/* roulang page: index */
/* ===================== 设计变量 ===================== */
:root {
  --primary: #0a2540;
  --primary-2: #123a63;
  --primary-3: #1b4f8a;
  --accent: #c8a24a;
  --accent-2: #e0bd6b;
  --accent-3: #f0d699;
  --bg: #f6f8fc;
  --bg-alt: #eef1f8;
  --bg-dark: #0a2540;
  --card: #ffffff;
  --text: #14213d;
  --text-2: #4a5568;
  --text-3: #8a94a6;
  --border: #e3e8f0;
  --radius: 20px;
  --radius-sm: 14px;
  --radius-xs: 10px;
  --shadow: 0 12px 36px rgba(10, 37, 64, 0.08);
  --shadow-lg: 0 24px 60px rgba(10, 37, 64, 0.14);
  --container: 1220px;
  --transition: 0.3s ease;
}

/* ===================== Reset / Base ===================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; transition: color 0.25s; }
a:focus-visible, button:focus-visible {
  outline: 3px solid rgba(200, 162, 74, 0.5);
  outline-offset: 2px;
}
img { max-width: 100%; display: block; border: 0; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea { font-family: inherit; }

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

/* ===================== 顶部信息条 ===================== */
.topbar {
  background: var(--primary);
  color: rgba(255,255,255,0.88);
  font-size: 13px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 40px;
  gap: 16px;
}
.topbar-text i { color: var(--accent-2); margin-right: 6px; }
.topbar-links {
  display: flex;
  align-items: center;
  gap: 12px;
}
.topbar-links a { color: rgba(255,255,255,0.8); transition: color 0.25s; }
.topbar-links a:hover { color: var(--accent-2); }
.topbar-links span { color: rgba(255,255,255,0.3); }

/* ===================== 主导航 ===================== */
.header {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 12px rgba(10,37,64,0.05);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 24px;
}
.logo {
  font-size: 22px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}
.logo em {
  font-style: normal;
  color: var(--accent);
}
.logo i { font-size: 20px; color: var(--accent); }
.nav ul {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav ul li a {
  display: inline-block;
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-2);
  transition: all 0.25s;
}
.nav ul li a:hover { color: var(--primary); background: rgba(10,37,64,0.05); }
.nav ul li a.active {
  background: var(--primary);
  color: #fff;
  font-weight: 600;
}
.nav-cta {
  padding: 10px 22px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: var(--primary) !important;
  font-weight: 700;
  font-size: 14px;
  transition: all 0.25s;
  box-shadow: 0 4px 14px rgba(200,162,74,0.3);
}
.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(200,162,74,0.4);
}
.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(10,37,64,0.06);
  color: var(--primary);
  font-size: 20px;
  align-items: center;
  justify-content: center;
  transition: background 0.25s;
}
.menu-toggle:hover { background: rgba(10,37,64,0.1); }

/* ===================== Hero ===================== */
.hero {
  position: relative;
  min-height: 680px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--primary);
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transform: scale(1.05);
  animation: heroZoom 16s ease-out forwards;
}
@keyframes heroZoom {
  from { transform: scale(1.12); }
  to { transform: scale(1.05); }
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(4,16,32,0.92) 0%, rgba(8,28,52,0.78) 42%, rgba(10,37,64,0.45) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  padding: 100px 24px;
  max-width: 720px;
  color: #fff;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(200,162,74,0.18);
  border: 1px solid rgba(200,162,74,0.4);
  color: var(--accent-2);
  padding: 6px 16px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 24px;
}
.hero-badge i { font-size: 12px; }
.hero-content h1 {
  font-size: 58px;
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: 2px;
  background: linear-gradient(120deg, #ffffff 0%, var(--accent-3) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-content p {
  font-size: 18px;
  line-height: 1.7;
  color: rgba(255,255,255,0.85);
  max-width: 560px;
  margin-bottom: 34px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 48px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  transition: all 0.3s;
  border: 1px solid transparent;
  line-height: 1.2;
}
.btn i { font-size: 14px; }
.btn-light {
  background: #fff;
  color: var(--primary);
  box-shadow: 0 8px 24px rgba(0,0,0,0.15);
}
.btn-light:hover { background: var(--accent-3); transform: translateY(-2px); }
.btn-outline-light {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.6);
}
.btn-outline-light:hover { background: rgba(255,255,255,0.1); }
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-3));
  color: #fff;
  box-shadow: 0 6px 20px rgba(10,37,64,0.2);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(10,37,64,0.3); }
.hero-stats {
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
}
.stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.stat strong {
  font-size: 30px;
  font-weight: 800;
  color: var(--accent-2);
  line-height: 1;
}
.stat span { font-size: 13px; color: rgba(255,255,255,0.7); }

/* ===================== 信息条 ===================== */
.info-strip {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  padding: 0;
}
.info-strip-inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}
.info-item {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 20px 16px;
  border-right: 1px solid var(--border);
  text-align: center;
  transition: background 0.25s;
}
.info-item:last-child { border-right: none; }
.info-item i {
  font-size: 22px;
  color: var(--accent);
  background: rgba(200,162,74,0.1);
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.info-item span { font-size: 15px; font-weight: 600; color: var(--text); }

/* ===================== 板块通用 ===================== */
.section { padding: 88px 0; }
.section-alt { background: var(--bg-alt); }
.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 52px;
}
.section-tag {
  display: inline-block;
  background: rgba(200,162,74,0.12);
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  padding: 5px 16px;
  border-radius: 999px;
  margin-bottom: 16px;
  text-transform: uppercase;
}
.section-head h2 {
  font-size: 34px;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 14px;
  line-height: 1.25;
}
.section-head p { font-size: 16px; color: var(--text-2); line-height: 1.7; }

/* ===================== 核心说明 ===================== */
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 60px;
  align-items: center;
}
.about-media {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  aspect-ratio: 4 / 3;
}
.about-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s;
}
.about-media:hover img { transform: scale(1.03); }
.about-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10,37,64,0.3), transparent 40%);
}
.about-content h3 {
  font-size: 26px;
  font-weight: 800;
  margin-bottom: 16px;
  color: var(--text);
}
.about-content p {
  font-size: 15px;
  color: var(--text-2);
  margin-bottom: 18px;
  line-height: 1.8;
}
.about-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 28px;
}
.about-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 15px;
  color: var(--text-2);
}
.about-list li i { color: var(--accent); margin-top: 5px; font-size: 14px; }

/* ===================== 分类入口 ===================== */
.category-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.category-card {
  background: var(--card);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: all 0.35s;
  display: block;
  position: relative;
}
.category-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.category-card-media {
  position: relative;
  height: 210px;
  overflow: hidden;
}
.category-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s;
}
.category-card:hover .category-card-media img { transform: scale(1.06); }
.category-card-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10,37,64,0.55), transparent 55%);
}
.category-card-body {
  padding: 26px;
}
.category-card-body h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
}
.category-card-body p {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.65;
  margin-bottom: 16px;
}
.category-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.category-link i { font-size: 12px; }

/* ===================== 功能特色 ===================== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 30px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  opacity: 0;
  transition: opacity 0.3s;
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.feature-card:hover::before { opacity: 1; }
.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 20px;
  box-shadow: 0 6px 18px rgba(200,162,74,0.3);
}
.feature-card h4 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}
.feature-card p { font-size: 14px; color: var(--text-2); line-height: 1.7; }

/* ===================== 最新信息列表 ===================== */
.news-wrapper {
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.news-list { display: flex; flex-direction: column; }
.news-item {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 20px 28px;
  border-bottom: 1px solid var(--border);
  transition: background 0.2s, padding-left 0.2s;
}
.news-item:last-child { border-bottom: none; }
.news-item:hover { background: rgba(10,37,64,0.02); padding-left: 34px; }
.news-tag {
  background: rgba(200,162,74,0.12);
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 999px;
  white-space: nowrap;
  flex-shrink: 0;
}
.news-title {
  flex: 1;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.news-item:hover .news-title { color: var(--primary); }
.news-date {
  color: var(--text-3);
  font-size: 13px;
  white-space: nowrap;
  flex-shrink: 0;
}
.news-empty {
  padding: 60px 28px;
  text-align: center;
  color: var(--text-3);
  font-size: 15px;
}

/* ===================== 流程 ===================== */
.process-section {
  background: linear-gradient(120deg, var(--primary) 0%, var(--primary-2) 100%);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.process-section::before {
  content: "";
  position: absolute;
  right: -80px; top: -80px;
  width: 320px; height: 320px;
  border-radius: 50%;
  background: rgba(200,162,74,0.08);
}
.process-section::after {
  content: "";
  position: absolute;
  left: -60px; bottom: -60px;
  width: 220px; height: 220px;
  border-radius: 50%;
  background: rgba(255,255,255,0.03);
}
.process-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.process-card {
  text-align: center;
  padding: 36px 24px;
  border-radius: var(--radius);
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  transition: all 0.3s;
}
.process-card:hover { background: rgba(255,255,255,0.12); transform: translateY(-4px); }
.process-num {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: var(--primary);
  font-size: 20px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 18px;
  box-shadow: 0 8px 24px rgba(200,162,74,0.35);
}
.process-card h4 { font-size: 18px; margin-bottom: 8px; }
.process-card p { font-size: 14px; color: rgba(255,255,255,0.75); line-height: 1.6; }

/* ===================== 用户反馈 ===================== */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.testimonial-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 30px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 18px;
  transition: all 0.3s;
}
.testimonial-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.testimonial-stars { color: var(--accent); font-size: 14px; letter-spacing: 2px; }
.testimonial-text {
  font-size: 15px;
  color: var(--text-2);
  line-height: 1.8;
  flex: 1;
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}
.testimonial-avatar {
  width: 42px; height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-3), var(--primary));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 16px;
}
.testimonial-author strong { display: block; font-size: 15px; }
.testimonial-author span { font-size: 13px; color: var(--text-3); }

/* ===================== FAQ ===================== */
.faq-wrap {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.faq-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: box-shadow 0.3s;
}
.faq-item:hover { box-shadow: var(--shadow); }
.faq-item summary {
  cursor: pointer;
  list-style: none;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  transition: color 0.25s;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: var(--primary); }
.faq-item summary::after {
  content: "\f078";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  font-size: 13px;
  color: var(--accent);
  transition: transform 0.3s;
  flex-shrink: 0;
}
.faq-item[open] summary::after { transform: rotate(180deg); }
.faq-answer {
  padding: 0 24px 20px;
  font-size: 15px;
  color: var(--text-2);
  line-height: 1.75;
}

/* ===================== CTA ===================== */
.cta-section {
  background: linear-gradient(120deg, var(--accent) 0%, var(--accent-2) 100%);
  padding: 70px 0;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  right: -40px; top: -40px;
  width: 200px; height: 200px;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
}
.cta-section::after {
  content: "";
  position: absolute;
  left: -30px; bottom: -30px;
  width: 140px; height: 140px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
}
.cta-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  color: var(--primary);
}
.cta-inner h2 {
  font-size: 36px;
  font-weight: 900;
  margin-bottom: 16px;
}
.cta-inner p {
  font-size: 17px;
  margin-bottom: 32px;
  color: rgba(10,37,64,0.75);
  max-width: 620px;
  margin-left: auto;
  margin-right: auto;
}
.btn-cta {
  background: var(--primary);
  color: #fff;
  padding: 16px 42px;
  border-radius: 999px;
  font-size: 16px;
  font-weight: 700;
  box-shadow: 0 8px 28px rgba(10,37,64,0.25);
  transition: all 0.3s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.btn-cta:hover { transform: translateY(-3px); box-shadow: 0 14px 36px rgba(10,37,64,0.35); }

/* ===================== 页脚 ===================== */
.footer {
  background: var(--bg-dark);
  color: rgba(255,255,255,0.75);
  padding: 70px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-brand .logo {
  color: #fff;
  font-size: 24px;
  margin-bottom: 16px;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.75;
  color: rgba(255,255,255,0.6);
  max-width: 320px;
}
.footer-col h5 {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 20px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 12px; }
.footer-col ul a {
  color: rgba(255,255,255,0.6);
  font-size: 14px;
  transition: color 0.25s;
}
.footer-col ul a:hover { color: var(--accent-2); }
.footer-bottom {
  padding: 22px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 13px;
  color: rgba(255,255,255,0.45);
  flex-wrap: wrap;
}
.footer-bottom .domain { color: rgba(255,255,255,0.55); }

/* ===================== 响应式 ===================== */
@media (max-width: 1024px) {
  .hero-content h1 { font-size: 46px; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .category-grid { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonials-grid { grid-template-columns: repeat(2, 1fr); }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 768px) {
  .topbar-links { display: none; }
  .nav-inner { min-height: 64px; }
  .nav {
    position: fixed;
    top: 0; right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--card);
    z-index: 200;
    padding: 80px 28px 28px;
    transition: right 0.35s ease;
    box-shadow: -20px 0 50px rgba(10,37,64,0.15);
  }
  .nav.open { right: 0; }
  .nav ul { flex-direction: column; align-items: flex-start; gap: 4px; }
  .nav ul li a { display: block; width: 100%; font-size: 17px; padding: 14px 16px; }
  .nav ul li a.active { background: var(--primary); color: #fff; border-radius: 12px; }
  .nav-cta { display: none; }
  .menu-toggle { display: flex; }
  .hero { min-height: 580px; }
  .hero-content h1 { font-size: 38px; }
  .hero-content p { font-size: 16px; }
  .hero-stats { gap: 28px; }
  .stat strong { font-size: 24px; }
  .section { padding: 60px 0; }
  .section-head h2 { font-size: 28px; }
  .info-strip-inner { grid-template-columns: repeat(2, 1fr); }
  .info-item { border-bottom: 1px solid var(--border); }
  .category-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .news-item { flex-wrap: wrap; gap: 10px; }
  .news-title { width: 100%; white-space: normal; }
}
@media (max-width: 520px) {
  .container { padding: 0 18px; }
  .hero-content h1 { font-size: 30px; }
  .hero-actions { flex-direction: column; }
  .btn { width: 100%; }
  .process-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* roulang page: category1 */
:root {
  --primary: #0c1e3f;
  --primary-light: #17305e;
  --primary-deep: #081530;
  --accent: #d9a94f;
  --accent-light: #f0cd8a;
  --accent-dark: #b98a36;
  --bg: #f4f6fb;
  --white: #ffffff;
  --text: #17233b;
  --text-weak: #66738c;
  --border: #e3e9f2;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --shadow-sm: 0 4px 14px rgba(12, 30, 63, .06);
  --shadow-md: 0 10px 30px rgba(12, 30, 63, .09);
  --shadow-lg: 0 20px 50px rgba(12, 30, 63, .14);
  --sp: 16px;
  --sp-lg: 32px;
  --sp-xl: 64px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

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

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

ul {
  list-style: none;
}

.container {
  width: min(1200px, 92%);
  margin: 0 auto;
}

/* ========== 顶部信息条 ========== */
.topbar {
  background: var(--primary-deep);
  color: rgba(255, 255, 255, .75);
  font-size: 13px;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, .05);
}

.topbar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.topbar-inner i {
  color: var(--accent);
  margin-right: 6px;
}

.topbar-domain {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* ========== 导航 ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--white);
  box-shadow: 0 2px 18px rgba(12, 30, 63, .08);
}

.nav-wrap {
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 70px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 24px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: .5px;
  white-space: nowrap;
}

.logo i {
  color: var(--accent);
  font-size: 26px;
  background: linear-gradient(135deg, rgba(217, 169, 79, .18), rgba(217, 169, 79, .06));
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.logo em {
  font-style: normal;
  color: var(--accent);
}

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

.nav a {
  display: inline-block;
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  transition: background .25s ease, color .25s ease, transform .2s ease;
}

.nav a:hover {
  background: rgba(217, 169, 79, .12);
  color: var(--primary);
  transform: translateY(-1px);
}

.nav a.active {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 6px 18px rgba(12, 30, 63, .24);
}

.nav a:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--primary);
  color: #fff;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

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

/* ========== 通用板块 ========== */
.section {
  padding: var(--sp-xl) 0;
}

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto var(--sp-lg);
  padding: 0 16px;
}

.section-tag {
  display: inline-block;
  background: rgba(217, 169, 79, .12);
  color: var(--accent-dark);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 14px;
  text-transform: uppercase;
}

.section-head h2 {
  font-size: clamp(30px, 4vw, 42px);
  color: var(--primary);
  line-height: 1.25;
  letter-spacing: -.5px;
  margin-bottom: 12px;
}

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

/* ========== 内页 Hero ========== */
.page-hero {
  position: relative;
  background-size: cover;
  background-position: center;
  padding: 120px 0 100px;
  text-align: center;
  overflow: hidden;
}

.page-hero .hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8, 21, 48, .78), rgba(8, 21, 48, .55) 60%, rgba(8, 21, 48, .82));
}

.page-hero .hero-content {
  position: relative;
  z-index: 2;
  color: #fff;
}

.hero-tag {
  display: inline-block;
  background: rgba(217, 169, 79, .2);
  border: 1px solid rgba(217, 169, 79, .4);
  color: var(--accent-light);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 3px;
  padding: 8px 20px;
  border-radius: 999px;
  margin-bottom: 22px;
  backdrop-filter: blur(6px);
}

.page-hero h1 {
  font-size: clamp(38px, 6vw, 64px);
  font-weight: 900;
  letter-spacing: 2px;
  line-height: 1.15;
  margin-bottom: 16px;
  text-shadow: 0 4px 30px rgba(0, 0, 0, .35);
}

.page-hero p {
  font-size: 17px;
  max-width: 620px;
  margin: 0 auto 32px;
  color: rgba(255, 255, 255, .85);
  line-height: 1.8;
}

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

/* ========== 按钮 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 700;
  transition: all .28s ease;
  border: 2px solid transparent;
  cursor: pointer;
}

.btn:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

.btn-primary {
  background: var(--accent);
  color: var(--primary);
  box-shadow: 0 8px 24px rgba(217, 169, 79, .35);
}

.btn-primary:hover {
  background: var(--accent-light);
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(217, 169, 79, .45);
}

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

.btn-ghost {
  background: transparent;
  border-color: rgba(255, 255, 255, .5);
  color: #fff;
  backdrop-filter: blur(6px);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, .14);
  border-color: #fff;
  transform: translateY(-3px);
}

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

.btn-outline:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

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

.btn-light:hover {
  background: var(--accent-light);
  transform: translateY(-3px);
  box-shadow: 0 10px 26px rgba(0, 0, 0, .2);
}

/* ========== 概览区 ========== */
.section-guide-intro {
  background: var(--white);
}

.intro-grid {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 56px;
  align-items: center;
}

.intro-text .section-tag {
  margin-bottom: 12px;
}

.intro-text h2 {
  font-size: clamp(28px, 3.4vw, 38px);
  color: var(--primary);
  line-height: 1.3;
  margin-bottom: 18px;
}

.intro-text p {
  color: var(--text-weak);
  font-size: 16px;
  margin-bottom: 22px;
}

.check-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 8px 0;
  font-size: 15px;
  color: var(--text);
}

.check-list i {
  color: var(--accent);
  font-size: 18px;
  margin-top: 3px;
}

.intro-text .btn {
  margin-top: 18px;
}

.intro-media {
  position: relative;
}

.intro-media img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  height: 400px;
  object-fit: cover;
}

.media-badge {
  position: absolute;
  left: -20px;
  bottom: 28px;
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 14px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  font-weight: 700;
  color: var(--primary);
}

.media-badge i {
  color: var(--accent);
  font-size: 20px;
}

/* ========== 分类卡片 ========== */
.guide-cards {
  background: var(--bg);
}

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

.card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform .3s ease, box-shadow .3s ease;
  border: 1px solid rgba(227, 233, 242, .6);
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.card-img {
  height: 180px;
  overflow: hidden;
}

.card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .45s ease;
}

.card:hover .card-img img {
  transform: scale(1.06);
}

.card-body {
  padding: 22px;
}

.card-body h3 {
  font-size: 19px;
  color: var(--primary);
  margin-bottom: 10px;
  line-height: 1.4;
}

.card-body p {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.7;
  margin-bottom: 16px;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 700;
  color: var(--accent-dark);
  transition: gap .25s ease;
}

.card-link:hover {
  gap: 12px;
}

.card-link i {
  font-size: 13px;
}

/* ========== 流程 ========== */
.section-steps {
  background: var(--white);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  counter-reset: step;
}

.step-item {
  position: relative;
  background: var(--bg);
  border-radius: var(--radius-lg);
  padding: 38px 26px 30px;
  text-align: center;
  border: 1px solid var(--border);
  transition: transform .3s ease, box-shadow .3s ease;
}

.step-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.step-item::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary);
  color: var(--accent-light);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 1px;
  padding: 5px 16px;
  border-radius: 999px;
  box-shadow: 0 6px 16px rgba(12, 30, 63, .22);
}

.step-item .step-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 18px;
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(217, 169, 79, .18), rgba(217, 169, 79, .08));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  color: var(--accent-dark);
}

.step-item h3 {
  font-size: 18px;
  color: var(--primary);
  margin-bottom: 10px;
}

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

/* ========== 数据条 ========== */
.stats-section {
  position: relative;
  background-size: cover;
  background-position: center;
  padding: 80px 0;
  overflow: hidden;
}

.stats-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(8, 21, 48, .92), rgba(12, 30, 63, .78));
}

.stat-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  text-align: center;
}

.stat-item strong {
  display: block;
  font-size: 46px;
  font-weight: 900;
  color: var(--accent);
  letter-spacing: 1px;
  line-height: 1.1;
  margin-bottom: 8px;
}

.stat-item span {
  font-size: 15px;
  color: rgba(255, 255, 255, .8);
  letter-spacing: 1px;
}

/* ========== 横向图片滑区 ========== */
.section-media-scroll {
  background: var(--bg);
  overflow: hidden;
}

.media-scroll {
  display: grid;
  grid-template-columns: repeat(5, minmax(230px, 1fr));
  gap: 20px;
  overflow-x: auto;
  padding: 8px 4px 20px;
  scrollbar-width: thin;
  scrollbar-color: var(--accent) transparent;
}

.media-scroll::-webkit-scrollbar {
  height: 6px;
}

.media-scroll::-webkit-scrollbar-thumb {
  background: var(--accent);
  border-radius: 999px;
}

.media-scroll::-webkit-scrollbar-track {
  background: rgba(227, 233, 242, .5);
  border-radius: 999px;
}

.media-card {
  background: var(--white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform .3s ease, box-shadow .3s ease;
  min-width: 230px;
}

.media-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.media-card img {
  height: 130px;
  width: 100%;
  object-fit: cover;
}

.media-card .media-body {
  padding: 16px 18px;
}

.media-card .media-body h3 {
  font-size: 16px;
  color: var(--primary);
  margin-bottom: 6px;
}

.media-card .media-body p {
  font-size: 13px;
  color: var(--text-weak);
  line-height: 1.6;
}

/* ========== 反馈摘录 ========== */
.section-quotes {
  background: var(--white);
}

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

.quote-card {
  background: var(--bg);
  border-radius: var(--radius-lg);
  padding: 30px;
  border-left: 4px solid var(--accent);
  box-shadow: var(--shadow-sm);
  transition: transform .3s ease, box-shadow .3s ease;
}

.quote-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.quote-card blockquote {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
  margin-bottom: 16px;
  quotes: none;
}

.quote-card figcaption {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 700;
  color: var(--primary);
}

.quote-card figcaption i {
  color: var(--accent);
}

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

.faq-list {
  max-width: 840px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  background: var(--white);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: box-shadow .25s ease;
}

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

.faq-item summary {
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 700;
  color: var(--primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  list-style: none;
  transition: background .25s ease;
}

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

.faq-item summary::after {
  content: "\f078";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  font-size: 14px;
  color: var(--accent);
  transition: transform .3s ease;
  flex-shrink: 0;
}

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

.faq-item[open] summary {
  background: rgba(217, 169, 79, .08);
}

.faq-item p {
  padding: 0 24px 22px;
  font-size: 15px;
  color: var(--text-weak);
  line-height: 1.8;
}

/* ========== CTA ========== */
.section-cta {
  background: var(--white);
}

.cta-box {
  background: linear-gradient(135deg, var(--primary-deep), var(--primary-light));
  border-radius: 28px;
  padding: 64px 48px;
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
}

.cta-box::before {
  content: "";
  position: absolute;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: rgba(217, 169, 79, .18);
  top: -100px;
  right: -80px;
}

.cta-box::after {
  content: "";
  position: absolute;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: rgba(217, 169, 79, .12);
  bottom: -60px;
  left: -40px;
}

.cta-box>* {
  position: relative;
  z-index: 2;
}

.cta-box h2 {
  font-size: clamp(28px, 3.6vw, 40px);
  font-weight: 900;
  letter-spacing: 1px;
  margin-bottom: 14px;
}

.cta-box p {
  font-size: 16px;
  color: rgba(255, 255, 255, .8);
  max-width: 520px;
  margin: 0 auto 32px;
}

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

/* ========== 页脚 ========== */
.footer {
  background: var(--primary-deep);
  color: rgba(255, 255, 255, .7);
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}

.footer-brand .logo {
  color: #fff;
  margin-bottom: 14px;
}

.footer-brand .logo i {
  background: rgba(217, 169, 79, .15);
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  max-width: 340px;
}

.footer-col h5 {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 18px;
  letter-spacing: 1px;
}

.footer-col ul li {
  padding: 5px 0;
  font-size: 14px;
}

.footer-col a {
  transition: color .25s ease, padding-left .25s ease;
  display: inline-block;
}

.footer-col a:hover {
  color: var(--accent);
  padding-left: 4px;
}

.footer-col a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  padding: 22px 0 30px;
  font-size: 14px;
}

.footer-bottom .domain {
  color: rgba(255, 255, 255, .45);
  letter-spacing: .5px;
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .stat-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .quote-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .intro-grid {
    gap: 36px;
  }
}

@media (max-width: 768px) {
  .nav-inner {
    height: 64px;
  }

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

  .nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
    padding: 12px 16px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity .28s ease, transform .28s ease, visibility .28s ease;
  }

  .nav.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .nav ul {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }

  .nav a {
    display: block;
    text-align: center;
  }

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

  .intro-media img {
    height: 300px;
  }

  .media-badge {
    left: auto;
    right: 16px;
    bottom: 16px;
  }

  .page-hero {
    padding: 90px 0 80px;
  }

  .cta-box {
    padding: 48px 24px;
  }

  .topbar-inner {
    justify-content: center;
    text-align: center;
  }
}

@media (max-width: 520px) {
  :root {
    --sp-xl: 44px;
  }

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

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

  .stat-grid {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

  .stat-item strong {
    font-size: 34px;
  }

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

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

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

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

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

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

  .intro-text h2 {
    font-size: 24px;
  }

  .media-scroll {
    grid-auto-columns: 82%;
    grid-template-columns: repeat(5, 82%);
  }
}

/* roulang page: article */
:root {
  --primary: #0d1b2a;
  --primary-deep: #060d17;
  --primary-light: #1e3044;
  --accent: #d4a853;
  --accent-light: #e9cc87;
  --accent-dark: #b08f3d;
  --bg: #f5f3ef;
  --bg-alt: #ffffff;
  --text: #1c1c28;
  --text-muted: #707a87;
  --text-light: #e9edf2;
  --border: #e3ded5;
  --radius: 14px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --shadow: 0 8px 30px rgba(13,27,42,.08);
  --shadow-lg: 0 20px 50px rgba(13,27,42,.16);
  --transition: .3s ease;
  --container: 1200px;
  --font: "PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { font-family: var(--font); font-size: 16px; line-height: 1.7; background: var(--bg); color: var(--text); -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--transition); }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea { font-family: inherit; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.text-center { text-align: center; }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 26px; border-radius: 50px; font-size: .95rem; font-weight: 600; transition: all var(--transition); border: 2px solid transparent; line-height: 1.4; }
.btn:focus-visible { outline: 3px solid rgba(212,168,83,.5); outline-offset: 2px; }
.btn-accent { background: linear-gradient(135deg,var(--accent-light),var(--accent)); color: #1a1408; box-shadow: 0 6px 18px rgba(212,168,83,.35); }
.btn-accent:hover { transform: translateY(-2px); box-shadow: 0 10px 26px rgba(212,168,83,.45); }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-light); transform: translateY(-2px); box-shadow: var(--shadow); }
.btn-outline { border-color: var(--accent); color: var(--accent); background: transparent; }
.btn-outline:hover { background: var(--accent); color: #1a1408; transform: translateY(-2px); }
.btn-outline-light { border-color: rgba(255,255,255,.6); color: #fff; background: transparent; }
.btn-outline-light:hover { background: #fff; color: var(--primary); transform: translateY(-2px); }
.btn-block { display: flex; justify-content: center; width: 100%; }

/* Badge */
.badge { display: inline-block; padding: 4px 14px; border-radius: 50px; font-size: .78rem; font-weight: 600; background: rgba(212,168,83,.15); color: var(--accent-dark); border: 1px solid rgba(212,168,83,.3); }

/* Top bar */
.topbar { background: var(--primary-deep); color: rgba(255,255,255,.75); font-size: .8rem; padding: 8px 0; border-bottom: 1px solid rgba(255,255,255,.06); }
.topbar-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 6px; }
.topbar i { color: var(--accent); margin-right: 4px; }
.topbar-domain { font-family: "SF Mono",Consolas,monospace; letter-spacing: .5px; }

/* Header / Nav */
.site-header { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,.92); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-bottom: 1px solid var(--border); }
.header-inner { display: flex; align-items: center; gap: 32px; padding: 16px 24px; max-width: var(--container); margin: 0 auto; }
.logo { display: inline-flex; align-items: center; gap: 8px; font-size: 1.3rem; font-weight: 800; color: var(--primary); letter-spacing: -.5px; white-space: nowrap; }
.logo i { color: var(--accent); font-size: 1.2rem; }
.logo em { font-style: normal; color: var(--accent); }
.logo:hover { opacity: .85; }
.nav { flex: 1; }
.nav ul { display: flex; align-items: center; gap: 8px; }
.nav a { display: block; padding: 9px 18px; border-radius: 50px; font-weight: 500; color: var(--text); font-size: .92rem; transition: all var(--transition); }
.nav a:hover { background: rgba(212,168,83,.1); color: var(--accent-dark); }
.nav a.active { background: var(--primary); color: #fff; }
.nav a.active:hover { color: #fff; }
.header-cta { white-space: nowrap; padding: 10px 22px; font-size: .88rem; }
.nav-toggle { display: none; font-size: 1.4rem; color: var(--primary); }

/* Page Banner */
.page-banner { position: relative; padding: 84px 0 72px; background: linear-gradient(135deg,rgba(13,27,42,.92),rgba(13,27,42,.72)),url('/assets/images/backpic/back-2.png') center/cover no-repeat; color: #fff; text-align: center; }
.page-banner::after { content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 80px; background: linear-gradient(to top,var(--bg),transparent); pointer-events: none; }
.page-banner .container { position: relative; z-index: 2; }
.breadcrumb { display: inline-flex; flex-wrap: wrap; align-items: center; gap: 8px; font-size: .88rem; color: rgba(255,255,255,.65); margin-bottom: 20px; justify-content: center; }
.breadcrumb a { color: rgba(255,255,255,.85); }
.breadcrumb a:hover { color: var(--accent-light); }
.breadcrumb i { font-size: .7rem; opacity: .5; }
.page-title { font-size: clamp(1.7rem, 4vw, 2.7rem); font-weight: 800; line-height: 1.3; letter-spacing: -.5px; max-width: 860px; margin: 0 auto; text-shadow: 0 4px 20px rgba(0,0,0,.3); }
.page-subtitle { margin-top: 14px; color: rgba(255,255,255,.75); font-size: 1rem; max-width: 600px; margin-left: auto; margin-right: auto; }

/* Article Section */
.article-section { padding: 56px 0 70px; }
.article-layout { display: grid; grid-template-columns: minmax(0,1fr) 340px; gap: 40px; align-items: start; }
.article-main { min-width: 0; }

/* Article Card */
.article-card { background: var(--bg-alt); border-radius: var(--radius-lg); box-shadow: var(--shadow); padding: 48px; border: 1px solid rgba(227,222,213,.4); }
.article-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; margin-bottom: 28px; padding-bottom: 24px; border-bottom: 1px solid var(--border); font-size: .85rem; color: var(--text-muted); }
.article-meta i { margin-right: 5px; color: var(--accent); }
.article-meta .meta-item { display: inline-flex; align-items: center; }

/* Article Body Typography */
.article-body { font-size: 1.06rem; line-height: 1.95; color: #2a2c35; }
.article-body h2 { font-size: 1.55rem; font-weight: 700; color: var(--primary); margin: 2em 0 .8em; line-height: 1.4; padding-left: 14px; border-left: 4px solid var(--accent); }
.article-body h3 { font-size: 1.22rem; font-weight: 700; color: var(--primary); margin: 1.8em 0 .6em; }
.article-body p { margin: 1.15em 0; }
.article-body a { color: var(--accent-dark); text-decoration: underline; text-underline-offset: 3px; }
.article-body a:hover { color: var(--primary); }
.article-body strong { font-weight: 700; color: var(--primary); }
.article-body img { border-radius: var(--radius); box-shadow: var(--shadow); margin: 1.5em auto; }
.article-body blockquote { margin: 1.8em 0; padding: 20px 28px; background: linear-gradient(135deg,rgba(212,168,83,.08),rgba(212,168,83,.03)); border-left: 4px solid var(--accent); border-radius: 0 var(--radius) var(--radius) 0; color: var(--text-muted); font-style: italic; }
.article-body blockquote p { margin: .4em 0; }
.article-body ul, .article-body ol { margin: 1.2em 0; padding-left: 1.6em; }
.article-body ul { list-style: disc; }
.article-body ol { list-style: decimal; }
.article-body li { margin: .5em 0; }
.article-body li::marker { color: var(--accent); }
.article-body table { width: 100%; border-collapse: collapse; margin: 1.5em 0; font-size: .95rem; border-radius: var(--radius-sm); overflow: hidden; }
.article-body th { background: var(--primary); color: #fff; padding: 12px 16px; text-align: left; font-weight: 600; }
.article-body td { padding: 12px 16px; border-bottom: 1px solid var(--border); background: #faf9f7; }
.article-body hr { border: none; border-top: 1px solid var(--border); margin: 2em 0; }

/* Article Footer */
.article-footer { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--border); }
.article-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tag { display: inline-block; padding: 5px 14px; border-radius: 50px; font-size: .78rem; background: rgba(212,168,83,.1); color: var(--accent-dark); border: 1px solid rgba(212,168,83,.25); transition: all var(--transition); }
.tag:hover { background: var(--accent); color: #1a1408; transform: translateY(-1px); }
.article-actions { display: flex; gap: 10px; }
.icon-btn { width: 40px; height: 40px; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; background: var(--bg); border: 1px solid var(--border); color: var(--text-muted); transition: all var(--transition); font-size: .9rem; }
.icon-btn:hover { background: var(--accent); color: #1a1408; border-color: var(--accent); transform: translateY(-2px); }

/* Empty state */
.article-empty { text-align: center; padding: 80px 30px; }
.article-empty i { font-size: 3.5rem; color: var(--accent); opacity: .5; margin-bottom: 20px; }
.article-empty h2 { font-size: 1.8rem; color: var(--primary); margin-bottom: 12px; }
.article-empty p { color: var(--text-muted); margin-bottom: 28px; }

/* Sidebar */
.article-side { display: flex; flex-direction: column; gap: 24px; position: sticky; top: 100px; }
.side-card { background: var(--bg-alt); border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow); padding: 28px; }
.side-card-title { display: flex; align-items: center; gap: 10px; font-size: 1.05rem; font-weight: 700; color: var(--primary); margin-bottom: 20px; padding-bottom: 14px; border-bottom: 1px solid var(--border); }
.side-card-title i { color: var(--accent); }
.side-news-list li { border-bottom: 1px solid #f0ece5; }
.side-news-list li:last-child { border-bottom: none; }
.side-news-list a { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 14px 0; transition: all var(--transition); }
.side-news-list a:hover { padding-left: 8px; }
.side-news-text { font-size: .9rem; color: var(--text); line-height: 1.5; flex: 1; }
.side-news-text:hover { color: var(--accent-dark); }
.side-news-date { font-size: .75rem; color: var(--text-muted); white-space: nowrap; }
.side-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.side-contact p { font-size: .88rem; color: var(--text-muted); margin-bottom: 18px; }
.side-cover { border-radius: var(--radius-sm); margin-bottom: 16px; overflow: hidden; }
.side-cover img { width: 100%; height: 120px; object-fit: cover; transition: transform var(--transition); }
.side-cover:hover img { transform: scale(1.03); }

/* Related Section */
.related-section { padding: 70px 0; background: var(--bg-alt); border-top: 1px solid var(--border); }
.section-header { text-align: center; margin-bottom: 44px; }
.section-eyebrow { display: inline-block; text-transform: uppercase; letter-spacing: 3px; font-size: .75rem; color: var(--accent); font-weight: 600; margin-bottom: 10px; }
.section-title { font-size: clamp(1.6rem,3vw,2.2rem); font-weight: 800; color: var(--primary); line-height: 1.3; letter-spacing: -.5px; }
.section-desc { max-width: 560px; margin: 12px auto 0; color: var(--text-muted); font-size: .95rem; }
.related-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 28px; }
.related-card { background: var(--bg-alt); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow); transition: all var(--transition); display: flex; flex-direction: column; }
.related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: rgba(212,168,83,.4); }
.related-cover { position: relative; height: 190px; overflow: hidden; }
.related-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.related-card:hover .related-cover img { transform: scale(1.05); }
.related-cover::after { content: ''; position: absolute; inset: 0; background: linear-gradient(to top,rgba(13,27,42,.4),transparent 60%); }
.related-cat { position: absolute; top: 14px; left: 14px; z-index: 2; background: rgba(13,27,42,.8); backdrop-filter: blur(8px); color: var(--accent-light); padding: 5px 14px; border-radius: 50px; font-size: .75rem; font-weight: 600; border: 1px solid rgba(212,168,83,.3); }
.related-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.related-title { font-size: 1.08rem; font-weight: 700; color: var(--primary); line-height: 1.4; margin-bottom: 10px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.related-title:hover { color: var(--accent-dark); }
.related-desc { font-size: .88rem; color: var(--text-muted); line-height: 1.6; margin-bottom: 16px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.related-meta { display: flex; justify-content: space-between; align-items: center; margin-top: auto; font-size: .8rem; color: var(--text-muted); }
.related-more { color: var(--accent); font-weight: 600; transition: gap var(--transition); display: inline-flex; align-items: center; gap: 4px; }
.related-more:hover { gap: 8px; }

/* CTA Strip */
.cta-strip { background: linear-gradient(135deg,var(--primary-deep),var(--primary-light) 60%,var(--primary)); color: #fff; padding: 66px 0; position: relative; overflow: hidden; }
.cta-strip::before { content: ''; position: absolute; top: -50%; right: -20%; width: 400px; height: 400px; background: radial-gradient(circle,rgba(212,168,83,.18),transparent 70%); }
.cta-strip::after { content: ''; position: absolute; bottom: -60%; left: -10%; width: 350px; height: 350px; background: radial-gradient(circle,rgba(212,168,83,.12),transparent 70%); }
.cta-inner { position: relative; z-index: 2; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 28px; }
.cta-inner h2 { font-size: clamp(1.5rem,3vw,2.1rem); font-weight: 800; margin-bottom: 8px; letter-spacing: -.5px; }
.cta-inner p { color: rgba(255,255,255,.7); font-size: .95rem; }
.cta-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* Footer */
.footer { background: var(--primary-deep); color: rgba(255,255,255,.7); padding: 60px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,.08); }
.footer-brand .logo { color: #fff; font-size: 1.3rem; margin-bottom: 14px; }
.footer-brand p { font-size: .88rem; line-height: 1.8; max-width: 320px; }
.footer-col h5 { color: #fff; font-size: .95rem; font-weight: 600; margin-bottom: 18px; letter-spacing: 1px; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col a, .footer-col span { font-size: .88rem; color: rgba(255,255,255,.6); transition: color var(--transition); }
.footer-col a:hover { color: var(--accent-light); }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 12px; padding-top: 26px; font-size: .82rem; color: rgba(255,255,255,.4); }
.footer-bottom .domain { font-family: "SF Mono",Consolas,monospace; }

/* Animations */
@keyframes fadeUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
.fade-up { animation: fadeUp .7s ease both; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .6; } }
.pulse { animation: pulse 3s ease infinite; }

/* Responsive */
@media (max-width: 1024px) {
  .article-layout { grid-template-columns: 1fr; }
  .article-side { position: static; flex-direction: row; flex-wrap: wrap; }
  .article-side .side-card { flex: 1 1 calc(50% - 12px); }
  .related-grid { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 768px) {
  .header-inner { flex-wrap: wrap; gap: 12px; padding: 12px 16px; }
  .nav { order: 3; width: 100%; display: none; }
  .nav.nav-open { display: block; }
  .nav ul { flex-direction: column; align-items: stretch; padding: 8px 0; }
  .nav a { text-align: center; }
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; width: 42px; height: 42px; border-radius: 12px; background: var(--bg); border: 1px solid var(--border); }
  .header-cta { display: none; }
  .article-card { padding: 30px 24px; }
  .related-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .cta-inner { flex-direction: column; text-align: center; justify-content: center; }
  .cta-actions { justify-content: center; }
  .article-side { flex-direction: column; }
  .article-side .side-card { flex: none; }
}
@media (max-width: 520px) {
  .topbar-inner { justify-content: center; text-align: center; }
  .topbar-domain { display: none; }
  .container { padding: 0 14px; }
  .article-card { padding: 22px 16px; border-radius: var(--radius); }
  .related-grid { gap: 16px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .article-meta { gap: 10px; }
  .article-body { font-size: 1rem; }
}