/* roulang page: index */
:root {
  --bg-primary: #0A0F1E;
  --bg-secondary: #0F1628;
  --bg-footer: #070B14;
  --accent-cyan: #00E5FF;
  --accent-orange: #FF6B35;
  --success: #34D399;
  --warning: #FBBF24;
  --error: #F87171;
  --text-white: #FFFFFF;
  --text-primary: #E5EAF3;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  --border-glass: rgba(255,255,255,0.10);
  --card-glass: rgba(255,255,255,0.045);
  --radius-card: 16px;
  --radius-btn: 10px;
  --radius-pill: 999px;
  --shadow-card: 0 8px 24px rgba(0,0,0,0.28);
  --shadow-glow: 0 0 16px rgba(0,229,255,0.35);
  --font-main: "PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --nav-height: 68px;
  --container-width: 1240px;
  --section-pad: clamp(64px, 8vw, 120px);
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-main);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
  transition: color .18s ease;
}
ul {
  list-style: none;
}
button, input, select {
  font-family: inherit;
  font-size: inherit;
}
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}
.section-head {
  text-align: center;
  margin-bottom: clamp(36px, 5vw, 56px);
}
.section-head h2 {
  font-size: clamp(26px, 3.5vw, 40px);
  font-weight: 700;
  color: var(--text-white);
  letter-spacing: 0.01em;
  margin-bottom: 12px;
  line-height: 1.3;
}
.section-head p {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: none;
  border-radius: var(--radius-btn);
  font-size: 16px;
  font-weight: 600;
  padding: 14px 32px;
  cursor: pointer;
  transition: all .2s ease;
  text-align: center;
  line-height: 1.4;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent-cyan) 0%, #009BB0 100%);
  color: #fff;
  box-shadow: 0 0 16px rgba(0,229,255,0.35), 0 4px 12px rgba(0,0,0,0.3);
}
.btn-primary:hover {
  box-shadow: 0 0 24px rgba(0,229,255,0.55), 0 6px 16px rgba(0,0,0,0.35);
  transform: translateY(-1px);
}
.btn-primary:active {
  transform: translateY(1px);
  box-shadow: 0 0 8px rgba(0,229,255,0.25), 0 2px 6px rgba(0,0,0,0.3);
}
.btn-ghost {
  background: transparent;
  color: var(--accent-cyan);
  border: 1px solid rgba(0,229,255,0.5);
  box-shadow: none;
}
.btn-ghost:hover {
  background: rgba(0,229,255,0.08);
  border-color: var(--accent-cyan);
  transform: translateY(-1px);
}
.btn-ghost:active {
  transform: translateY(1px);
}
.btn-sm {
  padding: 10px 22px;
  font-size: 14px;
}
.btn-lg {
  padding: 16px 40px;
  font-size: 17px;
}
.btn:focus-visible,
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 2px solid var(--accent-cyan);
  outline-offset: 2px;
}
.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 500;
  background: rgba(0,229,255,0.12);
  color: var(--accent-cyan);
  border: 1px solid rgba(0,229,255,0.25);
  white-space: nowrap;
}
.badge-orange {
  background: rgba(255,107,53,0.12);
  color: var(--accent-orange);
  border-color: rgba(255,107,53,0.25);
}
.glass-card {
  background: var(--card-glass);
  border: 1px solid var(--border-glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  transition: border-color .18s ease, background .18s ease, transform .18s ease, box-shadow .18s ease;
}
.glass-card:hover {
  border-color: rgba(0,229,255,0.45);
  background: rgba(255,255,255,0.08);
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.36), 0 0 12px rgba(0,229,255,0.08);
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  z-index: 1000;
  background: rgba(10,15,30,0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  transition: box-shadow .3s ease;
}
.site-header::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0,229,255,0.7), transparent);
  opacity: 0;
  transition: opacity .3s ease;
}
.site-header.scrolled {
  box-shadow: 0 4px 24px rgba(0,0,0,0.35);
}
.site-header.scrolled::after {
  opacity: 1;
}
.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-icon {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(0,229,255,0.25), rgba(255,107,53,0.15));
  border: 1px solid rgba(0,229,255,0.4);
  color: var(--accent-cyan);
  font-size: 18px;
}
.brand-text {
  font-size: 20px;
  font-weight: 800;
  color: var(--text-white);
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.brand-text span {
  color: var(--accent-cyan);
}
.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
  flex: 1;
  justify-content: flex-end;
}
.nav-list {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 8px 18px;
  font-size: 15px;
  color: rgba(255,255,255,0.75);
  border-radius: 8px;
  position: relative;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: color .18s ease, background .18s ease;
}
.nav-link:hover {
  color: var(--accent-cyan);
  background: rgba(0,229,255,0.06);
}
.nav-link.active {
  color: var(--text-white);
  font-weight: 600;
}
.nav-link.active::after {
  content: "";
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 2px;
  height: 2px;
  border-radius: 2px;
  background: var(--accent-cyan);
  box-shadow: 0 0 8px rgba(0,229,255,0.7);
}
.nav-cta {
  margin-left: 8px;
  flex-shrink: 0;
}
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 8px;
  cursor: pointer;
  padding: 0;
}
.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-white);
  border-radius: 2px;
  transition: transform .25s ease, opacity .25s ease;
}
.nav-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--nav-height) + 40px) 0 80px;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  z-index: -2;
}
.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(7,11,20,0.6);
}
.hero-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,229,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,229,255,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  z-index: 1;
}
.hero-container {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 64px;
  align-items: center;
  position: relative;
  z-index: 2;
  width: 100%;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0,229,255,0.1);
  border: 1px solid rgba(0,229,255,0.3);
  color: var(--accent-cyan);
  padding: 6px 18px;
  border-radius: var(--radius-pill);
  font-size: 13px;
  margin-bottom: 24px;
  backdrop-filter: blur(6px);
}
.hero h1 {
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 800;
  line-height: 1.2;
  color: var(--text-white);
  margin-bottom: 20px;
  letter-spacing: -0.01em;
}
.hero-sub {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 520px;
  margin-bottom: 36px;
  line-height: 1.7;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}
.hero-panel {
  position: relative;
}
.hero-stats-card {
  padding: 28px;
  position: relative;
}
.hero-panel-head {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 8px rgba(52,211,153,0.7);
  animation: pulse 1.6s ease infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.85); }
}
.hero-mini-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}
.hero-mini-stat {
  text-align: center;
  padding: 16px 8px;
  background: rgba(0,0,0,0.2);
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.06);
}
.hero-mini-value {
  display: block;
  font-size: 28px;
  font-weight: 700;
  color: var(--accent-cyan);
  line-height: 1.2;
}
.hero-mini-label {
  display: block;
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 6px;
}
.hero-panel-footer {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.hero-panel-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
}
.hero-panel-row i {
  color: var(--success);
  font-size: 14px;
}
.hero-scroll {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  opacity: 0.7;
}
.scroll-line {
  width: 2px;
  height: 36px;
  background: linear-gradient(180deg, var(--accent-cyan), transparent);
  border-radius: 2px;
  animation: scrollHint 2s ease infinite;
}
@keyframes scrollHint {
  0% { transform: scaleY(1); transform-origin: top; }
  50% { transform: scaleY(0.4); transform-origin: top; }
  100% { transform: scaleY(1); transform-origin: top; }
}

/* Stat Bar */
.stat-bar {
  background: var(--bg-secondary);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  padding: 32px 0;
}
.stat-bar-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px 32px;
}
.stat-item {
  flex: 1;
  text-align: center;
  min-width: 120px;
}
.stat-value {
  display: block;
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  color: var(--text-white);
  line-height: 1.2;
  font-family: var(--font-main);
}
.stat-label {
  display: block;
  font-size: 14px;
  color: var(--text-secondary);
  margin-top: 4px;
}
.stat-divider {
  width: 1px;
  height: 44px;
  background: rgba(255,255,255,0.14);
  flex-shrink: 0;
}

/* Steps */
.steps-section {
  padding: var(--section-pad) 0;
  background: var(--bg-primary);
  position: relative;
}
.steps-track {
  display: flex;
  align-items: stretch;
  justify-content: center;
  gap: 24px;
  position: relative;
}
.step-item {
  flex: 1;
  max-width: 300px;
  text-align: center;
  padding: 36px 28px;
  position: relative;
}
.step-num {
  position: absolute;
  top: 12px;
  left: 20px;
  font-size: 48px;
  font-weight: 800;
  color: rgba(255,107,53,0.18);
  line-height: 1;
  z-index: 0;
}
.step-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(0,229,255,0.15), rgba(255,107,53,0.1));
  border: 1px solid rgba(0,229,255,0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: var(--accent-cyan);
  margin: 0 auto 20px;
  position: relative;
  z-index: 1;
}
.step-item h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 8px;
}
.step-item p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}
.step-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
  font-size: 18px;
  opacity: 0.6;
  flex-shrink: 0;
  align-self: center;
}

/* Cases */
.cases-section {
  padding: var(--section-pad) 0;
  background: var(--bg-secondary);
}
.cases-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 24px;
  align-items: stretch;
}
.case-card {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.case-card:hover {
  border-color: rgba(0,229,255,0.4);
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.3);
}
.case-cover {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/9;
}
.case-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.case-card:hover .case-cover img {
  transform: scale(1.03);
}
.case-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(7,11,20,0.75);
  backdrop-filter: blur(6px);
  color: var(--accent-cyan);
  border: 1px solid rgba(0,229,255,0.3);
  font-size: 12px;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  z-index: 2;
}
.case-body {
  padding: 24px;
}
.case-body h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 10px;
  line-height: 1.4;
}
.case-body p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}
.case-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent-cyan);
  transition: gap .18s ease;
}
.case-link:hover {
  gap: 10px;
  color: var(--text-white);
}
.case-col {
  display: grid;
  grid-template-rows: 1fr 1fr;
  gap: 24px;
}
.case-side {
  display: flex;
  align-items: stretch;
  height: 100%;
}
.case-mini-cover {
  width: 38%;
  min-height: 180px;
  overflow: hidden;
  border-radius: var(--radius-card) 0 0 var(--radius-card);
}
.case-mini-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.case-mini-body {
  flex: 1;
  padding: 20px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.case-mini-body .case-tag {
  position: static;
  display: inline-flex;
  align-self: flex-start;
  margin-bottom: 10px;
  background: rgba(255,107,53,0.1);
  color: var(--accent-orange);
  border-color: rgba(255,107,53,0.25);
}
.case-mini-body h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-white);
  line-height: 1.4;
  margin-bottom: 12px;
}
.case-mini-body .case-link {
  font-size: 13px;
}

/* News / CMS */
.news-section {
  padding: var(--section-pad) 0;
  background: var(--bg-primary);
}
.cms-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.cms-card {
  display: flex;
  gap: 20px;
  padding: 20px;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-card);
  transition: border-color .18s ease, background .18s ease, transform .18s ease, box-shadow .18s ease;
}
.cms-card:hover {
  border-color: rgba(0,229,255,0.4);
  background: rgba(255,255,255,0.05);
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(0,0,0,0.28);
}
.cms-card-cover {
  width: 180px;
  height: 130px;
  border-radius: 12px;
  overflow: hidden;
  flex-shrink: 0;
}
.cms-card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .3s ease;
}
.cms-card:hover .cms-card-cover img {
  transform: scale(1.05);
}
.cms-card-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-width: 0;
}
.cms-card-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}
.cms-card-time {
  font-size: 12px;
  color: var(--text-muted);
}
.cms-card-body h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-white);
  line-height: 1.4;
  margin-bottom: 6px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.cms-card-body p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.cms-card-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent-cyan);
  transition: gap .18s ease;
}
.cms-card:hover .cms-card-link {
  gap: 8px;
}
.cms-empty {
  grid-column: 1 / -1;
  border: 2px dashed rgba(255,255,255,0.18);
  border-radius: var(--radius-card);
  padding: 60px 24px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  color: var(--text-secondary);
}
.cms-empty-icon {
  font-size: 40px;
  opacity: 0.6;
}
.cms-empty p {
  font-size: 15px;
}

/* FAQ */
.faq-section {
  padding: var(--section-pad) 0;
  background: var(--bg-secondary);
}
.faq-list {
  max-width: 780px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.faq-item {
  background: rgba(255,255,255,0.035);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 14px;
  overflow: hidden;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.faq-item.active {
  border-color: rgba(0,229,255,0.3);
  box-shadow: 0 4px 20px rgba(0,0,0,0.2), 0 0 8px rgba(0,229,255,0.05);
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 22px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 500;
  color: var(--text-white);
  transition: color .18s ease;
  user-select: none;
}
.faq-item.active .faq-question {
  color: var(--accent-cyan);
}
.faq-question i {
  font-size: 14px;
  color: var(--text-muted);
  transition: transform .2s ease, color .2s ease;
  flex-shrink: 0;
}
.faq-item.active .faq-question i {
  transform: rotate(45deg);
  color: var(--accent-cyan);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .22s ease, padding .22s ease;
  padding: 0 22px;
}
.faq-item.active .faq-answer {
  max-height: 200px;
  padding: 0 22px 18px;
}
.faq-answer p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.75;
  padding-left: 1em;
  border-left: 2px solid rgba(0,229,255,0.25);
}

/* CTA */
.cta-section {
  padding: var(--section-pad) 0;
  position: relative;
  overflow: hidden;
  background: var(--bg-primary);
}
.cta-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
  opacity: 0.15;
  z-index: 0;
}
.cta-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(0,229,255,0.15), transparent 70%);
}
.cta-container {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 780px;
}
.cta-container h2 {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800;
  color: var(--text-white);
  margin-bottom: 16px;
  line-height: 1.3;
}
.cta-container > p {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 36px;
  line-height: 1.7;
}
.cta-form {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 16px;
  padding: 28px;
  text-align: left;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.cta-form input,
.cta-form select {
  width: 100%;
  background: rgba(0,0,0,0.25);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 10px;
  padding: 13px 16px;
  color: var(--text-white);
  font-size: 14px;
  transition: border-color .18s ease, box-shadow .18s ease;
  appearance: none;
  -webkit-appearance: none;
}
.cta-form select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%2394A3B8' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  cursor: pointer;
}
.cta-form select option {
  background: var(--bg-secondary);
  color: var(--text-white);
}
.cta-form input::placeholder {
  color: var(--text-muted);
}
.cta-form input:focus,
.cta-form select:focus {
  outline: none;
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px rgba(0,229,255,0.15);
}
.cta-form .btn {
  width: 100%;
  justify-content: center;
}

/* Footer */
.site-footer {
  background: var(--bg-footer);
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 64px;
}
.footer-container {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
}
.footer-brand {
  font-size: 22px;
  font-weight: 800;
  color: var(--text-white);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
}
.footer-brand i {
  color: var(--accent-cyan);
}
.footer-brand-col p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 260px;
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-white);
  margin-bottom: 18px;
  letter-spacing: 0.02em;
}
.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-col ul li {
  font-size: 14px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
}
.footer-col ul li i {
  color: var(--accent-cyan);
  width: 16px;
  font-size: 13px;
  text-align: center;
}
.footer-col ul li a {
  color: var(--text-secondary);
  transition: color .18s ease;
}
.footer-col ul li a:hover {
  color: var(--accent-cyan);
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 20px 0;
  text-align: center;
}
.footer-bottom p {
  font-size: 13px;
  color: var(--text-muted);
}
.footer-icp {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Responsive */
@media (max-width: 1199px) {
  .hero-container {
    gap: 40px;
    grid-template-columns: 1.1fr 0.9fr;
  }
  .cms-list {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 991px) {
  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-sub {
    margin-left: auto;
    margin-right: auto;
  }
  .hero-actions {
    justify-content: center;
  }
  .hero-panel {
    max-width: 560px;
    margin: 0 auto;
    width: 100%;
  }
  .cases-grid {
    grid-template-columns: 1fr;
  }
  .case-col {
    grid-template-rows: none;
    grid-template-columns: 1fr 1fr;
  }
  .footer-container {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 767px) {
  .nav-toggle {
    display: flex;
  }
  .nav-menu {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: #0A0F1E;
    flex-direction: column;
    align-items: stretch;
    padding: 16px 24px 24px;
    gap: 12px;
    transform: translateY(-10px);
    opacity: 0;
    visibility: hidden;
    transition: transform .25s ease, opacity .25s ease, visibility .25s ease;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
    max-height: calc(100vh - var(--nav-height));
    overflow-y: auto;
  }
  .nav-menu.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
  }
  .nav-link {
    padding: 14px 16px;
    border-radius: 10px;
    font-size: 16px;
    border-bottom: 1px solid rgba(255,255,255,0.04);
  }
  .nav-link.active::after {
    left: 16px;
    right: auto;
    width: 3px;
    height: auto;
    top: 10px;
    bottom: 10px;
    border-radius: 3px;
  }
  .nav-cta {
    margin-left: 0;
    margin-top: 8px;
    width: 100%;
    justify-content: center;
  }
  .stat-bar-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }
  .stat-divider {
    display: none;
  }
  .steps-track {
    flex-direction: column;
    align-items: center;
    gap: 0;
  }
  .step-item {
    max-width: 100%;
    padding: 28px 20px;
  }
  .step-arrow {
    transform: rotate(90deg);
    margin: 4px 0;
  }
  .case-col {
    grid-template-columns: 1fr;
  }
  .case-side {
    flex-direction: column;
  }
  .case-mini-cover {
    width: 100%;
    min-height: 140px;
    border-radius: var(--radius-card) var(--radius-card) 0 0;
  }
  .case-mini-cover img {
    width: 100%;
    height: 140px;
  }
  .cms-card {
    flex-direction: column;
  }
  .cms-card-cover {
    width: 100%;
    height: 160px;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .footer-container {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .hero {
    padding-top: calc(var(--nav-height) + 24px);
  }
  .hero-stats-card {
    padding: 20px;
  }
  .hero-mini-grid {
    gap: 10px;
  }
  .hero-mini-value {
    font-size: 22px;
  }
  .hero-actions .btn {
    width: 100%;
    max-width: 260px;
  }
  .hero-actions {
    flex-direction: column;
    align-items: center;
  }
  .cta-form {
    padding: 20px;
  }
}
@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }
  .brand-text {
    font-size: 18px;
  }
  .stat-bar-container {
    grid-template-columns: 1fr;
  }
  .footer-container {
    grid-template-columns: 1fr;
  }
  .cms-card-cover {
    height: 140px;
  }
}

/* roulang page: article */
:root {
            --bg-primary: #0A0F1E;
            --bg-secondary: #0F1628;
            --bg-deep: #070B14;
            --accent: #00E5FF;
            --accent-rgb: 0, 229, 255;
            --energy: #FF6B35;
            --success: #34D399;
            --warning: #FBBF24;
            --error: #F87171;
            --text-white: #FFFFFF;
            --text-main: #E5EAF3;
            --text-secondary: #94A3B8;
            --text-weak: #64748B;
            --border-glass: rgba(255, 255, 255, 0.10);
            --bg-glass: rgba(255, 255, 255, 0.045);
            --radius-card: 16px;
            --radius-btn: 10px;
            --shadow-glow: 0 0 16px rgba(0, 229, 255, 0.35);
            --spacing-section: clamp(64px, 8vw, 120px);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            --nav-height: 64px;
            --container-max: 1240px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-main);
            background: var(--bg-primary);
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        a {
            color: var(--accent);
            text-decoration: none;
            transition: color .2s ease;
        }
        a:hover {
            color: #66f0ff;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button {
            font-family: inherit;
            border: none;
            background: none;
            cursor: pointer;
        }
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: 14px;
            color: var(--text-main);
            background: rgba(0, 0, 0, 0.25);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 10px;
            padding: 12px 14px;
            width: 100%;
            transition: border-color .2s, box-shadow .2s;
        }
        input:focus,
        select:focus,
        textarea:focus {
            outline: none;
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.12);
        }
        input::placeholder {
            color: var(--text-weak);
        }
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 16px;
            font-weight: 600;
            line-height: 1;
            padding: 14px 28px;
            border-radius: var(--radius-btn);
            transition: all .2s ease;
            white-space: nowrap;
            cursor: pointer;
            border: 1px solid transparent;
        }
        .btn-primary {
            background: linear-gradient(180deg, var(--accent), #0099b8);
            color: #fff;
            box-shadow: 0 0 16px rgba(var(--accent-rgb), 0.35), 0 4px 12px rgba(0, 0, 0, 0.3);
        }
        .btn-primary:hover {
            box-shadow: 0 0 24px rgba(var(--accent-rgb), 0.55), 0 6px 18px rgba(0, 0, 0, 0.35);
            transform: translateY(-1px);
            color: #fff;
        }
        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: 0 0 8px rgba(var(--accent-rgb), 0.25);
        }
        .btn-outline {
            background: transparent;
            color: var(--accent);
            border-color: rgba(var(--accent-rgb), 0.5);
        }
        .btn-outline:hover {
            background: rgba(var(--accent-rgb), 0.08);
            color: var(--accent);
        }
        .btn-sm {
            padding: 10px 20px;
            font-size: 14px;
        }
        .btn:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }
        .badge {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.08em;
            padding: 4px 12px;
            border-radius: 999px;
            background: rgba(var(--accent-rgb), 0.12);
            color: var(--accent);
            border: 1px solid rgba(var(--accent-rgb), 0.25);
        }
        .glass-card {
            background: rgba(15, 22, 40, 0.92);
            background: var(--bg-glass);
            -webkit-backdrop-filter: blur(10px);
            backdrop-filter: blur(10px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-card);
            transition: border-color .18s ease, transform .18s ease, box-shadow .18s ease, background .18s ease;
        }
        .glass-card:hover {
            border-color: rgba(var(--accent-rgb), 0.45);
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.3);
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(10, 15, 30, 0.85);
            -webkit-backdrop-filter: blur(14px);
            backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .site-header::after {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            bottom: -1px;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(var(--accent-rgb), 0.6), transparent);
            opacity: 0;
            transition: opacity .3s;
        }
        .site-header.scrolled::after {
            opacity: 1;
        }
        .header-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 16px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .brand-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, rgba(var(--accent-rgb), 0.2), rgba(var(--accent-rgb), 0.05));
            border: 1px solid rgba(var(--accent-rgb), 0.3);
            color: var(--accent);
            font-size: 17px;
        }
        .brand-text {
            font-size: 22px;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: 0.02em;
            line-height: 1;
        }
        .brand-text span {
            color: var(--accent);
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 6px;
            list-style: none;
        }
        .nav-link {
            font-size: 16px;
            font-weight: 500;
            letter-spacing: 0.02em;
            color: rgba(255, 255, 255, 0.75);
            padding: 8px 12px;
            border-radius: 8px;
            position: relative;
            transition: color .2s;
        }
        .nav-link:hover {
            color: var(--accent);
        }
        .nav-link.active {
            color: var(--text-white);
            font-weight: 600;
        }
        .nav-link.active::after {
            content: "";
            position: absolute;
            left: 12px;
            right: 12px;
            bottom: -3px;
            height: 2px;
            border-radius: 2px;
            background: var(--accent);
            box-shadow: 0 0 8px rgba(var(--accent-rgb), 0.7);
        }
        .nav-cta {
            flex-shrink: 0;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 8px;
        }
        .nav-toggle span {
            width: 22px;
            height: 2px;
            background: var(--text-white);
            border-radius: 2px;
            transition: all .25s;
        }
        .nav-toggle[aria-expanded="true"] span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .nav-toggle[aria-expanded="true"] span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle[aria-expanded="true"] span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ===== Main ===== */
        main {
            min-height: 80vh;
        }

        /* Breadcrumb */
        .breadcrumb-wrap {
            padding: calc(var(--nav-height) + 36px) 0 0;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 14px;
            color: var(--text-weak);
            margin-bottom: 24px;
        }
        .breadcrumb a {
            color: var(--text-secondary);
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .crumb-sep {
            color: var(--text-weak);
            opacity: .6;
        }
        .crumb-current {
            color: var(--accent);
            font-weight: 500;
            max-width: 240px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        /* ===== CMS TDK ===== */
        .cms-tdk {
            padding: clamp(28px, 4vw, 44px);
            margin-bottom: 32px;
            border-left: 3px solid var(--accent);
        }
        .cms-tdk .post-category-badge {
            margin-bottom: 16px;
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            align-items: center;
        }
        .cms-tdk h1 {
            font-size: clamp(28px, 4vw, 38px);
            font-weight: 800;
            line-height: 1.25;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }
        .cms-tdk .post-summary {
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-secondary);
            max-width: 75ch;
            margin-bottom: 20px;
        }
        .cms-tdk .post-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px 28px;
            font-size: 13px;
            color: var(--text-weak);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 16px;
        }
        .cms-tdk .post-meta i {
            margin-right: 6px;
            color: rgba(var(--accent-rgb), 0.7);
        }

        /* ===== Article Body ===== */
        .article-wrapper {
            max-width: 860px;
            margin: 0 auto;
        }
        .cms-body {
            padding: clamp(24px, 4vw, 48px);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-main);
            background: rgba(15, 22, 40, 0.92);
            background: var(--bg-glass);
            -webkit-backdrop-filter: blur(8px);
            backdrop-filter: blur(8px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-card);
        }
        .cms-body p {
            margin-bottom: 1.2em;
            max-width: 75ch;
        }
        .cms-body p:first-child::first-letter {
            font-size: 1.4em;
            font-weight: 700;
            color: var(--text-white);
        }
        .cms-body h2 {
            font-size: 26px;
            font-weight: 800;
            color: var(--text-white);
            margin: 1.8em 0 0.7em;
            line-height: 1.3;
            padding-bottom: 8px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .cms-body h3 {
            font-size: 21px;
            font-weight: 700;
            color: var(--text-white);
            margin: 1.6em 0 0.6em;
            line-height: 1.35;
        }
        .cms-body h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            margin: 1.4em 0 0.5em;
        }
        .cms-body ul,
        .cms-body ol {
            margin: 0 0 1.2em 1.4em;
            padding: 0;
        }
        .cms-body li {
            margin-bottom: 0.5em;
            line-height: 1.6;
        }
        .cms-body blockquote {
            border-left: 3px solid var(--accent);
            background: rgba(var(--accent-rgb), 0.05);
            padding: 12px 20px;
            margin: 0 0 1.2em 0;
            color: var(--text-secondary);
            font-style: italic;
            border-radius: 0 10px 10px 0;
        }
        .cms-body blockquote p {
            margin-bottom: 0;
        }
        .cms-body strong {
            color: var(--text-white);
            font-weight: 700;
        }
        .cms-body a {
            color: var(--accent);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .cms-body a:hover {
            color: #66f0ff;
        }
        .cms-body hr {
            border: none;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin: 2em 0;
        }
        .cms-body figure {
            margin: 2em 0;
        }
        .cms-body figure img {
            border-radius: 12px;
            width: 100%;
            object-fit: cover;
        }
        .cms-body figcaption {
            font-size: 13px;
            color: var(--text-weak);
            text-align: center;
            margin-top: 10px;
        }
        .cms-body img {
            border-radius: 12px;
            margin: 0 auto;
        }

        /* ===== CMS Empty ===== */
        .cms-empty {
            text-align: center;
            padding: 60px 24px;
        }
        .cms-empty-icon {
            font-size: 48px;
            color: var(--text-weak);
            margin-bottom: 20px;
            opacity: .5;
        }
        .cms-empty h2 {
            font-size: 24px;
            color: var(--text-white);
            margin-bottom: 12px;
        }
        .cms-empty p {
            color: var(--text-secondary);
            margin-bottom: 28px;
            max-width: 420px;
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== Post Tags ===== */
        .post-tags-wrap {
            margin-top: 32px;
        }
        .post-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            align-items: center;
        }
        .post-tags-label {
            font-size: 14px;
            color: var(--text-weak);
            font-weight: 500;
            margin-right: 4px;
        }
        .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 999px;
            padding: 6px 14px;
            transition: all .2s;
        }
        .tag:hover {
            color: var(--accent);
            border-color: rgba(var(--accent-rgb), 0.4);
        }
        .tag i {
            font-size: 11px;
            color: var(--accent);
        }

        /* ===== Related Section ===== */
        .related-section {
            padding: clamp(50px, 6vw, 90px) 0 0;
        }
        .related-section .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 32px;
        }
        .related-section .section-head h2 {
            font-size: clamp(26px, 3vw, 34px);
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.2;
        }
        .related-section .section-head p {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 360px;
            text-align: right;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            display: flex;
            flex-direction: column;
            background: rgba(15, 22, 40, 0.92);
            background: var(--bg-glass);
            -webkit-backdrop-filter: blur(8px);
            backdrop-filter: blur(8px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all .2s ease;
        }
        .related-card:hover {
            transform: translateY(-4px);
            border-color: rgba(var(--accent-rgb), 0.45);
            box-shadow: 0 16px 32px rgba(0, 0, 0, 0.3);
        }
        .related-cover {
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: var(--bg-secondary);
        }
        .related-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .3s;
        }
        .related-card:hover .related-cover img {
            transform: scale(1.04);
        }
        .related-body {
            padding: 20px 20px 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
            gap: 8px;
        }
        .related-body .badge {
            align-self: flex-start;
        }
        .related-body h3 {
            font-size: 17px;
            font-weight: 700;
            line-height: 1.4;
            color: var(--text-white);
            margin: 4px 0 0;
        }
        .related-body h3 a {
            color: inherit;
        }
        .related-body h3 a:hover {
            color: var(--accent);
        }
        .related-body p {
            font-size: 14px;
            line-height: 1.6;
            color: var(--text-secondary);
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-body .related-meta {
            margin-top: auto;
            padding-top: 10px;
            font-size: 13px;
            color: var(--text-weak);
        }

        /* ===== CTA Section ===== */
        .cta-section {
            position: relative;
            padding: clamp(70px, 8vw, 110px) 0;
            margin-top: clamp(50px, 7vw, 90px);
            background:
                radial-gradient(ellipse at 50% 20%, rgba(var(--accent-rgb), 0.10), transparent 60%),
                linear-gradient(180deg, rgba(7, 11, 20, 0.9), var(--bg-deep));
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }
        .cta-inner {
            text-align: center;
            max-width: 760px;
            margin: 0 auto;
        }
        .cta-inner .badge {
            margin-bottom: 18px;
        }
        .cta-inner h2 {
            font-size: clamp(30px, 4vw, 42px);
            font-weight: 800;
            color: var(--text-white);
            line-height: 1.25;
            margin-bottom: 16px;
        }
        .cta-inner h2 span {
            color: var(--accent);
        }
        .cta-inner p {
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-secondary);
            margin-bottom: 28px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .cta-form {
            margin-top: 36px;
            text-align: left;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 16px;
            padding: 28px;
            display: grid;
            grid-template-columns: 1fr 1fr 1fr auto;
            gap: 14px;
            align-items: end;
        }
        .cta-form .form-field label {
            display: block;
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 6px;
            font-weight: 500;
        }
        .cta-form .btn {
            height: 44px;
            padding: 0 22px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 56px 0 0;
        }
        .footer-container {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 14px;
        }
        .footer-brand i {
            color: var(--accent);
            font-size: 20px;
        }
        .footer-brand-col p {
            font-size: 14px;
            line-height: 1.6;
            color: var(--text-secondary);
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: 0.04em;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul a {
            font-size: 14px;
            color: var(--text-secondary);
            transition: color .2s;
        }
        .footer-col ul a:hover {
            color: var(--accent);
        }
        .footer-col ul li i {
            color: var(--text-weak);
            margin-right: 8px;
            width: 16px;
            text-align: center;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 18px 0;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: var(--text-weak);
        }
        .footer-bottom .container {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 4px 24px;
        }
        .footer-bottom p {
            margin: 0;
        }
        .footer-icp {
            color: var(--text-weak);
            opacity: .8;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1199px) {
            .footer-container {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 991px) {
            .related-grid {
                grid-template-columns: 1fr 1fr;
            }
            .cta-form {
                grid-template-columns: 1fr 1fr;
            }
            .cta-form .btn {
                grid-column: 1 / -1;
                height: 46px;
            }
        }
        @media (max-width: 767px) {
            .nav-menu {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: #0A0F1E;
                flex-direction: column;
                align-items: stretch;
                padding: 20px 24px 30px;
                gap: 20px;
                transform: translateY(-120%);
                transition: transform .28s ease;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
            }
            .nav-menu.open {
                transform: translateY(0);
            }
            .nav-list {
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
            }
            .nav-link {
                display: block;
                padding: 12px 0;
                font-size: 16px;
            }
            .nav-link.active::after {
                left: 0;
                right: auto;
                width: 28px;
                bottom: 4px;
            }
            .nav-cta {
                width: 100%;
                justify-content: center;
                height: 48px;
            }
            .nav-toggle {
                display: flex;
            }
            .breadcrumb-wrap {
                padding-top: calc(var(--nav-height) + 24px);
            }
            .cms-tdk h1 {
                font-size: 26px;
            }
            .cms-body {
                padding: 20px 18px;
                font-size: 15px;
            }
            .cms-body h2 {
                font-size: 22px;
            }
            .cms-body h3 {
                font-size: 18px;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .related-section .section-head {
                flex-direction: column;
                gap: 10px;
                align-items: flex-start;
            }
            .related-section .section-head p {
                text-align: left;
            }
            .cta-form {
                grid-template-columns: 1fr;
                padding: 20px;
            }
            .cta-form .btn {
                grid-column: auto;
                width: 100%;
            }
            .footer-container {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-bottom .container {
                flex-direction: column;
                text-align: center;
            }
            .btn {
                padding: 14px 22px;
            }
            .btn-sm.nav-cta {
                height: 48px;
            }
        }
        @media (max-width: 480px) {
            .container {
                padding: 0 18px;
            }
            .brand-text {
                font-size: 20px;
            }
            .cms-tdk {
                padding: 22px 18px;
            }
            .cms-tdk h1 {
                font-size: 22px;
            }
            .cta-actions .btn {
                width: 100%;
            }
        }

        /* ===== Focus visible ===== */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: 6px;
        }

/* roulang page: category1 */
:root {
  --bg-primary: #0A0F1E;
  --bg-secondary: #0F1628;
  --bg-footer: #070B14;
  --bg-deep: #070B14;
  --accent: #00E5FF;
  --accent-dark: #00B8CC;
  --accent-orange: #FF6B35;
  --success: #34D399;
  --warning: #FBBF24;
  --error: #F87171;
  --text-white: #FFFFFF;
  --text-primary: #E5EAF3;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  --glass-bg: rgba(255, 255, 255, 0.045);
  --glass-bg-hover: rgba(255, 255, 255, 0.08);
  --glass-border: rgba(255, 255, 255, 0.10);
  --glass-border-hover: rgba(0, 229, 255, 0.45);
  --radius-card: 16px;
  --radius-btn: 12px;
  --radius-input: 10px;
  --shadow-card: 0 8px 16px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 16px rgba(0, 229, 255, 0.35), 0 4px 12px rgba(0, 0, 0, 0.3);
  --transition: 180ms ease;
  --font-stack: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-stack);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover {
  color: var(--accent-dark);
}
img {
  max-width: 100%;
  display: block;
}
button {
  font-family: var(--font-stack);
}
input, select, textarea {
  font-family: var(--font-stack);
}
.container {
  max-width: 1260px;
  margin: 0 auto;
  padding: 0 24px;
}
.section {
  padding: clamp(64px, 8vw, 120px) 0;
}

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 68px;
  background: rgba(10, 15, 30, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  transition: box-shadow var(--transition);
}
.site-header.scrolled {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}
.site-header::after {
  content: '';
  display: block;
  height: 1px;
  background: linear-gradient(90deg, var(--accent), transparent 80%);
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  opacity: 0;
  transition: opacity 0.3s;
}
.site-header.scrolled::after {
  opacity: 1;
}
.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  position: relative;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-white);
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 0.02em;
  flex-shrink: 0;
}
.brand:hover {
  color: var(--text-white);
}
.brand-icon {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  border-radius: 8px;
  color: #fff;
  font-size: 16px;
  box-shadow: 0 0 12px rgba(0, 229, 255, 0.3);
}
.brand-text span {
  color: var(--accent);
}
.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-list {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}
.nav-link {
  display: inline-block;
  color: rgba(255, 255, 255, 0.75);
  font-size: 16px;
  padding: 8px 2px;
  position: relative;
  transition: color var(--transition);
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.25s ease;
}
.nav-link:hover {
  color: var(--accent);
}
.nav-link:hover::after,
.nav-link.active::after {
  transform: scaleX(1);
}
.nav-link.active {
  color: var(--text-white);
}
.nav-cta {
  flex-shrink: 0;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-btn);
  font-size: 16px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}
.btn-primary {
  background: linear-gradient(180deg, #00E5FF, #00B8CC);
  color: #fff;
  box-shadow: var(--shadow-glow);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 24px rgba(0, 229, 255, 0.5), 0 6px 16px rgba(0, 0, 0, 0.3);
  color: #fff;
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 0 10px rgba(0, 229, 255, 0.3);
}
.btn-outline {
  background: transparent;
  border: 1px solid rgba(0, 229, 255, 0.5);
  color: var(--accent);
}
.btn-outline:hover {
  background: rgba(0, 229, 255, 0.08);
  color: var(--accent);
  border-color: var(--accent);
}
.btn-sm {
  padding: 9px 20px;
  font-size: 14px;
  border-radius: 10px;
}
.btn-lg {
  padding: 15px 40px;
  font-size: 17px;
}
.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
  transition: border-color var(--transition);
}
.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-white);
  border-radius: 2px;
  transition: all 0.3s ease;
}
.nav-toggle:hover {
  border-color: var(--accent);
}
.nav-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ===== Hero ===== */
.page-hero {
  position: relative;
  padding: clamp(64px, 9vw, 120px) 0;
  background: linear-gradient(rgba(7, 11, 20, 0.65), rgba(10, 15, 30, 0.82)), url('/assets/images/backpic/back-1.png') center / cover no-repeat;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: linear-gradient(rgba(0, 229, 255, 0.04) 1px, transparent 1px), linear-gradient(90deg, rgba(0, 229, 255, 0.04) 1px, transparent 1px);
  background-size: 44px 44px;
  pointer-events: none;
}
.page-hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 180px;
  background: linear-gradient(135deg, transparent, rgba(0, 229, 255, 0.08), transparent);
  transform: skewY(-4deg);
  pointer-events: none;
}
.hero-content {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}
.hero-breadcrumb {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 18px;
}
.hero-breadcrumb a {
  color: var(--text-secondary);
}
.hero-breadcrumb a:hover {
  color: var(--accent);
}
.hero-breadcrumb .sep {
  margin: 0 6px;
  color: var(--text-muted);
}
.hero-breadcrumb .current {
  color: var(--accent);
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 999px;
  background: rgba(0, 229, 255, 0.08);
  border: 1px solid rgba(0, 229, 255, 0.3);
  color: var(--accent);
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 20px;
}
.hero-title {
  font-size: clamp(36px, 5vw, 58px);
  font-weight: 800;
  color: var(--text-white);
  line-height: 1.2;
  margin-bottom: 20px;
  letter-spacing: 0.01em;
}
.hero-title span {
  color: var(--accent);
}
.hero-subtitle {
  font-size: 17px;
  line-height: 1.75;
  color: var(--text-secondary);
  max-width: 560px;
  margin-bottom: 32px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}
.hero-panel {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  padding: 32px;
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
}
.hero-panel::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
}
.hero-panel-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-white);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.hero-panel-title i {
  color: var(--accent);
}
.hero-panel-sub {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 24px;
}
.hero-stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.hero-stat {
  text-align: center;
  padding: 16px 10px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
}
.hero-stat strong {
  display: block;
  font-size: 30px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1.2;
  margin-bottom: 4px;
}
.hero-stat span {
  font-size: 13px;
  color: var(--text-secondary);
}

/* ===== Stats Bar ===== */
.stats-bar {
  background: var(--bg-secondary);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  padding: 32px 0;
}
.stats-grid {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
}
.stat-item {
  flex: 1;
  min-width: 150px;
  text-align: center;
  border-left: 1px solid rgba(255, 255, 255, 0.08);
  padding: 8px 16px;
}
.stat-item:first-child {
  border-left: none;
}
.stat-num {
  display: block;
  font-size: clamp(28px, 3vw, 40px);
  font-weight: 700;
  color: var(--text-white);
  line-height: 1.2;
}
.stat-num small {
  font-size: 0.6em;
  color: var(--accent);
  font-weight: 400;
}
.stat-label {
  display: block;
  font-size: 14px;
  color: var(--text-secondary);
  margin-top: 6px;
}

/* ===== Section Head ===== */
.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 48px;
}
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section-tag::before,
.section-tag::after {
  content: '';
  width: 24px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent));
}
.section-tag::after {
  background: linear-gradient(90deg, var(--accent), transparent);
}
.section-title {
  font-size: clamp(28px, 3.6vw, 44px);
  font-weight: 800;
  color: var(--text-white);
  line-height: 1.3;
  margin-bottom: 12px;
}
.section-desc {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ===== News Showcase ===== */
.news-showcase {
  background: var(--bg-primary);
}
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.news-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-card);
  overflow: hidden;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}
.news-card:hover {
  transform: translateY(-4px);
  border-color: var(--glass-border-hover);
  background: var(--glass-bg-hover);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.4);
}
.news-card-featured {
  grid-column: span 2;
  grid-row: span 2;
}
.news-card-cover {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: var(--bg-secondary);
}
.news-card-featured .news-card-cover {
  aspect-ratio: 16 / 10;
}
.news-card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.news-card:hover .news-card-cover img {
  transform: scale(1.04);
}
.news-card-cover::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(0, 0, 0, 0.35));
}
.news-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  padding: 4px 14px;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  box-shadow: 0 0 12px rgba(0, 229, 255, 0.4);
}
.news-card-body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.news-card-body h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-white);
  line-height: 1.45;
  margin-bottom: 10px;
  transition: color var(--transition);
}
.news-card-featured .news-card-body h3 {
  font-size: 22px;
}
.news-card:hover .news-card-body h3 {
  color: var(--accent);
}
.news-summary {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-card-featured .news-summary {
  -webkit-line-clamp: 3;
  font-size: 15px;
}
.news-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: auto;
  font-size: 13px;
  color: var(--text-muted);
}
.news-date i {
  margin-right: 4px;
}
.news-category {
  padding: 2px 10px;
  border-radius: 999px;
  background: rgba(255, 107, 53, 0.12);
  border: 1px solid rgba(255, 107, 53, 0.3);
  color: var(--accent-orange);
  font-size: 12px;
  font-weight: 500;
}
.news-more {
  margin-left: auto;
  color: var(--accent);
  font-size: 14px;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.news-more i {
  transition: transform var(--transition);
}
.news-more:hover i {
  transform: translateX(4px);
}
.news-view-all {
  margin-top: 40px;
  text-align: center;
}

/* ===== Features ===== */
.features-section {
  background: var(--bg-secondary);
  position: relative;
  overflow: hidden;
}
.features-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: linear-gradient(rgba(0, 229, 255, 0.025) 1px, transparent 1px), linear-gradient(90deg, rgba(0, 229, 255, 0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}
.features-grid {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  z-index: 1;
}
.feature-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-card);
  padding: 32px 24px;
  transition: all var(--transition);
}
.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--glass-border-hover);
  box-shadow: var(--shadow-card);
}
.feature-icon {
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.15), rgba(0, 229, 255, 0.05));
  border: 1px solid rgba(0, 229, 255, 0.25);
  color: var(--accent);
  font-size: 20px;
  margin-bottom: 20px;
}
.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 10px;
}
.feature-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ===== Coverage ===== */
.coverage-section {
  background: var(--bg-primary);
}
.coverage-box {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-card);
  padding: clamp(32px, 5vw, 56px);
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 48px;
  align-items: center;
}
.coverage-left .section-title {
  text-align: left;
  margin-bottom: 14px;
}
.coverage-left .section-desc {
  text-align: left;
  max-width: 360px;
}
.coverage-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.coverage-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.09);
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 500;
  transition: all var(--transition);
}
.coverage-tag i {
  color: var(--accent);
  font-size: 13px;
}
.coverage-tag:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(0, 229, 255, 0.06);
  transform: translateY(-2px);
}

/* ===== Flow ===== */
.flow-section {
  background: var(--bg-secondary);
}
.flow-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  position: relative;
}
.flow-grid::before {
  content: '';
  position: absolute;
  top: 70px;
  left: 12%;
  right: 12%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 229, 255, 0.35), transparent);
}
.flow-step {
  position: relative;
  text-align: center;
  padding: 0 16px;
}
.flow-num {
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent-orange), #FF8C55);
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 24px;
  box-shadow: 0 0 16px rgba(255, 107, 53, 0.3);
  position: relative;
  z-index: 2;
}
.flow-icon {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: var(--glass-bg);
  border: 1px solid rgba(0, 229, 255, 0.2);
  color: var(--accent);
  font-size: 24px;
}
.flow-step h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 10px;
}
.flow-step p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ===== FAQ ===== */
.faq-section {
  background: var(--bg-primary);
}
.faq-wrap {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.faq-item {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  overflow: hidden;
  transition: all var(--transition);
}
.faq-item.active {
  border-color: rgba(0, 229, 255, 0.35);
  background: rgba(255, 255, 255, 0.055);
}
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  background: transparent;
  border: none;
  color: var(--text-white);
  font-size: 16px;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  transition: color var(--transition);
}
.faq-question:hover {
  color: var(--accent);
}
.faq-item.active .faq-question {
  color: var(--accent);
}
.faq-toggle {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--text-secondary);
  font-size: 14px;
  flex-shrink: 0;
  transition: all 0.25s ease;
}
.faq-item.active .faq-toggle {
  transform: rotate(45deg);
  border-color: var(--accent);
  color: var(--accent);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease;
}
.faq-answer-inner {
  padding: 0 24px 20px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 16px;
  margin-top: 0;
}

/* ===== CTA ===== */
.cta-section {
  position: relative;
  padding: clamp(64px, 8vw, 100px) 0;
  background: radial-gradient(ellipse at center, rgba(0, 229, 255, 0.08), transparent 60%), linear-gradient(rgba(7, 11, 20, 0.7), rgba(7, 11, 20, 0.9)), url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
}
.cta-box {
  max-width: 880px;
  margin: 0 auto;
  text-align: center;
  padding: clamp(40px, 6vw, 64px);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: 20px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.cta-title {
  font-size: clamp(28px, 3.6vw, 40px);
  font-weight: 800;
  color: var(--text-white);
  margin-bottom: 14px;
}
.cta-desc {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 32px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}
.cta-form {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr auto;
  gap: 14px;
  text-align: left;
  margin-top: 32px;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.form-group label {
  font-size: 13px;
  color: var(--text-secondary);
}
.form-input {
  padding: 11px 16px;
  border-radius: 10px;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--text-white);
  font-size: 14px;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.form-input::placeholder {
  color: var(--text-muted);
}
.form-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.1);
}
.form-submit {
  align-self: flex-end;
  margin-bottom: 1px;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--bg-footer);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 60px;
}
.footer-container {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 40px;
}
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text-white);
  font-size: 22px;
  font-weight: 800;
  margin-bottom: 14px;
}
.footer-brand i {
  color: var(--accent);
  font-size: 18px;
}
.footer-brand-col p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 320px;
}
.footer-col h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-white);
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 10px;
}
.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 28px;
  height: 2px;
  background: var(--accent);
}
.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-col ul li {
  font-size: 14px;
  color: var(--text-secondary);
}
.footer-col ul li i {
  width: 20px;
  color: var(--text-muted);
}
.footer-col a {
  color: var(--text-secondary);
  transition: color var(--transition);
}
.footer-col a:hover {
  color: var(--accent);
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 18px 0;
}
.footer-bottom .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}
.footer-bottom p {
  font-size: 13px;
  color: var(--text-muted);
}
.footer-icp {
  font-size: 13px;
  color: var(--text-muted);
}

/* ===== Focus states ===== */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ===== Responsive ===== */
@media (max-width: 1199px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .coverage-box {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .cta-form {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 991px) {
  .hero-content {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .hero-panel {
    max-width: 480px;
  }
  .news-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .news-card-featured {
    grid-column: span 2;
    grid-row: auto;
  }
  .footer-container {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}
@media (max-width: 767px) {
  .nav-toggle {
    display: flex;
  }
  .nav-menu {
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    background: rgba(7, 11, 20, 0.98);
    flex-direction: column;
    align-items: stretch;
    padding: 24px 20px 32px;
    gap: 16px;
    transform: translateY(-120%);
    transition: transform 0.3s ease;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.5);
    z-index: 99;
  }
  .nav-menu.open {
    transform: translateY(0);
  }
  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
  }
  .nav-link {
    display: block;
    padding: 12px 8px;
    font-size: 16px;
  }
  .nav-link::after {
    bottom: 2px;
  }
  .nav-cta {
    width: 100%;
    justify-content: center;
    margin-top: 8px;
  }
  .stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
  .stat-item {
    border-left: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    padding-bottom: 16px;
  }
  .news-grid {
    grid-template-columns: 1fr;
  }
  .news-card-featured {
    grid-column: span 1;
  }
  .news-card-featured .news-card-body h3 {
    font-size: 18px;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .flow-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .flow-grid::before {
    display: none;
  }
  .flow-step {
    position: relative;
    padding-left: 0;
  }
  .cta-form {
    grid-template-columns: 1fr;
  }
  .cta-form .btn {
    width: 100%;
  }
  .footer-container {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-bottom .container {
    flex-direction: column;
    text-align: center;
  }
  .coverage-tags {
    gap: 8px;
  }
  .coverage-tag {
    padding: 8px 14px;
    font-size: 13px;
  }
}
@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }
  .btn-lg {
    width: 100%;
  }
  .news-meta {
    flex-wrap: wrap;
    gap: 8px;
  }
  .news-more {
    margin-left: 0;
    width: 100%;
    margin-top: 4px;
  }
  .coverage-box {
    padding: 24px;
  }
  .hero-panel {
    padding: 24px;
  }
  .hero-stats-grid {
    gap: 12px;
  }
  .hero-stat strong {
    font-size: 24px;
  }
}

/* roulang page: category2 */
:root {
    --bg-deep: #0A0F1E;
    --bg-dark: #0F1628;
    --bg-darker: #070B14;
    --cyan: #00E5FF;
    --cyan-deep: #0088FF;
    --orange: #FF6B35;
    --success: #34D399;
    --warning: #FBBF24;
    --danger: #F87171;
    --text-white: #FFFFFF;
    --text-main: #E5EAF3;
    --text-secondary: #94A3B8;
    --text-muted: #64748B;
    --glass-bg: rgba(255, 255, 255, 0.045);
    --glass-bg-hover: rgba(255, 255, 255, 0.08);
    --glass-border: rgba(255, 255, 255, 0.10);
    --glass-border-hover: rgba(0, 229, 255, 0.45);
    --radius: 16px;
    --radius-sm: 10px;
    --shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
    --glow-cyan: 0 0 16px rgba(0, 229, 255, 0.35);
    --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
    --container: 1200px;
  }
  * { margin: 0; padding: 0; box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body {
    font-family: var(--font);
    background: var(--bg-deep);
    color: var(--text-main);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
  }
  a { color: var(--cyan); text-decoration: none; transition: color .2s ease; }
  img { max-width: 100%; display: block; }
  ul { list-style: none; }
  button, input, select { font-family: inherit; font-size: inherit; }
  input:focus, select:focus, button:focus, a:focus { outline: 2px solid var(--cyan); outline-offset: 2px; }
  .container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
  .section { padding: clamp(64px, 8vw, 110px) 0; position: relative; }
  .section-alt { background: var(--bg-dark); }
  .section-head { max-width: 760px; margin-bottom: 48px; }
  .section-head h2 { font-size: clamp(28px, 4vw, 38px); font-weight: 800; color: var(--text-white); line-height: 1.25; margin-bottom: 12px; }
  .section-head p { font-size: 16px; color: var(--text-secondary); line-height: 1.7; }
  .badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    background: rgba(0, 229, 255, 0.10);
    color: var(--cyan);
    border: 1px solid rgba(0, 229, 255, 0.25);
  }
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 15px;
    padding: 12px 24px;
    border: none;
    cursor: pointer;
    transition: all .2s ease;
    line-height: 1.4;
    white-space: nowrap;
  }
  .btn-primary {
    background: linear-gradient(135deg, var(--cyan) 0%, var(--cyan-deep) 100%);
    color: #fff;
    box-shadow: 0 0 16px rgba(0, 229, 255, 0.35), 0 4px 12px rgba(0, 0, 0, 0.3);
  }
  .btn-primary:hover {
    box-shadow: 0 0 26px rgba(0, 229, 255, 0.55), 0 6px 16px rgba(0, 0, 0, 0.35);
    transform: translateY(-1px);
    color: #fff;
  }
  .btn-primary:active { transform: translateY(0); box-shadow: 0 0 12px rgba(0, 229, 255, 0.25); }
  .btn-ghost {
    background: transparent;
    border: 1px solid rgba(0, 229, 255, 0.5);
    color: var(--cyan);
  }
  .btn-ghost:hover { background: rgba(0, 229, 255, 0.08); color: var(--cyan); }
  .btn-lg { padding: 15px 34px; font-size: 16px; }
  .btn-sm { padding: 8px 18px; font-size: 14px; }
  .glass-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: transform .18s ease, border-color .18s ease, background .18s ease, box-shadow .18s ease;
  }
  .glass-card:hover {
    border-color: var(--glass-border-hover);
    background: var(--glass-bg-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  }

  /* Header */
  .site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 68px;
    background: rgba(10, 15, 30, 0.85);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    z-index: 1000;
    transition: background .3s ease, box-shadow .3s ease;
  }
  .site-header.scrolled {
    background: rgba(7, 11, 20, 0.96);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
  }
  .site-header::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -1px;
    height: 2px;
    background: linear-gradient(90deg, rgba(0, 229, 255, 0.7), rgba(0, 229, 255, 0.06) 70%, transparent);
    pointer-events: none;
  }
  .header-container { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
  .brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
  .brand-icon {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: linear-gradient(135deg, rgba(0, 229, 255, 0.2), rgba(0, 229, 255, 0.05));
    border: 1px solid rgba(0, 229, 255, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--cyan);
    font-size: 15px;
    box-shadow: 0 0 12px rgba(0, 229, 255, 0.15);
  }
  .brand-text { font-size: 20px; font-weight: 800; color: var(--text-white); letter-spacing: 0.02em; }
  .brand-text span { color: var(--cyan); }
  .nav-menu { display: flex; align-items: center; gap: 28px; }
  .nav-list { display: flex; align-items: center; gap: 28px; }
  .nav-link {
    color: rgba(255, 255, 255, 0.75);
    font-size: 15px;
    font-weight: 500;
    padding: 6px 0;
    position: relative;
    transition: color .2s ease;
  }
  .nav-link:hover { color: var(--cyan); }
  .nav-link.active { color: var(--text-white); }
  .nav-link.active::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -2px;
    width: 100%;
    height: 2px;
    background: var(--cyan);
    border-radius: 2px;
    box-shadow: 0 0 12px rgba(0, 229, 255, 0.6);
  }
  .nav-cta { flex-shrink: 0; }
  .nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
  }
  .nav-toggle span {
    width: 22px;
    height: 2px;
    background: var(--text-white);
    border-radius: 2px;
    transition: transform .2s ease, opacity .2s ease;
  }
  .nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle.open span:nth-child(2) { opacity: 0; }
  .nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  /* Hero */
  .hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    overflow: hidden;
  }
  .hero-bg {
    position: absolute;
    inset: 0;
    background-image: url('/assets/images/backpic/back-1.png');
    background-size: cover;
    background-position: center;
  }
  .hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(7, 11, 20, 0.82), rgba(10, 15, 30, 0.68));
  }
  .hero-grid-overlay {
    position: absolute;
    inset: 0;
    background-image:
      linear-gradient(rgba(0, 229, 255, 0.04) 1px, transparent 1px),
      linear-gradient(90deg, rgba(0, 229, 255, 0.04) 1px, transparent 1px);
    background-size: 44px 44px;
    pointer-events: none;
  }
  .hero-content {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 64px;
    align-items: center;
  }
  .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 22px;
  }
  .hero-badge i { font-size: 14px; }
  .hero h1 {
    font-size: clamp(36px, 5.5vw, 60px);
    font-weight: 800;
    line-height: 1.18;
    color: var(--text-white);
    margin-bottom: 22px;
    letter-spacing: 0.01em;
    max-width: 620px;
  }
  .hero h1 span { color: var(--cyan); }
  .hero-lead {
    font-size: 17px;
    line-height: 1.75;
    color: var(--text-secondary);
    max-width: 520px;
    margin-bottom: 34px;
  }
  .hero-actions { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
  .hero-scroll {
    position: absolute;
    bottom: 28px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--text-muted);
    font-size: 18px;
    z-index: 3;
    animation: floatDown 2s ease-in-out infinite;
  }
  @keyframes floatDown {
    0%, 100% { transform: translate(-50%, 0); opacity: 0.8; }
    50% { transform: translate(-50%, 8px); opacity: 0.3; }
  }
  .hero-panel { padding: 26px 26px 22px; max-width: 380px; width: 100%; }
  .panel-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
  .panel-title { font-size: 14px; color: var(--text-secondary); display: flex; align-items: center; gap: 8px; }
  .panel-title i { color: var(--cyan); }
  .live-badge {
    font-size: 12px;
    color: var(--danger);
    background: rgba(248, 113, 113, 0.1);
    border: 1px solid rgba(248, 113, 113, 0.3);
    border-radius: 999px;
    padding: 3px 10px;
    display: inline-flex;
    align-items: center;
  }
  .pulse-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--danger);
    display: inline-block;
    margin-right: 6px;
    animation: pulse 1.2s infinite;
  }
  @keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(248, 113, 113, 0.6); }
    50% { box-shadow: 0 0 0 6px rgba(248, 113, 113, 0); }
  }
  .panel-score {
    font-size: 54px;
    font-weight: 800;
    color: var(--text-white);
    text-align: center;
    line-height: 1.1;
    letter-spacing: 0.04em;
  }
  .panel-score span { color: var(--orange); margin: 0 8px; }
  .panel-teams {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    margin: 14px 0 20px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-white);
  }
  .panel-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    text-align: center;
    padding: 14px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    margin-bottom: 14px;
  }
  .p-stat b { display: block; font-size: 22px; font-weight: 800; color: var(--text-white); }
  .p-stat span { font-size: 12px; color: var(--text-muted); }
  .panel-foot { text-align: center; font-size: 12px; color: var(--text-muted); }

  /* Stats strip */
  .stats-strip { position: relative; z-index: 3; margin-top: -50px; }
  .stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    background: rgba(15, 22, 40, 0.9);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    overflow: hidden;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
  }
  .stats-item { padding: 30px 22px; text-align: center; border-right: 1px solid rgba(255, 255, 255, 0.06); }
  .stats-item:last-child { border-right: none; }
  .stats-number { font-size: 34px; font-weight: 800; color: var(--text-white); line-height: 1.2; }
  .stats-number em { font-style: normal; color: var(--orange); }
  .stats-label { font-size: 14px; color: var(--text-secondary); margin-top: 8px; }

  /* Features */
  .feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
  .feature-card { padding: 30px 26px; }
  .feature-icon {
    width: 46px;
    height: 46px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(0, 229, 255, 0.18), rgba(0, 229, 255, 0.04));
    border: 1px solid rgba(0, 229, 255, 0.4);
    color: var(--cyan);
    font-size: 18px;
    margin-bottom: 18px;
    box-shadow: 0 0 14px rgba(0, 229, 255, 0.12);
  }
  .feature-card h3 { color: var(--text-white); font-size: 18px; margin-bottom: 10px; font-weight: 700; }
  .feature-card p { color: var(--text-secondary); font-size: 14px; line-height: 1.65; }

  /* Matches */
  .matches { background: var(--bg-dark); }
  .split-layout { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 48px; align-items: center; }
  .match-visual img { border-radius: var(--radius); object-fit: cover; aspect-ratio: 4 / 3; box-shadow: 0 18px 40px rgba(0, 0, 0, 0.4); }
  .match-list { display: flex; flex-direction: column; gap: 14px; }
  .match-row {
    display: grid;
    grid-template-columns: auto auto 1fr auto;
    align-items: center;
    gap: 16px;
    padding: 18px 20px;
    border-radius: 14px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    transition: border-color .2s ease, background .2s ease;
  }
  .match-row:hover { border-color: var(--glass-border-hover); background: rgba(255, 255, 255, 0.07); }
  .match-time { font-size: 13px; color: var(--text-secondary); min-width: 48px; }
  .match-league {
    font-size: 12px;
    padding: 3px 10px;
    background: rgba(0, 229, 255, 0.1);
    color: var(--cyan);
    border-radius: 999px;
    text-align: center;
  }
  .match-teams { font-size: 15px; color: var(--text-white); font-weight: 500; }
  .match-teams b { margin: 0 10px; font-size: 19px; color: var(--orange); font-weight: 800; }
  .match-status { font-size: 12px; display: flex; align-items: center; gap: 6px; }
  .match-status.live { color: var(--danger); }
  .match-status.finished { color: var(--text-muted); }
  .match-status.d-notice { color: var(--warning); }
  .match-row .live-dot { margin: 0; }

  /* Metrics */
  .metrics-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
  .metric-card { padding: 26px 24px; }
  .metric-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 107, 53, 0.12);
    border: 1px solid rgba(255, 107, 53, 0.35);
    color: var(--orange);
    font-size: 17px;
    margin-bottom: 16px;
  }
  .metric-card h4 { color: var(--text-white); font-size: 17px; margin-bottom: 8px; font-weight: 700; }
  .metric-card p { color: var(--text-secondary); font-size: 14px; line-height: 1.65; margin-bottom: 18px; }
  .metric-row { display: flex; justify-content: space-between; font-size: 13px; color: var(--text-muted); margin-bottom: 6px; }
  .metric-row b { color: var(--cyan); font-weight: 700; }
  .metric-bar { height: 6px; background: rgba(255, 255, 255, 0.08); border-radius: 999px; overflow: hidden; }
  .metric-bar span { display: block; height: 100%; background: linear-gradient(90deg, var(--cyan), var(--cyan-deep)); border-radius: 999px; }

  /* Scenarios */
  .scenario-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
  .scenario-card { padding: 34px 28px; position: relative; overflow: hidden; }
  .scenario-card::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--cyan), transparent 80%);
    opacity: 0.6;
  }
  .scenario-card:nth-child(2)::before { background: linear-gradient(90deg, var(--orange), transparent 80%); }
  .scenario-card:nth-child(3)::before { background: linear-gradient(90deg, var(--warning), transparent 80%); }
  .scenario-card i { font-size: 28px; color: var(--orange); margin-bottom: 20px; display: block; }
  .scenario-card h3 { color: var(--text-white); font-size: 19px; font-weight: 700; margin-bottom: 10px; }
  .scenario-card p { color: var(--text-secondary); font-size: 14px; line-height: 1.7; }

  /* FAQ */
  .faq-list { max-width: 860px; margin: 0 auto; }
  .faq-item {
    border-radius: 14px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    margin-bottom: 14px;
    overflow: hidden;
    transition: border-color .2s ease;
  }
  .faq-item.active { border-color: rgba(0, 229, 255, 0.35); }
  .faq-question {
    width: 100%;
    text-align: left;
    padding: 20px 24px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-white);
    background: transparent;
    border: none;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    transition: color .2s ease;
  }
  .faq-question i { color: var(--cyan); font-size: 18px; transition: transform .2s ease; }
  .faq-item.active .faq-question { color: var(--cyan); }
  .faq-item.active .faq-question i { transform: rotate(45deg); }
  .faq-answer {
    max-height: 0;
    overflow: hidden;
    padding: 0 24px;
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.7;
    transition: max-height .22s ease, padding .22s ease;
  }
  .faq-item.active .faq-answer { max-height: 360px; padding: 0 24px 22px; }

  /* CTA */
  .cta {
    position: relative;
    padding: 120px 0;
    background-image: url('/assets/images/backpic/back-2.webp');
    background-size: cover;
    background-position: center;
  }
  .cta::before {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(7, 11, 20, 0.78);
  }
  .cta .container { position: relative; z-index: 1; }
  .cta-card {
    position: relative;
    overflow: hidden;
    border-radius: 24px;
    padding: clamp(36px, 6vw, 64px);
    border: 1px solid rgba(0, 229, 255, 0.22);
    background:
      radial-gradient(circle at 30% 20%, rgba(0, 229, 255, 0.14), transparent 50%),
      radial-gradient(circle at 80% 80%, rgba(255, 107, 53, 0.08), transparent 50%),
      rgba(15, 22, 40, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    text-align: center;
  }
  .cta-card h2 { font-size: clamp(30px, 5vw, 42px); font-weight: 800; color: var(--text-white); margin-bottom: 14px; }
  .cta-card > p { color: var(--text-secondary); font-size: 16px; margin-bottom: 34px; max-width: 520px; margin-left: auto; margin-right: auto; }
  .cta-form {
    display: grid;
    grid-template-columns: repeat(3, 1fr) auto;
    gap: 14px;
    max-width: 820px;
    margin: 0 auto;
    text-align: left;
  }
  .cta-form input,
  .cta-form select {
    background: rgba(0, 0, 0, 0.25);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-sm);
    padding: 14px 16px;
    color: var(--text-white);
    outline: none;
    transition: border-color .2s ease, box-shadow .2s ease;
  }
  .cta-form input::placeholder { color: var(--text-muted); }
  .cta-form input:focus,
  .cta-form select:focus { border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.15); }
  .cta-form select { appearance: none; color: var(--text-main); cursor: pointer; }
  .cta-form select option { background: var(--bg-dark); color: var(--text-white); }
  .form-msg { margin-top: 16px; font-size: 14px; color: var(--success); text-align: center; min-height: 22px; }

  /* Footer */
  .site-footer { background: var(--bg-darker); border-top: 1px solid rgba(255, 255, 255, 0.08); padding-top: 64px; }
  .footer-container { display: grid; grid-template-columns: 2fr 1fr 1fr 1.2fr; gap: 48px; padding-bottom: 48px; }
  .footer-brand { display: flex; align-items: center; gap: 10px; color: var(--text-white); font-size: 20px; font-weight: 800; margin-bottom: 14px; }
  .footer-brand i { color: var(--cyan); font-size: 18px; }
  .footer-brand-col p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; max-width: 280px; }
  .footer-col h4 { color: var(--text-white); font-size: 15px; font-weight: 600; margin-bottom: 18px; }
  .footer-col li { margin-bottom: 10px; font-size: 14px; color: var(--text-secondary); }
  .footer-col a { color: var(--text-secondary); transition: color .2s ease; }
  .footer-col a:hover { color: var(--cyan); }
  .footer-col li i { color: var(--cyan); margin-right: 8px; width: 14px; text-align: center; }
  .footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.06); padding: 22px 0; }
  .footer-bottom .container { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; color: var(--text-muted); font-size: 13px; }
  .footer-icp { color: var(--text-muted); }

  /* Responsive */
  @media (max-width: 1024px) {
    .feature-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
    .metrics-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
    .split-layout { grid-template-columns: 1fr; gap: 32px; }
    .match-visual img { max-width: 100%; }
    .hero-content { grid-template-columns: 1fr; gap: 40px; }
    .hero-panel { max-width: 100%; }
    .footer-container { grid-template-columns: 1fr 1fr; gap: 36px; }
    .cta-form { grid-template-columns: 1fr 1fr; max-width: 640px; }
    .cta-form .btn { grid-column: span 2; width: 100%; }
  }
  @media (max-width: 768px) {
    .nav-toggle { display: flex; }
    .nav-menu {
      position: fixed;
      top: 68px;
      left: 0;
      right: 0;
      background: #0A0F1E;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      padding: 24px;
      display: none;
      flex-direction: column;
      gap: 20px;
      align-items: flex-start;
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
    }
    .nav-menu.open { display: flex; }
    .nav-list { flex-direction: column; gap: 14px; width: 100%; }
    .nav-link { font-size: 16px; display: block; width: 100%; }
    .nav-cta { order: 3; }
    .hero { min-height: auto; padding: 110px 0 70px; }
    .hero h1 { font-size: clamp(30px, 8vw, 40px); }
    .hero-actions .btn { flex: 1; }
    .stats-strip { margin-top: -30px; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .stats-item { border-right: none; border-bottom: 1px solid rgba(255, 255, 255, 0.06); }
    .stats-item:nth-child(2n) { border-left: 1px solid rgba(255, 255, 255, 0.06); }
    .scenario-grid { grid-template-columns: 1fr; gap: 20px; }
    .cta-form { grid-template-columns: 1fr; max-width: 480px; }
    .cta-form .btn { grid-column: span 1; width: 100%; }
    .footer-container { grid-template-columns: 1fr; gap: 32px; }
    .footer-bottom .container { flex-direction: column; text-align: center; }
    .match-row { grid-template-columns: auto 1fr auto; }
    .match-league { display: none; }
  }
  @media (max-width: 520px) {
    .container { padding: 0 18px; }
    .feature-grid, .metrics-grid { grid-template-columns: 1fr; }
    .hero-actions { flex-direction: column; align-items: stretch; }
    .match-row { grid-template-columns: 1fr; padding: 16px; }
    .match-time, .match-status { font-size: 13px; }
    .match-teams { font-size: 16px; }
    .stats-number { font-size: 28px; }
    .cta-card { padding: 28px 20px; }
    .cta-card h2 { font-size: 26px; }
    .btn-lg { padding: 14px 24px; }
  }

/* roulang page: category3 */
:root {
  --bg-primary: #0A0F1E;
  --bg-secondary: #0F1628;
  --bg-deep: #070B14;
  --accent-cyan: #00E5FF;
  --accent-orange: #FF6B35;
  --success: #34D399;
  --warning: #FBBF24;
  --error: #F87171;
  --text-white: #FFFFFF;
  --text-primary: #E5EAF3;
  --text-secondary: #94A3B8;
  --text-weak: #64748B;
  --glass-bg: rgba(255,255,255,0.045);
  --glass-border: rgba(255,255,255,0.10);
  --radius-card: 16px;
  --radius-btn: 12px;
  --radius-pill: 999px;
  --shadow-card: 0 12px 28px rgba(0,0,0,0.35);
  --shadow-glow: 0 0 16px rgba(0,229,255,0.35), 0 4px 12px rgba(0,0,0,0.3);
  --transition: 180ms ease;
  --font-family: "PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --max-width: 1240px;
}

* { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body { font-family:var(--font-family); background:var(--bg-primary); color:var(--text-primary); line-height:1.7; -webkit-font-smoothing:antialiased; }
img { display:block; max-width:100%; }
a { color:var(--accent-cyan); text-decoration:none; transition:color var(--transition); }
a:hover { color:#66f0ff; }
button, input, select, textarea { font-family:inherit; font-size:16px; }
ul { list-style:none; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, summary:focus-visible { outline:2px solid var(--accent-cyan); outline-offset:2px; }

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

.btn { display:inline-flex; align-items:center; justify-content:center; gap:8px; border-radius:var(--radius-btn); padding:13px 26px; font-size:16px; font-weight:600; cursor:pointer; border:none; transition:all var(--transition); line-height:1.2; }
.btn-primary { background:linear-gradient(135deg, #00E5FF, #0284a7); color:#0A0F1E; box-shadow:var(--shadow-glow); }
.btn-primary:hover { box-shadow:0 0 24px rgba(0,229,255,0.5), 0 6px 18px rgba(0,0,0,0.35); transform:translateY(-1px); color:#0A0F1E; }
.btn-primary:active { transform:translateY(1px); box-shadow:0 0 10px rgba(0,229,255,0.25); }
.btn-outline { background:transparent; border:1px solid rgba(0,229,255,0.5); color:var(--accent-cyan); }
.btn-outline:hover { background:rgba(0,229,255,0.08); color:var(--accent-cyan); }
.btn-sm { padding:10px 20px; font-size:14px; }
.btn-block { width:100%; }

.badge { display:inline-flex; align-items:center; gap:4px; padding:4px 12px; border-radius:var(--radius-pill); background:rgba(0,229,255,0.08); border:1px solid rgba(0,229,255,0.25); color:var(--accent-cyan); font-size:12px; font-weight:600; }
.badge.orange { background:rgba(255,107,53,0.1); border-color:rgba(255,107,53,0.3); color:var(--accent-orange); }
.text-link { color:var(--accent-cyan); font-weight:600; font-size:15px; display:inline-flex; align-items:center; gap:6px; transition:gap var(--transition), color var(--transition); }
.text-link:hover { gap:9px; color:#fff; }

.section { padding:clamp(56px, 7vw, 96px) 0; }
.section-alt { background:var(--bg-secondary); }
.section-head { max-width:720px; margin:0 auto 48px; text-align:center; }
.section-tag { display:inline-block; padding:4px 14px; border-radius:var(--radius-pill); background:rgba(0,229,255,0.1); border:1px solid rgba(0,229,255,0.25); color:var(--accent-cyan); font-size:12px; font-weight:600; letter-spacing:0.08em; text-transform:uppercase; margin-bottom:12px; }
.section-title { font-size:clamp(26px, 4vw, 40px); color:#fff; font-weight:800; line-height:1.25; }
.section-desc { font-size:16px; color:var(--text-secondary); margin-top:14px; line-height:1.7; }

.site-header { position:sticky; top:0; z-index:1000; background:rgba(10,15,30,0.85); backdrop-filter:blur(12px); border-bottom:1px solid rgba(255,255,255,0.08); height:68px; }
.site-header::after { content:''; position:absolute; bottom:-1px; left:0; width:100%; height:1px; background:linear-gradient(90deg, transparent, rgba(0,229,255,0.6), transparent); opacity:0; transition:opacity 180ms ease; }
.site-header.scrolled::after { opacity:1; }
.header-container { display:flex; align-items:center; justify-content:space-between; height:68px; }
.brand { display:flex; align-items:center; gap:10px; color:#fff; font-weight:800; font-size:22px; }
.brand-icon { width:38px; height:38px; border-radius:12px; background:linear-gradient(135deg, rgba(0,229,255,0.15), rgba(255,107,53,0.15)); display:flex; align-items:center; justify-content:center; color:var(--accent-cyan); font-size:18px; border:1px solid rgba(0,229,255,0.25); }
.brand-text span { color:var(--accent-cyan); }
.nav-menu { display:flex; align-items:center; gap:30px; }
.nav-list { display:flex; list-style:none; gap:28px; }
.nav-link { color:rgba(255,255,255,0.75); font-size:16px; font-weight:500; padding:8px 2px; position:relative; background:none; border:none; cursor:pointer; transition:color var(--transition); }
.nav-link:hover { color:var(--accent-cyan); }
.nav-link.active { color:#fff; }
.nav-link.active::after { content:''; position:absolute; left:0; bottom:-2px; width:100%; height:2px; background:var(--accent-cyan); box-shadow:0 0 10px rgba(0,229,255,0.6); }
.nav-cta { margin-left:6px; }
.nav-toggle { display:none; background:none; border:0; cursor:pointer; flex-direction:column; gap:5px; padding:8px; }
.nav-toggle span { width:24px; height:2px; background:#fff; border-radius:3px; transition:transform 180ms ease, opacity 180ms ease; }
.nav-toggle.active span:nth-child(1) { transform:translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity:0; }
.nav-toggle.active span:nth-child(3) { transform:translateY(-7px) rotate(-45deg); }

.page-hero { position:relative; padding:clamp(64px, 8vw, 110px) 0; background:url('/assets/images/backpic/back-3.webp') center/cover; }
.page-hero::before { content:''; position:absolute; inset:0; background:rgba(7,11,20,0.72); }
.page-hero::after { content:''; position:absolute; inset:0; background-image:linear-gradient(rgba(0,229,255,0.04) 1px, transparent 1px), linear-gradient(90deg, rgba(0,229,255,0.04) 1px, transparent 1px); background-size:40px 40px; }
.hero-inner { position:relative; z-index:2; display:grid; grid-template-columns:1.15fr 0.85fr; gap:50px; align-items:center; }
.breadcrumb { display:flex; align-items:center; gap:8px; font-size:14px; color:var(--text-secondary); margin-bottom:18px; flex-wrap:wrap; }
.breadcrumb a { color:var(--text-secondary); }
.breadcrumb a:hover { color:var(--accent-cyan); }
.bc-sep { color:var(--text-weak); }
.breadcrumb .current { color:var(--accent-cyan); }
.hero-tag { display:inline-block; background:rgba(0,229,255,0.1); border:1px solid rgba(0,229,255,0.25); color:var(--accent-cyan); padding:5px 14px; border-radius:var(--radius-pill); font-size:13px; font-weight:600; letter-spacing:0.04em; margin-bottom:16px; }
.hero-content h1 { font-size:clamp(36px, 6vw, 60px); font-weight:800; color:#fff; line-height:1.15; margin-bottom:20px; }
.hero-content h1 span { color:var(--accent-cyan); }
.hero-lead { font-size:18px; color:var(--text-secondary); max-width:580px; margin-bottom:30px; line-height:1.75; }
.hero-actions { display:flex; gap:16px; flex-wrap:wrap; }
.hero-note { margin-top:18px; font-size:14px; color:var(--text-weak); }
.hero-panel { background:var(--glass-bg); border:1px solid var(--glass-border); border-radius:var(--radius-card); backdrop-filter:blur(12px); padding:26px 28px; box-shadow:var(--shadow-card); }
.hero-panel h3 { color:#fff; font-size:18px; font-weight:700; margin-bottom:6px; }
.hero-panel > p { color:var(--text-secondary); font-size:14px; margin-bottom:8px; }
.hero-resource-list { margin-top:14px; }
.hero-resource-list li { display:grid; grid-template-columns:36px 1fr auto; align-items:center; gap:12px; padding:11px 0; border-bottom:1px solid rgba(255,255,255,0.06); }
.hero-resource-list li:last-child { border-bottom:0; }
.hero-resource-list i { width:36px; height:36px; border-radius:10px; background:rgba(0,229,255,0.1); color:var(--accent-cyan); display:flex; align-items:center; justify-content:center; font-size:14px; }
.hero-resource-list span { color:var(--text-primary); font-size:15px; }
.hero-resource-list strong { color:var(--text-secondary); font-weight:500; font-size:14px; }
.hero-panel-foot { display:flex; gap:10px; margin-top:20px; }

.stats-bar { background:var(--bg-secondary); border-block:1px solid rgba(255,255,255,0.06); padding:36px 0; }
.stats-grid { display:grid; grid-template-columns:repeat(4, 1fr); gap:24px; }
.stat-item { text-align:center; position:relative; padding:8px 0; }
.stat-item + .stat-item::before { content:''; position:absolute; left:-12px; top:20%; height:60%; width:1px; background:rgba(255,255,255,0.07); }
.stat-number { font-size:34px; font-weight:700; color:var(--accent-cyan); line-height:1.2; }
.stat-number.orange { color:var(--accent-orange); }
.stat-label { font-size:14px; color:var(--text-secondary); margin-top:8px; }

.mode-grid { display:grid; grid-template-columns:repeat(3, 1fr); gap:24px; }
.mode-card { position:relative; background:var(--glass-bg); border:1px solid var(--glass-border); border-radius:var(--radius-card); padding:30px; overflow:hidden; transition:transform var(--transition), border-color var(--transition), background var(--transition); }
.mode-card::before { content:''; position:absolute; top:0; left:0; width:100%; height:2px; background:linear-gradient(90deg, transparent, rgba(0,229,255,0.5), transparent); }
.mode-card:hover { transform:translateY(-4px); border-color:rgba(0,229,255,0.4); background:rgba(255,255,255,0.07); }
.mode-icon { width:46px; height:46px; border-radius:14px; background:rgba(0,229,255,0.1); border:1px solid rgba(0,229,255,0.2); display:flex; align-items:center; justify-content:center; color:var(--accent-cyan); font-size:20px; margin-bottom:20px; }
.mode-icon.orange-icon { background:rgba(255,107,53,0.1); border-color:rgba(255,107,53,0.25); color:var(--accent-orange); }
.mode-card h3 { color:#fff; font-size:20px; margin-bottom:12px; }
.mode-card > p { color:var(--text-secondary); font-size:15px; line-height:1.7; }
.mode-points { margin:16px 0 20px; }
.mode-points li { position:relative; padding-left:20px; color:var(--text-secondary); font-size:14px; margin-bottom:8px; }
.mode-points li::before { content:''; position:absolute; left:0; top:9px; width:7px; height:7px; border-radius:50%; background:var(--accent-cyan); box-shadow:0 0 8px rgba(0,229,255,0.5); }

.benefit-row { display:grid; grid-template-columns:1fr 1fr; gap:44px; align-items:center; margin-bottom:60px; }
.benefit-row:last-child { margin-bottom:0; }
.benefit-row.reverse .benefit-media { order:2; }
.benefit-media { border-radius:var(--radius-card); overflow:hidden; border:1px solid var(--glass-border); box-shadow:var(--shadow-card); }
.benefit-media img { width:100%; height:100%; object-fit:cover; aspect-ratio:4/3; }
.benefit-content h3 { color:#fff; font-size:24px; margin-bottom:14px; }
.benefit-content p { color:var(--text-secondary); font-size:15px; margin-bottom:16px; line-height:1.75; }
.benefit-list li { position:relative; padding-left:28px; margin-bottom:12px; color:var(--text-primary); font-size:15px; }
.benefit-list li::before { content:'\f00c'; font-family:'Font Awesome 6 Free'; font-weight:900; color:var(--accent-cyan); position:absolute; left:0; top:0; }

.case-grid { display:grid; grid-template-columns:1.1fr 0.9fr; gap:24px; }
.case-column { display:grid; gap:24px; }
.case-card { position:relative; border-radius:var(--radius-card); overflow:hidden; min-height:220px; display:flex; align-items:flex-end; background:var(--bg-secondary); }
.case-card img { position:absolute; inset:0; width:100%; height:100%; object-fit:cover; }
.case-card::after { content:''; position:absolute; inset:0; background:linear-gradient(180deg, rgba(7,11,20,0.1) 0%, rgba(7,11,20,0.45) 55%, rgba(7,11,20,0.88) 100%); }
.case-body { position:relative; z-index:2; padding:28px; }
.case-body .badge { margin-bottom:10px; }
.case-body h3 { color:#fff; font-size:20px; margin-bottom:8px; }
.case-body p { color:rgba(229,234,243,0.82); font-size:14px; line-height:1.65; margin-bottom:14px; max-width:46ch; }
.case-card.primary-case { min-height:440px; }
.case-card.small-case { min-height:208px; }
.case-card.small-case .case-body { padding:22px; }
.case-card.small-case .case-body h3 { font-size:18px; }
.case-card.small-case .case-body p { font-size:13px; margin-bottom:10px; }
.case-link { color:#fff; font-weight:600; font-size:14px; display:inline-flex; align-items:center; gap:6px; transition:gap var(--transition), color var(--transition); }
.case-link:hover { gap:9px; color:var(--accent-cyan); }

.steps-grid { display:grid; grid-template-columns:repeat(4, 1fr); gap:24px; position:relative; }
.steps-grid::before { content:''; position:absolute; top:44px; left:10%; width:80%; height:1px; background:linear-gradient(90deg, transparent, rgba(0,229,255,0.45), transparent); }
.step-item { position:relative; background:var(--glass-bg); border:1px solid var(--glass-border); border-radius:var(--radius-card); padding:28px 22px; transition:transform var(--transition), border-color var(--transition); }
.step-item:hover { transform:translateY(-3px); border-color:rgba(0,229,255,0.3); }
.step-num { width:54px; height:54px; border-radius:50%; background:rgba(0,229,255,0.1); border:1px solid rgba(0,229,255,0.3); color:var(--accent-cyan); font-size:20px; font-weight:800; display:flex; align-items:center; justify-content:center; margin-bottom:18px; box-shadow:0 0 18px rgba(0,229,255,0.15); }
.step-item h3 { color:#fff; font-size:18px; margin-bottom:10px; }
.step-item p { color:var(--text-secondary); font-size:14px; line-height:1.65; }

.faq-box { max-width:880px; margin:0 auto; }
.faq-item { background:var(--glass-bg); border:1px solid var(--glass-border); border-radius:var(--radius-card); margin-bottom:12px; transition:border-color var(--transition), background var(--transition); }
.faq-item[open] { border-color:rgba(0,229,255,0.28); background:rgba(255,255,255,0.06); }
.faq-item summary { display:flex; align-items:center; justify-content:space-between; list-style:none; padding:22px 26px; cursor:pointer; color:#fff; font-size:16px; font-weight:600; transition:color var(--transition); }
.faq-item summary::-webkit-details-marker { display:none; }
.faq-item summary::after { content:'+'; font-size:20px; font-weight:700; color:var(--accent-cyan); transition:transform var(--transition); }
.faq-item[open] summary { color:var(--accent-cyan); }
.faq-item[open] summary::after { content:'−'; }
.faq-item summary:hover { color:var(--accent-cyan); }
.faq-item p { padding:0 26px 22px; color:var(--text-secondary); font-size:15px; line-height:1.7; }

.cta-section { position:relative; padding:clamp(64px, 8vw, 100px) 0; background:url('/assets/images/backpic/back-2.webp') center/cover; }
.cta-section::before { content:''; position:absolute; inset:0; background:rgba(7,11,20,0.82); }
.cta-inner { position:relative; z-index:2; max-width:880px; margin:0 auto; text-align:center; }
.cta-title { color:#fff; font-size:clamp(26px, 4vw, 38px); font-weight:800; line-height:1.3; margin-bottom:14px; }
.cta-lead { color:var(--text-secondary); font-size:16px; margin-bottom:34px; }
.cta-form { display:grid; grid-template-columns:repeat(3, 1fr) 1.1fr; gap:16px; background:rgba(255,255,255,0.045); border:1px solid rgba(255,255,255,0.1); border-radius:var(--radius-card); padding:28px; text-align:left; backdrop-filter:blur(10px); }
.form-label { display:block; font-size:13px; color:var(--text-secondary); margin-bottom:6px; }
.form-input { width:100%; background:rgba(0,0,0,0.3); border:1px solid rgba(255,255,255,0.12); border-radius:10px; padding:12px 14px; color:#fff; outline:none; transition:border-color var(--transition), box-shadow var(--transition); height:46px; }
.form-input:focus { border-color:var(--accent-cyan); box-shadow:0 0 0 3px rgba(0,229,255,0.12); }
.form-input::placeholder { color:var(--text-weak); }
.form-input option { background:#0F1628; color:#fff; }
.cta-form select { appearance:none; background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%2394A3B8' d='M6 8L0 0h12z'/%3E%3C/svg%3E"); background-position:right 14px center; background-repeat:no-repeat; padding-right:38px; cursor:pointer; }
.form-submit { display:flex; align-items:flex-end; }
.cta-form .btn { width:100%; height:46px; }
.cta-note { margin-top:16px; font-size:13px; color:var(--text-weak); }
.cta-note i { margin-right:6px; }

.site-footer { background:var(--bg-deep); border-top:1px solid rgba(255,255,255,0.08); padding-top:60px; }
.footer-container { display:grid; grid-template-columns:2fr 1fr 1fr 1.4fr; gap:40px; padding-bottom:40px; }
.footer-brand { display:flex; align-items:center; gap:10px; color:#fff; font-size:20px; font-weight:800; margin-bottom:14px; }
.footer-brand i { color:var(--accent-cyan); }
.footer-brand-col p { color:var(--text-secondary); font-size:14px; line-height:1.75; max-width:36ch; }
.footer-col h4 { color:#fff; font-size:15px; font-weight:700; margin-bottom:16px; }
.footer-col ul li { margin-bottom:10px; }
.footer-col ul li a { color:var(--text-secondary); font-size:14px; }
.footer-col ul li a:hover { color:var(--accent-cyan); }
.footer-col ul li i { width:20px; color:var(--accent-cyan); margin-right:6px; }
.footer-bottom { border-top:1px solid rgba(255,255,255,0.06); padding:18px 0; }
.footer-bottom .container { display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:8px; color:var(--text-weak); font-size:14px; }
.footer-icp { color:var(--text-weak); font-size:13px; }

@media (max-width: 1024px) {
  .hero-inner { grid-template-columns:1fr; gap:36px; }
  .mode-grid { grid-template-columns:repeat(2, 1fr); }
  .steps-grid { grid-template-columns:repeat(2, 1fr); }
  .steps-grid::before { display:none; }
  .case-grid { grid-template-columns:1fr; }
  .benefit-row { grid-template-columns:1fr; }
  .benefit-row.reverse .benefit-media { order:0; }
  .stat-number { font-size:28px; }
  .cta-form { grid-template-columns:repeat(2, 1fr); }
  .form-submit { align-items:stretch; }
}

@media (max-width: 900px) {
  .footer-container { grid-template-columns:1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-toggle { display:flex; }
  .nav-menu { position:fixed; top:68px; left:0; right:0; background:rgba(7,11,20,0.98); flex-direction:column; align-items:flex-start; padding:24px; gap:18px; transform:translateY(-16px); opacity:0; visibility:hidden; transition:all 220ms ease; box-shadow:0 24px 40px rgba(0,0,0,0.4); backdrop-filter:blur(16px); border-bottom:1px solid rgba(255,255,255,0.08); }
  .nav-menu.open { transform:none; opacity:1; visibility:visible; }
  .nav-list { flex-direction:column; width:100%; gap:6px; }
  .nav-link { display:block; padding:10px 0; font-size:17px; }
  .nav-link.active::after { left:0; width:56px; height:2px; }
  .nav-cta { width:100%; margin-top:6px; }
  .stats-grid { grid-template-columns:repeat(2, 1fr); row-gap:28px; }
  .stat-item + .stat-item::before { display:none; }
  .mode-grid { grid-template-columns:1fr; }
  .steps-grid { grid-template-columns:1fr; gap:16px; }
  .step-item { padding:24px 20px; }
  .cta-form { grid-template-columns:1fr; padding:22px; }
  .hero-panel { padding:22px; }
  .case-card.primary-case { min-height:360px; }
  .case-card.small-case { min-height:200px; }
  .footer-container { grid-template-columns:1fr; gap:32px; }
  .footer-bottom .container { flex-direction:column; text-align:center; }
}

@media (max-width: 520px) {
  .hero-content h1 { font-size:36px; }
  .hero-actions { flex-direction:column; align-items:stretch; }
  .hero-actions .btn { width:100%; }
  .stat-number { font-size:26px; }
  .section-head { margin-bottom:34px; }
  .cta-form { grid-template-columns:1fr; }
  .cta-form .btn { height:48px; }
}