/* roulang page: index */
/* ============ 设计变量 ============ */
:root{
  --primary:#0b1d3a;
  --primary-light:#16345f;
  --primary-lighter:#1f4685;
  --accent:#ff6b35;
  --accent-hover:#f25420;
  --accent-light:#ffebd6;
  --body-bg:#f5f7fb;
  --card-bg:#ffffff;
  --text-main:#16233a;
  --text-muted:#5a6b82;
  --border-light:#e3e9f2;
  --border-medium:#cfd9e6;
  --radius-lg:16px;
  --radius-md:10px;
  --radius-sm:6px;
  --shadow-sm:0 2px 8px rgba(11,29,58,.05);
  --shadow-md:0 6px 24px rgba(11,29,58,.07);
  --shadow-lg:0 16px 48px rgba(11,29,58,.12);
  --section-pad:clamp(3rem,6vw,5.5rem);
  --font-main:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",sans-serif;
  --font-display:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --container-max:1200px;
  --transition:all .25s cubic-bezier(.4,0,.2,1);
}

/* ============ Reset / Base ============ */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font-main);
  font-size:.95rem;
  line-height:1.7;
  color:var(--text-main);
  background-color:var(--body-bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit;transition:var(--transition)}
a:hover,a:focus{color:var(--accent)}
ul,ol{list-style:none}
button,input{font-family:inherit;font-size:inherit;border:none;background:none;outline:none}
button{cursor:pointer}

/* ============ 容器 ============ */
.container{width:100%;max-width:var(--container-max);margin:0 auto;padding:0 24px}
@media(max-width:768px){
  .container{padding:0 20px}
}
@media(max-width:520px){
  .container{padding:0 16px}
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;border-radius:var(--radius-md);
  font-weight:600;font-size:.92rem;letter-spacing:.02em;
  transition:var(--transition);border:2px solid transparent;
  line-height:1.4;white-space:nowrap;
}
.btn:focus-visible,.btn:active{outline:2px solid var(--accent);outline-offset:2px;transform:scale(.97)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 4px 14px rgba(255,107,53,.3)}
.btn-accent:hover,.btn-accent:focus{background:var(--accent-hover);color:#fff;transform:translateY(-2px);box-shadow:0 8px 20px rgba(255,107,53,.4)}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 4px 14px rgba(11,29,58,.2)}
.btn-primary:hover,.btn-primary:focus{background:var(--primary-light);color:#fff;transform:translateY(-2px);box-shadow:0 8px 20px rgba(11,29,58,.3)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.btn-ghost:hover,.btn-ghost:focus{border-color:#fff;color:#fff;background:rgba(255,255,255,.12);transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--primary)}
.btn-light:hover,.btn-light:focus{background:rgba(255,255,255,.9);color:var(--primary);transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,0,0,.12)}
.btn-sm{padding:8px 18px;font-size:.85rem;border-radius:var(--radius-sm)}

/* ============ 标签 / 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;gap:4px;
  background:var(--accent-light);color:var(--accent-hover);
  font-size:.78rem;font-weight:600;padding:4px 12px;border-radius:30px;letter-spacing:.03em;
}
.badge-outline{background:transparent;border:1px solid var(--border-medium);color:var(--text-muted)}
.badge-primary{background:rgba(11,29,58,.08);color:var(--primary)}

/* ============ Header 杂志导航 ============ */
.site-header{
  background:#fff;border-bottom:1px solid var(--border-light);
  position:sticky;top:0;z-index:1000;box-shadow:var(--shadow-sm);
}
.header-top{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 0;gap:20px;
}
.site-logo{
  display:inline-flex;align-items:center;gap:8px;
  font-size:1.45rem;font-weight:800;color:var(--primary)!important;
  letter-spacing:-.02em;font-family:var(--font-display);
}
.site-logo .logo-icon{
  width:36px;height:36px;background:linear-gradient(135deg,var(--accent),var(--accent-hover));
  border-radius:10px;display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:1rem;flex-shrink:0;
}
.header-tools{display:flex;align-items:center;gap:14px}
.search-box{
  display:flex;align-items:center;background:var(--body-bg);
  border-radius:30px;padding:4px 6px 4px 16px;
  border:1px solid var(--border-light);transition:var(--transition);width:260px;
}
.search-box:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px rgba(255,107,53,.15)}
.search-box input{flex:1;min-width:0;padding:8px 0;font-size:.85rem;color:var(--text-main);background:transparent}
.search-box input::placeholder{color:var(--text-muted)}
.search-box button{
  background:var(--accent);color:#fff;width:34px;height:34px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;transition:var(--transition);
}
.search-box button:hover{background:var(--accent-hover)}
.channel-nav{border-top:1px solid var(--border-light);background:#fff}
.channel-nav ul{
  display:flex;align-items:center;gap:4px;padding:8px 0;margin:0;
  overflow-x:auto;-webkit-overflow-scrolling:touch;
  scrollbar-width:none;-ms-overflow-style:none;
}
.channel-nav ul::-webkit-scrollbar{display:none}
.channel-nav li{flex-shrink:0}
.channel-nav a{
  display:inline-block;padding:10px 22px;font-size:.95rem;font-weight:600;
  color:var(--text-muted);border-radius:30px;transition:var(--transition);position:relative;
}
.channel-nav a:hover,.channel-nav a:focus{color:var(--primary);background:var(--body-bg)}
.channel-nav a.active{background:var(--primary);color:#fff;box-shadow:0 4px 12px rgba(11,29,58,.2)}

/* ============ Hero ============ */
.hero{
  position:relative;
  background:linear-gradient(135deg,rgba(11,29,58,.95),rgba(22,52,95,.82)),url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color:#fff;padding:clamp(4rem,8vw,7rem) 0 clamp(4.5rem,7vw,6rem);overflow:hidden;
}
.hero::after{
  content:'';position:absolute;bottom:-60px;right:-60px;width:280px;height:280px;
  border-radius:50%;background:rgba(255,107,53,.18);filter:blur(60px);
}
.hero-content{position:relative;z-index:2;max-width:680px}
.hero-badge{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);
  color:#fff;padding:6px 16px;border-radius:30px;font-size:.82rem;font-weight:500;
  margin-bottom:24px;backdrop-filter:blur(10px);
}
.hero-badge i{color:var(--accent)}
.hero h1{
  font-size:clamp(2.4rem,5vw,3.8rem);font-weight:800;line-height:1.15;
  letter-spacing:-.02em;margin-bottom:18px;font-family:var(--font-display);
}
.hero h1 .hero-dot{color:var(--accent)}
.hero-lead{
  font-size:clamp(1rem,1.5vw,1.15rem);color:rgba(255,255,255,.85);
  line-height:1.8;margin-bottom:32px;max-width:540px;
}
.hero-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:36px}
.hero-tags{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.hero-tags span{
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);
  padding:5px 14px;border-radius:20px;font-size:.82rem;color:rgba(255,255,255,.75);
}

/* ============ 统计条 ============ */
.stats-wrap{
  margin-top:-50px;margin-bottom:60px;position:relative;z-index:5;
  padding:0 24px;
}
.stats-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);overflow:hidden;
}
.stat-item{padding:32px 20px;text-align:center;border-right:1px solid var(--border-light)}
.stat-item:last-child{border-right:none}
.stat-item strong{
  display:block;font-size:clamp(1.8rem,2.5vw,2.4rem);font-weight:800;
  color:var(--primary);line-height:1.2;margin-bottom:4px;
}
.stat-item strong .stat-accent{color:var(--accent)}
.stat-item span{font-size:.88rem;color:var(--text-muted)}

/* ============ 通用板块 ============ */
.section{padding:var(--section-pad) 0}
.section-bg-light{background:#fff}
.section-bg-alt{background:#eef2f8}
.section-head{text-align:center;max-width:640px;margin:0 auto clamp(2rem,4vw,3rem)}
.section-tag{
  display:inline-flex;align-items:center;gap:6px;color:var(--accent);
  font-weight:700;font-size:.82rem;text-transform:uppercase;
  letter-spacing:.12em;margin-bottom:12px;
}
.section-tag::before{content:'';width:24px;height:2px;background:var(--accent);border-radius:2px}
.section-head h2{
  font-size:clamp(1.6rem,3vw,2.3rem);font-weight:800;line-height:1.3;
  color:var(--text-main);letter-spacing:-.01em;margin-bottom:12px;
}
.section-head p{color:var(--text-muted);font-size:.95rem;line-height:1.7}

/* ============ 关于区块 ============ */
.about-wrap{display:grid;grid-template-columns:1.05fr 1fr;gap:clamp(2rem,5vw,4.5rem);align-items:center}
.about-img-box{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg)}
.about-img-box img{width:100%;height:100%;object-fit:cover;min-height:320px}
.about-badge{
  position:absolute;bottom:20px;left:20px;background:rgba(255,255,255,.95);
  backdrop-filter:blur(10px);border-radius:var(--radius-md);padding:14px 20px;
  box-shadow:var(--shadow-md);display:flex;align-items:center;gap:12px;
}
.about-badge strong{font-size:1.6rem;color:var(--accent);font-weight:800;line-height:1}
.about-badge span{font-size:.8rem;color:var(--text-muted);line-height:1.3}
.about-content h2{
  font-size:clamp(1.5rem,2.6vw,2rem);font-weight:800;line-height:1.35;
  margin-bottom:16px;letter-spacing:-.01em;
}
.about-content p{color:var(--text-muted);margin-bottom:16px}
.about-list{margin:20px 0 28px}
.about-list li{display:flex;align-items:flex-start;gap:10px;padding:7px 0;color:var(--text-main);font-size:.94rem}
.about-list li i{color:var(--accent);margin-top:4px;flex-shrink:0}

/* ============ 分类卡片 ============ */
.cat-wrapper{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.cat-card{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:var(--shadow-md);transition:var(--transition);
  display:block;min-height:280px;background:var(--primary);
}
.cat-card:hover,.cat-card:focus{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.cat-card img{
  width:100%;height:100%;object-fit:cover;position:absolute;inset:0;
  opacity:.55;transition:var(--transition);
}
.cat-card:hover img{opacity:.4;transform:scale(1.05)}
.cat-card-content{
  position:relative;z-index:2;padding:32px;min-height:280px;
  display:flex;flex-direction:column;justify-content:flex-end;color:#fff;
}
.cat-card-content .bg-badge{
  background:rgba(255,255,255,.2);color:#fff;backdrop-filter:blur(6px);
  margin-bottom:auto;display:inline-flex;align-items:center;gap:4px;
  font-size:.78rem;font-weight:600;padding:4px 12px;border-radius:30px;
  width:fit-content;
}
.cat-card-content h3{font-size:1.5rem;font-weight:700;margin-bottom:8px;color:#fff}
.cat-card-content p{color:rgba(255,255,255,.85);font-size:.9rem;margin-bottom:16px;line-height:1.6}
.cat-card-link{
  display:inline-flex;align-items:center;gap:6px;color:#fff;font-weight:600;
  font-size:.9rem;border-bottom:2px solid rgba(255,255,255,.3);
  padding-bottom:2px;width:fit-content;transition:var(--transition);
}
.cat-card-link i{transition:transform .2s}
.cat-card:hover .cat-card-link i{transform:translateX(4px)}

/* ============ 资讯列表 ============ */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.news-card{
  background:var(--card-bg);border-radius:var(--radius-lg);
  border:1px solid var(--border-light);padding:26px;
  transition:var(--transition);display:flex;flex-direction:column;
}
.news-card:hover,.news-card:focus-within{
  box-shadow:var(--shadow-md);transform:translateY(-4px);border-color:var(--border-medium);
}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:14px}
.news-meta time{font-size:.8rem;color:var(--text-muted)}
.news-card h3{font-size:1.05rem;font-weight:700;line-height:1.5;margin-bottom:10px}
.news-card h3 a{color:var(--text-main)}
.news-card h3 a:hover,.news-card h3 a:focus{color:var(--accent)}
.news-card p{
  color:var(--text-muted);font-size:.88rem;line-height:1.65;margin-bottom:16px;
  flex-grow:1;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-readmore{
  display:inline-flex;align-items:center;gap:6px;font-size:.85rem;
  font-weight:600;color:var(--primary);width:fit-content;cursor:pointer;
}
.news-readmore i{transition:transform .2s;font-size:.8rem}
.news-readmore:hover,.news-readmore:focus{color:var(--accent)}
.news-readmore:hover i,.news-readmore:focus i{transform:translateX(4px)}
.empty-tip{
  grid-column:1/-1;text-align:center;color:var(--text-muted);
  padding:60px 20px;background:var(--card-bg);border-radius:var(--radius-lg);
  border:1px dashed var(--border-medium);
}

/* ============ 特色功能 ============ */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature-card{
  background:var(--card-bg);border-radius:var(--radius-lg);
  border:1px solid var(--border-light);padding:32px 28px;
  transition:var(--transition);position:relative;overflow:hidden;
}
.feature-card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:4px;
  background:linear-gradient(90deg,var(--accent),var(--accent-hover));
  opacity:0;transition:var(--transition);
}
.feature-card:hover,.feature-card:focus-within{
  transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:transparent;
}
.feature-card:hover::before{opacity:1}
.feature-icon{
  width:54px;height:54px;border-radius:14px;background:var(--accent-light);
  color:var(--accent);display:flex;align-items:center;justify-content:center;
  font-size:1.35rem;margin-bottom:20px;transition:var(--transition);
}
.feature-card:hover .feature-icon{
  background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(255,107,53,.3);
}
.feature-card h3{font-size:1.12rem;font-weight:700;margin-bottom:10px}
.feature-card p{font-size:.88rem;color:var(--text-muted);line-height:1.7}

/* ============ 流程步骤 ============ */
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;position:relative}
.flow-grid::before{
  content:'';position:absolute;top:34px;left:15%;right:15%;height:2px;
  background:linear-gradient(90deg,var(--border-light),var(--accent),var(--border-light));z-index:1;
}
.flow-step{text-align:center;position:relative;z-index:2;padding:0 10px}
.flow-number{
  width:68px;height:68px;border-radius:50%;background:var(--card-bg);
  border:3px solid var(--accent);color:var(--accent);font-size:1.4rem;
  font-weight:800;display:flex;align-items:center;justify-content:center;
  margin:0 auto 18px;box-shadow:0 0 0 6px var(--body-bg);font-family:var(--font-display);
}
.flow-step:nth-child(2) .flow-number,
.flow-step:nth-child(4) .flow-number{
  background:var(--accent);color:#fff;border-color:var(--accent);
}
.flow-step h3{font-size:1rem;font-weight:700;margin-bottom:8px}
.flow-step p{font-size:.84rem;color:var(--text-muted);line-height:1.6}

/* ============ FAQ ============ */
.faq-wrap{max-width:760px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:var(--card-bg);border:1px solid var(--border-light);
  border-radius:var(--radius-md);overflow:hidden;transition:var(--transition);
}
.faq-item:hover,.faq-item:focus-within{border-color:var(--border-medium);box-shadow:var(--shadow-sm)}
.faq-item details>summary{
  list-style:none;cursor:pointer;padding:22px 24px;font-weight:600;
  font-size:.98rem;display:flex;align-items:center;justify-content:space-between;
  gap:16px;transition:var(--transition);
}
.faq-item details>summary::-webkit-details-marker{display:none}
.faq-item details>summary .faq-icon{
  width:26px;height:26px;border-radius:50%;background:var(--body-bg);
  display:flex;align-items:center;justify-content:center;font-size:.8rem;
  color:var(--text-muted);transition:var(--transition);flex-shrink:0;
}
.faq-item details[open]>summary{color:var(--accent);border-bottom:1px solid var(--border-light)}
.faq-item details[open]>summary .faq-icon{background:var(--accent);color:#fff;transform:rotate(45deg)}
.faq-item .faq-answer{
  padding:18px 24px;color:var(--text-muted);font-size:.92rem;
  line-height:1.7;background:var(--body-bg);
}

/* ============ CTA ============ */
.cta-section{
  position:relative;
  background:linear-gradient(135deg,rgba(11,29,58,.96),rgba(22,52,95,.88)),url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  color:#fff;padding:clamp(3rem,6vw,4.5rem) 0;text-align:center;
}
.cta-section h2{font-size:clamp(1.5rem,3vw,2.2rem);font-weight:800;margin-bottom:14px}
.cta-section p{
  color:rgba(255,255,255,.85);font-size:1rem;max-width:540px;
  margin:0 auto 28px;line-height:1.8;
}
.cta-actions{display:flex;align-items:center;justify-content:center;gap:14px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{background:#09182e;color:#93a8c4;padding-top:60px}
.footer-grid{
  display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;
  gap:40px;padding-bottom:40px;
}
.footer-brand .site-logo{color:#fff!important;margin-bottom:16px}
.footer-brand p{font-size:.88rem;line-height:1.7;margin-bottom:20px;color:#7a8fab}
.footer-social{display:flex;gap:10px}
.footer-social a{
  width:38px;height:38px;border-radius:10px;background:rgba(255,255,255,.06);
  display:flex;align-items:center;justify-content:center;color:#7a8fab;
  font-size:.9rem;transition:var(--transition);
}
.footer-social a:hover,.footer-social a:focus{background:var(--accent);color:#fff;transform:translateY(-3px)}
.footer-col h4{color:#fff;font-size:.95rem;font-weight:700;margin-bottom:18px;letter-spacing:.03em}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{color:#7a8fab;font-size:.87rem;transition:var(--transition)}
.footer-col ul a:hover,.footer-col ul a:focus{color:var(--accent);padding-left:4px}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;margin-bottom:14px;font-size:.87rem;line-height:1.6}
.footer-contact li i{color:var(--accent);margin-top:4px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.06);padding:22px 0}
.footer-bottom .container{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px}
.footer-bottom p{font-size:.82rem;color:#5a718e}
.footer-bottom a{color:#5a718e}
.footer-bottom a:hover,.footer-bottom a:focus{color:var(--accent)}

/* ============ 响应式 ============ */
@media screen and (max-width:1024px){
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .flow-grid{grid-template-columns:repeat(2,1fr);gap:32px 20px}
  .flow-grid::before{display:none}
  .footer-grid{grid-template-columns:1fr 1fr}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stat-item{border-bottom:1px solid var(--border-light)}
  .stat-item:nth-child(2n){border-right:none}
  .stat-item:nth-child(3),.stat-item:nth-child(4){border-bottom:none}
}
@media screen and (max-width:768px){
  .header-top{flex-wrap:wrap}
  .search-box{display:none}
  .about-wrap{grid-template-columns:1fr}
  .about-img-box{order:-1}
  .cat-wrapper{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .stats-wrap{margin-top:-40px;padding:0 16px}
  .stat-item{padding:24px 16px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
}
@media screen and (max-width:520px){
  .feature-grid{grid-template-columns:1fr}
  .flow-grid{grid-template-columns:1fr}
  .flow-step{padding:0}
  .cat-card-content{padding:24px}
  .cat-card-content h3{font-size:1.2rem}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{justify-content:center}
  .channel-nav a{padding:8px 16px;font-size:.88rem}
  .footer-bottom .container{flex-direction:column;text-align:center}
  .stats-grid{grid-template-columns:1fr 1fr}
  .stat-item strong{font-size:1.5rem}
}

/* roulang page: category1 */
:root{
  --primary:#2563eb;
  --primary-dark:#1d4ed8;
  --primary-light:#dbeafe;
  --accent:#f59e0b;
  --accent-dark:#d97706;
  --dark:#0f172a;
  --dark-2:#1e293b;
  --bg:#f8fafc;
  --bg-soft:#f1f5f9;
  --white:#ffffff;
  --text:#1e293b;
  --text-weak:#64748b;
  --border:#e2e8f0;
  --radius:18px;
  --radius-sm:10px;
  --shadow-sm:0 1px 3px rgba(15,23,42,.06);
  --shadow-md:0 10px 30px rgba(15,23,42,.08);
  --shadow-lg:0 24px 48px rgba(15,23,42,.14);
  --space-xs:8px;
  --space-sm:16px;
  --space-md:24px;
  --space-lg:48px;
  --space-xl:80px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Helvetica,Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary)}
img{max-width:100%;display:block}
ul,ol{list-style:none;margin:0;padding:0}
button,input{font-family:inherit;font-size:inherit}
:focus{outline:2px solid rgba(37,99,235,.5);outline-offset:2px}

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

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 26px;
  border-radius:999px;
  border:none;
  font-weight:700;
  font-size:15px;
  line-height:1.4;
  cursor:pointer;
  transition:all .25s ease;
  text-align:center;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:#fff;
  box-shadow:0 6px 18px rgba(37,99,235,.35);
}
.btn-primary:hover{
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 12px 28px rgba(37,99,235,.45);
}
.btn-accent{
  background:linear-gradient(135deg,var(--accent),var(--accent-dark));
  color:#fff;
  box-shadow:0 6px 18px rgba(245,158,11,.35);
}
.btn-accent:hover{
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 12px 28px rgba(245,158,11,.45);
}
.btn-outline{
  background:transparent;
  color:var(--primary);
  border:2px solid var(--primary);
}
.btn-outline:hover{background:var(--primary-light);border-color:var(--primary-dark);color:var(--primary-dark)}
.btn-sm{padding:8px 18px;font-size:13px}
.btn-lg{padding:15px 38px;font-size:16px}
.btn:active{transform:translateY(0) scale(.98)}

/* 标签与徽章 */
.tag{
  display:inline-block;
  padding:4px 14px;
  border-radius:999px;
  background:var(--primary-light);
  color:var(--primary-dark);
  font-size:12px;
  font-weight:700;
  letter-spacing:.3px;
}
.tag-weak{background:var(--bg-soft);color:var(--text-weak)}
.badge{
  display:inline-flex;
  align-items:center;
  gap:4px;
  padding:3px 12px;
  border-radius:999px;
  background:linear-gradient(135deg,#10b981,#059669);
  color:#fff;
  font-size:11px;
  font-weight:700;
  letter-spacing:.5px;
}

/* 区块通用 */
.section{padding:64px 0}
.section-head{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  align-items:flex-end;
  gap:16px;
  margin-bottom:36px;
}
.section-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--primary);
  font-size:13px;
  font-weight:800;
  letter-spacing:1px;
  background:var(--primary-light);
  padding:5px 18px;
  border-radius:999px;
  margin-bottom:10px;
}
.section-title{
  font-size:32px;
  font-weight:800;
  line-height:1.25;
  margin:0 0 8px;
  letter-spacing:-.5px;
  color:var(--dark);
}
.section-desc{color:var(--text-weak);font-size:15px;max-width:560px;margin:0}
.section-more{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--primary);
  font-weight:700;
  font-size:14px;
  padding:8px 0;
}
.section-more i{transition:transform .2s}
.section-more:hover i{transform:translateX(4px)}

/* ===== Header ===== */
.site-header{
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
  position:sticky;
  top:0;
  z-index:100;
}
.header-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:14px 0 10px;
  flex-wrap:wrap;
}
.site-logo{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:24px;
  font-weight:900;
  letter-spacing:-.5px;
  color:var(--dark);
}
.logo-icon{
  display:inline-flex;
  width:40px;
  height:40px;
  border-radius:12px;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:#fff;
  align-items:center;
  justify-content:center;
  font-size:18px;
  box-shadow:0 6px 14px rgba(37,99,235,.35);
}
.header-tools{
  display:flex;
  align-items:center;
  gap:14px;
}
.search-box{
  display:flex;
  align-items:center;
  background:var(--bg-soft);
  border:1px solid var(--border);
  border-radius:999px;
  padding:4px 6px 4px 18px;
  transition:border-color .2s,box-shadow .2s;
}
.search-box:focus-within{border-color:var(--primary);box-shadow:0 0 0 4px rgba(37,99,235,.1)}
.search-box input{
  border:none;
  background:transparent;
  padding:8px 10px 8px 0;
  width:190px;
  color:var(--text);
}
.search-box input::placeholder{color:var(--text-weak)}
.search-box button{
  background:var(--primary);
  color:#fff;
  border:none;
  width:38px;
  height:38px;
  border-radius:50%;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:center;
  transition:background .2s;
}
.search-box button:hover{background:var(--primary-dark)}
.channel-nav{
  border-top:1px solid var(--border);
}
.channel-nav ul{
  display:flex;
  flex-wrap:wrap;
  gap:4px;
  list-style:none;
  margin:0;
}
.channel-nav a{
  display:block;
  padding:12px 20px;
  color:var(--text-weak);
  font-weight:600;
  font-size:15px;
  border-radius:8px 8px 0 0;
  border-bottom:3px solid transparent;
  transition:color .2s,border-color .2s,background .2s;
}
.channel-nav a:hover{
  color:var(--primary);
  background:var(--bg-soft);
}
.channel-nav a.active{
  color:var(--primary);
  border-bottom-color:var(--primary);
  background:var(--primary-light);
}
.menu-toggle{
  display:none;
  background:var(--bg-soft);
  border:1px solid var(--border);
  border-radius:8px;
  color:var(--text);
  width:42px;
  height:42px;
  font-size:18px;
  cursor:pointer;
  align-items:center;
  justify-content:center;
}

/* ===== Hero ===== */
.page-hero{
  position:relative;
  padding:110px 0;
  background:
    linear-gradient(135deg,rgba(15,23,42,.82),rgba(30,64,175,.68)),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color:#fff;
  text-align:center;
}
.hero-inner{max-width:840px;margin:0 auto}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.28);
  backdrop-filter:blur(6px);
  padding:7px 20px;
  border-radius:999px;
  font-size:13px;
  font-weight:700;
  letter-spacing:.6px;
  margin-bottom:24px;
}
.hero-title{
  font-size:46px;
  font-weight:900;
  line-height:1.2;
  letter-spacing:-1px;
  margin:0 0 18px;
  text-shadow:0 4px 20px rgba(0,0,0,.3);
}
.hero-desc{
  font-size:17px;
  color:rgba(255,255,255,.85);
  max-width:620px;
  margin:0 auto 36px;
}
.hero-actions{
  display:flex;
  gap:16px;
  justify-content:center;
  flex-wrap:wrap;
}

/* ===== Filter ===== */
.filter-section{padding:28px 0 8px}
.filter-bar{
  display:flex;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
  background:var(--white);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:14px 20px;
  box-shadow:var(--shadow-sm);
}
.filter-label{
  display:flex;
  align-items:center;
  gap:8px;
  color:var(--text-weak);
  font-weight:700;
  font-size:14px;
  white-space:nowrap;
}
.filter-tabs{
  display:flex;
  gap:8px;
  flex-wrap:wrap;
}
.filter-tab{
  padding:8px 20px;
  border-radius:999px;
  border:none;
  background:var(--bg-soft);
  color:var(--text-weak);
  font-weight:600;
  font-size:13px;
  cursor:pointer;
  transition:all .2s;
}
.filter-tab:hover{background:var(--primary-light);color:var(--primary-dark)}
.filter-tab.active{
  background:var(--primary);
  color:#fff;
  box-shadow:0 4px 14px rgba(37,99,235,.3);
}

/* ===== Timeline ===== */
.timeline-section{background:var(--white);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.timeline{
  position:relative;
  max-width:860px;
  margin:0 auto;
}
.timeline::before{
  content:"";
  position:absolute;
  left:66px;
  top:0;
  bottom:0;
  width:2px;
  background:linear-gradient(to bottom,var(--primary-light),var(--border),transparent);
}
.timeline-item{
  position:relative;
  display:flex;
  gap:28px;
  padding:20px 0 20px 96px;
}
.timeline-item::before{
  content:"";
  position:absolute;
  left:60px;
  top:34px;
  width:14px;
  height:14px;
  border-radius:50%;
  background:var(--primary);
  border:3px solid var(--white);
  box-shadow:0 0 0 4px rgba(37,99,235,.2);
  z-index:1;
}
.timeline-meta{
  width:110px;
  text-align:right;
  flex-shrink:0;
  padding-top:4px;
}
.timeline-time{
  display:block;
  font-weight:800;
  font-size:18px;
  color:var(--dark);
}
.timeline-badge{
  display:inline-block;
  margin-top:4px;
  font-size:11px;
  font-weight:700;
  color:var(--primary);
  background:var(--primary-light);
  padding:2px 10px;
  border-radius:999px;
}
.timeline-content{
  flex:1;
  background:var(--bg);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:18px 22px;
  transition:box-shadow .25s,transform .25s;
}
.timeline-content:hover{
  box-shadow:var(--shadow-md);
  transform:translateY(-2px);
}
.timeline-content h3{
  margin:6px 0 4px;
  font-size:17px;
  font-weight:700;
  line-height:1.5;
}
.timeline-content h3 a{color:var(--text)}
.timeline-content h3 a:hover{color:var(--primary)}
.timeline-content p{
  margin:0;
  color:var(--text-weak);
  font-size:14px;
}

/* ===== News Cards ===== */
.featured-section{background:var(--bg)}
.news-card{
  background:var(--white);
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid var(--border);
  box-shadow:var(--shadow-sm);
  transition:transform .25s,box-shadow .25s;
  height:calc(100% - 20px);
  margin-bottom:20px;
}
.news-card:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-lg);
}
.card-media{
  display:block;
  position:relative;
  aspect-ratio:16/10;
  overflow:hidden;
}
.card-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.news-card:hover .card-media img{transform:scale(1.06)}
.card-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(to top,rgba(15,23,42,.35),transparent 50%);
}
.card-play{
  position:absolute;
  left:50%;
  top:50%;
  transform:translate(-50%,-50%);
  width:52px;
  height:52px;
  border-radius:50%;
  background:rgba(255,255,255,.92);
  color:var(--primary);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:18px;
  box-shadow:0 8px 24px rgba(0,0,0,.25);
  opacity:0;
  transition:opacity .3s,transform .3s;
  z-index:2;
}
.news-card:hover .card-play{opacity:1;transform:translate(-50%,-50%) scale(1)}
.card-body{padding:22px 22px 20px}
.card-tags{display:flex;gap:8px;margin-bottom:10px}
.card-title{
  font-size:17px;
  font-weight:800;
  line-height:1.45;
  margin:0 0 8px;
}
.card-title a{color:var(--dark)}
.card-title a:hover{color:var(--primary)}
.card-desc{
  color:var(--text-weak);
  font-size:14px;
  line-height:1.7;
  margin:0 0 16px;
}
.card-meta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  color:var(--text-weak);
  font-size:13px;
}
.card-meta span{display:inline-flex;align-items:center;gap:6px}

/* ===== Data Panel ===== */
.data-section{
  background:
    linear-gradient(rgba(15,23,42,.85),rgba(30,58,138,.82)),
    url('/assets/images/backpic/back-2.png') center/cover fixed;
  color:#fff;
  text-align:center;
}
.data-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:32px;
}
.data-item{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius);
  padding:36px 20px;
  backdrop-filter:blur(4px);
  transition:background .25s,transform .25s;
}
.data-item:hover{
  background:rgba(255,255,255,.12);
  transform:scale(1.04);
}
.data-num{
  font-size:44px;
  font-weight:900;
  margin:0 0 4px;
  background:linear-gradient(135deg,#60a5fa,#f59e0b);
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
}
.data-label{
  font-size:15px;
  color:rgba(255,255,255,.78);
  font-weight:600;
  letter-spacing:.5px;
  margin:0;
}
.data-icon{
  font-size:22px;
  margin-bottom:10px;
  color:#60a5fa;
}

/* ===== FAQ ===== */
.faq-section{background:var(--white)}
.faq-panel{
  max-width:860px;
  margin:0 auto;
}
.faq-item{
  border:1px solid var(--border);
  border-radius:var(--radius);
  margin-bottom:14px;
  background:var(--bg);
  overflow:hidden;
  transition:box-shadow .2s,border-color .2s;
}
.faq-item.active{
  border-color:var(--primary);
  box-shadow:var(--shadow-md);
}
.faq-question{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
  padding:18px 24px;
  font-size:16px;
  font-weight:700;
  cursor:pointer;
  background:transparent;
  border:none;
  width:100%;
  text-align:left;
  color:var(--text);
  transition:color .2s;
}
.faq-question i{
  color:var(--primary);
  transition:transform .3s;
  flex-shrink:0;
}
.faq-item.active .faq-question i{
  transform:rotate(180deg);
}
.faq-answer{
  display:none;
  padding:0 24px 22px;
  color:var(--text-weak);
  font-size:15px;
  line-height:1.8;
  border-top:1px dashed var(--border);
  margin:0 0 0 24px;
  padding-left:0;
  padding-right:0;
  margin-right:24px;
}

/* ===== CTA ===== */
.cta-section{
  background:
    linear-gradient(135deg,rgba(37,99,235,.92),rgba(29,78,216,.85)),
    url('/assets/images/backpic/back-3.png') center/cover;
  padding:80px 0;
  color:#fff;
  text-align:center;
}
.cta-inner{max-width:700px;margin:0 auto}
.cta-title{font-size:34px;font-weight:900;margin:0 0 14px;letter-spacing:-.5px}
.cta-desc{font-size:16px;color:rgba(255,255,255,.85);margin:0 0 32px}
.cta-form{
  display:flex;
  gap:12px;
  max-width:560px;
  margin:0 auto 16px;
  flex-wrap:wrap;
  justify-content:center;
}
.form-input{
  flex:1;
  min-width:240px;
  padding:14px 22px;
  border:2px solid rgba(255,255,255,.4);
  border-radius:999px;
  background:rgba(255,255,255,.15);
  color:#fff;
  font-size:15px;
  transition:border-color .2s,background .2s;
}
.form-input::placeholder{color:rgba(255,255,255,.7)}
.form-input:focus{
  border-color:#fff;
  background:rgba(255,255,255,.25);
  outline:none;
}
.form-tip{
  font-size:13px;
  color:rgba(255,255,255,.7);
  display:flex;
  align-items:center;
  justify-content:center;
  gap:8px;
}

/* ===== Footer ===== */
.site-footer{
  background:var(--dark);
  color:rgba(255,255,255,.72);
  padding:60px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1.2fr;
  gap:48px;
  padding-bottom:48px;
}
.footer-brand .site-logo{color:#fff;margin-bottom:14px}
.footer-brand p{font-size:14px;line-height:1.8;margin:0 0 20px}
.footer-social{
  display:flex;
  gap:10px;
}
.footer-social a{
  width:38px;
  height:38px;
  border-radius:50%;
  background:rgba(255,255,255,.1);
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:15px;
  transition:background .2s,transform .2s;
}
.footer-social a:hover{
  background:var(--primary);
  color:#fff;
  transform:translateY(-3px);
}
.footer-col h4{
  color:#fff;
  font-size:16px;
  font-weight:800;
  margin:0 0 18px;
}
.footer-col li{margin-bottom:10px}
.footer-col a{
  color:rgba(255,255,255,.72);
  font-size:14px;
  transition:color .2s,padding-left .2s;
}
.footer-col a:hover{
  color:#fff;
  padding-left:4px;
}
.footer-contact li{
  display:flex;
  gap:10px;
  font-size:14px;
  margin-bottom:12px;
  align-items:center;
}
.footer-contact i{color:var(--accent);width:16px;text-align:center}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0;
  text-align:center;
  font-size:13px;
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  justify-content:center;
}
.footer-bottom a{color:rgba(255,255,255,.72)}
.footer-bottom a:hover{color:#fff}

/* ===== Responsive ===== */
@media(max-width:1024px){
  .section{padding:48px 0}
  .section-title{font-size:28px}
  .hero-title{font-size:38px}
  .data-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media(max-width:767px){
  .header-top{flex-wrap:nowrap}
  .search-box{display:none}
  .menu-toggle{display:flex}
  .channel-nav{display:none}
  .channel-nav.open{display:block}
  .channel-nav ul{flex-direction:column;padding:8px 0}
  .channel-nav a{border-radius:8px;border-bottom:none;padding:12px 16px}
  .page-hero{padding:70px 0}
  .hero-title{font-size:30px}
  .hero-actions .btn{width:100%}
  .filter-bar{align-items:flex-start;flex-direction:column}
  .timeline::before{left:16px}
  .timeline-item{padding-left:44px;gap:14px;flex-direction:column}
  .timeline-item::before{left:10px}
  .timeline-meta{text-align:left;width:auto}
  .data-section{background-attachment:scroll}
  .data-grid{grid-template-columns:1fr 1fr}
  .cta-form{flex-direction:column}
  .form-input{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:4px}
}
@media(max-width:520px){
  .container{padding:0 16px}
  .section{padding:40px 0}
  .section-title{font-size:24px}
  .hero-title{font-size:26px}
  .hero-desc{font-size:15px}
  .data-grid{grid-template-columns:1fr 1fr;gap:12px}
  .data-item{padding:22px 12px}
  .data-num{font-size:32px}
  .news-card .card-body{padding:18px}
  .cta-section{padding:56px 0}
  .cta-title{font-size:26px}
}

/* roulang page: article */
:root {
    --primary: #161832;
    --primary-2: #262a4d;
    --accent: #ff5a3d;
    --accent-2: #ff8a5c;
    --accent-deep: #e84329;
    --bg: #f4f5fa;
    --card: #ffffff;
    --text: #1b1e32;
    --muted: #7c8198;
    --border: #e5e7f0;
    --radius-lg: 20px;
    --radius-md: 14px;
    --radius-sm: 9px;
    --shadow: 0 10px 30px rgba(20, 25, 55, 0.08);
    --shadow-lg: 0 18px 48px rgba(20, 25, 55, 0.14);
    --font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}
*, *::before, *::after {
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
body {
    margin: 0;
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.7;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}
img {
    max-width: 100%;
    display: block;
}
a {
    color: inherit;
    text-decoration: none;
}
ul, ol {
    margin: 0;
    padding: 0;
}
input, button, textarea {
    font-family: inherit;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.25rem;
}

/* ===== Header ===== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.94);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 4px 20px rgba(20, 25, 55, 0.04);
}
.header-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1rem 0 0.6rem;
}
.site-logo {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--primary);
    letter-spacing: -0.02em;
    white-space: nowrap;
    transition: opacity 0.2s;
}
.site-logo:hover {
    opacity: 0.85;
}
.logo-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 11px;
    background: linear-gradient(135deg, var(--accent), #ff2d55);
    color: #fff;
    font-size: 1.05rem;
    box-shadow: 0 6px 16px rgba(255, 90, 61, 0.35);
}
.header-tools {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}
.search-box {
    display: flex;
    align-items: center;
    background: #f0f1f6;
    border: 1px solid transparent;
    border-radius: 40px;
    padding: 0.32rem 0.35rem 0.32rem 1rem;
    transition: border-color 0.25s, box-shadow 0.25s, background 0.25s;
}
.search-box:focus-within {
    background: #fff;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(255, 90, 61, 0.12);
}
.search-box input {
    border: 0;
    background: transparent;
    outline: none;
    font-size: 0.88rem;
    width: 150px;
    color: var(--text);
}
.search-box input::placeholder {
    color: #a7abc0;
}
.search-box button {
    background: var(--accent);
    border: 0;
    border-radius: 50%;
    width: 30px;
    height: 30px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 0.8rem;
    cursor: pointer;
    transition: background 0.25s, transform 0.2s;
}
.search-box button:hover {
    background: var(--accent-deep);
    transform: scale(1.05);
}
.channel-nav {
    border-top: 1px solid #eef0f5;
}
.channel-nav ul {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    margin: 0;
    padding: 0.6rem 0 0.9rem;
}
.channel-nav li {
    flex-shrink: 0;
}
.channel-nav a {
    display: inline-block;
    padding: 0.45rem 1.25rem;
    border-radius: 40px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--muted);
    border: 1px solid transparent;
    transition: all 0.25s;
    background: transparent;
}
.channel-nav a:hover {
    color: var(--primary);
    background: #eef0f6;
}
.channel-nav a.active {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 4px 14px rgba(22, 24, 50, 0.28);
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    border-radius: 40px;
    padding: 0.72rem 1.45rem;
    font-size: 0.92rem;
    font-weight: 700;
    border: 0;
    cursor: pointer;
    text-decoration: none;
    line-height: 1;
    transition: all 0.25s;
    white-space: nowrap;
}
.btn-primary {
    background: var(--primary);
    color: #fff;
}
.btn-primary:hover {
    background: var(--primary-2);
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(22, 24, 50, 0.22);
}
.btn-accent {
    background: linear-gradient(135deg, var(--accent), #ff3a4d);
    color: #fff;
    box-shadow: 0 6px 18px rgba(255, 90, 61, 0.32);
}
.btn-accent:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 26px rgba(255, 90, 61, 0.42);
}
.btn-light {
    background: #fff;
    color: var(--primary);
}
.btn-light:hover {
    background: #f0f1f6;
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.18);
}
.btn-outline-light {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.65);
    color: #fff;
}
.btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: #fff;
    transform: translateY(-2px);
}
.btn-sm {
    padding: 0.55rem 1rem;
    font-size: 0.85rem;
}
.btn-block {
    width: 100%;
}
.btn:focus-visible {
    outline: 3px solid rgba(255, 90, 61, 0.4);
    outline-offset: 2px;
}

/* ===== Article Banner ===== */
.article-banner {
    position: relative;
    padding: 4.6rem 0 3.4rem;
    background: linear-gradient(120deg, rgba(22, 24, 50, 0.95), rgba(38, 42, 77, 0.86)), url('/assets/images/backpic/back-2.png') center / cover no-repeat;
    color: #fff;
    overflow: hidden;
}
.article-banner::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: -1px;
    height: 70px;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0), var(--bg));
    pointer-events: none;
}
.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 1.4rem;
}
.breadcrumb a {
    color: rgba(255, 255, 255, 0.85);
    transition: color 0.2s;
}
.breadcrumb a:hover {
    color: #fff;
}
.breadcrumb .sep {
    opacity: 0.5;
}
.banner-title-wrap {
    max-width: 820px;
}
.banner-kicker {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 0.8rem;
}
.banner-kicker i {
    color: var(--accent-2);
}
.banner-title-wrap h1 {
    font-size: clamp(1.7rem, 4vw, 2.7rem);
    line-height: 1.32;
    font-weight: 800;
    margin-bottom: 0.6rem;
    letter-spacing: -0.02em;
    color: #fff;
}
.banner-sub {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.72);
    max-width: 640px;
    margin-bottom: 0;
}

/* ===== Article Layout ===== */
.article-section {
    padding: 3.6rem 0 4.8rem;
}
.article-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 330px;
    gap: 2.4rem;
    align-items: start;
}
.article-card {
    background: var(--card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    padding: 2.6rem;
}
.article-head {
    padding-bottom: 1.6rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: 2rem;
}
.category-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: linear-gradient(135deg, var(--accent), #ff3a4d);
    color: #fff;
    font-size: 0.8rem;
    font-weight: 700;
    padding: 0.32rem 1rem;
    border-radius: 40px;
    margin-bottom: 1.1rem;
    box-shadow: 0 4px 12px rgba(255, 90, 61, 0.25);
}
.article-head h1 {
    font-size: clamp(1.55rem, 3vw, 2.15rem);
    line-height: 1.36;
    color: var(--primary);
    margin: 0 0 1rem 0;
    letter-spacing: -0.01em;
}
.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1.1rem;
    align-items: center;
    font-size: 0.85rem;
    color: var(--muted);
}
.meta-item {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}
.meta-item i {
    color: var(--accent);
    font-size: 0.9rem;
}

/* ===== Article Content ===== */
.article-content {
    font-size: 1.05rem;
    line-height: 1.9;
    color: #2c3043;
    word-break: break-word;
}
.article-content p {
    margin: 0 0 1.35em;
}
.article-content h2 {
    font-size: 1.5rem;
    color: var(--primary);
    margin: 1.9em 0 0.8em;
    padding-left: 0.85rem;
    border-left: 4px solid var(--accent);
    line-height: 1.4;
}
.article-content h3 {
    font-size: 1.24rem;
    color: var(--primary);
    margin: 1.6em 0 0.6em;
    line-height: 1.45;
}
.article-content ul,
.article-content ol {
    padding-left: 1.5rem;
    margin: 0 0 1.3em;
}
.article-content li {
    margin-bottom: 0.45rem;
}
.article-content img {
    border-radius: var(--radius-md);
    margin: 1.5em 0;
    box-shadow: var(--shadow);
}
.article-content blockquote {
    background: #f6f7fb;
    border-left: 4px solid var(--accent);
    border-radius: 0 12px 12px 0;
    padding: 1.1rem 1.5rem;
    margin: 1.6em 0;
    color: var(--primary);
    font-style: italic;
}
.article-content a {
    color: var(--accent-deep);
    text-decoration: underline;
    text-underline-offset: 3px;
}
.article-content a:hover {
    color: var(--accent);
}
.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.4em 0;
    font-size: 0.93rem;
    border-radius: var(--radius-sm);
    overflow: hidden;
}
.article-content table th {
    background: var(--primary);
    color: #fff;
    padding: 0.7rem 1rem;
    text-align: left;
    font-weight: 600;
}
.article-content table td {
    border-bottom: 1px solid var(--border);
    padding: 0.65rem 1rem;
    background: #fafbfe;
}
.not-found {
    text-align: center;
    padding: 3rem 1rem;
}
.not-found i {
    font-size: 3.4rem;
    color: var(--accent);
    margin-bottom: 1.2rem;
    display: inline-block;
    opacity: 0.85;
}
.not-found h2 {
    font-size: 1.5rem;
    color: var(--primary);
    margin-bottom: 0.6rem;
}
.not-found p {
    color: var(--muted);
    margin-bottom: 1.6rem;
}

/* ===== Article Foot ===== */
.article-foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 2.2rem;
    padding-top: 1.4rem;
    border-top: 1px solid var(--border);
}
.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}
.tag {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    background: #eef0f6;
    color: var(--primary);
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.3rem 0.85rem;
    border-radius: 30px;
    transition: all 0.2s;
}
.tag:hover {
    background: var(--primary);
    color: #fff;
}
.share {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.share-label {
    font-size: 0.82rem;
    color: var(--muted);
}
.share-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: #f0f1f6;
    color: var(--text);
    font-size: 0.9rem;
    transition: all 0.25s;
    border: 1px solid transparent;
}
.share-btn:hover {
    background: var(--accent);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(255, 90, 61, 0.3);
}

/* ===== Sidebar ===== */
.article-side {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    position: sticky;
    top: 130px;
}
.side-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow);
    padding: 1.5rem;
}
.side-card h3 {
    font-size: 1rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 1.1rem;
    padding-bottom: 0.7rem;
    border-bottom: 2px solid var(--border);
    position: relative;
}
.side-card h3::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -2px;
    width: 42px;
    height: 2px;
    background: var(--accent);
}
.side-list {
    list-style: none;
}
.side-list li {
    padding: 0.7rem 0;
    border-bottom: 1px dashed #eceef4;
}
.side-list li:last-child {
    border-bottom: 0;
    padding-bottom: 0;
}
.side-list a {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text);
    line-height: 1.5;
    transition: color 0.2s;
}
.side-list a:hover {
    color: var(--accent);
}
.side-date {
    display: block;
    font-size: 0.76rem;
    color: var(--muted);
    margin-top: 0.2rem;
}
.side-cats {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}
.side-cats a {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.7rem 1rem;
    background: #fafbfe;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-size: 0.9rem;
    font-weight: 600;
    transition: all 0.25s;
}
.side-cats a:hover {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
    transform: translateX(3px);
}
.side-cats i {
    color: var(--accent);
}
.side-cats a:hover i {
    color: #fff;
}
.side-cta {
    background: linear-gradient(135deg, var(--primary), #232755);
    color: #fff;
    border: 0;
}
.side-cta h3 {
    color: #fff;
    border-bottom-color: rgba(255, 255, 255, 0.15);
}
.side-cta h3::after {
    background: var(--accent);
}
.side-cta p {
    font-size: 0.88rem;
    color: rgba(255, 255, 255, 0.75);
    margin-bottom: 1.2rem;
    line-height: 1.7;
}

/* ===== Related ===== */
.related-section {
    padding: 4.6rem 0;
    background: #fff;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}
.section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}
.section-head h2 {
    font-size: 1.7rem;
    font-weight: 800;
    color: var(--primary);
    letter-spacing: -0.01em;
    margin-bottom: 0.15rem;
}
.section-head .sub {
    color: var(--muted);
    font-size: 0.9rem;
}
.section-head-line {
    width: 48px;
    height: 4px;
    background: linear-gradient(90deg, var(--accent), var(--accent-2));
    border-radius: 4px;
    margin-top: 0.4rem;
}
.related-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}
.post-card {
    background: #fafbfe;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}
.post-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}
.card-media {
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background: #e8eaf2;
}
.card-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}
.post-card:hover .card-media img {
    transform: scale(1.06);
}
.card-cat {
    position: absolute;
    top: 0.85rem;
    left: 0.85rem;
    background: rgba(22, 24, 50, 0.7);
    backdrop-filter: blur(6px);
    color: #fff;
    font-size: 0.72rem;
    font-weight: 600;
    padding: 0.24rem 0.7rem;
    border-radius: 30px;
    letter-spacing: 0.02em;
}
.card-body {
    padding: 1.2rem 1.25rem 1.1rem;
}
.card-body h3 {
    font-size: 1rem;
    line-height: 1.5;
    margin-bottom: 0.55rem;
    font-weight: 700;
}
.card-body h3 a {
    color: var(--text);
    transition: color 0.2s;
}
.card-body h3 a:hover {
    color: var(--accent);
}
.card-body p {
    font-size: 0.84rem;
    color: var(--muted);
    line-height: 1.7;
    margin-bottom: 0.8rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.78rem;
    color: var(--muted);
}
.read-more {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    color: var(--accent);
    font-weight: 600;
    transition: gap 0.2s, color 0.2s;
}
.read-more:hover {
    gap: 0.55rem;
    color: var(--accent-deep);
}
.empty-tip {
    text-align: center;
    color: var(--muted);
    background: #fafbfe;
    border: 1px dashed var(--border);
    border-radius: var(--radius-md);
    padding: 2rem 1rem;
    font-size: 0.95rem;
}

/* ===== FAQ ===== */
.faq-section {
    padding: 4.6rem 0;
    background: var(--bg);
}
.faq-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.3rem;
    margin-top: 2rem;
}
.faq-item {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1.5rem 1.6rem;
    box-shadow: var(--shadow);
    transition: box-shadow 0.3s, transform 0.3s;
}
.faq-item:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}
.faq-item h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.55rem;
    display: flex;
    align-items: flex-start;
    gap: 0.55rem;
    line-height: 1.5;
}
.faq-item h3 i {
    color: var(--accent);
    font-size: 0.85rem;
    margin-top: 0.25rem;
}
.faq-item p {
    font-size: 0.9rem;
    color: var(--muted);
    line-height: 1.75;
    margin-bottom: 0;
}

/* ===== CTA ===== */
.cta-section {
    padding: 4.6rem 0;
    background: linear-gradient(135deg, var(--primary), #232755 55%, #1d2041);
    color: #fff;
    position: relative;
    overflow: hidden;
}
.cta-section::before {
    content: '';
    position: absolute;
    right: -120px;
    top: -120px;
    width: 360px;
    height: 360px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 90, 61, 0.28), transparent 65%);
    pointer-events: none;
}
.cta-inner {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    flex-wrap: wrap;
}
.cta-text h2 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 800;
    margin-bottom: 0.6rem;
}
.cta-text p {
    color: rgba(255, 255, 255, 0.72);
    max-width: 540px;
    margin-bottom: 0;
    font-size: 0.98rem;
}
.cta-actions {
    display: flex;
    gap: 0.8rem;
    flex-wrap: wrap;
}

/* ===== Footer ===== */
.site-footer {
    background: #111322;
    color: #a8abc2;
    font-size: 0.9rem;
}
.site-footer .container {
    padding-top: 3.5rem;
    padding-bottom: 1.8rem;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
    gap: 2.5rem;
    padding-bottom: 2.2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.footer-grid .site-logo {
    color: #fff;
    margin-bottom: 1rem;
}
.footer-brand p {
    color: rgba(255, 255, 255, 0.55);
    line-height: 1.75;
    margin-bottom: 1.1rem;
    max-width: 280px;
    font-size: 0.88rem;
}
.footer-social {
    display: flex;
    gap: 0.6rem;
}
.footer-social a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
    font-size: 0.95rem;
    transition: all 0.25s;
    border: 1px solid transparent;
}
.footer-social a:hover {
    background: var(--accent);
    transform: translateY(-3px);
    box-shadow: 0 8px 18px rgba(255, 90, 61, 0.35);
}
.footer-col h4 {
    color: #fff;
    font-size: 0.98rem;
    font-weight: 700;
    margin-bottom: 1.1rem;
    letter-spacing: 0.02em;
}
.footer-col ul {
    list-style: none;
    margin: 0;
}
.footer-col li {
    margin-bottom: 0.55rem;
}
.footer-col a {
    color: rgba(255, 255, 255, 0.6);
    transition: color 0.2s, padding-left 0.2s;
}
.footer-col a:hover {
    color: #fff;
    padding-left: 3px;
}
.footer-contact li {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    color: rgba(255, 255, 255, 0.6);
}
.footer-contact li i {
    color: var(--accent);
    width: 16px;
    text-align: center;
}
.footer-bottom {
    padding: 1.1rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    font-size: 0.82rem;
}
.footer-bottom .container {
    padding-top: 0;
    padding-bottom: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.8rem;
    flex-wrap: wrap;
}
.footer-bottom p {
    margin: 0;
    color: rgba(255, 255, 255, 0.45);
}
.footer-bottom a {
    color: rgba(255, 255, 255, 0.65);
    transition: color 0.2s;
}
.footer-bottom a:hover {
    color: var(--accent);
}

/* ===== Back to Top ===== */
.back-top {
    position: fixed;
    right: 22px;
    bottom: 24px;
    z-index: 99;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    border: 0;
    font-size: 1rem;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 26px rgba(22, 24, 50, 0.3);
    transition: all 0.25s;
}
.back-top:hover {
    background: var(--accent);
    transform: translateY(-3px);
    box-shadow: 0 14px 30px rgba(255, 90, 61, 0.4);
}
.back-top.show {
    display: inline-flex;
}
.back-top:focus-visible {
    outline: 3px solid rgba(255, 90, 61, 0.5);
    outline-offset: 2px;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .article-layout {
        grid-template-columns: 1fr;
    }
    .article-side {
        position: static;
        flex-direction: row;
        flex-wrap: wrap;
    }
    .side-card {
        flex: 1 1 calc(50% - 0.75rem);
        min-width: 240px;
    }
    .related-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-grid {
        grid-template-columns: 1.2fr 1fr 1fr;
    }
    .footer-grid .footer-col:last-child {
        grid-column: 1 / -1;
    }
}
@media (max-width: 768px) {
    .header-top {
        flex-direction: column;
        align-items: stretch;
        gap: 0.7rem;
        padding-top: 0.8rem;
    }
    .header-tools {
        justify-content: space-between;
    }
    .search-box {
        flex: 1;
        max-width: 320px;
    }
    .search-box input {
        width: 100%;
    }
    .channel-nav ul {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        flex-wrap: nowrap;
        white-space: nowrap;
        padding-bottom: 0.8rem;
        scrollbar-width: none;
    }
    .channel-nav ul::-webkit-scrollbar {
        display: none;
    }
    .channel-nav li {
        display: inline-block;
    }
    .article-section {
        padding: 2.5rem 0 3.4rem;
    }
    .article-card {
        padding: 1.8rem 1.4rem;
    }
    .faq-grid {
        grid-template-columns: 1fr;
    }
    .cta-inner {
        flex-direction: column;
        align-items: flex-start;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 1.8rem;
    }
    .footer-brand {
        grid-column: 1 / -1;
    }
    .article-banner {
        padding: 3.2rem 0 2.6rem;
    }
}
@media (max-width: 560px) {
    .related-grid {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 1.4rem;
    }
    .footer-brand,
    .footer-col {
        grid-column: 1 / -1;
    }
    .search-box input {
        font-size: 0.82rem;
    }
    .btn-sm {
        font-size: 0.78rem;
        padding: 0.5rem 0.8rem;
    }
    .article-meta {
        gap: 0.8rem;
    }
    .article-foot {
        flex-direction: column;
        align-items: flex-start;
    }
    .article-banner .banner-title-wrap h1 {
        font-size: 1.5rem;
    }
    .section-head {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* roulang page: category2 */
:root {
  --primary: #e83c3c;
  --primary-dark: #c62828;
  --primary-light: #ff6b6b;
  --accent: #ffb300;
  --dark: #0f141a;
  --dark-2: #151d27;
  --dark-3: #1e2936;
  --light: #f5f7fa;
  --white: #ffffff;
  --text: #1e2a38;
  --text-light: #637083;
  --border: #e3e8ee;
  --bg-body: #f7f8fb;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 8px rgba(15, 20, 26, .06);
  --shadow-md: 0 8px 30px rgba(15, 20, 26, .08);
  --shadow-lg: 0 16px 48px rgba(15, 20, 26, .12);
  --space-section: 90px;
  --font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Heiti SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-family); color: var(--text); background: var(--bg-body); line-height: 1.7; font-size: 16px; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: color .25s ease, opacity .25s ease; }
ul, ol { list-style: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ===== Header ===== */
.site-header { background: var(--dark); position: sticky; top: 0; z-index: 100; box-shadow: 0 4px 24px rgba(0,0,0,.25); }
.header-top { display: flex; align-items: center; justify-content: space-between; padding: 14px 0; }
.site-logo { display: inline-flex; align-items: center; gap: 10px; font-size: 1.35rem; font-weight: 800; color: var(--white); letter-spacing: .5px; }
.logo-icon { width: 38px; height: 38px; display: inline-flex; align-items: center; justify-content: center; background: linear-gradient(135deg, var(--primary), var(--accent)); border-radius: 10px; color: #fff; font-size: 1rem; box-shadow: 0 4px 12px rgba(232, 60, 60, .35); }
.header-tools { display: flex; align-items: center; gap: 14px; }
.search-box { display: flex; align-items: center; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.12); border-radius: 40px; padding: 0 6px 0 16px; height: 38px; width: 260px; transition: border-color .3s, background .3s; }
.search-box:focus-within { background: rgba(255,255,255,.14); border-color: rgba(255,255,255,.35); }
.search-box input { background: transparent; border: none; outline: none; color: #fff; width: 100%; font-size: .875rem; }
.search-box input::placeholder { color: rgba(255,255,255,.55); }
.search-box button { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: #fff; border: none; width: 30px; height: 30px; border-radius: 50%; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: transform .3s, box-shadow .3s; }
.search-box button:hover { transform: scale(1.08); box-shadow: 0 4px 12px rgba(232,60,60,.4); }
.channel-nav { border-top: 1px solid rgba(255,255,255,.08); }
.channel-nav ul { display: flex; align-items: center; gap: 4px; padding: 0; margin: 0; overflow-x: auto; }
.channel-nav li { flex-shrink: 0; }
.channel-nav a { display: inline-block; padding: 14px 22px; color: rgba(255,255,255,.72); font-size: .95rem; font-weight: 600; border-bottom: 3px solid transparent; transition: color .3s, border-color .3s, background .3s; }
.channel-nav a:hover { color: #fff; background: rgba(255,255,255,.06); }
.channel-nav a.active { color: var(--accent); border-bottom-color: var(--accent); }

/* ===== Buttons ===== */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 28px; border-radius: 40px; font-weight: 700; font-size: .95rem; border: none; cursor: pointer; transition: all .3s ease; }
.btn-primary { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: #fff; box-shadow: 0 6px 20px rgba(232,60,60,.32); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(232,60,60,.42); color: #fff; }
.btn-accent { background: linear-gradient(135deg, var(--accent), #ff8f00); color: #1a1a1a; box-shadow: 0 6px 20px rgba(255,179,0,.3); }
.btn-accent:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(255,179,0,.4); color: #1a1a1a; }
.btn-outline { background: transparent; border: 2px solid rgba(255,255,255,.7); color: #fff; }
.btn-outline:hover { background: rgba(255,255,255,.1); border-color: #fff; color: #fff; }
.btn-outline-dark { background: transparent; border: 2px solid var(--primary); color: var(--primary); }
.btn-outline-dark:hover { background: var(--primary); color: #fff; }
.btn-sm { padding: 8px 18px; font-size: .84rem; }

/* ===== Guide Hero ===== */
.guide-hero { position: relative; background: url('/assets/images/backpic/back-1.png') center/cover no-repeat; padding: 110px 0; color: #fff; }
.guide-hero::before { content: ''; position: absolute; inset: 0; background: linear-gradient(120deg, rgba(15,20,26,.88) 0%, rgba(15,20,26,.68) 45%, rgba(15,20,26,.35) 100%); }
.guide-hero .container { position: relative; z-index: 2; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,.14); border: 1px solid rgba(255,255,255,.25); padding: 6px 18px; border-radius: 40px; font-size: .85rem; font-weight: 600; backdrop-filter: blur(8px); margin-bottom: 22px; }
.hero-badge i { color: var(--accent); }
.guide-hero h1 { font-size: 2.9rem; font-weight: 800; line-height: 1.2; margin-bottom: 18px; max-width: 720px; }
.guide-hero h1 span { color: var(--accent); }
.guide-hero p { font-size: 1.1rem; color: rgba(255,255,255,.85); max-width: 640px; margin-bottom: 32px; line-height: 1.8; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-meta { display: flex; gap: 28px; margin-top: 42px; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.18); }
.hero-meta-item { display: flex; align-items: center; gap: 10px; font-size: .9rem; color: rgba(255,255,255,.75); }
.hero-meta-item i { color: var(--accent); }

/* ===== Section Common ===== */
.section-padding { padding: var(--space-section) 0; }
.section-bg-light { background: var(--light); }
.section-bg-white { background: var(--white); }
.section-bg-dark { background: var(--dark); color: #fff; }
.section-head { text-align: center; margin-bottom: 48px; }
.section-tag { display: inline-block; background: rgba(232,60,60,.08); color: var(--primary); padding: 6px 18px; border-radius: 30px; font-size: .82rem; font-weight: 700; letter-spacing: 1px; margin-bottom: 14px; }
.section-head h2 { font-size: 2.2rem; font-weight: 800; color: var(--text); margin-bottom: 12px; line-height: 1.3; }
.section-head p { color: var(--text-light); max-width: 620px; margin: 0 auto; font-size: 1.02rem; }
.section-bg-dark .section-head h2 { color: #fff; }
.section-bg-dark .section-head p { color: rgba(255,255,255,.65); }
.section-bg-dark .section-tag { background: rgba(255,255,255,.12); color: var(--accent); }

/* ===== Guide Category Cards ===== */
.guide-cat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.guide-cat-card { background: var(--white); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm); transition: all .35s ease; border: 1px solid var(--border); }
.guide-cat-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.guide-cat-card .cat-img { position: relative; height: 160px; overflow: hidden; }
.guide-cat-card .cat-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.guide-cat-card:hover .cat-img img { transform: scale(1.06); }
.guide-cat-card .cat-img::after { content: ''; position: absolute; inset: 0; background: linear-gradient(to top, rgba(15,20,26,.5), transparent 60%); }
.guide-cat-card .cat-icon { position: absolute; bottom: 14px; left: 16px; z-index: 2; width: 42px; height: 42px; background: linear-gradient(135deg, var(--primary), var(--primary-dark)); border-radius: 12px; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 1rem; box-shadow: 0 6px 18px rgba(232,60,60,.4); }
.guide-cat-card .cat-body { padding: 20px 20px 24px; }
.guide-cat-card h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 8px; }
.guide-cat-card p { color: var(--text-light); font-size: .89rem; line-height: 1.7; margin-bottom: 14px; }
.cat-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 16px; }
.cat-tags span { font-size: .75rem; background: var(--bg-body); color: var(--text-light); padding: 3px 10px; border-radius: 20px; font-weight: 500; }
.cat-link { color: var(--primary); font-weight: 700; font-size: .9rem; display: inline-flex; align-items: center; gap: 6px; transition: gap .3s; }
.cat-link:hover { gap: 12px; color: var(--primary-dark); }

/* ===== Steps ===== */
.steps-section { position: relative; background: url('/assets/images/backpic/back-2.png') center/cover no-repeat fixed; padding: 100px 0; }
.steps-section::before { content: ''; position: absolute; inset: 0; background: rgba(15,20,26,.85); }
.steps-section .container { position: relative; z-index: 2; }
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; margin-top: 44px; }
.step-card { text-align: center; padding: 34px 22px; background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.1); border-radius: var(--radius); backdrop-filter: blur(10px); transition: background .3s, transform .3s; position: relative; }
.step-card:hover { background: rgba(255,255,255,.1); transform: translateY(-4px); }
.step-num { display: flex; align-items: center; justify-content: center; width: 52px; height: 52px; margin: 0 auto 18px; border-radius: 50%; background: linear-gradient(135deg, var(--accent), #ff8f00); color: #1a1a1a; font-size: 1.3rem; font-weight: 800; box-shadow: 0 8px 24px rgba(255,179,0,.35); }
.step-card h3 { color: #fff; font-size: 1.1rem; font-weight: 700; margin-bottom: 10px; }
.step-card p { color: rgba(255,255,255,.66); font-size: .88rem; line-height: 1.7; }

/* ===== Guide Content Grid ===== */
.guide-content-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; align-items: center; }
.guide-content-list { display: flex; flex-direction: column; gap: 16px; }
.guide-content-item { display: flex; gap: 16px; background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 20px; transition: all .3s; }
.guide-content-item:hover { box-shadow: var(--shadow-md); border-color: transparent; }
.gc-icon { flex-shrink: 0; width: 48px; height: 48px; border-radius: 12px; background: rgba(232,60,60,.08); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 1.2rem; }
.gc-body h3 { font-size: 1.02rem; font-weight: 700; margin-bottom: 6px; }
.gc-body p { color: var(--text-light); font-size: .88rem; line-height: 1.65; }
.gc-tag { display: inline-block; background: rgba(255,179,0,.15); color: #b97a00; font-size: .72rem; font-weight: 700; padding: 2px 10px; border-radius: 20px; margin-left: 8px; vertical-align: middle; }
.guide-visual { position: relative; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-lg); }
.guide-visual img { width: 100%; height: 420px; object-fit: cover; }
.guide-visual-caption { position: absolute; left: 16px; right: 16px; bottom: 16px; background: rgba(15,20,26,.78); backdrop-filter: blur(10px); padding: 16px; border-radius: 12px; color: #fff; }
.guide-visual-caption strong { display: block; margin-bottom: 4px; color: var(--accent); }
.guide-visual-caption span { font-size: .88rem; color: rgba(255,255,255,.8); }

/* ===== Stats ===== */
.stats-band { background: linear-gradient(135deg, var(--dark-2), var(--dark-3)); padding: 70px 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.stat-item { text-align: center; padding: 30px 16px; background: rgba(255,255,255,.04); border-radius: var(--radius); border: 1px solid rgba(255,255,255,.07); }
.stat-item i { font-size: 1.8rem; color: var(--accent); margin-bottom: 14px; }
.stat-item strong { display: block; font-size: 2.1rem; font-weight: 800; color: #fff; line-height: 1.2; }
.stat-item span { color: rgba(255,255,255,.6); font-size: .9rem; }

/* ===== Tips Section ===== */
.tips-section { background: var(--white); }
.tips-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.tip-card { padding: 30px; border-radius: var(--radius); border: 1px solid var(--border); transition: all .35s; background: var(--light); }
.tip-card:hover { box-shadow: var(--shadow-md); border-color: transparent; background: #fff; }
.tip-card .tip-icon { width: 54px; height: 54px; border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 1.3rem; margin-bottom: 18px; }
.tip-card:nth-child(1) .tip-icon { background: rgba(232,60,60,.1); color: var(--primary); }
.tip-card:nth-child(2) .tip-icon { background: rgba(255,179,0,.12); color: #e08e00; }
.tip-card:nth-child(3) .tip-icon { background: rgba(38,166,91,.1); color: #26a65b; }
.tip-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 10px; }
.tip-card p { color: var(--text-light); font-size: .9rem; line-height: 1.75; }

/* ===== FAQ ===== */
.faq-section { background: var(--light); }
.faq-wrap { max-width: 820px; margin: 0 auto; }
.faq-item { background: var(--white); border: 1px solid var(--border); border-radius: 14px; margin-bottom: 14px; overflow: hidden; transition: box-shadow .3s; }
.faq-item:hover { box-shadow: var(--shadow-sm); }
.faq-item[open] { box-shadow: var(--shadow-md); }
.faq-item summary { padding: 20px 24px; cursor: pointer; font-weight: 700; font-size: 1rem; list-style: none; display: flex; align-items: center; justify-content: space-between; gap: 16px; color: var(--text); }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .fa { color: var(--primary); font-size: 1.1rem; transition: transform .3s; flex-shrink: 0; }
.faq-item[open] summary .fa { transform: rotate(45deg); }
.faq-item .faq-answer { padding: 0 24px 22px; color: var(--text-light); font-size: .93rem; line-height: 1.8; border-top: 1px solid var(--border); padding-top: 4px; }
.faq-item .faq-answer p { padding-top: 14px; }

/* ===== CTA ===== */
.cta-section { background: url('/assets/images/backpic/back-3.png') center/cover no-repeat; position: relative; padding: 90px 0; }
.cta-section::before { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(15,20,26,.9), rgba(198,40,40,.75)); }
.cta-section .container { position: relative; z-index: 2; text-align: center; color: #fff; }
.cta-section h2 { font-size: 2.2rem; font-weight: 800; margin-bottom: 16px; }
.cta-section p { max-width: 580px; margin: 0 auto 32px; color: rgba(255,255,255,.82); font-size: 1.04rem; }
.cta-actions { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }

/* ===== Footer ===== */
.site-footer { background: var(--dark); color: rgba(255,255,255,.7); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.1fr; gap: 44px; padding: 70px 0 48px; }
.footer-brand .site-logo { margin-bottom: 16px; }
.footer-brand p { font-size: .9rem; line-height: 1.8; color: rgba(255,255,255,.55); margin-bottom: 22px; max-width: 320px; }
.footer-social { display: flex; gap: 10px; }
.footer-social a { width: 38px; height: 38px; border-radius: 50%; background: rgba(255,255,255,.07); display: inline-flex; align-items: center; justify-content: center; color: rgba(255,255,255,.65); transition: all .3s; }
.footer-social a:hover { background: var(--primary); color: #fff; transform: translateY(-3px); }
.footer-col h4 { color: #fff; font-size: 1rem; font-weight: 700; margin-bottom: 20px; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a { color: rgba(255,255,255,.55); font-size: .9rem; transition: color .3s, padding-left .3s; }
.footer-col ul a:hover { color: var(--accent); padding-left: 6px; }
.footer-contact li { display: flex; align-items: center; gap: 10px; font-size: .9rem; color: rgba(255,255,255,.55); }
.footer-contact i { color: var(--accent); width: 18px; text-align: center; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding: 22px 0; }
.footer-bottom .container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px; }
.footer-bottom p { font-size: .84rem; color: rgba(255,255,255,.4); margin: 0; }
.footer-bottom a { color: rgba(255,255,255,.6); }
.footer-bottom a:hover { color: var(--accent); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  :root { --space-section: 70px; }
  .guide-cat-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .tips-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .guide-content-grid { grid-template-columns: 1fr; }
  .search-box { width: 200px; }
}
@media (max-width: 768px) {
  .header-top { flex-direction: column; gap: 12px; }
  .header-tools { width: 100%; justify-content: space-between; }
  .search-box { flex: 1; }
  .guide-hero { padding: 70px 0; }
  .guide-hero h1 { font-size: 2.1rem; }
  .hero-meta { flex-wrap: wrap; gap: 16px; }
  .section-head h2 { font-size: 1.75rem; }
  .steps-grid { grid-template-columns: 1fr; }
  .guide-cat-grid { grid-template-columns: 1fr; }
  .tips-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; padding: 50px 0 32px; }
  .footer-bottom .container { flex-direction: column; text-align: center; }
  .cta-section { padding: 60px 0; }
  .cta-section h2 { font-size: 1.75rem; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .channel-nav a { padding: 12px 14px; font-size: .88rem; }
  .guide-hero h1 { font-size: 1.7rem; }
  .guide-hero p { font-size: .95rem; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .stats-grid { grid-template-columns: 1fr; }
  .stat-item { padding: 20px; }
  .guide-content-item { flex-direction: column; align-items: flex-start; }
  .faq-item summary { padding: 16px 18px; font-size: .93rem; }
  .footer-social a { width: 34px; height: 34px; }
}