/* roulang page: index */
:root {
  --primary: #1B6BFF;
  --primary-dark: #0E3A8C;
  --bg-dark: #060D18;
  --bg-secondary: #0B1524;
  --bg-hover: #101D30;
  --accent-cyan: #29E6FF;
  --accent-orange: #FF7A1A;
  --text-main: #E6EDF6;
  --text-secondary: #93A5BC;
  --text-muted: #5C7189;
  --success: #2EE6A8;
  --warning: #FFC542;
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 8px;
  --radius-pill: 999px;
  --shadow-regular: 0 8px 30px rgba(0,0,0,0.35);
  --shadow-hover: 0 20px 50px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.06);
  --glow-primary: 0 0 22px rgba(27,107,255,0.45);
  --glow-orange: 0 0 24px rgba(255,122,26,0.5);
  --transition: 0.2s ease;
  --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-number: "Inter", "DIN Alternate", sans-serif;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-main);
  background: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body.foundation-fix {
  line-height: 1.7;
}

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

a:hover {
  color: #fff;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: 12px;
}

ul, ol {
  list-style: none;
}

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

input {
  font-family: inherit;
}

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

.section-padding {
  padding: 96px 0;
}

@media (max-width: 640px) {
  .container {
    padding: 0 16px;
  }
  .section-padding {
    padding: 56px 0;
  }
}

/* ============ 导航面板 ============ */
.main-nav {
  position: sticky;
  top: 16px;
  z-index: 1000;
  padding: 0 24px;
  margin-top: 16px;
}

.nav-panel {
  max-width: 1200px;
  margin: 0 auto;
  background: rgba(13, 23, 38, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: var(--radius-lg);
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow-regular), inset 0 1px 0 rgba(255,255,255,0.12);
  gap: 20px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.logo-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 20px;
  font-weight: 800;
  box-shadow: 0 0 18px rgba(27,107,255,0.4);
  flex-shrink: 0;
}

.logo-text {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-main);
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  justify-content: center;
  flex-wrap: wrap;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 10px;
  background: rgba(255,255,255,0.04);
  border: 1px solid transparent;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  transition: all var(--transition);
}

.nav-link i {
  font-size: 14px;
  color: var(--primary);
}

.nav-link:hover {
  background: rgba(43,107,255,0.18);
  color: #fff;
  border-color: rgba(41,230,255,0.2);
}

.nav-link.active {
  background: rgba(43,107,255,0.22);
  color: #fff;
  border-color: rgba(41,230,255,0.3);
  box-shadow: 0 0 14px rgba(27,107,255,0.2);
}

.nav-link.active i {
  color: var(--accent-cyan);
}

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

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-orange);
  color: #0B1524;
  font-weight: 700;
  font-size: 15px;
  padding: 12px 26px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  border: none;
  cursor: pointer;
  line-height: 1.4;
}

.btn-primary:hover {
  background: #FF9A3D;
  box-shadow: var(--glow-orange);
  color: #0B1524;
  transform: translateY(-1px);
}

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

.btn-primary:focus-visible,
.btn-secondary:focus-visible,
.btn-text:focus-visible {
  outline: 2px solid var(--accent-cyan);
  outline-offset: 2px;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.14);
  color: #fff;
  font-weight: 500;
  font-size: 15px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  cursor: pointer;
  line-height: 1.4;
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.12);
  border-color: rgba(255,255,255,0.25);
  color: #fff;
  box-shadow: 0 4px 16px rgba(0,0,0,0.3);
}

.btn-text {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: none;
  color: var(--accent-cyan);
  font-size: 14px;
  font-weight: 500;
  padding: 6px 4px;
  cursor: pointer;
  transition: all var(--transition);
  line-height: 1.4;
}

.btn-text:hover {
  color: #fff;
}

.btn-text:hover i {
  transform: translateX(4px);
}

.btn-text i {
  transition: transform var(--transition);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  flex-direction: column;
  gap: 5px;
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text-main);
  border-radius: 2px;
  transition: all var(--transition);
}

/* ============ Hero ============ */
.hero {
  position: relative;
  min-height: 620px;
  display: flex;
  align-items: center;
  background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  margin-top: -16px;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(6,13,24,0.92) 0%, rgba(6,13,24,0.72) 50%, rgba(6,13,24,0.55) 100%);
}

.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 120px;
  background: linear-gradient(180deg, transparent 0%, var(--bg-dark) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 680px;
  padding: 140px 0 100px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(41,230,255,0.12);
  border: 1px solid rgba(41,230,255,0.3);
  border-radius: var(--radius-pill);
  padding: 5px 14px;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent-cyan);
  margin-bottom: 24px;
  letter-spacing: 0.04em;
}

.live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: 0 0 8px var(--accent-cyan);
  animation: pulse 1.5s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

.hero h1 {
  font-size: 52px;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: #fff;
  margin-bottom: 20px;
}

.hero-subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 520px;
  margin-bottom: 36px;
}

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

.hero-meta {
  display: flex;
  gap: 24px;
  margin-top: 40px;
  flex-wrap: wrap;
}

.hero-meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
}

.hero-meta-item i {
  color: var(--accent-cyan);
  font-size: 15px;
}

/* ============ 玻璃卡片通用 ============ */
.glass-card {
  background: rgba(255,255,255,0.05);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-regular), inset 0 1px 0 rgba(255,255,255,0.12);
  transition: all var(--transition);
}

.glass-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(255,255,255,0.18);
}

/* ============ 直播封面区 ============ */
.live-cover-section {
  padding: 96px 0 64px;
}

.live-card {
  display: flex;
  gap: 36px;
  padding: 28px;
  overflow: hidden;
}

.live-card-media {
  flex: 0 0 55%;
  border-radius: 12px;
  overflow: hidden;
  position: relative;
}

.live-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 300px;
}

.live-card-media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(0,0,0,0.4) 100%);
}

.live-card-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 20px 10px;
}

.live-card-info .badge {
  align-self: flex-start;
  margin-bottom: 16px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(41,230,255,0.12);
  border: 1px solid rgba(41,230,255,0.3);
  color: var(--accent-cyan);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  letter-spacing: 0.03em;
}

.badge-orange {
  background: rgba(255,122,26,0.12);
  border: 1px solid rgba(255,122,26,0.3);
  color: var(--accent-orange);
}

.live-card-info h2 {
  font-size: 30px;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 14px;
  color: #fff;
}

.live-card-info p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 24px;
}

/* ============ 倒计时区 ============ */
.countdown-section {
  padding: 64px 0;
}

.countdown-panel {
  background: linear-gradient(135deg, rgba(11,21,36,0.95), rgba(6,13,24,0.98));
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
  padding: 44px 36px;
  text-align: center;
  box-shadow: var(--shadow-regular), inset 0 1px 0 rgba(255,255,255,0.06);
}

.countdown-panel h3 {
  font-size: 26px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 30px;
}

.countdown-grid {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 20px;
}

.countdown-box {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: var(--radius-md);
  padding: 16px 12px;
  min-width: 90px;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.06);
}

.count-num {
  font-family: var(--font-number);
  font-size: 52px;
  font-weight: 800;
  color: var(--accent-cyan);
  text-shadow: 0 0 24px rgba(41,230,255,0.4);
  display: block;
  line-height: 1.1;
}

.count-label {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 4px;
  display: block;
}

.count-colon {
  font-family: var(--font-number);
  font-size: 40px;
  font-weight: 800;
  color: var(--accent-cyan);
  animation: breathe 1.2s ease-in-out infinite;
  line-height: 1;
}

@keyframes breathe {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.countdown-note {
  font-size: 13px;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

/* ============ 看点列表区 ============ */
.highlights-section {
  padding: 64px 0;
}

.section-header {
  margin-bottom: 40px;
}

.section-header h2 {
  font-size: 34px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.section-header p {
  font-size: 15px;
  color: var(--text-secondary);
  max-width: 560px;
}

.highlight-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.highlight-item {
  display: flex;
  align-items: center;
  gap: 24px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  transition: all var(--transition);
}

.highlight-item:hover {
  background: rgba(255,255,255,0.07);
  border-color: rgba(41,230,255,0.2);
  transform: translateX(4px);
}

.highlight-num {
  font-family: var(--font-number);
  font-size: 28px;
  font-weight: 800;
  color: var(--primary);
  flex-shrink: 0;
  min-width: 48px;
  text-shadow: 0 0 16px rgba(27,107,255,0.4);
}

.highlight-item:nth-child(odd) .highlight-num {
  color: var(--accent-cyan);
  text-shadow: 0 0 16px rgba(41,230,255,0.3);
}

.highlight-content {
  flex: 1;
}

.highlight-content h3 {
  font-size: 17px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 4px;
}

.highlight-content p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.highlight-item .btn-text {
  flex-shrink: 0;
}

/* ============ 订阅区 ============ */
.subscribe-section {
  padding: 64px 0;
}

.subscribe-card {
  display: flex;
  align-items: center;
  gap: 32px;
  padding: 36px;
  flex-wrap: wrap;
}

.subscribe-text {
  flex: 1;
  min-width: 240px;
}

.subscribe-text h3 {
  font-size: 24px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 6px;
}

.subscribe-text p {
  font-size: 14px;
  color: var(--text-secondary);
}

.subscribe-form {
  display: flex;
  gap: 0;
  flex: 1;
  min-width: 280px;
  max-width: 480px;
}

.subscribe-form input {
  flex: 1;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
  padding: 14px 16px;
  font-size: 15px;
  color: var(--text-main);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.subscribe-form input::placeholder {
  color: var(--text-muted);
}

.subscribe-form input:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px rgba(41,230,255,0.12);
}

.subscribe-form .btn-primary {
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  flex-shrink: 0;
}

.subscribe-note {
  width: 100%;
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.subscribe-note.success {
  color: var(--success);
}

.subscribe-note i {
  font-size: 14px;
}

/* ============ 回放/入口区 ============ */
.entry-section {
  padding: 64px 0;
}

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

.entry-card {
  padding: 20px;
  display: flex;
  flex-direction: column;
}

.entry-card .card-img {
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 20px;
  position: relative;
}

.entry-card .card-img img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  transition: transform var(--transition);
}

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

.entry-card .card-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(6,13,24,0.6) 100%);
}

.entry-card h3 {
  font-size: 20px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 8px;
}

.entry-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 18px;
  flex: 1;
}

.entry-card .link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent-cyan);
  font-size: 14px;
  font-weight: 500;
}

.entry-card .link-arrow:hover {
  color: #fff;
}

.entry-card .link-arrow i {
  transition: transform var(--transition);
}

.entry-card .link-arrow:hover i {
  transform: translateX(4px);
}

/* ============ 最新动态 CMS ============ */
.news-section {
  padding: 64px 0;
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.news-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: all var(--transition);
}

.news-card:hover {
  background: rgba(255,255,255,0.07);
  border-color: rgba(41,230,255,0.2);
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(0,0,0,0.3);
}

.news-card .badge {
  margin-bottom: 12px;
}

.news-title {
  font-size: 17px;
  font-weight: 600;
  color: #fff;
  line-height: 1.5;
  display: block;
  margin-bottom: 8px;
  transition: color var(--transition);
}

.news-title:hover {
  color: var(--accent-cyan);
}

.news-summary {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 13px;
  color: var(--text-muted);
}

.news-time i {
  margin-right: 4px;
}

.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 20px;
  background: rgba(255,255,255,0.03);
  border: 1px dashed rgba(255,255,255,0.10);
  border-radius: var(--radius-lg);
  color: var(--text-muted);
  font-size: 15px;
}

/* ============ FAQ ============ */
.faq-section {
  padding: 64px 0;
}

.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition);
}

.faq-item.active {
  border-color: rgba(41,230,255,0.3);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  background: none;
  color: var(--text-main);
  font-size: 16px;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  transition: background var(--transition);
}

.faq-question:hover {
  background: rgba(255,255,255,0.03);
}

.faq-question i {
  color: var(--accent-cyan);
  transition: transform var(--transition);
  flex-shrink: 0;
}

.faq-item.active .faq-question i {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-answer p {
  padding: 0 24px 20px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ============ 底部CTA ============ */
.bottom-cta {
  padding: 64px 0;
  position: relative;
  background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
}

.bottom-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(6,13,24,0.95), rgba(14,58,140,0.75));
}

.cta-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 64px 24px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.cta-inner h2 {
  font-size: 34px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
}

.cta-inner p {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 28px;
}

/* ============ 页脚 ============ */
.site-footer {
  background: var(--bg-secondary);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 64px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.footer-brand .logo-text {
  font-size: 20px;
  margin-bottom: 12px;
  display: block;
}

.footer-brand p {
  font-size: 14px;
  color: var(--text-muted);
  max-width: 320px;
  line-height: 1.7;
}

.footer-links h4 {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 16px;
}

.footer-links a {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-secondary);
  padding: 5px 0;
  transition: all var(--transition);
}

.footer-links a:hover {
  color: var(--accent-cyan);
  padding-left: 4px;
}

.footer-links a i {
  font-size: 10px;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 20px;
  font-size: 13px;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 12px;
}

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
  .live-card {
    flex-direction: column;
  }
  .live-card-media {
    flex: none;
  }
  .live-card-media img {
    min-height: 220px;
  }
  .countdown-box {
    min-width: 76px;
    padding: 14px 8px;
  }
  .count-num {
    font-size: 42px;
  }
  .entry-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 900px) {
  .nav-toggle {
    display: flex;
  }
  .nav-links {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    left: 24px;
    right: 24px;
    background: rgba(13,23,38,0.98);
    border: 1px solid rgba(255,255,255,0.10);
    border-radius: var(--radius-lg);
    padding: 16px;
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    box-shadow: var(--shadow-hover);
  }
  .nav-links.open {
    display: flex;
  }
  .nav-link {
    padding: 12px 16px;
  }
  .hero h1 {
    font-size: 36px;
  }
  .hero-subtitle {
    font-size: 16px;
  }
  .countdown-grid {
    gap: 10px;
  }
  .countdown-box {
    min-width: 64px;
  }
  .count-num {
    font-size: 34px;
  }
  .count-colon {
    font-size: 28px;
  }
  .news-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

@media (max-width: 640px) {
  .section-padding {
    padding: 56px 0;
  }
  .hero {
    min-height: 520px;
  }
  .hero-content {
    padding: 100px 0 80px;
  }
  .hero h1 {
    font-size: 29px;
    line-height: 1.2;
  }
  .hero-subtitle {
    font-size: 15px;
  }
  .hero-actions {
    flex-direction: column;
    gap: 12px;
  }
  .hero-actions .btn-primary,
  .hero-actions .btn-secondary {
    justify-content: center;
  }
  .live-card {
    padding: 16px;
    gap: 20px;
  }
  .live-card-info h2 {
    font-size: 24px;
  }
  .live-card-info .badge {
    margin-bottom: 12px;
  }
  .countdown-panel {
    padding: 28px 16px;
  }
  .countdown-panel h3 {
    font-size: 21px;
  }
  .countdown-box {
    min-width: 52px;
    padding: 10px 6px;
  }
  .count-num {
    font-size: 26px;
  }
  .count-label {
    font-size: 11px;
  }
  .countdown-grid {
    gap: 6px;
  }
  .count-colon {
    font-size: 22px;
  }
  .highlight-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    padding: 16px;
  }
  .highlight-content {
    width: 100%;
  }
  .highlight-item .btn-text {
    align-self: flex-end;
  }
  .subscribe-card {
    padding: 24px 16px;
    flex-direction: column;
    align-items: stretch;
    gap: 16px;
  }
  .subscribe-form {
    flex-direction: column;
    gap: 10px;
    max-width: none;
  }
  .subscribe-form input {
    border-radius: var(--radius-sm);
  }
  .subscribe-form .btn-primary {
    border-radius: var(--radius-sm);
    justify-content: center;
  }
  .entry-grid {
    grid-template-columns: 1fr;
  }
  .entry-card .card-img img {
    height: 160px;
  }
  .news-grid {
    grid-template-columns: 1fr;
  }
  .cta-inner {
    padding: 40px 16px;
  }
  .cta-inner h2 {
    font-size: 26px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  .nav-panel {
    padding: 12px 14px;
  }
  .nav-logo .logo-text {
    font-size: 15px;
  }
  .logo-icon {
    width: 36px;
    height: 36px;
    font-size: 18px;
  }
  .nav-cta {
    font-size: 13px;
    padding: 10px 16px;
  }
}

/* roulang page: article */
/* ========== Design Tokens ========== */
:root{
  --primary:#1B6BFF;
  --primary-dark:#0E3A8C;
  --bg-dark:#060D18;
  --bg-secondary:#0B1524;
  --bg-card:#101D30;
  --cyan:#29E6FF;
  --orange:#FF7A1A;
  --orange-hover:#FF9A3D;
  --text-main:#E6EDF6;
  --text-secondary:#93A5BC;
  --text-muted:#5C7189;
  --success:#2EE6A8;
  --warning:#FFC542;
  --border-white:rgba(255,255,255,0.10);
  --glass-bg:rgba(255,255,255,0.05);
  --glass-highlight:inset 0 1px 0 rgba(255,255,255,0.12);
  --radius-lg:16px;
  --radius-md:10px;
  --radius-sm:8px;
  --radius-pill:999px;
  --shadow-card:0 8px 30px rgba(0,0,0,0.35);
  --shadow-hover:0 20px 50px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.06);
  --shadow-glow:0 0 22px rgba(27,107,255,0.45);
  --shadow-orange:0 0 24px rgba(255,122,26,0.5);
  --transition:0.2s ease;
  --container-max:1200px;
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-num:Inter,"DIN Alternate",sans-serif;
}

/* ========== Reset & Base ========== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:var(--font-sans);
  background:var(--bg-dark);
  color:var(--text-main);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--primary);text-decoration:none;transition:color var(--transition);}
a:hover{color:var(--cyan);}
button,input,select,textarea{font-family:inherit;font-size:inherit;line-height:inherit;}
ul,ol{list-style:none;}
h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.3;letter-spacing:-0.01em;}

.container{max-width:var(--container-max);margin:0 auto;padding:0 24px;}
::selection{background:rgba(27,107,255,0.4);color:#fff;}

/* ========== Buttons ========== */
.btn-primary{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:var(--orange);
  color:#0B1524;
  font-weight:700;
  padding:12px 28px;
  border-radius:var(--radius-sm);
  border:1px solid transparent;
  cursor:pointer;
  transition:all var(--transition);
  font-size:15px;
  line-height:1;
  text-decoration:none;
}
.btn-primary:hover{
  background:var(--orange-hover);
  color:#0B1524;
  box-shadow:var(--shadow-orange);
  transform:translateY(-1px);
}
.btn-primary:active{transform:translateY(1px);}

.btn-secondary{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(255,255,255,0.06);
  color:#fff;
  font-weight:600;
  padding:12px 28px;
  border-radius:var(--radius-sm);
  border:1px solid var(--border-white);
  cursor:pointer;
  transition:all var(--transition);
  font-size:15px;
  line-height:1;
  text-decoration:none;
}
.btn-secondary:hover{
  background:rgba(255,255,255,0.12);
  color:#fff;
  border-color:rgba(255,255,255,0.25);
  transform:translateY(-1px);
}
.btn-secondary:active{transform:translateY(1px);}
.btn-primary:focus-visible,.btn-secondary:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:3px;
}

/* ========== Navigation ========== */
.main-nav{
  position:fixed;
  top:0;
  left:0;
  width:100%;
  z-index:1000;
  padding:14px 20px;
  background:rgba(6,13,24,0.7);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
}
.nav-panel{
  max-width:var(--container-max);
  margin:0 auto;
  display:flex;
  align-items:center;
  gap:20px;
  background:rgba(11,21,36,0.9);
  border:1px solid var(--border-white);
  border-radius:var(--radius-lg);
  padding:12px 20px;
  box-shadow:0 8px 30px rgba(0,0,0,0.35), inset 0 1px 0 rgba(255,255,255,0.05);
}
.nav-logo{
  display:flex;
  align-items:center;
  gap:10px;
  text-decoration:none;
  flex-shrink:0;
}
.logo-icon{
  width:40px;
  height:40px;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:#fff;
  font-size:20px;
  font-weight:800;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:10px;
  box-shadow:0 0 16px rgba(27,107,255,0.35);
}
.logo-text{
  font-size:14px;
  font-weight:700;
  color:#fff;
  line-height:1.3;
  display:flex;
  flex-direction:column;
}
.nav-toggle{
  display:none;
  flex-direction:column;
  gap:5px;
  background:none;
  border:none;
  cursor:pointer;
  padding:6px;
  margin-left:auto;
}
.nav-toggle span{
  width:22px;height:2px;
  background:#fff;
  border-radius:2px;
  transition:all var(--transition);
}
.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);}

.nav-links{
  display:flex;
  align-items:center;
  gap:8px;
  flex:1;
  justify-content:center;
  flex-wrap:nowrap;
}
.nav-link{
  display:inline-flex;
  align-items:center;
  gap:7px;
  background:rgba(255,255,255,0.04);
  border:1px solid transparent;
  border-radius:var(--radius-md);
  padding:9px 16px;
  font-size:14px;
  font-weight:500;
  color:var(--text-secondary);
  text-decoration:none;
  transition:all var(--transition);
  white-space:nowrap;
}
.nav-link i{font-size:14px;color:var(--primary);}
.nav-link:hover{
  background:rgba(43,107,255,0.18);
  color:#fff;
  border-color:rgba(43,107,255,0.25);
  transform:translateY(-1px);
}
.nav-link.active{
  background:rgba(43,107,255,0.22);
  color:#fff;
  border-color:rgba(27,107,255,0.4);
  box-shadow:0 0 16px rgba(27,107,255,0.15);
}
.nav-cta{
  flex-shrink:0;
  padding:10px 22px;
  font-size:14px;
}

/* ========== Breadcrumb ========== */
.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:6px;
  padding:110px 0 0;
  font-size:13px;
  color:var(--text-secondary);
}
.breadcrumb a{
  color:var(--text-secondary);
  text-decoration:none;
  transition:color var(--transition);
}
.breadcrumb a:hover{color:var(--cyan);}
.breadcrumb .breadcrumb-sep{
  color:var(--text-muted);
  margin:0 2px;
}
.breadcrumb .current{
  color:var(--text-main);
  font-weight:600;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
  max-width:280px;
}

/* ========== Article Header ========== */
.article-page{
  padding-bottom:96px;
  background:
    radial-gradient(ellipse at 80% -20%, rgba(27,107,255,0.15), transparent 50%),
    radial-gradient(ellipse at 20% 110%, rgba(41,230,255,0.08), transparent 50%),
    var(--bg-dark);
}
.article-header{
  padding:56px 0 40px;
  text-align:center;
  max-width:860px;
  margin:0 auto;
}
.article-header h1{
  font-size:clamp(28px,5vw,44px);
  line-height:1.3;
  letter-spacing:-0.02em;
  font-weight:800;
  color:#fff;
  margin-bottom:20px;
}
.article-meta{
  display:flex;
  align-items:center;
  justify-content:center;
  flex-wrap:wrap;
  gap:18px;
  margin-bottom:24px;
}
.meta-item{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13px;
  color:var(--text-secondary);
}
.meta-item i{
  color:var(--primary);
  font-size:14px;
}
.article-desc{
  font-size:15px;
  color:var(--text-secondary);
  line-height:1.8;
  max-width:720px;
  margin:0 auto;
  padding:16px 24px;
  background:rgba(255,255,255,0.03);
  border:1px solid var(--border-white);
  border-radius:var(--radius-lg);
  backdrop-filter:blur(10px);
}

/* ========== Article Content ========== */
.article-content{
  max-width:780px;
  margin:40px auto 0;
  background:rgba(255,255,255,0.03);
  border:1px solid var(--border-white);
  border-radius:var(--radius-lg);
  padding:48px 56px;
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
}
.article-content p{
  font-size:16px;
  line-height:1.9;
  color:#D7E1EE;
  margin-bottom:24px;
}
.article-content h2{
  font-size:24px;
  font-weight:700;
  color:#fff;
  margin:40px 0 16px;
  padding-left:14px;
  border-left:4px solid var(--primary);
  line-height:1.4;
}
.article-content h3{
  font-size:19px;
  font-weight:600;
  color:#fff;
  margin:32px 0 14px;
}
.article-content img{
  border-radius:12px;
  margin:24px 0;
  box-shadow:var(--shadow-card);
}
.article-content ul,.article-content ol{
  margin:0 0 24px;
  padding-left:24px;
}
.article-content ul li{
  position:relative;
  padding-left:6px;
  margin-bottom:10px;
  color:#D7E1EE;
  line-height:1.8;
}
.article-content ul li::before{
  content:"";position:absolute;left:-14px;top:11px;
  width:6px;height:6px;border-radius:50%;
  background:var(--cyan);
  box-shadow:0 0 8px rgba(41,230,255,0.5);
}
.article-content ol li{
  list-style:decimal;
  margin-bottom:10px;
  color:#D7E1EE;
  line-height:1.8;
}
.article-content blockquote{
  margin:28px 0;
  padding:20px 24px;
  border-left:3px solid var(--cyan);
  background:rgba(41,230,255,0.06);
  border-radius:0 12px 12px 0;
  color:var(--text-secondary);
  font-size:15px;
  line-height:1.8;
}
.article-content blockquote p{margin:0;color:inherit;}
.article-content code{
  background:var(--bg-secondary);
  color:var(--cyan);
  font-family:"SF Mono","Fira Code",Consolas,monospace;
  padding:2px 8px;
  border-radius:6px;
  font-size:14px;
}
.article-content pre{
  background:var(--bg-secondary);
  border:1px solid var(--border-white);
  border-radius:var(--radius-md);
  padding:24px;
  margin:28px 0;
  overflow-x:auto;
  color:#B8C6DB;
  font-family:"SF Mono","Fira Code",Consolas,monospace;
  font-size:14px;
  line-height:1.8;
}
.article-content pre code{
  background:none;
  padding:0;
  color:inherit;
  font-size:inherit;
}
.article-content table{
  width:100%;
  border-collapse:collapse;
  margin:28px 0;
  font-size:14px;
}
.article-content table th{
  background:var(--bg-card);
  color:#fff;
  text-align:left;
  padding:12px 16px;
  border:1px solid var(--border-white);
}
.article-content table td{
  padding:12px 16px;
  border:1px solid var(--border-white);
  color:var(--text-secondary);
}
.article-source{
  margin-top:48px;
  padding-top:24px;
  border-top:1px solid var(--border-white);
  font-size:13px;
  color:var(--text-muted);
  text-align:center;
  letter-spacing:0.02em;
}

/* ========== Not Found ========== */
.not-found{
  text-align:center;
  padding:60px 30px;
}
.not-found i{
  font-size:56px;
  color:var(--primary);
  margin-bottom:20px;
  display:block;
  opacity:0.7;
}
.not-found p{
  font-size:20px;
  font-weight:600;
  color:var(--text-main);
  margin-bottom:24px;
}

/* ========== Related Section ========== */
.related-section{
  max-width:1200px;
  margin:64px auto 0;
  padding:0 24px;
}
.related-section h2{
  font-size:28px;
  font-weight:700;
  color:#fff;
  text-align:center;
  margin-bottom:36px;
  position:relative;
}
.related-section h2::after{
  content:"";
  display:block;
  width:48px;height:3px;
  background:var(--orange);
  border-radius:99px;
  margin:14px auto 0;
  box-shadow:0 0 16px rgba(255,122,26,0.4);
}
.related-card{
  background:rgba(255,255,255,0.04);
  border:1px solid var(--border-white);
  border-radius:var(--radius-lg);
  overflow:hidden;
  transition:all var(--transition);
  height:100%;
  display:flex;
  flex-direction:column;
  text-decoration:none;
  color:var(--text-main);
}
.related-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
  border-color:rgba(255,255,255,0.2);
  color:var(--text-main);
}
.related-card .card-img{
  position:relative;
  overflow:hidden;
  aspect-ratio:16/10;
}
.related-card .card-img img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform 0.4s ease;
}
.related-card:hover .card-img img{
  transform:scale(1.06);
}
.related-card .card-body{
  padding:20px 22px;
  flex:1;
  display:flex;
  flex-direction:column;
  gap:8px;
}
.related-card .card-time{
  font-size:12px;
  color:var(--text-muted);
  display:flex;
  align-items:center;
  gap:6px;
}
.related-card .card-title{
  font-size:17px;
  font-weight:600;
  color:#fff;
  line-height:1.4;
}
.related-card .card-excerpt{
  font-size:13px;
  color:var(--text-secondary);
  line-height:1.6;
  flex:1;
}

/* ========== Article Footer Nav ========== */
.article-footer-nav{
  max-width:780px;
  margin:48px auto 0;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:20px;
  flex-wrap:wrap;
}

/* ========== Footer ========== */
.site-footer{
  background:var(--bg-secondary);
  border-top:1px solid var(--border-white);
  padding:64px 0 32px;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.2fr 1fr;
  gap:48px;
  margin-bottom:48px;
}
.footer-brand .logo-text{
  font-size:20px;
  color:#fff;
  margin-bottom:16px;
  display:inline-block;
}
.footer-brand p{
  font-size:14px;
  color:var(--text-secondary);
  line-height:1.8;
  max-width:360px;
}
.footer-links h4{
  font-size:16px;
  font-weight:600;
  color:#fff;
  margin-bottom:20px;
}
.footer-links a{
  display:flex;
  align-items:center;
  gap:8px;
  color:var(--text-secondary);
  font-size:14px;
  margin-bottom:12px;
  text-decoration:none;
  transition:all var(--transition);
}
.footer-links a i{
  font-size:11px;
  color:var(--primary);
}
.footer-links a:hover{
  color:var(--cyan);
  padding-left:4px;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.06);
  padding-top:28px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  flex-wrap:wrap;
  gap:12px;
  font-size:13px;
  color:var(--text-muted);
}

/* ========== Responsive ========== */
@media screen and (max-width:1024px){
  .nav-links{gap:4px;}
  .nav-link{padding:8px 12px;font-size:13px;}
}

@media screen and (max-width:900px){
  .nav-panel{flex-wrap:wrap;position:relative;}
  .nav-toggle{display:flex;}
  .nav-links{
    display:none;
    width:100%;
    flex-direction:column;
    align-items:stretch;
    gap:6px;
    padding-top:12px;
    margin-top:12px;
    border-top:1px solid var(--border-white);
  }
  .nav-links.open{
    display:flex;
    animation:fadeIn 0.25s ease;
  }
  .nav-link{
    justify-content:flex-start;
    padding:12px 16px;
    font-size:14px;
  }
  .nav-cta{
    margin-left:auto;
  }
  .article-content{
    padding:32px 28px;
    margin-top:28px;
  }
  .article-footer-nav{
    padding:0 16px;
  }
}

@media screen and (max-width:640px){
  .breadcrumb{
    padding:100px 16px 0;
    font-size:12px;
  }
  .article-header{
    padding:36px 16px 28px;
  }
  .article-header h1{
    font-size:26px;
  }
  .article-meta{
    gap:12px;
  }
  .meta-item{
    font-size:12px;
  }
  .article-desc{
    padding:14px 18px;
    font-size:14px;
  }
  .article-content{
    margin:20px 16px 0;
    padding:24px 20px;
    border-radius:14px;
  }
  .article-content p{
    font-size:15px;
    line-height:1.85;
  }
  .article-content h2{
    font-size:20px;
  }
  .article-content h3{
    font-size:17px;
  }
  .related-section{
    padding:0 16px;
  }
  .related-section h2{
    font-size:24px;
  }
  .article-footer-nav{
    padding:0 16px;
    flex-direction:column;
    align-items:stretch;
    gap:12px;
  }
  .article-footer-nav .btn-primary,
  .article-footer-nav .btn-secondary{
    justify-content:center;
    width:100%;
  }
  .footer-grid{
    grid-template-columns:1fr;
    gap:32px;
    padding:0 16px;
  }
  .footer-bottom{
    flex-direction:column;
    text-align:center;
    padding:20px 16px 0;
  }
  .container{
    padding:0 16px;
  }
}

@keyframes fadeIn{
  from{opacity:0;transform:translateY(-8px);}
  to{opacity:1;transform:translateY(0);}
}

/* roulang page: category1 */
/* ============= 设计变量 ============= */
        :root {
            --bg-primary: #060D18;
            --bg-secondary: #0B1524;
            --bg-card: rgba(255, 255, 255, 0.05);
            --bg-card-hover: rgba(255, 255, 255, 0.09);
            --bg-panel: rgba(13, 23, 38, 0.85);
            --border-white: rgba(255, 255, 255, 0.10);
            --border-hover: rgba(255, 255, 255, 0.22);
            --blue: #1B6BFF;
            --blue-deep: #0E3A8C;
            --cyan: #29E6FF;
            --orange: #FF7A1A;
            --orange-hover: #FF9A3D;
            --text-primary: #E6EDF6;
            --text-secondary: #93A5BC;
            --text-muted: #5C7189;
            --success: #2EE6A8;
            --warning: #FFC542;
            --radius-lg: 16px;
            --radius-md: 10px;
            --radius-sm: 8px;
            --radius-pill: 999px;
            --shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 20px 50px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.06);
            --glow-blue: 0 0 22px rgba(27, 107, 255, 0.45);
            --glow-orange: 0 0 24px rgba(255, 122, 26, 0.5);
            --transition: 0.2s ease;
            --content: 1200px;
            --space: 96px;
            --space-mobile: 56px;
        }

        /* ============= 基础 Reset ============= */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            background: var(--bg-primary);
            color: var(--text-primary);
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

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

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

        input,
        textarea {
            font-family: inherit;
        }

        h1,
        h2,
        h3,
        h4 {
            line-height: 1.3;
            letter-spacing: -0.01em;
        }

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

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

        .section-tag {
            display: inline-flex;
            align-items: center;
            background: rgba(27, 107, 255, 0.15);
            border: 1px solid rgba(27, 107, 255, 0.35);
            color: var(--cyan);
            padding: 4px 16px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            letter-spacing: 0.05em;
            margin-bottom: 16px;
        }

        .section-title {
            font-size: 34px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .section-desc {
            color: var(--text-secondary);
            font-size: 15px;
            max-width: 680px;
            line-height: 1.8;
        }

        /* ============= 导航面板 ============= */
        .main-nav {
            position: sticky;
            top: 16px;
            z-index: 1000;
            margin-top: 16px;
        }

        .main-nav .container {
            padding: 0 24px;
            max-width: 1280px;
        }

        .nav-panel {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            background: var(--bg-panel);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid var(--border-white);
            border-radius: var(--radius-lg);
            padding: 14px 20px;
            box-shadow: var(--shadow), inset 0 1px 0 rgba(255, 255, 255, 0.12);
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .logo-icon {
            width: 42px;
            height: 42px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--blue) 0%, var(--blue-deep) 100%);
            border-radius: 12px;
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            box-shadow: var(--glow-blue);
        }

        .logo-text {
            font-size: 16px;
            font-weight: 700;
            line-height: 1.35;
            color: var(--text-primary);
            letter-spacing: 0.02em;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            justify-content: center;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 14px;
            border-radius: var(--radius-md);
            font-size: 14px;
            color: var(--text-secondary);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid transparent;
            transition: var(--transition);
            white-space: nowrap;
        }

        .nav-link i {
            font-size: 14px;
            color: var(--text-muted);
        }

        .nav-link:hover {
            background: rgba(43, 107, 255, 0.18);
            color: #fff;
            border-color: rgba(27, 107, 255, 0.3);
        }

        .nav-link.active {
            background: rgba(43, 107, 255, 0.22);
            color: #fff;
            border-color: rgba(27, 107, 255, 0.45);
            box-shadow: 0 0 12px rgba(27, 107, 255, 0.2);
        }

        .nav-link.active i {
            color: var(--cyan);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            width: 40px;
            height: 40px;
            justify-content: center;
            align-items: center;
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-white);
        }

        .nav-toggle span {
            display: block;
            width: 18px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: var(--transition);
        }

        .nav-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }

        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* ============= 按钮系统 ============= */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--orange);
            color: #0B1524;
            font-weight: 700;
            font-size: 15px;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            border: none;
            cursor: pointer;
            line-height: 1.5;
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: var(--orange-hover);
            box-shadow: var(--glow-orange);
            transform: translateY(-2px);
            color: #0B1524;
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: none;
        }

        .btn-primary:focus-visible,
        .btn-secondary:focus-visible,
        .btn-text:focus-visible,
        .nav-link:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 2px;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border-white);
            color: #fff;
            font-size: 15px;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            cursor: pointer;
            white-space: nowrap;
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: var(--border-hover);
            color: #fff;
            transform: translateY(-2px);
        }

        .btn-text {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--cyan);
            font-size: 14px;
            font-weight: 600;
            background: none;
            border: none;
            cursor: pointer;
            padding: 6px 0;
            transition: var(--transition);
        }

        .btn-text i {
            transition: transform var(--transition);
        }

        .btn-text:hover {
            color: #fff;
        }

        .btn-text:hover i {
            transform: translateX(4px);
        }

        .nav-cta {
            padding: 10px 22px;
            font-size: 14px;
            flex-shrink: 0;
        }

        /* ============= 面包屑 ============= */
        .breadcrumb-wrap {
            padding: 12px 0 0;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-secondary);
        }

        .breadcrumb a {
            color: var(--text-secondary);
        }

        .breadcrumb a:hover {
            color: var(--cyan);
        }

        .breadcrumb .current {
            color: var(--text-primary);
            font-weight: 600;
        }

        /* ============= Hero ============= */
        .cat-hero {
            position: relative;
            background: linear-gradient(135deg, rgba(6, 13, 24, 0.92) 0%, rgba(6, 13, 24, 0.65) 100%), url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            border-radius: var(--radius-lg);
            padding: 80px 56px;
            margin-top: 32px;
            overflow: hidden;
            border: 1px solid var(--border-white);
            box-shadow: var(--shadow);
        }

        .cat-hero::after {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(41, 230, 255, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }

        .cat-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(41, 230, 255, 0.1);
            border: 1px solid rgba(41, 230, 255, 0.3);
            color: var(--cyan);
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 20px;
            letter-spacing: 0.04em;
        }

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

        .cat-hero h1 {
            font-size: 48px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: -0.01em;
            line-height: 1.25;
            max-width: 700px;
        }

        .cat-hero .hero-sub {
            font-size: 17px;
            color: rgba(230, 237, 246, 0.75);
            margin-bottom: 32px;
            max-width: 560px;
            line-height: 1.8;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            align-items: center;
        }

        /* ============= 榜单区 ============= */
        .ranking-section {
            position: relative;
        }

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

        .rank-card {
            background: var(--bg-card);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-white);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            position: relative;
            transition: var(--transition);
            box-shadow: var(--shadow);
            overflow: hidden;
        }

        .rank-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: linear-gradient(90deg, var(--blue), transparent);
            opacity: 0.5;
        }

        .rank-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-hover);
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .rank-number {
            font-family: "Inter", "DIN Alternate", sans-serif;
            font-size: 52px;
            font-weight: 800;
            line-height: 1;
            color: transparent;
            -webkit-text-stroke: 1px rgba(41, 230, 255, 0.4);
            margin-bottom: 16px;
        }

        .rank-card.featured .rank-number {
            -webkit-text-stroke: 1px var(--orange);
        }

        .rank-card .rank-img {
            border-radius: var(--radius-md);
            overflow: hidden;
            margin-bottom: 18px;
            aspect-ratio: 16/9;
            background: linear-gradient(135deg, var(--blue-deep), var(--bg-secondary));
        }

        .rank-card .rank-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .rank-card .rank-cat {
            display: inline-block;
            background: rgba(27, 107, 255, 0.2);
            color: var(--cyan);
            font-size: 12px;
            padding: 2px 10px;
            border-radius: var(--radius-pill);
            margin-bottom: 10px;
        }

        .rank-card h3 {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 8px;
        }

        .rank-card p {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .rank-card .card-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .rank-card .trend {
            color: var(--success);
            font-size: 13px;
            display: flex;
            align-items: center;
            gap: 4px;
        }

        /* ============= 新作推荐网格 ============= */
        .new-games-section {
            background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
        }

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

        .game-card {
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--bg-card);
            backdrop-filter: blur(16px);
            border: 1px solid var(--border-white);
            transition: var(--transition);
            box-shadow: var(--shadow);
        }

        .game-card:hover {
            background: var(--bg-card-hover);
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--border-hover);
        }

        .game-card-img {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
            background: linear-gradient(135deg, #101D30, var(--blue-deep));
        }

        .game-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .game-card-img .game-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(6, 13, 24, 0.8);
            backdrop-filter: blur(4px);
            color: var(--cyan);
            font-size: 12px;
            padding: 4px 12px;
            border-radius: var(--radius-pill);
            border: 1px solid rgba(41, 230, 255, 0.3);
        }

        .game-card-body {
            padding: 20px 20px 22px;
        }

        .game-card-body h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 6px;
        }

        .game-card-body p {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 14px;
        }

        .game-card-body .game-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            color: var(--text-muted);
            font-size: 13px;
        }

        .game-card-body .game-meta i {
            color: var(--orange);
            margin-right: 4px;
        }

        /* ============= 亮点区 ============= */
        .features-section {}

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

        .feature-item {
            background: var(--bg-card);
            backdrop-filter: blur(16px);
            border: 1px solid var(--border-white);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            transition: var(--transition);
            box-shadow: var(--shadow);
            text-align: center;
        }

        .feature-item:hover {
            background: var(--bg-card-hover);
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--border-hover);
        }

        .feature-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 16px;
            background: linear-gradient(135deg, rgba(27, 107, 255, 0.2), rgba(27, 107, 255, 0.05));
            border: 1px solid rgba(27, 107, 255, 0.3);
            color: var(--cyan);
            font-size: 24px;
        }

        .feature-item:nth-child(4) .feature-icon {
            background: linear-gradient(135deg, rgba(255, 122, 26, 0.2), rgba(255, 122, 26, 0.05));
            border-color: rgba(255, 122, 26, 0.3);
            color: var(--orange);
        }

        .feature-item h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
        }

        .feature-item p {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.7;
        }

        /* ============= 分类交叉链接 ============= */
        .crosslink-section {
            background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
            position: relative;
            overflow: hidden;
        }

        .crosslink-section::before {
            content: '';
            position: absolute;
            left: 50%;
            top: 0;
            width: 600px;
            height: 200px;
            transform: translateX(-50%);
            background: radial-gradient(ellipse, rgba(27, 107, 255, 0.1) 0%, transparent 70%);
            pointer-events: none;
        }

        .crosslink-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
            margin-top: 40px;
            position: relative;
        }

        .cross-card {
            background: var(--bg-card);
            backdrop-filter: blur(16px);
            border: 1px solid var(--border-white);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            transition: var(--transition);
            box-shadow: var(--shadow);
        }

        .cross-card:hover {
            background: var(--bg-card-hover);
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--border-hover);
        }

        .cross-card-icon {
            width: 56px;
            height: 56px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 14px;
            background: linear-gradient(135deg, rgba(41, 230, 255, 0.15), rgba(41, 230, 255, 0.03));
            border: 1px solid rgba(41, 230, 255, 0.25);
            color: var(--cyan);
            font-size: 22px;
        }

        .cross-card:nth-child(2) .cross-card-icon {
            background: linear-gradient(135deg, rgba(255, 122, 26, 0.15), rgba(255, 122, 26, 0.03));
            border-color: rgba(255, 122, 26, 0.25);
            color: var(--orange);
        }

        .cross-card-info {
            flex: 1;
        }

        .cross-card-info h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 4px;
        }

        .cross-card-info p {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.6;
        }

        .cross-card .btn-text {
            flex-shrink: 0;
        }

        /* ============= FAQ ============= */
        .faq-section {}

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

        .accordion-item {
            background: var(--bg-card);
            backdrop-filter: blur(16px);
            border: 1px solid var(--border-white);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: var(--transition);
        }

        .accordion-item:hover {
            border-color: var(--border-hover);
            background: var(--bg-card-hover);
        }

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

        .accordion-title::after {
            content: '\f107';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            color: var(--cyan);
            transition: transform var(--transition);
        }

        .accordion-item.is-active .accordion-title::after {
            transform: rotate(180deg);
        }

        .accordion-content {
            padding: 0 24px 20px;
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.8;
        }

        /* ============= CTA 区 ============= */
        .cta-section {
            background: linear-gradient(135deg, rgba(27, 107, 255, 0.08), rgba(41, 230, 255, 0.04)), url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            border-top: 1px solid var(--border-white);
            border-bottom: 1px solid var(--border-white);
            position: relative;
            padding: 80px 0;
        }

        .cta-inner {
            text-align: center;
            max-width: 640px;
            margin: 0 auto;
            padding: 40px 32px;
        }

        .cta-inner h2 {
            font-size: 36px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }

        .cta-inner p {
            color: rgba(230, 237, 246, 0.7);
            font-size: 16px;
            margin-bottom: 28px;
        }

        .cta-inner .btn-primary {
            font-size: 17px;
            padding: 14px 36px;
        }

        /* ============= 页脚 ============= */
        .site-footer {
            background: var(--bg-secondary);
            border-top: 1px solid var(--border-white);
            padding: 56px 0 24px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-brand .logo-text {
            display: inline-block;
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .footer-brand p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.8;
            max-width: 380px;
        }

        .footer-links h4 {
            color: var(--text-primary);
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 16px;
        }

        .footer-links a {
            display: block;
            color: var(--text-secondary);
            font-size: 14px;
            padding: 6px 0;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: var(--cyan);
            padding-left: 6px;
        }

        .footer-links a i {
            font-size: 12px;
            margin-right: 6px;
            color: var(--text-muted);
        }

        .footer-links a:hover i {
            color: var(--cyan);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding-top: 24px;
            color: var(--text-muted);
            font-size: 13px;
            flex-wrap: wrap;
        }

        /* ============= 响应式 ============= */
        @media (max-width: 1024px) {

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

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

            .nav-links {
                position: absolute;
                top: 100%;
                left: 24px;
                right: 24px;
                background: var(--bg-panel);
                backdrop-filter: blur(20px);
                border: 1px solid var(--border-white);
                border-radius: 0 0 var(--radius-lg) var(--radius-lg);
                padding: 16px;
                flex-direction: column;
                align-items: stretch;
                gap: 8px;
                display: none;
                z-index: 1000;
                box-shadow: var(--shadow);
            }

            .nav-links.open {
                display: flex;
            }

            .nav-link {
                justify-content: flex-start;
            }

            .nav-toggle {
                display: flex;
            }

            .cat-hero {
                padding: 60px 32px;
            }

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

        @media (max-width: 640px) {
            .container {
                padding: 0 16px;
            }

            .main-nav {
                top: 8px;
                margin-top: 8px;
            }

            .nav-panel {
                padding: 12px 14px;
                gap: 12px;
            }

            .nav-links {
                left: 16px;
                right: 16px;
            }

            .logo-text {
                font-size: 14px;
            }

            .logo-icon {
                width: 36px;
                height: 36px;
                font-size: 18px;
            }

            .nav-cta {
                padding: 8px 14px;
                font-size: 13px;
            }

            .cat-hero {
                padding: 48px 20px;
                border-radius: var(--radius-md);
            }

            .cat-hero h1 {
                font-size: 30px;
            }

            .cat-hero .hero-sub {
                font-size: 15px;
            }

            .section-pad {
                padding: var(--space-mobile) 0;
            }

            .section-title {
                font-size: 26px;
            }

            .ranking-grid,
            .games-grid,
            .features-grid,
            .crosslink-grid {
                grid-template-columns: 1fr;
                gap: 16px;
                margin-top: 28px;
            }

            .rank-card,
            .feature-item,
            .cross-card {
                padding: 20px;
            }

            .rank-number {
                font-size: 40px;
            }

            .hero-actions .btn-primary,
            .hero-actions .btn-secondary {
                width: 100%;
                justify-content: center;
            }

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

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                text-align: left;
            }

            .cta-inner h2 {
                font-size: 28px;
            }

            .cta-inner .btn-primary {
                width: 100%;
                justify-content: center;
            }

            .accordion-title {
                padding: 16px 18px;
                font-size: 15px;
            }

            .accordion-content {
                padding: 0 18px 16px;
            }
        }

        @media (max-width: 400px) {
            .nav-cta {
                display: none;
            }

            .logo-text {
                font-size: 13px;
            }
        }

/* roulang page: category3 */
:root {
  --primary: #1B6BFF;
  --primary-dark: #0E3A8C;
  --bg-dark: #060D18;
  --bg-secondary: #0B1524;
  --bg-card: #101D30;
  --accent: #29E6FF;
  --cta: #FF7A1A;
  --cta-hover: #FF9A3D;
  --text-main: #E6EDF6;
  --text-secondary: #93A5BC;
  --text-muted: #5C7189;
  --success: #2EE6A8;
  --warning: #FFC542;
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 8px;
  --shadow-normal: 0 8px 30px rgba(0,0,0,0.35);
  --shadow-hover: 0 20px 50px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.06);
  --border-glass: rgba(255,255,255,0.10);
  --transition: 0.2s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.8;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: color 0.2s ease;
}

ul {
  list-style: none;
}

button, input {
  font-family: inherit;
  border: none;
  outline: none;
}

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

@media (max-width: 640px) {
  .container {
    padding: 0 16px;
  }
}

/* ===== 导航面板 ===== */
.main-nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: 16px 0 8px;
}

.nav-panel {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 24px;
  background: rgba(13, 23, 38, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 14px 20px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-glass);
  box-shadow: 0 8px 30px rgba(0,0,0,0.35), inset 0 1px 0 rgba(255,255,255,0.08);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  box-shadow: 0 0 16px rgba(27, 107, 255, 0.4);
}

.logo-text {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-main);
  letter-spacing: 0.02em;
}

.nav-toggle {
  display: none;
  background: rgba(255,255,255,0.08);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  cursor: pointer;
  flex-direction: column;
  gap: 4px;
}

.nav-toggle span {
  width: 18px;
  height: 2px;
  background: var(--text-main);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.nav-links {
  display: flex;
  gap: 8px;
  flex: 1;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.04);
  border: 1px solid transparent;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all 0.2s ease;
}

.nav-link i {
  font-size: 14px;
}

.nav-link:hover {
  background: rgba(43, 107, 255, 0.18);
  color: #fff;
  border-color: rgba(27, 107, 255, 0.3);
}

.nav-link.active {
  background: rgba(43, 107, 255, 0.25);
  color: #fff;
  border-color: rgba(27, 107, 255, 0.4);
  box-shadow: 0 0 12px rgba(27, 107, 255, 0.15);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--cta);
  color: var(--bg-dark);
  font-weight: 700;
  font-size: 14px;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
  border: 1px solid transparent;
  cursor: pointer;
  flex-shrink: 0;
}

.btn-primary:hover {
  background: var(--cta-hover);
  box-shadow: 0 0 24px rgba(255, 122, 26, 0.5);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(1px);
  box-shadow: 0 0 10px rgba(255, 122, 26, 0.3);
}

.btn-primary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border-glass);
  color: var(--text-main);
  font-weight: 600;
  font-size: 14px;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
  cursor: pointer;
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.12);
  border-color: rgba(255,255,255,0.2);
  box-shadow: 0 4px 16px rgba(0,0,0,0.3);
}

.btn-secondary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.breadcrumb {
  max-width: 1200px;
  margin: 12px auto 0;
  padding: 0 24px;
  font-size: 13px;
  color: var(--text-secondary);
}

.breadcrumb a {
  color: var(--text-secondary);
}

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

.breadcrumb .current {
  color: var(--text-main);
  font-weight: 500;
}

.breadcrumb .sep {
  margin: 0 8px;
  color: var(--text-muted);
}

@media (max-width: 900px) {
  .nav-panel {
    flex-wrap: wrap;
    gap: 12px;
    padding: 12px 16px;
  }

  .nav-toggle {
    display: flex;
    margin-left: auto;
  }

  .nav-links {
    display: none;
    width: 100%;
    flex-direction: column;
    gap: 6px;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-link {
    width: 100%;
  }

  .nav-cta {
    margin-left: auto;
  }
}

@media (max-width: 520px) {
  .nav-panel {
    padding: 10px 12px;
  }

  .logo-text {
    font-size: 14px;
  }

  .nav-cta {
    font-size: 13px;
    padding: 8px 14px;
  }
}

/* ===== 面包屑 ===== */
.breadcrumb-wrap {
  max-width: 1200px;
  margin: 16px auto 0;
  padding: 0 24px;
  font-size: 13px;
  color: var(--text-secondary);
}

.breadcrumb-wrap a {
  color: var(--text-secondary);
}

.breadcrumb-wrap a:hover {
  color: var(--accent);
}

.breadcrumb-wrap .sep {
  margin: 0 8px;
  color: var(--text-muted);
}

.breadcrumb-wrap .current {
  color: var(--text-main);
  font-weight: 600;
}

@media (max-width: 640px) {
  .breadcrumb-wrap {
    padding: 0 16px;
    font-size: 12px;
  }
}

/* ===== Hero ===== */
.category-hero {
  position: relative;
  padding: 88px 0 64px;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(6, 13, 24, 0.92) 0%, rgba(11, 21, 36, 0.82) 50%, rgba(14, 58, 140, 0.35) 100%),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
}

.category-hero::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(41, 230, 255, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(41, 230, 255, 0.1);
  border: 1px solid rgba(41, 230, 255, 0.3);
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 20px;
}

.hero-badge .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.category-hero h1 {
  font-size: 46px;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: #fff;
  margin-bottom: 16px;
}

.category-hero h1 span {
  color: var(--accent);
}

.category-hero p {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 640px;
  line-height: 1.8;
  margin-bottom: 32px;
}

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

@media (max-width: 640px) {
  .category-hero {
    padding: 56px 0 40px;
  }

  .category-hero h1 {
    font-size: 30px;
  }

  .category-hero p {
    font-size: 15px;
  }

  .hero-inner {
    padding: 0 16px;
  }
}

/* ===== 活动卡片网格 ===== */
.activity-section {
  padding: 80px 0;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 40px;
  flex-wrap: wrap;
  gap: 16px;
}

.section-header h2 {
  font-size: 32px;
  font-weight: 700;
  color: #fff;
  line-height: 1.3;
}

.section-header .sub {
  font-size: 15px;
  color: var(--text-secondary);
  max-width: 560px;
}

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

.activity-card {
  background: rgba(255,255,255,0.05);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all 0.2s ease;
  position: relative;
  display: flex;
  flex-direction: column;
}

.activity-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  background: var(--bg-card);
}

.activity-card .card-img {
  position: relative;
  width: 100%;
  aspect-ratio: 16/9;
  overflow: hidden;
}

.activity-card .card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.activity-card:hover .card-img img {
  transform: scale(1.04);
}

.card-status {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.03em;
  z-index: 2;
}

.card-status.live {
  background: rgba(46, 230, 168, 0.2);
  color: var(--success);
  border: 1px solid rgba(46, 230, 168, 0.4);
}

.card-status.ended {
  background: rgba(92, 113, 137, 0.2);
  color: var(--text-muted);
  border: 1px solid rgba(92, 113, 137, 0.4);
}

.card-body {
  padding: 20px 24px 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}

.card-body h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.4;
}

.card-body .time {
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

.card-body .time i {
  color: var(--accent);
}

.card-body .desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  flex: 1;
}

.card-body .reward {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--warning);
  background: rgba(255, 197, 66, 0.1);
  border: 1px solid rgba(255, 197, 66, 0.2);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  margin-top: 4px;
}

.card-body .btn-card {
  margin-top: 12px;
  align-self: flex-start;
}

.btn-card {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 6px 0;
  transition: gap 0.2s ease;
}

.btn-card:hover {
  gap: 10px;
  color: #fff;
}

@media (max-width: 1024px) {
  .activity-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .activity-grid {
    grid-template-columns: 1fr;
  }

  .section-header h2 {
    font-size: 24px;
  }

  .section-header {
    margin-bottom: 24px;
  }
}

/* ===== 数据统计 ===== */
.stats-section {
  padding: 30px 0;
}

.stats-panel {
  background: var(--bg-secondary);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 40px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
  overflow: hidden;
}

.stats-panel::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

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

.stat-item .num {
  font-family: "Inter", "DIN Alternate", sans-serif;
  font-size: 42px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.2;
  text-shadow: 0 0 20px rgba(41, 230, 255, 0.2);
}

.stat-item .label {
  font-size: 14px;
  color: var(--text-secondary);
  margin-top: 6px;
}

@media (max-width: 768px) {
  .stats-panel {
    grid-template-columns: repeat(2, 1fr);
    padding: 24px;
  }

  .stat-item .num {
    font-size: 32px;
  }
}

/* ===== 参与规则 ===== */
.rules-section {
  padding: 40px 0 80px;
}

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

.rule-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 28px;
  position: relative;
  transition: all 0.2s ease;
}

.rule-card:hover {
  background: rgba(255,255,255,0.07);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.3);
}

.rule-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(27, 107, 255, 0.3), rgba(27, 107, 255, 0.1));
  border: 1px solid rgba(27, 107, 255, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--accent);
  margin-bottom: 16px;
}

.rule-card h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
}

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

@media (max-width: 768px) {
  .rules-grid {
    grid-template-columns: 1fr;
  }

  .rules-section {
    padding: 24px 0 56px;
  }
}

/* ===== 活动日历提示 ===== */
.notice-bar {
  background: linear-gradient(135deg, rgba(255, 122, 26, 0.12), rgba(255, 122, 26, 0.04));
  border: 1px solid rgba(255, 122, 26, 0.25);
  border-radius: var(--radius-lg);
  padding: 20px 28px;
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 40px;
}

.notice-bar i {
  font-size: 24px;
  color: var(--cta);
  flex-shrink: 0;
}

.notice-bar p {
  font-size: 14px;
  color: var(--text-secondary);
}

.notice-bar strong {
  color: var(--text-main);
}

@media (max-width: 640px) {
  .notice-bar {
    flex-direction: column;
    text-align: center;
    padding: 16px 20px;
  }
}

/* ===== CTA 区块 ===== */
.cta-panel {
  padding: 80px 0;
}

.cta-card {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--bg-secondary) 60%, var(--bg-dark) 100%);
  border: 1px solid rgba(27, 107, 255, 0.3);
  border-radius: var(--radius-lg);
  padding: 60px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-card::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(41, 230, 255, 0.06) 0%, transparent 50%);
  pointer-events: none;
}

.cta-card h2 {
  font-size: 32px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
}

.cta-card p {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto 28px;
}

.cta-card .btn-primary {
  font-size: 16px;
  padding: 14px 32px;
}

@media (max-width: 640px) {
  .cta-card {
    padding: 40px 20px;
  }

  .cta-card h2 {
    font-size: 24px;
  }

  .cta-panel {
    padding: 56px 0;
  }
}

/* ===== FAQ ===== */
.faq-section {
  padding: 40px 0 80px;
}

.faq-wrap {
  max-width: 780px;
  margin: 0 auto;
}

.accordion-item {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color 0.2s ease;
}

.accordion-item:hover {
  border-color: rgba(255,255,255,0.2);
}

.accordion-header {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 20px;
  background: transparent;
  color: var(--text-main);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  text-align: left;
  transition: background 0.2s ease;
}

.accordion-header:hover {
  background: rgba(255,255,255,0.04);
}

.accordion-header i {
  color: var(--accent);
  font-size: 14px;
  transition: transform 0.3s ease;
  flex-shrink: 0;
  margin-left: 16px;
}

.accordion-item.active .accordion-header i {
  transform: rotate(180deg);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.accordion-content-inner {
  padding: 0 20px 20px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
}

@media (max-width: 640px) {
  .accordion-header {
    font-size: 15px;
    padding: 16px;
  }

  .accordion-content-inner {
    padding: 0 16px 16px;
  }
}

/* ===== 相关分类入口 ===== */
.related-section {
  padding: 0 0 80px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.related-card {
  display: flex;
  align-items: center;
  gap: 20px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: all 0.2s ease;
}

.related-card:hover {
  background: rgba(255,255,255,0.07);
  border-color: rgba(27, 107, 255, 0.3);
  transform: translateY(-2px);
}

.related-card .icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(27, 107, 255, 0.3), rgba(27, 107, 255, 0.08));
  border: 1px solid rgba(27, 107, 255, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: var(--accent);
  flex-shrink: 0;
}

.related-card h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 4px;
}

.related-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.related-card .arrow {
  margin-left: auto;
  color: var(--text-muted);
  font-size: 18px;
  transition: transform 0.2s ease, color 0.2s ease;
}

.related-card:hover .arrow {
  transform: translateX(4px);
  color: var(--accent);
}

@media (max-width: 640px) {
  .related-grid {
    grid-template-columns: 1fr;
  }

  .related-card {
    flex-direction: column;
    text-align: center;
    gap: 12px;
  }

  .related-card .arrow {
    margin-left: 0;
  }
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-glass);
  padding: 64px 0 24px;
  margin-top: 40px;
}

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

.footer-brand .logo-text {
  font-size: 18px;
  display: inline-block;
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 14px;
  color: var(--text-secondary);
  max-width: 360px;
  line-height: 1.8;
}

.footer-links h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 16px;
}

.footer-links a {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-secondary);
  padding: 6px 0;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: var(--accent);
}

.footer-links a i {
  font-size: 10px;
  color: var(--text-muted);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: var(--text-muted);
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
    margin-bottom: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .site-footer {
    padding: 48px 0 20px;
  }
}

::selection {
  background: rgba(41, 230, 255, 0.3);
  color: #fff;
}

::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,0.15);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(255,255,255,0.25);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* roulang page: category2 */
:root {
      --color-primary: #1B6BFF;
      --color-primary-dark: #0E3A8C;
      --color-accent: #29E6FF;
      --color-orange: #FF7A1A;
      --color-orange-hover: #FF9A3D;
      --color-bg: #060D18;
      --color-bg-2: #0B1524;
      --color-bg-3: #101D30;
      --color-text: #E6EDF6;
      --color-text-2: #93A5BC;
      --color-text-3: #5C7189;
      --color-success: #2EE6A8;
      --color-warning: #FFC542;
      --color-border: rgba(255, 255, 255, 0.10);
      --radius-lg: 16px;
      --radius-md: 10px;
      --radius-sm: 8px;
      --shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
      --shadow-hover: 0 20px 50px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.06);
      --transition: 0.2s ease;
      --container-w: 1200px;
      --space-section: 96px;
      --space-section-mobile: 56px;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      background: var(--color-bg);
      color: var(--color-text);
      font-size: 16px;
      line-height: 1.8;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

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

    a {
      color: inherit;
      text-decoration: none;
      transition: color var(--transition), background var(--transition), border var(--transition), box-shadow var(--transition), transform var(--transition);
    }

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

    ul, ol {
      list-style: none;
    }

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

    .btn-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      background: var(--color-orange);
      color: #0B1524;
      font-weight: 700;
      font-size: 15px;
      padding: 14px 28px;
      border-radius: var(--radius-sm);
      border: 1px solid transparent;
      transition: all var(--transition);
      box-shadow: 0 4px 18px rgba(255, 122, 26, 0.25);
      line-height: 1.4;
      letter-spacing: 0.02em;
    }
    .btn-primary:hover {
      background: var(--color-orange-hover);
      box-shadow: 0 0 24px rgba(255, 122, 26, 0.5);
      transform: translateY(-2px);
    }
    .btn-primary:active {
      transform: translateY(1px);
      box-shadow: 0 2px 10px rgba(255, 122, 26, 0.3);
    }
    .btn-primary:focus-visible {
      outline: 2px solid var(--color-accent);
      outline-offset: 3px;
    }

    .btn-secondary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      background: rgba(255, 255, 255, 0.06);
      color: #fff;
      font-weight: 600;
      font-size: 15px;
      padding: 14px 28px;
      border-radius: var(--radius-sm);
      border: 1px solid var(--color-border);
      transition: all var(--transition);
      backdrop-filter: blur(8px);
      line-height: 1.4;
    }
    .btn-secondary:hover {
      background: rgba(255, 255, 255, 0.12);
      border-color: rgba(255, 255, 255, 0.22);
      transform: translateY(-2px);
      box-shadow: var(--shadow);
    }
    .btn-secondary:active {
      transform: translateY(1px);
    }
    .btn-secondary:focus-visible {
      outline: 2px solid var(--color-accent);
      outline-offset: 3px;
    }

    .btn-large {
      padding: 18px 42px;
      font-size: 17px;
      border-radius: 12px;
    }

    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      background: rgba(27, 107, 255, 0.15);
      border: 1px solid rgba(27, 107, 255, 0.35);
      color: var(--color-accent);
      font-size: 12px;
      font-weight: 600;
      padding: 4px 14px;
      border-radius: 999px;
      letter-spacing: 0.04em;
      text-transform: uppercase;
      margin-bottom: 12px;
    }

    .section-head {
      text-align: center;
      margin-bottom: 48px;
    }
    .section-head h2 {
      font-size: 32px;
      font-weight: 800;
      line-height: 1.3;
      letter-spacing: -0.01em;
      color: var(--color-text);
      margin-bottom: 10px;
    }
    .section-head p {
      color: var(--color-text-2);
      font-size: 15px;
      max-width: 560px;
      margin: 0 auto;
    }

    /* ========== 导航 ========== */
    .main-nav {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 1000;
      padding: 14px 0;
      transition: background var(--transition), box-shadow var(--transition);
    }
    .main-nav.scrolled {
      background: rgba(6, 13, 24, 0.92);
      box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
    }
    .nav-panel {
      display: flex;
      align-items: center;
      justify-content: space-between;
      background: rgba(13, 23, 38, 0.85);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-lg);
      padding: 12px 20px;
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.08);
      max-width: var(--container-w);
      margin: 0 auto;
    }
    .nav-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }
    .logo-icon {
      display: flex;
      align-items: center;
      justify-content: center;
      width: 38px;
      height: 38px;
      background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
      border-radius: 10px;
      color: #fff;
      font-size: 18px;
      font-weight: 800;
      box-shadow: 0 0 20px rgba(27, 107, 255, 0.4);
    }
    .logo-text {
      font-size: 15px;
      font-weight: 800;
      line-height: 1.3;
      color: var(--color-text);
      letter-spacing: 0.02em;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 6px;
      flex: 1;
      justify-content: center;
      padding: 0 16px;
    }
    .nav-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 8px 14px;
      border-radius: var(--radius-md);
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid transparent;
      color: var(--color-text-2);
      font-size: 14px;
      font-weight: 500;
      transition: all var(--transition);
      white-space: nowrap;
    }
    .nav-link i {
      font-size: 13px;
      color: var(--color-text-3);
      transition: color var(--transition);
    }
    .nav-link:hover {
      background: rgba(27, 107, 255, 0.18);
      color: #fff;
      border-color: rgba(27, 107, 255, 0.3);
    }
    .nav-link:hover i {
      color: var(--color-accent);
    }
    .nav-link.active {
      background: rgba(27, 107, 255, 0.22);
      color: #fff;
      border-color: rgba(27, 107, 255, 0.45);
      font-weight: 600;
    }
    .nav-link.active i {
      color: var(--color-accent);
    }
    .nav-cta {
      flex-shrink: 0;
      padding: 10px 20px;
      font-size: 14px;
      border-radius: var(--radius-sm);
    }
    .nav-toggle {
      display: none;
      flex-direction: column;
      gap: 5px;
      padding: 8px;
      border-radius: 8px;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid var(--color-border);
    }
    .nav-toggle span {
      width: 18px;
      height: 2px;
      background: #fff;
      border-radius: 2px;
      transition: all var(--transition);
    }
    .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);
    }

    /* ========== 面包屑 ========== */
    .breadcrumb {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      color: var(--color-text-2);
      margin-bottom: 20px;
    }
    .breadcrumb a {
      color: var(--color-text-3);
    }
    .breadcrumb a:hover {
      color: var(--color-accent);
    }
    .breadcrumb .sep {
      color: var(--color-text-3);
    }
    .breadcrumb .current {
      color: var(--color-text);
      font-weight: 600;
    }

    /* ========== Hero ========== */
    .category-hero {
      position: relative;
      padding: 160px 0 80px;
      background: linear-gradient(135deg, rgba(6, 13, 24, 0.93) 0%, rgba(11, 21, 36, 0.85) 50%, rgba(16, 29, 48, 0.88) 100%), url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      overflow: hidden;
      border-bottom: 1px solid var(--color-border);
    }
    .category-hero::before {
      content: '';
      position: absolute;
      top: -120px;
      right: -80px;
      width: 480px;
      height: 480px;
      background: radial-gradient(circle, rgba(27, 107, 255, 0.25) 0%, transparent 70%);
      pointer-events: none;
    }
    .category-hero .hero-inner {
      position: relative;
      z-index: 2;
    }
    .category-hero h1 {
      font-size: 48px;
      font-weight: 800;
      line-height: 1.25;
      letter-spacing: -0.01em;
      margin-bottom: 16px;
      color: #fff;
      text-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
    }
    .category-hero h1 span {
      color: var(--color-accent);
    }
    .hero-sub {
      font-size: 18px;
      color: var(--color-text-2);
      max-width: 560px;
      line-height: 1.8;
      margin-bottom: 30px;
    }
    .hero-actions {
      display: flex;
      gap: 14px;
      flex-wrap: wrap;
      margin-bottom: 40px;
    }
    .hero-stats {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
      max-width: 560px;
    }
    .stat-item {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      padding: 16px 20px;
      text-align: center;
      backdrop-filter: blur(12px);
      transition: all var(--transition);
    }
    .stat-item:hover {
      background: rgba(255, 255, 255, 0.08);
      border-color: rgba(41, 230, 255, 0.3);
      transform: translateY(-2px);
    }
    .stat-num {
      display: block;
      font-family: "Inter", "DIN Alternate", sans-serif;
      font-size: 34px;
      font-weight: 800;
      color: var(--color-accent);
      line-height: 1.2;
      text-shadow: 0 0 20px rgba(41, 230, 255, 0.35);
    }
    .stat-label {
      font-size: 12px;
      color: var(--color-text-2);
      margin-top: 4px;
      display: block;
    }

    /* ========== 步骤卡片 ========== */
    .steps-section {
      padding: var(--space-section) 0;
      background: var(--color-bg);
    }
    .steps-list {
      display: flex;
      flex-direction: column;
      gap: 28px;
    }
    .step-card {
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 40px;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-lg);
      padding: 32px;
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      box-shadow: var(--shadow), inset 0 1px 0 rgba(255, 255, 255, 0.08);
      transition: all var(--transition);
      align-items: center;
    }
    .step-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(255, 255, 255, 0.18);
    }
    .step-content {
      display: flex;
      flex-direction: column;
    }
    .step-num {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 44px;
      height: 44px;
      background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
      border-radius: 12px;
      color: #fff;
      font-family: "Inter", sans-serif;
      font-size: 16px;
      font-weight: 800;
      margin-bottom: 16px;
      box-shadow: 0 0 20px rgba(27, 107, 255, 0.3);
    }
    .step-content h3 {
      font-size: 22px;
      font-weight: 700;
      margin-bottom: 10px;
      color: #fff;
      line-height: 1.4;
    }
    .step-content p {
      color: var(--color-text-2);
      font-size: 15px;
      line-height: 1.8;
      margin-bottom: 16px;
    }
    .step-points {
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .step-points li {
      display: flex;
      align-items: center;
      gap: 8px;
      color: var(--color-text-2);
      font-size: 14px;
    }
    .step-points li::before {
      content: '✓';
      color: var(--color-success);
      font-weight: 700;
      margin-right: 4px;
    }
    .step-media {
      border-radius: 12px;
      overflow: hidden;
      position: relative;
      box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
    }
    .step-media img {
      width: 100%;
      height: 100%;
      min-height: 220px;
      object-fit: cover;
      transition: transform 0.35s ease;
    }
    .step-card:hover .step-media img {
      transform: scale(1.03);
    }
    .step-media::after {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent 60%, rgba(6, 13, 24, 0.4) 100%);
      pointer-events: none;
    }
    .step-media .media-tag {
      position: absolute;
      bottom: 14px;
      left: 14px;
      background: rgba(6, 13, 24, 0.75);
      border: 1px solid var(--color-border);
      color: var(--color-accent);
      font-size: 11px;
      font-weight: 600;
      padding: 4px 12px;
      border-radius: 999px;
      z-index: 2;
      backdrop-filter: blur(8px);
    }

    /* ========== 场景板块 ========== */
    .scenario-section {
      padding: var(--space-section) 0;
      background: var(--color-bg-2);
      border-top: 1px solid var(--color-border);
      border-bottom: 1px solid var(--color-border);
    }
    .scenario-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }
    .scenario-card {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-lg);
      padding: 28px;
      backdrop-filter: blur(12px);
      transition: all var(--transition);
    }
    .scenario-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(41, 230, 255, 0.25);
      background: rgba(255, 255, 255, 0.06);
    }
    .scenario-card .scenario-icon {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 48px;
      height: 48px;
      background: rgba(27, 107, 255, 0.15);
      border: 1px solid rgba(27, 107, 255, 0.3);
      border-radius: 12px;
      color: var(--color-accent);
      font-size: 20px;
      margin-bottom: 16px;
    }
    .scenario-card h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 8px;
      color: #fff;
    }
    .scenario-card p {
      color: var(--color-text-2);
      font-size: 14px;
      line-height: 1.7;
    }

    /* ========== FAQ ========== */
    .faq-section {
      padding: var(--space-section) 0;
      background: var(--color-bg);
    }
    .faq-wrap {
      max-width: 780px;
      margin: 0 auto;
    }
    .accordion {
      display: flex;
      flex-direction: column;
      gap: 14px;
    }
    .accordion-item {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: all var(--transition);
    }
    .accordion-item:hover {
      border-color: rgba(255, 255, 255, 0.2);
      background: rgba(255, 255, 255, 0.06);
    }
    .accordion-item.is-active {
      border-color: rgba(27, 107, 255, 0.4);
      box-shadow: 0 0 20px rgba(27, 107, 255, 0.08);
    }
    .accordion-title {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 18px 22px;
      color: var(--color-text);
      font-size: 16px;
      font-weight: 600;
      cursor: pointer;
      transition: color var(--transition);
      gap: 16px;
    }
    .accordion-title::after {
      content: '+';
      font-size: 22px;
      color: var(--color-accent);
      font-weight: 400;
      transition: transform var(--transition);
      flex-shrink: 0;
      line-height: 1;
    }
    .accordion-item.is-active .accordion-title::after {
      content: '−';
    }
    .accordion-item.is-active .accordion-title {
      color: var(--color-accent);
    }
    .accordion-content {
      padding: 0 22px 18px;
      color: var(--color-text-2);
      font-size: 14px;
      line-height: 1.8;
    }
    .accordion-content p {
      padding-top: 4px;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
    }

    /* ========== 相关分类 ========== */
    .related-section {
      padding: var(--space-section) 0;
      background: var(--color-bg-2);
      border-top: 1px solid var(--color-border);
    }
    .related-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
      max-width: 800px;
      margin: 0 auto;
    }
    .related-card {
      display: block;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-lg);
      padding: 30px;
      backdrop-filter: blur(12px);
      transition: all var(--transition);
      position: relative;
      overflow: hidden;
    }
    .related-card::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 3px;
      background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
      opacity: 0;
      transition: opacity var(--transition);
    }
    .related-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(255, 255, 255, 0.2);
    }
    .related-card:hover::before {
      opacity: 1;
    }
    .related-card .related-icon {
      width: 48px;
      height: 48px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 12px;
      background: rgba(27, 107, 255, 0.15);
      color: var(--color-accent);
      font-size: 20px;
      margin-bottom: 14px;
    }
    .related-card h3 {
      font-size: 20px;
      font-weight: 700;
      margin-bottom: 8px;
      color: #fff;
    }
    .related-card p {
      color: var(--color-text-2);
      font-size: 14px;
      line-height: 1.7;
      margin-bottom: 16px;
    }
    .related-arrow {
      color: var(--color-accent);
      font-size: 14px;
      font-weight: 600;
      transition: letter-spacing var(--transition);
    }
    .related-card:hover .related-arrow {
      letter-spacing: 0.08em;
    }

    /* ========== CTA ========== */
    .cta-section {
      position: relative;
      padding: 80px 0;
      background: linear-gradient(135deg, rgba(6, 13, 24, 0.9) 0%, rgba(11, 21, 36, 0.85) 100%), url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
      text-align: center;
      border-top: 1px solid var(--color-border);
    }
    .cta-section h2 {
      font-size: 32px;
      font-weight: 800;
      margin-bottom: 12px;
      color: #fff;
    }
    .cta-section p {
      color: var(--color-text-2);
      font-size: 16px;
      margin-bottom: 28px;
    }

    /* ========== 页脚 ========== */
    .site-footer {
      padding: 64px 0 0;
      background: var(--color-bg-2);
      border-top: 1px solid var(--color-border);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 48px;
      padding-bottom: 40px;
    }
    .footer-brand .logo-text {
      display: block;
      font-size: 20px;
      margin-bottom: 12px;
    }
    .footer-brand p {
      color: var(--color-text-2);
      font-size: 14px;
      line-height: 1.8;
      max-width: 360px;
    }
    .footer-links h4 {
      font-size: 16px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 16px;
    }
    .footer-links a {
      display: flex;
      align-items: center;
      gap: 8px;
      color: var(--color-text-2);
      font-size: 14px;
      padding: 6px 0;
      transition: all var(--transition);
    }
    .footer-links a i {
      font-size: 10px;
      color: var(--color-text-3);
      transition: color var(--transition);
    }
    .footer-links a:hover {
      color: var(--color-accent);
      transform: translateX(4px);
    }
    .footer-links a:hover i {
      color: var(--color-accent);
    }
    .footer-bottom {
      padding: 20px 0;
      border-top: 1px solid var(--color-border);
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 12px;
      flex-wrap: wrap;
      font-size: 13px;
      color: var(--color-text-3);
    }

    /* ========== 响应式 ========== */
    @media screen and (max-width: 1024px) {
      .step-card {
        grid-template-columns: 1fr;
        gap: 24px;
      }
      .step-media img {
        min-height: 200px;
      }
      .scenario-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 16px;
      }
      .scenario-card {
        padding: 20px;
      }
    }

    @media screen and (max-width: 900px) {
      .nav-toggle {
        display: flex;
      }
      .nav-links {
        display: none;
        position: absolute;
        top: calc(100% + 10px);
        left: 24px;
        right: 24px;
        background: rgba(11, 21, 36, 0.98);
        border: 1px solid var(--color-border);
        border-radius: 12px;
        padding: 14px;
        flex-direction: column;
        gap: 8px;
        box-shadow: var(--shadow);
        backdrop-filter: blur(20px);
      }
      .nav-links.open {
        display: flex;
      }
      .nav-link {
        width: 100%;
        justify-content: flex-start;
        padding: 12px 16px;
      }
      .nav-cta {
        padding: 10px 14px;
        font-size: 13px;
      }
      .hero-stats {
        grid-template-columns: repeat(3, 1fr);
      }
    }

    @media screen and (max-width: 640px) {
      .container {
        padding: 0 16px;
      }
      .category-hero {
        padding: 130px 0 50px;
      }
      .category-hero h1 {
        font-size: 30px;
      }
      .hero-sub {
        font-size: 15px;
      }
      .hero-actions {
        flex-direction: column;
        align-items: stretch;
      }
      .hero-actions .btn-primary,
      .hero-actions .btn-secondary {
        width: 100%;
      }
      .hero-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: 10px;
      }
      .stat-item {
        padding: 12px 10px;
      }
      .stat-num {
        font-size: 24px;
      }
      .stat-label {
        font-size: 11px;
      }
      .section-head h2 {
        font-size: 24px;
      }
      .steps-section,
      .scenario-section,
      .faq-section,
      .related-section {
        padding: var(--space-section-mobile) 0;
      }
      .step-card {
        padding: 20px;
      }
      .step-content h3 {
        font-size: 18px;
      }
      .step-media img {
        min-height: 160px;
      }
      .scenario-grid {
        grid-template-columns: 1fr;
      }
      .related-grid {
        grid-template-columns: 1fr;
      }
      .cta-section {
        padding: 56px 0;
      }
      .cta-section h2 {
        font-size: 24px;
      }
      .cta-section .btn-primary {
        width: 100%;
        max-width: 320px;
      }
      .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
      }
      .footer-bottom {
        flex-direction: column;
        text-align: center;
      }
      .nav-panel {
        padding: 10px 14px;
      }
      .logo-text {
        font-size: 13px;
      }
      .logo-icon {
        width: 32px;
        height: 32px;
        font-size: 15px;
      }
    }

    @media screen and (max-width: 360px) {
      .stat-num {
        font-size: 20px;
      }
      .stat-label {
        font-size: 10px;
      }
      .category-hero h1 {
        font-size: 26px;
      }
    }