/* roulang page: index */
:root {
  --primary: #00C853;
  --primary-dark: #00A844;
  --primary-light: rgba(0, 200, 83, 0.12);
  --accent: #FF6D00;
  --accent-light: #FF8124;
  --dark: #16181D;
  --dark-2: #101114;
  --light: #F5F6F8;
  --white: #FFFFFF;
  --text: #1A1D24;
  --text-sec: #6B7280;
  --border: #E5E7EB;
  --radius-card: 16px;
  --radius-btn: 12px;
  --radius-input: 10px;
  --shadow-sm: 0 8px 24px rgba(26, 29, 36, 0.06);
  --shadow-lg: 0 12px 32px rgba(26, 29, 36, 0.12);
  --transition: 0.25s ease;
}
*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  margin: 0;
  background: var(--white);
  color: var(--text);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}
img {
  max-width: 100%;
  display: block;
}
button,
input {
  font-family: inherit;
}
.container {
  max-width: 1200px;
  padding-left: 20px;
  padding-right: 20px;
}
.section-padding {
  padding: 88px 0;
}
h1,
h2,
h3,
h4,
h5 {
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
}
h1 {
  font-size: 48px;
  letter-spacing: -0.01em;
}
h2 {
  font-size: 32px;
  margin-bottom: 14px;
}
.section-head {
  margin-bottom: 40px;
}
.section-head .section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--primary-light);
  color: var(--primary-dark);
  font-size: 13px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 999px;
  margin-bottom: 12px;
  letter-spacing: 0.02em;
}
.section-head h2 {
  font-size: 34px;
  font-weight: 800;
}
.section-head p {
  color: var(--text-sec);
  font-size: 16px;
  max-width: 620px;
  margin: 8px 0 0;
}
.btn-brand {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 12px 30px;
  border-radius: var(--radius-btn);
  font-size: 16px;
  font-weight: 700;
  transition: all var(--transition);
  cursor: pointer;
}
.btn-brand:hover {
  background: var(--accent-light);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(255, 109, 0, 0.28);
}
.btn-brand-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.7);
  padding: 11px 28px;
  border-radius: var(--radius-btn);
  font-size: 16px;
  font-weight: 600;
  transition: all var(--transition);
  cursor: pointer;
}
.btn-brand-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
}
.badge-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--primary-dark);
  background: var(--primary-light);
  padding: 4px 12px;
  border-radius: 999px;
  line-height: 1.4;
}
/* ===== Header / Nav ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(22, 24, 29, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  height: 80px;
  display: flex;
  align-items: center;
  transition: box-shadow var(--transition);
}
.site-header.scrolled {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}
.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}
.logo-area {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  color: #fff;
  font-size: 20px;
  line-height: 1.2;
  letter-spacing: 0.01em;
}
.logo-area .logo-icon {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.logo-area .logo-icon i {
  color: #fff;
  font-size: 16px;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 30px;
}
.main-nav a {
  color: rgba(255, 255, 255, 0.78);
  font-size: 15px;
  font-weight: 500;
  position: relative;
  padding: 6px 0;
  transition: color var(--transition);
}
.main-nav a:hover {
  color: #fff;
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: width var(--transition);
}
.main-nav a:hover::after,
.main-nav a.active::after {
  width: 100%;
}
.main-nav a.active {
  color: var(--primary);
  font-weight: 600;
}
.header-right {
  display: flex;
  align-items: center;
  gap: 16px;
}
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: rgba(255, 255, 255, 0.85);
  font-size: 13px;
  font-weight: 500;
  background: rgba(0, 200, 83, 0.14);
  border: 1px solid rgba(0, 200, 83, 0.3);
  padding: 4px 14px;
  border-radius: 999px;
}
.status-pill .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 0 0 rgba(0, 200, 83, 0.6);
  animation: pulse 1.8s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(0, 200, 83, 0.5); }
  70% { box-shadow: 0 0 0 6px rgba(0, 200, 83, 0); }
  100% { box-shadow: 0 0 0 0 rgba(0, 200, 83, 0); }
}
.btn-login {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 10px 22px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition);
}
.btn-login:hover {
  background: var(--accent-light);
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(255, 109, 0, 0.25);
}
.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: #fff;
  font-size: 22px;
  cursor: pointer;
  width: 44px;
  height: 44px;
  border-radius: 8px;
  align-items: center;
  justify-content: center;
}
.menu-toggle:hover {
  background: rgba(255, 255, 255, 0.08);
}
.mobile-nav {
  display: none;
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  z-index: 999;
  background: rgba(14, 16, 20, 0.98);
  backdrop-filter: blur(12px);
  padding: 24px 28px 30px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.mobile-nav.open {
  display: block;
}
.mobile-nav a {
  display: block;
  color: rgba(255, 255, 255, 0.82);
  font-size: 17px;
  font-weight: 600;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.mobile-nav a:last-child {
  border-bottom: none;
}
.mobile-nav a.active {
  color: var(--primary);
}
/* ===== Hero ===== */
.hero-section {
  min-height: 92vh;
  display: flex;
  align-items: center;
  position: relative;
  background: linear-gradient(180deg, rgba(22, 24, 29, 0.35) 0%, rgba(22, 24, 29, 0.75) 100%), url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
  padding: 140px 0 100px;
  color: #fff;
}
.hero-section .container {
  position: relative;
  z-index: 2;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 200, 83, 0.18);
  border: 1px solid rgba(0, 200, 83, 0.4);
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 24px;
}
.hero-section h1 {
  color: #fff;
  font-size: 62px;
  font-weight: 900;
  line-height: 1.2;
  max-width: 820px;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}
.hero-sub {
  color: rgba(255, 255, 255, 0.85);
  font-size: 18px;
  line-height: 1.7;
  max-width: 560px;
  margin-bottom: 34px;
}
.hero-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 52px;
}
.hero-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 36px;
  padding-top: 36px;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
}
.metric-item {
  display: flex;
  align-items: center;
  gap: 12px;
}
.metric-item .metric-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.14);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 18px;
}
.metric-item .metric-num {
  color: #fff;
  font-size: 22px;
  font-weight: 800;
  line-height: 1.2;
}
.metric-item .metric-label {
  color: rgba(255, 255, 255, 0.6);
  font-size: 13px;
}
.hero-wave {
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  text-align: center;
  color: rgba(0, 200, 83, 0.4);
  font-size: 25px;
  z-index: 3;
  padding: 16px 0;
  pointer-events: none;
}
/* ===== About ===== */
.about-section {
  background: var(--light);
}
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.about-media {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.about-media img {
  width: 100%;
  height: 360px;
  object-fit: cover;
}
.about-badge {
  position: absolute;
  left: 18px;
  bottom: 18px;
  background: rgba(22, 24, 29, 0.85);
  backdrop-filter: blur(4px);
  color: #fff;
  padding: 10px 18px;
  border-radius: 10px;
  font-size: 13px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}
.about-badge i {
  color: var(--primary);
}
.about-content h2 {
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 16px;
}
.about-content .lead-text {
  font-size: 16px;
  color: var(--text-sec);
  line-height: 1.8;
  margin-bottom: 16px;
}
.about-meta {
  margin-top: 24px;
  border-top: 1px solid var(--border);
  padding-top: 20px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.about-meta-item {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 14px;
}
.about-meta-item i {
  color: var(--primary);
  margin-top: 3px;
  width: 16px;
}
.about-meta-item .meta-title {
  font-weight: 700;
  display: block;
}
.about-meta-item .meta-value {
  color: var(--text-sec);
}
/* ===== Feature Cards ===== */
.feature-cards {
  background: var(--white);
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.fcard {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}
.fcard:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.fcard-img {
  position: relative;
  height: 170px;
  overflow: hidden;
}
.fcard-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.fcard:hover .fcard-img img {
  transform: scale(1.03);
}
.fcard-img .badge-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(0, 200, 83, 0.14);
  backdrop-filter: blur(4px);
  color: var(--primary);
  border: 1px solid rgba(0, 200, 83, 0.25);
}
.fcard-body {
  padding: 20px;
}
.fcard-body h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
}
.fcard-body p {
  font-size: 14px;
  color: var(--text-sec);
  line-height: 1.65;
  margin: 0 0 12px;
}
.fcard-more {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary-dark);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap var(--transition);
}
.fcard-more:hover {
  gap: 10px;
  color: var(--primary);
}
/* ===== Latest Info CMS ===== */
.news-section {
  background: var(--light);
}
.news-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 28px;
  gap: 20px;
}
.news-header h2 {
  margin-bottom: 0;
}
.news-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary-dark);
  font-size: 15px;
  font-weight: 600;
  padding: 8px 16px;
  border: 1px solid rgba(0, 200, 83, 0.3);
  border-radius: 999px;
  transition: all var(--transition);
}
.news-more:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.news-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.news-list-item {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px 20px;
  transition: all var(--transition);
  position: relative;
}
.news-list-item:hover {
  border-left: 4px solid var(--primary);
  transform: translateX(4px);
  box-shadow: var(--shadow-sm);
  background: #fff;
}
.news-list-item .news-date {
  flex: 0 0 88px;
  font-size: 13px;
  color: var(--text-sec);
  font-weight: 500;
}
.news-list-item .news-cat {
  flex: 0 0 auto;
}
.news-list-item .news-title {
  flex: 1;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}
.news-list-item:hover .news-title {
  color: var(--primary-dark);
}
.news-list-item .news-summary {
  flex: 0 0 300px;
  font-size: 14px;
  color: var(--text-sec);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.news-list-item .news-arrow {
  flex: 0 0 auto;
  color: var(--text-sec);
  font-size: 14px;
  transition: transform var(--transition);
}
.news-list-item:hover .news-arrow {
  transform: translateX(3px);
  color: var(--primary);
}
.news-empty {
  text-align: center;
  padding: 60px 20px;
  background: var(--white);
  border: 1px dashed var(--border);
  border-radius: var(--radius-card);
  color: var(--text-sec);
}
.news-empty i {
  font-size: 36px;
  color: #D1D5DB;
  margin-bottom: 12px;
}
.news-empty p {
  margin: 0;
  font-size: 15px;
}
/* ===== Trust ===== */
.trust-section {
  background: var(--dark);
  color: #fff;
  padding: 88px 0;
}
.trust-section h2 {
  color: #fff;
}
.trust-brands {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 32px 54px;
  margin-bottom: 56px;
  opacity: 0.75;
  filter: grayscale(1);
}
.trust-brands span {
  font-size: 17px;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.55);
  letter-spacing: 0.04em;
  transition: all var(--transition);
  cursor: default;
}
.trust-brands span:hover {
  color: var(--primary);
  filter: none;
  opacity: 1;
}
.trust-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 48px;
}
.trust-stats .stat-num {
  font-size: 42px;
  font-weight: 900;
  color: var(--primary);
  line-height: 1.2;
}
.trust-stats .stat-label {
  color: rgba(255, 255, 255, 0.6);
  font-size: 15px;
  margin-top: 6px;
}
/* ===== Newsletter CTA ===== */
.newsletter-section {
  background: linear-gradient(135deg, #0E2E1A 0%, #1B4D28 60%, #2A6338 100%);
  padding: 88px 0;
  position: relative;
  overflow: hidden;
}
.newsletter-section::before {
  content: "";
  position: absolute;
  right: -60px;
  top: -60px;
  width: 220px;
  height: 220px;
  border: 3px solid rgba(0, 200, 83, 0.18);
  border-radius: 50%;
}
.newsletter-section::after {
  content: "";
  position: absolute;
  left: 40px;
  bottom: 30px;
  width: 48px;
  height: 48px;
  background: rgba(255, 109, 0, 0.2);
  transform: rotate(45deg);
}
.newsletter-box {
  text-align: center;
  position: relative;
  z-index: 2;
}
.newsletter-box h2 {
  color: #fff;
  font-size: 34px;
  font-weight: 800;
}
.newsletter-box p {
  color: rgba(255, 255, 255, 0.75);
  font-size: 16px;
  max-width: 520px;
  margin: 12px auto 32px;
}
.newsletter-form {
  display: flex;
  gap: 12px;
  justify-content: center;
  max-width: 480px;
  margin: 0 auto;
}
.newsletter-form input {
  flex: 1;
  padding: 13px 18px;
  border-radius: var(--radius-btn);
  border: 1px solid rgba(255, 255, 255, 0.25);
  background: rgba(255, 255, 255, 0.92);
  font-size: 15px;
  color: var(--text);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.newsletter-form input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(0, 200, 83, 0.2);
}
.newsletter-privacy {
  color: rgba(255, 255, 255, 0.5);
  font-size: 13px;
  margin-top: 16px;
}
.newsletter-success {
  display: none;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(0, 200, 83, 0.4);
  color: #fff;
  padding: 20px 30px;
  border-radius: var(--radius-card);
  max-width: 440px;
  margin: 0 auto;
  text-align: center;
}
.newsletter-success.visible {
  display: flex;
  align-items: center;
  gap: 12px;
  justify-content: center;
}
.newsletter-success i {
  font-size: 26px;
  color: var(--primary);
}
/* ===== FAQ ===== */
.faq-section {
  background: var(--white);
}
.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  background: var(--white);
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.faq-item:hover {
  border-color: rgba(0, 200, 83, 0.3);
}
.faq-item.active {
  border-color: rgba(0, 200, 83, 0.4);
  box-shadow: var(--shadow-sm);
}
.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  gap: 16px;
}
.faq-q .faq-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-weight: 400;
  font-size: 19px;
  transition: transform var(--transition);
}
.faq-item.active .faq-q .faq-icon {
  transform: rotate(45deg);
}
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
  padding: 0 24px;
  color: var(--text-sec);
  font-size: 14px;
  line-height: 1.7;
}
.faq-item.active .faq-a {
  max-height: 240px;
  padding: 0 24px 20px;
}
/* ===== Footer ===== */
.site-footer {
  background: var(--dark-2);
  color: rgba(255, 255, 255, 0.6);
  padding-top: 72px;
  padding-bottom: 0;
  border-top: 3px solid transparent;
  background-image: linear-gradient(90deg, var(--primary) 0%, var(--accent) 100%);
  background-repeat: no-repeat;
  background-size: 100% 3px;
  background-position: top;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 48px;
}
.footer-brand .logo-area {
  margin-bottom: 16px;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: 20px;
  max-width: 300px;
}
.footer-title {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 18px;
}
.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links a {
  color: rgba(255, 255, 255, 0.55);
  font-size: 14px;
  transition: color var(--transition), padding-left var(--transition);
}
.footer-links a:hover {
  color: var(--primary);
  padding-left: 4px;
}
.footer-contact-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.footer-contact-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.6;
}
.footer-contact-list i {
  color: var(--primary);
  margin-top: 3px;
  width: 16px;
  text-align: center;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
}
/* ===== Responsive ===== */
@media (max-width: 991.98px) {
  .main-nav {
    display: none;
  }
  .status-pill {
    display: none;
  }
  .menu-toggle {
    display: flex;
  }
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .about-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .news-list-item .news-summary {
    display: none;
  }
  .hero-section h1 {
    font-size: 46px;
  }
}
@media (max-width: 767.98px) {
  .hero-section {
    min-height: auto;
    padding: 120px 0 72px;
  }
  .hero-section h1 {
    font-size: 35px;
  }
  .hero-sub {
    font-size: 16px;
  }
  .section-padding {
    padding: 56px 0;
  }
  h2 {
    font-size: 26px;
  }
  .section-head h2 {
    font-size: 26px;
  }
  .feature-grid {
    grid-template-columns: 1fr;
  }
  .trust-stats {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .newsletter-form {
    flex-direction: column;
    align-items: center;
  }
  .newsletter-form input {
    width: 100%;
  }
  .newsletter-form .btn-brand {
    width: 100%;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .news-list-item {
    flex-wrap: wrap;
    gap: 8px 12px;
  }
  .news-list-item .news-date {
    flex: 0 0 auto;
    font-size: 12px;
  }
  .news-list-item .news-title {
    flex: 1 1 100%;
    font-size: 15px;
    white-space: normal;
  }
  .hero-metrics {
    gap: 20px;
  }
  .metric-item {
    flex: 1 1 100%;
  }
}
@media (max-width: 575.98px) {
  .hero-btns {
    flex-direction: column;
  }
  .hero-btns .btn-brand,
  .hero-btns .btn-brand-outline {
    width: 100%;
  }
  .about-meta {
    grid-template-columns: 1fr;
  }
  .logo-area {
    font-size: 17px;
  }
  .site-header {
    height: 64px;
  }
  .mobile-nav {
    top: 64px;
  }
}

/* roulang page: category1 */
:root {
  --primary: #00C853;
  --primary-dark: #00A844;
  --accent: #FF6D00;
  --accent-hover: #FF8124;
  --dark: #16181D;
  --dark-2: #101114;
  --light: #F5F6F8;
  --card-bg: #FFFFFF;
  --text-main: #1A1D24;
  --text-sub: #6B7280;
  --border: #E5E7EB;
  --radius-card: 16px;
  --radius-btn: 12px;
  --radius-input: 10px;
  --shadow-sm: 0 8px 24px rgba(26,29,36,0.06);
  --shadow-hover: 0 12px 32px rgba(26,29,36,0.12);
  --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-family);
  background: var(--light);
  color: var(--text-main);
  line-height: 1.7;
  font-size: 16px;
}
a { text-decoration: none; color: inherit; transition: color .2s; }
img { max-width: 100%; display: block; }
button, input { font-family: inherit; }
ul, ol { list-style: none; }
h1, h2, h3, h4 { line-height: 1.3; font-weight: 700; }
.container { max-width: 1200px; margin: 0 auto; padding-left: 24px; padding-right: 24px; }

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(22,24,29,0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 80px;
}
.logo-area {
  display: flex; align-items: center; gap: 10px;
  color: #fff; font-weight: 800; font-size: 18px; letter-spacing: .5px;
  white-space: nowrap;
}
.logo-icon {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 16px;
  flex-shrink: 0;
}
.logo-text span { color: var(--primary); }
.main-nav { display: flex; align-items: center; gap: 32px; }
.main-nav a {
  color: rgba(255,255,255,0.8);
  font-size: 15px; font-weight: 500;
  position: relative; padding: 8px 2px;
  white-space: nowrap;
}
.main-nav a::after {
  content: ""; position: absolute; left: 0; bottom: 2px;
  width: 100%; height: 2px; background: var(--primary);
  transform: scaleX(0); transform-origin: left; transition: transform .25s;
}
.main-nav a:hover { color: #fff; }
.main-nav a:hover::after { transform: scaleX(1); }
.main-nav a.active { color: var(--primary); }
.main-nav a.active::after { transform: scaleX(1); }
.header-actions { display: flex; align-items: center; gap: 18px; }
.status-badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(0,200,83,0.14); border: 1px solid rgba(0,200,83,0.3);
  color: #E9F9EF; font-size: 13px; font-weight: 600;
  padding: 6px 14px; border-radius: 999px;
}
.status-dot {
  width: 7px; height: 7px; background: var(--primary); border-radius: 50%;
  position: relative;
}
.status-dot::after {
  content: ""; position: absolute; inset: -3px;
  border-radius: 50%; background: rgba(0,200,83,0.5);
  animation: pulse 1.8s infinite;
}
@keyframes pulse {
  0% { transform: scale(.6); opacity: .9; }
  100% { transform: scale(1.6); opacity: 0; }
}
.btn-cta {
  background: var(--accent); color: #fff !important;
  border: none; padding: 10px 28px; border-radius: var(--radius-btn);
  font-size: 14px; font-weight: 700;
  transition: all .25s;
  white-space: nowrap;
}
.btn-cta:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(255,109,0,.3); }
.nav-toggle {
  display: none;
  background: none; border: none; color: #fff; font-size: 22px;
  cursor: pointer; padding: 8px;
}

/* ---------- Page Hero ---------- */
.page-hero {
  position: relative;
  padding: 160px 0 80px;
  background: linear-gradient(180deg, rgba(22,24,29,0.55) 0%, rgba(22,24,29,0.72) 100%), url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
  color: #fff;
}
.page-hero .hero-content { position: relative; z-index: 2; }
.hero-tag {
  display: inline-block;
  background: rgba(0,200,83,0.18);
  border: 1px solid rgba(0,200,83,0.35);
  color: #C8F5D8; font-size: 13px; font-weight: 600;
  padding: 6px 16px; border-radius: 999px;
  margin-bottom: 20px;
  letter-spacing: .3px;
}
.page-hero h1 {
  font-size: 46px; font-weight: 900; letter-spacing: 1px;
  margin-bottom: 16px;
}
.page-hero h1 .accent-text { color: var(--primary); }
.page-hero p.lead {
  font-size: 18px; color: rgba(255,255,255,0.82);
  max-width: 560px; margin-bottom: 32px;
  line-height: 1.8;
}
.hero-stats {
  display: flex; gap: 40px; flex-wrap: wrap;
  margin-top: 42px;
}
.hero-stat-item .num {
  font-size: 30px; font-weight: 900; color: var(--primary);
}
.hero-stat-item .label {
  font-size: 14px; color: rgba(255,255,255,0.65);
  margin-top: 4px;
}
.hero-geo {
  position: absolute; bottom: 0; right: 0; z-index: 1;
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(0,200,83,0.16) 0%, transparent 70%);
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
  opacity: .5;
}

/* ---------- Section base ---------- */
.section {
  padding: 80px 0;
}
.section-alt { background: #fff; }
.section-head {
  text-align: center; max-width: 680px; margin: 0 auto 48px;
}
.section-head .eyebrow {
  display: inline-block;
  color: var(--primary-dark); font-size: 14px; font-weight: 700;
  letter-spacing: 2px; text-transform: uppercase;
  margin-bottom: 10px;
}
.section-head h2 {
  font-size: 34px; font-weight: 800; color: var(--text-main);
  margin-bottom: 14px;
}
.section-head p {
  color: var(--text-sub); font-size: 15px; line-height: 1.8;
}

/* ---------- Intro ---------- */
.intro-wrap {
  display: grid; grid-template-columns: 1.2fr .8fr; gap: 56px; align-items: center;
}
.intro-text h2 {
  font-size: 30px; font-weight: 800; margin-bottom: 18px;
  color: var(--text-main);
}
.intro-text p {
  color: var(--text-sub); font-size: 16px; line-height: 1.85;
  margin-bottom: 16px;
}
.intro-text .btn-primary-custom {
  margin-top: 12px;
}
.intro-panel {
  background: var(--card-bg);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-sm);
  padding: 32px;
  border: 1px solid var(--border);
}
.intro-panel-title {
  font-size: 18px; font-weight: 700; margin-bottom: 20px;
  display: flex; align-items: center; gap: 10px;
}
.intro-panel-title i { color: var(--primary); }
.intro-panel-list li {
  display: flex; justify-content: space-between;
  padding: 13px 0; border-bottom: 1px solid #F0F1F3;
  font-size: 15px;
}
.intro-panel-list li:last-child { border-bottom: none; }
.intro-panel-list .k { color: var(--text-sub); }
.intro-panel-list .v { font-weight: 700; color: var(--text-main); }

/* ---------- Buttons ---------- */
.btn-primary-custom {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--primary); color: #fff;
  padding: 12px 32px; border-radius: var(--radius-btn);
  font-size: 15px; font-weight: 700; border: none;
  cursor: pointer; transition: all .25s;
}
.btn-primary-custom:hover {
  background: var(--primary-dark); color: #fff;
  transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,168,68,.25);
}
.btn-outline-custom {
  display: inline-flex; align-items: center; gap: 8px;
  background: transparent; color: #fff;
  padding: 11px 30px; border-radius: var(--radius-btn);
  font-size: 15px; font-weight: 700;
  border: 1.5px solid rgba(255,255,255,.7);
  cursor: pointer; transition: all .25s;
}
.btn-outline-custom:hover {
  border-color: var(--primary); color: var(--primary);
  transform: translateY(-2px);
}

/* ---------- Dimension cards ---------- */
.dim-card {
  background: var(--card-bg);
  border-radius: var(--radius-card);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  height: 100%;
  transition: transform .25s, box-shadow .25s;
}
.dim-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.dim-card-img {
  position: relative; overflow: hidden;
  aspect-ratio: 16 / 9;
}
.dim-card-img img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .4s;
}
.dim-card:hover .dim-card-img img { transform: scale(1.04); }
.dim-card-img .card-tag {
  position: absolute; top: 14px; left: 14px; z-index: 2;
  background: rgba(0,200,83,.9); color: #fff;
  font-size: 12px; font-weight: 700;
  padding: 5px 12px; border-radius: 999px;
}
.dim-card-body { padding: 26px; }
.dim-card-body h3 {
  font-size: 19px; font-weight: 700; margin-bottom: 10px;
}
.dim-card-body p {
  color: var(--text-sub); font-size: 14px; line-height: 1.75;
  margin-bottom: 0;
}
.dim-card-link {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--primary-dark); font-size: 14px; font-weight: 600;
  margin-top: 16px;
}
.dim-card-link:hover { color: var(--accent); }

/* ---------- Coverage ---------- */
.coverage-section {
  background: var(--dark);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.coverage-section::before {
  content: "";
  position: absolute; top: -120px; right: -120px;
  width: 340px; height: 340px;
  border: 1px solid rgba(0,200,83,.2);
  border-radius: 50%;
}
.coverage-section .section-head h2 { color: #fff; }
.coverage-section .section-head p { color: rgba(255,255,255,.6); }
.coverage-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
  position: relative; z-index: 2;
}
.coverage-item {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--radius-card);
  padding: 28px 20px;
  text-align: center;
  transition: all .25s;
}
.coverage-item:hover {
  background: rgba(0,200,83,.1);
  border-color: rgba(0,200,83,.35);
  transform: translateY(-4px);
}
.coverage-item i {
  font-size: 30px; color: var(--primary); margin-bottom: 14px;
}
.coverage-item .name {
  font-size: 16px; font-weight: 600;
}
.coverage-item .desc {
  font-size: 13px; color: rgba(255,255,255,.5); margin-top: 6px;
}

/* ---------- Flow ---------- */
.flow-section { background: #fff; }
.flow-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px;
}
.flow-step {
  position: relative;
  padding: 28px 20px 20px;
  background: var(--light);
  border-radius: var(--radius-card);
  border: 1px solid var(--border);
  transition: all .25s;
}
.flow-step:hover {
  box-shadow: var(--shadow-sm);
  transform: translateY(-4px);
}
.flow-step .step-num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px;
  background: var(--primary); color: #fff;
  font-weight: 800; font-size: 18px; border-radius: 12px;
  margin-bottom: 18px;
}
.flow-step h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.flow-step p { font-size: 14px; color: var(--text-sub); line-height: 1.7; }
.flow-step::after {
  content: "\f105";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  position: absolute; top: 50%; right: -18px;
  color: var(--primary); font-size: 16px;
  opacity: .5; transform: translateY(-50%);
  z-index: 2;
}
.flow-step:last-child::after { display: none; }

/* ---------- Showcase ---------- */
.showcase-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px;
}
.showcase-card {
  border-radius: var(--radius-card);
  overflow: hidden;
  position: relative;
  aspect-ratio: 3 / 3.4;
  box-shadow: var(--shadow-sm);
}
.showcase-card img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .4s;
}
.showcase-card:hover img { transform: scale(1.05); }
.showcase-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(22,24,29,0) 30%, rgba(22,24,29,.85) 100%);
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: 28px;
}
.showcase-overlay .tag {
  font-size: 12px; font-weight: 700;
  background: var(--accent); color: #fff;
  display: inline-block; width: fit-content;
  padding: 5px 12px; border-radius: 999px;
  margin-bottom: 10px;
}
.showcase-overlay h3 {
  color: #fff; font-size: 20px; font-weight: 700;
  margin-bottom: 6px;
}
.showcase-overlay p {
  color: rgba(255,255,255,.7); font-size: 14px;
  line-height: 1.6; margin-bottom: 14px;
}
.showcase-link {
  color: var(--primary); font-size: 14px; font-weight: 600;
  display: inline-flex; align-items: center; gap: 6px;
}
.showcase-link:hover { color: #fff; }

/* ---------- FAQ ---------- */
.faq-section { background: var(--light); }
.faq-wrap { max-width: 800px; margin: 0 auto; }
.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  margin-bottom: 14px;
  overflow: hidden;
}
.faq-item summary {
  list-style: none;
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 26px;
  cursor: pointer;
  font-size: 16px; font-weight: 600;
  background: #fff;
  transition: background .3s;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .faq-icon {
  color: var(--primary); font-size: 18px;
  transition: transform .3s;
  flex-shrink: 0;
}
.faq-item[open] summary { background: #F8FDF9; }
.faq-item[open] summary .faq-icon {
  transform: rotate(45deg);
  color: var(--accent);
}
.faq-answer {
  padding: 0 26px 22px;
  color: var(--text-sub); font-size: 15px; line-height: 1.85;
}

/* ---------- CTA ---------- */
.cta-section {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, #00E066 100%);
  padding: 64px 0;
  position: relative;
  overflow: hidden;
}
.cta-section::after {
  content: "";
  position: absolute; top: -40px; right: -40px;
  width: 160px; height: 160px;
  border: 20px solid rgba(255,255,255,.08);
  border-radius: 50%;
}
.cta-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 40px; position: relative; z-index: 2;
  flex-wrap: wrap;
}
.cta-text h2 {
  color: #fff; font-size: 30px; font-weight: 800;
  margin-bottom: 10px;
}
.cta-text p {
  color: rgba(255,255,255,.85); font-size: 15px;
}
.cta-buttons { display: flex; gap: 14px; flex-wrap: wrap; }
.btn-white {
  background: #fff; color: var(--primary-dark);
  padding: 12px 32px; border-radius: var(--radius-btn);
  font-size: 15px; font-weight: 700;
  transition: all .25s;
}
.btn-white:hover { background: var(--light); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,.15); }
.btn-ghost {
  background: transparent; color: #fff;
  padding: 11px 30px; border-radius: var(--radius-btn);
  font-size: 15px; font-weight: 700;
  border: 1.5px solid rgba(255,255,255,.8);
  transition: all .25s;
}
.btn-ghost:hover { border-color: #fff; background: rgba(255,255,255,.1); transform: translateY(-2px); }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--dark-2);
  color: rgba(255,255,255,.65);
  border-top: 1px solid rgba(0,200,83,.4);
}
.site-footer .container { padding-top: 50px; padding-bottom: 24px; }
.footer-grid {
  display: grid; grid-template-columns: 1.3fr 1fr 1fr 1.2fr;
  gap: 32px; margin-bottom: 40px;
}
.footer-brand .logo-area { margin-bottom: 16px; font-size: 17px; }
.footer-brand p {
  font-size: 14px; line-height: 1.8;
  max-width: 280px;
}
.footer-title {
  font-size: 14px; font-weight: 700; color: #fff;
  margin-bottom: 16px;
}
.footer-links li { margin-bottom: 10px; }
.footer-links a {
  color: rgba(255,255,255,.65); font-size: 14px;
  transition: all .2s;
}
.footer-links a:hover { color: var(--primary); padding-left: 4px; }
.footer-contact-list li {
  display: flex; align-items: center; gap: 10px;
  font-size: 14px; margin-bottom: 12px;
}
.footer-contact-list i { color: var(--primary); width: 16px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.06);
  padding-top: 22px;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,.4);
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .coverage-grid { grid-template-columns: repeat(4, 1fr); gap: 16px; }
  .flow-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .flow-step::after { display: none; }
  .showcase-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .main-nav {
    position: fixed; top: 80px; left: 0; right: 0;
    background: rgba(22,24,29,.98);
    flex-direction: column; align-items: flex-start;
    gap: 0; padding: 20px 24px;
    transform: translateY(-120%); transition: transform .3s;
    border-bottom: 1px solid rgba(255,255,255,.06);
  }
  .main-nav.open { transform: translateY(0); }
  .main-nav a {
    display: block; width: 100%;
    padding: 14px 0; border-bottom: 1px solid rgba(255,255,255,.06);
    font-size: 16px;
  }
  .main-nav a::after { display: none; }
  .nav-toggle { display: block; }
  .header-actions .status-badge { display: none; }
  .page-hero { padding: 130px 0 60px; }
  .page-hero h1 { font-size: 34px; }
  .page-hero p.lead { font-size: 16px; }
  .hero-stats { gap: 24px; }
  .section { padding: 56px 0; }
  .section-head h2 { font-size: 26px; }
  .intro-wrap { grid-template-columns: 1fr; gap: 32px; }
  .coverage-grid { grid-template-columns: repeat(2, 1fr); }
  .flow-grid { grid-template-columns: 1fr; }
  .showcase-grid { grid-template-columns: 1fr; }
  .cta-inner { flex-direction: column; text-align: center; justify-content: center; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 576px) {
  .header-inner { height: 64px; }
  .main-nav { top: 64px; }
  .logo-text { font-size: 15px; }
  .btn-cta { padding: 9px 20px; font-size: 13px; }
  .page-hero { padding: 110px 0 50px; }
  .page-hero h1 { font-size: 28px; }
  .hero-stats { gap: 16px; }
  .hero-stat-item .num { font-size: 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .section-head h2 { font-size: 23px; }
}
@media (max-width: 420px) {
  .coverage-grid { grid-template-columns: 1fr; }
  .btn-white, .btn-ghost { width: 100%; justify-content: center; }
}

/* roulang page: article */
:root {
            --color-primary: #00C853;
            --color-primary-dark: #00A844;
            --color-accent: #FF6D00;
            --color-dark: #16181D;
            --color-dark-soft: #1F232B;
            --color-light: #F5F6F8;
            --color-white: #FFFFFF;
            --color-text: #1A1D24;
            --color-text-secondary: #6B7280;
            --color-border: #E5E7EB;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 2px 8px rgba(26, 29, 36, 0.05);
            --shadow-md: 0 8px 24px rgba(26, 29, 36, 0.06);
            --shadow-lg: 0 12px 32px rgba(26, 29, 36, 0.12);
            --trans: all 0.25s ease;
            --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-main);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background: var(--color-light);
            overflow-x: hidden;
            padding-top: 80px;
        }

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

        img {
            max-width: 100%;
            height: auto;
        }

        ul,
        ol {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        button {
            border: none;
            background: none;
            cursor: pointer;
        }

        .container {
            max-width: 1200px;
        }

        /* ---------- 按钮 ---------- */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 700;
            padding: 12px 24px;
            border-radius: 10px;
            transition: var(--trans);
            border: 2px solid transparent;
            cursor: pointer;
            line-height: 1.4;
        }

        .btn-primary {
            --bs-btn-bg: var(--color-accent);
            --bs-btn-border-color: var(--color-accent);
            --bs-btn-hover-bg: #ff8a00;
            --bs-btn-hover-border-color: #ff8a00;
            --bs-btn-active-bg: #e65100;
            --bs-btn-active-border-color: #e65100;
            --bs-btn-color: #fff;
            --bs-btn-hover-color: #fff;
            --bs-btn-active-color: #fff;
            border-radius: 10px;
            font-weight: 700;
            padding: 12px 32px;
            transition: all 0.25s ease;
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(255, 109, 0, 0.3);
        }

        .btn-outline {
            background: transparent;
            border-color: #fff;
            color: #fff;
            font-weight: 700;
        }
        .btn-outline:hover {
            border-color: var(--color-primary);
            color: var(--color-primary);
            background: transparent;
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 14px;
            border-radius: 8px;
        }

        .btn-lg {
            padding: 16px 40px;
            font-size: 17px;
            border-radius: 12px;
        }

        /* ---------- 顶部导航 ---------- */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: 80px;
            background: rgba(22, 24, 29, 0.95);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .header-inner {
            height: 80px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            font-weight: 800;
            font-size: 18px;
            white-space: nowrap;
            line-height: 1.2;
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            background: var(--color-primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            flex-shrink: 0;
        }

        .main-nav {
            display: none;
            align-items: center;
            gap: 32px;
        }

        .main-nav a {
            color: rgba(255, 255, 255, 0.8);
            font-size: 16px;
            font-weight: 500;
            position: relative;
            padding: 8px 0;
            transition: var(--trans);
        }

        .main-nav a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 100%;
            height: 2px;
            background: var(--color-primary);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.25s ease;
        }

        .main-nav a:hover,
        .main-nav a.active {
            color: var(--color-primary);
        }

        .main-nav a:hover::after,
        .main-nav a.active::after {
            transform: scaleX(1);
        }

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

        .live-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(0, 200, 83, 0.15);
            border: 1px solid rgba(0, 200, 83, 0.3);
            color: var(--color-primary);
            font-size: 13px;
            font-weight: 600;
            padding: 5px 12px;
            border-radius: 999px;
        }

        .pulse-dot {
            width: 8px;
            height: 8px;
            background: var(--color-primary);
            border-radius: 50%;
            display: inline-block;
            position: relative;
        }

        .pulse-dot::after {
            content: '';
            position: absolute;
            inset: -3px;
            border-radius: 50%;
            background: rgba(0, 200, 83, 0.4);
            animation: pulse 1.8s ease-out infinite;
        }

        @keyframes pulse {
            0% {
                transform: scale(0.6);
                opacity: 0.8;
            }
            100% {
                transform: scale(1.6);
                opacity: 0;
            }
        }

        .mobile-toggle {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            color: #fff;
            font-size: 20px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.08);
            transition: var(--trans);
        }

        .mobile-toggle:hover {
            background: rgba(255, 255, 255, 0.15);
        }

        /* 移动端菜单 */
        .mobile-menu {
            position: fixed;
            top: 80px;
            left: 0;
            right: 0;
            background: var(--color-dark);
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            z-index: 999;
        }

        .mobile-menu.open {
            max-height: 320px;
            padding: 20px 24px;
        }

        .mobile-nav {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .mobile-nav a {
            display: block;
            color: rgba(255, 255, 255, 0.85);
            font-size: 18px;
            font-weight: 600;
            padding: 12px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .mobile-nav a:last-child {
            border-bottom: none;
        }

        .mobile-nav a.active {
            color: var(--color-primary);
        }

        /* ---------- 文章头图 Banner ---------- */
        .article-hero {
            padding: 110px 0 80px;
            background-size: cover;
            background-position: center;
            position: relative;
            color: #fff;
        }

        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(22, 24, 29, 0.35) 0%, rgba(22, 24, 29, 0.78) 100%);
        }

        .article-hero .container {
            position: relative;
            z-index: 2;
        }

        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 24px;
            flex-wrap: wrap;
        }

        .breadcrumb-nav a {
            color: rgba(255, 255, 255, 0.75);
        }

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

        .breadcrumb-nav .sep {
            color: rgba(255, 255, 255, 0.4);
        }

        .breadcrumb-nav .current {
            color: rgba(255, 255, 255, 0.9);
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            max-width: 220px;
        }

        .article-head h1 {
            font-size: 40px;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 20px;
            max-width: 820px;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.85);
        }

        .article-meta .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        /* ---------- 文章正文区 ---------- */
        .article-body-section {
            padding: 0 0 64px;
        }

        .article-card {
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 48px;
            max-width: 860px;
            margin: -40px auto 0;
            position: relative;
            z-index: 3;
        }

        .article-content {
            font-size: 16px;
            line-height: 1.8;
            color: #333;
        }

        .article-content p {
            font-size: 17px;
            line-height: 1.8;
            color: #333;
            margin-bottom: 24px;
        }

        .article-content h2 {
            font-size: 28px;
            font-weight: 700;
            margin: 40px 0 16px;
            color: var(--color-text);
        }

        .article-content h3 {
            font-size: 22px;
            font-weight: 700;
            margin: 32px 0 12px;
            color: var(--color-text);
        }

        .article-content blockquote {
            border-left: 4px solid var(--color-primary);
            padding: 16px 24px;
            background: #F0FDF4;
            border-radius: 8px;
            font-style: italic;
            margin: 24px 0;
            color: #444;
        }

        .article-content img {
            width: 100%;
            border-radius: var(--radius-md);
            margin: 24px 0;
        }

        .article-content a {
            color: var(--color-primary-dark);
            border-bottom: 1px solid transparent;
        }

        .article-content a:hover {
            border-bottom-color: var(--color-primary-dark);
        }

        .article-content ul,
        .article-content ol {
            padding-left: 24px;
            margin-bottom: 24px;
        }

        .article-content ul {
            list-style: disc;
        }

        .article-content ol {
            list-style: decimal;
        }

        .article-content li {
            margin-bottom: 8px;
        }

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            font-size: 15px;
        }

        .article-content table th,
        .article-content table td {
            border: 1px solid var(--color-border);
            padding: 12px;
            text-align: left;
        }

        .article-content table th {
            background: var(--color-light);
            font-weight: 600;
        }

        .article-content pre {
            background: var(--color-dark);
            color: #d4e6f0;
            padding: 20px;
            border-radius: var(--radius-md);
            overflow-x: auto;
            font-size: 14px;
            line-height: 1.7;
            margin: 24px 0;
        }

        .article-content code {
            font-family: "SFMono-Regular", Consolas, monospace;
        }

        /* 文末标签 + 分享 */
        .article-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 40px;
            padding-top: 32px;
            border-top: 1px solid var(--color-border);
        }

        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag {
            display: inline-block;
            background: rgba(0, 200, 83, 0.1);
            color: var(--color-primary-dark);
            font-size: 12px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 999px;
        }

        .article-share {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--color-text-secondary);
        }

        .share-icon {
            width: 34px;
            height: 34px;
            border-radius: 8px;
            background: var(--color-light);
            color: var(--color-text-secondary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            transition: var(--trans);
        }

        .share-icon:hover {
            background: var(--color-primary);
            color: #fff;
        }

        .article-back {
            margin-top: 32px;
            display: flex;
            justify-content: center;
        }

        .article-back .btn-outline {
            border-color: var(--color-primary-dark);
            color: var(--color-primary-dark);
            padding: 10px 28px;
            font-size: 14px;
        }

        .article-back .btn-outline:hover {
            background: var(--color-primary-dark);
            color: #fff;
            border-color: var(--color-primary-dark);
        }

        /* 空状态 */
        .article-empty {
            text-align: center;
            padding: 60px 20px;
        }

        .article-empty i {
            font-size: 52px;
            color: #CBD5E1;
            margin-bottom: 16px;
            display: block;
        }

        .article-empty h2 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--color-text);
        }

        .article-empty p {
            color: var(--color-text-secondary);
            margin-bottom: 24px;
        }

        /* ---------- 相关推荐 ---------- */
        .related-section {
            padding: 0 0 80px;
        }

        .section-header {
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
            margin-bottom: 36px;
        }

        .section-header h2 {
            font-size: 32px;
            font-weight: 700;
            margin: 0;
            color: var(--color-text);
            position: relative;
            padding-bottom: 12px;
        }

        .section-header h2::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 48px;
            height: 3px;
            background: var(--color-primary);
            border-radius: 4px;
        }

        .section-more {
            font-size: 15px;
            color: var(--color-text-secondary);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .section-more:hover {
            color: var(--color-primary-dark);
        }

        .related-card {
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            display: block;
            transition: var(--trans);
            height: 100%;
            border: 1px solid var(--color-border);
        }

        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }

        .related-thumb {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
        }

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

        .related-card:hover .related-thumb img {
            transform: scale(1.05);
        }

        .card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(0, 200, 83, 0.92);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 999px;
            z-index: 2;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
        }

        .related-body {
            padding: 20px;
        }

        .related-body h3 {
            font-size: 16px;
            font-weight: 600;
            line-height: 1.55;
            margin-bottom: 10px;
            color: var(--color-text);
        }

        .related-body h3:hover {
            color: var(--color-primary-dark);
        }

        .related-date {
            font-size: 13px;
            color: var(--color-text-secondary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        /* ---------- CTA 区 ---------- */
        .cta-section {
            background: var(--color-primary-dark);
            text-align: center;
            padding: 80px 0;
            position: relative;
            overflow: hidden;
            color: #fff;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            right: -80px;
            top: -80px;
            width: 260px;
            height: 260px;
            border: 2px solid rgba(255, 255, 255, 0.12);
            border-radius: 50%;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            left: -60px;
            bottom: -60px;
            width: 160px;
            height: 160px;
            border: 2px solid rgba(255, 255, 255, 0.08);
            border-radius: 50%;
        }

        .cta-section .container {
            position: relative;
            z-index: 2;
        }

        .cta-section h2 {
            font-size: 36px;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .cta-section p {
            font-size: 17px;
            opacity: 0.92;
            margin-bottom: 32px;
            max-width: 640px;
            margin-left: auto;
            margin-right: auto;
        }

        .cta-buttons {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 16px;
        }

        .cta-buttons .btn-primary {
            background: var(--color-accent);
            border-color: var(--color-accent);
        }

        .cta-buttons .btn-outline {
            border-color: rgba(255, 255, 255, 0.7);
        }

        .cta-buttons .btn-outline:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
        }

        /* ---------- 页脚 ---------- */
        .site-footer {
            background: #101114;
            color: rgba(255, 255, 255, 0.7);
            padding: 64px 0 0;
            border-top: 2px solid transparent;
            border-image: linear-gradient(90deg, var(--color-primary) 0%, var(--color-accent) 100%) 1;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            padding-bottom: 48px;
        }

        .footer-brand .logo-area {
            font-size: 17px;
            margin-bottom: 14px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 14px;
            max-width: 280px;
        }

        .footer-title {
            font-size: 14px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }

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

        .footer-links li {
            margin-bottom: 11px;
        }

        .footer-links a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
        }

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

        .footer-contact-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 13px;
            line-height: 1.5;
        }

        .footer-contact-list i {
            color: var(--color-primary);
            margin-top: 4px;
            width: 16px;
            flex-shrink: 0;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            text-align: center;
            padding: 22px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }

        /* ---------- 响应式 ---------- */
        @media (min-width: 768px) {
            .main-nav {
                display: flex;
            }

            .mobile-toggle {
                display: none;
            }

            .mobile-menu {
                display: none;
            }
        }

        @media (max-width: 991.98px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 767.98px) {
            body {
                padding-top: 64px;
            }

            .site-header {
                height: 64px;
            }

            .header-inner {
                height: 64px;
            }

            .mobile-menu {
                top: 64px;
            }

            .logo-text {
                font-size: 15px;
            }

            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 14px;
            }

            .live-badge {
                display: none;
            }

            .article-hero {
                padding: 90px 0 70px;
            }

            .article-head h1 {
                font-size: 30px;
            }

            .article-meta {
                font-size: 13px;
                gap: 12px;
            }

            .article-card {
                padding: 28px 20px;
                margin-top: -28px;
                border-radius: var(--radius-md);
            }

            .article-content p {
                font-size: 16px;
            }

            .article-content h2 {
                font-size: 24px;
            }

            .article-content h3 {
                font-size: 20px;
            }

            .article-footer {
                flex-direction: column;
                align-items: flex-start;
            }

            .cta-section {
                padding: 60px 0;
            }

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

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

        @media (max-width: 575.98px) {
            .section-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

            .section-header h2 {
                font-size: 26px;
            }

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

            .breadcrumb-nav {
                font-size: 13px;
            }

            .breadcrumb-nav .current {
                max-width: 140px;
            }
        }

        @media (max-width: 390px) {
            .header-actions .btn {
                display: none;
            }

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

        /* 焦点状态 */
        a:focus-visible,
        button:focus-visible {
            outline: 3px solid rgba(0, 200, 83, 0.5);
            outline-offset: 2px;
            border-radius: 4px;
        }

/* roulang page: category2 */
:root {
  --primary: #00C853;
  --primary-dark: #00A844;
  --primary-light: rgba(0, 200, 83, 0.12);
  --accent: #FF6D00;
  --accent-hover: #FF8124;
  --dark: #16181D;
  --deep-dark: #101114;
  --light-bg: #F5F6F8;
  --card-bg: #FFFFFF;
  --text-main: #1A1D24;
  --text-secondary: #6B7280;
  --text-muted: #9CA3AF;
  --border: #E5E7EB;
  --radius-card: 16px;
  --radius-btn: 10px;
  --radius-tag: 999px;
  --radius-img: 12px;
  --shadow: 0 8px 24px rgba(26, 29, 36, 0.06);
  --shadow-hover: 0 12px 32px rgba(26, 29, 36, 0.12);
  --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

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

img {
  max-width: 100%;
  height: auto;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color 0.25s ease;
}

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

ul, ol {
  list-style: none;
}

button, input {
  font-family: inherit;
}

.container {
  max-width: 1200px;
  padding-left: 20px;
  padding-right: 20px;
}

/* ===== Buttons ===== */
.btn-custom {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 32px;
  font-weight: 700;
  font-size: 16px;
  border-radius: var(--radius-btn);
  border: none;
  transition: all 0.25s ease;
  cursor: pointer;
  line-height: 1.4;
}

.btn-primary-green {
  background: var(--primary);
  color: #fff;
}

.btn-primary-green:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 200, 83, 0.3);
}

.btn-outline-white {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.7);
}

.btn-outline-white:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
}

.btn-accent {
  background: var(--accent);
  color: #fff;
}

.btn-accent:hover {
  background: var(--accent-hover);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(255, 109, 0, 0.3);
}

/* ===== Navigation ===== */
.main-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(22, 24, 29, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  height: 80px;
  display: flex;
  align-items: center;
}

.main-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

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

.logo-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 17px;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.logo-text strong {
  color: #fff;
  font-size: 16px;
  font-weight: 800;
  letter-spacing: 0.5px;
}

.logo-text span {
  color: rgba(255, 255, 255, 0.7);
  font-size: 11px;
  font-weight: 500;
}

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

.main-nav a {
  color: rgba(255, 255, 255, 0.8);
  font-size: 16px;
  font-weight: 500;
  position: relative;
  padding: 6px 0;
  transition: color 0.25s ease;
}

.main-nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width 0.3s ease;
  border-radius: 2px;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--primary);
}

.main-nav a:hover::after,
.main-nav a.active::after {
  width: 100%;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}

.status-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(0, 200, 83, 0.15);
  padding: 5px 14px;
  border-radius: var(--radius-tag);
  font-size: 13px;
  color: #fff;
  font-weight: 500;
  white-space: nowrap;
}

.status-badge .dot {
  width: 7px;
  height: 7px;
  background: var(--primary);
  border-radius: 50%;
  animation: pulse 1.8s infinite;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(0, 200, 83, 0.5); }
  50% { box-shadow: 0 0 0 5px rgba(0, 200, 83, 0); }
}

.nav-cta {
  padding: 10px 24px;
  font-size: 14px;
  border-radius: var(--radius-btn);
  font-weight: 600;
}

.nav-toggle {
  display: none;
  background: transparent;
  border: none;
  color: #fff;
  font-size: 22px;
  cursor: pointer;
  padding: 6px;
}

/* Mobile Nav */
.mobile-menu {
  display: none;
  position: fixed;
  top: 80px;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(22, 24, 29, 0.98);
  z-index: 999;
  padding: 32px 24px;
  flex-direction: column;
  gap: 20px;
  backdrop-filter: blur(12px);
}

.mobile-menu.show {
  display: flex;
}

.mobile-menu a {
  color: rgba(255, 255, 255, 0.85);
  font-size: 18px;
  font-weight: 600;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.mobile-menu a.active {
  color: var(--primary);
}

.mobile-menu .mobile-cta {
  margin-top: 16px;
  text-align: center;
}

/* ===== Hero ===== */
.category-hero {
  position: relative;
  padding: 140px 0 80px;
  background: linear-gradient(135deg, rgba(22, 24, 29, 0.88), rgba(22, 24, 29, 0.72)), url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
  color: #fff;
  border-bottom: 4px solid var(--primary);
}

.category-hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, rgba(0, 200, 83, 0.2) 0%, transparent 70%);
  pointer-events: none;
}

.category-hero::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 100%);
  opacity: 0.7;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 48px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-title {
  font-size: 40px;
  font-weight: 900;
  line-height: 1.25;
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}

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

.hero-subtitle {
  font-size: 18px;
  color: rgba(255, 255, 255, 0.8);
  max-width: 520px;
  line-height: 1.8;
  margin-bottom: 8px;
}

.hero-stats {
  display: flex;
  gap: 32px;
  margin-top: 24px;
}

.hero-stats .stat-item {
  text-align: left;
}

.hero-stats .stat-num {
  font-size: 30px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
}

.hero-stats .stat-label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 4px;
}

.hero-info-card {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-card);
  padding: 24px;
  backdrop-filter: blur(6px);
}

.hero-info-card .info-title {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.hero-info-card .info-title i {
  color: var(--primary);
}

.hero-info-card ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.hero-info-card ul li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.75);
}

.hero-info-card ul li i {
  color: var(--primary);
  font-size: 12px;
}

/* ===== Section General ===== */
.section {
  padding: 80px 0;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 40px;
  gap: 24px;
}

.section-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 8px;
  display: block;
}

.section-title {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-main);
  margin: 0;
}

.section-desc {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.8;
  max-width: 280px;
}

/* ===== Intro ===== */
.intro-section {
  padding-top: 60px;
}

.intro-card {
  background: var(--card-bg);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow);
  padding: 48px;
  position: relative;
  overflow: hidden;
}

.intro-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 6px;
  height: 100%;
  background: linear-gradient(180deg, var(--primary), var(--accent));
}

.intro-card p {
  font-size: 16px;
  line-height: 1.9;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.intro-card p:last-child {
  margin-bottom: 0;
}

.intro-card strong {
  color: var(--text-main);
}

/* ===== Category Cards ===== */
.encyclopedia-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.ency-card {
  background: var(--card-bg);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
}

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

.ency-card-image {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

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

.ency-card:hover .ency-card-image img {
  transform: scale(1.05);
}

.ency-card-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(0, 200, 83, 0.88);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: var(--radius-tag);
  backdrop-filter: blur(4px);
}

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

.ency-card-body h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.4;
}

.ency-card-body h3 a {
  color: var(--text-main);
}

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

.ency-card-body p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  flex: 1;
  margin-bottom: 16px;
}

.ency-card-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.25s ease;
}

.ency-card-link:hover {
  gap: 10px;
  color: var(--primary-dark);
}

/* ===== Feature Path ===== */
.feature-section {
  background: var(--dark);
  color: #fff;
  position: relative;
  overflow: hidden;
}

.feature-section::before {
  content: '';
  position: absolute;
  bottom: -80px;
  right: -80px;
  width: 240px;
  height: 240px;
  border: 3px solid rgba(0, 200, 83, 0.15);
  border-radius: 50%;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  position: relative;
  z-index: 1;
}

.feature-item {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-card);
  padding: 32px;
  transition: all 0.3s ease;
}

.feature-item:hover {
  background: rgba(0, 200, 83, 0.08);
  border-color: rgba(0, 200, 83, 0.3);
  transform: translateY(-4px);
}

.feature-icon {
  width: 48px;
  height: 48px;
  background: rgba(0, 200, 83, 0.15);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--primary);
  margin-bottom: 18px;
}

.feature-item h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}

.feature-item p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.8;
}

.feature-section .section-title {
  color: #fff;
}

.feature-section .section-desc {
  color: rgba(255, 255, 255, 0.6);
}

/* ===== Stats Bar ===== */
.stats-bar {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  padding: 60px 0;
  color: #fff;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}

.stats-grid .stat-num {
  font-size: 40px;
  font-weight: 800;
  line-height: 1.2;
}

.stats-grid .stat-label {
  font-size: 14px;
  opacity: 0.85;
  margin-top: 8px;
}

/* ===== Usage Sections ===== */
.usage-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  background: var(--card-bg);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow);
  overflow: hidden;
  border: 1px solid var(--border);
}

.usage-image {
  height: 100%;
  min-height: 320px;
  overflow: hidden;
}

.usage-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.usage-content {
  padding: 40px;
}

.usage-content .tag {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary-dark);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: var(--radius-tag);
  margin-bottom: 14px;
}

.usage-content h2 {
  font-size: 26px;
  font-weight: 700;
  margin-bottom: 16px;
  line-height: 1.4;
}

.usage-content p {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.9;
  margin-bottom: 16px;
}

.usage-list {
  display: grid;
  gap: 14px;
  margin: 20px 0;
}

.usage-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: var(--text-main);
  line-height: 1.6;
}

.usage-list li i {
  color: var(--primary);
  margin-top: 4px;
  flex-shrink: 0;
}

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

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--light-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  margin-bottom: 14px;
  overflow: hidden;
  transition: border-color 0.3s ease;
}

.faq-item.active {
  border-color: var(--primary);
}

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

.faq-question .faq-icon {
  width: 28px;
  height: 28px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
  transition: all 0.3s ease;
  flex-shrink: 0;
}

.faq-item.active .faq-icon {
  background: var(--primary);
  color: #fff;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

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

/* ===== CTA ===== */
.cta-section {
  background: linear-gradient(135deg, rgba(0, 168, 68, 0.92), rgba(0, 200, 83, 0.85)), url('/assets/images/backpic/back-3.webp') center center / cover no-repeat;
  padding: 90px 0;
  color: #fff;
  text-align: center;
  position: relative;
}

.cta-section h2 {
  font-size: 34px;
  font-weight: 800;
  margin-bottom: 16px;
}

.cta-section p {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.85);
  max-width: 560px;
  margin: 0 auto 32px;
  line-height: 1.8;
}

.cta-section .btn {
  margin: 0 8px;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--deep-dark);
  color: rgba(255, 255, 255, 0.7);
  padding-top: 70px;
  border-top: 3px solid transparent;
  border-image: linear-gradient(90deg, var(--primary), var(--accent)) 1;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
}

.footer-brand .logo-area {
  margin-bottom: 16px;
}

.footer-brand .logo-text strong {
  font-size: 16px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: 0;
  max-width: 260px;
}

.footer-title {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.footer-links li,
.footer-contact-list li {
  margin-bottom: 12px;
}

.footer-links a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  transition: color 0.25s ease;
}

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

.footer-contact-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
}

.footer-contact-list li i {
  color: var(--primary);
  width: 16px;
  text-align: center;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 24px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
}

/* ===== Breadcrumb ===== */
.breadcrumb-bar {
  padding: 12px 0;
  background: transparent;
  margin-bottom: 0;
  font-size: 14px;
  color: var(--text-secondary);
}

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

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

.breadcrumb-bar i {
  font-size: 12px;
  margin: 0 8px;
  color: var(--text-muted);
}

/* ===== Responsive ===== */
@media (max-width: 992px) {
  .main-nav {
    display: none;
  }

  .nav-toggle {
    display: block;
  }

  .status-badge {
    display: none;
  }

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

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

  .usage-block {
    grid-template-columns: 1fr;
  }

  .usage-image {
    min-height: 240px;
  }
}

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

  .mobile-menu {
    top: 64px;
  }

  .category-hero {
    padding: 110px 0 56px;
  }

  .hero-title {
    font-size: 32px;
  }

  .hero-stats {
    gap: 20px;
    flex-wrap: wrap;
  }

  .section {
    padding: 56px 0;
  }

  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

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

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

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

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

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

  .intro-card {
    padding: 28px;
  }

  .usage-content {
    padding: 24px;
  }

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

  .cta-section p {
    font-size: 15px;
  }

  .logo-text span {
    display: none;
  }

  .nav-cta {
    padding: 8px 18px;
    font-size: 13px;
  }
}

@media (max-width: 520px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .faq-question {
    font-size: 14px;
    padding: 16px 18px;
  }

  .faq-answer-inner {
    padding: 0 18px 16px;
  }

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

@media (min-width: 1200px) {
  .encyclopedia-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}