/* roulang page: index */
:root{
  --primary:#4f46e5;
  --primary-dark:#4338ca;
  --secondary:#0ea5e9;
  --accent:#06b6d4;
  --ink:#0f172a;
  --muted:#64748b;
  --light:#f8fafc;
  --bg:#f6f7fb;
  --card:#ffffff;
  --border:#e2e8f0;
  --radius-lg:20px;
  --radius-md:14px;
  --radius-sm:10px;
  --shadow-sm:0 4px 16px rgba(15,23,42,.06);
  --shadow-md:0 10px 30px rgba(15,23,42,.08);
  --shadow-lg:0 20px 50px rgba(15,23,42,.12);
  --transition:.25s cubic-bezier(.4,0,.2,1);
  --font:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--ink);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color var(--transition)}
button{font-family:inherit;cursor:pointer;border:0}
input,textarea{font-family:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.skip-link{
  position:fixed;top:-60px;left:16px;z-index:9999;
  background:var(--primary);color:#fff;padding:10px 18px;border-radius:8px;
  transition:top .3s;
}
.skip-link:focus{top:12px}
.section{padding:88px 0}
.section-head{
  text-align:center;
  max-width:680px;
  margin:0 auto 48px;
}
.section-tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:.8rem;
  font-weight:700;
  letter-spacing:.06em;
  color:var(--primary);
  background:rgba(79,70,229,.08);
  border:1px solid rgba(79,70,229,.16);
  padding:6px 16px;
  border-radius:999px;
  margin-bottom:16px;
}
.section-head h2{
  font-size:2.35rem;
  font-weight:800;
  line-height:1.25;
  letter-spacing:-.02em;
  margin-bottom:12px;
  color:var(--ink);
}
.section-head p{
  font-size:1.05rem;
  color:var(--muted);
}
.grid{display:grid;gap:24px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 30px;
  border-radius:999px;
  font-size:.95rem;
  font-weight:700;
  line-height:1;
  border:2px solid transparent;
  transition:all var(--transition);
  cursor:pointer;
  white-space:nowrap;
}
.btn i{font-size:.95rem}
.btn-primary{
  background:var(--primary);
  color:#fff;
  box-shadow:0 8px 24px rgba(79,70,229,.28);
}
.btn-primary:hover{
  background:var(--primary-dark);
  transform:translateY(-2px);
  box-shadow:0 12px 32px rgba(79,70,229,.36);
}
.btn-primary:active{transform:translateY(0)}
.btn-light{
  background:#fff;
  color:var(--ink);
  box-shadow:0 8px 24px rgba(15,23,42,.12);
}
.btn-light:hover{
  transform:translateY(-2px);
  box-shadow:0 12px 32px rgba(15,23,42,.16);
}
.btn-outline-light{
  background:transparent;
  color:#fff;
  border-color:rgba(255,255,255,.65);
  backdrop-filter:blur(4px);
}
.btn-outline-light:hover{
  background:rgba(255,255,255,.12);
  border-color:#fff;
  transform:translateY(-2px);
}
.btn-white{
  background:#fff;
  color:var(--primary);
}
.btn-white:hover{
  background:var(--light);
  transform:translateY(-2px);
  box-shadow:0 8px 24px rgba(15,23,42,.14);
}

/* ===== 浮动 Dock 导航 ===== */
.site-header{
  position:fixed;
  top:14px;
  left:0;
  right:0;
  z-index:999;
  padding:0 16px;
  pointer-events:none;
}
.site-header .dock{
  max-width:1180px;
  margin:0 auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  background:rgba(255,255,255,.86);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border:1px solid rgba(255,255,255,.65);
  border-radius:999px;
  padding:10px 12px 10px 26px;
  box-shadow:0 10px 36px rgba(15,23,42,.09);
  pointer-events:auto;
  transition:box-shadow var(--transition);
}
.site-header .dock:hover{
  box-shadow:0 14px 42px rgba(15,23,42,.12);
}
.brand{
  display:inline-flex;
  align-items:baseline;
  gap:2px;
  font-size:1.3rem;
  font-weight:900;
  color:var(--ink);
  letter-spacing:-.02em;
}
.brand span{
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:4px;
}
.main-nav a{
  padding:9px 18px;
  border-radius:999px;
  font-size:.92rem;
  font-weight:600;
  color:var(--muted);
  transition:all var(--transition);
}
.main-nav a:hover{
  color:var(--ink);
  background:rgba(15,23,42,.05);
}
.main-nav a.active{
  color:var(--primary);
  background:rgba(79,70,229,.09);
}
.dock-cta{
  padding:11px 22px;
  font-size:.88rem;
}
.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  border-radius:50%;
  align-items:center;
  justify-content:center;
  background:var(--light);
  color:var(--ink);
  font-size:1.1rem;
  transition:background var(--transition);
}
.nav-toggle:hover{background:var(--border)}
.mobile-menu{
  display:none;
  max-width:1180px;
  margin:10px auto 0;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(16px);
  border:1px solid rgba(255,255,255,.65);
  border-radius:20px;
  padding:18px 22px;
  box-shadow:0 14px 42px rgba(15,23,42,.12);
  pointer-events:auto;
}
.mobile-menu a{
  display:block;
  padding:13px 16px;
  border-radius:12px;
  font-weight:600;
  color:var(--muted);
  transition:all var(--transition);
}
.mobile-menu a:hover{
  background:var(--light);
  color:var(--ink);
}
.mobile-menu a.active{
  background:rgba(79,70,229,.09);
  color:var(--primary);
}
.mobile-menu .mobile-cta{
  margin-top:12px;
  text-align:center;
}

/* ===== Hero ===== */
.hero{
  position:relative;
  background:
    linear-gradient(135deg,rgba(15,23,42,.82),rgba(79,70,229,.68)),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color:#fff;
  padding:180px 0 110px;
  overflow:hidden;
}
.hero::after{
  content:"";
  position:absolute;
  bottom:-80px;
  right:-80px;
  width:360px;
  height:360px;
  background:radial-gradient(circle,rgba(14,165,233,.35),transparent 68%);
  border-radius:50%;
}
.hero .container{position:relative;z-index:2}
.hero-content{
  max-width:820px;
  margin:0 auto;
  text-align:center;
}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.22);
  backdrop-filter:blur(8px);
  color:#fff;
  font-size:.85rem;
  font-weight:600;
  padding:8px 20px;
  border-radius:999px;
  margin-bottom:28px;
}
.hero-badge .dot{
  width:8px;height:8px;
  background:#34d399;
  border-radius:50%;
  box-shadow:0 0 0 4px rgba(52,211,153,.2);
}
.hero h1{
  font-size:4.2rem;
  font-weight:900;
  line-height:1.1;
  letter-spacing:-.03em;
  margin-bottom:20px;
  text-shadow:0 4px 30px rgba(0,0,0,.25);
}
.hero p{
  font-size:1.2rem;
  line-height:1.8;
  color:rgba(255,255,255,.9);
  max-width:620px;
  margin:0 auto 36px;
}
.hero-actions{
  display:flex;
  gap:16px;
  justify-content:center;
  flex-wrap:wrap;
  margin-bottom:52px;
}
.hero-stats{
  display:flex;
  justify-content:center;
  gap:8px;
}
.hero-stats div{
  flex:1;
  max-width:180px;
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.16);
  backdrop-filter:blur(8px);
  padding:22px 18px;
  border-radius:16px;
  text-align:center;
  transition:transform var(--transition),background var(--transition);
}
.hero-stats div:hover{
  transform:translateY(-4px);
  background:rgba(255,255,255,.16);
}
.hero-stats strong{
  display:block;
  font-size:2rem;
  font-weight:900;
  background:linear-gradient(135deg,#fff,#a5b4fc);
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
}
.hero-stats span{
  font-size:.85rem;
  color:rgba(255,255,255,.78);
}

/* ===== 更新条 ===== */
.ticker{
  background:#fff;
  border-bottom:1px solid var(--border);
  padding:14px 0;
  overflow:hidden;
}
.ticker-inner{
  display:flex;
  align-items:center;
  gap:18px;
}
.ticker-label{
  flex-shrink:0;
  display:inline-flex;
  align-items:center;
  gap:6px;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  color:#fff;
  font-size:.78rem;
  font-weight:800;
  padding:6px 14px;
  border-radius:999px;
  letter-spacing:.05em;
}
.ticker-track{
  display:flex;
  gap:48px;
  white-space:nowrap;
  animation:ticker 26s linear infinite;
}
.ticker-track span{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:.9rem;
  color:var(--muted);
}
.ticker-track span i{
  color:var(--secondary);
  font-size:.6rem;
}
@keyframes ticker{
  0%{transform:translateX(0)}
  100%{transform:translateX(-50%)}
}

/* ===== 核心卡片 ===== */
.core-section{background:var(--bg)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.core-card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:32px 26px;
  text-align:left;
  transition:all var(--transition);
  position:relative;
  overflow:hidden;
}
.core-card::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:4px;
  background:linear-gradient(90deg,var(--primary),var(--secondary));
  opacity:0;
  transition:opacity var(--transition);
}
.core-card:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-md);
  border-color:transparent;
}
.core-card:hover::before{opacity:1}
.core-card .icon{
  width:56px;
  height:56px;
  border-radius:14px;
  background:linear-gradient(135deg,rgba(79,70,229,.1),rgba(14,165,233,.1));
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:1.4rem;
  color:var(--primary);
  margin-bottom:22px;
  transition:transform var(--transition);
}
.core-card:hover .icon{transform:scale(1.08)}
.core-card h3{
  font-size:1.15rem;
  font-weight:800;
  margin-bottom:10px;
}
.core-card p{
  font-size:.92rem;
  color:var(--muted);
  line-height:1.7;
}

/* ===== 分类入口 ===== */
.categories-section{
  background:#fff;
  border-top:1px solid var(--border);
}
.category-card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  overflow:hidden;
  transition:all var(--transition);
  display:block;
}
.category-card:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-md);
  border-color:transparent;
}
.category-card .cover{
  position:relative;
  height:200px;
  overflow:hidden;
}
.category-card .cover::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(15,23,42,.28));
}
.category-card .cover img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.category-card:hover .cover img{transform:scale(1.06)}
.category-card .info{
  padding:24px;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  background:rgba(79,70,229,.08);
  border:1px solid rgba(79,70,229,.14);
  color:var(--primary);
  font-size:.78rem;
  font-weight:700;
  padding:4px 12px;
  border-radius:999px;
  margin-bottom:12px;
}
.badge.alt{
  background:rgba(14,165,233,.08);
  border-color:rgba(14,165,233,.14);
  color:#0284c7;
}
.category-card h3{
  font-size:1.3rem;
  font-weight:800;
  margin-bottom:8px;
}
.category-card .info p{
  font-size:.92rem;
  color:var(--muted);
  line-height:1.7;
  margin-bottom:18px;
}
.link-more{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:.88rem;
  font-weight:700;
  color:var(--primary);
  transition:gap var(--transition);
}
.category-card:hover .link-more{gap:12px}

/* ===== 内容区：热门 + 最新 ===== */
.content-section{background:var(--bg)}
.content-grid{
  display:grid;
  grid-template-columns:1fr 1.2fr;
  gap:32px;
  align-items:start;
}
.hot-panel,.latest-panel{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:32px;
  box-shadow:var(--shadow-sm);
}
.panel-head{
  margin-bottom:26px;
  padding-bottom:18px;
  border-bottom:1px solid var(--border);
}
.panel-head .section-tag{margin-bottom:8px}
.panel-head h2{
  font-size:1.55rem;
  font-weight:800;
  letter-spacing:-.01em;
}
.hot-list{
  list-style:none;
  counter-reset:hot;
}
.hot-list li{
  counter-increment:hot;
  padding:16px 0;
  border-bottom:1px dashed var(--border);
}
.hot-list li:last-child{border-bottom:0}
.hot-list a{
  display:flex;
  align-items:center;
  gap:16px;
  font-size:.95rem;
  color:var(--ink);
  font-weight:600;
  transition:color var(--transition);
}
.hot-list a::before{
  content:counter(hot,decimal-leading-zero);
  font-size:1.35rem;
  font-weight:900;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
  font-style:italic;
  min-width:34px;
}
.hot-list a:hover{color:var(--primary)}
.hot-list small{
  display:block;
  font-size:.8rem;
  color:var(--muted);
  font-weight:400;
  margin-top:2px;
}

.cms-list{
  display:flex;
  flex-direction:column;
  gap:16px;
}
.cms-item{
  display:block;
  background:var(--light);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  padding:20px;
  transition:all var(--transition);
}
.cms-item:hover{
  background:#fff;
  border-color:rgba(79,70,229,.25);
  box-shadow:var(--shadow-sm);
  transform:translateX(4px);
}
.cms-meta{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:8px;
}
.cms-meta .badge{margin-bottom:0}
.cms-meta time{
  font-size:.8rem;
  color:var(--muted);
}
.cms-item h3{
  font-size:1.02rem;
  font-weight:700;
  line-height:1.45;
  margin-bottom:6px;
  color:var(--ink);
}
.cms-item p{
  font-size:.88rem;
  color:var(--muted);
  line-height:1.6;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin-bottom:10px;
}
.cms-more{
  font-size:.82rem;
  font-weight:700;
  color:var(--primary);
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.cms-item:hover .cms-more{gap:10px}
.empty-tip{
  text-align:center;
  color:var(--muted);
  padding:40px 20px;
  background:var(--light);
  border-radius:var(--radius-md);
  border:1px dashed var(--border);
  font-size:.95rem;
}

/* ===== 横向专题 ===== */
.topics-section{
  background:#fff;
  border-top:1px solid var(--border);
  overflow:hidden;
}
.topics-scroll{
  display:flex;
  gap:20px;
  overflow-x:auto;
  padding:4px 4px 20px;
  scroll-snap-type:x mandatory;
  -webkit-overflow-scrolling:touch;
}
.topics-scroll::-webkit-scrollbar{height:8px}
.topics-scroll::-webkit-scrollbar-track{background:var(--light);border-radius:999px}
.topics-scroll::-webkit-scrollbar-thumb{background:var(--border);border-radius:999px}
.topic-card{
  flex:0 0 300px;
  scroll-snap-align:start;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  overflow:hidden;
  transition:all var(--transition);
  display:block;
}
.topic-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-md);
}
.topic-card .thumb{
  height:160px;
  overflow:hidden;
  position:relative;
}
.topic-card .thumb img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .5s ease;
}
.topic-card:hover .thumb img{transform:scale(1.05)}
.topic-card .topic-body{
  padding:20px;
}
.topic-card .topic-body .tag{
  font-size:.75rem;
  font-weight:700;
  color:var(--secondary);
  background:rgba(14,165,233,.08);
  padding:4px 10px;
  border-radius:999px;
  display:inline-block;
  margin-bottom:10px;
}
.topic-card .topic-body h3{
  font-size:1rem;
  font-weight:700;
  line-height:1.5;
  margin-bottom:6px;
}
.topic-card .topic-body p{
  font-size:.85rem;
  color:var(--muted);
  line-height:1.6;
}

/* ===== 流程 ===== */
.process-section{
  background:linear-gradient(135deg,#0f172a,#1e1b4b);
  color:#fff;
  position:relative;
  overflow:hidden;
}
.process-section::before{
  content:"";
  position:absolute;
  top:-120px;left:50%;
  transform:translateX(-50%);
  width:600px;height:600px;
  background:radial-gradient(circle,rgba(79,70,229,.4),transparent 65%);
  border-radius:50%;
}
.process-section .section-head h2{color:#fff}
.process-section .section-head p{color:rgba(255,255,255,.65)}
.process-section .container{position:relative;z-index:2}
.process-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.process-step{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);
  backdrop-filter:blur(8px);
  border-radius:var(--radius-lg);
  padding:32px 28px;
  text-align:center;
  position:relative;
  transition:all var(--transition);
}
.process-step:hover{
  background:rgba(255,255,255,.1);
  transform:translateY(-4px);
}
.process-step .num{
  font-size:2.6rem;
  font-weight:900;
  background:linear-gradient(135deg,#fff,#a5b4fc);
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
  opacity:.9;
  line-height:1;
  margin-bottom:16px;
}
.process-step .icon{
  font-size:1.5rem;
  color:#a5b4fc;
  margin-bottom:12px;
}
.process-step h3{
  font-size:1.05rem;
  font-weight:800;
  margin-bottom:10px;
}
.process-step p{
  font-size:.85rem;
  color:rgba(255,255,255,.65);
  line-height:1.65;
}

/* ===== FAQ ===== */
.faq-section{background:var(--bg)}
.faq-list{
  max-width:820px;
  margin:0 auto;
  display:flex;
  flex-direction:column;
  gap:16px;
}
.faq-item{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  overflow:hidden;
  transition:all var(--transition);
}
.faq-item:hover{
  border-color:rgba(79,70,229,.25);
  box-shadow:var(--shadow-sm);
}
.faq-item details{border:0}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:20px 24px;
  font-size:1rem;
  font-weight:700;
  color:var(--ink);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"\f078";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  font-size:.85rem;
  color:var(--muted);
  flex-shrink:0;
  transition:transform var(--transition);
}
.faq-item details[open] summary::after{
  transform:rotate(180deg);
  color:var(--primary);
}
.faq-item .faq-body{
  padding:0 24px 20px;
  font-size:.92rem;
  color:var(--muted);
  line-height:1.75;
}

/* ===== CTA ===== */
.cta-section{
  padding:96px 0;
  background:
    linear-gradient(120deg,rgba(79,70,229,.92),rgba(14,165,233,.88)),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat fixed;
  color:#fff;
}
.cta-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:40px;
  flex-wrap:wrap;
}
.cta-inner h2{
  font-size:2.1rem;
  font-weight:900;
  line-height:1.3;
  margin-bottom:10px;
}
.cta-inner p{
  color:rgba(255,255,255,.85);
  font-size:1.05rem;
}

/* ===== 页脚 ===== */
.site-footer{
  background:#0f172a;
  color:rgba(255,255,255,.7);
  padding:70px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1.2fr;
  gap:48px;
  padding-bottom:48px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.footer-brand .brand{
  color:#fff;
  font-size:1.4rem;
  margin-bottom:16px;
}
.footer-brand p{
  font-size:.9rem;
  line-height:1.8;
  color:rgba(255,255,255,.55);
  max-width:280px;
}
.footer-links h4,
.footer-contact h4{
  color:#fff;
  font-size:.95rem;
  font-weight:800;
  margin-bottom:18px;
}
.footer-links a{
  display:block;
  font-size:.88rem;
  color:rgba(255,255,255,.55);
  padding:6px 0;
  transition:color var(--transition),padding-left var(--transition);
}
.footer-links a:hover{
  color:#fff;
  padding-left:6px;
}
.footer-contact p{
  font-size:.88rem;
  line-height:2;
  color:rgba(255,255,255,.55);
}
.footer-contact a{
  color:var(--secondary);
}
.footer-bottom{
  padding:24px 0;
  text-align:center;
  font-size:.85rem;
  color:rgba(255,255,255,.38);
}

/* ===== 响应式 ===== */
@media(max-width:1024px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .content-grid{grid-template-columns:1fr}
  .process-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .hero h1{font-size:3.2rem}
  .section{padding:72px 0}
}
@media(max-width:768px){
  .site-header .dock{
    padding-left:20px;
  }
  .main-nav,.dock-cta{display:none}
  .nav-toggle{display:flex}
  .site-header .dock{
    justify-content:space-between;
  }
  .mobile-menu.open{display:block}
  .hero{padding:150px 0 80px}
  .hero h1{font-size:2.6rem}
  .hero p{font-size:1.05rem}
  .hero-stats{
    flex-wrap:wrap;
    gap:12px;
  }
  .hero-stats div{
    max-width:calc(50% - 6px);
    flex:1 1 calc(50% - 6px);
  }
  .grid-3{grid-template-columns:1fr}
  .content-grid{gap:24px}
  .hot-panel,.latest-panel{padding:24px}
  .topic-card{flex-basis:260px}
  .section-head h2{font-size:1.7rem}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .footer-grid{grid-template-columns:1fr;gap:36px}
}
@media(max-width:520px){
  .container{padding:0 18px}
  .section{padding:58px 0}
  .grid-4,.grid-2,.process-grid{grid-template-columns:1fr}
  .hero h1{font-size:2.1rem}
  .hero-actions .btn{width:100%}
  .hero-stats div{
    max-width:100%;
    flex:1 1 100%;
  }
  .ticker-track{
    animation-duration:40s;
  }
  .section-head h2{font-size:1.45rem}
  .category-card .cover{height:170px}
  .topic-card{flex-basis:230px}
  .faq-item summary{font-size:.95rem;padding:18px 18px}
  .faq-item .faq-body{padding:0 18px 18px}
}

/* roulang page: category1 */
:root {
  --color-primary: #3b82f6;
  --color-primary-dark: #1d4ed8;
  --color-primary-light: #dbeafe;
  --color-accent: #8b5cf6;
  --color-warm: #f59e0b;
  --color-success: #10b981;
  --color-bg: #f1f5f9;
  --color-surface: #ffffff;
  --color-text: #0f172a;
  --color-text-light: #64748b;
  --color-border: #e2e8f0;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, .06);
  --shadow-md: 0 8px 28px rgba(15, 23, 42, .08);
  --shadow-lg: 0 18px 44px rgba(15, 23, 42, .12);
  --spacing-section: 88px;
  --font-sans: "PingFang SC", "Microsoft YaHei", -apple-system, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --transition: .25s cubic-bezier(.4, 0, .2, 1);
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
  border: 0;
}
a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover {
  color: var(--color-primary-dark);
}
a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 3px solid rgba(59, 130, 246, .4);
  outline-offset: 2px;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
section {
  position: relative;
}

/* ========== 按钮 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 24px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.4;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
  white-space: nowrap;
}
.btn i {
  font-size: 13px;
}
.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(59, 130, 246, .3);
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(59, 130, 246, .38);
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(59, 130, 246, .3);
}
.btn-outline {
  background: transparent;
  border-color: rgba(255, 255, 255, .6);
  color: #fff;
}
.btn-outline:hover {
  background: rgba(255, 255, 255, .12);
  color: #fff;
  border-color: #fff;
  transform: translateY(-2px);
}
.btn-ghost {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text);
}
.btn-ghost:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-light);
  transform: translateY(-2px);
}

/* ========== 标签徽章 ========== */
.badge {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  letter-spacing: .5px;
}

/* ========== 浮动Dock导航 ========== */
.site-header {
  position: sticky;
  top: 16px;
  z-index: 999;
  padding: 0 16px;
}
.nav-dock {
  max-width: 1120px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 24px;
  background: rgba(255, 255, 255, .88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, .7);
  border-radius: 999px;
  padding: 10px 18px 10px 24px;
  box-shadow: 0 10px 36px rgba(15, 23, 42, .1);
}
.brand {
  font-size: 22px;
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.5px;
  line-height: 1;
  display: flex;
  align-items: center;
  gap: 2px;
  white-space: nowrap;
}
.brand span {
  color: var(--color-primary);
  font-weight: 700;
}
.brand:hover {
  color: var(--color-text);
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 0 auto;
}
.main-nav a {
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-light);
  line-height: 1.3;
  transition: all var(--transition);
}
.main-nav a:hover {
  color: var(--color-primary);
  background: var(--color-primary-light);
}
.main-nav a.active {
  color: #fff;
  background: var(--color-primary);
  box-shadow: 0 4px 14px rgba(59, 130, 246, .35);
}
.nav-cta {
  font-size: 13px;
  padding: 8px 20px;
}
.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-text);
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  padding: 6px 8px;
  border-radius: 8px;
}
.menu-toggle:hover {
  background: var(--color-bg);
}

/* ========== Hero ========== */
.page-hero {
  background: linear-gradient(135deg, rgba(15, 23, 42, .92), rgba(37, 99, 235, .78)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  padding: 96px 0 80px;
  margin-top: -16px;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.page-hero::after {
  content: '';
  position: absolute;
  right: -10%;
  bottom: -40%;
  width: 520px;
  height: 520px;
  background: radial-gradient(circle, rgba(139, 92, 246, .35), transparent 65%);
  pointer-events: none;
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(255, 255, 255, .75);
  margin-bottom: 28px;
}
.breadcrumb a {
  color: rgba(255, 255, 255, .85);
  transition: color var(--transition);
}
.breadcrumb a:hover {
  color: #fff;
}
.breadcrumb i {
  font-size: 10px;
  color: rgba(255, 255, 255, .5);
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, .14);
  border: 1px solid rgba(255, 255, 255, .25);
  border-radius: 999px;
  padding: 7px 18px;
  font-size: 13px;
  font-weight: 600;
  color: #fff;
  backdrop-filter: blur(8px);
}
.hero-title {
  font-size: 44px;
  font-weight: 800;
  line-height: 1.25;
  margin: 24px 0 16px;
  letter-spacing: -1px;
}
.hero-desc {
  font-size: 17px;
  color: rgba(255, 255, 255, .85);
  max-width: 620px;
  margin-bottom: 36px;
  line-height: 1.8;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 44px;
}
.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  border-top: 1px solid rgba(255, 255, 255, .16);
  padding-top: 32px;
}
.stat-item {
  margin-right: 48px;
}
.stat-item:last-child {
  margin-right: 0;
}
.stat-num {
  font-size: 28px;
  font-weight: 800;
  line-height: 1.2;
  display: flex;
  align-items: baseline;
  gap: 4px;
}
.stat-num small {
  font-size: 14px;
  font-weight: 500;
  color: rgba(255, 255, 255, .65);
}
.stat-label {
  font-size: 13px;
  color: rgba(255, 255, 255, .6);
  margin-top: 4px;
}

/* ========== 通用板块 ========== */
.section {
  padding: var(--spacing-section) 0;
}
.section-alt {
  background: var(--color-surface);
}
.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 52px;
}
.section-head .badge {
  margin-bottom: 14px;
}
.section-title {
  font-size: 34px;
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.5px;
  color: var(--color-text);
}
.section-sub {
  font-size: 16px;
  color: var(--color-text-light);
  margin-top: 12px;
  line-height: 1.7;
}

/* ========== 标签筛选 ========== */
.tag-filter-wrap {
  padding: 32px 0 8px;
}
.tag-filter {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}
.tag-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 22px;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-light);
  cursor: pointer;
  transition: all var(--transition);
}
.tag-btn i {
  font-size: 12px;
}
.tag-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-light);
  transform: translateY(-2px);
}
.tag-btn.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
  box-shadow: 0 6px 18px rgba(59, 130, 246, .3);
}

/* ========== 教程卡片 ========== */
.tutorial-grid {
  margin-top: 36px;
}
.tutorial-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
  margin-bottom: 28px;
}
.tutorial-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.card-cover {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  background: #eef2f7;
}
.card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .6s cubic-bezier(.4, 0, .2, 1);
}
.tutorial-card:hover .card-cover img {
  transform: scale(1.06);
}
.card-cover::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(15, 23, 42, 0) 55%, rgba(15, 23, 42, .28));
  pointer-events: none;
}
.card-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  padding: 5px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  background: rgba(255, 255, 255, .9);
  color: var(--color-primary-dark);
  backdrop-filter: blur(8px);
  box-shadow: 0 2px 8px rgba(15, 23, 42, .08);
}
.card-body {
  padding: 22px 24px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.card-body h3 {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.45;
  margin-bottom: 10px;
}
.card-body h3 a {
  color: var(--color-text);
  transition: color var(--transition);
}
.card-body h3 a:hover {
  color: var(--color-primary);
}
.card-body p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.65;
  margin-bottom: 18px;
  flex: 1;
}
.card-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 12px;
  color: var(--color-text-light);
  border-top: 1px solid var(--color-border);
  padding-top: 14px;
}
.card-meta span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.card-meta i {
  font-size: 13px;
  color: var(--color-primary);
}

/* ========== 学习路径 ========== */
.path-section {
  background: var(--color-surface);
}
.path-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  counter-reset: path-step;
}
.path-step {
  position: relative;
  background: var(--color-bg);
  border-radius: var(--radius-md);
  padding: 28px 20px 24px;
  border: 1px solid var(--color-border);
  transition: all var(--transition);
  text-align: center;
}
.path-step:hover {
  background: var(--color-primary-light);
  border-color: var(--color-primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: var(--color-primary);
  color: #fff;
  font-size: 18px;
  font-weight: 800;
  margin-bottom: 16px;
  box-shadow: 0 6px 16px rgba(59, 130, 246, .3);
}
.path-step h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
}
.path-step p {
  font-size: 13px;
  color: var(--color-text-light);
  line-height: 1.6;
}
.path-step::after {
  content: '';
  position: absolute;
  top: 50%;
  right: -16px;
  width: 12px;
  height: 2px;
  background: var(--color-primary);
  opacity: .3;
}
.path-step:last-child::after {
  display: none;
}

/* ========== 热门榜单 ========== */
.hot-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.hot-list {
  list-style: none;
}
.hot-item {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 18px 0;
  border-bottom: 1px solid var(--color-border);
  transition: all var(--transition);
}
.hot-item:last-child {
  border-bottom: none;
}
.hot-item:hover {
  padding-left: 10px;
}
.hot-rank {
  flex: 0 0 auto;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--color-bg);
  color: var(--color-text-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 800;
}
.hot-rank.rank-1 {
  background: linear-gradient(135deg, #f59e0b, #f97316);
  color: #fff;
}
.hot-rank.rank-2 {
  background: linear-gradient(135deg, #94a3b8, #64748b);
  color: #fff;
}
.hot-rank.rank-3 {
  background: linear-gradient(135deg, #b45309, #92400e);
  color: #fff;
}
.hot-info h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.5;
  transition: color var(--transition);
}
.hot-item:hover .hot-info h4 {
  color: var(--color-primary);
}
.hot-info p {
  font-size: 12px;
  color: var(--color-text-light);
  margin-top: 4px;
}
.hot-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.hot-image img {
  width: 100%;
  height: 380px;
  object-fit: cover;
}
.hot-image-content {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(15, 23, 42, .85));
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 32px;
}
.hot-image-content h3 {
  color: #fff;
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
  line-height: 1.4;
}
.hot-image-content p {
  color: rgba(255, 255, 255, .75);
  font-size: 14px;
  margin-bottom: 16px;
}
.hot-image-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #fff;
  font-size: 14px;
  font-weight: 600;
}
.hot-image-link:hover {
  color: #93c5fd;
}

/* ========== FAQ ========== */
.faq-wrap {
  max-width: 760px;
  margin: 0 auto;
}
.accordion-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  overflow: hidden;
  transition: box-shadow var(--transition);
}
.accordion-item:hover {
  box-shadow: var(--shadow-md);
}
.accordion-item.is-active {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}
.accordion-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text);
  cursor: pointer;
  transition: color var(--transition);
}
.accordion-title:hover {
  color: var(--color-primary);
}
.accordion-title::after {
  content: '';
  display: block;
  width: 12px;
  height: 12px;
  border-right: 2px solid var(--color-text-light);
  border-bottom: 2px solid var(--color-text-light);
  transform: rotate(45deg);
  transition: all var(--transition);
  flex-shrink: 0;
  margin-left: 12px;
  border-radius: 1px;
}
.accordion-item.is-active .accordion-title::after {
  transform: rotate(225deg);
  border-color: var(--color-primary);
}
.accordion-content {
  padding: 0 24px 22px;
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.75;
}

/* ========== CTA ========== */
.cta-section {
  padding: 0 0 var(--spacing-section);
}
.cta-box {
  background: linear-gradient(120deg, rgba(124, 58, 237, .92), rgba(59, 130, 246, .88)), url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  border-radius: var(--radius-lg);
  padding: 68px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  color: #fff;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}
.cta-box::after {
  content: '';
  position: absolute;
  top: -30%;
  right: -10%;
  width: 380px;
  height: 380px;
  background: radial-gradient(circle, rgba(255, 255, 255, .18), transparent 60%);
  pointer-events: none;
}
.cta-info h2 {
  font-size: 30px;
  font-weight: 800;
  line-height: 1.35;
  margin-bottom: 12px;
}
.cta-info p {
  font-size: 15px;
  color: rgba(255, 255, 255, .85);
  max-width: 440px;
}
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  flex-shrink: 0;
}

/* ========== 页脚 ========== */
.site-footer {
  background: #0f172a;
  color: rgba(255, 255, 255, .7);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}
.footer-brand .brand {
  color: #fff;
  font-size: 22px;
  margin-bottom: 16px;
}
.footer-brand .brand span {
  color: #60a5fa;
}
.footer-brand p {
  font-size: 14px;
  color: rgba(255, 255, 255, .55);
  line-height: 1.8;
  max-width: 300px;
}
.footer-links h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 18px;
}
.footer-links a {
  display: block;
  color: rgba(255, 255, 255, .6);
  font-size: 14px;
  padding: 5px 0;
  transition: all var(--transition);
}
.footer-links a:hover {
  color: #60a5fa;
  padding-left: 6px;
}
.footer-contact h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 18px;
}
.footer-contact p {
  font-size: 14px;
  color: rgba(255, 255, 255, .6);
  margin-bottom: 8px;
}
.footer-bottom {
  padding: 24px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, .4);
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .path-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }
  .path-step::after {
    display: none;
  }
  .footer-grid {
    grid-template-columns: 1.2fr 1fr 1fr;
  }
  .footer-contact {
    grid-column: span 3;
  }
  .cta-box {
    padding: 48px 32px;
    flex-direction: column;
    text-align: center;
  }
  .cta-actions {
    justify-content: center;
  }
}
@media (max-width: 768px) {
  body {
    font-size: 15px;
  }
  .site-header {
    top: 8px;
    padding: 0 12px;
  }
  .nav-dock {
    padding: 8px 14px;
    gap: 12px;
  }
  .main-nav {
    display: none;
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, .97);
    backdrop-filter: blur(16px);
    border-radius: 20px;
    padding: 16px;
    flex-direction: column;
    align-items: stretch;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border);
  }
  .main-nav.open {
    display: flex;
  }
  .main-nav a {
    padding: 12px 16px;
    border-radius: 12px;
    text-align: center;
    font-size: 15px;
  }
  .nav-cta {
    display: none;
  }
  .menu-toggle {
    display: inline-flex;
  }
  .page-hero {
    padding: 72px 0 56px;
  }
  .hero-title {
    font-size: 32px;
  }
  .hero-desc {
    font-size: 15px;
  }
  .hero-stats {
    gap: 20px;
  }
  .stat-item {
    margin-right: 0;
  }
  .section {
    padding: 60px 0;
  }
  .section-title {
    font-size: 26px;
  }
  .tutorial-grid {
    margin-top: 24px;
  }
  .hot-wrap {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .hot-image img {
    height: 280px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .footer-contact {
    grid-column: span 2;
  }
}
@media (max-width: 520px) {
  .path-grid {
    grid-template-columns: 1fr 1fr;
  }
  .path-step {
    padding: 20px 14px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-contact {
    grid-column: span 1;
  }
  .footer-links {
    margin-top: 8px;
  }
  .cta-box {
    padding: 40px 20px;
  }
  .cta-info h2 {
    font-size: 23px;
  }
  .cta-actions .btn {
    width: 100%;
  }
  .hero-title {
    font-size: 26px;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .tag-btn {
    padding: 7px 14px;
    font-size: 12px;
  }
  .card-body {
    padding: 18px 16px 20px;
  }
  .card-body h3 {
    font-size: 16px;
  }
}

/* roulang page: article */
:root{
  --primary:#3b5bfd;--primary-dark:#1e3fae;--primary-light:#eef2ff;
  --accent:#f59e0b;--accent-light:#fef3c7;
  --dark:#0f172a;--dark-800:#1e293b;--dark-700:#334155;
  --text:#1e293b;--text-body:#475569;--text-weak:#94a3b8;
  --bg:#f4f6fb;--bg-card:#ffffff;--bg-soft:#eef1f6;
  --border:#e2e8f0;--border-light:#f1f5f9;
  --radius-xs:6px;--radius-sm:10px;--radius:16px;--radius-lg:24px;
  --shadow-sm:0 1px 3px rgba(15,23,42,.06);
  --shadow:0 6px 24px rgba(15,23,42,.08);
  --shadow-lg:0 20px 48px rgba(15,23,42,.13);
  --transition:all .28s ease;
}
*,*::before,*::after{box-sizing:border-box}
body{
  margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background:var(--bg);color:var(--text);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none;transition:var(--transition)}
a:hover{color:var(--primary-dark)}
h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.3;color:var(--dark);margin-top:0}
p{margin:0 0 1rem}
.container,.grid-container{width:100%;max-width:1220px;margin-left:auto;margin-right:auto;padding-left:20px;padding-right:20px}
.site-header{position:sticky;top:14px;z-index:1000;padding:0 20px;margin-top:14px}
.header-inner{
  position:relative;max-width:1180px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:20px;
  background:rgba(255,255,255,.86);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  border:1px solid rgba(226,232,240,.7);border-radius:22px;box-shadow:var(--shadow);
  padding:12px 24px;
}
.brand{font-size:1.45rem;font-weight:800;color:var(--dark);letter-spacing:-.5px;line-height:1}
.brand span{color:var(--primary)}
.main-nav{display:flex;align-items:center;gap:2px}
.main-nav a{
  padding:9px 16px;border-radius:12px;font-size:.92rem;font-weight:600;color:var(--text-body);
  transition:var(--transition);
}
.main-nav a:hover{color:var(--primary);background:var(--primary-light)}
.main-nav a.active{color:var(--primary);background:var(--primary-light)}
.header-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--border);background:#fff;color:var(--text);
  align-items:center;justify-content:center;cursor:pointer;font-size:1.1rem;transition:var(--transition);
}
.nav-toggle:hover{background:var(--primary-light);color:var(--primary);border-color:var(--primary)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 24px;border-radius:12px;
  font-weight:600;font-size:.92rem;line-height:1.5;border:1px solid transparent;cursor:pointer;transition:var(--transition);
}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);color:#fff;box-shadow:0 10px 24px rgba(59,91,253,.35)}
.btn-outline{background:transparent;border-color:var(--border);color:var(--text)}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-light)}
.btn-light{background:#fff;color:var(--primary)}
.btn-light:hover{background:#f2f5ff;color:var(--primary-dark);box-shadow:0 10px 24px rgba(0,0,0,.18)}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.7);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff}
.btn-sm{padding:8px 16px;font-size:.85rem;border-radius:10px}
.btn-block{width:100%;display:flex}
.badge{display:inline-flex;align-items:center;padding:5px 14px;border-radius:999px;font-size:.8rem;font-weight:600;line-height:1.4}
.badge-primary{background:var(--primary);color:#fff}
.badge-ghost{background:rgba(255,255,255,.18);color:#fff;border:1px solid rgba(255,255,255,.28)}
.article-hero{
  position:relative;padding:76px 0 68px;margin-top:12px;color:#fff;isolation:isolate;overflow:hidden;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
}
.article-hero::before{
  content:'';position:absolute;inset:0;z-index:-1;
  background:linear-gradient(120deg,rgba(15,23,42,.94) 0%,rgba(30,58,138,.82) 60%,rgba(59,91,253,.68) 100%);
}
.article-hero::after{
  content:'';position:absolute;right:-80px;top:-80px;width:360px;height:360px;border-radius:50%;
  background:rgba(255,255,255,.06);z-index:-1;
}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:.85rem;color:rgba(255,255,255,.65);margin-bottom:24px}
.breadcrumb a{color:rgba(255,255,255,.78)}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{color:rgba(255,255,255,.38)}
.article-hero-content{max-width:820px}
.article-hero-content h1{font-size:2.5rem;line-height:1.25;color:#fff;margin:16px 0 14px;letter-spacing:-.5px}
.hero-desc{font-size:1.05rem;color:rgba(255,255,255,.85);margin-bottom:22px;max-width:680px}
.hero-meta{display:flex;align-items:center;flex-wrap:wrap;gap:18px;font-size:.88rem;color:rgba(255,255,255,.75)}
.hero-meta span{display:inline-flex;align-items:center;gap:7px}
.hero-meta i{color:rgba(255,255,255,.55)}
.article-hero-error{padding:90px 0;text-align:center}
.article-hero-error h1{font-size:2.4rem;margin-bottom:8px}
.article-hero-error p{color:rgba(255,255,255,.8);max-width:520px;margin:0 auto}
.article-main{padding:46px 0 58px}
.article-grid{align-items:stretch}
.article-card{
  background:var(--bg-card);border-radius:var(--radius-lg);border:1px solid var(--border-light);
  box-shadow:var(--shadow-sm);padding:38px 42px 32px;
}
.article-meta-bar{
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:14px;
  padding-bottom:22px;margin-bottom:26px;border-bottom:1px solid var(--border-light);
}
.meta-left{display:flex;align-items:center;flex-wrap:wrap;gap:16px;font-size:.88rem;color:var(--text-weak)}
.meta-item{display:inline-flex;align-items:center;gap:6px}
.copy-link{border-radius:999px;font-size:.82rem}
.article-body{color:var(--text-body);font-size:1.02rem;line-height:1.9}
.article-body h2{font-size:1.55rem;margin:2.2rem 0 1rem;padding-left:14px;border-left:4px solid var(--primary);border-radius:2px}
.article-body h3{font-size:1.25rem;margin:1.8rem 0 .8rem;color:var(--dark)}
.article-body p{margin-bottom:1.35rem}
.article-body a{color:var(--primary);border-bottom:1px solid rgba(59,91,253,.3)}
.article-body a:hover{border-bottom-color:var(--primary)}
.article-body img{border-radius:var(--radius);margin:1.6rem 0;box-shadow:var(--shadow);width:100%}
.article-body blockquote{
  border-left:4px solid var(--primary);background:var(--primary-light);padding:18px 22px;
  border-radius:0 var(--radius) var(--radius) 0;margin:1.6rem 0;color:var(--dark-700);font-size:.98rem;
}
.article-body ul,.article-body ol{padding-left:1.5rem;margin-bottom:1.4rem}
.article-body li{margin-bottom:.5rem}
.article-body code{
  background:var(--bg-soft);padding:2px 8px;border-radius:6px;font-size:.9em;color:var(--primary-dark);
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
}
.article-body pre{background:var(--dark);color:#e2e8f0;padding:20px;border-radius:var(--radius);overflow-x:auto;margin:1.6rem 0}
.article-body pre code{background:transparent;color:inherit;padding:0}
.article-tags{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin-top:30px;padding-top:22px;
  border-top:1px solid var(--border-light);
}
.tag-label{font-size:.88rem;color:var(--text-weak);display:inline-flex;align-items:center;gap:6px;margin-right:4px}
.tag{
  background:var(--bg-soft);color:var(--dark-700);padding:5px 14px;border-radius:999px;font-size:.82rem;
  font-weight:500;transition:var(--transition);
}
.tag:hover{background:var(--primary-light);color:var(--primary)}
.article-footer{
  margin-top:26px;padding:18px 20px;background:var(--bg-soft);border-radius:var(--radius);
  font-size:.88rem;color:var(--text-weak);display:flex;align-items:center;gap:10px;
}
.sidebar{display:flex;flex-direction:column;gap:22px;position:sticky;top:100px}
.sidebar-card{
  background:#fff;border-radius:var(--radius);border:1px solid var(--border-light);box-shadow:var(--shadow-sm);
  padding:24px;
}
.sidebar-card h3{font-size:1rem;margin-bottom:18px;padding-bottom:12px;border-bottom:1px solid var(--border-light);display:flex;align-items:center;gap:8px}
.sidebar-info{list-style:none;margin:0;padding:0}
.sidebar-info li{display:flex;align-items:center;justify-content:space-between;padding:9px 0;border-bottom:1px dashed var(--border-light);font-size:.88rem}
.sidebar-info li:last-child{border-bottom:none}
.sidebar-info li span{color:var(--text-weak)}
.sidebar-info li a{font-weight:600;color:var(--primary)}
.sidebar-brand-card{background:linear-gradient(145deg,#0f172a,#1e3a8a);border:none;color:#fff}
.sidebar-brand-card .brand-lg{font-size:1.5rem;font-weight:800;color:#fff;margin-bottom:6px}
.sidebar-brand-card .brand-lg span{color:#93b4ff}
.sidebar-brand-card p{color:rgba(255,255,255,.78);font-size:.88rem;margin-bottom:16px}
.sidebar-cat-list{list-style:none;margin:0;padding:0}
.sidebar-cat-list li{margin-bottom:8px}
.sidebar-cat-list a{
  display:flex;align-items:center;gap:12px;padding:12px 14px;border-radius:12px;color:var(--text-body);
  font-size:.9rem;font-weight:500;background:var(--bg-soft);transition:var(--transition);
}
.sidebar-cat-list a i:first-child{color:var(--primary);width:20px;text-align:center}
.sidebar-cat-list a i:last-child{margin-left:auto;font-size:.75rem;color:var(--text-weak);transition:var(--transition)}
.sidebar-cat-list a:hover{background:var(--primary-light);color:var(--primary);transform:translateX(3px)}
.sidebar-cat-list a:hover i:last-child{color:var(--primary);transform:translateX(2px)}
.empty-state{
  text-align:center;padding:70px 30px;background:#fff;border-radius:var(--radius-lg);border:1px solid var(--border-light);
  box-shadow:var(--shadow-sm);
}
.empty-state i{font-size:3rem;color:var(--text-weak);margin-bottom:16px}
.empty-state h2{font-size:1.5rem;margin-bottom:8px}
.empty-state p{color:var(--text-weak);margin-bottom:24px}
.more-section{padding:60px 0;background:#fff;border-top:1px solid var(--border-light);border-bottom:1px solid var(--border-light)}
.section-head{text-align:center;margin-bottom:38px}
.section-head h2{font-size:1.9rem;margin-bottom:8px}
.section-head p{color:var(--text-weak);margin:0}
.related-grid{margin-top:10px}
.related-card{
  display:block;background:#fff;border-radius:var(--radius);border:1px solid var(--border-light);
  box-shadow:var(--shadow-sm);overflow:hidden;transition:var(--transition);height:100%;
}
.related-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.related-cover{position:relative;overflow:hidden;aspect-ratio:16/10}
.related-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.related-card:hover .related-cover img{transform:scale(1.06)}
.related-badge{
  position:absolute;top:14px;left:14px;background:rgba(15,23,42,.78);color:#fff;padding:4px 12px;
  border-radius:999px;font-size:.75rem;font-weight:600;backdrop-filter:blur(6px);
}
.related-body{padding:20px 22px 22px}
.related-body h3{font-size:1.12rem;margin-bottom:8px}
.related-body p{font-size:.88rem;color:var(--text-weak);margin-bottom:12px;line-height:1.6}
.related-link{font-size:.87rem;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px}
.related-link i{transition:transform .25s}
.related-card:hover .related-link i{transform:translateX(4px)}
.cta-section{padding:70px 0;position:relative;isolation:isolate;background:linear-gradient(135deg,var(--primary),var(--primary-dark))}
.cta-section::before{
  content:'';position:absolute;inset:0;z-index:-1;background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;opacity:.14;
}
.cta-box{display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap}
.cta-content{flex:1 1 420px}
.cta-content h2{color:#fff;font-size:2rem;margin-bottom:10px}
.cta-content p{color:rgba(255,255,255,.82);margin:0;max-width:560px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.site-footer{background:var(--dark);color:#94a3b8;padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:40px}
.footer-brand .brand{color:#fff;font-size:1.5rem}
.footer-brand .brand span{color:#93b4ff}
.footer-brand p{font-size:.9rem;color:#64748b;line-height:1.7;margin-top:14px;max-width:280px}
.footer-links h4,.footer-contact h4{color:#fff;font-size:.95rem;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;align-items:flex-start;gap:10px}
.footer-links a{color:#94a3b8;font-size:.9rem;transition:var(--transition)}
.footer-links a:hover{color:#fff;padding-left:4px}
.footer-contact p{font-size:.9rem;color:#94a3b8;margin-bottom:8px}
.footer-bottom{
  border-top:1px solid #1e293b;padding:22px 0;text-align:center;font-size:.83rem;color:#475569;
}
.footer-bottom p{margin:0}
@media(max-width:1024px){
  .article-hero-content h1{font-size:2.1rem}
  .article-card{padding:30px 28px}
  .sidebar{position:static}
}
@media(max-width:899px){
  .article-hero{padding:56px 0 48px}
  .article-hero-content h1{font-size:1.9rem}
  .cta-box{flex-direction:column;align-items:flex-start}
}
@media(max-width:767px){
  .site-header{padding:0 12px;margin-top:10px}
  .header-inner{padding:10px 16px;border-radius:18px}
  .main-nav{
    display:none;position:absolute;top:calc(100% + 10px);left:0;right:0;background:#fff;border-radius:18px;
    box-shadow:var(--shadow-lg);padding:10px;flex-direction:column;gap:2px;border:1px solid var(--border-light);
  }
  .main-nav.open{display:flex;animation:fadeIn .22s ease}
  .main-nav a{padding:12px 16px;border-radius:12px;display:block;text-align:center}
  .nav-toggle{display:inline-flex;width:42px;height:42px}
  .header-cta{display:none}
  .article-hero-content h1{font-size:1.65rem}
  .hero-desc{font-size:.95rem}
  .hero-meta{gap:12px;font-size:.82rem}
  .article-card{padding:22px 18px}
  .article-meta-bar{flex-direction:column;align-items:flex-start}
  .related-grid .cell{padding-bottom:14px}
  .more-section{padding:44px 0}
  .section-head h2{font-size:1.5rem}
  .cta-section{padding:52px 0}
  .cta-content h2{font-size:1.5rem}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media(max-width:520px){
  .footer-grid{grid-template-columns:1fr;gap:22px}
  .article-body{font-size:.96rem}
  .breadcrumb{font-size:.78rem}
  .copy-link{width:100%}
}
@keyframes fadeIn{
  from{opacity:0;transform:translateY(-8px)}
  to{opacity:1;transform:translateY(0)}
}

/* roulang page: category2 */
:root {
  --primary: #0f172a;
  --accent: #4f46e5;
  --accent-light: #818cf8;
  --accent-alt: #06b6d4;
  --warm: #f59e0b;
  --success: #10b981;
  --bg: #f8fafc;
  --bg-deep: #0f172a;
  --card-bg: #ffffff;
  --text: #1e293b;
  --text-light: #64748b;
  --text-lighter: #94a3b8;
  --border: #e2e8f0;
  --radius-lg: 26px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --shadow-xs: 0 1px 3px rgba(15,23,42,.04);
  --shadow-sm: 0 2px 10px rgba(15,23,42,.05);
  --shadow-md: 0 8px 30px rgba(15,23,42,.08);
  --shadow-lg: 0 20px 50px rgba(15,23,42,.12);
  --container: 1200px;
  --transition: .3s cubic-bezier(.4,0,.2,1);
  --font-main: -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:var(--font-main);background:var(--bg);color:var(--text);line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration:none;transition:all var(--transition)}
a:hover{color:var(--accent-light)}
img{max-width:100%;display:block}
button{font-family:inherit;cursor:pointer;border:none;background:none}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}
.grid-x{margin:0 -12px}
.cell{padding:0 12px}

/* ===== 按钮 ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:600;font-size:15px;border-radius:999px;padding:11px 26px;transition:all var(--transition);line-height:1.4;border:2px solid transparent;text-align:center}
.btn i{font-size:14px}
.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent);box-shadow:0 4px 18px rgba(79,70,229,.28)}
.btn-primary:hover{background:#4338ca;border-color:#4338ca;color:#fff;transform:translateY(-2px);box-shadow:0 8px 26px rgba(79,70,229,.34)}
.btn-outline{border-color:var(--border);color:var(--text);background:var(--card-bg)}
.btn-outline:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px);box-shadow:var(--shadow-md)}
.btn-light{background:#fff;color:var(--text);border-color:transparent}
.btn-light:hover{background:#e2e8f0;color:var(--text);transform:translateY(-2px)}
.btn-sm{padding:8px 18px;font-size:14px}
.btn-lg{padding:14px 38px;font-size:16px}

/* ===== Header / Dock Nav ===== */
.site-header{position:sticky;top:14px;z-index:100;padding-top:14px}
.header-bar{max-width:1080px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:10px 20px 10px 24px;background:rgba(255,255,255,.86);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border:1px solid rgba(226,232,240,.9);border-radius:999px;box-shadow:var(--shadow-md)}
.brand{font-size:22px;font-weight:800;color:var(--primary);letter-spacing:-.5px}
.brand span{color:var(--accent)}
.main-nav{display:flex;align-items:center;gap:4px}
.main-nav a{position:relative;padding:8px 16px;font-size:14.5px;font-weight:500;color:var(--text-light);border-radius:999px;transition:all var(--transition)}
.main-nav a:hover{color:var(--accent);background:rgba(79,70,229,.06)}
.main-nav a.active{color:var(--accent);background:rgba(79,70,229,.1);font-weight:600}
.header-cta{margin-left:6px}
.nav-toggle{display:none;width:42px;height:42px;border-radius:50%;background:rgba(79,70,229,.12);color:var(--accent);font-size:18px;align-items:center;justify-content:center;transition:all var(--transition)}
.nav-toggle:hover{background:rgba(79,70,229,.22)}

/* ===== Page Hero ===== */
.category-hero{position:relative;padding:110px 0 90px;margin-top:10px;overflow:hidden;background:linear-gradient(135deg,rgba(15,23,42,.93),rgba(79,70,229,.88)),url('/assets/images/backpic/back-2.png') center/cover;border-radius:0 0 40px 40px}
.category-hero::after{content:'';position:absolute;bottom:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--accent),var(--accent-alt),var(--warm))}
.hero-inner{position:relative;z-index:2;max-width:760px}
.hero-breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.7);margin-bottom:24px}
.hero-breadcrumb a{color:rgba(255,255,255,.8)}
.hero-breadcrumb a:hover{color:#fff}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);color:#fff;padding:7px 18px;border-radius:999px;font-size:13px;font-weight:500;margin-bottom:22px;backdrop-filter:blur(8px)}
.hero-badge i{color:var(--warm)}
.category-hero h1{font-size:52px;font-weight:800;color:#fff;line-height:1.15;letter-spacing:-1px;margin-bottom:18px}
.category-hero p{font-size:17px;color:rgba(255,255,255,.82);max-width:600px;margin-bottom:28px;line-height:1.8}
.hero-stats{display:flex;gap:0;margin-top:38px;border-top:1px solid rgba(255,255,255,.2);padding-top:24px}
.hero-stats .stat{flex:1;max-width:180px}
.hero-stats .stat-num{font-size:30px;font-weight:800;color:#fff}
.hero-stats .stat-label{font-size:13px;color:rgba(255,255,255,.7);margin-top:2px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ===== Section ===== */
.section{padding:90px 0}
.section-header{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:46px}
.section-tag{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--accent);background:rgba(79,70,229,.08);padding:5px 14px;border-radius:999px;margin-bottom:12px;letter-spacing:.5px}
.section-title{font-size:34px;font-weight:800;color:var(--primary);line-height:1.25;letter-spacing:-.5px}
.section-desc{color:var(--text-light);font-size:15.5px;max-width:560px;margin-top:10px}
.section-more{font-size:14px;font-weight:600;color:var(--accent);display:inline-flex;align-items:center;gap:6px}
.section-more i{transition:transform var(--transition)}
.section-more:hover i{transform:translateX(4px)}

/* ===== Featured News Cards ===== */
.featured-grid{display:grid;grid-template-columns:1.05fr .95fr .95fr;gap:24px}
.featured-card{background:var(--card-bg);border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border);box-shadow:var(--shadow-sm);transition:all var(--transition);display:flex;flex-direction:column}
.featured-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:rgba(79,70,229,.3)}
.featured-card .card-cover{position:relative;overflow:hidden;aspect-ratio:16/10}
.featured-card .card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.featured-card:hover .card-cover img{transform:scale(1.04)}
.card-tag{position:absolute;top:14px;left:14px;background:rgba(255,255,255,.94);color:var(--accent);font-size:12.5px;font-weight:700;padding:5px 14px;border-radius:999px;box-shadow:var(--shadow-sm);z-index:2}
.card-tag.hot{background:var(--warm);color:#fff}
.card-body{padding:24px;display:flex;flex-direction:column;flex:1}
.card-body .meta{display:flex;align-items:center;gap:16px;font-size:13px;color:var(--text-lighter);margin-bottom:12px}
.featured-card h3{font-size:19px;font-weight:700;color:var(--primary);line-height:1.5;margin-bottom:10px}
.featured-card p{font-size:14.5px;color:var(--text-light);line-height:1.7;flex:1}
.card-link{margin-top:18px;font-size:14px;font-weight:600;color:var(--accent);display:inline-flex;align-items:center;gap:6px}
.card-link i{transition:transform var(--transition)}
.featured-card:hover .card-link i{transform:translateX(4px)}

/* ===== Filter Tabs ===== */
.filter-wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.filter-tabs{display:flex;flex-wrap:wrap;gap:10px}
.filter-tab{display:inline-flex;align-items:center;gap:6px;padding:9px 20px;border-radius:999px;font-size:14px;font-weight:500;color:var(--text-light);background:var(--card-bg);border:1px solid var(--border);transition:all var(--transition);cursor:pointer}
.filter-tab:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.filter-tab.active{background:var(--accent);color:#fff;border-color:var(--accent);box-shadow:0 4px 16px rgba(79,70,229,.28)}
.filter-count{font-size:14px;color:var(--text-lighter);background:rgba(100,116,139,.08);padding:6px 14px;border-radius:999px}

/* ===== News List ===== */
.news-list{display:flex;flex-direction:column;gap:18px;margin-top:36px}
.news-row{display:flex;gap:20px;background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius-md);padding:18px;transition:all var(--transition);align-items:center}
.news-row:hover{box-shadow:var(--shadow-md);transform:translateY(-3px);border-color:rgba(79,70,229,.25)}
.news-row .news-thumb{width:180px;height:120px;border-radius:var(--radius-sm);overflow:hidden;flex-shrink:0}
.news-row .news-thumb img{width:100%;height:100%;object-fit:cover}
.news-row .news-content{flex:1}
.news-row .news-content .top-line{display:flex;align-items:center;gap:12px;margin-bottom:6px}
.news-row h4{font-size:17px;font-weight:700;color:var(--primary);margin-bottom:6px;line-height:1.5}
.news-row h4:hover{color:var(--accent)}
.news-row p{font-size:14px;color:var(--text-light);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.badge{display:inline-flex;align-items:center;font-size:12px;font-weight:600;padding:3px 12px;border-radius:999px;line-height:1.6}
.badge-accent{background:rgba(79,70,229,.1);color:var(--accent)}
.badge-warm{background:rgba(245,158,11,.12);color:#b45309}
.badge-cyan{background:rgba(6,182,212,.1);color:#0e7490}
.news-date{font-size:13px;color:var(--text-lighter)}

/* ===== Timeline Section ===== */
.timeline-section{background:var(--bg-deep);color:#fff;position:relative;overflow:hidden}
.timeline-section::before{content:'';position:absolute;top:0;right:0;width:420px;height:420px;background:radial-gradient(circle,rgba(79,70,229,.3),transparent 70%)}
.timeline-section .section-title{color:#fff}
.timeline-section .section-desc{color:rgba(255,255,255,.65)}
.timeline-section .section-tag{background:rgba(255,255,255,.1);color:#c7d2fe}
.timeline{position:relative;margin-top:50px;display:flex;flex-direction:column;gap:28px}
.timeline::before{content:'';position:absolute;left:110px;top:0;bottom:0;width:2px;background:linear-gradient(180deg,var(--accent),rgba(255,255,255,.15))}
.timeline-item{position:relative;display:flex;gap:40px;align-items:flex-start;padding-left:0}
.timeline-item::before{content:'';position:absolute;left:104px;top:18px;width:14px;height:14px;border-radius:50%;background:var(--accent);border:3px solid rgba(255,255,255,.25);z-index:1}
.timeline-date{width:110px;text-align:right;padding-right:30px;font-size:15px;font-weight:700;color:#c7d2fe;padding-top:6px;flex-shrink:0}
.timeline-card{flex:1;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius-md);padding:24px 28px;backdrop-filter:blur(8px);transition:all var(--transition)}
.timeline-card:hover{background:rgba(255,255,255,.09);transform:translateX(4px)}
.timeline-card h3{font-size:17px;font-weight:700;margin-bottom:6px;color:#fff}
.timeline-card p{font-size:14px;color:rgba(255,255,255,.7);line-height:1.7}

/* ===== Version Log Layout ===== */
.version-wrap{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.version-card{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius-lg);padding:30px 26px;transition:all var(--transition);position:relative;overflow:hidden}
.version-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--accent),var(--accent-alt))}
.version-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.version-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.version-num{font-size:24px;font-weight:800;color:var(--accent)}
.version-date{font-size:13px;color:var(--text-lighter);background:var(--bg);padding:4px 12px;border-radius:999px}
.version-card h3{font-size:17px;font-weight:700;color:var(--primary);margin-bottom:8px}
.version-card p{font-size:14px;color:var(--text-light);line-height:1.75}
.version-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--success);margin-right:6px;vertical-align:middle}

/* ===== Hot Ranking ===== */
.hot-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.hot-list{display:flex;flex-direction:column;gap:12px}
.hot-item{display:flex;align-items:center;gap:16px;background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius-md);padding:16px 20px;transition:all var(--transition)}
.hot-item:hover{box-shadow:var(--shadow-md);transform:translateX(4px);border-color:rgba(79,70,229,.3)}
.hot-rank{font-size:22px;font-weight:800;color:var(--border);font-style:italic;width:36px;flex-shrink:0}
.hot-item:first-child .hot-rank{color:var(--warm)}
.hot-item:nth-child(2) .hot-rank{color:var(--accent)}
.hot-item:nth-child(3) .hot-rank{color:var(--accent-alt)}
.hot-info{flex:1;min-width:0}
.hot-info h4{font-size:15.5px;font-weight:600;color:var(--primary);margin-bottom:4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.hot-meta{display:flex;gap:14px;font-size:13px;color:var(--text-lighter)}
.hot-meta i{color:var(--accent);margin-right:4px}
.hot-type{font-size:12px;font-weight:600;padding:3px 10px;border-radius:999px;background:rgba(79,70,229,.08);color:var(--accent);flex-shrink:0}

/* ===== CTA ===== */
.cta-section{padding:95px 0}
.cta-box{background:linear-gradient(135deg,var(--accent),#4338ca 60%,var(--accent-alt));border-radius:var(--radius-lg);padding:70px 60px;text-align:center;position:relative;overflow:hidden}
.cta-box::before{content:'';position:absolute;top:-60px;right:-60px;width:220px;height:220px;border-radius:50%;background:rgba(255,255,255,.08)}
.cta-box::after{content:'';position:absolute;bottom:-80px;left:-40px;width:260px;height:260px;border-radius:50%;background:rgba(255,255,255,.06)}
.cta-box h2{color:#fff;font-size:36px;font-weight:800;margin-bottom:14px;position:relative;z-index:2}
.cta-box p{color:rgba(255,255,255,.85);font-size:16px;max-width:560px;margin:0 auto 34px;position:relative;z-index:2}
.subscribe-form{display:flex;gap:12px;max-width:480px;margin:0 auto;position:relative;z-index:2}
.subscribe-form input[type="email"]{flex:1;border:none;border-radius:999px;padding:15px 24px;font-size:15px;outline:none;background:#fff;color:var(--text);box-shadow:var(--shadow-sm)}
.subscribe-form input[type="email"]:focus{box-shadow:0 0 0 3px rgba(255,255,255,.4)}
.subscribe-form button{background:var(--primary);color:#fff;border-radius:999px;padding:14px 28px;font-weight:600;font-size:15px;transition:all var(--transition);white-space:nowrap}
.subscribe-form button:hover{background:#1e293b;transform:translateY(-2px);box-shadow:var(--shadow-md)}

/* ===== FAQ ===== */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.faq-item{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius-md);padding:24px 26px;transition:all var(--transition)}
.faq-item:hover{box-shadow:var(--shadow-sm);border-color:rgba(79,70,229,.2)}
.faq-item h3{font-size:16px;font-weight:700;color:var(--primary);display:flex;align-items:center;gap:10px;margin-bottom:8px}
.faq-item h3 i{color:var(--accent);font-size:18px}
.faq-item p{font-size:14.5px;color:var(--text-light);line-height:1.75;padding-left:28px}

/* ===== Footer ===== */
.site-footer{background:var(--bg-deep);color:rgba(255,255,255,.75);padding:70px 0 30px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;margin-bottom:50px}
.footer-brand .brand{color:#fff;font-size:26px}
.footer-brand .brand span{color:var(--accent-light)}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.55);margin-top:16px}
.footer-links h4,.footer-contact h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:18px}
.footer-links a{display:block;color:rgba(255,255,255,.55);font-size:14px;margin-bottom:10px;transition:all var(--transition)}
.footer-links a:hover{color:#fff;padding-left:6px}
.footer-contact p{font-size:14px;color:rgba(255,255,255,.55);margin-bottom:10px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:24px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px}
.footer-bottom p{font-size:13px;color:rgba(255,255,255,.4)}

/* ===== Responsive ===== */
@media screen and (max-width:1024px){
  .featured-grid{grid-template-columns:1fr 1fr}
  .featured-card:first-child{grid-column:1/-1}
  .featured-card:first-child .card-cover{aspect-ratio:21/9}
  .version-wrap{grid-template-columns:1fr 1fr}
  .hot-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .category-hero h1{font-size:42px}
}
@media screen and (max-width:768px){
  .site-header{top:10px}
  .header-bar{padding:10px 14px 10px 20px;border-radius:24px}
  .main-nav{position:fixed;top:80px;left:16px;right:16px;display:none;flex-direction:column;background:rgba(255,255,255,.98);border:1px solid var(--border);border-radius:20px;padding:14px;box-shadow:var(--shadow-lg);z-index:99}
  .main-nav.open{display:flex}
  .main-nav a{padding:12px 16px;font-size:15px}
  .nav-toggle{display:inline-flex}
  .header-cta{display:none}
  .category-hero{padding:80px 0 60px}
  .category-hero h1{font-size:32px}
  .hero-stats .stat-num{font-size:24px}
  .section{padding:60px 0}
  .section-title{font-size:26px}
  .section-header{flex-direction:column;align-items:flex-start;gap:10px}
  .featured-grid{grid-template-columns:1fr}
  .featured-card:first-child{grid-column:auto}
  .featured-card:first-child .card-cover{aspect-ratio:16/10}
  .news-row{flex-direction:column;padding:16px}
  .news-row .news-thumb{width:100%;height:170px}
  .timeline::before{left:18px}
  .timeline-item{flex-direction:column;gap:14px;padding-left:46px}
  .timeline-date{width:auto;text-align:left;padding-right:0}
  .timeline-item::before{left:12px;top:60px}
  .version-wrap{grid-template-columns:1fr}
  .faq-grid{grid-template-columns:1fr}
  .cta-box{padding:50px 24px}
  .cta-box h2{font-size:26px}
  .subscribe-form{flex-direction:column}
  .subscribe-form button{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column}
  .hero-actions{flex-direction:column;width:100%}
  .hero-actions .btn{width:100%}
}
@media screen and (max-width:520px){
  .container{padding:0 16px}
  .header-bar{padding:10px 8px 10px 16px}
  .brand{font-size:18px}
  .hero-stats{flex-wrap:wrap;gap:16px}
  .hero-stats .stat{max-width:32%}
  .category-hero h1{font-size:28px}
  .filter-tabs{gap:6px}
  .filter-tab{padding:7px 14px;font-size:13px}
  .news-row .news-thumb{height:140px}
  .hot-item{padding:14px 14px;gap:10px}
  .hot-rank{font-size:18px;width:28px}
}

/* roulang page: category3 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #4F46E5;
            --primary-light: #818CF8;
            --primary-dark: #4338CA;
            --accent: #10B981;
            --accent-light: #D1FAE5;
            --bg: #F8FAFC;
            --surface: #FFFFFF;
            --surface-soft: #F1F5F9;
            --text: #0F172A;
            --text-muted: #64748B;
            --border: #E2E8F0;
            --radius-lg: 20px;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 4px 20px rgba(15, 23, 42, 0.06);
            --shadow-hover: 0 16px 40px rgba(79, 70, 229, 0.14);
            --spacing-lg: 72px;
            --spacing-md: 48px;
            --spacing-sm: 24px;
        }

        /* ===== Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: "Inter", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
            line-height: 1.65;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease;
        }

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: 100%;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0 0 12px;
            line-height: 1.3;
            font-weight: 700;
            color: var(--text);
        }

        p {
            margin: 0 0 16px;
            color: var(--text-muted);
        }

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

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 12px 28px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1;
            transition: transform 0.25s, box-shadow 0.25s, background 0.25s, border-color 0.25s;
            border: 1px solid transparent;
        }

        .btn i {
            font-size: 13px;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 6px 20px rgba(79, 70, 229, 0.30);
        }

        .btn-primary:hover,
        .btn-primary:focus {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(79, 70, 229, 0.40);
            color: #fff;
        }

        .btn-ghost {
            border-color: rgba(255, 255, 255, 0.6);
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(4px);
        }

        .btn-ghost:hover,
        .btn-ghost:focus {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.18);
            color: #fff;
            transform: translateY(-2px);
        }

        .btn-light {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
        }

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

        .btn-outline-light {
            border: 1px solid rgba(255, 255, 255, 0.7);
            color: #fff;
            background: transparent;
        }

        .btn-outline-light:hover,
        .btn-outline-light:focus {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ===== 浮动 Dock 导航 ===== */
        .site-header {
            position: sticky;
            top: 16px;
            z-index: 100;
            padding: 8px 20px 0;
            pointer-events: none;
        }

        .nav-dock {
            pointer-events: auto;
            max-width: 1160px;
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(18px);
            border: 1px solid rgba(226, 232, 240, 0.9);
            border-radius: 999px;
            padding: 10px 22px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            box-shadow: 0 8px 30px rgba(15, 23, 42, 0.08);
        }

        .brand {
            font-size: 22px;
            font-weight: 800;
            color: var(--text);
            letter-spacing: -0.02em;
            white-space: nowrap;
        }

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

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

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            justify-content: center;
        }

        .main-nav a {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-muted);
            padding: 10px 18px;
            border-radius: 999px;
            transition: background 0.25s, color 0.25s;
        }

        .main-nav a:hover,
        .main-nav a:focus {
            color: var(--primary);
            background: rgba(79, 70, 229, 0.06);
        }

        .main-nav a.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 14px rgba(79, 70, 229, 0.35);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            white-space: nowrap;
        }

        .nav-search {
            width: 168px;
            height: 40px;
            border-radius: 999px;
            border: 1px solid var(--border);
            background: var(--surface-soft);
            padding: 0 16px 0 38px;
            font-size: 14px;
            color: var(--text);
            transition: border-color 0.25s, box-shadow 0.25s;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='%2394a3b8' viewBox='0 0 16 16'%3E%3Cpath d='M11.742 10.344a6.5 6.5 0 1 0-1.397 1.398h-.001c.03.04.062.078.098.115l3.85 3.85a1 1 0 0 0 1.415-1.414l-3.85-3.85a1.007 1.007 0 0 0-.115-.1zM12 6.5a5.5 5.5 0 1 1-11 0 5.5 5.5 0 0 1 11 0z'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: 14px center;
            background-size: 14px;
        }

        .nav-search:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
        }

        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: var(--surface-soft);
            color: var(--text);
            font-size: 18px;
            align-items: center;
            justify-content: center;
            transition: background 0.25s;
        }

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

        /* ===== 页头横幅 ===== */
        .page-hero {
            position: relative;
            padding: 120px 0 90px;
            background-size: cover;
            background-position: center;
            text-align: center;
            color: #fff;
            overflow: hidden;
        }

        .page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.65), rgba(79, 70, 229, 0.55));
        }

        .page-hero .container {
            position: relative;
            z-index: 1;
            max-width: 800px;
        }

        .hero-kicker {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            padding: 8px 18px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.16);
            border: 1px solid rgba(255, 255, 255, 0.28);
            margin-bottom: 22px;
            backdrop-filter: blur(6px);
        }

        .page-hero h1 {
            font-size: 46px;
            margin-bottom: 18px;
            color: #fff;
        }

        .page-hero p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.92);
            max-width: 620px;
            margin: 0 auto 30px;
        }

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

        /* ===== 场景标签 ===== */
        .scene-tags {
            padding: 28px 0 8px;
            background: var(--surface);
            border-bottom: 1px solid var(--border);
        }

        .tag-scroller {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
        }

        .tag-chip {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 9px 18px;
            border-radius: 999px;
            background: var(--surface-soft);
            border: 1px solid var(--border);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-muted);
            transition: all 0.25s ease;
        }

        .tag-chip i {
            font-size: 12px;
            color: var(--primary);
        }

        .tag-chip:hover,
        .tag-chip:focus {
            background: rgba(79, 70, 229, 0.06);
            border-color: var(--primary-light);
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(79, 70, 229, 0.10);
        }

        /* ===== 板块标题 ===== */
        .section-head {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 44px;
        }

        .section-head .eyebrow {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 0.1em;
            text-transform: uppercase;
            color: var(--primary);
            margin-bottom: 10px;
        }

        .section-head h2 {
            font-size: 34px;
            margin-bottom: 12px;
        }

        .section-head p {
            font-size: 16px;
            margin-bottom: 0;
        }

        /* ===== 热门案例排行 ===== */
        .top-cases {
            padding: 72px 0;
            background: var(--surface);
        }

        .top-cases-list {
            display: flex;
            flex-direction: column;
            gap: 4px;
            max-width: 920px;
            margin: 0 auto;
        }

        .case-rank-item {
            display: flex;
            align-items: center;
            gap: 24px;
            padding: 22px 24px;
            border-radius: var(--radius);
            background: var(--surface);
            border: 1px solid transparent;
            transition: background 0.25s, border-color 0.25s, box-shadow 0.25s;
        }

        .case-rank-item:hover {
            background: var(--surface-soft);
            border-color: var(--border);
            box-shadow: var(--shadow);
        }

        .rank-num {
            font-size: 26px;
            font-weight: 800;
            color: var(--primary);
            opacity: 0.4;
            min-width: 56px;
            font-variant-numeric: tabular-nums;
        }

        .rank-main {
            flex: 1;
        }

        .rank-main h3 {
            font-size: 18px;
            margin: 6px 0 0;
            line-height: 1.4;
        }

        .rank-main .badge {
            display: inline-block;
            padding: 5px 12px;
            font-size: 12px;
            font-weight: 600;
            border-radius: 999px;
            background: var(--accent-light);
            color: #047857;
        }

        .rank-meta {
            font-size: 13px;
            color: var(--text-muted);
            white-space: nowrap;
        }

        .rank-meta i {
            margin-right: 4px;
            color: var(--primary-light);
        }

        /* ===== 行业案例网格 ===== */
        .industry-cases {
            padding: 72px 0;
            background: var(--bg);
        }

        .case-card {
            height: 100%;
            display: flex;
            flex-direction: column;
            background: var(--surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

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

        .card-cover {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: var(--surface-soft);
        }

        .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .case-card:hover .card-cover img {
            transform: scale(1.05);
        }

        .card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            z-index: 2;
            padding: 6px 14px;
            font-size: 12px;
            font-weight: 600;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.92);
            color: var(--primary);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            backdrop-filter: blur(6px);
        }

        .card-body {
            padding: 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .card-body h3 {
            font-size: 18px;
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .card-body p {
            font-size: 14px;
            flex: 1;
            margin-bottom: 16px;
        }

        .text-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            transition: gap 0.25s ease;
        }

        .text-link:hover,
        .text-link:focus {
            gap: 12px;
            color: var(--primary-dark);
        }

        .text-link i {
            font-size: 12px;
        }

        .industry-cases .cell {
            margin-bottom: 24px;
        }

        /* ===== 数据统计条带 ===== */
        .stats-band {
            position: relative;
            padding: 64px 0;
            color: #fff;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            text-align: center;
        }

        .stats-band::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.92), rgba(79, 70, 229, 0.78));
        }

        .stats-band .container {
            position: relative;
            z-index: 1;
        }

        .stat-item {
            padding: 20px 16px;
        }

        .stat-num {
            font-size: 46px;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 8px;
        }

        .stats-band p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 15px;
            margin: 0;
        }

        .stats-band .cell+.cell {
            border-left: 1px solid rgba(255, 255, 255, 0.14);
        }

        /* ===== 最新案例文章 ===== */
        .insights-list {
            padding: 72px 0;
            background: var(--surface);
        }

        .case-inline-card {
            display: flex;
            gap: 20px;
            height: 100%;
            padding: 18px;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            background: var(--surface);
            box-shadow: var(--shadow);
            transition: transform 0.25s ease, box-shadow 0.25s ease;
        }

        .case-inline-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .case-inline-thumb {
            flex-shrink: 0;
            width: 132px;
            border-radius: var(--radius-sm);
            background-size: cover;
            background-position: center;
            min-height: 120px;
        }

        .case-inline-body {
            display: flex;
            flex-direction: column;
            justify-content: center;
            min-width: 0;
        }

        .case-inline-body .badge {
            align-self: flex-start;
            display: inline-block;
            padding: 4px 10px;
            font-size: 12px;
            font-weight: 600;
            border-radius: 999px;
            background: rgba(79, 70, 229, 0.08);
            color: var(--primary);
            margin-bottom: 8px;
        }

        .case-inline-body h3 {
            font-size: 16px;
            margin-bottom: 6px;
            line-height: 1.45;
        }

        .case-inline-body h3 a:hover {
            color: var(--primary);
        }

        .case-inline-body p {
            font-size: 13px;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .case-inline-body .text-link {
            font-size: 13px;
        }

        .insights-list .cell {
            margin-bottom: 20px;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 72px 0;
            background: var(--bg);
        }

        .faq-accordion {
            max-width: 820px;
            margin: 0 auto;
            list-style: none;
        }

        .faq-accordion .accordion-item {
            background: var(--surface);
            border: 1px solid var(--border) !important;
            border-radius: var(--radius) !important;
            overflow: hidden;
            margin-bottom: 16px;
            transition: box-shadow 0.25s, border-color 0.25s;
        }

        .faq-accordion .accordion-item.is-active {
            box-shadow: var(--shadow);
            border-color: var(--primary-light) !important;
        }

        .faq-accordion .accordion-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            padding: 20px 24px;
            background: var(--surface);
            border: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }

        .faq-accordion .accordion-title:hover,
        .faq-accordion .accordion-title:focus {
            background: var(--surface-soft);
            color: var(--primary);
        }

        .faq-accordion .accordion-content {
            padding: 0 24px 20px;
            border: none;
            background: var(--surface);
            color: var(--text-muted);
            font-size: 15px;
        }

        .faq-accordion .accordion-content p {
            margin-bottom: 8px;
        }

        /* ===== CTA 区块 ===== */
        .cta-section {
            padding: 72px 0 80px;
            background: var(--surface);
        }

        .cta-panel {
            max-width: 960px;
            margin: 0 auto;
            text-align: center;
            background: linear-gradient(135deg, #4F46E5 0%, #7C3AED 100%);
            border-radius: 28px;
            padding: 56px 40px;
            color: #fff;
            position: relative;
            overflow: hidden;
            box-shadow: 0 20px 60px rgba(79, 70, 229, 0.35);
        }

        .cta-panel::before {
            content: "";
            position: absolute;
            top: -50%;
            right: -20%;
            width: 320px;
            height: 320px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
        }

        .cta-panel h2 {
            font-size: 32px;
            color: #fff;
            margin-bottom: 12px;
        }

        .cta-panel p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.88);
            margin-bottom: 28px;
        }

        .cta-panel .btn {
            margin: 0 6px;
            padding: 14px 32px;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #0B1120;
            color: #94A3B8;
            padding: 64px 0 24px;
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .site-footer .brand {
            color: #fff;
            font-size: 24px;
        }

        .site-footer .brand span {
            color: var(--primary-light);
        }

        .footer-brand p {
            color: #94A3B8;
            font-size: 14px;
            margin-top: 16px;
            line-height: 1.7;
        }

        .footer-links h4,
        .footer-contact h4 {
            color: #fff;
            font-size: 16px;
            margin-bottom: 18px;
        }

        .footer-links a {
            display: block;
            color: #94A3B8;
            font-size: 14px;
            padding: 6px 0;
            transition: color 0.25s, padding-left 0.25s;
        }

        .footer-links a:hover,
        .footer-links a:focus {
            color: #fff;
            padding-left: 6px;
        }

        .footer-contact p {
            color: #94A3B8;
            font-size: 14px;
            margin-bottom: 8px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            text-align: center;
        }

        .footer-bottom p {
            font-size: 13px;
            margin: 0;
            color: #64748B;
        }

        /* ===== 响应式断点 ===== */
        @media (max-width: 1024px) {
            .main-nav a {
                padding: 8px 14px;
            }

            .nav-search {
                width: 130px;
            }

            .stats-band .cell+.cell {
                border-left: none;
            }

            .case-inline-thumb {
                width: 110px;
            }
        }

        @media (max-width: 768px) {
            .nav-dock {
                border-radius: 24px;
                padding: 12px 18px;
            }

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

            .main-nav {
                position: fixed;
                top: 86px;
                left: 16px;
                right: 16px;
                flex-direction: column;
                align-items: stretch;
                background: rgba(255, 255, 255, 0.96);
                backdrop-filter: blur(20px);
                border: 1px solid var(--border);
                border-radius: 20px;
                padding: 14px;
                gap: 4px;
                box-shadow: 0 20px 50px rgba(15, 23, 42, 0.18);
                opacity: 0;
                visibility: hidden;
                transform: translateY(-12px);
                transition: opacity 0.25s, transform 0.25s, visibility 0.25s;
            }

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

            .main-nav a {
                font-size: 15px;
                padding: 12px 16px;
                border-radius: 12px;
                display: block;
                text-align: center;
            }

            .nav-search {
                display: none;
            }

            .page-hero {
                padding: 90px 0 64px;
            }

            .page-hero h1 {
                font-size: 32px;
            }

            .page-hero p {
                font-size: 16px;
            }

            .case-rank-item {
                flex-wrap: wrap;
                gap: 10px;
                padding: 16px;
            }

            .rank-meta {
                width: 100%;
                padding-left: 80px;
                white-space: normal;
            }

            .case-inline-card {
                flex-direction: column;
            }

            .case-inline-thumb {
                width: 100%;
                min-height: 160px;
            }

            .cta-panel {
                padding: 40px 24px;
            }

            .cta-panel h2 {
                font-size: 26px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .nav-dock {
                gap: 8px;
            }

            .brand {
                font-size: 19px;
            }

            .nav-actions .btn-primary {
                padding: 10px 18px;
                font-size: 13px;
            }

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

            .tag-scroller {
                justify-content: flex-start;
                flex-wrap: nowrap;
                overflow-x: auto;
                padding-bottom: 10px;
                -webkit-overflow-scrolling: touch;
                scrollbar-width: none;
            }

            .tag-scroller::-webkit-scrollbar {
                display: none;
            }

            .tag-chip {
                flex-shrink: 0;
            }

            .top-cases {
                padding: 56px 0;
            }

            .rank-num {
                font-size: 22px;
                min-width: 44px;
            }

            .rank-main h3 {
                font-size: 16px;
            }

            .industry-cases {
                padding: 56px 0;
            }

            .case-card {
                border-radius: 16px;
            }

            .stats-band {
                padding: 48px 0;
            }

            .stat-num {
                font-size: 34px;
            }

            .insights-list {
                padding: 56px 0;
            }

            .faq-section {
                padding: 56px 0;
            }

            .faq-accordion .accordion-title {
                font-size: 15px;
                padding: 16px;
            }

            .faq-accordion .accordion-content {
                padding: 0 16px 16px;
            }

            .cta-section {
                padding: 48px 0 56px;
            }

            .cta-panel {
                padding: 32px 20px;
                border-radius: 20px;
            }

            .cta-panel h2 {
                font-size: 22px;
            }

            .cta-panel .btn {
                margin: 6px 0;
                width: 100%;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
        }