/* roulang page: index */
/* ===== 设计变量 ===== */
:root {
  --primary: #0E6E5C;
  --primary-dark: #0A4F43;
  --accent: #C9A76B;
  --accent-light: rgba(201, 167, 107, 0.15);
  --bg-warm: #F7F4EE;
  --bg-white: #FFFFFF;
  --bg-dark: #1F2926;
  --bg-green-soft: #E8F0ED;
  --text-main: #222B27;
  --text-secondary: #5A6661;
  --text-muted: #8A958F;
  --border: #E4DFD3;
  --success: #2F8F63;
  --warning: #D8873C;
  --error: #BF4E3C;
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 8px;
  --radius-pill: 999px;
  --shadow-card: 0 8px 24px rgba(34,43,39,0.06);
  --shadow-hover: 0 12px 32px rgba(34,43,39,0.12);
  --container: 1200px;
  --spacing-section: 96px;
  --spacing-section-md: 72px;
  --spacing-section-sm: 48px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg-warm);
  color: var(--text-main);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input, select, textarea {
  font-family: inherit;
  font-size: 16px;
}

ul, ol {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  line-height: 1.3;
  font-weight: 700;
  letter-spacing: 0.01em;
}

p {
  letter-spacing: 0.02em;
}

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

.container-narrow {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== 顶部信息条 ===== */
.topbar {
  background: var(--bg-dark);
  color: rgba(255,255,255,0.85);
  font-size: 14px;
  height: 40px;
  display: flex;
  align-items: center;
}

.topbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.topbar-domain {
  font-family: "SF Mono", "Menlo", "Consolas", monospace;
  font-weight: 600;
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
  gap: 8px;
}

.topbar-domain::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--success);
  border-radius: 50%;
  display: inline-block;
}

.topbar-links {
  display: flex;
  align-items: center;
  gap: 24px;
}

.topbar-links a {
  color: rgba(255,255,255,0.85);
  font-size: 14px;
  text-decoration: none;
  transition: color 0.2s;
}

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

.topbar-links .topbar-only-mobile {
  display: none;
}

/* ===== 主导航 ===== */
.site-header {
  background: #FFFDF9;
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.logo svg {
  flex-shrink: 0;
}

.logo-text {
  font-size: 22px;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: 0.01em;
  line-height: 1.2;
}

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

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

.nav-list a {
  text-decoration: none;
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 16px;
  padding: 8px 4px;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}

.nav-list a:hover {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

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

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

.hamburger {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--bg-green-soft);
  flex-direction: column;
  gap: 5px;
}

.hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

.hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger.open span:nth-child(2) {
  opacity: 0;
}

.hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 16px;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all 0.25s ease;
  text-decoration: none;
  line-height: 1.4;
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 12px rgba(14,110,92,0.25);
}

.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(14,110,92,0.3);
}

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

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

.btn-outline:hover {
  background: rgba(255,255,255,0.15);
  color: #fff;
  border-color: #fff;
  transform: translateY(-2px);
}

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

.btn-outline-dark:hover {
  background: rgba(14,110,92,0.06);
  color: var(--primary-dark);
  border-color: var(--primary-dark);
}

.btn-block {
  width: 100%;
}

.btn-sm {
  padding: 8px 20px;
  font-size: 14px;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  min-height: 70vh;
  display: flex;
  align-items: center;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(31,41,38,0.55) 0%, rgba(31,41,38,0.35) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 780px;
  padding: 80px 0;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(6px);
  color: #fff;
  font-size: 13px;
  font-weight: 500;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255,255,255,0.25);
  margin-bottom: 24px;
  letter-spacing: 0.06em;
}

.hero-badge::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
}

.hero h1 {
  font-size: 42px;
  color: #fff;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 20px;
  letter-spacing: 0.01em;
}

.hero h1 .highlight {
  color: var(--accent);
}

.hero-sub {
  font-size: 18px;
  color: rgba(255,255,255,0.92);
  line-height: 1.7;
  max-width: 620px;
  margin-bottom: 36px;
}

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

.hero-trust {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-top: 48px;
  flex-wrap: wrap;
}

.hero-trust span {
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.85);
  font-size: 14px;
}

.hero-trust span svg {
  color: var(--accent);
}

.hero-scroll {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255,255,255,0.7);
  animation: floatDown 2.5s ease-in-out infinite;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  letter-spacing: 0.08em;
}

@keyframes floatDown {
  0%, 100% { transform: translate(-50%, 0); }
  50% { transform: translate(-50%, 10px); }
}

/* ===== 通用板块 ===== */
.section {
  padding: var(--spacing-section) 0;
}

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

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 56px;
}

.section-header h2 {
  font-size: 32px;
  color: var(--text-main);
  margin-bottom: 12px;
  position: relative;
  display: inline-block;
}

.section-header h2::after {
  content: "";
  position: absolute;
  bottom: -12px;
  left: 50%;
  transform: translateX(-50%);
  width: 48px;
  height: 3px;
  background: var(--accent);
  border-radius: 3px;
}

.section-header p {
  color: var(--text-secondary);
  font-size: 16px;
  margin-top: 24px;
}

/* ===== 痛点提问区 ===== */
.pain-section {
  background: var(--bg-white);
  border-bottom: 1px solid var(--border);
}

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

.pain-card {
  background: var(--bg-warm);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  transition: all 0.3s ease;
}

.pain-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--primary);
}

.pain-icon {
  width: 48px;
  height: 48px;
  background: var(--bg-green-soft);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--primary);
}

.pain-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text-main);
}

.pain-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
}

.pain-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--primary);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap 0.2s;
}

.pain-link:hover {
  gap: 8px;
  color: var(--primary-dark);
}

/* ===== 方案卡片区 ===== */
.solution-section {
  background: var(--bg-warm);
}

.solution-grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr 1fr;
  gap: 32px;
  align-items: center;
}

.solution-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-card);
}

.solution-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--primary);
}

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

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

.solution-card:hover .card-img img {
  transform: scale(1.04);
}

.solution-card .card-img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(31,41,38,0.15), transparent);
}

.card-body {
  padding: 28px;
}

.card-body h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 12px;
}

.card-body p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 20px;
}

.card-link {
  font-size: 15px;
  font-weight: 600;
  color: var(--primary);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.2s;
}

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

/* 中间的卡片稍微加大不同 */
.solution-card.featured {
  box-shadow: 0 12px 32px rgba(14,110,92,0.1);
  border-color: rgba(14,110,92,0.3);
}

/* ===== 成功数据区 ===== */
.stats-section {
  background: var(--bg-dark);
  color: #fff;
  position: relative;
  overflow: hidden;
}

.stats-section::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -40px;
  width: 300px;
  height: 300px;
  background: rgba(201,167,107,0.06);
  border-radius: 50%;
}

.stats-section::after {
  content: "";
  position: absolute;
  bottom: -40px;
  left: -60px;
  width: 200px;
  height: 200px;
  background: rgba(14,110,92,0.1);
  border-radius: 50%;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 48px;
  position: relative;
  z-index: 2;
}

.stat-item {
  text-align: center;
  padding: 16px;
}

.stat-number {
  font-size: 52px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.2;
  margin-bottom: 12px;
  display: block;
  font-feature-settings: "tnum";
}

.stat-label {
  font-size: 16px;
  color: rgba(255,255,255,0.85);
  font-weight: 500;
  letter-spacing: 0.04em;
}

.stat-divider {
  width: 32px;
  height: 2px;
  background: rgba(255,255,255,0.25);
  margin: 16px auto 0;
  border-radius: 2px;
}

/* ===== CTA触发区 ===== */
.cta-section {
  background: var(--bg-green-soft);
  text-align: center;
  padding: 80px 0;
  position: relative;
}

.cta-section h2 {
  font-size: 32px;
  color: var(--text-main);
  margin-bottom: 16px;
}

.cta-section p {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto 32px;
}

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

.cta-decor {
  position: absolute;
  width: 120px;
  height: 120px;
  border: 2px solid rgba(14,110,92,0.08);
  border-radius: 50%;
}

.cta-decor.d1 {
  top: 40px;
  left: 8%;
}

.cta-decor.d2 {
  bottom: 40px;
  right: 8%;
}

/* ===== 隐私说明 ===== */
.privacy-section {
  background: var(--bg-warm);
  padding: 60px 0;
  border-bottom: 1px solid var(--border);
}

.privacy-box {
  max-width: 720px;
  margin: 0 auto;
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 48px;
}

.privacy-box h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.privacy-box h3 svg {
  color: var(--primary);
}

.privacy-box ul {
  list-style: none;
}

.privacy-box ul li {
  position: relative;
  padding-left: 24px;
  margin-bottom: 12px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

.privacy-box ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
  opacity: 0.7;
}

/* ===== 最新信息 ===== */
.news-section {
  background: var(--bg-white);
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.news-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  transition: all 0.3s ease;
  text-decoration: none;
}

.news-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--primary);
}

.news-badge {
  display: inline-block;
  background: rgba(14,110,92,0.1);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  align-self: flex-start;
  margin-bottom: 16px;
  letter-spacing: 0.04em;
}

.news-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 10px;
  line-height: 1.4;
}

.news-excerpt {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex-grow: 1;
}

.news-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

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

.news-more {
  font-size: 14px;
  color: var(--primary);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap 0.2s;
}

.news-more:hover {
  gap: 8px;
}

/* 空状态 */
.empty-state {
  grid-column: 1 / -1;
  border: 2px dashed var(--border);
  border-radius: var(--radius-lg);
  padding: 60px 24px;
  text-align: center;
  background: var(--bg-warm);
  color: var(--text-muted);
  font-size: 16px;
}

.empty-state-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--bg-green-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  color: var(--primary);
}

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

.faq-list {
  max-width: 760px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: 12px;
  margin-bottom: 16px;
  overflow: hidden;
  transition: border-color 0.3s;
}

.faq-item.active {
  border-color: rgba(14,110,92,0.4);
}

.faq-question {
  width: 100%;
  padding: 20px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  text-align: left;
  transition: background 0.2s;
}

.faq-question:hover {
  background: rgba(14,110,92,0.03);
}

.faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--bg-green-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 18px;
  transition: transform 0.3s;
  flex-shrink: 0;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
  background: var(--primary);
  color: #fff;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.3s;
}

.faq-item.active .faq-answer {
  max-height: 400px;
  padding: 0 24px 20px;
}

.faq-answer p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--bg-dark);
  color: rgba(255,255,255,0.8);
  padding: 64px 0 0;
}

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

.footer-brand .logo-text {
  color: #fff;
  font-size: 20px;
  margin-bottom: 12px;
}

.footer-brand .logo-text span {
  color: var(--accent);
}

.footer-brand p {
  font-size: 14px;
  color: rgba(255,255,255,0.65);
  line-height: 1.7;
  margin-top: 16px;
}

.footer-col h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 20px;
  letter-spacing: 0.02em;
}

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

.footer-col ul a {
  color: rgba(255,255,255,0.65);
  font-size: 14px;
  text-decoration: none;
  transition: color 0.2s;
}

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

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 20px 0;
}

.footer-bottom .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom .copyright {
  font-size: 14px;
  color: rgba(255,255,255,0.5);
}

.footer-bottom .domain-info {
  font-size: 14px;
  color: rgba(255,255,255,0.4);
  font-family: monospace;
}

/* ===== 表单弹层 ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(31,41,38,0.6);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
  backdrop-filter: blur(4px);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  max-width: 560px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  padding: 40px;
  position: relative;
  box-shadow: 0 24px 64px rgba(0,0,0,0.2);
  transform: translateY(20px);
  transition: transform 0.35s ease;
}

.modal-overlay.active .modal {
  transform: translateY(0);
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-warm);
  color: var(--text-main);
  font-size: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
}

.modal-close:hover {
  background: var(--border);
}

.modal h3 {
  font-size: 26px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
}

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

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-main);
  margin-bottom: 6px;
}

.form-group .required {
  color: var(--error);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid #D8D2C4;
  border-radius: var(--radius-md);
  background: var(--bg-warm);
  color: var(--text-main);
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(14,110,92,0.15);
}

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

.form-error {
  color: var(--error);
  font-size: 13px;
  margin-top: 6px;
  display: none;
}

.form-group.error .form-error {
  display: block;
}

.form-group.error input {
  border-color: var(--error);
}

.form-privacy {
  font-size: 13px;
  color: var(--text-muted);
  text-align: center;
  margin-top: 16px;
  line-height: 1.5;
}

.modal-success {
  text-align: center;
  padding: 40px 20px;
  display: none;
}

.modal-success .success-icon {
  width: 72px;
  height: 72px;
  background: rgba(47,143,99,0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  color: var(--success);
}

.modal-success h4 {
  font-size: 22px;
  color: var(--text-main);
  margin-bottom: 12px;
}

.modal-success p {
  font-size: 14px;
  color: var(--text-secondary);
}

.modal-success.show {
  display: block;
}

.modal-form.hide {
  display: none;
}

/* ===== 浮动按钮 ===== */
.float-chat {
  display: none;
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 99;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  box-shadow: 0 8px 24px rgba(14,110,92,0.4);
  align-items: center;
  justify-content: center;
  transition: background 0.2s, transform 0.2s;
}

.float-chat:hover {
  background: var(--primary-dark);
  transform: scale(1.05);
}

/* ===== 焦点状态 ===== */
:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* ===== 移动端断点 ===== */
@media (max-width: 1024px) {
  .section {
    padding: var(--spacing-section-md) 0;
  }

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

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

  .solution-card.featured {
    grid-column: 1 / -1;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }

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

@media (max-width: 768px) {
  .topbar-links .topbar-only-mobile {
    display: inline;
  }

  .topbar-links .topbar-hide-mobile {
    display: none;
  }

  .nav-list {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: #FFFDF9;
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 24px;
    gap: 4px;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 12px 32px rgba(0,0,0,0.08);
  }

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

  .nav-list a {
    width: 100%;
    padding: 12px 0;
    font-size: 16px;
    border-bottom: none;
    border-left: 3px solid transparent;
    padding-left: 16px;
  }

  .nav-list a:hover,
  .nav-list a.active {
    border-left-color: var(--primary);
    border-bottom: none;
    background: rgba(14,110,92,0.04);
  }

  .nav-cta {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .hero {
    min-height: 60vh;
  }

  .hero h1 {
    font-size: 32px;
  }

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

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

  .float-chat {
    display: flex;
  }
}

@media (max-width: 640px) {
  .container {
    padding: 0 16px;
  }

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

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

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

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

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

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

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

  .modal {
    padding: 24px;
    width: 94%;
  }

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

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

  .privacy-box {
    padding: 28px 20px;
  }

  .cta-actions {
    flex-direction: column;
    align-items: center;
  }

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

@media (max-width: 520px) {
  .hero h1 {
    font-size: 28px;
  }

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

  .stat-number {
    font-size: 40px;
  }

  .logo-text {
    font-size: 18px;
  }

  .topbar {
    font-size: 12px;
  }
}

/* roulang page: article */
/* ========== 设计变量 ========== */
:root {
  --primary: #0E6E5C;
  --primary-dark: #0A4F43;
  --primary-light: rgba(14, 110, 92, 0.10);
  --accent: #C9A76B;
  --accent-light: rgba(201, 167, 107, 0.18);
  --bg: #F7F4EE;
  --card-bg: #FFFFFF;
  --dark-bg: #1F2926;
  --dark-bg-light: #2A3733;
  --text: #222B27;
  --text-secondary: #5A6661;
  --text-muted: #8A958F;
  --border: #E4DFD3;
  --border-light: #EDE9DF;
  --success: #2F8F63;
  --warning: #D8873C;
  --error: #BF4E3C;
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 8px;
  --shadow-xs: 0 2px 6px rgba(34,43,39,0.04);
  --shadow-sm: 0 4px 14px rgba(34,43,39,0.06);
  --shadow-md: 0 8px 24px rgba(34,43,39,0.08);
  --shadow-lg: 0 16px 40px rgba(34,43,39,0.12);
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --container-width: 1200px;
  --content-width: 780px;
  --font-family: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}
/* ========== Reset & Base ========== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-md);
}
a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover {
  color: var(--primary-dark);
  text-decoration: underline;
}
button, input, select, textarea {
  font-family: inherit;
  font-size: 1rem;
  line-height: 1.5;
  border: none;
  outline: none;
  background: none;
}
ul, ol {
  list-style-position: inside;
}
:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  border-radius: 4px;
}
/* ========== 容器 ========== */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}
/* ========== 顶部信息条 ========== */
.topbar {
  background: var(--dark-bg);
  color: rgba(255, 255, 255, 0.82);
  font-size: 13px;
  height: 40px;
  display: flex;
  align-items: center;
  letter-spacing: 0.02em;
}
.topbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}
.topbar-left {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: "SF Mono", "JetBrains Mono", Consolas, monospace;
  font-weight: 600;
  font-size: 13px;
}
.topbar-left .dot {
  width: 7px;
  height: 7px;
  background: var(--accent);
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 8px rgba(201, 167, 107, 0.6);
}
.topbar-right {
  display: flex;
  align-items: center;
  gap: 6px;
}
.topbar-right a {
  color: rgba(255, 255, 255, 0.82);
  font-size: 13px;
  padding: 4px 10px;
  border-radius: 20px;
  transition: color var(--transition), background var(--transition);
  text-decoration: none;
}
.topbar-right a:hover {
  color: var(--accent);
  background: rgba(255, 255, 255, 0.06);
}
.topbar-right .divider {
  width: 1px;
  height: 14px;
  background: rgba(255, 255, 255, 0.2);
  margin: 0 4px;
}
/* ========== 主导航 ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 253, 249, 0.97);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--transition);
}
.site-header.is-scrolled {
  box-shadow: 0 4px 20px rgba(34, 43, 39, 0.06);
}
.main-nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 24px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  text-decoration: none !important;
}
.logo svg {
  flex-shrink: 0;
}
.logo-text {
  font-size: 24px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: 0.01em;
  white-space: nowrap;
  line-height: 1.2;
}
.logo-text span {
  color: var(--primary);
}
.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}
.nav-list a {
  display: block;
  padding: 10px 18px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: 8px;
  text-decoration: none;
  transition: color var(--transition), background var(--transition);
}
.nav-list a:hover {
  color: var(--primary);
  background: var(--primary-light);
}
.nav-list a.active {
  color: var(--primary);
  background: var(--primary-light);
  font-weight: 600;
  box-shadow: inset 0 -2px 0 var(--primary);
}
.nav-cta {
  flex-shrink: 0;
}
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  font-size: 18px;
  color: var(--text);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}
.nav-toggle:hover {
  background: var(--primary-light);
}
.nav-toggle .fa-times {
  display: none;
}
.nav-toggle.is-open .fa-bars {
  display: none;
}
.nav-toggle.is-open .fa-times {
  display: inline;
}
/* ========== 按钮 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-md);
  cursor: pointer;
  text-decoration: none;
  border: 1.5px solid transparent;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 12px rgba(14, 110, 92, 0.2);
}
.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(14, 110, 92, 0.28);
  text-decoration: none;
}
.btn-primary:active {
  transform: scale(0.98);
}
.btn-outline {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-outline:hover {
  background: var(--primary-light);
  color: var(--primary-dark);
  transform: translateY(-2px);
  text-decoration: none;
}
.btn-outline-light {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.6);
}
.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  transform: translateY(-2px);
  text-decoration: none;
}
.btn-sm {
  padding: 8px 16px;
  font-size: 14px;
  border-radius: 8px;
}
.btn-block {
  width: 100%;
}
/* ========== 面包屑 ========== */
.breadcrumb {
  padding: 20px 0 8px;
  font-size: 14px;
  color: var(--text-muted);
}
.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
  list-style: none;
}
.breadcrumb li {
  display: flex;
  align-items: center;
  gap: 4px;
}
.breadcrumb li::after {
  content: "/";
  color: #BDBDB0;
  margin: 0 4px;
}
.breadcrumb li:last-child::after {
  display: none;
}
.breadcrumb a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition);
}
.breadcrumb a:hover {
  color: var(--primary);
}
.breadcrumb .current {
  color: var(--text);
  font-weight: 500;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
  max-width: 300px;
}
/* ========== 文章页布局 ========== */
.article-page {
  padding-bottom: 80px;
}
.article-hero {
  position: relative;
  background: linear-gradient(135deg, var(--dark-bg) 0%, #2A3A35 100%);
  color: #fff;
  padding: 56px 0 60px;
  margin-top: 0;
  overflow: hidden;
}
.article-hero::before {
  content: "";
  position: absolute;
  bottom: -40px;
  right: -60px;
  width: 300px;
  height: 200px;
  background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  opacity: 0.12;
  border-radius: 20px;
}
.article-hero::after {
  content: "";
  position: absolute;
  top: -30px;
  left: 20%;
  width: 120px;
  height: 120px;
  background: radial-gradient(circle, rgba(201, 167, 107, 0.18) 0%, transparent 70%);
  border-radius: 50%;
}
.article-hero .container {
  position: relative;
  z-index: 2;
}
.article-hero .breadcrumb {
  padding: 0 0 16px;
  color: rgba(255, 255, 255, 0.6);
}
.article-hero .breadcrumb a {
  color: rgba(255, 255, 255, 0.7);
}
.article-hero .breadcrumb a:hover {
  color: var(--accent);
}
.article-hero .breadcrumb li::after {
  color: rgba(255, 255, 255, 0.35);
}
.article-hero .breadcrumb .current {
  color: rgba(255, 255, 255, 0.9);
  max-width: 400px;
}
.article-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent-light);
  border: 1px solid rgba(201, 167, 107, 0.3);
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 18px;
  letter-spacing: 0.04em;
}
.article-hero h1 {
  font-size: 42px;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: 0.01em;
  color: #fff;
  margin-bottom: 20px;
  max-width: 800px;
  text-shadow: 0 2px 16px rgba(0, 0, 0, 0.18);
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.65);
}
.article-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.article-meta-item i {
  color: var(--accent);
  font-size: 13px;
}
.article-meta-item time {
  font-style: normal;
}
/* ========== 正文排版 ========== */
.article-layout {
  padding: 56px 0 0;
}
.article-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  padding: 48px 56px;
  max-width: 860px;
  margin: 0 auto;
}
.article-body {
  font-size: 16px;
  line-height: 1.9;
  color: var(--text);
}
.article-body p {
  margin-bottom: 1.6em;
}
.article-body h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--text);
  margin: 2.2em 0 0.8em;
  padding-bottom: 0.4em;
  border-bottom: 2px solid var(--primary-light);
  line-height: 1.4;
}
.article-body h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text);
  margin: 2em 0 0.7em;
  line-height: 1.4;
}
.article-body h4 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  margin: 1.8em 0 0.6em;
}
.article-body ul,
.article-body ol {
  margin-bottom: 1.6em;
  padding-left: 1.4em;
}
.article-body li {
  margin-bottom: 0.5em;
}
.article-body blockquote {
  border-left: 4px solid var(--accent);
  background: #FAF7F0;
  padding: 18px 24px;
  margin: 1.8em 0;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: var(--text-secondary);
  font-style: italic;
}
.article-body blockquote p:last-child {
  margin-bottom: 0;
}
.article-body img {
  border-radius: 12px;
  margin: 2em auto;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
}
.article-body a {
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: rgba(14, 110, 92, 0.3);
}
.article-body a:hover {
  color: var(--primary-dark);
  text-decoration-color: var(--primary-dark);
}
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 2em 0;
  font-size: 15px;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-xs);
}
.article-body table th {
  background: var(--dark-bg);
  color: #fff;
  text-align: left;
  padding: 13px 16px;
  font-weight: 600;
}
.article-body table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-light);
}
.article-body table tr:last-child td {
  border-bottom: none;
}
.article-body table tr:nth-child(even) {
  background: #FAF9F5;
}
.article-body code {
  font-family: "SF Mono", "JetBrains Mono", Consolas, monospace;
  background: #F1EFE8;
  padding: 2px 8px;
  border-radius: 5px;
  font-size: 0.9em;
  color: var(--primary-dark);
}
.article-body pre {
  background: var(--dark-bg);
  color: #E8EDEB;
  padding: 24px;
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin: 2em 0;
  line-height: 1.65;
}
.article-body pre code {
  background: transparent;
  color: inherit;
  padding: 0;
}
.article-body hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2.5em 0;
}
.article-body figure {
  margin: 2em 0;
}
.article-body figure img {
  margin: 0 auto;
}
.article-body figcaption {
  text-align: center;
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 10px;
}
/* ========== 内容未找到 ========== */
.article-notfound {
  text-align: center;
  padding: 60px 0;
  max-width: 780px;
  margin: 0 auto;
}
.article-notfound .icon-circle {
  width: 80px;
  height: 80px;
  background: var(--primary-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  font-size: 32px;
  color: var(--primary);
}
.article-notfound h2 {
  font-size: 26px;
  margin-bottom: 12px;
}
.article-notfound p {
  color: var(--text-secondary);
  margin-bottom: 28px;
  max-width: 420px;
  margin-left: auto;
  margin-right: auto;
}
/* ========== 文末标签 ========== */
.article-tags {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 500;
  border-radius: 999px;
  transition: all var(--transition);
}
.tag:hover {
  background: var(--primary);
  color: #fff;
  text-decoration: none;
}
/* ========== 延伸阅读 ========== */
.related-section {
  max-width: 1060px;
  margin: 0 auto;
  padding: 72px 24px 0;
}
.section-title {
  text-align: center;
  font-size: 30px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
  letter-spacing: 0.01em;
}
.section-subtitle {
  text-align: center;
  color: var(--text-secondary);
  font-size: 16px;
  max-width: 560px;
  margin: 0 auto 40px;
  line-height: 1.6;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.related-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  overflow: hidden;
  display: block;
  text-decoration: none !important;
  transition: all var(--transition);
  box-shadow: var(--shadow-xs);
}
.related-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(14, 110, 92, 0.3);
}
.related-thumb {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--dark-bg);
  position: relative;
}
.related-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 0;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.related-card:hover .related-thumb img {
  transform: scale(1.05);
}
.related-thumb .overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(31, 41, 38, 0.35), transparent);
}
.related-info {
  padding: 22px 24px 24px;
}
.related-info h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
}
.related-card:hover .related-info h3 {
  color: var(--primary);
}
.related-info p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap var(--transition);
}
.related-card:hover .related-link {
  gap: 12px;
  color: var(--primary-dark);
}
/* ========== CTA 区 ========== */
.article-cta {
  margin-top: 72px;
  background: var(--dark-bg);
  color: #fff;
  padding: 64px 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.article-cta::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -40px;
  width: 260px;
  height: 200px;
  background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  opacity: 0.06;
  border-radius: 24px;
}
.article-cta .cta-content {
  position: relative;
  z-index: 2;
  max-width: 680px;
  margin: 0 auto;
}
.article-cta h2 {
  font-size: 30px;
  font-weight: 700;
  margin-bottom: 14px;
}
.article-cta p {
  color: rgba(255, 255, 255, 0.72);
  font-size: 16px;
  margin-bottom: 32px;
  line-height: 1.7;
}
.article-cta .btn-wrap {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
/* ========== FAQ ========== */
.faq-section {
  max-width: 860px;
  margin: 72px auto 0;
  padding: 0 24px;
}
.faq-list {
  margin-top: 40px;
}
.faq-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 24px 28px;
  margin-bottom: 16px;
  transition: all var(--transition);
}
.faq-item.is-open {
  border-color: rgba(14, 110, 92, 0.3);
  box-shadow: var(--shadow-sm);
}
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  padding: 4px 0;
  text-align: left;
  background: none;
  border: none;
  transition: color var(--transition);
}
.faq-question:hover {
  color: var(--primary);
}
.faq-icon {
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  color: var(--primary);
  transition: transform var(--transition), background var(--transition);
}
.faq-item.is-open .faq-icon {
  transform: rotate(45deg);
  background: var(--primary);
  color: #fff;
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0;
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.75;
}
.faq-item.is-open .faq-answer {
  max-height: 300px;
  padding-top: 16px;
}
/* ========== 页脚 ========== */
.site-footer {
  background: var(--dark-bg);
  color: rgba(255, 255, 255, 0.72);
  margin-top: 72px;
  padding: 64px 0 0;
  font-size: 14px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.footer-brand p {
  margin-top: 16px;
  line-height: 1.7;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  max-width: 280px;
}
.footer-col h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 18px;
  letter-spacing: 0.02em;
}
.footer-col ul {
  list-style: none;
}
.footer-col li {
  margin-bottom: 10px;
}
.footer-col a {
  color: rgba(255, 255, 255, 0.6);
  text-decoration: none;
  transition: color var(--transition);
}
.footer-col a:hover {
  color: var(--accent);
}
.footer-bottom {
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom .copyright {
  font-weight: 500;
}
.footer-bottom .domain-info {
  font-family: monospace;
  letter-spacing: 0.02em;
}
/* ========== 表单弹层 ========== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 20, 18, 0.65);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
  backdrop-filter: blur(4px);
  opacity: 0;
  transition: opacity 0.3s ease;
}
.modal-overlay.is-open {
  display: flex;
  opacity: 1;
}
.modal {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  max-width: 560px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  padding: 40px;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.25);
  position: relative;
  transform: translateY(20px);
  transition: transform 0.3s ease;
}
.modal-overlay.is-open .modal {
  transform: translateY(0);
}
.modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg);
  border: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
}
.modal-close:hover {
  background: var(--primary-light);
  color: var(--primary);
  transform: rotate(90deg);
}
.modal h3 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
}
.modal .modal-desc {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 28px;
}
.form-group {
  margin-bottom: 20px;
}
.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text);
}
.form-group label .required {
  color: var(--error);
  margin-left: 2px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  height: 46px;
  border: 1.5px solid #D8D2C4;
  border-radius: 10px;
  padding: 0 16px;
  font-size: 15px;
  color: var(--text);
  background: #FDFCFA;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-group textarea {
  height: 110px;
  padding: 14px 16px;
  resize: vertical;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(14, 110, 92, 0.12);
  outline: none;
  background: #fff;
}
.form-error {
  display: none;
  font-size: 13px;
  color: var(--error);
  margin-top: 6px;
}
.form-group.has-error input,
.form-group.has-error textarea {
  border-color: var(--error);
}
.form-group.has-error .form-error {
  display: block;
}
.form-bottom-tip {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 14px;
  text-align: center;
}
.form-success {
  display: none;
  text-align: center;
  padding: 30px 0;
}
.form-success.show {
  display: block;
}
.form-success .success-icon {
  width: 72px;
  height: 72px;
  background: var(--primary-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
  color: var(--primary);
  margin: 0 auto 20px;
}
.form-success h4 {
  font-size: 22px;
  margin-bottom: 10px;
}
.form-success p {
  color: var(--text-secondary);
  font-size: 15px;
}
/* ========== 移动端关闭按钮 ========== */
.mobile-floating-btn {
  display: none;
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 99;
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  box-shadow: 0 6px 24px rgba(14, 110, 92, 0.35);
  align-items: center;
  justify-content: center;
  font-size: 20px;
  cursor: pointer;
  border: none;
  transition: transform var(--transition), background var(--transition);
}
.mobile-floating-btn:hover {
  background: var(--primary-dark);
  transform: scale(1.06);
}
/* ========== 响应式 ========== */
@media (max-width: 1023px) {
  .nav-toggle {
    display: inline-flex;
  }
  .nav-list {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #FFFDF9;
    flex-direction: column;
    align-items: stretch;
    padding: 12px 20px 20px;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 12px 24px rgba(34, 43, 39, 0.08);
    display: none;
    gap: 2px;
  }
  .nav-list.is-open {
    display: flex;
  }
  .nav-list a {
    padding: 14px 16px;
    font-size: 16px;
    border-radius: 10px;
  }
  .nav-list a.active {
    box-shadow: inset 3px 0 0 var(--primary);
  }
  .nav-cta {
    display: none;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .article-card {
    padding: 36px 32px;
  }
  .article-hero h1 {
    font-size: 34px;
  }
}
@media (max-width: 767px) {
  .container {
    padding: 0 16px;
  }
  .topbar-right .hide-sm {
    display: none;
  }
  .topbar-right .divider {
    display: none;
  }
  .article-hero {
    padding: 40px 0 44px;
  }
  .article-hero h1 {
    font-size: 28px;
    line-height: 1.3;
  }
  .article-meta {
    gap: 10px;
    font-size: 13px;
  }
  .article-card {
    padding: 24px 20px;
    border-radius: 12px;
  }
  .article-body {
    font-size: 15px;
    line-height: 1.85;
  }
  .article-body h2 {
    font-size: 21px;
  }
  .article-body h3 {
    font-size: 18px;
  }
  .related-grid {
    grid-template-columns: 1fr;
  }
  .related-section {
    padding: 48px 16px 0;
  }
  .section-title {
    font-size: 24px;
  }
  .article-cta {
    padding: 48px 16px;
  }
  .article-cta h2 {
    font-size: 24px;
  }
  .article-cta .btn-wrap {
    flex-direction: column;
    align-items: center;
  }
  .article-cta .btn {
    width: 100%;
    max-width: 300px;
  }
  .faq-section {
    padding: 0 16px;
    margin-top: 48px;
  }
  .faq-item {
    padding: 20px;
  }
  .faq-question {
    font-size: 15px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  .mobile-floating-btn {
    display: flex;
  }
  .modal {
    padding: 28px 24px;
  }
  .breadcrumb .current {
    max-width: 180px;
  }
}
@media (max-width: 520px) {
  .logo-text {
    font-size: 20px;
  }
  .logo svg {
    width: 28px;
    height: 28px;
  }
  .main-nav-wrap {
    height: 66px;
  }
  .article-hero h1 {
    font-size: 24px;
  }
  .article-card {
    padding: 20px 16px;
  }
  .related-card .related-info {
    padding: 18px;
  }
  .section-subtitle {
    font-size: 14px;
  }
}

/* roulang page: category1 */
*,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        :root {
            --primary: #0E6E5C;
            --primary-dark: #0A4F43;
            --primary-light: rgba(14, 110, 92, .08);
            --accent: #C9A76B;
            --accent-light: rgba(201, 167, 107, .14);
            --bg: #F7F4EE;
            --card-bg: #FFFFFF;
            --dark-bg: #1F2926;
            --text: #222B27;
            --text-secondary: #5A6661;
            --text-weak: #8A958F;
            --border: #E4DFD3;
            --success: #2F8F63;
            --warning: #D8873C;
            --error: #BF4E3C;
            --radius-lg: 16px;
            --radius-md: 10px;
            --radius-pill: 999px;
            --shadow-default: 0 8px 24px rgba(34, 43, 39, .06);
            --shadow-hover: 0 12px 32px rgba(34, 43, 39, .12);
            --container: 1200px;
            --space-section: 96px;
            --font-family: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        }
        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.7;
            background: var(--bg);
            color: var(--text);
            -webkit-font-smoothing: antialiased;
            letter-spacing: .02em;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color .2s ease, box-shadow .2s ease;
        }
        a:hover {
            color: var(--primary-dark);
            text-decoration: underline;
        }
        a:focus-visible,
        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-lg);
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
            font-size: inherit;
        }
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: 15px;
            border-radius: var(--radius-md);
            border: 1px solid #D8D2C4;
            padding: 12px 14px;
            width: 100%;
            background: #fff;
            transition: border-color .2s, box-shadow .2s;
        }
        input:focus,
        select:focus,
        textarea:focus {
            border-color: var(--primary);
            outline: none;
            box-shadow: 0 0 0 3px rgba(14, 110, 92, .12);
        }
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* Topbar */
        .topbar {
            background: var(--dark-bg);
            color: rgba(255, 255, 255, .88);
            font-size: 13px;
            height: 38px;
            display: flex;
            align-items: center;
        }
        .topbar-inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
        }
        .topbar-domain {
            font-weight: 600;
            letter-spacing: .08em;
            font-size: 13px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .topbar-domain::before {
            content: '';
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--success);
            display: inline-block;
        }
        .topbar-links {
            display: flex;
            gap: 20px;
        }
        .topbar-links a {
            color: rgba(255, 255, 255, .8);
            font-size: 13px;
            transition: color .2s;
        }
        .topbar-links a:hover {
            color: var(--accent);
            text-decoration: none;
        }

        /* Header */
        .site-header {
            background: #FFFDF9;
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 12px rgba(34, 43, 39, .03);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 20px;
        }
        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            text-decoration: none !important;
            flex-shrink: 0;
        }
        .logo svg {
            width: 34px;
            height: 34px;
        }
        .logo-text {
            font-size: 21px;
            font-weight: 700;
            color: var(--text);
            letter-spacing: .01em;
            line-height: 1.2;
            white-space: nowrap;
        }
        .logo-accent {
            color: var(--primary);
        }
        .nav-list {
            display: flex;
            list-style: none;
            gap: 8px;
        }
        .nav-list a {
            display: block;
            padding: 10px 16px;
            border-radius: var(--radius-md);
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            text-decoration: none;
            transition: background .2s, color .2s, box-shadow .2s;
        }
        .nav-list a:hover {
            background: var(--primary-light);
            color: var(--primary);
            text-decoration: none;
        }
        .nav-list a.active {
            color: var(--primary);
            background: var(--primary-light);
            font-weight: 600;
            box-shadow: inset 0 -2px 0 var(--primary);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            width: 44px;
            height: 44px;
            padding: 10px;
            justify-content: center;
            align-items: center;
            border-radius: var(--radius-md);
            background: transparent;
            border: 1px solid var(--border);
            transition: background .2s;
        }
        .nav-toggle:hover {
            background: var(--primary-light);
        }
        .nav-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: transform .3s, opacity .3s;
        }
        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* Buttons */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: var(--radius-md);
            font-size: 15px;
            font-weight: 600;
            text-decoration: none !important;
            transition: all .2s ease;
            border: 1px solid transparent;
            line-height: 1.4;
            min-height: 44px;
            cursor: pointer;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 12px rgba(14, 110, 92, .18);
        }
        .btn-primary:hover {
            background: var(--primary-dark);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(14, 110, 92, .24);
        }
        .btn-primary:active {
            transform: scale(.98);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border-color: var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary-light);
            color: var(--primary-dark);
            border-color: var(--primary-dark);
            transform: translateY(-2px);
        }
        .btn-outline-light {
            background: transparent;
            color: #fff;
            border-color: rgba(255, 255, 255, .6);
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, .12);
            color: #fff;
            border-color: #fff;
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 14px;
            min-height: 40px;
        }
        .btn-block {
            width: 100%;
        }

        /* Breadcrumb */
        .breadcrumb {
            background: var(--bg);
            padding: 16px 0;
            border-bottom: 1px solid var(--border);
        }
        .breadcrumb ol {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 14px;
            color: var(--text-weak);
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .breadcrumb li+li::before {
            content: '›';
            color: var(--text-weak);
        }
        .breadcrumb a {
            color: var(--text-secondary);
            text-decoration: none;
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb [aria-current="page"] {
            color: var(--primary);
            font-weight: 500;
        }

        /* Page Hero */
        .page-hero {
            background: linear-gradient(rgba(14, 78, 67, .62), rgba(10, 59, 51, .55)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            padding: 84px 0 72px;
            color: #fff;
            text-align: center;
        }
        .page-hero .container {
            max-width: 860px;
        }
        .page-hero h1 {
            font-size: 42px;
            font-weight: 700;
            line-height: 1.2;
            letter-spacing: .01em;
            margin-bottom: 18px;
        }
        .page-hero p {
            font-size: 17px;
            line-height: 1.7;
            color: rgba(255, 255, 255, .92);
            max-width: 680px;
            margin: 0 auto 28px;
        }
        .hero-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* Section Common */
        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 48px;
        }
        .section-head .badge {
            margin-bottom: 12px;
        }
        .section-head h2 {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: .01em;
            margin-bottom: 12px;
        }
        .section-head p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .badge {
            display: inline-block;
            background: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: var(--radius-pill);
            letter-spacing: .04em;
        }
        .badge-accent {
            background: var(--accent-light);
            color: #8a6a32;
        }

        /* About Section */
        .about-section {
            padding: var(--space-section) 0;
            background: var(--card-bg);
        }
        .about-grid {
            display: grid;
            grid-template-columns: 1.05fr .95fr;
            gap: 56px;
            align-items: center;
        }
        .about-text {
            padding-right: 16px;
        }
        .about-text .badge {
            margin-bottom: 16px;
        }
        .about-text h2 {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 16px;
        }
        .about-text p {
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-secondary);
            margin-bottom: 16px;
        }
        .about-text .btn {
            margin-top: 8px;
        }
        .about-media img {
            width: 100%;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-default);
            border: 1px solid var(--border);
        }

        /* Coverage Section */
        .coverage-section {
            padding: var(--space-section) 0;
            background: var(--bg);
        }
        .coverage-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
            max-width: 960px;
            margin: 0 auto;
        }
        .coverage-item {
            display: flex;
            gap: 22px;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 26px 28px;
            transition: transform .25s, box-shadow .25s, border-color .25s;
        }
        .coverage-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--primary);
        }
        .coverage-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            background: var(--primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            color: var(--primary);
        }
        .coverage-icon svg {
            width: 24px;
            height: 24px;
        }
        .coverage-body h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 6px;
        }
        .coverage-body p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.6;
            max-width: 720px;
        }

        /* Features Section */
        .features-section {
            padding: var(--space-section) 0;
            background: var(--card-bg);
        }
        .features-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 32px;
            max-width: 960px;
            margin: 0 auto;
        }
        .feature-card {
            background: var(--bg);
            border: 1px solid var(--border);
            border-top: 3px solid var(--primary);
            border-radius: var(--radius-lg);
            padding: 30px;
            transition: transform .25s, box-shadow .25s;
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .feature-card h3 {
            font-size: 19px;
            font-weight: 600;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .feature-card h3::before {
            content: '';
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--accent);
            display: inline-block;
            flex-shrink: 0;
        }
        .feature-card p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        /* Stats Section */
        .stats-section {
            background: var(--dark-bg);
            padding: 72px 0;
            color: #fff;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
        }
        .stat-item {
            text-align: center;
            padding: 20px 12px;
            border-right: 1px solid rgba(255, 255, 255, .08);
        }
        .stat-item:last-child {
            border-right: none;
        }
        .stat-number {
            display: block;
            font-size: 52px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.1;
            margin-bottom: 10px;
            letter-spacing: .02em;
        }
        .stat-label {
            font-size: 15px;
            color: rgba(255, 255, 255, .75);
        }

        /* FAQ Section */
        .faq-section {
            padding: var(--space-section) 0;
            background: var(--bg);
        }
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: border-color .2s, box-shadow .2s;
        }
        .faq-item.open {
            border-color: var(--primary);
            box-shadow: var(--shadow-default);
        }
        .faq-question {
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            text-align: left;
            min-height: 44px;
            gap: 16px;
        }
        .faq-question .faq-icon {
            position: relative;
            width: 20px;
            height: 20px;
            flex-shrink: 0;
        }
        .faq-question .faq-icon::before,
        .faq-question .faq-icon::after {
            content: '';
            position: absolute;
            background: var(--primary);
            border-radius: 2px;
            transition: transform .3s;
        }
        .faq-question .faq-icon::before {
            width: 14px;
            height: 2px;
            top: 9px;
            left: 3px;
        }
        .faq-question .faq-icon::after {
            width: 2px;
            height: 14px;
            top: 3px;
            left: 9px;
        }
        .faq-item.open .faq-icon::after {
            transform: scaleY(0);
        }
        .faq-answer {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease, padding .35s ease;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 22px;
        }
        .faq-answer p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* CTA Section */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: #fff;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -80px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(255, 255, 255, .04);
            pointer-events: none;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 14px;
        }
        .cta-section p {
            font-size: 16px;
            color: rgba(255, 255, 255, .86);
            max-width: 620px;
            margin: 0 auto 28px;
        }
        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* Footer */
        .site-footer {
            background: var(--dark-bg);
            color: rgba(255, 255, 255, .72);
            padding: 64px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 44px;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(255, 255, 255, .6);
            margin-top: 14px;
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-col a {
            font-size: 14px;
            color: rgba(255, 255, 255, .65);
            text-decoration: none;
            transition: color .2s;
        }
        .footer-col a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding: 20px 0;
            background: rgba(0, 0, 0, .15);
        }
        .footer-bottom .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 13px;
            color: rgba(255, 255, 255, .5);
        }
        .domain-info {
            letter-spacing: .04em;
        }

        /* Modal */
        .modal-overlay {
            position: fixed;
            inset: 0;
            background: rgba(15, 25, 22, .6);
            z-index: 200;
            display: flex;
            align-items: center;
            justify-content: center;
            opacity: 0;
            visibility: hidden;
            transition: opacity .3s, visibility .3s;
        }
        .modal-overlay.show {
            opacity: 1;
            visibility: visible;
        }
        .modal {
            background: #fff;
            border-radius: var(--radius-lg);
            width: 560px;
            max-width: 92%;
            max-height: 85vh;
            overflow-y: auto;
            padding: 36px;
            position: relative;
            box-shadow: 0 24px 64px rgba(0, 0, 0, .28);
            transform: translateY(20px);
            transition: transform .3s;
        }
        .modal-overlay.show .modal {
            transform: translateY(0);
        }
        .modal-close {
            position: absolute;
            top: 16px;
            right: 16px;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--bg);
            color: var(--text);
            font-size: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background .2s;
            border: none;
            cursor: pointer;
            line-height: 1;
        }
        .modal-close:hover {
            background: var(--border);
        }
        .modal h3 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .modal>p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 22px;
        }
        .form-group {
            margin-bottom: 18px;
        }
        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--text);
        }
        .form-group .required {
            color: var(--error);
        }
        .form-privacy {
            font-size: 12px;
            color: var(--text-weak);
            text-align: center;
            margin-top: 12px;
            line-height: 1.5;
        }
        .form-success {
            text-align: center;
            padding: 32px 12px;
        }
        .form-success .success-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--success);
            color: #fff;
            font-size: 26px;
            margin-bottom: 16px;
        }
        .form-success h4 {
            font-size: 20px;
            margin-bottom: 8px;
        }
        .form-success p {
            font-size: 14px;
            color: var(--text-secondary);
        }

        /* Mobile */
        @media (max-width: 1023px) {
            .nav-list {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: #FFFDF9;
                flex-direction: column;
                padding: 16px 0;
                gap: 4px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 16px 32px rgba(34, 43, 39, .08);
            }
            .nav-list.open {
                display: flex;
            }
            .nav-list a {
                padding: 14px 24px;
                border-radius: 0;
                font-size: 16px;
                border-left: 3px solid transparent;
            }
            .nav-list a.active {
                border-left-color: var(--primary);
                box-shadow: none;
                background: var(--primary-light);
            }
            .nav-toggle {
                display: flex;
            }
            .header-actions .btn {
                display: none;
            }
            .about-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .about-text {
                padding-right: 0;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .stat-item {
                border-right: none;
                border-bottom: 1px solid rgba(255, 255, 255, .08);
                padding: 20px 8px;
            }
            .stat-item:nth-child(3),
            .stat-item:nth-child(4) {
                border-bottom: none;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 767px) {
            :root {
                --space-section: 56px;
            }
            .page-hero {
                padding: 56px 0 48px;
            }
            .page-hero h1 {
                font-size: 32px;
            }
            .page-hero p {
                font-size: 15px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: center;
                gap: 12px;
            }
            .hero-actions .btn {
                width: 100%;
                max-width: 320px;
            }
            .section-head h2 {
                font-size: 26px;
            }
            .features-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .coverage-item {
                flex-direction: column;
                gap: 14px;
                padding: 22px;
            }
            .coverage-icon {
                width: 42px;
                height: 42px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stat-number {
                font-size: 38px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom .container {
                flex-direction: column;
                text-align: center;
            }
            .modal {
                padding: 28px 22px;
            }
            .cta-actions {
                flex-direction: column;
                align-items: center;
            }
            .cta-actions .btn {
                width: 100%;
                max-width: 320px;
            }
        }
        @media (max-width: 520px) {
            .topbar-links a:first-child {
                display: none;
            }
            .topbar-links a {
                font-size: 12px;
            }
            .logo-text {
                font-size: 18px;
            }
            .logo svg {
                width: 28px;
                height: 28px;
            }
            .section-head p {
                font-size: 15px;
            }
            .coverage-item {
                padding: 18px;
            }
            .feature-card {
                padding: 22px;
            }
            .page-hero h1 {
                font-size: 28px;
            }
        }

/* roulang page: category2 */
:root {
  --primary: #0E6E5C;
  --primary-dark: #0A4F43;
  --primary-light: #E8F3F0;
  --accent: #C9A76B;
  --accent-light: #F5EED9;
  --bg-warm: #F7F4EE;
  --bg-card: #FFFFFF;
  --bg-dark: #1F2926;
  --text-main: #222B27;
  --text-secondary: #5A6661;
  --text-weak: #8A958F;
  --border: #E4DFD3;
  --border-light: #EEE9DF;
  --success: #2F8F63;
  --warning: #D8873C;
  --error: #BF4E3C;
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-pill: 999px;
  --shadow-default: 0 8px 24px rgba(34,43,39,0.06);
  --shadow-hover: 0 12px 32px rgba(34,43,39,0.12);
  --shadow-modal: 0 24px 60px rgba(31,41,38,0.25);
  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --spacing-section: 96px;
  --spacing-section-md: 72px;
  --spacing-section-sm: 48px;
  --container-width: 1200px;
  --transition: all 0.3s ease;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { font-family: var(--font-sans); font-size: 16px; line-height: 1.7; color: var(--text-main); background: var(--bg-warm); letter-spacing: 0.02em; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-dark); }
button { font-family: var(--font-sans); cursor: pointer; border: none; background: none; }
input, select, textarea { font-family: var(--font-sans); font-size: 15px; }
ul, ol { list-style: none; }
.container { max-width: var(--container-width); margin: 0 auto; padding: 0 24px; }
.section-padding { padding: var(--spacing-section) 0; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 28px; border-radius: var(--radius-md); font-size: 15px; font-weight: 600; letter-spacing: 0.03em; transition: var(--transition); cursor: pointer; border: 1px solid transparent; line-height: 1.4; min-height: 44px; }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 4px 12px rgba(14,110,92,0.18); }
.btn-primary:hover { background: var(--primary-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 20px rgba(14,110,92,0.25); }
.btn-primary:active { transform: scale(0.98); }
.btn-outline { background: transparent; border-color: var(--primary); color: var(--primary); }
.btn-outline:hover { background: rgba(14,110,92,0.06); color: var(--primary-dark); border-color: var(--primary-dark); }
.btn-outline:active { transform: scale(0.98); }
.btn-light { background: rgba(255,255,255,0.15); border-color: rgba(255,255,255,0.45); color: #fff; backdrop-filter: blur(4px); }
.btn-light:hover { background: rgba(255,255,255,0.25); border-color: #fff; color: #fff; transform: translateY(-2px); }
.btn-block { width: 100%; }

.badge { display: inline-flex; align-items: center; padding: 4px 14px; border-radius: var(--radius-pill); font-size: 12px; font-weight: 600; letter-spacing: 0.08em; background: var(--primary-light); color: var(--primary); }
.badge-gold { background: var(--accent-light); color: #9A7A3E; }

.topbar { background: var(--bg-dark); min-height: 38px; display: flex; align-items: center; }
.topbar-inner { display: flex; align-items: center; justify-content: space-between; width: 100%; max-width: var(--container-width); margin: 0 auto; padding: 0 24px; }
.topbar-domain { color: rgba(255,255,255,0.75); font-size: 13px; font-weight: 500; letter-spacing: 0.04em; display: inline-flex; align-items: center; gap: 8px; }
.topbar-domain::before { content: ""; width: 7px; height: 7px; background: var(--success); border-radius: 50%; display: inline-block; }
.topbar-links { display: flex; gap: 20px; }
.topbar-links a { color: rgba(255,255,255,0.9); font-size: 13px; font-weight: 500; }
.topbar-links a:hover { color: var(--accent); }

.main-nav { background: #FFFDF9; border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 1000; box-shadow: 0 2px 8px rgba(34,43,39,0.04); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; min-height: 72px; gap: 24px; }
.logo { display: inline-flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo svg { flex-shrink: 0; }
.logo-text { font-size: 22px; font-weight: 700; color: var(--text-main); letter-spacing: 0.01em; }
.logo-text span { color: var(--accent); }
.nav-list { display: flex; align-items: center; gap: 4px; }
.nav-list a { display: block; padding: 10px 18px; color: var(--text-secondary); font-size: 15px; font-weight: 500; border-radius: var(--radius-md); position: relative; transition: var(--transition); }
.nav-list a:hover { color: var(--primary); background: rgba(14,110,92,0.05); }
.nav-list a.active { color: var(--primary); font-weight: 600; }
.nav-list a.active::after { content: ""; position: absolute; left: 18px; right: 18px; bottom: 4px; height: 2px; background: var(--primary); border-radius: 2px; }
.nav-cta { margin-left: 8px; padding: 10px 22px; min-height: 42px; }
.hamburger { display: none; width: 44px; height: 44px; border-radius: var(--radius-md); align-items: center; justify-content: center; flex-direction: column; gap: 5px; background: rgba(14,110,92,0.06); transition: var(--transition); }
.hamburger:hover { background: rgba(14,110,92,0.12); }
.hamburger span { display: block; width: 20px; height: 2px; background: var(--primary); border-radius: 2px; transition: var(--transition); }
.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; transform: translateX(-8px); }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.breadcrumb { padding: 16px 0 0; font-size: 14px; color: var(--text-weak); }
.breadcrumb-list { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; }
.breadcrumb-list li { display: flex; align-items: center; gap: 8px; }
.breadcrumb-list li + li::before { content: "›"; color: #BCC5BF; font-size: 16px; }
.breadcrumb-list a { color: var(--text-secondary); }
.breadcrumb-list a:hover { color: var(--primary); }
.breadcrumb-list li:last-child { color: var(--text-main); font-weight: 500; }

.intro-section { position: relative; padding: 56px 0 64px; }
.intro-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.intro-media { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-hover); border: 1px solid var(--border-light); }
.intro-media img { width: 100%; height: 340px; object-fit: cover; }
.intro-content h1 { font-size: 42px; font-weight: 700; line-height: 1.25; margin-bottom: 20px; color: var(--text-main); letter-spacing: 0.01em; position: relative; padding-left: 18px; }
.intro-content h1::before { content: ""; position: absolute; left: 0; top: 6px; bottom: 6px; width: 4px; border-radius: 4px; background: var(--accent); }
.intro-content p { font-size: 16px; color: var(--text-secondary); margin-bottom: 16px; line-height: 1.8; }
.intro-btns { display: flex; gap: 16px; margin-top: 28px; flex-wrap: wrap; }
.intro-meta { display: flex; gap: 8px; margin-top: 20px; flex-wrap: wrap; }

.guide-section { background: var(--bg-card); border-radius: 24px; margin: 0 0 16px; padding: 64px 0; border-top: 1px solid var(--border-light); border-bottom: 1px solid var(--border-light); }
.section-header { text-align: center; max-width: 640px; margin: 0 auto 48px; }
.section-header .btn-section-label { display: inline-block; padding: 4px 16px; border-radius: var(--radius-pill); font-size: 13px; font-weight: 600; letter-spacing: 0.06em; color: var(--primary); background: var(--primary-light); margin-bottom: 14px; }
.section-header h2 { font-size: 32px; font-weight: 700; line-height: 1.3; margin-bottom: 12px; }
.section-header p { font-size: 16px; color: var(--text-secondary); line-height: 1.7; }
.guide-list { display: flex; flex-direction: column; gap: 40px; }
.guide-item { display: flex; align-items: center; gap: 48px; background: #FCFBF8; border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 32px; transition: var(--transition); }
.guide-item:hover { box-shadow: var(--shadow-hover); border-color: rgba(14,110,92,0.3); transform: translateY(-4px); }
.guide-item.reverse { flex-direction: row-reverse; }
.guide-media { flex: 1; border-radius: 12px; overflow: hidden; border: 1px solid var(--border-light); }
.guide-media img { width: 100%; height: 260px; object-fit: cover; transition: transform 0.5s ease; }
.guide-item:hover .guide-media img { transform: scale(1.02); }
.guide-content { flex: 1; padding: 8px 8px 8px 0; }
.guide-item.reverse .guide-content { padding: 8px 0 8px 8px; }
.guide-content .badge { margin-bottom: 14px; }
.guide-content h3 { font-size: 22px; font-weight: 600; margin-bottom: 12px; line-height: 1.4; }
.guide-content p { font-size: 15px; color: var(--text-secondary); line-height: 1.75; margin-bottom: 16px; }
.guide-link { display: inline-flex; align-items: center; gap: 6px; font-weight: 600; font-size: 15px; color: var(--primary); }
.guide-link:hover { color: var(--primary-dark); gap: 10px; }

.steps-section { padding: var(--spacing-section) 0; }
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 16px; }
.step-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 28px 22px; text-align: center; position: relative; transition: var(--transition); }
.step-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: rgba(14,110,92,0.2); }
.step-num { font-size: 36px; font-weight: 800; color: var(--bg-warm); -webkit-text-stroke: 1px var(--primary); display: block; margin-bottom: 10px; line-height: 1; letter-spacing: 0.04em; }
.step-card h3 { font-size: 17px; font-weight: 600; margin-bottom: 8px; }
.step-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }
.step-arrow { position: absolute; right: -16px; top: 50%; transform: translateY(-50%); width: 28px; height: 28px; background: var(--primary); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 14px; z-index: 2; box-shadow: 0 4px 10px rgba(14,110,92,0.25); }
.step-card:last-child .step-arrow { display: none; }

.faq-section { background: var(--bg-card); border-radius: 24px; padding: 64px 0; border-top: 1px solid var(--border-light); border-bottom: 1px solid var(--border-light); }
.faq-wrap { max-width: 780px; margin: 0 auto; }
.faq-item { background: #FCFBF8; border: 1px solid var(--border); border-radius: 12px; margin-bottom: 16px; overflow: hidden; transition: var(--transition); }
.faq-item.active { border-color: rgba(14,110,92,0.35); box-shadow: var(--shadow-default); }
.faq-question { width: 100%; text-align: left; padding: 20px 24px; font-size: 16px; font-weight: 600; color: var(--text-main); display: flex; align-items: center; justify-content: space-between; gap: 16px; cursor: pointer; min-height: 56px; transition: var(--transition); }
.faq-question:hover { color: var(--primary); }
.faq-icon { flex-shrink: 0; width: 28px; height: 28px; border-radius: 50%; background: var(--primary-light); display: flex; align-items: center; justify-content: center; font-size: 18px; color: var(--primary); transition: var(--transition); font-weight: 400; }
.faq-item.active .faq-icon { transform: rotate(45deg); background: var(--primary); color: #fff; }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.35s ease; }
.faq-answer-inner { padding: 0 24px 20px; font-size: 15px; color: var(--text-secondary); line-height: 1.75; }

.cta-section { padding: 64px 0 96px; }
.cta-block { background: var(--bg-dark); border-radius: 20px; padding: 56px 48px; text-align: center; position: relative; overflow: hidden; }
.cta-block::before { content: ""; position: absolute; top: -60px; right: -60px; width: 220px; height: 220px; background: radial-gradient(circle, rgba(201,167,107,0.15) 0%, transparent 70%); border-radius: 50%; }
.cta-block::after { content: ""; position: absolute; bottom: -80px; left: -80px; width: 280px; height: 280px; background: radial-gradient(circle, rgba(14,110,92,0.18) 0%, transparent 70%); border-radius: 50%; }
.cta-block h2 { font-size: 30px; font-weight: 700; color: #fff; margin-bottom: 12px; position: relative; z-index: 2; }
.cta-block p { font-size: 16px; color: rgba(255,255,255,0.8); max-width: 500px; margin: 0 auto 28px; position: relative; z-index: 2; }
.cta-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; position: relative; z-index: 2; }

.site-footer { background: var(--bg-dark); padding: 64px 0 0; color: rgba(255,255,255,0.75); }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 48px; }
.footer-brand .logo { color: #fff; }
.footer-brand p { font-size: 14px; color: rgba(255,255,255,0.55); margin-top: 16px; line-height: 1.7; max-width: 320px; }
.footer-col h4 { color: #fff; font-size: 15px; font-weight: 600; margin-bottom: 18px; letter-spacing: 0.04em; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a { color: rgba(255,255,255,0.55); font-size: 14px; }
.footer-col ul a:hover { color: var(--accent); padding-left: 4px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding: 20px 0; }
.footer-bottom .container { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 8px; }
.footer-bottom span { font-size: 13px; color: rgba(255,255,255,0.4); }
.copyright { color: rgba(255,255,255,0.5); }
.domain-info { font-family: ui-monospace, menlo, monospace; font-size: 13px; }

.modal-overlay { position: fixed; inset: 0; z-index: 2000; background: rgba(31,41,38,0.6); display: flex; align-items: center; justify-content: center; opacity: 0; visibility: hidden; transition: opacity 0.3s ease, visibility 0.3s ease; }
.modal-overlay.active { opacity: 1; visibility: visible; }
.modal-dialog { background: #fff; border-radius: var(--radius-lg); width: 560px; max-width: 92%; max-height: 85vh; overflow-y: auto; padding: 36px; box-shadow: var(--shadow-modal); transform: translateY(20px); transition: transform 0.3s ease; position: relative; }
.modal-overlay.active .modal-dialog { transform: translateY(0); }
.modal-close { position: absolute; top: 20px; right: 20px; width: 40px; height: 40px; border-radius: 50%; background: var(--bg-warm); color: var(--text-secondary); font-size: 22px; display: flex; align-items: center; justify-content: center; transition: var(--transition); line-height: 1; }
.modal-close:hover { background: var(--border); transform: rotate(90deg); }
.modal-header { margin-bottom: 24px; }
.modal-header h3 { font-size: 24px; font-weight: 700; margin-bottom: 6px; }
.modal-header p { font-size: 14px; color: var(--text-secondary); }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 14px; font-weight: 500; color: var(--text-main); margin-bottom: 6px; }
.form-group .required { color: var(--error); margin-left: 2px; }
.form-input { width: 100%; height: 44px; border: 1px solid #D8D2C4; border-radius: var(--radius-md); padding: 0 14px; font-size: 15px; color: var(--text-main); background: #FAFAF7; transition: var(--transition); }
.form-input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(14,110,92,0.12); background: #fff; }
.form-textarea { width: 100%; min-height: 96px; border: 1px solid #D8D2C4; border-radius: var(--radius-md); padding: 12px 14px; font-size: 15px; color: var(--text-main); background: #FAFAF7; resize: vertical; transition: var(--transition); }
.form-textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(14,110,92,0.12); background: #fff; }
.form-input .error, .form-textarea.error { border-color: var(--error); }
.form-error-msg { font-size: 13px; color: var(--error); margin-top: 4px; display: none; }
.form-group.has-error .form-error-msg { display: block; }
.form-submit { margin-top: 4px; }
.form-privacy { font-size: 12px; color: var(--text-weak); text-align: center; margin-top: 12px; }

.float-consult { position: fixed; right: 20px; bottom: 20px; z-index: 1500; display: none; width: 52px; height: 52px; border-radius: 50%; background: var(--primary); color: #fff; align-items: center; justify-content: center; box-shadow: 0 8px 24px rgba(14,110,92,0.35); transition: var(--transition); font-size: 20px; }
.float-consult:hover { background: var(--primary-dark); transform: scale(1.05); }
.float-consult .close-float { position: absolute; top: -6px; right: -6px; width: 20px; height: 20px; border-radius: 50%; background: var(--text-weak); color: #fff; font-size: 12px; display: flex; align-items: center; justify-content: center; cursor: pointer; }
.float-consult .close-float:hover { background: var(--error); }

.related-links { padding: 16px 0 48px; }
.related-card { display: flex; gap: 16px; align-items: center; background: var(--bg-card); border: 1px solid var(--border); border-radius: 12px; padding: 16px 20px; transition: var(--transition); }
.related-card:hover { box-shadow: var(--shadow-hover); border-color: rgba(14,110,92,0.25); transform: translateX(4px); }
.related-card .icon { width: 40px; height: 40px; border-radius: 10px; background: var(--primary-light); display: flex; align-items: center; justify-content: center; color: var(--primary); font-size: 18px; flex-shrink: 0; }
.related-card h3 { font-size: 15px; font-weight: 600; margin-bottom: 2px; }
.related-card p { font-size: 13px; color: var(--text-weak); }

@media (max-width: 1023px) {
  :root { --spacing-section: 72px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .guide-item, .guide-item.reverse { flex-direction: column; gap: 24px; padding: 24px; }
  .guide-media img { height: auto; max-height: 240px; width: 100%; }
  .guide-content { padding: 0 !important; width: 100%; }
  .intro-grid { grid-template-columns: 1fr; gap: 32px; }
  .intro-media img { height: 260px; }
  .steps-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .step-arrow { display: none; }
  .nav-list { display: none; position: absolute; top: 72px; left: 0; right: 0; background: #FFFDF9; flex-direction: column; padding: 16px 24px 24px; box-shadow: 0 16px 32px rgba(34,43,39,0.08); gap: 4px; border-bottom: 1px solid var(--border); }
  .nav-list.open { display: flex; }
  .nav-list a { width: 100%; padding: 12px 14px; }
  .nav-list a.active::after { display: none; }
  .nav-list a.active { background: var(--primary-light); border-radius: var(--radius-md); }
  .hamburger { display: flex; }
  .nav-cta { display: none; }
}
@media (max-width: 640px) {
  :root { --spacing-section: 48px; }
  .container { padding: 0 20px; }
  .topbar-links a:first-child { display: none; }
  .logo-text { font-size: 20px; }
  .intro-content h1 { font-size: 30px; padding-left: 14px; }
  .intro-btns .btn { width: 100%; }
  .section-header h2 { font-size: 26px; }
  .steps-grid { grid-template-columns: 1fr 1fr; }
  .step-card { padding: 20px 14px; }
  .step-num { font-size: 28px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom .container { flex-direction: column; text-align: center; }
  .cta-block { padding: 40px 24px; }
  .cta-block h2 { font-size: 24px; }
  .cta-btns .btn { width: 100%; }
  .guide-item { padding: 20px; }
  .float-consult { display: flex; }
  .modal-dialog { padding: 28px 20px; }
  .intro-media img { height: 200px; }
  .guide-media img { height: 180px; }
}
@media (min-width: 1024px) and (max-width: 1279px) {
  .container { max-width: 960px; }
  .guide-item { gap: 32px; padding: 24px; }
  .intro-grid { gap: 40px; }
}

/* roulang page: category3 */
:root{
  --primary:#0E6E5C;
  --primary-dark:#0A4F43;
  --primary-light:#E5F0ED;
  --accent:#C9A76B;
  --accent-soft:#F4ECDD;
  --bg:#F7F4EE;
  --card:#FFFFFF;
  --dark:#1F2926;
  --text:#222B27;
  --text-secondary:#5A6661;
  --text-muted:#8A958F;
  --border:#E4DFD3;
  --success:#2F8F63;
  --warning:#D8873C;
  --error:#BF4E3C;
  --radius-lg:16px;
  --radius-md:10px;
  --radius-pill:999px;
  --shadow-sm:0 8px 24px rgba(34,43,39,.06);
  --shadow-md:0 12px 32px rgba(34,43,39,.12);
  --shadow-lg:0 20px 48px rgba(34,43,39,.18);
  --transition:all .25s ease;
  --container:1200px;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{font-family:system-ui,-apple-system,"Segoe UI",Roboto,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);font-size:16px;line-height:1.7;letter-spacing:.02em;-webkit-font-smoothing:antialiased;}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:var(--transition);}
a:hover{color:var(--primary-dark);text-decoration:underline;}
button{font-family:inherit;cursor:pointer;border:none;background:none;}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--text);}
ul,ol{list-style:none;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 28px;border-radius:var(--radius-md);font-size:16px;font-weight:600;line-height:1.4;transition:var(--transition);text-decoration:none;border:2px solid transparent;cursor:pointer;white-space:nowrap;}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:var(--shadow-md);text-decoration:none;color:#fff;}
.btn-primary:active{transform:scale(.98);}
.btn-outline{background:transparent;border-color:var(--primary);color:var(--primary);}
.btn-outline:hover{background:var(--primary-light);border-color:var(--primary-dark);color:var(--primary-dark);transform:translateY(-2px);text-decoration:none;}
.btn-outline:active{transform:scale(.98);}
.btn-glass{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.6);color:#fff;backdrop-filter:blur(4px);}
.btn-glass:hover{background:rgba(255,255,255,.26);border-color:#fff;color:#fff;transform:translateY(-2px);text-decoration:none;}
.btn-lg{padding:15px 36px;font-size:17px;}
.badge{display:inline-flex;align-items:center;padding:6px 14px;border-radius:var(--radius-pill);background:var(--primary-light);color:var(--primary);font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;}
.section{padding:96px 0;}
.section-head{margin-bottom:48px;max-width:680px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head .section-title{font-size:32px;font-weight:700;line-height:1.3;letter-spacing:.01em;margin:12px 0 16px;}
.section-head .section-subtitle{font-size:16px;color:var(--text-secondary);line-height:1.7;}
.top-bar{background:var(--dark);height:38px;color:rgba(255,255,255,.82);font-size:13px;}
.top-bar .container{height:100%;display:flex;align-items:center;justify-content:space-between;padding:0 24px;}
.domain-indicator{display:inline-flex;align-items:center;gap:8px;font-weight:600;letter-spacing:.04em;}
.domain-indicator::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 3px rgba(201,167,107,.25);}
.top-actions{display:flex;gap:22px;}
.top-actions a{color:rgba(255,255,255,.82);font-size:13px;line-height:38px;text-decoration:none;transition:color .2s;}
.top-actions a:hover{color:var(--accent);}
.site-header{background:#FFFDF9;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100;box-shadow:0 2px 12px rgba(34,43,39,.04);}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;padding:0 24px;}
.logo{display:inline-flex;align-items:center;gap:10px;text-decoration:none;flex-shrink:0;}
.logo:hover{text-decoration:none;}
.logo-text{font-size:22px;font-weight:700;letter-spacing:.01em;color:var(--text);}
.logo-text .accent{color:var(--accent);}
.nav-list{display:flex;align-items:center;gap:4px;}
.nav-list a{display:block;padding:9px 16px;border-radius:8px;font-size:15px;font-weight:500;color:var(--text-secondary);text-decoration:none;transition:var(--transition);}
.nav-list a:hover{color:var(--primary);background:var(--primary-light);text-decoration:none;}
.nav-list a.active{color:var(--primary);font-weight:600;background:var(--primary-light);box-shadow:inset 0 -2px 0 var(--primary);}
.header-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{display:none;width:42px;height:42px;border-radius:8px;align-items:center;justify-content:center;flex-direction:column;gap:5px;background:var(--primary-light);}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--primary);border-radius:2px;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);}
.breadcrumb{background:var(--bg);padding:18px 0;border-bottom:1px solid var(--border);}
.breadcrumb ol{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:14px;color:var(--text-muted);}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px;}
.breadcrumb li+li::before{content:"›";color:var(--border);font-size:16px;}
.breadcrumb a{color:var(--text-secondary);text-decoration:none;}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb [aria-current="page"]{color:var(--text);font-weight:600;}
.cat-hero{position:relative;min-height:420px;display:flex;align-items:center;overflow:hidden;background:#1F2926;}
.cat-hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;}
.cat-hero-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(31,41,38,.82) 0%,rgba(31,41,38,.58) 60%,rgba(14,110,92,.45) 100%);}
.cat-hero-content{position:relative;z-index:2;padding:80px 24px;max-width:700px;margin-left:0;}
.cat-hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--radius-pill);background:rgba(201,167,107,.18);border:1px solid rgba(201,167,107,.5);color:var(--accent);font-size:13px;font-weight:600;letter-spacing:.06em;margin-bottom:18px;}
.cat-hero-badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);}
.cat-hero h1{font-size:40px;font-weight:700;line-height:1.2;color:#fff;margin-bottom:16px;letter-spacing:.01em;}
.cat-hero p{font-size:17px;line-height:1.7;color:rgba(255,255,255,.92);max-width:520px;margin-bottom:28px;}
.cat-hero-actions{display:flex;gap:14px;flex-wrap:wrap;}
.cat-intro{padding:96px 0;background:var(--card);}
.intro-wrap{max-width:960px;margin:0 auto;}
.intro-media{margin-bottom:40px;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);}
.intro-media img{width:100%;height:340px;object-fit:cover;}
.intro-content{max-width:780px;margin:0 auto;text-align:center;}
.intro-content .eyebrow{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--accent);margin-bottom:12px;}
.intro-content h2{font-size:32px;font-weight:700;line-height:1.3;color:var(--text);margin-bottom:18px;}
.intro-content p{font-size:16px;line-height:1.8;color:var(--text-secondary);margin-bottom:16px;}
.values{padding:96px 0;background:var(--bg);}
.values .section-head{text-align:center;margin:0 auto 56px;}
.values-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;}
.value-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:40px 28px 36px;transition:var(--transition);position:relative;overflow:hidden;}
.value-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--primary);opacity:0;transition:opacity .3s;}
.value-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:var(--primary);}
.value-card:hover::before{opacity:1;}
.value-icon{width:56px;height:56px;border-radius:14px;background:var(--primary-light);display:flex;align-items:center;justify-content:center;margin-bottom:22px;}
.value-icon svg{width:28px;height:28px;stroke:var(--primary);}
.value-card h3{font-size:20px;font-weight:600;margin-bottom:12px;color:var(--text);}
.value-card p{font-size:15px;line-height:1.7;color:var(--text-secondary);}
.timeline{padding:96px 0;background:var(--card);}
.timeline .container{max-width:900px;}
.timeline-head{text-align:center;margin-bottom:56px;}
.timeline-head h2{font-size:32px;font-weight:700;margin-bottom:12px;}
.timeline-head p{color:var(--text-secondary);font-size:16px;}
.timeline-list{position:relative;padding-left:32px;}
.timeline-list::before{content:"";position:absolute;left:10px;top:6px;bottom:6px;width:2px;background:var(--border);border-radius:2px;}
.timeline-item{position:relative;padding:0 0 42px 32px;}
.timeline-item:last-child{padding-bottom:0;}
.timeline-item::before{content:"";position:absolute;left:-31px;top:6px;width:14px;height:14px;border-radius:50%;background:var(--card);border:3px solid var(--primary);box-shadow:0 0 0 4px var(--primary-light);}
.timeline-item h3{font-size:18px;font-weight:600;color:var(--text);margin-bottom:8px;}
.timeline-item p{font-size:15px;color:var(--text-secondary);line-height:1.7;max-width:560px;}
.timeline-meta{display:inline-block;font-size:12px;font-weight:600;color:var(--accent);letter-spacing:.06em;text-transform:uppercase;margin-bottom:6px;}
.guarantees{padding:96px 0;background:var(--bg);}
.guarantees .section-head{text-align:center;margin:0 auto 56px;}
.guarantees-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.guarantee-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:32px 28px;text-align:center;transition:var(--transition);}
.guarantee-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-sm);border-color:var(--accent);}
.guarantee-icon{width:48px;height:48px;border-radius:50%;background:var(--accent-soft);display:flex;align-items:center;justify-content:center;margin:0 auto 16px;}
.guarantee-icon svg{width:24px;height:24px;stroke:var(--accent);}
.guarantee-card h3{font-size:18px;font-weight:600;margin-bottom:10px;color:var(--text);}
.guarantee-card p{font-size:14px;color:var(--text-secondary);line-height:1.7;}
.faq{padding:96px 0;background:var(--card);}
.faq .container{max-width:860px;}
.faq-head{text-align:center;margin-bottom:48px;}
.faq-head h2{font-size:32px;font-weight:700;margin-bottom:12px;}
.faq-head p{color:var(--text-secondary);font-size:16px;}
.faq-list{display:flex;flex-direction:column;gap:16px;}
.faq-item{background:var(--bg);border:1px solid var(--border);border-radius:12px;transition:var(--transition);overflow:hidden;}
.faq-item:hover{border-color:var(--primary);}
.faq-item.open{border-color:var(--primary);box-shadow:var(--shadow-sm);}
.faq-question{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 24px;text-align:left;font-size:16px;font-weight:600;color:var(--text);cursor:pointer;background:transparent;min-height:56px;}
.faq-question:hover{color:var(--primary);}
.faq-icon{width:24px;height:24px;flex-shrink:0;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;background:var(--primary-light);color:var(--primary);font-size:18px;font-weight:400;transition:transform .3s ease;}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--primary);color:#fff;}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .35s ease;}
.faq-answer-inner{padding:0 24px 22px;font-size:15px;line-height:1.7;color:var(--text-secondary);}
.cta-section{background:var(--dark);padding:80px 0;position:relative;overflow:hidden;}
.cta-section::before{content:"";position:absolute;top:-60px;right:10%;width:300px;height:300px;border-radius:50%;background:rgba(201,167,107,.08);}
.cta-section .container{position:relative;z-index:2;text-align:center;max-width:720px;}
.cta-section h2{font-size:32px;font-weight:700;color:#fff;margin-bottom:16px;}
.cta-section p{font-size:16px;color:rgba(255,255,255,.78);line-height:1.7;margin-bottom:32px;}
.cta-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;}
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);padding:64px 0 0;font-size:14px;}
.site-footer .logo{font-size:20px;}
.site-footer .logo-text{color:#fff;}
.site-footer .logo-text .accent{color:var(--accent);}
.site-footer p{line-height:1.7;color:rgba(255,255,255,.65);margin-top:16px;max-width:300px;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:48px;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.12);}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:18px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{color:rgba(255,255,255,.65);text-decoration:none;font-size:14px;transition:color .2s;}
.footer-col a:hover{color:var(--accent);text-decoration:none;}
.footer-bottom{padding:22px 0;border-top:1px solid rgba(255,255,255,.08);}
.footer-bottom .container{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px;}
.footer-bottom .copyright{color:rgba(255,255,255,.75);}
.footer-bottom .domain-info{color:rgba(255,255,255,.5);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px;}
.modal-overlay{position:fixed;inset:0;background:rgba(31,41,38,.6);backdrop-filter:blur(4px);z-index:1000;display:flex;align-items:center;justify-content:center;padding:20px;opacity:0;visibility:hidden;transition:opacity .3s,visibility .3s;}
.modal-overlay.active{opacity:1;visibility:visible;}
.modal{width:100%;max-width:560px;max-height:85vh;overflow-y:auto;background:var(--card);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:32px;transform:translateY(20px);transition:transform .3s;}
.modal-overlay.active .modal{transform:translateY(0);}
.modal-header{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:24px;}
.modal-header h3{font-size:22px;font-weight:700;color:var(--text);}
.modal-header p{margin-top:6px;font-size:14px;color:var(--text-secondary);}
.modal-close{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:20px;color:var(--text-secondary);background:var(--bg);transition:var(--transition);flex-shrink:0;}
.modal-close:hover{background:var(--border);color:var(--text);}
.form-group{margin-bottom:18px;}
.form-group label{display:block;font-size:14px;font-weight:600;color:var(--text);margin-bottom:6px;}
.form-group .required{color:var(--error);}
.form-group input,.form-group select,.form-group textarea{width:100%;min-height:44px;padding:10px 14px;border:1px solid #D8D2C4;border-radius:var(--radius-md);background:var(--card);transition:var(--transition);}
.form-group textarea{resize:vertical;min-height:80px;}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(14,110,92,.15);}
.form-group input.error,.form-group select.error,.form-group textarea.error{border-color:var(--error);box-shadow:0 0 0 3px rgba(191,78,60,.12);}
.form-error{display:none;font-size:13px;color:var(--error);margin-top:4px;}
.form-group.has-error .form-error{display:block;}
.modal-footer{margin-top:24px;}
.modal-footer .btn{width:100%;}
.modal-tip{text-align:center;font-size:12px;color:var(--text-muted);margin-top:12px;line-height:1.6;}
.modal-success{display:none;text-align:center;padding:40px 0;}
.modal-success.show{display:block;}
.modal-success-icon{width:64px;height:64px;border-radius:50%;background:var(--primary-light);display:flex;align-items:center;justify-content:center;margin:0 auto 20px;}
.modal-success-icon svg{width:32px;height:32px;stroke:var(--primary);}
.modal-success h4{font-size:20px;color:var(--text);margin-bottom:8px;}
.modal-success p{font-size:14px;color:var(--text-secondary);}
.cta-note{margin-top:18px;font-size:13px;color:var(--text-muted);}
a[data-open-modal],button[data-open-modal]{cursor:pointer;}
@media(max-width:1023px){
  .section{padding:72px 0;}
  .values-grid{grid-template-columns:repeat(2,1fr);gap:24px;}
  .guarantees-grid{grid-template-columns:repeat(2,1fr);gap:24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .nav-toggle{display:inline-flex;}
  .nav-list{position:fixed;top:0;right:-100%;width:280px;height:100vh;flex-direction:column;gap:0;background:var(--card);padding:72px 20px 24px;box-shadow:var(--shadow-lg);transition:right .35s ease;z-index:200;}
  .nav-list.active{right:0;}
  .nav-list a{display:block;padding:14px 16px;font-size:16px;border-radius:8px;margin-bottom:4px;}
  .nav-list a.active{background:var(--primary-light);}
  .header-actions .btn{display:none;}
  .cat-hero{min-height:380px;}
  .cat-hero h1{font-size:32px;}
  .timeline-list{padding-left:24px;}
  .timeline-item{padding-left:24px;}
}
@media(max-width:767px){
  .section{padding:56px 0;}
  .container{padding:0 20px;}
  .top-bar .container{padding:0 16px;}
  .top-actions a:first-child{display:none;}
  .header-inner{height:64px;padding:0 16px;}
  .logo-text{font-size:19px;}
  .cat-hero{min-height:340px;}
  .cat-hero-content{padding:48px 20px;}
  .cat-hero h1{font-size:28px;}
  .cat-hero p{font-size:15px;}
  .cat-hero-actions{flex-direction:column;gap:12px;}
  .cat-hero-actions .btn{width:100%;}
  .btn{width:auto;}
  .intro-media img{height:200px;}
  .intro-content h2{font-size:26px;}
  .values-grid{grid-template-columns:1fr;gap:20px;}
  .guarantees-grid{grid-template-columns:1fr;gap:20px;}
  .timeline-head h2{font-size:26px;}
  .faq-head h2{font-size:26px;}
  .faq-question{padding:16px;font-size:15px;}
  .faq-answer-inner{padding:0 16px 18px;font-size:14px;}
  .cta-section{padding:56px 0;}
  .cta-section h2{font-size:26px;}
  .cta-actions{flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .footer-bottom .container{justify-content:center;text-align:center;}
  .modal{padding:24px;border-radius:12px;}
  .btn-lg{padding:13px 24px;font-size:16px;width:100%;}
  .section-head .section-title{font-size:26px;}
  .timeline-item::before{left:-28px;}
}
@media(max-width:520px){
  .values-grid{grid-template-columns:1fr;}
  .guarantees-grid{grid-template-columns:1fr;}
  .intro-media img{height:180px;}
  .footer-bottom .container{flex-direction:column;}
  .cta-actions{flex-direction:column;}
}