/* roulang page: index */
/* ========== 设计变量 ========== */
:root {
  --primary: #1a3a5c;
  --primary-dark: #122a45;
  --primary-light: #2c5680;
  --accent: #e85d3f;
  --accent-hover: #d44a2e;
  --accent-soft: #fff1ed;
  --bg: #f5f8fc;
  --bg-alt: #ffffff;
  --bg-dark: #122a45;
  --text: #172033;
  --text-light: #5a6b7d;
  --text-muted: #8a9ab0;
  --border: #e3eaf1;
  --border-dark: #d0dbe8;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 10px rgba(23, 32, 51, 0.06);
  --shadow-md: 0 8px 24px rgba(23, 32, 51, 0.09);
  --shadow-lg: 0 16px 48px rgba(23, 32, 51, 0.13);
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* ========== Reset / Base ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent); }
ul, ol { list-style: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; line-height: inherit; border: none; outline: none; }
button { cursor: pointer; background: none; }

/* 通用容器 */
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 960px; }

/* ========== 按钮 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  transition: var(--transition);
  white-space: nowrap;
  border: 2px solid transparent;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 14px rgba(232, 93, 63, 0.35);
}
.btn-primary:hover {
  background: var(--accent-hover);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(232, 93, 63, 0.4);
}
.btn-outline {
  background: transparent;
  border-color: var(--primary);
  color: var(--primary);
}
.btn-outline:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-2px);
}
.btn-light {
  background: #fff;
  color: var(--primary);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.1);
}
.btn-light:hover { background: var(--accent); color: #fff; transform: translateY(-2px); }
.btn-sm { padding: 8px 18px; font-size: 13px; }
.btn-lg { padding: 15px 36px; font-size: 16px; }
.btn:focus-visible { outline: 3px solid rgba(232, 93, 63, 0.4); outline-offset: 2px; }

/* ========== 标签 / 徽章 ========== */
.tag {
  display: inline-block;
  padding: 3px 12px;
  border-radius: 30px;
  font-size: 12px;
  font-weight: 600;
  background: var(--accent-soft);
  color: var(--accent);
}
.tag-blue { background: #e8f0fa; color: var(--primary-light); }
.tag-green { background: #e7f7ed; color: #1f8a4c; }
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  background: rgba(255,255,255,0.18);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.25);
  backdrop-filter: blur(6px);
}
.badge i { font-size: 10px; }

/* ========== Header / 导航 ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 12px rgba(23, 32, 51, 0.05);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
  gap: 16px;
}
.brand {
  font-size: 24px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.5px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.brand i { color: var(--accent); font-size: 26px; }
.main-nav { display: flex; align-items: center; gap: 8px; }
.nav-link {
  padding: 8px 16px;
  border-radius: 30px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
}
.nav-link:hover { color: var(--primary); background: #f0f5fa; }
.nav-link.active {
  color: var(--primary);
  background: #e8f0fa;
  font-weight: 700;
}
.header-cta { display: flex; align-items: center; gap: 12px; }

/* ========== Hero 首屏 ========== */
.hero {
  position: relative;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  padding: 110px 0;
  color: #fff;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(18, 42, 69, 0.92) 0%, rgba(26, 58, 92, 0.8) 50%, rgba(18, 42, 69, 0.45) 100%);
  z-index: 1;
}
.hero .container { position: relative; z-index: 2; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 40px;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.25);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.5px;
  margin-bottom: 20px;
  backdrop-filter: blur(6px);
}
.hero h1 {
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
  letter-spacing: -1px;
}
.hero h1 span {
  color: var(--accent);
  position: relative;
}
.hero h1 span::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 4px;
  height: 8px;
  background: rgba(232, 93, 63, 0.3);
  border-radius: 4px;
  z-index: -1;
}
.hero-text {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.9);
  max-width: 560px;
  margin-bottom: 32px;
  line-height: 1.8;
}
.hero-btns { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 44px; }
.hero-stats {
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  padding-top: 30px;
}
.hero-stat .num { font-size: 30px; font-weight: 800; }
.hero-stat .label { font-size: 13px; color: rgba(255, 255, 255, 0.7); }

/* ========== 板块通用 ========== */
.section { padding: 90px 0; }
.section-alt { background: var(--bg-alt); }
.section-title-wrap { max-width: 700px; margin-bottom: 48px; }
.section-tag { font-size: 13px; font-weight: 600; letter-spacing: 1px; color: var(--accent); text-transform: uppercase; margin-bottom: 8px; display: block; }
.section-title { font-size: clamp(26px, 3vw, 36px); font-weight: 800; line-height: 1.25; color: var(--primary); letter-spacing: -0.5px; }
.section-desc { font-size: 15px; color: var(--text-light); margin-top: 12px; line-height: 1.8; }
.section-head-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}
.section-head-row .section-title-wrap { margin-bottom: 0; }

/* ========== 核心服务卡片 ========== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.feature-card {
  background: var(--bg-alt);
  border-radius: var(--radius);
  padding: 32px 26px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.feature-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 3px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}
.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-dark);
}
.feature-card:hover::after { transform: scaleX(1); }
.feature-icon {
  width: 56px; height: 56px;
  border-radius: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: var(--accent);
  background: var(--accent-soft);
  margin-bottom: 18px;
}
.feature-card h3 { font-size: 19px; font-weight: 700; margin-bottom: 10px; color: var(--primary); }
.feature-card p { font-size: 14px; color: var(--text-light); line-height: 1.7; margin-bottom: 0; }

/* ========== 分类入口 ========== */
.category-section {
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-alt) 100%);
}
.category-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.category-card {
  background: var(--bg-alt);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.category-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.category-card-img {
  height: 200px;
  overflow: hidden;
  position: relative;
}
.category-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.category-card:hover .category-card-img img { transform: scale(1.05); }
.category-card-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(18, 42, 69, 0.35) 100%);
}
.category-card-body {
  padding: 26px 26px 30px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.category-card-body h3 { font-size: 22px; font-weight: 700; color: var(--primary); margin-bottom: 10px; }
.category-card-body p { font-size: 14px; color: var(--text-light); line-height: 1.7; flex: 1; }
.category-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}
.category-card-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* ========== 资讯列表 ========== */
.info-section { background: var(--bg-alt); }
.info-list-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.info-item {
  background: var(--bg);
  border-radius: var(--radius);
  padding: 24px 26px;
  border: 1px solid var(--border);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.info-item:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  background: var(--bg-alt);
}
.info-item-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.5;
  margin-bottom: 8px;
  display: block;
}
.info-item-title:hover { color: var(--accent); }
.info-item-desc {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.65;
  flex: 1;
  margin-bottom: 12px;
}
.info-item-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--text-muted);
}
.info-item-meta .time { display: flex; align-items: center; gap: 4px; }

/* ========== 数据统计 ========== */
.stats-section {
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  position: relative;
  padding: 90px 0;
  color: #fff;
}
.stats-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(18, 42, 69, 0.95), rgba(26, 58, 92, 0.85));
}
.stats-section .container { position: relative; z-index: 2; }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  text-align: center;
}
.stat-item {
  padding: 30px 20px;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(6px);
  transition: var(--transition);
}
.stat-item:hover {
  background: rgba(255, 255, 255, 0.14);
  transform: translateY(-4px);
}
.stat-num { font-size: 40px; font-weight: 800; line-height: 1.2; margin-bottom: 6px; }
.stat-label { font-size: 14px; color: rgba(255, 255, 255, 0.75); letter-spacing: 1px; }
.stat-icon { font-size: 24px; margin-bottom: 10px; color: var(--accent); }

/* ========== 流程步骤 ========== */
.steps-section { background: var(--bg); }
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: step;
}
.step-card {
  background: var(--bg-alt);
  border-radius: var(--radius);
  padding: 30px 22px;
  text-align: center;
  position: relative;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.step-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.step-num {
  width: 42px; height: 42px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.step-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; color: var(--primary); }
.step-card p { font-size: 13px; color: var(--text-light); line-height: 1.6; margin-bottom: 0; }

/* ========== FAQ ========== */
.faq-section { background: var(--bg-alt); }
.faq-grid { max-width: 820px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }
.faq-item {
  background: var(--bg);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  padding: 0;
  transition: var(--transition);
  overflow: hidden;
}
.faq-item:hover { border-color: var(--border-dark); }
.faq-question {
  padding: 18px 22px;
  font-size: 15px;
  font-weight: 600;
  color: var(--primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: none;
  width: 100%;
  text-align: left;
}
.faq-question i {
  color: var(--accent);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}
.faq-item.open .faq-question i { transform: rotate(45deg); }
.faq-answer {
  padding: 0 22px;
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.75;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.3s ease;
}
.faq-item.open .faq-answer {
  padding: 0 22px 18px;
  max-height: 300px;
}

/* ========== CTA ========== */
.cta-section {
  background-image: url('/assets/images/backpic/back-3.png');
  background-size: cover;
  background-position: center;
  position: relative;
  padding: 70px 0;
  color: #fff;
  text-align: center;
}
.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(232, 93, 63, 0.92), rgba(212, 74, 46, 0.85));
}
.cta-section .container { position: relative; z-index: 2; }
.cta-section h2 { font-size: 32px; font-weight: 800; margin-bottom: 14px; }
.cta-section p { font-size: 16px; max-width: 560px; margin: 0 auto 28px; opacity: 0.9; }
.cta-btns { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ========== Footer ========== */
.site-footer {
  background: var(--bg-dark);
  color: rgba(255, 255, 255, 0.8);
  padding: 60px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}
.footer-brand { font-size: 22px; font-weight: 800; color: #fff; margin-bottom: 12px; display: flex; align-items: center; gap: 8px; }
.footer-desc { font-size: 14px; line-height: 1.7; color: rgba(255, 255, 255, 0.65); margin-bottom: 16px; }
.footer-col-title { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 16px; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { font-size: 14px; color: rgba(255, 255, 255, 0.65); }
.footer-links a:hover { color: var(--accent); padding-left: 4px; }
.footer-social { display: flex; gap: 10px; margin-top: 16px; }
.footer-social a {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 14px;
}
.footer-social a:hover { background: var(--accent); transform: translateY(-2px); }
.footer-bottom {
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.45);
}

/* ========== 移动端底部Tab ========== */
.mobile-tabbar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: #fff;
  border-top: 1px solid var(--border);
  z-index: 200;
  box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.06);
}
.tabbar-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  height: 64px;
}
.tab-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  font-size: 11px;
  color: var(--text-muted);
}
.tab-item i { font-size: 18px; }
.tab-item.active { color: var(--accent); }
.tab-item span { font-weight: 500; }

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .container { padding: 0 20px; }
  .section { padding: 70px 0; }
  .feature-grid { gap: 20px; }
  .stats-grid { gap: 16px; }
  .steps-grid { gap: 16px; }
}
@media (max-width: 768px) {
  .site-header { display: none; }
  .mobile-tabbar { display: block; }
  body { padding-bottom: 64px; }
  .hero { padding: 80px 0; }
  .hero h1 { font-size: 30px; }
  .hero-stats { gap: 20px; }
  .feature-grid { grid-template-columns: 1fr; }
  .category-grid { grid-template-columns: 1fr; }
  .info-list-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 2fr 2fr; }
  .steps-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .section { padding: 56px 0; }
  .section-head-row { flex-direction: column; align-items: flex-start; }
  .hero-btns .btn { flex: 1; min-width: 140px; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .stats-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 26px; }
  .hero-text { font-size: 15px; }
  .hero-stat .num { font-size: 24px; }
  .btn-lg { padding: 13px 24px; font-size: 14px; }
  .section-title { font-size: 24px; }
  .feature-card { padding: 24px 18px; }
}

/* 焦点可访问性 */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* 空列表提示 */
.empty-tip {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-muted);
  font-size: 15px;
  background: var(--bg);
  border-radius: var(--radius);
  border: 1px dashed var(--border-dark);
  grid-column: 1 / -1;
}

/* 实用辅助 */
.text-center { text-align: center; }
.mt-1 { margin-top: 20px; }
.mb-1 { margin-bottom: 20px; }
.mb-2 { margin-bottom: 40px; }
.mb-3 { margin-bottom: 60px; }
.fade-up { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* roulang page: article */
:root{
  --primary:#1a3a5c;
  --primary-light:#2d7dd2;
  --primary-dark:#0f2740;
  --accent:#f59e0b;
  --accent-hover:#d97706;
  --bg:#f4f7fb;
  --white:#ffffff;
  --text:#1e293b;
  --text-light:#64748b;
  --border:#e2e8f0;
  --radius:12px;
  --radius-lg:20px;
  --shadow-sm:0 1px 3px rgba(0,0,0,.06);
  --shadow:0 4px 16px rgba(0,0,0,.08);
  --shadow-lg:0 12px 36px rgba(0,0,0,.1);
  --transition:all .3s ease;
  --font-main:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{font-family:var(--font-main);font-size:16px;line-height:1.7;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:var(--transition)}
a:hover{text-decoration:none}
button{font-family:inherit;cursor:pointer}
ul,ol{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.container.narrow{max-width:900px}
::selection{background:rgba(45,125,210,.18);color:var(--primary)}

/* header */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(26,58,92,.96);backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,255,255,.08);box-shadow:0 2px 16px rgba(0,0,0,.12)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:10px;font-size:1.3rem;font-weight:800;color:#fff;letter-spacing:.5px;transition:var(--transition)}
.brand i{color:var(--accent);font-size:1.4rem}
.brand:hover{color:var(--accent)}
.main-nav{display:flex;align-items:center;gap:8px}
.nav-link{display:inline-flex;align-items:center;padding:10px 18px;border-radius:8px;color:rgba(255,255,255,.85);font-weight:600;font-size:15px;transition:var(--transition);border:1px solid transparent}
.nav-link:hover{background:rgba(255,255,255,.08);color:#fff}
.nav-link.active{background:rgba(255,255,255,.16);color:#fff;border-color:rgba(255,255,255,.12)}
.header-cta{display:flex;align-items:center;gap:12px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 28px;border-radius:10px;font-weight:700;font-size:15px;border:none;cursor:pointer;transition:var(--transition);line-height:1.4}
.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.btn:active{transform:translateY(0)}
.btn:focus-visible{outline:3px solid rgba(245,158,11,.45);outline-offset:2px}
.btn-primary{background:var(--primary-light);color:#fff}
.btn-primary:hover{background:#1e6cb8}
.btn-accent{background:var(--accent);color:#1a2a3a}
.btn-accent:hover{background:var(--accent-hover);color:#fff}
.btn-sm{padding:8px 18px;font-size:14px}
.btn-outline{background:transparent;border:2px solid rgba(255,255,255,.6);color:#fff}
.btn-outline:hover{background:rgba(255,255,255,.1);border-color:#fff}

/* mobile bottom tab */
.mobile-tab-bar{display:none;position:fixed;bottom:0;left:0;right:0;z-index:1000;background:#fff;border-top:1px solid var(--border);box-shadow:0 -2px 16px rgba(0,0,0,.06);padding:6px 8px calc(6px + env(safe-area-inset-bottom));justify-content:space-around}
.tab-item{display:flex;flex-direction:column;align-items:center;gap:3px;padding:6px 12px;border-radius:12px;color:var(--text-light);font-size:11px;font-weight:600;transition:var(--transition);background:transparent;border:none}
.tab-item i{font-size:19px}
.tab-item:hover{color:var(--primary)}
.tab-item.active{color:var(--primary-light);background:rgba(45,125,210,.08)}
.tab-item.active i{color:var(--primary-light)}

/* page spacer */
.page-spacer{height:68px}

/* breadcrumb */
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:14px;color:rgba(255,255,255,.8);margin-bottom:20px}
.breadcrumb a{color:rgba(255,255,255,.75);transition:var(--transition)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb span{opacity:.5}

/* article banner */
.article-banner{position:relative;padding:80px 0 90px;background:var(--primary-dark) url('/assets/images/backpic/back-1.png') center/cover no-repeat}
.article-banner::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(15,39,64,.92) 0%,rgba(26,58,92,.82) 55%,rgba(45,125,210,.7) 100%)}
.article-banner .container{position:relative;z-index:2}
.article-banner-inner{max-width:900px}
.article-banner h1{font-size:2.4rem;font-weight:800;line-height:1.4;color:#fff;margin-bottom:16px;letter-spacing:.5px}
.article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:20px;font-size:14px;color:rgba(255,255,255,.75)}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta i{color:var(--accent)}

/* article section */
.article-section{padding:60px 0 30px}
.article-body{background:#fff;border-radius:var(--radius-lg);padding:52px 56px;box-shadow:var(--shadow-lg);border:1px solid rgba(226,232,240,.6)}
.article-body h1,.article-body h2,.article-body h3,.article-body h4{color:var(--primary);font-weight:800;margin:1.8em 0 .7em;line-height:1.5}
.article-body h2{font-size:1.6rem;border-left:4px solid var(--accent);padding-left:14px}
.article-body h3{font-size:1.25rem}
.article-body p{margin-bottom:1.6em;color:#334155;font-size:16.5px;line-height:1.85}
.article-body img{border-radius:var(--radius);box-shadow:var(--shadow-sm);margin:1.2em 0}
.article-body ul,.article-body ol{margin:1em 0 1.6em;padding-left:0}
.article-body ul li{position:relative;padding-left:24px;margin-bottom:10px;color:#334155}
.article-body ul li::before{content:'\f058';font-family:'Font Awesome 6 Free';font-weight:900;position:absolute;left:0;color:var(--primary-light);font-size:14px}
.article-body ol{counter-reset:custom-counter;padding-left:0}
.article-body ol li{position:relative;padding-left:34px;margin-bottom:10px;counter-increment:custom-counter;color:#334155}
.article-body ol li::before{content:counter(custom-counter);position:absolute;left:0;top:2px;width:24px;height:24px;background:var(--primary-light);color:#fff;border-radius:50%;font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center}
.article-body blockquote{border-left:4px solid var(--accent);background:#fff8f0;padding:16px 22px;border-radius:0 var(--radius) var(--radius) 0;margin:1.4em 0;font-style:italic;color:#6b7280}
.article-body table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:14px}
.article-body table th{background:var(--primary);color:#fff;padding:12px 16px;text-align:left;font-weight:600}
.article-body table td{border:1px solid var(--border);padding:10px 16px}
.article-body table tr:nth-child(even){background:#f8fafc}
.article-body a{color:var(--primary-light);font-weight:600;border-bottom:1px solid rgba(45,125,210,.3)}
.article-body a:hover{border-bottom-color:var(--primary-light)}
.article-body code{background:#eef2f7;padding:2px 8px;border-radius:6px;font-size:.9em;color:var(--primary)}
.article-body pre{background:#0f2740;color:#e2e8f0;padding:20px;border-radius:12px;overflow-x:auto;margin:1.4em 0}
.article-body pre code{background:transparent;color:inherit;padding:0}

/* tags */
.article-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px;padding-top:24px;border-top:1px solid var(--border)}
.tag{display:inline-flex;align-items:center;gap:6px;padding:7px 16px;border-radius:30px;background:#f0f5fb;color:var(--primary-light);font-size:13px;font-weight:600;transition:var(--transition);border:1px solid #d5e4f2}
.tag i{font-size:12px}
.tag:hover{background:var(--primary-light);color:#fff;border-color:var(--primary-light)}

/* article not found */
.article-not-found{background:#fff;border-radius:var(--radius-lg);padding:70px 40px;text-align:center;box-shadow:var(--shadow-lg);border:1px solid var(--border)}
.article-not-found i{font-size:52px;color:coral;margin-bottom:20px;display:block}
.article-not-found h2{font-size:1.8rem;color:var(--primary);margin-bottom:12px}
.article-not-found p{color:var(--text-light);margin-bottom:28px;font-size:16px}

/* related section */
.related-section{padding:50px 0 30px}
.section-head{text-align:center;margin-bottom:42px}
.section-head h2{font-size:2rem;color:var(--primary);font-weight:800;margin-bottom:10px}
.section-head p{color:var(--text-light);font-size:15px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.related-card{display:flex;flex-direction:column;background:#fff;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);border:1px solid var(--border);transition:var(--transition)}
.related-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:rgba(45,125,210,.25)}
.card-img{position:relative;aspect-ratio:16/10;overflow:hidden;background:#e2e8f0}
.card-img::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,transparent 55%,rgba(15,39,64,.55));opacity:0;transition:var(--transition)}
.related-card:hover .card-img::after{opacity:1}
.card-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.related-card:hover .card-img img{transform:scale(1.05)}
.card-body{padding:22px;flex:1;display:flex;flex-direction:column;gap:8px}
.card-category{display:inline-flex;align-items:center;gap:4px;font-size:12px;font-weight:700;color:var(--accent);text-transform:uppercase;letter-spacing:.5px}
.card-body h3{font-size:1.05rem;color:var(--text);font-weight:700;line-height:1.5;transition:var(--transition);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.related-card:hover .card-body h3{color:var(--primary-light)}
.card-body p{font-size:13.5px;color:var(--text-light);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;flex:1}
.card-date{font-size:12.5px;color:#94a3b8;display:flex;align-items:center;gap:6px}

/* cta section */
.cta-section{padding:50px 0 60px}
.cta-box{position:relative;background:var(--primary-dark) url('/assets/images/backpic/back-2.png') center/cover no-repeat;border-radius:24px;padding:64px 48px;text-align:center;overflow:hidden;box-shadow:var(--shadow-lg)}
.cta-box::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(15,39,64,.93) 0%,rgba(26,58,92,.83) 55%,rgba(45,125,210,.72) 100%)}
.cta-box>*{position:relative;z-index:2}
.cta-box h2{font-size:1.9rem;color:#fff;font-weight:800;margin-bottom:14px}
.cta-box p{color:rgba(255,255,255,.82);font-size:16px;max-width:620px;margin:0 auto 30px}

/* footer */
.site-footer{background:var(--primary-dark);color:rgba(255,255,255,.8);padding:64px 0 30px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;margin-bottom:44px}
.footer-brand{font-size:1.35rem;font-weight:800;color:#fff;display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand i{color:var(--accent)}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);margin-bottom:20px;max-width:300px}
.footer-social{display:flex;gap:10px}
.footer-social a{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,.08);color:rgba(255,255,255,.7);font-size:15px;transition:var(--transition)}
.footer-social a:hover{background:var(--accent);color:#fff;transform:translateY(-3px)}
.footer-col-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.5px}
.footer-links li{margin-bottom:10px}
.footer-links a,.footer-links span{font-size:14px;color:rgba(255,255,255,.6);transition:var(--transition)}
.footer-links a:hover{color:var(--accent);padding-left:5px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:24px;text-align:center;font-size:13px;color:rgba(255,255,255,.4)}

/* responsive */
@media(max-width:1024px){
  .container{padding:0 20px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .article-banner{padding:70px 0 80px}
}
@media(max-width:768px){
  .main-nav{display:none}
  .header-cta{display:none}
  .header-inner{height:60px}
  .page-spacer{height:60px}
  .mobile-tab-bar{display:flex}
  .article-banner{padding:50px 0 60px}
  .article-banner h1{font-size:1.7rem}
  .article-body{padding:32px 24px;border-radius:16px}
  .article-body p{font-size:15.5px}
  .related-grid{grid-template-columns:1fr}
  .cta-box{padding:44px 24px}
  .cta-box h2{font-size:1.5rem}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .article-section{padding:36px 0 20px}
  .related-section{padding:36px 0 20px}
  .cta-section{padding:36px 0 40px}
  .breadcrumb{font-size:12.5px}
  .article-meta{flex-direction:column;gap:8px;align-items:flex-start}
  .mobile-tab-bar .tab-item{font-size:10px}
  .mobile-tab-bar .tab-item i{font-size:17px}
}
@media(max-width:520px){
  .container{padding:0 16px}
  .brand{font-size:1.1rem}
  .brand i{font-size:1.2rem}
  .article-banner h1{font-size:1.45rem}
  .article-body{padding:24px 18px}
  .article-body p{font-size:15px}
  .section-head h2{font-size:1.6rem}
  .cta-box h2{font-size:1.3rem}
  .cta-box p{font-size:14px}
  .footer-social a{width:34px;height:34px}
  .article-not-found{padding:48px 20px}
}

/* roulang page: category1 */
:root {
      --primary: #F5A623;
      --primary-dark: #D98E0F;
      --accent: #E74C3C;
      --bg-light: #F8F7F4;
      --bg-dark: #1A2332;
      --bg-deep: #141B27;
      --text: #212832;
      --text-muted: #7A8699;
      --border: #E6E8EC;
      --radius: 14px;
      --radius-lg: 20px;
      --shadow: 0 4px 16px rgba(26, 35, 50, 0.08);
      --shadow-lg: 0 12px 36px rgba(26, 35, 50, 0.14);
      --transition: all .3s ease;
      --container-width: 1200px;
      --space-section: 5.5rem;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
      background: #FFFFFF;
      color: var(--text);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }

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

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

    ul,
    ol {
      list-style: none;
    }

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

    .container {
      width: 100%;
      max-width: var(--container-width);
      margin: 0 auto;
      padding: 0 1.5rem;
      position: relative;
    }

    .row {
      max-width: none;
      margin-left: -12px;
      margin-right: -12px;
    }

    .large-1,
    .large-2,
    .large-3,
    .large-4,
    .large-5,
    .large-6,
    .large-7,
    .large-8,
    .large-9,
    .large-10,
    .large-11,
    .large-12,
    .medium-1,
    .medium-2,
    .medium-3,
    .medium-4,
    .medium-5,
    .medium-6,
    .medium-7,
    .medium-8,
    .medium-9,
    .medium-10,
    .medium-11,
    .medium-12,
    .small-1,
    .small-2,
    .small-3,
    .small-4,
    .small-5,
    .small-6,
    .small-7,
    .small-8,
    .small-9,
    .small-10,
    .small-11,
    .small-12 {
      padding-left: 12px;
      padding-right: 12px;
    }

    .section {
      padding: var(--space-section) 0;
    }

    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
      background: rgba(245, 166, 35, 0.12);
      color: var(--primary-dark);
      font-size: 0.82rem;
      font-weight: 700;
      letter-spacing: 0.06em;
      padding: 0.35rem 1rem;
      border-radius: 999px;
      margin-bottom: 1rem;
      border: 1px solid rgba(245, 166, 35, 0.25);
    }

    .section-head {
      text-align: center;
      max-width: 720px;
      margin: 0 auto 3rem;
    }

    .section-head h2 {
      font-size: 2.2rem;
      font-weight: 800;
      line-height: 1.3;
      color: var(--text);
      margin-bottom: 0.8rem;
      letter-spacing: -0.01em;
    }

    .section-head p {
      color: var(--text-muted);
      font-size: 1.05rem;
      line-height: 1.7;
    }

    .section-head.light h2 {
      color: #F5A623;
    }

    .section-head.light p {
      color: rgba(255, 255, 255, 0.7);
    }

    .section-tag.light {
      background: rgba(255, 255, 255, 0.15);
      color: #fff;
      border-color: rgba(255, 255, 255, 0.3);
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.5rem;
      border: 2px solid transparent;
      border-radius: 999px;
      padding: 0.75rem 1.6rem;
      font-size: 0.95rem;
      font-weight: 700;
      line-height: 1.2;
      cursor: pointer;
      transition: var(--transition);
      text-decoration: none;
      white-space: nowrap;
      outline: none;
    }

    .btn-primary {
      background: var(--primary);
      color: #1A2332;
      box-shadow: 0 6px 20px rgba(245, 166, 35, 0.35);
    }

    .btn-primary:hover {
      background: var(--primary-dark);
      color: #fff;
      transform: translateY(-2px);
      box-shadow: 0 10px 28px rgba(245, 166, 35, 0.45);
    }

    .btn-outline {
      background: transparent;
      border-color: rgba(255, 255, 255, 0.6);
      color: #fff;
    }

    .btn-outline:hover {
      background: rgba(255, 255, 255, 0.15);
      border-color: #fff;
      transform: translateY(-2px);
    }

    .btn-light {
      background: #fff;
      color: var(--bg-dark);
      box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
    }

    .btn-light:hover {
      background: var(--primary);
      color: var(--bg-dark);
      transform: translateY(-2px);
    }

    .btn-sm {
      padding: 0.45rem 1.1rem;
      font-size: 0.85rem;
    }

    .btn:active {
      transform: translateY(0) scale(0.98);
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border);
      transition: var(--transition);
    }

    .site-header:hover,
    .site-header:focus-within {
      background: #fff;
      box-shadow: 0 4px 24px rgba(26, 35, 50, 0.06);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 1.5rem;
      height: 76px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 0.6rem;
      font-size: 1.35rem;
      font-weight: 900;
      color: var(--text);
      letter-spacing: -0.02em;
      text-decoration: none;
    }

    .brand i {
      color: var(--primary);
      font-size: 1.5rem;
      background: rgba(245, 166, 35, 0.15);
      width: 44px;
      height: 44px;
      border-radius: 12px;
      display: flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 4px 12px rgba(245, 166, 35, 0.25);
    }

    .brand:hover i {
      transform: rotate(20deg);
    }

    .main-nav {
      display: flex;
      align-items: center;
      gap: 0.4rem;
    }

    .nav-link {
      position: relative;
      display: inline-flex;
      align-items: center;
      gap: 0.35rem;
      padding: 0.55rem 1.1rem;
      border-radius: 999px;
      font-weight: 600;
      font-size: 0.95rem;
      color: var(--text-muted);
      text-decoration: none;
      transition: var(--transition);
    }

    .nav-link:hover {
      color: var(--text);
      background: rgba(245, 166, 35, 0.08);
    }

    .nav-link.active {
      color: var(--primary-dark);
      background: rgba(245, 166, 35, 0.12);
      font-weight: 700;
    }

    .nav-link.active::after {
      content: '';
      position: absolute;
      left: 50%;
      bottom: 0;
      transform: translateX(-50%);
      width: 20px;
      height: 3px;
      background: var(--primary);
      border-radius: 999px;
    }

    .header-cta .btn {
      margin-left: 0.5rem;
    }

    .page-hero {
      position: relative;
      background-image: url('/assets/images/backpic/back-1.png');
      background-size: cover;
      background-position: center;
      padding: 6.5rem 0 5.5rem;
      color: #fff;
      text-align: center;
      isolation: isolate;
    }

    .page-hero::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(20, 27, 39, 0.92) 0%, rgba(26, 35, 50, 0.78) 50%, rgba(245, 166, 35, 0.30) 100%);
      z-index: -1;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 0.5rem;
      background: rgba(255, 255, 255, 0.15);
      border: 1px solid rgba(255, 255, 255, 0.3);
      color: #fff;
      font-size: 0.85rem;
      font-weight: 700;
      padding: 0.4rem 1.2rem;
      border-radius: 999px;
      backdrop-filter: blur(6px);
      margin-bottom: 1.5rem;
    }

    .hero-badge i {
      color: var(--primary);
    }

    .page-hero h1 {
      font-size: 3.1rem;
      font-weight: 900;
      line-height: 1.25;
      letter-spacing: -0.02em;
      margin-bottom: 1rem;
    }

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

    .page-hero p {
      max-width: 640px;
      margin: 0 auto 2rem;
      font-size: 1.1rem;
      color: rgba(255, 255, 255, 0.85);
      line-height: 1.75;
    }

    .hero-actions {
      display: flex;
      justify-content: center;
      gap: 1rem;
      flex-wrap: wrap;
    }

    .hero-bottom-meta {
      display: flex;
      justify-content: center;
      gap: 2rem;
      flex-wrap: wrap;
      margin-top: 3rem;
      font-size: 0.9rem;
      color: rgba(255, 255, 255, 0.75);
    }

    .hero-bottom-meta span {
      display: inline-flex;
      align-items: center;
      gap: 0.4rem;
    }

    .hero-bottom-meta i {
      color: var(--primary);
    }

    .feature-section {
      background: var(--bg-light);
    }

    .feature-card {
      background: #fff;
      border-radius: var(--radius);
      padding: 2rem 1.5rem;
      text-align: center;
      box-shadow: var(--shadow);
      border: 1px solid var(--border);
      height: 100%;
      transition: var(--transition);
    }

    .feature-card:hover {
      transform: translateY(-8px);
      box-shadow: var(--shadow-lg);
      border-color: rgba(245, 166, 35, 0.4);
    }

    .feature-icon {
      width: 64px;
      height: 64px;
      border-radius: 18px;
      background: linear-gradient(135deg, #F5A623 0%, #F7C668 100%);
      color: #1A2332;
      font-size: 1.5rem;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 1.2rem;
      box-shadow: 0 6px 16px rgba(245, 166, 35, 0.35);
    }

    .feature-card h3 {
      font-size: 1.1rem;
      font-weight: 800;
      margin-bottom: 0.6rem;
    }

    .feature-card p {
      color: var(--text-muted);
      font-size: 0.92rem;
      line-height: 1.65;
    }

    .feature-column {
      margin-bottom: 1.5rem;
    }

    .latest-section {
      background: #fff;
    }

    .feature-article-card {
      display: block;
      background: #fff;
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow);
      border: 1px solid var(--border);
      transition: var(--transition);
      height: 100%;
    }

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

    .article-thumb {
      position: relative;
      overflow: hidden;
    }

    .article-thumb img {
      width: 100%;
      height: 230px;
      object-fit: cover;
      transition: transform 0.5s ease;
    }

    .feature-article-card:hover .article-thumb img {
      transform: scale(1.05);
    }

    .article-thumb .tag {
      position: absolute;
      top: 1rem;
      left: 1rem;
      background: var(--primary);
      color: #1A2332;
      font-size: 0.78rem;
      font-weight: 800;
      padding: 0.25rem 0.8rem;
      border-radius: 999px;
      box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    }

    .article-body {
      padding: 1.5rem;
    }

    .article-body h3 {
      font-size: 1.25rem;
      font-weight: 800;
      margin-bottom: 0.5rem;
      line-height: 1.45;
    }

    .article-body p {
      color: var(--text-muted);
      font-size: 0.92rem;
      line-height: 1.65;
      margin-bottom: 1rem;
    }

    .meta {
      display: flex;
      gap: 1rem;
      font-size: 0.82rem;
      color: var(--text-muted);
    }

    .meta span {
      display: inline-flex;
      align-items: center;
      gap: 0.35rem;
    }

    .article-list {
      display: flex;
      flex-direction: column;
      gap: 1rem;
      height: 100%;
    }

    .article-row {
      display: flex;
      align-items: center;
      gap: 1rem;
      background: #fff;
      border-radius: var(--radius);
      border: 1px solid var(--border);
      padding: 1rem;
      transition: var(--transition);
      box-shadow: 0 2px 8px rgba(26, 35, 50, 0.04);
    }

    .article-row:hover {
      box-shadow: var(--shadow);
      border-color: rgba(245, 166, 35, 0.4);
      transform: translateY(-2px);
    }

    .row-thumb {
      flex-shrink: 0;
      width: 130px;
      height: 85px;
      border-radius: 10px;
      overflow: hidden;
    }

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

    .row-content h4 {
      font-size: 0.98rem;
      font-weight: 700;
      line-height: 1.4;
      margin-bottom: 0.3rem;
    }

    .row-content p {
      font-size: 0.82rem;
      color: var(--text-muted);
      line-height: 1.5;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .ranking-section {
      background: var(--bg-light);
    }

    .ranking-card {
      background: #fff;
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow);
      border: 1px solid var(--border);
      padding: 2rem;
      max-width: 900px;
      margin: 0 auto;
    }

    .ranking-item {
      display: flex;
      align-items: center;
      gap: 1.2rem;
      padding: 1.1rem 0.5rem;
      border-bottom: 1px dashed var(--border);
      transition: var(--transition);
    }

    .ranking-item:last-child {
      border-bottom: none;
    }

    .ranking-item:hover {
      background: rgba(245, 166, 35, 0.05);
      border-radius: 12px;
    }

    .ranking-num {
      font-size: 1.5rem;
      font-weight: 900;
      color: var(--border);
      min-width: 48px;
      text-align: center;
      transition: var(--transition);
    }

    .ranking-item:hover .ranking-num {
      color: var(--primary);
    }

    .ranking-item:nth-child(1) .ranking-num {
      color: var(--primary);
    }

    .ranking-item:nth-child(2) .ranking-num {
      color: #D9A441;
    }

    .ranking-item:nth-child(3) .ranking-num {
      color: #C0A16B;
    }

    .ranking-info {
      flex: 1;
    }

    .ranking-info h3 {
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 0.2rem;
    }

    .ranking-info h3 a:hover {
      color: var(--primary-dark);
    }

    .ranking-info .meta {
      font-size: 0.8rem;
    }

    .ranking-hot {
      background: rgba(231, 76, 60, 0.1);
      color: var(--accent);
      width: 34px;
      height: 34px;
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.9rem;
      font-weight: 800;
      flex-shrink: 0;
    }

    .process-section {
      background-image: url('/assets/images/backpic/back-2.png');
      background-size: cover;
      background-position: center;
      position: relative;
      color: #fff;
      isolation: isolate;
    }

    .process-section::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(20, 27, 39, 0.95) 0%, rgba(26, 35, 50, 0.85) 100%);
      z-index: -1;
    }

    .process-steps {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.8rem;
      margin-top: 1rem;
    }

    .process-step {
      background: rgba(255, 255, 255, 0.06);
      backdrop-filter: blur(8px);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: var(--radius-lg);
      padding: 2.2rem 1.8rem;
      text-align: center;
      transition: var(--transition);
      position: relative;
    }

    .process-step:hover {
      background: rgba(255, 255, 255, 0.12);
      transform: translateY(-6px);
      box-shadow: 0 16px 32px rgba(0, 0, 0, 0.3);
    }

    .step-num {
      display: block;
      font-size: 2rem;
      font-weight: 900;
      color: var(--primary);
      margin-bottom: 0.8rem;
      background: rgba(245, 166, 35, 0.18);
      width: 56px;
      height: 56px;
      border-radius: 16px;
      display: flex;
      align-items: center;
      justify-content: center;
      margin-left: auto;
      margin-right: auto;
      font-size: 1.4rem;
    }

    .process-step h3 {
      font-size: 1.15rem;
      font-weight: 800;
      margin-bottom: 0.5rem;
    }

    .process-step p {
      font-size: 0.9rem;
      color: rgba(255, 255, 255, 0.75);
      line-height: 1.65;
    }

    .faq-section {
      background: #fff;
    }

    .faq-list {
      max-width: 860px;
      margin: 0 auto;
    }

    .faq-item {
      background: var(--bg-light);
      border-radius: var(--radius);
      border: 1px solid var(--border);
      margin-bottom: 1rem;
      overflow: hidden;
      transition: var(--transition);
    }

    .faq-item:hover {
      border-color: rgba(245, 166, 35, 0.4);
      box-shadow: var(--shadow);
    }

    .faq-item summary {
      display: flex;
      align-items: center;
      gap: 0.8rem;
      padding: 1.2rem 1.5rem;
      cursor: pointer;
      font-size: 1rem;
      font-weight: 700;
      color: var(--text);
      list-style: none;
      outline: none;
      transition: var(--transition);
    }

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

    .faq-item summary i {
      color: var(--primary);
      font-size: 1.1rem;
    }

    .faq-item summary::after {
      content: '\f078';
      font-family: 'Font Awesome 6 Free';
      font-weight: 900;
      margin-left: auto;
      font-size: 0.8rem;
      color: var(--text-muted);
      transition: var(--transition);
    }

    .faq-item[open] summary::after {
      transform: rotate(180deg);
      color: var(--primary);
    }

    .faq-answer {
      padding: 0 1.5rem 1.3rem 3.4rem;
      color: var(--text-muted);
      font-size: 0.95rem;
      line-height: 1.7;
      border-top: 1px solid var(--border);
      margin-top: 0.2rem;
      padding-top: 1rem;
    }

    .cta-section {
      padding: 0 0 var(--space-section);
      background: var(--bg-light);
    }

    .cta-box {
      position: relative;
      background-image: url('/assets/images/backpic/back-3.png');
      background-size: cover;
      background-position: center;
      border-radius: var(--radius-lg);
      padding: 3.5rem 2.5rem;
      text-align: center;
      color: #fff;
      overflow: hidden;
      box-shadow: var(--shadow-lg);
      isolation: isolate;
    }

    .cta-box::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(120deg, rgba(20, 27, 39, 0.93), rgba(26, 35, 50, 0.75));
      z-index: -1;
    }

    .cta-box h2 {
      font-size: 2rem;
      font-weight: 900;
      margin-bottom: 0.8rem;
    }

    .cta-box p {
      max-width: 520px;
      margin: 0 auto 1.8rem;
      color: rgba(255, 255, 255, 0.8);
      font-size: 1rem;
    }

    .cta-box .btn-light:hover {
      background: var(--primary);
      color: #1A2332;
    }

    .site-footer {
      background: var(--bg-dark);
      color: rgba(255, 255, 255, 0.7);
      padding: 4rem 0 1.5rem;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 2rem;
      margin-bottom: 2.5rem;
    }

    .footer-brand {
      display: flex;
      align-items: center;
      gap: 0.6rem;
      font-size: 1.25rem;
      font-weight: 900;
      color: #fff;
      margin-bottom: 0.8rem;
    }

    .footer-brand i {
      color: var(--primary);
    }

    .footer-desc {
      font-size: 0.88rem;
      line-height: 1.7;
      margin-bottom: 1.2rem;
      max-width: 320px;
    }

    .footer-social {
      display: flex;
      gap: 0.6rem;
    }

    .footer-social a {
      width: 38px;
      height: 38px;
      border-radius: 12px;
      background: rgba(255, 255, 255, 0.08);
      display: flex;
      align-items: center;
      justify-content: center;
      color: rgba(255, 255, 255, 0.7);
      font-size: 1rem;
      transition: var(--transition);
    }

    .footer-social a:hover {
      background: var(--primary);
      color: var(--bg-dark);
      transform: translateY(-3px);
    }

    .footer-col-title {
      color: #fff;
      font-weight: 800;
      font-size: 1rem;
      margin-bottom: 1rem;
    }

    .footer-links li {
      margin-bottom: 0.5rem;
    }

    .footer-links a,
    .footer-links span {
      color: rgba(255, 255, 255, 0.6);
      font-size: 0.88rem;
      transition: var(--transition);
    }

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

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.1);
      padding-top: 1.5rem;
      text-align: center;
      font-size: 0.85rem;
      color: rgba(255, 255, 255, 0.5);
    }

    .mobile-tabs {
      display: none;
      position: fixed;
      bottom: 0;
      left: 0;
      right: 0;
      z-index: 999;
      background: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(10px);
      border-top: 1px solid var(--border);
      box-shadow: 0 -4px 16px rgba(26, 35, 50, 0.08);
      padding: 0.4rem 0.5rem 0.6rem;
      border-radius: 20px 20px 0 0;
    }

    .tab-item {
      flex: 1;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 2px;
      font-size: 11px;
      color: var(--text-muted);
      text-decoration: none;
      padding: 0.4rem 0.2rem 0.2rem;
      border-radius: 12px;
      transition: var(--transition);
      font-weight: 600;
    }

    .tab-item i {
      font-size: 19px;
      margin-bottom: 2px;
    }

    .tab-item:hover,
    .tab-item.active {
      color: var(--primary-dark);
      background: rgba(245, 166, 35, 0.1);
    }

    .btn:focus-visible,
    .nav-link:focus-visible,
    .footer-social a:focus-visible,
    .tab-item:focus-visible {
      outline: 2px solid var(--primary);
      outline-offset: 2px;
    }

    @media (max-width: 1024px) {
      :root {
        --space-section: 4.5rem;
      }

      .page-hero {
        padding: 5rem 0 4rem;
      }

      .page-hero h1 {
        font-size: 2.5rem;
      }

      .process-steps {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.2rem;
      }

      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
      }
    }

    @media (max-width: 768px) {
      :root {
        --space-section: 3.5rem;
      }

      .site-header {
        top: 0;
      }

      .header-inner {
        height: 64px;
      }

      .main-nav {
        display: none;
      }

      .header-cta .btn {
        display: none;
      }

      .mobile-tabs {
        display: flex;
      }

      body {
        padding-bottom: 64px;
      }

      .page-hero {
        padding: 4rem 0 3rem;
      }

      .page-hero h1 {
        font-size: 1.9rem;
      }

      .page-hero p {
        font-size: 1rem;
      }

      .section-head h2 {
        font-size: 1.75rem;
      }

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

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
      }

      .cta-box {
        padding: 2.5rem 1.5rem;
      }
    }

    @media (max-width: 520px) {
      .container {
        padding: 0 1rem;
      }

      .row {
        margin-left: -8px;
        margin-right: -8px;
      }

      .large-1,
      .large-2,
      .large-3,
      .large-4,
      .large-5,
      .large-6,
      .large-7,
      .large-8,
      .large-9,
      .large-10,
      .large-11,
      .large-12,
      .medium-1,
      .medium-2,
      .medium-3,
      .medium-4,
      .medium-5,
      .medium-6,
      .medium-7,
      .medium-8,
      .medium-9,
      .medium-10,
      .medium-11,
      .medium-12,
      .small-1,
      .small-2,
      .small-3,
      .small-4,
      .small-5,
      .small-6,
      .small-7,
      .small-8,
      .small-9,
      .small-10,
      .small-11,
      .small-12 {
        padding-left: 8px;
        padding-right: 8px;
      }

      .page-hero h1 {
        font-size: 1.6rem;
      }

      .hero-actions {
        flex-direction: column;
        gap: 0.7rem;
      }

      .btn {
        width: 100%;
      }

      .hero-bottom-meta {
        gap: 1rem;
        font-size: 0.8rem;
      }

      .brand {
        font-size: 1.1rem;
      }

      .brand i {
        width: 36px;
        height: 36px;
        font-size: 1.1rem;
      }

      .featured-column {
        margin-bottom: 1rem;
      }

      .feature-article-card .article-thumb img {
        height: 190px;
      }

      .article-row {
        flex-direction: row;
        padding: 0.8rem;
      }

      .row-thumb {
        width: 90px;
        height: 70px;
      }

      .row-content h4 {
        font-size: 0.88rem;
      }

      .ranking-card {
        padding: 1.2rem;
      }

      .ranking-item {
        flex-wrap: wrap;
      }

      .faq-item summary {
        padding: 1rem;
        font-size: 0.92rem;
      }
    }