/* roulang page: index */
:root{
  --ink-950:#05090F;
  --ink-900:#080E18;
  --ink-800:#0C1524;
  --ink-700:#111E33;
  --brand-500:#21E6C1;
  --brand-600:#10BFA4;
  --brand-300:#7CF3E0;
  --accent-500:#FF8A4C;
  --text-hi:#EAF2FF;
  --text-mid:#9FB0C7;
  --text-low:#6B7C93;
  --line:rgba(255,255,255,0.08);
  --glass-bg:rgba(255,255,255,0.05);
  --glass-bd:rgba(255,255,255,0.10);
  --card-shadow:0 20px 60px -30px rgba(0,0,0,.9), inset 0 1px 0 rgba(255,255,255,.06);
  --glow-shadow:0 0 0 1px rgba(33,230,193,.35), 0 12px 40px -12px rgba(33,230,193,.55);
  --radius-card:20px;
  --radius-big:24px;
  --radius-pill:999px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ink-950);
  color:var(--text-mid);
  font-family:-apple-system,PingFang SC,Hiragino Sans GB,Microsoft YaHei,system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.022) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.022) 1px,transparent 1px);
  background-size:64px 64px;
  z-index:0;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font:inherit;color:inherit;}
h1,h2,h3,h4{color:var(--text-hi);margin:0;letter-spacing:-.01em;line-height:1.22;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
::selection{background:rgba(33,230,193,.28);color:#fff;}

.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 48px;
  position:relative;
  z-index:1;
}
.section{padding:120px 0;position:relative;}
.section--tight{padding:96px 0;}

/* 顶部导航 */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:80;
  transition:background .25s ease-out,border-color .25s ease-out,backdrop-filter .25s ease-out;
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:rgba(8,14,24,.74);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  border-bottom-color:var(--line);
}
.nav{
  height:72px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.logo{display:flex;align-items:baseline;gap:8px;flex-shrink:0;}
.logo-mark{
  font-size:20px;
  font-weight:700;
  color:var(--text-hi);
  letter-spacing:-.01em;
  display:inline-flex;
  align-items:baseline;
  gap:2px;
}
.logo-mark .logo-brand{color:var(--brand-500);}
.logo-mark .logo-sub{
  font-size:11px;
  font-weight:500;
  color:var(--text-low);
  letter-spacing:.08em;
  margin-left:2px;
}
.nav-menu{
  display:flex;
  align-items:center;
  gap:32px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--text-mid);
  padding:6px 2px;
  transition:color .18s ease-out;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-2px;
  height:1px;
  background:var(--brand-500);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .2s ease-out;
}
.nav-link:hover{color:var(--text-hi);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--text-hi);}
.nav-link.active::after{transform:scaleX(1);}
.nav-link.active::before{
  content:"";
  position:absolute;
  top:50%;left:-12px;
  width:4px;height:4px;
  margin-top:-2px;
  border-radius:50%;
  background:var(--brand-500);
}
.nav-actions{display:flex;align-items:center;gap:16px;flex-shrink:0;}
.nav-cta{
  font-size:14px;
  font-weight:600;
  color:var(--brand-500);
  padding:8px 4px;
  border-bottom:1px solid rgba(33,230,193,.35);
  transition:color .18s ease-out,border-color .18s ease-out,transform .18s ease-out;
}
.nav-cta:hover{color:var(--brand-300);border-color:var(--brand-300);transform:translateY(-1px);}
.nav-icon{
  width:36px;height:36px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:50%;
  border:1px solid var(--line);
  color:var(--text-mid);
  transition:color .18s ease-out,border-color .18s ease-out;
}
.nav-icon:hover{color:var(--brand-500);border-color:rgba(33,230,193,.4);}
.burger{
  display:none;
  width:44px;height:44px;
  border:0;background:transparent;
  padding:0;
  cursor:pointer;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
}
.burger span{
  display:block;
  width:20px;height:1px;
  background:var(--text-hi);
  transition:transform .2s ease-out,opacity .2s ease-out;
}
.drawer{
  position:fixed;
  top:0;right:0;
  width:82vw;
  max-width:360px;
  height:100%;
  background:rgba(8,14,24,.94);
  backdrop-filter:blur(16px) saturate(120%);
  -webkit-backdrop-filter:blur(16px) saturate(120%);
  border-left:1px solid var(--glass-bd);
  transform:translateX(102%);
  transition:transform .28s var(--ease);
  z-index:120;
  display:flex;
  flex-direction:column;
  padding:22px 26px 32px;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;}
.drawer-close{
  width:44px;height:44px;border:0;background:transparent;cursor:pointer;
  color:var(--text-mid);font-size:24px;line-height:1;
}
.drawer-close:hover{color:var(--brand-500);}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{
  font-size:19px;
  color:var(--text-mid);
  padding:16px 0;
  border-bottom:1px solid var(--line);
  transition:color .18s ease-out,padding-left .18s ease-out;
}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--brand-500);padding-left:6px;}
.drawer-foot{margin-top:auto;}
.scrim{
  position:fixed;inset:0;
  background:rgba(5,9,15,.7);
  backdrop-filter:blur(4px);
  -webkit-backdrop-filter:blur(4px);
  z-index:100;
  opacity:0;
  pointer-events:none;
  transition:opacity .24s ease-out;
}
.scrim.is-open{opacity:1;pointer-events:auto;}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:0 26px;
  border-radius:var(--radius-pill);
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  border:1px solid transparent;
  transition:transform .18s ease-out,background .18s ease-out,border-color .18s ease-out,color .18s ease-out,box-shadow .18s ease-out,filter .18s ease-out;
}
.btn:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;}
.btn-primary{
  background:rgba(33,230,193,.12);
  border-color:rgba(33,230,193,.45);
  color:var(--brand-300);
  box-shadow:var(--glow-shadow);
  animation:pulseGlow 4.2s ease-in-out infinite;
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);filter:brightness(.96);}
.btn-primary[disabled]{opacity:.45;box-shadow:none;animation:none;cursor:not-allowed;}
.btn-ghost{
  background:transparent;
  border-color:rgba(255,255,255,.16);
  color:var(--text-hi);
}
.btn-ghost:hover{border-color:rgba(33,230,193,.55);color:var(--brand-300);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{min-height:40px;padding:0 20px;font-size:14px;}
@keyframes pulseGlow{
  0%,100%{box-shadow:0 0 0 1px rgba(33,230,193,.32),0 12px 34px -14px rgba(33,230,193,.5);}
  50%{box-shadow:0 0 0 1px rgba(33,230,193,.42),0 14px 42px -12px rgba(33,230,193,.62);}
}

/* 通用文字 */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  letter-spacing:.08em;
  color:var(--brand-500);
  text-transform:none;
}
.eyebrow::before{
  content:"";
  width:6px;height:6px;border-radius:50%;
  background:var(--brand-500);
  box-shadow:0 0 10px rgba(33,230,193,.7);
}
.section-title{font-size:clamp(26px,3vw,34px);font-weight:700;}
.section-desc{margin-top:14px;color:var(--text-mid);font-size:16px;max-width:640px;}
.mono-num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* Hero */
.hero{
  position:relative;
  padding:168px 0 96px;
  overflow:hidden;
}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  opacity:.42;
  z-index:0;
}
.hero-bg::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,9,15,.72) 0%,rgba(5,9,15,.86) 58%,var(--ink-950) 100%);
}
.hero-glow{
  position:absolute;
  border-radius:50%;
  filter:blur(10px);
  pointer-events:none;
  z-index:0;
}
.hero-glow--a{
  width:520px;height:520px;
  top:-120px;right:-60px;
  background:radial-gradient(circle,rgba(33,230,193,.18) 0%,rgba(33,230,193,0) 68%);
}
.hero-glow--b{
  width:420px;height:420px;
  bottom:-160px;left:-120px;
  background:radial-gradient(circle,rgba(255,138,76,.12) 0%,rgba(255,138,76,0) 70%);
}
.hero-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
  position:relative;
  z-index:2;
}
.hero h1{
  font-size:clamp(32px,4.6vw,54px);
  font-weight:700;
  line-height:1.14;
  margin-top:20px;
}
.hero h1 .hl{color:var(--brand-500);}
.hero-sub{
  margin-top:22px;
  font-size:17px;
  color:var(--text-mid);
  max-width:520px;
}
.hero-actions{
  margin-top:34px;
  display:flex;
  flex-wrap:wrap;
  gap:14px;
}
.hero-trust{
  margin-top:46px;
  display:flex;
  flex-wrap:wrap;
  gap:0;
  border-top:1px solid var(--line);
  padding-top:20px;
}
.hero-trust li{
  font-size:13px;
  color:var(--text-low);
  padding:0 20px;
  border-left:1px solid var(--line);
  line-height:1.4;
}
.hero-trust li:first-child{padding-left:0;border-left:0;}
.hero-visual{
  position:relative;
  border-radius:var(--radius-big);
  overflow:hidden;
  border:1px solid var(--glass-bd);
  box-shadow:var(--card-shadow);
  aspect-ratio:16/10;
}
.hero-visual img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .5s var(--ease);
}
.hero-visual:hover img{transform:scale(1.03);}
.hero-visual::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,9,15,.12) 0%,rgba(5,9,15,.72) 100%);
}
.hero-visual-tag{
  position:absolute;
  left:20px;bottom:20px;
  z-index:2;
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.02em;
  color:var(--brand-300);
  border:1px solid rgba(33,230,193,.4);
  background:rgba(5,9,15,.5);
  border-radius:var(--radius-pill);
  padding:6px 14px;
  backdrop-filter:blur(8px);
}

/* 痛点提问 */
.pain-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:28px 48px;
  margin-top:48px;
}
.pain-item{
  display:flex;
  gap:18px;
  padding:22px 0;
  border-top:1px solid var(--line);
}
.pain-rail{
  width:2px;
  background:linear-gradient(180deg,var(--brand-500),rgba(33,230,193,0));
  flex-shrink:0;
}
.pain-idx{
  font-size:13px;
  color:var(--text-low);
  letter-spacing:.06em;
  margin-bottom:8px;
  display:block;
}
.pain-q{
  font-size:18px;
  font-weight:600;
  color:var(--text-hi);
  line-height:1.5;
}
.pain-a{
  margin-top:8px;
  font-size:15px;
  color:var(--text-mid);
}

/* 卡片 */
.glass{
  background:var(--glass-bg);
  border:1px solid var(--glass-bd);
  border-radius:var(--radius-card);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--card-shadow);
}
.plan-grid{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:24px;
  margin-top:48px;
}
.plan-main{
  grid-row:span 2;
  overflow:hidden;
  display:flex;
  flex-direction:column;
  transition:border-color .2s ease-out,transform .2s ease-out;
}
.plan-main:hover{border-color:rgba(255,255,255,.18);transform:translateY(-4px);}
.plan-main .plan-media{
  aspect-ratio:16/10;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.plan-main .plan-media img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .5s var(--ease);
}
.plan-main:hover .plan-media img{transform:scale(1.03);}
.plan-body{padding:28px 30px 30px;}
.plan-side{
  padding:28px 30px;
  display:flex;
  flex-direction:column;
  gap:14px;
  transition:border-color .2s ease-out,transform .2s ease-out;
}
.plan-side:hover{border-color:rgba(255,255,255,.18);transform:translateY(-4px);}
.plan-head{display:flex;align-items:center;gap:12px;}
.plan-icon{
  width:40px;height:40px;
  border-radius:12px;
  border:1px solid rgba(33,230,193,.32);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--brand-500);
  flex-shrink:0;
}
.plan-title{font-size:20px;font-weight:600;color:var(--text-hi);}
.plan-text{font-size:15px;color:var(--text-mid);}
.plan-link{
  margin-top:auto;
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:600;
  color:var(--brand-500);
  transition:gap .18s ease-out,color .18s ease-out;
}
.plan-link:hover{gap:12px;color:var(--brand-300);}
.plan-points{display:flex;flex-direction:column;gap:8px;font-size:14px;color:var(--text-mid);}
.plan-points li{position:relative;padding-left:16px;}
.plan-points li::before{
  content:"";
  position:absolute;left:0;top:.62em;
  width:5px;height:5px;
  background:var(--brand-500);
}

/* 数据区 */
.stats-band{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  border-radius:var(--radius-big);
  overflow:hidden;
  margin-top:8px;
}
.stat{
  padding:36px 28px;
  border-left:1px solid var(--line);
}
.stat:first-child{border-left:0;}
.stat-num{
  font-size:clamp(36px,4vw,52px);
  font-weight:700;
  line-height:1.05;
  color:var(--brand-300);
  letter-spacing:-.02em;
}
.stat-num.is-accent{color:var(--accent-500);}
.stat-label{
  margin-top:10px;
  font-size:13px;
  color:var(--text-low);
  letter-spacing:.02em;
}

/* 资讯列表 */
.post-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  margin-top:48px;
}
.post-card{
  display:flex;
  flex-direction:column;
  overflow:hidden;
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.post-card:hover{
  transform:translateY(-4px);
  border-color:rgba(255,255,255,.18);
}
.post-media{
  aspect-ratio:16/10;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.post-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.post-card:hover .post-media img{transform:scale(1.03);}
.post-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.post-cat{
  align-self:flex-start;
  font-size:12px;
  letter-spacing:.02em;
  color:var(--brand-500);
  border:1px solid rgba(33,230,193,.35);
  border-radius:var(--radius-pill);
  padding:3px 12px;
  background:transparent;
}
.post-title{
  font-size:18px;
  font-weight:600;
  color:var(--text-hi);
  line-height:1.5;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-excerpt{
  font-size:15px;
  color:var(--text-mid);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-meta{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:var(--text-low);
  border-top:1px solid var(--line);
  padding-top:12px;
}
.post-meta .arrow{color:var(--brand-500);transition:transform .18s ease-out;}
.post-card:hover .post-meta .arrow{transform:translateX(4px);}
.empty-state{
  margin-top:48px;
  padding:64px 32px;
  text-align:center;
  border-radius:var(--radius-big);
  border:1px dashed rgba(255,255,255,.14);
  background:rgba(255,255,255,.02);
}
.empty-state svg{color:var(--brand-500);margin:0 auto 16px;}
.empty-state p{font-size:15px;color:var(--text-mid);margin-bottom:20px;}

/* 表单 */
.form-wrap{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:start;
  margin-top:8px;
}
.form-card{padding:34px 34px 30px;}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:18px;}
.field label{font-size:13px;color:var(--text-mid);letter-spacing:.02em;}
.field input,.field textarea{
  width:100%;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.12);
  border-radius:12px;
  padding:12px 14px;
  font-size:15px;
  color:var(--text-hi);
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.field textarea{min-height:104px;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:var(--text-low);}
.field input:focus,.field textarea:focus{
  outline:none;
  border-color:rgba(33,230,193,.6);
  box-shadow:0 0 0 4px rgba(33,230,193,.15);
}
.field.has-error input,.field.has-error textarea{border-color:rgba(255,138,76,.75);}
.field-error{font-size:12px;color:var(--accent-500);display:none;}
.field.has-error .field-error{display:block;}
.check-row{display:flex;align-items:flex-start;gap:10px;margin:6px 0 20px;}
.check-row input{width:16px;height:16px;margin-top:3px;accent-color:var(--brand-500);}
.check-row span{font-size:13px;color:var(--text-low);line-height:1.6;}
.privacy-note{
  margin-top:16px;
  font-size:12.5px;
  color:var(--text-low);
  line-height:1.7;
}
.privacy-note a{
  color:var(--text-mid);
  border-bottom:1px dashed rgba(159,176,199,.4);
  transition:color .18s ease-out,border-color .18s ease-out;
}
.privacy-note a:hover{color:var(--brand-500);border-color:var(--brand-500);}
.form-side-list{display:flex;flex-direction:column;gap:20px;margin-top:28px;}
.form-side-list li{
  padding:18px 0;
  border-top:1px solid var(--line);
  font-size:15px;
  color:var(--text-mid);
}
.form-side-list strong{display:block;color:var(--text-hi);font-size:16px;font-weight:600;margin-bottom:6px;}

/* 弹层 */
.modal{
  position:fixed;
  inset:0;
  z-index:200;
  display:none;
  align-items:center;
  justify-content:center;
  padding:24px;
}
.modal.is-open{display:flex;}
.modal-backdrop{
  position:absolute;inset:0;
  background:rgba(5,9,15,.7);
  backdrop-filter:blur(4px);
  -webkit-backdrop-filter:blur(4px);
}
.modal-card{
  position:relative;
  width:100%;
  max-width:480px;
  background:rgba(12,21,36,.86);
  border:1px solid var(--glass-bd);
  border-radius:var(--radius-card);
  backdrop-filter:blur(16px) saturate(120%);
  -webkit-backdrop-filter:blur(16px) saturate(120%);
  box-shadow:var(--card-shadow);
  padding:30px 30px 26px;
  z-index:2;
  animation:modalIn .28s var(--ease);
}
@keyframes modalIn{from{opacity:0;transform:translateY(12px);}to{opacity:1;transform:translateY(0);}}
.modal-close{
  position:absolute;
  top:14px;right:14px;
  width:40px;height:40px;
  border:0;background:transparent;
  color:var(--text-low);
  font-size:22px;
  line-height:1;
  cursor:pointer;
}
.modal-close:hover{color:var(--brand-500);}
.modal-title{font-size:22px;font-weight:700;color:var(--text-hi);}
.modal-desc{font-size:14px;color:var(--text-mid);margin-top:8px;}

/* FAQ */
.faq-list{margin-top:44px;display:flex;flex-direction:column;gap:14px;}
.faq-item{
  border-radius:16px;
  overflow:hidden;
  transition:border-color .2s ease-out;
}
.faq-item.is-open{border-color:rgba(33,230,193,.32);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:22px 26px;
  background:transparent;
  border:0;
  text-align:left;
  cursor:pointer;
  font-size:17px;
  font-weight:600;
  color:var(--text-hi);
  line-height:1.6;
}
.faq-q:focus-visible{outline:2px solid var(--brand-500);outline-offset:-2px;}
.faq-icon{
  position:relative;
  width:16px;height:16px;
  flex-shrink:0;
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--brand-500);
  transition:transform .2s ease-out,opacity .2s ease-out;
}
.faq-icon::before{left:0;top:7.5px;width:16px;height:1px;}
.faq-icon::after{top:0;left:7.5px;width:1px;height:16px;}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .28s var(--ease);
}
.faq-a-inner{
  padding:0 26px 24px;
  font-size:15px;
  color:var(--text-mid);
  line-height:1.85;
}

/* CTA 条 */
.cta-band{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  padding:38px 40px;
  border-radius:var(--radius-big);
  margin-top:32px;
}
.cta-band h3{font-size:22px;font-weight:700;}
.cta-band p{font-size:15px;color:var(--text-mid);margin-top:8px;}

/* 页脚 */
.site-footer{
  background:var(--ink-900);
  border-top:1px solid var(--line);
  margin-top:120px;
  position:relative;
  z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding:72px 0 48px;
}
.footer-brand .logo-mark{font-size:19px;}
.footer-tagline{
  margin-top:16px;
  font-size:14px;
  color:var(--text-low);
  line-height:1.8;
  max-width:320px;
}
.footer-col h4{
  font-size:14px;
  font-weight:600;
  color:var(--text-hi);
  margin-bottom:18px;
  letter-spacing:.02em;
}
.footer-links{display:flex;flex-direction:column;gap:12px;}
.footer-links a,.footer-links span{
  font-size:14px;
  color:var(--text-mid);
  transition:color .18s ease-out;
}
.footer-links a:hover{color:var(--brand-500);}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0 34px;
  display:flex;
  flex-wrap:wrap;
  gap:14px 28px;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:var(--text-low);
}
.footer-bottom-links{display:flex;flex-wrap:wrap;gap:20px;}
.footer-bottom-links a:hover{color:var(--brand-500);}

/* 返回顶部 */
.to-top{
  position:fixed;
  right:24px;bottom:24px;
  z-index:60;
  padding:0 18px;
  height:44px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  border-radius:var(--radius-pill);
  font-size:13px;
  font-weight:600;
  color:var(--text-hi);
  background:rgba(12,21,36,.82);
  border:1px solid var(--glass-bd);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  opacity:0;
  pointer-events:none;
  transform:translateY(8px);
  transition:opacity .2s ease-out,transform .2s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.to-top.is-show{opacity:1;pointer-events:auto;transform:translateY(0);}
.to-top:hover{color:var(--brand-500);border-color:rgba(33,230,193,.4);}

/* 入场动画 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease-out,transform .5s ease-out;}
.reveal.is-in{opacity:1;transform:translateY(0);}
.reveal.d1{transition-delay:.08s;}
.reveal.d2{transition-delay:.16s;}
.reveal.d3{transition-delay:.24s;}

.spinner{
  width:16px;height:16px;
  border-radius:50%;
  border:1.5px solid rgba(33,230,193,.3);
  border-top-color:var(--brand-500);
  animation:spin .8s linear infinite;
  display:none;
}
.is-loading .spinner{display:inline-block;}
.is-loading .btn-label{opacity:.7;}
@keyframes spin{to{transform:rotate(360deg);}}

/* 响应式 */
@media (max-width:1200px){
  .container{padding:0 32px;}
}
@media (max-width:1024px){
  .section{padding:96px 0;}
  .hero{padding:148px 0 80px;}
  .hero-grid{grid-template-columns:1fr;gap:44px;}
  .hero-sub{max-width:none;}
  .plan-grid{grid-template-columns:1fr;}
  .plan-main{grid-row:auto;}
  .stats-band{grid-template-columns:repeat(2,1fr);}
  .stat:nth-child(3){border-left:0;}
  .stat:nth-child(n+3){border-top:1px solid var(--line);}
  .post-grid{grid-template-columns:repeat(2,1fr);}
  .form-wrap{grid-template-columns:1fr;gap:40px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .nav-menu{display:none;}
  .burger{display:flex;}
  .nav-cta{display:none;}
}
@media (max-width:768px){
  .container{padding:0 24px;}
  .pain-grid{grid-template-columns:1fr;gap:8px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:30px 26px;}
  .hero-trust li{padding:0 14px;}
}
@media (max-width:640px){
  .container{padding:0 20px;}
  .section{padding:64px 0;}
  .section--tight{padding:56px 0;}
  .hero{padding:124px 0 64px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .hero-trust{flex-direction:column;gap:12px;padding-top:18px;}
  .hero-trust li{padding:0;border-left:0;}
  .post-grid{grid-template-columns:1fr;}
  .stats-band{grid-template-columns:1fr;}
  .stat{border-left:0;border-top:1px solid var(--line);}
  .stat:first-child{border-top:0;}
  .footer-grid{grid-template-columns:1fr;padding:56px 0 36px;}
  .form-card{padding:26px 22px;}
  .modal{padding:0;align-items:flex-end;}
  .modal-card{max-width:none;border-radius:20px 20px 0 0;animation:modalUp .3s var(--ease);}
  @keyframes modalUp{from{opacity:0;transform:translateY(40px);}to{opacity:1;transform:translateY(0);}}
  .faq-q{padding:18px 20px;font-size:16px;}
  .faq-a-inner{padding:0 20px 20px;}
  .to-top{right:16px;bottom:16px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition-duration:.01ms !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: article */
:root{
  --ink-950:#05090F;
  --ink-900:#080E18;
  --ink-800:#0C1524;
  --ink-700:#111E33;
  --brand-500:#21E6C1;
  --brand-600:#10BFA4;
  --brand-300:#7CF3E0;
  --accent-500:#FF8A4C;
  --text-hi:#EAF2FF;
  --text-mid:#9FB0C7;
  --text-low:#6B7C93;
  --line:rgba(255,255,255,.08);
  --glass-bg:rgba(255,255,255,.05);
  --glass-bd:rgba(255,255,255,.10);
  --radius-card:20px;
  --radius-big:24px;
  --radius-img:16px;
  --shadow-glow:0 0 0 1px rgba(33,230,193,.35), 0 12px 40px -12px rgba(33,230,193,.55);
  --shadow-card:0 20px 60px -30px rgba(0,0,0,.9);
  --ease:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ink-950);
  color:var(--text-mid);
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.022) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.022) 1px,transparent 1px);
  background-size:72px 72px;
  z-index:0;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease),background var(--ease);}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
h1,h2,h3,h4{color:var(--text-hi);margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.25;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1248px;margin:0 auto;padding:0 48px;position:relative;z-index:1;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background var(--ease),border-color var(--ease),backdrop-filter var(--ease);
}
.site-header.is-scrolled{
  background:rgba(8,14,24,.72);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(120%);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px;}
.logo{display:inline-flex;align-items:center;gap:8px;}
.logo-mark{
  display:inline-flex;align-items:baseline;gap:6px;
  font-size:19px;font-weight:700;color:var(--text-hi);letter-spacing:.01em;
}
.logo-brand{color:var(--brand-500);letter-spacing:.06em;font-weight:800;}
.logo-sub{font-size:12px;font-weight:500;color:var(--text-low);letter-spacing:.16em;}
.nav-menu{display:flex;align-items:center;gap:32px;}
.nav-link{
  position:relative;
  font-size:15px;font-weight:500;color:var(--text-mid);
  padding:6px 0;display:inline-flex;align-items:center;gap:6px;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:1px;
  background:var(--brand-500);transform:scaleX(0);transform-origin:left;transition:transform var(--ease);
}
.nav-link:hover{color:var(--text-hi);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--text-hi);}
.nav-link.active::after{transform:scaleX(1);}
.nav-link.active::before{
  content:"";width:4px;height:4px;border-radius:50%;background:var(--brand-500);margin-right:2px;
}
.nav-actions{display:flex;align-items:center;gap:20px;}
.nav-cta{
  font-size:14px;font-weight:600;color:var(--brand-500);
  border:1px solid rgba(33,230,193,.4);border-radius:999px;padding:9px 20px;
  transition:background var(--ease),color var(--ease),box-shadow var(--ease),transform var(--ease);
}
.nav-cta:hover{background:rgba(33,230,193,.12);box-shadow:0 0 0 1px rgba(33,230,193,.4),0 10px 30px -14px rgba(33,230,193,.6);transform:translateY(-1px);}
.nav-cta:active{transform:translateY(0);}
.nav-icon{color:var(--text-mid);display:inline-flex;padding:8px;border-radius:10px;}
.nav-icon:hover{color:var(--brand-500);}
.burger{display:none;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;padding:10px;border-radius:10px;}
.burger span{display:block;height:1px;background:var(--text-hi);transition:transform var(--ease),opacity var(--ease);}
.burger span:nth-child(2){width:70%;}

.drawer{position:fixed;inset:0;z-index:120;pointer-events:none;}
.drawer-mask{position:absolute;inset:0;background:rgba(5,9,15,.7);backdrop-filter:blur(4px);opacity:0;transition:opacity var(--ease);}
.drawer-panel{
  position:absolute;top:0;right:0;height:100%;width:82vw;max-width:360px;
  background:rgba(12,21,36,.94);backdrop-filter:blur(14px) saturate(120%);
  border-left:1px solid var(--glass-bd);
  transform:translateX(100%);transition:transform 220ms ease-out;
  padding:28px 24px;display:flex;flex-direction:column;gap:4px;
}
.drawer.open{pointer-events:auto;}
.drawer.open .drawer-mask{opacity:1;}
.drawer.open .drawer-panel{transform:translateX(0);}
.drawer-close{align-self:flex-end;font-size:24px;line-height:1;color:var(--text-mid);width:44px;height:44px;border-radius:12px;}
.drawer-close:hover{color:var(--brand-500);}
.drawer-panel a{
  font-size:18px;color:var(--text-hi);padding:14px 0;border-bottom:1px solid var(--line);
}
.drawer-panel a:hover{color:var(--brand-500);}
.drawer-panel .btn{margin-top:22px;border-bottom:0;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;border-radius:999px;padding:13px 26px;min-height:44px;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
  cursor:pointer;
}
.btn-primary{
  color:#04231E;background:var(--brand-500);border:1px solid var(--brand-500);box-shadow:var(--shadow-glow);
}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.08);box-shadow:0 0 0 1px rgba(33,230,193,.5),0 18px 44px -14px rgba(33,230,193,.65);}
.btn-primary:active{transform:translateY(0);filter:brightness(.96);}
.btn-ghost{
  color:var(--text-hi);background:transparent;border:1px solid rgba(255,255,255,.16);
}
.btn-ghost:hover{border-color:rgba(33,230,193,.6);color:var(--brand-500);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{padding:10px 20px;font-size:14px;}

/* ---------- 面包屑与文章头 ---------- */
.article-head{
  position:relative;
  padding:44px 0 8px;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.article-head::before{
  content:"";position:absolute;top:-180px;left:-80px;width:620px;height:520px;
  background:radial-gradient(circle at center,rgba(33,230,193,.16),transparent 62%);
  pointer-events:none;
}
.article-head::after{
  content:"";position:absolute;top:-120px;right:-140px;width:480px;height:420px;
  background:radial-gradient(circle at center,rgba(255,138,76,.10),transparent 64%);
  pointer-events:none;
}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-low);margin-bottom:26px;
}
.breadcrumb a{color:var(--text-low);}
.breadcrumb a:hover{color:var(--brand-500);}
.breadcrumb .sep{color:rgba(255,255,255,.18);}
.breadcrumb .current{color:var(--text-low);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-title{
  font-size:40px;line-height:1.25;color:var(--text-hi);max-width:900px;
  overflow:hidden;text-overflow:ellipsis;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:13px;color:var(--text-low);margin-top:22px;
}
.article-meta .dot{width:3px;height:3px;border-radius:50%;background:rgba(255,255,255,.22);}
.tag{
  display:inline-flex;align-items:center;
  font-size:12px;letter-spacing:.02em;color:var(--brand-500);
  border:1px solid rgba(33,230,193,.35);border-radius:999px;padding:4px 12px;
  background:rgba(33,230,193,.06);
}
.tag-muted{color:var(--text-mid);border-color:var(--glass-bd);background:transparent;}

/* ---------- 正文布局 ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);
  gap:56px;padding-top:64px;padding-bottom:96px;
}
.article-body{
  font-size:16.5px;line-height:1.9;color:var(--text-mid);max-width:800px;
}
.article-body > * + *{margin-top:1.2em;}
.article-body h2{
  position:relative;padding-left:16px;margin-top:48px;
  font-size:29px;line-height:1.3;color:var(--text-hi);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.3em;width:4px;height:1em;border-radius:2px;background:var(--brand-500);
}
.article-body h3{font-size:20px;margin-top:34px;color:var(--text-hi);}
.article-body p{color:var(--text-mid);}
.article-body strong{color:var(--text-hi);font-weight:600;}
.article-body a{color:var(--brand-500);border-bottom:1px dashed rgba(33,230,193,.5);}
.article-body a:hover{border-bottom-style:solid;}
.article-body ul,.article-body ol{margin-top:1.1em;}
.article-body ul li{position:relative;padding-left:20px;margin-top:.6em;}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:6px;height:6px;border-radius:1px;background:var(--brand-500);
}
.article-body ol{counter-reset:li;}
.article-body ol li{position:relative;padding-left:26px;margin-top:.6em;counter-increment:li;}
.article-body ol li::before{
  content:counter(li,decimal-leading-zero);position:absolute;left:0;top:0;font-size:12px;color:var(--brand-500);letter-spacing:.06em;
}
.article-body blockquote{
  margin:32px 0;padding:20px 24px;border-left:2px solid var(--brand-500);
  background:var(--glass-bg);border-radius:14px;color:var(--text-mid);
}
.article-body img{border-radius:var(--radius-img);box-shadow:inset 0 0 0 1px rgba(255,255,255,.1);margin:28px 0 10px;width:100%;}
.article-body figcaption{font-size:13px;color:var(--text-low);text-align:center;}
.article-body table{width:100%;border-collapse:collapse;margin:28px 0;font-size:15px;}
.article-body th,.article-body td{border-bottom:1px solid var(--line);padding:12px 10px;text-align:left;}
.article-body th{color:var(--text-hi);font-weight:600;font-size:14px;letter-spacing:.02em;}
.article-body code{
  font-size:14px;color:var(--brand-300);background:rgba(33,230,193,.08);
  border-radius:6px;padding:2px 6px;
}
.article-body hr{border:0;border-top:1px solid var(--line);margin:40px 0;}

/* ---------- 空态 ---------- */
.empty-state{
  border:1px solid var(--glass-bd);border-radius:var(--radius-card);
  background:var(--glass-bg);padding:56px 32px;text-align:center;
}
.empty-state .empty-icon{
  width:52px;height:52px;margin:0 auto 18px;border-radius:50%;
  border:1px solid rgba(33,230,193,.35);display:flex;align-items:center;justify-content:center;color:var(--brand-500);
}
.empty-state h2{font-size:20px;margin-bottom:10px;}
.empty-state p{font-size:15px;color:var(--text-mid);margin-bottom:22px;}

/* ---------- 文末 ---------- */
.article-foot{margin-top:64px;padding-top:32px;border-top:1px solid var(--line);}
.article-foot h3{font-size:15px;color:var(--text-mid);font-weight:600;letter-spacing:.02em;margin-bottom:14px;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px;}
.back-row{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- 侧栏 ---------- */
.article-side{position:relative;}
.side-sticky{position:sticky;top:104px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  border:1px solid var(--glass-bd);border-radius:var(--radius-card);
  background:var(--glass-bg);backdrop-filter:blur(14px) saturate(120%);
  padding:24px;box-shadow:var(--shadow-card);
}
.side-card h3{font-size:16px;margin-bottom:14px;}
.side-list{display:flex;flex-direction:column;}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:14.5px;color:var(--text-mid);padding:11px 0;border-bottom:1px solid var(--line);
  min-height:44px;
}
.side-list a:last-child{border-bottom:0;}
.side-list a:hover{color:var(--brand-500);}
.side-list .arrow{transition:transform var(--ease);color:var(--text-low);}
.side-list a:hover .arrow{transform:translateX(4px);color:var(--brand-500);}
.side-note{font-size:13.5px;color:var(--text-low);line-height:1.85;}
.side-card .btn{width:100%;margin-top:16px;}

/* ---------- 相关推荐 ---------- */
.section{padding:88px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px;flex-wrap:wrap;}
.section-head h2{font-size:30px;}
.section-head .sub{font-size:14px;color:var(--text-low);margin-top:8px;}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{
  display:flex;flex-direction:column;
  border:1px solid var(--glass-bd);border-radius:var(--radius-card);
  background:var(--glass-bg);backdrop-filter:blur(14px) saturate(120%);
  overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:rgba(255,255,255,.18);}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--ink-700);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform 300ms ease-out;}
.card:hover .card-media img{transform:scale(1.03);}
.card-media::after{content:"";position:absolute;inset:0;box-shadow:inset 0 0 0 1px rgba(255,255,255,.1);border-radius:0;}
.card-body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:12px;flex:1;}
.card-body h3{font-size:18px;line-height:1.45;}
.card-body p{font-size:14.5px;color:var(--text-mid);line-height:1.8;}
.card-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:6px;}
.card-foot .time{font-size:13px;color:var(--text-low);}
.card-foot .more{font-size:13.5px;color:var(--brand-500);display:inline-flex;align-items:center;gap:6px;}

/* ---------- CTA ---------- */
.cta-band{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,rgba(12,21,36,.65),rgba(5,9,15,.4));
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;padding:56px 0;flex-wrap:wrap;}
.cta-inner h2{font-size:28px;margin-bottom:8px;}
.cta-inner p{font-size:15px;color:var(--text-mid);}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);border-top:1px solid var(--line);margin-top:0;position:relative;z-index:1;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;padding:64px 0 44px;}
.footer-brand .logo-mark{font-size:19px;margin-bottom:16px;}
.footer-tagline{font-size:14px;color:var(--text-low);line-height:1.85;max-width:34ch;}
.footer-col h4{font-size:14px;color:var(--text-hi);margin-bottom:16px;letter-spacing:.02em;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a,.footer-links span{font-size:14px;color:var(--text-low);}
.footer-links a:hover{color:var(--brand-500);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  padding:22px 0 34px;border-top:1px solid var(--line);font-size:13px;color:var(--text-low);
}
.footer-bottom-links{display:flex;gap:22px;flex-wrap:wrap;}
.footer-bottom-links a:hover{color:var(--brand-500);}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:28px;bottom:28px;z-index:70;
  display:inline-flex;align-items:center;gap:8px;
  font-size:13.5px;color:var(--text-hi);
  background:rgba(12,21,36,.82);border:1px solid var(--glass-bd);border-radius:999px;
  padding:11px 18px;backdrop-filter:blur(12px);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity var(--ease),transform var(--ease),visibility var(--ease),border-color var(--ease);
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{border-color:rgba(33,230,193,.5);color:var(--brand-500);}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 500ms ease-out,transform 500ms ease-out;}
.reveal.in{opacity:1;transform:translateY(0);}
@media (prefers-reduced-motion:reduce){
  .reveal{transform:none;transition:opacity 400ms ease-out;}
  .btn:hover,.card:hover{transform:none;}
  html{scroll-behavior:auto;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .container{padding:0 32px;}
  .nav-menu{display:none;}
  .burger{display:flex;}
  .nav-cta{display:none;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:40px;padding-top:48px;padding-bottom:72px;}
  .article-side{order:2;}
  .side-sticky{position:static;}
  .article-title{font-size:34px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:72px 0;}
}
@media (max-width:768px){
  .container{padding:0 24px;}
  .article-title{font-size:30px;}
  .article-body{font-size:16px;}
  .article-body h2{font-size:24px;margin-top:40px;}
  .section-head h2{font-size:24px;}
  .cta-inner{padding:44px 0;}
  .cta-inner h2{font-size:23px;}
}
@media (max-width:520px){
  .container{padding:0 20px;}
  .logo-mark{font-size:17px;}
  .article-title{font-size:26px;}
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:48px 0 32px;}
  .section{padding:64px 0;}
  .breadcrumb .current{max-width:100%;white-space:normal;}
  .to-top{right:16px;bottom:16px;padding:10px 15px;}
  .btn{width:100%;}
  .cta-actions{width:100%;}
  .back-row .btn{width:100%;}
}

/* roulang page: category1 */
:root{
    --ink-950:#05090F;
    --ink-900:#080E18;
    --ink-800:#0C1524;
    --ink-700:#111E33;
    --brand-500:#21E6C1;
    --brand-600:#10BFA4;
    --brand-300:#7CF3E0;
    --accent-500:#FF8A4C;
    --text-hi:#EAF2FF;
    --text-mid:#9FB0C7;
    --text-low:#6B7C93;
    --line:rgba(255,255,255,.08);
    --glass-bg:rgba(255,255,255,.05);
    --glass-bd:rgba(255,255,255,.10);
    --r-card:20px;
    --r-big:24px;
    --r-pill:999px;
    --shadow-card:0 20px 60px -30px rgba(0,0,0,.9), inset 0 1px 0 rgba(255,255,255,.06);
    --shadow-glow:0 0 0 1px rgba(33,230,193,.35), 0 12px 40px -12px rgba(33,230,193,.55);
    --sec:112px;
    --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(--ink-950);
    color:var(--text-mid);
    font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
    font-size:16px;
    line-height:1.85;
    letter-spacing:0;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  body::before{
    content:"";
    position:fixed;
    inset:0;
    pointer-events:none;
    z-index:0;
    background-image:
      linear-gradient(rgba(255,255,255,.022) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255,255,255,.022) 1px, transparent 1px);
    background-size:64px 64px;
    mask-image:radial-gradient(circle at 50% 20%, #000 0%, transparent 76%);
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;transition:color .18s var(--ease), border-color .18s var(--ease), background-color .18s var(--ease), transform .18s var(--ease);}
  button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
  ul,ol{margin:0;padding:0;list-style:none;}
  h1,h2,h3,h4{margin:0;color:var(--text-hi);font-weight:700;letter-spacing:-.01em;}
  p{margin:0;}
  :focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px;}

  .container{
    width:100%;
    max-width:1240px;
    margin:0 auto;
    padding:0 48px;
    position:relative;
    z-index:1;
  }

  /* ---------- 导航 ---------- */
  .site-header{
    position:fixed;
    top:0;left:0;right:0;
    z-index:60;
    height:72px;
    background:transparent;
    transition:background-color .2s var(--ease), border-color .2s var(--ease), backdrop-filter .2s var(--ease);
    border-bottom:1px solid transparent;
  }
  .site-header.is-scrolled{
    background:rgba(8,14,24,.72);
    backdrop-filter:blur(14px) saturate(120%);
    -webkit-backdrop-filter:blur(14px) saturate(120%);
    border-bottom:1px solid var(--line);
  }
  .nav{
    height:72px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:32px;
  }
  .logo{display:inline-flex;align-items:center;min-height:44px;}
  .logo-mark{
    display:inline-flex;
    align-items:baseline;
    gap:2px;
    font-size:19px;
    font-weight:700;
    color:var(--text-hi);
    letter-spacing:-.01em;
    line-height:1;
  }
  .logo-brand{color:var(--brand-500);margin-right:2px;letter-spacing:.04em;}
  .logo-sub{font-size:12px;font-weight:500;color:var(--text-low);margin-left:3px;letter-spacing:.06em;}

  .nav-menu{display:flex;align-items:center;gap:32px;}
  .nav-link{
    position:relative;
    font-size:15px;
    font-weight:500;
    color:var(--text-mid);
    padding:6px 0;
    min-height:44px;
    display:inline-flex;
    align-items:center;
  }
  .nav-link::after{
    content:"";
    position:absolute;
    left:0;right:100%;
    bottom:0;
    height:1px;
    background:var(--brand-500);
    transition:right .2s var(--ease);
  }
  .nav-link:hover{color:var(--text-hi);}
  .nav-link.active{color:var(--text-hi);}
  .nav-link.active::after{right:0;}
  .nav-link.active::before{
    content:"";
    position:absolute;
    left:-12px;
    top:50%;
    width:4px;height:4px;
    margin-top:-2px;
    border-radius:50%;
    background:var(--brand-500);
  }

  .nav-actions{display:flex;align-items:center;gap:18px;}
  .nav-cta{
    font-size:14px;
    font-weight:500;
    color:var(--brand-500);
    min-height:44px;
    display:inline-flex;
    align-items:center;
    padding:0 2px;
    border-bottom:1px solid rgba(33,230,193,.35);
  }
  .nav-cta:hover{color:var(--brand-300);border-bottom-color:var(--brand-300);}
  .nav-icon{
    width:44px;height:44px;
    display:inline-flex;align-items:center;justify-content:center;
    color:var(--text-low);
    border-radius:var(--r-pill);
    border:1px solid transparent;
  }
  .nav-icon:hover{color:var(--brand-500);border-color:var(--glass-bd);background:var(--glass-bg);}

  .burger{
    display:none;
    width:44px;height:44px;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    gap:5px;
  }
  .burger span{
    display:block;
    width:20px;height:1px;
    background:var(--text-hi);
    transition:transform .2s var(--ease), opacity .2s var(--ease);
  }

  .drawer-mask{
    position:fixed;
    inset:0;
    background:rgba(5,9,15,.72);
    backdrop-filter:blur(4px);
    -webkit-backdrop-filter:blur(4px);
    opacity:0;
    pointer-events:none;
    transition:opacity .2s var(--ease);
    z-index:70;
  }
  .drawer-mask.is-open{opacity:1;pointer-events:auto;}
  .drawer{
    position:fixed;
    top:0;right:0;
    width:82vw;
    max-width:360px;
    height:100%;
    z-index:80;
    background:rgba(8,14,24,.92);
    backdrop-filter:blur(16px) saturate(120%);
    -webkit-backdrop-filter:blur(16px) saturate(120%);
    border-left:1px solid var(--glass-bd);
    padding:26px 26px 34px;
    transform:translateX(102%);
    transition:transform .26s var(--ease);
    display:flex;
    flex-direction:column;
    gap:8px;
  }
  .drawer.is-open{transform:translateX(0);}
  .drawer-head{
    display:flex;
    align-items:center;
    justify-content:space-between;
    padding-bottom:20px;
    border-bottom:1px solid var(--line);
    margin-bottom:10px;
  }
  .drawer-close{
    width:44px;height:44px;
    display:inline-flex;align-items:center;justify-content:center;
    font-size:22px;
    color:var(--text-low);
    line-height:1;
  }
  .drawer-close:hover{color:var(--brand-500);}
  .drawer-link{
    font-size:18px;
    color:var(--text-mid);
    padding:15px 0;
    border-bottom:1px solid var(--line);
    min-height:44px;
    display:flex;
    align-items:center;
  }
  .drawer-link:hover,.drawer-link.active{color:var(--brand-500);}
  .drawer-cta{
    margin-top:auto;
    text-align:center;
    justify-content:center;
  }

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    min-height:46px;
    padding:0 26px;
    border-radius:var(--r-pill);
    font-size:15px;
    font-weight:600;
    line-height:1;
    cursor:pointer;
    border:1px solid transparent;
    transition:transform .18s var(--ease), box-shadow .18s var(--ease), background-color .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease), filter .18s var(--ease);
  }
  .btn-primary{
    background:rgba(33,230,193,.12);
    color:var(--brand-300);
    border-color:rgba(33,230,193,.45);
    box-shadow:var(--shadow-glow);
  }
  .btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(33,230,193,.5), 0 18px 50px -14px rgba(33,230,193,.6);}
  .btn-primary:active{transform:translateY(0);filter:brightness(.96);}
  .btn-ghost{
    background:transparent;
    color:var(--text-hi);
    border-color:rgba(255,255,255,.16);
  }
  .btn-ghost:hover{color:var(--brand-500);border-color:rgba(33,230,193,.5);}
  .btn:disabled{opacity:.45;box-shadow:none;cursor:not-allowed;}

  /* ---------- 页头 ---------- */
  .page-hero{
    position:relative;
    padding:150px 0 78px;
    overflow:hidden;
    border-bottom:1px solid var(--line);
  }
  .page-hero::before{
    content:"";
    position:absolute;
    inset:0;
    background-image:url("/assets/images/backpic/back-1.png");
    background-size:cover;
    background-position:center;
    opacity:.34;
    filter:saturate(.9);
    z-index:0;
  }
  .page-hero::after{
    content:"";
    position:absolute;
    inset:0;
    z-index:0;
    background:
      radial-gradient(560px 340px at 18% 22%, rgba(33,230,193,.16), transparent 70%),
      radial-gradient(420px 300px at 82% 8%, rgba(255,138,76,.10), transparent 72%),
      linear-gradient(180deg, rgba(5,9,15,.78) 0%, rgba(5,9,15,.9) 62%, var(--ink-950) 100%);
  }
  .hero-inner{position:relative;z-index:1;max-width:820px;}
  .crumbs{
    font-size:13px;
    color:var(--text-low);
    display:flex;
    align-items:center;
    gap:8px;
    margin-bottom:22px;
    flex-wrap:wrap;
  }
  .crumbs a{color:var(--text-low);}
  .crumbs a:hover{color:var(--brand-500);}
  .crumbs .sep{color:rgba(255,255,255,.18);}
  .crumbs .current{color:var(--text-mid);}
  .page-hero h1{
    font-size:46px;
    line-height:1.15;
    font-weight:700;
    letter-spacing:-.01em;
    margin-bottom:18px;
  }
  .page-hero h1 .hl{color:var(--brand-500);}
  .hero-lead{
    font-size:17px;
    color:var(--text-mid);
    max-width:660px;
    line-height:1.85;
  }
  .hero-facts{
    display:flex;
    flex-wrap:wrap;
    gap:0;
    margin-top:34px;
    border-top:1px solid var(--line);
    padding-top:22px;
  }
  .hero-fact{
    font-size:13px;
    color:var(--text-mid);
    padding-right:26px;
    margin-right:26px;
    border-right:1px solid var(--line);
    line-height:1.6;
    min-height:44px;
    display:flex;
    align-items:center;
  }
  .hero-fact:last-child{border-right:0;margin-right:0;padding-right:0;}
  .hero-fact b{color:var(--brand-300);font-weight:600;margin-right:6px;}

  /* ---------- 板块 ---------- */
  .section{padding:var(--sec) 0;position:relative;z-index:1;}
  .section-sm{padding:72px 0;}
  .section-head{max-width:720px;margin-bottom:44px;}
  .eyebrow{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:12px;
    letter-spacing:.14em;
    color:var(--brand-500);
    text-transform:uppercase;
    margin-bottom:16px;
  }
  .eyebrow::before{
    content:"";
    width:18px;height:1px;
    background:var(--brand-500);
    display:block;
  }
  .section-head h2{
    font-size:32px;
    line-height:1.28;
    margin-bottom:14px;
  }
  .section-head p{font-size:16px;color:var(--text-mid);}

  /* ---------- 筛选胶囊 ---------- */
  .chips{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    margin-bottom:34px;
  }
  .chip{
    display:inline-flex;
    align-items:center;
    min-height:36px;
    padding:0 16px;
    border-radius:var(--r-pill);
    border:1px solid var(--line);
    background:rgba(255,255,255,.03);
    font-size:13px;
    letter-spacing:.02em;
    color:var(--text-mid);
    transition:color .18s var(--ease), border-color .18s var(--ease), background-color .18s var(--ease);
  }
  .chip.is-active{
    color:var(--brand-300);
    border-color:rgba(33,230,193,.5);
    background:rgba(33,230,193,.08);
  }
  .chip:hover{border-color:rgba(255,255,255,.22);color:var(--text-hi);}

  /* ---------- 文字列表 ---------- */
  .guide-wrap{
    display:grid;
    grid-template-columns:minmax(0,1fr) 300px;
    gap:48px;
    align-items:start;
  }
  .guide-list{
    border-top:1px solid var(--line);
  }
  .guide-item{border-bottom:1px solid var(--line);}
  .guide-link{
    display:grid;
    grid-template-columns:56px minmax(0,1fr) 28px;
    align-items:center;
    gap:18px;
    padding:24px 14px 24px 4px;
    border-radius:12px;
    transition:background-color .18s var(--ease);
  }
  .guide-link:hover,.guide-link:focus-visible{
    background:rgba(255,255,255,.035);
  }
  .guide-index{
    font-size:13px;
    letter-spacing:.08em;
    color:var(--text-low);
    font-variant-numeric:tabular-nums;
  }
  .guide-link:hover .guide-index{color:var(--brand-500);}
  .guide-title{
    display:block;
    font-size:19px;
    font-weight:600;
    color:var(--text-hi);
    line-height:1.5;
    transition:color .18s var(--ease);
  }
  .guide-link:hover .guide-title{color:var(--brand-500);}
  .guide-desc{
    display:block;
    font-size:15px;
    color:var(--text-mid);
    margin-top:4px;
    line-height:1.7;
  }
  .guide-arrow{
    font-size:18px;
    color:var(--text-low);
    text-align:right;
    transition:transform .18s var(--ease), color .18s var(--ease);
  }
  .guide-link:hover .guide-arrow{transform:translateX(4px);color:var(--brand-500);}

  .side-note{
    background:var(--glass-bg);
    border:1px solid var(--glass-bd);
    border-radius:var(--r-card);
    padding:26px;
    box-shadow:var(--shadow-card);
    position:sticky;
    top:104px;
  }
  .side-note h3{font-size:17px;margin-bottom:14px;}
  .side-note p{font-size:14px;color:var(--text-mid);line-height:1.8;}
  .side-points{margin:18px 0 0;display:flex;flex-direction:column;gap:10px;}
  .side-points li{
    position:relative;
    padding-left:16px;
    font-size:14px;
    color:var(--text-mid);
    line-height:1.7;
  }
  .side-points li::before{
    content:"";
    position:absolute;
    left:0;top:10px;
    width:5px;height:5px;
    background:var(--brand-500);
    border-radius:1px;
  }
  .side-link{
    display:inline-flex;
    align-items:center;
    gap:6px;
    margin-top:22px;
    font-size:14px;
    color:var(--brand-500);
    min-height:44px;
  }
  .side-link:hover{color:var(--brand-300);}

  /* ---------- 图文板块 ---------- */
  .media-block{
    display:grid;
    grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);
    gap:48px;
    align-items:center;
    background:linear-gradient(180deg, rgba(12,21,36,.72), rgba(12,21,36,.2));
    border:1px solid var(--glass-bd);
    border-radius:var(--r-big);
    padding:36px;
    box-shadow:var(--shadow-card);
  }
  .media-figure{
    position:relative;
    border-radius:16px;
    overflow:hidden;
    border:1px solid rgba(255,255,255,.1);
    aspect-ratio:16/10;
    background:var(--ink-800);
  }
  .media-figure img{width:100%;height:100%;object-fit:cover;}
  .media-body h2{font-size:30px;line-height:1.3;margin-bottom:16px;}
  .media-body > p{font-size:16px;color:var(--text-mid);margin-bottom:22px;}
  .media-list{display:flex;flex-direction:column;gap:14px;}
  .media-list li{
    position:relative;
    padding-left:18px;
    font-size:15px;
    color:var(--text-mid);
    line-height:1.75;
  }
  .media-list li::before{
    content:"";
    position:absolute;
    left:0;top:10px;
    width:6px;height:6px;
    border-radius:1px;
    background:var(--brand-500);
  }
  .media-list strong{color:var(--text-hi);font-weight:600;}

  /* ---------- 延伸阅读 ---------- */
  .related-grid{
    display:grid;
    grid-template-columns:repeat(3,minmax(0,1fr));
    gap:24px;
  }
  .related-card{
    display:flex;
    flex-direction:column;
    justify-content:space-between;
    gap:20px;
    padding:28px;
    border-radius:var(--r-card);
    border:1px solid var(--glass-bd);
    background:var(--glass-bg);
    backdrop-filter:blur(14px) saturate(120%);
    -webkit-backdrop-filter:blur(14px) saturate(120%);
    box-shadow:var(--shadow-card);
    min-height:210px;
    transition:transform .18s var(--ease), border-color .18s var(--ease);
  }
  .related-card:hover{transform:translateY(-4px);border-color:rgba(255,255,255,.18);}
  .related-card h3{font-size:18px;margin-bottom:10px;}
  .related-card p{font-size:15px;color:var(--text-mid);line-height:1.75;}
  .related-more{
    display:inline-flex;
    align-items:center;
    gap:6px;
    font-size:14px;
    color:var(--brand-500);
    min-height:44px;
  }
  .related-card:hover .related-more{color:var(--brand-300);}

  /* ---------- CTA ---------- */
  .cta-band{
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
    background:linear-gradient(180deg, rgba(12,21,36,.5), rgba(5,9,15,.1));
  }
  .cta-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:40px;
    padding:56px 0;
    flex-wrap:wrap;
  }
  .cta-inner h2{font-size:28px;line-height:1.3;margin-bottom:10px;}
  .cta-inner p{font-size:15px;color:var(--text-mid);}
  .cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
  .cta-note{
    font-size:13px;
    color:var(--text-low);
    margin-top:14px;
  }
  .cta-note a{color:var(--text-low);text-decoration:underline;text-decoration-style:dotted;text-underline-offset:3px;}
  .cta-note a:hover{color:var(--brand-500);}

  /* ---------- 页脚 ---------- */
  .site-footer{
    background:var(--ink-900);
    border-top:1px solid var(--line);
    padding:72px 0 32px;
    position:relative;
    z-index:1;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.6fr 1fr 1fr 1.2fr;
    gap:40px;
    padding-bottom:48px;
    border-bottom:1px solid var(--line);
  }
  .footer-brand .logo-mark{font-size:20px;}
  .footer-tagline{
    font-size:14px;
    color:var(--text-mid);
    margin-top:16px;
    max-width:300px;
    line-height:1.8;
  }
  .footer-col h4{
    font-size:14px;
    color:var(--text-hi);
    margin-bottom:18px;
    letter-spacing:.02em;
  }
  .footer-links{display:flex;flex-direction:column;gap:12px;}
  .footer-links a,.footer-links span{
    font-size:14px;
    color:var(--text-mid);
    line-height:1.7;
  }
  .footer-links a:hover{color:var(--brand-500);}
  .footer-bottom{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:20px;
    padding-top:26px;
    flex-wrap:wrap;
    font-size:13px;
    color:var(--text-low);
  }
  .footer-bottom-links{display:flex;gap:22px;flex-wrap:wrap;}
  .footer-bottom-links a{color:var(--text-low);}
  .footer-bottom-links a:hover{color:var(--brand-500);}

  /* ---------- 动画 ---------- */
  .reveal{opacity:0;transform:translateY(12px);animation:revealIn .5s var(--ease) forwards;}
  @keyframes revealIn{to{opacity:1;transform:translateY(0);}}
  .d1{animation-delay:.08s;}
  .d2{animation-delay:.16s;}
  .d3{animation-delay:.24s;}

  /* ---------- 响应式 ---------- */
  @media (max-width:1280px){
    .container{padding:0 40px;}
  }
  @media (max-width:1024px){
    :root{--sec:88px;}
    .container{padding:0 32px;}
    .nav-menu{display:none;}
    .burger{display:flex;}
    .guide-wrap{grid-template-columns:minmax(0,1fr);gap:36px;}
    .side-note{position:static;}
    .media-block{grid-template-columns:minmax(0,1fr);gap:32px;padding:28px;}
    .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
    .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
    .page-hero h1{font-size:38px;}
    .media-body h2{font-size:26px;}
  }
  @media (max-width:768px){
    :root{--sec:64px;}
    .container{padding:0 20px;}
    .page-hero{padding:126px 0 56px;}
    .page-hero h1{font-size:31px;}
    .hero-lead{font-size:16px;}
    .hero-facts{flex-direction:column;gap:0;padding-top:18px;}
    .hero-fact{
      border-right:0;
      padding:12px 0;
      margin-right:0;
      border-bottom:1px solid var(--line);
      width:100%;
    }
    .hero-fact:last-child{border-bottom:0;}
    .section-head h2{font-size:26px;}
    .guide-link{grid-template-columns:40px minmax(0,1fr) 20px;gap:12px;padding:20px 8px 20px 0;}
    .guide-title{font-size:17px;}
    .guide-desc{font-size:14px;}
    .related-grid{grid-template-columns:minmax(0,1fr);}
    .cta-inner{padding:44px 0;gap:26px;}
    .cta-inner h2{font-size:24px;}
    .cta-actions{width:100%;}
    .cta-actions .btn{flex:1 1 auto;}
    .footer-grid{grid-template-columns:minmax(0,1fr);gap:32px;padding-bottom:36px;}
    .footer-bottom{flex-direction:column;align-items:flex-start;}
    .nav-cta{display:none;}
  }
  @media (max-width:520px){
    .page-hero h1{font-size:28px;}
    .media-block{padding:22px;}
    .related-card{padding:22px;min-height:auto;}
    .logo-mark{font-size:17px;}
  }
  @media (prefers-reduced-motion:reduce){
    *{animation:none !important;transition-duration:.01ms !important;}
    .reveal{opacity:1;transform:none;}
  }

/* roulang page: category2 */
:root{
    --ink-950:#05090F;
    --ink-900:#080E18;
    --ink-800:#0C1524;
    --ink-700:#111E33;
    --brand-500:#21E6C1;
    --brand-600:#10BFA4;
    --brand-300:#7CF3E0;
    --accent-500:#FF8A4C;
    --text-hi:#EAF2FF;
    --text-mid:#9FB0C7;
    --text-low:#6B7C93;
    --line:rgba(255,255,255,.08);
    --line-strong:rgba(255,255,255,.18);
    --glass-bg:rgba(255,255,255,.05);
    --glass-bd:rgba(255,255,255,.10);
    --r-card:20px;
    --r-lg:24px;
    --r-btn:999px;
    --r-img:16px;
    --shadow-card:0 20px 60px -30px rgba(0,0,0,.9), inset 0 1px 0 rgba(255,255,255,.06);
    --shadow-glow:0 0 0 1px rgba(33,230,193,.35), 0 12px 40px -12px rgba(33,230,193,.55);
    --sect:112px;
    --ease:cubic-bezier(.22,.61,.36,1);
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    background:var(--ink-950);
    color:var(--text-mid);
    font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  body::before{
    content:"";
    position:fixed;
    inset:0;
    background-image:
      linear-gradient(rgba(255,255,255,.024) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255,255,255,.024) 1px, transparent 1px);
    background-size:64px 64px;
    pointer-events:none;
    z-index:0;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button,input,textarea,select{font:inherit;color:inherit;}
  h1,h2,h3,h4{margin:0;color:var(--text-hi);font-weight:700;letter-spacing:-.01em;}
  p{margin:0;}
  ul{margin:0;padding:0;list-style:none;}
  :focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px;}

  .container{
    width:100%;
    max-width:1240px;
    margin:0 auto;
    padding:0 48px;
    position:relative;
    z-index:2;
  }

  /* ---------- Header / Nav ---------- */
  .site-header{
    position:fixed;
    top:0;left:0;right:0;
    z-index:60;
    background:transparent;
    border-bottom:1px solid transparent;
    transition:background .2s var(--ease), border-color .2s var(--ease), backdrop-filter .2s var(--ease);
  }
  .site-header.is-scrolled{
    background:rgba(8,14,24,.72);
    backdrop-filter:blur(14px) saturate(120%);
    -webkit-backdrop-filter:blur(14px) saturate(120%);
    border-bottom-color:var(--line);
  }
  .nav{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:24px;
    height:72px;
  }
  .logo{display:inline-flex;align-items:center;min-height:44px;}
  .logo-mark{
    display:inline-flex;
    align-items:baseline;
    gap:1px;
    font-size:19px;
    font-weight:700;
    color:var(--text-hi);
    letter-spacing:-.01em;
  }
  .logo-brand{
    color:var(--brand-500);
    font-weight:800;
    letter-spacing:.02em;
    margin-right:2px;
  }
  .logo-sub{
    font-size:11px;
    font-weight:500;
    color:var(--text-low);
    letter-spacing:.14em;
    margin-left:5px;
    align-self:center;
  }
  .nav-menu{
    display:flex;
    align-items:center;
    gap:34px;
  }
  .nav-link{
    position:relative;
    display:inline-flex;
    align-items:center;
    height:72px;
    font-size:15px;
    font-weight:500;
    color:var(--text-mid);
    transition:color .18s var(--ease);
  }
  .nav-link::after{
    content:"";
    position:absolute;
    left:50%;
    bottom:18px;
    width:4px;height:4px;
    border-radius:50%;
    background:var(--brand-500);
    transform:translateX(-50%) scale(0);
    opacity:0;
    transition:transform .2s var(--ease), opacity .2s var(--ease);
  }
  .nav-link:hover{color:var(--text-hi);}
  .nav-link.active{color:var(--text-hi);}
  .nav-link.active::after{transform:translateX(-50%) scale(1);opacity:1;}
  .nav-link.active::before{
    content:"";
    position:absolute;
    left:0;right:0;bottom:22px;
    height:1px;
    background:linear-gradient(90deg,transparent,rgba(33,230,193,.75),transparent);
  }
  .nav-actions{display:flex;align-items:center;gap:14px;}
  .nav-cta{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    min-height:44px;
    padding:0 20px;
    border-radius:var(--r-btn);
    border:1px solid rgba(33,230,193,.45);
    color:var(--brand-300);
    font-size:14px;
    font-weight:600;
    letter-spacing:.02em;
    background:rgba(33,230,193,.06);
    transition:background .18s var(--ease), color .18s var(--ease), transform .18s var(--ease), box-shadow .18s var(--ease);
  }
  .nav-cta:hover{background:rgba(33,230,193,.14);color:#fff;transform:translateY(-1px);box-shadow:0 10px 30px -14px rgba(33,230,193,.6);}
  .nav-cta:active{transform:translateY(0);}
  .nav-icon{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:44px;height:44px;
    border-radius:50%;
    border:1px solid var(--glass-bd);
    color:var(--text-mid);
    transition:color .18s var(--ease), border-color .18s var(--ease), background .18s var(--ease);
  }
  .nav-icon:hover{color:var(--brand-300);border-color:rgba(33,230,193,.4);background:rgba(33,230,193,.06);}
  .burger{
    display:none;
    width:44px;height:44px;
    border:1px solid var(--glass-bd);
    border-radius:12px;
    background:transparent;
    cursor:pointer;
    padding:0;
    align-items:center;
    justify-content:center;
    flex-direction:column;
    gap:5px;
    transition:border-color .18s var(--ease);
  }
  .burger span{display:block;width:18px;height:1.5px;background:var(--text-hi);border-radius:2px;}
  .burger:hover{border-color:rgba(33,230,193,.4);}

  .drawer-mask{
    position:fixed;inset:0;
    background:rgba(5,9,15,.7);
    backdrop-filter:blur(4px);
    opacity:0;visibility:hidden;
    transition:opacity .22s var(--ease), visibility .22s var(--ease);
    z-index:70;
  }
  .drawer-mask.is-open{opacity:1;visibility:visible;}
  .drawer{
    position:fixed;
    top:0;right:0;
    width:82vw;
    max-width:360px;
    height:100%;
    background:rgba(12,21,36,.92);
    backdrop-filter:blur(18px) saturate(120%);
    -webkit-backdrop-filter:blur(18px) saturate(120%);
    border-left:1px solid var(--glass-bd);
    transform:translateX(100%);
    transition:transform .26s var(--ease);
    z-index:80;
    display:flex;
    flex-direction:column;
    padding:26px 24px 32px;
  }
  .drawer.is-open{transform:translateX(0);}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
  .drawer-close{
    width:44px;height:44px;
    background:transparent;border:none;cursor:pointer;
    color:var(--text-mid);
    font-size:22px;line-height:1;
    border-radius:12px;
    transition:color .18s var(--ease);
  }
  .drawer-close:hover{color:var(--brand-300);}
  .drawer-nav{display:flex;flex-direction:column;}
  .drawer-nav a{
    font-size:19px;
    font-weight:600;
    color:var(--text-hi);
    padding:18px 0;
    border-bottom:1px solid var(--line);
    transition:color .18s var(--ease);
  }
  .drawer-nav a:hover,.drawer-nav a.active{color:var(--brand-300);}
  .drawer-cta{margin-top:auto;padding-top:22px;}

  /* ---------- Buttons ---------- */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    min-height:48px;
    padding:0 26px;
    border-radius:var(--r-btn);
    font-size:15px;
    font-weight:600;
    letter-spacing:.02em;
    cursor:pointer;
    border:1px solid transparent;
    transition:transform .18s var(--ease), box-shadow .18s var(--ease), background .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease), filter .18s var(--ease);
  }
  .btn-primary{
    background:linear-gradient(135deg, rgba(33,230,193,.22), rgba(33,230,193,.08));
    border-color:rgba(33,230,193,.5);
    color:var(--brand-300);
    box-shadow:var(--shadow-glow);
    animation:pulseGlow 3.6s ease-in-out infinite;
  }
  .btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);}
  .btn-primary:active{transform:translateY(0);filter:brightness(.96);}
  .btn-ghost{
    background:transparent;
    border-color:rgba(255,255,255,.16);
    color:var(--text-hi);
  }
  .btn-ghost:hover{border-color:rgba(33,230,193,.5);color:var(--brand-300);}
  .btn:disabled{opacity:.45;box-shadow:none;animation:none;cursor:not-allowed;}
  @keyframes pulseGlow{
    0%,100%{box-shadow:0 0 0 1px rgba(33,230,193,.35), 0 12px 40px -12px rgba(33,230,193,.5);}
    50%{box-shadow:0 0 0 1px rgba(33,230,193,.5), 0 16px 46px -12px rgba(33,230,193,.72);}
  }

  /* ---------- Page hero (窄栏居中) ---------- */
  .page-hero{
    position:relative;
    padding:172px 0 96px;
    isolation:isolate;
    overflow:hidden;
    border-bottom:1px solid var(--line);
  }
  .page-hero::before{
    content:"";
    position:absolute;inset:0;
    background-image:url('/assets/images/backpic/back-2.webp');
    background-size:cover;
    background-position:center;
    opacity:.34;
    z-index:-2;
  }
  .page-hero::after{
    content:"";
    position:absolute;inset:0;
    background:
      radial-gradient(560px 320px at 22% 18%, rgba(33,230,193,.16), transparent 70%),
      radial-gradient(460px 300px at 82% 78%, rgba(255,138,76,.09), transparent 72%),
      linear-gradient(180deg, rgba(5,9,15,.86), rgba(5,9,15,.94));
    z-index:-1;
  }
  .page-hero-inner{
    max-width:720px;
    margin:0 auto;
    text-align:center;
  }
  .crumb{
    display:flex;
    align-items:center;
    justify-content:center;
    gap:10px;
    font-size:13px;
    color:var(--text-low);
    margin-bottom:22px;
  }
  .crumb a{color:var(--text-mid);transition:color .18s var(--ease);}
  .crumb a:hover{color:var(--brand-300);}
  .crumb .sep{color:rgba(255,255,255,.22);}
  .crumb .current{color:var(--text-low);}
  .page-hero h1{
    font-size:46px;
    line-height:1.16;
    margin-bottom:18px;
  }
  .page-hero h1 .hl{color:var(--brand-500);}
  .page-hero .lede{
    font-size:17px;
    line-height:1.85;
    color:var(--text-mid);
    max-width:620px;
    margin:0 auto;
  }
  .hero-tags{
    display:flex;
    flex-wrap:wrap;
    justify-content:center;
    gap:10px;
    margin-top:30px;
  }
  .tag{
    display:inline-flex;
    align-items:center;
    gap:6px;
    padding:6px 15px;
    border-radius:var(--r-btn);
    border:1px solid var(--glass-bd);
    background:rgba(255,255,255,.03);
    font-size:12.5px;
    letter-spacing:.02em;
    color:var(--text-mid);
  }
  .tag.is-on{border-color:rgba(33,230,193,.45);color:var(--brand-300);background:rgba(33,230,193,.07);}
  .tag .dot{width:5px;height:5px;border-radius:50%;background:var(--brand-500);}

  /* ---------- Sections ---------- */
  .section{padding:var(--sect) 0;}
  .section-tight{padding:76px 0;}
  .sec-head{max-width:660px;margin-bottom:52px;}
  .sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
  .sec-kicker{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:12.5px;
    letter-spacing:.16em;
    color:var(--brand-300);
    text-transform:uppercase;
    margin-bottom:16px;
  }
  .sec-kicker::before{content:"";width:20px;height:1px;background:rgba(33,230,193,.6);}
  .sec-head h2{font-size:32px;line-height:1.3;margin-bottom:14px;}
  .sec-head p{font-size:16px;color:var(--text-mid);}

  /* ---------- Service cards (7/5 错位) ---------- */
  .svc-grid{
    display:grid;
    grid-template-columns:7fr 5fr;
    gap:30px;
    align-items:start;
  }
  .svc-col{display:flex;flex-direction:column;gap:30px;}
  .svc-col.offset{margin-top:64px;}
  .svc-card{
    position:relative;
    border:1px solid var(--glass-bd);
    border-radius:var(--r-lg);
    background:linear-gradient(180deg, rgba(255,255,255,.055), rgba(255,255,255,.02));
    backdrop-filter:blur(14px) saturate(120%);
    -webkit-backdrop-filter:blur(14px) saturate(120%);
    box-shadow:var(--shadow-card);
    overflow:hidden;
    transition:transform .2s var(--ease), border-color .2s var(--ease), box-shadow .2s var(--ease);
  }
  .svc-card:hover{transform:translateY(-4px);border-color:var(--line-strong);}
  .svc-thumb{aspect-ratio:16/10;overflow:hidden;border-bottom:1px solid var(--line);}
  .svc-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease);}
  .svc-card:hover .svc-thumb img{transform:scale(1.03);}
  .svc-body{padding:28px 30px 30px;}
  .card-icon{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    width:40px;height:40px;
    border-radius:12px;
    border:1px solid rgba(33,230,193,.28);
    background:rgba(33,230,193,.07);
    color:var(--brand-300);
    margin-bottom:18px;
  }
  .svc-body h3{font-size:20px;margin-bottom:12px;}
  .svc-body p{font-size:15.5px;line-height:1.85;color:var(--text-mid);margin-bottom:18px;}
  .dot-list{display:flex;flex-direction:column;gap:10px;margin-bottom:20px;}
  .dot-list li{
    position:relative;
    padding-left:18px;
    font-size:14.5px;
    line-height:1.7;
    color:var(--text-mid);
  }
  .dot-list li::before{
    content:"";
    position:absolute;
    left:0;top:9px;
    width:6px;height:6px;
    border-radius:1px;
    background:var(--brand-500);
    opacity:.85;
  }
  .arrow-link{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:14px;
    font-weight:600;
    color:var(--brand-300);
    min-height:44px;
    transition:gap .18s var(--ease), color .18s var(--ease);
  }
  .arrow-link:hover{gap:13px;color:#fff;}
  .svc-note{
    display:flex;
    align-items:flex-start;
    gap:14px;
    padding:22px 24px;
    border:1px solid var(--glass-bd);
    border-radius:var(--r-card);
    background:rgba(255,255,255,.03);
  }
  .svc-note .bar{width:2px;align-self:stretch;background:linear-gradient(180deg,var(--brand-500),rgba(33,230,193,.1));border-radius:2px;}
  .svc-note p{font-size:14.5px;line-height:1.8;color:var(--text-mid);}

  /* ---------- Stats band ---------- */
  .stats{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    border:1px solid var(--glass-bd);
    border-radius:var(--r-lg);
    background:linear-gradient(180deg, rgba(255,255,255,.055), rgba(255,255,255,.02));
    backdrop-filter:blur(14px) saturate(120%);
    -webkit-backdrop-filter:blur(14px) saturate(120%);
    box-shadow:var(--shadow-card);
    overflow:hidden;
  }
  .stat{padding:34px 28px;border-left:1px solid var(--line);}
  .stat:first-child{border-left:none;}
  .stat-num{
    font-size:46px;
    line-height:1;
    font-weight:700;
    letter-spacing:-.02em;
    color:var(--brand-300);
    font-feature-settings:"tnum";
  }
  .stat-num.accent{color:var(--accent-500);}
  .stat-num small{font-size:15px;font-weight:500;margin-left:4px;color:var(--text-mid);}
  .stat-label{margin-top:12px;font-size:13px;letter-spacing:.02em;color:var(--text-low);}

  /* ---------- Steps ---------- */
  .steps{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:0;
    border-top:1px solid var(--line);
    padding-top:38px;
  }
  .step{position:relative;padding-right:28px;}
  .step:not(:last-child)::after{
    content:"";
    position:absolute;
    left:24px;right:14px;top:7px;
    height:1px;
    background:linear-gradient(90deg, rgba(33,230,193,.5), rgba(255,255,255,.08));
  }
  .step-dot{
    position:relative;
    width:15px;height:15px;
    border-radius:50%;
    background:var(--brand-500);
    box-shadow:0 0 0 5px rgba(33,230,193,.12);
    margin-bottom:22px;
  }
  .step-no{
    font-size:12px;
    letter-spacing:.16em;
    color:var(--text-low);
    margin-bottom:8px;
  }
  .step h3{font-size:17px;margin-bottom:8px;}
  .step p{font-size:14px;line-height:1.75;color:var(--text-mid);}

  /* ---------- Assure split ---------- */
  .assure{
    display:grid;
    grid-template-columns:5fr 7fr;
    gap:34px;
    align-items:center;
  }
  .assure-copy h2{font-size:30px;line-height:1.32;margin-bottom:16px;}
  .assure-copy p{font-size:16px;line-height:1.9;color:var(--text-mid);}
  .assure-list{
    border:1px solid var(--glass-bd);
    border-radius:var(--r-lg);
    background:rgba(255,255,255,.03);
    padding:8px 30px;
  }
  .assure-list li{
    display:flex;
    gap:18px;
    padding:22px 0;
    border-bottom:1px solid var(--line);
  }
  .assure-list li:last-child{border-bottom:none;}
  .assure-list .idx{
    flex:0 0 auto;
    font-size:13px;
    letter-spacing:.12em;
    color:var(--brand-300);
    padding-top:3px;
  }
  .assure-list h3{font-size:16.5px;margin-bottom:6px;}
  .assure-list p{font-size:14.5px;line-height:1.75;color:var(--text-mid);}

  /* ---------- Form ---------- */
  .apply{
    display:grid;
    grid-template-columns:6fr 6fr;
    gap:34px;
    align-items:start;
  }
  .apply-side h2{font-size:30px;line-height:1.32;margin-bottom:16px;}
  .apply-side p{font-size:16px;line-height:1.9;color:var(--text-mid);margin-bottom:22px;}
  .side-points li{
    position:relative;
    padding-left:18px;
    font-size:14.5px;
    line-height:1.8;
    color:var(--text-mid);
    margin-bottom:12px;
  }
  .side-points li::before{
    content:"";
    position:absolute;left:0;top:10px;
    width:6px;height:6px;border-radius:1px;
    background:var(--brand-500);
  }
  .form-card{
    border:1px solid var(--glass-bd);
    border-radius:var(--r-lg);
    background:linear-gradient(180deg, rgba(255,255,255,.055), rgba(255,255,255,.02));
    backdrop-filter:blur(16px) saturate(120%);
    -webkit-backdrop-filter:blur(16px) saturate(120%);
    box-shadow:var(--shadow-card);
    padding:32px;
  }
  .field{margin-bottom:20px;}
  .field label{display:block;font-size:13.5px;color:var(--text-hi);margin-bottom:9px;letter-spacing:.02em;}
  .field input,.field textarea{
    width:100%;
    background:rgba(5,9,15,.55);
    border:1px solid rgba(255,255,255,.12);
    border-radius:12px;
    padding:13px 15px;
    font-size:15px;
    color:var(--text-hi);
    transition:border-color .18s var(--ease), box-shadow .18s var(--ease), background .18s var(--ease);
  }
  .field textarea{min-height:104px;resize:vertical;line-height:1.75;}
  .field input::placeholder,.field textarea::placeholder{color:var(--text-low);}
  .field input:focus,.field textarea:focus{
    outline:none;
    border-color:rgba(33,230,193,.6);
    box-shadow:0 0 0 4px rgba(33,230,193,.15);
    background:rgba(5,9,15,.8);
  }
  .field.has-error input,.field.has-error textarea{border-color:rgba(255,138,76,.75);}
  .field-msg{display:none;font-size:12px;color:var(--accent-500);margin-top:7px;}
  .field.has-error .field-msg{display:block;}
  .check{
    display:flex;
    gap:11px;
    align-items:flex-start;
    font-size:13.5px;
    line-height:1.7;
    color:var(--text-mid);
    margin:6px 0 22px;
    cursor:pointer;
  }
  .check input{
    appearance:none;
    -webkit-appearance:none;
    flex:0 0 auto;
    width:18px;height:18px;
    margin-top:3px;
    border-radius:5px;
    border:1px solid rgba(255,255,255,.22);
    background:rgba(5,9,15,.6);
    cursor:pointer;
    position:relative;
    transition:border-color .16s var(--ease), background .16s var(--ease);
  }
  .check input:checked{border-color:var(--brand-500);background:rgba(33,230,193,.18);}
  .check input:checked::after{
    content:"";
    position:absolute;
    left:5px;top:1.5px;
    width:5px;height:10px;
    border-right:1.6px solid var(--brand-300);
    border-bottom:1.6px solid var(--brand-300);
    transform:rotate(42deg);
  }
  .form-foot{
    margin-top:20px;
    font-size:12.5px;
    line-height:1.8;
    color:var(--text-low);
  }
  .form-foot a{color:var(--text-mid);text-decoration:underline;text-decoration-style:dashed;text-underline-offset:3px;transition:color .18s var(--ease);}
  .form-foot a:hover{color:var(--brand-300);}
  .form-status{
    display:none;
    margin-top:16px;
    font-size:13.5px;
    color:var(--brand-300);
  }
  .form-status.is-on{display:block;}
  .btn-loading{opacity:.7;pointer-events:none;}
  .spinner{
    display:inline-block;
    width:14px;height:14px;
    border-radius:50%;
    border:1.6px solid rgba(33,230,193,.3);
    border-top-color:var(--brand-300);
    animation:spin .7s linear infinite;
  }
  @keyframes spin{to{transform:rotate(360deg);}}

  /* ---------- CTA band ---------- */
  .cta-band{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:28px;
    padding:34px 0;
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
  }
  .cta-band h2{font-size:24px;margin-bottom:8px;}
  .cta-band p{font-size:15px;color:var(--text-mid);}
  .cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

  /* ---------- Footer ---------- */
  .site-footer{
    background:var(--ink-900);
    border-top:1px solid var(--line);
    position:relative;
    z-index:2;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.6fr 1fr 1fr 1.2fr;
    gap:40px;
    padding:72px 0 52px;
  }
  .footer-brand .logo-mark{font-size:20px;}
  .footer-tagline{
    margin-top:16px;
    font-size:14px;
    line-height:1.8;
    color:var(--text-mid);
    max-width:320px;
  }
  .footer-col h4{font-size:14px;color:var(--text-hi);margin-bottom:18px;letter-spacing:.02em;}
  .footer-links{display:flex;flex-direction:column;gap:12px;}
  .footer-links a,.footer-links span{
    font-size:14px;
    color:var(--text-mid);
    line-height:1.7;
    transition:color .18s var(--ease);
  }
  .footer-links a:hover{color:var(--brand-300);}
  .footer-bottom{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:20px;
    padding:22px 0 30px;
    border-top:1px solid var(--line);
    font-size:12.5px;
    color:var(--text-low);
    flex-wrap:wrap;
  }
  .footer-bottom-links{display:flex;gap:20px;flex-wrap:wrap;}
  .footer-bottom-links a{color:var(--text-low);transition:color .18s var(--ease);}
  .footer-bottom-links a:hover{color:var(--brand-300);}

  /* ---------- Reveal ---------- */
  .reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease), transform .5s var(--ease);}
  .reveal.in{opacity:1;transform:none;}

  @media (prefers-reduced-motion: reduce){
    .reveal{transform:none;transition:opacity .4s linear;}
    .btn-primary{animation:none;}
    *{scroll-behavior:auto !important;}
    .svc-card:hover{transform:none;}
    .svc-card:hover .svc-thumb img{transform:none;}
  }

  /* ---------- Responsive ---------- */
  @media (max-width:1024px){
    :root{--sect:88px;}
    .container{padding:0 32px;}
    .nav-menu{gap:24px;}
    .page-hero{padding:152px 0 80px;}
    .page-hero h1{font-size:38px;}
    .svc-grid{grid-template-columns:1fr;gap:26px;}
    .svc-col.offset{margin-top:0;}
    .stats{grid-template-columns:repeat(2,1fr);}
    .stat{border-top:1px solid var(--line);}
    .stat:nth-child(1),.stat:nth-child(2){border-top:none;}
    .stat:nth-child(odd){border-left:none;}
    .assure{grid-template-columns:1fr;gap:26px;}
    .apply{grid-template-columns:1fr;gap:26px;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  }
  @media (max-width:768px){
    .container{padding:0 20px;}
    .nav-menu{display:none;}
    .nav-cta{display:none;}
    .burger{display:inline-flex;}
    .page-hero{padding:132px 0 64px;}
    .page-hero h1{font-size:32px;}
    :root{--sect:64px;}
    .section-tight{padding:56px 0;}
    .sec-head h2{font-size:26px;}
    .steps{grid-template-columns:1fr;gap:26px;padding-top:26px;}
    .step{padding-right:0;padding-left:30px;border-left:1px solid rgba(33,230,193,.28);}
    .step:not(:last-child)::after{display:none;}
    .step-dot{position:absolute;left:-8px;top:2px;margin-bottom:0;}
    .assure-copy h2,.apply-side h2{font-size:25px;}
    .cta-band{flex-direction:column;align-items:flex-start;padding:30px 0;}
    .form-card{padding:26px 22px;}
    .footer-grid{grid-template-columns:1fr;gap:30px;padding:56px 0 40px;}
    .footer-bottom{flex-direction:column;align-items:flex-start;}
  }
  @media (max-width:520px){
    .page-hero h1{font-size:29px;}
    .stats{grid-template-columns:1fr;}
    .stat{border-left:none;}
    .stat:nth-child(2){border-top:1px solid var(--line);}
    .stat-num{font-size:40px;}
    .hero-tags{gap:8px;}
    .tag{font-size:12px;padding:6px 12px;}
    .svc-body{padding:24px 22px 26px;}
    .assure-list{padding:6px 22px;}
    .cta-actions{width:100%;}
    .cta-actions .btn{width:100%;}
  }

/* roulang page: category3 */
*, *::before, *::after { box-sizing: border-box; }

  :root {
    --ink-950: #05090F;
    --ink-900: #080E18;
    --ink-800: #0C1524;
    --ink-700: #111E33;
    --brand-500: #21E6C1;
    --brand-600: #10BFA4;
    --brand-300: #7CF3E0;
    --accent-500: #FF8A4C;
    --text-hi: #EAF2FF;
    --text-mid: #9FB0C7;
    --text-low: #6B7C93;
    --line: rgba(255,255,255,.08);
    --line-strong: rgba(255,255,255,.16);
    --glass-bg: rgba(255,255,255,.05);
    --glass-bd: rgba(255,255,255,.10);
    --r-sm: 12px;
    --r-md: 16px;
    --r-lg: 20px;
    --r-xl: 24px;
    --r-pill: 999px;
    --shadow-card: 0 20px 60px -30px rgba(0,0,0,.9), inset 0 1px 0 rgba(255,255,255,.06);
    --shadow-glow: 0 0 0 1px rgba(33,230,193,.35), 0 12px 40px -12px rgba(33,230,193,.55);
    --sec: 112px;
    --ease: cubic-bezier(.4,0,.2,1);
  }

  html { scroll-behavior: smooth; }

  body {
    margin: 0;
    background: var(--ink-950);
    color: var(--text-mid);
    font-family: 'Inter', -apple-system, 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', system-ui, sans-serif;
    font-size: 16px;
    line-height: 1.85;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    overflow-x: hidden;
  }

  h1, h2, h3, h4 { color: var(--text-hi); margin: 0; line-height: 1.25; letter-spacing: -0.01em; }
  p { margin: 0; }
  a { color: inherit; text-decoration: none; }
  img { display: block; max-width: 100%; }
  button { font-family: inherit; }
  ul { margin: 0; padding: 0; list-style: none; }

  a:focus-visible,
  button:focus-visible,
  input:focus-visible,
  textarea:focus-visible {
    outline: 2px solid var(--brand-500);
    outline-offset: 2px;
    border-radius: 6px;
  }

  .container {
    width: 100%;
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 48px;
  }

  /* ============ 导航 ============ */
  .site-header {
    position: fixed;
    inset: 0 0 auto 0;
    z-index: 90;
    height: 72px;
    display: flex;
    align-items: center;
    background: transparent;
    transition: background .2s var(--ease), border-color .2s var(--ease), backdrop-filter .2s var(--ease);
    border-bottom: 1px solid transparent;
  }
  .site-header.scrolled {
    background: rgba(8,14,24,.72);
    backdrop-filter: blur(14px) saturate(120%);
    -webkit-backdrop-filter: blur(14px) saturate(120%);
    border-bottom-color: var(--line);
  }
  .nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    width: 100%;
  }
  .logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    min-height: 44px;
  }
  .logo-mark {
    display: inline-flex;
    align-items: baseline;
    gap: 2px;
    font-size: 19px;
    font-weight: 700;
    color: var(--text-hi);
    letter-spacing: .01em;
    white-space: nowrap;
  }
  .logo-brand {
    color: var(--brand-500);
    font-weight: 800;
    letter-spacing: .04em;
    margin-right: 3px;
  }
  .logo-sub {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-low);
    margin-left: 3px;
    letter-spacing: .08em;
  }
  .nav-menu {
    display: flex;
    align-items: center;
    gap: 34px;
  }
  .nav-link {
    position: relative;
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-mid);
    transition: color .18s var(--ease);
  }
  .nav-link::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 8px;
    height: 1px;
    background: var(--brand-500);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .2s var(--ease);
  }
  .nav-link:hover { color: var(--text-hi); }
  .nav-link.active { color: var(--text-hi); }
  .nav-link.active::after { transform: scaleX(1); }

  .nav-actions { display: flex; align-items: center; gap: 18px; }
  .nav-cta {
    display: inline-flex;
    align-items: center;
    min-height: 40px;
    padding: 0 18px;
    border-radius: var(--r-pill);
    border: 1px solid rgba(33,230,193,.38);
    color: var(--brand-300);
    font-size: 14px;
    font-weight: 600;
    transition: background .18s var(--ease), color .18s var(--ease), transform .18s var(--ease), box-shadow .18s var(--ease);
  }
  .nav-cta:hover {
    background: rgba(33,230,193,.10);
    color: var(--text-hi);
    transform: translateY(-1px);
    box-shadow: 0 12px 32px -16px rgba(33,230,193,.6);
  }
  .nav-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--r-pill);
    color: var(--text-mid);
    border: 1px solid transparent;
    transition: color .18s var(--ease), border-color .18s var(--ease);
  }
  .nav-icon:hover { color: var(--brand-300); border-color: var(--line-strong); }

  .burger {
    display: none;
    width: 44px;
    height: 44px;
    padding: 0;
    background: none;
    border: 0;
    cursor: pointer;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
  }
  .burger span {
    display: block;
    width: 20px;
    height: 1.5px;
    background: var(--text-mid);
    transition: background .18s var(--ease);
  }
  .burger:hover span { background: var(--brand-500); }

  /* 抽屉 */
  .drawer {
    position: fixed;
    inset: 0;
    z-index: 120;
    background: rgba(5,9,15,.7);
    backdrop-filter: blur(4px);
    opacity: 0;
    pointer-events: none;
    transition: opacity .22s var(--ease);
  }
  .drawer.open { opacity: 1; pointer-events: auto; }
  .drawer-panel {
    position: absolute;
    top: 0;
    right: 0;
    width: 82vw;
    max-width: 340px;
    height: 100%;
    padding: 22px 24px 32px;
    background: rgba(12,21,36,.94);
    backdrop-filter: blur(16px) saturate(120%);
    -webkit-backdrop-filter: blur(16px) saturate(120%);
    border-left: 1px solid var(--glass-bd);
    transform: translateX(100%);
    transition: transform .26s var(--ease);
    display: flex;
    flex-direction: column;
    gap: 6px;
    overflow-y: auto;
  }
  .drawer.open .drawer-panel { transform: translateX(0); }
  .drawer-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
  .drawer-close {
    width: 44px; height: 44px;
    background: none; border: 0; cursor: pointer;
    color: var(--text-mid);
    font-size: 24px;
    line-height: 1;
    border-radius: var(--r-sm);
  }
  .drawer-close:hover { color: var(--brand-300); }
  .drawer-link {
    display: flex;
    align-items: center;
    min-height: 56px;
    font-size: 18px;
    color: var(--text-hi);
    border-bottom: 1px solid var(--line);
    transition: color .18s var(--ease), padding-left .18s var(--ease);
  }
  .drawer-link:hover { color: var(--brand-300); padding-left: 4px; }
  .drawer-cta {
    margin-top: 22px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    border-radius: var(--r-pill);
    background: var(--brand-500);
    color: #04231D;
    font-weight: 700;
  }

  /* ============ 按钮 ============ */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 48px;
    padding: 0 26px;
    border-radius: var(--r-pill);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid transparent;
    transition: transform .18s var(--ease), box-shadow .18s var(--ease), background .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease), filter .18s var(--ease);
  }
  .btn-primary {
    background: var(--brand-500);
    color: #04231D;
    box-shadow: var(--shadow-glow);
    animation: pulse 3.6s ease-in-out infinite;
  }
  .btn-primary:hover { filter: brightness(1.08); transform: translateY(-1px); }
  .btn-primary:active { transform: translateY(0); filter: brightness(.96); }
  .btn-ghost {
    background: transparent;
    border-color: var(--line-strong);
    color: var(--text-hi);
  }
  .btn-ghost:hover { border-color: rgba(33,230,193,.5); color: var(--brand-300); transform: translateY(-1px); }
  @keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 1px rgba(33,230,193,.35), 0 12px 40px -12px rgba(33,230,193,.5); }
    50% { box-shadow: 0 0 0 1px rgba(33,230,193,.45), 0 16px 46px -10px rgba(33,230,193,.68); }
  }

  /* ============ 页头 ============ */
  .page-hero {
    position: relative;
    overflow: hidden;
    padding: 132px 0 72px;
    background: var(--ink-950);
    border-bottom: 1px solid var(--line);
  }
  .page-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
      linear-gradient(rgba(255,255,255,.026) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255,255,255,.026) 1px, transparent 1px);
    background-size: 64px 64px;
    -webkit-mask-image: radial-gradient(120% 90% at 18% 0%, #000 18%, transparent 76%);
    mask-image: radial-gradient(120% 90% at 18% 0%, #000 18%, transparent 76%);
  }
  .page-hero::after {
    content: "";
    position: absolute;
    top: -280px;
    right: -200px;
    width: 640px;
    height: 640px;
    background: radial-gradient(circle, rgba(33,230,193,.15), transparent 62%);
    pointer-events: none;
  }
  .page-hero .container { position: relative; z-index: 2; }

  .crumbs {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: var(--text-low);
    margin-bottom: 26px;
  }
  .crumbs a { color: var(--text-low); transition: color .18s var(--ease); }
  .crumbs a:hover { color: var(--brand-300); }
  .crumbs .sep { opacity: .5; }
  .crumbs .cur { color: var(--text-mid); }

  .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 12.5px;
    letter-spacing: .06em;
    color: var(--brand-300);
    padding: 6px 14px;
    border: 1px solid rgba(33,230,193,.28);
    border-radius: var(--r-pill);
    background: rgba(33,230,193,.05);
    margin-bottom: 22px;
  }
  .eyebrow::before {
    content: "";
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--brand-500);
  }

  .page-hero h1 {
    font-size: 46px;
    font-weight: 700;
    line-height: 1.16;
    max-width: 20ch;
  }
  .hero-lead {
    margin-top: 20px;
    font-size: 16.5px;
    color: var(--text-mid);
    max-width: 56ch;
    line-height: 1.85;
  }

  .chip-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 34px;
  }
  .chip {
    display: inline-flex;
    align-items: center;
    min-height: 40px;
    padding: 0 18px;
    border-radius: var(--r-pill);
    border: 1px solid var(--line-strong);
    font-size: 13.5px;
    color: var(--text-mid);
    transition: color .18s var(--ease), border-color .18s var(--ease), background .18s var(--ease);
  }
  .chip:hover, .chip.is-on {
    color: var(--brand-300);
    border-color: rgba(33,230,193,.45);
    background: rgba(33,230,193,.06);
  }

  /* ============ 通用板块 ============ */
  .section { padding: var(--sec) 0 0; }
  .section-head { margin-bottom: 44px; }
  .section-head h2 {
    font-size: 32px;
    font-weight: 700;
    max-width: 24ch;
  }
  .section-head p {
    margin-top: 12px;
    font-size: 15.5px;
    color: var(--text-mid);
    max-width: 60ch;
  }

  /* ============ FAQ ============ */
  .faq-layout {
    display: grid;
    grid-template-columns: 260px minmax(0, 1fr);
    gap: 40px;
    align-items: start;
  }
  .faq-aside {
    position: sticky;
    top: 100px;
    padding: 26px 22px;
    border: 1px solid var(--glass-bd);
    border-radius: var(--r-lg);
    background: var(--glass-bg);
    backdrop-filter: blur(14px) saturate(120%);
    -webkit-backdrop-filter: blur(14px) saturate(120%);
  }
  .faq-aside h3 { font-size: 15px; margin-bottom: 16px; }
  .faq-aside a {
    display: block;
    font-size: 14px;
    color: var(--text-mid);
    padding: 9px 0;
    border-bottom: 1px solid var(--line);
    transition: color .18s var(--ease), padding-left .18s var(--ease);
  }
  .faq-aside a:last-child { border-bottom: 0; }
  .faq-aside a:hover { color: var(--brand-300); padding-left: 4px; }

  .faq-group {
    border: 1px solid var(--glass-bd);
    border-radius: var(--r-md);
    background: var(--glass-bg);
    backdrop-filter: blur(14px) saturate(120%);
    -webkit-backdrop-filter: blur(14px) saturate(120%);
    box-shadow: var(--shadow-card);
    padding: 10px 26px 12px;
    margin-bottom: 22px;
    scroll-margin-top: 96px;
  }
  .faq-group-head {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 18px 0 14px;
    border-bottom: 1px solid var(--line);
  }
  .faq-group-head h2 {
    font-size: 18px;
    font-weight: 700;
  }
  .faq-group-head .num {
    font-size: 12px;
    color: var(--brand-300);
    letter-spacing: .08em;
  }

  .faq-item {
    border-bottom: 1px solid var(--line);
    border-radius: var(--r-sm);
    transition: background .2s var(--ease), border-color .2s var(--ease);
  }
  .faq-item:last-child { border-bottom: 0; }
  .faq-item.open {
    background: rgba(33,230,193,.045);
    border-color: rgba(33,230,193,.3);
  }
  .faq-q {
    width: 100%;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 20px;
    padding: 19px 4px;
    background: none;
    border: 0;
    text-align: left;
    cursor: pointer;
    color: var(--text-hi);
    font-size: 16.5px;
    font-weight: 600;
    line-height: 1.6;
    transition: color .18s var(--ease);
  }
  .faq-q:hover { color: var(--brand-300); }
  .faq-item.open .faq-q { color: var(--brand-300); }
  .faq-ico {
    position: relative;
    flex: 0 0 18px;
    width: 18px;
    height: 18px;
    margin-top: 5px;
  }
  .faq-ico::before,
  .faq-ico::after {
    content: "";
    position: absolute;
    background: var(--brand-500);
    transition: transform .2s var(--ease), opacity .2s var(--ease);
  }
  .faq-ico::before { left: 0; top: 8px; width: 18px; height: 1.5px; }
  .faq-ico::after { left: 8px; top: 0; width: 1.5px; height: 18px; }
  .faq-item.open .faq-ico::after { transform: scaleY(0); opacity: 0; }

  .faq-a {
    display: grid;
    grid-template-rows: 0fr;
    opacity: 0;
    transition: grid-template-rows .3s var(--ease), opacity .24s var(--ease);
  }
  .faq-a > div { overflow: hidden; }
  .faq-a p {
    padding: 0 4px 20px;
    font-size: 15px;
    line-height: 1.85;
    color: var(--text-mid);
    max-width: 74ch;
  }
  .faq-item.open .faq-a { grid-template-rows: 1fr; opacity: 1; }

  /* ============ 自救排查 ============ */
  .check-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
  }
  .check-list { margin-top: 26px; display: grid; gap: 18px; }
  .check-list li {
    display: grid;
    grid-template-columns: 34px 1fr;
    gap: 14px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--line);
  }
  .check-list li:last-child { border-bottom: 0; padding-bottom: 0; }
  .check-list .idx {
    font-size: 13px;
    color: var(--brand-300);
    letter-spacing: .08em;
    padding-top: 3px;
  }
  .check-list strong {
    display: block;
    color: var(--text-hi);
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
  }
  .check-list span { font-size: 14.5px; color: var(--text-mid); }

  .figure-card {
    position: relative;
    border-radius: var(--r-md);
    overflow: hidden;
    border: 1px solid var(--glass-bd);
    background: var(--ink-800);
    box-shadow: var(--shadow-card);
  }
  .figure-card img {
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
  }
  .figure-card::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(5,9,15,.15), rgba(5,9,15,.72));
  }
  .figure-cap {
    position: absolute;
    left: 22px;
    right: 22px;
    bottom: 18px;
    z-index: 2;
    font-size: 13px;
    color: var(--text-mid);
  }

  /* ============ 表单 / 联系 ============ */
  .contact-wrap {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 48px;
    align-items: start;
    padding: 40px;
    border: 1px solid var(--glass-bd);
    border-radius: var(--r-xl);
    background: var(--glass-bg);
    backdrop-filter: blur(14px) saturate(120%);
    -webkit-backdrop-filter: blur(14px) saturate(120%);
    box-shadow: var(--shadow-card);
    scroll-margin-top: 96px;
  }
  .contact-info h2 { font-size: 28px; }
  .contact-info p { margin-top: 14px; font-size: 15.5px; }
  .contact-meta { margin-top: 26px; display: grid; gap: 12px; }
  .contact-meta div {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--line);
    font-size: 14px;
  }
  .contact-meta div:last-child { border-bottom: 0; }
  .contact-meta span:first-child { color: var(--text-low); }
  .contact-meta span:last-child { color: var(--text-hi); }

  .form { display: grid; gap: 16px; }
  .field { display: grid; gap: 8px; }
  .field label { font-size: 13.5px; color: var(--text-mid); }
  .field input,
  .field textarea {
    width: 100%;
    padding: 13px 16px;
    font-size: 15px;
    color: var(--text-hi);
    background: rgba(8,14,24,.72);
    border: 1px solid rgba(255,255,255,.12);
    border-radius: var(--r-sm);
    transition: border-color .18s var(--ease), box-shadow .18s var(--ease);
    font-family: inherit;
  }
  .field textarea { min-height: 120px; resize: vertical; line-height: 1.75; }
  .field input::placeholder,
  .field textarea::placeholder { color: var(--text-low); }
  .field input:focus,
  .field textarea:focus {
    outline: none;
    border-color: var(--brand-500);
    box-shadow: 0 0 0 4px rgba(33,230,193,.15);
  }
  .checkbox-row {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 13.5px;
    color: var(--text-mid);
  }
  .checkbox-row input { width: 16px; height: 16px; margin-top: 4px; accent-color: var(--brand-500); }
  .form-note { font-size: 12.5px; color: var(--text-low); line-height: 1.8; }
  .form-note a { color: var(--text-low); border-bottom: 1px dashed rgba(255,255,255,.2); }
  .form-note a:hover { color: var(--brand-300); }
  .form-msg {
    font-size: 14px;
    padding: 12px 16px;
    border-radius: var(--r-sm);
    border: 1px solid rgba(33,230,193,.35);
    background: rgba(33,230,193,.07);
    color: var(--brand-300);
  }
  .form-msg.err {
    border-color: rgba(255,138,76,.5);
    background: rgba(255,138,76,.08);
    color: var(--accent-500);
  }

  /* ============ CTA 条 ============ */
  .cta-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 28px;
    flex-wrap: wrap;
    padding: 28px 32px;
    border: 1px solid var(--glass-bd);
    border-radius: var(--r-lg);
    background: rgba(255,255,255,.03);
  }
  .cta-bar strong {
    display: block;
    color: var(--text-hi);
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 4px;
  }
  .cta-bar span { font-size: 14px; color: var(--text-mid); }

  /* ============ 页脚 ============ */
  .site-footer {
    margin-top: var(--sec);
    background: var(--ink-900);
    border-top: 1px solid var(--line);
    padding: 64px 0 30px;
  }
  .footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1.1fr;
    gap: 40px;
  }
  .footer-brand .logo-mark { font-size: 18px; margin-bottom: 14px; }
  .footer-tagline { font-size: 14px; color: var(--text-low); line-height: 1.85; max-width: 30ch; }
  .footer-col h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-hi);
    margin-bottom: 16px;
  }
  .footer-links { display: grid; gap: 10px; }
  .footer-links a,
  .footer-links span {
    font-size: 13.5px;
    color: var(--text-low);
    transition: color .18s var(--ease);
  }
  .footer-links a:hover { color: var(--brand-300); }
  .footer-bottom {
    margin-top: 48px;
    padding-top: 22px;
    border-top: 1px solid var(--line);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    flex-wrap: wrap;
    font-size: 13px;
    color: var(--text-low);
  }
  .footer-bottom-links { display: flex; gap: 22px; flex-wrap: wrap; }
  .footer-bottom-links a { color: var(--text-low); transition: color .18s var(--ease); }
  .footer-bottom-links a:hover { color: var(--brand-300); }

  /* ============ 入场动画 ============ */
  .reveal { opacity: 0; transform: translateY(12px); transition: opacity .5s var(--ease), transform .5s var(--ease); }
  .reveal.in { opacity: 1; transform: none; }

  @media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .reveal { transform: none; transition: opacity .3s linear; }
    .btn-primary { animation: none; }
    * { transition-duration: .01ms !important; }
  }

  /* ============ 响应式 ============ */
  @media (max-width: 1024px) {
    .container { padding: 0 32px; }
    :root { --sec: 88px; }
    .nav-menu { display: none; }
    .nav-icon { display: none; }
    .burger { display: flex; }
    .faq-layout { grid-template-columns: 1fr; gap: 28px; }
    .faq-aside { position: static; display: flex; flex-wrap: wrap; gap: 10px; padding: 18px; }
    .faq-aside h3 { width: 100%; margin-bottom: 4px; }
    .faq-aside a {
      border: 1px solid var(--line-strong);
      border-radius: var(--r-pill);
      padding: 8px 16px;
      font-size: 13.5px;
    }
    .check-split { grid-template-columns: 1fr; gap: 32px; }
    .contact-wrap { grid-template-columns: 1fr; gap: 32px; padding: 32px; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
    .page-hero h1 { font-size: 38px; }
  }

  @media (max-width: 768px) {
    .container { padding: 0 20px; }
    :root { --sec: 64px; }
    .page-hero { padding: 112px 0 56px; }
    .page-hero h1 { font-size: 32px; }
    .hero-lead { font-size: 15.5px; }
    .section-head h2 { font-size: 25px; }
    .faq-group { padding: 8px 18px 10px; }
    .faq-q { font-size: 16px; padding: 17px 2px; }
    .cta-bar { padding: 22px; }
    .cta-bar .btn { width: 100%; }
    .contact-wrap { padding: 24px; border-radius: var(--r-lg); }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; align-items: flex-start; gap: 12px; }
  }

  @media (max-width: 520px) {
    .page-hero h1 { font-size: 28px; }
    .logo-sub { display: none; }
    .nav-cta { padding: 0 14px; font-size: 13px; }
    .chip { font-size: 13px; min-height: 38px; padding: 0 14px; }
  }