/* roulang page: index */
:root{
  --c-bg:#0B0D12;
  --c-panel:#141821;
  --c-panel-2:#1B2030;
  --c-line:rgba(255,255,255,.08);
  --c-line-hover:rgba(18,227,166,.42);
  --c-primary:#12E3A6;
  --c-primary-deep:#0AAE80;
  --c-accent:#7C5CFF;
  --c-hot:#FF4D8D;
  --c-warn:#FFB020;
  --c-text:#F2F5F9;
  --c-text-2:#A6B0C3;
  --c-text-3:#6B7688;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-card:0 8px 28px rgba(0,0,0,.45);
  --sh-glow:0 0 0 1px rgba(18,227,166,.35),0 14px 40px rgba(18,227,166,.14);
  --sp-section:96px;
  --container:1320px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--c-bg);color:var(--c-text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .15s ease}
a:hover{color:var(--c-primary)}
h1,h2,h3,h4,p,figure{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer}
input,textarea{font-family:inherit}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";font-weight:700}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 28px}
.sec{padding:var(--sp-section) 0}
.sec-alt{background:#0E1118;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}

/* ---------- topbar ---------- */
.topbar{height:38px;background:#12151D;border-bottom:1px solid var(--c-line);font-size:13px;color:var(--c-text-2)}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:38px}
.topbar-domain{letter-spacing:.02em;color:var(--c-text-3)}
.topbar-note{display:flex;align-items:center;gap:8px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.topbar-dot{width:6px;height:6px;border-radius:50%;background:var(--c-primary);box-shadow:0 0 0 3px rgba(18,227,166,.16);flex:0 0 auto}
.topbar-right{display:flex;align-items:center;gap:18px}
.topbar-right a{color:var(--c-text-2)}
.topbar-right a:hover{color:var(--c-primary)}

/* ---------- header / nav ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:rgba(11,13,18,.92);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-bottom:1px solid var(--c-line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--c-primary),var(--c-accent));display:flex;align-items:center;justify-content:center;color:#08120F;font-weight:800;font-size:16px;letter-spacing:-.04em}
.brand-text{font-size:19px;font-weight:800;letter-spacing:-.02em;color:var(--c-text)}
.brand-text span{color:var(--c-primary)}
.nav-menu{display:flex;align-items:center;gap:26px}
.nav-menu a{position:relative;display:inline-flex;align-items:center;height:68px;font-size:15px;color:var(--c-text-2)}
.nav-menu a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .18s ease}
.nav-menu a:hover{color:var(--c-text)}
.nav-menu a:hover::after{transform:scaleX(1)}
.nav-menu a.active{color:var(--c-primary)}
.nav-menu a.active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.icon-btn{width:44px;height:44px;border-radius:var(--r-btn);border:1px solid var(--c-line);background:transparent;color:var(--c-text-2);display:inline-flex;align-items:center;justify-content:center;transition:.15s ease}
.icon-btn:hover{border-color:var(--c-line-hover);color:var(--c-primary);background:rgba(18,227,166,.06)}
.nav-toggle{display:none}

/* ---------- buttons ---------- */
.btn-main{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 26px;border-radius:var(--r-btn);background:var(--c-primary);color:#08120F;font-weight:700;font-size:15px;border:0;transition:filter .15s ease,box-shadow .15s ease,transform .1s ease}
.btn-main:hover{color:#08120F;filter:brightness(1.08);box-shadow:var(--sh-glow)}
.btn-main:active{background:var(--c-primary-deep);transform:translateY(1px)}
.btn-line{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 24px;border-radius:var(--r-btn);background:transparent;border:1px solid var(--c-line);color:var(--c-primary);font-weight:600;font-size:15px;transition:.15s ease}
.btn-line:hover{border-color:var(--c-primary);background:rgba(18,227,166,.08);color:var(--c-primary)}
.btn-line:active{transform:translateY(1px)}
.btn-lg{height:52px;padding:0 32px;font-size:16px}
.btn-block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-size:15px;font-weight:600}
.link-arrow span{transition:transform .18s ease}
.link-arrow:hover span{transform:translateX(4px)}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;background:url('/assets/images/backpic/back-1.png') center/cover no-repeat}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(112deg,rgba(11,13,18,.97) 0%,rgba(11,13,18,.88) 48%,rgba(124,92,255,.16) 100%)}
.hero::after{content:"";position:absolute;top:-120px;right:-80px;width:620px;height:420px;transform:rotate(-14deg);background:linear-gradient(90deg,rgba(18,227,166,.14),rgba(124,92,255,.10) 60%,transparent);pointer-events:none}
.hero-inner{position:relative;z-index:2;display:flex;align-items:center;min-height:600px;padding:72px 0}
.hero-copy{padding-right:32px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px}
.pill{display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 14px;border-radius:var(--r-pill);font-size:13px;border:1px solid rgba(18,227,166,.32);background:rgba(18,227,166,.10);color:var(--c-primary)}
.pill-mute{border-color:var(--c-line);background:var(--c-panel-2);color:var(--c-text-2)}
.hero h1{font-size:48px;line-height:1.18;font-weight:800;letter-spacing:-.02em;margin-bottom:20px}
.hero h1 em{font-style:normal;color:var(--c-primary)}
.hero-sub{font-size:17px;color:var(--c-text-2);max-width:600px;margin-bottom:30px}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px}
.hero-tags .pill{height:32px;padding:0 16px}
.hero-visual{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--c-line);box-shadow:var(--sh-card);min-height:360px}
.hero-visual-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.55}
.hero-visual::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,13,18,.15) 0%,rgba(11,13,18,.78) 100%)}
.hero-visual img{position:relative;z-index:2;width:100%;height:100%;min-height:360px;object-fit:cover}
.hero-visual-tag{position:absolute;z-index:3;left:18px;bottom:18px;display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;border-radius:var(--r-pill);background:rgba(11,13,18,.78);border:1px solid var(--c-line);font-size:13px;color:var(--c-text)}

/* ---------- stats ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--c-line);border-radius:var(--r-card);background:var(--c-panel);overflow:hidden;box-shadow:var(--sh-card)}
.stat{padding:26px 24px;border-right:1px solid var(--c-line)}
.stat:last-child{border-right:0}
.stat-num{font-size:30px;line-height:1.2;color:var(--c-primary);font-variant-numeric:tabular-nums;font-weight:700;letter-spacing:-.02em}
.stat-num small{font-size:15px;color:var(--c-text-2);margin-left:4px;font-weight:600}
.stat-txt{font-size:13px;color:var(--c-text-2);margin-top:6px}

/* ---------- section head ---------- */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.sec-title{font-size:32px;font-weight:700;letter-spacing:-.02em;line-height:1.3}
.sec-sub{font-size:15px;color:var(--c-text-2);margin-top:8px}
.sec-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--c-primary);margin-bottom:10px}
.sec-eyebrow::before{content:"";width:18px;height:2px;background:var(--c-primary);display:block}

/* ---------- product cards ---------- */
.p-card{display:flex;flex-direction:column;height:100%;background:var(--c-panel);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-card);transition:transform .15s ease,border-color .15s ease,box-shadow .15s ease}
.p-card:hover{transform:translateY(-2px);border-color:var(--c-line-hover);box-shadow:var(--sh-card),var(--sh-glow)}
.p-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--c-panel-2)}
.p-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.p-card:hover .p-thumb img{transform:scale(1.04)}
.badge-hot{position:absolute;left:12px;top:12px;height:24px;padding:0 10px;display:inline-flex;align-items:center;border-radius:var(--r-pill);background:var(--c-hot);color:#fff;font-size:12px;font-weight:700}
.badge-purple{position:absolute;left:12px;top:12px;height:24px;padding:0 10px;display:inline-flex;align-items:center;border-radius:var(--r-pill);background:rgba(124,92,255,.9);color:#fff;font-size:12px;font-weight:700}
.fav{position:absolute;right:12px;top:12px;width:32px;height:32px;border-radius:50%;background:rgba(11,13,18,.7);border:1px solid var(--c-line);color:var(--c-text-2);display:inline-flex;align-items:center;justify-content:center;font-size:14px}
.fav:hover{color:var(--c-primary);border-color:var(--c-line-hover)}
.p-body{padding:18px 18px 20px;display:flex;flex-direction:column;flex:1}
.p-title{font-size:17px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:51px}
.p-title a:hover{color:var(--c-primary)}
.p-meta{font-size:13px;color:var(--c-text-2);margin-top:8px;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.p-price{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:14px;padding-top:14px;border-top:1px dashed var(--c-line);font-size:13px;color:var(--c-text-2)}
.p-price b{color:var(--c-primary);font-size:15px;font-variant-numeric:tabular-nums}
.p-btn{margin-top:16px;height:42px;width:100%;border-radius:var(--r-btn);border:1px solid var(--c-line);background:transparent;color:var(--c-text);font-size:14px;font-weight:600;transition:.15s ease}
.p-btn:hover{border-color:transparent;background:var(--c-primary);color:#08120F}

/* ---------- scene ---------- */
.scene-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr;grid-template-rows:200px 200px;gap:20px}
.scene{position:relative;overflow:hidden;border-radius:var(--r-card);border:1px solid var(--c-line);background:var(--c-panel);display:flex;align-items:flex-end;padding:22px;box-shadow:var(--sh-card);transition:.15s ease}
.scene:hover{border-color:var(--c-line-hover);transform:translateY(-2px)}
.scene-img{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.5;transition:transform .35s ease}
.scene:hover .scene-img{transform:scale(1.05)}
.scene::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,13,18,.12) 0%,rgba(11,13,18,.92) 100%)}
.scene-body{position:relative;z-index:2;width:100%}
.scene h3{font-size:20px;font-weight:700;margin-bottom:6px}
.scene p{font-size:13px;color:var(--c-text-2)}
.scene-a{grid-row:span 2}
.scene-a h3{font-size:24px}
.scene-d{grid-column:2/4}
.scene-arrow{position:absolute;right:20px;bottom:20px;z-index:3;color:var(--c-primary);font-size:18px;transition:transform .18s ease}
.scene:hover .scene-arrow{transform:translateX(4px)}

/* ---------- reviews ---------- */
.rev-track{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;padding:4px 4px 14px;scrollbar-width:none}
.rev-track::-webkit-scrollbar{display:none}
.rev-card{flex:0 0 28%;scroll-snap-align:start;background:var(--c-panel);border:1px solid var(--c-line);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-card)}
.rev-top{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.rev-avatar{width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,var(--c-accent),var(--c-primary));display:flex;align-items:center;justify-content:center;color:#08120F;font-weight:700;font-size:15px;flex:0 0 auto}
.rev-name{font-size:15px;font-weight:600}
.rev-role{font-size:12px;color:var(--c-text-3)}
.rev-stars{color:var(--c-warn);font-size:13px;letter-spacing:2px;margin-bottom:10px}
.rev-text{font-size:14px;color:var(--c-text-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;min-height:71px}
.rev-time{font-size:12px;color:var(--c-text-3);margin-top:12px;font-variant-numeric:tabular-nums}
.rev-dots{display:flex;gap:8px;justify-content:center;margin-top:8px}
.rev-dots i{width:7px;height:7px;border-radius:50%;background:var(--c-line);display:block}
.rev-dots i.on{background:var(--c-primary);width:20px;border-radius:var(--r-pill)}

/* ---------- guarantee ---------- */
.guars{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);background:#0E1118}
.guar{padding:34px 26px;border-right:1px solid var(--c-line);display:flex;gap:14px}
.guar:last-child{border-right:0}
.guar-ico{width:40px;height:40px;border-radius:10px;background:rgba(18,227,166,.10);border:1px solid rgba(18,227,166,.28);color:var(--c-primary);display:flex;align-items:center;justify-content:center;font-size:17px;flex:0 0 auto}
.guar h3{font-size:16px;font-weight:600;margin-bottom:4px}
.guar p{font-size:13px;color:var(--c-text-2);line-height:1.65}

/* ---------- news ---------- */
.news-card{display:flex;flex-direction:column;height:100%;background:var(--c-panel);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-card);transition:transform .15s ease,border-color .15s ease,box-shadow .15s ease}
.news-card:hover{transform:translateY(-2px);border-color:var(--c-line-hover);box-shadow:var(--sh-card),var(--sh-glow)}
.news-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,#1B2030,#101520)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.news-body{padding:18px;display:flex;flex-direction:column;flex:1}
.news-cat{align-self:flex-start;height:24px;padding:0 10px;border-radius:var(--r-pill);background:rgba(18,227,166,.12);color:var(--c-primary);font-size:12px;display:inline-flex;align-items:center;margin-bottom:12px}
.news-title{font-size:17px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:51px}
.news-card:hover .news-title{color:var(--c-primary)}
.news-excerpt{font-size:13px;color:var(--c-text-2);line-height:1.7;margin-top:10px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-time{font-size:12px;color:var(--c-text-3);margin-top:14px;padding-top:12px;border-top:1px dashed var(--c-line);font-variant-numeric:tabular-nums}
.empty-state{width:100%;text-align:center;padding:64px 20px;background:var(--c-panel);border:1px dashed var(--c-line);border-radius:var(--r-card)}
.empty-state .ico{width:52px;height:52px;margin:0 auto 16px;border-radius:50%;border:1px solid var(--c-line);color:var(--c-primary);display:flex;align-items:center;justify-content:center;font-size:20px}
.empty-state p{color:var(--c-text-2);font-size:15px;margin-bottom:18px}
.news-more{display:flex;justify-content:center;margin-top:36px}

/* ---------- cta ---------- */
.cta{position:relative;overflow:hidden;border-radius:var(--r-card);border:1px solid var(--c-line);background:linear-gradient(105deg,rgba(18,227,166,.16) 0%,rgba(124,92,255,.16) 55%,rgba(20,24,33,.9) 100%),var(--c-panel)}
.cta::after{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.07) 1px,transparent 1px);background-size:18px 18px;opacity:.7;pointer-events:none}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.4fr 1fr;gap:40px;padding:52px;align-items:center}
.cta h2{font-size:30px;font-weight:700;letter-spacing:-.02em;margin-bottom:12px}
.cta p.lead{font-size:15px;color:var(--c-text-2);margin-bottom:20px}
.cta-points{display:flex;flex-wrap:wrap;gap:12px 24px}
.cta-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--c-text-2)}
.cta-points li::before{content:"✓";color:var(--c-primary);font-weight:800}
.cta-btns{display:flex;flex-direction:column;gap:14px}

/* ---------- faq ---------- */
.faq-list{border-top:1px solid var(--c-line)}
.faq-item{border-bottom:1px solid var(--c-line);position:relative}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:24px 8px 24px 0;background:transparent;border:0;color:var(--c-text);font-size:17px;font-weight:600;text-align:left;line-height:1.5;transition:color .15s ease}
.faq-q:hover{color:var(--c-primary)}
.faq-sign{position:relative;width:20px;height:20px;flex:0 0 auto}
.faq-sign::before,.faq-sign::after{content:"";position:absolute;background:var(--c-primary);border-radius:2px}
.faq-sign::before{left:0;top:9px;width:20px;height:2px}
.faq-sign::after{left:9px;top:0;width:2px;height:20px;transition:transform .2s ease,opacity .2s ease}
.faq-item.open .faq-sign::after{transform:rotate(90deg);opacity:0}
.faq-item.open .faq-q{color:var(--c-primary)}
.faq-item::before{content:"";position:absolute;left:-14px;top:22px;bottom:22px;width:3px;background:var(--c-primary);border-radius:2px;opacity:0;transition:opacity .2s ease}
.faq-item.open::before{opacity:1}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-a p{padding:0 8px 26px 0;font-size:15px;color:var(--c-text-2);line-height:1.85}

/* ---------- footer ---------- */
.site-footer{background:#0A0C11;border-top:1px solid var(--c-line);padding:64px 0 0;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.foot-desc{font-size:14px;color:var(--c-text-2);line-height:1.8;max-width:340px}
.foot-title{font-size:14px;color:var(--c-primary);font-weight:700;margin-bottom:18px;letter-spacing:.02em}
.foot-list li{margin-bottom:12px}
.foot-list a{font-size:14px;color:var(--c-text-2)}
.foot-list a:hover{color:var(--c-primary)}
.foot-info{font-size:14px;color:var(--c-text-2);line-height:1.9}
.foot-qr{width:104px;height:104px;border-radius:var(--r-img);border:1px solid var(--c-line);background:linear-gradient(135deg,#1B2030,#0F1219);display:flex;align-items:center;justify-content:center;color:var(--c-text-3);font-size:12px;text-align:center;margin-top:14px}
.foot-bottom{border-top:1px solid var(--c-line);padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--c-text-3)}
.foot-links{display:flex;flex-wrap:wrap;gap:18px}
.foot-links a{color:var(--c-text-3)}
.foot-links a:hover{color:var(--c-primary)}

/* ---------- back to top ---------- */
.to-top{position:fixed;right:24px;bottom:24px;width:46px;height:46px;border-radius:50%;border:1px solid rgba(18,227,166,.45);background:rgba(11,13,18,.9);color:var(--c-primary);display:flex;align-items:center;justify-content:center;font-size:18px;opacity:0;visibility:hidden;transition:.2s ease;z-index:1040}
.to-top.show{opacity:1;visibility:visible}
.to-top:hover{background:var(--c-primary);color:#08120F}

/* ---------- mobile drawer ---------- */
.drawer{position:fixed;inset:0;z-index:1060;background:var(--c-bg);transform:translateX(100%);opacity:0;transition:transform .18s ease,opacity .18s ease;display:flex;flex-direction:column;padding:20px}
.drawer.open{transform:translateX(0);opacity:1}
.drawer-top{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--c-line)}
.drawer-nav{margin-top:12px;flex:1}
.drawer-nav a{display:flex;align-items:center;height:56px;font-size:17px;color:var(--c-text-2);border-bottom:1px solid var(--c-line)}
.drawer-nav a.active{color:var(--c-primary)}
.drawer-foot{padding-top:16px}

/* ---------- responsive ---------- */
@media (max-width:1200px){
  .hero h1{font-size:42px}
  .rev-card{flex:0 0 33%}
  .scene-grid{grid-template-columns:1.2fr 1fr 1fr}
}
@media (max-width:992px){
  :root{--sp-section:72px}
  .nav-menu{display:none}
  .nav-toggle{display:inline-flex}
  .nav-actions .btn-main{display:none}
  .hero-inner{min-height:auto;padding:56px 0}
  .hero-copy{padding-right:0;margin-bottom:36px}
  .hero h1{font-size:36px}
  .stats{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--c-line)}
  .guars{grid-template-columns:repeat(2,1fr)}
  .guar:nth-child(2){border-right:0}
  .guar:nth-child(1),.guar:nth-child(2){border-bottom:1px solid var(--c-line)}
  .cta-inner{grid-template-columns:1fr;padding:36px 28px}
  .scene-grid{grid-template-columns:1fr 1fr;grid-template-rows:auto}
  .scene{min-height:180px}
  .scene-a{grid-column:span 2;grid-row:auto;min-height:230px}
  .scene-d{grid-column:span 2}
  .rev-card{flex:0 0 46%}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  :root{--sp-section:60px}
  .container{padding:0 20px}
  .sec-title{font-size:23px}
  .hero h1{font-size:30px}
  .hero-sub{font-size:15px}
  .hero-visual,.hero-visual img{min-height:260px}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px}
  .rev-card{flex:0 0 82%}
  .rev-track{padding-bottom:8px}
  .foot-grid{grid-template-columns:1fr;gap:32px}
  .foot-bottom{flex-direction:column;align-items:flex-start}
  .cta h2{font-size:24px}
  .faq-q{font-size:16px;padding:20px 4px 20px 0}
  .guar{padding:24px 18px}
  .stat{padding:20px 16px}
}
@media (max-width:480px){
  .hero h1{font-size:27px}
  .hero-btns .btn-main,.hero-btns .btn-line{width:100%}
  .scene-grid{grid-template-columns:1fr}
  .scene-a,.scene-d{grid-column:span 1}
  .cta-points{flex-direction:column;gap:10px}
  .topbar-note{display:none}
}

/* roulang page: article */
:root{
  --c-bg:#0B0D12;
  --c-panel:#141821;
  --c-panel-2:#1B2030;
  --c-line:rgba(255,255,255,.08);
  --c-line-hover:rgba(18,227,166,.42);
  --c-primary:#12E3A6;
  --c-primary-deep:#0AAE80;
  --c-accent:#7C5CFF;
  --c-hot:#FF4D8D;
  --c-warn:#FFB020;
  --c-text:#F2F5F9;
  --c-text-2:#A6B0C3;
  --c-text-3:#6B7688;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-card:0 8px 28px rgba(0,0,0,.45);
  --sh-glow:0 0 0 1px rgba(18,227,166,.35), 0 14px 40px rgba(18,227,166,.14);
  --sp-section:96px;
  --container:1320px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",Inter,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .18s ease,border-color .18s ease,background-color .18s ease;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";font-weight:700;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}
.container{max-width:var(--container);padding-left:28px;padding-right:28px;}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:var(--r-btn);
  background:var(--c-primary);color:#06110D;font-weight:700;font-size:15px;
  transition:background-color .18s ease,box-shadow .18s ease,transform .12s ease;
}
.btn-main:hover{background:#2AF0B4;color:#06110D;box-shadow:var(--sh-glow);}
.btn-main:active{background:var(--c-primary-deep);transform:translateY(1px);}
.btn-main.lg{height:52px;padding:0 32px;font-size:16px;}
.btn-outline{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  border:1px solid var(--c-line);color:var(--c-primary);background:transparent;
  font-weight:600;font-size:15px;
  transition:border-color .18s ease,background-color .18s ease,box-shadow .18s ease,transform .12s ease;
}
.btn-outline:hover{border-color:var(--c-primary);background:rgba(18,227,166,.08);color:var(--c-primary);}
.btn-outline:active{transform:translateY(1px);}
.btn-outline.lg{height:52px;padding:0 30px;font-size:16px;}
.btn-ghost{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-size:14px;font-weight:600;}
.btn-ghost .arw{transition:transform .18s ease;}
.btn-ghost:hover .arw{transform:translateX(4px);}

/* ============ 顶部信息条 ============ */
.topbar{background:#0E1119;border-bottom:1px solid var(--c-line);font-size:13px;color:var(--c-text-2);}
.topbar-inner{display:flex;align-items:center;gap:20px;height:38px;}
.topbar-domain{color:var(--c-text-3);letter-spacing:.04em;flex-shrink:0;}
.topbar-notice{flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--c-text-2);}
.topbar-notice i{color:var(--c-primary);margin-right:6px;}
.topbar-links{display:flex;align-items:center;gap:18px;flex-shrink:0;}
.topbar-links a{color:var(--c-text-2);}
.topbar-links a:hover{color:var(--c-primary);}
.topbar-links .split{width:1px;height:14px;background:var(--c-line);display:inline-block;}

/* ============ 主导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(11,13,18,.92);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid var(--c-line);
}
.nav-inner{display:flex;align-items:center;gap:26px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,var(--c-primary),var(--c-accent));
  color:#06110D;font-weight:800;font-size:14px;display:grid;place-items:center;letter-spacing:.02em;
}
.brand-text{font-size:18px;font-weight:700;color:var(--c-text);letter-spacing:.01em;white-space:nowrap;}
.brand-text span{color:var(--c-primary);}
.nav-menu{display:flex;align-items:center;gap:4px;flex:1;min-width:0;}
.nav-menu a{
  position:relative;display:inline-flex;align-items:center;height:68px;
  padding:0 14px;font-size:15px;color:var(--c-text-2);white-space:nowrap;
}
.nav-menu a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:14px;height:2px;border-radius:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;
  transition:transform .18s ease;
}
.nav-menu a:hover{color:var(--c-text);}
.nav-menu a:hover::after{transform:scaleX(1);}
.nav-menu a.active{color:var(--c-primary);}
.nav-menu a.active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.icon-btn{
  width:38px;height:38px;border-radius:10px;display:grid;place-items:center;
  border:1px solid var(--c-line);color:var(--c-text-2);background:transparent;
  transition:color .18s ease,border-color .18s ease,background-color .18s ease;
}
.icon-btn:hover{color:var(--c-primary);border-color:var(--c-line-hover);background:rgba(18,227,166,.08);}
.nav-toggle{display:none;}

/* ============ 文章主体 ============ */
.article-wrap{padding:26px 0 var(--sp-section);}
.crumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--c-text-3);margin-bottom:22px;
}
.crumb a{color:var(--c-text-2);}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{color:var(--c-text-3);opacity:.7;}
.crumb .current{max-width:460px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--c-text-3);}
.article-head{margin-bottom:40px;}
.article-title{
  font-size:38px;line-height:1.3;font-weight:800;letter-spacing:-.02em;
  max-width:980px;
}
.article-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:18px 0 26px;font-size:13px;color:var(--c-text-2);}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:13px;background:rgba(18,227,166,.12);color:var(--c-primary);
  border:1px solid rgba(18,227,166,.28);white-space:nowrap;
}
.meta-dot{color:var(--c-text-3);opacity:.6;}
.article-cover{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--c-line);aspect-ratio:16/9;background:var(--c-panel);
}
.article-cover img{width:100%;height:100%;object-fit:cover;}
.article-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,13,18,.02) 30%,rgba(11,13,18,.6) 100%);
}
.article-cover .cover-cap{
  position:absolute;left:20px;bottom:18px;z-index:2;
  font-size:13px;color:#DDE6F2;background:rgba(11,13,18,.6);
  border:1px solid var(--c-line);border-radius:var(--r-pill);padding:6px 14px;
}

.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 328px;gap:48px;align-items:start;}
.article-main{width:100%;max-width:820px;margin:0 auto;min-width:0;}

.article-content{font-size:16px;line-height:1.9;color:#E4E9F2;word-wrap:break-word;}
.article-content p{margin:0 0 1.2em;}
.article-content h2{
  position:relative;font-size:26px;font-weight:700;line-height:1.42;
  margin:46px 0 18px;padding-left:16px;color:var(--c-text);
}
.article-content h2::before{
  content:"";position:absolute;left:0;top:.26em;bottom:.26em;width:4px;border-radius:2px;
  background:linear-gradient(180deg,var(--c-primary),var(--c-accent));
}
.article-content h3{
  position:relative;font-size:20px;font-weight:600;line-height:1.5;
  margin:34px 0 14px;padding-left:16px;color:var(--c-text);
}
.article-content h3::before{
  content:"";position:absolute;left:0;top:.32em;bottom:.32em;width:4px;border-radius:2px;
  background:var(--c-primary);opacity:.72;
}
.article-content ul,.article-content ol{margin:0 0 1.3em;padding-left:0;}
.article-content li{position:relative;padding-left:22px;margin-bottom:.58em;}
.article-content ul li::before{
  content:"";position:absolute;left:6px;top:.76em;width:6px;height:6px;border-radius:50%;
  background:var(--c-primary);
}
.article-content ol{counter-reset:li;}
.article-content ol li{counter-increment:li;padding-left:26px;}
.article-content ol li::before{
  content:counter(li) ".";
  position:absolute;left:0;top:0;color:var(--c-primary);font-weight:700;font-size:15px;
}
.article-content blockquote{
  margin:26px 0;padding:18px 22px;background:var(--c-panel);
  border-left:3px solid var(--c-primary);border-radius:0 var(--r-img) var(--r-img) 0;
  color:var(--c-text-2);
}
.article-content blockquote p:last-child{margin-bottom:0;}
.article-content img{border-radius:var(--r-img);margin:26px auto;border:1px solid var(--c-line);height:auto;}
.article-content figure{margin:26px 0;}
.article-content figcaption{text-align:center;font-size:13px;color:var(--c-text-3);margin-top:10px;}
.article-content a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;}
.article-content a:hover{color:#5BF3C6;}
.article-content strong{color:#FFFFFF;font-weight:700;}
.article-content table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;}
.article-content th,.article-content td{border:1px solid var(--c-line);padding:12px 14px;text-align:left;}
.article-content th{background:var(--c-panel-2);color:var(--c-text);font-weight:600;}
.article-content code{
  background:var(--c-panel-2);padding:2px 6px;border-radius:6px;
  font-size:14px;color:var(--c-primary);
}
.article-content hr{border:0;border-top:1px solid var(--c-line);margin:34px 0;}

.empty-state{
  text-align:center;padding:64px 24px;background:var(--c-panel);
  border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-card);
}
.empty-icon{
  width:64px;height:64px;margin:0 auto 20px;border-radius:50%;
  display:grid;place-items:center;color:var(--c-primary);font-size:24px;
  border:1px solid var(--c-line-hover);background:rgba(18,227,166,.08);
}
.empty-title{font-size:22px;font-weight:700;margin-bottom:12px;}
.empty-text{font-size:15px;color:var(--c-text-2);max-width:520px;margin:0 auto 26px;}

/* 标签 */
.tag-row{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  margin-top:40px;padding-top:26px;border-top:1px solid var(--c-line);
}
.tag-row .tag-label{font-size:13px;color:var(--c-text-3);margin-right:4px;}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);background:var(--c-panel);font-size:13px;color:var(--c-text-2);
  transition:color .18s ease,border-color .18s ease,background-color .18s ease;
}
.tag:hover{color:var(--c-primary);border-color:var(--c-line-hover);background:rgba(18,227,166,.08);}

/* 上一篇 / 下一篇 */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:28px;}
.post-nav a{
  display:block;padding:18px 20px;background:var(--c-panel);
  border:1px solid var(--c-line);border-radius:var(--r-card);
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.post-nav a:hover{border-color:var(--c-line-hover);transform:translateY(-2px);box-shadow:var(--sh-glow);color:var(--c-text);}
.post-nav .dir{display:block;font-size:12px;letter-spacing:.08em;color:var(--c-text-3);margin-bottom:6px;}
.post-nav .ttl{font-size:15px;font-weight:600;line-height:1.5;}
.post-nav .next{text-align:right;}

/* 侧栏 */
.article-side{position:sticky;top:88px;display:flex;flex-direction:column;gap:20px;min-width:0;}
.side-card{
  background:var(--c-panel);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--sh-card);
}
.side-title{
  font-size:15px;font-weight:700;color:var(--c-text);margin-bottom:14px;
  display:flex;align-items:center;gap:8px;
}
.side-title::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--c-primary);}
.toc-list a{
  display:block;font-size:14px;line-height:1.5;color:var(--c-text-2);
  padding:7px 0 7px 12px;border-left:2px solid var(--c-line);
  transition:color .18s ease,border-color .18s ease;
}
.toc-list a:hover{color:var(--c-primary);border-color:var(--c-primary);}
.toc-list a.lv3{padding-left:24px;font-size:13px;color:var(--c-text-3);}
.cat-list li:last-child a{border-bottom:0;}
.cat-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:14px;color:var(--c-text-2);padding:11px 0;
  border-bottom:1px dashed var(--c-line);
}
.cat-list a:hover{color:var(--c-primary);}
.cat-list .arrow{color:var(--c-text-3);font-size:12px;transition:transform .18s ease,color .18s ease;}
.cat-list a:hover .arrow{transform:translateX(4px);color:var(--c-primary);}
.side-cta{
  background:linear-gradient(140deg,rgba(18,227,166,.14),rgba(124,92,255,.16));
  border:1px solid var(--c-line);border-radius:var(--r-card);padding:22px;
}
.side-cta h2{font-size:16px;font-weight:700;margin-bottom:8px;}
.side-cta p{font-size:13px;color:var(--c-text-2);line-height:1.8;margin-bottom:16px;}
.side-cta .btn-main{width:100%;height:44px;}

/* 相关推荐 */
.rel-section{margin-top:72px;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:24px;}
.sec-head h2{font-size:26px;font-weight:700;letter-spacing:-.01em;}
.sec-head .more{font-size:14px;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px;white-space:nowrap;}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.card-post{
  display:flex;flex-direction:column;height:100%;overflow:hidden;
  background:var(--c-panel);border:1px solid var(--c-line);border-radius:var(--r-card);
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.card-post:hover{border-color:var(--c-line-hover);transform:translateY(-2px);box-shadow:var(--sh-glow);}
.card-post .thumb{aspect-ratio:16/9;overflow:hidden;background:var(--c-panel-2);}
.card-post .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.card-post:hover .thumb img{transform:scale(1.05);}
.card-post .body{padding:18px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-post h3{
  font-size:17px;font-weight:600;line-height:1.5;color:var(--c-text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-post:hover h3{color:var(--c-primary);}
.card-post p{
  font-size:14px;color:var(--c-text-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-post .time{font-size:13px;color:var(--c-text-3);margin-top:auto;display:flex;align-items:center;gap:6px;}

/* 转化条 */
.cta-section{padding:0 0 var(--sp-section);}
.cta-band{
  position:relative;overflow:hidden;border:1px solid var(--c-line);border-radius:var(--r-card);
  background:linear-gradient(115deg,rgba(18,227,166,.16),rgba(124,92,255,.16) 58%,rgba(11,13,18,0) 100%),var(--c-panel);
  padding:44px;display:grid;grid-template-columns:1.5fr 1fr;gap:34px;align-items:center;
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:radial-gradient(rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:18px 18px;
}
.cta-band > *{position:relative;z-index:1;}
.cta-band h2{font-size:28px;font-weight:700;line-height:1.35;margin-bottom:12px;}
.cta-band p{font-size:15px;color:var(--c-text-2);margin-bottom:18px;}
.cta-points li{
  position:relative;padding-left:26px;font-size:14px;color:var(--c-text-2);margin-bottom:8px;
}
.cta-points li::before{
  content:"✓";position:absolute;left:0;top:0;color:var(--c-primary);font-weight:700;
}
.cta-actions{display:flex;flex-direction:column;gap:14px;}

/* 返回顶部 */
.back-top{
  position:fixed;right:24px;bottom:24px;width:46px;height:46px;border-radius:50%;
  display:grid;place-items:center;z-index:70;
  background:var(--c-bg);border:1px solid var(--c-line-hover);color:var(--c-primary);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .22s ease,transform .22s ease,visibility .22s ease,background-color .18s ease,box-shadow .18s ease;
}
.back-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.back-top:hover{background:rgba(18,227,166,.12);box-shadow:var(--sh-glow);}

/* ============ 页脚 ============ */
.site-footer{background:#090B10;border-top:1px solid var(--c-line);padding:56px 0 0;}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:40px;}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.foot-desc{font-size:14px;color:var(--c-text-2);line-height:1.85;max-width:340px;}
.foot-title{font-size:14px;font-weight:700;color:var(--c-primary);margin-bottom:16px;letter-spacing:.02em;}
.foot-list li{margin-bottom:10px;}
.foot-list a{font-size:14px;color:var(--c-text-2);}
.foot-list a:hover{color:var(--c-primary);}
.foot-info{font-size:13px;color:var(--c-text-2);line-height:2;}
.foot-qr{
  margin-top:16px;width:110px;height:110px;border-radius:var(--r-img);
  border:1px dashed var(--c-line);display:grid;place-items:center;text-align:center;
  font-size:12px;color:var(--c-text-3);background:var(--c-panel);
}
.foot-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  padding:20px 0 28px;border-top:1px solid var(--c-line);font-size:13px;color:var(--c-text-3);
}
.foot-links{display:flex;gap:18px;flex-wrap:wrap;}
.foot-links a{color:var(--c-text-3);}
.foot-links a:hover{color:var(--c-primary);}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:34px;}
  .article-title{font-size:34px;}
  .foot-grid{grid-template-columns:1.5fr 1fr 1fr;gap:32px;}
}
@media (max-width:991px){
  :root{--sp-section:60px;}
  .container{padding-left:20px;padding-right:20px;}
  .nav-toggle{display:grid;}
  .nav-menu{
    position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);
    display:flex;flex-direction:column;align-items:stretch;gap:0;
    padding:88px 24px 32px;background:var(--c-bg);
    border-left:1px solid var(--c-line);z-index:80;
    transform:translateX(100%);opacity:0;pointer-events:none;
    transition:transform .18s ease,opacity .18s ease;
    overflow-y:auto;
  }
  body.nav-open .nav-menu{transform:translateX(0);opacity:1;pointer-events:auto;}
  .nav-menu a{
    height:56px;padding:0 4px;font-size:16px;border-bottom:1px solid var(--c-line);
    display:flex;align-items:center;
  }
  .nav-menu a::after{display:none;}
  .nav-menu a.active{color:var(--c-primary);}
  .article-side{display:none;}
  .article-layout{grid-template-columns:minmax(0,1fr);}
  .article-main{max-width:100%;}
  .rel-grid{
    display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;
    padding-bottom:8px;-webkit-overflow-scrolling:touch;
  }
  .rel-grid::-webkit-scrollbar{height:6px;}
  .rel-grid::-webkit-scrollbar-thumb{background:var(--c-panel-2);border-radius:3px;}
  .rel-grid .card-post{flex:0 0 76%;scroll-snap-align:start;}
  .cta-band{grid-template-columns:1fr;padding:32px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .foot-desc{max-width:100%;}
}
@media (max-width:768px){
  .topbar-notice{display:none;}
  .topbar-inner{justify-content:space-between;}
  .article-wrap{padding-top:20px;}
  .article-title{font-size:27px;}
  .article-meta{gap:8px;margin:14px 0 20px;}
  .article-content{font-size:16px;line-height:1.85;}
  .article-content h2{font-size:22px;margin:36px 0 14px;}
  .article-content h3{font-size:18px;margin:28px 0 12px;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .sec-head h2{font-size:22px;}
  .post-nav{grid-template-columns:1fr;}
  .post-nav .next{text-align:left;}
  .cta-band h2{font-size:22px;}
  .cta-actions{flex-direction:column;}
  .cta-band .btn-main.lg,.cta-band .btn-outline.lg{width:100%;}
  .back-top{right:16px;bottom:16px;width:42px;height:42px;}
}
@media (max-width:520px){
  .article-title{font-size:23px;}
  .topbar-links .hide-xs{display:none;}
  .rel-grid .card-post{flex:0 0 86%;}
  .foot-grid{grid-template-columns:1fr;}
  .foot-bottom{flex-direction:column;align-items:flex-start;}
  .brand-text{font-size:16px;}
}

/* roulang page: category1 */
:root{
  --c-bg:#0B0D12;
  --c-panel:#141821;
  --c-panel-2:#1B2030;
  --c-line:rgba(255,255,255,.08);
  --c-line-hover:rgba(18,227,166,.42);
  --c-primary:#12E3A6;
  --c-primary-deep:#0AAE80;
  --c-accent:#7C5CFF;
  --c-hot:#FF4D8D;
  --c-warn:#FFB020;
  --c-text:#F2F5F9;
  --c-text-2:#A6B0C3;
  --c-text-3:#6B7688;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-card:0 8px 28px rgba(0,0,0,.45);
  --sh-glow:0 0 0 1px rgba(18,227,166,.35),0 14px 40px rgba(18,227,166,.14);
  --sp-section:96px;
  --container:1320px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",Inter,system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .18s ease}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:-.015em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit}
input,textarea,select{font:inherit;color:inherit}
.container{width:100%;max-width:var(--container);padding-left:28px;padding-right:28px;margin-left:auto;margin-right:auto}
.num{font-variant-numeric:tabular-nums;font-weight:700}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}

/* ---------- 顶部信息条 ---------- */
.site-topbar{background:var(--c-panel-2);border-bottom:1px solid var(--c-line);font-size:13px;color:var(--c-text-2)}
.topbar-inner{display:flex;align-items:center;gap:20px;min-height:38px}
.tb-left{flex:0 0 auto;letter-spacing:.01em}
.tb-mid{flex:1 1 auto;min-width:0;text-align:center;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tb-mid em{font-style:normal;color:var(--c-primary);font-weight:600}
.tb-right{flex:0 0 auto;display:flex;align-items:center;gap:16px}
.tb-right a{color:var(--c-text-2)}
.tb-right a:hover{color:var(--c-primary)}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(11,13,18,.92);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--c-line);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:10px;
  background:linear-gradient(135deg,var(--c-primary),var(--c-accent));
  color:#06120E;font-weight:800;font-size:14px;letter-spacing:-.03em;
}
.brand-text{font-size:19px;font-weight:800;letter-spacing:-.02em;color:var(--c-text)}
.brand-text span{color:var(--c-primary)}
.nav-menu{display:flex;align-items:center;gap:4px;flex:1 1 auto;justify-content:center}
.nav-menu a{
  position:relative;display:inline-flex;align-items:center;height:68px;
  padding:0 14px;font-size:15px;color:var(--c-text-2);white-space:nowrap;
}
.nav-menu a:hover{color:var(--c-text)}
.nav-menu a.active{color:var(--c-primary);font-weight:600}
.nav-menu a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:18px;height:2px;border-radius:2px;background:var(--c-primary);
}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:10px;
  border:1px solid var(--c-line);background:transparent;color:var(--c-text-2);
  cursor:pointer;transition:border-color .18s,color .18s,background .18s;
}
.icon-btn:hover{border-color:var(--c-line-hover);color:var(--c-primary)}
.nav-toggle{display:none}

/* ---------- 按钮体系 ---------- */
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border:0;border-radius:var(--r-btn);
  background:var(--c-primary);color:#06120E;font-size:15px;font-weight:700;
  cursor:pointer;transition:filter .18s,box-shadow .18s,transform .18s,background .18s;
}
.btn-main:hover{filter:brightness(1.08);box-shadow:var(--sh-glow);color:#06120E}
.btn-main:active{background:var(--c-primary-deep);transform:translateY(1px)}
.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  border:1px solid var(--c-line);background:transparent;color:var(--c-primary);
  font-size:15px;font-weight:600;cursor:pointer;
  transition:border-color .18s,background .18s,color .18s;
}
.btn-line:hover{border-color:var(--c-primary);background:rgba(18,227,166,.08);color:var(--c-primary)}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;padding:0;border:0;background:transparent;
  color:var(--c-primary);font-size:14px;font-weight:600;cursor:pointer;
}
.btn-ghost svg{transition:transform .18s ease}
.btn-ghost:hover svg{transform:translateX(4px)}
.btn-main[disabled],.btn-line[disabled]{opacity:.45;pointer-events:none}

/* ---------- 移动端抽屉 ---------- */
.mobile-drawer{
  position:fixed;inset:0;z-index:300;background:var(--c-bg);
  display:flex;flex-direction:column;
  transform:translateX(100%);opacity:0;pointer-events:none;
  transition:transform .18s ease,opacity .18s ease;
}
.mobile-drawer.is-open{transform:translateX(0);opacity:1;pointer-events:auto}
.mob-head{display:flex;align-items:center;justify-content:space-between;min-height:68px;padding:0 20px;border-bottom:1px solid var(--c-line)}
.mob-links{flex:1 1 auto;overflow:auto;padding:8px 20px}
.mob-links a{
  display:flex;align-items:center;justify-content:space-between;
  height:56px;border-bottom:1px solid var(--c-line);font-size:16px;color:var(--c-text-2);
}
.mob-links a.active{color:var(--c-primary);font-weight:600}
.mob-foot{padding:16px 20px 28px;border-top:1px solid var(--c-line)}
.mob-foot .btn-main{width:100%}

/* ---------- 页头 Hero ---------- */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--c-line);padding:64px 0 56px}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(90deg,rgba(11,13,18,.97) 0%,rgba(11,13,18,.86) 52%,rgba(11,13,18,.66) 100%),url(/assets/images/backpic/back-1.png);
  background-size:cover;background-position:center right;
}
.page-hero::after{
  content:"";position:absolute;top:-160px;right:-140px;width:560px;height:560px;pointer-events:none;
  background:linear-gradient(120deg,transparent 38%,rgba(18,227,166,.20) 58%,rgba(124,92,255,.18) 76%,transparent 92%);
  transform:rotate(-12deg);
}
.page-hero .container{position:relative;z-index:2}
.breadcrumb-nav{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);margin-bottom:20px}
.breadcrumb-nav a:hover{color:var(--c-primary)}
.breadcrumb-nav .sep{color:var(--c-text-3);opacity:.7}
.breadcrumb-nav .cur{color:var(--c-text-2)}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;margin-bottom:18px;
  border-radius:var(--r-pill);background:rgba(18,227,166,.12);border:1px solid rgba(18,227,166,.35);
  color:var(--c-primary);font-size:13px;font-weight:600;
}
.page-hero h1{
  max-width:940px;font-size:clamp(28px,3.4vw,46px);font-weight:800;letter-spacing:-.02em;line-height:1.24;
}
.page-hero h1 em{font-style:normal;color:var(--c-primary)}
.hero-desc{max-width:760px;margin-top:20px;font-size:16px;color:var(--c-text-2);line-height:1.9}
.filter-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.chip{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;
  border-radius:var(--r-pill);border:1px solid var(--c-line);
  background:rgba(255,255,255,.02);color:var(--c-text-2);font-size:13px;
  cursor:pointer;transition:border-color .18s,color .18s,background .18s;
}
.chip:hover{border-color:var(--c-line-hover);color:var(--c-text)}
.chip.is-on{background:rgba(18,227,166,.12);border-color:rgba(18,227,166,.42);color:var(--c-primary);font-weight:600}

/* ---------- 数据条 ---------- */
.stat-bar{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--c-panel);border-bottom:1px solid var(--c-line);
}
.stat-cell{padding:26px 24px;border-right:1px solid var(--c-line)}
.stat-cell:last-child{border-right:0}
.stat-num{font-size:30px;line-height:1.1;color:var(--c-primary);font-variant-numeric:tabular-nums;font-weight:800;letter-spacing:-.02em}
.stat-label{margin-top:8px;font-size:13px;color:var(--c-text-2)}

/* ---------- 通用板块 ---------- */
.sec{padding:var(--sp-section) 0}
.sec-dark{background:#0E1118;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:48px}
.sec-title{font-size:clamp(22px,2.3vw,32px);font-weight:700;letter-spacing:-.015em}
.sec-title em{font-style:normal;color:var(--c-primary)}
.sec-sub{margin-top:12px;font-size:14px;color:var(--c-text-2);max-width:720px}

/* ---------- 步骤流 ---------- */
.step-list{display:flex;flex-direction:column;gap:64px}
.step-item{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.step-item.is-rev .step-media{order:2}
.step-item.is-rev .step-body{order:1}
.step-media{
  position:relative;overflow:hidden;border-radius:var(--r-card);
  border:1px solid var(--c-line);background:var(--c-panel);
  box-shadow:var(--sh-card);aspect-ratio:16/10;
}
.step-media img{width:100%;height:100%;object-fit:cover}
.step-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,13,18,0) 42%,rgba(11,13,18,.62) 100%)}
.step-badge{
  position:absolute;top:14px;left:14px;z-index:2;
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-pill);background:rgba(11,13,18,.78);
  border:1px solid rgba(18,227,166,.42);color:var(--c-primary);font-size:12px;font-weight:600;
}
.step-num{
  display:block;font-size:46px;line-height:1;font-weight:800;letter-spacing:-.04em;
  background:linear-gradient(120deg,var(--c-primary),var(--c-accent));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.step-title{margin-top:14px;font-size:clamp(20px,2vw,24px);font-weight:700}
.step-text{margin-top:14px;font-size:15px;line-height:1.9;color:var(--c-text-2)}
.step-points{display:flex;flex-direction:column;gap:12px;margin-top:22px}
.step-points li{position:relative;padding-left:22px;font-size:14px;color:var(--c-text-2);line-height:1.8}
.step-points li::before{
  content:"";position:absolute;left:2px;top:9px;width:8px;height:8px;border-radius:2px;
  background:rgba(18,227,166,.55);transform:rotate(45deg);
}
.step-points li strong{color:var(--c-text);font-weight:600}

/* ---------- 准备清单 ---------- */
.check-list{display:grid;grid-template-columns:repeat(2,1fr);gap:0 40px}
.check-list li{
  display:flex;gap:14px;padding:20px 0;border-bottom:1px dashed var(--c-line);
  font-size:15px;color:var(--c-text-2);line-height:1.8;
}
.check-list li svg{flex:0 0 20px;margin-top:6px;color:var(--c-primary)}
.check-list li strong{display:block;color:var(--c-text);font-weight:600;font-size:15px;margin-bottom:4px}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:960px}
.faq-item{
  background:var(--c-panel);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;transition:border-color .18s ease;
}
.faq-item.is-open{border-color:var(--c-line-hover)}
.faq-q{
  position:relative;display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;padding:20px 22px;border:0;background:transparent;text-align:left;
  font-size:16px;font-weight:600;color:var(--c-text);cursor:pointer;
}
.faq-q:hover{color:var(--c-primary)}
.pm{position:relative;flex:0 0 18px;width:18px;height:18px}
.pm::before,.pm::after{content:"";position:absolute;background:var(--c-primary);border-radius:2px;transition:transform .22s ease}
.pm::before{top:8px;left:0;width:18px;height:2px}
.pm::after{left:8px;top:0;width:2px;height:18px}
.faq-item.is-open .pm::after{transform:scaleY(0)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-a-inner{
  margin:0 22px 22px;padding-left:16px;border-left:3px solid transparent;
  font-size:15px;line-height:1.85;color:var(--c-text-2);transition:border-color .2s ease;
}
.faq-item.is-open .faq-a-inner{border-left-color:var(--c-primary)}

/* ---------- CTA 条 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);
  background:linear-gradient(120deg,rgba(18,227,166,.13),rgba(124,92,255,.11)),#0E1118;
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.10) 1px,transparent 1px);
  background-size:22px 22px;opacity:.5;
}
.cta-band .container{position:relative;z-index:2}
.cta-grid{display:grid;grid-template-columns:1.35fr .65fr;gap:48px;align-items:center;padding:64px 0}
.cta-title{font-size:clamp(22px,2.4vw,32px);font-weight:700}
.cta-title em{font-style:normal;color:var(--c-primary)}
.cta-text{margin-top:14px;font-size:15px;color:var(--c-text-2);max-width:640px}
.cta-points{display:flex;flex-wrap:wrap;gap:12px 28px;margin-top:22px}
.cta-points li{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--c-text-2)}
.cta-points svg{color:var(--c-primary)}
.cta-actions{display:flex;flex-direction:column;gap:12px}
.cta-actions .btn-main,.cta-actions .btn-line{width:100%}

/* ---------- 交叉链接 ---------- */
.cross-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.cross-card{
  position:relative;display:block;padding:28px 26px;border-radius:var(--r-card);
  border:1px solid var(--c-line);background:var(--c-panel);
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.cross-card:hover{transform:translateY(-2px);border-color:var(--c-line-hover);box-shadow:var(--sh-glow)}
.cross-kicker{font-size:12px;letter-spacing:.08em;color:var(--c-primary);font-weight:600}
.cross-title{margin-top:12px;font-size:19px;font-weight:700}
.cross-text{margin-top:10px;font-size:14px;color:var(--c-text-2);line-height:1.8}
.cross-more{display:inline-flex;align-items:center;gap:8px;margin-top:18px;font-size:14px;font-weight:600;color:var(--c-primary)}
.cross-card:hover .cross-more svg{transform:translateX(4px)}
.cross-more svg{transition:transform .18s ease}

/* ---------- 页脚 ---------- */
.site-footer{background:#0A0C11;border-top:1px solid var(--c-line);padding-top:64px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.foot-brand{display:inline-flex;align-items:center;gap:10px}
.foot-desc{margin-top:16px;font-size:14px;color:var(--c-text-2);line-height:1.85;max-width:320px}
.foot-title{font-size:14px;font-weight:700;color:var(--c-primary);margin-bottom:18px;letter-spacing:.02em}
.foot-list li{margin-bottom:12px}
.foot-list a{font-size:14px;color:var(--c-text-2)}
.foot-list a:hover{color:var(--c-primary)}
.foot-info{font-size:14px;color:var(--c-text-2);line-height:2}
.foot-qr{
  margin-top:18px;width:120px;height:120px;border-radius:var(--r-img);
  border:1px dashed var(--c-line);background:var(--c-panel);
  display:flex;align-items:center;justify-content:center;
  font-size:13px;color:var(--c-text-3);text-align:center;line-height:1.6;
}
.foot-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  border-top:1px solid var(--c-line);padding:22px 0;font-size:13px;color:var(--c-text-3);
}
.foot-links{display:flex;flex-wrap:wrap;gap:18px}
.foot-links a{color:var(--c-text-3)}
.foot-links a:hover{color:var(--c-primary)}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:80;
  display:flex;align-items:center;justify-content:center;
  width:46px;height:46px;border-radius:50%;
  border:1px solid rgba(18,227,166,.5);background:rgba(11,13,18,.9);color:var(--c-primary);
  cursor:pointer;opacity:0;pointer-events:none;
  transition:opacity .2s ease,transform .2s ease,border-color .2s ease;
}
.to-top.is-show{opacity:1;pointer-events:auto}
.to-top:hover{border-color:var(--c-primary);transform:translateY(-2px)}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .cta-grid{grid-template-columns:1fr;gap:32px;padding:56px 0}
  .cta-actions{flex-direction:row;flex-wrap:wrap}
  .cta-actions .btn-main,.cta-actions .btn-line{width:auto;min-width:190px}
}
@media (max-width:991.98px){
  :root{--sp-section:60px}
  .container{padding-left:20px;padding-right:20px}
  .nav-menu{display:none}
  .nav-toggle{display:inline-flex}
  .nav-actions .btn-main{display:none}
  .tb-mid{display:none}
  .topbar-inner{justify-content:space-between}
  .page-hero{padding:44px 0 40px}
  .step-item{grid-template-columns:1fr;gap:24px}
  .step-item.is-rev .step-media{order:1}
  .step-item.is-rev .step-body{order:2}
  .step-list{gap:52px}
  .stat-bar{grid-template-columns:1fr 1fr}
  .stat-cell{border-bottom:1px solid var(--c-line)}
  .stat-cell:nth-child(2n){border-right:0}
  .stat-cell:nth-child(3),.stat-cell:nth-child(4){border-bottom:0}
  .check-list{grid-template-columns:1fr;gap:0}
  .cross-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .sec-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:34px}
}
@media (max-width:575.98px){
  .stat-bar{grid-template-columns:1fr}
  .stat-cell{border-right:0;border-bottom:1px solid var(--c-line);padding:22px 20px}
  .stat-cell:last-child{border-bottom:0}
  .page-hero h1{font-size:28px}
  .hero-desc{font-size:15px}
  .step-num{font-size:38px}
  .cta-actions{flex-direction:column}
  .cta-actions .btn-main,.cta-actions .btn-line{width:100%}
  .foot-grid{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column;align-items:flex-start}
  .to-top{right:16px;bottom:16px}
}

/* roulang page: category2 */
:root{
  --c-bg:#0B0D12;
  --c-panel:#141821;
  --c-panel-2:#1B2030;
  --c-line:rgba(255,255,255,.08);
  --c-line-hover:rgba(18,227,166,.42);
  --c-primary:#12E3A6;
  --c-primary-deep:#0AAE80;
  --c-accent:#7C5CFF;
  --c-hot:#FF4D8D;
  --c-warn:#FFB020;
  --c-text:#F2F5F9;
  --c-text-2:#A6B0C3;
  --c-text-3:#6B7688;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-card:0 8px 28px rgba(0,0,0,.45);
  --sh-glow:0 0 0 1px rgba(18,227,166,.35),0 14px 40px rgba(18,227,166,.14);
  --sp-section:96px;
  --container:1320px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .15s ease;}
button,input,textarea,select{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.28;letter-spacing:-.01em;}
p{margin:0;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 28px;
}
.section{padding:var(--sp-section) 0;}
.section-alt{background:#0E1118;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:28px;
  margin-bottom:42px;
}
.section-title{font-size:32px;}
.section-desc{color:var(--c-text-2);font-size:15px;margin-top:12px;max-width:760px;}
.eyebrow{
  display:inline-block;
  font-size:13px;
  letter-spacing:.14em;
  color:var(--c-primary);
  margin-bottom:14px;
}
.num-figure{font-variant-numeric:tabular-nums;font-weight:700;}

/* ============ 顶部信息条 ============ */
.topbar{background:#0E1118;border-bottom:1px solid var(--c-line);font-size:13px;color:var(--c-text-2);}
.topbar-inner{display:flex;align-items:center;gap:24px;height:38px;}
.topbar-domain{color:var(--c-text-3);letter-spacing:.06em;flex-shrink:0;}
.topbar-msg{flex:1;min-width:0;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;}
.topbar-msg em{font-style:normal;color:var(--c-primary);}
.topbar-actions{display:flex;gap:20px;flex-shrink:0;}
.topbar-actions a{color:var(--c-text-2);}
.topbar-actions a:hover{color:var(--c-primary);}

/* ============ 主导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:70;
  background:rgba(11,13,18,.92);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
}
.site-header::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:1px;
  background:var(--c-line);
}
.nav-inner{display:flex;align-items:center;gap:36px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--c-primary),var(--c-accent));
  color:#06120E;font-weight:800;font-size:14px;letter-spacing:.02em;
}
.brand-text{font-size:18px;font-weight:800;letter-spacing:-.02em;color:var(--c-text);}
.brand-text span{color:var(--c-primary);}
.nav-menu{display:flex;align-items:center;gap:30px;margin-left:auto;}
.nav-menu a{position:relative;font-size:15px;color:var(--c-text-2);padding:8px 0;white-space:nowrap;}
.nav-menu a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;
  transition:transform .18s ease;
}
.nav-menu a:hover{color:var(--c-text);}
.nav-menu a.active{color:var(--c-primary);}
.nav-menu a.active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.icon-btn{
  width:44px;height:44px;display:none;place-items:center;
  background:transparent;border:1px solid var(--c-line);border-radius:10px;
  color:var(--c-text);cursor:pointer;transition:.15s ease;
}
.icon-btn:hover{border-color:var(--c-line-hover);color:var(--c-primary);}
.nav-toggle{display:none;}

/* ============ 按钮 ============ */
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 26px;border:0;border-radius:var(--r-btn);
  background:var(--c-primary);color:#06120E;font-weight:700;font-size:15px;
  cursor:pointer;white-space:nowrap;
  transition:filter .15s ease,box-shadow .15s ease,transform .1s ease,background .15s ease;
}
.btn-main:hover{filter:brightness(1.08);box-shadow:var(--sh-glow);color:#06120E;}
.btn-main:active{background:var(--c-primary-deep);transform:translateY(1px);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 26px;border:1px solid var(--c-line);border-radius:var(--r-btn);
  background:transparent;color:var(--c-primary);font-weight:600;font-size:15px;
  cursor:pointer;white-space:nowrap;transition:.15s ease;
}
.btn-ghost:hover{border-color:var(--c-primary);background:rgba(18,227,166,.08);color:var(--c-primary);}
.btn-text{color:var(--c-primary);font-weight:600;display:inline-flex;align-items:center;gap:6px;font-size:15px;}
.btn-text svg{transition:transform .15s ease;}
.btn-text:hover svg{transform:translateX(4px);}
.btn-lg{height:52px;padding:0 34px;font-size:16px;}

/* ============ 面包屑 ============ */
.breadcrumb-nav{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  font-size:13px;color:var(--c-text-3);margin-bottom:24px;position:relative;z-index:1;
}
.breadcrumb-nav a:hover{color:var(--c-primary);}
.breadcrumb-nav .sep{color:var(--c-text-3);}
.breadcrumb-nav .current{color:var(--c-text-2);}

/* ============ 页头 ============ */
.page-hero{
  position:relative;
  padding:76px 0 68px;
  border-bottom:1px solid var(--c-line);
  overflow:hidden;
  background-image:
    linear-gradient(180deg,rgba(11,13,18,.90),rgba(11,13,18,.985)),
    url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
}
.page-hero::before{
  content:"";
  position:absolute;top:-40%;left:-12%;width:68%;height:180%;
  background:linear-gradient(120deg,rgba(18,227,166,.15),rgba(124,92,255,.11) 55%,rgba(11,13,18,0) 78%);
  transform:rotate(-14deg);
  pointer-events:none;
}
.hero-layout{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1.55fr 1fr;gap:52px;align-items:start;
}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 13px;
  border-radius:var(--r-pill);font-size:13px;line-height:1;
}
.tag-primary{background:rgba(18,227,166,.12);color:var(--c-primary);border:1px solid rgba(18,227,166,.32);}
.hero-copy h1{
  font-size:46px;font-weight:800;letter-spacing:-.02em;
  margin:18px 0 20px;
}
.hero-sub{font-size:17px;color:var(--c-text-2);max-width:640px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  height:30px;padding:0 15px;border-radius:var(--r-pill);
  border:1px solid rgba(18,227,166,.35);
  background:rgba(18,227,166,.07);
  color:var(--c-primary);font-size:13px;
}
.pill i{width:6px;height:6px;border-radius:50%;background:var(--c-primary);display:block;}
.hero-side{
  background:var(--c-panel);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:26px;
  box-shadow:var(--sh-card);
}
.filter-label{font-size:13px;color:var(--c-text-3);margin-bottom:14px;letter-spacing:.06em;}
.filter-pills{display:flex;flex-wrap:wrap;gap:10px;}
.filter-pill{
  padding:8px 16px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);
  background:var(--c-panel-2);
  color:var(--c-text-2);font-size:14px;cursor:pointer;
  transition:.15s ease;
}
.filter-pill:hover{border-color:var(--c-line-hover);color:var(--c-text);}
.filter-pill.is-on{background:rgba(18,227,166,.12);border-color:var(--c-primary);color:var(--c-primary);}
.hero-mini-stats{
  display:grid;grid-template-columns:1fr 1fr;gap:18px;
  margin-top:24px;padding-top:24px;border-top:1px solid var(--c-line);
}
.mini-stat b{display:block;font-size:26px;color:var(--c-text);font-variant-numeric:tabular-nums;font-weight:700;line-height:1.2;}
.mini-stat span{font-size:13px;color:var(--c-text-3);}

/* ============ Bento 网格 ============ */
.bento{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.bento-card{
  position:relative;
  display:flex;flex-direction:column;justify-content:flex-end;
  background:var(--c-panel);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:26px;
  min-height:206px;
  overflow:hidden;
  transition:transform .15s ease,border-color .15s ease,box-shadow .15s ease;
}
.bento-card:hover{transform:translateY(-2px);border-color:var(--c-line-hover);box-shadow:var(--sh-glow);}
.bento-card.span-2{grid-column:span 2;min-height:330px;}
.bento-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.55;}
.bento-feature::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,13,18,.20) 0%,rgba(11,13,18,.72) 55%,rgba(11,13,18,.95) 100%);
}
.bento-body{position:relative;z-index:1;max-width:560px;}
.badge-hot{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;
  border-radius:var(--r-pill);font-size:13px;line-height:1;
  background:rgba(255,77,141,.16);color:var(--c-hot);
  border:1px solid rgba(255,77,141,.34);
  margin-bottom:16px;
}
.bento-card h3{font-size:21px;font-weight:700;margin-bottom:12px;}
.bento-card p{color:var(--c-text-2);font-size:15px;line-height:1.8;}
.bento-index{
  font-size:13px;font-weight:700;color:var(--c-primary);
  letter-spacing:.16em;margin-bottom:auto;font-variant-numeric:tabular-nums;
}
.bento-arrow{
  margin-top:22px;color:var(--c-primary);font-size:18px;line-height:1;
  transition:transform .15s ease;
}
.bento-card:hover .bento-arrow{transform:translateX(4px);}

/* ============ 场景条 ============ */
.scene-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:20px;}
.scene-grid.reverse{grid-template-columns:1fr 1.35fr;margin-top:20px;}
.scene-bar{
  display:flex;align-items:center;gap:26px;
  background:var(--c-panel);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:26px;
  transition:transform .15s ease,border-color .15s ease,box-shadow .15s ease;
}
.scene-bar:hover{transform:translateY(-2px);border-color:var(--c-line-hover);box-shadow:var(--sh-glow);}
.scene-thumb{
  width:158px;height:118px;flex-shrink:0;
  border-radius:var(--r-img);object-fit:cover;
  border:1px solid var(--c-line);
}
.scene-body h3{font-size:19px;font-weight:600;margin-bottom:10px;}
.scene-body p{color:var(--c-text-2);font-size:15px;line-height:1.8;}
.scene-tagline{
  display:inline-block;font-size:13px;color:var(--c-primary);
  margin-bottom:10px;letter-spacing:.08em;
}

/* ============ 流程 ============ */
.flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.flow-step{
  position:relative;
  background:var(--c-panel);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:28px 24px;
  transition:border-color .15s ease,transform .15s ease,box-shadow .15s ease;
}
.flow-step:hover{border-color:var(--c-line-hover);transform:translateY(-2px);box-shadow:var(--sh-glow);}
.flow-num{
  font-size:38px;font-weight:800;color:var(--c-primary);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;line-height:1;
  margin-bottom:16px;
}
.flow-step h3{font-size:18px;font-weight:600;margin-bottom:10px;}
.flow-step p{color:var(--c-text-2);font-size:15px;line-height:1.8;}

/* ============ 数据条 ============ */
.stats-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  border-top:1px solid var(--c-line);
  border-bottom:1px solid var(--c-line);
  background:#0E1118;
}
.stat-item{padding:36px 26px;border-right:1px solid var(--c-line);}
.stat-item:last-child{border-right:0;}
.stat-item b{
  display:block;font-size:34px;font-weight:700;color:var(--c-primary);
  font-variant-numeric:tabular-nums;line-height:1.15;letter-spacing:-.02em;
}
.stat-item span{display:block;margin-top:8px;font-size:13px;color:var(--c-text-2);}

/* ============ FAQ ============ */
.faq-list{max-width:920px;margin:0 auto;border-top:1px solid var(--c-line);}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-q{
  position:relative;
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:22px;
  padding:24px 18px 24px 22px;
  background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:17px;font-weight:600;color:var(--c-text);
  transition:color .15s ease;
}
.faq-q::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;
  background:var(--c-primary);border-radius:2px;opacity:0;transition:opacity .15s ease;
}
.faq-item.open .faq-q{color:var(--c-primary);}
.faq-item.open .faq-q::before{opacity:1;}
.faq-sign{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--c-line);display:grid;place-items:center;
  color:var(--c-primary);font-size:15px;line-height:1;
  transition:transform .2s ease,border-color .15s ease,background .15s ease;
}
.faq-item.open .faq-sign{transform:rotate(180deg);border-color:var(--c-primary);background:rgba(18,227,166,.10);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;}
.faq-item.open .faq-a{max-height:400px;}
.faq-a p{padding:0 60px 26px 22px;color:var(--c-text-2);font-size:15px;line-height:1.9;}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;
  border:1px solid var(--c-line);
  border-radius:22px;
  padding:52px;
  display:grid;grid-template-columns:1.45fr 1fr;gap:44px;align-items:center;
  background:
    linear-gradient(115deg,rgba(18,227,166,.16),rgba(124,92,255,.14) 55%,rgba(11,13,18,0) 92%),
    var(--c-panel);
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.07) 1px,transparent 1px);
  background-size:18px 18px;
}
.cta-copy{position:relative;z-index:1;}
.cta-copy h2{font-size:32px;margin-bottom:14px;}
.cta-copy p{color:var(--c-text-2);font-size:15px;margin-bottom:22px;}
.cta-points{display:flex;flex-wrap:wrap;gap:12px 26px;}
.cta-points li{display:flex;align-items:center;gap:9px;font-size:15px;color:var(--c-text-2);}
.cta-points li svg{flex-shrink:0;color:var(--c-primary);}
.cta-actions{position:relative;z-index:1;display:flex;flex-direction:column;gap:14px;}
.cta-actions .btn-main,.cta-actions .btn-ghost{width:100%;}

/* ============ 相关分类 ============ */
.cross-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.cross-card{
  display:flex;flex-direction:column;justify-content:space-between;
  min-height:180px;padding:26px;
  background:var(--c-panel-2);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  transition:transform .15s ease,border-color .15s ease,box-shadow .15s ease;
}
.cross-card:hover{transform:translateY(-2px);border-color:var(--c-line-hover);box-shadow:var(--sh-glow);}
.cross-card h3{font-size:19px;font-weight:600;margin-bottom:12px;}
.cross-card p{color:var(--c-text-2);font-size:14px;line-height:1.8;margin-bottom:20px;}
.cross-card .btn-text{font-size:14px;}

/* ============ 页脚 ============ */
.site-footer{background:#0A0C11;border-top:1px solid var(--c-line);padding:72px 0 0;}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:44px;}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.foot-desc{color:var(--c-text-2);font-size:14px;line-height:1.85;max-width:340px;}
.foot-title{font-size:14px;font-weight:600;color:var(--c-primary);margin-bottom:18px;letter-spacing:.06em;}
.foot-list li{margin-bottom:12px;}
.foot-list a{color:var(--c-text-2);font-size:14px;}
.foot-list a:hover{color:var(--c-primary);}
.foot-info{color:var(--c-text-2);font-size:14px;line-height:2;}
.foot-qr{
  margin-top:18px;width:120px;height:120px;border-radius:var(--r-img);
  border:1px dashed rgba(255,255,255,.16);
  display:grid;place-items:center;text-align:center;
  color:var(--c-text-3);font-size:13px;line-height:1.6;
  background:var(--c-panel);
}
.foot-bottom{
  margin-top:56px;padding:24px 0;
  border-top:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  color:var(--c-text-3);font-size:13px;
}
.foot-links{display:flex;gap:20px;flex-wrap:wrap;}
.foot-links a{color:var(--c-text-3);}
.foot-links a:hover{color:var(--c-primary);}

/* ============ 返回顶部 ============ */
.back-top{
  position:fixed;right:24px;bottom:28px;z-index:80;
  width:48px;height:48px;border-radius:50%;
  border:1px solid var(--c-line-hover);
  background:rgba(20,24,33,.92);
  color:var(--c-primary);
  display:grid;place-items:center;cursor:pointer;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:.22s ease;
}
.back-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.back-top:hover{box-shadow:var(--sh-glow);}

/* ============ 响应式 ============ */
@media (max-width:1400px){
  .container{max-width:1200px;}
  .hero-copy h1{font-size:42px;}
}
@media (max-width:1200px){
  .container{max-width:1040px;}
  .nav-menu{gap:22px;}
  .hero-layout{gap:36px;}
  .hero-copy h1{font-size:38px;}
  .section-title{font-size:29px;}
}
@media (max-width:991px){
  :root{--sp-section:72px;}
  .nav-toggle{display:grid;}
  .nav-menu{
    position:fixed;top:0;left:0;right:0;bottom:0;
    flex-direction:column;align-items:stretch;
    gap:0;
    padding:96px 24px 120px;
    background:var(--c-bg);
    transform:translateY(-100%);opacity:0;pointer-events:none;
    transition:transform .2s ease,opacity .2s ease;
    z-index:60;
    margin-left:0;
    overflow-y:auto;
  }
  .nav-menu.open{transform:translateY(0);opacity:1;pointer-events:auto;}
  .nav-menu a{font-size:18px;padding:18px 0;border-bottom:1px solid var(--c-line);}
  .nav-menu a::after{display:none;}
  .nav-actions{margin-left:auto;}
  .hero-layout{grid-template-columns:1fr;gap:32px;}
  .hero-copy h1{font-size:34px;}
  .bento{grid-template-columns:repeat(2,minmax(0,1fr));}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr));}
  .scene-grid,.scene-grid.reverse{grid-template-columns:1fr;}
  .scene-grid.reverse{margin-top:20px;}
  .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stat-item:nth-child(2){border-right:0;}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid var(--c-line);}
  .cta-band{grid-template-columns:1fr;padding:38px;gap:28px;}
  .cross-grid{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:768px){
  :root{--sp-section:60px;}
  .container{padding:0 20px;}
  .topbar-domain{display:none;}
  .topbar-actions{gap:14px;}
  .hero-copy h1{font-size:30px;letter-spacing:-.01em;}
  .hero-sub{font-size:16px;}
  .section-title{font-size:24px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:30px;}
  .bento{grid-template-columns:1fr;}
  .bento-card.span-2{grid-column:span 1;min-height:300px;}
  .flow{grid-template-columns:1fr;}
  .scene-bar{flex-direction:column;align-items:flex-start;gap:18px;}
  .scene-thumb{width:100%;height:180px;}
  .stats-grid{grid-template-columns:1fr 1fr;}
  .faq-q{font-size:16px;padding:20px 12px 20px 18px;}
  .faq-a p{padding:0 24px 22px 18px;}
  .cta-band{padding:28px;}
  .cta-copy h2{font-size:24px;}
  .foot-grid{grid-template-columns:1fr;gap:32px;}
  .foot-bottom{flex-direction:column;align-items:flex-start;}
  .back-top{right:16px;bottom:18px;width:44px;height:44px;}
}
@media (max-width:480px){
  .hero-copy h1{font-size:26px;}
  .hero-mini-stats{grid-template-columns:1fr 1fr;}
  .mini-stat b{font-size:22px;}
  .stats-grid{grid-template-columns:1fr;}
  .stat-item{border-right:0;border-bottom:1px solid var(--c-line);}
  .stat-item:last-child{border-bottom:0;}
  .btn-main,.btn-ghost{width:100%;}
  .nav-actions .btn-main{width:auto;}
}

/* roulang page: category3 */
:root{
  --c-bg:#0B0D12;
  --c-panel:#141821;
  --c-panel-2:#1B2030;
  --c-line:rgba(255,255,255,.08);
  --c-line-hover:rgba(18,227,166,.42);
  --c-primary:#12E3A6;
  --c-primary-deep:#0AAE80;
  --c-accent:#7C5CFF;
  --c-hot:#FF4D8D;
  --c-warn:#FFB020;
  --c-text:#F2F5F9;
  --c-text-2:#A6B0C3;
  --c-text-3:#6B7688;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-card:0 8px 28px rgba(0,0,0,.45);
  --sh-glow:0 0 0 1px rgba(18,227,166,.35),0 14px 40px rgba(18,227,166,.14);
  --sp-section:96px;
  --container:1320px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",Inter,system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none;transition:color .18s ease}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.02em;line-height:1.25}
p{margin:0}
button,input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:var(--container);margin:0 auto;padding-left:20px;padding-right:20px}
@media (min-width:992px){.container{padding-left:28px;padding-right:28px}}

/* ---------- 顶部信息条 ---------- */
.topbar{background:#101420;border-bottom:1px solid var(--c-line);font-size:13px;color:var(--c-text-2)}
.topbar-inner{display:flex;align-items:center;gap:18px;min-height:38px}
.site-domain{color:var(--c-text-3);letter-spacing:.02em;flex-shrink:0}
.topbar-tip{flex:1;min-width:0;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;color:var(--c-text-2)}
.topbar-tip b{color:var(--c-primary);font-weight:600}
.topbar-actions{margin-left:auto;display:flex;align-items:center;gap:18px;flex-shrink:0}
.topbar-actions a:hover{color:var(--c-primary)}
.topbar-actions a + a{position:relative}
.topbar-actions a + a::before{content:"";position:absolute;left:-9px;top:50%;transform:translateY(-50%);width:1px;height:12px;background:var(--c-line)}
@media (max-width:767px){.topbar-tip{display:none}.topbar-inner{justify-content:space-between}}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(11,13,18,.92);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--c-line);
}
.nav-inner{display:flex;align-items:center;gap:22px;min-height:68px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--c-primary),var(--c-accent));
  color:#062018;font-weight:800;font-size:15px;letter-spacing:-.04em;
}
.brand-text{font-weight:800;font-size:19px;letter-spacing:-.02em}
.brand-text span{color:var(--c-primary)}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:6px}
.nav-menu a{position:relative;padding:10px 14px;font-size:15px;color:var(--c-text-2);border-radius:8px;transition:color .18s ease,background .18s ease}
.nav-menu a:hover{color:var(--c-text);background:rgba(255,255,255,.04)}
.nav-menu a.active{color:var(--c-primary)}
.nav-menu a.active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--c-primary)}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px;flex-shrink:0}
.icon-btn{
  width:42px;height:42px;display:none;place-items:center;border-radius:10px;
  background:transparent;border:1px solid var(--c-line);color:var(--c-text);
  cursor:pointer;transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.icon-btn:hover{border-color:var(--c-line-hover);color:var(--c-primary);background:rgba(18,227,166,.06)}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border:0;border-radius:var(--r-btn);
  background:var(--c-primary);color:#062018;font-weight:700;font-size:15px;
  cursor:pointer;transition:filter .18s ease,box-shadow .18s ease,transform .18s ease,background .18s ease;
}
.btn-main:hover{filter:brightness(1.08);box-shadow:var(--sh-glow);color:#062018}
.btn-main:active{background:var(--c-primary-deep);transform:translateY(1px)}
.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  background:transparent;border:1px solid var(--c-line);color:var(--c-primary);
  font-weight:600;font-size:15px;cursor:pointer;
  transition:border-color .18s ease,background .18s ease,color .18s ease;
}
.btn-line:hover{border-color:var(--c-primary);background:rgba(18,227,166,.08)}
.btn-ghost{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-weight:600;font-size:15px}
.btn-ghost i{transition:transform .18s ease;font-style:normal}
.btn-ghost:hover i{transform:translateX(4px)}
.btn-main[disabled],.btn-line[disabled]{opacity:.45;pointer-events:none}

@media (max-width:991px){
  .icon-btn.nav-toggle{display:grid;position:relative;z-index:1060}
  .nav-menu{
    position:fixed;inset:0;z-index:1050;margin:0;
    flex-direction:column;align-items:stretch;gap:0;
    padding:96px 24px 32px;
    background:var(--c-bg);border-right:1px solid var(--c-line);
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity .18s ease,transform .18s ease,visibility .18s ease;
  }
  .nav-menu.open{opacity:1;visibility:visible;transform:none}
  .nav-menu a{padding:16px 4px;font-size:17px;border-bottom:1px solid var(--c-line);border-radius:0}
  .nav-menu a.active::after{display:none}
  .nav-menu a.active{color:var(--c-primary)}
}

/* ---------- 面包屑 ---------- */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);margin-bottom:26px}
.crumb a{color:var(--c-text-2)}
.crumb a:hover{color:var(--c-primary)}
.crumb .sep{color:var(--c-text-3)}

/* ---------- Hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  padding:76px 0 64px;
  background:
    radial-gradient(900px 420px at 88% -10%,rgba(124,92,255,.18),transparent 70%),
    linear-gradient(180deg,rgba(11,13,18,.62),rgba(11,13,18,.94)),
    url(/assets/images/backpic/back-2.webp) center/cover no-repeat;
  border-bottom:1px solid var(--c-line);
}
.cat-hero::before{
  content:"";position:absolute;top:-160px;right:-120px;width:520px;height:520px;
  background:linear-gradient(135deg,rgba(18,227,166,.16),rgba(124,92,255,.04));
  transform:rotate(24deg);filter:blur(8px);pointer-events:none;
}
.cat-hero .container{position:relative;z-index:2}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  height:28px;padding:0 14px;border-radius:var(--r-pill);
  background:rgba(18,227,166,.12);color:var(--c-primary);
  font-size:13px;font-weight:600;border:1px solid rgba(18,227,166,.28);margin-bottom:20px;
}
.hero-tag .dot{width:6px;height:6px;border-radius:50%;background:var(--c-primary);box-shadow:0 0 0 3px rgba(18,227,166,.18)}
.cat-hero h1{font-size:clamp(28px,3.6vw,46px);font-weight:800;letter-spacing:-.02em;margin-bottom:18px}
.cat-hero h1 em{font-style:normal;color:var(--c-primary)}
.hero-sub{color:var(--c-text-2);font-size:16px;max-width:640px;margin-bottom:28px}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px}
.badge-pill{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;
  border-radius:var(--r-pill);border:1px solid rgba(18,227,166,.3);
  color:var(--c-primary);font-size:13px;background:rgba(18,227,166,.06);
}
.badge-pill.muted{border-color:var(--c-line);color:var(--c-text-2);background:rgba(255,255,255,.03)}

.hero-visual{position:relative;border-radius:var(--r-card);border:1px solid var(--c-line);overflow:hidden;box-shadow:var(--sh-card)}
.hero-visual img{width:100%;height:340px;object-fit:cover;border-radius:0}
.hero-visual::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,13,18,.05),rgba(11,13,18,.72))}
.hero-visual-card{
  position:absolute;left:18px;right:18px;bottom:18px;z-index:3;
  display:flex;align-items:center;gap:12px;
  padding:14px 16px;border-radius:14px;
  background:rgba(20,24,33,.86);border:1px solid var(--c-line);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
}
.hero-visual-card .dot{width:8px;height:8px;border-radius:50%;background:var(--c-primary);box-shadow:0 0 0 4px rgba(18,227,166,.16);flex-shrink:0}
.hero-visual-card strong{display:block;font-size:14px}
.hero-visual-card span{display:block;font-size:12px;color:var(--c-text-3)}
@media (max-width:767px){
  .cat-hero{padding:56px 0 44px}
  .hero-visual img{height:220px}
  .hero-btns .btn-main,.hero-btns .btn-line{width:100%}
}

/* ---------- 筛选条 ---------- */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px;padding-top:26px;border-top:1px solid var(--c-line)}
.chip{
  height:34px;padding:0 16px;border-radius:var(--r-pill);
  background:transparent;border:1px solid var(--c-line);color:var(--c-text-2);
  font-size:13px;cursor:pointer;transition:all .18s ease;
}
.chip:hover{border-color:var(--c-line-hover);color:var(--c-text)}
.chip.active{background:rgba(18,227,166,.12);border-color:rgba(18,227,166,.45);color:var(--c-primary);font-weight:600}

/* ---------- 通用区块 ---------- */
.section{padding:var(--sp-section) 0}
.section.tight{padding:72px 0}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:38px}
.sec-head h2{font-size:clamp(22px,2.6vw,32px)}
.sec-head h2 span{color:var(--c-primary)}
.eyebrow{display:block;font-size:13px;font-weight:600;letter-spacing:.16em;color:var(--c-primary);margin-bottom:12px}
.sec-desc{color:var(--c-text-2);font-size:15px;margin-top:12px;max-width:720px}
@media (max-width:767px){:root{--sp-section:60px}}

/* ---------- 数据条 ---------- */
.stat-strip{background:#0E1119;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat-cell{padding:30px 24px;border-left:1px solid var(--c-line)}
.stat-cell:first-child{border-left:0}
.stat-num{font-size:30px;font-weight:800;color:var(--c-primary);letter-spacing:-.02em;line-height:1.2}
.stat-num small{font-size:15px;font-weight:600;margin-left:4px;color:var(--c-text-2)}
.stat-label{font-size:13px;color:var(--c-text-2);margin-top:6px}
@media (max-width:991px){
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .stat-cell{padding:22px 18px;border-top:1px solid var(--c-line)}
  .stat-cell:nth-child(odd){border-left:0}
  .stat-cell:nth-child(1),.stat-cell:nth-child(2){border-top:0}
}

/* ---------- 保障条 ---------- */
.guard-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;background:var(--c-panel)}
.guard-item{padding:30px 26px;border-right:1px solid var(--c-line);border-bottom:1px solid var(--c-line);transition:background .2s ease}
.guard-item:nth-child(3n){border-right:0}
.guard-item:nth-child(n+4){border-bottom:0}
.guard-item:hover{background:var(--c-panel-2)}
.guard-ico{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:rgba(18,227,166,.1);border:1px solid rgba(18,227,166,.25);color:var(--c-primary);margin-bottom:16px;
}
.guard-item h3{font-size:18px;font-weight:600;margin-bottom:10px}
.guard-item p{font-size:14px;color:var(--c-text-2);line-height:1.7}
@media (max-width:991px){
  .guard-grid{grid-template-columns:repeat(2,1fr)}
  .guard-item{border-right:1px solid var(--c-line)!important}
  .guard-item:nth-child(2n){border-right:0!important}
  .guard-item:nth-child(n+4){border-bottom:1px solid var(--c-line)}
  .guard-item:last-child,.guard-item:nth-last-child(2){border-bottom:0}
}
@media (max-width:575px){
  .guard-grid{grid-template-columns:1fr}
  .guard-item{border-right:0!important;border-bottom:1px solid var(--c-line)!important}
  .guard-item:last-child{border-bottom:0!important}
}

/* ---------- 防护面板卡 ---------- */
.panel-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.panel-card{
  background:var(--c-panel);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--sh-card);
  transition:transform .15s ease,border-color .15s ease,box-shadow .15s ease;
}
.panel-card:hover{transform:translateY(-2px);border-color:var(--c-line-hover);box-shadow:var(--sh-card),var(--sh-glow)}
.panel-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.panel-tag{font-size:12px;font-weight:600;color:var(--c-accent);background:rgba(124,92,255,.14);border-radius:var(--r-pill);padding:3px 10px}
.panel-metric{font-size:22px;font-weight:800;color:var(--c-text)}
.panel-card h3{font-size:18px;font-weight:600;margin-bottom:8px}
.panel-card > p{font-size:14px;color:var(--c-text-2);margin-bottom:16px}
.panel-list li{position:relative;padding-left:18px;font-size:13.5px;color:var(--c-text-2);line-height:1.8}
.panel-list li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--c-primary)}
@media (max-width:1199px){.panel-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:575px){.panel-grid{grid-template-columns:1fr}}

/* ---------- 处置流程 ---------- */
.flow-wrap{background:#0E1119;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.flow-list{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.flow-step{
  position:relative;background:var(--c-panel);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:26px 22px;transition:border-color .18s ease,transform .15s ease;
}
.flow-step:hover{border-color:var(--c-line-hover);transform:translateY(-2px)}
.flow-num{font-size:30px;font-weight:800;color:var(--c-primary);letter-spacing:-.03em;line-height:1;margin-bottom:14px}
.flow-step h3{font-size:17px;font-weight:600;margin-bottom:8px}
.flow-step p{font-size:13.5px;color:var(--c-text-2)}
.flow-step::after{
  content:"";position:absolute;top:42px;right:-14px;width:10px;height:2px;background:rgba(18,227,166,.4);
}
.flow-step:last-child::after{display:none}
@media (max-width:1199px){.flow-list{grid-template-columns:repeat(2,1fr)}.flow-step::after{display:none}}
@media (max-width:575px){.flow-list{grid-template-columns:1fr}}

/* ---------- FAQ ---------- */
.faq-col{display:grid;gap:14px;align-content:start}
.faq-item{
  position:relative;background:var(--c-panel);border:1px solid var(--c-line);
  border-radius:var(--r-card);overflow:hidden;transition:border-color .18s ease;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--c-primary);
  transform:scaleY(0);transform-origin:top;transition:transform .24s ease;
}
.faq-item.open{border-color:var(--c-line-hover)}
.faq-item.open::before{transform:scaleY(1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;background:transparent;border:0;text-align:left;
  font-size:16px;font-weight:600;cursor:pointer;line-height:1.5;
}
.faq-q:hover{color:var(--c-primary)}
.faq-ico{
  flex-shrink:0;width:24px;height:24px;border-radius:8px;display:grid;place-items:center;
  border:1px solid var(--c-line);color:var(--c-primary);font-size:16px;line-height:1;
  transition:transform .24s ease,background .18s ease,border-color .18s ease;
}
.faq-item.open .faq-ico{transform:rotate(45deg);background:rgba(18,227,166,.12);border-color:rgba(18,227,166,.4)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a-inner{padding:0 22px 22px;color:var(--c-text-2);font-size:14.5px;line-height:1.85}

/* ---------- 咨询表单 ---------- */
.consult-wrap{
  background:
    radial-gradient(600px 300px at 10% 0%,rgba(18,227,166,.1),transparent 70%),
    var(--c-panel);
  border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:40px;box-shadow:var(--sh-card);
}
.consult-wrap h2{font-size:clamp(22px,2.4vw,28px);margin-bottom:14px}
.consult-wrap .lead{color:var(--c-text-2);font-size:14.5px;margin-bottom:22px}
.consult-points li{position:relative;padding-left:24px;font-size:14px;color:var(--c-text-2);margin-bottom:10px}
.consult-points li::before{content:"✓";position:absolute;left:0;top:0;color:var(--c-primary);font-weight:700}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;color:var(--c-text-2);margin-bottom:8px;font-weight:500}
.req{color:var(--c-primary);margin-left:2px}
.field input,.field textarea,.field select{
  width:100%;background:#0F131B;border:1px solid var(--c-line);border-radius:10px;
  padding:12px 14px;color:var(--c-text);font-size:15px;
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.field textarea{min-height:120px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:var(--c-text-3)}
.field input:hover,.field textarea:hover{border-color:rgba(255,255,255,.16)}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(18,227,166,.14);background:#101521;
}
.field select option{background:#141821;color:var(--c-text)}
.form-tip{margin-top:16px;font-size:13.5px;color:var(--c-text-3)}
.form-msg{
  display:none;margin-top:16px;padding:12px 16px;border-radius:10px;
  background:rgba(18,227,166,.1);border:1px solid rgba(18,227,166,.35);
  color:var(--c-primary);font-size:14px;
}
.form-msg.show{display:block}
@media (max-width:767px){.consult-wrap{padding:26px 20px}}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-card);
  border:1px solid var(--c-line);
  background:linear-gradient(115deg,rgba(18,227,166,.14),rgba(124,92,255,.12) 55%,rgba(11,13,18,.2));
  padding:48px 44px;
}
.cta-band::after{
  content:"";position:absolute;inset:0;opacity:.07;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.8) 1px,transparent 1px);
  background-size:18px 18px;
}
.cta-band > *{position:relative;z-index:2}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:14px}
.cta-band p{color:var(--c-text-2);font-size:15px;max-width:560px;margin-bottom:18px}
.cta-points li{position:relative;padding-left:24px;font-size:14.5px;color:var(--c-text-2);margin-bottom:8px}
.cta-points li::before{content:"✓";position:absolute;left:0;top:0;color:var(--c-primary);font-weight:700}
.cta-btns{display:grid;gap:14px}
@media (max-width:991px){.cta-band{padding:32px 22px}.cta-btns{margin-top:26px}.cta-btns .btn-main,.cta-btns .btn-line{width:100%}}

/* ---------- 相关分类 ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.rel-card{
  position:relative;display:flex;flex-direction:column;justify-content:space-between;gap:22px;
  background:var(--c-panel);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--sh-card);
  transition:transform .15s ease,border-color .15s ease,box-shadow .15s ease;
}
.rel-card:hover{transform:translateY(-2px);border-color:var(--c-line-hover);box-shadow:var(--sh-card),var(--sh-glow)}
.rel-card span.state{font-size:12px;color:var(--c-text-3);border:1px solid var(--c-line);border-radius:var(--r-pill);padding:3px 10px;align-self:flex-start}
.rel-card h3{font-size:18px;font-weight:600;margin-bottom:8px}
.rel-card p{font-size:14px;color:var(--c-text-2)}
@media (max-width:991px){.rel-grid{grid-template-columns:1fr}}

/* ---------- 页脚 ---------- */
.site-footer{background:#090B10;border-top:1px solid var(--c-line);padding:66px 0 0;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:46px}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.foot-desc{font-size:14px;color:var(--c-text-2);max-width:340px;line-height:1.8}
.foot-title{font-size:14px;font-weight:600;color:var(--c-primary);margin-bottom:18px;letter-spacing:.04em}
.foot-list li{margin-bottom:12px}
.foot-list a{font-size:14px;color:var(--c-text-2)}
.foot-list a:hover{color:var(--c-primary)}
.foot-info{font-size:14px;color:var(--c-text-2);line-height:2}
.foot-qr{
  margin-top:18px;width:108px;height:108px;border-radius:12px;
  border:1px dashed var(--c-line);display:grid;place-items:center;
  text-align:center;font-size:12.5px;color:var(--c-text-3);line-height:1.6;
  background:linear-gradient(135deg,rgba(18,227,166,.08),rgba(124,92,255,.06));
}
.foot-bottom{
  border-top:1px solid var(--c-line);padding:22px 0;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  font-size:13px;color:var(--c-text-3);
}
.foot-links{display:flex;flex-wrap:wrap;gap:18px}
.foot-links a{color:var(--c-text-3)}
.foot-links a:hover{color:var(--c-primary)}
@media (max-width:991px){.foot-grid{grid-template-columns:repeat(2,1fr);gap:32px}}
@media (max-width:575px){.foot-grid{grid-template-columns:1fr}.site-footer{padding-top:48px}}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:22px;bottom:26px;z-index:1200;
  width:46px;height:46px;border-radius:50%;display:grid;place-items:center;
  background:rgba(20,24,33,.9);border:1px solid var(--c-line-hover);color:var(--c-primary);
  cursor:pointer;opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease,background .18s ease;
}
.to-top.show{opacity:1;visibility:visible;transform:none}
.to-top:hover{background:rgba(18,227,166,.14)}
@media (max-width:575px){.to-top{right:14px;bottom:16px;width:42px;height:42px}}