/* roulang page: index */
:root {
  --primary: #00d4aa;
  --primary-dark: #00b894;
  --primary-light: #5eecd0;
  --accent: #f0b429;
  --accent-dark: #d99f1f;
  --bg-dark: #0b1120;
  --bg-darker: #070d18;
  --bg-card: #111c30;
  --bg-card-hover: #17263f;
  --text-light: #e8edf5;
  --text-muted: #8ea0bb;
  --border: #1e2a44;
  --border-light: #2a3a5c;
  --radius: 14px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
  --shadow-hover: 0 18px 48px rgba(0, 0, 0, 0.5);
  --transition: all 0.3s ease;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

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

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

body {
  font-family: var(--font-sans);
  background: var(--bg-dark);
  color: var(--text-light);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

ul,
ol {
  list-style: none;
}

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

button {
  cursor: pointer;
}

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

.section {
  padding: 96px 0;
}

.section-alt {
  background: var(--bg-darker);
}

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 56px;
}

.eyebrow {
  display: inline-block;
  padding: 6px 18px;
  border-radius: 30px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  background: rgba(0, 212, 170, 0.12);
  color: var(--primary);
  border: 1px solid rgba(0, 212, 170, 0.25);
  margin-bottom: 16px;
}

.section-head h2 {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 800;
  line-height: 1.25;
  color: var(--text-light);
  margin-bottom: 16px;
}

.section-head p {
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.7;
}

/* ===== Header / Nav ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(11, 17, 32, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(30, 42, 68, 0.8);
  transition: var(--transition);
}

.site-header.scrolled {
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  background: rgba(11, 17, 32, 0.98);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: 72px;
  padding: 0 24px;
  max-width: 1280px;
  margin: 0 auto;
}

.nav-left,
.nav-right {
  flex: 1;
  display: flex;
  gap: 4px;
  align-items: center;
}

.nav-left {
  justify-content: flex-end;
}

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

.nav-link {
  padding: 8px 16px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-muted);
  border-radius: 8px;
  transition: var(--transition);
  position: relative;
}

.nav-link:hover {
  color: var(--text-light);
  background: rgba(255, 255, 255, 0.06);
}

.nav-link.active {
  color: var(--primary);
  background: rgba(0, 212, 170, 0.1);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 3px;
  border-radius: 3px;
  background: var(--primary);
}

.site-logo {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-light);
  white-space: nowrap;
  letter-spacing: 0.5px;
  padding: 8px 8px;
  transition: var(--transition);
}

.site-logo:hover {
  color: var(--primary);
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-light);
  border-radius: 2px;
  transition: var(--transition);
}

.mobile-menu {
  display: none;
  padding: 0;
  background: var(--bg-dark);
  border-top: 1px solid var(--border);
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.mobile-menu.open {
  max-height: 300px;
  border-bottom: 1px solid var(--border);
}

.mobile-menu a {
  display: block;
  padding: 14px 24px;
  color: var(--text-light);
  font-weight: 600;
  border-bottom: 1px solid rgba(30, 42, 68, 0.4);
}

.mobile-menu a:hover,
.mobile-menu a.active {
  background: rgba(0, 212, 170, 0.08);
  color: var(--primary);
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 140px 0 80px;
  overflow: hidden;
  background: var(--bg-darker);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  z-index: 0;
  animation: heroZoom 20s ease-in-out infinite alternate;
}

@keyframes heroZoom {
  0% {
    transform: scale(1);
  }
  100% {
    transform: scale(1.08);
  }
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(7, 13, 24, 0.95) 0%, rgba(11, 17, 32, 0.85) 50%, rgba(11, 17, 32, 0.6) 100%);
  z-index: 1;
}

.hero-container {
  position: relative;
  z-index: 2;
  text-align: center;
}

.hero-badge {
  display: inline-block;
  padding: 8px 22px;
  border-radius: 40px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 1px;
  background: rgba(0, 212, 170, 0.15);
  color: var(--primary);
  border: 1px solid rgba(0, 212, 170, 0.3);
  margin-bottom: 28px;
  backdrop-filter: blur(8px);
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 900;
  line-height: 1.15;
  color: #fff;
  margin-bottom: 20px;
  letter-spacing: 1px;
}

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

.hero-lead {
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto 36px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 72px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 700;
  transition: var(--transition);
  border: 2px solid transparent;
}

.btn i {
  font-size: 0.9em;
}

.btn-primary {
  background: var(--primary);
  color: #0b1120;
  box-shadow: 0 8px 24px rgba(0, 212, 170, 0.3);
}

.btn-primary:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(0, 212, 170, 0.4);
  color: #0b1120;
}

.btn-outline {
  background: transparent;
  color: var(--text-light);
  border-color: rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  max-width: 880px;
  margin: 0 auto;
  padding: 28px 24px;
  border-radius: var(--radius-lg);
  background: rgba(17, 28, 48, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(12px);
}

.stat-block {
  text-align: center;
  padding: 12px;
}

.stat-num {
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--primary);
  display: block;
  line-height: 1.2;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  display: block;
  margin-top: 4px;
}

/* ===== About Section ===== */
.about-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.about-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 38px 28px;
  text-align: center;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.about-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0;
  transition: var(--transition);
}

.about-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-light);
  box-shadow: var(--shadow-hover);
}

.about-card:hover::before {
  opacity: 1;
}

.about-icon {
  width: 68px;
  height: 68px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  background: rgba(0, 212, 170, 0.12);
  color: var(--primary);
  font-size: 1.6rem;
}

.about-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-light);
  margin-bottom: 12px;
}

.about-card p {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ===== Category Cards ===== */
.category-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

.category-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  min-height: 320px;
  display: flex;
  align-items: flex-end;
  transition: var(--transition);
  border: 1px solid var(--border);
}

.category-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: var(--border-light);
}

.category-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.category-card:hover img {
  transform: scale(1.06);
}

.category-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(7, 13, 24, 0.95) 0%, rgba(7, 13, 24, 0.5) 50%, rgba(7, 13, 24, 0.2) 100%);
}

.category-content {
  position: relative;
  z-index: 2;
  padding: 32px;
  width: 100%;
}

.category-tag {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 20px;
  background: rgba(0, 212, 170, 0.2);
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 1px;
  margin-bottom: 12px;
}

.category-content h3 {
  font-size: 1.5rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 8px;
}

.category-content p {
  font-size: 0.92rem;
  color: rgba(232, 237, 245, 0.8);
  margin-bottom: 16px;
  line-height: 1.6;
}

.category-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary);
  font-weight: 700;
  font-size: 0.9rem;
}

.category-link i {
  transition: transform 0.3s ease;
}

.category-link:hover i {
  transform: translateX(5px);
}

/* ===== News List ===== */
.news-list {
  max-width: 960px;
  margin: 0 auto;
}

.news-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 22px 24px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-card);
  margin-bottom: 16px;
  transition: var(--transition);
}

.news-item:hover {
  border-color: var(--border-light);
  box-shadow: var(--shadow);
  transform: translateX(6px);
}

.news-index {
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--primary);
  min-width: 48px;
  text-align: center;
  background: rgba(0, 212, 170, 0.08);
  border-radius: 10px;
  padding: 4px 8px;
  line-height: 1.3;
}

.news-content {
  flex: 1;
  min-width: 0;
}

.news-content h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 4px;
  line-height: 1.45;
}

.news-content h3 a {
  color: var(--text-light);
}

.news-content h3 a:hover {
  color: var(--primary);
}

.news-content p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
  min-width: 110px;
}

.badge {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 20px;
  font-size: 0.78rem;
  font-weight: 600;
  background: rgba(0, 212, 170, 0.12);
  color: var(--primary);
  border: 1px solid rgba(0, 212, 170, 0.2);
}

.news-meta time {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.empty-tip {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-muted);
  font-size: 1rem;
  background: var(--bg-card);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
}

/* ===== Stats / HUD Panel ===== */
.stats-section {
  position: relative;
  padding: 100px 0;
  background: var(--bg-darker);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}

.stats-section::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(0, 212, 170, 0.2), transparent 70%);
  border-radius: 50%;
}

.stats-section::after {
  content: '';
  position: absolute;
  bottom: -80px;
  left: -40px;
  width: 180px;
  height: 180px;
  background: radial-gradient(circle, rgba(240, 180, 41, 0.15), transparent 70%);
  border-radius: 50%;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
  z-index: 1;
}

.hud-card {
  background: linear-gradient(145deg, rgba(17, 28, 48, 0.9), rgba(11, 17, 32, 0.9));
  border: 1px solid rgba(0, 212, 170, 0.2);
  border-radius: var(--radius-lg);
  padding: 36px 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
}

.hud-card::before {
  content: '';
  position: absolute;
  top: 12px;
  left: 12px;
  right: 12px;
  bottom: 12px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.04);
  pointer-events: none;
}

.hud-card:hover {
  border-color: rgba(0, 212, 170, 0.5);
  box-shadow: 0 0 30px rgba(0, 212, 170, 0.08);
  transform: translateY(-4px);
}

.hud-icon {
  font-size: 1.5rem;
  color: var(--accent);
  margin-bottom: 14px;
}

.hud-num {
  font-size: 2.6rem;
  font-weight: 900;
  color: var(--primary);
  line-height: 1.1;
  font-family: "SF Mono", "JetBrains Mono", monospace;
}

.hud-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 8px;
  letter-spacing: 1px;
}

/* ===== Featured Cards ===== */
.featured-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

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

.featured-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: var(--border-light);
}

.featured-media {
  position: relative;
  height: 180px;
  overflow: hidden;
}

.featured-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.featured-card:hover .featured-media img {
  transform: scale(1.06);
}

.featured-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 12px;
  border-radius: 20px;
  background: rgba(7, 13, 24, 0.85);
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 700;
  backdrop-filter: blur(4px);
}

.featured-body {
  padding: 22px;
}

.featured-body h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-light);
  line-height: 1.5;
  margin-bottom: 8px;
}

.featured-body p {
  font-size: 0.86rem;
  color: var(--text-muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ===== FAQ ===== */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 14px;
  background: var(--bg-card);
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: var(--border-light);
}

.faq-question {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-light);
  background: transparent;
  width: 100%;
  text-align: left;
  transition: var(--transition);
}

.faq-question i {
  color: var(--primary);
  font-size: 1rem;
  transition: transform 0.3s ease;
}

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

.faq-question:hover {
  background: rgba(0, 212, 170, 0.04);
}

.faq-answer {
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.8;
}

.faq-item.active .faq-answer {
  padding: 4px 24px 20px;
  max-height: 300px;
}

/* ===== CTA ===== */
.cta-section {
  position: relative;
  padding: 100px 0;
  overflow: hidden;
  background: var(--bg-darker);
}

.cta-card {
  position: relative;
  background: linear-gradient(135deg, rgba(0, 212, 170, 0.12), rgba(240, 180, 41, 0.08));
  border: 1px solid rgba(0, 212, 170, 0.3);
  border-radius: var(--radius-lg);
  padding: 56px 48px;
  text-align: center;
  overflow: hidden;
}

.cta-card::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -80px;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(0, 212, 170, 0.3), transparent 70%);
  border-radius: 50%;
}

.cta-card h2 {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 800;
  color: var(--text-light);
  margin-bottom: 12px;
}

.cta-card p {
  font-size: 1rem;
  color: var(--text-muted);
  margin-bottom: 32px;
}

.subscribe-form {
  display: flex;
  gap: 12px;
  max-width: 480px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.subscribe-form input {
  flex: 1;
  padding: 14px 20px;
  border-radius: 10px;
  background: rgba(7, 13, 24, 0.8);
  border: 1px solid var(--border);
  color: var(--text-light);
  transition: var(--transition);
}

.subscribe-form input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0, 212, 170, 0.15);
}

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

.subscribe-form .btn {
  padding: 14px 28px;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--bg-darker);
  border-top: 1px solid var(--border);
  padding: 64px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(30, 42, 68, 0.6);
  margin-bottom: 24px;
}

.footer-brand .site-logo {
  font-size: 1.2rem;
  display: inline-block;
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 320px;
}

.footer-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-light);
  margin-bottom: 16px;
  letter-spacing: 1px;
}

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

.footer-links a {
  font-size: 0.88rem;
  color: var(--text-muted);
  transition: var(--transition);
}

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

.footer-bottom {
  text-align: center;
  font-size: 0.82rem;
  color: var(--text-muted);
  padding-top: 16px;
}

.footer-bottom a {
  color: var(--text-muted);
}

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

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .hero {
    min-height: 80vh;
    padding-top: 120px;
  }

  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    max-width: 640px;
  }

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

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
}

@media (max-width: 768px) {
  .header-inner {
    height: 64px;
  }

  .nav-left,
  .nav-right {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .site-logo {
    font-size: 1.05rem;
    margin: 0 auto;
  }

  .section {
    padding: 64px 0;
  }

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

  .about-cards {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .category-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .category-card {
    min-height: 240px;
  }

  .news-item {
    flex-direction: column;
    gap: 12px;
    padding: 18px;
  }

  .news-index {
    display: none;
  }

  .news-meta {
    flex-direction: row;
    justify-content: flex-start;
    min-width: auto;
  }

  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .hud-card {
    padding: 24px 16px;
  }

  .featured-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .cta-card {
    padding: 36px 24px;
  }

  .subscribe-form {
    flex-direction: column;
  }

  .subscribe-form .btn {
    width: 100%;
    justify-content: center;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .mobile-menu {
    display: block;
  }

  .hero {
    min-height: auto;
    padding: 110px 0 60px;
  }

  .hero-actions {
    margin-bottom: 48px;
  }

  .hero-stats {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    padding: 20px 16px;
  }

  .stat-num {
    font-size: 1.8rem;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 18px;
  }

  .section {
    padding: 48px 0;
  }

  .section-head h2 {
    font-size: 1.5rem;
  }

  .hero h1 {
    font-size: 1.8rem;
  }

  .hero-lead {
    font-size: 0.95rem;
  }

  .btn {
    padding: 12px 24px;
    font-size: 0.9rem;
  }

  .hero-actions {
    gap: 12px;
  }

  .hero-stats {
    grid-template-columns: 1fr 1fr;
    border-radius: 16px;
  }

  .stat-num {
    font-size: 1.5rem;
  }

  .stat-label {
    font-size: 0.75rem;
  }

  .about-card {
    padding: 28px 20px;
  }

  .category-content {
    padding: 22px;
  }

  .category-content h3 {
    font-size: 1.2rem;
  }

  .news-item {
    padding: 16px;
  }

  .hud-num {
    font-size: 2rem;
  }

  .faq-question {
    font-size: 0.9rem;
    padding: 16px 18px;
  }

  .faq-answer {
    font-size: 0.85rem;
  }

  .cta-card {
    padding: 28px 20px;
  }

  .subscribe-form input {
    font-size: 0.9rem;
  }

  .footer-grid {
    gap: 24px;
  }

  .footer-bottom {
    font-size: 0.75rem;
  }

  .site-logo {
    font-size: 0.95rem;
  }
}

/* roulang page: article */
:root {
  --color-primary: #0f172a;
  --color-primary-light: #1e293b;
  --color-accent: #c8a04a;
  --color-accent-light: #e3c165;
  --color-accent-dark: #a8873a;
  --color-bg: #f6f5f2;
  --color-surface: #ffffff;
  --color-surface-dark: #111a2e;
  --color-text: #1e293b;
  --color-text-weak: #64748b;
  --color-text-light: #94a3b8;
  --color-border: #e6e1d9;
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 8px rgba(15,23,42,.07);
  --shadow: 0 10px 30px rgba(15,23,42,.1);
  --shadow-lg: 0 20px 50px rgba(15,23,42,.16);
  --transition: .3s cubic-bezier(.4,0,.2,1);
  --container-width: 1220px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; transition: color var(--transition); }
img { max-width: 100%; display: block; }
button, input, select, textarea { font: inherit; }
ul { list-style: none; }
h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--color-primary); }

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 28px;
}

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(15, 23, 42, .92);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(200, 160, 74, .25);
  box-shadow: 0 2px 20px rgba(15, 23, 42, .2);
}

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

.site-logo {
  font-size: 1.28rem;
  font-weight: 800;
  letter-spacing: .5px;
  color: #fff;
  white-space: nowrap;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, rgba(200,160,74,.2), rgba(200,160,74,.08));
  border: 1px solid rgba(200, 160, 74, .4);
  transition: all var(--transition);
}

.site-logo:hover {
  border-color: var(--color-accent);
  box-shadow: 0 0 20px rgba(200, 160, 74, .3);
}

.nav-left, .nav-right {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  border-radius: 30px;
  font-size: .95rem;
  font-weight: 600;
  color: #aebad0;
  transition: all var(--transition);
}

.nav-link:hover {
  color: #fff;
  background: rgba(255,255,255,.08);
}

.nav-link.active {
  color: #fff;
  background: rgba(200, 160, 74, .2);
  border: 1px solid rgba(200, 160, 74, .35);
}

.menu-toggle {
  display: none;
  background: transparent;
  border: none;
  color: #fff;
  font-size: 1.35rem;
  cursor: pointer;
  padding: 8px;
}

/* ===== Article Hero ===== */
.article-hero {
  position: relative;
  padding: 80px 0 70px;
  background-image: linear-gradient(120deg, rgba(15,23,42,.92), rgba(15,23,42,.72)), url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  color: #fff;
}

.article-hero::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, rgba(200,160,74,.25), transparent 70%);
  pointer-events: none;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 28px;
  font-size: .9rem;
  color: rgba(255,255,255,.75);
}

.breadcrumb a { color: rgba(255,255,255,.75); }
.breadcrumb a:hover { color: var(--color-accent); }
.breadcrumb-sep { opacity: .5; }
.breadcrumb-current { color: var(--color-accent-light); }

.article-hero-title {
  color: #fff;
  font-size: clamp(1.7rem, 4.5vw, 2.8rem);
  font-weight: 800;
  max-width: 900px;
  line-height: 1.3;
  letter-spacing: .5px;
}

.article-hero-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  margin-top: 22px;
}

.badge {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 30px;
  font-size: .8rem;
  font-weight: 700;
  background: rgba(200, 160, 74, .25);
  color: var(--color-accent-light);
  border: 1px solid rgba(200, 160, 74, .45);
}

.badge-dark {
  background: var(--color-primary);
  color: var(--color-accent-light);
  border-color: rgba(200,160,74,.4);
}

.meta-date {
  color: rgba(255,255,255,.8);
  font-size: .9rem;
  font-weight: 500;
}

.meta-date i { margin-right: 6px; color: var(--color-accent-light); }

/* ===== Article Body ===== */
.article-body-section {
  padding: 64px 0;
}

.article-main {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 48px;
  border: 1px solid rgba(255,255,255,.8);
}

.article-main h2 {
  font-size: 1.45rem;
  margin: 30px 0 14px;
  padding-left: 14px;
  border-left: 4px solid var(--color-accent);
  color: var(--color-primary);
}

.article-main h3 {
  font-size: 1.2rem;
  margin: 22px 0 10px;
  color: var(--color-primary);
}

.article-main p {
  margin-bottom: 16px;
  color: #334155;
  line-height: 1.9;
}

.article-main img {
  border-radius: var(--radius);
  margin: 20px 0;
  box-shadow: var(--shadow-sm);
}

.article-main ul,
.article-main ol {
  margin: 0 0 18px 22px;
  color: #334155;
}

.article-main li { margin-bottom: 8px; }
.article-main a { color: var(--color-accent-dark); text-decoration: underline; }
.article-main blockquote {
  margin: 24px 0;
  padding: 16px 22px;
  border-radius: var(--radius-sm);
  background: #f8f7f4;
  border-left: 4px solid var(--color-accent);
  color: #475569;
  font-style: italic;
}

.article-not-found {
  text-align: center;
  padding: 70px 30px;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.not-found-icon {
  font-size: 3.4rem;
  color: var(--color-accent);
  margin-bottom: 18px;
}

.article-not-found h2 {
  font-size: 1.6rem;
  color: var(--color-primary);
  margin-bottom: 14px;
}

.article-not-found p {
  color: var(--color-text-weak);
  max-width: 420px;
  margin: 0 auto 24px;
}

.primary-btn {
  display: inline-block;
  padding: 12px 32px;
  border-radius: 40px;
  background: var(--color-accent);
  color: var(--color-primary) !important;
  font-weight: 700;
  font-size: .95rem;
  border: 1px solid var(--color-accent);
  transition: all var(--transition);
  text-decoration: none !important;
}

.primary-btn:hover {
  background: var(--color-accent-light);
  border-color: var(--color-accent-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(200,160,74,.35);
}

/* Article Share */
.article-share {
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.article-share span {
  font-size: .9rem;
  font-weight: 600;
  color: var(--color-text-weak);
}

.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border-radius: 30px;
  background: #f8f7f4;
  border: 1px solid var(--color-border);
  font-size: .85rem;
  font-weight: 600;
  color: var(--color-text);
  transition: all var(--transition);
}

.share-btn:hover {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
  transform: translateY(-2px);
}

/* Sidebar */
.article-sidebar { display: flex; flex-direction: column; gap: 24px; }

.sidebar-card {
  background: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 28px;
  border: 1px solid rgba(255,255,255,.8);
}

.sidebar-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-border);
  position: relative;
}

.sidebar-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 48px;
  height: 2px;
  background: var(--color-accent);
}

.sidebar-list li {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px dashed var(--color-border);
  font-size: .9rem;
}

.sidebar-list li:last-child { border-bottom: none; }
.sidebar-list li span { color: var(--color-text-weak); }
.sidebar-list li strong { color: var(--color-primary); font-weight: 600; }

.sidebar-link {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--color-border);
  transition: all var(--transition);
}

.sidebar-link:last-child { border-bottom: none; }
.sidebar-link:hover { transform: translateX(4px); }

.sidebar-thumb {
  width: 64px;
  height: 64px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
}

.sidebar-link span {
  font-size: .88rem;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.5;
}

.sidebar-link:hover span { color: var(--color-accent-dark); }

/* ===== Section Common ===== */
.section-padding { padding: 76px 0; }

.section-heading {
  text-align: center;
  margin-bottom: 50px;
}

.section-title {
  font-size: clamp(1.6rem, 3.3vw, 2.2rem);
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 10px;
}

.section-subtitle {
  color: var(--color-text-weak);
  font-size: 1.02rem;
  max-width: 600px;
  margin: 0 auto;
}

.section-divider {
  width: 64px;
  height: 4px;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light));
  margin: 0 auto 18px;
}

/* ===== Related Cards ===== */
.related-section { background: var(--color-surface); padding: 76px 0; }

.related-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.related-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-8px);
  border-color: rgba(200,160,74,.4);
}

.card-img-wrap {
  display: block;
  overflow: hidden;
  position: relative;
  aspect-ratio: 16/10;
}

.card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .6s cubic-bezier(.4,0,.2,1);
}

.related-card:hover .card-img-wrap img { transform: scale(1.08); }

.card-body { padding: 26px; display: flex; flex-direction: column; flex-grow: 1; }

.card-body h3 {
  font-size: 1.1rem;
  margin: 12px 0 8px;
  line-height: 1.45;
}

.card-body h3 a { color: var(--color-primary); }
.card-body h3 a:hover { color: var(--color-accent-dark); }

.card-body p {
  color: var(--color-text-weak);
  font-size: .92rem;
  line-height: 1.7;
  flex-grow: 1;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: .9rem;
  color: var(--color-accent-dark);
  margin-top: 12px;
}

.text-link i { transition: transform var(--transition); }
.text-link:hover i { transform: translateX(6px); }

/* ===== CTA ===== */
.cta-section {
  position: relative;
  padding: 88px 0;
  background: linear-gradient(135deg, #0b1220 0%, #16223a 60%, #1d2c4a 100%);
  overflow: hidden;
}

.cta-section::before {
  content: "";
  position: absolute;
  top: -120px;
  right: -80px;
  width: 480px;
  height: 480px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(200,160,74,.22), transparent 70%);
}

.cta-section::after {
  content: "";
  position: absolute;
  bottom: -100px;
  left: -60px;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(200,160,74,.14), transparent 70%);
}

.cta-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 780px;
  margin: 0 auto;
}

.cta-inner h2 {
  color: #fff;
  font-size: clamp(1.7rem, 3.6vw, 2.5rem);
  font-weight: 800;
  margin-bottom: 16px;
}

.cta-inner p {
  color: rgba(255,255,255,.75);
  font-size: 1.05rem;
  margin-bottom: 32px;
}

.cta-btn {
  display: inline-block;
  padding: 15px 42px;
  border-radius: 50px;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
  color: var(--color-primary) !important;
  font-weight: 800;
  font-size: 1rem;
  border: none;
  transition: all var(--transition);
  box-shadow: 0 6px 24px rgba(200,160,74,.4);
}

.cta-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 40px rgba(200,160,74,.5);
}

.cta-meta {
  display: flex;
  justify-content: center;
  gap: 30px;
  margin-top: 30px;
  flex-wrap: wrap;
}

.cta-meta span {
  color: rgba(255,255,255,.6);
  font-size: .9rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.cta-meta i { color: var(--color-accent); }

/* ===== FAQ ===== */
.faq-section { padding: 76px 0; }

.faq-list { max-width: 820px; margin: 0 auto; }

.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: 16px;
  overflow: hidden;
  transition: all var(--transition);
}

.faq-item:hover { box-shadow: var(--shadow-sm); border-color: rgba(200,160,74,.35); }

.faq-item summary {
  cursor: pointer;
  padding: 22px 28px;
  font-weight: 700;
  color: var(--color-primary);
  font-size: 1.02rem;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

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

.faq-item summary::after {
  content: "\f078";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  color: var(--color-accent);
  transition: transform var(--transition);
  flex-shrink: 0;
}

.faq-item[open] summary::after { transform: rotate(180deg); }

.faq-item .faq-body {
  padding: 0 28px 22px;
  color: var(--color-text-weak);
  font-size: .94rem;
}

.faq-item .faq-body p { margin-bottom: 10px; }
.faq-item .faq-body p:last-child { margin-bottom: 0; }

/* ===== Footer ===== */
.site-footer {
  background: #0b1220;
  color: rgba(255,255,255,.72);
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 44px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}

.footer-brand .site-logo {
  display: inline-block;
  margin-bottom: 18px;
  font-size: 1.2rem;
}

.footer-brand p {
  color: rgba(255,255,255,.6);
  font-size: .92rem;
  line-height: 1.8;
  max-width: 380px;
}

.footer-title {
  color: #fff;
  font-size: .95rem;
  font-weight: 700;
  margin-bottom: 18px;
  letter-spacing: .5px;
}

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

.footer-links a {
  color: rgba(255,255,255,.6);
  font-size: .9rem;
  transition: all var(--transition);
}

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

.footer-bottom {
  padding: 22px 0;
  text-align: center;
  font-size: .84rem;
  color: rgba(255,255,255,.45);
}

.footer-bottom a { color: rgba(255,255,255,.6); }
.footer-bottom a:hover { color: var(--color-accent-light); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .container { padding: 0 24px; }
  .article-main { padding: 36px; }
}

@media (max-width: 768px) {
  .header-inner { height: 62px; }
  .menu-toggle { display: block; }
  .nav-left, .nav-right {
    position: fixed;
    top: 62px;
    left: 0;
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    background: rgba(15,23,42,.98);
    padding: 12px 20px 20px;
    transform: translateY(-140%);
    transition: transform .4s cubic-bezier(.4,0,.2,1);
    box-shadow: 0 12px 30px rgba(0,0,0,.2);
    z-index: 199;
  }
  .site-header.nav-open .nav-left,
  .site-header.nav-open .nav-right { transform: translateY(0); }
  .nav-right { top: auto; }
  .site-header.nav-open .nav-left { top: 62px; }
  .site-header.nav-open .nav-right { top: 62px; }
  .nav-left .nav-link, .nav-right .nav-link {
    width: 100%;
    padding: 12px 16px;
    font-size: 1rem;
  }
  .article-hero { padding: 52px 0 48px; }
  .article-body-section { padding: 40px 0; }
  .article-main { padding: 24px; border-radius: var(--radius); }
  .section-padding { padding: 52px 0; }
  .related-section { padding: 52px 0; }
  .faq-section { padding: 52px 0; }
  .cta-section { padding: 60px 0; }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 36px;
    padding-bottom: 32px;
  }
  .footer-bottom { padding: 18px 0; }
}

@media (max-width: 520px) {
  .container { padding: 0 18px; }
  .site-logo { font-size: 1.08rem; padding: 5px 10px; }
  .article-hero-title { font-size: 1.45rem; }
  .article-hero-meta { gap: 10px; }
  .article-main { padding: 20px; }
  .article-content p { font-size: .95rem; }
  .sidebar-card { padding: 20px; }
  .faq-item summary { padding: 18px 20px; font-size: .95rem; }
  .faq-item .faq-body { padding: 0 20px 18px; }
  .cta-inner p { font-size: .96rem; }
  .cta-meta { gap: 18px; flex-direction: column; }
  .footer-links a { font-size: .85rem; }
}

/* roulang page: category1 */
:root {
  --primary: #0b1a2b;
  --primary-light: #132a44;
  --accent: #ff6b35;
  --accent-2: #6c63ff;
  --gold: #d9b36a;
  --bg: #f4f6fa;
  --white: #ffffff;
  --text: #16202e;
  --muted: #5e6c7d;
  --border: #dfe5ee;
  --radius-sm: 10px;
  --radius: 18px;
  --radius-lg: 26px;
  --shadow-sm: 0 4px 14px rgba(11, 26, 43, 0.06);
  --shadow: 0 12px 30px rgba(11, 26, 43, 0.1);
  --shadow-lg: 0 24px 60px rgba(11, 26, 43, 0.16);
  --transition: 0.25s ease;
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
}
button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}
input {
  font-family: inherit;
}
ul {
  list-style: none;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ========== Header ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 999;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 4px 20px rgba(11, 26, 43, 0.04);
}
.header-inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  min-height: 76px;
  position: relative;
  padding: 0 24px;
}
.nav-left {
  justify-self: start;
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-right {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 10px 18px;
  font-size: 15px;
  font-weight: 600;
  color: var(--muted);
  border-radius: 100px;
  transition: all var(--transition);
  position: relative;
}
.nav-link:hover {
  color: var(--primary);
  background: rgba(11, 26, 43, 0.05);
}
.nav-link.active {
  color: var(--white);
  background: var(--primary);
  box-shadow: 0 6px 16px rgba(11, 26, 43, 0.18);
}
.site-logo {
  justify-self: center;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.3px;
  color: var(--primary);
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.site-logo::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 3px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: inline-block;
  transform: rotate(45deg);
}
.header-right {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 10px;
}
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--white);
  padding: 10px;
  transition: all var(--transition);
}
.nav-toggle:hover {
  border-color: var(--primary);
}
.nav-toggle .bar {
  height: 2px;
  border-radius: 2px;
  background: var(--primary);
  transition: all 0.3s ease;
}
.nav-toggle.is-active .bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle.is-active .bar:nth-child(2) {
  opacity: 0;
}
.nav-toggle.is-active .bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}
.mobile-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  padding: 18px 24px 24px;
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(-12px);
  transition: all 0.3s ease;
  pointer-events: none;
}
.mobile-menu.is-open {
  display: block;
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.mobile-nav-link {
  display: block;
  padding: 13px 16px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  border-radius: 12px;
  transition: all var(--transition);
}
.mobile-nav-link:hover {
  background: var(--bg);
}
.mobile-nav-link.active {
  color: var(--accent);
  background: rgba(255, 107, 53, 0.08);
}

/* ========== Hero / Banner ========== */
.category-hero {
  position: relative;
  padding: 120px 0 100px;
  background-size: cover;
  background-position: center center;
  background-color: var(--primary);
  color: var(--white);
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(11, 26, 43, 0.92) 0%, rgba(11, 26, 43, 0.75) 60%, rgba(19, 42, 68, 0.85) 100%);
}
.hero-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 820px;
  margin: 0 auto;
}
.breadcrumb {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.65);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 7px 16px;
  border-radius: 100px;
  margin-bottom: 28px;
  backdrop-filter: blur(6px);
}
.breadcrumb a {
  transition: color var(--transition);
}
.breadcrumb a:hover {
  color: var(--accent);
}
.breadcrumb i {
  font-size: 11px;
  opacity: 0.6;
}
.category-hero h1 {
  font-size: 56px;
  font-weight: 900;
  letter-spacing: 2px;
  line-height: 1.15;
  margin-bottom: 18px;
  background: linear-gradient(135deg, var(--white) 0%, rgba(255, 255, 255, 0.82) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-lead {
  font-size: 18px;
  color: rgba(255, 255, 255, 0.82);
  max-width: 640px;
  margin: 0 auto 34px;
  line-height: 1.8;
}
.hero-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: 100px;
  font-size: 15px;
  font-weight: 700;
  transition: all var(--transition);
  border: 1px solid transparent;
}
.btn-accent {
  background: var(--accent);
  color: var(--white);
  box-shadow: 0 10px 24px rgba(255, 107, 53, 0.35);
}
.btn-accent:hover {
  background: #f05420;
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(255, 107, 53, 0.42);
}
.btn-ghost {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.35);
  backdrop-filter: blur(4px);
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.6);
  transform: translateY(-2px);
}
.hero-data-bar {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-top: 48px;
  padding: 16px 28px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 16px;
  backdrop-filter: blur(8px);
  font-size: 14px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.85);
}
.hero-data-bar span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.hero-data-bar i {
  color: var(--accent);
}

/* ========== Section base ========== */
.section {
  padding: 90px 0;
}
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 18px;
  margin-bottom: 44px;
}
.section-head.center {
  text-align: center;
  flex-direction: column;
  align-items: center;
}
.section-head.light {
  color: var(--white);
}
.eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}
.section-head h2 {
  font-size: 36px;
  font-weight: 800;
  line-height: 1.25;
  color: var(--primary);
}
.section-head.light h2 {
  color: var(--white);
}
.section-desc {
  color: var(--muted);
  font-size: 15px;
  max-width: 420px;
}

/* ========== Chips ========== */
.chips-section {
  padding: 42px 0 10px;
}
.chips-wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}
.chip {
  display: inline-flex;
  align-items: center;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 600;
  color: var(--muted);
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 100px;
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
}
.chip:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}
.chip.chip-active {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
  box-shadow: 0 8px 18px rgba(11, 26, 43, 0.15);
}

/* ========== News Cards ========== */
.news-section {
  padding: 70px 0 90px;
}
.article-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  height: 100%;
}
.article-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
  border-color: rgba(11, 26, 43, 0.12);
}
.card-media {
  overflow: hidden;
  aspect-ratio: 16 / 9;
  position: relative;
  background: var(--primary-light);
}
.card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.article-card:hover .card-media img {
  transform: scale(1.04);
}
.card-body {
  padding: 22px 24px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
}
.card-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.card-tag {
  display: inline-flex;
  align-items: center;
  padding: 5px 14px;
  font-size: 12px;
  font-weight: 700;
  border-radius: 100px;
  letter-spacing: 0.5px;
}
.tag-orange {
  background: rgba(255, 107, 53, 0.1);
  color: #e04e18;
}
.tag-blue {
  background: rgba(108, 99, 255, 0.1);
  color: #4b42c8;
}
.tag-green {
  background: rgba(38, 178, 106, 0.1);
  color: #1e9b5c;
}
.tag-gold {
  background: rgba(217, 179, 106, 0.16);
  color: #a57c32;
}
.card-date {
  font-size: 12px;
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}
.card-title {
  font-size: 20px;
  font-weight: 800;
  line-height: 1.4;
  color: var(--primary);
  transition: color var(--transition);
}
.article-card:hover .card-title {
  color: var(--accent);
}
.card-excerpt {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
}
.card-more {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
  transition: gap var(--transition);
}
.card-more:hover {
  gap: 13px;
}
.article-card.is-featured .card-title {
  font-size: 24px;
}
.article-card.is-featured .card-body {
  padding: 28px 30px 30px;
}
.article-card.is-featured .card-excerpt {
  font-size: 15px;
}

/* ========== Metrics / HUD ========== */
.metrics-section {
  background: var(--primary);
  padding: 90px 0;
  position: relative;
  overflow: hidden;
}
.metrics-section::before {
  content: "";
  position: absolute;
  top: -200px;
  right: -120px;
  width: 460px;
  height: 460px;
  background: radial-gradient(circle, rgba(108, 99, 255, 0.22), transparent 65%);
  border-radius: 50%;
}
.metrics-section::after {
  content: "";
  position: absolute;
  bottom: -180px;
  left: -100px;
  width: 380px;
  height: 380px;
  background: radial-gradient(circle, rgba(255, 107, 53, 0.16), transparent 65%);
  border-radius: 50%;
}
.metrics-section .container {
  position: relative;
  z-index: 2;
}
.stat-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  padding: 32px 26px;
  height: 100%;
  backdrop-filter: blur(8px);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.stat-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  opacity: 0.8;
}
.stat-card:hover {
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-4px);
}
.stat-hud-top {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 18px;
}
.hud-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  display: block;
}
.hud-dot:nth-child(2) {
  background: var(--gold);
}
.hud-dot:nth-child(3) {
  background: var(--accent-2);
}
.hud-tag {
  margin-left: 8px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 2px;
  color: rgba(255, 255, 255, 0.5);
}
.stat-label {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 8px;
}
.stat-number {
  font-size: 46px;
  font-weight: 900;
  line-height: 1.2;
  color: var(--white);
  margin-bottom: 6px;
}
.stat-number span {
  color: var(--accent);
  font-size: 30px;
}
.stat-desc {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.55);
}

/* ========== Topics ========== */
.topics-section {
  padding: 90px 0;
  background: var(--white);
}
.topic-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 28px;
  height: 100%;
  background: var(--bg);
  transition: all var(--transition);
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  overflow: hidden;
}
.topic-card::after {
  content: attr(data-index);
  position: absolute;
  right: -8px;
  bottom: -30px;
  font-size: 120px;
  font-weight: 900;
  color: rgba(11, 26, 43, 0.05);
  line-height: 1;
  pointer-events: none;
  transition: color var(--transition);
}
.topic-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow);
  background: var(--white);
  border-color: rgba(255, 107, 53, 0.3);
}
.topic-icon {
  width: 50px;
  height: 50px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--white);
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 10px 22px rgba(108, 99, 255, 0.22);
  margin-bottom: 6px;
}
.topic-card h3 {
  font-size: 18px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.4;
}
.topic-card p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
  flex: 1;
}
.topic-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
  transition: gap var(--transition);
}
.topic-link:hover {
  gap: 12px;
}

/* ========== Update Section ========== */
.update-section {
  padding: 90px 0;
  background: var(--bg);
}
.update-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 30px;
  height: 100%;
  text-align: center;
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
}
.update-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.update-icon {
  width: 62px;
  height: 62px;
  margin: 0 auto 20px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: var(--white);
  background: var(--primary);
  box-shadow: 0 12px 24px rgba(11, 26, 43, 0.18);
}
.update-card h3 {
  font-size: 18px;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 10px;
}
.update-card p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
}

/* ========== FAQ ========== */
.faq-section {
  padding: 90px 0;
  background: var(--white);
}
.faq-wrap {
  max-width: 780px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.faq-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all var(--transition);
  overflow: hidden;
}
.faq-item:hover {
  border-color: rgba(255, 107, 53, 0.3);
  box-shadow: var(--shadow-sm);
}
.faq-item[open] {
  background: var(--white);
  box-shadow: var(--shadow);
}
.faq-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 26px;
  font-size: 16px;
  font-weight: 700;
  color: var(--primary);
  transition: color var(--transition);
}
.faq-item summary::-webkit-details-marker {
  display: none;
}
.faq-item summary:hover {
  color: var(--accent);
}
.faq-item summary i {
  font-size: 16px;
  color: var(--accent);
  transition: transform var(--transition);
  flex-shrink: 0;
}
.faq-item[open] summary i {
  transform: rotate(45deg);
}
.faq-item p {
  padding: 0 26px 24px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

/* ========== CTA ========== */
.cta-section {
  padding: 100px 0;
  background: linear-gradient(140deg, var(--primary) 0%, var(--primary-light) 100%);
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  top: -80px;
  right: 10%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(255, 107, 53, 0.25), transparent 70%);
  border-radius: 50%;
}
.cta-section::after {
  content: "";
  position: absolute;
  bottom: -60px;
  left: 8%;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, rgba(108, 99, 255, 0.2), transparent 70%);
  border-radius: 50%;
}
.cta-inner {
  position: relative;
  z-index: 2;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: 56px 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
  backdrop-filter: blur(12px);
}
.cta-content {
  max-width: 460px;
}
.cta-content h2 {
  font-size: 32px;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 12px;
  line-height: 1.3;
}
.cta-content p {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.75);
}
.cta-form {
  flex: 1;
  min-width: 300px;
  max-width: 440px;
  display: flex;
  gap: 10px;
}
.cta-form input {
  flex: 1;
  height: 52px;
  border-radius: 100px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.08);
  color: var(--white);
  padding: 0 22px;
  font-size: 15px;
  outline: none;
  transition: all var(--transition);
}
.cta-form input::placeholder {
  color: rgba(255, 255, 255, 0.5);
}
.cta-form input:focus {
  border-color: var(--accent);
  background: rgba(255, 255, 255, 0.12);
  box-shadow: 0 0 0 4px rgba(255, 107, 53, 0.2);
}
.cta-form .btn {
  height: 52px;
  white-space: nowrap;
}
.form-note {
  display: none;
  width: 100%;
  text-align: center;
  color: #7de3a8;
  font-size: 15px;
  font-weight: 600;
  padding-top: 12px;
}
.form-note.show {
  display: block;
}

/* ========== Footer ========== */
.site-footer {
  background: var(--primary);
  color: rgba(255, 255, 255, 0.7);
  padding: 80px 0 30px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 60px;
  margin-bottom: 50px;
}
.footer-brand .site-logo {
  color: var(--white);
  margin-bottom: 16px;
}
.footer-brand .site-logo::before {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}
.footer-brand p {
  font-size: 15px;
  line-height: 1.8;
  margin-top: 16px;
  color: rgba(255, 255, 255, 0.6);
}
.footer-title {
  color: var(--white);
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}
.footer-title::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 28px;
  height: 3px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 11px;
}
.footer-links a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.65);
  transition: all var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.footer-links a::before {
  content: "›";
  color: var(--accent);
  font-weight: 700;
}
.footer-links a:hover {
  color: var(--white);
  padding-left: 4px;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  text-align: center;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.45);
}
.footer-bottom a {
  color: rgba(255, 255, 255, 0.75);
}
.footer-bottom a:hover {
  color: var(--accent);
}

/* ========== Responsive ========== */
@media screen and (max-width: 1024px) {
  .category-hero h1 {
    font-size: 46px;
  }
  .section-head h2 {
    font-size: 30px;
  }
  .cta-inner {
    padding: 44px 32px;
  }
}
@media screen and (max-width: 768px) {
  .header-inner {
    grid-template-columns: auto 1fr auto;
    padding: 0 16px;
  }
  .nav-left,
  .nav-right {
    display: none;
  }
  .nav-toggle {
    display: flex;
  }
  .site-logo {
    justify-self: start;
    font-size: 17px;
  }
  .category-hero {
    padding: 90px 0 70px;
  }
  .category-hero h1 {
    font-size: 36px;
  }
  .hero-lead {
    font-size: 16px;
  }
  .hero-data-bar {
    gap: 14px;
    padding: 14px 20px;
    font-size: 13px;
  }
  .section {
    padding: 60px 0;
  }
  .news-section,
  .topics-section,
  .update-section,
  .faq-section {
    padding: 60px 0;
  }
  .section-head {
    flex-direction: column;
    align-items: flex-start;
  }
  .section-desc {
    max-width: 100%;
  }
  .stats .cell {
    margin-bottom: 16px;
  }
  .stat-card {
    padding: 26px 22px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 36px;
    margin-bottom: 34px;
  }
  .cta-inner {
    flex-direction: column;
    align-items: stretch;
    padding: 36px 26px;
    gap: 24px;
  }
  .cta-form {
    min-width: 0;
    flex-direction: column;
  }
  .cta-form .btn {
    width: 100%;
  }
  .faq-item summary {
    padding: 18px 20px;
    font-size: 15px;
  }
  .faq-item p {
    padding: 0 20px 20px;
  }
}
@media screen and (max-width: 520px) {
  .category-hero h1 {
    font-size: 30px;
    letter-spacing: 1px;
  }
  .hero-lead {
    font-size: 15px;
  }
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .hero-data-bar {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    text-align: left;
    gap: 10px 20px;
  }
  .nav-toggle {
    width: 40px;
    height: 40px;
  }
  .site-logo {
    font-size: 15px;
  }
  .chips-wrap {
    gap: 8px;
  }
  .chip {
    padding: 8px 14px;
    font-size: 13px;
  }
  .card-body {
    padding: 20px 18px;
  }
  .article-card.is-featured .card-title {
    font-size: 20px;
  }
  .card-title {
    font-size: 18px;
  }
  .cta-content h2 {
    font-size: 26px;
  }
}

/* roulang page: category2 */
/* ============ 设计变量 ============ */
:root {
  --primary: #c8102e;
  --primary-dark: #9e0d24;
  --primary-light: #e8455f;
  --secondary: #20242a;
  --secondary-light: #2d333b;
  --accent: #d4a017;
  --accent-light: #f0c24b;
  --bg: #f7f5f2;
  --bg-alt: #14171c;
  --bg-card: #ffffff;
  --text: #22262b;
  --text-weak: #6b7076;
  --text-invert: #f2f4f6;
  --border: #e6e1da;
  --border-dark: #3a3f47;
  --radius: 16px;
  --radius-sm: 8px;
  --radius-lg: 24px;
  --shadow: 0 8px 30px rgba(20, 23, 28, 0.08);
  --shadow-hover: 0 20px 50px rgba(20, 23, 28, 0.16);
  --shadow-dark: 0 10px 40px rgba(0, 0, 0, 0.35);
  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 28px;
  --space-lg: 56px;
  --space-xl: 88px;
  --font-base: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
  --font-size-h1: clamp(2.2rem, 5vw, 3.6rem);
  --font-size-h2: clamp(1.7rem, 3.5vw, 2.4rem);
  --font-size-h3: 1.3rem;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}
/* ============ 基础 reset ============ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-base);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--transition); }
button, input, select, textarea { font-family: inherit; }
ul, ol { list-style: none; }
/* ============ 通用容器 ============ */
.container { max-width: 1240px; margin: 0 auto; padding: 0 24px; position: relative; z-index: 1; }
.grid-container { max-width: 1240px; }
.section { padding: var(--space-xl) 0; position: relative; }
.section-alt { background: var(--bg-alt); color: var(--text-invert); }
.section-head { max-width: 760px; margin-bottom: var(--space-lg); }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-tag { display: inline-flex; align-items: center; gap: 8px; font-size: 0.85rem; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--primary); margin-bottom: 14px; }
.section-tag::before { content: ""; width: 28px; height: 3px; background: var(--primary); border-radius: 2px; }
.section-head.center .section-tag::after { content: ""; width: 28px; height: 3px; background: var(--primary); border-radius: 2px; }
.section-title { font-size: var(--font-size-h2); font-weight: 800; line-height: 1.25; margin-bottom: 16px; color: var(--text); }
.section-sub { font-size: 1.05rem; color: var(--text-weak); line-height: 1.8; }
.section-alt .section-title { color: var(--text-invert); }
.section-alt .section-sub { color: rgba(255, 255, 255, 0.7); }
/* ============ 按钮 ============ */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; padding: 12px 28px; border-radius: 60px; font-size: 1rem; font-weight: 600; border: 1px solid transparent; cursor: pointer; transition: all var(--transition); text-align: center; line-height: 1.4; }
.btn:focus-visible { outline: 3px solid rgba(200, 16, 46, 0.3); outline-offset: 2px; }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 6px 20px rgba(200, 16, 46, 0.25); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 10px 30px rgba(200, 16, 46, 0.35); }
.btn-ghost { background: transparent; color: #fff; border-color: rgba(255, 255, 255, 0.6); }
.btn-ghost:hover { background: rgba(255, 255, 255, 0.08); border-color: #fff; transform: translateY(-2px); }
.btn-outline { background: transparent; color: var(--text); border-color: var(--border); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn-sm { padding: 7px 16px; font-size: 0.85rem; border-radius: 40px; }
.btn-lg { padding: 14px 38px; font-size: 1.05rem; }
/* ============ 顶部导航 ============ */
.site-header {
  background: rgba(24, 27, 32, 0.95);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  position: sticky; top: 0; z-index: 100;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding: 14px 0;
}
.site-header .grid-container { display: flex; align-items: center; justify-content: space-between; gap: 20px; position: relative; }
.nav-left, .nav-right { display: flex; align-items: center; gap: 6px; flex: 1; }
.nav-right { justify-content: flex-end; }
.nav-link {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 16px; border-radius: 40px;
  font-size: 0.95rem; font-weight: 500; color: rgba(255, 255, 255, 0.75);
  transition: all var(--transition); white-space: nowrap;
}
.nav-link:hover { color: #fff; background: rgba(255, 255, 255, 0.08); }
.nav-link.active { color: #fff; background: rgba(200, 16, 46, 0.85); box-shadow: 0 4px 14px rgba(200, 16, 46, 0.3); }
.site-logo {
  font-size: 1.5rem; font-weight: 800; color: #fff;
  letter-spacing: -0.01em; white-space: nowrap; display: inline-flex; align-items: center; gap: 8px;
}
.site-logo::before { content: "◆"; color: var(--primary); font-size: 0.9rem; animation: pulse 2s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }
.logo-cell { text-align: center; flex-shrink: 0; }
.menu-toggle { display: none; width: 46px; height: 46px; border-radius: 12px; background: transparent; border: 1px solid rgba(255,255,255,0.2); cursor: pointer; position: relative; flex-direction: column; align-items: center; justify-content: center; gap: 5px; }
.menu-toggle span { display: block; width: 22px; height: 2px; background: #fff; border-radius: 2px; transition: all var(--transition); }
.menu-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.open span:nth-child(2) { opacity: 0; }
.menu-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.nav-cta { margin-left: 10px; }
/* ============ 页头 Hero ============ */
.page-hero {
  position: relative; padding: 120px 0 96px;
  background-size: cover; background-position: center;
  color: #fff; overflow: hidden;
}
.page-hero::before { content: ""; position: absolute; inset: 0; background: linear-gradient(115deg, rgba(10, 12, 16, 0.88) 0%, rgba(10, 12, 16, 0.55) 55%, rgba(200, 16, 46, 0.25) 100%); z-index: 0; }
.page-hero::after { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px); background-size: 42px 42px; z-index: 0; }
.page-hero .container { position: relative; z-index: 2; }
.hero-tag { display: inline-flex; align-items: center; gap: 10px; background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.2); backdrop-filter: blur(10px); padding: 6px 18px; border-radius: 40px; font-size: 0.9rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.1em; color: #fff; margin-bottom: 26px; }
.pulse-dot { width: 8px; height: 8px; background: var(--primary-light); border-radius: 50%; box-shadow: 0 0 0 0 rgba(232, 69, 95, 0.7); animation: pulse-dot 2s infinite; }
@keyframes pulse-dot { 0% { box-shadow: 0 0 0 0 rgba(232, 69, 95, 0.7);} 70% { box-shadow: 0 0 0 10px rgba(232, 69, 95, 0);} 100% { box-shadow: 0 0 0 0 rgba(232, 69, 95, 0);} }
.page-hero h1 { font-size: var(--font-size-h1); font-weight: 900; line-height: 1.15; margin-bottom: 20px; color: #fff; letter-spacing: -0.02em; }
.page-hero h1 em { font-style: normal; color: var(--accent-light); }
.page-hero p { font-size: 1.15rem; color: rgba(255, 255, 255, 0.82); max-width: 620px; line-height: 1.85; margin-bottom: 32px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; }
.hero-stat-line { display: flex; flex-wrap: wrap; gap: 36px; margin-top: 44px; padding-top: 32px; border-top: 1px solid rgba(255, 255, 255, 0.15); }
.hero-stat { display: flex; align-items: baseline; gap: 8px; }
.hero-stat b { font-size: 2rem; color: var(--accent-light); font-weight: 800; line-height: 1; }
.hero-stat span { font-size: 0.85rem; color: rgba(255,255,255,0.65); letter-spacing: 0.05em; }
/* ============ 分类说明 ============ */
.intro-section { padding: var(--space-xl) 0; }
.intro-card { display: flex; gap: 40px; align-items: center; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 40px; box-shadow: var(--shadow); }
.intro-media { flex: 1; position: relative; border-radius: var(--radius); overflow: hidden; min-height: 320px; }
.intro-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.intro-card:hover .intro-media img { transform: scale(1.04); }
.intro-media .media-meta { position: absolute; left: 16px; bottom: 16px; background: rgba(10, 12, 16, 0.7); color: #fff; backdrop-filter: blur(8px); font-size: 0.8rem; padding: 6px 14px; border-radius: 30px; display: inline-flex; align-items: center; gap: 6px; }
.intro-content { flex: 1.2; }
.intro-content h2 { font-size: var(--font-size-h2); font-weight: 800; line-height: 1.25; margin: 12px 0 18px; }
.intro-content > p { color: var(--text-weak); line-height: 1.9; font-size: 1rem; margin-bottom: 20px; }
.intro-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.tag { display: inline-flex; align-items: center; gap: 6px; padding: 6px 16px; border-radius: 40px; background: rgba(200, 16, 46, 0.08); color: var(--primary); font-size: 0.88rem; font-weight: 600; }
.tag i { font-size: 0.8rem; }
/* ============ HUD 数据面板 ============ */
.data-section { background: var(--bg-alt); color: var(--text-invert); padding: 64px 0; position: relative; overflow: hidden; }
.data-section::before { content: ""; position: absolute; inset: 0; background-image: repeating-linear-gradient(90deg, rgba(255,255,255,0.03) 0 2px, transparent 2px 40px), repeating-linear-gradient(0deg, rgba(255,255,255,0.03) 0 2px, transparent 2px 40px); }
.data-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; position: relative; }
.data-item { background: rgba(255, 255, 255, 0.04); border: 1px solid rgba(255, 255, 255, 0.1); border-radius: var(--radius); padding: 32px 24px; text-align: center; backdrop-filter: blur(8px); transition: all var(--transition); position: relative; }
.data-item::before { content: ""; position: absolute; top: 10px; left: 10px; right: 10px; border-top: 2px solid rgba(255,255,255,0.2); border-radius: 2px; }
.data-item:hover { background: rgba(255, 255, 255, 0.08); transform: translateY(-4px); border-color: rgba(200, 16, 46, 0.6); }
.data-num { font-size: 2.6rem; font-weight: 900; color: var(--accent-light); line-height: 1.1; margin-bottom: 8px; font-variant-numeric: tabular-nums; }
.data-item h4 { font-size: 1rem; font-weight: 600; color: rgba(255, 255, 255, 0.85); margin-bottom: 8px; }
.data-item p { font-size: 0.85rem; color: rgba(255, 255, 255, 0.5); line-height: 1.6; }
/* ============ 趋势榜单 ============ */
.trends-section { padding: var(--space-xl) 0; }
.trend-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.trend-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow); transition: all var(--transition); position: relative; display: flex; flex-direction: column; }
.trend-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.trend-media { position: relative; height: 220px; overflow: hidden; }
.trend-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.trend-card:hover .trend-media img { transform: scale(1.06); }
.trend-rank { position: absolute; top: 14px; left: 14px; background: rgba(10, 12, 16, 0.75); backdrop-filter: blur(6px); color: #fff; border: 1px solid rgba(255,255,255,0.2); font-size: 1.2rem; font-weight: 800; width: 42px; height: 42px; display: flex; align-items: center; justify-content: center; border-radius: 10px; z-index: 1; }
.trend-rank.hot { background: var(--primary); border-color: var(--primary-light); }
.trend-body { padding: 26px 24px 28px; display: flex; flex-direction: column; flex: 1; }
.trend-cat { font-size: 0.8rem; color: var(--primary); font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 10px; }
.trend-body h3 { font-size: 1.25rem; font-weight: 700; line-height: 1.4; margin-bottom: 12px; color: var(--text); }
.trend-body p { font-size: 0.95rem; color: var(--text-weak); line-height: 1.75; flex: 1; }
.trend-link { margin-top: 20px; font-weight: 600; font-size: 0.9rem; color: var(--primary); display: inline-flex; align-items: center; gap: 6px; }
.trend-link i { transition: transform var(--transition); }
.trend-card:hover .trend-link i { transform: translateX(4px); }
/* ============ 精选内容 ============ */
.features-section { padding: var(--space-xl) 0; background: var(--bg); }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature-card { background: var(--bg-card); border-radius: var(--radius); border: 1px solid var(--border); overflow: hidden; box-shadow: var(--shadow); transition: all var(--transition); display: flex; flex-direction: column; }
.feature-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); }
.feature-media { position: relative; height: 180px; overflow: hidden; }
.feature-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.feature-card:hover .feature-media img { transform: scale(1.07); }
.feature-date { position: absolute; top: 12px; right: 12px; background: rgba(10, 12, 16, 0.7); backdrop-filter: blur(6px); color: #fff; font-size: 0.75rem; padding: 4px 12px; border-radius: 20px; }
.feature-body { padding: 20px 20px 24px; display: flex; flex-direction: column; flex: 1; }
.feature-tag { align-self: flex-start; font-size: 0.75rem; font-weight: 700; color: var(--primary); background: rgba(200, 16, 46, 0.08); padding: 4px 12px; border-radius: 20px; margin-bottom: 12px; letter-spacing: 0.04em; }
.feature-body h3 { font-size: 1.1rem; font-weight: 700; line-height: 1.45; margin-bottom: 10px; color: var(--text); }
.feature-body p { font-size: 0.88rem; color: var(--text-weak); line-height: 1.7; flex: 1; }
.feature-more { margin-top: 18px; display: flex; align-items: center; gap: 8px; font-size: 0.85rem; font-weight: 600; color: var(--secondary); }
.feature-more i { transition: transform var(--transition); }
.feature-card:hover .feature-more i { transform: translateX(4px); }
/* ============ 对比面板 ============ */
.compare-section { padding: var(--space-xl) 0; background: var(--bg-alt); color: #fff; }
.compare-grid { display: grid; grid-template-columns: 1fr auto 1fr; gap: 20px; align-items: stretch; }
.compare-card { background: rgba(255, 255, 255, 0.04); border: 1px solid rgba(255,255,255,0.1); border-radius: var(--radius-lg); padding: 32px 28px; position: relative; transition: all var(--transition); }
.compare-card:hover { border-color: rgba(255,255,255,0.25); background: rgba(255,255,255,0.06); }
.compare-card .side-title { display: flex; align-items: center; gap: 12px; font-size: 1.3rem; font-weight: 800; margin-bottom: 22px; }
.compare-card .side-title i { font-size: 1.2rem; width: 40px; height: 40px; display: flex; align-items: center; justify-content: center; border-radius: 12px; background: rgba(255,255,255,0.1); }
.compare-card .side-title span { font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.1em; color: var(--accent-light); display: block; margin-bottom: 2px; }
.compare-list li { display: flex; gap: 10px; padding: 11px 0; border-bottom: 1px solid rgba(255,255,255,0.06); font-size: 0.95rem; line-height: 1.6; color: rgba(255,255,255,0.8); }
.compare-list li:last-child { border-bottom: none; }
.compare-list li i { color: var(--accent-light); font-size: 0.9rem; margin-top: 5px; flex-shrink: 0; }
.compare-vs { display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 0 8px; }
.vs-badge { width: 72px; height: 72px; border-radius: 50%; background: linear-gradient(135deg, var(--primary), var(--primary-dark)); display: flex; align-items: center; justify-content: center; font-weight: 900; font-size: 1.2rem; color: #fff; box-shadow: 0 8px 30px rgba(200,16,46,0.4); border: 3px solid rgba(255,255,255,0.2); }
.vs-line { width: 2px; flex: 1; min-height: 60px; background: linear-gradient(to bottom, rgba(255,255,255,0.4), transparent); margin-top: 8px; }
/* ============ 路径图 ============ */
.path-section { padding: var(--space-xl) 0; }
.path-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 40px; }
.path-step { position: relative; background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px 24px; box-shadow: var(--shadow); transition: all var(--transition); }
.path-step:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.path-step::after { content: ""; position: absolute; right: -22px; top: 40px; width: 20px; height: 20px; border-top: 2px solid var(--primary); border-right: 2px solid var(--primary); transform: rotate(45deg); z-index: 2; }
.path-step:last-child::after { display: none; }
.path-num { font-size: 2.4rem; font-weight: 900; line-height: 1; color: rgba(200, 16, 46, 0.15); margin-bottom: 12px; font-variant-numeric: tabular-nums; }
.path-step h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; color: var(--text); }
.path-step p { font-size: 0.88rem; color: var(--text-weak); line-height: 1.7; }
/* ============ FAQ ============ */
.faq-section { padding: var(--space-xl) 0; background: var(--bg); }
.faq-list { max-width: 860px; margin: 0 auto; }
.faq-item { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 14px; overflow: hidden; transition: box-shadow var(--transition); }
.faq-item:hover { box-shadow: var(--shadow); }
.faq-question { width: 100%; background: transparent; border: none; padding: 22px 26px; font-size: 1.05rem; font-weight: 600; color: var(--text); text-align: left; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 16px; transition: color var(--transition); }
.faq-question:hover { color: var(--primary); }
.faq-item.open .faq-question { color: var(--primary); }
.faq-icon { width: 28px; height: 28px; border-radius: 50%; background: rgba(200, 16, 46, 0.08); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 0.85rem; flex-shrink: 0; transition: all var(--transition); }
.faq-item.open .faq-icon { background: var(--primary); color: #fff; transform: rotate(180deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s ease; }
.faq-answer-inner { padding: 0 26px 22px; color: var(--text-weak); line-height: 1.8; font-size: 0.95rem; }
.faq-item.open .faq-answer { max-height: 300px; }
/* ============ CTA 订阅 ============ */
.cta-section { padding: 72px 0; background: linear-gradient(120deg, #14171c, #252a33); position: relative; overflow: hidden; }
.cta-section::before { content: ""; position: absolute; top: -40px; right: -40px; width: 220px; height: 220px; background: radial-gradient(circle, rgba(200,16,46,0.4), transparent 70%); border-radius: 50%; }
.cta-section::after { content: ""; position: absolute; bottom: -60px; left: 40px; width: 200px; height: 200px; background: radial-gradient(circle, rgba(212,160,23,0.2), transparent 70%); border-radius: 50%; }
.cta-box { position: relative; z-index: 2; text-align: center; max-width: 720px; margin: 0 auto; }
.cta-box h2 { font-size: var(--font-size-h2); color: #fff; font-weight: 800; margin-bottom: 14px; }
.cta-box p { color: rgba(255,255,255,0.7); font-size: 1.05rem; margin-bottom: 30px; }
.subscribe-form { display: flex; gap: 12px; max-width: 520px; margin: 0 auto; }
.subscribe-form input { flex: 1; padding: 14px 20px; border-radius: 60px; border: 1px solid rgba(255,255,255,0.2); background: rgba(255,255,255,0.08); color: #fff; font-size: 0.95rem; outline: none; transition: all var(--transition); }
.subscribe-form input::placeholder { color: rgba(255,255,255,0.45); }
.subscribe-form input:focus { border-color: var(--primary); background: rgba(255,255,255,0.12); }
.subscribe-form .btn { flex-shrink: 0; }
.form-note { margin-top: 16px; font-size: 0.82rem; color: rgba(255,255,255,0.45); }
/* ============ 页脚 ============ */
.site-footer { background: #0e1013; color: rgba(255,255,255,0.7); padding: 64px 0 0; border-top: 3px solid var(--primary); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,0.08); }
.footer-brand .site-logo { color: #fff; font-size: 1.35rem; margin-bottom: 14px; display: inline-flex; }
.footer-brand p { font-size: 0.9rem; line-height: 1.8; color: rgba(255,255,255,0.6); max-width: 360px; }
.footer-title { color: #fff; font-size: 1rem; font-weight: 700; margin-bottom: 16px; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { font-size: 0.9rem; color: rgba(255,255,255,0.6); display: inline-flex; align-items: center; gap: 8px; }
.footer-links a::before { content: "›"; color: var(--primary); font-weight: 700; transition: transform var(--transition); }
.footer-links a:hover { color: #fff; }
.footer-links a:hover::before { transform: translateX(3px); }
.footer-bottom { padding: 20px 0; text-align: center; font-size: 0.85rem; color: rgba(255,255,255,0.4); }
.footer-bottom a { color: rgba(255,255,255,0.7); }
.footer-bottom a:hover { color: #fff; }
/* ============ 响应式 ============ */
@media (max-width: 1024px) {
  .nav-link { font-size: 0.85rem; padding: 8px 12px; }
  .site-logo { font-size: 1.2rem; }
  .trend-grid { gap: 20px; }
  .feature-grid { gap: 18px; }
  .data-grid { grid-template-columns: repeat(2, 1fr); gap: 18px; }
  .path-steps { grid-template-columns: repeat(2, 1fr); }
  .path-step::after { display: none; }
  .compare-grid { grid-template-columns: 1fr; gap: 24px; }
  .compare-vs { flex-direction: row; gap: 16px; }
  .vs-line { width: 60px; height: 2px; min-height: auto; margin-top: 0; }
}
@media (max-width: 768px) {
  .site-header { padding: 10px 0; }
  .site-header .grid-container { flex-wrap: wrap; }
  .menu-toggle { display: flex; }
  .nav-left, .nav-right { display: none; width: 100%; flex-direction: column; align-items: stretch; gap: 4px; padding: 12px 0 4px; }
  .nav-left.open, .nav-right.open { display: flex; }
  .nav-link { justify-content: center; padding: 12px; border-radius: 10px; }
  .nav-cta { margin-left: 0; justify-content: center; }
  .logo-cell { order: -1; margin-right: auto; }
  .menu-toggle { display: flex; order: -1; }
  .site-logo { font-size: 1.05rem; }
  .site-logo::before { display: none; }
  .page-hero { padding: 80px 0 64px; }
  .page-hero h1 { font-size: 2rem; }
  .hero-stat-line { gap: 20px; }
  .intro-card { flex-direction: column; padding: 24px; }
  .intro-media { min-height: 220px; width: 100%; }
  .trend-grid { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .subscribe-form { flex-direction: column; }
  .subscribe-form .btn { width: 100%; }
  .data-grid { grid-template-columns: 1fr 1fr; }
  .path-steps { grid-template-columns: 1fr; }
  .section { padding: 60px 0; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .hero-stat-line { flex-direction: column; gap: 14px; }
  .hero-stat b { font-size: 1.5rem; }
  .data-grid { grid-template-columns: 1fr; }
  .compare-card { padding: 24px 18px; }
  .faq-question { padding: 18px 18px; font-size: 0.95rem; }
  .faq-answer-inner { padding: 0 18px 18px; }
}
/* ============ 滚动动画 ============ */
[data-reveal] { opacity: 0; transform: translateY(28px); transition: opacity 0.7s ease, transform 0.7s ease; }
[data-reveal].revealed { opacity: 1; transform: none; }