/* roulang page: index */
:root{
  --bg-0:#080B0F;
  --bg-1:#0F151C;
  --bg-2:#16202A;
  --brand:#23E6A8;
  --brand-soft:#7CF5D0;
  --accent:#FFC24B;
  --warn:#FF7A45;
  --line:rgba(35,230,168,.14);
  --line-2:rgba(255,255,255,.07);
  --text-1:#E9F2EF;
  --text-2:#9FB0BA;
  --text-3:#6C7C88;
  --r-card:14px;
  --r-btn:10px;
  --shadow-card:0 18px 40px -24px rgba(0,0,0,.9), inset 0 1px 0 rgba(255,255,255,.04);
  --shadow-hover:0 0 0 1px rgba(35,230,168,.35), 0 0 24px -6px rgba(35,230,168,.45);
  --font-cn:'PingFang SC','Microsoft YaHei','Noto Sans SC',system-ui,sans-serif;
  --font-mono:ui-monospace,'JetBrains Mono',Menlo,Consolas,monospace;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-2);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.88;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
body::before{
  content:'';
  position:fixed;
  inset:0;
  pointer-events:none;
  background:
    radial-gradient(680px 340px at 12% -8%, rgba(35,230,168,.08), transparent 70%),
    radial-gradient(520px 300px at 92% 6%, rgba(255,194,75,.05), transparent 72%);
  z-index:0;
}
a{color:inherit;text-decoration:none;}
img{display:block;max-width:100%;}
button,input,select,textarea{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--text-1);line-height:1.35;font-weight:600;}
p{margin:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}

.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;position:relative;z-index:1;}
@media (min-width:768px){.container-x{padding:0 24px;}}
@media (min-width:1280px){.container-x{padding:0 32px;}}

.section-pad{padding:48px 0;position:relative;z-index:1;}
@media (min-width:768px){.section-pad{padding:64px 0;}}
@media (min-width:1024px){.section-pad{padding:88px 0;}}

.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(8,11,15,.92);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line-2);
}
.site-header::after{
  content:'';
  position:absolute;
  left:0;right:0;bottom:-1px;
  height:1px;
  background:linear-gradient(90deg, transparent, rgba(35,230,168,.55), rgba(255,194,75,.35), transparent);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(140deg, rgba(35,230,168,.9), rgba(35,230,168,.25));
  border:1px solid rgba(35,230,168,.5);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-mono);
  font-size:13px;font-weight:700;color:#06231A;letter-spacing:-.02em;
  box-shadow:0 0 18px -4px rgba(35,230,168,.7);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:15px;font-weight:700;color:var(--text-1);letter-spacing:.01em;}
.brand-sub{font-size:11px;color:var(--text-3);letter-spacing:.08em;font-family:var(--font-mono);}

.nav-list{display:none;align-items:center;gap:26px;height:68px;}
.nav-link{
  display:flex;align-items:center;height:68px;
  position:relative;
  font-size:15px;color:var(--text-2);
  transition:color .2s ease;
  white-space:nowrap;
}
.nav-link:hover{color:var(--brand);}
.nav-link.active{color:var(--text-1);text-shadow:0 0 14px rgba(35,230,168,.55);}
.nav-link.active::after{
  content:'';
  position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--brand);
  box-shadow:0 0 12px rgba(35,230,168,.9);
  border-radius:2px;
}
@media (min-width:1024px){.nav-list{display:flex;}}

.header-cta{display:none;}
@media (min-width:1024px){.header-cta{display:inline-flex;}}

.menu-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:10px;
  background:var(--bg-1);border:1px solid var(--line-2);
  cursor:pointer;transition:border-color .2s ease, background .2s ease;
}
.menu-btn:hover{border-color:var(--line);background:var(--bg-2);}
@media (min-width:1024px){.menu-btn{display:none;}}
.menu-btn span{display:block;width:18px;height:2px;background:var(--text-1);border-radius:2px;position:relative;}
.menu-btn span::before,.menu-btn span::after{
  content:'';position:absolute;left:0;width:18px;height:2px;background:var(--text-1);border-radius:2px;
}
.menu-btn span::before{top:-6px;}
.menu-btn span::after{top:6px;}

.mobile-drawer{
  position:fixed;top:68px;left:0;right:0;bottom:0;
  background:rgba(5,8,11,.98);
  border-left:2px solid var(--brand);
  padding:18px 20px 40px;
  transform:translateX(-100%);
  transition:transform .28s ease;
  z-index:55;
  overflow-y:auto;
}
.mobile-drawer.open{transform:translateX(0);}
.mobile-drawer a{
  display:flex;align-items:center;min-height:48px;
  font-size:18px;color:var(--text-2);
  border-bottom:1px solid var(--line-2);
  transition:color .2s ease;
}
.mobile-drawer a:hover,.mobile-drawer a.active{color:var(--brand);}
.mobile-drawer .drawer-cta{margin-top:22px;}
@media (min-width:1024px){.mobile-drawer{display:none;}}

/* ---------- buttons ---------- */
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--brand);color:#06231A;font-weight:600;
  padding:12px 24px;border-radius:var(--r-btn);
  border:1px solid rgba(35,230,168,.9);
  cursor:pointer;white-space:nowrap;
  transition:background .2s ease, transform .2s ease, box-shadow .2s ease;
}
.btn-primary:hover{background:var(--brand-soft);transform:translateY(-1px);box-shadow:0 0 24px -6px rgba(35,230,168,.6);}
.btn-primary:active{transform:none;box-shadow:none;}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:transparent;color:var(--text-1);font-weight:600;
  padding:12px 24px;border-radius:var(--r-btn);
  border:1px solid var(--line);
  cursor:pointer;white-space:nowrap;
  transition:border-color .2s ease, background .2s ease, transform .2s ease;
}
.btn-ghost:hover{border-color:var(--brand);background:rgba(35,230,168,.08);transform:translateY(-1px);}
.btn-ghost:active{transform:none;}
.btn-full{width:100%;}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line-2);}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  opacity:.9;
}
.hero-mask{
  position:absolute;inset:0;
  background:
    linear-gradient(90deg, rgba(8,11,15,.97) 0%, rgba(8,11,15,.9) 42%, rgba(8,11,15,.62) 100%),
    linear-gradient(180deg, rgba(8,11,15,.86) 0%, rgba(8,11,15,.98) 100%);
}
.hero-inner{position:relative;z-index:2;padding:56px 0 60px;}
@media (min-width:1024px){.hero-inner{padding:86px 0 92px;}}
.hero-grid{display:grid;gap:36px;grid-template-columns:1fr;}
@media (min-width:1024px){.hero-grid{grid-template-columns:7fr 5fr;gap:48px;align-items:center;}}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--brand);font-family:var(--font-mono);
  border:1px solid var(--line);border-radius:999px;
  padding:5px 14px;background:rgba(35,230,168,.06);
}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px var(--brand);display:block;}

.hero-title{
  margin:20px 0 18px;
  font-size:clamp(30px,4.2vw,48px);
  font-weight:700;
  line-height:1.28;
  color:var(--text-1);
  letter-spacing:-.01em;
}
.hero-title em{font-style:normal;color:var(--brand);text-shadow:0 0 26px rgba(35,230,168,.4);}
.hero-lead{font-size:16px;line-height:1.9;color:var(--text-2);max-width:600px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-mini{display:flex;flex-wrap:wrap;gap:14px 30px;margin-top:34px;padding-top:22px;border-top:1px solid var(--line-2);}
.hero-mini div{display:flex;flex-direction:column;gap:2px;}
.hero-mini b{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:19px;color:var(--text-1);font-weight:700;}
.hero-mini span{font-size:12px;color:var(--text-3);letter-spacing:.04em;}

.float-card{
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:var(--shadow-card);
}
.float-card h3{font-size:16px;display:flex;align-items:center;justify-content:space-between;gap:12px;}
.float-card .dot-live{
  font-family:var(--font-mono);font-size:11px;color:var(--brand);
  display:inline-flex;align-items:center;gap:6px;
}
.float-card .dot-live i{width:7px;height:7px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px var(--brand);display:block;animation:pulse 1.8s infinite;}
@keyframes pulse{0%,100%{opacity:1;}50%{opacity:.35;}}
.float-list{margin-top:16px;display:flex;flex-direction:column;gap:1px;background:var(--line-2);border-radius:10px;overflow:hidden;}
.float-row{display:flex;align-items:center;justify-content:space-between;gap:12px;background:var(--bg-1);padding:13px 14px;font-size:14px;}
.float-row span{color:var(--text-2);}
.float-row b{font-family:var(--font-mono);font-variant-numeric:tabular-nums;color:var(--text-1);font-weight:600;}
.float-row b.up{color:var(--brand);}
.float-row b.ac{color:var(--accent);}
.float-foot{margin-top:16px;font-size:12px;color:var(--text-3);line-height:1.7;}

/* ---------- section heads ---------- */
.sec-head{max-width:720px;margin-bottom:34px;}
.sec-head .tag{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;
  color:var(--accent);text-transform:uppercase;margin-bottom:12px;
}
.sec-head h2{font-size:clamp(24px,2.6vw,32px);margin-bottom:12px;}
.sec-head p{font-size:15.5px;color:var(--text-2);line-height:1.9;}

/* ---------- cards ---------- */
.card-dark{
  background:var(--bg-1);
  border:1px solid var(--line-2);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
  transition:transform .25s ease, box-shadow .25s ease, border-color .25s ease;
  position:relative;
  overflow:hidden;
}
.card-hover:hover{
  transform:translateY(-2px);
  border-color:rgba(35,230,168,.35);
  box-shadow:var(--shadow-hover);
}
.card-pad{padding:22px;}

.kpi-card{padding:20px 22px;}
.kpi-label{font-size:13px;color:var(--text-3);letter-spacing:.04em;}
.kpi-num{
  font-family:var(--font-mono);font-variant-numeric:tabular-nums;
  font-size:clamp(28px,3vw,36px);font-weight:700;color:var(--text-1);
  letter-spacing:-.02em;line-height:1.2;margin:8px 0 6px;white-space:nowrap;
}
.kpi-trend{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-family:var(--font-mono);}
.kpi-trend.up{color:var(--brand);}
.kpi-trend.down{color:var(--warn);}
.kpi-bar{height:3px;border-radius:3px;background:var(--bg-2);margin-top:14px;overflow:hidden;}
.kpi-bar i{display:block;height:100%;background:linear-gradient(90deg, var(--brand), var(--brand-soft));}
.kpi-bar.amber i{background:linear-gradient(90deg, var(--accent), #ffe0a0);}

/* ---------- service matrix ---------- */
.matrix{display:grid;gap:20px;grid-template-columns:1fr;}
@media (min-width:768px){.matrix{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.matrix{grid-template-columns:repeat(6,1fr);grid-auto-rows:minmax(150px,auto);}}
.matrix .m-a{grid-column:span 1;}
.matrix .m-b{grid-column:span 1;}
.matrix .m-c{grid-column:span 1;}
.matrix .m-d{grid-column:span 1;}
.matrix .m-e{grid-column:span 1;}
@media (min-width:1024px){
  .matrix .m-a{grid-column:span 2;grid-row:span 2;}
  .matrix .m-b{grid-column:span 2;}
  .matrix .m-c{grid-column:span 2;}
  .matrix .m-d{grid-column:span 2;}
  .matrix .m-e{grid-column:span 2;}
}
.m-card{display:flex;flex-direction:column;justify-content:flex-start;padding:22px;gap:12px;}
.m-card h3{font-size:19px;}
.m-card p{font-size:14.5px;line-height:1.85;color:var(--text-2);}
.m-num{font-family:var(--font-mono);font-size:12px;color:var(--brand);letter-spacing:.1em;}
.m-cover{
  position:relative;border-radius:12px;overflow:hidden;background:#0b1015;
  aspect-ratio:16/9;
}
.m-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.card-dark:hover .m-cover img{transform:scale(1.04);}
.m-list{margin-top:auto;display:flex;flex-direction:column;gap:8px;padding-top:6px;}
.m-list li{display:flex;gap:8px;font-size:13.5px;color:var(--text-3);}
.m-list li::before{content:'';width:5px;height:5px;border-radius:50%;background:var(--brand);margin-top:9px;flex-shrink:0;}

/* ---------- latest ---------- */
.post-grid{display:grid;gap:22px;grid-template-columns:1fr;}
@media (min-width:768px){.post-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.post-grid{grid-template-columns:repeat(3,1fr);}}
.cover-wrap{
  position:relative;overflow:hidden;aspect-ratio:16/9;background:#0b1015;
  border-bottom:1px solid var(--line-2);
}
.cover-wrap img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.card-dark:hover .cover-wrap img{transform:scale(1.03);}
.post-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;height:calc(100% - 1px);}
.badge{
  display:inline-flex;align-items:center;
  border:1px solid var(--line);border-radius:999px;
  padding:3px 12px;font-size:12px;letter-spacing:.04em;
  color:var(--brand);background:rgba(35,230,168,.06);
  width:fit-content;
}
.badge-accent{color:var(--accent);background:rgba(255,194,75,.08);border-color:rgba(255,194,75,.25);}
.post-title{font-size:17px;line-height:1.55;}
.post-title a{transition:color .2s ease;}
.post-title a:hover{color:var(--brand);}
.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.clamp-3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.post-excerpt{font-size:14.5px;color:var(--text-2);line-height:1.8;}
.post-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:12px;border-top:1px solid var(--line-2);
  font-size:13px;color:var(--text-3);
}
.post-foot .more{color:var(--brand);font-weight:600;transition:opacity .2s ease;}
.post-foot .more:hover{opacity:.75;}

.empty-card{
  border:1px dashed var(--line);
  border-radius:var(--r-card);
  padding:52px 24px;
  text-align:center;
  background:rgba(15,21,28,.6);
}
.empty-icon{
  width:46px;height:46px;border-radius:12px;margin:0 auto 16px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--brand);
  font-family:var(--font-mono);font-size:18px;
}
.empty-card strong{display:block;color:var(--text-1);font-size:16px;margin-bottom:6px;}
.empty-card span{font-size:13.5px;color:var(--text-3);}

/* ---------- compare ---------- */
.vs-wrap{border:1px solid var(--line-2);border-radius:var(--r-card);overflow:hidden;background:var(--bg-1);box-shadow:var(--shadow-card);}
.vs-head{display:none;}
@media (min-width:768px){
  .vs-head{display:grid;grid-template-columns:1fr 1fr;background:var(--bg-2);}
  .vs-head div{padding:14px 22px;font-size:13px;letter-spacing:.08em;font-family:var(--font-mono);color:var(--text-3);}
  .vs-head div:last-child{color:var(--brand);border-left:1px solid var(--line);}
}
.vs-item{display:grid;grid-template-columns:1fr;border-top:1px solid var(--line-2);}
@media (min-width:768px){
  .vs-item{grid-template-columns:1fr 1fr;}
  .vs-item > div{border-left:none;}
  .vs-item > div:last-child{border-left:1px solid var(--line);background:rgba(35,230,168,.04);}
}
.vs-item > div{padding:16px 22px;font-size:14.5px;line-height:1.8;}
.vs-item > div:last-child{color:var(--text-1);}
.vs-item > div::before{
  content:attr(data-label);
  display:block;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em;
  color:var(--text-3);margin-bottom:6px;
}
@media (min-width:768px){.vs-item > div::before{display:none;}}

/* ---------- steps ---------- */
.steps{display:grid;gap:20px;grid-template-columns:1fr;}
@media (min-width:768px){.steps{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.steps{grid-template-columns:repeat(4,1fr);}}
.step{position:relative;padding:24px 22px;}
.step-num{
  font-family:var(--font-mono);font-size:13px;color:var(--accent);
  letter-spacing:.12em;margin-bottom:12px;display:block;
}
.step h3{font-size:17px;margin-bottom:10px;}
.step p{font-size:14.5px;color:var(--text-2);}

/* ---------- faq ---------- */
.faq-list{max-width:820px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--line-2);transition:background .2s ease;}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:flex-start;justify-content:space-between;gap:18px;
  padding:20px 4px 20px 14px;
  position:relative;
  font-size:17px;font-weight:600;color:var(--text-1);
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand);}
.faq-item summary::before{
  content:'';position:absolute;left:0;top:20px;bottom:20px;width:2px;
  background:transparent;transition:background .2s ease;
}
.faq-item[open] summary::before{background:var(--brand);box-shadow:0 0 12px rgba(35,230,168,.7);}
.faq-icon{
  flex-shrink:0;width:22px;height:22px;border-radius:6px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--brand);font-family:var(--font-mono);font-size:14px;
  transition:transform .18s ease, background .18s ease;
  margin-top:3px;
}
.faq-item[open] .faq-icon{transform:rotate(45deg);background:rgba(35,230,168,.12);}
.faq-a{padding:0 4px 22px 14px;font-size:15px;line-height:1.9;color:var(--text-2);}

/* ---------- form ---------- */
.form-shell{display:grid;gap:28px;grid-template-columns:1fr;}
@media (min-width:1024px){.form-shell{grid-template-columns:5fr 7fr;gap:40px;align-items:start;}}
.point{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line-2);}
.point:last-child{border-bottom:none;}
.point i{
  flex-shrink:0;width:32px;height:32px;border-radius:9px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--brand);
  font-family:var(--font-mono);font-size:13px;font-style:normal;
}
.point strong{display:block;color:var(--text-1);font-size:15.5px;margin-bottom:4px;}
.point span{font-size:14px;color:var(--text-2);line-height:1.8;}

.form-card{padding:26px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;color:var(--text-3);letter-spacing:.03em;margin-bottom:8px;}
.field label .req{color:var(--accent);margin-left:3px;}
.field input,.field select,.field textarea{
  width:100%;
  background:var(--bg-2);
  border:1px solid var(--line-2);
  border-radius:10px;
  padding:12px 14px;
  font-size:15px;
  color:var(--text-1);
  transition:border-color .2s ease, box-shadow .2s ease, background .2s ease;
}
.field input::placeholder,.field textarea::placeholder{color:#5b6a76;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);
  box-shadow:0 0 0 4px rgba(35,230,168,.15);
  background:#182430;
}
.field textarea{resize:vertical;min-height:110px;line-height:1.8;}
.form-note{font-size:12px;color:var(--text-3);line-height:1.8;margin-top:14px;}
.form-msg{font-size:13.5px;margin-top:12px;display:none;}
.form-msg.show{display:block;color:var(--brand);}

/* ---------- footer ---------- */
.site-footer{
  background:#05080B;
  border-top:1px solid var(--line-2);
  position:relative;
  margin-top:8px;
}
.site-footer::before{
  content:'';position:absolute;left:0;right:0;top:-1px;height:1px;
  background:linear-gradient(90deg, transparent, rgba(35,230,168,.5), rgba(255,194,75,.28), transparent);
}
.footer-grid{display:grid;gap:30px;grid-template-columns:1fr;padding:48px 0 34px;}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;}}
.footer-col h4{font-size:14px;font-weight:600;color:var(--text-1);letter-spacing:.04em;margin-bottom:16px;}
.footer-col a{display:block;font-size:14px;color:var(--text-2);padding:5px 0;transition:color .2s ease, transform .2s ease;}
.footer-col a:hover{color:var(--brand);transform:translateX(2px);}
.footer-about p{font-size:14px;color:var(--text-2);line-height:1.9;margin-top:14px;max-width:330px;}
.footer-bottom{
  border-top:1px solid var(--line-2);
  padding:18px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px 24px;
  align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.footer-bottom .mono{font-family:var(--font-mono);letter-spacing:.02em;}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important;}
}

/* roulang page: article */
:root{
  --bg-0:#080B0F;
  --bg-1:#0F151C;
  --bg-2:#16202A;
  --brand:#23E6A8;
  --brand-soft:#7CF5D0;
  --accent:#FFC24B;
  --warn:#FF7A45;
  --line:rgba(35,230,168,.14);
  --line-2:rgba(255,255,255,.07);
  --text-1:#E9F2EF;
  --text-2:#9FB0BA;
  --text-3:#6C7C88;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-card:0 18px 40px -24px rgba(0,0,0,.9), inset 0 1px 0 rgba(255,255,255,.04);
  --shadow-hover:0 0 0 1px rgba(35,230,168,.35), 0 0 24px -6px rgba(35,230,168,.45);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --font-mono:ui-monospace,"JetBrains Mono",SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-2);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none;transition:color .18s ease,border-color .18s ease,background-color .18s ease}
img{max-width:100%;display:block}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4,h5{margin:0;color:var(--text-1);line-height:1.35;font-weight:600}
p{margin:0}
ul,ol{margin:0}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
  border-radius:6px;
}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand);color:#06231A;padding:10px 18px;border-radius:0 0 10px 0;z-index:200;font-size:14px}
.skip-link:focus{left:0}
.container-x{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}

/* ===== Header / Nav ===== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(8,11,15,.92);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.site-header::after{
  content:"";display:block;height:1px;
  background:linear-gradient(90deg,transparent,rgba(35,230,168,.55),rgba(255,194,75,.35),transparent);
}
.header-inner{height:68px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(145deg,rgba(35,230,168,.22),rgba(35,230,168,.05));
  border:1px solid var(--line);
  color:var(--brand);font-family:var(--font-mono);font-size:13px;font-weight:700;letter-spacing:.02em;
  box-shadow:0 0 18px -6px rgba(35,230,168,.6);
}
.brand-text{
  font-size:16px;font-weight:700;color:var(--text-1);letter-spacing:.01em;white-space:nowrap;
}
.brand:hover .brand-text{color:var(--brand-soft)}
.nav-list{display:flex;align-items:center;gap:2px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:9px 13px;border-radius:8px;font-size:15px;color:var(--text-2);white-space:nowrap;
}
.nav-link:hover{color:var(--brand)}
.nav-link.active{color:var(--text-1);text-shadow:0 0 14px rgba(35,230,168,.55)}
.nav-link.active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:-3px;height:2px;
  border-radius:2px;background:var(--brand);box-shadow:0 0 10px rgba(35,230,168,.8);
}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:13px 22px;border-radius:var(--radius-btn);
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .18s ease,background-color .18s ease,border-color .18s ease,box-shadow .18s ease,color .18s ease;
}
.btn-sm{padding:10px 16px;font-size:14px}
.btn-primary{background:var(--brand);color:#06231A}
.btn-primary:hover{background:var(--brand-soft);transform:translateY(-1px);box-shadow:0 0 28px -6px rgba(35,230,168,.65)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text-1)}
.btn-ghost:hover{border-color:var(--brand);background:rgba(35,230,168,.08);color:var(--brand-soft)}
.btn-block{width:100%}
.menu-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;border-radius:10px;
  background:transparent;border:1px solid var(--line);cursor:pointer;padding:0 11px;
}
.menu-toggle span{display:block;height:2px;border-radius:2px;background:var(--text-1);transition:transform .2s ease,opacity .2s ease}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ===== Page hero ===== */
.page-hero{
  position:relative;
  padding:58px 0 46px;
  background-image:linear-gradient(180deg,rgba(8,11,15,.74) 0%,rgba(8,11,15,.9) 62%,var(--bg-0) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line-2);
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:9px;font-size:13px;color:var(--text-3);margin-bottom:20px}
.breadcrumb a{color:var(--text-3)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{opacity:.55}
.breadcrumb .current{color:var(--text-2);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.page-hero h1{
  font-size:clamp(26px,3.6vw,42px);
  font-weight:700;line-height:1.32;letter-spacing:-.01em;
  max-width:920px;
}
.hero-lead{margin-top:18px;font-size:16px;color:var(--text-2);max-width:760px;line-height:1.9}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:22px;font-size:13px;color:var(--text-3)}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:var(--text-3);opacity:.6}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 13px;border-radius:999px;
  border:1px solid var(--line);background:rgba(35,230,168,.06);
  color:var(--brand);font-size:12px;letter-spacing:.04em;line-height:1.6;
}
.badge-accent{color:var(--accent);border-color:rgba(255,194,75,.3);background:rgba(255,194,75,.07)}

/* ===== Article ===== */
.article-main{padding:56px 0 0}
.article-body{max-width:760px;margin:0 auto}
.prose-cn{font-size:16px;line-height:1.9;color:var(--text-2);overflow-wrap:break-word}
.prose-cn p{margin:0 0 1.15em}
.prose-cn h2{
  position:relative;font-size:clamp(21px,2.3vw,27px);font-weight:600;color:var(--text-1);
  margin:2.2em 0 .85em;padding-left:15px;line-height:1.4;
}
.prose-cn h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:3px;border-radius:3px;
  background:var(--brand);box-shadow:0 0 12px rgba(35,230,168,.7);
}
.prose-cn h3{font-size:20px;font-weight:600;color:var(--text-1);margin:1.7em 0 .7em}
.prose-cn h4{font-size:17px;font-weight:600;color:var(--text-1);margin:1.5em 0 .6em}
.prose-cn ul,.prose-cn ol{margin:0 0 1.15em;padding-left:1.45em}
.prose-cn li{margin-bottom:.5em}
.prose-cn li::marker{color:var(--brand)}
.prose-cn blockquote{
  margin:1.4em 0;padding:15px 20px;
  border-left:2px solid var(--brand);
  background:rgba(35,230,168,.05);
  border-radius:0 10px 10px 0;
  color:var(--text-2);
}
.prose-cn img{border-radius:var(--radius-img);margin:1.4em 0;background:var(--bg-1);width:100%;height:auto}
.prose-cn figure{margin:1.4em 0}
.prose-cn figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px}
.prose-cn table{
  width:100%;border-collapse:collapse;font-size:14.5px;margin:1.4em 0;
  display:block;overflow-x:auto;max-width:100%;
}
.prose-cn th,.prose-cn td{padding:10px 14px;border:1px solid var(--line-2);text-align:left;vertical-align:top}
.prose-cn thead th{background:var(--bg-2);color:var(--text-1);font-weight:600;white-space:nowrap}
.prose-cn tbody tr:nth-child(even){background:rgba(255,255,255,.022)}
.prose-cn a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.prose-cn a:hover{color:var(--brand-soft)}
.prose-cn strong,.prose-cn b{color:var(--text-1)}
.prose-cn pre{
  background:var(--bg-1);border:1px solid var(--line-2);border-radius:var(--radius-img);
  padding:16px 18px;overflow-x:auto;font-size:13.5px;line-height:1.7;margin:1.4em 0;
  font-family:var(--font-mono);
}
.prose-cn hr{border:0;border-top:1px solid var(--line-2);margin:2em 0}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:48px;padding-top:28px;border-top:1px solid var(--line-2)}
.tag{
  display:inline-flex;align-items:center;padding:6px 15px;border-radius:999px;
  border:1px solid var(--line-2);font-size:13px;color:var(--text-2);
  transition:all .18s ease;
}
.tag:hover{border-color:var(--brand);color:var(--brand);background:rgba(35,230,168,.07)}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--radius-card);
  padding:64px 26px;text-align:center;background:rgba(15,21,28,.65);
}
.empty-state .empty-icon{
  width:52px;height:52px;margin:0 auto 20px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--brand);font-family:var(--font-mono);font-size:20px;
  background:rgba(35,230,168,.06);
}
.empty-state h2{font-size:20px;margin-bottom:12px}
.empty-state p{font-size:15px;color:var(--text-3);margin-bottom:22px}

/* ===== Section blocks after article ===== */
.section{padding:72px 0}
.section-head{margin-bottom:34px;max-width:760px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.12em;
  color:var(--brand);text-transform:uppercase;margin-bottom:14px;font-family:var(--font-mono);
}
.section-head h2{font-size:clamp(22px,2.5vw,30px);font-weight:600}
.section-head p{margin-top:14px;font-size:15.5px;color:var(--text-2)}
.pn-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.pn-card{
  display:block;padding:22px 24px;border-radius:var(--radius-card);
  background:var(--bg-1);border:1px solid var(--line-2);
  box-shadow:var(--shadow-card);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.pn-card:hover{transform:translateY(-2px);border-color:rgba(35,230,168,.35);box-shadow:var(--shadow-hover)}
.pn-card span.pn-label{display:block;font-size:12px;letter-spacing:.1em;color:var(--text-3);font-family:var(--font-mono);margin-bottom:10px}
.pn-card h3{font-size:18px;margin-bottom:8px}
.pn-card p{font-size:14.5px;color:var(--text-3);line-height:1.8}
.pn-card:hover h3{color:var(--brand-soft)}
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.rel-card{
  display:block;border-radius:var(--radius-card);overflow:hidden;
  background:var(--bg-1);border:1px solid var(--line-2);
  box-shadow:var(--shadow-card);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.rel-card:hover{transform:translateY(-2px);border-color:rgba(35,230,168,.35);box-shadow:var(--shadow-hover)}
.rel-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--bg-2)}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.rel-card:hover .rel-thumb img{transform:scale(1.03)}
.rel-body{padding:18px 20px 22px}
.rel-body h3{font-size:16.5px;line-height:1.55;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-body p{font-size:14px;color:var(--text-3);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-meta{display:flex;align-items:center;justify-content:space-between;margin-top:16px;font-size:12.5px;color:var(--text-3)}
.rel-meta .more{color:var(--brand)}
.back-wrap{display:flex;justify-content:center;padding:8px 0 88px}

/* ===== Footer ===== */
.site-footer{
  background:#05080B;position:relative;
  padding:64px 0 26px;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(35,230,168,.5),rgba(255,194,75,.28),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:34px}
.footer-col h4{font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:16px;letter-spacing:.02em}
.footer-col a{display:block;font-size:14px;color:var(--text-2);padding:5px 0}
.footer-col a:hover{color:var(--brand)}
.footer-about p{font-size:14px;color:var(--text-2);line-height:1.9;max-width:340px}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;
  border-top:1px solid var(--line-2);margin-top:44px;padding-top:22px;
  font-size:13px;color:var(--text-3);
}

/* ===== Responsive ===== */
@media (max-width:1024px){
  .nav-list{
    position:fixed;top:68px;left:0;right:0;bottom:0;
    background:#070A0D;
    flex-direction:column;align-items:stretch;gap:0;
    padding:12px 20px 48px;
    border-left:2px solid var(--brand);
    transform:translateX(-102%);
    transition:transform .26s ease;
    overflow-y:auto;z-index:70;
  }
  .nav-list.open{transform:translateX(0)}
  .nav-link{
    font-size:18px;padding:16px 4px;min-height:52px;
    border-bottom:1px solid var(--line-2);border-radius:0;
  }
  .nav-link.active::after{display:none}
  .menu-toggle{display:flex}
  .rel-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:768px){
  .container-x{padding:0 20px}
  .page-hero{padding:40px 0 34px}
  .article-main{padding:40px 0 0}
  .section{padding:56px 0}
  .prose-cn{font-size:15.5px}
  .pn-grid{grid-template-columns:1fr}
  .rel-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:520px){
  .container-x{padding:0 18px}
  .brand-text{display:none}
  .header-actions .btn-sm{display:none}
  .footer-grid{grid-template-columns:1fr}
  .page-hero h1{font-size:24px}
  .back-wrap{padding-bottom:64px}
}

/* roulang page: category1 */
:root{
  --bg-0:#080B0F;
  --bg-1:#0F151C;
  --bg-2:#16202A;
  --brand:#23E6A8;
  --brand-soft:#7CF5D0;
  --accent:#FFC24B;
  --warn:#FF7A45;
  --line:rgba(35,230,168,.14);
  --line-2:rgba(255,255,255,.07);
  --text-1:#E9F2EF;
  --text-2:#9FB0BA;
  --text-3:#6C7C88;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --shadow-card:0 18px 40px -24px rgba(0,0,0,.9),inset 0 1px 0 rgba(255,255,255,.04);
  --shadow-hover:0 0 0 1px rgba(35,230,168,.35),0 0 24px -6px rgba(35,230,168,.45);
  --maxw:1200px;
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:ui-monospace,"JetBrains Mono","SFMono-Regular",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-2);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
}
h1,h2,h3,h4{color:var(--text-1);line-height:1.35;margin:0;font-weight:600}
h1{font-size:clamp(30px,4.2vw,48px);font-weight:700}
h2{font-size:clamp(24px,2.6vw,32px)}
h3{font-size:20px}
p{margin:0}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;display:block;background:var(--bg-2)}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:none}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{
  outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;
}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:0}
.container-x{max-width:var(--maxw);margin:0 auto;padding:0 24px;width:100%}
.section{padding:88px 0}
.section-tight{padding:64px 0}
.section-head{margin-bottom:36px;display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px}
.section-head p{color:var(--text-2);font-size:15.5px;max-width:720px;margin-top:10px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--brand);border:1px solid var(--line);border-radius:999px;padding:5px 12px;
  background:rgba(35,230,168,.05);
}
.badge{
  display:inline-flex;align-items:center;
  font-size:12px;letter-spacing:.04em;padding:3px 10px;border-radius:999px;
  border:1px solid var(--line);color:var(--brand);background:rgba(35,230,168,.06);
  white-space:nowrap;
}
.badge-accent{border-color:rgba(255,194,75,.28);color:var(--accent);background:rgba(255,194,75,.07)}
.badge-plain{border-color:var(--line-2);color:var(--text-3);background:transparent}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);padding:12px 22px;font-size:15px;font-weight:600;
  transition:transform .18s ease,background .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
  border:1px solid transparent;line-height:1.2;
}
.btn-primary{background:var(--brand);color:#06231A;box-shadow:0 10px 26px -16px rgba(35,230,168,.9)}
.btn-primary:hover{background:var(--brand-soft);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(35,230,168,.4),0 0 28px -6px rgba(35,230,168,.6)}
.btn-primary:active{transform:none}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text-1)}
.btn-ghost:hover{border-color:var(--brand);background:rgba(35,230,168,.08);color:var(--brand-soft)}
.btn-sm{padding:9px 16px;font-size:14px}
.card-dark{
  background:var(--bg-1);border:1px solid var(--line-2);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.card-dark:hover{border-color:var(--line);box-shadow:var(--shadow-hover);transform:translateY(-2px)}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(8,11,15,.92);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(35,230,168,.55),rgba(255,194,75,.35),transparent);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:36px;height:36px;border-radius:9px;display:grid;place-items:center;
  font-family:var(--font-mono);font-size:13px;font-weight:700;color:var(--brand);
  border:1px solid var(--line);background:rgba(35,230,168,.07);letter-spacing:.02em;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{font-size:14.5px;font-weight:600;color:var(--text-1);white-space:nowrap}
.brand-text span{font-size:11px;color:var(--text-3);font-family:var(--font-mono);letter-spacing:.06em}
.nav-list{display:flex;align-items:center;gap:2px}
.nav-link{
  position:relative;display:block;padding:8px 12px;font-size:15px;color:var(--text-2);
  border-radius:8px;transition:color .18s ease,background .18s ease;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background:var(--brand);opacity:0;transition:opacity .18s ease;
}
.nav-link:hover{color:var(--brand);background:rgba(35,230,168,.06)}
.nav-link.active{color:var(--brand);text-shadow:0 0 14px rgba(35,230,168,.5)}
.nav-link.active::after{opacity:1}
.header-actions{display:flex;align-items:center;gap:12px}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line-2);
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--text-1);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- hero ---------- */
.hero{
  position:relative;
  padding:96px 0 76px;
  background-image:
    linear-gradient(90deg,rgba(8,11,15,.95) 0%,rgba(8,11,15,.82) 52%,rgba(8,11,15,.6) 100%),
    linear-gradient(180deg,rgba(8,11,15,.55) 0%,rgba(8,11,15,.9) 78%,var(--bg-0) 100%),
    url('/assets/images/backpic/back-1.png');
  background-size:cover,cover,cover;
  background-position:center,center,center;
  background-repeat:no-repeat;
}
.hero-grid{display:grid;grid-template-columns:1.35fr .95fr;gap:44px;align-items:center}
.hero h1{margin:18px 0 16px;max-width:16em}
.hero-sub{font-size:16.5px;line-height:1.9;color:var(--text-2);max-width:38em}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-stats{display:flex;flex-wrap:wrap;gap:28px;margin-top:38px;padding-top:24px;border-top:1px solid var(--line-2)}
.hero-stat b{display:block;font-family:var(--font-mono);font-size:22px;color:var(--text-1);font-weight:700}
.hero-stat span{font-size:13px;color:var(--text-3)}
.hero-card{
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--shadow-card);
}
.hero-card h3{font-size:15px;color:var(--text-2);font-weight:600;letter-spacing:.02em}
.hero-card .hero-card-row{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:14px 0;border-bottom:1px dashed var(--line-2);
}
.hero-card .hero-card-row:last-of-type{border-bottom:none}
.hero-card .hero-card-row span{font-size:14px;color:var(--text-2)}
.hero-card .hero-card-row b{font-family:var(--font-mono);font-size:16px;color:var(--brand)}
.hero-card .hero-card-row b.amber{color:var(--accent)}
.hero-card-foot{margin-top:16px;font-size:12.5px;color:var(--text-3);line-height:1.7}

/* ---------- breadcrumb ---------- */
.crumb{padding:22px 0 0}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3)}
.crumb li::after{content:"/";margin-left:8px;color:var(--text-3)}
.crumb li:last-child::after{content:"";margin:0}
.crumb a{color:var(--text-2);transition:color .18s ease}
.crumb a:hover{color:var(--brand)}
.crumb li[aria-current]{color:var(--brand)}

/* ---------- kpi ---------- */
.kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.kpi{padding:22px;border-radius:var(--r-card);background:var(--bg-1);border:1px solid var(--line-2);box-shadow:var(--shadow-card);transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease}
.kpi:hover{border-color:var(--line);box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.kpi-label{font-size:13px;color:var(--text-3);letter-spacing:.03em}
.kpi-num{font-family:var(--font-mono);font-size:30px;font-weight:700;color:var(--text-1);margin-top:10px;white-space:nowrap}
.kpi-trend{display:inline-flex;align-items:center;gap:6px;margin-top:12px;font-size:12.5px;font-family:var(--font-mono)}
.kpi-trend.up{color:var(--brand)}
.kpi-trend.down{color:var(--warn)}
.overview-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:24px;align-items:stretch}
.overview-figure{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line-2);background:var(--bg-1);box-shadow:var(--shadow-card)}
.overview-figure img{width:100%;height:100%;min-height:240px;object-fit:cover;aspect-ratio:16/9;transition:transform .35s ease}
.overview-figure:hover img{transform:scale(1.03)}
.overview-figure figcaption{padding:12px 16px;font-size:13px;color:var(--text-3);border-top:1px solid var(--line-2)}

/* ---------- catalog rows ---------- */
.catalog{border-top:1px solid var(--line-2)}
.catalog-row{
  display:grid;grid-template-columns:78px 132px 1fr 150px;gap:22px;align-items:center;
  padding:24px 4px;border-bottom:1px solid var(--line-2);transition:background .2s ease,border-color .2s ease;
}
.catalog-row:hover{background:rgba(35,230,168,.04);border-color:var(--line)}
.catalog-index{font-family:var(--font-mono);font-size:22px;font-weight:700;color:var(--text-3)}
.catalog-row:hover .catalog-index{color:var(--brand)}
.catalog-metric{font-family:var(--font-mono);font-size:13px;color:var(--accent);border:1px solid rgba(255,194,75,.28);border-radius:999px;padding:4px 10px;text-align:center;background:rgba(255,194,75,.06);white-space:nowrap}
.catalog-main h3{font-size:17.5px;margin-bottom:8px;transition:color .2s ease}
.catalog-row:hover .catalog-main h3{color:var(--brand-soft)}
.catalog-main p{font-size:14.5px;color:var(--text-2);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.catalog-link{font-size:14px;color:var(--text-2);text-align:right;white-space:nowrap;transition:color .18s ease}
.catalog-link::after{content:" →";color:var(--brand)}
.catalog-row:hover .catalog-link{color:var(--brand)}

/* ---------- table ---------- */
.table-scroll{overflow-x:auto;border:1px solid var(--line-2);border-radius:var(--r-card);background:var(--bg-1);box-shadow:var(--shadow-card)}
table.spec{width:100%;min-width:820px;border-collapse:collapse;font-size:14.5px}
table.spec th,table.spec td{padding:14px 18px;text-align:left;border-bottom:1px solid var(--line-2);white-space:nowrap}
table.spec th{font-size:13px;color:var(--text-3);font-weight:600;letter-spacing:.04em;background:var(--bg-2)}
table.spec td.mono{font-family:var(--font-mono);color:var(--text-1)}
table.spec tbody tr:nth-child(even){background:rgba(255,255,255,.018)}
table.spec tbody tr:hover{background:rgba(35,230,168,.05)}
table.spec tbody tr:last-child td{border-bottom:none}

/* ---------- flow ---------- */
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.flow-item{padding:24px;border-radius:var(--r-card);background:var(--bg-1);border:1px solid var(--line-2);position:relative;box-shadow:var(--shadow-card);transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease}
.flow-item:hover{border-color:var(--line);transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.flow-num{font-family:var(--font-mono);font-size:13px;color:var(--brand);letter-spacing:.1em}
.flow-item h3{font-size:17px;margin:12px 0 10px}
.flow-item p{font-size:14.5px;line-height:1.85}
.split-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center}
.split-figure{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line-2);box-shadow:var(--shadow-card)}
.split-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .35s ease}
.split-figure:hover img{transform:scale(1.03)}
.plain-list{display:grid;gap:14px;margin-top:20px}
.plain-list li{display:flex;gap:12px;font-size:15px;line-height:1.8}
.plain-list li::before{content:"";flex:0 0 auto;width:6px;height:6px;margin-top:11px;border-radius:2px;background:var(--brand)}

/* ---------- faq ---------- */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line-2);border-left:2px solid transparent;padding-left:16px;transition:border-color .18s ease,background .18s ease}
.faq-item.open{border-left-color:var(--brand);background:rgba(35,230,168,.035)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 4px;font-size:17px;font-weight:600;color:var(--text-1);text-align:left;
}
.faq-q:hover{color:var(--brand-soft)}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;border:1px solid var(--line);
  display:grid;place-items:center;color:var(--brand);font-size:15px;font-family:var(--font-mono);
  transition:transform .18s ease,background .18s ease;
}
.faq-item.open .faq-icon{transform:rotate(45deg);background:rgba(35,230,168,.1)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s ease}
.faq-a p{padding:0 4px 22px;font-size:15px;line-height:1.9;color:var(--text-2)}

/* ---------- cta ---------- */
.cta-band{
  border-radius:var(--r-card);border:1px solid var(--line);
  background:linear-gradient(135deg,rgba(35,230,168,.09),rgba(255,194,75,.05) 60%,transparent);
  padding:40px;display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between;
  box-shadow:var(--shadow-card);
}
.cta-band h2{font-size:clamp(22px,2.4vw,28px)}
.cta-band p{margin-top:12px;font-size:15px;max-width:56ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- footer ---------- */
.site-footer{background:#05080B;border-top:1px solid var(--line);margin-top:8px;padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px}
.footer-col h4{font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:16px;letter-spacing:.02em}
.footer-col a{display:block;font-size:14px;color:var(--text-2);padding:5px 0;transition:color .18s ease,transform .18s ease}
.footer-col a:hover{color:var(--brand);transform:translateX(3px)}
.footer-about p{font-size:14px;color:var(--text-2);line-height:1.9;max-width:36ch}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line-2);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  .nav-link{padding:8px 9px;font-size:14.5px}
  .brand-text strong{font-size:13.5px}
}
@media (max-width:1024px){
  .section{padding:64px 0}
  .hero{padding:72px 0 60px}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .overview-grid{grid-template-columns:1fr}
  .kpi-grid{grid-template-columns:repeat(2,1fr)}
  .flow-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .menu-toggle{display:flex}
  .header-actions .btn-primary{display:none}
  .nav-list{
    position:fixed;top:68px;left:0;width:min(84%,340px);height:calc(100% - 68px);
    flex-direction:column;align-items:stretch;gap:6px;padding:22px 20px;
    background:#080B0F;border-left:2px solid var(--brand);border-right:1px solid var(--line-2);
    transform:translateX(-102%);transition:transform .24s ease;overflow-y:auto;
    box-shadow:24px 0 60px -30px rgba(0,0,0,.95);
  }
  .nav-list.open{transform:translateX(0)}
  .nav-link{font-size:18px;min-height:48px;display:flex;align-items:center;padding:10px 14px}
  .nav-link::after{left:14px;right:auto;width:18px;bottom:6px}
}
@media (max-width:768px){
  .container-x{padding:0 20px}
  .section{padding:48px 0}
  .catalog-row{grid-template-columns:1fr;gap:12px;padding:20px 2px}
  .catalog-index{font-size:18px}
  .catalog-metric{justify-self:start}
  .catalog-link{text-align:left}
  .split-grid{grid-template-columns:1fr;gap:24px}
  .kpi-grid{grid-template-columns:repeat(2,1fr)}
  .flow-grid{grid-template-columns:1fr}
  .cta-band{padding:28px}
  .hero-stats{gap:20px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-about p{max-width:none}
}
@media (max-width:520px){
  body{font-size:15.5px}
  .kpi-grid{grid-template-columns:1fr}
  .hero{padding:56px 0 48px}
  .hero-cta .btn{width:100%}
  .cta-actions .btn{width:100%}
  .kpi-num{font-size:26px}
}

/* roulang page: category2 */
:root{
  --bg-0:#080B0F;
  --bg-1:#0F151C;
  --bg-2:#16202A;
  --brand:#23E6A8;
  --brand-soft:#7CF5D0;
  --accent:#FFC24B;
  --warn:#FF7A45;
  --line:rgba(35,230,168,.14);
  --line-2:rgba(255,255,255,.07);
  --text-1:#E9F2EF;
  --text-2:#9FB0BA;
  --text-3:#6C7C88;
  --radius:14px;
  --radius-sm:10px;
  --radius-img:12px;
  --shadow:0 18px 40px -24px rgba(0,0,0,.9), inset 0 1px 0 rgba(255,255,255,.04);
  --glow:0 0 0 1px rgba(35,230,168,.35), 0 0 24px -6px rgba(35,230,168,.45);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:ui-monospace,"JetBrains Mono","SFMono-Regular",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background-color:var(--bg-0);
  background-image:
    radial-gradient(920px 520px at 10% -10%,rgba(35,230,168,.10),transparent 62%),
    radial-gradient(720px 420px at 92% 2%,rgba(255,194,75,.06),transparent 64%);
  background-repeat:no-repeat;
  background-attachment:fixed;
  color:var(--text-2);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  font-weight:400;
}
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-1);line-height:1.35;font-weight:600}
p{margin:0}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.02em}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}

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

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(8,11,15,.92);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line-2);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(35,230,168,.65),rgba(255,194,75,.35),transparent);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px}
.brand{display:flex;align-items:center;gap:11px;min-height:48px}
.brand-mark{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  font-family:var(--font-mono);font-size:14px;font-weight:700;letter-spacing:.06em;
  color:#06231A;background:linear-gradient(140deg,var(--brand),var(--brand-soft));
  box-shadow:0 0 18px -4px rgba(35,230,168,.75);flex:none;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{color:var(--text-1);font-size:16px;font-weight:700;letter-spacing:.02em}
.brand-text em{font-style:normal;font-size:12px;color:var(--text-3);letter-spacing:.06em}
.nav-list{display:flex;align-items:center;gap:2px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:68px;padding:0 13px;
  font-size:15px;color:var(--text-2);transition:color .18s ease;
}
.nav-link::after{
  content:"";position:absolute;left:13px;right:13px;bottom:15px;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transition:transform .2s ease;
}
.nav-link:hover{color:var(--brand)}
.nav-link:hover::after{transform:scaleX(.55)}
.nav-link.active{color:var(--brand);text-shadow:0 0 14px rgba(35,230,168,.55)}
.nav-link.active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--radius-sm);
  background:transparent;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  transition:border-color .18s ease,background .18s ease;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand);transition:transform .2s ease,opacity .2s ease}
.nav-toggle:hover{border-color:var(--brand);background:rgba(35,230,168,.08)}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 移动端抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(3,5,7,.72);opacity:0;visibility:hidden;
  transition:opacity .26s ease,visibility .26s ease;z-index:70;
}
.drawer-mask.open{opacity:1;visibility:visible}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,352px);z-index:80;
  background:#070A0E;border-left:2px solid var(--brand);
  transform:translateX(105%);transition:transform .28s ease;
  padding:84px 22px 32px;overflow-y:auto;
}
.mobile-drawer.open{transform:translateX(0)}
.mobile-drawer a.drawer-link{
  display:flex;align-items:center;min-height:48px;font-size:18px;color:var(--text-2);
  border-bottom:1px solid var(--line-2);transition:color .18s ease,padding-left .18s ease;
}
.mobile-drawer a.drawer-link:hover,.mobile-drawer a.drawer-link.active{color:var(--brand);padding-left:6px}
.mobile-drawer .btn{margin-top:22px;width:100%}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;
  border-radius:var(--radius-sm);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--brand);color:#06231A;box-shadow:0 0 20px -8px rgba(35,230,168,.85)}
.btn-primary:hover{background:var(--brand-soft);transform:translateY(-1px);box-shadow:0 0 28px -6px rgba(35,230,168,.9)}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 16px -8px rgba(35,230,168,.8)}
.btn-outline{background:transparent;border-color:var(--line);color:var(--text-1)}
.btn-outline:hover{border-color:var(--brand);background:rgba(35,230,168,.08);color:var(--brand-soft)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-block{width:100%}

/* 徽章 */
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;
  border:1px solid var(--line);background:rgba(35,230,168,.06);
  font-size:12px;letter-spacing:.04em;color:var(--brand);white-space:nowrap;
}
.badge-accent{color:var(--accent);border-color:rgba(255,194,75,.28);background:rgba(255,194,75,.07)}

/* Hero */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line-2);padding:48px 0 66px}
.page-hero .hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;opacity:.55;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(8,11,15,.97) 0%,rgba(8,11,15,.86) 48%,rgba(8,11,15,.52) 100%);
}
.page-hero .container-x{position:relative;z-index:2}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:22px}
.breadcrumb a{color:var(--text-3);transition:color .18s ease}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:rgba(255,255,255,.22)}
.breadcrumb .current{color:var(--text-2)}
.hero-title{font-size:clamp(30px,4.2vw,48px);font-weight:700;color:#fff;letter-spacing:.01em;max-width:840px}
.hero-sub{margin-top:18px;max-width:680px;font-size:16.5px;line-height:1.9;color:var(--text-2)}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-metrics{display:flex;flex-wrap:wrap;gap:16px 34px;margin-top:34px}
.hero-metric{min-width:132px;padding-left:14px;border-left:2px solid var(--line)}
.hero-metric b{display:block;font-family:var(--font-mono);font-size:24px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;white-space:nowrap}
.hero-metric span{font-size:13px;color:var(--text-3)}

/* 板块 */
.section{padding:88px 0}
.section-alt{background:linear-gradient(180deg,rgba(15,21,28,.55),rgba(8,11,15,0));border-top:1px solid var(--line-2);border-bottom:1px solid var(--line-2)}
.section-head{max-width:760px;margin-bottom:40px}
.section-head h2{font-size:clamp(24px,2.6vw,32px);font-weight:600;margin-bottom:12px}
.section-head p{color:var(--text-2);font-size:16px;line-height:1.9}
.section-head .badge{margin-bottom:16px}

/* KPI */
.kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.kpi-card{
  background:var(--bg-1);border:1px solid var(--line-2);border-radius:var(--radius);
  padding:24px 22px;box-shadow:var(--shadow);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.kpi-card:hover{transform:translateY(-2px);border-color:var(--line);box-shadow:var(--shadow),var(--glow)}
.kpi-label{font-size:13px;color:var(--text-3);letter-spacing:.03em}
.kpi-num{font-family:var(--font-mono);font-size:32px;font-weight:700;color:var(--text-1);font-variant-numeric:tabular-nums;margin:10px 0 6px;white-space:nowrap}
.kpi-num i{font-style:normal;font-size:15px;color:var(--text-2);margin-left:4px;font-weight:500}
.kpi-trend{font-size:13px;font-family:var(--font-mono)}
.trend-up{color:var(--brand)}
.trend-flat{color:var(--accent)}

/* 卡片瀑布 */
.waterfall{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start}
.wf-col{display:flex;flex-direction:column;gap:24px}
.card-dark{
  background:var(--bg-1);border:1px solid var(--line-2);border-radius:var(--radius);
  box-shadow:var(--shadow);overflow:hidden;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card-dark:hover{transform:translateY(-2px);border-color:var(--line);box-shadow:var(--shadow),var(--glow)}
.card-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-2)}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.card-dark:hover .card-cover img{transform:scale(1.03)}
.card-body{padding:24px}
.card-body h3{font-size:20px;font-weight:600;margin-bottom:10px}
.card-body p{font-size:15.5px;line-height:1.85;color:var(--text-2)}
.card-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:18px;font-size:13px;color:var(--text-3)}
.card-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line);display:inline-block}
.card-link{color:var(--brand);font-size:14px;font-weight:600;transition:color .18s ease}
.card-link:hover{color:var(--brand-soft)}

/* 流程 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step{
  position:relative;padding:26px 22px 24px;background:var(--bg-1);border:1px solid var(--line-2);
  border-radius:var(--radius);box-shadow:var(--shadow);transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.step:hover{transform:translateY(-2px);border-color:var(--line);box-shadow:var(--shadow),var(--glow)}
.step-num{font-family:var(--font-mono);font-size:13px;letter-spacing:.12em;color:var(--accent)}
.step h3{font-size:18px;font-weight:600;margin:12px 0 10px}
.step p{font-size:15px;line-height:1.85;color:var(--text-2)}
.step::before{content:"";position:absolute;left:22px;top:0;width:34px;height:2px;background:var(--brand);border-radius:2px}

/* 字段说明 */
.field-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.field{
  display:flex;gap:12px;align-items:flex-start;padding:18px 18px 18px 16px;
  border:1px solid var(--line-2);border-radius:12px;background:rgba(255,255,255,.015);
  transition:border-color .2s ease,background .2s ease;
}
.field:hover{border-color:var(--line);background:rgba(35,230,168,.04)}
.field .tag{
  flex:none;font-family:var(--font-mono);font-size:12px;color:var(--brand);
  border:1px solid var(--line);border-radius:6px;padding:3px 8px;line-height:1.4;
}
.field b{display:block;color:var(--text-1);font-size:15px;font-weight:600;margin-bottom:4px}
.field span{font-size:14px;color:var(--text-2);line-height:1.75}

/* FAQ */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{position:relative;border-bottom:1px solid var(--line-2)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 48px 20px 18px;font-size:17px;font-weight:600;
  color:var(--text-1);transition:color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand)}
.faq-item summary::after{
  content:"+";position:absolute;right:16px;top:18px;font-size:20px;line-height:1;color:var(--brand);
  transition:transform .18s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item[open]::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:2px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 10px rgba(35,230,168,.6);
}
.faq-answer{padding:0 48px 22px 18px;font-size:15px;line-height:1.9;color:var(--text-2);animation:faqIn .18s ease}
@keyframes faqIn{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}

/* CTA */
.cta-band{
  position:relative;overflow:hidden;border:1px solid var(--line);border-radius:18px;
  background:linear-gradient(135deg,rgba(35,230,168,.12),rgba(15,21,28,.92) 58%);
  padding:44px 40px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;
}
.cta-band h2{font-size:clamp(22px,2.4vw,28px);margin-bottom:10px}
.cta-band p{max-width:620px;color:var(--text-2);font-size:15.5px;line-height:1.9}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* 页脚 */
.site-footer{position:relative;background:#05080B;border-top:1px solid var(--line-2);padding:64px 0 28px;margin-top:0}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(35,230,168,.55),rgba(255,194,75,.3),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px}
.footer-col h4{font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:16px;letter-spacing:.02em}
.footer-col a{display:block;font-size:14px;color:var(--text-2);padding:6px 0;transition:color .18s ease}
.footer-col a:hover{color:var(--brand)}
.footer-about p{font-size:14px;color:var(--text-2);line-height:1.9;max-width:360px}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  border-top:1px solid var(--line-2);margin-top:42px;padding-top:22px;
  font-size:13px;color:var(--text-3);
}

/* 响应式 */
@media (max-width:1024px){
  .container-x{padding:0 24px}
  .nav-list{display:none}
  .nav-toggle{display:flex}
  .header-actions .btn-sm{display:none}
  .section{padding:64px 0}
  .kpi-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .field-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .page-hero{padding:40px 0 56px}
}
@media (max-width:768px){
  body{font-size:15.5px}
  .waterfall{grid-template-columns:1fr}
  .kpi-grid{grid-template-columns:1fr}
  .field-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .section{padding:48px 0}
  .cta-band{padding:32px 24px}
  .hero-metrics{gap:14px 24px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:6px}
}
@media (max-width:520px){
  .container-x{padding:0 20px}
  .brand-text em{font-size:11px}
  .hero-metric{min-width:104px}
  .hero-metric b{font-size:21px}
  .kpi-num{font-size:28px}
  .hero-cta .btn{width:100%}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
}

/* roulang page: category3 */
:root{
  --bg-0:#080B0F;
  --bg-1:#0F151C;
  --bg-2:#16202A;
  --brand:#23E6A8;
  --brand-soft:#7CF5D0;
  --accent:#FFC24B;
  --warn:#FF7A45;
  --line:rgba(35,230,168,.14);
  --line-2:rgba(255,255,255,.07);
  --text-1:#E9F2EF;
  --text-2:#9FB0BA;
  --text-3:#6C7C88;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-card:0 18px 40px -24px rgba(0,0,0,.9), inset 0 1px 0 rgba(255,255,255,.04);
  --sh-hover:0 0 0 1px rgba(35,230,168,.35), 0 0 24px -6px rgba(35,230,168,.45);
  --sec-y:88px;
  --mono:ui-monospace,"JetBrains Mono","SFMono-Regular",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
html body{
  margin:0;
  padding:0;
  background:var(--bg-0);
  color:var(--text-2);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
html body h1,html body h2,html body h3,html body h4{color:var(--text-1);margin:0;line-height:1.35;font-weight:600;}
html body p{margin:0;}
html body a{color:inherit;text-decoration:none;transition:color .18s ease,border-color .18s ease,background-color .18s ease;}
html body img{max-width:100%;display:block;}
html body ul{margin:0;padding:0;list-style:none;}
html body button{font-family:inherit;cursor:pointer;}
html body input,html body textarea{font-family:inherit;}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:.02em;}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding-left:32px;padding-right:32px;}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(8,11,15,.92);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line-2);}
.site-header::after{content:"";display:block;height:1px;background:linear-gradient(90deg,transparent,rgba(35,230,168,.55),rgba(35,230,168,.06),transparent);}
.header-inner{height:68px;display:flex;align-items:center;justify-content:space-between;gap:24px;}
.brand{font-size:17px;font-weight:700;color:var(--text-1);letter-spacing:.01em;white-space:nowrap;}
.brand:hover{color:var(--brand-soft);}
.nav-list{display:flex;align-items:center;gap:26px;}
.nav-link{font-size:15px;color:var(--text-2);padding:6px 2px;position:relative;}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .2s ease;}
.nav-link:hover{color:var(--brand);}
.nav-link.active{color:var(--brand);text-shadow:0 0 14px rgba(35,230,168,.55);}
.nav-link.active::after{transform:scaleX(1);}
.header-tools{display:flex;align-items:center;gap:14px;}
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);background:transparent;}
.nav-toggle span{display:block;width:18px;height:2px;margin:0 auto;background:var(--text-1);border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.open span:nth-child(2){opacity:0;}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.mobile-panel{display:none;position:fixed;top:69px;left:0;right:0;bottom:0;background:#070A0D;border-left:2px solid var(--brand);padding:20px 24px 40px;overflow-y:auto;z-index:59;}
.mobile-panel.show{display:block;}
.mobile-panel a{display:flex;align-items:center;min-height:52px;font-size:18px;color:var(--text-1);border-bottom:1px solid var(--line-2);}
.mobile-panel a:hover,.mobile-panel a.active{color:var(--brand);}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-btn);font-size:15px;font-weight:600;padding:12px 22px;border:1px solid transparent;transition:all .18s ease;}
.btn-primary{background:var(--brand);color:#06231A;}
.btn-primary:hover{background:var(--brand-soft);transform:translateY(-1px);box-shadow:0 0 26px -6px rgba(35,230,168,.75);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text-1);}
.btn-ghost:hover{border-color:var(--brand);background:rgba(35,230,168,.08);color:var(--brand-soft);}
.btn-sm{padding:9px 16px;font-size:14px;}
.btn-wide{width:100%;}
.btn:focus-visible,a:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}

/* ---------- badges / tags ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);border-radius:999px;padding:4px 12px;font-size:12px;letter-spacing:.04em;color:var(--brand);background:transparent;}
.badge-accent{border-color:rgba(255,194,75,.35);color:var(--accent);}
.chip{display:inline-flex;align-items:center;border:1px solid var(--line-2);border-radius:999px;padding:4px 12px;font-size:12px;color:var(--text-2);}
.chip:hover{border-color:var(--brand);color:var(--brand);}

/* ---------- hero ---------- */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line-2);}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(90deg,rgba(8,11,15,.97) 0%,rgba(8,11,15,.86) 46%,rgba(8,11,15,.62) 100%),url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center right;filter:saturate(.9);
}
.page-hero > *{position:relative;z-index:1;}
.hero-inner{padding-top:64px;padding-bottom:72px;max-width:840px;}
.crumb{font-size:13px;color:var(--text-3);display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:26px;}
.crumb a{color:var(--text-3);}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:rgba(255,255,255,.22);}
.crumb .now{color:var(--text-2);}
.hero-title{font-size:clamp(30px,4.2vw,48px);font-weight:700;margin:18px 0 18px;letter-spacing:-.01em;}
.hero-sub{font-size:16.5px;color:var(--text-2);max-width:720px;line-height:1.9;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-metrics{display:flex;flex-wrap:wrap;gap:34px;margin-top:44px;padding-top:26px;border-top:1px solid var(--line-2);}
.hero-metrics .m-num{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:26px;font-weight:700;color:var(--brand);line-height:1.2;}
.hero-metrics .m-lab{font-size:13px;color:var(--text-3);margin-top:4px;}

/* ---------- sections ---------- */
.section{padding-top:var(--sec-y);padding-bottom:0;}
.section:last-of-type{padding-bottom:var(--sec-y);}
.section-head{max-width:760px;margin-bottom:42px;}
.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.14em;color:var(--brand);text-transform:uppercase;}
.section-title{font-size:clamp(24px,2.6vw,32px);font-weight:600;margin:12px 0 14px;}
.section-desc{font-size:15.5px;color:var(--text-2);}
.rule{height:1px;background:linear-gradient(90deg,var(--brand),rgba(35,230,168,0));margin:10px 0 0;}

/* ---------- kpi ---------- */
.kpi-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;}
.card-dark{background:var(--bg-1);border:1px solid var(--line-2);border-radius:var(--r-card);box-shadow:var(--sh-card);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;}
.card-dark:hover{transform:translateY(-2px);border-color:var(--line);box-shadow:var(--sh-card),var(--sh-hover);}
.kpi-card{padding:24px 22px;}
.kpi-label{font-size:13.5px;color:var(--text-3);}
.kpi-num{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:30px;font-weight:700;color:var(--text-1);margin:10px 0 6px;line-height:1.15;}
.kpi-foot{font-size:13px;color:var(--text-2);}
.trend-up{color:var(--brand);}
.trend-warn{color:var(--accent);}

/* ---------- timeline ---------- */
.timeline{position:relative;padding-left:40px;}
.timeline::before{content:"";position:absolute;left:11px;top:8px;bottom:8px;width:1px;background:linear-gradient(180deg,rgba(35,230,168,.85),rgba(35,230,168,.25) 55%,rgba(35,230,168,.03));}
.tl-item{position:relative;padding-bottom:34px;}
.tl-item:last-child{padding-bottom:0;}
.tl-dot{position:absolute;left:-34px;top:9px;width:12px;height:12px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 4px rgba(35,230,168,.14),0 0 18px rgba(35,230,168,.6);}
.tl-body{background:var(--bg-1);border:1px solid var(--line-2);border-radius:var(--r-card);padding:22px 24px;box-shadow:var(--sh-card);transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;}
.tl-body:hover{transform:translateY(-2px);border-color:var(--line);box-shadow:var(--sh-card),var(--sh-hover);}
.tl-top{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:10px;}
.tl-step{font-family:var(--mono);font-size:13px;color:var(--brand);border:1px solid var(--line);border-radius:6px;padding:2px 9px;}
.tl-title{font-size:20px;font-weight:600;}
.tl-text{font-size:15.5px;color:var(--text-2);}
.tl-meta{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 24px;margin-top:18px;padding-top:18px;border-top:1px solid var(--line-2);}
.tl-meta dt{font-size:12.5px;color:var(--text-3);font-family:var(--mono);letter-spacing:.06em;}
.tl-meta dd{margin:4px 0 0;font-size:14.5px;color:var(--text-1);}

/* ---------- feature / split ---------- */
.split{display:grid;grid-template-columns:5fr 6fr;gap:44px;align-items:center;}
.split-img{border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line-2);background:var(--bg-2);}
.split-img img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .35s ease;}
.split-img:hover img{transform:scale(1.03);}
.split-list{display:grid;gap:16px;margin-top:24px;}
.split-list li{display:grid;grid-template-columns:auto 1fr;gap:14px;align-items:start;}
.split-list .idx{font-family:var(--mono);font-size:13px;color:var(--accent);border:1px solid rgba(255,194,75,.3);border-radius:6px;padding:2px 8px;margin-top:2px;}
.split-list strong{display:block;color:var(--text-1);font-size:16px;font-weight:600;margin-bottom:4px;}
.split-list span{font-size:15px;color:var(--text-2);}

/* ---------- scenes ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.scene-card{padding:24px 22px;display:flex;flex-direction:column;gap:12px;}
.scene-card h3{font-size:18px;font-weight:600;}
.scene-card p{font-size:15px;color:var(--text-2);}
.scene-tag{align-self:flex-start;font-family:var(--mono);font-size:12px;color:var(--accent);letter-spacing:.06em;}

/* ---------- assurance strip ---------- */
.assure{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;border:1px solid var(--line-2);border-radius:var(--r-card);overflow:hidden;background:var(--bg-1);}
.assure > div{padding:28px 26px;border-right:1px solid var(--line-2);}
.assure > div:last-child{border-right:none;}
.assure h3{font-size:17px;margin-bottom:8px;}
.assure p{font-size:14.5px;color:var(--text-2);}
.assure .n{font-family:var(--mono);font-size:12px;color:var(--brand);letter-spacing:.1em;margin-bottom:12px;display:block;}

/* ---------- qa ---------- */
.qa-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
.qa-card{padding:24px 24px;}
.qa-card h3{font-size:17.5px;margin-bottom:10px;position:relative;padding-left:16px;}
.qa-card h3::before{content:"";position:absolute;left:0;top:7px;width:2px;height:16px;background:var(--brand);border-radius:2px;}
.qa-card p{font-size:15px;color:var(--text-2);}

/* ---------- cta band ---------- */
.cta-band{margin-top:var(--sec-y);background:linear-gradient(135deg,rgba(35,230,168,.09),rgba(8,11,15,0) 62%),var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line-2);}
.cta-inner{display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:center;padding-top:58px;padding-bottom:58px;}
.cta-inner h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:12px;}
.cta-inner p{font-size:15.5px;color:var(--text-2);max-width:600px;}
.cta-points{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px;}
.cta-actions{display:flex;flex-direction:column;gap:14px;}
.cta-note{font-size:12.5px;color:var(--text-3);}

/* ---------- footer ---------- */
.site-footer{background:#05080B;border-top:1px solid var(--line);margin-top:var(--sec-y);}
.footer-grid{display:grid;grid-template-columns:4fr 3fr 3fr 4fr;gap:36px;padding-top:60px;padding-bottom:44px;}
.footer-col h4{font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:16px;}
.footer-col a{display:block;font-size:14px;color:var(--text-2);padding:5px 0;}
.footer-col a:hover{color:var(--brand);}
.footer-about p{font-size:14px;color:var(--text-2);line-height:1.9;}
.footer-about h4{font-size:16px;margin-bottom:14px;}
.footer-bottom{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;border-top:1px solid var(--line-2);padding-top:20px;padding-bottom:28px;font-size:13px;color:var(--text-3);}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .kpi-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}
}
@media (max-width:1023px){
  :root{--sec-y:64px;}
  .container-x{padding-left:24px;padding-right:24px;}
  .nav-list{display:none;}
  .nav-toggle{display:flex;}
  .kpi-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .split{grid-template-columns:1fr;gap:30px;}
  .scene-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .assure{grid-template-columns:1fr;}
  .assure > div{border-right:none;border-bottom:1px solid var(--line-2);}
  .assure > div:last-child{border-bottom:none;}
  .cta-inner{grid-template-columns:1fr;gap:26px;padding-top:46px;padding-bottom:46px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;padding-top:48px;}
}
@media (max-width:767px){
  html body{font-size:15.5px;}
  .container-x{padding-left:20px;padding-right:20px;}
  .hero-inner{padding-top:44px;padding-bottom:52px;}
  .hero-metrics{gap:24px;}
  .hero-metrics .m-num{font-size:22px;}
  .timeline{padding-left:30px;}
  .timeline::before{left:7px;}
  .tl-dot{left:-30px;width:10px;height:10px;top:11px;}
  .tl-meta{grid-template-columns:1fr;}
  .scene-grid{grid-template-columns:1fr;}
  .qa-grid{grid-template-columns:1fr;}
  .kpi-grid{grid-template-columns:1fr;}
  .header-tools .btn{display:none;}
}
@media (max-width:519px){
  .hero-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category4 */
:root{
  --bg-0:#080B0F;
  --bg-1:#0F151C;
  --bg-2:#16202A;
  --brand:#23E6A8;
  --brand-soft:#7CF5D0;
  --accent:#FFC24B;
  --warn:#FF7A45;
  --line:rgba(35,230,168,.14);
  --line-2:rgba(255,255,255,.07);
  --text-1:#E9F2EF;
  --text-2:#9FB0BA;
  --text-3:#6C7C88;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --shadow-card:0 18px 40px -24px rgba(0,0,0,.9), inset 0 1px 0 rgba(255,255,255,.04);
  --shadow-hover:0 0 0 1px rgba(35,230,168,.35), 0 0 24px -6px rgba(35,230,168,.45);
  --sec-y:88px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-2);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.88;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:none;background:none;}
h1,h2,h3,h4{margin:0;color:var(--text-1);line-height:1.35;font-weight:600;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
.mono{font-family:ui-monospace,"JetBrains Mono","SFMono-Regular",Menlo,Consolas,monospace;font-variant-numeric:tabular-nums;}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.sec{padding:var(--sec-y) 0;}
.sec-head{max-width:760px;margin-bottom:44px;}
.sec-head h2{font-size:clamp(24px,2.6vw,32px);margin-bottom:14px;}
.sec-head p{color:var(--text-2);font-size:16px;line-height:1.9;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.08em;color:var(--brand);
  border:1px solid var(--line);border-radius:999px;
  padding:5px 14px;margin-bottom:18px;background:rgba(35,230,168,.05);
}

/* ===== 导航 ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(8,11,15,.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line-2);
}
.site-header::after{
  content:"";display:block;height:1px;width:100%;
  background:linear-gradient(90deg,rgba(35,230,168,0) 0%,rgba(35,230,168,.55) 30%,rgba(255,194,75,.45) 70%,rgba(35,230,168,0) 100%);
}
.header-inner{
  height:68px;display:flex;align-items:center;justify-content:space-between;gap:20px;
}
.logo-mark{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-dot{
  width:30px;height:30px;border-radius:9px;flex-shrink:0;
  background:linear-gradient(140deg,var(--brand) 0%,#0d8f6a 100%);
  display:flex;align-items:center;justify-content:center;
  color:#06231A;font-weight:700;font-size:14px;
  box-shadow:0 0 18px -4px rgba(35,230,168,.6);
}
.logo-text{color:var(--text-1);font-weight:700;font-size:16px;letter-spacing:.01em;line-height:1.2;}
.logo-text small{display:block;font-size:11px;font-weight:400;color:var(--text-3);letter-spacing:.14em;margin-top:2px;}
.nav-list{display:flex;align-items:center;gap:2px;}
.nav-link{
  position:relative;display:inline-block;
  padding:10px 13px;border-radius:8px;
  font-size:15px;color:var(--text-2);
  transition:color .2s ease,background .2s ease;
  white-space:nowrap;
}
.nav-link:hover{color:var(--brand);background:rgba(35,230,168,.06);}
.nav-link.active{color:var(--text-1);}
.nav-link.active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;
  background:var(--brand);border-radius:2px;
  box-shadow:0 0 12px 0 rgba(35,230,168,.85);
}
.nav-link.active{text-shadow:0 0 14px rgba(35,230,168,.45);}
.header-cta{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 18px;border-radius:var(--r-btn);
  background:var(--brand);color:#06231A;font-weight:600;font-size:14px;
  transition:transform .18s ease,background .18s ease,box-shadow .18s ease;
  box-shadow:0 0 0 rgba(35,230,168,0);
}
.header-cta:hover{background:var(--brand-soft);transform:translateY(-1px);box-shadow:0 0 22px -6px rgba(35,230,168,.8);}
.header-cta:active{transform:translateY(0);}
.burger{
  display:none;width:44px;height:44px;border:1px solid var(--line-2);border-radius:10px;
  align-items:center;justify-content:center;color:var(--text-1);background:rgba(255,255,255,.02);
}
.burger:hover{border-color:var(--line);color:var(--brand);}
.mobile-drawer{
  display:none;position:fixed;inset:68px 0 0 0;z-index:55;
  background:rgba(8,11,15,.985);border-left:2px solid var(--brand);
  padding:24px 22px 40px;overflow-y:auto;
}
.mobile-drawer.open{display:block;}
.mobile-drawer a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:52px;font-size:18px;color:var(--text-1);
  border-bottom:1px solid var(--line-2);
}
.mobile-drawer a.active{color:var(--brand);}
.mobile-drawer a i{font-size:13px;color:var(--text-3);}
.drawer-cta{
  display:block;margin-top:24px;text-align:center;padding:14px;border-radius:var(--r-btn);
  background:var(--brand);color:#06231A;font-weight:600;
}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  transition:transform .18s ease,background .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--brand);color:#06231A;}
.btn-primary:hover{background:var(--brand-soft);transform:translateY(-1px);box-shadow:0 0 26px -6px rgba(35,230,168,.85);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;border:1px solid var(--line);color:var(--text-1);}
.btn-ghost:hover{border-color:var(--brand);background:rgba(35,230,168,.08);color:var(--brand);}
.btn-block{width:100%;}

/* ===== 面包屑 ===== */
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-3);padding-top:26px;
}
.crumbs a{color:var(--text-3);}
.crumbs a:hover{color:var(--brand);}
.crumbs span.sep{color:rgba(255,255,255,.18);}
.crumbs .current{color:var(--text-2);}

/* ===== Hero ===== */
.hero{
  position:relative;margin-top:22px;border-radius:18px;overflow:hidden;
  border:1px solid var(--line-2);
  background-image:linear-gradient(100deg,rgba(8,11,15,.97) 0%,rgba(8,11,15,.88) 45%,rgba(8,11,15,.55) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.hero-grid{
  display:grid;grid-template-columns:7fr 5fr;gap:40px;
  padding:64px 44px;align-items:center;
}
.hero h1{font-size:clamp(30px,4.2vw,48px);font-weight:700;margin-bottom:18px;}
.hero h1 .hl{color:var(--brand);}
.hero-sub{font-size:17px;color:var(--text-2);max-width:560px;margin-bottom:28px;line-height:1.9;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px;}
.hero-mini{display:flex;flex-wrap:wrap;gap:28px;}
.hero-mini div{font-size:13px;color:var(--text-3);}
.hero-mini strong{display:block;font-size:20px;color:var(--text-1);font-weight:600;margin-bottom:2px;}
.float-card{
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);padding:24px;
}
.float-card h3{font-size:15px;color:var(--text-2);font-weight:500;margin-bottom:18px;letter-spacing:.02em;}
.gauge-list li{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:13px 0;border-bottom:1px dashed var(--line-2);
}
.gauge-list li:last-child{border-bottom:none;}
.gauge-list .k{font-size:14px;color:var(--text-2);}
.gauge-list .v{font-size:16px;color:var(--brand);font-weight:600;}
.gauge-list .v.amber{color:var(--accent);}
.bar{height:4px;border-radius:4px;background:rgba(255,255,255,.07);overflow:hidden;margin-top:8px;}
.bar i{display:block;height:100%;background:linear-gradient(90deg,var(--brand),var(--brand-soft));border-radius:4px;}

/* ===== KPI ===== */
.kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.kpi-card{
  background:var(--bg-1);border:1px solid var(--line-2);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--shadow-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.kpi-card:hover{transform:translateY(-2px);border-color:var(--line);box-shadow:var(--shadow-card),var(--shadow-hover);}
.kpi-card .label{font-size:13px;color:var(--text-3);letter-spacing:.03em;margin-bottom:10px;}
.kpi-card .num{font-size:clamp(26px,3vw,34px);font-weight:700;color:var(--text-1);line-height:1.1;}
.kpi-card .trend{font-size:12px;margin-top:10px;display:inline-flex;align-items:center;gap:6px;}
.trend.up{color:var(--brand);}
.trend.amber{color:var(--accent);}

/* ===== 对比矩阵 ===== */
.matrix-wrap{
  border:1px solid var(--line-2);border-radius:var(--r-card);
  background:var(--bg-1);box-shadow:var(--shadow-card);
  overflow-x:auto;overflow-y:hidden;
}
.matrix{width:100%;min-width:900px;border-collapse:separate;border-spacing:0;font-size:14.5px;}
.matrix thead th{
  position:sticky;top:0;z-index:3;
  background:var(--bg-2);color:var(--text-1);font-weight:600;
  text-align:left;padding:16px 18px;border-bottom:1px solid var(--line);
  white-space:nowrap;
}
.matrix thead th .tag{display:block;font-size:11px;font-weight:400;color:var(--text-3);margin-top:4px;letter-spacing:.04em;}
.matrix tbody td{
  padding:16px 18px;border-bottom:1px solid var(--line-2);
  color:var(--text-2);vertical-align:top;line-height:1.8;
}
.matrix tbody tr:last-child td{border-bottom:none;}
.matrix tbody tr:nth-child(even) td{background:rgba(255,255,255,.014);}
.matrix tbody tr:hover td{background:rgba(35,230,168,.045);}
.matrix .sticky-col{
  position:sticky;left:0;z-index:2;
  background:var(--bg-1);color:var(--text-1);font-weight:600;
  min-width:158px;box-shadow:1px 0 0 var(--line);
}
.matrix thead .sticky-col{background:var(--bg-2);z-index:4;}
.matrix tbody tr:nth-child(even) .sticky-col{background:#121A22;}
.matrix tbody tr:hover .sticky-col{background:#152A26;}
.matrix .yes{color:var(--brand);font-weight:600;}
.matrix .no{color:var(--text-3);}
.matrix .warnx{color:var(--accent);font-weight:600;}
.matrix-note{font-size:13px;color:var(--text-3);margin-top:14px;display:flex;align-items:center;gap:8px;}

/* ===== 风险场景卡 ===== */
.risk-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.risk-card{
  background:var(--bg-1);border:1px solid var(--line-2);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--shadow-card);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.risk-card:hover{transform:translateY(-2px);border-color:var(--line);box-shadow:var(--shadow-card),var(--shadow-hover);}
.risk-icon{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(35,230,168,.09);border:1px solid var(--line);color:var(--brand);
  font-size:17px;margin-bottom:16px;
}
.risk-icon.amber{background:rgba(255,194,75,.1);border-color:rgba(255,194,75,.28);color:var(--accent);}
.risk-card h3{font-size:18px;margin-bottom:10px;}
.risk-card p{font-size:14.5px;line-height:1.9;color:var(--text-2);}
.risk-card .do{
  margin-top:16px;padding-top:14px;border-top:1px dashed var(--line-2);
  font-size:13.5px;color:var(--brand);display:flex;gap:8px;align-items:flex-start;
}

/* ===== 图文并排 ===== */
.split{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;}
.split-img{
  border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line-2);
  background:var(--bg-2);aspect-ratio:16/9;
}
.split-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.split-img:hover img{transform:scale(1.03);}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:12px 0;border-bottom:1px dashed var(--line-2);font-size:15px;color:var(--text-2);
}
.check-list li:last-child{border-bottom:none;}
.check-list i{color:var(--brand);margin-top:6px;font-size:13px;}

/* ===== 流程 ===== */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.step{
  position:relative;background:var(--bg-1);border:1px solid var(--line-2);
  border-radius:var(--r-card);padding:26px 22px;box-shadow:var(--shadow-card);
}
.step .idx{
  font-family:ui-monospace,"JetBrains Mono",monospace;
  font-size:13px;color:var(--accent);letter-spacing:.14em;margin-bottom:12px;display:block;
}
.step h3{font-size:17px;margin-bottom:8px;}
.step p{font-size:14px;line-height:1.85;color:var(--text-2);}

/* ===== FAQ ===== */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--line-2);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 14px 22px 0;text-align:left;
  font-size:17px;font-weight:600;color:var(--text-1);
  transition:color .2s ease,padding .2s ease;
}
.faq-q:hover{color:var(--brand);}
.faq-q .qm{font-size:14px;color:var(--text-3);transition:transform .18s ease;flex-shrink:0;}
.faq-item.open .faq-q{color:var(--brand);border-left:2px solid var(--brand);padding-left:16px;}
.faq-item.open .qm{transform:rotate(45deg);color:var(--brand);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .22s ease;
  font-size:15px;line-height:1.9;color:var(--text-2);
}
.faq-item.open .faq-a{max-height:400px;}
.faq-a .inner{padding:0 40px 24px 16px;}

/* ===== CTA + 表单 ===== */
.cta-panel{
  display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start;
  background:var(--bg-1);border:1px solid var(--line);border-radius:18px;
  padding:48px 44px;box-shadow:var(--shadow-card);
  background-image:linear-gradient(120deg,rgba(35,230,168,.06) 0%,rgba(8,11,15,0) 46%);
}
.cta-panel h2{font-size:clamp(24px,2.6vw,32px);margin-bottom:16px;}
.point-list li{
  display:flex;gap:14px;align-items:flex-start;padding:14px 0;
  border-bottom:1px dashed var(--line-2);font-size:15px;color:var(--text-2);
}
.point-list li:last-child{border-bottom:none;}
.point-list .pi{
  width:30px;height:30px;flex-shrink:0;border-radius:9px;
  background:rgba(35,230,168,.09);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--brand);font-size:12px;
}
.form-card{
  background:var(--bg-2);border:1px solid var(--line-2);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--shadow-card);
}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;color:var(--text-2);margin-bottom:8px;letter-spacing:.02em;}
.field label .req{color:var(--accent);margin-left:4px;}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border-radius:var(--r-btn);
  background:var(--bg-1);border:1px solid var(--line-2);color:var(--text-1);
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.field textarea{min-height:110px;resize:vertical;line-height:1.8;}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);background:#101A20;
  box-shadow:0 0 0 4px rgba(35,230,168,.14);
}
.field .hint{font-size:12px;color:var(--text-3);margin-top:8px;}
.field .err{font-size:12px;color:var(--warn);margin-top:6px;display:none;}
.form-note{font-size:12px;color:var(--text-3);margin-top:14px;line-height:1.8;}
.form-ok{
  display:none;margin-top:16px;padding:12px 14px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:rgba(35,230,168,.08);
  color:var(--brand);font-size:13.5px;
}

/* ===== 页脚 ===== */
.site-footer{
  background:#05080B;border-top:1px solid var(--line);margin-top:20px;
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(35,230,168,0) 0%,rgba(35,230,168,.5) 50%,rgba(35,230,168,0) 100%);
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;
  padding:64px 0 40px;
}
.footer-col h4{font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:18px;letter-spacing:.04em;}
.footer-col a{display:block;font-size:14px;color:var(--text-2);padding:6px 0;}
.footer-col a:hover{color:var(--brand);}
.footer-about p{font-size:14px;color:var(--text-2);line-height:1.9;max-width:320px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  border-top:1px solid var(--line-2);padding:22px 0 30px;
  font-size:13px;color:var(--text-3);
}

/* ===== 响应式 ===== */
@media (max-width:1280px){
  :root{--sec-y:76px;}
}
@media (max-width:1024px){
  :root{--sec-y:64px;}
  .container-x{padding:0 24px;}
  .nav-list,.header-cta{display:none;}
  .burger{display:flex;}
  .hero-grid{grid-template-columns:1fr;gap:32px;padding:48px 32px;}
  .kpi-grid{grid-template-columns:repeat(2,1fr);gap:18px;}
  .risk-grid{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .split{grid-template-columns:1fr;gap:28px;}
  .cta-panel{grid-template-columns:1fr;padding:36px 28px;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:48px 0 32px;}
}
@media (max-width:768px){
  :root{--sec-y:52px;}
  body{font-size:15.5px;}
  .container-x{padding:0 20px;}
  .hero-grid{padding:40px 22px;}
  .hero h1{margin-bottom:14px;}
  .hero-mini{gap:20px;}
  .kpi-grid{grid-template-columns:1fr;gap:16px;}
  .risk-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .sec-head{margin-bottom:32px;}
  .faq-q{font-size:16px;padding-right:8px;}
  .faq-a .inner{padding-right:8px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .matrix-note{font-size:12px;}
}
@media (max-width:520px){
  .hero-actions .btn{width:100%;}
  .header-inner{height:62px;}
  .mobile-drawer{inset:62px 0 0 0;}
  .logo-text{font-size:15px;}
}

/* roulang page: category5 */
:root{
  --bg-0:#080B0F;
  --bg-1:#0F151C;
  --bg-2:#16202A;
  --brand:#23E6A8;
  --brand-soft:#7CF5D0;
  --accent:#FFC24B;
  --warn:#FF7A45;
  --line:rgba(35,230,168,.14);
  --line-2:rgba(255,255,255,.07);
  --text-1:#E9F2EF;
  --text-2:#9FB0BA;
  --text-3:#6C7C88;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-card:0 18px 40px -24px rgba(0,0,0,.9), inset 0 1px 0 rgba(255,255,255,.04);
  --shadow-hover:0 0 0 1px rgba(35,230,168,.35), 0 0 24px -6px rgba(35,230,168,.45);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:ui-monospace,"JetBrains Mono",Menlo,Consolas,monospace;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-2);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--text-1);font-weight:600;line-height:1.35;}
p{margin:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;}

.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1.2;border:1px solid transparent;
  cursor:pointer;transition:transform .18s ease,background .18s ease,box-shadow .18s ease,border-color .18s ease,color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#06231A;}
.btn-primary:hover{background:var(--brand-soft);transform:translateY(-1px);box-shadow:0 0 22px -6px rgba(35,230,168,.75);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text-1);}
.btn-ghost:hover{border-color:var(--brand);background:rgba(35,230,168,.08);color:var(--brand-soft);}
.btn-sm{padding:9px 16px;font-size:14px;}
.btn-block{width:100%;}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;border:1px solid var(--line);
  background:transparent;color:var(--brand);
  font-size:12px;letter-spacing:.04em;line-height:1.6;
}
.badge-accent{border-color:rgba(255,194,75,.32);color:var(--accent);}
.badge-mono{font-family:var(--font-mono);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(8,11,15,.92);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.site-header::after{
  content:"";display:block;height:1px;
  background:linear-gradient(90deg,transparent,rgba(35,230,168,.55),rgba(255,194,75,.35),transparent);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:68px;gap:20px;}
.brand-logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:36px;height:36px;border-radius:10px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(145deg,rgba(35,230,168,.22),rgba(35,230,168,.06));
  border:1px solid var(--line);color:var(--brand);
  font-family:var(--font-mono);font-size:13px;font-weight:700;letter-spacing:.02em;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;color:var(--text-1);font-size:15px;font-weight:600;}
.brand-text em{font-style:normal;font-size:11px;color:var(--text-3);letter-spacing:.18em;font-family:var(--font-mono);margin-top:3px;}

.nav-list{display:flex;align-items:center;gap:4px;}
.nav-link{
  position:relative;display:block;padding:10px 14px;border-radius:8px;
  font-size:15px;color:var(--text-2);transition:color .18s ease,background .18s ease;
}
.nav-link:hover{color:var(--brand);background:rgba(35,230,168,.06);}
.nav-link.active{color:var(--brand);text-shadow:0 0 14px rgba(35,230,168,.55);}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 10px rgba(35,230,168,.85);
}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--line-2);background:var(--bg-1);color:var(--text-1);
  cursor:pointer;font-size:16px;align-items:center;justify-content:center;
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand);}

.mobile-drawer{
  position:fixed;top:0;left:0;bottom:0;width:min(320px,86vw);z-index:70;
  background:#080B0F;border-right:2px solid var(--line);
  box-shadow:24px 0 60px -30px rgba(0,0,0,.95);
  transform:translateX(-102%);transition:transform .24s ease;
  padding:24px 20px;display:flex;flex-direction:column;gap:6px;
}
.mobile-drawer.open{transform:translateX(0);}
.mobile-drawer .drawer-title{font-size:13px;letter-spacing:.14em;color:var(--text-3);font-family:var(--font-mono);margin-bottom:10px;}
.mobile-drawer a.drawer-link{
  display:flex;align-items:center;min-height:48px;padding:0 14px;border-radius:10px;
  font-size:17px;color:var(--text-1);border:1px solid transparent;
}
.mobile-drawer a.drawer-link:hover{background:rgba(35,230,168,.08);border-color:var(--line);color:var(--brand);}
.mobile-drawer a.drawer-link.active{color:var(--brand);border-color:var(--line);}
.drawer-close{align-self:flex-end;background:none;border:none;color:var(--text-2);font-size:22px;cursor:pointer;padding:6px 10px;}
.drawer-cta{margin-top:auto;}
.drawer-mask{position:fixed;inset:0;background:rgba(3,5,8,.7);z-index:65;opacity:0;pointer-events:none;transition:opacity .24s ease;}
.drawer-mask.open{opacity:1;pointer-events:auto;}

/* ---------- 板块通用 ---------- */
.section{padding:88px 0;}
.section-alt{background:linear-gradient(180deg,rgba(15,21,28,.85),rgba(8,11,15,.95));border-top:1px solid var(--line-2);border-bottom:1px solid var(--line-2);}
.section-head{max-width:760px;margin-bottom:44px;}
.eyebrow{
  display:inline-block;font-family:var(--font-mono);font-size:12px;letter-spacing:.16em;
  color:var(--brand);text-transform:uppercase;
}
.section-title{font-size:clamp(24px,2.6vw,32px);font-weight:600;margin:12px 0 14px;line-height:1.35;}
.section-lead{font-size:16px;line-height:1.9;color:var(--text-2);}

/* ---------- Hero ---------- */
.page-hero{position:relative;overflow:hidden;padding:64px 0 68px;border-bottom:1px solid var(--line-2);}
.hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.36;}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(8,11,15,.62) 0%,rgba(8,11,15,.86) 52%,var(--bg-0) 100%),
             linear-gradient(90deg,rgba(8,11,15,.94) 0%,rgba(8,11,15,.45) 62%,rgba(8,11,15,.75) 100%);
}
.hero-inner{position:relative;z-index:1;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:22px;}
.breadcrumb a{color:var(--text-3);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:var(--text-3);opacity:.6;}
.breadcrumb .current{color:var(--text-2);}
.page-hero h1{
  font-size:clamp(30px,4.2vw,46px);font-weight:700;line-height:1.28;
  margin:16px 0 18px;max-width:880px;color:#FFFFFF;
}
.hero-sub{font-size:17px;line-height:1.9;color:var(--text-2);max-width:760px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-metrics{display:flex;flex-wrap:wrap;gap:14px;margin-top:38px;}
.metric-chip{
  background:var(--bg-1);border:1px solid var(--line);border-radius:12px;
  padding:14px 20px;box-shadow:var(--shadow-card);min-width:150px;
}
.metric-num{
  display:block;font-family:var(--font-mono);font-variant-numeric:tabular-nums;
  font-size:26px;font-weight:700;color:var(--brand);line-height:1.2;white-space:nowrap;
}
.metric-label{display:block;font-size:13px;color:var(--text-3);margin-top:6px;}

/* ---------- 问题分类速览 ---------- */
.topic-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.topic-card{
  background:var(--bg-1);border:1px solid var(--line-2);border-radius:var(--radius-card);
  padding:26px 24px;box-shadow:var(--shadow-card);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.topic-card:hover{transform:translateY(-2px);border-color:var(--line);box-shadow:var(--shadow-card),var(--shadow-hover);}
.topic-icon{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(35,230,168,.1);border:1px solid var(--line);color:var(--brand);font-size:17px;margin-bottom:16px;
}
.topic-card h3{font-size:18px;margin-bottom:10px;}
.topic-card p{font-size:14.5px;line-height:1.85;color:var(--text-2);}

/* ---------- FAQ 双栏 ---------- */
.faq-layout{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:32px;align-items:start;}
.faq-list{border-top:1px solid var(--line-2);}
.faq-item{border-bottom:1px solid var(--line-2);border-left:2px solid transparent;transition:border-color .18s ease,background .18s ease;}
.faq-item:hover{background:rgba(255,255,255,.015);}
.faq-item.open{border-left-color:var(--brand);background:rgba(35,230,168,.03);}
.faq-q{
  width:100%;background:none;border:none;cursor:pointer;text-align:left;
  display:flex;align-items:flex-start;justify-content:space-between;gap:18px;
  padding:22px 20px;color:var(--text-1);font-size:17px;font-weight:600;line-height:1.6;
}
.faq-q:hover{color:var(--brand-soft);}
.faq-icon{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;border:1px solid var(--line);
  color:var(--brand);display:flex;align-items:center;justify-content:center;
  font-size:15px;line-height:1;margin-top:2px;transition:transform .18s ease,background .18s ease;
}
.faq-item.open .faq-icon{transform:rotate(45deg);background:rgba(35,230,168,.14);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .18s ease;}
.faq-item.open .faq-a{max-height:520px;}
.faq-a-inner{padding:0 20px 24px 20px;font-size:15px;line-height:1.9;color:var(--text-2);}
.faq-a-inner strong{color:var(--text-1);font-weight:600;}

/* ---------- 侧栏表单 ---------- */
.side-card{
  position:sticky;top:88px;
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 24px;box-shadow:var(--shadow-card);
}
.side-card h3{font-size:19px;margin-bottom:10px;}
.side-card .side-lead{font-size:14px;line-height:1.85;color:var(--text-2);margin-bottom:22px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;color:var(--text-2);margin-bottom:8px;}
.field .req{color:var(--accent);margin-left:4px;}
.field input,.field select,.field textarea{
  width:100%;padding:11px 13px;border-radius:var(--radius-btn);
  background:var(--bg-2);border:1px solid var(--line-2);color:var(--text-1);
  font-size:14.5px;font-family:inherit;line-height:1.6;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field textarea{min-height:104px;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(35,230,168,.14);
}
.form-note{font-size:12px;color:var(--text-3);line-height:1.7;margin-top:12px;}
.form-status{display:none;margin-top:14px;font-size:13px;color:var(--brand);border:1px solid var(--line);border-radius:10px;padding:10px 12px;background:rgba(35,230,168,.06);}
.form-status.show{display:block;}

/* ---------- 处理流程 ---------- */
.flow-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;}
.flow-item{
  position:relative;background:var(--bg-1);border:1px solid var(--line-2);
  border-radius:var(--radius-card);padding:26px 22px;box-shadow:var(--shadow-card);
  transition:border-color .2s ease,transform .2s ease;
}
.flow-item:hover{border-color:var(--line);transform:translateY(-2px);}
.flow-num{
  font-family:var(--font-mono);font-size:13px;color:var(--accent);
  letter-spacing:.12em;display:block;margin-bottom:14px;
}
.flow-item h3{font-size:17px;margin-bottom:10px;}
.flow-item p{font-size:14.5px;line-height:1.85;color:var(--text-2);}

/* ---------- 图文旅程 ---------- */
.check-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:36px;align-items:center;}
.check-figure{
  border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--line-2);
  background:var(--bg-2);aspect-ratio:16/10;
}
.check-figure img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.check-figure:hover img{transform:scale(1.03);}
.check-list{display:flex;flex-direction:column;gap:16px;margin-top:26px;}
.check-item{display:flex;gap:14px;align-items:flex-start;}
.check-item i{color:var(--brand);font-size:15px;margin-top:6px;flex-shrink:0;}
.check-item h4{font-size:16px;margin-bottom:4px;}
.check-item p{font-size:14.5px;line-height:1.85;color:var(--text-2);}

/* ---------- CTA 条 ---------- */
.cta-strip{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:linear-gradient(135deg,rgba(35,230,168,.08),rgba(8,11,15,.4) 55%,rgba(255,194,75,.06));
}
.cta-inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:26px;padding:52px 0;
}
.cta-inner h2{font-size:clamp(22px,2.4vw,28px);margin-bottom:10px;}
.cta-inner p{font-size:15px;color:var(--text-2);line-height:1.85;max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- 页脚 ---------- */
.site-footer{background:#05080B;border-top:1px solid var(--line);padding:64px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;}
.footer-col h4{font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:16px;}
.footer-col a{display:block;font-size:14px;color:var(--text-2);margin-bottom:10px;transition:color .18s ease,padding-left .18s ease;}
.footer-col a:hover{color:var(--brand);padding-left:4px;}
.footer-about p{font-size:14px;line-height:1.9;color:var(--text-2);max-width:340px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line-2);
  font-size:13px;color:var(--text-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .nav-link{padding:10px 10px;font-size:14.5px;}
}
@media (max-width:1024px){
  .nav-list{display:none;}
  .nav-toggle{display:flex;}
  .header-actions .btn-primary{display:none;}
  .section{padding:64px 0;}
  .page-hero{padding:48px 0 56px;}
  .topic-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .faq-layout{grid-template-columns:minmax(0,1fr);}
  .side-card{position:static;}
  .flow-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .check-layout{grid-template-columns:minmax(0,1fr);gap:28px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:768px){
  .container-x{padding:0 20px;}
  .section{padding:52px 0;}
  .hero-metrics{gap:10px;}
  .metric-chip{flex:1 1 46%;min-width:0;padding:12px 16px;}
  .metric-num{font-size:22px;}
  .cta-inner{padding:44px 0;flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:26px;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:560px){
  body{font-size:15.5px;}
  .topic-grid,.flow-grid{grid-template-columns:minmax(0,1fr);}
  .page-hero h1{font-size:28px;}
  .hero-actions .btn{width:100%;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .faq-q{font-size:16px;padding:18px 14px;}
  .faq-a-inner{padding:0 14px 20px 14px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
}