/* roulang page: index */
:root {
  --brand: #0B3B2E;
  --gold: #B9934C;
  --dark: #081710;
  --bg: #F4F6F5;
  --card: #FFFFFF;
  --heading: #16211C;
  --body: #3D4A43;
  --muted: #7A8A80;
  --success: #1F9D63;
  --warning: #C9742E;
  --error: #C93A2E;
  --radius-card: 16px;
  --shadow-card: 0 2px 12px rgba(8,23,16,0.06);
  --shadow-hover: 0 8px 28px rgba(8,23,16,0.12);
  --border: #E4E9E6;
  --section-gap: 80px;
}

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

html {
  scroll-behavior: smooth;
}

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

a {
  text-decoration: none;
  color: inherit;
}

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

ul, ol {
  list-style: none;
}

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
  width: 100%;
}

.section {
  padding: 80px 0;
}

.h2 {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--heading);
  letter-spacing: -0.5px;
}

.h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--heading);
}

.subtitle {
  font-size: 14px;
  color: var(--muted);
  margin-top: 10px;
}

/* ===== Header ===== */
.site-header {
  position: relative;
  z-index: 1000;
  background: var(--dark);
  color: #fff;
  transition: all 0.3s ease;
}

.site-header.sticky {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(8,23,16,0.92);
  backdrop-filter: blur(8px);
  box-shadow: 0 4px 20px rgba(0,0,0,0.25);
}

.site-header.sticky .header-top-inner {
  padding: 8px 0;
}
.site-header.sticky .header-nav {
  padding: 6px 0;
}
.site-header.sticky .header-logo .logo-icon {
  font-size: 16px;
  padding: 4px 8px;
}

.header-top {
  position: relative;
  z-index: 1001;
}

.header-top-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 14px 0;
  transition: padding 0.3s ease;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.logo-icon {
  background: var(--brand);
  color: #fff;
  font-weight: 800;
  font-size: 18px;
  line-height: 1;
  padding: 7px 11px;
  border-radius: 9px;
  letter-spacing: -0.5px;
  transition: all 0.3s ease;
}

.logo-tag {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 2px;
  color: #f0f0f0;
}

.header-search {
  flex: 1;
  max-width: 560px;
  margin: 0 auto;
  position: relative;
}

.header-search .search-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  font-size: 14px;
  pointer-events: none;
}

.header-search input {
  width: 100%;
  height: 48px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.15);
  background: rgba(255,255,255,0.08);
  padding: 0 16px 0 44px;
  font-size: 15px;
  color: #fff;
  transition: all 0.3s ease;
}

.header-search input::placeholder {
  color: rgba(255,255,255,0.5);
}

.header-search input:focus {
  border-color: var(--gold);
  background: rgba(255,255,255,0.12);
  box-shadow: 0 0 0 3px rgba(185,147,76,0.15);
}

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

.btn-login {
  padding: 8px 18px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  color: #fff;
  border: 1px solid rgba(255,255,255,0.25);
  transition: all 0.25s;
}

.btn-login:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.btn-register {
  padding: 8px 18px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  background: var(--gold);
  color: var(--dark);
  transition: all 0.25s;
}

.btn-register:hover {
  background: #d4a65f;
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(185,147,76,0.3);
}

.header-nav {
  border-top: 1px solid rgba(255,255,255,0.06);
  position: relative;
  z-index: 1000;
}

.nav-inner {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 4px 0;
}

.nav-link {
  display: inline-block;
  padding: 10px 20px;
  font-size: 15px;
  font-weight: 500;
  color: rgba(255,255,255,0.8);
  border-radius: 8px;
  position: relative;
  transition: color 0.25s, background 0.25s;
}

.nav-link::after {
  content: '';
  position: absolute;
  left: 20px;
  right: 20px;
  bottom: 2px;
  height: 2px;
  background: var(--gold);
  border-radius: 2px;
  opacity: 0;
  transform: scaleX(0.5);
  transition: all 0.3s;
}

.nav-link:hover {
  color: #fff;
  background: rgba(255,255,255,0.06);
}

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

.nav-link.active::after {
  opacity: 1;
  transform: scaleX(1);
}

.hamburger {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 20px;
  cursor: pointer;
  transition: background 0.2s;
}

.hamburger:hover {
  background: rgba(255,255,255,0.1);
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 300px;
  max-width: 85vw;
  background: var(--dark);
  z-index: 2000;
  padding: 80px 24px 30px;
  transform: translateX(100%);
  transition: transform 0.35s ease;
  box-shadow: -10px 0 40px rgba(0,0,0,0.3);
  overflow-y: auto;
}

.mobile-menu.open {
  transform: translateX(0);
}

.mobile-menu .close-menu {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: rgba(255,255,255,0.08);
  color: #fff;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.mobile-menu .menu-search {
  margin-bottom: 24px;
}

.mobile-menu .menu-search input {
  width: 100%;
  height: 44px;
  border-radius: 10px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.15);
  padding: 0 14px 0 40px;
  color: #fff;
  font-size: 15px;
}

.mobile-menu .menu-search input::placeholder {
  color: rgba(255,255,255,0.5);
}

.mobile-menu a.menu-link {
  display: block;
  padding: 14px 10px;
  font-size: 16px;
  font-weight: 500;
  color: rgba(255,255,255,0.85);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: color 0.2s, padding-left 0.2s;
}

.mobile-menu a.menu-link:hover {
  color: var(--gold);
  padding-left: 16px;
}

.mobile-menu .menu-auth {
  display: flex;
  gap: 12px;
  margin-top: 30px;
}

.mobile-menu .menu-auth a {
  flex: 1;
  text-align: center;
  padding: 12px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 500;
}

.mobile-menu .menu-auth .login {
  border: 1px solid rgba(255,255,255,0.25);
  color: #fff;
}

.mobile-menu .menu-auth .reg {
  background: var(--gold);
  color: var(--dark);
  font-weight: 600;
}

.overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 1999;
  opacity: 0;
  transition: opacity 0.3s;
}

.overlay.show {
  display: block;
  opacity: 1;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  background: var(--dark);
  color: #fff;
  padding: 110px 0 90px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  opacity: 0.55;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8,23,16,0.85) 0%, rgba(8,23,16,0.55) 50%, rgba(8,23,16,0.9) 100%);
}

.hero-content {
  position: relative;
  max-width: 800px;
  padding: 20px 0;
}

.hero h1 {
  font-size: 44px;
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -1px;
  color: #fff;
  margin-bottom: 18px;
}

.hero-sub {
  font-size: 18px;
  color: rgba(255,255,255,0.75);
  margin-bottom: 36px;
}

.hero-cta {
  display: flex;
  gap: 16px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 32px;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  border: 1px solid transparent;
}

.btn-gold {
  background: var(--gold);
  color: var(--dark);
}

.btn-gold:hover {
  background: #d4a65f;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(185,147,76,0.35);
}

.btn-gold:active {
  transform: translateY(0);
}

.btn-outline {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.5);
}

.btn-outline:hover {
  border-color: #fff;
  background: rgba(255,255,255,0.1);
}

.btn-outline:active {
  transform: scale(0.98);
}

.hero-trust {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.hero-trust span {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
}

.hero-trust .divider {
  width: 1px;
  height: 16px;
  background: rgba(255,255,255,0.2);
}

/* ===== Value Section ===== */
.value-section {
  padding: 80px 0;
  background: var(--bg);
}

.value-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.value-text h2 {
  margin-bottom: 24px;
}

.value-text h2 .highlight {
  color: var(--brand);
}

.value-text p {
  color: var(--body);
  line-height: 1.8;
  margin-bottom: 16px;
  font-size: 15px;
}

.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 36px;
}

.stat-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-num {
  font-size: 34px;
  font-weight: 800;
  color: var(--brand);
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
}

.stat-label {
  font-size: 14px;
  color: var(--muted);
}

.value-image {
  position: relative;
}

.value-image img {
  border-radius: var(--radius-card);
  width: 100%;
  height: 400px;
  object-fit: cover;
  box-shadow: var(--shadow-card);
}

.value-image::after {
  content: '';
  position: absolute;
  right: -8px;
  bottom: -8px;
  width: 80%;
  height: 80%;
  border: 2px solid var(--gold);
  border-radius: var(--radius-card);
  z-index: -1;
  opacity: 0.4;
}

/* ===== Features ===== */
.features-section {
  padding: 80px 0;
  background: var(--card);
}

.features-head {
  text-align: center;
  margin-bottom: 48px;
}

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

.feature-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 28px;
  transition: all 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(11,59,46,0.2);
}

.feature-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: rgba(11,59,46,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--brand);
  font-size: 18px;
  margin-bottom: 18px;
  transition: background 0.3s;
}

.feature-card:hover .feature-icon {
  background: rgba(11,59,46,0.15);
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--heading);
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 16px;
}

.feature-link {
  font-size: 14px;
  color: var(--brand);
  font-weight: 600;
  transition: color 0.2s;
}

.feature-link:hover {
  color: var(--gold);
}

/* ===== Scenarios ===== */
.scenarios-section {
  padding: 80px 0;
  background: var(--bg);
}

.scenarios-head {
  text-align: center;
  margin-bottom: 48px;
}

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

.scenario-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 32px 28px;
  position: relative;
  overflow: hidden;
  transition: all 0.3s;
}

.scenario-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 24px;
  bottom: 24px;
  width: 3px;
  background: var(--gold);
  opacity: 0;
  transition: opacity 0.3s;
}

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

.scenario-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: rgba(185,147,76,0.3);
}

.scenario-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: rgba(11,59,46,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--brand);
  font-size: 18px;
  margin-bottom: 20px;
}

.scenario-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--heading);
  margin-bottom: 10px;
}

.scenario-card p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 18px;
}

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

.scenario-tags .tag {
  font-size: 12px;
  padding: 4px 12px;
  border-radius: 999px;
  background: #F0F2F0;
  color: #5A6A60;
  transition: all 0.2s;
}

.scenario-tags .tag:hover {
  background: rgba(11,59,46,0.08);
  color: var(--brand);
}

/* ===== Cases ===== */
.cases-section {
  padding: 80px 0;
  background: var(--card);
}

.cases-stats {
  background: var(--brand);
  border-radius: var(--radius-card);
  padding: 44px 48px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-bottom: 48px;
  color: #fff;
}

.cases-stats .stat-num {
  font-size: 36px;
  font-weight: 800;
  color: #fff;
}

.cases-stats .stat-label {
  color: rgba(255,255,255,0.7);
  font-size: 14px;
}

.cases-stats .case-stat-item {
  text-align: center;
  border-right: 1px solid rgba(255,255,255,0.1);
  padding: 0 20px;
}

.cases-stats .case-stat-item:last-child {
  border-right: none;
}

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

.case-main {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 24px;
}

.case-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: all 0.3s;
}

.case-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.case-card img {
  width: 100%;
  height: 240px;
  object-fit: cover;
}

.case-card .case-body {
  padding: 24px 28px;
}

.case-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--heading);
  margin-bottom: 8px;
}

.case-card p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 14px;
}

.case-result {
  font-size: 20px;
  font-weight: 700;
  color: var(--brand);
}

.case-main .case-card:first-child {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.case-main .case-card:first-child img {
  height: 100%;
  min-height: 250px;
}

/* ===== Pricing ===== */
.pricing-section {
  padding: 80px 0;
  background: var(--bg);
}

.pricing-head {
  text-align: center;
  margin-bottom: 16px;
}

.pricing-note {
  text-align: center;
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 40px;
}

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

.price-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 36px 32px;
  text-align: center;
  transition: all 0.3s;
  position: relative;
}

.price-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: rgba(11,59,46,0.2);
}

.price-card.recommended {
  border: 2px solid var(--gold);
  transform: translateY(-10px);
  box-shadow: 0 12px 36px rgba(8,23,16,0.1);
}

.price-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gold);
  color: var(--dark);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 18px;
  border-radius: 999px;
  letter-spacing: 1px;
}

.price-name {
  font-size: 18px;
  font-weight: 600;
  color: var(--heading);
  margin-bottom: 14px;
}

.price-amount {
  font-size: 44px;
  font-weight: 800;
  color: var(--heading);
  line-height: 1.2;
  margin-bottom: 20px;
}

.price-amount .currency {
  font-size: 20px;
  vertical-align: top;
  font-weight: 600;
}

.price-amount .period {
  font-size: 14px;
  color: var(--muted);
  font-weight: 400;
}

.price-list {
  text-align: left;
  margin-bottom: 28px;
}

.price-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 7px 0;
  font-size: 14px;
  color: var(--body);
  line-height: 1.6;
}

.price-list li .fa-check {
  color: var(--success);
  font-size: 13px;
  margin-top: 3px;
  flex-shrink: 0;
}

.price-list li .fa-circle-minus {
  color: #C3CCC6;
  font-size: 13px;
  margin-top: 3px;
  flex-shrink: 0;
}

.price-btn {
  display: block;
  width: 100%;
  height: 44px;
  border-radius: 10px;
  border: 1px solid var(--brand);
  color: var(--brand);
  font-size: 15px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.25s;
}

.price-btn:hover {
  background: rgba(11,59,46,0.05);
}

.price-btn.recommended-btn {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--dark);
}

.price-btn.recommended-btn:hover {
  background: #d4a65f;
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(185,147,76,0.35);
}

/* ===== News ===== */
.news-section {
  padding: 80px 0;
  background: var(--card);
}

.news-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 32px;
}

.news-more-link {
  font-size: 14px;
  color: var(--brand);
  font-weight: 500;
  transition: color 0.2s;
}

.news-more-link:hover {
  color: var(--gold);
}

.news-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.news-row {
  display: flex;
  align-items: center;
  gap: 20px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  transition: all 0.25s;
}

.news-row:hover {
  background: #F0F4F1;
  border-color: rgba(11,59,46,0.15);
  box-shadow: var(--shadow-card);
}

.news-badge {
  flex-shrink: 0;
  font-size: 12px;
  padding: 4px 14px;
  border-radius: 999px;
  background: rgba(185,147,76,0.12);
  border: 1px solid rgba(185,147,76,0.3);
  color: #8A6B30;
  font-weight: 600;
  white-space: nowrap;
}

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

.news-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--heading);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 4px;
  transition: color 0.2s;
}

.news-row:hover .news-title {
  color: var(--brand);
}

.news-desc {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-meta {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
}

.news-meta .date {
  font-size: 14px;
  color: var(--muted);
}

.read-link {
  font-size: 14px;
  color: var(--brand);
  font-weight: 500;
}

.news-empty {
  border: 2px dashed #D8DED9;
  border-radius: 16px;
  background: #F8FAF9;
  padding: 56px 20px;
  text-align: center;
  font-size: 16px;
  color: var(--muted);
}

/* ===== FAQ ===== */
.faq-section {
  padding: 80px 0;
  background: var(--bg);
}

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

.faq-left h2 {
  margin-bottom: 16px;
}

.faq-left p {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.8;
  margin-bottom: 20px;
}

.faq-left .contact-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 15px;
  color: var(--brand);
  font-weight: 500;
  transition: color 0.2s;
}

.faq-left .contact-link:hover {
  color: var(--gold);
}

.faq-item {
  border-bottom: 1px solid #D8DED9;
  padding: 18px 0;
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--heading);
  transition: color 0.25s;
  user-select: none;
}

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

.faq-question .faq-icon {
  font-size: 18px;
  color: var(--muted);
  transition: all 0.3s;
}

.faq-item.active .faq-question {
  color: var(--brand);
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
  color: var(--gold);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  padding: 0;
  font-size: 14px;
  color: var(--body);
  line-height: 1.75;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 12px 0 0;
}

/* ===== CTA ===== */
.cta-section {
  padding: 40px 0 80px;
  background: var(--bg);
}

.cta-banner {
  background: var(--brand);
  border-radius: var(--radius-card);
  padding: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}

.cta-banner h2 {
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 6px;
}

.cta-banner p {
  font-size: 15px;
  color: rgba(255,255,255,0.75);
}

.cta-btn {
  background: var(--gold);
  color: var(--dark);
  height: 48px;
  padding: 0 36px;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s;
  white-space: nowrap;
}

.cta-btn:hover {
  background: #d4a65f;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(185,147,76,0.4);
}

.cta-btn:active {
  transform: translateY(0);
}

/* ===== Footer ===== */
.site-footer {
  background: var(--dark);
  color: #fff;
  padding: 60px 0 30px;
}

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

.footer-brand .logo {
  margin-bottom: 14px;
}

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

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

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

.footer-col ul a {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  transition: color 0.2s;
}

.footer-col ul a:hover {
  color: var(--gold);
}

.footer-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  margin-bottom: 12px;
}

.footer-contact i {
  color: var(--gold);
  width: 16px;
  text-align: center;
  flex-shrink: 0;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 24px;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,0.45);
}

/* ===== Responsive ===== */
@media (max-width: 1279px) {
  .container {
    padding-left: 24px;
    padding-right: 24px;
  }
  
  .header-search {
    max-width: 360px;
  }
}

@media (max-width: 1023px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .scenarios-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .price-card.recommended {
    transform: translateY(-4px);
  }
  
  .case-main {
    grid-template-columns: 1fr;
  }
  
  .case-main .case-card:first-child {
    grid-column: 1;
    grid-template-columns: 1fr;
  }
  
  .case-main .case-card:first-child img {
    height: 220px;
  }
  
  .faq-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  
  .hero h1 {
    font-size: 36px;
  }
  
  .value-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  
  .value-image img {
    height: 320px;
  }
}

@media (max-width: 767px) {
  .section {
    padding: 48px 0;
  }
  
  .container {
    padding-left: 20px;
    padding-right: 20px;
  }
  
  .header-top-inner {
    flex-wrap: wrap;
    gap: 12px;
    padding: 12px 0;
  }
  
  .header-search {
    display: none;
  }
  
  .hamburger {
    display: flex;
    margin-left: auto;
  }
  
  .header-nav {
    display: none;
  }
  
  .auth-btns {
    display: none;
  }
  
  .hero {
    padding: 80px 0 60px;
  }
  
  .hero h1 {
    font-size: 30px;
    line-height: 1.25;
  }
  
  .hero-sub {
    font-size: 16px;
  }
  
  .hero-trust {
    gap: 12px;
  }
  
  .hero-trust .divider {
    display: none;
  }
  
  .stats-row {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .scenarios-grid {
    grid-template-columns: 1fr;
  }
  
  .pricing-grid {
    grid-template-columns: 1fr;
  }
  
  .price-card.recommended {
    transform: none;
  }
  
  .cases-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    padding: 32px 24px;
  }
  
  .cases-stats .case-stat-item {
    border-right: none;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding-bottom: 16px;
  }
  
  .case-stat-item:nth-child(3),
  .case-stat-item:nth-child(4) {
    border-bottom: none;
    padding-bottom: 0;
  }
  
  .news-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  
  .news-row {
    flex-wrap: wrap;
    gap: 10px;
    padding: 16px;
  }
  
  .news-main {
    flex-basis: 100%;
  }
  
  .news-meta {
    flex-direction: row;
    width: 100%;
    justify-content: space-between;
  }
  
  .cta-banner {
    padding: 32px 24px;
    flex-direction: column;
    text-align: center;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .h2 {
    font-size: 24px;
  }
  
  .site-header.sticky .header-top-inner {
    padding: 12px 0;
  }
}

@media (max-width: 520px) {
  .hero-trust {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }
  
  .value-image img {
    height: 240px;
  }
}

/* focus visible */
a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
  box-shadow: 0 0 0 4px rgba(11,59,46,0.15);
}

.btn:focus-visible {
  outline-color: var(--gold);
  box-shadow: 0 0 0 4px rgba(185,147,76,0.2);
}

/* roulang page: category1 */
:root {
            --brand: #0B3B2E;
            --gold: #B9934C;
            --dark: #081710;
            --bg: #F4F6F5;
            --card: #FFFFFF;
            --title: #16211C;
            --body: #3D4A43;
            --muted: #7A8A80;
            --border: #E4E9E6;
            --radius-card: 16px;
            --radius-btn: 12px;
            --shadow-card: 0 2px 12px rgba(8, 23, 16, 0.06);
            --shadow-hover: 0 8px 28px rgba(8, 23, 16, 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);
            font-size: 16px;
            font-weight: 400;
            line-height: 1.75;
            color: var(--body);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
            object-fit: cover;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color .25s ease;
        }
        button {
            border: none;
            background: none;
            cursor: pointer;
            font-family: inherit;
        }
        input {
            font-family: inherit;
            outline: none;
            border: none;
            background: none;
        }
        ul {
            list-style: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--dark);
            box-shadow: 0 4px 20px rgba(8, 23, 16, 0.18);
        }
        .header-top {
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .header-top-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            height: 68px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--brand);
            color: #fff;
            font-size: 16px;
            font-weight: 900;
            border-radius: 10px;
            padding: 8px 14px;
            letter-spacing: .5px;
        }
        .logo-tag {
            color: rgba(255, 255, 255, 0.85);
            font-size: 14px;
            font-weight: 500;
            letter-spacing: 1px;
        }
        .header-search {
            flex: 1;
            max-width: 560px;
            height: 48px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-btn);
            display: flex;
            align-items: center;
            padding: 0 16px;
            gap: 10px;
            transition: border-color .3s, box-shadow .3s, background .3s;
        }
        .header-search svg {
            width: 20px;
            height: 20px;
            stroke: rgba(255, 255, 255, 0.6);
            flex-shrink: 0;
        }
        .header-search input {
            flex: 1;
            color: #fff;
            font-size: 15px;
            background: transparent;
            height: 100%;
        }
        .header-search input::placeholder {
            color: rgba(255, 255, 255, 0.45);
        }
        .header-search:focus-within {
            border-color: var(--gold);
            background: rgba(255, 255, 255, 0.12);
            box-shadow: 0 0 0 4px rgba(11, 59, 46, 0.4);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .btn-login,
        .btn-register {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 40px;
            padding: 0 20px;
            border-radius: var(--radius-btn);
            font-size: 14px;
            font-weight: 600;
            transition: all .25s;
        }
        .btn-login {
            color: rgba(255, 255, 255, 0.85);
            border: 1px solid rgba(255, 255, 255, 0.25);
        }
        .btn-login:hover {
            border-color: var(--gold);
            color: var(--gold);
        }
        .btn-register {
            background: var(--gold);
            color: #16211C;
        }
        .btn-register:hover {
            background: #d0a65c;
            box-shadow: 0 4px 14px rgba(185, 147, 76, 0.35);
        }
        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 10px;
            color: #fff;
            font-size: 20px;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

        .header-nav {
            background: rgba(8, 23, 16, 0.92);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .nav-inner {
            display: flex;
            align-items: center;
            gap: 32px;
            height: 50px;
            overflow-x: auto;
        }
        .nav-link {
            position: relative;
            color: rgba(255, 255, 255, 0.78);
            font-size: 15px;
            font-weight: 500;
            white-space: nowrap;
            padding: 4px 0;
            transition: color .25s;
        }
        .nav-link::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 100%;
            height: 2px;
            background: var(--gold);
            border-radius: 2px;
            transform: scaleX(0);
            transform-origin: center;
            transition: transform .3s;
        }
        .nav-link:hover {
            color: #fff;
        }
        .nav-link:hover::after {
            transform: scaleX(1);
        }
        .nav-link.active {
            color: #fff;
            font-weight: 600;
        }
        .nav-link.active::after {
            transform: scaleX(1);
            background: var(--gold);
        }

        /* ===== Hero ===== */
        .page-hero {
            position: relative;
            background: linear-gradient(135deg, var(--dark) 0%, #0a2a20 100%);
            padding: 100px 0 90px;
            overflow: hidden;
            text-align: center;
        }
        .page-hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.45;
        }
        .page-hero::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(8, 23, 16, 0.88) 0%, rgba(8, 23, 16, 0.35) 100%);
            pointer-events: none;
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
        }
        .page-hero h1 {
            font-size: 44px;
            font-weight: 900;
            line-height: 1.2;
            color: #fff;
            letter-spacing: 1px;
            margin-bottom: 16px;
        }
        .page-hero .hero-sub {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 20px;
            letter-spacing: .5px;
        }
        .page-hero .hero-desc {
            max-width: 620px;
            margin: 0 auto 32px;
            font-size: 15px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.55);
        }
        .hero-btns {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            height: 48px;
            padding: 0 28px;
            background: var(--gold);
            color: #16211C;
            font-size: 15px;
            font-weight: 700;
            border-radius: var(--radius-btn);
            box-shadow: 0 6px 20px rgba(185, 147, 76, 0.3);
            transition: all .3s;
        }
        .btn-primary:hover {
            background: #d0a65c;
            transform: translateY(-2px);
            box-shadow: 0 10px 26px rgba(185, 147, 76, 0.4);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(185, 147, 76, 0.25);
        }
        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            height: 48px;
            padding: 0 28px;
            border: 1px solid rgba(255, 255, 255, 0.5);
            color: rgba(255, 255, 255, 0.9);
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-btn);
            transition: all .3s;
        }
        .btn-outline:hover {
            border-color: var(--gold);
            color: var(--gold);
            background: rgba(185, 147, 76, 0.08);
        }
        .hero-badges {
            display: flex;
            justify-content: center;
            gap: 24px;
            margin-top: 44px;
            flex-wrap: wrap;
        }
        .hero-badges .badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
        }
        .hero-badges .badge i {
            color: var(--gold);
            font-size: 15px;
        }
        .hero-badges .divider {
            width: 1px;
            height: 18px;
            background: rgba(255, 255, 255, 0.2);
        }

        /* ===== Section通用 ===== */
        .section {
            padding: 80px 0;
        }
        .section-bg {
            background: var(--card);
        }
        .section-head {
            text-align: center;
            margin-bottom: 56px;
        }
        .section-head h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--title);
            line-height: 1.3;
            margin-bottom: 12px;
        }
        .section-head p {
            font-size: 14px;
            color: var(--muted);
            max-width: 640px;
            margin: 0 auto;
        }

        /* ===== 平台概况 ===== */
        .overview-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }
        .overview-text h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--title);
            line-height: 1.3;
            margin-bottom: 20px;
        }
        .overview-text p {
            font-size: 16px;
            line-height: 1.85;
            color: var(--body);
            margin-bottom: 18px;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            margin-top: 32px;
        }
        .stat-item {
            border-left: 2px solid var(--gold);
            padding-left: 14px;
        }
        .stat-item strong {
            font-size: 34px;
            font-weight: 800;
            color: var(--brand);
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
            display: block;
        }
        .stat-item span {
            font-size: 14px;
            color: var(--muted);
            margin-top: 4px;
            display: block;
        }
        .overview-image {
            position: relative;
        }
        .overview-image img {
            width: 100%;
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-hover);
        }
        .overview-image::after {
            content: "";
            position: absolute;
            right: -10px;
            bottom: -10px;
            width: 100%;
            height: 100%;
            border: 2px solid var(--gold);
            border-radius: var(--radius-card);
            z-index: -1;
        }

        /* ===== 时间线 ===== */
        .timeline {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
            padding: 20px 0;
        }
        .timeline::before {
            content: "";
            position: absolute;
            left: 24px;
            top: 20px;
            bottom: 20px;
            width: 2px;
            background: linear-gradient(180deg, var(--brand), var(--gold));
            border-radius: 2px;
        }
        .timeline-item {
            position: relative;
            padding-left: 72px;
            margin-bottom: 40px;
        }
        .timeline-item:last-child {
            margin-bottom: 0;
        }
        .timeline-dot {
            position: absolute;
            left: 14px;
            top: 4px;
            width: 20px;
            height: 20px;
            border-radius: 50%;
            background: var(--card);
            border: 3px solid var(--brand);
            box-shadow: 0 0 0 4px rgba(11, 59, 46, 0.12);
        }
        .timeline-item.active .timeline-dot {
            border-color: var(--gold);
            box-shadow: 0 0 0 4px rgba(185, 147, 76, 0.2);
        }
        .timeline-content {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 24px 28px;
            box-shadow: var(--shadow-card);
            transition: box-shadow .3s, transform .3s;
        }
        .timeline-content:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }
        .timeline-year {
            font-size: 14px;
            font-weight: 700;
            color: var(--gold);
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 6px;
        }
        .timeline-content h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--title);
            margin-bottom: 8px;
        }
        .timeline-content p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.75;
        }

        /* ===== 服务体系 ===== */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .service-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px;
            transition: all .3s;
            position: relative;
            overflow: hidden;
        }
        .service-card::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 3px;
            height: 0;
            background: var(--gold);
            transition: height .3s;
        }
        .service-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: rgba(11, 59, 46, 0.2);
        }
        .service-card:hover::after {
            height: 100%;
        }
        .service-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(11, 59, 46, 0.08);
            color: var(--brand);
            font-size: 20px;
            margin-bottom: 20px;
            transition: background .3s, color .3s;
        }
        .service-card:hover .service-icon {
            background: rgba(11, 59, 46, 0.12);
            color: var(--brand);
        }
        .service-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--title);
            margin-bottom: 10px;
        }
        .service-card p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.75;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .service-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            color: var(--brand);
            font-weight: 600;
            margin-top: 16px;
            transition: color .25s;
        }
        .service-link:hover {
            color: var(--gold);
        }

        /* ===== 适用场景 ===== */
        .scenarios-section {
            background: var(--bg);
        }
        .scenarios-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .scenario-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 32px 28px;
            position: relative;
            transition: all .3s;
        }
        .scenario-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .scenario-card::before {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 3px;
            height: 0;
            background: var(--gold);
            transition: height .3s;
        }
        .scenario-card:hover::before {
            height: 60px;
        }
        .scenario-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--brand);
            background: rgba(11, 59, 46, 0.08);
            font-size: 22px;
            margin-bottom: 18px;
        }
        .scenario-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--title);
            margin-bottom: 8px;
        }
        .scenario-card p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.75;
            margin-bottom: 16px;
        }
        .scenario-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .scenario-tags .tag {
            display: inline-block;
            font-size: 12px;
            color: var(--muted);
            background: #F0F2F1;
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 4px 12px;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--card);
        }
        .faq-layout {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 60px;
        }
        .faq-left h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--title);
            margin-bottom: 14px;
        }
        .faq-left p {
            font-size: 14px;
            color: var(--muted);
            margin-bottom: 20px;
        }
        .faq-contact-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--brand);
        }
        .faq-contact-link:hover {
            color: var(--gold);
        }
        .faq-list {
            border-top: 1px solid var(--border);
        }
        .faq-item {
            border-bottom: 1px solid var(--border);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 22px 0;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--title);
            transition: color .3s;
            width: 100%;
            text-align: left;
            background: none;
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(11, 59, 46, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--brand);
            font-weight: 400;
            transition: transform .3s, background .3s, color .3s;
        }
        .faq-item.active .faq-question {
            color: var(--brand);
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background: rgba(185, 147, 76, 0.15);
            color: var(--gold);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .3s ease, padding .3s ease;
            font-size: 14px;
            color: var(--muted);
            line-height: 1.8;
            padding: 0;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 40px 22px 0;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 48px 0 80px;
            background: var(--bg);
        }
        .cta-box {
            background: var(--brand);
            border-radius: var(--radius-card);
            padding: 48px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
            box-shadow: 0 12px 40px rgba(11, 59, 46, 0.2);
        }
        .cta-box h2 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
        }
        .cta-box p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
        }
        .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            height: 46px;
            padding: 0 28px;
            background: var(--gold);
            color: #16211C;
            font-size: 15px;
            font-weight: 700;
            border-radius: var(--radius-btn);
            transition: all .3s;
            box-shadow: 0 4px 16px rgba(185, 147, 76, 0.3);
        }
        .cta-btn:hover {
            background: #d0a65c;
            transform: translateY(-2px);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 60px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.55);
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            transition: color .25s;
        }
        .footer-col ul li a:hover {
            color: var(--gold);
        }
        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-contact i {
            color: var(--gold);
            font-size: 14px;
            width: 18px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 20px;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.35);
        }
        .back-home {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-top: 40px;
            font-size: 14px;
            color: var(--brand);
            font-weight: 600;
            transition: color .25s;
        }
        .back-home:hover {
            color: var(--gold);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .overview-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .services-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .scenarios-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .header-search {
                max-width: 280px;
            }
        }
        @media (max-width: 767px) {
            .section {
                padding: 48px 0;
            }
            .page-hero {
                padding: 64px 0 60px;
            }
            .page-hero h1 {
                font-size: 30px;
            }
            .page-hero .hero-sub {
                font-size: 16px;
            }
            .header-top-inner {
                height: 60px;
            }
            .header-search {
                display: none;
            }
            .header-actions .btn-login {
                display: none;
            }
            .nav-toggle {
                display: flex;
                align-items: center;
                justify-content: center;
            }
            .header-nav {
                display: none;
            }
            .header-nav.open {
                display: block;
            }
            .nav-inner {
                flex-direction: column;
                gap: 0;
                height: auto;
                padding: 12px 24px 20px;
            }
            .nav-link {
                display: block;
                width: 100%;
                padding: 14px 0;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            }
            .nav-link::after {
                display: none;
            }
            .section-head h2 {
                font-size: 24px;
            }
            .overview-text h2 {
                font-size: 24px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .services-grid {
                grid-template-columns: 1fr;
            }
            .scenarios-grid {
                grid-template-columns: 1fr;
            }
            .faq-layout {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .cta-box {
                padding: 32px 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-badges {
                gap: 12px;
            }
            .hero-badges .divider {
                display: none;
            }
            .timeline-item {
                padding-left: 60px;
            }
            .timeline::before {
                left: 18px;
            }
            .timeline-dot {
                left: 10px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .hero-btns {
                flex-direction: column;
                align-items: center;
            }
            .btn-primary,
            .btn-outline {
                width: 100%;
                justify-content: center;
            }
        }

/* roulang page: article */
:root {
    --brand: #0B3B2E;
    --gold: #B9934C;
    --dark: #081710;
    --bg: #F4F6F5;
    --card: #FFFFFF;
    --title: #16211C;
    --text: #3D4A43;
    --weak: #7A8A80;
    --border: #E4E9E6;
    --radius-card: 16px;
    --radius-btn: 12px;
    --shadow-card: 0 2px 12px rgba(8,23,16,0.06);
    --shadow-hover: 0 8px 28px rgba(8,23,16,0.12);
    --container-w: 1200px;
}
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
html {
    scroll-behavior: smooth;
}
body {
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.75;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}
a {
    color: inherit;
    text-decoration: none;
    transition: color .25s, background .25s, border-color .25s, box-shadow .25s, transform .25s, opacity .25s;
}
img {
    max-width: 100%;
    display: block;
    object-fit: cover;
}
button,
input {
    font-family: inherit;
    font-size: 100%;
    border: none;
    outline: none;
}
ul,
ol {
    list-style: none;
}
.container {
    max-width: var(--container-w);
    margin: 0 auto;
    padding-left: 24px;
    padding-right: 24px;
}
::selection {
    background: rgba(185, 147, 76, .25);
}
:focus-visible {
    outline: 1px solid var(--brand);
    outline-offset: 2px;
    box-shadow: 0 0 0 3px rgba(11, 59, 46, .12);
}

/* ===== Header ===== */
.site-header {
    background: var(--dark);
    position: relative;
    z-index: 100;
}
.site-header.scrolled {
    position: sticky;
    top: 0;
    background: rgba(8, 23, 16, .92);
    backdrop-filter: blur(8px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, .15);
    transition: background .3s, box-shadow .3s;
}
.header-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding-top: 18px;
    padding-bottom: 18px;
    position: relative;
}
.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}
.logo-icon {
    background: var(--brand);
    color: #fff;
    font-weight: 800;
    font-size: 16px;
    letter-spacing: .5px;
    border-radius: 10px;
    padding: 9px 14px;
    display: inline-block;
    line-height: 1;
}
.logo-tag {
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 1px;
    white-space: nowrap;
}
.search-box {
    flex: 1;
    max-width: 560px;
    height: 48px;
    background: rgba(255, 255, 255, .08);
    border: 1px solid rgba(255, 255, 255, .14);
    border-radius: var(--radius-btn);
    display: flex;
    align-items: center;
    padding: 0 16px;
    gap: 10px;
    transition: border-color .3s, box-shadow .3s, background .3s;
}
.search-box:hover {
    border-color: rgba(255, 255, 255, .28);
}
.search-box:focus-within {
    border-color: var(--gold);
    background: rgba(255, 255, 255, .1);
    box-shadow: 0 0 0 4px rgba(185, 147, 76, .15);
}
.search-icon {
    width: 20px;
    height: 20px;
    color: #fff;
    opacity: .7;
    flex-shrink: 0;
}
.search-box input {
    flex: 1;
    background: transparent;
    color: #fff;
    font-size: 14px;
    caret-color: var(--gold);
}
.search-box input::placeholder {
    color: rgba(255, 255, 255, .5);
}
.header-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}
.btn-login {
    color: rgba(255, 255, 255, .8);
    font-size: 14px;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: var(--radius-btn);
    border: 1px solid transparent;
    transition: color .25s, border-color .25s, background .25s;
}
.btn-login:hover {
    color: #fff;
    border-color: rgba(255, 255, 255, .25);
}
.btn-login:active {
    background: rgba(255, 255, 255, .1);
}
.btn-gold {
    background: var(--gold);
    color: var(--dark);
    font-weight: 700;
    font-size: 14px;
    padding: 10px 24px;
    border-radius: var(--radius-btn);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    cursor: pointer;
    border: 2px solid var(--gold);
    transition: background .25s, border-color .25s, transform .2s, box-shadow .25s;
}
.btn-gold:hover {
    background: #a7823e;
    border-color: #a7823e;
    box-shadow: 0 4px 16px rgba(185, 147, 76, .3);
    transform: translateY(-1px);
}
.btn-gold:active {
    transform: translateY(0);
    box-shadow: none;
}
.btn-sm {
    padding: 8px 18px;
    font-size: 13px;
}
.btn-outline-light {
    background: transparent;
    color: #fff;
    border: 1px solid rgba(255, 255, 255, .5);
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 24px;
    border-radius: var(--radius-btn);
    cursor: pointer;
    transition: border-color .25s, background .25s, transform .2s, box-shadow .25s;
}
.btn-outline-light:hover {
    border-color: #fff;
    background: rgba(255, 255, 255, .08);
    transform: translateY(-1px);
}
.btn-outline-light:active {
    transform: translateY(0);
}
.btn-primary {
    background: var(--brand);
    color: #fff;
    font-weight: 600;
    padding: 10px 24px;
    border-radius: var(--radius-btn);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background .25s, transform .2s, box-shadow .25s;
}
.btn-primary:hover {
    background: #0e4a38;
    box-shadow: 0 4px 16px rgba(11, 59, 46, .25);
    transform: translateY(-1px);
}
.btn-primary:active {
    transform: translateY(0);
}
.menu-toggle {
    display: none;
    background: transparent;
    color: #fff;
    font-size: 22px;
    cursor: pointer;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-btn);
    align-items: center;
    justify-content: center;
    transition: background .25s;
}
.menu-toggle:hover {
    background: rgba(255, 255, 255, .1);
}
.header-nav {
    border-top: 1px solid rgba(255, 255, 255, .06);
}
.nav-inner {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: nowrap;
    padding-top: 6px;
    padding-bottom: 6px;
    overflow-x: auto;
}
.nav-link {
    color: rgba(255, 255, 255, .72);
    font-size: 15px;
    font-weight: 500;
    padding: 10px 18px;
    border-bottom: 2px solid transparent;
    border-radius: 8px 8px 0 0;
    white-space: nowrap;
    transition: color .25s, background .25s, border-color .25s;
}
.nav-link:hover {
    color: #fff;
    background: rgba(255, 255, 255, .06);
}
.nav-link.active {
    color: var(--gold);
    border-bottom-color: var(--gold);
}
.nav-link:active {
    background: rgba(255, 255, 255, .1);
}
.mobile-search {
    display: none;
}

/* ===== Breadcrumb ===== */
.breadcrumb {
    margin-bottom: 20px;
}
.breadcrumb ol {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px;
    font-size: 14px;
    color: var(--weak);
}
.breadcrumb li {
    display: flex;
    align-items: center;
    gap: 6px;
}
.breadcrumb li::after {
    content: "/";
    color: #c3cdc7;
    font-size: 13px;
}
.breadcrumb li:last-child::after {
    display: none;
}
.breadcrumb a {
    color: var(--brand);
    font-weight: 500;
}
.breadcrumb a:hover {
    color: var(--gold);
}
.breadcrumb [aria-current="page"] {
    color: var(--weak);
    font-weight: 400;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 240px;
}

/* ===== Article Section ===== */
.article-section {
    padding: 56px 0 40px;
    background: var(--bg);
}
.article-layout {
    max-width: 860px;
    margin: 0 auto;
}
.article-card {
    background: var(--card);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    border: 1px solid var(--border);
    padding: 44px 48px;
    transition: box-shadow .3s;
}
.article-card:hover {
    box-shadow: var(--shadow-hover);
}
.article-title {
    font-size: 36px;
    font-weight: 700;
    line-height: 1.25;
    color: var(--title);
    margin-bottom: 18px;
    letter-spacing: .5px;
}
.article-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 14px;
    color: var(--weak);
    padding-bottom: 24px;
    border-bottom: 1px solid #eef1ef;
    margin-bottom: 28px;
}
.article-meta span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.article-meta i {
    font-size: 13px;
    color: #a7b3ac;
}
.badge-bg {
    background: rgba(185, 147, 76, .14);
    color: #8a6a2f;
    font-size: 12px;
    font-weight: 600;
    padding: 4px 14px;
    border-radius: 999px;
    display: inline-block;
}

/* ===== Article Content ===== */
.article-content {
    font-size: 17px;
    line-height: 1.9;
    color: var(--text);
}
.article-content p {
    margin-bottom: 24px;
}
.article-content h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--title);
    margin: 36px 0 16px;
    line-height: 1.4;
}
.article-content h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--title);
    margin: 28px 0 12px;
    line-height: 1.4;
}
.article-content h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--title);
    margin: 20px 0 10px;
}
.article-content blockquote {
    border-left: 4px solid var(--gold);
    background: #F7F5F0;
    padding: 18px 24px;
    border-radius: 0 var(--radius-btn) var(--radius-btn) 0;
    margin: 24px 0;
    color: #5f6b64;
    font-style: normal;
}
.article-content blockquote p {
    margin-bottom: 8px;
}
.article-content blockquote p:last-child {
    margin-bottom: 0;
}
.article-content img {
    border-radius: 12px;
    margin: 24px 0;
    width: 100%;
    height: auto;
}
.article-content figure {
    margin: 24px 0;
}
.article-content figure img {
    margin: 0;
}
.article-content figcaption {
    font-size: 14px;
    color: var(--weak);
    text-align: center;
    margin-top: 10px;
}
.article-content ul,
.article-content ol {
    margin: 0 0 24px 24px;
    padding: 0;
}
.article-content ul {
    list-style: disc;
}
.article-content ol {
    list-style: decimal;
}
.article-content li {
    margin-bottom: 8px;
}
.article-content a {
    color: var(--brand);
    border-bottom: 1px solid rgba(11, 59, 46, .3);
    font-weight: 500;
    transition: border-color .25s, color .25s;
}
.article-content a:hover {
    color: var(--gold);
    border-color: var(--gold);
}
.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    font-size: 15px;
}
.article-content th,
.article-content td {
    border: 1px solid var(--border);
    padding: 12px 16px;
    text-align: left;
}
.article-content th {
    background: #F0F4F1;
    font-weight: 600;
    color: var(--title);
}
.article-content code {
    background: #eef1ef;
    border-radius: 6px;
    padding: 2px 8px;
    font-size: 14px;
    color: var(--brand);
}
.article-content pre {
    background: var(--dark);
    color: #dce7e0;
    border-radius: 12px;
    padding: 24px;
    overflow-x: auto;
    margin: 24px 0;
    font-size: 14px;
    line-height: 1.7;
}
.article-content pre code {
    background: transparent;
    padding: 0;
    color: inherit;
}

/* ===== Article Empty ===== */
.article-empty {
    text-align: center;
    padding: 60px 20px;
}
.article-empty p {
    font-size: 18px;
    color: var(--weak);
    margin-bottom: 24px;
}

/* ===== Article Footer ===== */
.article-footer {
    margin-top: 40px;
    padding-top: 28px;
    border-top: 1px solid #eef1ef;
}
.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 24px;
}
.tag {
    background: #eef1ef;
    color: #5f6b64;
    font-size: 13px;
    font-weight: 500;
    padding: 4px 14px;
    border-radius: 999px;
    transition: background .25s, color .25s;
    cursor: default;
}
.tag:hover {
    background: rgba(185, 147, 76, .15);
    color: #8a6a2f;
}
.article-pagination {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}
.page-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text);
    background: #f5f7f6;
    border: 1px solid var(--border);
    padding: 10px 18px;
    border-radius: var(--radius-btn);
    transition: border-color .25s, color .25s, background .25s, transform .2s;
}
.page-link:hover {
    color: var(--brand);
    border-color: var(--brand);
    background: #fff;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(8, 23, 16, .08);
}
.page-link:active {
    transform: translateY(0);
}

/* ===== Related Section ===== */
.related-section {
    padding: 40px 0 60px;
    background: var(--bg);
}
.section-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 28px;
}
.section-head h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--title);
    position: relative;
    padding-left: 16px;
}
.section-head h2::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 5px;
    height: 22px;
    background: var(--gold);
    border-radius: 4px;
}
.view-all {
    font-size: 14px;
    font-weight: 500;
    color: var(--brand);
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: color .25s, gap .25s;
}
.view-all:hover {
    color: var(--gold);
    gap: 8px;
}
.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.related-card {
    background: var(--card);
    border-radius: var(--radius-card);
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-card);
    display: flex;
    flex-direction: column;
    transition: box-shadow .3s, transform .3s, border-color .3s;
}
.related-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-4px);
    border-color: rgba(11, 59, 46, .2);
}
.related-thumb {
    aspect-ratio: 16 / 9;
    overflow: hidden;
}
.related-thumb img {
    width: 100%;
    height: 100%;
    transition: transform .4s;
}
.related-card:hover .related-thumb img {
    transform: scale(1.04);
}
.related-body {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    flex: 1;
}
.badge {
    background: rgba(185, 147, 76, .14);
    color: #8a6a2f;
    font-size: 12px;
    font-weight: 600;
    padding: 3px 12px;
    border-radius: 999px;
    align-self: flex-start;
}
.related-body h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--title);
    line-height: 1.4;
    transition: color .25s;
}
.related-card:hover .related-body h3 {
    color: var(--brand);
}
.related-body p {
    font-size: 14px;
    color: var(--weak);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
}
.related-body .date {
    font-size: 14px;
    color: #a0aaa3;
}

/* ===== CTA Section ===== */
.cta-section {
    padding: 24px 0 64px;
    background: var(--bg);
}
.cta-box {
    background: var(--brand);
    border-radius: var(--radius-card);
    padding: 48px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    flex-wrap: wrap;
    box-shadow: 0 8px 30px rgba(11, 59, 46, .2);
    position: relative;
    overflow: hidden;
}
.cta-box::before {
    content: "";
    position: absolute;
    right: -40px;
    top: -40px;
    width: 180px;
    height: 180px;
    background: repeating-linear-gradient(45deg, rgba(255,255,255,.04) 0 8px, transparent 8px 16px);
    border-radius: 50%;
}
.cta-box h2 {
    font-size: 22px;
    font-weight: 700;
    color: #fff;
    line-height: 1.4;
    max-width: 480px;
}
.cta-box p {
    color: rgba(255, 255, 255, .7);
    font-size: 14px;
    margin-top: 6px;
}
.cta-box .btn-gold {
    flex-shrink: 0;
    font-size: 16px;
    padding: 12px 32px;
}

/* ===== Footer ===== */
.site-footer {
    background: var(--dark);
    color: rgba(255, 255, 255, .72);
    padding: 64px 0 0;
    font-size: 14px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.2fr;
    gap: 40px;
    padding-bottom: 48px;
}
.footer-brand .logo {
    margin-bottom: 16px;
}
.footer-brand p {
    color: rgba(255, 255, 255, .55);
    line-height: 1.7;
    max-width: 320px;
}
.footer-col h4 {
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 18px;
}
.footer-col ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.footer-col ul li a {
    color: rgba(255, 255, 255, .55);
    transition: color .25s, padding-left .25s;
}
.footer-col ul li a:hover {
    color: var(--gold);
    padding-left: 4px;
}
.footer-contact li {
    display: flex;
    align-items: center;
    gap: 10px;
    color: rgba(255, 255, 255, .55);
}
.footer-contact i {
    color: var(--gold);
    width: 16px;
    text-align: center;
    font-size: 14px;
}
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, .08);
    padding: 22px 0;
    text-align: center;
    font-size: 13px;
    color: rgba(255, 255, 255, .35);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .header-top {
        gap: 12px;
    }
    .search-box {
        max-width: 320px;
    }
    .related-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
}
@media (max-width: 767px) {
    .container {
        padding-left: 20px;
        padding-right: 20px;
    }
    .header-top {
        padding-top: 14px;
        padding-bottom: 14px;
    }
    .search-box {
        display: none;
    }
    .header-actions .btn-login {
        display: none;
    }
    .menu-toggle {
        display: flex;
    }
    .header-nav {
        display: none;
        border-top: 1px solid rgba(255, 255, 255, .06);
        padding: 8px 0 16px;
    }
    .header-nav.open {
        display: block;
    }
    .nav-inner {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        overflow: visible;
        padding-top: 8px;
    }
    .mobile-search {
        display: flex;
        height: 44px;
        background: rgba(255, 255, 255, .08);
        border: 1px solid rgba(255, 255, 255, .14);
        border-radius: var(--radius-btn);
        align-items: center;
        padding: 0 14px;
        gap: 8px;
        margin-bottom: 12px;
    }
    .mobile-search input {
        flex: 1;
        background: transparent;
        color: #fff;
        font-size: 14px;
    }
    .mobile-search input::placeholder {
        color: rgba(255, 255, 255, .45);
    }
    .nav-link {
        display: block;
        padding: 14px 10px;
        font-size: 16px;
        border-bottom: 1px solid rgba(255, 255, 255, .06);
        border-radius: 8px;
        margin: 0;
    }
    .nav-link.active {
        border-bottom: 2px solid var(--gold);
    }
    .article-section {
        padding: 32px 0 24px;
    }
    .article-card {
        padding: 28px 22px;
        border-radius: var(--radius-btn);
    }
    .article-title {
        font-size: 26px;
        line-height: 1.35;
    }
    .article-meta {
        gap: 10px;
        padding-bottom: 18px;
        margin-bottom: 20px;
    }
    .article-content {
        font-size: 16px;
        line-height: 1.85;
    }
    .article-content h2 {
        font-size: 21px;
    }
    .article-content h3 {
        font-size: 18px;
    }
    .article-pagination {
        flex-direction: column;
    }
    .page-link {
        justify-content: center;
        width: 100%;
    }
    .related-section {
        padding: 24px 0 40px;
    }
    .section-head h2 {
        font-size: 24px;
    }
    .related-grid {
        grid-template-columns: 1fr;
        gap: 18px;
    }
    .cta-section {
        padding: 16px 0 40px;
    }
    .cta-box {
        padding: 32px 24px;
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }
    .cta-box h2 {
        font-size: 19px;
    }
    .cta-box .btn-gold {
        width: 100%;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
        padding-bottom: 32px;
    }
    .footer-brand p {
        max-width: 100%;
    }
    .breadcrumb [aria-current="page"] {
        max-width: 160px;
    }
}
@media (max-width: 480px) {
    .logo-icon {
        font-size: 14px;
        padding: 8px 12px;
    }
    .logo-tag {
        font-size: 13px;
    }
    .article-card {
        padding: 22px 16px;
    }
    .article-title {
        font-size: 22px;
    }
    .related-body h3 {
        font-size: 16px;
    }
}

/* roulang page: category2 */
:root {
            --brand: #0B3B2E;
            --gold: #B9934C;
            --dark: #081710;
            --bg: #F4F6F5;
            --card: #FFFFFF;
            --title: #16211C;
            --text: #3D4A43;
            --muted: #7A8A80;
            --border: #E4E9E6;
            --success: #1F9D63;
            --warning: #C9742E;
            --error: #C93A2E;
            --radius-card: 16px;
            --radius-btn: 12px;
            --shadow-card: 0 2px 12px rgba(8, 23, 16, 0.06);
            --shadow-hover: 0 8px 28px rgba(8, 23, 16, 0.12);
            --font-sans: "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-sans);
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        ul,
        ol {
            list-style: none;
        }
        input,
        button {
            font-family: inherit;
            outline: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ===== Header ===== */
        .site-header {
            background: var(--dark);
            position: sticky;
            top: 0;
            z-index: 100;
            transition: box-shadow 0.3s ease;
        }
        .site-header.scrolled {
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
            background: rgba(8, 23, 16, 0.95);
            backdrop-filter: blur(8px);
        }
        .header-main {
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .header-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            height: 72px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            display: inline-block;
            background: var(--brand);
            color: #fff;
            font-size: 18px;
            font-weight: 900;
            padding: 8px 14px;
            border-radius: 10px;
            letter-spacing: 0.5px;
            line-height: 1;
        }
        .logo-tag {
            font-size: 13px;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.85);
            letter-spacing: 1px;
            background: rgba(255, 255, 255, 0.08);
            padding: 4px 8px;
            border-radius: 999px;
            border: 1px solid rgba(255, 255, 255, 0.12);
        }
        .search-box {
            flex: 1;
            max-width: 560px;
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-btn);
            height: 48px;
            padding: 0 16px;
            gap: 10px;
            transition: border-color 0.3s, box-shadow 0.3s;
        }
        .search-box svg {
            width: 18px;
            height: 18px;
            stroke: rgba(255, 255, 255, 0.6);
            flex-shrink: 0;
        }
        .search-box input {
            flex: 1;
            background: transparent;
            border: none;
            color: #fff;
            font-size: 14px;
        }
        .search-box input::placeholder {
            color: rgba(255, 255, 255, 0.45);
        }
        .search-box:focus-within {
            border-color: var(--gold);
            box-shadow: 0 0 0 4px rgba(11, 59, 46, 0.15), 0 0 0 1px rgba(185, 147, 76, 0.4);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .btn-login {
            color: rgba(255, 255, 255, 0.8);
            font-size: 14px;
            font-weight: 500;
            padding: 8px 16px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            transition: all 0.3s;
        }
        .btn-login:hover {
            border-color: var(--gold);
            color: var(--gold);
            background: rgba(255, 255, 255, 0.04);
        }
        .btn-register {
            background: var(--gold);
            color: #16211C;
            font-size: 14px;
            font-weight: 700;
            padding: 8px 20px;
            border-radius: 8px;
            transition: all 0.3s;
        }
        .btn-register:hover {
            background: #cba55e;
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(185, 147, 76, 0.35);
        }
        .burger-btn {
            display: none;
            background: none;
            border: none;
            width: 36px;
            height: 36px;
            border-radius: 8px;
            cursor: pointer;
            position: relative;
            flex-shrink: 0;
        }
        .burger-btn span,
        .burger-btn span::before,
        .burger-btn span::after {
            content: "";
            display: block;
            width: 20px;
            height: 2px;
            background: #fff;
            border-radius: 2px;
            position: absolute;
            left: 8px;
            transition: transform 0.3s, opacity 0.3s;
        }
        .burger-btn span {
            top: 17px;
        }
        .burger-btn span::before {
            top: -6px;
        }
        .burger-btn span::after {
            top: 6px;
        }
        .burger-btn.active span {
            transform: rotate(45deg);
        }
        .burger-btn.active span::before {
            opacity: 0;
        }
        .burger-btn.active span::after {
            transform: rotate(90deg);
            top: 0;
        }
        .header-nav {
            background: transparent;
        }
        .nav-inner {
            display: flex;
            align-items: center;
            gap: 32px;
            height: 52px;
            overflow-x: auto;
            scrollbar-width: none;
        }
        .nav-inner::-webkit-scrollbar {
            display: none;
        }
        .nav-link {
            position: relative;
            color: rgba(255, 255, 255, 0.75);
            font-size: 15px;
            font-weight: 500;
            padding: 14px 2px 12px;
            white-space: nowrap;
            transition: color 0.3s;
        }
        .nav-link::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 100%;
            height: 2px;
            background: var(--gold);
            transform: scaleX(0);
            transition: transform 0.3s;
            border-radius: 2px;
        }
        .nav-link:hover {
            color: #fff;
        }
        .nav-link:hover::after {
            transform: scaleX(1);
        }
        .nav-link.active {
            color: #fff;
            font-weight: 600;
        }
        .nav-link.active::after {
            transform: scaleX(1);
        }
        .mobile-drawer {
            display: none;
            background: var(--dark);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 16px 24px 24px;
        }
        .mobile-drawer.open {
            display: block;
        }
        .mobile-drawer .drawer-search {
            display: flex;
            align-items: center;
            gap: 10px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 12px;
            height: 44px;
            padding: 0 14px;
            margin-bottom: 16px;
        }
        .mobile-drawer .drawer-search svg {
            width: 16px;
            height: 16px;
            stroke: rgba(255, 255, 255, 0.6);
        }
        .mobile-drawer .drawer-search input {
            flex: 1;
            background: transparent;
            border: none;
            color: #fff;
            font-size: 14px;
        }
        .mobile-drawer .drawer-search input::placeholder {
            color: rgba(255, 255, 255, 0.4);
        }
        .mobile-drawer a.drawer-link {
            display: block;
            color: rgba(255, 255, 255, 0.8);
            font-size: 15px;
            font-weight: 500;
            padding: 12px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            transition: color 0.2s;
        }
        .mobile-drawer a.drawer-link:hover {
            color: var(--gold);
        }
        .mobile-drawer a.drawer-link.active {
            color: var(--gold);
        }

        /* ===== Page Hero ===== */
        .page-hero {
            position: relative;
            background-size: cover;
            background-position: center;
            padding: 88px 0 72px;
            color: #fff;
            isolation: isolate;
        }
        .page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(8, 23, 16, 0.92) 0%, rgba(8, 23, 16, 0.70) 55%, rgba(8, 23, 16, 0.45) 100%);
            z-index: -1;
        }
        .hero-inner {
            max-width: 820px;
        }
        .hero-kicker {
            display: inline-block;
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 3px;
            color: var(--gold);
            background: rgba(185, 147, 76, 0.12);
            border: 1px solid rgba(185, 147, 76, 0.35);
            padding: 5px 14px;
            border-radius: 999px;
            margin-bottom: 20px;
        }
        .page-hero h1 {
            font-size: 44px;
            font-weight: 900;
            line-height: 1.2;
            letter-spacing: 1px;
            color: #fff;
            margin-bottom: 12px;
        }
        .hero-sub {
            font-size: 22px;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.92);
            margin-bottom: 18px;
        }
        .hero-desc {
            font-size: 15px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.75);
            max-width: 640px;
            margin-bottom: 32px;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 40px;
        }
        .btn-gold-lg {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--gold);
            color: #16211C;
            font-size: 15px;
            font-weight: 700;
            padding: 13px 32px;
            border-radius: var(--radius-btn);
            transition: all 0.3s;
            border: 1px solid transparent;
        }
        .btn-gold-lg:hover {
            background: #cba55e;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(185, 147, 76, 0.35);
        }
        .btn-gold-lg:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(185, 147, 76, 0.3);
        }
        .btn-ghost-lg {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: transparent;
            color: #fff;
            font-size: 15px;
            font-weight: 500;
            padding: 13px 32px;
            border-radius: var(--radius-btn);
            border: 1px solid rgba(255, 255, 255, 0.5);
            transition: all 0.3s;
        }
        .btn-ghost-lg:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }
        .btn-ghost-lg:active {
            transform: scale(0.98);
        }
        .hero-badges {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
        }
        .hero-badges span {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .hero-badges span:not(:last-child)::after {
            content: "";
            width: 1px;
            height: 14px;
            background: rgba(255, 255, 255, 0.25);
            margin-left: 20px;
        }
        .hero-badges i {
            color: var(--gold);
            font-size: 13px;
        }

        /* ===== Section ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: #fff;
        }
        .section-head {
            max-width: 640px;
            margin-bottom: 48px;
        }
        .section-head.center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }
        .section-head h2 {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--title);
            margin-bottom: 12px;
        }
        .section-head p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
        }
        .section-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 700;
            letter-spacing: 2px;
            color: var(--gold);
            background: rgba(185, 147, 76, 0.1);
            border: 1px solid rgba(185, 147, 76, 0.25);
            padding: 4px 14px;
            border-radius: 999px;
            margin-bottom: 16px;
        }

        /* ===== Feature Grid ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .feature-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px;
            transition: all 0.3s;
            position: relative;
            overflow: hidden;
        }
        .feature-card::before {
            content: "";
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 3px;
            background: var(--gold);
            transform: scaleY(0);
            transition: transform 0.3s;
            border-radius: 0 3px 3px 0;
        }
        .feature-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: rgba(11, 59, 46, 0.2);
        }
        .feature-card:hover::before {
            transform: scaleY(1);
        }
        .feature-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: rgba(11, 59, 46, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
            transition: background 0.3s;
        }
        .feature-card:hover .feature-icon {
            background: rgba(11, 59, 46, 0.15);
        }
        .feature-icon i {
            font-size: 17px;
            color: var(--brand);
        }
        .feature-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--title);
            margin-bottom: 10px;
        }
        .feature-card p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
        }
        .feature-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--brand);
            margin-top: 16px;
            transition: gap 0.3s;
        }
        .feature-link:hover {
            gap: 10px;
            color: var(--gold);
        }

        /* ===== Scenarios ===== */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .scenario-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all 0.3s;
            position: relative;
        }
        .scenario-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .scenario-img {
            height: 180px;
            overflow: hidden;
            position: relative;
        }
        .scenario-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s;
        }
        .scenario-card:hover .scenario-img img {
            transform: scale(1.04);
        }
        .scenario-body {
            padding: 24px 24px 28px;
        }
        .scenario-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--title);
            margin-bottom: 10px;
        }
        .scenario-body p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .scenario-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .scenario-tags .tag {
            font-size: 12px;
            color: var(--muted);
            background: var(--bg);
            border: 1px solid var(--border);
            padding: 4px 12px;
            border-radius: 999px;
        }

        /* ===== Workflow ===== */
        .workflow-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
            margin-top: 48px;
        }
        .step-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 32px 24px;
            text-align: center;
            position: relative;
            transition: all 0.3s;
        }
        .step-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .step-num {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: var(--brand);
            color: #fff;
            font-size: 22px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-variant-numeric: tabular-nums;
            box-shadow: 0 4px 12px rgba(11, 59, 46, 0.25);
        }
        .step-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--title);
            margin-bottom: 10px;
        }
        .step-card p {
            font-size: 13px;
            color: var(--muted);
            line-height: 1.7;
        }

        /* ===== Stats ===== */
        .stats-wrap {
            background: var(--brand);
            border-radius: 20px;
            padding: 48px 40px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            margin-top: 48px;
        }
        .stat-item {
            text-align: center;
            color: #fff;
        }
        .stat-item .num {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.2;
            font-variant-numeric: tabular-nums;
            color: #fff;
            margin-bottom: 6px;
        }
        .stat-item .num span {
            color: var(--gold);
        }
        .stat-item .label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
        }

        /* ===== FAQ ===== */
        .faq-layout {
            display: grid;
            grid-template-columns: 1fr 1.6fr;
            gap: 56px;
            align-items: start;
        }
        .faq-guide h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--title);
            margin-bottom: 16px;
            line-height: 1.3;
        }
        .faq-guide p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.8;
            margin-bottom: 24px;
        }
        .faq-contact-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--brand);
            border-bottom: 2px solid rgba(11, 59, 46, 0.3);
            padding-bottom: 4px;
            transition: border-color 0.3s, color 0.3s;
        }
        .faq-contact-link:hover {
            color: var(--gold);
            border-bottom-color: var(--gold);
        }
        .faq-list {
            border-top: 1px solid var(--border);
        }
        .faq-item {
            border-bottom: 1px solid var(--border);
        }
        .faq-item .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            background: none;
            border: none;
            padding: 20px 4px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--title);
            text-align: left;
            transition: color 0.3s;
        }
        .faq-item .faq-question:hover {
            color: var(--brand);
        }
        .faq-item .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: var(--muted);
            flex-shrink: 0;
            transition: all 0.3s;
            font-style: normal;
            line-height: 1;
        }
        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
            padding: 0 4px;
        }
        .faq-item .faq-answer p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.8;
            padding-bottom: 20px;
        }
        .faq-item.open .faq-question {
            color: var(--brand);
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            border-color: var(--gold);
            color: var(--gold);
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
        }

        /* ===== CTA ===== */
        .cta-banner {
            background: var(--brand);
            border-radius: 20px;
            padding: 52px 48px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }
        .cta-banner h2 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 6px;
            letter-spacing: 0.5px;
        }
        .cta-banner p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
        }
        .cta-banner .btn-cta {
            background: var(--gold);
            color: #16211C;
            font-size: 15px;
            font-weight: 700;
            padding: 14px 36px;
            border-radius: var(--radius-btn);
            transition: all 0.3s;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }
        .cta-banner .btn-cta:hover {
            background: #cba55e;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(185, 147, 76, 0.35);
        }
        .cta-banner .btn-cta:active {
            transform: translateY(0);
        }
        .back-home {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 500;
            color: var(--muted);
            margin-top: 28px;
            transition: color 0.3s, gap 0.3s;
        }
        .back-home:hover {
            color: var(--brand);
            gap: 12px;
        }
        .back-home i {
            font-size: 13px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, 0.7);
            margin-top: 80px;
            padding: 64px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
            gap: 48px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand .logo {
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 300px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            transition: color 0.3s;
        }
        .footer-col ul li a:hover {
            color: var(--gold);
        }
        .footer-contact {
            font-size: 14px;
        }
        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-contact i {
            color: var(--gold);
            width: 16px;
            text-align: center;
            font-size: 13px;
        }
        .footer-bottom {
            padding: 24px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        /* ===== Focus Visible ===== */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 1px solid var(--gold);
            outline-offset: 2px;
            box-shadow: 0 0 0 4px rgba(185, 147, 76, 0.18);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .section {
                padding: 64px 0;
            }
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .scenario-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .workflow-steps {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-wrap {
                grid-template-columns: repeat(2, 1fr);
            }
            .faq-layout {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .search-box {
                max-width: 320px;
            }
        }
        @media (max-width: 767px) {
            .section {
                padding: 48px 0;
            }
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }
            .search-box {
                display: none;
            }
            .header-actions .btn-login,
            .header-actions .btn-register {
                display: none;
            }
            .burger-btn {
                display: block;
            }
            .header-nav {
                display: none;
            }
            .header-top {
                height: 64px;
            }
            .page-hero {
                padding: 64px 0 56px;
            }
            .page-hero h1 {
                font-size: 30px;
            }
            .hero-sub {
                font-size: 18px;
            }
            .hero-desc {
                font-size: 14px;
            }
            .hero-badges {
                gap: 12px;
            }
            .hero-badges span {
                font-size: 13px;
            }
            .hero-badges span:not(:last-child)::after {
                margin-left: 12px;
            }
            .section-head h2 {
                font-size: 24px;
            }
            .feature-grid,
            .scenario-grid,
            .workflow-steps,
            .stats-wrap {
                grid-template-columns: 1fr;
            }
            .stats-wrap {
                padding: 32px 24px;
            }
            .cta-banner {
                padding: 32px 24px;
                flex-direction: column;
                align-items: flex-start;
                gap: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                font-size: 12px;
            }
        }
        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 28px;
            }
            .hero-actions {
                flex-direction: column;
            }
            .btn-gold-lg,
            .btn-ghost-lg {
                width: 100%;
            }
        }

/* roulang page: category3 */
:root {
  --brand: #0B3B2E;
  --brand-soft: rgba(11,59,46,0.1);
  --gold: #B9934C;
  --gold-soft: rgba(185,147,76,0.15);
  --dark: #081710;
  --dark-soft: rgba(8,23,16,0.92);
  --page-bg: #F4F6F5;
  --card-bg: #FFFFFF;
  --title: #16211C;
  --text: #3D4A43;
  --muted: #7A8A80;
  --border: #E4E9E6;
  --divider: #D8DED9;
  --radius-card: 16px;
  --radius-btn: 12px;
  --radius-tag: 999px;
  --shadow-card: 0 2px 12px rgba(8,23,16,0.06);
  --shadow-hover: 0 8px 28px rgba(8,23,16,0.12);
  --section-space: 80px;
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--page-bg);
  color: var(--text);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
button { font-family: inherit; border: none; background: none; cursor: pointer; }
input { font-family: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--dark);
  transition: background .3s ease, box-shadow .3s ease;
}
.site-header.scrolled {
  background: var(--dark-soft);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 6px 20px rgba(8,23,16,0.25);
}
.header-top-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 14px 0;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: var(--brand);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  border-radius: 12px;
  letter-spacing: .02em;
}
.logo-tag {
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  letter-spacing: .05em;
}
.search-box {
  flex: 1;
  max-width: 560px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 10px;
  height: 48px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: var(--radius-btn);
  padding: 0 16px;
  transition: border-color .3s ease, box-shadow .3s ease, background .3s ease;
}
.search-box i { color: rgba(255,255,255,0.55); font-size: 15px; }
.search-box input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: #fff;
  font-size: 14px;
}
.search-box input::placeholder { color: rgba(255,255,255,0.55); }
.search-box:focus-within {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(11,59,46,0.30), 0 0 0 1px var(--gold);
  background: rgba(255,255,255,0.16);
}
.header-actions {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 12px;
}
.btn-login {
  color: rgba(255,255,255,0.85);
  font-size: 14px;
  font-weight: 500;
  padding: 8px 6px;
  transition: color .2s;
}
.btn-login:hover { color: #fff; }
.btn-register {
  display: inline-flex;
  align-items: center;
  height: 38px;
  padding: 0 18px;
  background: var(--gold);
  color: var(--title);
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-btn);
  transition: background .2s, transform .2s, box-shadow .2s;
}
.btn-register:hover {
  background: #a8843f;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(185,147,76,0.35);
}
.btn-register:active { transform: translateY(0); }
.menu-toggle {
  display: none;
  font-size: 20px;
  color: #fff;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-btn);
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255,255,255,0.2);
  transition: border-color .2s, background .2s;
}
.menu-toggle:hover { background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.4); }
.header-nav {
  border-top: 1px solid rgba(255,255,255,0.08);
}
.nav-inner {
  display: flex;
  align-items: center;
  gap: 4px;
  min-height: 52px;
}
.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  height: 52px;
  padding: 0 18px;
  font-size: 15px;
  font-weight: 500;
  color: rgba(255,255,255,0.72);
  transition: color .25s;
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 0;
  height: 2px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s ease;
}
.nav-link:hover { color: #fff; }
.nav-link:hover::after { transform: scaleX(1); }
.nav-link.active { color: #fff; font-weight: 600; }
.nav-link.active::after { transform: scaleX(1); }

/* ===== Hero ===== */
.page-hero {
  background:
    linear-gradient(180deg, rgba(8,23,16,0.82), rgba(8,23,16,0.55)),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color: #fff;
  padding: 84px 0 72px;
}
.hero-badge {
  display: inline-block;
  padding: 6px 18px;
  border-radius: var(--radius-tag);
  font-size: 13px;
  font-weight: 600;
  color: #fff;
  background: rgba(185,147,76,0.22);
  border: 1px solid rgba(185,147,76,0.45);
  margin-bottom: 18px;
  letter-spacing: .06em;
}
.page-hero h1 {
  font-size: 44px;
  font-weight: 900;
  line-height: 1.2;
  color: #fff;
  margin-bottom: 14px;
  letter-spacing: .02em;
}
.page-hero .hero-sub {
  font-size: 17px;
  color: rgba(255,255,255,0.75);
  max-width: 600px;
  margin-bottom: 30px;
  line-height: 1.7;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 28px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  transition: all .25s ease;
}
.btn:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}
.btn-gold { background: var(--gold); color: var(--title); }
.btn-gold:hover {
  background: #a8843f;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(185,147,76,0.35);
}
.btn-gold:active { transform: translateY(0); box-shadow: none; }
.btn-outline {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255,255,255,0.55);
}
.btn-outline:hover {
  background: rgba(255,255,255,0.10);
  border-color: #fff;
}
.btn-outline:active { background: rgba(255,255,255,0.04); }

/* ===== Section head ===== */
.section-tag {
  display: inline-block;
  padding: 4px 16px;
  border-radius: var(--radius-tag);
  font-size: 13px;
  font-weight: 600;
  background: var(--brand-soft);
  color: var(--brand);
  letter-spacing: .03em;
}
.section-head { margin-bottom: 44px; }
.section-head h2 {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--title);
  margin: 14px 0 10px;
}
.section-head p { font-size: 14px; color: var(--muted); max-width: 680px; }
.section-head.center { text-align: center; }
.section-head.center p { margin-left: auto; margin-right: auto; }

/* ===== Split layout ===== */
.split-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}
.split-text h2 {
  font-size: 30px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--title);
  margin: 14px 0 18px;
}
.split-text p {
  color: var(--text);
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 16px;
}
.split-text .btn { margin-top: 10px; }
.btn-dark {
  background: var(--dark);
  color: #fff;
}
.btn-dark:hover {
  background: #122b20;
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}
.btn-dark:active { transform: translateY(0); }

.img-frame {
  position: relative;
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.img-frame::after {
  content: '';
  position: absolute;
  right: -14px;
  bottom: -14px;
  width: 78%;
  height: 78%;
  border: 2px solid var(--gold);
  border-radius: 16px;
  z-index: 0;
  pointer-events: none;
}
.img-frame img {
  width: 100%;
  height: 380px;
  object-fit: cover;
  position: relative;
  z-index: 1;
  border-radius: 16px;
}

/* ===== Card grid ===== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.img-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
  display: flex;
  flex-direction: column;
}
.img-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(11,59,46,0.25);
}
.img-card-media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
}
.img-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.img-card:hover .img-card-media img { transform: scale(1.04); }
.img-card-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  display: inline-block;
  padding: 4px 14px;
  border-radius: var(--radius-tag);
  font-size: 12px;
  font-weight: 600;
  background: rgba(8,23,16,0.72);
  color: #fff;
  backdrop-filter: blur(4px);
  letter-spacing: .04em;
}
.img-card-body { padding: 24px 28px 28px; display: flex; flex-direction: column; flex: 1; }
.img-card-body h3 { font-size: 20px; font-weight: 700; color: var(--title); margin-bottom: 10px; }
.img-card-body p { font-size: 14px; line-height: 1.75; color: var(--muted); margin-bottom: 18px; flex: 1; }
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--brand);
  transition: gap .25s ease, color .25s ease;
}
.card-link:hover { gap: 12px; color: var(--gold); }
.card-link:active { opacity: .8; }
.card-link i { font-size: 12px; }

/* ===== Scene cards ===== */
.scene-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.scene-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-left: 4px solid transparent;
  border-radius: var(--radius-card);
  padding: 28px;
  position: relative;
  transition: border-color .3s ease, box-shadow .3s ease, transform .3s ease;
}
.scene-card::before {
  content: '';
  position: absolute;
  left: -1px;
  top: 28px;
  width: 4px;
  height: 0;
  background: var(--gold);
  transition: height .35s ease;
}
.scene-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
  border-color: rgba(11,59,46,0.18);
}
.scene-card:hover::before { height: 56px; }
.scene-card .scene-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--brand-soft);
  color: var(--brand);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  margin-bottom: 16px;
}
.scene-card h3 { font-size: 18px; font-weight: 700; color: var(--title); margin-bottom: 8px; }
.scene-card p { font-size: 14px; color: var(--muted); line-height: 1.7; margin-bottom: 16px; }
.scene-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.scene-tags span {
  display: inline-block;
  padding: 3px 12px;
  font-size: 12px;
  color: var(--muted);
  background: #F0F4F1;
  border-radius: var(--radius-tag);
}

/* ===== Flow ===== */
.flow-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.flow-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 28px;
  position: relative;
  transition: box-shadow .3s ease, transform .3s ease;
}
.flow-item:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}
.flow-num {
  font-size: 32px;
  font-weight: 800;
  color: var(--brand);
  display: block;
  margin-bottom: 10px;
  font-variant-numeric: tabular-nums;
}
.flow-item h3 { font-size: 18px; font-weight: 700; color: var(--title); margin-bottom: 8px; }
.flow-item p { font-size: 14px; color: var(--muted); line-height: 1.7; }

/* ===== Stats banner ===== */
.stats-banner {
  background: var(--brand);
  border-radius: var(--radius-card);
  padding: 42px 48px;
  display: flex;
  align-items: center;
  gap: 44px;
  flex-wrap: wrap;
}
.stats-banner-title {
  color: #fff;
  font-size: 22px;
  font-weight: 700;
  flex-shrink: 0;
  line-height: 1.4;
  max-width: 180px;
}
.stats-row {
  display: flex;
  flex: 1;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.stats-cell { text-align: center; color: #fff; min-width: 120px; }
.stats-cell strong {
  display: block;
  font-size: 34px;
  font-weight: 800;
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
}
.stats-cell span { font-size: 14px; opacity: .72; }

/* ===== FAQ ===== */
.faq-wrap {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 56px;
}
.faq-side h2 { font-size: 30px; font-weight: 700; color: var(--title); margin-top: 14px; line-height: 1.3; }
.faq-side p { font-size: 14px; color: var(--muted); margin-top: 12px; }
.faq-side .faq-contact {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 18px;
  font-size: 14px;
  font-weight: 600;
  color: var(--gold);
  transition: color .2s, gap .2s;
}
.faq-side .faq-contact:hover { color: var(--brand); gap: 12px; }
.faq-item { border-bottom: 1px solid var(--divider); }
.faq-item:first-child { border-top: 1px solid var(--divider); }
.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 4px;
  font-size: 16px;
  font-weight: 600;
  color: var(--title);
  gap: 16px;
  text-align: left;
  cursor: pointer;
  transition: color .25s;
}
.faq-question:hover { color: var(--brand); }
.faq-icon {
  flex-shrink: 0;
  font-size: 18px;
  color: var(--gold);
  transition: transform .3s ease;
}
.faq-item.active .faq-icon { transform: rotate(45deg); }
.faq-item.active .faq-question { color: var(--brand); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .3s ease; }
.faq-answer p { padding: 0 4px 20px; font-size: 14px; line-height: 1.75; color: var(--muted); }

/* ===== CTA ===== */
.cta-banner {
  background: var(--brand);
  border-radius: var(--radius-card);
  padding: 46px 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.cta-text h2 { font-size: 22px; font-weight: 700; color: #fff; line-height: 1.4; }
.cta-text p { font-size: 14px; color: rgba(255,255,255,0.72); margin-top: 6px; }
.cta-banner .btn { flex-shrink: 0; }

/* ===== Back home ===== */
.back-home {
  padding: 0 0 80px;
}
.back-home a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--muted);
  transition: color .25s, gap .25s;
}
.back-home a:hover { color: var(--brand); gap: 12px; }
.back-home a i { font-size: 12px; }

/* ===== Footer ===== */
.site-footer {
  background: var(--dark);
  color: rgba(255,255,255,0.72);
  padding: 56px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 40px;
}
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand p { font-size: 14px; line-height: 1.8; color: rgba(255,255,255,0.58); max-width: 320px; }
.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 18px;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  transition: color .25s;
}
.footer-col ul a:hover { color: var(--gold); }
.footer-contact li {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  display: flex;
  align-items: center;
  gap: 10px;
}
.footer-contact i { color: var(--gold); width: 16px; text-align: center; font-size: 13px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,0.45);
}

/* ===== Responsive ===== */
@media (max-width: 1279px) {
  .search-box { max-width: 360px; }
  .card-grid, .scene-grid { gap: 20px; }
  .flow-grid { gap: 20px; }
}

@media (max-width: 1023px) {
  .section { padding: 56px 0; }
  .split-layout { grid-template-columns: 1fr; gap: 40px; }
  .card-grid, .scene-grid { grid-template-columns: repeat(2, 1fr); }
  .flow-grid { grid-template-columns: repeat(2, 1fr); }
  .faq-wrap { grid-template-columns: 1fr; gap: 36px; }
  .stats-banner { flex-direction: column; align-items: flex-start; gap: 28px; }
  .stats-row { width: 100%; justify-content: space-between; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
}

@media (max-width: 767px) {
  .section { padding: 48px 0; }
  .container { padding: 0 20px; }
  .header-actions { display: none; }
  .logo-tag { display: none; }
  .logo-icon { width: 38px; height: 38px; font-size: 12px; }
  .search-box { max-width: none; margin: 0 6px; height: 42px; padding: 0 12px; }
  .search-box input { font-size: 13px; }
  .menu-toggle { display: inline-flex; }
  .header-nav { display: none; border-top: 1px solid rgba(255,255,255,0.08); }
  .header-nav.open { display: block; }
  .nav-inner { flex-direction: column; align-items: stretch; padding: 10px 20px 18px; }
  .nav-link { height: 48px; justify-content: flex-start; padding: 0 6px; }
  .nav-link::after { left: 6px; right: auto; width: 0; height: 2px; transition: width .3s ease; }
  .nav-link:hover::after, .nav-link.active::after { width: 28px; transform: none; }
  .page-hero { padding: 52px 0 48px; }
  .page-hero h1 { font-size: 30px; }
  .page-hero .hero-sub { font-size: 15px; }
  .hero-actions .btn { width: 100%; }
  .section-head h2 { font-size: 24px; }
  .section-head p { font-size: 13px; }
  .card-grid, .scene-grid, .flow-grid { grid-template-columns: 1fr; }
  .img-frame img { height: 260px; }
  .img-card-body { padding: 20px 22px 24px; }
  .stats-banner { padding: 28px 24px; }
  .stats-cell { min-width: 100px; }
  .stats-cell strong { font-size: 28px; }
  .cta-banner { padding: 32px 24px; flex-direction: column; align-items: flex-start; }
  .cta-banner .btn { width: 100%; }
  .faq-question { font-size: 15px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { padding: 18px 0; }
}

@media (max-width: 520px) {
  .stats-row { justify-content: center; }
  .flow-grid { gap: 16px; }
  .scene-card { padding: 22px; }
}