/* roulang page: index */
:root{
  --bg:#070B0C;
  --surface:#121A1C;
  --surface-2:#1A2426;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --primary:#16E0B8;
  --accent:#FF8A3D;
  --violet:#6A5CFF;
  --text:#F2F7F6;
  --text-2:#A8B7B5;
  --text-3:#6E8180;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:'HarmonyOS Sans SC','MiSans','Source Han Sans SC','PingFang SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:800;letter-spacing:-.01em}
p{margin:0}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

.container{width:min(1200px,100% - 48px);margin-inline:auto}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:rgba(7,11,12,.55);
  backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background .35s ease,border-color .35s ease,box-shadow .35s ease;
}
.site-header.is-scrolled{
  background:rgba(9,14,15,.94);
  border-bottom-color:var(--line);
  box-shadow:0 14px 34px -26px rgba(0,0,0,.95);
}
.nav-wrap{display:flex;align-items:center;gap:24px;height:64px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),#0d9c81);
  color:#04211b;font-weight:800;font-size:14px;letter-spacing:-.5px;
  clip-path:polygon(9px 0,100% 0,100% calc(100% - 9px),calc(100% - 9px) 100%,0 100%,0 9px);
}
.brand-text{font-size:16px;font-weight:800;letter-spacing:.2px;white-space:nowrap}
.brand-text em{font-style:normal;color:var(--primary)}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  padding:8px 14px;border-radius:999px;font-size:14.5px;color:var(--text-2);
  transition:color .25s ease,background .25s ease;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-link.is-active{color:var(--primary);background:rgba(22,224,184,.12)}
.nav-cta{
  margin-left:14px;padding:11px 22px;border-radius:999px;font-size:14.5px;font-weight:700;
  background:var(--accent);color:#231004;transition:transform .25s ease,filter .25s ease,box-shadow .25s ease;
  box-shadow:0 12px 28px -14px rgba(255,138,61,.75);white-space:nowrap;
}
.nav-cta:hover{filter:brightness(1.08);transform:translateY(-1px)}
.nav-cta:active{transform:translateY(0)}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:12px;align-items:center;justify-content:center;flex-direction:column;gap:5px}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;transition:transform .3s ease,opacity .3s ease}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.drawer{
  position:fixed;inset:0;z-index:79;background:rgba(6,10,11,.98);
  padding:96px 24px 40px;display:flex;flex-direction:column;gap:6px;
  transform:translateY(-8px);opacity:0;visibility:hidden;transition:opacity .3s ease,transform .3s ease,visibility .3s;
}
.drawer.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.drawer-label{font-size:12px;letter-spacing:.22em;color:var(--text-3);margin:18px 0 8px}
.drawer a.drawer-link{
  display:block;padding:15px 18px;border-radius:var(--r-md);
  border:1px solid var(--line);background:rgba(255,255,255,.02);
  font-size:16px;font-weight:600;color:var(--text-2);
}
.drawer a.drawer-link.is-active{color:var(--primary);border-color:rgba(22,224,184,.35);background:rgba(22,224,184,.08)}
.drawer .drawer-cta{margin-top:22px;display:block;text-align:center;padding:16px;border-radius:var(--r-md);background:var(--accent);color:#231004;font-weight:800}
body.drawer-open{overflow:hidden}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;padding:150px 0 78px;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,12,.86) 0%,rgba(7,11,12,.93) 52%,var(--bg) 100%);
}
.hero-glow{
  position:absolute;top:-24%;right:-12%;width:760px;height:760px;border-radius:50%;
  background:radial-gradient(circle,rgba(22,224,184,.22) 0%,transparent 66%);
  pointer-events:none;
}
.hero-glow-b{
  position:absolute;bottom:-30%;left:-14%;width:560px;height:560px;border-radius:50%;
  background:radial-gradient(circle,rgba(106,92,255,.18) 0%,transparent 68%);
  pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:56px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.14em;
  color:var(--primary);text-transform:uppercase;margin-bottom:18px;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--primary);border-radius:2px}
.hero h1{font-size:clamp(30px,4.1vw,46px);line-height:1.22;max-width:620px}
.hero h1 span{color:var(--primary)}
.hero-sub{margin-top:20px;max-width:540px;color:var(--text-2);font-size:17px;line-height:1.85}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-notes{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:26px;font-size:13.5px;color:var(--text-3)}
.hero-notes i{color:var(--primary);font-style:normal;margin-right:6px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 28px;border-radius:12px;font-size:15.5px;font-weight:700;
  transition:transform .25s ease,background .25s ease,color .25s ease,border-color .25s ease,box-shadow .25s ease,filter .25s ease;
}
.btn-primary{background:var(--accent);color:#231004;box-shadow:0 16px 34px -18px rgba(255,138,61,.9)}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px);filter:brightness(.96)}
.btn-ghost{background:transparent;border:1px solid rgba(22,224,184,.42);color:var(--primary)}
.btn-ghost:hover{background:rgba(22,224,184,.1);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-quiet{color:var(--text-2);padding:14px 8px;border-radius:0;position:relative}
.btn-quiet::after{content:"";position:absolute;left:8px;right:8px;bottom:8px;height:1px;background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform .3s ease}
.btn-quiet:hover{color:var(--text)}
.btn-quiet:hover::after{transform:scaleX(1)}
.btn:focus-visible,a:focus-visible,button:focus-visible{outline:2px solid var(--primary);outline-offset:3px}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}

/* ---------- 机位视觉 ---------- */
.hero-visual{position:relative;display:flex;justify-content:center;align-items:center;min-height:420px}
.device{
  position:relative;width:290px;border-radius:26px;padding:10px;
  background:linear-gradient(160deg,#1F2A2C,#0C1213);
  border:1px solid var(--line-strong);
  box-shadow:0 40px 80px -40px rgba(0,0,0,.95),0 0 0 1px rgba(22,224,184,.12);
  animation:floaty 5.4s ease-in-out infinite;
}
.device-bar{display:flex;gap:6px;padding:2px 6px 10px}
.device-bar span{width:8px;height:8px;border-radius:50%;background:rgba(255,255,255,.18)}
.device-bar span:nth-child(2){background:rgba(22,224,184,.6)}
.device-screen{border-radius:16px;overflow:hidden;border:1px solid var(--line);background:#0A0F10}
.device-screen img{width:100%;aspect-ratio:9/16;object-fit:cover}
.float-card{
  position:absolute;padding:10px 16px;border-radius:12px;font-size:13px;font-weight:600;
  background:rgba(13,20,21,.92);border:1px solid rgba(22,224,184,.3);color:var(--text);
  box-shadow:0 18px 40px -24px rgba(0,0,0,.95);backdrop-filter:blur(6px);
}
.float-card-a{top:12%;left:-4%;color:var(--primary)}
.float-card-b{bottom:14%;right:-2%;color:var(--accent);border-color:rgba(255,138,61,.32)}

/* ---------- 数据条 ---------- */
.stats-band{position:relative;padding:0 0 8px;margin-top:-8px}
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);
  border:1px solid var(--line);border-radius:var(--r-lg);
  background:linear-gradient(180deg,rgba(26,36,38,.92),rgba(18,26,28,.72));
  overflow:hidden;
}
.stat{padding:24px 26px;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat-label{font-size:13px;color:var(--text-3);margin-bottom:8px}
.stat-value{font-size:24px;font-weight:800;color:var(--text);letter-spacing:-.01em}
.stat-value em{font-style:normal;color:var(--primary);font-size:14px;font-weight:600;margin-left:6px}

/* ---------- 通用板块 ---------- */
.section{padding:80px 0;position:relative}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.section-head h2{font-size:clamp(23px,2.6vw,30px)}
.section-head p{margin-top:10px;color:var(--text-2);font-size:15.5px;max-width:660px}
.link-more{color:var(--primary);font-size:14.5px;font-weight:600;white-space:nowrap;border-bottom:1px solid transparent;transition:border-color .25s ease}
.link-more:hover{border-color:var(--primary)}

/* 价值点带 */
.value-band{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.value-item{padding:30px 24px;border-right:1px solid var(--line);position:relative;transition:background .4s ease}
.value-item:last-child{border-right:0}
.value-item:hover{background:rgba(22,224,184,.05)}
.value-num{font-size:12px;font-weight:800;letter-spacing:.2em;color:var(--primary);margin-bottom:14px}
.value-icon{
  width:38px;height:38px;display:grid;place-items:center;border-radius:10px;margin-bottom:16px;
  background:rgba(22,224,184,.1);color:var(--primary);font-size:17px;font-weight:800;
  clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px);
}
.value-item h3{font-size:17px;margin-bottom:8px}
.value-item p{font-size:14px;color:var(--text-2);line-height:1.75}

/* ---------- 截图轮播 ---------- */
.shot-wrap{position:relative}
.shot-track{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:6px 4px 22px;scrollbar-width:none;-ms-overflow-style:none;
}
.shot-track::-webkit-scrollbar{display:none}
.shot-card{
  flex:0 0 320px;scroll-snap-align:start;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);background:var(--surface);transition:transform .5s ease,border-color .5s ease,box-shadow .5s ease;
}
.shot-card:hover{transform:translateY(-4px);border-color:rgba(22,224,184,.42);box-shadow:0 0 0 1px rgba(22,224,184,.2),0 26px 46px -30px rgba(0,0,0,.95)}
.shot-media{position:relative;overflow:hidden;background:#0A0F10}
.shot-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .6s ease}
.shot-card:hover .shot-media img{transform:scale(1.04)}
.shot-body{padding:18px 20px 22px}
.shot-body h3{font-size:16px;margin-bottom:8px}
.shot-body p{font-size:13.5px;color:var(--text-2);line-height:1.7}
.shot-mask{position:absolute;top:0;bottom:22px;width:80px;pointer-events:none;z-index:2}
.shot-mask-l{left:0;background:linear-gradient(90deg,var(--bg),transparent)}
.shot-mask-r{right:0;background:linear-gradient(270deg,var(--bg),transparent)}
.shot-nav{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:6px}
.shot-dots{display:flex;gap:8px}
.shot-dot{width:22px;height:4px;border-radius:99px;background:rgba(255,255,255,.15);transition:background .3s ease,width .3s ease}
.shot-dot.is-active{background:var(--primary);width:34px}
.shot-btns{display:flex;gap:10px}
.shot-btn{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);display:grid;place-items:center;
  color:var(--text-2);transition:border-color .25s ease,color .25s ease,background .25s ease;
}
.shot-btn:hover{border-color:rgba(22,224,184,.5);color:var(--primary);background:rgba(22,224,184,.06)}

/* ---------- 系统要求 ---------- */
.spec-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.spec-card{
  border:1px solid var(--line);border-radius:var(--r-lg);background:linear-gradient(180deg,rgba(26,36,38,.6),rgba(18,26,28,.35));
  padding:30px 30px 26px;transition:border-color .5s ease,transform .5s ease;
}
.spec-card:hover{border-color:rgba(22,224,184,.35);transform:translateY(-2px)}
.spec-head{display:flex;align-items:center;gap:12px;padding-bottom:18px;border-bottom:1px solid var(--line);margin-bottom:8px}
.spec-badge{
  width:40px;height:40px;display:grid;place-items:center;border-radius:11px;font-size:15px;font-weight:800;
  background:rgba(22,224,184,.1);color:var(--primary);
}
.spec-head h3{font-size:18px}
.spec-head small{display:block;font-size:12.5px;color:var(--text-3);font-weight:500;margin-top:2px}
.spec-row{display:flex;align-items:baseline;justify-content:space-between;gap:16px;padding:13px 0;border-bottom:1px dashed rgba(255,255,255,.07);font-size:14.5px}
.spec-row:last-child{border-bottom:0}
.spec-row dt{color:var(--text-2)}
.spec-row dd{margin:0;font-weight:600;color:var(--text)}

/* ---------- 评价墙 ---------- */
.review-wall{columns:3;column-gap:20px}
.review-card{
  break-inside:avoid;margin-bottom:20px;padding:22px;border-radius:var(--r-md);
  border:1px solid var(--line);background:rgba(26,36,38,.5);
  transition:border-color .5s ease,transform .5s ease,background .5s ease;
}
.review-card:hover{border-color:rgba(22,224,184,.34);transform:translateY(-2px);background:rgba(26,36,38,.82)}
.review-top{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.avatar{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;font-weight:800;font-size:15px;color:#04211b;
  background:linear-gradient(135deg,var(--primary),#0d9c81);flex-shrink:0;
}
.review-top strong{display:block;font-size:14.5px}
.review-top span{font-size:12.5px;color:var(--text-3)}
.stars{color:var(--accent);font-size:13px;letter-spacing:2px;margin-bottom:10px}
.review-card p{font-size:14.5px;color:var(--text-2);line-height:1.8}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.tag{
  font-size:12px;padding:4px 10px;border-radius:999px;
  border:1px solid var(--line);color:var(--text-3);background:rgba(255,255,255,.02);
}
.tag.is-brand{color:var(--primary);border-color:rgba(22,224,184,.32);background:rgba(22,224,184,.08)}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:24px}
.news-lead{
  border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  background:linear-gradient(180deg,rgba(26,36,38,.85),rgba(18,26,28,.5));
  transition:border-color .5s ease,transform .5s ease;
}
.news-lead:hover{border-color:rgba(22,224,184,.4);transform:translateY(-2px)}
.news-lead .news-media{overflow:hidden}
.news-lead .news-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .6s ease}
.news-lead:hover .news-media img{transform:scale(1.03)}
.news-lead-body{padding:24px 26px 28px}
.news-lead h3{font-size:20px;margin:14px 0 10px;line-height:1.45}
.news-lead p{font-size:14.5px;color:var(--text-2);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;gap:12px;margin-top:16px;font-size:13px;color:var(--text-3)}
.badge{
  display:inline-block;font-size:12px;font-weight:600;padding:4px 11px;border-radius:999px;
  color:var(--primary);background:rgba(22,224,184,.1);border:1px solid rgba(22,224,184,.26);
}
.news-list{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;background:rgba(18,26,28,.45)}
.news-item{padding:20px 24px;border-bottom:1px solid var(--line);transition:background .35s ease}
.news-item:last-child{border-bottom:0}
.news-item:hover{background:rgba(22,224,184,.05)}
.news-item h4{font-size:15.5px;line-height:1.55;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .25s ease}
.news-item:hover h4{color:var(--primary)}
.news-item p{font-size:13.5px;color:var(--text-3);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.empty-state{
  border:1px dashed var(--line-strong);border-radius:var(--r-lg);padding:64px 24px;text-align:center;
  background:rgba(18,26,28,.35);
}
.empty-state strong{display:block;font-size:17px;margin-bottom:8px}
.empty-state span{color:var(--text-3);font-size:14px}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:940px}
.faq-item{border:1px solid var(--line);border-radius:var(--r-md);background:rgba(18,26,28,.5);overflow:hidden;transition:border-color .35s ease,background .35s ease}
.faq-item[open]{border-color:rgba(22,224,184,.36);background:rgba(22,224,184,.045);border-left:3px solid var(--primary)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 26px;display:flex;align-items:center;justify-content:space-between;gap:18px;
  font-size:16px;font-weight:700;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--primary)}
.faq-icon{
  flex-shrink:0;width:26px;height:26px;border-radius:8px;border:1px solid var(--line);
  display:grid;place-items:center;font-size:15px;font-weight:600;color:var(--primary);
  transition:transform .24s ease,background .24s ease;
}
.faq-item[open] .faq-icon{transform:rotate(45deg);background:rgba(22,224,184,.12)}
.faq-body{padding:0 26px 22px;color:var(--text-2);font-size:14.8px;line-height:1.85}

/* ---------- 底部 CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:24px;padding:56px 48px;
  border:1px solid rgba(22,224,184,.24);
  background:linear-gradient(120deg,rgba(22,224,184,.13) 0%,rgba(18,26,28,.92) 46%,rgba(106,92,255,.14) 100%);
}
.cta-band::after{
  content:"";position:absolute;top:0;left:-40%;width:40%;height:100%;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.06),transparent);
  animation:sweep 4.6s linear infinite;pointer-events:none;
}
.cta-grid{position:relative;display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,.6fr);gap:40px;align-items:center}
.cta-band h2{font-size:clamp(23px,2.8vw,32px);margin-bottom:14px}
.cta-band p{color:var(--text-2);max-width:560px;font-size:15.5px}
.cta-btns{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.verify{margin-top:22px;font-size:13px;color:var(--text-3);display:flex;flex-wrap:wrap;gap:8px 20px}
.qr-box{display:flex;flex-direction:column;align-items:center;gap:12px}
.qr{
  width:150px;height:150px;border-radius:16px;padding:12px;background:#F2F7F6;
  display:grid;grid-template-columns:repeat(7,1fr);grid-template-rows:repeat(7,1fr);gap:3px;
}
.qr i{background:#0B1112;border-radius:2px;display:block}
.qr i.off{background:transparent}
.qr-box span{font-size:12.5px;color:var(--text-3)}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:40px;border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(18,26,28,.5),rgba(7,11,12,1));
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--primary),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding:64px 0 44px}
.footer-brand .brand{margin-bottom:18px}
.footer-brand p{font-size:14px;color:var(--text-3);line-height:1.85;max-width:320px}
.footer-col h4{font-size:14px;letter-spacing:.06em;margin-bottom:18px;color:var(--text)}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a,.footer-col li span{font-size:14px;color:var(--text-3);transition:color .25s ease}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  border-top:1px solid var(--line);padding:22px 0 30px;
  display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-3)}
.footer-bottom a:hover{color:var(--primary)}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .nav-links{display:none}
  .nav-cta{display:none}
  .nav-toggle{display:flex;margin-left:auto}
  .hero{padding:124px 0 62px}
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero-visual{min-height:360px;order:2}
  .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(--line)}
  .value-band{grid-template-columns:repeat(2,1fr)}
  .value-item:nth-child(2){border-right:0}
  .value-item:nth-child(1),.value-item:nth-child(2){border-bottom:1px solid var(--line)}
  .news-grid{grid-template-columns:1fr}
  .review-wall{columns:2}
  .cta-grid{grid-template-columns:1fr;gap:32px}
  .qr-box{align-items:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:768px){
  body{font-size:15.5px}
  .container{width:calc(100% - 32px)}
  .section{padding:56px 0}
  .hero{padding:112px 0 52px}
  .hero-sub{font-size:15.5px}
  .hero-cta .btn{width:100%}
  .spec-grid{grid-template-columns:1fr}
  .review-wall{columns:1}
  .spec-card{padding:24px 22px}
  .shot-card{flex:0 0 78vw}
  .shot-mask{display:none}
  .cta-band{padding:38px 24px;border-radius:20px}
  .cta-btns .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;padding:48px 0 34px}
  .faq-item summary{padding:17px 18px;font-size:15px}
  .faq-body{padding:0 18px 20px}
}
@media (max-width:520px){
  .stats{grid-template-columns:1fr}
  .stat{border-right:0;border-bottom:1px solid var(--line)}
  .stat:last-child{border-bottom:0}
  .value-band{grid-template-columns:1fr}
  .value-item{border-right:0;border-bottom:1px solid var(--line)}
  .value-item:last-child{border-bottom:0}
  .hero h1{font-size:28px}
  .brand-text{font-size:15px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --bg:#070B0C;
  --surface:#121A1C;
  --surface-2:#1A2426;
  --line:rgba(255,255,255,.08);
  --primary:#16E0B8;
  --accent:#FF8A3D;
  --violet:#6A5CFF;
  --text:#F2F7F6;
  --text-2:#A8B7B5;
  --text-3:#6E8180;
  --paper:#F6F9F8;
  --paper-line:#DCE6E3;
  --paper-ink:#16211F;
  --paper-ink-2:#41534F;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --container:1200px;
  --shadow-glow:0 0 0 1px rgba(22,224,184,.22);
  --shadow-deep:0 18px 40px -20px rgba(0,0,0,.7);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:'HarmonyOS Sans','MiSans','Source Han Sans SC','Noto Sans SC',system-ui,-apple-system,'Segoe UI',sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;}

/* ===== Header ===== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:rgba(7,11,12,.55);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.site-header.is-scrolled{
  background:rgba(9,14,15,.94);
  border-bottom-color:var(--line);
  box-shadow:0 12px 30px -22px rgba(0,0,0,.9);
}
.header-inner{
  height:64px;display:flex;align-items:center;gap:22px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:36px;height:36px;display:grid;place-items:center;
  border-radius:11px;
  background:linear-gradient(140deg,var(--primary),#0E9C81);
  color:#04120F;font-weight:800;font-size:15px;letter-spacing:.02em;
  box-shadow:0 0 0 1px rgba(22,224,184,.35),0 10px 24px -14px rgba(22,224,184,.8);
}
.brand-text{font-size:17px;font-weight:800;letter-spacing:.01em;color:var(--text);}
.brand-text em{font-style:normal;color:var(--primary);font-weight:700;margin-left:2px;font-size:15px;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  position:relative;display:inline-block;padding:8px 14px;border-radius:999px;
  font-size:14.5px;color:var(--text-2);transition:color .25s ease,background .25s ease;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05);}
.nav-link.is-active{color:var(--primary);background:rgba(22,224,184,.12);box-shadow:inset 0 0 0 1px rgba(22,224,184,.28);}
.nav-cta{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:8px;
  padding:10px 20px;border-radius:999px;
  background:var(--accent);color:#1A0D03;font-weight:700;font-size:14px;
  box-shadow:0 12px 26px -16px rgba(255,138,61,.9);
  transition:transform .2s ease,filter .2s ease,background .2s ease;
}
.nav-cta:hover{filter:brightness(1.07);transform:translateY(-1px);}
.nav-cta:active{transform:translateY(0);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);place-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);margin:3px auto;border-radius:2px;transition:.25s;}
.drawer{
  position:fixed;inset:0;z-index:90;background:rgba(6,10,11,.98);
  display:none;flex-direction:column;padding:18px 20px 32px;
}
.drawer.is-open{display:flex;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px;}
.drawer-close{width:42px;height:42px;border-radius:12px;border:1px solid var(--line);color:var(--text-2);font-size:18px;}
.drawer-group{font-size:12.5px;letter-spacing:.16em;color:var(--text-3);margin:16px 0 10px;}
.drawer a.d-item{
  display:flex;align-items:center;justify-content:space-between;
  padding:15px 16px;border-radius:var(--r-md);border:1px solid var(--line);
  margin-bottom:10px;font-size:16px;color:var(--text);background:var(--surface);
}
.drawer a.d-item.is-active{border-color:rgba(22,224,184,.45);color:var(--primary);}
.drawer .btn{width:100%;justify-content:center;margin-top:10px;}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:12px;font-weight:700;font-size:15px;
  transition:transform .2s ease,filter .2s ease,background .25s ease,color .25s ease,border-color .25s ease,opacity .2s ease;
  border:1px solid transparent;white-space:nowrap;
}
.btn-primary{background:var(--accent);color:#1A0D03;box-shadow:0 16px 34px -18px rgba(255,138,61,.95);}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(1px);filter:brightness(.96);}
.btn-ghost{border-color:rgba(22,224,184,.5);color:var(--primary);background:transparent;}
.btn-ghost:hover{background:rgba(22,224,184,.1);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-link{color:var(--text-2);padding:14px 4px;border-radius:0;}
.btn-link:hover{color:var(--primary);}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;}

/* ===== Article hero ===== */
.article-hero{
  position:relative;
  padding:132px 0 56px;
  background:
    radial-gradient(760px 420px at 82% 0%,rgba(22,224,184,.16),transparent 62%),
    radial-gradient(520px 320px at 8% 100%,rgba(106,92,255,.1),transparent 65%),
    linear-gradient(180deg,#080D0E 0%,#070B0C 100%);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.article-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:52px 52px;
  mask-image:radial-gradient(circle at 70% 20%,#000 0%,transparent 72%);
  -webkit-mask-image:radial-gradient(circle at 70% 20%,#000 0%,transparent 72%);
  opacity:.9;
}
.article-hero .container{position:relative;z-index:2;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--text-3);margin-bottom:22px;}
.breadcrumb a{color:var(--text-2);transition:color .2s ease;}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:var(--text-3);opacity:.6;}
.breadcrumb .current{color:var(--text-2);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;border-radius:999px;font-size:13px;font-weight:600;
  color:var(--primary);background:rgba(22,224,184,.1);
  box-shadow:inset 0 0 0 1px rgba(22,224,184,.3);
}
.article-hero h1{
  margin:18px 0 0;
  font-size:clamp(28px,4vw,44px);
  line-height:1.25;font-weight:800;letter-spacing:-.01em;max-width:22ch;
}
.article-lead{
  margin-top:18px;max-width:72ch;color:var(--text-2);font-size:16px;line-height:1.85;
}
.article-meta{display:flex;flex-wrap:wrap;gap:10px 12px;margin-top:24px;}
.article-meta li{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:var(--r-sm);
  background:var(--surface);border:1px solid var(--line);
  font-size:13px;color:var(--text-2);
}
.article-meta li strong{color:var(--text);font-weight:700;}
.article-meta .dot{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px rgba(22,224,184,.9);}

/* ===== Layout ===== */
.article-main{padding:56px 0 72px;position:relative;}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 312px;gap:32px;align-items:start;}
.article-col{min-width:0;}

/* ===== Paper ===== */
.paper{
  background:var(--paper);color:var(--paper-ink);
  border-radius:var(--r-lg);
  padding:clamp(22px,4vw,52px);
  box-shadow:0 30px 70px -40px rgba(0,0,0,.95),0 0 0 1px rgba(255,255,255,.06);
}
.article-body{max-width:800px;margin:0 auto;font-size:17px;line-height:1.9;color:var(--paper-ink);}
.article-body > * + *{margin-top:20px;}
.article-body h2{
  font-size:clamp(20px,2.4vw,25px);line-height:1.35;font-weight:800;color:#0D1A17;
  padding-left:14px;border-left:4px solid var(--primary);margin-top:40px;
}
.article-body h3{font-size:19px;font-weight:700;color:#13201D;margin-top:30px;}
.article-body h4{font-size:17px;font-weight:700;color:#1B2A26;margin-top:24px;}
.article-body p{color:#33443F;}
.article-body a{color:#0A8B72;border-bottom:1px solid rgba(10,139,114,.35);transition:color .2s ease,border-color .2s ease;}
.article-body a:hover{color:#06614F;border-color:#06614F;}
.article-body strong{color:#0D1A17;font-weight:700;}
.article-body ul,.article-body ol{padding-left:22px;color:#33443F;}
.article-body ul li{list-style:disc;margin:8px 0;}
.article-body ol li{list-style:decimal;margin:8px 0;}
.article-body img{border-radius:var(--r-md);width:100%;height:auto;margin:26px 0;box-shadow:0 20px 40px -28px rgba(0,0,0,.55);}
.article-body figure{margin:26px 0;}
.article-body figcaption{font-size:13.5px;color:#657873;text-align:center;margin-top:10px;}
.article-body blockquote{
  margin:26px 0;padding:18px 20px;border-left:4px solid var(--primary);
  background:#E9F2EF;border-radius:0 var(--r-md) var(--r-md) 0;color:#2A3B37;
}
.article-body blockquote p{margin:0;color:#2A3B37;}
.article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;}
.article-body th,.article-body td{border:1px solid var(--paper-line);padding:11px 14px;text-align:left;}
.article-body th{background:#E6EFEC;font-weight:700;color:#13201D;font-variant-numeric:tabular-nums;}
.article-body td{color:#3A4A46;}
.article-body pre{
  background:#0C1614;color:#C9F5E9;padding:18px 20px;border-radius:var(--r-md);
  overflow-x:auto;font-size:14px;line-height:1.7;margin:26px 0;
}
.article-body code{
  background:#E4EDEA;color:#0A5C4C;padding:2px 7px;border-radius:6px;font-size:14.5px;
}
.article-body pre code{background:transparent;color:inherit;padding:0;}
.article-body hr{border:0;border-top:1px dashed var(--paper-line);margin:34px 0;}

/* empty */
.empty-state{max-width:640px;margin:0 auto;text-align:center;padding:44px 10px;}
.empty-icon{
  width:60px;height:60px;margin:0 auto 20px;border-radius:16px;
  display:grid;place-items:center;background:#E4EDEA;color:#0A8B72;font-size:24px;font-weight:800;
}
.empty-title{font-size:22px;font-weight:800;color:#0D1A17;margin-bottom:10px;}
.empty-state p{color:#41534F;margin-bottom:22px;}

/* ===== Article footer ===== */
.article-foot{
  margin-top:26px;padding:24px;border-radius:var(--r-lg);
  background:var(--surface);border:1px solid var(--line);
}
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;}
.tag-label{font-size:13px;color:var(--text-3);letter-spacing:.08em;}
.tag{
  display:inline-block;padding:6px 13px;border-radius:999px;
  font-size:13px;color:var(--text-2);background:var(--surface-2);border:1px solid var(--line);
  transition:color .2s ease,border-color .2s ease;
}
.tag:hover{color:var(--primary);border-color:rgba(22,224,184,.45);}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:22px;}
.pager a{
  display:flex;flex-direction:column;gap:6px;padding:16px 18px;border-radius:var(--r-md);
  background:var(--surface-2);border:1px solid var(--line);transition:border-color .25s ease,transform .25s ease,background .25s ease;
}
.pager a:hover{border-color:rgba(22,224,184,.4);transform:translateY(-2px);background:#1F2A2C;}
.pager span{font-size:12.5px;color:var(--text-3);letter-spacing:.08em;}
.pager strong{font-size:15px;font-weight:700;color:var(--text);}

/* ===== Aside ===== */
.article-aside{display:flex;flex-direction:column;gap:16px;position:sticky;top:88px;}
.aside-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:20px;box-shadow:var(--shadow-deep);
}
.aside-card h3{
  font-size:13px;letter-spacing:.14em;color:var(--text-3);font-weight:700;margin-bottom:14px;
  display:flex;align-items:center;gap:8px;
}
.aside-card h3::before{content:"";width:14px;height:2px;background:var(--primary);border-radius:2px;}
.info-list li{display:flex;justify-content:space-between;gap:12px;padding:9px 0;border-bottom:1px dashed var(--line);font-size:13.5px;}
.info-list li:last-child{border-bottom:0;}
.info-list span{color:var(--text-3);}
.info-list strong{color:var(--text);font-weight:600;font-variant-numeric:tabular-nums;}
.toc-list li{margin:2px 0;}
.toc-list a{
  display:block;padding:7px 11px;border-radius:9px;font-size:13.8px;color:var(--text-2);
  border-left:2px solid transparent;transition:.22s;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.toc-list a:hover{color:var(--primary);background:rgba(22,224,184,.08);border-left-color:var(--primary);}
.toc-list .toc-sub a{padding-left:22px;font-size:13.2px;color:var(--text-3);}
.toc-empty{font-size:13.5px;color:var(--text-3);}
.quick-links li + li{margin-top:8px;}
.quick-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 13px;border-radius:11px;background:var(--surface-2);
  border:1px solid var(--line);font-size:14px;color:var(--text-2);transition:.22s;
}
.quick-links a:hover{color:var(--primary);border-color:rgba(22,224,184,.4);transform:translateX(2px);}
.quick-links a i{font-style:normal;color:var(--primary);}

/* ===== Related ===== */
.related{padding:8px 0 72px;}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:26px;}
.section-head h2{font-size:clamp(22px,2.6vw,30px);font-weight:800;letter-spacing:-.01em;}
.section-head p{color:var(--text-2);font-size:14.5px;margin-top:8px;max-width:60ch;}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.rcard{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.rcard:hover{transform:translateY(-3px);border-color:rgba(22,224,184,.42);box-shadow:var(--shadow-glow),var(--shadow-deep);}
.rcard figure{margin:0;aspect-ratio:16/10;overflow:hidden;background:var(--surface-2);}
.rcard figure img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease;}
.rcard:hover figure img{transform:scale(1.04);}
.rcard-body{padding:18px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rcard-body h3{font-size:17px;font-weight:700;line-height:1.45;}
.rcard-body p{font-size:14px;color:var(--text-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rcard-more{margin-top:auto;font-size:13.5px;color:var(--primary);font-weight:600;}

/* ===== CTA band ===== */
.cta-band{padding:0 0 88px;}
.cta-inner{
  position:relative;overflow:hidden;border-radius:24px;
  border:1px solid rgba(22,224,184,.24);
  background:
    radial-gradient(600px 300px at 88% 10%,rgba(22,224,184,.2),transparent 60%),
    radial-gradient(420px 260px at 4% 100%,rgba(106,92,255,.14),transparent 62%),
    linear-gradient(135deg,#0E1718,#080D0E);
  padding:clamp(28px,4vw,52px);
  display:grid;grid-template-columns:1.35fr .9fr;gap:32px;align-items:center;
}
.cta-inner h2{font-size:clamp(22px,3vw,32px);font-weight:800;line-height:1.3;letter-spacing:-.01em;}
.cta-inner p{margin-top:14px;color:var(--text-2);font-size:15px;line-height:1.85;max-width:56ch;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.cta-side{display:flex;flex-direction:column;gap:14px;}
.qr-box{
  border-radius:var(--r-md);border:1px dashed rgba(255,255,255,.18);
  background:rgba(255,255,255,.03);padding:16px;display:flex;align-items:center;gap:14px;
}
.qr-box .qr-img{width:74px;height:74px;border-radius:10px;overflow:hidden;background:#0C1517;flex:0 0 auto;}
.qr-box .qr-img img{width:100%;height:100%;object-fit:cover;opacity:.92;}
.qr-box strong{display:block;font-size:14.5px;color:var(--text);}
.qr-box span{font-size:13px;color:var(--text-3);}
.verify-line{display:flex;flex-wrap:wrap;gap:10px;font-size:12.8px;color:var(--text-3);}
.verify-line i{font-style:normal;color:var(--primary);}

/* ===== Footer ===== */
.site-footer{
  position:relative;background:#050A0B;border-top:1px solid var(--line);
  padding:56px 0 0;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--primary),transparent);opacity:.7;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.15fr;gap:38px;padding-bottom:44px;}
.footer-brand p{margin-top:16px;color:var(--text-3);font-size:14px;line-height:1.85;max-width:38ch;}
.footer-col h4{font-size:14px;font-weight:700;color:var(--text);letter-spacing:.06em;margin-bottom:16px;}
.footer-col ul li{margin-bottom:11px;}
.footer-col ul a,.footer-col ul span{font-size:14px;color:var(--text-3);transition:color .22s ease;}
.footer-col ul a:hover{color:var(--primary);}
.footer-bottom{
  border-top:1px solid var(--line);padding-top:20px;padding-bottom:26px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}

/* ===== Responsive ===== */
@media (max-width:1279px){
  .article-layout{grid-template-columns:minmax(0,1fr) 286px;}
}
@media (max-width:1023px){
  .article-layout{grid-template-columns:1fr;gap:22px;}
  .article-aside{
    position:static;order:-1;flex-direction:row;gap:12px;overflow-x:auto;
    padding-bottom:6px;scrollbar-width:thin;
  }
  .aside-card{flex:0 0 auto;min-width:230px;padding:14px 16px;}
  .aside-card h3{margin-bottom:10px;}
  .toc-list{display:flex;gap:8px;overflow-x:auto;}
  .toc-list li{margin:0;}
  .toc-list a{white-space:nowrap;border-left:0;border-bottom:2px solid transparent;padding:6px 10px;}
  .toc-list a:hover{border-left-color:transparent;border-bottom-color:var(--primary);}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-inner{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .nav-links,.nav-cta{display:none;}
  .nav-toggle{display:grid;margin-left:auto;}
  .header-inner{height:56px;gap:12px;}
  .brand-text{font-size:15.5px;}
  .brand-text em{font-size:13.5px;}
  .article-hero{padding:100px 0 40px;}
  .article-hero h1{font-size:26px;max-width:none;}
  .article-lead{font-size:15px;}
  .article-main{padding:36px 0 52px;}
  .paper{padding:20px 16px;border-radius:var(--r-md);}
  .article-body{font-size:16.5px;line-height:1.85;}
  .pager{grid-template-columns:1fr;}
  .related-grid{grid-template-columns:1fr;}
  .related{padding-bottom:52px;}
  .cta-band{padding-bottom:60px;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:32px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .breadcrumb .current{max-width:100%;white-space:normal;}
}
@media (max-width:520px){
  .article-meta li{width:100%;}
  .aside-card{min-width:200px;}
}

/* roulang page: category1 */
:root{
  --bg:#070B0C;
  --surface:#121A1C;
  --surface-2:#1A2426;
  --line:rgba(255,255,255,.08);
  --primary:#16E0B8;
  --accent:#FF8A3D;
  --violet:#6A5CFF;
  --text:#F2F7F6;
  --text-2:#A8B7B5;
  --text-3:#6E8180;
  --r-s:10px;
  --r-m:14px;
  --r-l:20px;
  --shadow-card:0 18px 40px -20px rgba(0,0,0,.7);
  --glow-ring:0 0 0 1px rgba(22,224,184,.22);
  --container:1200px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"HarmonyOS Sans SC","MiSans","PingFang SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.25;letter-spacing:-.01em}
p{margin:0}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:rgba(7,11,12,.58);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background .3s var(--ease),border-color .3s var(--ease);
}
.site-header.is-scrolled{background:rgba(9,14,15,.94);border-bottom-color:var(--line)}
.header-inner{display:flex;align-items:center;gap:16px;height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  display:grid;place-items:center;width:34px;height:34px;
  background:linear-gradient(135deg,var(--primary),#0FA98C);
  color:#04110E;font-weight:900;font-size:13px;letter-spacing:.02em;
  clip-path:polygon(10px 0,100% 0,100% calc(100% - 10px),calc(100% - 10px) 100%,0 100%,0 10px);
}
.brand-text{font-size:16px;font-weight:800;color:var(--text);white-space:nowrap}
.brand-text em{font-style:normal;color:var(--primary);font-weight:700}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;margin-right:8px}
.nav-link{
  position:relative;padding:8px 14px;border-radius:999px;font-size:14.5px;
  color:var(--text-2);transition:color .25s var(--ease),background .25s var(--ease),box-shadow .25s var(--ease);
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-link.is-active{color:var(--primary);background:rgba(22,224,184,.12);box-shadow:inset 0 0 0 1px rgba(22,224,184,.25)}
.nav-link:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.header-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:none;width:40px;height:40px;align-items:center;justify-content:center;
  border-radius:var(--r-s);background:rgba(255,255,255,.06);border:1px solid var(--line);color:var(--text);
  transition:background .25s var(--ease),border-color .25s var(--ease);
}
.nav-toggle:hover{background:rgba(22,224,184,.14);border-color:rgba(22,224,184,.4);color:var(--primary)}
.nav-toggle:focus-visible{outline:2px solid var(--primary);outline-offset:2px}

.mobile-drawer{
  position:fixed;inset:0;z-index:70;padding:22px 22px 32px;
  background:rgba(7,11,12,.97);backdrop-filter:blur(10px);
  display:flex;flex-direction:column;
  opacity:0;visibility:hidden;transform:translateY(-10px);
  transition:opacity .28s var(--ease),transform .28s var(--ease),visibility .28s;
}
.mobile-drawer.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}
.drawer-links{display:flex;flex-direction:column;gap:8px;margin-bottom:26px}
.drawer-links .nav-link{
  font-size:16px;padding:14px 16px;border-radius:var(--r-m);
  background:rgba(255,255,255,.03);border:1px solid var(--line);color:var(--text-2);
}
.drawer-links .nav-link.is-active{color:var(--primary);border-color:rgba(22,224,184,.35);background:rgba(22,224,184,.1)}
.drawer-note{font-size:13px;color:var(--text-3);margin-top:auto;line-height:1.8}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:12px;font-size:15px;font-weight:700;
  border:1px solid transparent;white-space:nowrap;
  transition:transform .25s var(--ease),background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:3px}
.btn-primary{background:var(--accent);color:#1A0D03;box-shadow:0 12px 30px -14px rgba(255,138,61,.75)}
.btn-primary:hover{background:#FFA05F;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px);background:#F07A2C}
.btn-outline{background:transparent;border-color:rgba(22,224,184,.45);color:var(--primary)}
.btn-outline:hover{background:rgba(22,224,184,.1);border-color:var(--primary);transform:translateY(-1px)}
.btn-outline:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--text-2);padding:14px 6px;border-radius:8px;position:relative}
.btn-ghost::after{
  content:"";position:absolute;left:6px;right:6px;bottom:8px;height:1px;background:currentColor;
  transform:scaleX(0);transform-origin:left;transition:transform .3s var(--ease);
}
.btn-ghost:hover{color:var(--primary)}
.btn-ghost:hover::after{transform:scaleX(1)}
.btn-sm{padding:9px 18px;font-size:13.5px;border-radius:10px}
.btn-lg{padding:16px 32px;font-size:16px}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}

/* ============ 页面头部横幅 ============ */
.hero-band{
  position:relative;overflow:hidden;padding:152px 0 72px;
  background:url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.hero-band::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(7,11,12,.97) 0%,rgba(7,11,12,.9) 46%,rgba(7,11,12,.6) 100%);
}
.hero-band::after{
  content:"";position:absolute;inset:0;opacity:.55;
  background-image:radial-gradient(circle,rgba(255,255,255,.1) 1px,transparent 1px);
  background-size:26px 26px;
}
.hero-inner{position:relative;z-index:2}
.hero-inner h1{font-size:clamp(30px,4.4vw,46px);letter-spacing:-.02em;margin-bottom:20px;max-width:900px}
.hero-inner .hero-lead{font-size:17px;line-height:1.9;color:var(--text-2);max-width:760px;margin-bottom:30px}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:20px;flex-wrap:wrap}
.breadcrumb a{color:var(--text-2);transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .crumb-sep{color:var(--text-3)}
.breadcrumb .crumb-current{color:var(--primary)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:rgba(22,224,184,.1);border:1px solid rgba(22,224,184,.28);
  color:var(--primary);font-size:12.5px;font-weight:700;letter-spacing:.08em;margin-bottom:18px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:42px}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:var(--r-l);
  overflow:hidden;max-width:940px;
}
.hero-stats li{background:rgba(18,26,28,.84);padding:18px 20px;display:flex;flex-direction:column;gap:6px}
.stat-label{font-size:12.5px;color:var(--text-3);letter-spacing:.04em}
.stat-value{font-size:15px;font-weight:700;color:var(--text);font-variant-numeric:tabular-nums}

/* ============ 板块 ============ */
.section{padding:80px 0;position:relative}
.section--alt{background:linear-gradient(180deg,rgba(18,26,28,.55),rgba(7,11,12,0));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:42px}
.section-head h2{font-size:clamp(24px,2.6vw,30px);margin-bottom:14px}
.section-head p{color:var(--text-2);font-size:16px;line-height:1.85}

/* ============ 入口卡片 ============ */
.entry-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.entry-card{
  position:relative;display:flex;flex-direction:column;gap:14px;
  padding:28px 26px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-l);
  overflow:hidden;
  transition:transform .6s var(--ease),border-color .6s var(--ease),box-shadow .6s var(--ease);
}
.entry-card::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--primary),transparent 70%)}
.entry-card:hover{transform:translateY(-2px);border-color:rgba(22,224,184,.4);box-shadow:var(--glow-ring),var(--shadow-card)}
.entry-icon{
  width:44px;height:44px;display:grid;place-items:center;border-radius:12px;
  background:rgba(22,224,184,.12);color:var(--primary);font-size:17px;
}
.entry-card h3{font-size:19px}
.entry-card > p{color:var(--text-2);font-size:14.5px;line-height:1.85}
.entry-list{display:flex;flex-direction:column;gap:9px;font-size:14px;color:var(--text-2)}
.entry-list li{display:flex;gap:9px;align-items:flex-start;line-height:1.75}
.entry-list li::before{
  content:"";width:6px;height:6px;margin-top:9px;flex:none;background:var(--primary);
  clip-path:polygon(50% 0,100% 50%,50% 100%,0 50%);
}
.card-link{
  margin-top:auto;display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:700;color:var(--primary);padding-top:6px;
  transition:gap .25s var(--ease),color .25s var(--ease);
}
.card-link:hover{gap:12px;color:#5BF0D2}
.card-link:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}

/* ============ 左右交替图文 ============ */
.feature-stack{display:flex;flex-direction:column}
.feature-row{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:56px;align-items:center;padding:40px 0;
}
.feature-row + .feature-row{border-top:1px solid var(--line)}
.feature-row.is-reversed .feature-media{order:2}
.feature-media{
  position:relative;border-radius:var(--r-l);overflow:hidden;
  border:1px solid var(--line);background:var(--surface-2);
  box-shadow:var(--shadow-card);
}
.feature-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .8s var(--ease)}
.feature-row:hover .feature-media img{transform:scale(1.03)}
.feature-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,11,12,0) 46%,rgba(7,11,12,.7))}
.feature-badge{
  position:absolute;top:16px;left:16px;z-index:2;padding:6px 12px;border-radius:999px;
  background:rgba(7,11,12,.78);border:1px solid rgba(22,224,184,.32);color:var(--primary);
  font-size:12.5px;font-weight:700;
}
.feature-body .feature-index{
  display:block;font-size:13px;font-weight:800;letter-spacing:.16em;color:var(--accent);
  font-variant-numeric:tabular-nums;margin-bottom:14px;
}
.feature-body h3{font-size:clamp(21px,2.2vw,26px);margin-bottom:16px}
.feature-body > p{color:var(--text-2);line-height:1.9;margin-bottom:20px}
.feature-points{display:grid;gap:10px}
.feature-points li{
  display:flex;gap:11px;align-items:flex-start;font-size:14.5px;color:var(--text-2);
  background:rgba(255,255,255,.02);border:1px solid var(--line);border-radius:var(--r-s);padding:12px 14px;
}
.feature-points li i{color:var(--primary);margin-top:5px;font-size:13px}

/* ============ 准备清单 ============ */
.checklist{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.check-item{
  padding:26px 22px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-m);
  transition:transform .5s var(--ease),border-color .5s var(--ease),box-shadow .5s var(--ease);
}
.check-item:hover{transform:translateY(-2px);border-color:rgba(22,224,184,.38);box-shadow:var(--glow-ring)}
.check-num{display:block;font-size:13px;font-weight:800;color:var(--accent);letter-spacing:.14em;font-variant-numeric:tabular-nums;margin-bottom:14px}
.check-item h3{font-size:16.5px;margin-bottom:10px}
.check-item p{font-size:14px;color:var(--text-2);line-height:1.8}

/* ============ 异常排查 ============ */
.trouble-grid{display:grid;gap:14px}
.trouble-item{
  display:grid;grid-template-columns:auto 1fr auto;gap:20px;align-items:center;
  padding:22px 24px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-m);
  transition:transform .5s var(--ease),border-color .5s var(--ease),box-shadow .5s var(--ease);
}
.trouble-item:hover{transform:translateY(-2px);border-color:rgba(22,224,184,.35);box-shadow:var(--glow-ring)}
.trouble-icon{
  width:42px;height:42px;display:grid;place-items:center;border-radius:12px;flex:none;
  background:rgba(106,92,255,.14);color:#A79EFF;font-size:16px;
}
.trouble-item h3{font-size:16.5px;margin-bottom:6px}
.trouble-item p{font-size:14.5px;color:var(--text-2);line-height:1.8}
.tag{
  padding:5px 12px;border-radius:999px;font-size:12.5px;font-weight:700;
  white-space:nowrap;border:1px solid;justify-self:end;
}
.tag--warn{color:var(--accent);border-color:rgba(255,138,61,.35);background:rgba(255,138,61,.1)}
.tag--info{color:var(--primary);border-color:rgba(22,224,184,.3);background:rgba(22,224,184,.1)}
.tag--muted{color:var(--text-2);border-color:var(--line);background:rgba(255,255,255,.03)}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px;max-width:920px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-m);overflow:hidden;
  transition:border-color .3s var(--ease),background .3s var(--ease);
}
.faq-item[open]{border-color:rgba(22,224,184,.4);background:var(--surface-2)}
.faq-item summary{
  position:relative;list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:20px 24px;font-size:16px;font-weight:700;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:focus-visible{outline:2px solid var(--primary);outline-offset:-2px}
.faq-item summary::after{
  content:"+";font-size:20px;line-height:1;color:var(--primary);
  transition:transform .24s var(--ease);
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;
  background:var(--primary);opacity:0;transition:opacity .24s var(--ease);
}
.faq-item[open] summary::before{opacity:1}
.faq-body{padding:0 24px 22px;color:var(--text-2);font-size:15px;line-height:1.9}

/* ============ 结尾 CTA ============ */
.cta-band{
  position:relative;overflow:hidden;border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(18,26,28,.92),rgba(7,11,12,.96));
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background:radial-gradient(620px 320px at 88% 0%,rgba(22,224,184,.16),transparent 70%);
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.5fr .8fr;gap:52px;align-items:center;padding:78px 0}
.cta-inner h2{font-size:clamp(25px,2.9vw,34px);margin:16px 0 16px}
.cta-inner .cta-desc{color:var(--text-2);font-size:16px;line-height:1.9;margin-bottom:28px;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.cta-side{display:flex;flex-direction:column;align-items:center;gap:16px;text-align:center}
.qr-box{
  width:152px;height:152px;border-radius:var(--r-m);border:1px solid rgba(22,224,184,.3);
  display:grid;place-items:center;padding:12px;font-size:12.5px;line-height:1.6;color:var(--text-2);
  background:
    repeating-linear-gradient(45deg,rgba(22,224,184,.14) 0 6px,transparent 6px 12px),
    var(--surface-2);
}
.cta-verify{font-size:12.5px;color:var(--text-3);line-height:1.8}

/* ============ 页脚 ============ */
.site-footer{position:relative;background:#050809;border-top:1px solid var(--line);padding-top:64px}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(22,224,184,.75),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.footer-brand p{color:var(--text-2);font-size:14.5px;line-height:1.9;margin-top:20px;max-width:360px}
.footer-col h4{font-size:14px;color:var(--text);margin-bottom:18px;letter-spacing:.04em}
.footer-col ul{display:grid;gap:12px}
.footer-col a,.footer-col span{font-size:14px;color:var(--text-2);transition:color .25s var(--ease)}
.footer-col a:hover{color:var(--primary)}
.footer-col a:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:4px}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  padding:22px 24px 34px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);line-height:1.8;
}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .entry-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .checklist{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .cta-inner{grid-template-columns:1fr;padding:64px 0;gap:36px}
  .cta-side{align-items:flex-start;text-align:left}
}
@media (max-width:920px){
  .feature-row{grid-template-columns:1fr;gap:28px;padding:32px 0}
  .feature-row.is-reversed .feature-media{order:0}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .header-inner{height:56px}
  .brand-text{font-size:15px}
  .hero-band{padding:118px 0 54px}
  .hero-inner h1{font-size:clamp(27px,7vw,34px)}
  .hero-inner .hero-lead{font-size:15.5px}
  .hero-actions{flex-direction:column;align-items:stretch;margin-bottom:32px}
  .hero-actions .btn{width:100%}
  .section{padding:52px 0}
  .section-head{margin-bottom:30px}
  .entry-grid{grid-template-columns:1fr}
  .checklist{grid-template-columns:1fr}
  .trouble-item{grid-template-columns:auto 1fr;gap:14px}
  .trouble-item .tag{grid-column:1 / -1;justify-self:start}
  .faq-item summary{padding:18px 18px;font-size:15.5px}
  .faq-body{padding:0 18px 20px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;align-items:flex-start;padding:22px 16px 30px}
  .cta-inner{padding:56px 0}
  .hero-stats{grid-template-columns:1fr;max-width:100%}
}
@media (max-width:520px){
  .brand-text em{display:none}
  .entry-card{padding:24px 20px}
  .qr-box{width:132px;height:132px}
}

/* roulang page: category2 */
:root{
    --bg:#070B0C;
    --surface:#121A1C;
    --surface-2:#1A2426;
    --line:rgba(255,255,255,.08);
    --primary:#16E0B8;
    --accent:#FF8A3D;
    --violet:#6A5CFF;
    --text:#F2F7F6;
    --text-2:#A8B7B5;
    --text-3:#6E8180;
    --r-s:10px;
    --r-m:14px;
    --r-l:20px;
    --container:1200px;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    margin:0;
    background:var(--bg);
    color:var(--text);
    font-family:"HarmonyOS Sans SC","MiSans","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  img{display:block;max-width:100%;height:auto}
  a{color:inherit;text-decoration:none}
  button{font:inherit;color:inherit}
  ul,ol{margin:0;padding:0;list-style:none}
  h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:800;letter-spacing:.2px}
  p{margin:0}
  .container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
  .num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

  /* ---------- 顶部导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:80;
    background:rgba(7,11,12,.74);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border-bottom:1px solid transparent;
    transition:background .35s ease,border-color .35s ease,box-shadow .35s ease;
  }
  .site-header.is-scrolled{
    background:rgba(7,11,12,.96);
    border-bottom-color:var(--line);
    box-shadow:0 18px 40px -30px rgba(0,0,0,.9);
  }
  .nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:64px}
  .brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
  .brand-mark{
    width:34px;height:34px;display:grid;place-items:center;flex-shrink:0;
    border-radius:10px;
    background:linear-gradient(140deg,var(--primary),#0a8e78);
    color:#04110f;font-weight:800;font-size:13px;letter-spacing:.6px;
  }
  .brand-text{font-weight:800;font-size:16px;letter-spacing:.3px;white-space:nowrap}
  .brand-text em{font-style:normal;color:var(--primary);font-size:12px;font-weight:600;margin-left:5px}
  .nav-links{display:flex;align-items:center;gap:6px}
  .nav-link{
    display:inline-block;padding:8px 14px;border-radius:999px;
    font-size:14px;font-weight:500;color:var(--text-2);
    border:1px solid transparent;
    transition:color .25s ease,background .25s ease,border-color .25s ease;
  }
  .nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
  .nav-link:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
  .nav-link.is-active{
    color:var(--primary);
    background:rgba(22,224,184,.10);
    border-color:rgba(22,224,184,.28);
  }
  .nav-side{display:flex;align-items:center;gap:12px}
  .nav-cta{
    display:inline-flex;align-items:center;gap:6px;
    padding:9px 18px;border-radius:999px;
    background:var(--accent);color:#1a0d02;font-size:14px;font-weight:700;
    transition:transform .2s ease,background .25s ease,box-shadow .25s ease;
    box-shadow:0 14px 30px -18px rgba(255,138,61,.9);
  }
  .nav-cta:hover{background:#ffa163;transform:translateY(-1px)}
  .nav-cta:active{transform:translateY(1px)}
  .nav-cta:focus-visible{outline:2px solid var(--primary);outline-offset:3px}
  .menu-toggle{
    display:none;align-items:center;justify-content:center;
    width:40px;height:40px;border-radius:12px;
    background:rgba(255,255,255,.05);border:1px solid var(--line);cursor:pointer;
    transition:background .25s ease,border-color .25s ease;
  }
  .menu-toggle:hover{background:rgba(22,224,184,.12);border-color:rgba(22,224,184,.35)}
  .menu-toggle:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
  .menu-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;position:relative}
  .menu-toggle span::before,.menu-toggle span::after{
    content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px;
  }
  .menu-toggle span::before{top:-6px}
  .menu-toggle span::after{top:6px}

  .drawer{
    position:fixed;inset:0;z-index:100;
    background:rgba(7,11,12,.98);
    backdrop-filter:blur(6px);
    padding:20px 24px 40px;
    display:flex;flex-direction:column;gap:8px;
    transform:translateY(-12px);opacity:0;pointer-events:none;
    transition:opacity .28s ease,transform .28s ease;
  }
  .drawer.is-open{opacity:1;transform:translateY(0);pointer-events:auto}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
  .drawer-close{
    width:40px;height:40px;border-radius:12px;background:rgba(255,255,255,.06);
    border:1px solid var(--line);cursor:pointer;font-size:20px;line-height:1;
  }
  .drawer-close:hover{border-color:rgba(22,224,184,.4);color:var(--primary)}
  .drawer-link{
    padding:16px 18px;border-radius:var(--r-m);
    border:1px solid var(--line);background:var(--surface);
    color:var(--text-2);font-size:16px;font-weight:600;
  }
  .drawer-link:hover,.drawer-link.is-active{color:var(--primary);border-color:rgba(22,224,184,.35);background:var(--surface-2)}
  .drawer-cta{margin-top:12px;justify-content:center;padding:16px 24px;border-radius:var(--r-m)}

  /* ---------- 通用区块 ---------- */
  .section{padding:80px 0}
  .section-tight{padding:56px 0}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:13px;font-weight:700;letter-spacing:1px;
    color:var(--primary);text-transform:uppercase;
  }
  .eyebrow::before{content:"";width:20px;height:2px;background:var(--primary);border-radius:2px}
  .section-head{max-width:720px;margin-bottom:44px}
  .section-head h2{font-size:28px;margin:14px 0 12px}
  .section-head p{color:var(--text-2);font-size:15px}
  .divider{height:1px;background:var(--line)}

  /* ---------- Hero ---------- */
  .hero{position:relative;padding:48px 0 72px;overflow:hidden}
  .hero::before{
    content:"";position:absolute;inset:0;
    background-image:url('/assets/images/backpic/back-1.webp');
    background-size:cover;background-position:center;
    opacity:.14;
    -webkit-mask-image:linear-gradient(180deg,#000 0%,rgba(0,0,0,.5) 55%,transparent 95%);
    mask-image:linear-gradient(180deg,#000 0%,rgba(0,0,0,.5) 55%,transparent 95%);
  }
  .hero::after{
    content:"";position:absolute;top:-180px;right:-140px;width:560px;height:560px;
    background:radial-gradient(circle,rgba(22,224,184,.22),transparent 66%);
    pointer-events:none;
  }
  .hero-grid{position:relative;display:grid;grid-template-columns:1.04fr .96fr;gap:56px;align-items:center}
  .breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:20px}
  .breadcrumb a{transition:color .25s ease}
  .breadcrumb a:hover{color:var(--primary)}
  .breadcrumb .sep{opacity:.5}
  .breadcrumb .current{color:var(--text-2)}
  .status-pill{
    display:inline-flex;align-items:center;gap:9px;
    padding:7px 14px;border-radius:999px;font-size:13px;color:var(--text-2);
    background:rgba(22,224,184,.08);border:1px solid rgba(22,224,184,.24);
    margin-bottom:20px;
  }
  .pulse-dot{
    width:8px;height:8px;border-radius:50%;background:var(--primary);
    box-shadow:0 0 0 0 rgba(22,224,184,.6);animation:pulse 2.2s infinite;
  }
  @keyframes pulse{
    0%{box-shadow:0 0 0 0 rgba(22,224,184,.55)}
    70%{box-shadow:0 0 0 10px rgba(22,224,184,0)}
    100%{box-shadow:0 0 0 0 rgba(22,224,184,0)}
  }
  .hero h1{font-size:40px;line-height:1.22;margin-bottom:18px}
  .hero h1 mark{background:none;color:var(--primary)}
  .hero-lead{color:var(--text-2);font-size:16px;max-width:560px;margin-bottom:28px}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
  .hero-points{display:flex;flex-wrap:wrap;gap:18px;font-size:14px;color:var(--text-2)}
  .hero-points li{display:inline-flex;align-items:center;gap:8px}
  .tick{
    width:18px;height:18px;border-radius:6px;flex-shrink:0;
    display:grid;place-items:center;font-size:11px;font-weight:800;
    background:rgba(22,224,184,.14);color:var(--primary);
  }
  .device-frame{
    position:relative;padding:14px;border-radius:var(--r-l);
    background:linear-gradient(160deg,var(--surface-2),var(--surface));
    border:1px solid var(--line);
    box-shadow:0 0 0 1px rgba(22,224,184,.16),0 34px 70px -34px rgba(0,0,0,.9);
  }
  .device-frame img{border-radius:12px;width:100%}
  .device-tag{
    position:absolute;bottom:24px;left:-14px;
    padding:10px 16px;border-radius:12px;font-size:13px;font-weight:600;
    background:rgba(7,11,12,.92);border:1px solid rgba(22,224,184,.3);color:var(--primary);
    box-shadow:0 18px 40px -22px rgba(0,0,0,.9);
  }

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:9px;
    padding:14px 28px;border-radius:12px;
    font-size:15px;font-weight:700;cursor:pointer;border:1px solid transparent;
    transition:transform .2s ease,background .25s ease,color .25s ease,border-color .25s ease,box-shadow .25s ease;
  }
  .btn:focus-visible{outline:2px solid var(--primary);outline-offset:3px}
  .btn:disabled{opacity:.45;cursor:not-allowed;pointer-events:none}
  .btn-primary{background:var(--accent);color:#1a0d02;box-shadow:0 16px 34px -20px rgba(255,138,61,.95)}
  .btn-primary:hover{background:#ffa163;transform:translateY(-1px)}
  .btn-primary:active{transform:translateY(1px)}
  .btn-outline{border-color:rgba(22,224,184,.45);color:var(--primary);background:rgba(22,224,184,.06)}
  .btn-outline:hover{background:rgba(22,224,184,.14);border-color:var(--primary);transform:translateY(-1px)}
  .btn-outline:active{transform:translateY(1px)}
  .btn-ghost{color:var(--text-2);padding:14px 4px}
  .btn-ghost span{border-bottom:1px solid rgba(168,183,181,.45);padding-bottom:2px;transition:border-color .25s ease,color .25s ease}
  .btn-ghost:hover{color:var(--primary)}
  .btn-ghost:hover span{border-color:var(--primary)}

  /* ---------- 数据条 ---------- */
  .stat-strip{
    display:grid;grid-template-columns:repeat(4,1fr);
    gap:1px;background:var(--line);
    border:1px solid var(--line);border-radius:var(--r-l);overflow:hidden;
  }
  .stat{background:var(--surface);padding:24px 26px}
  .stat b{display:block;font-size:24px;font-weight:800;color:var(--text)}
  .stat b.accent{color:var(--accent)}
  .stat span{display:block;margin-top:4px;font-size:13px;color:var(--text-3)}

  /* ---------- 准备卡 ---------- */
  .prep-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
  .prep-card{
    position:relative;padding:28px 26px;border-radius:var(--r-l);
    background:var(--surface);border:1px solid var(--line);
    transition:transform .5s ease,border-color .5s ease,box-shadow .5s ease;
    overflow:hidden;
  }
  .prep-card::after{
    content:"";position:absolute;top:0;right:0;width:120px;height:120px;
    background:radial-gradient(circle at top right,rgba(22,224,184,.16),transparent 70%);
  }
  .prep-card:hover{transform:translateY(-2px);border-color:rgba(22,224,184,.34);box-shadow:0 0 0 1px rgba(22,224,184,.18),0 18px 40px -20px rgba(0,0,0,.75)}
  .prep-icon{
    width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
    background:rgba(22,224,184,.12);color:var(--primary);font-weight:800;font-size:15px;
    clip-path:polygon(10px 0,100% 0,100% calc(100% - 10px),calc(100% - 10px) 100%,0 100%,0 10px);
    margin-bottom:18px;
  }
  .prep-card h3{font-size:18px;margin-bottom:10px}
  .prep-card p{color:var(--text-2);font-size:14.5px}

  /* ---------- 时间线 ---------- */
  .timeline{position:relative;margin-top:8px}
  .timeline::before{
    content:"";position:absolute;left:27px;top:18px;bottom:26px;width:2px;
    background:linear-gradient(180deg,rgba(22,224,184,.7),rgba(22,224,184,.06));
  }
  .tl-item{position:relative;display:grid;grid-template-columns:56px 1fr;gap:26px;padding-bottom:34px}
  .tl-item:last-child{padding-bottom:0}
  .tl-num{
    width:56px;height:56px;border-radius:16px;display:grid;place-items:center;
    background:var(--surface-2);border:1px solid var(--line);
    color:var(--primary);font-weight:800;font-size:16px;position:relative;z-index:1;
    transition:background .45s ease,border-color .45s ease,color .45s ease;
  }
  .tl-card{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--r-l);
    padding:26px 28px;
    transition:transform .45s ease,border-color .45s ease,box-shadow .45s ease;
  }
  .tl-item:hover .tl-card{transform:translateY(-2px);border-color:rgba(22,224,184,.32);box-shadow:0 0 0 1px rgba(22,224,184,.16),0 18px 40px -20px rgba(0,0,0,.75)}
  .tl-item:hover .tl-num{background:rgba(22,224,184,.12);border-color:rgba(22,224,184,.42)}
  .tl-card h3{font-size:19px;margin-bottom:10px}
  .tl-card p{color:var(--text-2);font-size:15px}
  .tl-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
  .tag{
    display:inline-flex;align-items:center;gap:6px;
    padding:5px 12px;border-radius:999px;font-size:12.5px;font-weight:600;
    background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text-2);
  }
  .tag.is-accent{color:var(--accent);border-color:rgba(255,138,61,.32);background:rgba(255,138,61,.08)}
  .tag.is-brand{color:var(--primary);border-color:rgba(22,224,184,.3);background:rgba(22,224,184,.08)}
  .tag.is-violet{color:#a79fff;border-color:rgba(106,92,255,.35);background:rgba(106,92,255,.1)}

  /* ---------- 检查清单 ---------- */
  .checklist{
    display:grid;grid-template-columns:repeat(2,1fr);gap:14px 26px;
    padding:32px 34px;border-radius:var(--r-l);
    background:linear-gradient(150deg,var(--surface-2),var(--surface));
    border:1px solid var(--line);
  }
  .checklist li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text-2)}
  .checklist .tick{margin-top:4px}

  /* ---------- FAQ ---------- */
  .faq-list{display:grid;gap:14px}
  .faq-item{
    position:relative;border:1px solid var(--line);border-radius:var(--r-m);
    background:var(--surface);overflow:hidden;
    transition:border-color .3s ease,background .3s ease;
  }
  .faq-item::before{
    content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
    background:var(--primary);opacity:0;transition:opacity .3s ease;
  }
  .faq-item[open]{border-color:rgba(22,224,184,.34);background:var(--surface-2)}
  .faq-item[open]::before{opacity:1}
  .faq-q{
    display:flex;align-items:center;justify-content:space-between;gap:18px;
    padding:22px 26px;cursor:pointer;font-size:16.5px;font-weight:700;
    list-style:none;transition:color .25s ease;
  }
  .faq-q::-webkit-details-marker{display:none}
  .faq-q:hover{color:var(--primary)}
  .faq-q:focus-visible{outline:2px solid var(--primary);outline-offset:-2px}
  .faq-icon{
    flex-shrink:0;width:28px;height:28px;border-radius:9px;
    display:grid;place-items:center;font-size:17px;font-weight:600;
    background:rgba(255,255,255,.06);color:var(--text-2);
    transition:transform .28s ease,color .28s ease,background .28s ease;
  }
  .faq-item[open] .faq-icon{transform:rotate(45deg);color:var(--accent);background:rgba(255,138,61,.14)}
  .faq-a{padding:0 26px 24px;color:var(--text-2);font-size:15px;max-width:900px}

  /* ---------- CTA ---------- */
  .cta-band{
    position:relative;overflow:hidden;
    padding:52px;
    border-radius:var(--r-l);
    border:1px solid rgba(22,224,184,.24);
    background:
      radial-gradient(120% 150% at 100% 0%,rgba(22,224,184,.17),transparent 62%),
      radial-gradient(90% 120% at 0% 100%,rgba(255,138,61,.12),transparent 60%),
      var(--surface);
  }
  .cta-band::before{
    content:"";position:absolute;inset:0;
    background-image:radial-gradient(rgba(255,255,255,.09) 1px,transparent 1px);
    background-size:22px 22px;opacity:.35;pointer-events:none;
  }
  .cta-inner{position:relative;display:grid;grid-template-columns:1.3fr .7fr;gap:40px;align-items:center}
  .cta-band h2{font-size:26px;margin-bottom:14px}
  .cta-band p{color:var(--text-2);font-size:15px;max-width:620px}
  .cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
  .qr-box{
    padding:22px;border-radius:var(--r-m);
    background:rgba(7,11,12,.6);border:1px dashed rgba(22,224,184,.35);
    text-align:center;
  }
  .qr-slot{
    width:120px;height:120px;margin:0 auto 14px;border-radius:12px;
    display:grid;place-items:center;
    background:
      repeating-linear-gradient(45deg,rgba(22,224,184,.16) 0 8px,rgba(22,224,184,.04) 8px 16px);
    border:1px solid rgba(22,224,184,.3);
    color:var(--primary);font-size:12px;font-weight:700;letter-spacing:1px;
  }
  .qr-box span{display:block;font-size:13px;color:var(--text-3)}
  .verify-line{
    margin-top:22px;padding-top:18px;border-top:1px solid var(--line);
    font-size:13px;color:var(--text-3);
  }

  /* ---------- 页脚 ---------- */
  .site-footer{position:relative;background:#05090A;border-top:1px solid var(--line);margin-top:80px}
  .site-footer::before{
    content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
    background:linear-gradient(90deg,transparent,var(--primary),transparent);opacity:.6;
  }
  .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding:64px 0 40px}
  .footer-brand p{margin-top:18px;max-width:340px;color:var(--text-3);font-size:14px;line-height:1.85}
  .footer-col h4{font-size:14px;margin-bottom:16px;letter-spacing:.5px;color:var(--text)}
  .footer-col ul{display:grid;gap:11px}
  .footer-col a,.footer-col span{font-size:14px;color:var(--text-3);transition:color .25s ease}
  .footer-col a:hover{color:var(--primary)}
  .footer-bottom{
    display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;
    padding:20px 0 34px;border-top:1px solid var(--line);
    font-size:13px;color:var(--text-3);
  }

  /* ---------- 响应式 ---------- */
  @media (max-width:1180px){
    .nav-link{padding:8px 10px;font-size:13.5px}
  }
  @media (max-width:1023px){
    .nav-links,.nav-cta{display:none}
    .menu-toggle{display:inline-flex}
    .hero{padding:36px 0 56px}
    .hero-grid{grid-template-columns:1fr;gap:40px}
    .hero h1{font-size:32px}
    .section{padding:64px 0}
    .section-head h2{font-size:24px}
    .prep-grid{grid-template-columns:repeat(2,1fr)}
    .stat-strip{grid-template-columns:repeat(2,1fr)}
    .checklist{grid-template-columns:1fr;padding:26px 24px}
    .cta-inner{grid-template-columns:1fr;gap:28px}
    .cta-band{padding:38px}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:52px 0 32px}
    .device-tag{left:14px}
  }
  @media (max-width:767px){
    .container{padding:0 16px}
    .section{padding:48px 0}
    .hero h1{font-size:28px}
    .hero-lead{font-size:15px}
    .hero-actions{flex-direction:column;align-items:stretch}
    .hero-actions .btn{width:100%}
    .prep-grid{grid-template-columns:1fr}
    .stat-strip{grid-template-columns:1fr 1fr}
    .stat{padding:20px}
    .stat b{font-size:20px}
    .tl-item{grid-template-columns:44px 1fr;gap:16px}
    .tl-num{width:44px;height:44px;border-radius:13px;font-size:14px}
    .timeline::before{left:21px}
    .tl-card{padding:22px 20px}
    .faq-q{padding:18px 20px;font-size:15.5px}
    .faq-a{padding:0 20px 20px}
    .cta-band{padding:28px 22px}
    .cta-actions .btn{width:100%}
    .footer-grid{grid-template-columns:1fr;gap:28px}
    .footer-bottom{flex-direction:column}
  }
  @media (max-width:520px){
    .stat-strip{grid-template-columns:1fr}
    .brand-text em{display:none}
  }
  @media (prefers-reduced-motion:reduce){
    *{animation-duration:.001ms !important;transition-duration:.001ms !important}
    html{scroll-behavior:auto}
  }

/* roulang page: category3 */
*,*::before,*::after{box-sizing:border-box}
:root{
  --bg:#070B0C;
  --surface:#121A1C;
  --surface-2:#1A2426;
  --line:rgba(255,255,255,.08);
  --primary:#16E0B8;
  --accent:#FF8A3D;
  --violet:#6A5CFF;
  --text:#F2F7F6;
  --text-2:#A8B7B5;
  --text-3:#6E8180;
  --r-s:10px;
  --r-m:14px;
  --r-l:20px;
  --container:1200px;
  --shadow-card:0 0 0 1px rgba(22,224,184,.10), 0 18px 40px -26px rgba(0,0,0,.9);
  --shadow-hover:0 0 0 1px rgba(22,224,184,.28), 0 22px 46px -24px rgba(0,0,0,.92);
  --ease:cubic-bezier(.22,.61,.36,1);
}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"HarmonyOS Sans",MiSans,"Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:rgba(7,11,12,.68);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background .3s var(--ease),border-color .3s var(--ease);
}
.site-header.is-scrolled{background:rgba(7,11,12,.96);border-bottom-color:var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:36px;height:36px;display:grid;place-items:center;
  font-weight:800;font-size:13px;letter-spacing:.02em;color:#04211C;
  background:linear-gradient(140deg,#4BF0CB,#0FA98C);
  clip-path:polygon(9px 0,100% 0,100% calc(100% - 9px),calc(100% - 9px) 100%,0 100%,0 9px);
  transition:transform .4s var(--ease);
}
.brand:hover .brand-mark{transform:rotate(-4deg) scale(1.04)}
.brand-text{font-weight:800;font-size:16.5px;letter-spacing:.01em;display:inline-flex;align-items:baseline;gap:6px}
.brand-text em{
  font-style:normal;font-weight:500;font-size:12.5px;color:var(--text-2);
  padding:2px 8px;border:1px solid var(--line);border-radius:999px;
  background:rgba(255,255,255,.03);
}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-link{
  position:relative;padding:8px 14px;border-radius:999px;
  font-size:14.5px;color:var(--text-2);
  transition:color .25s var(--ease),background .25s var(--ease),box-shadow .25s var(--ease);
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-link.is-active{
  color:var(--primary);background:rgba(22,224,184,.10);
  box-shadow:inset 0 0 0 1px rgba(22,224,184,.24);
}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 20px;border-radius:999px;font-size:14.5px;font-weight:600;
  color:#1A0E04;background:var(--accent);
  transition:transform .25s var(--ease),filter .25s var(--ease),box-shadow .25s var(--ease);
}
.nav-cta:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 12px 26px -14px rgba(255,138,61,.85)}
.nav-cta:active{transform:translateY(1px)}
.nav-toggle{
  display:none;width:42px;height:38px;border-radius:var(--r-s);
  border:1px solid var(--line);background:rgba(255,255,255,.03);
  flex-direction:column;justify-content:center;align-items:center;gap:4px;
  transition:border-color .25s var(--ease),background .25s var(--ease);
}
.nav-toggle:hover{border-color:rgba(22,224,184,.45);background:rgba(22,224,184,.08)}
.nav-toggle span{display:block;width:17px;height:2px;background:var(--text);border-radius:2px;transition:transform .3s var(--ease)}

/* ---------- 移动抽屉 ---------- */
.mobile-drawer{
  position:fixed;inset:0;z-index:80;
  background:rgba(5,9,10,.98);
  backdrop-filter:blur(10px);
  display:flex;flex-direction:column;gap:22px;
  padding:22px 22px 40px;
  transform:translateY(-102%);
  transition:transform .38s var(--ease);
  overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateY(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between}
.drawer-close{
  width:42px;height:42px;border-radius:50%;font-size:22px;line-height:1;
  border:1px solid var(--line);color:var(--text-2);
  transition:color .25s var(--ease),border-color .25s var(--ease),background .25s var(--ease);
}
.drawer-close:hover{color:var(--primary);border-color:rgba(22,224,184,.5);background:rgba(22,224,184,.08)}
.drawer-nav{display:flex;flex-direction:column;gap:6px}
.drawer-nav a{
  padding:15px 16px;border-radius:var(--r-m);font-size:16px;font-weight:600;
  color:var(--text-2);border:1px solid transparent;
  transition:color .25s var(--ease),background .25s var(--ease),border-color .25s var(--ease);
}
.drawer-nav a:hover{color:var(--text);background:rgba(255,255,255,.04)}
.drawer-nav a.is-active{color:var(--primary);background:rgba(22,224,184,.10);border-color:rgba(22,224,184,.24)}
.drawer-cta{width:100%;margin-top:auto}
body.menu-open{overflow:hidden}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:12px;font-size:15px;font-weight:600;
  transition:transform .25s var(--ease),filter .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
  will-change:transform;
}
.btn-primary{background:var(--accent);color:#1A0E04}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 16px 34px -16px rgba(255,138,61,.85)}
.btn-primary:active{transform:translateY(1px)}
.btn-outline{border:1px solid rgba(22,224,184,.5);color:var(--primary);background:rgba(22,224,184,.04)}
.btn-outline:hover{background:rgba(22,224,184,.12);transform:translateY(-1px);box-shadow:0 14px 30px -18px rgba(22,224,184,.7)}
.btn-outline:active{transform:translateY(1px)}
.btn-ghost{color:var(--text-2);padding:14px 10px}
.btn-ghost span{position:relative}
.btn-ghost span::after{
  content:"";position:absolute;left:0;right:0;bottom:-3px;height:1px;
  background:currentColor;transform:scaleX(0);transform-origin:left;
  transition:transform .3s var(--ease);
}
.btn-ghost:hover{color:var(--primary)}
.btn-ghost:hover span::after{transform:scaleX(1)}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}
.btn-sm{padding:10px 20px;font-size:14px;border-radius:10px}

/* ---------- 页面头部 ---------- */
.page-hero{position:relative;padding:136px 0 68px;overflow:hidden;border-bottom:1px solid var(--line)}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center 30%;
  opacity:.3;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(58% 76% at 10% 14%,rgba(22,224,184,.18),transparent 62%),
    radial-gradient(40% 60% at 92% 88%,rgba(106,92,255,.14),transparent 65%),
    linear-gradient(180deg,rgba(7,11,12,.62) 0%,rgba(7,11,12,.9) 62%,var(--bg) 100%);
}
.page-hero .container{position:relative;z-index:2}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--text-3);margin-bottom:18px;flex-wrap:wrap}
.breadcrumb a{transition:color .25s var(--ease)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{opacity:.5}
.breadcrumb .current{color:var(--text-2)}
.page-hero h1{
  font-size:clamp(28px,4.2vw,40px);line-height:1.25;font-weight:800;letter-spacing:-.01em;
  max-width:22ch;
}
.page-hero h1 .hl{color:var(--primary)}
.hero-lead{margin-top:18px;max-width:62ch;color:var(--text-2);font-size:16.5px;line-height:1.85}
.hero-stats{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-stat{
  display:flex;flex-direction:column;gap:2px;
  padding:14px 22px;border-radius:var(--r-m);
  background:rgba(18,26,28,.75);
  border:1px solid var(--line);
  min-width:150px;
  transition:border-color .35s var(--ease),transform .35s var(--ease);
}
.hero-stat:hover{border-color:rgba(22,224,184,.42);transform:translateY(-2px)}
.hero-stat b{font-size:22px;font-weight:800;color:var(--primary);letter-spacing:-.01em}
.hero-stat span{font-size:13px;color:var(--text-3)}

/* ---------- 板块 ---------- */
.section{padding:80px 0;position:relative}
.section-alt{background:linear-gradient(180deg,rgba(18,26,28,.55),rgba(7,11,12,0) 70%)}
.section-head{max-width:780px;margin-bottom:38px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.14em;color:var(--primary);
  padding:5px 12px;border-radius:999px;
  background:rgba(22,224,184,.09);border:1px solid rgba(22,224,184,.22);
  margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;background:var(--primary);border-radius:50%;box-shadow:0 0 10px rgba(22,224,184,.9)}
.section-title{font-size:clamp(23px,2.7vw,28px);line-height:1.28;font-weight:800;letter-spacing:-.01em}
.section-desc{margin-top:14px;color:var(--text-2);font-size:15.5px;line-height:1.85}

/* ---------- 对照卡 ---------- */
.compare-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.compare-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-m);
  overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .5s var(--ease),border-color .5s var(--ease),box-shadow .5s var(--ease);
}
.compare-card:hover{transform:translateY(-2px);border-color:rgba(22,224,184,.42);box-shadow:var(--shadow-hover)}
.compare-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--surface-2)}
.compare-media img{width:100%;height:100%;object-fit:cover;transition:transform .7s var(--ease)}
.compare-card:hover .compare-media img{transform:scale(1.03)}
.compare-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,12,.15),rgba(7,11,12,.85));
}
.compare-num{
  position:absolute;left:16px;bottom:12px;z-index:2;
  font-size:26px;font-weight:800;color:rgba(255,255,255,.9);letter-spacing:-.02em;
}
.compare-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:12px}
.compare-title{font-size:17.5px;font-weight:700}
.compare-item{
  display:flex;gap:10px;padding:11px 13px;border-radius:var(--r-s);
  font-size:14.5px;line-height:1.7;border:1px solid transparent;
}
.compare-item .mark{
  flex-shrink:0;width:20px;height:20px;border-radius:50%;
  display:grid;place-items:center;font-size:12px;font-weight:800;margin-top:3px;
}
.compare-item.good{background:rgba(22,224,184,.07);border-color:rgba(22,224,184,.20);color:var(--text)}
.compare-item.good .mark{background:rgba(22,224,184,.2);color:var(--primary)}
.compare-item.bad{background:rgba(255,138,61,.06);border-color:rgba(255,138,61,.22);color:var(--text-2)}
.compare-item.bad .mark{background:rgba(255,138,61,.2);color:var(--accent)}
.compare-item em{font-style:normal;font-weight:700;margin-right:6px}
.compare-item.good em{color:var(--primary)}
.compare-item.bad em{color:var(--accent)}

/* ---------- 规格速查 ---------- */
.spec-list{
  border:1px solid var(--line);border-radius:var(--r-m);
  background:var(--surface);overflow:hidden;
}
.spec-head,.spec-row{display:grid;grid-template-columns:1.05fr 1.25fr 1.45fr;gap:18px;padding:16px 22px}
.spec-head{background:var(--surface-2);font-size:12.5px;letter-spacing:.1em;color:var(--text-3);border-bottom:1px solid var(--line)}
.spec-row{border-top:1px solid var(--line);font-size:14.5px;transition:background .3s var(--ease)}
.spec-row:first-of-type{border-top:0}
.spec-row:hover{background:rgba(22,224,184,.045)}
.spec-row span{color:var(--text-2);line-height:1.75}
.spec-row .spec-key{color:var(--text);font-weight:700}
.spec-row .spec-fix{color:var(--primary)}

/* ---------- 设备规格卡 ---------- */
.device-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.device-card{
  position:relative;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-m);padding:24px 22px;
  transition:transform .5s var(--ease),border-color .5s var(--ease),box-shadow .5s var(--ease);
}
.device-card::before{
  content:"";position:absolute;left:22px;top:0;width:56px;height:3px;border-radius:0 0 3px 3px;
  background:linear-gradient(90deg,var(--primary),rgba(22,224,184,0));
}
.device-card:hover{transform:translateY(-2px);border-color:rgba(22,224,184,.42);box-shadow:var(--shadow-hover)}
.device-head{display:flex;align-items:center;gap:10px;margin-bottom:6px}
.device-head h3{font-size:17px;font-weight:700}
.device-tag{
  font-size:12px;color:var(--text-3);border:1px solid var(--line);
  border-radius:999px;padding:2px 10px;background:rgba(255,255,255,.02);
}
.spec-kv{display:flex;align-items:baseline;justify-content:space-between;gap:14px;padding:12px 0;border-bottom:1px dashed rgba(255,255,255,.08);font-size:14.5px}
.spec-kv:last-child{border-bottom:0}
.spec-kv dt{color:var(--text-3);white-space:nowrap}
.spec-kv dd{margin:0;font-weight:700;color:var(--text);text-align:right;font-variant-numeric:tabular-nums}
.spec-kv dd.hot{color:var(--accent)}

/* ---------- 准备清单 ---------- */
.prep-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.prep-card{
  background:linear-gradient(160deg,var(--surface-2),var(--surface));
  border:1px solid var(--line);border-radius:var(--r-m);padding:22px 20px;
  transition:transform .5s var(--ease),border-color .5s var(--ease),box-shadow .5s var(--ease);
}
.prep-card:hover{transform:translateY(-2px);border-color:rgba(22,224,184,.4);box-shadow:var(--shadow-card)}
.prep-idx{
  display:inline-grid;place-items:center;width:30px;height:30px;margin-bottom:14px;
  font-size:13px;font-weight:800;color:var(--primary);
  background:rgba(22,224,184,.1);border:1px solid rgba(22,224,184,.28);
  clip-path:polygon(8px 0,100% 0,100% calc(100% - 8px),calc(100% - 8px) 100%,0 100%,0 8px);
}
.prep-card h3{font-size:16px;font-weight:700;margin-bottom:8px}
.prep-card p{font-size:14px;color:var(--text-2);line-height:1.8}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:920px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-m);
  overflow:hidden;
  transition:border-color .3s var(--ease),background .3s var(--ease);
}
.faq-item:hover{border-color:rgba(22,224,184,.3)}
.faq-item[open]{border-color:rgba(22,224,184,.42);border-left:3px solid var(--primary);background:rgba(22,224,184,.035)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 22px;font-size:16px;font-weight:700;line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;
  display:grid;place-items:center;font-size:16px;font-weight:700;
  color:var(--text-2);border:1px solid var(--line);
  transition:transform .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease);
}
.faq-item[open] .faq-icon{transform:rotate(45deg);color:var(--primary);border-color:rgba(22,224,184,.5)}
.faq-body{padding:0 22px 20px;color:var(--text-2);font-size:15px;line-height:1.85;max-width:78ch}
.faq-body strong{color:var(--text);font-weight:700}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border:1px solid rgba(22,224,184,.26);
  border-radius:var(--r-l);
  background:linear-gradient(120deg,#162123,#101819 62%);
  padding:48px 44px;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
  opacity:.16;
}
.cta-band::after{
  content:"";position:absolute;top:-60%;left:-10%;width:60%;height:200%;
  background:radial-gradient(circle,rgba(22,224,184,.22),transparent 65%);
  pointer-events:none;
}
.cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:32px;align-items:center;justify-content:space-between}
.cta-copy{max-width:60ch}
.cta-copy h2{font-size:clamp(22px,2.6vw,27px);font-weight:800;line-height:1.3}
.cta-copy p{margin-top:12px;color:var(--text-2);font-size:15.5px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.cta-note{margin-top:22px;position:relative;z-index:2;font-size:13px;color:var(--text-3);display:flex;flex-wrap:wrap;gap:18px}
.cta-note span{display:inline-flex;align-items:center;gap:6px}
.cta-note span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);opacity:.8}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:80px;background:#05090A;border-top:1px solid var(--line);position:relative}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(22,224,184,.85),rgba(106,92,255,.5),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.1fr;gap:36px;padding:58px 0 42px}
.footer-brand p{margin-top:16px;color:var(--text-2);font-size:14px;line-height:1.85;max-width:40ch}
.footer-col h4{font-size:14.5px;font-weight:700;margin-bottom:16px;color:var(--text)}
.footer-col li{margin-bottom:10px}
.footer-col a,.footer-col span{font-size:14px;color:var(--text-3);transition:color .25s var(--ease)}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;
  padding:20px 0 34px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .nav-links,.nav-cta{display:none}
  .nav-toggle{display:flex}
  .compare-grid{grid-template-columns:repeat(2,1fr)}
  .device-grid{grid-template-columns:repeat(2,1fr)}
  .prep-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding:64px 0}
  .page-hero{padding:120px 0 56px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .header-inner{height:56px}
  .brand-text{font-size:15px}
  .brand-text em{display:none}
  .compare-grid,.device-grid,.prep-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:44px 0 30px}
  .section{padding:48px 0}
  .page-hero{padding:104px 0 44px}
  .page-hero h1{max-width:none}
  .hero-stat{flex:1 1 140px;min-width:0}
  .spec-head{display:none}
  .spec-row{grid-template-columns:1fr;gap:8px;padding:16px 18px}
  .spec-row span{display:block;font-size:14px}
  .spec-row span::before{
    content:attr(data-label) "：";
    color:var(--text-3);font-weight:600;font-size:12.5px;
    display:block;margin-bottom:2px;
  }
  .spec-row .spec-key::before{color:var(--text-3)}
  .cta-band{padding:32px 22px}
  .cta-inner{gap:22px}
  .faq-item summary{padding:16px 18px;font-size:15.5px}
  .faq-body{padding:0 18px 18px}
}
@media (max-width:520px){
  .cta-actions{flex-direction:column;align-items:stretch;width:100%}
  .cta-actions .btn{width:100%}
  .hero-stats{gap:10px}
  .brand-text{font-size:14.5px}
}