/* roulang page: index */
/* ===== Design Variables ===== */
:root {
  --primary: #0f1e2e;
  --primary-light: #1a2f44;
  --brand: #31848c;
  --brand-light: #4aacb5;
  --brand-dark: #256c73;
  --accent: #e8b84b;
  --bg: #f4f6f9;
  --bg-card: #ffffff;
  --bg-dark: #0b1621;
  --text: #1a2a3a;
  --text-light: #5a6a7a;
  --text-lighter: #8a9aaa;
  --border: #e2e8f0;
  --border-light: #f0f2f5;
  --radius: 10px;
  --radius-sm: 6px;
  --radius-lg: 16px;
  --shadow: 0 4px 20px rgba(0,0,0,0.06);
  --shadow-hover: 0 12px 40px rgba(0,0,0,0.10);
  --shadow-card: 0 2px 12px rgba(0,0,0,0.05);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
  --container: 1200px;
  --nav-height: 72px;
}

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

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

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

a { color: var(--brand); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--brand-dark); }
a:focus-visible { outline: 2px solid var(--brand-light); outline-offset: 2px; border-radius: 2px; }

img { max-width: 100%; height: auto; display: block; }
button, input, textarea { font-family: inherit; font-size: inherit; }
button { cursor: pointer; border: none; background: none; }
ul, ol { list-style: none; }

/* ===== Utility ===== */
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

.section { padding: 80px 0; }
.section-title {
  font-size: 32px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 12px;
  letter-spacing: -0.3px;
  line-height: 1.3;
}
.section-subtitle {
  font-size: 17px;
  color: var(--text-light);
  max-width: 640px;
  line-height: 1.7;
  margin-bottom: 40px;
}
.section-header { text-align: center; margin-bottom: 48px; }
.section-header .section-subtitle { margin-left: auto; margin-right: auto; }

/* ===== Button ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 15px;
  line-height: 1.4;
  transition: all var(--transition);
  border: 2px solid transparent;
  letter-spacing: 0.2px;
}
.btn-primary {
  background: var(--brand);
  color: #fff;
  border-color: var(--brand);
}
.btn-primary:hover {
  background: var(--brand-dark);
  border-color: var(--brand-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(49, 132, 140, 0.30);
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(49, 132, 140, 0.20);
}
.btn-outline {
  background: transparent;
  color: var(--brand);
  border-color: var(--brand);
}
.btn-outline:hover {
  background: var(--brand);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(49, 132, 140, 0.20);
}
.btn-outline:active {
  transform: translateY(0);
}
.btn-lg { padding: 16px 36px; font-size: 17px; border-radius: var(--radius); }
.btn-sm { padding: 8px 18px; font-size: 13px; }

/* ===== Header / Nav ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border-light);
  z-index: 1000;
  transition: background var(--transition);
}
.site-header.scrolled { background: rgba(255,255,255,0.98); box-shadow: 0 1px 12px rgba(0,0,0,0.06); }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-height);
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.logo {
  font-size: 22px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.5px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.logo i { color: var(--brand); font-size: 20px; }
.logo:hover { color: var(--primary); }

.nav-main { display: flex; align-items: center; gap: 36px; }
.nav-main a {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-light);
  padding: 6px 0;
  position: relative;
  transition: color var(--transition);
  letter-spacing: 0.1px;
}
.nav-main a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--brand);
  border-radius: 2px;
  transition: width var(--transition);
}
.nav-main a:hover { color: var(--text); }
.nav-main a:hover::after { width: 100%; }
.nav-main a.active { color: var(--brand); }
.nav-main a.active::after { width: 100%; }

.nav-toggle {
  display: none;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--text);
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}
.nav-toggle:hover { background: var(--border-light); }

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 640px;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  background: var(--primary);
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  opacity: 0.30;
  mix-blend-mode: overlay;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(15,30,46,0.92) 0%, rgba(15,30,46,0.70) 60%, rgba(49,132,140,0.30) 100%);
}
.hero .container { position: relative; z-index: 2; width: 100%; }
.hero-content { max-width: 680px; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(49,132,140,0.20);
  border: 1px solid rgba(74,172,181,0.30);
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 500;
  color: var(--brand-light);
  margin-bottom: 20px;
  letter-spacing: 0.4px;
}
.hero-badge i { font-size: 12px; }
.hero h1 {
  font-size: 48px;
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
  letter-spacing: -0.5px;
  margin-bottom: 16px;
}
.hero h1 span { color: var(--brand-light); }
.hero p {
  font-size: 18px;
  color: rgba(255,255,255,0.75);
  line-height: 1.7;
  margin-bottom: 32px;
  max-width: 560px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-actions .btn-primary {
  background: var(--brand);
  border-color: var(--brand);
}
.hero-actions .btn-primary:hover { background: var(--brand-light); border-color: var(--brand-light); }
.hero-actions .btn-outline {
  color: #fff;
  border-color: rgba(255,255,255,0.40);
}
.hero-actions .btn-outline:hover { background: rgba(255,255,255,0.10); border-color: rgba(255,255,255,0.60); color: #fff; }

/* ===== Stats Strip ===== */
.stats-strip {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-light);
  padding: 28px 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4,1fr);
  gap: 24px;
}
.stat-item { text-align: center; }
.stat-number {
  font-size: 36px;
  font-weight: 800;
  color: var(--brand);
  line-height: 1.2;
  letter-spacing: -0.3px;
}
.stat-label { font-size: 14px; color: var(--text-light); margin-top: 4px; }

/* ===== Categories ===== */
.categories { background: var(--bg); }
.categories-grid {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 28px;
}
.cat-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: all var(--transition);
  border: 1px solid var(--border-light);
}
.cat-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: var(--border);
}
.cat-card-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}
.cat-card-body { padding: 24px 28px 28px; }
.cat-card-body h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
}
.cat-card-body p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 16px;
}
.cat-card-body .btn { margin-top: 4px; }

/* ===== Features ===== */
.features { background: var(--bg-card); }
.features-grid {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 32px;
}
.feature-card {
  padding: 32px 28px;
  border-radius: var(--radius);
  border: 1px solid var(--border-light);
  transition: all var(--transition);
  background: var(--bg);
}
.feature-card:hover {
  border-color: var(--border);
  box-shadow: var(--shadow-card);
  transform: translateY(-3px);
}
.feature-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: rgba(49,132,140,0.10);
  color: var(--brand);
  font-size: 22px;
  margin-bottom: 18px;
}
.feature-card h4 {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
}
.feature-card p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
}

/* ===== Latest News ===== */
.latest-news { background: var(--bg); }
.news-grid {
  display: grid;
  grid-template-columns: repeat(2,1fr);
  gap: 28px;
}
.news-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border-light);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}
.news-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--border);
}
.news-card-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}
.news-card-body { padding: 24px 28px 28px; flex: 1; display: flex; flex-direction: column; }
.news-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--text-lighter);
  margin-bottom: 10px;
}
.news-meta .tag {
  display: inline-block;
  padding: 2px 12px;
  border-radius: 50px;
  background: rgba(49,132,140,0.08);
  color: var(--brand);
  font-weight: 500;
  font-size: 12px;
}
.news-card-body h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
  line-height: 1.4;
}
.news-card-body h3 a { color: inherit; }
.news-card-body h3 a:hover { color: var(--brand); }
.news-card-body p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
  flex: 1;
  margin-bottom: 12px;
}
.news-card-body .btn { align-self: flex-start; }
.news-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 20px;
  color: var(--text-lighter);
  font-size: 16px;
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px dashed var(--border);
}

/* ===== FAQ ===== */
.faq { background: var(--bg-card); }
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  border-bottom: 1px solid var(--border-light);
  padding: 20px 0;
}
.faq-item:first-child { padding-top: 0; }
.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  cursor: pointer;
  font-size: 17px;
  font-weight: 600;
  color: var(--primary);
  line-height: 1.5;
  user-select: none;
}
.faq-question i {
  font-size: 14px;
  color: var(--text-lighter);
  transition: transform var(--transition);
  flex-shrink: 0;
}
.faq-item.open .faq-question i { transform: rotate(180deg); color: var(--brand); }
.faq-answer {
  padding-top: 12px;
  font-size: 15px;
  color: var(--text-light);
  line-height: 1.7;
  display: none;
}
.faq-item.open .faq-answer { display: block; }

/* ===== CTA ===== */
.cta-section {
  background: var(--primary);
  position: relative;
  overflow: hidden;
  padding: 80px 0;
}
.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
  opacity: 0.10;
  mix-blend-mode: overlay;
}
.cta-section .container { position: relative; z-index: 2; text-align: center; }
.cta-section h2 {
  font-size: 36px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
  letter-spacing: -0.3px;
}
.cta-section p {
  font-size: 17px;
  color: rgba(255,255,255,0.70);
  max-width: 540px;
  margin: 0 auto 28px;
  line-height: 1.7;
}
.cta-section .btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--primary);
}
.cta-section .btn-primary:hover {
  background: #f0c85e;
  border-color: #f0c85e;
  box-shadow: 0 8px 28px rgba(232,184,75,0.35);
  color: var(--primary);
}

/* ===== Footer ===== */
.site-footer {
  background: var(--bg-dark);
  color: rgba(255,255,255,0.65);
  padding: 48px 0 24px;
}
.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 32px;
}
.footer-brand .logo { color: #fff; margin-bottom: 12px; }
.footer-brand .logo i { color: var(--brand-light); }
.footer-brand p { font-size: 14px; line-height: 1.7; max-width: 320px; color: rgba(255,255,255,0.50); }
.footer-col h5 {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
  letter-spacing: 0.3px;
  text-transform: uppercase;
}
.footer-col a {
  display: block;
  font-size: 14px;
  color: rgba(255,255,255,0.50);
  padding: 4px 0;
  transition: color var(--transition);
}
.footer-col a:hover { color: var(--brand-light); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: rgba(255,255,255,0.35);
}
.footer-bottom a { color: rgba(255,255,255,0.35); }
.footer-bottom a:hover { color: var(--brand-light); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .hero h1 { font-size: 38px; }
  .stats-grid { grid-template-columns: repeat(2,1fr); gap: 16px; }
  .categories-grid { grid-template-columns: repeat(2,1fr); }
  .features-grid { grid-template-columns: repeat(2,1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-main {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    width: 100%;
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    flex-direction: column;
    padding: 20px 24px 28px;
    gap: 16px;
    border-bottom: 1px solid var(--border-light);
    box-shadow: 0 12px 32px rgba(0,0,0,0.08);
    display: none;
    z-index: 999;
  }
  .nav-main.open { display: flex; }
  .nav-main a { font-size: 17px; padding: 8px 0; width: 100%; }
  .nav-toggle { display: flex; }

  .hero { min-height: 480px; padding: 100px 0 60px; }
  .hero h1 { font-size: 30px; }
  .hero p { font-size: 16px; }

  .section { padding: 56px 0; }
  .section-title { font-size: 26px; }

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

  .footer-inner { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; text-align: center; }

  .cta-section h2 { font-size: 28px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .hero h1 { font-size: 26px; }
  .stats-grid { grid-template-columns: repeat(2,1fr); gap: 12px; }
  .stat-number { font-size: 28px; }
  .section-title { font-size: 22px; }
  .news-card-body { padding: 18px 20px 22px; }
  .cat-card-body { padding: 18px 20px 22px; }
  .feature-card { padding: 24px 20px; }
}

/* roulang page: category1 */
/* ===== Design Variables ===== */
:root {
  --primary: #0a7e6f;
  --primary-light: #0f9b89;
  --primary-dark: #065f54;
  --secondary: #1a2a3a;
  --accent: #f5b642;
  --bg-body: #f4f6f9;
  --bg-card: #ffffff;
  --bg-dark: #0f1a24;
  --bg-section-alt: #eef2f7;
  --text-main: #1e2a3a;
  --text-light: #5a6a7a;
  --text-white: #f0f4f8;
  --border: #dce2ea;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-xs: 6px;
  --shadow: 0 8px 30px rgba(0,0,0,0.06);
  --shadow-hover: 0 18px 45px rgba(0,0,0,0.10);
  --transition: 0.25s cubic-bezier(0.2,0,0,1);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --container: 1200px;
  --nav-height: 68px;
}
/* ===== Reset & Base ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--text-main);background:var(--bg-body);line-height:1.6;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color var(--transition)}
a:focus-visible,.btn:focus-visible,button:focus-visible{outline:2px solid var(--primary);outline-offset:3px}
ul{list-style:none}
button{cursor:pointer;font-family:inherit}
/* ===== Container ===== */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
/* ===== Header / Navigation ===== */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,0.92);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border);height:var(--nav-height)}
.header-inner{max-width:var(--container);margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;height:100%}
.logo{display:flex;align-items:center;gap:8px;font-weight:700;font-size:1.45rem;color:var(--primary);letter-spacing:-0.3px}
.logo i{font-size:1.3rem;color:var(--accent)}
.nav-main{display:flex;align-items:center;gap:8px}
.nav-main a{position:relative;padding:8px 16px;font-size:0.95rem;font-weight:500;color:var(--text-light);border-radius:var(--radius-xs);transition:all var(--transition)}
.nav-main a:hover{color:var(--primary);background:rgba(10,126,111,0.06)}
.nav-main a.active{color:var(--primary);background:rgba(10,126,111,0.10);font-weight:600}
.nav-main a.active::after{content:'';position:absolute;bottom:2px;left:50%;transform:translateX(-50%);width:20px;height:3px;background:var(--primary);border-radius:3px}
.nav-toggle{display:none;background:none;border:none;font-size:1.4rem;color:var(--text-main);padding:6px 10px;border-radius:var(--radius-xs)}
/* ===== Hero / Banner ===== */
.category-hero{position:relative;padding:80px 0 70px;background:linear-gradient(135deg, var(--bg-dark) 0%, #1d3343 100%);overflow:hidden;min-height:320px;display:flex;align-items:center}
.category-hero::before{content:'';position:absolute;inset:0;background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;opacity:0.12;pointer-events:none}
.category-hero .hero-content{position:relative;z-index:2;max-width:760px}
.category-hero .hero-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(245,182,66,0.15);color:var(--accent);padding:6px 16px;border-radius:30px;font-size:0.85rem;font-weight:500;margin-bottom:18px;border:1px solid rgba(245,182,66,0.20)}
.category-hero h1{font-size:2.8rem;font-weight:800;color:var(--text-white);line-height:1.2;margin-bottom:18px;letter-spacing:-0.5px}
.category-hero h1 span{color:var(--accent)}
.category-hero p{font-size:1.15rem;color:rgba(240,248,255,0.8);max-width:600px;line-height:1.7}
.hero-stats{display:flex;gap:40px;margin-top:36px;padding-top:28px;border-top:1px solid rgba(255,255,255,0.08)}
.hero-stats .stat-item{text-align:center}
.hero-stats .stat-num{font-size:2rem;font-weight:700;color:var(--text-white);letter-spacing:-0.5px}
.hero-stats .stat-num small{font-size:1rem;color:var(--accent);font-weight:500}
.hero-stats .stat-label{font-size:0.85rem;color:rgba(240,248,255,0.6);margin-top:2px}
/* ===== Section Common ===== */
.section{padding:80px 0}
.section-alt{background:var(--bg-section-alt)}
.section-white{background:var(--bg-card)}
.section-dark{background:var(--bg-dark);color:var(--text-white)}
.section-header{text-align:center;margin-bottom:48px}
.section-header .tag{display:inline-block;background:rgba(10,126,111,0.10);color:var(--primary);padding:4px 16px;border-radius:30px;font-size:0.80rem;font-weight:600;text-transform:uppercase;letter-spacing:0.5px;margin-bottom:12px}
.section-header h2{font-size:2.2rem;font-weight:700;color:var(--text-main);letter-spacing:-0.3px;line-height:1.25}
.section-alt .section-header h2,.section-white .section-header h2{color:var(--text-main)}
.section-dark .section-header h2{color:var(--text-white)}
.section-header p{font-size:1.05rem;color:var(--text-light);max-width:580px;margin:10px auto 0}
.section-dark .section-header p{color:rgba(240,248,255,0.7)}
/* ===== Steps / Flow ===== */
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:20px}
.step-card{background:var(--bg-card);border-radius:var(--radius);padding:32px 26px;text-align:center;box-shadow:var(--shadow);border:1px solid var(--border);transition:all var(--transition);position:relative}
.step-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.step-num{width:48px;height:48px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:1.2rem;font-weight:700;margin:0 auto 16px;position:relative}
.step-num::after{content:'';position:absolute;top:50%;left:calc(100% + 8px);width:30px;height:2px;background:var(--border);display:none}
.steps-grid .step-card:not(:last-child) .step-num::after{display:block}
.step-card h3{font-size:1.15rem;font-weight:600;margin-bottom:8px;color:var(--text-main)}
.step-card p{font-size:0.92rem;color:var(--text-light);line-height:1.6}
/* ===== Card Grid ===== */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.card{background:var(--bg-card);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--border);transition:all var(--transition);display:flex;flex-direction:column}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover)}
.card-img{width:100%;height:200px;object-fit:cover;display:block;background:var(--bg-section-alt)}
.card-body{padding:22px 24px 26px;flex:1;display:flex;flex-direction:column}
.card-body .card-tag{display:inline-block;background:rgba(10,126,111,0.08);color:var(--primary);padding:2px 12px;border-radius:30px;font-size:0.75rem;font-weight:500;margin-bottom:10px;align-self:flex-start}
.card-body h3{font-size:1.15rem;font-weight:600;margin-bottom:8px;color:var(--text-main);line-height:1.35}
.card-body p{font-size:0.92rem;color:var(--text-light);line-height:1.6;flex:1}
.card-body .card-meta{display:flex;align-items:center;justify-content:space-between;margin-top:16px;padding-top:14px;border-top:1px solid var(--border);font-size:0.82rem;color:var(--text-light)}
.card-body .card-meta i{margin-right:4px}
/* ===== FAQ ===== */
.faq-list{max-width:800px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{background:var(--bg-card);border-radius:var(--radius-sm);border:1px solid var(--border);overflow:hidden;transition:all var(--transition)}
.faq-item:hover{border-color:var(--primary-light)}
.faq-q{width:100%;padding:18px 24px;background:none;border:none;display:flex;align-items:center;justify-content:space-between;font-size:1.02rem;font-weight:500;color:var(--text-main);text-align:left;transition:background var(--transition)}
.faq-q:hover{background:rgba(10,126,111,0.03)}
.faq-q i{color:var(--primary);transition:transform var(--transition);font-size:0.9rem}
.faq-item.open .faq-q i{transform:rotate(180deg)}
.faq-a{padding:0 24px 18px;font-size:0.95rem;color:var(--text-light);line-height:1.7;display:none}
.faq-item.open .faq-a{display:block}
/* ===== CTA ===== */
.cta-section{background:linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);padding:70px 0;text-align:center;position:relative;overflow:hidden}
.cta-section::before{content:'';position:absolute;inset:0;background:url('/assets/images/backpic/back-3.png') center/cover no-repeat;opacity:0.06;pointer-events:none}
.cta-section .container{position:relative;z-index:2}
.cta-section h2{font-size:2.2rem;font-weight:700;color:#fff;margin-bottom:14px;letter-spacing:-0.3px}
.cta-section p{font-size:1.1rem;color:rgba(255,255,255,0.85);max-width:560px;margin:0 auto 28px}
.btn-group{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 34px;border-radius:50px;font-size:1rem;font-weight:600;border:none;transition:all var(--transition);text-decoration:none}
.btn-primary{background:var(--accent);color:var(--bg-dark);box-shadow:0 6px 20px rgba(245,182,66,0.35)}
.btn-primary:hover{background:#f0c04d;transform:translateY(-2px);box-shadow:0 10px 30px rgba(245,182,66,0.40)}
.btn-outline{background:transparent;color:#fff;border:2px solid rgba(255,255,255,0.5)}
.btn-outline:hover{background:rgba(255,255,255,0.12);border-color:#fff;transform:translateY(-2px)}
.btn-sm{padding:10px 24px;font-size:0.88rem}
/* ===== Footer ===== */
.site-footer{background:var(--bg-dark);color:rgba(240,248,255,0.7);padding:56px 0 28px;font-size:0.92rem}
.footer-inner{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,0.06)}
.footer-brand .logo{font-size:1.5rem;color:#fff;margin-bottom:14px}
.footer-brand p{max-width:340px;line-height:1.7;color:rgba(240,248,255,0.6);font-size:0.92rem}
.footer-col h5{color:#fff;font-size:0.95rem;font-weight:600;margin-bottom:16px;letter-spacing:0.3px}
.footer-col a{display:block;padding:4px 0;color:rgba(240,248,255,0.6);transition:color var(--transition);font-size:0.90rem}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:20px;font-size:0.82rem;color:rgba(240,248,255,0.4);flex-wrap:wrap;gap:8px}
.footer-bottom a{color:rgba(240,248,255,0.5)}
.footer-bottom a:hover{color:var(--accent)}
/* ===== Responsive ===== */
@media (max-width:1024px){
  .steps-grid{grid-template-columns:repeat(2,1fr)}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .footer-inner{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:768px){
  .nav-main{position:fixed;top:var(--nav-height);left:0;width:100%;background:rgba(255,255,255,0.98);backdrop-filter:blur(12px);flex-direction:column;padding:16px 24px 24px;gap:4px;box-shadow:0 20px 40px rgba(0,0,0,0.06);transform:translateY(-120%);opacity:0;transition:all 0.35s cubic-bezier(0.2,0,0,1);border-bottom:1px solid var(--border);border-radius:0 0 var(--radius) var(--radius)}
  .nav-main.open{transform:translateY(0);opacity:1}
  .nav-main a{padding:12px 16px;width:100%;border-radius:var(--radius-xs);font-size:1rem}
  .nav-main a.active{background:rgba(10,126,111,0.08)}
  .nav-main a.active::after{display:none}
  .nav-toggle{display:block}
  .category-hero h1{font-size:2rem}
  .hero-stats{gap:20px;flex-wrap:wrap}
  .hero-stats .stat-item{flex:1;min-width:80px}
  .hero-stats .stat-num{font-size:1.5rem}
  .section{padding:56px 0}
  .section-header h2{font-size:1.7rem}
  .steps-grid{grid-template-columns:1fr}
  .step-card{padding:24px 20px}
  .step-num::after{display:none !important}
  .card-grid{grid-template-columns:1fr;gap:20px}
  .faq-q{padding:14px 18px;font-size:0.95rem}
  .faq-a{padding:0 18px 14px}
  .cta-section h2{font-size:1.7rem}
  .btn{padding:12px 28px;font-size:0.92rem}
  .footer-inner{grid-template-columns:1fr;gap:24px;text-align:center}
  .footer-brand p{margin:0 auto}
  .footer-bottom{flex-direction:column;text-align:center}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .header-inner{padding:0 16px}
  .category-hero{padding:60px 0 50px}
  .category-hero h1{font-size:1.6rem}
  .hero-stats{gap:12px}
  .hero-stats .stat-item{min-width:70px}
  .hero-stats .stat-num{font-size:1.3rem}
  .section{padding:40px 0}
  .section-header h2{font-size:1.4rem}
  .card-body{padding:18px 18px 22px}
}

/* roulang page: article */
:root {
  --primary: #0a6e5a;
  --primary-light: #0f8b72;
  --primary-dark: #065244;
  --primary-bg: #e8f5f1;
  --accent: #f5a623;
  --accent-hover: #e09412;
  --bg: #ffffff;
  --bg-alt: #f7f9fa;
  --bg-dark: #1a2328;
  --text: #1e2a32;
  --text-light: #5a6b77;
  --text-muted: #8a9aa8;
  --border: #e2e8ed;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
  --shadow: 0 6px 24px rgba(0,0,0,0.06);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.08);
  --transition: 0.25s ease;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --container: 1200px;
  --content-width: 780px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); color: var(--text); background: var(--bg); line-height: 1.7; -webkit-font-smoothing: antialiased; }
a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary-light); }
img { max-width: 100%; height: auto; display: block; }
button, input, textarea { font: inherit; }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 { line-height: 1.25; color: var(--text); }
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }
/* Header */
.site-header { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,0.92); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid var(--border); transition: box-shadow var(--transition); }
.site-header.scrolled { box-shadow: 0 2px 20px rgba(0,0,0,0.05); }
.header-inner { display: flex; align-items: center; justify-content: space-between; max-width: var(--container); margin: 0 auto; padding: 0 24px; height: 68px; }
.logo { font-size: 1.5rem; font-weight: 700; color: var(--primary); display: flex; align-items: center; gap: 8px; letter-spacing: -0.5px; }
.logo i { font-size: 1.3rem; color: var(--accent); }
.logo:hover { color: var(--primary-light); }
.nav-main { display: flex; align-items: center; gap: 6px; }
.nav-main a { position: relative; padding: 8px 18px; font-size: 0.95rem; font-weight: 500; color: var(--text-light); border-radius: 8px; transition: all var(--transition); letter-spacing: 0.2px; }
.nav-main a:hover { color: var(--primary); background: var(--primary-bg); }
.nav-main a.active { color: var(--primary); background: var(--primary-bg); font-weight: 600; }
.nav-main a.active::after { content: ''; position: absolute; bottom: 2px; left: 50%; transform: translateX(-50%); width: 20px; height: 3px; background: var(--primary); border-radius: 4px; }
.nav-toggle { display: none; background: none; border: none; font-size: 1.4rem; color: var(--text); cursor: pointer; padding: 8px; border-radius: 8px; transition: background var(--transition); }
.nav-toggle:hover { background: var(--bg-alt); }
/* Article Hero */
.article-hero { position: relative; padding: 80px 0 60px; background: var(--bg-dark); background-image: url('/assets/images/backpic/back-2.png'); background-size: cover; background-position: center; background-blend-mode: overlay; color: #fff; }
.article-hero::before { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(6,82,68,0.85) 0%, rgba(26,35,40,0.75) 100%); }
.article-hero .container { position: relative; z-index: 2; }
.article-hero .cat-tag { display: inline-block; padding: 5px 16px; background: var(--accent); color: #fff; font-size: 0.8rem; font-weight: 600; border-radius: 20px; letter-spacing: 0.5px; margin-bottom: 20px; }
.article-hero h1 { font-size: 2.6rem; font-weight: 800; color: #fff; max-width: 800px; line-height: 1.2; margin-bottom: 16px; letter-spacing: -0.5px; }
.article-hero .meta { display: flex; align-items: center; gap: 20px; font-size: 0.9rem; color: rgba(255,255,255,0.7); }
.article-hero .meta i { margin-right: 5px; }
.article-hero .meta span { display: flex; align-items: center; }
/* Article Main */
.article-main { padding: 60px 0 40px; background: var(--bg); }
.article-body { max-width: var(--content-width); margin: 0 auto; }
.article-body .content { font-size: 1.05rem; line-height: 1.9; color: var(--text); }
.article-body .content p { margin-bottom: 1.5em; }
.article-body .content h2, .article-body .content h3 { margin-top: 1.8em; margin-bottom: 0.8em; color: var(--text); }
.article-body .content ul, .article-body .content ol { margin-bottom: 1.5em; padding-left: 1.8em; }
.article-body .content li { margin-bottom: 0.5em; list-style: disc; }
.article-body .content blockquote { border-left: 4px solid var(--primary); padding: 12px 24px; margin: 1.5em 0; background: var(--bg-alt); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; color: var(--text-light); font-style: italic; }
.article-body .content img { border-radius: var(--radius); margin: 1.5em 0; box-shadow: var(--shadow-sm); }
.article-body .content a { color: var(--primary); text-decoration: underline; text-underline-offset: 3px; }
/* Article Footer Info */
.article-info { max-width: var(--content-width); margin: 40px auto 0; padding-top: 32px; border-top: 1px solid var(--border); display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 16px; }
.article-info .cat { display: flex; align-items: center; gap: 8px; color: var(--text-light); font-size: 0.9rem; }
.article-info .cat i { color: var(--primary); }
.article-info .share { display: flex; align-items: center; gap: 10px; }
.article-info .share a { display: inline-flex; align-items: center; justify-content: center; width: 36px; height: 36px; border-radius: 50%; background: var(--bg-alt); color: var(--text-light); font-size: 1rem; transition: all var(--transition); }
.article-info .share a:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
/* Related */
.related-section { padding: 60px 0; background: var(--bg-alt); }
.related-section .section-title { text-align: center; margin-bottom: 40px; }
.related-section .section-title h2 { font-size: 1.8rem; font-weight: 700; color: var(--text); }
.related-section .section-title p { color: var(--text-light); margin-top: 8px; font-size: 1rem; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.related-card { background: var(--bg); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm); transition: all var(--transition); border: 1px solid var(--border); }
.related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.related-card .card-img { width: 100%; height: 180px; object-fit: cover; }
.related-card .card-body { padding: 20px; }
.related-card .card-body .card-cat { font-size: 0.75rem; color: var(--primary); font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 6px; }
.related-card .card-body h3 { font-size: 1.05rem; font-weight: 600; margin-bottom: 8px; line-height: 1.4; }
.related-card .card-body h3 a { color: var(--text); }
.related-card .card-body h3 a:hover { color: var(--primary); }
.related-card .card-body p { font-size: 0.88rem; color: var(--text-light); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.related-card .card-body .card-meta { margin-top: 12px; font-size: 0.8rem; color: var(--text-muted); display: flex; align-items: center; gap: 12px; }
/* Error state */
.error-state { text-align: center; padding: 100px 24px; }
.error-state i { font-size: 3.5rem; color: var(--text-muted); margin-bottom: 20px; display: block; }
.error-state h2 { font-size: 1.8rem; color: var(--text); margin-bottom: 12px; }
.error-state p { color: var(--text-light); max-width: 480px; margin: 0 auto 24px; }
.error-state .btn { display: inline-block; padding: 12px 32px; background: var(--primary); color: #fff; border-radius: 8px; font-weight: 600; transition: all var(--transition); }
.error-state .btn:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: var(--shadow); }
/* CTA */
.cta-section { padding: 60px 0; background: var(--bg-dark); background-image: url('/assets/images/backpic/back-3.png'); background-size: cover; background-position: center; background-blend-mode: overlay; position: relative; }
.cta-section::before { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(6,82,68,0.88) 0%, rgba(26,35,40,0.82) 100%); }
.cta-section .container { position: relative; z-index: 2; text-align: center; }
.cta-section h2 { font-size: 2rem; font-weight: 700; color: #fff; margin-bottom: 12px; }
.cta-section p { font-size: 1.05rem; color: rgba(255,255,255,0.75); max-width: 600px; margin: 0 auto 28px; }
.cta-section .btn-group { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.cta-section .btn-primary { padding: 14px 36px; background: var(--accent); color: #fff; border-radius: 8px; font-weight: 600; font-size: 1rem; transition: all var(--transition); border: none; cursor: pointer; }
.cta-section .btn-primary:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: var(--shadow); }
.cta-section .btn-outline { padding: 14px 36px; background: transparent; color: #fff; border-radius: 8px; font-weight: 600; font-size: 1rem; border: 2px solid rgba(255,255,255,0.4); transition: all var(--transition); }
.cta-section .btn-outline:hover { border-color: #fff; background: rgba(255,255,255,0.1); transform: translateY(-2px); }
/* Footer */
.site-footer { background: var(--bg-dark); color: rgba(255,255,255,0.7); padding: 56px 0 0; }
.footer-inner { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 32px; border-bottom: 1px solid rgba(255,255,255,0.08); }
.footer-brand .logo { color: #fff; margin-bottom: 12px; font-size: 1.4rem; }
.footer-brand .logo i { color: var(--accent); }
.footer-brand p { font-size: 0.9rem; line-height: 1.7; max-width: 340px; color: rgba(255,255,255,0.55); }
.footer-col h5 { color: #fff; font-size: 0.95rem; font-weight: 600; margin-bottom: 16px; letter-spacing: 0.3px; }
.footer-col a { display: block; color: rgba(255,255,255,0.55); font-size: 0.9rem; padding: 4px 0; transition: all var(--transition); }
.footer-col a:hover { color: #fff; padding-left: 4px; }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; padding: 20px 0; font-size: 0.82rem; color: rgba(255,255,255,0.35); }
.footer-bottom a { color: rgba(255,255,255,0.4); }
.footer-bottom a:hover { color: #fff; }
/* Responsive */
@media (max-width: 1024px) {
  .article-hero h1 { font-size: 2.1rem; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .nav-main { display: none; flex-direction: column; position: absolute; top: 68px; left: 0; right: 0; background: rgba(255,255,255,0.98); backdrop-filter: blur(12px); border-bottom: 1px solid var(--border); padding: 16px 24px; gap: 4px; box-shadow: var(--shadow); }
  .nav-main.open { display: flex; }
  .nav-main a { width: 100%; padding: 12px 16px; border-radius: 8px; }
  .nav-main a.active::after { display: none; }
  .nav-main a.active { background: var(--primary-bg); }
  .nav-toggle { display: block; }
  .header-inner { height: 60px; }
  .article-hero { padding: 50px 0 40px; }
  .article-hero h1 { font-size: 1.6rem; }
  .article-hero .meta { flex-wrap: wrap; gap: 12px; font-size: 0.82rem; }
  .article-main { padding: 36px 0 24px; }
  .article-body .content { font-size: 1rem; }
  .related-grid { grid-template-columns: 1fr; gap: 16px; }
  .related-section { padding: 40px 0; }
  .related-section .section-title h2 { font-size: 1.4rem; }
  .cta-section { padding: 40px 0; }
  .cta-section h2 { font-size: 1.4rem; }
  .cta-section .btn-group { flex-direction: column; align-items: center; }
  .footer-inner { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .article-info { flex-direction: column; align-items: flex-start; gap: 12px; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .article-hero h1 { font-size: 1.3rem; }
  .article-hero .cat-tag { font-size: 0.7rem; padding: 4px 12px; }
  .article-body .content { font-size: 0.95rem; }
  .related-card .card-img { height: 140px; }
  .error-state { padding: 60px 16px; }
  .error-state h2 { font-size: 1.3rem; }
}

/* roulang page: category2 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0f6c5e;
            --primary-light: #1a9a87;
            --primary-dark: #0a4d42;
            --secondary: #f5b042;
            --secondary-light: #ffd175;
            --accent: #e85d3a;
            --bg-body: #f7f9fb;
            --bg-card: #ffffff;
            --bg-dark: #1a2e2a;
            --bg-dark-light: #24403a;
            --text-primary: #1a2a2a;
            --text-secondary: #4a5a5a;
            --text-light: #7a8a8a;
            --text-white: #f0f5f3;
            --border: #e0e8e6;
            --radius: 14px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(15, 108, 94, 0.06);
            --shadow-md: 0 8px 28px rgba(15, 108, 94, 0.10);
            --shadow-lg: 0 16px 48px rgba(15, 108, 94, 0.14);
            --transition: 0.25s cubic-bezier(0.2, 0, 0, 1);
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --container-w: 1200px;
            --header-h: 72px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--primary-light);
        }
        a:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 2px;
            border-radius: 4px;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }
        button {
            cursor: pointer;
            border: none;
            background: none;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 600;
            color: var(--text-primary);
        }

        /* ===== 容器 ===== */
        .container {
            max-width: var(--container-w);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== Header & 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: var(--header-h);
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
            z-index: 1000;
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled {
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
        }
        .header-inner {
            max-width: var(--container-w);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .logo {
            font-size: 22px;
            font-weight: 700;
            color: var(--primary-dark);
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: -0.3px;
        }
        .logo i {
            color: var(--secondary);
            font-size: 20px;
        }
        .logo:hover {
            color: var(--primary);
        }
        .nav-main {
            display: flex;
            align-items: center;
            gap: 32px;
        }
        .nav-main a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 6px 0;
            position: relative;
            transition: color var(--transition);
        }
        .nav-main a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2.5px;
            background: var(--primary);
            border-radius: 2px;
            transition: width var(--transition);
        }
        .nav-main a:hover {
            color: var(--primary);
        }
        .nav-main a:hover::after {
            width: 100%;
        }
        .nav-main a.active {
            color: var(--primary-dark);
            font-weight: 600;
        }
        .nav-main a.active::after {
            width: 100%;
            background: var(--primary);
        }
        .nav-toggle {
            display: none;
            font-size: 24px;
            color: var(--text-primary);
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(15, 108, 94, 0.08);
        }
        @media (max-width: 768px) {
            .nav-main {
                position: fixed;
                top: var(--header-h);
                left: 0;
                width: 100%;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(14px);
                flex-direction: column;
                gap: 0;
                padding: 12px 24px 24px;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-md);
                transform: translateY(-110%);
                opacity: 0;
                pointer-events: none;
                transition: transform 0.35s ease, opacity 0.3s ease;
            }
            .nav-main.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .nav-main a {
                width: 100%;
                padding: 14px 0;
                border-bottom: 1px solid var(--border);
                font-size: 16px;
            }
            .nav-main a:last-child {
                border-bottom: none;
            }
            .nav-main a::after {
                display: none;
            }
            .nav-main a.active {
                color: var(--primary);
                font-weight: 700;
            }
            .nav-toggle {
                display: block;
            }
        }

        /* ===== 内页横幅 ===== */
        .page-banner {
            margin-top: var(--header-h);
            padding: 100px 0 80px;
            background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-dark-light) 100%);
            position: relative;
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.20;
            mix-blend-mode: overlay;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(26, 46, 42, 0.70) 0%, rgba(26, 46, 42, 0.30) 100%);
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .page-banner h1 {
            font-size: 42px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .page-banner h1 i {
            color: var(--secondary);
            margin-right: 12px;
        }
        .page-banner p {
            font-size: 18px;
            color: rgba(240, 245, 243, 0.80);
            max-width: 680px;
            margin: 0 auto;
            line-height: 1.7;
        }
        .page-banner .banner-tags {
            display: flex;
            justify-content: center;
            gap: 12px;
            margin-top: 24px;
            flex-wrap: wrap;
        }
        .page-banner .banner-tags span {
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(4px);
            padding: 6px 18px;
            border-radius: 30px;
            font-size: 14px;
            color: var(--text-white);
            border: 1px solid rgba(255, 255, 255, 0.10);
        }
        @media (max-width: 768px) {
            .page-banner {
                padding: 80px 0 60px;
                min-height: 240px;
            }
            .page-banner h1 {
                font-size: 28px;
            }
            .page-banner p {
                font-size: 15px;
            }
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 70px 0;
        }
        .section-alt {
            background: var(--bg-card);
        }
        .section-title {
            font-size: 30px;
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
            color: var(--text-primary);
        }
        .section-sub {
            font-size: 16px;
            color: var(--text-light);
            max-width: 600px;
            margin-bottom: 40px;
            line-height: 1.6;
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header .section-sub {
            margin-left: auto;
            margin-right: auto;
        }
        .section-divider {
            width: 48px;
            height: 4px;
            background: var(--secondary);
            border-radius: 4px;
            margin: 16px auto 24px;
        }
        @media (max-width: 768px) {
            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 24px;
            }
            .section-sub {
                font-size: 15px;
            }
        }

        /* ===== 卡片 ===== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .card-img {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
            display: block;
        }
        .card-body {
            padding: 22px 24px 26px;
        }
        .card-body h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .card-body h3 a {
            color: var(--text-primary);
        }
        .card-body h3 a:hover {
            color: var(--primary);
        }
        .card-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 12px;
        }
        .card-meta {
            font-size: 13px;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .card-meta i {
            margin-right: 4px;
        }
        .card-tag {
            display: inline-block;
            padding: 2px 12px;
            border-radius: 30px;
            font-size: 12px;
            font-weight: 500;
            background: rgba(15, 108, 94, 0.08);
            color: var(--primary);
            margin-bottom: 10px;
        }

        /* ===== 网格 ===== */
        .grid-2 {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        @media (max-width: 1024px) {
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .grid-2,
            .grid-3,
            .grid-4 {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 30px;
            border-radius: 40px;
            font-weight: 600;
            font-size: 15px;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            border: none;
            cursor: pointer;
        }
        .btn:focus-visible {
            outline: 2px solid var(--primary-light);
            outline-offset: 3px;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
        }
        .btn-primary:hover {
            background: var(--primary-light);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(15, 108, 94, 0.25);
        }
        .btn-secondary {
            background: var(--secondary);
            color: #1a2a2a;
        }
        .btn-secondary:hover {
            background: var(--secondary-light);
            color: #1a2a2a;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(245, 176, 66, 0.30);
        }
        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 8px 20px;
            font-size: 13px;
        }

        /* ===== 特色列表 ===== */
        .feature-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px 32px;
        }
        .feature-item {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 18px 20px;
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            transition: box-shadow var(--transition), transform var(--transition);
        }
        .feature-item:hover {
            box-shadow: var(--shadow-sm);
            transform: translateY(-2px);
        }
        .feature-item .icon {
            flex-shrink: 0;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(15, 108, 94, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 20px;
        }
        .feature-item h4 {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 4px;
        }
        .feature-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.5;
        }
        @media (max-width: 768px) {
            .feature-list {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 统计数字 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-card {
            text-align: center;
            padding: 32px 16px;
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .stat-card .num {
            font-size: 40px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-card .num .suffix {
            font-size: 20px;
            font-weight: 600;
        }
        .stat-card .label {
            font-size: 15px;
            color: var(--text-secondary);
            margin-top: 8px;
        }
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stat-card .num {
                font-size: 30px;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: box-shadow var(--transition);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            background: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            transition: background var(--transition);
        }
        .faq-question:hover {
            background: rgba(15, 108, 94, 0.04);
        }
        .faq-question i {
            transition: transform 0.3s ease;
            color: var(--text-light);
            font-size: 14px;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 24px 18px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-answer {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-dark-light) 100%);
            padding: 70px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.10;
            mix-blend-mode: overlay;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 17px;
            color: rgba(240, 245, 243, 0.80);
            max-width: 560px;
            margin: 0 auto 32px;
        }
        .cta-section .btn {
            font-size: 16px;
            padding: 14px 40px;
        }
        @media (max-width: 768px) {
            .cta-section h2 {
                font-size: 24px;
            }
            .cta-section p {
                font-size: 15px;
            }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(240, 245, 243, 0.75);
            padding: 56px 0 0;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand .logo {
            color: var(--text-white);
            font-size: 22px;
            margin-bottom: 12px;
        }
        .footer-brand .logo i {
            color: var(--secondary);
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(240, 245, 243, 0.65);
            max-width: 300px;
        }
        .footer-col h5 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 18px;
            letter-spacing: 0.3px;
        }
        .footer-col a {
            display: block;
            font-size: 14px;
            color: rgba(240, 245, 243, 0.65);
            padding: 4px 0;
            transition: color var(--transition);
        }
        .footer-col a:hover {
            color: var(--secondary-light);
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0 24px;
            font-size: 13px;
            color: rgba(240, 245, 243, 0.50);
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom a {
            color: rgba(240, 245, 243, 0.60);
        }
        .footer-bottom a:hover {
            color: var(--secondary-light);
        }
        @media (max-width: 1024px) {
            .footer-inner {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 768px) {
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ===== 步骤流程 ===== */
        .steps {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            counter-reset: step;
        }
        .step-card {
            text-align: center;
            padding: 36px 24px 32px;
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border);
            position: relative;
            transition: transform var(--transition), box-shadow var(--transition);
        }
        .step-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .step-card::before {
            counter-increment: step;
            content: "0" counter(step);
            position: absolute;
            top: 16px;
            right: 20px;
            font-size: 48px;
            font-weight: 800;
            color: rgba(15, 108, 94, 0.06);
            line-height: 1;
            letter-spacing: -2px;
        }
        .step-card .icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: rgba(15, 108, 94, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            font-size: 28px;
            color: var(--primary);
        }
        .step-card h4 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .step-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        @media (max-width: 768px) {
            .steps {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        /* ===== 图文区块 ===== */
        .featured-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .featured-block.reverse {
            direction: rtl;
        }
        .featured-block.reverse>* {
            direction: ltr;
        }
        .featured-block .image-wrap {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        .featured-block .image-wrap img {
            width: 100%;
            aspect-ratio: 4 / 3;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .featured-block .image-wrap:hover img {
            transform: scale(1.03);
        }
        .featured-block .content h3 {
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .featured-block .content p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .featured-block .content .tags {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            margin-top: 12px;
        }
        .featured-block .content .tags span {
            background: rgba(15, 108, 94, 0.06);
            padding: 4px 14px;
            border-radius: 30px;
            font-size: 13px;
            color: var(--primary);
        }
        @media (max-width: 768px) {
            .featured-block {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .featured-block.reverse {
                direction: ltr;
            }
            .featured-block .content h3 {
                font-size: 20px;
            }
        }

        /* ===== 辅助 ===== */
        .text-center {
            text-align: center;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .mb-16 {
            margin-bottom: 16px;
        }
        .mb-24 {
            margin-bottom: 24px;
        }
        .gap-8 {
            gap: 8px;
        }
        .flex-center {
            display: flex;
            justify-content: center;
            align-items: center;
        }

        /* ===== 移动端微调 ===== */
        @media (max-width: 520px) {
            .page-banner h1 {
                font-size: 22px;
            }
            .page-banner p {
                font-size: 14px;
            }
            .section-title {
                font-size: 20px;
            }
            .card-body {
                padding: 16px 18px 20px;
            }
            .stat-card {
                padding: 20px 12px;
            }
            .stat-card .num {
                font-size: 26px;
            }
            .btn {
                padding: 10px 22px;
                font-size: 14px;
            }
        }

        /* 面包屑 */
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--text-light);
            margin-bottom: 32px;
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--text-light);
        }
        .breadcrumb a:hover {
            color: var(--primary);
        }
        .breadcrumb .sep {
            color: var(--text-light);
            font-size: 12px;
        }
        .breadcrumb .current {
            color: var(--text-primary);
            font-weight: 500;
        }

/* roulang page: category3 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0a2a5e;
            --primary-light: #1a4a8a;
            --primary-dark: #061b3e;
            --accent: #00bcd4;
            --accent-light: #4dd0e1;
            --accent-dark: #0097a7;
            --bg: #f5f7fc;
            --bg-card: #ffffff;
            --bg-dark: #0a1a2f;
            --text: #1a2332;
            --text-light: #5a6a7e;
            --text-white: #f0f4ff;
            --border: #e2e8f0;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 4px 20px rgba(10, 42, 94, 0.08);
            --shadow-hover: 0 12px 40px rgba(10, 42, 94, 0.15);
            --shadow-dark: 0 8px 30px rgba(0, 0, 0, 0.3);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --max-width: 1200px;
            --header-h: 72px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }
        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            min-height: 100vh;
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
        }
        button {
            cursor: pointer;
            background: none;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--primary);
        }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header / 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            height: var(--header-h);
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled {
            box-shadow: 0 2px 20px rgba(10, 42, 94, 0.1);
        }
        .header-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .logo {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            display: flex;
            align-items: center;
            gap: 8px;
            letter-spacing: -0.5px;
        }
        .logo i {
            color: var(--accent);
            font-size: 1.4rem;
        }
        .logo:hover {
            color: var(--primary);
        }
        .nav-main {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-main a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-light);
            transition: all var(--transition);
            position: relative;
            letter-spacing: 0.3px;
        }
        .nav-main a:hover {
            color: var(--primary);
            background: rgba(10, 42, 94, 0.05);
        }
        .nav-main a.active {
            color: var(--primary);
            background: rgba(10, 42, 94, 0.08);
            font-weight: 600;
        }
        .nav-main a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--accent);
            border-radius: 4px;
        }
        .nav-toggle {
            display: none;
            font-size: 1.4rem;
            color: var(--primary);
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(10, 42, 94, 0.06);
        }

        /* ===== 移动端导航 ===== */
        @media (max-width: 768px) {
            .nav-main {
                position: fixed;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                flex-direction: column;
                padding: 16px 24px 24px;
                gap: 4px;
                border-bottom: 1px solid var(--border);
                transform: translateY(-120%);
                opacity: 0;
                transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
                pointer-events: none;
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
                border-radius: 0 0 var(--radius-lg) var(--radius-lg);
            }
            .nav-main.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: all;
            }
            .nav-main a {
                padding: 12px 16px;
                font-size: 1.05rem;
                width: 100%;
                text-align: center;
                border-radius: var(--radius-sm);
            }
            .nav-main a.active::after {
                bottom: 4px;
                width: 30px;
                height: 3px;
            }
            .nav-toggle {
                display: block;
            }
            .header-inner {
                padding: 0 16px;
            }
            .container {
                padding: 0 16px;
            }
        }
        @media (max-width: 520px) {
            .logo {
                font-size: 1.25rem;
            }
            .logo i {
                font-size: 1.1rem;
            }
            .nav-main a {
                font-size: 0.95rem;
                padding: 10px 14px;
            }
        }

        /* ===== Hero Banner ===== */
        .category-hero {
            margin-top: var(--header-h);
            min-height: 320px;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            padding: 60px 24px;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center/cover no-repeat;
            opacity: 0.15;
            mix-blend-mode: overlay;
        }
        .category-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 40%, rgba(0, 188, 212, 0.15) 0%, transparent 70%);
        }
        .category-hero .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 780px;
        }
        .category-hero .hero-content h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 12px;
            letter-spacing: -0.5px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
        }
        .category-hero .hero-content h1 i {
            color: var(--accent-light);
            margin-right: 10px;
        }
        .category-hero .hero-content p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 600px;
            margin: 0 auto 20px;
            line-height: 1.7;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(4px);
            padding: 6px 18px;
            border-radius: 40px;
            font-size: 0.85rem;
            color: var(--text-white);
            border: 1px solid rgba(255, 255, 255, 0.15);
            margin-bottom: 16px;
        }
        .hero-badge i {
            color: var(--accent-light);
        }
        @media (max-width: 768px) {
            .category-hero {
                min-height: 240px;
                padding: 40px 16px;
            }
            .category-hero .hero-content h1 {
                font-size: 2rem;
            }
            .category-hero .hero-content p {
                font-size: 1rem;
            }
        }
        @media (max-width: 520px) {
            .category-hero .hero-content h1 {
                font-size: 1.6rem;
            }
            .category-hero .hero-content p {
                font-size: 0.9rem;
            }
            .hero-badge {
                font-size: 0.75rem;
                padding: 4px 14px;
            }
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-card);
        }
        .section-dark {
            background: var(--bg-dark);
            color: var(--text-white);
        }
        .section-dark h2,
        .section-dark h3,
        .section-dark .section-sub {
            color: var(--text-white);
        }
        .section-dark .section-sub {
            color: rgba(255, 255, 255, 0.7);
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-header h2 i {
            color: var(--accent);
            margin-right: 8px;
        }
        .section-sub {
            font-size: 1.05rem;
            color: var(--text-light);
            max-width: 640px;
            margin: 0 auto;
            line-height: 1.7;
        }
        .section-header .section-sub {
            margin-top: 8px;
        }
        @media (max-width: 768px) {
            .section {
                padding: 56px 0;
            }
            .section-header h2 {
                font-size: 1.7rem;
            }
            .section-sub {
                font-size: 0.95rem;
            }
            .section-header {
                margin-bottom: 32px;
            }
        }
        @media (max-width: 520px) {
            .section {
                padding: 40px 0;
            }
            .section-header h2 {
                font-size: 1.4rem;
            }
        }

        /* ===== 卡片网格 ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 28px;
        }
        .card-grid.cols-2 {
            grid-template-columns: repeat(2, 1fr);
        }
        .card-grid.cols-4 {
            grid-template-columns: repeat(4, 1fr);
        }
        @media (max-width: 1024px) {
            .card-grid.cols-4 {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .card-grid {
                grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
                gap: 20px;
            }
            .card-grid.cols-2 {
                grid-template-columns: 1fr;
            }
            .card-grid.cols-4 {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 520px) {
            .card-grid {
                grid-template-columns: 1fr;
            }
            .card-grid.cols-4 {
                grid-template-columns: 1fr;
            }
        }

        /* ===== 资讯卡片 ===== */
        .news-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            border: 1px solid var(--border);
        }
        .news-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: transparent;
        }
        .news-card .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: 0;
            transition: transform 0.5s ease;
        }
        .news-card:hover .card-img {
            transform: scale(1.03);
        }
        .news-card .card-body {
            padding: 22px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-card .card-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(0, 188, 212, 0.1);
            color: var(--accent-dark);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: 30px;
            margin-bottom: 10px;
            width: fit-content;
            letter-spacing: 0.3px;
            text-transform: uppercase;
        }
        .news-card .card-tag i {
            font-size: 0.65rem;
        }
        .news-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--primary);
            line-height: 1.4;
        }
        .news-card h3 a {
            color: inherit;
        }
        .news-card h3 a:hover {
            color: var(--accent-dark);
        }
        .news-card .card-excerpt {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 14px;
        }
        .news-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.8rem;
            color: var(--text-light);
            border-top: 1px solid var(--border);
            padding-top: 14px;
            margin-top: auto;
        }
        .news-card .card-meta span i {
            margin-right: 4px;
            color: var(--accent);
        }
        .news-card .card-meta .read-more {
            font-weight: 600;
            color: var(--primary-light);
            font-size: 0.85rem;
            transition: all var(--transition);
        }
        .news-card .card-meta .read-more:hover {
            color: var(--accent-dark);
            gap: 6px;
        }
        .news-card .card-meta .read-more i {
            margin-left: 4px;
            transition: transform var(--transition);
        }
        .news-card .card-meta .read-more:hover i {
            transform: translateX(4px);
        }
        @media (max-width: 520px) {
            .news-card .card-body {
                padding: 16px 18px 18px;
            }
            .news-card .card-img {
                height: 170px;
            }
            .news-card h3 {
                font-size: 1.05rem;
            }
        }

        /* ===== 特色卡片（带图标） ===== */
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 32px 28px;
            box-shadow: var(--shadow);
            transition: all var(--transition);
            border: 1px solid var(--border);
            text-align: center;
        }
        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(0, 188, 212, 0.2);
        }
        .feature-card .feat-icon {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: rgba(0, 188, 212, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.6rem;
            color: var(--accent);
            transition: all var(--transition);
        }
        .feature-card:hover .feat-icon {
            background: var(--accent);
            color: #fff;
            transform: scale(1.05);
        }
        .feature-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .feature-card p {
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.6;
        }
        @media (max-width: 520px) {
            .feature-card {
                padding: 24px 18px;
            }
            .feature-card .feat-icon {
                width: 48px;
                height: 48px;
                font-size: 1.3rem;
            }
        }

        /* ===== 赛程列表 ===== */
        .schedule-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .schedule-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            padding: 18px 24px;
            display: flex;
            align-items: center;
            gap: 20px;
            border: 1px solid var(--border);
            transition: all var(--transition);
            box-shadow: var(--shadow);
        }
        .schedule-item:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-hover);
            transform: translateX(4px);
        }
        .schedule-item .s-date {
            min-width: 60px;
            text-align: center;
            font-weight: 700;
            color: var(--primary);
            font-size: 0.9rem;
        }
        .schedule-item .s-date .day {
            font-size: 1.5rem;
            display: block;
            line-height: 1.2;
        }
        .schedule-item .s-date .month {
            font-size: 0.75rem;
            color: var(--text-light);
            font-weight: 500;
        }
        .schedule-item .s-info {
            flex: 1;
        }
        .schedule-item .s-info .s-league {
            font-size: 0.8rem;
            color: var(--accent-dark);
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .schedule-item .s-info .s-match {
            font-size: 1rem;
            font-weight: 700;
            color: var(--primary);
            margin-top: 2px;
        }
        .schedule-item .s-status {
            padding: 4px 16px;
            border-radius: 30px;
            font-size: 0.75rem;
            font-weight: 600;
            background: rgba(0, 188, 212, 0.08);
            color: var(--accent-dark);
            white-space: nowrap;
        }
        .schedule-item .s-status.upcoming {
            background: rgba(255, 152, 0, 0.1);
            color: #e67e00;
        }
        .schedule-item .s-status.live {
            background: rgba(233, 30, 99, 0.08);
            color: #c2185b;
        }
        .schedule-item .s-status.finished {
            background: rgba(76, 175, 80, 0.08);
            color: #2e7d32;
        }
        @media (max-width: 640px) {
            .schedule-item {
                flex-wrap: wrap;
                padding: 14px 16px;
                gap: 10px;
            }
            .schedule-item .s-date {
                min-width: 44px;
            }
            .schedule-item .s-date .day {
                font-size: 1.2rem;
            }
            .schedule-item .s-info .s-match {
                font-size: 0.9rem;
            }
            .schedule-item .s-status {
                font-size: 0.7rem;
                padding: 3px 12px;
            }
        }

        /* ===== 数据分析块 ===== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-item {
            background: rgba(255, 255, 255, 0.06);
            backdrop-filter: blur(4px);
            border-radius: var(--radius);
            padding: 28px 20px;
            text-align: center;
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: all var(--transition);
        }
        .stat-item:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-4px);
            border-color: var(--accent);
        }
        .stat-item .stat-num {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--accent-light);
            line-height: 1.2;
            letter-spacing: -1px;
        }
        .stat-item .stat-label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 6px;
            font-weight: 500;
        }
        @media (max-width: 768px) {
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-item .stat-num {
                font-size: 2.2rem;
            }
        }
        @media (max-width: 520px) {
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-item {
                padding: 18px 12px;
            }
            .stat-item .stat-num {
                font-size: 1.8rem;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow);
        }
        .faq-item:hover {
            border-color: rgba(0, 188, 212, 0.2);
        }
        .faq-item .faq-q {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 1rem;
            color: var(--primary);
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            transition: background var(--transition);
        }
        .faq-item .faq-q:hover {
            background: rgba(10, 42, 94, 0.02);
        }
        .faq-item .faq-q i {
            color: var(--accent);
            transition: transform var(--transition);
            font-size: 0.9rem;
        }
        .faq-item.open .faq-q i {
            transform: rotate(180deg);
        }
        .faq-item .faq-a {
            padding: 0 24px 18px;
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.7;
            display: none;
        }
        .faq-item.open .faq-a {
            display: block;
        }
        .faq-item .faq-a a {
            color: var(--accent-dark);
            font-weight: 500;
        }
        @media (max-width: 520px) {
            .faq-item .faq-q {
                padding: 14px 16px;
                font-size: 0.9rem;
            }
            .faq-item .faq-a {
                padding: 0 16px 14px;
                font-size: 0.85rem;
            }
        }

        /* ===== CTA ===== */
        .cta-box {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            text-align: center;
            color: var(--text-white);
            position: relative;
            overflow: hidden;
        }
        .cta-box::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center/cover no-repeat;
            opacity: 0.06;
            mix-blend-mode: overlay;
        }
        .cta-box * {
            position: relative;
            z-index: 2;
        }
        .cta-box h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 12px;
        }
        .cta-box p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            margin: 0 auto 28px;
        }
        .cta-box .btn-group {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all var(--transition);
            border: 2px solid transparent;
        }
        .btn-primary {
            background: var(--accent);
            color: var(--primary-dark);
            border-color: var(--accent);
        }
        .btn-primary:hover {
            background: var(--accent-light);
            border-color: var(--accent-light);
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(0, 188, 212, 0.3);
        }
        .btn-outline {
            background: transparent;
            color: var(--text-white);
            border-color: rgba(255, 255, 255, 0.4);
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: var(--text-white);
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 10px 22px;
            font-size: 0.85rem;
        }
        @media (max-width: 768px) {
            .cta-box {
                padding: 40px 24px;
            }
            .cta-box h2 {
                font-size: 1.6rem;
            }
            .cta-box p {
                font-size: 0.95rem;
            }
            .btn {
                padding: 12px 24px;
                font-size: 0.9rem;
            }
        }
        @media (max-width: 520px) {
            .cta-box {
                padding: 32px 16px;
                border-radius: var(--radius);
            }
            .cta-box h2 {
                font-size: 1.3rem;
            }
            .btn {
                padding: 10px 20px;
                font-size: 0.85rem;
                width: 100%;
                justify-content: center;
            }
            .cta-box .btn-group {
                flex-direction: column;
                gap: 12px;
            }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 60px 0 0;
        }
        .site-footer .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand .logo {
            color: var(--text-white);
            font-size: 1.4rem;
            margin-bottom: 12px;
        }
        .footer-brand .logo i {
            color: var(--accent);
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            max-width: 320px;
            line-height: 1.7;
        }
        .footer-col h5 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .footer-col a {
            display: block;
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.6);
            padding: 4px 0;
            transition: all var(--transition);
        }
        .footer-col a:hover {
            color: var(--accent-light);
            padding-left: 4px;
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.4);
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
            transition: color var(--transition);
        }
        .footer-bottom a:hover {
            color: var(--accent-light);
        }
        @media (max-width: 1024px) {
            .footer-inner {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 640px) {
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .site-footer {
                padding: 40px 0 0;
            }
            .footer-brand p {
                max-width: 100%;
            }
        }

        /* ===== 移动端微调 ===== */
        @media (max-width: 480px) {
            .container {
                padding: 0 12px;
            }
            .header-inner {
                padding: 0 12px;
            }
        }

        /* ===== focus 辅助 ===== */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }

        /* ===== 动画 ===== */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .animate-in {
            animation: fadeInUp 0.6s ease forwards;
        }
        .animate-in-delay-1 {
            animation-delay: 0.1s;
        }
        .animate-in-delay-2 {
            animation-delay: 0.2s;
        }
        .animate-in-delay-3 {
            animation-delay: 0.3s;
        }