/* roulang page: index */
:root {
  --color-primary: #0E4D40;
  --color-primary-dark: #0A2C26;
  --color-accent: #C49A5A;
  --color-accent-dark: #A8803E;
  --color-accent-light: #F3E7D4;
  --color-bg: #F6F4ED;
  --color-card: #FFFFFF;
  --color-text: #1F2A26;
  --color-text-secondary: #5F6B67;
  --color-border: #E6E3DA;
  --color-success: #2E9B6B;
  --color-warning: #C07C3C;
  --color-error: #B45B5F;
  --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
  --font-sans: "Noto Sans SC", "Source Han Sans SC", "Microsoft YaHei", "PingFang SC", sans-serif;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 20px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.04), 0 8px 24px rgba(0,0,0,.06);
  --shadow-md: 0 2px 4px rgba(0,0,0,.05), 0 16px 32px rgba(0,0,0,.10);
  --space-section: 88px;
  --space-container: 24px;
  --transition-fast: 150ms ease;
  --transition-slow: 250ms ease;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

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

a:focus-visible,
button:focus-visible,
summary:focus-visible,
input:focus-visible {
  outline: 3px solid rgba(196, 154, 90, 0.5);
  outline-offset: 2px;
  border-radius: 4px;
}

ul, ol {
  list-style: none;
}

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

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding-left: var(--space-container);
  padding-right: var(--space-container);
}

/* 顶部导航 */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(246, 244, 237, 0.88);
  -webkit-backdrop-filter: saturate(1.4) blur(10px);
  backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid transparent;
  transition: background var(--transition-slow), border-color var(--transition-slow), box-shadow var(--transition-slow);
}

.site-header.is-scrolled {
  background: rgba(246, 244, 237, 0.94);
  border-bottom-color: var(--color-border);
  box-shadow: 0 4px 24px rgba(0,0,0,0.04);
}

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

.brand {
  display: inline-flex;
  align-items: baseline;
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.brand__suffix {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-accent-dark);
  margin-left: 4px;
  letter-spacing: 0.1em;
}

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

.main-nav__link {
  position: relative;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  padding: 8px 2px;
  transition: color var(--transition-fast);
}

.main-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 3px;
  background: var(--color-accent);
  border-radius: 3px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-fast);
}

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

.main-nav__link:hover::after {
  transform: scaleX(0.4);
}

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

.main-nav__link.active::after {
  transform: scaleX(1);
}

/* 移动端Tab */
.mobile-tab {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: 64px;
  background: #FFFFFF;
  border-top: 1px solid var(--color-border);
  box-shadow: 0 -4px 20px rgba(0,0,0,0.05);
}

.mobile-tab__inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  height: 100%;
}

.mobile-tab__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  font-size: 10px;
  color: var(--color-text-secondary);
  position: relative;
  min-height: 52px;
  transition: color var(--transition-fast);
}

.mobile-tab__item svg {
  width: 22px;
  height: 22px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

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

.mobile-tab__item.active::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 32px;
  height: 4px;
  background: var(--color-accent);
  border-radius: 0 0 4px 4px;
}

/* Hero */
.hero {
  padding-top: 160px;
  padding-bottom: var(--space-section);
}

.hero__inner {
  display: grid;
  grid-template-columns: 6.5fr 5.5fr;
  gap: 56px;
  align-items: center;
}

.hero__badge {
  display: inline-block;
  background: var(--color-accent-light);
  color: var(--color-accent-dark);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: var(--radius-lg);
  letter-spacing: 0.12em;
  margin-bottom: 24px;
}

.hero__title {
  font-family: var(--font-serif);
  font-size: clamp(34px, 4.6vw, 58px);
  line-height: 1.2;
  color: var(--color-primary);
  font-weight: 700;
  letter-spacing: 0.02em;
  margin-bottom: 20px;
}

.hero__subtitle {
  font-size: 17px;
  color: var(--color-text-secondary);
  line-height: 1.75;
  max-width: 460px;
  margin-bottom: 36px;
}

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

.hero__visual {
  position: relative;
}

.hero__image-frame {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1.5px solid var(--color-accent);
  box-shadow: var(--shadow-sm);
}

.hero__image-frame img {
  width: 100%;
  height: 360px;
  object-fit: cover;
  display: block;
}

.hero__dot {
  position: absolute;
  right: -10px;
  bottom: -10px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 0 6px rgba(196, 154, 90, 0.2);
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-lg);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: center;
  line-height: 1.4;
}

.btn--primary {
  background: linear-gradient(135deg, #D4AE6A, #C49A5A 55%, #A8803E);
  color: var(--color-primary-dark);
  box-shadow: 0 2px 12px rgba(196, 154, 90, 0.25);
}

.btn--primary:hover {
  filter: brightness(1.04);
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(196, 154, 90, 0.35);
}

.btn--primary:active {
  transform: translateY(0);
  box-shadow: 0 1px 6px rgba(196, 154, 90, 0.25);
}

.btn--secondary {
  background: #FFFFFF;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}

.btn--secondary:hover {
  background: rgba(14, 77, 64, 0.08);
  transform: translateY(-1px);
}

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

/* 区块通用 */
.section {
  padding-top: var(--space-section);
  padding-bottom: var(--space-section);
}

.section-head {
  margin-bottom: 48px;
}

.section-index {
  display: block;
  font-family: var(--font-serif);
  font-size: 15px;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 0.14em;
  margin-bottom: 10px;
}

.section-head h2 {
  font-family: var(--font-serif);
  font-size: clamp(24px, 2.8vw, 36px);
  line-height: 1.35;
  color: var(--color-primary);
  font-weight: 700;
  margin-bottom: 14px;
}

.section-subtitle {
  font-size: 16px;
  color: var(--color-text-secondary);
  max-width: 620px;
  line-height: 1.7;
}

.section-head--split {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 16px;
}

/* 痛点区块 */
.pain-section {
  background: var(--color-card);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding-top: var(--space-section);
  padding-bottom: var(--space-section);
}

.pain-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 40px;
}

.pain-card {
  display: flex;
  gap: 20px;
  padding: 28px;
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  transition: all var(--transition-fast);
}

.pain-card:hover {
  border-bottom-color: var(--color-accent);
  box-shadow: var(--shadow-sm);
}

.pain-card__icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--color-accent-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent-dark);
}

.pain-card__icon svg {
  width: 22px;
  height: 22px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.6;
}

.pain-card h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}

.pain-card p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.pain-transition {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 28px;
  background: var(--color-accent-light);
  border-radius: var(--radius-lg);
}

.pain-transition__line {
  width: 4px;
  height: 28px;
  background: var(--color-accent);
  border-radius: 4px;
  flex-shrink: 0;
}

.pain-transition p {
  font-size: 15px;
  color: var(--color-primary);
  font-weight: 500;
  line-height: 1.6;
}

/* 方案区块 */
.solution-section {
  padding-top: var(--space-section);
  padding-bottom: var(--space-section);
}

.solution__inner {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 64px;
  align-items: center;
}

.solution__content .section-index {
  margin-bottom: 16px;
}

.solution__content h2 {
  font-family: var(--font-serif);
  font-size: clamp(24px, 2.8vw, 36px);
  color: var(--color-primary);
  line-height: 1.35;
  margin-bottom: 18px;
}

.solution__content > p {
  font-size: 16px;
  color: var(--color-text-secondary);
  line-height: 1.75;
  margin-bottom: 32px;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.feature-list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.feature-list__icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(46, 155, 107, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 3px;
}

.feature-list__icon svg {
  width: 14px;
  height: 14px;
  stroke: var(--color-success);
  stroke-width: 2.4;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.feature-list h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 4px;
}

.feature-list p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.solution__visual {
  position: relative;
  min-height: 420px;
}

.solution__main {
  width: 88%;
  height: 360px;
  object-fit: cover;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  border: 1.5px solid var(--color-border);
}

.solution__overlay-card {
  position: absolute;
  right: 0;
  top: 60px;
  width: 58%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 4px solid #FFFFFF;
  box-shadow: var(--shadow-md);
}

.solution__overlay-card img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  display: block;
}

/* 数据成果 */
.stats-section {
  background: var(--color-primary-dark);
  color: #FFFFFF;
  padding-top: var(--space-section);
  padding-bottom: var(--space-section);
}

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

.stat-item {
  padding: 32px 20px;
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: all var(--transition-fast);
}

.stat-item:hover {
  background: rgba(255,255,255,0.04);
}

.stat-item__number {
  font-family: var(--font-serif);
  font-size: clamp(32px, 3.4vw, 48px);
  font-weight: 700;
  color: var(--color-accent);
  display: block;
  line-height: 1.2;
  margin-bottom: 8px;
}

.stat-item__label {
  font-size: 14px;
  color: rgba(255,255,255,0.75);
  letter-spacing: 0.04em;
}

/* 证言区块 */
.testimonial-section {
  padding-top: var(--space-section);
  padding-bottom: var(--space-section);
  background: var(--color-bg);
}

.testimonial-grid {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 32px;
  align-items: start;
}

.testimonial-card {
  background: var(--color-card);
  border-radius: var(--radius-lg);
  padding: 36px;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

.testimonial-card:hover {
  box-shadow: var(--shadow-md);
  border-bottom-color: var(--color-accent);
}

.testimonial-card--large {
  margin-top: 24px;
}

.testimonial-card--small {
  margin-bottom: 24px;
}

.testimonial-card__quote {
  font-family: var(--font-serif);
  font-size: 56px;
  line-height: 1;
  color: var(--color-accent);
  display: block;
  margin-bottom: 12px;
}

.testimonial-card p {
  font-size: 17px;
  line-height: 1.8;
  color: var(--color-text);
  margin-bottom: 24px;
  font-family: var(--font-serif);
}

.testimonial-card footer {
  display: flex;
  align-items: center;
  gap: 12px;
}

.avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 600;
}

.testimonial-card footer strong {
  display: block;
  font-size: 15px;
  color: var(--color-text);
}

.testimonial-card footer span:last-child {
  font-size: 13px;
  color: var(--color-text-secondary);
}

/* 资讯板块 */
.news-section {
  padding-top: var(--space-section);
  padding-bottom: var(--space-section);
  background: var(--color-card);
}

.link-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  padding: 10px 18px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.link-more:hover {
  border-color: var(--color-primary);
  background: rgba(14, 77, 64, 0.04);
}

.news-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.news-card {
  display: flex;
  gap: 24px;
  padding: 20px;
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  transition: all var(--transition-fast);
}

.news-card:hover {
  border-bottom-color: var(--color-accent);
  box-shadow: var(--shadow-sm);
}

.news-card--feature {
  background: var(--color-bg);
}

.news-card__thumb {
  flex-shrink: 0;
  width: 240px;
  height: 150px;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.news-card--feature .news-card__thumb {
  width: 300px;
  height: 170px;
}

.news-card__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.news-card:hover .news-card__thumb img {
  transform: scale(1.03);
}

.news-card__body {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.news-card__tags {
  margin-bottom: 8px;
}

.tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: var(--radius-sm);
  letter-spacing: 0.05em;
}

.tag--green {
  background: #E1EEE4;
  color: var(--color-primary);
}

.tag--gold {
  background: var(--color-accent-light);
  color: var(--color-accent-dark);
}

.news-card__body h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.45;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-card__body > p {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 12px;
  flex: 1;
}

.news-card__meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--color-text-secondary);
}

.news-card__meta time {
  color: var(--color-text-secondary);
}

.news-card__link {
  font-weight: 600;
  color: var(--color-primary);
}

.empty-state {
  border: 1.5px dashed var(--color-border);
  border-radius: 16px;
  padding: 60px 20px;
  text-align: center;
  color: var(--color-text-secondary);
  background: transparent;
}

.empty-state__icon {
  display: block;
  font-size: 32px;
  margin-bottom: 12px;
  opacity: 0.5;
}

.empty-state p {
  font-size: 15px;
}

/* FAQ */
.faq-section {
  padding-top: var(--space-section);
  padding-bottom: var(--space-section);
  background: var(--color-bg);
}

.faq__inner {
  display: grid;
  grid-template-columns: 4fr 8fr;
  gap: 64px;
  align-items: start;
}

.faq__intro .section-index {
  margin-bottom: 16px;
}

.faq__intro h2 {
  font-family: var(--font-serif);
  font-size: clamp(24px, 2.8vw, 36px);
  color: var(--color-primary);
  margin-bottom: 14px;
}

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

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

.faq-item {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  overflow: hidden;
  transition: box-shadow var(--transition-fast);
}

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

.faq-item summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 24px;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  list-style: none;
  transition: color var(--transition-fast);
}

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

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

.faq-item__icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-accent-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 400;
  color: var(--color-accent-dark);
  transition: transform var(--transition-slow);
}

.faq-item[open] .faq-item__icon {
  transform: rotate(45deg);
}

.faq-item p {
  padding: 0 24px 20px 24px;
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  border-top: 1px solid var(--color-border);
  padding-top: 16px;
}

/* CTA */
.cta-section {
  padding-top: var(--space-section);
  padding-bottom: var(--space-section);
  background: var(--color-card);
}

.cta__banner {
  position: relative;
  background: var(--color-primary-dark);
  border-radius: var(--radius-xl);
  padding: 72px 64px;
  text-align: center;
  color: #FFFFFF;
  overflow: hidden;
}

.cta__banner::before {
  content: "";
  position: absolute;
  inset: 16px;
  border: 1px solid rgba(196, 154, 90, 0.4);
  border-radius: 16px;
  pointer-events: none;
}

.cta__banner h2 {
  font-family: var(--font-serif);
  font-size: clamp(24px, 2.8vw, 36px);
  color: #FFFFFF;
  margin-bottom: 16px;
  position: relative;
}

.cta__banner p {
  font-size: 16px;
  color: rgba(255,255,255,0.8);
  max-width: 520px;
  margin: 0 auto 32px auto;
  line-height: 1.7;
  position: relative;
}

.cta__banner .btn--primary {
  position: relative;
}

/* 页脚 */
.site-footer {
  background: var(--color-primary-dark);
  color: rgba(255,255,255,0.7);
  padding-top: 64px;
  padding-bottom: 32px;
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer__logo {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  color: #FFFFFF;
  display: block;
  margin-bottom: 12px;
}

.footer__brand p {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255,255,255,0.6);
  max-width: 260px;
}

.footer__col h3 {
  font-size: 15px;
  font-weight: 600;
  color: #FFFFFF;
  margin-bottom: 18px;
  letter-spacing: 0.03em;
}

.footer__col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer__col a,
.footer__col li {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  transition: color var(--transition-fast);
}

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

.footer__bottom {
  padding-top: 24px;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}

/* 响应式 */
@media (max-width: 1024px) {
  :root {
    --space-section: 72px;
  }

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

  .hero__visual {
    max-width: 560px;
  }

  .solution__inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .solution__visual {
    min-height: auto;
    order: -1;
  }

  .solution__main {
    width: 100%;
    height: 320px;
  }

  .solution__overlay-card {
    top: auto;
    bottom: -24px;
    right: 24px;
    width: 45%;
  }

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

  .testimonial-card--large {
    margin-top: 0;
  }

  .testimonial-card--small {
    margin-bottom: 0;
  }

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

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

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

@media (max-width: 768px) {
  :root {
    --space-section: 56px;
  }

  .site-header {
    height: 60px;
  }

  .header__inner {
    height: 60px;
  }

  .main-nav {
    display: none;
  }

  .mobile-tab {
    display: block;
  }

  body {
    padding-bottom: 64px;
  }

  .hero {
    padding-top: 100px;
  }

  .hero__title {
    font-size: clamp(30px, 7vw, 40px);
  }

  .hero__subtitle {
    font-size: 15px;
  }

  .hero__actions {
    flex-direction: column;
    gap: 12px;
  }

  .btn {
    width: 100%;
  }

  .hero__image-frame img {
    height: 240px;
  }

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

  .pain-transition {
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
  }

  .solution__main {
    height: 240px;
  }

  .solution__overlay-card {
    width: 55%;
    right: 12px;
    bottom: -18px;
  }

  .solution__overlay-card img {
    height: 120px;
  }

  .stats__inner {
    grid-template-columns: 1fr 1fr;
    gap: 14px;
  }

  .stat-item {
    padding: 20px 12px;
  }

  .testimonial-grid {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    gap: 16px;
    padding-bottom: 16px;
    margin: -8px;
    padding: 8px;
  }

  .testimonial-card {
    flex-shrink: 0;
    width: 82%;
    scroll-snap-align: start;
    padding: 24px;
  }

  .news-card {
    flex-direction: column;
    gap: 14px;
  }

  .news-card__thumb,
  .news-card--feature .news-card__thumb {
    width: 100%;
    height: 180px;
  }

  .news-card__body h3 {
    font-size: 17px;
  }

  .news-card__body > p {
    -webkit-line-clamp: 2;
  }

  .cta__banner {
    padding: 48px 24px;
  }

  .cta__banner::before {
    inset: 10px;
  }

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

  .section-head--split {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 520px) {
  .hero__badge {
    font-size: 12px;
  }

  .stat-item__number {
    font-size: 28px;
  }

  .stat-item__label {
    font-size: 12px;
  }

  .pain-card {
    padding: 20px;
  }

  .faq-item summary {
    padding: 16px 16px;
    font-size: 14px;
  }

  .faq-item p {
    padding: 14px 16px 16px 16px;
  }

  .news-card__meta {
    flex-wrap: wrap;
  }
}

/* roulang page: category1 */
:root {
  --primary: #0E4D40;
  --primary-dark: #0A2C26;
  --accent: #C49A5A;
  --accent-deep: #A97E42;
  --accent-light: #F3E7D4;
  --bg: #F6F4ED;
  --card: #FFFFFF;
  --text: #1F2A26;
  --text-muted: #5F6B67;
  --border: #E6E3DA;
  --success: #2E9B6B;
  --warning: #C07C3C;
  --danger: #B45B5F;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, .04), 0 8px 24px rgba(0, 0, 0, .06);
  --shadow-lg: 0 2px 4px rgba(0, 0, 0, .05), 0 16px 32px rgba(0, 0, 0, .10);
  --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
  --font-sans: "Noto Sans SC", "Source Han Sans SC", "Microsoft YaHei", sans-serif;
  --ease: 150ms cubic-bezier(.4, 0, .2, 1);
  --ease-slow: 250ms cubic-bezier(.4, 0, .2, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  padding-top: 72px;
}

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

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

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

ul,
ol {
  list-style: none;
}

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

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 88px 0;
}

.section-index {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-serif);
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: .08em;
  margin-bottom: 16px;
}

.section-index::before {
  content: "";
  width: 24px;
  height: 1px;
  background: var(--accent);
  margin-right: 10px;
}

.section-head {
  max-width: 680px;
  margin-bottom: 48px;
}

.section-head h2 {
  font-family: var(--font-serif);
  font-size: clamp(24px, 2.8vw, 36px);
  line-height: 1.3;
  color: var(--primary);
  margin-bottom: 12px;
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 28px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .02em;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: all var(--ease);
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 3px solid rgba(196, 154, 90, .45);
  outline-offset: 2px;
}

.btn--primary {
  background: linear-gradient(135deg, #D5AF6E, var(--accent) 55%, var(--accent-deep));
  color: var(--primary-dark);
  border-color: transparent;
  box-shadow: 0 4px 14px rgba(196, 154, 90, .24);
}

.btn--primary:hover {
  filter: brightness(1.04);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(196, 154, 90, .32);
  color: var(--primary-dark);
}

.btn--primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(196, 154, 90, .2);
}

.btn--ghost {
  background: var(--card);
  border-color: var(--primary);
  color: var(--primary);
}

.btn--ghost:hover {
  background: rgba(14, 77, 64, .08);
  transform: translateY(-1px);
  color: var(--primary);
}

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

.btn--light {
  background: var(--card);
  color: var(--primary-dark);
  border-color: transparent;
}

.btn--light:hover {
  background: var(--accent-light);
  transform: translateY(-1px);
  color: var(--primary-dark);
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 72px;
  background: rgba(246, 244, 237, .96);
  z-index: 1000;
  transition: background var(--ease-slow), box-shadow var(--ease-slow);
}

.site-header.is-scrolled {
  background: rgba(246, 244, 237, .94);
  -webkit-backdrop-filter: saturate(1.4) blur(10px);
  backdrop-filter: saturate(1.4) blur(10px);
  box-shadow: 0 1px 0 rgba(0, 0, 0, .06);
}

.header__inner {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  font-family: var(--font-serif);
  font-size: 26px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: .02em;
}

.brand__suffix {
  font-size: 14px;
  font-weight: 500;
  color: var(--accent-deep);
  margin-left: 4px;
  letter-spacing: .12em;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 36px;
}

.main-nav__link {
  position: relative;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  padding: 8px 0;
  transition: color var(--ease);
}

.main-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 4px;
  border-radius: 4px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--ease-slow);
}

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

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

.main-nav__link.active::after {
  transform: scaleX(1);
}

/* Mobile Tabbar */
.mobile-tabbar {
  display: none;
}

/* Page Hero */
.page-hero {
  padding: 72px 0 88px;
  background:
    linear-gradient(180deg, rgba(246, 244, 237, .92) 0%, var(--bg) 100%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}

.page-hero__inner {
  display: grid;
  grid-template-columns: 6.5fr 5.5fr;
  gap: 56px;
  align-items: center;
}

.page-hero__content {
  padding-right: 12px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  background: var(--accent-light);
  color: var(--accent-deep);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .1em;
  padding: 6px 14px;
  border-radius: 4px;
  margin-bottom: 24px;
}

.page-hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(34px, 4.6vw, 58px);
  line-height: 1.22;
  color: var(--primary);
  margin-bottom: 20px;
  letter-spacing: .01em;
}

.page-hero__lead {
  font-size: 17px;
  line-height: 1.85;
  color: var(--text-muted);
  max-width: 480px;
  margin-bottom: 32px;
}

.page-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 36px;
}

.page-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  padding-top: 4px;
}

.page-hero__meta li {
  display: inline-flex;
  align-items: center;
  font-size: 13px;
  color: var(--text-muted);
}

.page-hero__meta li::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  margin-right: 8px;
}

.page-hero__media {
  position: relative;
}

.page-hero__media img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  border: 1.5px solid var(--accent);
  box-shadow: var(--shadow-lg);
}

.hero-dot {
  position: absolute;
  right: -14px;
  bottom: -14px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--accent);
  border: 4px solid var(--bg);
}

/* Service Features */
.service-features {
  background: var(--card);
}

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

.feature-card {
  display: flex;
  gap: 20px;
  padding: 32px 28px;
  background: var(--bg);
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  box-shadow: var(--shadow-sm);
  transition: all var(--ease-slow);
}

.feature-card:hover {
  border-bottom-color: var(--accent);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.feature-card__icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-light);
  color: var(--accent-deep);
}

.feature-card__icon svg {
  width: 24px;
  height: 24px;
}

.feature-card h3 {
  font-family: var(--font-serif);
  font-size: 19px;
  color: var(--primary);
  margin-bottom: 6px;
}

.feature-card p {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--text-muted);
}

/* Scenario Section */
.scenario-section {
  background: var(--bg);
}

.scenario-grid {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: 56px;
  align-items: center;
}

.scenario-copy .section-head {
  margin-bottom: 32px;
}

.scenario-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.scenario-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--text);
}

.scenario-list li svg {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  margin-top: 2px;
  color: var(--primary);
}

.scenario-cards {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.scenario-card {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 20px;
  background: var(--card);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--ease-slow);
}

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

.scenario-card img {
  width: 100%;
  height: 100%;
  min-height: 140px;
  object-fit: cover;
}

.scenario-card__body {
  padding: 22px 24px 22px 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.scenario-card__body h3 {
  font-family: var(--font-serif);
  font-size: 18px;
  color: var(--primary);
  margin-bottom: 6px;
}

.scenario-card__body p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-muted);
}

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

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.process-step {
  position: relative;
  padding: 36px 24px 24px;
  background: var(--bg);
  border-radius: var(--radius-md);
  border-top: 3px solid var(--accent);
  box-shadow: var(--shadow-sm);
  transition: transform var(--ease-slow), box-shadow var(--ease-slow);
}

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

.process-step__num {
  font-family: var(--font-serif);
  font-size: 42px;
  font-weight: 700;
  color: rgba(14, 77, 64, .16);
  line-height: 1;
  margin-bottom: 16px;
}

.process-step h3 {
  font-family: var(--font-serif);
  font-size: 17px;
  color: var(--primary);
  margin-bottom: 6px;
}

.process-step p {
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--text-muted);
}

/* Stats */
.stats-section {
  background:
    linear-gradient(rgba(10, 44, 38, .94), rgba(10, 44, 38, .94)),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  padding: 88px 0;
}

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

.stat-item {
  text-align: center;
  padding: 32px 16px;
  border: 1px solid rgba(246, 244, 237, .16);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, .03);
  transition: border-color var(--ease);
}

.stat-item:hover {
  border-color: rgba(196, 154, 90, .5);
}

.stat-item strong {
  display: block;
  font-family: var(--font-serif);
  font-size: 44px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1.2;
  margin-bottom: 8px;
}

.stat-item span {
  font-size: 14px;
  color: rgba(246, 244, 237, .8);
  letter-spacing: .04em;
}

/* Testimonials */
.testimonial-section {
  background: var(--bg);
}

.testimonial-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 32px;
  align-items: start;
  margin-top: 16px;
}

.testimonial-card {
  background: var(--card);
  border-radius: var(--radius-md);
  padding: 36px 32px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--ease-slow), transform var(--ease-slow);
}

.testimonial-card:first-child {
  transform: translateY(-12px);
}

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

.testimonial-card:first-child:hover {
  transform: translateY(-16px);
}

.testimonial-card blockquote {
  font-family: var(--font-serif);
  font-size: 16.5px;
  line-height: 1.8;
  color: var(--text);
  margin-bottom: 24px;
  position: relative;
  padding-left: 24px;
}

.testimonial-card blockquote::before {
  content: "“";
  position: absolute;
  left: -4px;
  top: -12px;
  font-family: var(--font-serif);
  font-size: 52px;
  color: var(--accent);
  line-height: 1;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 14px;
}

.testimonial-author .avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 700;
}

.testimonial-author strong {
  display: block;
  font-size: 15px;
  color: var(--primary);
}

.testimonial-author span {
  font-size: 13px;
  color: var(--text-muted);
}

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

.faq-layout {
  display: grid;
  grid-template-columns: 4fr 8fr;
  gap: 56px;
  align-items: start;
}

.faq-intro .section-head {
  margin-bottom: 0;
}

.faq-intro p {
  font-size: 15px;
  color: var(--text-muted);
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  background: var(--card);
  transition: border-color var(--ease);
}

.faq-item.open {
  border-color: var(--accent);
}

.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 22px 24px;
  background: transparent;
  border: none;
  font-size: 15.5px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  text-align: left;
  min-height: 56px;
  transition: color var(--ease);
}

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

.faq-q:focus-visible {
  outline: 3px solid rgba(14, 77, 64, .25);
  outline-offset: -2px;
}

.faq-q .faq-icon {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1.5px solid var(--border);
  border-radius: 50%;
  color: var(--accent);
  font-size: 16px;
  font-weight: 400;
  transition: transform var(--ease-slow), border-color var(--ease);
}

.faq-item.open .faq-q .faq-icon {
  transform: rotate(45deg);
  border-color: var(--accent);
}

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--ease-slow);
}

.faq-a p {
  padding: 0 24px 22px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text-muted);
}

/* CTA Banner */
.cta-banner {
  background:
    linear-gradient(rgba(10, 44, 38, .96), rgba(10, 44, 38, .96)),
    url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  padding: 88px 24px;
  position: relative;
}

.cta-banner::before {
  content: "";
  position: absolute;
  inset: 24px;
  border: 1.5px solid var(--accent);
  border-radius: var(--radius-lg);
  pointer-events: none;
}

.cta-banner__inner {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
}

.cta-banner h2 {
  font-family: var(--font-serif);
  font-size: clamp(26px, 3vw, 38px);
  line-height: 1.4;
  color: #fff;
  margin-bottom: 12px;
}

.cta-banner p {
  font-size: 16px;
  line-height: 1.8;
  color: rgba(246, 244, 237, .85);
  margin-bottom: 32px;
}

/* Footer */
.site-footer {
  background: var(--primary-dark);
  color: rgba(246, 244, 237, .82);
  padding: 72px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 56px;
}

.footer-brand .brand {
  color: #fff;
  margin-bottom: 18px;
}

.footer-brand .brand__suffix {
  color: var(--accent);
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(246, 244, 237, .68);
  max-width: 280px;
}

.footer-col h4 {
  font-family: var(--font-serif);
  font-size: 16px;
  color: #fff;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}

.footer-col h4::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 24px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

.footer-col a {
  display: flex;
  align-items: center;
  font-size: 14px;
  color: rgba(246, 244, 237, .7);
  padding: 5px 0;
  transition: color var(--ease), padding-left var(--ease);
}

.footer-col a::before {
  content: "";
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent);
  margin-right: 8px;
  flex-shrink: 0;
}

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

.footer-col p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(246, 244, 237, .68);
  padding: 4px 0;
}

.footer-bottom {
  border-top: 1px solid rgba(246, 244, 237, .12);
  padding: 24px 0;
  text-align: center;
}

.footer-bottom span {
  font-size: 13px;
  color: rgba(246, 244, 237, .5);
  letter-spacing: .04em;
}

/* Input base */
.form-control {
  width: 100%;
  height: 44px;
  padding: 0 14px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  background: var(--card);
  color: var(--text);
  font-size: 15px;
  transition: border-color var(--ease), box-shadow var(--ease);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(14, 77, 64, .12);
}

.form-control.error {
  border-color: var(--danger);
}

/* Responsive */
@media (max-width: 1024px) {
  .page-hero__inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .page-hero__media img {
    height: 360px;
  }

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

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

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

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

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

@media (max-width: 768px) {
  body {
    padding-top: 64px;
    padding-bottom: 64px;
  }

  .site-header {
    height: 64px;
  }

  .header__inner {
    height: 64px;
    justify-content: center;
  }

  .main-nav {
    display: none;
  }

  .mobile-tabbar {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 64px;
    background: rgba(255, 255, 255, .97);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border-top: 1px solid var(--border);
    z-index: 999;
  }

  .mobile-tabbar__item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    font-size: 10px;
    color: var(--text-muted);
    text-decoration: none;
    position: relative;
    min-height: 44px;
    transition: color var(--ease);
  }

  .mobile-tabbar__item svg {
    width: 22px;
    height: 22px;
    stroke: currentColor;
    fill: none;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
  }

  .mobile-tabbar__item::before {
    content: "";
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 4px;
    border-radius: 0 0 4px 4px;
    background: var(--accent);
    transition: width var(--ease);
  }

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

  .mobile-tabbar__item.active::before {
    width: 100%;
  }

  .section {
    padding: 56px 0;
  }

  .page-hero {
    padding: 48px 0 56px;
  }

  .page-hero h1 {
    font-size: 30px;
  }

  .page-hero__lead {
    font-size: 16px;
  }

  .page-hero__actions {
    flex-direction: column;
    gap: 12px;
  }

  .btn {
    width: 100%;
  }

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

  .feature-card {
    padding: 24px 20px;
  }

  .scenario-card {
    grid-template-columns: 1fr;
  }

  .scenario-card img {
    height: 180px;
  }

  .scenario-card__body {
    padding: 16px 20px 20px;
  }

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

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

  .stat-item {
    padding: 24px 12px;
  }

  .stat-item strong {
    font-size: 32px;
  }

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

  .testimonial-card:first-child {
    transform: none;
  }

  .testimonial-card:first-child:hover {
    transform: translateY(-4px);
  }

  .testimonial-card {
    padding: 28px 24px;
  }

  .cta-banner {
    padding: 64px 16px;
  }

  .cta-banner::before {
    inset: 12px;
  }

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

  .footer-brand p {
    max-width: none;
  }
}

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

  .page-hero__media img {
    height: 260px;
  }

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

  .scenario-card img {
    height: 160px;
  }
}

/* roulang page: article */
:root {
  --color-primary: #0E4D40;
  --color-primary-dark: #0A2C26;
  --color-accent: #C49A5A;
  --color-accent-light: #F3E7D4;
  --color-bg: #F6F4ED;
  --color-card: #FFFFFF;
  --color-text: #1F2A26;
  --color-text-secondary: #5F6B67;
  --color-border: #E6E3DA;
  --color-success: #2E9B6B;
  --color-warning: #C07C3C;
  --color-error: #B45B5F;
  --color-green-light: #E1EEE4;
  --radius-sm: 4px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.04), 0 8px 24px rgba(0,0,0,.06);
  --shadow-lg: 0 2px 4px rgba(0,0,0,.05), 0 16px 32px rgba(0,0,0,.10);
  --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", serif;
  --font-sans: "Noto Sans SC", "Source Han Sans SC", "Microsoft YaHei", "PingFang SC", sans-serif;
  --transition-fast: 150ms;
  --transition-slow: 250ms;
  --header-height: 72px;
  --mobile-tab-height: 64px;
  --container-max: 1180px;
  --gutter: 24px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 16px);
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

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

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

a:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

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

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

/* ========== Header ========== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  z-index: 100;
  background: rgba(246, 244, 237, 0.94);
  backdrop-filter: saturate(1.4) blur(10px);
  -webkit-backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-slow) ease, box-shadow var(--transition-slow) ease;
}

.site-header.is-scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: 0 1px 8px rgba(0, 0, 0, 0.04);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.brand {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.02em;
  display: inline-flex;
  align-items: baseline;
  line-height: 1.2;
  white-space: nowrap;
}

.brand__suffix {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-accent);
  margin-left: 4px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.main-nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  height: calc(var(--header-height) - 20px);
  padding: 0 18px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-secondary);
  border-radius: var(--radius-md);
  transition: color var(--transition-fast) ease, background var(--transition-fast) ease;
}

.main-nav__link::after {
  content: "";
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 8px;
  height: 4px;
  border-radius: 2px;
  background: var(--color-accent);
  opacity: 0;
  transform: scaleX(0.6);
  transition: opacity var(--transition-fast) ease, transform var(--transition-fast) ease;
}

.main-nav__link:hover {
  color: var(--color-primary);
  background: rgba(14, 77, 64, 0.05);
}

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

.main-nav__link.active::after {
  opacity: 1;
  transform: scaleX(1);
}

/* ========== Mobile Tab ========== */
.mobile-tab {
  display: none;
}

/* ========== Breadcrumb ========== */
.breadcrumb-wrap {
  padding-top: calc(var(--header-height) + 28px);
  padding-bottom: 16px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: var(--color-text-secondary);
  letter-spacing: 0.03em;
}

.breadcrumb a {
  color: var(--color-text-secondary);
  transition: color var(--transition-fast) ease;
}

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

.breadcrumb__sep {
  color: var(--color-border);
}

.breadcrumb__current {
  color: var(--color-primary);
  font-weight: 500;
}

/* ========== Article Section ========== */
.article-section {
  padding: 8px 0 48px;
}

.article-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 56px 64px 48px;
  max-width: 860px;
  margin: 0 auto;
}

.article-head {
  text-align: left;
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-border);
}

.article-head .article-eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  background: var(--color-accent-light);
  border-radius: var(--radius-sm);
  padding: 4px 10px;
  margin-bottom: 16px;
}

.article-head h1 {
  font-family: var(--font-serif);
  font-size: 32px;
  line-height: 1.35;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 18px;
  letter-spacing: 0.01em;
}

.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 12px;
  color: var(--color-text-secondary);
}

.article-meta .dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--color-border);
  display: inline-block;
}

.article-excerpt {
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text-secondary);
  background: #FAF8F2;
  border-left: 4px solid var(--color-accent);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 20px 24px;
  margin-bottom: 36px;
}

.article-body {
  max-width: 676px;
  margin: 0 auto;
  font-size: 17px;
  line-height: 1.85;
  color: var(--color-text);
}

.article-body > * + * {
  margin-top: 1.25em;
}

.article-body p {
  margin-bottom: 1.45em;
  text-align: justify;
}

.article-body h2,
.article-body h3,
.article-body h4 {
  font-family: var(--font-serif);
  color: var(--color-text);
  font-weight: 700;
  line-height: 1.4;
}

.article-body h2 {
  font-size: 24px;
  margin-top: 2em;
  margin-bottom: 0.8em;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border);
}

.article-body h3 {
  font-size: 20px;
  margin-top: 1.6em;
  margin-bottom: 0.6em;
}

.article-body h4 {
  font-size: 18px;
  margin-top: 1.4em;
  margin-bottom: 0.5em;
}

.article-body blockquote {
  border-left: 4px solid var(--color-accent);
  background: var(--color-accent-light);
  padding: 18px 24px;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-family: var(--font-serif);
  font-size: 16px;
  color: var(--color-text-secondary);
  margin: 1.8em 0;
}

.article-body img {
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin: 1.6em 0;
}

.article-body ul,
.article-body ol {
  padding-left: 1.6em;
  margin: 1.2em 0;
}

.article-body li {
  margin-bottom: 0.6em;
}

.article-body a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.article-body a:hover {
  color: var(--color-accent);
  text-decoration-thickness: 2px;
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
  margin: 1.6em 0;
}

.article-body th,
.article-body td {
  border: 1px solid var(--color-border);
  padding: 12px 16px;
  text-align: left;
}

.article-body th {
  background: #FAF8F2;
  font-weight: 600;
}

/* ========== Tags ========== */
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 40px;
  padding-top: 28px;
  border-top: 1px solid var(--color-border);
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  font-size: 13px;
  color: var(--color-primary);
  background: var(--color-green-light);
  border-radius: var(--radius-sm);
  font-weight: 500;
  transition: background var(--transition-fast) ease;
}

/* ========== Not Found ========== */
.article-not-found {
  text-align: center;
  padding: 80px 24px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  max-width: 640px;
  margin: 40px auto;
}

.article-not-found__icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: var(--color-accent-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
}

.article-not-found h2 {
  font-family: var(--font-serif);
  font-size: 24px;
  color: var(--color-text);
  margin-bottom: 12px;
}

.article-not-found p {
  color: var(--color-text-secondary);
  margin-bottom: 28px;
}

/* ========== Related ========== */
.related-section {
  padding: 48px 0 32px;
}

.related-section .section-head {
  margin-bottom: 24px;
}

.related-section .section-title {
  font-family: var(--font-serif);
  font-size: 22px;
  color: var(--color-text);
  font-weight: 700;
}

.related-section .section-line {
  width: 40px;
  height: 3px;
  border-radius: 2px;
  background: var(--color-accent);
  margin-top: 10px;
}

.related-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.related-card {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 14px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-fast) ease, transform var(--transition-fast) ease;
}

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

.related-card__img {
  width: 88px;
  height: 66px;
  object-fit: cover;
  border-radius: 8px;
  flex-shrink: 0;
}

.related-card__body {
  min-width: 0;
}

.related-card__body h4 {
  font-size: 15px;
  line-height: 1.4;
  font-weight: 600;
  color: var(--color-text);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 6px;
}

.related-card__body time {
  font-size: 12px;
  color: var(--color-text-secondary);
}

/* ========== Post Nav ========== */
.post-nav-section {
  padding: 24px 0 56px;
}

.post-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  max-width: 860px;
  margin: 0 auto;
}

.post-nav__link {
  flex: 1;
  display: block;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--color-text);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-fast) ease, border-color var(--transition-fast) ease;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.post-nav__link:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-lg);
  color: var(--color-primary);
}

.post-nav__label {
  display: block;
  font-size: 12px;
  color: var(--color-text-secondary);
  margin-bottom: 6px;
  letter-spacing: 0.05em;
}

.post-nav__text {
  font-weight: 500;
  color: var(--color-primary);
}

/* ========== CTA ========== */
.cta-section {
  padding: 56px 0;
}

.cta-banner {
  position: relative;
  background: var(--color-primary-dark);
  border-radius: var(--radius-lg);
  padding: 64px 56px;
  text-align: center;
  border: 1px solid rgba(196, 154, 90, 0.35);
  overflow: hidden;
}

.cta-banner::before {
  content: "";
  position: absolute;
  inset: 12px;
  border: 1px solid rgba(196, 154, 90, 0.45);
  border-radius: 14px;
  pointer-events: none;
}

.cta-banner > .container {
  position: relative;
  z-index: 1;
}

.cta-banner h2 {
  font-family: var(--font-serif);
  font-size: clamp(24px, 3vw, 34px);
  color: #F6F4ED;
  font-weight: 700;
  margin-bottom: 16px;
  line-height: 1.4;
}

.cta-banner p {
  color: rgba(246, 244, 237, 0.8);
  font-size: 16px;
  line-height: 1.7;
  max-width: 460px;
  margin: 0 auto 28px;
}

.cta-points {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 32px;
}

.cta-points span {
  font-size: 13px;
  color: rgba(246, 244, 237, 0.9);
  background: rgba(196, 154, 90, 0.15);
  border: 1px solid rgba(196, 154, 90, 0.3);
  border-radius: 999px;
  padding: 6px 18px;
}

/* ========== Buttons ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 28px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  border: 1px solid transparent;
  cursor: pointer;
  text-align: center;
  transition: background var(--transition-fast) ease, color var(--transition-fast) ease, box-shadow var(--transition-fast) ease, transform var(--transition-fast) ease;
}

.btn:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

.btn--primary {
  background: linear-gradient(135deg, #D5AE6C, var(--color-accent) 60%, #B5834A);
  color: var(--color-primary-dark);
  box-shadow: 0 2px 8px rgba(196, 154, 90, 0.3);
}

.btn--primary:hover {
  color: var(--color-primary-dark);
  filter: brightness(1.04);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(196, 154, 90, 0.35);
}

.btn--primary:active {
  transform: translateY(0);
  box-shadow: 0 1px 4px rgba(196, 154, 90, 0.2);
}

.btn--lg {
  min-height: 52px;
  padding: 12px 36px;
  font-size: 16px;
}

/* ========== Footer ========== */
.site-footer {
  background: var(--color-primary-dark);
  color: rgba(246, 244, 237, 0.8);
  padding: 64px 0 32px;
  margin-top: 48px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(246, 244, 237, 0.12);
}

.footer-brand__logo {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  color: #F6F4ED;
  margin-bottom: 14px;
  display: inline-block;
}

.footer-brand__logo .brand__suffix {
  color: var(--color-accent);
  font-size: 14px;
  margin-left: 4px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(246, 244, 237, 0.65);
  max-width: 280px;
}

.footer-title {
  font-size: 14px;
  font-weight: 600;
  color: #F6F4ED;
  margin-bottom: 20px;
  letter-spacing: 0.06em;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  font-size: 14px;
  color: rgba(246, 244, 237, 0.65);
  transition: color var(--transition-fast) ease, padding-left var(--transition-fast) ease;
}

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

.footer-contact p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(246, 244, 237, 0.65);
  margin-bottom: 16px;
}

.footer-quote {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(196, 154, 90, 0.1);
  border: 1px solid rgba(196, 154, 90, 0.2);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  margin-top: 20px;
}

.footer-quote .avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-accent);
  color: var(--color-primary-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 16px;
  font-family: var(--font-serif);
  flex-shrink: 0;
}

.footer-quote strong {
  display: block;
  font-size: 14px;
  color: #F6F4ED;
  font-weight: 600;
}

.footer-quote span {
  display: block;
  font-size: 12px;
  color: rgba(246, 244, 237, 0.55);
  margin-top: 2px;
}

.footer-bottom {
  padding-top: 24px;
  text-align: center;
  font-size: 13px;
  color: rgba(246, 244, 237, 0.45);
  letter-spacing: 0.03em;
}

/* ========== Responsive ========== */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }

  .related-list {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    overflow-x: auto;
  }
}

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

  .main-nav {
    display: none;
  }

  .mobile-tab {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--mobile-tab-height);
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: saturate(1.4) blur(10px);
    -webkit-backdrop-filter: saturate(1.4) blur(10px);
    border-top: 1px solid var(--color-border);
    z-index: 100;
  }

  .mobile-tab__item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    font-size: 11px;
    color: var(--color-text-secondary);
    min-height: 44px;
    position: relative;
    transition: color var(--transition-fast) ease;
  }

  .mobile-tab__item svg {
    width: 20px;
    height: 20px;
    stroke-width: 1.8;
  }

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

  .mobile-tab__item.active::before {
    content: "";
    position: absolute;
    top: 0;
    left: 20%;
    right: 20%;
    height: 4px;
    border-radius: 0 0 4px 4px;
    background: var(--color-accent);
  }

  .breadcrumb-wrap {
    padding-top: calc(var(--header-height) + 20px);
    padding-bottom: 12px;
  }

  .article-section {
    padding: 4px 0 32px;
  }

  .article-card {
    padding: 32px 20px 28px;
    border-radius: var(--radius-md);
    margin-left: 12px;
    margin-right: 12px;
  }

  .article-head h1 {
    font-size: 26px;
  }

  .article-excerpt {
    font-size: 15px;
    padding: 16px 18px;
  }

  .article-body {
    font-size: 16px;
    line-height: 1.8;
  }

  .related-list {
    display: flex;
    overflow-x: auto;
    gap: 16px;
    padding-bottom: 8px;
    scroll-snap-type: x mandatory;
  }

  .related-card {
    flex: 0 0 260px;
    scroll-snap-align: start;
  }

  .post-nav {
    flex-direction: column;
    gap: 12px;
  }

  .post-nav__link {
    width: 100%;
  }

  .cta-section {
    padding: 40px 12px;
  }

  .cta-banner {
    padding: 48px 24px;
    border-radius: var(--radius-md);
  }

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

  .cta-points {
    gap: 8px;
  }

  .cta-points span {
    padding: 4px 12px;
    font-size: 12px;
  }

  .site-footer {
    padding: 48px 0 96px;
    margin-top: 32px;
  }

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

  .footer-bottom {
    padding-top: 16px;
  }
}

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

  .article-card {
    margin-left: 0;
    margin-right: 0;
    border-radius: 0;
    border-left: none;
    border-right: none;
  }

  .article-head .article-eyebrow {
    font-size: 11px;
    padding: 3px 8px;
  }

  .article-meta {
    gap: 6px;
    font-size: 11px;
  }

  .related-card {
    flex-basis: 220px;
  }

  .cta-banner {
    padding: 40px 20px;
  }

  .cta-banner p {
    font-size: 14px;
  }

  .btn--lg {
    min-height: 48px;
    padding: 10px 28px;
    font-size: 15px;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}