/* roulang page: index */
:root{
  --bg-deep:#0A1714;
  --bg-main:#0E1F1C;
  --bg-soft:#123029;
  --accent:#FF5A2B;
  --accent-soft:rgba(255,90,43,.14);
  --cyan:#2BD9C4;
  --cyan-soft:rgba(43,217,196,.12);
  --text:#E8F1EE;
  --text-2:#9BB0AA;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.16);
  --radius-card:14px;
  --radius-btn:10px;
  --radius-hero:20px;
  --shadow-card:0 4px 18px rgba(0,0,0,.28);
  --shadow-hover:0 10px 30px rgba(255,90,43,.22);
  --mono:"DIN Alternate","Roboto Mono",ui-monospace,Consolas,monospace;
  --ease:220ms ease;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-main);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--cyan);}
ul,ol{list-style:none;margin:0;padding:0;}
h1,h2,h3,h4{line-height:1.25;margin:0;font-weight:800;}
p{margin:0 0 16px;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:4px;}

@media (min-width:1200px){
  .container{max-width:1200px;}
}

/* ---------- 按钮 ---------- */
.btn-main,
.btn-line{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:12px 24px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:700;
  letter-spacing:.4px;
  cursor:pointer;
  transition:background var(--ease),color var(--ease),transform var(--ease),box-shadow var(--ease),border-color var(--ease);
  border:1px solid transparent;
  white-space:nowrap;
}
.btn-main{
  background:var(--accent);
  color:#0E1F1C;
}
.btn-main:hover{
  background:#FF7346;
  color:#0E1F1C;
  transform:translateY(-1px);
  box-shadow:0 10px 24px rgba(255,90,43,.32);
}
.btn-main:active{transform:translateY(1px);box-shadow:none;}
.btn-line{
  background:transparent;
  border-color:var(--cyan);
  color:var(--cyan);
}
.btn-line:hover{
  background:var(--cyan-soft);
  color:var(--cyan);
  transform:translateY(-1px);
}
.btn-line:active{transform:translateY(1px);}
.btn-sm-main{padding:9px 18px;min-height:40px;font-size:14px;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:relative;
  z-index:60;
  background:var(--bg-main);
  border-bottom:1px solid var(--line);
}
.nav-top{
  position:sticky;
  top:0;
  z-index:70;
  background:var(--bg-main);
  border-bottom:1px solid var(--line);
}
.nav-top-inner{
  display:flex;
  align-items:center;
  gap:20px;
  height:68px;
}
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.brand-mark{
  width:42px;
  height:42px;
  border-radius:12px;
  overflow:hidden;
  border:1px solid var(--line-strong);
  flex-shrink:0;
  background:var(--bg-soft);
}
.brand-mark img{width:100%;height:100%;object-fit:cover;opacity:.85;}
.brand-text{
  font-size:18px;
  font-weight:800;
  letter-spacing:.5px;
  color:var(--text);
  white-space:nowrap;
}
.brand-text em{
  font-style:normal;
  color:var(--cyan);
}
.nav-search{
  flex:1 1 auto;
  max-width:340px;
  margin-left:auto;
  position:relative;
}
.nav-search input{
  width:100%;
  height:42px;
  padding:0 42px 0 16px;
  border-radius:var(--radius-btn);
  background:var(--bg-deep);
  border:1px solid rgba(255,255,255,.14);
  color:var(--text);
  font-size:14px;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.nav-search input::placeholder{color:var(--text-2);}
.nav-search input:focus{
  outline:none;
  border-color:var(--cyan);
  box-shadow:0 0 0 3px rgba(43,217,196,.16);
}
.nav-search i{
  position:absolute;
  right:15px;
  top:50%;
  transform:translateY(-50%);
  color:var(--text-2);
  font-size:14px;
  pointer-events:none;
}
.nav-cta{margin-left:0;}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border-radius:10px;
  border:1px solid var(--line-strong);
  background:transparent;
  padding:0;
  margin-left:auto;
  cursor:pointer;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
}
.nav-toggle span{
  display:block;
  width:20px;
  height:2px;
  background:var(--text);
  border-radius:2px;
  transition:transform var(--ease),opacity var(--ease);
}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.open span:nth-child(2){opacity:0;}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

.mobile-panel{
  display:none;
  background:var(--bg-deep);
  border-bottom:1px solid var(--line);
}
.mobile-panel.open{display:block;}
.mobile-panel ul{padding:12px 20px 20px;}
.mobile-panel li{border-bottom:1px solid var(--line);}
.mobile-panel li:last-child{border-bottom:none;}
.mobile-panel a{
  display:block;
  padding:13px 4px;
  font-size:15px;
  font-weight:600;
  color:var(--text);
}
.mobile-panel a:hover{color:var(--cyan);}

.nav-channels{
  background:var(--bg-main);
  border-bottom:1px solid var(--line);
}
.channel-list{
  display:flex;
  align-items:center;
  gap:10px;
  height:48px;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.channel-list::-webkit-scrollbar{display:none;}
.channel{
  display:inline-block;
  padding:6px 16px;
  border-radius:999px;
  border:1px solid var(--line-strong);
  background:transparent;
  font-size:14px;
  font-weight:600;
  color:var(--text-2);
  white-space:nowrap;
  transition:all var(--ease);
}
.channel:hover{
  border-color:var(--cyan);
  color:var(--cyan);
}
.channel.active{
  background:var(--accent);
  border-color:var(--accent);
  color:#0E1F1C;
}
.channel.active:hover{color:#0E1F1C;background:#FF7346;border-color:#FF7346;}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  overflow:hidden;
  padding:84px 0 72px;
  background:var(--bg-main);
}
.hero-bg{
  position:absolute;
  inset:0;
  background-size:cover;
  background-position:center;
  opacity:.4;
}
.hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(100deg,rgba(14,31,28,.97) 0%,rgba(14,31,28,.86) 46%,rgba(10,23,20,.72) 100%);
}
.hero-grid{
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(43,217,196,.5) 1px,transparent 1px);
  background-size:26px 26px;
  opacity:.07;
  z-index:1;
}
.hero-inner{position:relative;z-index:2;}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:999px;
  background:var(--cyan-soft);
  border:1px solid rgba(43,217,196,.35);
  color:var(--cyan);
  font-size:13px;
  font-weight:600;
  letter-spacing:.5px;
  margin-bottom:20px;
}
.hero-badge::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--cyan);
}
.hero-title{
  font-size:clamp(30px,4.1vw,48px);
  font-weight:800;
  letter-spacing:.5px;
  margin-bottom:18px;
}
.hero-title em{
  font-style:normal;
  color:var(--cyan);
}
.hero-sub{
  font-size:17px;
  color:var(--text-2);
  max-width:560px;
  margin-bottom:30px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-bottom:44px;
}
.hero-stats{
  display:flex;
  flex-wrap:wrap;
  gap:18px 44px;
  padding-top:24px;
  border-top:1px solid var(--line);
}
.hero-stats li{display:flex;flex-direction:column;}
.hero-stats strong{
  font-family:var(--mono);
  font-size:30px;
  font-weight:700;
  color:var(--cyan);
  line-height:1.1;
  letter-spacing:1px;
}
.hero-stats span{
  font-size:13px;
  color:var(--text-2);
  margin-top:4px;
}
.hero-visual{
  position:relative;
  border-radius:var(--radius-hero);
  overflow:hidden;
  border:1px solid var(--line-strong);
  box-shadow:0 20px 50px rgba(0,0,0,.42);
}
.hero-visual img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
}
.corner-tag{
  position:absolute;
  right:0;
  bottom:0;
  padding:9px 20px 9px 24px;
  background:var(--accent);
  color:#0E1F1C;
  font-size:14px;
  font-weight:800;
  letter-spacing:1px;
  clip-path:polygon(14px 0,100% 0,100% 100%,0 100%);
}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0;}
.section-alt{background:var(--bg-deep);}
.section-head{max-width:740px;margin-bottom:38px;}
.section-head h2{
  font-size:clamp(24px,2.6vw,34px);
  margin-bottom:14px;
}
.section-head h2 span{color:var(--cyan);}
.section-head p{
  color:var(--text-2);
  font-size:16px;
  margin:0;
}
.eyebrow{
  display:inline-block;
  font-family:var(--mono);
  font-size:13px;
  letter-spacing:2px;
  color:var(--accent);
  text-transform:uppercase;
  margin-bottom:12px;
}

/* ---------- 玩法步骤 ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  margin-top:8px;
}
.step{
  position:relative;
  background:var(--bg-soft);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:34px 22px 24px;
  box-shadow:var(--shadow-card);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.step:hover{
  transform:translateY(-3px);
  box-shadow:var(--shadow-hover);
  border-color:rgba(255,90,43,.55);
}
.step:not(:last-child)::after{
  content:"";
  position:absolute;
  top:44%;
  right:-24px;
  width:24px;
  border-top:1px dashed rgba(43,217,196,.45);
}
.step-num{
  position:absolute;
  top:-16px;
  left:22px;
  width:48px;
  height:34px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:9px;
  background:var(--cyan);
  color:#0E1F1C;
  font-family:var(--mono);
  font-size:15px;
  font-weight:700;
  letter-spacing:1px;
}
.step h3{
  font-size:18px;
  font-weight:700;
  margin-bottom:10px;
}
.step p{
  font-size:14.5px;
  color:var(--text-2);
  margin:0;
  line-height:1.75;
}

/* ---------- 奖励预览 ---------- */
.reward-list{display:flex;flex-direction:column;gap:14px;}
.reward-item{
  display:flex;
  align-items:center;
  gap:16px;
  padding:16px;
  background:var(--bg-soft);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  transition:border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.reward-item:hover{
  border-color:rgba(255,90,43,.55);
  transform:translateX(4px);
  box-shadow:var(--shadow-card);
}
.reward-thumb{
  width:72px;
  height:56px;
  flex-shrink:0;
  border-radius:10px;
  overflow:hidden;
  border:1px solid var(--line);
}
.reward-thumb img{width:100%;height:100%;object-fit:cover;}
.reward-text{flex:1 1 auto;min-width:0;}
.reward-text h3{
  font-size:16px;
  font-weight:700;
  margin-bottom:6px;
}
.reward-text p{
  font-size:14px;
  color:var(--text-2);
  margin:0;
  line-height:1.7;
}
.badge-solid{
  flex-shrink:0;
  padding:4px 12px;
  border-radius:999px;
  background:var(--accent);
  color:#0E1F1C;
  font-size:12px;
  font-weight:700;
  letter-spacing:.5px;
}
.badge-soft{
  flex-shrink:0;
  padding:4px 12px;
  border-radius:999px;
  background:var(--cyan-soft);
  border:1px solid rgba(43,217,196,.3);
  color:var(--cyan);
  font-size:12px;
  font-weight:700;
  letter-spacing:.5px;
}
.reward-side{
  background:var(--bg-soft);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-card);
}
.reward-side img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
}
.reward-side-body{padding:22px;}
.reward-side-body h3{
  font-size:18px;
  margin-bottom:12px;
}
.reward-side-body p{
  font-size:14.5px;
  color:var(--text-2);
  margin:0;
  line-height:1.8;
}

/* ---------- 任务进度 ---------- */
.task-panel{
  background:var(--bg-soft);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:28px;
  box-shadow:var(--shadow-card);
}
.task + .task{margin-top:24px;}
.task-head{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:12px;
  margin-bottom:10px;
}
.task-head span{
  font-size:15px;
  font-weight:600;
}
.task-head strong{
  font-family:var(--mono);
  font-size:16px;
  color:var(--cyan);
  letter-spacing:1px;
}
.progress-track{
  height:8px;
  border-radius:999px;
  background:rgba(255,255,255,.10);
  overflow:hidden;
}
.progress-fill{
  height:100%;
  border-radius:999px;
  background:linear-gradient(90deg,var(--accent),var(--cyan));
  transition:width 600ms ease;
}
.task-note{
  font-size:13.5px;
  color:var(--text-2);
  margin:22px 0 0;
  padding-top:20px;
  border-top:1px solid var(--line);
}

/* ---------- 最新信息 ---------- */
.post-card{
  display:flex;
  flex-direction:column;
  height:100%;
  background:var(--bg-soft);
  border:1px solid rgba(255,255,255,.08);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.post-card:hover{
  transform:translateY(-3px);
  box-shadow:var(--shadow-hover);
  border-color:rgba(255,90,43,.55);
}
.post-cover{
  position:relative;
  display:block;
  overflow:hidden;
}
.post-cover img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  transition:transform 400ms ease;
}
.post-card:hover .post-cover img{transform:scale(1.05);}
.post-badge{
  position:absolute;
  left:14px;
  top:14px;
  padding:4px 12px;
  border-radius:999px;
  background:rgba(14,31,28,.82);
  border:1px solid rgba(43,217,196,.4);
  color:var(--cyan);
  font-size:12px;
  font-weight:600;
  backdrop-filter:blur(4px);
}
.post-body{
  display:flex;
  flex-direction:column;
  flex:1 1 auto;
  padding:20px;
}
.post-title{
  font-size:17px;
  font-weight:700;
  line-height:1.5;
  margin-bottom:10px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-title a:hover{color:var(--cyan);}
.post-excerpt{
  font-size:14px;
  color:var(--text-2);
  line-height:1.75;
  margin:0 0 16px;
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-meta{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding-top:14px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-2);
}
.post-link{
  color:var(--accent);
  font-weight:700;
  font-size:13px;
}
.post-link:hover{color:var(--cyan);}

.empty-state{
  padding:60px 24px;
  text-align:center;
  background:var(--bg-soft);
  border:1px dashed var(--line-strong);
  border-radius:var(--radius-card);
}
.empty-icon{
  font-size:34px;
  color:var(--cyan);
  opacity:.6;
  margin-bottom:12px;
  font-family:var(--mono);
}
.empty-state p{
  color:var(--text-2);
  margin:0;
  font-size:15px;
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;}
.faq-item{
  background:var(--bg-soft);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color var(--ease);
}
.faq-item[open]{
  border-color:rgba(255,90,43,.5);
}
.faq-item summary{
  position:relative;
  cursor:pointer;
  list-style:none;
  padding:18px 56px 18px 20px;
  font-size:16px;
  font-weight:700;
  color:var(--text);
  transition:color var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  position:absolute;
  right:20px;
  top:50%;
  transform:translateY(-50%);
  font-family:var(--mono);
  font-size:20px;
  font-weight:700;
  color:var(--cyan);
  transition:transform 200ms ease,color 200ms ease;
}
.faq-item[open] summary::after{
  content:"–";
  color:var(--accent);
}
.faq-item summary:hover{color:var(--cyan);}
.faq-body{
  padding:0 20px 20px 20px;
  border-left:3px solid var(--accent);
  margin-left:20px;
  padding-left:16px;
  font-size:15px;
  color:var(--text-2);
  line-height:1.85;
}
.faq-body p{margin:0;}

/* ---------- CTA 条带 ---------- */
.cta-band{
  background:var(--cyan-soft);
  border-top:1px solid rgba(43,217,196,.35);
  border-bottom:1px solid rgba(43,217,196,.35);
  padding:36px 0;
}
.cta-inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}
.cta-inner p{
  margin:0;
  font-size:clamp(17px,1.8vw,21px);
  font-weight:700;
  letter-spacing:.5px;
}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  background:var(--bg-deep);
  padding:64px 0 0;
  overflow:hidden;
}
.footer-grid{
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,.5) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:44px 44px;
  opacity:.05;
  pointer-events:none;
}
.footer-inner{position:relative;z-index:2;}
.footer-brand{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:16px;
}
.footer-brand .brand-mark{width:38px;height:38px;}
.footer-brand span{
  font-size:17px;
  font-weight:800;
}
.footer-brand span em{font-style:normal;color:var(--cyan);}
.footer-desc{
  font-size:14px;
  color:var(--text-2);
  line-height:1.85;
  max-width:320px;
  margin:0;
}
.footer-title{
  font-size:15px;
  font-weight:700;
  margin-bottom:18px;
  color:var(--text);
}
.footer-links li{margin-bottom:10px;}
.footer-links a{
  font-size:14px;
  color:var(--text-2);
}
.footer-links a:hover{color:var(--cyan);}
.footer-contact{
  font-size:14px;
  color:var(--text-2);
  line-height:2;
}
.footer-contact i{color:var(--cyan);margin-right:8px;width:14px;}
.footer-bottom{
  position:relative;
  z-index:2;
  margin-top:52px;
  border-top:1px solid var(--line);
  padding:20px 0;
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  align-items:center;
  justify-content:space-between;
}
.footer-bottom p{
  margin:0;
  font-size:13px;
  color:var(--text-2);
}
.footer-bottom .tip{font-size:13px;color:var(--text-2);}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .section{padding:72px 0;}
  .hero{padding:68px 0 60px;}
}

@media (max-width:991.98px){
  .nav-search{display:none;}
  .nav-cta{display:none;}
  .nav-toggle{display:flex;}
  .nav-top-inner{height:58px;gap:12px;}
  .brand-text{font-size:16px;}
  .steps{grid-template-columns:repeat(2,1fr);gap:28px;}
  .step:not(:last-child)::after{display:none;}
  .section{padding:60px 0;}
  .hero{padding:56px 0 52px;}
  .hero-visual{margin-top:8px;}
  .hero-stats{gap:16px 36px;}
  .footer-desc{max-width:none;}
}

@media (max-width:767.98px){
  body{font-size:16px;}
  .section{padding:48px 0;}
  .section-head{margin-bottom:28px;}
  .hero{padding:44px 0 44px;}
  .hero-sub{font-size:15.5px;}
  .hero-title{font-size:28px;}
  .hero-actions{gap:10px;margin-bottom:32px;}
  .hero-actions .btn-main,
  .hero-actions .btn-line{flex:1 1 160px;padding:12px 16px;}
  .hero-stats{gap:14px 28px;}
  .hero-stats strong{font-size:24px;}
  .steps{grid-template-columns:1fr;gap:24px;}
  .reward-item{align-items:flex-start;flex-wrap:wrap;}
  .reward-text{flex:1 1 100%;}
  .badge-solid{margin-left:auto;}
  .task-panel{padding:20px 16px;}
  .faq-item summary{font-size:15px;padding:16px 48px 16px 16px;}
  .faq-body{margin-left:16px;padding-left:14px;font-size:14.5px;}
  .cta-band{padding:28px 0;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-inner .btn-main{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

@media (max-width:519.98px){
  .container{padding-left:16px;padding-right:16px;}
  .brand-mark{width:36px;height:36px;}
  .brand-text{font-size:15px;}
  .hero-title{font-size:25px;}
  .post-body{padding:16px;}
  .reward-side-body{padding:16px;}
}

/* roulang page: article */
:root{
  --bg-900:#0E1F1C;
  --bg-850:#102A24;
  --bg-800:#123029;
  --bg-950:#0A1714;
  --accent:#FF5A2B;
  --accent-weak:rgba(255,90,43,.12);
  --cyan:#2BD9C4;
  --cyan-weak:rgba(43,217,196,.12);
  --text:#E8F1EE;
  --text-dim:#9BB0AA;
  --text-ink:#1A2420;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --radius-card:14px;
  --radius-btn:10px;
  --radius-hero:20px;
  --shadow-card:0 4px 18px rgba(0,0,0,.28);
  --shadow-hover:0 10px 30px rgba(255,90,43,.22);
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --font-mono:"DIN Alternate","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --gap-section:80px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:
    radial-gradient(1100px 560px at 88% -8%, rgba(43,217,196,.10), transparent 62%),
    radial-gradient(900px 480px at 2% 4%, rgba(255,90,43,.09), transparent 58%),
    var(--bg-900);
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  opacity:.05;
  background-image:linear-gradient(rgba(255,255,255,.6) 1px, transparent 1px),
                   linear-gradient(90deg, rgba(255,255,255,.6) 1px, transparent 1px);
  background-size:48px 48px;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--cyan);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--accent);}
h1,h2,h3,h4,h5{line-height:1.25;font-weight:800;margin:0;color:var(--text);}
p{margin:0 0 16px;}
ul,ol{margin:0;padding:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;}
.container{max-width:1200px;padding-left:20px;padding-right:20px;position:relative;z-index:1;}
@media (min-width:1400px){.container{max-width:1240px;}}
.section{padding:var(--gap-section) 0;}
.section-head{margin-bottom:32px;}
.section-head h2{font-size:30px;letter-spacing:.5px;}
.section-head p{color:var(--text-dim);margin:10px 0 0;max-width:720px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:2px;
  color:var(--cyan);text-transform:uppercase;margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);display:inline-block;}

/* 按钮 */
.btn{font-weight:700;border-radius:var(--radius-btn);padding:12px 24px;border:1px solid transparent;transition:all .22s ease;font-size:15px;line-height:1.2;}
.btn:focus,.btn:focus-visible{box-shadow:0 0 0 2px var(--cyan);outline:none;}
.btn-primary,.btn-accent{background:var(--accent);color:var(--bg-900) !important;border-color:var(--accent);}
.btn-primary:hover,.btn-accent:hover{filter:brightness(1.08);transform:translateY(-1px);color:var(--bg-900);}
.btn-primary:active,.btn-accent:active{transform:translateY(1px);}
.btn-ghost{background:transparent;color:var(--cyan);border:1px solid var(--cyan);}
.btn-ghost:hover{background:var(--cyan-weak);color:var(--cyan);transform:translateY(-1px);}
.btn-outline-light-soft{background:transparent;border:1px solid var(--line-strong);color:var(--text);}
.btn-outline-light-soft:hover{border-color:var(--cyan);color:var(--cyan);}
.btn-sm{padding:9px 18px;font-size:14px;}

/* 徽章 */
.badge-pill{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:5px 13px;font-size:12.5px;font-weight:700;letter-spacing:.4px;}
.badge-cat{background:var(--cyan-weak);color:var(--cyan);border:1px solid rgba(43,217,196,.35);}
.badge-live{background:var(--accent);color:var(--bg-900);}
.badge-soft{background:rgba(255,255,255,.07);color:var(--text-dim);border:1px solid var(--line);}

/* 导航 */
.site-header{position:relative;z-index:1030;}
.nav-top{
  position:sticky;top:0;z-index:1030;
  background:rgba(14,31,28,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-top-inner{display:flex;align-items:center;gap:20px;height:68px;}
.brand{display:flex;align-items:center;gap:12px;color:var(--text);flex:0 0 auto;}
.brand:hover{color:var(--text);}
.brand-mark{
  width:38px;height:38px;border-radius:11px;overflow:hidden;flex:0 0 auto;
  border:1px solid var(--line-strong);display:flex;align-items:center;justify-content:center;
  background:var(--bg-800);
}
.brand-mark img{width:100%;height:100%;object-fit:cover;opacity:.85;}
.brand-text{font-size:17px;font-weight:800;letter-spacing:.3px;white-space:nowrap;}
.brand-text em{font-style:normal;color:var(--accent);}
.nav-search{
  flex:1 1 auto;max-width:360px;display:flex;align-items:center;gap:10px;
  background:var(--bg-950);border:1px solid var(--line);border-radius:var(--radius-btn);
  padding:8px 14px;margin-left:auto;transition:border-color .2s ease;
}
.nav-search:focus-within{border-color:var(--cyan);}
.nav-search i{color:var(--text-dim);font-size:14px;}
.nav-search input{background:transparent;border:0;color:var(--text);width:100%;font-size:14px;outline:none;}
.nav-search input::placeholder{color:var(--text-dim);}
.nav-cta{flex:0 0 auto;}
.nav-toggle{
  display:none;background:transparent;border:1px solid var(--line-strong);color:var(--text);
  border-radius:10px;width:44px;height:44px;align-items:center;justify-content:center;font-size:17px;
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan);}

.nav-channels{background:var(--bg-800);border-bottom:1px solid var(--line);}
.channel-list{
  display:flex;align-items:center;gap:10px;list-style:none;
  height:48px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;white-space:nowrap;
}
.channel-list::-webkit-scrollbar{display:none;}
.channel{
  display:inline-flex;align-items:center;height:32px;padding:0 16px;border-radius:999px;
  font-size:14px;color:var(--text-dim);border:1px solid var(--line);
  transition:all .2s ease;white-space:nowrap;
}
.channel:hover{color:var(--cyan);border-color:var(--cyan);}
.channel.active{background:var(--accent);border-color:var(--accent);color:var(--bg-900);font-weight:700;}
.nav-drawer{
  display:none;background:var(--bg-850);border-bottom:1px solid var(--line);padding:16px 0;
}
.nav-drawer.open{display:block;}
.nav-drawer .nav-search{max-width:100%;margin:0 0 12px;}
.nav-drawer .btn{width:100%;}

/* 面包屑 */
.breadcrumb-nav{padding:22px 0 0;font-size:13px;color:var(--text-dim);}
.breadcrumb-nav ol{display:flex;flex-wrap:wrap;gap:8px;list-style:none;align-items:center;}
.breadcrumb-nav li::after{content:"›";margin-left:8px;color:var(--text-dim);}
.breadcrumb-nav li:last-child::after{content:"";}
.breadcrumb-nav a{color:var(--text-dim);}
.breadcrumb-nav a:hover{color:var(--cyan);}
.breadcrumb-nav .current{color:var(--text);}

/* 文章头 */
.page-hero{
  position:relative;margin-top:18px;border-radius:var(--radius-hero);overflow:hidden;
  border:1px solid var(--line);background:var(--bg-800);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  opacity:.5;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg, rgba(10,23,20,.94) 0%, rgba(14,31,28,.86) 55%, rgba(18,48,41,.82) 100%);
}
.page-hero .hero-inner{position:relative;z-index:2;padding:44px 40px 40px;}
.page-hero h1{font-size:34px;margin:16px 0 0;max-width:900px;}
.meta-row{display:flex;flex-wrap:wrap;gap:20px;margin-top:16px;color:var(--text-dim);font-size:13.5px;}
.meta-row span{display:inline-flex;align-items:center;gap:7px;}
.meta-row i{color:var(--cyan);}
.hero-divider{height:1px;background:var(--line);margin-top:22px;}

/* 文章布局 */
.article-layout{padding:44px 0 var(--gap-section);}
.article-card{
  background:linear-gradient(180deg, rgba(255,255,255,.035), rgba(255,255,255,.012));
  border:1px solid var(--line);border-radius:var(--radius-card);
  padding:32px;box-shadow:var(--shadow-card);
}
.article-cover{
  border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);margin-bottom:26px;
}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.article-body{max-width:760px;font-size:17px;line-height:1.85;color:#DCE9E5;}
.article-body p{margin:0 0 18px;}
.article-body h2{
  font-size:24px;margin:36px 0 16px;padding-left:14px;position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;
  background:var(--accent);
}
.article-body h3{font-size:19px;font-weight:700;margin:26px 0 12px;}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:2px;list-style:none;}
.article-body li{position:relative;padding-left:20px;margin-bottom:10px;}
.article-body li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;background:var(--cyan);border-radius:1px;
}
.article-body ol{counter-reset:item;}
.article-body ol li{counter-increment:item;}
.article-body ol li::before{
  content:counter(item);width:auto;height:auto;background:transparent;color:var(--cyan);
  font-family:var(--font-mono);font-weight:700;top:0;left:0;font-size:15px;
}
.article-body blockquote{
  margin:22px 0;padding:16px 20px;border-left:3px solid var(--cyan);
  background:rgba(43,217,196,.06);border-radius:0 10px 10px 0;color:#CFE3DE;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:12px;margin:20px 0;max-width:100%;}
.article-body code{
  font-family:var(--font-mono);background:var(--bg-950);color:var(--cyan);
  padding:2px 7px;border-radius:6px;font-size:14.5px;
}
.article-body pre{
  background:var(--bg-950);border:1px solid var(--line);border-radius:10px;
  padding:18px;overflow-x:auto;font-family:var(--font-mono);font-size:14px;color:#CFE3DE;
}
.article-body pre code{background:transparent;padding:0;color:inherit;}
.article-body table{width:100%;border-collapse:collapse;margin:20px 0;font-size:15px;}
.article-body th,.article-body td{
  border:1px solid var(--line);padding:10px 14px;text-align:left;
}
.article-body th{background:rgba(43,217,196,.08);color:var(--cyan);font-weight:700;}
.article-body a{border-bottom:1px dashed rgba(43,217,196,.5);}
.article-body a:hover{border-bottom-color:var(--accent);}

.empty-state{
  text-align:center;padding:56px 20px;border:1px dashed var(--line-strong);border-radius:var(--radius-card);
  background:rgba(255,255,255,.02);
}
.empty-state i{font-size:34px;color:var(--cyan);margin-bottom:14px;display:block;}
.empty-state h2{font-size:22px;margin-bottom:10px;}
.empty-state p{color:var(--text-dim);max-width:520px;margin:0 auto 20px;}

/* 侧栏 */
.sidebar{position:sticky;top:88px;}
.side-card{
  background:linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.012));
  border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px;margin-bottom:24px;box-shadow:var(--shadow-card);
  transition:border-color .22s ease, box-shadow .22s ease;
}
.side-card:hover{border-color:rgba(255,90,43,.4);}
.side-card h3{font-size:16.5px;margin-bottom:16px;display:flex;align-items:center;gap:9px;}
.side-card h3 i{color:var(--accent);font-size:15px;}
.side-list{list-style:none;}
.side-list li{margin-bottom:12px;}
.side-list li:last-child{margin-bottom:0;}
.side-list a{
  display:block;padding-left:0;border-left:2px solid transparent;
  transition:all .2s ease;
}
.side-list a:hover{padding-left:10px;border-left:2px solid var(--accent);}
.side-list .t{display:block;color:var(--text);font-size:14.5px;font-weight:600;line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.side-list a:hover .t{color:var(--cyan);}
.side-list .m{display:block;font-size:12.5px;color:var(--text-dim);margin-top:4px;}
.side-cta{
  background:linear-gradient(150deg, rgba(43,217,196,.10), rgba(255,90,43,.08));
  border:1px solid rgba(43,217,196,.3);
}
.side-cta p{color:var(--text-dim);font-size:14px;margin-bottom:16px;}
.side-cta .btn{width:100%;}
.side-stat{display:flex;justify-content:space-between;align-items:center;padding:10px 0;border-bottom:1px dashed var(--line);font-size:14px;color:var(--text-dim);}
.side-stat:last-child{border-bottom:0;}
.side-stat b{font-family:var(--font-mono);color:var(--cyan);font-size:16px;}

/* FAQ */
.faq-wrap{max-width:900px;margin:0 auto;}
.accordion-item{background:rgba(255,255,255,.025);border:1px solid var(--line);border-radius:var(--radius-card) !important;margin-bottom:12px;overflow:hidden;}
.accordion-button{
  background:transparent;color:var(--text);font-weight:700;font-size:16px;
  padding:18px 22px;box-shadow:none !important;border-left:3px solid transparent;gap:14px;
}
.accordion-button:not(.collapsed){
  background:rgba(255,90,43,.06);color:var(--text);border-left:3px solid var(--accent);
}
.accordion-button:focus{outline:none;box-shadow:0 0 0 2px var(--cyan) inset !important;}
.accordion-button::after{display:none;}
.acc-icon{
  margin-left:auto;width:22px;height:22px;flex:0 0 auto;position:relative;
}
.acc-icon::before,.acc-icon::after{
  content:"";position:absolute;background:var(--cyan);border-radius:2px;transition:transform .2s ease,opacity .2s ease;
}
.acc-icon::before{left:0;right:0;top:10px;height:2px;}
.acc-icon::after{top:0;bottom:0;left:10px;width:2px;}
.accordion-button:not(.collapsed) .acc-icon::after{transform:rotate(90deg);opacity:0;}
.accordion-body{color:var(--text-dim);font-size:15px;line-height:1.85;padding:4px 22px 20px;}

/* CTA 条 */
.cta-band{
  border:1px solid rgba(43,217,196,.32);background:rgba(43,217,196,.08);
  border-radius:var(--radius-card);padding:26px 30px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  margin-top:32px;
}
.cta-band .cta-text{font-size:18px;font-weight:800;color:var(--text);}
.cta-band .cta-sub{font-size:14px;color:var(--text-dim);font-weight:400;display:block;margin-top:6px;}
.back-home{margin-top:20px;font-size:14px;color:var(--text-dim);}
.back-home a{border-bottom:1px dashed rgba(43,217,196,.5);}

/* 页脚 */
.site-footer{
  position:relative;background:var(--bg-950);border-top:1px solid var(--line);
  padding:64px 0 26px;margin-top:20px;overflow:hidden;
}
.footer-grid{
  position:absolute;inset:0;opacity:.06;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.7) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.7) 1px,transparent 1px);
  background-size:40px 40px;
}
.footer-inner{position:relative;z-index:1;}
.footer-brand{display:flex;align-items:center;gap:12px;font-size:17px;font-weight:800;margin-bottom:14px;}
.footer-brand em{font-style:normal;color:var(--accent);}
.footer-desc{color:var(--text-dim);font-size:14px;max-width:330px;}
.footer-title{font-size:15px;margin-bottom:16px;letter-spacing:.5px;}
.footer-links{list-style:none;}
.footer-links li{margin-bottom:10px;}
.footer-links a{color:var(--text-dim);font-size:14px;}
.footer-links a:hover{color:var(--cyan);}
.footer-contact{color:var(--text-dim);font-size:14px;line-height:2;}
.footer-contact i{color:var(--cyan);width:18px;}
.footer-bottom{
  margin-top:38px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--text-dim);
}
.footer-bottom p{margin:0;}

/* 响应式 */
@media (max-width:1199.98px){
  :root{--gap-section:64px;}
  .page-hero h1{font-size:30px;}
}
@media (max-width:991.98px){
  :root{--gap-section:56px;}
  .nav-search{display:none;}
  .nav-cta{display:none;}
  .nav-toggle{display:inline-flex;margin-left:auto;}
  .sidebar{position:static;margin-top:32px;}
  .page-hero .hero-inner{padding:34px 26px 30px;}
}
@media (max-width:767.98px){
  :root{--gap-section:44px;}
  .nav-top-inner{height:58px;}
  .brand-text{font-size:15.5px;}
  .page-hero h1{font-size:24px;}
  .meta-row{gap:14px;font-size:13px;}
  .article-card{padding:20px;}
  .article-body{font-size:16px;}
  .article-body h2{font-size:21px;}
  .cta-band{padding:22px;}
  .section-head h2{font-size:24px;}
}
@media (max-width:519.98px){
  .page-hero .hero-inner{padding:26px 18px 24px;}
  .page-hero h1{font-size:22px;}
  .article-card{padding:16px;}
  .cta-band .btn{width:100%;text-align:center;}
  .footer-bottom{flex-direction:column;}
}

/* roulang page: category1 */
:root{
  --bg:#0E1F1C;
  --bg-deep:#0A1714;
  --bg-soft:#123029;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --text:#E8F1EE;
  --text-dim:#9BB0AA;
  --accent:#FF5A2B;
  --accent-soft:rgba(255,90,43,.14);
  --cyan:#2BD9C4;
  --cyan-soft:rgba(43,217,196,.12);
  --radius-card:14px;
  --radius-btn:10px;
  --radius-hero:20px;
  --shadow-card:0 4px 18px rgba(0,0,0,.28);
  --shadow-hover:0 10px 30px rgba(255,90,43,.22);
  --gap-section:80px;
  --mono:"DIN Alternate","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --sans:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Helvetica Neue",sans-serif;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--text);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--cyan);}
h1,h2,h3,h4{font-weight:800;line-height:1.25;margin:0;letter-spacing:.2px;}
p{margin:0 0 16px;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px;}

.container{max-width:1200px;padding-left:20px;padding-right:20px;margin:0 auto;}

/* ============ 导航 ============ */
.site-header{position:relative;z-index:1040;background:var(--bg);border-bottom:1px solid var(--line);}
.brand-row{
  position:sticky;top:0;z-index:1040;
  background:rgba(14,31,28,.96);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.brand-inner{display:flex;align-items:center;gap:20px;height:68px;}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand-mark{
  width:40px;height:40px;border-radius:12px;overflow:hidden;flex:0 0 auto;
  border:1px solid var(--line-strong);background:var(--bg-soft);
  display:flex;align-items:center;justify-content:center;
}
.brand-mark img{width:100%;height:100%;object-fit:cover;opacity:.72;}
.brand-text{font-size:19px;font-weight:800;color:var(--text);white-space:nowrap;}
.brand-text em{font-style:normal;color:var(--cyan);}
.brand-sub{display:block;font-size:11px;font-weight:400;color:var(--text-dim);letter-spacing:2px;line-height:1.2;}

.brand-search{flex:1 1 auto;max-width:380px;margin-left:auto;}
.brand-search form{display:flex;gap:8px;}
.brand-search input{
  flex:1 1 auto;height:42px;padding:0 14px;border-radius:var(--radius-btn);
  background:var(--bg-deep);border:1px solid var(--line);color:var(--text);
  font-size:14px;transition:border-color .2s ease;
}
.brand-search input::placeholder{color:var(--text-dim);}
.brand-search input:focus{outline:none;border-color:var(--cyan);}
.brand-search button{
  height:42px;padding:0 18px;border:0;border-radius:var(--radius-btn);
  background:var(--accent);color:#0E1F1C;font-weight:700;font-size:14px;
  cursor:pointer;transition:filter .2s ease,transform .2s ease;white-space:nowrap;
}
.brand-search button:hover{filter:brightness(1.08);transform:translateY(-1px);}
.brand-cta{
  flex:0 0 auto;height:42px;padding:0 20px;border-radius:var(--radius-btn);
  background:var(--accent);color:#0E1F1C;font-weight:700;font-size:14px;
  display:inline-flex;align-items:center;gap:8px;
  transition:filter .2s ease,transform .2s ease;
}
.brand-cta:hover{color:#0E1F1C;filter:brightness(1.08);transform:translateY(-1px);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--radius-btn);
  background:transparent;border:1px solid var(--line-strong);color:var(--text);
  align-items:center;justify-content:center;cursor:pointer;margin-left:auto;
}

.nav-channels{background:var(--bg);border-bottom:1px solid var(--line);}
.channel-list{
  display:flex;gap:10px;align-items:center;height:48px;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
}
.channel-list::-webkit-scrollbar{display:none;}
.channel{
  flex:0 0 auto;padding:7px 16px;border-radius:999px;font-size:14px;
  border:1px solid var(--line-strong);color:var(--text-dim);white-space:nowrap;
  transition:all .2s ease;
}
.channel:hover{color:var(--cyan);border-color:var(--cyan);}
.channel.active{background:var(--accent);color:#0E1F1C;border-color:var(--accent);font-weight:700;}
.mobile-panel{display:none;}

/* ============ 页头 ============ */
.page-banner{
  position:relative;overflow:hidden;border-bottom:1px solid var(--line);
  background:
    linear-gradient(180deg,rgba(10,23,20,.86),rgba(14,31,28,.94)),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  min-height:268px;
  display:flex;align-items:center;
}
.page-banner::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(43,217,196,.5) 1px,transparent 1px);
  background-size:26px 26px;opacity:.06;
}
.banner-inner{position:relative;z-index:2;padding:44px 0;}
.crumb{font-size:13px;color:var(--text-dim);margin-bottom:14px;display:flex;gap:8px;align-items:center;flex-wrap:wrap;}
.crumb a{color:var(--text-dim);}
.crumb a:hover{color:var(--cyan);}
.crumb .sep{color:rgba(255,255,255,.28);}
.crumb .cur{color:var(--text);}
.page-banner h1{font-size:36px;margin-bottom:12px;}
.page-banner h1 span{color:var(--cyan);}
.banner-desc{max-width:720px;color:var(--text-dim);font-size:16px;margin:0;}
.banner-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px;}
.tag-pill{
  padding:5px 14px;border-radius:999px;font-size:13px;
  background:var(--cyan-soft);color:var(--cyan);border:1px solid rgba(43,217,196,.3);
}
.tag-pill.hot{background:var(--accent);color:#0E1F1C;border-color:var(--accent);font-weight:700;}

/* ============ 布局 ============ */
main{padding:64px 0 8px;}
.section{padding-bottom:var(--gap-section);}
.split{display:grid;grid-template-columns:264px minmax(0,1fr);gap:44px;align-items:start;}

/* 粘性目录 */
.side-toc{position:sticky;top:96px;}
.toc-box{
  background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px 20px;box-shadow:var(--shadow-card);
}
.toc-title{font-size:13px;letter-spacing:2px;color:var(--text-dim);font-weight:700;margin-bottom:16px;}
.toc-list li+li{margin-top:4px;}
.toc-list a{
  display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:10px;
  font-size:14px;color:var(--text-dim);border-left:2px solid transparent;
  transition:all .2s ease;
}
.toc-list a::before{content:"";width:6px;height:6px;background:var(--cyan);border-radius:2px;flex:0 0 auto;opacity:.6;}
.toc-list a:hover,.toc-list a.active{
  background:rgba(255,255,255,.05);color:var(--text);border-left-color:var(--accent);
}
.toc-list a:hover::before,.toc-list a.active::before{opacity:1;background:var(--accent);}
.toc-note{
  margin-top:18px;padding-top:16px;border-top:1px dashed var(--line);
  font-size:13px;color:var(--text-dim);line-height:1.7;
}
.toc-cta{
  display:block;text-align:center;margin-top:16px;padding:11px 16px;border-radius:var(--radius-btn);
  background:var(--accent);color:#0E1F1C;font-weight:700;font-size:14px;
  transition:filter .2s ease,transform .2s ease;
}
.toc-cta:hover{color:#0E1F1C;filter:brightness(1.08);transform:translateY(-1px);}

/* 通用标题 */
.block-head{margin-bottom:30px;}
.block-head .kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:2px;
  color:var(--cyan);font-weight:700;margin-bottom:10px;
}
.block-head .kicker::before{content:"";width:18px;height:2px;background:var(--accent);border-radius:2px;}
.block-head h2{font-size:27px;margin-bottom:10px;}
.block-head p{color:var(--text-dim);margin:0;max-width:760px;font-size:15px;}

/* 卡片 */
.card-grid{display:grid;gap:22px;grid-template-columns:repeat(3,minmax(0,1fr));}
.card-grid.two{grid-template-columns:repeat(2,minmax(0,1fr));}
.g-card{
  background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);overflow:hidden;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  display:flex;flex-direction:column;height:100%;
}
.g-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(255,90,43,.55);}
.g-card .thumb{aspect-ratio:16/9;overflow:hidden;background:#0A1714;}
.g-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.g-card:hover .thumb img{transform:scale(1.04);}
.g-card .body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.g-card h3{font-size:17px;font-weight:700;}
.g-card p{color:var(--text-dim);font-size:14px;margin:0;flex:1 1 auto;}
.card-top{display:flex;align-items:center;justify-content:space-between;gap:10px;}
.badge-cyan{
  padding:4px 12px;border-radius:999px;font-size:12px;
  background:var(--cyan-soft);color:var(--cyan);border:1px solid rgba(43,217,196,.28);
}
.badge-hot{
  padding:4px 12px;border-radius:999px;font-size:12px;font-weight:700;
  background:var(--accent);color:#0E1F1C;
  clip-path:polygon(10px 0,100% 0,100% 100%,0 100%,0 10px);
}
.card-link{font-size:14px;font-weight:700;color:var(--cyan);display:inline-flex;align-items:center;gap:6px;}
.card-link:hover{gap:10px;color:var(--accent);}
.meta-line{font-size:12.5px;color:var(--text-dim);display:flex;gap:14px;flex-wrap:wrap;}

/* 步骤流 */
.flow{position:relative;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;}
.flow::before{
  content:"";position:absolute;left:6%;right:6%;top:34px;height:1px;
  border-top:1px dashed rgba(43,217,196,.4);
}
.flow-item{position:relative;padding-top:0;}
.flow-num{
  width:68px;height:68px;border-radius:18px;position:relative;z-index:2;
  background:var(--bg-deep);border:1px solid var(--line-strong);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-size:22px;font-weight:700;color:var(--cyan);
  margin-bottom:18px;
}
.flow-item:hover .flow-num{border-color:var(--accent);color:var(--accent);}
.flow-item h3{font-size:16.5px;margin-bottom:8px;}
.flow-item p{color:var(--text-dim);font-size:14px;margin:0;}

/* 排行 / 进度 */
.rank-list{display:grid;gap:14px;}
.rank-item{
  background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:18px 20px;display:grid;grid-template-columns:48px minmax(0,1fr) 120px;gap:16px;
  align-items:center;transition:border-color .2s ease,transform .2s ease;
}
.rank-item:hover{border-color:rgba(43,217,196,.5);transform:translateX(3px);}
.rank-no{font-family:var(--mono);font-size:24px;font-weight:700;color:rgba(232,241,238,.28);}
.rank-item:nth-child(1) .rank-no{color:var(--accent);}
.rank-main h3{font-size:16px;margin-bottom:4px;}
.rank-main p{font-size:13.5px;color:var(--text-dim);margin:0;}
.rank-bar{height:8px;border-radius:999px;background:rgba(255,255,255,.10);overflow:hidden;}
.rank-bar span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--accent),var(--cyan));}
.rank-pct{font-family:var(--mono);font-size:14px;color:var(--cyan);text-align:right;margin-top:6px;}

/* 非对称图文 */
.asym{display:grid;grid-template-columns:1.25fr 1fr;gap:28px;align-items:stretch;}
.asym-media{
  border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);
  background:#0A1714;box-shadow:var(--shadow-card);min-height:280px;
}
.asym-media img{width:100%;height:100%;object-fit:cover;}
.panel{
  background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px;box-shadow:var(--shadow-card);
}
.panel h3{font-size:19px;margin-bottom:14px;}
.dot-list li{position:relative;padding-left:18px;font-size:14.5px;color:var(--text-dim);margin-bottom:11px;}
.dot-list li::before{
  content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:1px;background:var(--cyan);
}
.dot-list li strong{color:var(--text);font-weight:700;}

/* CTA 条带 */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:22px;flex-wrap:wrap;
  background:var(--cyan-soft);border:1px solid rgba(43,217,196,.4);
  border-radius:var(--radius-card);padding:24px 28px;margin-bottom:var(--gap-section);
}
.cta-band p{margin:0;font-size:16.5px;font-weight:700;}
.cta-band .sub{display:block;font-size:13.5px;font-weight:400;color:var(--text-dim);margin-top:6px;}
.btn-primary-x{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 24px;border-radius:var(--radius-btn);border:1px solid var(--accent);
  background:var(--accent);color:#0E1F1C;font-weight:700;font-size:15px;
  transition:filter .2s ease,transform .2s ease;white-space:nowrap;
}
.btn-primary-x:hover{color:#0E1F1C;filter:brightness(1.08);transform:translateY(-1px);}
.btn-primary-x:active{transform:translateY(1px);}
.btn-ghost-x{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 24px;border-radius:var(--radius-btn);
  background:transparent;border:1px solid var(--cyan);color:var(--cyan);
  font-weight:700;font-size:15px;transition:all .2s ease;white-space:nowrap;
}
.btn-ghost-x:hover{background:var(--cyan-soft);color:var(--cyan);transform:translateY(-1px);}

/* FAQ */
.faq-accordion .accordion-item{
  background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius-card);
  margin-bottom:14px;overflow:hidden;
}
.faq-accordion .accordion-button{
  background:transparent;color:var(--text);font-size:16px;font-weight:700;
  padding:18px 22px;box-shadow:none;border-left:3px solid transparent;
}
.faq-accordion .accordion-button:not(.collapsed){
  color:var(--text);background:rgba(255,255,255,.03);border-left-color:var(--accent);
}
.faq-accordion .accordion-button::after{
  background-image:none;content:"+";font-size:20px;font-weight:700;color:var(--cyan);
  width:auto;height:auto;transform:none;transition:transform .2s ease;line-height:1;
}
.faq-accordion .accordion-button:not(.collapsed)::after{content:"–";color:var(--accent);}
.faq-accordion .accordion-button:focus{box-shadow:none;outline:2px solid var(--cyan);outline-offset:-2px;}
.faq-accordion .accordion-body{color:var(--text-dim);font-size:14.5px;padding:4px 22px 22px;}

/* 页脚 */
.site-footer{position:relative;background:var(--bg-deep);border-top:1px solid var(--line);margin-top:20px;overflow:hidden;}
.footer-grid{
  position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.4) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.4) 1px,transparent 1px);
  background-size:44px 44px;opacity:.05;
}
.footer-inner{position:relative;z-index:2;padding:58px 0 26px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;font-size:18px;font-weight:800;}
.footer-brand .brand-mark{width:36px;height:36px;border-radius:10px;}
.footer-brand em{font-style:normal;color:var(--cyan);}
.footer-desc{color:var(--text-dim);font-size:14px;max-width:340px;margin:0;}
.footer-title{font-size:15px;margin-bottom:16px;color:var(--text);}
.footer-links li{margin-bottom:10px;}
.footer-links a{color:var(--text-dim);font-size:14px;}
.footer-links a:hover{color:var(--cyan);}
.footer-contact{color:var(--text-dim);font-size:14px;line-height:2;margin:0;}
.footer-contact i{color:var(--cyan);width:18px;}
.footer-bottom{
  position:relative;z-index:2;margin-top:42px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
}
.footer-bottom p{margin:0;font-size:13px;color:var(--text-dim);}
.footer-bottom .tip{font-size:12.5px;color:rgba(155,176,170,.8);}

/* 响应式 */
@media (max-width:1199px){
  .split{grid-template-columns:224px minmax(0,1fr);gap:32px;}
  .page-banner h1{font-size:32px;}
}
@media (max-width:991px){
  :root{--gap-section:56px;}
  .brand-search{display:none;}
  .brand-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .mobile-panel{
    display:none;background:var(--bg-deep);border-bottom:1px solid var(--line);
    padding:18px 0 22px;
  }
  .mobile-panel.open{display:block;}
  .mobile-panel form{display:flex;gap:8px;margin-bottom:14px;}
  .mobile-panel input{
    flex:1 1 auto;height:44px;padding:0 14px;border-radius:var(--radius-btn);
    background:var(--bg);border:1px solid var(--line);color:var(--text);font-size:14px;
  }
  .mobile-panel input:focus{outline:none;border-color:var(--cyan);}
  .mobile-panel button{
    height:44px;padding:0 18px;border:0;border-radius:var(--radius-btn);
    background:var(--accent);color:#0E1F1C;font-weight:700;cursor:pointer;
  }
  .mobile-panel .brand-cta{display:inline-flex;width:100%;justify-content:center;}
  .split{grid-template-columns:minmax(0,1fr);gap:34px;}
  .side-toc{position:static;}
  .toc-list{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;}
  .toc-list::-webkit-scrollbar{display:none;}
  .toc-list li+li{margin-top:0;}
  .toc-list a{white-space:nowrap;border-left:0;border:1px solid var(--line-strong);border-radius:999px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr));}
  .flow::before{display:none;}
  .asym{grid-template-columns:minmax(0,1fr);}
  .page-banner h1{font-size:28px;}
  main{padding-top:48px;}
}
@media (max-width:767px){
  :root{--gap-section:44px;}
  body{font-size:16px;}
  .brand-inner{height:58px;}
  .brand-text{font-size:16.5px;}
  .brand-sub{display:none;}
  .page-banner{min-height:230px;}
  .banner-inner{padding:32px 0;}
  .page-banner h1{font-size:24px;}
  .banner-desc{font-size:14.5px;}
  .block-head h2{font-size:22px;}
  .card-grid,.card-grid.two{grid-template-columns:minmax(0,1fr);}
  .flow{grid-template-columns:minmax(0,1fr);}
  .flow-num{width:56px;height:56px;font-size:19px;border-radius:14px;}
  .rank-item{grid-template-columns:38px minmax(0,1fr);gap:12px;}
  .rank-progress{grid-column:1 / -1;}
  .cta-band{padding:20px;flex-direction:column;align-items:flex-start;}
  .btn-primary-x,.btn-ghost-x{width:100%;justify-content:center;min-height:46px;}
  .footer-bottom{flex-direction:column;}
}

/* roulang page: category2 */
:root{
  --bg-0:#0A1714;
  --bg-1:#0E1F1C;
  --bg-2:#123029;
  --surface:rgba(255,255,255,.045);
  --surface-2:rgba(255,255,255,.028);
  --text:#E8F1EE;
  --text-2:#9BB0AA;
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.08);
  --accent:#FF5A2B;
  --accent-dark:#0E1F1C;
  --cyan:#2BD9C4;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-hero:20px;
  --shadow-1:0 4px 18px rgba(0,0,0,.28);
  --shadow-2:0 10px 30px rgba(255,90,43,.22);
  --mono:"DIN Alternate","Roboto Mono","SFMono-Regular",Consolas,monospace;
  --sans:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-1);
  color:var(--text);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--cyan);text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease;}
a:hover{color:#7ff0e3;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:800;letter-spacing:.2px;}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
button,input{font-family:inherit;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;}

.container{max-width:1200px;padding-left:20px;padding-right:20px;}
@media (min-width:1400px){.container{max-width:1240px;}}
@media (max-width:767.98px){.container{padding-left:16px;padding-right:16px;}}

/* ============ 顶栏与频道 ============ */
.site-header{background:var(--bg-1);border-bottom:1px solid var(--line);position:relative;z-index:30;}
.topbar{position:sticky;top:0;z-index:40;background:var(--bg-1);border-bottom:1px solid var(--line-soft);}
.topbar-inner{display:flex;align-items:center;gap:20px;height:68px;}
@media (max-width:767.98px){.topbar-inner{height:58px;gap:12px;}}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;color:var(--text);}
.brand:hover{color:var(--text);}
.brand-mark{
  width:40px;height:40px;border-radius:12px;overflow:hidden;flex:0 0 auto;
  border:1px solid rgba(43,217,196,.35);position:relative;background:var(--bg-2);
}
.brand-mark img{width:100%;height:100%;object-fit:cover;opacity:.85;}
.brand-text{font-size:19px;font-weight:800;letter-spacing:.5px;white-space:nowrap;}
.brand-text em{font-style:normal;color:var(--cyan);}
@media (max-width:575.98px){.brand-text{font-size:16px;}.brand-mark{width:34px;height:34px;border-radius:10px;}}
.nav-search{flex:1 1 auto;max-width:340px;position:relative;}
.nav-search input{
  width:100%;height:42px;border-radius:var(--radius-btn);
  background:var(--bg-0);border:1px solid rgba(255,255,255,.14);
  color:var(--text);padding:0 42px 0 14px;font-size:14px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search input::placeholder{color:var(--text-2);}
.nav-search input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(43,217,196,.16);}
.nav-search i{position:absolute;right:14px;top:50%;transform:translateY(-50%);color:var(--text-2);font-size:14px;}
.topbar-cta{margin-left:auto;display:flex;align-items:center;gap:10px;}
@media (max-width:991.98px){.nav-search{display:none;}}

.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--accent);color:var(--accent-dark);font-weight:700;font-size:15px;
  padding:12px 24px;border-radius:var(--radius-btn);border:1px solid transparent;
  min-height:44px;transition:transform .2s ease,filter .2s ease,box-shadow .2s ease;
  box-shadow:0 6px 18px rgba(255,90,43,.22);
}
.btn-main:hover{filter:brightness(1.08);transform:translateY(-1px);color:var(--accent-dark);box-shadow:var(--shadow-2);}
.btn-main:active{transform:translateY(1px);filter:brightness(.96);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:transparent;color:var(--cyan);font-weight:600;font-size:15px;
  padding:12px 24px;border-radius:var(--radius-btn);border:1px solid var(--cyan);
  min-height:44px;transition:background-color .2s ease,transform .2s ease;
}
.btn-ghost:hover{background:rgba(43,217,196,.12);color:var(--cyan);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{padding:9px 18px;font-size:14px;min-height:40px;}

.nav-channels{background:var(--bg-1);border-bottom:1px solid var(--line-soft);}
.channel-list{
  display:flex;align-items:center;gap:10px;height:48px;
  overflow-x:auto;overflow-y:hidden;white-space:nowrap;
  scrollbar-width:none;-ms-overflow-style:none;
}
.channel-list::-webkit-scrollbar{display:none;}
.channel{
  flex:0 0 auto;display:inline-flex;align-items:center;
  padding:6px 16px;border-radius:999px;font-size:14px;font-weight:600;
  color:var(--text-2);border:1px solid var(--line);background:transparent;
  transition:all .2s ease;
}
.channel:hover{color:var(--cyan);border-color:var(--cyan);}
.channel.active{background:var(--accent);border-color:var(--accent);color:var(--accent-dark);}
.channel.active:hover{color:var(--accent-dark);}

/* ============ 页头 ============ */
.page-head{
  position:relative;background-color:var(--bg-2);
  background-image:linear-gradient(rgba(14,31,28,.82),rgba(10,23,20,.92)),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  padding:44px 0 38px;min-height:262px;border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-head::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(43,217,196,.20) 1px,transparent 1px);
  background-size:22px 22px;opacity:.06;
}
.page-head .container{position:relative;z-index:2;}
.breadcrumb-bar{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-2);margin-bottom:14px;flex-wrap:wrap;}
.breadcrumb-bar a{color:var(--text-2);}
.breadcrumb-bar a:hover{color:var(--cyan);}
.breadcrumb-bar .sep{opacity:.6;}
.breadcrumb-bar .current{color:var(--text);}
.page-head h1{font-size:36px;font-weight:800;letter-spacing:.5px;}
.page-head h1 .hl{color:var(--cyan);}
.page-lead{margin-top:14px;max-width:760px;color:var(--text-2);font-size:16px;line-height:1.85;}
@media (max-width:991.98px){.page-head h1{font-size:30px;}.page-head{min-height:240px;padding:36px 0 32px;}}
@media (max-width:575.98px){.page-head h1{font-size:25px;}.page-lead{font-size:15px;}}

.anchor-pills{
  display:flex;gap:10px;margin-top:22px;overflow-x:auto;padding-bottom:4px;
  scrollbar-width:none;-ms-overflow-style:none;white-space:nowrap;
}
.anchor-pills::-webkit-scrollbar{display:none;}
.anchor-pills a{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:999px;font-size:13.5px;font-weight:600;
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text);
  min-height:38px;
}
.anchor-pills a:hover{background:rgba(43,217,196,.14);border-color:var(--cyan);color:var(--cyan);}
.anchor-pills a i{color:var(--cyan);font-size:12px;}

/* ============ 板块 ============ */
.section{padding:72px 0;}
.section.tight{padding:52px 0;}
.section.alt{background:var(--bg-2);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);}
@media (max-width:991.98px){.section{padding:56px 0;}}
@media (max-width:575.98px){.section{padding:42px 0;}}
.section-head{margin-bottom:32px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);
  font-size:12.5px;letter-spacing:1.6px;text-transform:uppercase;color:var(--cyan);margin-bottom:12px;
}
.section-head h2{font-size:28px;font-weight:800;}
.section-head h2::before{
  content:"";display:inline-block;width:4px;height:22px;border-radius:3px;
  background:var(--accent);margin-right:12px;vertical-align:-3px;
}
.section-head .sub{margin-top:12px;color:var(--text-2);max-width:780px;}
@media (max-width:575.98px){.section-head h2{font-size:22px;}}

/* 通用卡片 */
.panel-card{
  background:var(--surface);border:1px solid var(--line-soft);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);padding:20px;height:100%;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.panel-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(255,90,43,.55);}
.panel-card h3{font-size:17px;margin-bottom:10px;font-weight:700;}
.panel-card p{color:var(--text-2);font-size:14.5px;margin-bottom:12px;}
.card-media{
  aspect-ratio:16/9;border-radius:10px;overflow:hidden;margin-bottom:16px;background:var(--bg-0);
}
.card-media img{width:100%;height:100%;object-fit:cover;}
.badge-cyan{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;
  background:rgba(43,217,196,.12);color:var(--cyan);font-size:12.5px;font-weight:600;
}
.badge-accent{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;
  background:var(--accent);color:var(--accent-dark);font-size:12.5px;font-weight:700;
}
.card-link{font-size:14px;font-weight:600;color:var(--cyan);display:inline-flex;align-items:center;gap:6px;}
.card-link:hover{gap:10px;}
.card-link i{font-size:12px;}

/* 双栏非对称图文 */
.split-figure{
  border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line-soft);
  background:var(--bg-0);box-shadow:var(--shadow-1);
}
.split-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.split-note{
  margin-top:16px;padding:16px 18px;border-radius:var(--radius-card);
  background:rgba(43,217,196,.06);border:1px solid rgba(43,217,196,.22);
  color:var(--text-2);font-size:14.5px;
}
.split-note strong{color:var(--text);}

/* 自定义列表 */
.sq-list li{
  position:relative;padding-left:20px;margin-bottom:12px;color:var(--text-2);font-size:15px;
}
.sq-list li:last-child{margin-bottom:0;}
.sq-list li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;
  background:var(--cyan);border-radius:1px;
}
.sq-list li strong{color:var(--text);font-weight:700;}

/* 步骤流 */
.step-flow{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.step-flow::before{
  content:"";position:absolute;left:4%;right:4%;top:38px;height:1px;
  border-top:1px dashed rgba(43,217,196,.40);
}
.step-item{position:relative;padding-top:8px;}
.step-num{
  font-family:var(--mono);font-size:14px;font-weight:700;color:var(--accent-dark);
  width:52px;height:52px;border-radius:14px;background:var(--accent);
  display:flex;align-items:center;justify-content:center;position:relative;z-index:2;
  box-shadow:0 8px 20px rgba(255,90,43,.24);
}
.step-item h3{font-size:17px;margin:18px 0 8px;}
.step-item p{color:var(--text-2);font-size:14.5px;}
@media (max-width:991.98px){
  .step-flow{grid-template-columns:repeat(2,1fr);}
  .step-flow::before{display:none;}
}
@media (max-width:575.98px){
  .step-flow{grid-template-columns:1fr;gap:8px;}
  .step-item{
    padding:16px 0 16px 70px;position:relative;border-left:1px dashed rgba(43,217,196,.4);margin-left:26px;
  }
  .step-num{position:absolute;left:-26px;top:14px;width:52px;height:52px;}
  .step-item h3{margin-top:0;}
}

/* 数据条 */
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.stat-box{
  background:var(--surface-2);border:1px solid var(--line-soft);border-radius:var(--radius-card);
  padding:20px;text-align:left;
}
.stat-box .num{font-family:var(--mono);font-size:28px;font-weight:700;color:var(--cyan);letter-spacing:1px;}
.stat-box .lab{color:var(--text-2);font-size:13.5px;margin-top:6px;}
@media (max-width:767.98px){.stat-strip{grid-template-columns:repeat(2,1fr);}}
@media (max-width:420px){.stat-strip{grid-template-columns:1fr;}}

/* 进度条 */
.progress-item{margin-bottom:20px;}
.progress-item:last-child{margin-bottom:0;}
.progress-top{display:flex;justify-content:space-between;align-items:center;font-size:14.5px;margin-bottom:10px;}
.progress-top .name{color:var(--text);font-weight:600;}
.progress-top .pct{font-family:var(--mono);color:var(--cyan);}
.progress-track{height:8px;border-radius:999px;background:rgba(255,255,255,.10);overflow:hidden;}
.progress-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,var(--accent),var(--cyan));}

/* 术语速查 */
.term-row{
  display:flex;gap:16px;padding:16px 0;border-bottom:1px solid var(--line-soft);
}
.term-row:last-child{border-bottom:none;}
.term-key{
  flex:0 0 148px;font-weight:700;color:var(--text);font-size:15px;
}
.term-val{color:var(--text-2);font-size:14.5px;}
@media (max-width:575.98px){.term-row{flex-direction:column;gap:6px;}.term-key{flex:none;}}

/* CTA 条带 */
.cta-band{
  background:rgba(43,217,196,.08);border:1px solid rgba(43,217,196,.35);
  border-radius:var(--radius-hero);padding:26px 30px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
}
.cta-band .cta-text{font-size:19px;font-weight:700;color:var(--text);}
.cta-band .cta-text span{display:block;font-size:14.5px;font-weight:400;color:var(--text-2);margin-top:6px;}
@media (max-width:575.98px){.cta-band{padding:22px;}.cta-band .cta-text{font-size:17px;}}

/* FAQ */
.faq .accordion-item{
  background:var(--surface);border:1px solid var(--line-soft);border-radius:var(--radius-card);
  margin-bottom:14px;overflow:hidden;
}
.faq .accordion-button{
  background:transparent;color:var(--text);font-size:16px;font-weight:700;
  padding:18px 56px 18px 22px;box-shadow:none;border-radius:0;
}
.faq .accordion-button:not(.collapsed){
  color:var(--text);background:rgba(43,217,196,.06);
  box-shadow:inset 3px 0 0 0 var(--accent);
}
.faq .accordion-button:focus{outline:none;box-shadow:inset 0 0 0 2px rgba(43,217,196,.5);}
.faq .accordion-button::after{
  content:"";position:absolute;right:24px;top:50%;transform:translateY(-50%);
  width:14px;height:2px;background:var(--cyan);background-image:none;border-radius:2px;transition:.2s ease;
}
.faq .accordion-button::before{
  content:"";position:absolute;right:30px;top:50%;transform:translateY(-50%);
  width:2px;height:14px;background:var(--cyan);border-radius:2px;transition:.2s ease;
}
.faq .accordion-button:not(.collapsed)::before{opacity:0;transform:translateY(-50%) rotate(90deg);}
.faq .accordion-body{color:var(--text-2);font-size:15px;padding:6px 22px 22px;line-height:1.85;}

/* 页脚 */
.site-footer{
  position:relative;background:var(--bg-0);border-top:1px solid var(--line);
  padding:60px 0 26px;margin-top:8px;overflow:hidden;
}
.footer-grid{
  position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:52px 52px;opacity:.06;
}
.site-footer .container{position:relative;z-index:2;}
.footer-inner{position:relative;z-index:2;}
.footer-brand{display:flex;align-items:center;gap:12px;font-size:18px;font-weight:800;margin-bottom:14px;}
.footer-brand .brand-mark{width:38px;height:38px;border-radius:11px;}
.footer-brand em{font-style:normal;color:var(--cyan);}
.footer-desc{color:var(--text-2);font-size:14.5px;max-width:420px;}
.footer-title{font-size:15px;font-weight:700;color:var(--text);margin-bottom:16px;letter-spacing:.4px;}
.footer-links li{margin-bottom:10px;}
.footer-links a{color:var(--text-2);font-size:14.5px;}
.footer-links a:hover{color:var(--cyan);}
.footer-contact{color:var(--text-2);font-size:14.5px;line-height:2;}
.footer-contact i{color:var(--cyan);width:18px;margin-right:6px;}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line-soft);
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{color:var(--text-2);font-size:13.5px;margin:0;}
.footer-bottom .tip{color:var(--text-2);font-size:13px;opacity:.85;}

/* 工具类 */
.mono{font-family:var(--mono);}
.text-cyan{color:var(--cyan);}
.divider{height:1px;background:var(--line-soft);margin:28px 0;}