/* roulang page: index */
/* ============================================================
   乐鱼官网全网 - 完整设计系统
   ============================================================ */
:root {
  --primary: #0B2545;
  --primary-light: #163A5F;
  --primary-dark: #071A30;
  --accent: #C9A24B;
  --accent-dark: #A9843A;
  --accent-light: #E2C27A;
  --bg: #F8F6F2;
  --white: #FFFFFF;
  --text: #1F2733;
  --text-muted: #5C6673;
  --border: #E6E2DA;
  --radius: 16px;
  --radius-lg: 28px;
  --radius-sm: 10px;
  --shadow: 0 4px 24px rgba(11,37,69,0.08);
  --shadow-lg: 0 16px 48px rgba(11,37,69,0.14);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --space-section: 96px;
  --space-section-lg: 128px;
  --font-sans: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-serif: "Source Han Serif SC", "Noto Serif SC", "Songti SC", serif;
}

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

html { scroll-behavior: smooth; font-size: 16px; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--bg);
  line-height: 1.75;
  font-size: 1rem;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul, ol { list-style: none; }

.grid-container { max-width: 1240px; padding-left: 24px; padding-right: 24px; }

/* ========== 导航 Header ========== */
.site-header {
  background: rgba(255,255,255,0.98);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  transition: box-shadow 0.3s ease;
}
.site-header.scrolled { box-shadow: 0 4px 30px rgba(11,37,69,0.07); }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 78px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.brand-mark {
  width: 42px;
  height: 42px;
  background: var(--primary);
  color: var(--accent-light);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 800;
  font-family: var(--font-serif);
  box-shadow: 0 4px 12px rgba(11,37,69,0.2);
}
.brand-text {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--primary);
  white-space: nowrap;
}
.brand-text span { color: var(--accent); }

.site-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-muted);
  position: relative;
  transition: var(--transition);
}
.nav-link:hover {
  color: var(--primary);
  background: rgba(11,37,69,0.05);
}
.nav-link.active {
  color: var(--primary);
  font-weight: 600;
}
.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 18px;
  right: 18px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}
.nav-cta {
  margin-left: 16px;
  flex-shrink: 0;
}
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--white);
  cursor: pointer;
  font-size: 18px;
  color: var(--primary);
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.nav-toggle:hover { background: var(--bg); }

/* ========== 按钮 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  letter-spacing: 0.3px;
}
.btn:focus-visible { outline: 3px solid rgba(201,162,75,0.4); outline-offset: 2px; }

.btn-primary {
  background: var(--accent);
  color: var(--primary-dark);
  box-shadow: 0 4px 16px rgba(201,162,75,0.3);
}
.btn-primary:hover {
  background: var(--accent-dark);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(169,132,58,0.35);
}
.btn-primary:active { transform: translateY(0); }

.btn-outline {
  border-color: rgba(255,255,255,0.7);
  color: var(--white);
  background: transparent;
}
.btn-outline:hover {
  background: rgba(255,255,255,0.15);
  border-color: var(--white);
  transform: translateY(-2px);
}
.btn-dark {
  background: var(--primary);
  color: var(--white);
  box-shadow: 0 4px 16px rgba(11,37,69,0.25);
}
.btn-dark:hover {
  background: var(--primary-light);
  color: var(--accent-light);
  transform: translateY(-2px);
}
.btn-lg { padding: 16px 40px; font-size: 16px; }

/* ========== Hero 首屏 ========== */
.hero {
  position: relative;
  background:
    linear-gradient(135deg, rgba(7,26,48,0.92) 20%, rgba(11,37,69,0.78) 55%, rgba(22,58,95,0.65) 100%),
    url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  padding: 140px 0 120px;
  color: var(--white);
  overflow: hidden;
  isolation: isolate;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 80% 40%, rgba(201,162,75,0.18) 0%, transparent 60%);
  z-index: -1;
}
.hero-inner {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}
.hero-tagline {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 999px;
  padding: 8px 22px;
  font-size: 14px;
  letter-spacing: 2px;
  color: rgba(255,255,255,0.9);
  margin-bottom: 32px;
  backdrop-filter: blur(8px);
}
.hero-tagline i { color: var(--accent-light); }
.hero-title {
  font-size: clamp(42px, 6vw, 72px);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: 2px;
  font-family: var(--font-serif);
}
.hero-title span { color: var(--accent-light); }
.hero-subtitle {
  font-size: 1.125rem;
  line-height: 1.9;
  color: rgba(255,255,255,0.85);
  max-width: 640px;
  margin: 0 auto 40px;
  font-weight: 300;
}
.hero-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ========== 信任数据条 ========== */
.trust-bar {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  padding: 48px 0;
  margin-top: -1px;
}
.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}
.trust-item { padding: 8px; }
.trust-num {
  font-size: 44px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
  font-family: var(--font-serif);
}
.trust-num sup { font-size: 22px; color: var(--accent); top: -18px; }
.trust-label {
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 6px;
  letter-spacing: 1px;
}

/* ========== 板块通用 ========== */
.section { padding: var(--space-section) 0; }
.section-alt { background: var(--white); }
.section-header {
  max-width: 720px;
  margin: 0 auto 60px;
  text-align: center;
}
.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(201,162,75,0.15);
  color: var(--accent-dark);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  padding: 6px 18px;
  border-radius: 999px;
  margin-bottom: 18px;
  text-transform: uppercase;
}
.section-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  color: var(--primary);
  line-height: 1.3;
  font-family: var(--font-serif);
  letter-spacing: 0.5px;
}
.section-desc {
  font-size: 1rem;
  color: var(--text-muted);
  margin-top: 14px;
  line-height: 1.8;
}

/* ========== 核心能力卡片 ========== */
.feature-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 28px;
  height: 100%;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), transparent);
  opacity: 0;
  transition: var(--transition);
}
.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.feature-card:hover::before { opacity: 1; }
.feature-icon {
  width: 64px;
  height: 64px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: var(--accent-light);
  margin-bottom: 24px;
  box-shadow: 0 8px 20px rgba(11,37,69,0.18);
}
.feature-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 12px;
}
.feature-card p {
  font-size: 14.5px;
  color: var(--text-muted);
  line-height: 1.8;
}

/* ========== 分类卡片 ========== */
.category-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--border);
  height: 100%;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}
.category-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.category-thumb {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  position: relative;
  background: var(--primary);
}
.category-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}
.category-card:hover .category-thumb img { transform: scale(1.05); }
.category-thumb .thumb-mask {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(7,26,48,0.6) 100%);
}
.category-body {
  padding: 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.category-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent-dark);
  background: rgba(201,162,75,0.12);
  padding: 4px 14px;
  border-radius: 999px;
  width: fit-content;
  margin-bottom: 14px;
}
.category-body h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 10px;
}
.category-body p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.75;
  flex: 1;
  margin-bottom: 20px;
}
.category-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
}
.category-link i { transition: transform 0.3s; font-size: 12px; }
.category-card:hover .category-link i { transform: translateX(6px); }
.category-link:hover { color: var(--accent-dark); }

/* ========== 流程步骤 ========== */
.process {
  background:
    linear-gradient(rgba(248,246,242,0.96), rgba(248,246,242,0.96)),
    url('/assets/images/backpic/back-2.png') center center / cover fixed no-repeat;
}
.process-step {
  text-align: center;
  padding: 28px 20px;
  position: relative;
}
.step-num {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--accent-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 700;
  margin: 0 auto 20px;
  font-family: var(--font-serif);
  box-shadow: 0 8px 20px rgba(11,37,69,0.22);
  position: relative;
}
.step-num::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  background: var(--accent);
  border-radius: 50%;
  bottom: -4px;
  right: -4px;
  border: 3px solid var(--bg);
}
.process-step h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 10px;
}
.process-step p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 240px;
  margin: 0 auto;
}
.process-line {
  position: absolute;
  top: 56px;
  left: calc(50% + 44px);
  width: calc(100% - 88px);
  height: 1px;
  background: linear-gradient(90deg, rgba(201,162,75,0.5), rgba(201,162,75,0.05));
  display: none;
}
@media (min-width: 900px) {
  .process-line { display: block; }
}

/* ========== 最新信息 / 内容列表 ========== */
.latest { background: var(--white); }
.content-card {
  display: flex;
  flex-direction: column;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  height: 100%;
  transition: var(--transition);
}
.content-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-4px);
  border-color: transparent;
}
.content-thumb {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--bg);
}
.content-thumb img { width: 100%; height: 100%; object-fit: cover; }
.content-body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.content-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 12px;
}
.content-meta .tag {
  background: rgba(201,162,75,0.15);
  color: var(--accent-dark);
  font-weight: 600;
  padding: 2px 12px;
  border-radius: 999px;
}
.content-body h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.5;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.content-body p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.content-body .more {
  font-size: 13px;
  font-weight: 500;
  color: var(--accent-dark);
  margin-top: 14px;
}

/* ========== 展示/案例区 ========== */
.showcase { background: var(--bg); }
.showcase-item {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  cursor: pointer;
}
.showcase-item img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s; }
.showcase-item:hover img { transform: scale(1.06); }
.showcase-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(7,26,48,0.9) 100%);
  opacity: 0;
  transition: var(--transition);
  display: flex;
  align-items: flex-end;
  padding: 24px;
}
.showcase-item:hover .showcase-overlay { opacity: 1; }
.showcase-overlay h4 { color: var(--white); font-size: 18px; font-weight: 600; }
.showcase-overlay p { color: rgba(255,255,255,0.8); font-size: 13px; margin-top: 4px; }

/* ========== FAQ ========== */
.faq-list { max-width: 820px; margin: 0 auto; }
.faq-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: rgba(201,162,75,0.4); }
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 28px;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--primary);
  text-align: left;
}
.faq-question .icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(201,162,75,0.15);
  color: var(--accent-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  flex-shrink: 0;
  transition: transform 0.3s;
}
.faq-item.active .faq-question .icon { transform: rotate(45deg); background: var(--accent); color: var(--white); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.faq-answer-inner {
  padding: 0 28px 22px;
  color: var(--text-muted);
  font-size: 14.5px;
  line-height: 1.85;
}
.faq-item.active .faq-answer { max-height: 400px; }

/* ========== CTA ========== */
.cta-section {
  background:
    linear-gradient(120deg, rgba(7,26,48,0.96), rgba(11,37,69,0.88)),
    url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
  padding: 100px 0;
  color: var(--white);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -20%;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: rgba(201,162,75,0.12);
  filter: blur(60px);
}
.cta-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  font-family: var(--font-serif);
  margin-bottom: 16px;
}
.cta-desc {
  font-size: 1rem;
  color: rgba(255,255,255,0.8);
  max-width: 560px;
  margin: 0 auto 36px;
  line-height: 1.8;
}
.cta-actions { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }
.cta-note {
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  margin-top: 20px;
}

/* ========== 页脚 ========== */
.site-footer {
  background: var(--primary-dark);
  color: rgba(255,255,255,0.8);
  padding-top: 60px;
}
.footer-top {
  padding-bottom: 44px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-brand h3 {
  font-size: 24px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 12px;
  font-family: var(--font-serif);
}
.footer-brand h3 span { color: var(--accent); }
.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255,255,255,0.6);
  max-width: 280px;
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 18px;
  letter-spacing: 1px;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  transition: var(--transition);
}
.footer-col ul li a:hover { color: var(--accent-light); padding-left: 6px; }
.footer-bottom {
  padding: 22px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: rgba(255,255,255,0.45);
}
.footer-bottom a { color: rgba(255,255,255,0.45); }
.footer-bottom a:hover { color: var(--accent-light); }

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  :root { --space-section: 80px; }
  .trust-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .site-nav {
    position: fixed;
    top: 78px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    align-items: flex-start;
    padding: 24px;
    gap: 6px;
    box-shadow: 0 20px 40px rgba(7,26,48,0.15);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
    border-bottom: 1px solid var(--border);
  }
  .site-nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-link { width: 100%; padding: 12px 16px; }
  .nav-link.active::after { display: none; }
  .nav-link.active { background: rgba(201,162,75,0.12); color: var(--accent-dark); border-radius: 10px; }
  .nav-cta { display: none; }
  .nav-toggle { display: flex; }
  .hero { padding: 100px 0 80px; }
}

@media (max-width: 768px) {
  :root { --space-section: 64px; }
  .hero-title { font-size: 36px; }
  .hero-subtitle { font-size: 15px; }
  .trust-grid { grid-template-columns: 1fr 1fr; gap: 18px; }
  .trust-num { font-size: 36px; }
  .section-title { font-size: 28px; }
  .btn-lg { padding: 14px 32px; }
  .footer-bottom { flex-direction: column; text-align: center; justify-content: center; }
}

@media (max-width: 520px) {
  :root { --space-section: 52px; }
  .header-inner { height: 68px; }
  .site-nav { top: 68px; }
  .brand-text { font-size: 18px; }
  .brand-mark { width: 36px; height: 36px; font-size: 17px; }
  .hero-tagline { font-size: 12px; padding: 6px 16px; }
  .hero-title { font-size: 30px; }
  .hero-actions .btn { width: 100%; }
  .trust-grid { grid-template-columns: 1fr 1fr; }
  .trust-num { font-size: 30px; }
  .trust-label { font-size: 12px; }
  .section-header { margin-bottom: 36px; }
  .faq-question { padding: 18px 20px; font-size: 14px; }
  .faq-answer-inner { padding: 0 20px 18px; }
}

/* roulang page: article */
:root {
  --primary: #0d6b52;
  --primary-dark: #0a5843;
  --primary-light: #e6f3ef;
  --accent: #e08a0c;
  --accent-light: #fdf3e0;
  --bg: #f5f9f7;
  --surface: #ffffff;
  --text: #1d3630;
  --text-muted: #6e8b84;
  --border: #e2ece8;
  --radius: 18px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 12px rgba(13, 107, 82, .06);
  --shadow-md: 0 16px 40px rgba(13, 107, 82, .10);
  --shadow-lg: 0 28px 70px rgba(13, 107, 82, .15);
  --transition: .3s cubic-bezier(.4, 0, .2, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

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

ul,
ol {
  margin: 0;
  padding: 0;
}

button,
input {
  font-family: inherit;
}

.container-lg {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(255, 255, 255, .86);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
  gap: 28px;
}

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

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #fff;
  font-size: 20px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
}

.brand-text {
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: .5px;
  white-space: nowrap;
}

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

.site-nav {
  display: flex;
  align-items: center;
  gap: 34px;
}

.nav-link {
  position: relative;
  font-size: 15px;
  color: var(--text-muted);
  font-weight: 500;
  padding: 8px 2px;
  white-space: nowrap;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: width var(--transition);
}

.nav-link:hover,
.nav-link.active {
  color: var(--text);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-cta {
  margin-left: 4px;
  flex-shrink: 0;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  background: var(--primary-light);
  color: var(--primary);
  border: 1px solid var(--border);
  border-radius: 12px;
  font-size: 18px;
  cursor: pointer;
  transition: var(--transition);
}

.nav-toggle:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.nav-toggle:focus {
  outline: 3px solid rgba(13, 107, 82, .25);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 30px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.2;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 6px 18px rgba(13, 107, 82, .22);
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 10px 26px rgba(13, 107, 82, .28);
}

.btn-outline {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, .5);
}

.btn-outline:hover {
  background: #fff;
  color: var(--primary-dark);
  border-color: #fff;
  transform: translateY(-2px);
}

.btn-light {
  background: #fff;
  color: var(--primary-dark);
  box-shadow: 0 6px 18px rgba(0, 0, 0, .08);
}

.btn-light:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(0, 0, 0, .13);
}

.btn:focus {
  outline: 3px solid rgba(13, 107, 82, .25);
  outline-offset: 2px;
}

/* ===== Page Banner ===== */
.page-banner {
  position: relative;
  padding: 92px 0 84px;
  background:
    linear-gradient(115deg, rgba(8, 66, 50, .92) 0%, rgba(13, 107, 82, .84) 50%, rgba(16, 128, 96, .72) 100%),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  color: #fff;
  overflow: hidden;
}

.page-banner::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 380px;
  height: 380px;
  background: radial-gradient(circle at center, rgba(255, 255, 255, .09), transparent 70%);
  pointer-events: none;
}

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
  color: rgba(255, 255, 255, .72);
  margin-bottom: 22px;
}

.breadcrumb a {
  color: rgba(255, 255, 255, .72);
  display: flex;
  align-items: center;
  gap: 8px;
  transition: color var(--transition);
}

.breadcrumb a:hover {
  color: #fff;
}

.breadcrumb i {
  font-size: 12px;
}

.banner-title {
  font-size: 40px;
  line-height: 1.3;
  font-weight: 700;
  margin: 0 0 20px;
  max-width: 820px;
  letter-spacing: .5px;
  word-break: break-word;
}

.banner-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 18px;
  font-size: 14px;
  color: rgba(255, 255, 255, .85);
}

.banner-meta span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: rgba(255, 255, 255, .1);
  padding: 6px 16px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, .12);
}

.banner-meta i {
  font-size: 13px;
  color: rgba(255, 255, 255, .75);
}

/* ===== Article Section ===== */
.article-section {
  padding: 80px 0 70px;
}

.article-main {
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  padding: 46px 50px;
}

.article-lead {
  font-size: 17px;
  color: var(--text-muted);
  line-height: 1.9;
  padding: 20px 24px;
  background: var(--primary-light);
  border-radius: var(--radius-sm);
  border-left: 4px solid var(--primary);
  margin-bottom: 34px;
}

.article-content {
  font-size: 16.5px;
  line-height: 1.95;
  color: var(--text);
}

.article-content h2 {
  font-size: 26px;
  font-weight: 700;
  margin: 40px 0 18px;
  padding-top: 6px;
  letter-spacing: .3px;
}

.article-content h3 {
  font-size: 21px;
  font-weight: 600;
  margin: 30px 0 14px;
  color: var(--primary-dark);
}

.article-content p {
  margin-bottom: 20px;
}

.article-content img {
  border-radius: var(--radius-sm);
  margin: 26px 0;
  box-shadow: var(--shadow-sm);
}

.article-content ul,
.article-content ol {
  margin: 0 0 22px;
  padding-left: 24px;
}

.article-content li {
  margin-bottom: 8px;
}

.article-content blockquote {
  margin: 26px 0;
  padding: 20px 26px;
  background: var(--accent-light);
  border-left: 4px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text);
  font-size: 15.5px;
}

.article-content blockquote p {
  margin: 0;
}

.article-content a {
  color: var(--primary);
  border-bottom: 1px solid rgba(13, 107, 82, .3);
}

.article-content a:hover {
  color: var(--primary-dark);
  border-color: var(--primary-dark);
}

.article-tags {
  margin-top: 40px;
  padding-top: 26px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.article-tags .tag-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  margin-right: 4px;
}

.article-tags .tag {
  display: inline-block;
  padding: 6px 16px;
  font-size: 13px;
  background: var(--bg);
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  transition: var(--transition);
}

.article-tags .tag:hover {
  background: var(--primary-light);
  color: var(--primary);
  border-color: rgba(13, 107, 82, .25);
}

.not-found {
  text-align: center;
  padding: 60px 20px;
}

.not-found i {
  font-size: 52px;
  color: var(--accent);
  margin-bottom: 20px;
  display: inline-block;
}

.not-found h2 {
  font-size: 28px;
  margin: 0 0 12px;
}

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

/* ===== Sidebar ===== */
.sidebar-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 24px;
  transition: box-shadow var(--transition);
}

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

.sidebar-title {
  font-size: 17px;
  font-weight: 700;
  margin: 0 0 18px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--primary-light);
  display: flex;
  align-items: center;
  gap: 10px;
}

.sidebar-title i {
  color: var(--primary);
  font-size: 16px;
}

.category-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  background: var(--primary-light);
  color: var(--primary-dark);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 14px;
}

.sidebar-desc {
  font-size: 14px;
  color: var(--text-muted);
  margin: 0 0 18px;
}

.sidebar-list {
  list-style: none;
}

.sidebar-list li {
  border-bottom: 1px solid var(--border);
}

.sidebar-list li:last-child {
  border-bottom: 0;
}

.sidebar-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  color: var(--text);
  font-size: 14.5px;
  transition: var(--transition);
}

.sidebar-list a i {
  font-size: 13px;
  color: var(--text-muted);
  transition: var(--transition);
}

.sidebar-list a:hover {
  color: var(--primary);
  padding-left: 6px;
}

.sidebar-list a:hover i {
  color: var(--primary);
  transform: translateX(4px);
}

.sidebar-cta-card {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #fff;
  border: none;
  text-align: center;
  padding: 34px 28px;
  position: relative;
  overflow: hidden;
}

.sidebar-cta-card::before {
  content: "";
  position: absolute;
  top: -50px;
  right: -50px;
  width: 120px;
  height: 120px;
  background: rgba(255, 255, 255, .08);
  border-radius: 50%;
}

.sidebar-cta-card i {
  font-size: 32px;
  margin-bottom: 16px;
  display: inline-block;
  color: rgba(255, 255, 255, .9);
}

.sidebar-cta-card h4 {
  font-size: 19px;
  margin: 0 0 10px;
}

.sidebar-cta-card p {
  font-size: 13.5px;
  color: rgba(255, 255, 255, .8);
  margin-bottom: 20px;
  line-height: 1.7;
}

.sidebar-cta-card .btn {
  width: 100%;
}

/* ===== Related Section ===== */
.related-section {
  padding: 80px 0 70px;
  background: var(--surface);
  border-top: 1px solid var(--border);
}

.section-head {
  margin-bottom: 42px;
  text-align: center;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

.section-head .subtitle {
  display: inline-block;
  padding: 6px 18px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  border-radius: 999px;
  letter-spacing: 1px;
  margin-bottom: 12px;
}

.section-head h2 {
  font-size: 34px;
  font-weight: 700;
  margin: 0 0 12px;
  letter-spacing: .3px;
}

.section-head p {
  color: var(--text-muted);
  font-size: 16px;
  margin: 0;
}

.service-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  height: 100%;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(13, 107, 82, .25);
}

.service-card-img {
  position: relative;
  height: 190px;
  overflow: hidden;
  background: var(--primary-light);
}

.service-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}

.service-card:hover .service-card-img img {
  transform: scale(1.06);
}

.service-card-img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(13, 107, 82, .18), transparent 60%);
}

.service-card-body {
  padding: 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.service-card-body h3 {
  font-size: 19px;
  margin: 0 0 10px;
  color: var(--text);
}

.service-card-body p {
  font-size: 14.5px;
  color: var(--text-muted);
  margin: 0 0 18px;
  line-height: 1.75;
  flex: 1;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
}

.card-link i {
  transition: transform var(--transition);
}

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

.card-link:hover i {
  transform: translateX(5px);
}

/* ===== CTA Section ===== */
.cta-section {
  position: relative;
  padding: 80px 0;
  background: linear-gradient(120deg, var(--primary-dark) 0%, #116b51 50%, var(--primary) 100%);
  color: #fff;
  text-align: center;
  overflow: hidden;
}

.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  opacity: .12;
}

.cta-inner {
  position: relative;
  z-index: 2;
  max-width: 720px;
  margin: 0 auto;
}

.cta-inner h2 {
  font-size: 36px;
  margin: 0 0 16px;
  letter-spacing: .5px;
}

.cta-inner p {
  font-size: 16px;
  color: rgba(255, 255, 255, .85);
  margin: 0 0 34px;
  line-height: 1.8;
}

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

.cta-note {
  margin-top: 24px;
  font-size: 13px;
  color: rgba(255, 255, 255, .6);
}

/* ===== Footer ===== */
.site-footer {
  background: #0f2b24;
  color: rgba(255, 255, 255, .75);
  padding: 70px 0 30px;
}

.footer-top {
  padding-bottom: 46px;
  border-bottom: 1px solid rgba(255, 255, 255, .1);
}

.footer-brand h3 {
  font-size: 24px;
  color: #fff;
  margin: 0 0 16px;
}

.footer-brand h3 span {
  color: #57c9a7;
}

.footer-brand p {
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(255, 255, 255, .65);
  margin: 0;
  max-width: 330px;
}

.footer-col h4 {
  font-size: 15px;
  color: #fff;
  margin: 0 0 18px;
  letter-spacing: 1px;
  position: relative;
  padding-bottom: 10px;
}

.footer-col h4::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 26px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

.footer-col ul {
  list-style: none;
}

.footer-col li {
  margin-bottom: 12px;
}

.footer-col a {
  color: rgba(255, 255, 255, .68);
  font-size: 14px;
  transition: all var(--transition);
  display: inline-flex;
  align-items: center;
}

.footer-col a:hover {
  color: #57c9a7;
  padding-left: 4px;
}

.footer-bottom {
  padding-top: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: rgba(255, 255, 255, .4);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .header-inner {
    gap: 16px;
  }

  .site-nav {
    gap: 20px;
  }

  .nav-link {
    font-size: 14px;
  }

  .banner-title {
    font-size: 34px;
  }

  .article-main {
    padding: 36px 34px;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-cta {
    display: none;
  }

  .site-nav {
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    background: var(--surface);
    flex-direction: column;
    align-items: stretch;
    padding: 18px 28px 26px;
    gap: 0;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
    transform: translateY(-140%);
    transition: transform .4s cubic-bezier(.4, 0, .2, 1);
    z-index: 59;
  }

  .site-nav.open {
    transform: translateY(0);
  }

  .site-nav .nav-link {
    padding: 15px 0;
    font-size: 16px;
    border-bottom: 1px solid var(--border);
    display: block;
  }

  .site-nav .nav-link::after {
    display: none;
  }

  .site-nav .nav-link.active,
  .site-nav .nav-link:hover {
    color: var(--primary);
  }

  .page-banner {
    padding: 62px 0 56px;
  }

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

  .banner-meta {
    gap: 10px;
  }

  .article-section {
    padding: 50px 0 44px;
  }

  .article-main {
    padding: 26px 22px;
    border-radius: 14px;
  }

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

  .article-content {
    font-size: 15.5px;
    line-height: 1.85;
  }

  .article-content h2 {
    font-size: 22px;
  }

  .sidebar-card {
    padding: 22px;
  }

  .related-section {
    padding: 54px 0 48px;
  }

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

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

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

  .footer-top {
    padding-bottom: 34px;
  }

  .copyright-line {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 520px) {
  .container-lg {
    padding: 0 20px;
  }

  .brand-text {
    font-size: 19px;
  }

  .brand-mark {
    width: 38px;
    height: 38px;
    font-size: 17px;
  }

  .header-inner {
    height: 72px;
  }

  .site-nav {
    top: 72px;
  }

  .page-banner {
    padding: 48px 0 44px;
  }

  .banner-title {
    font-size: 23px;
  }

  .banner-meta span {
    padding: 5px 12px;
    font-size: 13px;
  }

  .article-main {
    padding: 20px 16px;
  }

  .article-content p {
    margin-bottom: 16px;
  }

  .article-content blockquote {
    padding: 16px 18px;
    font-size: 14.5px;
  }

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

  .cta-inner p {
    font-size: 14.5px;
  }

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

/* roulang page: category1 */
/* ============ Design Tokens ============ */
:root {
  --primary: #1a4d8f;
  --primary-dark: #0e3263;
  --primary-deep: #071f3d;
  --primary-light: #e8f0fa;
  --primary-lighter: #f4f8fc;
  --accent: #f0b840;
  --accent-dark: #d99f2a;
  --bg: #f6f9fc;
  --white: #ffffff;
  --text: #17283a;
  --text-weak: #54677b;
  --text-light: #8ba0b5;
  --border: #dfe8f2;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 10px rgba(16, 42, 80, .06);
  --shadow-md: 0 8px 30px rgba(16, 42, 80, .08);
  --shadow-lg: 0 20px 50px rgba(16, 42, 80, .14);
  --space-section: 110px;
  --space-section-md: 80px;
  --transition: .3s cubic-bezier(.4, 0, .2, 1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

ul, ol {
  list-style: none;
}

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

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

/* ============ Foundation Override ============ */
.grid-container {
  max-width: 1200px;
  padding-left: 24px;
  padding-right: 24px;
}

.grid-margin-x > .cell {
  margin-bottom: 30px;
}

/* ============ Container Utilities ============ */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ============ Buttons ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  border: 2px solid transparent;
  transition: all var(--transition);
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
}

.btn-primary {
  background: var(--primary);
  color: var(--white) !important;
  box-shadow: 0 6px 20px rgba(26, 77, 143, .28);
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(26, 77, 143, .36);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 4px 12px rgba(26, 77, 143, .24);
}

.btn-primary:focus-visible {
  outline: 3px solid rgba(26, 77, 143, .45);
  outline-offset: 3px;
}

.btn-accent {
  background: var(--accent);
  color: var(--primary-deep) !important;
  box-shadow: 0 6px 20px rgba(240, 184, 64, .32);
}

.btn-accent:hover {
  background: #f6c65e;
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(240, 184, 64, .42);
}

.btn-accent:active {
  transform: translateY(0);
  box-shadow: 0 4px 12px rgba(240, 184, 64, .3);
}

.btn-accent:focus-visible {
  outline: 3px solid rgba(240, 184, 64, .5);
  outline-offset: 3px;
}

.btn-ghost {
  background: transparent;
  color: var(--primary) !important;
  border-color: var(--primary);
}

.btn-ghost:hover {
  background: var(--primary-light);
  border-color: var(--primary-dark);
  transform: translateY(-2px);
}

.btn-ghost-light {
  background: rgba(255, 255, 255, .12);
  color: var(--white) !important;
  border-color: rgba(255, 255, 255, .6);
  backdrop-filter: blur(6px);
}

.btn-ghost-light:hover {
  background: rgba(255, 255, 255, .22);
  border-color: var(--white);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 18px 44px;
  font-size: 17px;
}

/* ============ Section Tags & Headings ============ */
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 18px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  border-radius: 40px;
  text-transform: uppercase;
}

.section-tag.light {
  background: rgba(255, 255, 255, .16);
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, .35);
}

.section-tag::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 60px;
}

.section-head h2 {
  font-size: 38px;
  font-weight: 800;
  line-height: 1.3;
  color: var(--text);
  margin-top: 16px;
  letter-spacing: -.02em;
}

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

/* ============ Header & Navigation ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(223, 232, 242, .8);
  transition: box-shadow var(--transition);
}

.site-header.scrolled {
  box-shadow: 0 4px 24px rgba(16, 42, 80, .08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 78px;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--white);
  font-size: 20px;
  font-weight: 800;
  border-radius: 12px;
  box-shadow: 0 4px 14px rgba(26, 77, 143, .28);
}

.brand-text {
  font-size: 22px;
  font-weight: 800;
  color: var(--primary-dark);
  letter-spacing: -.01em;
  line-height: 1.2;
}

.brand-text span {
  color: var(--primary);
  font-weight: 700;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-link {
  position: relative;
  padding: 10px 18px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  border-radius: 50px;
  transition: color var(--transition), background var(--transition);
}

.nav-link:hover {
  color: var(--primary);
  background: var(--primary-lighter);
}

.nav-link.active {
  color: var(--primary);
  font-weight: 700;
}

.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 3px;
  border-radius: 4px;
  background: var(--accent);
}

.nav-cta {
  padding: 10px 24px;
  font-size: 14px;
  flex-shrink: 0;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  font-size: 20px;
  color: var(--primary);
  background: var(--primary-light);
  transition: background var(--transition);
}

.nav-toggle:hover {
  background: var(--primary-lighter);
}

.nav-toggle:focus-visible {
  outline: 3px solid rgba(26, 77, 143, .4);
  outline-offset: 2px;
}

/* ============ Page Banner ============ */
.page-banner {
  position: relative;
  padding: 140px 0 120px;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: var(--white);
}

.page-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(7, 31, 61, .92) 0%, rgba(14, 50, 99, .82) 45%, rgba(26, 77, 143, .55) 100%);
}

.page-banner .grid-container {
  position: relative;
  z-index: 2;
}

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

.banner-inner .section-tag {
  margin-bottom: 24px;
}

.banner-inner h1 {
  font-size: 52px;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -.02em;
  margin-bottom: 24px;
}

.banner-inner h1 span {
  color: var(--accent);
}

.banner-inner p {
  font-size: 18px;
  line-height: 1.9;
  color: rgba(255, 255, 255, .88);
  margin-bottom: 40px;
  max-width: 600px;
}

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

/* ============ Intro Section ============ */
.intro-section {
  padding: var(--space-section) 0;
  background: var(--white);
}

.intro-media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.intro-media img {
  width: 100%;
  height: 420px;
  object-fit: cover;
}

.intro-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(7, 31, 61, .45), transparent 50%);
}

.intro-media .media-badge {
  position: absolute;
  left: 24px;
  bottom: 24px;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, .18);
  backdrop-filter: blur(10px);
  padding: 12px 22px;
  border-radius: 50px;
  color: var(--white);
  font-weight: 600;
  font-size: 14px;
  border: 1px solid rgba(255, 255, 255, .25);
}

.intro-content {
  padding-left: 40px;
}

.intro-content .section-tag {
  margin-bottom: 20px;
}

.intro-content h2 {
  font-size: 36px;
  font-weight: 800;
  line-height: 1.35;
  margin-bottom: 20px;
  letter-spacing: -.02em;
}

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

.check-list {
  margin-top: 28px;
}

.check-list li {
  position: relative;
  padding: 8px 0 8px 34px;
  font-size: 15px;
  color: var(--text);
}

.check-list li::before {
  content: "\f00c";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  position: absolute;
  left: 0;
  top: 9px;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 50%;
  font-size: 12px;
}

/* ============ Service Cards Section ============ */
.service-section {
  padding: var(--space-section) 0;
  background: var(--bg);
  position: relative;
}

.service-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
}

.service-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 36px 28px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.service-icon {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: var(--primary);
  background: var(--primary-light);
  margin-bottom: 24px;
  transition: all var(--transition);
}

.service-card:hover .service-icon {
  background: var(--primary);
  color: var(--white);
  transform: scale(1.05);
}

.service-card h3 {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text);
}

.service-card p {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.8;
  margin-bottom: 20px;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
}

.tag {
  display: inline-block;
  padding: 4px 12px;
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-lighter);
  border-radius: 30px;
}

/* ============ Process Section ============ */
.process-section {
  padding: var(--space-section) 0;
  background: var(--white);
  position: relative;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 20px;
  position: relative;
}

.process-grid::before {
  content: "";
  position: absolute;
  top: 40px;
  left: 8%;
  right: 8%;
  height: 2px;
  background: linear-gradient(90deg, var(--primary-light), var(--primary), var(--primary-light));
  border-radius: 2px;
}

.process-step {
  text-align: center;
  position: relative;
}

.process-step .step-num {
  width: 80px;
  height: 80px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 22px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 4px solid var(--white);
  box-shadow: 0 0 0 2px var(--primary);
  position: relative;
  z-index: 2;
  transition: all var(--transition);
}

.process-step:hover .step-num {
  background: var(--primary);
  color: var(--white);
  box-shadow: 0 0 0 4px var(--primary-light);
  transform: scale(1.05);
}

.process-step h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
}

.process-step p {
  font-size: 13px;
  color: var(--text-weak);
  line-height: 1.7;
  padding: 0 6px;
}

/* ============ Stats Section ============ */
.stats-section {
  padding: 80px 0;
  background: linear-gradient(120deg, var(--primary-deep) 0%, var(--primary-dark) 60%, var(--primary) 100%);
  position: relative;
  overflow: hidden;
}

.stats-section::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -80px;
  width: 280px;
  height: 280px;
  background: rgba(240, 184, 64, .08);
  border-radius: 50%;
}

.stats-section::after {
  content: "";
  position: absolute;
  bottom: -120px;
  left: 10%;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, .06);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  position: relative;
  z-index: 2;
}

.stat-item {
  text-align: center;
  padding: 30px 20px;
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: var(--radius-md);
  backdrop-filter: blur(8px);
  transition: transform var(--transition);
}

.stat-item:hover {
  transform: translateY(-6px);
}

.stat-num {
  display: block;
  font-size: 46px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.2;
  margin-bottom: 8px;
  font-variant-numeric: tabular-nums;
}

.stat-label {
  font-size: 14px;
  color: rgba(255, 255, 255, .82);
  letter-spacing: .04em;
}

/* ============ Cases Section ============ */
.cases-section {
  padding: var(--space-section) 0;
  background: var(--bg);
}

.case-card {
  background: var(--white);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  height: 100%;
}

.case-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.case-media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 3;
}

.case-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .6s ease;
}

.case-card:hover .case-media img {
  transform: scale(1.05);
}

.case-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(7, 31, 61, .5), transparent 60%);
}

.case-category {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 2;
  display: inline-block;
  padding: 5px 14px;
  background: rgba(255, 255, 255, .88);
  backdrop-filter: blur(8px);
  color: var(--primary);
  font-size: 12px;
  font-weight: 700;
  border-radius: 30px;
}

.case-body {
  padding: 24px;
}

.case-body h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text);
}

.case-body p {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.8;
  margin-bottom: 16px;
}

.case-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 13px;
  color: var(--text-light);
  border-top: 1px solid var(--border);
  padding-top: 14px;
}

.case-meta span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.case-meta i {
  color: var(--accent);
}

/* ============ FAQ Section ============ */
.faq-section {
  padding: var(--space-section) 0;
  background: var(--white);
}

.faq-list {
  max-width: 860px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  margin-bottom: 16px;
  overflow: hidden;
  transition: box-shadow var(--transition);
}

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

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 28px;
  text-align: left;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  transition: background var(--transition);
}

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

.faq-question .faq-icon {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 14px;
  transition: all var(--transition);
}

.faq-item.open .faq-icon {
  background: var(--primary);
  color: var(--white);
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s ease, padding .3s ease;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-weak);
}

.faq-answer-inner {
  padding: 0 28px 26px;
}

.faq-item.open .faq-answer {
  max-height: 320px;
}

.faq-item.open .faq-answer-inner {
  padding-top: 0;
}

/* ============ CTA Section ============ */
.cta-section {
  padding: 100px 0;
  background: linear-gradient(120deg, var(--primary-deep), var(--primary-dark) 50%, var(--primary));
  position: relative;
  overflow: hidden;
  color: var(--white);
}

.cta-section::before {
  content: "";
  position: absolute;
  top: -60px;
  left: -60px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: rgba(240, 184, 64, .12);
}

.cta-section::after {
  content: "";
  position: absolute;
  right: 8%;
  bottom: -100px;
  width: 300px;
  height: 300px;
  border: 2px solid rgba(255, 255, 255, .08);
  border-radius: 50%;
}

.cta-inner {
  position: relative;
  text-align: center;
  z-index: 2;
  max-width: 680px;
  margin: 0 auto;
}

.cta-inner .section-tag {
  margin-bottom: 20px;
}

.cta-inner h2 {
  font-size: 40px;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 18px;
}

.cta-inner p {
  color: rgba(255, 255, 255, .8);
  font-size: 16px;
  margin-bottom: 36px;
}

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

/* ============ Footer ============ */
.site-footer {
  background: var(--primary-deep);
  color: rgba(255, 255, 255, .82);
  padding: 80px 0 30px;
}

.footer-top {
  padding-bottom: 50px;
  border-bottom: 1px solid rgba(255, 255, 255, .1);
}

.footer-brand h3 {
  font-size: 26px;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 16px;
}

.footer-brand h3 span {
  color: var(--accent);
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.9;
  color: rgba(255, 255, 255, .6);
  max-width: 360px;
}

.footer-col h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}

.footer-col h4::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 24px;
  height: 3px;
  border-radius: 3px;
  background: var(--accent);
}

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

.footer-col ul li a {
  color: rgba(255, 255, 255, .68);
  font-size: 14px;
  transition: all var(--transition);
}

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

.footer-bottom {
  padding-top: 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: rgba(255, 255, 255, .4);
}

/* ============ Responsive ============ */
@media (max-width: 1024px) {
  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: fixed;
    top: 78px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    align-items: stretch;
    padding: 20px 24px;
    gap: 4px;
    box-shadow: 0 20px 40px rgba(16, 42, 80, .14);
    display: none;
    max-height: calc(100vh - 78px);
    overflow-y: auto;
  }

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

  .nav-link {
    padding: 14px 16px;
    border-radius: 10px;
    text-align: center;
  }

  .nav-link.active {
    background: var(--primary-light);
  }

  .nav-link.active::after {
    display: none;
  }

  .nav-cta {
    display: none;
  }

  .process-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 30px 20px;
  }

  .process-grid::before {
    display: none;
  }

  .process-step:nth-child(1) .step-num {
    box-shadow: 0 0 0 2px var(--primary);
  }

  .intro-content {
    padding-left: 0;
    margin-top: 40px;
  }

  .banner-inner h1 {
    font-size: 40px;
  }
}

@media (max-width: 768px) {
  :root {
    --space-section: 70px;
  }

  .section-head h2 {
    font-size: 30px;
  }

  .banner-inner h1 {
    font-size: 34px;
  }

  .banner-inner p {
    font-size: 16px;
  }

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

  .stat-num {
    font-size: 34px;
  }

  .page-banner {
    padding: 100px 0 80px;
  }

  .intro-media img {
    height: 300px;
  }

  .cta-inner h2 {
    font-size: 30px;
  }
}

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

  .header-inner {
    height: 68px;
    gap: 12px;
  }

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

  .brand-mark {
    width: 36px;
    height: 36px;
    font-size: 17px;
  }

  .site-nav {
    top: 68px;
    padding: 16px;
  }

  .banner-inner h1 {
    font-size: 28px;
  }

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

  .banner-actions {
    flex-direction: column;
  }

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

  .process-grid {
    grid-template-columns: 1fr 1fr;
    gap: 24px 12px;
  }

  .process-step .step-num {
    width: 64px;
    height: 64px;
    font-size: 18px;
  }

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

  .stat-item {
    padding: 20px 16px;
  }

  .stat-num {
    font-size: 30px;
  }

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

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

  .cta-actions {
    flex-direction: column;
  }

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

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

  .intro-media img {
    height: 240px;
  }

  .intro-media .media-badge {
    left: 16px;
    bottom: 16px;
    padding: 10px 16px;
    font-size: 13px;
  }
}

/* roulang page: category2 */
:root {
  --primary: #0b63e5;
  --primary-dark: #0847a8;
  --primary-light: #eaf1fd;
  --accent: #ff7a1a;
  --accent-light: #fff1e6;
  --bg: #f7f9fc;
  --bg-white: #ffffff;
  --text: #172033;
  --text-light: #5a687a;
  --border: #e6ebf2;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 10px rgba(23,32,51,0.06);
  --shadow-md: 0 10px 30px rgba(23,32,51,0.08);
  --shadow-lg: 0 20px 50px rgba(23,32,51,0.12);
  --space-section: 88px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body { font-family: var(--font-sans); background: var(--bg); color: var(--text); line-height: 1.7; font-size: 16px; }
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: all .25s ease; }
ul { list-style: none; padding: 0; }
button { border: none; background: none; cursor: pointer; font-family: inherit; }
input, textarea { font-family: inherit; }

.grid-container { max-width: 1200px; padding-left: 24px; padding-right: 24px; }

/* ===== 按钮 ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 28px; border-radius: 100px; font-weight: 600;
  font-size: 15px; letter-spacing: .2px; transition: all .3s ease;
  border: 2px solid transparent; line-height: 1.4;
}
.btn-primary {
  background: var(--primary); color: #fff; box-shadow: 0 6px 18px rgba(11,99,229,0.25);
}
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 10px 26px rgba(11,99,229,0.32); }
.btn-outline {
  background: transparent; border-color: rgba(11,99,229,0.35); color: var(--primary);
}
.btn-outline:hover { border-color: var(--primary); background: var(--primary); color: #fff; }
.btn-white {
  background: #fff; color: var(--primary);
}
.btn-white:hover { transform: translateY(-2px); box-shadow: 0 10px 26px rgba(23,32,51,0.16); }
.btn-light {
  background: rgba(255,255,255,0.16); color: #fff; border-color: rgba(255,255,255,0.5);
  backdrop-filter: blur(6px);
}
.btn-light:hover { background: rgba(255,255,255,0.26); }

/* ===== Header ===== */
.site-header {
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 100;
  transition: box-shadow .3s ease;
}
.site-header.scrolled { box-shadow: 0 4px 24px rgba(23,32,51,0.08); }
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px; gap: 24px;
}
.brand { display: inline-flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-mark {
  width: 42px; height: 42px; border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), #4d9fff);
  color: #fff; font-size: 22px; font-weight: 800;
  display: inline-flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 16px rgba(11,99,229,0.3);
}
.brand-text { font-size: 20px; font-weight: 800; color: var(--text); letter-spacing: .5px; }
.brand-text span { color: var(--primary); }
.site-nav { display: flex; align-items: center; gap: 6px; }
.site-nav a {
  position: relative; padding: 8px 16px; font-size: 15px; font-weight: 500;
  color: var(--text-light); border-radius: 8px; white-space: nowrap;
}
.site-nav a::after {
  content: ""; position: absolute; left: 16px; right: 16px; bottom: 2px;
  height: 2px; border-radius: 4px; background: var(--primary);
  transform: scaleX(0); transform-origin: left; transition: transform .3s ease;
}
.site-nav a:hover { color: var(--primary); }
.site-nav a.active { color: var(--primary); font-weight: 600; }
.site-nav a.active::after { transform: scaleX(1); }
.nav-cta { padding: 10px 24px; font-size: 14px; flex-shrink: 0; }
.nav-toggle { display: none; font-size: 24px; color: var(--text); width: 44px; height: 44px; border-radius: 10px; align-items: center; justify-content: center; border: 1px solid var(--border); }

/* ===== Page Hero ===== */
.page-hero {
  position: relative; padding: 108px 0 96px;
  background: linear-gradient(135deg, rgba(8,71,168,0.92) 0%, rgba(11,99,229,0.82) 50%, rgba(30,140,255,0.78) 100%), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  color: #fff; overflow: hidden;
}
.page-hero::after {
  content: ""; position: absolute; right: -80px; top: -80px;
  width: 400px; height: 400px; border-radius: 50%;
  background: rgba(255,255,255,0.08);
}
.hero-inner { position: relative; z-index: 2; max-width: 780px; }
.page-hero .hero-tag {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,0.18); border: 1px solid rgba(255,255,255,0.28);
  padding: 6px 16px; border-radius: 100px; font-size: 14px; font-weight: 500;
  backdrop-filter: blur(6px); margin-bottom: 20px;
}
.page-hero h1 { font-size: 48px; line-height: 1.25; font-weight: 800; margin-bottom: 18px; letter-spacing: 1px; }
.page-hero p { font-size: 17px; line-height: 1.8; color: rgba(255,255,255,0.9); margin-bottom: 32px; max-width: 620px; }
.hero-btns { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-meta { display: flex; gap: 36px; margin-top: 44px; flex-wrap: wrap; }
.hero-meta-item { display: flex; align-items: center; gap: 12px; }
.hero-meta-item i { font-size: 22px; opacity: .95; }
.hero-meta-item strong { display: block; font-size: 22px; font-weight: 800; line-height: 1.2; }
.hero-meta-item span { font-size: 13px; opacity: .85; }

/* ===== 板块通用 ===== */
.section { padding: var(--space-section) 0; }
.section-alt { background: var(--bg-white); }
.section-header { text-align: center; max-width: 720px; margin: 0 auto 52px; }
.section-tag {
  display: inline-block; font-size: 13px; font-weight: 600;
  color: var(--primary); letter-spacing: 2px; text-transform: uppercase;
  padding: 6px 16px; border-radius: 100px; background: var(--primary-light);
  margin-bottom: 14px;
}
.section-title { font-size: 34px; font-weight: 800; line-height: 1.35; letter-spacing: .5px; }
.section-sub { color: var(--text-light); font-size: 16px; margin-top: 12px; line-height: 1.7; }

/* ===== 服务核心卡 ===== */
.service-grid { display: flex; flex-wrap: wrap; margin: -12px; }
.service-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 36px 30px; transition: all .35s ease; height: 100%;
  position: relative; overflow: hidden;
}
.service-card::before {
  content: ""; position: absolute; left: 0; top: 0; width: 100%; height: 4px;
  background: linear-gradient(90deg, var(--primary), #4d9fff); opacity: 0; transition: opacity .3s ease;
}
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: transparent; }
.service-card:hover::before { opacity: 1; }
.service-icon {
  width: 60px; height: 60px; border-radius: 16px;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 24px; color: var(--primary); background: var(--primary-light);
  margin-bottom: 20px;
}
.service-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 12px; }
.service-card p { color: var(--text-light); font-size: 15px; line-height: 1.75; }
.service-list-ai { margin-top: 18px; }
.service-list-ai li { display: flex; align-items: center; gap: 8px; padding: 6px 0; color: var(--text-light); font-size: 14px; }
.service-list-ai li i { color: var(--primary); font-size: 12px; width: 18px; height: 18px; background: var(--primary-light); border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; flex-shrink: 0; }

/* ===== 数据板块 ===== */
.stats-section {
  background: linear-gradient(135deg, #0b1d3a, #0b3a6f), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  background-blend-mode: overlay; color: #fff; padding: 90px 0;
  position: relative;
}
.stats-grid { display: flex; flex-wrap: wrap; margin: -20px; }
.stat-item { text-align: center; padding: 20px; }
.stat-number { font-size: 52px; font-weight: 800; line-height: 1.2; letter-spacing: -1px; }
.stat-number span { color: #4d9fff; }
.stat-label { font-size: 15px; opacity: .85; margin-top: 6px; letter-spacing: 1px; }
.stat-divider { width: 1px; background: rgba(255,255,255,0.2); }

/* ===== 流程 ===== */
.flow-list { display: flex; flex-wrap: wrap; margin: -15px; }
.flow-item {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 32px 26px; position: relative; height: 100%;
  transition: all .3s ease;
}
.flow-item:hover { box-shadow: var(--shadow-md); border-color: rgba(11,99,229,0.25); }
.flow-step {
  display: inline-flex; align-items: center; justify-content: center;
  width: 42px; height: 42px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), #4d9fff);
  color: #fff; font-weight: 800; font-size: 16px; margin-bottom: 18px;
  box-shadow: 0 6px 14px rgba(11,99,229,0.3);
}
.flow-item h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.flow-item p { color: var(--text-light); font-size: 14px; line-height: 1.7; }

/* ===== 案例卡片 ===== */
.case-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; transition: all .35s ease; height: 100%;
}
.case-card:hover { box-shadow: var(--shadow-md); transform: translateY(-6px); }
.case-cover { position: relative; overflow: hidden; aspect-ratio: 16/10; }
.case-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.case-card:hover .case-cover img { transform: scale(1.05); }
.case-cover-tag {
  position: absolute; left: 14px; top: 14px;
  background: var(--primary); color: #fff; font-size: 13px; font-weight: 600;
  padding: 4px 12px; border-radius: 100px; box-shadow: 0 4px 12px rgba(11,99,229,0.3);
}
.case-body { padding: 24px; }
.case-body h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; line-height: 1.45; }
.case-body p { color: var(--text-light); font-size: 14px; line-height: 1.7; }
.case-meta { display: flex; gap: 16px; margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--border); font-size: 13px; color: var(--text-light); }
.case-meta i { color: var(--primary); margin-right: 4px; }

/* ===== 图文内容区 ===== */
.content-block { display: flex; align-items: center; gap: 56px; flex-wrap: wrap; }
.content-block .content-text { flex: 1 1 480px; }
.content-block .content-img { flex: 1 1 420px; }
.content-img .img-wrap {
  border-radius: 20px; overflow: hidden; box-shadow: var(--shadow-lg);
  position: relative; aspect-ratio: 4/3;
}
.content-img .img-wrap img { width: 100%; height: 100%; object-fit: cover; }
.content-img .img-badge {
  position: absolute; left: 20px; bottom: 20px;
  background: rgba(255,255,255,0.95); border-radius: 14px;
  padding: 14px 20px; box-shadow: var(--shadow-md); backdrop-filter: blur(8px);
}
.content-img .img-badge strong { display: block; font-size: 22px; color: var(--primary); }
.content-img .img-badge span { font-size: 13px; color: var(--text-light); }
.ck-list { margin-top: 24px; }
.ck-list li { display: flex; align-items: flex-start; gap: 12px; padding: 8px 0; color: var(--text-light); }
.ck-list li i { color: var(--primary); margin-top: 4px; flex-shrink: 0; width: 21px; height: 21px; background: var(--primary-light); border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; font-size: 11px; }
.ck-list li strong { color: var(--text); font-weight: 600; }

/* ===== FAQ ===== */
.faq-wrap { max-width: 860px; margin: 0 auto; }
.faq-item {
  background: #fff; border: 1px solid var(--border); border-radius: 14px;
  margin-bottom: 14px; overflow: hidden; transition: box-shadow .3s ease;
}
.faq-item:hover { box-shadow: var(--shadow-sm); }
.faq-item.open { box-shadow: var(--shadow-md); }
.faq-question {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 26px; cursor: pointer; font-size: 16px; font-weight: 600;
  gap: 16px; transition: background .2s ease;
}
.faq-question:hover { background: #fafbff; }
.faq-icon {
  width: 30px; height: 30px; border-radius: 50%;
  border: 2px solid var(--primary); color: var(--primary);
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 13px; flex-shrink: 0; transition: all .3s ease;
}
.faq-item.open .faq-icon { background: var(--primary); color: #fff; transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .4s ease; }
.faq-answer-inner { padding: 0 26px 22px; color: var(--text-light); font-size: 15px; line-height: 1.8; }

/* ===== CTA ===== */
.cta-section {
  background: linear-gradient(135deg, #0847a8, #0b63e5, #1a8cff);
  color: #fff; padding: 76px 0; text-align: center; position: relative; overflow: hidden;
}
.cta-section::before {
  content: ""; position: absolute; left: -100px; bottom: -100px;
  width: 320px; height: 320px; border-radius: 50%;
  background: rgba(255,255,255,0.1);
}
.cta-section::after {
  content: ""; position: absolute; right: -60px; top: -60px;
  width: 240px; height: 240px; border-radius: 50%;
  background: rgba(255,255,255,0.08);
}
.cta-inner { position: relative; z-index: 2; max-width: 700px; margin: 0 auto; }
.cta-inner h2 { font-size: 36px; font-weight: 800; letter-spacing: .5px; }
.cta-inner p { color: rgba(255,255,255,0.9); font-size: 16px; margin-top: 14px; }
.cta-btns { display: flex; gap: 16px; justify-content: center; margin-top: 32px; flex-wrap: wrap; }

/* ===== Footer ===== */
.site-footer { background: #0b1d3a; color: rgba(255,255,255,0.75); padding: 64px 0 28px; }
.footer-brand h3 { color: #fff; font-size: 24px; font-weight: 800; margin-bottom: 14px; }
.footer-brand h3 span { color: #4d9fff; }
.footer-brand p { font-size: 14px; color: rgba(255,255,255,0.6); line-height: 1.8; max-width: 360px; }
.footer-col h4 { color: #fff; font-size: 16px; font-weight: 600; margin-bottom: 18px; position: relative; padding-bottom: 10px; }
.footer-col h4::after { content: ""; position: absolute; left: 0; bottom: 0; width: 24px; height: 2px; background: var(--primary); border-radius: 2px; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { color: rgba(255,255,255,0.6); font-size: 14px; display: inline-flex; align-items: center; gap: 6px; transition: all .25s ease; }
.footer-col ul li a:hover { color: #fff; padding-left: 4px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  margin-top: 44px; padding-top: 22px;
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  font-size: 13px; color: rgba(255,255,255,0.45);
}

/* ===== 面包屑 ===== */
.breadcrumb-bar {
  background: #fff; border-bottom: 1px solid var(--border);
  padding: 16px 0; font-size: 14px; color: var(--text-light);
}
.breadcrumb-bar a:hover { color: var(--primary); }
.breadcrumb-bar .sep { margin: 0 8px; color: #b0b8c4; }
.breadcrumb-bar .current { color: var(--primary); font-weight: 500; }

/* ===== 内页资讯 ===== */
.info-grid { display: flex; flex-wrap: wrap; margin: -12px; }
.info-card {
  background: #fff; border: 1px solid var(--border); border-radius: 14px;
  padding: 26px; transition: all .3s ease; height: 100%;
}
.info-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.info-card .info-tag {
  display: inline-block; background: var(--primary-light); color: var(--primary);
  font-size: 12px; font-weight: 600; padding: 3px 10px; border-radius: 6px; margin-bottom: 14px;
}
.info-card h3 { font-size: 17px; font-weight: 700; line-height: 1.5; margin-bottom: 10px; }
.info-card p { color: var(--text-light); font-size: 14px; line-height: 1.7; }
.info-card .info-link { display: inline-flex; align-items: center; gap: 6px; color: var(--primary); font-size: 14px; font-weight: 500; margin-top: 14px; }
.info-card .info-link i { transition: transform .3s ease; font-size: 12px; }
.info-card .info-link:hover i { transform: translateX(4px); }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  :root { --space-section: 68px; }
  .page-hero h1 { font-size: 38px; }
  .section-title { font-size: 30px; }
  .stat-number { font-size: 42px; }
  .content-block { gap: 36px; }
}

@media (max-width: 768px) {
  :root { --space-section: 56px; }
  .header-inner { height: 64px; }
  .site-nav {
    position: fixed; top: 64px; left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--border);
    flex-direction: column; align-items: stretch; gap: 0;
    padding: 12px 24px 20px;
    display: none; box-shadow: 0 16px 32px rgba(23,32,51,0.1);
    z-index: 99;
  }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 12px 8px; font-size: 16px; border-bottom: 1px solid #f0f2f5; }
  .site-nav a:last-child { border-bottom: none; }
  .site-nav a::after { display: none; }
  .site-nav a.active { background: var(--primary-light); border-radius: 8px; }
  .nav-cta { display: none; }
  .nav-toggle { display: inline-flex; }
  .page-hero { padding: 72px 0 60px; }
  .page-hero h1 { font-size: 32px; }
  .hero-meta { gap: 20px; }
  .section-title { font-size: 26px; }
  .cta-inner h2 { font-size: 28px; }
  .stats-grid { gap: 30px 0; }
  .stat-divider { display: none; }
  .footer-bottom { justify-content: center; text-align: center; }
}

@media (max-width: 520px) {
  .grid-container { padding-left: 18px; padding-right: 18px; }
  .brand-text { font-size: 18px; }
  .page-hero h1 { font-size: 28px; }
  .page-hero p { font-size: 15px; }
  .hero-btns .btn { flex: 1; min-width: 140px; }
  .section-title { font-size: 23px; }
  .service-card { padding: 26px 22px; }
  .stat-number { font-size: 36px; }
  .faq-question { padding: 16px 18px; }
  .faq-answer-inner { padding: 0 18px 18px; font-size: 14px; }
  .case-body { padding: 20px 18px; }
  .content-block { flex-direction: column-reverse; }
  .content-img .img-badge { padding: 10px 14px; }
  .content-img .img-badge strong { font-size: 18px; }
}

/* roulang page: category3 */
:root {
            --primary: #0f2b5b;
            --primary-light: #1e4a8f;
            --accent: #c8a464;
            --accent-light: #e8d5b5;
            --bg: #f6f8fb;
            --bg-white: #ffffff;
            --bg-dark: #0d1b2e;
            --text: #1c2b3a;
            --text-weak: #5a6b7c;
            --border: #e4e9f0;
            --radius: 14px;
            --radius-lg: 22px;
            --shadow: 0 4px 20px rgba(15, 43, 91, 0.06);
            --shadow-lg: 0 12px 42px rgba(15, 43, 91, 0.10);
            --space-xl: 96px;
            --space-lg: 72px;
            --space-md: 48px;
            --space-sm: 24px;
            --transition: all .3s ease;
            --font-main: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-main);
            color: var(--text);
            background: var(--bg);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        button {
            cursor: pointer;
            border: none;
            font-family: inherit;
        }
        input,
        textarea {
            font-family: inherit;
        }
        .grid-container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ===== Header ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
            z-index: 1000;
            transition: var(--transition);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 30px rgba(15, 43, 91, 0.08);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 72px;
            gap: 16px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            font-size: 20px;
            font-weight: 700;
            border-radius: 10px;
            box-shadow: 0 4px 12px rgba(15, 43, 91, 0.3);
        }
        .brand-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: .5px;
        }
        .brand-text span {
            color: var(--accent);
            font-weight: 600;
        }
        .site-nav {
            display: flex;
            align-items: center;
            gap: 32px;
            margin-left: auto;
        }
        .nav-link {
            position: relative;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            padding: 8px 2px;
            line-height: 1.4;
            letter-spacing: .3px;
        }
        .nav-link::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            transition: var(--transition);
        }
        .nav-link:hover {
            color: var(--primary);
        }
        .nav-link:hover::after,
        .nav-link.active::after {
            width: 100%;
        }
        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            color: #fff;
            border-radius: 999px;
            padding: 10px 26px;
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
            box-shadow: 0 4px 14px rgba(15, 43, 91, 0.22);
            transition: var(--transition);
        }
        .nav-cta:hover {
            background: var(--primary-light);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(15, 43, 91, 0.3);
        }
        .nav-toggle {
            display: none;
            background: none;
            font-size: 24px;
            color: var(--primary);
            padding: 6px;
            border-radius: 8px;
        }
        .nav-toggle:hover {
            background: rgba(15, 43, 91, 0.06);
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            padding: 180px 0 100px;
            background-size: cover;
            background-position: center;
            color: #fff;
            overflow: hidden;
        }
        .hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(13, 27, 46, 0.92) 0%, rgba(15, 43, 91, 0.78) 45%, rgba(15, 43, 91, 0.35) 100%);
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 680px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: 999px;
            padding: 6px 18px;
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 1px;
            margin-bottom: 24px;
            backdrop-filter: blur(6px);
        }
        .hero h1 {
            font-size: 48px;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 20px;
            letter-spacing: 1px;
        }
        .hero h1 span {
            color: var(--accent);
        }
        .hero p {
            font-size: 17px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 36px;
            max-width: 560px;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border-radius: 999px;
            padding: 14px 34px;
            font-size: 15px;
            font-weight: 600;
            transition: var(--transition);
        }
        .btn-primary {
            background: var(--accent);
            color: var(--primary);
            box-shadow: 0 6px 20px rgba(200, 164, 100, 0.35);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(200, 164, 100, 0.45);
        }
        .btn-outline-light {
            background: transparent;
            border: 2px solid rgba(255, 255, 255, 0.6);
            color: #fff;
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            transform: translateY(-2px);
        }

        /* ===== Section ===== */
        .section {
            padding: var(--space-xl) 0;
        }
        .section-alt {
            background: var(--bg-white);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto var(--space-md);
        }
        .section-tag {
            display: inline-block;
            background: var(--accent-light);
            color: var(--primary);
            border-radius: 999px;
            padding: 4px 16px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 1px;
            margin-bottom: 14px;
        }
        .section-head h2 {
            font-size: 36px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.3;
            margin-bottom: 12px;
        }
        .section-head p {
            font-size: 16px;
            color: var(--text-weak);
            line-height: 1.7;
        }

        /* ===== Cards ===== */
        .service-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            padding: 36px 28px;
            height: 100%;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .service-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            opacity: 0;
            transition: var(--transition);
        }
        .service-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-6px);
            border-color: transparent;
        }
        .service-card:hover::before {
            opacity: 1;
        }
        .service-card .icon-wrap {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 60px;
            height: 60px;
            border-radius: 16px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            font-size: 24px;
            margin-bottom: 20px;
            box-shadow: 0 6px 18px rgba(15, 43, 91, 0.2);
        }
        .service-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 10px;
        }
        .service-card p {
            font-size: 15px;
            color: var(--text-weak);
            line-height: 1.7;
            margin-bottom: 14px;
        }
        .service-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
        }
        .service-card .card-link:hover {
            gap: 10px;
            color: var(--accent);
        }

        /* ===== Process ===== */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 32px;
            margin-top: 40px;
        }
        .process-step {
            position: relative;
            text-align: center;
            padding: 36px 16px;
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .process-step:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .process-step .step-num {
            width: 48px;
            height: 48px;
            margin: 0 auto 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            box-shadow: 0 4px 14px rgba(15, 43, 91, 0.25);
        }
        .process-step h4 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text);
        }
        .process-step p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.6;
        }
        .process-step::after {
            content: "→";
            position: absolute;
            top: 50%;
            right: -26px;
            transform: translateY(-50%);
            font-size: 22px;
            color: var(--accent);
            z-index: 2;
            font-weight: 700;
        }
        .process-step:last-child::after {
            display: none;
        }

        /* ===== Stats ===== */
        .stats-section {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            padding: 72px 0;
            color: #fff;
            text-align: center;
        }
        .stats-section .stat-item {
            padding: 20px;
        }
        .stats-section .stat-num {
            font-size: 48px;
            font-weight: 800;
            line-height: 1.2;
            color: var(--accent);
            margin-bottom: 6px;
        }
        .stats-section .stat-label {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.8);
        }

        /* ===== Content cards ===== */
        .content-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: var(--transition);
        }
        .content-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-5px);
        }
        .content-card .content-img {
            height: 200px;
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .content-card .content-img::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 50%, rgba(13, 27, 46, 0.3));
        }
        .content-card .content-body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .content-card .content-tag {
            display: inline-block;
            background: var(--accent-light);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 2px 12px;
            border-radius: 999px;
            margin-bottom: 12px;
            width: fit-content;
        }
        .content-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            line-height: 1.45;
            margin-bottom: 10px;
        }
        .content-card p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.65;
            flex: 1;
            margin-bottom: 14px;
        }
        .content-card .content-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 13px;
            color: var(--text-weak);
        }
        .content-card .content-meta i {
            color: var(--accent);
        }

        /* ===== FAQ ===== */
        .faq-wrap {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--accent);
        }
        .faq-item summary {
            padding: 22px 28px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            color: var(--text);
            transition: var(--transition);
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::after {
            content: "\f078";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 14px;
            color: var(--accent);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item[open] summary::after {
            transform: rotate(180deg);
        }
        .faq-item .faq-answer {
            padding: 0 28px 22px;
            font-size: 15px;
            color: var(--text-weak);
            line-height: 1.75;
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            padding: 90px 0;
            background-size: cover;
            background-position: center;
            color: #fff;
            text-align: center;
            overflow: hidden;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 27, 46, 0.94), rgba(15, 43, 91, 0.82));
        }
        .cta-inner {
            position: relative;
            z-index: 2;
            max-width: 720px;
            margin: 0 auto;
        }
        .cta-inner h2 {
            font-size: 38px;
            font-weight: 800;
            margin-bottom: 16px;
            line-height: 1.3;
        }
        .cta-inner p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 32px;
        }
        .cta-inner .btn-cta {
            background: var(--accent);
            color: var(--primary);
            padding: 16px 44px;
            font-size: 16px;
            border-radius: 999px;
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            transition: var(--transition);
            box-shadow: 0 8px 24px rgba(200, 164, 100, 0.4);
        }
        .cta-inner .btn-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(200, 164, 100, 0.5);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 72px 0 0;
        }
        .footer-top {
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand h3 {
            font-size: 26px;
            color: #fff;
            font-weight: 700;
            margin-bottom: 14px;
        }
        .footer-brand h3 span {
            color: var(--accent);
        }
        .footer-brand p {
            font-size: 15px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.65);
            max-width: 360px;
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 18px;
            position: relative;
            padding-bottom: 8px;
        }
        .footer-col h4::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 24px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .footer-col ul a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 22px 0;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.4);
            flex-wrap: wrap;
            gap: 8px;
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb {
            padding: 14px 0;
            font-size: 14px;
            color: var(--text-weak);
            border-bottom: 1px solid var(--border);
            background: var(--bg-white);
        }
        .breadcrumb a {
            color: var(--primary);
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb i {
            margin: 0 8px;
            font-size: 12px;
            color: #b0b8c4;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .process-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 24px;
            }
            .process-step::after {
                display: none;
            }
        }
        @media (max-width: 768px) {
            :root {
                --space-xl: 64px;
                --space-lg: 48px;
            }
            .site-nav {
                position: fixed;
                top: 72px;
                right: 0;
                width: 100%;
                max-width: 340px;
                height: calc(100vh - 72px);
                background: var(--bg-white);
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
                padding: 24px 28px;
                box-shadow: -12px 0 40px rgba(15, 43, 91, 0.12);
                transform: translateX(100%);
                transition: transform .35s ease;
                overflow-y: auto;
                z-index: 999;
                border-left: 1px solid var(--border);
            }
            .site-nav.open {
                transform: translateX(0);
            }
            .site-nav .nav-link {
                display: block;
                width: 100%;
                padding: 14px 8px;
                font-size: 16px;
                border-bottom: 1px solid rgba(15, 43, 91, 0.06);
            }
            .site-nav .nav-link::after {
                display: none;
            }
            .site-nav .nav-link.active {
                color: var(--accent);
                background: rgba(15, 43, 91, 0.04);
                border-radius: 8px;
            }
            .nav-cta {
                display: none;
            }
            .nav-toggle {
                display: inline-flex;
                align-items: center;
                justify-content: center;
                width: 44px;
                height: 44px;
            }
            .hero {
                padding: 140px 0 80px;
            }
            .hero h1 {
                font-size: 34px;
            }
            .hero p {
                font-size: 16px;
            }
            .section-head h2 {
                font-size: 28px;
            }
            .process-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stats-section .stat-num {
                font-size: 36px;
            }
            .cta-inner h2 {
                font-size: 30px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .grid-container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .hero h1 {
                font-size: 28px;
            }
            .hero p {
                font-size: 15px;
            }
            .btn {
                padding: 12px 24px;
                font-size: 14px;
            }
            .process-grid {
                grid-template-columns: 1fr;
            }
            .stats-section .stat-num {
                font-size: 32px;
            }
            .section-head h2 {
                font-size: 24px;
            }
            .footer-bottom {
                flex-direction: column;
            }
        }

        /* ===== Misc ===== */
        .text-accent {
            color: var(--accent);
        }
        .mb-1 {
            margin-bottom: 8px;
        }
        .mb-2 {
            margin-bottom: 16px;
        }
        .mb-3 {
            margin-bottom: 24px;
        }
        .mb-4 {
            margin-bottom: 40px;
        }
        .text-center {
            text-align: center;
        }