/* roulang page: index */
:root {
  --primary: #0E4D4D;
  --accent: #D08A3E;
  --dark-bg: #0B2E2E;
  --page-bg: #FAF7F1;
  --card-bg: #FFFFFF;
  --text-main: #1F2A33;
  --text-secondary: #5B6B72;
  --border: #E5E0D6;
  --error: #B33723;
  --success: #1E7B4A;
  --radius-card: 8px;
  --radius-btn: 4px;
  --radius-pill: 999px;
  --shadow-sm: 0 4px 20px rgba(0,0,0,0.06);
  --shadow-hover: 0 12px 30px rgba(0,0,0,0.10);
  --transition: 200ms ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  background: var(--page-bg);
  color: var(--text-main);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

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

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

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

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

button {
  font-family: inherit;
}

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

.grid-x {
  display: flex;
  flex-wrap: wrap;
}

.grid-margin-x {
  margin-left: -12px;
  margin-right: -12px;
}

.grid-margin-x > .cell {
  padding-left: 12px;
  padding-right: 12px;
}

.cell {
  flex: 0 0 auto;
}

.small-12 { width: 100%; }
.medium-6 { width: 50%; }
.large-4 { width: 33.3333%; }
.large-6 { width: 50%; }

@media (max-width: 1023px) {
  .large-4, .large-6 { width: 100%; }
  .medium-6 { width: 50%; }
}

@media (max-width: 639px) {
  .medium-6 { width: 100%; }
  .small-12 { width: 100%; }
}

.align-middle {
  align-items: center;
}

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

/* ======= Header ======= */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--page-bg);
  border-bottom: 1px solid var(--border);
}

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

.logo {
  font-size: 22px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: -0.02em;
  transition: color 200ms ease;
}

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

.main-nav ul {
  display: flex;
  gap: 34px;
}

.main-nav a {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-main);
  position: relative;
  padding: 8px 2px;
  transition: color 200ms ease;
}

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

.main-nav a.active {
  color: var(--primary);
  font-weight: 600;
}

.main-nav a.active::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 999px;
}

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

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  background: transparent;
  border: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
}

.menu-toggle .bar {
  width: 22px;
  height: 2px;
  background: var(--text-main);
  border-radius: 999px;
  transition: transform 200ms ease, opacity 200ms ease;
}

.menu-toggle.active .bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle.active .bar:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active .bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.mobile-menu {
  display: none;
  background: var(--page-bg);
  border-bottom: 1px solid var(--border);
}

.mobile-menu.open {
  display: block;
}

.mobile-menu a {
  display: block;
  line-height: 48px;
  padding: 0 24px;
  font-size: 15px;
  color: var(--text-main);
  border-bottom: 1px solid var(--border);
}

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

.mobile-menu a.active {
  color: var(--primary);
  font-weight: 600;
}

@media (max-width: 1023px) {
  .main-nav,
  .nav-cta {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }
}

/* ======= Buttons ======= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 28px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 200ms ease, color 200ms ease, transform 200ms ease, border-color 200ms ease, box-shadow 200ms ease;
}

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

.btn-primary:hover {
  background: #b8742f;
  color: #fff;
}

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

.btn-secondary {
  background: transparent;
  color: rgba(255,255,255,0.9);
  border-color: rgba(255,255,255,0.55);
}

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

.btn-large {
  min-height: 50px;
  padding: 0 40px;
  font-size: 16px;
}

.btn-block {
  width: 100%;
}

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

/* ======= Hero ======= */
.hero-section {
  position: relative;
  background: var(--dark-bg);
  color: #fff;
  padding: 100px 0 96px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  opacity: 0.28;
}

.hero-section::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(11,46,46,0.82) 0%, rgba(11,46,46,0.52) 60%, rgba(11,46,46,0.72) 100%);
}

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

.hero-title {
  font-size: 42px;
  font-weight: 600;
  line-height: 1.3;
  color: #fff;
  margin: 0 0 20px;
  max-width: 560px;
}

.hero-sub {
  font-size: 17px;
  line-height: 1.85;
  color: rgba(255,255,255,0.92);
  max-width: 520px;
  margin-bottom: 34px;
}

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

.hero-visual {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 30px 60px rgba(0,0,0,0.32);
  border: 1px solid rgba(255,255,255,0.14);
}

.hero-visual img {
  display: block;
  width: 100%;
}

@media (max-width: 1023px) {
  .hero-section {
    padding: 64px 0 56px;
  }

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

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

  .hero-visual {
    margin-top: 40px;
  }
}

@media (max-width: 639px) {
  .hero-section {
    padding: 48px 0 40px;
  }

  .hero-title {
    font-size: 28px;
  }

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

/* ======= Trust Bar ======= */
.trust-bar {
  background: var(--primary);
  color: #fff;
  padding: 44px 0;
}

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

.trust-num {
  font-size: 40px;
  font-weight: 700;
  color: #fff;
  line-height: 1.2;
}

.trust-num span {
  font-size: 22px;
  color: var(--accent);
  font-weight: 600;
}

.trust-label {
  font-size: 14px;
  color: rgba(255,255,255,0.75);
  margin-top: 6px;
}

@media (max-width: 767px) {
  .trust-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
  }

  .trust-num {
    font-size: 32px;
  }

  .trust-num span {
    font-size: 18px;
  }
}

/* ======= Industry Strip ======= */
.industry-strip {
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 22px 0;
}

.strip-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px 24px;
}

.strip-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
}

.strip-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.strip-chips li {
  padding: 6px 16px;
  background: rgba(14,77,77,0.06);
  border: 1px solid rgba(14,77,77,0.12);
  border-radius: 999px;
  font-size: 13px;
  color: var(--primary);
  font-weight: 500;
}

/* ======= Steps ======= */
.steps-section {
  padding: 80px 0;
  background: var(--page-bg);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  border-top: 1px solid var(--border);
  padding-top: 50px;
}

.step-item {
  position: relative;
  padding: 0 30px;
}

.step-item + .step-item {
  border-left: 1px solid var(--border);
}

.step-num {
  font-size: 92px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  display: block;
  margin-bottom: 22px;
}

.step-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 10px;
}

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

@media (max-width: 1023px) {
  .steps-section {
    padding: 64px 0;
  }

  .steps-grid {
    gap: 24px;
    padding-top: 32px;
  }

  .step-item {
    padding: 0 16px;
  }
}

@media (max-width: 767px) {
  .steps-section {
    padding: 48px 0;
  }

  .steps-grid {
    grid-template-columns: 1fr;
    gap: 0;
    border-top: none;
    padding-top: 0;
  }

  .step-item {
    padding: 36px 0;
    border-bottom: 1px solid var(--border);
  }

  .step-item + .step-item {
    border-left: none;
  }

  .step-item:last-child {
    border-bottom: none;
  }

  .step-num {
    font-size: 64px;
  }
}

/* ======= Cases ======= */
.cases-section {
  padding: 80px 0;
  background: #fff;
}

.case-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
  padding: 52px 0;
  border-bottom: 1px solid var(--border);
}

.case-row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.case-row.row-reverse .case-media {
  order: 2;
}

.case-media img {
  display: block;
  width: 100%;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-sm);
}

.case-content {
  padding: 10px 0;
}

.industry-tag {
  display: inline-block;
  padding: 4px 14px;
  background: rgba(14,77,77,0.08);
  color: var(--primary);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 16px;
}

.case-title {
  font-size: 24px;
  font-weight: 600;
  margin: 0 0 12px;
  color: var(--text-main);
}

.case-desc {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.85;
  margin-bottom: 24px;
}

.case-data {
  display: flex;
  gap: 48px;
}

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

.stat-num {
  font-size: 32px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.3;
}

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

@media (max-width: 1023px) {
  .cases-section {
    padding: 64px 0;
  }

  .case-row {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 36px 0;
  }

  .case-row.row-reverse .case-media {
    order: 0;
  }
}

@media (max-width: 639px) {
  .cases-section {
    padding: 48px 0;
  }

  .case-data {
    gap: 32px;
  }

  .stat-num {
    font-size: 26px;
  }
}

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

.news-grid {
  row-gap: 32px;
}

.news-item {
  display: flex;
}

.news-card {
  display: flex;
  flex-direction: column;
  width: 100%;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 200ms ease;
}

.news-card:hover {
  box-shadow: var(--shadow-hover);
}

.news-card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.badge {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(14,77,77,0.08);
  color: var(--primary);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}

.news-date {
  font-size: 13px;
  color: var(--text-secondary);
}

.news-title {
  font-size: 18px;
  font-weight: 600;
  line-height: 1.5;
  margin: 0 0 10px;
}

.news-title a {
  color: var(--text-main);
  transition: color 200ms ease;
}

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

.news-excerpt {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin: 0 0 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-more {
  margin-top: auto;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: color 200ms ease, gap 200ms ease;
}

.news-more:hover {
  color: var(--accent);
  gap: 10px;
}

.empty-state {
  background: var(--card-bg);
  border: 1px dashed var(--border);
  border-radius: var(--radius-card);
  padding: 60px 24px;
  text-align: center;
  color: var(--text-secondary);
  font-size: 15px;
}

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

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

.faq-item {
  border-bottom: 1px solid var(--border);
}

.faq-item:first-child {
  border-top: 1px solid var(--border);
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  background: transparent;
  border: none;
  padding: 24px 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  cursor: pointer;
  text-align: left;
  min-height: 44px;
  transition: color 200ms ease;
}

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

.faq-q-text {
  flex: 1;
}

.faq-icon {
  font-size: 24px;
  font-weight: 300;
  color: var(--accent);
  margin-left: 16px;
  flex-shrink: 0;
  transition: transform 200ms ease;
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 320ms ease;
}

.faq-answer-inner {
  padding: 0 0 24px;
  color: var(--text-secondary);
  line-height: 1.85;
  font-size: 15px;
}

@media (max-width: 1023px) {
  .faq-section {
    padding: 64px 0;
  }
}

@media (max-width: 639px) {
  .faq-section {
    padding: 48px 0;
  }

  .faq-question {
    font-size: 15px;
  }
}

/* ======= Apply / CTA ======= */
.apply-section {
  padding: 80px 0;
  background: var(--dark-bg);
  color: #fff;
}

.apply-box {
  max-width: 720px;
  margin: 0 auto;
}

.apply-box .section-title {
  color: #fff;
}

.apply-box .section-desc {
  color: rgba(255,255,255,0.85);
}

.apply-form {
  margin-top: 44px;
}

.apply-form .grid-x {
  row-gap: 24px;
}

.form-label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 8px;
  color: rgba(255,255,255,0.92);
}

.form-input,
.form-textarea {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--border);
  border-radius: var(--radius-btn);
  background: #fff;
  color: var(--text-main);
  padding: 12px 14px;
  font-size: 15px;
  font-family: inherit;
  transition: border-color 200ms ease, box-shadow 200ms ease;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: #9aa3a8;
}

.form-input:focus,
.form-textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(14,77,77,0.12);
  outline: none;
}

.form-textarea {
  min-height: 100px;
  resize: vertical;
}

.form-feedback {
  margin-top: 16px;
  font-size: 14px;
  text-align: center;
  padding: 12px 16px;
  border-radius: var(--radius-btn);
}

.form-feedback.success {
  color: #fff;
  background: rgba(30,123,74,0.2);
  border: 1px solid rgba(30,123,74,0.5);
}

.form-feedback.error {
  color: #fff;
  background: rgba(179,55,35,0.2);
  border: 1px solid rgba(179,55,35,0.5);
}

.privacy-note {
  margin-top: 18px;
  font-size: 13px;
  color: rgba(255,255,255,0.55);
  text-align: center;
}

@media (max-width: 1023px) {
  .apply-section {
    padding: 64px 0;
  }
}

@media (max-width: 639px) {
  .apply-section {
    padding: 48px 0;
  }
}

/* ======= Section Head ======= */
.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 52px;
}

.section-tag {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--accent);
  font-weight: 600;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.section-title {
  font-size: 32px;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.3;
  margin: 0 0 14px;
}

.section-desc {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin: 0;
}

@media (max-width: 1023px) {
  .section-title {
    font-size: 28px;
  }
}

@media (max-width: 639px) {
  .section-title {
    font-size: 24px;
  }
}

/* ======= Footer ======= */
.footer {
  background: var(--dark-bg);
  color: rgba(255,255,255,0.8);
  padding: 80px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 56px;
}

.footer h4 {
  font-size: 13px;
  font-weight: 600;
  color: #fff;
  letter-spacing: 0.06em;
  margin: 0 0 20px;
}

.footer-logo {
  font-size: 24px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.footer-about p {
  font-size: 14px;
  line-height: 1.85;
  color: rgba(255,255,255,0.7);
  max-width: 280px;
  margin: 0;
}

.footer-nav a,
.footer-cat a {
  color: rgba(255,255,255,0.75);
  font-size: 14px;
  line-height: 2.2;
  transition: color 200ms ease;
}

.footer-nav a:hover,
.footer-cat a:hover {
  color: #fff;
}

.footer-contact p {
  font-size: 14px;
  line-height: 2;
  margin: 0;
  color: rgba(255,255,255,0.75);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding: 24px 0;
  font-size: 13px;
  color: rgba(255,255,255,0.55);
  text-align: center;
}

@media (max-width: 1023px) {
  .footer {
    padding-top: 64px;
  }

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

@media (max-width: 639px) {
  .footer {
    padding-top: 48px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
}

/* ======= Focus Accessibility ======= */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* ======= Misc ======= */
.policy-anchor {
  scroll-margin-top: 90px;
}

/* roulang page: category1 */
:root {
      --primary: #0E4D4D;
      --accent: #D08A3E;
      --deep: #0B2E2E;
      --bg: #FAF7F1;
      --card: #FFFFFF;
      --text: #1F2A33;
      --muted: #5B6B72;
      --line: #E5E0D6;
      --error: #B33723;
      --success: #1E7B4A;
      --radius-card: 8px;
      --radius-btn: 4px;
      --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
      --shadow-hover: 0 12px 30px rgba(0, 0, 0, 0.10);
      --transition: 200ms ease;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", Arial, Helvetica, sans-serif;
      background: var(--bg);
      color: var(--text);
      line-height: 1.8;
      font-size: 16px;
    }

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

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

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

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

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

    /* ===== Header / Navigation ===== */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(250, 247, 241, 0.98);
      border-bottom: 1px solid var(--line);
    }

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

    .logo {
      font-size: 26px;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: -0.5px;
      line-height: 1;
    }

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

    .main-nav ul {
      display: flex;
      gap: 8px;
      flex-wrap: wrap;
    }

    .main-nav a {
      display: inline-block;
      padding: 8px 18px;
      font-size: 15px;
      font-weight: 500;
      color: var(--text);
      border-radius: 999px;
      line-height: 1.4;
      transition: all var(--transition);
      position: relative;
    }

    .main-nav a:hover {
      color: var(--primary);
      background: rgba(14, 77, 77, 0.06);
    }

    .main-nav a.active {
      color: var(--primary);
      background: rgba(14, 77, 77, 0.05);
    }

    .main-nav a.active::after {
      content: '';
      display: block;
      height: 2px;
      background: var(--accent);
      border-radius: 2px;
      margin-top: 4px;
      width: 100%;
    }

    .nav-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 22px;
      color: var(--primary);
      cursor: pointer;
      width: 44px;
      height: 44px;
      border-radius: 4px;
    }

    .nav-toggle:hover {
      background: rgba(14, 77, 77, 0.08);
    }

    /* ===== Buttons ===== */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 44px;
      padding: 0 30px;
      border-radius: var(--radius-btn);
      font-size: 15px;
      font-weight: 600;
      border: none;
      cursor: pointer;
      transition: all var(--transition);
      gap: 8px;
    }

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

    .btn-primary:hover {
      background: #b97832;
      color: #fff;
    }

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

    .btn-secondary {
      background: transparent;
      border: 1px solid rgba(255, 255, 255, 0.8);
      color: #fff;
    }

    .btn-secondary:hover {
      background: rgba(255, 255, 255, 0.12);
      color: #fff;
    }

    .btn-dark {
      background: transparent;
      border: 1px solid var(--primary);
      color: var(--primary);
    }

    .btn-dark:hover {
      background: rgba(14, 77, 77, 0.06);
      color: var(--primary);
    }

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

    /* ===== Hero ===== */
    .hero {
      background:
        linear-gradient(rgba(11, 46, 46, 0.84), rgba(11, 46, 46, 0.88)),
        url('/assets/images/backpic/back-1.png') center / cover no-repeat;
      color: #fff;
      padding: 120px 0;
    }

    .hero-inner {
      max-width: 760px;
    }

    .hero-badge {
      display: inline-block;
      background: rgba(208, 138, 62, 0.18);
      color: #F0D9B8;
      border: 1px solid rgba(208, 138, 62, 0.4);
      padding: 6px 18px;
      border-radius: 999px;
      font-size: 13px;
      font-weight: 500;
      margin-bottom: 28px;
      letter-spacing: 0.5px;
    }

    .hero h1 {
      font-size: 46px;
      font-weight: 600;
      line-height: 1.25;
      margin: 0 0 20px;
      color: #fff;
    }

    .hero p {
      font-size: 18px;
      line-height: 1.9;
      color: rgba(255, 255, 255, 0.88);
      max-width: 560px;
      margin: 0 0 0;
    }

    .hero-actions {
      display: flex;
      gap: 16px;
      margin-top: 38px;
      flex-wrap: wrap;
    }

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

    .section-white {
      background: var(--card);
    }

    .section-label {
      font-size: 13px;
      font-weight: 700;
      letter-spacing: 1px;
      color: var(--accent);
      margin-bottom: 10px;
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }

    .section-label::before {
      content: '';
      width: 20px;
      height: 2px;
      background: var(--accent);
      border-radius: 2px;
    }

    .section-title {
      font-size: 32px;
      font-weight: 600;
      line-height: 1.3;
      margin: 0 0 16px;
      color: var(--text);
    }

    .section-desc {
      font-size: 16px;
      color: var(--muted);
      max-width: 720px;
      line-height: 1.85;
      margin-bottom: 44px;
    }

    /* ===== Service alt rows ===== */
    .alt-row {
      display: flex;
      align-items: center;
      gap: 64px;
      margin-bottom: 64px;
    }

    .alt-row:last-child {
      margin-bottom: 0;
    }

    .alt-row:nth-child(even) {
      flex-direction: row-reverse;
    }

    .alt-text {
      flex: 1;
    }

    .alt-text h3 {
      font-size: 24px;
      font-weight: 600;
      margin: 0 0 16px;
      color: var(--text);
      line-height: 1.4;
    }

    .alt-text p {
      font-size: 15px;
      color: var(--muted);
      line-height: 2;
      margin: 0;
    }

    .alt-img {
      flex: 1;
    }

    .alt-img img {
      width: 100%;
      height: 300px;
      object-fit: cover;
      border-radius: var(--radius-card);
      box-shadow: var(--shadow);
      transition: box-shadow var(--transition), transform var(--transition);
    }

    .alt-img img:hover {
      box-shadow: var(--shadow-hover);
    }

    /* ===== Metrics ===== */
    .metrics-section {
      background: var(--deep);
      color: #fff;
      padding: 80px 0;
    }

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

    .metrics-section .section-desc {
      color: rgba(255, 255, 255, 0.7);
    }

    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 28px;
    }

    .metric-item {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-card);
      padding: 36px 24px;
      text-align: center;
      transition: background var(--transition), border-color var(--transition);
    }

    .metric-item:hover {
      background: rgba(255, 255, 255, 0.08);
      border-color: rgba(208, 138, 62, 0.4);
    }

    .metric-num {
      font-size: 44px;
      font-weight: 700;
      color: var(--accent);
      line-height: 1.2;
      font-family: Arial, Helvetica, sans-serif;
    }

    .metric-note {
      font-size: 14px;
      color: rgba(255, 255, 255, 0.72);
      margin-top: 10px;
    }

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

    .scenario-card {
      background: var(--card);
      border: 1px solid var(--line);
      border-radius: var(--radius-card);
      padding: 36px 28px;
      box-shadow: var(--shadow);
      transition: box-shadow var(--transition), border-color var(--transition);
    }

    .scenario-card:hover {
      box-shadow: var(--shadow-hover);
      border-color: rgba(14, 77, 77, 0.15);
    }

    .scenario-icon {
      width: 54px;
      height: 54px;
      border-radius: 8px;
      background: rgba(14, 77, 77, 0.08);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 24px;
      color: var(--primary);
      margin-bottom: 22px;
    }

    .scenario-card h3 {
      font-size: 20px;
      font-weight: 600;
      margin: 0 0 12px;
      color: var(--text);
    }

    .scenario-card p {
      font-size: 14px;
      color: var(--muted);
      line-height: 1.9;
      margin: 0;
    }

    /* ===== Process ===== */
    .process-section {
      background: var(--card);
    }

    .process-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 0;
      border-top: 1px solid var(--line);
      border-bottom: 1px solid var(--line);
    }

    .process-item {
      padding: 40px 28px 36px;
      position: relative;
      border-right: 1px solid var(--line);
      transition: background var(--transition);
    }

    .process-item:last-child {
      border-right: none;
    }

    .process-item:hover {
      background: rgba(14, 77, 77, 0.02);
    }

    .process-num {
      font-size: 56px;
      font-weight: 700;
      color: var(--accent);
      opacity: 0.18;
      line-height: 1;
      font-family: Arial, Helvetica, sans-serif;
      margin-bottom: 14px;
    }

    .process-item h3 {
      font-size: 19px;
      font-weight: 600;
      margin: 0 0 10px;
      color: var(--text);
    }

    .process-item p {
      font-size: 14px;
      color: var(--muted);
      line-height: 1.8;
      margin: 0;
    }

    /* ===== FAQ ===== */
    .faq-wrap {
      max-width: 780px;
      margin: 0 auto;
    }

    .faq-item {
      border-bottom: 1px solid var(--line);
    }

    .faq-item:first-child {
      border-top: 1px solid var(--line);
    }

    .faq-button {
      display: flex;
      justify-content: space-between;
      align-items: center;
      width: 100%;
      background: none;
      border: none;
      padding: 24px 0;
      font-size: 17px;
      font-weight: 500;
      color: var(--text);
      cursor: pointer;
      text-align: left;
      min-height: 44px;
      transition: color var(--transition);
    }

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

    .faq-button:focus-visible {
      outline: 2px solid var(--accent);
      outline-offset: 2px;
      border-radius: 4px;
    }

    .faq-icon {
      flex-shrink: 0;
      width: 28px;
      height: 28px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 22px;
      color: var(--accent);
      transition: transform 0.3s ease;
      border-radius: 50%;
      background: rgba(208, 138, 62, 0.1);
    }

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

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

    .faq-item.is-active .faq-content {
      max-height: 300px;
      padding-bottom: 24px;
    }

    .faq-content p {
      font-size: 15px;
      color: var(--muted);
      line-height: 1.95;
      margin: 0;
    }

    /* ===== CTA ===== */
    .cta-section {
      background:
        linear-gradient(rgba(11, 46, 46, 0.92), rgba(11, 46, 46, 0.94)),
        url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
      padding: 80px 0;
      color: #fff;
    }

    .cta-inner {
      max-width: 720px;
      margin: 0 auto;
    }

    .cta-section .section-title {
      color: #fff;
      text-align: center;
      margin-bottom: 12px;
    }

    .cta-section .section-desc {
      color: rgba(255, 255, 255, 0.75);
      margin: 0 auto 40px;
      text-align: center;
    }

    .cta-form {
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius-card);
      padding: 36px;
    }

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

    .form-field label {
      display: block;
      font-size: 14px;
      color: rgba(255, 255, 255, 0.85);
      margin-bottom: 6px;
      font-weight: 500;
    }

    .form-field input,
    .form-field textarea {
      width: 100%;
      height: 44px;
      border: 1px solid rgba(255, 255, 255, 0.3);
      background: rgba(255, 255, 255, 0.08);
      color: #fff;
      border-radius: var(--radius-btn);
      padding: 0 14px;
      font-size: 15px;
      transition: border-color var(--transition), box-shadow var(--transition);
    }

    .form-field textarea {
      height: auto;
      padding: 12px 14px;
      resize: vertical;
      min-height: 90px;
    }

    .form-field input::placeholder,
    .form-field textarea::placeholder {
      color: rgba(255, 255, 255, 0.45);
    }

    .form-field input:focus,
    .form-field textarea:focus {
      outline: none;
      border-color: var(--accent);
      box-shadow: 0 0 0 2px rgba(208, 138, 62, 0.25);
    }

    .form-full {
      grid-column: span 2;
    }

    .form-submit {
      grid-column: span 2;
      display: flex;
      justify-content: center;
      margin-top: 8px;
    }

    .privacy-note {
      font-size: 13px;
      color: rgba(255, 255, 255, 0.55);
      margin-top: 16px;
      text-align: center;
    }

    /* ===== Footer ===== */
    .footer {
      background: var(--deep);
      color: rgba(255, 255, 255, 0.72);
      padding: 64px 0 0;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.2fr;
      gap: 40px;
    }

    .footer-logo {
      font-size: 24px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 18px;
      line-height: 1.2;
    }

    .footer-about p {
      font-size: 14px;
      line-height: 1.9;
      max-width: 320px;
      margin: 0;
      color: rgba(255, 255, 255, 0.65);
    }

    .footer h4 {
      font-size: 13px;
      font-weight: 600;
      letter-spacing: 1px;
      text-transform: uppercase;
      color: rgba(255, 255, 255, 0.45);
      margin-bottom: 18px;
    }

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

    .footer ul a {
      color: rgba(255, 255, 255, 0.72);
      font-size: 14px;
      transition: color var(--transition);
    }

    .footer ul a:hover {
      color: #fff;
    }

    .footer-contact p {
      font-size: 14px;
      margin-bottom: 10px;
      color: rgba(255, 255, 255, 0.65);
      line-height: 1.7;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.12);
      margin-top: 48px;
      padding: 22px 0;
      font-size: 13px;
      color: rgba(255, 255, 255, 0.45);
      text-align: center;
    }

    /* ===== Responsive 1024 ===== */
    @media (max-width: 1024px) {
      .section {
        padding: 64px 0;
      }

      .hero {
        padding: 90px 0;
      }

      .hero h1 {
        font-size: 40px;
      }

      .alt-row {
        gap: 36px;
      }

      .alt-img img {
        height: 250px;
      }

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

      .process-grid {
        grid-template-columns: repeat(2, 1fr);
        border-bottom: none;
      }

      .process-item {
        border-right: none;
        border-bottom: 1px solid var(--line);
      }

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

    /* ===== Responsive 900 ===== */
    @media (max-width: 900px) {
      .nav-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
      }

      .main-nav {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--bg);
        border-bottom: 1px solid var(--line);
        padding: 12px 24px;
        box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
      }

      .main-nav.is-open {
        display: block;
      }

      .main-nav ul {
        flex-direction: column;
        gap: 0;
      }

      .main-nav a {
        display: block;
        padding: 12px 0;
        border-radius: 0;
        font-size: 16px;
        border-bottom: 1px solid var(--line);
      }

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

      .main-nav a.active {
        background: transparent;
        color: var(--primary);
      }

      .main-nav a.active::after {
        content: '';
        display: inline-block;
        width: 6px;
        height: 6px;
        background: var(--accent);
        border-radius: 50%;
        margin-left: 10px;
      }

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

    /* ===== Responsive 768 ===== */
    @media (max-width: 768px) {
      .hero {
        padding: 72px 0;
      }

      .hero h1 {
        font-size: 34px;
      }

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

      .alt-row,
      .alt-row:nth-child(even) {
        flex-direction: column;
        gap: 24px;
      }

      .alt-img img {
        height: 220px;
      }

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

      .section-title {
        font-size: 28px;
      }

      .cta-form {
        padding: 28px 22px;
      }

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

      .form-full,
      .form-submit {
        grid-column: span 1;
      }
    }

    /* ===== Responsive 520 ===== */
    @media (max-width: 520px) {
      .container {
        padding-left: 18px;
        padding-right: 18px;
      }

      .logo {
        font-size: 22px;
      }

      .hero {
        padding: 56px 0;
      }

      .hero h1 {
        font-size: 29px;
      }

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

      .hero-actions {
        flex-direction: column;
        width: 100%;
      }

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

      .section {
        padding: 48px 0;
      }

      .section-title {
        font-size: 24px;
      }

      .section-desc {
        font-size: 15px;
      }

      .metrics-grid {
        grid-template-columns: 1fr;
        gap: 16px;
      }

      .metric-item {
        padding: 28px 20px;
      }

      .metric-num {
        font-size: 36px;
      }

      .alt-text h3 {
        font-size: 21px;
      }

      .scenario-card {
        padding: 28px 22px;
      }

      .process-item {
        padding: 28px 20px;
      }

      .process-num {
        font-size: 44px;
      }

      .faq-button {
        font-size: 16px;
        padding: 20px 0;
      }

      .faq-item.is-active .faq-content {
        padding-bottom: 20px;
      }

      .faq-content p {
        font-size: 14px;
      }

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

      .cta-form {
        padding: 24px 18px;
      }

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

      .footer-bottom {
        font-size: 12px;
      }
    }

/* roulang page: article */
:root{
  --primary:#0E4D4D;
  --accent:#D08A3E;
  --dark:#0B2E2E;
  --bg:#FAF7F1;
  --card:#FFFFFF;
  --text:#1F2A33;
  --text-light:#5B6B72;
  --border:#E5E0D6;
  --error:#B33723;
  --success:#1E7B4A;
  --radius:8px;
  --radius-sm:4px;
  --radius-lg:999px;
  --shadow:0 4px 20px rgba(0,0,0,0.06);
  --shadow-hover:0 12px 30px rgba(0,0,0,0.10);
  --transition:all 0.25s ease;
  --font-main:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --container:1200px;
  --content-max:720px;
  --header-height:72px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:var(--font-main);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--radius);}
a{color:inherit;text-decoration:none;transition:var(--transition);}
button,input,textarea,select{font-family:inherit;font-size:inherit;outline:none;}
ul,ol{list-style:none;}
.container{
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.site-header{
  position:sticky;
  top:0;
  z-index:120;
  height:var(--header-height);
  background:var(--bg);
  border-bottom:1px solid var(--border);
}
.header-inner{
  height:var(--header-height);
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.logo{
  font-size:20px;
  font-weight:700;
  letter-spacing:-0.01em;
  color:var(--primary);
  line-height:1;
}
.logo-dot{
  display:inline-block;
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--accent);
  margin-left:2px;
  vertical-align:2px;
}
.main-nav ul{
  display:flex;
  align-items:center;
  gap:6px;
}
.main-nav a{
  display:inline-block;
  font-size:14px;
  font-weight:500;
  color:var(--text);
  padding:10px 14px;
  border-radius:var(--radius-sm);
  position:relative;
  line-height:1.4;
}
.main-nav a:hover{
  color:var(--primary);
  background:rgba(14,77,77,0.04);
}
.main-nav a.active{
  color:var(--primary);
  font-weight:600;
}
.main-nav a.active::after{
  content:"";
  position:absolute;
  left:14px;
  right:14px;
  bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--accent);
}
.header-cta{
  flex-shrink:0;
}
.btn-primary{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:44px;
  padding:10px 24px;
  background:var(--accent);
  color:#FFFFFF;
  border-radius:var(--radius-sm);
  font-size:14px;
  font-weight:600;
  border:none;
  cursor:pointer;
  transition:var(--transition);
  line-height:1.4;
  text-align:center;
}
.btn-primary:hover{
  background:#b9742e;
  transform:translateY(-1px);
  box-shadow:0 6px 18px rgba(208,138,62,0.25);
}
.btn-primary:active{
  transform:translateY(0);
  box-shadow:none;
}
.btn-primary:focus-visible{
  outline:3px solid rgba(208,138,62,0.35);
  outline-offset:2px;
}
.btn-secondary{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:44px;
  padding:10px 24px;
  background:transparent;
  color:var(--primary);
  border:1px solid rgba(14,77,77,0.4);
  border-radius:var(--radius-sm);
  font-size:14px;
  font-weight:500;
  cursor:pointer;
  transition:var(--transition);
}
.btn-secondary:hover{
  background:rgba(14,77,77,0.06);
  border-color:var(--primary);
}
.menu-toggle{
  display:none;
  background:none;
  border:none;
  width:44px;
  height:44px;
  align-items:center;
  justify-content:center;
  font-size:20px;
  color:var(--text);
  border-radius:var(--radius-sm);
  transition:var(--transition);
}
.menu-toggle:hover{
  background:rgba(14,77,77,0.06);
  color:var(--primary);
}
.article-hero{
  padding:44px 0 20px;
  background:var(--bg);
}
.breadcrumb{
  font-size:13px;
  color:var(--text-light);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  margin-bottom:20px;
}
.breadcrumb a{
  color:var(--text-light);
  transition:var(--transition);
}
.breadcrumb a:hover{
  color:var(--primary);
}
.breadcrumb .sep{
  color:var(--border);
  font-size:12px;
}
.breadcrumb .current{
  color:var(--text);
  max-width:360px;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.article-title{
  font-size:clamp(28px,4.5vw,42px);
  font-weight:700;
  line-height:1.35;
  color:var(--text);
  letter-spacing:-0.01em;
  max-width:820px;
  margin-bottom:18px;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  gap:14px 24px;
  align-items:center;
  font-size:14px;
  color:var(--text-light);
}
.article-meta span{
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.article-meta i{
  color:var(--accent);
  font-size:13px;
}
.meta-tag-list{
  display:inline-flex;
  flex-wrap:wrap;
  gap:8px;
}
.tag-badge{
  display:inline-block;
  font-size:12px;
  line-height:1;
  padding:6px 12px;
  border-radius:var(--radius-lg);
  background:rgba(14,77,77,0.08);
  color:var(--primary);
  font-weight:500;
}
.article-feature{
  padding:8px 0 40px;
}
.article-feature .container{
  max-width:1000px;
}
.feature-img{
  width:100%;
  max-height:480px;
  object-fit:cover;
  border-radius:var(--radius);
  box-shadow:var(--shadow);
}
.article-main{
  padding:16px 0 56px;
}
.article-body-wrap{
  max-width:740px;
  margin:0 auto;
}
.article-body{
  font-size:16px;
  line-height:1.95;
  color:var(--text);
  word-break:break-word;
}
.article-body>p{
  margin:0 0 1.5em;
}
.article-body h2{
  font-size:26px;
  font-weight:600;
  line-height:1.4;
  margin:44px 0 18px;
  padding-bottom:12px;
  border-bottom:1px solid var(--border);
  color:var(--text);
}
.article-body h3{
  font-size:20px;
  font-weight:600;
  line-height:1.45;
  margin:34px 0 12px;
  color:var(--text);
}
.article-body h4{
  font-size:17px;
  font-weight:600;
  margin:26px 0 10px;
  color:var(--text);
}
.article-body blockquote{
  border-left:3px solid var(--accent);
  background:rgba(208,138,62,0.06);
  padding:18px 24px;
  margin:24px 0;
  color:var(--text-light);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  font-size:15px;
  line-height:1.8;
}
.article-body ul,
.article-body ol{
  margin:0 0 1.6em;
  padding-left:24px;
}
.article-body ul li{
  list-style:disc;
  margin-bottom:8px;
}
.article-body ol li{
  list-style:decimal;
  margin-bottom:8px;
}
.article-body img{
  max-width:100%;
  border-radius:var(--radius);
  margin:24px auto;
}
.article-body figure{
  margin:28px 0;
  text-align:center;
}
.article-body figure img{
  margin:0 auto 8px;
}
.article-body figcaption{
  font-size:13px;
  color:var(--text-light);
  line-height:1.6;
}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:24px 0;
  font-size:14px;
}
.article-body table th,
.article-body table td{
  border:1px solid var(--border);
  padding:10px 14px;
  text-align:left;
}
.article-body table th{
  background:rgba(14,77,77,0.04);
  font-weight:600;
  color:var(--primary);
}
.article-body a{
  color:var(--primary);
  border-bottom:1px solid rgba(14,77,77,0.3);
  font-weight:500;
}
.article-body a:hover{
  color:var(--accent);
  border-bottom-color:var(--accent);
}
.article-body code{
  background:rgba(14,77,77,0.06);
  padding:2px 6px;
  border-radius:4px;
  font-size:14px;
  color:var(--primary);
}
.article-nav-links{
  max-width:740px;
  margin:0 auto;
  padding:36px 0 16px;
  display:flex;
  flex-wrap:wrap;
  gap:16px;
  align-items:center;
  justify-content:space-between;
  border-top:1px solid var(--border);
}
.back-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--primary);
  font-size:14px;
  font-weight:500;
  padding:10px 0;
  line-height:1.4;
}
.back-link:hover{
  color:var(--accent);
}
.article-not-found{
  max-width:560px;
  margin:40px auto;
  text-align:center;
  padding:56px 32px;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
}
.not-found-icon{
  font-size:42px;
  color:var(--border);
  margin-bottom:16px;
}
.article-not-found h2{
  font-size:22px;
  font-weight:600;
  color:var(--text);
  margin-bottom:8px;
}
.article-not-found p{
  font-size:14px;
  color:var(--text-light);
  margin-bottom:24px;
}
.related-posts{
  max-width:1000px;
  margin:0 auto;
  padding:48px 0 8px;
}
.related-posts .section-label{
  font-size:13px;
  color:var(--text-light);
  font-weight:500;
  letter-spacing:0.04em;
  text-transform:uppercase;
  margin-bottom:8px;
}
.related-posts h2{
  font-size:26px;
  font-weight:600;
  color:var(--text);
  margin-bottom:24px;
}
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}
.related-card{
  display:flex;
  flex-direction:column;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:22px;
  transition:var(--transition);
}
.related-card:hover{
  box-shadow:var(--shadow-hover);
  border-color:rgba(14,77,77,0.2);
  transform:translateY(-2px);
}
.related-card h3{
  font-size:15px;
  font-weight:600;
  line-height:1.55;
  color:var(--text);
  margin-bottom:8px;
}
.related-card p{
  font-size:13px;
  color:var(--text-light);
  line-height:1.7;
  flex:1;
}
.related-card .related-more{
  font-size:13px;
  color:var(--accent);
  font-weight:500;
  margin-top:12px;
}
.cta-section{
  background:var(--dark);
  padding:72px 0;
  color:#FFFFFF;
}
.cta-inner{
  max-width:680px;
  margin:0 auto;
  text-align:center;
}
.cta-inner .cta-label{
  font-size:13px;
  letter-spacing:0.08em;
  color:rgba(255,255,255,0.6);
  font-weight:500;
  margin-bottom:12px;
  text-transform:uppercase;
}
.cta-inner h2{
  font-size:clamp(24px,3.5vw,32px);
  font-weight:600;
  line-height:1.4;
  margin-bottom:16px;
}
.cta-inner p{
  font-size:15px;
  color:rgba(255,255,255,0.75);
  line-height:1.8;
  margin-bottom:28px;
}
.cta-buttons{
  display:flex;
  gap:12px;
  justify-content:center;
  flex-wrap:wrap;
}
.cta-buttons .btn-primary{
  background:var(--accent);
  color:#FFFFFF;
}
.cta-buttons .btn-primary:hover{
  background:#c07a32;
}
.cta-buttons .btn-secondary{
  border-color:rgba(255,255,255,0.35);
  color:#FFFFFF;
}
.cta-buttons .btn-secondary:hover{
  background:rgba(255,255,255,0.08);
  border-color:#FFFFFF;
}
.footer{
  background:var(--dark);
  color:rgba(255,255,255,0.85);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.1fr;
  gap:40px;
  padding-bottom:44px;
  border-bottom:1px solid rgba(255,255,255,0.08);
}
.footer-logo{
  font-size:20px;
  font-weight:700;
  color:#FFFFFF;
  margin-bottom:14px;
  line-height:1.2;
}
.footer-about p{
  font-size:14px;
  line-height:1.8;
  color:rgba(255,255,255,0.7);
  max-width:300px;
}
.footer h4{
  font-size:13px;
  font-weight:600;
  color:rgba(255,255,255,0.55);
  margin-bottom:14px;
  letter-spacing:0.04em;
}
.footer ul li{
  margin-bottom:6px;
}
.footer ul a{
  font-size:14px;
  color:rgba(255,255,255,0.8);
  transition:var(--transition);
  display:inline-block;
  padding:3px 0;
}
.footer ul a:hover{
  color:#FFFFFF;
}
.footer-contact p{
  font-size:14px;
  line-height:1.9;
  color:rgba(255,255,255,0.75);
}
.footer-bottom{
  padding:22px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:rgba(255,255,255,0.45);
}
.footer-bottom a{
  color:rgba(255,255,255,0.6);
}
.footer-bottom a:hover{
  color:#FFFFFF;
}
@media(max-width:1024px){
  .container{
    padding:0 20px;
  }
  .footer-grid{
    grid-template-columns:1fr 1fr;
    gap:32px;
  }
  .related-grid{
    grid-template-columns:repeat(3,1fr);
  }
}
@media(max-width:768px){
  .menu-toggle{
    display:inline-flex;
  }
  .header-inner{
    position:relative;
  }
  .main-nav{
    display:none;
    position:absolute;
    top:100%;
    left:0;
    right:0;
    background:var(--bg);
    border-bottom:1px solid var(--border);
    padding:8px 20px 16px;
    box-shadow:var(--shadow);
    max-height:calc(100vh - var(--header-height));
    overflow-y:auto;
  }
  .main-nav.open{
    display:block;
  }
  .main-nav ul{
    flex-direction:column;
    align-items:stretch;
    gap:0;
  }
  .main-nav a{
    display:block;
    padding:14px 4px;
    border-bottom:1px solid var(--border);
    font-size:15px;
    border-radius:0;
  }
  .main-nav a:last-child{
    border-bottom:none;
  }
  .main-nav a.active::after{
    display:none;
  }
  .main-nav a.active{
    color:var(--primary);
  }
  .header-cta{
    display:none;
  }
  .article-hero{
    padding:32px 0 16px;
  }
  .article-title{
    font-size:28px;
  }
  .article-meta{
    gap:10px 16px;
  }
  .related-grid{
    grid-template-columns:1fr;
  }
  .cta-section{
    padding:56px 0;
  }
  .cta-buttons{
    flex-direction:column;
    align-items:center;
  }
  .cta-buttons .btn-primary,
  .cta-buttons .btn-secondary{
    width:100%;
    max-width:320px;
  }
}
@media(max-width:520px){
  .container{
    padding:0 16px;
  }
  .footer-grid{
    grid-template-columns:1fr;
    gap:28px;
  }
  .article-title{
    font-size:24px;
    line-height:1.4;
  }
  .breadcrumb .current{
    max-width:200px;
  }
  .footer-bottom{
    flex-direction:column;
    text-align:center;
  }
}

/* roulang page: category3 */
:root{
  --primary:#0E4D4D;
  --primary-dark:#0B2E2E;
  --accent:#D08A3E;
  --accent-hover:#B9782F;
  --bg:#FAF7F1;
  --card:#FFFFFF;
  --text:#1F2A33;
  --text-sub:#5B6B72;
  --line:#E5E0D6;
  --danger:#B33723;
  --success:#1E7B4A;
  --radius:8px;
  --radius-sm:4px;
  --shadow:0 4px 20px rgba(0,0,0,0.06);
  --shadow-hover:0 12px 30px rgba(0,0,0,0.10);
  --space-desktop:80px;
  --space-tablet:64px;
  --space-mobile:48px;
  --transition:all 200ms ease;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.8;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:var(--transition)}
button{font-family:inherit;cursor:pointer}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:var(--space-desktop) 0}
.section-sub{padding:64px 0}

/* Header & Nav */
.site-header{
  background:var(--bg);
  border-bottom:1px solid var(--line);
  height:72px;
  display:flex;
  align-items:center;
  position:sticky;
  top:0;
  z-index:100;
}
.site-header .header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.logo{
  font-size:26px;
  font-weight:700;
  color:var(--primary);
  letter-spacing:0.5px;
  display:flex;
  align-items:center;
  gap:8px;
  flex-shrink:0;
}
.logo::before{
  content:'';
  width:8px;
  height:8px;
  background:var(--accent);
  border-radius:50%;
  display:inline-block;
}
.main-nav ul{
  list-style:none;
  display:flex;
  gap:36px;
  margin:0;
  padding:0;
}
.main-nav a{
  font-size:15px;
  font-weight:500;
  color:var(--text);
  padding:8px 0;
  position:relative;
  line-height:1.4;
}
.main-nav a::after{
  content:'';
  position:absolute;
  left:0;
  bottom:0;
  width:0;
  height:2px;
  background:var(--accent);
  transition:var(--transition);
}
.main-nav a:hover{color:var(--primary)}
.main-nav a:hover::after{width:100%}
.main-nav a.active{color:var(--primary)}
.main-nav a.active::after{width:100%}
.nav-toggle{display:none;background:none;border:none;font-size:24px;color:var(--primary);padding:10px}
.mobile-menu{
  display:none;
  position:fixed;
  top:72px;
  left:0;
  right:0;
  background:var(--bg);
  border-bottom:1px solid var(--line);
  padding:16px 24px 24px;
  z-index:99;
  box-shadow:0 8px 20px rgba(0,0,0,0.06);
}
.mobile-menu.open{display:block}
.mobile-menu ul{list-style:none}
.mobile-menu li{border-bottom:1px solid var(--line)}
.mobile-menu li:last-child{border-bottom:none}
.mobile-menu a{
  display:block;
  padding:12px 0;
  font-size:16px;
  font-weight:500;
  color:var(--text);
}
.mobile-menu a.active{color:var(--primary);font-weight:600;padding-left:12px;border-left:3px solid var(--accent)}

/* Hero */
.hero{
  position:relative;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  background-color:var(--primary-dark);
  color:#fff;
  padding:120px 0;
}
.hero::before{
  content:'';
  position:absolute;
  inset:0;
  background:rgba(11,46,46,0.82);
}
.hero .container{position:relative;z-index:2}
.hero .hero-inner{
  max-width:780px;
}
.hero .hero-kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  background:rgba(208,138,62,0.18);
  border:1px solid rgba(208,138,62,0.5);
  color:#F0D3A8;
  padding:6px 16px;
  border-radius:999px;
  margin-bottom:24px;
}
.hero h1{
  font-size:44px;
  font-weight:600;
  line-height:1.3;
  margin-bottom:20px;
  color:#fff;
  letter-spacing:1px;
}
.hero h1 span{color:var(--accent)}
.hero .hero-sub{
  font-size:17px;
  line-height:2;
  color:rgba(255,255,255,0.88);
  max-width:680px;
  margin-bottom:36px;
}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 28px;
  border-radius:4px;
  font-size:15px;
  font-weight:500;
  border:1px solid transparent;
  transition:var(--transition);
  line-height:1;
}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-hover);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px)}
.btn-outline{background:transparent;border-color:rgba(255,255,255,0.7);color:#fff}
.btn-outline:hover{background:rgba(255,255,255,0.1);border-color:#fff}
.btn-dark{background:var(--primary);color:#fff}
.btn-dark:hover{background:var(--primary-dark)}

/* Lead block */
.lead-block{
  max-width:900px;
  margin:0 auto 64px;
  text-align:center;
}
.lead-block .lead-text{
  font-size:26px;
  line-height:1.7;
  font-weight:500;
  color:var(--text);
  letter-spacing:0.5px;
}
.lead-block .lead-text em{
  font-style:normal;
  color:var(--accent);
}
.lead-block .lead-desc{
  margin-top:16px;
  color:var(--text-sub);
  font-size:16px;
  line-height:2;
}

/* Card grid for services */
.services-section{background:var(--bg)}
.section-header{
  text-align:center;
  margin-bottom:56px;
}
.section-header .sec-label{
  display:inline-block;
  font-size:13px;
  color:var(--accent);
  letter-spacing:2px;
  margin-bottom:12px;
  font-weight:600;
}
.section-header h2{
  font-size:34px;
  line-height:1.4;
  color:var(--text);
  font-weight:600;
}
.section-header p{
  max-width:600px;
  margin:16px auto 0;
  color:var(--text-sub);
  font-size:15px;
}
.service-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.service-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:36px 28px;
  box-shadow:var(--shadow);
  transition:var(--transition);
}
.service-card:hover{
  box-shadow:var(--shadow-hover);
  transform:translateY(-4px);
  border-color:rgba(14,77,77,0.25);
}
.service-card .icon-wrap{
  width:52px;
  height:52px;
  border-radius:12px;
  background:rgba(14,77,77,0.08);
  display:flex;
  align-items:center;
  justify-content:center;
  margin-bottom:20px;
  color:var(--primary);
  font-size:22px;
}
.service-card h3{
  font-size:20px;
  font-weight:600;
  margin-bottom:12px;
  color:var(--text);
}
.service-card p{
  font-size:15px;
  color:var(--text-sub);
  line-height:1.9;
}

/* Use case section with image */
.case-section{background:var(--card)}
.case-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
}
.case-image{
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow);
}
.case-image img{width:100%;height:360px;object-fit:cover}
.case-copy h2{
  font-size:30px;
  line-height:1.4;
  margin-bottom:20px;
  font-weight:600;
}
.case-copy p{
  color:var(--text-sub);
  line-height:2;
  margin-bottom:16px;
  font-size:15px;
}
.case-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}
.case-tags span{
  font-size:13px;
  background:rgba(14,77,77,0.08);
  color:var(--primary);
  padding:4px 14px;
  border-radius:999px;
  font-weight:500;
}

/* Metrics / numbers */
.metrics-section{background:var(--primary-dark);color:#fff;padding:64px 0}
.metrics-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:32px;
  text-align:center;
}
.metric-item .num{
  font-size:40px;
  font-weight:700;
  color:var(--accent);
  line-height:1.2;
}
.metric-item .label{
  font-size:14px;
  color:rgba(255,255,255,0.75);
  margin-top:8px;
}
.metric-item .desc{
  font-size:13px;
  color:rgba(255,255,255,0.55);
  margin-top:4px;
}

/* Process steps */
.process-section{background:var(--bg)}
.process-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  margin-top:16px;
}
.process-item{
  position:relative;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:32px 24px;
  box-shadow:var(--shadow);
}
.process-item .step-num{
  font-size:13px;
  font-weight:700;
  color:var(--accent);
  margin-bottom:12px;
  display:block;
  letter-spacing:1px;
}
.process-item h3{font-size:18px;font-weight:600;margin-bottom:10px}
.process-item p{font-size:14px;color:var(--text-sub);line-height:1.8}
.process-item::before{
  content:'';
  position:absolute;
  top:32px;
  right:-12px;
  width:24px;
  height:1px;
  background:var(--line);
}
.process-item:last-child::before{display:none}

/* FAQ */
.faq-section{background:var(--card)}
.faq-list{max-width:800px;margin:0 auto}
.faq-item{
  border-bottom:1px solid var(--line);
}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-question{
  width:100%;
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:22px 0;
  background:none;
  border:none;
  font-size:17px;
  font-weight:500;
  color:var(--text);
  text-align:left;
  transition:var(--transition);
}
.faq-question:hover{color:var(--primary)}
.faq-question .icon{
  font-size:22px;
  color:var(--accent);
  transition:var(--transition);
  flex-shrink:0;
  margin-left:16px;
}
.faq-item.open .faq-question .icon{transform:rotate(45deg)}
.faq-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height 300ms ease;
}
.faq-answer-inner{
  padding:0 0 20px;
  color:var(--text-sub);
  line-height:2;
  font-size:15px;
}

/* CTA */
.cta-section{
  background:var(--primary);
  padding:80px 0;
  position:relative;
}
.cta-section::before{
  content:'';
  position:absolute;
  inset:0;
  background:url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  opacity:0.12;
}
.cta-inner{
  position:relative;
  z-index:2;
  max-width:720px;
  margin:0 auto;
  text-align:center;
  color:#fff;
}
.cta-inner h2{
  font-size:30px;
  margin-bottom:16px;
  font-weight:600;
}
.cta-inner p{
  font-size:16px;
  color:rgba(255,255,255,0.8);
  margin-bottom:32px;
  line-height:1.9;
}
.cta-form{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
  text-align:left;
}
.form-group{display:flex;flex-direction:column}
.form-group label{
  font-size:14px;
  font-weight:500;
  margin-bottom:6px;
  color:rgba(255,255,255,0.9);
}
.form-group input,
.form-group textarea{
  width:100%;
  min-height:44px;
  border:1px solid rgba(255,255,255,0.3);
  background:rgba(255,255,255,0.08);
  color:#fff;
  border-radius:4px;
  padding:10px 14px;
  font-family:inherit;
  font-size:15px;
  transition:var(--transition);
}
.form-group textarea{min-height:100px;resize:vertical}
.form-group input::placeholder,
.form-group textarea::placeholder{color:rgba(255,255,255,0.4)}
.form-group input:focus,
.form-group textarea:focus{
  outline:none;
  border-color:var(--accent);
  box-shadow:0 0 0 2px rgba(208,138,62,0.25);
}
.form-full{grid-column:span 2}
.form-submit{grid-column:span 2}
.form-submit .btn{width:100%}
.privacy-note{
  grid-column:span 2;
  font-size:13px;
  color:rgba(255,255,255,0.5);
  text-align:center;
  margin-top:4px;
}

/* Footer */
.footer{
  background:var(--primary-dark);
  color:rgba(255,255,255,0.7);
  padding:64px 0 24px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  margin-bottom:48px;
}
.footer-logo{
  font-size:26px;
  font-weight:700;
  color:#fff;
  display:flex;
  align-items:center;
  gap:8px;
  margin-bottom:16px;
}
.footer-logo::before{
  content:'';
  width:8px;
  height:8px;
  background:var(--accent);
  border-radius:50%;
  display:inline-block;
}
.footer-about p{
  font-size:14px;
  line-height:1.9;
  color:rgba(255,255,255,0.6);
}
.footer h4{
  font-size:13px;
  font-weight:600;
  color:#fff;
  margin-bottom:16px;
  letter-spacing:1px;
}
.footer-nav ul,.footer-cat ul{
  list-style:none;
}
.footer-nav li,.footer-cat li{margin-bottom:10px}
.footer-nav a,.footer-cat a{
  font-size:14px;
  color:rgba(255,255,255,0.65);
  transition:var(--transition);
}
.footer-nav a:hover,.footer-cat a:hover{color:#fff;padding-left:4px}
.footer-contact p{
  font-size:14px;
  color:rgba(255,255,255,0.65);
  margin-bottom:8px;
  line-height:1.8;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.1);
  padding-top:24px;
  text-align:center;
  font-size:13px;
  color:rgba(255,255,255,0.4);
}

/* Back top */
.back-top{
  position:fixed;
  bottom:32px;
  right:32px;
  width:44px;
  height:44px;
  background:var(--primary);
  color:#fff;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:18px;
  box-shadow:var(--shadow);
  transition:var(--transition);
  opacity:0;
  visibility:hidden;
  z-index:99;
}
.back-top.visible{
  opacity:1;
  visibility:visible;
}
.back-top:hover{
  background:var(--accent);
  transform:translateY(-3px);
}

/* Responsive */
@media (max-width:1024px){
  .service-grid{grid-template-columns:repeat(2,1fr)}
  .process-grid{grid-template-columns:repeat(2,1fr)}
  .metrics-grid{grid-template-columns:repeat(2,1fr)}
  .case-grid{gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .main-nav{display:none}
  .nav-toggle{display:block}
  .hero{padding:80px 0}
  .hero h1{font-size:34px}
  .hero .hero-sub{font-size:16px}
  .section{padding:var(--space-tablet) 0}
  .section-header h2{font-size:28px}
  .service-grid{grid-template-columns:1fr}
  .case-grid{grid-template-columns:1fr}
  .case-image img{height:260px}
  .process-grid{grid-template-columns:1fr}
  .process-item::before{display:none}
  .metrics-grid{grid-template-columns:1fr 1fr}
  .cta-form{grid-template-columns:1fr}
  .form-full,.form-submit,.privacy-note{grid-column:span 1}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .lead-block .lead-text{font-size:22px}
}
@media (max-width:520px){
  .metrics-grid{grid-template-columns:1fr}
  .hero h1{font-size:28px}
  .hero{padding:64px 0}
  .container{padding:0 16px}
  .section{padding:var(--space-mobile) 0}
  .section-header h2{font-size:24px}
  .btn{padding:0 20px}
}

/* roulang page: category2 */
:root {
      --primary: #0E4D4D;
      --accent: #D08A3E;
      --dark: #0B2E2E;
      --bg: #FAF7F1;
      --card-bg: #FFFFFF;
      --text: #1F2A33;
      --text-light: #5B6B72;
      --border: #E5E0D6;
      --error: #B33723;
      --success: #1E7B4A;
      --radius: 8px;
      --radius-btn: 4px;
      --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
      --shadow-hover: 0 12px 30px rgba(0, 0, 0, 0.10);
      --transition: all 0.25s ease;
      --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: var(--font-family);
      font-size: 16px;
      line-height: 1.8;
      color: var(--text);
      background-color: var(--bg);
      -webkit-font-smoothing: antialiased;
    }

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

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

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

    ul,
    ol,
    p,
    h1,
    h2,
    h3,
    h4,
    h5 {
      margin: 0;
      padding: 0;
    }

    ul {
      list-style: none;
    }

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

    .section {
      padding: 80px 0;
    }

    .section-head {
      max-width: 760px;
      margin: 0 auto 56px;
      text-align: center;
    }

    .section-tag {
      display: inline-block;
      font-size: 14px;
      font-weight: 600;
      color: var(--accent);
      letter-spacing: 2px;
      text-transform: uppercase;
      margin-bottom: 12px;
    }

    .section-head h2 {
      font-size: 34px;
      line-height: 1.4;
      color: var(--text);
      font-weight: 600;
      margin-bottom: 16px;
    }

    .section-head p {
      font-size: 16px;
      color: var(--text-light);
      line-height: 1.8;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 44px;
      padding: 0 28px;
      border-radius: var(--radius-btn);
      font-size: 15px;
      font-weight: 500;
      cursor: pointer;
      border: 1px solid transparent;
      transition: var(--transition);
      text-align: center;
    }

    .btn-primary {
      background-color: var(--accent);
      color: #ffffff;
    }
    .btn-primary:hover {
      background-color: #b8772f;
      color: #ffffff;
    }
    .btn-primary:active {
      transform: translateY(1px);
    }

    .btn-outline {
      background: transparent;
      border-color: var(--border);
      color: var(--primary);
    }
    .btn-outline:hover {
      background: rgba(14, 77, 77, 0.05);
      color: var(--primary);
      border-color: var(--primary);
    }

    .btn-large {
      min-height: 50px;
      padding: 0 36px;
      font-size: 16px;
    }

    /* Header */
    .site-header {
      background: var(--bg);
      border-bottom: 1px solid var(--border);
      position: sticky;
      top: 0;
      z-index: 100;
    }

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

    .logo {
      font-size: 24px;
      font-weight: 700;
      color: var(--primary);
      letter-spacing: 1px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .logo-dot {
      display: inline-block;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background-color: var(--accent);
    }

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

    .main-nav a {
      font-size: 15px;
      font-weight: 500;
      color: var(--text);
      padding: 8px 2px;
      position: relative;
      display: inline-block;
    }

    .main-nav a::after {
      content: "";
      position: absolute;
      bottom: -2px;
      left: 0;
      width: 100%;
      height: 2px;
      background-color: var(--accent);
      transform: scaleX(0);
      transform-origin: center;
      transition: transform 0.3s ease;
    }

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

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

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

    .nav-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border: 1px solid var(--border);
      border-radius: var(--radius-btn);
      background: transparent;
      cursor: pointer;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 5px;
      padding: 0;
    }

    .nav-toggle span {
      display: block;
      width: 20px;
      height: 2px;
      background-color: var(--text);
      transition: var(--transition);
    }

    .nav-toggle.active span:nth-child(1) {
      transform: translateY(7px) rotate(45deg);
    }
    .nav-toggle.active span:nth-child(2) {
      opacity: 0;
    }
    .nav-toggle.active span:nth-child(3) {
      transform: translateY(-7px) rotate(-45deg);
    }

    /* Hero */
    .page-hero {
      background-size: cover;
      background-position: center;
      position: relative;
      padding: 120px 0;
    }

    .hero-overlay {
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: linear-gradient(135deg, rgba(11, 46, 46, 0.92) 0%, rgba(11, 46, 46, 0.78) 60%, rgba(11, 46, 46, 0.55) 100%);
    }

    .hero-content {
      position: relative;
      z-index: 2;
      max-width: 720px;
    }

    .hero-badge {
      display: inline-block;
      background: rgba(208, 138, 62, 0.15);
      color: var(--accent);
      font-size: 13px;
      font-weight: 600;
      letter-spacing: 1px;
      padding: 6px 16px;
      border-radius: 999px;
      margin-bottom: 20px;
    }

    .hero-content h1 {
      font-size: 46px;
      line-height: 1.3;
      color: #ffffff;
      font-weight: 600;
      margin-bottom: 20px;
    }

    .hero-content p {
      font-size: 18px;
      line-height: 1.8;
      color: rgba(255, 255, 255, 0.85);
      margin-bottom: 36px;
    }

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

    .hero-actions .btn-outline {
      border-color: rgba(255, 255, 255, 0.6);
      color: #ffffff;
    }
    .hero-actions .btn-outline:hover {
      background: rgba(255, 255, 255, 0.08);
      border-color: #ffffff;
    }

    /* Stats Bar */
    .stats-bar {
      background: var(--dark);
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding: 40px 0;
    }

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

    .stat-item {
      text-align: center;
      padding: 12px 0;
    }

    .stat-number {
      font-size: 32px;
      font-weight: 700;
      color: #ffffff;
      line-height: 1.2;
      margin-bottom: 6px;
    }

    .stat-number span {
      color: var(--accent);
    }

    .stat-label {
      font-size: 14px;
      color: rgba(255, 255, 255, 0.65);
    }

    /* Service Blocks */
    .services-section {
      background: var(--bg);
    }

    .service-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 56px;
      align-items: center;
      padding: 56px 0;
      border-bottom: 1px solid var(--border);
    }

    .service-row:last-child {
      border-bottom: none;
    }

    .service-row:nth-child(even) .service-image {
      order: 2;
    }

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

    .service-content {
      padding: 24px 0;
    }

    .service-num {
      display: block;
      font-size: 48px;
      font-weight: 700;
      color: var(--border);
      line-height: 1;
      margin-bottom: 16px;
      letter-spacing: -2px;
    }

    .service-tag {
      display: inline-block;
      background: rgba(14, 77, 77, 0.08);
      color: var(--primary);
      font-size: 13px;
      font-weight: 600;
      padding: 4px 12px;
      border-radius: 999px;
      margin-bottom: 16px;
    }

    .service-content h3 {
      font-size: 26px;
      line-height: 1.4;
      font-weight: 600;
      margin-bottom: 16px;
      color: var(--text);
    }

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

    .service-list {
      margin-top: 12px;
    }

    .service-list li {
      font-size: 14px;
      color: var(--text);
      padding-left: 20px;
      position: relative;
      margin-bottom: 8px;
    }

    .service-list li::before {
      content: "";
      position: absolute;
      left: 0;
      top: 10px;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background-color: var(--accent);
    }

    /* Process */
    .process-section {
      background: var(--card-bg);
    }

    .process-grid {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 20px;
      margin-top: 56px;
    }

    .process-step {
      padding: 32px 24px;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      background: var(--bg);
      position: relative;
      transition: var(--transition);
    }

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

    .step-num {
      display: block;
      font-size: 40px;
      font-weight: 700;
      color: transparent;
      -webkit-text-stroke: 1px var(--accent);
      line-height: 1;
      margin-bottom: 20px;
    }

    .process-step h3 {
      font-size: 18px;
      font-weight: 600;
      margin-bottom: 12px;
      color: var(--text);
    }

    .process-step p {
      font-size: 14px;
      color: var(--text-light);
      line-height: 1.7;
    }

    /* Scene */
    .scene-section {
      background: var(--bg);
    }

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

    .scene-card {
      background: var(--card-bg);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 36px 32px;
      transition: var(--transition);
    }

    .scene-card:hover {
      box-shadow: var(--shadow-hover);
    }

    .scene-icon {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: rgba(14, 77, 77, 0.08);
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 20px;
      color: var(--primary);
      margin-bottom: 20px;
    }

    .scene-card h3 {
      font-size: 20px;
      font-weight: 600;
      margin-bottom: 12px;
      color: var(--text);
    }

    .scene-card p {
      font-size: 14px;
      color: var(--text-light);
      line-height: 1.8;
    }

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

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

    .faq-item {
      border-bottom: 1px solid var(--border);
    }

    .faq-item:first-child {
      border-top: 1px solid var(--border);
    }

    .faq-question {
      display: flex;
      align-items: center;
      justify-content: space-between;
      width: 100%;
      background: transparent;
      border: none;
      padding: 24px 8px;
      font-size: 17px;
      font-weight: 500;
      color: var(--text);
      cursor: pointer;
      text-align: left;
      transition: var(--transition);
      outline: none;
    }

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

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

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

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.4s ease;
    }

    .faq-answer p {
      padding: 0 8px 20px;
      font-size: 15px;
      color: var(--text-light);
      line-height: 1.9;
    }

    /* CTA */
    .cta-section {
      background: var(--dark);
      position: relative;
      overflow: hidden;
    }

    .cta-section::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 4px;
      background: linear-gradient(90deg, var(--accent), transparent);
    }

    .cta-inner {
      max-width: 720px;
      margin: 0 auto;
      text-align: center;
    }

    .cta-inner h2 {
      font-size: 34px;
      font-weight: 600;
      color: #ffffff;
      margin-bottom: 16px;
      line-height: 1.4;
    }

    .cta-inner > p {
      font-size: 16px;
      color: rgba(255, 255, 255, 0.75);
      margin-bottom: 40px;
      line-height: 1.8;
    }

    .cta-form {
      text-align: left;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.15);
      border-radius: var(--radius);
      padding: 40px;
      backdrop-filter: none;
    }

    .form-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
      margin-bottom: 20px;
    }

    .form-group {
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .form-group label {
      font-size: 14px;
      color: rgba(255, 255, 255, 0.85);
      font-weight: 500;
    }

    .form-group input,
    .form-group textarea {
      width: 100%;
      height: 46px;
      border: 1px solid rgba(255, 255, 255, 0.25);
      border-radius: var(--radius-btn);
      background: rgba(255, 255, 255, 0.1);
      color: #ffffff;
      padding: 0 14px;
      font-size: 15px;
      font-family: var(--font-family);
      outline: none;
      transition: var(--transition);
    }

    .form-group textarea {
      height: auto;
      min-height: 90px;
      padding: 12px 14px;
      resize: vertical;
    }

    .form-group input::placeholder,
    .form-group textarea::placeholder {
      color: rgba(255, 255, 255, 0.4);
    }

    .form-group input:focus,
    .form-group textarea:focus {
      border-color: var(--accent);
      box-shadow: 0 0 0 3px rgba(208, 138, 62, 0.2);
    }

    .cta-form .btn {
      width: 100%;
      margin-top: 12px;
    }

    .form-note {
      font-size: 13px;
      color: rgba(255, 255, 255, 0.5);
      text-align: center;
      margin-top: 16px;
    }

    .form-success {
      display: none;
      background: rgba(30, 123, 74, 0.2);
      border: 1px solid rgba(30, 123, 74, 0.6);
      border-radius: var(--radius-btn);
      padding: 16px;
      color: #ffffff;
      font-size: 15px;
      margin-top: 20px;
      text-align: center;
    }

    .form-error {
      background: rgba(179, 55, 35, 0.2);
      border: 1px solid rgba(179, 55, 35, 0.6);
      border-radius: var(--radius-btn);
      padding: 12px 16px;
      color: #ffd9d0;
      font-size: 14px;
      margin-bottom: 16px;
      display: none;
    }

    /* Footer */
    .footer {
      background: var(--dark);
      padding: 60px 0 0;
      color: rgba(255, 255, 255, 0.8);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
      gap: 40px;
      padding-bottom: 40px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .footer-logo {
      font-size: 24px;
      font-weight: 700;
      color: #ffffff;
      margin-bottom: 16px;
    }

    .footer-about p {
      font-size: 14px;
      line-height: 1.9;
      color: rgba(255, 255, 255, 0.6);
    }

    .footer-nav h4,
    .footer-cat h4,
    .footer-contact h4 {
      font-size: 14px;
      font-weight: 600;
      color: #ffffff;
      margin-bottom: 16px;
      text-transform: uppercase;
      letter-spacing: 1px;
    }

    .footer-nav ul,
    .footer-cat ul {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .footer-nav a,
    .footer-cat a {
      font-size: 14px;
      color: rgba(255, 255, 255, 0.7);
      transition: var(--transition);
    }

    .footer-nav a:hover,
    .footer-cat a:hover {
      color: #ffffff;
    }

    .footer-contact p {
      font-size: 14px;
      color: rgba(255, 255, 255, 0.6);
      margin-bottom: 8px;
      line-height: 1.7;
    }

    .footer-bottom {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 20px 0;
      font-size: 13px;
      color: rgba(255, 255, 255, 0.4);
      flex-wrap: wrap;
      gap: 8px;
    }

    /* Focus accessibility */
    a:focus-visible,
    button:focus-visible,
    input:focus-visible,
    textarea:focus-visible {
      outline: 2px solid var(--accent);
      outline-offset: 2px;
    }

    /* Responsive */
    @media (max-width: 1024px) {
      .process-grid {
        grid-template-columns: repeat(3, 1fr);
      }
      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
      }
    }

    @media (max-width: 768px) {
      .section {
        padding: 64px 0;
      }

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

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

      .nav-toggle {
        display: flex;
      }

      .main-nav {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--bg);
        border-bottom: 1px solid var(--border);
        padding: 16px 24px 24px;
        box-shadow: var(--shadow);
      }

      .main-nav.open {
        display: block;
      }

      .main-nav ul {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
      }

      .main-nav a {
        display: block;
        padding: 14px 0;
        font-size: 16px;
        border-bottom: 1px solid var(--border);
      }

      .main-nav a::after {
        display: none;
      }

      .main-nav a.active {
        color: var(--accent);
      }

      .page-hero {
        padding: 80px 0;
      }

      .hero-content h1 {
        font-size: 34px;
      }

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

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

      .service-row {
        grid-template-columns: 1fr;
        gap: 24px;
        padding: 40px 0;
      }

      .service-row:nth-child(even) .service-image {
        order: 0;
      }

      .service-image img {
        max-height: 260px;
      }

      .service-num {
        font-size: 36px;
      }

      .service-content h3 {
        font-size: 22px;
      }

      .process-grid {
        grid-template-columns: 1fr;
        gap: 16px;
      }

      .process-step {
        padding: 24px;
      }

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

      .form-row {
        grid-template-columns: 1fr;
        gap: 16px;
      }

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

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

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

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

    @media (max-width: 520px) {
      .container {
        padding: 0 16px;
      }

      .section {
        padding: 48px 0;
      }

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

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

      .hero-content h1 {
        font-size: 28px;
      }

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

      .hero-actions {
        flex-direction: column;
        width: 100%;
      }

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

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

      .stat-number {
        font-size: 26px;
      }

      .stat-label {
        font-size: 13px;
      }

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

      .service-content p {
        font-size: 14px;
      }

      .faq-question {
        font-size: 15px;
        padding: 20px 4px;
      }

      .faq-answer p {
        font-size: 14px;
      }

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

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

      .form-group label {
        font-size: 13px;
      }

      .form-group input,
      .form-group textarea {
        font-size: 14px;
      }

      .btn-large {
        font-size: 15px;
        padding: 0 24px;
      }

      .footer-grid {
        gap: 28px;
      }

      .footer-about p,
      .footer-contact p,
      .footer-nav a,
      .footer-cat a {
        font-size: 13px;
      }
    }