/* roulang page: index */
:root{
  --bg-0:#060A12;
  --bg-1:#0B1220;
  --surface:rgba(18,26,42,.72);
  --surface-solid:#121A2A;
  --line:rgba(120,160,200,.16);
  --primary:#16E0A8;
  --primary-hi:#3BF0BE;
  --primary-deep:#0A9E7A;
  --accent:#FF7A45;
  --accent-2:#7C5CFF;
  --text-1:#EAF2FF;
  --text-2:#9FB0C8;
  --text-3:#6B7C94;
  --r-card:14px;
  --r-img:12px;
  --r-btn:12px;
  --r-input:10px;
  --sh-1:0 8px 24px -12px rgba(0,0,0,.6);
  --sh-2:0 16px 40px -16px rgba(0,0,0,.75);
  --glow:0 0 0 1px rgba(22,224,168,.35), 0 10px 30px -10px rgba(22,224,168,.55);
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0}
ul,ol{list-style:none}
img{max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,select,textarea{font:inherit}

.site-body{
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--bg-0);
  color:var(--text-1);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
.site-body h1,.site-body h2,.site-body h3,.site-body h4{line-height:1.28;font-weight:700}
.site-body a:focus-visible,.site-body button:focus-visible,.site-body input:focus-visible,.site-body select:focus-visible,.site-body textarea:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums;font-weight:700}

/* ---------- header ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:60;transition:height .24s ease}
.site-header::before{content:"";position:absolute;inset:0;background:rgba(11,18,32,.3);-webkit-backdrop-filter:blur(16px) saturate(140%);backdrop-filter:blur(16px) saturate(140%);border-bottom:1px solid rgba(255,255,255,.07);box-shadow:0 10px 34px -22px rgba(0,0,0,.95);transition:background .24s ease,border-color .24s ease}
.site-header.scrolled::before{background:rgba(11,18,32,.95);border-bottom-color:var(--line)}
.nav-wrap{position:relative;display:flex;align-items:center;gap:20px;height:72px;transition:height .24s ease}
.site-header.scrolled .nav-wrap{height:64px}
.logo{display:flex;align-items:center;gap:10px;flex:none}
.logo-mark{position:relative;width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--primary-hi),var(--primary-deep));box-shadow:0 0 18px -4px rgba(22,224,168,.75);flex:none}
.logo-mark::after{content:"";position:absolute;left:7px;top:8px;width:16px;height:3px;border-radius:2px;background:rgba(4,20,16,.85);box-shadow:0 5px 0 rgba(4,20,16,.85),0 10px 0 rgba(4,20,16,.85)}
.logo-text{font-size:17px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.nav-links{display:none}
@media (min-width:1024px){
  .nav-links{display:flex;align-items:center;gap:4px;margin-left:10px;flex:1}
}
.nav-link{position:relative;padding:9px 12px;font-size:14.5px;color:var(--text-2);border-radius:8px;transition:color .2s ease,background .2s ease;white-space:nowrap}
.nav-link::after{content:"";position:absolute;left:50%;bottom:3px;width:0;height:2px;border-radius:2px;background:var(--primary);transform:translateX(-50%);transition:width .24s ease;box-shadow:0 0 8px rgba(22,224,168,.85)}
.nav-link:hover{color:var(--text-1);background:rgba(255,255,255,.045)}
.nav-link:hover::after,.nav-link.active::after{width:56%}
.nav-link.active{color:var(--primary)}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.icon-btn{width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;border-radius:12px;border:1px solid var(--line);color:var(--text-2);background:rgba(255,255,255,.02);transition:color .2s ease,border-color .2s ease,background .2s ease}
.icon-btn:hover{color:var(--primary);border-color:rgba(22,224,168,.5);background:rgba(22,224,168,.08)}
.menu-btn{display:inline-flex}
@media (min-width:1024px){.menu-btn{display:none}}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:10px 20px;border-radius:var(--r-btn);font-size:14px;font-weight:600;border:1px solid transparent;transition:transform .18s ease,filter .18s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;cursor:pointer;text-align:center}
.btn-primary{background:linear-gradient(135deg,var(--primary-hi),var(--primary));color:#04241B;box-shadow:var(--glow)}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 0 0 1px rgba(22,224,168,.5),0 16px 36px -12px rgba(22,224,168,.75)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(22,224,168,.3),0 4px 12px -6px rgba(22,224,168,.5)}
.btn-ghost{background:transparent;border-color:rgba(120,160,200,.34);color:var(--primary)}
.btn-ghost:hover{border-color:var(--primary);background:rgba(22,224,168,.12);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-lg{min-height:52px;padding:14px 28px;font-size:15px}
.btn-sm{min-height:40px;padding:8px 16px;font-size:13.5px}
@media (max-width:520px){.btn-sm{min-height:44px}}

/* ---------- drawer ---------- */
.nav-mask{position:fixed;inset:0;background:rgba(3,6,12,.68);opacity:0;pointer-events:none;transition:opacity .28s ease;z-index:70}
.nav-mask.open{opacity:1;pointer-events:auto}
.nav-drawer{position:fixed;top:0;right:0;bottom:0;width:min(330px,86vw);z-index:80;padding:18px;background:rgba(11,18,32,.97);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);border-left:1px solid var(--line);transform:translateX(102%);transition:transform .3s cubic-bezier(.4,0,.2,1);overflow-y:auto}
.nav-drawer.open{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:6px 4px 18px;border-bottom:1px solid var(--line);margin-bottom:14px}
.drawer-links{display:grid;gap:6px}
.drawer-link{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:48px;padding:12px 14px;border-radius:10px;border:1px solid transparent;color:var(--text-2);font-size:15px;transition:all .2s ease}
.drawer-link:hover,.drawer-link.active{color:var(--primary);background:rgba(22,224,168,.09);border-color:rgba(22,224,168,.26)}
.drawer-cta{margin-top:18px}

/* ---------- hero ---------- */
.hero{position:relative;isolation:isolate;overflow:hidden;padding:132px 0 104px}
.hero-bg{position:absolute;inset:0;z-index:-3;background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;opacity:.42}
.hero-shade{position:absolute;inset:0;z-index:-2;background:linear-gradient(180deg,rgba(6,10,18,.74) 0%,rgba(6,10,18,.88) 46%,var(--bg-0) 100%)}
.hero-grid{position:absolute;inset:0;z-index:-1;background-image:repeating-linear-gradient(0deg,rgba(120,160,200,.06) 0 1px,transparent 1px 60px),repeating-linear-gradient(90deg,rgba(120,160,200,.06) 0 1px,transparent 1px 60px);-webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.85),transparent 78%);mask-image:linear-gradient(180deg,rgba(0,0,0,.85),transparent 78%)}
.hero-inner{display:grid;grid-template-columns:1fr;gap:44px;align-items:center}
@media (min-width:1024px){.hero-inner{grid-template-columns:7fr 5fr;gap:52px}}
.hero-tag{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;font-size:12.5px;color:var(--primary);background:rgba(22,224,168,.1);border:1px solid rgba(22,224,168,.3);margin-bottom:22px}
.hero-tag i{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary);display:inline-block}
.hero-title{font-size:clamp(32px,5vw,56px);font-weight:800;line-height:1.18;letter-spacing:-.01em}
.hero-title .hl{color:var(--primary);position:relative;white-space:nowrap}
.hero-title .hl::after{content:"";position:absolute;left:0;right:0;bottom:4px;height:8px;border-radius:4px;background:rgba(22,224,168,.16);z-index:-1}
.hero-sub{margin-top:20px;font-size:clamp(16px,2vw,19px);color:var(--text-1);font-weight:600}
.hero-desc{margin-top:14px;max-width:600px;font-size:15.5px;line-height:1.85;color:var(--text-2)}
.hero-cta{margin-top:34px;display:flex;flex-wrap:wrap;gap:14px}
.hero-note{margin-top:22px;font-size:13px;color:var(--text-3)}
.mini-bar{background:var(--surface);border:1px solid rgba(255,255,255,.08);border-radius:16px;padding:8px;box-shadow:var(--sh-1);-webkit-backdrop-filter:blur(14px) saturate(140%);backdrop-filter:blur(14px) saturate(140%);display:grid;gap:2px}
.mini-item{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:15px 16px;border-radius:12px;transition:background .2s ease}
.mini-item:hover{background:rgba(255,255,255,.045)}
.mini-label{font-size:13.5px;color:var(--text-3)}
.mini-value{font-size:15px;color:var(--primary);font-variant-numeric:tabular-nums;font-weight:700}

/* ---------- sections ---------- */
.section{padding:88px 0}
.section-tight{padding:64px 0}
.section-head{max-width:760px;margin-bottom:46px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;color:var(--primary);letter-spacing:.04em;margin-bottom:14px}
.eyebrow::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--primary)}
.section-title{font-size:clamp(24px,3vw,32px);font-weight:800;letter-spacing:-.01em}
.section-sub{margin-top:14px;font-size:15.5px;color:var(--text-2);line-height:1.85}

/* ---------- KPI ---------- */
.kpi-section{position:relative;z-index:12;margin-top:-58px;padding-bottom:8px}
@media (max-width:768px){.kpi-section{margin-top:-34px}}
.kpi-card{height:100%;padding:24px;border-radius:var(--r-card);background:var(--surface);border:1px solid rgba(255,255,255,.08);-webkit-backdrop-filter:blur(14px) saturate(140%);backdrop-filter:blur(14px) saturate(140%);box-shadow:var(--sh-1);transition:transform .22s ease,border-color .22s ease,box-shadow .24s ease}
.kpi-card:hover{transform:translateY(-3px);border-color:rgba(22,224,168,.36);box-shadow:var(--sh-2)}
.kpi-value{font-size:32px;font-weight:800;color:var(--primary);font-variant-numeric:tabular-nums;line-height:1.1}
.kpi-name{margin-top:12px;font-size:14.5px;font-weight:600;color:var(--text-1)}
.kpi-desc{margin-top:6px;font-size:12.5px;line-height:1.7;color:var(--text-3);min-height:42px}
.kpi-track{margin-top:18px;height:3px;border-radius:3px;background:rgba(120,160,200,.16);overflow:hidden}
.kpi-fill{height:100%;border-radius:3px;background:linear-gradient(90deg,var(--primary-deep),var(--primary));width:var(--w,70%);transition:filter .25s ease}
.kpi-card:hover .kpi-fill{filter:brightness(1.25) saturate(1.1);background:linear-gradient(90deg,var(--primary),var(--primary-hi))}

/* ---------- bento ---------- */
.bento{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:1024px){.bento{grid-template-columns:repeat(12,1fr);gap:22px}}
.bento-main{grid-column:span 12}
.bento-side{grid-column:span 12;display:grid;gap:20px}
@media (min-width:640px) and (max-width:1023px){.bento-side{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){
  .bento-main{grid-column:span 7}
  .bento-side{grid-column:span 5}
}
.bento-row3{grid-column:span 12;display:grid;gap:20px}
@media (min-width:640px){.bento-row3{grid-template-columns:repeat(3,1fr)}}
.card{position:relative;padding:24px;border-radius:var(--r-card);background:var(--surface);border:1px solid rgba(255,255,255,.08);-webkit-backdrop-filter:blur(14px) saturate(140%);backdrop-filter:blur(14px) saturate(140%);transition:transform .22s ease,border-color .22s ease,box-shadow .24s ease;overflow:hidden}
.card:hover{transform:translateY(-2px);border-color:rgba(22,224,168,.36);box-shadow:var(--sh-2)}
.card-lg{padding:28px}
.card-title{font-size:19px;font-weight:700}
.card-text{margin-top:10px;font-size:14.5px;line-height:1.8;color:var(--text-2)}
.card-media{margin-top:20px;border-radius:var(--r-img);overflow:hidden;border:1px solid rgba(255,255,255,.08);aspect-ratio:16/9;background:rgba(22,224,168,.08)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.card:hover .card-media img{transform:scale(1.04)}
.point-list{margin-top:18px;display:grid;gap:10px}
.point{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--text-2);line-height:1.7}
.point::before{content:"";flex:none;margin-top:9px;width:6px;height:6px;border-radius:2px;background:var(--primary);box-shadow:0 0 8px rgba(22,224,168,.7)}
.geo{width:44px;height:44px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;border:1px solid rgba(22,224,168,.34);background:rgba(22,224,168,.1);color:var(--primary);flex:none}
.geo-violet{border-color:rgba(124,92,255,.36);background:rgba(124,92,255,.12);color:#B9A6FF}
.geo-orange{border-color:rgba(255,122,69,.36);background:rgba(255,122,69,.12);color:#FFA783}
.hrow{display:flex;align-items:center;gap:16px}
.hrow-body{min-width:0}
.hrow-title{font-size:16px;font-weight:600}
.hrow-text{margin-top:6px;font-size:13.5px;line-height:1.7;color:var(--text-3)}
.badge{display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;font-size:12px;color:var(--primary);background:rgba(22,224,168,.1);border:1px solid rgba(22,224,168,.28)}

/* ---------- compare ---------- */
.compare{border-radius:var(--r-card);border:1px solid var(--line);background:var(--surface);overflow:hidden;position:relative;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}
.compare::after{content:"";position:absolute;left:50%;top:0;bottom:0;width:1px;background:var(--line);display:none}
@media (min-width:768px){.compare::after{display:block}}
.compare-head{display:grid;grid-template-columns:1fr;gap:0;border-bottom:1px solid var(--line)}
@media (min-width:768px){.compare-head{grid-template-columns:1fr 1fr}}
.compare-head span{padding:18px 24px;font-size:14px;font-weight:600;color:var(--text-2)}
.compare-head span:last-child{color:var(--primary)}
.cmp-row{display:grid;grid-template-columns:1fr;gap:16px;padding:20px 24px;border-bottom:1px solid var(--line);transition:background .2s ease}
@media (min-width:768px){.cmp-row{grid-template-columns:1fr 1fr;gap:0}}
.cmp-row:last-child{border-bottom:0}
.cmp-row:hover{background:rgba(255,255,255,.03)}
.cmp-cell{min-width:0;padding-right:0}
@media (min-width:768px){
  .cmp-cell{padding-right:28px}
  .cmp-cell:last-child{padding-right:0;padding-left:28px}
}
.cmp-name{font-size:15px;font-weight:600}
.cmp-text{margin-top:6px;font-size:13.5px;color:var(--text-3);line-height:1.7}
.cmp-bar{margin-top:12px;height:10px;border-radius:999px;background:rgba(120,160,200,.14);overflow:hidden}
.cmp-bar span{display:block;height:100%;border-radius:999px;width:var(--w,50%)}
.cmp-left .cmp-bar span{background:linear-gradient(90deg,rgba(107,124,148,.55),var(--text-3))}
.cmp-right .cmp-bar span{background:linear-gradient(90deg,var(--primary-deep),var(--primary-hi));box-shadow:0 0 14px -2px rgba(22,224,168,.75);transition:box-shadow .25s ease}
.cmp-row:hover .cmp-right .cmp-bar span{box-shadow:0 0 20px 1px rgba(22,224,168,.9)}
.cmp-num{margin-top:10px;font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums}
.cmp-right .cmp-num{color:var(--primary)}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:768px){.steps{grid-template-columns:repeat(3,1fr)}}
.step{position:relative;padding:26px 24px;border-radius:var(--r-card);border:1px solid rgba(255,255,255,.08);background:var(--surface);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);transition:border-color .22s ease,transform .22s ease}
.step:hover{border-color:rgba(22,224,168,.36);transform:translateY(-2px)}
.step-idx{font-size:26px;font-weight:800;color:rgba(22,224,168,.45);font-variant-numeric:tabular-nums;line-height:1}
.step-title{margin-top:14px;font-size:17px;font-weight:600}
.step-text{margin-top:8px;font-size:14px;line-height:1.8;color:var(--text-2)}
.step-line{display:none}
@media (min-width:768px){
  .step:not(:last-child)::after{content:"";position:absolute;right:-11px;top:44px;width:22px;height:1px;background:var(--line)}
}

/* ---------- posts ---------- */
.post-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:640px){.post-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.post-grid{grid-template-columns:repeat(3,1fr)}}
.post-card{display:flex;flex-direction:column;height:100%;border-radius:var(--r-card);overflow:hidden;background:var(--surface);border:1px solid rgba(255,255,255,.08);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);transition:transform .22s ease,border-color .22s ease,box-shadow .24s ease}
.post-card:hover{transform:translateY(-2px);border-color:rgba(22,224,168,.4);box-shadow:var(--sh-2)}
.post-cover{position:relative;display:block;aspect-ratio:16/9;overflow:hidden;background:rgba(22,224,168,.08)}
.post-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.post-card:hover .post-cover img{transform:scale(1.05)}
.post-badge{position:absolute;left:12px;top:12px;padding:4px 10px;border-radius:999px;font-size:12px;color:var(--primary);background:rgba(6,10,18,.74);border:1px solid rgba(22,224,168,.34);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}
.post-body{display:flex;flex-direction:column;gap:10px;flex:1;padding:18px 20px 20px}
.post-title{font-size:18px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-title a:hover{color:var(--primary)}
.post-excerpt{font-size:14px;line-height:1.7;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3)}
.post-more{color:var(--primary);font-weight:600;white-space:nowrap}
.post-more:hover{color:var(--primary-hi)}
.empty-state{grid-column:1/-1;min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;text-align:center;padding:36px 24px;border-radius:var(--r-card);border:1px dashed var(--line);background:rgba(18,26,42,.5)}
.empty-icon{width:54px;height:54px;border-radius:14px;border:1px solid rgba(22,224,168,.34);background:rgba(22,224,168,.1);position:relative}
.empty-icon::after{content:"";position:absolute;left:16px;top:22px;width:22px;height:2px;border-radius:2px;background:var(--primary);box-shadow:0 6px 0 rgba(22,224,168,.55)}
.empty-text{font-size:15px;color:var(--text-2)}
.more-wrap{margin-top:36px;display:flex;justify-content:center}

/* ---------- voices ---------- */
.voices{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:768px){.voices{grid-template-columns:repeat(3,1fr)}}
.voice{padding:24px;border-radius:var(--r-card);background:var(--surface);border:1px solid rgba(255,255,255,.08);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);transition:border-color .22s ease,transform .22s ease}
.voice:hover{border-color:rgba(22,224,168,.32);transform:translateY(-2px)}
.voice-text{font-size:15px;line-height:1.85;color:var(--text-1)}
.voice-meta{margin-top:16px;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3);display:flex;align-items:center;gap:10px}
.voice-avatar{width:30px;height:30px;border-radius:50%;background:linear-gradient(135deg,rgba(22,224,168,.5),rgba(124,92,255,.5));flex:none}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px}
.faq-item{border-radius:var(--r-card);background:var(--surface);border:1px solid rgba(255,255,255,.08);overflow:hidden;transition:border-color .22s ease,box-shadow .22s ease}
.faq-item.open{border-color:rgba(22,224,168,.42);box-shadow:0 0 0 1px rgba(22,224,168,.16),var(--sh-1)}
.faq-q{width:100%;display:flex;align-items:center;gap:16px;min-height:60px;padding:18px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--text-1);transition:color .2s ease}
.faq-q:hover{color:var(--primary)}
.faq-num{flex:none;font-size:12px;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;letter-spacing:.04em}
.faq-arrow{margin-left:auto;flex:none;color:var(--text-3);transition:transform .22s ease,color .22s ease}
.faq-item.open .faq-arrow{transform:rotate(180deg);color:var(--primary)}
.faq-a{position:relative;max-height:0;overflow:hidden;transition:max-height .26s ease}
.faq-a::before{content:"";position:absolute;left:22px;top:4px;bottom:20px;width:3px;border-radius:2px;background:var(--primary);opacity:0;transition:opacity .22s ease}
.faq-item.open .faq-a::before{opacity:1}
.faq-a-inner{padding:0 22px 22px 48px;font-size:15px;line-height:1.9;color:var(--text-2)}
@media (max-width:520px){
  .faq-a-inner{padding-left:22px}
  .faq-a::before{display:none}
}

/* ---------- form ---------- */
.cta-grid{display:grid;grid-template-columns:1fr;gap:32px;align-items:start}
@media (min-width:1024px){.cta-grid{grid-template-columns:5fr 7fr;gap:48px}}
.cta-points{margin-top:24px;display:grid;gap:12px}
.form-card{padding:28px;border-radius:16px;background:var(--surface);border:1px solid rgba(255,255,255,.08);-webkit-backdrop-filter:blur(14px) saturate(140%);backdrop-filter:blur(14px) saturate(140%);box-shadow:var(--sh-1)}
.form-grid{display:grid;grid-template-columns:1fr;gap:16px}
@media (min-width:640px){.form-grid{grid-template-columns:1fr 1fr}}
.field{display:flex;flex-direction:column;gap:8px}
.field-full{grid-column:1/-1}
.field label{font-size:13px;color:var(--text-2)}
.field input,.field select,.field textarea{width:100%;min-height:46px;padding:12px 14px;border-radius:var(--r-input);background:var(--surface-solid);border:1px solid var(--line);color:var(--text-1);font-size:15px;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease}
.field textarea{min-height:120px;resize:vertical;line-height:1.75}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:hover,.field select:hover,.field textarea:hover{border-color:rgba(120,160,200,.34)}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 2px rgba(22,224,168,.28);background:#0F1726}
.form-actions{margin-top:20px;display:flex;flex-wrap:wrap;align-items:center;gap:14px}
.form-note{font-size:12.5px;line-height:1.7;color:var(--text-3);margin-top:16px}
.form-alert{display:none;margin-top:16px;padding:12px 16px;border-radius:10px;border-left:3px solid var(--primary);background:rgba(22,224,168,.1);font-size:14px;color:var(--text-1)}
.form-alert.show{display:block}

/* ---------- footer ---------- */
.site-footer{margin-top:0;background:var(--bg-1);border-top:1px solid var(--line);padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px}
@media (min-width:768px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:28px}}
@media (min-width:768px){.footer-col+.footer-col{border-left:1px solid var(--line);padding-left:26px}}
.footer-brand{display:flex;align-items:center;gap:10px}
.footer-desc{margin-top:16px;font-size:13.5px;line-height:1.85;color:var(--text-2);max-width:340px}
.footer-title{font-size:14px;font-weight:700;color:var(--text-1);margin-bottom:14px}
.footer-nav{display:grid;gap:2px}
.footer-link{display:inline-flex;align-items:center;font-size:14px;color:var(--text-2);padding:6px 0;transition:color .2s ease,transform .2s ease}
.footer-link:hover{color:var(--primary);transform:translateX(2px)}
.footer-info{display:grid;gap:10px;font-size:13.5px;color:var(--text-2);line-height:1.8}
.footer-info b{color:var(--text-1);font-weight:600}
.footer-bottom{margin-top:48px;border-top:1px solid var(--line);padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-3)}
.footer-bottom a{color:var(--text-2)}
.footer-bottom a:hover{color:var(--primary)}

@media (max-width:520px){
  .container{padding:0 20px}
  .section{padding:56px 0}
  .section-tight{padding:44px 0}
  .hero{padding:112px 0 84px}
  .card,.kpi-card,.form-card{padding:20px}
}

/* roulang page: category1 */
:root{
  --bg-0:#060A12;
  --bg-1:#0B1220;
  --surface:rgba(18,26,42,.72);
  --surface-solid:#121A2A;
  --line:rgba(120,160,200,.16);
  --line-strong:rgba(120,160,200,.3);
  --primary:#16E0A8;
  --primary-hi:#3BF0BE;
  --primary-deep:#0A9E7A;
  --accent:#FF7A45;
  --accent-2:#7C5CFF;
  --text-1:#EAF2FF;
  --text-2:#9FB0C8;
  --text-3:#6B7C94;
  --r-card:14px;
  --r-img:12px;
  --r-btn:12px;
  --r-input:10px;
  --sh-1:0 8px 24px -12px rgba(0,0,0,.6);
  --sh-2:0 16px 40px -16px rgba(0,0,0,.75);
  --sh-glow:0 0 0 1px rgba(22,224,168,.35),0 10px 30px -10px rgba(22,224,168,.55);
  --sec:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
html body{
  margin:0;
  padding:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text-1);
  background:var(--bg-0);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
html body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    repeating-linear-gradient(0deg,rgba(120,160,200,.055) 0 1px,transparent 1px 64px),
    repeating-linear-gradient(90deg,rgba(120,160,200,.055) 0 1px,transparent 1px 64px);
}
html body>*{position:relative;z-index:1}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
h1,h2,h3,h4,p{margin:0}
ul{margin:0;padding:0;list-style:none}
::selection{background:rgba(22,224,168,.3);color:#fff}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:60;
  background:rgba(11,18,32,.28);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
  box-shadow:0 8px 30px -20px rgba(0,0,0,.9);
  transition:background .24s ease,box-shadow .24s ease,height .24s ease;
}
.site-header.is-scrolled{
  background:rgba(11,18,32,.95);
  box-shadow:0 14px 36px -22px rgba(0,0,0,.95);
}
.nav-wrap{display:flex;align-items:center;gap:24px;height:72px;transition:height .24s ease}
.site-header.is-scrolled .nav-wrap{height:64px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:28px;height:28px;border-radius:9px;
  background:linear-gradient(140deg,var(--primary) 0%,var(--primary-deep) 55%,var(--accent-2) 130%);
  box-shadow:0 0 0 1px rgba(255,255,255,.14),0 6px 18px -8px rgba(22,224,168,.7);
  position:relative;
}
.logo-mark::after{
  content:"";position:absolute;inset:8px 8px 8px 8px;border-radius:4px;
  background:rgba(6,10,18,.72);
}
.logo-text{font-size:17px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:12px;flex:1;min-width:0}
.nav-link{
  position:relative;
  padding:9px 12px;
  font-size:15px;
  color:var(--text-2);
  border-radius:10px;
  white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:50%;right:50%;bottom:3px;height:2px;
  background:var(--primary);border-radius:2px;
  box-shadow:0 0 10px rgba(22,224,168,.75);
  transition:left .22s ease,right .22s ease;
}
.nav-link:hover{color:var(--text-1);background:rgba(255,255,255,.04)}
.nav-link:hover::after{left:12px;right:12px}
.nav-link.active{color:var(--primary-hi)}
.nav-link.active::after{left:12px;right:12px}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.icon-btn{
  width:40px;height:40px;border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--text-2);
  border:1px solid transparent;
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.icon-btn:hover{color:var(--primary-hi);border-color:var(--line-strong);background:rgba(255,255,255,.04)}
.menu-btn{display:none}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;
  font-size:15px;font-weight:600;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  transition:transform .18s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
  min-height:44px;
}
.btn-primary{
  background:var(--primary);
  color:#04140F;
  box-shadow:var(--sh-glow);
}
.btn-primary:hover{transform:translateY(-1px);background:var(--primary-hi);box-shadow:0 0 0 1px rgba(22,224,168,.5),0 14px 34px -12px rgba(22,224,168,.75)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(22,224,168,.35),0 6px 16px -10px rgba(22,224,168,.6)}
.btn-ghost{
  background:transparent;
  color:var(--primary-hi);
  border-color:var(--line-strong);
}
.btn-ghost:hover{border-color:var(--primary);background:rgba(22,224,168,.12)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{padding:9px 16px;font-size:14px;min-height:40px}
.btn-lg{padding:15px 30px;font-size:16px}

/* ---------- drawer ---------- */
.drawer{position:fixed;inset:0;z-index:80;pointer-events:none;visibility:hidden}
.drawer.open{pointer-events:auto;visibility:visible}
.drawer-mask{
  position:absolute;inset:0;background:rgba(4,7,13,.66);
  opacity:0;transition:opacity .28s ease;
}
.drawer.open .drawer-mask{opacity:1}
.drawer-panel{
  position:absolute;top:0;right:0;bottom:0;width:min(320px,86vw);
  background:rgba(11,18,32,.96);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border-left:1px solid var(--line);
  padding:26px 22px;
  display:flex;flex-direction:column;gap:8px;
  transform:translateX(102%);
  transition:transform .3s cubic-bezier(.22,.68,.32,1);
}
.drawer.open .drawer-panel{transform:translateX(0)}
.drawer-title{font-size:13px;color:var(--text-3);letter-spacing:.08em;margin-bottom:6px}
.drawer-link{
  display:flex;align-items:center;min-height:48px;padding:0 14px;
  border-radius:12px;font-size:16px;color:var(--text-2);
  border:1px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.drawer-link:hover{background:rgba(255,255,255,.05);color:var(--text-1)}
.drawer-link.active{color:var(--primary-hi);border-color:var(--line-strong);background:rgba(22,224,168,.08)}
.drawer-close{align-self:flex-end;margin-bottom:6px}

/* ---------- hero ---------- */
.page-hero{
  position:relative;
  padding:150px 0 74px;
  background-image:linear-gradient(to top,rgba(6,10,18,.96) 6%,rgba(6,10,18,.72) 52%,rgba(6,10,18,.86) 100%),url(/assets/images/backpic/back-2.png);
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:150px;
  background:linear-gradient(to top,var(--bg-0),rgba(6,10,18,0));
  pointer-events:none;
}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13.5px;color:var(--text-3);margin-bottom:22px;
}
.breadcrumb a{color:var(--text-2);transition:color .2s ease}
.breadcrumb a:hover{color:var(--primary-hi)}
.breadcrumb .sep{color:var(--text-3)}
.breadcrumb .current{color:var(--text-2)}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:48px;align-items:center}
.badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  font-size:12.5px;color:var(--primary-hi);
  background:rgba(22,224,168,.1);
  border:1px solid rgba(22,224,168,.28);
  margin-bottom:20px;
}
.badge .dot{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 8px var(--primary)}
.hero-title{
  font-size:clamp(32px,4.6vw,54px);
  line-height:1.22;
  font-weight:800;
  letter-spacing:.005em;
  margin-bottom:18px;
}
.hero-title em{font-style:normal;color:var(--primary-hi)}
.hero-sub{font-size:17px;color:var(--text-2);max-width:520px;margin-bottom:30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-media{
  position:relative;
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid rgba(255,255,255,.08);
  box-shadow:var(--sh-2);
  background:rgba(18,26,42,.5);
}
.hero-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.hero-media .media-cap{
  position:absolute;left:14px;bottom:14px;right:14px;
  display:flex;align-items:center;gap:10px;
  padding:10px 14px;border-radius:12px;
  background:rgba(9,14,24,.74);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border:1px solid rgba(255,255,255,.08);
  font-size:13px;color:var(--text-2);
}
.hero-media .media-cap b{color:var(--primary-hi)}

/* ---------- metrics ---------- */
.section{padding:var(--sec) 0}
.section-tight{padding:calc(var(--sec) - 22px) 0}
.sec-head{margin-bottom:34px;max-width:720px}
.sec-head h2{font-size:clamp(23px,2.6vw,30px);line-height:1.3;font-weight:700;margin-bottom:12px}
.sec-head p{color:var(--text-2);font-size:15.5px}
.kicker{
  display:inline-block;font-size:12.5px;letter-spacing:.12em;
  color:var(--primary);margin-bottom:12px;font-weight:600;
}
.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:-38px;position:relative;z-index:3}
.metric-card{
  background:var(--surface);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border:1px solid rgba(255,255,255,.08);
  border-radius:var(--r-card);
  padding:22px 22px 20px;
  box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.metric-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(22,224,168,.32)}
.metric-value{font-size:30px;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;line-height:1.2}
.metric-name{font-size:14.5px;color:var(--text-1);margin-top:6px;font-weight:600}
.metric-note{font-size:12.5px;color:var(--text-3);margin-top:4px}
.metric-bar{height:3px;border-radius:3px;background:rgba(120,160,200,.18);margin-top:16px;overflow:hidden}
.metric-bar span{display:block;height:100%;border-radius:3px;background:linear-gradient(90deg,var(--primary-deep),var(--primary));transition:width .4s ease,background .3s ease}
.metric-card:hover .metric-bar span{background:linear-gradient(90deg,var(--primary),var(--primary-hi));width:100%!important}

/* ---------- split ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.split-body h2{font-size:clamp(23px,2.6vw,30px);line-height:1.32;font-weight:700;margin-bottom:16px}
.split-body p{color:var(--text-2);margin-bottom:16px;font-size:15.5px}
.split-media{
  border-radius:var(--r-card);overflow:hidden;
  border:1px solid rgba(255,255,255,.08);
  box-shadow:var(--sh-2);
}
.split-media img{width:100%;aspect-ratio:5/4;object-fit:cover}
.check-list{display:grid;gap:12px;margin-top:22px}
.check-item{display:flex;gap:12px;align-items:flex-start}
.check-mark{
  flex-shrink:0;width:22px;height:22px;border-radius:7px;margin-top:3px;
  background:rgba(22,224,168,.14);
  border:1px solid rgba(22,224,168,.34);
  position:relative;
}
.check-mark::after{
  content:"";position:absolute;left:7px;top:4px;width:6px;height:10px;
  border-right:2px solid var(--primary);border-bottom:2px solid var(--primary);
  transform:rotate(42deg);
}
.check-item span{font-size:15px;color:var(--text-2)}
.check-item b{color:var(--text-1);font-weight:600}

/* ---------- bar cards ---------- */
.bar-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:44px}
.bar-card{
  display:flex;gap:18px;align-items:flex-start;
  padding:24px;
  border-radius:var(--r-card);
  background:linear-gradient(135deg,rgba(18,26,42,.86),rgba(11,18,32,.7));
  border:1px solid rgba(255,255,255,.08);
  box-shadow:var(--sh-1);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.bar-card:hover{transform:translateY(-3px);border-color:rgba(22,224,168,.34);box-shadow:var(--sh-2)}
.bar-icon{
  flex-shrink:0;width:46px;height:46px;border-radius:13px;
  border:1px solid rgba(22,224,168,.3);
  background:rgba(22,224,168,.1);
  position:relative;
}
.bar-icon::before{
  content:"";position:absolute;inset:13px;
  border-radius:4px;
  border:2px solid var(--primary);
}
.bar-icon.alt{border-color:rgba(255,122,69,.34);background:rgba(255,122,69,.1)}
.bar-icon.alt::before{border-color:var(--accent);border-radius:50%}
.bar-body h3{font-size:18px;font-weight:700;margin-bottom:8px}
.bar-body p{font-size:14.5px;color:var(--text-2);line-height:1.75}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.tag{
  font-size:12px;padding:4px 11px;border-radius:999px;
  color:var(--text-2);border:1px solid var(--line);background:rgba(255,255,255,.03);
}
.tag.hi{color:var(--primary-hi);border-color:rgba(22,224,168,.3);background:rgba(22,224,168,.08)}

/* ---------- focus list ---------- */
.focus-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:44px;align-items:start}
.focus-intro h2{font-size:clamp(23px,2.6vw,30px);line-height:1.32;font-weight:700;margin-bottom:14px}
.focus-intro p{color:var(--text-2);font-size:15.5px}
.focus-list{display:grid;gap:14px}
.focus-item{
  display:grid;grid-template-columns:auto 1fr;gap:16px;
  padding:20px 22px;border-radius:var(--r-card);
  background:rgba(18,26,42,.62);
  border:1px solid rgba(255,255,255,.07);
  transition:background .22s ease,border-color .22s ease,transform .22s ease;
}
.focus-item:hover{background:rgba(22,224,168,.06);border-color:rgba(22,224,168,.28);transform:translateX(3px)}
.focus-num{
  font-size:12px;font-weight:700;color:var(--primary);
  font-variant-numeric:tabular-nums;letter-spacing:.06em;padding-top:4px;
}
.focus-item h3{font-size:16.5px;font-weight:600;margin-bottom:6px}
.focus-item p{font-size:14.5px;color:var(--text-2);line-height:1.75}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px;max-width:880px}
.faq-item{
  border-radius:var(--r-card);
  background:rgba(18,26,42,.62);
  border:1px solid rgba(255,255,255,.07);
  overflow:hidden;
  transition:border-color .24s ease,box-shadow .24s ease;
}
.faq-item.open{border-color:rgba(22,224,168,.4);box-shadow:0 0 0 1px rgba(22,224,168,.16)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;
  padding:20px 22px;text-align:left;
  font-size:16px;font-weight:600;color:var(--text-1);
  min-height:44px;
}
.faq-num{font-size:12px;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;letter-spacing:.06em}
.faq-arrow{
  margin-left:auto;width:20px;height:20px;position:relative;flex-shrink:0;
  transition:transform .24s ease;
}
.faq-arrow::before,.faq-arrow::after{
  content:"";position:absolute;top:9px;left:3px;width:7px;height:2px;border-radius:2px;
  background:var(--text-2);
}
.faq-arrow::before{transform:rotate(45deg)}
.faq-arrow::after{left:9px;transform:rotate(-45deg)}
.faq-item.open .faq-arrow{transform:rotate(180deg)}
.faq-item.open .faq-arrow::before,.faq-item.open .faq-arrow::after{background:var(--primary)}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .28s cubic-bezier(.22,.68,.32,1);
}
.faq-a-inner{
  padding:0 22px 22px 56px;
  font-size:15px;color:var(--text-2);line-height:1.85;
  border-left:3px solid transparent;
}
.faq-item.open .faq-a-inner{border-left:3px solid var(--primary);padding-left:22px}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:20px;
  padding:52px 48px;
  background-image:linear-gradient(115deg,rgba(6,10,18,.94),rgba(10,158,122,.34) 62%,rgba(6,10,18,.92)),url(/assets/images/backpic/back-3.webp);
  background-size:cover;background-position:center;
  border:1px solid rgba(255,255,255,.1);
  box-shadow:var(--sh-2);
}
.cta-inner{display:grid;grid-template-columns:1.3fr .7fr;gap:32px;align-items:center}
.cta-band h2{font-size:clamp(22px,2.5vw,30px);font-weight:800;line-height:1.3;margin-bottom:12px}
.cta-band p{color:var(--text-2);font-size:15.5px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}

/* ---------- footer ---------- */
.site-footer{
  margin-top:20px;
  background:var(--bg-1);
  border-top:1px solid var(--line);
  padding:66px 0 28px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:32px}
.footer-col{padding-right:20px}
.footer-col+.footer-col{border-left:1px solid var(--line);padding-left:26px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-desc{font-size:14.5px;color:var(--text-2);line-height:1.8;max-width:340px}
.footer-title{font-size:14px;font-weight:700;color:var(--text-1);margin-bottom:16px}
.footer-nav{display:grid;gap:11px}
.footer-link{
  font-size:14.5px;color:var(--text-2);
  display:inline-block;
  transition:color .2s ease,transform .2s ease;
}
.footer-link:hover{color:var(--primary-hi);transform:translateX(2px)}
.footer-info{display:grid;gap:11px;font-size:14.5px;color:var(--text-2)}
.footer-info b{color:var(--text-1);font-weight:600}
.footer-bottom{
  margin-top:44px;padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  :root{--sec:64px}
  .nav-links{display:none}
  .menu-btn{display:inline-flex}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .page-hero{padding:132px 0 62px}
  .metrics{grid-template-columns:repeat(2,1fr);margin-top:-26px}
  .split{grid-template-columns:1fr;gap:34px}
  .bar-cards{grid-template-columns:1fr}
  .focus-grid{grid-template-columns:1fr;gap:28px}
  .cta-inner{grid-template-columns:1fr;gap:24px}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-col+.footer-col{border-left:0;padding-left:0}
}
@media (max-width:767px){
  :root{--sec:56px}
  .container{padding:0 20px}
  .nav-wrap{height:64px;gap:12px}
  .logo-text{font-size:15.5px}
  .hero-sub{font-size:16px}
  .metrics{grid-template-columns:1fr;margin-top:-18px}
  .cta-band{padding:34px 24px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .faq-a-inner{padding-left:20px}
  .faq-item.open .faq-a-inner{padding-left:18px}
  .site-footer{padding:50px 0 24px}
  .footer-bottom{flex-direction:column;gap:8px}
  .bar-card{padding:20px;gap:14px}
}
@media (max-width:520px){
  .hero-actions .btn{width:100%}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .metric-value{font-size:26px}
  .logo-text{font-size:14.5px}
  .icon-btn{width:38px;height:38px}
}

/* roulang page: article */
:root{
  --bg-0:#060A12;
  --bg-1:#0B1220;
  --surface:rgba(18,26,42,.72);
  --surface-solid:#121A2A;
  --line:rgba(120,160,200,.16);
  --line-strong:rgba(120,160,200,.32);
  --primary:#16E0A8;
  --primary-hi:#3BF0BE;
  --primary-deep:#0A9E7A;
  --accent:#FF7A45;
  --accent-2:#7C5CFF;
  --text-1:#EAF2FF;
  --text-2:#9FB0C8;
  --text-3:#6B7C94;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:12px;
  --radius-input:10px;
  --shadow-1:0 8px 24px -12px rgba(0,0,0,.6);
  --shadow-2:0 16px 40px -16px rgba(0,0,0,.75);
  --glow:0 0 0 1px rgba(22,224,168,.35),0 10px 30px -10px rgba(22,224,168,.55);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text-1);
  background-color:var(--bg-0);
  background-image:
    radial-gradient(900px 480px at 12% -8%, rgba(22,224,168,.12), transparent 62%),
    radial-gradient(760px 420px at 92% 4%, rgba(124,92,255,.10), transparent 60%),
    linear-gradient(rgba(120,160,200,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,160,200,.045) 1px, transparent 1px);
  background-size:auto,auto,64px 64px,64px 64px;
  background-attachment:fixed;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{list-style:none;padding:0;}
b,strong{font-weight:700;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:2px;
  border-radius:8px;
}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;font-weight:700;}

/* ---------- header ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:50;
  height:72px;
  background:rgba(11,18,32,.28);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
  box-shadow:0 10px 30px -22px rgba(0,0,0,.9);
  transition:height .24s ease,background .24s ease,box-shadow .24s ease;
}
.site-header.scrolled{
  height:64px;
  background:rgba(11,18,32,.95);
  box-shadow:0 14px 36px -20px rgba(0,0,0,.95);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;height:100%;}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:28px;height:28px;border-radius:9px;
  background:linear-gradient(140deg,var(--primary-hi),var(--primary-deep));
  box-shadow:0 0 0 1px rgba(22,224,168,.35),0 8px 18px -8px rgba(22,224,168,.7);
  position:relative;
}
.logo-mark::after{
  content:"";position:absolute;inset:8px 7px;
  border-radius:3px;
  background:rgba(4,35,26,.85);
  clip-path:polygon(0 100%,0 40%,28% 40%,28% 12%,55% 12%,55% 65%,100% 65%,100% 100%);
}
.logo-text{font-size:17px;font-weight:700;color:var(--text-1);letter-spacing:.01em;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  padding:9px 12px;
  font-size:15px;
  color:var(--text-2);
  border-radius:10px;
  transition:color .2s ease,background .2s ease;
  white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:3px;
  width:0;height:2px;border-radius:2px;
  background:var(--primary);
  transform:translateX(-50%);
  box-shadow:0 0 10px rgba(22,224,168,.8);
  transition:width .22s ease;
}
.nav-link:hover{color:var(--primary);}
.nav-link:hover::after{width:52%;}
.nav-link.active{color:var(--text-1);}
.nav-link.active::after{width:52%;}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(18,26,42,.6);
  color:var(--text-2);
  cursor:pointer;
  transition:color .2s ease,border-color .2s ease,background .2s ease,transform .2s ease;
}
.icon-btn:hover{color:var(--primary);border-color:rgba(22,224,168,.5);background:rgba(22,224,168,.1);}
.icon-btn:active{transform:translateY(1px);}
.menu-btn{display:none;}
.nav-mask{display:none;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  font-size:15px;font-weight:600;
  cursor:pointer;
  white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease,filter .2s ease;
}
.btn-primary{
  background:linear-gradient(180deg,var(--primary-hi),var(--primary));
  color:#04231A;
  box-shadow:var(--glow);
}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 0 0 1px rgba(22,224,168,.45),0 14px 34px -10px rgba(22,224,168,.7);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(22,224,168,.3),0 6px 16px -8px rgba(22,224,168,.5);}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--primary);}
.btn-ghost:hover{border-color:var(--primary);background:rgba(22,224,168,.12);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{padding:9px 16px;font-size:14px;}
.btn-lg{padding:14px 28px;font-size:16px;}

/* ---------- page hero ---------- */
.page-hero{
  padding:132px 0 44px;
  background-image:
    linear-gradient(180deg, rgba(6,10,18,.72) 0%, rgba(6,10,18,.94) 78%, var(--bg-0) 100%),
    url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.breadcrumbs{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:14px;color:var(--text-3);margin-bottom:18px;}
.breadcrumbs a{color:var(--text-3);transition:color .2s ease;}
.breadcrumbs a:hover{color:var(--primary);}
.breadcrumbs .sep{color:var(--line-strong);}
.breadcrumbs .current{
  color:var(--text-2);
  max-width:min(560px,62vw);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.article-title{
  font-size:clamp(26px,3.6vw,42px);
  line-height:1.3;
  font-weight:700;
  letter-spacing:.01em;
  color:var(--text-1);
  max-width:960px;
}
.article-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:20px;}
.meta-chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;
  border-radius:999px;
  font-size:13px;
  color:var(--text-2);
  background:rgba(18,26,42,.7);
  border:1px solid var(--line);
}
.meta-chip.is-primary{color:var(--primary);border-color:rgba(22,224,168,.3);background:rgba(22,224,168,.1);}

/* ---------- article layout ---------- */
.article-section{padding:52px 0 72px;}
.article-body{max-width:760px;font-size:17px;line-height:1.9;color:#CBD8EA;overflow-wrap:anywhere;}
.article-body p{margin:0 0 1.1em;}
.article-body h2{
  position:relative;
  margin:38px 0 14px;
  padding-left:14px;
  font-size:24px;
  line-height:1.4;
  font-weight:700;
  color:var(--text-1);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--primary-hi),var(--primary-deep));
  box-shadow:0 0 12px rgba(22,224,168,.6);
}
.article-body h3{margin:26px 0 10px;font-size:19px;line-height:1.5;font-weight:700;color:var(--text-1);}
.article-body h4{margin:20px 0 8px;font-size:17px;font-weight:700;color:var(--text-1);}
.article-body ul,.article-body ol{margin:0 0 1.1em;padding-left:22px;}
.article-body ul li{position:relative;padding-left:16px;margin:8px 0;}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:2px;background:var(--primary);
}
.article-body ol{list-style:decimal;color:#CBD8EA;}
.article-body ol li{margin:8px 0;padding-left:4px;}
.article-body ol li::marker{color:var(--primary);font-weight:700;}
.article-body blockquote{
  margin:22px 0;
  padding:18px 20px;
  border-left:3px solid var(--primary);
  border-radius:0 var(--radius-card) var(--radius-card) 0;
  background:var(--surface);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  color:var(--text-2);
}
.article-body img{border-radius:var(--radius-img);margin:20px 0;border:1px solid var(--line);}
.article-body figure{margin:22px 0;}
.article-body figcaption{margin-top:8px;font-size:13px;color:var(--text-3);text-align:center;}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;transition:color .2s ease;}
.article-body a:hover{color:var(--primary-hi);}
.article-body table{width:100%;border-collapse:collapse;margin:18px 0;font-size:15px;background:var(--surface);border-radius:var(--radius-card);overflow:hidden;}
.article-body th,.article-body td{padding:11px 14px;border:1px solid var(--line);text-align:left;}
.article-body th{background:rgba(22,224,168,.08);color:var(--text-1);font-weight:600;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:28px 0;}

.empty-state{
  max-width:760px;
  min-height:240px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  padding:48px 24px;
  text-align:center;
  border:1px dashed var(--line-strong);
  border-radius:var(--radius-card);
  background:var(--surface);
}
.empty-icon{position:relative;width:56px;height:56px;border-radius:16px;border:1px solid rgba(22,224,168,.4);background:rgba(22,224,168,.08);}
.empty-icon::before{
  content:"";position:absolute;left:15px;right:15px;top:20px;height:2px;border-radius:2px;
  background:var(--primary);box-shadow:0 8px 0 rgba(22,224,168,.45);
}
.empty-title{font-size:20px;font-weight:700;color:var(--text-1);}
.empty-text{font-size:15px;color:var(--text-2);max-width:440px;}

/* ---------- tags ---------- */
.tag-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:34px 0 0;max-width:760px;}
.tag{
  display:inline-flex;align-items:center;
  padding:6px 13px;
  border-radius:999px;
  font-size:13px;
  color:var(--text-2);
  background:rgba(18,26,42,.7);
  border:1px solid var(--line);
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.tag:hover{color:var(--primary);border-color:rgba(22,224,168,.45);background:rgba(22,224,168,.1);}

/* ---------- sidebar ---------- */
.article-aside{display:none;}
.side-inner{display:flex;flex-direction:column;gap:16px;}
.side-card{
  padding:20px;
  border-radius:var(--radius-card);
  background:var(--surface);
  border:1px solid rgba(255,255,255,.08);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-1);
}
.side-title{
  position:relative;
  padding-left:11px;
  margin-bottom:14px;
  font-size:15px;font-weight:700;color:var(--text-1);
}
.side-title::before{
  content:"";position:absolute;left:0;top:5px;bottom:5px;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--primary-hi),var(--primary-deep));
}
.tip-list{display:flex;flex-direction:column;gap:11px;}
.tip-item{display:flex;gap:9px;font-size:14px;line-height:1.75;color:var(--text-2);}
.tip-dot{flex:0 0 auto;width:6px;height:6px;border-radius:2px;background:var(--primary);margin-top:9px;}
.side-links{display:flex;flex-direction:column;gap:4px;}
.side-link{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:10px 12px;
  border-radius:10px;
  font-size:14px;
  color:var(--text-2);
  border:1px solid transparent;
  transition:color .2s ease,background .2s ease,border-color .2s ease,transform .2s ease;
}
.side-link:hover{color:var(--primary);background:rgba(22,224,168,.08);border-color:rgba(22,224,168,.28);transform:translateX(2px);}
.side-link span{color:var(--text-3);font-size:12px;}

/* ---------- related ---------- */
.related{margin-top:56px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;flex-wrap:wrap;margin-bottom:22px;}
.section-head h2{font-size:26px;line-height:1.35;font-weight:700;color:var(--text-1);}
.section-head p{font-size:14px;color:var(--text-2);margin-top:8px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 12px;border-radius:999px;
  font-size:12px;letter-spacing:.02em;
  color:var(--primary);
  background:rgba(22,224,168,.1);
  border:1px solid rgba(22,224,168,.26);
  margin-bottom:12px;
}
.rec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.card{
  display:flex;flex-direction:column;
  border-radius:var(--radius-card);
  background:var(--surface);
  border:1px solid rgba(255,255,255,.08);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-1);
  overflow:hidden;
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(22,224,168,.4);}
.card-cover{position:relative;}
.card-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.card-badge{
  position:absolute;left:12px;top:12px;
  padding:4px 10px;border-radius:999px;
  font-size:12px;
  color:var(--text-1);
  background:rgba(6,10,18,.68);
  border:1px solid rgba(255,255,255,.14);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
}
.card-body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-title{font-size:17px;line-height:1.5;font-weight:600;color:var(--text-1);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-desc{font-size:14px;line-height:1.7;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:auto;font-size:13px;color:var(--text-3);}
.card-link{color:var(--primary);font-weight:600;transition:color .2s ease,transform .2s ease;display:inline-flex;align-items:center;gap:6px;}
.card-link:hover{color:var(--primary-hi);}
.card-link::after{content:"→";transition:transform .2s ease;}
.card-link:hover::after{transform:translateX(3px);}

/* ---------- cta ---------- */
.cta-wrap{padding:0 0 72px;}
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  padding:34px 36px;
  border-radius:20px;
  background:linear-gradient(120deg, rgba(22,224,168,.14), rgba(124,92,255,.12)), var(--surface-solid);
  border:1px solid rgba(22,224,168,.24);
  box-shadow:var(--shadow-1);
}
.cta-band h2{font-size:24px;line-height:1.35;font-weight:700;color:var(--text-1);}
.cta-band p{font-size:15px;color:var(--text-2);margin-top:10px;max-width:640px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- footer ---------- */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg, rgba(11,18,32,.6), rgba(6,10,18,.96));
  padding:56px 0 24px;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;}
.footer-col + .footer-col{border-left:1px solid var(--line);padding-left:28px;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-desc{font-size:14px;line-height:1.85;color:var(--text-2);max-width:320px;}
.footer-title{font-size:14px;font-weight:700;color:var(--text-1);margin-bottom:14px;}
.footer-nav{display:flex;flex-direction:column;gap:10px;}
.footer-link{font-size:14px;color:var(--text-2);transition:color .2s ease,transform .2s ease;display:inline-block;}
.footer-link:hover{color:var(--primary);transform:translateX(-2px);}
.footer-info{display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--text-2);}
.footer-info b{color:var(--text-1);font-weight:600;}
.footer-bottom{
  margin-top:36px;padding-top:20px;
  border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}

/* ---------- responsive ---------- */
@media (min-width:1280px){
  .article-aside{display:block;}
  .side-inner{position:sticky;top:96px;}
}
@media (max-width:1023px){
  .menu-btn{display:inline-flex;}
  .nav-links{
    position:fixed;top:0;right:0;z-index:60;
    width:min(320px,86vw);height:100vh;
    flex-direction:column;align-items:stretch;gap:6px;
    padding:92px 20px 32px;
    background:rgba(11,18,32,.97);
    -webkit-backdrop-filter:blur(18px);
    backdrop-filter:blur(18px);
    border-left:1px solid var(--line);
    transform:translateX(102%);
    transition:transform .28s ease;
    overflow-y:auto;
  }
  .nav-links.open{transform:translateX(0);}
  .nav-link{width:100%;padding:14px 12px;font-size:16px;border-radius:12px;}
  .nav-link::after{display:none;}
  .nav-link:hover,.nav-link.active{color:var(--primary);background:rgba(22,224,168,.1);}
  .nav-mask{
    display:block;position:fixed;inset:0;z-index:55;
    background:rgba(3,6,12,.62);
    opacity:0;pointer-events:none;
    transition:opacity .28s ease;
  }
  .nav-mask.open{opacity:1;pointer-events:auto;}
  body.menu-open{overflow:hidden;}
  .page-hero{padding:112px 0 36px;}
  .article-section{padding:40px 0 56px;}
  .rec-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-col + .footer-col{border-left:0;padding-left:0;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .section-head h2{font-size:22px;}
  .article-body{font-size:16px;}
  .article-body h2{font-size:21px;}
  .rec-grid{grid-template-columns:1fr;}
  .cta-band{padding:26px 22px;flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
}
@media (max-width:639px){
  .nav-actions .btn-sm{display:none;}
  .page-hero{padding:100px 0 32px;}
  .breadcrumbs .current{max-width:70vw;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-desc{max-width:none;}
}

/* roulang page: category3 */
:root{
  --bg-0:#060A12;
  --bg-1:#0B1220;
  --surface:rgba(18,26,42,.72);
  --surface-solid:#121A2A;
  --line:rgba(120,160,200,.16);
  --line-strong:rgba(120,160,200,.3);
  --primary:#16E0A8;
  --primary-hi:#3BF0BE;
  --primary-deep:#0A9E7A;
  --accent:#FF7A45;
  --accent-2:#7C5CFF;
  --text-1:#EAF2FF;
  --text-2:#9FB0C8;
  --text-3:#6B7C94;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:12px;
  --shadow-1:0 8px 24px -12px rgba(0,0,0,.6);
  --shadow-2:0 16px 40px -16px rgba(0,0,0,.75);
  --glow:0 0 0 1px rgba(22,224,168,.35),0 10px 30px -10px rgba(22,224,168,.55);
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
html body.site-body{
  margin:0;
  padding:0;
  background:var(--bg-0);
  color:var(--text-1);
  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;}
h1,h2,h3,h4,p,ul,ol{margin:0;padding:0;}
ul,ol{list-style:none;}
::selection{background:rgba(22,224,168,.28);color:#fff;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:8px;}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:50;
  background:rgba(11,18,32,.28);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
  box-shadow:0 10px 30px -22px rgba(0,0,0,.9);
  transition:background .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.site-header.is-scrolled{
  background:rgba(11,18,32,.95);
  box-shadow:0 14px 34px -20px rgba(0,0,0,.95);
  border-bottom-color:var(--line-strong);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.site-header.is-scrolled .nav-wrap{height:66px;}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--text-1);letter-spacing:.01em;white-space:nowrap;}
.logo-mark{
  width:28px;height:28px;border-radius:9px;position:relative;flex:0 0 auto;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  box-shadow:0 0 0 1px rgba(22,224,168,.35),0 8px 20px -10px rgba(22,224,168,.65);
}
.logo-mark::after{
  content:"";position:absolute;inset:8px;border-radius:3px;
  background:rgba(4,20,15,.85);
}
.logo-text{line-height:1;}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-link{
  position:relative;padding:10px 14px;border-radius:10px;
  font-size:15px;color:var(--text-2);transition:color .2s ease,background .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:4px;height:2px;width:0;border-radius:2px;
  background:var(--primary);box-shadow:0 0 10px rgba(22,224,168,.8);
  transform:translateX(-50%);transition:width .24s ease;
}
.nav-link:hover{color:var(--text-1);background:rgba(255,255,255,.045);}
.nav-link:hover::after{width:46%;}
.nav-link.active{color:var(--primary);background:rgba(22,224,168,.1);}
.nav-link.active::after{width:46%;}
.nav-actions{display:flex;align-items:center;gap:10px;}
.icon-btn{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;border:1px solid var(--line);background:rgba(255,255,255,.03);
  color:var(--text-2);cursor:pointer;transition:all .2s ease;
}
.icon-btn:hover{color:var(--primary);border-color:rgba(22,224,168,.5);background:rgba(22,224,168,.08);}
.icon-btn:active{transform:translateY(1px);}
.menu-btn{display:none;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,filter .2s ease,background .2s ease,border-color .2s ease,box-shadow .2s ease,color .2s ease;
}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-primary{background:var(--primary);color:#04140F;box-shadow:var(--glow);}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.06);}
.btn-primary:active{transform:translateY(1px);filter:brightness(.98);}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--primary);}
.btn-ghost:hover{border-color:var(--primary);background:rgba(22,224,168,.12);color:var(--primary-hi);}
.btn-ghost:active{transform:translateY(1px);}
.nav-mask{
  position:fixed;inset:0;background:rgba(4,8,14,.6);z-index:55;opacity:0;pointer-events:none;
  transition:opacity .26s ease;
}
.nav-mask.is-open{opacity:1;pointer-events:auto;}

/* ============ 通用板块 ============ */
.section{padding:88px 0;}
.section-alt{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.08em;color:var(--primary);
  padding:6px 12px;border-radius:999px;border:1px solid rgba(22,224,168,.28);
  background:rgba(22,224,168,.08);margin-bottom:16px;
}
.section-title{font-size:30px;line-height:1.3;font-weight:700;color:var(--text-1);letter-spacing:.01em;}
.section-desc{margin-top:14px;font-size:15px;line-height:1.85;color:var(--text-2);}
.badge{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;line-height:1;
  padding:7px 14px;border-radius:999px;color:var(--primary-hi);
  border:1px solid rgba(22,224,168,.3);background:rgba(22,224,168,.1);
}

/* ============ 首屏 ============ */
.page-hero{
  position:relative;padding:132px 0 76px;overflow:hidden;
  background-image:url(/assets/images/backpic/back-2.png);
  background-size:cover;background-position:center;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,18,.86) 0%,rgba(6,10,18,.92) 55%,var(--bg-0) 100%);
}
.page-hero::after{
  content:"";position:absolute;inset:0;opacity:.06;pointer-events:none;
  background-image:repeating-linear-gradient(0deg,rgba(255,255,255,.5) 0 1px,transparent 1px 56px),
                   repeating-linear-gradient(90deg,rgba(255,255,255,.5) 0 1px,transparent 1px 56px);
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:22px;}
.breadcrumb a{color:var(--text-2);transition:color .2s ease;}
.breadcrumb a:hover{color:var(--primary);}
.crumb-sep{color:var(--text-3);}
.crumb-current{color:var(--text-2);}
.hero-title{
  margin-top:18px;font-size:clamp(30px,4.4vw,52px);line-height:1.28;font-weight:700;letter-spacing:.01em;
  max-width:900px;
}
.hero-sub{margin-top:16px;font-size:17px;line-height:1.8;color:var(--text-2);max-width:640px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.stat-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:52px;}
.stat-card{
  position:relative;padding:22px 22px 26px;border-radius:var(--radius-card);
  background:var(--surface);border:1px solid rgba(255,255,255,.08);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-1);transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.stat-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(22,224,168,.4);}
.stat-value{font-size:30px;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;line-height:1.2;}
.stat-name{margin-top:6px;font-size:14px;color:var(--text-1);font-weight:600;}
.stat-note{margin-top:6px;font-size:12px;color:var(--text-3);line-height:1.7;}
.stat-bar{
  display:block;position:absolute;left:22px;right:auto;bottom:12px;height:3px;width:var(--w,60%);
  border-radius:3px;background:linear-gradient(90deg,var(--primary-deep),var(--primary));
  transition:width .3s ease,background .3s ease;
}
.stat-card:hover .stat-bar{background:linear-gradient(90deg,var(--primary),var(--primary-hi));}

/* ============ 规则卡片墙 ============ */
.rule-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.rule-card{
  display:flex;flex-direction:column;gap:14px;
  padding:26px;border-radius:var(--radius-card);
  background:var(--surface);border:1px solid rgba(255,255,255,.08);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.rule-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(22,224,168,.4);}
.rule-card-wide{grid-column:span 2;flex-direction:row;gap:26px;align-items:stretch;}
.rule-card-wide .rule-figure{flex:0 0 46%;border-radius:var(--radius-img);overflow:hidden;position:relative;min-height:220px;border:1px solid var(--line);}
.rule-card-wide .rule-figure img{width:100%;height:100%;object-fit:cover;}
.rule-card-wide .rule-body{flex:1 1 auto;display:flex;flex-direction:column;gap:12px;}
.card-icon{
  width:42px;height:42px;border-radius:12px;position:relative;flex:0 0 auto;
  border:1px solid rgba(22,224,168,.45);background:rgba(22,224,168,.12);
}
.card-icon::before{content:"";position:absolute;inset:11px;border-radius:4px;background:var(--primary);opacity:.85;}
.card-icon.alt{border-color:rgba(255,122,69,.45);background:rgba(255,122,69,.12);}
.card-icon.alt::before{background:var(--accent);}
.card-icon.alt2{border-color:rgba(124,92,255,.45);background:rgba(124,92,255,.14);}
.card-icon.alt2::before{background:var(--accent-2);}
.rule-card h3{font-size:19px;font-weight:700;color:var(--text-1);line-height:1.45;}
.rule-card p{font-size:14px;color:var(--text-2);line-height:1.8;}
.rule-list{display:flex;flex-direction:column;gap:10px;margin-top:2px;}
.rule-list li{
  position:relative;padding-left:18px;font-size:14px;line-height:1.75;color:var(--text-2);
}
.rule-list li::before{
  content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:2px;
  background:var(--primary);opacity:.85;
}
.rule-tag{
  align-self:flex-start;font-size:12px;line-height:1;padding:6px 10px;border-radius:999px;
  color:var(--text-2);border:1px solid var(--line);background:rgba(255,255,255,.03);
}

/* ============ 适用条件对照 ============ */
.scope-list{display:flex;flex-direction:column;border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);background:rgba(11,18,32,.6);}
.scope-row{
  display:grid;grid-template-columns:180px 1fr 1.6fr;gap:20px;align-items:center;
  padding:20px 24px;border-bottom:1px solid var(--line);transition:background .2s ease;
}
.scope-row:last-child{border-bottom:none;}
.scope-row:hover{background:rgba(255,255,255,.03);}
.scope-label{font-size:12px;letter-spacing:.04em;color:var(--primary);border:1px solid rgba(22,224,168,.28);background:rgba(22,224,168,.08);border-radius:999px;padding:6px 12px;justify-self:start;}
.scope-name{font-size:15px;font-weight:600;color:var(--text-1);}
.scope-text{font-size:14px;color:var(--text-2);line-height:1.75;}

/* ============ 图文区块 ============ */
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:44px;align-items:center;}
.split-figure{border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-1);position:relative;}
.split-figure img{width:100%;height:100%;object-fit:cover;}
.split-figure::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(6,10,18,.55));}
.step-list{display:flex;flex-direction:column;gap:18px;margin-top:26px;}
.step-item{display:flex;gap:16px;padding:18px 20px;border-radius:var(--radius-card);background:var(--surface);border:1px solid rgba(255,255,255,.08);transition:border-color .2s ease,transform .2s ease;}
.step-item:hover{border-color:rgba(22,224,168,.4);transform:translateX(3px);}
.step-num{
  flex:0 0 auto;width:32px;height:32px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;color:#04140F;background:var(--primary);font-variant-numeric:tabular-nums;
}
.step-item h3{font-size:16px;font-weight:600;color:var(--text-1);}
.step-item p{margin-top:5px;font-size:14px;color:var(--text-2);line-height:1.75;}

/* ============ 误读澄清 ============ */
.myth-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.myth-card{
  padding:24px;border-radius:var(--radius-card);border:1px solid rgba(255,255,255,.08);
  background:linear-gradient(180deg,rgba(18,26,42,.85),rgba(11,18,32,.85));
  transition:border-color .2s ease,transform .2s ease;
}
.myth-card:hover{border-color:rgba(255,122,69,.4);transform:translateY(-2px);}
.myth-q{display:flex;gap:10px;align-items:flex-start;font-size:16px;font-weight:600;color:var(--text-1);line-height:1.6;}
.myth-q span{
  flex:0 0 auto;font-size:12px;line-height:1;padding:6px 9px;border-radius:8px;margin-top:2px;
  color:var(--accent);border:1px solid rgba(255,122,69,.35);background:rgba(255,122,69,.1);
}
.myth-a{margin-top:12px;font-size:14px;line-height:1.8;color:var(--text-2);}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:20px;padding:48px 44px;
  border:1px solid rgba(22,224,168,.25);
  background:linear-gradient(120deg,rgba(18,26,42,.95),rgba(10,30,32,.9));
  box-shadow:var(--shadow-2);
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(22,224,168,.22),transparent 70%);
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.4fr 1fr;gap:32px;align-items:center;}
.cta-band h2{font-size:26px;font-weight:700;line-height:1.4;}
.cta-band p{margin-top:12px;font-size:15px;color:var(--text-2);line-height:1.8;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end;}
.channel-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.channel-link{
  font-size:13px;padding:8px 14px;border-radius:999px;border:1px solid var(--line);
  color:var(--text-2);background:rgba(255,255,255,.03);transition:all .2s ease;
}
.channel-link:hover{color:var(--primary);border-color:rgba(22,224,168,.45);background:rgba(22,224,168,.08);}

/* ============ 页脚 ============ */
.site-footer{margin-top:40px;border-top:1px solid var(--line);background:var(--bg-1);padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;}
.footer-col{min-width:0;}
.footer-col + .footer-col{border-left:1px solid var(--line);padding-left:32px;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:16px;font-weight:700;color:var(--text-1);}
.footer-desc{margin-top:14px;font-size:14px;line-height:1.85;color:var(--text-2);max-width:340px;}
.footer-title{font-size:14px;font-weight:700;color:var(--text-1);margin-bottom:16px;}
.footer-nav{display:flex;flex-direction:column;gap:12px;}
.footer-link{font-size:14px;color:var(--text-2);transition:color .2s ease,transform .2s ease;display:inline-block;}
.footer-link:hover{color:var(--primary);transform:translateX(2px);}
.footer-info{display:flex;flex-direction:column;gap:12px;font-size:14px;color:var(--text-2);}
.footer-info b{color:var(--text-1);font-weight:600;}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .nav-links{
    position:fixed;top:0;right:0;height:100vh;width:min(320px,84vw);
    flex-direction:column;align-items:stretch;gap:6px;
    padding:88px 20px 32px;margin:0;
    background:rgba(11,18,32,.98);
    -webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);
    border-left:1px solid var(--line);
    transform:translateX(100%);transition:transform .3s ease;z-index:60;overflow-y:auto;
  }
  .nav-links.is-open{transform:translateX(0);}
  .nav-link{padding:14px 16px;font-size:16px;min-height:44px;display:flex;align-items:center;}
  .nav-link::after{display:none;}
  .menu-btn{display:inline-flex;}
  .rule-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .rule-card-wide{grid-column:span 2;flex-direction:column;}
  .rule-card-wide .rule-figure{flex:none;min-height:200px;}
  .split{grid-template-columns:1fr;gap:32px;}
  .cta-inner{grid-template-columns:1fr;}
  .cta-actions{justify-content:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-col + .footer-col{border-left:none;padding-left:0;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .section-alt{padding:44px 0;}
  .page-hero{padding:110px 0 56px;}
  .hero-sub{font-size:16px;}
  .stat-row{grid-template-columns:1fr;gap:16px;}
  .rule-grid{grid-template-columns:1fr;}
  .rule-card-wide{grid-column:span 1;}
  .myth-grid{grid-template-columns:1fr;}
  .scope-row{grid-template-columns:1fr;gap:10px;padding:18px 18px;}
  .cta-band{padding:32px 22px;}
  .section-title{font-size:24px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:520px){
  .logo-text{font-size:15px;}
  .nav-actions .btn-primary{display:none;}
  .hero-actions .btn{width:100%;}
  .rule-card{padding:20px;}
}

/* roulang page: category2 */
:root{
  --bg-0:#060A12;
  --bg-1:#0B1220;
  --surface:rgba(18,26,42,.72);
  --surface-solid:#121A2A;
  --line:rgba(120,160,200,.16);
  --line-soft:rgba(255,255,255,.08);
  --primary:#16E0A8;
  --primary-hi:#3BF0BE;
  --primary-deep:#0A9E7A;
  --accent:#FF7A45;
  --accent-2:#7C5CFF;
  --text-1:#EAF2FF;
  --text-2:#9FB0C8;
  --text-3:#6B7C94;
  --r-card:14px;
  --r-img:12px;
  --r-btn:12px;
  --r-input:10px;
  --sh-1:0 8px 24px -12px rgba(0,0,0,.6);
  --sh-2:0 16px 40px -16px rgba(0,0,0,.75);
  --sh-glow:0 0 0 1px rgba(22,224,168,.35),0 10px 30px -10px rgba(22,224,168,.55);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  background-color:var(--bg-0);
  background-image:radial-gradient(680px 320px at 10% -6%,rgba(22,224,168,.10),transparent 72%),radial-gradient(760px 380px at 92% 4%,rgba(124,92,255,.09),transparent 72%);
  background-repeat:no-repeat;
  color:var(--text-1);
  font-size:16px;
  line-height:1.8;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.no-scroll{overflow:hidden}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:rgba(11,18,32,.28);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.06);
  box-shadow:0 10px 30px -22px rgba(0,0,0,.9);
  transition:background .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.site-header.is-stuck{background:rgba(11,18,32,.95);border-bottom-color:var(--line);box-shadow:0 14px 34px -20px rgba(0,0,0,.95)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:22px;height:72px;transition:height .24s ease}
.site-header.is-stuck .nav-wrap{height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:none}
.logo-mark{width:26px;height:26px;border-radius:8px;background:linear-gradient(140deg,var(--primary),var(--primary-deep) 55%,var(--accent-2));box-shadow:0 0 0 1px rgba(22,224,168,.4),0 6px 18px -8px rgba(22,224,168,.7);position:relative;flex:none}
.logo-mark::after{content:"";position:absolute;inset:8px;border-radius:3px;background:rgba(6,10,18,.72)}
.logo-text{font-size:17px;font-weight:700;color:var(--text-1);white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-link{position:relative;font-size:15px;color:var(--text-2);padding:6px 0;transition:color .2s ease}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;background:var(--primary);transform:scaleX(0);transform-origin:center;transition:transform .22s ease;box-shadow:0 0 10px rgba(22,224,168,.8)}
.nav-link:hover{color:var(--text-1)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--text-1);font-weight:600}
.nav-link.active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:10px;flex:none}
.icon-btn{width:40px;height:40px;display:grid;place-items:center;border-radius:10px;background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--text-2);transition:color .2s ease,border-color .2s ease,background .2s ease}
.icon-btn:hover{color:var(--primary);border-color:rgba(22,224,168,.45);background:rgba(22,224,168,.1)}
.menu-btn{display:none}
.nav-overlay{position:fixed;inset:0;background:rgba(4,7,13,.62);opacity:0;visibility:hidden;transition:opacity .3s ease;z-index:70}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:12px 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;transition:transform .2s ease,filter .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease}
.btn-primary{background:linear-gradient(180deg,var(--primary-hi),var(--primary));color:#04140F;box-shadow:var(--sh-glow)}
.btn-primary:hover{transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 0 0 1px rgba(22,224,168,.45),0 14px 34px -10px rgba(22,224,168,.65)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(22,224,168,.25),0 6px 16px -8px rgba(22,224,168,.45)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--primary)}
.btn-ghost:hover{border-color:var(--primary);background:rgba(22,224,168,.12)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{padding:9px 16px;font-size:14px;min-height:40px}

/* ---------- 首屏 ---------- */
.page-hero{position:relative;overflow:hidden;padding:154px 0 80px;background-image:linear-gradient(180deg,rgba(6,10,18,.72),rgba(6,10,18,.94)),url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center}
.page-hero::after{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(0deg,rgba(255,255,255,.05) 0 1px,transparent 1px 56px),repeating-linear-gradient(90deg,rgba(255,255,255,.05) 0 1px,transparent 1px 56px);opacity:.32;pointer-events:none}
.page-hero > .container{position:relative;z-index:1}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:22px;flex-wrap:wrap}
.breadcrumb a{color:var(--text-2);transition:color .2s ease}
.breadcrumb a:hover{color:var(--primary)}
.crumb-sep{color:var(--text-3)}
.crumb-current{color:var(--text-1)}
.eyebrow{display:inline-block;font-size:12px;font-weight:700;color:var(--primary);background:rgba(22,224,168,.1);border:1px solid rgba(22,224,168,.28);border-radius:999px;padding:4px 12px}
.hero-title{font-size:clamp(30px,4.4vw,52px);font-weight:800;line-height:1.22;margin:16px 0 0;max-width:900px}
.hero-sub{margin:16px 0 0;font-size:clamp(15px,1.5vw,18px);color:var(--text-2);line-height:1.8;max-width:600px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:28px 0 36px}
.mini-stat{background:var(--surface);border:1px solid var(--line-soft);border-radius:var(--r-card);padding:16px 18px;-webkit-backdrop-filter:blur(14px) saturate(140%);backdrop-filter:blur(14px) saturate(140%);box-shadow:var(--sh-1);display:flex;flex-direction:column;gap:2px;transition:transform .22s ease,border-color .22s ease}
.mini-stat:hover{transform:translateY(-2px);border-color:rgba(22,224,168,.35)}
.mini-num{font-size:19px;font-weight:750;color:var(--primary);font-variant-numeric:tabular-nums}
.mini-label{font-size:13px;color:var(--text-3)}

/* ---------- 板块 ---------- */
.section{padding:88px 0}
.section--alt{background:linear-gradient(180deg,rgba(11,18,32,.88),rgba(11,18,32,.3));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:740px;margin-bottom:40px}
.sec-title{font-size:clamp(22px,2.6vw,32px);font-weight:750;line-height:1.3;margin:14px 0 12px}
.sec-desc{margin:0;color:var(--text-2);font-size:16px;line-height:1.85}

/* ---------- 卡片 ---------- */
.glass{background:var(--surface);-webkit-backdrop-filter:blur(14px) saturate(140%);backdrop-filter:blur(14px) saturate(140%);border:1px solid var(--line-soft);border-radius:var(--r-card);box-shadow:var(--sh-1)}
.dim-card{padding:24px;display:flex;flex-direction:column;gap:12px;transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease}
.dim-card:hover{transform:translateY(-2px);border-color:rgba(22,224,168,.4);box-shadow:var(--sh-2)}
.dim-icon{width:44px;height:44px;border-radius:12px;border:1px solid rgba(22,224,168,.35);background:rgba(22,224,168,.08);display:grid;place-items:center;color:var(--primary)}
.dim-card h3{font-size:18px;font-weight:700;line-height:1.4;margin:0}
.dim-card p{margin:0;color:var(--text-2);font-size:14.5px;line-height:1.75}
.tag{display:inline-block;font-size:12px;padding:3px 10px;border-radius:999px;color:var(--primary);background:rgba(22,224,168,.1);border:1px solid rgba(22,224,168,.25)}

/* ---------- 图文块 ---------- */
.media-figure{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-2)}
.media-figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;border-radius:0}
.media-caption{position:absolute;left:14px;bottom:14px;font-size:12px;color:var(--text-2);background:rgba(6,10,18,.7);border:1px solid var(--line);padding:5px 11px;border-radius:999px}
.bullet-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:14px}
.bullet-list li{position:relative;padding-left:22px;color:var(--text-2);font-size:15px;line-height:1.8}
.bullet-list li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:2px;background:var(--primary);box-shadow:0 0 10px rgba(22,224,168,.7)}
.bullet-list strong{color:var(--text-1);font-weight:600}

/* ---------- 时间轴 ---------- */
.timeline{position:relative}
.timeline::before{content:"";position:absolute;left:23px;top:14px;bottom:14px;width:1px;background:linear-gradient(180deg,rgba(22,224,168,.6),rgba(124,92,255,.28),transparent)}
.tl-item{position:relative;padding-left:76px;margin-bottom:26px}
.tl-item:last-child{margin-bottom:0}
.tl-dot{position:absolute;left:0;top:4px;width:48px;height:48px;border-radius:14px;display:grid;place-items:center;background:var(--surface-solid);border:1px solid rgba(22,224,168,.35);color:var(--primary);font-size:14px;font-weight:750;font-variant-numeric:tabular-nums;box-shadow:0 0 0 6px rgba(6,10,18,.9)}
.tl-card{padding:22px 24px;transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease}
.tl-card:hover{transform:translateY(-2px);border-color:rgba(22,224,168,.38);box-shadow:var(--sh-2)}
.tl-card h3{font-size:18px;font-weight:700;margin:0 0 8px;line-height:1.4}
.tl-card p{margin:0;color:var(--text-2);font-size:15px;line-height:1.8}

/* ---------- 对比 ---------- */
.compare-col{padding:24px;border-radius:var(--r-card);border:1px solid var(--line-soft);background:var(--surface);-webkit-backdrop-filter:blur(14px) saturate(140%);backdrop-filter:blur(14px) saturate(140%);box-shadow:var(--sh-1)}
.compare-col.is-platform{border-color:rgba(22,224,168,.38);box-shadow:0 0 0 1px rgba(22,224,168,.16),var(--sh-2)}
.compare-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px;font-size:15px;font-weight:700}
.compare-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:13px}
.compare-list li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;line-height:1.75;color:var(--text-2)}
.dot-mark{flex:none;width:18px;height:18px;border-radius:6px;border:1px solid var(--line);display:grid;place-items:center;font-size:11px;line-height:1;margin-top:4px;color:var(--text-3)}
.is-platform .dot-mark{color:var(--primary);border-color:rgba(22,224,168,.4);background:rgba(22,224,168,.1)}

/* ---------- FAQ ---------- */
.faq-item{background:var(--surface);border:1px solid var(--line-soft);border-radius:var(--r-card);overflow:hidden;margin-bottom:12px;-webkit-backdrop-filter:blur(14px) saturate(140%);backdrop-filter:blur(14px) saturate(140%);transition:border-color .22s ease,box-shadow .22s ease}
.faq-item:hover{border-color:rgba(22,224,168,.28)}
.faq-item.open{border-color:rgba(22,224,168,.45);box-shadow:0 0 0 1px rgba(22,224,168,.14),var(--sh-1)}
.faq-q{width:100%;display:flex;align-items:center;gap:16px;padding:18px 20px;background:none;border:0;text-align:left;color:var(--text-1);font-size:16px;font-weight:600;line-height:1.6}
.faq-idx{flex:none;font-size:12px;font-weight:750;color:var(--primary);font-variant-numeric:tabular-nums}
.faq-arrow{flex:none;margin-left:auto;color:var(--text-3);transition:transform .22s ease,color .22s ease}
.faq-item.open .faq-arrow{transform:rotate(180deg);color:var(--primary)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease}
.faq-a-inner{padding:0 20px 20px 52px;color:var(--text-2);font-size:15px;line-height:1.85;border-left:3px solid transparent}
.faq-item.open .faq-a-inner{border-left-color:var(--primary);margin-left:20px;padding-left:16px}

/* ---------- CTA ---------- */
.cta-band{position:relative;overflow:hidden;border-radius:18px;padding:44px;border:1px solid rgba(22,224,168,.28);background:linear-gradient(135deg,rgba(22,224,168,.14),rgba(124,92,255,.12) 55%,rgba(18,26,42,.72));box-shadow:var(--sh-2)}
.cta-band::after{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(90deg,rgba(255,255,255,.05) 0 1px,transparent 1px 46px);opacity:.5;pointer-events:none}
.cta-inner{position:relative;z-index:1;display:flex;gap:28px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.cta-title{font-size:clamp(20px,2.4vw,28px);font-weight:750;line-height:1.35;margin:0 0 10px}
.cta-desc{margin:0;color:var(--text-2);font-size:15px;line-height:1.8;max-width:520px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.link-row{margin-top:20px;display:flex;gap:18px;flex-wrap:wrap;font-size:14px;color:var(--text-3)}
.link-row a{color:var(--primary);border-bottom:1px solid rgba(22,224,168,.35);padding-bottom:1px;transition:color .2s ease,border-color .2s ease}
.link-row a:hover{color:var(--primary-hi);border-color:var(--primary-hi)}

/* ---------- 页脚 ---------- */
.site-footer{background:linear-gradient(180deg,rgba(11,18,32,.6),rgba(6,10,18,1));border-top:1px solid var(--line);padding:64px 0 28px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .logo-mark{width:24px;height:24px}
.footer-brand .logo-text{font-size:16px}
.footer-desc{margin:0;color:var(--text-3);font-size:14px;line-height:1.9;max-width:360px}
.footer-title{font-size:15px;font-weight:700;color:var(--text-1);margin-bottom:14px}
.footer-nav{display:flex;flex-direction:column;gap:10px}
.footer-link{color:var(--text-2);font-size:14px;display:inline-block;transition:color .2s ease,transform .2s ease}
.footer-link:hover{color:var(--primary);transform:translateX(2px)}
.footer-info{display:flex;flex-direction:column;gap:10px;color:var(--text-3);font-size:14px}
.footer-info b{color:var(--text-1);font-weight:600}
.footer-bottom{margin-top:40px;padding-top:20px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;color:var(--text-3);font-size:13px}

/* ---------- 响应式 ---------- */
@media (min-width:1024px){
  .footer-col + .footer-col{padding-left:24px;border-left:1px solid var(--line)}
}
@media (max-width:1023px){
  .menu-btn{display:grid}
  .nav-links{
    position:fixed;top:0;right:0;height:100vh;width:min(320px,86vw);
    flex-direction:column;align-items:stretch;gap:2px;
    padding:88px 22px 32px;overflow-y:auto;
    background:rgba(11,18,32,.97);
    -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
    border-left:1px solid var(--line);
    transform:translateX(105%);transition:transform .3s ease;z-index:80;
  }
  .nav-links.open{transform:translateX(0)}
  .nav-link{display:flex;align-items:center;min-height:44px;padding:14px 4px;font-size:16px;border-bottom:1px solid rgba(120,160,200,.1)}
  .nav-link::after{display:none}
  .nav-link.active{color:var(--primary)}
  .nav-overlay.show{opacity:1;visibility:visible}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .footer-col + .footer-col{padding-left:0;border-left:0}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .section{padding:56px 0}
  .page-hero{padding:118px 0 56px}
  .hero-actions{margin:24px 0 28px}
  .sec-head{margin-bottom:28px}
  .timeline::before{left:19px}
  .tl-item{padding-left:62px}
  .tl-dot{width:40px;height:40px;border-radius:12px;font-size:13px}
  .cta-band{padding:28px;border-radius:16px}
  .faq-a-inner{padding-left:20px}
  .faq-item.open .faq-a-inner{margin-left:0;padding-left:14px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column}
}
@media (max-width:520px){
  .logo-text{font-size:15px}
  .nav-actions .btn{display:none}
  .btn{width:100%;padding:12px 18px}
  .cta-actions .btn{width:100%}
  .faq-q{font-size:15px;padding:16px;gap:12px}
}

/* roulang page: category4 */
:root{
  --bg-0:#060A12;
  --bg-1:#0B1220;
  --surface:rgba(18,26,42,.72);
  --surface-solid:#121A2A;
  --line:rgba(120,160,200,.16);
  --line-soft:rgba(255,255,255,.08);
  --primary:#16E0A8;
  --primary-hi:#3BF0BE;
  --primary-deep:#0A9E7A;
  --accent:#FF7A45;
  --accent-2:#7C5CFF;
  --text-1:#EAF2FF;
  --text-2:#9FB0C8;
  --text-3:#6B7C94;
  --radius:14px;
  --radius-sm:10px;
  --radius-img:12px;
  --shadow-1:0 8px 24px -12px rgba(0,0,0,.6);
  --shadow-2:0 16px 40px -16px rgba(0,0,0,.75);
  --glow:0 0 0 1px rgba(22,224,168,.35),0 10px 30px -10px rgba(22,224,168,.55);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease}
button{font-family:inherit}
h1,h2,h3,h4,p,figure{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
b,strong{font-weight:700}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}

.container{width:100%!important;max-width:1200px!important;margin:0 auto!important;padding:0 24px!important}
@media(max-width:640px){.container{padding:0 20px!important}}

/* ---------- 头部导航 ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:70;
  background:rgba(11,18,32,.28);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line-soft);
  box-shadow:0 6px 24px -18px rgba(0,0,0,.9);
  transition:background .24s ease,box-shadow .24s ease;
}
.site-header.scrolled{
  background:rgba(11,18,32,.95);
  box-shadow:0 12px 32px -18px rgba(0,0,0,.95);
  border-bottom-color:var(--line);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;transition:height .24s ease}
.site-header.scrolled .nav-wrap{height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:28px;height:28px;border-radius:9px;flex:0 0 auto;
  background:linear-gradient(140deg,var(--primary) 0%,var(--primary-deep) 55%,var(--accent-2) 140%);
  box-shadow:0 0 0 1px rgba(22,224,168,.35),0 6px 18px -8px rgba(22,224,168,.7);
  position:relative;
}
.logo-mark::after{
  content:"";position:absolute;inset:8px;border-radius:3px;
  background:rgba(6,10,18,.75);
}
.logo-text{font-size:17px;font-weight:700;color:var(--text-1);white-space:nowrap;letter-spacing:.01em}
.nav-links{display:flex;align-items:center;gap:2px}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  min-height:40px;
  padding:0 14px;
  font-size:15px;
  color:var(--text-2);
  border-radius:10px;
  transition:color .2s ease,background .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:50%;right:50%;bottom:4px;height:2px;
  background:var(--primary);border-radius:2px;
  box-shadow:0 0 10px rgba(22,224,168,.8);
  transition:left .22s ease,right .22s ease;
}
.nav-link:hover{color:var(--text-1);background:rgba(255,255,255,.05)}
.nav-link:hover::after{left:16%;right:16%}
.nav-link.active{color:var(--text-1);background:rgba(22,224,168,.08)}
.nav-link.active::after{left:16%;right:16%}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:10px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  color:var(--text-2);
  cursor:pointer;
  transition:color .2s ease,border-color .2s ease,background .2s ease,transform .2s ease;
}
.icon-btn:hover{color:var(--primary);border-color:rgba(22,224,168,.45);background:rgba(22,224,168,.1)}
.icon-btn:active{transform:translateY(1px)}
.menu-btn{display:none}
.nav-mask{
  position:fixed;inset:0;background:rgba(3,6,12,.6);
  backdrop-filter:blur(2px);
  opacity:0;visibility:hidden;transition:opacity .28s ease,visibility .28s ease;z-index:65;
}
.nav-mask.show{opacity:1;visibility:visible}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 24px;
  border-radius:12px;border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
}
.btn-primary{background:var(--primary);color:#04231C;box-shadow:var(--glow)}
.btn-primary:hover{background:var(--primary-hi);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(22,224,168,.5),0 14px 34px -10px rgba(22,224,168,.6)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(22,224,168,.35),0 6px 16px -8px rgba(22,224,168,.45)}
.btn-ghost{background:transparent;border-color:rgba(120,160,200,.3);color:var(--primary)}
.btn-ghost:hover{border-color:var(--primary);background:rgba(22,224,168,.12);color:var(--primary-hi)}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;border-radius:10px}

/* ---------- 通用组件 ---------- */
.glass{
  background:var(--surface);
  border:1px solid var(--line-soft);
  border-radius:var(--radius);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-1);
}
.tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  font-size:12px;letter-spacing:.06em;
  color:var(--primary);
  background:rgba(22,224,168,.08);
  border:1px solid rgba(22,224,168,.24);
}
.sec{padding:88px 0}
.sec-alt{padding:64px 0}
.sec-head{max-width:800px;margin-bottom:40px}
.sec-title{font-size:clamp(23px,3vw,32px);line-height:1.32;font-weight:700;letter-spacing:.01em}
.sec-desc{margin-top:14px;color:var(--text-2);font-size:16px}
.num{font-variant-numeric:tabular-nums;font-weight:700}

.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:14px;color:var(--text-3)}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:var(--text-3)}
.breadcrumb .now{color:var(--text-1);max-width:60vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  padding:140px 0 72px;
  background-image:linear-gradient(180deg,rgba(6,10,18,.72) 0%,rgba(6,10,18,.9) 55%,var(--bg-0) 100%),url(/assets/images/backpic/back-2.png);
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line-soft);
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    repeating-linear-gradient(0deg,rgba(120,160,200,.055) 0 1px,transparent 1px 64px),
    repeating-linear-gradient(90deg,rgba(120,160,200,.055) 0 1px,transparent 1px 64px);
}
.page-hero .container{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:48px;align-items:center}
.hero-title{
  margin-top:22px;
  font-size:clamp(30px,4.4vw,50px);
  line-height:1.22;
  font-weight:700;
  letter-spacing:.005em;
}
.hero-title em{font-style:normal;color:var(--primary)}
.hero-sub{margin-top:18px;font-size:17px;color:var(--text-2);max-width:560px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-note{margin-top:18px;font-size:13px;color:var(--text-3)}
.hero-figure{position:relative;border-radius:16px;overflow:hidden;border:1px solid var(--line-soft);box-shadow:var(--shadow-2)}
.hero-figure img{width:100%;height:320px;object-fit:cover}
.hero-figure figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:16px 18px;font-size:13px;color:var(--text-2);
  background:linear-gradient(180deg,rgba(6,10,18,0),rgba(6,10,18,.9));
}
.mini-bar{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.mini-item{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:999px;
  font-size:13px;color:var(--text-2);
  background:rgba(18,26,42,.7);
  border:1px solid var(--line);
}
.mini-item b{color:var(--primary);font-weight:700}

/* ---------- 指标卡 ---------- */
.metric-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:-44px;position:relative;z-index:5}
.metric-card{padding:24px 22px 20px;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.metric-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(22,224,168,.3)}
.metric-label{font-size:13px;color:var(--text-3)}
.metric-value{margin-top:10px;font-size:22px;color:var(--text-1);font-weight:700}
.metric-desc{margin-top:8px;font-size:13px;color:var(--text-2);line-height:1.7}
.metric-strip{margin-top:18px;height:3px;border-radius:3px;background:rgba(120,160,200,.16);overflow:hidden}
.metric-strip i{display:block;height:100%;border-radius:3px;background:linear-gradient(90deg,var(--primary-deep),var(--primary));transition:transform .25s ease}
.metric-card:hover .metric-strip i{transform:scaleX(1.06);transform-origin:left;background:linear-gradient(90deg,var(--primary),var(--primary-hi))}

/* ---------- 问答长列表 ---------- */
.qa-wrap{display:grid;gap:22px}
.qa-item{padding:28px 30px;position:relative;overflow:hidden;transition:border-color .22s ease,box-shadow .22s ease}
.qa-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:linear-gradient(180deg,var(--primary),rgba(22,224,168,.1));
}
.qa-item:hover{border-color:rgba(22,224,168,.28);box-shadow:var(--shadow-2)}
.qa-title{font-size:19px;font-weight:700;line-height:1.5;color:var(--text-1)}
.qa-title span{color:var(--primary)}
.qa-text{margin-top:14px;color:var(--text-2);font-size:15.5px;line-height:1.9}
.qa-points{margin-top:16px;display:grid;gap:10px}
.qa-points li{
  position:relative;padding-left:22px;
  font-size:15px;color:var(--text-2);line-height:1.8;
}
.qa-points li::before{
  content:"";position:absolute;left:0;top:11px;
  width:8px;height:8px;border-radius:2px;
  background:rgba(22,224,168,.9);
  box-shadow:0 0 10px rgba(22,224,168,.5);
}
.qa-points li b{color:var(--text-1)}

/* ---------- 双栏对照 ---------- */
.compare{
  display:grid;grid-template-columns:minmax(0,1fr) 1px minmax(0,1fr);
  gap:0;overflow:hidden;
}
.compare-col{padding:30px 28px}
.compare-divider{background:var(--line)}
.compare-head{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700}
.compare-dot{width:10px;height:10px;border-radius:50%;flex:0 0 auto}
.dot-mute{background:var(--text-3)}
.dot-live{background:var(--primary);box-shadow:0 0 12px rgba(22,224,168,.8)}
.compare-list{margin-top:20px;display:grid;gap:12px}
.compare-list li{
  position:relative;padding:12px 16px 12px 34px;
  border-radius:10px;font-size:14.5px;color:var(--text-2);
  background:rgba(255,255,255,.025);
  border:1px solid var(--line-soft);
  transition:background .2s ease,border-color .2s ease,transform .2s ease;
}
.compare-list li::before{
  content:"";position:absolute;left:15px;top:20px;
  width:7px;height:7px;border-radius:50%;background:var(--text-3);
}
.compare-col.accent .compare-list li::before{background:var(--primary)}
.compare-list li:hover{background:rgba(255,255,255,.05);border-color:rgba(22,224,168,.28);transform:translateX(2px)}

/* ---------- 时间线 ---------- */
.timeline{position:relative;padding-left:36px;max-width:860px}
.timeline::before{
  content:"";position:absolute;left:11px;top:10px;bottom:10px;width:1px;
  background:linear-gradient(180deg,rgba(22,224,168,.65),rgba(120,160,200,.12));
}
.tl-item{position:relative;padding:24px 26px;margin-bottom:18px;transition:border-color .22s ease,box-shadow .22s ease}
.tl-item:hover{border-color:rgba(22,224,168,.3);box-shadow:var(--shadow-2)}
.tl-item::before{
  content:"";position:absolute;left:-31px;top:29px;
  width:12px;height:12px;border-radius:50%;
  background:var(--bg-0);border:2px solid var(--primary);
  box-shadow:0 0 0 4px rgba(22,224,168,.12);
}
.tl-num{font-size:12px;letter-spacing:.1em;color:var(--primary);font-weight:700}
.tl-title{margin-top:8px;font-size:17px;font-weight:700}
.tl-text{margin-top:8px;font-size:14.5px;color:var(--text-2)}

/* ---------- 客服方式卡 ---------- */
.support-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.support-card{padding:26px 24px;display:flex;flex-direction:column;gap:12px;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.support-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(22,224,168,.3)}
.support-icon{
  width:44px;height:44px;border-radius:12px;
  border:1px solid rgba(22,224,168,.35);
  background:rgba(22,224,168,.08);
  position:relative;
}
.support-icon::after{
  content:"";position:absolute;inset:14px;border-radius:4px;
  border:2px solid var(--primary);
}
.support-title{font-size:17px;font-weight:700}
.support-text{font-size:14.5px;color:var(--text-2)}
.support-line{margin-top:auto;font-size:13px;color:var(--text-3)}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:920px}
.faq-item{
  position:relative;overflow:hidden;
  background:var(--surface);
  border:1px solid var(--line-soft);
  border-radius:var(--radius);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-1);
  transition:border-color .22s ease,box-shadow .22s ease;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--primary);
  transform:scaleY(0);transform-origin:top;
  transition:transform .2s ease;
}
.faq-item.open{border-color:rgba(22,224,168,.42);box-shadow:0 0 0 1px rgba(22,224,168,.14),var(--shadow-2)}
.faq-item.open::before{transform:scaleY(1)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;
  padding:20px 24px;background:transparent;border:0;cursor:pointer;
  color:var(--text-1);font-size:16px;font-weight:600;text-align:left;line-height:1.6;
  transition:color .2s ease;
}
.faq-q:hover{color:var(--primary-hi)}
.faq-num{font-size:12px;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;flex:0 0 auto}
.faq-icon{margin-left:auto;width:24px;height:24px;position:relative;flex:0 0 auto}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--primary);border-radius:2px;transition:transform .2s ease}
.faq-icon::before{top:11px;left:5px;width:14px;height:2px}
.faq-icon::after{top:5px;left:11px;width:2px;height:14px}
.faq-item.open .faq-icon::after{transform:rotate(90deg) scaleY(0)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease}
.faq-a-inner{padding:0 24px 22px 60px;font-size:15px;color:var(--text-2)}
@media(max-width:640px){.faq-a-inner{padding:0 20px 20px 20px}}

/* ---------- CTA 表单 ---------- */
.cta-band{padding:34px 34px;border-radius:18px;position:relative;overflow:hidden;background:linear-gradient(150deg,rgba(18,26,42,.9),rgba(11,18,32,.96));border:1px solid var(--line);box-shadow:var(--shadow-2)}
.cta-band::after{
  content:"";position:absolute;right:-90px;top:-90px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(22,224,168,.18),transparent 68%);
  pointer-events:none;
}
.cta-grid{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:44px;position:relative;z-index:2}
.cta-title{font-size:clamp(22px,2.6vw,28px);font-weight:700;line-height:1.35}
.cta-text{margin-top:14px;color:var(--text-2);font-size:15.5px}
.cta-points{margin-top:22px;display:grid;gap:12px}
.cta-points li{position:relative;padding-left:24px;font-size:14.5px;color:var(--text-2)}
.cta-points li::before{
  content:"";position:absolute;left:0;top:9px;width:9px;height:9px;border-radius:3px;
  background:rgba(22,224,168,.9);box-shadow:0 0 10px rgba(22,224,168,.55);
}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1 / -1}
.field label{font-size:13px;color:var(--text-2)}
.field input,.field select,.field textarea{
  width:100%;
  background:var(--surface-solid);
  border:1px solid var(--line);
  border-radius:10px;
  color:var(--text-1);
  font-size:15px;
  font-family:inherit;
  padding:12px 14px;
  min-height:46px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field textarea{min-height:112px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);
  box-shadow:0 0 0 2px rgba(22,224,168,.28);
  background:#131C2E;
}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--text-2) 50%),linear-gradient(135deg,var(--text-2) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat}
.form-foot{margin-top:18px;display:flex;flex-wrap:wrap;align-items:center;gap:16px}
.form-tip{font-size:12.5px;color:var(--text-3);flex:1 1 220px}
.form-msg{margin-top:14px;font-size:14px;color:var(--primary);border-left:3px solid var(--primary);padding:10px 14px;background:rgba(22,224,168,.07);border-radius:8px;display:none}
.form-msg.show{display:block}

/* ---------- 返回入口 ---------- */
.return-row{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;align-items:center}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:40px;background:var(--bg-1);border-top:1px solid var(--line);padding:64px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:34px}
.footer-col{padding-right:26px;border-right:1px solid var(--line-soft)}
.footer-col:last-child{border-right:0;padding-right:0}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-desc{font-size:14px;color:var(--text-2);max-width:420px;line-height:1.85}
.footer-title{font-size:15px;font-weight:700;color:var(--text-1);margin-bottom:16px}
.footer-nav{display:grid;gap:11px}
.footer-link{font-size:14px;color:var(--text-2);display:inline-block;transition:color .2s ease,transform .2s ease}
.footer-link:hover{color:var(--primary);transform:translateX(-2px)}
.footer-info{display:grid;gap:11px;font-size:14px;color:var(--text-2)}
.footer-info b{color:var(--text-1);font-weight:600}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line-soft);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}

/* ---------- 响应式 ---------- */
@media(max-width:1023px){
  .menu-btn{display:inline-flex}
  .nav-links{
    position:fixed;top:0;right:0;height:100vh;width:min(320px,86vw);
    flex-direction:column;align-items:stretch;gap:6px;
    padding:88px 20px 28px;
    background:rgba(11,18,32,.97);
    backdrop-filter:blur(18px) saturate(140%);
    -webkit-backdrop-filter:blur(18px) saturate(140%);
    border-left:1px solid var(--line);
    transform:translateX(100%);
    transition:transform .3s ease;
    z-index:68;
    overflow-y:auto;
  }
  .nav-links.open{transform:translateX(0)}
  .nav-link{width:100%;min-height:48px;padding:0 16px;font-size:16px;justify-content:flex-start}
  .nav-link::after{display:none}
  .nav-link.active{background:rgba(22,224,168,.12)}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-figure img{height:260px}
  .metric-row{grid-template-columns:repeat(2,minmax(0,1fr));margin-top:-32px}
  .support-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-grid{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
  .footer-col{border-right:0;padding-right:0}
}
@media(max-width:767px){
  .sec{padding:64px 0}
  .sec-alt{padding:48px 0}
  .page-hero{padding:118px 0 56px}
  .qa-item{padding:22px 20px}
  .compare{grid-template-columns:1fr}
  .compare-divider{height:1px;width:100%}
  .compare-col{padding:24px 20px}
}
@media(max-width:640px){
  .metric-row{grid-template-columns:1fr;margin-top:26px}
  .support-grid{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero-cta .btn{flex:1 1 100%}
  .logo-text{font-size:16px}
  .sec-head{margin-bottom:28px}
}