/* roulang page: index */
:root{
  --bg-base:#070A12;
  --bg-section:#0B1220;
  --glass-bg:rgba(18,27,45,0.55);
  --glass-bg-strong:rgba(22,33,54,0.78);
  --glass-border:rgba(255,255,255,0.08);
  --glass-highlight:inset 0 1px 0 rgba(255,255,255,0.06);
  --c-primary:#2FE0C6;
  --c-primary-hi:#56EBD4;
  --c-primary-deep:#17B49C;
  --c-accent:#FF8A3C;
  --c-violet:#7B6BFF;
  --state-success:#3ED598;
  --state-warn:#FFC24B;
  --state-danger:#FF5F6D;
  --t1:#E9EFF8;
  --t2:#A6B4CB;
  --t3:#66748C;
  --radius-card:16px;
  --radius-panel:20px;
  --radius-btn:12px;
  --radius-input:10px;
  --shadow-card:0 12px 32px rgba(0,0,0,0.45);
  --shadow-btn:0 0 0 1px rgba(47,224,198,0.50), 0 10px 30px -8px rgba(47,224,198,0.55);
  --shadow-btn-hover:0 0 0 1px rgba(47,224,198,0.90), 0 14px 40px -6px rgba(47,224,198,0.70);
  --sidebar-w:248px;
  --container:1200px;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:Inter,"JetBrains Mono",ui-monospace,tabular-nums,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--t2);
  background:var(--bg-base);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:linear-gradient(rgba(255,255,255,0.03) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,0.03) 1px,transparent 1px);
  background-size:48px 48px;
}
body.no-scroll{overflow:hidden}
h1,h2,h3,h4{margin:0;color:var(--t1);font-weight:700;letter-spacing:-0.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-primary-hi)}
img{max-width:100%;display:block;border-radius:12px;object-fit:cover}
button,input,textarea{font-family:inherit;font-size:inherit;color:inherit}
::selection{background:rgba(47,224,198,0.28);color:#fff}
:focus-visible{outline:2px solid rgba(47,224,198,0.90);outline-offset:2px;border-radius:6px}
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:rgba(255,255,255,0.14);border-radius:999px}
::-webkit-scrollbar-thumb:hover{background:rgba(255,255,255,0.24)}

/* ============ 侧边竖向导航 ============ */
.sidebar{
  position:fixed;
  top:0;
  left:0;
  width:var(--sidebar-w);
  height:100vh;
  display:flex;
  flex-direction:column;
  padding:0 16px 20px;
  background:var(--glass-bg-strong);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-right:1px solid var(--glass-border);
  z-index:60;
}
.brand{
  height:88px;
  display:flex;
  align-items:center;
  gap:12px;
  border-bottom:1px solid var(--glass-border);
  margin-bottom:20px;
}
.brand-mark{
  width:32px;height:32px;flex:0 0 32px;
  border-radius:9px;
  border:1px solid rgba(47,224,198,0.55);
  background:rgba(47,224,198,0.10);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 0 18px -6px rgba(47,224,198,0.7);
}
.brand-mark svg{width:18px;height:18px;stroke:var(--c-primary)}
.brand-text{display:flex;flex-direction:column;line-height:1.3}
.brand-name{font-size:15px;font-weight:700;color:var(--t1);letter-spacing:0}
.brand-sub{font-size:12px;color:var(--t3)}
.nav-group{margin-bottom:18px}
.nav-group-title{
  font-size:12px;color:var(--t3);
  padding:0 16px;margin-bottom:8px;
  letter-spacing:0.04em;
}
.nav-item{
  position:relative;
  display:flex;
  align-items:center;
  gap:10px;
  height:44px;
  padding:0 16px;
  border-radius:10px;
  font-size:14px;
  color:var(--t2);
  transition:background .18s ease,color .18s ease;
}
.nav-item svg{width:18px;height:18px;flex:0 0 18px;stroke:currentColor;opacity:.85}
.nav-item:hover{background:rgba(255,255,255,0.04);color:var(--t1)}
.nav-item.is-active{
  background:rgba(47,224,198,0.10);
  color:var(--t1);
  font-weight:600;
}
.nav-item.is-active::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;
  border-radius:0 3px 3px 0;background:var(--c-primary);
}
.side-foot{margin-top:auto;padding-top:16px;border-top:1px solid var(--glass-border)}
.side-foot .btn{width:100%;justify-content:center;margin-bottom:12px}
.side-note{font-size:13px;line-height:1.6;color:var(--t3)}

/* ============ 移动端顶栏与抽屉 ============ */
.topbar{
  display:none;
  position:fixed;top:0;left:0;right:0;height:56px;
  z-index:80;
  align-items:center;justify-content:space-between;
  padding:0 16px;
  background:rgba(7,10,18,0.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--glass-border);
}
.topbar-logo{font-size:15px;font-weight:700;color:var(--t1)}
.hamburger{
  width:44px;height:44px;
  display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;
  background:none;border:0;cursor:pointer;padding:0;
}
.hamburger span{display:block;width:20px;height:2px;background:var(--c-primary);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.hamburger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger.is-open span:nth-child(2){opacity:0}
.hamburger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.drawer-mask{
  display:none;
  position:fixed;inset:0;z-index:88;
  background:rgba(4,7,12,0.70);
  backdrop-filter:blur(4px);
}
.drawer-mask.is-open{display:block}
.drawer{
  position:fixed;top:0;right:0;bottom:0;
  width:84vw;max-width:320px;
  z-index:90;
  transform:translateX(102%);
  transition:transform .26s ease-out;
  background:var(--glass-bg-strong);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-left:1px solid var(--glass-border);
  padding:20px 16px;
  display:flex;flex-direction:column;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer .nav-item{height:48px}
.drawer-foot{margin-top:auto;padding-top:16px;border-top:1px solid var(--glass-border)}

/* ============ 页面容器 ============ */
.page{position:relative;z-index:1;margin-left:var(--sidebar-w)}
.container{max-width:var(--container);margin:0 auto;padding:0 32px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;
  border-radius:999px;
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .18s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
  white-space:nowrap;
  font-family:inherit;
}
.btn-primary{
  background:linear-gradient(180deg,var(--c-primary-hi),var(--c-primary-deep));
  color:#04241F;
  box-shadow:var(--shadow-btn);
}
.btn-primary:hover{box-shadow:var(--shadow-btn-hover);transform:translateY(-1px);color:#04241F}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(47,224,198,0.6),0 6px 18px -8px rgba(47,224,198,0.6)}
.btn-ghost{
  background:transparent;
  border-color:var(--glass-border);
  color:var(--t1);
}
.btn-ghost:hover{background:rgba(255,255,255,0.06);border-color:rgba(47,224,198,0.30);color:var(--t1)}
.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.btn.is-loading{pointer-events:none;opacity:.8}
.btn .spinner{
  width:14px;height:14px;border-radius:50%;
  border:2px solid rgba(4,36,31,0.35);
  border-top-color:#04241F;
  display:none;
  animation:spin .8s linear infinite;
}
.btn.is-loading .spinner{display:block}
@keyframes spin{to{transform:rotate(360deg)}}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--c-primary);
}
.text-link:hover{color:var(--c-primary-hi);text-decoration:underline;text-underline-offset:3px}

/* ============ 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;
  height:24px;padding:0 12px;
  border-radius:999px;
  border:1px solid var(--glass-border);
  font-size:12px;color:var(--t2);
  background:transparent;
  letter-spacing:0.02em;
}
.badge.is-primary{
  border-color:rgba(47,224,198,0.35);
  background:rgba(47,224,198,0.10);
  color:var(--c-primary);
}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--glass-border)}
.hero-bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,10,18,0.72) 0%,rgba(7,10,18,0.86) 58%,var(--bg-base) 100%);
}
.hero-glow{
  position:absolute;inset:0;
  background:radial-gradient(900px 460px at 12% -6%,rgba(47,224,198,0.20),transparent 68%);
  pointer-events:none;
}
.hero-inner{
  position:relative;
  min-height:620px;
  display:flex;
  flex-direction:column;
  justify-content:center;
  padding:120px 0 96px;
}
.hero-copy{max-width:720px}
.hero-title{
  font-size:40px;line-height:52px;
  margin-bottom:20px;
}
.hero-title em{font-style:normal;color:var(--c-primary)}
.hero-lead{
  font-size:18px;line-height:1.7;color:var(--t1);
  margin-bottom:14px;font-weight:600;
}
.hero-desc{font-size:16px;line-height:28px;color:var(--t2);max-width:620px;margin-bottom:32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-trust{display:flex;flex-wrap:wrap;gap:12px 26px}
.trust-item{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--t2)}
.trust-item svg{width:16px;height:16px;stroke:var(--c-primary);flex:0 0 16px}
.hero-stat{
  position:absolute;right:0;bottom:64px;
  width:300px;
  background:var(--glass-bg);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-panel);
  box-shadow:var(--shadow-card),var(--glass-highlight);
  padding:22px 24px;
}
.stat-row{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding:10px 0}
.stat-row + .stat-row{border-top:1px solid var(--glass-border)}
.stat-num{font-family:var(--font-num);font-size:28px;font-weight:700;color:var(--c-primary);letter-spacing:-0.01em}
.stat-num.is-accent{color:var(--c-accent)}
.stat-label{font-size:12px;color:var(--t3);text-align:right;line-height:1.5}

/* ============ 通用板块 ============ */
.section{padding:96px 0;position:relative}
.section.is-alt{background:var(--bg-section)}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:40px;flex-wrap:wrap;
}
.section-head h2{font-size:30px;line-height:40px}
.section-sub{font-size:14px;color:var(--t3);margin-top:10px;max-width:620px}

/* ============ 三步上手 ============ */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;position:relative}
.step{
  position:relative;
  background:var(--glass-bg);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card),var(--glass-highlight);
  padding:26px;
  transition:transform .2s ease-out,border-color .2s ease-out;
}
.step:hover{transform:translateY(-4px);border-color:rgba(47,224,198,0.30)}
.step-num{
  width:40px;height:40px;
  display:flex;align-items:center;justify-content:center;
  border-radius:12px;
  border:1px solid rgba(47,224,198,0.55);
  background:rgba(47,224,198,0.08);
  color:var(--c-primary);
  font-family:var(--font-num);font-size:15px;font-weight:700;
  margin-bottom:16px;
  box-shadow:0 0 20px -8px rgba(47,224,198,0.8);
}
.step h3{font-size:20px;line-height:30px;margin-bottom:8px}
.step p{font-size:14px;line-height:24px;color:var(--t2)}
.section-foot{
  margin-top:32px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  padding-top:22px;border-top:1px solid var(--glass-border);
}
.section-foot p{font-size:14px;color:var(--t3)}

/* ============ 案例证明 ============ */
.case-grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:24px;
}
.case-card{
  display:flex;gap:22px;
  background:var(--glass-bg);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card),var(--glass-highlight);
  padding:24px;
  transition:transform .2s ease-out,border-color .2s ease-out;
}
.case-card:hover{transform:translateY(-4px);border-color:rgba(47,224,198,0.30)}
.case-card-lg{grid-column:span 7;flex-direction:column}
.case-card-sm{grid-column:span 5}
.case-card-sm + .case-card-sm{margin-top:0}
.case-col{grid-column:span 5;display:flex;flex-direction:column;gap:24px}
.case-media{
  flex:0 0 40%;
  border-radius:12px;overflow:hidden;
  aspect-ratio:1/1;
  background:var(--bg-section);
}
.case-card-lg .case-media{flex:none;width:100%;aspect-ratio:16/9}
.case-media img{width:100%;height:100%;object-fit:cover;border-radius:12px}
.case-body{flex:1;min-width:0}
.case-result{
  font-family:var(--font-num);
  font-size:28px;font-weight:700;color:var(--c-accent);
  line-height:1.2;margin:14px 0 10px;
}
.case-result span{font-size:14px;color:var(--t2);font-family:var(--font-sans);font-weight:500;margin-left:6px}
.case-body p{font-size:14px;line-height:24px;color:var(--t2)}

/* ============ FAQ ============ */
.faq-wrap{max-width:880px;padding-left:16px}
.faq-item{position:relative;border-bottom:1px solid var(--glass-border)}
.faq-item:first-child{border-top:1px solid var(--glass-border)}
.faq-item.is-open::before{
  content:"";position:absolute;left:-16px;top:0;bottom:0;
  width:2px;background:var(--c-primary);
}
.faq-q{
  width:100%;min-height:64px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:none;border:0;padding:0 4px 0 0;
  color:var(--t1);font-size:16px;line-height:24px;text-align:left;
  cursor:pointer;font-weight:500;
  transition:color .18s ease;
}
.faq-q:hover{color:var(--c-primary-hi)}
.faq-icon{
  flex:0 0 18px;width:18px;height:18px;
  position:relative;
  transition:transform .2s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--c-primary);border-radius:2px;
}
.faq-icon::before{left:0;right:0;top:8px;height:2px}
.faq-icon::after{top:0;bottom:0;left:8px;width:2px}
.faq-item.is-open .faq-icon{transform:rotate(180deg)}
.faq-item.is-open .faq-icon::after{opacity:0}
.faq-a{
  display:none;
  padding:0 60px 18px 0;
  font-size:15px;line-height:26px;color:var(--t2);
}
.faq-item.is-open .faq-a{display:block;padding-top:2px}

/* ============ 最新信息 ============ */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{
  display:flex;flex-direction:column;
  background:var(--glass-bg);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card),var(--glass-highlight);
  padding:18px;
  color:inherit;
  transition:transform .2s ease-out,border-color .2s ease-out;
}
.post-card:hover{transform:translateY(-4px);border-color:rgba(47,224,198,0.30);color:inherit}
.post-cover{
  aspect-ratio:16/9;border-radius:12px;overflow:hidden;
  background:linear-gradient(135deg,#0F1A2E,#16233A);
  margin-bottom:16px;
}
.post-cover img{width:100%;height:100%;object-fit:cover;border-radius:12px;transition:transform .3s ease}
.post-card:hover .post-cover img{transform:scale(1.04)}
.post-card .badge{align-self:flex-start;margin-bottom:12px}
.post-title{
  font-size:18px;line-height:26px;color:var(--t1);font-weight:600;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin-bottom:10px;
}
.post-excerpt{
  font-size:14px;line-height:24px;color:var(--t2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin-bottom:16px;
}
.post-meta{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--glass-border);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
}
.post-meta time{font-family:var(--font-num);font-size:13px;color:var(--t3)}
.post-meta svg{width:16px;height:16px;stroke:var(--c-primary)}
.empty-state{
  padding:64px 24px;
  display:flex;flex-direction:column;align-items:center;gap:14px;
  text-align:center;
  border:1px dashed var(--glass-border);
  border-radius:var(--radius-card);
  background:var(--glass-bg);
}
.empty-state svg{width:48px;height:48px;stroke:rgba(47,224,198,0.40)}
.empty-state p{font-size:14px;color:var(--t3)}

/* ============ CTA 表单 ============ */
.cta-panel{
  background:var(--glass-bg);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-panel);
  box-shadow:var(--shadow-card),var(--glass-highlight);
  padding:48px;
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:48px;
}
.cta-copy h2{font-size:30px;line-height:40px;margin-bottom:16px}
.cta-copy p{font-size:15px;line-height:26px;color:var(--t2);max-width:400px}
.cta-points{margin-top:26px;display:flex;flex-direction:column;gap:12px}
.cta-points li{display:flex;gap:10px;font-size:14px;line-height:22px;color:var(--t2)}
.cta-points li svg{width:16px;height:16px;flex:0 0 16px;stroke:var(--c-primary);margin-top:4px}
.form{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:8px}
.field.is-full{grid-column:1/-1}
.field label{font-size:13px;color:var(--t3)}
.field input,.field textarea{
  width:100%;
  background:rgba(255,255,255,0.04);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-input);
  padding:12px 14px;
  color:var(--t1);
  font-size:15px;
  line-height:24px;
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.field textarea{resize:vertical;min-height:104px}
.field input::placeholder,.field textarea::placeholder{color:var(--t3)}
.field input:focus,.field textarea:focus{
  outline:none;
  border-color:var(--c-primary);
  background:rgba(47,224,198,0.05);
  box-shadow:0 0 0 3px rgba(47,224,198,0.15);
}
.field input.is-error,.field textarea.is-error{
  border-color:var(--state-danger);
  box-shadow:0 0 0 3px rgba(255,95,109,0.14);
}
.field-error{display:none;font-size:13px;color:var(--state-danger)}
.form-actions{grid-column:1/-1;display:flex;justify-content:flex-end}
.form-actions .btn{width:200px}
.form-note{grid-column:1/-1;font-size:12px;color:var(--t3);line-height:1.7}
.form-status{grid-column:1/-1;font-size:14px;line-height:1.6;display:none}
.form-status.is-success{display:block;color:var(--state-success)}
.form-status.is-error{display:block;color:var(--state-danger)}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--bg-section);
  border-top:1px solid var(--glass-border);
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:40px;
  border-bottom:1px solid var(--glass-border);
}
.footer-brand{display:flex;gap:12px;align-items:flex-start}
.footer-brand .brand-mark{margin-top:2px}
.footer-brand h3{font-size:16px;line-height:1.4;margin-bottom:6px}
.footer-brand p{font-size:13px;line-height:24px;color:var(--t3);max-width:280px}
.footer-title{font-size:14px;font-weight:600;color:var(--t1);margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a,.footer-links span{font-size:14px;color:var(--t3);transition:color .18s ease}
.footer-links a:hover{color:var(--c-primary)}
.footer-bottom{
  padding-top:24px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:var(--t3)}
.footer-bottom .sep{color:var(--glass-border);margin:0 8px}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .hero-stat{width:270px;bottom:48px}
}
@media (max-width:1023px){
  .sidebar{display:none}
  .topbar{display:flex}
  .page{margin-left:0}
  .hero-inner{padding:112px 0 72px;min-height:480px}
  .hero-stat{position:static;width:100%;max-width:420px;margin-top:36px;bottom:auto}
  .container{padding:0 20px}
  .section{padding:72px 0}
  .steps{grid-template-columns:1fr;gap:20px}
  .step{display:flex;gap:18px;align-items:flex-start}
  .step-num{margin-bottom:0;flex:0 0 40px}
  .case-grid{grid-template-columns:1fr}
  .case-card-lg,.case-card-sm,.case-col{grid-column:1/-1}
  .cta-panel{grid-template-columns:1fr;gap:32px;padding:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  body{font-size:15px}
  .hero-title{font-size:28px;line-height:40px}
  .hero-lead{font-size:16px}
  .section-head h2,.cta-copy h2{font-size:24px;line-height:34px}
  .section-head{margin-bottom:28px}
  .post-grid{grid-template-columns:1fr}
  .case-card{flex-direction:column;gap:18px}
  .case-media{flex:none;width:100%;aspect-ratio:16/9}
  .form{grid-template-columns:1fr}
  .form-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .faq-a{padding-right:0}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .hero-trust{flex-direction:column;gap:10px}
  .cta-panel{padding:24px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category1 */
:root{
  --bg-base:#070A12;
  --bg-section:#0B1220;
  --glass-bg:rgba(18,27,45,0.55);
  --glass-bg-strong:rgba(22,33,54,0.78);
  --glass-border:rgba(255,255,255,0.08);
  --glass-inner:inset 0 1px 0 rgba(255,255,255,0.06);
  --c-primary:#2FE0C6;
  --c-primary-hi:#56EBD4;
  --c-primary-deep:#17B49C;
  --c-accent:#FF8A3C;
  --c-violet:#7B6BFF;
  --c-success:#3ED598;
  --c-warn:#FFC24B;
  --c-danger:#FF5F6D;
  --t1:#E9EFF8;
  --t2:#A6B4CB;
  --t3:#66748C;
  --radius-card:16px;
  --radius-panel:20px;
  --radius-btn:12px;
  --shadow-card:0 12px 32px rgba(0,0,0,0.45);
  --shadow-glow:0 0 0 1px rgba(47,224,198,0.5),0 10px 30px -8px rgba(47,224,198,0.55);
  --shadow-glow-hi:0 0 0 1px rgba(47,224,198,0.9),0 14px 40px -6px rgba(47,224,198,0.7);
  --sidebar-w:248px;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:Inter,"JetBrains Mono",ui-monospace,tabular-nums,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--t2);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:28px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,0.03) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,0.03) 1px,transparent 1px);
  background-size:48px 48px;
  z-index:0;
}
body.is-locked{overflow:hidden;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;object-fit:cover;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease-out;}
a:hover{color:var(--c-primary-hi);}
button{font-family:inherit;background:none;border:0;cursor:pointer;color:inherit;}
:focus-visible{outline:2px solid rgba(47,224,198,0.9);outline-offset:2px;border-radius:6px;}
::-webkit-scrollbar{width:8px;height:8px;}
::-webkit-scrollbar-track{background:transparent;}
::-webkit-scrollbar-thumb{background:rgba(255,255,255,0.14);border-radius:999px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}

/* ============ 侧边导航 ============ */
.sidebar{
  position:fixed;
  top:0;left:0;
  width:var(--sidebar-w);
  height:100vh;
  background:var(--glass-bg-strong);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-right:1px solid var(--glass-border);
  display:flex;
  flex-direction:column;
  z-index:60;
}
.sidebar-brand{
  display:flex;
  align-items:center;
  gap:12px;
  padding:20px 20px 18px;
  border-bottom:1px solid var(--glass-border);
  min-height:88px;
}
.brand-mark{
  flex:0 0 32px;
  width:32px;height:32px;
  display:grid;place-items:center;
  border:1px solid rgba(47,224,198,0.5);
  border-radius:10px;
  box-shadow:0 0 18px -6px rgba(47,224,198,0.7);
}
.brand-mark svg{width:18px;height:18px;stroke:var(--c-primary);}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text .b-main{color:var(--t1);font-size:15px;font-weight:700;letter-spacing:.01em;}
.brand-text .b-sub{color:var(--t3);font-size:12px;margin-top:2px;}
.sidebar-scroll{flex:1;overflow-y:auto;padding:18px 12px;}
.nav-group{margin-bottom:22px;}
.nav-group-title{
  font-size:12px;
  color:var(--t3);
  padding:0 16px;
  margin-bottom:8px;
  letter-spacing:.06em;
}
.nav-item{
  position:relative;
  display:flex;
  align-items:center;
  gap:10px;
  height:44px;
  padding:0 16px;
  border-radius:10px;
  color:var(--t2);
  font-size:14px;
  transition:background .2s ease-out,color .2s ease-out;
}
.nav-item svg{width:18px;height:18px;stroke:currentColor;flex:0 0 18px;}
.nav-item:hover{background:rgba(255,255,255,0.04);color:var(--t1);}
.nav-item.is-active{
  background:rgba(47,224,198,0.10);
  color:var(--t1);
}
.nav-item.is-active::before{
  content:"";
  position:absolute;
  left:0;top:10px;bottom:10px;
  width:3px;
  border-radius:999px;
  background:var(--c-primary);
  box-shadow:0 0 12px rgba(47,224,198,0.8);
}
.sidebar-foot{
  padding:16px 18px 22px;
  border-top:1px solid var(--glass-border);
}
.sidebar-foot .btn{width:100%;}
.sidebar-foot .foot-note{
  margin-top:12px;
  font-size:13px;
  line-height:20px;
  color:var(--t3);
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  letter-spacing:.02em;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background .2s ease-out,color .2s ease-out,border-color .2s ease-out;
  white-space:nowrap;
}
.btn-primary{
  background:var(--c-accent);
  color:#1B0E04;
  box-shadow:0 0 0 1px rgba(255,138,60,0.5),0 10px 30px -8px rgba(255,138,60,0.6);
}
.btn-primary:hover{
  color:#1B0E04;
  transform:translateY(-1px);
  box-shadow:0 0 0 1px rgba(255,138,60,0.9),0 14px 40px -6px rgba(255,138,60,0.75);
}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(255,138,60,0.7),0 6px 18px -8px rgba(255,138,60,0.6);}
.btn-ghost{
  background:transparent;
  color:var(--t1);
  border:1px solid var(--glass-border);
  box-shadow:var(--glass-inner);
}
.btn-ghost:hover{background:rgba(255,255,255,0.06);color:var(--t1);border-color:rgba(47,224,198,0.35);}
.btn-ghost:active{transform:translateY(1px);}
.btn[disabled]{opacity:.45;cursor:not-allowed;}
.btn-text{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--c-primary);
  font-size:14px;
  font-weight:600;
}
.btn-text svg{width:16px;height:16px;stroke:currentColor;transition:transform .2s ease-out;}
.btn-text:hover{color:var(--c-primary-hi);text-decoration:underline;text-underline-offset:3px;}
.btn-text:hover svg{transform:translateX(3px);}

/* ============ 顶栏（移动端） ============ */
.topbar{
  position:fixed;
  top:0;left:0;right:0;
  height:56px;
  display:none;
  align-items:center;
  justify-content:space-between;
  padding:0 16px;
  background:rgba(7,10,18,0.92);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--glass-border);
  z-index:70;
}
.topbar .tb-brand{display:flex;align-items:center;gap:10px;color:var(--t1);font-size:15px;font-weight:700;}
.topbar .tb-brand .brand-mark{flex:0 0 28px;width:28px;height:28px;}
.topbar .tb-brand .brand-mark svg{width:16px;height:16px;}
.burger{
  width:44px;height:44px;
  display:grid;place-items:center;gap:5px;
  border-radius:10px;
}
.burger span{display:block;width:20px;height:2px;background:var(--c-primary);border-radius:2px;}
.burger:hover{background:rgba(255,255,255,0.05);}

.drawer-mask{
  position:fixed;inset:0;
  background:rgba(4,7,12,0.70);
  -webkit-backdrop-filter:blur(4px);
  backdrop-filter:blur(4px);
  opacity:0;visibility:hidden;
  transition:opacity .25s ease-out,visibility .25s;
  z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;
  width:84vw;max-width:320px;height:100vh;
  background:var(--glass-bg-strong);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border-left:1px solid var(--glass-border);
  transform:translateX(102%);
  transition:transform .28s ease-out;
  z-index:90;
  display:flex;flex-direction:column;
  padding:20px 14px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer .drawer-head{display:flex;align-items:center;justify-content:space-between;padding:0 6px 16px;border-bottom:1px solid var(--glass-border);}
.drawer .drawer-head .d-title{color:var(--t1);font-size:15px;font-weight:700;}
.drawer .drawer-close{width:40px;height:40px;border-radius:10px;display:grid;place-items:center;color:var(--t2);font-size:20px;line-height:1;}
.drawer .drawer-close:hover{background:rgba(255,255,255,0.06);color:var(--t1);}
.drawer .nav-item{height:48px;}
.drawer .drawer-foot{margin-top:auto;padding-top:18px;}
.drawer .drawer-foot .btn{width:100%;height:48px;}

/* ============ 主体 ============ */
.main-content{
  margin-left:var(--sidebar-w);
  position:relative;
  z-index:1;
}
.page-banner{
  position:relative;
  min-height:340px;
  display:flex;
  align-items:flex-end;
  padding:72px 0 40px;
  background-image:linear-gradient(180deg,rgba(7,10,18,0.78),rgba(7,10,18,0.92)),url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.page-banner::after{
  content:"";
  position:absolute;inset:0;
  background:radial-gradient(900px 420px at 12% -10%,rgba(47,224,198,0.20),transparent 68%);
  pointer-events:none;
}
.page-banner .container{position:relative;z-index:1;}

.breadcrumb{font-size:13px;color:var(--t3);margin-bottom:18px;}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.breadcrumb li{display:flex;align-items:center;gap:8px;}
.breadcrumb li::after{content:"/";color:var(--t3);}
.breadcrumb li:last-child::after{content:"";}
.breadcrumb a{color:var(--t2);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .current{color:var(--t3);}

h1.page-title{
  font-size:40px;
  line-height:52px;
  font-weight:700;
  letter-spacing:-0.01em;
  color:var(--t1);
  max-width:820px;
}
h1.page-title .hl{color:var(--c-primary);}
.page-lead{
  margin-top:16px;
  max-width:760px;
  font-size:16px;
  line-height:28px;
  color:var(--t2);
}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:28px;
  padding:0 12px;
  border-radius:999px;
  border:1px solid var(--glass-border);
  color:var(--t2);
  font-size:12px;
  letter-spacing:.02em;
  background:transparent;
}
.badge.is-strong{
  background:rgba(47,224,198,0.10);
  border-color:rgba(47,224,198,0.35);
  color:var(--c-primary);
}

.section{padding:96px 0;}
.section.alt{background:var(--bg-section);border-top:1px solid var(--glass-border);border-bottom:1px solid var(--glass-border);}
.section-head{max-width:820px;margin-bottom:48px;}
h2.section-title{
  font-size:30px;
  line-height:40px;
  font-weight:700;
  color:var(--t1);
  letter-spacing:-0.01em;
}
.section-desc{margin-top:14px;font-size:16px;line-height:28px;color:var(--t2);}

/* 图文分区 40/60 */
.split-row{
  display:grid;
  grid-template-columns:minmax(0,4fr) minmax(0,6fr);
  gap:48px;
  align-items:center;
  padding:36px 0;
}
.split-row + .split-row{border-top:1px solid var(--glass-border);}
.split-row.reverse .split-media{order:2;}
.split-media{
  position:relative;
  border-radius:var(--radius-card);
  overflow:hidden;
  border:1px solid var(--glass-border);
  box-shadow:var(--shadow-card),var(--glass-inner);
  aspect-ratio:4/3;
}
.split-media img{width:100%;height:100%;}
.split-media .media-tag{
  position:absolute;
  left:14px;bottom:14px;
  display:inline-flex;
  align-items:center;
  height:28px;
  padding:0 12px;
  border-radius:999px;
  font-size:12px;
  color:var(--t1);
  background:rgba(7,10,18,0.68);
  border:1px solid var(--glass-border);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
}
.split-body .step-no{
  font-family:var(--font-num);
  font-size:13px;
  letter-spacing:.14em;
  color:var(--c-primary);
  margin-bottom:10px;
}
.split-body h3{
  font-size:20px;
  line-height:30px;
  font-weight:600;
  color:var(--t1);
}
.split-body .split-text{
  margin-top:12px;
  font-size:15px;
  line-height:26px;
  color:var(--t2);
  max-width:640px;
}
.point-list{margin-top:18px;display:grid;gap:12px;}
.point-list li{
  display:flex;
  gap:10px;
  font-size:15px;
  line-height:26px;
  color:var(--t2);
}
.point-list li::before{
  content:"";
  flex:0 0 6px;
  width:6px;height:6px;
  margin-top:10px;
  border-radius:999px;
  background:var(--c-primary);
  box-shadow:0 0 8px rgba(47,224,198,0.7);
}
.point-list strong{color:var(--t1);font-weight:600;}

/* 场景标签卡 */
.scene-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.scene-card{
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-card);
  padding:26px;
  box-shadow:var(--shadow-card),var(--glass-inner);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.scene-card:hover{
  transform:translateY(-4px);
  border-color:rgba(47,224,198,0.30);
  box-shadow:0 18px 40px rgba(0,0,0,0.55),var(--glass-inner);
}
.scene-card .s-icon{
  width:40px;height:40px;
  display:grid;place-items:center;
  border-radius:12px;
  border:1px solid rgba(47,224,198,0.35);
  background:rgba(47,224,198,0.08);
  margin-bottom:16px;
}
.scene-card .s-icon svg{width:20px;height:20px;stroke:var(--c-primary);}
.scene-card h3{font-size:18px;line-height:28px;font-weight:600;color:var(--t1);}
.scene-card p{margin-top:10px;font-size:14px;line-height:24px;color:var(--t2);}
.scene-card .btn-text{margin-top:16px;font-size:14px;}

/* 数据条 */
.metric-strip{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
  padding:32px;
  border-radius:var(--radius-panel);
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  box-shadow:var(--shadow-card),var(--glass-inner);
}
.metric-strip .m-num{
  font-family:var(--font-num);
  font-size:28px;
  line-height:36px;
  font-weight:700;
  color:var(--c-accent);
  letter-spacing:.01em;
}
.metric-strip .m-label{margin-top:4px;font-size:13px;line-height:20px;color:var(--t3);}
.metric-strip .m-item + .m-item{border-left:1px solid var(--glass-border);padding-left:24px;}

/* FAQ */
.faq-wrap{max-width:880px;}
.faq-item{border-bottom:1px solid var(--glass-border);position:relative;}
.faq-item:first-child{border-top:1px solid var(--glass-border);}
.faq-q{
  width:100%;
  min-height:64px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  text-align:left;
  padding:16px 8px 16px 0;
  font-size:16px;
  line-height:24px;
  color:var(--t1);
  transition:color .2s ease-out,padding-left .2s ease-out;
}
.faq-q:hover{color:var(--c-primary-hi);}
.faq-item.is-open .faq-q{padding-left:14px;}
.faq-item.is-open::before{
  content:"";
  position:absolute;
  left:0;top:14px;bottom:14px;
  width:2px;
  border-radius:999px;
  background:var(--c-primary);
}
.faq-icon{
  flex:0 0 18px;
  width:18px;height:18px;
  position:relative;
  transition:transform .2s ease-out;
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--c-primary);
  border-radius:2px;
}
.faq-icon::before{left:0;right:0;top:8px;height:2px;}
.faq-icon::after{top:0;bottom:0;left:8px;width:2px;transition:transform .2s ease-out,opacity .2s ease-out;}
.faq-item.is-open .faq-icon{transform:rotate(180deg);}
.faq-item.is-open .faq-icon::after{opacity:0;}
.faq-a{
  display:none;
  padding:0 8px 20px 14px;
  font-size:15px;
  line-height:26px;
  color:var(--t2);
  max-width:760px;
}
.faq-item.is-open .faq-a{display:block;}

/* CTA 条 */
.cta-bar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding:28px 32px;
  border-radius:var(--radius-card);
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  box-shadow:var(--shadow-card),var(--glass-inner);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
}
.cta-bar .cta-title{font-size:20px;line-height:30px;font-weight:600;color:var(--t1);}
.cta-bar .cta-text{margin-top:6px;font-size:14px;line-height:24px;color:var(--t2);}

/* 页脚 */
.site-footer{
  border-top:1px solid var(--glass-border);
  background:var(--bg-section);
  padding:64px 0 28px;
  position:relative;
  z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:32px;
}
.footer-brand{display:flex;gap:14px;align-items:flex-start;}
.footer-brand .brand-mark{flex:0 0 32px;width:32px;height:32px;}
.footer-brand h3{font-size:16px;line-height:26px;font-weight:700;color:var(--t1);}
.footer-brand p{margin-top:8px;font-size:13px;line-height:22px;color:var(--t3);max-width:300px;}
.footer-title{font-size:13px;color:var(--t1);font-weight:600;margin-bottom:14px;letter-spacing:.02em;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a,.footer-links span{font-size:13px;line-height:20px;color:var(--t3);}
.footer-links a:hover{color:var(--c-primary);}
.footer-bottom{
  margin-top:44px;
  padding-top:20px;
  border-top:1px solid var(--glass-border);
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
}
.footer-bottom p{font-size:13px;line-height:20px;color:var(--t3);}
.footer-bottom .sep{margin:0 8px;color:rgba(255,255,255,0.12);}

/* 响应式 */
@media (max-width:1279px){
  .split-row{gap:36px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;}
  .footer-grid .footer-col-contact{grid-column:span 3;}
}
@media (max-width:1023px){
  .sidebar{display:none;}
  .topbar{display:flex;}
  .main-content{margin-left:0;padding-top:56px;}
  .page-banner{padding:52px 0 34px;min-height:300px;}
  h1.page-title{font-size:32px;line-height:44px;}
  .section{padding:64px 0;}
  .scene-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .metric-strip{grid-template-columns:1fr;gap:18px;}
  .metric-strip .m-item + .m-item{border-left:0;padding-left:0;border-top:1px solid var(--glass-border);padding-top:18px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  h1.page-title{font-size:28px;line-height:40px;}
  h2.section-title{font-size:24px;line-height:34px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:32px;}
  .split-row{grid-template-columns:1fr;gap:22px;padding:28px 0;}
  .split-row.reverse .split-media{order:0;}
  .split-media{aspect-ratio:16/10;}
  .scene-grid{grid-template-columns:1fr;}
  .cta-bar{flex-direction:column;align-items:stretch;padding:22px;}
  .cta-bar .btn{width:100%;height:48px;}
  .faq-q{font-size:15px;line-height:24px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-grid .footer-col-contact{grid-column:auto;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:519px){
  .brand-text .b-sub{display:none;}
  .btn{width:100%;}
  .btn-text{width:auto;}
}

/* roulang page: article */
:root{
  --bg-base:#070A12;
  --bg-section:#0B1220;
  --glass-bg:rgba(18,27,45,.55);
  --glass-bg-strong:rgba(22,33,54,.78);
  --glass-border:rgba(255,255,255,.08);
  --glass-line:rgba(255,255,255,.06);
  --c-primary:#2FE0C6;
  --c-primary-hi:#56EBD4;
  --c-primary-deep:#17B49C;
  --c-accent:#FF8A3C;
  --c-violet:#7B6BFF;
  --ok:#3ED598;
  --warn:#FFC24B;
  --danger:#FF5F6D;
  --t1:#E9EFF8;
  --t2:#A6B4CB;
  --t3:#66748C;
  --radius-card:16px;
  --radius-panel:20px;
  --radius-btn:12px;
  --shadow-card:0 12px 32px rgba(0,0,0,.45);
  --shadow-soft:0 8px 24px rgba(0,0,0,.35);
  --sidebar-w:248px;
  --font-base:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:Inter,"JetBrains Mono",ui-monospace,SFMono-Regular,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-base);
  font-size:16px;
  line-height:28px;
  color:var(--t2);
  background:var(--bg-base);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4,p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid rgba(47,224,198,.9);outline-offset:2px;border-radius:6px}
::selection{background:rgba(47,224,198,.28);color:#fff}
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:rgba(255,255,255,.14);border-radius:999px}
::-webkit-scrollbar-thumb:hover{background:rgba(47,224,198,.4)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}

/* ---------- 侧边导航 ---------- */
.sidebar{
  position:fixed;top:0;left:0;width:var(--sidebar-w);height:100vh;
  display:none;flex-direction:column;
  background:var(--glass-bg-strong);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-right:1px solid var(--glass-border);
  z-index:60;
}
@media(min-width:1024px){.sidebar{display:flex}}
.brand{
  display:flex;align-items:center;gap:12px;
  padding:20px 18px;min-height:88px;
  border-bottom:1px solid var(--glass-line);
}
.brand-mark{
  flex:0 0 32px;width:32px;height:32px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(47,224,198,.45);
  background:rgba(47,224,198,.08);
  box-shadow:0 0 0 1px rgba(47,224,198,.12),0 8px 20px -10px rgba(47,224,198,.6);
}
.brand-mark svg{width:18px;height:18px;stroke:var(--c-primary);fill:none}
.brand-text{display:flex;flex-direction:column;min-width:0}
.brand-text strong{font-size:15px;font-weight:700;color:var(--t1);line-height:20px;letter-spacing:-.01em}
.brand-text em{font-style:normal;font-size:12px;line-height:18px;color:var(--t3)}
.sidebar-scroll{flex:1;overflow-y:auto;padding:18px 12px 8px}
.nav-group{margin-bottom:22px}
.nav-group-title{
  font-size:12px;line-height:18px;color:var(--t3);
  padding:0 16px 8px;letter-spacing:.06em;
}
.nav-item{
  position:relative;display:flex;align-items:center;gap:10px;
  height:44px;padding:0 16px;border-radius:10px;
  font-size:14px;color:var(--t2);
  transition:background-color .2s ease-out,color .2s ease-out;
}
.nav-item svg{width:18px;height:18px;stroke:currentColor;fill:none;flex:0 0 18px;opacity:.85}
.nav-item:hover{background:rgba(255,255,255,.04);color:var(--t1)}
.nav-item.is-active{
  background:rgba(47,224,198,.10);color:var(--t1);font-weight:600;
}
.nav-item.is-active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;border-radius:0 3px 3px 0;
  background:var(--c-primary);
}
.sidebar-foot{
  padding:16px 16px 20px;border-top:1px solid var(--glass-line);
}
.sidebar-note{font-size:13px;line-height:20px;color:var(--t3);margin-top:12px}

/* ---------- 移动端顶栏与抽屉 ---------- */
.topbar{
  position:fixed;top:0;left:0;right:0;height:56px;z-index:70;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 16px;
  background:rgba(7,10,18,.92);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--glass-border);
}
.topbar-brand{font-size:15px;font-weight:700;color:var(--t1);letter-spacing:-.01em}
.burger{width:44px;height:44px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;border-radius:10px}
.burger span{display:block;width:20px;height:2px;border-radius:2px;background:var(--c-primary);transition:transform .2s ease-out,opacity .2s ease-out}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.drawer-mask{
  position:fixed;inset:0;z-index:80;
  background:rgba(4,7,12,.70);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
}
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:90;
  width:84vw;max-width:320px;
  padding:20px 12px 24px;overflow-y:auto;
  background:var(--glass-bg-strong);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-left:1px solid var(--glass-border);
  transform:translateX(103%);
  transition:transform .26s ease-out;
}
.drawer.is-open{transform:translateX(0)}
.drawer .nav-item{height:48px}
.drawer .drawer-cta{margin:16px 4px 0}
.drawer-brand{display:flex;align-items:center;gap:10px;padding:4px 6px 18px;border-bottom:1px solid var(--glass-line);margin-bottom:18px}
.drawer-brand strong{font-size:15px;font-weight:700;color:var(--t1)}
.drawer-brand em{display:block;font-style:normal;font-size:12px;color:var(--t3)}
@media(min-width:1024px){
  .topbar,.drawer,.drawer-mask{display:none}
}

/* ---------- 主体 ---------- */
.main-wrap{padding-top:56px;min-height:100vh;display:flex;flex-direction:column}
@media(min-width:1024px){.main-wrap{margin-left:var(--sidebar-w);padding-top:0}}
.page-main{position:relative;flex:1;padding:36px 0 88px;overflow:hidden}
.page-main::before{
  content:"";position:absolute;top:0;left:0;right:0;height:420px;pointer-events:none;
  background:radial-gradient(120% 100% at 20% 0%,rgba(47,224,198,.20),rgba(47,224,198,0) 62%);
}
.page-main > .container{position:relative;z-index:1}

/* ---------- 面包屑 ---------- */
.breadcrumb{margin-bottom:18px}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumb li{font-size:13px;line-height:20px;color:var(--t3);display:flex;align-items:center;gap:8px}
.breadcrumb li + li::before{content:"/";color:var(--t3);opacity:.6}
.breadcrumb a{color:var(--t2);transition:color .2s ease-out}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb li[aria-current="page"]{color:var(--t3);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章布局 ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:40px}
@media(min-width:1280px){
  .article-layout{grid-template-columns:minmax(0,1fr) 220px;gap:56px}
}
.article-shell{min-width:0}
.article-title{
  font-size:32px;line-height:44px;font-weight:700;color:var(--t1);
  letter-spacing:-.01em;margin:6px 0 14px;max-width:22em;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;margin-bottom:30px}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  font-size:12px;line-height:1;letter-spacing:.02em;
  border:1px solid var(--glass-border);color:var(--t2);background:transparent;
}
.badge-primary{border-color:rgba(47,224,198,.4);background:rgba(47,224,198,.10);color:var(--c-primary)}
.meta-item{font-size:14px;line-height:24px;color:var(--t2)}
.meta-item time{font-family:var(--font-num);font-variant-numeric:tabular-nums}
.meta-sep{width:1px;height:14px;background:var(--glass-border);display:inline-block}

/* ---------- 正文 ---------- */
.article-body{max-width:820px;font-size:16px;line-height:30px;color:var(--t2);word-break:break-word}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 20px}
.article-body h2{
  position:relative;font-size:24px;line-height:34px;font-weight:700;color:var(--t1);
  margin:48px 0 16px;padding-left:16px;scroll-margin-top:32px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:5px;bottom:5px;width:4px;border-radius:2px;background:var(--c-primary);
}
.article-body h3{font-size:18px;line-height:28px;font-weight:600;color:var(--t1);margin:32px 0 12px}
.article-body h4{font-size:16px;line-height:26px;font-weight:600;color:var(--t1);margin:24px 0 10px}
.article-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--c-primary-hi)}
.article-body strong{color:var(--t1);font-weight:600}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px}
.article-body ul{list-style:none}
.article-body ul li{position:relative;padding-left:16px;margin:8px 0}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:12px;width:6px;height:6px;border-radius:999px;background:var(--c-primary);
}
.article-body ol{list-style:decimal}
.article-body ol li{margin:8px 0;padding-left:4px}
.article-body ol li::marker{color:var(--c-primary);font-family:var(--font-num)}
.article-body blockquote{
  margin:24px 0;padding:20px 22px;border-left:3px solid var(--c-primary);
  background:var(--glass-bg);border-radius:0 12px 12px 0;
  font-size:15px;line-height:28px;color:var(--t2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;margin:24px auto;height:auto}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;line-height:20px;color:var(--t3);text-align:center;margin-top:10px}
.article-body hr{border:0;border-top:1px solid var(--glass-border);margin:36px 0}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:14px}
.article-body th,.article-body td{border:1px solid var(--glass-border);padding:10px 14px;text-align:left;line-height:24px}
.article-body th{background:rgba(255,255,255,.03);color:var(--t1);font-weight:600}
.article-body code{
  font-family:var(--font-num);font-size:14px;padding:2px 6px;border-radius:6px;
  background:rgba(47,224,198,.10);color:var(--c-primary-hi);
}
.article-empty{
  padding:56px 24px;text-align:center;border:1px solid var(--glass-border);border-radius:var(--radius-panel);
  background:var(--glass-bg);
}
.article-empty svg{width:48px;height:48px;stroke:var(--c-primary);fill:none;opacity:.45;margin:0 auto 16px}
.article-empty p{font-size:14px;color:var(--t3);margin-bottom:18px}

/* ---------- 文末 ---------- */
.article-foot{margin-top:48px;padding-top:28px;border-top:1px solid var(--glass-border);max-width:820px}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  border:1px solid var(--glass-border);font-size:13px;color:var(--t2);
  transition:border-color .2s ease-out,color .2s ease-out;
}
.tag:hover{border-color:rgba(47,224,198,.45);color:var(--c-primary)}
.article-foot-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}

/* ---------- 目录 ---------- */
.toc-panel{display:none}
@media(min-width:1280px){
  .toc-panel{display:block;position:sticky;top:32px;align-self:start;max-height:calc(100vh - 64px);overflow-y:auto}
}
.toc-panel[hidden]{display:none !important}
.toc-title{font-size:12px;line-height:18px;color:var(--t3);letter-spacing:.08em;margin-bottom:12px}
.toc-list a{
  display:block;padding:7px 0 7px 12px;font-size:14px;line-height:20px;color:var(--t2);
  border-left:2px solid transparent;transition:color .2s ease-out,border-color .2s ease-out;
}
.toc-list a:hover{color:var(--t1)}
.toc-list a.is-active{color:var(--t1);border-left-color:var(--c-primary);font-weight:600}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.02em;white-space:nowrap;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background-color .2s ease-out,border-color .2s ease-out,color .2s ease-out;
}
.btn-primary{
  background:linear-gradient(180deg,var(--c-primary-hi),var(--c-primary));
  color:#04241F;
  box-shadow:0 0 0 1px rgba(47,224,198,.50),0 10px 30px -8px rgba(47,224,198,.55);
}
.btn-primary:hover{
  transform:translateY(-1px);
  box-shadow:0 0 0 1px rgba(47,224,198,.90),0 14px 40px -6px rgba(47,224,198,.70);
}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(47,224,198,.7),0 6px 16px -8px rgba(47,224,198,.6)}
.btn-ghost{
  border:1px solid var(--glass-border);
  background:rgba(255,255,255,.02);
  color:var(--t1);
}
.btn-ghost:hover{background:rgba(255,255,255,.06);border-color:rgba(47,224,198,.35)}
.btn-ghost:active{transform:translateY(1px)}
.btn-block{width:100%}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none}
@media(max-width:1023px){
  .btn{height:48px}
  .btn-ghost{height:44px}
}

/* ---------- 相关推荐 ---------- */
.related-section{margin-top:72px;padding-top:40px;border-top:1px solid var(--glass-border)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px}
.section-head h2{font-size:24px;line-height:34px;font-weight:700;color:var(--t1)}
.section-head p{font-size:14px;line-height:24px;color:var(--t3);margin-top:6px}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--c-primary);
  transition:color .2s ease-out;
}
.text-link:hover{color:var(--c-primary-hi);text-decoration:underline;text-underline-offset:3px}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
@media(max-width:1023px){.related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:640px){.related-grid{grid-template-columns:minmax(0,1fr)}}
.related-card{
  display:flex;flex-direction:column;gap:12px;padding:16px;
  border:1px solid var(--glass-border);border-radius:var(--radius-card);
  background:var(--glass-bg);
  box-shadow:var(--shadow-soft);
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.related-card:hover{transform:translateY(-4px);border-color:rgba(47,224,198,.30);box-shadow:var(--shadow-card)}
.related-thumb{
  display:block;position:relative;width:100%;aspect-ratio:16/9;border-radius:12px;overflow:hidden;
  background:#0E1626;
}
.related-thumb img{width:100%;height:100%;object-fit:cover}
.related-cat{font-size:12px;line-height:18px;color:var(--c-primary);letter-spacing:.02em}
.related-card strong{font-size:17px;line-height:26px;font-weight:600;color:var(--t1);display:block}
.related-time{font-size:13px;line-height:20px;color:var(--t3);font-family:var(--font-num);font-variant-numeric:tabular-nums}

/* ---------- CTA 条 ---------- */
.cta-bar{
  margin-top:64px;padding:32px;border-radius:var(--radius-card);
  border:1px solid var(--glass-border);background:var(--glass-bg);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.06);
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
}
.cta-bar h2{font-size:22px;line-height:32px;font-weight:700;color:var(--t1)}
.cta-bar p{font-size:14px;line-height:24px;color:var(--t2);margin-top:8px;max-width:56ch}
@media(max-width:767px){
  .cta-bar{flex-direction:column;align-items:stretch;padding:24px}
  .cta-bar .btn{width:100%}
}

/* ---------- 页脚 ---------- */
.site-footer{
  border-top:1px solid var(--glass-border);
  background:var(--bg-section);
  padding:64px 0 28px;
}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:32px}
@media(max-width:1023px){.footer-grid{grid-template-columns:1fr 1fr;gap:28px}}
@media(max-width:640px){.footer-grid{grid-template-columns:1fr}}
.footer-brand{display:flex;gap:14px}
.footer-brand .brand-mark{flex:0 0 32px}
.footer-brand h3{font-size:16px;line-height:24px;font-weight:700;color:var(--t1);margin-bottom:10px}
.footer-brand p{font-size:14px;line-height:24px;color:var(--t3);max-width:38ch}
.footer-title{font-size:13px;line-height:20px;color:var(--t1);font-weight:600;margin-bottom:14px;letter-spacing:.02em}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a,.footer-links span{font-size:14px;line-height:22px;color:var(--t3)}
.footer-links a{transition:color .2s ease-out}
.footer-links a:hover{color:var(--c-primary)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--glass-line);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
}
.footer-bottom p{font-size:13px;line-height:22px;color:var(--t3)}
.footer-bottom .sep{margin:0 10px;opacity:.5}
@media(max-width:640px){
  .page-main{padding:24px 0 64px}
  .container{padding:0 16px}
  .article-title{font-size:28px;line-height:40px}
  .article-body{font-size:16px;line-height:29px}
  .article-body h2{font-size:21px;line-height:31px;margin:38px 0 14px}
  .cta-bar{margin-top:48px}
  .related-section{margin-top:56px}
}

/* roulang page: category2 */
:root{
  --bg-base:#070A12;
  --bg-section:#0B1220;
  --glass-bg:rgba(18,27,45,.55);
  --glass-bg-strong:rgba(22,33,54,.78);
  --glass-border:rgba(255,255,255,.08);
  --glass-inner:inset 0 1px 0 rgba(255,255,255,.06);
  --c-primary:#2FE0C6;
  --c-primary-hi:#56EBD4;
  --c-primary-deep:#17B49C;
  --c-accent:#FF8A3C;
  --c-violet:#7B6BFF;
  --t1:#E9EFF8;
  --t2:#A6B4CB;
  --t3:#66748C;
  --ok:#3ED598;
  --warn:#FFC24B;
  --danger:#FF5F6D;
  --r-card:16px;
  --r-panel:20px;
  --r-btn:12px;
  --r-input:10px;
  --shadow-card:0 12px 32px rgba(0,0,0,.45);
  --sidebar-w:248px;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"Inter","JetBrains Mono",ui-monospace,"SFMono-Regular",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--t2);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:48px 48px;
  pointer-events:none;
  z-index:0;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
img{display:block;max-width:100%;object-fit:cover}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:2px solid rgba(47,224,198,.90);
  outline-offset:2px;
  border-radius:6px;
}
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:rgba(255,255,255,.14);border-radius:999px}

/* ============ 布局容器 ============ */
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}
.main{
  margin-left:var(--sidebar-w);
  position:relative;
  z-index:1;
}

/* ============ 左侧竖向导航 ============ */
.sidebar{
  position:fixed;
  top:0;
  left:0;
  width:var(--sidebar-w);
  height:100vh;
  display:flex;
  flex-direction:column;
  padding:0 16px 20px;
  background:var(--glass-bg-strong);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-right:1px solid var(--glass-border);
  z-index:50;
  overflow-y:auto;
}
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  height:88px;
  padding:0 8px;
  flex:none;
}
.brand-mark{
  width:36px;
  height:36px;
  flex:none;
  border-radius:10px;
  display:grid;
  place-items:center;
  color:var(--c-primary);
  border:1px solid rgba(47,224,198,.55);
  background:rgba(47,224,198,.08);
  box-shadow:0 0 22px -6px rgba(47,224,198,.65);
}
.brand-mark svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.brand-text{display:block;min-width:0}
.brand-text strong{
  display:block;
  font-size:15px;
  font-weight:700;
  color:var(--t1);
  letter-spacing:.02em;
  line-height:1.3;
}
.brand-text span{
  display:block;
  font-size:12px;
  color:var(--t3);
  line-height:1.5;
  margin-top:2px;
}
.nav-group{padding:8px 0}
.nav-group + .nav-group{border-top:1px solid var(--glass-border);margin-top:6px;padding-top:14px}
.nav-group-title{
  font-size:12px;
  color:var(--t3);
  padding:6px 12px 10px;
  letter-spacing:.08em;
}
.nav-item{
  position:relative;
  display:flex;
  align-items:center;
  gap:10px;
  height:44px;
  padding:0 16px;
  border-radius:10px;
  font-size:14px;
  color:var(--t2);
  transition:background .2s ease-out,color .2s ease-out;
}
.nav-item svg{width:18px;height:18px;flex:none;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.nav-item:hover{background:rgba(255,255,255,.04);color:var(--t1)}
.nav-item.is-active{background:rgba(47,224,198,.10);color:var(--t1)}
.nav-item.is-active::before{
  content:"";
  position:absolute;
  left:0;
  top:11px;
  bottom:11px;
  width:3px;
  border-radius:999px;
  background:var(--c-primary);
}
.sidebar-foot{
  margin-top:auto;
  padding:16px 4px 4px;
  display:grid;
  gap:12px;
  border-top:1px solid var(--glass-border);
}
.sidebar-foot .note{
  font-size:13px;
  line-height:1.7;
  color:var(--t3);
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background-color .2s ease-out,border-color .2s ease-out,color .2s ease-out;
  white-space:nowrap;
}
.btn-primary{
  background:var(--c-primary);
  color:#04140F;
  box-shadow:0 0 0 1px rgba(47,224,198,.50),0 10px 30px -8px rgba(47,224,198,.55);
}
.btn-primary:hover{
  background:var(--c-primary-hi);
  transform:translateY(-1px);
  box-shadow:0 0 0 1px rgba(47,224,198,.90),0 14px 40px -6px rgba(47,224,198,.70);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 0 1px rgba(47,224,198,.70),0 6px 18px -8px rgba(47,224,198,.55)}
.btn-ghost{
  background:transparent;
  border-color:var(--glass-border);
  color:var(--t1);
}
.btn-ghost:hover{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.18)}
.btn-block{width:100%}
.btn-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--c-primary);
}
.btn-link:hover{color:var(--c-primary-hi);text-decoration:underline;text-underline-offset:3px}
.btn-link svg{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

/* ============ 顶部条与移动抽屉 ============ */
.topbar{
  display:none;
  position:fixed;
  top:0;
  left:0;
  right:0;
  height:56px;
  align-items:center;
  justify-content:space-between;
  padding:0 16px;
  background:rgba(7,10,18,.92);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--glass-border);
  z-index:60;
}
.brand-mini{display:flex;align-items:center;gap:10px;font-size:14px;font-weight:700;color:var(--t1)}
.brand-mini .brand-mark{width:30px;height:30px;border-radius:9px}
.brand-mini .brand-mark svg{width:17px;height:17px}
.hamburger{
  width:44px;
  height:44px;
  display:grid;
  place-content:center;
  gap:5px;
  border-radius:10px;
}
.hamburger span{display:block;width:20px;height:2px;border-radius:2px;background:var(--c-primary)}
.hamburger:hover{background:rgba(255,255,255,.05)}
.overlay{
  position:fixed;
  inset:0;
  background:rgba(4,7,12,.70);
  -webkit-backdrop-filter:blur(4px);
  backdrop-filter:blur(4px);
  opacity:0;
  pointer-events:none;
  transition:opacity .28s ease-out;
  z-index:70;
}
.overlay.is-open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;
  top:0;
  right:0;
  bottom:0;
  width:84vw;
  max-width:320px;
  display:flex;
  flex-direction:column;
  padding:22px 16px;
  background:var(--glass-bg-strong);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-left:1px solid var(--glass-border);
  transform:translateX(100%);
  transition:transform .28s ease-out;
  z-index:80;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer .nav-item{height:48px}
.drawer-foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--glass-border);display:grid;gap:12px}
.drawer-foot .note{font-size:13px;line-height:1.7;color:var(--t3)}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--t3);
}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li + li::before{content:"/";color:rgba(255,255,255,.18)}
.breadcrumb a{color:var(--t2)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb [aria-current="page"]{color:var(--t3)}

/* ============ 首屏 ============ */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:72px 0 84px;
  border-bottom:1px solid var(--glass-border);
  background-image:linear-gradient(rgba(7,10,18,.78),rgba(7,10,18,.94)),url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
}
.page-hero::before{
  content:"";
  position:absolute;
  top:-180px;
  left:-140px;
  width:780px;
  height:560px;
  background:radial-gradient(closest-side,rgba(47,224,198,.20),rgba(47,224,198,0) 72%);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:1}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.45fr) minmax(280px,.95fr);
  gap:48px;
  align-items:center;
  margin-top:28px;
}
.hero-title{
  font-size:40px;
  line-height:1.3;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--t1);
  margin-top:18px;
}
.hero-title em{font-style:normal;color:var(--c-primary)}
.lede{
  max-width:760px;
  margin-top:18px;
  font-size:16px;
  line-height:1.85;
  color:var(--t2);
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12px;
  line-height:1;
  padding:8px 13px;
  border-radius:999px;
  border:1px solid var(--glass-border);
  color:var(--t2);
  background:rgba(255,255,255,.03);
}
.tag.is-on{
  color:var(--c-primary);
  border-color:rgba(47,224,198,.36);
  background:rgba(47,224,198,.10);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.stat-card{
  border-radius:var(--r-panel);
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  box-shadow:var(--shadow-card),var(--glass-inner);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  padding:26px;
}
.stat-card .stat-head{
  font-size:13px;
  color:var(--t3);
  padding-bottom:16px;
  border-bottom:1px solid var(--glass-border);
}
.stat-row{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:16px;
  padding-top:20px;
}
.stat-num{
  font-family:var(--font-num);
  font-size:28px;
  line-height:1.2;
  font-weight:700;
  color:var(--c-primary);
  font-variant-numeric:tabular-nums;
}
.stat-num.is-accent{color:var(--c-accent)}
.stat-label{font-size:12px;line-height:1.6;color:var(--t3);margin-top:6px}

/* ============ 板块 ============ */
.section{padding:96px 0;position:relative}
.section.is-alt{
  background:var(--bg-section);
  border-top:1px solid var(--glass-border);
  border-bottom:1px solid var(--glass-border);
}
.section-head{max-width:780px;margin-bottom:44px}
.eyebrow{
  font-size:13px;
  color:var(--c-primary);
  letter-spacing:.10em;
  margin-bottom:12px;
}
.section-head h2{
  font-size:30px;
  line-height:1.38;
  font-weight:700;
  color:var(--t1);
}
.section-head p{margin-top:14px;font-size:15px;line-height:1.85;color:var(--t2)}

/* ============ 卡片矩阵 ============ */
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.glass-card{
  display:flex;
  flex-direction:column;
  gap:14px;
  padding:26px;
  border-radius:var(--r-card);
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  box-shadow:var(--shadow-card),var(--glass-inner);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.glass-card:hover{
  transform:translateY(-4px);
  border-color:rgba(47,224,198,.30);
  box-shadow:0 18px 42px rgba(0,0,0,.52),var(--glass-inner);
}
.card-icon{
  width:44px;
  height:44px;
  border-radius:12px;
  display:grid;
  place-items:center;
  color:var(--c-primary);
  border:1px solid rgba(47,224,198,.30);
  background:rgba(47,224,198,.08);
}
.card-icon svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.glass-card h3{font-size:18px;line-height:1.5;font-weight:600;color:var(--t1)}
.glass-card p{font-size:14px;line-height:1.8;color:var(--t2)}
.card-link{margin-top:auto;padding-top:6px}

/* ============ 流程步骤 ============ */
.steps{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
  position:relative;
}
.step{
  position:relative;
  padding:24px;
  border-radius:var(--r-card);
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  box-shadow:var(--shadow-card),var(--glass-inner);
  transition:transform .2s ease-out,border-color .2s ease-out;
}
.step:hover{transform:translateY(-4px);border-color:rgba(47,224,198,.30)}
.step-num{
  width:40px;
  height:40px;
  border-radius:12px;
  display:grid;
  place-items:center;
  font-family:var(--font-num);
  font-size:15px;
  font-weight:700;
  color:var(--c-primary);
  border:1px solid rgba(47,224,198,.45);
  box-shadow:0 0 20px -8px rgba(47,224,198,.75);
  font-variant-numeric:tabular-nums;
}
.step h3{margin-top:16px;font-size:18px;line-height:1.5;font-weight:600;color:var(--t1)}
.step p{margin-top:10px;font-size:14px;line-height:1.8;color:var(--t2)}
.steps-note{
  margin-top:32px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:14px;
  font-size:14px;
  color:var(--t3);
}

/* ============ 图文两栏 ============ */
.split{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:48px;
  align-items:center;
}
.split.is-reverse .split-media{order:2}
.media{
  border-radius:var(--r-panel);
  overflow:hidden;
  border:1px solid var(--glass-border);
  background:#0D1524;
  box-shadow:var(--shadow-card);
  aspect-ratio:4/3;
}
.media img{width:100%;height:100%}
.check-list{margin-top:22px}
.check-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  padding:14px 0;
  font-size:15px;
  line-height:1.8;
  color:var(--t2);
  border-bottom:1px dashed var(--glass-border);
}
.check-list li:last-child{border-bottom:0}
.dot{
  width:7px;
  height:7px;
  flex:none;
  margin-top:11px;
  border-radius:999px;
  background:var(--c-primary);
  box-shadow:0 0 12px rgba(47,224,198,.7);
}
.check-list strong{color:var(--t1);font-weight:600}

/* ============ 结论说明三列 ============ */
.result-list{display:grid;gap:16px}
.result-item{
  display:flex;
  gap:16px;
  align-items:flex-start;
  padding:20px 22px;
  border-radius:var(--r-card);
  background:rgba(255,255,255,.03);
  border:1px solid var(--glass-border);
  transition:border-color .2s ease-out,background-color .2s ease-out;
}
.result-item:hover{border-color:rgba(47,224,198,.28);background:rgba(47,224,198,.05)}
.result-item .card-icon{width:40px;height:40px}
.result-item h3{font-size:16px;font-weight:600;color:var(--t1)}
.result-item p{margin-top:6px;font-size:14px;line-height:1.8;color:var(--t2)}

/* ============ FAQ ============ */
.faq{max-width:880px;padding-left:16px}
.faq-item{border-bottom:1px solid var(--glass-border);position:relative}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:64px;
  padding:12px 4px;
  font-size:16px;
  line-height:1.6;
  color:var(--t1);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"＋";
  flex:none;
  font-size:18px;
  line-height:1;
  color:var(--c-primary);
  transition:transform .2s ease-out;
}
.faq-item[open] summary::after{content:"－"}
.faq-item[open]::before{
  content:"";
  position:absolute;
  left:-16px;
  top:16px;
  bottom:16px;
  width:2px;
  border-radius:2px;
  background:var(--c-primary);
}
.faq-item summary:hover{color:var(--c-primary-hi)}
.faq-answer{
  padding:0 40px 20px 4px;
  font-size:15px;
  line-height:1.85;
  color:var(--t2);
}
.faq-answer a{color:var(--c-primary);text-underline-offset:3px}
.faq-answer a:hover{color:var(--c-primary-hi);text-decoration:underline}

/* ============ CTA 条 ============ */
.cta-wrap{padding:0 0 96px}
.cta-bar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  padding:30px 34px;
  border-radius:var(--r-card);
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  box-shadow:var(--shadow-card),var(--glass-inner);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
}
.cta-bar h2{font-size:22px;line-height:1.5;font-weight:700;color:var(--t1)}
.cta-bar p{margin-top:8px;font-size:14px;line-height:1.75;color:var(--t2)}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  z-index:1;
  padding:64px 0 28px;
  background:var(--bg-section);
  border-top:1px solid var(--glass-border);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:32px;
}
.footer-brand{display:flex;gap:14px}
.footer-brand .brand-mark{flex:none}
.footer-brand h3{font-size:16px;font-weight:700;color:var(--t1)}
.footer-brand p{margin-top:10px;font-size:14px;line-height:1.8;color:var(--t3);max-width:340px}
.footer-title{font-size:13px;letter-spacing:.06em;color:var(--t1);margin-bottom:14px}
.footer-links{display:grid;gap:10px}
.footer-links a,.footer-links span{font-size:14px;line-height:1.7;color:var(--t3)}
.footer-links a{transition:color .2s ease-out}
.footer-links a:hover{color:var(--c-primary)}
.footer-bottom{
  margin-top:40px;
  padding-top:20px;
  border-top:1px solid var(--glass-border);
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:10px;
  font-size:13px;
  color:var(--t3);
}
.sep{margin:0 8px;color:rgba(255,255,255,.16)}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:1023px){
  .sidebar{display:none}
  .topbar{display:flex}
  .main{margin-left:0;padding-top:56px}
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:36px}
  .hero-title{font-size:34px}
  .section{padding:72px 0}
  .cta-wrap{padding-bottom:72px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:900px){
  .split{grid-template-columns:minmax(0,1fr);gap:32px}
  .split.is-reverse .split-media{order:0}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .page-hero{padding:44px 0 56px}
  .hero-title{font-size:28px;line-height:1.4}
  .lede{font-size:15px;line-height:1.85}
  .section{padding:56px 0}
  .section-head{margin-bottom:28px}
  .section-head h2{font-size:24px;line-height:1.42}
  .stat-row{grid-template-columns:repeat(3,1fr);gap:12px}
  .stat-num{font-size:22px}
  .btn{height:48px}
  .btn-ghost{height:44px}
  .cta-bar{flex-direction:column;align-items:stretch;padding:24px}
  .cta-bar .btn{width:100%}
  .faq{max-width:100%;padding-left:14px}
  .faq-answer{padding-right:16px}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-bottom{flex-direction:column}
}
@media (max-width:639px){
  .card-grid{grid-template-columns:minmax(0,1fr)}
  .steps{grid-template-columns:minmax(0,1fr)}
  .stat-row{grid-template-columns:1fr 1fr}
  .hero-actions .btn{width:100%}
}

/* roulang page: category3 */
:root{
  --bg-base:#070A12;
  --bg-section:#0B1220;
  --glass-bg:rgba(18,27,45,.55);
  --glass-bg-strong:rgba(22,33,54,.78);
  --glass-border:rgba(255,255,255,.08);
  --glass-highlight:inset 0 1px 0 rgba(255,255,255,.06);
  --c-primary:#2FE0C6;
  --c-primary-hi:#56EBD4;
  --c-primary-deep:#17B49C;
  --c-accent:#FF8A3C;
  --c-violet:#7B6BFF;
  --c-success:#3ED598;
  --c-warn:#FFC24B;
  --c-danger:#FF5F6D;
  --t1:#E9EFF8;
  --t2:#A6B4CB;
  --t3:#66748C;
  --t-link:#2FE0C6;
  --r-card:16px;
  --r-panel:20px;
  --r-btn:12px;
  --r-input:10px;
  --shadow-card:0 12px 32px rgba(0,0,0,.45);
  --shadow-card-hover:0 18px 44px rgba(0,0,0,.55);
  --sidebar-w:248px;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:Inter,"JetBrains Mono",ui-monospace,tabular-nums,sans-serif;
}

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

html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}

body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--t2);
  background-color:var(--bg-base);
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:48px 48px;
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;display:block;height:auto;}
a{color:var(--t-link);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary-hi);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p,figure{margin:0;}
button{font-family:inherit;font-size:inherit;}
input,textarea,select{font-family:inherit;}

::selection{background:rgba(47,224,198,.28);color:#04150F;}

::-webkit-scrollbar{width:8px;height:8px;}
::-webkit-scrollbar-track{background:transparent;}
::-webkit-scrollbar-thumb{background:rgba(255,255,255,.14);border-radius:999px;}
::-webkit-scrollbar-thumb:hover{background:rgba(255,255,255,.22);}

:focus-visible{outline:2px solid rgba(47,224,198,.90);outline-offset:2px;border-radius:6px;}

/* ---------- 布局骨架 ---------- */
.main{margin-left:var(--sidebar-w);}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}

/* ---------- 左侧竖向导航 ---------- */
.side-nav{
  position:fixed;
  top:0;
  left:0;
  width:var(--sidebar-w);
  height:100vh;
  display:flex;
  flex-direction:column;
  background:var(--glass-bg-strong);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-right:1px solid var(--glass-border);
  z-index:60;
}

.brand{
  height:88px;
  flex:none;
  display:flex;
  align-items:center;
  gap:12px;
  padding:0 20px;
  border-bottom:1px solid var(--glass-border);
}

.brand-mark{
  flex:none;
  width:32px;
  height:32px;
  display:grid;
  place-items:center;
  border-radius:10px;
  background:rgba(47,224,198,.10);
  border:1px solid rgba(47,224,198,.34);
  color:var(--c-primary);
}
.brand-mark svg{width:19px;height:19px;stroke:currentColor;fill:none;}

.brand-text strong{
  display:block;
  font-size:15px;
  line-height:1.3;
  font-weight:600;
  color:var(--t1);
  letter-spacing:.02em;
}
.brand-text em{
  display:block;
  font-style:normal;
  font-size:12px;
  line-height:1.6;
  color:var(--t3);
}

.nav-scroll{flex:1;overflow-y:auto;padding:18px 12px;}
.nav-group + .nav-group{margin-top:22px;}

.nav-group-title{
  font-size:12px;
  line-height:1.6;
  color:var(--t3);
  letter-spacing:.08em;
  padding:0 16px;
  margin-bottom:8px;
}

.nav-item{
  position:relative;
  display:flex;
  align-items:center;
  gap:10px;
  height:44px;
  padding:0 12px 0 16px;
  border-radius:10px;
  font-size:14px;
  line-height:1.4;
  color:var(--t2);
  transition:background .2s ease,color .2s ease;
}
.nav-item svg{
  flex:none;
  width:18px;
  height:18px;
  stroke:currentColor;
  fill:none;
  stroke-width:1.8;
  stroke-linecap:round;
  stroke-linejoin:round;
  opacity:.85;
}
.nav-item:hover{background:rgba(255,255,255,.04);color:var(--t1);}
.nav-item.is-active{
  background:rgba(47,224,198,.10);
  color:var(--t1);
}
.nav-item.is-active::before{
  content:"";
  position:absolute;
  left:0;
  top:9px;
  bottom:9px;
  width:3px;
  border-radius:999px;
  background:var(--c-primary);
}
.nav-item.is-active svg{color:var(--c-primary);opacity:1;}

.nav-foot{
  flex:none;
  padding:16px 12px;
  border-top:1px solid var(--glass-border);
}
.nav-note{
  margin-top:10px;
  font-size:13px;
  line-height:1.6;
  color:var(--t3);
  text-align:center;
}

/* ---------- 移动端顶栏与抽屉 ---------- */
.top-bar{
  display:none;
  position:fixed;
  top:0;
  left:0;
  right:0;
  height:56px;
  align-items:center;
  justify-content:space-between;
  padding:0 16px;
  background:rgba(7,10,18,.92);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--glass-border);
  z-index:70;
}
.top-brand{display:flex;align-items:center;gap:10px;color:var(--t1);font-size:15px;font-weight:600;}
.top-brand .brand-mark{width:28px;height:28px;border-radius:9px;}
.top-brand .brand-mark svg{width:16px;height:16px;}

.menu-btn{
  width:44px;
  height:44px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  background:transparent;
  border:0;
  cursor:pointer;
  border-radius:10px;
}
.menu-btn span{display:block;width:22px;height:2px;border-radius:2px;background:var(--c-primary);}

.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(4,7,12,.70);
  -webkit-backdrop-filter:blur(4px);
  backdrop-filter:blur(4px);
  opacity:0;
  visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;
  z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}

.drawer{
  position:fixed;
  top:0;
  right:0;
  height:100%;
  width:84vw;
  max-width:320px;
  display:flex;
  flex-direction:column;
  gap:16px;
  padding:18px 16px 24px;
  background:var(--glass-bg-strong);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-left:1px solid var(--glass-border);
  transform:translateX(100%);
  transition:transform .25s ease;
  overflow-y:auto;
  z-index:90;
}
.drawer.is-open{transform:translateX(0);}

.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-bottom:14px;
  border-bottom:1px solid var(--glass-border);
}
.drawer-head strong{font-size:15px;color:var(--t1);font-weight:600;}
.drawer-close{
  width:44px;
  height:44px;
  display:grid;
  place-items:center;
  background:transparent;
  border:1px solid var(--glass-border);
  border-radius:10px;
  color:var(--t2);
  cursor:pointer;
  transition:border-color .2s ease,color .2s ease;
}
.drawer-close:hover{border-color:rgba(47,224,198,.36);color:var(--t1);}
.drawer-close svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;}

.drawer .nav-item{height:48px;font-size:15px;}
.drawer .nav-group-title{padding:0 4px;}
.drawer-foot{margin-top:auto;padding-top:16px;border-top:1px solid var(--glass-border);}
.drawer-note{margin-top:10px;font-size:13px;line-height:1.6;color:var(--t3);text-align:center;}

body.no-scroll{overflow:hidden;}

/* ---------- 通用组件 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 24px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1;
  white-space:nowrap;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
}
.btn-primary{
  background:var(--c-accent);
  color:#241000;
  box-shadow:0 0 0 1px rgba(255,138,60,.45),0 12px 32px -12px rgba(255,138,60,.80);
}
.btn-primary:hover{
  background:#FFA05C;
  color:#241000;
  transform:translateY(-1px);
  box-shadow:0 0 0 1px rgba(255,138,60,.85),0 16px 40px -12px rgba(255,138,60,.90);
}
.btn-primary:active{
  transform:translateY(1px);
  box-shadow:0 0 0 1px rgba(255,138,60,.60),0 6px 18px -10px rgba(255,138,60,.70);
}
.btn-ghost{
  background:rgba(255,255,255,.04);
  border-color:var(--glass-border);
  color:var(--t1);
}
.btn-ghost:hover{
  background:rgba(255,255,255,.08);
  border-color:rgba(47,224,198,.36);
  color:var(--t1);
  transform:translateY(-1px);
}
.btn-ghost:active{transform:translateY(1px);}
.btn-block{width:100%;}
.btn:disabled,.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}

.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:999px;
  border:1px solid var(--glass-border);
  background:rgba(255,255,255,.03);
  font-size:12px;
  line-height:1.6;
  color:var(--t2);
}
.badge-accent{
  border-color:rgba(47,224,198,.35);
  background:rgba(47,224,198,.10);
  color:var(--c-primary);
}

.eyebrow{
  display:inline-block;
  font-size:13px;
  line-height:1.6;
  letter-spacing:.06em;
  color:var(--c-primary);
  margin-bottom:12px;
}

.card{
  position:relative;
  background:var(--glass-bg-strong);
  border:1px solid var(--glass-border);
  border-radius:var(--r-card);
  padding:24px;
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card),var(--glass-highlight);
}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding:24px 0 0;
  font-size:13px;
  line-height:1.6;
  color:var(--t3);
}
.breadcrumb li{display:flex;align-items:center;gap:8px;}
.breadcrumb li + li::before{content:"/";color:var(--t3);opacity:.55;}
.breadcrumb a{color:var(--t2);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb [aria-current="page"]{color:var(--t3);}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  margin-top:20px;
  padding:72px 0 64px;
  background-image:linear-gradient(180deg,rgba(7,10,18,.78),rgba(7,10,18,.92)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  border-top:1px solid var(--glass-border);
  border-bottom:1px solid var(--glass-border);
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;
  left:-10%;
  top:-70%;
  width:72%;
  height:190%;
  background:radial-gradient(closest-side,rgba(47,224,198,.18),rgba(47,224,198,0) 72%);
  pointer-events:none;
}
.hero .container{position:relative;z-index:1;}

.hero h1{
  margin-top:16px;
  font-size:40px;
  line-height:1.3;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--t1);
  max-width:820px;
}
.hero-lead{
  margin-top:16px;
  max-width:760px;
  font-size:17px;
  line-height:1.75;
  color:var(--t2);
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:28px;
}

.trust-row{
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  margin-top:26px;
  font-size:13px;
  line-height:1.6;
  color:var(--t3);
}
.trust-row li{display:flex;align-items:center;gap:8px;}
.trust-row li::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--c-primary);
  flex:none;
}

.hero-stats{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(150px,1fr));
  gap:1px;
  margin-top:40px;
  max-width:720px;
  background:var(--glass-border);
  border:1px solid var(--glass-border);
  border-radius:var(--r-card);
  overflow:hidden;
}
.stat{
  background:rgba(11,18,32,.72);
  padding:18px 20px;
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
}
.stat-num{
  font-family:var(--font-num);
  font-size:28px;
  line-height:1.2;
  font-weight:700;
  color:var(--c-primary);
  font-variant-numeric:tabular-nums;
}
.stat-label{
  margin-top:4px;
  font-size:13px;
  line-height:1.6;
  color:var(--t3);
}

/* ---------- 板块 ---------- */
.section{padding:96px 0;}
.section-alt{
  background:var(--bg-section);
  border-top:1px solid var(--glass-border);
  border-bottom:1px solid var(--glass-border);
}
.section-head{max-width:760px;margin-bottom:36px;}
.section-head h2{margin-top:0;}
.section-head p{margin-top:14px;font-size:16px;line-height:1.8;color:var(--t2);}

h2{
  font-size:30px;
  line-height:1.4;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--t1);
}
h3{font-size:20px;line-height:1.5;font-weight:600;color:var(--t1);}

/* ---------- 主内容 + 侧栏 ---------- */
.layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 320px;
  gap:32px;
  align-items:start;
}
.aside-sticky{position:sticky;top:88px;}

/* ---------- 时间线 ---------- */
.timeline{
  position:relative;
  padding-left:28px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:7px;
  top:12px;
  bottom:12px;
  width:2px;
  border-radius:2px;
  background:linear-gradient(180deg,var(--c-primary),rgba(47,224,198,.12));
}
.tl-item{position:relative;padding-bottom:24px;}
.tl-item:last-child{padding-bottom:0;}
.tl-dot{
  position:absolute;
  left:-28px;
  top:8px;
  width:16px;
  height:16px;
  border-radius:50%;
  background:var(--bg-base);
  border:2px solid var(--c-primary);
  box-shadow:0 0 0 4px rgba(47,224,198,.12);
}
.tl-card{
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  border-radius:var(--r-card);
  padding:24px;
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card),var(--glass-highlight);
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.tl-card:hover{
  transform:translateY(-4px);
  border-color:rgba(47,224,198,.30);
  box-shadow:var(--shadow-card-hover),var(--glass-highlight);
}
.tl-step{
  font-family:var(--font-num);
  font-size:12px;
  line-height:1.6;
  letter-spacing:.08em;
  color:var(--t3);
  font-variant-numeric:tabular-nums;
}
.tl-card h3{margin-top:6px;}
.tl-card p{
  margin-top:10px;
  font-size:15px;
  line-height:1.8;
  color:var(--t2);
  max-width:660px;
}

.mini-list{
  display:flex;
  flex-wrap:wrap;
  gap:8px 22px;
  margin-top:14px;
}
.mini-list li{
  position:relative;
  padding-left:14px;
  font-size:14px;
  line-height:1.7;
  color:var(--t3);
}
.mini-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:10px;
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--c-primary);
  opacity:.85;
}

/* ---------- 侧栏卡片 ---------- */
.card-kicker{
  font-size:13px;
  line-height:1.6;
  letter-spacing:.06em;
  color:var(--c-primary);
}
.card h3{margin-top:8px;}
.check-list{margin-top:16px;display:grid;gap:12px;}
.check-list li{
  position:relative;
  padding-left:26px;
  font-size:14px;
  line-height:1.7;
  color:var(--t2);
}
.check-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:5px;
  width:13px;
  height:7px;
  border-left:2px solid var(--c-primary);
  border-bottom:2px solid var(--c-primary);
  transform:rotate(-45deg);
}
.card .btn{margin-top:22px;}
.card-note{
  margin-top:12px;
  font-size:13px;
  line-height:1.7;
  color:var(--t3);
}

/* ---------- 图文分区 ---------- */
.split{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  align-items:center;
}
.split-media{
  position:relative;
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--glass-border);
  box-shadow:var(--shadow-card);
}
.split-media img{
  width:100%;
  aspect-ratio:4 / 3;
  object-fit:cover;
}
.split-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(7,10,18,0) 45%,rgba(7,10,18,.55));
  pointer-events:none;
}
.split-body p{
  margin-top:14px;
  font-size:16px;
  line-height:1.8;
  color:var(--t2);
  max-width:560px;
}
.feature-list{margin-top:24px;display:grid;gap:14px;}
.feature-list li{
  position:relative;
  padding-left:26px;
  font-size:15px;
  line-height:1.75;
  color:var(--t2);
}
.feature-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:8px;
  width:8px;
  height:8px;
  border-radius:2px;
  background:var(--c-primary);
}
.feature-list strong{color:var(--t1);font-weight:600;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;}
.faq-list{border-top:1px solid var(--glass-border);}
.faq-item{
  position:relative;
  padding-left:16px;
  border-bottom:1px solid var(--glass-border);
}
.faq-item::before{
  content:"";
  position:absolute;
  left:0;
  top:14px;
  bottom:14px;
  width:2px;
  border-radius:2px;
  background:var(--c-primary);
  opacity:0;
  transition:opacity .2s ease;
}
.faq-item.is-open::before{opacity:1;}
.faq-q{
  width:100%;
  min-height:64px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:16px 0;
  background:none;
  border:0;
  text-align:left;
  font-size:16px;
  line-height:1.5;
  font-weight:500;
  color:var(--t1);
  cursor:pointer;
  transition:color .2s ease;
}
.faq-q:hover{color:var(--c-primary-hi);}
.faq-icon{
  flex:none;
  width:18px;
  height:18px;
  stroke:var(--c-primary);
  fill:none;
  stroke-width:1.8;
  stroke-linecap:round;
  transition:transform .2s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .25s ease;
}
.faq-a-inner{
  padding:0 0 20px;
  max-width:760px;
  font-size:15px;
  line-height:1.8;
  color:var(--t2);
}

/* ---------- 底部 CTA 条 ---------- */
.cta-bar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  padding:32px;
  border-radius:var(--r-card);
  border:1px solid rgba(47,224,198,.22);
  background:linear-gradient(120deg,rgba(47,224,198,.10),rgba(18,27,45,.78));
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card),var(--glass-highlight);
}
.cta-bar h2{font-size:24px;}
.cta-bar p{margin-top:8px;font-size:14px;line-height:1.7;color:var(--t2);}

/* ---------- 页脚 ---------- */
.site-footer{
  padding:64px 0 32px;
  background:var(--bg-section);
  border-top:1px solid var(--glass-border);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:32px;
}
.footer-brand{display:flex;gap:14px;}
.footer-brand h3{font-size:16px;font-weight:600;color:var(--t1);}
.footer-brand p{
  margin-top:10px;
  max-width:340px;
  font-size:14px;
  line-height:1.75;
  color:var(--t3);
}
.footer-title{
  font-size:14px;
  line-height:1.6;
  font-weight:600;
  color:var(--t1);
  margin-bottom:14px;
}
.footer-links{display:grid;gap:10px;}
.footer-links a,
.footer-links span{
  font-size:14px;
  line-height:1.7;
  color:var(--t3);
}
.footer-links a:hover{color:var(--c-primary);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:8px 24px;
  justify-content:space-between;
  margin-top:48px;
  padding-top:20px;
  border-top:1px solid var(--glass-border);
  font-size:13px;
  line-height:1.7;
  color:var(--t3);
}
.sep{margin:0 8px;opacity:.5;}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .layout{grid-template-columns:minmax(0,1fr) 300px;gap:28px;}
}

@media (max-width:1023px){
  .top-bar{display:flex;}
  .side-nav{display:none;}
  .main{margin-left:0;padding-top:56px;}
  .container{padding:0 24px;}
  .hero{padding:56px 0 48px;}
  .hero h1{font-size:32px;}
  .hero-lead{font-size:16px;}
  h2{font-size:26px;}
  .section{padding:64px 0;}
  .layout{grid-template-columns:1fr;gap:32px;}
  .aside-sticky{position:static;top:auto;}
  .split{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-bar{flex-direction:column;align-items:flex-start;}
  .cta-bar .btn{width:100%;}
}

@media (max-width:639px){
  .container{padding:0 16px;}
  .hero{padding:44px 0 40px;}
  .hero h1{font-size:28px;line-height:1.4;}
  .hero-lead{font-size:15px;}
  h2{font-size:24px;line-height:1.45;}
  h3{font-size:18px;}
  .section{padding:56px 0;}
  .btn{width:100%;height:48px;padding:0 20px;}
  .hero-actions .btn{width:100%;}
  .hero-stats{grid-template-columns:1fr 1fr;max-width:100%;}
  .stat{padding:16px;}
  .stat-num{font-size:24px;}
  .trust-row{gap:8px 16px;}
  .tl-card{padding:20px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:6px;}
  .cta-bar{padding:24px;}
  .cta-bar h2{font-size:20px;}
}