/* roulang page: index */
:root {
  --primary: #0b3d91;
  --primary-light: #164cb8;
  --primary-dark: #082a63;
  --accent: #f0a500;
  --accent-dark: #d18e00;
  --bg: #f4f6fb;
  --bg-alt: #ffffff;
  --bg-dark: #0d1b2e;
  --text: #14213d;
  --text-light: #5a6b8c;
  --text-lighter: #8a9ab8;
  --border: #e3e8f0;
  --shadow: 0 8px 30px rgba(13, 27, 46, 0.08);
  --shadow-lg: 0 16px 40px rgba(13, 27, 46, 0.14);
  --radius: 12px;
  --radius-lg: 20px;
  --transition: all .3s ease;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent); }
ul, ol { margin: 0; padding: 0; list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.text-center { text-align: center; }
.text-muted { color: var(--text-light); }
.section-header { text-align: center; max-width: 680px; margin: 0 auto 52px; }
.section-header h2 { font-size: 36px; font-weight: 800; color: var(--text); margin-bottom: 14px; line-height: 1.3; letter-spacing: -0.5px; }
.section-header p { font-size: 16px; color: var(--text-light); margin: 0; }
.section-header .sub-badge { display: inline-block; background: rgba(11, 61, 145, 0.08); color: var(--primary); padding: 6px 18px; border-radius: 40px; font-size: 13px; font-weight: 600; letter-spacing: 1px; margin-bottom: 14px; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 28px; border-radius: 50px; font-size: 15px; font-weight: 600; line-height: 1.4; border: 2px solid transparent; cursor: pointer; transition: var(--transition); text-align: center; }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 6px 20px rgba(11, 61, 145, 0.25); }
.btn-primary:hover { background: var(--primary-light); color: #fff; transform: translateY(-2px); box-shadow: 0 10px 28px rgba(11, 61, 145, 0.35); }
.btn-accent { background: var(--accent); color: #fff; box-shadow: 0 6px 20px rgba(240, 165, 0, 0.25); }
.btn-accent:hover { background: var(--accent-dark); color: #fff; transform: translateY(-2px); }
.btn-outline { background: transparent; border-color: var(--primary); color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }
.btn-lg { padding: 16px 38px; font-size: 16px; }
.btn-sm { padding: 8px 18px; font-size: 14px; }

.site-header { position: sticky; top: 0; z-index: 1000; background: rgba(255,255,255,0.92); backdrop-filter: blur(16px); border-bottom: 1px solid var(--border); }
.site-header .header-inner { display: flex; align-items: center; justify-content: space-between; min-height: 72px; }
.brand { display: flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 800; color: var(--text); letter-spacing: -0.3px; }
.brand:hover { color: var(--text); }
.brand-icon { width: 40px; height: 40px; background: linear-gradient(135deg, var(--primary), var(--primary-light)); border-radius: 10px; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 18px; box-shadow: 0 4px 12px rgba(11, 61, 145, 0.3); }
.main-nav { display: flex; align-items: center; }
.main-nav ul { display: flex; align-items: center; gap: 6px; }
.main-nav li a { padding: 10px 18px; border-radius: 50px; font-size: 15px; font-weight: 500; color: var(--text-light); }
.main-nav li a:hover { color: var(--primary); background: rgba(11, 61, 145, 0.06); }
.main-nav li.active a { color: var(--primary); background: rgba(11, 61, 145, 0.1); font-weight: 600; }
.header-actions { display: flex; align-items: center; gap: 12px; }
.header-actions .btn { padding: 10px 22px; font-size: 14px; }
.nav-toggle { display: none; background: none; border: none; font-size: 26px; color: var(--text); cursor: pointer; padding: 6px; line-height: 1; }

.hero { position: relative; background: url('/assets/images/backpic/back-1.png') center/cover no-repeat; color: #fff; padding: 120px 0 100px; overflow: hidden; }
.hero::before { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(8, 42, 99, 0.92) 0%, rgba(11, 61, 145, 0.75) 55%, rgba(22, 76, 184, 0.55) 100%); }
.hero-content { position: relative; z-index: 2; max-width: 700px; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,0.15); border: 1px solid rgba(255,255,255,0.3); padding: 8px 20px; border-radius: 40px; font-size: 13px; font-weight: 500; margin-bottom: 24px; backdrop-filter: blur(4px); }
.hero h1 { font-size: 52px; font-weight: 900; line-height: 1.2; margin: 0 0 18px; letter-spacing: -1px; }
.hero h1 .highlight { color: var(--accent); }
.hero-desc { font-size: 18px; line-height: 1.7; color: rgba(255,255,255,0.92); max-width: 560px; margin-bottom: 32px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; }
.hero-actions .btn { min-width: 160px; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 24px; margin-top: 48px; padding-top: 24px; border-top: 1px solid rgba(255,255,255,0.2); }
.hero-meta-item { display: flex; align-items: center; gap: 10px; font-size: 14px; color: rgba(255,255,255,0.85); }
.hero-meta-item i { color: var(--accent); }

.features { background: var(--bg-alt); position: relative; margin-top: -40px; z-index: 5; }
.features .grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.feature-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 36px 30px; box-shadow: var(--shadow); transition: var(--transition); }
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.feature-icon { width: 56px; height: 56px; border-radius: 16px; background: linear-gradient(135deg, var(--primary), var(--primary-light)); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 22px; margin-bottom: 20px; box-shadow: 0 8px 20px rgba(11, 61, 145, 0.25); }
.feature-card:nth-child(2) .feature-icon { background: linear-gradient(135deg, var(--accent), #ffb92e); box-shadow: 0 8px 20px rgba(240, 165, 0, 0.3); }
.feature-card:nth-child(3) .feature-icon { background: linear-gradient(135deg, #0f766e, #14b8a6); box-shadow: 0 8px 20px rgba(15, 118, 110, 0.3); }
.feature-card h3 { font-size: 19px; font-weight: 700; margin-bottom: 10px; }
.feature-card p { color: var(--text-light); font-size: 14px; margin: 0; line-height: 1.7; }

.category-section { background: var(--bg); }
.category-card { background: var(--bg-dark); border-radius: var(--radius-lg); overflow: hidden; display: flex; flex-direction: column; min-height: 400px; position: relative; }
.category-card .category-bg { position: absolute; inset: 0; background-size: cover; background-position: center; opacity: 0.4; transition: var(--transition); }
.category-card:hover .category-bg { opacity: 0.3; transform: scale(1.05); }
.category-card .category-content { position: relative; z-index: 2; padding: 40px; display: flex; flex-direction: column; justify-content: flex-end; height: 100%; min-height: 400px; background: linear-gradient(180deg, transparent 0%, rgba(13, 27, 46, 0.85) 75%); }
.category-content .cat-tag { display: inline-block; background: var(--accent); color: #fff; padding: 5px 14px; border-radius: 30px; font-size: 12px; font-weight: 700; letter-spacing: 1px; margin-bottom: 14px; align-self: flex-start; }
.category-content h3 { color: #fff; font-size: 26px; font-weight: 700; margin-bottom: 10px; }
.category-content p { color: rgba(255,255,255,0.8); font-size: 15px; margin-bottom: 20px; }
.category-content .btn { align-self: flex-start; }

.latest-section { background: var(--bg-alt); }
.latest-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.post-card { display: flex; gap: 18px; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; transition: var(--transition); }
.post-card:hover { box-shadow: var(--shadow); transform: translateY(-4px); border-color: transparent; }
.post-card .post-thumb { width: 110px; height: 90px; border-radius: 8px; object-fit: cover; background: #eee; flex-shrink: 0; }
.post-card .post-body { flex: 1; }
.post-card .post-cat { display: inline-block; font-size: 12px; color: var(--primary); background: rgba(11, 61, 145, 0.08); padding: 3px 10px; border-radius: 20px; font-weight: 600; margin-bottom: 8px; }
.post-card h3 { font-size: 17px; font-weight: 650; margin: 0 0 6px; line-height: 1.4; }
.post-card h3 a { color: var(--text); }
.post-card h3 a:hover { color: var(--primary); }
.post-card .post-excerpt { color: var(--text-light); font-size: 13.5px; line-height: 1.6; margin: 0; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.post-card .post-date { display: flex; align-items: center; gap: 6px; margin-top: 10px; font-size: 12.5px; color: var(--text-lighter); }
.steps-section { background: linear-gradient(180deg, var(--bg) 0%, #eef1f7 100%); }
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; counter-reset: step; }
.step-card { text-align: center; padding: 36px 24px; background: #fff; border-radius: var(--radius-lg); box-shadow: var(--shadow); position: relative; border: 1px solid var(--border); transition: var(--transition); }
.step-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.step-num { font-size: 46px; font-weight: 900; color: rgba(11, 61, 145, 0.12); line-height: 1; margin-bottom: 14px; }
.step-icon { width: 44px; height: 44px; border-radius: 50%; background: var(--primary); color: #fff; display: flex; align-items: center; justify-content: center; margin: 0 auto 18px; font-size: 18px; }
.step-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 10px; }
.step-card p { font-size: 13.5px; color: var(--text-light); margin: 0; line-height: 1.65; }
.stats-section { background: var(--bg-dark); color: #fff; text-align: center; padding: 80px 0; }
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; }
.stat-item .stat-num { font-size: 52px; font-weight: 900; color: var(--accent); line-height: 1.2; }
.stat-item .stat-label { font-size: 16px; color: rgba(255,255,255,0.7); margin-top: 8px; }
.stat-icon { font-size: 20px; margin-bottom: 10px; }

.faq-section { background: var(--bg); }
.faq-list { max-width: 820px; margin: 0 auto; }
.faq-item { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 14px; overflow: hidden; transition: box-shadow .3s; }
.faq-item:hover { box-shadow: var(--shadow); }
.faq-question { display: flex; justify-content: space-between; align-items: center; padding: 20px 26px; cursor: pointer; font-weight: 600; font-size: 16px; }
.faq-question i { color: var(--primary); transition: transform .3s; }
.faq-item.active .faq-question i { transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .4s ease; margin: 0; padding: 0 26px; color: var(--text-light); font-size: 14.5px; line-height: 1.75; }
.faq-item.active .faq-answer { max-height: 300px; padding-bottom: 20px; }

.cta-section { background: linear-gradient(135deg, var(--primary-dark), var(--primary) 60%, var(--primary-light)); position: relative; overflow: hidden; }
.cta-inner { text-align: center; padding: 80px 0; position: relative; z-index: 2; }
.cta-inner h2 { color: #fff; font-size: 38px; font-weight: 800; margin-bottom: 14px; }
.cta-inner p { color: rgba(255,255,255,0.85); font-size: 17px; margin-bottom: 32px; max-width: 600px; margin-left: auto; margin-right: auto; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

.site-footer { background: var(--bg-dark); color: rgba(255,255,255,0.7); padding: 60px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,0.1); }
.footer-brand .brand { color: #fff; margin-bottom: 14px; }
.footer-brand p { font-size: 14px; line-height: 1.75; margin-bottom: 18px; }
.footer-col h4 { color: #fff; font-size: 16px; font-weight: 700; margin-bottom: 16px; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { color: rgba(255,255,255,0.6); font-size: 14px; }
.footer-col ul li a:hover { color: var(--accent); }
.footer-bottom { padding: 20px 0; text-align: center; font-size: 13px; color: rgba(255,255,255,0.4); }
.footer-bottom .container { border-top: 1px solid rgba(255,255,255,0.08); padding-top: 20px; }
.footer-bottom a { color: rgba(255,255,255,0.5); }

@media (max-width: 900px) {
  .features .grid { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .latest-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero h1 { font-size: 40px; }
  .stats-grid { grid-template-columns: 1fr; gap: 30px; }
}
@media (max-width: 640px) {
  .section { padding: 56px 0; }
  .site-header .header-inner { flex-wrap: wrap; }
  .nav-toggle { display: block; }
  .main-nav { display: none; width: 100%; order: 3; padding: 10px 0; }
  .main-nav.open { display: flex; }
  .main-nav ul { flex-direction: column; width: 100%; align-items: stretch; }
  .main-nav li a { display: block; padding: 14px 16px; }
  .header-actions { margin-left: auto; }
  .header-actions .btn { display: none; }
  .hero { padding: 80px 0 70px; }
  .hero h1 { font-size: 32px; }
  .hero-desc { font-size: 16px; }
  .hero-actions .btn { width: 100%; }
  .steps-grid { grid-template-columns: 1fr; }
  .latest-grid { grid-template-columns: 1fr; }
  .section-header h2 { font-size: 28px; }
  .cta-inner h2 { font-size: 28px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .post-card { flex-direction: column; }
  .post-card .post-thumb { width: 100%; height: 160px; }
}

/* roulang page: article */
:root {
  --primary: #2563eb;
  --primary-dark: #1e3a8a;
  --primary-light: #60a5fa;
  --primary-soft: #eff6ff;
  --accent: #f59e0b;
  --accent-soft: #fef3c7;
  --bg-body: #f4f6fb;
  --bg-white: #ffffff;
  --bg-deep: #0f172a;
  --text-main: #1e293b;
  --text-weak: #64748b;
  --border: #e2e8f0;
  --radius-xl: 24px;
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-xs: 0 1px 3px rgba(15, 23, 42, 0.06);
  --shadow-sm: 0 4px 16px rgba(15, 23, 42, 0.08);
  --shadow-md: 0 12px 32px rgba(15, 23, 42, 0.1);
  --shadow-lg: 0 24px 60px rgba(15, 23, 42, 0.16);
  --font-main: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  --transition: all 0.3s ease;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-main);
  background: var(--bg-body);
  color: var(--text-main);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: inline-block; vertical-align: middle; }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-dark); }
ul, ol { padding-left: 1.25rem; }
h1, h2, h3, h4, h5 {
  font-weight: 800;
  line-height: 1.35;
  color: var(--text-main);
  margin: 0 0 0.6em;
}
p { margin: 0 0 1em; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.grid-container { max-width: 1200px; }

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 700;
  font-family: var(--font-main);
  border-radius: 999px;
  padding: 12px 28px;
  border: none;
  line-height: 1.4;
  cursor: pointer;
  transition: var(--transition);
  font-size: 0.95rem;
  white-space: nowrap;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); color: #fff; transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-primary:active { transform: translateY(0); }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: #d97706; color: #fff; transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-outline { background: transparent; color: var(--primary); border: 2px solid var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-light { background: #fff; color: var(--primary-dark); }
.btn-light:hover { background: var(--primary-soft); color: var(--primary-dark); transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.btn-sm { padding: 9px 20px; font-size: 0.875rem; }
.btn-lg { padding: 16px 40px; font-size: 1.05rem; }
.btn:focus-visible, a:focus-visible { outline: 3px solid var(--primary-light); outline-offset: 2px; }

/* ===== 顶部导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 74px;
  gap: 16px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
  font-size: 1.2rem;
  color: var(--primary-dark);
  letter-spacing: 0.2px;
  flex-shrink: 0;
}
.brand-icon {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  border-radius: 12px;
  font-size: 1rem;
  box-shadow: var(--shadow-xs);
}
.main-nav ul {
  display: flex;
  list-style: none;
  gap: 4px;
  margin: 0;
  padding: 0;
}
.main-nav a {
  padding: 9px 18px;
  border-radius: 999px;
  font-weight: 600;
  color: var(--text-main);
  display: block;
  font-size: 0.93rem;
}
.main-nav a:hover { color: var(--primary); background: var(--primary-soft); }
.main-nav li.active a { background: var(--primary); color: #fff; }
.header-actions { display: flex; align-items: center; gap: 12px; }
.nav-toggle {
  display: none;
  background: var(--bg-body);
  border: 1px solid var(--border);
  border-radius: 10px;
  width: 42px;
  height: 42px;
  color: var(--text-main);
  font-size: 1.1rem;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.nav-toggle:hover { background: var(--primary-soft); color: var(--primary); }

/* ===== 内页横幅 ===== */
.inner-banner {
  position: relative;
  color: #fff;
  padding: 76px 0 84px;
  background-image: linear-gradient(100deg, rgba(15, 23, 42, 0.93) 10%, rgba(30, 58, 138, 0.86) 60%, rgba(37, 99, 235, 0.78) 100%), url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  overflow: hidden;
}
.inner-banner::after {
  content: '';
  position: absolute;
  width: 400px;
  height: 400px;
  right: -120px;
  bottom: -160px;
  background: radial-gradient(circle, rgba(96, 165, 250, 0.35), transparent 65%);
  pointer-events: none;
}
.inner-banner .container { position: relative; z-index: 2; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #fff;
  padding: 6px 16px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  margin-bottom: 18px;
}
.inner-banner h1 {
  color: #fff;
  font-size: clamp(1.8rem, 3.6vw, 2.8rem);
  max-width: 860px;
  line-height: 1.3;
  margin-bottom: 14px;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
}
.inner-banner .banner-desc {
  color: rgba(255, 255, 255, 0.85);
  max-width: 720px;
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: 24px;
}
.banner-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.8);
}
.banner-meta span { display: inline-flex; align-items: center; gap: 8px; }
.banner-meta i { color: var(--accent); }

/* ===== 面包屑 ===== */
.breadcrumb-wrap {
  background: var(--bg-white);
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
}
.breadcrumb-wrap .container {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.86rem;
  color: var(--text-weak);
  flex-wrap: wrap;
}
.breadcrumb-wrap a { color: var(--text-weak); font-weight: 600; }
.breadcrumb-wrap a:hover { color: var(--primary); }
.breadcrumb-wrap i { font-size: 0.7rem; color: #94a3b8; }
.breadcrumb-wrap .current { color: var(--primary); font-weight: 700; }

/* ===== 文章主体 ===== */
.article-main-section {
  padding: 48px 0 64px;
}
.article-card {
  background: var(--bg-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  padding: 40px;
  border: 1px solid rgba(226, 232, 240, 0.7);
}
.article-cover {
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 28px;
  box-shadow: var(--shadow-sm);
}
.article-cover img { width: 100%; aspect-ratio: 16 / 7; object-fit: cover; display: block; }
.article-body { font-size: 1rem; line-height: 1.9; color: var(--text-main); }
.article-body h2 { font-size: 1.45rem; margin-top: 1.6em; margin-bottom: 0.7em; border-left: 4px solid var(--primary); padding-left: 16px; }
.article-body h3 { font-size: 1.2rem; margin-top: 1.4em; }
.article-body p { margin-bottom: 1.2em; }
.article-body ul, .article-body ol { margin-bottom: 1.2em; }
.article-body li { margin-bottom: 0.4em; }
.article-body a { text-decoration: underline; text-underline-offset: 3px; }
.article-body blockquote {
  border-left: 4px solid var(--primary);
  background: var(--primary-soft);
  padding: 16px 20px;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: 1.4em 0;
  color: var(--text-main);
  font-style: normal;
}
.article-body img { border-radius: var(--radius-md); margin: 1em 0; box-shadow: var(--shadow-sm); }
.article-body table { width: 100%; border-collapse: collapse; margin: 1.4em 0; }
.article-body th, .article-body td { border: 1px solid var(--border); padding: 12px 14px; text-align: left; }
.article-body th { background: var(--primary-soft); font-weight: 700; }
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  border-top: 1px solid var(--border);
  margin-top: 32px;
  padding-top: 24px;
}
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--primary-soft);
  color: var(--primary-dark);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 0.8rem;
  font-weight: 600;
}
/* 侧栏 */
.sidebar .side-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 24px;
  border: 1px solid rgba(226, 232, 240, 0.7);
  margin-bottom: 24px;
}
.side-card h3 {
  font-size: 1rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
}
.side-card h3 i { color: var(--primary); }
.side-info-list { list-style: none; margin: 0; padding: 0; }
.side-info-list li { display: flex; align-items: center; gap: 12px; padding: 8px 0; border-bottom: 1px dashed var(--border); font-size: 0.92rem; color: var(--text-main); }
.side-info-list li:last-child { border-bottom: none; }
.side-info-list .label { color: var(--text-weak); min-width: 56px; }
.side-cta {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  text-align: center;
  margin-bottom: 24px;
  box-shadow: var(--shadow-md);
}
.side-cta h3 { color: #fff; font-size: 1.1rem; margin-bottom: 10px; }
.side-cta p { color: rgba(255, 255, 255, 0.85); font-size: 0.88rem; margin-bottom: 18px; }
.side-nav-links { list-style: none; margin: 0; padding: 0; }
.side-nav-links li { margin-bottom: 4px; }
.side-nav-links a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  font-weight: 600;
  color: var(--text-main);
  font-size: 0.92rem;
}
.side-nav-links a:hover { background: var(--primary-soft); color: var(--primary); }

/* ===== 空状态 ===== */
.empty-state {
  text-align: center;
  padding: 60px 20px;
}
.empty-state i { font-size: 3rem; color: #cbd5e1; margin-bottom: 18px; }
.empty-state h2 { font-size: 1.6rem; margin-bottom: 10px; }
.empty-state p { color: var(--text-weak); margin-bottom: 24px; }

/* ===== 服务要点 ===== */
.service-points {
  background: var(--bg-white);
  padding: 64px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.section-head { text-align: center; max-width: 700px; margin: 0 auto 44px; }
.section-head .overline {
  display: inline-block;
  background: var(--primary-soft);
  color: var(--primary-dark);
  padding: 5px 16px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 1px;
  margin-bottom: 14px;
}
.section-head h2 { font-size: clamp(1.6rem, 2.6vw, 2.2rem); margin-bottom: 12px; }
.section-head p { color: var(--text-weak); font-size: 1rem; }
.feature-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 30px 24px;
  height: 100%;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0;
  transition: var(--transition);
}
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: transparent; }
.feature-card:hover::before { opacity: 1; }
.feature-card .icon-box {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: var(--primary-soft);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 18px;
}
.feature-card h3 { font-size: 1.1rem; margin-bottom: 10px; }
.feature-card p { color: var(--text-weak); font-size: 0.92rem; margin-bottom: 0; }
.feature-card.light { background: var(--bg-white); }

/* ===== 相关专题 ===== */
.related-section { padding: 68px 0; }
.topic-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-white);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-xs);
  transition: var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
}
.topic-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: transparent; }
.topic-card .topic-img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; display: block; }
.topic-card .topic-content { padding: 20px; display: flex; flex-direction: column; flex: 1; }
.topic-card .topic-tag { font-size: 0.75rem; color: var(--primary); font-weight: 700; }
.topic-card h3 { font-size: 1.05rem; margin: 8px 0 10px; }
.topic-card p { color: var(--text-weak); font-size: 0.88rem; flex: 1; }
.topic-card .topic-link { font-weight: 700; font-size: 0.9rem; color: var(--primary); display: inline-flex; align-items: center; gap: 6px; }
.topic-card .topic-link:hover { gap: 10px; }

/* ===== FAQ ===== */
.faq-section {
  background: var(--bg-white);
  padding: 68px 0;
  border-top: 1px solid var(--border);
}
.faq-list { max-width: 820px; margin: 0 auto; }
.faq-item {
  background: var(--bg-body);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  margin-bottom: 14px;
  padding: 22px 28px;
  transition: var(--transition);
}
.faq-item:hover { border-color: var(--primary-light); box-shadow: var(--shadow-xs); }
.faq-item h3 { font-size: 1rem; margin-bottom: 8px; display: flex; gap: 10px; align-items: flex-start; }
.faq-item h3 i { color: var(--primary); margin-top: 2px; }
.faq-item p { color: var(--text-weak); font-size: 0.93rem; margin-bottom: 0; margin-left: 24px; }

/* ===== CTA ===== */
.cta-section {
  padding: 64px 0;
  background-image: linear-gradient(135deg, rgba(15, 23, 42, 0.95), rgba(30, 58, 138, 0.9)), url('/assets/images/backpic/back-3.png');
  background-size: cover;
  background-position: center;
  color: #fff;
}
.cta-inner { text-align: center; max-width: 700px; margin: 0 auto; }
.cta-inner h2 { color: #fff; font-size: clamp(1.7rem, 2.6vw, 2.2rem); margin-bottom: 12px; }
.cta-inner p { color: rgba(255, 255, 255, 0.85); margin-bottom: 28px; }
.cta-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ===== 页脚 ===== */
.site-footer { background: var(--bg-deep); color: #94a3b8; }
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  padding: 60px 0 40px;
}
.site-footer .brand { color: #fff; }
.footer-brand p { margin-top: 16px; font-size: 0.92rem; max-width: 400px; }
.footer-col h4 { color: #fff; font-size: 1rem; margin-bottom: 18px; }
.footer-col ul { list-style: none; margin: 0; padding: 0; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col a { color: #94a3b8; font-size: 0.9rem; }
.footer-col a:hover { color: var(--primary-light); }
.footer-bottom { border-top: 1px solid rgba(148, 163, 184, 0.2); padding: 18px 0; text-align: center; }
.footer-bottom p { font-size: 0.84rem; margin: 0; color: #64748b; }

/* ===== 响应式 ===== */
@media screen and (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .article-card { padding: 32px; }
}
@media screen and (max-width: 768px) {
  .header-inner { height: 64px; }
  .main-nav {
    position: fixed;
    left: 0;
    right: 0;
    top: 64px;
    background: var(--bg-white);
    border-bottom: 1px solid var(--border);
    transform: translateY(-120%);
    transition: var(--transition);
    box-shadow: var(--shadow-md);
    padding: 16px 24px;
    border-radius: 0 0 20px 20px;
  }
  .main-nav.open { transform: translateY(0); }
  .main-nav ul { flex-direction: column; gap: 8px; }
  .main-nav a { padding: 12px 20px; }
  .nav-toggle { display: inline-flex; }
  .header-actions .btn { display: none; }
  .inner-banner { padding: 56px 0 64px; }
  .article-card { padding: 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; padding-top: 44px; }
  .footer-brand p { max-width: 100%; }
  .cta-actions { flex-direction: column; align-items: center; }
  .cta-actions .btn { width: 100%; }
}
@media screen and (max-width: 520px) {
  .container { padding: 0 16px; }
  .inner-banner h1 { font-size: 1.5rem; }
  .banner-meta { gap: 10px; font-size: 0.8rem; }
  .article-card { padding: 18px; border-radius: 16px; }
  .article-body { font-size: 0.95rem; }
  .article-body h2 { font-size: 1.2rem; }
  .feature-card { padding: 22px 18px; }
  .faq-item { padding: 18px 20px; }
  .btn { padding: 10px 22px; font-size: 0.88rem; }
  .footer-grid { gap: 24px; }
  .inner-banner { padding: 44px 0 52px; }
}

/* roulang page: category1 */
:root{
  --primary:#14517e;
  --primary-dark:#0c3554;
  --primary-light:#2c6ea8;
  --accent:#e3b143;
  --accent-light:#f2d38a;
  --bg-body:#f3f6fa;
  --bg-soft:#eaf1f8;
  --text-main:#182a3d;
  --text-muted:#5e7083;
  --white:#ffffff;
  --border:#d9e2ec;
  --radius:14px;
  --radius-lg:22px;
  --radius-sm:10px;
  --shadow-sm:0 2px 10px rgba(12,53,84,.06);
  --shadow-md:0 10px 30px rgba(12,53,84,.10);
  --shadow-lg:0 18px 48px rgba(12,53,84,.16);
  --gradient-primary:linear-gradient(135deg,#2c6ea8,#0c3554);
  --gradient-gold:linear-gradient(135deg,#f2d38a,#e3b143);
  --container-width:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;
  background:var(--bg-body);
  color:var(--text-main);
  line-height:1.7;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius)}
a{text-decoration:none;color:inherit;transition:all .25s ease}
a:hover,a:focus{outline:none}
button,input,select,textarea{font-family:inherit}
ul,ol{margin:0;padding:0}
p{margin:0 0 1rem}
h1,h2,h3,h4,h5,h6{
  margin:0 0 .6rem;
  font-weight:800;
  line-height:1.3;
  color:var(--text-main);
}
.container{max-width:var(--container-width);margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-alt{background:var(--white)}
.section-soft{background:var(--bg-soft)}
.section-head{max-width:720px;margin:0 auto 52px}
.section-head.center{text-align:center}
.section-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:700;
  letter-spacing:1px;
  color:var(--primary);
  background:rgba(20,81,126,.10);
  padding:7px 16px;
  border-radius:999px;
  margin-bottom:14px;
  text-transform:uppercase;
}
.section-head h2{font-size:2.25rem;letter-spacing:-.5px}
.section-head p{color:var(--text-muted);font-size:1.05rem;margin-bottom:0}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:13px 28px;
  border-radius:999px;
  font-weight:700;
  font-size:.95rem;
  line-height:1.2;
  border:none;
  cursor:pointer;
  transition:all .28s cubic-bezier(.4,0,.2,1);
  box-shadow:var(--shadow-sm);
}
.btn:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.btn:active{transform:translateY(0)}
.btn-primary{
  background:var(--gradient-primary);
  color:#fff;
  box-shadow:0 8px 22px rgba(20,81,126,.30);
}
.btn-primary:hover{box-shadow:0 12px 30px rgba(20,81,126,.36);color:#fff}
.btn-ghost{
  background:rgba(255,255,255,.14);
  color:#fff;
  border:1px solid rgba(255,255,255,.45);
  box-shadow:none;
  backdrop-filter:blur(6px);
}
.btn-ghost:hover{background:rgba(255,255,255,.24);color:#fff}
.btn-light{
  background:var(--white);
  color:var(--primary);
  box-shadow:0 8px 24px rgba(0,0,0,.16);
}
.btn-light:hover{background:var(--accent-light);color:var(--primary-dark)}
.btn-outline-light{
  background:transparent;
  color:#fff;
  border:2px solid rgba(255,255,255,.75);
  box-shadow:none;
}
.btn-outline-light:hover{background:rgba(255,255,255,.16);color:#fff}
.btn-sm{padding:9px 20px;font-size:.88rem}
.btn-lg{padding:16px 36px;font-size:1rem}

/* ===== Header / Nav ===== */
.site-header{
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--border);
  position:sticky;
  top:0;
  z-index:1000;
  box-shadow:0 1px 12px rgba(12,53,84,.05);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  min-height:76px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  font-size:1.32rem;
  font-weight:900;
  color:var(--primary);
  letter-spacing:-.3px;
}
.brand-icon{
  width:42px;
  height:42px;
  border-radius:13px;
  background:var(--gradient-primary);
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:1.15rem;
  box-shadow:0 6px 16px rgba(20,81,126,.28);
}
.main-nav ul{display:flex;align-items:center;list-style:none;gap:6px}
.main-nav a{
  display:block;
  padding:10px 20px;
  border-radius:999px;
  font-weight:600;
  font-size:.96rem;
  color:var(--text-main);
  transition:all .25s ease;
}
.main-nav a:hover{background:var(--bg-soft);color:var(--primary)}
.main-nav li.active a{
  background:var(--gradient-primary);
  color:#fff;
  box-shadow:0 6px 16px rgba(20,81,126,.28);
}
.header-actions{display:flex;align-items:center;gap:14px}
.nav-toggle{
  display:none;
  background:none;
  border:none;
  font-size:1.4rem;
  color:var(--primary);
  cursor:pointer;
  width:42px;
  height:42px;
  border-radius:12px;
  align-items:center;
  justify-content:center;
}
.nav-toggle:hover{background:var(--bg-soft)}

/* ===== Page Hero ===== */
.page-hero{
  position:relative;
  background:var(--primary-dark);
  color:#fff;
  padding:130px 0 120px;
  overflow:hidden;
}
.hero-bg{
  position:absolute;
  inset:0;
  background-size:cover;
  background-position:center;
  opacity:.30;
  transform:scale(1.05);
}
.page-hero::after{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(115deg,rgba(8,32,54,.96) 20%,rgba(12,53,84,.72) 55%,rgba(20,81,126,.42));
}
.page-hero .container{position:relative;z-index:2}
.page-tag{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:8px 18px;
  border-radius:999px;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.26);
  font-size:.85rem;
  font-weight:700;
  letter-spacing:1px;
  color:#fff;
  margin-bottom:22px;
  backdrop-filter:blur(4px);
}
.page-hero h1{
  font-size:3rem;
  line-height:1.2;
  letter-spacing:-1px;
  color:#fff;
  max-width:760px;
  margin-bottom:20px;
}
.page-hero p{
  font-size:1.18rem;
  color:rgba(255,255,255,.86);
  max-width:640px;
  margin-bottom:34px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px}

/* ===== Stats Strip ===== */
.stats-strip{
  background:var(--white);
  border-bottom:1px solid var(--border);
  padding:52px 0;
}
.stats-row{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:30px;
  text-align:center;
}
.stat-item{padding:16px 10px}
.stat-num{
  font-size:2.4rem;
  font-weight:900;
  color:var(--primary);
  letter-spacing:-1px;
  line-height:1.1;
  margin-bottom:4px;
}
.stat-num span{font-size:1.3rem;color:var(--accent)}
.stat-item p{color:var(--text-muted);font-size:.95rem;margin-bottom:0}

/* ===== Cards ===== */
.card{
  background:var(--white);
  border-radius:var(--radius-lg);
  padding:36px 30px;
  border:1px solid var(--border);
  box-shadow:var(--shadow-sm);
  transition:all .32s cubic-bezier(.4,0,.2,1);
  height:100%;
  position:relative;
  overflow:hidden;
}
.card::before{
  content:'';
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:4px;
  background:var(--gradient-primary);
  opacity:0;
  transition:opacity .3s;
}
.card:hover{
  transform:translateY(-8px);
  box-shadow:var(--shadow-lg);
  border-color:#c3d1df;
}
.card:hover::before{opacity:1}
.card-icon{
  width:60px;
  height:60px;
  border-radius:18px;
  background:var(--gradient-primary);
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:1.5rem;
  margin-bottom:20px;
  box-shadow:0 8px 18px rgba(20,81,126,.24);
}
.card-tag{
  display:inline-block;
  font-size:.78rem;
  font-weight:700;
  letter-spacing:.6px;
  color:var(--primary);
  background:rgba(20,81,126,.08);
  border-radius:999px;
  padding:5px 12px;
  margin-bottom:14px;
}
.card h3{font-size:1.28rem;margin-bottom:10px}
.card p{color:var(--text-muted);font-size:.96rem;margin-bottom:0}

/* ===== Steps ===== */
.steps-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:26px;
}
.step-item{
  background:var(--white);
  border-radius:var(--radius-lg);
  padding:42px 30px;
  border:1px solid var(--border);
  box-shadow:var(--shadow-sm);
  text-align:center;
  position:relative;
  transition:all .3s ease;
}
.step-item:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-md);
  border-color:#c3d1df;
}
.step-num{
  width:54px;
  height:54px;
  border-radius:50%;
  background:var(--gradient-primary);
  color:#fff;
  font-weight:900;
  font-size:1.35rem;
  display:flex;
  align-items:center;
  justify-content:center;
  margin:0 auto 22px;
  box-shadow:0 8px 18px rgba(20,81,126,.28);
}
.step-item h3{font-size:1.2rem;margin-bottom:10px}
.step-item p{color:var(--text-muted);font-size:.92rem;margin-bottom:0}

/* ===== Feature / Security ===== */
.feature-media{
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-md);
  position:relative;
}
.feature-media img{
  width:100%;
  height:460px;
  object-fit:cover;
  transition:transform .5s ease;
}
.feature-media:hover img{transform:scale(1.03)}
.guide-list{list-style:none;margin-top:30px}
.guide-list li{
  display:flex;
  gap:18px;
  align-items:flex-start;
  padding:20px 0;
  border-bottom:1px solid var(--border);
}
.guide-list li:last-child{border-bottom:none}
.guide-icon{
  width:48px;
  height:48px;
  flex-shrink:0;
  border-radius:14px;
  background:rgba(20,81,126,.09);
  color:var(--primary);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:1.2rem;
}
.guide-list strong{display:block;font-size:1.08rem;margin-bottom:4px}
.guide-list p{color:var(--text-muted);font-size:.92rem;margin-bottom:0}

/* ===== FAQ ===== */
.faq-wrap{max-width:860px;margin:0 auto}
.accordion{background:transparent;margin-bottom:0}
.accordion-item{
  background:var(--white);
  border-radius:18px;
  border:1px solid var(--border);
  box-shadow:var(--shadow-sm);
  margin-bottom:16px;
  overflow:hidden;
  transition:box-shadow .3s ease;
}
.accordion-item:hover{box-shadow:var(--shadow-md)}
.accordion-title{
  background:transparent;
  border:none;
  border-bottom:1px solid transparent;
  padding:24px 30px;
  padding-right:64px;
  font-size:1.1rem;
  font-weight:700;
  color:var(--text-main);
  position:relative;
  transition:background .25s ease;
}
.accordion-title:hover,.accordion-title:focus{
  background:var(--bg-soft);
  color:var(--primary);
}
.accordion-title::before{
  content:'\f078';
  font-family:'Font Awesome 6 Free';
  font-weight:900;
  font-size:.9rem;
  color:var(--primary);
  position:absolute;
  right:28px;
  top:50%;
  transform:translateY(-50%);
  width:32px;
  height:32px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  background:rgba(20,81,126,.08);
  transition:all .3s ease;
}
.accordion-item.is-active .accordion-title::before{
  content:'\f077';
  background:var(--primary);
  color:#fff;
}
.accordion-content{
  background:transparent;
  border:none;
  padding:0 30px 26px;
}
.accordion-content p{
  color:var(--text-muted);
  font-size:.96rem;
  margin-bottom:0;
}

/* ===== CTA Band ===== */
.cta-band{
  background:var(--gradient-primary);
  border-radius:30px;
  padding:70px 56px;
  color:#fff;
  text-align:center;
  position:relative;
  overflow:hidden;
  box-shadow:var(--shadow-lg);
}
.cta-band::before{
  content:'';
  position:absolute;
  top:-60%;
  right:-20%;
  width:420px;
  height:420px;
  border-radius:50%;
  background:rgba(255,255,255,.06);
}
.cta-band::after{
  content:'';
  position:absolute;
  bottom:-70%;
  left:-10%;
  width:360px;
  height:360px;
  border-radius:50%;
  background:rgba(227,177,67,.10);
}
.cta-band h2{
  color:#fff;
  font-size:2.1rem;
  margin-bottom:14px;
  position:relative;
  z-index:1;
}
.cta-band p{
  color:rgba(255,255,255,.86);
  font-size:1.1rem;
  margin-bottom:32px;
  position:relative;
  z-index:1;
}
.cta-actions{
  display:flex;
  justify-content:center;
  gap:16px;
  flex-wrap:wrap;
  position:relative;
  z-index:1;
}

/* ===== Footer ===== */
.site-footer{
  background:var(--primary-dark);
  color:rgba(255,255,255,.78);
  padding:64px 0 0;
  margin-top:30px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1fr .7fr .7fr;
  gap:48px;
  padding-bottom:48px;
}
.footer-brand .brand{color:#fff;font-size:1.3rem;margin-bottom:18px}
.footer-brand p{font-size:.92rem;color:rgba(255,255,255,.6);max-width:340px;margin-bottom:0}
.footer-col h4{
  color:#fff;
  font-size:1.05rem;
  margin-bottom:20px;
  font-weight:700;
}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:12px}
.footer-col a{
  color:rgba(255,255,255,.66);
  font-size:.93rem;
  transition:color .25s ease;
}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:24px 0;
  text-align:center;
}
.footer-bottom p{
  font-size:.88rem;
  color:rgba(255,255,255,.5);
  margin-bottom:0;
}

/* ===== Responsive ===== */
@media screen and (max-width:1024px){
  .page-hero h1{font-size:2.5rem}
  .section{padding:80px 0}
  .stats-row{grid-template-columns:repeat(2,1fr)}
  .steps-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media screen and (max-width:768px){
  .site-header{position:sticky}
  .main-nav{
    position:fixed;
    top:76px;
    left:0;
    right:0;
    background:var(--white);
    border-bottom:1px solid var(--border);
    box-shadow:var(--shadow-lg);
    display:none;
    padding:18px 24px;
    z-index:999;
  }
  .main-nav.open{display:block}
  .main-nav ul{flex-direction:column;gap:8px}
  .main-nav a{padding:14px 20px}
  .nav-toggle{display:flex}
  .header-actions .btn-sm{display:none}
  .page-hero{padding:100px 0 90px}
  .page-hero h1{font-size:2rem}
  .page-hero p{font-size:1.05rem}
  .hero-actions .btn{width:100%}
  .section-head h2{font-size:1.85rem}
  .steps-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .cta-band{padding:50px 28px}
  .cta-band h2{font-size:1.7rem}
  .feature-media img{height:320px}
}
@media screen and (max-width:520px){
  .container{padding:0 18px}
  .header-inner{min-height:68px}
  .brand{font-size:1.12rem}
  .brand-icon{width:38px;height:38px}
  .page-hero{padding:80px 0 72px}
  .page-hero h1{font-size:1.72rem}
  .section{padding:64px 0}
  .stats-row{grid-template-columns:1fr 1fr;gap:18px}
  .accordion-title{padding:20px 20px;padding-right:54px;font-size:1rem}
  .accordion-content{padding:0 20px 22px}
  .card{padding:28px 22px}
  .step-item{padding:32px 22px}
  .cta-band{border-radius:22px;padding:42px 20px}
  .cta-actions .btn{width:100%}
}