/* roulang page: index */
:root{
  --ink:#0A0B10;
  --ink-2:#12141C;
  --paper:#F6F4F1;
  --line:rgba(255,255,255,.08);
  --brand-a:#6D4AFF;
  --brand-b:#FF4D9D;
  --neon:#3BE8C6;
  --text-hi:#F2F0EE;
  --text-lo:#A6A6B4;
  --ink-text:#1B1B22;
  --grad:linear-gradient(115deg,#6D4AFF,#FF4D9D);
  --r-lg:24px;
  --r-md:18px;
  --r-sm:10px;
  --r-input:14px;
  --shadow-dark:inset 0 1px 0 rgba(255,255,255,.06),0 24px 60px -30px rgba(109,74,255,.45);
  --shadow-light:0 10px 30px -18px rgba(27,27,34,.18);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ink);
  color:var(--text-hi);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",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;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
a:focus-visible,button:focus-visible,summary:focus-visible,.btn:focus-visible{
  outline:2px solid var(--neon);
  outline-offset:3px;
  border-radius:6px;
}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:768px){.wrap{padding:0 32px;}}
@media (min-width:1280px){.wrap{padding:0;}}
.section{padding:64px 0;}
@media (min-width:1024px){.section{padding:96px 0;}}
.sec-light{background:var(--paper);color:var(--ink-text);}
.sec-light p,.sec-light li{color:#2A2A32;}
.sec-dark{background:var(--ink);color:var(--text-hi);}
.sec-white{background:#FFFFFF;color:var(--ink-text);border-top:1px solid #EDE8E3;border-bottom:1px solid #EDE8E3;}
.sec-white p{color:#2A2A32;}

/* ---------- navigation ---------- */
.site-head{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(10,11,16,.93);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
}
.site-head::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:1px;
  background:linear-gradient(90deg,var(--brand-a),var(--brand-b));
  opacity:.55;
}
.nav-inner{
  height:60px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}
@media (min-width:1024px){.nav-inner{height:68px;}}
.brand{display:flex;align-items:center;gap:11px;flex:none;}
.brand-mark{
  width:38px;height:38px;flex:none;
  border-radius:12px;
  background:var(--grad);
  display:grid;place-items:center;
  font-weight:800;font-size:14px;color:#0A0B10;
  letter-spacing:.02em;
  box-shadow:0 10px 24px -12px rgba(109,74,255,.9);
}
.brand-text{font-size:17px;font-weight:800;color:var(--text-hi);letter-spacing:-.01em;}
.brand-text small{display:block;font-size:11px;font-weight:500;color:var(--text-lo);letter-spacing:.12em;line-height:1.4;}
.nav-links{display:none;}
@media (min-width:1024px){
  .nav-links{display:flex;align-items:center;gap:4px;}
}
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--text-lo);
  padding:9px 14px;
  border-radius:10px;
  transition:color .2s ease,background .2s ease,text-shadow .2s ease;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:3px;
  height:2px;
  border-radius:2px;
  background:var(--grad);
  opacity:0;
  transition:opacity .2s ease;
}
.nav-link:hover{color:var(--text-hi);}
.nav-link:hover::after{opacity:.75;}
.nav-link.is-active{
  color:var(--text-hi);
  background:rgba(255,255,255,.12);
  text-shadow:0 0 12px rgba(59,232,198,.55);
}
.nav-link.is-active::after{opacity:1;}
.nav-right{display:flex;align-items:center;gap:12px;}
.nav-cta{display:none;}
@media (min-width:1024px){.nav-cta{display:inline-flex;}}
.nav-toggle{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:42px;height:42px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.15);
  background:rgba(255,255,255,.04);
  color:var(--text-hi);
  cursor:pointer;
}
@media (min-width:1024px){.nav-toggle{display:none;}}
.drawer{
  position:fixed;
  left:0;right:0;top:60px;
  z-index:55;
  background:var(--ink-2);
  border-bottom:1px solid var(--line);
  padding:14px 20px 22px;
  transform:translateY(-14px);
  opacity:0;
  pointer-events:none;
  transition:transform .2s ease,opacity .2s ease;
}
.drawer.open{transform:translateY(0);opacity:1;pointer-events:auto;}
.drawer a{
  display:block;
  padding:12px 14px;
  border-radius:8px;
  font-size:15px;
  color:var(--text-lo);
}
.drawer a:hover{background:rgba(255,255,255,.07);color:var(--text-hi);}
.drawer a.is-active{background:rgba(255,255,255,.1);color:var(--text-hi);}
.drawer .drawer-cta{margin-top:12px;}
@media (min-width:1024px){.drawer{display:none;}}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:999px;
  font-weight:600;
  font-size:15px;
  padding:12px 26px;
  border:1px solid transparent;
  cursor:pointer;
  white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease,border-color .2s ease,color .2s ease,background .2s ease;
}
.btn-primary{
  background:var(--grad);
  color:#0A0B10;
  box-shadow:0 12px 30px -14px rgba(109,74,255,.85);
}
.btn-primary:hover{filter:brightness(1.06);box-shadow:0 18px 42px -16px rgba(255,77,157,.75);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  border-color:rgba(242,240,238,.28);
  color:var(--text-hi);
  background:transparent;
}
.btn-ghost:hover{border-color:var(--neon);color:var(--neon);}
.btn-dark{
  background:#0A0B10;
  color:#F2F0EE;
}
.btn-dark:hover{background:#1B1B22;}
.btn-outline-light{
  background:#FFFFFF;
  border-color:#E7E3DE;
  color:var(--ink-text);
}
.btn-outline-light:hover{border-color:var(--brand-a);color:var(--brand-a);}
.btn-block{width:100%;}

/* ---------- hero ---------- */
.hero{
  position:relative;
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.hero-inner{padding:64px 0 56px;}
@media (min-width:1024px){.hero-inner{padding:112px 0 96px;}}
.hero-grid{display:grid;gap:44px;}
@media (min-width:1024px){.hero-grid{grid-template-columns:7fr 5fr;gap:56px;align-items:center;}}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.08em;
  padding:6px 12px;
  border-radius:10px;
  border:1px solid rgba(59,232,198,.35);
  background:rgba(59,232,198,.1);
  color:var(--neon);
}
.eyebrow.on-light{
  border-color:rgba(109,74,255,.3);
  background:rgba(109,74,255,.08);
  color:#5A3DE0;
}
.hero h1{
  font-size:clamp(30px,4.6vw,54px);
  line-height:1.16;
  margin:22px 0 0;
  color:var(--text-hi);
}
.grad-text{
  background:var(--grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-sub{
  margin-top:20px;
  font-size:16px;
  line-height:1.9;
  color:var(--text-lo);
  max-width:620px;
}
.hero-sub strong{color:var(--text-hi);font-weight:600;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-note{
  margin-top:22px;
  font-size:13px;
  color:var(--text-lo);
  display:flex;
  flex-wrap:wrap;
  gap:8px 20px;
}
.hero-note span{display:inline-flex;align-items:center;gap:7px;}
.dot-neon{
  width:7px;height:7px;border-radius:50%;
  background:var(--neon);
  box-shadow:0 0 10px rgba(59,232,198,.85);
  flex:none;
}
.hero-badges{display:flex;flex-direction:column;gap:16px;align-items:flex-start;}
.hero-badges > *:nth-child(2){margin-left:32px;}
.hero-badges > *:nth-child(3){margin-left:64px;}
@media (max-width:520px){
  .hero-badges > *:nth-child(2),.hero-badges > *:nth-child(3){margin-left:0;}
}
.stat-badge{
  border:1px solid rgba(255,255,255,.2);
  background:rgba(59,232,198,.14);
  border-radius:var(--r-md);
  padding:16px 22px;
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.07);
  min-width:220px;
}
.stat-badge .num{
  font-size:30px;
  font-weight:800;
  color:var(--neon);
  line-height:1.2;
  font-variant-numeric:tabular-nums;
}
.stat-badge .lbl{
  font-size:13px;
  color:var(--text-lo);
  margin-top:4px;
}

/* ---------- section head ---------- */
.sec-head{margin-bottom:40px;max-width:760px;}
@media (min-width:1024px){.sec-head{margin-bottom:56px;}}
.sec-title{
  font-size:clamp(24px,3vw,36px);
  line-height:1.25;
  margin-top:16px;
}
.sec-desc{margin-top:14px;font-size:16px;line-height:1.85;color:var(--text-lo);}
.sec-light .sec-desc,.sec-white .sec-desc{color:#5A5A66;}

/* ---------- compare table ---------- */
.cmp-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;padding-bottom:6px;}
.cmp{
  min-width:720px;
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  background:#FFFFFF;
  border:1px solid #E7E3DE;
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--shadow-light);
}
.cmp-row{display:contents;}
.cmp-cell{
  display:flex;
  align-items:center;
  gap:10px;
  min-height:56px;
  padding:14px 22px;
  font-size:15px;
  border-bottom:1px solid #F0EBE6;
  color:#2A2A32;
}
.cmp-row-alt .cmp-cell{background:#FAF8F6;}
.cmp-feature{font-weight:600;color:var(--ink-text);}
.cmp-head .cmp-cell{
  background:#12141C;
  color:var(--text-hi);
  font-weight:700;
  min-height:66px;
  border-bottom:none;
  font-size:15px;
}
.cmp-head .cmp-tier-top{
  background:linear-gradient(115deg,#6D4AFF,#FF4D9D);
  color:#0A0B10;
}
.cmp-tier-top{box-shadow:inset 1px 0 0 rgba(109,74,255,.45),inset -1px 0 0 rgba(109,74,255,.45);}
.tier-tag{
  font-size:11px;
  font-weight:700;
  padding:2px 8px;
  border-radius:8px;
  background:rgba(10,11,16,.28);
  color:#0A0B10;
  margin-left:6px;
}
.cmp-yes{color:#0E9F86;font-weight:700;}
.cmp-no{color:#B7B2AC;opacity:.75;}

/* ---------- tier cards ---------- */
.tier-grid{display:grid;gap:22px;}
@media (min-width:1024px){
  .tier-grid{grid-template-columns:repeat(3,1fr);gap:24px;}
  .tier-grid > *:nth-child(2){margin-top:24px;}
  .tier-grid > *:nth-child(3){margin-top:48px;}
}
.tier-card{
  display:flex;
  gap:18px;
  background:var(--ink-2);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:28px 26px;
  box-shadow:var(--shadow-dark);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  height:100%;
}
.tier-card:hover{
  transform:translateY(-4px);
  border-color:rgba(109,74,255,.55);
  box-shadow:0 32px 70px -34px rgba(109,74,255,.6);
}
.tier-icon{
  width:44px;height:44px;flex:none;
  border-radius:999px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(109,74,255,.28),rgba(255,77,157,.2));
  border:1px solid rgba(109,74,255,.6);
  font-size:15px;
  font-weight:800;
  color:var(--text-hi);
}
.tier-card h3{font-size:20px;color:var(--text-hi);}
.tier-card ul{margin-top:14px;display:flex;flex-direction:column;gap:9px;}
.tier-card li{
  font-size:14px;
  color:var(--text-lo);
  display:flex;
  gap:9px;
  line-height:1.7;
}
.tier-card li::before{
  content:"";
  width:6px;height:6px;
  border-radius:50%;
  margin-top:9px;
  flex:none;
  background:var(--neon);
  box-shadow:0 0 8px rgba(59,232,198,.7);
}

/* ---------- preview cards ---------- */
.preview-grid{display:grid;gap:22px;}
@media (min-width:768px){.preview-grid{grid-template-columns:repeat(3,1fr);}}
.pcard{
  display:flex;
  flex-direction:column;
  background:#FFFFFF;
  border:1px solid #E7E3DE;
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--shadow-light);
  transition:transform .25s ease,box-shadow .25s ease;
  height:100%;
}
.pcard:hover{transform:translateY(-4px);box-shadow:0 20px 44px -22px rgba(27,27,34,.28);}
.pcard-img{
  aspect-ratio:16/10;
  overflow:hidden;
  background:var(--grad);
}
@media (min-width:768px){.pcard-img{aspect-ratio:4/3;}}
.pcard-img img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.pcard:hover .pcard-img img{transform:scale(1.04);}
.pcard-body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:12px;flex:1;}
.tag{
  display:inline-flex;
  align-items:center;
  font-size:12px;
  font-weight:600;
  padding:4px 10px;
  border-radius:10px;
  border:1px solid rgba(109,74,255,.35);
  background:rgba(109,74,255,.08);
  color:#5A3DE0;
  align-self:flex-start;
}
.tag.on-dark{
  border-color:rgba(59,232,198,.35);
  background:rgba(59,232,198,.1);
  color:var(--neon);
}
.pcard h3{font-size:19px;line-height:1.45;color:var(--ink-text);transition:color .2s ease;}
.pcard:hover h3{color:var(--brand-a);}
.pcard p{font-size:14px;line-height:1.8;color:#6B6B78;}
.pcard .meta{
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid #F0EBE6;
  font-size:13px;
  color:#8A8A96;
  display:flex;
  justify-content:space-between;
  gap:12px;
}
.clamp2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.clamp3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}

/* ---------- cms list ---------- */
.cms-list{display:flex;flex-direction:column;gap:24px;min-height:200px;}
.feat-card{
  display:grid;
  background:#FFFFFF;
  border:1px solid #E7E3DE;
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--shadow-light);
  transition:transform .25s ease,box-shadow .25s ease;
}
.feat-card:hover{transform:translateY(-3px);box-shadow:0 22px 48px -24px rgba(27,27,34,.28);}
@media (min-width:768px){.feat-card{grid-template-columns:5fr 7fr;}}
.feat-img{aspect-ratio:16/10;overflow:hidden;background:var(--grad);}
@media (min-width:768px){.feat-img{aspect-ratio:auto;height:100%;}}
.feat-img img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.feat-card:hover .feat-img img{transform:scale(1.03);}
.feat-body{padding:26px 28px 28px;display:flex;flex-direction:column;gap:14px;}
.feat-body h3{font-size:22px;line-height:1.45;color:var(--ink-text);}
.feat-card:hover .feat-body h3{color:var(--brand-a);}
.feat-body p{font-size:15px;line-height:1.8;color:#6B6B78;}
.mini-grid{display:grid;gap:22px;}
@media (min-width:768px){.mini-grid{grid-template-columns:repeat(2,1fr);}}
.cms-empty{
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:16px;
  text-align:center;
  padding:64px 24px;
  background:#FFFFFF;
  border:1px dashed #DDD7D1;
  border-radius:var(--r-lg);
}
.cms-empty .empty-icon{
  width:56px;height:56px;
  border-radius:999px;
  display:grid;place-items:center;
  background:rgba(109,74,255,.1);
  border:1px solid rgba(109,74,255,.3);
  color:var(--brand-a);
  font-size:22px;
  font-weight:800;
}
.cms-empty p{color:#5A5A66;font-size:15px;}

/* ---------- stats ---------- */
.stats-grid{display:grid;gap:20px;}
@media (min-width:640px){.stats-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.stats-grid{grid-template-columns:repeat(4,1fr);}}
.stat-card{
  background:var(--ink-2);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:26px 24px;
  transition:border-color .25s ease,transform .25s ease;
}
.stat-card:hover{border-color:rgba(59,232,198,.4);transform:translateY(-3px);}
.stat-card .value{
  font-size:34px;
  font-weight:800;
  line-height:1.15;
  color:var(--neon);
  font-variant-numeric:tabular-nums;
}
.stat-card .unit{font-size:15px;font-weight:600;margin-left:3px;color:var(--text-hi);}
.stat-card .label{margin-top:8px;font-size:14px;color:var(--text-lo);line-height:1.7;}

/* ---------- faq ---------- */
.faq-wrap{max-width:820px;margin:0 auto;}
.faq-item{
  position:relative;
  background:#FFFFFF;
  border:1px solid #E7E3DE;
  border-radius:16px;
  margin-bottom:14px;
  overflow:hidden;
  transition:box-shadow .25s ease,border-color .25s ease;
}
.faq-item[open]{box-shadow:var(--shadow-light);border-color:#DCD5CF;}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:20px 60px 20px 24px;
  font-size:17px;
  font-weight:600;
  color:var(--ink-text);
  position:relative;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  position:absolute;
  right:24px;top:50%;
  transform:translateY(-50%);
  font-size:22px;
  font-weight:400;
  color:#5A3DE0;
  transition:transform .25s ease;
  line-height:1;
}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg);}
.faq-item::before{
  content:"";
  position:absolute;
  left:0;top:0;bottom:0;
  width:3px;
  background:var(--grad);
  opacity:0;
  transition:opacity .25s ease;
}
.faq-item[open]::before{opacity:1;}
.faq-body{
  padding:0 24px 22px;
  font-size:15px;
  line-height:1.8;
  color:#4A4A55;
}

/* ---------- cta + form ---------- */
.cta-grid{display:grid;gap:40px;}
@media (min-width:1024px){.cta-grid{grid-template-columns:1fr 1fr;gap:56px;align-items:start;}}
.cta-points{display:flex;flex-direction:column;gap:12px;margin-top:24px;}
.cta-points li{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:15px;
  color:var(--text-lo);
}
.form-card{
  background:var(--ink-2);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:30px 26px 28px;
  box-shadow:var(--shadow-dark);
}
@media (min-width:768px){.form-card{padding:34px 34px 32px;}}
.form-card h3{font-size:20px;color:var(--text-hi);margin-bottom:6px;}
.form-card .form-tip{font-size:13px;color:var(--text-lo);margin-bottom:22px;}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:16px;}
.field label{font-size:14px;color:var(--text-lo);}
.field input,.field select,.field textarea{
  width:100%;
  border-radius:var(--r-input);
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.16);
  padding:12px 16px;
  font-size:15px;
  color:var(--text-hi);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field input::placeholder,.field textarea::placeholder{color:rgba(166,166,180,.75);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:var(--brand-a);
  background:rgba(255,255,255,.09);
  box-shadow:0 0 0 4px rgba(109,74,255,.18);
}
.field select option{background:#12141C;color:#F2F0EE;}
.field textarea{min-height:96px;resize:vertical;}
.form-note{margin-top:14px;font-size:12px;color:var(--text-lo);text-align:center;}

/* ---------- footer ---------- */
.site-foot{
  background:var(--ink);
  border-top:1px solid var(--line);
  padding:64px 0 0;
}
.foot-grid{display:grid;gap:36px;}
@media (min-width:768px){.foot-grid{grid-template-columns:1.7fr 1fr 1fr;}}
.foot-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px;}
.foot-desc{font-size:14px;line-height:1.9;color:var(--text-lo);max-width:400px;}
.foot-title{font-size:14px;font-weight:700;color:var(--text-hi);margin-bottom:16px;}
.foot-list{display:flex;flex-direction:column;gap:11px;}
.foot-link{font-size:15px;color:var(--text-lo);}
.foot-link:hover{color:var(--neon);}
.foot-info{font-size:14px;color:var(--text-lo);line-height:1.9;}
.foot-bottom{
  margin-top:48px;
  border-top:1px solid var(--line);
  padding:22px 0 28px;
  font-size:13px;
  color:var(--text-lo);
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  align-items:center;
}

/* roulang page: article */
:root{
  --ink:#0A0B10;
  --ink-2:#12141C;
  --paper:#F6F4F1;
  --line:rgba(255,255,255,.08);
  --hair:#E7E3DE;
  --brand-a:#6D4AFF;
  --brand-b:#FF4D9D;
  --neon:#3BE8C6;
  --text-hi:#F2F0EE;
  --text-lo:#A6A6B4;
  --ink-text:#1B1B22;
  --body-text:#2A2A32;
  --muted:#6B6B78;
  --grad:linear-gradient(115deg,var(--brand-a),var(--brand-b));
  --r-lg:24px;
  --r-md:18px;
  --r-sm:14px;
  --r-xs:10px;
  --shadow-dark:0 24px 60px -30px rgba(109,74,255,.45);
  --shadow-light:0 10px 30px -18px rgba(27,27,34,.18);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--body-text);
  background:var(--paper);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.28}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand-a);outline-offset:3px;border-radius:6px}
.wrap{max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.wrap{padding:0 32px}}
@media (min-width:1280px){.wrap{padding:0}}

/* ---------- 顶部导航 ---------- */
.site-head{
  position:sticky;top:0;z-index:80;
  background:rgba(10,11,16,.94);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.site-head::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:var(--grad);opacity:.55;
}
.head-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:68px}
.brand{display:flex;align-items:center;gap:10px;color:var(--text-hi);flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:var(--r-xs);background:var(--grad);
  display:grid;place-items:center;font-size:13px;font-weight:800;color:#0A0B10;
  letter-spacing:.02em;
}
.brand-text{font-size:17px;font-weight:800;letter-spacing:.01em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-link{
  position:relative;padding:9px 14px;border-radius:var(--r-xs);
  font-size:15px;color:var(--text-lo);transition:color .2s,background .2s;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;
  background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
}
.nav-link:hover{color:var(--text-hi);background:rgba(255,255,255,.05)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{
  color:var(--text-hi);background:rgba(59,232,198,.12);
  text-shadow:0 0 12px rgba(59,232,198,.55);
}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);
  border-radius:12px;flex-direction:column;align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text-hi);margin:2.5px 0;transition:.2s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
@media (max-width:900px){
  .head-inner{height:60px}
  .nav-toggle{display:flex}
  .nav-links{
    position:fixed;top:60px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:4px;
    padding:12px 16px 20px;background:var(--ink-2);
    border-bottom:1px solid var(--line);
    transform:translateY(-12px);opacity:0;visibility:hidden;
    transition:transform .2s ease,opacity .2s ease,visibility .2s;
    max-height:calc(100vh - 60px);overflow-y:auto;
  }
  .nav-links.is-open{transform:translateY(0);opacity:1;visibility:visible}
  .nav-link{padding:12px 14px;border-radius:8px;font-size:15.5px}
  .nav-link::after{left:14px;right:auto;width:22px;bottom:8px}
}

/* ---------- 面包屑 ---------- */
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:12px;color:var(--text-lo);letter-spacing:.02em;
}
.crumbs a{color:var(--text-lo);transition:color .2s}
.crumbs a:hover{color:var(--neon)}
.crumbs .sep{opacity:.45}
.crumbs .now{color:var(--text-hi)}

/* ---------- 文章头 ---------- */
.post-hero{
  position:relative;color:var(--text-hi);
  background-color:var(--ink);
  background-image:linear-gradient(rgba(10,11,16,.88),rgba(10,11,16,.96)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  padding:34px 0 56px;
  overflow:hidden;
}
.post-hero::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;background:var(--grad);opacity:.5;
}
.post-hero .crumbs{margin-bottom:26px}
.post-hero h1{
  font-size:clamp(26px,3.6vw,42px);
  line-height:1.28;
  max-width:900px;
  letter-spacing:-.015em;
}
.post-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px 18px;
  margin-top:22px;font-size:13.5px;color:var(--text-lo);
}
.meta-tag{
  display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:var(--r-xs);
  border:1px solid rgba(59,232,198,.45);
  background:rgba(59,232,198,.12);
  color:var(--neon);font-size:12px;letter-spacing:.04em;
}
.meta-item{display:inline-flex;align-items:center;gap:7px}
.meta-item i{width:6px;height:6px;border-radius:50%;background:var(--grad);display:inline-block}
@media (max-width:640px){
  .post-hero{padding:26px 0 42px}
  .post-meta{gap:10px 14px;font-size:13px}
  .post-meta .hide-sm{display:none}
}

/* ---------- 阅读区 ---------- */
.read-area{padding:52px 0 8px}
@media (min-width:1024px){.read-area{padding:72px 0 12px}}
.post-shell{
  background:#FFFFFF;border:1px solid var(--hair);border-radius:var(--r-lg);
  padding:28px 20px;box-shadow:var(--shadow-light);
}
@media (min-width:768px){.post-shell{padding:48px 56px}}
.post-body{max-width:760px;margin:0 auto;font-size:16.5px;line-height:1.9;color:var(--body-text);overflow-wrap:anywhere}
.post-body > * + *{margin-top:1.4em}
.post-body h2{
  position:relative;padding-left:16px;font-size:clamp(21px,2.4vw,25px);
  color:var(--ink-text);margin-top:40px;
}
.post-body h2::before{
  content:"";position:absolute;left:0;top:.26em;width:4px;height:1em;border-radius:3px;background:var(--grad);
}
.post-body h3{font-size:20px;color:var(--ink-text);margin-top:32px}
.post-body p{line-height:1.9}
.post-body strong{color:var(--ink-text);font-weight:700}
.post-body a{color:var(--brand-a);border-bottom:1px solid rgba(109,74,255,.35);transition:color .2s}
.post-body a:hover{color:var(--brand-b);border-bottom-color:rgba(255,77,157,.5)}
.post-body ul,.post-body ol{padding-left:0}
.post-body ul li{position:relative;padding-left:20px}
.post-body ul li::before{
  content:"";position:absolute;left:2px;top:.78em;width:7px;height:7px;border-radius:50%;background:var(--grad);
}
.post-body ol{counter-reset:olist}
.post-body ol li{position:relative;padding-left:26px}
.post-body ol li::before{
  counter-increment:olist;content:counter(olist);
  position:absolute;left:0;top:.35em;width:18px;height:18px;border-radius:6px;
  display:grid;place-items:center;font-size:11px;font-weight:700;color:#fff;background:var(--grad);
}
.post-body li + li{margin-top:.55em}
.post-body blockquote{
  position:relative;margin:1.7em 0;padding:16px 22px;background:#FAF8F6;
  border-radius:0 var(--r-sm) var(--r-sm) 0;color:#3A3A44;
}
.post-body blockquote::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:4px;border-radius:4px;background:var(--grad);
}
.post-body img{border-radius:16px;margin:0 auto;height:auto}
.post-body figure{margin:1.8em 0}
.post-body figcaption{margin-top:10px;text-align:center;font-size:14px;color:var(--muted)}
.post-body pre{
  overflow-x:auto;background:#0F1016;color:#E8E6F0;padding:18px 20px;
  border-radius:var(--r-sm);font-size:14px;line-height:1.7;
}
.post-body code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.94em}
.post-body p code,.post-body li code{background:#F1EEEA;padding:2px 6px;border-radius:6px;color:#4A3ACB}
.post-body table{
  display:block;overflow-x:auto;max-width:100%;border-collapse:collapse;font-size:15px;
}
.post-body th,.post-body td{border:1px solid var(--hair);padding:10px 14px;text-align:left;white-space:nowrap}
.post-body th{background:#FAF8F6;font-weight:700;color:var(--ink-text)}
.post-body hr{border:0;height:1px;background:var(--hair);margin:2em 0}

.empty-post{text-align:center;padding:40px 10px 48px}
.empty-post .eico{
  width:64px;height:64px;margin:0 auto 18px;border-radius:20px;
  display:grid;place-items:center;font-size:26px;font-weight:800;color:#fff;background:var(--grad);
}
.empty-post h2{font-size:22px;color:var(--ink-text)}
.empty-post p{margin-top:10px;color:var(--muted);font-size:15px}
.empty-post .eact{margin-top:22px;display:flex;justify-content:center;gap:12px;flex-wrap:wrap}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;border-radius:999px;font-size:15px;font-weight:600;
  transition:transform .2s,box-shadow .2s,background .2s,color .2s,border-color .2s;
}
.btn-grad{background:var(--grad);color:#0A0B10;box-shadow:var(--shadow-dark)}
.btn-grad:hover{filter:brightness(1.06);box-shadow:0 28px 64px -28px rgba(109,74,255,.6)}
.btn-grad:active{transform:translateY(1px)}
.btn-ghost{border:1px solid rgba(255,255,255,.28);color:var(--text-hi);background:rgba(255,255,255,.04)}
.btn-ghost:hover{border-color:var(--neon);color:var(--neon);background:rgba(59,232,198,.08)}
.btn-line{border:1px solid var(--hair);color:var(--ink-text);background:#FFFFFF}
.btn-line:hover{border-color:var(--brand-a);color:var(--brand-a);transform:translateY(-2px)}

/* ---------- 文末标签 ---------- */
.post-foot{max-width:760px;margin:52px auto 0}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.tag-label{font-size:13px;color:var(--muted)}
.tag{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;
  border:1px solid var(--hair);background:#FAF8F6;color:#4A4A55;
  font-size:13px;transition:border-color .2s,color .2s,background .2s;
}
.tag:hover{border-color:var(--brand-a);color:var(--brand-a);background:#FFFFFF}
.breadcrumb-return{max-width:760px;margin:34px auto 0;display:flex;flex-wrap:wrap;gap:12px}
@media (max-width:640px){.breadcrumb-return .btn{width:100%}}

/* ---------- 相关推荐 ---------- */
.related{padding:64px 0 72px;background:var(--paper)}
@media (min-width:1024px){.related{padding:96px 0 100px}}
.sec-head{margin-bottom:34px}
.sec-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:#7A7A88;
}
.sec-kicker::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--grad)}
.sec-head h2{margin-top:12px;font-size:clamp(23px,2.9vw,32px);color:var(--ink-text)}
.sec-head p{margin-top:12px;color:var(--muted);font-size:15px;max-width:660px}
.card-grid{display:grid;gap:22px;grid-template-columns:1fr}
@media (min-width:640px){.card-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.card-grid{grid-template-columns:repeat(3,1fr)}}
.rcard{
  display:flex;flex-direction:column;overflow:hidden;background:#FFFFFF;
  border:1px solid var(--hair);border-radius:var(--r-lg);
  box-shadow:var(--shadow-light);transition:transform .2s,box-shadow .2s;
}
.rcard:hover{transform:translateY(-4px);box-shadow:0 22px 46px -24px rgba(27,27,34,.3)}
.rcard-media{position:relative;overflow:hidden;aspect-ratio:16/10;background:var(--grad)}
@media (min-width:1024px){.rcard-media{aspect-ratio:4/3}}
.rcard-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.rcard:hover .rcard-media img{transform:scale(1.03)}
.rcard-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.rcard-tag{
  align-self:flex-start;padding:3px 10px;border-radius:var(--r-xs);
  border:1px solid rgba(59,232,198,.5);background:rgba(59,232,198,.14);
  color:#0E7A63;font-size:12px;letter-spacing:.03em;
}
.rcard-title{
  font-size:17.5px;font-weight:700;color:var(--ink-text);line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .2s;
}
.rcard:hover .rcard-title{color:var(--brand-a)}
.rcard-desc{
  font-size:14px;color:var(--muted);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rcard-time{margin-top:auto;font-size:12.5px;color:#8E8E9B;letter-spacing:.02em}

/* ---------- 底部 CTA ---------- */
.end-cta{
  position:relative;background:var(--ink);color:var(--text-hi);
  padding:64px 0;overflow:hidden;
}
@media (min-width:1024px){.end-cta{padding:88px 0}}
.end-cta::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;background:var(--grad);opacity:.5;
}
.end-cta .cta-inner{
  display:grid;gap:26px;align-items:center;grid-template-columns:1fr;
}
@media (min-width:1024px){.end-cta .cta-inner{grid-template-columns:1.4fr .9fr}}
.end-cta h2{font-size:clamp(22px,2.8vw,32px)}
.end-cta p{margin-top:14px;color:var(--text-lo);font-size:15px;max-width:600px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
@media (min-width:1024px){.cta-actions{justify-content:flex-end}}
@media (max-width:640px){.cta-actions .btn{width:100%}}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--ink);color:var(--text-lo);border-top:1px solid var(--line);padding:56px 0 26px}
.foot-grid{display:grid;gap:34px;grid-template-columns:1fr}
@media (min-width:768px){.foot-grid{grid-template-columns:1.4fr 1fr 1fr}}
.foot-brand{display:flex;align-items:center;gap:10px;color:var(--text-hi)}
.foot-brand .brand-mark{width:32px;height:32px;border-radius:var(--r-xs);background:var(--grad);display:grid;place-items:center;font-size:12.5px;font-weight:800;color:#0A0B10}
.foot-brand .brand-text{font-size:16px;font-weight:800}
.foot-desc{margin-top:14px;font-size:14px;line-height:1.85;max-width:380px;color:var(--text-lo)}
.foot-title{font-size:14px;color:var(--text-hi);font-weight:700;letter-spacing:.04em;margin-bottom:14px}
.foot-list{display:flex;flex-direction:column;gap:10px}
.foot-link{font-size:14px;color:var(--text-lo);transition:color .2s,transform .2s;display:inline-block}
.foot-link:hover{color:var(--neon);transform:translateX(3px)}
.foot-info{font-size:14px;line-height:2;color:var(--text-lo)}
.foot-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px 20px;justify-content:space-between;
  font-size:13px;color:#8A8A99;
}

/* roulang page: category1 */
:root{
  --ink:#0A0B10;
  --ink-2:#12141C;
  --paper:#F6F4F1;
  --line:rgba(255,255,255,.08);
  --brand-a:#6D4AFF;
  --brand-b:#FF4D9D;
  --neon:#3BE8C6;
  --text-hi:#F2F0EE;
  --text-lo:#A6A6B4;
  --ink-text:#1B1B22;
  --line-light:#E7E3DE;
  --soft-light:#FAF8F6;
  --grad:linear-gradient(115deg,var(--brand-a),var(--brand-b));
  --r-lg:24px;
  --r-md:18px;
  --r-sm:10px;
  --r-pill:999px;
  --shadow-dark:0 1px 0 rgba(255,255,255,.06),0 24px 60px -30px rgba(109,74,255,.45);
  --shadow-light:0 10px 30px -18px rgba(27,27,34,.18);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--ink);
  color:var(--text-hi);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.28}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.wrap{max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:768px){.wrap{padding:0 32px}}
@media(min-width:1280px){.wrap{padding:0}}
:focus-visible{outline:2px solid var(--neon);outline-offset:3px;border-radius:6px}

/* ---------- 顶部导航 ---------- */
.site-head{position:sticky;top:0;z-index:80;background:rgba(10,11,16,.93);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.site-head::after{content:"";display:block;height:1px;background:var(--grad);opacity:.55}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;height:60px}
@media(min-width:1024px){.nav-wrap{height:68px}}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
.brand-mark{width:34px;height:34px;flex:0 0 34px;border-radius:var(--r-sm);background:var(--grad);display:grid;place-items:center;font-size:13px;font-weight:800;color:#0A0B10;letter-spacing:0}
.brand-text{font-size:17px;font-weight:800;color:var(--text-hi);white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-link{position:relative;display:block;padding:9px 14px;border-radius:var(--r-sm);font-size:15px;color:var(--text-lo);transition:color .2s ease,background .2s ease}
.nav-link::after{content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform .2s ease}
.nav-link:hover{color:var(--text-hi)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:#fff;background:rgba(255,255,255,.12);text-shadow:0 0 12px rgba(59,232,198,.55)}
.nav-link.is-active::after{display:none}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-cta{display:none;padding:10px 20px;border-radius:var(--r-pill);background:var(--grad);color:#0A0B10;font-size:14px;font-weight:800;transition:filter .2s ease,box-shadow .2s ease}
.nav-cta:hover{filter:brightness(1.06);box-shadow:0 12px 28px -14px rgba(255,77,157,.7)}
@media(min-width:900px){.nav-cta{display:inline-block}}
.nav-toggle{display:grid;place-items:center;width:40px;height:40px;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--ink-2);color:var(--text-hi);cursor:pointer}
@media(min-width:1024px){.nav-toggle{display:none}}
@media(max-width:1023px){
  .nav-links{position:fixed;top:61px;left:0;right:0;flex-direction:column;align-items:stretch;gap:8px;padding:14px 20px 20px;background:var(--ink-2);border-bottom:1px solid var(--line);box-shadow:0 30px 60px -30px rgba(0,0,0,.9);transform:translateY(-10px);opacity:0;pointer-events:none;transition:opacity .2s ease,transform .2s ease}
  .nav-links.is-open{transform:translateY(0);opacity:1;pointer-events:auto}
  .nav-link{border-radius:8px;padding:12px 14px}
  .nav-link::after{display:none}
}
@media(max-width:420px){.brand-text{font-size:15px}}

/* ---------- 分类首屏 ---------- */
.cat-hero{position:relative;background:var(--ink) url('/assets/images/backpic/back-1.webp') center/cover no-repeat;overflow:hidden}
.cat-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(rgba(10,11,16,.86),rgba(10,11,16,.94))}
.cat-hero .hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1fr;gap:48px;padding-top:40px;padding-bottom:64px}
@media(min-width:1024px){
  .cat-hero .hero-grid{grid-template-columns:7fr 5fr;gap:56px;align-items:center;padding-top:56px;padding-bottom:96px}
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12px;color:var(--text-lo);margin-bottom:22px}
.crumbs a{color:var(--text-lo);transition:color .2s ease}
.crumbs a:hover{color:var(--neon)}
.crumbs span{opacity:.5}
.crumbs em{font-style:normal;color:var(--text-hi)}
.hero-tag{display:inline-block;padding:6px 14px;border-radius:var(--r-sm);border:1px solid rgba(59,232,198,.45);background:rgba(59,232,198,.12);color:var(--neon);font-size:12px;font-weight:700;letter-spacing:.04em;margin-bottom:20px}
.cat-hero h1{font-size:clamp(30px,4.6vw,54px);line-height:1.2}
.cat-hero h1 .grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{margin-top:18px;font-size:16px;color:var(--text-lo);max-width:560px}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.btn{display:inline-flex;align-items:center;gap:9px;padding:13px 26px;border-radius:var(--r-pill);font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;transition:transform .2s ease,filter .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease}
.btn-primary{background:var(--grad);color:#0A0B10}
.btn-primary:hover{filter:brightness(1.06);box-shadow:0 18px 40px -20px rgba(255,77,157,.75);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border-color:rgba(255,255,255,.28);color:var(--text-hi);background:transparent}
.btn-ghost:hover{border-color:rgba(255,255,255,.55);background:rgba(255,255,255,.06)}
.hero-visual{position:relative}
.hero-shot img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-lg);border:1px solid var(--line)}
.badge-stack{margin-top:18px;display:flex;flex-direction:column;gap:10px}
@media(min-width:520px){.badge-stack{flex-direction:row;flex-wrap:wrap}}
.stat-badge{display:flex;align-items:baseline;gap:9px;padding:12px 16px;border-radius:var(--r-md);border:1px solid var(--line);background:rgba(59,232,198,.12);box-shadow:var(--shadow-dark)}
.stat-badge .num{font-size:22px;font-weight:800;color:var(--neon);font-variant-numeric:tabular-nums;letter-spacing:0}
.stat-badge .lbl{font-size:13px;color:var(--text-lo);line-height:1.4}
.stat-badge.b2{transform:translateY(-14px)}
.stat-badge.b3{transform:translateY(6px)}
@media(max-width:519px){.stat-badge.b2,.stat-badge.b3{transform:none}}

/* ---------- 浅色内容区 ---------- */
.page-light{background:var(--paper);color:var(--ink-text)}
.page-light p{color:#4A4A55}
.sec{padding:64px 0}
@media(min-width:1024px){.sec{padding:96px 0}}
.sec-head{max-width:760px;margin-bottom:40px}
@media(min-width:1024px){.sec-head{margin-bottom:56px}}
.sec-head h2{font-size:clamp(24px,3vw,36px);color:var(--ink-text)}
.sec-head p{margin-top:16px;font-size:16px;color:#5A5A66}
.eyebrow{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--brand-a);margin-bottom:12px}

.intro-grid{display:grid;grid-template-columns:1fr;gap:36px;align-items:start}
@media(min-width:1024px){.intro-grid{grid-template-columns:7fr 5fr;gap:56px}}
.intro-text h2{font-size:clamp(24px,3vw,36px);color:var(--ink-text);margin-bottom:22px}
.intro-text p + p{margin-top:18px}
.intro-text .quote{margin-top:26px;padding:20px 24px;border-left:4px solid transparent;border-image:var(--grad) 1;background:#fff;border-radius:0 var(--r-md) var(--r-md) 0;color:#3A3A45;font-size:15px}
.intro-side{display:flex;flex-direction:column;gap:20px}
.side-card{background:#fff;border:1px solid var(--line-light);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-light)}
.side-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
@media(min-width:1024px){.side-card img{aspect-ratio:4/3}}
.side-card .side-body{padding:20px 24px 24px}
.side-card h3{font-size:20px;color:var(--ink-text);margin-bottom:10px}
.side-card p{font-size:15px;color:#5A5A66}
.side-list{background:#fff;border:1px solid var(--line-light);border-radius:var(--r-lg);padding:22px 24px;box-shadow:var(--shadow-light)}
.side-list li{display:flex;gap:12px;padding:11px 0;border-bottom:1px dashed #EDE8E2;font-size:15px;color:#3A3A45}
.side-list li:last-child{border-bottom:0}
.side-list i{color:var(--neon);margin-top:6px;font-size:12px}

/* ---------- 核对清单 ---------- */
.check-list{display:grid;grid-template-columns:1fr;gap:18px}
@media(min-width:768px){.check-list{grid-template-columns:repeat(2,1fr);gap:22px}}
.check-item{display:flex;gap:18px;padding:22px 24px;background:#fff;border:1px solid var(--line-light);border-radius:var(--r-md);transition:transform .2s ease,box-shadow .2s ease}
.check-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-light)}
.check-num{flex:0 0 40px;width:40px;height:40px;border-radius:var(--r-pill);background:var(--grad);color:#0A0B10;display:grid;place-items:center;font-weight:800;font-size:15px;font-variant-numeric:tabular-nums}
.check-item h3{font-size:17px;color:var(--ink-text);margin-bottom:6px}
.check-item p{font-size:15px;color:#5A5A66;line-height:1.75}

/* ---------- 时间线（深色） ---------- */
.sec-ink{background:var(--ink);color:var(--text-hi);position:relative}
.sec-ink::before{content:"";position:absolute;inset:0;background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;opacity:.12}
.sec-ink > .wrap{position:relative;z-index:1}
.sec-ink .sec-head h2{color:var(--text-hi)}
.sec-ink .sec-head p{color:var(--text-lo)}
.steps{display:grid;grid-template-columns:1fr;gap:18px}
@media(min-width:768px){.steps{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.steps{grid-template-columns:repeat(4,1fr)}}
.step{position:relative;padding:26px 22px;background:var(--ink-2);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-dark);transition:transform .2s ease}
.step:hover{transform:translateY(-4px)}
.step .step-no{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:var(--r-pill);border:1px solid rgba(59,232,198,.5);background:rgba(59,232,198,.12);color:var(--neon);font-weight:800;font-size:14px;font-variant-numeric:tabular-nums;margin-bottom:16px}
.step h3{font-size:17px;color:var(--text-hi);margin-bottom:8px}
.step p{font-size:14px;color:var(--text-lo);line-height:1.75}

/* ---------- 对比表 ---------- */
.cmp{display:grid;grid-template-columns:1.5fr 1fr 1fr;background:#fff;border:1px solid var(--line-light);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-light)}
.cmp-h{padding:16px 20px;background:var(--soft-light);font-size:13px;font-weight:800;color:#6B6B78;letter-spacing:.04em;display:flex;align-items:center;gap:8px}
.cmp-h.is-top{background:linear-gradient(180deg,rgba(109,74,255,.12),rgba(255,77,157,.08));color:var(--ink-text);box-shadow:inset 0 0 0 1px rgba(109,74,255,.35)}
.cmp-h.is-top .pin{font-size:11px;font-weight:800;color:#0A0B10;background:var(--grad);padding:3px 9px;border-radius:var(--r-sm)}
.cmp-c{padding:16px 20px;min-height:56px;display:flex;align-items:center;gap:8px;font-size:15px;color:#2A2A32;border-top:1px solid #EFEBE6}
.cmp-c.alt{background:var(--soft-light)}
.cmp-c .ok{color:var(--neon);font-size:14px}
.cmp-c .no{color:rgba(27,27,34,.35);font-size:14px}
.cmp-c.name{font-weight:600}
@media(max-width:767px){
  .cmp{grid-template-columns:1fr;border-radius:var(--r-md)}
  .cmp-h{display:none}
  .cmp-c{border-top:0;min-height:auto;padding:8px 18px;font-size:14px}
  .cmp-c.name{padding-top:18px;border-top:1px solid #EFEBE6;font-weight:800;color:var(--ink-text)}
  .cmp-c.name.first{border-top:0}
  .cmp-c[data-label]::before{content:attr(data-label);color:#6B6B78;font-weight:600;margin-right:8px}
  .cmp-c.alt{background:transparent}
}

/* ---------- FAQ ---------- */
.faq{max-width:820px;margin:0 auto}
.faq-item{position:relative;background:#fff;border:1px solid var(--line-light);border-radius:var(--r-md);margin-bottom:14px;overflow:hidden;transition:box-shadow .2s ease}
.faq-item:hover{box-shadow:var(--shadow-light)}
.faq-item.is-open{box-shadow:var(--shadow-light)}
.faq-item::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--grad);transform:scaleY(0);transform-origin:top;transition:transform .2s ease}
.faq-item.is-open::before{transform:scaleY(1)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 24px;background:transparent;border:0;text-align:left;font-size:17px;font-weight:600;color:var(--ink-text);cursor:pointer;line-height:1.6}
.faq-icon{position:relative;flex:0 0 22px;width:22px;height:22px;transition:transform .25s ease}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand-a);border-radius:2px}
.faq-icon::before{left:0;right:0;top:10px;height:2px}
.faq-icon::after{top:0;bottom:0;left:10px;width:2px}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-a p{padding:0 24px 22px;font-size:15px;line-height:1.85;color:#5A5A66}

/* ---------- CTA ---------- */
.cta-band{position:relative;background:var(--ink);overflow:hidden}
.cta-band::before{content:"";position:absolute;inset:0;background:url('/assets/images/backpic/back-3.webp') center/cover no-repeat;opacity:.18}
.cta-band .wrap{position:relative;z-index:1;padding-top:64px;padding-bottom:64px}
@media(min-width:1024px){.cta-band .wrap{padding-top:88px;padding-bottom:88px}}
.cta-inner{display:grid;grid-template-columns:1fr;gap:28px;align-items:center;background:var(--ink-2);border:1px solid var(--line);border-radius:var(--r-lg);padding:32px 28px;box-shadow:var(--shadow-dark)}
@media(min-width:1024px){.cta-inner{grid-template-columns:8fr 4fr;padding:48px 48px}}
.cta-inner h2{font-size:clamp(24px,3vw,34px);color:var(--text-hi)}
.cta-inner p{margin-top:14px;font-size:16px;color:var(--text-lo)}
.cta-btns{display:flex;flex-wrap:wrap;gap:14px}
@media(min-width:1024px){.cta-btns{justify-content:flex-end}}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--ink);border-top:1px solid var(--line);color:var(--text-lo)}
.site-foot .wrap{padding-top:56px;padding-bottom:28px}
.foot-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:768px){.foot-grid{grid-template-columns:2fr 1fr 1fr;gap:40px}}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.foot-brand .brand-mark{display:grid;place-items:center}
.foot-brand .brand-text{font-size:17px;font-weight:800;color:var(--text-hi)}
.foot-desc{font-size:14px;line-height:1.8;color:var(--text-lo);max-width:420px}
.foot-title{font-size:14px;font-weight:800;color:var(--text-hi);letter-spacing:.06em;margin-bottom:16px}
.foot-list{display:flex;flex-direction:column;gap:10px}
.foot-link{font-size:14px;color:var(--text-lo);transition:color .2s ease}
.foot-link:hover{color:var(--neon)}
.foot-info{font-size:14px;line-height:2;color:var(--text-lo)}
.foot-bottom{margin-top:40px;padding-top:20px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;font-size:13px;color:var(--text-lo)}

/* roulang page: category2 */
:root{
  --ink:#0A0B10;
  --ink-2:#12141C;
  --paper:#F6F4F1;
  --line:rgba(255,255,255,.08);
  --brand-a:#6D4AFF;
  --brand-b:#FF4D9D;
  --neon:#3BE8C6;
  --text-hi:#F2F0EE;
  --text-lo:#A6A6B4;
  --ink-text:#1B1B22;
  --r-lg:24px;
  --r-md:18px;
  --r-xs:10px;
  --shadow-dark:0 24px 60px -30px rgba(109,74,255,.45);
  --shadow-light:0 10px 30px -18px rgba(27,27,34,.18);
  --sec-pad:64px;
}
@media (min-width:1024px){:root{--sec-pad:96px}}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  background:var(--ink);
  color:var(--text-hi);
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;font-weight:800;line-height:1.35}
p{margin:0}
ul{margin:0;padding:0}
:focus-visible{outline:2px solid var(--neon);outline-offset:3px;border-radius:6px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.wrap{padding:0 32px}}
@media (min-width:1280px){.wrap{padding:0}}

/* ---------- 顶栏导航 ---------- */
.site-head{
  position:sticky;top:0;z-index:60;
  background:rgba(10,11,16,.92);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.site-head::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,var(--brand-a),var(--brand-b));
  opacity:.55;pointer-events:none;
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:68px}
@media (max-width:767px){.nav-inner{height:60px}}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:var(--r-xs);
  background:linear-gradient(115deg,var(--brand-a),var(--brand-b));
  display:grid;place-items:center;
  font-size:13px;font-weight:800;letter-spacing:.02em;color:#0A0B10;
}
.brand-text{font-size:17px;font-weight:800;color:var(--text-hi);white-space:nowrap}
.nav-links{display:none;align-items:center;gap:6px}
@media (min-width:1024px){.nav-links{display:flex}}
.nav-link{
  position:relative;display:inline-block;
  padding:9px 14px;border-radius:var(--r-xs);
  font-size:15px;color:var(--text-lo);
  transition:color .2s ease,background-color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  background:linear-gradient(90deg,var(--brand-a),var(--brand-b));
  transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
}
.nav-link:hover{color:var(--text-hi)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{
  color:var(--text-hi);
  background:rgba(255,255,255,.12);
  text-shadow:0 0 12px rgba(59,232,198,.55);
}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-cta{
  display:inline-flex;align-items:center;height:40px;padding:0 18px;
  border-radius:999px;font-size:14px;font-weight:700;color:#12141C;
  background:linear-gradient(115deg,var(--brand-a),var(--brand-b));
  box-shadow:0 12px 26px -14px rgba(109,74,255,.9);
  transition:filter .2s ease,transform .2s ease,box-shadow .2s ease;
}
.nav-cta:hover{filter:brightness(1.06);box-shadow:0 16px 32px -14px rgba(109,74,255,1)}
.nav-cta:active{transform:translateY(1px)}
@media (max-width:479px){.nav-cta{padding:0 13px;font-size:13px}}
.nav-toggle{
  display:grid;place-items:center;width:42px;height:42px;
  border-radius:var(--r-xs);border:1px solid var(--line);
  background:rgba(255,255,255,.06);color:var(--text-hi);
  transition:background-color .2s ease;
}
.nav-toggle:hover{background:rgba(255,255,255,.12)}
@media (min-width:1024px){.nav-toggle{display:none}}
.nav-drawer{display:none;border-top:1px solid var(--line);background:var(--ink-2)}
.nav-drawer.is-open{display:block;animation:drawerIn .22s ease}
@keyframes drawerIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}
.drawer-list{display:flex;flex-direction:column;gap:6px;padding:14px 0 18px}
.drawer-link{
  display:block;padding:12px 14px;border-radius:8px;
  font-size:15px;color:var(--text-lo);background:rgba(255,255,255,.03);
  transition:background-color .2s ease,color .2s ease;
}
.drawer-link:hover{color:var(--text-hi);background:rgba(255,255,255,.08)}
.drawer-link.is-active{color:var(--text-hi);background:rgba(255,255,255,.12);text-shadow:0 0 12px rgba(59,232,198,.55)}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:64px 0 56px;
  background-image:linear-gradient(rgba(10,11,16,.86),rgba(10,11,16,.94)),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
}
@media (min-width:1024px){.hero{padding:88px 0 80px}}
.hero-grid{display:grid;grid-template-columns:1fr;gap:36px;align-items:center}
@media (min-width:1024px){.hero-grid{grid-template-columns:7fr 5fr;gap:56px}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  border:1px solid rgba(59,232,198,.35);
  background:rgba(59,232,198,.12);
  font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--neon);
}
.hero-title{
  margin:20px 0 16px;
  font-size:clamp(30px,4.6vw,54px);
  line-height:1.2;
  color:var(--text-hi);
}
.hero-title em{
  font-style:normal;
  background:linear-gradient(115deg,var(--brand-a),var(--brand-b));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{max-width:34em;font-size:16px;line-height:1.9;color:var(--text-lo)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:52px;padding:0 30px;border-radius:999px;
  font-size:15px;font-weight:700;
  transition:filter .2s ease,transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease;
}
.btn-primary{
  background:linear-gradient(115deg,var(--brand-a),var(--brand-b));
  color:#12141C;
  box-shadow:0 18px 40px -20px rgba(109,74,255,.95);
}
.btn-primary:hover{filter:brightness(1.06);box-shadow:0 22px 46px -20px rgba(109,74,255,1)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{
  border:1px solid rgba(255,255,255,.24);
  color:var(--text-hi);
  background:rgba(255,255,255,.02);
}
.btn-ghost:hover{border-color:rgba(255,255,255,.5);background:rgba(255,255,255,.07)}
.btn-ghost:active{transform:translateY(1px)}
.stat-stack{display:flex;flex-direction:column;gap:14px}
@media (min-width:1024px){.stat-stack{padding-left:24px}}
.stat-card{
  border:1px solid var(--line);
  background:rgba(59,232,198,.12);
  border-radius:var(--r-md);
  padding:18px 22px;
  box-shadow:var(--shadow-dark);
  display:flex;align-items:baseline;gap:14px;
  max-width:330px;
}
.stat-stack .stat-card:nth-child(2){margin-left:34px}
.stat-stack .stat-card:nth-child(3){margin-left:14px}
@media (max-width:767px){.stat-stack .stat-card:nth-child(2),.stat-stack .stat-card:nth-child(3){margin-left:0}}
.stat-num{
  font-size:30px;font-weight:800;line-height:1;color:var(--text-hi);
  font-variant-numeric:tabular-nums;
}
.stat-num em{font-style:normal;font-size:14px;font-weight:600;color:var(--neon);margin-left:2px}
.stat-label{font-size:13px;color:var(--text-lo)}

/* ---------- 横向分类索引条 ---------- */
.cat-index{background:var(--ink-2);border-bottom:1px solid var(--line)}
.cat-index-inner{display:flex;align-items:center;gap:14px;padding-top:14px;padding-bottom:14px}
.cat-index-label{font-size:12px;letter-spacing:.16em;font-weight:700;color:var(--text-lo);white-space:nowrap}
.chips{display:flex;align-items:center;gap:10px;overflow-x:auto;scrollbar-width:none;padding-bottom:2px}
.chips::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;
  padding:7px 16px;border-radius:999px;
  border:1px solid rgba(255,255,255,.14);
  font-size:13px;color:var(--text-lo);
  transition:color .2s ease,border-color .2s ease,background-color .2s ease;
}
.chip:hover{color:var(--text-hi);border-color:rgba(59,232,198,.55);background:rgba(59,232,198,.1)}

/* ---------- 浅色内容区 ---------- */
.sec-light{background:var(--paper);color:var(--ink-text);padding:var(--sec-pad) 0}
.sec-light h2{font-size:clamp(24px,3vw,36px);color:var(--ink-text)}
.sec-light h3{font-size:20px;color:var(--ink-text)}
.kicker{
  display:inline-block;margin-bottom:12px;
  font-size:12px;font-weight:700;letter-spacing:.16em;
  color:var(--brand-a);
}
.layout{display:grid;grid-template-columns:1fr;gap:32px;align-items:start}
@media (min-width:1024px){.layout{grid-template-columns:240px minmax(0,1fr);gap:48px}}

/* 粘性目录 */
.toc{
  background:#FFFFFF;border:1px solid #E7E3DE;border-radius:var(--r-md);
  padding:18px;box-shadow:var(--shadow-light);
}
@media (min-width:1024px){.toc{position:sticky;top:96px}}
.toc-title{font-size:12px;font-weight:700;letter-spacing:.16em;color:#8A8794}
.toc-list{display:flex;gap:8px;overflow-x:auto;margin-top:12px;scrollbar-width:none}
.toc-list::-webkit-scrollbar{display:none}
@media (min-width:1024px){.toc-list{flex-direction:column;overflow:visible;margin-top:14px}}
.toc-link{
  flex:0 0 auto;
  display:block;padding:9px 12px;border-radius:var(--r-xs);
  font-size:14px;color:#5A5A66;white-space:nowrap;
  transition:background-color .2s ease,color .2s ease;
}
.toc-link:hover{background:#F5F2EF;color:var(--brand-a)}
.toc-link.is-current{background:rgba(109,74,255,.1);color:var(--brand-a);font-weight:700}
.toc-note{margin-top:16px;padding-top:14px;border-top:1px dashed #E7E3DE;font-size:13px;line-height:1.7;color:#7A7A86}

/* 内容流 */
.flow{display:flex;flex-direction:column;gap:48px;min-width:0}
@media (min-width:1024px){.flow{gap:72px}}
.flow-item{display:grid;grid-template-columns:1fr;gap:24px;align-items:center;scroll-margin-top:96px}
@media (min-width:768px){.flow-item{grid-template-columns:1fr 1fr;gap:40px}}
@media (min-width:768px){.flow-item.is-reverse .flow-media{order:-1}}
.flow-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-lg);border:1px solid #E7E3DE;
  box-shadow:var(--shadow-light);
}
@media (min-width:768px){.flow-media img{aspect-ratio:4/3}}
.flow-text p{margin-top:16px;font-size:16px;line-height:1.85;color:#2A2A32}
.point-list{margin-top:20px;counter-reset:pt}
.point-list li{
  position:relative;padding:12px 0 12px 44px;
  border-top:1px solid #E7E3DE;font-size:15px;color:#3A3A46;
}
.point-list li:first-child{border-top:0}
.point-list li::before{
  counter-increment:pt;content:counter(pt,decimal-leading-zero);
  position:absolute;left:0;top:13px;
  width:28px;height:28px;border-radius:999px;
  background:linear-gradient(115deg,var(--brand-a),var(--brand-b));
  color:#FFFFFF;font-size:12px;font-weight:700;
  display:grid;place-items:center;font-variant-numeric:tabular-nums;
}
.point-list strong{color:var(--ink-text);font-weight:700}

.step-list{margin-top:20px;display:grid;gap:14px}
.step{
  background:#FFFFFF;border:1px solid #E7E3DE;border-radius:var(--r-md);
  padding:18px 20px;box-shadow:var(--shadow-light);
  transition:transform .2s ease,box-shadow .2s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:0 18px 40px -22px rgba(27,27,34,.32)}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:28px;height:28px;border-radius:999px;
  border:1px solid rgba(109,74,255,.45);color:var(--brand-a);
  font-size:12px;font-weight:800;font-variant-numeric:tabular-nums;margin-bottom:8px;
}
.step h3{font-size:17px;margin-bottom:6px}
.step p{font-size:14.5px;color:#5A5A66}

/* 小卡推荐 */
.mini-grid{display:grid;grid-template-columns:1fr;gap:20px;margin-top:16px}
@media (min-width:768px){.mini-grid{grid-template-columns:1fr 1fr}}
.mini-card{
  display:block;background:#FFFFFF;border:1px solid #E7E3DE;border-radius:var(--r-lg);
  padding:26px;box-shadow:var(--shadow-light);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.mini-card:hover{transform:translateY(-4px);box-shadow:0 20px 44px -22px rgba(27,27,34,.34);border-color:#DAD3CC}
.mini-tag{
  display:inline-block;padding:4px 12px;border-radius:var(--r-xs);
  border:1px solid rgba(59,232,198,.5);background:rgba(59,232,198,.14);
  color:#1C7F6E;font-size:12px;font-weight:700;
}
.mini-card h3{margin:14px 0 10px;font-size:19px}
.mini-card p{font-size:14.5px;color:#5A5A66}
.mini-more{display:inline-block;margin-top:16px;font-size:14px;font-weight:700;color:var(--brand-a)}

/* FAQ */
.faq{max-width:820px;margin:0 auto}
.faq-item{
  position:relative;background:#FFFFFF;border:1px solid #E7E3DE;
  border-radius:var(--r-md);margin-bottom:12px;overflow:hidden;
  box-shadow:var(--shadow-light);
}
.faq-q{
  width:100%;text-align:left;background:none;border:0;
  padding:18px 56px 18px 22px;
  font-size:17px;font-weight:600;color:var(--ink-text);
  transition:color .2s ease;
}
.faq-q:hover{color:var(--brand-a)}
.faq-q::after{
  content:"+";position:absolute;right:22px;top:22px;
  font-size:20px;line-height:1;color:var(--brand-a);
  transition:transform .25s ease;
}
.faq-item.is-open .faq-q::after{transform:rotate(45deg)}
.faq-item.is-open::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;
  border-radius:3px;background:linear-gradient(180deg,var(--brand-a),var(--brand-b));
}
.faq-a{
  max-height:0;overflow:hidden;
  padding:0 22px;font-size:15px;line-height:1.8;color:#4A4A56;
  transition:max-height .3s ease,padding .3s ease;
}
.faq-item.is-open .faq-a{max-height:420px;padding:0 22px 20px}

/* CTA 带 */
.cta-band{
  position:relative;background:var(--ink);color:var(--text-hi);
  padding:var(--sec-pad) 0;
  background-image:linear-gradient(rgba(10,11,16,.9),rgba(10,11,16,.96)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
}
.cta-band::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,var(--brand-a),var(--brand-b));opacity:.55;
}
.cta-inner{max-width:720px}
.cta-inner h2{font-size:clamp(24px,3vw,36px);color:var(--text-hi)}
.cta-inner p{margin-top:16px;font-size:16px;color:var(--text-lo)}
.cta-inner .btn{margin-top:28px}

/* 页脚 */
.site-foot{background:var(--ink-2);border-top:1px solid var(--line);padding:56px 0 28px;color:var(--text-lo)}
.foot-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:768px){.foot-grid{grid-template-columns:1.4fr 1fr 1fr}}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.foot-brand .brand-text{color:var(--text-hi)}
.foot-desc{font-size:14px;line-height:1.8;max-width:32em}
.foot-title{font-size:14px;font-weight:700;color:var(--text-hi);letter-spacing:.06em;margin-bottom:14px}
.foot-list{display:flex;flex-direction:column;gap:10px}
.foot-link{font-size:14px;color:var(--text-lo);transition:color .2s ease}
.foot-link:hover{color:var(--neon)}
.foot-info{font-size:14px;line-height:2}
.foot-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;
  margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
  font-size:13px;color:#7C7C8A;
}