/* roulang page: index */
:root {
  --primary: #1F3D2B;
  --primary-dark: #14281E;
  --accent: #C96F3C;
  --bg: #F7F4EE;
  --white: #FFFFFF;
  --text: #2E352F;
  --text-light: #6B7368;
  --border: #E3DED3;
  --success: #3D7B52;
  --warning: #C96F3C;
  --error: #B1453A;
  --info: #5B7D9D;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --shadow-sm: 0 4px 12px rgba(20,40,30,0.06);
  --shadow-lg: 0 12px 32px rgba(20,40,30,0.12);
  --font-serif: "Noto Serif SC", "Source Han Serif SC", Georgia, "Songti SC", "SimSun", serif;
  --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --container: 1200px;
  --spacing-section: 96px;
  --spacing-section-mobile: 64px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.8;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color 0.25s ease; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, select, textarea { font-family: inherit; font-size: 15px; }
ul, ol { list-style: none; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.section { padding: var(--spacing-section) 0; }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section-eyebrow { display: inline-block; font-size: 13px; letter-spacing: 4px; color: var(--accent); text-transform: uppercase; margin-bottom: 12px; font-weight: 600; }
.section-head h2 { font-family: var(--font-serif); font-size: 36px; line-height: 1.3; color: var(--primary-dark); font-weight: 700; margin-bottom: 14px; }
.section-head h2::after { content: ''; display: block; width: 48px; height: 3px; background: var(--accent); margin: 18px auto 0; border-radius: 2px; }
.section-head p { color: var(--text-light); font-size: 16px; margin-top: 16px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 16px; font-weight: 500; line-height: 1;
  padding: 14px 32px; border-radius: 6px; border: 1px solid transparent;
  transition: all 0.25s ease; cursor: pointer; text-align: center;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #b55c30; transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.btn-outline { background: transparent; color: #fff; border-color: rgba(255,255,255,0.7); }
.btn-outline:hover { background: rgba(255,255,255,0.1); border-color: #fff; }
.btn-outline-dark { background: transparent; color: var(--primary-dark); border-color: var(--primary); }
.btn-outline-dark:hover { background: var(--primary); color: #fff; transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.btn-block { width: 100%; }
.tag { display: inline-block; font-size: 13px; padding: 4px 12px; background: var(--primary); color: #fff; border-radius: 4px; letter-spacing: 0.5px; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
input:focus, select:focus, textarea:focus { border-color: var(--accent) !important; outline: 2px solid rgba(201,111,60,0.25); outline-offset: 0; }

/* ===== Header / Nav ===== */
.site-header {
  position: sticky; top: 0; z-index: 100;
  height: 80px; background: var(--bg);
  border-bottom: 1px solid var(--border);
}
.nav-wrap { height: 80px; display: flex; align-items: center; justify-content: space-between; }
.brand { font-family: var(--font-serif); font-size: 21px; font-weight: 700; color: var(--primary-dark); letter-spacing: 1px; white-space: nowrap; }
.brand:hover { color: var(--primary); }
.main-nav { display: flex; align-items: center; gap: 32px; }
.main-nav .nav-link { font-size: 15px; color: var(--text-light); position: relative; padding: 24px 0; line-height: 1; transition: color 0.25s; }
.main-nav .nav-link:hover { color: var(--primary); }
.main-nav .nav-link.active { color: var(--primary); }
.main-nav .nav-link.active::after { content: ''; position: absolute; left: 0; right: 0; bottom: 0; height: 2px; background: var(--primary); }
.nav-toggle { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.nav-toggle .bar { width: 26px; height: 2px; background: var(--primary-dark); border-radius: 2px; transition: all 0.3s ease; }
.nav-toggle.active .bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active .bar:nth-child(2) { opacity: 0; }
.nav-toggle.active .bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== Hero ===== */
.hero {
  min-height: 85vh;
  display: flex; align-items: center;
  background: linear-gradient(135deg, rgba(20,40,30,0.88) 0%, rgba(31,61,43,0.72) 60%, rgba(20,40,30,0.6) 100%),
              url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
  color: #fff; position: relative;
}
.hero-content { padding: 80px 0; max-width: 780px; }
.hero-tag {
  display: inline-block; font-size: 14px; letter-spacing: 3px;
  border: 1px solid rgba(255,255,255,0.4); border-radius: 40px;
  padding: 8px 20px; margin-bottom: 28px; color: #f5f0e6;
}
.hero h1 {
  font-family: var(--font-serif); font-size: 48px; line-height: 1.25;
  font-weight: 700; color: #fff; margin-bottom: 24px;
}
.hero-sub { font-size: 17px; line-height: 1.8; color: rgba(247,244,238,0.85); max-width: 640px; margin-bottom: 36px; }
.hero-actions { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; margin-bottom: 48px; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 28px; padding-top: 24px; border-top: 1px solid rgba(255,255,255,0.2); }
.meta-item { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; color: rgba(247,244,238,0.8); }
.meta-item svg { width: 16px; height: 16px; color: var(--accent); flex-shrink: 0; }

/* ===== Timeline ===== */
.timeline { position: relative; max-width: 960px; margin: 0 auto; padding: 20px 0 0; }
.timeline::before { content: ''; position: absolute; left: 50%; top: 0; bottom: 0; width: 2px; background: var(--primary); opacity: 0.18; transform: translateX(-50%); }
.timeline-item { position: relative; width: 50%; padding: 0 48px 56px; }
.timeline-item.left { left: 0; text-align: right; }
.timeline-item.right { left: 50%; text-align: left; }
.timeline-dot { position: absolute; top: 12px; width: 14px; height: 14px; background: var(--primary); border-radius: 50%; border: 3px solid var(--bg); box-shadow: 0 0 0 2px var(--primary); }
.timeline-item.left .timeline-dot { right: -7px; }
.timeline-item.right .timeline-dot { left: -7px; }
.timeline-card { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 28px; box-shadow: var(--shadow-sm); transition: box-shadow 0.3s ease, transform 0.3s ease; }
.timeline-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }
.timeline-card .time { display: inline-block; font-size: 14px; font-weight: 700; color: var(--primary); letter-spacing: 1px; margin-bottom: 10px; font-family: var(--font-serif); }
.timeline-card h3 { font-family: var(--font-serif); font-size: 20px; color: var(--primary-dark); margin-bottom: 10px; font-weight: 600; }
.timeline-card p { font-size: 15px; color: var(--text-light); line-height: 1.7; margin-bottom: 14px; }
.timeline-card .tag { margin-right: 6px; }

/* ===== Highlights ===== */
.hl-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; margin-bottom: 64px; }
.hl-media img { width: 100%; border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); object-fit: cover; aspect-ratio: 4/3; }
.hl-list { display: flex; flex-direction: column; gap: 32px; }
.hl-item { position: relative; padding-left: 28px; border-left: 3px solid var(--primary); }
.hl-item h3 { font-family: var(--font-serif); font-size: 20px; color: var(--primary-dark); margin-bottom: 8px; font-weight: 600; }
.hl-item p { font-size: 15px; color: var(--text-light); line-height: 1.7; }
.hl-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.mini-card { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 24px; box-shadow: var(--shadow-sm); transition: box-shadow 0.3s ease, transform 0.3s ease; }
.mini-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); }
.mini-cover { border-radius: var(--radius-sm); overflow: hidden; margin-bottom: 16px; }
.mini-cover img { width: 100%; height: 110px; object-fit: cover; }
.mini-card h4 { font-family: var(--font-serif); font-size: 17px; color: var(--primary-dark); margin-bottom: 6px; font-weight: 600; }
.mini-card p { font-size: 14px; color: var(--text-light); line-height: 1.6; }

/* ===== Pricing ===== */
.pricing { background: #f0ebe1; }
.ticket-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; align-items: stretch; max-width: 1020px; margin: 0 auto; }
.ticket-card { background: var(--white); border: 1px solid var(--border); padding: 40px 32px; display: flex; flex-direction: column; border-radius: 0; transition: transform 0.3s ease, box-shadow 0.3s ease; }
.ticket-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); z-index: 2; }
.ticket-card:first-child { border-radius: var(--radius-lg) 0 0 var(--radius-lg); }
.ticket-card:last-child { border-radius: 0 var(--radius-lg) var(--radius-lg) 0; }
.ticket-card.featured { background: var(--primary-dark); color: #fff; border-color: var(--primary-dark); position: relative; border-radius: var(--radius-lg); padding: 52px 32px; margin: -16px 0; box-shadow: var(--shadow-lg); z-index: 3; }
.ticket-card.featured .badge { position: absolute; top: 16px; right: 16px; background: var(--accent); color: #fff; font-size: 13px; padding: 4px 12px; border-radius: 20px; letter-spacing: 1px; }
.ticket-card h3 { font-family: var(--font-serif); font-size: 20px; color: var(--primary-dark); margin-bottom: 16px; font-weight: 600; }
.ticket-card.featured h3 { color: #fff; }
.ticket-card .price { font-family: var(--font-serif); font-size: 44px; font-weight: 700; color: var(--primary-dark); margin-bottom: 24px; line-height: 1; }
.ticket-card.featured .price { color: #fff; }
.ticket-card .price .currency { font-size: 22px; vertical-align: top; margin-right: 2px; }
.ticket-features { margin-bottom: 32px; flex: 1; }
.ticket-features li { padding: 12px 0; border-bottom: 1px solid var(--border); font-size: 15px; color: var(--text-light); display: flex; gap: 8px; }
.ticket-card.featured .ticket-features li { border-color: rgba(255,255,255,0.15); color: rgba(247,244,238,0.9); }
.ticket-features li::before { content: ''; width: 5px; height: 5px; border-radius: 50%; background: var(--accent); flex-shrink: 0; margin-top: 11px; }
.ticket-card.featured .ticket-features li::before { background: #fff; }

/* ===== FAQ ===== */
.faq-list { max-width: 760px; margin: 0 auto; display: flex; flex-direction: column; gap: 16px; }
.faq-item { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-md); box-shadow: var(--shadow-sm); overflow: hidden; }
.faq-question { width: 100%; display: flex; align-items: center; justify-content: space-between; text-align: left; padding: 22px 24px; font-size: 16px; font-weight: 500; color: var(--primary-dark); transition: background 0.25s; }
.faq-question:hover { background: #fbf8f2; }
.faq-icon { position: relative; width: 20px; height: 20px; flex-shrink: 0; }
.faq-icon::before, .faq-icon::after { content: ''; position: absolute; background: var(--accent); border-radius: 2px; transition: transform 0.3s ease; }
.faq-icon::before { width: 20px; height: 2px; top: 9px; left: 0; }
.faq-icon::after { width: 2px; height: 20px; top: 0; left: 9px; }
.faq-item.open .faq-icon::after { transform: rotate(90deg); opacity: 0; }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s ease; }
.faq-item.open .faq-answer { max-height: 500px; }
.faq-answer p { padding: 0 24px 24px; font-size: 15px; color: var(--text-light); line-height: 1.7; }

/* ===== Register ===== */
.register { background: var(--primary-dark); color: #fff; }
.register .section-head h2 { color: #fff; }
.register .section-head h2::after { background: var(--accent); }
.register .section-head p { color: rgba(247,244,238,0.7); }
.register-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 48px; max-width: 1020px; margin: 0 auto; }
.register-form { background: var(--bg); border-radius: var(--radius-lg); padding: 36px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 14px; font-weight: 500; color: var(--primary); margin-bottom: 6px; }
.form-group input, .form-group select, .form-group textarea { width: 100%; height: 48px; border: 1px solid var(--border); border-radius: 6px; padding: 0 14px; background: var(--white); transition: border-color 0.25s; }
.form-group textarea { height: 96px; padding: 12px 14px; resize: vertical; }
.register-info { background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.12); border-radius: var(--radius-lg); padding: 36px; align-self: start; }
.register-info h3 { font-family: var(--font-serif); font-size: 22px; color: #fff; margin-bottom: 24px; }
.register-info ul { display: flex; flex-direction: column; gap: 14px; }
.register-info li { display: flex; justify-content: space-between; font-size: 15px; padding-bottom: 12px; border-bottom: 1px solid rgba(255,255,255,0.1); }
.register-info li span { color: rgba(247,244,238,0.6); }
.register-info li:last-child { border-bottom: none; }
.register-form .btn { margin-top: 8px; }

/* ===== News ===== */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.news-card { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 28px; box-shadow: var(--shadow-sm); display: flex; flex-direction: column; transition: box-shadow 0.3s ease, transform 0.3s ease; }
.news-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); }
.news-tag { align-self: flex-start; margin-bottom: 14px; }
.news-card h3 { font-family: var(--font-serif); font-size: 18px; line-height: 1.5; color: var(--primary-dark); margin-bottom: 12px; font-weight: 600; }
.news-card h3 a:hover { color: var(--accent); }
.news-excerpt { font-size: 14px; color: var(--text-light); line-height: 1.7; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 20px; flex: 1; }
.news-footer { display: flex; align-items: center; justify-content: space-between; padding-top: 16px; border-top: 1px solid var(--border); }
.news-date { font-size: 13px; color: var(--text-light); }
.read-more { font-size: 14px; color: var(--primary); font-weight: 500; }
.read-more:hover { color: var(--accent); }
.news-empty { background: var(--white); border: 1px dashed var(--border); border-radius: var(--radius-lg); padding: 64px 24px; text-align: center; }
.news-empty svg { color: #c9c3b8; margin-bottom: 16px; }
.news-empty p { color: var(--text-light); margin-bottom: 20px; }

/* ===== Footer ===== */
.site-footer { background: var(--primary-dark); color: rgba(247,244,238,0.9); padding-top: 64px; border-top: 1px solid rgba(255,255,255,0.1); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 48px; padding-bottom: 48px; }
.footer-grid h4 { font-family: var(--font-serif); font-size: 18px; color: #fff; margin-bottom: 18px; font-weight: 600; }
.footer-about p { font-size: 15px; line-height: 1.8; color: rgba(247,244,238,0.7); }
.footer-contact p { font-size: 15px; line-height: 1.8; color: rgba(247,244,238,0.7); }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { font-size: 15px; color: rgba(247,244,238,0.7); }
.footer-links a:hover { color: var(--accent); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding: 20px 0; text-align: center; font-size: 13px; color: rgba(247,244,238,0.5); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .hl-grid { grid-template-columns: 1fr; gap: 32px; }
  .hl-cards { grid-template-columns: repeat(2, 1fr); }
  .ticket-grid { grid-template-columns: 1fr; max-width: 460px; gap: 24px; }
  .ticket-card:first-child, .ticket-card:last-child { border-radius: var(--radius-lg); }
  .ticket-card.featured { margin: 0; }
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  :root { --spacing-section: var(--spacing-section-mobile); }
  .container { padding: 0 16px; }
  .section-head { margin-bottom: 40px; }
  .section-head h2 { font-size: 28px; }
  .hero { min-height: 75vh; }
  .hero h1 { font-size: 32px; }
  .hero-sub { font-size: 16px; }
  .hero-actions { flex-direction: column; align-items: flex-start; width: 100%; }
  .hero-actions .btn { width: 100%; }
  .hero-meta { flex-direction: column; gap: 12px; }
  .nav-toggle { display: flex; }
  .main-nav { position: fixed; top: 80px; left: 0; right: 0; bottom: 0; background: var(--bg); flex-direction: column; align-items: flex-start; padding: 48px 24px; gap: 28px; transform: translateX(100%); transition: transform 0.35s ease; z-index: 99; overflow-y: auto; }
  .main-nav.open { transform: translateX(0); }
  .main-nav .nav-link { font-size: 20px; padding: 10px 0; }
  .main-nav .nav-link.active::after { bottom: -2px; }
  .timeline::before { left: 20px; }
  .timeline-item, .timeline-item.left, .timeline-item.right { width: 100%; margin-left: 0; padding-left: 56px; padding-right: 0; text-align: left; }
  .timeline-item.left .timeline-dot, .timeline-item.right .timeline-dot { left: 13px; right: auto; }
  .hl-cards { grid-template-columns: 1fr 1fr; gap: 16px; }
  .register-grid { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .mini-cover img { height: 90px; }
}
@media (max-width: 520px) {
  .hl-cards { grid-template-columns: 1fr; }
  .ticket-card { padding: 32px 24px; }
  .register-form { padding: 24px; }
  .brand { font-size: 18px; }
  .hero-meta { gap: 10px; }
}

/* roulang page: article */
:root{
  --primary:#1F3D2B;
  --primary-dark:#14281E;
  --accent:#C96F3C;
  --accent-dark:#A85A2F;
  --bg:#F7F4EE;
  --white:#FFFFFF;
  --text:#2E352F;
  --text-weak:#6B7368;
  --border:#E3DED3;
  --success:#3D7B52;
  --warning:#C96F3C;
  --error:#B1453A;
  --info:#5B7D9D;
  --radius-sm:4px;
  --radius-md:8px;
  --radius-lg:12px;
  --shadow-rest:0 4px 12px rgba(20,40,30,0.06);
  --shadow-hover:0 12px 32px rgba(20,40,30,0.12);
  --font-serif:'Noto Serif SC','Source Han Serif SC','Songti SC','SimSun',Georgia,serif;
  --font-sans:'Noto Sans SC','PingFang SC','Hiragino Sans GB','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;
  --container-w:1200px;
  --space-section:96px;
}
*,*::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:17px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--primary);text-decoration:none;transition:color 0.25s ease;}
a:hover{color:var(--accent);}
button{font-family:inherit;border:none;background:none;cursor:pointer;}
input,select,textarea{font-family:inherit;font-size:inherit;}

.container{max-width:var(--container-w);margin:0 auto;padding:0 24px;}
.article-container{max-width:760px;margin:0 auto;padding:0 24px;}

/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:100;
  background:var(--bg);
  border-bottom:1px solid var(--border);
}
.nav-wrap{
  display:flex;align-items:center;justify-content:space-between;
  height:80px;
}
.brand{
  font-family:var(--font-serif);
  font-size:22px;font-weight:700;
  color:var(--primary);
  letter-spacing:1px;
  white-space:nowrap;
}
.brand:hover{color:var(--primary);}
.main-nav{
  display:flex;align-items:center;gap:32px;
}
.main-nav .nav-link{
  font-size:15px;font-weight:500;
  color:var(--text);
  padding:10px 0;
  position:relative;
  line-height:1.4;
}
.main-nav .nav-link::after{
  content:'';position:absolute;left:0;bottom:0;
  width:0;height:2px;background:var(--primary);
  transition:width 0.3s ease;
}
.main-nav .nav-link:hover{color:var(--primary);}
.main-nav .nav-link:hover::after{width:100%;}
.main-nav .nav-link.active{color:var(--primary);}
.main-nav .nav-link.active::after{width:100%;}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;
  gap:5px;width:44px;height:44px;
  border-radius:var(--radius-sm);
  align-items:center;
}
.nav-toggle .bar{
  display:block;width:22px;height:2px;
  background:var(--primary);
  border-radius:2px;
  transition:transform 0.3s ease,opacity 0.3s ease;
}
.nav-toggle.open .bar:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.open .bar:nth-child(2){opacity:0;}
.nav-toggle.open .bar:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ===== Article Head ===== */
.article-main{min-height:60vh;}
.article-head{
  background:var(--white);
  border-bottom:1px solid var(--border);
  padding:64px 0 48px;
}
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:14px;color:var(--text-weak);
  margin-bottom:28px;
}
.breadcrumb a{color:var(--text-weak);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .bc-sep{color:var(--border);}
.breadcrumb .bc-current{
  color:var(--text);
  max-width:320px;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.article-title{
  font-family:var(--font-serif);
  font-size:42px;line-height:1.3;
  font-weight:700;color:var(--primary-dark);
  max-width:720px;
  margin-bottom:24px;
}
.article-meta{
  display:flex;align-items:center;flex-wrap:wrap;gap:24px;
  font-size:14px;color:var(--text-weak);
  border-top:1px solid var(--border);
  padding-top:20px;
  margin-top:8px;
}
.meta-item{
  display:inline-flex;align-items:center;gap:6px;
}
.meta-item svg{width:16px;height:16px;stroke:var(--text-weak);}
.meta-item .dot{
  width:3px;height:3px;border-radius:50%;
  background:var(--border);
  display:inline-block;
}

/* ===== Article Body ===== */
.article-content{
  padding:64px 0 32px;
}
.article-body{
  max-width:760px;margin:0 auto;
  background:var(--white);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:56px 64px;
  box-shadow:var(--shadow-rest);
}
.article-body h2{
  font-family:var(--font-serif);
  font-size:28px;line-height:1.4;
  color:var(--primary-dark);
  margin:48px 0 20px;
  padding-left:16px;
  border-left:4px solid var(--primary);
}
.article-body h2:first-child{margin-top:0;}
.article-body h3{
  font-family:var(--font-serif);
  font-size:22px;line-height:1.4;
  color:var(--primary);
  margin:36px 0 16px;
}
.article-body p{
  font-size:17px;line-height:1.9;
  color:var(--text);
  margin-bottom:24px;
}
.article-body ul,.article-body ol{
  margin:0 0 24px 24px;
  padding:0;
}
.article-body li{
  font-size:16px;line-height:1.8;
  color:var(--text);
  margin-bottom:8px;
}
.article-body li::marker{color:var(--primary);}
.article-body blockquote{
  margin:32px 0;
  padding:20px 28px;
  background:var(--bg);
  border-left:4px solid var(--accent);
  border-radius:0 var(--radius-md) var(--radius-md) 0;
  font-family:var(--font-serif);
  font-size:18px;line-height:1.8;
  color:var(--primary-dark);
}
.article-body blockquote p{margin-bottom:0;}
.article-body img{
  border-radius:var(--radius-md);
  margin:32px auto;
  box-shadow:var(--shadow-rest);
}
.article-body hr{
  border:none;border-top:1px solid var(--border);
  margin:40px 0;
}
.article-body a{
  color:var(--accent);
  text-decoration:underline;
  text-underline-offset:3px;
}
.article-body a:hover{color:var(--accent-dark);}
.article-body strong{font-weight:600;color:var(--primary-dark);}

/* ===== Related ===== */
.related-section{
  padding:72px 0 32px;
}
.section-title{
  font-family:var(--font-serif);
  font-size:32px;line-height:1.3;
  color:var(--primary-dark);
  text-align:center;
  margin-bottom:16px;
  position:relative;
}
.section-title::after{
  content:'';display:block;
  width:48px;height:2px;
  background:var(--primary);
  margin:16px auto 0;
}
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  margin-top:48px;
}
.related-card{
  background:var(--white);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-rest);
  transition:transform 0.3s ease,box-shadow 0.3s ease;
  display:flex;flex-direction:column;
}
.related-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
}
.related-card .card-img{
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--bg);
}
.related-card .card-img img{
  width:100%;height:100%;object-fit:cover;
  transition:transform 0.4s ease;
}
.related-card:hover .card-img img{transform:scale(1.04);}
.related-card .card-body{
  padding:20px 20px 16px;
  display:flex;flex-direction:column;flex:1;
}
.card-tag{
  display:inline-block;
  background:var(--primary);
  color:#fff;
  font-size:12px;font-weight:500;
  padding:4px 10px;
  border-radius:var(--radius-sm);
  margin-bottom:12px;
  align-self:flex-start;
  letter-spacing:0.5px;
}
.related-card .card-title{
  font-family:var(--font-serif);
  font-size:18px;line-height:1.5;
  color:var(--primary-dark);
  font-weight:600;
  margin-bottom:10px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  min-height:54px;
}
.related-card .card-excerpt{
  font-size:14px;line-height:1.6;
  color:var(--text-weak);
  margin-bottom:16px;
  flex:1;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.related-card .card-footer{
  display:flex;justify-content:space-between;align-items:center;
  padding-top:12px;
  border-top:1px solid var(--border);
  font-size:13px;color:var(--text-weak);
}
.card-footer .read-link{
  font-size:14px;color:var(--accent);
  font-weight:500;
}
.card-footer .read-link:hover{color:var(--accent-dark);}

/* ===== Article Nav ===== */
.article-nav{
  padding:48px 0 80px;
}
.article-nav-inner{
  max-width:760px;margin:0 auto;
}
.btn-back-row{
  display:flex;justify-content:space-between;align-items:center;
  flex-wrap:wrap;gap:16px;
  margin-bottom:32px;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:14px 28px;
  border-radius:6px;
  font-size:16px;font-weight:500;
  transition:background 0.25s ease,color 0.25s ease,transform 0.25s ease,box-shadow 0.25s ease;
  border:1px solid transparent;
}
.btn-primary{
  background:var(--accent);
  color:#fff;
}
.btn-primary:hover{
  background:var(--accent-dark);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 8px 20px rgba(201,111,60,0.3);
}
.btn-outline{
  background:transparent;
  color:var(--primary);
  border:1px solid var(--primary);
}
.btn-outline:hover{
  background:var(--primary);
  color:#fff;
  transform:translateY(-2px);
}
.prev-next{
  display:grid;grid-template-columns:1fr 1fr;gap:16px;
}
.prev-next a{
  background:var(--white);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  padding:16px 20px;
  font-size:14px;line-height:1.6;
  color:var(--text);
  transition:all 0.25s ease;
  display:block;
}
.prev-next a:hover{
  border-color:var(--primary);
  color:var(--primary);
  box-shadow:var(--shadow-rest);
}
.prev-next .pn-label{
  font-size:12px;color:var(--text-weak);
  display:block;margin-bottom:4px;
}
.prev-next .pn-title{
  font-weight:500;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.prev-next .pn-next{text-align:right;}

/* ===== Not Found ===== */
.not-found-section{
  padding:120px 24px;
  text-align:center;
  min-height:50vh;
  display:flex;align-items:center;justify-content:center;
}
.not-found-inner{
  max-width:520px;margin:0 auto;
}
.not-found-icon{
  width:80px;height:80px;
  border-radius:50%;
  background:var(--bg);
  border:2px solid var(--border);
  display:flex;align-items:center;justify-content:center;
  margin:0 auto 32px;
}
.not-found-icon svg{width:36px;height:36px;stroke:var(--text-weak);}
.not-found-inner h1{
  font-family:var(--font-serif);
  font-size:36px;color:var(--primary-dark);
  margin-bottom:16px;
}
.not-found-inner p{
  color:var(--text-weak);
  margin-bottom:32px;
}

/* ===== Footer ===== */
.site-footer{
  background:var(--primary-dark);
  color:rgba(247,244,238,0.9);
  margin-top:80px;
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr;
  gap:48px;
  padding:64px 0 48px;
  border-bottom:1px solid rgba(255,255,255,0.1);
}
.site-footer h4{
  font-family:var(--font-serif);
  font-size:18px;font-weight:600;
  color:var(--bg);
  margin-bottom:20px;
  letter-spacing:0.5px;
}
.footer-about p{
  font-size:15px;line-height:1.8;
  color:rgba(247,244,238,0.75);
  max-width:320px;
}
.footer-contact p{
  font-size:15px;line-height:1.9;
  color:rgba(247,244,238,0.75);
}
.footer-links{
  display:flex;flex-direction:column;gap:10px;
}
.footer-links a{
  color:rgba(247,244,238,0.75);
  font-size:15px;
  transition:color 0.25s ease;
}
.footer-links a:hover{color:var(--accent);}
.footer-bottom{
  padding:24px 0;
  text-align:center;
  font-size:13px;
  color:rgba(247,244,238,0.5);
}

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

/* ===== Responsive ===== */
@media (max-width:1280px){
  .container{padding:0 24px;}
}
@media (max-width:1024px){
  .main-nav{gap:20px;}
  .related-grid{grid-template-columns:repeat(3,1fr);gap:16px;}
  .article-title{font-size:38px;}
  .article-body{padding:48px 40px;}
}
@media (max-width:768px){
  :root{--space-section:64px;}
  .nav-toggle{
    display:flex;
  }
  .main-nav{
    position:fixed;top:80px;left:0;right:0;bottom:0;
    flex-direction:column;
    align-items:flex-start;
    background:var(--bg);
    padding:40px 24px;
    gap:8px;
    transform:translateX(100%);
    transition:transform 0.35s ease;
    z-index:99;
    overflow-y:auto;
  }
  .main-nav.open{
    transform:translateX(0);
  }
  .main-nav .nav-link{
    font-size:22px;
    padding:16px 0;
    width:100%;
    border-bottom:1px solid var(--border);
    font-family:var(--font-serif);
  }
  .main-nav .nav-link::after{display:none;}
  .main-nav .nav-link.active{
    color:var(--primary);
    padding-left:16px;
    border-left:4px solid var(--primary);
  }
  .article-head{padding:40px 0 32px;}
  .article-title{font-size:30px;}
  .article-meta{gap:12px;flex-direction:column;align-items:flex-start;}
  .article-content{padding:40px 0 16px;}
  .article-body{padding:32px 24px;border-radius:var(--radius-md);}
  .article-body h2{font-size:24px;margin:36px 0 16px;}
  .article-body h3{font-size:20px;}
  .article-body p{font-size:16px;line-height:1.85;margin-bottom:20px;}
  .related-section{padding:56px 0 24px;}
  .section-title{font-size:28px;}
  .related-grid{
    grid-template-columns:1fr;
    gap:20px;
    margin-top:32px;
  }
  .article-nav{padding:32px 0 64px;}
  .prev-next{grid-template-columns:1fr;}
  .btn-back-row{flex-direction:column;align-items:flex-start;}
  .footer-grid{
    grid-template-columns:1fr;
    gap:32px;
    padding:48px 0 32px;
  }
  .container{padding:0 16px;}
  .footer-bottom{padding:20px 0;}
}
@media (max-width:520px){
  .brand{font-size:19px;}
  .article-title{font-size:26px;}
  .article-body{padding:24px 18px;}
  .section-title{font-size:24px;}
  .related-card .card-title{font-size:17px;}
}

/* roulang page: category1 */
:root {
            --primary: #1F3D2B;
            --primary-dark: #14281E;
            --accent: #C96F3C;
            --accent-dark: #A8562F;
            --bg: #F7F4EE;
            --bg-soft: #EFEBE3;
            --white: #FFFFFF;
            --text: #2E352F;
            --text-light: #6B7368;
            --border: #E3DED3;
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --shadow: 0 4px 12px rgba(20, 40, 30, 0.06);
            --shadow-lg: 0 12px 32px rgba(20, 40, 30, 0.12);
            --font-serif: "Noto Serif SC", "Source Han Serif SC", Georgia, "Songti SC", serif;
            --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
            --container: 1200px;
            --gap: 24px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            font-size: 17px;
            line-height: 1.8;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s;
        }

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

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

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 14px 32px;
            border-radius: 6px;
            font-size: 16px;
            font-weight: 500;
            line-height: 1.2;
            letter-spacing: 0.01em;
            transition: all 0.25s ease;
            outline: none;
        }

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

        .btn-primary:hover,
        .btn-primary:focus-visible {
            background: var(--accent-dark);
            border-color: var(--accent-dark);
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }

        .btn-outline {
            background: transparent;
            color: var(--white);
            border: 1px solid rgba(255, 255, 255, 0.7);
        }

        .btn-outline:hover,
        .btn-outline:focus-visible {
            border-color: var(--white);
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-2px);
        }

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

        .btn-outline-dark:hover,
        .btn-outline-dark:focus-visible {
            background: var(--primary);
            color: var(--white);
            transform: translateY(-2px);
            box-shadow: var(--shadow);
        }

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

        /* ===== Header ===== */
        .site-header {
            background: var(--bg);
            border-bottom: 1px solid var(--border);
            height: 80px;
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .nav-wrap {
            height: 80px;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .brand {
            font-family: var(--font-serif);
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

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

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

        .main-nav .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            padding: 26px 2px;
            border-bottom: 2px solid transparent;
            transition: color 0.25s, border-color 0.25s;
            white-space: nowrap;
        }

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

        .main-nav .nav-link.active {
            color: var(--primary);
            border-bottom-color: var(--primary);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 44px;
            height: 44px;
            padding: 10px;
            border-radius: var(--radius-sm);
            background: transparent;
        }

        .nav-toggle .bar {
            display: block;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: transform 0.3s;
        }

        .nav-toggle:hover {
            background: var(--bg-soft);
        }

        /* ===== Page Hero ===== */
        .page-hero {
            position: relative;
            padding: 110px 0 90px;
            background: linear-gradient(rgba(247, 244, 238, 0.92), rgba(247, 244, 238, 0.94)), url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            border-bottom: 1px solid var(--border);
            overflow: hidden;
        }

        .page-hero::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 120px;
            height: 4px;
            background: var(--accent);
            border-radius: 0 4px 4px 0;
        }

        .page-hero-inner {
            max-width: 820px;
        }

        .hero-eyebrow {
            display: inline-block;
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.12em;
            color: var(--accent);
            text-transform: uppercase;
            margin-bottom: 16px;
            padding: 6px 14px;
            background: rgba(201, 111, 60, 0.1);
            border-radius: 999px;
        }

        .page-title {
            font-family: var(--font-serif);
            font-size: 44px;
            font-weight: 700;
            line-height: 1.25;
            color: var(--primary);
            margin-bottom: 18px;
        }

        .page-desc {
            font-size: 17px;
            line-height: 1.8;
            color: var(--text-light);
            max-width: 640px;
            margin-bottom: 32px;
        }

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

        /* ===== Section ===== */
        .section {
            padding: 96px 0;
        }

        .section-tag {
            display: inline-block;
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--accent);
            margin-bottom: 12px;
            padding: 4px 12px;
            background: rgba(201, 111, 60, 0.08);
            border-radius: 999px;
        }

        .section-title {
            font-family: var(--font-serif);
            font-size: 36px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--primary);
            margin-bottom: 16px;
        }

        .section-sub {
            font-size: 17px;
            color: var(--text-light);
            max-width: 640px;
            line-height: 1.8;
        }

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

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

        .section-head.center .section-sub {
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== Intro ===== */
        .intro-section {
            background: var(--bg);
        }

        .intro-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 64px;
            align-items: start;
        }

        .intro-text {
            padding-top: 24px;
        }

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

        .intro-list {
            list-style: none;
            margin-top: 28px;
        }

        .intro-list li {
            position: relative;
            padding-left: 32px;
            font-size: 16px;
            line-height: 1.8;
            color: var(--text);
            margin-bottom: 12px;
        }

        .intro-list li::before {
            content: "";
            position: absolute;
            left: 0;
            top: 10px;
            width: 16px;
            height: 16px;
            border: 2px solid var(--accent);
            border-radius: 50%;
            background: rgba(201, 111, 60, 0.15);
        }

        .intro-media {
            margin-top: 48px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .intro-media img {
            width: 100%;
            height: 420px;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .intro-media:hover img {
            transform: scale(1.02);
        }

        .intro-media-caption {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.85);
            font-size: 14px;
            padding: 12px 20px;
            text-align: center;
            letter-spacing: 0.02em;
        }

        /* ===== Capability ===== */
        .capability-section {
            background: var(--bg-soft);
        }

        .capability-grid {
            display: grid;
            grid-template-columns: 1.15fr 1fr;
            gap: 24px;
        }

        .cap-card {
            background: var(--white);
            border-radius: var(--radius-lg);
            padding: 36px;
            box-shadow: var(--shadow);
            transition: box-shadow 0.3s ease, transform 0.3s ease;
            border: 1px solid transparent;
        }

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

        .cap-card .cap-icon {
            width: 48px;
            height: 48px;
            border-radius: 10px;
            background: rgba(31, 61, 43, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
        }

        .cap-card .cap-icon svg {
            width: 24px;
            height: 24px;
            stroke: var(--primary);
            fill: none;
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        .cap-card h3 {
            font-family: var(--font-serif);
            font-size: 22px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .cap-card p {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-light);
        }

        .cap-featured {
            grid-row: span 2;
            background: var(--primary-dark);
            color: var(--white);
            display: flex;
            flex-direction: column;
            justify-content: flex-start;
            padding: 44px 40px;
            position: relative;
            overflow: hidden;
        }

        .cap-featured::before {
            content: "";
            position: absolute;
            right: -80px;
            top: -80px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
        }

        .cap-featured .cap-icon {
            background: rgba(255, 255, 255, 0.1);
        }

        .cap-featured .cap-icon svg {
            stroke: var(--accent);
        }

        .cap-featured h3 {
            color: var(--white);
            font-size: 26px;
            margin-bottom: 18px;
        }

        .cap-featured p {
            color: rgba(255, 255, 255, 0.82);
            font-size: 16px;
            line-height: 1.9;
        }

        .cap-featured .feature-list {
            list-style: none;
            margin-top: 24px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.15);
        }

        .cap-featured .feature-list li {
            position: relative;
            padding-left: 26px;
            font-size: 15px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.88);
            margin-bottom: 10px;
        }

        .cap-featured .feature-list li::before {
            content: "";
            position: absolute;
            left: 0;
            top: 8px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--accent);
            box-shadow: 0 0 0 3px rgba(201, 111, 60, 0.25);
        }

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

        .scenario-grid {
            display: grid;
            grid-template-columns: 0.9fr 1.1fr;
            gap: 60px;
            align-items: center;
        }

        .scenario-media {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            height: 460px;
        }

        .scenario-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

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

        .scenario-item {
            display: flex;
            gap: 20px;
            padding: 24px 0;
            border-bottom: 1px solid var(--border);
            transition: background 0.25s;
        }

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

        .scenario-item .item-icon {
            flex: 0 0 48px;
            width: 48px;
            height: 48px;
            border-radius: 10px;
            background: rgba(31, 61, 43, 0.07);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .scenario-item .item-icon svg {
            width: 22px;
            height: 22px;
            stroke: var(--primary);
            fill: none;
            stroke-width: 2;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        .scenario-item h3 {
            font-family: var(--font-serif);
            font-size: 19px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 6px;
        }

        .scenario-item p {
            font-size: 15px;
            line-height: 1.75;
            color: var(--text-light);
        }

        .scenario-item:hover .item-icon {
            background: rgba(201, 111, 60, 0.12);
        }

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

        .process-list {
            max-width: 780px;
            margin: 0 auto;
            position: relative;
            padding-left: 40px;
        }

        .process-list::before {
            content: "";
            position: absolute;
            left: 15px;
            top: 12px;
            bottom: 12px;
            width: 2px;
            background: linear-gradient(to bottom, var(--primary), var(--accent));
            border-radius: 2px;
        }

        .process-item {
            position: relative;
            padding-bottom: 48px;
            padding-left: 28px;
        }

        .process-item:last-child {
            padding-bottom: 0;
        }

        .process-item::before {
            content: "";
            position: absolute;
            left: -40px;
            top: 8px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--white);
            border: 3px solid var(--primary);
            box-shadow: 0 0 0 4px rgba(31, 61, 43, 0.12);
            z-index: 2;
        }

        .process-num {
            font-family: Georgia, serif;
            font-size: 14px;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: 0.08em;
            display: block;
            margin-bottom: 4px;
        }

        .process-content {
            background: var(--white);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border);
            transition: box-shadow 0.3s ease, transform 0.3s ease;
        }

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

        .process-content h3 {
            font-family: var(--font-serif);
            font-size: 20px;
            font-weight: 600;
            color: var(--primary);
            margin-bottom: 6px;
        }

        .process-content p {
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.7;
        }

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

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

        .faq-item {
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            overflow: hidden;
            transition: box-shadow 0.3s ease;
        }

        .faq-item.active {
            box-shadow: var(--shadow);
            border-color: transparent;
        }

        .faq-q {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 24px;
            cursor: pointer;
            font-family: var(--font-serif);
            font-size: 17px;
            font-weight: 600;
            color: var(--primary);
            line-height: 1.5;
            transition: color 0.25s;
        }

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

        .faq-icon {
            position: relative;
            flex: 0 0 24px;
            width: 24px;
            height: 24px;
            margin-left: 16px;
            border-radius: 50%;
            background: rgba(31, 61, 43, 0.08);
            transition: background 0.3s, transform 0.3s;
        }

        .faq-icon::before,
        .faq-icon::after {
            content: "";
            position: absolute;
            background: var(--primary);
            border-radius: 2px;
            transition: background 0.3s;
        }

        .faq-icon::before {
            width: 10px;
            height: 2px;
            top: 11px;
            left: 7px;
        }

        .faq-icon::after {
            width: 2px;
            height: 10px;
            top: 7px;
            left: 11px;
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background: rgba(201, 111, 60, 0.12);
        }

        .faq-item.active .faq-icon::before,
        .faq-item.active .faq-icon::after {
            background: var(--accent);
        }

        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 24px;
        }

        .faq-item.active .faq-a {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        .faq-a p {
            font-size: 15px;
            line-height: 1.85;
            color: var(--text-light);
            border-top: 1px solid var(--border);
            padding-top: 16px;
        }

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

        .cta-box {
            position: relative;
            background: linear-gradient(rgba(20, 40, 30, 0.92), rgba(20, 40, 30, 0.94)), url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            border-radius: 16px;
            padding: 72px 56px;
            text-align: center;
            margin: 96px 0;
            overflow: hidden;
        }

        .cta-box::before {
            content: "";
            position: absolute;
            left: 50%;
            top: -100px;
            transform: translateX(-50%);
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(201, 111, 60, 0.08);
            pointer-events: none;
        }

        .cta-box h2 {
            font-family: var(--font-serif);
            font-size: 34px;
            font-weight: 700;
            color: var(--white);
            line-height: 1.35;
            margin-bottom: 16px;
        }

        .cta-box p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 560px;
            margin: 0 auto 36px;
            line-height: 1.8;
        }

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

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.9);
            padding: 64px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.9fr 0.9fr;
            gap: 48px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .footer-grid h4 {
            font-family: var(--font-serif);
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 20px;
            color: var(--white);
        }

        .footer-about p {
            font-size: 15px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.75);
            max-width: 320px;
        }

        .footer-contact p {
            font-size: 15px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 6px;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.75);
            transition: color 0.25s;
        }

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

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

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

            .intro-media img {
                height: 340px;
            }

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

            .scenario-media {
                height: 380px;
            }

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

            .cap-featured {
                grid-row: auto;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .site-header {
                height: 64px;
            }

            .nav-wrap {
                height: 64px;
            }

            .nav-toggle {
                display: flex;
            }

            .main-nav {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: var(--bg);
                flex-direction: column;
                align-items: flex-start;
                padding: 24px 16px;
                gap: 8px;
                border-bottom: 1px solid var(--border);
                transform: translateY(-120%);
                opacity: 0;
                visibility: hidden;
                transition: all 0.35s ease;
                box-shadow: var(--shadow-lg);
                z-index: 99;
            }

            .main-nav.open {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }

            .main-nav .nav-link {
                width: 100%;
                padding: 14px 8px;
                font-size: 16px;
                border-bottom: 1px solid transparent;
                border-radius: var(--radius-sm);
            }

            .main-nav .nav-link:hover {
                background: rgba(31, 61, 43, 0.05);
            }

            .main-nav .nav-link.active {
                border-bottom-color: var(--primary);
                border-radius: 0;
            }

            .brand {
                font-size: 19px;
            }

            .page-hero {
                padding: 72px 0 56px;
            }

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

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

            .hero-actions {
                flex-direction: column;
                align-items: flex-start;
            }

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

            .section {
                padding: 64px 0;
            }

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

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

            .section-head {
                margin-bottom: 36px;
            }

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

            .intro-text {
                padding-top: 0;
            }

            .intro-media {
                margin-top: 16px;
            }

            .intro-media img {
                height: 260px;
            }

            .capability-grid {
                gap: 16px;
            }

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

            .cap-featured {
                padding: 32px 24px;
            }

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

            .scenario-media {
                height: 280px;
                order: -1;
            }

            .process-section {
                padding: 64px 0;
            }

            .process-list {
                padding-left: 30px;
            }

            .process-item {
                padding-left: 18px;
                padding-bottom: 36px;
            }

            .process-item::before {
                left: -30px;
                width: 10px;
                height: 10px;
            }

            .process-content {
                padding: 18px 20px;
            }

            .faq-q {
                font-size: 15px;
                padding: 16px 18px;
            }

            .faq-a {
                padding: 0 18px;
            }

            .faq-item.active .faq-a {
                padding: 0 18px 16px;
            }

            .cta-box {
                padding: 48px 24px;
                margin: 64px 0;
                border-radius: 12px;
            }

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

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

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

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
                padding-bottom: 36px;
            }

            .footer-grid h4 {
                margin-bottom: 14px;
            }
        }

        @media (max-width: 520px) {
            body {
                font-size: 16px;
            }

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

            .hero-eyebrow {
                font-size: 12px;
            }

            .btn {
                padding: 13px 24px;
                font-size: 15px;
                width: 100%;
            }

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

            .cap-featured h3 {
                font-size: 22px;
            }

            .scenario-item {
                gap: 14px;
                padding: 20px 0;
            }

            .scenario-item .item-icon {
                flex-basis: 40px;
                width: 40px;
                height: 40px;
            }

            .process-content h3 {
                font-size: 18px;
            }

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

            .cta-box h2 {
                font-size: 22px;
            }

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

/* roulang page: category2 */
:root {
  --primary: #1F3D2B;
  --primary-dark: #14281E;
  --accent: #C96F3C;
  --bg: #F7F4EE;
  --text: #2E352F;
  --text-weak: #6B7368;
  --border: #E3DED3;
  --success: #3D7B52;
  --white: #FFFFFF;
  --radius-sm: 4px;
  --radius: 8px;
  --radius-lg: 12px;
  --shadow: 0 4px 12px rgba(20, 40, 30, 0.06);
  --shadow-lg: 0 12px 32px rgba(20, 40, 30, 0.12);
  --transition: 0.25s ease;
  --font-serif: "Noto Serif SC", "Source Han Serif SC", Georgia, "Songti SC", serif;
  --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --container: 1200px;
  --space-section: 96px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.8;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

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

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

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

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

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

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

.section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--primary);
  background: rgba(31, 61, 43, 0.08);
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 16px;
}

.section-title {
  font-family: var(--font-serif);
  font-size: 36px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--primary-dark);
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 17px;
  color: var(--text-weak);
  max-width: 640px;
  line-height: 1.8;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  border-radius: 6px;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.4;
  transition: all var(--transition);
  border: 1px solid transparent;
}

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

.btn-primary:hover {
  background: #b05a2e;
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(201, 111, 60, 0.25);
}

.btn-outline-light {
  border-color: rgba(255, 255, 255, 0.85);
  color: var(--white);
  background: transparent;
}

.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--white);
}

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

.btn-outline-dark:hover {
  background: var(--primary);
  color: var(--white);
}

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

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 80px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
}

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

.brand {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 0.01em;
  white-space: nowrap;
}

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

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

.nav-link {
  font-size: 15px;
  color: var(--text);
  padding: 28px 0;
  position: relative;
  font-weight: 500;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

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

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

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

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}

.nav-toggle .bar {
  width: 22px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: all var(--transition);
}

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

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

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

/* Page Hero */
.page-hero {
  background: linear-gradient(rgba(247, 244, 238, 0.93), rgba(247, 244, 238, 0.93)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  padding: 88px 0 80px;
  border-bottom: 1px solid var(--border);
}

.page-hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.page-hero h1 {
  font-family: var(--font-serif);
  font-size: 48px;
  line-height: 1.25;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 20px;
}

.page-hero p {
  font-size: 17px;
  line-height: 1.8;
  color: var(--text-weak);
  max-width: 520px;
}

.page-hero-hero-actions {
  display: flex;
  gap: 16px;
  margin-top: 32px;
  flex-wrap: wrap;
}

.hero-badge {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  background: rgba(31, 61, 43, 0.08);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 20px;
}

.page-hero-media {
  position: relative;
}

.page-hero-media img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  aspect-ratio: 4/3;
  object-fit: cover;
  width: 100%;
}

.page-hero-media::before {
  content: "";
  position: absolute;
  inset: -16px 16px 16px -16px;
  background: rgba(201, 111, 60, 0.12);
  border-radius: var(--radius-lg);
  z-index: -1;
}

/* Feature Split */
.feature-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}

.feature-media {
  position: relative;
}

.feature-media img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  aspect-ratio: 5/4;
  object-fit: cover;
  width: 100%;
}

.feature-media .exp {
  position: absolute;
  bottom: 24px;
  left: 24px;
  background: rgba(20, 40, 30, 0.9);
  color: #fff;
  font-size: 14px;
  padding: 10px 20px;
  border-radius: 999px;
  backdrop-filter: blur(4px);
}

.feature-content .section-tag {
  margin-bottom: 12px;
}

.feature-content .section-title {
  margin-bottom: 20px;
}

.feature-content p {
  color: var(--text-weak);
  margin-bottom: 24px;
  line-height: 1.9;
}

.feature-list {
  list-style: none;
  margin: 24px 0 32px;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 0;
  font-size: 16px;
  color: var(--text);
  border-bottom: 1px solid var(--border);
}

.feature-list li:last-child {
  border-bottom: none;
}

.feature-list .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
  margin-top: 10px;
}

/* Timeline */
.timeline-section {
  background: var(--white);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.timeline-header {
  text-align: center;
  margin-bottom: 64px;
}

.timeline-header .section-tag {
  margin-bottom: 12px;
}

.timeline-header .section-subtitle {
  margin: 0 auto;
}

.timeline {
  position: relative;
  max-width: 920px;
  margin: 0 auto;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--primary);
  transform: translateX(-50%);
  border-radius: 2px;
}

.timeline-item {
  position: relative;
  display: flex;
  justify-content: flex-end;
  width: 50%;
  padding: 24px 48px 24px 0;
}

.timeline-item:nth-child(even) {
  align-self: flex-end;
  justify-content: flex-start;
  width: 50%;
  padding: 24px 0 24px 48px;
}

.timeline-dot {
  position: absolute;
  right: -10px;
  top: 36px;
  width: 18px;
  height: 18px;
  background: var(--primary);
  border-radius: 50%;
  border: 3px solid var(--bg);
  box-shadow: 0 0 0 2px var(--primary);
  z-index: 1;
}

.timeline-item:nth-child(even) .timeline-dot {
  left: -10px;
  right: auto;
}

.timeline-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 28px;
  transition: all var(--transition);
  max-width: 400px;
}

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

.timeline-card .step {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 8px;
  letter-spacing: 0.04em;
}

.timeline-card h3 {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 600;
  color: var(--primary-dark);
  margin-bottom: 8px;
}

.timeline-card p {
  font-size: 15px;
  color: var(--text-weak);
  line-height: 1.7;
}

/* Stats Banner + Feature Block */
.stats-banner {
  background: var(--primary-dark);
  padding: 72px 0;
}

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

.stat-item .num {
  font-family: var(--font-serif);
  font-size: 44px;
  font-weight: 700;
  color: var(--white);
  line-height: 1.2;
}

.stat-item .num span {
  font-size: 24px;
  color: var(--accent);
}

.stat-item .label {
  font-size: 14px;
  color: rgba(247, 244, 238, 0.75);
  margin-top: 8px;
  letter-spacing: 0.04em;
}

.feature-block-wrap {
  padding-top: var(--space-section);
}

.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}

.feature-block-media img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  aspect-ratio: 4/3;
  object-fit: cover;
  width: 100%;
}

.feature-block-content .section-tag {
  margin-bottom: 12px;
}

.feature-block-content .section-title {
  margin-bottom: 20px;
}

.feature-block-content p {
  color: var(--text-weak);
  margin-bottom: 20px;
  line-height: 1.9;
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.tech-tags span {
  font-size: 13px;
  font-weight: 500;
  color: var(--primary);
  background: rgba(31, 61, 43, 0.07);
  border: 1px solid rgba(31, 61, 43, 0.12);
  padding: 6px 14px;
  border-radius: 999px;
}

/* FAQ */
.faq-section {
  background: var(--white);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.faq-header {
  text-align: center;
  margin-bottom: 48px;
}

.faq-header .section-tag {
  margin-bottom: 12px;
}

.faq-header .section-subtitle {
  margin: 0 auto;
}

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

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

.faq-item.active {
  box-shadow: var(--shadow);
  border-color: rgba(31, 61, 43, 0.25);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  text-align: left;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: color var(--transition);
}

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

.faq-icon {
  position: relative;
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  margin-left: 16px;
}

.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  background: var(--accent);
  border-radius: 2px;
  transition: all var(--transition);
}

.faq-icon::before {
  width: 16px;
  height: 2px;
  top: 7px;
  left: 0;
}

.faq-icon::after {
  width: 2px;
  height: 16px;
  top: 0;
  left: 7px;
}

.faq-item.active .faq-icon::after {
  transform: scaleY(0);
}

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

.faq-answer-inner {
  padding: 0 24px 24px;
  font-size: 15px;
  color: var(--text-weak);
  line-height: 1.9;
}

.faq-item.active .faq-answer {
  max-height: 600px;
}

/* CTA */
.cta-section {
  padding: var(--space-section) 0;
}

.cta-card {
  background: var(--primary-dark);
  border-radius: var(--radius-lg);
  padding: 72px 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.cta-card::before {
  content: "";
  position: absolute;
  right: -40px;
  bottom: -60px;
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, rgba(201, 111, 60, 0.25) 0%, transparent 70%);
  border-radius: 50%;
}

.cta-card h2 {
  font-family: var(--font-serif);
  font-size: 32px;
  font-weight: 700;
  color: var(--white);
  line-height: 1.4;
  margin-bottom: 12px;
}

.cta-card p {
  font-size: 16px;
  color: rgba(247, 244, 238, 0.85);
  line-height: 1.8;
  max-width: 520px;
}

.cta-actions {
  display: flex;
  gap: 16px;
  flex-shrink: 0;
  flex-wrap: wrap;
}

.cta-phone {
  display: block;
  margin-top: 16px;
  font-size: 15px;
  color: rgba(247, 244, 238, 0.7);
}

.cta-phone a {
  color: var(--white);
  font-weight: 500;
}

/* Footer */
.site-footer {
  background: var(--primary-dark);
  color: rgba(247, 244, 238, 0.9);
  padding: 64px 0 0;
  margin-top: 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

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

.footer-about h4,
.footer-contact h4,
.footer-links h4 {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 16px;
}

.footer-about p {
  font-size: 15px;
  line-height: 1.8;
  color: rgba(247, 244, 238, 0.75);
  max-width: 360px;
}

.footer-contact p {
  font-size: 15px;
  line-height: 1.9;
  color: rgba(247, 244, 238, 0.75);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  font-size: 15px;
  color: rgba(247, 244, 238, 0.75);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(247, 244, 238, 0.6);
}

/* Responsive */
@media (max-width: 1024px) {
  :root {
    --space-section: 80px;
  }

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

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

  .feature-split {
    gap: 48px;
  }

  .feature-block {
    gap: 48px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px 24px;
  }

  .cta-card {
    flex-direction: column;
    align-items: flex-start;
    padding: 56px 48px;
  }

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

@media (max-width: 768px) {
  :root {
    --space-section: 64px;
  }

  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    background: var(--bg);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 0 24px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
    transform: translateY(-120%);
    transition: transform 0.35s ease;
    visibility: hidden;
    opacity: 0;
  }

  .main-nav.open {
    transform: translateY(0);
    visibility: visible;
    opacity: 1;
  }

  .nav-link {
    width: 100%;
    padding: 16px 0;
    border-bottom: 1px solid var(--border);
    font-size: 17px;
  }

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

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

  .page-hero {
    padding: 64px 0 56px;
  }

  .page-hero-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

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

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

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

  .feature-media {
    order: -1;
  }

  .timeline::before {
    left: 20px;
    transform: none;
  }

  .timeline-item,
  .timeline-item:nth-child(even) {
    width: 100%;
    justify-content: flex-start;
    padding: 20px 0 20px 56px;
  }

  .timeline-dot,
  .timeline-item:nth-child(even) .timeline-dot {
    left: 12px;
    right: auto;
  }

  .timeline-card {
    max-width: none;
  }

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

  .feature-block-media {
    order: -1;
  }

  .cta-card {
    padding: 48px 32px;
  }

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

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

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

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

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

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

  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px 16px;
  }

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

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

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

  .btn {
    padding: 12px 24px;
    font-size: 15px;
  }
}

/* roulang page: category3 */
:root {
  --primary: #1F3D2B;
  --primary-dark: #14281E;
  --accent: #C96F3C;
  --bg: #F7F4EE;
  --text: #2E352F;
  --text-light: #6B7368;
  --border: #E3DED3;
  --white: #FFFFFF;
  --success: #3D7B52;
  --warning: #C96F3C;
  --error: #B1453A;
  --info: #5B7D9D;
  --radius-sm: 4px;
  --radius: 8px;
  --radius-lg: 12px;
  --shadow-sm: 0 4px 12px rgba(20, 40, 30, 0.06);
  --shadow-lg: 0 12px 32px rgba(20, 40, 30, 0.12);
  --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", Georgia, "SimSun", serif;
  --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --max-width: 1200px;
  --spacing-section: 96px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.8;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.25s ease, border-color 0.25s ease, background 0.25s ease;
}

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

input, textarea, select {
  font-family: inherit;
  font-size: 15px;
}

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

/* ===== Header & Nav ===== */
.site-header {
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  height: 80px;
  display: flex;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
}

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

.brand {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 0.02em;
  white-space: nowrap;
}

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

.main-nav .nav-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  padding: 28px 2px 26px;
  position: relative;
  letter-spacing: 0.02em;
}

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

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

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

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

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}

.nav-toggle .bar {
  width: 24px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* ===== Page Hero ===== */
.page-hero {
  padding: 120px 0 72px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.page-hero .hero-inner {
  max-width: 840px;
}

.page-hero h1 {
  font-family: var(--font-serif);
  font-size: 48px;
  font-weight: 700;
  line-height: 1.25;
  color: var(--primary);
  margin-bottom: 20px;
  letter-spacing: 0.01em;
}

.page-hero .hero-desc {
  font-size: 18px;
  line-height: 1.9;
  color: var(--text-light);
  max-width: 720px;
}

.page-hero .hero-tag {
  display: inline-block;
  margin-bottom: 24px;
  background: var(--primary);
  color: var(--white);
  font-size: 13px;
  font-weight: 500;
  padding: 4px 14px;
  border-radius: var(--radius-sm);
  letter-spacing: 0.04em;
}

/* ===== Stats Banner ===== */
.stats-banner {
  background: var(--primary-dark);
  padding: 72px 0;
}

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

.stat-item {
  text-align: center;
  position: relative;
}

.stat-item + .stat-item::before {
  content: "";
  position: absolute;
  left: -24px;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 60px;
  background: rgba(255, 255, 255, 0.1);
}

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

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

.stat-item .stat-label {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.75);
  letter-spacing: 0.03em;
}

/* ===== Split Blocks ===== */
.split-block {
  padding: var(--spacing-section) 0;
}

.split-block-alt {
  background: var(--bg);
}

.split-block-rev {
  background: var(--white);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

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

.split-media img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.split-media:hover img {
  transform: scale(1.03);
}

.split-content .section-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 14px;
  display: inline-block;
  border-left: 3px solid var(--accent);
  padding-left: 12px;
}

.split-content h2 {
  font-family: var(--font-serif);
  font-size: 32px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--primary);
  margin-bottom: 18px;
}

.split-content p {
  font-size: 16px;
  line-height: 1.9;
  color: var(--text-light);
  margin-bottom: 20px;
}

.split-content .feature-list {
  list-style: none;
  margin-top: 20px;
}

.split-content .feature-list li {
  position: relative;
  padding-left: 28px;
  margin-bottom: 14px;
  font-size: 16px;
  color: var(--text);
}

.split-content .feature-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 14px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

/* ===== Process Steps ===== */
.process-section {
  padding: var(--spacing-section) 0;
  background: var(--bg);
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-header .section-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.1em;
  margin-bottom: 12px;
  display: block;
}

.section-header h2 {
  font-family: var(--font-serif);
  font-size: 36px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.3;
  margin-bottom: 14px;
}

.section-header p {
  font-size: 16px;
  color: var(--text-light);
  max-width: 620px;
  margin: 0 auto;
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  counter-reset: step;
}

.process-step {
  background: var(--white);
  border-radius: var(--radius);
  padding: 36px 28px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.3s ease, transform 0.3s ease;
  position: relative;
}

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

.process-step .step-num {
  font-family: var(--font-serif);
  font-size: 40px;
  font-weight: 700;
  color: var(--border);
  line-height: 1;
  margin-bottom: 18px;
  display: block;
}

.process-step h3 {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 10px;
}

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

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

.faq-list {
  max-width: 840px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 16px;
  transition: box-shadow 0.3s ease;
}

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

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 17px;
  font-weight: 500;
  color: var(--text);
  width: 100%;
  text-align: left;
}

.faq-question .faq-icon {
  position: relative;
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  margin-left: 16px;
}

.faq-question .faq-icon::before,
.faq-question .faq-icon::after {
  content: "";
  position: absolute;
  background: var(--primary);
  border-radius: 2px;
  transition: transform 0.3s ease;
}

.faq-question .faq-icon::before {
  width: 16px;
  height: 2px;
  top: 9px;
  left: 2px;
}

.faq-question .faq-icon::after {
  width: 2px;
  height: 16px;
  top: 2px;
  left: 9px;
}

.faq-item.active .faq-icon::after {
  transform: rotate(90deg);
  opacity: 0;
}

.faq-item.active .faq-icon::before {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
}

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

.faq-answer p {
  font-size: 15px;
  color: var(--text-light);
  line-height: 1.8;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

/* ===== CTA ===== */
.cta-section {
  padding: var(--spacing-section) 0;
  background: var(--primary-dark);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -10%;
  width: 40%;
  height: 200%;
  background: radial-gradient(ellipse, rgba(255, 255, 255, 0.04), transparent 70%);
  pointer-events: none;
}

.cta-inner {
  text-align: center;
  position: relative;
  z-index: 1;
}

.cta-inner h2 {
  font-family: var(--font-serif);
  font-size: 36px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 16px;
  line-height: 1.3;
}

.cta-inner p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.75);
  max-width: 560px;
  margin: 0 auto 36px;
  line-height: 1.8;
}

.btn {
  display: inline-block;
  font-size: 16px;
  font-weight: 500;
  padding: 14px 34px;
  border-radius: 6px;
  text-align: center;
  transition: all 0.25s ease;
  letter-spacing: 0.02em;
}

.btn-accent {
  background: var(--accent);
  color: var(--white);
}

.btn-accent:hover {
  background: #b05e2e;
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(201, 111, 60, 0.3);
}

.btn-outline-white {
  background: transparent;
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.5);
}

.btn-outline-white:hover {
  border-color: var(--white);
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-2px);
}

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

.btn-outline-primary:hover {
  background: var(--primary);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.btn-block {
  display: block;
  width: 100%;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--primary-dark);
  padding: 64px 0 0;
  color: rgba(255, 255, 255, 0.9);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
}

.footer-grid h4 {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 18px;
  color: var(--white);
}

.footer-grid p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 8px;
}

.footer-about p {
  max-width: 320px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.75);
  transition: color 0.25s ease;
}

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

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

.footer-bottom span {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
}

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

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  :root {
    --spacing-section: 72px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
  }

  .stat-item + .stat-item::before {
    display: none;
  }

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

  .split-grid {
    gap: 40px;
  }

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

@media (max-width: 768px) {
  :root {
    --spacing-section: 64px;
  }

  .container {
    padding-left: 16px;
    padding-right: 16px;
  }

  .site-header {
    height: 64px;
  }

  .nav-toggle {
    display: flex;
    z-index: 101;
  }

  .main-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 32px;
    transform: translateY(-100%);
    transition: transform 0.35s ease;
    z-index: 100;
  }

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

  .main-nav .nav-link {
    font-size: 22px;
    padding: 12px 24px;
  }

  .main-nav .nav-link::after {
    bottom: 6px;
  }

  .page-hero {
    padding: 80px 0 48px;
  }

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

  .page-hero .hero-desc {
    font-size: 16px;
  }

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

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

  .split-content h2 {
    font-size: 28px;
  }

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

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

  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px 24px;
  }

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

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
    padding-bottom: 24px;
  }

  .btn {
    width: 100%;
    max-width: 360px;
    margin: 0 auto;
  }

  .cta-section .btn {
    display: block;
  }
}

@media (max-width: 520px) {
  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

  .stat-item .stat-num {
    font-size: 28px;
  }

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