/* roulang page: index */
:root {
  --teal-600: #0B5C5C;
  --teal-700: #084747;
  --teal-100: #E6F2F0;
  --amber: #F2A33C;
  --amber-dark: #DD8A24;
  --cream: #F7F4EE;
  --card: #FFFFFF;
  --ink: #1F2E2A;
  --muted: #5E6F6A;
  --line: #E5DED2;
  --safe: #2F9E6E;
  --alert: #C5543C;
  --radius-card: 16px;
  --radius-lg: 20px;
  --shadow-card: 0 6px 24px rgba(15, 60, 55, 0.06);
  --shadow-hover: 0 14px 32px rgba(15, 60, 55, 0.12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', sans-serif;
  background: var(--cream);
  color: var(--ink);
  line-height: 1.7;
  font-size: 16px;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
h1, h2, h3, h4, p, ul, ol { margin: 0; padding: 0; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, textarea, select { font-family: inherit; }
:focus-visible { outline: 3px solid rgba(11, 92, 92, 0.35); outline-offset: 2px; border-radius: 4px; }

.container-gj {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
@media (max-width: 640px) {
  .container-gj { padding: 0 18px; }
}

.text-primary { color: var(--teal-600); }
.text-primary-dark { color: var(--teal-700); }
.bg-primary { background: var(--teal-600); }
.bg-primary-dark { background: var(--teal-700); }
.bg-brand-light { background: var(--teal-100); }
.text-muted { color: var(--muted); }
.bg-cream { background: var(--cream); }
.text-alert { color: var(--alert); }

.section-space { padding: 96px 0; }
@media (max-width: 1023px) { .section-space { padding: 72px 0; } }
@media (max-width: 640px) { .section-space { padding: 58px 0; } }

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--teal-600);
  letter-spacing: 0.05em;
  background: rgba(11, 92, 92, 0.08);
  padding: 6px 14px;
  border-radius: 999px;
}
.section-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 14px 0 14px;
}
.section-lead {
  font-size: 16px;
  line-height: 1.85;
  color: var(--muted);
  max-width: 720px;
}
.section-header-center { text-align: center; }
.section-header-center .section-lead { margin-left: auto; margin-right: auto; }
.section-header-left { text-align: left; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 16px;
  font-weight: 600;
  border-radius: 8px;
  padding: 12px 24px;
  line-height: 1.4;
  transition: all 0.22s ease;
  user-select: none;
  border: 1px solid transparent;
  white-space: nowrap;
}
.btn-primary {
  background: var(--amber);
  color: #142A2A;
  border-color: var(--amber);
  box-shadow: 0 4px 14px rgba(242, 163, 60, 0.24);
}
.btn-primary:hover { background: var(--amber-dark); border-color: var(--amber-dark); transform: translateY(-1px); }
.btn-primary:active { transform: translateY(1px); box-shadow: none; }
.btn-outline {
  background: rgba(255, 255, 255, 0.86);
  color: var(--teal-600);
  border-color: rgba(11, 92, 92, 0.35);
}
.btn-outline:hover { border-color: var(--teal-600); background: #fff; color: var(--teal-700); }
.btn-cta {
  background: var(--teal-600);
  color: #FFFFFF;
  border-color: var(--teal-600);
}
.btn-cta:hover { background: var(--teal-700); border-color: var(--teal-700); transform: translateY(-1px); }

.card-surface {
  background: var(--card);
  border: 1px solid rgba(229, 222, 210, 0.65);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  transition: transform .25s ease, box-shadow .25s ease;
}
.card-surface:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.link-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--teal-600);
  font-weight: 600;
  transition: gap .2s ease, color .2s ease;
}
.link-more:hover { color: var(--teal-700); gap: 10px; }

/* Header / Nav */
.site-header { position: fixed; top: 0; left: 0; right: 0; z-index: 90; transition: background .3s, box-shadow .3s; }
.nav-shell {
  margin: 16px auto 0;
  max-width: 1200px;
  padding: 0 20px;
  transition: padding .2s;
}
.nav-bar {
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(11, 92, 92, 0.10);
  border-radius: 999px;
  padding: 7px 8px 7px 18px;
  box-shadow: 0 6px 24px rgba(15, 60, 55, 0.05);
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background .3s ease, box-shadow .3s ease;
}
.site-header.scrolled .nav-shell { padding: 0 14px; }
.site-header.scrolled .nav-shell { max-width: 1200px; }
.site-header.scrolled .nav-bar {
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 12px 32px rgba(15, 60, 55, 0.1);
}
@media (max-width: 640px) {
  .nav-shell { margin-top: 10px; padding: 0 12px; }
  .nav-bar { padding: 6px 6px 6px 12px; }
}

.brand-lockup { display: flex; align-items: center; gap: 10px; min-width: 0; }
.brand-mark {
  width: 36px; height: 36px;
  border-radius: 10px;
  background: var(--teal-100);
  display: flex; align-items: center; justify-content: center;
  color: var(--teal-600);
  flex-shrink: 0;
}
.brand-name {
  font-size: 17px;
  font-weight: 800;
  letter-spacing: 0.01em;
  color: var(--ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
@media (max-width: 640px) {
  .brand-name { font-size: 15px; max-width: 140px; }
}

.nav-menu { display: flex; align-items: center; gap: 2px; }
.nav-menu a {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 8px 13px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  transition: background .2s, color .2s;
}
.nav-menu a:hover { background: rgba(11, 92, 92, 0.08); color: var(--teal-700); }
.nav-menu a.active { background: rgba(11, 92, 92, 0.12); color: var(--teal-700); }

.nav-cta-link {
  display: flex;
  align-items: center;
  background: var(--teal-600);
  color: #fff;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  padding: 8px 16px;
  transition: background .2s, transform .2s;
}
.nav-cta-link:hover { background: var(--teal-700); transform: translateY(-1px); }

.mobile-toggle { display: none; }
@media (max-width: 1023px) {
  .nav-menu { display: none; }
  .nav-cta { display: none; }
  .mobile-toggle {
    display: flex;
    width: 40px; height: 40px;
    border-radius: 50%;
    align-items: center;
    justify-content: center;
    background: rgba(11, 92, 92, 0.06);
    color: var(--teal-600);
    transition: background .2s;
  }
  .mobile-toggle:hover { background: rgba(11, 92, 92, 0.12); }
}
.mobile-drawer {
  position: fixed;
  top: 76px;
  left: 16px;
  right: 16px;
  z-index: 89;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 12px;
  box-shadow: 0 18px 40px rgba(15, 60, 55, 0.14);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all .25s ease;
}
.mobile-drawer.open { opacity: 1; visibility: visible; transform: translateY(0); }
.mobile-drawer a {
  display: flex;
  align-items: center;
  padding: 12px 14px;
  border-radius: 12px;
  font-weight: 600;
  color: var(--ink);
}
.mobile-drawer a + a { margin-top: 2px; }
.mobile-drawer a:hover, .mobile-drawer a.active { background: rgba(11, 92, 92, 0.08); color: var(--teal-600); }

/* Hero */
.hero-wrap { position: relative; overflow: hidden; }
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
}
.hero-bg-mask {
  position: absolute; inset: 0;
  background: linear-gradient(110deg, rgba(247, 244, 238, 0.98) 0%, rgba(247, 244, 238, 0.89) 44%, rgba(247, 244, 238, 0.65) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  padding-top: 150px;
  padding-bottom: 100px;
}
@media (max-width: 1024px) {
  .hero-content { padding-top: 132px; padding-bottom: 80px; }
}
@media (max-width: 640px) {
  .hero-content { padding-top: 120px; padding-bottom: 58px; }
}
.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(11, 92, 92, 0.14);
  backdrop-filter: blur(8px);
  border-radius: 999px;
  padding: 6px 14px;
  color: var(--teal-700);
  font-size: 13px;
  font-weight: 600;
}
.hero-title {
  font-size: clamp(30px, 5.4vw, 52px);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--ink);
  max-width: 780px;
  margin: 20px 0 20px;
}
.hero-sub {
  font-size: 17px;
  line-height: 1.85;
  color: var(--muted);
  max-width: 620px;
  margin-bottom: 30px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; margin-bottom: 22px; }
.hero-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.46);
  border: 1px solid rgba(11, 92, 92, 0.12);
  border-radius: 999px;
  padding: 4px 11px;
  font-size: 13px;
  color: var(--ink);
  font-weight: 500;
}
.dot-primary { width: 6px; height: 6px; border-radius: 50%; background: var(--safe); }

/* Pain */
.pain-card {
  background: #fff;
  border: 1px solid rgba(229, 222, 210, 0.7);
  border-radius: var(--radius-card);
  padding: 34px 28px;
  box-shadow: var(--shadow-card);
  position: relative;
  transition: all .25s ease;
}
.pain-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-3px); }
@media (min-width: 1024px) {
  .pain-card:nth-child(2) { transform: translateY(18px); }
  .pain-card:nth-child(2):hover { transform: translateY(15px); }
}
.pain-num {
  display: flex; align-items: center; justify-content: center;
  width: 32px; height: 32px;
  border-radius: 50%;
  background: rgba(197, 84, 60, 0.12);
  color: var(--alert);
  font-size: 15px; font-weight: 800;
  margin-bottom: 18px;
}
.pain-h { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.pain-p { font-size: 14px; color: var(--muted); line-height: 1.75; }

/* Flow guide */
.guide-section { background: #fff; }
.guide-step-card {
  display: flex;
  gap: 22px;
  position: relative;
  background: #FDFCFa;
  border: 1px solid rgba(11, 92, 92, 0.09);
  border-radius: 20px;
  padding: 26px 24px;
  transition: all .25s ease;
  overflow: hidden;
}
.guide-step-card:hover { border-color: rgba(11, 92, 92, 0.24); box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.guide-step-num {
  flex: 0 0 auto;
  width: 46px; height: 46px;
  border-radius: 14px;
  background: var(--teal-100);
  color: var(--teal-600);
  font-size: 18px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
}
.guide-step-title { font-size: 18px; font-weight: 750; margin-bottom: 6px; }
.guide-step-copy { color: var(--muted); font-size: 14px; line-height: 1.75; }
.guide-connector-line {
  border-left: 2px dashed rgba(11, 92, 92, 0.18);
  height: 26px;
  margin-left: 24px;
}
@media (max-width: 640px) {
  .guide-step-card { padding: 20px; gap: 16px; }
  .guide-step-num { width: 40px; height: 40px; font-size: 16px; }
}

/* Metric */
.metric-band {
  background: linear-gradient(135deg, #E6F2F0 0%, #F0F7F4 100%);
  border-top: 1px solid rgba(11, 92, 92, 0.08);
  border-bottom: 1px solid rgba(11, 92, 92, 0.08);
}
.metric-card {
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: 20px;
  padding: 28px 24px;
  position: relative;
  overflow: hidden;
}
.metric-card:before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 3px; height: 100%;
  background: var(--teal-600);
  opacity: 0.6;
}
.metric-card h3 { font-size: 16px; font-weight: 700; color: var(--teal-700); margin-bottom: 6px; }
.metric-card p { font-size: 14px; color: var(--ink); line-height: 1.75; opacity: 0.88; }

/* Category card */
.category-card {
  display: flex;
  align-items: center;
  gap: 22px;
  background: #fff;
  border: 1px solid rgba(229, 222, 210, 0.7);
  border-radius: 20px;
  padding: 18px;
  box-shadow: var(--shadow-card);
  transition: all .24s ease;
  min-height: 178px;
}
.category-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
  border-color: rgba(11, 92, 92, 0.16);
}
.category-card img {
  width: 150px;
  height: 105px;
  object-fit: cover;
  border-radius: 14px;
  flex-shrink: 0;
  background: var(--teal-100);
}
@media (max-width: 640px) {
  .category-card { align-items: flex-start; }
  .category-card img { width: 100px; height: 90px; }
}
.category-card h3 { font-size: 19px; font-weight: 750; color: var(--ink); margin-bottom: 5px; }
.category-card p { font-size: 14px; line-height: 1.72; color: var(--muted); margin-top: 6px; }
.category-card .cat-link { margin-top: 8px; }

/* News */
.news-list-wrap { position: relative; }
.news-card {
  display: block;
  background: #fff;
  border: 1px solid rgba(229, 222, 210, 0.75);
  border-radius: 18px;
  padding: 20px 20px 18px;
  box-shadow: var(--shadow-card);
  transition: all .24s ease;
}
.news-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.news-card img {
  width: 100%;
  height: 164px;
  object-fit: cover;
  border-radius: 12px;
  background: var(--teal-100);
}
.news-card .news-cat {
  display: inline-flex;
  align-items: center;
  background: rgba(11, 92, 92, 0.09);
  color: var(--teal-700);
  font-weight: 600;
  border-radius: 999px;
  padding: 3px 10px;
  font-size: 12px;
}
.news-card h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.5;
  margin: 10px 0 6px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-card .news-summary {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.75;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 12px;
  font-size: 12px;
  color: var(--muted);
}
.news-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 1.5px dashed rgba(11, 92, 92, 0.18);
  background: rgba(255, 255, 255, 0.55);
  border-radius: 20px;
  padding: 48px 24px;
  text-align: center;
  color: var(--muted);
}
.news-empty p { font-size: 16px; font-weight: 500; margin-bottom: 12px; }

/* Insight / quotes */
.insight-card {
  background: #fff;
  border: 1px solid rgba(11, 92, 92, 0.10);
  border-left: 4px solid var(--teal-600);
  border-radius: 18px;
  padding: 30px;
  box-shadow: var(--shadow-card);
}
.insight-card .quote-icon {
  color: rgba(11, 92, 92, 0.14);
  font-size: 34px;
  line-height: 1;
  margin-bottom: 6px;
  font-family: Georgia, serif;
}
.insight-card .quote-body { font-size: 15px; line-height: 1.85; color: var(--ink); }
.insight-meta {
  margin-top: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.insight-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--teal-100);
  color: var(--teal-600);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  flex-shrink: 0;
}

/* FAQ */
.faq-wrap { max-width: 900px; margin: 0 auto; }
.faq-item {
  background: #fff;
  border: 1px solid rgba(229, 222, 210, 0.8);
  border-radius: 16px;
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color .2s;
}
.faq-item.open { border-color: rgba(11, 92, 92, 0.25); }
.faq-q {
  width: 100%;
  text-align: left;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 20px;
  font-size: 16px;
  font-weight: 650;
  color: var(--ink);
  background: transparent;
}
.faq-q:hover { color: var(--teal-700); }
.faq-arrow {
  width: 24px; height: 24px;
  flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: rgba(11, 92, 92, 0.08);
  color: var(--teal-600);
  transition: transform .25s;
}
.faq-field.open .faq-arrow { transform: rotate(180deg); background: var(--teal-600); color: #fff; }
.faq-a { display: none; padding: 0 20px 20px; font-size: 15px; line-height: 1.85; color: var(--muted); }

/* CTA band */
.cta-band { position: relative; border-radius: 24px; overflow: hidden; background: var(--teal-600); }
.cta-bg {
  position: absolute; inset: 0;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  opacity: 0.16;
}
.cta-inner { position: relative; z-index: 1; padding: 64px 48px; color: #fff; }
@media (max-width: 640px) { .cta-inner { padding: 40px 24px; } }
.cta-inner h2 { font-size: clamp(25px, 4vw, 36px); font-weight: 800; line-height: 1.25; color: #fff; max-width: 680px; }
.cta-inner p { margin-top: 14px; color: rgba(255, 255, 255, 0.82); max-width: 570px; line-height: 1.85; }
.cta-inner .btn { margin-top: 28px; }

/* Footer */
.site-footer { background: #052F2D; color: rgba(255, 255, 255, 0.74); }
.site-footer a { transition: color .2s; }
.site-footer a:hover { color: #fff; }
.footer-top {
  padding: 58px 0 42px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 36px;
}
.footer-brand-name {
  font-size: 19px;
  font-weight: 800;
  color: #fff;
  letter-spacing: 0.01em;
  display: flex;
  align-items: center;
  gap: 10px;
}
.footer-desc { font-size: 14px; line-height: 1.85; margin-top: 14px; max-width: 340px; }
.footer-col-title { font-size: 14px; font-weight: 700; color: #fff; margin-bottom: 12px; }
.footer-col a { display: block; padding: 5px 0; font-size: 14px; opacity: 0.86; }
.footer-col a:hover { opacity: 1; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: 20px 0 26px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.56);
}
@media (max-width: 1023px) {
  .footer-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .footer-top { grid-template-columns: 1fr; gap: 30px; padding-top: 44px; }
}

/* util */
@media (max-width: 640px) {
  .btn { width: auto; padding: 11px 18px; font-size: 15px; }
}

/* roulang page: article */
:root {
            --pine: #0B5C5C;
            --pine-dark: #084747;
            --pine-light: #E6F2F0;
            --amber: #F2A33C;
            --amber-deep: #DD8A24;
            --ink-dark: #142A2A;
            --cream: #F7F4EE;
            --paper: #FFFFFF;
            --ink-body: #1F2E2A;
            --ink-soft: #5E6F6A;
            --line-soft: #E5DED2;
            --safe-green: #2F9E6E;
            --alert-orange: #C5543C;
            --radius-card: 16px;
            --radius-btn: 8px;
            --radius-capsule: 999px;
            --shadow-card: 0 6px 24px rgba(15, 60, 55, 0.06);
            --shadow-card-hover: 0 14px 32px rgba(15, 60, 55, 0.12);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', sans-serif;
            background-color: var(--cream);
            color: var(--ink-body);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

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

        .brand-color {
            color: var(--pine);
        }

        .bg-cream {
            background-color: var(--cream);
        }

        .bg-paper {
            background-color: var(--paper);
        }

        /* ---------- 通用按钮 ---------- */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background-color: var(--amber);
            color: var(--ink-dark);
            font-weight: 700;
            font-size: 16px;
            padding: 13px 32px;
            border-radius: 8px;
            border: 1px solid transparent;
            transition: background-color 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease, border-color 0.25s ease;
            outline: none;
            cursor: pointer;
            letter-spacing: 0.02em;
        }

        .btn-primary:hover {
            background-color: var(--amber-deep);
            color: var(--ink-dark);
            transform: translateY(-1px);
            box-shadow: 0 10px 24px rgba(242, 163, 60, 0.3);
        }

        .btn-primary:focus-visible {
            box-shadow: 0 0 0 4px rgba(11, 92, 92, 0.35);
        }

        .btn-primary:active {
            transform: translateY(1px);
            box-shadow: 0 4px 12px rgba(242, 163, 60, 0.2);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background-color: transparent;
            color: var(--pine);
            border: 1.5px solid var(--pine);
            font-weight: 600;
            font-size: 16px;
            padding: 12px 32px;
            border-radius: 8px;
            transition: background-color 0.25s ease, color 0.25s ease, border-color 0.25s ease, transform 0.2s ease;
            outline: none;
            cursor: pointer;
            letter-spacing: 0.02em;
        }

        .btn-outline:hover {
            background-color: var(--pine);
            color: #fff;
            border-color: var(--pine);
            transform: translateY(-1px);
        }

        .btn-outline:focus-visible {
            box-shadow: 0 0 0 4px rgba(11, 92, 92, 0.25);
        }

        .btn-outline:active {
            transform: translateY(1px);
        }

        /* ---------- 悬浮胶囊导航 ---------- */
        .site-header {
            position: fixed;
            top: 18px;
            left: 0;
            right: 0;
            z-index: 100;
            padding: 0 24px;
            transition: top 0.3s ease;
        }

        .header-capsule {
            max-width: 1200px;
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.82);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid rgba(11, 92, 92, 0.12);
            border-radius: 999px;
            padding: 10px 26px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            box-shadow: 0 8px 30px rgba(15, 60, 55, 0.08);
        }

        .site-header.scrolled {
            top: 10px;
        }

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

        .brand-logo svg {
            color: var(--pine);
            flex-shrink: 0;
        }

        .brand-logo-text {
            font-size: 18px;
            font-weight: 800;
            color: var(--ink-dark);
            letter-spacing: 0.02em;
            white-space: nowrap;
            line-height: 1.2;
        }

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

        .nav-menu a {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 500;
            color: var(--ink-soft);
            white-space: nowrap;
            transition: background-color 0.25s ease, color 0.25s ease;
        }

        .nav-menu a:hover {
            background-color: rgba(11, 92, 92, 0.08);
            color: var(--pine);
        }

        .nav-menu a.active {
            background-color: var(--pine-light);
            color: var(--pine);
            font-weight: 700;
        }

        .nav-cta-mobile {
            display: none;
        }

        .mobile-menu-toggle {
            display: none;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            background: transparent;
            border-radius: 50%;
            color: var(--pine);
            transition: background-color 0.25s ease;
        }

        .mobile-menu-toggle:hover {
            background-color: rgba(11, 92, 92, 0.08);
        }

        .mobile-drawer {
            display: none;
            position: fixed;
            top: 0;
            right: 0;
            width: 300px;
            height: 100vh;
            background: var(--paper);
            box-shadow: -12px 0 40px rgba(15, 60, 55, 0.16);
            padding: 90px 28px 40px;
            z-index: 120;
            overflow-y: auto;
            transform: translateX(100%);
            transition: transform 0.35s ease;
            border-radius: 20px 0 0 20px;
        }

        .mobile-drawer.open {
            transform: translateX(0);
        }

        .mobile-drawer nav a {
            display: block;
            padding: 14px 12px;
            font-size: 17px;
            font-weight: 600;
            color: var(--ink-soft);
            border-radius: 12px;
            margin-bottom: 4px;
        }

        .mobile-drawer nav a:hover {
            background-color: var(--pine-light);
            color: var(--pine);
        }

        .mobile-drawer nav a.active {
            background-color: var(--pine-light);
            color: var(--pine);
            font-weight: 700;
        }

        .drawer-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(20, 30, 25, 0.4);
            backdrop-filter: blur(2px);
            z-index: 110;
        }

        .drawer-overlay.open {
            display: block;
        }

        /* ---------- 页面主体 ---------- */
        .article-page-main {
            padding-top: 120px;
            padding-bottom: 80px;
            min-height: 70vh;
        }

        .breadcrumb-bar {
            background-color: var(--paper);
            border: 1px solid var(--line-soft);
            border-radius: 12px;
            padding: 12px 20px;
            margin-bottom: 36px;
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px;
            font-size: 14px;
            color: var(--ink-soft);
        }

        .breadcrumb-bar a {
            color: var(--pine);
            font-weight: 500;
        }

        .breadcrumb-bar a:hover {
            text-decoration: underline;
        }

        .breadcrumb-sep {
            color: #B5BDB9;
            margin: 0 4px;
        }

        .article-layout {
            display: grid;
            grid-template-columns: minmax(0, 1fr);
            gap: 40px;
        }

        .article-body-col {
            max-width: 780px;
            width: 100%;
            margin: 0 auto;
        }

        .article-detail-card {
            background-color: var(--paper);
            border-radius: 20px;
            border: 1px solid var(--line-soft);
            box-shadow: var(--shadow-card);
            padding: 48px 56px;
            transition: box-shadow 0.3s ease;
        }

        .article-top-tags {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
            margin-bottom: 18px;
        }

        .article-cat-tag {
            background-color: var(--pine-light);
            color: var(--pine);
            font-size: 13px;
            font-weight: 700;
            padding: 5px 14px;
            border-radius: 999px;
            letter-spacing: 0.02em;
        }

        .article-detail-card h1 {
            font-size: 38px;
            line-height: 1.3;
            color: var(--ink-dark);
            font-weight: 800;
            margin-bottom: 20px;
            letter-spacing: -0.01em;
        }

        .article-meta-row {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 18px;
            padding-bottom: 28px;
            border-bottom: 1px solid var(--line-soft);
            margin-bottom: 0;
            font-size: 14px;
            color: var(--ink-soft);
        }

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

        .article-meta-row svg {
            width: 15px;
            height: 15px;
            color: var(--pine);
            opacity: 0.7;
        }

        .article-cover-wrap {
            margin: 30px 0 8px;
            border-radius: 16px;
            overflow: hidden;
        }

        .article-cover-wrap img {
            width: 100%;
            object-fit: cover;
            aspect-ratio: 16 / 7;
        }

        /* 正文排版 */
        .article-content-body {
            padding-top: 28px;
            font-size: 16.5px;
            line-height: 1.85;
            color: #2b3c36;
            word-break: break-word;
        }

        .article-content-body p {
            margin-bottom: 1.4em;
        }

        .article-content-body h2 {
            font-size: 28px;
            font-weight: 800;
            color: var(--ink-dark);
            margin: 1.8em 0 0.8em;
            line-height: 1.4;
            padding-left: 14px;
            border-left: 4px solid var(--pine);
        }

        .article-content-body h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--ink-dark);
            margin: 1.6em 0 0.7em;
            line-height: 1.4;
        }

        .article-content-body a {
            color: var(--pine);
            font-weight: 600;
            border-bottom: 1px solid transparent;
        }

        .article-content-body a:hover {
            border-bottom-color: var(--pine);
            text-decoration: none;
        }

        .article-content-body ul,
        .article-content-body ol {
            margin: 0 0 1.5em 1.2em;
            padding-left: 0.6em;
        }

        .article-content-body ul li,
        .article-content-body ol li {
            margin-bottom: 0.5em;
            padding-left: 0.4em;
        }

        .article-content-body ul li::marker {
            color: var(--pine);
        }

        .article-content-body ol li::marker {
            color: var(--pine);
            font-weight: 700;
        }

        .article-content-body img {
            border-radius: 16px;
            margin: 1.8em auto;
            box-shadow: var(--shadow-card);
        }

        .article-content-body blockquote {
            background-color: var(--pine-light);
            border-left: 4px solid var(--pine);
            border-radius: 0 12px 12px 0;
            padding: 18px 24px;
            margin: 1.8em 0;
            color: #2b4d4a;
            font-style: normal;
        }

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

        .article-content-body table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            margin: 1.8em 0;
            border-radius: 12px;
            overflow: hidden;
            border: 1px solid var(--line-soft);
            background: #fff;
        }

        .article-content-body table th {
            background-color: #f0f5f3;
            color: var(--ink-dark);
            font-weight: 700;
            text-align: left;
            padding: 12px 16px;
            border-bottom: 1px solid var(--line-soft);
            font-size: 15px;
        }

        .article-content-body table td {
            padding: 12px 16px;
            border-bottom: 1px solid #F0ECE4;
            font-size: 15px;
        }

        .article-content-body table tr:last-child td {
            border-bottom: none;
        }

        .article-content-body table tr:hover td {
            background-color: #FAFAF7;
        }

        .article-content-body .notice-box {
            background-color: #FFF8EF;
            border: 1px solid #F0E4D0;
            border-radius: 12px;
            padding: 18px 24px;
            margin: 1.8em 0;
            color: #5c4a2e;
        }

        .article-content-body .notice-box strong {
            color: var(--ink-dark);
        }

        .article-content-body .alert-box {
            background-color: #FBEFED;
            border: 1px solid #EDD5CF;
            border-radius: 12px;
            padding: 18px 24px;
            margin: 1.8em 0;
            color: #6e3a32;
        }

        .article-content-body .alert-box strong {
            color: #B03018;
        }

        .article-content-body code {
            background: #F2F4F2;
            padding: 2px 8px;
            border-radius: 6px;
            font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
            font-size: 0.9em;
            color: var(--pine-dark);
        }

        /* 空态 */
        .article-not-found {
            background-color: var(--paper);
            border-radius: 20px;
            border: 2px dashed var(--line-soft);
            padding: 90px 40px;
            text-align: center;
            max-width: 780px;
            margin: 0 auto;
        }

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

        .article-not-found h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--ink-dark);
            margin-bottom: 12px;
        }

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

        /* 文末切换 */
        .article-pager {
            max-width: 780px;
            margin: 32px auto 0;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
        }

        .page-prev,
        .page-next {
            background-color: var(--paper);
            border: 1px solid var(--line-soft);
            border-radius: 16px;
            padding: 20px 22px;
            display: flex;
            flex-direction: column;
            gap: 6px;
            box-shadow: 0 2px 8px rgba(15, 60, 55, 0.03);
            transition: box-shadow 0.3s ease, transform 0.2s ease, border-color 0.3s ease;
            min-width: 0;
        }

        .page-prev:hover,
        .page-next:hover {
            border-color: rgba(11, 92, 92, 0.3);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
        }

        .page-prev .page-label,
        .page-next .page-label {
            font-size: 13px;
            color: var(--ink-soft);
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .page-prev .page-title,
        .page-next .page-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--ink-dark);
            line-height: 1.5;
            overflow: hidden;
            text-overflow: ellipsis;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
        }

        .page-next {
            text-align: right;
            align-items: flex-end;
        }

        .page-empty {
            background-color: rgba(255, 255, 255, 0.55);
            border: 1px dashed var(--line-soft);
            border-radius: 16px;
            padding: 20px 22px;
            color: var(--ink-soft);
            font-size: 14px;
        }

        /* 相关推荐 */
        .related-section {
            max-width: 780px;
            margin: 48px auto 0;
        }

        .related-title-wrap {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 24px;
        }

        .related-title-wrap::after {
            content: "";
            flex: 1;
            height: 1px;
            background: linear-gradient(90deg, var(--line-soft), transparent);
        }

        .related-title-wrap h2 {
            font-size: 22px;
            font-weight: 800;
            color: var(--ink-dark);
            margin: 0;
            white-space: nowrap;
        }

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

        .related-item {
            background-color: var(--paper);
            border: 1px solid var(--line-soft);
            border-radius: 16px;
            padding: 20px 18px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            transition: box-shadow 0.3s ease, transform 0.2s ease, border-color 0.3s ease;
            min-height: 140px;
        }

        .related-item:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-2px);
            border-color: rgba(11, 92, 92, 0.2);
        }

        .related-item .rel-cat {
            font-size: 12px;
            font-weight: 700;
            color: var(--pine);
            background: var(--pine-light);
            padding: 3px 12px;
            border-radius: 999px;
            align-self: flex-start;
        }

        .related-item .rel-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--ink-dark);
            line-height: 1.5;
            overflow: hidden;
            text-overflow: ellipsis;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            transition: color 0.25s ease;
        }

        .related-item:hover .rel-title {
            color: var(--pine);
        }

        /* 返回分类 */
        .back-to-cat {
            max-width: 780px;
            margin: 24px auto 0;
            display: flex;
            justify-content: center;
        }

        /* ---------- 底部 CTA 区 ---------- */
        .article-bottom-cta {
            background-color: var(--pine-light);
            border-radius: 20px;
            padding: 40px;
            margin: 64px auto 0;
            max-width: 980px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
            border: 1px solid rgba(11, 92, 92, 0.08);
        }

        .article-bottom-cta .cta-word h3 {
            font-size: 20px;
            font-weight: 800;
            color: var(--ink-dark);
            margin-bottom: 6px;
        }

        .article-bottom-cta .cta-word p {
            font-size: 14px;
            color: var(--ink-soft);
        }

        /* ---------- 页脚 ---------- */
        .site-footer {
            background-color: var(--pine-dark);
            color: rgba(255, 255, 255, 0.82);
            padding: 64px 0 32px;
            margin-top: 60px;
            border-radius: 24px 24px 0 0;
        }

        .site-footer .container-gj {
            max-width: 1200px;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 44px;
            margin-bottom: 44px;
        }

        .footer-brand-name {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 19px;
            font-weight: 800;
            color: #fff;
            letter-spacing: 0.02em;
            margin-bottom: 16px;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.62);
            max-width: 360px;
        }

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

        .footer-col-title {
            font-size: 15px;
            font-weight: 700;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 6px;
            letter-spacing: 0.04em;
        }

        .footer-col a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.7;
            width: fit-content;
        }

        .footer-col a:hover {
            color: var(--amber);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.12);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }

        /* ---------- 文章页内容缺失时的提示 ---------- */
        .missing-content {
            text-align: center;
        }

        /* ---------- 响应式 ---------- */
        @media (max-width: 1024px) {
            .footer-top {
                grid-template-columns: 1.2fr 1fr 1fr;
                gap: 36px;
            }

            .footer-col:last-child {
                display: none;
            }

            .article-detail-card {
                padding: 40px 36px;
            }

            .article-detail-card h1 {
                font-size: 32px;
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
            }

            .mobile-menu-toggle {
                display: flex;
            }

            .nav-cta-mobile {
                display: block;
            }

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

            .footer-desc {
                max-width: 100%;
            }

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

            .article-pager {
                grid-template-columns: 1fr;
            }

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

            .article-detail-card h1 {
                font-size: 28px;
            }

            .article-page-main {
                padding-top: 100px;
            }

            .article-content-body h2 {
                font-size: 24px;
            }

            .article-cover-wrap img {
                aspect-ratio: 16 / 10;
            }

            .article-bottom-cta {
                padding: 28px 24px;
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (max-width: 640px) {
            .container-gj {
                padding-left: 18px;
                padding-right: 18px;
            }

            .site-header {
                top: 12px;
                padding: 0 14px;
            }

            .header-capsule {
                padding: 8px 16px;
            }

            .brand-logo-text {
                font-size: 16px;
            }

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

            .article-content-body {
                font-size: 16px;
                line-height: 1.8;
            }

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

/* roulang page: category1 */
:root {
      --primary: #0B5C5C;
      --primary-dark: #084747;
      --primary-soft: #E6F2F0;
      --accent: #F2A33C;
      --accent-dark: #DD8A24;
      --accent-ink: #142A2A;
      --bg-warm: #F7F4EE;
      --card: #FFFFFF;
      --ink: #1F2E2A;
      --text-muted: #5E6F6A;
      --border: #E5DED2;
      --safety-green: #2F9E6E;
      --warning: #C5543C;
      --radius-card: 16px;
      --radius-large: 20px;
      --radius-btn: 8px;
      --shadow-card: 0 6px 24px rgba(15, 60, 55, 0.06);
      --shadow-hover: 0 14px 32px rgba(15, 60, 55, 0.12);
      --font-stack: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      background: var(--bg-warm);
      color: var(--ink);
      font-family: var(--font-stack);
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
      text-rendering: optimizeLegibility;
      min-height: 100vh;
    }

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

    a {
      color: inherit;
      text-decoration: none;
    }

    button,
    input,
    select,
    textarea {
      font-family: inherit;
      font-size: inherit;
      color: inherit;
    }

    ul,
    ol {
      list-style: none;
    }

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

    .page-section {
      padding-top: 96px;
      padding-bottom: 96px;
    }

    .section-bg-white {
      background: #FFFFFF;
    }

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

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

    /* ===== Header & Nav ===== */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      padding-top: 18px;
      padding-left: 18px;
      padding-right: 18px;
      z-index: 80;
      pointer-events: none;
    }

    .nav-wrap {
      max-width: 1200px;
      margin: 0 auto;
      display: flex;
      align-items: center;
      gap: 16px;
      padding: 8px 10px 8px 20px;
      border-radius: 999px;
      background: rgba(255, 255, 255, 0.72);
      border: 1px solid rgba(229, 222, 210, 0.65);
      box-shadow: 0 8px 28px rgba(15, 60, 55, 0.08);
      backdrop-filter: blur(14px) saturate(1.1);
      -webkit-backdrop-filter: blur(14px) saturate(1.1);
      pointer-events: auto;
      transition: background 0.35s ease, box-shadow 0.35s ease;
    }

    .site-header.is-scrolled .nav-wrap {
      background: rgba(255, 255, 255, 0.92);
      box-shadow: 0 12px 30px rgba(15, 60, 55, 0.13);
    }

    .brand-logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-weight: 800;
      font-size: 19px;
      color: var(--ink);
      line-height: 1.2;
      letter-spacing: -0.2px;
      flex-shrink: 0;
      margin-right: 6px;
    }

    .brand-logo svg {
      flex-shrink: 0;
    }

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

    .nav-menu {
      display: flex;
      align-items: center;
      gap: 4px;
      flex: 1;
      justify-content: center;
      transition: opacity 0.2s ease;
    }

    .nav-menu a {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 40px;
      padding: 0 15px;
      border-radius: 999px;
      font-size: 14px;
      font-weight: 600;
      color: #354A45;
      transition: background 0.2s ease, color 0.2s ease;
      white-space: nowrap;
    }

    .nav-menu a:hover {
      background: rgba(11, 92, 92, 0.1);
      color: var(--primary);
    }

    .nav-menu a.active {
      background: var(--primary-soft);
      color: var(--primary);
      font-weight: 800;
    }

    .nav-cta {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      flex-shrink: 0;
      margin-left: auto;
      min-height: 42px;
      padding: 0 18px;
      border-radius: 999px;
      background: var(--primary);
      color: #fff;
      font-size: 14px;
      font-weight: 700;
      transition: background 0.2s ease, transform 0.2s ease;
    }

    .nav-cta:hover {
      background: var(--primary-dark);
    }

    .nav-cta span {
      display: inline-block;
      transition: transform 0.2s ease;
    }

    .nav-cta:hover span {
      transform: translateX(3px);
    }

    .menu-toggle {
      display: none;
      width: 42px;
      height: 42px;
      flex-shrink: 0;
      border-radius: 999px;
      align-items: center;
      justify-content: center;
      background: var(--primary-soft);
    }

    .menu-toggle svg {
      width: 22px;
      height: 22px;
      stroke: var(--primary);
    }

    @media (max-width: 880px) {
      .nav-wrap {
        padding-left: 14px;
        padding-right: 8px;
      }

      .nav-menu {
        position: fixed;
        top: 78px;
        left: 16px;
        right: 16px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        gap: 6px;
        background: rgba(255, 255, 255, 0.98);
        border: 1px solid var(--border);
        border-radius: 20px;
        padding: 14px;
        box-shadow: var(--shadow-hover);
        backdrop-filter: blur(16px);
      }

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

      .nav-menu a {
        justify-content: flex-start;
        min-height: 48px;
        padding: 0 18px;
        border-radius: 12px;
        font-size: 15px;
      }

      .nav-cta {
        margin-left: auto;
        min-height: 40px;
        padding: 0 16px;
      }

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

    @media (max-width: 520px) {
      .site-header {
        padding: 12px 12px 0;
      }

      .brand-logo {
        gap: 8px;
        font-size: 16px;
      }

      .brand-logo svg {
        width: 20px;
        height: 20px;
      }

      .nav-cta {
        padding: 0 13px;
        font-size: 13px;
      }

      .nav-cta span {
        display: none;
      }
    }

    /* ===== Buttons ===== */
    .btn-primary,
    .btn-secondary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      min-height: 48px;
      padding: 0 23px;
      border-radius: var(--radius-btn);
      font-weight: 700;
      font-size: 15px;
      line-height: 1.2;
      transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease;
    }

    .btn-primary {
      background: var(--accent);
      color: var(--accent-ink);
      box-shadow: 0 5px 16px rgba(11, 92, 92, 0.1);
    }

    .btn-primary:hover {
      background: var(--accent-dark);
      transform: translateY(-2px);
      box-shadow: 0 8px 22px rgba(11, 92, 92, 0.14);
    }

    .btn-primary:active {
      transform: translateY(0);
    }

    .btn-secondary {
      background: rgba(255, 255, 255, 0.82);
      border: 1px solid var(--primary);
      color: var(--primary);
    }

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

    .btn-primary:focus-visible,
    .btn-secondary:focus-visible,
    .nav-menu a:focus-visible,
    .faq-q:focus-visible {
      outline: 3px solid rgba(11, 92, 92, 0.3);
      outline-offset: 3px;
    }

    /* ===== Hero ===== */
    .cat-hero {
      position: relative;
      display: flex;
      align-items: center;
      min-height: 520px;
      padding: 170px 0 100px;
      background-image: linear-gradient(105deg, rgba(247, 244, 238, 0.97) 10%, rgba(247, 244, 238, 0.88) 68%, rgba(247, 244, 238, 0.76)), url('/assets/images/backpic/back-1.png');
      background-position: center;
      background-size: cover;
      background-repeat: no-repeat;
      border-bottom: 1px solid var(--border);
    }

    .cat-hero-content {
      max-width: 780px;
    }

    .hero-eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 15px;
      border-radius: 999px;
      background: rgba(230, 242, 240, 0.86);
      color: var(--primary);
      font-size: 14px;
      font-weight: 800;
      letter-spacing: 0.03em;
      margin-bottom: 22px;
    }

    .cat-hero h1 {
      color: var(--ink);
      font-size: clamp(36px, 5vw, 56px);
      line-height: 1.15;
      font-weight: 850;
      letter-spacing: -0.5px;
      margin-bottom: 22px;
    }

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

    .cat-hero p {
      font-size: 16px;
      line-height: 1.9;
      color: #3F514C;
      max-width: 700px;
      margin-bottom: 30px;
    }

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

    @media (max-width: 640px) {
      .cat-hero {
        min-height: 470px;
        padding: 128px 0 64px;
      }

      .cat-hero h1 {
        font-size: 34px;
        margin-bottom: 16px;
      }

      .cat-hero p {
        font-size: 15px;
      }

      .hero-actions {
        gap: 10px;
      }
    }

    /* ===== Section common ===== */
    .section-label {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 14px;
      border-radius: 999px;
      background: var(--primary-soft);
      color: var(--primary);
      font-size: 13px;
      font-weight: 800;
      letter-spacing: 0.04em;
    }

    .section-title {
      font-size: clamp(28px, 3.2vw, 42px);
      line-height: 1.25;
      color: var(--ink);
      font-weight: 820;
      letter-spacing: -0.3px;
      margin-top: 18px;
      margin-bottom: 14px;
    }

    .section-intro {
      color: var(--text-muted);
      font-size: 15px;
      line-height: 1.9;
      max-width: 760px;
    }

    .split-layout {
      display: grid;
      grid-template-columns: 1.02fr 0.98fr;
      gap: 70px;
      align-items: center;
    }

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

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

    @media (max-width: 920px) {
      .split-layout {
        grid-template-columns: 1fr;
        gap: 48px;
      }

      .split-media {
        min-height: 240px;
      }
    }

    .check-list {
      margin-top: 24px;
      display: grid;
      gap: 14px;
    }

    .check-list li {
      display: flex;
      gap: 12px;
      align-items: flex-start;
      color: #2C423D;
      font-size: 15px;
    }

    .check-list .check-ico {
      width: 22px;
      height: 22px;
      flex-shrink: 0;
      border-radius: 999px;
      background: var(--primary-soft);
      color: var(--primary);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      margin-top: 4px;
    }

    .check-list svg {
      width: 13px;
      height: 13px;
    }

    /* ===== Steps ===== */
    .step-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
      margin-top: 44px;
    }

    .step-card {
      position: relative;
      background: #ffffff;
      border: 1px solid #EDE6DC;
      border-radius: 18px;
      padding: 28px 22px 24px;
      min-height: 220px;
      box-shadow: var(--shadow-card);
      transition: transform 0.25s ease, box-shadow 0.25s ease;
    }

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

    .step-num {
      width: 46px;
      height: 46px;
      border-radius: 14px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: var(--primary-soft);
      color: var(--primary);
      font-weight: 850;
      font-size: 18px;
      margin-bottom: 20px;
    }

    .step-card h3 {
      font-size: 19px;
      font-weight: 800;
      line-height: 1.4;
      margin-bottom: 9px;
    }

    .step-card p {
      font-size: 14px;
      line-height: 1.8;
      color: var(--text-muted);
    }

    .step-card::after {
      content: "";
      position: absolute;
      top: 56px;
      right: -18px;
      width: 14px;
      height: 14px;
      border-top: 2px dashed rgba(11, 92, 92, 0.36);
      border-right: 2px dashed rgba(11, 92, 92, 0.36);
      transform: rotate(45deg);
    }

    .step-card:last-child::after {
      display: none;
    }

    @media (max-width: 960px) {
      .step-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .step-card::after {
        display: none;
      }
    }

    @media (max-width: 560px) {
      .step-grid {
        grid-template-columns: 1fr;
      }

      .step-card {
        min-height: 0;
      }
    }

    /* ===== Referral list ===== */
    .referral-list {
      margin-top: 36px;
    }

    .referral-item {
      display: grid;
      grid-template-columns: 220px 1fr;
      gap: 28px;
      background: #ffffff;
      border: 1px solid var(--border);
      border-radius: 20px;
      overflow: hidden;
      margin-bottom: 16px;
      box-shadow: var(--shadow-card);
      transition: transform 0.25s ease, box-shadow 0.25s ease;
    }

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

    .referral-thumb {
      aspect-ratio: 16 / 11;
      overflow: hidden;
      background: var(--primary-soft);
    }

    .referral-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.4s ease;
    }

    .referral-item:hover .referral-thumb img {
      transform: scale(1.04);
    }

    .referral-body {
      padding: 28px 28px 28px 0;
      align-self: center;
    }

    .referral-body h3 {
      font-size: 20px;
      color: var(--ink);
      font-weight: 800;
      margin-bottom: 8px;
    }

    .referral-body p {
      color: var(--text-muted);
      font-size: 14px;
      line-height: 1.85;
      margin-bottom: 14px;
    }

    .referral-meta {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-wrap: wrap;
    }

    .referral-link {
      display: inline-flex;
      align-items: center;
      color: var(--primary);
      font-weight: 700;
      font-size: 14px;
      gap: 6px;
      transition: color 0.2s ease;
    }

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

    .referral-link svg {
      width: 16px;
      height: 16px;
    }

    @media (max-width: 720px) {
      .referral-item {
        grid-template-columns: 1fr;
      }

      .referral-thumb {
        aspect-ratio: 16 / 9;
      }

      .referral-body {
        padding: 20px;
      }
    }

    /* ===== Notice check panel ===== */
    .notice-panel {
      background: #ffffff;
      border: 1px solid var(--border);
      border-radius: 20px;
      padding: 38px;
      margin-top: 48px;
      box-shadow: var(--shadow-card);
    }

    .notice-title {
      display: flex;
      align-items: center;
      font-size: 20px;
      font-weight: 800;
      color: var(--ink);
      margin-bottom: 18px;
      gap: 10px;
    }

    .notice-title svg {
      width: 24px;
      height: 24px;
    }

    .notice-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 11px 24px;
    }

    .notice-grid li {
      display: flex;
      gap: 9px;
      align-items: flex-start;
      font-size: 14px;
      color: #394D48;
      position: relative;
      padding-left: 18px;
    }

    .notice-grid li::before {
      content: "";
      position: absolute;
      left: 0;
      top: 10px;
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: var(--primary);
    }

    @media (max-width: 720px) {
      .notice-grid {
        grid-template-columns: 1fr;
      }
    }

    /* ===== FAQ ===== */
    .faq-list {
      max-width: 860px;
      margin: 32px auto 0;
    }

    .faq-item {
      margin-bottom: 12px;
      background: #ffffff;
      border: 1px solid var(--border);
      border-radius: 16px;
      overflow: hidden;
      transition: border-color 0.2s ease, box-shadow 0.2s ease;
    }

    .faq-item:hover {
      border-color: #CFC6BA;
      box-shadow: 0 8px 22px rgba(15, 60, 55, 0.05);
    }

    .faq-q {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      width: 100%;
      text-align: left;
      padding: 20px 24px;
      color: var(--ink);
      font-size: 16px;
      font-weight: 700;
      background: transparent;
      transition: background 0.2s ease;
    }

    .faq-q:hover {
      background: rgba(230, 242, 240, 0.4);
    }

    .faq-q .faq-arrow {
      flex-shrink: 0;
      width: 32px;
      height: 32px;
      border-radius: 999px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: var(--primary-soft);
      color: var(--primary);
      transition: transform 0.3s ease;
    }

    .faq-item[data-open="true"] .faq-arrow {
      transform: rotate(180deg);
    }

    .faq-a {
      display: none;
      padding: 0 24px 22px;
      color: var(--text-muted);
      font-size: 15px;
      line-height: 1.9;
    }

    .faq-item[data-open="true"] .faq-a {
      display: block;
    }

    @media (max-width: 520px) {
      .faq-q {
        padding: 17px 18px;
      }

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

    /* ===== Bottom CTA ===== */
    .cta-final {
      position: relative;
      background: linear-gradient(93deg, rgba(11, 92, 92, 0.97) 20%, rgba(8, 71, 71, 0.92)), url('/assets/images/backpic/back-2.png');
      background-position: center;
      background-size: cover;
      border-radius: 26px;
      overflow: hidden;
      padding: 62px 56px;
      color: #ffffff;
      margin: 0 auto;
    }

    .cta-final h2 {
      color: #ffffff;
      font-size: clamp(26px, 4vw, 38px);
      line-height: 1.3;
      font-weight: 820;
      margin-bottom: 14px;
      max-width: 760px;
    }

    .cta-final p {
      color: rgba(255, 255, 255, 0.82);
      font-size: 15px;
      max-width: 680px;
      margin-bottom: 24px;
    }

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

    .cta-final .btn-primary {
      background: var(--accent);
      color: var(--accent-ink);
    }

    .cta-final .btn-secondary {
      border-color: rgba(255, 255, 255, 0.8);
      color: #ffffff;
      background: rgba(255, 255, 255, 0.1);
    }

    .cta-final .btn-secondary:hover {
      background: rgba(255, 255, 255, 0.2);
      border-color: #fff;
    }

    .next-cats {
      display: flex;
      flex-wrap: wrap;
      gap: 18px;
      margin-top: 34px;
      border-top: 1px solid rgba(255, 255, 255, 0.18);
      padding-top: 26px;
    }

    .next-cats a {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      color: #ffffff;
      background: rgba(255, 255, 255, 0.1);
      border: 1px solid rgba(255, 255, 255, 0.24);
      padding: 9px 16px;
      border-radius: 999px;
      font-size: 14px;
      font-weight: 700;
      transition: background 0.2s ease, transform 0.2s ease;
    }

    .next-cats a:hover {
      background: rgba(255, 255, 255, 0.2);
      transform: translateY(-2px);
    }

    @media (max-width: 700px) {
      .cta-final {
        padding: 40px 24px;
        border-radius: 20px;
      }

      .cta-actions {
        flex-direction: column;
      }

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

    /* ===== Footer ===== */
    .site-footer {
      background: #082E2C;
      color: rgba(255, 255, 255, 0.78);
      margin-top: 100px;
      padding: 58px 0 28px;
      position: relative;
      z-index: 5;
    }

    .footer-top {
      display: grid;
      grid-template-columns: 1.8fr 1fr 1fr 1.1fr;
      gap: 42px;
      margin-bottom: 48px;
    }

    .footer-brand-name {
      display: flex;
      align-items: center;
      gap: 10px;
      color: #ffffff;
      font-size: 20px;
      font-weight: 820;
      line-height: 1.3;
    }

    .footer-brand-name svg {
      flex-shrink: 0;
    }

    .footer-desc {
      margin-top: 16px;
      font-size: 14px;
      line-height: 1.9;
      color: rgba(255, 255, 255, 0.78);
      max-width: 420px;
    }

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

    .footer-col-title {
      font-size: 15px;
      color: #ffffff;
      font-weight: 800;
      margin-bottom: 10px;
    }

    .footer-col a {
      color: rgba(255, 255, 255, 0.72);
      font-size: 14px;
      line-height: 1.6;
      transition: color 0.2s ease;
    }

    .footer-col a:hover {
      color: #ffffff;
      text-decoration: underline;
      text-underline-offset: 4px;
    }

    .footer-bottom {
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      gap: 12px;
      padding-top: 24px;
      border-top: 1px solid rgba(255, 255, 255, 0.14);
      font-size: 13px;
      color: rgba(255, 255, 255, 0.58);
    }

    @media (max-width: 920px) {
      .footer-top {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
      }
    }

    @media (max-width: 560px) {
      .site-footer {
        margin-top: 64px;
        padding-top: 44px;
      }

      .footer-top {
        grid-template-columns: 1fr;
        gap: 26px;
      }

      .footer-desc {
        font-size: 14px;
      }

      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
    }

    .page-margin-bottom {
      margin-bottom: 20px;
    }

/* roulang page: category2 */
:root {
      --primary: #0B5C5C;
      --primary-deep: #084747;
      --primary-soft: #E6F2F0;
      --accent: #F2A33C;
      --accent-deep: #DD8A24;
      --accent-ink: #142A2A;
      --bg: #F7F4EE;
      --card: #FFFFFF;
      --text: #1F2E2A;
      --muted: #5E6F6A;
      --border: #E5DED2;
      --safe: #2F9E6E;
      --warn: #C5543C;
      --shadow-card: 0 6px 24px rgba(15, 60, 55, 0.06);
      --shadow-lift: 0 14px 32px rgba(15, 60, 55, 0.12);
      --radius: 16px;
      --font-stack: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      background: var(--bg);
      color: var(--text);
      font-family: var(--font-stack);
      line-height: 1.75;
      font-size: 16px;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color .2s ease, background .2s ease, border-color .2s ease;
    }

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

    button,
    input,
    textarea {
      font: inherit;
    }

    button {
      border: none;
      background: none;
      cursor: pointer;
    }

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

    .section {
      padding-top: 96px;
      padding-bottom: 96px;
    }

    .section-head {
      max-width: 760px;
      margin-bottom: 48px;
    }

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

    .section-eyebrow,
    .hero-eyebrow,
    .block-eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: var(--primary-soft);
      color: var(--primary);
      border-radius: 999px;
      padding: 7px 15px;
      font-size: 13px;
      font-weight: 700;
      letter-spacing: .3px;
    }

    .block-eyebrow {
      background: rgba(255,255,255,.88);
      color: var(--primary-deep);
    }

    h1, h2, h3 {
      line-height: 1.25;
      font-weight: 800;
      letter-spacing: .2px;
      color: var(--text);
    }

    h2 {
      font-size: clamp(28px, 4vw, 38px);
      margin-top: 14px;
      margin-bottom: 12px;
    }

    h3 {
      font-size: 20px;
      line-height: 1.4;
      font-weight: 700;
    }

    p {
      color: var(--muted);
    }

    .no-wrap {
      white-space: nowrap;
    }

    /* ===== Header / Capsule nav ===== */
    .site-header {
      position: sticky;
      top: 16px;
      z-index: 999;
      padding: 0 16px;
    }

    .header-shell {
      max-width: 1200px;
      margin: 0 auto;
      background: rgba(255,255,255,.86);
      border: 1px solid rgba(11, 92, 92, .14);
      box-shadow: 0 8px 26px rgba(15, 60, 55, .08);
      border-radius: 999px;
      padding: 9px 9px 9px 22px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      backdrop-filter: blur(10px);
      transition: box-shadow .3s ease, background .3s ease;
    }

    .site-header:hover {
      background: rgba(255,255,255,.96);
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-size: 17px;
      font-weight: 800;
      letter-spacing: .2px;
      color: var(--text);
      min-width: 0;
    }

    .brand svg {
      flex: 0 0 auto;
      color: var(--primary);
    }

    .brand span {
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .nav-menu {
      display: flex;
      align-items: center;
      gap: 2px;
    }

    .nav-menu a {
      padding: 8px 14px;
      border-radius: 999px;
      font-size: 14px;
      font-weight: 600;
      color: var(--text);
      display: inline-block;
      border: 1px solid transparent;
    }

    .nav-menu a:hover {
      background: rgba(11, 92, 92, .08);
      color: var(--primary);
    }

    .nav-menu a.active {
      background: var(--primary-soft);
      color: var(--primary-deep);
      font-weight: 700;
      box-shadow: inset 0 0 0 1px rgba(11, 92, 92, .06);
    }

    .nav-toggle {
      width: 42px;
      height: 42px;
      border-radius: 999px;
      background: var(--primary-soft);
      display: none;
      align-items: center;
      justify-content: center;
      transition: background .2s;
    }

    .nav-toggle:hover {
      background: #d8ede9;
    }

    .nav-toggle svg {
      color: var(--primary);
    }

    /* ===== Buttons ===== */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 48px;
      padding: 11px 23px;
      font-size: 15px;
      font-weight: 700;
      border-radius: 8px;
      line-height: 1.2;
      transition: transform .2s ease, background .2s ease, box-shadow .2s ease, color .2s ease, border-color .2s ease;
      border: 1px solid transparent;
      text-align: center;
    }

    .btn-primary {
      background: var(--accent);
      color: var(--accent-ink);
      box-shadow: 0 10px 24px rgba(242, 163, 60, .22);
    }

    .btn-primary:hover {
      background: var(--accent-deep);
      transform: translateY(-1px);
      box-shadow: 0 14px 30px rgba(242, 163, 60, .3);
    }

    .btn-primary:active {
      transform: translateY(0);
    }

    .btn-outline {
      background: rgba(255, 255, 255, .66);
      border-color: var(--primary);
      color: var(--primary);
    }

    .btn-outline:hover {
      background: var(--primary-soft);
      border-color: var(--primary-deep);
      color: var(--primary-deep);
    }

    .btn:focus-visible {
      outline: 3px solid rgba(242, 163, 60, .55);
      outline-offset: 3px;
    }

    /* ===== Hero for category page ===== */
    .cat-hero {
      position: relative;
      overflow: hidden;
      margin-top: 16px;
      padding: 80px 0 76px;
      background-image: linear-gradient(90deg, rgba(247,244,238,.96) 0%, rgba(247,244,238,.88) 46%, rgba(247,244,238,.52) 100%), url('/assets/images/backpic/back-2.png');
      background-position: center;
      background-repeat: no-repeat;
      background-size: cover;
    }

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

    .breadcrumb {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 8px;
      font-size: 13px;
      color: var(--muted);
      margin-bottom: 22px;
    }

    .breadcrumb a {
      color: var(--primary);
      font-weight: 600;
    }

    .breadcrumb a:hover {
      text-decoration: underline;
    }

    .breadcrumb span {
      color: var(--muted);
    }

    .hero-title {
      font-size: clamp(32px, 5vw, 54px);
      line-height: 1.18;
      font-weight: 800;
      margin: 20px 0 18px;
      letter-spacing: .2px;
    }

    .hero-title .hero-hl {
      color: var(--primary);
      display: inline-block;
    }

    .hero-lead {
      font-size: 17px;
      line-height: 1.85;
      color: var(--muted);
      max-width: 650px;
      margin-top: 0;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 28px;
    }

    /* ===== Intro / split section ===== */
    .split-grid {
      display: grid;
      grid-template-columns: 1.08fr .92fr;
      gap: 60px;
      align-items: center;
    }

    .split-copy {
      padding-right: 4px;
    }

    .split-copy h2 {
      margin-bottom: 16px;
    }

    .split-copy p {
      margin-bottom: 18px;
      line-height: 1.9;
    }

    .intro-list {
      list-style: none;
      margin-top: 26px;
      display: grid;
      gap: 15px;
    }

    .intro-list li {
      display: flex;
      align-items: flex-start;
      gap: 13px;
      background: #fff;
      border: 1px solid var(--border);
      border-radius: 14px;
      padding: 14px 16px;
      box-shadow: 0 4px 14px rgba(15,60,55,.03);
    }

    .intro-list svg {
      flex: 0 0 auto;
      width: 20px;
      height: 20px;
      color: var(--primary);
      margin-top: 2px;
    }

    .intro-list strong {
      font-weight: 700;
      color: var(--text);
      display: block;
      margin-bottom: 2px;
    }

    .intro-list span {
      color: var(--muted);
      font-size: 14px;
      line-height: 1.65;
    }

    .split-media {
      position: relative;
    }

    .split-media::before {
      content: '';
      position: absolute;
      inset: 24px -18px -18px 24px;
      background: var(--primary-soft);
      border-radius: 22px;
      z-index: 0;
    }

    .split-media img {
      position: relative;
      width: 100%;
      object-fit: cover;
      border-radius: 22px;
      box-shadow: var(--shadow-card);
      z-index: 1;
    }

    /* ===== Methods list ===== */
    .methods-section {
      background: #EDF3F0;
      border-top: 1px solid rgba(11,92,92,.05);
      border-bottom: 1px solid rgba(11,92,92,.05);
    }

    .way-list {
      display: flex;
      flex-direction: column;
      gap: 18px;
      margin-top: 10px;
    }

    .way-item {
      background: var(--card);
      border: 1px solid var(--border);
      border-radius: 20px;
      padding: 22px;
      display: grid;
      grid-template-columns: 190px 1fr auto;
      gap: 26px;
      align-items: center;
      box-shadow: var(--shadow-card);
      transition: transform .25s ease, box-shadow .25s ease;
    }

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

    .way-media img {
      width: 190px;
      height: 120px;
      object-fit: cover;
      border-radius: 14px;
      background: #e1ece9;
    }

    .way-tag {
      display: inline-block;
      background: var(--primary-soft);
      color: var(--primary-deep);
      font-size: 12px;
      font-weight: 700;
      padding: 3px 10px;
      border-radius: 999px;
      margin-bottom: 8px;
    }

    .way-item h3 {
      margin-bottom: 8px;
    }

    .way-item p {
      font-size: 14px;
      line-height: 1.8;
      max-width: 660px;
    }

    .way-link {
      display: inline-flex;
      align-items: center;
      gap: 5px;
      color: var(--primary);
      font-weight: 700;
      font-size: 14px;
      white-space: nowrap;
    }

    .way-link:hover {
      color: var(--primary-deep);
      text-decoration: underline;
    }

    /* ===== Safety note panel ===== */
    .guard-panel {
      background: var(--primary-soft);
      border-radius: 24px;
      padding: 52px;
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 52px;
      align-items: center;
      position: relative;
      overflow: hidden;
    }

    .guard-panel::after {
      content: '';
      position: absolute;
      right: -42px;
      bottom: -42px;
      width: 160px;
      height: 160px;
      border: 18px solid rgba(11,92,92,.06);
      border-radius: 50%;
    }

    .guard-copy h2 {
      color: #063f3f;
    }

    .guard-note {
      background: rgba(255,255,255,.78);
      border-radius: 18px;
      padding: 20px;
      margin-top: 20px;
      border: 1px solid rgba(11,92,92,.1);
    }

    .guard-note strong {
      display: block;
      font-size: 15px;
      color: var(--text);
      margin-bottom: 6px;
    }

    .guard-note p {
      font-size: 14px;
      color: var(--muted);
    }

    .guard-list {
      list-style: none;
      display: grid;
      gap: 16px;
    }

    .guard-list li {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: 16px;
      padding: 18px;
      display: flex;
      align-items: flex-start;
      gap: 14px;
      box-shadow: 0 6px 16px rgba(11,92,92,.05);
    }

    .guard-list .g-icon {
      flex: 0 0 auto;
      width: 38px;
      height: 38px;
      border-radius: 12px;
      background: var(--primary-soft);
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .guard-list .g-icon svg {
      width: 20px;
      height: 20px;
    }

    .guard-list strong {
      display: block;
      margin-bottom: 4px;
    }

    .guard-list span {
      font-size: 14px;
      color: var(--muted);
      line-height: 1.7;
    }

    /* ===== Steps ===== */
    .step-section {
      background: #fff;
      border-bottom: 1px solid rgba(229,222,210,.6);
    }

    .step-track {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 44px;
      position: relative;
    }

    .step-card {
      background: var(--bg);
      border: 1px solid var(--border);
      border-radius: 18px;
      padding: 28px 22px 24px;
      position: relative;
      z-index: 1;
      transition: transform .25s ease, box-shadow .25s ease;
    }

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

    .step-num {
      font-size: 30px;
      font-weight: 800;
      color: var(--primary);
      opacity: .45;
      line-height: 1;
      margin-bottom: 14px;
      display: block;
    }

    .step-card h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .step-card p {
      font-size: 14px;
      line-height: 1.75;
      color: var(--muted);
    }

    /* ===== FAQ ===== */
    .faq-wrap {
      max-width: 860px;
      margin: 0 auto;
      margin-top: 42px;
    }

    .faq-item {
      background: var(--card);
      border: 1px solid var(--border);
      border-radius: 16px;
      margin-bottom: 12px;
      overflow: hidden;
      transition: box-shadow .25s ease, border-color .25s ease;
    }

    .faq-item.open {
      box-shadow: var(--shadow-card);
      border-color: rgba(11,92,92,.18);
    }

    .faq-q {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      width: 100%;
      padding: 20px 22px;
      background: none;
      border: none;
      color: var(--text);
      font-size: 16px;
      font-weight: 700;
      text-align: left;
    }

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

    .faq-q svg {
      flex: 0 0 auto;
      width: 18px;
      height: 18px;
      transition: transform .3s ease;
      color: var(--primary);
    }

    .faq-item.open .faq-q svg {
      transform: rotate(180deg);
    }

    .faq-a {
      max-height: 0;
      overflow: hidden;
      transition: max-height .35s ease;
    }

    .faq-item.open .faq-a {
      max-height: 420px;
    }

    .faq-a-inner {
      padding: 0 22px 22px;
      font-size: 15px;
      line-height: 1.9;
      color: var(--muted);
      border-top: 1px solid var(--border);
      padding-top: 16px;
    }

    /* ===== CTA ===== */
    .cta-zone {
      padding: 90px 0;
      background-image: linear-gradient(120deg, rgba(11,92,92,.94) 0%, rgba(6,62,58,.98) 100%), url('/assets/images/backpic/back-3.png');
      background-size: cover;
      background-position: center;
    }

    .cta-card {
      max-width: 760px;
      margin: 0 auto;
      text-align: center;
      color: #fff;
    }

    .cta-card h2 {
      color: #fff;
      font-size: clamp(28px, 4vw, 42px);
      margin-bottom: 16px;
    }

    .cta-card p {
      color: rgba(255,255,255,.8);
      line-height: 1.9;
      margin-bottom: 28px;
      font-size: 16px;
    }

    .cta-card .hero-actions {
      justify-content: center;
    }

    .cta-card .btn-outline {
      background: transparent;
      border-color: rgba(255,255,255,.75);
      color: #fff;
    }

    .cta-card .btn-outline:hover {
      background: rgba(255,255,255,.15);
      border-color: #fff;
      color: #fff;
    }

    .cta-card .btn-primary:hover {
      background: var(--accent);
      color: var(--accent-ink);
    }

    /* ===== Footer ===== */
    .site-footer {
      background: #0C3230;
      color: #D8E5E1;
      padding: 76px 0 0;
      margin-top: 0;
    }

    .site-footer a {
      color: #c2d6d1;
    }

    .site-footer a:hover {
      color: #fff;
      text-decoration: none;
    }

    .footer-top {
      display: grid;
      grid-template-columns: 1.7fr 1fr 1fr 1fr;
      gap: 44px;
      padding-bottom: 52px;
    }

    .footer-brand-name {
      display: flex;
      align-items: center;
      gap: 9px;
      font-size: 19px;
      font-weight: 800;
      color: #fff;
      margin-bottom: 14px;
    }

    .footer-brand-name svg {
      color: #F2A33C;
    }

    .footer-desc {
      font-size: 14px;
      line-height: 1.9;
      color: #A8C2BD;
      margin-top: 10px;
    }

    .footer-col-title {
      color: #fff;
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 16px;
    }

    .footer-col {
      display: flex;
      flex-direction: column;
      gap: 10px;
      font-size: 14px;
    }

    .footer-bottom {
      border-top: 1px solid rgba(255,255,255,.13);
      padding: 22px 0;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      color: #94b1ab;
      font-size: 13px;
    }

    /* ===== Responsive / Mobile ===== */
    @media (max-width: 1024px) {
      .nav-menu {
        display: none;
      }

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

      body.nav-open .header-shell {
        flex-wrap: wrap;
        border-radius: 26px;
        padding-bottom: 12px;
      }

      body.nav-open .nav-menu {
        display: flex;
        flex-direction: column;
        align-items: stretch;
        width: 100%;
        border-top: 1px solid var(--border);
        margin-top: 6px;
        padding: 14px 2px 2px;
      }

      .nav-menu a {
        text-align: center;
        border-radius: 12px;
      }

      .section {
        padding-top: 72px;
        padding-bottom: 72px;
      }

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

      .split-media {
        max-width: 620px;
        margin: 0 auto;
      }

      .guard-panel {
        grid-template-columns: 1fr;
        gap: 36px;
        padding: 38px 30px;
      }

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

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

    @media (max-width: 768px) {
      .cat-hero {
        padding: 56px 0 60px;
      }

      .hero-title {
        font-size: 30px;
        line-height: 1.25;
      }

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

      h2 {
        font-size: 27px;
      }

      .section {
        padding-top: 56px;
        padding-bottom: 56px;
      }

      .way-item {
        grid-template-columns: 130px 1fr;
        gap: 18px;
        padding: 18px;
      }

      .way-media img {
        width: 130px;
        height: 104px;
      }

      .way-link {
        grid-column: 2;
        margin-top: -8px;
      }

      .step-track {
        grid-template-columns: 1fr;
      }

      .step-track::before {
        display: none;
      }

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

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

      .guard-panel {
        padding: 30px 20px;
        border-radius: 20px;
      }
    }

    @media (max-width: 640px) {
      .site-header {
        top: 8px;
        padding: 0 12px;
      }

      .header-shell {
        padding: 8px 8px 8px 16px;
      }

      .brand {
        font-size: 15px;
        gap: 8px;
      }

      .container-gj {
        padding-left: 18px;
        padding-right: 18px;
      }

      .section {
        padding-top: 48px;
        padding-bottom: 48px;
      }

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

      .way-media img {
        width: 100%;
        height: 170px;
      }

      .way-link {
        grid-column: auto;
        margin-top: 2px;
      }

      .split-media::before {
        display: none;
      }

      .guard-panel {
        padding: 26px 16px;
      }

      .footer-top {
        grid-template-columns: 1fr;
        gap: 30px;
      }

      .footer-bottom {
        flex-direction: column;
      }
    }

/* roulang page: category3 */
:root {
    --primary: #0B5C5C;
    --primary-dark: #084747;
    --brand-light: #E6F2F0;
    --cta: #F2A33C;
    --cta-dark: #DD8A24;
    --ink: #1F2E2A;
    --muted: #5E6F6A;
    --border: #E5DED2;
    --warm-bg: #F7F4EE;
    --card-bg: #FFFFFF;
    --shadow: 0 6px 24px rgba(15, 60, 55, 0.06);
    --shadow-hover: 0 14px 32px rgba(15, 60, 55, 0.12);
    --radius: 16px;
  }

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

  html {
    scroll-behavior: smooth;
  }

  body {
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
    background: var(--warm-bg);
    color: var(--ink);
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
  }

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

  a {
    text-decoration: none;
    color: inherit;
  }

  button {
    font-family: inherit;
  }

  .container-gj {
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 24px;
    padding-right: 24px;
  }

  .section-gap {
    padding-top: 92px;
    padding-bottom: 92px;
  }

  .section-tag {
    display: inline-flex;
    align-items: center;
    background: var(--brand-light);
    color: var(--primary);
    font-size: 14px;
    font-weight: 600;
    border-radius: 999px;
    padding: 6px 16px;
    margin-bottom: 16px;
    letter-spacing: 0.02em;
  }

  .section-head {
    max-width: 760px;
    margin-bottom: 48px;
  }

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

  .section-head h2 {
    font-size: clamp(26px, 4vw, 38px);
    line-height: 1.2;
    font-weight: 800;
    color: var(--ink);
    letter-spacing: -0.02em;
  }

  .section-head p {
    margin-top: 16px;
    font-size: 16px;
    color: var(--muted);
    max-width: 680px;
  }

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

  /* header / nav */
  .site-header {
    position: sticky;
    top: 14px;
    z-index: 50;
    margin: 18px 0 30px;
  }

  .nav-flex {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    background: rgba(255, 255, 255, 0.82);
    border: 1px solid rgba(11, 92, 92, 0.10);
    border-radius: 999px;
    padding: 8px 10px 8px 20px;
    box-shadow: var(--shadow);
    transition: box-shadow 0.3s ease, background 0.3s ease;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
  }

  .site-header.scrolled .nav-flex {
    background: rgba(255, 255, 255, 0.92);
    box-shadow: 0 10px 30px rgba(15, 60, 55, 0.10);
  }

  .brand-lock {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--primary);
    transition: opacity 0.25s;
  }

  .brand-lock:hover {
    opacity: 0.82;
  }

  .brand-lock svg {
    flex-shrink: 0;
    color: var(--primary);
  }

  .brand-lock span {
    font-size: 18px;
    font-weight: 800;
    white-space: nowrap;
    letter-spacing: -0.01em;
  }

  .nav-menu {
    display: flex;
    align-items: center;
    gap: 2px;
  }

  .nav-menu a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 9px 18px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 500;
    color: var(--muted);
    transition: background 0.2s, color 0.2s;
  }

  .nav-menu a:hover {
    background: rgba(11, 92, 92, 0.08);
    color: var(--primary);
  }

  .nav-menu a.active {
    background: var(--brand-light);
    color: var(--primary);
    font-weight: 700;
  }

  .nav-toggle {
    display: none;
    width: 42px;
    height: 42px;
    border-radius: 999px;
    border: 1px solid rgba(11, 92, 92, 0.12);
    background: #fff;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
  }

  .nav-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
    transition: transform 0.25s, opacity 0.25s;
  }

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

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

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

  @media (max-width: 920px) {
    .nav-toggle {
      display: inline-flex;
    }

    .nav-flex {
      flex-wrap: wrap;
      border-radius: 24px;
    }

    .nav-menu {
      display: none;
      width: 100%;
      flex-direction: column;
      align-items: stretch;
      padding: 10px 16px;
      border-top: 1px solid rgba(11, 92, 92, 0.08);
      margin-top: 4px;
    }

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

    .nav-menu a {
      justify-content: flex-start;
      padding: 12px 14px;
      font-size: 16px;
    }
  }

  /* banner */
  .category-banner {
    position: relative;
    border-radius: 28px;
    overflow: hidden;
    min-height: 450px;
    display: flex;
    align-items: center;
    box-shadow: var(--shadow);
  }

  .banner-bg,
  .banner-shade {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
  }

  .banner-bg {
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
  }

  .banner-shade {
    background: linear-gradient(
      to right,
      rgba(247, 244, 238, 0.97) 0%,
      rgba(247, 244, 238, 0.90) 48%,
      rgba(247, 244, 238, 0.62) 100%
    );
  }

  .banner-content {
    position: relative;
    z-index: 2;
    max-width: 640px;
    padding: 56px 24px;
  }

  .banner-content .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 18px;
    padding: 7px 16px;
    border-radius: 999px;
    background: rgba(11, 92, 92, 0.08);
    color: var(--primary);
    font-size: 14px;
    font-weight: 600;
  }

  .banner-content h1 {
    font-size: clamp(34px, 6vw, 54px);
    line-height: 1.13;
    font-weight: 800;
    color: var(--primary-dark);
    margin-bottom: 20px;
    letter-spacing: -0.02em;
  }

  .banner-content p {
    font-size: 17px;
    color: var(--ink);
    max-width: 560px;
    line-height: 1.8;
    margin-bottom: 28px;
  }

  .banner-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
  }

  /* Buttons */
  .btn-primary,
  .btn-ghost,
  .btn-ghost-light {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 0 24px;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 700;
    transition: background 0.2s, color 0.2s, border-color 0.2s, transform 0.2s, box-shadow 0.2s;
    cursor: pointer;
  }

  .btn-primary {
    background: var(--cta);
    color: #142A2A;
    border: 1px solid rgba(0, 0, 0, 0.02);
  }

  .btn-primary:hover {
    background: var(--cta-dark);
    color: #142A2A;
    transform: translateY(-1px);
    box-shadow: 0 8px 20px rgba(242, 163, 60, 0.25);
  }

  .btn-primary:focus-visible,
  .btn-ghost:focus-visible,
  .btn-ghost-light:focus-visible {
    outline: none;
    box-shadow: 0 0 0 4px rgba(11, 92, 92, 0.18);
  }

  .btn-primary:active {
    transform: translateY(1px);
  }

  .btn-ghost {
    background: rgba(255, 255, 255, 0.7);
    color: var(--primary);
    border: 1px solid rgba(11, 92, 92, 0.45);
  }

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

  .btn-ghost-light {
    background: rgba(255, 255, 255, 0.9);
    color: var(--primary-dark);
    border: 1px solid rgba(255, 255, 255, 0.6);
  }

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

  /* intro */
  .intro-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 52px;
    align-items: center;
  }

  .intro-copy p {
    margin-top: 14px;
    font-size: 16px;
    color: var(--muted);
  }

  .intro-copy p strong {
    color: var(--primary);
    font-weight: 600;
  }

  .intro-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 26px;
  }

  .intro-tags span {
    display: inline-block;
    background: #fff;
    border: 1px solid var(--border);
    color: var(--ink);
    padding: 7px 15px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 500;
    box-shadow: 0 2px 6px rgba(15, 60, 55, 0.03);
  }

  .intro-media {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow);
  }

  .intro-media img {
    width: 100%;
    height: 330px;
    object-fit: cover;
  }

  .intro-media::after {
    content: "";
    position: absolute;
    inset: 0;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 20px;
    pointer-events: none;
  }

  /* guide */
  .guide-section {
    background: #fff;
    border-top: 1px solid rgba(229, 222, 210, 0.55);
    border-bottom: 1px solid rgba(229, 222, 210, 0.55);
  }

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

  .guide-item {
    display: flex;
    gap: 22px;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 24px;
    box-shadow: var(--shadow);
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s;
  }

  .guide-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(11, 92, 92, 0.22);
  }

  .guide-thumb {
    width: 112px;
    min-width: 112px;
    height: 112px;
    border-radius: 14px;
    overflow: hidden;
    background: var(--brand-light);
  }

  .guide-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

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

  .guide-cat {
    display: inline-flex;
    align-self: flex-start;
    background: var(--brand-light);
    color: var(--primary);
    font-size: 12px;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 999px;
    margin-bottom: 10px;
  }

  .guide-body h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--ink);
    line-height: 1.4;
    margin-bottom: 8px;
  }

  .guide-body p {
    font-size: 14px;
    color: var(--muted);
    line-height: 1.7;
  }

  /* step */
  .step-panel {
    background: var(--brand-light);
    border-radius: 28px;
    padding: 56px;
    position: relative;
    overflow: hidden;
  }

  .step-panel::after {
    content: "";
    position: absolute;
    width: 220px;
    height: 220px;
    right: -70px;
    top: -80px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.34);
    pointer-events: none;
  }

  .step-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    position: relative;
    z-index: 1;
    margin-top: 12px;
  }

  .step-item {
    position: relative;
    background: #fff;
    padding: 26px 22px;
    border-radius: 18px;
    box-shadow: var(--shadow);
  }

  .step-item-num {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    color: #fff;
    font-size: 17px;
    font-weight: 800;
    margin-bottom: 18px;
  }

  .step-item h3 {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--ink);
  }

  .step-item p {
    font-size: 14px;
    color: var(--muted);
    line-height: 1.7;
  }

  .step-item::before {
    content: "";
    position: absolute;
    right: -23px;
    top: 45px;
    width: 22px;
    height: 2px;
    background: var(--cta);
    opacity: 0.65;
  }

  .step-item:last-child::before {
    display: none;
  }

  /* faq */
  .faq-wrapper {
    max-width: 860px;
    margin-left: auto;
    margin-right: auto;
  }

  .faq-list {
    margin-top: 8px;
  }

  .faq-item {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 16px;
    margin-bottom: 14px;
    overflow: hidden;
    transition: box-shadow 0.22s ease;
  }

  .faq-item.active {
    box-shadow: var(--shadow);
    border-color: rgba(11, 92, 92, 0.25);
  }

  .faq-q {
    width: 100%;
    background: transparent;
    border: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    text-align: left;
    padding: 22px 24px;
    font-size: 16px;
    font-weight: 600;
    color: var(--ink);
    cursor: pointer;
  }

  .faq-q .faq-icon {
    flex-shrink: 0;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: var(--brand-light);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 18px;
    line-height: 1;
    transition: transform 0.3s ease, background 0.3s ease;
  }

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

  .faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }

  .faq-a-inner {
    padding: 0 24px 22px;
    font-size: 15px;
    color: var(--muted);
    line-height: 1.8;
  }

  /* related category */
  .extra-links-row {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 34px;
    justify-content: center;
  }

  .extra-link-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: #fff;
    border: 1px solid var(--border);
    color: var(--primary);
    padding: 10px 20px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.2s;
  }

  .extra-link-pill:hover {
    border-color: var(--primary);
    background: var(--brand-light);
  }

  /* cta */
  .cta-area {
    padding-bottom: 80px;
  }

  .cta-box {
    position: relative;
    border-radius: 28px;
    overflow: hidden;
    padding: 68px 64px;
    background-image: linear-gradient(rgba(11, 92, 92, 0.92), rgba(8, 71, 71, 0.92)), url("/assets/images/backpic/back-3.png");
    background-size: cover;
    background-position: center;
    color: #fff;
    box-shadow: var(--shadow-hover);
    text-align: center;
  }

  .cta-box h2 {
    font-size: clamp(26px, 4.5vw, 40px);
    line-height: 1.2;
    font-weight: 800;
    margin-bottom: 14px;
  }

  .cta-box p {
    max-width: 620px;
    margin: 0 auto 28px;
    font-size: 16px;
    color: rgba(255, 255, 255, 0.85);
  }

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

  /* footer */
  .site-footer {
    background: #0F3838;
    color: rgba(255, 255, 255, 0.84);
    padding-top: 64px;
    padding-bottom: 32px;
    border-top-left-radius: 28px;
    border-top-right-radius: 28px;
  }

  .footer-top {
    display: grid;
    grid-template-columns: 1.8fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 36px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  }

  .footer-brand-name {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #fff;
    font-size: 18px;
    font-weight: 800;
  }

  .footer-desc {
    max-width: 360px;
    margin-top: 15px;
    font-size: 14px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.65);
  }

  .footer-col-title {
    color: #fff;
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 16px;
  }

  .site-footer .footer-col a {
    display: block;
    color: rgba(255, 255, 255, 0.68);
    font-size: 14px;
    padding: 5px 0;
    transition: color 0.2s, padding-left 0.2s;
  }

  .site-footer .footer-col a:hover {
    color: #fff;
    padding-left: 4px;
  }

  .footer-bottom {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    padding-top: 24px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
  }

  /* responsive */
  @media (max-width: 1024px) {
    .step-grid {
      grid-template-columns: repeat(2, 1fr);
      gap: 18px;
    }

    .step-item::before {
      display: none;
    }

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

    .intro-grid {
      gap: 36px;
    }
  }

  @media (max-width: 768px) {
    .section-gap {
      padding-top: 56px;
      padding-bottom: 56px;
    }

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

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

    .guide-grid {
      grid-template-columns: 1fr;
      gap: 18px;
    }

    .guide-item {
      flex-direction: row;
      padding: 20px;
    }

    .guide-thumb {
      width: 100px;
      min-width: 100px;
      height: 100px;
    }

    .step-panel {
      padding: 38px 20px;
    }

    .cta-box {
      padding: 48px 20px;
    }

    .site-header {
      top: 10px;
      margin: 10px 0 22px;
    }

    .banner-content {
      padding: 40px 16px;
    }
  }

  @media (max-width: 640px) {
    .brand-lock span {
      font-size: 15px;
    }

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

    .category-banner {
      min-height: 400px;
      border-radius: 22px;
    }

    .banner-content h1 {
      font-size: 32px;
    }

    .banner-content p {
      font-size: 15px;
    }

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

    .btn-primary,
    .btn-ghost,
    .btn-ghost-light {
      width: 100%;
    }

    .guide-item {
      flex-direction: column;
    }

    .guide-thumb {
      width: 100%;
      height: 150px;
      min-width: 0;
    }

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

    .footer-top {
      grid-template-columns: 1fr;
      gap: 26px;
    }

    .footer-bottom {
      flex-direction: column;
    }
  }

/* roulang page: category4 */
:root {
    --brand: #0B5C5C;
    --brand-deep: #084747;
    --brand-soft: #E6F2F0;
    --amber: #F2A33C;
    --amber-deep: #DD8A24;
    --amber-ink: #142A2A;
    --paper: #F7F4EE;
    --card: #FFFFFF;
    --text: #1F2E2A;
    --muted: #5E6F6A;
    --line: #E5DED2;
    --safe: #2F9E6E;
    --alert: #C5543C;
    --radius: 16px;
    --radius-lg: 20px;
    --shadow-card: 0 6px 24px rgba(15,60,55,.06);
    --shadow-hover: 0 14px 32px rgba(15,60,55,.12);
    --font-cn: "PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
  }
  * { box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body {
    margin: 0;
    font-family: var(--font-cn);
    background: var(--paper);
    color: var(--text);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
  }
  a { color: inherit; text-decoration: none; }
  img { max-width: 100%; display: block; }
  button, input, textarea { font: inherit; }
  .container-gj { max-width: 1200px; margin: 0 auto; padding-left: 24px; padding-right: 24px; }
  .section-pad { padding: 96px 0; }
  .title-kicker {
    display: inline-flex; align-items: center; gap: 8px;
    background: var(--brand-soft); color: var(--brand);
    font-size: 14px; font-weight: 700;
    padding: 7px 16px; border-radius: 999px; letter-spacing: .02em;
  }
  .sec-title { font-size: 38px; line-height: 1.2; font-weight: 800; color: var(--text); letter-spacing: -.01em; margin: 10px 0 0; }
  .sec-lead { font-size: 17px; color: var(--muted); max-width: 640px; margin: 18px 0 0; line-height: 1.85; }
  .btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 9px;
    min-height: 46px; padding: 0 22px; border-radius: 8px;
    font-size: 15px; font-weight: 700; letter-spacing: .02em;
    cursor: pointer; border: 1px solid transparent; transition: all .25s ease;
    white-space: nowrap;
  }
  .btn:focus-visible { outline: 3px solid rgba(11,92,92,.38); outline-offset: 2px; }
  .btn-primary { background: var(--amber); color: var(--amber-ink); }
  .btn-primary:hover { background: var(--amber-deep); transform: translateY(-1px); }
  .btn-primary:active { transform: translateY(1px); background: #C97A1A; }
  .btn-outline { background: #fffdf9; border-color: rgba(11,92,92,.45); color: var(--brand); }
  .btn-outline:hover { border-color: var(--brand); background: var(--brand-soft); color: var(--brand-deep); }
  .btn-white { background: #fff; color: var(--brand-deep); }
  .btn-white:hover { background: var(--brand-soft); color: var(--brand-deep); }

  /* navigation */
  .site-header {
    position: fixed; top: 0; left: 0; width: 100%; z-index: 80;
    padding: 22px 24px 0; transition: padding .3s ease;
  }
  .site-header .header-inner {
    max-width: 1260px; margin: 0 auto;
    display: flex; align-items: center; justify-content: space-between; gap: 24px;
    background: rgba(255,255,255,.86);
    border: 1px solid rgba(229,222,210,.88);
    backdrop-filter: blur(16px);
    box-shadow: 0 8px 30px rgba(15,60,55,.07);
    border-radius: 999px;
    padding: 10px 14px 10px 20px;
    transition: background .3s ease, box-shadow .3s ease;
  }
  .site-header.is-scrolled { padding-top: 12px; }
  .site-header.is-scrolled .header-inner { background: rgba(255,255,255,.94); box-shadow: 0 12px 34px rgba(15,60,55,.11); }
  .brand-group { display: inline-flex; align-items: center; gap: 10px; color: var(--brand-deep); font-weight: 800; font-size: 18px; letter-spacing: -.01em; flex: none; }
  .brand-group svg { width: 22px; height: 22px; flex: none; }
  .brand-name-full { line-height: 1.3; }
  .nav-menu { display: flex; align-items: center; gap: 4px; }
  .nav-menu a {
    border-radius: 999px; padding: 9px 16px;
    font-size: 14px; font-weight: 600; color: #43534e;
    transition: background .2s ease,color .2s ease;
  }
  .nav-menu a:hover { background: rgba(11,92,92,.1); color: var(--brand); }
  .nav-menu a.active { background: var(--brand-soft); color: var(--brand); font-weight: 700; }
  .nav-toggle { display: none; width: 38px; height: 38px; border: 1px solid var(--line); background: #fff; border-radius: 999px; align-items: center; justify-content: center; cursor: pointer; color: var(--brand); }

  /* hero */
  .category-hero { position: relative; margin: 0; padding: 156px 0 96px; overflow: hidden; }
  .hero-bg { position: absolute; inset: 0; background-image: url('/assets/images/backpic/back-2.png'); background-size: cover; background-position: center; }
  .hero-veil { position: absolute; inset: 0; background: linear-gradient(120deg, rgba(247,244,238,.98) 0%, rgba(230,242,240,.93) 58%, rgba(230,242,240,.78) 100%); }
  .category-hero .hero-main { position: relative; z-index: 2; max-width: 800px; }
  .category-hero .hero-tag { display: inline-flex; align-items: center; gap: 6px; font-weight: 600; font-size: 14px; color: var(--brand); background: #fff; border: 1px solid rgba(11,92,92,.2); border-radius: 999px; padding: 6px 14px; box-shadow: 0 2px 10px rgba(15,60,55,.04); }
  .category-hero h1 { font-size: 52px; line-height: 1.15; font-weight: 800; color: var(--text); margin: 22px 0 16px; letter-spacing: -.02em; }
  .category-hero h1 .word-key { color: var(--brand); white-space: nowrap; }
  .hero-copy { font-size: 18px; line-height: 1.9; color: #435950; max-width: 680px; margin: 18px 0 0; }
  .hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 34px; }
  .hero-note { display: flex; gap: 12px; margin-top: 32px; color: var(--muted); font-size: 14px; flex-wrap: wrap; }
  .hero-note .mi { display: inline-flex; align-items: center; gap: 6px; background: rgba(255,255,255,.8); border: 1px solid rgba(229,222,210,.7); border-radius: 999px; padding: 5px 12px; }

  /* intro */
  .guide-intro { display: grid; grid-template-columns: 1.03fr .97fr; gap: 52px; align-items: center; }
  .intro-media { position: relative; }
  .intro-media .frame-main { background: var(--brand); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-card); transform: rotate(-1.2deg); }
  .intro-media .frame-main img { width: 100%; height: 320px; object-fit: cover; }
  .intro-media .frame-mini { position: absolute; right: -16px; bottom: -14px; background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 12px 16px; box-shadow: var(--shadow-hover); display: flex; gap: 10px; align-items: center; }
  .intro-soft { display: grid; grid-template-columns: repeat(2,1fr); gap: 12px 0; margin-top: 28px; }
  .intro-pill { display: flex; gap: 10px; align-items: flex-start; font-size: 15px; color: #445851; border-top: 1px dashed #d2c9bc; padding-top: 12px; }

  /* notice types */
  .notice-card { background: #fff; border: 1px solid #eee4d8; border-radius: var(--radius); padding: 30px 26px; box-shadow: var(--shadow-card); position: relative; overflow: hidden; transition: transform .25s ease, box-shadow .25s ease; }
  .notice-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); }
  .notice-card::after { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 4px; background: currentColor; opacity: .75; }
  .notice-card.type-plan::after { color: var(--brand); }
  .notice-card.type-feature::after { color: var(--safe); }
  .notice-card.type-security::after { color: var(--alert); }
  .notice-icon { width: 48px; height: 48px; border-radius: 12px; display: flex; align-items: center; justify-content: center; background: var(--brand-soft); color: var(--brand); font-size: 21px; margin-bottom: 18px; }
  .notice-card .icon-feature { background: #E8F6EC; color: var(--safe); }
  .notice-card .icon-security { background: #FBEAE5; color: var(--alert); }
  .notice-card h3 { font-size: 20px; font-weight: 800; margin: 0 0 10px; color: var(--text); }
  .notice-card p { font-size: 14px; color: var(--muted); margin: 0; line-height: 1.8; }
  .notice-tag { display: inline-flex; align-items: center; gap: 4px; font-size: 12px; font-weight: 700; padding: 3px 10px; border-radius: 999px; background: #f1ede5; color: #6d6255; margin-top: 16px; }
  .tag-safe { background: #E8F6EC; color: var(--safe); }
  .tag-warn { background: #FFF3DF; color: #B7680A; }
  .tag-error { background: #FBEAE5; color: var(--alert); }

  /* process */
  .step-flow { display: grid; grid-template-columns: repeat(3,1fr); gap: 0; position: relative; }
  .step-flow .step-item { position: relative; padding: 24px 26px; }
  .step-flow .step-item::after { content: ''; position: absolute; right: -38px; top: 58px; width: 76px; height: 2px; border-top: 2px dashed #bcb1a2; z-index: 1; }
  .step-flow .step-item:last-child::after { display: none; }
  .step-num { width: 46px; height: 46px; border-radius: 50%; background: var(--brand); color: #fff; font-size: 18px; font-weight: 800; display: flex; align-items: center; justify-content: center; box-shadow: 0 0 0 6px var(--brand-soft); }
  .step-flow .step-item h3 { font-size: 18px; margin: 18px 0 8px; font-weight: 800; }
  .step-flow .step-item p { font-size: 14px; color: var(--muted); margin: 0; }
  .step-card { background: #fff; border: 1px solid #eee4d8; border-radius: var(--radius); padding: 8px 10px 26px; box-shadow: var(--shadow-card); height: 100%; }

  /* status */
  .status-panel { border-radius: var(--radius-lg); padding: 48px; background: #fff; border: 1px solid #eee4d8; box-shadow: var(--shadow-card); display: grid; grid-template-columns: 1.1fr 2fr; gap: 46px; align-items: center; }
  .status-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 14px; }
  .status-cell { border: 1px solid var(--line); border-radius: 14px; padding: 20px 18px; background: #fffdf9; }
  .status-cell .status-ic { font-size: 20px; margin-bottom: 10px; display: block; }
  .status-cell strong { display: block; font-size: 16px; color: var(--text); margin-bottom: 6px; }
  .status-cell span { font-size: 13px; line-height: 1.7; color: var(--muted); display: block; }

  /* faq */
  .faq-list { max-width: 860px; margin: 0 auto; display: grid; gap: 14px; }
  .faq-item { background: #fff; border: 1px solid #eee4d8; border-radius: 14px; overflow: hidden; box-shadow: 0 4px 16px rgba(15,60,55,.04); transition: border .2s ease; }
  .faq-item[open] { border-color: rgba(11,92,92,.42); }
  .faq-item summary { list-style: none; cursor: pointer; display: flex; align-items: center; justify-content: space-between; gap: 16px; font-weight: 700; font-size: 16px; color: var(--text); padding: 18px 22px; }
  .faq-item summary::-webkit-details-marker { display: none; }
  .faq-item .faq-arrow { width: 28px; height: 28px; border-radius: 50%; background: var(--brand-soft); color: var(--brand); display: flex; align-items: center; justify-content: center; flex: none; transition: transform .3s ease; font-size: 13px; }
  .faq-item[open] .faq-arrow { transform: rotate(180deg); background: var(--brand); color: #fff; }
  .faq-item .faq-body { padding: 0 22px 18px; color: var(--muted); font-size: 15px; line-height: 1.8; margin-top: -6px; }

  /* CTA */
  .cta-shell { position: relative; overflow: hidden; padding: 68px 0; background-image: url('/assets/images/backpic/back-3.png'); background-size: cover; background-position: center; border-radius: 28px; }
  .cta-shell::before { content: ''; position: absolute; inset: 0; background: rgba(6,45,43,.88); border-radius: 28px; }
  .cta-inner { position: relative; z-index: 2; text-align: center; color: #f7f4ee; max-width: 720px; margin: 0 auto; }
  .cta-inner h2 { font-size: 36px; font-weight: 800; color: #fff; line-height: 1.25; margin: 0 0 18px; }
  .cta-inner p { color: rgba(247,244,238,.84); font-size: 16px; max-width: 580px; margin: 0 auto 28px; line-height: 1.85; }
  .cta-inner .btn-primary:hover { background: #FFBE6E; }
  .cta-links { margin-top: 26px; display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; color: rgba(255,255,255,.8); font-size: 14px; }
  .cta-links a { color: #fff; border-bottom: 1px solid rgba(255,255,255,.35); padding-bottom: 2px; transition: border .2s; }
  .cta-links a:hover { border-color: #fff; }

  /* footer */
  .site-footer { background: #062B29; color: #cad8d3; margin-top: 100px; }
  .site-footer .container-gj { padding-top: 60px; padding-bottom: 28px; }
  .footer-top { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 42px; }
  .footer-brand-name { display: flex; align-items: center; gap: 9px; color: #fff; font-size: 20px; font-weight: 800; }
  .footer-brand-name svg { width: 24px; height: 24px; flex: none; }
  .footer-desc { color: #a7bdb8; font-size: 14px; line-height: 1.8; max-width: 360px; margin: 16px 0 0; }
  .footer-col { display: grid; align-content: start; gap: 12px; }
  .footer-col-title { color: #fff; font-weight: 700; margin-bottom: 8px; }
  .footer-col a { color: #a7bdb8; font-size: 14px; transition: color .2s ease; }
  .footer-col a:hover { color: #fff; }
  .footer-bottom { border-top: 1px solid rgba(255,255,255,.14); margin-top: 44px; padding-top: 22px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; font-size: 13px; color: #8ba39e; }
  .footer-bottom a { color: #d1ddd9; }
  .footer-bottom a:hover { color: #fff; }

  .no-pick { user-select: none; }

  @media (max-width: 1023px) {
    .sec-title { font-size: 32px; }
    .category-hero h1 { font-size: 42px; }
    .footer-top { grid-template-columns: 1fr 1fr; }
    .status-panel { grid-template-columns: 1fr; gap: 28px; }
    .status-grid { grid-template-columns: repeat(3,1fr); }
  }
  @media (max-width: 767px) {
    .site-header { padding: 12px 16px 0; }
    .site-header .header-inner { padding: 8px 10px 8px 16px; border-radius: 24px; }
    .nav-toggle { display: flex; }
    .nav-menu { position: absolute; top: 58px; left: 16px; right: 16px; background: #fff; flex-direction: column; align-items: stretch; padding: 12px; border-radius: 18px; border: 1px solid var(--line); box-shadow: 0 20px 50px rgba(15,60,55,.18); display: none; }
    .site-header.nav-open .nav-menu { display: flex; }
    .nav-menu a { text-align: left; }
    .section-pad { padding: 62px 0; }
    .category-hero { padding: 126px 0 64px; }
    .category-hero h1 { font-size: 32px; }
    .category-hero .hero-copy { font-size: 16px; }
    .guide-intro { grid-template-columns: 1fr; gap: 34px; }
    .intro-media .frame-main img { height: 250px; }
    .step-flow { grid-template-columns: 1fr; gap: 18px; }
    .step-flow .step-item::after { display: none; }
    .status-grid { grid-template-columns: 1fr; }
    .status-panel { padding: 34px; }
    .sec-title { font-size: 28px; }
    .sec-lead { font-size: 15px; margin-top: 14px; }
    .footer-top { grid-template-columns: 1fr; gap: 30px; }
    .site-footer .container-gj { padding-top: 42px; }
    .cta-shell { padding: 44px 0; }
    .cta-inner h2 { font-size: 28px; }
    .hero-actions .btn { width: 100%; }
    .faq-item summary { font-size: 14px; padding: 16px 16px; }
    .faq-item .faq-body { padding: 0 16px 16px; font-size: 14px; }
  }
  @media (max-width: 640px) {
    .hero-note { align-items: flex-start; flex-direction: column; }
    .footer-bottom { flex-direction: column; }
  }