/* roulang page: index */
:root {
  --primary: #1a2b4a;
  --primary-light: #2b4a7a;
  --primary-dark: #0f1b30;
  --accent: #d4a537;
  --accent-light: #f0c75e;
  --accent-dark: #b8891f;
  --bg: #f5f7fb;
  --dark-bg: #0f1b30;
  --card-bg: #ffffff;
  --text: #1e2a3a;
  --text-light: #6b7a90;
  --border: #e3e9f2;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --shadow-sm: 0 2px 8px rgba(15,27,48,0.06);
  --shadow-md: 0 6px 24px rgba(15,27,48,0.10);
  --shadow-lg: 0 16px 40px rgba(15,27,48,0.16);
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 6rem;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; transition: all 0.25s ease; }
img { max-width: 100%; height: auto; display: block; }
button { font-family: inherit; cursor: pointer; }
ul, ol { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.section { padding: 90px 0; }
.section-sm { padding: 60px 0; }
.section-none { padding: 0; }
.grid-container { max-width: 1200px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  height: 70px;
}
.header-inner {
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.brand {
  font-size: 22px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: 0.5px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.brand-mark {
  display: inline-flex;
  width: 34px;
  height: 34px;
  background: var(--primary);
  color: #fff;
  border-radius: 9px;
  align-items: center;
  justify-content: center;
  font-size: 17px;
  font-weight: 800;
  box-shadow: 0 4px 12px rgba(26,43,74,0.22);
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}
.main-nav > a:not(.nav-cta) {
  font-size: 15px;
  color: var(--text);
  font-weight: 500;
  padding: 6px 2px;
  position: relative;
  line-height: 1.4;
}
.main-nav > a:not(.nav-cta):hover { color: var(--primary); }
.main-nav > a.active {
  color: var(--primary);
  font-weight: 700;
}
.main-nav > a.active::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}
.nav-cta {
  background: var(--accent);
  color: var(--primary-dark);
  padding: 10px 20px;
  border-radius: 10px;
  font-weight: 700;
  font-size: 14px;
  box-shadow: 0 4px 14px rgba(212,165,55,0.28);
}
.nav-cta:hover {
  background: var(--accent-light);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(212,165,55,0.38);
}
.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border);
  width: 42px;
  height: 42px;
  border-radius: 10px;
  font-size: 18px;
  color: var(--primary);
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
}
.nav-toggle:hover { background: #f0f2f8; }

.hero {
  background: linear-gradient(120deg, rgba(15,27,48,0.92) 0%, rgba(26,43,74,0.82) 55%, rgba(43,74,122,0.70) 100%), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color: #fff;
  padding: 150px 0 130px;
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 120px;
  background: linear-gradient(transparent, var(--bg));
  pointer-events: none;
}
.hero-inner { max-width: 720px; }
.hero-badge {
  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: 8px 18px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
  color: var(--accent-light);
  margin-bottom: 24px;
  backdrop-filter: blur(6px);
}
.hero h1 {
  font-size: clamp(2.2rem, 5.5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: 1px;
  margin-bottom: 20px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.2);
}
.hero h1 span { color: var(--accent-light); }
.hero p {
  font-size: 17px;
  color: rgba(255,255,255,0.85);
  line-height: 1.8;
  margin-bottom: 36px;
  max-width: 600px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 44px;
}
.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  color: rgba(255,255,255,0.76);
  font-size: 13px;
}
.hero-trust span { display: inline-flex; align-items: center; gap: 8px; }
.hero-trust i { color: var(--accent); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 14px 30px;
  border-radius: 12px;
  font-weight: 700;
  font-size: 15px;
  border: 1px solid transparent;
  transition: all 0.25s ease;
  line-height: 1;
  cursor: pointer;
}
.btn-primary {
  background: var(--accent);
  color: var(--primary-dark);
  box-shadow: 0 6px 18px rgba(212,165,55,0.30);
}
.btn-primary:hover {
  background: var(--accent-light);
  transform: translateY(-2px);
  box-shadow: 0 10px 26px rgba(212,165,55,0.40);
}
.btn-ghost {
  background: rgba(255,255,255,0.10);
  color: #fff;
  border-color: rgba(255,255,255,0.42);
  backdrop-filter: blur(4px);
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.20);
  transform: translateY(-2px);
  border-color: rgba(255,255,255,0.65);
}
.btn-secondary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 6px 18px rgba(26,43,74,0.22);
}
.btn-secondary:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
}

.section-head {
  max-width: 740px;
  margin: 0 auto 52px;
  text-align: center;
}
.section-tag {
  display: inline-block;
  background: rgba(212,165,55,0.14);
  color: #a07a1c;
  padding: 7px 16px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  margin-bottom: 16px;
}
.section-head h2 {
  font-size: clamp(1.7rem, 3.4vw, 2.3rem);
  color: var(--primary);
  margin-bottom: 14px;
  line-height: 1.25;
}
.section-head p {
  color: var(--text-light);
  font-size: 16px;
  max-width: 660px;
  margin: 0 auto;
}

.feature-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 34px 28px;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  height: 100%;
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  opacity: 0;
  transition: opacity 0.3s;
}
.feature-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-5px);
  border-color: #dfe5f0;
}
.feature-card:hover::before { opacity: 1; }
.feature-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 14px;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 20px;
  box-shadow: 0 8px 18px rgba(26,43,74,0.20);
}
.feature-card h3 { font-size: 18px; color: var(--primary); margin-bottom: 10px; }
.feature-card p { color: var(--text-light); font-size: 14px; line-height: 1.7; }

.category-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  display: block;
  height: 100%;
}
.category-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-6px);
  border-color: #d9e0ed;
}
.category-media {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--primary-light);
}
.category-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.55s ease;
}
.category-card:hover .category-media img { transform: scale(1.06); }
.category-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  background: var(--accent);
  color: var(--primary-dark);
  padding: 5px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}
.category-body { padding: 24px; }
.category-body h3 { font-size: 17px; color: var(--primary); margin-bottom: 8px; }
.category-body p { font-size: 14px; color: var(--text-light); line-height: 1.7; margin-bottom: 14px; }
.category-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--accent-dark);
  font-weight: 700;
  font-size: 14px;
}
.category-card:hover .category-link { gap: 12px; }

.news-feature {
  background: var(--primary);
  border-radius: var(--radius-lg);
  padding: 30px;
  color: #fff;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  position: relative;
  overflow: hidden;
}
.news-feature::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(200deg, rgba(15,27,48,0.2), rgba(15,27,48,0.68));
  z-index: 1;
}
.news-feature img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  inset: 0;
}
.news-feature-content { position: relative; z-index: 2; }
.news-feature h3 { font-size: 22px; font-weight: 800; margin-bottom: 8px; color: #fff; }
.news-feature p { font-size: 14px; color: rgba(255,255,255,0.8); margin-bottom: 0; }

.news-list { display: flex; flex-direction: column; gap: 12px; }
.news-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 18px 22px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: all 0.25s ease;
}
.news-item:hover {
  border-color: #ccd4e4;
  box-shadow: var(--shadow-md);
  transform: translateX(5px);
}
.news-cat {
  background: #eef2fa;
  color: var(--primary-light);
  padding: 4px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
}
.news-title {
  flex: 1;
  font-weight: 600;
  color: var(--text);
  font-size: 15px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.news-date { color: var(--text-light); font-size: 13px; white-space: nowrap; }
.news-empty {
  background: #fff;
  border: 1px dashed var(--border);
  border-radius: var(--radius-md);
  padding: 28px;
  text-align: center;
  color: var(--text-light);
  font-size: 14px;
}

.stats-band {
  background: var(--dark-bg);
  color: #fff;
  padding: 64px 0;
  position: relative;
  overflow: hidden;
}
.stats-band::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, rgba(212,165,55,0.2) 0%, transparent 70%);
}
.stat-item { text-align: center; padding: 20px 16px; }
.stat-item strong {
  display: block;
  font-size: 42px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.2;
  margin-bottom: 6px;
}
.stat-item span { font-size: 14px; opacity: 0.75; }

.step-card {
  background: #fff;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  padding: 32px 28px;
  position: relative;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  height: 100%;
}
.step-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}
.step-num {
  font-size: 40px;
  font-weight: 800;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--accent);
  display: block;
  line-height: 1;
  margin-bottom: 16px;
}
.step-card h3 { font-size: 17px; color: var(--primary); margin-bottom: 10px; }
.step-card p { color: var(--text-light); font-size: 14px; line-height: 1.7; }

.faq-wrap { max-width: 820px; margin: 0 auto; }
.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
  margin-bottom: 14px;
  overflow: hidden;
  transition: box-shadow 0.3s ease;
}
.faq-item.active { box-shadow: var(--shadow-sm); }
.faq-q {
  width: 100%;
  background: none;
  border: none;
  padding: 20px 24px;
  font-size: 15px;
  font-weight: 600;
  color: var(--primary);
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  text-align: left;
  transition: color 0.2s;
}
.faq-q:hover { color: var(--primary-light); }
.faq-q i { color: var(--accent); transition: transform 0.3s; flex-shrink: 0; }
.faq-item.active .faq-q i { transform: rotate(180deg); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 24px;
  color: var(--text-light);
  font-size: 14px;
  line-height: 1.8;
}
.faq-item.active .faq-a { max-height: 500px; padding: 0 24px 22px; }

.cta-section { padding: 30px 0 90px; }
.cta-box {
  background: linear-gradient(130deg, var(--primary) 0%, var(--primary-light) 100%);
  border-radius: var(--radius-lg);
  padding: 64px 40px;
  color: #fff;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.cta-box::before {
  content: '';
  position: absolute;
  top: -60%;
  right: -15%;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(212,165,55,0.25) 0%, transparent 70%);
}
.cta-box::after {
  content: '';
  position: absolute;
  bottom: -70%;
  left: -10%;
  width: 380px;
  height: 380px;
  background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
}
.cta-box h2 { font-size: clamp(1.6rem, 3.4vw, 2.2rem); font-weight: 800; margin-bottom: 14px; position: relative; z-index: 2; }
.cta-box p { color: rgba(255,255,255,0.82); margin-bottom: 30px; font-size: 16px; position: relative; z-index: 2; }
.cta-box .btn { position: relative; z-index: 2; }

.site-footer {
  background: var(--dark-bg);
  color: #a7b5cc;
  padding: 70px 0 26px;
}
.footer-inner { margin-bottom: 44px; }
.footer-brand h3 { color: #fff; font-size: 22px; font-weight: 800; margin-bottom: 12px; letter-spacing: 0.5px; }
.footer-brand p { font-size: 14px; color: #8495ad; line-height: 1.8; max-width: 380px; }
.site-footer h4 { color: #fff; font-size: 15px; font-weight: 700; margin-bottom: 18px; letter-spacing: 0.5px; }
.site-footer a { display: block; color: #a7b5cc; font-size: 14px; margin-bottom: 10px; }
.site-footer a:hover { color: var(--accent); transform: translateX(3px); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 22px;
  text-align: center;
  font-size: 13px;
  color: #62758e;
}

@media (max-width: 900px) {
  .nav-toggle { display: inline-flex; }
  .main-nav {
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    padding: 18px 24px 24px;
    gap: 14px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    display: none;
    align-items: stretch;
  }
  .main-nav.open { display: flex; }
  .main-nav > a:not(.nav-cta) { padding: 10px 0; border-bottom: 1px solid #f0f2f7; }
  .main-nav > a.active::after { display: none; }
  .main-nav > a.active { color: var(--primary); }
  .nav-cta { text-align: center; }
  .hero { padding: 100px 0 80px; }
  .section { padding: 64px 0; }
  .cta-box { padding: 48px 24px; }
}

@media (max-width: 640px) {
  body { font-size: 15px; }
  .brand { font-size: 19px; }
  .hero h1 { font-size: 2rem; }
  .hero p { font-size: 15px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { width: 100%; }
  .hero-trust { gap: 14px; flex-direction: column; }
  .section-head h2 { font-size: 1.6rem; }
  .news-item { flex-wrap: wrap; gap: 8px; }
  .news-date { margin-left: auto; }
  .stats-band { padding: 48px 0; }
  .stat-item strong { font-size: 34px; }
  .cta-section { padding: 20px 0 60px; }
  .footer-inner { text-align: center; }
  .site-footer h4 { margin-top: 24px; }
  .footer-brand p { margin: 0 auto; }
}

/* roulang page: category1 */
:root{
  --primary:#4f46e5;
  --primary-dark:#3730a3;
  --primary-light:#eef2ff;
  --accent:#f59e0b;
  --accent-light:#fffbeb;
  --ink:#0f172a;
  --text:#334155;
  --muted:#64748b;
  --subtle:#94a3b8;
  --border:#e2e8f0;
  --bg:#f8fafc;
  --card-bg:#ffffff;
  --radius:16px;
  --radius-sm:10px;
  --shadow-sm:0 1px 2px rgba(15,23,42,.06), 0 1px 3px rgba(15,23,42,.08);
  --shadow-md:0 4px 6px -1px rgba(15,23,42,.08), 0 2px 4px -2px rgba(15,23,42,.06);
  --shadow-lg:0 20px 25px -5px rgba(15,23,42,.12), 0 8px 10px -6px rgba(15,23,42,.08);
  --space-section:6rem;
  --space-section-sm:4rem;
  --font-sans:"PingFang SC","Microsoft YaHei","Helvetica Neue",Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-sans);background:var(--bg);color:var(--text);line-height:1.7;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary-dark)}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);backdrop-filter:blur(14px);border-bottom:1px solid var(--border);box-shadow:0 1px 3px rgba(15,23,42,.04)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.brand{display:flex;align-items:center;gap:10px;font-size:1.35rem;font-weight:800;letter-spacing:-.02em;color:var(--ink);line-height:1.2}
.brand:hover{color:var(--primary)}
.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;border-radius:10px;font-size:1.15rem;font-weight:900;box-shadow:0 4px 10px rgba(79,70,229,.28)}
.main-nav{display:flex;align-items:center;gap:6px}
.main-nav a{padding:9px 16px;border-radius:999px;font-size:.95rem;font-weight:600;color:var(--muted);transition:all .2s ease}
.main-nav a:hover{color:var(--primary);background:var(--primary-light)}
.main-nav a.active{background:var(--primary);color:#fff;box-shadow:0 4px 12px rgba(79,70,229,.3)}
.main-nav a.nav-cta{background:var(--accent);color:#fff;font-weight:700;box-shadow:0 4px 12px rgba(245,158,11,.3)}
.main-nav a.nav-cta:hover{background:#d97706;color:#fff;transform:translateY(-1px)}
.nav-toggle{display:none;background:none;border:0;font-size:1.4rem;color:var(--ink);cursor:pointer;padding:8px;border-radius:8px;line-height:1}
.nav-toggle:hover{background:var(--primary-light)}
@media (max-width:900px){
  .nav-toggle{display:block}
  .main-nav{position:fixed;top:72px;left:0;right:0;background:#fff;border-bottom:1px solid var(--border);flex-direction:column;align-items:stretch;padding:16px 24px;gap:8px;box-shadow:var(--shadow-lg);transform:translateY(-16px);opacity:0;pointer-events:none;transition:all .25s ease}
  .main-nav.open{transform:translateY(0);opacity:1;pointer-events:auto}
  .main-nav a{text-align:center;padding:13px 16px;border-radius:12px;font-size:1rem}
}
.page-hero{position:relative;background:linear-gradient(135deg,rgba(15,23,42,.88),rgba(55,48,163,.82)),url('/assets/images/backpic/back-1.png') center/cover no-repeat;color:#fff;padding:5.5rem 0 5rem;overflow:hidden}
.page-hero::after{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at 80% 20%,rgba(79,70,229,.25),transparent 60%)}
.hero-content{position:relative;z-index:2;max-width:860px}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.2);padding:7px 18px;border-radius:999px;font-size:.88rem;font-weight:600;letter-spacing:.04em;margin-bottom:22px;backdrop-filter:blur(6px)}
.hero-eyebrow i{color:var(--accent)}
.page-hero h1{font-size:clamp(2rem,4vw,3.25rem);font-weight:900;line-height:1.2;letter-spacing:-.02em;margin-bottom:16px}
.page-hero p{font-size:clamp(1rem,1.6vw,1.18rem);color:rgba(255,255,255,.85);max-width:660px;margin-bottom:28px}
.hero-meta{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.hero-tag{display:inline-flex;align-items:center;gap:7px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.16);padding:8px 16px;border-radius:999px;font-size:.87rem;color:rgba(255,255,255,.9)}
.breadcrumb-bar{background:#fff;border-bottom:1px solid var(--border);padding:14px 0}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:.9rem;color:var(--muted);flex-wrap:wrap}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:var(--subtle);font-size:.8rem}
.section{padding:var(--space-section) 0}
.section-sm{padding:var(--space-section-sm) 0}
.section-head{max-width:720px;margin-bottom:2.8rem}
.section-head .overline{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-weight:700;font-size:.82rem;letter-spacing:.08em;text-transform:uppercase;margin-bottom:10px}
.section-head h2{font-size:clamp(1.6rem,3vw,2.4rem);font-weight:800;color:var(--ink);line-height:1.25;letter-spacing:-.02em;margin-bottom:12px}
.section-head p{font-size:1.02rem;color:var(--muted)}
.intro-block{display:grid;grid-template-columns:1.1fr .9fr;gap:3.5rem;align-items:center}
.intro-text h2{font-size:clamp(1.5rem,2.8vw,2.2rem);font-weight:800;color:var(--ink);line-height:1.3;margin-bottom:18px}
.intro-text p{margin-bottom:14px;color:var(--text)}
.intro-points{list-style:none;margin-top:22px;display:grid;gap:14px}
.intro-points li{display:flex;gap:14px;align-items:flex-start;background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius-sm);padding:14px 16px;box-shadow:var(--shadow-sm)}
.intro-points li i{color:var(--primary);font-size:1.1rem;margin-top:4px;width:22px}
.intro-points li strong{color:var(--ink);font-weight:700}
.intro-points li span{display:block;font-size:.92rem;color:var(--muted)}
.intro-card{background:var(--card-bg);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-lg);border:1px solid var(--border)}
.intro-card img{width:100%;height:260px;object-fit:cover}
.intro-card-body{padding:26px}
.intro-card-body h3{font-size:1.15rem;font-weight:800;color:var(--ink);margin-bottom:10px}
.intro-card-body p{font-size:.95rem;color:var(--muted)}
@media (max-width:900px){
  .intro-block{grid-template-columns:1fr;gap:2rem}
  .section{padding:var(--space-section-sm) 0}
}
.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:10px}
.guide-card{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);transition:all .28s ease;display:flex;flex-direction:column}
.guide-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--primary)}
.guide-card .cover{position:relative;aspect-ratio:16/10;overflow:hidden}
.guide-card .cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.guide-card:hover .cover img{transform:scale(1.06)}
.guide-card .badge{position:absolute;top:14px;left:14px;background:rgba(255,255,255,.94);color:var(--primary);font-size:.78rem;font-weight:700;padding:6px 14px;border-radius:999px;box-shadow:var(--shadow-sm)}
.guide-card-body{padding:24px;flex:1;display:flex;flex-direction:column}
.guide-card-body h3{font-size:1.15rem;font-weight:800;color:var(--ink);margin-bottom:8px}
.guide-card-body p{font-size:.94rem;color:var(--muted);flex:1;margin-bottom:18px}
.guide-card-foot{display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--border);padding-top:16px}
.guide-card-foot span{font-size:.84rem;color:var(--subtle)}
.guide-card-foot a{display:inline-flex;align-items:center;gap:6px;font-size:.92rem;font-weight:700;color:var(--primary)}
.guide-card-foot a:hover{color:var(--primary-dark)}
@media (max-width:1024px){
  .guide-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:640px){
  .guide-grid{grid-template-columns:1fr}
}
.steps-section{background:linear-gradient(180deg,var(--primary-light),var(--bg))}
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:10px}
.step-card{position:relative;background:var(--card-bg);border-radius:var(--radius);padding:32px 24px 28px;box-shadow:var(--shadow-md);border:1px solid var(--border);transition:transform .25s ease}
.step-card:hover{transform:translateY(-4px)}
.step-num{font-size:2.6rem;font-weight:900;color:var(--primary-light);line-height:1;margin-bottom:18px;letter-spacing:-.03em}
.step-icon{display:inline-flex;align-items:center;justify-content:center;width:52px;height:52px;border-radius:14px;background:var(--primary-light);color:var(--primary);font-size:1.3rem;margin-bottom:16px}
.step-card h3{font-size:1.12rem;font-weight:800;color:var(--ink);margin-bottom:8px}
.step-card p{font-size:.92rem;color:var(--muted)}
@media (max-width:1024px){
  .steps-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:640px){
  .steps-grid{grid-template-columns:1fr}
}
.tips-section{background:var(--card-bg);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.tips-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.tip-item{display:flex;gap:16px;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);padding:22px 24px;transition:all .25s ease}
.tip-item:hover{border-color:var(--primary);background:var(--primary-light)}
.tip-item i{font-size:1.35rem;color:var(--accent);margin-top:4px}
.tip-item h4{font-size:1rem;font-weight:800;color:var(--ink);margin-bottom:4px}
.tip-item p{font-size:.9rem;color:var(--muted)}
@media (max-width:900px){
  .tips-grid{grid-template-columns:1fr}
}
.faq-section{background:var(--bg)}
.faq-list{max-width:820px;margin:0 auto}
.faq-item{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius-sm);margin-bottom:14px;overflow:hidden;transition:box-shadow .2s ease}
.faq-item:hover{box-shadow:var(--shadow-md)}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 24px;cursor:pointer;font-weight:700;color:var(--ink);font-size:1.02rem;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:'\f078';font-family:'Font Awesome 6 Free';font-weight:900;color:var(--primary);transition:transform .25s ease;flex-shrink:0}
.faq-item[open] summary::after{transform:rotate(180deg)}
.faq-item .faq-body{padding:0 24px 22px;color:var(--text);font-size:.95rem;line-height:1.75}
.cta-section{position:relative;background:linear-gradient(135deg,rgba(15,23,42,.92),rgba(79,70,229,.88)),url('/assets/images/backpic/back-2.png') center/cover no-repeat;color:#fff;text-align:center;padding:5rem 0}
.cta-inner{max-width:680px;margin:0 auto}
.cta-inner h2{font-size:clamp(1.7rem,3.4vw,2.6rem);font-weight:900;letter-spacing:-.02em;margin-bottom:14px}
.cta-inner p{font-size:1.05rem;color:rgba(255,255,255,.85);margin-bottom:30px}
.cta-actions{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 30px;border-radius:999px;font-weight:700;font-size:1rem;transition:all .25s ease;border:0;cursor:pointer;line-height:1.4}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px rgba(79,70,229,.35)}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--ink);box-shadow:0 8px 20px rgba(0,0,0,.15)}
.btn-light:hover{background:var(--primary-light);color:var(--primary);transform:translateY(-2px)}
.btn-outline-light{background:rgba(255,255,255,.12);border:1.5px solid rgba(255,255,255,.35);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.2);color:#fff;transform:translateY(-2px)}
.site-footer{background:#0f172a;color:#cbd5e1;padding-top:4rem;margin-top:0}
.footer-inner{padding-bottom:2.5rem}
.footer-brand h3{font-size:1.4rem;font-weight:800;color:#fff;margin-bottom:10px}
.footer-brand p{font-size:.92rem;color:#94a3b8;max-width:340px}
.site-footer h4{font-size:.95rem;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.03em}
.site-footer a{display:block;color:#94a3b8;font-size:.9rem;padding:4px 0;transition:color .2s ease}
.site-footer a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:18px 0;text-align:center}
.footer-bottom p{font-size:.86rem;color:#64748b}
@media (max-width:640px){
  .header-inner{height:64px}
  .main-nav{top:64px}
  .section{padding:3.2rem 0}
  .page-hero{padding:3.8rem 0}
  .hero-meta{gap:8px}
  .cta-actions .btn{width:100%}
}

/* roulang page: article */
:root {
  --color-primary: #1a3a5c;
  --color-primary-dark: #0f2540;
  --color-accent: #d4a853;
  --color-accent-light: #e6c97a;
  --color-bg: #f5f7fb;
  --color-white: #ffffff;
  --color-text: #1f2937;
  --color-text-weak: #6b7a8f;
  --color-border: #e5e9f0;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --shadow-sm: 0 2px 12px rgba(15,30,55,0.08);
  --shadow-md: 0 8px 30px rgba(15,30,55,0.1);
  --shadow-lg: 0 20px 50px rgba(15,30,55,0.16);
  --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  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: var(--transition); }
button, input { font-family: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.grid-x { display: flex; flex-wrap: wrap; }
.grid-margin-x > .cell { margin-right: 12px; margin-left: 12px; }
.cell { flex: 0 0 auto; min-height: 0; }
.large-8 { width: calc(66.6667% - 24px); }
.large-4 { width: calc(33.3333% - 24px); }
.large-5 { width: calc(41.6667% - 24px); }
.large-3 { width: calc(25% - 24px); }
.large-7 { width: calc(58.3333% - 24px); }
.large-6 { width: calc(50% - 24px); }
.large-12 { width: calc(100% - 24px); }
.medium-12 { width: calc(100% - 24px); }
.medium-6 { width: calc(50% - 24px); }

.site-header {
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 1px 20px rgba(15,30,55,0.06);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 20px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.02em;
  flex-shrink: 0;
}
.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
  border-radius: 10px;
  font-size: 18px;
  font-weight: 900;
  box-shadow: 0 4px 14px rgba(26,58,92,0.3);
}
.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 22px;
  color: var(--color-primary);
  cursor: pointer;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  transition: var(--transition);
}
.nav-toggle:hover { background: rgba(26,58,92,0.08); }
.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}
.main-nav a {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  padding: 10px 16px;
  border-radius: 999px;
  line-height: 1.2;
  transition: var(--transition);
}
.main-nav a:hover {
  color: var(--color-primary);
  background: rgba(26,58,92,0.06);
}
.main-nav a.active {
  color: var(--color-primary);
  background: rgba(26,58,92,0.1);
  font-weight: 600;
}
.main-nav a.nav-cta {
  background: linear-gradient(135deg, var(--color-accent), #b8893a);
  color: #fff;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: 999px;
  box-shadow: 0 4px 16px rgba(212,168,83,0.4);
}
.main-nav a.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 22px rgba(212,168,83,0.5);
}

.article-hero {
  background: linear-gradient(rgba(15,37,64,0.82), rgba(15,37,64,0.9)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color: #fff;
  padding: 70px 0 60px;
  position: relative;
}
.article-hero .container { position: relative; z-index: 1; }
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(255,255,255,0.7);
  margin-bottom: 18px;
}
.breadcrumb a:hover { color: var(--color-accent-light); }
.breadcrumb .sep { opacity: 0.5; }
.article-hero .badge {
  display: inline-block;
  background: rgba(212,168,83,0.2);
  border: 1px solid rgba(212,168,83,0.4);
  color: var(--color-accent-light);
  font-size: 13px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 999px;
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}
.article-hero h1 {
  font-size: clamp(26px, 3vw, 40px);
  font-weight: 800;
  line-height: 1.3;
  max-width: 800px;
  margin-bottom: 20px;
  letter-spacing: -0.01em;
}
.hero-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 14px;
  color: rgba(255,255,255,0.75);
}
.hero-meta span { display: flex; align-items: center; gap: 6px; }
.hero-meta i { color: var(--color-accent-light); }

.article-section {
  padding: 60px 0;
}
.article-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 36px;
}
.article-main {
  flex: 1 1 68%;
  min-width: 0;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 48px;
  border: 1px solid var(--color-border);
}
.article-sidebar {
  flex: 1 1 28%;
  min-width: 280px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.sidebar-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: 26px;
  border: 1px solid var(--color-border);
}
.sidebar-card h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.sidebar-card h3 i { color: var(--color-accent); }
.sidebar-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.sidebar-list li { border-bottom: 1px solid var(--color-border); padding: 10px 0; }
.sidebar-list li:last-child { border-bottom: none; padding-bottom: 0; }
.sidebar-list li:first-child { padding-top: 0; }
.sidebar-list a {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.5;
}
.sidebar-list a:hover { color: var(--color-primary); }
.sidebar-list .list-title { font-weight: 500; }
.sidebar-list .list-date { font-size: 12px; color: var(--color-text-weak); }
.sidebar-empty { font-size: 14px; color: var(--color-text-weak); padding: 8px 0; }
.sidebar-cta {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
  border-radius: var(--radius-md);
  padding: 28px;
  text-align: center;
}
.sidebar-cta h4 { font-size: 18px; margin-bottom: 8px; color: #fff; }
.sidebar-cta p { font-size: 14px; color: rgba(255,255,255,0.75); margin-bottom: 16px; }
.sidebar-cta .btn {
  display: inline-block;
  background: var(--color-accent);
  color: #fff;
  padding: 10px 24px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 14px;
  transition: var(--transition);
}
.sidebar-cta .btn:hover { background: var(--color-accent-light); transform: translateY(-2px); }

.article-content { font-size: 16px; line-height: 1.9; color: #2d3748; }
.article-content p { margin-bottom: 20px; }
.article-content h2 { font-size: 24px; color: var(--color-primary); margin: 32px 0 16px; font-weight: 700; }
.article-content h3 { font-size: 20px; color: var(--color-primary); margin: 28px 0 14px; font-weight: 700; }
.article-content h4 { font-size: 18px; color: var(--color-primary); margin: 22px 0 12px; font-weight: 600; }
.article-content ul, .article-content ol { margin: 0 0 20px 24px; }
.article-content li { margin-bottom: 8px; }
.article-content blockquote {
  border-left: 4px solid var(--color-accent);
  background: rgba(212,168,83,0.06);
  padding: 16px 20px;
  border-radius: 0 10px 10px 0;
  margin: 20px 0;
  color: var(--color-text-weak);
  font-style: italic;
}
.article-content a { color: var(--color-primary); text-decoration: underline; text-underline-offset: 3px; }
.article-content a:hover { color: var(--color-accent); }
.article-content img { border-radius: var(--radius-md); margin: 24px 0; box-shadow: var(--shadow-sm); }
.article-content table { width: 100%; border-collapse: collapse; margin: 20px 0; font-size: 14px; }
.article-content table th { background: var(--color-primary); color: #fff; padding: 12px 14px; text-align: left; }
.article-content table td { padding: 10px 14px; border-bottom: 1px solid var(--color-border); }
.article-content code { background: rgba(26,58,92,0.08); color: var(--color-primary); padding: 2px 6px; border-radius: 4px; font-size: 14px; }

.empty-state {
  text-align: center;
  padding: 60px 20px;
}
.empty-state i {
  font-size: 48px;
  color: var(--color-accent);
  margin-bottom: 20px;
}
.empty-state h2 { font-size: 28px; color: var(--color-primary); margin-bottom: 12px; }
.empty-state p { color: var(--color-text-weak); margin-bottom: 24px; font-size: 16px; }
.empty-state .btn {
  display: inline-block;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
  padding: 12px 30px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  box-shadow: 0 6px 20px rgba(26,58,92,0.3);
  transition: var(--transition);
}
.empty-state .btn:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(26,58,92,0.4); }

.related-section {
  background: var(--color-white);
  padding: 60px 0;
  border-top: 1px solid var(--color-border);
}
.section-title {
  font-size: 28px;
  font-weight: 800;
  color: var(--color-primary);
  text-align: center;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}
.section-subtitle {
  text-align: center;
  color: var(--color-text-weak);
  font-size: 15px;
  margin-bottom: 40px;
}
.related-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: center;
}
.related-card {
  flex: 1 1 calc(33.33% - 20px);
  min-width: 260px;
  background: var(--color-bg);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.related-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
  border-color: rgba(26,58,92,0.2);
}
.related-card .card-img {
  height: 180px;
  overflow: hidden;
  position: relative;
}
.related-card .card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.related-card:hover .card-img img { transform: scale(1.05); }
.related-card .card-body { padding: 20px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.card-category {
  font-size: 12px;
  color: var(--color-accent);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.related-card h3 { font-size: 16px; font-weight: 700; line-height: 1.4; color: var(--color-text); }
.related-card h3 a:hover { color: var(--color-primary); }
.card-meta { font-size: 13px; color: var(--color-text-weak); margin-top: auto; display: flex; align-items: center; gap: 8px; }

.cta-section { padding: 70px 0; background: linear-gradient(135deg, #0f2540, #1a3a5c); position: relative; overflow: hidden; }
.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -30%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(212,168,83,0.2), transparent 70%);
  border-radius: 50%;
}
.cta-box { text-align: center; position: relative; z-index: 1; max-width: 640px; margin: 0 auto; }
.cta-box h2 { color: #fff; font-size: 30px; font-weight: 800; margin-bottom: 14px; }
.cta-box p { color: rgba(255,255,255,0.75); font-size: 16px; margin-bottom: 28px; }
.cta-box .btn {
  display: inline-block;
  background: linear-gradient(135deg, var(--color-accent), #b8893a);
  color: #fff;
  padding: 14px 40px;
  border-radius: 999px;
  font-size: 16px;
  font-weight: 700;
  box-shadow: 0 8px 30px rgba(212,168,83,0.4);
  transition: var(--transition);
}
.cta-box .btn:hover { transform: translateY(-2px) scale(1.02); box-shadow: 0 12px 40px rgba(212,168,83,0.5); }

.site-footer {
  background: #0d1b30;
  color: #8895a8;
  padding: 60px 0 0;
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand h3 {
  color: #fff;
  font-size: 22px;
  font-weight: 800;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.footer-brand p { font-size: 14px; line-height: 1.7; color: #8895a8; max-width: 320px; }
.footer-brand .brand-mark {
  width: 32px;
  height: 32px;
  font-size: 15px;
  background: linear-gradient(135deg, var(--color-accent), #8b6b2f);
}
.site-footer h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}
.site-footer .footer-inner a {
  display: block;
  color: #8895a8;
  font-size: 14px;
  padding: 6px 0;
  line-height: 1.5;
  transition: var(--transition);
}
.site-footer .footer-inner a:hover { color: var(--color-accent-light); padding-left: 4px; }
.footer-bottom {
  padding: 22px 0;
  text-align: center;
  border-top: 1px solid rgba(255,255,255,0.06);
  font-size: 13px;
  color: #6b7a8f;
}

@media (max-width: 1024px) {
  .container { padding: 0 20px; }
  .article-main { padding: 36px; }
  .article-main { flex-basis: 100%; }
  .article-sidebar { flex-basis: 100%; min-width: 0; flex-direction: row; flex-wrap: wrap; }
  .sidebar-card { flex: 1 1 calc(50% - 12px); }
  .related-card { flex-basis: calc(50% - 20px); }
}

@media (max-width: 768px) {
  .header-inner { height: 64px; }
  .brand { font-size: 18px; }
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .main-nav {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 20px;
    gap: 8px;
    box-shadow: 0 20px 40px rgba(15,30,55,0.15);
    transform: translateY(-120%);
    visibility: hidden;
    opacity: 0;
    transition: var(--transition);
    border-radius: 0 0 20px 20px;
    z-index: 999;
    margin: 0 12px;
    border: 1px solid var(--color-border);
    border-top: none;
  }
  .main-nav.open {
    transform: translateY(0);
    visibility: visible;
    opacity: 1;
  }
  .main-nav a { padding: 14px 16px; font-size: 16px; }
  .main-nav a.nav-cta { text-align: center; }
  .article-hero { padding: 50px 0 40px; }
  .article-section { padding: 40px 0; }
  .article-main { padding: 28px 20px; }
  .article-grid { gap: 24px; }
  .section-title { font-size: 24px; }
  .cta-box h2 { font-size: 24px; }
  .sidebar-card { flex-basis: 100%; }
  .large-8, .large-4, .large-5, .large-3, .large-7, .large-6, .large-12, .medium-12, .medium-6 {
    width: calc(100% - 24px);
    margin-left: 12px;
    margin-right: 12px;
  }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .brand { font-size: 16px; }
  .brand-mark { width: 34px; height: 34px; font-size: 16px; }
  .article-hero h1 { font-size: 22px; }
  .hero-meta { gap: 10px; font-size: 13px; }
  .article-main { padding: 24px 16px; border-radius: 16px; }
  .related-card { flex-basis: 100%; }
  .footer-inner { gap: 20px; }
}