/* roulang page: index */
:root {
  --primary: #1F4E45;
  --primary-dark: #14332C;
  --primary-light: #2E6B5C;
  --accent: #C9995B;
  --accent-light: #E0B47E;
  --accent-dark: #A87E45;
  --bg: #F8F5EF;
  --bg-alt: #F0EBE1;
  --bg-dark: #14211D;
  --bg-card: #FFFFFF;
  --text: #262925;
  --text-light: #5C625E;
  --text-lighter: #8A908A;
  --border: #E2DCCF;
  --border-dark: #CFC7B8;
  --white: #FFFFFF;
  --shadow-sm: 0 2px 10px rgba(20, 33, 29, 0.06);
  --shadow: 0 6px 30px rgba(20, 33, 29, 0.08);
  --shadow-lg: 0 16px 50px rgba(20, 33, 29, 0.14);
  --radius-sm: 8px;
  --radius: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", sans-serif;
  --font-display: "Noto Serif SC", "Songti SC", "STSong", serif;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --header-h: 76px;
}
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: var(--font-main);
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  font-size: 16px;
  overflow-x: hidden;
}
a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary-light); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; }
:focus-visible {
  outline: 3px solid rgba(201, 153, 91, 0.6);
  outline-offset: 2px;
}
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; }
.section-alt { background: var(--bg-alt); }
.section-dark { background: var(--bg-dark); color: var(--white); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 700; letter-spacing: 2px;
  text-transform: uppercase; color: var(--accent);
  background: rgba(201, 153, 91, 0.12);
  padding: 6px 18px; border-radius: 100px; margin-bottom: 18px;
}
.section-head h2 {
  font-family: var(--font-display);
  font-size: 38px; font-weight: 700; line-height: 1.3;
  color: var(--text); margin-bottom: 14px;
}
.section-head p { font-size: 17px; color: var(--text-light); }
.section-head.light h2 { color: var(--white); }
.section-head.light p { color: rgba(255,255,255,0.7); }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 32px; border-radius: 100px; font-weight: 600; font-size: 15px;
  line-height: 1.2; transition: all var(--transition); border: 2px solid transparent;
  cursor: pointer; text-decoration: none; white-space: nowrap;
}
.btn-accent { background: var(--accent); color: #2A1E12; }
.btn-accent:hover { background: var(--accent-light); color: #2A1E12; transform: translateY(-2px); box-shadow: 0 12px 30px rgba(201, 153, 91, 0.35); }
.btn-accent:active { transform: translateY(0); background: var(--accent-dark); }
.btn-outline { background: transparent; color: var(--white); border-color: rgba(255,255,255,0.5); }
.btn-outline:hover { background: rgba(255,255,255,0.1); border-color: var(--white); color: var(--white); transform: translateY(-2px); }
.btn-outline-light { background: transparent; color: var(--primary); border-color: var(--primary); }
.btn-outline-light:hover { background: var(--primary); color: var(--white); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(31,78,69,0.25); }
.btn-sm { padding: 10px 22px; font-size: 14px; }
.btn-lg { padding: 16px 40px; font-size: 17px; }

.badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 4px 14px; border-radius: 100px; font-size: 12px; font-weight: 700;
  letter-spacing: 0.4px; background: rgba(31,78,69,0.1); color: var(--primary);
}
.badge-accent { background: rgba(201,153,91,0.15); color: var(--accent-dark); }
.badge-white { background: rgba(255,255,255,0.15); color: var(--white); }

.site-header {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(20, 33, 29, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  height: var(--header-h);
  display: flex; align-items: center;
}
.header-inner { display: flex; align-items: center; justify-content: space-between; width: 100%; gap: 24px; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.brand-icon {
  width: 40px; height: 40px; border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; color: #2A1E12;
  box-shadow: 0 4px 14px rgba(201,153,91,0.4);
}
.brand-name { font-size: 20px; font-weight: 800; color: var(--white); letter-spacing: 0.5px; }
.brand-name span { color: var(--accent); }
.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a {
  padding: 10px 18px; border-radius: 100px; font-size: 14px; font-weight: 500;
  color: rgba(255,255,255,0.75); text-decoration: none; transition: all var(--transition);
  position: relative;
}
.main-nav a:hover { color: var(--white); background: rgba(255,255,255,0.08); }
.main-nav a.active { color: var(--white); font-weight: 600; background: rgba(201,153,91,0.18); }
.main-nav a.active::after {
  content: ""; position: absolute; bottom: 4px; left: 50%; transform: translateX(-50%);
  width: 4px; height: 4px; border-radius: 50%; background: var(--accent);
}
.header-actions { display: flex; align-items: center; gap: 14px; }
.search-box {
  display: flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.1);
  border-radius: 100px; padding: 8px 18px; width: 220px;
  transition: all var(--transition);
}
.search-box i { color: rgba(255,255,255,0.5); font-size: 14px; }
.search-box input {
  background: transparent; border: none; outline: none; color: var(--white);
  font-size: 14px; width: 100%;
}
.search-box input::placeholder { color: rgba(255,255,255,0.4); }
.search-box:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(201,153,91,0.15); }
.menu-toggle {
  display: none; background: transparent; border: 1px solid rgba(255,255,255,0.2);
  border-radius: 8px; width: 42px; height: 42px; color: var(--white); font-size: 18px;
  align-items: center; justify-content: center;
}
.mobile-menu {
  display: none; position: absolute; top: var(--header-h); left: 0; right: 0;
  background: rgba(20,33,29,0.98); border-bottom: 1px solid rgba(255,255,255,0.06);
  padding: 16px 24px 24px; flex-direction: column; gap: 4px;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  padding: 14px 16px; color: rgba(255,255,255,0.8); font-size: 16px; font-weight: 500;
  border-radius: 10px; text-decoration: none; transition: all var(--transition);
}
.mobile-menu a:hover, .mobile-menu a.active { background: rgba(255,255,255,0.08); color: var(--white); }
.mobile-menu a.active { color: var(--accent); }

.hero {
  position: relative; min-height: 720px; display: flex; align-items: center;
  background: url('/assets/images/backpic/back-1.png') center/cover no-repeat, var(--bg-dark);
  padding: 120px 0 80px;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(120deg, rgba(20,33,29,0.92) 0%, rgba(20,33,29,0.75) 50%, rgba(20,33,29,0.4) 100%);
}
.hero::after {
  content: ""; position: absolute; bottom: -1px; left: 0; right: 0; height: 120px;
  background: linear-gradient(to top, var(--bg) 0%, transparent 100%);
}
.hero-content { position: relative; z-index: 2; max-width: 760px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(201,153,91,0.15); border: 1px solid rgba(201,153,91,0.3);
  color: var(--accent-light); font-size: 13px; font-weight: 600; letter-spacing: 1px;
  padding: 8px 20px; border-radius: 100px; margin-bottom: 28px;
}
.hero-title {
  font-family: var(--font-display); font-size: 56px; line-height: 1.2;
  color: var(--white); font-weight: 800; margin-bottom: 20px;
}
.hero-title span { color: var(--accent); }
.hero-subtitle { font-size: 18px; color: rgba(255,255,255,0.8); line-height: 1.8; margin-bottom: 36px; max-width: 560px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 56px; }
.hero-metrics { display: flex; gap: 40px; flex-wrap: wrap; }
.metric-item { display: flex; flex-direction: column; }
.metric-item strong { font-family: var(--font-display); font-size: 32px; color: var(--white); line-height: 1.2; }
.metric-item strong em { font-style: normal; color: var(--accent); }
.metric-item span { font-size: 13px; color: rgba(255,255,255,0.6); margin-top: 4px; letter-spacing: 1px; }

.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.feature-card {
  background: var(--bg-card); border-radius: var(--radius-lg); padding: 36px 32px;
  box-shadow: var(--shadow); border: 1px solid rgba(255,255,255,0.6);
  transition: all var(--transition); position: relative; overflow: hidden;
}
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.feature-card::after {
  content: ""; position: absolute; top: 0; left: 0; width: 100%; height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0; transition: opacity var(--transition);
}
.feature-card:hover::after { opacity: 1; }
.feature-icon {
  width: 56px; height: 56px; border-radius: 14px;
  background: linear-gradient(135deg, rgba(31,78,69,0.1), rgba(201,153,91,0.1));
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; color: var(--primary); margin-bottom: 22px;
}
.feature-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 12px; color: var(--text); }
.feature-card p { font-size: 15px; color: var(--text-light); line-height: 1.7; }

.category-section { background: var(--bg-alt); }
.category-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.category-card {
  background: var(--white); border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow); border: 1px solid var(--border);
  transition: all var(--transition); text-decoration: none; display: block;
}
.category-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.category-card .cat-img { height: 180px; overflow: hidden; position: relative; }
.category-card .cat-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.category-card:hover .cat-img img { transform: scale(1.06); }
.category-card .cat-img::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(31,78,69,0.3) 0%, transparent 100%);
}
.category-card .cat-body { padding: 28px; }
.category-card .cat-body h3 { font-size: 20px; font-weight: 700; margin-bottom: 8px; color: var(--text); }
.category-card .cat-body p { font-size: 14px; color: var(--text-light); margin-bottom: 16px; line-height: 1.6; }
.category-card .cat-more {
  font-size: 14px; font-weight: 600; color: var(--accent-dark);
  display: inline-flex; align-items: center; gap: 6px;
}
.category-card:hover .cat-more { gap: 12px; }
.category-card .cat-tag {
  position: absolute; top: 16px; left: 16px; z-index: 2;
  background: rgba(20,33,29,0.7); color: var(--white); font-size: 12px; font-weight: 600;
  padding: 6px 16px; border-radius: 100px; backdrop-filter: blur(4px);
}

.news-section { position: relative; }
.news-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.news-card {
  background: var(--bg-card); border-radius: var(--radius); padding: 28px;
  box-shadow: var(--shadow-sm); border: 1px solid var(--border);
  transition: all var(--transition); display: flex; flex-direction: column;
}
.news-card:hover { box-shadow: var(--shadow); transform: translateY(-3px); border-color: var(--border-dark); }
.news-meta { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; flex-wrap: wrap; }
.news-date { font-size: 13px; color: var(--text-lighter); display: flex; align-items: center; gap: 6px; }
.news-title { font-size: 18px; font-weight: 700; line-height: 1.5; margin-bottom: 10px; }
.news-title a { color: var(--text); text-decoration: none; }
.news-title a:hover { color: var(--primary); }
.news-summary { font-size: 14px; color: var(--text-light); line-height: 1.7; flex: 1; margin-bottom: 16px; }
.read-more { font-size: 14px; font-weight: 600; color: var(--primary); display: inline-flex; align-items: center; gap: 6px; }
.read-more:hover { gap: 12px; color: var(--accent-dark); }
.empty-state {
  grid-column: 1 / -1; text-align: center; padding: 60px 20px;
  background: var(--bg-card); border-radius: var(--radius); border: 2px dashed var(--border);
}
.empty-state p { font-size: 16px; color: var(--text-lighter); }

.stats-section { background: var(--bg-dark); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 40px; text-align: center; }
.stat-item { padding: 20px; }
.stat-number {
  font-family: var(--font-display); font-size: 48px; font-weight: 800;
  color: var(--accent); line-height: 1.1; margin-bottom: 8px;
}
.stat-label { font-size: 14px; color: rgba(255,255,255,0.65); letter-spacing: 1px; }

.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; }
.process-step { position: relative; padding: 32px 24px; text-align: center; }
.process-step::after {
  content: ""; position: absolute; top: 50%; right: -16px; width: 32px; height: 2px;
  background: var(--border); display: none;
}
.process-step:last-child::after { display: none; }
.process-num {
  font-family: var(--font-display); font-size: 52px; font-weight: 800;
  color: rgba(31,78,69,0.15); line-height: 1; margin-bottom: 16px;
}
.process-step h4 { font-size: 18px; font-weight: 700; margin-bottom: 8px; color: var(--text); }
.process-step p { font-size: 14px; color: var(--text-light); }

.showcase-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.showcase-card {
  border-radius: var(--radius-lg); overflow: hidden; background: var(--bg-card);
  box-shadow: var(--shadow); border: 1px solid var(--border); position: relative;
}
.showcase-card .showcase-img { width: 100%; height: 220px; object-fit: cover; }
.showcase-card .showcase-body { padding: 28px; }
.showcase-card .showcase-tag { display: inline-block; padding: 4px 14px; border-radius: 100px; font-size: 12px; font-weight: 700; background: rgba(31,78,69,0.08); color: var(--primary); margin-bottom: 12px; }
.showcase-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; color: var(--text); }
.showcase-card p { font-size: 14px; color: var(--text-light); line-height: 1.7; }

.faq-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.faq-item {
  background: var(--bg-card); border-radius: var(--radius); padding: 28px 30px;
  box-shadow: var(--shadow-sm); border: 1px solid var(--border);
  transition: all var(--transition);
}
.faq-item:hover { box-shadow: var(--shadow); border-color: var(--border-dark); }
.faq-item h3 { font-size: 17px; font-weight: 700; margin-bottom: 12px; color: var(--text); display: flex; align-items: flex-start; gap: 10px; }
.faq-item h3 i { color: var(--accent); font-size: 16px; margin-top: 3px; }
.faq-item p { font-size: 14px; color: var(--text-light); line-height: 1.75; padding-left: 26px; }

.cta-section { position: relative; padding: 100px 0; background: linear-gradient(135deg, var(--primary-dark), var(--primary) 60%); }
.cta-section::before {
  content: ""; position: absolute; inset: 0;
  background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  opacity: 0.15; mix-blend-mode: overlay;
}
.cta-inner { position: relative; text-align: center; max-width: 720px; margin: 0 auto; }
.cta-inner h2 { font-family: var(--font-display); font-size: 36px; color: var(--white); margin-bottom: 14px; }
.cta-inner p { font-size: 16px; color: rgba(255,255,255,0.8); margin-bottom: 36px; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

.site-footer {
  background: #0F1A16; color: rgba(255,255,255,0.7); padding: 64px 0 32px;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; margin-bottom: 48px; }
.footer-brand .brand-name { font-size: 22px; }
.footer-brand p { font-size: 14px; margin-top: 16px; line-height: 1.8; max-width: 360px; }
.footer-col h4 { font-size: 15px; color: var(--white); font-weight: 700; margin-bottom: 20px; letter-spacing: 1px; }
.footer-col a {
  display: block; padding: 6px 0; font-size: 14px; color: rgba(255,255,255,0.6);
  text-decoration: none; transition: all var(--transition);
}
.footer-col a:hover { color: var(--accent); padding-left: 6px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08); padding-top: 24px;
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px;
}
.footer-bottom p { font-size: 13px; color: rgba(255,255,255,0.45); }
.footer-bottom .tech-links a { font-size: 13px; color: rgba(255,255,255,0.45); margin-left: 20px; }

@media (max-width: 1024px) {
  .features-grid, .category-grid, .showcase-grid { grid-template-columns: repeat(2, 1fr); }
  .process-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .process-step:nth-child(2)::after { display: none; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .main-nav { display: none; }
  .menu-toggle { display: flex; }
  .search-box { display: none; }
}
@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .hero { min-height: auto; padding: 100px 0 64px; }
  .hero-title { font-size: 36px; }
  .hero-subtitle { font-size: 16px; }
  .hero-metrics { gap: 24px; }
  .features-grid, .category-grid, .news-grid, .faq-grid, .showcase-grid { grid-template-columns: 1fr; }
  .section-head h2 { font-size: 28px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .brand-name { font-size: 17px; }
}
@media (max-width: 520px) {
  .container { padding: 0 18px; }
  .hero-title { font-size: 30px; }
  .hero-metrics { gap: 16px; flex-direction: column; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stats-number { font-size: 36px; }
  .process-grid { grid-template-columns: 1fr; }
  .btn-lg { padding: 14px 28px; font-size: 15px; }
  .brand-icon { width: 34px; height: 34px; font-size: 15px; }
}

/* roulang page: category1 */
:root{
  --primary:#6366f1;
  --primary-dark:#4f46e5;
  --primary-light:#eef2ff;
  --accent:#f59e0b;
  --bg:#f8fafc;
  --bg-dark:#0f172a;
  --bg-dark-2:#1e293b;
  --text:#1e293b;
  --text-weak:#64748b;
  --text-light:#94a3b8;
  --border:#e2e8f0;
  --border-light:#f1f5f9;
  --card-bg:#ffffff;
  --radius:16px;
  --radius-sm:10px;
  --shadow-sm:0 1px 3px rgba(0,0,0,0.06);
  --shadow-md:0 4px 20px rgba(0,0,0,0.06);
  --shadow-lg:0 12px 32px rgba(0,0,0,0.08);
  --font-xs:0.75rem;
  --font-sm:0.875rem;
  --font-md:1rem;
  --font-lg:1.125rem;
  --font-xl:1.5rem;
  --font-2xl:2rem;
  --font-3xl:2.75rem;
  --space-sm:0.75rem;
  --space-md:1.5rem;
  --space-lg:3rem;
  --space-xl:5rem;
  --color-bg-soft: #f5f3ef;
  --color-border: #d6cfc2;
  --color-card: #fdfcfa;
  --color-ink: #2c2a26;
  --color-muted: #8b8377;
  --color-accent: #b4532a;
  --color-accent-dark: #8b3a1e;
  --font-body: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:'Inter','Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{text-decoration:none;color:inherit;transition:color .2s ease, opacity .2s ease;}
button{font-family:inherit;cursor:pointer;border:none;background:none;}
input,select,textarea{font-family:inherit;}

.container{max-width:1200px;margin:0 auto;padding:0 24px;}

/* Header & Nav */
.site-header{
  background:rgba(255,255,255,0.9);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  border-bottom:1px solid rgba(226,232,240,0.6);
  position:sticky;
  top:0;
  z-index:100;
  height:74px;
  display:flex;
  align-items:center;
}
.site-header .container{
  display:flex;
  align-items:center;
  gap:24px;
  width:100%;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-icon{
  width:38px;height:38px;
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);
  border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:17px;
  box-shadow:0 4px 12px rgba(99,102,241,0.35);
}
.brand-name{
  font-size:1.15rem;
  font-weight:800;
  letter-spacing:-0.02em;
  color:var(--text);
}
.brand-name span{color:var(--primary);}
.main-nav{
  display:flex;
  align-items:center;
  gap:6px;
  flex:1;
  margin-left:8px;
}
.main-nav a{
  padding:8px 16px;
  font-size:0.95rem;
  font-weight:500;
  color:var(--text-weak);
  border-radius:8px;
  transition:all .25s ease;
  line-height:1.4;
}
.main-nav a:hover{color:var(--text);background:var(--primary-light);}
.main-nav a.active{color:var(--primary);background:var(--primary-light);font-weight:600;}
.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  margin-left:auto;
  flex-shrink:0;
}
.search-box{
  display:flex;
  align-items:center;
  background:var(--bg);
  border:1px solid var(--border);
  border-radius:10px;
  padding:6px 6px 6px 14px;
  gap:8px;
  transition:all .25s ease;
  width:220px;
}
.search-box:hover,.search-box:focus-within{
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(99,102,241,0.12);
  background:#fff;
}
.search-box i{color:var(--text-light);font-size:0.85rem;}
.search-box input{
  border:none;outline:none;background:transparent;
  font-size:0.85rem;color:var(--text);width:100%;
}
.search-box input::placeholder{color:var(--text-light);}
.search-box .search-kbd{
  font-size:0.7rem;color:var(--text-light);
  background:var(--border-light);
  border:1px solid var(--border);
  border-radius:6px;
  padding:2px 6px;
  white-space:nowrap;
}
.btn-primary{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);
  color:#fff;
  font-size:0.9rem;
  font-weight:600;
  padding:10px 22px;
  border-radius:10px;
  box-shadow:0 4px 12px rgba(99,102,241,0.3);
  transition:all .25s ease;
  border:none;
  cursor:pointer;
  line-height:1.5;
}
.btn-primary:hover{
  transform:translateY(-2px);
  box-shadow:0 8px 20px rgba(99,102,241,0.4);
  color:#fff;
}
.btn-secondary{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  background:#fff;
  color:var(--text);
  font-size:0.9rem;
  font-weight:600;
  padding:10px 22px;
  border-radius:10px;
  border:1.5px solid var(--border);
  transition:all .25s ease;
  cursor:pointer;
  line-height:1.5;
}
.btn-secondary:hover{
  border-color:var(--primary);
  color:var(--primary);
  background:var(--primary-light);
}
.btn-lg{padding:14px 32px;font-size:1rem;border-radius:12px;}

/* Page Banner */
.page-banner{
  background:var(--bg-dark);
  background-image:linear-gradient(135deg, rgba(15,23,42,0.92) 0%, rgba(15,23,42,0.75) 50%, rgba(79,70,229,0.4) 100%), url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  padding:84px 0 70px;
  position:relative;
  color:#fff;
  overflow:hidden;
}
.page-banner::after{
  content:'';
  position:absolute;
  right:-120px;
  top:-120px;
  width:340px;
  height:340px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(99,102,241,0.3) 0%,transparent 70%);
  pointer-events:none;
}
.page-banner .banner-content{position:relative;z-index:2;max-width:780px;}
.page-banner .banner-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(255,255,255,0.12);
  border:1px solid rgba(255,255,255,0.25);
  padding:6px 14px;
  border-radius:100px;
  font-size:0.8rem;
  font-weight:500;
  letter-spacing:0.04em;
  margin-bottom:20px;
  backdrop-filter:blur(10px);
  color:#e2e8f0;
}
.page-banner h1{
  font-size:var(--font-3xl);
  font-weight:800;
  line-height:1.2;
  margin-bottom:16px;
  letter-spacing:-0.03em;
}
.page-banner h1 span{color:#a5b4fc;}
.page-banner p{
  font-size:1.08rem;
  color:#cbd5e1;
  line-height:1.8;
  margin-bottom:28px;
  max-width:640px;
}
.banner-breadcrumb{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:0.85rem;
  color:#94a3b8;
}
.banner-breadcrumb a{color:#cbd5e1;}
.banner-breadcrumb a:hover{color:#fff;}
.banner-breadcrumb .sep{color:#64748b;}

/* Section layout */
.section-pd{padding:var(--space-xl) 0;}
.section-pd-md{padding:var(--space-lg) 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:40px;
}
.section-head .left{max-width:600px;}
.section-tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:0.78rem;
  font-weight:700;
  letter-spacing:0.08em;
  text-transform:uppercase;
  color:var(--primary);
  background:var(--primary-light);
  padding:5px 14px;
  border-radius:100px;
  margin-bottom:12px;
}
.section-title{
  font-size:var(--font-2xl);
  font-weight:800;
  line-height:1.25;
  letter-spacing:-0.02em;
  color:var(--text);
}
.section-title.sm{font-size:var(--font-xl);}
.section-sub{
  color:var(--text-weak);
  line-height:1.7;
  margin-top:10px;
  font-size:1rem;
}
.section-more{
  font-size:0.9rem;
  font-weight:600;
  color:var(--primary);
  white-space:nowrap;
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:8px 16px;
  border-radius:8px;
  transition:all .25s ease;
  flex-shrink:0;
}
.section-more:hover{background:var(--primary-light);gap:10px;}

/* Grid utilities */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:28px;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.grid-2-1{display:grid;grid-template-columns:2fr 1fr;gap:32px;}

/* Cards */
.card{
  background:var(--card-bg);
  border:1px solid var(--border-light);
  border-radius:var(--radius);
  overflow:hidden;
  transition:all .3s ease;
  box-shadow:var(--shadow-sm);
  height:100%;
  display:flex;flex-direction:column;
}
.card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-md);
  border-color:var(--border);
}
.card-image{position:relative;overflow:hidden;aspect-ratio:16/10;background:var(--bg);}
.card-image img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.card:hover .card-image img{transform:scale(1.05);}
.card-image .badge{
  position:absolute;
  top:16px;left:16px;
  background:rgba(15,23,42,0.8);
  backdrop-filter:blur(8px);
  color:#fff;
  padding:4px 12px;
  border-radius:100px;
  font-size:0.75rem;
  font-weight:600;
  z-index:2;
}
.card-image .badge.accent{background:var(--accent);}
.card-body{padding:24px;display:flex;flex-direction:column;flex:1;}
.card-body .card-date{font-size:0.78rem;color:var(--text-light);margin-bottom:8px;display:flex;align-items:center;gap:6px;}
.card-body h3{
  font-size:1.1rem;
  font-weight:700;
  line-height:1.5;
  margin-bottom:10px;
  letter-spacing:-0.01em;
  transition:color .2s;
}
.card-body h3 a:hover{color:var(--primary);}
.card-body p{
  font-size:0.92rem;
  color:var(--text-weak);
  line-height:1.7;
  margin-bottom:16px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.card-body .card-link{
  margin-top:auto;
  font-size:0.88rem;
  font-weight:600;
  color:var(--primary);
  display:inline-flex;align-items:center;gap:6px;
}
.card-body .card-link:hover{gap:10px;}
.card-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px;}
.card-tags span{
  font-size:0.72rem;
  background:var(--bg);
  border:1px solid var(--border-light);
  padding:3px 10px;
  border-radius:100px;
  color:var(--text-weak);
  font-weight:500;
}

/* Icon feature cards */
.feature-card{
  background:var(--card-bg);
  border:1px solid var(--border-light);
  border-radius:var(--radius);
  padding:32px 28px;
  transition:all .3s ease;
  box-shadow:var(--shadow-sm);
  position:relative;
  height:100%;
  overflow:hidden;
}
.feature-card::before{
  content:'';
  position:absolute;
  top:0;left:0;width:100%;height:3px;
  background:linear-gradient(90deg,var(--primary) 0%,var(--primary) 40%,transparent 100%);
  opacity:0;
  transition:opacity .3s ease;
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--primary-light);}
.feature-card:hover::before{opacity:1;}
.feature-icon{
  width:52px;height:52px;
  border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  font-size:1.4rem;
  background:var(--primary-light);
  color:var(--primary);
  margin-bottom:20px;
  transition:all .3s ease;
}
.feature-card:hover .feature-icon{
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:#fff;
  transform:scale(1.05);
}
.feature-card h3{font-size:1.08rem;font-weight:700;margin-bottom:10px;line-height:1.4;}
.feature-card p{font-size:0.9rem;color:var(--text-weak);line-height:1.7;}

/* Number list / steps */
.steps-wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;margin-top:40px;}
.step-item{
  text-align:left;
  padding:32px 24px;
  background:var(--card-bg);
  border:1px solid var(--border-light);
  border-radius:var(--radius);
  position:relative;
  transition:all .3s ease;
  box-shadow:var(--shadow-sm);
}
.step-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);}
.step-num{
  font-size:2.4rem;
  font-weight:800;
  line-height:1;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
  margin-bottom:16px;
  font-family:'Inter',sans-serif;
}
.step-item h3{font-size:1rem;font-weight:700;margin-bottom:8px;}
.step-item p{font-size:0.88rem;color:var(--text-weak);line-height:1.6;}

/* Statistics band */
.stats-band{
  background:linear-gradient(135deg,var(--bg-dark) 0%,var(--bg-dark-2) 100%);
  border-radius:24px;
  padding:56px 48px;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:32px;
  position:relative;
  overflow:hidden;
}
.stats-band::before{
  content:'';
  position:absolute;
  left:-80px;bottom:-80px;
  width:260px;height:260px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(99,102,241,0.35) 0%,transparent 70%);
}
.stats-band::after{
  content:'';
  position:absolute;
  right:-40px;top:-60px;
  width:200px;height:200px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(245,158,11,0.2) 0%,transparent 70%);
}
.stat-item{text-align:center;position:relative;z-index:2;}
.stat-number{
  font-size:2.6rem;
  font-weight:800;
  color:#fff;
  line-height:1.2;
  font-family:'Inter',sans-serif;
  letter-spacing:-0.03em;
}
.stat-number span{color:#a5b4fc;}
.stat-label{color:#94a3b8;font-size:0.9rem;margin-top:8px;font-weight:500;}

/* Comparison table */
.compare-table{
  width:100%;
  border-collapse:collapse;
  background:var(--card-bg);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  border:1px solid var(--border-light);
}
.compare-table th,.compare-table td{
  padding:16px 20px;
  text-align:left;
  border-bottom:1px solid var(--border-light);
  font-size:0.92rem;
  vertical-align:middle;
}
.compare-table th{
  background:var(--bg-dark);
  color:#fff;
  font-weight:600;
  font-size:0.88rem;
  letter-spacing:0.03em;
}
.compare-table tr:last-child td{border-bottom:none;}
.compare-table tr:hover td{background:#fafbfc;}
.compare-table .table-badge{
  display:inline-flex;
  padding:4px 12px;
  border-radius:100px;
  font-size:0.75rem;
  font-weight:600;
  align-items:center;
  gap:4px;
}
.compare-table .badge-yes{background:#dcfce7;color:#16a34a;}
.compare-table .badge-warn{background:#fef3c7;color:#b45309;}

/* Timeline */
.timeline{position:relative;padding-left:32px;max-width:760px;}
.timeline::before{
  content:'';
  position:absolute;
  left:8px;top:0;bottom:0;
  width:2px;
  background:linear-gradient(to bottom,var(--primary) 0%,var(--border) 100%);
}
.timeline-item{
  position:relative;
  padding-bottom:36px;
}
.timeline-item::before{
  content:'';
  position:absolute;
  left:-31px;top:4px;
  width:16px;height:16px;
  border-radius:50%;
  background:#fff;
  border:3px solid var(--primary);
  box-shadow:0 0 0 4px rgba(99,102,241,0.15);
}
.timeline-item .timeline-date{
  font-size:0.78rem;
  color:var(--primary);
  font-weight:700;
  margin-bottom:6px;
  letter-spacing:0.05em;
}
.timeline-item h3{font-size:1.1rem;font-weight:700;margin-bottom:6px;}
.timeline-item p{font-size:0.92rem;color:var(--text-weak);line-height:1.7;}

/* FAQ */
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.faq-item{
  background:var(--card-bg);
  border:1px solid var(--border-light);
  border-radius:var(--radius-sm);
  overflow:hidden;
  transition:all .3s ease;
}
.faq-item:hover{border-color:var(--primary-light);box-shadow:var(--shadow-sm);}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 22px;
  cursor:pointer;
  font-weight:600;
  font-size:0.97rem;
  color:var(--text);
  list-style:none;
  transition:background .2s;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{background:var(--primary-light);}
.faq-item summary .faq-icon{
  width:30px;height:30px;
  border-radius:50%;
  background:var(--primary-light);
  color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:0.8rem;
  flex-shrink:0;
  transition:all .3s ease;
}
.faq-item details[open] summary .faq-icon{
  transform:rotate(180deg);
  background:var(--primary);
  color:#fff;
}
.faq-answer{padding:0 22px 20px;color:var(--text-weak);font-size:0.9rem;line-height:1.75;}
.faq-answer p{margin-bottom:8px;}
.faq-answer p:last-child{margin-bottom:0;}
.faq-answer ul,.faq-answer ol{padding-left:20px;margin-bottom:8px;}

/* CTA Section */
.cta-section{
  background:linear-gradient(135deg,var(--bg-dark) 0%,var(--bg-dark-2) 100%);
  border-radius:28px;
  padding:72px 56px;
  text-align:center;
  position:relative;
  overflow:hidden;
}
.cta-section::before{
  content:'';
  position:absolute;
  top:-80px;left:50%;
  transform:translateX(-50%);
  width:500px;height:200px;
  background:radial-gradient(ellipse,rgba(99,102,241,0.25) 0%,transparent 70%);
  pointer-events:none;
}
.cta-section h2{
  font-size:var(--font-2xl);
  color:#fff;
  font-weight:800;
  margin-bottom:16px;
  position:relative;
}
.cta-section p{
  color:#94a3b8;
  font-size:1.02rem;
  max-width:600px;
  margin:0 auto 32px;
  line-height:1.8;
  position:relative;
}
.cta-actions{
  display:flex;
  justify-content:center;
  gap:16px;
  flex-wrap:wrap;
  position:relative;
}
.cta-section .btn-primary{color:#fff !important;background:linear-gradient(135deg,var(--primary),var(--primary-dark));}
.cta-section .btn-secondary{background:rgba(255,255,255,0.1);border-color:rgba(255,255,255,0.2);color:#e2e8f0;}
.cta-section .btn-secondary:hover{background:rgba(255,255,255,0.15);border-color:rgba(255,255,255,0.4);color:#fff;}

/* Info content */
.info-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.info-media{position:relative;border-radius:24px;overflow:hidden;box-shadow:var(--shadow-lg);}
.info-media img{width:100%;height:100%;object-fit:cover;min-height:380px;}
.info-media::after{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,transparent 55%,rgba(15,23,42,0.35) 100%);
  pointer-events:none;
}
.info-badge{
  position:absolute;
  bottom:20px;left:20px;
  z-index:2;
  background:rgba(255,255,255,0.12);
  backdrop-filter:blur(12px);
  border:1px solid rgba(255,255,255,0.2);
  padding:12px 20px;
  border-radius:12px;
  font-size:0.85rem;
  color:#fff;
  display:flex;align-items:center;gap:10px;
}
.info-badge i{color:var(--accent);}
.info-content h2{
  font-size:var(--font-2xl);
  font-weight:800;
  letter-spacing:-0.02em;
  line-height:1.3;
  margin-bottom:16px;
}
.info-content p{color:var(--text-weak);line-height:1.8;margin-bottom:16px;}
.check-list{list-style:none;margin-top:20px;display:flex;flex-direction:column;gap:12px;}
.check-list li{
  display:flex;
  align-items:flex-start;
  gap:12px;
  font-size:0.95rem;
  color:var(--text);
  font-weight:500;
}
.check-list li i{
  color:var(--primary);
  font-size:1rem;
  margin-top:4px;
  flex-shrink:0;
}

/* Detail / article section */
.detail-layout{display:grid;grid-template-columns:1fr 320px;gap:40px;align-items:start;}
.detail-content{background:#fff;border:1px solid var(--border-light);border-radius:var(--radius);padding:40px;box-shadow:var(--shadow-sm);}
.detail-content h2{
  font-size:1.45rem;
  font-weight:800;
  margin:32px 0 16px;
  letter-spacing:-0.01em;
  position:relative;
  padding-left:16px;
}
.detail-content h2::before{
  content:'';
  position:absolute;
  left:0;top:6px;bottom:6px;
  width:4px;
  border-radius:4px;
  background:linear-gradient(180deg,var(--primary),var(--accent));
}
.detail-content h3{
  font-size:1.15rem;
  font-weight:700;
  margin:24px 0 12px;
}
.detail-content p{color:var(--text-weak);line-height:1.85;margin-bottom:16px;}
.detail-content ul,.detail-content ol{padding-left:22px;margin-bottom:16px;color:var(--text-weak);line-height:1.8;}
.detail-content li{margin-bottom:6px;}
.detail-note{
  background:var(--primary-light);
  border:1px solid #e0e7ff;
  border-radius:var(--radius-sm);
  padding:18px 22px;
  margin:24px 0;
  display:flex;
  gap:14px;
  align-items:flex-start;
}
.detail-note i{color:var(--primary);margin-top:2px;}
.detail-note p{color:var(--text);font-size:0.92rem;margin:0;line-height:1.7;}

/* Sidebar */
.sidebar{position:sticky;top:96px;display:flex;flex-direction:column;gap:24px;}
.sidebar-card{
  background:#fff;
  border:1px solid var(--border-light);
  border-radius:var(--radius);
  padding:28px;
  box-shadow:var(--shadow-sm);
}
.sidebar-card h4{
  font-size:1rem;
  font-weight:800;
  margin-bottom:18px;
  display:flex;
  align-items:center;
  gap:10px;
  padding-bottom:14px;
  border-bottom:1px solid var(--border-light);
}
.sidebar-card h4 i{color:var(--primary);}
.sidebar-list{display:flex;flex-direction:column;gap:0;}
.sidebar-list a{
  padding:10px 0;
  font-size:0.9rem;
  color:var(--text-weak);
  border-bottom:1px dashed var(--border-light);
  transition:all .2s;
  display:flex;
  align-items:center;
  gap:8px;
}
.sidebar-list a:last-child{border-bottom:none;}
.sidebar-list a:hover{color:var(--primary);padding-left:4px;}
.sidebar-list a i{font-size:0.7rem;color:var(--primary);}
.sidebar-quote{
  background:linear-gradient(135deg,var(--bg-dark) 0%,var(--bg-dark-2) 100%);
  border:none;
  color:#fff;
}
.sidebar-quote p{color:#cbd5e1;font-size:0.88rem;line-height:1.7;margin-bottom:12px;}
.sidebar-quote .quote-meta{font-size:0.75rem;color:#64748b;display:flex;align-items:center;gap:6px;}

/* Pagination */
.pagination{
  display:flex;
  justify-content:center;
  gap:8px;
  margin-top:48px;
}
.pagination a,.pagination .page-current{
  min-width:42px;
  height:42px;
  display:flex;
  align-items:center;
  justify-content:center;
  border:1px solid var(--border);
  border-radius:10px;
  background:#fff;
  color:var(--text-weak);
  font-size:0.9rem;
  font-weight:500;
  transition:all .25s ease;
}
.pagination a:hover{
  border-color:var(--primary);
  color:var(--primary);
  background:var(--primary-light);
}
.pagination .page-current{
  background:var(--primary);
  border-color:var(--primary);
  color:#fff;
  font-weight:600;
}

/* Footer */
.site-footer{
  background:var(--bg-dark);
  padding:64px 0 0;
  margin-top:80px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr;
  gap:48px;
  padding-bottom:40px;
  border-bottom:1px solid rgba(148,163,184,0.12);
}
.footer-brand p{
  color:#94a3b8;
  font-size:0.9rem;
  line-height:1.8;
  margin-top:16px;
  max-width:360px;
}
.footer-brand .brand-name{color:#f8fafc;font-size:1.2rem;}
.footer-brand .brand-name span{color:#a5b4fc;}
.footer-col h4{
  color:#f1f5f9;
  font-size:0.85rem;
  font-weight:700;
  letter-spacing:0.08em;
  text-transform:uppercase;
  margin-bottom:20px;
}
.footer-col a{
  display:block;
  color:#94a3b8;
  font-size:0.9rem;
  padding:6px 0;
  transition:all .2s ease;
}
.footer-col a:hover{color:#c7d2fe;padding-left:4px;}
.footer-bottom{
  padding:24px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
}
.footer-bottom p{color:#64748b;font-size:0.82rem;margin:0;}
.tech-links{display:flex;gap:24px;}
.tech-links a{color:#64748b;font-size:0.82rem;transition:color .2s;}
.tech-links a:hover{color:#cbd5e1;}

/* Responsive */
@media screen and (max-width: 1024px){
  .main-nav{display:none;}
  .site-header .container{flex-wrap:wrap;}
  .header-actions{width:100%;justify-content:flex-end;}
  .grid-4{grid-template-columns:repeat(2,1fr);}
  .steps-wrap{grid-template-columns:repeat(2,1fr);}
  .stats-band{grid-template-columns:repeat(2,1fr);}
  .detail-layout{grid-template-columns:1fr;}
  .sidebar{position:static;}
  .info-grid{grid-template-columns:1fr;gap:32px;}
  .faq-grid{grid-template-columns:1fr;}
}

@media screen and (max-width: 768px){
  .page-banner h1{font-size:2rem;}
  .section-pd{padding:var(--space-lg) 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .grid-2,.grid-3{grid-template-columns:1fr;}
  .steps-wrap{grid-template-columns:1fr;}
  .stats-band{grid-template-columns:1fr;padding:40px 28px;}
  .cta-section{padding:48px 28px;}
  .cta-actions{flex-direction:column;align-items:center;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .compare-table{display:block;overflow-x:auto;}
  .detail-content{padding:28px 22px;}
  .timeline{padding-left:20px;}
  .timeline-item::before{left:-35px;}
  .site-header{height:auto;padding:12px 0;}
  .header-actions{justify-content:flex-start;}
  .search-box{flex:1;max-width:300px;}
  .site-header .container{flex-direction:column;align-items:flex-start;gap:10px;}
}

@media screen and (max-width: 520px){
  .grid-4{grid-template-columns:1fr;}
  .page-banner{padding:64px 0 48px;}
  .page-banner h1{font-size:1.7rem;}
  .brand-name{font-size:1rem;}
  .btn-primary{padding:9px 16px;font-size:0.85rem;}
  .btn-secondary{padding:9px 16px;font-size:0.85rem;}
  .card-body{padding:18px;}
  .step-item{padding:24px 18px;}
  .stat-number{font-size:2rem;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* Mobile menu */
.mobile-menu-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:42px;height:42px;
  border-radius:10px;
  border:1px solid var(--border);
  background:#fff;
  font-size:1.1rem;
  color:var(--text);
  cursor:pointer;
}
@media (max-width: 1024px){
  .mobile-menu-toggle{display:flex;}
  .mobile-nav{
    display:none;
    width:100%;
    flex-direction:column;
    padding:12px;
    background:#fff;
    border:1px solid var(--border-light);
    border-radius:16px;
    margin-top:8px;
    box-shadow:var(--shadow-md);
  }
  .mobile-nav.open{display:flex;}
  .mobile-nav a{
    padding:12px 16px;
    font-size:0.9rem;
    font-weight:500;
    color:var(--text-weak);
    border-radius:8px;
  }
  .mobile-nav a.active{background:var(--primary-light);color:var(--primary);font-weight:600;}
}

/* link card rows */
.row-card{
  display:flex;
  align-items:center;
  gap:20px;
  background:#fff;
  border:1px solid var(--border-light);
  border-radius:var(--radius);
  padding:24px;
  transition:all .25s ease;
  margin-bottom:16px;
  box-shadow:var(--shadow-sm);
}
.row-card:hover{
  border-color:var(--primary-light);
  box-shadow:var(--shadow-md);
  transform:translateX(4px);
}
.row-card .row-icon{
  width:56px;height:56px;
  border-radius:14px;
  background:var(--primary-light);
  color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:1.4rem;
  flex-shrink:0;
  transition:all .25s;
}
.row-card:hover .row-icon{background:var(--primary);color:#fff;}
.row-card .row-content{flex:1;}
.row-card .row-content h3{font-size:1.05rem;font-weight:700;margin-bottom:4px;}
.row-card .row-content p{font-size:0.88rem;color:var(--text-weak);line-height:1.6;}
.row-card .row-arrow{color:var(--text-light);font-size:1rem;transition:all .25s;}
.row-card:hover .row-arrow{color:var(--primary);transform:translateX(4px);}

/* font helper */
.text-muted{color:var(--text-weak) !important;}
.mb-1{margin-bottom:8px;}
.mb-2{margin-bottom:16px;}
.mb-3{margin-bottom:24px;}
.mt-2{margin-top:16px;}
.mt-3{margin-top:24px;}
.mt-4{margin-top:32px;}
.text-center{text-align:center;}

/* Empty state / not found (avoid raw default) */
.notice-box{
  background:#fffbeb;
  border:1px solid #fde68a;
  border-radius:12px;
  padding:16px 20px;
  color:#92400e;
  font-size:0.9rem;
  display:flex;
  align-items:center;
  gap:10px;
}
.notice-box i{color:#f59e0b;}

/* roulang page: article */
:root {
  --bg: #f6f1e6;
  --bg-alt: #ece5d5;
  --bg-deep: #252226;
  --card: #fffbf3;
  --ink: #2b2723;
  --ink-soft: #6f675c;
  --accent: #a85e3a;
  --accent-dark: #87472a;
  --accent-2: #d6a24c;
  --line: #ded2bf;
  --radius: 16px;
  --radius-sm: 9px;
  --shadow: 0 18px 40px rgba(70, 55, 35, .08);
  --shadow-sm: 0 4px 14px rgba(70, 55, 35, .07);
  --font-body: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans CJK SC", sans-serif;
  --font-display: Georgia, "Songti SC", "SimSun", serif;
  --transition: .25s cubic-bezier(.4, 0, .2, 1);
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--transition); }
button { cursor: pointer; font-family: inherit; }
input { font-family: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 1.25rem; }

/* Button System */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  padding: .75rem 1.6rem; border-radius: 999px; font-weight: 600; font-size: .95rem;
  line-height: 1.2; border: 2px solid transparent; transition: all var(--transition);
  text-align: center; white-space: nowrap;
}
.btn-sm { padding: .5rem 1.1rem; font-size: .85rem; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); border-color: var(--accent-dark); transform: translateY(-2px); box-shadow: 0 10px 24px rgba(168, 94, 58, .25); }
.btn-primary:active { transform: translateY(0); box-shadow: none; }
.btn-outline { background: transparent; border-color: rgba(255,255,255,.7); color: #fff; }
.btn-outline:hover { background: rgba(255,255,255,.12); border-color: #fff; transform: translateY(-2px); }
.btn-ghost { background: transparent; border-color: var(--line); color: var(--ink); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); background: rgba(168, 94, 58, .05); }

/* Header / SaaS Command Nav */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(246, 241, 230, .86);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(222, 210, 191, .7);
}
.header-inner { display: flex; align-items: center; gap: 1.25rem; min-height: 68px; }
.brand { display: inline-flex; align-items: center; gap: .6rem; flex-shrink: 0; }
.brand-icon {
  width: 40px; height: 40px; border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 1.1rem; box-shadow: 0 6px 16px rgba(168,94,58,.3);
}
.brand-name { font-family: var(--font-display); font-size: 1.35rem; font-weight: 700; color: var(--ink); letter-spacing: .01em; }
.brand-name span { color: var(--accent); }
.main-nav { display: flex; align-items: center; gap: .35rem; margin: 0 auto; }
.main-nav a {
  padding: .5rem .95rem; border-radius: 999px; font-size: .92rem; font-weight: 500;
  color: var(--ink-soft); transition: all var(--transition); position: relative;
}
.main-nav a:hover { color: var(--ink); background: rgba(168, 94, 58, .08); }
.main-nav a.active { color: var(--accent); background: rgba(168, 94, 58, .1); font-weight: 600; }
.header-actions { display: flex; align-items: center; gap: .75rem; flex-shrink: 0; }
.command-search {
  display: flex; align-items: center; gap: .45rem;
  background: var(--card); border: 1px solid var(--line); border-radius: 999px;
  padding: .42rem .7rem; min-width: 190px; transition: all var(--transition);
}
.command-search:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(168,94,58,.12); }
.command-search i { color: var(--ink-soft); font-size: .85rem; }
.command-search input {
  border: none; background: transparent; outline: none; font-size: .85rem;
  color: var(--ink); width: 100%;
}
.command-search .search-kbd {
  font-size: .72rem; color: var(--ink-soft); background: var(--bg-alt);
  border: 1px solid var(--line); border-radius: 6px; padding: .1rem .35rem; white-space: nowrap;
}
.nav-toggle {
  display: none; background: transparent; border: 1px solid var(--line); border-radius: 10px;
  width: 40px; height: 40px; font-size: 1rem; color: var(--ink); align-items: center; justify-content: center;
}

/* Article Hero */
.article-hero {
  position: relative; color: #fff; padding: 5.5rem 0 4rem;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover; background-position: center;
  border-bottom: 4px solid var(--accent-2);
}
.article-hero::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(120deg, rgba(37,34,38,.92), rgba(37,34,38,.55));
}
.article-hero .container { position: relative; z-index: 2; }
.breadcrumb { display: flex; flex-wrap: wrap; gap: .35rem; font-size: .85rem; margin-bottom: 1.5rem; color: rgba(255,255,255,.7); }
.breadcrumb a { color: rgba(255,255,255,.75); }
.breadcrumb a:hover { color: var(--accent-2); }
.breadcrumb .sep { opacity: .5; }
.hero-tag {
  display: inline-flex; align-items: center; gap: .4rem;
  background: rgba(214,162,76,.18); border: 1px solid rgba(214,162,76,.6);
  color: var(--accent-2); border-radius: 999px; padding: .3rem .95rem;
  font-size: .82rem; font-weight: 600; letter-spacing: .03em; margin-bottom: 1rem;
}
.hero-title {
  font-family: var(--font-display); font-size: clamp(1.7rem, 3.8vw, 2.8rem);
  line-height: 1.28; margin: 0 0 1rem 0; max-width: 820px; font-weight: 700;
}
.hero-desc { max-width: 720px; color: rgba(255,255,255,.8); font-size: 1.02rem; margin-bottom: 1.4rem; line-height: 1.8; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 1.2rem; color: rgba(255,255,255,.78); font-size: .88rem; }
.hero-meta span { display: inline-flex; align-items: center; gap: .4rem; }
.hero-meta i { color: var(--accent-2); }

/* Article Main Layout */
.article-main { padding: 3.5rem 0 4.5rem; background: var(--bg); }
.article-layout { row-gap: 2rem; }
.article-card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow-sm); padding: 2rem 2rem 1.75rem;
}
.article-body { font-size: 1rem; line-height: 1.85; color: #3d3730; word-break: break-word; }
.article-body h2 { font-family: var(--font-display); font-size: 1.5rem; margin: 2rem 0 .9rem; padding-bottom: .5rem; border-bottom: 2px dashed var(--line); color: var(--ink); }
.article-body h3 { font-family: var(--font-display); font-size: 1.2rem; margin: 1.6rem 0 .7rem; color: var(--ink); }
.article-body p { margin: 0 0 1.1rem; }
.article-body ul, .article-body ol { margin: 0 0 1.2rem; padding-left: 1.4rem; }
.article-body ul li, .article-body ol li { margin-bottom: .45rem; }
.article-body ul li::marker { color: var(--accent); }
.article-body blockquote {
  margin: 1.4rem 0; padding: 1rem 1.3rem; border-left: 4px solid var(--accent-2);
  background: rgba(214,162,76,.09); border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--ink-soft); font-style: italic;
}
.article-body img { border-radius: var(--radius); margin: 1.4rem 0; box-shadow: var(--shadow-sm); }
.article-body a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.article-body a:hover { color: var(--accent-dark); }
.article-body table { width: 100%; border-collapse: collapse; margin: 1.2rem 0; }
.article-body table th, .article-body table td { border: 1px solid var(--line); padding: .7rem 1rem; text-align: left; }
.article-body table th { background: var(--bg-alt); font-weight: 600; }
.article-footer-meta {
  display: flex; flex-wrap: wrap; gap: 1.4rem; margin-top: 2rem; padding-top: 1.25rem;
  border-top: 1px dashed var(--line); font-size: .9rem; color: var(--ink-soft);
}
.article-footer-meta span { display: inline-flex; align-items: center; gap: .4rem; }
.article-footer-meta i { color: var(--accent); }

.not-found {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 3.5rem 2rem; text-align: center; box-shadow: var(--shadow-sm);
}
.not-found h2 { font-family: var(--font-display); font-size: 2rem; color: var(--ink); margin: 0 0 .6rem; }
.not-found p { color: var(--ink-soft); margin-bottom: 1.5rem; }

/* Sidebar Cards */
.side-card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow-sm); padding: 1.4rem 1.4rem 1.2rem; margin-bottom: 1.5rem;
}
.side-card:last-child { margin-bottom: 0; }
.side-card-title {
  font-family: var(--font-display); font-size: 1.1rem; color: var(--ink);
  margin: 0 0 1rem; padding-bottom: .6rem; border-bottom: 2px dashed var(--line);
  display: flex; align-items: center; gap: .5rem;
}
.side-card-title i { color: var(--accent); }
.side-list { list-style: none; margin: 0; padding: 0; }
.side-list li { padding: .6rem 0; border-bottom: 1px dashed var(--line); }
.side-list li:last-child { border-bottom: none; }
.side-list a {
  display: flex; gap: .6rem; align-items: flex-start; font-size: .9rem; color: var(--ink-soft); line-height: 1.5;
}
.side-list a:hover { color: var(--accent); }
.side-list i { color: var(--accent-2); font-size: .72rem; margin-top: .3rem; flex-shrink: 0; }
.tag-list { display: flex; flex-wrap: wrap; gap: .5rem; }
.tag-list a {
  display: inline-flex; align-items: center; gap: .35rem;
  background: var(--bg-alt); border: 1px solid var(--line); border-radius: 999px;
  padding: .28rem .8rem; font-size: .8rem; color: var(--ink-soft); transition: all var(--transition);
}
.tag-list a:hover { background: rgba(168,94,58,.08); border-color: var(--accent); color: var(--accent); }
.side-card .command-search { width: 100%; }
.info-list { list-style: none; margin: 0; padding: 0; }
.info-list li { display: flex; gap: .7rem; align-items: flex-start; padding: .45rem 0; font-size: .9rem; color: var(--ink-soft); }
.info-list i { color: var(--accent); min-width: 16px; margin-top: .25rem; }

/* Section / Category Cards */
.section { padding: 4.5rem 0; }
.section-light { background: var(--bg-alt); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-head { text-align: center; margin-bottom: 2.4rem; }
.section-eyebrow {
  display: inline-flex; align-items: center; gap: .4rem; font-size: .82rem; font-weight: 600;
  color: var(--accent); text-transform: uppercase; letter-spacing: .12em; margin-bottom: .5rem;
}
.section-title { font-family: var(--font-display); font-size: clamp(1.5rem, 3vw, 2rem); color: var(--ink); margin: 0 0 .6rem; }
.section-sub { color: var(--ink-soft); max-width: 560px; margin: 0 auto; font-size: .98rem; }
.category-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.category-card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; transition: all var(--transition); box-shadow: var(--shadow-sm);
  display: flex; flex-direction: column;
}
.category-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: rgba(168,94,58,.3); }
.category-card-media { position: relative; height: 180px; overflow: hidden; }
.category-card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .45s ease; }
.category-card:hover .category-card-media img { transform: scale(1.05); }
.category-card-media::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 45%, rgba(37,34,38,.35));
}
.category-card-body { padding: 1.4rem 1.5rem 1.5rem; flex: 1; display: flex; flex-direction: column; }
.category-tag {
  align-self: flex-start; background: rgba(168,94,58,.1); color: var(--accent);
  font-size: .8rem; font-weight: 600; border-radius: 999px; padding: .2rem .8rem; margin-bottom: .7rem;
}
.category-card-body h3 { font-family: var(--font-display); font-size: 1.18rem; margin: 0 0 .45rem; color: var(--ink); }
.category-card-body p { font-size: .9rem; color: var(--ink-soft); line-height: 1.7; margin: 0 0 1rem; flex: 1; }
.card-link { font-weight: 600; color: var(--accent); display: inline-flex; align-items: center; gap: .4rem; font-size: .9rem; }
.card-link i { transition: transform var(--transition); }
.card-link:hover i { transform: translateX(4px); }

/* FAQ */
.faq-wrap { max-width: 820px; margin: 0 auto; }
.faq-row { margin-bottom: .9rem; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-sm); overflow: hidden; transition: border-color var(--transition), box-shadow var(--transition); }
.faq-row:hover { border-color: rgba(168,94,58,.3); }
.faq-row .accordion-title {
  display: flex; align-items: center; gap: .8rem; padding: 1.05rem 1.3rem;
  font-size: .98rem; font-weight: 600; color: var(--ink); background: transparent;
  border-bottom: 1px solid transparent; transition: all var(--transition);
}
.faq-row .accordion-title::before { content: "\f059"; font-family: "Font Awesome 6 Free"; font-weight: 400; color: var(--accent); font-size: 1rem; }
.faq-row .accordion-title:hover { color: var(--accent); }
.faq-row.is-active .accordion-title { border-bottom-color: var(--line); color: var(--accent); }
.faq-row .accordion-content { padding: 1.1rem 1.3rem; font-size: .93rem; color: var(--ink-soft); line-height: 1.7; }
.faq-row .accordion-title::after { content: "\f078"; font-family: "Font Awesome 6 Free"; font-weight: 900; margin-left: auto; font-size: .85rem; color: var(--ink-soft); transition: transform var(--transition); }
.faq-row.is-active .accordion-title::after { transform: rotate(180deg); color: var(--accent); }

/* CTA */
.cta-section { padding: 4.5rem 0; background: var(--bg); }
.cta-box {
  position: relative; background: var(--bg-deep); border-radius: 24px; overflow: hidden;
  padding: 4rem 2rem; text-align: center; color: #fff;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover; background-position: center;
}
.cta-box::before { content: ""; position: absolute; inset: 0; background: rgba(37,34,38,.72); }
.cta-box .container { position: relative; z-index: 2; }
.cta-title { font-family: var(--font-display); font-size: clamp(1.5rem, 3.2vw, 2.3rem); margin: 0 0 .8rem; }
.cta-desc { color: rgba(255,255,255,.8); max-width: 520px; margin: 0 auto 1.8rem; font-size: .98rem; }
.cta-actions { display: flex; justify-content: center; gap: .8rem; flex-wrap: wrap; }

/* Footer */
.site-footer { background: var(--bg-deep); color: rgba(255,255,255,.75); padding: 4rem 0 0; border-top: 4px solid var(--accent); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 2.5rem; padding-bottom: 2.5rem; }
.footer-brand .brand { margin-bottom: 1rem; }
.footer-brand .brand-icon { box-shadow: none; }
.footer-brand .brand-name { color: #fff; }
.footer-brand .brand-name span { color: var(--accent-2); }
.footer-brand p { font-size: .9rem; line-height: 1.8; color: rgba(255,255,255,.65); max-width: 320px; }
.footer-col h4 { color: #fff; font-size: 1rem; margin: 0 0 1rem; font-family: var(--font-display); letter-spacing: .02em; }
.footer-col a { display: block; padding: .3rem 0; font-size: .9rem; color: rgba(255,255,255,.65); transition: all var(--transition); }
.footer-col a:hover { color: var(--accent-2); padding-left: 4px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1); padding: 1.3rem 0;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  font-size: .84rem; color: rgba(255,255,255,.5);
}
.tech-links { display: flex; gap: 1.2rem; }
.tech-links a { color: rgba(255,255,255,.55); transition: color var(--transition); }
.tech-links a:hover { color: #fff; }

/* Focus accessibility */
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 3px solid rgba(168, 94, 58, .4); outline-offset: 2px; border-radius: 4px;
}

/* Responsive */
@media (max-width: 1024px) {
  .container { padding: 0 1.1rem; }
  .command-search { min-width: 140px; }
  .command-search .search-kbd { display: none; }
  .category-grid { gap: 1.15rem; }
  .article-card { padding: 1.5rem 1.25rem; }
}
@media (max-width: 900px) {
  .nav-toggle { display: inline-flex; margin-left: auto; }
  .main-nav, .header-actions { display: none; }
  .site-header.nav-open .main-nav {
    display: flex; flex-direction: column; align-items: flex-start; gap: .2rem;
    position: absolute; top: 100%; left: 0; right: 0;
    background: rgba(246,241,230,.98); backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line); padding: 1rem 1.25rem 1.2rem;
  }
  .site-header.nav-open .main-nav a { width: 100%; border-radius: 10px; padding: .65rem .9rem; }
  .site-header.nav-open .header-actions {
    display: flex; flex-direction: column; align-items: stretch; gap: .6rem;
    position: absolute; top: calc(100% + 148px); left: 0; right: 0;
    background: rgba(246,241,230,.98); backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line); padding: .5rem 1.25rem 1.2rem;
  }
  .site-header.nav-open .header-actions .command-search { min-width: 0; }
  .site-header.nav-open .header-actions .btn { width: 100%; }
  .category-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 1.8rem; padding-bottom: 1.8rem; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .article-hero { padding: 3.6rem 0 3rem; }
}
@media (max-width: 640px) {
  .brand-name { font-size: 1.12rem; }
  .brand-icon { width: 34px; height: 34px; font-size: .95rem; }
  .header-inner { min-height: 60px; }
  .article-card { padding: 1.2rem 1rem; }
  .article-body { font-size: .95rem; }
  .section { padding: 3.2rem 0; }
  .cta-box { padding: 3rem 1.25rem; border-radius: 18px; }
  .hero-title { font-size: 1.55rem; }
  .cta-actions .btn { width: 100%; }
  .footer-bottom { font-size: .78rem; }
  .tech-links { flex-wrap: wrap; justify-content: center; gap: .6rem; }
}

/* roulang page: category2 */
:root{
  --color-primary:#b5653a;
  --color-primary-dark:#8f4527;
  --color-secondary:#3d6b62;
  --color-accent:#d9a441;
  --color-bg:#f6f0e5;
  --color-bg-dark:#2d2a26;
  --color-surface:#fdfaf4;
  --color-text:#37322e;
  --color-text-light:#75695e;
  --color-border:#ddd0bd;
  --color-border-dark:#c9b89f;
  --radius-lg:18px;
  --radius-md:12px;
  --radius-sm:6px;
  --shadow-sm:0 2px 10px rgba(60,50,40,0.06);
  --shadow-md:0 8px 28px rgba(60,50,40,0.1);
  --shadow-lg:0 18px 44px rgba(60,50,40,0.16);
  --font-serif:"Georgia","Times New Roman","STSong",serif;
  --font-sans:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  --transition:all .3s ease;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font-sans);background:var(--color-bg);color:var(--color-text);line-height:1.7;font-size:16px}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:var(--transition)}
button,input,select,textarea{font-family:inherit;font-size:inherit}
h1,h2,h3,h4,h5,h6{margin:0;font-weight:700;line-height:1.25;font-family:var(--font-serif)}
p{margin:0}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:80px 0}
.section--dark{background:var(--color-bg-dark);color:#f2ede4}
.section--tint{background:#efe6d8}
.section-head{margin-bottom:44px}
.section-head.center{text-align:center}
.section-kicker{display:inline-block;font-size:12px;font-weight:700;letter-spacing:3px;text-transform:uppercase;color:var(--color-primary);background:rgba(181,101,58,.1);padding:6px 14px;border-radius:999px;margin-bottom:12px}
.section-head h2{font-size:34px;color:var(--color-text)}
.section--dark .section-head h2{color:#fdfaf4}
.section-head p{color:var(--color-text-light);margin-top:12px;max-width:640px}
.section-head.center p{margin-left:auto;margin-right:auto}
.site-header{position:sticky;top:0;z-index:100;background:rgba(246,240,229,.92);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--color-border);box-shadow:0 2px 12px rgba(60,50,40,.04)}
.header-inner{display:flex;align-items:center;gap:22px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-icon{width:40px;height:40px;border-radius:12px;background:var(--color-primary);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:18px;box-shadow:0 4px 14px rgba(181,101,58,.3)}
.brand-name{font-size:22px;font-weight:800;font-family:var(--font-serif);color:var(--color-text);letter-spacing:.5px}
.brand-name span{color:var(--color-primary)}
.main-nav{display:flex;align-items:center;gap:4px;margin:0 auto}
.main-nav a{color:var(--color-text-light);font-weight:500;padding:8px 16px;border-radius:999px;font-size:15px}
.main-nav a:hover{color:var(--color-primary);background:rgba(181,101,58,.08)}
.main-nav a.active{color:var(--color-primary);background:rgba(181,101,58,.12);font-weight:600}
.header-actions{display:flex;align-items:center;gap:14px;flex-shrink:0}
.command-search{display:flex;align-items:center;gap:8px;background:var(--color-surface);border:1px solid var(--color-border);border-radius:999px;padding:7px 14px;min-width:210px;transition:var(--transition)}
.command-search:hover,.command-search:focus-within{border-color:var(--color-primary);box-shadow:0 0 0 3px rgba(181,101,58,.12)}
.command-search i{color:var(--color-text-light);font-size:13px}
.command-search input{border:none;background:transparent;outline:none;width:100%;font-size:14px;color:var(--color-text)}
.command-search .search-key{font-size:11px;border:1px solid var(--color-border);border-radius:6px;padding:2px 6px;color:var(--color-text-light);white-space:nowrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 28px;border-radius:999px;font-weight:600;font-size:15px;border:2px solid transparent;cursor:pointer;transition:var(--transition);text-decoration:none;line-height:1.4}
.btn-primary{background:var(--color-primary);color:#fff;border-color:var(--color-primary)}
.btn-primary:hover{background:var(--color-primary-dark);border-color:var(--color-primary-dark);transform:translateY(-2px);box-shadow:0 10px 24px rgba(181,101,58,.25)}
.btn-outline{background:transparent;color:var(--color-primary);border-color:var(--color-primary)}
.btn-outline:hover{background:var(--color-primary);color:#fff;transform:translateY(-2px)}
.btn-light{background:#fdfaf4;color:var(--color-primary);border-color:#fdfaf4}
.btn-light:hover{background:#fff;transform:translateY(-2px);box-shadow:0 10px 24px rgba(0,0,0,.15)}
.btn-small{padding:8px 18px;font-size:14px}
.nav-toggle{display:none;background:none;border:2px solid var(--color-border);border-radius:10px;width:42px;height:42px;align-items:center;justify-content:center;font-size:18px;color:var(--color-text);cursor:pointer}
.page-banner{position:relative;padding:90px 0 76px;background-size:cover;background-position:center}
.banner-overlay{position:absolute;inset:0;background:linear-gradient(130deg,rgba(45,42,38,.9),rgba(90,60,38,.72));z-index:1}
.banner-content{position:relative;z-index:2;color:#fff;max-width:760px}
.banner-tag{display:inline-block;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.3);padding:6px 16px;border-radius:999px;font-size:13px;letter-spacing:2px;margin-bottom:18px}
.page-banner h1{font-size:52px;color:#fff;margin-bottom:16px}
.page-banner p{font-size:17px;color:rgba(255,255,255,.85);line-height:1.8;margin-bottom:22px;max-width:620px}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.75);flex-wrap:wrap}
.breadcrumb a:hover{color:#fff}
.breadcrumb i{font-size:10px;opacity:.7}
.guide-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);overflow:hidden;transition:var(--transition);height:100%;box-shadow:var(--shadow-sm);display:flex;flex-direction:column}
.guide-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:var(--color-border-dark)}
.guide-card__media{position:relative;height:190px;overflow:hidden}
.guide-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.guide-card:hover .guide-card__media img{transform:scale(1.06)}
.guide-card__media::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(45,42,38,.25),transparent 60%)}
.card-badge{position:absolute;top:14px;left:14px;z-index:2;background:var(--color-surface);color:var(--color-primary);font-size:12px;font-weight:700;padding:5px 12px;border-radius:999px;box-shadow:var(--shadow-sm)}
.guide-card__body{padding:26px 24px 24px;display:flex;flex-direction:column;flex:1}
.guide-card__body h3{font-size:21px;margin-bottom:10px;color:var(--color-text)}
.guide-card__body p{color:var(--color-text-light);font-size:14px;line-height:1.7;flex:1}
.text-link{display:inline-flex;align-items:center;gap:6px;margin-top:18px;color:var(--color-primary);font-weight:600;font-size:14px}
.text-link i{transition:transform .3s}
.text-link:hover{color:var(--color-primary-dark)}
.text-link:hover i{transform:translateX(4px)}
.section--rank{position:relative;overflow:hidden}
.section--rank::before{content:"";position:absolute;top:0;right:0;width:280px;height:280px;background:radial-gradient(circle,rgba(217,164,65,.18),transparent 70%);pointer-events:none}
.section--rank .section-head h2,.section--rank .section-head p{color:#fdfaf4}
.rank-list{display:flex;flex-direction:column;gap:16px}
.rank-item{display:flex;align-items:center;gap:22px;background:rgba(253,250,244,.04);border:1px solid rgba(253,250,244,.1);border-radius:var(--radius-lg);padding:22px 26px;transition:var(--transition)}
.rank-item:hover{background:rgba(253,250,244,.08);border-color:rgba(217,164,65,.4);transform:translateX(6px)}
.rank-num{font-family:var(--font-serif);font-size:42px;font-style:italic;color:var(--color-accent);min-width:64px;text-align:center;line-height:1}
.rank-info{flex:1}
.rank-info h3{font-size:18px;color:#fdfaf4;margin-bottom:4px}
.rank-info p{color:rgba(253,250,244,.6);font-size:14px;line-height:1.6}
.rank-tags{display:flex;align-items:center;flex-wrap:wrap;gap:8px}
.tag{display:inline-block;font-size:12px;font-weight:600;padding:4px 12px;border-radius:999px;border:1px solid rgba(253,250,244,.25);color:rgba(253,250,244,.75)}
.tag--accent{border-color:rgba(217,164,65,.5);color:var(--color-accent)}
.rank-meta{font-size:13px;color:rgba(253,250,244,.5);white-space:nowrap}
.strategy-media{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg)}
.strategy-media img{width:100%;height:420px;object-fit:cover}
.media-stamp{position:absolute;right:20px;bottom:20px;width:90px;height:90px;border:2px dashed rgba(255,255,255,.7);border-radius:50%;display:flex;align-items:center;justify-content:center;font-family:var(--font-serif);font-size:16px;font-weight:700;color:#fff;background:rgba(45,42,38,.35);backdrop-filter:blur(4px);transform:rotate(-8deg)}
.strategy-content{padding:12px 20px}
.strategy-content h2{font-size:32px;margin:8px 0 16px}
.strategy-content p{color:var(--color-text-light);margin-bottom:24px;font-size:15px;line-height:1.8}
.check-list{list-style:none;padding:0;margin:0 0 28px}
.check-list li{position:relative;padding-left:32px;margin-bottom:14px;font-size:15px;color:var(--color-text)}
.check-list li::before{content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;position:absolute;left:0;top:2px;width:22px;height:22px;background:rgba(61,107,98,.12);color:var(--color-secondary);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:11px}
.timeline{position:relative;max-width:760px;margin:0 auto;padding:20px 0}
.timeline::before{content:"";position:absolute;left:50%;top:0;bottom:0;width:2px;background:linear-gradient(to bottom,transparent,var(--color-primary),transparent);transform:translateX(-50%)}
.timeline-item{position:relative;display:flex;align-items:center;margin-bottom:28px}
.timeline-item:nth-child(odd){flex-direction:row}
.timeline-item:nth-child(even){flex-direction:row-reverse}
.timeline-dot{width:20px;height:20px;background:var(--color-primary);border:4px solid var(--color-bg);border-radius:50%;box-shadow:0 0 0 3px rgba(181,101,58,.3);flex-shrink:0;position:relative;z-index:2;margin:0 -10px}
.timeline-card{width:calc(50% - 40px);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:24px 26px;box-shadow:var(--shadow-sm);transition:var(--transition)}
.timeline-card:hover{box-shadow:var(--shadow-md);transform:translateY(-3px)}
.timeline-step{display:inline-block;font-size:12px;font-weight:800;letter-spacing:2px;color:var(--color-primary);background:rgba(181,101,58,.1);padding:4px 12px;border-radius:999px;margin-bottom:10px}
.timeline-card h3{font-size:19px;margin-bottom:8px}
.timeline-card p{font-size:14px;color:var(--color-text-light);line-height:1.7}
.faq-wrap{max-width:820px;margin:0 auto}
.accordion{list-style:none;margin:0;padding:0}
.accordion-item{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);margin-bottom:14px;overflow:hidden;transition:var(--transition)}
.accordion-item:hover{border-color:var(--color-border-dark)}
.accordion-title{display:flex;align-items:center;gap:14px;padding:18px 22px;font-weight:600;font-size:16px;color:var(--color-text);cursor:pointer}
.accordion-title::before{content:"\f059";font-family:"Font Awesome 6 Free";font-weight:900;color:var(--color-primary);font-size:18px;flex-shrink:0}
.accordion-title::after{content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;margin-left:auto;font-size:13px;color:var(--color-text-light);transition:transform .3s}
.accordion-item.is-active .accordion-title::after{transform:rotate(180deg)}
.accordion-content{display:none;padding:0 22px 22px;color:var(--color-text-light);font-size:15px;line-height:1.8;border-top:1px dashed var(--color-border);margin:0 22px}
.accordion-item.is-active .accordion-content{display:block;padding-top:18px}
.cta-panel{position:relative;border-radius:calc(var(--radius-lg) + 8px);overflow:hidden;background:linear-gradient(140deg,var(--color-primary),var(--color-primary-dark));padding:56px;text-align:center;color:#fff;box-shadow:var(--shadow-lg)}
.cta-panel::before{content:"";position:absolute;top:-40px;right:-40px;width:180px;height:180px;border:24px solid rgba(255,255,255,.08);border-radius:50%}
.cta-panel h2{font-size:32px;margin-bottom:12px;color:#fff}
.cta-panel p{color:rgba(255,255,255,.85);margin-bottom:28px;max-width:520px;margin-left:auto;margin-right:auto;font-size:16px}
.site-footer{background:var(--color-bg-dark);color:rgba(253,250,244,.7);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-brand .brand{color:#fdfaf4;margin-bottom:16px}
.footer-brand .brand-icon{background:var(--color-primary)}
.footer-brand .brand-name{color:#fdfaf4}
.footer-brand .brand-name span{color:var(--color-accent)}
.footer-brand p{font-size:14px;line-height:1.8;margin-top:14px;max-width:360px;}
.footer-col h4{color:#fdfaf4;font-size:16px;margin-bottom:18px;position:relative;padding-bottom:12px}
.footer-col h4::after{content:"";position:absolute;left:0;bottom:0;width:32px;height:2px;background:var(--color-primary)}
.footer-col a{display:block;color:rgba(253,250,244,.6);font-size:14px;padding:6px 0;transition:var(--transition)}
.footer-col a:hover{color:var(--color-accent);transform:translateX(4px)}
.footer-bottom{border-top:1px solid rgba(253,250,244,.1);padding-top:22px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px}
.footer-bottom p{margin:0;font-size:13px}
.tech-links{display:flex;gap:18px;font-size:13px}
.tech-links a{color:rgba(253,250,244,.5)}
.tech-links a:hover{color:#fff}
@media (max-width:1024px){
  .header-inner{flex-wrap:wrap}
  .command-search{min-width:160px}
  .main-nav{margin:0;gap:2px}
  .main-nav a{padding:8px 10px;font-size:14px}
  .page-banner h1{font-size:40px}
  .rank-item{flex-wrap:wrap}
  .rank-tags{width:100%}
  .rank-meta{display:none}
  .strategy-media img{height:340px}
}
@media (max-width:768px){
  .section{padding:56px 0}
  .section-head h2{font-size:28px}
  .header-inner{height:64px;gap:12px}
  .brand-name{font-size:18px}
  .nav-toggle{display:inline-flex}
  .main-nav{position:fixed;top:64px;left:0;right:0;background:var(--color-bg);flex-direction:column;align-items:flex-start;padding:12px 24px 20px;border-bottom:1px solid var(--color-border);transform:translateY(-120%);transition:transform .35s ease;box-shadow:var(--shadow-md);z-index:99;gap:2px}
  .site-header.nav-open .main-nav{transform:translateY(0)}
  .main-nav a{width:100%;padding:12px 14px;border-radius:10px}
  .header-actions .btn{display:none}
  .command-search{display:none}
  .page-banner{padding:64px 0 52px}
  .page-banner h1{font-size:34px}
  .page-banner p{font-size:15px}
  .guide-card__media{height:170px}
  .rank-item{padding:18px;gap:14px}
  .rank-num{font-size:32px;min-width:46px}
  .strategy-media img{height:260px}
  .media-stamp{width:70px;height:70px;font-size:13px;right:14px;bottom:14px}
  .strategy-content{padding:24px 0 0}
  .strategy-content h2{font-size:26px}
  .timeline::before{left:10px;transform:none}
  .timeline-item:nth-child(odd),.timeline-item:nth-child(even){flex-direction:row}
  .timeline-dot{margin:0;margin-left:-10px;z-index:3}
  .timeline-card{width:calc(100% - 44px);margin-left:24px;padding:20px}
  .accordion-title{padding:16px;font-size:15px}
  .accordion-content{padding:0 16px 16px}
  .cta-panel{padding:40px 24px}
  .cta-panel h2{font-size:26px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .brand-icon{width:34px;height:34px;font-size:15px;border-radius:10px}
  .brand-name{font-size:16px}
  .page-banner h1{font-size:28px}
  .section-head p{font-size:14px}
  .guide-card__body h3{font-size:18px}
  .rank-info h3{font-size:16px}
  .rank-item{flex-direction:column;align-items:flex-start;gap:8px}
  .rank-tags{width:auto}
  .check-list li{font-size:14px}
  .cta-panel p{font-size:14px}
  .tech-links{flex-wrap:wrap}
}

/* roulang page: category3 */
/* ========== Design Variables ========== */
:root {
    --bg-ink: #1d1915;
    --bg-panel: #251f1a;
    --bg-card: #2b241e;
    --bg-hover: #342b23;
    --bg-input: #1d1814;
    --brand-main: #d4a574;
    --brand-amber: #c1955a;
    --brand-olive: #7e9063;
    --text-main: #f0e7db;
    --text-weak: #ab9b87;
    --text-faint: #7d6f5f;
    --border-soft: #433930;
    --border-strong: #6b584a;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 24px;
    --shadow-card: 0 12px 32px rgba(0, 0, 0, 0.35);
    --shadow-hover: 0 20px 48px rgba(0, 0, 0, 0.45);
    --shadow-glow: 0 0 0 1px rgba(212, 165, 116, 0.25), 0 8px 30px rgba(0, 0, 0, 0.5);
    --space-section: 88px;
    --space-section-md: 64px;
    --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    --font-serif: Georgia, "Times New Roman", "Songti SC", "SimSun", serif;
    --font-mono: "SF Mono", "Cascadia Code", Consolas, monospace;
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

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

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

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

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

input {
    font-family: inherit;
    border: none;
    outline: none;
    background: none;
    color: inherit;
}

ul, ol {
    list-style: none;
}

/* ========== Container ========== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

@media (max-width: 767px) {
    .container {
        padding: 0 20px;
    }
}

/* ========== Section Common ========== */
.section {
    padding: var(--space-section) 0;
    position: relative;
}

.section-alt {
    background-color: var(--bg-panel);
}

.section-flat {
    background-color: var(--bg-ink);
}

.section-head {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 56px;
}

.section-head.medium {
    max-width: 800px;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 12px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--brand-amber);
    font-weight: 600;
    margin-bottom: 16px;
    font-family: var(--font-mono);
}

.eyebrow::before,
.eyebrow::after {
    content: "";
    display: block;
    height: 1px;
    width: 28px;
    background: linear-gradient(90deg, transparent, var(--brand-amber));
}

.eyebrow::after {
    background: linear-gradient(90deg, var(--brand-amber), transparent);
}

.section-head h2 {
    font-size: 2.15rem;
    font-family: var(--font-serif);
    font-weight: 700;
    line-height: 1.3;
    letter-spacing: 1px;
    margin-bottom: 14px;
    color: var(--text-main);
}

.section-head p {
    color: var(--text-weak);
    font-size: 1.02rem;
    line-height: 1.8;
}

.section-divider {
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-strong), transparent);
    margin: 0;
    border: none;
    opacity: 0.4;
}

@media (max-width: 767px) {
    .section {
        padding: var(--space-section-md) 0;
    }
    .section-head h2 {
        font-size: 1.7rem;
    }
}

/* ========== Header / Nav ========== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(29, 25, 21, 0.88);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--border-soft);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 14px 24px;
    max-width: 1280px;
    margin: 0 auto;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 1.3rem;
    font-weight: 800;
    letter-spacing: 0.5px;
    white-space: nowrap;
    color: var(--text-main);
}

.brand-icon {
    width: 38px;
    height: 38px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--brand-main), var(--brand-amber));
    color: #1d1915;
    border-radius: 10px;
    font-size: 17px;
    box-shadow: 0 4px 12px rgba(212, 165, 116, 0.3);
}

.brand-name {
    font-family: var(--font-serif);
}

.brand-name span {
    color: var(--brand-amber);
}

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

.main-nav a {
    padding: 8px 16px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-weak);
    border-radius: 20px;
    position: relative;
    transition: background var(--transition), color var(--transition);
}

.main-nav a:hover {
    color: var(--text-main);
    background: rgba(255, 255, 255, 0.05);
}

.main-nav a.active {
    color: var(--brand-amber);
    background: rgba(212, 165, 116, 0.12);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 14px;
}

.command-search {
    display: flex;
    align-items: center;
    background: var(--bg-input);
    border: 1px solid var(--border-soft);
    border-radius: 22px;
    padding: 6px 10px 6px 14px;
    width: 220px;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.command-search i {
    color: var(--text-faint);
    font-size: 13px;
    margin-right: 8px;
}

.command-search input {
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-main);
    font-size: 0.85rem;
    width: 100%;
}

.command-search input::placeholder {
    color: var(--text-faint);
}

.command-search:focus-within {
    border-color: var(--brand-amber);
    box-shadow: 0 0 0 3px rgba(212, 165, 116, 0.15);
}

.command-search .search-shortcut {
    font-size: 0.7rem;
    color: var(--text-faint);
    padding: 2px 6px;
    border: 1px solid var(--border-soft);
    border-radius: 6px;
    font-family: var(--font-mono);
}

.header-cta {
    background: linear-gradient(135deg, var(--brand-main), var(--brand-amber));
    color: #1d1915;
    font-weight: 700;
    font-size: 0.85rem;
    padding: 8px 20px;
    border-radius: 22px;
    box-shadow: 0 4px 16px rgba(212, 165, 116, 0.25);
    transition: transform var(--transition), box-shadow var(--transition);
    white-space: nowrap;
}

.header-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(212, 165, 116, 0.35);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    padding: 8px;
    border-radius: 8px;
    transition: background var(--transition);
}

.nav-toggle:hover {
    background: rgba(255, 255, 255, 0.06);
}

.nav-toggle span {
    display: block;
    height: 2px;
    width: 100%;
    background: var(--text-main);
    border-radius: 2px;
    transition: transform var(--transition), opacity var(--transition);
}

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

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

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

@media (max-width: 1024px) {
    .command-search {
        width: 150px;
    }
    .main-nav a {
        padding: 8px 10px;
        font-size: 0.85rem;
    }
}

@media (max-width: 768px) {
    .header-inner {
        padding: 12px 20px;
        gap: 12px;
    }
    .main-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(29, 25, 21, 0.97);
        backdrop-filter: blur(18px);
        flex-direction: column;
        align-items: stretch;
        padding: 16px 20px 20px;
        gap: 4px;
        border-bottom: 1px solid var(--border-soft);
    }
    .main-nav.open {
        display: flex;
    }
    .main-nav a {
        padding: 12px 16px;
        font-size: 0.95rem;
        border-radius: 10px;
        border: 1px solid transparent;
    }
    .main-nav a.active {
        border-color: rgba(212, 165, 116, 0.25);
    }
    .command-search {
        display: none;
    }
    .header-cta {
        padding: 7px 14px;
        font-size: 0.8rem;
    }
    .nav-toggle {
        display: flex;
    }
}

/* ========== Page Banner ========== */
.page-banner {
    position: relative;
    padding: 92px 0 84px;
    background-size: cover;
    background-position: center;
    background-color: var(--bg-panel);
    border-bottom: 1px solid var(--border-soft);
    overflow: hidden;
}

.page-banner::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(100deg, rgba(29, 25, 21, 0.96) 0%, rgba(29, 25, 21, 0.82) 45%, rgba(29, 25, 21, 0.45) 100%);
}

.page-banner::after {
    content: "";
    position: absolute;
    bottom: -40px;
    right: 8%;
    width: 220px;
    height: 220px;
    background: radial-gradient(circle, rgba(212, 165, 116, 0.2), transparent 70%);
    pointer-events: none;
}

.banner-content {
    position: relative;
    z-index: 2;
    max-width: 720px;
}

.banner-breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--text-weak);
    margin-bottom: 20px;
}

.banner-breadcrumb a {
    color: var(--text-weak);
    transition: color var(--transition);
}

.banner-breadcrumb a:hover {
    color: var(--brand-amber);
}

.banner-breadcrumb i {
    font-size: 10px;
    color: var(--text-faint);
}

.banner-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(212, 165, 116, 0.12);
    border: 1px solid rgba(212, 165, 116, 0.3);
    color: var(--brand-amber);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 1px;
    margin-bottom: 20px;
}

.page-banner h1 {
    font-family: var(--font-serif);
    font-size: 2.9rem;
    font-weight: 700;
    line-height: 1.25;
    letter-spacing: 1px;
    margin-bottom: 18px;
    color: var(--text-main);
}

.page-banner h1 .highlight {
    color: var(--brand-amber);
}

.page-banner .banner-desc {
    font-size: 1.08rem;
    color: var(--text-weak);
    line-height: 1.9;
    max-width: 620px;
    margin-bottom: 28px;
}

.banner-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 26px;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--border-soft);
}

.banner-meta-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.88rem;
    color: var(--text-weak);
}

.banner-meta-item i {
    color: var(--brand-amber);
    width: 18px;
    text-align: center;
}

.banner-meta-item strong {
    color: var(--text-main);
    font-weight: 600;
    margin-right: 4px;
}

@media (max-width: 768px) {
    .page-banner {
        padding: 68px 0 56px;
    }
    .page-banner h1 {
        font-size: 2.1rem;
    }
    .page-banner .banner-desc {
        font-size: 0.98rem;
    }
    .banner-meta {
        gap: 14px;
        flex-direction: column;
    }
}

/* ========== News Cards ========== */
.news-section {
    padding: var(--space-section) 0;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.news-card {
    background: var(--bg-card);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
    display: flex;
    flex-direction: column;
}

.news-card:hover {
    transform: translateY(-6px);
    border-color: var(--border-strong);
    box-shadow: var(--shadow-hover);
}

.news-card-cover {
    position: relative;
    aspect-ratio: 16 / 9.5;
    overflow: hidden;
    background: var(--bg-panel);
}

.news-card-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.45s ease;
}

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

.news-tag {
    position: absolute;
    top: 14px;
    left: 14px;
    background: rgba(29, 25, 21, 0.75);
    backdrop-filter: blur(8px);
    color: var(--brand-amber);
    font-size: 0.75rem;
    font-weight: 600;
    padding: 5px 12px;
    border-radius: 16px;
    border: 1px solid rgba(212, 165, 116, 0.3);
    letter-spacing: 0.5px;
}

.news-card-body {
    padding: 24px 24px 22px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.news-card-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 0.78rem;
    color: var(--text-faint);
    margin-bottom: 12px;
}

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

.news-card-meta i {
    font-size: 12px;
    color: var(--brand-amber);
}

.news-card-body h3 {
    font-size: 1.08rem;
    font-weight: 650;
    line-height: 1.5;
    margin-bottom: 12px;
    color: var(--text-main);
    font-family: var(--font-serif);
    transition: color var(--transition);
}

.news-card:hover .news-card-body h3 {
    color: var(--brand-amber);
}

.news-card-body p {
    font-size: 0.9rem;
    color: var(--text-weak);
    line-height: 1.75;
    margin-bottom: 18px;
    flex: 1;
}

.read-more {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--brand-main);
    transition: gap var(--transition);
}

.read-more:hover {
    gap: 12px;
    color: var(--brand-amber);
}

.btn-more-wrap {
    text-align: center;
    margin-top: 48px;
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    border: 1px solid var(--border-strong);
    padding: 13px 34px;
    border-radius: 28px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-main);
    transition: all var(--transition);
}

.btn-outline:hover {
    border-color: var(--brand-amber);
    color: var(--brand-amber);
    box-shadow: 0 0 0 4px rgba(212, 165, 116, 0.08);
    transform: translateY(-2px);
}

.btn-outline i {
    font-size: 12px;
    transition: transform var(--transition);
}

.btn-outline:hover i {
    transform: translateX(4px);
}

@media (max-width: 1024px) {
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .news-grid {
        grid-template-columns: 1fr;
    }
    .news-card-body {
        padding: 20px;
    }
}

/* ========== Tags Cloud ========== */
.tags-section {
    padding: var(--space-section) 0;
    background: var(--bg-panel);
    border-top: 1px solid var(--border-soft);
    border-bottom: 1px solid var(--border-soft);
}

.tags-cloud {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 14px;
    max-width: 760px;
    margin: 0 auto;
}

.tag-chip {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-card);
    border: 1px solid var(--border-soft);
    padding: 9px 20px;
    border-radius: 24px;
    font-size: 0.88rem;
    color: var(--text-weak);
    transition: all var(--transition);
    cursor: pointer;
}

.tag-chip i {
    font-size: 13px;
    color: var(--brand-amber);
    opacity: 0.7;
}

.tag-chip:hover {
    background: var(--bg-hover);
    border-color: var(--brand-amber);
    color: var(--brand-amber);
    transform: translateY(-2px);
}

.tag-chip .count {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    background: rgba(255, 255, 255, 0.08);
    padding: 2px 8px;
    border-radius: 10px;
    color: var(--text-faint);
}

.tag-chip.active {
    background: linear-gradient(135deg, var(--brand-main), var(--brand-amber));
    color: #1d1915;
    font-weight: 600;
    border-color: transparent;
    box-shadow: 0 6px 20px rgba(212, 165, 116, 0.25);
}

.tag-chip.active i {
    color: #1d1915;
}

.tag-chip.active .count {
    background: rgba(29, 25, 21, 0.15);
    color: #1d1915;
}

@media (max-width: 768px) {
    .tags-cloud {
        gap: 10px;
    }
    .tag-chip {
        padding: 8px 14px;
        font-size: 0.82rem;
    }
}

/* ========== Feature Specials ========== */
.feature-section {
    padding: var(--space-section) 0;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.feature-card {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--border-soft);
    background: var(--bg-panel);
    transition: transform var(--transition), box-shadow var(--transition);
    min-height: 360px;
    display: flex;
    align-items: flex-end;
}

.feature-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
}

.feature-card .feature-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
    opacity: 0.75;
}

.feature-card:hover .feature-bg {
    transform: scale(1.07);
}

.feature-card::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 20%, rgba(29, 25, 21, 0.55) 65%, rgba(29, 25, 21, 0.95) 100%);
    pointer-events: none;
}

.feature-content {
    position: relative;
    z-index: 2;
    padding: 28px;
    width: 100%;
}

.feature-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--brand-amber);
    background: rgba(29, 25, 21, 0.6);
    padding: 4px 12px;
    border-radius: 14px;
    border: 1px solid rgba(212, 165, 116, 0.25);
    margin-bottom: 14px;
    font-family: var(--font-mono);
}

.feature-content h3 {
    font-family: var(--font-serif);
    font-size: 1.32rem;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 10px;
    color: var(--text-main);
}

.feature-content p {
    font-size: 0.9rem;
    color: rgba(240, 231, 219, 0.75);
    line-height: 1.75;
    margin-bottom: 16px;
}

.feature-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.86rem;
    color: var(--brand-main);
    font-weight: 600;
    transition: gap var(--transition);
}

.feature-card:hover .feature-link {
    gap: 13px;
    color: var(--brand-amber);
}

@media (max-width: 1024px) {
    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .feature-grid {
        grid-template-columns: 1fr;
    }
    .feature-card {
        min-height: 300px;
    }
}

/* ========== Timeline ========== */
.timeline-section {
    padding: var(--space-section) 0;
    background: var(--bg-panel);
    border-top: 1px solid var(--border-soft);
    border-bottom: 1px solid var(--border-soft);
}

.timeline {
    max-width: 720px;
    margin: 0 auto;
    position: relative;
}

.timeline::before {
    content: "";
    position: absolute;
    left: 28px;
    top: 0;
    bottom: 0;
    width: 1px;
    background: linear-gradient(180deg, var(--brand-amber), var(--border-soft));
}

.timeline-item {
    display: flex;
    gap: 28px;
    position: relative;
    padding: 24px 0;
}

.timeline-icon {
    flex: 0 0 56px;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border: 1px solid var(--border-strong);
    border-radius: 50%;
    color: var(--brand-amber);
    font-size: 18px;
    z-index: 2;
    box-shadow: 0 0 0 6px var(--bg-panel);
}

.timeline-content {
    flex: 1;
    padding-top: 6px;
}

.timeline-content h3 {
    font-size: 1.08rem;
    font-weight: 650;
    color: var(--text-main);
    margin-bottom: 6px;
    font-family: var(--font-serif);
}

.timeline-content p {
    font-size: 0.9rem;
    color: var(--text-weak);
    line-height: 1.75;
}

.timeline-date {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.78rem;
    color: var(--text-faint);
    margin-bottom: 6px;
    font-family: var(--font-mono);
}

@media (max-width: 640px) {
    .timeline::before {
        left: 20px;
    }
    .timeline-icon {
        flex-basis: 40px;
        width: 40px;
        height: 40px;
        font-size: 14px;
        margin-top: 4px;
    }
    .timeline-item {
        gap: 18px;
    }
}

/* ========== Stats ========== */
.stats-section {
    padding: var(--space-section) 0;
}

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

.stat-item {
    background: var(--bg-card);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-md);
    padding: 40px 28px;
    text-align: center;
    transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
    position: relative;
    overflow: hidden;
}

.stat-item::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--brand-amber), transparent);
    opacity: 0.4;
    transition: opacity var(--transition);
}

.stat-item:hover {
    border-color: var(--border-strong);
    transform: translateY(-4px);
    box-shadow: var(--shadow-card);
}

.stat-item:hover::before {
    opacity: 1;
}

.stat-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 54px;
    height: 54px;
    background: rgba(212, 165, 116, 0.1);
    border: 1px solid rgba(212, 165, 116, 0.2);
    border-radius: 14px;
    font-size: 20px;
    color: var(--brand-amber);
    margin-bottom: 18px;
}

.stat-number {
    font-family: var(--font-serif);
    font-size: 2.3rem;
    font-weight: 800;
    color: var(--text-main);
    line-height: 1.2;
    margin-bottom: 6px;
}

.stat-number .unit {
    font-size: 1.2rem;
    color: var(--brand-amber);
    margin-left: 2px;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-weak);
    letter-spacing: 1px;
}

@media (max-width: 1024px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
}

/* ========== FAQ ========== */
.faq-section {
    padding: var(--space-section) 0;
    background: var(--bg-panel);
    border-top: 1px solid var(--border-soft);
    border-bottom: 1px solid var(--border-soft);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

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

.faq-item:hover {
    border-color: var(--border-strong);
}

.faq-question {
    width: 100%;
    padding: 20px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    text-align: left;
    color: var(--text-main);
    font-size: 1rem;
    font-weight: 600;
    transition: color var(--transition);
}

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

.faq-question .faq-icon {
    flex: 0 0 28px;
    width: 28px;
    height: 28px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(212, 165, 116, 0.12);
    color: var(--brand-amber);
    border-radius: 50%;
    font-size: 12px;
    transition: transform var(--transition), background var(--transition);
}

.faq-item.open .faq-question .faq-icon {
    transform: rotate(180deg);
    background: rgba(212, 165, 116, 0.25);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    padding: 0 24px;
    transition: max-height 0.4s ease, padding 0.4s ease;
    color: var(--text-weak);
    font-size: 0.92rem;
    line-height: 1.8;
}

.faq-item.open .faq-answer {
    max-height: 300px;
    padding: 0 24px 22px;
}

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

.cta-panel {
    max-width: 960px;
    margin: 0 auto;
    background: linear-gradient(135deg, rgba(212, 165, 116, 0.14), rgba(126, 144, 99, 0.1));
    border: 1px solid rgba(212, 165, 116, 0.28);
    border-radius: var(--radius-lg);
    padding: 64px 56px;
    text-align: center;
    position: relative;
    backdrop-filter: blur(12px);
}

.cta-panel::before {
    content: "\f5a1";
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    position: absolute;
    top: -20px;
    right: 24px;
    font-size: 120px;
    color: rgba(212, 165, 116, 0.1);
    pointer-events: none;
}

.cta-panel h2 {
    font-family: var(--font-serif);
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 14px;
}

.cta-panel p {
    color: var(--text-weak);
    font-size: 1rem;
    line-height: 1.8;
    max-width: 560px;
    margin: 0 auto 32px;
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--brand-main), var(--brand-amber));
    color: #1d1915;
    font-weight: 700;
    padding: 13px 32px;
    border-radius: 26px;
    font-size: 0.92rem;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 6px 20px rgba(212, 165, 116, 0.25);
    transition: transform var(--transition), box-shadow var(--transition);
}

.btn-primary:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 10px 32px rgba(212, 165, 116, 0.35);
}

.btn-secondary {
    background: transparent;
    border: 1px solid var(--border-strong);
    color: var(--text-main);
    font-weight: 600;
    padding: 12px 30px;
    border-radius: 26px;
    font-size: 0.92rem;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: border-color var(--transition), color var(--transition), transform var(--transition);
}

.btn-secondary:hover {
    border-color: var(--brand-amber);
    color: var(--brand-amber);
    transform: translateY(-2px);
}

@media (max-width: 768px) {
    .cta-panel {
        padding: 44px 24px;
        border-radius: 18px;
    }
    .cta-panel h2 {
        font-size: 1.6rem;
    }
    .cta-actions {
        flex-direction: column;
        align-items: stretch;
    }
    .btn-primary,
    .btn-secondary {
        justify-content: center;
    }
}

/* ========== Footer ========== */
.site-footer {
    background: #171310;
    border-top: 1px solid var(--border-soft);
    padding: 64px 0 24px;
    position: relative;
}

.site-footer::before {
    content: "";
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--brand-amber), transparent);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 44px;
    border-bottom: 1px solid var(--border-soft);
    margin-bottom: 28px;
}

.footer-brand .brand {
    margin-bottom: 16px;
}

.footer-brand p {
    font-size: 0.9rem;
    color: var(--text-faint);
    line-height: 1.85;
    max-width: 340px;
}

.footer-col h4 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 18px;
    letter-spacing: 1px;
    font-family: var(--font-serif);
}

.footer-col a {
    display: block;
    font-size: 0.88rem;
    color: var(--text-faint);
    padding: 5px 0;
    transition: color var(--transition), padding-left var(--transition);
}

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

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}

.footer-bottom p {
    font-size: 0.82rem;
    color: var(--text-faint);
}

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

.tech-links a {
    font-size: 0.8rem;
    color: var(--text-faint);
    transition: color var(--transition);
}

.tech-links a:hover {
    color: var(--brand-amber);
}

@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 36px;
    }
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

/* ========== Focus Accessibility ========== */
a:focus-visible,
button:focus-visible,
input:focus-visible {
    outline: 2px solid var(--brand-amber);
    outline-offset: 3px;
    border-radius: 4px;
}

/* ========== Foundation overrides ========== */
.row {
    max-width: 1200px;
}

.button {
    transition: all var(--transition);
}

/* small text selection */
::selection {
    background: rgba(212, 165, 116, 0.3);
    color: var(--text-main);
}

/* scrollbar */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-ink);
}

::-webkit-scrollbar-thumb {
    background: var(--border-strong);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--brand-amber);
}