/* roulang page: index */
:root {
  --bg: #070C16;
  --surface: #0E1526;
  --surface-2: #141C31;
  --border: #1F2A44;
  --primary: #A6FF00;
  --secondary: #00D9FF;
  --accent: #FF4D21;
  --text-strong: #F2F6FC;
  --text-body: #B4BFD4;
  --text-muted: #6E7B96;
  --success: #2DD4BF;
  --glow-green: rgba(166,255,0,.45);
  --glow-cyan: rgba(0,217,255,.35);
  --glow-accent: rgba(255,77,33,.4);
  --radius-card: 12px;
  --radius-btn: 8px;
  --radius-tag: 4px;
  --shadow-card: 0 2px 8px rgba(0,0,0,.25);
  --shadow-card-hover: 0 6px 24px rgba(0,0,0,.4);
  --container: 1200px;
  --pad-desktop: 24px;
  --pad-mobile: 16px;
  --transition: all .3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background: var(--bg);
  color: var(--text-body);
  font-size: 15px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a {
  color: var(--secondary);
  text-decoration: none;
  transition: var(--transition);
}

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

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  outline: none;
  border: none;
  background: none;
  color: inherit;
}

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

.section-pad {
  padding-top: 96px;
  padding-bottom: 96px;
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-btn);
  font-weight: 700;
  font-size: 15px;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  line-height: 1.2;
}

.btn-primary {
  background: var(--primary);
  color: #08100A;
  border: 2px solid var(--primary);
}

.btn-primary:hover {
  background: #b8ff33;
  border-color: #b8ff33;
  box-shadow: 0 0 16px var(--glow-green);
  color: #08100A;
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(1px);
  box-shadow: inset 0 2px 6px rgba(0,0,0,.25);
}

.btn-outline {
  background: transparent;
  color: var(--secondary);
  border: 1.5px solid var(--secondary);
}

.btn-outline:hover {
  background: rgba(0,217,255,.08);
  box-shadow: 0 0 12px var(--glow-cyan);
  color: var(--secondary);
  transform: translateY(-1px);
}

.btn-outline:active {
  transform: translateY(1px);
}

/* ===== 头部导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(7,12,22,.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  height: 68px;
}

.site-header::after {
  content: '';
  display: block;
  height: 2px;
  background: linear-gradient(90deg, transparent, #A6FF00, #00D9FF, transparent);
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: baseline;
  font-size: 24px;
  font-weight: 900;
  color: var(--text-strong);
  letter-spacing: 1px;
  line-height: 1;
  flex-shrink: 0;
}

.logo strong {
  color: var(--primary);
  font-weight: 900;
}

.logo .logo-en {
  display: block;
  font-family: 'Rajdhani', sans-serif;
  font-size: 10px;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 3px;
  margin-left: 8px;
  margin-top: -2px;
  text-transform: uppercase;
}

.logo .logo-mark {
  color: var(--secondary);
  margin-left: 2px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
  margin-left: auto;
}

.main-nav .nav-link {
  color: var(--text-body);
  font-size: 15px;
  font-weight: 500;
  padding: 8px 0;
  position: relative;
  transition: var(--transition);
}

.main-nav .nav-link:hover {
  color: var(--text-strong);
  text-shadow: 0 0 8px rgba(0,217,255,.6);
}

.main-nav .nav-link.active {
  color: var(--primary);
  font-weight: 700;
  box-shadow: 0 2px 8px var(--glow-green);
}

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

.nav-cta {
  flex-shrink: 0;
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  color: var(--text-strong);
  font-size: 20px;
  cursor: pointer;
  border: 1px solid var(--border);
  transition: var(--transition);
}

.nav-toggle:hover {
  border-color: var(--primary);
  color: var(--primary);
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 560px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--bg);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  z-index: 0;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7,12,22,.3) 0%, rgba(7,12,22,.85) 100%);
}

.hero-wrap {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 60px;
  align-items: center;
  padding-top: 60px;
  padding-bottom: 60px;
}

.hero-overline {
  font-family: 'Rajdhani', sans-serif;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 5px;
  text-transform: uppercase;
  color: var(--secondary);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.hero-overline::before {
  content: '';
  width: 32px;
  height: 3px;
  background: var(--primary);
  display: inline-block;
  border-radius: 2px;
  box-shadow: 0 0 10px var(--glow-green);
}

.hero h1 {
  font-size: 46px;
  font-weight: 900;
  color: var(--text-strong);
  line-height: 1.25;
  letter-spacing: 1px;
  margin-bottom: 18px;
  position: relative;
  padding-left: 20px;
}

.hero h1::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 3px;
  background: var(--primary);
  border-radius: 3px;
  box-shadow: 0 0 12px var(--glow-green);
}

.hero h1 .highlight {
  color: var(--primary);
}

.hero-sub {
  font-size: 16px;
  color: var(--text-body);
  max-width: 520px;
  line-height: 1.8;
  margin-bottom: 32px;
}

.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-panel {
  position: relative;
}

.hero-panel .stat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.stat-card {
  background: rgba(14,21,38,.85);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 24px 20px;
  backdrop-filter: blur(8px);
  transition: var(--transition);
}

.stat-card:hover {
  border-color: rgba(166,255,0,.4);
  box-shadow: 0 0 18px rgba(166,255,0,.15);
}

.stat-card .stat-num {
  font-family: 'Rajdhani', 'Oswald', sans-serif;
  font-size: 36px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.1;
  display: block;
  letter-spacing: 1px;
}

.stat-card .stat-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 6px;
  display: block;
}

.stat-card.accent .stat-num {
  color: var(--secondary);
}

/* ===== 爆款网格 ===== */
.hot-grid {
  background: var(--bg);
  position: relative;
}

.hot-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 48px;
}

.section-title {
  font-size: 34px;
  font-weight: 700;
  color: var(--text-strong);
  line-height: 1.3;
  position: relative;
  padding-left: 20px;
}

.section-title::before {
  content: '';
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 4px;
  background: var(--primary);
  border-radius: 4px;
  box-shadow: 0 0 10px var(--glow-green);
}

.section-title .sub-en {
  display: block;
  font-family: 'Rajdhani', sans-serif;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 4px;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-top: 4px;
}

.view-all {
  color: var(--secondary);
  font-size: 14px;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
  flex-shrink: 0;
}

.view-all:hover {
  color: var(--primary);
  gap: 10px;
}

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

.product-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: var(--transition);
  position: relative;
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  border-color: rgba(166,255,0,.5);
  box-shadow: var(--shadow-card-hover), 0 0 20px rgba(166,255,0,.12);
  transform: translateY(-4px);
}

.product-card .card-media {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--surface-2);
}

.product-card .card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}

.product-card:hover .card-media img {
  transform: scale(1.03);
}

.product-card .card-badge {
  position: absolute;
  top: 12px;
  left: -32px;
  background: var(--accent);
  color: #FFF;
  font-size: 11px;
  font-weight: 700;
  padding: 4px 36px;
  transform: rotate(-45deg);
  box-shadow: 0 0 12px var(--glow-accent);
  z-index: 2;
  letter-spacing: 1px;
}

.card-cat {
  display: inline-block;
  font-size: 12px;
  font-weight: 500;
  color: var(--secondary);
  background: rgba(0,217,255,.08);
  border: 1px solid rgba(0,217,255,.3);
  border-radius: var(--radius-tag);
  padding: 2px 10px;
  margin: 16px 20px 0;
  align-self: flex-start;
}

.card-cat.hot {
  color: var(--accent);
  border-color: rgba(255,77,33,.4);
  background: rgba(255,77,33,.08);
}

.product-card h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-strong);
  padding: 10px 20px 0;
  line-height: 1.4;
  transition: var(--transition);
}

.product-card:hover h3 {
  color: var(--primary);
}

.product-card p {
  font-size: 14px;
  color: var(--text-body);
  padding: 8px 20px 0;
  line-height: 1.65;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px 20px;
  border-top: 1px solid transparent;
  margin-top: 12px;
}

.card-footer .card-no {
  font-family: 'Rajdhani', sans-serif;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 1px;
}

.card-footer .card-link {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(166,255,0,.1);
  color: var(--primary);
  border: 1px solid rgba(166,255,0,.3);
  transition: var(--transition);
}

.card-footer .card-link:hover {
  background: var(--primary);
  color: #08100A;
  border-color: var(--primary);
  box-shadow: 0 0 16px var(--glow-green);
}

/* ===== 评价轮播 ===== */
.testimonials {
  background: var(--surface);
  position: relative;
}

.testimonials .section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 48px;
}

.testimonial-nav {
  display: flex;
  gap: 12px;
}

.testimonial-nav button {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-body);
  font-size: 16px;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.testimonial-nav button:hover {
  background: rgba(0,217,255,.15);
  border-color: var(--secondary);
  color: var(--secondary);
  box-shadow: 0 0 12px var(--glow-cyan);
}

.testimonial-slider {
  position: relative;
  overflow: hidden;
}

.testimonial-track {
  display: flex;
  gap: 24px;
  transition: transform .5s ease;
}

.testimonial-card {
  flex: 0 0 100%;
  background: var(--surface-2);
  border: 1px solid rgba(0,217,255,.15);
  border-radius: var(--radius-card);
  padding: 36px 40px;
  transition: var(--transition);
}

.testimonial-card .quote-icon {
  font-size: 40px;
  color: var(--primary);
  opacity: .8;
  line-height: 1;
  margin-bottom: 12px;
  font-family: Georgia, serif;
  text-shadow: 0 0 16px var(--glow-green);
}

.testimonial-card blockquote {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-body);
  margin-bottom: 20px;
  padding-left: 16px;
  border-left: 3px solid var(--primary);
}

.testimonial-card .stars {
  color: var(--primary);
  font-size: 13px;
  letter-spacing: 2px;
  margin-bottom: 16px;
}

.testimonial-user {
  display: flex;
  align-items: center;
  gap: 14px;
}

.testimonial-user .avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  color: #08100A;
  font-size: 16px;
  flex-shrink: 0;
}

.testimonial-user .user-name {
  font-weight: 700;
  color: var(--text-strong);
  font-size: 14px;
}

.testimonial-user .user-role {
  font-size: 12px;
  color: var(--text-muted);
}

.testimonial-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 32px;
}

.testimonial-dots .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border);
  cursor: pointer;
  transition: var(--transition);
  border: none;
  padding: 0;
}

.testimonial-dots .dot.active {
  background: var(--primary);
  box-shadow: 0 0 10px var(--glow-green);
  transform: scale(1.3);
}

/* ===== 保障条 ===== */
.guarantee {
  background: var(--bg);
  position: relative;
  padding-top: 72px;
  padding-bottom: 72px;
  border-top: 1px solid rgba(166,255,0,.15);
  border-bottom: 1px solid rgba(0,217,255,.15);
}

.guarantee-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}

.guarantee-item {
  padding: 24px 28px;
  text-align: center;
  position: relative;
  transition: var(--transition);
}

.guarantee-item:not(:last-child)::after {
  content: '';
  position: absolute;
  right: 0;
  top: 20%;
  bottom: 20%;
  width: 1px;
  background: var(--border);
}

.guarantee-item:hover .guarantee-icon {
  transform: translateY(-4px);
  color: var(--primary);
}

.guarantee-icon {
  font-size: 32px;
  color: var(--secondary);
  transition: var(--transition);
  margin-bottom: 14px;
  display: block;
}

.guarantee-item:nth-child(even) .guarantee-icon {
  color: var(--primary);
}

.guarantee-item:nth-child(even) .guarantee-icon:hover {
  color: var(--secondary);
}

.guarantee-item h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-strong);
  margin-bottom: 6px;
}

.guarantee-item p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ===== 最新信息 ===== */
.news-section {
  background: var(--bg);
}

.news-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 40px;
}

.news-item {
  display: flex;
  align-items: stretch;
  gap: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 20px 24px;
  transition: var(--transition);
}

.news-item:hover {
  border-color: rgba(166,255,0,.4);
  box-shadow: 0 4px 20px rgba(0,0,0,.3), 0 0 14px rgba(166,255,0,.08);
  transform: translateX(4px);
}

.news-date {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 72px;
  border-right: 1px solid var(--border);
  padding-right: 24px;
  flex-shrink: 0;
}

.news-date .news-day {
  font-family: 'Rajdhani', sans-serif;
  font-size: 34px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
  text-shadow: 0 0 12px rgba(166,255,0,.3);
}

.news-date .news-month {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
  line-height: 1;
}

.news-body {
  flex: 1;
}

.news-cat {
  display: inline-block;
  font-size: 12px;
  font-weight: 500;
  color: var(--secondary);
  background: rgba(0,217,255,.08);
  border: 1px solid rgba(0,217,255,.25);
  border-radius: var(--radius-tag);
  padding: 2px 10px;
  margin-bottom: 8px;
}

.news-body h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-strong);
  margin-bottom: 6px;
  transition: var(--transition);
  line-height: 1.4;
}

.news-item:hover .news-body h3 {
  color: var(--primary);
}

.news-body p {
  font-size: 14px;
  color: var(--text-body);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 8px;
}

.news-link {
  font-size: 13px;
  color: var(--secondary);
  font-weight: 500;
  transition: var(--transition);
}

.news-item:hover .news-link {
  color: var(--primary);
  letter-spacing: .5px;
}

.news-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--surface);
  border: 1px dashed var(--border);
  border-radius: var(--radius-card);
  padding: 48px;
  text-align: center;
}

.news-empty .news-empty-icon {
  font-size: 42px;
  margin-bottom: 12px;
  filter: grayscale(.3);
}

.news-empty p {
  color: var(--text-muted);
  font-size: 15px;
}

/* ===== FAQ ===== */
.faq-section {
  background: var(--surface);
}

.faq-list {
  max-width: 860px;
  margin: 40px auto 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: rgba(0,217,255,.4);
  box-shadow: 0 0 16px rgba(0,217,255,.08);
}

.faq-item.open {
  border-color: rgba(166,255,0,.4);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-strong);
  transition: var(--transition);
}

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

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

.faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--text-muted);
  flex-shrink: 0;
  transition: all .35s ease;
  font-style: normal;
  font-weight: 400;
  line-height: 1;
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
  color: var(--primary);
  border-color: var(--primary);
  box-shadow: 0 0 10px var(--glow-green);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s ease;
}

.faq-answer-inner {
  padding: 0 24px 20px;
  border-left: 3px solid var(--secondary);
  margin-left: 24px;
  margin-right: 24px;
  margin-bottom: 20px;
  background: var(--surface-2);
  border-radius: 0 8px 8px 0;
  padding: 16px 20px;
  font-size: 14px;
  color: var(--text-body);
  line-height: 1.8;
}

.faq-item.open .faq-answer {
  max-height: 300px;
}

/* ===== 表单 CTA ===== */
.contact-cta {
  background: var(--bg);
  position: relative;
}

.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.contact-info h2 {
  margin-bottom: 24px;
}

.contact-info p {
  font-size: 15px;
  color: var(--text-body);
  margin-bottom: 20px;
  line-height: 1.8;
}

.contact-meta {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 28px;
}

.contact-meta-item {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 14px;
  color: var(--text-body);
}

.contact-meta-item i {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(0,217,255,.08);
  border: 1px solid rgba(0,217,255,.2);
  color: var(--secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  flex-shrink: 0;
  transition: var(--transition);
}

.contact-meta-item:hover i {
  background: rgba(0,217,255,.18);
  box-shadow: 0 0 12px var(--glow-cyan);
}

.contact-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 36px;
  box-shadow: var(--shadow-card);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-strong);
  margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-btn);
  font-size: 14px;
  color: var(--text-strong);
  transition: var(--transition);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
  font-size: 13px;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(166,255,0,.15);
}

.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%236E7B96' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  cursor: pointer;
}

.form-group textarea {
  min-height: 100px;
  resize: vertical;
}

.form-submit {
  width: 100%;
  margin-top: 8px;
}

/* ===== 页脚 ===== */
.site-footer {
  background: #05080F;
  border-top: 1px solid rgba(166,255,0,.25);
  padding-top: 72px;
  position: relative;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, #A6FF00, #00D9FF, transparent);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
}

.footer-brand .footer-logo {
  font-size: 22px;
  font-weight: 900;
  color: var(--text-strong);
  display: flex;
  align-items: baseline;
  margin-bottom: 14px;
}

.footer-brand .footer-logo strong {
  color: var(--primary);
}

.footer-brand p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
  max-width: 260px;
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-strong);
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 8px;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 24px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul a {
  font-size: 14px;
  color: var(--text-body);
}

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

.footer-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text-body);
  margin-bottom: 14px;
}

.footer-contact li i {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  color: var(--secondary);
  transition: var(--transition);
}

.footer-contact li:hover i {
  background: rgba(0,217,255,.15);
  border-color: var(--secondary);
}

.footer-social {
  display: flex;
  gap: 10px;
  margin-top: 16px;
}

.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 14px;
  transition: var(--transition);
}

.footer-social a:hover {
  background: rgba(0,217,255,.15);
  border-color: var(--secondary);
  color: var(--secondary);
  box-shadow: 0 0 10px var(--glow-cyan);
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px 0;
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: var(--text-muted);
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero h1 {
    font-size: 38px;
  }

  .hero-wrap {
    gap: 40px;
  }

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

@media (max-width: 768px) {
  .container {
    padding-left: var(--pad-mobile);
    padding-right: var(--pad-mobile);
  }

  .section-pad {
    padding-top: 56px;
    padding-bottom: 56px;
  }

  .site-header,
  .nav-wrap {
    height: 56px;
  }

  .nav-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .main-nav {
    position: fixed;
    top: 56px;
    left: 0;
    right: 0;
    background: var(--bg);
    flex-direction: column;
    padding: 16px 24px 24px;
    gap: 4px;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 12px 24px rgba(0,0,0,.4);
    transform: translateY(-120%);
    transition: transform .35s ease;
    z-index: 999;
    opacity: 0;
    visibility: hidden;
  }

  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .main-nav .nav-link {
    display: block;
    padding: 14px 12px;
    font-size: 16px;
    border-bottom: 1px solid transparent;
    width: 100%;
  }

  .main-nav .nav-link.active {
    border-left: 3px solid var(--primary);
    padding-left: 15px;
    box-shadow: none;
  }

  .main-nav .nav-link.active::after {
    display: none;
  }

  .nav-cta {
    display: none;
  }

  .hero {
    min-height: auto;
    padding-top: 0;
  }

  .hero-wrap {
    grid-template-columns: 1fr;
    padding-top: 40px;
    padding-bottom: 40px;
    gap: 32px;
  }

  .hero h1 {
    font-size: 28px;
    padding-left: 16px;
  }

  .hero-sub {
    font-size: 14px;
    margin-bottom: 24px;
  }

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

  .hero-panel .stat-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .stat-card {
    padding: 18px 14px;
  }

  .stat-card .stat-num {
    font-size: 28px;
  }

  .hot-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 32px;
  }

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

  .card-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .testimonials .section-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 32px;
  }

  .testimonial-nav {
    align-self: flex-end;
  }

  .testimonial-card {
    padding: 24px 20px;
  }

  .testimonial-card blockquote {
    font-size: 14px;
  }

  .guarantee-grid {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

  .guarantee-item:not(:last-child)::after {
    display: none;
  }

  .guarantee-item {
    padding: 16px;
  }

  .news-item {
    flex-direction: column;
    gap: 12px;
    padding: 16px;
  }

  .news-date {
    flex-direction: row;
    justify-content: flex-start;
    gap: 8px;
    border-right: none;
    border-bottom: 1px solid var(--border);
    padding-right: 0;
    padding-bottom: 8px;
    min-width: 0;
  }

  .news-date .news-day {
    font-size: 24px;
  }

  .news-date .news-month {
    margin-top: 0;
    font-size: 13px;
  }

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

  .contact-form {
    padding: 24px;
  }

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

  .faq-question {
    font-size: 15px;
    padding: 16px;
  }

  .faq-answer-inner {
    margin-left: 16px;
    margin-right: 16px;
    padding: 14px 16px;
  }
}

@media (max-width: 480px) {
  .guarantee-grid {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }

  .guarantee-item {
    padding: 12px;
  }

  .guarantee-icon {
    font-size: 26px;
  }

  .stat-card .stat-num {
    font-size: 24px;
  }

  .contact-form {
    padding: 18px;
  }

  .btn {
    padding: 10px 20px;
    font-size: 14px;
  }

  .news-body h3 {
    font-size: 15px;
  }
}

/* roulang page: category1 */
/* ===== Design Tokens ===== */
:root{
  --bg:#070C16;
  --surface:#0E1526;
  --surface-2:#141C31;
  --border:#1F2A44;
  --primary:#A6FF00;
  --secondary:#00D9FF;
  --accent:#FF4D21;
  --text-strong:#F2F6FC;
  --text-body:#B4BFD4;
  --text-muted:#6E7B96;
  --success:#2DD4BF;
  --glow-green:rgba(166,255,0,.45);
  --glow-cyan:rgba(0,217,255,.35);
  --glow-accent:rgba(255,77,33,.4);
  --radius:12px;
  --radius-sm:8px;
  --radius-tag:4px;
  --shadow:0 2px 8px rgba(0,0,0,.25);
  --shadow-hover:0 6px 24px rgba(0,0,0,.4);
  --font-cn:'Noto Sans SC','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
  --font-num:'Rajdhani','Oswald','DIN Alternate',sans-serif;
  --header-h:68px;
  --container:1200px;
  --space-section:96px;
  --space-section-sm:56px;
}
/* ===== Reset & Base ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--text-body);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .25s,box-shadow .25s,background .25s,border-color .25s}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
input,textarea{font-family:inherit;border:none;outline:none;background:var(--surface-2);color:var(--text-strong);width:100%}
::placeholder{color:var(--text-muted);font-size:13px}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:var(--space-section) 0}
.section-sm{padding:56px 0}
/* ===== Buttons ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 32px;border-radius:var(--radius-sm);font-size:15px;font-weight:700;
  transition:transform .2s,box-shadow .2s,background .2s,color .2s,border-color .2s;
  white-space:nowrap;cursor:pointer;
}
.btn-primary{
  background:var(--primary);color:#08100A;
  box-shadow:0 0 12px rgba(166,255,0,.2);
}
.btn-primary:hover{
  background:#b8ff33;color:#08100A;
  box-shadow:0 0 24px var(--glow-green);
  transform:translateY(-1px);
}
.btn-primary:active{transform:translateY(1px);box-shadow:inset 0 2px 6px rgba(0,0,0,.25)}
.btn-outline{
  border:1.5px solid var(--secondary);color:var(--secondary);background:transparent;
}
.btn-outline:hover{
  background:rgba(0,217,255,.08);box-shadow:0 0 16px rgba(0,217,255,.25);
  transform:translateY(-1px);
}
.btn-outline:active{transform:translateY(1px)}
/* ===== Section Headings ===== */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:48px}
.section-head h2{
  font-size:34px;font-weight:800;color:var(--text-strong);line-height:1.3;
  display:flex;align-items:center;gap:14px;
}
.section-head h2::before{
  content:'';width:4px;height:26px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 12px var(--glow-green);
}
.section-head .sub-link{color:var(--secondary);font-size:15px;font-weight:500;display:inline-flex;align-items:center;gap:6px}
.section-head .sub-link:hover{text-shadow:0 0 12px rgba(0,217,255,.6)}
.section-head .sub-link i{font-size:13px;transition:transform .25s}
.section-head .sub-link:hover i{transform:translateX(4px)}
@media(max-width:768px){
  .section-head{flex-direction:column;align-items:flex-start;margin-bottom:32px}
  .section-head h2{font-size:20px}
}
/* ===== Header / Nav ===== */
.site-header{
  position:sticky;top:0;z-index:100;
  height:var(--header-h);
  background:rgba(7,12,22,.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
}
.site-header::after{
  content:'';display:block;height:2px;width:100%;
  background:linear-gradient(90deg,transparent,#A6FF00,#00D9FF,transparent);
  position:absolute;bottom:-2px;left:0;pointer-events:none;
}
.nav-wrap{
  height:var(--header-h);display:flex;align-items:center;justify-content:space-between;
  gap:24px;position:relative;
}
.logo{
  display:inline-flex;align-items:baseline;gap:0;font-size:24px;font-weight:900;
  color:var(--text-strong);letter-spacing:1px;line-height:1;
}
.logo strong{color:var(--primary);font-weight:900;text-shadow:0 0 14px rgba(166,255,0,.4)}
.logo .logo-mark{color:var(--secondary);font-size:14px;margin:0 2px;animation:pulse 2s infinite}
.logo-en{
  font-family:var(--font-num);font-size:10px;font-weight:600;letter-spacing:2px;
  color:var(--text-muted);margin-left:8px;text-transform:uppercase;
}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.5}}
.main-nav{display:flex;align-items:center;gap:4px}
.nav-link{
  padding:10px 16px;font-size:15px;color:var(--text-body);font-weight:500;
  border-radius:var(--radius-tag);position:relative;transition:color .25s,text-shadow .25s,box-shadow .25s;
}
.nav-link:hover{color:var(--text-strong);text-shadow:0 0 8px rgba(0,217,255,.6)}
.nav-link.active{
  color:var(--primary);font-weight:700;
  box-shadow:inset 0 -2px 0 var(--primary),0 2px 8px var(--glow-green);
  text-shadow:0 0 12px rgba(166,255,0,.3);
}
.nav-cta{padding:10px 22px;font-size:14px;margin-left:8px}
.nav-toggle{display:none;font-size:22px;color:var(--text-strong);width:42px;height:42px;align-items:center;justify-content:center}
@media(max-width:768px){
  :root{--header-h:56px}
  .nav-toggle{display:flex}
  .main-nav{
    position:absolute;top:var(--header-h);left:0;right:0;
    flex-direction:column;align-items:stretch;background:var(--surface);
    border:1px solid var(--border);border-top:none;border-radius:0 0 var(--radius) var(--radius);
    padding:12px;gap:4px;display:none;
  }
  .main-nav.open{display:flex;box-shadow:0 24px 48px rgba(0,0,0,.5)}
  .nav-link{padding:12px 16px;font-size:16px;border-radius:var(--radius-sm)}
  .nav-link.active{box-shadow:inset 3px 0 0 var(--primary);background:rgba(166,255,0,.06)}
  .nav-cta{margin:8px 0 0;justify-content:center}
}
/* ===== Page Banner (H1) ===== */
.page-banner{
  position:relative;min-height:320px;display:flex;align-items:center;
  background-size:cover;background-position:center;
  padding:72px 0 64px;overflow:hidden;
}
.page-banner::before{
  content:'';position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,12,22,.35),rgba(7,12,22,.88));
}
.page-banner::after{
  content:'PAN-ASIA SPORTS';position:absolute;right:-10px;top:20px;
  font-family:var(--font-num);font-size:80px;font-weight:700;letter-spacing:8px;
  color:rgba(255,255,255,.03);line-height:1;pointer-events:none;white-space:nowrap;
}
.page-banner .container{position:relative;z-index:2}
.banner-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--secondary);
  background:rgba(0,217,255,.08);border:1px solid rgba(0,217,255,.25);
  padding:6px 14px;border-radius:100px;margin-bottom:20px;letter-spacing:1px;
}
.page-banner h1{
  font-size:46px;font-weight:900;color:var(--text-strong);line-height:1.2;
  margin-bottom:16px;position:relative;padding-left:18px;
}
.page-banner h1::before{
  content:'';position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 16px var(--glow-green);
}
.banner-desc{font-size:17px;color:var(--text-body);max-width:640px;margin-bottom:32px;line-height:1.8}
.banner-actions{display:flex;gap:16px;flex-wrap:wrap}
@media(max-width:768px){
  .page-banner{min-height:260px;padding:48px 0}
  .page-banner h1{font-size:24px}
  .banner-desc{font-size:14px}
  .banner-actions .btn{width:100%}
}
/* ===== Feature Split Blocks ===== */
.feature-block{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;margin-bottom:72px}
.feature-block:last-child{margin-bottom:0}
.feature-block.reverse .feature-media{order:-1}
.feature-media{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.feature-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10;transition:transform .5s}
.feature-media::after{
  content:'';position:absolute;inset:0;border:1px solid rgba(166,255,0,.2);border-radius:var(--radius);
  pointer-events:none;transition:border-color .4s,box-shadow .4s;
}
.feature-block:hover .feature-media::after{border-color:rgba(166,255,0,.5);box-shadow:0 0 32px var(--glow-green)}
.feature-block:hover .feature-media img{transform:scale(1.03)}
.feature-media .media-badge{
  position:absolute;left:16px;bottom:16px;z-index:2;
  background:rgba(7,12,22,.8);border:1px solid rgba(166,255,0,.4);color:var(--primary);
  font-size:12px;font-weight:700;letter-spacing:1px;padding:4px 12px;border-radius:100px;
  backdrop-filter:blur(6px);
}
.feature-content .feat-tag{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;
  color:var(--secondary);letter-spacing:1px;margin-bottom:12px;
}
.feature-content .feat-tag::before{content:'//';font-family:var(--font-num);font-size:14px;color:var(--primary)}
.feature-content h3{font-size:24px;font-weight:700;color:var(--text-strong);margin-bottom:14px;line-height:1.4}
.feature-content p{font-size:15px;line-height:1.8;margin-bottom:20px}
.feature-list{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:24px}
.feature-list li{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text-body)}
.feature-list li i{color:var(--primary);font-size:14px;text-shadow:0 0 8px rgba(166,255,0,.4)}
@media(max-width:1024px){
  .feature-block{grid-template-columns:1fr;gap:28px;margin-bottom:56px}
  .feature-block.reverse .feature-media{order:0}
}
@media(max-width:480px){
  .feature-content h3{font-size:20px}
  .feature-list{grid-template-columns:1fr}
}
/* ===== Process Timeline ===== */
.process-section{background:var(--surface);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.process-card{
  background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius);
  padding:32px 24px;position:relative;transition:border-color .3s,box-shadow .3s,transform .3s;
}
.process-card:hover{border-color:rgba(166,255,0,.45);box-shadow:var(--shadow-hover);transform:translateY(-4px)}
.process-num{
  font-family:var(--font-num);font-size:48px;font-weight:700;line-height:1;
  color:rgba(166,255,0,.18);display:block;margin-bottom:18px;
}
.process-card h3{font-size:17px;font-weight:700;color:var(--text-strong);margin-bottom:10px;padding-left:14px;position:relative}
.process-card h3::before{
  content:'';position:absolute;left:0;top:2px;bottom:2px;width:3px;border-radius:2px;
  background:var(--secondary);box-shadow:0 0 8px var(--glow-cyan);
}
.process-card p{font-size:14px;line-height:1.7;color:var(--text-body)}
.process-card .step-tag{
  display:inline-block;margin-top:14px;font-size:12px;font-weight:600;color:var(--text-muted);
  background:rgba(0,217,255,.06);border:1px solid rgba(0,217,255,.15);
  padding:2px 10px;border-radius:100px;letter-spacing:1px;
}
@media(max-width:1024px){
  .process-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:480px){
  .process-grid{grid-template-columns:1fr}
}
/* ===== Scenario Grid ===== */
.scenario-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.scenario-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:28px;position:relative;overflow:hidden;transition:border-color .3s,box-shadow .3s,transform .3s;
}
.scenario-card::before{
  content:'';position:absolute;top:0;left:0;width:100%;height:3px;
  background:linear-gradient(90deg,var(--primary),var(--secondary));opacity:0;transition:opacity .3s;
}
.scenario-card:hover{border-color:rgba(0,217,255,.35);box-shadow:var(--shadow-hover);transform:translateY(-4px)}
.scenario-card:hover::before{opacity:1}
.scenario-icon{
  width:48px;height:48px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  font-size:20px;margin-bottom:18px;color:var(--primary);
  background:rgba(166,255,0,.08);border:1px solid rgba(166,255,0,.2);
  box-shadow:0 0 16px rgba(166,255,0,.06);
}
.scenario-card h3{font-size:18px;font-weight:700;color:var(--text-strong);margin-bottom:8px}
.scenario-card p{font-size:14px;line-height:1.7;color:var(--text-body)}
@media(max-width:1024px){
  .scenario-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:480px){
  .scenario-grid{grid-template-columns:1fr}
}
/* ===== Stats Strip ===== */
.stats-strip{
  background:var(--bg);border-top:1px solid var(--border);border-bottom:1px solid var(--border);
  position:relative;
}
.stats-strip::before,.stats-strip::after{
  content:'';display:block;height:1px;width:100%;
  background:linear-gradient(90deg,transparent,rgba(166,255,0,.6),rgba(0,217,255,.5),transparent);
}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:56px 0}
.stat-item{text-align:center;padding:12px}
.stat-item .stat-num{
  font-family:var(--font-num);font-size:54px;font-weight:700;color:var(--primary);
  line-height:1;text-shadow:0 0 24px rgba(166,255,0,.25);font-variant-numeric:tabular-nums;
  display:block;margin-bottom:8px;
}
.stat-item .stat-label{font-size:14px;color:var(--text-muted);letter-spacing:1px}
@media(max-width:768px){
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:16px;padding:40px 0}
  .stat-item .stat-num{font-size:36px}
}
/* ===== FAQ ===== */
.faq-list{max-width:820px;margin:0 auto}
.faq-item{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  margin-bottom:16px;overflow:hidden;transition:border-color .3s,box-shadow .3s;
}
.faq-item:hover{border-color:rgba(0,217,255,.25);box-shadow:0 0 16px rgba(0,217,255,.06)}
.faq-item.open{border-color:rgba(166,255,0,.4);box-shadow:0 0 24px rgba(166,255,0,.06)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 28px;font-size:16px;font-weight:600;color:var(--text-strong);
  text-align:left;transition:color .3s;
}
.faq-item.open .faq-q{color:var(--primary)}
.faq-icon{
  width:24px;height:24px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-size:16px;color:var(--secondary);background:rgba(0,217,255,.08);
  transition:transform .3s,color .3s,background .3s;flex-shrink:0;
}
.faq-item.open .faq-icon{transform:rotate(45deg);color:#08100A;background:var(--primary)}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .35s ease;
}
.faq-a-inner{
  padding:0 28px 22px;border-left:3px solid var(--secondary);margin-left:28px;
  background:var(--surface-2);border-radius:0 var(--radius-sm) var(--radius-sm) 0;
}
.faq-a-inner p{font-size:14px;line-height:1.8;color:var(--text-body);padding:16px 0 4px}
@media(max-width:480px){
  .faq-q{padding:18px 16px;font-size:15px}
  .faq-a-inner{padding:0 16px 16px;margin-left:16px}
}
/* ===== CTA / Contact ===== */
.cta-section{
  background:linear-gradient(180deg,var(--bg) 0%,var(--surface) 50%,var(--bg) 100%);
  border-top:1px solid var(--border);
}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.cta-info h2{
  font-size:34px;font-weight:800;color:var(--text-strong);margin-bottom:14px;
  display:flex;align-items:center;gap:14px;
}
.cta-info h2::before{
  content:'';width:4px;height:26px;border-radius:2px;background:var(--primary);
  box-shadow:0 0 12px var(--glow-green);
}
.cta-info p{font-size:15px;line-height:1.8;color:var(--text-body);margin-bottom:24px}
.cta-meta{display:flex;flex-direction:column;gap:14px;margin-top:28px}
.cta-meta li{display:flex;align-items:center;gap:12px;font-size:15px;color:var(--text-body)}
.cta-meta li i{
  width:38px;height:38px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-size:15px;color:var(--secondary);background:rgba(0,217,255,.08);
  border:1px solid rgba(0,217,255,.2);
}
.contact-form{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:36px;box-shadow:var(--shadow);
}
.contact-form h3{font-size:20px;font-weight:700;color:var(--text-strong);margin-bottom:6px}
.contact-form .form-sub{font-size:13px;color:var(--text-muted);margin-bottom:24px}
.form-group{margin-bottom:18px}
.form-group label{display:block;font-size:13px;font-weight:600;color:var(--text-strong);margin-bottom:6px}
.form-control{
  background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius-sm);
  padding:12px 16px;font-size:15px;transition:border-color .25s,box-shadow .25s;
}
.form-control:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(166,255,0,.15)}
textarea.form-control{min-height:110px;resize:vertical}
.contact-form .btn{width:100%;margin-top:6px}
@media(max-width:1024px){
  .cta-grid{grid-template-columns:1fr;gap:40px}
}
@media(max-width:480px){
  .contact-form{padding:24px 20px}
  .cta-info h2{font-size:20px}
}
/* ===== Footer ===== */
.site-footer{background:#05080F;border-top:1px solid var(--border);position:relative}
.site-footer::before{
  content:'';display:block;height:2px;width:100%;
  background:linear-gradient(90deg,transparent,rgba(166,255,0,.7),rgba(0,217,255,.5),transparent);
  position:absolute;top:-2px;left:0;
}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:48px;padding:64px 0 48px}
.footer-logo{font-size:24px;font-weight:900;color:var(--text-strong);margin-bottom:16px}
.footer-logo strong{color:var(--primary)}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--text-muted);margin-bottom:20px}
.footer-social{display:flex;gap:12px}
.footer-social a{
  width:38px;height:38px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  border:1px solid var(--border);color:var(--text-muted);font-size:15px;
  transition:color .3s,border-color .3s,background .3s,box-shadow .3s;
}
.footer-social a:hover{color:var(--secondary);border-color:rgba(0,217,255,.4);background:rgba(0,217,255,.12);box-shadow:0 0 16px rgba(0,217,255,.2)}
.footer-col h4{font-size:15px;font-weight:700;color:var(--text-strong);margin-bottom:18px;letter-spacing:1px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{font-size:14px;color:var(--text-muted);transition:color .3s,transform .3s}
.footer-col ul a:hover{color:var(--primary);transform:translateX(3px);box-shadow:0 1px 0 var(--primary)}
.footer-contact li{
  display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text-muted);margin-bottom:12px;
}
.footer-contact li i{color:var(--secondary);font-size:14px;width:16px;text-align:center}
.footer-bottom{
  border-top:1px solid var(--border);padding:22px 0;text-align:center;
}
.footer-bottom p{font-size:13px;color:var(--text-muted)}
@media(max-width:768px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 32px}
}
@media(max-width:480px){
  .footer-grid{grid-template-columns:1fr}
}

/* roulang page: article */
:root{
--bg:#070C16;--surface:#0E1526;--surface-2:#141C31;--border:#1F2A44;
--primary:#A6FF00;--secondary:#00D9FF;--accent:#FF4D21;
--text-strong:#F2F6FC;--text-body:#B4BFD4;--text-muted:#6E7B96;--success:#2DD4BF;
--glow-green:rgba(166,255,0,.45);--glow-cyan:rgba(0,217,255,.35);--glow-accent:rgba(255,77,33,.4);
--radius:12px;--radius-sm:8px;--radius-tag:4px;
--shadow:0 2px 8px rgba(0,0,0,.25);--shadow-lg:0 6px 24px rgba(0,0,0,.4);
--container:1200px;--header-h:68px;
--font-cn:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
--font-en:'Rajdhani','Oswald','Arial Narrow',sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text-body);font-family:var(--font-cn);font-size:15px;line-height:1.75;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none;transition:all .2s ease}
img{max-width:100%;display:block;border:0}
button,input,textarea,select{font-family:inherit;font-size:inherit;outline:none;border:none;background:none}
ul,ol{list-style:none}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}
@media(max-width:768px){.container{padding:0 16px}}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 28px;border-radius:var(--radius-sm);font-weight:700;font-size:15px;line-height:1.2;cursor:pointer;transition:all .25s ease;white-space:nowrap}
.btn-primary{background:var(--primary);color:#08100A;box-shadow:0 0 0 rgba(166,255,0,0)}
.btn-primary:hover{box-shadow:0 0 16px var(--glow-green);filter:brightness(1.05);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px);box-shadow:inset 0 2px 6px rgba(0,0,0,.25)}
.btn-secondary{border:1.5px solid var(--secondary);color:var(--secondary);background:transparent}
.btn-secondary:hover{background:rgba(0,217,255,.08);box-shadow:0 0 12px var(--glow-cyan);transform:translateY(-1px)}
.btn-secondary:active{transform:translateY(1px)}
.btn-lg{padding:15px 38px;font-size:16px}
.badge{display:inline-flex;align-items:center;padding:4px 12px;border-radius:var(--radius-tag);font-size:12px;font-weight:700;letter-spacing:.3px}
.badge-cyan{background:rgba(0,217,255,.1);color:var(--secondary);border:1px solid rgba(0,217,255,.35)}
.badge-green{background:rgba(166,255,0,.1);color:var(--primary);border:1px solid rgba(166,255,0,.3)}
.badge-accent{background:rgba(255,77,33,.12);color:var(--accent);border:1px solid rgba(255,77,33,.35)}
.tag{display:inline-flex;align-items:center;padding:5px 14px;border-radius:20px;font-size:12px;font-weight:500;color:var(--text-body);background:var(--surface-2);border:1px solid var(--border);transition:all .2s ease}
.tag:hover{color:var(--secondary);border-color:rgba(0,217,255,.5);box-shadow:0 0 8px var(--glow-cyan)}
.site-header{position:sticky;top:0;z-index:100;height:var(--header-h);background:rgba(7,12,22,.92);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border);position:relative}
.site-header::after{content:'';position:absolute;left:0;right:0;bottom:-1px;height:2px;background:linear-gradient(90deg,transparent,#A6FF00,#00D9FF,transparent);pointer-events:none}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:var(--header-h);gap:24px}
.logo{display:flex;align-items:baseline;gap:2px;font-size:22px;font-weight:900;color:var(--text-strong);letter-spacing:.5px;flex-shrink:0}
.logo strong{color:var(--primary);font-weight:900}
.logo .logo-mark{color:var(--secondary);font-size:14px;margin-left:2px}
.logo-en{display:block;font-family:var(--font-en);font-size:10px;letter-spacing:2.5px;color:var(--text-muted);text-transform:uppercase;margin-left:6px;font-weight:600}
.main-nav{display:flex;align-items:center;gap:32px;margin-left:auto}
.nav-link{font-size:15px;font-weight:500;color:var(--text-body);position:relative;padding:6px 2px;letter-spacing:.3px}
.nav-link:hover{color:var(--text-strong);text-shadow:0 0 8px rgba(0,217,255,.6)}
.nav-link.active{color:var(--primary);font-weight:700;box-shadow:0 2px 8px var(--glow-green)}
.nav-link.active::after{content:'';position:absolute;left:50%;bottom:-2px;transform:translateX(-50%);width:100%;height:2px;background:var(--primary);border-radius:2px;box-shadow:0 0 8px var(--glow-green)}
.nav-cta{margin-left:8px;padding:10px 22px;font-size:14px}
.nav-toggle{display:none;width:42px;height:42px;border-radius:8px;color:var(--text-strong);font-size:20px;cursor:pointer;align-items:center;justify-content:center;border:1px solid var(--border);transition:all .2s ease}
.nav-toggle:hover{border-color:var(--secondary);color:var(--secondary)}
@media(max-width:768px){
.site-header{--header-h:56px}
.logo{font-size:19px}
.logo-en{display:none}
.main-nav{position:fixed;top:56px;left:0;right:0;background:rgba(7,12,22,.98);flex-direction:column;align-items:stretch;padding:12px 16px 20px;gap:4px;border-bottom:1px solid var(--border);box-shadow:0 16px 40px rgba(0,0,0,.5);transform:translateY(-120%);opacity:0;pointer-events:none;transition:all .3s ease;z-index:99}
.main-nav.open{transform:translateY(0);opacity:1;pointer-events:auto}
.nav-link{padding:13px 12px;border-radius:8px;font-size:16px;border-left:3px solid transparent}
.nav-link.actives{color:var(--primary);background:rgba(166,255,0,.06);border-left-color:var(--primary)}
.nav-link:hover{background:rgba(0,217,255,.06)}
.nav-cta{margin:12px 0 0;width:100%;justify-content:center}
.nav-toggle{display:flex}
}
.page-banner{position:relative;padding:44px 0 38px;background:linear-gradient(180deg,rgba(7,12,22,.82),rgba(7,12,22,.96)),url('/assets/images/backpic/back-1.png') center/cover no-repeat;border-bottom:1px solid var(--border)}
.page-banner::after{content:'';position:absolute;left:0;right:0;bottom:-1px;height:2px;background:linear-gradient(90deg,transparent,#A6FF00,#00D9FF,transparent)}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--text-muted);margin-bottom:24px}
.breadcrumb a{color:var(--text-body)}
.breadcrumb a:hover{color:var(--secondary)}
.breadcrumb .sep{color:var(--text-muted);opacity:.5}
.breadcrumb .current{color:var(--text-muted);max-width:260px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-head{max-width:900px}
.article-head h1{font-size:42px;line-height:1.3;font-weight:900;color:var(--text-strong);margin:14px 0 16px;letter-spacing:.5px;position:relative;padding-left:18px}
.article-head h1::before{content:'';position:absolute;left:0;top:8px;bottom:8px;width:3px;background:var(--primary);border-radius:3px;box-shadow:0 0 10px var(--glow-green)}
.article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:18px;font-size:13px;color:var(--text-muted)}
.meta-item{display:inline-flex;align-items:center;gap:6px}
.meta-item i{color:var(--secondary);font-size:14px}
.article-meta .sep{width:1px;height:14px;background:var(--border)}
@media(max-width:768px){
.page-banner{padding:32px 0 28px}
.article-head h1{font-size:26px;padding-left:14px}
.article-head h1::before{top:4px;bottom:4px}
.article-meta{gap:12px;row-gap:8px}
.article-meta .sep{display:none}
}
.main-article{padding:52px 0 72px}
.article-body{max-width:760px;margin:0 auto;color:var(--text-body);font-size:16px;line-height:1.8}
.article-body p{margin-bottom:1.2em}
.article-body h2,.article-body h3{color:var(--text-strong);font-weight:700;margin:1.6em 0 .7em;line-height:1.45}
.article-body h3{font-size:20px;padding-left:14px;position:relative}
.article-body h3::before{content:'';position:absolute;left:0;top:.35em;bottom:.35em;width:4px;background:var(--secondary);border-radius:2px;box-shadow:0 0 8px var(--glow-cyan)}
.article-body img{border-radius:var(--radius);margin:1.6em auto;width:100%;height:auto}
.article-body a{color:var(--secondary);border-bottom:1px solid rgba(0,217,255,.4)}
.article-body a:hover{text-shadow:0 0 8px var(--glow-cyan)}
.article-body blockquote{border-left:3px solid var(--primary);background:var(--surface);padding:16px 22px;border-radius:0 var(--radius) var(--radius) 0;margin:1.4em 0;color:var(--text-body);font-size:15px}
.article-body ul,.article-body ol{padding-left:22px;margin-bottom:1.2em}
.article-body ul li{list-style:disc;margin-bottom:.45em}
.article-body ol li{list-style:decimal;margin-bottom:.45em}
.article-body table{width:100%;border-collapse:collapse;margin:1.5em 0;background:var(--surface);border-radius:8px;overflow:hidden}
.article-body table th,.article-body table td{padding:12px 16px;border-bottom:1px solid var(--border);text-align:left;font-size:14px}
.article-body table th{background:var(--surface-2);color:var(--text-strong);font-weight:700}
.article-body table td{font-variant-numeric:tabular-nums}
@media(max-width:768px){
.article-body{font-size:15px}
.article-body h3{font-size:18px}
}
.article-empty{text-align:center;padding:72px 24px;background:var(--surface);border-radius:var(--radius);border:1px solid var(--border)}
.article-empty i{font-size:48px;color:var(--text-muted);margin-bottom:16px;display:block}
.article-empty p{font-size:18px;color:var(--text-strong);margin-bottom:8px}
.article-empty p.muted{font-size:14px;color:var(--text-muted);margin-bottom:24px}
.article-footer{max-width:760px;margin:36px auto 0;padding-top:28px;border-top:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:20px}
.article-tags{display:flex;flex-wrap:wrap;gap:10px}
.article-share{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text-muted)}
.share-btn{width:38px;height:38px;border-radius:50%;border:1px solid var(--border);display:inline-flex;align-items:center;justify-content:center;color:var(--text-body);font-size:15px;cursor:pointer;transition:all .2s ease;background:var(--surface)}
.share-btn:hover{color:var(--secondary);border-color:var(--secondary);box-shadow:0 0 10px var(--glow-cyan);background:rgba(0,217,255,.06)}
.related-section{max-width:960px;margin:56px auto 0}
.section-head{display:flex;align-items:center;gap:12px;margin-bottom:28px}
.section-head h2{font-size:30px;font-weight:700;color:var(--text-strong);position:relative;padding-left:16px;line-height:1.4}
.section-head h2::before{content:'';position:absolute;left:0;top:.2em;bottom:.2em;width:4px;background:var(--primary);border-radius:2px;box-shadow:0 0 8px var(--glow-green)}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.related-card{display:block;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:all .3s ease;box-shadow:var(--shadow)}
.related-card:hover{transform:translateY(-4px);border-color:rgba(166,255,0,.5);box-shadow:var(--shadow-lg),0 0 20px var(--glow-green)}
.related-card .card-img{width:100%;aspect-ratio:16/9;overflow:hidden;position:relative}
.related-card .card-img img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.related-card:hover .card-img img{transform:scale(1.04)}
.related-card .card-body{padding:20px}
.related-card .badge{margin-bottom:10px}
.related-card h3{font-size:17px;font-weight:700;color:var(--text-strong);line-height:1.45;margin-bottom:8px;transition:color .2s ease}
.related-card:hover h3{color:var(--primary)}
.related-card p{font-size:13px;color:var(--text-muted);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
@media(max-width:1024px){.related-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){
.section-head h2{font-size:22px}
.related-grid{grid-template-columns:1fr}
.article-footer{flex-direction:column;align-items:flex-start}
}
.article-back{max-width:760px;margin:40px auto 0;text-align:center}
.site-footer{background:#05080F;border-top:2px solid transparent;border-image:linear-gradient(90deg,transparent,#A6FF00,#00D9FF,transparent) 1;padding:60px 0 0;margin-top:32px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:36px}
.footer-logo{font-size:20px;font-weight:900;color:var(--text-strong);margin-bottom:14px}
.footer-logo strong{color:var(--primary)}
.footer-brand p{font-size:14px;color:var(--text-muted);line-height:1.7;max-width:300px}
.footer-social{display:flex;gap:10px;margin-top:18px}
.footer-social a{width:38px;height:38px;border-radius:50%;border:1px solid var(--border);display:flex;align-items:center;justify-content:center;color:var(--text-muted);font-size:15px;transition:all .2s ease}
.footer-social a:hover{color:var(--primary);border-color:var(--primary);background:rgba(166,255,0,.06);box-shadow:0 0 10px var(--glow-green)}
.footer-col h4{font-size:15px;font-weight:700;color:var(--text-strong);margin-bottom:16px;position:relative;padding-bottom:8px}
.footer-col h4::after{content:'';position:absolute;left:0;bottom:0;width:24px;height:2px;background:var(--primary);box-shadow:0 0 6px var(--glow-green)}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{font-size:14px;color:var(--text-body);transition:all .2s ease}
.footer-col ul li a:hover{color:var(--primary);padding-left:2px}
.footer-contact li{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text-body);margin-bottom:12px}
.footer-contact i{color:var(--secondary);width:16px;text-align:center}
.footer-bottom{border-top:1px solid var(--border);padding:20px 0;text-align:center}
.footer-bottom p{font-size:13px;color:var(--text-muted)}
@media(max-width:1024px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px}}
@media(max-width:768px){.footer-grid{grid-template-columns:1fr 1fr;gap:28px}}
@media(max-width:480px){.footer-grid{grid-template-columns:1fr;gap:24px}.footer-brand p{max-width:100%}}