/* roulang page: index */
:root {
  --primary: #0E7C72;
  --primary-dark: #0A645D;
  --primary-gradient: linear-gradient(135deg, #0E7C72 0%, #14B09B 100%);
  --accent: #FF6A3D;
  --accent-light: #FF8258;
  --teal-light: #E6F4F1;
  --teal-mist: #F0F8F7;
  --bg-warm: #F8F6F2;
  --white: #FFFFFF;
  --text-main: #1B2B2A;
  --text-secondary: #5B6B68;
  --text-muted: #A8B5B1;
  --border-light: #E5ECE9;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 4px 14px rgba(27, 43, 42, 0.06);
  --shadow-md: 0 8px 30px rgba(27, 43, 42, 0.08);
  --shadow-lg: 0 14px 36px rgba(27, 43, 42, 0.12);
  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --container: 1200px;
  --sp-section: 80px;
  --sp-section-mobile: 56px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-warm);
  color: var(--text-main);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.25s ease;
}

a:hover {
  color: var(--primary-dark);
  text-decoration: underline;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

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

ul, ol {
  list-style: none;
}

h1, h2, h3, h4 {
  line-height: 1.3;
  font-weight: 700;
  color: var(--text-main);
}

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

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

.section-header {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 48px;
}

.section-header h2 {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.section-header .section-sub {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 480px;
}

.section-header .section-line {
  width: 44px;
  height: 4px;
  border-radius: 4px;
  background: var(--primary-gradient);
  margin-top: 12px;
}

/* ====== Buttons ====== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 28px;
  border-radius: var(--radius-sm);
  font-size: 16px;
  font-weight: 600;
  line-height: 1;
  transition: all 0.28s cubic-bezier(0.22, 1, 0.36, 1);
  white-space: nowrap;
  border: 1px solid transparent;
  text-decoration: none;
}

.btn:focus-visible {
  outline: 2px solid rgba(14, 124, 114, 0.4);
  outline-offset: 3px;
}

.btn-primary {
  background: var(--primary);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--primary-dark);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(14, 124, 114, 0.25);
  text-decoration: none;
}

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

.btn-accent:hover {
  background: var(--accent-light);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(255, 106, 61, 0.3);
  text-decoration: none;
}

.btn-outline {
  background: transparent;
  border-color: var(--primary);
  color: var(--primary);
}

.btn-outline:hover {
  background: var(--teal-light);
  color: var(--primary-dark);
  border-color: var(--primary-dark);
  text-decoration: none;
}

.btn-sm {
  height: 40px;
  padding: 0 20px;
  font-size: 14px;
  border-radius: 999px;
}

.btn-lg {
  height: 54px;
  padding: 0 40px;
  font-size: 17px;
}

/* ====== Badges & tags ====== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--teal-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 500;
  padding: 4px 12px;
  border-radius: 999px;
  line-height: 1.5;
}

.badge-accent {
  background: rgba(255, 106, 61, 0.1);
  color: var(--accent);
}

.badge-dot::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
  flex-shrink: 0;
}

/* ====== Navbar ====== */
.site-header {
  position: sticky;
  top: 16px;
  z-index: 100;
  padding: 0 24px;
  margin-top: 16px;
}

.nav-shell {
  max-width: 1200px;
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 999px;
  box-shadow: 0 6px 20px rgba(27, 43, 42, 0.06);
  padding: 8px 12px 8px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  transition: box-shadow 0.3s ease;
}

.nav-shell:hover {
  box-shadow: 0 8px 28px rgba(27, 43, 42, 0.09);
}

.logo {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
  white-space: nowrap;
  letter-spacing: -0.2px;
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}

.logo:hover {
  text-decoration: none;
  color: var(--text-main);
}

.logo-icon {
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: var(--primary-gradient);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: white;
  font-size: 15px;
  font-weight: 800;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-menu a {
  font-size: 15px;
  color: var(--text-main);
  padding: 8px 16px;
  border-radius: 999px;
  transition: all 0.25s ease;
  white-space: nowrap;
  font-weight: 400;
}

.nav-menu a:hover {
  background: var(--teal-light);
  color: var(--primary);
  text-decoration: none;
}

.nav-menu a.active {
  background: var(--teal-light);
  color: var(--primary);
  font-weight: 600;
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--border-light);
  color: var(--text-main);
  font-size: 18px;
  transition: all 0.3s ease;
}

.nav-toggle:hover {
  background: var(--teal-light);
  color: var(--primary);
}

/* ====== Hero ====== */
.hero {
  position: relative;
  padding: 100px 0 80px;
  background: var(--bg-warm);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -140px;
  right: -120px;
  width: 560px;
  height: 560px;
  background: radial-gradient(circle, rgba(14, 124, 114, 0.12) 0%, rgba(20, 176, 155, 0.06) 45%, transparent 65%);
  border-radius: 50%;
  z-index: 0;
}

.hero::after {
  content: "";
  position: absolute;
  bottom: -80px;
  left: -60px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255, 106, 61, 0.07) 0%, transparent 60%);
  border-radius: 50%;
  z-index: 0;
}

.hero-bg-decor {
  position: absolute;
  top: 40px;
  right: 30px;
  width: 200px;
  height: 200px;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  border-radius: 50%;
  opacity: 0.15;
  filter: blur(2px);
  z-index: 0;
  pointer-events: none;
}

.hero-bg-decor-bottom {
  position: absolute;
  bottom: 20px;
  left: 20px;
  width: 160px;
  height: 160px;
  background-image: url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
  border-radius: 50%;
  opacity: 0.1;
  filter: blur(3px);
  z-index: 0;
  pointer-events: none;
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 64px;
  align-items: center;
}

.hero-content {
  max-width: 620px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: 999px;
  padding: 6px 16px;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
}

.hero-tag .tag-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.4); opacity: 0.7; }
}

.hero h1 {
  font-size: 42px;
  font-weight: 700;
  line-height: 1.22;
  letter-spacing: -1px;
  margin-bottom: 24px;
  color: var(--text-main);
}

.hero h1 .highlight {
  color: var(--primary);
  position: relative;
  white-space: nowrap;
}

.hero h1 .highlight::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 4px;
  height: 8px;
  background: rgba(14, 124, 114, 0.15);
  z-index: -1;
  border-radius: 4px;
}

.hero-desc {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 40px;
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.stat-card {
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: 16px;
  padding: 16px 20px;
  box-shadow: var(--shadow-sm);
  min-width: 130px;
  flex: 1;
  transition: all 0.3s ease;
}

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

.stat-card .stat-value {
  font-size: 26px;
  font-weight: 800;
  color: var(--primary);
  font-family: inherit;
  line-height: 1.2;
}

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

.stat-card .stat-indicator {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  margin-right: 6px;
  vertical-align: middle;
}

.hero-visual {
  position: relative;
  height: 460px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-main-card {
  position: relative;
  width: 100%;
  max-width: 460px;
  height: 400px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background-image: url('/assets/images/coverpic/cover-1.webp');
  background-size: cover;
  background-position: center;
}

.hero-main-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(14, 124, 114, 0.05) 0%, rgba(14, 124, 114, 0.3) 100%);
}

.hero-main-card .card-inner {
  position: absolute;
  left: 20px;
  right: 20px;
  bottom: 20px;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(8px);
  padding: 20px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.6);
  box-shadow: var(--shadow-md);
}

.hero-main-card .card-inner .title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 4px;
}

.hero-main-card .card-inner .subtitle {
  font-size: 13px;
  color: var(--text-secondary);
}

.hero-float-badge {
  position: absolute;
  right: 20px;
  top: 30px;
  background: var(--white);
  padding: 16px;
  border-radius: 16px;
  box-shadow: var(--shadow-md);
  text-align: center;
  animation: float-slow 3s ease-in-out infinite;
}

.hero-float-badge .number {
  font-size: 28px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
}

.hero-float-badge .text {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 2px;
}

.hero-float-badge.second {
  left: -10px;
  top: auto;
  bottom: 60px;
  right: auto;
  animation-delay: 1.5s;
}

@keyframes float-slow {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/* ====== Feature section ====== */
.features {
  position: relative;
  background: var(--white);
}

.features-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 60px;
}

.feature-anchor {
  position: sticky;
  top: 110px;
  align-self: start;
  padding-top: 8px;
}

.feature-anchor h3 {
  font-size: 20px;
  margin-bottom: 20px;
}

.feature-anchor ul {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.feature-anchor ul a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 10px;
  font-size: 14px;
  color: var(--text-secondary);
  transition: all 0.25s ease;
  border-left: 3px solid transparent;
  background: transparent;
}

.feature-anchor ul a:hover {
  background: var(--teal-mist);
  color: var(--primary);
  text-decoration: none;
  border-left-color: var(--primary);
}

.feature-anchor ul a.active-anchor {
  background: var(--teal-light);
  color: var(--primary);
  border-left-color: var(--primary);
  font-weight: 600;
}

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

.feature-card {
  background: var(--bg-warm);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 32px;
  transition: all 0.3s cubic-bezier(0.22, 1, 0.36, 1);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--primary-gradient);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-card:hover {
  background: var(--white);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  border-color: rgba(14, 124, 114, 0.2);
}

.feature-card.feature-main {
  grid-column: span 2;
  background: var(--teal-light);
  border: 2px solid transparent;
  background-image: linear-gradient(var(--teal-light), var(--teal-light)), var(--primary-gradient);
  background-origin: border-box;
  background-clip: padding-box, border-box;
}

.feature-card.feature-main::before {
  display: none;
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: var(--primary-gradient);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 20px;
  box-shadow: 0 6px 16px rgba(14, 124, 114, 0.2);
}

.feature-card.feature-main .feature-icon {
  background: var(--accent);
  box-shadow: 0 6px 16px rgba(255, 106, 61, 0.25);
  width: 56px;
  height: 56px;
  font-size: 24px;
}

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

.feature-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
}

.feature-link {
  font-size: 14px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.3s ease;
}

.feature-link:hover {
  gap: 10px;
  text-decoration: none;
  color: var(--primary-dark);
}

/* ====== Scenarios ====== */
.scenarios {
  background: var(--bg-warm);
}

.scenarios-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  grid-template-rows: 260px 260px;
  gap: 24px;
}

.scenario-card {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all 0.35s ease;
  display: flex;
  align-items: flex-end;
  text-decoration: none;
}

.scenario-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
  text-decoration: none;
}

.scenario-card.big {
  grid-row: span 2;
  min-height: 544px;
}

.scenario-card .scenario-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transition: transform 0.5s ease;
}

.scenario-card:hover .scenario-bg {
  transform: scale(1.06);
}

.scenario-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(18, 49, 46, 0.75) 0%, rgba(18, 49, 46, 0.2) 60%, rgba(18, 49, 46, 0) 100%);
}

.scenario-info {
  position: absolute;
  left: 20px;
  right: 20px;
  bottom: 20px;
  z-index: 2;
  color: white;
}

.scenario-info .scenario-label {
  display: inline-block;
  font-size: 12px;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(4px);
  border-radius: 999px;
  padding: 3px 10px;
  margin-bottom: 8px;
  color: rgba(255, 255, 255, 0.9);
}

.scenario-info h3 {
  font-size: 18px;
  color: white;
  font-weight: 700;
  margin-bottom: 4px;
}

.scenario-info .user-group {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 8px;
}

.scenario-info .btn-go {
  color: white;
  font-size: 14px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.scenario-info .btn-go:hover {
  gap: 10px;
}

/* ====== Cases ====== */
.cases {
  background: var(--white);
}

.case-list {
  border-top: 1px solid var(--border-light);
}

.case-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 24px;
  padding: 32px 16px;
  border-bottom: 1px solid var(--border-light);
  transition: background 0.3s ease;
}

.case-row:hover {
  background: var(--teal-light);
}

.case-logo {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  background: var(--teal-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  font-weight: 800;
  color: var(--primary);
  flex-shrink: 0;
}

.case-main {
  flex: 1;
  min-width: 240px;
}

.case-main h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 4px;
}

.case-main p {
  font-size: 14px;
  color: var(--text-secondary);
  max-width: 600px;
}

.case-metrics {
  display: flex;
  align-items: center;
  gap: 24px;
}

.case-metric-item {
  text-align: right;
  min-width: 90px;
}

.case-metric-item .metric-value {
  font-size: 22px;
  font-weight: 800;
  color: var(--primary);
  display: flex;
  align-items: baseline;
  gap: 2px;
  justify-content: flex-end;
}

.case-metric-item .metric-value .metric-unit {
  font-size: 14px;
  color: var(--text-muted);
}

.case-metric-item .metric-label {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 2px;
}

.case-tag-list {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

/* ====== Pricing ====== */
.pricing {
  background: var(--bg-warm);
  position: relative;
  overflow: hidden;
}

.pricing::before {
  content: "";
  position: absolute;
  right: -160px;
  top: -160px;
  background: radial-gradient(circle, rgba(14, 124, 114, 0.08) 0%, transparent 60%);
  width: 400px;
  height: 400px;
  border-radius: 50%;
  z-index: 0;
}

.pricing-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  max-width: 900px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.pricing-card {
  background: var(--white);
  border: 2px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 40px;
  position: relative;
  transition: all 0.35s ease;
  display: flex;
  flex-direction: column;
}

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

.pricing-card.highlight {
  border-color: var(--accent);
  box-shadow: 0 14px 40px rgba(255, 106, 61, 0.15);
}

.pricing-card .popular-badge {
  position: absolute;
  top: -14px;
  right: 28px;
  background: var(--accent);
  color: white;
  font-size: 13px;
  font-weight: 600;
  padding: 4px 16px;
  border-radius: 999px;
  box-shadow: 0 4px 12px rgba(255, 106, 61, 0.3);
}

.pricing-name {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 4px;
}

.pricing-desc {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.pricing-price {
  font-size: 52px;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.2;
  letter-spacing: -2px;
  margin-bottom: 4px;
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.pricing-price .price-unit {
  font-size: 16px;
  color: var(--text-secondary);
  font-weight: 400;
}

.pricing-period {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 28px;
}

.pricing-features {
  list-style: none;
  margin-bottom: 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.pricing-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.pricing-features li .check {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--teal-light);
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 800;
  flex-shrink: 0;
  margin-top: 2px;
}

.pricing-features li.disabled {
  color: var(--text-muted);
  text-decoration: line-through;
}

.pricing-features li.disabled .check {
  background: #F1F3F2;
  color: var(--text-muted);
}

.pricing-btn-wrap {
  margin-top: auto;
}

/* ====== News ====== */
.news-section {
  background: var(--white);
}

.news-layout {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 60px;
}

.news-heading h2 {
  font-size: 32px;
  margin-bottom: 16px;
}

.news-heading p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.news-heading .contact-link {
  display: inline-block;
  margin-top: 16px;
  font-size: 14px;
  font-weight: 600;
}

.news-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.news-card {
  display: flex;
  align-items: flex-start;
  gap: 24px;
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: all 0.3s ease;
  text-decoration: none;
  position: relative;
}

.news-card:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(14, 124, 114, 0.25);
  transform: translateY(-2px);
  text-decoration: none;
}

.news-thumb {
  width: 120px;
  height: 90px;
  border-radius: 12px;
  background-size: cover;
  background-position: center;
  background-color: var(--teal-light);
  flex-shrink: 0;
  position: relative;
  overflow: hidden;
}

.news-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

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

.news-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.news-meta .news-tag {
  display: inline-block;
  background: var(--teal-light);
  color: var(--primary);
  font-size: 12px;
  padding: 2px 10px;
  border-radius: 999px;
}

.news-meta .news-date {
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 4px;
}

.news-body h3 {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 6px;
  transition: color 0.2s;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
}

.news-body p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  margin-bottom: 10px;
}

.news-link {
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap 0.3s ease;
}

.news-card:hover .news-link {
  gap: 8px;
}

.news-empty {
  background: #FAF9F7;
  border: 1px dashed var(--border-light);
  border-radius: var(--radius-md);
  padding: 48px 32px;
  text-align: center;
}

.news-empty .empty-icon {
  font-size: 40px;
  margin-bottom: 12px;
  color: var(--text-muted);
}

.news-empty h4 {
  font-size: 17px;
  color: var(--text-secondary);
  font-weight: 600;
  margin-bottom: 6px;
}

.news-empty p {
  font-size: 14px;
  color: var(--text-muted);
}

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

.faq-layout {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 72px;
}

.faq-heading h2 {
  font-size: 32px;
  margin-bottom: 16px;
}

.faq-heading p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.faq-heading .faq-contact {
  margin-top: 24px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
}

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

.faq-item {
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: 14px;
  overflow: hidden;
  transition: all 0.3s ease;
}

.faq-item:hover {
  box-shadow: var(--shadow-sm);
}

.faq-item.open {
  border-color: rgba(14, 124, 114, 0.3);
  background: var(--white);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 24px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  transition: color 0.3s ease;
  background: transparent;
  width: 100%;
  text-align: left;
}

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

.faq-question .faq-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 16px;
  color: var(--primary);
  transition: all 0.3s ease;
  font-style: normal;
}

.faq-item.open .faq-question .faq-icon {
  background: var(--teal-light);
  transform: rotate(135deg);
  border-color: var(--primary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  padding: 0 24px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-secondary);
}

.faq-item.open .faq-answer {
  max-height: 400px;
  padding: 0 24px 24px;
}

/* ====== CTA ====== */
.cta-section {
  padding: 90px 0;
  position: relative;
  background-image: url('/assets/images/backpic/back-3.webp');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}

.cta-section .cta-overlay {
  position: absolute;
  inset: 0;
  background: rgba(10, 100, 93, 0.85);
  mix-blend-mode: multiply;
}

.cta-section .container {
  position: relative;
  z-index: 2;
  text-align: center;
  color: white;
}

.cta-section h2 {
  font-size: 34px;
  color: white;
  margin-bottom: 16px;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.cta-section p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.85);
  max-width: 480px;
  margin: 0 auto 32px;
}

.cta-section .btn-cta {
  background: var(--accent);
  color: white;
  height: 56px;
  padding: 0 52px;
  font-size: 17px;
  font-weight: 700;
  border-radius: 12px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
}

.cta-section .btn-cta:hover {
  background: var(--accent-light);
  transform: translateY(-2px);
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.25);
}

/* ====== Footer ====== */
.site-footer {
  background: #12312E;
  color: #E8F0EE;
  padding: 72px 0 0;
  margin-top: 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.4fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand .logo {
  color: white;
  font-size: 19px;
  margin-bottom: 16px;
}

.footer-brand .logo-icon {
  background: var(--primary-gradient);
}

.footer-brand p {
  font-size: 14px;
  color: rgba(232, 240, 238, 0.65);
  line-height: 1.7;
  max-width: 260px;
}

.footer-title {
  font-size: 15px;
  font-weight: 700;
  color: white;
  margin-bottom: 20px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  color: rgba(232, 240, 238, 0.65);
  font-size: 14px;
  transition: color 0.25s ease;
}

.footer-links a:hover {
  color: var(--accent);
  text-decoration: none;
}

.footer-about {
  font-size: 14px;
  color: rgba(232, 240, 238, 0.65);
  line-height: 1.7;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 24px 0;
  font-size: 13px;
  color: rgba(232, 240, 238, 0.4);
}

.footer-bottom a {
  color: rgba(232, 240, 238, 0.5);
  transition: color 0.2s;
}

.footer-bottom a:hover {
  color: var(--accent);
  text-decoration: none;
}

.footer-icp {
  font-size: 13px;
  color: rgba(232, 240, 238, 0.35);
}

/* ====== Responsive ====== */
@media (max-width: 991px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 56px;
  }

  .hero-content {
    max-width: none;
  }

  .hero-visual {
    height: auto;
  }

  .hero-main-card {
    height: 360px;
  }

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

  .feature-anchor {
    position: static;
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    padding-top: 0;
  }

  .feature-anchor h3 {
    margin-bottom: 0;
    white-space: nowrap;
  }

  .feature-anchor ul {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 8px;
  }

  .scenarios-grid {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 240px 240px;
  }

  .scenario-card.big {
    grid-column: span 2;
    grid-row: span 1;
    min-height: 240px;
  }

  .news-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .faq-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }

  .case-row {
    padding: 24px 12px;
  }

  .case-metrics {
    flex-wrap: wrap;
  }
}

@media (max-width: 767px) {
  :root {
    --sp-section: var(--sp-section-mobile);
  }

  .container {
    padding: 0 16px;
  }

  .site-header {
    padding: 0 12px;
    top: 12px;
  }

  .nav-shell {
    padding: 8px 12px 8px 16px;
    border-radius: 999px;
  }

  .nav-menu {
    display: none;
    position: absolute;
    top: calc(100% + 10px);
    left: 12px;
    right: 12px;
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(20px);
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-light);
    padding: 16px;
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }

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

  .nav-menu a {
    padding: 12px 16px;
    border-radius: 12px;
    font-size: 15px;
  }

  .nav-menu a.active {
    background: var(--teal-light);
  }

  .nav-cta .btn-sm {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .hero {
    padding: 60px 0 60px;
  }

  .hero h1 {
    font-size: 30px;
    line-height: 1.3;
  }

  .hero h1 .highlight {
    white-space: normal;
  }

  .hero-desc {
    font-size: 16px;
  }

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

  .hero-stats {
    flex-direction: column;
    gap: 10px;
  }

  .hero-visual {
    margin-top: 20px;
  }

  .hero-main-card {
    height: 320px;
    max-width: 100%;
  }

  .hero-float-badge {
    display: none;
  }

  .section-header {
    margin-bottom: 32px;
  }

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

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

  .feature-card.feature-main {
    grid-column: span 1;
  }

  .scenarios-grid {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
    gap: 16px;
  }

  .scenario-card {
    min-height: 220px;
  }

  .scenario-card.big {
    grid-column: span 1;
    grid-row: span 1;
    min-height: 220px;
  }

  .case-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .case-metrics {
    width: 100%;
    justify-content: space-between;
  }

  .case-metric-item {
    text-align: left;
    min-width: 0;
  }

  .case-metric-item .metric-value {
    justify-content: flex-start;
  }

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

  .pricing-card {
    padding: 32px 24px;
  }

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

  .news-thumb {
    width: 100%;
    height: 140px;
  }

  .news-body h3 {
    -webkit-line-clamp: 2;
  }

  .news-body p {
    -webkit-line-clamp: 3;
  }

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

  .cta-section h2 {
    font-size: 27px;
  }

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

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

@media (max-width: 520px) {
  .nav-cta .btn-sm {
    display: none;
  }

  .btn-lg {
    height: 48px;
    padding: 0 28px;
    font-size: 15px;
  }

  .section {
    padding: 48px 0;
  }

  .hero-stats {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .stat-card {
    min-width: calc(50% - 5px);
    padding: 14px 16px;
  }

  .stat-card .stat-value {
    font-size: 22px;
  }

  .feature-card {
    padding: 24px;
  }

  .pricing-card .popular-badge {
    right: 16px;
  }
}

/* roulang page: category1 */
:root {
  --primary: #0E7C72;
  --primary-dark: #0A645D;
  --primary-light: #14B09B;
  --accent: #FF6A3D;
  --accent-light: #FF8258;
  --bg: #F8F6F2;
  --white: #FFFFFF;
  --text: #1B2B2A;
  --text-2: #5B6B68;
  --text-3: #A8B5B1;
  --line: #E5E9E6;
  --radius-xl: 24px;
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-pill: 999px;
  --shadow: 0 8px 30px rgba(27,43,42,0.08);
  --shadow-hover: 0 14px 36px rgba(27,43,42,0.12);
  --font: -apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","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);background:var(--bg);color:var(--text);line-height:1.75;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary-dark)}
ul,ol{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
@media(max-width:767px){.container{padding:0 16px}}
.main{margin-top:80px}
/* 导航 */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;padding:16px 0 0;pointer-events:none}
.nav-shell{max-width:1200px;margin:0 auto;padding:10px 20px;background:rgba(255,255,255,0.82);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,0.5);border-radius:var(--radius-pill);box-shadow:0 6px 20px rgba(27,43,42,0.06);display:flex;align-items:center;justify-content:space-between;pointer-events:auto;gap:16px}
@media(max-width:767px){.nav-shell{padding:8px 16px}}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:17px;color:var(--text);white-space:nowrap}
.logo:hover{color:var(--primary)}
.logo-icon{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;font-size:17px;font-weight:800;flex-shrink:0}
.nav-menu{display:flex;align-items:center;gap:4px}
.nav-menu a{padding:8px 18px;border-radius:var(--radius-pill);font-size:15px;font-weight:500;color:var(--text);transition:all .2s ease}
.nav-menu a:hover{background:var(--bg);color:var(--primary)}
.nav-menu a.active{background:rgba(14,124,114,0.1);color:var(--primary);font-weight:600}
.nav-cta{display:flex;align-items:center;gap:12px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:none;cursor:pointer;font-family:var(--font);font-weight:600;font-size:15px;line-height:1;border-radius:var(--radius-md);padding:12px 24px;height:46px;transition:all .2s ease;text-decoration:none}
.btn:focus-visible{outline:2px solid rgba(14,124,114,0.4);outline-offset:2px}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-light);color:#fff;transform:translateY(-2px);box-shadow:0 10px 26px rgba(255,106,61,0.3)}
.btn-outline{background:transparent;border:1px solid var(--primary);color:var(--primary)}
.btn-outline:hover{background:rgba(14,124,114,0.08);color:var(--primary-dark)}
.btn-sm{height:38px;padding:0 20px;font-size:14px;border-radius:var(--radius-pill)}
.btn-lg{height:52px;padding:0 34px;font-size:16px;border-radius:var(--radius-md)}
.nav-toggle{display:none;background:none;border:none;color:var(--text);cursor:pointer;width:40px;height:40px;align-items:center;justify-content:center;border-radius:10px;transition:background .2s}
.nav-toggle:hover{background:var(--bg)}
@media(max-width:767px){
  .nav-toggle{display:inline-flex}
  .nav-menu{display:none;position:absolute;top:66px;left:16px;right:16px;background:rgba(255,255,255,0.96);backdrop-filter:blur(12px);border-radius:var(--radius-lg);box-shadow:var(--shadow-hover);padding:16px;flex-direction:column;align-items:stretch;gap:4px;z-index:999}
  .nav-menu.open{display:flex}
  .nav-menu a{padding:14px 18px;border-radius:var(--radius-md);font-size:15px}
  .nav-cta .btn-sm{display:none}
}
/* 按钮通用 */
/* Hero 板块 */
.page-hero{position:relative;padding:180px 0 90px;background:linear-gradient(135deg,rgba(14,124,114,0.12),rgba(255,106,61,0.05)),linear-gradient(rgba(248,246,242,0.92),rgba(248,246,242,0.96)),url('/assets/images/backpic/back-1.png') center/cover no-repeat;overflow:hidden}
.page-hero::before{content:"";position:absolute;top:-120px;right:-80px;width:480px;height:480px;background:radial-gradient(circle,rgba(14,124,114,0.16),transparent 65%);pointer-events:none}
.page-hero::after{content:"";position:absolute;bottom:-160px;left:-60px;width:420px;height:420px;background:radial-gradient(circle,rgba(255,106,61,0.1),transparent 65%);pointer-events:none}
.hero-inner{position:relative;z-index:2;text-align:center;max-width:820px;margin:0 auto}
.hero-tag{display:inline-flex;align-items:center;gap:8px;background:rgba(14,124,114,0.1);color:var(--primary);font-size:14px;font-weight:600;border-radius:var(--radius-pill);padding:8px 18px;margin-bottom:24px}
.hero-tag::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--accent)}
.page-hero h1{font-size:44px;line-height:1.2;font-weight:700;color:var(--text);letter-spacing:-0.5px;margin-bottom:18px}
@media(max-width:767px){.page-hero h1{font-size:32px}}
.hero-sub{font-size:18px;color:var(--text-2);max-width:680px;margin:0 auto 32px;line-height:1.75}
.hero-ctas{display:flex;justify-content:center;gap:16px;flex-wrap:wrap;margin-bottom:44px}
.hero-stats{display:flex;justify-content:center;gap:20px;flex-wrap:wrap}
.stat-item{background:var(--white);border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:18px 26px;display:flex;flex-direction:column;align-items:center;min-width:120px;position:relative;transition:transform .2s ease,box-shadow .2s ease}
.stat-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.stat-item::before{content:"";position:absolute;top:14px;left:14px;width:8px;height:8px;border-radius:50%;background:var(--accent)}
.stat-value{font-size:26px;font-weight:800;color:var(--primary);line-height:1.2}
.stat-label{font-size:13px;color:var(--text-2);margin-top:4px}
@media(max-width:767px){.page-hero{padding:150px 0 60px}.hero-stats{gap:12px}.stat-item{padding:14px 20px;min-width:100px}}
/* 区块通用 */
.section{padding:80px 0}
@media(max-width:767px){.section{padding:56px 0}}
.section-head{margin-bottom:44px;max-width:720px}
.section-tag{display:inline-block;background:rgba(14,124,114,0.08);color:var(--primary);font-size:13px;font-weight:600;padding:6px 16px;border-radius:var(--radius-pill);margin-bottom:14px}
.section-title{font-size:30px;line-height:1.3;font-weight:700;color:var(--text);letter-spacing:-0.3px}
@media(max-width:767px){.section-title{font-size:24px}}
.section-sub{color:var(--text-2);font-size:16px;margin-top:10px}
/* 介绍卡 */
.intro-section{background:var(--bg)}
.intro-card{background:var(--white);border-radius:var(--radius-xl);box-shadow:var(--shadow);padding:48px;display:grid;grid-template-columns:1.4fr 1fr;gap:48px;position:relative;overflow:hidden}
.intro-card::after{content:"";position:absolute;right:-40px;bottom:-40px;width:200px;height:200px;background:url('/assets/images/coverpic/cover-5.png') center/cover no-repeat;opacity:0.06;border-radius:50%;pointer-events:none}
.intro-card h2{font-size:26px;color:var(--text);margin-bottom:18px;line-height:1.3}
.intro-card p{color:var(--text-2);font-size:16px;line-height:1.8;margin-bottom:16px}
.intro-card p:last-child{margin-bottom:0}
.intro-points{display:flex;flex-direction:column;gap:18px;justify-content:center}
.intro-point{display:flex;align-items:flex-start;gap:14px;padding:18px 20px;background:var(--bg);border-radius:var(--radius-lg);border-left:4px solid var(--primary)}
.intro-point-icon{flex-shrink:0;width:40px;height:40px;border-radius:12px;background:linear-gradient(135deg,var(--primary),var(--primary-light));display:flex;align-items:center;justify-content:center;color:#fff}
.intro-point-icon svg{width:20px;height:20px}
.intro-point h3{font-size:16px;color:var(--text);margin-bottom:4px}
.intro-point p{font-size:14px;color:var(--text-2);margin:0;line-height:1.6}
@media(max-width:991px){.intro-card{grid-template-columns:1fr;padding:32px;gap:28px}}
@media(max-width:767px){.intro-card{padding:24px}}
/* 特色交替 */
.features-section{background:var(--white)}
.feature-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:56px 0;border-bottom:1px solid var(--line)}
.feature-row:last-child{border-bottom:none;padding-bottom:0}
.feature-row:first-child{padding-top:0}
.feature-image{position:relative;border-radius:var(--radius-xl);overflow:hidden;box-shadow:var(--shadow)}
.feature-image img{width:100%;height:360px;object-fit:cover;transition:transform .4s ease}
.feature-image::after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(14,124,114,0.16),rgba(255,106,61,0.05));pointer-events:none;border-radius:var(--radius-xl)}
.feature-row:hover .feature-image img{transform:scale(1.02)}
.feature-image .feature-badge{position:absolute;top:16px;left:16px;z-index:2;background:rgba(255,255,255,0.9);backdrop-filter:blur(6px);color:var(--primary);font-size:13px;font-weight:600;padding:6px 14px;border-radius:var(--radius-pill)}
.feature-content h3{font-size:22px;color:var(--text);margin-bottom:12px;line-height:1.3}
.feature-content p{color:var(--text-2);font-size:16px;line-height:1.75;margin-bottom:16px}
.feature-list{display:flex;flex-direction:column;gap:10px}
.feature-list li{display:flex;align-items:flex-start;gap:10px;color:var(--text);font-size:15px}
.feature-list li::before{content:"";flex-shrink:0;width:6px;height:6px;border-radius:50%;background:var(--accent);margin-top:10px}
.feature-row:nth-child(even) .feature-image{order:2}
.feature-row:nth-child(even) .feature-content{order:1}
@media(max-width:991px){.feature-row{grid-template-columns:1fr;gap:28px;padding:40px 0}.feature-row .feature-image,.feature-row:nth-child(even) .feature-image{order:unset}.feature-image img{height:280px}}
/* 流程步骤 */
.steps-section{background:linear-gradient(180deg,var(--bg),rgba(14,124,114,0.04))}
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.step-card{background:var(--white);border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:32px 24px;position:relative;transition:transform .2s ease,box-shadow .2s ease;text-align:center}
.step-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.step-num{width:52px;height:52px;border-radius:16px;background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;font-size:20px;font-weight:800;display:flex;align-items:center;justify-content:center;margin:0 auto 18px}
.step-card h3{font-size:17px;color:var(--text);margin-bottom:10px}
.step-card p{font-size:14px;color:var(--text-2);line-height:1.7}
.step-arrow{position:absolute;top:50%;right:-20px;transform:translateY(-50%);color:var(--primary-light);font-size:22px;z-index:2;background:var(--bg);border-radius:50%;width:32px;height:32px;display:flex;align-items:center;justify-content:center}
.step-card:last-child .step-arrow{display:none}
@media(max-width:991px){.steps-grid{grid-template-columns:repeat(2,1fr);gap:20px}.step-arrow{display:none}}
@media(max-width:767px){.steps-grid{grid-template-columns:1fr}}
/* FAQ */
.faq-section{background:var(--white)}
.faq-block{display:grid;grid-template-columns:340px 1fr;gap:60px}
.faq-side .section-title{margin-bottom:12px}
.faq-side .section-sub{color:var(--text-2);font-size:15px;line-height:1.7}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{background:var(--bg);border-radius:var(--radius-lg);border:1px solid transparent;transition:all .25s ease;overflow:hidden}
.faq-item.active{background:var(--white);border-color:rgba(14,124,114,0.2);box-shadow:var(--shadow)}
.faq-question{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;background:none;border:none;cursor:pointer;padding:20px 24px;font-family:var(--font);font-size:16px;font-weight:600;color:var(--text);text-align:left;transition:color .2s}
.faq-question:hover{color:var(--primary)}
.faq-icon{flex-shrink:0;width:28px;height:28px;border-radius:50%;background:rgba(14,124,114,0.1);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:500;transition:all .25s ease}
.faq-item.active .faq-icon{background:var(--primary);color:#fff;transform:rotate(45deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-answer p{padding:0 24px 20px;color:var(--text-2);font-size:15px;line-height:1.75}
.faq-item.active .faq-answer{max-height:300px}
@media(max-width:991px){.faq-block{grid-template-columns:1fr;gap:36px}}
/* 相关导航 */
.related-section{background:var(--bg)}
.related-card{background:linear-gradient(135deg,rgba(14,124,114,0.08),rgba(255,106,61,0.05)),var(--white);border-radius:var(--radius-xl);box-shadow:var(--shadow);padding:48px;text-align:center;position:relative;overflow:hidden}
.related-card::before{content:"";position:absolute;top:-60px;right:-60px;width:200px;height:200px;background:radial-gradient(circle,rgba(14,124,114,0.14),transparent 70%);border-radius:50%}
.related-card h2{font-size:28px;color:var(--text);margin-bottom:12px}
.related-card p{color:var(--text-2);max-width:560px;margin:0 auto 28px;font-size:15px}
.related-links{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
@media(max-width:767px){.related-card{padding:32px 20px}.related-links .btn{width:100%}}
/* 页脚 */
.site-footer{background:#12312E;color:#E8F0EE;padding:64px 0 24px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;margin-bottom:44px}
.footer-brand .logo{color:#fff;margin-bottom:14px}
.footer-brand p{font-size:14px;line-height:1.7;color:rgba(232,240,238,0.7);margin-bottom:16px}
.footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{color:rgba(232,240,238,0.7);font-size:14px;transition:color .2s}
.footer-links a:hover{color:var(--accent-light)}
.footer-about{font-size:14px;line-height:1.7;color:rgba(232,240,238,0.7)}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.1);padding-top:20px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:rgba(232,240,238,0.5)}
.footer-bottom a{color:rgba(232,240,238,0.7);font-size:13px}
.footer-bottom a:hover{color:var(--accent-light)}
.footer-icp{color:rgba(232,240,238,0.4)}
@media(max-width:991px){.footer-grid{grid-template-columns:1fr 1fr;gap:28px}}
@media(max-width:767px){.footer-grid{grid-template-columns:1fr}.footer-bottom{flex-direction:column;text-align:center}}

/* roulang page: article */
:root {
  --primary: #0E7C72;
  --primary-dark: #0A645D;
  --primary-light: #E6F4F1;
  --primary-grad: linear-gradient(135deg, #0E7C72, #14B09B);
  --accent: #FF6A3D;
  --accent-light: #FF8258;
  --bg: #F8F6F2;
  --white: #ffffff;
  --ink: #1B2B2A;
  --muted: #5B6B68;
  --border: #E4EAE8;
  --shadow: 0 8px 30px rgba(27,43,42,.08);
  --shadow-lg: 0 14px 36px rgba(27,43,42,.12);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: var(--font); background: var(--bg); color: var(--ink); line-height: 1.75; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; transition: color .2s; }
a:hover { text-decoration: underline; }
::selection { background: rgba(14,124,114,.15); }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 44px; padding: 0 24px; border-radius: var(--radius-sm); border: none; font-size: 15px; font-weight: 600; cursor: pointer; text-decoration: none; transition: all .25s; }
.btn-primary { background: var(--primary); color: var(--white); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); text-decoration: none; box-shadow: var(--shadow); }
.btn-accent { background: var(--accent); color: var(--white); }
.btn-accent:hover { background: var(--accent-light); transform: translateY(-2px); text-decoration: none; box-shadow: var(--shadow); }
.btn-outline { background: transparent; border: 1px solid var(--primary); color: var(--primary); }
.btn-outline:hover { background: var(--primary-light); transform: translateY(-2px); text-decoration: none; }
.btn-sm { height: 38px; padding: 0 18px; font-size: 14px; border-radius: 999px; }
.btn-lg { height: 52px; padding: 0 40px; font-size: 16px; border-radius: 12px; }
.btn:focus-visible { outline: 2px solid rgba(14,124,114,.4); outline-offset: 2px; }

/* Header */
.site-header { position: fixed; top: 16px; left: 0; right: 0; z-index: 100; padding: 0 24px; }
.nav-shell { max-width: 1200px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; background: rgba(255,255,255,.82); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border: 1px solid rgba(255,255,255,.5); box-shadow: 0 6px 20px rgba(27,43,42,.06); border-radius: 999px; padding: 10px 12px 10px 20px; gap: 12px; }
.logo { display: flex; align-items: center; gap: 10px; font-size: 17px; font-weight: 800; color: var(--ink); text-decoration: none; white-space: nowrap; }
.logo:hover { text-decoration: none; }
.logo-icon { width: 34px; height: 34px; border-radius: 10px; background: var(--primary-grad); color: var(--white); display: flex; align-items: center; justify-content: center; font-size: 17px; font-weight: 800; flex-shrink: 0; }
.nav-menu { display: flex; align-items: center; gap: 6px; }
.nav-menu a { padding: 8px 16px; border-radius: 999px; font-size: 15px; color: var(--ink); text-decoration: none; transition: all .2s; }
.nav-menu a:hover { background: var(--primary-light); color: var(--primary); text-decoration: none; }
.nav-menu a.active { background: var(--primary-light); color: var(--primary); font-weight: 600; }
.nav-cta { display: flex; align-items: center; gap: 8px; }
.nav-cta .btn { border-radius: 999px; }
.nav-toggle { display: none; align-items: center; justify-content: center; width: 38px; height: 38px; border: none; border-radius: 999px; background: var(--primary-light); color: var(--primary); cursor: pointer; transition: all .2s; }
.nav-toggle:hover { background: rgba(14,124,114,.18); }
.menu-login { display: none; }

/* Page Banner */
.page-banner { padding: 150px 0 56px; background: linear-gradient(180deg, #DFF2EE 0%, #F8F6F2 100%); position: relative; overflow: hidden; }
.page-banner::before { content: ""; position: absolute; width: 420px; height: 420px; left: -120px; top: -120px; background: radial-gradient(circle, rgba(14,124,114,.14), transparent 70%); pointer-events: none; }
.page-banner::after { content: ""; position: absolute; width: 320px; height: 320px; right: -80px; bottom: -120px; background: radial-gradient(circle, rgba(255,106,61,.10), transparent 70%); pointer-events: none; }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 6px; font-size: 13px; color: var(--muted); position: relative; z-index: 1; }
.breadcrumb a { color: var(--primary); text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb .sep { color: #C2CDCA; }
.breadcrumb .current { color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 360px; }

/* Article Header */
.article-header { max-width: 860px; margin: 32px auto 0; position: relative; z-index: 1; }
.article-header h1 { font-size: 40px; line-height: 1.3; font-weight: 700; margin: 16px 0 16px; color: var(--ink); letter-spacing: -0.02em; }
.post-tag-row { margin-bottom: 6px; }
.post-tag { display: inline-block; background: rgba(255,255,255,.8); color: var(--primary); border: 1px solid rgba(14,124,114,.25); padding: 4px 14px; border-radius: 999px; font-size: 13px; font-weight: 600; }
.post-meta { display: flex; flex-wrap: wrap; gap: 18px; font-size: 13px; color: var(--muted); }
.meta-item { display: inline-flex; align-items: center; gap: 6px; }

/* Post Wrap */
.post-wrap { padding: 40px 0 0; position: relative; z-index: 2; }
.post-card { background: var(--white); border-radius: var(--radius-lg); box-shadow: var(--shadow); padding: 56px; }
.post-content { max-width: 720px; margin: 0 auto; line-height: 1.85; font-size: 16px; color: var(--ink); }
.post-content h2 { font-size: 26px; font-weight: 700; margin: 40px 0 16px; padding-top: 8px; line-height: 1.4; }
.post-content h3 { font-size: 20px; font-weight: 700; margin: 32px 0 12px; line-height: 1.45; }
.post-content p { margin: 0 0 1em; }
.post-content a { color: var(--primary); }
.post-content blockquote { background: var(--primary-light); border-left: 4px solid var(--primary); border-radius: 0 12px 12px 0; padding: 18px 22px; margin: 28px 0; color: #2F4A45; }
.post-content ul, .post-content ol { margin: 0 0 1em; padding-left: 24px; }
.post-content li { margin-bottom: 6px; }
.post-content img { width: 100%; border-radius: 12px; margin: 28px 0; box-shadow: var(--shadow); }
.post-content table { width: 100%; border-collapse: collapse; margin: 28px 0; background: var(--white); border-radius: 12px; overflow: hidden; }
.post-content th { background: var(--primary-light); color: var(--ink); padding: 12px 16px; text-align: left; font-weight: 600; }
.post-content td { padding: 12px 16px; border-top: 1px solid var(--border); }
.post-content pre { background: #12312E; color: #E8F0EE; padding: 20px; border-radius: 12px; overflow-x: auto; margin: 28px 0; font-size: 14px; line-height: 1.7; }

/* Post Nav */
.post-nav { max-width: 720px; margin: 40px auto 0; display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.post-nav-item { background: var(--bg); border-radius: var(--radius-md); padding: 20px 22px; text-decoration: none; color: var(--ink); border: 1px solid transparent; transition: all .3s; display: block; }
.post-nav-item:hover { background: var(--primary-light); border-color: rgba(14,124,114,.2); text-decoration: none; transform: translateY(-2px); box-shadow: var(--shadow); }
.post-nav-item.next { text-align: right; }
.nav-label { font-size: 13px; color: var(--muted); display: block; margin-bottom: 8px; }
.nav-title { font-size: 15px; font-weight: 600; line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* Empty State */
.post-empty { max-width: 520px; margin: 40px auto; text-align: center; padding: 40px 24px; }
.post-empty .empty-icon { width: 64px; height: 64px; border-radius: 50%; background: var(--primary-light); color: var(--primary); display: flex; align-items: center; justify-content: center; margin: 0 auto 20px; font-size: 28px; font-weight: 800; }
.post-empty h2 { font-size: 24px; font-weight: 700; margin: 0 0 10px; }
.post-empty p { color: var(--muted); margin: 0 0 24px; font-size: 15px; }

/* Related */
.related-posts { padding: 64px 0 24px; }
.related-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; margin-bottom: 32px; }
.section-sub { font-size: 14px; color: var(--primary); font-weight: 600; letter-spacing: .04em; margin-bottom: 4px; }
.section-title { font-size: 28px; font-weight: 800; margin: 0; color: var(--ink); line-height: 1.35; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-card { background: var(--white); border-radius: var(--radius-md); padding: 20px; box-shadow: var(--shadow); transition: transform .25s, box-shadow .25s; display: flex; flex-direction: column; }
.news-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.news-thumb { border-radius: 12px; overflow: hidden; margin-bottom: 16px; aspect-ratio: 16 / 10; background: var(--primary-light); display: block; }
.news-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s; }
.news-card:hover .news-thumb img { transform: scale(1.04); }
.news-tag { align-self: flex-start; background: var(--primary-light); color: var(--primary); font-size: 13px; font-weight: 500; padding: 3px 12px; border-radius: 999px; }
.news-card h3 { font-size: 18px; line-height: 1.5; margin: 12px 0 8px; font-weight: 600; }
.news-card h3 a { color: var(--ink); text-decoration: none; transition: color .2s; }
.news-card h3 a:hover { color: var(--primary); }
.news-card p { font-size: 14px; color: var(--muted); margin: 0 0 16px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-meta { display: flex; justify-content: space-between; align-items: center; font-size: 13px; color: var(--muted); margin-top: auto; }
.news-meta time { color: var(--muted); }
.news-meta a { display: inline-flex; align-items: center; gap: 4px; color: var(--primary); font-weight: 500; text-decoration: none; }
.news-meta a:hover { text-decoration: none; }
.news-meta .arrow { transition: transform .25s; display: inline-block; }
.news-meta a:hover .arrow { transform: translateX(3px); }

/* FAQ */
.faq-section { padding: 72px 0; background: var(--white); }
.faq-wrap { display: grid; grid-template-columns: 1fr 1.35fr; gap: 56px; align-items: start; }
.faq-intro p { color: var(--muted); margin: 12px 0 0; font-size: 15px; }
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq-item { border: 1px solid var(--border); border-radius: 12px; overflow: hidden; background: var(--white); transition: border-color .25s, background .25s; }
.faq-item[open] { border-color: rgba(14,124,114,.35); background: var(--bg); }
.faq-item summary { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 18px 22px; font-weight: 600; font-size: 15px; cursor: pointer; list-style: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-icon { color: var(--primary); font-size: 22px; font-weight: 400; line-height: 1; flex-shrink: 0; transition: transform .25s; }
.faq-item[open] .faq-icon { transform: rotate(45deg); }
.faq-item .faq-body { padding: 0 22px 20px; color: var(--muted); font-size: 14.5px; line-height: 1.75; }

/* CTA */
.cta-section { padding: 64px 0 80px; }
.cta-card { border-radius: var(--radius-lg); padding: 64px 48px; text-align: center; color: var(--white); background: linear-gradient(120deg, rgba(14,124,114,.94), rgba(20,176,155,.88)), url('/assets/images/backpic/back-1.png') center/cover; box-shadow: var(--shadow-lg); position: relative; overflow: hidden; }
.cta-card::after { content: ""; position: absolute; width: 260px; height: 260px; right: -80px; top: -80px; background: radial-gradient(circle, rgba(255,255,255,.18), transparent 70%); pointer-events: none; }
.cta-card h2 { font-size: 32px; font-weight: 800; margin: 0 0 12px; color: var(--white); position: relative; z-index: 1; }
.cta-card p { color: rgba(255,255,255,.88); margin: 0 auto 30px; max-width: 560px; font-size: 16px; position: relative; z-index: 1; }
.cta-card .btn-accent { position: relative; z-index: 1; }
.cta-card .btn-accent:hover { background: #FF8A62; }

/* Footer */
.site-footer { background: #12312E; color: #E8F0EE; padding: 64px 0 32px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.6fr; gap: 40px; padding-bottom: 48px; }
.footer-brand .logo { color: var(--white); margin-bottom: 16px; }
.footer-brand .logo .logo-icon { background: linear-gradient(135deg, #0E7C72, #14B09B); }
.footer-brand p { color: rgba(232,240,238,.75); font-size: 14px; margin: 0; line-height: 1.75; }
.footer-title { font-size: 14px; color: rgba(232,240,238,.6); margin-bottom: 16px; font-weight: 600; }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { color: rgba(232,240,238,.8); font-size: 14px; text-decoration: none; transition: color .2s; }
.footer-links a:hover { color: #FF8A62; }
.footer-about { color: rgba(232,240,238,.7); font-size: 14px; line-height: 1.75; margin: 0; }
.footer-bottom { border-top: 1px solid rgba(232,240,238,.12); padding-top: 24px; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; font-size: 13px; color: rgba(232,240,238,.55); }
.footer-bottom a { color: rgba(232,240,238,.75); text-decoration: none; }
.footer-bottom a:hover { color: #FF8A62; }

/* Responsive */
@media (max-width: 992px) {
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .faq-wrap { grid-template-columns: 1fr; gap: 28px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .post-card { padding: 40px 32px; }
  .article-header h1 { font-size: 34px; }
}
@media (max-width: 768px) {
  .nav-menu { display: none; flex-direction: column; align-items: stretch; position: absolute; top: calc(100% + 10px); left: 0; right: 0; background: rgba(255,255,255,.96); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-radius: 16px; padding: 16px; box-shadow: var(--shadow-lg); gap: 4px; }
  .nav-menu.open { display: flex; }
  .nav-menu a { width: 100%; padding: 10px 16px; }
  .nav-cta .btn { display: none; }
  .nav-toggle { display: inline-flex; }
  .menu-login { display: none !important; }
  .nav-menu.open .menu-login { display: inline-flex !important; width: 100%; margin-top: 10px; border-radius: 10px !important; }
  .page-banner { padding: 130px 0 40px; }
  .article-header h1 { font-size: 28px; }
  .post-wrap { padding: 24px 0 0; }
  .post-card { padding: 24px 20px; border-radius: 18px; }
  .post-nav { grid-template-columns: 1fr; gap: 12px; }
  .related-grid { grid-template-columns: 1fr; }
  .cta-card { padding: 48px 24px; border-radius: 18px; }
  .cta-card h2 { font-size: 26px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .container { padding: 0 16px; }
  .breadcrumb .current { max-width: 200px; }
}
@media (max-width: 520px) {
  .logo { font-size: 15px; gap: 8px; }
  .logo-icon { width: 30px; height: 30px; font-size: 15px; }
  .nav-shell { padding-left: 14px; gap: 8px; }
  .related-head { flex-direction: column; align-items: flex-start; }
  .section-title { font-size: 24px; }
}

/* roulang page: category2 */
:root {
    --primary: #0E7C72;
    --primary-dark: #0A645D;
    --primary-light: #14B09B;
    --primary-grad: linear-gradient(135deg, #0E7C72, #14B09B);
    --accent: #FF6A3D;
    --accent-light: #FF8258;
    --bg-soft: #E6F4F1;
    --bg-warm: #F8F6F2;
    --bg-white: #FFFFFF;
    --text-main: #1B2B2A;
    --text-sub: #5B6B68;
    --text-disable: #A8B5B1;
    --footer-bg: #12312E;
    --radius-lg: 24px;
    --radius-md: 16px;
    --radius-sm: 10px;
    --shadow-card: 0 8px 30px rgba(27,43,42,0.08);
    --shadow-hover: 0 14px 36px rgba(27,43,42,0.12);
    --shadow-nav: 0 6px 20px rgba(27,43,42,0.06);
    --container: 1200px;
    --gap: 24px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    background: var(--bg-warm);
    color: var(--text-main);
    line-height: 1.75;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; transition: color .2s, opacity .2s; }
a:hover { color: var(--primary-dark); }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea { font-family: inherit; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-alt { background: var(--bg-white); }

/* ========== Header / Nav ========== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 24px 0;
    pointer-events: none;
}
.nav-shell {
    max-width: var(--container);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(255,255,255,0.82);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255,255,255,0.5);
    border-radius: 999px;
    padding: 10px 20px 10px 24px;
    box-shadow: var(--shadow-nav);
    pointer-events: auto;
    gap: 16px;
}
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 18px;
    color: var(--text-main);
    white-space: nowrap;
}
.logo:hover { color: var(--text-main); opacity: .85; }
.logo-icon {
    width: 36px;
    height: 36px;
    border-radius: 12px;
    background: var(--primary-grad);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 800;
    flex-shrink: 0;
}
.nav-menu {
    display: flex;
    align-items: center;
    gap: 4px;
}
.nav-menu a {
    padding: 8px 18px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-main);
    transition: background .2s, color .2s;
}
.nav-menu a:hover { background: var(--bg-soft); color: var(--primary); }
.nav-menu a.active { background: var(--bg-soft); color: var(--primary); font-weight: 600; }
.nav-cta {
    display: flex;
    align-items: center;
    gap: 10px;
}
.nav-toggle { display: none; padding: 8px; border-radius: 10px; color: var(--text-main); }
.nav-toggle:hover { background: var(--bg-soft); }

/* ========== Buttons ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 600;
    line-height: 1.4;
    transition: all .25s ease;
    white-space: nowrap;
    min-height: 44px;
    border: 1px solid transparent;
}
.btn:focus-visible { outline: 2px solid rgba(14,124,114,.4); outline-offset: 3px; }
.btn-primary { background: var(--primary-grad); color: #fff; }
.btn-primary:hover { background: linear-gradient(135deg, #0A645D, #0E7C72); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 20px rgba(14,124,114,.25); }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: var(--accent-light); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 20px rgba(255,106,61,.25); }
.btn-outline { background: transparent; border-color: var(--primary); color: var(--primary); }
.btn-outline:hover { background: var(--bg-soft); color: var(--primary); transform: translateY(-2px); }
.btn-sm { padding: 8px 20px; font-size: 14px; min-height: 38px; border-radius: 999px; }

/* ========== Hero ========== */
.category-hero {
    position: relative;
    padding: 180px 0 80px;
    overflow: hidden;
    background: var(--bg-warm);
}
.category-hero::before {
    content: '';
    position: absolute;
    width: 700px;
    height: 700px;
    top: -200px;
    right: -100px;
    background: radial-gradient(circle, rgba(14,124,114,0.12), transparent 70%);
    pointer-events: none;
    z-index: 0;
}
.category-hero::after {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    bottom: -150px;
    left: -100px;
    background: radial-gradient(circle, rgba(20,176,155,0.10), transparent 70%);
    pointer-events: none;
    z-index: 0;
}
.category-hero .container { position: relative; z-index: 1; }
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-sub);
    margin-bottom: 28px;
    flex-wrap: wrap;
}
.breadcrumb a { color: var(--text-sub); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: var(--text-disable); }
.hero-title {
    font-size: 44px;
    font-weight: 800;
    line-height: 1.25;
    margin-bottom: 18px;
    color: var(--text-main);
    letter-spacing: -0.5px;
}
.hero-sub {
    font-size: 18px;
    color: var(--text-sub);
    max-width: 640px;
    line-height: 1.7;
    margin-bottom: 36px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 48px; }
.hero-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}
.stat-card {
    background: var(--bg-white);
    border-radius: var(--radius-md);
    padding: 20px 28px;
    box-shadow: var(--shadow-card);
    min-width: 160px;
    transition: transform .25s, box-shadow .25s;
}
.stat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.stat-value {
    font-size: 30px;
    font-weight: 800;
    color: var(--primary);
    line-height: 1.2;
    margin-bottom: 4px;
    letter-spacing: -0.5px;
}
.stat-label { font-size: 13px; color: var(--text-sub); }
.stat-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
    margin-bottom: 8px;
    display: inline-block;
}

/* ========== Section Headers ========== */
.section-header {
    text-align: center;
    margin-bottom: 48px;
    max-width: 720px;
    margin-left: auto;
    margin-right: auto;
}
.section-header .tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 16px;
    border-radius: 999px;
    background: var(--bg-soft);
    color: var(--primary);
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 16px;
}
.section-header h2 {
    font-size: 32px;
    font-weight: 800;
    line-height: 1.3;
    color: var(--text-main);
    margin-bottom: 12px;
    letter-spacing: -0.5px;
}
.section-header p {
    font-size: 16px;
    color: var(--text-sub);
    line-height: 1.7;
}

/* ========== Security Overview ========== */
.overview-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 32px;
    align-items: stretch;
}
.overview-main {
    background: var(--primary-grad);
    border-radius: var(--radius-lg);
    padding: 40px;
    color: #fff;
    position: relative;
    overflow: hidden;
    min-height: 260px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.overview-main::after {
    content: '';
    position: absolute;
    right: -60px;
    bottom: -60px;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: rgba(255,255,255,0.08);
    pointer-events: none;
}
.overview-main h3 { font-size: 22px; font-weight: 700; margin-bottom: 16px; }
.overview-main p { font-size: 15px; line-height: 1.8; opacity: 0.92; max-width: 520px; }
.overview-side {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}
.overview-item {
    background: var(--bg-white);
    border-radius: var(--radius-md);
    padding: 24px;
    box-shadow: var(--shadow-card);
    transition: transform .25s, box-shadow .25s;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
}
.overview-item:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.overview-item i {
    font-size: 24px;
    color: var(--primary);
    margin-bottom: 12px;
    background: var(--bg-soft);
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.overview-item .num { font-size: 26px; font-weight: 800; color: var(--text-main); line-height: 1.2; }
.overview-item .label { font-size: 13px; color: var(--text-sub); margin-top: 4px; }

/* ========== Security Features (alternating) ========== */
.feature-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
    margin-bottom: 64px;
}
.feature-row:last-child { margin-bottom: 0; }
.feature-row.reverse .feature-media { order: 2; }
.feature-row.reverse .feature-content { order: 1; }
.feature-media {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    aspect-ratio: 4 / 3;
}
.feature-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.feature-media .media-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(14,124,114,0.18), rgba(14,124,114,0.02));
    pointer-events: none;
}
.feature-content .tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 14px;
    border-radius: 999px;
    background: var(--bg-soft);
    color: var(--primary);
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 16px;
}
.feature-content h3 { font-size: 24px; font-weight: 700; margin-bottom: 14px; line-height: 1.3; color: var(--text-main); }
.feature-content p { font-size: 15px; color: var(--text-sub); line-height: 1.8; margin-bottom: 16px; }
.feature-list { display: flex; flex-direction: column; gap: 10px; }
.feature-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 14px;
    color: var(--text-sub);
}
.feature-list li i { color: var(--primary); font-size: 14px; margin-top: 5px; flex-shrink: 0; }

/* ========== Process ========== */
.process-section { background: var(--bg-white); }
.process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 40px;
}
.process-card {
    background: var(--bg-warm);
    border-radius: var(--radius-md);
    padding: 32px 24px;
    text-align: center;
    position: relative;
    transition: transform .25s, box-shadow .25s;
}
.process-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.process-card .step-num {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--primary-grad);
    color: #fff;
    font-size: 20px;
    font-weight: 800;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}
.process-card h4 { font-size: 17px; font-weight: 700; margin-bottom: 10px; color: var(--text-main); }
.process-card p { font-size: 14px; color: var(--text-sub); line-height: 1.7; }
.process-arrow {
    position: absolute;
    top: 40px;
    right: -16px;
    color: var(--primary-light);
    font-size: 16px;
    z-index: 2;
}

/* ========== FAQ ========== */
.faq-layout {
    display: grid;
    grid-template-columns: 0.8fr 1.4fr;
    gap: 48px;
    align-items: start;
}
.faq-left .tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 14px;
    border-radius: 999px;
    background: var(--bg-soft);
    color: var(--primary);
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 16px;
}
.faq-left h2 { font-size: 30px; font-weight: 800; line-height: 1.3; margin-bottom: 14px; color: var(--text-main); }
.faq-left p { font-size: 15px; color: var(--text-sub); line-height: 1.7; }
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq-item {
    background: var(--bg-white);
    border-radius: 12px;
    border: 1px solid #E5EBE9;
    padding: 20px 24px;
    cursor: pointer;
    transition: background .25s, border-color .25s;
}
.faq-item:hover { background: var(--bg-soft); border-color: var(--primary-light); }
.faq-item.open { background: var(--bg-soft); border-color: var(--primary-light); }
.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-main);
}
.faq-icon {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--bg-soft);
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    flex-shrink: 0;
    transition: all .3s ease;
}
.faq-item.open .faq-icon {
    background: var(--primary);
    color: #fff;
    transform: rotate(45deg);
}
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height .35s ease, padding .3s ease;
    font-size: 14px;
    color: var(--text-sub);
    line-height: 1.75;
    padding: 0;
}
.faq-item.open .faq-answer { max-height: 300px; padding-top: 12px; }

/* ========== Related Nav ========== */
.related-nav { background: var(--bg-warm); }
.related-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}
.related-card {
    background: var(--bg-white);
    border-radius: var(--radius-md);
    padding: 32px;
    box-shadow: var(--shadow-card);
    display: flex;
    align-items: center;
    gap: 20px;
    transition: transform .25s, box-shadow .25s;
}
.related-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.related-card i {
    font-size: 24px;
    color: var(--primary);
    background: var(--bg-soft);
    width: 56px;
    height: 56px;
    border-radius: 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.related-card h4 { font-size: 17px; font-weight: 700; margin-bottom: 6px; color: var(--text-main); }
.related-card p { font-size: 14px; color: var(--text-sub); line-height: 1.6; }

/* ========== Footer ========== */
.site-footer { background: var(--footer-bg); color: #E8F0EE; padding: 64px 0 0; }
.site-footer .logo { color: #fff; }
.site-footer .logo-icon { background: var(--primary-grad); }
.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 0.8fr 0.8fr 1.2fr;
    gap: 40px;
    padding-bottom: 48px;
}
.footer-brand p { font-size: 14px; margin-top: 16px; line-height: 1.7; color: #B8C9C5; max-width: 280px; }
.footer-title { font-size: 15px; font-weight: 600; color: #fff; margin-bottom: 20px; }
.footer-links { display: flex; flex-direction: column; gap: 12px; }
.footer-links a { color: #B8C9C5; font-size: 14px; transition: color .2s; }
.footer-links a:hover { color: var(--accent-light); }
.footer-about { font-size: 14px; line-height: 1.75; color: #B8C9C5; }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding: 20px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    font-size: 13px;
    color: #8AA39E;
}
.footer-bottom a { color: #8AA39E; }
.footer-bottom a:hover { color: var(--accent-light); }
.footer-icp { color: #6E8782; }

/* ========== Responsive ========== */
@media (max-width: 991px) {
    .overview-grid { grid-template-columns: 1fr; }
    .feature-row { grid-template-columns: 1fr; gap: 24px; }
    .feature-row.reverse .feature-media { order: 0; }
    .feature-row.reverse .feature-content { order: 0; }
    .process-grid { grid-template-columns: repeat(2, 1fr); }
    .process-arrow { display: none; }
    .faq-layout { grid-template-columns: 1fr; gap: 32px; }
    .related-cards { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
    .category-hero { padding: 160px 0 60px; }
    .hero-title { font-size: 36px; }
}
@media (max-width: 767px) {
    .container { padding: 0 16px; }
    .section { padding: 56px 0; }
    .site-header { padding: 12px 16px 0; }
    .nav-shell { padding: 8px 12px 8px 16px; border-radius: 999px; gap: 8px; }
    .logo { font-size: 15px; gap: 8px; }
    .logo-icon { width: 30px; height: 30px; font-size: 15px; border-radius: 10px; }
    .nav-menu {
        display: none;
        position: absolute;
        top: calc(100% + 12px);
        left: 0;
        right: 0;
        background: rgba(255,255,255,0.95);
        backdrop-filter: blur(12px);
        border-radius: 16px;
        box-shadow: var(--shadow-hover);
        padding: 16px;
        flex-direction: column;
        align-items: stretch;
        gap: 8px;
        border: 1px solid rgba(255,255,255,0.6);
    }
    .nav-menu.open { display: flex; }
    .nav-menu a { padding: 12px 16px; border-radius: 12px; }
    .nav-menu a.active { background: var(--bg-soft); }
    .nav-cta .btn-sm { display: none; }
    .nav-toggle { display: block; }
    .category-hero { padding: 140px 0 48px; }
    .hero-title { font-size: 30px; }
    .hero-sub { font-size: 16px; }
    .hero-actions { flex-direction: column; }
    .hero-actions .btn { width: 100%; }
    .hero-stats { flex-direction: column; }
    .stat-card { min-width: 100%; }
    .overview-main { padding: 28px 20px; }
    .overview-side { grid-template-columns: 1fr; }
    .feature-row { gap: 20px; }
    .feature-content h3 { font-size: 20px; }
    .section-header h2 { font-size: 24px; }
    .process-grid { grid-template-columns: 1fr; }
    .faq-item { padding: 16px 18px; }
    .related-card { flex-direction: column; text-align: center; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; text-align: center; }
}
@media (max-width: 520px) {
    .nav-shell .btn-sm { display: none; }
    .overview-item { min-height: auto; }
    .stat-card { padding: 16px 20px; }
}