/* roulang page: index */
:root {
  --primary: #0f1a3a;
  --primary-light: #1a2a6c;
  --primary-dark: #080f24;
  --accent: #d4a853;
  --accent-light: #e8c97a;
  --accent-dark: #b8923e;
  --bg-light: #f8f9fc;
  --bg-white: #ffffff;
  --bg-dark: #0a0f1f;
  --text: #1a1a2e;
  --text-light: #6b7280;
  --text-white: #ffffff;
  --text-muted: #9ca3af;
  --border: #e5e7eb;
  --border-light: #f0f0f5;
  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow: 0 4px 24px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 48px rgba(0,0,0,0.12);
  --shadow-xl: 0 24px 64px rgba(0,0,0,0.16);
  --transition: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
  --container: 1200px;
  --header-height: 72px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--bg-light);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a { color: var(--primary-light); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent); }
img { max-width: 100%; height: auto; display: block; }
button, input, textarea, select { font-family: inherit; font-size: inherit; outline: none; border: none; }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text); }
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-header { text-align: center; margin-bottom: 48px; }
.section-title { font-size: clamp(1.8rem, 4vw, 2.6rem); font-weight: 800; margin-bottom: 16px; letter-spacing: -0.02em; }
.section-subtitle { font-size: 1.1rem; color: var(--text-light); max-width: 640px; margin: 0 auto; line-height: 1.8; }
.section-divider { width: 60px; height: 4px; background: var(--accent); border-radius: 4px; margin: 16px auto 24px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 32px; border-radius: var(--radius); font-weight: 600; font-size: 1rem;
  cursor: pointer; transition: all var(--transition); border: 2px solid transparent;
  text-align: center; white-space: nowrap;
}
.btn-primary { background: var(--accent); color: var(--primary-dark); border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-light); border-color: var(--accent-light); color: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(212,168,83,0.35); }
.btn-outline { background: transparent; color: var(--text-white); border-color: var(--text-white); }
.btn-outline:hover { background: var(--text-white); color: var(--primary); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(255,255,255,0.2); }
.btn-lg { padding: 16px 40px; font-size: 1.1rem; border-radius: var(--radius-lg); }
.card {
  background: var(--bg-white); border-radius: var(--radius); box-shadow: var(--shadow);
  overflow: hidden; transition: all var(--transition);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.badge {
  display: inline-block; padding: 4px 14px; border-radius: 20px; font-size: 0.8rem;
  font-weight: 500; background: var(--accent); color: var(--primary-dark);
}
/* ===== Header / Nav ===== */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: var(--header-height); transition: all var(--transition);
  background: rgba(15,26,58,0.12); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.header.scrolled { background: rgba(15,26,58,0.92); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border-bottom-color: rgba(255,255,255,0.06); box-shadow: 0 4px 30px rgba(0,0,0,0.2); }
.header .container { display: flex; align-items: center; justify-content: space-between; height: 100%; }
.logo { font-size: 1.4rem; font-weight: 800; color: var(--text-white); letter-spacing: 0.02em; display: flex; align-items: center; gap: 10px; }
.logo:hover { color: var(--accent); }
.logo-icon { width: 32px; height: 32px; background: var(--accent); border-radius: 8px; display: flex; align-items: center; justify-content: center; font-weight: 900; font-size: 1.2rem; color: var(--primary-dark); }
.nav { display: flex; align-items: center; gap: 8px; }
.nav a { color: rgba(255,255,255,0.85); font-weight: 500; padding: 8px 18px; border-radius: var(--radius-sm); font-size: 0.95rem; transition: all var(--transition); position: relative; }
.nav a:hover { color: var(--text-white); background: rgba(255,255,255,0.1); }
.nav a.active { color: var(--accent); background: rgba(212,168,83,0.12); }
.nav a.active::after { content: ''; position: absolute; bottom: 0; left: 50%; transform: translateX(-50%); width: 20px; height: 3px; background: var(--accent); border-radius: 4px; }
.nav-cta { background: var(--accent) !important; color: var(--primary-dark) !important; font-weight: 700 !important; padding: 8px 22px !important; border-radius: var(--radius) !important; }
.nav-cta:hover { background: var(--accent-light) !important; color: var(--primary-dark) !important; transform: translateY(-1px); box-shadow: 0 4px 16px rgba(212,168,83,0.4) !important; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 8px; background: none; border: none; }
.nav-toggle span { width: 28px; height: 2.5px; background: var(--text-white); border-radius: 4px; transition: all var(--transition); }
.nav-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 6px); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -6px); }
/* ===== Hero ===== */
.hero {
  position: relative; min-height: 100vh; display: flex; align-items: center;
  background: var(--primary-dark); overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat; opacity: 0.5; transform: scale(1.05); }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(135deg, rgba(15,26,58,0.85) 0%, rgba(15,26,58,0.4) 50%, rgba(15,26,58,0.7) 100%); }
.hero-content { position: relative; z-index: 2; padding: 120px 0 80px; max-width: 820px; }
.hero-badge { display: inline-block; padding: 6px 20px; border-radius: 20px; background: rgba(212,168,83,0.15); color: var(--accent); font-size: 0.9rem; font-weight: 500; border: 1px solid rgba(212,168,83,0.25); margin-bottom: 24px; backdrop-filter: blur(4px); }
.hero-title { font-size: clamp(2.6rem, 6vw, 4.2rem); font-weight: 900; color: var(--text-white); line-height: 1.15; letter-spacing: -0.03em; margin-bottom: 24px; }
.hero-title span { color: var(--accent); }
.hero-desc { font-size: clamp(1.05rem, 2vw, 1.25rem); color: rgba(255,255,255,0.8); max-width: 600px; line-height: 1.8; margin-bottom: 36px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; }
.hero-actions .btn { min-width: 160px; }
.hero-stat { display: flex; gap: 40px; margin-top: 56px; padding-top: 32px; border-top: 1px solid rgba(255,255,255,0.1); }
.hero-stat-item { text-align: center; }
.hero-stat-num { font-size: 2rem; font-weight: 800; color: var(--accent); }
.hero-stat-label { font-size: 0.85rem; color: rgba(255,255,255,0.6); margin-top: 4px; }
/* ===== Features / 核心板块 ===== */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.feature-card { padding: 36px 28px; text-align: center; background: var(--bg-white); border-radius: var(--radius); box-shadow: var(--shadow); transition: all var(--transition); border: 1px solid var(--border-light); }
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--accent); }
.feature-icon { width: 64px; height: 64px; margin: 0 auto 20px; background: linear-gradient(135deg, var(--primary-light), var(--primary)); border-radius: 16px; display: flex; align-items: center; justify-content: center; font-size: 1.8rem; color: var(--accent); }
.feature-title { font-size: 1.2rem; font-weight: 700; margin-bottom: 12px; }
.feature-desc { font-size: 0.95rem; color: var(--text-light); line-height: 1.7; }
/* ===== Category / 分类入口 ===== */
.cat-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.cat-card { position: relative; border-radius: var(--radius); overflow: hidden; height: 320px; display: flex; align-items: flex-end; cursor: pointer; }
.cat-card-bg { position: absolute; inset: 0; background-size: cover; background-position: center; transition: all 0.6s ease; }
.cat-card:hover .cat-card-bg { transform: scale(1.08); }
.cat-card-overlay { position: absolute; inset: 0; background: linear-gradient(0deg, rgba(15,26,58,0.85) 0%, rgba(15,26,58,0.1) 70%, transparent 100%); }
.cat-card-content { position: relative; z-index: 2; padding: 32px 28px; width: 100%; }
.cat-card-title { font-size: 1.4rem; font-weight: 700; color: var(--text-white); margin-bottom: 8px; }
.cat-card-desc { font-size: 0.95rem; color: rgba(255,255,255,0.75); line-height: 1.6; max-width: 320px; }
.cat-card-tag { display: inline-block; padding: 4px 14px; border-radius: 20px; background: var(--accent); color: var(--primary-dark); font-size: 0.8rem; font-weight: 600; margin-bottom: 12px; }
/* ===== CMS List / 资讯列表 ===== */
.news-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.news-card { display: flex; flex-direction: column; }
.news-card-img { width: 100%; height: 200px; object-fit: cover; border-radius: var(--radius) var(--radius) 0 0; }
.news-card-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.news-card-meta { display: flex; align-items: center; gap: 12px; font-size: 0.85rem; color: var(--text-light); margin-bottom: 12px; }
.news-card-cat { padding: 2px 12px; border-radius: 12px; background: var(--accent); color: var(--primary-dark); font-weight: 500; font-size: 0.75rem; }
.news-card-title { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; line-height: 1.4; }
.news-card-title a { color: var(--text); }
.news-card-title a:hover { color: var(--accent); }
.news-card-excerpt { font-size: 0.9rem; color: var(--text-light); line-height: 1.7; flex: 1; }
.news-card-foot { padding-top: 16px; margin-top: auto; border-top: 1px solid var(--border-light); display: flex; justify-content: space-between; align-items: center; font-size: 0.85rem; color: var(--text-muted); }
.news-empty { grid-column: 1 / -1; text-align: center; padding: 48px; color: var(--text-light); font-size: 1.05rem; background: var(--bg-white); border-radius: var(--radius); box-shadow: var(--shadow-sm); }
/* ===== Stats / 数据 ===== */
.stats-section { background: var(--primary); position: relative; overflow: hidden; }
.stats-section::before { content: ''; position: absolute; inset: 0; background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat; opacity: 0.08; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; position: relative; z-index: 1; }
.stat-item { text-align: center; padding: 32px 16px; }
.stat-num { font-size: 2.8rem; font-weight: 900; color: var(--accent); line-height: 1.1; margin-bottom: 8px; }
.stat-label { font-size: 1rem; color: rgba(255,255,255,0.7); }
/* ===== FAQ ===== */
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: var(--bg-white); border-radius: var(--radius); box-shadow: var(--shadow-sm); overflow: hidden; border: 1px solid var(--border-light); transition: all var(--transition); }
.faq-item:hover { border-color: var(--accent); box-shadow: var(--shadow); }
.faq-q { padding: 20px 24px; font-weight: 600; font-size: 1.05rem; cursor: pointer; display: flex; justify-content: space-between; align-items: center; color: var(--text); background: none; width: 100%; text-align: left; }
.faq-q::after { content: '+'; font-size: 1.4rem; font-weight: 300; color: var(--accent); transition: transform var(--transition); }
.faq-item.open .faq-q::after { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.4s ease; padding: 0 24px; color: var(--text-light); line-height: 1.8; font-size: 0.95rem; }
.faq-item.open .faq-a { max-height: 300px; padding: 0 24px 20px; }
/* ===== CTA ===== */
.cta-section { background: var(--primary-dark); position: relative; overflow: hidden; }
.cta-section::before { content: ''; position: absolute; inset: 0; background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat; opacity: 0.1; }
.cta-content { position: relative; z-index: 1; text-align: center; padding: 80px 0; }
.cta-title { font-size: clamp(1.8rem, 4vw, 2.6rem); font-weight: 800; color: var(--text-white); margin-bottom: 16px; }
.cta-desc { font-size: 1.1rem; color: rgba(255,255,255,0.7); max-width: 560px; margin: 0 auto 32px; line-height: 1.8; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; }
/* ===== Footer ===== */
.footer { background: var(--bg-dark); color: rgba(255,255,255,0.7); padding: 48px 0 32px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 32px; }
.footer-brand .logo { color: var(--text-white); margin-bottom: 16px; }
.footer-desc { font-size: 0.9rem; line-height: 1.7; max-width: 320px; }
.footer-title { font-size: 1rem; font-weight: 700; color: var(--text-white); margin-bottom: 16px; }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { color: rgba(255,255,255,0.6); font-size: 0.9rem; transition: color var(--transition); }
.footer-links a:hover { color: var(--accent); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.06); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; font-size: 0.85rem; color: rgba(255,255,255,0.4); }
.footer-bottom a { color: rgba(255,255,255,0.4); }
.footer-bottom a:hover { color: var(--accent); }
/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .nav { display: none; position: absolute; top: var(--header-height); left: 0; right: 0; background: rgba(15,26,58,0.98); backdrop-filter: blur(20px); flex-direction: column; padding: 20px 24px; gap: 4px; border-bottom: 1px solid rgba(255,255,255,0.06); }
  .nav.open { display: flex; }
  .nav a { padding: 14px 18px; width: 100%; border-radius: var(--radius-sm); }
  .nav a.active::after { display: none; }
  .nav-cta { margin-top: 8px; }
  .nav-toggle { display: flex; }
  .hero-title { font-size: clamp(2rem, 8vw, 3rem); }
  .hero-stat { flex-wrap: wrap; gap: 24px; }
  .hero-stat-item { flex: 1; min-width: 80px; }
  .features-grid { grid-template-columns: 1fr; }
  .cat-grid { grid-template-columns: 1fr; }
  .cat-card { height: 240px; }
  .news-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .stat-num { font-size: 2rem; }
  .section { padding: 56px 0; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { min-width: unset; }
  .cta-actions { flex-direction: column; align-items: center; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .hero { min-height: 90vh; }
  .hero-content { padding: 100px 0 60px; }
  .hero-stat { gap: 16px; }
  .hero-stat-num { font-size: 1.6rem; }
  .section-title { font-size: 1.6rem; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .stat-item { padding: 20px 12px; }
  .btn-lg { padding: 14px 28px; font-size: 1rem; }
}
/* ===== Fade in animation ===== */
.fade-in { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* roulang page: article */
:root {
  --primary: #0f2b4b;
  --primary-light: #1a3f6b;
  --primary-dark: #091e35;
  --accent: #d42a2a;
  --accent-light: #e84a4a;
  --accent-dark: #b01e1e;
  --bg-body: #f5f7fa;
  --bg-white: #ffffff;
  --bg-card: #ffffff;
  --bg-dark: #0a1a2e;
  --bg-muted: #eef1f5;
  --text-primary: #1a1a2e;
  --text-body: #2d3748;
  --text-muted: #6b7a8f;
  --text-light: #a0b0c4;
  --text-white: #ffffff;
  --border: #e2e8f0;
  --border-light: #edf2f7;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.04), 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 8px 30px rgba(0,0,0,0.08), 0 4px 12px rgba(0,0,0,0.05);
  --shadow-lg: 0 20px 50px rgba(0,0,0,0.12), 0 8px 24px rgba(0,0,0,0.08);
  --shadow-xl: 0 32px 64px rgba(0,0,0,0.18);
  --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1200px;
  --header-height: 72px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;}
body{font-family:var(--font-sans);color:var(--text-body);background:var(--bg-body);line-height:1.7;font-size:16px;}
a{color:var(--primary);text-decoration:none;transition:color var(--transition);}
a:hover{color:var(--accent);}
img{max-width:100%;height:auto;display:block;border-radius:var(--radius-md);}
ul,ol{list-style:none;}
button,input,textarea{font-family:inherit;font-size:inherit;}
.container{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 24px;}
@media(max-width:768px){.container{padding:0 16px;}}

/* Header & Nav */
.header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(255,255,255,0.88);
  backdrop-filter:blur(24px) saturate(180%);
  -webkit-backdrop-filter:blur(24px) saturate(180%);
  border-bottom:1px solid rgba(255,255,255,0.3);
  box-shadow:0 1px 12px rgba(0,0,0,0.04);
  height:var(--header-height);
  transition:background var(--transition),box-shadow var(--transition);
}
.header.scrolled{background:rgba(255,255,255,0.96);box-shadow:0 4px 30px rgba(0,0,0,0.06);}
.header .container{display:flex;align-items:center;justify-content:space-between;height:100%;}
.logo{
  display:flex;align-items:center;gap:10px;
  font-size:22px;font-weight:700;color:var(--primary);
  letter-spacing:-0.3px;
  transition:opacity var(--transition);
}
.logo:hover{opacity:0.85;color:var(--primary);}
.logo-icon{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:10px;
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
  color:#fff;font-size:18px;font-weight:800;
  box-shadow:0 4px 12px rgba(15,43,75,0.25);
}
.nav{display:flex;align-items:center;gap:8px;}
.nav a{
  position:relative;
  padding:8px 18px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:500;color:var(--text-body);
  transition:all var(--transition);
  white-space:nowrap;
}
.nav a::after{
  content:'';position:absolute;bottom:2px;left:50%;transform:translateX(-50%);
  width:0;height:2.5px;border-radius:3px;
  background:var(--accent);transition:width var(--transition);
}
.nav a:hover{color:var(--primary);background:rgba(15,43,75,0.06);}
.nav a:hover::after{width:60%;}
.nav a.active{color:var(--primary);font-weight:600;}
.nav a.active::after{width:60%;background:var(--accent);}
.nav a.nav-cta{
  background:linear-gradient(135deg,var(--accent),var(--accent-light));
  color:#fff !important;padding:10px 26px;border-radius:50px;
  font-weight:600;font-size:14px;letter-spacing:0.3px;
  box-shadow:0 6px 20px rgba(212,42,42,0.3);
  transition:all var(--transition);
}
.nav a.nav-cta::after{display:none;}
.nav a.nav-cta:hover{transform:translateY(-2px);box-shadow:0 10px 30px rgba(212,42,42,0.4);background:linear-gradient(135deg,var(--accent-dark),var(--accent));}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px;border-radius:8px;transition:background var(--transition);}
.nav-toggle span{display:block;width:26px;height:2.5px;background:var(--primary);border-radius:4px;transition:all var(--transition);}
.nav-toggle:hover{background:rgba(15,43,75,0.06);}
@media(max-width:820px){
  .nav-toggle{display:flex;}
  .nav{position:fixed;top:var(--header-height);left:0;right:0;background:rgba(255,255,255,0.98);backdrop-filter:blur(20px);flex-direction:column;padding:20px 24px 28px;gap:6px;border-bottom:1px solid var(--border);transform:translateY(-120%);opacity:0;pointer-events:none;transition:all 0.4s cubic-bezier(0.4,0,0.2,1);box-shadow:var(--shadow-lg);}
  .nav.open{transform:translateY(0);opacity:1;pointer-events:auto;}
  .nav a{width:100%;text-align:center;padding:12px 18px;font-size:16px;border-radius:var(--radius-sm);}
  .nav a::after{display:none;}
  .nav a.active{background:rgba(15,43,75,0.06);}
  .nav a.nav-cta{margin-top:8px;}
}

/* Article Banner */
.article-banner{
  position:relative;margin-top:var(--header-height);
  min-height:380px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--primary-dark) 0%,var(--primary) 40%,var(--primary-light) 100%);
  overflow:hidden;
}
.article-banner::before{
  content:'';position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  opacity:0.25;mix-blend-mode:overlay;
}
.article-banner::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,26,46,0.3) 0%,rgba(10,26,46,0.7) 100%);
}
.article-banner .container{position:relative;z-index:2;text-align:center;padding:60px 24px;}
.article-badge{
  display:inline-block;padding:6px 20px;border-radius:50px;
  background:rgba(255,255,255,0.15);backdrop-filter:blur(8px);
  color:var(--text-white);font-size:13px;font-weight:500;
  letter-spacing:0.5px;margin-bottom:20px;
  border:1px solid rgba(255,255,255,0.15);
}
.article-banner h1{
  font-size:40px;font-weight:800;color:var(--text-white);
  line-height:1.25;max-width:800px;margin:0 auto 20px;
  text-shadow:0 4px 30px rgba(0,0,0,0.2);
  letter-spacing:-0.5px;
}
.article-meta{
  display:flex;align-items:center;justify-content:center;gap:24px;
  flex-wrap:wrap;color:rgba(255,255,255,0.75);font-size:14px;
}
.article-meta span{display:flex;align-items:center;gap:6px;}
.article-meta .meta-icon{font-size:16px;opacity:0.7;}
@media(max-width:768px){
  .article-banner{min-height:280px;}
  .article-banner h1{font-size:28px;}
  .article-banner .container{padding:40px 16px;}
  .article-meta{gap:14px;font-size:13px;}
}

/* Breadcrumb */
.breadcrumb{
  background:var(--bg-white);border-bottom:1px solid var(--border-light);
  padding:14px 0;
}
.breadcrumb .container{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-muted);}
.breadcrumb a{color:var(--text-muted);font-weight:500;}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:var(--text-light);font-size:12px;}

/* Main Content */
.article-main{padding:48px 0 60px;}
.article-main .container{max-width:840px;}
.article-body{
  background:var(--bg-white);border-radius:var(--radius-lg);
  padding:48px 56px;box-shadow:var(--shadow-sm);
  border:1px solid var(--border-light);
}
.article-body h2{font-size:26px;font-weight:700;color:var(--primary);margin:36px 0 16px;line-height:1.35;border-left:4px solid var(--accent);padding-left:18px;}
.article-body h3{font-size:20px;font-weight:600;color:var(--text-primary);margin:28px 0 12px;}
.article-body p{font-size:16px;line-height:1.9;color:var(--text-body);margin-bottom:18px;}
.article-body ul,.article-body ol{padding-left:24px;margin-bottom:20px;}
.article-body li{font-size:16px;line-height:1.8;color:var(--text-body);margin-bottom:6px;list-style:disc;}
.article-body a{color:var(--accent);font-weight:500;border-bottom:1px solid transparent;transition:border var(--transition);}
.article-body a:hover{border-bottom-color:var(--accent);}
.article-body blockquote{
  margin:24px 0;padding:20px 28px;background:var(--bg-muted);
  border-left:4px solid var(--accent);border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:var(--text-primary);font-style:italic;font-size:15px;line-height:1.8;
}
.article-body img{border-radius:var(--radius-md);margin:24px 0;box-shadow:var(--shadow-sm);}
.article-body .img-caption{text-align:center;font-size:13px;color:var(--text-muted);margin-top:-12px;margin-bottom:24px;}
.article-tags{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:40px;padding-top:28px;
  border-top:1px solid var(--border);
}
.article-tags .tag{
  padding:6px 18px;border-radius:50px;background:var(--bg-muted);
  font-size:13px;color:var(--text-muted);transition:all var(--transition);
  border:1px solid transparent;
}
.article-tags .tag:hover{background:var(--primary);color:#fff;border-color:var(--primary);transform:translateY(-1px);}
.article-not-found{
  text-align:center;padding:80px 24px;
}
.article-not-found h2{font-size:32px;color:var(--primary);margin-bottom:16px;}
.article-not-found p{font-size:16px;color:var(--text-muted);margin-bottom:24px;}
.article-not-found .btn-back{
  display:inline-block;padding:12px 36px;border-radius:50px;
  background:var(--primary);color:#fff;font-weight:600;
  transition:all var(--transition);
}
.article-not-found .btn-back:hover{background:var(--accent);transform:translateY(-2px);box-shadow:var(--shadow-md);}
@media(max-width:768px){
  .article-main{padding:32px 0 40px;}
  .article-body{padding:28px 20px;border-radius:var(--radius-md);}
  .article-body h2{font-size:22px;}
  .article-body p{font-size:15px;}
}

/* Related Posts */
.related-section{padding:60px 0;background:var(--bg-body);}
.related-section .section-title{text-align:center;margin-bottom:44px;}
.related-section .section-title h2{font-size:30px;font-weight:800;color:var(--primary);letter-spacing:-0.3px;}
.related-section .section-title p{color:var(--text-muted);margin-top:8px;font-size:16px;}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.related-card{
  background:var(--bg-white);border-radius:var(--radius-md);
  overflow:hidden;box-shadow:var(--shadow-sm);border:1px solid var(--border-light);
  transition:all var(--transition);display:flex;flex-direction:column;
}
.related-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent;}
.related-card .card-img{width:100%;height:200px;object-fit:cover;border-radius:0;transition:transform 0.5s;}
.related-card:hover .card-img{transform:scale(1.05);}
.related-card .card-body{padding:20px 22px 22px;flex:1;display:flex;flex-direction:column;}
.related-card .card-cat{
  display:inline-block;padding:3px 14px;border-radius:50px;
  background:rgba(15,43,75,0.08);color:var(--primary);
  font-size:12px;font-weight:600;margin-bottom:10px;width:fit-content;
}
.related-card h3{font-size:17px;font-weight:700;color:var(--text-primary);line-height:1.4;margin-bottom:8px;flex:1;}
.related-card h3 a{color:var(--text-primary);transition:color var(--transition);}
.related-card h3 a:hover{color:var(--accent);}
.related-card .card-meta{font-size:13px;color:var(--text-muted);display:flex;align-items:center;gap:14px;margin-top:8px;}
.related-card .card-excerpt{font-size:14px;color:var(--text-muted);line-height:1.6;margin-bottom:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
@media(max-width:1024px){.related-grid{grid-template-columns:repeat(2,1fr);}}
@media(max-width:640px){.related-grid{grid-template-columns:1fr;}.related-section{padding:40px 0;}.related-section .section-title h2{font-size:24px;}}

/* FAQ */
.faq-section{padding:60px 0;background:var(--bg-white);}
.faq-section .section-title{text-align:center;margin-bottom:44px;}
.faq-section .section-title h2{font-size:30px;font-weight:800;color:var(--primary);letter-spacing:-0.3px;}
.faq-section .section-title p{color:var(--text-muted);margin-top:8px;font-size:16px;}
.faq-list{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:var(--bg-body);border-radius:var(--radius-md);
  border:1px solid var(--border-light);overflow:hidden;
  transition:all var(--transition);
}
.faq-item:hover{border-color:var(--border);}
.faq-question{
  padding:18px 24px;display:flex;align-items:center;justify-content:space-between;
  cursor:pointer;font-size:16px;font-weight:600;color:var(--text-primary);
  gap:16px;user-select:none;transition:color var(--transition);
}
.faq-question .faq-icon{font-size:20px;color:var(--accent);font-weight:300;transition:transform var(--transition);flex-shrink:0;}
.faq-item.active .faq-question{color:var(--primary);}
.faq-item.active .faq-icon{transform:rotate(45deg);}
.faq-answer{
  max-height:0;overflow:hidden;transition:max-height 0.4s ease,padding 0.3s ease;
  padding:0 24px;color:var(--text-body);font-size:15px;line-height:1.8;
}
.faq-item.active .faq-answer{max-height:300px;padding:0 24px 20px;}
.faq-answer p{margin-bottom:8px;}
.faq-answer p:last-child{margin-bottom:0;}
@media(max-width:768px){.faq-section{padding:40px 0;}.faq-section .section-title h2{font-size:24px;}.faq-question{padding:14px 18px;font-size:15px;}}

/* CTA */
.cta-section{
  padding:72px 0;background:linear-gradient(135deg,var(--primary-dark),var(--primary),var(--primary-light));
  position:relative;overflow:hidden;
}
.cta-section::before{
  content:'';position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  opacity:0.08;mix-blend-mode:overlay;
}
.cta-section .container{position:relative;z-index:2;text-align:center;}
.cta-section h2{font-size:34px;font-weight:800;color:var(--text-white);margin-bottom:14px;letter-spacing:-0.3px;}
.cta-section p{font-size:17px;color:rgba(255,255,255,0.8);max-width:600px;margin:0 auto 28px;line-height:1.7;}
.cta-section .cta-btn{
  display:inline-block;padding:16px 48px;border-radius:50px;
  background:linear-gradient(135deg,var(--accent),var(--accent-light));
  color:#fff;font-size:16px;font-weight:700;letter-spacing:0.5px;
  box-shadow:0 8px 30px rgba(212,42,42,0.4);
  transition:all var(--transition);
}
.cta-section .cta-btn:hover{transform:translateY(-3px);box-shadow:0 14px 40px rgba(212,42,42,0.5);background:linear-gradient(135deg,var(--accent-dark),var(--accent));}
.cta-section .cta-sub{display:block;margin-top:16px;font-size:13px;color:rgba(255,255,255,0.5);}
@media(max-width:768px){.cta-section{padding:48px 0;}.cta-section h2{font-size:26px;}.cta-section .cta-btn{padding:14px 36px;font-size:15px;}}

/* Footer */
.footer{
  background:var(--primary-dark);color:rgba(255,255,255,0.7);
  padding:56px 0 0;border-top:1px solid rgba(255,255,255,0.06);
}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,0.06);}
.footer-brand .logo{color:var(--text-white);font-size:20px;margin-bottom:16px;}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,0.6);max-width:360px;}
.footer-title{font-size:15px;font-weight:700;color:var(--text-white);margin-bottom:16px;letter-spacing:0.3px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,0.6);transition:all var(--transition);}
.footer-links a:hover{color:var(--accent-light);padding-left:4px;}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;padding:24px 0;font-size:13px;color:rgba(255,255,255,0.4);flex-wrap:wrap;gap:12px;}
.footer-bottom a{color:rgba(255,255,255,0.5);transition:color var(--transition);}
.footer-bottom a:hover{color:var(--accent-light);}
@media(max-width:900px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px;}}
@media(max-width:640px){.footer-grid{grid-template-columns:1fr;gap:28px;}.footer{padding:40px 0 0;}.footer-bottom{flex-direction:column;text-align:center;}}

/* Utilities */
.text-center{text-align:center;}
.mt-8{margin-top:8px;}
.mt-16{margin-top:16px;}
.mt-24{margin-top:24px;}
.mt-32{margin-top:32px;}
.mb-16{margin-bottom:16px;}
.mb-24{margin-bottom:24px;}
.gap-8{gap:8px;}
.gap-16{gap:16px;}
.flex-center{display:flex;align-items:center;justify-content:center;}

/* Animations */
@keyframes fadeInUp{from{opacity:0;transform:translateY(30px);}to{opacity:1;transform:translateY(0);}}
.fade-in-up{animation:fadeInUp 0.6s ease-out both;}
.fade-in-up-d1{animation-delay:0.1s;}
.fade-in-up-d2{animation-delay:0.2s;}
.fade-in-up-d3{animation-delay:0.3s;}

/* Loading Shimmer for related cards empty state */
.empty-state{text-align:center;padding:40px 0;color:var(--text-muted);font-size:15px;grid-column:1/-1;}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --color-primary: #0a1628;
            --color-primary-light: #122240;
            --color-secondary: #1a2a4a;
            --color-accent: #e8b830;
            --color-accent-hover: #d4a820;
            --color-accent-light: rgba(232, 184, 48, 0.12);
            --color-bg: #0b0f1a;
            --color-bg-alt: #111b2e;
            --color-bg-card: #162240;
            --color-text: #f0f2f8;
            --color-text-muted: #98a8c8;
            --color-text-weak: #6a7a9a;
            --color-border: rgba(232, 184, 48, 0.2);
            --color-border-light: rgba(255, 255, 255, 0.06);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --radius-xl: 32px;
            --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 40px rgba(232, 184, 48, 0.08);
            --transition: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            --container: 1200px;
            --nav-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background: var(--color-bg);
            overflow-x: hidden;
        }

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }

        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
        }

        button {
            cursor: pointer;
            background: none;
        }

        ul,
        ol {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.25;
            font-weight: 700;
            color: var(--color-text);
        }

        h1 {
            font-size: clamp(2.2rem, 6.5vw, 4.2rem);
            letter-spacing: -0.02em;
        }
        h2 {
            font-size: clamp(1.6rem, 4vw, 2.6rem);
            letter-spacing: -0.01em;
        }
        h3 {
            font-size: clamp(1.2rem, 2.5vw, 1.6rem);
        }
        h4 {
            font-size: 1.1rem;
        }

        p {
            color: var(--color-text-muted);
            margin-bottom: 1rem;
        }

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

        /* ===== 玻璃导航 ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            height: var(--nav-height);
            display: flex;
            align-items: center;
            background: transparent;
            transition: background var(--transition), box-shadow var(--transition), backdrop-filter var(--transition);
            border-bottom: 1px solid transparent;
        }

        .header.scrolled {
            background: rgba(10, 22, 40, 0.82);
            backdrop-filter: blur(18px) saturate(1.4);
            -webkit-backdrop-filter: blur(18px) saturate(1.4);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
        }

        .header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--color-text);
            letter-spacing: -0.02em;
            flex-shrink: 0;
        }
        .logo:hover {
            color: var(--color-accent);
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--color-accent);
            color: var(--color-primary);
            border-radius: var(--radius-sm);
            font-weight: 900;
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            color: var(--color-text-muted);
            font-weight: 500;
            font-size: 0.95rem;
            transition: background var(--transition), color var(--transition);
            position: relative;
            white-space: nowrap;
        }
        .nav a:hover {
            color: var(--color-text);
            background: rgba(255, 255, 255, 0.06);
        }
        .nav a.active {
            color: var(--color-accent);
            background: var(--color-accent-light);
        }
        .nav a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--color-accent);
            border-radius: 2px;
        }

        .nav .nav-cta {
            background: var(--color-accent);
            color: var(--color-primary);
            font-weight: 700;
            padding: 9px 24px;
            border-radius: var(--radius-sm);
            margin-left: 10px;
            box-shadow: 0 4px 20px rgba(232, 184, 48, 0.25);
        }
        .nav .nav-cta:hover {
            background: var(--color-accent-hover);
            color: var(--color-primary);
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(232, 184, 48, 0.35);
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            width: 28px;
            height: 28px;
            justify-content: center;
            align-items: center;
            background: transparent;
            border: none;
            cursor: pointer;
            z-index: 1001;
        }
        .nav-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--color-text);
            border-radius: 2px;
            transition: transform var(--transition), opacity var(--transition);
        }
        .nav-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(4px, 6px);
        }
        .nav-toggle.active span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(4px, -6px);
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            background: var(--color-primary);
            overflow: hidden;
            padding: 120px 24px 80px;
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.35;
            transform: scale(1.05);
            transition: transform 0.7s ease;
        }
        .hero:hover .hero-bg {
            transform: scale(1);
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(10, 22, 40, 0.55) 0%, rgba(10, 22, 40, 0.85) 60%, var(--color-bg) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 820px;
            margin: 0 auto;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--color-accent-light);
            border: 1px solid var(--color-border);
            padding: 6px 18px;
            border-radius: 50px;
            font-size: 0.85rem;
            color: var(--color-accent);
            font-weight: 600;
            margin-bottom: 24px;
            letter-spacing: 0.3px;
            backdrop-filter: blur(4px);
        }
        .hero-badge i {
            font-size: 0.75rem;
        }
        .hero h1 {
            margin-bottom: 20px;
            background: linear-gradient(135deg, #ffffff 0%, #c8d8f0 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero p {
            font-size: clamp(1.05rem, 1.8vw, 1.25rem);
            color: var(--color-text-muted);
            max-width: 640px;
            margin: 0 auto 36px;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
            align-items: center;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 34px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition);
            border: 2px solid transparent;
            text-decoration: none;
        }
        .btn-primary {
            background: var(--color-accent);
            color: var(--color-primary);
            border-color: var(--color-accent);
            box-shadow: 0 4px 24px rgba(232, 184, 48, 0.3);
        }
        .btn-primary:hover {
            background: var(--color-accent-hover);
            border-color: var(--color-accent-hover);
            color: var(--color-primary);
            transform: translateY(-3px);
            box-shadow: 0 10px 40px rgba(232, 184, 48, 0.4);
        }
        .btn-outline {
            background: transparent;
            color: var(--color-text);
            border-color: rgba(255, 255, 255, 0.2);
        }
        .btn-outline:hover {
            border-color: var(--color-accent);
            color: var(--color-accent);
            background: var(--color-accent-light);
            transform: translateY(-3px);
        }
        .btn-white {
            background: #fff;
            color: var(--color-primary);
            border-color: #fff;
        }
        .btn-white:hover {
            background: var(--color-accent);
            color: var(--color-primary);
            border-color: var(--color-accent);
            transform: translateY(-3px);
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 40px 60px;
            margin-top: 50px;
            padding-top: 40px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .hero-stat {
            text-align: center;
        }
        .hero-stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-accent);
            line-height: 1.2;
        }
        .hero-stat-label {
            font-size: 0.85rem;
            color: var(--color-text-weak);
            margin-top: 4px;
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: 80px 0;
        }
        .section-dark {
            background: var(--color-bg-alt);
        }
        .section-card {
            background: var(--color-bg-card);
        }
        .section-header {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 56px;
        }
        .section-header h2 {
            margin-bottom: 16px;
        }
        .section-header p {
            font-size: 1.05rem;
            color: var(--color-text-muted);
        }
        .section-tag {
            display: inline-block;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--color-accent);
            margin-bottom: 12px;
            border: 1px solid var(--color-border);
            padding: 4px 16px;
            border-radius: 50px;
            background: var(--color-accent-light);
        }

        /* ===== 平台简介 ===== */
        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }
        .intro-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }
        .intro-image img {
            width: 100%;
            height: 420px;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .intro-image:hover img {
            transform: scale(1.03);
        }
        .intro-text h3 {
            font-size: 1.8rem;
            margin-bottom: 20px;
        }
        .intro-text p {
            margin-bottom: 16px;
            font-size: 1rem;
            line-height: 1.8;
        }
        .intro-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
            margin-top: 24px;
        }
        .intro-feature-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.95rem;
            color: var(--color-text-muted);
        }
        .intro-feature-item i {
            color: var(--color-accent);
            font-size: 0.85rem;
            width: 22px;
            text-align: center;
        }

        /* ===== 入口方式 ===== */
        .entry-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .entry-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            padding: 36px 28px;
            text-align: center;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }
        .entry-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--color-accent);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition);
        }
        .entry-card:hover::before {
            transform: scaleX(1);
        }
        .entry-card:hover {
            transform: translateY(-6px);
            border-color: var(--color-border);
            box-shadow: var(--shadow-md), var(--shadow-glow);
        }
        .entry-icon {
            width: 64px;
            height: 64px;
            border-radius: var(--radius-md);
            background: var(--color-accent-light);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 1.6rem;
            color: var(--color-accent);
            transition: all var(--transition);
        }
        .entry-card:hover .entry-icon {
            background: var(--color-accent);
            color: var(--color-primary);
            transform: scale(1.05);
        }
        .entry-card h4 {
            margin-bottom: 12px;
            font-size: 1.15rem;
        }
        .entry-card p {
            font-size: 0.92rem;
            color: var(--color-text-weak);
            margin-bottom: 0;
        }
        .entry-card .entry-tag {
            display: inline-block;
            margin-top: 16px;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--color-accent);
            background: var(--color-accent-light);
            padding: 3px 14px;
            border-radius: 50px;
            border: 1px solid var(--color-border);
        }

        /* ===== 平台特色 ===== */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .feature-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--color-border-light);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
        }
        .feature-card:hover {
            transform: translateY(-6px);
            border-color: var(--color-border);
            box-shadow: var(--shadow-md), var(--shadow-glow);
        }
        .feature-card-image {
            height: 200px;
            overflow: hidden;
            position: relative;
        }
        .feature-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .feature-card:hover .feature-card-image img {
            transform: scale(1.06);
        }
        .feature-card-image .feature-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 50%, rgba(10, 22, 40, 0.7) 100%);
        }
        .feature-card-body {
            padding: 24px 28px 28px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .feature-card-body h4 {
            margin-bottom: 10px;
            font-size: 1.15rem;
        }
        .feature-card-body p {
            font-size: 0.92rem;
            color: var(--color-text-weak);
            margin-bottom: 16px;
            flex: 1;
        }
        .feature-card-body .feature-link {
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--color-accent);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap var(--transition);
        }
        .feature-card-body .feature-link:hover {
            gap: 12px;
        }

        /* ===== 使用流程 ===== */
        .flow-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }
        .flow-step {
            text-align: center;
            padding: 32px 20px;
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition);
            position: relative;
        }
        .flow-step:hover {
            transform: translateY(-4px);
            border-color: var(--color-border);
            box-shadow: var(--shadow-md);
        }
        .flow-step .step-number {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--color-accent);
            color: var(--color-primary);
            font-weight: 800;
            font-size: 1.1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            transition: all var(--transition);
        }
        .flow-step:hover .step-number {
            transform: scale(1.1);
            box-shadow: 0 0 30px rgba(232, 184, 48, 0.3);
        }
        .flow-step h4 {
            font-size: 1.05rem;
            margin-bottom: 10px;
        }
        .flow-step p {
            font-size: 0.88rem;
            color: var(--color-text-weak);
            margin-bottom: 0;
        }
        .flow-arrow {
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-accent);
            font-size: 1.2rem;
            opacity: 0.6;
            padding: 0 4px;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--color-bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: border-color var(--transition);
        }
        .faq-item.active {
            border-color: var(--color-border);
        }
        .faq-question {
            padding: 20px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            color: var(--color-text);
            background: transparent;
            width: 100%;
            text-align: left;
            transition: color var(--transition);
            border: none;
        }
        .faq-question:hover {
            color: var(--color-accent);
        }
        .faq-question i {
            font-size: 0.85rem;
            transition: transform var(--transition);
            color: var(--color-text-muted);
            flex-shrink: 0;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
            color: var(--color-accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 24px;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }
        .faq-answer p {
            font-size: 0.95rem;
            color: var(--color-text-muted);
            margin-bottom: 0;
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            padding: 100px 0;
            background: var(--color-primary);
            overflow: hidden;
            text-align: center;
        }
        .cta-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.2;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-section h2 {
            font-size: clamp(1.8rem, 4vw, 2.8rem);
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 1.05rem;
            color: var(--color-text-muted);
            max-width: 560px;
            margin: 0 auto 36px;
        }
        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--color-primary);
            border-top: 1px solid var(--color-border-light);
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid var(--color-border-light);
        }
        .footer-brand .logo {
            font-size: 1.25rem;
            margin-bottom: 16px;
            display: inline-flex;
        }
        .footer-desc {
            font-size: 0.92rem;
            color: var(--color-text-weak);
            line-height: 1.7;
            max-width: 320px;
        }
        .footer-title {
            font-weight: 700;
            font-size: 1rem;
            color: var(--color-text);
            margin-bottom: 18px;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            transition: color var(--transition), padding-left var(--transition);
        }
        .footer-links a:hover {
            color: var(--color-accent);
            padding-left: 4px;
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            padding: 24px 0;
            gap: 12px;
            font-size: 0.85rem;
            color: var(--color-text-weak);
        }
        .footer-bottom a {
            color: var(--color-text-muted);
        }
        .footer-bottom a:hover {
            color: var(--color-accent);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .intro-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .intro-image img {
                height: 300px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .flow-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .flow-arrow {
                display: none;
            }
        }

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

            .nav {
                position: fixed;
                top: 0;
                left: 0;
                width: 100%;
                height: 100vh;
                background: rgba(10, 22, 40, 0.96);
                backdrop-filter: blur(24px);
                -webkit-backdrop-filter: blur(24px);
                flex-direction: column;
                justify-content: center;
                align-items: center;
                gap: 12px;
                transform: translateY(-100%);
                opacity: 0;
                transition: transform 0.4s ease, opacity 0.4s ease;
                z-index: 999;
                padding: 80px 24px 40px;
            }
            .nav.open {
                transform: translateY(0);
                opacity: 1;
            }
            .nav a {
                font-size: 1.2rem;
                padding: 14px 28px;
                width: 100%;
                max-width: 280px;
                text-align: center;
            }
            .nav a.active::after {
                display: none;
            }
            .nav .nav-cta {
                margin-left: 0;
                margin-top: 12px;
                max-width: 280px;
                width: 100%;
                text-align: center;
            }
            .nav-toggle {
                display: flex;
            }

            .hero {
                min-height: 90vh;
                padding: 100px 20px 60px;
            }
            .hero-stats {
                gap: 24px 32px;
                margin-top: 36px;
                padding-top: 28px;
            }

            .section {
                padding: 56px 0;
            }
            .section-header {
                margin-bottom: 36px;
            }

            .entry-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .feature-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .flow-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .intro-features {
                grid-template-columns: 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }

            .faq-question {
                padding: 16px 18px;
                font-size: 0.95rem;
            }
            .faq-item.active .faq-answer {
                padding: 0 18px 16px;
            }

            .cta-section {
                padding: 60px 0;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .hero p {
                font-size: 0.95rem;
            }
            .btn {
                padding: 12px 24px;
                font-size: 0.9rem;
                width: 100%;
                justify-content: center;
            }
            .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .hero-stat-number {
                font-size: 1.5rem;
            }
            .flow-grid {
                grid-template-columns: 1fr;
            }
            .feature-card-image {
                height: 160px;
            }
            .entry-card {
                padding: 24px 18px;
            }
            .section-header h2 {
                font-size: 1.4rem;
            }
            .intro-image img {
                height: 220px;
            }
            .footer {
                padding: 40px 0 0;
            }
        }

        /* ===== 工具类 ===== */
        .text-center {
            text-align: center;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .gap-8 {
            gap: 8px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }

        /* ===== 滚动条 ===== */
        ::-webkit-scrollbar {
            width: 6px;
            height: 6px;
        }
        ::-webkit-scrollbar-track {
            background: var(--color-primary);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--color-secondary);
            border-radius: 3px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--color-accent);
        }

        /* ===== 选中 ===== */
        ::selection {
            background: var(--color-accent);
            color: var(--color-primary);
        }

        /* ===== 焦点 ===== */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--color-accent);
            outline-offset: 3px;
        }