/* roulang page: index */
:root{
  --ink-900:#100C22;
  --ink-800:#171233;
  --ink-700:#221A44;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --brand:#6A47FF;
  --brand-600:#5836E8;
  --brand-300:#A896FF;
  --lime:#C9F24A;
  --coral:#FF6B4A;
  --paper:#F7F5FF;
  --paper-2:#ECE8FB;
  --txt:#EDEAFB;
  --txt-2:#A79FC9;
  --txt-dark:#241F3A;
  --txt-dark-2:#6B6490;
  --r-card:28px;
  --r-item:18px;
  --r-field:14px;
  --r-img:20px;
  --shadow-card:0 18px 40px -20px rgba(16,12,34,.85);
  --shadow-lift:0 24px 48px -20px rgba(106,71,255,.45);
  --ease:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--txt);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:0;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input,textarea,select{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;letter-spacing:-.02em;color:var(--txt);}
h1{font-size:clamp(32px,5vw,56px);line-height:1.15;font-weight:800;}
h2{font-size:clamp(24px,3.2vw,34px);line-height:1.25;font-weight:700;}
h3{font-size:20px;line-height:1.4;font-weight:600;}
p{margin:0;}
.num,time,.tnum{font-variant-numeric:tabular-nums;}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:16px;padding-right:16px;}
@media (min-width:768px){.container{padding-left:24px;padding-right:24px;}}
@media (min-width:1024px){.container{padding-left:40px;padding-right:40px;}}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background-color var(--ease),border-color var(--ease);
}
.site-header.is-scrolled{
  background:rgba(16,12,34,.95);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:76px;gap:24px;}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;color:var(--txt);}
.logo-mark{
  width:34px;height:34px;border-radius:12px;
  background:linear-gradient(135deg,var(--brand) 0%,#3A2AA8 100%);
  display:grid;place-items:center;flex:none;
}
.logo-mark svg{width:18px;height:18px;}
.nav-links{display:none;align-items:center;gap:26px;}
@media (min-width:1024px){.nav-links{display:flex;}}
.nav-link{
  position:relative;font-size:15px;color:var(--txt-2);
  padding:26px 0;transition:color var(--ease);white-space:nowrap;
}
.nav-link:hover{color:var(--txt);}
.nav-link.is-active{color:var(--txt);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:16px;height:3px;
  border-radius:3px;background:var(--lime);
}
.nav-pill{
  border:1px solid var(--brand-300);border-radius:999px;
  padding:7px 16px;font-size:14px;color:var(--txt);
  transition:background-color var(--ease),border-color var(--ease),transform var(--ease);
}
.nav-pill:hover{background:rgba(106,71,255,.16);border-color:var(--brand-300);transform:translateY(-2px);}
.nav-cta{display:none;}
@media (min-width:1024px){.nav-cta{display:inline-flex;}}
.burger{
  width:44px;height:44px;display:grid;place-items:center;border-radius:12px;
  border:1px solid var(--line);flex:none;
}
@media (min-width:1024px){.burger{display:none;}}
.burger span{display:block;width:18px;height:2px;background:var(--txt);border-radius:2px;}
.burger span+span{margin-top:4px;}
.drawer{
  position:fixed;inset:0;background:var(--ink-800);z-index:80;
  transform:translateX(100%);transition:transform 240ms ease-out;
  display:flex;flex-direction:column;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:76px;padding:0 16px;border-bottom:1px solid var(--line);}
.drawer-body{padding:12px 16px;flex:1;overflow-y:auto;}
.drawer-link{
  display:block;font-size:18px;line-height:1.6;padding:18px 4px;
  border-bottom:1px solid var(--line);color:var(--txt);
}
.drawer-link.is-active{color:var(--lime);}
.drawer-foot{padding:16px;border-top:1px solid var(--line);}
.close-x{width:44px;height:44px;display:grid;place-items:center;font-size:22px;color:var(--txt-2);}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:999px;font-size:15px;font-weight:600;
  transition:transform var(--ease),box-shadow var(--ease),background-color var(--ease),border-color var(--ease),color var(--ease);
  white-space:nowrap;
}
.btn:focus-visible{outline:2px solid var(--lime);outline-offset:2px;}
.btn-primary{background:var(--lime);color:#141031;box-shadow:var(--shadow-card);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-lift);background:#D6F86A;}
.btn-primary:active{transform:scale(.98);}
.btn-ghostline{border:1px solid var(--brand-300);color:#fff;background:transparent;}
.btn-ghostline:hover{transform:translateY(-2px);background:rgba(106,71,255,.18);}
.btn-ghostline:active{transform:scale(.98);}
.btn-quiet{color:var(--txt-2);padding:0 8px;}
.btn-quiet:hover{color:#fff;}
.btn-sm{height:36px;padding:0 18px;font-size:14px;}
.btn[aria-disabled="true"],.btn:disabled{filter:saturate(40%);pointer-events:none;}

/* Hero */
.hero{position:relative;overflow:hidden;padding:56px 0 40px;}
@media (min-width:1024px){.hero{padding:72px 0 56px;}}
.hero::before{
  content:"";position:absolute;inset:-20% -10% auto -10%;height:120%;
  background:linear-gradient(135deg,var(--ink-900) 0%,#1B1140 45%,var(--brand-600) 140%);
  opacity:.9;z-index:0;
}
.hero-arc{position:absolute;inset:0;z-index:1;opacity:.08;pointer-events:none;}
.hero-inner{position:relative;z-index:2;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--txt-2);
  border:1px solid var(--line);border-radius:999px;padding:6px 14px;
}
.dot{width:6px;height:6px;border-radius:50%;background:var(--lime);flex:none;}
.hero-sub{font-size:17px;color:var(--txt-2);max-width:32ch;line-height:1.75;}
.hero-media{
  border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow-card);aspect-ratio:16/9;background:var(--ink-800);
}
.hero-media img{width:100%;height:100%;object-fit:cover;}

/* 徽章条 */
.badge-strip{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;}
@media (min-width:768px){.badge-strip{grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}}
.stat-badge{
  border:1px solid var(--line);border-radius:999px;padding:12px 18px;
  display:flex;align-items:center;gap:12px;background:rgba(34,26,68,.6);
}
.stat-badge .val{font-size:22px;font-weight:800;line-height:1.1;}
.stat-badge .lbl{font-size:12px;color:var(--txt-2);line-height:1.4;}
.stat-badge .val.is-coral{color:var(--coral);}

/* 通用板块 */
.section{padding:56px 0;}
@media (min-width:768px){.section{padding:72px 0;}}
@media (min-width:1024px){.section{padding:96px 0;}}
.section-head{display:flex;flex-direction:column;gap:14px;margin-bottom:28px;}
@media (min-width:768px){
  .section-head{flex-direction:row;align-items:flex-end;justify-content:space-between;margin-bottom:36px;}
}
.section-desc{color:var(--txt-2);font-size:15px;max-width:60ch;}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--txt-2);transition:color var(--ease);}
.link-more:hover{color:var(--lime);}
.rule{height:1px;background:var(--line);border:0;margin:0;}

/* 步骤轴 */
.steps{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:768px){.steps{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.steps{grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;}}
.step{
  position:relative;padding:26px 24px;border-radius:var(--r-card);
  background:var(--ink-700);border:1px solid var(--line);box-shadow:var(--shadow-card);
  transition:border-color var(--ease),transform var(--ease);
}
.step:hover{border-color:rgba(201,242,74,.5);transform:translateY(-4px);}
.step-index{
  width:34px;height:34px;border-radius:50%;display:grid;place-items:center;
  font-size:14px;font-weight:800;background:rgba(201,242,74,.14);color:var(--lime);
  border:1px solid rgba(201,242,74,.35);margin-bottom:16px;
}
.step-line{display:none;}
@media (min-width:1024px){
  .step-line{display:block;position:absolute;top:43px;right:-24px;width:24px;height:1px;background:var(--line-strong);}
}
.step p{font-size:15px;color:var(--txt-2);margin-top:10px;line-height:1.8;}

/* 卡片 */
.card{
  background:var(--ink-700);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--shadow-card);
  transition:border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.card:hover{border-color:rgba(201,242,74,.55);transform:translateY(-4px);box-shadow:var(--shadow-lift);}
.tag{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;
  padding:4px 12px;border-radius:999px;border:1px solid rgba(201,242,74,.5);color:var(--lime);
}
.tag-muted{border-color:var(--line);color:var(--txt-2);font-weight:500;}
.reward-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:1024px){.reward-grid{grid-template-columns:6fr 4fr;gap:24px;}}
.reward-arrow{font-size:20px;color:var(--txt-2);transition:color var(--ease),transform var(--ease);}
.card:hover .reward-arrow{color:var(--lime);transform:translateX(4px);}
.icon-slot{
  width:46px;height:46px;border-radius:16px;background:rgba(106,71,255,.18);
  border:1px solid rgba(168,150,255,.35);display:grid;place-items:center;
}

/* 进度 */
.progress-track{height:12px;border-radius:999px;background:var(--ink-800);border:1px solid var(--line);overflow:hidden;}
.progress-fill{height:100%;width:0;border-radius:999px;background:linear-gradient(90deg,var(--brand) 0%,var(--lime) 100%);transition:width 400ms ease-out;}
.node-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;}
@media (min-width:768px){.node-row{grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}}
.node{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--txt-2);}
.node .bullet{width:14px;height:14px;border-radius:50%;flex:none;border:2px solid var(--line-strong);}
.node.is-done .bullet{background:var(--lime);border-color:var(--lime);}
.node.is-done{color:var(--txt);}

/* 资讯卡 */
.news-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:768px){.news-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.news-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}}
.news-card{
  background:var(--ink-700);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.news-card:hover{transform:translateY(-4px);border-color:rgba(201,242,74,.5);box-shadow:var(--shadow-lift);}
.news-cover{aspect-ratio:16/9;overflow:hidden;background:var(--ink-800);}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform 300ms ease-out;}
.news-card:hover .news-cover img{transform:scale(1.03);}
.news-body{padding:22px 24px 24px;}
.news-title{
  font-size:18px;font-weight:600;line-height:1.5;margin-top:14px;color:var(--txt);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-sum{
  font-size:15px;color:var(--txt-2);margin-top:10px;line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  display:flex;align-items:center;justify-content:space-between;
  margin-top:18px;padding-top:16px;border-top:1px solid var(--line);
  font-size:13px;color:var(--txt-2);
}
.empty-state{
  border:1px dashed var(--line-strong);border-radius:var(--r-card);
  padding:48px 24px;text-align:center;background:rgba(34,26,68,.35);
}
.empty-ring{
  width:56px;height:56px;border-radius:50%;border:2px solid rgba(201,242,74,.5);
  margin:0 auto 16px;
}

/* 评价 */
.voice-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:768px){.voice-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}}
.voice{padding:26px 24px;border-radius:var(--r-card);background:var(--ink-800);border:1px solid var(--line);}
.voice p{font-size:15px;color:var(--txt);line-height:1.85;margin-bottom:18px;}
.voice .who{font-size:13px;color:var(--txt-2);}
.quote-mark{font-size:28px;line-height:1;color:var(--lime);font-weight:800;}
.logo-wall{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;}
.logo-wall span{
  font-size:13px;color:var(--txt-2);border:1px solid var(--line);
  border-radius:999px;padding:8px 16px;background:var(--ink-800);
}

/* FAQ */
.faq-wrap{max-width:768px;margin:0 auto;}
.faq-item{border-top:1px solid var(--line);}
.faq-item:last-child{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 4px;text-align:left;font-size:17px;font-weight:600;color:var(--txt);
  transition:color var(--ease);min-height:44px;
}
.faq-q:hover{color:var(--lime);}
.faq-q:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:8px;}
.faq-icon{
  font-size:20px;color:var(--txt-2);flex:none;display:inline-block;
  transition:transform 240ms ease-out,color var(--ease);
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);color:var(--lime);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 280ms ease-out;}
.faq-a-inner{padding:0 4px 24px;font-size:15px;color:var(--txt-2);line-height:1.85;}

/* CTA 条 */
.cta-band{
  border-radius:var(--r-card);padding:36px 28px;border:1px solid var(--line);
  background:linear-gradient(120deg,#1B1140 0%,var(--brand-600) 100%);
  display:flex;flex-direction:column;gap:22px;box-shadow:var(--shadow-card);
}
@media (min-width:768px){
  .cta-band{flex-direction:row;align-items:center;justify-content:space-between;padding:44px 40px;gap:32px;}
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);}
.cta-band p{font-size:15px;color:rgba(237,234,251,.75);margin-top:10px;}

/* 页脚 */
.site-footer{background:var(--ink-800);border-top:1px solid var(--line);margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;padding:56px 0 40px;}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}}
.footer-title{font-size:14px;font-weight:600;color:var(--txt);margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:var(--txt-2);transition:color var(--ease);}
.footer-links a:hover{color:var(--lime);}
.footer-note{font-size:13px;color:var(--txt-2);line-height:1.8;}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0 28px;
  display:flex;flex-direction:column;gap:14px;font-size:13px;color:var(--txt-2);
}
@media (min-width:768px){.footer-bottom{flex-direction:row;align-items:center;justify-content:space-between;}}
.social-row{display:flex;gap:10px;}
.social-row a{
  width:36px;height:36px;border-radius:50%;border:1px solid var(--line);
  display:grid;place-items:center;transition:border-color var(--ease),transform var(--ease);
}
.social-row a:hover{border-color:var(--lime);transform:translateY(-2px);}
.social-row svg{width:16px;height:16px;stroke:var(--txt-2);fill:none;stroke-width:1.6;}
.footer-form{display:flex;gap:10px;margin-top:14px;}
.field{
  height:48px;width:100%;border-radius:var(--r-field);background:var(--ink-900);
  border:1px solid var(--line);padding:0 16px;font-size:14px;color:var(--txt);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.field::placeholder{color:#7A739B;}
.field:focus{outline:none;border-color:var(--lime);box-shadow:0 0 0 2px rgba(201,242,74,.25);}

/* roulang page: article */
:root{
  --ink-900:#100C22;
  --ink-800:#171233;
  --ink-700:#221A44;
  --line:rgba(255,255,255,.08);
  --brand:#6A47FF;
  --brand-600:#5836E8;
  --brand-300:#A896FF;
  --lime:#C9F24A;
  --coral:#FF6B4A;
  --paper:#F7F5FF;
  --paper-2:#ECE8FB;
  --t-main:#EDEAFB;
  --t-sub:#A79FC9;
  --t-dark:#241F3A;
  --t-dark-sub:#6B6490;
  --r-lg:28px;
  --r-md:18px;
  --r-sm:14px;
  --r-img:20px;
  --sh-card:0 18px 40px -20px rgba(16,12,34,.85);
  --sh-lift:0 24px 48px -20px rgba(106,71,255,.45);
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--t-main);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{list-style:none;padding:0;}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:6px;}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 16px;}
@media(min-width:768px){.container{padding:0 24px;}}
@media(min-width:1024px){.container{padding:0 40px;}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:-.01em;cursor:pointer;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out,border-color .18s ease-out,color .18s ease-out,opacity .18s ease-out;
  white-space:nowrap;
}
.btn:active{transform:scale(.98);}
.btn-primary{background:var(--lime);color:#141026;box-shadow:0 12px 26px -14px rgba(201,242,74,.65);}
.btn-primary:hover{transform:translateY(-2px);background:#D8FF63;box-shadow:0 18px 34px -14px rgba(201,242,74,.6);}
.btn-ghostline{background:transparent;border-color:var(--brand-300);color:#fff;}
.btn-ghostline:hover{transform:translateY(-2px);background:rgba(168,150,255,.12);box-shadow:var(--sh-lift);}
.btn-quiet{background:transparent;color:var(--t-sub);padding:0 12px;}
.btn-quiet:hover{color:#fff;}
.btn-sm{height:36px;padding:0 18px;font-size:14px;}
.btn-lg{height:50px;padding:0 30px;font-size:16px;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;height:76px;display:flex;align-items:center;
  background:transparent;border-bottom:1px solid transparent;
  transition:background-color .18s ease-out,border-color .18s ease-out;
}
.site-header.is-scrolled{background:rgba(16,12,34,.96);border-bottom-color:var(--line);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;width:100%;}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:800;letter-spacing:-.02em;color:#fff;flex-shrink:0;}
.logo-mark{
  position:relative;width:26px;height:26px;border-radius:9px;flex-shrink:0;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-300) 45%,var(--lime) 100%);
}
.logo-mark::after{
  content:"";position:absolute;inset:6px;border-radius:50%;
  border:2px solid rgba(16,12,34,.9);border-top-color:transparent;transform:rotate(28deg);
}
.nav-links{display:none;align-items:center;gap:4px;}
@media(min-width:1024px){.nav-links{display:flex;}}
.nav-link{
  position:relative;padding:10px 14px;border-radius:999px;font-size:15px;font-weight:500;
  color:var(--t-sub);transition:color .18s ease-out,background-color .18s ease-out;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.06);}
.nav-link.is-active{color:#fff;}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:1px;height:3px;border-radius:2px;background:var(--lime);
}
.nav-pill{
  padding:10px 18px;border-radius:999px;border:1px solid var(--brand-300);
  font-size:15px;font-weight:600;color:#fff;
  transition:background-color .18s ease-out,transform .18s ease-out,border-color .18s ease-out;
}
.nav-pill:hover{background:rgba(168,150,255,.14);transform:translateY(-2px);}
.nav-pill.is-active{border-color:var(--lime);color:var(--lime);}
.nav-right{display:flex;align-items:center;gap:10px;}
.nav-right .nav-cta{display:none;}
@media(min-width:1024px){.nav-right .nav-cta{display:inline-flex;}}
.burger{
  width:44px;height:44px;border-radius:14px;border:1px solid var(--line);background:var(--ink-800);
  display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;
  transition:border-color .18s ease-out;
}
.burger:hover{border-color:var(--brand-300);}
.burger span{display:block;width:18px;height:2px;border-radius:2px;background:#fff;transition:transform .18s ease-out,opacity .18s ease-out;}
@media(min-width:1024px){.burger{display:none;}}

/* 移动端抽屉 */
.drawer{
  position:fixed;inset:0;z-index:90;background:var(--ink-800);
  display:flex;flex-direction:column;padding:22px 0 0;
  transform:translateX(100%);opacity:0;visibility:hidden;
  transition:transform .22s ease-out,opacity .22s ease-out,visibility .22s ease-out;
}
.drawer.is-open{transform:translateX(0);opacity:1;visibility:visible;}
.drawer-top{display:flex;align-items:center;justify-content:space-between;padding:0 20px 18px;border-bottom:1px solid var(--line);}
.drawer-close{
  width:44px;height:44px;border-radius:14px;border:1px solid var(--line);background:transparent;
  cursor:pointer;font-size:18px;line-height:1;color:#fff;display:grid;place-items:center;
}
.drawer-nav{padding:14px 20px;display:flex;flex-direction:column;gap:2px;flex:1;overflow-y:auto;}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:56px;font-size:18px;font-weight:600;color:var(--t-main);
  border-bottom:1px solid var(--line);
}
.drawer-nav a.is-active{color:var(--lime);}
.drawer-foot{padding:18px 20px 26px;border-top:1px solid var(--line);}
.drawer-foot .btn{width:100%;}

.read-progress{
  position:fixed;top:0;left:0;height:2px;width:0;z-index:95;
  background:linear-gradient(90deg,var(--brand),var(--lime));
  transition:width .1s linear;
}

/* ---------- 文章页 ---------- */
.page-wrap{padding:34px 0 0;}
@media(min-width:768px){.page-wrap{padding:46px 0 0;}}

.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--t-sub);}
.crumbs a{color:var(--t-sub);transition:color .18s ease-out;}
.crumbs a:hover{color:var(--lime);}
.crumbs .sep{color:rgba(255,255,255,.22);}
.crumbs .now{color:var(--t-main);}

.article-head{max-width:820px;margin:26px auto 0;text-align:left;}
.tag-pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;border:1px solid var(--lime);
  font-size:13px;font-weight:600;color:var(--lime);letter-spacing:.01em;
}
.article-title{
  margin:18px 0 0;font-size:clamp(28px,4.4vw,40px);line-height:1.25;font-weight:800;
  letter-spacing:-.02em;color:#fff;
}
.article-meta{
  margin-top:18px;display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:13px;color:var(--t-sub);
}
.article-meta .dot{color:rgba(255,255,255,.22);}
.article-meta .num{font-variant-numeric:tabular-nums;}

.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr);gap:36px;
  max-width:820px;margin:30px auto 0;
}
@media(min-width:1280px){
  .article-layout{grid-template-columns:minmax(0,760px) 220px;max-width:1036px;gap:56px;align-items:start;}
}

.article-card{
  background:var(--ink-800);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-card);
  padding:26px 20px;}
@media(min-width:768px){.article-card{padding:40px 40px 44px;}}
@media(min-width:1280px){.article-card{padding:44px 44px 48px;}}

.article-body{font-size:16px;line-height:1.85;color:var(--t-main);overflow-wrap:break-word;word-break:break-word;}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.1em;}
.article-body strong{color:#fff;font-weight:700;}
.article-body em{color:var(--brand-300);font-style:normal;}
.article-body h2{
  position:relative;padding-left:16px;margin:44px 0 18px;
  font-size:clamp(21px,3vw,28px);line-height:1.35;font-weight:700;letter-spacing:-.02em;color:#fff;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.3em;width:4px;height:1em;border-radius:2px;background:var(--lime);
}
.article-body h3{
  margin:32px 0 14px;font-size:20px;line-height:1.45;font-weight:600;color:#fff;letter-spacing:-.01em;
}
.article-body h4{margin:24px 0 12px;font-size:17px;font-weight:600;color:#fff;}
.article-body ul,.article-body ol{margin:16px 0;padding-left:1.35em;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin:8px 0;}
.article-body li::marker{color:var(--lime);}
.article-body a{
  color:var(--brand-300);border-bottom:1px solid transparent;
  transition:border-color .18s ease-out,color .18s ease-out;
}
.article-body a:hover{border-bottom-color:var(--brand-300);color:#fff;}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;border-left:3px solid var(--lime);
  background:var(--ink-700);border-radius:0 var(--r-md) var(--r-md) 0;color:var(--t-main);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-img);margin:26px auto;height:auto;}
.article-body figure{margin:26px 0;}
.article-body figure img{margin:0 auto;}
.article-body figcaption{text-align:center;font-size:13px;color:var(--t-sub);margin-top:10px;}
.article-body hr{border:0;height:1px;background:var(--line);margin:36px 0;}
.article-body table{
  display:block;width:100%;overflow-x:auto;border-collapse:collapse;
  font-size:15px;margin:24px 0;-webkit-overflow-scrolling:touch;
}
.article-body th,.article-body td{
  padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap;
}
.article-body th{color:#fff;font-weight:600;background:var(--ink-700);}
.article-body code{
  background:var(--ink-700);padding:2px 7px;border-radius:8px;font-size:14px;
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;color:var(--lime);
}
.article-body pre{
  background:var(--ink-700);border:1px solid var(--line);border-radius:var(--r-md);
  padding:18px;overflow-x:auto;margin:24px 0;
}
.article-body pre code{background:none;padding:0;color:var(--t-main);}
.article-body iframe{max-width:100%;border-radius:var(--r-img);}

.toc-wrap{display:none;}
@media(min-width:1280px){.toc-wrap{display:block;position:sticky;top:104px;}}
.toc{
  background:var(--ink-800);border:1px solid var(--line);border-radius:var(--r-md);
  padding:18px 18px 20px;box-shadow:var(--sh-card);
}
.toc-title{
  font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--t-sub);
  text-transform:uppercase;padding-bottom:12px;border-bottom:1px solid var(--line);margin-bottom:12px;
}
.toc-list a{
  display:block;font-size:14px;line-height:1.55;color:var(--t-sub);padding:7px 0;
  border-left:2px solid transparent;padding-left:12px;transition:color .18s ease-out,border-color .18s ease-out;
}
.toc-list a:hover{color:#fff;}
.toc-list a.is-current{color:var(--lime);border-left-color:var(--lime);}
.toc-list a.lvl-3{padding-left:26px;font-size:13px;}

/* 文章尾区 */
.article-foot{margin-top:36px;}
.foot-tags{display:flex;flex-wrap:wrap;gap:10px;padding-top:26px;border-top:1px solid var(--line);}
.tag-link{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:999px;
  border:1px solid var(--line);font-size:13px;color:var(--t-sub);
  transition:color .18s ease-out,border-color .18s ease-out,transform .18s ease-out;
}
.tag-link:hover{color:var(--lime);border-color:var(--lime);transform:translateY(-2px);}

.related{margin-top:40px;}
.block-title{
  font-size:20px;font-weight:700;letter-spacing:-.02em;color:#fff;margin-bottom:18px;
  display:flex;align-items:center;gap:10px;
}
.block-title::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--lime);flex-shrink:0;}
.related-list{display:grid;grid-template-columns:1fr;gap:14px;}
@media(min-width:640px){.related-list{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media(min-width:1024px){.related-list{grid-template-columns:repeat(3,minmax(0,1fr));}}
.related-card{
  display:flex;flex-direction:column;gap:0;background:var(--ink-700);
  border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
  box-shadow:var(--sh-card);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lift);border-color:rgba(201,242,74,.5);}
.related-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;}
.related-card .rc-body{padding:16px 18px 18px;}
.related-card h3{font-size:16px;line-height:1.5;font-weight:600;color:#fff;}
.related-card p{font-size:13px;color:var(--t-sub);margin-top:8px;line-height:1.6;}
.related-card .rc-go{margin-top:12px;font-size:13px;font-weight:600;color:var(--lime);display:inline-flex;align-items:center;gap:6px;}

.foot-actions{margin-top:34px;display:flex;flex-wrap:wrap;gap:12px;}

.empty-state{
  text-align:center;padding:56px 20px;border:1px dashed var(--line);border-radius:var(--r-lg);
  background:var(--ink-800);
}
.empty-ring{
  width:64px;height:64px;margin:0 auto 18px;border-radius:50%;
  border:2px solid var(--brand-300);display:grid;place-items:center;
}
.empty-ring span{width:20px;height:20px;border-radius:50%;border:2px solid var(--lime);}
.empty-state h2{font-size:20px;font-weight:700;color:#fff;}
.empty-state p{margin-top:10px;font-size:15px;color:var(--t-sub);}
.empty-state .btn{margin-top:22px;}

/* ---------- 底部 CTA ---------- */
.cta-band{
  margin:80px 0 0;
  background:linear-gradient(120deg,var(--brand) 0%,var(--brand-600) 46%,#2E1B6E 100%);
  border-radius:var(--r-lg);
  padding:34px 26px;
  display:flex;flex-direction:column;gap:22px;align-items:flex-start;
  box-shadow:var(--sh-card);
  position:relative;overflow:hidden;
}
@media(min-width:768px){
  .cta-band{flex-direction:row;align-items:center;justify-content:space-between;padding:40px 44px;margin-top:96px;gap:36px;}
}
.cta-band::after{
  content:"";position:absolute;right:-70px;top:-70px;width:240px;height:240px;border-radius:50%;
  border:1px solid rgba(255,255,255,.16);pointer-events:none;
}
.cta-band h2{font-size:clamp(20px,3vw,26px);line-height:1.35;font-weight:700;color:#fff;letter-spacing:-.02em;}
.cta-band p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.82);max-width:520px;}
.cta-band .btn{position:relative;z-index:1;flex-shrink:0;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:80px;background:var(--ink-800);border-top:1px solid var(--line);
  padding:52px 0 26px;
}
@media(min-width:768px){.site-footer{margin-top:96px;padding:64px 0 28px;}}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px;}
@media(min-width:640px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:40px;}}
.footer-title{font-size:14px;font-weight:700;letter-spacing:.04em;color:#fff;margin-bottom:16px;}
.footer-note{font-size:14px;line-height:1.75;color:var(--t-sub);}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:14px;color:var(--t-sub);transition:color .18s ease-out,padding-left .18s ease-out;}
.footer-links a:hover{color:var(--lime);padding-left:4px;}
.social-row{display:flex;gap:10px;}
.social-row a{
  width:38px;height:38px;border-radius:12px;border:1px solid var(--line);
  display:grid;place-items:center;transition:border-color .18s ease-out,transform .18s ease-out,background-color .18s ease-out;
}
.social-row a:hover{border-color:var(--lime);transform:translateY(-2px);background:rgba(201,242,74,.08);}
.social-row svg{width:18px;height:18px;fill:none;stroke:var(--t-sub);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.social-row a:hover svg{stroke:var(--lime);}
.footer-form{display:flex;gap:10px;margin-top:14px;flex-wrap:wrap;}
.field{
  width:100%;height:48px;padding:0 16px;border-radius:var(--r-sm);
  background:var(--ink-900);border:1px solid var(--line);color:var(--t-main);font-size:15px;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.field::placeholder{color:rgba(167,159,201,.7);}
.field:focus{outline:none;border-color:var(--lime);box-shadow:0 0 0 2px rgba(201,242,74,.22);}
.footer-form .field{flex:1 1 160px;width:auto;}
.footer-bottom{
  margin-top:40px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--t-sub);
}
.section-gap{margin-top:56px;}
@media(min-width:768px){.section-gap{margin-top:72px;}}
@media(min-width:1024px){.section-gap{margin-top:96px;}}

/* roulang page: category1 */
:root{
  --ink-900:#100C22;
  --ink-800:#171233;
  --ink-700:#221A44;
  --line:rgba(255,255,255,.08);
  --brand:#6A47FF;
  --brand-600:#5836E8;
  --brand-300:#A896FF;
  --lime:#C9F24A;
  --coral:#FF6B4A;
  --paper:#F7F5FF;
  --paper-2:#ECE8FB;
  --text:#EDEAFB;
  --text-muted:#A79FC9;
  --text-dark:#241F3A;
  --text-dark-muted:#6B6490;
  --r-lg:28px;
  --r-md:18px;
  --r-sm:14px;
  --shadow-card:0 18px 40px -20px rgba(16,12,34,.85);
  --shadow-lift:0 24px 48px -20px rgba(106,71,255,.45);
  --ease:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  overflow-x:hidden;
  letter-spacing:0;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3{letter-spacing:-0.02em;}
ul{margin:0;padding:0;list-style:none;}
strong{font-weight:700;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 16px;}
@media (min-width:768px){.container{padding:0 24px;}}
@media (min-width:1024px){.container{padding:0 40px;}}
.section{padding:56px 0;}
@media (min-width:768px){.section{padding:72px 0;}}
@media (min-width:1024px){.section{padding:96px 0;}}
.section-light{background:var(--paper);color:var(--text-dark);}
.section-light h2,.section-light h3{color:var(--text-dark);}
.section-light .muted{color:var(--text-dark-muted);}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand-300);letter-spacing:.06em;text-transform:uppercase;}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--lime);}
.h2{font-size:clamp(24px,3vw,34px);line-height:1.25;font-weight:700;color:#fff;}
.section-light .h2{color:var(--text-dark);}
.lead{font-size:16px;line-height:1.85;color:var(--text-muted);max-width:760px;}
.muted{color:var(--text-muted);}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;}
@media (min-width:1024px){.section-head{margin-bottom:40px;}}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform var(--ease),box-shadow var(--ease),background-color var(--ease),border-color var(--ease),color var(--ease),opacity var(--ease);
}
.btn:hover{transform:translateY(-2px);}
.btn:active{transform:scale(.98);}
.btn:focus-visible{outline:2px solid var(--lime);outline-offset:2px;}
.btn-primary{background:var(--lime);color:#141031;box-shadow:0 12px 28px -18px rgba(201,242,74,.7);}
.btn-primary:hover{background:#d8ff5f;box-shadow:0 16px 32px -14px rgba(201,242,74,.55);}
.btn-outline{background:transparent;border-color:var(--brand-300);color:#fff;}
.btn-outline:hover{border-color:var(--lime);color:var(--lime);}
.btn-ghost{background:transparent;color:var(--text-muted);}
.btn-ghost:hover{color:#fff;background:rgba(255,255,255,.05);}
.section-light .btn-ghost{color:var(--text-dark-muted);}
.section-light .btn-ghost:hover{color:var(--text-dark);background:rgba(36,31,58,.06);}
.btn-sm{height:36px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-300);transition:color var(--ease),gap var(--ease);}
.link-arrow:hover{color:var(--lime);gap:10px;}
.link-arrow::after{content:"→";font-size:14px;}

/* ============ 头部导航 ============ */
.site-header{position:sticky;top:0;z-index:60;background:transparent;border-bottom:1px solid transparent;transition:background-color var(--ease),border-color var(--ease);}
.site-header.is-scrolled{background:rgba(16,12,34,.95);border-bottom-color:var(--line);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:76px;}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:#fff;}
.logo-mark{width:22px;height:22px;border-radius:50%;flex:0 0 auto;background:radial-gradient(circle at 32% 30%,var(--lime) 0 20%,var(--brand) 58%,#2a1f5c 100%);box-shadow:0 0 0 1px var(--line);}
.nav-links{display:none;align-items:center;gap:4px;}
@media (min-width:1024px){.nav-links{display:flex;}}
.nav-link{position:relative;padding:10px 14px;border-radius:999px;font-size:15px;color:var(--text-muted);transition:color var(--ease),background-color var(--ease);}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.05);}
.nav-link.is-active{color:#fff;}
.nav-link.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;border-radius:3px;background:var(--lime);}
.nav-pill{padding:9px 18px;border-radius:999px;border:1px solid var(--brand-300);color:#fff;font-size:15px;transition:border-color var(--ease),color var(--ease),background-color var(--ease);}
.nav-pill:hover{border-color:var(--lime);color:var(--lime);background:rgba(201,242,74,.06);}
.header-actions{display:flex;align-items:center;gap:10px;}
.header-cta{display:none;}
@media (min-width:640px){.header-cta{display:inline-flex;}}
.nav-toggle{width:44px;height:44px;display:grid;place-items:center;gap:5px;border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.04);cursor:pointer;}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:#fff;}
@media (min-width:1024px){.nav-toggle{display:none;}}

/* ============ 抽屉 ============ */
.drawer{position:fixed;inset:0;z-index:80;background:var(--ink-800);display:flex;flex-direction:column;padding:20px 20px 24px;opacity:0;transform:translateY(-10px);pointer-events:none;transition:opacity var(--ease),transform var(--ease);}
.drawer.is-open{opacity:1;transform:translateY(0);pointer-events:auto;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;}
.drawer-close{width:44px;height:44px;border-radius:14px;border:1px solid var(--line);background:rgba(255,255,255,.04);color:#fff;font-size:20px;cursor:pointer;}
.drawer-links{display:flex;flex-direction:column;gap:6px;flex:1;}
.drawer-links a{font-size:18px;padding:14px 12px;border-radius:var(--r-md);color:var(--text);border-bottom:1px solid var(--line);}
.drawer-links a.is-active{color:var(--lime);}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;padding:40px 0 56px;background:linear-gradient(135deg,var(--ink-900) 0%,#1b1440 55%,rgba(106,71,255,.35) 100%);}
.hero::before{content:"";position:absolute;inset:-10% -20% auto -20%;height:520px;background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 400'><g fill='none' stroke='%23C9F24A' stroke-width='1'><ellipse cx='600' cy='200' rx='560' ry='180'/><ellipse cx='600' cy='200' rx='420' ry='140'/></g><g fill='%23A896FF'><circle cx='180' cy='90' r='2'/><circle cx='980' cy='130' r='2'/><circle cx='740' cy='60' r='1.6'/><circle cx='320' cy='300' r='1.6'/></g></svg>");background-repeat:no-repeat;background-size:cover;opacity:.08;pointer-events:none;}
.hero-inner{position:relative;z-index:1;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-muted);margin-bottom:20px;}
.crumb a{color:var(--text-muted);}
.crumb a:hover{color:var(--lime);}
.crumb .sep{color:rgba(255,255,255,.25);}
.crumb .current{color:#fff;}
.hero h1{font-size:clamp(32px,5vw,56px);line-height:1.15;font-weight:800;color:#fff;letter-spacing:-0.02em;}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.7;color:var(--text-muted);max-width:560px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-badges{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:32px;}
@media (min-width:768px){.hero-badges{grid-template-columns:repeat(4,minmax(0,1fr));max-width:760px;}}
.pill-group{display:flex;flex-wrap:wrap;gap:10px;justify-content:flex-start;}
@media (min-width:1024px){.pill-group{justify-content:flex-end;}}
.pill{display:inline-flex;align-items:center;height:38px;padding:0 16px;border-radius:999px;border:1px solid var(--line);font-size:14px;color:var(--text-muted);background:rgba(255,255,255,.03);transition:color var(--ease),border-color var(--ease),background-color var(--ease);}
.pill:hover{color:#fff;border-color:var(--brand-300);}
.pill.is-active{color:var(--lime);border-color:rgba(201,242,74,.5);background:rgba(201,242,74,.1);}
.hero-media{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);aspect-ratio:16/9;box-shadow:var(--shadow-card);background:var(--ink-700);}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-media-tag{position:absolute;left:16px;bottom:16px;display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:999px;background:rgba(16,12,34,.9);border:1px solid var(--line);font-size:13px;color:#fff;}

/* ============ 徽章 / 数据 ============ */
.badge{display:inline-flex;align-items:center;gap:8px;padding:10px 16px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.03);}
.badge-num{font-size:22px;font-weight:800;color:#fff;font-variant-numeric:tabular-nums;}
.badge-label{font-size:12px;color:var(--text-muted);}
.badge-num.is-coral{color:var(--coral);}
.dot{width:6px;height:6px;border-radius:50%;background:var(--lime);flex:0 0 auto;}
.tag{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;border:1px solid rgba(201,242,74,.45);background:rgba(201,242,74,.08);color:var(--lime);font-size:12px;font-weight:600;}
.tag-neutral{border-color:var(--line);background:rgba(255,255,255,.04);color:var(--text-muted);}

/* ============ 卡片 ============ */
.card{background:var(--ink-700);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-card);}
.event-grid{display:grid;grid-template-columns:1fr;gap:24px;}
@media (min-width:768px){.event-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}}
.event-card{display:flex;flex-direction:column;overflow:hidden;transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);}
@media (min-width:640px){.event-card{flex-direction:row;}}
.event-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift);border-color:rgba(201,242,74,.5);}
.event-media{position:relative;overflow:hidden;aspect-ratio:4/3;background:var(--ink-800);}
@media (min-width:640px){.event-media{width:40%;flex:0 0 40%;aspect-ratio:auto;}}
.event-media img{width:100%;height:100%;object-fit:cover;transition:transform 320ms ease-out;}
.event-card:hover .event-media img{transform:scale(1.04);}
.event-media .mark{position:absolute;left:12px;top:12px;}
.event-body{display:flex;flex-direction:column;gap:12px;padding:22px 24px;flex:1;}
.event-body h3{font-size:20px;line-height:1.4;font-weight:600;color:#fff;}
.event-desc{font-size:15px;line-height:1.75;color:var(--text-muted);}
.event-stats{display:flex;flex-wrap:wrap;gap:10px;margin-top:auto;padding-top:6px;}
.stat{display:inline-flex;align-items:baseline;gap:6px;font-size:13px;color:var(--text-muted);border:1px solid var(--line);border-radius:999px;padding:6px 12px;}
.stat strong{color:#fff;font-variant-numeric:tabular-nums;font-size:14px;}
.stat strong.is-coral{color:var(--coral);}

/* ============ 步骤轴 ============ */
.steps{position:relative;display:grid;grid-template-columns:1fr;gap:28px;}
@media (min-width:768px){.steps{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}}
@media (min-width:1024px){.steps{grid-template-columns:repeat(4,minmax(0,1fr));gap:28px;}}
.steps::before{content:none;}
@media (min-width:1024px){.steps::before{content:"";position:absolute;top:22px;left:24px;right:24px;height:1px;background:var(--line);}}
.step{position:relative;display:flex;flex-direction:column;gap:12px;}
.step-dot{position:relative;z-index:1;width:44px;height:44px;border-radius:50%;display:grid;place-items:center;background:var(--ink-700);border:1px solid var(--line);color:var(--lime);font-weight:800;font-size:15px;font-variant-numeric:tabular-nums;}
.step h3{font-size:18px;font-weight:600;color:#fff;}
.step p{font-size:14px;line-height:1.8;color:var(--text-muted);}

/* ============ 浅色区 / 引用 ============ */
.split{display:grid;grid-template-columns:1fr;gap:32px;}
@media (min-width:1024px){.split{grid-template-columns:1.5fr 1fr;gap:48px;align-items:start;}}
.quote{border-left:3px solid var(--lime);background:var(--paper-2);border-radius:0 var(--r-md) var(--r-md) 0;padding:22px 24px;font-size:16px;line-height:1.85;color:var(--text-dark);}
.quote footer{margin-top:12px;font-size:13px;color:var(--text-dark-muted);}
.rating{display:flex;align-items:center;gap:14px;margin-top:20px;}
.rating-track{position:relative;flex:1;max-width:220px;height:8px;border-radius:999px;background:rgba(36,31,58,.12);overflow:hidden;}
.rating-fill{position:absolute;inset:0 auto 0 0;width:96%;border-radius:999px;background:linear-gradient(90deg,var(--brand) 0%,var(--lime) 100%);}
.rating-text{font-size:13px;color:var(--text-dark-muted);font-variant-numeric:tabular-nums;}
.mini-list{display:flex;flex-direction:column;gap:14px;}
.mini-item{background:#fff;border:1px solid rgba(36,31,58,.08);border-radius:var(--r-md);padding:18px 20px;display:flex;align-items:center;justify-content:space-between;gap:16px;}
.mini-item span{font-size:14px;color:var(--text-dark-muted);}
.mini-item strong{font-size:22px;font-weight:800;color:var(--text-dark);font-variant-numeric:tabular-nums;}

/* ============ FAQ ============ */
.faq-wrap{max-width:768px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px 0;background:none;border:0;text-align:left;font-size:17px;font-weight:600;color:#fff;cursor:pointer;min-height:44px;transition:color var(--ease);}
.faq-q:hover{color:var(--lime);}
.faq-icon{flex:0 0 auto;width:24px;height:24px;position:relative;transition:transform 220ms ease-out;}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;left:50%;top:50%;background:var(--lime);border-radius:2px;transform:translate(-50%,-50%);}
.faq-icon::before{width:14px;height:2px;}
.faq-icon::after{width:2px;height:14px;}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms ease-out;}
.faq-a p{padding:0 0 24px;font-size:15px;line-height:1.85;color:var(--text-muted);}

/* ============ CTA 条 ============ */
.cta-band{position:relative;overflow:hidden;border-radius:var(--r-lg);border:1px solid var(--line);padding:36px 28px;background:linear-gradient(120deg,var(--brand-600) 0%,var(--brand) 45%,#2b1f63 100%);box-shadow:var(--shadow-card);display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;}
@media (min-width:768px){.cta-band{padding:48px 44px;}}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;color:#fff;line-height:1.3;}
.cta-band p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.82);max-width:520px;}

/* ============ 表单 ============ */
.form-label{display:block;font-size:13px;color:var(--text-muted);margin-bottom:8px;}
.field{width:100%;height:48px;padding:0 16px;border-radius:var(--r-sm);border:1px solid var(--line);background:rgba(16,12,34,.7);color:#fff;transition:border-color var(--ease),box-shadow var(--ease);}
.field::placeholder{color:rgba(167,159,201,.7);}
.field:focus{outline:none;border-color:var(--lime);box-shadow:0 0 0 2px rgba(201,242,74,.18);}

/* ============ 页脚 ============ */
.site-footer{margin-top:0;background:var(--ink-800);border-top:1px solid var(--line);padding-top:56px;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:var(--text-muted);transition:color var(--ease);}
.footer-links a:hover{color:var(--lime);}
.footer-note{font-size:14px;line-height:1.75;color:var(--text-muted);}
.social-row{display:flex;gap:10px;}
.social-row a{width:38px;height:38px;border-radius:50%;border:1px solid var(--line);display:grid;place-items:center;color:var(--text-muted);transition:color var(--ease),border-color var(--ease);}
.social-row a:hover{color:var(--lime);border-color:rgba(201,242,74,.5);}
.social-row svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.footer-form{display:flex;gap:10px;margin-top:14px;flex-wrap:wrap;}
.footer-form .field{flex:1 1 160px;background:rgba(16,12,34,.75);}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;margin-top:48px;padding:20px 0 28px;border-top:1px solid var(--line);font-size:13px;color:var(--text-muted);}
.mt-4{margin-top:16px;}
.mt-5{margin-top:20px;}

/* roulang page: category2 */
:root{
  --ink-900:#100C22;
  --ink-800:#171233;
  --ink-700:#221A44;
  --line:rgba(255,255,255,.08);
  --brand:#6A47FF;
  --brand-600:#5836E8;
  --brand-300:#A896FF;
  --lime:#C9F24A;
  --coral:#FF6B4A;
  --paper:#F7F5FF;
  --paper-2:#ECE8FB;
  --text-1:#EDEAFB;
  --text-2:#A79FC9;
  --shadow-card:0 18px 40px -20px rgba(16,12,34,.85);
  --shadow-hover:0 24px 48px -20px rgba(106,71,255,.45);
  --r-card:28px;
  --r-tile:18px;
  --r-field:14px;
  --r-pill:999px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:90px;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text-1);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:0;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,blockquote,figure{margin:0}
ul,ol{padding:0}
::selection{background:var(--lime);color:#100C22}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px}
.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}

/* ---------- 容器 ---------- */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 16px}
@media (min-width:768px){.container{padding:0 24px}}
@media (min-width:1024px){.container{padding:0 40px}}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:70;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background-color 180ms ease-out,border-color 180ms ease-out;
}
.site-header.is-scrolled{
  background:rgba(16,12,34,.95);
  border-bottom-color:var(--line);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:76px}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:800;letter-spacing:-.01em;color:#fff;white-space:nowrap}
.logo-mark{
  width:22px;height:22px;border-radius:8px;flex:0 0 22px;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-300) 55%,var(--lime) 100%);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.16);
}
.nav-links{display:none}
@media (min-width:1024px){
  .nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;margin-right:6px}
}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:44px;padding:0 14px;
  border-radius:var(--r-pill);font-size:15px;color:var(--text-2);
  transition:color 180ms ease-out,background-color 180ms ease-out;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.05)}
.nav-link.is-active{color:#fff;font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:6px;height:3px;
  border-radius:3px;background:var(--lime);
}
.nav-pill{
  display:inline-flex;align-items:center;height:40px;padding:0 18px;
  border:1px solid var(--brand-300);border-radius:var(--r-pill);
  font-size:15px;color:#fff;
  transition:border-color 180ms ease-out,color 180ms ease-out,background-color 180ms ease-out;
}
.nav-pill:hover{border-color:var(--lime);color:var(--lime)}
.nav-pill.is-active{border-color:var(--lime);color:var(--lime);background:rgba(201,242,74,.09)}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-cta{display:none}
@media (min-width:1024px){.nav-cta{display:inline-flex}}
.hamburger{
  display:inline-flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;
  width:44px;height:44px;padding:0;background:transparent;
  border:1px solid var(--line);border-radius:var(--r-field);cursor:pointer;
  transition:border-color 180ms ease-out,background-color 180ms ease-out;
}
.hamburger:hover{border-color:var(--brand-300);background:rgba(255,255,255,.04)}
.hamburger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text-1)}
@media (min-width:1024px){.hamburger{display:none}}

/* ---------- 抽屉 ---------- */
.drawer{
  position:fixed;inset:0;z-index:90;
  background:var(--ink-800);
  display:flex;flex-direction:column;
  padding:20px 20px 24px;
  transform:translateY(-100%);
  visibility:hidden;pointer-events:none;
  transition:transform 220ms ease-out,visibility 220ms ease-out;
}
body.nav-open .drawer{transform:translateY(0);visibility:visible;pointer-events:auto}
.drawer-top{display:flex;align-items:center;justify-content:space-between;height:56px}
.drawer-close{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line);border-radius:var(--r-field);
  font-size:22px;line-height:1;cursor:pointer;color:var(--text-1);
  transition:border-color 180ms ease-out,color 180ms ease-out;
}
.drawer-close:hover{border-color:var(--lime);color:var(--lime)}
.drawer-nav{flex:1;display:flex;flex-direction:column;margin-top:16px;overflow-y:auto}
.drawer-link{
  display:flex;align-items:center;min-height:58px;
  font-size:18px;font-weight:600;color:var(--text-1);
  border-bottom:1px solid var(--line);
  transition:color 180ms ease-out;
}
.drawer-link:hover,.drawer-link.is-active{color:var(--lime)}
.drawer-cta{width:100%;margin-top:auto}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border:1px solid transparent;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform 180ms ease-out,background-color 180ms ease-out,border-color 180ms ease-out,box-shadow 180ms ease-out,color 180ms ease-out,opacity 180ms ease-out;
}
.btn-primary{background:var(--lime);color:#100C22}
.btn-primary:hover{background:#d8fb6b;transform:translateY(-2px);box-shadow:0 18px 34px -18px rgba(201,242,74,.55)}
.btn-outline{background:transparent;border-color:var(--brand-300);color:#fff}
.btn-outline:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--text-2)}
.btn-ghost:hover{color:#fff}
.btn:active{transform:scale(.98)}
.btn[disabled],.btn.is-disabled{opacity:.4;filter:saturate(.4);pointer-events:none}
.btn-sm{height:36px;padding:0 18px;font-size:14px}
.btn-lg{height:48px;padding:0 28px}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  padding:36px 0 64px;
  background:linear-gradient(158deg,var(--ink-900) 0%,#1B1340 52%,#2E1C79 100%);
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  opacity:.18;pointer-events:none;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(158deg,rgba(16,12,34,.94) 0%,rgba(16,12,34,.82) 45%,rgba(106,71,255,.45) 100%);
}
.hero-orbit{position:absolute;inset:0;width:100%;height:100%;opacity:.08;pointer-events:none}
.hero-inner{position:relative;z-index:2;text-align:center}
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-2);margin-bottom:26px;
}
.crumbs a{color:var(--text-2);transition:color 180ms ease-out}
.crumbs a:hover{color:var(--lime)}
.crumbs .sep{color:rgba(167,159,201,.5)}
.crumbs .current{color:var(--text-1)}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:.18em;
  color:var(--lime);margin-bottom:16px;
}
.hero-title{
  font-size:clamp(32px,5vw,56px);line-height:1.15;font-weight:800;letter-spacing:-.02em;
  max-width:900px;margin:0 auto 18px;
}
.hero-sub{
  font-size:17px;line-height:1.85;color:var(--text-2);
  max-width:680px;margin:0 auto 30px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
.badge-row{
  display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:44px;
}
.badge{
  display:inline-flex;align-items:center;gap:12px;
  padding:12px 22px;border:1px solid var(--line);border-radius:var(--r-pill);
  background:rgba(23,18,51,.85);
}
.badge .dot{width:6px;height:6px;border-radius:50%;background:var(--lime);flex:0 0 6px}
.badge-num{font-size:23px;font-weight:800;line-height:1;color:#fff;font-variant-numeric:tabular-nums}
.badge-label{font-size:13px;color:var(--text-2);line-height:1.4}

/* ---------- 区块 ---------- */
.section{padding:48px 0}
@media (min-width:1024px){.section{padding:64px 0}}
.section-head{max-width:720px;margin-bottom:34px}
.h2{
  font-size:clamp(24px,3.2vw,34px);line-height:1.25;font-weight:700;letter-spacing:-.02em;
  margin-bottom:14px;
}
.section-lead{font-size:16px;line-height:1.85;color:var(--text-2)}
.h2-inline{display:flex;align-items:center;gap:12px}
.h2-inline::before{content:"";width:4px;height:26px;border-radius:2px;background:var(--lime);flex:0 0 4px}

/* ---------- 四宫格卡片 ---------- */
.quad-grid{display:grid;gap:20px;grid-template-columns:1fr}
@media (min-width:768px){.quad-grid{grid-template-columns:repeat(2,1fr);gap:24px}}
.quad-card{
  display:flex;flex-direction:column;height:240px;overflow:hidden;
  background:var(--ink-700);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
  transition:transform 180ms ease-out,box-shadow 180ms ease-out,border-color 180ms ease-out;
}
.quad-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(201,242,74,.5)}
.quad-cover{height:112px;flex:0 0 112px;overflow:hidden;background:var(--ink-800)}
.quad-cover img{width:100%;height:100%;object-fit:cover}
.quad-body{padding:16px 22px 18px;display:flex;flex-direction:column;gap:4px}
.quad-title{font-size:19px;line-height:1.35;font-weight:600;letter-spacing:-.01em}
.quad-text{
  font-size:14px;line-height:1.65;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.quad-tag{
  align-self:flex-start;font-size:12px;color:var(--coral);letter-spacing:.04em;
}

/* ---------- 步骤轴 ---------- */
.step-axis{list-style:none;display:grid;gap:22px;grid-template-columns:1fr}
@media (min-width:768px){.step-axis{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.step-axis{grid-template-columns:repeat(4,1fr)}}
.step{
  position:relative;padding:26px 22px 24px;
  background:var(--ink-700);border:1px solid var(--line);border-radius:var(--r-tile);
  box-shadow:var(--shadow-card);
  transition:transform 180ms ease-out,border-color 180ms ease-out;
}
.step:hover{transform:translateY(-4px);border-color:rgba(201,242,74,.45)}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:50%;
  background:var(--brand);color:#fff;font-size:14px;font-weight:700;
  font-variant-numeric:tabular-nums;margin-bottom:16px;
}
.step h3{font-size:19px;font-weight:600;letter-spacing:-.01em;margin-bottom:8px}
.step p{font-size:14px;line-height:1.75;color:var(--text-2)}
.step::after{
  content:none;
}
@media (min-width:1024px){
  .step::after{
    content:"";position:absolute;top:43px;right:-22px;width:22px;height:1px;background:var(--line);
  }
  .step:last-child::after{content:none}
}

/* ---------- 清单 ---------- */
.check-list{list-style:none;display:grid;gap:14px;grid-template-columns:1fr}
@media (min-width:768px){.check-list{grid-template-columns:repeat(2,1fr);gap:16px 24px}}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:16px 18px;font-size:15px;line-height:1.7;
  background:var(--ink-700);border:1px solid var(--line);border-radius:var(--r-tile);
  transition:border-color 180ms ease-out,transform 180ms ease-out;
}
.check-list li:hover{border-color:rgba(201,242,74,.4);transform:translateY(-2px)}
.check-list svg{flex:0 0 18px;width:18px;height:18px;margin-top:5px;fill:none;stroke:var(--lime);stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}

/* ---------- 图文分栏 ---------- */
.split{display:grid;gap:28px;grid-template-columns:1fr}
@media (min-width:1024px){.split{grid-template-columns:1.05fr 1fr;gap:52px;align-items:center}}
.split-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-card);border:1px solid var(--line);
}
.quote{
  margin:22px 0;padding:18px 22px;
  background:var(--ink-700);border-left:3px solid var(--lime);
  border-radius:0 var(--r-tile) var(--r-tile) 0;
  font-size:15.5px;line-height:1.85;color:var(--text-1);
}
.quote cite{display:block;margin-top:10px;font-size:13px;font-style:normal;color:var(--text-2)}
.metric-list{list-style:none;display:grid;gap:16px;grid-template-columns:repeat(2,minmax(0,1fr))}
.metric-list li{display:flex;flex-direction:column;gap:2px}
.metric-num{font-size:23px;font-weight:800;line-height:1.2;color:var(--lime);font-variant-numeric:tabular-nums}
.metric-label{font-size:13px;color:var(--text-2)}

/* ---------- FAQ ---------- */
.faq{max-width:820px;margin:0 auto}
.faq-item{border-top:1px solid var(--line)}
.faq-item:last-child{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:64px;padding:18px 4px;background:none;border:0;
  font-size:17px;font-weight:600;text-align:left;color:var(--text-1);cursor:pointer;
  transition:color 180ms ease-out;
}
.faq-q:hover{color:var(--lime)}
.faq-icon{position:relative;flex:0 0 20px;width:20px;height:20px;transition:transform 180ms ease-out}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--lime);border-radius:2px}
.faq-icon::before{left:0;top:9px;width:20px;height:2px}
.faq-icon::after{left:9px;top:0;width:2px;height:20px}
.faq-q[aria-expanded="true"] .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 220ms ease-out}
.faq-a p{padding:0 4px 22px;font-size:15px;line-height:1.85;color:var(--text-2);max-width:760px}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--r-card);
  padding:38px 28px;
  background:linear-gradient(122deg,#2A1A6E 0%,var(--brand-600) 58%,var(--brand) 100%);
  display:flex;flex-wrap:wrap;gap:28px;align-items:center;justify-content:space-between;
  box-shadow:var(--shadow-card);
}
@media (min-width:1024px){.cta-band{padding:48px 44px}}
.cta-band::before{
  content:"";position:absolute;right:-60px;top:-80px;width:320px;height:320px;
  border-radius:50%;border:1px solid rgba(255,255,255,.14);pointer-events:none;
}
.cta-copy{position:relative;z-index:2;flex:1 1 300px;min-width:260px}
.cta-copy h2{font-size:clamp(22px,3vw,30px);line-height:1.3;font-weight:700;letter-spacing:-.02em;margin-bottom:10px}
.cta-copy p{font-size:15px;line-height:1.8;color:rgba(237,234,251,.85)}
.cta-form{position:relative;z-index:2;flex:1 1 300px;min-width:260px;display:grid;gap:12px}
.cta-form .field{
  background:rgba(16,12,34,.72);border:1px solid rgba(255,255,255,.18);color:#fff;
}
.cta-form .field::placeholder{color:rgba(237,234,251,.55)}
.cta-form .field:focus{border-color:var(--lime);box-shadow:0 0 0 2px rgba(201,242,74,.28)}
.cta-note{font-size:13px;line-height:1.6;color:rgba(237,234,251,.7)}

/* ---------- 表单 ---------- */
.field{
  width:100%;height:48px;padding:0 16px;
  background:var(--ink-800);border:1px solid var(--line);border-radius:var(--r-field);
  font-size:15px;color:var(--text-1);
  transition:border-color 180ms ease-out,box-shadow 180ms ease-out,background-color 180ms ease-out;
}
.field::placeholder{color:rgba(167,159,201,.7)}
.field:focus{outline:none;border-color:var(--lime);box-shadow:0 0 0 2px rgba(201,242,74,.22)}
.field.is-error{border-color:var(--coral);box-shadow:0 0 0 2px rgba(255,107,74,.2)}
.field-label{display:block;font-size:13px;color:var(--text-2);margin-bottom:8px}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:64px;
  padding:64px 0 28px;
  background:var(--ink-800);
  border-top:1px solid var(--line);
}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:32px}}
.footer-title{font-size:14px;font-weight:700;letter-spacing:.06em;color:#fff;margin-bottom:14px}
.footer-note{font-size:14px;line-height:1.8;color:var(--text-2)}
.footer-links{display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--text-2)}
.footer-links a{transition:color 180ms ease-out}
.footer-links a:hover{color:var(--lime)}
.social-row{display:flex;gap:10px}
.social-row a{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border:1px solid var(--line);border-radius:50%;
  color:var(--text-2);
  transition:border-color 180ms ease-out,color 180ms ease-out,transform 180ms ease-out;
}
.social-row a:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-2px)}
.social-row svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.footer-form{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px}
.footer-form .field{flex:1 1 160px;min-width:0;background:var(--ink-900)}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--text-2);
}
.mt-4{margin-top:16px}
.mt-5{margin-top:20px}

/* roulang page: category3 */
:root{
  --ink-900:#100C22;
  --ink-800:#171233;
  --ink-700:#221A44;
  --line:rgba(255,255,255,.08);
  --brand:#6A47FF;
  --brand-600:#5836E8;
  --brand-300:#A896FF;
  --lime:#C9F24A;
  --coral:#FF6B4A;
  --paper:#F7F5FF;
  --paper-2:#ECE8FB;
  --text:#EDEAFB;
  --text-2:#A79FC9;
  --text-dark:#241F3A;
  --text-dark-2:#6B6490;
  --r-card:28px;
  --r-item:18px;
  --r-field:14px;
  --r-img:20px;
  --shadow-card:0 18px 40px -20px rgba(16,12,34,.85);
  --shadow-hover:0 24px 48px -20px rgba(106,71,255,.45);
  --ease:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;letter-spacing:-.02em;font-weight:700;color:inherit}
h1{font-size:clamp(32px,5vw,56px);line-height:1.15;font-weight:800}
h2{font-size:clamp(24px,3vw,34px);line-height:1.25}
h3{font-size:20px;line-height:1.4;font-weight:600}
p{margin:0}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
dl,dt,dd{margin:0}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}
.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 40px}
.section{padding:96px 0}
.section-sm{padding:72px 0}
.muted{color:var(--text-2)}
.lead{font-size:16px;line-height:1.85;color:var(--text-2)}
.section-head{max-width:760px;margin-bottom:36px}
.section-head h2{margin-bottom:14px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--brand-300);
  text-transform:uppercase;margin-bottom:16px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--lime)}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(16,12,34,0);
  border-bottom:1px solid transparent;
  transition:background-color var(--ease),border-color var(--ease);
}
.site-header.is-scrolled{background:rgba(16,12,34,.95);border-bottom-color:var(--line)}
.nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:800;letter-spacing:-.02em;white-space:nowrap}
.logo-mark{
  width:22px;height:22px;border-radius:50%;flex:none;
  background:conic-gradient(from 200deg,var(--brand) 0deg,var(--brand-300) 140deg,var(--lime) 250deg,var(--coral) 360deg);
  box-shadow:0 0 0 1px var(--line);
}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:40px;
  padding:0 14px;border-radius:999px;font-size:15px;color:var(--text-2);
  transition:color var(--ease),background-color var(--ease);
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.04)}
.nav-link.is-active{color:#fff}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;
  border-radius:999px;background:var(--lime);
}
.nav-pill{
  display:inline-flex;align-items:center;height:40px;padding:0 18px;border-radius:999px;
  border:1px solid var(--brand-300);color:#fff;font-size:15px;font-weight:600;
  transition:background-color var(--ease),border-color var(--ease),transform var(--ease);
}
.nav-pill:hover{background:rgba(106,71,255,.18);border-color:var(--lime);transform:translateY(-2px)}
.nav-pill.is-active{background:rgba(106,71,255,.22);border-color:var(--lime)}
.nav-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-field);
  border:1px solid var(--line);background:var(--ink-800);
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform var(--ease),opacity var(--ease)}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.drawer{
  position:fixed;left:0;right:0;top:76px;bottom:0;z-index:55;
  background:var(--ink-800);padding:24px;display:flex;flex-direction:column;
  opacity:0;transform:translateY(-8px);pointer-events:none;overflow-y:auto;
  transition:opacity var(--ease),transform var(--ease);
}
.drawer.is-open{opacity:1;transform:none;pointer-events:auto}
.drawer-link{display:block;font-size:18px;line-height:1.4;font-weight:500;padding:18px 0;border-bottom:1px solid var(--line);color:var(--text)}
.drawer-link.is-active{color:var(--lime)}
.drawer .btn{width:100%;margin-top:28px}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;border-radius:999px;font-size:15px;font-weight:600;
  transition:transform var(--ease),box-shadow var(--ease),background-color var(--ease),border-color var(--ease),color var(--ease),filter var(--ease);
  white-space:nowrap;
}
.btn-sm{height:36px;padding:0 18px;font-size:14px}
.btn-primary{background:var(--lime);color:var(--ink-900)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 34px -16px rgba(201,242,74,.5);filter:brightness(1.06)}
.btn-outline{background:transparent;border:1px solid var(--brand-300);color:#fff}
.btn-outline:hover{background:rgba(106,71,255,.16);border-color:var(--lime);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--text-2);padding:0 12px}
.btn-ghost:hover{color:#fff}
.btn:active{transform:scale(.98)}
.btn:focus-visible{outline:2px solid var(--lime);outline-offset:2px}
.btn[disabled]{opacity:.4;cursor:not-allowed}

/* Hero */
.page-hero{
  position:relative;overflow:hidden;
  padding:88px 0 80px;
  background:linear-gradient(150deg,var(--ink-900) 38%,#2B1B66 100%);
}
.hero-arc{position:absolute;inset:0;width:100%;height:100%;opacity:.09;pointer-events:none}
.hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:56px;align-items:center;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  font-size:13px;font-weight:600;color:var(--brand-300);
  border:1px solid var(--line);background:var(--ink-800);
}
.tag-lime{color:var(--lime);border-color:rgba(201,242,74,.4)}
.page-hero h1{margin-bottom:20px}
.page-hero h1 .hl{
  background:linear-gradient(100deg,var(--lime),var(--brand-300));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{max-width:520px;font-size:17px;line-height:1.8;color:var(--text-2);margin-bottom:32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px}
.hero-meta{display:flex;flex-wrap:wrap;gap:22px;font-size:13px;color:var(--text-2)}
.hero-meta span{display:inline-flex;align-items:center;gap:8px}
.hero-meta i{width:6px;height:6px;border-radius:50%;background:var(--lime);display:inline-block}
.hero-media{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-card);
  aspect-ratio:16/9;background:var(--ink-800);
}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(160deg,rgba(16,12,34,.15),rgba(16,12,34,.55));
}
.hero-caption{
  position:absolute;left:20px;bottom:18px;z-index:2;
  font-size:13px;color:var(--text);background:rgba(16,12,34,.72);
  border:1px solid var(--line);border-radius:999px;padding:6px 14px;
}

/* 数据徽章条 */
.badge-strip{padding:0 0 8px;margin-top:-34px;position:relative;z-index:5}
.badge-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.stat{
  display:flex;align-items:center;gap:14px;padding:16px 20px;
  border:1px solid var(--line);border-radius:999px;background:var(--ink-700);
  box-shadow:var(--shadow-card);
}
.stat-dot{width:6px;height:6px;border-radius:50%;background:var(--lime);flex:none}
.stat-num{font-size:23px;font-weight:800;line-height:1.2;letter-spacing:-.02em}
.stat-label{font-size:13px;color:var(--text-2);line-height:1.4}

/* 三列方案对比 */
.plans{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.plan-card{
  display:flex;flex-direction:column;
  background:var(--ink-700);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);padding:28px;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.plan-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(201,242,74,.5)}
.plan-card.is-featured{background:linear-gradient(180deg,#2A2055 0%,var(--ink-700) 46%)}
.plan-tag{
  display:inline-flex;align-items:center;gap:8px;align-self:flex-start;
  height:32px;padding:0 14px;border-radius:999px;font-size:13px;font-weight:700;
  color:var(--ink-900);background:var(--lime);margin-bottom:18px;
}
.plan-tag.alt{background:var(--paper-2);color:var(--text-dark)}
.plan-tag.alt2{background:var(--brand);color:#fff}
.plan-lead{font-size:14px;line-height:1.75;color:var(--text-2);margin-bottom:22px;min-height:52px}
.plan-rows{border-top:1px solid var(--line);margin-bottom:24px}
.plan-row{display:grid;grid-template-columns:88px minmax(0,1fr);gap:12px;padding:13px 0;border-bottom:1px solid var(--line)}
.plan-row dt{font-size:13px;color:var(--text-2)}
.plan-row dd{font-size:14px;line-height:1.6;color:var(--text)}
.plan-foot{margin-top:auto}

/* 流程步骤轴 */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;position:relative}
.steps::before{
  content:"";position:absolute;top:21px;left:6%;right:6%;height:1px;
  background:linear-gradient(90deg,rgba(201,242,74,.55),rgba(168,150,255,.35),rgba(255,255,255,.08));
}
.step{position:relative;padding-top:56px}
.step-dot{
  position:absolute;top:0;left:0;width:44px;height:44px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:800;
  background:var(--ink-800);border:1px solid var(--line);color:var(--brand-300);
  font-variant-numeric:tabular-nums;
}
.step.is-done .step-dot{background:var(--lime);border-color:var(--lime);color:var(--ink-900)}
.step h3{margin-bottom:10px;font-size:19px}
.step p{font-size:14.5px;color:var(--text-2);line-height:1.8}

/* 进度条 */
.progress-card{
  background:var(--ink-800);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--shadow-card);margin-top:40px;
}
.progress-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:16px}
.progress-head .p-title{font-size:15px;font-weight:600}
.progress-head .p-val{font-size:22px;font-weight:800;color:var(--lime)}
.progress-track{height:12px;border-radius:999px;background:rgba(255,255,255,.06);overflow:hidden}
.progress-fill{
  height:100%;border-radius:999px;width:0;
  background:linear-gradient(90deg,var(--brand),var(--lime));
  transition:width 400ms ease-out;
}
.progress-nodes{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-top:20px}
.node{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-2)}
.node i{width:12px;height:12px;border-radius:50%;border:1px solid var(--line);flex:none}
.node.is-done i{background:var(--lime);border-color:var(--lime)}
.node.is-done{color:var(--text)}

/* 浅色区块 */
.section-paper{background:var(--paper);color:var(--text-dark)}
.section-paper .muted{color:var(--text-dark-2)}
.section-paper .eyebrow{color:var(--brand-600)}
.section-paper .eyebrow::before{background:var(--brand-600)}
.deliver-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.85fr);gap:48px;align-items:center}
.deliver-list{display:grid;gap:18px;margin-top:32px}
.deliver-item{
  display:grid;grid-template-columns:46px minmax(0,1fr);gap:16px;
  background:#fff;border:1px solid rgba(36,31,58,.08);border-radius:var(--r-item);
  padding:20px 22px;box-shadow:0 12px 30px -22px rgba(36,31,58,.5);
  transition:transform var(--ease),box-shadow var(--ease);
}
.deliver-item:hover{transform:translateY(-3px);box-shadow:0 20px 38px -24px rgba(106,71,255,.55)}
.deliver-ico{
  width:46px;height:46px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:var(--paper-2);color:var(--brand-600);
}
.deliver-ico svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.deliver-item h3{font-size:17px;color:var(--text-dark);margin-bottom:6px}
.deliver-item p{font-size:14px;line-height:1.75;color:var(--text-dark-2)}
.deliver-media{border-radius:var(--r-card);overflow:hidden;border:1px solid rgba(36,31,58,.08);aspect-ratio:4/3;background:var(--paper-2)}
.deliver-media img{width:100%;height:100%;object-fit:cover}

/* FAQ */
.faq-wrap{max-width:760px;margin:0 auto}
.faq-item{border-top:1px solid var(--line)}
.faq-item:last-child{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;text-align:left;font-size:17px;font-weight:600;color:var(--text);
  transition:color var(--ease);
}
.faq-q:hover{color:var(--lime)}
.faq-q:focus-visible{outline:2px solid var(--lime);outline-offset:4px;border-radius:8px}
.faq-icon{position:relative;width:18px;height:18px;flex:none;transition:transform var(--ease)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand-300);border-radius:2px}
.faq-icon::before{left:0;top:8px;width:18px;height:2px}
.faq-icon::after{top:0;left:8px;width:2px;height:18px}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-item.is-open .faq-q{color:var(--lime)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 240ms ease-out}
.faq-a p{padding:0 0 24px;font-size:15px;line-height:1.85;color:var(--text-2);max-width:660px}

/* CTA */
.cta-band{
  border-radius:var(--r-card);border:1px solid var(--line);
  background:linear-gradient(120deg,#241A55 0%,#3A2478 52%,#4B2E8C 100%);
  padding:40px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--shadow-card);position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;border-radius:50%;
  border:1px solid rgba(201,242,74,.22);
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:10px;position:relative;z-index:2}
.cta-band p{font-size:15px;color:rgba(237,234,251,.78);position:relative;z-index:2;max-width:560px}
.cta-band .btn{position:relative;z-index:2;flex:none}

/* 页脚 */
.site-footer{background:var(--ink-800);border-top:1px solid var(--line);margin-top:96px;padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1.1fr;gap:36px}
.footer-title{font-size:14px;font-weight:700;letter-spacing:.04em;color:var(--text);margin-bottom:16px}
.footer-links{display:grid;gap:11px}
.footer-links a{font-size:14px;color:var(--text-2);transition:color var(--ease)}
.footer-links a:hover{color:var(--lime)}
.footer-note{font-size:14px;line-height:1.8;color:var(--text-2)}
.social-row{display:flex;gap:12px}
.social-row a{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--text-2);
  transition:color var(--ease),border-color var(--ease),transform var(--ease);
}
.social-row a:hover{color:var(--lime);border-color:rgba(201,242,74,.45);transform:translateY(-2px)}
.social-row svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.footer-form{display:flex;gap:10px;margin-top:14px}
.field{
  width:100%;height:48px;padding:0 16px;border-radius:var(--r-field);
  background:var(--ink-900);border:1px solid var(--line);color:var(--text);
  font-size:14px;transition:border-color var(--ease),box-shadow var(--ease);
}
.field::placeholder{color:#6E6795}
.field:focus{outline:none;border-color:var(--lime);box-shadow:0 0 0 2px rgba(201,242,74,.22)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:13px;color:var(--text-2);
}

/* 响应式 */
@media (max-width:1279px){
  .container{padding:0 32px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .nav-links{display:none}
  .nav-actions .btn{display:none}
  .nav-toggle{display:flex}
  .section{padding:72px 0}
  .section-sm{padding:56px 0}
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:36px}
  .hero-sub{max-width:none}
  .badge-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .plans{grid-template-columns:minmax(0,1fr)}
  .plan-lead{min-height:0}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px 24px}
  .steps::before{display:none}
  .deliver-grid{grid-template-columns:minmax(0,1fr);gap:32px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
  .site-footer{margin-top:72px}
}
@media (max-width:639px){
  .container{padding:0 16px}
  .section{padding:56px 0}
  .page-hero{padding:64px 0 56px}
  .badge-grid{grid-template-columns:minmax(0,1fr)}
  .steps{grid-template-columns:minmax(0,1fr)}
  .progress-nodes{grid-template-columns:minmax(0,1fr)}
  .plan-row{grid-template-columns:80px minmax(0,1fr)}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .footer-form{flex-direction:column}
  .hero-actions .btn{width:100%}
  .cta-band .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
}