/* roulang page: index */
:root {
  --bg-deep: #080D1E;
  --bg-main: #0B1026;
  --bg-soft: #101B3C;
  --primary: #2A7FFF;
  --cyan: #00E1FF;
  --green: #C8FF2E;
  --orange: #FF6A3D;
  --text-main: #EAF0FF;
  --text-sub: #93A0C4;
  --border-glass: rgba(255,255,255,0.12);
  --glass-bg: rgba(255,255,255,0.06);
  --radius-lg: 16px;
  --radius-sm: 12px;
  --shadow-card: 0 8px 32px rgba(0,0,0,0.35);
  --transition: 0.25s ease;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: linear-gradient(160deg, #0B1026 0%, #0E1634 50%, #101B3C 100%);
  background-attachment: fixed;
  color: var(--text-main);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--transition); }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
.grid-container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.grid-x > .cell { padding: 0; }
@media (max-width: 640px) { .grid-container { padding: 0 16px; } }
.section { padding: 80px 0; position: relative; }
@media (max-width: 640px) { .section { padding: 48px 0; } }
.section-head { margin-bottom: 40px; max-width: 720px; }
.section-tag {
  display: inline-block; font-size: 13px; font-weight: 600; color: var(--cyan);
  background: rgba(0,225,255,0.10); border: 1px solid rgba(0,225,255,0.25);
  padding: 4px 12px; border-radius: 999px; margin-bottom: 12px;
}
.section-title { font-size: 32px; font-weight: 700; color: #fff; line-height: 1.25; margin-bottom: 12px; }
.section-sub { font-size: 15px; color: var(--text-sub); line-height: 1.7; }
@media (max-width: 640px) { .section-title { font-size: 26px; } }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border-radius: 999px; font-weight: 600; font-size: 15px; height: 44px;
  padding: 0 28px; border: 1px solid transparent; background: transparent;
  cursor: pointer; transition: all var(--transition); line-height: 1;
  white-space: nowrap; color: #fff;
}
.btn:focus { outline: 2px solid rgba(0,225,255,0.6); outline-offset: 2px; }
.btn-primary { background: linear-gradient(135deg, #2A7FFF, #00C2FF); color: #fff; box-shadow: 0 4px 20px rgba(42,127,255,0.35); border: none; }
.btn-primary:hover { box-shadow: 0 6px 28px rgba(42,127,255,0.55); transform: translateY(-2px); filter: brightness(1.05); color: #fff; }
.btn-primary:active { transform: translateY(0); box-shadow: 0 2px 12px rgba(42,127,255,0.4); }
.btn-outline { border-color: rgba(255,255,255,0.35); color: #fff; background: transparent; }
.btn-outline:hover { border-color: var(--cyan); color: var(--cyan); box-shadow: 0 0 16px rgba(0,225,255,0.25); transform: translateY(-2px); }
.btn-outline:active { transform: translateY(0); }
.btn-sm { height: 38px; padding: 0 18px; font-size: 14px; }
.btn-lg { height: 52px; padding: 0 36px; font-size: 16px; }

.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(11,16,38,0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.header-inner { max-width: 1200px; margin: 0 auto; padding: 12px 24px; display: flex; flex-wrap: wrap; align-items: center; gap: 16px; }
.header-row1 { display: flex; align-items: center; gap: 24px; flex: 1; flex-wrap: wrap; min-width: 0; }
.site-logo { font-size: 20px; font-weight: 900; color: #fff; white-space: nowrap; letter-spacing: 0.5px; line-height: 1.2; }
.site-logo .logo-dot { color: var(--green); }
.site-logo:hover { color: var(--cyan); }
.search-wrap { flex: 1; max-width: 520px; margin-left: auto; position: relative; }
.search-wrap .search-icon {
  position: absolute; left: 16px; top: 50%; transform: translateY(-50%);
  color: var(--text-sub); font-size: 14px; pointer-events: none; z-index: 2;
}
.search-wrap input {
  width: 100%; height: 48px; border-radius: 999px;
  background: rgba(255,255,255,0.10); border: 1px solid rgba(255,255,255,0.15);
  padding: 0 16px 0 44px; font-size: 15px; color: #fff; outline: none;
  transition: all var(--transition);
}
.search-wrap input:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 16px rgba(42,127,255,0.45);
  background: rgba(255,255,255,0.14);
}
.search-wrap input::placeholder { color: #93A0C4; }
.header-actions { display: flex; align-items: center; gap: 12px; margin-left: auto; }
.nav-toggle {
  display: none; background: none; border: 1px solid rgba(255,255,255,0.15);
  color: #fff; font-size: 18px; width: 40px; height: 40px;
  border-radius: 10px; cursor: pointer; align-items: center; justify-content: center;
  transition: all var(--transition);
}
.nav-toggle:hover { border-color: var(--cyan); }
.site-nav { display: flex; align-items: center; gap: 24px; flex-wrap: wrap; padding: 8px 0 4px; width: 100%; }
.nav-link { font-size: 14px; font-weight: 500; color: var(--text-sub); padding: 6px 2px; position: relative; transition: color var(--transition); }
.nav-link:hover { color: #fff; }
.nav-link.active { color: var(--green); font-weight: 600; }
.nav-link.active::after { content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 2px; background: var(--green); border-radius: 2px; }
.nav-tag { font-size: 13px; color: var(--text-sub); background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.10); padding: 4px 12px; border-radius: 999px; transition: all var(--transition); }
.nav-tag:hover { border-color: var(--cyan); color: #fff; }
.nav-divider { width: 1px; height: 14px; background: rgba(255,255,255,0.12); }
@media (max-width: 768px) {
  .nav-toggle { display: inline-flex; }
  .header-row1 { gap: 12px; }
  .site-logo { font-size: 17px; }
  .search-wrap { order: 3; flex: 0 0 100%; max-width: none; }
  .site-nav { display: none; flex-direction: column; align-items: stretch; gap: 10px; padding: 12px 0; border-top: 1px solid rgba(255,255,255,0.08); margin-top: 4px; }
  .site-nav.open { display: flex; }
  .nav-link { padding: 10px 4px; }
  .nav-link.active::after { bottom: 4px; }
  .nav-divider { display: none; }
}

.hero {
  position: relative; overflow: hidden;
  background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  min-height: 620px; display: flex; align-items: center;
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(11,16,38,0.92) 0%, rgba(11,16,38,0.72) 55%, rgba(11,16,38,0.38) 100%);
}
.hero::after {
  content: ''; position: absolute; inset: 0;
  background-image: repeating-linear-gradient(115deg, rgba(255,255,255,0.06) 0, rgba(255,255,255,0.06) 1px, transparent 2px, transparent 8px);
  opacity: 0.5; pointer-events: none;
}
.hero-content { position: relative; z-index: 2; padding: 80px 0 40px; max-width: 680px; }
.hero-pill {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(200,255,46,0.12); border: 1px solid rgba(200,255,46,0.3);
  color: var(--green); font-size: 13px; font-weight: 600;
  border-radius: 999px; padding: 6px 14px; margin-bottom: 20px;
}
.hero-title { font-size: 52px; line-height: 1.15; font-weight: 900; color: #fff; letter-spacing: -0.5px; margin-bottom: 18px; }
.hero-desc { font-size: 18px; color: var(--text-sub); max-width: 560px; margin-bottom: 32px; line-height: 1.7; }
.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-stats { position: relative; z-index: 2; padding-bottom: 36px; }
.stats-row {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
  margin-top: 48px; background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12); border-radius: var(--radius-lg);
  padding: 20px 24px; backdrop-filter: blur(10px);
}
.stat-num {
  font-size: 34px; font-weight: 800; color: var(--green);
  font-variant-numeric: tabular-nums; line-height: 1.2;
}
.stat-label { font-size: 13px; color: var(--text-sub); margin-top: 4px; }
@media (max-width: 1024px) {
  .hero { min-height: 540px; }
  .hero-title { font-size: 40px; }
}
@media (max-width: 640px) {
  .hero-title { font-size: 30px; }
  .hero-desc { font-size: 16px; }
  .hero-content { padding-top: 60px; padding-bottom: 24px; }
  .stats-row { grid-template-columns: repeat(2, 1fr); gap: 12px; padding: 16px; }
  .stat-num { font-size: 24px; }
}

.feature-grid { display: grid; grid-template-columns: 1.2fr 1fr 1fr; grid-auto-rows: minmax(150px, auto); gap: 20px; }
.feature-card {
  background: var(--glass-bg); border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg); padding: 28px; position: relative;
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  box-shadow: var(--shadow-card); transition: all var(--transition); overflow: hidden;
}
.feature-card::before {
  content: ''; position: absolute; top: 0; left: 16px; right: 16px; height: 1px;
  background: linear-gradient(90deg, rgba(255,255,255,0.15), rgba(255,255,255,0));
  border-radius: 999px;
}
.feature-card:hover { transform: translateY(-4px); border-color: rgba(0,225,255,0.5); box-shadow: 0 12px 40px rgba(0,0,0,0.45); }
.feature-icon {
  width: 56px; height: 56px; border-radius: 14px;
  background: rgba(0,225,255,0.12); display: flex; align-items: center; justify-content: center;
  color: var(--cyan); font-size: 22px; margin-bottom: 18px;
  transition: background var(--transition), color var(--transition);
}
.feature-card:hover .feature-icon { background: rgba(0,225,255,0.22); color: #fff; }
.feature-card h3 { font-size: 18px; font-weight: 600; color: #fff; margin-bottom: 8px; }
.feature-card p { font-size: 14px; color: var(--text-sub); line-height: 1.65; }
.feature-large {
  grid-row: span 2;
  background: linear-gradient(145deg, rgba(42,127,255,0.14), rgba(0,225,255,0.05));
  display: flex; flex-direction: column; justify-content: center;
}
.feature-large h3 { font-size: 22px; }
.feature-large p { font-size: 15px; }
@media (max-width: 1024px) { .feature-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 640px) {
  .feature-grid { grid-template-columns: 1fr; }
  .feature-large { grid-row: auto; }
}

.scenario-block { display: flex; align-items: center; gap: 48px; margin-bottom: 80px; }
.scenario-block:last-child { margin-bottom: 0; }
.scenario-block.reverse { flex-direction: row-reverse; }
.scenario-media {
  flex: 1; position: relative; border-radius: var(--radius-lg);
  overflow: hidden; border: 1px solid var(--border-glass); box-shadow: var(--shadow-card);
}
.scenario-media img { width: 100%; height: 340px; object-fit: cover; }
.scenario-media::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 60%, rgba(11,16,38,0.72)); }
.scenario-badge {
  position: absolute; top: 16px; left: 16px; z-index: 2;
  background: rgba(11,16,38,0.72); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(200,255,46,0.35); color: var(--green);
  font-size: 13px; font-weight: 600; padding: 6px 14px; border-radius: 999px;
}
.scenario-content { flex: 1; }
.scenario-pill {
  display: inline-block; font-size: 13px; font-weight: 600; color: var(--cyan);
  background: rgba(0,225,255,0.10); border: 1px solid rgba(0,225,255,0.25);
  padding: 4px 12px; border-radius: 999px; margin-bottom: 12px;
}
.scenario-content h3 { font-size: 26px; font-weight: 700; color: #fff; margin-bottom: 12px; line-height: 1.3; }
.scenario-content p { color: var(--text-sub); line-height: 1.7; margin-bottom: 20px; }
.scenario-list { list-style: none; padding: 0; margin: 0 0 20px; }
.scenario-list li { display: flex; gap: 10px; align-items: flex-start; color: var(--text-main); font-size: 14px; margin-bottom: 10px; }
.scenario-list li i { color: var(--green); margin-top: 4px; }
.link-arrow { color: var(--cyan); font-weight: 600; font-size: 14px; display: inline-flex; align-items: center; gap: 8px; transition: gap var(--transition), color var(--transition); }
.link-arrow:hover { gap: 12px; color: #fff; }
@media (max-width: 768px) {
  .scenario-block { flex-direction: column !important; gap: 24px; margin-bottom: 56px; }
  .scenario-media img { height: 220px; }
  .scenario-content h3 { font-size: 22px; }
}

.stats-proof { background: rgba(255,255,255,0.04); border-top: 1px solid rgba(255,255,255,0.08); border-bottom: 1px solid rgba(255,255,255,0.08); }
.proof-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; margin-bottom: 48px; }
.proof-item {
  text-align: center; padding: 24px; background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08); border-radius: var(--radius-lg);
}
.proof-num { font-size: 56px; font-weight: 800; color: var(--green); font-variant-numeric: tabular-nums; line-height: 1.2; }
.proof-label { color: var(--text-sub); font-size: 14px; margin-top: 8px; }
.testimonials { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.testimonial-card {
  position: relative; background: var(--glass-bg);
  border: 1px solid var(--border-glass); border-left: 3px solid var(--cyan);
  border-radius: var(--radius-sm); padding: 24px 22px;
}
.testimonial-card .quote { position: absolute; top: 10px; right: 16px; font-size: 40px; color: rgba(255,255,255,0.08); font-family: Georgia, serif; line-height: 1; }
.testimonial-card p { font-size: 14px; color: var(--text-main); line-height: 1.7; margin-bottom: 16px; }
.testimonial-card .who { font-size: 13px; color: var(--text-sub); }
@media (max-width: 768px) {
  .proof-grid { grid-template-columns: 1fr; gap: 16px; }
  .testimonials { grid-template-columns: 1fr; }
  .proof-num { font-size: 44px; }
}

.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; align-items: stretch; }
.pricing-card {
  position: relative; background: var(--glass-bg); border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg); padding: 32px 28px; box-shadow: var(--shadow-card);
  transition: all var(--transition);
}
.pricing-card:hover { transform: translateY(-4px); border-color: rgba(42,127,255,0.5); }
.pricing-card.featured {
  background: linear-gradient(160deg, rgba(42,127,255,0.18), rgba(0,225,255,0.08));
  transform: scale(1.03); border-color: rgba(200,255,46,0.4);
  box-shadow: 0 16px 48px rgba(42,127,255,0.25);
}
.pricing-card.featured:hover { transform: scale(1.03) translateY(-4px); }
.pricing-badge {
  position: absolute; top: -12px; right: 20px; background: var(--green);
  color: #0B1026; font-size: 12px; font-weight: 700; padding: 4px 12px; border-radius: 999px;
}
.pricing-card h3 { font-size: 18px; font-weight: 600; color: #fff; margin-bottom: 6px; }
.pricing-price { font-size: 34px; font-weight: 800; color: #fff; margin-bottom: 16px; }
.pricing-price span { font-size: 14px; color: var(--text-sub); font-weight: 400; margin-left: 4px; }
.pricing-list { list-style: none; padding: 0; margin: 0 0 24px; }
.pricing-list li { display: flex; gap: 10px; font-size: 14px; color: var(--text-main); padding: 6px 0; border-bottom: 1px dashed rgba(255,255,255,0.08); }
.pricing-list li i { color: var(--green); margin-top: 4px; }
@media (max-width: 768px) {
  .pricing-grid { grid-template-columns: 1fr; }
  .pricing-card.featured { transform: none; }
  .pricing-card.featured:hover { transform: translateY(-4px); }
}

.news-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.news-card {
  display: block; background: var(--glass-bg); border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg); overflow: hidden; transition: all var(--transition);
  height: 100%;
}
.news-card:hover { transform: translateY(-4px); border-color: rgba(0,225,255,0.5); box-shadow: 0 12px 40px rgba(0,0,0,0.4); }
.news-cover {
  position: relative; aspect-ratio: 16/9; background: linear-gradient(135deg, #2A7FFF, #00E1FF);
  display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,0.6); font-size: 32px;
}
.news-cover::before {
  content: ''; position: absolute; inset: 0;
  background: repeating-linear-gradient(115deg, rgba(255,255,255,0.04) 0 1px, transparent 1px 10px);
}
.news-body { padding: 20px; }
.news-cat {
  display: inline-block; background: rgba(200,255,46,0.12); color: var(--green);
  font-size: 12px; font-weight: 600; padding: 3px 10px; border-radius: 999px; margin-bottom: 10px;
}
.news-title {
  font-size: 17px; font-weight: 600; color: #fff; line-height: 1.4; margin-bottom: 8px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.news-summary {
  font-size: 14px; color: var(--text-sub); line-height: 1.6; margin-bottom: 14px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.news-meta { display: flex; justify-content: space-between; align-items: center; font-size: 13px; color: var(--text-sub); }
.read-more { color: var(--cyan); font-weight: 600; display: inline-flex; align-items: center; gap: 6px; }
.news-card:hover .read-more { gap: 10px; }
.empty-state {
  grid-column: 1 / -1; text-align: center; padding: 60px 20px;
  border: 1px dashed rgba(255,255,255,0.2); border-radius: var(--radius-lg);
  background: rgba(255,255,255,0.02);
}
.empty-state i { font-size: 36px; color: var(--text-sub); margin-bottom: 12px; }
.empty-state p { color: var(--text-main); font-size: 15px; margin-bottom: 6px; }
.empty-state .empty-sub { font-size: 12px; color: var(--text-sub); }
@media (max-width: 640px) { .news-grid { grid-template-columns: 1fr; } }

.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { background: var(--glass-bg); border: 1px solid var(--border-glass); border-radius: var(--radius-sm); margin-bottom: 12px; overflow: hidden; transition: all var(--transition); }
.faq-item.open { border-color: rgba(0,225,255,0.5); background: rgba(255,255,255,0.09); border-left: 3px solid var(--cyan); }
.faq-q {
  width: 100%; text-align: left; background: none; border: none;
  color: var(--text-main); font-size: 16px; font-weight: 600;
  padding: 18px 22px; cursor: pointer; display: flex;
  justify-content: space-between; align-items: center; gap: 12px; transition: color var(--transition);
}
.faq-q:hover { color: #fff; }
.faq-q:focus { outline: 2px solid rgba(0,225,255,0.5); outline-offset: -2px; }
.faq-icon {
  width: 22px; height: 22px; border-radius: 50%;
  background: rgba(0,225,255,0.12); color: var(--cyan);
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 600; transition: transform 0.3s; flex-shrink: 0;
}
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-a { display: none; padding: 0 22px 18px; color: var(--text-sub); font-size: 14px; line-height: 1.7; }
.faq-item.open .faq-a { display: block; }

.cta-section {
  position: relative; overflow: hidden;
  background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  padding: 80px 0;
}
.cta-section::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse at center, rgba(42,127,255,0.35), rgba(11,16,38,0.85));
}
.cta-content { position: relative; z-index: 2; text-align: center; max-width: 640px; margin: 0 auto; padding: 0 16px; }
.cta-title { font-size: 32px; font-weight: 700; color: #fff; margin-bottom: 12px; line-height: 1.3; }
.cta-sub { color: var(--text-sub); margin-bottom: 28px; font-size: 16px; }
@media (max-width: 640px) { .cta-title { font-size: 26px; } .cta-section { padding: 60px 0; } }

.site-footer { background: #080D1E; border-top: 1px solid rgba(255,255,255,0.08); padding: 60px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; padding-bottom: 40px; }
.footer-brand .footer-logo { font-size: 20px; font-weight: 900; color: #fff; margin-bottom: 12px; display: inline-block; }
.footer-brand p { font-size: 14px; color: var(--text-sub); line-height: 1.7; }
.footer-col h4 { font-size: 15px; font-weight: 600; color: #fff; margin-bottom: 16px; }
.footer-col a { display: block; color: var(--text-sub); font-size: 14px; padding: 5px 0; transition: color var(--transition); }
.footer-col a:hover { color: var(--cyan); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08); padding: 20px 0;
  display: flex; justify-content: space-between; align-items: center;
  font-size: 13px; color: var(--text-sub); flex-wrap: wrap; gap: 8px;
}
@media (max-width: 768px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .footer-grid { grid-template-columns: 1fr; } }

/* roulang page: category1 */
:root{
  --bg-dark:#0B1026;
  --bg-blue:#101B3C;
  --bg-deep:#080D1E;
  --primary:#2A7FFF;
  --cyan:#00E1FF;
  --green:#C8FF2E;
  --orange:#FF6A3D;
  --text-main:#EAF0FF;
  --text-sub:#93A0C4;
  --glass-bg:rgba(255,255,255,.06);
  --glass-border:rgba(255,255,255,.12);
  --glass-hl:rgba(255,255,255,.15);
  --radius-lg:16px;
  --radius-sm:12px;
  --shadow-lg:0 8px 32px rgba(0,0,0,.35);
  --shadow-md:0 4px 20px rgba(0,0,0,.25);
  --transition:.25s ease;
  --section-space:80px;
  --section-space-mobile:48px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:linear-gradient(135deg,var(--bg-dark) 0%,var(--bg-blue) 55%,#0D142E 100%);
  background-attachment:fixed;
  color:var(--text-main);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none;transition:color var(--transition)}
img{max-width:100%;height:auto;display:block}
button,input,select,textarea{font-family:inherit;font-size:inherit}
ul,ol{list-style:none}
h1,h2,h3,h4,h5{line-height:1.3;font-weight:700;letter-spacing:.3px}
.grid-container{max-width:1200px;padding-left:24px;padding-right:24px}
@media(max-width:640px){
  .grid-container{padding-left:16px;padding-right:16px}
}
/* Buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 32px;border-radius:999px;font-weight:600;font-size:16px;
  border:1px solid transparent;cursor:pointer;transition:all var(--transition);
  line-height:1.2;white-space:nowrap;letter-spacing:.5px;
}
.btn:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
.btn-primary{
  background:linear-gradient(135deg,#2775FF,#00B8FF);
  color:#fff;box-shadow:0 0 24px rgba(42,127,255,.4),inset 0 1px 0 rgba(255,255,255,.2);
}
.btn-primary:hover{
  transform:translateY(-2px);box-shadow:0 0 36px rgba(0,225,255,.55),inset 0 1px 0 rgba(255,255,255,.25);
  background:linear-gradient(135deg,#1F6EFF,#00CFFF);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 16px rgba(42,127,255,.5)}
.btn-outline{
  background:transparent;border-color:rgba(255,255,255,.45);color:var(--text-main);
}
.btn-outline:hover{
  border-color:var(--cyan);color:var(--cyan);background:rgba(0,225,255,.08);
  transform:translateY(-2px);box-shadow:0 0 20px rgba(0,225,255,.15);
}
.btn-outline:active{transform:translateY(0)}
.btn-sm{padding:9px 22px;font-size:14px}
@media(max-width:640px){
  .btn{padding:12px 24px;font-size:15px}
}
/* Section common */
section{padding:var(--section-space) 0;position:relative}
@media(max-width:640px){
  section{padding:var(--section-space-mobile) 0}
}
.section-header{text-align:center;max-width:720px;margin:0 auto 52px}
.section-header h2{font-size:32px;font-weight:800;margin-bottom:14px}
.section-header p{color:var(--text-sub);font-size:16px}
.section-tag{
  display:inline-flex;align-items:center;gap:8px;padding:6px 18px;border-radius:999px;
  background:rgba(200,255,46,.1);border:1px solid rgba(200,255,46,.25);
  color:var(--green);font-size:13px;font-weight:600;letter-spacing:1px;margin-bottom:18px;
}
.section-tag::before{content:'';width:6px;height:6px;background:var(--green);border-radius:50%}
.section-label{
  display:inline-block;padding:4px 14px;border-radius:6px;background:rgba(0,225,255,.1);
  border:1px solid rgba(0,225,255,.2);color:var(--cyan);font-size:13px;font-weight:600;
  letter-spacing:1px;margin-bottom:14px;
}
/* Header */
.site-header{
  position:sticky;top:0;z-index:200;
  background:rgba(11,16,38,.85);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.header-inner{max-width:1200px;margin:0 auto;padding:0 24px}
.header-row1{display:flex;align-items:center;gap:20px;padding:14px 0}
.site-logo{
  font-size:24px;font-weight:900;color:#fff;letter-spacing:.5px;white-space:nowrap;
  display:flex;align-items:baseline;gap:4px;flex-shrink:0;
}
.logo-dot{color:var(--green);font-weight:800;font-size:20px}
.search-wrap{
  flex:1;max-width:520px;margin:0 auto;position:relative;display:flex;align-items:center;
}
.search-icon{position:absolute;left:18px;color:var(--text-sub);font-size:15px;pointer-events:none;z-index:1}
.search-wrap input{
  width:100%;height:48px;border-radius:999px;border:1px solid rgba(255,255,255,.15);
  background:rgba(255,255,255,.1);color:var(--text-main);padding:0 50px 0 46px;
  font-size:15px;transition:all var(--transition);outline:none;
  -webkit-appearance:none;appearance:none;
}
.search-wrap input::placeholder{color:#8A97BE}
.search-wrap input:focus{
  border-color:var(--cyan);box-shadow:0 0 16px rgba(42,127,255,.45);background:rgba(255,255,255,.14);
}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.nav-toggle{
  display:none;background:none;border:1px solid rgba(255,255,255,.2);color:var(--text-main);
  width:44px;height:44px;border-radius:12px;cursor:pointer;font-size:18px;
  transition:all var(--transition);align-items:center;justify-content:center;
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan)}
.site-nav{
  display:flex;align-items:center;gap:8px;padding:0 0 14px;flex-wrap:wrap;
}
.site-nav .nav-link{
  padding:8px 18px;border-radius:999px;font-size:15px;font-weight:500;color:var(--text-sub);
  transition:all var(--transition);position:relative;
}
.site-nav .nav-link:hover{color:var(--cyan);background:rgba(0,225,255,.08)}
.site-nav .nav-link.active{
  color:var(--green);background:rgba(200,255,46,.1);font-weight:600;
}
.site-nav .nav-link.active::after{
  content:'';position:absolute;left:18px;right:18px;bottom:2px;height:2px;border-radius:2px;
  background:var(--green);opacity:.8;
}
.nav-divider{width:1px;height:20px;background:rgba(255,255,255,.15);margin:0 6px}
.nav-tag{
  padding:6px 14px;border-radius:999px;font-size:13px;color:var(--text-sub);
  border:1px solid transparent;transition:all var(--transition);white-space:nowrap;
}
.nav-tag:hover{color:var(--cyan);border-color:rgba(0,225,255,.3);background:rgba(0,225,255,.06)}
@media(max-width:1024px){
  .search-wrap{max-width:380px}
  .site-nav .nav-link{padding:8px 12px;font-size:14px}
}
@media(max-width:768px){
  .header-row1{flex-wrap:wrap;gap:12px}
  .search-wrap{order:3;flex:0 0 100%;max-width:100%}
  .nav-toggle{display:flex}
  .site-nav{
    display:none;flex-direction:column;align-items:flex-start;padding:0 0 20px;gap:6px;
  }
  .site-nav.open{display:flex;animation:fadeInDown .3s ease}
  .site-nav .nav-link{width:100%;border-radius:10px;padding:10px 14px}
  .site-nav .nav-link.active::after{display:none}
  .site-nav .nav-divider{display:none}
  .nav-tag{margin-left:0;border-color:rgba(255,255,255,.12)}
}
@keyframes fadeInDown{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}
/* Hero */
.hero-section{
  position:relative;padding:100px 0 90px;overflow:hidden;
  background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
}
.hero-section::before{
  content:'';position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(11,16,38,.97) 0%,rgba(11,16,38,.88) 35%,rgba(16,27,60,.62) 70%,rgba(16,27,60,.35) 100%);
  z-index:1;
}
.hero-section::after{
  content:'';position:absolute;inset:0;z-index:2;pointer-events:none;
  background:repeating-linear-gradient(60deg,transparent 0,transparent 14px,rgba(255,255,255,.03) 14px,rgba(255,255,255,.03) 15px);
  opacity:.5;
}
.hero-inner{position:relative;z-index:3}
.hero-content{max-width:720px;padding-top:30px}
.hero-pill{
  display:inline-flex;align-items:center;gap:8px;padding:5px 16px;border-radius:999px;
  background:rgba(200,255,46,.15);border:1px solid rgba(200,255,46,.4);
  color:var(--green);font-size:13px;font-weight:700;letter-spacing:1.5px;margin-bottom:24px;
}
.hero-pill::before{content:'⚡';font-size:14px}
.hero-content h1{
  font-size:49px;font-weight:900;line-height:1.2;margin-bottom:22px;letter-spacing:1px;
  color:#fff;
}
.hero-content h1 .hero-highlight{
  background:linear-gradient(90deg,var(--green),#8AE600);-webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
}
.hero-subtitle{font-size:19px;color:rgba(234,240,255,.85);line-height:1.7;margin-bottom:36px;max-width:540px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:60px}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  border-top:1px solid rgba(255,255,255,.12);
  padding-top:34px;
}
.stat-item{text-align:left;position:relative}
.stat-item + .stat-item::before{
  content:'';position:absolute;left:-12px;top:10%;height:80%;width:1px;background:rgba(255,255,255,.1);
}
.stat-num{
  display:block;font-size:40px;font-weight:900;color:var(--green);line-height:1.1;
  font-variant-numeric:tabular-nums;letter-spacing:.5px;margin-bottom:4px;
}
.stat-label{font-size:14px;color:var(--text-sub)}
@media(max-width:1024px){
  .hero-section{padding:80px 0}
  .hero-content h1{font-size:42px}
}
@media(max-width:640px){
  .hero-section{padding:60px 0}
  .hero-content h1{font-size:32px}
  .hero-subtitle{font-size:16px}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:20px}
  .stat-item:nth-child(3)::before{display:none}
  .stat-num{font-size:30px}
}
/* Intro */
.intro-section{
  background:linear-gradient(180deg,transparent,rgba(255,255,255,.02));
}
.intro-section .intro-text h2{font-size:34px;font-weight:800;margin-bottom:18px}
.intro-section .intro-text p{
  color:var(--text-sub);font-size:16px;line-height:1.85;margin-bottom:20px;
}
.intro-points{
  display:grid;gap:12px;margin-top:24px;
}
.intro-point{
  display:flex;align-items:center;gap:12px;color:var(--text-main);font-size:15px;
}
.intro-point i{
  width:30px;height:30px;border-radius:8px;background:rgba(0,225,255,.12);
  color:var(--cyan);display:flex;align-items:center;justify-content:center;font-size:13px;flex-shrink:0;
}
.intro-media{position:relative}
.intro-media img{
  border-radius:20px;box-shadow:var(--shadow-lg);border:1px solid var(--glass-border);
}
.intro-media::before{
  content:'';position:absolute;top:-20px;right:-20px;width:80px;height:80px;
  border:2px solid rgba(0,225,255,.2);border-radius:16px;transform:rotate(45deg);z-index:-1;
}
@media(max-width:640px){
  .intro-section .intro-text h2{font-size:28px}
  .intro-media{margin-top:32px}
}
/* Features */
.features-section{background:rgba(255,255,255,.015);border-top:1px solid rgba(255,255,255,.05);border-bottom:1px solid rgba(255,255,255,.05)}
.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.feature-card{
  background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius-lg);
  padding:34px;position:relative;overflow:hidden;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  box-shadow:var(--shadow-lg);transition:all var(--transition);
}
.feature-card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.25),transparent);
}
.feature-card::after{
  content:'';position:absolute;top:24px;right:24px;width:34px;height:34px;
  border:1px solid rgba(0,225,255,.15);transform:rotate(45deg);border-radius:6px;transition:all var(--transition);
}
.feature-card:hover{
  transform:translateY(-4px);border-color:rgba(0,225,255,.5);
  box-shadow:0 16px 44px rgba(0,0,0,.4),0 0 24px rgba(0,225,255,.1);
}
.feature-card:hover::after{border-color:rgba(0,225,255,.4);transform:rotate(135deg)}
.feature-icon{
  width:56px;height:56px;border-radius:14px;background:rgba(0,225,255,.12);
  display:flex;align-items:center;justify-content:center;color:var(--cyan);
  font-size:22px;margin-bottom:20px;transition:all var(--transition);
}
.feature-card:hover .feature-icon{background:rgba(0,225,255,.22);box-shadow:0 0 20px rgba(0,225,255,.2)}
.feature-card h3{font-size:19px;font-weight:700;margin-bottom:12px}
.feature-card p{color:var(--text-sub);font-size:15px;line-height:1.75}
.feature-card .feature-more{
  display:inline-flex;align-items:center;gap:6px;color:var(--cyan);font-size:14px;
  font-weight:600;margin-top:18px;transition:gap var(--transition);
}
.feature-card .feature-more:hover{gap:10px;color:var(--green)}
@media(max-width:1024px){
  .feature-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  .feature-grid{grid-template-columns:1fr}
  .feature-card{padding:26px}
}
/* Process */
.process-section{position:relative}
.process-section::before{
  content:'';position:absolute;top:0;right:10%;width:100px;height:100px;
  border:2px solid rgba(200,255,46,.08);border-radius:20px;transform:rotate(45deg);z-index:0;
}
.process-timeline{
  position:relative;max-width:820px;margin:0 auto;z-index:1;
}
.process-timeline::before{
  content:'';position:absolute;left:120px;top:20px;bottom:20px;width:2px;
  background:linear-gradient(180deg,var(--primary),var(--cyan),transparent);opacity:.5;
}
.process-step{
  display:flex;gap:0;position:relative;padding:20px 0;flex-wrap:wrap;
}
.process-node{
  flex:0 0 120px;display:flex;justify-content:center;align-items:flex-start;position:relative;z-index:1;
}
.process-dot{
  width:34px;height:34px;border-radius:50%;background:var(--bg-dark);
  border:2px solid var(--cyan);display:flex;align-items:center;justify-content:center;
  color:var(--cyan);font-size:14px;font-weight:700;box-shadow:0 0 16px rgba(0,225,255,.35);
}
.process-card{
  flex:1;min-width:280px;background:var(--glass-bg);border:1px solid var(--glass-border);
  border-radius:var(--radius-lg);padding:26px 30px;margin-left:24px;text-align:left;
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);transition:border-color var(--transition);
}
.process-card:hover{border-color:rgba(0,225,255,.4)}
.process-card .step-num{font-size:13px;color:var(--green);font-weight:700;letter-spacing:1px;margin-bottom:6px}
.process-card h3{font-size:18px;font-weight:700;margin-bottom:8px}
.process-card p{color:var(--text-sub);font-size:14px;line-height:1.7}
@media(max-width:640px){
  .process-timeline::before{left:17px;top:20px;bottom:20px}
  .process-step{flex-direction:column;padding:16px 0}
  .process-node{flex:0 0 auto;justify-content:flex-start}
  .process-dot{width:34px;height:34px}
  .process-card{margin-left:24px;width:calc(100% - 24px);padding:20px}
}
/* Scenarios */
.scenarios-section{background:rgba(255,255,255,.015);border-top:1px solid rgba(255,255,255,.05);border-bottom:1px solid rgba(255,255,255,.05)}
.scenario-row{
  background:var(--glass-bg);border:1px solid var(--glass-border);
  border-radius:var(--radius-lg);overflow:hidden;margin-bottom:24px;
  display:flex;align-items:center;transition:all var(--transition);backdrop-filter:blur(8px);
}
.scenario-row:hover{border-color:rgba(0,225,255,.4);transform:translateY(-3px)}
.scenario-media{flex:1;position:relative;overflow:hidden;min-height:220px}
.scenario-media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.scenario-media::after{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(11,16,38,.6),transparent)}
.scenario-body{flex:1;padding:38px;position:relative;z-index:1}
.scenario-pill{
  display:inline-block;padding:4px 14px;border-radius:999px;background:rgba(200,255,46,.1);
  border:1px solid rgba(200,255,46,.25);color:var(--green);font-size:12px;font-weight:600;margin-bottom:14px;
}
.scenario-body h3{font-size:24px;font-weight:800;margin-bottom:12px}
.scenario-body p{color:var(--text-sub);font-size:15px;line-height:1.8;margin-bottom:18px}
.scenario-link{
  color:var(--cyan);font-weight:600;font-size:15px;display:inline-flex;align-items:center;gap:6px;
  transition:gap var(--transition),color var(--transition);
}
.scenario-link:hover{gap:12px;color:var(--green)}
@media(max-width:768px){
  .scenario-row{flex-direction:column}
  .scenario-media{width:100%;min-height:180px}
  .scenario-media img{position:relative}
  .scenario-body{padding:26px}
  .scenario-body h3{font-size:20px}
}
/* Latest */
.latest-section{}
.latest-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.latest-card{
  display:flex;flex-direction:column;background:var(--glass-bg);border:1px solid var(--glass-border);
  border-radius:var(--radius-lg);overflow:hidden;transition:all var(--transition);
  backdrop-filter:blur(8px);
}
.latest-card:hover{
  transform:translateY(-5px);border-color:rgba(0,225,255,.45);
  box-shadow:0 16px 40px rgba(0,0,0,.35),0 0 20px rgba(0,225,255,.08);
}
.latest-cover{position:relative;aspect-ratio:16/9;overflow:hidden}
.latest-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.latest-card:hover .latest-cover img{transform:scale(1.05)}
.latest-cover::after{
  content:'';position:absolute;inset:0;background:linear-gradient(180deg,transparent 55%,rgba(11,16,38,.85));
}
.latest-pill{
  position:absolute;top:16px;left:16px;z-index:2;padding:4px 14px;border-radius:999px;
  background:rgba(200,255,46,.15);backdrop-filter:blur(6px);color:var(--green);
  font-size:12px;font-weight:600;border:1px solid rgba(200,255,46,.3);
}
.latest-body{padding:24px;display:flex;flex-direction:column;flex:1}
.latest-body h3{font-size:18px;font-weight:700;margin-bottom:10px;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.latest-body p{color:var(--text-sub);font-size:14px;line-height:1.7;margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.latest-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  padding-top:16px;border-top:1px solid rgba(255,255,255,.08);
}
.latest-time{font-size:13px;color:var(--text-sub)}
.latest-more{font-size:14px;color:var(--cyan);font-weight:600}
.latest-more:hover{color:var(--green)}
@media(max-width:640px){
  .latest-grid{grid-template-columns:1fr}
}
/* Pricing */
.pricing-section{background:radial-gradient(ellipse at 80% 20%,rgba(42,127,255,.12),transparent 60%),linear-gradient(180deg,rgba(255,255,255,.015),transparent)}
.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch;max-width:960px;margin:0 auto}
.price-card{
  background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius-lg);
  padding:36px 32px;position:relative;transition:all var(--transition);display:flex;flex-direction:column;
  backdrop-filter:blur(8px);
}
.price-card:hover{transform:translateY(-4px);border-color:rgba(0,225,255,.4);box-shadow:var(--shadow-lg)}
.price-card .price-name{font-size:18px;font-weight:600;color:var(--text-main);margin-bottom:8px}
.price-card .price-desc{font-size:14px;color:var(--text-sub);margin-bottom:22px;min-height:44px}
.price-card .price-amount{font-size:40px;font-weight:900;color:var(--text-main);margin-bottom:22px;font-variant-numeric:tabular-nums}
.price-card .price-amount small{font-size:15px;font-weight:500;color:var(--text-sub)}
.price-card ul{flex:1;margin-bottom:28px}
.price-card li{
  display:flex;align-items:center;gap:10px;color:var(--text-main);font-size:14px;
  padding:7px 0;line-height:1.6;
}
.price-card li i{color:var(--green);font-size:13px;flex-shrink:0}
.price-badge{
  position:absolute;top:-13px;right:24px;background:var(--green);color:#082032;
  font-size:12px;font-weight:800;padding:4px 16px;border-radius:999px;letter-spacing:1px;
  box-shadow:0 4px 16px rgba(200,255,46,.4);
}
.price-card.featured{
  transform:scale(1.03);border-color:rgba(0,225,255,.4);
  background:linear-gradient(160deg,rgba(0,225,255,.08),rgba(42,127,255,.05));
}
.price-card.featured:hover{transform:scale(1.03) translateY(-4px)}
@media(max-width:1024px){
  .pricing-grid{grid-template-columns:1fr;max-width:480px}
  .price-card.featured{transform:none}
  .price-card.featured:hover{transform:translateY(-4px)}
}
/* FAQ */
.faq-section{background:rgba(255,255,255,.015);border-top:1px solid rgba(255,255,255,.05)}
.faq-wrap{max-width:820px;margin:0 auto}
.accordion-custom .accordion-item{
  background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius-sm);
  margin-bottom:14px;overflow:hidden;transition:all var(--transition);
  backdrop-filter:blur(8px);
}
.accordion-custom .accordion-item:hover{border-color:rgba(0,225,255,.25)}
.accordion-custom .accordion-item:first-child>a{border-radius:var(--radius-sm) var(--radius-sm) 0 0}
.accordion-custom .accordion-item:last-child>a{border-radius:0 0 var(--radius-sm) var(--radius-sm)}
.accordion-custom .accordion-title{
  display:block;padding:20px 24px;color:var(--text-main);font-size:16px;font-weight:600;
  position:relative;padding-right:56px;background:transparent;transition:color var(--transition);
}
.accordion-custom .accordion-title:hover{color:var(--cyan)}
.accordion-custom .accordion-title::after{
  content:'+';position:absolute;right:24px;top:50%;transform:translateY(-50%);
  font-size:22px;color:var(--cyan);transition:transform .3s ease;font-weight:400;
}
.accordion-custom .accordion-item.is-active .accordion-title{color:var(--cyan);background:rgba(0,225,255,.05)}
.accordion-custom .accordion-item.is-active .accordion-title::after{content:'−'}
.accordion-custom .accordion-item.is-active{
  border-color:rgba(0,225,255,.4);
  box-shadow:0 0 20px rgba(0,225,255,.06);
}
.accordion-custom .accordion-content{
  padding:0 24px 24px;color:var(--text-sub);font-size:15px;line-height:1.8;
  border-top:1px solid rgba(255,255,255,.07);background:transparent;
}
.accordion-custom .accordion-content p{padding:20px 0 0}
/* CTA */
.cta-section{
  position:relative;overflow:hidden;padding:90px 0;
  background:radial-gradient(ellipse at 50% 100%,rgba(42,127,255,.22),transparent 65%);
}
.cta-section::before{
  content:'';position:absolute;top:0;right:0;left:0;bottom:0;
  background:repeating-linear-gradient(60deg,transparent 0,transparent 18px,rgba(255,255,255,.02) 18px,rgba(255,255,255,.02) 19px);
  pointer-events:none;
}
.cta-inner{position:relative;z-index:1;text-align:center;max-width:640px;margin:0 auto}
.cta-inner h2{font-size:36px;font-weight:900;margin-bottom:16px}
.cta-inner p{color:var(--text-sub);font-size:17px;margin-bottom:36px}
.cta-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
@media(max-width:640px){
  .cta-inner h2{font-size:28px}
}
/* Footer */
.site-footer{
  background:var(--bg-deep);border-top:1px solid rgba(255,255,255,.08);
  padding:70px 0 0;margin-top:0;
}
.footer-grid{
  display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:44px;padding-bottom:50px;
}
.footer-brand .footer-logo{
  font-size:22px;font-weight:900;color:var(--text-main);display:inline-block;margin-bottom:16px;
}
.footer-brand p{color:var(--text-sub);font-size:14px;line-height:1.8;max-width:320px}
.footer-col h4{font-size:16px;font-weight:700;color:var(--text-main);margin-bottom:18px;position:relative;padding-bottom:10px}
.footer-col h4::after{
  content:'';position:absolute;left:0;bottom:0;width:24px;height:2px;
  background:linear-gradient(90deg,var(--cyan),transparent);border-radius:2px;
}
.footer-col a{
  display:block;color:var(--text-sub);font-size:14px;padding:5px 0;transition:all var(--transition);
}
.footer-col a:hover{color:var(--cyan);padding-left:6px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.06);padding:22px 0;
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--text-sub);
}
@media(max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media(max-width:640px){
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;text-align:center}
}
/* Utility */
.text-gradient{
  background:linear-gradient(90deg,var(--green),var(--cyan));-webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
}
.mt-20{margin-top:20px}

/* roulang page: article */
/* ===== 设计变量 ===== */
:root {
  --bg-primary: #0B1026;
  --bg-secondary: #101B3C;
  --bg-footer: #080D1E;
  --bg-card: rgba(255, 255, 255, 0.06);
  --border-glass: rgba(255, 255, 255, 0.12);
  --accent-blue: #2A7FFF;
  --accent-cyan: #00E1FF;
  --accent-green: #C8FF2E;
  --accent-orange: #FF6A3D;
  --text-primary: #EAF0FF;
  --text-secondary: #93A0C4;
  --radius-lg: 16px;
  --radius-sm: 12px;
  --radius-pill: 999px;
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
  --transition: all 0.25s ease;
  --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

/* ===== Reset / Base ===== */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
body {
  font-family: var(--font-main);
  background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 55%, var(--bg-primary) 100%);
  background-attachment: fixed;
  color: var(--text-primary);
  font-size: 16px;
  line-height: 1.7;
  min-height: 100vh;
  position: relative;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    -45deg,
    transparent 0 12px,
    rgba(255, 255, 255, 0.015) 12px 24px
  );
  pointer-events: none;
  z-index: 0;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
}
button {
  font-family: inherit;
  border: none;
  cursor: pointer;
  background: none;
}
input,
textarea {
  font-family: inherit;
}
a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--accent-cyan);
  outline-offset: 2px;
}

/* ===== 布局容器 ===== */
.article-main {
  position: relative;
  z-index: 1;
  padding: 48px 0 80px;
}
.article-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 16, 38, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 24px;
}
.header-row1 {
  display: flex;
  align-items: center;
  gap: 20px;
}
.site-logo {
  font-size: 22px;
  font-weight: 900;
  color: var(--text-primary);
  white-space: nowrap;
  display: inline-flex;
  align-items: baseline;
  letter-spacing: 0.5px;
}
.logo-dot {
  color: var(--accent-cyan);
}
.search-wrap {
  flex: 1;
  position: relative;
  max-width: 480px;
}
.search-icon {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-secondary);
  font-size: 14px;
  pointer-events: none;
}
.search-wrap input[type="search"] {
  width: 100%;
  height: 48px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.10);
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 0 48px;
  color: var(--text-primary);
  font-size: 14px;
  transition: var(--transition);
  -webkit-appearance: none;
}
.search-wrap input[type="search"]::placeholder {
  color: rgba(147, 160, 196, 0.8);
}
.search-wrap input[type="search"]:focus {
  outline: none;
  border-color: var(--accent-cyan);
  background: rgba(255, 255, 255, 0.16);
  box-shadow: 0 0 16px rgba(42, 127, 255, 0.45);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
}
.nav-toggle {
  display: none;
  color: var(--text-primary);
  font-size: 22px;
  line-height: 1;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.nav-toggle:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--accent-cyan);
}
.site-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  flex-wrap: wrap;
}
.nav-link {
  color: var(--text-secondary);
  font-size: 15px;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
  padding: 4px 0;
}
.nav-link:hover,
.nav-link.active {
  color: var(--accent-cyan);
}
.nav-link.active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-blue), var(--accent-cyan));
  border-radius: 2px;
}
.nav-divider {
  width: 1px;
  height: 16px;
  background: rgba(255, 255, 255, 0.15);
  flex-shrink: 0;
}
.nav-tag {
  color: var(--text-secondary);
  font-size: 13px;
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255, 255, 255, 0.10);
  transition: var(--transition);
}
.nav-tag:hover {
  border-color: rgba(0, 225, 255, 0.5);
  color: var(--accent-cyan);
  background: rgba(0, 225, 255, 0.04);
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 28px;
  border-radius: var(--radius-pill);
  font-size: 15px;
  font-weight: 600;
  white-space: nowrap;
  transition: var(--transition);
  cursor: pointer;
}
.btn-primary {
  background: linear-gradient(135deg, #3A8BFF 0%, var(--accent-blue) 50%, #0061E0 100%);
  color: #fff;
  box-shadow: 0 6px 20px rgba(42, 127, 255, 0.35);
}
.btn-primary:hover {
  box-shadow: 0 8px 28px rgba(42, 127, 255, 0.55);
  transform: translateY(-2px);
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 4px 14px rgba(42, 127, 255, 0.4);
}
.btn-outline {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.30);
  color: var(--text-primary);
}
.btn-outline:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  background: rgba(0, 225, 255, 0.06);
  transform: translateY(-2px);
}
.btn-outline:active {
  transform: translateY(0);
}
.btn-sm {
  height: 40px;
  padding: 0 20px;
  font-size: 14px;
}
.btn-lg {
  height: 52px;
  padding: 0 36px;
  font-size: 16px;
}

/* ===== 面包屑 ===== */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 20px;
}
.breadcrumb a {
  color: var(--text-secondary);
  transition: var(--transition);
}
.breadcrumb a:hover {
  color: var(--accent-cyan);
}
.breadcrumb i {
  font-size: 10px;
  color: rgba(147, 160, 196, 0.6);
}
.breadcrumb .current {
  color: var(--text-primary);
  max-width: 320px;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

/* ===== 文章主体 ===== */
.article-wrap {
  max-width: 920px;
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-glass);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(8px);
}
.article-hero {
  position: relative;
  padding: 44px 48px 36px;
  background-image: linear-gradient(
    rgba(11, 16, 38, 0.88) 0%,
    rgba(16, 27, 60, 0.94) 100%
  ), url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  overflow: hidden;
}
.article-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    -45deg,
    transparent 0 10px,
    rgba(255, 255, 255, 0.015) 10px 20px
  );
  pointer-events: none;
}
.article-hero > * {
  position: relative;
  z-index: 1;
}
.article-title {
  font-size: 40px;
  font-weight: 900;
  line-height: 1.3;
  color: var(--text-primary);
  margin-bottom: 18px;
  letter-spacing: 0.5px;
}
.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 13px;
  color: var(--text-secondary);
}
.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.meta-item i {
  color: var(--accent-cyan);
}

/* ===== 正文排版 ===== */
.article-content {
  padding: 40px 48px 48px;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(234, 240, 255, 0.92);
  min-width: 0;
  overflow-wrap: break-word;
}
.article-content p {
  margin-bottom: 20px;
}
.article-content h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 44px 0 18px;
  padding-left: 16px;
  position: relative;
  line-height: 1.4;
}
.article-content h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 4px;
  background: linear-gradient(180deg, var(--accent-blue), var(--accent-cyan));
  border-radius: 4px;
}
.article-content h3 {
  font-size: 21px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 32px 0 14px;
}
.article-content h4 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 24px 0 12px;
}
.article-content ul,
.article-content ol {
  margin: 16px 0 24px;
  padding-left: 24px;
}
.article-content li {
  margin-bottom: 8px;
}
.article-content blockquote {
  border-left: 4px solid var(--accent-cyan);
  background: rgba(0, 225, 255, 0.06);
  padding: 18px 24px;
  margin: 28px 0;
  border-radius: 0 12px 12px 0;
  color: rgba(234, 240, 255, 0.85);
}
.article-content blockquote p {
  margin: 0;
}
.article-content a {
  color: var(--accent-cyan);
  text-decoration: underline;
  text-underline-offset: 4px;
  transition: var(--transition);
}
.article-content a:hover {
  color: var(--accent-green);
}
.article-content img {
  max-width: 100%;
  border-radius: 12px;
  margin: 28px auto;
  border: 1px solid rgba(255, 255, 255, 0.08);
}
.article-content figcaption {
  font-size: 13px;
  color: var(--text-secondary);
  text-align: center;
  margin-top: -20px;
  margin-bottom: 20px;
}
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 28px 0;
  font-size: 14px;
}
.article-content th,
.article-content td {
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 12px 16px;
  text-align: left;
}
.article-content th {
  background: rgba(42, 127, 255, 0.12);
  color: var(--text-primary);
  font-weight: 600;
}
.article-content tr:nth-child(even) {
  background: rgba(255, 255, 255, 0.03);
}
.article-content code {
  background: rgba(255, 255, 255, 0.08);
  padding: 2px 7px;
  border-radius: 4px;
  font-size: 14px;
  color: var(--accent-cyan);
}
.article-content pre {
  background: rgba(8, 13, 30, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: 12px;
  padding: 20px;
  overflow-x: auto;
  margin: 24px 0;
}
.article-content pre code {
  background: none;
  padding: 0;
  color: var(--text-primary);
}

/* ===== 空状态 ===== */
.article-empty {
  max-width: 920px;
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.04);
  border: 1px dashed rgba(255, 255, 255, 0.16);
  border-radius: 20px;
  padding: 72px 48px;
  text-align: center;
  box-shadow: var(--shadow-card);
}
.empty-icon {
  font-size: 52px;
  color: var(--text-secondary);
  margin-bottom: 18px;
}
.empty-title {
  font-size: 28px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 12px;
}
.article-empty p {
  color: var(--text-secondary);
  margin-bottom: 28px;
}

/* ===== 相关推荐 ===== */
.related-section {
  max-width: 920px;
  margin: 56px auto 0;
}
.section-title {
  font-size: 28px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 28px;
  padding-left: 16px;
  position: relative;
}
.section-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 4px;
  background: linear-gradient(180deg, var(--accent-blue), var(--accent-green));
  border-radius: 4px;
}
.related-grid {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -12px;
}
.related-col {
  width: 33.333%;
  padding: 0 12px;
  margin-bottom: 24px;
}
.related-card {
  display: block;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 100%;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}
.related-card:hover {
  transform: translateY(-5px);
  border-color: rgba(0, 225, 255, 0.45);
  box-shadow: 0 12px 32px rgba(42, 127, 255, 0.22);
}
.related-card:active {
  transform: translateY(-2px);
}
.related-thumb {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
}
.related-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}
.related-card:hover .related-thumb img {
  transform: scale(1.04);
}
.related-info {
  padding: 18px 20px 20px;
}
.tag-pill {
  display: inline-block;
  height: 24px;
  line-height: 24px;
  padding: 0 12px;
  border-radius: var(--radius-pill);
  background: rgba(200, 255, 46, 0.10);
  color: var(--accent-green);
  font-size: 12px;
  font-weight: 500;
}
.related-info h3 {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--text-primary);
  margin: 12px 0 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 51px;
}
.related-date {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-secondary);
}

/* ===== 文章操作 ===== */
.article-actions {
  max-width: 920px;
  margin: 36px auto 0;
  display: flex;
  justify-content: center;
}

/* ===== CTA ===== */
.article-cta {
  max-width: 920px;
  margin: 64px auto 0;
  background: radial-gradient(circle at 20% 30%, rgba(42, 127, 255, 0.22), transparent 60%);
  border: 1px solid var(--border-glass);
  border-radius: 20px;
  padding: 58px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.article-cta::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 40%;
  background: repeating-linear-gradient(
    -45deg,
    transparent 0 8px,
    rgba(255, 255, 255, 0.02) 8px 16px
  );
  pointer-events: none;
}
.cta-diamond {
  display: inline-block;
  width: 48px;
  height: 48px;
  border: 2px solid rgba(0, 225, 255, 0.35);
  border-radius: 10px;
  transform: rotate(45deg);
  margin-bottom: 32px;
  position: relative;
}
.cta-diamond::after {
  content: "";
  position: absolute;
  inset: 9px;
  border: 1px solid rgba(200, 255, 46, 0.45);
  border-radius: 5px;
}
.article-cta h2 {
  font-size: 32px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 12px;
}
.article-cta p {
  color: var(--text-secondary);
  font-size: 16px;
  margin-bottom: 30px;
}

/* ===== Footer ===== */
.site-footer {
  position: relative;
  z-index: 1;
  background: var(--bg-footer);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 64px 0 24px;
  font-family: var(--font-main);
}
.site-footer .grid-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.footer-brand .footer-logo {
  font-size: 22px;
  font-weight: 900;
  color: var(--text-primary);
  letter-spacing: 0.5px;
}
.footer-brand p {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.7;
  margin-top: 14px;
  max-width: 300px;
}
.footer-col h4 {
  color: var(--text-primary);
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
}
.footer-col a {
  display: block;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 2.3;
  transition: var(--transition);
}
.footer-col a:hover {
  color: var(--accent-cyan);
  transform: translateX(4px);
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  font-size: 13px;
  color: rgba(147, 160, 196, 0.7);
  flex-wrap: wrap;
  gap: 8px;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .related-col {
    width: 50%;
  }
  .article-title {
    font-size: 34px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
}
@media (max-width: 768px) {
  .header-row1 {
    flex-wrap: wrap;
    gap: 14px;
  }
  .search-wrap {
    order: 3;
    flex-basis: 100%;
    max-width: 100%;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .site-nav {
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
    padding-top: 16px;
  }
  .site-nav.nav-open {
    display: flex;
  }
  .nav-divider {
    display: none;
  }
  .article-hero {
    padding: 32px 24px 28px;
  }
  .article-content {
    padding: 28px 24px 36px;
  }
  .article-wrap {
    border-radius: 16px;
  }
  .article-cta {
    padding: 40px 24px;
  }
  .article-cta h2 {
    font-size: 26px;
  }
  .section-title {
    font-size: 24px;
  }
}
@media (max-width: 640px) {
  .article-main {
    padding: 32px 0 56px;
  }
  .article-container {
    padding: 0 16px;
  }
  .header-inner {
    padding: 14px 16px;
  }
  .site-logo {
    font-size: 19px;
  }
  .related-col {
    width: 100%;
    padding: 0 0;
    margin-bottom: 16px;
  }
  .related-grid {
    margin: 0;
    display: block;
  }
  .article-title {
    font-size: 26px;
  }
  .article-meta {
    gap: 12px;
    flex-direction: column;
    align-items: flex-start;
  }
  .article-content {
    padding: 24px 20px 32px;
    font-size: 15px;
    overflow-x: auto;
  }
  .article-content h2 {
    font-size: 21px;
  }
  .article-content h3 {
    font-size: 18px;
  }
  .article-cta {
    padding: 36px 20px;
  }
  .article-cta h2 {
    font-size: 22px;
  }
  .article-cta p {
    font-size: 14px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  .btn-lg {
    width: 100%;
    padding: 0 20px;
  }
  .article-actions .btn {
    width: 100%;
  }
  .breadcrumb .current {
    max-width: 200px;
  }
}