/* roulang page: index */
/* ===================== 设计变量 ===================== */
:root {
  --primary: #0A1B2F;
  --primary-light: #143252;
  --accent: #19F0B8;
  --accent-deep: #0DBE8F;
  --bg: #050D17;
  --bg-soft: #071220;
  --glass: rgba(255,255,255,0.055);
  --glass-strong: rgba(255,255,255,0.09);
  --stroke: rgba(255,255,255,0.14);
  --stroke-bright: rgba(255,255,255,0.3);
  --text: #F0F7FC;
  --text-muted: #93A7BF;
  --radius-card: 16px;
  --radius-btn: 28px;
  --radius-pill: 999px;
  --radius-img: 12px;
  --shadow-card: 0 8px 32px rgba(0,0,0,0.35);
  --shadow-card-hover: 0 14px 44px rgba(0,0,0,0.45);
  --glow: 0 0 16px rgba(25,240,184,0.4);
  --glow-strong: 0 0 28px rgba(25,240,184,0.65);
  --transition: all 0.3s ease;
  --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
}

/* ===================== 基础 ===================== */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-family);
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration: none; transition: color 0.3s ease; }
a:hover { color: var(--accent); }
ul { list-style: none; }
button { font-family: var(--font-family); }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section-padding { padding: 100px 0; }
.text-center { text-align: center; }
.glass-card {
  background: rgba(255,255,255,0.055);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 16px;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.35);
}

/* ===================== 按钮 ===================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, #19F0B8, #0DBE8F);
  color: #04231A;
  box-shadow: 0 0 16px rgba(25,240,184,0.4);
}
.btn-primary:hover, .btn-primary:focus {
  color: #04231A;
  transform: translateY(-2px);
  box-shadow: 0 0 28px rgba(25,240,184,0.65);
}
.btn-primary:focus { outline: 2px solid rgba(25,240,184,0.6); outline-offset: 3px; }
.btn-ghost {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.18);
  color: var(--text);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.btn-ghost:hover, .btn-ghost:focus {
  color: var(--accent);
  border-color: rgba(25,240,184,0.6);
  box-shadow: 0 0 18px rgba(25,240,184,0.18);
  transform: translateY(-2px);
}
.btn-lg { padding: 16px 36px; font-size: 17px; }
.btn-xl { padding: 18px 44px; font-size: 18px; border-radius: 32px; }

/* ===================== 导航 ===================== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 14px 0;
  background: rgba(5, 13, 23, 0.42);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  transition: background 0.3s ease, box-shadow 0.3s ease, padding 0.3s ease;
}
.site-header.scrolled {
  background: rgba(5, 13, 23, 0.96);
  box-shadow: 0 10px 35px rgba(0,0,0,0.45);
  padding: 8px 0;
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.2px;
  flex-shrink: 0;
  white-space: nowrap;
}
.brand i { color: var(--accent); font-size: 24px; }
.brand:hover { color: var(--text); }
.brand-short { display: none; }

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}
.main-nav ul {
  display: flex;
  list-style: none;
  gap: 26px;
  align-items: center;
  margin: 0;
}
.main-nav ul li { margin: 0; }
.main-nav ul li a {
  color: var(--text-muted);
  font-size: 15px;
  font-weight: 500;
  position: relative;
  padding: 6px 2px;
  transition: color 0.3s ease;
  display: block;
}
.main-nav ul li a:hover {
  color: var(--text);
}
.main-nav ul li a.active {
  color: var(--text);
}
.main-nav ul li a.active::after {
  content: "";
  position: absolute;
  bottom: 0; left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  box-shadow: 0 0 8px var(--accent);
}
.nav-actions { display: flex; align-items: center; gap: 14px; }
.search-toggle {
  width: 40px; height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.14);
  background: rgba(255,255,255,0.06);
  color: var(--text);
  cursor: pointer;
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.search-toggle:hover { border-color: var(--accent); color: var(--accent); }
.mobile-toggle {
  display: none;
  width: 40px; height: 40px;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,0.14);
  background: rgba(255,255,255,0.06);
  color: var(--text);
  cursor: pointer;
  font-size: 18px;
  transition: all 0.3s ease;
  align-items: center;
  justify-content: center;
}
.mobile-toggle:hover { border-color: var(--accent); color: var(--accent); }
.mobile-toggle.active { border-color: var(--accent); color: var(--accent); }

/* ===================== Hero ===================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 140px 0 80px;
  background:
    linear-gradient(135deg, rgba(5,13,23,0.72) 10%, rgba(10,27,47,0.55) 60%, rgba(5,13,23,0.78) 100%),
    url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
}
.hero::before {
  content: "";
  position: absolute;
  top: 18%;
  left: 50%;
  transform: translateX(-50%);
  width: 520px;
  height: 520px;
  background: radial-gradient(circle, rgba(25,240,184,0.12), transparent 60%);
  pointer-events: none;
}
.hero-content { width: 100%; position: relative; z-index: 2; }
.hero-eyebrow {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 3px;
  color: var(--text-muted);
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.14);
  padding: 8px 20px;
  border-radius: 999px;
  margin-bottom: 28px;
  backdrop-filter: blur(10px);
}
.hero-title {
  font-size: clamp(34px, 5vw, 56px);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 18px;
  color: var(--text);
}
.hero-gradient {
  background: linear-gradient(90deg, var(--accent), #8EF0DA);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-subtitle {
  font-size: clamp(16px, 2vw, 20px);
  color: var(--text-muted);
  margin-bottom: 36px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.hero-stats {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-top: 64px;
  padding: 24px 32px;
  background: rgba(255,255,255,0.055);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 16px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.35);
  flex-wrap: wrap;
}
.stat-item { min-width: 120px; }
.stat-num {
  font-size: 28px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1.2;
}
.stat-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ===================== 板块标题 ===================== */
.section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--accent);
  background: rgba(25,240,184,0.1);
  border: 1px solid rgba(25,240,184,0.22);
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 16px;
}
.section-title {
  font-size: clamp(28px, 3.2vw, 40px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--text);
  margin-bottom: 14px;
}
.section-subtitle {
  font-size: 16px;
  color: var(--text-muted);
  max-width: 600px;
  margin-top: 12px;
}
.section-head.text-center .section-subtitle { margin-left: auto; margin-right: auto; }
.section-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
  margin-bottom: 40px;
}
.text-link {
  color: var(--accent);
  font-size: 14px;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.3s ease;
}
.text-link:hover { gap: 10px; color: var(--accent); }

/* ===================== 品牌故事 ===================== */
.brand-section {
  background: linear-gradient(180deg, var(--bg), var(--primary-light));
}
.brand-visual {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--stroke);
  box-shadow: var(--shadow-card);
}
.brand-visual img { width: 100%; height: 420px; object-fit: cover; }
.brand-visual .visual-card {
  position: absolute;
  left: 20px;
  bottom: 20px;
  padding: 12px 18px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text);
}
.brand-copy { padding-left: 36px; }
.brand-copy p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 14px;
}
.brand-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}
.brand-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(25,240,184,0.1);
  border: 1px solid rgba(25,240,184,0.22);
  color: var(--accent);
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
}

/* ===================== 特色卡片 ===================== */
.feature-section { background: var(--bg); }
.feature-section + .feature-section,
.feature-section:nth-of-type(2) { background: var(--bg); }
.feature-card {
  position: relative;
  background: rgba(255,255,255,0.055);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.35);
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
  height: 100%;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  overflow: hidden;
}
.feature-card:hover {
  transform: translateY(-4px);
  border-color: rgba(25,240,184,0.3);
  box-shadow: 0 14px 44px rgba(0,0,0,0.45);
}
.feature-card-large .card-img {
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 20px;
}
.feature-card-large .card-img img {
  width: 100%;
  height: 230px;
  object-fit: cover;
  object-position: center;
}
.card-ico {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(25,240,184,0.12);
  color: var(--accent);
  font-size: 16px;
  border-radius: 10px;
  margin-bottom: 16px;
  box-shadow: 0 0 12px rgba(25,240,184,0.12);
}
.card-body h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.4;
  margin-bottom: 8px;
}
.card-body p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 8px;
}
.side-stack {
  display: flex;
  flex-direction: column;
  gap: 16px;
  height: 100%;
}
.feature-card-wide .card-body {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}
.feature-card-wide .wide-content { flex: 1; min-width: 240px; }

/* ===================== 最新资讯 ===================== */
.news-section { background: var(--bg-soft); }
.news-grid { row-gap: 16px; }
.news-card {
  display: flex;
  align-items: stretch;
  height: 100%;
  background: rgba(255,255,255,0.055);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0,0,0,0.35);
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
  margin-bottom: 16px;
}
.news-card:hover {
  transform: translateY(-3px);
  border-color: rgba(25,240,184,0.28);
  box-shadow: 0 14px 44px rgba(0,0,0,0.45);
}
.news-thumb {
  width: 120px;
  min-width: 120px;
  overflow: hidden;
  background: var(--primary-light);
}
.news-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
.news-body {
  padding: 16px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  flex: 1;
}
.news-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}
.news-badge {
  background: rgba(25,240,184,0.14);
  color: var(--accent);
  font-size: 12px;
  padding: 4px 12px;
  border-radius: 999px;
  display: inline-block;
}
.news-time { font-size: 12px; color: var(--text-muted); }
.news-title {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 8px;
}
.news-title a { color: var(--text); transition: color 0.3s ease; }
.news-title a:hover { color: var(--accent); }
.news-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-more {
  font-size: 13px;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.3s ease;
}
.news-more:hover { gap: 10px; }
.no-posts {
  text-align: center;
  padding: 48px 0;
  color: var(--text-muted);
  font-size: 14px;
}

/* ===================== 信任背书 ===================== */
.community-section {
  background: linear-gradient(180deg, var(--bg), var(--primary-light));
}
.community-quote {
  font-size: clamp(28px, 3.6vw, 40px);
  font-weight: 700;
  line-height: 1.35;
  color: var(--text);
  margin-bottom: 44px;
}
.community-quote .highlight {
  color: var(--accent);
}
.community-trust-row {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 48px;
}
.integ-item {
  padding: 12px 24px;
  border-radius: 999px;
  font-size: 14px;
  color: rgba(240,247,252,0.75);
  background: rgba(255,255,255,0.055);
  border: 1px solid rgba(255,255,255,0.14);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.testimonial-card {
  max-width: 760px;
  margin: 0 auto;
  padding: 40px 48px;
  text-align: center;
}
.testimonial-icon {
  color: var(--accent);
  font-size: 30px;
  margin-bottom: 16px;
  opacity: 0.8;
}
.testimonial-text {
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  margin-bottom: 16px;
}
.testimonial-author {
  font-size: 14px;
  color: var(--text-muted);
}

/* ===================== FAQ ===================== */
.faq-section { background: var(--bg-soft); }
.faq-container { max-width: 780px; margin: 0 auto; }
.faq-item {
  background: rgba(255,255,255,0.055);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 16px;
  padding: 20px 24px;
  margin-bottom: 16px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.faq-item[open] {
  border-color: rgba(25,240,184,0.4);
  box-shadow: 0 8px 32px rgba(0,0,0,0.35);
}
.faq-item summary {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  list-style: none;
  user-select: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  font-size: 24px;
  font-weight: 400;
  color: var(--accent);
  transition: transform 0.3s ease;
  line-height: 1;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p {
  margin-top: 14px;
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.75;
}

/* ===================== CTA ===================== */
.cta-section {
  padding: 110px 0;
  background: linear-gradient(180deg, var(--primary-light), var(--bg));
  position: relative;
}
.cta-section::before {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 300px;
  background: radial-gradient(ellipse, rgba(25,240,184,0.08), transparent 60%);
  pointer-events: none;
}
.cta-card {
  position: relative;
  max-width: 860px;
  margin: 0 auto;
  padding: 64px 48px;
  border-radius: 24px;
  text-align: center;
  background: rgba(10, 27, 47, 0.75);
  border: 1px solid rgba(255,255,255,0.14);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.35);
  overflow: hidden;
}
.cta-glow {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 420px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  box-shadow: 0 0 28px var(--accent);
}
.cta-title {
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 700;
  line-height: 1.35;
  color: var(--text);
  margin-bottom: 16px;
}
.cta-subtitle {
  font-size: 16px;
  color: var(--text-muted);
  margin-bottom: 32px;
}
.cta-actions { margin-bottom: 16px; }
.cta-note {
  font-size: 12px;
  color: rgba(147,167,191,0.8);
}
.qr-placeholder {
  margin: 32px auto 0;
  width: 120px;
  height: 120px;
  border: 1px dashed rgba(255,255,255,0.28);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
  background: rgba(255,255,255,0.04);
  transition: border-color 0.3s ease;
}
.qr-placeholder:hover { border-color: var(--accent); }
.qr-placeholder i { font-size: 40px; color: var(--accent); opacity: 0.8; }

/* ===================== 页脚 ===================== */
.site-footer {
  background: #030810;
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 64px 0 0;
}
.footer-brand { margin-bottom: 24px; }
.footer-brand-logo {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
}
.footer-brand-logo i { color: var(--accent); }
.footer-brand p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 320px;
}
.site-footer h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 18px;
}
.site-footer ul { list-style: none; }
.site-footer ul li { margin-bottom: 10px; }
.site-footer ul a {
  color: var(--text-muted);
  font-size: 14px;
  transition: color 0.3s ease;
}
.site-footer ul a:hover { color: var(--accent); }
.footer-bottom {
  margin-top: 48px;
  padding: 20px 0;
  border-top: 1px solid rgba(255,255,255,0.06);
  text-align: center;
  font-size: 13px;
  color: rgba(147,167,191,0.7);
}

/* ===================== 响应式 ===================== */
@media (max-width: 1023px) {
  .section-padding { padding: 72px 0; }
  .hero { padding-top: 110px; }
  .brand-copy { padding-left: 0; margin-top: 28px; }
  .brand-visual img { height: 350px; }
  .main-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(5, 13, 23, 0.97);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
    padding: 80px 24px 28px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
    transform: translateY(-110%);
    transition: transform 0.35s ease;
    z-index: -1;
  }
  .main-nav.open { transform: translateY(0); }
  .main-nav ul {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    width: 100%;
  }
  .main-nav ul li { width: 100%; }
  .main-nav ul li a { padding: 10px 0; font-size: 16px; display: block; }
  .nav-actions { width: 100%; justify-content: space-between; border-top: 1px solid rgba(255,255,255,0.08); padding-top: 16px; }
  .nav-cta { display: none; }
  .mobile-toggle { display: inline-flex; }
}
@media (max-width: 767px) {
  .section-padding { padding: 56px 0; }
  .header-inner { padding: 0 4px; }
  .brand-full { display: none; }
  .brand-short { display: inline; }
  .brand { font-size: 17px; }
  .hero { padding: 96px 0 64px; }
  .hero-title { font-size: 28px; line-height: 1.35; }
  .hero-subtitle { font-size: 15px; margin-bottom: 28px; }
  .hero-actions { flex-direction: column; gap: 12px; }
  .hero-actions .btn { width: 100%; padding: 15px 24px; }
  .hero-stats {
    margin-top: 40px;
    padding: 20px 16px;
    gap: 16px;
  }
  .stat-item { min-width: 100px; }
  .stat-num { font-size: 22px; }
  .stat-label { font-size: 12px; }
  .section-head { margin-bottom: 28px; }
  .section-row { margin-bottom: 24px; }
  .brand-visual img { height: 240px; }
  .brand-visual .visual-card { left: 14px; bottom: 14px; font-size: 12px; padding: 10px 14px; }
  .feature-card { padding: 18px; }
  .feature-card-large .card-img img { height: 180px; }
  .news-card {
    flex-direction: column;
    margin-bottom: 12px;
  }
  .news-thumb {
    width: 100%;
    min-width: 0;
    height: 180px;
  }
  .news-thumb img { width: 100%; height: 100%; }
  .news-body { padding: 14px; }
  .news-title { font-size: 17px; }
  .community-quote { margin-bottom: 32px; }
  .community-trust-row { gap: 10px; margin-bottom: 32px; }
  .integ-item { padding: 10px 18px; font-size: 13px; }
  .testimonial-card { padding: 28px 20px; }
  .faq-item { padding: 16px 18px; }
  .cta-section { padding: 72px 0; }
  .cta-card { padding: 40px 20px; border-radius: 20px; }
  .cta-title br { display: none; }
  .cta-actions .btn { width: 100%; }
  .site-footer { padding: 48px 0 0; }
  .site-footer .cell { margin-bottom: 28px; }
  .footer-bottom { margin-top: 24px; }
}

/* roulang page: category1 */
:root {
  --primary: #0A1B2F;
  --primary-light: #143252;
  --accent: #19F0B8;
  --accent-deep: #0DBE8F;
  --bg: #050D17;
  --glass: rgba(255,255,255,0.055);
  --glass-2: rgba(255,255,255,0.08);
  --stroke: rgba(255,255,255,0.14);
  --text: #F0F7FC;
  --text-muted: #93A7BF;
  --radius: 16px;
  --radius-sm: 12px;
  --radius-pill: 999px;
  --shadow: 0 8px 32px rgba(0,0,0,0.35);
  --shadow-glow: 0 0 16px rgba(25,240,184,0.4);
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, sans-serif;
}
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color .3s ease; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
h1, h2, h3, h4 { font-weight: 700; line-height: 1.3; letter-spacing: -0.01em; }
p { margin: 0; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: clamp(56px, 8vw, 100px) 0; }
.section-alt { background: linear-gradient(180deg, rgba(10,27,47,0.35) 0%, rgba(5,13,23,0) 100%); }

.section-heading { margin-bottom: 44px; }
.section-heading.centered { text-align: center; }
.section-heading .eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(25,240,184,0.12);
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: 14px;
}
.section-heading h2 { font-size: clamp(26px, 3vw, 34px); margin: 0 0 10px; }
.section-heading p { color: var(--text-muted); max-width: 620px; }
.section-heading.centered p { margin: 0 auto; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 24px;
  height: 42px;
  border-radius: var(--radius-pill);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  border: 0;
  cursor: pointer;
  transition: all .3s ease;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, #19F0B8, #0DBE8F);
  color: #0A1B2F;
  box-shadow: 0 0 16px rgba(25,240,184,0.4);
}
.btn-primary:hover {
  box-shadow: 0 0 28px rgba(25,240,184,0.6);
  transform: translateY(-2px);
  color: #0A1B2F;
}
.btn-primary:active { transform: translateY(0); box-shadow: 0 0 12px rgba(25,240,184,0.3); }
.btn-ghost {
  background: var(--glass);
  color: var(--text);
  border: 1px solid var(--stroke);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.btn-ghost:hover {
  border-color: rgba(255,255,255,0.3);
  background: rgba(255,255,255,0.1);
  transform: translateY(-2px);
  color: #fff;
}
.btn-lg { height: 48px; padding: 0 32px; font-size: 16px; }
.btn-sm { height: 32px; padding: 0 16px; font-size: 13px; border-radius: var(--radius-pill); }

.pill {
  display: inline-block;
  padding: 6px 16px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  background: var(--glass);
  border: 1px solid var(--stroke);
  border-radius: var(--radius-pill);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  margin: 0 6px 6px 0;
}
.card-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  background: rgba(25,240,184,0.1);
  border: 1px solid rgba(25,240,184,0.25);
  padding: 3px 12px;
  border-radius: var(--radius-pill);
}

/* ===== Header / Nav ===== */
.site-header {
  position: fixed;
  top: 0; left: 0; width: 100%;
  z-index: 1000;
  background: rgba(5,13,23,0.35);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  box-shadow: 0 4px 24px rgba(0,0,0,0.25);
  transition: background .4s ease, box-shadow .4s ease, border-color .4s ease;
}
.site-header.scrolled {
  background: rgba(5,13,23,0.92);
  box-shadow: 0 8px 32px rgba(0,0,0,0.5);
  border-color: rgba(255,255,255,0.1);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}
.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  flex-shrink: 0;
  letter-spacing: .02em;
}
.brand-logo i {
  color: var(--accent);
  font-size: 24px;
  filter: drop-shadow(0 0 8px rgba(25,240,184,0.5));
}
.main-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex: 1;
  gap: 20px;
}
.main-nav ul {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 0;
}
.main-nav ul li { padding: 0; margin: 0; }
.main-nav ul li a {
  display: block;
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-muted);
  border-radius: var(--radius-pill);
  position: relative;
  transition: color .3s ease, background .3s ease;
}
.main-nav ul li a:hover { color: var(--text); background: rgba(255,255,255,0.06); }
.main-nav ul li a.active {
  color: var(--accent);
  background: rgba(25,240,184,0.08);
}
.main-nav ul li a.active::after {
  content: '';
  position: absolute;
  left: 16px; right: 16px; bottom: 2px;
  height: 2px;
  border-radius: 2px;
  background: var(--accent);
  box-shadow: 0 0 8px rgba(25,240,184,0.6);
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.search-toggle {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: var(--text-muted);
  font-size: 16px;
  border: 1px solid transparent;
  transition: all .3s ease;
}
.search-toggle:hover { color: var(--accent); background: rgba(255,255,255,0.06); }
.nav-cta { height: 40px; padding: 0 20px; font-size: 14px; }
.menu-toggle {
  display: none;
  width: 40px; height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  color: var(--text);
  font-size: 18px;
  background: var(--glass);
  border: 1px solid var(--stroke);
}

/* ===== Page Hero ===== */
.page-hero {
  position: relative;
  background-size: cover;
  background-position: center;
  padding: clamp(120px, 18vh, 180px) 0 clamp(64px, 8vh, 90px);
  text-align: center;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5,13,23,0.75) 0%, rgba(5,13,23,0.55) 50%, rgba(5,13,23,0.85) 100%);
  z-index: 1;
}
.page-hero .container { position: relative; z-index: 2; }
.hero-eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .14em;
  color: var(--accent);
  background: rgba(25,240,184,0.1);
  border: 1px solid rgba(25,240,184,0.25);
  padding: 6px 20px;
  border-radius: var(--radius-pill);
  margin-bottom: 22px;
}
.page-hero h1 {
  font-size: clamp(32px, 5vw, 44px);
  color: #fff;
  margin-bottom: 14px;
}
.hero-sub { font-size: 17px; color: #C6D6E6; max-width: 560px; margin: 0 auto 30px; }
.hero-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
.hero-stats {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 56px;
  padding: 24px 28px;
  background: rgba(255,255,255,0.055);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: var(--radius);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow);
}
.stat-item {
  padding: 6px 22px;
  text-align: center;
  position: relative;
}
.stat-item:not(:last-child)::after {
  content: '';
  position: absolute;
  right: 0; top: 18%; height: 64%;
  width: 1px;
  background: rgba(255,255,255,0.12);
}
.stat-item strong {
  display: block;
  font-size: clamp(22px, 2.6vw, 30px);
  font-weight: 700;
  color: var(--accent);
  line-height: 1.2;
  text-shadow: 0 0 18px rgba(25,240,184,0.35);
}
.stat-item span { font-size: 13px; color: var(--text-muted); }

/* ===== Split Feature ===== */
.split-row { align-items: center; gap: 36px 0; }
.split-row .cell h2 { margin-bottom: 14px; }
.split-row .cell p { color: var(--text-muted); margin-bottom: 12px; max-width: 520px; }
.badge-list { margin-top: 22px; }
.split-image {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--stroke);
}
.split-image img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.split-image:hover img { transform: scale(1.02); }

/* ===== Feature Cards ===== */
.card-grid-offset { gap: 24px 0; }
.feature-card {
  background: var(--glass);
  border: 1px solid var(--stroke);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: transform .35s ease, border-color .35s ease, box-shadow .35s ease;
  height: 100%;
}
.feature-card:hover {
  transform: translateY(-3px);
  border-color: rgba(255,255,255,0.3);
  box-shadow: 0 12px 40px rgba(0,0,0,0.45), 0 0 0 1px rgba(25,240,184,0.08);
}
.feature-card .card-img { overflow: hidden; }
.feature-card .card-img img { width: 100%; height: 220px; object-fit: cover; transition: transform .5s ease; }
.feature-card:hover .card-img img { transform: scale(1.03); }
.feature-card .card-body { padding: 26px 28px; }
.feature-card .card-body h3 { font-size: 20px; margin: 10px 0 8px; }
.feature-card .card-body p { font-size: 14px; color: var(--text-muted); line-height: 1.65; }
.feature-card-wide .card-img img { height: 300px; }
.feature-card-horizontal {
  display: flex;
  align-items: stretch;
  gap: 0;
}
.feature-card-horizontal .card-img { flex: 0 0 40%; }
.feature-card-horizontal .card-img img { height: 100%; min-height: 200px; object-fit: cover; }
.feature-card-horizontal .card-body { flex: 1; display: flex; flex-direction: column; justify-content: center; }
.feature-card-horizontal .card-body h3 { font-size: 22px; }

/* ===== Scene Grid ===== */
.scene-grid { gap: 20px 0; }
.scene-item {
  display: flex;
  gap: 18px;
  padding: 28px;
  background: var(--glass);
  border: 1px solid var(--stroke);
  border-radius: var(--radius);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: all .3s ease;
  height: 100%;
}
.scene-item:hover {
  border-color: rgba(25,240,184,0.3);
  background: rgba(255,255,255,0.08);
  transform: translateY(-2px);
}
.scene-icon {
  flex-shrink: 0;
  width: 48px; height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--accent);
  background: rgba(25,240,184,0.1);
  border: 1px solid rgba(25,240,184,0.3);
  border-radius: 14px;
}
.scene-item h3 { font-size: 18px; margin-bottom: 4px; }
.scene-item p { font-size: 14px; color: var(--text-muted); line-height: 1.6; }

/* ===== Process ===== */
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}
.process-steps::before {
  content: '';
  position: absolute;
  top: 36px; left: 10%; right: 10%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(25,240,184,0.5), rgba(25,240,184,0.5), transparent);
  z-index: 0;
}
.process-item {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 36px 22px 28px;
  background: rgba(5,13,23,0.75);
  border: 1px solid var(--stroke);
  border-radius: var(--radius);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow);
  transition: all .3s ease;
}
.process-item:hover {
  border-color: rgba(25,240,184,0.4);
  transform: translateY(-3px);
}
.step-num {
  display: block;
  font-size: 28px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 12px;
  text-shadow: 0 0 20px rgba(25,240,184,0.3);
}
.process-item h3 { font-size: 18px; margin-bottom: 6px; }
.process-item p { font-size: 14px; color: var(--text-muted); line-height: 1.5; }

/* ===== Game List ===== */
.row-between { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.text-link { color: var(--accent); font-size: 15px; font-weight: 500; padding-bottom: 3px; border-bottom: 1px solid rgba(25,240,184,0.3); transition: border-color .3s ease; }
.text-link:hover { border-color: var(--accent); color: var(--accent-light, #7ff5d8); }
.game-list { display: flex; flex-direction: column; gap: 18px; }
.game-card {
  display: flex;
  align-items: center;
  gap: 22px;
  padding: 16px;
  background: var(--glass);
  border: 1px solid var(--stroke);
  border-radius: var(--radius);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow);
  transition: all .3s ease;
}
.game-card:hover {
  border-color: rgba(255,255,255,0.28);
  box-shadow: 0 10px 36px rgba(0,0,0,0.45);
  transform: translateY(-2px);
}
.game-thumb { flex: 0 0 200px; height: 130px; border-radius: var(--radius-sm); overflow: hidden; }
.game-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.game-card:hover .game-thumb img { transform: scale(1.04); }
.game-info { flex: 1; }
.game-info h3 { font-size: 18px; margin: 8px 0 5px; }
.game-info p { font-size: 14px; color: var(--text-muted); line-height: 1.6; margin-bottom: 6px; }
.game-meta { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.game-meta span { font-size: 13px; color: var(--text-muted); }
.empty-tip { text-align: center; padding: 60px 20px; color: var(--text-muted); font-size: 15px; border: 1px dashed var(--stroke); border-radius: var(--radius); background: var(--glass); }

/* ===== Quote ===== */
.quote-card {
  max-width: 820px;
  margin: 0 auto;
  padding: 52px 44px;
  text-align: center;
  background: linear-gradient(135deg, rgba(25,240,184,0.08), rgba(10,27,47,0.4));
  border: 1px solid rgba(25,240,184,0.2);
  border-radius: 24px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  position: relative;
}
.quote-mark {
  font-size: 72px;
  line-height: 1;
  color: var(--accent);
  font-family: Georgia, serif;
  margin-bottom: 8px;
}
.quote-card p { font-size: 17px; color: var(--text); line-height: 1.8; margin: 12px 0 20px; }
.quote-author { font-size: 14px; color: var(--text-muted); }

/* ===== FAQ ===== */
.faq-list { max-width: 860px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }
.faq-item {
  background: var(--glass);
  border: 1px solid var(--stroke);
  border-radius: var(--radius);
  overflow: hidden;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: border-color .3s ease;
}
.faq-item.open { border-color: rgba(25,240,184,0.45); }
.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  text-align: left;
  background: none;
  border: 0;
  transition: background .3s ease;
  cursor: pointer;
}
.faq-question:hover { background: rgba(255,255,255,0.04); }
.faq-question .faq-icon {
  color: var(--accent);
  transition: transform .35s ease;
  font-size: 18px;
}
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s ease;
}
.faq-answer-inner {
  padding: 0 24px 22px;
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ===== CTA ===== */
.cta-section {
  position: relative;
  padding: clamp(60px, 8vw, 100px) 0;
  text-align: center;
  background: linear-gradient(180deg, rgba(10,27,47,0.9), rgba(5,13,23,1));
}
.cta-section::before {
  content: '';
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  box-shadow: 0 0 24px rgba(25,240,184,0.6);
}
.cta-section h2 { font-size: clamp(26px, 3.4vw, 34px); margin-bottom: 12px; }
.cta-section p { color: var(--text-muted); font-size: 16px; max-width: 600px; margin: 0 auto 26px; }
.cta-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
.cta-note { font-size: 12px; color: var(--text-muted); margin-top: 20px !important; }

/* ===== Footer ===== */
.site-footer {
  background: #03080F;
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 60px 0 0;
}
.footer-brand { margin-bottom: 20px; }
.footer-brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
}
.footer-brand-logo i { color: var(--accent); font-size: 22px; }
.footer-brand p { font-size: 14px; color: var(--text-muted); line-height: 1.7; max-width: 320px; }
.site-footer h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 18px;
  color: var(--text);
}
.site-footer ul li { margin-bottom: 10px; }
.site-footer ul li a { font-size: 14px; color: var(--text-muted); transition: color .3s ease; }
.site-footer ul li a:hover { color: var(--accent); }
.footer-bottom {
  margin-top: 48px;
  padding: 22px 0;
  border-top: 1px solid rgba(255,255,255,0.07);
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .menu-toggle { display: flex; z-index: 1300; }
  .main-nav {
    position: fixed;
    top: 0; right: -320px;
    width: 300px;
    height: 100vh;
    background: rgba(5,13,23,0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    padding: 90px 28px 32px;
    border-left: 1px solid var(--stroke);
    box-shadow: -12px 0 40px rgba(0,0,0,0.5);
    transition: right .4s ease;
    z-index: 1250;
    gap: 24px;
  }
  body.nav-open .main-nav { right: 0; }
  .main-nav ul { flex-direction: column; align-items: flex-start; gap: 4px; width: 100%; }
  .main-nav ul li { width: 100%; }
  .main-nav ul li a { font-size: 17px; padding: 12px 16px; }
  .main-nav ul li a.active::after { left: 16px; right: auto; width: 24px; }
  .nav-actions { width: 100%; flex-direction: column; align-items: stretch; gap: 10px; }
  .nav-actions .search-toggle { width: 100%; border-radius: var(--radius-pill); border: 1px solid var(--stroke); }
  .nav-cta { width: 100%; }
  .process-steps { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .process-steps::before { display: none; }
}

@media (max-width: 767px) {
  .container { padding: 0 18px; }
  .header-inner { height: 64px; }
  .brand-logo { font-size: 20px; }
  .page-hero { padding: 100px 0 48px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { width: 100%; }
  .hero-stats { gap: 8px; padding: 18px 14px; }
  .stat-item { padding: 4px 12px; }
  .stat-item strong { font-size: 20px; }
  .feature-card-horizontal { flex-direction: column; }
  .feature-card-horizontal .card-img { flex: none; }
  .feature-card-horizontal .card-img img { height: 200px; }
  .game-card { flex-direction: column; align-items: flex-start; }
  .game-thumb { flex: none; width: 100%; height: auto; aspect-ratio: 16 / 9; }
  .game-meta { align-items: flex-start; }
  .quote-card { padding: 36px 22px; }
  .faq-question { padding: 16px 18px; font-size: 15px; }
  .faq-answer-inner { padding: 0 18px 18px; }
  .section { padding: 52px 0; }
  .section-heading { margin-bottom: 30px; }
  .footer-bottom { font-size: 12px; padding: 18px 12px; line-height: 1.6; }
}

@media (max-width: 520px) {
  .page-hero h1 { font-size: 28px; }
  .hero-sub { font-size: 15px; }
  .process-steps { grid-template-columns: 1fr 1fr; gap: 12px; }
  .process-item { padding: 24px 14px 18px; }
  .process-item p { font-size: 13px; }
  .scene-item { padding: 20px; }
  .scene-icon { width: 40px; height: 40px; font-size: 17px; }
  .feature-card .card-body { padding: 20px; }
  .feature-card-wide .card-img img { height: 220px; }
  .feature-card-horizontal .card-img img { height: 180px; }
  .cta-note { font-size: 11px; }
}

/* roulang page: article */
:root {
  --primary: #0A1B2F;
  --primary-light: #143252;
  --accent: #19F0B8;
  --accent-deep: #0DBE8F;
  --bg: #050D17;
  --glass: rgba(255, 255, 255, 0.055);
  --stroke: rgba(255, 255, 255, 0.14);
  --text: #F0F7FC;
  --text-muted: #93A7BF;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-btn: 28px;
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
  --shadow-accent: 0 0 16px rgba(25, 240, 184, 0.4);
  --transition: all 0.3s ease;
  --space-section: 100px;
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a {
  color: var(--accent);
  text-decoration: none;
  transition: var(--transition);
}
a:hover {
  color: var(--accent-deep);
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
ul,
ol {
  list-style: none;
}
button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}
.container {
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}
.container-narrow {
  max-width: 780px;
  margin-left: auto;
  margin-right: auto;
}
.grid-margin-x {
  margin-left: -14px;
  margin-right: -14px;
}
.grid-x > .cell {
  padding-left: 14px;
  padding-right: 14px;
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(5, 13, 23, 0.45);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: background 0.4s ease, box-shadow 0.4s ease, border-color 0.4s ease;
}
.site-header.scrolled {
  background: rgba(5, 13, 23, 0.94);
  box-shadow: 0 6px 30px rgba(0, 0, 0, 0.45);
  border-bottom-color: rgba(255, 255, 255, 0.12);
}
.header-bar {
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.header-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.2px;
  white-space: nowrap;
  flex-shrink: 0;
}
.header-logo i {
  font-size: 24px;
  color: var(--accent);
  filter: drop-shadow(0 0 8px rgba(25, 240, 184, 0.4));
}
.header-logo:hover {
  color: var(--text);
}
.header-logo span {
  background: linear-gradient(135deg, var(--text), #B8D8E8);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.main-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex: 1;
}
.main-nav ul {
  display: flex;
  align-items: center;
  gap: 28px;
  margin: 0;
}
.main-nav ul li {
  margin: 0;
}
.main-nav ul li a {
  font-size: 15px;
  font-weight: 500;
  color: rgba(240, 247, 252, 0.82);
  padding: 8px 4px;
  position: relative;
  letter-spacing: 0.3px;
}
.main-nav ul li a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transition: width 0.3s ease;
  box-shadow: 0 0 8px rgba(25, 240, 184, 0.5);
}
.main-nav ul li a:hover,
.main-nav ul li a.active {
  color: var(--accent);
}
.main-nav ul li a:hover::after,
.main-nav ul li a.active::after {
  width: 100%;
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}
.search-toggle {
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--stroke);
  background: var(--glass);
  color: var(--text);
  font-size: 16px;
  transition: var(--transition);
}
.search-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 0 12px rgba(25, 240, 184, 0.2);
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  padding: 12px 28px;
  border-radius: var(--radius-btn);
  border: 1px solid transparent;
  transition: var(--transition);
  line-height: 1.4;
  cursor: pointer;
  text-decoration: none;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  color: #04231B;
  box-shadow: 0 0 16px rgba(25, 240, 184, 0.3);
}
.btn-primary:hover {
  box-shadow: 0 0 28px rgba(25, 240, 184, 0.5);
  transform: translateY(-2px);
  color: #04231B;
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 0 12px rgba(25, 240, 184, 0.35);
}
.btn-primary:focus {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}
.btn-ghost {
  background: var(--glass);
  border: 1px solid var(--stroke);
  color: var(--text);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}
.btn-ghost:focus {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}
.btn-lg {
  padding: 16px 42px;
  font-size: 17px;
}
.nav-cta {
  padding: 10px 22px;
  font-size: 14px;
}
.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  border: 1px solid var(--stroke);
  background: var(--glass);
  color: var(--text);
  font-size: 18px;
  transition: var(--transition);
}
.menu-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* Header Search */
.header-search {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
  background: rgba(5, 13, 23, 0.96);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.header-search.active {
  max-height: 140px;
  padding: 18px 0;
}
.header-search-inner {
  display: flex;
  gap: 12px;
  max-width: 680px;
}
.header-search-inner input {
  flex: 1;
  height: 48px;
  border-radius: 24px;
  border: 1px solid var(--stroke);
  background: rgba(255, 255, 255, 0.07);
  color: var(--text);
  font-size: 15px;
  padding: 0 24px;
  outline: none;
  transition: var(--transition);
}
.header-search-inner input::placeholder {
  color: var(--text-muted);
}
.header-search-inner input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(25, 240, 184, 0.12);
}
.header-search-inner button {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--accent);
  color: #04231B;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  transition: var(--transition);
  flex-shrink: 0;
}
.header-search-inner button:hover {
  box-shadow: 0 0 20px rgba(25, 240, 184, 0.4);
}

/* Breadcrumb */
.breadcrumb-wrap {
  padding: 92px 0 16px;
  background: var(--bg);
}
.breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 10px 20px;
  margin: 0;
}
.breadcrumb-list li {
  display: inline-flex;
  align-items: center;
}
.breadcrumb-list a {
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.breadcrumb-list a:hover {
  color: var(--accent);
}
.breadcrumb-list .sep {
  color: rgba(147, 167, 191, 0.5);
  font-size: 13px;
}
.breadcrumb-list .current {
  color: var(--text);
  font-weight: 500;
  max-width: 400px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Article Hero */
.article-hero {
  position: relative;
  padding: 56px 0 48px;
  background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
}
.article-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5, 13, 23, 0.72) 0%, rgba(5, 13, 23, 0.88) 70%, var(--bg) 100%);
  pointer-events: none;
}
.article-hero-inner {
  position: relative;
  text-align: center;
  max-width: 900px;
}
.article-category-badge {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  padding: 6px 20px;
  border-radius: 999px;
  background: rgba(25, 240, 184, 0.1);
  border: 1px solid rgba(25, 240, 184, 0.25);
  color: var(--accent);
  margin-bottom: 20px;
  letter-spacing: 0.5px;
}
.article-hero-inner h1 {
  font-size: 36px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text);
  max-width: 840px;
  margin: 0 auto 24px;
}
.article-meta {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 14px;
  color: var(--text-muted);
}
.article-meta span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.article-meta i {
  color: var(--accent);
  font-size: 14px;
}

/* Article Main */
.article-section {
  padding: 48px 0 20px;
}
.article-body {
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  padding: 48px 56px;
  box-shadow: var(--shadow-card);
}
.article-body h2 {
  font-size: 26px;
  font-weight: 700;
  margin: 42px 0 16px;
  line-height: 1.35;
  color: var(--text);
  position: relative;
  padding-left: 16px;
}
.article-body h2::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 4px;
  border-radius: 4px;
  background: linear-gradient(180deg, var(--accent), var(--accent-deep));
}
.article-body h3 {
  font-size: 20px;
  font-weight: 600;
  margin: 32px 0 12px;
  line-height: 1.4;
  color: var(--text);
}
.article-body h4 {
  font-size: 17px;
  font-weight: 600;
  margin: 24px 0 10px;
  color: var(--text);
}
.article-body p {
  margin-bottom: 20px;
  color: rgba(240, 247, 252, 0.88);
  font-size: 16px;
}
.article-body p:last-child {
  margin-bottom: 0;
}
.article-body a:not(.btn) {
  color: var(--accent);
  border-bottom: 1px solid rgba(25, 240, 184, 0.35);
  transition: var(--transition);
}
.article-body a:not(.btn):hover {
  border-bottom-color: var(--accent);
  color: var(--accent-deep);
}
.article-body blockquote {
  margin: 28px 0;
  padding: 20px 24px;
  border-left: 4px solid var(--accent);
  background: rgba(25, 240, 184, 0.06);
  border-radius: 0 12px 12px 0;
  color: rgba(240, 247, 252, 0.85);
  font-size: 16px;
}
.article-body blockquote p {
  margin-bottom: 8px;
}
.article-body blockquote p:last-child {
  margin-bottom: 0;
}
.article-body ul,
.article-body ol {
  margin: 20px 0;
  padding-left: 24px;
  color: rgba(240, 247, 252, 0.88);
}
.article-body ul li {
  list-style: disc;
  margin-bottom: 10px;
  padding-left: 4px;
}
.article-body ol li {
  list-style: decimal;
  margin-bottom: 10px;
  padding-left: 4px;
}
.article-body img {
  border-radius: 12px;
  margin: 28px 0;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
}
.article-body img + em {
  display: block;
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
  margin-top: -20px;
  margin-bottom: 28px;
}
.article-body pre {
  background: #0D1B2A;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 24px;
  overflow-x: auto;
  margin: 24px 0;
  font-size: 14px;
  line-height: 1.6;
}
.article-body code {
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
  background: rgba(255, 255, 255, 0.08);
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 14px;
  color: var(--accent);
}
.article-body pre code {
  background: transparent;
  padding: 0;
  color: #E5E9F0;
}
.article-body table {
  width: 100%;
  margin: 28px 0;
  border-collapse: separate;
  border-spacing: 0;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 15px;
}
.article-body table th {
  background: rgba(25, 240, 184, 0.08);
  color: var(--text);
  padding: 14px 16px;
  text-align: left;
  font-weight: 600;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.article-body table td {
  padding: 12px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  color: rgba(240, 247, 252, 0.85);
}
.article-body table tr:last-child td {
  border-bottom: none;
}
.article-body table tr:hover td {
  background: rgba(255, 255, 255, 0.03);
}
.article-body hr {
  border: none;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(25, 240, 184, 0.3), transparent);
  margin: 40px 0;
}

/* Article Pager */
.article-pager {
  margin-top: 48px;
  padding-top: 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}
.pager-card {
  display: block;
  padding: 20px 24px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  transition: var(--transition);
  height: 100%;
}
.pager-card:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(25, 240, 184, 0.35);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}
.pager-card-next {
  text-align: right;
}
.pager-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.pager-card-next .pager-label {
  justify-content: flex-end;
}
.pager-title {
  display: block;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
}
.article-back {
  margin-top: 32px;
  text-align: center;
}

/* Article Empty */
.article-not-found {
  text-align: center;
  padding: 80px 32px;
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
}
.article-not-found i {
  font-size: 56px;
  color: var(--text-muted);
  margin-bottom: 24px;
}
.article-not-found h2 {
  font-size: 26px;
  margin-bottom: 12px;
}
.article-not-found p {
  color: var(--text-muted);
  font-size: 15px;
  margin-bottom: 28px;
}

/* Related Section */
.related-section {
  padding: 80px 0;
  position: relative;
}
.related-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(25, 240, 184, 0.04) 0%, transparent 65%);
  pointer-events: none;
}
.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 40px;
  flex-wrap: wrap;
  gap: 16px;
}
.section-head h2 {
  font-size: 28px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 12px;
}
.section-head h2 i {
  color: var(--accent);
  font-size: 24px;
}
.section-more {
  font-size: 14px;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border: 1px solid var(--stroke);
  border-radius: 999px;
  transition: var(--transition);
}
.section-more:hover {
  color: var(--accent);
  border-color: var(--accent);
}
.related-card {
  display: flex;
  flex-direction: column;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--stroke);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  height: 100%;
}
.related-card:hover {
  transform: translateY(-4px);
  border-color: rgba(25, 240, 184, 0.4);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.45);
}
.related-thumb {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  position: relative;
}
.related-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.related-card:hover .related-thumb img {
  transform: scale(1.06);
}
.related-thumb::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(5, 13, 23, 0.35));
}
.related-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.tag {
  display: inline-block;
  align-self: flex-start;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 999px;
  background: rgba(25, 240, 184, 0.1);
  border: 1px solid rgba(25, 240, 184, 0.22);
  color: var(--accent);
  letter-spacing: 0.4px;
}
.related-body h3 {
  font-size: 18px;
  font-weight: 600;
  margin-top: 14px;
  margin-bottom: 8px;
  color: var(--text);
  line-height: 1.4;
}
.related-body p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 0;
}

/* CTA Section */
.cta-section {
  padding: 40px 0 80px;
  position: relative;
}
.cta-box {
  background: linear-gradient(135deg, #0A1B2F 0%, #143252 60%, #173A4F 100%);
  border: 1px solid rgba(25, 240, 184, 0.18);
  border-radius: 24px;
  padding: 64px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-box::before {
  content: '';
  position: absolute;
  top: -60%;
  left: 50%;
  transform: translateX(-50%);
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(25, 240, 184, 0.2) 0%, transparent 70%);
  pointer-events: none;
}
.cta-box h2 {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 12px;
  position: relative;
}
.cta-box p {
  font-size: 16px;
  color: var(--text-muted);
  margin-bottom: 32px;
  position: relative;
}
.cta-note {
  font-size: 12px !important;
  color: rgba(147, 167, 191, 0.7) !important;
  margin-top: 20px !important;
  margin-bottom: 0 !important;
}

/* Footer */
.site-footer {
  background: #03080F;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 64px 0 0;
  color: var(--text-muted);
}
.site-footer .grid-x {
  margin-bottom: 48px;
}
.site-footer h4 {
  color: var(--text);
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 20px;
  letter-spacing: 0.5px;
}
.site-footer ul {
  margin: 0;
}
.site-footer ul li {
  margin-bottom: 12px;
  font-size: 14px;
}
.site-footer ul li a {
  color: var(--text-muted);
  font-size: 14px;
  transition: var(--transition);
}
.site-footer ul li a:hover {
  color: var(--accent);
  padding-left: 4px;
}
.footer-brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 16px;
}
.footer-brand-logo i {
  color: var(--accent);
  font-size: 24px;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-muted);
  max-width: 300px;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(147, 167, 191, 0.65);
}

/* Responsive */
@media (max-width: 1023px) {
  .menu-toggle {
    display: inline-flex;
  }
  .main-nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(5, 13, 23, 0.97);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: flex-start;
    padding: 28px 32px;
    transform: translateY(-130%);
    transition: transform 0.4s ease;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
    z-index: 999;
  }
  .main-nav.open {
    transform: translateY(0);
  }
  .main-nav ul {
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
    width: 100%;
  }
  .main-nav ul li a {
    font-size: 16px;
    padding: 7px 0;
  }
  .nav-actions {
    width: 100%;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    justify-content: space-between;
  }
  .nav-cta {
    flex: 1;
    text-align: center;
  }
  .article-body {
    padding: 36px 32px;
  }
  .article-hero-inner h1 {
    font-size: 32px;
  }
  .cta-box {
    padding: 48px 32px;
  }
}
@media (max-width: 767px) {
  :root {
    --space-section: 56px;
  }
  .header-bar {
    padding: 12px 20px;
  }
  .header-logo {
    font-size: 17px;
    gap: 8px;
  }
  .header-logo i {
    font-size: 20px;
  }
  .breadcrumb-wrap {
    padding: 76px 0 12px;
  }
  .breadcrumb-list {
    padding: 10px 14px;
    font-size: 13px;
  }
  .breadcrumb-list .current {
    max-width: 180px;
  }
  .article-hero {
    padding: 40px 0 32px;
  }
  .article-hero-inner h1 {
    font-size: 26px;
    line-height: 1.35;
  }
  .article-meta {
    gap: 12px;
    font-size: 13px;
    flex-direction: column;
    align-items: center;
  }
  .article-section {
    padding: 24px 0 0;
  }
  .article-body {
    padding: 28px 20px;
    border-radius: 14px;
    font-size: 15px;
  }
  .article-body h2 {
    font-size: 21px;
    margin: 32px 0 14px;
  }
  .article-body h3 {
    font-size: 18px;
  }
  .article-body blockquote {
    padding: 16px 18px;
    font-size: 15px;
  }
  .article-body table {
    font-size: 13px;
  }
  .article-body table th,
  .article-body table td {
    padding: 10px 12px;
  }
  .article-pager {
    margin-top: 36px;
    padding-top: 28px;
  }
  .pager-card {
    margin-bottom: 16px;
  }
  .article-back .btn {
    width: 100%;
  }
  .related-section {
    padding: 56px 0;
  }
  .section-head h2 {
    font-size: 24px;
  }
  .related-card {
    margin-bottom: 20px;
  }
  .cta-section {
    padding: 24px 0 56px;
  }
  .cta-box {
    padding: 40px 24px;
    border-radius: 18px;
  }
  .cta-box h2 {
    font-size: 24px;
  }
  .cta-box .btn {
    width: 100%;
  }
  .site-footer {
    padding-top: 48px;
  }
  .site-footer .cell {
    margin-bottom: 32px;
  }
  .footer-bottom {
    padding: 16px 0;
    font-size: 12px;
  }
}
@media (max-width: 520px) {
  .header-logo span {
    max-width: 180px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .article-hero-inner h1 {
    font-size: 22px;
  }
  .article-body pre {
    padding: 16px;
    font-size: 13px;
  }
  .article-body code {
    font-size: 13px;
  }
}

/* roulang page: category2 */
/* ========== Design Tokens & Reset ========== */
    :root {
      --primary: #0A1B2F;
      --primary-light: #143252;
      --accent: #19F0B8;
      --accent-deep: #0DBE8F;
      --bg: #050D17;
      --bg-deep: #02070D;
      --glass: rgba(255, 255, 255, 0.055);
      --glass-strong: rgba(255, 255, 255, 0.08);
      --stroke: rgba(255, 255, 255, 0.14);
      --stroke-strong: rgba(255, 255, 255, 0.3);
      --text: #F0F7FC;
      --text-muted: #93A7BF;
      --radius-card: 16px;
      --radius-img: 12px;
      --radius-btn: 28px;
      --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
      --shadow-glow: 0 0 16px rgba(25, 240, 184, 0.4);
      --font-base: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
      --section-space: 100px;
    }

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

    html {
      scroll-behavior: smooth;
    }

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

    a {
      color: var(--accent);
      text-decoration: none;
      transition: color 0.3s ease;
    }

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

    img {
      max-width: 100%;
      height: auto;
      display: block;
      border-radius: var(--radius-img);
    }

    ul,
    ol {
      list-style: none;
    }

    h1,
    h2,
    h3,
    h4,
    h5,
    h6 {
      line-height: 1.3;
      margin: 0;
      padding: 0;
    }

    p {
      margin: 0;
    }

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

    input {
      font-family: inherit;
    }

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

    .container-fluid {
      width: 100%;
    }

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

    .section-title {
      font-size: 30px;
      font-weight: 700;
      margin-bottom: 12px;
      letter-spacing: 0.5px;
    }

    .section-subtitle {
      color: var(--text-muted);
      font-size: 16px;
      max-width: 640px;
      line-height: 1.75;
      margin-bottom: 40px;
    }

    .text-center {
      text-align: center;
    }

    .text-accent {
      color: var(--accent);
    }

    /* ========== Buttons ========== */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 0 28px;
      height: 48px;
      border-radius: var(--radius-btn);
      font-size: 15px;
      font-weight: 600;
      border: 1px solid transparent;
      transition: all 0.3s ease;
      text-decoration: none;
      white-space: nowrap;
      cursor: pointer;
      background: transparent;
      color: var(--text);
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--accent), var(--accent-deep));
      color: #04131C;
      box-shadow: var(--shadow-glow);
    }

    .btn-primary:hover {
      box-shadow: 0 0 28px rgba(25, 240, 184, 0.65);
      transform: translateY(-2px);
      color: #04131C;
    }

    .btn-primary:active {
      transform: translateY(0);
      box-shadow: 0 0 10px rgba(25, 240, 184, 0.4);
    }

    .btn-primary:focus-visible,
    .btn-outline:focus-visible,
    .menu-toggle:focus-visible,
    .search-toggle:focus-visible,
    .tag-pill:focus-visible {
      outline: 2px solid var(--accent);
      outline-offset: 3px;
      box-shadow: 0 0 0 6px rgba(25, 240, 184, 0.15);
    }

    .btn-outline {
      background: var(--glass);
      border: 1px solid var(--stroke);
      color: var(--text);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      height: 40px;
      font-size: 14px;
    }

    .btn-outline:hover {
      border-color: var(--stroke-strong);
      background: var(--glass-strong);
      color: var(--accent);
      transform: translateY(-2px);
    }

    .btn-outline.btn-sm {
      height: 40px;
      padding: 0 20px;
    }

    .btn-lg {
      height: 56px;
      padding: 0 40px;
      font-size: 16px;
    }

    /* ========== Header / Nav ========== */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 999;
      background: rgba(5, 13, 23, 0.55);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      transition: background 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
    }

    .site-header.scrolled {
      background: rgba(5, 13, 23, 0.94);
      box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
      border-color: rgba(255, 255, 255, 0.05);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
      gap: 24px;
    }

    .nav-logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-size: 20px;
      font-weight: 700;
      color: var(--text);
      text-decoration: none;
      white-space: nowrap;
      flex-shrink: 0;
    }

    .nav-logo i {
      color: var(--accent);
      font-size: 24px;
      filter: drop-shadow(0 0 8px rgba(25, 240, 184, 0.5));
    }

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

    .main-nav {
      display: flex;
      align-items: center;
      gap: 24px;
      flex: 1;
      justify-content: flex-end;
    }

    .main-nav ul {
      display: flex;
      align-items: center;
      gap: 28px;
      margin: 0;
    }

    .main-nav ul li {
      position: relative;
      margin: 0;
    }

    .main-nav ul li a {
      display: block;
      font-size: 15px;
      font-weight: 500;
      color: var(--text-muted);
      text-decoration: none;
      padding: 8px 2px;
      transition: color 0.3s ease, transform 0.3s ease;
      position: relative;
    }

    .main-nav ul li a::after {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      bottom: -2px;
      height: 2px;
      border-radius: 2px;
      background: var(--accent);
      opacity: 0;
      transform: scaleX(0.4);
      transition: opacity 0.3s ease, transform 0.3s ease;
      box-shadow: 0 0 8px rgba(25, 240, 184, 0.5);
    }

    .main-nav ul li a:hover {
      color: var(--text);
      transform: translateY(-2px);
    }

    .main-nav ul li a:hover::after,
    .main-nav ul li a.active::after {
      opacity: 1;
      transform: scaleX(1);
    }

    .main-nav ul li a.active {
      color: var(--accent);
      font-weight: 600;
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .search-toggle {
      width: 40px;
      height: 40px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 50%;
      color: var(--text-muted);
      font-size: 16px;
      transition: all 0.3s ease;
      border: 1px solid transparent;
    }

    .search-toggle:hover {
      color: var(--accent);
      background: var(--glass);
      border-color: var(--stroke);
    }

    .nav-cta {
      height: 40px;
      padding: 0 20px;
      font-size: 14px;
    }

    .menu-toggle {
      display: none;
      width: 40px;
      height: 40px;
      border-radius: 50%;
      border: 1px solid var(--stroke);
      background: var(--glass);
      color: var(--text);
      font-size: 16px;
      align-items: center;
      justify-content: center;
      transition: all 0.3s ease;
    }

    .menu-toggle:hover {
      color: var(--accent);
      border-color: var(--stroke-strong);
    }

    /* ========== Category Hero ========== */
    .category-hero {
      position: relative;
      min-height: 88vh;
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      padding: 160px 24px 100px;
      background: linear-gradient(180deg, rgba(5, 13, 23, 0.72) 0%, rgba(5, 13, 23, 0.45) 40%, rgba(5, 13, 23, 0.9) 100%), url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
    }

    .category-hero .hero-inner {
      max-width: 760px;
      margin: 0 auto;
    }

    .hero-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: var(--glass);
      border: 1px solid var(--stroke);
      border-radius: 999px;
      padding: 6px 18px;
      font-size: 13px;
      color: var(--accent);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      margin-bottom: 24px;
    }

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

    .category-hero h1 {
      font-size: 40px;
      font-weight: 700;
      line-height: 1.25;
      margin-bottom: 18px;
      letter-spacing: 1px;
    }

    .category-hero h1 .highlight {
      background: linear-gradient(120deg, var(--accent), var(--accent-deep));
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .hero-lead {
      font-size: 17px;
      color: var(--text-muted);
      max-width: 560px;
      margin: 0 auto 36px;
      line-height: 1.8;
    }

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

    .hero-stats {
      margin-top: 56px;
      display: flex;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
    }

    .hero-stat {
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid var(--stroke);
      border-radius: 16px;
      padding: 18px 32px;
      min-width: 150px;
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      text-align: center;
      transition: border-color 0.3s ease, transform 0.3s ease;
    }

    .hero-stat:hover {
      border-color: rgba(25, 240, 184, 0.4);
      transform: translateY(-3px);
    }

    .hero-stat .num {
      font-size: 28px;
      font-weight: 700;
      color: var(--accent);
      line-height: 1.2;
    }

    .hero-stat .label {
      font-size: 13px;
      color: var(--text-muted);
      margin-top: 4px;
      letter-spacing: 0.5px;
    }

    /* ========== Section: Brand Idea ========== */
    .section-idea {
      background: var(--bg);
      padding: var(--section-space) 0;
      position: relative;
      overflow: hidden;
    }

    .section-idea::before {
      content: "";
      position: absolute;
      top: -120px;
      right: -120px;
      width: 360px;
      height: 360px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(25, 240, 184, 0.08) 0%, transparent 70%);
      pointer-events: none;
    }

    .idea-grid {
      display: grid;
      grid-template-columns: 1fr 1.05fr;
      gap: 56px;
      align-items: center;
    }

    .idea-text .section-title {
      font-size: 30px;
      margin-bottom: 20px;
    }

    .idea-text p {
      color: var(--text-muted);
      font-size: 15px;
      line-height: 1.85;
      margin-bottom: 20px;
    }

    .idea-badges {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 24px;
    }

    .badge-pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: var(--glass);
      border: 1px solid var(--stroke);
      border-radius: 999px;
      padding: 8px 20px;
      font-size: 13px;
      color: var(--text);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      transition: all 0.3s ease;
    }

    .badge-pill i {
      color: var(--accent);
      font-size: 12px;
    }

    .badge-pill:hover {
      border-color: rgba(25, 240, 184, 0.4);
      color: var(--accent);
      transform: translateY(-2px);
    }

    .idea-image {
      position: relative;
    }

    .idea-image img {
      width: 100%;
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-card);
    }

    .idea-image::after {
      content: "";
      position: absolute;
      inset: 0;
      border-radius: var(--radius-card);
      background: linear-gradient(135deg, rgba(25, 240, 184, 0.12), transparent 50%);
      pointer-events: none;
    }

    /* ========== Section: Features ========== */
    .section-features {
      background: var(--bg-deep);
      padding: var(--section-space) 0;
      position: relative;
    }

    .section-features::before {
      content: "";
      position: absolute;
      top: 0;
      left: 50%;
      transform: translateX(-50%);
      width: 80%;
      height: 1px;
      background: linear-gradient(90deg, transparent, rgba(25, 240, 184, 0.3), transparent);
    }

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

    .mix-card {
      border-radius: var(--radius-card);
      background: var(--glass);
      border: 1px solid var(--stroke);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      box-shadow: var(--shadow-card);
      overflow: hidden;
      transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
    }

    .mix-card:hover {
      transform: translateY(-4px);
      border-color: var(--stroke-strong);
      box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
    }

    .mix-card-large {
      grid-column: span 8;
      display: flex;
      flex-direction: column;
    }

    .mix-card-large .card-img {
      width: 100%;
      height: 240px;
      object-fit: cover;
      border-radius: 0;
    }

    .mix-card-body {
      padding: 28px;
      flex: 1;
    }

    .mix-card-body .card-icon {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: rgba(25, 240, 184, 0.12);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: var(--accent);
      font-size: 16px;
      margin-bottom: 16px;
    }

    .mix-card-body h3 {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 10px;
    }

    .mix-card-body p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.75;
    }

    .mix-card-small {
      grid-column: span 4;
      padding: 28px;
      display: flex;
      flex-direction: column;
      justify-content: center;
    }

    .mix-card-small .card-icon {
      width: 40px;
      height: 40px;
      border-radius: 12px;
      background: rgba(25, 240, 184, 0.12);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: var(--accent);
      font-size: 18px;
      margin-bottom: 14px;
    }

    .mix-card-small h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .mix-card-small p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    .mix-card-wide {
      grid-column: span 12;
      border-radius: var(--radius-card);
      background: linear-gradient(135deg, rgba(25, 240, 184, 0.08), rgba(13, 190, 143, 0.02));
      border: 1px solid rgba(25, 240, 184, 0.18);
      padding: 32px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
      flex-wrap: wrap;
      transition: border-color 0.3s ease, transform 0.3s ease;
    }

    .mix-card-wide:hover {
      border-color: rgba(25, 240, 184, 0.35);
      transform: translateY(-3px);
    }

    .mix-card-wide .wide-info {
      display: flex;
      align-items: center;
      gap: 20px;
      flex: 1;
      min-width: 260px;
    }

    .mix-card-wide .wide-info i {
      font-size: 30px;
      color: var(--accent);
    }

    .mix-card-wide h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 4px;
    }

    .mix-card-wide p {
      font-size: 14px;
      color: var(--text-muted);
    }

    /* ========== Section: Steps ========== */
    .section-steps {
      background: var(--bg);
      padding: var(--section-space) 0;
    }

    .steps-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
      margin-top: 40px;
    }

    .step-card {
      border-radius: var(--radius-card);
      background: var(--glass);
      border: 1px solid var(--stroke);
      padding: 28px;
      text-align: left;
      position: relative;
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      transition: transform 0.3s ease, border-color 0.3s ease;
      overflow: hidden;
    }

    .step-card::before {
      content: "0" counter(step);
      counter-increment: step;
      position: absolute;
      right: 18px;
      top: 10px;
      font-size: 52px;
      font-weight: 700;
      line-height: 1;
      color: rgba(255, 255, 255, 0.04);
      font-family: "SF Mono", monospace;
    }

    .steps-grid {
      counter-reset: step;
    }

    .step-card:hover {
      transform: translateY(-4px);
      border-color: rgba(25, 240, 184, 0.3);
    }

    .step-num {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 32px;
      height: 32px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--accent), var(--accent-deep));
      color: #04131C;
      font-weight: 700;
      font-size: 14px;
      margin-bottom: 16px;
    }

    .step-card h3 {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 10px;
    }

    .step-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* ========== Section: Community Posts ========== */
    .section-topics {
      background: var(--bg-deep);
      padding: var(--section-space) 0;
      position: relative;
    }

    .section-topics::before {
      content: "";
      position: absolute;
      top: 0;
      left: 50%;
      transform: translateX(-50%);
      width: 80%;
      height: 1px;
      background: linear-gradient(90deg, transparent, rgba(25, 240, 184, 0.2), transparent);
    }

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

    .community-card {
      border-radius: var(--radius-card);
      background: var(--glass);
      border: 1px solid var(--stroke);
      padding: 24px;
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      box-shadow: var(--shadow-card);
      transition: transform 0.3s ease, border-color 0.3s ease;
    }

    .community-card:hover {
      transform: translateY(-3px);
      border-color: rgba(25, 240, 184, 0.35);
    }

    .community-tag {
      display: inline-block;
      font-size: 12px;
      font-weight: 600;
      background: rgba(25, 240, 184, 0.1);
      color: var(--accent);
      border-radius: 999px;
      padding: 4px 14px;
      margin-bottom: 14px;
      border: 1px solid rgba(25, 240, 184, 0.15);
    }

    .community-card h3 {
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 8px;
      line-height: 1.4;
    }

    .community-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    .community-meta {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-top: 16px;
      padding-top: 14px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      font-size: 12px;
      color: rgba(147, 167, 191, 0.8);
    }

    .community-meta i {
      margin-right: 4px;
      color: var(--accent);
      font-size: 11px;
    }

    .empty-state {
      text-align: center;
      padding: 56px 24px;
      color: var(--text-muted);
      font-size: 14px;
      grid-column: 1 / -1;
      border: 1px dashed rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-card);
      background: var(--glass);
    }

    /* ========== Section: FAQ ========== */
    .section-faq {
      background: var(--bg);
      padding: var(--section-space) 0;
    }

    .faq-wrap {
      max-width: 860px;
      margin: 40px auto 0;
    }

    details.faq-item {
      border-radius: var(--radius-card);
      background: var(--glass);
      border: 1px solid var(--stroke);
      margin-bottom: 16px;
      overflow: hidden;
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      transition: border-color 0.3s ease, box-shadow 0.3s ease;
    }

    details.faq-item[open] {
      border-color: rgba(25, 240, 184, 0.4);
      box-shadow: 0 0 24px rgba(25, 240, 184, 0.06);
    }

    summary.faq-question {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 20px 24px;
      font-size: 16px;
      font-weight: 600;
      cursor: pointer;
      color: var(--text);
      list-style: none;
      transition: color 0.3s ease;
    }

    summary.faq-question::-webkit-details-marker {
      display: none;
    }

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

    summary.faq-question .faq-icon {
      width: 28px;
      height: 28px;
      flex-shrink: 0;
      border-radius: 50%;
      border: 1px solid var(--stroke);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 12px;
      transition: transform 0.35s ease, border-color 0.35s ease, color 0.35s ease;
      color: var(--text-muted);
    }

    details[open] summary .faq-icon {
      transform: rotate(45deg);
      border-color: var(--accent);
      color: var(--accent);
    }

    .faq-answer {
      padding: 0 24px 22px;
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.8;
    }

    /* ========== Section: CTA ========== */
    .section-cta {
      position: relative;
      padding: var(--section-space) 0;
      background: linear-gradient(180deg, rgba(25, 240, 184, 0.07), transparent 30%), url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
      background-color: var(--bg-deep);
      text-align: center;
    }

    .section-cta::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 2px;
      background: linear-gradient(90deg, transparent, var(--accent), transparent);
      box-shadow: 0 0 20px rgba(25, 240, 184, 0.6);
    }

    .cta-inner {
      max-width: 680px;
      margin: 0 auto;
      padding: 0 24px;
    }

    .cta-inner h2 {
      font-size: 32px;
      font-weight: 700;
      margin-bottom: 20px;
    }

    .cta-inner p {
      color: var(--text-muted);
      font-size: 15px;
      margin-bottom: 36px;
    }

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

    .cta-note {
      margin-top: 18px;
      font-size: 12px;
      color: rgba(147, 167, 191, 0.8);
    }

    .cta-qr {
      margin: 40px auto 0;
      width: 120px;
      height: 120px;
      border-radius: 16px;
      border: 1px solid var(--stroke);
      background: rgba(255, 255, 255, 0.04);
      display: flex;
      align-items: center;
      justify-content: center;
      color: rgba(147, 167, 191, 0.5);
      font-size: 12px;
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
    }

    /* ========== Footer ========== */
    .site-footer {
      background: var(--bg-deep);
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding: 64px 0 28px;
      position: relative;
    }

    .site-footer .grid-x {
      margin-bottom: 40px;
    }

    .footer-brand-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 20px;
      font-weight: 700;
      color: var(--text);
      margin-bottom: 14px;
    }

    .footer-brand-logo i {
      color: var(--accent);
      font-size: 22px;
      filter: drop-shadow(0 0 8px rgba(25, 240, 184, 0.4));
    }

    .footer-brand p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.8;
      max-width: 300px;
    }

    .site-footer h4 {
      font-size: 15px;
      font-weight: 600;
      color: var(--text);
      margin-bottom: 16px;
      letter-spacing: 0.5px;
    }

    .site-footer ul {
      margin: 0;
    }

    .site-footer ul li {
      margin-bottom: 10px;
      font-size: 14px;
    }

    .site-footer ul li a {
      color: var(--text-muted);
      text-decoration: none;
      transition: color 0.3s ease;
    }

    .site-footer ul li a:hover {
      color: var(--accent);
    }

    .footer-bottom {
      margin-top: 32px;
      padding-top: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      text-align: center;
      font-size: 13px;
      color: rgba(147, 167, 191, 0.7);
    }

    /* ========== Responsive ========== */
    @media (max-width: 1023px) {
      :root {
        --section-space: 72px;
      }

      .menu-toggle {
        display: inline-flex;
      }

      .main-nav {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: rgba(5, 13, 23, 0.97);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-bottom: 1px solid var(--stroke);
        padding: 0 24px;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.4s ease;
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
      }

      .main-nav.mobile-open {
        max-height: 480px;
      }

      .main-nav ul {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 12px 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
      }

      .main-nav ul li a {
        padding: 12px 0;
        font-size: 16px;
        color: var(--text-muted);
      }

      .main-nav ul li a.active {
        color: var(--accent);
      }

      .main-nav .nav-actions {
        padding: 16px 0;
        justify-content: flex-start;
      }

      .nav-cta {
        display: none;
      }

      .search-toggle {
        display: none;
      }

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

      .idea-image {
        order: -1;
      }

      .feature-mix {
        grid-template-columns: 1fr 1fr;
      }

      .mix-card-large {
        grid-column: span 2;
      }

      .mix-card-small {
        grid-column: span 1;
      }

      .mix-card-wide {
        grid-column: span 2;
      }

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

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

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

      body {
        font-size: 15px;
      }

      .container {
        padding: 0 18px;
      }

      .site-header {
        background: rgba(5, 13, 23, 0.9);
      }

      .header-inner {
        height: 64px;
      }

      .main-nav {
        top: 64px;
      }

      .nav-logo {
        font-size: 17px;
      }

      .nav-logo i {
        font-size: 20px;
      }

      .category-hero {
        min-height: auto;
        padding: 130px 18px 72px;
      }

      .category-hero h1 {
        font-size: 28px;
      }

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

      .hero-stats {
        gap: 10px;
        margin-top: 36px;
      }

      .hero-stat {
        padding: 14px 20px;
        min-width: 130px;
        flex: 1 1 calc(50% - 10px);
        max-width: none;
      }

      .hero-stat .num {
        font-size: 22px;
      }

      .hero-stat .label {
        font-size: 12px;
      }

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

      .feature-mix {
        grid-template-columns: 1fr;
      }

      .mix-card-large,
      .mix-card-small,
      .mix-card-wide {
        grid-column: span 1;
      }

      .mix-card-large .card-img {
        height: 190px;
      }

      .mix-card-wide {
        flex-direction: column;
        align-items: flex-start;
      }

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

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

      .section-title {
        font-size: 24px;
      }

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

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

      .site-footer {
        padding: 48px 0 24px;
      }

      .footer-brand p {
        max-width: 100%;
      }
    }

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

      .hero-stat {
        min-width: 100%;
        flex: 1 1 100%;
      }

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

/* roulang page: category3 */
:root {
            --primary: #0A1B2F;
            --primary-light: #143252;
            --accent: #19F0B8;
            --accent-deep: #0DBE8F;
            --bg: #050D17;
            --glass: rgba(255, 255, 255, 0.055);
            --stroke: rgba(255, 255, 255, 0.14);
            --text: #F0F7FC;
            --text-muted: #93A7BF;
            --radius-card: 16px;
            --radius-btn: 28px;
            --radius-pill: 999px;
            --radius-img: 12px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
            --shadow-glow: 0 0 16px rgba(25, 240, 184, 0.4);
            --transition: all 0.3s ease;
            --container-w: 1200px;
            --header-h: 72px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Helvetica Neue', sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 0.5em;
        }
        p {
            margin-bottom: 1rem;
            color: var(--text);
        }
        a {
            color: var(--accent);
            text-decoration: none;
            transition: color 0.3s ease, opacity 0.3s ease;
        }
        a:hover {
            color: var(--accent);
            opacity: 0.88;
        }
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            box-shadow: 0 0 0 4px rgba(25, 240, 184, 0.25);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul,
        ol {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        button {
            font-family: inherit;
            border: none;
            background: none;
            cursor: pointer;
            color: inherit;
        }
        input {
            font-family: inherit;
        }

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

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 44px;
            padding: 0 28px;
            border-radius: var(--radius-btn);
            font-size: 15px;
            font-weight: 600;
            line-height: 1;
            border: 1px solid transparent;
            cursor: pointer;
            text-decoration: none;
            transition: var(--transition);
            white-space: nowrap;
        }
        .btn-primary {
            background: linear-gradient(135deg, #19F0B8, #0DBE8F);
            color: #05261B;
            box-shadow: var(--shadow-glow);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 28px rgba(25, 240, 184, 0.6);
            opacity: 1;
            color: #05261B;
        }
        .btn-ghost {
            background: rgba(255, 255, 255, 0.06);
            color: var(--text);
            border-color: var(--stroke);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }
        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: rgba(255, 255, 255, 0.3);
            transform: translateY(-2px);
            opacity: 1;
            color: var(--text);
        }
        .btn-lg {
            height: 48px;
            padding: 0 36px;
            font-size: 16px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(5, 13, 23, 0.45);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--stroke);
            transition: var(--transition);
        }
        .site-header.scrolled {
            background: rgba(10, 27, 47, 0.92);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-h);
            gap: 16px;
        }
        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: var(--text);
            font-size: 19px;
            font-weight: 700;
            letter-spacing: 0.3px;
            line-height: 1.2;
            flex-shrink: 0;
        }
        .brand-logo i {
            font-size: 26px;
            color: var(--accent);
            filter: drop-shadow(0 0 8px rgba(25, 240, 184, 0.4));
        }
        .brand-logo:hover {
            color: var(--text);
            opacity: 1;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 24px;
        }
        .main-nav ul {
            display: flex;
            align-items: center;
            gap: 22px;
        }
        .main-nav ul li a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            padding: 6px 2px;
            position: relative;
            transition: color 0.3s ease;
        }
        .main-nav ul li a:hover {
            color: var(--accent);
            opacity: 1;
        }
        .main-nav ul li a.active {
            color: var(--accent);
        }
        .main-nav ul li a.active::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: -2px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            box-shadow: 0 0 8px rgba(25, 240, 184, 0.6);
        }
        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .search-toggle {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--text);
            font-size: 15px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--stroke);
            transition: var(--transition);
        }
        .search-toggle:hover {
            color: var(--accent);
            border-color: rgba(25, 240, 184, 0.4);
            background: rgba(25, 240, 184, 0.08);
        }
        .nav-cta {
            height: 40px;
            padding: 0 22px;
            font-size: 14px;
        }
        .mobile-menu-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 10px;
            align-items: center;
            justify-content: center;
            color: var(--text);
            font-size: 18px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--stroke);
            transition: var(--transition);
        }
        .mobile-menu-toggle:hover {
            color: var(--accent);
            border-color: rgba(25, 240, 184, 0.4);
        }

        /* ===== Category Hero ===== */
        .category-hero {
            position: relative;
            min-height: 470px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 140px 0 70px;
            overflow: hidden;
        }
        .hero-bg {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-size: cover;
            background-position: center;
            z-index: 0;
        }
        .hero-overlay {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(180deg, rgba(5, 13, 23, 0.78) 0%, rgba(5, 13, 23, 0.55) 55%, var(--bg) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            width: 100%;
        }
        .hero-content h1 {
            font-size: 40px;
            font-weight: 700;
            letter-spacing: 1px;
            margin-bottom: 14px;
        }
        .hero-content .lead {
            font-size: 17px;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }
        .hero-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ===== Sections ===== */
        .section {
            padding: 100px 0;
        }
        .section-alt {
            background: linear-gradient(180deg, rgba(10, 27, 47, 0.3), rgba(5, 13, 23, 0));
        }
        .section-dark {
            background: linear-gradient(180deg, rgba(10, 27, 47, 0.55), rgba(5, 13, 23, 0.25));
        }
        .section-head {
            text-align: center;
            max-width: 660px;
            margin: 0 auto 56px;
        }
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            letter-spacing: 2px;
            text-transform: uppercase;
            margin-bottom: 12px;
        }
        .section-head h2,
        .section h2 {
            font-size: 30px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .section-head p {
            font-size: 16px;
            color: var(--text-muted);
        }
        .section .feature-content p {
            color: var(--text-muted);
            font-size: 15px;
            line-height: 1.75;
        }

        /* ===== Feature image ===== */
        .feature-img {
            width: 100%;
            min-height: 320px;
            object-fit: cover;
            border-radius: var(--radius-card);
            border: 1px solid var(--stroke);
            box-shadow: var(--shadow-card);
        }
        .badge-row {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 18px;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 7px 16px;
            border-radius: var(--radius-pill);
            background: var(--glass);
            border: 1px solid var(--stroke);
            font-size: 13px;
            color: var(--text);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            transition: var(--transition);
        }
        .badge i {
            color: var(--accent);
            font-size: 14px;
        }
        .badge:hover {
            border-color: rgba(25, 240, 184, 0.4);
            background: rgba(25, 240, 184, 0.08);
        }

        /* ===== Check list ===== */
        .check-list {
            margin: 18px 0 0;
        }
        .check-list li {
            position: relative;
            padding: 7px 0 7px 30px;
            font-size: 15px;
            color: rgba(240, 247, 252, 0.82);
            line-height: 1.6;
        }
        .check-list li::before {
            content: '\f00c';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            left: 0;
            top: 7px;
            color: var(--accent);
            font-size: 14px;
        }

        /* ===== Steps ===== */
        .steps-grid .cell {
            margin-bottom: 24px;
        }
        .step-card {
            background: var(--glass);
            border: 1px solid var(--stroke);
            border-radius: var(--radius-card);
            padding: 32px 24px;
            height: 100%;
            text-align: center;
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            transition: var(--transition);
        }
        .step-card:hover {
            background: rgba(255, 255, 255, 0.09);
            border-color: rgba(25, 240, 184, 0.4);
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
        }
        .step-num {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(25, 240, 184, 0.12);
            border: 1px solid rgba(25, 240, 184, 0.25);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            color: var(--accent);
            margin: 0 auto 18px;
        }
        .step-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 10px;
        }
        .step-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            margin: 0;
        }

        /* ===== Services ===== */
        .services-grid .cell {
            margin-bottom: 24px;
        }
        .service-card {
            background: var(--glass);
            border: 1px solid var(--stroke);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            height: 100%;
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            transition: var(--transition);
        }
        .service-card:hover {
            background: rgba(255, 255, 255, 0.09);
            border-color: rgba(25, 240, 184, 0.4);
            transform: translateY(-4px);
            box-shadow: var(--shadow-card);
        }
        .service-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: linear-gradient(135deg, rgba(25, 240, 184, 0.22), rgba(13, 190, 143, 0.08));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--accent);
            margin-bottom: 16px;
        }
        .service-card h3 {
            font-size: 17px;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .service-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
            margin: 0;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--glass);
            border: 1px solid var(--stroke);
            border-radius: var(--radius-card);
            overflow: hidden;
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            transition: var(--transition);
        }
        .faq-item.open {
            border-color: rgba(25, 240, 184, 0.5);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            text-align: left;
            background: transparent;
            border: none;
            font-family: inherit;
            cursor: pointer;
            transition: background 0.3s ease;
        }
        .faq-question:hover {
            background: rgba(255, 255, 255, 0.03);
        }
        .faq-icon {
            flex-shrink: 0;
            margin-left: 14px;
            font-size: 16px;
            color: var(--accent);
            transition: transform 0.35s ease;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }
        .faq-answer-inner {
            padding: 0 24px 20px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            padding: 110px 0;
            text-align: center;
            background: linear-gradient(135deg, rgba(10, 27, 47, 0.92), rgba(5, 13, 23, 0.98));
            border-top: 1px solid var(--stroke);
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60%;
            max-width: 500px;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--accent), transparent);
            box-shadow: 0 0 20px rgba(25, 240, 184, 0.7);
        }
        .cta-section::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            z-index: 0;
            pointer-events: none;
        }
        .cta-content {
            position: relative;
            z-index: 1;
        }
        .cta-title {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .cta-sub {
            font-size: 15px;
            color: var(--text-muted);
            max-width: 520px;
            margin: 0 auto 28px;
        }
        .cta-note {
            font-size: 12px;
            color: rgba(147, 167, 191, 0.75);
            margin-top: 16px;
        }
        .cta-box {
            display: flex;
            align-items: center;
            gap: 24px;
            margin-top: 24px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .qr-box {
            width: 120px;
            height: 120px;
            border-radius: 16px;
            background: var(--glass);
            border: 1px solid var(--stroke);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 6px;
            color: var(--text-muted);
            font-size: 12px;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }
        .qr-box i {
            font-size: 36px;
            color: var(--accent);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: linear-gradient(180deg, rgba(5, 13, 23, 0.85), #020810);
            border-top: 1px solid var(--stroke);
            padding: 64px 0 28px;
        }
        .footer-brand {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin-bottom: 16px;
        }
        .footer-brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
        }
        .footer-brand-logo i {
            font-size: 22px;
            color: var(--accent);
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 260px;
        }
        .site-footer h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .site-footer ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .site-footer ul li {
            margin-bottom: 9px;
        }
        .site-footer ul li a {
            font-size: 14px;
            color: var(--text-muted);
            transition: color 0.3s ease;
        }
        .site-footer ul li a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid var(--stroke);
            margin-top: 40px;
            padding-top: 20px;
            text-align: center;
            font-size: 13px;
            color: rgba(147, 167, 191, 0.7);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1023px) {
            .main-nav {
                position: fixed;
                top: var(--header-h);
                right: 0;
                width: 300px;
                max-width: 90vw;
                background: rgba(5, 13, 23, 0.96);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                border-left: 1px solid var(--stroke);
                border-bottom: 1px solid var(--stroke);
                border-radius: 0 0 0 18px;
                padding: 24px;
                flex-direction: column;
                align-items: stretch;
                gap: 18px;
                transform: translateX(105%);
                transition: transform 0.35s ease;
                box-shadow: -8px 12px 40px rgba(0, 0, 0, 0.5);
            }
            .main-nav.open {
                transform: translateX(0);
            }
            .main-nav ul {
                flex-direction: column;
                align-items: stretch;
                gap: 6px;
            }
            .main-nav ul li a {
                display: block;
                padding: 10px 8px;
                font-size: 16px;
                border-radius: 8px;
            }
            .main-nav ul li a:hover {
                background: rgba(25, 240, 184, 0.08);
            }
            .main-nav ul li a.active::after {
                display: none;
            }
            .main-nav ul li a.active {
                background: rgba(25, 240, 184, 0.12);
            }
            .nav-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .nav-cta {
                width: 100%;
            }
            .search-toggle {
                display: none;
            }
            .mobile-menu-toggle {
                display: inline-flex;
            }
            .feature-img {
                min-height: 260px;
                margin-bottom: 24px;
            }
        }

        @media (max-width: 767px) {
            .container {
                padding: 0 18px;
            }
            .section {
                padding: 56px 0;
            }
            .category-hero {
                min-height: 380px;
                padding: 110px 0 45px;
            }
            .hero-content h1 {
                font-size: 28px;
                letter-spacing: 0.5px;
            }
            .hero-content .lead {
                font-size: 15px;
                margin-bottom: 24px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
                gap: 10px;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .section-head {
                margin-bottom: 40px;
            }
            .section-head h2,
            .section h2 {
                font-size: 24px;
            }
            .feature-img {
                min-height: 200px;
                border-radius: 14px;
            }
            .cta-section {
                padding: 64px 0;
            }
            .cta-title {
                font-size: 24px;
            }
            .cta-box {
                flex-direction: column;
                gap: 16px;
            }
            .qr-box {
                width: 100px;
                height: 100px;
            }
            .footer-bottom {
                font-size: 12px;
            }
            .grid-x .cell {
                margin-bottom: 24px;
            }
            .grid-x .cell:last-child {
                margin-bottom: 0;
            }
        }

        @media (max-width: 520px) {
            .brand-logo {
                font-size: 16px;
            }
            .brand-logo i {
                font-size: 22px;
            }
            .header-inner {
                gap: 8px;
            }
            .btn {
                padding: 0 20px;
                font-size: 14px;
            }
        }