/* roulang page: index */
:root {
  --primary: #2E6B9E;
  --primary-dark: #24587F;
  --primary-light: #E8EFF6;
  --accent: #17A2A0;
  --accent-dark: #12807E;
  --accent-light: #E6F5F5;
  --bg: #FFFFFF;
  --bg-secondary: #F5F8FB;
  --text: #1A2E3F;
  --text-secondary: #5A6E80;
  --text-muted: #8FA1AF;
  --border: #E2E9F0;
  --shadow: 0 4px 20px rgba(30, 64, 120, 0.06);
  --shadow-hover: 0 8px 30px rgba(30, 64, 120, 0.12);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 20px;
  --radius-pill: 999px;
  --transition: 0.25s ease;
  --max-width: 1200px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text);
  background: var(--bg);
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--transition); }
ul, ol { list-style: none; }
button, input { font-family: inherit; font-size: inherit; border: none; background: none; }
button { cursor: pointer; }
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.section { padding: 90px 0; }
.section-head { text-align: center; max-width: 780px; margin: 0 auto 56px; }
.section-head h2 { font-size: 30px; font-weight: 700; line-height: 1.3; color: var(--text); margin-bottom: 16px; }
.section-head p { font-size: 16px; color: var(--text-secondary); line-height: 1.7; }
.section-eyebrow { display: inline-block; font-size: 13px; font-weight: 600; letter-spacing: 2px; color: var(--accent); background: var(--accent-light); padding: 6px 16px; border-radius: var(--radius-pill); margin-bottom: 14px; }

/* ===== Buttons ===== */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font-size: 15px; font-weight: 600; padding: 13px 30px; border-radius: var(--radius-pill); transition: all var(--transition); line-height: 1.4; border: 1px solid transparent; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(46, 107, 158, 0.25); }
.btn-secondary { background: transparent; color: var(--primary); border-color: var(--primary); }
.btn-secondary:hover { background: var(--primary-light); color: var(--primary-dark); transform: translateY(-2px); }
.btn:active { transform: scale(0.98); }
.btn-lg { padding: 16px 42px; font-size: 16px; }
.btn-sm { padding: 8px 20px; font-size: 14px; }
a:focus-visible, button:focus-visible, input:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.arrow-link { display: inline-flex; align-items: center; gap: 6px; color: var(--accent); font-weight: 600; font-size: 14px; transition: gap var(--transition); }
.arrow-link:hover { gap: 10px; color: var(--accent-dark); }
.arrow-link .arr { transition: transform var(--transition); }
.arrow-link:hover .arr { transform: translateX(3px); }

/* ===== Header / Nav ===== */
.site-header {
  position: sticky; top: 16px; z-index: 100;
  padding: 8px 0;
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 12px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
}
.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-icon { display: flex; align-items: center; justify-content: center; width: 38px; height: 38px; border-radius: 10px; background: var(--primary-light); }
.logo-text { font-size: 20px; font-weight: 700; color: var(--text); letter-spacing: 0.5px; }
.logo-text span { color: var(--primary); }
.main-nav { display: flex; align-items: center; gap: 8px; }
.nav-pill {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 16px; border-radius: 12px;
  background: var(--bg-secondary);
  font-size: 14px; font-weight: 500; color: var(--text-secondary);
  transition: all var(--transition); border: 1px solid transparent;
}
.nav-pill:hover { background: var(--primary-light); color: var(--primary); }
.nav-pill.active { background: var(--primary-light); color: var(--primary); border-color: var(--primary); font-weight: 600; }
.nav-pill svg { width: 16px; height: 16px; flex-shrink: 0; }
.header-actions { display: flex; align-items: center; gap: 12px; }
.nav-toggle { display: none; width: 40px; height: 40px; border-radius: 10px; background: var(--bg-secondary); align-items: center; justify-content: center; }
.nav-toggle:hover { background: var(--primary-light); }
.mobile-menu {
  display: none; position: fixed; top: 80px; left: 16px; right: 16px; z-index: 99;
  background: #fff; border-radius: var(--radius-lg); box-shadow: var(--shadow-hover);
  border: 1px solid var(--border); padding: 16px; flex-direction: column; gap: 8px;
}
.mobile-menu.open { display: flex; }
.mobile-menu .nav-pill { width: 100%; justify-content: flex-start; font-size: 15px; padding: 14px 16px; }
.mobile-menu .btn { width: 100%; margin-top: 8px; }

/* ===== Hero ===== */
.hero {
  position: relative;
  background: linear-gradient(135deg, #ffffff 0%, #E8EFF6 60%, #DCE9F2 100%);
  padding: 100px 0 120px;
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover; background-position: center;
}
.hero-overlay { position: absolute; inset: 0; z-index: 1; background: rgba(255,255,255,0.82); }
.hero .container { position: relative; z-index: 2; }
.hero-content { max-width: 680px; }
.hero h1 { font-size: 46px; font-weight: 700; line-height: 1.25; color: var(--text); margin-bottom: 20px; letter-spacing: 1px; }
.hero h1 .accent { color: var(--primary); }
.hero-sub { font-size: 17px; color: var(--text-secondary); line-height: 1.8; margin-bottom: 32px; max-width: 560px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-stats {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
  margin-top: 56px; max-width: 680px;
}
.hero-stat {
  background: rgba(255,255,255,0.85);
  border: 1px solid rgba(255,255,255,0.9);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(4px);
  text-align: center;
}
.hero-stat .stat-num { font-size: 28px; font-weight: 700; color: var(--primary); line-height: 1.2; }
.hero-stat .stat-label { font-size: 13px; color: var(--text-muted); margin-top: 4px; }

/* ===== Story ===== */
.story-section { background: var(--bg); }
.story-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: center; }
.story-image { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow); position: relative; }
.story-image img { width: 100%; height: 400px; object-fit: cover; }
.story-image::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 60%, rgba(26,46,63,0.3)); }
.story-content .section-eyebrow { margin-bottom: 12px; }
.story-content h2 { font-size: 30px; font-weight: 700; color: var(--text); line-height: 1.35; margin-bottom: 20px; }
.story-content p { font-size: 16px; color: var(--text-secondary); line-height: 1.8; margin-bottom: 16px; }
.story-line { width: 48px; height: 3px; background: var(--accent); border-radius: 2px; margin: 16px 0; }

/* ===== Featured Cards ===== */
.featured-section { background: var(--bg-secondary); }
.featured-grid {
  display: grid; grid-template-columns: 1.2fr 1fr; grid-template-rows: 1fr 1fr;
  gap: 24px;
}
.f-card {
  background: #fff; border-radius: var(--radius-md); overflow: hidden;
  border: 1px solid var(--border); box-shadow: var(--shadow);
  transition: all var(--transition); display: flex; flex-direction: column;
}
.f-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-4px); }
.f-card-main { grid-row: span 2; }
.f-card .card-img { position: relative; overflow: hidden; }
.f-card .card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.f-card:hover .card-img img { transform: scale(1.03); }
.f-card-main .card-img { height: 320px; }
.f-card-sub .card-img { height: 180px; }
.f-card-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.f-card .card-tag { display: inline-block; font-size: 12px; font-weight: 600; color: var(--accent); background: var(--accent-light); border-radius: var(--radius-pill); padding: 4px 14px; margin-bottom: 12px; width: fit-content; }
.f-card h3 { font-size: 18px; font-weight: 600; color: var(--text); line-height: 1.5; margin-bottom: 10px; }
.f-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; flex: 1; margin-bottom: 16px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.f-card .arrow-link { margin-top: auto; }

/* ===== News / CMS ===== */
.news-section { background: var(--bg); }
.news-list { max-width: 860px; margin: 0 auto; display: flex; flex-direction: column; gap: 16px; }
.news-card {
  display: flex; align-items: flex-start; gap: 24px;
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius-md);
  padding: 24px 28px; transition: all var(--transition);
}
.news-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); border-color: var(--primary-light); }
.news-date { flex-shrink: 0; width: 70px; text-align: center; padding: 10px 0; border-right: 2px solid var(--accent-light); }
.news-date .day { font-size: 28px; font-weight: 700; color: var(--primary); line-height: 1; display: block; }
.news-date .month { font-size: 13px; color: var(--text-muted); margin-top: 4px; text-transform: uppercase; }
.news-content { flex: 1; }
.news-tag { display: inline-block; font-size: 12px; font-weight: 600; color: var(--primary); background: var(--primary-light); border-radius: var(--radius-pill); padding: 3px 12px; margin-bottom: 8px; }
.news-content h3 { font-size: 18px; font-weight: 600; color: var(--text); margin-bottom: 8px; line-height: 1.5; }
.news-content h3 a:hover { color: var(--primary); }
.news-content p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; margin-bottom: 10px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-link { font-size: 14px; }
.empty-state {
  text-align: center; padding: 60px 20px; color: var(--text-muted);
  border: 2px dashed var(--border); border-radius: var(--radius-md);
}
.empty-state svg { width: 48px; height: 48px; margin-bottom: 12px; opacity: 0.5; }

/* ===== Advantages ===== */
.adv-section { background: var(--bg-secondary); }
.adv-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.adv-card {
  background: #fff; border-radius: var(--radius-md); border: 1px solid var(--border);
  padding: 32px 24px; text-align: center; box-shadow: var(--shadow); transition: all var(--transition);
}
.adv-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-3px); }
.adv-icon { width: 56px; height: 56px; border-radius: 14px; background: var(--primary-light); display: flex; align-items: center; justify-content: center; margin: 0 auto 18px; }
.adv-card h3 { font-size: 17px; font-weight: 600; margin-bottom: 8px; }
.adv-card p { font-size: 13px; color: var(--text-muted); line-height: 1.6; }

/* ===== Trust ===== */
.trust-section { background: var(--bg); }
.trust-bar {
  background: var(--primary-light); border-radius: var(--radius-lg);
  padding: 40px 48px; display: flex; justify-content: space-between; align-items: center;
  gap: 32px; flex-wrap: wrap;
}
.trust-item { display: flex; align-items: center; gap: 12px; }
.trust-item svg { width: 22px; height: 22px; color: var(--accent); flex-shrink: 0; }
.trust-item span { font-size: 15px; font-weight: 600; color: var(--text); }

/* ===== FAQ ===== */
.faq-section { background: var(--bg-secondary); }
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: #fff; border: 1px solid var(--border); border-radius: 12px; overflow: hidden; transition: all var(--transition); }
.faq-item.active { border-color: var(--primary); box-shadow: var(--shadow); }
.faq-question { display: flex; align-items: center; justify-content: space-between; gap: 16px; width: 100%; padding: 20px 24px; font-size: 16px; font-weight: 600; color: var(--text); text-align: left; background: transparent; transition: color var(--transition); }
.faq-question:hover { color: var(--primary); }
.faq-icon { width: 28px; height: 28px; border-radius: 50%; background: var(--primary-light); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 18px; font-weight: 400; flex-shrink: 0; transition: all var(--transition); }
.faq-item.active .faq-icon { background: var(--primary); color: #fff; transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.35s ease; }
.faq-item.active .faq-answer { max-height: 300px; }
.faq-answer p { padding: 0 24px 20px; font-size: 15px; color: var(--text-secondary); line-height: 1.8; }

/* ===== CTA ===== */
.cta-section { padding: 90px 0; }
.cta-box {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  border-radius: var(--radius-lg); padding: 64px 56px; text-align: center;
  color: #fff; position: relative; overflow: hidden;
}
.cta-box::before {
  content: ""; position: absolute; top: -60px; right: -60px; width: 200px; height: 200px;
  border-radius: 50%; background: rgba(255,255,255,0.08);
}
.cta-box::after {
  content: ""; position: absolute; bottom: -80px; left: -40px; width: 200px; height: 200px;
  border-radius: 50%; background: rgba(255,255,255,0.05);
}
.cta-box h2 { font-size: 28px; font-weight: 700; margin-bottom: 14px; position: relative; z-index: 1; }
.cta-box p { font-size: 15px; opacity: 0.9; margin-bottom: 32px; position: relative; z-index: 1; }
.cta-form { display: flex; gap: 12px; max-width: 520px; margin: 0 auto 16px; position: relative; z-index: 1; }
.cta-form input { flex: 1; padding: 14px 20px; border-radius: var(--radius-pill); border: 1px solid rgba(255,255,255,0.3); background: rgba(255,255,255,0.12); color: #fff; font-size: 15px; backdrop-filter: blur(4px); }
.cta-form input::placeholder { color: rgba(255,255,255,0.7); }
.cta-form input:focus { outline: none; border-color: #fff; background: rgba(255,255,255,0.18); }
.cta-form .btn { background: #fff; color: var(--primary); border: none; }
.cta-form .btn:hover { background: var(--primary-light); color: var(--primary-dark); }
.cta-privacy { font-size: 12px; opacity: 0.7; position: relative; z-index: 1; }

/* ===== Footer ===== */
.site-footer {
  background: #1A2E3F; color: #B0C4D8; padding: 64px 0 24px;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 48px; max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.footer-brand .logo-text { color: #fff; }
.footer-brand .logo-text span { color: #7FB3D5; }
.footer-brand p { font-size: 14px; line-height: 1.7; margin-top: 16px; color: #8FA8BF; }
.footer-col h4 { font-size: 15px; font-weight: 600; color: #fff; margin-bottom: 16px; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col a { font-size: 14px; color: #8FA8BF; transition: color var(--transition); }
.footer-col a:hover { color: #7FB3D5; }
.footer-bottom {
  max-width: var(--max-width); margin: 48px auto 0; padding: 20px 24px 0;
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px;
  font-size: 13px; color: #678399;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .featured-grid { grid-template-columns: 1fr 1fr; grid-template-rows: auto; }
  .f-card-main { grid-row: span 1; }
  .f-card-main .card-img { height: 240px; }
  .adv-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero h1 { font-size: 38px; }
}
@media (max-width: 768px) {
  .main-nav, .header-actions .btn { display: none; }
  .nav-toggle { display: flex; }
  .hero { padding: 80px 0 100px; }
  .hero h1 { font-size: 32px; }
  .hero-stats { grid-template-columns: 1fr; gap: 12px; }
  .hero-stat { padding: 16px; }
  .story-grid { grid-template-columns: 1fr; gap: 40px; }
  .story-image img { height: 280px; }
  .featured-grid { grid-template-columns: 1fr; }
  .news-card { flex-direction: column; gap: 12px; }
  .news-date { border-right: none; border-bottom: 2px solid var(--accent-light); width: 100%; text-align: left; padding: 0 0 8px; display: flex; align-items: baseline; gap: 8px; }
  .news-date .day { font-size: 18px; }
  .news-date .month { margin-top: 0; }
  .trust-bar { padding: 28px 20px; justify-content: center; }
  .cta-box { padding: 48px 24px; }
  .cta-form { flex-direction: column; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}
@media (max-width: 520px) {
  .section { padding: 60px 0; }
  .hero { padding: 60px 0 80px; }
  .hero h1 { font-size: 28px; }
  .hero-sub { font-size: 15px; }
  .hero-actions .btn { width: 100%; }
  .btn { padding: 12px 24px; font-size: 14px; }
  .section-head h2 { font-size: 24px; }
  .adv-grid { grid-template-columns: 1fr; }
  .f-card-main .card-img { height: 200px; }
  .f-card-sub .card-img { height: 160px; }
  .faq-question { font-size: 15px; padding: 16px; }
  .faq-answer p { padding: 0 16px 16px; }
  .cta-box h2 { font-size: 22px; }
  .header-inner { padding: 10px 16px; }
  .logo-text { font-size: 17px; }
}

/* roulang page: category1 */
:root {
    --primary: #2E6B9E;
    --primary-dark: #22537C;
    --primary-deeper: #1B4264;
    --primary-light: #F0F5FA;
    --primary-soft: #E8EFF6;
    --accent: #159A8B;
    --accent-dark: #117F73;
    --accent-soft: #E4F3F1;
    --bg: #FFFFFF;
    --bg-soft: #F5F8FB;
    --text: #1A2E3F;
    --text-secondary: #5A6E80;
    --text-muted: #8FA1AF;
    --border: #E2E9F0;
    --radius-sm: 8px;
    --radius: 16px;
    --radius-lg: 20px;
    --shadow: 0 4px 20px rgba(30, 64, 120, 0.06);
    --shadow-hover: 0 8px 24px rgba(30, 64, 120, 0.08);
    --font: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
    --ease: 0.2s ease;
}

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

html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.8;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}

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

a {
    color: var(--accent);
    text-decoration: none;
    transition: color var(--ease), border-color var(--ease);
}

a:hover { color: var(--accent-dark); text-decoration: underline; text-underline-offset: 4px; }

button,
input,
textarea {
    font-family: var(--font);
    font-size: 1rem;
}

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

/* ========== Header ========== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 14px 0;
    background: rgba(255, 255, 255, 0.92);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid rgba(226, 233, 240, 0.8);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--text);
    white-space: nowrap;
}

.logo:hover { text-decoration: none; color: var(--text); }

.logo-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: var(--primary-light);
    border: 1px solid var(--border);
    flex-shrink: 0;
}

.logo-text {
    font-size: 17px;
    font-weight: 700;
    letter-spacing: .5px;
    color: var(--text);
}

.logo-text span { color: var(--primary); }

.main-nav {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.nav-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 16px;
    border-radius: 12px;
    background: var(--primary-light);
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    line-height: 1;
    border: 1px solid transparent;
    transition: background var(--ease), color var(--ease), border-color var(--ease), box-shadow var(--ease);
    white-space: nowrap;
}

.nav-pill svg { width: 15px; height: 15px; }

.nav-pill:hover {
    background: var(--primary-soft);
    color: var(--primary);
    text-decoration: none;
}

.nav-pill.active {
    background: var(--bg);
    color: var(--primary);
    border-color: var(--primary);
    box-shadow: 0 0 0 1px rgba(46, 107, 158, 0.12);
}

.header-actions { display: flex; align-items: center; gap: 10px; }

.nav-toggle {
    display: none;
    background: none;
    border: 1px solid var(--border);
    border-radius: 10px;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    cursor: pointer;
    transition: background var(--ease), color var(--ease);
}

.nav-toggle:hover { background: var(--primary-light); color: var(--primary); }

/* ========== Buttons ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border-radius: 999px;
    padding: 14px 28px;
    font-size: 15px;
    font-weight: 600;
    line-height: 1;
    cursor: pointer;
    border: 1px solid transparent;
    transition: background var(--ease), border-color var(--ease), color var(--ease), box-shadow var(--ease), transform var(--ease);
}

.btn:hover { text-decoration: none; transform: translateY(-2px); }

.btn:active { transform: scale(0.98); }

.btn-primary {
    background: var(--primary);
    color: #fff;
}

.btn-primary:hover {
    background: var(--primary-dark);
    color: #fff;
    box-shadow: 0 6px 18px rgba(46, 107, 158, 0.28);
}

.btn-secondary {
    background: var(--bg);
    color: var(--primary);
    border-color: var(--primary);
}

.btn-secondary:hover {
    background: var(--primary-light);
    color: var(--primary-dark);
}

.btn-sm { padding: 11px 20px; font-size: 14px; }

.btn .arrow {
    font-style: normal;
    font-size: 16px;
    transition: transform var(--ease);
}

.btn:hover .arrow { transform: translateX(3px); }

/* ========== Hero ========== */
.hero {
    position: relative;
    background: linear-gradient(180deg, #F5F8FB 0%, #FFFFFF 100%), url('/assets/images/backpic/back-1.png') center/cover;
    background-repeat: no-repeat;
    background-size: cover;
    border-bottom: 1px solid var(--border);
    overflow: hidden;
}

.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.82);
    pointer-events: none;
}

.hero-inner {
    position: relative;
    padding: 88px 24px 72px;
    max-width: 1200px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 16px;
    background: var(--accent-soft);
    color: var(--accent-dark);
    font-size: 13px;
    font-weight: 600;
    border-radius: 999px;
    margin-bottom: 22px;
}

.hero h1 {
    margin: 0 0 14px;
    font-size: 42px;
    line-height: 1.25;
    font-weight: 700;
    color: var(--text);
    max-width: 700px;
}

.hero h1 .accent { color: var(--primary); }

.hero-sub {
    margin: 0 0 32px;
    font-size: 17px;
    line-height: 1.8;
    color: var(--text-secondary);
    max-width: 580px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-bottom: 48px;
}

.hero-metrics {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    max-width: 720px;
}

.metric-card {
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px 20px;
    box-shadow: var(--shadow);
    transition: box-shadow var(--ease), transform var(--ease);
}

.metric-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}

.metric-num {
    font-size: 26px;
    font-weight: 700;
    color: var(--primary);
    line-height: 1.2;
    margin-bottom: 4px;
}

.metric-label {
    font-size: 13px;
    color: var(--text-secondary);
}

/* ========== Sections ========== */
.section {
    padding: 88px 0;
}

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

.section-head {
    max-width: 720px;
    margin-bottom: 44px;
}

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

.section-kicker {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    color: var(--accent-dark);
    background: var(--accent-soft);
    padding: 6px 14px;
    border-radius: 999px;
    margin-bottom: 14px;
}

.section-head h2 {
    margin: 0 0 12px;
    font-size: 30px;
    line-height: 1.35;
    font-weight: 700;
    color: var(--text);
}

.section-head p {
    margin: 0;
    font-size: 16px;
    color: var(--text-secondary);
}

/* ========== Feature showcase ========== */
.feature-grid {
    display: grid;
    grid-template-columns: 1.05fr 1fr;
    gap: 24px;
    align-items: stretch;
}

.feature-showcase {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    transition: box-shadow var(--ease), transform var(--ease);
}

.feature-showcase:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-3px);
}

.feature-showcase img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
}

.feature-showcase-body {
    padding: 28px;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.feature-showcase-body h3 {
    margin: 0 0 10px;
    font-size: 22px;
    font-weight: 700;
    color: var(--text);
}

.feature-showcase-body p {
    margin: 0 0 18px;
    font-size: 15px;
    color: var(--text-secondary);
}

.feature-points {
    list-style: none;
    padding: 0;
    margin: 0 0 20px;
    display: grid;
    gap: 10px;
}

.feature-points li {
    display: flex;
    gap: 8px;
    align-items: flex-start;
    font-size: 14px;
    color: var(--text-secondary);
}

.feature-points .dot {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--accent-soft);
    color: var(--accent-dark);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 700;
    flex-shrink: 0;
    margin-top: 3px;
}

.feature-link {
    font-size: 14px;
    font-weight: 600;
    color: var(--accent);
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.feature-cards {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

.feature-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
    display: flex;
    gap: 16px;
    align-items: flex-start;
    transition: box-shadow var(--ease), transform var(--ease), border-color var(--ease);
}

.feature-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
    border-color: rgba(46, 107, 158, 0.3);
}

.feature-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.feature-icon svg { width: 21px; height: 21px; }

.feature-card h4 {
    margin: 0 0 6px;
    font-size: 16px;
    font-weight: 700;
    color: var(--text);
}

.feature-card p {
    margin: 0;
    font-size: 14px;
    line-height: 1.7;
    color: var(--text-secondary);
}

/* ========== Scenarios ========== */
.scenario-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.scenario-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: box-shadow var(--ease), transform var(--ease);
}

.scenario-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}

.scenario-card img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
}

.scenario-card-body {
    padding: 24px 26px 28px;
}

.scenario-card-body h3 {
    margin: 0 0 8px;
    font-size: 19px;
    font-weight: 700;
    color: var(--text);
}

.scenario-card-body p {
    margin: 0;
    font-size: 14px;
    color: var(--text-secondary);
}

.scenario-card.wide {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    align-items: stretch;
}

.scenario-card.wide img {
    height: 100%;
    aspect-ratio: auto;
}

.scenario-card.wide .scenario-card-body {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* ========== Process ========== */
.process-list {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    counter-reset: step;
}

.process-item {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 26px 22px;
    box-shadow: var(--shadow);
    position: relative;
    transition: box-shadow var(--ease), transform var(--ease);
}

.process-item:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-3px);
}

.step-num {
    font-size: 13px;
    font-weight: 700;
    color: var(--accent-dark);
    background: var(--accent-soft);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: 10px;
    margin-bottom: 16px;
}

.process-item h4 {
    margin: 0 0 8px;
    font-size: 16px;
    font-weight: 700;
    color: var(--text);
}

.process-item p {
    margin: 0;
    font-size: 14px;
    color: var(--text-secondary);
}

/* ========== CTA ========== */
.cta-box {
    background: linear-gradient(135deg, #EAF2F8 0%, #E2F1F4 55%, #D9EFEA 100%);
    border: 1px solid rgba(46, 107, 158, 0.14);
    border-radius: 24px;
    padding: 64px 48px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-box::after {
    content: "";
    position: absolute;
    right: -40px;
    bottom: -40px;
    width: 180px;
    height: 180px;
    background: rgba(21, 154, 139, 0.08);
    border-radius: 50%;
}

.cta-box h2 {
    margin: 0 0 12px;
    font-size: 30px;
    font-weight: 700;
    color: var(--text);
}

.cta-box p {
    margin: 0 auto 28px;
    font-size: 16px;
    color: var(--text-secondary);
    max-width: 560px;
}

.cta-actions {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 14px;
}

/* ========== FAQ ========== */
.faq-list {
    max-width: 820px;
    margin: 0 auto;
    display: grid;
    gap: 14px;
}

.faq-item {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 14px;
    overflow: hidden;
    transition: border-color var(--ease), box-shadow var(--ease);
}

.faq-item:hover { border-color: rgba(46, 107, 158, 0.25); }

.faq-item.open { border-color: var(--primary); box-shadow: var(--shadow); }

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    width: 100%;
    background: none;
    border: none;
    padding: 20px 22px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
    cursor: pointer;
    text-align: left;
}

.faq-question:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }

.faq-icon {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--primary-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 400;
    flex-shrink: 0;
    transition: background var(--ease), color var(--ease), transform var(--ease);
}

.faq-item.open .faq-icon {
    background: var(--primary);
    color: #fff;
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    padding: 0 22px;
    transition: max-height 0.25s ease, padding 0.25s ease;
}

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

.faq-answer p {
    margin: 0;
    font-size: 15px;
    color: var(--text-secondary);
    border-top: 1px solid var(--border);
    padding-top: 14px;
}

/* ========== Footer ========== */
.site-footer {
    background: #1F3E5A;
    color: #B7C9D8;
    margin-top: 0;
    padding: 60px 24px 28px;
}

.footer-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 40px;
    padding-bottom: 36px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.footer-brand .logo { color: #fff; }

.footer-brand .logo-text span { color: #8DC5E8; }

.footer-brand p {
    margin: 18px 0 0;
    font-size: 14px;
    line-height: 1.8;
    color: #A9BFD2;
    max-width: 280px;
}

.footer-col h4 {
    margin: 0 0 16px;
    font-size: 15px;
    font-weight: 700;
    color: #E8F1F8;
}

.footer-col ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 9px;
}

.footer-col a {
    font-size: 14px;
    color: #A9BFD2;
    transition: color var(--ease);
}

.footer-col a:hover { color: #4FD1C5; text-decoration: none; }

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 24px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 8px;
    font-size: 13px;
    color: #8FA8BF;
}

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

/* ========== Responsive ========== */
@media (max-width: 1024px) {
    .main-nav { gap: 6px; }
    .nav-pill { padding: 8px 12px; font-size: 13px; }
    .feature-grid { grid-template-columns: 1fr; }
    .process-list { grid-template-columns: repeat(2, 1fr); }
    .scenario-card.wide { grid-template-columns: 1fr; }
    .scenario-card.wide img { aspect-ratio: 16 / 9; height: auto; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .main-nav {
        position: absolute;
        top: calc(100% + 8px);
        left: 16px;
        right: 16px;
        flex-direction: column;
        align-items: stretch;
        background: var(--bg);
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
        padding: 14px;
        box-shadow: var(--shadow-hover);
        display: none;
        gap: 10px;
    }

    .main-nav.open { display: flex; }

    .nav-pill { padding: 13px 16px; }

    .nav-toggle { display: inline-flex; }

    .hero-inner { padding: 64px 20px 52px; }

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

    .hero-sub { font-size: 15px; }

    .hero-metrics { grid-template-columns: 1fr; }

    .section { padding: 60px 0; }

    .section-head h2 { font-size: 25px; }

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

    .scenario-card.wide { grid-column: auto; }

    .process-list { grid-template-columns: 1fr; }

    .cta-box { padding: 44px 22px; border-radius: 18px; }

    .cta-box h2 { font-size: 24px; }

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

    .footer-bottom { flex-direction: column; text-align: center; }
}

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

    .header-inner { gap: 10px; }

    .logo-text { font-size: 15px; }

    .hero h1 { font-size: 27px; }

    .btn { width: 100%; }

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

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

    .metric-card { padding: 15px 16px; }

    .feature-card { flex-direction: column; }

    .feature-icon { width: 40px; height: 40px; }
}

/* roulang page: article */
:root {
  --primary: #2E6B9E;
  --primary-dark: #265A84;
  --primary-deep: #1F4E70;
  --primary-light: #F0F5FA;
  --primary-soft: #E8EFF6;
  --accent: #17A2A0;
  --accent-dark: #159A8B;
  --accent-soft: #E6F6F5;
  --bg: #F5F8FB;
  --white: #FFFFFF;
  --text-main: #1A2E3F;
  --text-sub: #5A6E80;
  --text-muted: #8FA1AF;
  --border: #E2E9F0;
  --shadow: 0 4px 16px rgba(30, 64, 120, 0.04);
  --shadow-hover: 0 8px 24px rgba(30, 64, 120, 0.08);
  --shadow-lg: 0 12px 32px rgba(30, 64, 120, 0.10);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 20px;
  --radius-full: 999px;
  --container: 1200px;
  --font: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
}

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

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

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text-main);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a {
  color: var(--accent);
  text-decoration: none;
  transition: color .2s ease;
}

a:hover {
  color: var(--accent-dark);
}

ul, ol {
  list-style: none;
}

button, input, textarea {
  font-family: inherit;
  font-size: 100%;
  border: none;
  background: none;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.2;
  padding: 14px 28px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all .2s ease;
  white-space: nowrap;
  user-select: none;
}

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

.btn:active {
  transform: scale(0.98);
}

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

.btn-primary:hover {
  background: var(--primary-dark);
  color: var(--white);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(46, 107, 158, 0.25);
}

.btn-ghost {
  background: var(--white);
  color: var(--primary);
  border: 1.5px solid var(--border);
}

.btn-ghost:hover {
  background: var(--primary-light);
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-1px);
}

.btn-sm {
  padding: 10px 20px;
  font-size: 14px;
}

.btn-lg {
  padding: 16px 36px;
  font-size: 16px;
}

.btn .arrow {
  transition: transform .2s ease;
}

.btn:hover .arrow {
  transform: translateX(3px);
}

/* ===== 徽章 ===== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
  line-height: 1.4;
}

.badge-primary {
  background: var(--primary-light);
  color: var(--primary);
}

.badge-accent {
  background: var(--accent-soft);
  color: var(--accent-dark);
}

/* ===== Header 导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 16px 0;
  background: rgba(245, 248, 251, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: box-shadow .3s ease;
}

.site-header.scrolled {
  box-shadow: 0 4px 24px rgba(30, 64, 120, 0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  background: var(--white);
  border-radius: 14px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  flex-shrink: 0;
}

.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: 0.5px;
}

.logo-text span {
  color: var(--primary);
  font-weight: 600;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  justify-content: center;
}

.nav-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 14px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-sub);
  background: transparent;
  transition: all .2s ease;
  border: 1.5px solid transparent;
  line-height: 1.4;
}

.nav-pill svg {
  width: 17px;
  height: 17px;
  flex-shrink: 0;
  opacity: 0.8;
}

.nav-pill:hover {
  background: var(--primary-light);
  color: var(--primary);
  border-color: transparent;
}

.nav-pill.active {
  background: var(--white);
  color: var(--primary);
  border-color: var(--primary);
  box-shadow: 0 2px 8px rgba(46, 107, 158, 0.08);
  font-weight: 600;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--white);
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-main);
  transition: all .2s ease;
}

.nav-toggle:hover {
  background: var(--primary-light);
  border-color: var(--primary);
  color: var(--primary);
}

.mobile-menu {
  display: none;
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  margin: 12px 16px 0;
  padding: 16px;
}

.mobile-menu.open {
  display: block;
}

.mobile-menu .nav-pill {
  display: flex;
  width: 100%;
  padding: 14px 16px;
  margin-bottom: 8px;
  border-radius: 14px;
  background: var(--bg);
  color: var(--text-main);
}

.mobile-menu .nav-pill:last-child {
  margin-bottom: 0;
}

.mobile-menu .nav-pill.active {
  background: var(--primary-light);
  border-color: var(--primary);
  color: var(--primary);
}

/* ===== 面包屑 ===== */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 24px 0 12px;
  font-size: 14px;
  color: var(--text-muted);
}

.breadcrumb a {
  color: var(--text-muted);
  transition: color .2s ease;
}

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

.breadcrumb .divider {
  color: var(--border);
}

.breadcrumb .current {
  color: var(--text-sub);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 260px;
}

/* ===== 文章主体 ===== */
.article-main {
  padding: 30px 0 80px;
}

.article-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  padding: 48px 56px;
  margin-top: 12px;
}

.article-head {
  margin-bottom: 40px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border);
}

.article-head .badge {
  margin-bottom: 18px;
}

.article-head h1 {
  font-size: 34px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--text-main);
  margin-bottom: 20px;
  letter-spacing: 0.2px;
}

.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 18px;
  font-size: 14px;
  color: var(--text-muted);
}

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

.meta-item svg {
  width: 16px;
  height: 16px;
  opacity: 0.7;
}

.article-content {
  max-width: 780px;
  line-height: 1.8;
  font-size: 16px;
  color: var(--text-main);
}

.article-content p {
  margin-bottom: 1.6em;
}

.article-content h2 {
  font-size: 24px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--text-main);
  margin: 2em 0 0.8em;
  padding-bottom: 0.4em;
  border-bottom: 2px solid var(--primary-light);
}

.article-content h3 {
  font-size: 19px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--text-main);
  margin: 1.8em 0 0.6em;
}

.article-content h4 {
  font-size: 17px;
  font-weight: 600;
  margin: 1.5em 0 0.5em;
}

.article-content ul,
.article-content ol {
  margin: 0 0 1.6em 1.2em;
}

.article-content ul li,
.article-content ol li {
  margin-bottom: 0.5em;
  padding-left: 0.3em;
  line-height: 1.8;
}

.article-content ul {
  list-style: none;
  padding-left: 0;
}

.article-content ul li {
  position: relative;
  padding-left: 22px;
}

.article-content ul li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.72em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
}

.article-content ol {
  list-style: decimal;
}

.article-content ol li {
  padding-left: 4px;
}

.article-content a {
  color: var(--accent);
  font-weight: 500;
  border-bottom: 1px solid transparent;
  transition: border-color .2s ease;
}

.article-content a:hover {
  border-bottom-color: var(--accent);
}

.article-content blockquote {
  border-left: 4px solid var(--accent);
  background: var(--primary-light);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 20px 24px;
  margin: 2em 0;
  color: var(--text-sub);
  font-style: normal;
}

.article-content blockquote p {
  margin-bottom: 0.5em;
}

.article-content blockquote p:last-child {
  margin-bottom: 0;
}

.article-content img {
  width: auto;
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  margin: 2em auto;
  box-shadow: var(--shadow);
}

.article-content pre {
  background: var(--primary-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 20px 24px;
  overflow-x: auto;
  margin: 2em 0;
  line-height: 1.6;
  font-size: 14px;
  color: var(--text-main);
}

.article-content code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  background: var(--primary-light);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.9em;
  color: var(--primary-deep);
}

.article-content pre code {
  background: transparent;
  padding: 0;
  color: inherit;
}

.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 2em 0;
  font-size: 15px;
  line-height: 1.6;
}

.article-content th {
  background: var(--primary-light);
  color: var(--text-main);
  font-weight: 600;
  text-align: left;
  padding: 12px 16px;
  border: 1px solid var(--border);
}

.article-content td {
  padding: 12px 16px;
  border: 1px solid var(--border);
  background: var(--white);
}

.article-content hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2.5em 0;
}

/* ===== 相关推荐 ===== */
.related-wrap {
  margin-top: 48px;
  padding-top: 36px;
  border-top: 1px solid var(--border);
}

.related-wrap h2 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
}

.related-sub {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.related-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  transition: all .2s ease;
}

.related-card:hover {
  background: var(--white);
  border-color: var(--primary);
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.related-card .thumb {
  width: 100%;
  height: 90px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--primary-light);
  position: relative;
}

.related-card .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .3s ease;
}

.related-card:hover .thumb img {
  transform: scale(1.03);
}

.related-card .r-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-card .r-date {
  font-size: 12px;
  color: var(--text-muted);
}

.related-card .r-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
}

.related-card .r-link:hover {
  color: var(--primary);
}

/* ===== 返回/CTA ===== */
.article-back {
  margin-top: 40px;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px;
}

/* ===== CTA 区 ===== */
.article-cta {
  margin-top: 60px;
  background: linear-gradient(135deg, var(--primary-light) 0%, #F0FAF8 55%, var(--accent-soft) 100%);
  border-radius: var(--radius-lg);
  padding: 48px 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
  border: 1px solid var(--border);
}

.article-cta h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
}

.article-cta p {
  font-size: 15px;
  color: var(--text-sub);
  max-width: 520px;
}

.article-cta .btn {
  flex-shrink: 0;
}

/* ===== 内容未找到 ===== */
.not-found {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 80px 40px;
  text-align: center;
}

.not-found .nf-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 24px;
  background: var(--primary-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
}

.not-found h1 {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 12px;
}

.not-found p {
  font-size: 16px;
  color: var(--text-sub);
  margin-bottom: 28px;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--text-main);
  color: #B7C6D3;
  padding: 72px 24px 32px;
  margin-top: 40px;
}

.footer-grid {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 48px;
}

.footer-brand .logo {
  margin-bottom: 18px;
}

.footer-brand .logo-icon {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.12);
}

.footer-brand .logo-text {
  color: var(--white);
}

.footer-brand .logo-text span {
  color: #7FB3D5;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: #8FA8BF;
  max-width: 320px;
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 18px;
  letter-spacing: 0.5px;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col a {
  font-size: 14px;
  color: #8FA8BF;
  transition: color .2s ease;
}

.footer-col a:hover {
  color: #7FB3D5;
}

.footer-bottom {
  max-width: var(--container);
  margin: 48px auto 0;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: #6B8294;
}

/* ===== 响应式 ===== */
@media (max-width: 1023px) {
  .header-inner {
    gap: 16px;
  }

  .main-nav {
    display: none;
  }

  .header-actions .btn-primary {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

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

  .related-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .related-card .thumb {
    height: 140px;
  }

  .article-card {
    padding: 36px 32px;
  }

  .article-cta {
    padding: 36px 32px;
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 767px) {
  .container {
    padding: 0 16px;
  }

  .article-main {
    padding: 16px 0 56px;
  }

  .article-card {
    padding: 24px 20px;
    border-radius: 16px;
  }

  .article-head h1 {
    font-size: 26px;
    line-height: 1.35;
  }

  .article-meta {
    gap: 10px;
    font-size: 13px;
    flex-direction: column;
    align-items: flex-start;
  }

  .article-content {
    font-size: 15px;
    line-height: 1.75;
  }

  .article-content h2 {
    font-size: 20px;
  }

  .article-content h3 {
    font-size: 17px;
  }

  .article-content blockquote {
    padding: 16px 18px;
  }

  .article-content table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }

  .article-content img {
    border-radius: 12px;
  }

  .breadcrumb {
    padding: 16px 0 8px;
    font-size: 13px;
  }

  .breadcrumb .current {
    max-width: 160px;
  }

  .related-wrap h2 {
    font-size: 18px;
  }

  .related-card .thumb {
    height: 120px;
  }

  .article-cta {
    padding: 28px 20px;
    border-radius: 16px;
  }

  .article-cta h2 {
    font-size: 19px;
  }

  .not-found {
    padding: 56px 20px;
  }

  .not-found h1 {
    font-size: 24px;
  }

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

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .site-footer {
    padding: 48px 16px 24px;
  }
}

@media (max-width: 480px) {
  .btn {
    width: 100%;
  }

  .article-head h1 {
    font-size: 23px;
  }

  .article-meta {
    font-size: 12px;
  }

  .header-inner {
    padding: 4px 0;
  }

  .logo-text {
    font-size: 17px;
  }

  .logo-icon {
    width: 38px;
    height: 38px;
    border-radius: 12px;
  }
}

/* ===== 打印样式 ===== */
@media print {
  .site-header, .site-footer, .article-back, .related-wrap, .article-cta {
    display: none !important;
  }

  .article-main {
    padding: 0;
  }

  .article-card {
    box-shadow: none;
    border: none;
    padding: 20px;
  }
}

/* roulang page: category2 */
:root {
  --primary: #2E6B9E;
  --primary-dark: #23577F;
  --primary-light: #E8EFF6;
  --accent: #159A8B;
  --accent-light: rgba(21, 154, 139, 0.12);
  --bg: #FFFFFF;
  --bg-soft: #F5F8FB;
  --text: #1A2E3F;
  --text-secondary: #5A6E80;
  --text-muted: #8FA1AF;
  --border: #E2E9F0;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 20px;
  --shadow: 0 4px 16px rgba(30, 64, 120, 0.04);
  --shadow-hover: 0 8px 24px rgba(30, 64, 120, 0.08);
  --transition: all 0.2s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

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

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

a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

button,
input {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
  background: none;
}

ul,
ol {
  list-style: none;
}

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

.section {
  padding: 88px 0;
}

.section-head {
  max-width: 680px;
  margin-bottom: 48px;
}

.section-head h2 {
  font-size: 30px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text);
  letter-spacing: 0.5px;
}

.section-head h2 span {
  color: var(--accent);
}

.section-head p {
  margin-top: 16px;
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.8;
}

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

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 16px;
  z-index: 100;
  padding: 0;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 12px 16px 12px 20px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  gap: 16px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  text-decoration: none !important;
}

.logo-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--bg-soft);
  border-radius: 12px;
  border: 1px solid var(--border);
}

.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.logo-text span {
  color: var(--accent);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: nowrap;
}

.nav-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  background: var(--bg-soft);
  border: 1px solid transparent;
  border-radius: 12px;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  transition: var(--transition);
  white-space: nowrap;
}

.nav-pill svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.nav-pill:hover {
  background: var(--primary-light);
  color: var(--primary);
  text-decoration: none;
  border-color: rgba(46, 107, 158, 0.15);
}

.nav-pill.active {
  background: var(--primary-light);
  color: var(--primary);
  border-color: var(--primary);
  font-weight: 600;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg-soft);
  color: var(--text);
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
}

.nav-toggle:hover {
  background: var(--primary-light);
  color: var(--primary);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.2;
  cursor: pointer;
  text-decoration: none !important;
  transition: var(--transition);
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(46, 107, 158, 0.22);
}

.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(46, 107, 158, 0.28);
}

.btn-primary:active {
  transform: scale(0.98);
}

.btn-outline {
  background: #fff;
  color: var(--primary);
  border-color: var(--primary);
}

.btn-outline:hover {
  background: var(--primary-light);
  color: var(--primary);
  border-color: var(--primary-dark);
  transform: translateY(-1px);
}

.btn-light {
  background: #fff;
  color: var(--primary);
}

.btn-light:hover {
  background: var(--bg-soft);
  color: var(--primary-dark);
}

.btn-sm {
  padding: 10px 20px;
  font-size: 14px;
}

.btn:focus-visible,
a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  padding: 96px 0 72px;
  background: linear-gradient(180deg, var(--bg-soft) 0%, #ffffff 100%);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  opacity: 0.16;
  z-index: 0;
}

.hero-inner {
  position: relative;
  z-index: 1;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 999px;
  background: var(--accent-light);
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.3px;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: 44px;
  font-weight: 700;
  line-height: 1.22;
  color: var(--text);
  max-width: 640px;
  margin-bottom: 20px;
}

.hero h1 .accent {
  color: var(--accent);
}

.hero-desc {
  font-size: 17px;
  line-height: 1.8;
  color: var(--text-secondary);
  max-width: 620px;
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 52px;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  max-width: 680px;
}

.metric-card {
  display: flex;
  align-items: center;
  gap: 14px;
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(6px);
  transition: var(--transition);
}

.metric-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.metric-card .icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.metric-card .icon svg {
  width: 22px;
  height: 22px;
}

.metric-card .text strong {
  display: block;
  font-size: 16px;
  color: var(--text);
  line-height: 1.4;
}

.metric-card .text span {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ===== Feature Section ===== */
.feature-section {
  background: var(--bg);
}

.feature-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr 1fr;
  grid-template-rows: auto auto;
  gap: 24px;
}

.feature-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 32px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(46, 107, 158, 0.2);
}

.feature-card.feature-lg {
  grid-row: span 2;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 0;
  overflow: hidden;
}

.feature-lg .feature-img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  border-bottom: 1px solid var(--border);
}

.feature-lg .feature-body {
  padding: 32px;
}

.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  transition: var(--transition);
}

.feature-card:hover .feature-icon {
  background: var(--primary);
  color: #fff;
}

.feature-icon svg {
  width: 26px;
  height: 26px;
}

.feature-card h3 {
  font-size: 19px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 12px;
  line-height: 1.4;
}

.feature-card p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.feature-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
}

.feature-link:hover {
  text-decoration: underline;
  text-underline-offset: 4px;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 5px 12px;
  border-radius: 999px;
  background: var(--accent-light);
  color: var(--accent);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.4px;
}

.badge-blue {
  background: var(--primary-light);
  color: var(--primary);
}

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

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

.scenario-img-wrap {
  position: relative;
}

.scenario-img-wrap img {
  width: 100%;
  border-radius: var(--radius-lg);
  object-fit: cover;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-hover);
  aspect-ratio: 4 / 3;
}

.scenario-img-wrap::after {
  content: "";
  position: absolute;
  inset: 20px -20px -20px 20px;
  background: var(--primary-light);
  border-radius: var(--radius-lg);
  z-index: -1;
}

.scenario-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.scenario-item {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  padding: 20px 24px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.scenario-item:hover {
  box-shadow: var(--shadow-hover);
  transform: translateX(4px);
}

.scenario-item .num {
  font-size: 22px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1.3;
  min-width: 28px;
}

.scenario-item h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--text);
}

.scenario-item p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ===== Process Section ===== */
.process-section {
  background: #fff;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.process-card {
  position: relative;
  padding: 40px 28px 28px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  text-align: left;
  transition: var(--transition);
  overflow: hidden;
}

.process-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0;
  transition: var(--transition);
}

.process-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}

.process-card:hover::before {
  opacity: 1;
}

.process-step {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 20px;
}

.process-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 10px;
}

.process-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.75;
}

/* ===== Metrics / Trust ===== */
.trust-section {
  background: var(--primary-light);
}

.trust-banner {
  background: linear-gradient(120deg, #EAF1F8, #E6F4F2);
  border: 1px solid rgba(46, 107, 158, 0.1);
  border-radius: var(--radius-lg);
  padding: 48px 56px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}

.trust-item .num {
  font-size: 32px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.3;
}

.trust-item .label {
  font-size: 14px;
  color: var(--text-secondary);
  margin-top: 6px;
}

.trust-item .desc {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 2px;
}

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

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

.faq-item {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #fff;
  margin-bottom: 16px;
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: rgba(46, 107, 158, 0.25);
  box-shadow: var(--shadow);
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  transition: var(--transition);
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

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

.faq-item .faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--bg-soft);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: var(--transition);
}

.faq-item .faq-icon svg {
  width: 14px;
  height: 14px;
  transition: transform 0.25s ease;
}

.faq-item[open] .faq-icon {
  background: var(--primary);
  color: #fff;
  transform: rotate(45deg);
}

.faq-content {
  padding: 0 24px 22px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-secondary);
  border-top: 1px dashed var(--border);
  margin: 0 24px;
  padding-left: 0;
  padding-right: 0;
}

/* ===== CTA ===== */
.cta-section {
  background: linear-gradient(120deg, var(--primary) 0%, #3D7FA6 100%);
  padding: 72px 0;
}

.cta-wrap {
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
}

.cta-wrap h2 {
  font-size: 30px;
  color: #fff;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 16px;
}

.cta-wrap p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.8;
  margin-bottom: 32px;
}

.cta-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

/* ===== Footer ===== */
.site-footer {
  background: #1E3A54;
  color: #C7D5E0;
  padding: 64px 0 32px;
}

.footer-grid {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 48px;
}

.footer-brand .logo .logo-text {
  color: #EAF1F8;
}

.footer-brand .logo .logo-text span {
  color: #6FC1B8;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: #A9BFD2;
  margin-top: 20px;
  max-width: 320px;
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 20px;
  letter-spacing: 0.5px;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  color: #A9BFD2;
  font-size: 14px;
  text-decoration: none;
  transition: var(--transition);
}

.footer-col ul li a:hover {
  color: #6FC1B8;
  padding-left: 4px;
}

.footer-bottom {
  max-width: 1200px;
  margin: 48px auto 0;
  padding: 24px 24px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  color: #8FA8BF;
  font-size: 13px;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .main-nav {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    left: 24px;
    right: 24px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-hover);
    padding: 16px;
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    z-index: 100;
  }

  .main-nav.open {
    display: flex;
  }

  .nav-pill {
    justify-content: flex-start;
    padding: 12px 16px;
  }

  .nav-toggle {
    display: inline-flex;
  }

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

  .feature-card.feature-lg {
    grid-column: span 2;
    grid-row: auto;
    flex-direction: row;
    align-items: stretch;
  }

  .feature-lg .feature-img {
    width: 45%;
    height: auto;
    border-right: 1px solid var(--border);
    border-bottom: none;
  }

  .feature-lg .feature-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  .scenario-layout {
    grid-template-columns: 1fr;
    gap: 48px;
  }

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

  .trust-banner {
    grid-template-columns: repeat(2, 1fr);
    padding: 40px;
  }

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

@media (max-width: 768px) {
  .section {
    padding: 64px 0;
  }

  .hero {
    padding: 56px 0 48px;
  }

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

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

  .hero-metrics {
    grid-template-columns: 1fr;
    max-width: 420px;
  }

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

  .feature-card.feature-lg {
    grid-column: auto;
    flex-direction: column;
  }

  .feature-lg .feature-img {
    width: 100%;
    height: 200px;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }

  .scenario-img-wrap img {
    aspect-ratio: 16 / 9;
  }

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

  .trust-banner {
    grid-template-columns: 1fr;
    gap: 28px;
    padding: 32px 24px;
  }

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

  .cta-actions {
    flex-direction: column;
    width: 100%;
  }

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

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

  .header-inner {
    padding: 10px 12px 10px 14px;
    border-radius: 16px;
  }

  .logo-text {
    font-size: 17px;
  }

  .logo-icon {
    width: 34px;
    height: 34px;
  }

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

  .section-head h2 {
    font-size: 24px;
  }

  .btn {
    padding: 13px 22px;
    font-size: 14px;
  }

  .feature-card {
    padding: 24px;
  }

  .feature-lg .feature-body {
    padding: 24px;
  }

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

  .faq-content {
    padding: 0 18px 18px;
    margin: 0 18px;
    font-size: 14px;
  }

  .cta-wrap h2 {
    font-size: 24px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* roulang page: category3 */
:root {
  --primary: #2E6B9E;
  --primary-dark: #22517B;
  --primary-light: #E8F0F8;
  --accent: #17A2A0;
  --accent-dark: #0E7F7D;
  --bg: #FFFFFF;
  --bg-soft: #F5F8FB;
  --text: #1A2E3F;
  --text-secondary: #5A6E80;
  --text-muted: #8FA1AF;
  --border: #E2E9F0;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 20px;
  --shadow-sm: 0 2px 10px rgba(30, 64, 120, 0.04);
  --shadow-md: 0 4px 20px rgba(30, 64, 120, 0.06);
  --shadow-lg: 0 8px 28px rgba(30, 64, 120, 0.08);
  --font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  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;
}

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

ul, ol {
  list-style: none;
}

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

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 16px 24px 0;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(10px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
  padding: 12px 24px;
  max-width: 1200px;
  margin: 0 auto;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--primary-light);
  flex-shrink: 0;
}

.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.5px;
}

.logo-text span {
  color: var(--accent);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 16px;
  border-radius: 999px;
  background: #F0F5FA;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.nav-pill svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.nav-pill:hover {
  background: var(--primary-light);
  color: var(--primary);
}

.nav-pill.active {
  background: var(--primary-light);
  color: var(--primary);
  border: 1px solid rgba(46, 107, 158, 0.35);
  box-shadow: 0 0 0 3px rgba(46, 107, 158, 0.08);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--bg-soft);
  align-items: center;
  justify-content: center;
  color: var(--text);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 30px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  transition: all 0.2s ease;
  border: 1px solid transparent;
  cursor: pointer;
  line-height: 1.4;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 16px rgba(46, 107, 158, 0.25);
}

.btn-primary:hover {
  background: var(--primary-dark);
  box-shadow: 0 6px 20px rgba(46, 107, 158, 0.3);
  transform: translateY(-1px);
}

.btn-outline {
  background: #fff;
  color: var(--primary);
  border-color: var(--primary);
}

.btn-outline:hover {
  background: var(--primary-light);
}

.btn-light {
  background: #fff;
  color: var(--primary);
}

.btn-light:hover {
  background: var(--primary-light);
  transform: translateY(-1px);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.5);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.25);
}

.btn-sm {
  padding: 10px 22px;
  font-size: 14px;
}

/* ===== Hero ===== */
.page-hero {
  position: relative;
  padding: 80px 24px 60px;
  background: linear-gradient(180deg, #FFFFFF 0%, #EFF4F9 100%);
  overflow: hidden;
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("/assets/images/backpic/back-2.webp") center / cover no-repeat;
  opacity: 0.18;
  pointer-events: none;
}

.page-hero .container {
  position: relative;
  z-index: 2;
}

.hero-content {
  max-width: 720px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(23, 162, 160, 0.1);
  color: var(--accent-dark);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 20px;
  border: 1px solid rgba(23, 162, 160, 0.2);
}

.page-hero h1 {
  font-size: 40px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--text);
  margin-bottom: 18px;
  letter-spacing: 0.5px;
}

.hero-sub {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 32px;
  max-width: 620px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  max-width: 640px;
}

.metric-card {
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  text-align: center;
}

.metric-card strong {
  display: block;
  font-size: 26px;
  font-weight: 700;
  color: var(--primary);
  margin: 6px 0 2px;
}

.metric-card span {
  font-size: 13px;
  color: var(--text-muted);
}

.metric-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  margin: 0 auto 8px;
  border-radius: 10px;
  background: var(--primary-light);
  color: var(--primary);
}

/* ===== Section ===== */
.section {
  padding: 80px 24px;
}

.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 48px;
}

.section-head.left {
  text-align: left;
  margin: 0 0 32px;
}

.section-head h2 {
  font-size: 30px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
  margin-bottom: 12px;
}

.section-head p {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ===== Access Methods ===== */
.access-methods {
  background: var(--bg);
}

.method-grid {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 24px;
}

.method-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: all 0.2s ease;
  padding: 24px;
}

.method-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(46, 107, 158, 0.3);
}

.method-card-featured {
  display: flex;
  flex-direction: column;
  padding: 0;
}

.method-img {
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.method-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.method-card-featured:hover .method-img img {
  transform: scale(1.02);
}

.method-body {
  padding: 24px;
}

.method-stack {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.method-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--primary-light);
  color: var(--primary);
  margin-bottom: 14px;
}

.tag {
  display: inline-block;
  background: rgba(23, 162, 160, 0.1);
  color: var(--accent-dark);
  font-size: 12px;
  font-weight: 600;
  padding: 3px 12px;
  border-radius: 999px;
  margin-bottom: 12px;
  border: 1px solid rgba(23, 162, 160, 0.18);
}

.method-card h3 {
  font-size: 19px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 10px;
}

.method-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 16px;
}

.link-more {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  transition: color 0.2s;
}

.link-more:hover {
  color: var(--accent-dark);
  text-decoration: underline;
  text-underline-offset: 4px;
}

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

.steps-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.steps-list {
  position: relative;
}

.steps-list li {
  display: flex;
  gap: 18px;
  padding: 16px 0;
  position: relative;
}

.steps-list li:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 24px;
  top: 60px;
  bottom: -10px;
  width: 1px;
  background: var(--border);
}

.step-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: var(--primary);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(46, 107, 158, 0.2);
}

.steps-list h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}

.steps-list p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
}

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

.steps-image img {
  width: 100%;
  height: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

/* ===== Assurance ===== */
.assurance {
  padding: 60px 24px;
}

.assurance-inner {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.assurance-item {
  text-align: center;
  color: #fff;
}

.assurance-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin: 0 auto 12px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.15);
}

.assurance-item strong {
  display: block;
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 4px;
}

.assurance-item span {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.85);
}

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

.faq-list {
  max-width: 760px;
  margin: 0 auto;
}

.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  margin-bottom: 14px;
  overflow: hidden;
  transition: box-shadow 0.2s ease;
}

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

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  background: #fff;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  text-align: left;
  transition: background 0.2s;
}

.faq-question:hover {
  background: var(--bg-soft);
}

.faq-item.active .faq-question {
  border-bottom: 1px solid var(--border);
  background: var(--bg-soft);
}

.faq-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 18px;
  flex-shrink: 0;
  transition: transform 0.25s ease;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
  background: var(--primary);
  color: #fff;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease;
}

.faq-answer-inner {
  padding: 20px 24px;
  background: var(--bg-soft);
}

.faq-answer p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ===== CTA ===== */
.cta-section {
  padding: 40px 24px 80px;
}

.cta-panel {
  background: linear-gradient(135deg, rgba(46, 107, 158, 0.95) 0%, rgba(23, 162, 160, 0.9) 100%);
  border-radius: var(--radius-lg);
  padding: 60px 40px;
  text-align: center;
  color: #fff;
}

.cta-panel h2 {
  font-size: 30px;
  font-weight: 700;
  margin-bottom: 14px;
}

.cta-panel p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.85);
  max-width: 520px;
  margin: 0 auto 28px;
  line-height: 1.8;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

/* ===== Footer ===== */
.site-footer {
  background: #1E3D5C;
  color: #C8D9E8;
  padding: 56px 24px 24px;
}

.footer-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand .logo-text {
  color: #fff;
}

.footer-brand .logo-text span {
  color: #7FB3D5;
}

.footer-brand p {
  font-size: 14px;
  color: #8FA8BF;
  line-height: 1.8;
  margin-top: 12px;
  max-width: 280px;
}

.footer-col h4 {
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  font-size: 14px;
  color: #8FA8BF;
  transition: color 0.2s;
}

.footer-col ul li a:hover {
  color: #7FB3D5;
}

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  font-size: 13px;
  color: #6E8CA5;
  gap: 8px;
}

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

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .main-nav {
    display: none;
    position: absolute;
    top: 72px;
    left: 24px;
    right: 24px;
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
    padding: 16px;
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }

  .main-nav.open {
    display: flex;
  }

  .nav-toggle {
    display: flex;
  }

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

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

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

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

@media (max-width: 768px) {
  .page-hero {
    padding: 56px 16px 40px;
  }

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

  .section {
    padding: 56px 16px;
  }

  .section-head h2 {
    font-size: 26px;
  }

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

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

  .hero-metrics {
    grid-template-columns: 1fr;
    max-width: 100%;
  }

  .metric-card {
    padding: 16px;
  }

  .metric-card strong {
    font-size: 22px;
  }

  .steps-section {
    padding: 56px 16px;
  }

  .assurance {
    padding: 40px 16px;
  }

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

  .cta-panel {
    padding: 40px 24px;
  }

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

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

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

  .footer-bottom {
    flex-direction: column;
    text-align: center;
    justify-content: center;
  }
}

@media (max-width: 520px) {
  .page-hero h1 {
    font-size: 28px;
  }

  .hero-sub {
    font-size: 15px;
  }

  .header-inner {
    padding: 10px 14px;
  }

  .logo-text {
    font-size: 17px;
  }

  .logo-icon {
    width: 34px;
    height: 34px;
  }

  .btn-sm {
    padding: 8px 16px;
    font-size: 13px;
  }

  .section-head h2 {
    font-size: 23px;
  }

  .method-card {
    padding: 18px;
  }

  .method-body {
    padding: 18px;
  }

  .steps-list li {
    gap: 12px;
  }

  .step-num {
    width: 40px;
    height: 40px;
    font-size: 13px;
  }

  .steps-list li:not(:last-child)::after {
    left: 20px;
  }

  .assurance-inner {
    grid-template-columns: 1fr;
  }

  .faq-question {
    padding: 16px;
    font-size: 14px;
  }

  .faq-answer-inner {
    padding: 16px;
  }
}