/* roulang page: index */
:root{
  --bg0:#08090B;
  --bg1:#0E1116;
  --bg2:#151A21;
  --bg3:#1B222B;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --brand:#2FE3B5;
  --brand-d:#17B98F;
  --accent:#FF7A3D;
  --ink1:#EAF0F4;
  --ink2:#A6B1BC;
  --ink3:#6C7885;
  --ok:#35D07F;
  --warn:#FFC24B;
  --err:#FF4D6D;
  --r-btn:10px;
  --r-card:16px;
  --r-img:12px;
  --r-badge:6px;
  --shadow-card:0 0 0 1px var(--line),0 24px 48px -32px rgba(0,0,0,.9);
  --shadow-glow:0 0 28px -10px rgba(47,227,181,.5);
  --sp-sec:104px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg0);
  color:var(--ink1);
  font-family:"PingFang SC","Noto Sans SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.3;}
p{margin:0;}
a{color:var(--brand);text-decoration:none;transition:color .22s var(--ease);}
a:hover{color:#6BF0CE;}
img{max-width:100%;display:block;border-style:none;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;font-size:inherit;color:inherit;background:none;border:none;cursor:pointer;}
input,textarea,select{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
::selection{background:rgba(47,227,181,.28);color:#fff;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}
.sec{padding:var(--sp-sec) 0;position:relative;}
.sec-head{max-width:760px;margin-bottom:48px;}
.sec-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--brand);font-weight:600;margin-bottom:16px;
  font-variant-numeric:tabular-nums;
}
.sec-tag::before{content:"";width:24px;height:1px;background:var(--brand);display:block;opacity:.7;}
.sec-title{font-size:clamp(24px,2.6vw,34px);line-height:1.3;margin-bottom:16px;}
.sec-desc{color:var(--ink2);font-size:16px;line-height:1.8;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:transform .2s var(--ease),background .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
  white-space:nowrap;border:1px solid transparent;cursor:pointer;
}
.btn-primary{background:var(--accent);color:#14100D;box-shadow:0 10px 26px -16px rgba(255,122,61,.9);}
.btn-primary:hover{background:#FF8F5C;color:#14100D;box-shadow:0 0 0 3px rgba(255,122,61,.18),0 14px 30px -16px rgba(255,122,61,.9);}
.btn-ghost{border-color:var(--line-strong);color:var(--ink1);background:rgba(255,255,255,.02);}
.btn-ghost:hover{border-color:rgba(47,227,181,.55);color:var(--brand);background:rgba(47,227,181,.06);}
.btn-brand{background:var(--brand);color:#04211A;}
.btn-brand:hover{background:#5DEECA;color:#04211A;box-shadow:0 0 0 3px rgba(47,227,181,.16);}
.btn:active{transform:translateY(1px);}
.btn:disabled{opacity:.45;pointer-events:none;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:200;
  background:rgba(8,9,11,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease),background .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 0 24px rgba(0,0,0,.85);background:rgba(8,9,11,.94);}
.nav-wrap{display:flex;align-items:center;gap:28px;height:68px;}
.logo{display:flex;align-items:center;gap:12px;color:var(--ink1);flex-shrink:0;}
.logo:hover{color:var(--ink1);}
.logo-mark{
  width:36px;height:36px;border-radius:9px;position:relative;flex-shrink:0;
  background:linear-gradient(140deg,rgba(47,227,181,.22),rgba(47,227,181,.04));
  border:1px solid rgba(47,227,181,.42);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 0 20px -8px rgba(47,227,181,.7) inset;
}
.logo-mark span{display:block;width:3px;border-radius:2px;background:var(--brand);}
.logo-mark span:nth-child(1){height:8px;opacity:.55;}
.logo-mark span:nth-child(2){height:16px;}
.logo-mark span:nth-child(3){height:11px;opacity:.75;}
.logo-mark span+span{margin-left:3px;}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-name{font-size:17px;font-weight:800;letter-spacing:.01em;}
.logo-sub{font-size:10px;letter-spacing:.2em;color:var(--ink3);text-transform:uppercase;font-variant-numeric:tabular-nums;}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-link{
  position:relative;display:inline-block;padding:10px 14px;
  font-size:15px;color:var(--ink2);font-weight:500;border-radius:8px;
  transition:color .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:2px;height:2px;width:0;
  background:var(--brand);border-radius:2px;transform:translateX(-50%);
  transition:width .26s var(--ease);box-shadow:0 0 10px rgba(47,227,181,.85);
}
.nav-link:hover{color:var(--ink1);}
.nav-link:hover::after{width:calc(100% - 20px);}
.nav-link.active{color:var(--brand);text-shadow:0 0 14px rgba(47,227,181,.45);}
.nav-link.active::after{width:24px;}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:16px;}
.nav-actions .btn{height:40px;padding:0 18px;font-size:14px;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--line-strong);align-items:center;justify-content:center;
  color:var(--ink1);margin-left:auto;
}
.nav-toggle:hover{border-color:rgba(47,227,181,.5);color:var(--brand);}

/* ---------- Drawer ---------- */
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);z-index:400;
  background:var(--bg1);border-left:1px solid var(--line);
  transform:translateX(105%);transition:transform .32s var(--ease);
  display:flex;flex-direction:column;padding:22px 22px 32px;
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px;}
.drawer-close{width:38px;height:38px;border-radius:9px;border:1px solid var(--line-strong);display:flex;align-items:center;justify-content:center;color:var(--ink2);}
.drawer-close:hover{color:var(--brand);border-color:rgba(47,227,181,.5);}
.drawer-nav{display:flex;flex-direction:column;gap:4px;}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 14px;border-radius:10px;color:var(--ink1);font-size:15px;font-weight:500;
  border:1px solid transparent;
}
.drawer-nav a:hover{background:rgba(47,227,181,.07);border-color:rgba(47,227,181,.28);color:var(--brand);}
.drawer-nav a i{font-size:12px;color:var(--ink3);}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:10px;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.62);z-index:300;
  opacity:0;pointer-events:none;transition:opacity .3s var(--ease);
}
.drawer-mask.open{opacity:1;pointer-events:auto;}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  padding:88px 0 96px;
  background:
    radial-gradient(720px 360px at 88% 8%,rgba(47,227,181,.14),transparent 68%),
    radial-gradient(560px 320px at 6% 92%,rgba(255,122,61,.09),transparent 70%),
    var(--bg0);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(circle at 50% 30%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 30%,#000 0%,transparent 78%);
}
.hero-grid{
  position:relative;display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:9px;
  padding:7px 14px;border-radius:var(--r-badge);
  background:rgba(47,227,181,.1);border:1px solid rgba(47,227,181,.28);
  color:var(--brand);font-size:12px;letter-spacing:.08em;font-weight:600;margin-bottom:22px;
}
.hero-badge i{font-size:11px;}
.hero h1{
  font-size:clamp(30px,4.4vw,52px);line-height:1.15;margin-bottom:22px;letter-spacing:-.015em;
}
.hero h1 em{
  font-style:normal;color:var(--brand);
  background:linear-gradient(180deg,transparent 68%,rgba(47,227,181,.24) 68%);
  padding:0 2px;
}
.hero-lead{font-size:17px;line-height:1.85;color:var(--ink2);max-width:560px;margin-bottom:32px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;}
.point-chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 13px;border-radius:var(--r-badge);
  border:1px solid var(--line);background:rgba(255,255,255,.025);
  font-size:13px;color:var(--ink2);
}
.point-chip i{color:var(--brand);font-size:11px;}
.hero-visual{position:relative;}
.hero-shot{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow-card);
  aspect-ratio:16/10;background:var(--bg2);
}
.hero-shot img{width:100%;height:100%;object-fit:cover;opacity:.9;}
.hero-shot::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(200deg,rgba(8,9,11,.1) 0%,rgba(8,9,11,.72) 100%);
}
.hero-float{
  position:absolute;left:-18px;bottom:-22px;
  background:rgba(21,26,33,.94);border:1px solid rgba(47,227,181,.32);
  border-radius:14px;padding:16px 20px;backdrop-filter:blur(8px);
  box-shadow:0 22px 44px -28px rgba(0,0,0,.95);
  display:flex;gap:18px;
}
.hero-float .num{font-size:24px;font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.1;}
.hero-float .lbl{font-size:12px;color:var(--ink3);letter-spacing:.04em;margin-top:4px;}
.hero-float .divider{width:1px;background:var(--line-strong);}
.hero-corner{
  position:absolute;top:-12px;right:-12px;width:70px;height:70px;
  border-top:1px solid rgba(47,227,181,.45);border-right:1px solid rgba(47,227,181,.45);
  border-radius:0 10px 0 0;pointer-events:none;
}

/* ---------- Merge / 卖点错位块 ---------- */
.pitch{background:var(--bg0);}
.pitch-grid{
  display:grid;grid-template-columns:1.1fr .9fr;grid-template-rows:auto auto;gap:24px;
}
.pitch-item{
  position:relative;padding:34px 32px;border-radius:var(--r-card);
  background:var(--bg1);border:1px solid var(--line);
  transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
  display:flex;flex-direction:column;
}
.pitch-item:hover{transform:translateY(-2px);border-color:rgba(47,227,181,.35);box-shadow:var(--shadow-glow);}
.pitch-item.big{grid-row:1 / span 2;}
.pitch-num{
  font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--brand);
  font-variant-numeric:tabular-nums;margin-bottom:18px;display:inline-flex;align-items:center;gap:10px;
}
.pitch-num::after{content:"";flex:1;height:1px;background:linear-gradient(90deg,rgba(47,227,181,.5),transparent);min-width:36px;}
.pitch-item h3{font-size:21px;margin-bottom:14px;}
.pitch-item p{color:var(--ink2);font-size:15px;line-height:1.85;margin-bottom:20px;}
.pitch-link{font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:8px;margin-top:auto;}
.pitch-link i{font-size:11px;transition:transform .22s var(--ease);}
.pitch-link:hover i{transform:translateX(4px);}
.pitch-media{
  margin-top:22px;border-radius:var(--r-img);overflow:hidden;
  border:1px solid var(--line);aspect-ratio:16/9;background:var(--bg2);
}
.pitch-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.pitch-item:hover .pitch-media img{transform:scale(1.03);}

/* ---------- Scenes ---------- */
.scenes{background:var(--bg1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.scene-row{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  padding:44px 0;
}
.scene-row+.scene-row{border-top:1px solid var(--line);}
.scene-row:nth-child(even) .scene-text{order:2;}
.scene-text{padding-left:22px;border-left:2px solid rgba(47,227,181,.55);}
.scene-row:nth-child(even) .scene-text{padding-left:0;padding-right:22px;border-left:none;border-right:2px solid rgba(255,122,61,.55);text-align:left;}
.scene-mini{
  display:inline-block;font-size:12px;letter-spacing:.1em;color:var(--brand);
  background:rgba(47,227,181,.1);border:1px solid rgba(47,227,181,.25);
  padding:5px 11px;border-radius:var(--r-badge);margin-bottom:16px;font-weight:600;
}
.scene-text h3{font-size:clamp(20px,2vw,26px);margin-bottom:14px;}
.scene-text p{color:var(--ink2);font-size:15.5px;line-height:1.85;margin-bottom:18px;}
.scene-list{display:flex;flex-direction:column;gap:10px;}
.scene-list li{display:flex;gap:10px;font-size:14.5px;color:var(--ink2);line-height:1.7;}
.scene-list i{color:var(--brand);font-size:12px;margin-top:7px;flex-shrink:0;}
.scene-media{
  border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line-strong);
  box-shadow:var(--shadow-card);aspect-ratio:16/10;background:var(--bg2);
}
.scene-media img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease);}
.scene-media:hover img{transform:scale(1.03);}

/* ---------- Metrics & proof ---------- */
.proof{background:var(--bg0);}
.metrics{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;margin-bottom:56px;
}
.metric{background:var(--bg1);padding:32px 26px;transition:background .25s var(--ease);}
.metric:hover{background:var(--bg2);}
.metric-num{
  font-size:clamp(28px,3vw,38px);font-weight:800;color:var(--ink1);
  font-variant-numeric:tabular-nums;line-height:1.1;letter-spacing:-.02em;
}
.metric-num span{font-size:16px;color:var(--brand);margin-left:4px;font-weight:700;}
.metric-lbl{font-size:13.5px;color:var(--ink3);margin-top:10px;line-height:1.6;}
.brandbar{
  display:flex;align-items:center;gap:14px;overflow-x:auto;padding:4px 0 18px;
  scrollbar-width:none;
}
.brandbar::-webkit-scrollbar{display:none;}
.brandbar-label{
  font-size:12px;letter-spacing:.1em;color:var(--ink3);white-space:nowrap;
  padding-right:14px;border-right:1px solid var(--line-strong);flex-shrink:0;
}
.brandbar .tile{
  flex:0 0 auto;width:104px;height:44px;border-radius:8px;
  background:rgba(255,255,255,.045);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  font-size:11.5px;color:var(--ink3);letter-spacing:.06em;
  transition:border-color .25s var(--ease),color .25s var(--ease);
}
.brandbar .tile:hover{border-color:rgba(47,227,181,.35);color:var(--ink2);}
.quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.quote{
  background:var(--bg1);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 26px;display:flex;flex-direction:column;gap:18px;
  transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.quote:hover{transform:translateY(-2px);border-color:rgba(47,227,181,.35);box-shadow:var(--shadow-glow);}
.quote-top{display:flex;align-items:center;gap:12px;}
.avatar{
  width:42px;height:42px;border-radius:10px;flex-shrink:0;
  background:linear-gradient(140deg,rgba(47,227,181,.24),rgba(47,227,181,.05));
  border:1px solid rgba(47,227,181,.3);
  display:flex;align-items:center;justify-content:center;
  color:var(--brand);font-weight:800;font-size:15px;
}
.quote-name{font-size:14.5px;font-weight:700;}
.quote-role{font-size:12.5px;color:var(--ink3);}
.quote p{color:var(--ink2);font-size:14.5px;line-height:1.85;}
.quote .stars{display:flex;gap:3px;color:var(--brand);font-size:11px;}

/* ---------- News / CMS ---------- */
.news{background:var(--bg1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;}
.news-head .sec-head{margin-bottom:0;}
.news-more{font-size:14.5px;font-weight:600;display:inline-flex;align-items:center;gap:8px;white-space:nowrap;}
.news-more i{font-size:11px;transition:transform .22s var(--ease);}
.news-more:hover i{transform:translateX(4px);}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  display:flex;flex-direction:column;gap:14px;
  background:var(--bg2);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;color:var(--ink1);
  transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.news-card:hover{transform:translateY(-2px);border-color:rgba(47,227,181,.35);box-shadow:var(--shadow-glow);color:var(--ink1);}
.badge{
  display:inline-flex;align-items:center;align-self:flex-start;
  padding:4px 10px;border-radius:var(--r-badge);
  background:rgba(47,227,181,.1);color:var(--brand);
  font-size:12px;font-weight:600;letter-spacing:.04em;
}
.news-card h3{
  font-size:18px;line-height:1.5;font-weight:700;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card p{
  color:var(--ink2);font-size:14.5px;line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  padding-top:16px;border-top:1px solid var(--line);
  font-size:13px;color:var(--ink3);font-variant-numeric:tabular-nums;
}
.news-meta .arrow{
  width:30px;height:30px;border-radius:8px;display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line-strong);color:var(--ink2);transition:all .22s var(--ease);
}
.news-card:hover .news-meta .arrow{border-color:var(--brand);color:var(--brand);background:rgba(47,227,181,.1);}
.news-empty{
  min-height:220px;border:1px dashed var(--line-strong);border-radius:var(--r-card);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  background:rgba(255,255,255,.015);text-align:center;padding:32px;
}
.news-empty i{font-size:26px;color:var(--ink3);}
.news-empty p{color:var(--ink3);font-size:14.5px;}

/* ---------- FAQ ---------- */
.faq{background:var(--bg0);}
.faq-wrap{max-width:900px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:first-of-type{border-top:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:24px 4px;text-align:left;font-size:17px;font-weight:600;color:var(--ink1);
  transition:color .22s var(--ease);
}
.faq-q:hover{color:var(--brand);}
.faq-icon{
  position:relative;width:20px;height:20px;flex-shrink:0;
  transition:transform .28s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;top:50%;left:50%;
}
.faq-icon::before{width:14px;height:2px;transform:translate(-50%,-50%);}
.faq-icon::after{width:2px;height:14px;transform:translate(-50%,-50%);transition:opacity .25s var(--ease);}
.faq-item.open .faq-icon{transform:rotate(135deg);}
.faq-item.open .faq-q{color:var(--brand);}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .34s var(--ease);
}
.faq-a-inner{
  padding:0 4px 26px 20px;border-left:2px solid var(--brand);
  color:var(--ink2);font-size:15px;line-height:1.85;margin-left:2px;
}

/* ---------- CTA banner ---------- */
.cta-band{padding:0 0 var(--sp-sec);}
.cta-box{
  position:relative;overflow:hidden;border-radius:20px;
  border:1px solid rgba(47,227,181,.24);
  background:
    radial-gradient(620px 280px at 88% 0%,rgba(47,227,181,.16),transparent 70%),
    radial-gradient(420px 240px at 4% 100%,rgba(255,122,61,.13),transparent 70%),
    var(--bg1);
  padding:56px 56px;
  display:flex;align-items:center;justify-content:space-between;gap:40px;
}
.cta-box::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  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:44px 44px;
  mask-image:radial-gradient(circle at 70% 30%,#000,transparent 75%);
  -webkit-mask-image:radial-gradient(circle at 70% 30%,#000,transparent 75%);
}
.cta-box h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:14px;position:relative;}
.cta-box p{color:var(--ink2);font-size:15.5px;line-height:1.85;max-width:560px;position:relative;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;flex-shrink:0;}

/* ---------- Footer ---------- */
.site-footer{background:var(--bg1);border-top:1px solid var(--line);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr .8fr;gap:48px;padding-bottom:52px;}
.footer-brand .logo{margin-bottom:18px;}
.footer-brand p{color:var(--ink3);font-size:14px;line-height:1.9;max-width:320px;}
.footer-col h4{font-size:14px;font-weight:700;letter-spacing:.04em;margin-bottom:18px;color:var(--ink1);}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a{color:var(--ink3);font-size:14px;transition:color .2s var(--ease);}
.footer-col a:hover{color:var(--brand);}
.footer-col li{color:var(--ink3);font-size:14px;}
.qr-box{
  width:104px;height:104px;border-radius:12px;border:1px solid var(--line-strong);
  background:
    repeating-linear-gradient(45deg,rgba(255,255,255,.05) 0 6px,transparent 6px 12px),
    var(--bg2);
  display:flex;align-items:center;justify-content:center;
  color:var(--ink3);font-size:12px;margin-bottom:12px;
}
.qr-cap{font-size:12.5px;color:var(--ink3);line-height:1.7;max-width:130px;}
.footer-bottom{
  border-top:1px solid var(--line);padding:22px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--ink3);
}
.footer-bottom .links{display:flex;gap:20px;flex-wrap:wrap;}
.footer-bottom a{color:var(--ink3);font-size:13px;}
.footer-bottom a:hover{color:var(--brand);}

/* ---------- Sticky conversion bar ---------- */
.sticky-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:250;
  background:rgba(14,17,22,.94);backdrop-filter:blur(12px);
  border-top:1px solid rgba(47,227,181,.34);
  padding:10px 0 calc(10px + env(safe-area-inset-bottom,0px));
  transition:transform .3s var(--ease);
}
.sticky-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;}
.sticky-text{font-size:14px;color:var(--ink2);display:flex;align-items:center;gap:10px;}
.sticky-text i{color:var(--brand);font-size:13px;}
.sticky-actions{display:flex;align-items:center;gap:10px;}
.sticky-close{
  display:none;width:32px;height:32px;border-radius:8px;
  border:1px solid var(--line-strong);color:var(--ink3);
  align-items:center;justify-content:center;
}
.sticky-close:hover{color:var(--brand);border-color:rgba(47,227,181,.5);}
.sticky-bar.hidden{transform:translateY(110%);}
body{padding-bottom:64px;}

/* ---------- Responsive ---------- */
@media (max-width:1180px){
  .hero-grid{gap:44px;}
  .footer-grid{grid-template-columns:1.2fr 1fr 1fr .7fr;gap:32px;}
}
@media (max-width:1024px){
  :root{--sp-sec:80px;}
  .container{padding:0 24px;}
  .main-nav{display:none;}
  .nav-actions{display:none;}
  .nav-toggle{display:flex;}
  .hero{padding:64px 0 78px;}
  .hero-grid{grid-template-columns:1fr;gap:48px;}
  .hero-lead{max-width:none;}
  .hero-shot{aspect-ratio:16/10;max-height:380px;}
  .hero-float{left:auto;right:14px;bottom:-18px;}
  .scene-row{grid-template-columns:1fr;gap:30px;padding:36px 0;}
  .scene-row:nth-child(even) .scene-text{order:0;}
  .metrics{grid-template-columns:repeat(2,1fr);}
  .quotes{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .cta-box{flex-direction:column;align-items:flex-start;padding:44px 36px;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:900px){
  .pitch-grid{grid-template-columns:1fr;}
  .pitch-item.big{grid-row:auto;}
}
@media (max-width:768px){
  :root{--sp-sec:64px;}
  body{font-size:15.5px;}
  .hero h1{font-size:clamp(27px,7vw,34px);}
  .hero-lead{font-size:15.5px;}
  .news-head{flex-direction:column;align-items:flex-start;gap:14px;}
  .news-grid{grid-template-columns:1fr;}
  .sec-head{margin-bottom:32px;}
  .cta-box{padding:36px 24px;border-radius:16px;}
  .sticky-close{display:flex;}
  .sticky-text{font-size:13px;}
  .sticky-text span{display:none;}
  .cta-actions .btn,.hero-cta .btn{flex:1 1 auto;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:12px;}
}
@media (max-width:560px){
  .container{padding:0 18px;}
  .metrics{grid-template-columns:1fr;}
  .metric{padding:24px 20px;}
  .hero-float{padding:12px 16px;gap:12px;bottom:-16px;right:8px;}
  .hero-float .num{font-size:20px;}
  .hero-shot{max-height:320px;}
  .pitch-item{padding:26px 22px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .btn{height:44px;padding:0 18px;font-size:14.5px;}
  .quote{padding:24px 20px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important;}
}

/* roulang page: category1 */
:root{
  --bg0:#08090B;
  --bg1:#0E1116;
  --bg2:#151A21;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --brand:#2FE3B5;
  --brand-d:#17B98F;
  --accent:#FF7A3D;
  --ink1:#EAF0F4;
  --ink2:#A6B1BC;
  --ink3:#6C7885;
  --success:#35D07F;
  --warn:#FFC24B;
  --danger:#FF4D6D;
  --r-btn:10px;
  --r-card:16px;
  --r-img:12px;
  --r-badge:6px;
  --shadow-card:0 0 0 1px var(--line), 0 24px 48px -32px rgba(0,0,0,.9);
  --shadow-soft:0 12px 30px -22px rgba(0,0,0,.85);
  --container:1200px;
  --font-cn:"PingFang SC","Noto Sans SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
  --font-num:"Inter","SF Mono",ui-monospace,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg0);
  color:var(--ink1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
  padding-bottom:64px;
}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-0.01em;color:var(--ink1);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:var(--brand);text-decoration:none;transition:color .22s ease,opacity .22s ease;}
a:hover{color:#5cf0ca;}
img{max-width:100%;display:block;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,textarea,select{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:90;
  background:rgba(8,9,11,.82);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:box-shadow .28s ease,background .28s ease;
}
.site-header.scrolled{
  background:rgba(8,9,11,.94);
  box-shadow:0 0 24px rgba(0,0,0,.55);
}
.nav-wrap{
  display:flex;
  align-items:center;
  gap:32px;
  min-height:68px;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--ink1);
  flex:0 0 auto;
}
.logo:hover{color:var(--ink1);opacity:.92;}
.logo-mark{
  display:inline-flex;
  align-items:flex-end;
  gap:3px;
  width:30px;
  height:30px;
  padding:5px;
  border:1px solid rgba(47,227,181,.38);
  border-radius:8px;
  background:linear-gradient(140deg,rgba(47,227,181,.22),rgba(47,227,181,0));
  box-shadow:0 0 20px -12px rgba(47,227,181,.9);
}
.logo-mark span{
  flex:1;
  background:linear-gradient(180deg,var(--brand),var(--brand-d));
  border-radius:2px;
  display:block;
}
.logo-mark span:nth-child(1){height:42%;}
.logo-mark span:nth-child(2){height:100%;}
.logo-mark span:nth-child(3){height:66%;}
.logo-text{display:flex;flex-direction:column;line-height:1.1;}
.logo-name{font-size:17px;font-weight:800;letter-spacing:-.01em;}
.logo-sub{font-size:11px;color:var(--ink3);letter-spacing:.16em;font-family:var(--font-num);margin-top:3px;}
.main-nav{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:8px;
  flex:1 1 auto;
}
.nav-link{
  position:relative;
  display:inline-block;
  padding:10px 14px;
  font-size:15px;
  color:var(--ink2);
  border-radius:8px;
  transition:color .22s ease,background .22s ease;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:2px;
  width:0;
  height:2px;
  background:var(--brand);
  border-radius:2px;
  transform:translateX(-50%);
  transition:width .26s ease;
  box-shadow:0 0 12px rgba(47,227,181,.8);
}
.nav-link:hover{color:var(--ink1);}
.nav-link:hover::after{width:calc(100% - 28px);}
.nav-link.active{
  color:var(--brand);
  text-shadow:0 0 18px rgba(47,227,181,.5);
}
.nav-link.active::after{width:24px;}
.nav-actions{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:42px;
  padding:0 18px;
  font-size:14px;
  font-weight:600;
  border-radius:var(--r-btn);
  transition:transform .18s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px);filter:brightness(.94);}
.btn-primary{
  background:var(--accent);
  color:#1A0D06;
  box-shadow:0 10px 26px -16px rgba(255,122,61,.9);
}
.btn-primary:hover{
  background:#ff8b55;
  color:#1A0D06;
  box-shadow:0 0 0 4px rgba(255,122,61,.16),0 14px 30px -16px rgba(255,122,61,.9);
}
.btn-ghost{
  border:1px solid var(--line-strong);
  color:var(--ink1);
  background:transparent;
}
.btn-ghost:hover{
  border-color:rgba(47,227,181,.6);
  color:var(--brand);
  box-shadow:0 0 22px -12px rgba(47,227,181,.8);
}
.btn-sm{height:36px;padding:0 14px;font-size:13px;}
.btn-lg{height:50px;padding:0 26px;font-size:15px;}
.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  border:1px solid var(--line-strong);
  border-radius:10px;
  color:var(--ink1);
  font-size:17px;
  align-items:center;
  justify-content:center;
}
.nav-toggle:hover{border-color:rgba(47,227,181,.6);color:var(--brand);}

/* ============ 抽屉 ============ */
.drawer{
  position:fixed;
  top:0;
  right:0;
  width:min(84vw,340px);
  height:100%;
  background:var(--bg1);
  border-left:1px solid var(--line);
  z-index:120;
  transform:translateX(102%);
  transition:transform .32s cubic-bezier(.4,0,.2,1);
  display:flex;
  flex-direction:column;
  padding:22px 22px 32px;
  overflow-y:auto;
}
.drawer.open{transform:translateX(0);}
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(4,5,7,.7);
  z-index:110;
  opacity:0;
  pointer-events:none;
  transition:opacity .3s ease;
}
.drawer-mask.show{opacity:1;pointer-events:auto;}
.drawer-close{
  align-self:flex-end;
  width:38px;height:38px;
  border:1px solid var(--line-strong);
  border-radius:9px;
  color:var(--ink2);
  display:flex;align-items:center;justify-content:center;
}
.drawer-close:hover{color:var(--brand);border-color:rgba(47,227,181,.5);}
.drawer .logo{margin:18px 0 26px;}
.drawer-nav{display:flex;flex-direction:column;gap:4px;}
.drawer-nav a{
  display:block;
  padding:13px 12px;
  border-radius:9px;
  color:var(--ink2);
  font-size:15px;
  border:1px solid transparent;
}
.drawer-nav a:hover{background:rgba(255,255,255,.04);color:var(--ink1);}
.drawer-nav a.active{
  color:var(--brand);
  background:rgba(47,227,181,.08);
  border-color:rgba(47,227,181,.28);
}
.drawer-cta{
  margin-top:auto;
  padding-top:26px;
  display:flex;
  flex-direction:column;
  gap:10px;
}
.drawer-cta .btn{width:100%;}

/* ============ 页头 ============ */
.page-head{
  position:relative;
  overflow:hidden;
  padding:52px 0 72px;
  background:
    radial-gradient(560px 300px at 88% 4%,rgba(47,227,181,.14),transparent 68%),
    linear-gradient(180deg,var(--bg1),var(--bg0));
  border-bottom:1px solid var(--line);
}
.page-head::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 30% 20%,#000 12%,transparent 74%);
  -webkit-mask-image:radial-gradient(circle at 30% 20%,#000 12%,transparent 74%);
  pointer-events:none;
}
.page-head .container{position:relative;z-index:2;}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--ink3);
  margin-bottom:22px;
}
.breadcrumb a{color:var(--ink2);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:var(--ink3);}
.page-head-grid{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:48px;
  align-items:center;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--brand);
  padding:6px 12px;
  border-radius:var(--r-badge);
  background:rgba(47,227,181,.1);
  border:1px solid rgba(47,227,181,.26);
  font-family:var(--font-num);
  margin-bottom:18px;
}
.page-head h1{
  font-size:clamp(30px,4vw,48px);
  line-height:1.15;
  font-weight:800;
  margin-bottom:18px;
}
.lead{
  font-size:16.5px;
  color:var(--ink2);
  line-height:1.85;
  max-width:600px;
}
.head-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:28px;
}
.head-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px 22px;
  margin-top:26px;
}
.head-tags li{
  display:inline-flex;
  align-items:center;
  gap:7px;
  font-size:13.5px;
  color:var(--ink2);
}
.head-tags i{color:var(--brand);font-size:12px;}
.head-visual{
  position:relative;
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  background:var(--bg2);
  aspect-ratio:16/10;
}
.head-visual img{width:100%;height:100%;object-fit:cover;}
.head-visual::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(8,9,11,0) 42%,rgba(8,9,11,.72));
  pointer-events:none;
}
.float-card{
  position:absolute;
  left:18px;
  bottom:18px;
  z-index:3;
  padding:12px 16px;
  border-radius:12px;
  background:rgba(14,17,22,.88);
  border:1px solid rgba(47,227,181,.3);
  backdrop-filter:blur(8px);
  box-shadow:0 0 28px -14px rgba(47,227,181,.8);
}
.float-card strong{
  display:block;
  font-family:var(--font-num);
  font-size:22px;
  color:var(--brand);
  line-height:1.2;
}
.float-card span{font-size:12.5px;color:var(--ink2);}

/* ============ 通用板块 ============ */
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-alt{background:var(--bg1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head h2{
  font-size:clamp(24px,2.6vw,34px);
  line-height:1.3;
  margin-bottom:14px;
}
.section-head p{color:var(--ink2);font-size:16px;line-height:1.85;}
.kicker{
  display:inline-block;
  font-size:12px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--brand);
  font-family:var(--font-num);
  margin-bottom:12px;
}

/* 说明小卡 */
.note-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:22px;
}
.note-card{
  background:var(--bg2);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px 24px;
  box-shadow:var(--shadow-soft);
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.note-card:hover{
  transform:translateY(-2px);
  border-color:rgba(47,227,181,.35);
  box-shadow:0 0 28px -10px rgba(47,227,181,.5);
}
.note-card i{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:40px;height:40px;
  border-radius:10px;
  background:rgba(47,227,181,.1);
  border:1px solid rgba(47,227,181,.26);
  color:var(--brand);
  font-size:16px;
  margin-bottom:16px;
}
.note-card h3{font-size:18px;margin-bottom:10px;}
.note-card p{font-size:14.5px;color:var(--ink2);line-height:1.8;}

/* 纵向图文块 */
.flow-list{display:flex;flex-direction:column;gap:28px;}
.flow-item{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:0;
  background:var(--bg2);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:border-color .26s ease,box-shadow .26s ease,transform .26s ease;
}
.flow-item:hover{
  transform:translateY(-2px);
  border-color:rgba(47,227,181,.35);
  box-shadow:0 0 32px -12px rgba(47,227,181,.5);
}
.flow-media{
  position:relative;
  min-height:280px;
  background:var(--bg1);
  overflow:hidden;
}
.flow-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease;}
.flow-item:hover .flow-media img{transform:scale(1.03);}
.flow-body{padding:36px 36px 32px;display:flex;flex-direction:column;justify-content:center;}
.flow-body .num{
  font-family:var(--font-num);
  font-size:13px;
  letter-spacing:.18em;
  color:var(--brand);
  margin-bottom:12px;
}
.flow-body h3{font-size:22px;line-height:1.4;margin-bottom:12px;}
.flow-body p{font-size:15px;color:var(--ink2);line-height:1.85;}
.flow-points{margin-top:18px;display:flex;flex-direction:column;gap:9px;}
.flow-points li{
  position:relative;
  padding-left:18px;
  font-size:14px;
  color:var(--ink2);
}
.flow-points li::before{
  content:"";
  position:absolute;
  left:0;top:10px;
  width:6px;height:6px;
  border-radius:2px;
  background:var(--brand);
  box-shadow:0 0 10px rgba(47,227,181,.8);
}
.flow-item.reverse .flow-media{order:2;}

/* 流程步骤 */
.step-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
}
.step-card{
  position:relative;
  padding:28px 22px 24px;
  background:var(--bg2);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  transition:border-color .24s ease,transform .24s ease,box-shadow .24s ease;
}
.step-card:hover{
  transform:translateY(-2px);
  border-color:rgba(47,227,181,.35);
  box-shadow:0 0 26px -12px rgba(47,227,181,.55);
}
.step-card::before{
  content:"";
  position:absolute;
  left:22px;top:0;
  width:34px;height:2px;
  background:var(--brand);
  box-shadow:0 0 12px rgba(47,227,181,.9);
}
.step-num{
  font-family:var(--font-num);
  font-size:28px;
  font-weight:700;
  color:rgba(47,227,181,.32);
  line-height:1;
  margin-bottom:14px;
}
.step-card h3{font-size:17px;margin-bottom:9px;}
.step-card p{font-size:14px;color:var(--ink2);line-height:1.8;}

/* 数据条 */
.stats{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
  padding:34px 30px;
  background:var(--bg2);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
}
.stat-item{border-left:1px solid var(--line);padding-left:24px;}
.stat-item:first-child{border-left:0;padding-left:0;}
.stat-item strong{
  display:block;
  font-family:var(--font-num);
  font-size:clamp(26px,3vw,36px);
  font-weight:700;
  color:var(--ink1);
  line-height:1.15;
  font-variant-numeric:tabular-nums;
}
.stat-item strong em{
  font-style:normal;
  font-size:15px;
  color:var(--brand);
  margin-left:4px;
}
.stat-item span{display:block;font-size:13.5px;color:var(--ink3);margin-top:8px;}

/* FAQ */
.faq-list{
  border-top:1px solid var(--line);
}
.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 4px;
  text-align:left;
  font-size:17px;
  font-weight:600;
  color:var(--ink1);
  transition:color .22s ease;
}
.faq-q:hover{color:var(--brand);}
.faq-q i{
  flex:0 0 auto;
  font-size:14px;
  color:var(--brand);
  transition:transform .3s ease;
}
.faq-item.open .faq-q i{transform:rotate(45deg);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .34s ease;
}
.faq-a .inner{
  padding:0 4px 24px 18px;
  border-left:2px solid var(--brand);
  margin-left:2px;
  font-size:15px;
  line-height:1.85;
  color:var(--ink2);
}
.faq-item.open .faq-a{max-height:420px;}

/* CTA 横幅 */
.cta-band{
  position:relative;
  padding:64px 0;
  background:
    radial-gradient(520px 260px at 78% 0%,rgba(47,227,181,.16),transparent 70%),
    linear-gradient(150deg,#101820,#0A0D11);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;
  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:56px 56px;
  pointer-events:none;
}
.cta-inner{
  position:relative;
  z-index:2;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  flex-wrap:wrap;
}
.cta-inner h2{font-size:clamp(22px,2.4vw,30px);line-height:1.35;margin-bottom:10px;}
.cta-inner p{color:var(--ink2);font-size:15px;max-width:620px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* 固定转化条 */
.sticky-bar{
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:100;
  background:rgba(10,13,17,.94);
  border-top:1px solid rgba(47,227,181,.35);
  backdrop-filter:blur(12px);
  box-shadow:0 -10px 30px -18px rgba(0,0,0,.9);
}
.sticky-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:60px;
  padding:8px 0;
}
.sticky-text{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:14px;
  color:var(--ink2);
}
.sticky-text i{color:var(--brand);font-size:13px;}
.sticky-right{display:flex;align-items:center;gap:10px;}
.sticky-close{
  display:none;
  width:32px;height:32px;
  border:1px solid var(--line-strong);
  border-radius:8px;
  color:var(--ink2);
  font-size:13px;
  align-items:center;
  justify-content:center;
}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--bg1);
  border-top:1px solid var(--line);
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr .9fr;
  gap:40px;
  padding-bottom:40px;
  border-bottom:1px solid var(--line);
}
.footer-brand p{
  margin-top:16px;
  font-size:14px;
  color:var(--ink2);
  line-height:1.9;
  max-width:340px;
}
.footer-col h4{
  font-size:14px;
  color:var(--ink1);
  margin-bottom:16px;
  letter-spacing:.02em;
}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col li{font-size:14px;color:var(--ink2);line-height:1.7;}
.footer-col a{color:var(--ink2);}
.footer-col a:hover{color:var(--brand);}
.qr-box{
  width:104px;height:104px;
  border:1px dashed rgba(255,255,255,.2);
  border-radius:10px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:12.5px;
  color:var(--ink3);
  background:rgba(255,255,255,.02);
}
.qr-cap{font-size:12.5px;color:var(--ink3);margin-top:10px;line-height:1.7;}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  flex-wrap:wrap;
  padding-top:22px;
  font-size:13px;
  color:var(--ink3);
}
.footer-bottom .links{display:flex;gap:20px;flex-wrap:wrap;}
.footer-bottom .links a{color:var(--ink3);}
.footer-bottom .links a:hover{color:var(--brand);}

/* ============ 响应式 ============ */
@media (max-width:1180px){
  .container{padding:0 24px;}
  .nav-wrap{gap:20px;}
  .main-nav{gap:2px;}
  .nav-link{padding:10px 10px;font-size:14px;}
  .page-head-grid{gap:34px;}
  .section{padding:80px 0;}
}
@media (max-width:1024px){
  .main-nav,.nav-actions{display:none;}
  .nav-toggle{display:inline-flex;margin-left:auto;}
  .page-head-grid{grid-template-columns:1fr;gap:32px;}
  .head-visual{aspect-ratio:16/9;}
  .note-grid{grid-template-columns:1fr 1fr;}
  .note-card:last-child{grid-column:1 / -1;}
  .step-grid{grid-template-columns:1fr 1fr;}
  .stats{grid-template-columns:1fr 1fr;gap:26px 20px;}
  .stat-item:nth-child(3){border-left:0;padding-left:0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .flow-body{padding:28px;}
}
@media (max-width:768px){
  body{font-size:15.5px;}
  .page-head{padding:36px 0 52px;}
  .section{padding:60px 0;}
  .section-tight{padding:52px 0;}
  .note-grid{grid-template-columns:1fr;gap:16px;}
  .note-card:last-child{grid-column:auto;}
  .flow-item{grid-template-columns:1fr;}
  .flow-item.reverse .flow-media{order:0;}
  .flow-media{min-height:220px;aspect-ratio:16/9;}
  .flow-item:hover{transform:none;}
  .flow-item:hover .flow-media img{transform:none;}
  .step-grid{grid-template-columns:1fr;}
  .stats{grid-template-columns:1fr;padding:26px 22px;}
  .stat-item{border-left:0;padding-left:0;border-top:1px solid var(--line);padding-top:18px;}
  .stat-item:first-child{border-top:0;padding-top:0;}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:24px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:12px;}
  .sticky-close{display:inline-flex;}
  .sticky-text{font-size:13px;}
  .head-actions .btn{flex:1 1 auto;}
}
@media (max-width:560px){
  .container{padding:0 18px;}
  .page-head h1{font-size:28px;}
  .section-head h2{font-size:23px;}
  .lead{font-size:15px;}
  .btn{height:44px;padding:0 16px;font-size:14px;}
  .btn-lg{height:48px;padding:0 20px;}
  .head-tags{gap:8px 16px;}
  .head-tags li{font-size:12.5px;}
  .flow-body{padding:24px 20px;}
  .flow-body h3{font-size:19px;}
  .faq-q{font-size:15.5px;padding:18px 2px;}
  .faq-a .inner{font-size:14.5px;padding-left:14px;}
  .sticky-text span{display:none;}
  .sticky-inner{min-height:58px;}
}

/* roulang page: article */
:root{
  --bg0:#08090B;
  --bg1:#0E1116;
  --bg2:#151A21;
  --bg3:#1B222B;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --brand:#2FE3B5;
  --brand-d:#17B98F;
  --accent:#FF7A3D;
  --ink1:#EAF0F4;
  --ink2:#A6B1BC;
  --ink3:#6C7885;
  --ok:#35D07F;
  --warn:#FFC24B;
  --err:#FF4D6D;
  --r-sm:6px;
  --r-md:10px;
  --r-lg:16px;
  --r-xl:22px;
  --shadow-card:0 0 0 1px var(--line),0 24px 48px -32px rgba(0,0,0,.9);
  --shadow-glow:0 0 28px -10px rgba(47,227,181,.5);
  --container:1200px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:88px;}
body{
  margin:0;
  padding-bottom:60px;
  background:var(--bg0);
  color:var(--ink1);
  font-family:"PingFang SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--brand-d);}
button{font-family:inherit;}
h1,h2,h3,h4{pargin:0;letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;}
::selection{background:rgba(47,227,181,.28);color:#fff;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}

.container{
  width:100%;
  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:44px;
  padding:0 20px;
  border-radius:var(--r-md);
  border:1px solid transparent;
  font-size:14.5px;
  font-weight:600;
  line-height:1;
  letter-spacing:.02em;
  white-space:nowrap;
  cursor:pointer;
  transition:transform .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease),filter .18s var(--ease);
}
.btn-primary{
  background:linear-gradient(180deg,var(--brand),var(--brand-d));
  color:#06231C;
  box-shadow:0 10px 24px -14px rgba(47,227,181,.9);
}
.btn-primary:hover{
  color:#06231C;
  filter:brightness(1.08);
  box-shadow:0 0 0 1px rgba(47,227,181,.45),0 0 24px -6px rgba(47,227,181,.6);
}
.btn-ghost{
  background:transparent;
  color:var(--ink1);
  border-color:var(--line-strong);
}
.btn-ghost:hover{
  border-color:var(--brand);
  color:var(--brand);
  box-shadow:0 0 20px -10px rgba(47,227,181,.7);
}
.btn-accent{
  background:linear-gradient(180deg,#FF8D57,var(--accent));
  color:#25120A;
  box-shadow:0 10px 24px -14px rgba(255,122,61,.9);
}
.btn-accent:hover{
  color:#25120A;
  filter:brightness(1.06);
  box-shadow:0 0 0 1px rgba(255,122,61,.45),0 0 24px -6px rgba(255,122,61,.55);
}
.btn:active{transform:translateY(1px);filter:brightness(.95);}
.btn-sm{height:38px;padding:0 16px;font-size:13.5px;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(8,9,11,.82);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:box-shadow .3s var(--ease),background .3s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(8,9,11,.95);
  box-shadow:0 0 24px rgba(0,0,0,.6);
}
.nav-wrap{
  position:relative;
  display:flex;
  align-items:center;
  gap:26px;
  min-height:68px;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:11px;
  color:var(--ink1);
  text-decoration:none;
  flex:none;
}
.logo:hover{color:var(--ink1);}
.logo-mark{
  width:34px;
  height:34px;
  flex:none;
  border-radius:9px;
  border:1px solid rgba(47,227,181,.4);
  background:radial-gradient(120% 120% at 20% 0%,rgba(47,227,181,.26),rgba(47,227,181,0) 70%);
  display:flex;
  align-items:flex-end;
  justify-content:center;
  gap:3px;
  padding-bottom:8px;
  box-shadow:inset 0 0 14px -6px rgba(47,227,181,.8);
}
.logo-mark span{display:block;width:3px;border-radius:2px;background:var(--brand);}
.logo-mark span:nth-child(1){height:8px;opacity:.55;}
.logo-mark span:nth-child(2){height:15px;}
.logo-mark span:nth-child(3){height:11px;opacity:.8;}
.logo-text{display:flex;flex-direction:column;line-height:1.1;}
.logo-name{font-size:16px;font-weight:800;letter-spacing:.01em;}
.logo-sub{font-size:10.5px;font-weight:600;letter-spacing:.18em;color:var(--ink3);margin-top:3px;}
.main-nav{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:68px;
  padding:0 14px;
  font-size:15px;
  color:var(--ink2);
  text-decoration:none;
  transition:color .2s var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:50%;
  right:50%;
  bottom:16px;
  height:2px;
  border-radius:2px;
  background:var(--brand);
  transition:left .26s var(--ease),right .26s var(--ease);
}
.nav-link:hover{color:var(--ink1);}
.nav-link:hover::after{left:14px;right:14px;}
.nav-link.active{color:var(--brand);text-shadow:0 0 14px rgba(47,227,181,.55);}
.nav-link.active::after{left:14px;right:14px;}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:8px;}
.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  margin-left:auto;
  width:42px;
  height:42px;
  border-radius:10px;
  border:1px solid var(--line);
  background:var(--bg2);
  color:var(--ink1);
  font-size:17px;
  cursor:pointer;
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.nav-toggle:hover{border-color:rgba(47,227,181,.45);color:var(--brand);}

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;
  top:0;
  right:0;
  bottom:0;
  width:min(320px,86vw);
  z-index:90;
  background:var(--bg1);
  border-left:1px solid var(--line);
  padding:22px 22px 32px;
  display:flex;
  flex-direction:column;
  gap:8px;
  transform:translateX(102%);
  transition:transform .32s var(--ease);
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-bottom:16px;
  margin-bottom:8px;
  border-bottom:1px solid var(--line);
}
.drawer-title{font-size:13px;letter-spacing:.14em;color:var(--ink3);font-weight:700;}
.drawer-close{
  width:36px;height:36px;border-radius:9px;
  border:1px solid var(--line);background:var(--bg2);
  color:var(--ink2);font-size:15px;cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;
}
.drawer-close:hover{color:var(--brand);border-color:rgba(47,227,181,.4);}
.drawer a.d-link{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:13px 14px;
  border-radius:var(--r-md);
  color:var(--ink2);
  font-size:15px;
  text-decoration:none;
  border:1px solid transparent;
  transition:.2s var(--ease);
}
.drawer a.d-link:hover,
.drawer a.d-link.active{
  color:var(--brand);
  background:rgba(47,227,181,.07);
  border-color:rgba(47,227,181,.22);
}
.drawer-actions{display:grid;gap:10px;margin-top:18px;}
.drawer-mask{
  position:fixed;
  inset:0;
  z-index:80;
  background:rgba(0,0,0,.62);
  opacity:0;
  visibility:hidden;
  transition:opacity .3s var(--ease),visibility .3s var(--ease);
}
.drawer-mask.is-open{opacity:1;visibility:visible;}

/* ---------- 文章页头 ---------- */
.article-hero{
  position:relative;
  padding:52px 0 44px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
  background:
    radial-gradient(90% 120% at 88% -20%,rgba(47,227,181,.11),rgba(47,227,181,0) 62%),
    radial-gradient(70% 100% at 4% 0%,rgba(255,122,61,.06),rgba(255,122,61,0) 60%),
    var(--bg0);
}
.article-hero::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  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:56px 56px;
  -webkit-mask-image:radial-gradient(72% 90% at 18% 0%,#000,transparent 76%);
  mask-image:radial-gradient(72% 90% at 18% 0%,#000,transparent 76%);
}
.article-hero > .container{position:relative;z-index:1;}

.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--ink3);
  margin-bottom:22px;
}
.crumbs a{color:var(--ink2);text-decoration:none;}
.crumbs a:hover{color:var(--brand);}
.crumb-sep{color:var(--ink3);opacity:.6;}
.crumb-cur{
  color:var(--ink3);
  max-width:340px;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}

.article-head{max-width:840px;}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:26px;
  padding:0 11px;
  border-radius:var(--r-sm);
  background:rgba(47,227,181,.12);
  border:1px solid rgba(47,227,181,.26);
  color:var(--brand);
  font-size:12px;
  font-weight:600;
  letter-spacing:.06em;
}
.article-head h1{
  font-size:clamp(26px,3.6vw,42px);
  line-height:1.35;
  font-weight:800;
  color:var(--ink1);
  margin:16px 0 18px;
  word-break:break-word;
}
.meta-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px;
  font-size:13px;
  color:var(--ink3);
}
.meta-row i{margin-right:5px;color:var(--ink3);}
.meta-sep{width:1px;height:12px;background:var(--line-strong);display:inline-block;}
.article-cover{
  margin-top:34px;
  max-width:840px;
  border-radius:var(--r-md);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--bg2);
  box-shadow:var(--shadow-card);
}
.article-cover img{
  width:100%;
  aspect-ratio:16/6.5;
  object-fit:cover;
}

/* ---------- 正文布局 ---------- */
.article-main{padding:60px 0 84px;background:var(--bg0);}
.article-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:44px;
  max-width:840px;
  margin:0 auto;
}
.article-panel{min-width:0;}

.article-body{
  font-size:17px;
  line-height:1.9;
  color:#C7D2DA;
  word-break:break-word;
}
.article-body p{margin:0 0 22px;}
.article-body h2{
  position:relative;
  font-size:clamp(20px,2.2vw,26px);
  line-height:1.42;
  font-weight:800;
  color:var(--ink1);
  margin:44px 0 18px;
  padding-left:16px;
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;
  top:7px;
  bottom:7px;
  width:4px;
  border-radius:2px;
  background:linear-gradient(180deg,var(--brand),rgba(47,227,181,.12));
}
.article-body h3{
  font-size:19px;
  font-weight:700;
  color:var(--ink1);
  margin:32px 0 12px;
}
.article-body h4{
  font-size:17px;
  font-weight:700;
  color:var(--ink1);
  margin:26px 0 10px;
}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(47,227,181,.35);}
.article-body a:hover{border-bottom-color:var(--brand);}
.article-body ul,
.article-body ol{
  margin:0 0 22px;
  padding-left:22px;
}
.article-body li{margin:8px 0;line-height:1.8;}
.article-body li::marker{color:var(--brand);}
.article-body blockquote{
  margin:28px 0;
  padding:18px 22px;
  border-left:3px solid var(--brand);
  background:rgba(47,227,181,.06);
  border-radius:0 var(--r-md) var(--r-md) 0;
  color:var(--ink2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body figure{margin:28px 0;}
.article-body img{
  width:100%;
  height:auto;
  border-radius:12px;
  border:1px solid var(--line);
}
.article-body figcaption{
  font-size:13px;
  color:var(--ink3);
  text-align:center;
  margin-top:10px;
  line-height:1.6;
}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:0 0 22px;
  font-size:15px;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
}
.article-body th,
.article-body td{
  padding:12px 14px;
  text-align:left;
  border-bottom:1px solid var(--line);
  line-height:1.7;
}
.article-body th{
  font-weight:700;
  color:var(--ink1);
  background:rgba(255,255,255,.035);
}
.article-body tr:last-child td{border-bottom:none;}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.88em;
  padding:2px 6px;
  border-radius:5px;
  background:rgba(255,255,255,.06);
  border:1px solid var(--line);
  color:var(--brand);
}
.article-body pre{
  margin:0 0 22px;
  padding:18px;
  background:var(--bg1);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow-x:auto;
}
.article-body pre code{background:none;border:none;padding:0;color:inherit;}
.article-body hr{border:none;border-top:1px solid var(--line);margin:36px 0;}
.article-body > *:first-child{margin-top:0;}
.article-body > *:last-child{margin-bottom:0;}

.article-foot{
  margin-top:44px;
  padding-top:26px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
}
.tag{
  display:inline-flex;
  align-items:center;
  height:28px;
  padding:0 12px;
  border-radius:var(--r-sm);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  font-size:12.5px;
  color:var(--ink2);
  text-decoration:none;
  transition:.2s var(--ease);
}
.tag:hover{
  color:var(--brand);
  border-color:rgba(47,227,181,.4);
  background:rgba(47,227,181,.07);
}
.back-link{
  margin-left:auto;
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13.5px;
  color:var(--ink2);
  text-decoration:none;
}
.back-link:hover{color:var(--brand);}

/* ---------- 空态 ---------- */
.empty-state{
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:14px;
  padding:64px 24px;
  min-height:220px;
  border:1px dashed var(--line-strong);
  border-radius:var(--r-lg);
  background:var(--bg1);
  text-align:center;
}
.empty-state i{font-size:32px;color:var(--brand);opacity:.85;}
.empty-state p{margin:0;font-size:16px;color:var(--ink2);}

/* ---------- 侧栏 ---------- */
.article-aside{min-width:0;display:grid;gap:20px;align-content:start;}
.aside-card{
  background:var(--bg2);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:22px;
  box-shadow:var(--shadow-card);
}
.aside-card h3{
  font-size:14px;
  font-weight:700;
  color:var(--ink1);
  letter-spacing:.04em;
  margin:0 0 4px;
}
.aside-card .aside-sub{
  font-size:12.5px;
  color:var(--ink3);
  margin:6px 0 0;
  line-height:1.7;
}
.aside-list{list-style:none;display:grid;gap:8px;margin:16px 0 0;}
.aside-list a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:9px 12px;
  border-radius:8px;
  border:1px solid transparent;
  font-size:14px;
  color:var(--ink2);
  text-decoration:none;
  transition:.2s var(--ease);
}
.aside-list a:hover{
  background:rgba(47,227,181,.07);
  border-color:rgba(47,227,181,.24);
  color:var(--brand);
}
.aside-list i{font-size:11px;opacity:.7;}
.aside-cta{
  margin-top:16px;
  width:100%;
}

/* ---------- 相关推荐 ---------- */
.related{padding:0 0 72px;background:var(--bg0);}
.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px;
  margin-bottom:28px;
}
.section-head h2{
  font-size:clamp(22px,2.4vw,30px);
  font-weight:800;
  color:var(--ink1);
  line-height:1.3;
}
.section-head p{
  margin:8px 0 0;
  font-size:14.5px;
  color:var(--ink2);
  max-width:560px;
}
.link-more{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--brand);
  font-weight:600;
}
.link-more:hover{gap:12px;}
.grid-3{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.card{
  display:flex;
  flex-direction:column;
  background:var(--bg2);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  color:inherit;
  text-decoration:none;
  box-shadow:var(--shadow-card);
  transition:transform .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.card:hover{
  transform:translateY(-2px);
  border-color:rgba(47,227,181,.35);
  box-shadow:var(--shadow-card),var(--shadow-glow);
  color:inherit;
}
.card-media{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:linear-gradient(135deg,var(--bg3),var(--bg1));
}
.card-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .45s var(--ease);
}
.card:hover .card-media img{transform:scale(1.03);}
.card-body{
  display:flex;
  flex-direction:column;
  gap:10px;
  padding:18px 20px 20px;
  flex:1;
}
.card-body h3{
  font-size:17.5px;
  line-height:1.45;
  font-weight:700;
  color:var(--ink1);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.card-body p{
  font-size:14px;
  line-height:1.7;
  color:var(--ink2);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.card-foot{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:12.5px;
  color:var(--ink3);
}
.card-foot .arrow{
  width:26px;height:26px;
  border-radius:50%;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border:1px solid var(--line);
  color:var(--ink2);
  font-size:11px;
  transition:.25s var(--ease);
}
.card:hover .card-foot .arrow{
  color:#06231C;
  background:var(--brand);
  border-color:var(--brand);
}

/* ---------- CTA ---------- */
.cta-block{padding:0 0 88px;background:var(--bg0);}
.cta-inner{
  position:relative;
  display:grid;
  grid-template-columns:1.12fr .88fr;
  gap:44px;
  align-items:center;
  padding:48px;
  border-radius:var(--r-xl);
  border:1px solid var(--line);
  background:
    radial-gradient(75% 130% at 100% 0%,rgba(47,227,181,.12),rgba(47,227,181,0) 62%),
    linear-gradient(135deg,rgba(47,227,181,.07),rgba(47,227,181,0) 55%),
    var(--bg1);
  overflow:hidden;
}
.cta-inner::after{
  content:"";
  position:absolute;
  right:-60px;
  top:-60px;
  width:220px;
  height:220px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(47,227,181,.18),transparent 68%);
  pointer-events:none;
}
.cta-copy{position:relative;z-index:1;}
.cta-copy h2{
  font-size:clamp(22px,2.6vw,30px);
  font-weight:800;
  line-height:1.35;
  color:var(--ink1);
}
.cta-copy p{
  margin:14px 0 0;
  font-size:15px;
  line-height:1.85;
  color:var(--ink2);
  max-width:520px;
}
.cta-points{
  list-style:none;
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin:22px 0 0;
}
.cta-points li{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 14px;
  border-radius:var(--r-sm);
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  font-size:13px;
  color:var(--ink2);
}
.cta-points i{color:var(--brand);font-size:12px;}
.contact-card{
  position:relative;
  z-index:1;
  background:rgba(8,9,11,.55);
  border:1px solid var(--line-strong);
  border-radius:var(--r-lg);
  padding:26px;
  backdrop-filter:blur(6px);
}
.contact-card h3{
  font-size:15px;
  font-weight:700;
  color:var(--ink1);
  margin:0 0 16px;
}
.contact-list{list-style:none;display:grid;gap:12px;}
.contact-list li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:13.5px;
  line-height:1.7;
  color:var(--ink2);
}
.contact-list i{
  width:22px;
  height:22px;
  flex:none;
  border-radius:6px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:rgba(47,227,181,.12);
  color:var(--brand);
  font-size:11px;
  margin-top:2px;
}
.contact-card .btn{margin-top:20px;width:100%;}

/* ---------- 固定转化条 ---------- */
.sticky-bar{
  position:fixed;
  left:0;
  right:0;
  bottom:0;
  z-index:70;
  background:rgba(10,12,15,.94);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-top:1px solid rgba(47,227,181,.28);
  padding-bottom:env(safe-area-inset-bottom);
  transition:transform .3s var(--ease);
}
.sticky-bar.is-hidden{transform:translateY(120%);}
.sticky-inner{
  display:flex;
  align-items:center;
  gap:18px;
  min-height:60px;
  padding-top:8px;
  padding-bottom:8px;
}
.sticky-text{
  flex:1;
  display:flex;
  align-items:center;
  gap:10px;
  margin:0;
  font-size:14px;
  color:var(--ink2);
  line-height:1.5;
}
.sticky-text i{color:var(--brand);font-size:13px;}
.sticky-close{
  display:none;
  align-items:center;
  justify-content:center;
  width:32px;
  height:32px;
  border-radius:8px;
  border:1px solid var(--line);
  background:transparent;
  color:var(--ink3);
  font-size:14px;
  cursor:pointer;
}
.sticky-close:hover{color:var(--ink1);}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--bg1);
  border-top:1px solid var(--line);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
}
.footer-brand p{
  margin:16px 0 0;
  font-size:14px;
  line-height:1.85;
  color:var(--ink2);
  max-width:340px;
}
.footer-col h4{
  font-size:14px;
  font-weight:700;
  color:var(--ink1);
  letter-spacing:.04em;
  margin:0 0 16px;
}
.footer-col ul{list-style:none;display:grid;gap:10px;}
.footer-col li{font-size:13.5px;color:var(--ink2);line-height:1.7;}
.footer-col a{
  font-size:13.5px;
  color:var(--ink2);
  text-decoration:none;
}
.footer-col a:hover{color:var(--brand);}
.qr-box{
  width:104px;
  height:104px;
  border-radius:12px;
  border:1px dashed var(--line-strong);
  background:rgba(255,255,255,.02);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:12px;
  color:var(--ink3);
  letter-spacing:.06em;
}
.qr-cap{
  font-size:12.5px;
  color:var(--ink3);
  margin:10px 0 0;
  line-height:1.7;
}
.footer-bottom{
  margin-top:48px;
  padding:22px 0 28px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  font-size:13px;
  color:var(--ink3);
}
.footer-bottom .links{display:flex;flex-wrap:wrap;gap:18px;}
.footer-bottom .links a{color:var(--ink3);text-decoration:none;}
.footer-bottom .links a:hover{color:var(--brand);}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .article-grid{grid-template-columns:minmax(0,1fr);}
  .article-aside{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:1024px){
  .container{padding:0 24px;}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
  .footer-col:last-child{grid-column:1 / -1;}
  .cta-inner{grid-template-columns:1fr;gap:32px;padding:38px;}
}
@media (max-width:960px){
  .main-nav,.nav-actions{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-wrap{min-height:58px;gap:14px;}
  .nav-link{height:auto;}
  .article-hero{padding:38px 0 34px;}
  .article-main{padding:44px 0 64px;}
  .sticky-close{display:inline-flex;}
  .sticky-text{font-size:13.5px;}
}
@media (max-width:768px){
  body{font-size:15.5px;}
  .article-head h1{font-size:clamp(23px,6vw,30px);line-height:1.4;}
  .article-body{font-size:16px;line-height:1.85;}
  .article-body h2{font-size:21px;}
  .article-body h3{font-size:18px;}
  .grid-3{grid-template-columns:minmax(0,1fr);}
  .article-aside{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .footer-brand{grid-column:1 / -1;}
  .footer-col:last-child{grid-column:auto;}
  .article-cover img{aspect-ratio:16/9;}
  .crumbs{margin-bottom:18px;}
  .back-link{margin-left:0;width:100%;}
  .sticky-text span.long{display:none;}
}
@media (max-width:560px){
  .container{padding:0 18px;}
  .cta-inner{padding:26px 22px;border-radius:var(--r-lg);}
  .related{padding-bottom:56px;}
  .cta-block{padding-bottom:64px;}
  .site-footer{padding-top:48px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{margin-top:36px;font-size:12.5px;}
  .sticky-inner{gap:12px;}
  .sticky-text{font-size:13px;}
  .sticky-bar .btn{height:38px;padding:0 14px;font-size:13px;}
  .article-foot{gap:8px;}
  .meta-row{font-size:12.5px;gap:10px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;scroll-behavior:auto !important;}
}

/* roulang page: category2 */
:root{
  --bg0:#08090B;
  --bg1:#0E1116;
  --bg2:#151A21;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --brand:#2FE3B5;
  --brand-d:#17B98F;
  --accent:#FF7A3D;
  --ink1:#EAF0F4;
  --ink2:#A6B1BC;
  --ink3:#6C7885;
  --ok:#35D07F;
  --warn:#FFC24B;
  --err:#FF4D6D;
  --r-btn:10px;
  --r-card:16px;
  --r-img:12px;
  --r-badge:6px;
  --shadow-card:0 0 0 1px var(--line), 0 24px 48px -32px rgba(0,0,0,.9);
  --shadow-hover:0 0 0 1px rgba(47,227,181,.35), 0 0 28px -10px rgba(47,227,181,.5);
  --container:1200px;
  --font: "PingFang SC","Noto Sans SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg0);
  color:var(--ink1);
  font-family:var(--font);
  font-size:16px;
  line-height:1.7;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-d);}
button{font:inherit;}
ul,ol{list-style:none;margin:0;padding:0;}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;font-weight:800;line-height:1.25;}
p{margin:0;}
::selection{background:rgba(47,227,181,.28);color:#fff;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:4px;}

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

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(8,9,11,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{box-shadow:0 0 24px rgba(0,0,0,.65);background:rgba(8,9,11,.94);}
.nav-wrap{display:flex;align-items:center;gap:28px;height:68px;}
.logo{display:inline-flex;align-items:center;gap:11px;flex:0 0 auto;color:var(--ink1);}
.logo:hover{color:var(--ink1);}
.logo-mark{
  width:34px;height:34px;border-radius:9px;
  background:linear-gradient(135deg,rgba(47,227,181,.22),rgba(47,227,181,.04));
  border:1px solid rgba(47,227,181,.35);
  display:inline-flex;align-items:center;justify-content:center;gap:3px;
  box-shadow:inset 0 0 12px rgba(47,227,181,.16);
}
.logo-mark span{display:block;width:3px;border-radius:2px;background:var(--brand);box-shadow:0 0 6px rgba(47,227,181,.8);}
.logo-mark span:nth-child(1){height:9px;opacity:.7;}
.logo-mark span:nth-child(2){height:17px;}
.logo-mark span:nth-child(3){height:7px;opacity:.5;}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-name{font-size:17px;font-weight:800;letter-spacing:-.01em;}
.logo-sub{font-size:10px;letter-spacing:.18em;color:var(--ink3);font-weight:600;}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:8px;}
.nav-link{
  position:relative;font-size:15px;color:var(--ink2);padding:6px 0;
  transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:50%;right:50%;bottom:-2px;height:2px;
  background:var(--brand);border-radius:2px;transition:left .25s ease,right .25s ease;
}
.nav-link:hover{color:var(--ink1);}
.nav-link:hover::after{left:0;right:0;}
.nav-link.active{color:var(--brand);text-shadow:0 0 14px rgba(47,227,181,.55);}
.nav-link.active::after{left:0;right:0;box-shadow:0 0 10px rgba(47,227,181,.75);}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;margin-left:auto;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--line);background:var(--bg1);color:var(--ink1);
  cursor:pointer;align-items:center;justify-content:center;font-size:16px;
  transition:border-color .2s ease,color .2s ease;
}
.nav-toggle:hover{border-color:rgba(47,227,181,.5);color:var(--brand);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:42px;padding:0 18px;border-radius:var(--r-btn);
  font-size:14px;font-weight:600;border:1px solid transparent;cursor:pointer;
  white-space:nowrap;transition:transform .15s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease,filter .2s ease;
}
.btn:active{transform:translateY(1px);filter:brightness(.96);}
.btn-primary{background:var(--accent);color:#1A0C04;box-shadow:0 10px 24px -14px rgba(255,122,61,.9);}
.btn-primary:hover{color:#1A0C04;filter:brightness(1.08);box-shadow:0 0 0 4px rgba(255,122,61,.18),0 10px 24px -14px rgba(255,122,61,.9);}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--ink2);}
.btn-ghost:hover{border-color:rgba(47,227,181,.5);color:var(--brand);}
.btn-brand{background:var(--brand);color:#04241B;box-shadow:0 10px 24px -16px rgba(47,227,181,.9);}
.btn-brand:hover{color:#04241B;filter:brightness(1.07);box-shadow:0 0 0 4px rgba(47,227,181,.16);}
.btn-lg{height:50px;padding:0 26px;font-size:15px;}
.btn-sm{height:36px;padding:0 14px;font-size:13px;}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:90;background:rgba(4,5,6,.72);
  backdrop-filter:blur(6px);opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;
}
.drawer.open{opacity:1;visibility:visible;}
.drawer-panel{
  position:absolute;top:0;right:0;width:min(86vw,330px);height:100%;
  background:var(--bg1);border-left:1px solid var(--line);
  padding:22px;display:flex;flex-direction:column;
  transform:translateX(100%);transition:transform .28s ease;overflow-y:auto;
}
.drawer.open .drawer-panel{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.drawer-close{
  width:36px;height:36px;border-radius:9px;border:1px solid var(--line);
  background:transparent;color:var(--ink2);cursor:pointer;
}
.drawer-close:hover{color:var(--brand);border-color:rgba(47,227,181,.5);}
.drawer-link{display:block;padding:13px 2px;border-bottom:1px solid var(--line);color:var(--ink2);font-size:15px;}
.drawer-link:hover{color:var(--brand);}
.drawer-link.active{color:var(--brand);font-weight:700;}
.drawer-cta{margin-top:auto;display:grid;gap:10px;padding-top:22px;}
.drawer-cta .btn{width:100%;}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  border-bottom:1px solid var(--line);
  background-image:linear-gradient(112deg,rgba(8,9,11,.97) 0%,rgba(8,9,11,.88) 48%,rgba(8,9,11,.62) 100%),url(/assets/images/backpic/back-2.webp);
  background-size:cover;background-position:center;
  padding:84px 0 76px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(circle at 22% 30%,#000 0%,transparent 72%);
  -webkit-mask-image:radial-gradient(circle at 22% 30%,#000 0%,transparent 72%);
  opacity:.55;
}
.page-hero::after{
  content:"";position:absolute;top:-160px;right:-120px;width:520px;height:520px;pointer-events:none;
  background:radial-gradient(circle,rgba(47,227,181,.16),transparent 66%);
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink3);margin-bottom:20px;}
.breadcrumb a{color:var(--ink3);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:rgba(255,255,255,.2);}
.breadcrumb .current{color:var(--brand);}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 12px;border-radius:var(--r-badge);
  background:rgba(47,227,181,.1);border:1px solid rgba(47,227,181,.28);
  color:var(--brand);font-size:12px;letter-spacing:.08em;font-weight:600;
  margin-bottom:20px;
}
.hero-tag i{font-size:11px;}
.page-hero h1{
  font-size:clamp(28px,3.7vw,44px);line-height:1.18;letter-spacing:-.015em;max-width:820px;
}
.page-hero h1 em{font-style:normal;color:var(--brand);}
.hero-lead{margin-top:20px;max-width:660px;font-size:16px;line-height:1.9;color:var(--ink2);}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 24px;margin-top:30px;}
.hero-points span{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--ink3);}
.hero-points i{color:var(--brand);font-size:12px;}

/* ---------- sections ---------- */
.section{padding:96px 0;}
.section-alt{background:var(--bg1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:48px;}
.section-head .eyebrow{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.16em;color:var(--brand);
  margin-bottom:14px;
}
.section-head h2{font-size:clamp(24px,2.6vw,34px);line-height:1.3;}
.section-head p{margin-top:14px;font-size:15px;line-height:1.9;color:var(--ink2);}

/* ---------- intro cards ---------- */
.intro-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.intro-card{
  position:relative;background:var(--bg2);border-radius:var(--r-card);
  padding:28px 24px 26px;box-shadow:var(--shadow-card);
  transition:transform .22s ease,box-shadow .22s ease;
}
.intro-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.intro-card .ic-icon{
  width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  background:rgba(47,227,181,.1);border:1px solid rgba(47,227,181,.26);color:var(--brand);
  font-size:15px;margin-bottom:18px;
}
.intro-card h3{font-size:18px;margin-bottom:10px;}
.intro-card p{font-size:14px;line-height:1.85;color:var(--ink2);}

/* ---------- tech chips ---------- */
.chip-block{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.chip{
  display:inline-flex;align-items:center;gap:8px;height:38px;padding:0 16px;border-radius:var(--r-badge);
  background:var(--bg2);border:1px solid var(--line);color:var(--ink2);font-size:13.5px;
  transition:border-color .2s ease,color .2s ease,transform .2s ease;
}
.chip i{color:var(--brand);font-size:12px;}
.chip:hover{border-color:rgba(47,227,181,.4);color:var(--ink1);transform:translateY(-1px);}

/* ---------- flow cards (horizontal) ---------- */
.flow-list{display:grid;gap:22px;}
.flow-card{
  display:grid;grid-template-columns:308px 1fr;gap:32px;align-items:center;
  background:var(--bg2);border-radius:var(--r-card);padding:20px;
  box-shadow:var(--shadow-card);
  transition:transform .22s ease,box-shadow .22s ease;
}
.flow-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.flow-media{
  border-radius:var(--r-img);overflow:hidden;aspect-ratio:16/10;background:var(--bg1);
  border:1px solid var(--line);
}
.flow-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.flow-card:hover .flow-media img{transform:scale(1.03);}
.flow-body{padding:6px 8px 6px 0;}
.flow-body .badge{
  display:inline-block;padding:3px 10px;border-radius:var(--r-badge);
  background:rgba(47,227,181,.1);color:var(--brand);font-size:12px;font-weight:600;letter-spacing:.06em;
  margin-bottom:12px;
}
.flow-body h3{font-size:20px;line-height:1.35;margin-bottom:10px;}
.flow-body p{font-size:14.5px;line-height:1.85;color:var(--ink2);}
.flow-points{display:flex;flex-wrap:wrap;gap:8px 20px;margin-top:16px;}
.flow-points li{display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--ink3);}
.flow-points i{color:var(--brand);font-size:11px;}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.step{
  position:relative;background:var(--bg2);border-radius:var(--r-card);padding:26px 22px;
  box-shadow:var(--shadow-card);transition:transform .22s ease,box-shadow .22s ease;
}
.step:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.step .num{display:block;font-size:13px;font-weight:800;letter-spacing:.16em;color:var(--brand);font-variant-numeric:tabular-nums;}
.step h3{font-size:17px;margin:12px 0 10px;}
.step p{font-size:13.5px;line-height:1.85;color:var(--ink2);}

/* ---------- stats ---------- */
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  padding:38px 34px;border-radius:20px;
  background:linear-gradient(120deg,rgba(47,227,181,.08),rgba(47,227,181,.01) 60%),var(--bg2);
  box-shadow:var(--shadow-card);
}
.stat{border-left:2px solid rgba(47,227,181,.42);padding-left:18px;}
.stat strong{display:block;font-size:clamp(24px,2.6vw,32px);font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums;letter-spacing:-.02em;line-height:1.1;}
.stat span{display:block;margin-top:8px;font-size:13.5px;color:var(--ink2);}

/* ---------- faq ---------- */
.faq-wrap{max-width:900px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 0;font-size:17px;font-weight:700;color:var(--ink1);transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand);}
.fi{
  position:relative;flex:0 0 auto;width:24px;height:24px;border-radius:6px;
  border:1px solid var(--line-strong);background:var(--bg2);
}
.fi::before,.fi::after{
  content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  background:var(--brand);border-radius:2px;transition:transform .2s ease,opacity .2s ease;
}
.fi::before{width:10px;height:2px;}
.fi::after{width:2px;height:10px;}
.faq-item[open] .fi::after{opacity:0;transform:translate(-50%,-50%) rotate(90deg);}
.faq-answer{
  margin:0 0 22px;padding-left:16px;border-left:2px solid rgba(47,227,181,.5);
  font-size:15px;line-height:1.88;color:var(--ink2);
}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:20px;
  padding:52px 44px;
  background:linear-gradient(115deg,rgba(47,227,181,.14),rgba(255,122,61,.10) 88%),var(--bg2);
  border:1px solid rgba(47,227,181,.24);
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
}
.cta-band::after{
  content:"";position:absolute;right:-100px;bottom:-140px;width:380px;height:380px;
  background:radial-gradient(circle,rgba(255,122,61,.18),transparent 66%);pointer-events:none;
}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);position:relative;z-index:2;}
.cta-band p{margin-top:12px;font-size:15px;color:var(--ink2);max-width:560px;position:relative;z-index:2;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:2;}

/* ---------- footer ---------- */
.site-footer{background:#0A0C0F;border-top:1px solid var(--line);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;}
.footer-brand p{margin-top:18px;font-size:14px;line-height:1.9;color:var(--ink3);max-width:340px;}
.footer-col h4{font-size:14px;margin:0 0 16px;color:var(--ink1);letter-spacing:.02em;}
.footer-col ul li{font-size:14px;color:var(--ink3);margin-bottom:11px;line-height:1.7;}
.footer-col a{color:var(--ink3);}
.footer-col a:hover{color:var(--brand);}
.qr-box{
  width:104px;height:104px;border-radius:12px;border:1px dashed rgba(255,255,255,.18);
  background:var(--bg1);display:flex;align-items:center;justify-content:center;
  color:var(--ink3);font-size:12px;letter-spacing:.06em;
}
.qr-cap{margin-top:10px;font-size:12px;color:var(--ink3);}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0 30px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--ink3);
}
.footer-bottom .links{display:flex;gap:20px;flex-wrap:wrap;}
.footer-bottom .links a{color:var(--ink3);}
.footer-bottom .links a:hover{color:var(--brand);}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  .container{padding:0 26px;}
  .nav-wrap{gap:20px;}
  .main-nav{gap:20px;}
  .flow-card{grid-template-columns:260px 1fr;gap:26px;}
  .section{padding:82px 0;}
}
@media (max-width:1024px){
  .main-nav{display:none;}
  .nav-actions{display:none;}
  .nav-toggle{display:inline-flex;}
  .intro-grid{grid-template-columns:1fr 1fr;}
  .steps{grid-template-columns:1fr 1fr;}
  .stats{grid-template-columns:1fr 1fr;gap:26px 24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
}
@media (max-width:860px){
  .page-hero{padding:64px 0 58px;}
  .flow-card{grid-template-columns:1fr;gap:20px;padding:18px;}
  .flow-media{aspect-ratio:16/9;}
  .flow-body{padding:0 4px 6px;}
  .cta-band{padding:38px 26px;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .section{padding:64px 0;}
  .section-head{margin-bottom:32px;}
  .intro-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .stats{grid-template-columns:1fr;padding:28px 22px;}
  .stat{border-left:2px solid rgba(47,227,181,.42);}
  .page-hero h1{font-size:clamp(26px,6.4vw,32px);}
  .hero-actions .btn{flex:1 1 100%;}
  .faq-item summary{font-size:16px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:34px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .logo-name{font-size:15px;}
  .logo-sub{font-size:9px;letter-spacing:.14em;}
  .hero-points{gap:8px 16px;}
  .chip{height:34px;padding:0 12px;font-size:12.5px;}
  .cta-actions .btn{width:100%;}
  .btn-lg{height:46px;padding:0 20px;font-size:14px;}
}