/* roulang page: index */
/* ===== 设计变量 ===== */
:root {
  --color-primary: #1F2428;
  --color-accent: #D9772E;
  --color-accent-dark: #C86422;
  --color-accent-secondary: #2E9C8C;
  --color-accent-rgb: 46, 156, 140;
  --color-bg: #F6F4EF;
  --color-bg-card: #FFFFFF;
  --color-bg-soft: #EBE9E3;
  --color-text: #25282D;
  --color-text-secondary: #6A6F76;
  --color-border: #E0DDD5;
  --color-on-dark: #F2EFE9;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.05), 0 4px 12px rgba(0,0,0,.04);
  --shadow-hover: 0 8px 24px rgba(0,0,0,.10);
  --shadow-panel: 0 12px 32px rgba(0,0,0,.12);
  --transition-base: 150ms ease;
  --font-main: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
}

/* ===== 基础 Reset ===== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-accent-secondary); text-decoration: none; transition: color var(--transition-base); }
a:hover { color: var(--color-accent-dark); }
h1, h2, h3, h4, h5, h6 { font-weight: 700; letter-spacing: 0.01em; color: var(--color-text); }
p { margin: 0 0 1rem; }
.container { max-width: 1200px; padding-left: 20px; padding-right: 20px; }
.btn { border-radius: var(--radius-sm); border: 0; font-weight: 600; transition: all var(--transition-base); }
.btn:focus, .btn:focus-visible { outline: 3px solid rgba(217, 119, 46, 0.25); box-shadow: 0 0 0 3px rgba(217, 119, 46, 0.2); }
.btn-accent { background: var(--color-accent); color: #fff; padding: 10px 24px; }
.btn-accent:hover { background: var(--color-accent-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 6px 18px rgba(217, 119, 46, 0.3); }
.btn-accent:active { transform: translateY(-1px) scale(0.99); }
.btn-outline-accent { background: transparent; color: var(--color-accent); border: 1.5px solid var(--color-accent); padding: 10px 24px; }
.btn-outline-accent:hover { background: rgba(217, 119, 46, 0.1); color: var(--color-accent-dark); transform: translateY(-2px); }
.btn-outline-light { background: transparent; color: var(--color-on-dark); border: 1.5px solid rgba(255, 255, 255, 0.7); padding: 10px 24px; }
.btn-outline-light:hover { background: rgba(255, 255, 255, 0.12); color: #fff; }
.btn-cta-compact { padding: 8px 18px; background: var(--color-accent); color: #fff; border-radius: var(--radius-sm); font-weight: 600; }
.btn-cta-compact:hover { background: var(--color-accent-dark); color: #fff; transform: translateY(-1px); }

/* ===== 导航卡片面板 ===== */
.site-nav-wrap {
  padding: 16px 24px 0;
  position: relative;
  z-index: 100;
}
.site-nav {
  background: var(--color-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-panel);
  padding: 14px 20px;
  display: flex;
  align-items: center;
  gap: 24px;
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  color: #fff;
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 0.01em;
}
.nav-brand:hover { color: #fff; }
.nav-brand svg { width: 32px; height: 32px; }
.nav-cats {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  flex: 1;
}
.nav-cat-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-on-dark);
  font-size: 14px;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 999px;
  transition: background var(--transition-base), transform var(--transition-base), color var(--transition-base);
}
.nav-cat-item svg { width: 15px; height: 15px; opacity: 0.85; }
.nav-cat-item:hover {
  background: rgba(217, 119, 46, 0.25);
  color: #fff;
  transform: translateY(-1px);
}
.nav-cat-item.active {
  background: var(--color-accent);
  color: #fff;
}
.nav-cta { flex-shrink: 0; }
.nav-toggle {
  background: transparent;
  border: 1px solid rgba(255,255,255,.2);
  border-radius: var(--radius-sm);
  color: #fff;
  display: none;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}
.nav-toggle:hover { background: rgba(255,255,255,.08); }
@media (max-width: 991.98px) {
  .site-nav { flex-wrap: wrap; }
  .nav-toggle { display: inline-flex; }
  .nav-cats {
    flex-basis: 100%;
    flex-direction: column;
    align-items: stretch;
    padding-top: 10px;
    display: none;
  }
  .nav-cats.show { display: flex; }
  .nav-cat-item { justify-content: flex-start; padding: 10px 14px; }
  .nav-cta { margin-left: auto; }
}
@media (max-width: 575.98px) {
  .site-nav-wrap { padding: 10px 12px 0; }
  .site-nav { padding: 12px 14px; }
  .nav-brand { font-size: 18px; }
  .nav-cta .btn-cta-compact { padding: 6px 14px; font-size: 14px; }
}

/* ===== Hero ===== */
.hero {
  margin: 20px 24px 0;
  border-radius: var(--radius-xl);
  background:
    linear-gradient(90deg, rgba(31,36,40,0.92) 0%, rgba(31,36,40,0.72) 55%, rgba(31,36,40,0.45) 100%),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  min-height: 520px;
  display: flex;
  align-items: center;
  padding: 64px 56px;
  position: relative;
  overflow: hidden;
  color: var(--color-on-dark);
}
.hero::after {
  content: '';
  position: absolute;
  right: -40px;
  bottom: -60px;
  width: 320px;
  height: 320px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 200 200' fill='none' stroke='%23D9772E' stroke-opacity='0.25' stroke-width='2'%3E%3Cpath d='M10 180 L60 130 L90 160 L140 100 L190 50'/%3E%3Cpath d='M10 150 L70 90 L110 130 L160 60'/%3E%3Ccircle cx='140' cy='100' r='6'/%3E%3Ccircle cx='190' cy='50' r='4'/%3E%3Ccircle cx='60' cy='130' r='5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  pointer-events: none;
  opacity: 0.6;
}
.hero-content { max-width: 720px; position: relative; z-index: 2; }
.hero h1 {
  color: #fff;
  font-size: 38px;
  font-weight: 800;
  line-height: 1.35;
  margin-bottom: 18px;
  letter-spacing: 0.01em;
}
.hero h1 .highlight { color: var(--color-accent); }
.hero-sub {
  font-size: 18px;
  color: rgba(242, 239, 233, 0.7);
  margin-bottom: 36px;
  max-width: 520px;
  line-height: 1.6;
}
.hero-actions {
  position: absolute;
  right: 56px;
  bottom: 48px;
  display: flex;
  gap: 14px;
  z-index: 2;
}
@media (max-width: 991.98px) {
  .hero { margin: 16px 16px 0; min-height: 460px; padding: 44px 36px; }
  .hero h1 { font-size: 30px; }
  .hero-actions { position: static; margin-top: 12px; }
}
@media (max-width: 575.98px) {
  .hero { margin: 12px 12px 0; border-radius: var(--radius-lg); padding: 36px 24px; min-height: 420px; }
  .hero h1 { font-size: 26px; }
  .hero-sub { font-size: 16px; }
  .hero-actions { flex-direction: column; gap: 10px; }
  .hero-actions .btn { width: 100%; }
}

/* ===== 板块通用 ===== */
.section { padding: 72px 0; }
.section-soft { background: var(--color-bg-soft); }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; margin-bottom: 36px; flex-wrap: wrap; }
.section-head h2 { font-size: 28px; font-weight: 700; margin: 0; }
.section-head .section-link { color: var(--color-accent-secondary); font-size: 15px; font-weight: 500; }
.section-head .section-link:hover { color: var(--color-accent-dark); text-decoration: underline; }
.section-filter { display: flex; gap: 10px; flex-wrap: wrap; }
.section-filter a {
  color: var(--color-text-secondary);
  font-size: 14px;
  padding: 4px 12px;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
}
.section-filter a:hover { border-color: var(--color-accent); color: var(--color-accent); background: rgba(217,119,46,.05); }
@media (max-width: 767.98px) {
  .section { padding: 48px 0; }
  .section-head h2 { font-size: 23px; }
}

/* ===== 专题合集 Bento ===== */
.bento-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 2fr;
  grid-template-rows: auto auto;
  gap: 20px;
}
.bento-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px 26px;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 150px;
}
.bento-card:nth-child(1) { grid-column: span 2; }
.bento-card:nth-child(4) { grid-column: span 2; }
.bento-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.bento-num {
  font-size: 32px;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 14px;
  transition: all var(--transition-base);
}
.bento-card:hover .bento-num {
  background: var(--color-accent);
  color: #fff;
  width: 52px;
  height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  margin-bottom: 18px;
}
.bento-title { font-size: 19px; font-weight: 700; margin-bottom: 8px; }
.bento-desc { font-size: 14px; color: var(--color-text-secondary); margin-bottom: 16px; }
.bento-link {
  margin-top: auto;
  color: var(--color-accent);
  font-size: 14px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap var(--transition-base);
}
.bento-link:hover { gap: 10px; color: var(--color-accent-dark); }
@media (max-width: 991.98px) {
  .bento-grid { grid-template-columns: 1fr 1fr; }
  .bento-card:nth-child(1), .bento-card:nth-child(4) { grid-column: span 2; }
}
@media (max-width: 575.98px) {
  .bento-grid { grid-template-columns: 1fr; }
  .bento-card:nth-child(1), .bento-card:nth-child(4) { grid-column: span 1; }
}

/* ===== 内容卡片 ===== */
.card-overlay {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-bg-soft);
  border: 1px solid var(--color-border);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  height: 100%;
  display: flex;
  flex-direction: column;
}
.card-overlay:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); }
.card-cover { aspect-ratio: 16/9; overflow: hidden; background: var(--color-bg-soft); }
.card-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 300ms ease; }
.card-overlay:hover .card-cover img { transform: scale(1.04); }
.card-body-content { padding: 18px 20px 20px; display: flex; flex-direction: column; flex: 1; }
.card-meta { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 8px; }
.card-badge {
  background: rgba(46, 156, 140, 0.1);
  color: var(--color-accent-secondary);
  font-size: 12px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 999px;
}
.card-date { font-size: 13px; color: var(--color-text-secondary); }
.card-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.4;
}
.card-excerpt {
  font-size: 14px;
  color: var(--color-text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 14px;
}
.card-link {
  margin-top: auto;
  color: var(--color-accent);
  font-size: 14px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap var(--transition-base);
}
.card-link:hover { gap: 8px; color: var(--color-accent-dark); }
.feature-card .card-title { font-size: 20px; }
@media (max-width: 767.98px) {
  .card-title { font-size: 17px; }
}

/* ===== 精选内容 ===== */
.feature-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.feature-grid .col-wide { grid-column: span 1; }
@media (max-width: 991.98px) {
  .feature-grid { grid-template-columns: 1fr; }
}
@media (max-width: 575.98px) {
  .feature-grid { grid-template-columns: 1fr; gap: 18px; }
}

/* ===== 动态双列 ===== */
.dynamic-grid { display: grid; grid-template-columns: 1fr 1.4fr; gap: 24px; align-items: start; }
.timeline-list { display: flex; flex-direction: column; gap: 20px; }
.timeline-item {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent-secondary);
  border-radius: var(--radius-md);
  padding: 20px 22px;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}
.timeline-item:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.timeline-item .card-date { margin-bottom: 6px; display: block; }
.timeline-item h3 { font-size: 18px; margin-bottom: 6px; }
.timeline-item p { font-size: 14px; color: var(--color-text-secondary); margin: 0; line-height: 1.6; }
.mini-list { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.mini-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
  display: flex;
  flex-direction: column;
}
.mini-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.mini-card h3 { font-size: 16px; margin-bottom: 6px; line-height: 1.4; }
.mini-card h3 a { color: var(--color-text); }
.mini-card h3 a:hover { color: var(--color-accent); }
.mini-card .card-date { font-size: 13px; color: var(--color-text-secondary); margin-top: auto; }
@media (max-width: 991.98px) {
  .dynamic-grid { grid-template-columns: 1fr; }
}
@media (max-width: 575.98px) {
  .mini-list { grid-template-columns: 1fr; }
}

/* ===== 空态 ===== */
.empty-state {
  padding: 48px 32px;
  text-align: center;
  background: var(--color-bg-card);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  font-size: 15px;
}
.empty-state svg { width: 42px; height: 42px; stroke: var(--color-accent-secondary); margin-bottom: 12px; }

/* ===== 横向滚动推荐 ===== */
.scroll-row {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  padding-bottom: 16px;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}
.scroll-row::-webkit-scrollbar { height: 4px; }
.scroll-row::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: 4px; }
.scroll-row .scroll-item { flex: 0 0 300px; scroll-snap-align: start; }

/* ===== 收藏 CTA ===== */
.fav-cta {
  background: rgba(217, 119, 46, 0.08);
  border: 1px solid rgba(217, 119, 46, 0.2);
  border-radius: var(--radius-lg);
  padding: 36px 42px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.fav-cta h3 { font-size: 22px; font-weight: 700; margin-bottom: 6px; }
.fav-cta p { color: var(--color-text-secondary); font-size: 15px; margin: 0; }
.fav-cta-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.fav-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: #fff;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
  cursor: pointer;
  transition: all var(--transition-base);
}
.fav-btn svg { width: 17px; height: 17px; }
.fav-btn:hover { border-color: var(--color-accent); color: var(--color-accent); box-shadow: var(--shadow-sm); }
@media (max-width: 767.98px) {
  .fav-cta { padding: 28px 24px; flex-direction: column; text-align: center; }
  .fav-cta-actions { width: 100%; }
  .fav-btn { flex: 1; justify-content: center; }
}

/* ===== FAQ ===== */
.accordion { --bs-accordion-border-width: 1px; --bs-accordion-border-color: var(--color-border); --bs-accordion-bg: var(--color-bg-card); --bs-accordion-border-radius: var(--radius-md); }
.accordion-item { border-radius: var(--radius-md) !important; overflow: hidden; margin-bottom: 14px; border: 1px solid var(--color-border); box-shadow: var(--shadow-sm); }
.accordion-button {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  background: var(--color-bg-card);
  padding: 18px 22px;
  box-shadow: none !important;
}
.accordion-button::after {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%232E9C8C' stroke-width='2.5' stroke-linecap='round'%3E%3Cpath d='M8 2v12M2 8h12'/%3E%3C/svg%3E");
  background-size: 16px;
  transition: transform 200ms ease;
}
.accordion-button:not(.collapsed) {
  background: var(--color-bg-card);
  color: var(--color-text);
}
.accordion-button:not(.collapsed)::after {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%23D9772E' stroke-width='2.5' stroke-linecap='round'%3E%3Cpath d='M2 8h12'/%3E%3C/svg%3E");
}
.accordion-button:focus { box-shadow: none; outline: 2px solid rgba(217,119,46,.2); }
.accordion-body { font-size: 14px; color: var(--color-text-secondary); line-height: 1.7; padding: 0 22px 22px; }

/* ===== 联系 CTA ===== */
.contact-cta {
  background: var(--color-primary);
  border-radius: var(--radius-xl);
  padding: 56px 48px;
  text-align: center;
  color: var(--color-on-dark);
  position: relative;
  overflow: hidden;
}
.contact-cta::after {
  content: '';
  position: absolute;
  left: 10%;
  top: -80%;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(46,156,140,.3), transparent 70%);
  pointer-events: none;
}
.contact-cta h2 { color: #fff; font-size: 30px; margin-bottom: 12px; }
.contact-cta p { color: rgba(242,239,233,.75); font-size: 16px; max-width: 560px; margin: 0 auto 30px; }
.contact-cta .btn-accent { padding: 12px 32px; font-size: 16px; }
.contact-cta .btn-outline-light { padding: 12px 28px; font-size: 16px; }
@media (max-width: 767.98px) {
  .contact-cta { padding: 40px 24px; }
  .contact-cta h2 { font-size: 24px; }
  .contact-cta .btn { width: 100%; }
}

/* ===== 页脚 ===== */
.footer {
  background: var(--color-primary);
  color: var(--color-on-dark);
  margin-top: 72px;
}
.footer-top { padding: 56px 0 40px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 36px; }
.footer-brand { display: flex; align-items: center; gap: 8px; font-size: 20px; font-weight: 700; color: #fff; margin-bottom: 14px; }
.footer-brand svg { width: 28px; height: 28px; }
.footer-desc { font-size: 14px; line-height: 1.7; color: rgba(242,239,233,.65); margin: 0; max-width: 260px; }
.footer h4 { color: #fff; font-size: 16px; font-weight: 600; margin-bottom: 18px; letter-spacing: .02em; }
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: rgba(242,239,233,.65); font-size: 14px; transition: color var(--transition-base), padding-left var(--transition-base); }
.footer-links a:hover { color: var(--color-accent); padding-left: 4px; }
.footer-contact { list-style: none; padding: 0; margin: 0; }
.footer-contact li { display: flex; align-items: flex-start; gap: 8px; color: rgba(242,239,233,.75); font-size: 14px; margin-bottom: 10px; }
.footer-contact svg { width: 16px; height: 16px; flex-shrink: 0; margin-top: 4px; opacity: .7; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 13px;
  color: rgba(242,239,233,.55);
}
.footer-bottom a { color: rgba(242,239,233,.55); transition: color var(--transition-base); }
.footer-bottom a:hover { color: #fff; }
@media (max-width: 991.98px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 575.98px) {
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .footer-top { padding: 40px 0 30px; }
}

/* ===== 通用辅助 ===== */
.text-accent { color: var(--color-accent); }
.text-secondary-custom { color: var(--color-text-secondary); }
.bg-soft { background: var(--color-bg-soft); }

/* roulang page: category1 */
:root {
      --color-primary: #1F2428;
      --color-accent: #D9772E;
      --color-accent-dark: #C86422;
      --color-accent-secondary: #2E9C8C;
      --color-bg: #F6F4EF;
      --color-bg-card: #FFFFFF;
      --color-bg-soft: #EBE9E3;
      --color-text: #25282D;
      --color-text-secondary: #6A6F76;
      --color-border: #E0DDD5;
      --color-on-dark: #F2EFE9;
      --radius-sm: 8px;
      --radius-md: 12px;
      --radius-lg: 20px;
      --shadow-card: 0 1px 3px rgba(0,0,0,.05), 0 4px 12px rgba(0,0,0,.04);
      --shadow-hover: 0 8px 24px rgba(0,0,0,.10);
      --shadow-panel: 0 12px 32px rgba(0,0,0,.12);
      --font-sans: -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      font-family: var(--font-sans);
      font-size: 16px;
      line-height: 1.75;
      background: var(--color-bg);
      color: var(--color-text);
    }
    h1, h2, h3, h4, h5, h6 {
      font-weight: 700;
      letter-spacing: .01em;
      margin: 0 0 12px;
      line-height: 1.3;
    }
    p { margin: 0 0 16px; }
    a { color: var(--color-accent-secondary); text-decoration: none; transition: color .15s ease; }
    a:hover { color: var(--color-accent-dark); }
    img { max-width: 100%; display: block; }
    .container { max-width: 1200px; }

    /* 导航 */
    .site-header {
      position: fixed;
      top: 0; left: 0; right: 0;
      z-index: 1000;
      padding: 16px 24px 0;
      pointer-events: none;
    }
    .site-nav {
      pointer-events: auto;
      display: flex;
      align-items: center;
      gap: 14px;
      background: var(--color-primary);
      border-radius: 16px;
      padding: 10px 20px;
      box-shadow: var(--shadow-panel);
      flex-wrap: wrap;
    }
    .nav-brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      color: var(--color-on-dark);
      font-weight: 600;
      font-size: 18px;
      white-space: nowrap;
      text-decoration: none;
    }
    .nav-brand:hover { color: #fff; }
    .nav-brand svg { width: 30px; height: 30px; flex-shrink: 0; }
    .nav-toggle {
      display: none;
      background: rgba(255,255,255,.08);
      border: none;
      border-radius: 8px;
      color: var(--color-on-dark);
      width: 38px; height: 38px;
      align-items: center;
      justify-content: center;
      margin-left: auto;
    }
    .nav-toggle:focus { outline: 2px solid var(--color-accent); outline-offset: 2px; }
    .nav-cats {
      display: flex;
      align-items: center;
      gap: 8px;
      flex: 1;
      justify-content: center;
      flex-wrap: wrap;
    }
    .nav-cat-item {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 8px 16px;
      border-radius: 999px;
      background: rgba(255,255,255,.08);
      color: var(--color-on-dark);
      font-size: 14px;
      font-weight: 500;
      text-decoration: none;
      transition: background .15s ease, color .15s ease, transform .15s ease;
      white-space: nowrap;
      border: 1px solid transparent;
    }
    .nav-cat-item svg { width: 16px; height: 16px; flex-shrink: 0; }
    .nav-cat-item:hover {
      background: rgba(217,119,46,.2);
      color: #fff;
      transform: translateY(-1px);
    }
    .nav-cat-item.active {
      background: var(--color-accent);
      color: #fff;
    }
    .nav-cat-item.active:hover { background: var(--color-accent-dark); }
    .nav-cta { margin-left: auto; flex-shrink: 0; }
    .btn-cta-compact {
      display: inline-flex;
      align-items: center;
      padding: 8px 18px;
      background: var(--color-accent);
      color: #fff;
      border-radius: 8px;
      font-weight: 600;
      font-size: 14px;
      text-decoration: none;
      transition: background .15s ease, transform .15s ease, box-shadow .15s ease;
      border: none;
      white-space: nowrap;
    }
    .btn-cta-compact:hover {
      background: var(--color-accent-dark);
      transform: translateY(-2px);
      box-shadow: 0 6px 16px rgba(217,119,46,.3);
      color: #fff;
    }
    .btn-cta-compact:active { transform: translateY(0); }
    .btn-cta-compact:focus, .nav-brand:focus, .nav-cat-item:focus { outline: 2px solid var(--color-accent); outline-offset: 2px; }

    main { padding-top: 96px; }

    /* 通用按钮 */
    .btn-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 11px 26px;
      background: var(--color-accent);
      color: #fff !important;
      border-radius: 8px;
      font-weight: 600;
      font-size: 15px;
      text-decoration: none;
      border: 2px solid transparent;
      transition: background .15s ease, transform .15s ease, box-shadow .15s ease;
    }
    .btn-primary:hover {
      background: var(--color-accent-dark);
      transform: translateY(-2px);
      box-shadow: 0 6px 18px rgba(217,119,46,.28);
    }
    .btn-primary:active { transform: translateY(0); }
    .btn-primary:focus, .btn-secondary:focus { outline: 2px solid var(--color-accent); outline-offset: 2px; }

    .btn-secondary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 11px 26px;
      background: transparent;
      color: var(--color-accent) !important;
      border: 1.5px solid var(--color-accent);
      border-radius: 8px;
      font-weight: 600;
      font-size: 15px;
      text-decoration: none;
      transition: background .12s ease, transform .12s ease;
    }
    .btn-secondary:hover {
      background: rgba(217,119,46,.1);
      transform: translateY(-2px);
      color: var(--color-accent-dark) !important;
    }
    .btn-secondary:active { transform: translateY(0); }

    /* Hero */
    .page-hero {
      position: relative;
      margin: 24px;
      border-radius: var(--radius-lg);
      padding: 72px 56px 56px;
      min-height: 400px;
      display: flex;
      align-items: center;
      background: linear-gradient(105deg, rgba(246,244,239,.96) 0%, rgba(246,244,239,.88) 45%, rgba(246,244,239,.65) 100%),
      url('/assets/images/backpic/back-1.png') center/cover no-repeat;
      overflow: hidden;
    }
    .page-hero::after {
      content: '';
      position: absolute;
      right: -60px; bottom: -80px;
      width: 320px; height: 320px;
      background: radial-gradient(circle, rgba(217,119,46,.18) 0%, transparent 70%);
      border-radius: 50%;
      pointer-events: none;
    }
    .hero-kicker {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 13px;
      font-weight: 600;
      letter-spacing: .04em;
      color: var(--color-accent);
      background: rgba(217,119,46,.12);
      padding: 6px 14px;
      border-radius: 999px;
      margin-bottom: 18px;
    }
    .page-hero h1 {
      font-size: 44px;
      font-weight: 800;
      color: var(--color-primary);
      margin-bottom: 8px;
    }
    .hero-subtitle {
      font-size: 20px;
      font-weight: 600;
      color: var(--color-primary);
      margin-bottom: 12px;
    }
    .hero-desc {
      font-size: 16px;
      color: var(--color-text-secondary);
      max-width: 520px;
      line-height: 1.7;
    }
    .hero-actions {
      display: flex;
      gap: 14px;
      flex-wrap: wrap;
      margin-top: 24px;
    }

    /* 区块通用 */
    .section { padding: 64px 0; }
    .section-head {
      margin-bottom: 36px;
    }
    .section-head h2 {
      font-size: 28px;
      font-weight: 700;
      color: var(--color-primary);
      position: relative;
      padding-left: 16px;
    }
    .section-head h2::before {
      content: '';
      position: absolute;
      left: 0; top: 6px; bottom: 6px;
      width: 4px;
      background: var(--color-accent);
      border-radius: 4px;
    }
    .section-head p { color: var(--color-text-secondary); font-size: 15px; margin-top: 8px; }
    .section-head.center h2 { padding-left: 0; }
    .section-head.center h2::before { display: none; }
    .section-head.center { text-align: center; }
    .bg-soft { background: var(--color-bg-soft); }

    /* 核心能力 */
    .feature-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }
    .feature-item {
      background: var(--color-bg-card);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      padding: 28px 24px;
      transition: box-shadow .15s ease, transform .15s ease;
    }
    .feature-item:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-2px);
    }
    .feature-icon {
      width: 52px; height: 52px;
      border-radius: 12px;
      background: rgba(46,156,140,.12);
      display: flex;
      align-items: center;
      justify-content: center;
      margin-bottom: 16px;
      color: var(--color-accent-secondary);
    }
    .feature-icon svg { width: 26px; height: 26px; }
    .feature-item h3 { font-size: 18px; margin-bottom: 8px; }
    .feature-item p { font-size: 14px; color: var(--color-text-secondary); margin: 0; line-height: 1.65; }

    /* 产品卡片网格 */
    .card-grid-3 {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .content-card {
      background: var(--color-bg-card);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: transform .15s ease, box-shadow .15s ease;
      display: flex;
      flex-direction: column;
    }
    .content-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }
    .card-cover {
      aspect-ratio: 16 / 9;
      overflow: hidden;
      background: var(--color-bg-soft);
    }
    .card-cover img {
      width: 100%; height: 100%;
      object-fit: cover;
      transition: transform .3s ease;
    }
    .content-card:hover .card-cover img { transform: scale(1.04); }
    .card-body-custom {
      padding: 20px;
      display: flex;
      flex-direction: column;
      flex: 1;
    }
    .card-meta {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 10px;
    }
    .badge-cat {
      display: inline-block;
      padding: 3px 12px;
      font-size: 12px;
      font-weight: 600;
      background: rgba(46,156,140,.1);
      color: var(--color-accent-secondary);
      border-radius: 999px;
    }
    .card-date {
      font-size: 13px;
      color: var(--color-text-secondary);
    }
    .card-body-custom h3 {
      font-size: 18px;
      font-weight: 700;
      margin-bottom: 8px;
      line-height: 1.4;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }
    .card-body-custom p {
      font-size: 14px;
      color: var(--color-text-secondary);
      line-height: 1.65;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
      flex: 1;
    }
    .card-link {
      display: inline-flex;
      align-items: center;
      gap: 4px;
      font-size: 14px;
      font-weight: 600;
      color: var(--color-accent);
      text-decoration: none;
      margin-top: 14px;
      transition: gap .15s ease, color .15s ease;
    }
    .card-link:hover { gap: 8px; color: var(--color-accent-dark); }
    .card-link svg { width: 16px; height: 16px; }

    /* 应用场景 */
    .scenario-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      justify-content: center;
      max-width: 820px;
      margin: 0 auto;
    }
    .scenario-tags span {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 12px 26px;
      background: var(--color-bg-card);
      border: 1px solid var(--color-border);
      border-radius: 999px;
      font-size: 15px;
      font-weight: 600;
      color: var(--color-primary);
      transition: border-color .15s ease, box-shadow .15s ease, transform .15s ease;
    }
    .scenario-tags span::before {
      content: '';
      width: 6px; height: 6px;
      background: var(--color-accent-secondary);
      border-radius: 50%;
      flex-shrink: 0;
    }
    .scenario-tags span:hover {
      border-color: var(--color-accent);
      transform: translateY(-2px);
      box-shadow: var(--shadow-card);
    }

    /* 流程 */
    .process-steps {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      counter-reset: step;
    }
    .step {
      background: var(--color-bg-card);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      padding: 28px 24px;
      position: relative;
      transition: box-shadow .15s ease, transform .15s ease;
    }
    .step:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-2px);
    }
    .step-num {
      display: inline-block;
      font-size: 32px;
      font-weight: 800;
      color: var(--color-accent);
      line-height: 1;
      margin-bottom: 14px;
      font-style: normal;
    }
    .step h3 { font-size: 18px; margin-bottom: 8px; }
    .step p { font-size: 14px; color: var(--color-text-secondary); margin: 0; }
    .step-arrow {
      position: absolute;
      right: -16px; top: 50%;
      transform: translateY(-50%);
      color: var(--color-border);
      z-index: 2;
    }
    .step-arrow svg { width: 18px; height: 18px; }

    /* 数据统计 */
    .stats-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }
    .stat-item {
      background: var(--color-bg-card);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-md);
      padding: 32px 20px;
      text-align: center;
      transition: box-shadow .15s ease, transform .15s ease;
    }
    .stat-item:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-2px);
    }
    .stat-item strong {
      display: block;
      font-size: 38px;
      font-weight: 800;
      color: var(--color-primary);
      line-height: 1.2;
      letter-spacing: -.02em;
    }
    .stat-item span {
      display: block;
      font-size: 14px;
      color: var(--color-text-secondary);
      margin-top: 6px;
    }

    /* FAQ */
    .accordion { max-width: 860px; margin: 0 auto; }
    .accordion-item {
      border: 1px solid var(--color-border) !important;
      border-radius: var(--radius-md) !important;
      margin-bottom: 14px;
      overflow: hidden;
      box-shadow: var(--shadow-card);
    }
    .accordion-button {
      font-size: 16px;
      font-weight: 600;
      color: var(--color-text) !important;
      background: var(--color-bg-card) !important;
      padding: 18px 22px;
      box-shadow: none !important;
      border: none;
    }
    .accordion-button:focus { outline: 2px solid rgba(46,156,140,.4); box-shadow: none !important; }
    .accordion-button:not(.collapsed) { background: var(--color-bg-card) !important; }
    .accordion-button::after {
      content: '+';
      background-image: none !important;
      font-size: 24px;
      font-weight: 300;
      color: var(--color-accent-secondary);
      width: auto; height: auto;
      line-height: 1;
      transition: none;
    }
    .accordion-button:not(.collapsed)::after {
      content: '−';
      color: var(--color-accent);
      transform: none;
    }
    .accordion-body {
      padding: 0 22px 20px;
      font-size: 14px;
      color: var(--color-text-secondary);
      line-height: 1.7;
      background: var(--color-bg-card);
      border-top: 1px solid var(--color-bg-soft);
    }

    /* CTA */
    .cta-box {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 28px;
      background: rgba(217,119,46,.08);
      border: 1px solid rgba(217,119,46,.18);
      border-radius: var(--radius-lg);
      padding: 44px 48px;
    }
    .cta-box h2 { font-size: 24px; margin-bottom: 8px; }
    .cta-box p { color: var(--color-text-secondary); margin: 0; font-size: 15px; }
    .cta-actions { display: flex; gap: 12px; flex-shrink: 0; }

    /* 页脚 */
    .footer {
      background: var(--color-primary);
      color: var(--color-on-dark);
      padding: 56px 0 24px;
      margin-top: 64px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1.3fr;
      gap: 40px;
      margin-bottom: 40px;
    }
    .footer-brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-size: 18px;
      font-weight: 600;
      color: var(--color-on-dark);
      margin-bottom: 14px;
    }
    .footer-brand svg { width: 30px; height: 30px; flex-shrink: 0; }
    .footer-desc {
      font-size: 14px;
      color: rgba(242,239,233,.7);
      line-height: 1.7;
      margin-bottom: 0;
      max-width: 260px;
    }
    .footer h4 {
      font-size: 15px;
      font-weight: 600;
      color: var(--color-on-dark);
      margin-bottom: 14px;
    }
    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-links li { margin-bottom: 8px; }
    .footer-links a {
      color: rgba(242,239,233,.65);
      font-size: 14px;
      text-decoration: none;
      transition: color .15s ease, padding-left .15s ease;
    }
    .footer-links a:hover { color: var(--color-accent); padding-left: 4px; }
    .footer-contact {
      list-style: none;
      padding: 0;
      margin: 0;
    }
    .footer-contact li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      margin-bottom: 12px;
      font-size: 14px;
      color: rgba(242,239,233,.75);
      line-height: 1.6;
    }
    .footer-contact svg {
      width: 16px; height: 16px;
      flex-shrink: 0;
      margin-top: 3px;
      color: var(--color-accent-secondary);
    }
    .footer-bottom {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding-top: 24px;
      border-top: 1px solid rgba(255,255,255,.08);
      font-size: 13px;
      color: rgba(242,239,233,.6);
    }
    .footer-bottom a {
      color: rgba(242,239,233,.6);
      text-decoration: none;
      transition: color .15s ease;
    }
    .footer-bottom a:hover { color: var(--color-accent); }

    /* 响应式 */
    @media (max-width: 1024px) {
      .feature-grid { grid-template-columns: repeat(2, 1fr); }
      .process-steps { grid-template-columns: repeat(2, 1fr); }
      .stats-grid { grid-template-columns: repeat(2, 1fr); }
      .card-grid-3 { grid-template-columns: repeat(2, 1fr); }
      .cta-box { flex-direction: column; align-items: flex-start; padding: 32px; }
    }
    @media (max-width: 991.98px) {
      .site-header { padding: 12px 16px 0; }
      .site-nav { gap: 10px; }
      .nav-toggle { display: inline-flex; }
      .nav-cats {
        width: 100%;
        flex-direction: column;
        align-items: stretch;
        background: rgba(255,255,255,.04);
        border-radius: var(--radius-md);
        padding: 10px;
        order: 3;
      }
      .nav-cat-item { justify-content: flex-start; }
      .nav-cta { margin-left: 0; order: 2; }
      .page-hero { margin: 16px; padding: 48px 28px; min-height: 360px; }
      .page-hero h1 { font-size: 34px; }
      .hero-subtitle { font-size: 17px; }
      .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
    }
    @media (max-width: 767.98px) {
      main { padding-top: 84px; }
      .page-hero { padding: 40px 20px; min-height: 320px; border-radius: 16px; }
      .page-hero h1 { font-size: 28px; }
      .hero-desc { font-size: 15px; }
      .section { padding: 40px 0; }
      .section-head { margin-bottom: 28px; }
      .feature-grid { grid-template-columns: 1fr; }
      .card-grid-3 { grid-template-columns: 1fr; }
      .stats-grid { grid-template-columns: 1fr 1fr; gap: 14px; }
      .stat-item { padding: 24px 12px; }
      .stat-item strong { font-size: 30px; }
      .process-steps { grid-template-columns: 1fr; }
      .cta-box { padding: 28px 20px; }
      .cta-actions { flex-direction: column; width: 100%; }
      .cta-actions .btn-primary, .cta-actions .btn-secondary { width: 100%; }
      .footer-grid { grid-template-columns: 1fr; gap: 28px; }
      .footer-bottom { flex-direction: column; gap: 10px; text-align: center; }
      .hero-actions { flex-direction: column; width: 100%; }
      .hero-actions .btn-primary, .hero-actions .btn-secondary { width: 100%; }
    }
    @media (max-width: 520px) {
      .site-nav { padding: 8px 12px; }
      .nav-brand span { font-size: 16px; }
      .nav-cat-item { font-size: 14px; }
      .btn-cta-compact { padding: 7px 14px; font-size: 13px; }
      .scenario-tags span { padding: 10px 18px; font-size: 14px; }
      .accordion-button { font-size: 15px; padding: 16px 16px; }
    }

/* roulang page: article */
:root {
            --color-primary: #1F2428;
            --color-accent: #D9772E;
            --color-accent-hover: #C86422;
            --color-accent-secondary: #2E9C8C;
            --color-bg: #F6F4EF;
            --color-bg-card: #FFFFFF;
            --color-bg-soft: #EBE9E3;
            --color-text: #25282D;
            --color-text-secondary: #6A6F76;
            --color-border: #E0DDD5;
            --color-on-dark: #F2EFE9;
            --radius-card: 12px;
            --radius-btn: 8px;
            --shadow-card: 0 1px 3px rgba(0,0,0,.05), 0 4px 12px rgba(0,0,0,.04);
            --shadow-hover: 0 8px 24px rgba(0,0,0,.10);
        }
        * { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
            background: var(--color-bg);
            color: var(--color-text);
            line-height: 1.75;
            font-size: 16px;
        }
        .container { max-width: 1200px; padding: 0 24px; margin: 0 auto; }
        a { color: var(--color-accent-secondary); text-decoration: none; transition: color .15s; }
        a:hover { color: var(--color-accent); }
        img { max-width: 100%; }
        svg { flex-shrink: 0; }
        .btn-primary,
        .btn-secondary,
        .btn-cta-compact { display: inline-block; border: 0; cursor: pointer; border-radius: var(--radius-btn); font-weight: 600; transition: all .15s ease; }
        .btn-primary { background: var(--color-accent); color: #fff; padding: 10px 24px; }
        .btn-primary:hover { background: var(--color-accent-hover); color: #fff; transform: translateY(-2px); box-shadow: 0 6px 16px rgba(217,119,46,.3); }
        .btn-primary:active { transform: translateY(0); }
        .btn-secondary { background: transparent; border: 1.5px solid var(--color-accent); color: var(--color-accent); padding: 8px 22px; }
        .btn-secondary:hover { background: rgba(217,119,46,.1); color: var(--color-accent-hover); }
        .btn-cta-compact { background: var(--color-accent); color: #fff; padding: 8px 18px; font-size: 14px; }
        .btn-cta-compact:hover { background: var(--color-accent-hover); color: #fff; transform: translateY(-2px); box-shadow: 0 4px 12px rgba(217,119,46,.3); }

        .site-nav {
            display: flex;
            align-items: center;
            gap: 18px;
            margin: 16px 24px;
            padding: 14px 20px;
            background: var(--color-primary);
            border-radius: 16px;
            box-shadow: 0 12px 32px rgba(0,0,0,.12);
            position: relative;
            z-index: 100;
        }
        .nav-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: #fff !important;
            font-weight: 600;
            font-size: 18px;
            letter-spacing: .02em;
            flex-shrink: 0;
        }
        .nav-brand svg { width: 32px; height: 32px; }
        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border: 0;
            background: rgba(255,255,255,.08);
            border-radius: 8px;
            color: var(--color-on-dark);
            place-items: center;
        }
        .nav-cats { display: flex; align-items: center; gap: 10px; flex: 1; overflow-x: auto; }
        .nav-cat-item {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            border-radius: 999px;
            background: rgba(255,255,255,.08);
            color: rgba(255,255,255,.85) !important;
            font-size: 14px;
            font-weight: 500;
            white-space: nowrap;
            transition: background .15s, color .15s;
        }
        .nav-cat-item svg { width: 16px; height: 16px; }
        .nav-cat-item:hover { background: rgba(217,119,46,.25); color: #fff !important; }
        .nav-cat-item.active { background: rgba(217,119,46,.25); color: #fff; }
        .nav-cta { margin-left: auto; flex-shrink: 0; }

        .article-banner {
            background: linear-gradient(135deg, rgba(31,36,40,.96), rgba(31,36,40,.78)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            border-radius: 20px;
            margin: 24px 24px 40px;
            padding: 56px 48px;
            position: relative;
            color: var(--color-on-dark);
        }
        .breadcrumb-nav {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: rgba(255,255,255,.6);
            margin-bottom: 18px;
        }
        .breadcrumb-nav a { color: rgba(255,255,255,.75); }
        .breadcrumb-nav a:hover { color: var(--color-accent); }
        .breadcrumb-nav .current { color: rgba(255,255,255,.95); font-weight: 500; max-width: 320px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
        .article-banner h1 {
            font-size: 38px;
            font-weight: 800;
            letter-spacing: .01em;
            line-height: 1.3;
            color: #fff;
            max-width: 820px;
            margin-bottom: 18px;
        }
        .article-meta { display: flex; align-items: center; flex-wrap: wrap; gap: 18px; font-size: 13px; color: rgba(255,255,255,.7); }
        .badge-cat {
            display: inline-block;
            padding: 4px 14px;
            background: rgba(46,156,140,.2);
            color: #7FD6C8;
            border-radius: 999px;
            font-weight: 600;
            font-size: 13px;
        }
        .meta-item { display: inline-flex; align-items: center; gap: 6px; }
        .meta-item svg { width: 15px; height: 15px; }

        .article-section { padding: 0 0 56px; }
        .article-main { max-width: 780px; margin: 0 auto; }
        .article-card {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            padding: 48px;
        }
        .article-body { max-width: 100%; }
        .article-body p { margin-bottom: 24px; line-height: 1.75; }
        .article-body h2 {
            font-size: 24px;
            font-weight: 700;
            margin: 40px 0 16px;
            padding-left: 12px;
            border-left: 4px solid var(--color-accent);
        }
        .article-body h3 { font-size: 20px; font-weight: 700; margin: 32px 0 12px; }
        .article-body h4 { font-size: 18px; font-weight: 700; margin: 24px 0 8px; }
        .article-body ul, .article-body ol { margin: 0 0 24px 20px; }
        .article-body li { margin-bottom: 8px; }
        .article-body blockquote {
            margin: 32px 0;
            padding: 16px 24px;
            background: var(--color-bg-soft);
            border-left: 3px solid var(--color-accent-secondary);
            border-radius: 0 8px 8px 0;
            color: var(--color-text-secondary);
            font-size: 15px;
        }
        .article-body img { max-width: 100%; border-radius: 8px; margin: 24px 0; }
        .article-body figure { margin: 24px 0; }
        .article-body figcaption { text-align: center; font-size: 13px; color: var(--color-text-secondary); margin-top: 8px; }
        .article-body pre {
            background: var(--color-primary);
            color: var(--color-on-dark);
            padding: 20px;
            border-radius: var(--radius-card);
            overflow-x: auto;
            font-size: 14px;
            line-height: 1.6;
            margin: 24px 0;
        }
        .article-body code { background: var(--color-bg-soft); padding: 2px 6px; border-radius: 4px; font-size: 14px; }
        .article-body pre code { background: transparent; padding: 0; color: inherit; }
        .article-body table { width: 100%; border-collapse: collapse; margin: 24px 0; font-size: 14px; }
        .article-body table th { background: var(--color-primary); color: #fff; padding: 12px 14px; font-weight: 600; text-align: left; }
        .article-body table td { padding: 10px 14px; border-bottom: 1px solid var(--color-border); }
        .article-body table tr:nth-child(even) { background: rgba(0,0,0,.02); }
        .article-body a { text-decoration: underline; }

        .article-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 36px; }
        .tag-item {
            display: inline-block;
            padding: 4px 14px;
            border: 1px solid var(--color-accent);
            border-radius: 999px;
            color: var(--color-accent);
            font-size: 13px;
            font-weight: 500;
            background: transparent;
        }

        .article-pager {
            display: flex;
            justify-content: space-between;
            gap: 20px;
            margin-top: 48px;
            padding-top: 28px;
            border-top: 1px solid var(--color-border);
        }
        .pager-link {
            flex: 1;
            display: inline-flex;
            align-items: center;
            gap: 12px;
            padding: 14px 18px;
            background: var(--color-bg-soft);
            border-radius: var(--radius-card);
            color: var(--color-accent-secondary);
            transition: background .15s, transform .15s, box-shadow .15s;
            font-size: 14px;
            font-weight: 600;
            max-width: 360px;
        }
        .pager-link:hover { background: #fff; color: var(--color-accent); box-shadow: var(--shadow-hover); transform: translateY(-2px); }
        .pager-link:last-child { text-align: right; justify-content: flex-end; margin-left: auto; }
        .pager-arrow { font-size: 20px; opacity: .8; }
        .pager-text small { display: block; font-size: 12px; color: var(--color-text-secondary); font-weight: 400; margin-bottom: 2px; }

        .not-found-card { text-align: center; padding: 48px 24px; }
        .not-found-card .nf-icon {
            width: 72px;
            height: 72px;
            border-radius: 50%;
            background: rgba(46,156,140,.1);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
        }
        .not-found-card .nf-icon svg { width: 34px; height: 34px; stroke: var(--color-accent-secondary); }
        .not-found-card h2 { font-size: 24px; font-weight: 700; margin-bottom: 10px; }
        .not-found-card p { color: var(--color-text-secondary); margin-bottom: 24px; }

        .related-section { padding: 64px 0 0; }
        .section-head { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 32px; }
        .section-title { font-size: 28px; font-weight: 700; letter-spacing: .01em; margin: 0; }
        .section-link { font-size: 14px; color: var(--color-accent-secondary); }
        .related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
        .card {
            background: var(--color-bg-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: transform .15s, box-shadow .15s;
            height: 100%;
        }
        .card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
        .card-cover { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; background: var(--color-bg-soft); display: block; }
        .card-body { padding: 20px; }
        .card-meta { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
        .card-meta .badge { background: rgba(46,156,140,.12); color: var(--color-accent-secondary); font-size: 12px; font-weight: 600; padding: 4px 10px; border-radius: 999px; }
        .card-time { font-size: 13px; color: var(--color-text-secondary); }
        .card-title { font-size: 18px; font-weight: 700; line-height: 1.4; margin-bottom: 8px; }
        .card-title a { color: var(--color-text); }
        .card-title a:hover { color: var(--color-accent); }
        .card-desc {
            font-size: 14px;
            color: var(--color-text-secondary);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 14px;
        }
        .card-link { font-size: 14px; font-weight: 600; color: var(--color-accent); display: inline-flex; align-items: center; gap: 4px; transition: gap .15s; }
        .card-link:hover { color: var(--color-accent-hover); gap: 8px; }

        .cta-section { padding: 64px 0 20px; }
        .cta-banner {
            background: rgba(217,119,46,.08);
            border: 1px solid rgba(217,119,46,.18);
            border-radius: 20px;
            padding: 36px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 24px;
        }
        .cta-text h3 { font-size: 22px; font-weight: 700; margin-bottom: 6px; }
        .cta-text p { font-size: 14px; color: var(--color-text-secondary); margin: 0; }
        .cta-actions { display: flex; gap: 12px; flex-wrap: wrap; }
        .btn-icon {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 18px;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-btn);
            background: #fff;
            color: var(--color-text);
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            transition: all .15s;
        }
        .btn-icon svg { width: 16px; height: 16px; }
        .btn-icon:hover { border-color: var(--color-accent); color: var(--color-accent); transform: translateY(-2px); box-shadow: var(--shadow-hover); }

        .footer {
            background: var(--color-primary);
            color: rgba(255,255,255,.75);
            padding: 56px 0 0;
            margin-top: 64px;
        }
        .footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 40px; }
        .footer-brand { display: flex; align-items: center; gap: 10px; font-size: 18px; font-weight: 700; color: #fff; margin-bottom: 16px; }
        .footer-brand svg { width: 32px; height: 32px; }
        .footer-desc { font-size: 14px; line-height: 1.7; opacity: .7; max-width: 300px; }
        .footer h4 { font-size: 15px; font-weight: 600; color: #fff; margin-bottom: 18px; }
        .footer-links { list-style: none; padding: 0; margin: 0; }
        .footer-links li { margin-bottom: 12px; }
        .footer-links a { color: rgba(255,255,255,.65); font-size: 14px; transition: color .15s; }
        .footer-links a:hover { color: var(--color-accent); }
        .footer-contact { list-style: none; padding: 0; margin: 0; }
        .footer-contact li { display: flex; align-items: flex-start; gap: 10px; margin-bottom: 14px; font-size: 14px; color: rgba(255,255,255,.65); }
        .footer-contact svg { width: 17px; height: 17px; flex-shrink: 0; margin-top: 3px; stroke: var(--color-accent-secondary); }
        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,.1);
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: rgba(255,255,255,.5);
        }
        .footer-bottom a { color: rgba(255,255,255,.5); }
        .footer-bottom a:hover { color: var(--color-accent); }

        @media (max-width: 991.98px) {
            .site-nav { flex-wrap: wrap; margin: 12px 16px; padding: 12px 16px; border-radius: 14px; }
            .nav-toggle { display: grid; margin-left: auto; }
            .nav-cats {
                width: 100%;
                flex-direction: column;
                align-items: stretch;
                gap: 8px;
                padding-top: 12px;
            }
            .nav-cta { width: 100%; margin-top: 12px; }
            .btn-cta-compact { width: 100%; text-align: center; }
            .article-banner { margin: 16px 16px 32px; padding: 40px 28px; border-radius: 16px; }
            .article-banner h1 { font-size: 30px; }
            .article-card { padding: 32px 24px; }
            .related-grid { grid-template-columns: repeat(2, 1fr); }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
        }
        @media (max-width: 767.98px) {
            .container { padding: 0 16px; }
            .article-banner { padding: 32px 20px; }
            .article-banner h1 { font-size: 26px; }
            .article-meta { gap: 12px; }
            .article-card { padding: 24px 16px; border-radius: 10px; }
            .article-body h2 { font-size: 21px; }
            .article-body h3 { font-size: 18px; }
            .article-pager { flex-direction: column; }
            .pager-link { max-width: 100%; }
            .related-grid { grid-template-columns: 1fr; gap: 16px; }
            .cta-banner { padding: 28px 20px; flex-direction: column; }
            .cta-actions { width: 100%; }
            .cta-actions .btn-primary,
            .cta-actions .btn-icon { flex: 1; justify-content: center; }
            .footer-grid { grid-template-columns: 1fr; gap: 28px; }
            .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
        }
        @media (max-width: 520px) {
            .nav-cat-item { justify-content: center; }
            .article-banner h1 { font-size: 23px; }
            .breadcrumb-nav { font-size: 12px; }
            .meta-item { font-size: 12px; }
            .badge-cat { font-size: 12px; }
        }