {
      background: var(--gold-main);
      color: var(--primary-deep);
      box-shadow: 0 4px 16px rgba(201,160,99,.25);
    }
    .btn-primary:hover {
      background: var(--gold-light);
      transform: translateY(-2px);
      box-shadow: 0 8px 24px rgba(201,160,99,.35);
    }
    .btn-primary:active { transform: translateY(0); }
    .btn-ghost {
      background: transparent;
      color: #fff;
      border-color: rgba(255,255,255,.6);
    }
    .btn-ghost:hover {
      background: rgba(255,255,255,.1);
      border-color: #fff;
    }
    .btn-dark {
      background: var(--primary-deep);
      color: #fff;
    }
    .btn-dark:hover { background: var(--primary-mid); transform: translateY(-2px); }
    .btn:focus-visible {
      outline: 2px solid var(--gold-light);
      outline-offset: 2px;
    }
    /* ===== Header / Nav ===== */
    .site-header {
      position: fixed;
      top: 0; left: 0; right: 0;
      z-index: 1000;
      height: 72px;
      background: rgba(20,35,32,.92);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(201,160,99,.15);
      transition: background .4s ease, box-shadow .4s ease;
    }
    .site-header.scrolled {
      background: rgba(15,26,24,.97);
      box-shadow: 0 8px 30px rgba(0,0,0,.3);
    }
    .nav-container {
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 24px;
      height: 72px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      position: relative;
    }
    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 18px;
      font-weight: 700;
      color: #fff;
      letter-spacing: .02em;
      white-space: nowrap;
    }
    .brand-logo .logo-mark {
      width: 38px; height: 38px;
      border-radius: 8px;
      background: linear-gradient(135deg, var(--gold-main), var(--gold-light));
      color: var(--primary-deep);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 15px;
      font-weight: 800;
      box-shadow: 0 0 20px rgba(201,160,99,.3);
    }
    .primary-nav {
      display: flex;
      align-items: center;
      gap: 32px;
      margin-left: auto;
      margin-right: 32px;
    }
    .primary-nav a {
      font-size: 15px;
      font-weight: 500;
      color: rgba(255,255,255,.8);
      padding: 8px 2px;
      position: relative;
      transition: color .3s ease;
    }
    .primary-nav a:hover { color: var(--gold-light); }
    .primary-nav a.is-active {
      color: var(--gold-main);
      font-weight: 600;
    }
    .primary-nav a.is-active::after {
      content: "";
      position: absolute;
      left: 0; right: 0; bottom: -2px;
      height: 2px;
      background: var(--gold-main);
      border-radius: 2px;
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .mega-trigger {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 15px;
      font-weight: 500;
      color: rgba(255,255,255,.85);
      padding: 10px 18px;
      border-radius: 8px;
      background: rgba(255,255,255,.06);
      border: 1px solid rgba(255,255,255,.12);
      transition: all .3s ease;
    }
    .mega-trigger:hover {
      color: var(--gold-light);
      border-color: rgba(201,160,99,.5);
      background: rgba(201,160,99,.1);
    }
    .mega-trigger.is-open {
      color: var(--gold-main);
      border-color: rgba(201,160,99,.6);
    }
    .mega-trigger.is-open .mega-arrow { transform: rotate(180deg); }
    .mega-arrow {
      display: inline-block;
      transition: transform .3s ease;
      font-size: 12px;
    }
    .nav-toggle { display: none; flex-direction: column; gap: 5px; padding: 10px; }
    .nav-toggle span {
      width: 22px; height: 2px;
      background: #fff;
      border-radius: 2px;
      transition: all .3s ease;
    }
    .nav-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    .nav-toggle.is-open span:nth-child(2) { opacity: 0; }
    .nav-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
    /* Mega Panel */
    .mega-panel {
      position: absolute;
      top: 100%;
      right: 24px;
      width: 720px;
      max-width: calc(100vw - 48px);
      background: var(--bg-cream);
      border-radius: 16px;
      border: 1px solid var(--border-light);
      box-shadow: 0 12px 40px rgba(0,0,0,.18);
      padding: 32px;
      opacity: 0;
      visibility: hidden;
      transform: translateY(16px);
      transition: all .35s cubic-bezier(.2,.8,.4,1);
      z-index: 999;
    }
    .mega-panel.is-open {
      opacity: 1;
      visibility: visible;
      transform: translateY(0);
    }
    .mega-panel-inner {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
    }
    .mega-card { display: flex; flex-direction: column; }
    .mega-title {
      font-size: 14px;
      font-weight: 600;
      color: var(--text-dark);
      margin-bottom: 14px;
      padding-bottom: 10px;
      border-bottom: 1px solid var(--border-light);
      position: relative;
    }
    .mega-title::after {
      content: "";
      position: absolute;
      left: 0; bottom: -1px;
      width: 32px; height: 2px;
      background: var(--gold-main);
      border-radius: 2px;
    }
    .mega-link {
      font-size: 14px;
      color: var(--text-muted);
      padding: 8px 0;
      transition: color .3s ease, padding-left .3s ease;
    }
    .mega-link:hover {
      color: var(--gold-main);
      padding-left: 6px;
    }
    .mega-desc {
      font-size: 13px;
      line-height: 1.7;
      color: var(--text-muted);
      margin-bottom: 12px;
    }
    /* ===== Hero ===== */
    .category-hero {
      position: relative;
      min-height: 620px;
      display: flex;
      align-items: center;
      background-size: cover;
      background-position: center center;
      overflow: hidden;
    }
    .category-hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(105deg, rgba(15,26,24,.92) 15%, rgba(15,26,24,.68) 55%, rgba(15,26,24,.35) 100%);
    }
    .category-hero-content {
      position: relative;
      z-index: 2;
      max-width: 1200px;
      margin: 0 auto;
      padding: 160px 24px 100px;
      width: 100%;
    }
    .hero-tag {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-size: 13px;
      font-weight: 600;
      letter-spacing: .14em;
      color: var(--gold-light);
      text-transform: uppercase;
      margin-bottom: 24px;
      background: rgba(201,160,99,.15);
      padding: 6px 18px;
      border-radius: 999px;
    }
    .hero-tag::before {
      content: "";
      width: 24px; height: 1px;
      background: var(--gold-main);
    }
    .category-hero h1 {
      font-size: 52px;
      line-height: 1.15;
      font-weight: 800;
      color: #fff;
      max-width: 680px;
      margin-bottom: 20px;
      letter-spacing: .01em;
    }
    .category-hero p {
      font-size: 18px;
      line-height: 1.7;
      color: rgba(255,255,255,.82);
      max-width: 560px;
      margin-bottom: 36px;
    }
    .hero-actions {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
    }
    /* ===== Intro ===== */
    .intro-section { background: var(--bg-cream); padding: 88px 0; }
    .intro-wrap {
      display: grid;
      grid-template-columns: 1.2fr .8fr;
      gap: 64px;
      align-items: center;
    }
    .intro-text p {
      font-size: 16px;
      line-height: 1.9;
      color: var(--text-muted);
      margin-top: 12px;
    }
    .intro-stats {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }
    .stat-card {
      background: var(--bg-panel);
      border-radius: var(--radius-card);
      border: 1px solid var(--border-light);
      padding: 28px 24px;
      text-align: center;
      box-shadow: var(--shadow-card);
      transition: all .35s ease;
    }
    .stat-card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-4px);
    }
    .stat-num {
      font-size: 42px;
      font-weight: 800;
      color: var(--gold-main);
      line-height: 1.1;
      font-variant-numeric: tabular-nums;
    }
    .stat-label {
      font-size: 14px;
      color: var(--text-muted);
      margin-top: 8px;
    }
    /* ===== Play Detail ===== */
    .play-section { background: var(--bg-panel); padding: 96px 0; }
    .section-head {
      text-align: center;
      margin-bottom: 64px;
    }
    .section-head .section-title { margin-bottom: 8px; }
    .section-head p {
      color: var(--text-muted);
      max-width: 600px;
      margin: 0 auto;
      font-size: 16px;
    }
    .play-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 64px;
      align-items: center;
      margin-bottom: 80px;
    }
    .play-row:last-child { margin-bottom: 0; }
    .play-image {
      position: relative;
      border-radius: var(--radius-img);
      overflow: hidden;
      box-shadow: 0 12px 36px rgba(20,35,32,.15);
      border: 1px solid rgba(201,160,99,.3);
    }
    .play-image img {
      width: 100%;
      height: 340px;
      object-fit: cover;
      transition: transform .6s ease;
    }
    .play-image:hover img { transform: scale(1.04); }
    .play-text .play-label {
      font-size: 13px;
      font-weight: 600;
      color: var(--gold-main);
      letter-spacing: .1em;
      text-transform: uppercase;
      margin-bottom: 12px;
      display: inline-block;
      background: rgba(201,160,99,.1);
      padding: 4px 12px;
      border-radius: 4px;
    }
    .play-text h3 {
      font-size: 26px;
      font-weight: 700;
      margin-bottom: 16px;
      color: var(--text-dark);
      line-height: 1.35;
    }
    .play-text p {
      font-size: 15px;
      line-height: 1.85;
      color: var(--text-muted);
      margin-bottom: 20px;
    }
    .play-points {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }
    .play-points li {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 15px;
      color: var(--text-dark);
    }
    .play-points li i {
      color: var(--gold-main);
      font-size: 14px;
      flex-shrink: 0;
    }
    .play-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      margin-top: 24px;
      font-size: 15px;
      font-weight: 600;
      color: var(--gold-main);
      transition: gap .3s ease;
    }
    .play-link:hover { gap: 12px; color: var(--gold-main); }
    /* ===== Scene ===== */
    .scene-section {
      background: var(--primary-deep);
      padding: 96px 0;
      position: relative;
      overflow: hidden;
    }
    .scene-section::before {
      content: "";
      position: absolute;
      top: -200px; right: -200px;
      width: 500px; height: 500px;
      background: radial-gradient(circle, rgba(201,160,99,.08) 0%, transparent 70%);
      border-radius: 50%;
    }
    .scene-section .section-title { color: #fff; }
    .scene-section .section-sub { color: rgba(255,255,255,.65); }
    .scene-grid {
      margin-top: 48px;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .scene-card {
      background: rgba(255,255,255,.04);
      border: 1px solid rgba(201,160,99,.2);
      border-radius: var(--radius-card);
      padding: 36px 28px;
      transition: all .35s ease;
      position: relative;
      overflow: hidden;
    }
    .scene-card::before {
      content: "";
      position: absolute;
      top: 0; left: 0; right: 0;
      height: 2px;
      background: linear-gradient(90deg, var(--gold-main), var(--gold-light));
      transform: scaleX(0);
      transition: transform .4s ease;
    }
    .scene-card:hover::before { transform: scaleX(1); }
    .scene-card:hover {
      background: rgba(255,255,255,.08);
      transform: translateY(-4px);
      border-color: rgba(201,160,99,.4);
    }
    .scene-icon {
      width: 52px; height: 52px;
      border-radius: 12px;
      background: rgba(201,160,99,.15);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 20px;
    }
    .scene-icon i {
      font-size: 22px;
      color: var(--gold-main);
    }
    .scene-card h4 {
      font-size: 18px;
      font-weight: 600;
      color: #fff;
      margin-bottom: 10px;
    }
    .scene-card p {
      font-size: 14px;
      line-height: 1.7;
      color: rgba(255,255,255,.6);
    }
    /* ===== Process ===== */
    .process-section { background: var(--bg-cream); padding: 96px 0; }
    .process-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 0;
      margin-top: 56px;
      position: relative;
      counter-reset: step;
    }
    .process-steps::before {
      content: "";
      position: absolute;
      top: 36px;
      left: 8%;
      right: 8%;
      height: 2px;
      background: linear-gradient(90deg, var(--gold-main), var(--gold-light));
      z-index: 0;
    }
    .process-step {
      position: relative;
      text-align: center;
      z-index: 1;
      padding: 0 16px;
      counter-increment: step;
    }
    .process-num {
      width: 72px; height: 72px;
      border-radius: 50%;
      background: var(--bg-panel);
      border: 2px solid var(--gold-main);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 24px;
      font-weight: 800;
      color: var(--gold-main);
      margin: 0 auto 20px;
      box-shadow: 0 0 0 8px var(--bg-cream);
      font-variant-numeric: tabular-nums;
    }
    .process-step h4 {
      font-size: 18px;
      font-weight: 600;
      color: var(--text-dark);
      margin-bottom: 8px;
    }
    .process-step p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }
    /* ===== Recommend ===== */
    .recommend-section { background: var(--bg-panel); padding: 96px 0; }
    .recommend-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 28px;
      margin-top: 48px;
    }
    .recommend-card {
      background: #fff;
      border-radius: var(--radius-card);
      border: 1px solid var(--border-light);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      transition: all .35s ease;
    }
    .recommend-card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-6px);
    }
    .recommend-thumb {
      height: 200px;
      overflow: hidden;
      position: relative;
    }
    .recommend-thumb img {
      width: 100%; height: 100%;
      object-fit: cover;
      transition: transform .5s ease;
    }
    .recommend-card:hover .recommend-thumb img { transform: scale(1.05); }
    .recommend-thumb::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent 60%, rgba(20,35,32,.35));
    }
    .recommend-body { padding: 24px; }
    .recommend-body h4 {
      font-size: 19px;
      font-weight: 600;
      color: var(--text-dark);
      margin-bottom: 8px;
      line-height: 1.4;
    }
    .recommend-body p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 16px;
    }
    .recommend-meta {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 13px;
      color: var(--text-muted);
      border-top: 1px solid var(--border-light);
      padding-top: 14px;
    }
    .recommend-meta .tag {
      background: rgba(201,160,99,.12);
      color: var(--gold-main);
      font-weight: 600;
      font-size: 12px;
      padding: 3px 10px;
      border-radius: 999px;
    }
    .recommend-meta a {
      margin-left: auto;
      color: var(--gold-main);
      font-weight: 600;
      font-size: 14px;
    }
    .recommend-meta a:hover { gap: 4px; }
    /* ===== FAQ ===== */
    .faq-section { background: var(--bg-cream); padding: 96px 0; }
    .faq-wrap { max-width: 820px; margin: 48px auto 0; }
    .faq-item {
      background: var(--bg-panel);
      border: 1px solid var(--border-light);
      border-radius: var(--radius-card);
      margin-bottom: 14px;
      overflow: hidden;
      transition: all .3s ease;
    }
    .faq-item.is-active {
      border-color: rgba(201,160,99,.45);
      box-shadow: 0 4px 20px rgba(201,160,99,.1);
    }
    .faq-question {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      padding: 22px 26px;
      font-size: 17px;
      font-weight: 600;
      color: var(--text-dark);
      cursor: pointer;
      transition: color .3s ease;
    }
    .faq-question:hover { color: var(--gold-main); }
    .faq-icon {
      width: 28px; height: 28px;
      border-radius: 50%;
      background: rgba(201,160,99,.1);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 16px;
      color: var(--gold-main);
      flex-shrink: 0;
      transition: transform .35s ease, background .3s ease;
    }
    .faq-item.is-active .faq-icon { transform: rotate(45deg); background: var(--gold-main); color: #fff; }
    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height .4s ease, padding .4s ease;
      font-size: 15px;
      line-height: 1.8;
      color: var(--text-muted);
      padding: 0 26px;
    }
    .faq-item.is-active .faq-answer {
      max-height: 300px;
      padding: 0 26px 24px;
    }
    /* ===== CTA ===== */
    .cta-section {
      background: var(--primary-deep);
      padding: 88px 0;
      position: relative;
      overflow: hidden;
    }
    .cta-section::before {
      content: "";
      position: absolute;
      inset: 0;
      background: radial-gradient(circle at 80% 20%, rgba(201,160,99,.15) 0%, transparent 50%),
                  radial-gradient(circle at 20% 80%, rgba(201,160,99,.08) 0%, transparent 40%);
    }
    .cta-banner {
      position: relative;
      text-align: center;
      max-width: 720px;
      margin: 0 auto;
    }
    .cta-banner h2 {
      font-size: 34px;
      font-weight: 700;
      color: #fff;
      line-height: 1.3;
      margin-bottom: 18px;
    }
    .cta-banner p {
      font-size: 16px;
      color: rgba(255,255,255,.7);
      margin-bottom: 36px;
      line-height: 1.8;
    }
    .cta-banner .btn-primary {
      font-size: 16px;
      padding: 16px 44px;
    }
    /* ===== Footer ===== */
    .site-footer { background: var(--footer-bg); color: rgba(255,255,255,.7); }
    .footer-grid { padding: 64px 0 40px; }
    .footer-brand {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 18px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 20px;
    }
    .footer-brand .logo-mark {
      width: 36px; height: 36px;
      border-radius: 8px;
      background: linear-gradient(135deg, var(--gold-main), var(--gold-light));
      color: var(--primary-deep);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 14px;
      font-weight: 800;
    }
    .footer-about {
      font-size: 14px;
      line-height: 1.8;
      color: rgba(255,255,255,.55);
      margin-bottom: 24px;
      max-width: 320px;
    }
    .footer-social {
      display: flex;
      gap: 12px;
    }
    .footer-social a {
      width: 40px; height: 40px;
      border-radius: 10px;
      background: rgba(255,255,255,.06);
      border: 1px solid rgba(255,255,255,.1);
      display: flex;
      align-items: center;
      justify-content: center;
      color: rgba(255,255,255,.7);
      transition: all .3s ease;
    }
    .footer-social a:hover {
      background: var(--gold-main);
      color: var(--primary-deep);
      border-color: var(--gold-main);
      transform: translateY(-2px);
    }
    .footer-col-title {
      font-size: 14px;
      font-weight: 600;
      color: var(--gold-main);
      margin-bottom: 20px;
      letter-spacing: .05em;
      text-transform: uppercase;
    }
    .footer-links {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .footer-links a {
      font-size: 14px;
      color: rgba(255,255,255,.55);
      transition: color .3s ease, padding-left .3s ease;
    }
    .footer-links a:hover { color: #fff; padding-left: 6px; }
    .footer-contact p {
      font-size: 14px;
      color: rgba(255,255,255,.55);
      margin-bottom: 10px;
    }
    .footer-bottom {
      border-top: 1px solid rgba(255,255,255,.08);
      padding: 24px 0;
    }
    .footer-bottom p {
      font-size: 13px;
      color: rgba(255,255,255,.4);
      text-align: center;
    }
    /* ===== Responsive ===== */
    @media (max-width: 1023px) {
      .primary-nav {
        position: fixed;
        top: 72px;
        left: 0; right: 0;
        background: rgba(15,26,24,.98);
        flex-direction: column;
        align-items: flex-start;
        padding: 24px 32px;
        gap: 8px;
        margin: 0;
        transform: translateY(-120%);
        transition: transform .4s ease;
        box-shadow: 0 16px 40px rgba(0,0,0,.3);
        border-bottom: 1px solid rgba(201,160,99,.2);
      }
      .primary-nav.is-open {
        transform: translateY(0);
      }
      .primary-nav a {
        display: block;
        width: 100%;
        padding: 14px 8px;
        font-size: 16px;
        border-bottom: 1px solid rgba(255,255,255,.06);
      }
      .primary-nav a.is-active::after { display: none; }
      .nav-toggle { display: flex; }
      .mega-trigger { display: none; }
      .mega-panel {
        position: fixed;
        top: auto;
        left: 50%;
        right: auto;
        transform: translate(-50%, 20px);
        width: 90%;
        max-width: 640px;
      }
      .mega-panel.is-open { transform: translate(-50%, 0); }
      .category-hero h1 { font-size: 40px; }
      .intro-wrap { grid-template-columns: 1fr; gap: 40px; }
      .scene-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
      .process-steps { grid-template-columns: repeat(2, 1fr); row-gap: 48px; }
      .process-steps::before { display: none; }
      .recommend-grid { grid-template-columns: repeat(2, 1fr); }
      .play-row { grid-template-columns: 1fr; gap: 40px; margin-bottom: 64px; }
      .play-row-reverse .play-image { order: 1; }
      .play-row-reverse .play-text { order: 2; }
    }
    @media (max-width: 640px) {
      .section-pad { padding: 56px 0; }
      .section-title { font-size: 28px; }
      .category-hero { min-height: 540px; }
      .category-hero-content { padding: 120px 24px 80px; }
      .category-hero h1 { font-size: 32px; }
      .category-hero p { font-size: 16px; }
      .hero-actions { flex-direction: column; gap: 12px; }
      .hero-actions .btn { width: 100%; }
      .intro-stats { grid-template-columns: 1fr 1fr; gap: 14px; }
      .stat-num { font-size: 34px; }
      .play-image img { height: 240px; }
      .play-text h3 { font-size: 22px; }
      .scene-grid { grid-template-columns: 1fr; }
      .process-steps { grid-template-columns: 1fr; }
      .recommend-grid { grid-template-columns: 1fr; }
      .faq-question { font-size: 15px; padding: 18px 18px; }
      .faq-answer { padding: 0 18px; }
      .faq-item.is-active .faq-answer { padding: 0 18px 20px; }
      .cta-banner h2 { font-size: 26px; }
      .cta-banner .btn-primary { width: 100%; }
      .footer-grid { padding: 48px 0 24px; row-gap: 32px; }
      .mega-panel-inner { grid-template-columns: 1fr; gap: 20px; }
    }

/* roulang page: article */
:root {
  --primary-deep: #142320;
  --primary-mid: #1E3630;
  --gold-main: #C9A063;
  --gold-light: #E3C890;
  --gold-dark: #A98548;
  --bg-cream: #F7F5EF;
  --text-dark: #1F2825;
  --text-muted: #6B7A74;
  --accent-lime: #8FBF5A;
  --border-light: #E4DFD3;
  --footer-bg: #0F1A18;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --shadow-sm: 0 2px 8px rgba(20,35,32,0.06);
  --shadow-md: 0 8px 24px rgba(20,35,32,0.12);
  --shadow-dark: 0 4px 16px rgba(0,0,0,0.35);
  --transition: 0.3s cubic-bezier(0.2, 0.8, 0.4, 1);
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
  background: var(--bg-cream);
  color: var(--text-dark);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  padding-top: 72px;
}
a {
  text-decoration: none;
  color: inherit;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
ul, ol {
  margin: 0;
  padding: 0;
  list-style: none;
}
button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  text-align: center;
  transition: var(--transition);
  min-height: 46px;
  border: 1px solid transparent;
  white-space: nowrap;
}
.btn:focus, .btn:focus-visible {
  outline: 2px solid var(--gold-light);
  outline-offset: 2px;
}
.btn-primary {
  background: var(--gold-main);
  color: var(--primary-deep);
  border-color: var(--gold-main);
}
.btn-primary:hover {
  background: var(--gold-light);
  border-color: var(--gold-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(201,160,99,0.35);
  color: var(--primary-deep);
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 4px 12px rgba(201,160,99,0.3);
}
.btn-outline {
  background: transparent;
  border-color: var(--border-light);
  color: var(--text-dark);
}
.btn-outline:hover {
  border-color: var(--gold-main);
  color: var(--gold-dark);
  background: rgba(201,160,99,0.06);
}
.btn-ghost {
  background: transparent;
  border-color: rgba(255,255,255,0.5);
  color: #FFFFFF;
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.12);
  border-color: #FFFFFF;
  color: #FFFFFF;
  transform: translateY(-2px);
}
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(20,35,32,0.92);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(201,160,99,0.12);
  transition: background 0.3s ease, box-shadow 0.3s ease;
}
.site-header.is-scrolled {
  background: rgba(15,26,24,0.97);
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}
.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}
.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: #FFFFFF;
  letter-spacing: 0.02em;
  flex-shrink: 0;
}
.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--gold-light), var(--gold-main));
  color: var(--primary-deep);
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.02em;
}
.primary-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-link {
  display: inline-block;
  position: relative;
  color: rgba(255,255,255,0.8);
  font-size: 15px;
  font-weight: 500;
  padding: 8px 0;
  transition: color 0.25s ease;
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--gold-main), var(--gold-light));
  transition: width 0.3s ease;
}
.nav-link:hover, .nav-link:focus {
  color: #FFFFFF;
}
.nav-link:hover::after, .nav-link:focus::after {
  width: 100%;
}
.nav-link.is-active {
  color: var(--gold-light);
  font-weight: 600;
}
.nav-link.is-active::after {
  width: 100%;
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.mega-trigger {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  border-radius: 50px;
  border: 1px solid rgba(201,160,99,0.4);
  color: var(--gold-light);
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition);
  background: rgba(201,160,99,0.08);
}
.mega-trigger:hover {
  background: rgba(201,160,99,0.18);
  border-color: var(--gold-main);
  color: var(--gold-light);
}
.mega-trigger.is-open {
  background: rgba(201,160,99,0.2);
  border-color: var(--gold-main);
  color: var(--gold-light);
}
.mega-arrow {
  display: inline-block;
  transition: transform 0.3s ease;
  font-size: 12px;
}
.mega-trigger.is-open .mega-arrow {
  transform: rotate(180deg);
}
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background: rgba(255,255,255,0.08);
  gap: 5px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background-color: #FFFFFF;
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.nav-toggle.is-active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle.is-active span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.is-active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}
.mega-panel {
  position: absolute;
  top: 100%;
  right: 24px;
  width: 720px;
  max-width: calc(100% - 48px);
  background: var(--bg-cream);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  box-shadow: 0 12px 40px rgba(0,0,0,0.18);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s;
  z-index: 999;
  overflow: hidden;
}
.mega-panel.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.mega-panel-inner {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  padding: 28px;
}
.mega-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.mega-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--gold-dark);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border-light);
  margin-bottom: 4px;
}
.mega-link {
  font-size: 14px;
  color: var(--text-dark);
  padding: 6px 0;
  border-radius: 6px;
  transition: color 0.2s ease, padding-left 0.3s ease;
}
.mega-link:hover {
  color: var(--gold-dark);
  padding-left: 6px;
  background: rgba(201,160,99,0.06);
}
.mega-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}
.breadcrumb-nav {
  padding: 18px 0;
  border-bottom: 1px solid var(--border-light);
  background: var(--bg-cream);
}
.breadcrumb-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  font-size: 14px;
  color: var(--text-muted);
}
.breadcrumb-nav a {
  color: var(--text-muted);
  font-weight: 500;
}
.breadcrumb-nav a:hover {
  color: var(--gold-dark);
}
.breadcrumb-sep {
  margin: 0 10px;
  color: rgba(107,122,116,0.5);
}
.breadcrumb-current {
  color: var(--text-dark);
  font-weight: 500;
}
.article-page-main {
  padding: 48px 0 64px;
}
.article-layout {
  max-width: 860px;
  margin: 0 auto;
}
.article-card {
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  padding: 48px 56px;
  position: relative;
  overflow: hidden;
}
.article-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--gold-main), var(--gold-light), transparent);
}
.article-category-tag {
  display: inline-block;
  padding: 5px 14px;
  background: rgba(201,160,99,0.12);
  color: var(--gold-dark);
  border-radius: 50px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 16px;
}
.article-title {
  font-size: 36px;
  font-weight: 800;
  line-height: 1.3;
  color: var(--text-dark);
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  color: var(--text-muted);
  font-size: 14px;
  margin-bottom: 24px;
}
.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.meta-item i {
  color: var(--gold-main);
}
.article-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold-main), transparent);
  margin-bottom: 32px;
  opacity: 0.4;
}
.article-body {
  font-size: 16px;
  line-height: 1.8;
  letter-spacing: 0.02em;
  color: var(--text-dark);
}
.article-body p {
  margin-bottom: 1.4em;
}
.article-body h2 {
  font-size: 26px;
  font-weight: 700;
  line-height: 1.35;
  margin: 32px 0 16px;
  color: var(--primary-deep);
}
.article-body h3 {
  font-size: 20px;
  font-weight: 600;
  line-height: 1.4;
  margin: 24px 0 12px;
  color: var(--primary-deep);
}
.article-body blockquote {
  border-left: 3px solid var(--gold-main);
  background: rgba(201,160,99,0.06);
  padding: 16px 24px;
  margin: 24px 0;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-muted);
}
.article-body img {
  border-radius: var(--radius-md);
  margin: 24px 0;
}
.article-body ul,
.article-body ol {
  margin: 0 0 1.4em 1.4em;
}
.article-body ul {
  list-style: disc;
}
.article-body ol {
  list-style: decimal;
}
.article-body li {
  margin-bottom: 8px;
}
.not-found-box {
  text-align: center;
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  padding: 80px 40px;
}
.not-found-icon {
  font-size: 56px;
  color: rgba(107,122,116,0.4);
  margin-bottom: 24px;
  display: block;
}
.not-found-title {
  font-size: 30px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 12px;
}
.not-found-box p {
  color: var(--text-muted);
  font-size: 16px;
  margin-bottom: 28px;
}
.article-actions {
  margin-top: 28px;
  display: flex;
  justify-content: center;
}
.related-section {
  background: #FFFFFF;
  padding: 72px 0;
}
.section-header {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: 40px;
}
.section-header h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--text-dark);
  white-space: nowrap;
}
.section-line {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, rgba(201,160,99,0.5), transparent);
}
.related-scroll {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.related-card {
  display: block;
  background: var(--bg-cream);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  overflow: hidden;
  transition: var(--transition);
}
.related-card:hover {
  border-color: rgba(201,160,99,0.4);
  box-shadow: var(--shadow-md);
  transform: translateY(-6px);
}
.related-thumb {
  aspect-ratio: 16 / 9;
  background: var(--primary-deep);
  overflow: hidden;
}
.related-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.related-card:hover .related-thumb img {
  transform: scale(1.05);
}
.related-info {
  padding: 20px 22px;
}
.related-info h3 {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.45;
  color: var(--text-dark);
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 48px;
}
.related-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.card-tag {
  font-size: 12px;
  color: var(--gold-dark);
  background: rgba(201,160,99,0.1);
  padding: 4px 10px;
  border-radius: 50px;
  font-weight: 500;
}
.card-date {
  font-size: 13px;
  color: var(--text-muted);
}
.cta-banner {
  background: var(--primary-deep);
  background-image: radial-gradient(circle at 20% 50%, rgba(201,160,99,0.18) 0%, transparent 40%), radial-gradient(circle at 80% 20%, rgba(201,160,99,0.1) 0%, transparent 30%);
  padding: 72px 24px;
  text-align: center;
}
.cta-inner {
  max-width: 800px;
  margin: 0 auto;
}
.cta-inner h2 {
  font-size: 30px;
  font-weight: 800;
  color: #FFFFFF;
  margin-bottom: 14px;
}
.cta-inner h2 em {
  color: var(--gold-light);
  font-style: normal;
}
.cta-inner p {
  font-size: 16px;
  color: rgba(255,255,255,0.75);
  margin-bottom: 32px;
  line-height: 1.7;
}
.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.site-footer {
  background: var(--footer-bg);
  color: rgba(255,255,255,0.75);
}
.footer-grid {
  padding: 56px 0 40px;
}
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 800;
  color: #FFFFFF;
  margin-bottom: 14px;
}
.footer-brand .logo-mark {
  width: 34px;
  height: 34px;
  font-size: 13px;
}
.footer-about {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255,255,255,0.6);
  margin-bottom: 20px;
  max-width: 360px;
}
.footer-social {
  display: flex;
  gap: 10px;
}
.footer-social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  color: rgba(255,255,255,0.8);
  font-size: 16px;
  transition: var(--transition);
}
.footer-social a:hover {
  background: var(--gold-main);
  color: var(--primary-deep);
  transform: translateY(-3px);
}
.footer-col-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--gold-main);
  margin-bottom: 18px;
  letter-spacing: 0.05em;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links a {
  color: rgba(255,255,255,0.6);
  font-size: 14px;
  transition: color 0.2s ease, padding-left 0.3s ease;
}
.footer-links a:hover {
  color: #FFFFFF;
  padding-left: 4px;
}
.footer-contact p {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  margin-bottom: 8px;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 20px 0;
  text-align: center;
}
.footer-bottom p {
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}
@media (max-width: 1023px) {
  .primary-nav {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
    background: var(--primary-deep);
    padding: 20px 24px;
    gap: 4px;
    box-shadow: 0 12px 24px rgba(0,0,0,0.3);
  }
  .primary-nav.is-open {
    display: flex;
  }
  .nav-link {
    width: 100%;
    padding: 12px 0;
    font-size: 16px;
  }
  .nav-link::after {
    width: 0 !important;
  }
  .nav-link.is-active {
    color: var(--gold-light);
  }
  .nav-toggle {
    display: flex;
  }
  .mega-trigger {
    display: none;
  }
  .mega-panel {
    right: 12px;
    width: calc(100% - 24px);
  }
}
@media (max-width: 767px) {
  .mega-panel-inner {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .article-page-main {
    padding: 24px 0 40px;
  }
  .article-card {
    padding: 28px 20px;
  }
  .article-title {
    font-size: 26px;
  }
  .article-meta {
    gap: 12px;
    font-size: 13px;
  }
  .article-body {
    font-size: 15px;
  }
  .related-section {
    padding: 48px 0;
  }
  .related-scroll {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 8px;
    margin: 0 -24px;
    padding-left: 24px;
    padding-right: 24px;
  }
  .related-card {
    flex: 0 0 82%;
    max-width: 82%;
    scroll-snap-align: start;
  }
  .related-info h3 {
    min-height: auto;
  }
  .section-header h2 {
    font-size: 24px;
  }
  .cta-banner {
    padding: 56px 20px;
  }
  .cta-inner h2 {
    font-size: 24px;
  }
  .cta-buttons .btn {
    width: 100%;
  }
}
@media (max-width: 520px) {
  .nav-container {
    padding: 0 16px;
    gap: 12px;
  }
  .brand-logo {
    font-size: 17px;
  }
  .brand-logo .logo-mark {
    width: 32px;
    height: 32px;
    font-size: 13px;
  }
  .breadcrumb-inner {
    padding: 0 16px;
    font-size: 13px;
  }
  .breadcrumb-sep {
    margin: 0 6px;
  }
  .article-layout {
    max-width: 100%;
  }
  .article-card {
    padding: 24px 16px;
  }
  .not-found-box {
    padding: 48px 20px;
  }
  .not-found-title {
    font-size: 24px;
  }
  .footer-grid {
    padding: 40px 0 24px;
  }
}

/* roulang page: category2 */
:root {
  --primary-deep: #142320;
  --primary-mid: #1E3630;
  --gold-main: #C9A063;
  --gold-light: #E3C890;
  --bg-cream: #F7F5EF;
  --text-dark: #1F2825;
  --text-muted: #6B7A74;
  --accent-lime: #8FBF5A;
  --border-light: #E4DFD3;
  --footer-bg: #0F1A18;
  --radius-card: 12px;
  --radius-btn: 8px;
  --shadow-card: 0 2px 8px rgba(20,35,32,0.06);
  --shadow-hover: 0 8px 24px rgba(20,35,32,0.12);
  --transition: 0.3s cubic-bezier(0.2, 0.8, 0.4, 1);
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-dark);
  background: var(--bg-cream);
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
}
a {
  text-decoration: none;
  color: var(--text-dark);
  transition: color 0.25s ease;
}
button {
  border: 0;
  background: none;
  cursor: pointer;
  font-family: inherit;
}
.container-custom {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(20, 35, 32, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(201, 160, 99, 0.15);
  transition: background 0.3s ease, box-shadow 0.3s ease;
}
.site-header.is-scrolled {
  background: rgba(15, 26, 24, 0.97);
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}
.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  letter-spacing: 0.02em;
  white-space: nowrap;
  transition: opacity 0.3s ease;
}
.brand-logo:hover {
  color: var(--gold-light);
}
.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--gold-main), var(--gold-light));
  color: var(--primary-deep);
  font-size: 14px;
  font-weight: 800;
  border-radius: 8px;
  letter-spacing: 0;
  flex-shrink: 0;
}
.primary-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
  margin-right: 24px;
}
.nav-link {
  padding: 8px 16px;
  color: rgba(255,255,255,0.86);
  font-size: 15px;
  font-weight: 500;
  border-radius: 6px;
  position: relative;
  transition: color 0.3s ease, background 0.3s ease;
}
.nav-link:hover {
  color: var(--gold-light);
  background: rgba(201, 160, 99, 0.08);
}
.nav-link.is-active {
  color: var(--gold-main);
  font-weight: 600;
}
.nav-link.is-active::after {
  content: '';
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 2px;
  height: 2px;
  background: linear-gradient(90deg, var(--gold-main), var(--gold-light));
  border-radius: 2px;
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.mega-trigger {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 8px;
  border: 1px solid rgba(201, 160, 99, 0.3);
  color: rgba(255,255,255,0.9);
  font-size: 14px;
  font-weight: 500;
  background: rgba(201, 160, 99, 0.05);
  transition: all 0.3s ease;
}
.mega-trigger:hover,
.mega-trigger.is-open {
  color: var(--gold-light);
  border-color: rgba(201, 160, 99, 0.6);
  background: rgba(201, 160, 99, 0.1);
}
.mega-trigger .mega-arrow {
  display: inline-block;
  transition: transform 0.3s ease;
  font-size: 12px;
}
.mega-trigger.is-open .mega-arrow {
  transform: rotate(180deg);
}
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  border-radius: 8px;
  padding: 8px;
  background: rgba(255,255,255,0.08);
}
.nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: #fff;
  border-radius: 2px;
  transition: all 0.3s ease;
}
.nav-toggle.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle.is-open span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}
.mega-panel {
  display: none;
  position: fixed;
  top: 72px;
  right: 24px;
  width: 720px;
  max-width: calc(100vw - 48px);
  background: var(--bg-cream);
  border-radius: 16px;
  border: 1px solid var(--border-light);
  box-shadow: 0 12px 40px rgba(0,0,0,0.18);
  padding: 28px;
  z-index: 999;
  transition: display 0.3s ease;
}
.mega-panel.is-open {
  display: block;
}
.mega-panel-inner {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 24px;
}
.mega-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px;
  background: #fff;
  border-radius: var(--radius-card);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-card);
}
.mega-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--gold-main);
  margin-bottom: 4px;
  letter-spacing: 0.04em;
}
.mega-link {
  font-size: 14px;
  color: var(--text-dark);
  padding: 4px 0;
  font-weight: 500;
  transition: color 0.2s ease, transform 0.2s ease;
}
.mega-link:hover {
  color: var(--gold-main);
  transform: translateX(4px);
}
.mega-desc {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-muted);
}
.hero-section {
  position: relative;
  min-height: 620px;
  display: flex;
  align-items: center;
  padding: 140px 0 80px;
  background: linear-gradient(to right, rgba(15,26,24,0.9), rgba(15,26,24,0.6)), url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  color: #fff;
  overflow: hidden;
}
.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(201,160,99,0.15), transparent 60%);
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 760px;
  animation: fadeUp 0.8s ease both;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
  color: var(--gold-light);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.05em;
}
.hero-eyebrow::before {
  content: '';
  width: 32px;
  height: 1px;
  background: var(--gold-main);
}
.hero-section h1 {
  font-size: clamp(32px, 5vw, 56px);
  line-height: 1.15;
  font-weight: 800;
  color: #fff;
  margin-bottom: 20px;
  letter-spacing: 0.01em;
}
.hero-section .hero-desc {
  font-size: 18px;
  line-height: 1.7;
  color: rgba(255,255,255,0.8);
  margin-bottom: 36px;
  max-width: 640px;
}
.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}
.btn-primary {
  display: inline-block;
  padding: 14px 32px;
  background: linear-gradient(135deg, var(--gold-main), var(--gold-light));
  color: var(--primary-deep);
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-btn);
  transition: all 0.3s cubic-bezier(0.2, 0.8, 0.4, 1);
  border: 1px solid transparent;
  box-shadow: 0 4px 14px rgba(201, 160, 99, 0.3);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(201, 160, 99, 0.45);
  background: linear-gradient(135deg, var(--gold-light), #f0dbb0);
  color: var(--primary-deep);
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(201, 160, 99, 0.3);
}
.btn-primary:focus-visible {
  outline: 2px solid var(--gold-main);
  outline-offset: 2px;
}
.btn-secondary {
  display: inline-block;
  padding: 13px 30px;
  background: transparent;
  border: 1px solid rgba(255,255,255,0.5);
  color: #fff;
  font-size: 15px;
  font-weight: 500;
  border-radius: var(--radius-btn);
  transition: all 0.3s ease;
}
.btn-secondary:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--gold-light);
  color: var(--gold-light);
}
.btn-secondary:focus-visible {
  outline: 2px solid var(--gold-light);
  outline-offset: 2px;
}
.section-pad {
  padding: 100px 0;
}
.section-pad-sm {
  padding: 60px 0;
}
.section-head {
  text-align: center;
  margin-bottom: 56px;
}
.section-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  color: var(--gold-main);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section-head h2 {
  font-size: clamp(26px, 3.5vw, 36px);
  font-weight: 700;
  line-height: 1.25;
  color: var(--text-dark);
  margin-bottom: 16px;
}
.section-head p {
  max-width: 720px;
  margin: 0 auto;
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.8;
}
.section-divider {
  width: 40px;
  height: 2px;
  background: linear-gradient(90deg, var(--gold-main), var(--gold-light));
  margin: 0 auto;
}
.bg-light {
  background: #fff;
}
.card {
  background: #fff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  padding: 28px;
  transition: transform 0.35s ease, box-shadow 0.35s ease;
  position: relative;
  overflow: hidden;
}
.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--gold-main), var(--gold-light));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s ease;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.card:hover::before {
  transform: scaleX(1);
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(201, 160, 99, 0.1);
  color: var(--gold-main);
  margin-bottom: 20px;
  font-size: 20px;
}
.feature-card h3 {
  font-size: 20px;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 12px;
  color: var(--text-dark);
}
.feature-card p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.link-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--gold-main);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: gap 0.3s ease;
}
.link-more:hover {
  gap: 10px;
  color: var(--primary-mid);
}
.steps-section {
  background: var(--primary-deep);
  color: #fff;
}
.steps-section .section-head h2 {
  color: #fff;
}
.steps-section .section-head p {
  color: rgba(255,255,255,0.7);
}
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  counter-reset: step-counter;
}
.step-card {
  position: relative;
  padding: 32px 24px 24px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(201, 160, 99, 0.2);
  border-radius: var(--radius-card);
  text-align: center;
  transition: all 0.4s ease;
  counter-increment: step-counter;
}
.step-card:hover {
  background: rgba(201, 160, 99, 0.08);
  border-color: rgba(201, 160, 99, 0.5);
  transform: translateY(-4px);
}
.step-card::before {
  content: counter(step-counter, decimal-leading-zero);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--gold-main), var(--gold-light));
  color: var(--primary-deep);
  font-size: 16px;
  font-weight: 800;
  margin-bottom: 20px;
  font-variant-numeric: tabular-nums;
}
.step-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 10px;
}
.step-card p {
  font-size: 14px;
  line-height: 1.6;
  color: rgba(255,255,255,0.7);
}
.scene-section {
  background: #fff;
}
.scene-grid {
  display: flex;
  flex-direction: column;
  gap: 48px;
}
.scene-row {
  display: flex;
  align-items: center;
  gap: 60px;
}
.scene-row:nth-child(even) {
  flex-direction: row-reverse;
}
.scene-image {
  flex: 0 0 42%;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(201,160,99,0.3);
  box-shadow: var(--shadow-card);
  background: var(--primary-deep);
  min-height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.scene-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.scene-row:hover .scene-image img {
  transform: scale(1.03);
}
.scene-content {
  flex: 1;
}
.scene-content h3 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 16px;
  line-height: 1.4;
}
.scene-content p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.scene-list {
  list-style: none;
  padding: 0;
}
.scene-list li {
  position: relative;
  padding-left: 28px;
  margin-bottom: 10px;
  font-size: 15px;
  color: var(--text-dark);
  line-height: 1.6;
}
.scene-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold-main);
  box-shadow: 0 0 0 3px rgba(201,160,99,0.15);
}
.data-section {
  background: linear-gradient(135deg, var(--primary-mid), var(--primary-deep));
  color: #fff;
  position: relative;
  overflow: hidden;
}
.data-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(201,160,99,0.12), transparent 70%);
  border-radius: 50%;
}
.data-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  text-align: center;
}
.data-item h3 {
  font-size: 48px;
  font-weight: 800;
  color: var(--gold-main);
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
  margin-bottom: 8px;
}
.data-item p {
  font-size: 15px;
  color: rgba(255,255,255,0.7);
  letter-spacing: 0.03em;
}
.cta-section {
  background: linear-gradient(135deg, rgba(201,160,99,0.08), rgba(201,160,99,0.03)), var(--primary-deep);
  color: #fff;
  text-align: center;
  padding: 90px 0;
  position: relative;
  overflow: hidden;
}
.cta-section h2 {
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 700;
  margin-bottom: 16px;
  color: #fff;
}
.cta-section p {
  font-size: 16px;
  color: rgba(255,255,255,0.7);
  max-width: 560px;
  margin: 0 auto 32px;
  line-height: 1.8;
}
.guide-card-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.guide-card {
  background: #fff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform 0.3s, box-shadow 0.3s;
}
.guide-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.guide-card-image {
  height: 180px;
  overflow: hidden;
  background: var(--primary-mid);
  display: flex;
  align-items: center;
  justify-content: center;
}
.guide-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.guide-card:hover .guide-card-image img {
  transform: scale(1.04);
}
.guide-card-body {
  padding: 24px;
}
.guide-card-body h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 10px;
  line-height: 1.5;
}
.guide-card-body p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-muted);
  margin-bottom: 14px;
}
.guide-tag {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(201, 160, 99, 0.1);
  color: var(--gold-main);
  font-size: 12px;
  font-weight: 600;
  border-radius: 20px;
}
.faq-section {
  background: var(--bg-cream);
}
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}
.faq-item {
  border-bottom: 1px solid var(--border-light);
  padding: 20px 0;
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  text-align: left;
  font-size: 18px;
  font-weight: 600;
  color: var(--text-dark);
  padding: 12px 0;
  background: none;
  border: none;
  cursor: pointer;
  transition: color 0.3s;
}
.faq-question:hover {
  color: var(--gold-main);
}
.faq-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  font-size: 22px;
  color: var(--gold-main);
  transition: transform 0.4s ease;
  font-weight: 300;
  flex-shrink: 0;
}
.faq-item.is-open .faq-toggle {
  transform: rotate(45deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}
.faq-answer-inner {
  padding: 0 0 12px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-muted);
}
.faq-item.is-open .faq-answer {
  max-height: 500px;
}
.cta-banner {
  background: linear-gradient(135deg, var(--primary-deep) 0%, var(--primary-mid) 100%);
  padding: 72px 0;
  color: #fff;
  position: relative;
  background-image: radial-gradient(circle at 20% 80%, rgba(201,160,99,0.1) 0%, transparent 50%);
}
.cta-banner-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
}
.cta-banner h2 {
  font-size: 28px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}
.cta-banner p {
  color: rgba(255,255,255,0.7);
  font-size: 15px;
}
.site-footer {
  background: var(--footer-bg);
  color: rgba(255,255,255,0.7);
  padding-top: 72px;
}
.footer-grid {
  gap: 40px;
  margin-bottom: 48px;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}
.footer-about {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255,255,255,0.6);
  margin-bottom: 20px;
  max-width: 320px;
}
.footer-social {
  display: flex;
  gap: 12px;
}
.footer-social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  color: rgba(255,255,255,0.7);
  font-size: 15px;
  transition: all 0.3s ease;
}
.footer-social a:hover {
  background: var(--gold-main);
  color: var(--primary-deep);
  transform: translateY(-2px);
}
.footer-col-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--gold-main);
  margin-bottom: 18px;
  letter-spacing: 0.03em;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links a {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  transition: color 0.3s ease, padding-left 0.3s ease;
}
.footer-links a:hover {
  color: var(--gold-light);
  padding-left: 4px;
}
.footer-contact p {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  margin-bottom: 8px;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 24px 0;
  text-align: center;
}
.footer-bottom p {
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@media (max-width: 1023px) {
  .primary-nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(15,26,24,0.98);
    flex-direction: column;
    align-items: flex-start;
    padding: 16px 24px;
    gap: 4px;
    transform: translateY(-100%);
    transition: transform 0.4s ease;
    border-bottom: 1px solid rgba(201,160,99,0.2);
  }
  .primary-nav.is-open {
    transform: translateY(0);
  }
  .nav-link {
    width: 100%;
    padding: 12px 16px;
    font-size: 16px;
  }
  .nav-link.is-active::after {
    left: 16px;
    right: auto;
    width: 40px;
  }
  .nav-link.is-active {
    color: var(--gold-light);
  }
  .nav-toggle {
    display: flex;
  }
  .mega-trigger {
    display: none;
  }
  .mega-panel {
    display: none !important;
  }
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .scene-row, .scene-row:nth-child(even) {
    flex-direction: column;
    gap: 24px;
  }
  .scene-image {
    flex: 1 1 auto;
    width: 100%;
    min-height: 220px;
  }
  .guide-card-list {
    grid-template-columns: repeat(2, 1fr);
  }
  .data-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }
}
@media (max-width: 640px) {
  .hero-section {
    min-height: 540px;
    padding: 120px 0 60px;
  }
  .hero-section .hero-desc {
    font-size: 16px;
  }
  .hero-buttons {
    flex-direction: column;
    align-items: stretch;
  }
  .btn-primary, .btn-secondary {
    text-align: center;
  }
  .feature-grid,
  .steps-grid,
  .guide-card-list,
  .data-grid {
    grid-template-columns: 1fr;
  }
  .data-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .data-item h3 {
    font-size: 32px;
  }
  .data-item p {
    font-size: 13px;
  }
  .section-pad {
    padding: 60px 0;
  }
  .mega-panel {
    right: 16px;
    max-width: calc(100vw - 32px);
  }
  .brand-logo {
    font-size: 17px;
  }
  .logo-mark {
    width: 32px;
    height: 32px;
    font-size: 12px;
  }
  .cta-banner-inner {
    flex-direction: column;
    text-align: center;
  }
  .faq-question {
    font-size: 16px;
  }
}