/* roulang page: index */
:root{
  --primary:#E63946;
  --primary-dark:#C1121F;
  --accent:#457B9D;
  --accent-dark:#2B4B63;
  --dark-bg:#0D1B2A;
  --dark-navbar:#0A1520;
  --bg-light:#F8FAFC;
  --bg-white:#FFFFFF;
  --text-main:#1E293B;
  --text-muted:#64748B;
  --border-color:#E2E8F0;
  --shadow-sm:0 2px 8px rgba(13,27,42,0.06);
  --shadow-md:0 8px 30px rgba(13,27,42,0.08);
  --shadow-lg:0 16px 40px rgba(13,27,42,0.12);
  --radius-sm:8px;
  --radius-md:16px;
  --radius-lg:24px;
  --transition:all 0.3s ease;
}
*,*::before,*::after{
  box-sizing:border-box;
  margin:0;
  padding:0;
}
html{
  scroll-behavior:smooth;
}
body{
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.7;
  color:var(--text-main);
  background:var(--bg-light);
  text-rendering:optimizeLegibility;
}
img{
  max-width:100%;
  height:auto;
  display:block;
  border-radius:var(--radius-sm);
}
a{
  color:inherit;
  text-decoration:none;
  transition:var(--transition);
}
a:hover{
  color:var(--primary);
}
button{
  font-family:inherit;
  cursor:pointer;
}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.header-main{
  background:linear-gradient(135deg,#0A1520 0%,#16293C 60%,#0D1B2A 100%);
  position:sticky;
  top:0;
  z-index:1000;
  box-shadow:0 4px 20px rgba(0,0,0,0.3);
  border-bottom:1px solid rgba(255,255,255,0.06);
}
.nav-wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:72px;
}
.brand-logo{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:1.5rem;
  font-weight:800;
  color:#fff;
  letter-spacing:0.5px;
  background:linear-gradient(135deg,#FFD166,#FF9F1C);
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
  white-space:nowrap;
  flex-shrink:0;
}
.brand-logo i{
  color:var(--primary);
  font-size:1.8rem;
}
.nav-center{
  display:flex;
  align-items:center;
  gap:12px;
  list-style:none;
  margin:0;
}
.nav-center li a{
  display:inline-block;
  padding:8px 18px;
  border-radius:40px;
  color:#CFD8E3;
  font-weight:500;
  font-size:0.95rem;
  background:rgba(255,255,255,0.04);
  border:1px solid rgba(255,255,255,0.08);
  transition:var(--transition);
}
.nav-center li a:hover,
.nav-center li a.active{
  background:var(--primary);
  color:#fff;
  border-color:var(--primary);
  box-shadow:0 4px 16px rgba(230,57,70,0.35);
  transform:translateY(-2px);
}
.nav-right{
  display:flex;
  align-items:center;
  gap:14px;
  flex-shrink:0;
}
.btn-cta{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:10px 22px;
  border-radius:40px;
  font-weight:600;
  font-size:0.92rem;
  border:none;
  background:linear-gradient(135deg,#E63946 0%,#FF6B6B 100%);
  color:#fff;
  box-shadow:0 6px 20px rgba(230,57,70,0.35);
  transition:var(--transition);
}
.btn-cta:hover{
  transform:translateY(-3px);
  box-shadow:0 10px 28px rgba(230,57,70,0.45);
  color:#fff;
}
.search-toggle{
  display:none;
}
.search-form{
  display:flex;
  align-items:center;
  background:rgba(255,255,255,0.07);
  border-radius:40px;
  padding:5px 8px;
  border:1px solid rgba(255,255,255,0.1);
  width:180px;
}
.search-form input{
  background:transparent;
  border:none;
  outline:none;
  color:#E2E8F0;
  font-size:0.85rem;
  padding:5px 8px;
  flex:1;
  min-width:0;
}
.search-form i{
  color:#94A3B8;
  font-size:0.9rem;
  padding-right:6px;
}
.mobile-menu-btn{
  display:none;
  background:rgba(255,255,255,0.08);
  border:1px solid rgba(255,255,255,0.14);
  border-radius:8px;
  color:#fff;
  width:44px;
  height:44px;
  font-size:1.2rem;
  z-index:110;
}

.hero-section{
  position:relative;
  padding:100px 0;
  background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  min-height:620px;
  display:flex;
  align-items:center;
}
.hero-overlay{
  position:absolute;
  inset:0;
  background:linear-gradient(100deg, rgba(13,27,42,0.92) 0%, rgba(13,27,42,0.72) 50%, rgba(230,57,70,0.25) 100%);
}
.hero-content{
  position:relative;
  z-index:2;
  color:#fff;
  max-width:760px;
}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(230,57,70,0.2);
  border:1px solid rgba(230,57,70,0.5);
  color:#FFD166;
  padding:6px 16px;
  border-radius:40px;
  font-size:0.85rem;
  font-weight:600;
  margin-bottom:22px;
  backdrop-filter:blur(6px);
}
.hero-title{
  font-size:3.2rem;
  line-height:1.2;
  font-weight:800;
  margin-bottom:20px;
  letter-spacing:1px;
  background:linear-gradient(180deg,#FFFFFF 70%,#FFD166 100%);
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
}
.hero-text{
  font-size:1.15rem;
  color:#CBD5E1;
  margin-bottom:34px;
  max-width:560px;
  line-height:1.8;
}
.hero-btn-wrap{
  display:flex;
  gap:16px;
  flex-wrap:wrap;
}
.btn-light{
  background:#fff;
  color:var(--dark-bg);
  padding:14px 36px;
  border-radius:50px;
  font-weight:700;
  font-size:1rem;
  box-shadow:0 8px 28px rgba(0,0,0,0.25);
  transition:var(--transition);
}
.btn-light:hover{
  background:var(--primary);
  color:#fff;
  transform:translateY(-3px);
}
.btn-outline-light{
  background:rgba(255,255,255,0.05);
  border:1px solid rgba(255,255,255,0.35);
  color:#E2E8F0;
  padding:14px 30px;
  border-radius:50px;
  font-weight:500;
  backdrop-filter:blur(4px);
  transition:var(--transition);
}
.btn-outline-light:hover{
  border-color:#fff;
  background:rgba(255,255,255,0.1);
  transform:translateY(-3px);
  color:#fff;
}
.hero-stats{
  display:flex;
  gap:36px;
  margin-top:60px;
}
.hero-stat-item{
  padding:16px 8px;
  border-left:3px solid var(--primary);
  padding-left:18px;
}
.hero-stat-number{
  font-size:2rem;
  font-weight:800;
  color:#fff;
  line-height:1.2;
}
.hero-stat-label{
  font-size:0.88rem;
  color:#94A3B8;
}

.quick-nav-section{
  margin-top:-50px;
  position:relative;
  z-index:5;
}
.quick-nav-card{
  background:#fff;
  border-radius:var(--radius-md);
  box-shadow:var(--shadow-md);
  padding:18px 20px;
  display:flex;
  align-items:center;
  gap:14px;
  transition:var(--transition);
  border:1px solid #F1F5F9;
}
.quick-nav-card:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-lg);
}
.quick-nav-icon{
  width:54px;
  height:54px;
  border-radius:16px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:1.4rem;
  flex-shrink:0;
}
.quick-nav-card h4{
  font-size:1.05rem;
  font-weight:700;
  margin-bottom:2px;
  color:var(--text-main);
}
.quick-nav-card p{
  font-size:0.82rem;
  color:var(--text-muted);
  margin:0;
}

.info-section{
  padding:80px 0;
  background:var(--bg-white);
}
.section-header{
  margin-bottom:48px;
}
.section-tag{
  display:inline-block;
  background:rgba(230,57,70,0.08);
  color:var(--primary);
  font-size:0.82rem;
  font-weight:700;
  padding:6px 16px;
  border-radius:40px;
  letter-spacing:1px;
  margin-bottom:12px;
}
.section-title{
  font-size:2.2rem;
  font-weight:800;
  color:var(--text-main);
  line-height:1.3;
  margin-bottom:12px;
}
.section-desc{
  font-size:1.05rem;
  color:var(--text-muted);
  max-width:640px;
}
.feature-card{
  background:#fff;
  border-radius:var(--radius-md);
  padding:30px;
  border:1px solid #EEF2F7;
  transition:var(--transition);
  height:100%;
}
.feature-card:hover{
  box-shadow:var(--shadow-md);
  border-color:var(--border-color);
  transform:translateY(-4px);
}
.feature-icon{
  width:64px;
  height:64px;
  border-radius:20px;
  background:linear-gradient(135deg, var(--primary) 0%, #FF6B6B 100%);
  display:flex;
  align-items:center;
  justify-content:center;
  color:#fff;
  font-size:1.7rem;
  margin-bottom:20px;
  box-shadow:0 8px 20px rgba(230,57,70,0.25);
}
.feature-card h3{
  font-size:1.2rem;
  font-weight:700;
  margin-bottom:10px;
}
.feature-card p{
  color:var(--text-muted);
  font-size:0.95rem;
  margin-bottom:16px;
}
.feature-link{
  color:var(--primary);
  font-size:0.9rem;
  font-weight:600;
  display:inline-flex;
  align-items:center;
  gap:6px;
}

.classify-section{
  padding:90px 0;
  background:var(--bg-light);
}
.classify-tabs-wrap{
  margin-bottom:40px;
}
.nav-tabs-custom{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
}
.nav-tabs-custom .nav-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:10px 24px;
  border-radius:50px;
  background:#fff;
  border:1px solid var(--border-color);
  color:var(--text-main);
  font-size:0.92rem;
  font-weight:500;
  transition:var(--transition);
}
.nav-tabs-custom .nav-link:hover{
  border-color:var(--primary);
  color:var(--primary);
}
.nav-tabs-custom .nav-link.active{
  background:var(--primary);
  color:#fff;
  border-color:var(--primary);
  box-shadow:0 8px 24px rgba(230,57,70,0.3);
}
.tab-pane-custom{
  display:none;
}
.tab-pane-custom.active{
  display:block;
  animation:fadeUp 0.5s ease;
}
@keyframes fadeUp{
  from{opacity:0; transform:translateY(14px);}
  to{opacity:1; transform:translateY(0);}
}
.category-card{
  background:#fff;
  border-radius:var(--radius-md);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:var(--transition);
  border:1px solid #F1F5F9;
  height:100%;
}
.category-card:hover{
  transform:translateY(-8px);
  box-shadow:var(--shadow-lg);
}
.category-image{
  height:180px;
  position:relative;
  overflow:hidden;
}
.category-image img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform 0.6s ease;
}
.category-card:hover .category-image img{
  transform:scale(1.08);
}
.category-img-overlay{
  position:absolute;
  inset:0;
  background:linear-gradient(to top, rgba(0,0,0,0.5), transparent);
}
.category-badge{
  position:absolute;
  top:14px;
  left:14px;
  background:rgba(230,57,70,0.95);
  color:#fff;
  font-size:0.72rem;
  font-weight:700;
  padding:4px 12px;
  border-radius:30px;
  letter-spacing:0.5px;
}
.category-card-body{
  padding:20px;
}
.category-card-body h4{
  font-size:1.05rem;
  font-weight:700;
  margin-bottom:8px;
}
.category-card-body p{
  font-size:0.88rem;
  color:var(--text-muted);
  margin-bottom:12px;
  line-height:1.6;
}
.category-meta{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:0.78rem;
  color:var(--text-muted);
}
.category-meta i{
  font-size:0.72rem;
}

.latest-section{
  padding:90px 0;
  background:var(--bg-white);
}
.latest-list{
  margin-top:20px;
}
.latest-item{
  display:flex;
  align-items:flex-start;
  gap:20px;
  padding:24px;
  border:1px solid #EDF2F7;
  border-radius:var(--radius-md);
  background:#fff;
  margin-bottom:16px;
  transition:var(--transition);
}
.latest-item:hover{
  box-shadow:var(--shadow-md);
  border-color:var(--border-color);
  transform:translateX(6px);
}
.latest-thumb{
  width:120px;
  height:80px;
  border-radius:12px;
  overflow:hidden;
  flex-shrink:0;
  background:linear-gradient(135deg,#1E293B,#334155);
  position:relative;
}
.latest-thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.latest-content{
  flex:1;
}
.latest-title{
  font-size:1.1rem;
  font-weight:700;
  color:var(--text-main);
  margin-bottom:6px;
  display:-webkit-box;
  -webkit-line-clamp:1;
  line-clamp:1;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.latest-excerpt{
  font-size:0.9rem;
  color:var(--text-muted);
  display:-webkit-box;
  -webkit-line-clamp:1;
  line-clamp:1;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin-bottom:8px;
}
.latest-meta{
  font-size:0.78rem;
  color:#94A3B8;
  display:flex;
  gap:16px;
}

.data-section{
  padding:90px 0;
  background:linear-gradient(135deg, var(--dark-bg) 0%, #16293C 100%);
  position:relative;
  overflow:hidden;
}
.data-section::before{
  content:'';
  position:absolute;
  top:-60px;
  right:-60px;
  width:280px;
  height:280px;
  background:radial-gradient(circle, rgba(230,57,70,0.15), transparent 70%);
  border-radius:50%;
}
.data-section::after{
  content:'';
  position:absolute;
  bottom:-80px;
  left:40px;
  width:200px;
  height:200px;
  background:radial-gradient(circle, rgba(69,123,157,0.15), transparent 70%);
  border-radius:50%;
}
.data-wrap{
  position:relative;
  z-index:2;
}
.data-item{
  text-align:center;
  padding:20px 16px;
  border-radius:var(--radius-sm);
  transition:var(--transition);
}
.data-item:hover{
  background:rgba(255,255,255,0.03);
  transform:translateY(-4px);
}
.data-number{
  font-size:2.6rem;
  font-weight:900;
  color:#fff;
  margin-bottom:6px;
  letter-spacing:1px;
}
.data-label{
  font-size:0.92rem;
  color:#8FA3B8;
}
.step-card{
  text-align:center;
  padding:24px 16px;
  border-radius:var(--radius-md);
  background:rgba(255,255,255,0.03);
  border:1px solid rgba(255,255,255,0.08);
  transition:var(--transition);
}
.step-card:hover{
  background:rgba(255,255,255,0.06);
  transform:translateY(-4px);
}
.step-num{
  font-size:2rem;
  font-weight:900;
  color:var(--primary);
  margin-bottom:10px;
  line-height:1;
}
.step-card h4{
  color:#fff;
  font-size:1.05rem;
  margin-bottom:8px;
}
.step-card p{
  color:#8FA3B8;
  font-size:0.86rem;
  margin:0;
  line-height:1.6;
}

.trend-section{
  padding:90px 0;
  background:var(--bg-light);
}
.trend-card{
  background:#fff;
  border-radius:var(--radius-md);
  padding:26px;
  box-shadow:var(--shadow-sm);
  transition:var(--transition);
  border:1px solid #F1F5F9;
  height:100%;
}
.trend-card:hover{
  box-shadow:var(--shadow-md);
  transform:translateY(-4px);
}
.trend-card-header{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:18px;
}
.trend-card-header i{
  color:var(--primary);
  font-size:1.5rem;
}
.trend-card-header span{
  font-size:0.85rem;
  color:var(--text-muted);
  font-weight:600;
}
.hot-tag-list{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}
.hot-tag-item{
  padding:8px 16px;
  border-radius:30px;
  background:#F8FAFC;
  color:var(--text-main);
  font-size:0.88rem;
  font-weight:500;
  border:1px solid #E2E8F0;
  transition:var(--transition);
}
.hot-tag-item:hover{
  background:var(--primary);
  color:#fff;
  border-color:var(--primary);
}
.hot-tag-item:nth-child(3n+1){
  border-color:rgba(230,57,70,0.3);
}
.hot-tag-item:nth-child(3n+1):hover{
  background:var(--primary);
  color:#fff;
}

.list-style{
  list-style:none;
  padding:0;
  margin:0;
}
.list-style li{
  padding:12px 0;
  border-bottom:1px solid #EEF2F7;
  display:flex;
  align-items:center;
  gap:12px;
  font-size:0.94rem;
}
.list-style li:last-child{
  border-bottom:none;
}
.list-style i{
  color:var(--primary);
  font-size:0.85rem;
  width:18px;
  text-align:left;
  flex-shrink:0;
}
.list-style li:hover{
  color:var(--primary);
}

.faq-section{
  padding:90px 0;
  background:var(--bg-white);
}
.faq-item{
  margin-bottom:14px;
  border:1px solid var(--border-color);
  border-radius:var(--radius-md);
  overflow:hidden;
  transition:var(--transition);
}
.faq-item:hover{
  border-color:#CBD5E1;
  box-shadow:var(--shadow-sm);
}
.faq-question{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:18px 24px;
  cursor:pointer;
  background:#fff;
  font-weight:600;
  font-size:1rem;
  gap:16px;
}
.faq-question i{
  color:var(--primary);
  transition:var(--transition);
  flex-shrink:0;
}
.faq-answer{
  padding:0 24px;
  max-height:0;
  overflow:hidden;
  transition:max-height 0.35s ease, padding 0.3s ease;
}
.faq-item.active .faq-answer{
  padding:0 24px 20px;
  max-height:300px;
  border-top:1px solid #F1F5F9;
}
.faq-item.active .faq-question i{
  transform:rotate(180deg);
}
.faq-answer p{
  color:var(--text-muted);
  font-size:0.93rem;
  margin:14px 0 0;
  line-height:1.75;
}

.cta-section{
  padding:0;
  position:relative;
}
.cta-card{
  background:linear-gradient(135deg, #1E293B 0%, #0D1B2A 50%, var(--primary-dark) 100%);
  border-radius:var(--radius-lg);
  padding:60px 50px;
  overflow:hidden;
  position:relative;
  z-index:1;
}
.cta-card::before{
  content:'';
  position:absolute;
  top:0;
  right:0;
  width:320px;
  height:320px;
  background:radial-gradient(circle, rgba(255,209,102,0.2), transparent 60%);
  border-radius:50%;
  z-index:-1;
}
.cta-title{
  font-size:2rem;
  color:#fff;
  font-weight:800;
  margin-bottom:14px;
  line-height:1.3;
}
.cta-text{
  color:#CBD5E1;
  font-size:1.05rem;
  max-width:560px;
  margin-bottom:30px;
}
.cta-btn{
  background:#fff;
  color:var(--dark-bg);
  padding:14px 36px;
  border-radius:50px;
  font-weight:700;
  display:inline-flex;
  align-items:center;
  gap:10px;
  box-shadow:0 10px 30px rgba(0,0,0,0.3);
  transition:var(--transition);
  border:none;
}
.cta-btn:hover{
  background:var(--primary);
  color:#fff;
  transform:translateY(-4px);
  box-shadow:0 14px 36px rgba(230,57,70,0.4);
}

.footer-main{
  background:var(--dark-navbar);
  padding:60px 0 0;
  color:#94A3B8;
}
.footer-top{
  padding-bottom:40px;
  border-bottom:1px solid rgba(255,255,255,0.06);
}
.footer-brand{
  color:#fff;
  font-size:1.5rem;
  font-weight:700;
  margin-bottom:14px;
  background:linear-gradient(135deg,#FFD166,#FF9F1C);
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
  display:inline-block;
}
.footer-links h5{
  color:#E2E8F0;
  font-size:1rem;
  margin-bottom:16px;
  font-weight:600;
}
.footer-links ul{
  list-style:none;
  margin:0;
  padding:0;
}
.footer-links ul li{
  margin-bottom:10px;
  font-size:0.9rem;
}
.footer-links ul li a{
  color:#94A3B8;
}
.footer-links ul li a:hover{
  color:var(--primary);
}
.footer-bottom{
  padding:24px 0;
  font-size:0.85rem;
  color:#6B7A8F;
  display:flex;
  justify-content:space-between;
  align-items:center;
  flex-wrap:wrap;
  gap:10px;
}

.mobile-menu-overlay{
  display:none;
  position:fixed;
  inset:0;
  background:rgba(0,0,0,0.6);
  z-index:2000;
  opacity:0;
  transition:opacity 0.3s ease;
}
.mobile-menu-overlay.show{
  opacity:1;
}
.mobile-menu{
  position:fixed;
  top:0;
  right:-300px;
  width:280px;
  height:100%;
  background:var(--dark-navbar);
  z-index:2100;
  transition:right 0.4s ease;
  padding:24px;
  overflow-y:auto;
}
.mobile-menu.show{
  right:0;
}
.mobile-menu ul{
  list-style:none;
  margin:30px 0;
  padding:0;
}
.mobile-menu ul li{
  margin-bottom:14px;
}
.mobile-menu ul li a{
  display:block;
  color:#E2E8F0;
  font-size:1.05rem;
  padding:12px 16px;
  border-radius:10px;
  border:1px solid rgba(255,255,255,0.06);
}
.mobile-menu ul li a:hover,
.mobile-menu ul li a.active{
  background:var(--primary);
  color:#fff;
  border-color:var(--primary);
}
.mobile-menu-close{
  position:absolute;
  top:18px;
  right:18px;
  background:transparent;
  border:1px solid rgba(255,255,255,0.2);
  color:#fff;
  width:38px;
  height:38px;
  border-radius:8px;
  font-size:1rem;
}

.bookmark-section{
  padding:80px 0;
  background:var(--bg-light);
}
.bookmark-banner{
  background:url('/assets/images/coverpic/cover-6.png') center/cover no-repeat;
  border-radius:var(--radius-lg);
  padding:50px;
  position:relative;
  overflow:hidden;
}
.mobile-search{
  display:none;
}

@media screen and (max-width:1024px){
  .nav-center{
    display:none;
  }
  .search-toggle{
    display:block;
    background:transparent;
    border:1px solid rgba(255,255,255,0.2);
    color:#E2E8F0;
    padding:10px 16px;
    border-radius:30px;
  }
  .mobile-menu-btn{
    display:flex;
    align-items:center;
    justify-content:center;
  }
  .mobile-search{
    display:block;
    margin-top:20px;
  }
  .search-form{
    width:100%;
  }
  .hero-title{
    font-size:2.6rem;
  }
  .hero-section{
    min-height:auto;
    padding:90px 0;
  }
  .hero-stats{
    flex-wrap:wrap;
    gap:20px;
  }
}

@media screen and (max-width:768px){
  .nav-wrap{
    height:62px;
  }
  .brand-logo{
    font-size:1.15rem;
    gap:6px;
  }
  .brand-logo i{
    font-size:1.3rem;
  }
  .search-form{
    display:none;
  }
  .btn-cta{
    padding:8px 16px;
    font-size:0.85rem;
  }
  .hero-title{
    font-size:2rem;
  }
  .hero-text{
    font-size:1rem;
  }
  .hero-btn-wrap .btn-light,
  .hero-btn-wrap .btn-outline-light{
    padding:12px 24px;
    font-size:0.9rem;
  }
  .section-title{
    font-size:1.6rem;
  }
  .latest-item{
    padding:16px;
    gap:14px;
  }
  .latest-thumb{
    width:84px;
    height:64px;
  }
  .cta-card{
    padding:40px 30px;
  }
  .cta-title{
    font-size:1.5rem;
  }
  .bookmark-banner{
    padding:40px 24px;
  }
  .footer-bottom{
    flex-direction:column;
    text-align:center;
    gap:6px;
  }
}

@media screen and (max-width:520px){
  .container{
    padding:0 16px;
  }
  .brand-logo{
    font-size:1rem;
  }
  .brand-logo i{
    font-size:1.1rem;
  }
  .btn-cta{
    display:none;
  }
  .hero-section{
    background-position:60% center;
  }
  .hero-title{
    font-size:1.65rem;
    letter-spacing:0;
  }
  .hero-text{
    font-size:0.92rem;
    margin-bottom:24px;
  }
  .hero-btn-wrap .btn-light,
  .hero-btn-wrap .btn-outline-light{
    width:100%;
    justify-content:center;
    padding:12px 16px;
    font-size:0.88rem;
  }
  .hero-stats{
    margin-top:36px;
    flex-direction:column;
    gap:12px;
  }
  .section-tag{
    padding:4px 12px;
    font-size:0.75rem;
  }
  .section-title{
    font-size:1.4rem;
    margin-bottom:10px;
  }
  .section-desc{
    font-size:0.9rem;
  }
  .quick-nav-section .columns{
    margin-bottom:10px;
  }
  .nav-tabs-custom{
    gap:8px;
  }
  .nav-tabs-custom .nav-link{
    padding:8px 16px;
    font-size:0.85rem;
  }
  .latest-item{
    flex-direction:column;
  }
  .latest-thumb{
    width:100%;
    height:120px;
  }
  .faq-question{
    padding:14px 16px;
    font-size:0.92rem;
  }
}

/* roulang page: article */
:root {
  --primary: #1e3c72;
  --primary-light: #2a5298;
  --primary-050: #eef2f9;
  --primary-100: #dbe4f0;
  --accent: #f39c12;
  --accent-light: #fdebd0;
  --bg: #f7f8fc;
  --white: #ffffff;
  --dark: #1a2b4a;
  --text: #2d3a4a;
  --text-weak: #7a8ba0;
  --border: #e4e9f0;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 8px 32px rgba(30, 60, 114, 0.10);
  --shadow-sm: 0 4px 16px rgba(30, 60, 114, 0.08);
  --space: 48px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif; background: var(--bg); color: var(--text); line-height: 1.75; }
a { color: var(--primary); text-decoration: none; transition: all 0.25s ease; }
a:hover { color: var(--accent); }
img { max-width: 100%; height: auto; display: block; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; width: 100%; }

.site-header { background: var(--white); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 100; box-shadow: 0 2px 12px rgba(30, 60, 114, 0.06); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 24px; }
.brand-link { font-size: 1.35rem; font-weight: 800; color: var(--primary); display: flex; align-items: center; gap: 10px; letter-spacing: 0.5px; }
.brand-link:hover { color: var(--primary-light); }
.brand-dot { width: 10px; height: 10px; background: var(--accent); border-radius: 50%; display: inline-block; }
.nav-chip { display: flex; list-style: none; gap: 6px; align-items: center; flex-wrap: wrap; }
.nav-chip li a { display: inline-block; padding: 8px 18px; border-radius: 30px; font-size: 0.95rem; font-weight: 500; color: var(--text); background: transparent; border: 1px solid var(--border); transition: all 0.25s ease; }
.nav-chip li a:hover { background: var(--primary-050); border-color: var(--primary-light); color: var(--primary); transform: translateY(-2px); }
.nav-chip li a.active { background: var(--primary); color: #fff; border-color: var(--primary); box-shadow: 0 4px 14px rgba(30, 60, 114, 0.25); }
.header-cta { background: var(--accent); color: #fff; padding: 10px 22px; border-radius: 30px; font-size: 0.92rem; font-weight: 700; display: inline-flex; align-items: center; gap: 8px; transition: all 0.25s ease; box-shadow: 0 4px 14px rgba(243, 156, 18, 0.3); }
.header-cta:hover { background: #e08e0b; color: #fff; transform: translateY(-2px); box-shadow: 0 6px 20px rgba(243, 156, 18, 0.4); }
@media (max-width: 768px) {
  .header-inner { flex-wrap: wrap; height: auto; padding: 16px 0; gap: 16px; }
  .nav-chip { width: 100%; overflow-x: auto; white-space: nowrap; -webkit-overflow-scrolling: touch; padding-bottom: 4px; }
  .nav-chip li a { padding: 6px 14px; font-size: 0.85rem; }
  .header-cta { padding: 8px 18px; font-size: 0.85rem; }
}

.article-banner { position: relative; padding: 90px 0 70px; text-align: center; background-image: linear-gradient(135deg, rgba(22, 42, 84, 0.92) 0%, rgba(30, 60, 114, 0.85) 50%, rgba(42, 82, 152, 0.88) 100%), url('/assets/images/backpic/back-1.png'); background-size: cover; background-position: center; color: #fff; }
.article-banner .container { position: relative; z-index: 2; max-width: 900px; }
.banner-crumbs { font-size: 0.85rem; color: rgba(255,255,255,0.8); margin-bottom: 16px; letter-spacing: 0.5px; }
.banner-crumbs a { color: rgba(255,255,255,0.9); border-bottom: 1px solid rgba(255,255,255,0.3); padding-bottom: 2px; }
.banner-crumbs a:hover { color: var(--accent); border-color: var(--accent); }
.article-banner h1 { font-size: clamp(1.6rem, 3.5vw, 2.6rem); font-weight: 800; line-height: 1.35; max-width: 820px; margin: 0 auto 18px; text-shadow: 0 2px 16px rgba(0,0,0,0.25); }
.banner-meta { display: flex; justify-content: center; gap: 20px; flex-wrap: wrap; font-size: 0.92rem; color: rgba(255,255,255,0.85); }
.banner-meta span { display: inline-flex; align-items: center; gap: 6px; }
.banner-meta i { color: var(--accent); }
.badge-cat { background: rgba(243, 156, 18, 0.9); color: #fff; padding: 4px 16px; border-radius: 30px; font-size: 0.82rem; font-weight: 600; margin-right: 12px; }

.article-main { padding: 60px 0; }
.article-grid { display: flex; gap: 32px; align-items: flex-start; }
.article-content-wrap { flex: 1 1 78%; min-width: 0; background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow); padding: 40px; border: 1px solid var(--border); }
.article-sidebar { flex: 1 1 22%; min-width: 260px; position: sticky; top: 90px; }
@media (max-width: 992px) { .article-grid { flex-direction: column; } .article-sidebar { position: static; width: 100%; } }

.article-body { font-size: 1.03rem; line-height: 2; color: var(--text); }
.article-body h2 { font-size: 1.45rem; color: var(--dark); margin: 32px 0 16px; padding-left: 14px; border-left: 4px solid var(--accent); }
.article-body h3 { font-size: 1.2rem; color: var(--dark); margin: 24px 0 12px; }
.article-body p { margin-bottom: 18px; }
.article-body img { border-radius: 12px; margin: 24px 0; box-shadow: var(--shadow-sm); width: 100%; }
.article-body blockquote { background: var(--primary-050); border-left: 4px solid var(--primary); padding: 18px 24px; margin: 24px 0; border-radius: 0 var(--radius-sm) var(--radius-sm) 0; color: var(--primary-light); font-style: italic; }
.article-body ul, .article-body ol { margin: 16px 0 20px; padding-left: 26px; }
.article-body li { margin-bottom: 8px; }
.article-body a { color: var(--primary); border-bottom: 1px dashed var(--primary-light); }
.article-body a:hover { color: var(--accent); border-color: var(--accent); }

.article-tags { display: flex; flex-wrap: wrap; gap: 10px; margin: 36px 0 0; padding-top: 24px; border-top: 1px solid var(--border); }
.article-tags .tag { background: var(--primary-050); color: var(--primary); padding: 6px 16px; border-radius: 30px; font-size: 0.85rem; font-weight: 500; transition: all 0.25s; }
.article-tags .tag:hover { background: var(--primary); color: #fff; transform: translateY(-2px); }

.sidebar-card { background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow-sm); border: 1px solid var(--border); padding: 28px; margin-bottom: 24px; }
.sidebar-card h5 { font-size: 1.05rem; font-weight: 700; color: var(--dark); margin-bottom: 18px; display: flex; align-items: center; gap: 8px; }
.sidebar-card h5 i { color: var(--accent); }
.sidebar-card ul { list-style: none; margin: 0; }
.sidebar-card ul li { border-bottom: 1px dashed var(--border); padding: 10px 0; }
.sidebar-card ul li:last-child { border-bottom: none; }
.sidebar-card ul li a { font-size: 0.92rem; color: var(--text); display: block; transition: all 0.2s; }
.sidebar-card ul li a:hover { color: var(--accent); padding-left: 6px; }
.sidebar-rank li { display: flex; align-items: center; gap: 10px; }
.sidebar-rank .rank-num { width: 26px; height: 26px; border-radius: 8px; background: var(--primary-050); color: var(--primary); font-size: 0.78rem; font-weight: 700; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.sidebar-rank li:first-child .rank-num { background: var(--accent); color: #fff; }
.cta-card { background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%); color: #fff; text-align: center; padding: 32px 24px; border-radius: var(--radius); margin-top: 24px; }
.cta-card h4 { font-size: 1.15rem; margin-bottom: 10px; }
.cta-card p { font-size: 0.9rem; opacity: 0.9; margin-bottom: 20px; }
.cta-card .btn-white { background: var(--accent); color: #fff; padding: 10px 24px; border-radius: 30px; font-weight: 600; font-size: 0.92rem; display: inline-block; transition: all 0.25s; }
.cta-card .btn-white:hover { background: #e08e0b; transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0,0,0,0.2); }

.not-found-wrap { text-align: center; padding: 80px 20px; }
.not-found-icon { font-size: 4rem; color: var(--border); margin-bottom: 24px; }
.not-found-wrap h2 { font-size: 1.6rem; color: var(--dark); margin-bottom: 16px; }
.not-found-wrap p { color: var(--text-weak); margin-bottom: 28px; }

.related-section { padding: 60px 0 80px; }
.related-section .section-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 32px; flex-wrap: wrap; gap: 12px; }
.related-section .section-header h2 { font-size: 1.6rem; font-weight: 800; color: var(--dark); display: flex; align-items: center; gap: 10px; }
.related-section .section-header h2::after { content: ''; flex: 1; height: 2px; background: linear-gradient(90deg, var(--accent), transparent); border-radius: 2px; min-width: 40px; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
@media (max-width: 992px) { .related-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .related-grid { grid-template-columns: 1fr; } }
.related-card { background: var(--white); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm); border: 1px solid var(--border); transition: all 0.3s ease; display: flex; flex-direction: column; }
.related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.related-card-img { height: 180px; overflow: hidden; position: relative; }
.related-card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.related-card:hover .related-card-img img { transform: scale(1.05); }
.related-card-body { padding: 22px 20px; display: flex; flex-direction: column; flex: 1; background: var(--white); }
.related-card-body h3 { font-size: 1rem; line-height: 1.5; font-weight: 700; margin-bottom: 10px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.related-card-body p { font-size: 0.88rem; color: var(--text-weak); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 16px; line-height: 1.6; flex: 1; }
.related-card-meta { display: flex; justify-content: space-between; align-items: center; font-size: 0.82rem; color: var(--text-weak); border-top: 1px solid var(--border); padding-top: 14px; }

.faq-section { padding: 60px 0 80px; background: var(--white); border-top: 1px solid var(--border); }
.faq-header { text-align: center; margin-bottom: 44px; }
.faq-header h2 { font-size: 1.8rem; font-weight: 800; color: var(--dark); }
.faq-header p { color: var(--text-weak); font-size: 0.98rem; max-width: 560px; margin: 12px auto 0; }
.faq-list { max-width: 880px; margin: 0 auto; }
.faq-item { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-sm); margin-bottom: 14px; overflow: hidden; transition: all 0.3s ease; }
.faq-item:hover { border-color: var(--primary-light); box-shadow: var(--shadow-sm); }
.faq-q { width: 100%; background: none; border: none; padding: 20px 24px; font-size: 1rem; font-weight: 600; color: var(--dark); display: flex; justify-content: space-between; align-items: center; cursor: pointer; transition: all 0.3s; text-align: left; }
.faq-q:hover { color: var(--primary); }
.faq-q .faq-icon { width: 26px; height: 26px; border-radius: 50%; background: var(--primary-050); display: flex; align-items: center; justify-content: center; font-size: 0.75rem; color: var(--primary); transition: all 0.3s; flex-shrink: 0; margin-left: 12px; }
.faq-item.open .faq-icon { background: var(--accent); color: #fff; transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; padding: 0 24px; transition: max-height 0.4s ease, padding 0.3s ease; }
.faq-item.open .faq-a { max-height: 400px; }
.faq-a p { padding: 0 0 20px; color: var(--text-weak); font-size: 0.93rem; line-height: 1.8; }

.site-cta { padding: 70px 0; background-image: linear-gradient(135deg, rgba(26, 43, 74, 0.95), rgba(30, 60, 114, 0.9)), url('/assets/images/backpic/back-2.png'); background-size: cover; background-position: center; background-attachment: fixed; color: #fff; text-align: center; }
.site-cta h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); font-weight: 800; margin-bottom: 18px; }
.site-cta p { font-size: 1rem; max-width: 640px; margin: 0 auto 32px; opacity: 0.9; }
.site-cta .btn { display: inline-flex; align-items: center; gap: 10px; background: var(--accent); color: #fff; padding: 14px 36px; border-radius: 50px; font-weight: 700; font-size: 1rem; transition: all 0.3s ease; box-shadow: 0 8px 26px rgba(243, 156, 18, 0.4); }
.site-cta .btn:hover { background: #e08e0b; transform: translateY(-3px); box-shadow: 0 12px 32px rgba(243, 156, 18, 0.5); }

.footer-main { background: var(--dark); color: rgba(255,255,255,0.85); padding: 64px 0 0; }
.footer-top { padding-bottom: 40px; }
.footer-brand { font-size: 1.35rem; font-weight: 800; color: #fff; display: block; margin-bottom: 12px; }
.footer-brand i { color: var(--accent); margin-right: 8px; }
.footer-links h5 { color: #fff; font-size: 0.98rem; font-weight: 600; margin-bottom: 18px; display: flex; align-items: center; gap: 8px; }
.footer-links ul { list-style: none; margin: 0; }
.footer-links li { margin-bottom: 10px; font-size: 0.9rem; color: rgba(255,255,255,0.6); }
.footer-links a { color: rgba(255,255,255,0.7); font-size: 0.9rem; transition: all 0.25s; }
.footer-links a:hover { color: var(--accent); padding-left: 6px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding: 22px 0; font-size: 0.84rem; color: rgba(255,255,255,0.45); display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; }

@media (max-width: 768px) {
  :root { --space: 36px; }
  .article-content-wrap { padding: 24px 18px; }
  .article-body { font-size: 1rem; line-height: 1.9; }
  .footer-top { flex-direction: column; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
:root {
  --primary: #2b5df4;
  --primary-dark: #1a3fb5;
  --primary-soft: #edf2ff;
  --accent: #ffb800;
  --accent-soft: #fff6df;
  --dark: #0c1730;
  --text: #1d2740;
  --muted: #64708a;
  --bg: #f5f7fb;
  --white: #ffffff;
  --border: #e4eaf3;
  --line: #eef2f7;
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --shadow-sm: 0 4px 14px rgba(23, 43, 99, 0.06);
  --shadow: 0 14px 34px rgba(23, 43, 99, 0.09);
  --shadow-lg: 0 34px 70px rgba(23, 43, 99, 0.14);
  --section-pad: 90px;
  --font: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}
/* ===== Reset / Base ===== */
*,
*::before,
*::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: color .2s ease; }
ul, ol { list-style: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
input:focus, textarea:focus, button:focus { outline: 2px solid rgba(43, 93, 244, .35); outline-offset: 2px; }
.main-container { max-width: 1200px; margin: 0 auto; padding: 0 26px; }
/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all .25s ease;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 8px 22px rgba(43, 93, 244, 0.3);
}
.btn-primary:hover {
  background: var(--primary-dark);
  box-shadow: 0 12px 30px rgba(43, 93, 244, 0.38);
  transform: translateY(-2px);
}
.btn-primary:active { transform: translateY(0); box-shadow: 0 4px 12px rgba(43, 93, 244, .25); }
.btn-outline {
  background: transparent;
  color: var(--primary);
  border-color: rgba(43, 93, 244, .4);
}
.btn-outline:hover {
  background: var(--primary-soft);
  border-color: var(--primary);
  transform: translateY(-2px);
}
.btn-outline-light {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,.6);
}
.btn-outline-light:hover {
  background: rgba(255,255,255,.14);
  border-color: #fff;
}
.btn-sm { padding: 10px 20px; font-size: .87rem; }
.btn-lg { padding: 16px 38px; font-size: 1.02rem; }
/* ===== 徽章/标签 ===== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: .2px;
  background: var(--primary-soft);
  color: var(--primary);
}
.badge-accent { background: var(--accent-soft); color: #b76e00; }
.badge-green { background: #e8f8f0; color: #0a8a5e; }
.badge-dark { background: rgba(255,255,255,.16); color: #fff; backdrop-filter: blur(4px); }
.badge i { font-size: .7rem; }
.count-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: var(--bg);
  padding: 5px 12px;
  border-radius: 999px;
  font-size: .78rem;
  color: var(--muted);
  font-weight: 500;
}
.count-badge i { color: var(--primary); font-size: .75rem; }
.count-badge.highlight { background: var(--accent-soft); color: #9a6b00; }
/* ===== Header / 分段导航 ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 16px 0;
  flex-wrap: wrap;
}
.brand-logo {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: .4px;
  color: var(--dark);
  white-space: nowrap;
  background: linear-gradient(135deg, var(--primary), #6a5af9);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.nav-segment {
  display: flex;
  align-items: center;
  gap: 6px;
  background: #f0f3fa;
  padding: 5px;
  border-radius: 999px;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}
.nav-segment::-webkit-scrollbar { display: none; }
.seg-item {
  padding: 9px 24px;
  border-radius: 999px;
  font-size: .9rem;
  font-weight: 600;
  color: var(--muted);
  white-space: nowrap;
  transition: all .25s ease;
}
.seg-item:hover { color: var(--primary); background: rgba(43, 93, 244, .07); }
.seg-item.active {
  background: var(--white);
  color: var(--primary);
  box-shadow: 0 4px 12px rgba(23, 43, 99, 0.1);
}
.header-cta { white-space: nowrap; }
/* ===== Hero ===== */
.category-hero {
  position: relative;
  padding: 120px 0 140px;
  background-size: cover;
  background-position: center;
  color: #fff;
  isolation: isolate;
  overflow: hidden;
}
.category-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(8, 22, 52, 0.92) 10%, rgba(8, 22, 52, 0.62) 48%, rgba(8, 22, 52, 0.35) 80%);
  z-index: -1;
}
.hero-content { max-width: 720px; }
.hero-kicker {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 22px;
}
.hero-kicker .line {
  width: 44px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}
.hero-title {
  font-size: clamp(2.2rem, 4vw, 3.6rem);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: .5px;
  margin-bottom: 24px;
}
.hero-title span {
  color: var(--accent);
}
.hero-desc {
  font-size: 1.08rem;
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.86);
  max-width: 620px;
  margin-bottom: 36px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 56px;
  max-width: 560px;
}
.metric-card {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  backdrop-filter: blur(6px);
}
.metric-num {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.2;
}
.metric-label {
  font-size: .83rem;
  color: rgba(255, 255, 255, .75);
  margin-top: 4px;
}
/* ===== Section 通用 ===== */
.section { padding: var(--section-pad) 0; }
.section-alt { background: var(--white); }
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}
.section-head .subtitle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary);
  font-weight: 600;
  font-size: .85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 10px;
}
.section-title {
  font-size: clamp(1.9rem, 3vw, 2.6rem);
  font-weight: 800;
  line-height: 1.3;
  color: var(--dark);
  letter-spacing: .3px;
}
.section-desc {
  color: var(--muted);
  font-size: 1rem;
  max-width: 420px;
  margin-top: 10px;
}
/* ===== 简介板块 ===== */
.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.intro-media { position: relative; border-radius: var(--radius-xl); overflow: hidden; box-shadow: var(--shadow-lg); }
.intro-media img { width: 100%; height: 420px; object-fit: cover; transition: transform .6s ease; }
.intro-media:hover img { transform: scale(1.04); }
.intro-media .float-card {
  position: absolute;
  bottom: 22px;
  left: 22px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-md);
  padding: 16px 22px;
  display: flex;
  gap: 20px;
  box-shadow: var(--shadow);
}
.float-item .f-num { font-size: 1.3rem; font-weight: 800; color: var(--primary); }
.float-item .f-label { font-size: .78rem; color: var(--muted); }
.intro-copy h3 { font-size: 1.8rem; font-weight: 800; margin-bottom: 20px; color: var(--dark); line-height: 1.4; }
.intro-copy p { color: var(--muted); margin-bottom: 18px; line-height: 1.9; }
.intro-list { margin-top: 24px; display: grid; gap: 14px; }
.intro-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: .95rem;
  color: var(--text);
}
.intro-list li i {
  color: var(--primary);
  background: var(--primary-soft);
  width: 26px;
  height: 26px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: .75rem;
  flex-shrink: 0;
  margin-top: 3px;
}
/* ===== 指南卡片 ===== */
.guide-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 26px;
}
.guide-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: all .3s ease;
  display: flex;
  flex-direction: column;
}
.guide-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.guide-card .card-img {
  position: relative;
  height: 180px;
  overflow: hidden;
}
.guide-card .card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.guide-card:hover .card-img img { transform: scale(1.07); }
.card-img .badge {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(6px);
  box-shadow: var(--shadow-sm);
}
.card-body { padding: 22px 22px 24px; display: flex; flex-direction: column; flex: 1; }
.card-body h3 { font-size: 1.12rem; font-weight: 700; line-height: 1.5; margin-bottom: 10px; color: var(--dark); }
.card-body p { font-size: .88rem; color: var(--muted); line-height: 1.7; flex: 1; }
.card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}
.meta-item { display: flex; align-items: center; gap: 6px; font-size: .8rem; color: var(--muted); }
.meta-item i { font-size: .75rem; color: var(--primary); }
/* ===== 话题排行 ===== */
.topic-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 40px;
  align-items: stretch;
}
.rank-panel {
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: 36px 38px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}
.rank-list { display: grid; gap: 10px; }
.rank-item {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 16px 18px;
  border-radius: var(--radius-md);
  background: var(--bg);
  transition: all .25s ease;
}
.rank-item:hover {
  background: var(--primary-soft);
  transform: translateX(6px);
}
.rank-num {
  font-size: 1.25rem;
  font-weight: 800;
  color: #b9c3d8;
  width: 34px;
  text-align: center;
  font-style: italic;
}
.rank-item:nth-child(1) .rank-num { color: var(--accent); }
.rank-item:nth-child(2) .rank-num { color: #8a9cc0; }
.rank-item:nth-child(3) .rank-num { color: #bd8957; }
.rank-info { flex: 1; }
.rank-title { font-weight: 600; font-size: .95rem; color: var(--text); margin-bottom: 2px; }
.rank-sub { font-size: .8rem; color: var(--muted); }
.rank-count {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .8rem;
  color: var(--muted);
  background: var(--white);
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  white-space: nowrap;
}
/* 讨论卡片 */
.discuss-panel {
  background: linear-gradient(150deg, var(--dark), #142552);
  border-radius: var(--radius-xl);
  padding: 36px;
  color: #fff;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}
.discuss-panel::after {
  content: "";
  position: absolute;
  right: -40px;
  bottom: -40px;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: rgba(255, 184, 0, 0.14);
}
.discuss-panel h3 { font-size: 1.3rem; font-weight: 700; margin-bottom: 8px; }
.discuss-panel > p { font-size: .9rem; color: rgba(255,255,255,.6); margin-bottom: 24px; }
.avatar-stack { display: flex; align-items: center; margin-bottom: 22px; }
.avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: .9rem;
  font-weight: 600;
  border: 2px solid rgba(255,255,255,.4);
  margin-right: -10px;
  transition: transform .2s ease;
  cursor: default;
}
.avatar:hover { transform: translateY(-4px); z-index: 2; }
.avatar-more {
  background: rgba(255,255,255,.2);
  border: 2px solid rgba(255,255,255,.3);
  font-size: .72rem;
}
.discuss-input {
  display: flex;
  gap: 10px;
  margin-top: auto;
  background: rgba(255,255,255,.12);
  border-radius: 999px;
  padding: 6px 6px 6px 18px;
  align-items: center;
}
.discuss-input input {
  flex: 1;
  background: transparent;
  border: none;
  color: #fff;
  font-size: .86rem;
  min-width: 0;
}
.discuss-input input::placeholder { color: rgba(255,255,255,.5); }
.discuss-input input:focus { outline: none; }
.discuss-btn {
  background: var(--accent);
  color: var(--dark);
  border: none;
  border-radius: 999px;
  padding: 9px 20px;
  font-weight: 700;
  font-size: .82rem;
  cursor: pointer;
  transition: all .2s ease;
  white-space: nowrap;
}
.discuss-btn:hover { background: #ffca3a; transform: scale(1.04); }
.tip-strip {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, 0.1);
  border-left: 3px solid var(--accent);
  border-radius: 8px;
  padding: 12px 16px;
  font-size: .82rem;
  color: rgba(255,255,255,.78);
  margin-top: 18px;
}
.tip-strip i { color: var(--accent); font-size: .8rem; }
/* ===== 步骤时间线 ===== */
.steps-section {
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  position: relative;
  isolation: isolate;
  color: #fff;
}
.steps-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(7, 18, 45, 0.86);
  z-index: -1;
}
.steps-section .section-title { color: #fff; }
.steps-section .section-desc { color: rgba(255,255,255,.7); }
.steps-section .subtitle { color: var(--accent); }
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.step-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  padding: 32px 26px;
  backdrop-filter: blur(6px);
  transition: all .3s ease;
  position: relative;
}
.step-card:hover {
  background: rgba(255, 255, 255, 0.12);
  transform: translateY(-6px);
  border-color: rgba(255, 184, 0, .3);
}
.step-no {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--accent);
  background: rgba(255, 184, 0, .14);
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.step-card h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 10px; }
.step-card p { font-size: .86rem; color: rgba(255,255,255,.66); line-height: 1.75; }
.step-arrow {
  position: absolute;
  right: -18px;
  top: 42%;
  color: rgba(255,255,255,.25);
  font-size: .8rem;
  z-index: 2;
}
.step-card:last-child .step-arrow { display: none; }
/* ===== 标签分区 ===== */
.tags-panel {
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: 48px 50px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}
.sport-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 16px;
}
.tag-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 24px;
  border-radius: 999px;
  background: var(--bg);
  border: 1px solid var(--border);
  font-size: .9rem;
  font-weight: 600;
  color: var(--text);
  transition: all .25s ease;
  cursor: pointer;
}
.tag-pill i { font-size: .9rem; color: var(--primary); transition: color .2s; }
.tag-pill:hover {
  background: var(--primary-soft);
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-3px);
  box-shadow: 0 8px 18px rgba(43, 93, 244, .12);
}
.tag-pill .count { font-size: .75rem; color: var(--muted); font-weight: 500; }
.tag-pill:hover .count { color: var(--primary); }
.tags-hint {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .84rem;
  color: var(--muted);
  padding-top: 20px;
  border-top: 1px dashed var(--border);
}
.tags-hint i { color: var(--accent); }
/* ===== FAQ ===== */
.faq-wrap { max-width: 860px; margin: 0 auto; }
.faq-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  margin-bottom: 18px;
  overflow: hidden;
  transition: all .3s ease;
}
.faq-item:hover { box-shadow: var(--shadow-sm); border-color: #d5def0; }
.faq-q {
  padding: 24px 30px;
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--dark);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.faq-q i {
  color: var(--primary);
  font-size: .9rem;
  transition: transform .3s ease;
}
.faq-item.open .faq-q i { transform: rotate(45deg); }
.faq-a {
  padding: 0 30px 24px;
  color: var(--muted);
  font-size: .92rem;
  line-height: 1.9;
  display: none;
}
.faq-item.open .faq-a { display: block; }
/* ===== CTA ===== */
.cta-section { padding: 60px 0 100px; }
.cta-box {
  background: linear-gradient(120deg, var(--primary), #4c6ef5 55%, #6a5af9);
  border-radius: var(--radius-xl);
  padding: 64px 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.cta-box::before {
  content: "";
  position: absolute;
  right: -60px;
  top: -60px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
}
.cta-box::after {
  content: "";
  position: absolute;
  right: 40px;
  bottom: -80px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
}
.cta-copy { max-width: 560px; }
.cta-copy h2 { font-size: clamp(1.7rem, 2.6vw, 2.4rem); font-weight: 800; line-height: 1.4; margin-bottom: 14px; }
.cta-copy p { color: rgba(255, 255, 255, 0.78); font-size: 1rem; line-height: 1.8; }
.cta-actions { display: flex; gap: 14px; flex-wrap: wrap; position: relative; z-index: 2; }
/* ===== Footer ===== */
.footer-main {
  background: #0b1528;
  color: rgba(255, 255, 255, 0.72);
  padding: 64px 0 0;
  font-size: .92rem;
}
.footer-top {
  padding-bottom: 44px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.footer-brand {
  font-size: 1.35rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: .5px;
  display: block;
  margin-bottom: 14px;
  background: linear-gradient(135deg, #fff, #b9ccff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.footer-links h5 {
  color: #fff;
  font-size: .95rem;
  font-weight: 700;
  margin-bottom: 18px;
  letter-spacing: .5px;
}
.footer-links ul li { margin-bottom: 12px; }
.footer-links a {
  color: rgba(255, 255, 255, 0.65);
  font-size: .88rem;
  transition: all .2s ease;
}
.footer-links a:hover { color: #fff; padding-left: 4px; }
.footer-bottom {
  padding: 22px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-size: .82rem;
  color: rgba(255, 255, 255, 0.4);
}
/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  :root { --section-pad: 70px; }
  .guide-grid { grid-template-columns: repeat(2, 1fr); gap: 22px; }
  .steps-grid { grid-template-columns: repeat(2, 1fr); gap: 18px; }
  .step-arrow { display: none; }
  .topic-grid { grid-template-columns: 1fr; }
  .intro-grid { grid-template-columns: 1fr; gap: 40px; }
  .cta-box { padding: 48px 42px; }
}
@media (max-width: 768px) {
  :root { --section-pad: 56px; }
  .main-container { padding: 0 18px; }
  .header-inner { flex-wrap: wrap; gap: 14px; }
  .nav-segment { order: 3; width: 100%; justify-content: flex-start; padding: 4px; }
  .seg-item { flex-shrink: 0; padding: 8px 18px; font-size: .85rem; }
  .header-cta { font-size: .85rem; padding: 10px 18px; }
  .category-hero { padding: 90px 0 110px; }
  .hero-metrics { grid-template-columns: repeat(3, 1fr); gap: 10px; }
  .metric-card { padding: 14px 12px; }
  .metric-num { font-size: 1.4rem; }
  .guide-grid { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: 1fr; }
  .rank-panel { padding: 24px 20px; }
  .rank-item { flex-wrap: wrap; gap: 12px; padding: 14px; }
  .rank-count { margin-left: auto; }
  .tags-panel { padding: 32px 24px; }
  .tag-pill { padding: 12px 18px; font-size: .83rem; }
  .faq-q { padding: 18px 20px; font-size: .95rem; }
  .faq-a { padding: 0 20px 20px; }
  .cta-box { padding: 40px 26px; flex-direction: column; text-align: center; }
  .cta-actions { justify-content: center; }
  .footer-top .cell { margin-bottom: 26px; }
  .step-card { margin-bottom: 6px; }
}
@media (max-width: 520px) {
  :root { --section-pad: 46px; }
  .brand-logo { font-size: 1.12rem; }
  .nav-segment { overflow-x: auto; }
  .hero-title { font-size: 1.9rem; }
  .hero-actions .btn { width: 100%; }
  .hero-metrics { grid-template-columns: 1fr; }
  .guide-grid { grid-template-columns: 1fr; }
  .intro-media img { height: 280px; }
  .float-card { position: static; margin-top: 10px; width: 100%; }
  .rank-item { flex-direction: column; align-items: flex-start; }
  .rank-count { margin-left: 0; }
  .section-head { flex-direction: column; align-items: flex-start; }
  .discuss-input { flex-direction: column; background: transparent; padding: 0; }
  .discuss-btn { width: 100%; justify-content: center; }
  .discuss-input input {
    background: rgba(255, 255, 255, .12);
    border-radius: 999px;
    padding: 12px 18px;
  }
  .btn-lg { padding: 14px 30px; }
}