/* roulang page: index */
:root {
  --primary: #1D5C3A;
  --primary-deep: #123B26;
  --accent: #F97316;
  --accent-hover: #EA6508;
  --page-bg: #F7F4EE;
  --section-alt: #EFE9DF;
  --card-bg: #FFFFFF;
  --text-main: #24261F;
  --text-muted: #6B6F64;
  --border-line: #E4DDD2;
  --dark-surface: #171A15;
  --radius-lg: 14px;
  --radius-md: 10px;
  --radius-sm: 8px;
  --shadow-card: 0 2px 10px rgba(23,26,21,0.06);
  --shadow-hover: 0 10px 28px rgba(23,26,21,0.10);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
  background: var(--page-bg);
  color: var(--text-main);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  padding-bottom: 72px;
}
a { color: var(--primary); text-decoration: none; transition: color .2s ease; }
a:hover { text-decoration: none; color: var(--accent); }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul, ol { list-style-position: inside; }
.container-max { max-width: 1200px; margin: 0 auto; padding-left: 16px; padding-right: 16px; }

/* ===== Buttons ===== */
.btn-primary {
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--accent); color: #fff; font-weight: 600;
  height: 46px; padding: 0 28px; border-radius: 8px;
  transition: all .25s ease; border: 2px solid transparent;
}
.btn-primary:hover { background: var(--accent-hover); color: #fff; transform: translateY(-1px); box-shadow: 0 4px 14px rgba(249,115,22,.3); }
.btn-primary:active { transform: scale(.98); }
.btn-primary:focus-visible { outline: 2px solid var(--primary); outline-offset: 3px; }
.btn-outline {
  display: inline-flex; align-items: center; justify-content: center;
  background: transparent; color: var(--primary); font-weight: 600;
  height: 46px; padding: 0 28px; border-radius: 8px;
  border: 2px solid var(--primary); transition: all .25s ease;
}
.btn-outline:hover { background: rgba(29,92,58,.08); color: var(--primary); transform: translateY(-1px); }
.btn-outline:active { transform: scale(.98); }
.btn-outline:focus-visible { outline: 2px solid var(--primary); outline-offset: 3px; }
.btn-white {
  border-color: #fff; color: #fff; background: rgba(255,255,255,.06);
}
.btn-white:hover { background: rgba(255,255,255,.16); color: #fff; }
.btn-accent-white { background: #fff; color: var(--primary-deep); }
.btn-accent-white:hover { background: #f0f0f0; color: var(--primary-deep); box-shadow: 0 4px 14px rgba(255,255,255,.2); }

/* ===== Header/Nav ===== */
.site-header {
  position: fixed; top: 14px; left: 0; right: 0; z-index: 1000;
  padding: 0 20px;
}
.nav-panel {
  position: relative;
  background: var(--primary-deep);
  border-radius: 14px;
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 16px;
  box-shadow: 0 8px 24px rgba(18,59,38,.35);
  gap: 12px;
}
.nav-brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-icon {
  width: 36px; height: 36px; border-radius: 10px;
  background: var(--accent); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 17px;
}
.brand-text { color: #fff; font-weight: 700; font-size: 18px; letter-spacing: .5px; white-space: nowrap; }
.nav-links { display: flex; align-items: center; gap: 8px; flex: 1; justify-content: center; }
.nav-link {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(255,255,255,.08);
  color: rgba(255,255,255,.82);
  border-radius: 999px; padding: 8px 18px;
  font-size: 14px; font-weight: 500;
  transition: all .2s ease; white-space: nowrap;
}
.nav-link i { font-size: 13px; }
.nav-link:hover { background: rgba(255,255,255,.16); color: #fff; }
.nav-link.active { background: var(--accent); color: #fff; font-weight: 600; box-shadow: 0 2px 10px rgba(249,115,22,.35); }
.nav-cta-btn { height: 40px; padding: 0 22px; font-size: 14px; }
.nav-toggle { display: none; width: 40px; height: 40px; border-radius: 10px; background: rgba(255,255,255,.08); color: #fff; font-size: 18px; align-items: center; justify-content: center; }
.nav-toggle:hover { background: rgba(255,255,255,.16); }
.nav-toggle:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .nav-links {
    display: none;
    position: absolute; top: calc(100% + 8px); left: 0; right: 0;
    background: var(--primary-deep); border-radius: 14px;
    padding: 10px; flex-direction: column; gap: 6px;
    box-shadow: 0 12px 30px rgba(18,59,38,.4);
  }
  .nav-links.open { display: flex; }
  .nav-link { width: 100%; justify-content: flex-start; border-radius: 10px; }
  .brand-text { font-size: 16px; }
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 580px;
  display: flex; align-items: center; justify-content: center;
  background-size: cover; background-position: center;
  padding: 130px 16px 70px;
  text-align: center;
}
.hero-content { max-width: 820px; margin: 0 auto; position: relative; z-index: 2; }
.hero h1 {
  font-size: 42px; color: #fff; font-weight: 700; line-height: 1.2;
  letter-spacing: 1px; margin-bottom: 18px; text-shadow: 0 2px 20px rgba(0,0,0,.25);
}
.hero .hero-sub {
  font-size: 17px; color: rgba(255,255,255,.92); max-width: 620px;
  margin: 0 auto 36px; line-height: 1.8; text-shadow: 0 1px 12px rgba(0,0,0,.3);
}
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,.14); border: 1px solid rgba(255,255,255,.3);
  color: #fff; font-size: 13px; padding: 6px 16px; border-radius: 999px;
  margin-bottom: 18px; backdrop-filter: blur(4px);
}
@media (max-width: 640px) {
  .hero { min-height: 500px; padding-top: 110px; }
  .hero h1 { font-size: 30px; }
  .hero .hero-sub { font-size: 15px; }
  .hero-actions { flex-direction: column; align-items: center; }
  .hero-actions .btn-primary, .hero-actions .btn-outline { width: 100%; max-width: 280px; }
}

/* ===== Stats ===== */
.stats-section { margin-top: -40px; position: relative; z-index: 3; padding-bottom: 20px; }
.stats-card {
  background: #fff; border-radius: 14px;
  box-shadow: var(--shadow-card);
  display: flex; align-items: stretch;
  padding: 32px 20px;
}
.stat-item { flex: 1; text-align: center; padding: 0 20px; display: flex; flex-direction: column; justify-content: center; gap: 6px; }
.stat-divider { width: 1px; background: var(--border-line); margin: 8px 0; }
.stat-num { font-size: 30px; font-weight: 700; color: var(--primary); line-height: 1.2; }
.stat-label { font-size: 13px; color: var(--text-muted); }
@media (max-width: 768px) {
  .stats-card { flex-wrap: wrap; gap: 18px 0; }
  .stat-item { flex: 0 0 50%; padding: 0 12px; }
  .stat-divider { display: none; }
  .stat-num { font-size: 26px; }
}

/* ===== Section spacing ===== */
.section-pad { padding: 70px 0; }
.section-pad-sm { padding: 45px 0; }
.section-head { text-align: center; max-width: 760px; margin: 0 auto 48px; }
.section-head .sec-badge {
  display: inline-block; background: rgba(29,92,58,.1); color: var(--primary);
  font-size: 13px; font-weight: 600; padding: 6px 18px; border-radius: 999px; margin-bottom: 16px;
}
.section-head h2 { font-size: 30px; font-weight: 700; color: var(--text-main); margin-bottom: 16px; line-height: 1.3; }
.section-head p { color: var(--text-muted); font-size: 15px; }
@media (max-width: 640px) { .section-pad { padding: 56px 0; } .section-head h2 { font-size: 24px; } }

/* ===== Features ===== */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature-card {
  background: #fff; border-radius: 14px; padding: 32px 28px;
  box-shadow: var(--shadow-card);
  border: 1px solid transparent;
  position: relative; overflow: hidden;
  transition: all .3s ease;
}
.feature-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--accent); transform: scaleX(0); transform-origin: left; transition: transform .3s ease;
}
.feature-card:hover { box-shadow: var(--shadow-hover); border-color: var(--primary); transform: translateY(-4px); }
.feature-card:hover::before { transform: scaleX(1); }
.feature-icon {
  width: 42px; height: 42px; border-radius: 50%; background: rgba(29,92,58,.1);
  color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 18px; margin-bottom: 20px;
}
.feature-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.feature-card p { font-size: 14px; color: var(--text-muted); line-height: 1.7; }
.feature-card.dark {
  background: var(--primary-deep); color: #fff;
}
.feature-card.dark .feature-icon { background: rgba(255,255,255,.12); color: var(--accent); }
.feature-card.dark h3 { color: #fff; }
.feature-card.dark p { color: rgba(255,255,255,.72); }
.feature-card.dark .dark-stat { font-size: 34px; font-weight: 700; color: var(--accent); margin: 18px 0 4px; }
.feature-card.dark .dark-stat-label { font-size: 13px; color: rgba(255,255,255,.6); }
.feature-card.list .feat-list { margin-top: 12px; }
.feature-card.list .feat-list li {
  display: flex; align-items: flex-start; gap: 8px;
  font-size: 14px; color: var(--text-main); padding: 7px 0;
  list-style: none;
}
.feature-card.list .feat-list li i { color: var(--primary); font-size: 12px; margin-top: 5px; }
@media (max-width: 1024px) { .features-grid { grid-template-columns: 1fr; max-width: 560px; margin: 0 auto; } }

/* ===== Scenarios ===== */
.scenario-row { display: grid; grid-template-columns: 5fr 7fr; gap: 40px; align-items: center; margin-bottom: 70px; }
.scenario-row.reverse { direction: rtl; }
.scenario-row.reverse > * { direction: ltr; }
.scenario-img { border-radius: 14px; overflow: hidden; position: relative; box-shadow: var(--shadow-card); }
.scenario-img img { width: 100%; height: 340px; object-fit: cover; transition: transform .4s ease; }
.scenario-img:hover img { transform: scale(1.02); }
.scenario-tag {
  position: absolute; top: 16px; left: 16px; z-index: 2;
  background: rgba(18,59,38,.82); color: #fff; font-size: 12px;
  padding: 6px 14px; border-radius: 999px; backdrop-filter: blur(4px);
}
.scenario-text { padding-right: 10px; }
.scenario-text .scen-badge {
  display: inline-block; background: rgba(29,92,58,.1); color: var(--primary);
  font-size: 13px; font-weight: 600; padding: 4px 14px; border-radius: 999px; margin-bottom: 14px;
}
.scenario-text h3 { font-size: 24px; font-weight: 700; margin-bottom: 14px; line-height: 1.3; }
.scenario-text > p { color: var(--text-muted); font-size: 15px; margin-bottom: 16px; }
.scenario-text ul { margin-bottom: 20px; }
.scenario-text ul li { list-style: none; display: flex; align-items: flex-start; gap: 10px; font-size: 14px; padding: 5px 0; color: var(--text-main); }
.scenario-text ul li i { color: var(--primary); margin-top: 5px; font-size: 13px; }
.text-link { font-weight: 600; font-size: 15px; display: inline-flex; align-items: center; gap: 6px; transition: gap .2s ease; }
.text-link:hover { gap: 10px; }
@media (max-width: 1024px) {
  .scenario-row, .scenario-row.reverse { grid-template-columns: 1fr; direction: ltr; }
  .scenario-row.reverse > * { direction: ltr; }
  .scenario-img img { height: 260px; }
}

/* ===== Testimonials ===== */
.testimonial-section { background: var(--section-alt); }
.partner-wall { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-bottom: 48px; }
.partner-logo {
  background: #fff; border: 1px solid var(--border-line); border-radius: 10px;
  padding: 14px 24px; color: #8a8f88; font-size: 15px; font-weight: 600;
  transition: all .25s ease;
}
.partner-logo:hover { border-color: var(--primary); color: var(--primary); box-shadow: var(--shadow-card); }
.testimonial-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.testimonial-card {
  background: #fff; border: 1px solid var(--border-line); border-radius: 14px;
  padding: 30px 26px; box-shadow: var(--shadow-card); transition: all .3s ease;
}
.testimonial-card:hover { box-shadow: var(--shadow-hover); border-color: var(--primary); transform: translateY(-4px); }
.t-quote-icon { color: var(--accent); font-size: 20px; margin-bottom: 12px; opacity: .7; }
.testimonial-card blockquote { font-size: 15px; color: var(--text-main); line-height: 1.75; margin-bottom: 16px; border-left: none; padding: 0; }
.t-author { font-size: 13px; color: var(--text-muted); display: flex; align-items: center; gap: 8px; }
.t-author::before { content: ''; width: 20px; height: 1px; background: var(--accent); display: inline-block; }
@media (max-width: 1024px) { .testimonial-grid { grid-template-columns: 1fr; max-width: 560px; margin: 0 auto; } }

/* ===== FAQ ===== */
.faq-list { max-width: 820px; margin: 0 auto; }
.faq-item {
  background: #fff; border: 1px solid var(--border-line); border-radius: 14px;
  margin-bottom: 14px; overflow: hidden; transition: all .3s ease;
}
.faq-item.active { border-color: var(--primary); box-shadow: var(--shadow-hover); }
.faq-question {
  width: 100%; display: flex; align-items: center; justify-content: space-between;
  padding: 20px 24px; text-align: left; font-size: 16px; font-weight: 600;
  color: var(--text-main); transition: background .2s ease;
}
.faq-question:hover { background: rgba(29,92,58,.03); }
.faq-question:focus-visible { outline: 2px solid var(--primary); outline-offset: -2px; border-radius: 14px; }
.faq-num { color: var(--accent); font-weight: 700; margin-right: 12px; font-size: 14px; }
.faq-q-text { flex: 1; }
.faq-toggle {
  width: 26px; height: 26px; border-radius: 50%; background: rgba(29,92,58,.1);
  color: var(--primary); display: flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 600; transition: all .3s ease; flex-shrink: 0;
}
.faq-item.active .faq-toggle { transform: rotate(45deg); background: var(--primary); color: #fff; }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .4s ease; }
.faq-answer-inner { padding: 0 24px 22px 24px; font-size: 14px; color: var(--text-muted); line-height: 1.8; }

/* ===== News ===== */
.news-card {
  background: #fff; border-radius: 14px; overflow: hidden;
  box-shadow: var(--shadow-card); border: 1px solid var(--border-line);
  transition: all .3s ease; display: block; height: 100%;
}
.news-card:hover { box-shadow: var(--shadow-hover); border-color: var(--primary); transform: translateY(-4px); }
.news-cover { position: relative; overflow: hidden; aspect-ratio: 16/7; }
.news-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.news-card:hover .news-cover img { transform: scale(1.03); }
.news-category {
  position: absolute; top: 10px; left: 10px; z-index: 2;
  background: var(--accent); color: #fff; font-size: 12px; font-weight: 600;
  padding: 4px 12px; border-radius: 999px;
}
.news-content { padding: 20px 18px 18px; }
.news-content h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; line-height: 1.45; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; min-height: 46px; }
.news-content p { font-size: 14px; color: var(--text-muted); line-height: 1.65; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 14px; }
.news-meta { display: flex; align-items: center; justify-content: space-between; font-size: 12px; }
.news-meta time { color: var(--text-muted); }
.news-meta .read-more { color: var(--primary); font-weight: 600; transition: gap .2s ease; display: inline-flex; align-items: center; gap: 4px; }
.news-card:hover .read-more { gap: 8px; }
.news-empty {
  grid-column: 1 / -1; text-align: center;
  background: var(--section-alt); border: 1px solid var(--border-line);
  border-radius: 14px; padding: 50px 20px; color: var(--text-muted);
  font-size: 15px;
}
.news-empty i { font-size: 28px; color: var(--primary); margin-bottom: 10px; display: block; }
@media (max-width: 1024px) { .news-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .news-grid { grid-template-columns: 1fr; } }

/* ===== CTA ===== */
.cta-section { background: var(--primary-deep); position: relative; overflow: hidden; }
.cta-section::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 6px;
  background: linear-gradient(90deg, var(--accent), var(--primary));
}
.cta-inner { text-align: center; padding: 70px 16px; max-width: 640px; margin: 0 auto; }
.cta-inner h2 { font-size: 30px; color: #fff; font-weight: 700; margin-bottom: 16px; }
.cta-inner p { color: rgba(255,255,255,.76); font-size: 15px; margin-bottom: 32px; }
.cta-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
@media (max-width: 640px) { .cta-inner h2 { font-size: 24px; } .cta-actions { flex-direction: column; align-items: center; } }

/* ===== Footer ===== */
.site-footer { background: var(--dark-surface); color: rgba(255,255,255,.7); }
.footer-topline { height: 4px; background: linear-gradient(90deg, var(--accent), var(--primary)); }
.footer-content { display: grid; grid-template-columns: 2fr 1fr 1fr 1.2fr; gap: 40px; padding: 60px 16px 40px; }
.footer-brand .brand-text { font-size: 20px; margin-bottom: 12px; display: block; }
.footer-brand p { font-size: 14px; color: rgba(255,255,255,.55); max-width: 300px; line-height: 1.7; }
.footer-col h4 { color: #fff; font-size: 16px; font-weight: 600; margin-bottom: 18px; }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { color: rgba(255,255,255,.6); font-size: 14px; transition: color .2s ease; }
.footer-col ul li a:hover { color: var(--accent); }
.footer-contact li { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; font-size: 14px; color: rgba(255,255,255,.6); }
.footer-contact li i { color: var(--accent); width: 16px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); padding: 18px 16px; font-size: 13px; color: rgba(255,255,255,.45); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; }
@media (max-width: 1024px) { .footer-content { grid-template-columns: 1fr 1fr; } }
@media (max-width: 640px) { .footer-content { grid-template-columns: 1fr; gap: 30px; padding: 40px 16px 30px; } .footer-bottom { flex-direction: column; text-align: center; } }

/* ===== Fixed CTA Bar ===== */
.fixed-bar {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 999;
  background: rgba(18,59,38,.94); backdrop-filter: blur(10px);
  border-top: 2px solid var(--primary);
  min-height: 72px; display: flex; align-items: center;
  transition: transform .3s ease;
}
.fixed-bar.hidden { transform: translateY(100%); }
.fixed-bar-content {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; width: 100%;
  padding: 12px 16px;
}
.fixed-bar-content p { color: #fff; font-size: 15px; font-weight: 500; }
.fixed-bar-content p span { color: var(--accent); font-weight: 700; }
.fixed-bar-content .btn-primary { height: 40px; padding: 0 24px; font-size: 14px; }
.bar-close {
  color: rgba(255,255,255,.5); font-size: 18px; width: 30px; height: 30px;
  display: flex; align-items: center; justify-content: center; border-radius: 8px;
  transition: all .2s ease;
}
.bar-close:hover { color: #fff; background: rgba(255,255,255,.1); }
.bar-close:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
@media (max-width: 640px) {
  body { padding-bottom: 64px; }
  .fixed-bar { min-height: 64px; }
  .fixed-bar-content p { font-size: 13px; }
  .fixed-bar-content .btn-primary { padding: 0 16px; }
  .fixed-bar-content .bar-close { display: none; }
}

/* ===== Focus visible global ===== */
a:focus-visible, .nav-link:focus-visible, .feature-card a:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px;
}

/* roulang page: category1 */
:root {
  --primary: #1D5C3A;
  --primary-deep: #123B26;
  --accent: #F97316;
  --accent-hover: #EA6508;
  --page-bg: #F7F4EE;
  --section-alt: #EFE9DF;
  --card-bg: #FFFFFF;
  --text-main: #24261F;
  --text-muted: #6B6F64;
  --border-line: #E4DDD2;
  --dark-surface: #171A15;
  --radius-lg: 14px;
  --radius-md: 10px;
  --radius-sm: 8px;
  --shadow-card: 0 2px 10px rgba(23,26,21,0.06);
  --shadow-hover: 0 10px 28px rgba(23,26,21,0.10);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Noto Sans SC', system-ui, sans-serif;
  background-color: var(--page-bg);
  color: var(--text-main);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  padding-bottom: 72px;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; transition: color .2s ease; }
ul, ol { list-style: none; padding: 0; }
button { font-family: inherit; cursor: pointer; }
.container-max { max-width: 1200px; margin: 0 auto; padding-left: 16px; padding-right: 16px; width: 100%; }

/* ===== Header ===== */
.site-header {
  position: fixed; top: 14px; left: 0; right: 0; z-index: 100;
  padding: 0 20px;
}
.nav-panel {
  background: var(--primary-deep);
  border-radius: 14px;
  padding: 10px 14px;
  display: flex; align-items: center; justify-content: space-between;
  box-shadow: 0 4px 20px rgba(0,0,0,0.22);
  max-width: 1200px; margin: 0 auto; gap: 12px;
  position: relative;
}
.nav-brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-icon {
  width: 36px; height: 36px; border-radius: 10px;
  background: var(--accent); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; text-shadow: 0 1px 2px rgba(0,0,0,0.2);
}
.brand-text { color: #fff; font-weight: 700; font-size: 18px; white-space: nowrap; letter-spacing: 0.5px; }
.nav-links { display: flex; align-items: center; gap: 8px; flex: 1; justify-content: center; }
.nav-link {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 14px; border-radius: 8px;
  background: rgba(255,255,255,0.08);
  color: rgba(255,255,255,0.85);
  font-size: 14px; font-weight: 400;
  transition: all .2s ease; white-space: nowrap;
  border: 1px solid transparent;
}
.nav-link:hover { background: rgba(255,255,255,0.16); color: #fff; }
.nav-link.active { background: var(--accent); color: #fff; border-color: rgba(255,255,255,0.15); }
.nav-actions { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.btn-primary {
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--accent); color: #fff; font-weight: 600;
  padding: 10px 24px; border-radius: 8px;
  transition: all .2s ease; cursor: pointer; border: none;
  font-size: 14px; line-height: 1.4;
}
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-1px); box-shadow: 0 6px 16px rgba(233,101,8,0.3); }
.btn-primary:active { transform: scale(0.98); }
.btn-primary:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.nav-toggle {
  display: none; background: transparent; border: 1px solid rgba(255,255,255,0.3);
  color: #fff; width: 40px; height: 40px; border-radius: 8px;
  font-size: 16px; cursor: pointer; transition: all .2s;
}
.nav-toggle:hover { background: rgba(255,255,255,0.1); }
.nav-toggle:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ===== Footer ===== */
.site-footer { background: var(--dark-surface); color: rgba(255,255,255,0.75); }
.footer-topline { height: 4px; background: linear-gradient(90deg, var(--accent), var(--primary)); }
.footer-content { display: grid; grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr; gap: 40px; padding: 56px 16px 40px; }
.footer-brand .brand-text { font-size: 22px; color: #fff; display: inline-flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.footer-brand .brand-text .brand-icon { width: 30px; height: 30px; font-size: 14px; }
.footer-brand p { margin-top: 12px; font-size: 14px; line-height: 1.8; color: rgba(255,255,255,0.6); max-width: 360px; }
.footer-col h4 { color: #fff; font-size: 16px; margin-bottom: 18px; font-weight: 600; }
.footer-col ul li { margin-bottom: 10px; font-size: 14px; }
.footer-col ul li a { color: rgba(255,255,255,0.6); transition: color .2s; }
.footer-col ul li a:hover { color: #fff; }
.footer-col .footer-contact li { display: flex; align-items: center; gap: 8px; color: rgba(255,255,255,0.6); font-size: 14px; }
.footer-col .footer-contact li i { width: 18px; text-align: center; color: var(--accent); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding: 20px 16px; font-size: 13px; color: rgba(255,255,255,0.45); }
.footer-bottom .container-max { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; width: 100%; }

/* ===== 分类页 Hero ===== */
.cat-hero {
  position: relative;
  background: linear-gradient(rgba(18,59,38,0.72), rgba(18,59,38,0.36)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  padding: 140px 16px 110px;
  text-align: center;
  color: #fff;
  overflow: hidden;
}
.cat-hero .hero-inner { max-width: 820px; margin: 0 auto; }
.cat-hero .hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,0.15); border: 1px solid rgba(255,255,255,0.25);
  padding: 6px 18px; border-radius: 999px;
  font-size: 14px; color: #fff; backdrop-filter: blur(4px);
  margin-bottom: 22px;
}
.cat-hero h1 {
  font-size: 40px; font-weight: 700; line-height: 1.25;
  color: #fff; margin: 0 0 18px;
  text-shadow: 0 2px 8px rgba(0,0,0,0.3);
}
.cat-hero .hero-sub {
  font-size: 16px; color: rgba(255,255,255,0.9); max-width: 640px;
  margin: 0 auto 32px; line-height: 1.8;
}
.cat-hero .hero-ctas { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.cat-hero .btn-secondary {
  display: inline-flex; align-items: center; justify-content: center;
  background: transparent; color: #fff; font-weight: 500;
  padding: 10px 28px; border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.7);
  transition: all .2s ease;
  font-size: 15px;
}
.cat-hero .btn-secondary:hover { background: rgba(255,255,255,0.15); transform: translateY(-1px); }
.cat-hero .btn-secondary:active { transform: scale(0.98); }
.cat-hero .btn-secondary:focus-visible { outline: 2px solid #fff; outline-offset: 2px; }

/* ===== 数据条 ===== */
.stat-strip { margin-top: -44px; position: relative; z-index: 5; padding: 0 16px; }
.stat-card {
  background: #fff; border-radius: 14px;
  box-shadow: var(--shadow-card);
  padding: 28px 32px;
  display: grid; grid-template-columns: repeat(4, 1fr);
  max-width: 1200px; margin: 0 auto;
}
.stat-item { text-align: center; padding: 8px 16px; position: relative; }
.stat-item + .stat-item { border-left: 1px solid var(--border-line); }
.stat-item .stat-num { font-size: 30px; font-weight: 700; color: var(--primary); font-family: 'PingFang SC', sans-serif; }
.stat-item .stat-label { font-size: 14px; color: var(--text-muted); margin-top: 6px; }

/* ===== 核心服务 ===== */
.core-services { padding: 80px 16px 60px; }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 48px; }
.section-head .section-kicker {
  display: inline-block; background: rgba(29,92,58,0.08);
  color: var(--primary); font-size: 13px; font-weight: 600;
  padding: 4px 16px; border-radius: 999px; margin-bottom: 14px;
  letter-spacing: 1px;
}
.section-head h2 { font-size: 28px; color: var(--text-main); font-weight: 700; margin-bottom: 12px; line-height: 1.35; }
.section-head p { font-size: 16px; color: var(--text-muted); }
.service-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.service-card {
  background: #fff; border-radius: 14px; overflow: hidden;
  box-shadow: var(--shadow-card);
  border: 1px solid transparent;
  transition: all .3s ease;
  display: flex; flex-direction: column;
}
.service-card:hover { box-shadow: var(--shadow-hover); border-color: var(--primary); transform: translateY(-3px); }
.service-card .service-img { width: 100%; height: 200px; object-fit: cover; display: block; }
.service-card .service-body { padding: 28px; flex: 1; }
.service-card .service-icon {
  width: 44px; height: 44px; border-radius: 12px;
  background: rgba(29,92,58,0.1); color: var(--primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; margin-bottom: 16px;
}
.service-card h3 { font-size: 18px; font-weight: 700; color: var(--text-main); margin-bottom: 10px; }
.service-card p { font-size: 14px; color: var(--text-muted); line-height: 1.75; }
.service-card .service-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.service-card .tag {
  background: var(--section-alt); color: var(--primary);
  font-size: 12px; padding: 3px 12px; border-radius: 999px;
}

/* ===== 流程 ===== */
.process-section { background: var(--section-alt); padding: 80px 16px; }
.process-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px; max-width: 1200px; margin: 0 auto; }
.process-step {
  background: #fff; border-radius: 14px; padding: 28px 20px;
  text-align: center; position: relative;
  box-shadow: var(--shadow-card);
  transition: all .3s ease;
}
.process-step:hover { box-shadow: var(--shadow-hover); transform: translateY(-3px); }
.process-step .step-num {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--primary-deep); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; font-weight: 700; margin: 0 auto 14px;
}
.process-step h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; color: var(--text-main); }
.process-step p { font-size: 13px; color: var(--text-muted); line-height: 1.6; }
.process-step .step-arrow {
  position: absolute; right: -16px; top: 50%; transform: translateY(-50%);
  color: var(--accent); font-size: 18px; z-index: 2;
}

/* ===== 场景展示 ===== */
.scenario-section { padding: 80px 16px; }
.scenario-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.scenario-card {
  background: #fff; border-radius: 14px; padding: 32px;
  border: 1px solid var(--border-line);
  transition: all .3s ease;
  display: flex; flex-direction: column;
}
.scenario-card:hover { box-shadow: var(--shadow-hover); border-color: var(--primary); }
.scenario-card .scenario-icon {
  width: 46px; height: 46px; border-radius: 12px;
  background: var(--primary); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; margin-bottom: 18px;
}
.scenario-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; color: var(--text-main); }
.scenario-card p { font-size: 14px; color: var(--text-muted); line-height: 1.75; margin-bottom: 14px; }
.scenario-card .scenario-points { list-style: none; padding: 0; margin-top: auto; }
.scenario-card .scenario-points li {
  font-size: 14px; color: var(--text-main);
  padding: 6px 0; display: flex; align-items: flex-start; gap: 8px;
}
.scenario-card .scenario-points li::before { content: '\f00c'; font-family: 'Font Awesome 6 Free'; font-weight: 900; color: var(--primary); font-size: 13px; }

/* ===== FAQ ===== */
.faq-section { padding: 80px 16px; background: var(--page-bg); }
.faq-wrap { max-width: 820px; margin: 0 auto; }
.faq-item {
  background: #fff; border-radius: 14px; overflow: hidden;
  border: 1px solid var(--border-line);
  margin-bottom: 14px; transition: all .3s ease;
}
.faq-item.active { border-color: var(--primary); box-shadow: var(--shadow-hover); }
.faq-item .faq-question {
  width: 100%; text-align: left; background: none; border: none;
  padding: 20px 24px; font-size: 16px; font-weight: 600;
  color: var(--text-main); display: flex; align-items: center; gap: 14px;
  cursor: pointer; transition: all .2s;
}
.faq-item .faq-question:hover { color: var(--primary); }
.faq-item .faq-question .faq-num {
  width: 30px; height: 30px; border-radius: 50%;
  background: rgba(29,92,58,0.1); color: var(--primary);
  font-size: 14px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700;
}
.faq-item .faq-icon {
  margin-left: auto; font-size: 16px; color: var(--text-muted);
  transition: transform .3s ease; flex-shrink: 0;
}
.faq-item.active .faq-icon { transform: rotate(45deg); color: var(--primary); }
.faq-item .faq-answer { max-height: 0; overflow: hidden; transition: max-height .4s ease; }
.faq-item .faq-answer-inner { padding: 0 24px 22px 68px; font-size: 15px; color: var(--text-muted); line-height: 1.8; }

/* ===== CTA ===== */
.cta-section {
  background: linear-gradient(rgba(18,59,38,0.88), rgba(18,59,38,0.82)), url('/assets/images/backpic/back-2.png') center/cover;
  padding: 80px 16px; text-align: center; color: #fff;
}
.cta-inner { max-width: 720px; margin: 0 auto; }
.cta-inner h2 { font-size: 30px; font-weight: 700; margin-bottom: 14px; color: #fff; }
.cta-inner p { font-size: 16px; color: rgba(255,255,255,0.85); margin-bottom: 28px; }
.cta-inner .btn-primary { font-size: 16px; padding: 14px 36px; }

/* ===== 底部固定条 ===== */
.bottom-cta-bar {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 90;
  background: rgba(18,59,38,0.94);
  backdrop-filter: blur(8px);
  border-top: 2px solid var(--primary);
  padding: 14px 16px;
  display: flex; align-items: center; justify-content: center;
  transition: transform .3s ease;
}
.bottom-cta-bar.hidden { transform: translateY(110%); }
.bottom-cta-inner { display: flex; align-items: center; gap: 16px; justify-content: space-between; width: 100%; }
.bottom-cta-inner p { color: #fff; font-size: 15px; font-weight: 500; }
.bottom-cta-inner .btn-primary { padding: 8px 20px; font-size: 14px; }
.bottom-cta-close {
  background: transparent; border: none; color: rgba(255,255,255,0.5);
  font-size: 18px; cursor: pointer; padding: 4px;
  transition: all .2s;
}
.bottom-cta-close:hover { color: #fff; }

/* ===== 通用辅助 ===== */
.section-pad { padding: 80px 0; }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .footer-content { grid-template-columns: 1fr 1fr; gap: 32px; }
  .process-grid { grid-template-columns: repeat(3, 1fr); }
  .process-step .step-arrow { display: none; }
  .cat-hero { padding: 120px 16px 90px; }
  .cat-hero h1 { font-size: 34px; }
}
@media (max-width: 768px) {
  body { padding-bottom: 64px; }
  .nav-links {
    display: none; position: absolute; top: calc(100% + 10px);
    left: 0; right: 0; background: var(--primary-deep);
    border-radius: 14px; padding: 14px;
    flex-direction: column; align-items: stretch;
    box-shadow: 0 14px 30px rgba(0,0,0,0.35);
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }
  .nav-link { justify-content: flex-start; }
  .nav-actions .nav-cta-btn { display: none; }
  .cat-hero { padding: 110px 16px 90px; }
  .cat-hero h1 { font-size: 30px; }
  .cat-hero .hero-ctas { flex-direction: column; align-items: center; }
  .cat-hero .btn-primary, .cat-hero .btn-secondary { width: 100%; max-width: 320px; }
  .stat-card { grid-template-columns: repeat(2, 1fr); padding: 24px; gap: 12px; }
  .stat-item + .stat-item { border-left: none; }
  .stat-item:nth-child(3) { border-left: 1px solid var(--border-line); }
  .stat-item:nth-child(2) { border-right: 1px solid var(--border-line); }
  .core-services { padding: 64px 16px 48px; }
  .service-grid { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: 1fr 1fr; }
  .scenario-grid { grid-template-columns: 1fr; }
  .footer-content { grid-template-columns: 1fr; gap: 32px; }
  .bottom-cta-inner p { font-size: 13px; }
  .bottom-cta-inner { flex-wrap: wrap; gap: 8px; justify-content: center; text-align: center; }
  .cta-inner h2 { font-size: 24px; }
  .section-pad { padding: 56px 0; }
}
@media (max-width: 520px) {
  .site-header { padding: 0 12px; }
  .nav-panel { padding: 8px 10px; }
  .brand-text { font-size: 16px; }
  .brand-icon { width: 32px; height: 32px; font-size: 14px; }
  .cat-hero { padding: 100px 12px 80px; }
  .cat-hero h1 { font-size: 26px; }
  .stat-card { grid-template-columns: 1fr 1fr; padding: 16px; }
  .stat-item .stat-num { font-size: 24px; }
  .stat-item .stat-label { font-size: 13px; }
  .process-grid { grid-template-columns: 1fr; }
  .service-card .service-body { padding: 20px; }
  .service-card .service-img { height: 160px; }
  .faq-item .faq-question { padding: 16px 18px; font-size: 15px; }
  .faq-item .faq-answer-inner { padding: 0 18px 18px 52px; font-size: 14px; }
}

/* roulang page: article */
:root {
  --primary: #1D5C3A;
  --primary-deep: #123B26;
  --accent: #F97316;
  --accent-hover: #EA6508;
  --page-bg: #F7F4EE;
  --section-alt: #EFE9DF;
  --card-bg: #FFFFFF;
  --text-main: #24261F;
  --text-muted: #6B6F64;
  --border-line: #E4DDD2;
  --dark-surface: #171A15;
  --radius-lg: 14px;
  --radius-md: 10px;
  --radius-sm: 8px;
  --shadow-card: 0 2px 10px rgba(23,26,21,0.06);
  --shadow-hover: 0 10px 28px rgba(23,26,21,0.10);
  --font-stack: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-stack);
  background: var(--page-bg);
  color: var(--text-main);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  padding-bottom: 72px;
}

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

a {
  text-decoration: none;
  color: var(--primary);
  transition: color 0.2s ease;
}

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

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

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

.container-max {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ===== 按钮 ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  transition: background 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
}

.btn-primary:hover {
  background: var(--accent-hover);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(249,115,22,0.28);
}

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

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid var(--primary);
  color: var(--primary);
  background: transparent;
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  padding: 13px 26px;
  border-radius: var(--radius-sm);
  transition: background 0.25s ease, color 0.25s ease, transform 0.2s ease;
}

.btn-outline:hover {
  background: rgba(29,92,58,0.08);
  color: var(--primary);
  transform: translateY(-1px);
}

.btn-white-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid rgba(255,255,255,0.7);
  color: #fff;
  background: rgba(255,255,255,0.08);
  font-size: 15px;
  font-weight: 600;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  transition: background 0.3s ease, border-color 0.3s ease, transform 0.2s ease;
}

.btn-white-outline:hover {
  background: rgba(255,255,255,0.18);
  border-color: #fff;
  color: #fff;
  transform: translateY(-1px);
}

/* ===== 导航 ===== */
.site-header {
  position: fixed;
  top: 14px;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0 20px;
}

.nav-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  max-width: 1200px;
  margin: 0 auto;
  background: var(--primary-deep);
  border-radius: var(--radius-lg);
  padding: 10px 16px;
  box-shadow: 0 10px 30px rgba(18,59,38,0.28);
}

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

.brand-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--accent);
  color: #fff;
  border-radius: 10px;
  font-size: 17px;
}

.brand-text {
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

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

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 16px;
  border-radius: 999px;
  background: rgba(255,255,255,0.08);
  color: rgba(255,255,255,0.82);
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  transition: background 0.25s ease, color 0.25s ease;
}

.nav-link i {
  font-size: 14px;
}

.nav-link:hover {
  background: rgba(255,255,255,0.16);
  color: #fff;
}

.nav-link.active {
  background: var(--primary);
  color: #fff;
}

.nav-cta-btn {
  flex-shrink: 0;
  padding: 12px 22px;
  font-size: 14px;
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(255,255,255,0.12);
  color: #fff;
  font-size: 18px;
  align-items: center;
  justify-content: center;
  transition: background 0.25s ease;
}

.nav-toggle:hover {
  background: rgba(255,255,255,0.22);
}

/* ===== 面包屑 ===== */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 16px;
}

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

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

.breadcrumb-sep {
  color: rgba(107,111,100,0.45);
}

/* ===== 徽章 ===== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  line-height: 1.5;
}

.badge-accent {
  background: var(--accent);
  color: #fff;
}

.badge-outline {
  border: 1px solid var(--border-line);
  color: var(--text-muted);
  background: #fff;
}

/* ===== 文章主体 ===== */
.article-main {
  max-width: 860px;
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 40px 48px;
  margin: 110px auto 0;
}

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

.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-muted);
}

.article-h1 {
  font-size: 32px;
  line-height: 1.25;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 20px;
  letter-spacing: 0.01em;
}

.article-source {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 0;
  border-top: 1px solid var(--border-line);
  border-bottom: 1px solid var(--border-line);
  margin-bottom: 28px;
}

.author-avatar {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  background: rgba(29,92,58,0.1);
  color: var(--primary);
  border-radius: 50%;
  font-size: 16px;
}

.author-name {
  font-size: 14px;
  font-weight: 700;
  line-height: 1.4;
}

.author-role {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.4;
}

/* ===== 正文排版 ===== */
.article-body {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-main);
}

.article-body p {
  margin-bottom: 20px;
}

.article-body h2 {
  font-size: 24px;
  font-weight: 700;
  line-height: 1.3;
  margin: 36px 0 14px;
}

.article-body h3 {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
  margin: 28px 0 12px;
}

.article-body ul,
.article-body ol {
  margin: 0 0 20px 24px;
  padding-left: 4px;
}

.article-body ul {
  list-style: disc;
}

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

.article-body li {
  margin-bottom: 6px;
}

.article-body blockquote {
  border-left: 4px solid var(--primary);
  background: var(--section-alt);
  padding: 16px 20px;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: 24px 0;
  color: var(--text-main);
  font-style: normal;
}

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

.article-body img {
  border-radius: 12px;
  margin: 24px auto;
}

.article-body figcaption {
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
  margin-top: -12px;
  margin-bottom: 24px;
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 14px;
}

.article-body table th,
.article-body table td {
  border: 1px solid var(--border-line);
  padding: 12px;
  text-align: left;
}

.article-body table th {
  background: rgba(29,92,58,0.1);
  font-weight: 700;
}

.article-body a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.article-body a:hover {
  color: var(--accent);
}

/* ===== 文末标签 ===== */
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 30px;
  padding-top: 22px;
  border-top: 1px solid var(--border-line);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--section-alt);
  color: var(--text-muted);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 13px;
  transition: background 0.2s ease, color 0.2s ease;
}

.tag:hover {
  background: rgba(29,92,58,0.1);
  color: var(--primary);
}

/* ===== 返回按钮 ===== */
.article-back {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 36px;
  padding-top: 22px;
  border-top: 1px solid var(--border-line);
}

/* ===== 文章未找到 ===== */
.article-not-found {
  text-align: center;
  max-width: 720px;
  margin: 140px auto 60px;
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 60px 40px;
}

.article-not-found h1 {
  font-size: 32px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 14px;
}

.article-not-found p {
  color: var(--text-muted);
  margin-bottom: 28px;
}

/* ===== 相关推荐 ===== */
.related-section {
  max-width: 1200px;
  margin: 60px auto 0;
  padding: 0 20px;
}

.related-section .section-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 28px;
}

.related-section .section-head::before {
  content: '';
  width: 4px;
  height: 22px;
  background: var(--primary);
  border-radius: 999px;
}

.related-section .section-head h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.3;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.related-card {
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-line);
  overflow: hidden;
  transition: box-shadow 0.3s ease, transform 0.3s ease, border-color 0.3s ease;
}

.related-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
  border-color: var(--primary);
}

.related-card-image {
  width: 100%;
  aspect-ratio: 16 / 7;
  overflow: hidden;
  position: relative;
}

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

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

.related-card-body {
  padding: 18px 20px 20px;
}

.related-card-body h3 {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--text-main);
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 45px;
}

.related-card-body .related-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-muted);
}

.related-card-meta i {
  margin-right: 4px;
}

/* ===== CTA ===== */
.cta-section {
  max-width: 1200px;
  margin: 70px auto 0;
  padding: 0 20px;
}

.cta-box {
  position: relative;
  background: linear-gradient(120deg, rgba(18,59,38,0.92), rgba(29,92,58,0.78)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  border-radius: var(--radius-lg);
  padding: 52px 40px;
  text-align: center;
  overflow: hidden;
}

.cta-box h2 {
  font-size: 28px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
}

.cta-box p {
  font-size: 15px;
  color: rgba(255,255,255,0.85);
  max-width: 560px;
  margin: 0 auto 28px;
}

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

/* ===== FAQ ===== */
.faq-section {
  max-width: 820px;
  margin: 70px auto 0;
  padding: 0 20px;
}

.faq-section .section-head {
  text-align: center;
  margin-bottom: 32px;
}

.faq-section .section-head h2 {
  font-size: 26px;
  font-weight: 700;
  position: relative;
  display: inline-block;
  padding-bottom: 10px;
}

.faq-section .section-head h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 36px;
  height: 3px;
  background: var(--accent);
  border-radius: 999px;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  background: #fff;
  border: 1px solid var(--border-line);
  border-radius: var(--radius-md);
  padding: 0 20px;
  overflow: hidden;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

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

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: 16px;
  text-align: left;
  background: none;
  padding: 16px 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.5;
}

.faq-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--section-alt);
  color: var(--primary);
  font-size: 14px;
  transition: background 0.3s ease, color 0.3s ease, transform 0.3s ease;
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.faq-answer-inner {
  padding: 0 0 18px;
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.75;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--dark-surface);
  margin-top: 80px;
}

.footer-topline {
  height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--primary));
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 36px;
  padding: 48px 20px 36px;
}

.footer-brand .brand-text {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  display: inline-block;
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 13px;
  line-height: 1.8;
  color: rgba(255,255,255,0.62);
  max-width: 290px;
}

.footer-col h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
}

.footer-col ul {
  list-style: none;
}

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

.footer-col ul li a {
  color: rgba(255,255,255,0.62);
  font-size: 14px;
  transition: color 0.25s ease, padding-left 0.25s ease;
}

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

.footer-contact li {
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.62);
  font-size: 14px;
}

.footer-contact i {
  width: 16px;
  color: var(--accent);
  text-align: center;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 20px;
}

.footer-bottom span {
  font-size: 13px;
  color: rgba(255,255,255,0.45);
}

/* ===== 底部固定条 ===== */
.bottom-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 90;
  background: rgba(18,59,38,0.93);
  backdrop-filter: blur(8px);
  border-top: 1px solid rgba(255,255,255,0.12);
  box-shadow: 0 -6px 24px rgba(23,26,21,0.18);
  min-height: 72px;
  display: flex;
  align-items: center;
}

.bottom-bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
}

.bottom-bar-text {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-size: 14px;
}

.bottom-bar-text i {
  color: var(--accent);
  font-size: 17px;
}

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

.bottom-bar-btn {
  padding: 11px 22px;
  font-size: 14px;
}

.bottom-bar-close {
  width: 32px;
  height: 32px;
  background: rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.7);
  border-radius: 50%;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.25s ease, color 0.25s ease;
}

.bottom-bar-close:hover {
  background: rgba(255,255,255,0.2);
  color: #fff;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (max-width: 768px) {
  body {
    padding-bottom: 64px;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    left: 20px;
    right: 20px;
    background: var(--primary-deep);
    border-radius: var(--radius-md);
    padding: 12px;
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    box-shadow: 0 16px 40px rgba(18,59,38,0.35);
  }

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

  .nav-link {
    justify-content: center;
  }

  .nav-toggle {
    display: flex;
  }

  .article-main {
    margin: 96px 12px 0;
    padding: 28px 20px;
  }

  .article-h1 {
    font-size: 26px;
  }

  .related-section {
    margin-top: 40px;
  }

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

  .cta-box {
    padding: 36px 20px;
  }

  .footer-content {
    grid-template-columns: 1fr;
    padding: 36px 20px 28px;
  }

  .bottom-bar-text {
    font-size: 13px;
  }

  .bottom-bar .btn-primary {
    padding: 10px 16px;
    font-size: 13px;
  }
}

@media (max-width: 520px) {
  .nav-cta-btn {
    display: none;
  }

  .article-meta {
    gap: 8px;
  }

  .article-back {
    flex-direction: column;
  }

  .article-back .btn-primary,
  .article-back .btn-outline {
    width: 100%;
  }

  .bottom-bar-text {
    display: none;
  }

  .bottom-bar-inner {
    justify-content: center;
  }

  .bottom-bar-close {
    display: none;
  }
}