/* roulang page: index */
:root{
  --bg-0:#070B0F;
  --bg-1:#0E1620;
  --bg-2:#152330;
  --panel:rgba(16,28,38,.72);
  --line:rgba(120,255,220,.16);
  --line-strong:rgba(25,230,179,.42);
  --primary:#19E6B3;
  --primary-deep:#0EA5A0;
  --accent:#FF7A2F;
  --accent-2:#FFB020;
  --text-0:#F2F7F6;
  --text-1:#B8C7C5;
  --text-2:#7C8F8D;
  --success:#34D399;
  --warning:#F59E0B;
  --danger:#F43F5E;
  --r-sm:12px;
  --r-md:16px;
  --r-lg:22px;
  --shadow:0 12px 32px rgba(0,0,0,.38);
  --glow:0 0 0 1px rgba(25,230,179,.18), 0 0 24px rgba(25,230,179,.12);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.78;
  color:var(--text-1);
  background:
    radial-gradient(1100px 620px at 12% -6%, rgba(25,230,179,.10), transparent 62%),
    radial-gradient(900px 520px at 92% 6%, rgba(255,122,47,.09), transparent 60%),
    var(--bg-0);
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--text-1);text-decoration:none;transition:color .22s ease,opacity .22s ease;}
a:hover{color:var(--primary);}
h1,h2,h3,h4{margin:0;color:var(--text-0);line-height:1.28;font-weight:700;letter-spacing:.2px;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}
.tnum{font-variant-numeric:tabular-nums;}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  background:rgba(255,255,255,.045);
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:background .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.site-header.is-solid{
  background:rgba(7,11,15,.95);
  border-bottom-color:var(--line);
  box-shadow:0 10px 30px rgba(0,0,0,.45);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:74px;}
.brand{display:flex;align-items:center;gap:11px;color:var(--text-0);font-weight:800;font-size:18px;letter-spacing:.4px;}
.brand:hover{color:var(--text-0);}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;display:grid;place-items:center;
  border-radius:12px;font-size:18px;font-weight:800;color:#04221A;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  box-shadow:0 0 22px rgba(25,230,179,.35);
}
.brand-text{white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;padding:9px 14px;border-radius:999px;
  font-size:15px;color:var(--text-1);white-space:nowrap;
}
.nav-link:hover{color:var(--text-0);background:rgba(255,255,255,.06);}
.nav-link.active{color:var(--primary);background:rgba(25,230,179,.10);}
.nav-link.active::after{
  content:"";position:absolute;left:50%;bottom:-1px;transform:translateX(-50%);
  width:22px;height:2px;border-radius:2px;background:var(--primary);
  box-shadow:0 0 10px rgba(25,230,179,.8);
}
.nav-actions{display:flex;align-items:center;gap:12px;}
.hamburger{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:rgba(255,255,255,.05);
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.hamburger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text-0);transition:transform .25s ease,opacity .25s ease;}
.hamburger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.hamburger.is-open span:nth-child(2){opacity:0;}
.hamburger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.mobile-drawer{
  display:none;overflow:hidden;
  border-top:1px solid var(--line);
  background:rgba(7,11,15,.97);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
}
.mobile-drawer.open{display:block;animation:drawerIn .28s ease;}
@keyframes drawerIn{from{opacity:0;transform:translateY(-10px);}to{opacity:1;transform:translateY(0);}}
.drawer-inner{padding:14px 20px 22px;display:flex;flex-direction:column;gap:6px;}
.drawer-link{
  padding:13px 14px;border-radius:14px;font-size:15.5px;color:var(--text-1);
  border:1px solid transparent;
}
.drawer-link:hover,.drawer-link.active{
  color:var(--primary);background:rgba(25,230,179,.09);border-color:var(--line);
}
.drawer-cta{margin-top:10px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:999px;font-size:15.5px;font-weight:700;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .25s ease,border-color .25s ease;
}
.btn:hover{transform:translateY(-2px);}
.btn:active{transform:scale(.98);}
.btn-primary{
  color:#04221A;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  box-shadow:0 10px 26px rgba(25,230,179,.28);
}
.btn-primary:hover{color:#04221A;box-shadow:0 14px 32px rgba(25,230,179,.42);}
.btn-ghost{
  color:var(--text-0);
  background:rgba(255,255,255,.05);
  border-color:var(--line);
}
.btn-ghost:hover{color:var(--primary);border-color:var(--line-strong);background:rgba(25,230,179,.08);}
.btn-ember{
  color:#231005;
  background:linear-gradient(135deg,var(--accent-2),var(--accent));
  box-shadow:0 10px 26px rgba(255,122,47,.28);
}
.btn-ember:hover{color:#231005;box-shadow:0 14px 32px rgba(255,122,47,.42);}
.btn-sm{padding:10px 20px;font-size:14.5px;}
.btn-block{width:100%;}

/* ---------- 标签 / 徽章 ---------- */
.tag{
  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(25,230,179,.10);border:1px solid var(--line);
}
.tag-ember{color:var(--accent-2);background:rgba(255,176,32,.10);border-color:rgba(255,176,32,.28);}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:4px 11px;border-radius:999px;
  font-size:12.5px;color:var(--text-1);background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.10);
}
.badge-neon{color:var(--primary);background:rgba(25,230,179,.10);border-color:var(--line);}
.dot{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 8px rgba(25,230,179,.9);}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  padding:150px 0 74px;
  background:var(--bg-0);
}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.30;
}
.hero-mask{
  position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(7,11,15,.72) 0%,rgba(7,11,15,.90) 55%,var(--bg-0) 100%),
    linear-gradient(90deg,rgba(7,11,15,.92) 0%,rgba(7,11,15,.35) 62%,rgba(7,11,15,.85) 100%);
}
.hero-grid-lines{
  position:absolute;inset:0;opacity:.5;
  background-image:
    linear-gradient(rgba(25,230,179,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(25,230,179,.055) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 50% 32%,#000 0%,transparent 76%);
  -webkit-mask-image:radial-gradient(circle at 50% 32%,#000 0%,transparent 76%);
}
.hero-scan{
  position:absolute;left:0;right:0;height:140px;top:-140px;
  background:linear-gradient(180deg,transparent,rgba(25,230,179,.09),transparent);
  animation:scanMove 7.5s linear infinite;
}
@keyframes scanMove{0%{top:-140px;}100%{top:110%;}}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.02fr .98fr;gap:54px;align-items:center;
}
.hero-copy h1{
  font-size:clamp(32px,4.4vw,52px);
  line-height:1.2;margin:20px 0 0;letter-spacing:.4px;
}
.hero-copy h1 em{
  font-style:normal;
  background:linear-gradient(120deg,var(--primary),var(--accent-2));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{
  margin-top:18px;font-size:18px;color:var(--text-1);max-width:560px;line-height:1.82;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-trust{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:10px 22px;margin-top:34px;padding-top:24px;border-top:1px dashed var(--line);
}
.trust-item{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--text-1);}
.trust-item b{color:var(--text-0);font-weight:700;}
.trust-ico{
  width:22px;height:22px;flex:0 0 22px;border-radius:7px;display:grid;place-items:center;
  font-size:12px;color:var(--primary);background:rgba(25,230,179,.12);border:1px solid var(--line);
}
.hero-visual{position:relative;}
.hero-shot{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow),var(--glow);
  transform:perspective(1200px) rotateY(-5deg) rotateX(2deg);
}
.hero-shot img{width:100%;height:auto;object-fit:cover;aspect-ratio:16/10;}
.hero-shot::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 45%,rgba(7,11,15,.72) 100%);
}
.float-card{
  position:absolute;left:-18px;bottom:26px;z-index:3;
  padding:14px 18px;border-radius:var(--r-md);
  background:rgba(16,28,38,.9);border:1px solid var(--line);
  box-shadow:var(--shadow);backdrop-filter:blur(12px);
  min-width:186px;
}
.float-card .fc-label{font-size:12.5px;color:var(--text-2);letter-spacing:.6px;}
.float-card .fc-value{font-size:20px;font-weight:800;color:var(--primary);margin-top:3px;}
.float-card-2{
  position:absolute;right:-12px;top:22px;z-index:3;
  padding:11px 16px;border-radius:999px;font-size:13px;font-weight:700;
  color:#04221A;background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  box-shadow:0 10px 26px rgba(25,230,179,.34);
}

/* ---------- 数据条 ---------- */
.stat-bar{
  position:relative;z-index:3;
  margin-top:-14px;
}
.stat-inner{
  display:grid;grid-template-columns:repeat(5,minmax(0,1fr));
  gap:1px;overflow:hidden;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:rgba(21,35,48,.62);
  backdrop-filter:blur(12px);
}
.stat-cell{padding:22px 20px;background:rgba(11,18,25,.55);text-align:center;}
.stat-cell .sv{font-size:22px;font-weight:800;color:var(--text-0);}
.stat-cell .sv.accent{color:var(--primary);}
.stat-cell .sl{margin-top:5px;font-size:13px;color:var(--text-2);}

/* ---------- 通用板块 ---------- */
.section{position:relative;padding:86px 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head h2{font-size:clamp(24px,3vw,32px);margin-top:14px;}
.section-head p{margin-top:14px;font-size:16.5px;color:var(--text-1);}
.eyebrow{font-size:13px;letter-spacing:2.4px;color:var(--primary);text-transform:uppercase;font-weight:700;}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line),transparent);}

/* ---------- 卡片 ---------- */
.card{
  position:relative;padding:26px;border-radius:var(--r-lg);
  background:var(--panel);border:1px solid var(--line);
  backdrop-filter:blur(10px);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow),var(--glow);}
.card h3{font-size:19px;margin-bottom:10px;}
.card p{font-size:15.5px;color:var(--text-1);}
.card-ico{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  font-size:20px;margin-bottom:16px;
  background:rgba(25,230,179,.12);border:1px solid var(--line);color:var(--primary);
}

/* ---------- 核心能力：1 大 2 小 ---------- */
.value-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:22px;align-items:stretch;}
.value-side{display:grid;grid-template-rows:1fr 1fr;gap:22px;}
.value-main{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  border:1px solid var(--line);background:var(--panel);
  display:flex;flex-direction:column;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.value-main:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow),var(--glow);}
.value-main img{width:100%;height:238px;object-fit:cover;}
.value-main .vm-body{padding:26px;}
.value-main .vm-body h3{font-size:22px;margin-bottom:12px;}
.value-main .vm-body p{font-size:15.5px;}
.mini-list{margin-top:18px;display:grid;gap:9px;}
.mini-list li{display:flex;gap:9px;font-size:14.5px;color:var(--text-1);}
.mini-list li::before{
  content:"";width:6px;height:6px;margin-top:9px;flex:0 0 6px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 8px rgba(25,230,179,.85);
}

/* ---------- 轮播 ---------- */
.shot-wrap{position:relative;}
.shot-track{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:6px 4px 22px;margin:0 -4px;
  scrollbar-width:none;-ms-overflow-style:none;
}
.shot-track::-webkit-scrollbar{display:none;}
.shot-item{
  flex:0 0 clamp(260px,32%,380px);scroll-snap-align:start;
  border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);background:var(--bg-1);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.shot-item:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow);}
.shot-item img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.shot-cap{padding:14px 18px;font-size:14px;color:var(--text-1);display:flex;justify-content:space-between;gap:10px;align-items:center;}
.shot-cap b{color:var(--text-0);font-weight:700;}
.shot-nav{display:flex;align-items:center;gap:12px;justify-content:flex-end;margin-top:6px;}
.shot-arrow{
  width:44px;height:44px;border-radius:50%;display:grid;place-items:center;
  border:1px solid var(--line);background:rgba(255,255,255,.05);color:var(--text-0);font-size:17px;
  transition:background .2s ease,border-color .2s ease,color .2s ease,transform .2s ease;
}
.shot-arrow:hover{background:rgba(25,230,179,.12);border-color:var(--line-strong);color:var(--primary);transform:translateY(-2px);}
.shot-dots{display:flex;gap:7px;margin-right:auto;}
.shot-dot{width:9px;height:9px;border-radius:50%;background:rgba(255,255,255,.18);transition:background .2s ease,width .2s ease;}
.shot-dot.active{width:26px;border-radius:999px;background:var(--primary);}

/* ---------- 系统要求 ---------- */
.spec-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
.spec-panel{
  padding:26px;border-radius:var(--r-lg);
  background:var(--panel);border:1px solid var(--line);
}
.spec-panel h3{display:flex;align-items:center;gap:10px;font-size:19px;margin-bottom:6px;}
.spec-panel h3 .badge{margin-left:auto;}
.spec-list{margin-top:16px;border-top:1px solid rgba(255,255,255,.07);}
.spec-row{
  display:grid;grid-template-columns:110px 1fr;gap:16px;
  padding:12px 10px;border-bottom:1px solid rgba(255,255,255,.05);
  border-radius:8px;transition:background .2s ease;
}
.spec-row:hover{background:rgba(25,230,179,.06);}
.spec-row dt{font-size:14px;color:var(--text-2);}
.spec-row dd{margin:0;font-size:14.5px;color:var(--text-0);}

/* ---------- 评价墙 ---------- */
.review-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.review{
  padding:22px;border-radius:var(--r-md);
  background:var(--panel);border:1px solid var(--line);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.review:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--shadow);}
.review-top{display:flex;align-items:center;gap:12px;}
.avatar{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;display:grid;place-items:center;
  font-weight:800;font-size:16px;color:#04221A;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
}
.avatar.warm{background:linear-gradient(135deg,var(--accent-2),var(--accent));color:#231005;}
.review-name{font-size:15px;color:var(--text-0);font-weight:700;}
.review-meta{font-size:12.5px;color:var(--text-2);}
.stars{margin-left:auto;color:var(--accent-2);font-size:13px;letter-spacing:2px;}
.review p{margin-top:13px;font-size:14.8px;color:var(--text-1);}
.review .badge{margin-top:14px;}

/* ---------- 最新信息（CMS） ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.news-card{
  display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--r-lg);border:1px solid var(--line);
  background:var(--panel);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.news-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow),var(--glow);}
.news-card img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.news-body{padding:20px;display:flex;flex-direction:column;gap:11px;flex:1;}
.news-body h3{font-size:17.5px;line-height:1.5;}
.news-body p{font-size:14.5px;color:var(--text-1);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-foot{display:flex;align-items:center;gap:12px;margin-top:auto;font-size:12.8px;color:var(--text-2);}
.news-foot .go{margin-left:auto;color:var(--primary);font-weight:700;}
.empty-state{
  grid-column:1/-1;text-align:center;padding:56px 24px;
  border-radius:var(--r-lg);border:1px dashed var(--line);background:rgba(16,28,38,.5);
}
.empty-state .es-ico{font-size:30px;color:var(--text-2);}
.empty-state p{margin-top:12px;font-size:15px;color:var(--text-1);}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:920px;}
.faq-item{
  border-radius:var(--r-md);border:1px solid var(--line);
  background:var(--panel);overflow:hidden;
  transition:border-color .22s ease,background .22s ease;
}
.faq-item[open]{border-color:var(--line-strong);background:rgba(20,34,45,.86);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;
  display:flex;align-items:center;gap:14px;
  font-size:16px;font-weight:700;color:var(--text-0);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";margin-left:auto;font-size:20px;font-weight:400;color:var(--primary);
  transition:transform .25s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-answer{padding:0 22px 20px;font-size:14.5px;color:var(--text-1);animation:fadeUp .28s ease;}
@keyframes fadeUp{from{opacity:0;transform:translateY(-6px);}to{opacity:1;transform:translateY(0);}}

/* ---------- 下载 CTA ---------- */
.download{
  position:relative;overflow:hidden;
  border-radius:26px;border:1px solid var(--line);
  padding:52px;
  background:
    linear-gradient(135deg,rgba(25,230,179,.12),rgba(255,122,47,.08) 65%,transparent),
    rgba(11,19,26,.9);
}
.download::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
  opacity:.16;
}
.download-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.25fr .75fr;gap:38px;align-items:center;}
.download h2{font-size:clamp(23px,2.8vw,30px);}
.download p{margin-top:14px;font-size:16px;max-width:560px;}
.dl-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.dl-note{margin-top:20px;display:flex;flex-wrap:wrap;gap:10px 22px;font-size:13.5px;color:var(--text-2);}
.dl-note span{display:flex;align-items:center;gap:7px;}
.qr-box{
  padding:22px;border-radius:var(--r-lg);text-align:center;
  background:rgba(7,11,15,.68);border:1px solid var(--line);
  backdrop-filter:blur(10px);
}
.qr-code{
  width:132px;height:132px;margin:0 auto 14px;border-radius:14px;
  display:grid;place-items:center;color:#04221A;font-weight:800;font-size:13px;text-align:center;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  box-shadow:0 0 26px rgba(25,230,179,.3);
}
.qr-box .qr-t{font-size:14px;color:var(--text-0);font-weight:700;}
.qr-box .qr-s{margin-top:6px;font-size:12.5px;color:var(--text-2);}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:40px;padding:66px 0 26px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(14,22,32,.6),rgba(7,11,15,.98));
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:34px;}
.footer-brand{display:flex;align-items:center;gap:11px;color:var(--text-0);font-weight:800;font-size:17px;}
.footer-desc{margin-top:16px;font-size:14.5px;color:var(--text-1);max-width:330px;}
.footer-domain{margin-top:14px;font-size:13px;color:var(--text-2);letter-spacing:.6px;}
.footer-col h4{font-size:15px;color:var(--text-0);margin-bottom:16px;}
.footer-col ul{display:grid;gap:11px;}
.footer-col a{font-size:14.3px;color:var(--text-1);}
.footer-col a:hover{color:var(--primary);}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.07);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--text-2);
}

/* ---------- 吸底下载条（移动端） ---------- */
.sticky-dl{
  position:fixed;left:0;right:0;bottom:0;z-index:70;display:none;
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  background:rgba(7,11,15,.94);border-top:1px solid var(--line);
  backdrop-filter:blur(14px);
}
.sticky-dl .inner{display:flex;gap:10px;}
.sticky-dl .btn{flex:1;}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .hero-inner{grid-template-columns:1fr;gap:42px;}
  .hero-shot{transform:none;}
  .hero-visual{max-width:620px;}
  .float-card{left:0;}
  .float-card-2{right:8px;}
  .value-grid{grid-template-columns:1fr;}
  .download-inner{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .review-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:860px){
  .nav-links{display:none;}
  .hamburger{display:flex;}
  .nav-actions .btn{display:none;}
  .stat-inner{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stat-cell:last-child{grid-column:1/-1;}
  .spec-grid{grid-template-columns:1fr;}
  .section{padding:64px 0;}
  .hero{padding:126px 0 58px;}
}
@media (max-width:640px){
  body{font-size:16px;}
  .container{padding:0 16px;}
  .hero-copy h1{font-size:29px;}
  .hero-sub{font-size:16.5px;}
  .hero-trust{grid-template-columns:1fr;}
  .review-grid,.news-grid{grid-template-columns:1fr;}
  .download{padding:30px 22px;border-radius:20px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .shot-item{flex:0 0 84%;}
  .sticky-dl{display:block;}
  .site-footer{padding-bottom:96px;}
  .float-card{position:static;margin-top:16px;left:auto;bottom:auto;min-width:0;}
  .float-card-2{display:none;}
}

/* roulang page: article */
:root{
  --bg-0:#070B0F;
  --bg-1:#0E1620;
  --bg-2:#152330;
  --panel:rgba(16,28,38,.72);
  --panel-strong:rgba(21,35,48,.9);
  --line:rgba(120,255,220,.16);
  --line-soft:rgba(255,255,255,.08);
  --primary:#19E6B3;
  --primary-deep:#0EA5A0;
  --accent:#FF7A2F;
  --accent-2:#FFB020;
  --text-0:#F2F7F6;
  --text-1:#B8C7C5;
  --text-2:#7C8F8D;
  --success:#34D399;
  --warning:#F59E0B;
  --danger:#F43F5E;
  --radius-card:18px;
  --radius-panel:22px;
  --shadow-1:0 12px 32px rgba(0,0,0,.38);
  --shadow-2:0 18px 44px rgba(0,0,0,.5);
  --glow:0 0 0 1px rgba(25,230,179,.18), 0 0 24px rgba(25,230,179,.12);
  --container:1200px;
  --font: "PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text-0);
  background-color:var(--bg-0);
  background-image:
    radial-gradient(900px 480px at 12% -6%, rgba(25,230,179,.14), transparent 62%),
    radial-gradient(760px 420px at 92% 4%, rgba(255,122,47,.10), transparent 60%),
    linear-gradient(180deg,#070B0F 0%,#0A1219 45%,#070B0F 100%);
  background-attachment:fixed;
  overflow-x:hidden;
}
body.nav-open{overflow:hidden}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{padding-left:1.2em}
h1,h2,h3,h4{line-height:1.35;font-weight:800;letter-spacing:-.01em}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
::selection{background:rgba(25,230,179,.28);color:#04120E}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
.section{padding:76px 0}
.section-tight{padding:52px 0}
.progress{position:fixed;top:0;left:0;height:3px;width:0;z-index:90;background:linear-gradient(90deg,var(--primary),var(--accent));box-shadow:0 0 14px rgba(25,230,179,.6);transition:width .12s linear}

/* ---------- header / nav ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:70;
  background:rgba(255,255,255,.045);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:background-color .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.site-header.scrolled{background:rgba(7,11,15,.95);box-shadow:0 10px 32px rgba(0,0,0,.48);border-bottom-color:var(--line)}
.header-inner{display:flex;align-items:center;gap:20px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--primary),var(--primary-deep));
  color:#04120E;font-weight:800;font-size:18px;
  box-shadow:var(--glow);
}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.02em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{position:relative;padding:9px 15px;border-radius:999px;font-size:15px;color:var(--text-1)}
.nav-link:hover{color:var(--primary);background:rgba(25,230,179,.09)}
.nav-link.active{color:var(--text-0);background:rgba(25,230,179,.13)}
.nav-link.active::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:18px;height:2px;border-radius:2px;background:var(--primary);
}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;flex-direction:column;
  align-items:center;justify-content:center;gap:4px;
  border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.05);
  transition:border-color .2s ease,background-color .2s ease;
}
.nav-toggle:hover{border-color:rgba(25,230,179,.5)}
.nav-toggle span{width:18px;height:2px;border-radius:2px;background:var(--text-0);transition:transform .24s ease,opacity .24s ease}
body.nav-open .nav-toggle span:nth-child(1){transform:translateY(6px) rotate(45deg)}
body.nav-open .nav-toggle span:nth-child(2){opacity:0}
body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- buttons / badges ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;padding:12px 22px;font-size:15px;font-weight:600;
  border:1px solid transparent;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn:active{transform:scale(.98)}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-deep));color:#04120E;box-shadow:0 8px 24px rgba(25,230,179,.24)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(25,230,179,.36)}
.btn-ghost{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.15);color:var(--text-0)}
.btn-ghost:hover{border-color:rgba(25,230,179,.55);color:var(--primary);transform:translateY(-2px)}
.btn-accent{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#1B0E03;box-shadow:0 8px 24px rgba(255,122,47,.24)}
.btn-accent:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(255,122,47,.34)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-lg{padding:15px 30px;font-size:16.5px}
.btn-block{width:100%}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;
  font-size:12.5px;color:var(--text-1);background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.1);white-space:nowrap;
}
.badge-primary{color:var(--primary);background:rgba(25,230,179,.1);border-color:rgba(25,230,179,.32)}
.badge-accent{color:var(--accent-2);background:rgba(255,176,32,.1);border-color:rgba(255,176,32,.3)}

/* ---------- page banner ---------- */
.page-banner{
  position:relative;padding:126px 0 58px;
  background-image:linear-gradient(180deg,rgba(7,11,15,.82),rgba(7,11,15,.35)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.page-banner::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,15,.2) 0%,rgba(7,11,15,.6) 62%,var(--bg-0) 100%);
  pointer-events:none;
}
.page-banner .container{position:relative;z-index:2}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--text-2);margin-bottom:18px}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:rgba(255,255,255,.22)}
.breadcrumb .current{color:var(--text-1);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-title{font-size:clamp(27px,4vw,44px);margin:14px 0 18px;max-width:900px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 16px;font-size:14px;color:var(--text-2)}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.24)}
.tabular{font-variant-numeric:tabular-nums}

/* ---------- layout ---------- */
.layout{display:grid;grid-template-columns:minmax(0,1fr) 322px;gap:36px;padding:58px 0 24px;align-items:start}
.article-body{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-panel);
  padding:34px 36px;box-shadow:var(--shadow-1);min-width:0;
}
.article-content{max-width:800px;font-size:17.5px;line-height:1.85;color:var(--text-1);word-wrap:break-word}
.article-content > *:first-child{margin-top:0}
.article-content h2{
  font-size:26px;color:var(--text-0);margin:44px 0 16px;padding-left:14px;
  border-left:4px solid var(--primary);scroll-margin-top:96px;
}
.article-content h3{
  font-size:20px;color:var(--text-0);margin:30px 0 12px;padding-left:12px;
  border-left:3px solid rgba(25,230,179,.5);scroll-margin-top:96px;
}
.article-content p{margin:0 0 1.5em}
.article-content a{color:var(--primary);border-bottom:1px dashed rgba(25,230,179,.45)}
.article-content a:hover{color:var(--accent-2);border-color:rgba(255,176,32,.5)}
.article-content ul,.article-content ol{margin:0 0 1.5em;padding-left:1.35em}
.article-content li{margin:.5em 0}
.article-content li::marker{color:var(--primary)}
.article-content blockquote{
  margin:1.6em 0;padding:16px 22px;border-left:3px solid var(--accent);
  background:rgba(255,122,47,.08);border-radius:0 14px 14px 0;color:var(--text-1);
}
.article-content img{border-radius:14px;border:1px solid var(--line);margin:1.6em 0}
.article-content figure{margin:1.8em 0}
.article-content figcaption{font-size:13.5px;color:var(--text-2);text-align:center;margin-top:10px}
.article-content table{width:100%;border-collapse:collapse;margin:1.7em 0;font-size:15px;display:block;overflow-x:auto}
.article-content th,.article-content td{border:1px solid var(--line);padding:11px 14px;text-align:left;vertical-align:top}
.article-content th{background:rgba(25,230,179,.08);color:var(--text-0);white-space:nowrap}
.article-content tbody tr:hover td{background:rgba(255,255,255,.03)}
.article-content code{background:rgba(25,230,179,.11);color:var(--primary);padding:2px 6px;border-radius:6px;font-size:.92em}
.article-content pre{background:rgba(7,11,15,.86);border:1px solid var(--line);border-radius:14px;padding:18px;overflow:auto;margin:1.6em 0}
.article-content pre code{background:none;color:#D7F5EC;padding:0}
.article-content hr{border:0;border-top:1px solid var(--line);margin:2.4em 0}
.article-empty{padding:28px 8px;text-align:center;color:var(--text-1)}
.article-empty .empty-icon{
  width:70px;height:70px;margin:0 auto 20px;border-radius:20px;display:grid;place-items:center;
  font-size:28px;color:var(--primary);
  background:rgba(25,230,179,.1);border:1px solid rgba(25,230,179,.3);box-shadow:var(--glow);
}
.article-empty h2{font-size:24px;margin:0 0 12px;color:var(--text-0)}
.article-empty p{margin:0 auto 24px;max-width:460px;color:var(--text-2);font-size:15.5px}

/* ---------- sidebar ---------- */
.sidebar{display:flex;flex-direction:column;gap:20px}
.sidebar-inner{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-panel);padding:22px;box-shadow:var(--shadow-1)}
.side-title{display:flex;align-items:center;gap:9px;font-size:17px;margin:0 0 16px;color:var(--text-0)}
.side-title::before{content:"";width:3px;height:16px;border-radius:2px;background:var(--primary)}
.toc-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:3px;max-height:340px;overflow:auto}
.toc-list li{margin:0}
.toc-list a{display:block;padding:7px 11px;border-radius:10px;font-size:14.5px;color:var(--text-1);border-left:2px solid transparent;line-height:1.5}
.toc-list a:hover{color:var(--primary);background:rgba(25,230,179,.08)}
.toc-list a.active{color:var(--primary);background:rgba(25,230,179,.12);border-left-color:var(--primary)}
.toc-list .toc-sub a{padding-left:24px;font-size:13.5px;color:var(--text-2)}
.toc-empty{font-size:14px;color:var(--text-2);margin:0}
.hot-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}
.hot-list li{padding-bottom:12px;border-bottom:1px dashed var(--line-soft)}
.hot-list li:last-child{border-bottom:0;padding-bottom:0}
.hot-list a{font-size:14.8px;color:var(--text-1);display:flex;gap:10px;line-height:1.55}
.hot-list a:hover{color:var(--primary)}
.hot-list .idx{color:var(--primary);font-weight:800;font-size:13px;font-variant-numeric:tabular-nums;flex-shrink:0;padding-top:2px}
.side-cta{
  background:linear-gradient(140deg,rgba(25,230,179,.16),rgba(14,165,160,.05)),var(--panel-strong);
  border:1px solid rgba(25,230,179,.28);
}
.side-cta p{margin:0 0 16px;font-size:14.5px;color:var(--text-1)}
.side-facts{list-style:none;margin:0 0 18px;padding:0;display:grid;gap:9px;font-size:13.8px;color:var(--text-2)}
.side-facts li{display:flex;justify-content:space-between;gap:12px;border-bottom:1px dashed var(--line-soft);padding-bottom:8px}
.side-facts li span:last-child{color:var(--text-0);font-weight:600}

/* ---------- section heads ---------- */
.section-head{max-width:760px;margin-bottom:36px}
.section-head h2{font-size:clamp(22px,2.6vw,30px);margin:0 0 12px}
.section-head p{margin:0;color:var(--text-2);font-size:15.5px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:14px;padding:5px 13px;
  border-radius:999px;font-size:12.5px;letter-spacing:.08em;color:var(--primary);
  background:rgba(25,230,179,.1);border:1px solid rgba(25,230,179,.28);
}

/* ---------- post cards ---------- */
.post-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.post-card:hover{transform:translateY(-3px);border-color:rgba(25,230,179,.45);box-shadow:var(--shadow-2)}
.post-card .thumb{height:158px;width:100%;object-fit:cover;filter:saturate(1.05)}
.post-card-body{padding:18px 20px 22px;display:flex;flex-direction:column;flex:1}
.post-card h3{font-size:18px;margin:0 0 10px;color:var(--text-0)}
.post-card p{margin:0 0 16px;font-size:14.5px;color:var(--text-2);flex:1}
.post-meta{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--text-2)}
.post-link{color:var(--primary);font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.post-link:hover{color:var(--accent-2)}

/* ---------- cta panel ---------- */
.cta-panel{
  position:relative;overflow:hidden;border-radius:26px;border:1px solid var(--line);
  background:linear-gradient(135deg,rgba(25,230,179,.15),rgba(14,165,160,.04) 55%,rgba(255,122,47,.1)),var(--bg-1);
  padding:46px;box-shadow:var(--shadow-1);
}
.cta-panel::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(25,230,179,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(25,230,179,.06) 1px,transparent 1px);
  background-size:44px 44px;mask-image:radial-gradient(circle at 78% 30%,#000,transparent 72%);
  -webkit-mask-image:radial-gradient(circle at 78% 30%,#000,transparent 72%);
}
.cta-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.5fr 1fr;gap:36px;align-items:center}
.cta-grid h2{font-size:clamp(22px,2.8vw,30px);margin:0 0 14px}
.cta-grid p{margin:0 0 22px;color:var(--text-1);font-size:15.5px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.cta-side{
  background:rgba(7,11,15,.55);border:1px solid var(--line);border-radius:20px;padding:22px;
}
.cta-side h3{font-size:16px;margin:0 0 14px;color:var(--text-0)}
.cta-side ul{list-style:none;margin:0;padding:0;display:grid;gap:11px;font-size:14px;color:var(--text-2)}
.cta-side ul li{display:flex;justify-content:space-between;gap:12px;border-bottom:1px dashed var(--line-soft);padding-bottom:9px}
.cta-side ul li:last-child{border-bottom:0;padding-bottom:0}
.cta-side ul li span:last-child{color:var(--primary);font-weight:600;font-variant-numeric:tabular-nums}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px;max-width:940px}
.faq-item{background:var(--panel);border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:border-color .22s ease}
.faq-item:hover{border-color:rgba(25,230,179,.4)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;display:flex;justify-content:space-between;
  align-items:center;gap:16px;font-size:16.5px;font-weight:600;color:var(--text-0);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";color:var(--primary);font-size:20px;line-height:1;transition:transform .22s ease}
.faq-item[open] summary::after{content:"−"}
.faq-item .faq-a{padding:0 22px 20px;color:var(--text-1);font-size:15.3px;line-height:1.8}
.faq-a a{color:var(--primary)}

/* ---------- footer ---------- */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);padding:58px 0 24px;margin-top:40px}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:34px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700}
.footer-desc{color:var(--text-2);font-size:14.5px;margin:16px 0 14px;max-width:360px;line-height:1.8}
.footer-domain{font-size:13px;color:var(--primary);letter-spacing:.08em;font-variant-numeric:tabular-nums}
.footer-col h4{font-size:15px;margin:0 0 16px;color:var(--text-0)}
.footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:11px}
.footer-col a{color:var(--text-2);font-size:14.5px}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  margin-top:38px;padding-top:20px;border-top:1px solid var(--line-soft);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;font-size:13px;color:var(--text-2);
}

/* ---------- responsive ---------- */
@media (max-width:1080px){
  .layout{grid-template-columns:minmax(0,1fr) 292px;gap:28px}
  .cta-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
}
@media (max-width:960px){
  .nav-links{
    position:fixed;top:72px;left:0;right:0;margin-left:0;
    flex-direction:column;align-items:stretch;gap:4px;padding:16px 20px 22px;
    background:rgba(7,11,15,.97);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
    border-bottom:1px solid var(--line);box-shadow:0 26px 44px rgba(0,0,0,.55);
    opacity:0;transform:translateY(-10px);pointer-events:none;
    transition:opacity .22s ease,transform .22s ease;max-height:calc(100vh - 72px);overflow:auto;
  }
  body.nav-open .nav-links{opacity:1;transform:translateY(0);pointer-events:auto}
  .nav-link{padding:12px 14px;border-radius:12px;font-size:15.5px}
  .nav-link.active::after{display:none}
  .nav-toggle{display:flex}
  .layout{grid-template-columns:1fr;padding-top:44px}
  .sidebar-inner{position:static}
  .article-body{padding:26px 22px}
  .article-content{font-size:17px}
}
@media (max-width:768px){
  .header-actions .btn-ghost{display:none}
  .section{padding:52px 0}
  .page-banner{padding:112px 0 44px}
  .cta-panel{padding:30px 22px;border-radius:22px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .article-content table{font-size:14px}
}
@media (max-width:560px){
  body{font-size:15.5px}
  .brand-text{font-size:15.5px}
  .brand-mark{width:34px;height:34px;font-size:16px}
  .header-actions .btn-sm{padding:8px 13px;font-size:13px}
  .container{padding:0 16px}
  .article-title{font-size:25px}
  .article-body{padding:22px 18px;border-radius:18px}
  .article-content{font-size:16.5px}
  .article-content h2{font-size:22px}
  .article-content h3{font-size:18.5px}
  .footer-grid{grid-template-columns:1fr}
  .cta-actions .btn{width:100%}
  .article-meta{font-size:13px}
  .breadcrumb .current{max-width:220px}
}

/* roulang page: category1 */
:root{
  --bg-0:#070B0F;
  --bg-1:#0E1620;
  --bg-2:#152330;
  --panel:rgba(16,28,38,.72);
  --panel-2:rgba(21,35,48,.62);
  --line:rgba(120,255,220,.16);
  --line-soft:rgba(255,255,255,.08);
  --primary:#19E6B3;
  --primary-deep:#0EA5A0;
  --accent:#FF7A2F;
  --accent-2:#FFB020;
  --text-0:#F2F7F6;
  --text-1:#B8C7C5;
  --text-2:#7C8F8D;
  --success:#34D399;
  --warning:#F59E0B;
  --danger:#F43F5E;
  --radius-sm:12px;
  --radius:16px;
  --radius-lg:22px;
  --radius-pill:999px;
  --shadow:0 12px 32px rgba(0,0,0,.38);
  --shadow-lg:0 18px 44px rgba(0,0,0,.5);
  --glow:0 0 0 1px rgba(25,230,179,.18),0 0 24px rgba(25,230,179,.12);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--text-1);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary)}
button{font-family:inherit}
h1,h2,h3,h4{color:var(--text-0);margin:0;line-height:1.3;font-weight:700;letter-spacing:.2px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
::selection{background:rgba(25,230,179,.28);color:#fff}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
.nums{font-variant-numeric:tabular-nums}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:rgba(10,18,24,.42);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  border-bottom:1px solid rgba(255,255,255,.07);
  transition:background .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.site-header.scrolled{
  background:rgba(7,11,15,.95);
  border-bottom-color:rgba(255,255,255,.1);
  box-shadow:0 10px 30px rgba(0,0,0,.45);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:72px;gap:20px}
.brand{display:flex;align-items:center;gap:10px;color:var(--text-0);font-weight:700;font-size:18px;letter-spacing:.5px}
.brand:hover{color:var(--primary)}
.brand-mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  color:#04211C;font-weight:800;font-size:16px;
  box-shadow:0 0 18px rgba(25,230,179,.4);
}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-link{
  position:relative;padding:9px 14px;border-radius:10px;font-size:15px;color:var(--text-1);
  transition:color .2s,background .2s;
}
.nav-link:hover{color:var(--text-0);background:rgba(255,255,255,.06)}
.nav-link.active{color:var(--primary);background:rgba(25,230,179,.1)}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--primary-deep));
  box-shadow:0 0 10px rgba(25,230,179,.7);
}
.nav-actions{display:flex;align-items:center;gap:12px}
.nav-cta{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 18px;border-radius:var(--radius-pill);
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  color:#04211C;font-weight:700;font-size:14px;
  box-shadow:0 6px 18px rgba(25,230,179,.28);
  transition:transform .2s,box-shadow .25s;
}
.nav-cta:hover{color:#04211C;transform:translateY(-2px);box-shadow:0 10px 24px rgba(25,230,179,.42)}
.nav-cta:active{transform:scale(.98)}
.burger{
  display:none;width:42px;height:42px;border-radius:12px;
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);
  color:var(--text-0);cursor:pointer;place-items:center;
}
.burger:hover{background:rgba(255,255,255,.1)}
.drawer{
  position:fixed;inset:72px 0 auto 0;z-index:70;
  background:rgba(7,11,15,.97);backdrop-filter:blur(22px);
  border-bottom:1px solid var(--line-soft);
  padding:16px 20px 26px;
  display:none;
  box-shadow:0 24px 40px rgba(0,0,0,.5);
}
.drawer.open{display:block}
.drawer a{
  display:block;padding:14px 16px;border-radius:12px;font-size:16px;color:var(--text-1);
  border:1px solid transparent;
}
.drawer a:hover{background:rgba(255,255,255,.06);color:var(--text-0)}
.drawer a.active{color:var(--primary);background:rgba(25,230,179,.1);border-color:var(--line)}
.drawer-cta{margin-top:12px;display:block;text-align:center;background:linear-gradient(135deg,var(--primary),var(--primary-deep));color:#04211C !important;font-weight:700;border-radius:var(--radius-pill) !important}

/* ============ 通用板块 ============ */
.section{padding:84px 0}
.section-tight{padding:56px 0}
.section-head{max-width:760px;margin-bottom:38px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--radius-pill);
  background:rgba(25,230,179,.1);border:1px solid var(--line);
  color:var(--primary);font-size:13px;font-weight:600;letter-spacing:1px;margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 8px var(--primary)}
h2.sect-title{font-size:clamp(24px,3vw,32px);margin-bottom:14px}
.sect-desc{color:var(--text-1);font-size:16px;line-height:1.85;max-width:720px}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line),transparent);border:0;margin:0}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:700;line-height:1;border:1px solid transparent;
  cursor:pointer;text-decoration:none;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .25s ease,border-color .25s ease;
}
.btn:focus-visible,button:focus-visible,a:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.btn:active{transform:scale(.98)}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-deep));color:#04211C;box-shadow:0 10px 26px rgba(25,230,179,.28)}
.btn-primary:hover{color:#04211C;transform:translateY(-2px);box-shadow:0 14px 32px rgba(25,230,179,.44)}
.btn-ghost{background:rgba(255,255,255,.04);border-color:rgba(255,255,255,.16);color:var(--text-0)}
.btn-ghost:hover{background:rgba(255,255,255,.1);color:var(--text-0);transform:translateY(-2px)}
.btn-accent{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#2A1200;box-shadow:0 10px 26px rgba(255,122,47,.26)}
.btn-accent:hover{color:#2A1200;transform:translateY(-2px);box-shadow:0 14px 32px rgba(255,122,47,.4)}
.btn-sm{padding:9px 18px;font-size:14px}

/* ============ Hero ============ */
.cat-hero{
  position:relative;
  padding:158px 0 76px;
  background-image:
    linear-gradient(180deg,rgba(7,11,15,.78) 0%,rgba(7,11,15,.9) 55%,var(--bg-0) 100%),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(25,230,179,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(25,230,179,.055) 1px,transparent 1px);
  background-size:48px 48px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 88%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 88%);
}
.cat-hero .container{position:relative;z-index:2}
.hero-inner{max-width:800px}
.cat-hero h1{
  font-size:clamp(30px,4.4vw,50px);
  line-height:1.2;margin:0 0 20px;letter-spacing:.4px;
}
.cat-hero h1 .hl{
  background:linear-gradient(120deg,var(--primary),var(--accent-2));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{color:var(--text-1);font-size:clamp(16px,1.6vw,18px);line-height:1.9;max-width:660px;margin-bottom:30px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.trust-strip{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;
  padding:18px 20px;border-radius:var(--radius);
  background:var(--panel);border:1px solid var(--line);
  backdrop-filter:blur(12px);
  box-shadow:var(--shadow);
}
.trust-item{display:flex;flex-direction:column;gap:4px}
.trust-label{font-size:12px;color:var(--text-2);letter-spacing:1px}
.trust-value{font-size:15px;font-weight:700;color:var(--text-0)}
.trust-value.ok{color:var(--primary)}

/* ============ 下载卡片 ============ */
.dl-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:24px;align-items:start}
.dl-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:28px;backdrop-filter:blur(14px);box-shadow:var(--shadow);
}
.plat-tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:24px}
.plat-tab{
  padding:9px 18px;border-radius:var(--radius-pill);font-size:14px;font-weight:600;
  background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.12);
  color:var(--text-1);cursor:pointer;transition:all .22s ease;
}
.plat-tab:hover{color:var(--text-0);background:rgba(255,255,255,.09)}
.plat-tab.is-active{background:rgba(25,230,179,.14);border-color:rgba(25,230,179,.5);color:var(--primary)}
.plat-panel{display:none}
.plat-panel.is-active{display:block;animation:fadeUp .35s ease}
@keyframes fadeUp{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.file-meta{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:20px 0 24px}
.file-meta div{
  padding:14px 16px;border-radius:var(--radius-sm);
  background:rgba(255,255,255,.03);border:1px solid var(--line-soft);
}
.file-meta span{display:block;font-size:12px;color:var(--text-2);margin-bottom:4px;letter-spacing:.5px}
.file-meta b{color:var(--text-0);font-size:15px;font-weight:700}
.dl-actions{display:flex;flex-wrap:wrap;gap:12px}
.hash-box{
  margin-top:20px;padding:14px 16px;border-radius:var(--radius-sm);
  background:rgba(25,230,179,.06);border:1px dashed rgba(25,230,179,.3);
  font-size:13px;color:var(--text-1);word-break:break-all;line-height:1.7;
}
.hash-box b{color:var(--primary)}
.side-card{
  background:var(--panel-2);border:1px solid var(--line-soft);border-radius:var(--radius-lg);
  padding:24px;backdrop-filter:blur(12px);
}
.side-card img{border-radius:var(--radius);margin-bottom:18px;border:1px solid var(--line-soft)}
.side-list li{
  display:flex;gap:10px;align-items:flex-start;padding:11px 0;
  border-bottom:1px dashed rgba(255,255,255,.08);font-size:14px;color:var(--text-1);
}
.side-list li:last-child{border-bottom:0}
.side-list .dot{width:7px;height:7px;border-radius:50%;background:var(--primary);margin-top:8px;flex:none;box-shadow:0 0 8px rgba(25,230,179,.8)}

/* ============ 版本对比 ============ */
.version-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.version-card{
  position:relative;background:var(--panel);border:1px solid var(--line-soft);border-radius:var(--radius-lg);
  padding:26px;display:flex;flex-direction:column;gap:16px;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.version-card:hover{transform:translateY(-3px);border-color:rgba(25,230,179,.45);box-shadow:var(--shadow-lg)}
.version-card.recommend{border-color:rgba(25,230,179,.5);box-shadow:var(--glow)}
.version-tag{
  position:absolute;top:-12px;right:20px;
  padding:5px 14px;border-radius:var(--radius-pill);
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  color:#2A1200;font-size:12px;font-weight:800;letter-spacing:.5px;
}
.version-card h3{font-size:20px}
.version-card .vdesc{font-size:14px;color:var(--text-2);line-height:1.8}
.vlist li{display:flex;gap:9px;font-size:14px;color:var(--text-1);padding:6px 0}
.vlist .tick{color:var(--primary);font-weight:800;flex:none}
.version-card .btn{margin-top:auto}

/* ============ 系统要求 ============ */
.spec-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.spec-panel{
  background:var(--panel);border:1px solid var(--line-soft);border-radius:var(--radius-lg);
  padding:8px 24px;backdrop-filter:blur(12px);
}
.spec-head{display:flex;align-items:center;gap:12px;padding:18px 0 14px;border-bottom:1px solid var(--line-soft)}
.spec-head .ico{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;flex:none;
  background:rgba(25,230,179,.12);border:1px solid var(--line);color:var(--primary);font-weight:800;font-size:14px;
}
.spec-head h3{font-size:17px}
.spec-row{
  display:flex;justify-content:space-between;gap:16px;padding:13px 10px;margin:0 -10px;
  border-bottom:1px dashed rgba(255,255,255,.07);border-radius:10px;
  transition:background .2s ease;
}
.spec-row:last-child{border-bottom:0}
.spec-row:hover{background:rgba(25,230,179,.05)}
.spec-row dt{font-size:14px;color:var(--text-2);flex:none}
.spec-row dd{margin:0;font-size:14px;color:var(--text-0);text-align:right;font-weight:600}

/* ============ 安装流程 ============ */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;position:relative}
.step{
  background:linear-gradient(180deg,rgba(21,35,48,.7),rgba(14,22,32,.5));
  border:1px solid var(--line-soft);border-radius:var(--radius);
  padding:24px 20px;transition:transform .25s,border-color .25s;
}
.step:hover{transform:translateY(-3px);border-color:rgba(25,230,179,.4)}
.step-no{
  display:inline-grid;place-items:center;width:36px;height:36px;border-radius:11px;
  background:linear-gradient(135deg,rgba(25,230,179,.22),rgba(14,165,160,.14));
  border:1px solid var(--line);color:var(--primary);font-weight:800;margin-bottom:14px;
}
.step h3{font-size:16px;margin-bottom:8px}
.step p{font-size:14px;color:var(--text-2);line-height:1.78}

/* ============ 评价 ============ */
.review-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.review-card{
  background:var(--panel);border:1px solid var(--line-soft);border-radius:var(--radius);
  padding:22px;transition:transform .25s,border-color .25s,box-shadow .25s;
}
.review-card:hover{transform:translateY(-2px);border-color:rgba(25,230,179,.4);box-shadow:var(--shadow)}
.review-top{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.avatar{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;flex:none;
  background:linear-gradient(135deg,rgba(25,230,179,.25),rgba(255,122,47,.2));
  border:1px solid var(--line);color:var(--text-0);font-weight:800;
}
.review-name{font-size:15px;color:var(--text-0);font-weight:700}
.review-dev{font-size:12px;color:var(--text-2)}
.stars{color:var(--accent-2);font-size:13px;letter-spacing:2px;margin-left:auto}
.review-card p{font-size:14px;line-height:1.85;color:var(--text-1)}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:var(--panel);border:1px solid var(--line-soft);border-radius:var(--radius);
  overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item:hover{border-color:rgba(25,230,179,.35)}
.faq-item[open]{border-color:rgba(25,230,179,.45);box-shadow:var(--glow)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;display:flex;align-items:center;gap:14px;
  font-size:16px;font-weight:600;color:var(--text-0);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";margin-left:auto;font-size:20px;color:var(--primary);font-weight:400;
  transition:transform .25s ease;line-height:1;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-body{padding:0 22px 20px;font-size:14px;line-height:1.85;color:var(--text-1);animation:fadeUp .3s ease}

/* ============ CTA ============ */
.cta-band{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  padding:52px 40px;
  background-image:linear-gradient(120deg,rgba(7,11,15,.9),rgba(14,22,32,.86)),url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
  border:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(22px,2.6vw,28px);margin-bottom:10px}
.cta-band p{color:var(--text-1);font-size:15px;max-width:520px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{
  background:linear-gradient(180deg,var(--bg-0),#05080B);
  border-top:1px solid var(--line-soft);
  padding:64px 0 26px;margin-top:20px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;color:var(--text-0);font-weight:700;font-size:17px;margin-bottom:14px}
.footer-desc{font-size:14px;color:var(--text-2);line-height:1.85;max-width:340px}
.footer-domain{
  display:inline-block;margin-top:14px;padding:5px 12px;border-radius:var(--radius-pill);
  font-size:12px;color:var(--primary);background:rgba(25,230,179,.08);border:1px solid var(--line);
  letter-spacing:1px;
}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--text-0)}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:var(--text-2)}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.07);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--text-2);
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .dl-grid{grid-template-columns:1fr}
  .version-grid{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .nav-links{display:none}
  .burger{display:grid}
}
@media (max-width:768px){
  .section{padding:60px 0}
  .section-tight{padding:44px 0}
  .cat-hero{padding:130px 0 56px}
  .trust-strip{grid-template-columns:1fr 1fr;gap:16px}
  .spec-grid{grid-template-columns:1fr}
  .review-grid{grid-template-columns:1fr}
  .version-grid{grid-template-columns:1fr}
  .file-meta{grid-template-columns:1fr}
  .cta-band{padding:38px 24px}
  .nav-cta{display:none}
}
@media (max-width:520px){
  .steps{grid-template-columns:1fr}
  .trust-strip{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .cat-hero h1{font-size:28px}
  .hero-actions .btn{width:100%}
  .dl-actions .btn{width:100%}
  .footer-bottom{flex-direction:column}
}

/* roulang page: category2 */
:root{
    --bg-0:#070B0F;
    --bg-1:#0E1620;
    --bg-2:#152330;
    --panel:rgba(16,28,38,.72);
    --line:rgba(120,255,220,.16);
    --line-strong:rgba(255,255,255,.14);
    --primary:#19E6B3;
    --primary-deep:#0EA5A0;
    --accent:#FF7A2F;
    --accent-2:#FFB020;
    --text-0:#F2F7F6;
    --text-1:#B8C7C5;
    --text-2:#7C8F8D;
    --success:#34D399;
    --warning:#F59E0B;
    --danger:#F43F5E;
    --radius-sm:12px;
    --radius:18px;
    --radius-lg:24px;
    --shadow:0 12px 32px rgba(0,0,0,.38);
    --glow:0 0 0 1px rgba(25,230,179,.18), 0 0 24px rgba(25,230,179,.12);
    --container:1200px;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg-0);
    color:var(--text-1);
    font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
    font-size:16.5px;
    line-height:1.78;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  img{max-width:100%;display:block;}
  a{color:var(--text-1);text-decoration:none;transition:color .2s ease,background .2s ease,border-color .2s ease;}
  a:hover{color:var(--primary);}
  button,input,select,textarea{font:inherit;color:inherit;}
  h1,h2,h3,h4{margin:0;color:var(--text-0);line-height:1.25;font-weight:700;letter-spacing:.2px;}
  p{margin:0;}
  ul{margin:0;padding:0;list-style:none;}
  .num{font-variant-numeric:tabular-nums;}

  .container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}

  /* ============ 顶部导航 ============ */
  .site-header{
    position:fixed;top:0;left:0;right:0;z-index:80;
    background:rgba(255,255,255,.045);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    border-bottom:1px solid rgba(255,255,255,.09);
    box-shadow:0 6px 26px rgba(0,0,0,.28);
    transition:background .28s ease,border-color .28s ease,box-shadow .28s ease;
  }
  .site-header.scrolled{
    background:rgba(7,11,15,.95);
    border-bottom-color:rgba(255,255,255,.09);
    box-shadow:0 10px 30px rgba(0,0,0,.45);
  }
  .header-inner{
    display:flex;align-items:center;justify-content:space-between;gap:18px;
    height:72px;
  }
  .brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
  .brand-mark{
    width:36px;height:36px;border-radius:11px;
    display:grid;place-items:center;
    background:linear-gradient(135deg,var(--primary),var(--primary-deep));
    color:#04231d;font-weight:800;font-size:18px;
    box-shadow:0 6px 18px rgba(25,230,179,.28);
  }
  .brand-text{color:var(--text-0);font-size:18px;font-weight:800;letter-spacing:.4px;white-space:nowrap;}
  .brand:hover .brand-text{color:var(--primary);}

  .nav-links{display:flex;align-items:center;gap:2px;}
  .nav-link{
    position:relative;
    padding:9px 15px;border-radius:999px;
    font-size:15px;color:var(--text-1);
    transition:color .2s ease,background .2s ease;
    white-space:nowrap;
  }
  .nav-link:hover{color:var(--text-0);background:rgba(255,255,255,.07);}
  .nav-link.active{color:var(--primary);background:rgba(25,230,179,.10);}
  .nav-link.active::after{
    content:"";position:absolute;left:50%;bottom:3px;transform:translateX(-50%);
    width:18px;height:2px;border-radius:2px;background:var(--primary);
  }

  .header-actions{display:flex;align-items:center;gap:10px;}

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    border-radius:999px;padding:12px 22px;
    font-size:15px;font-weight:600;line-height:1;
    border:1px solid transparent;cursor:pointer;
    transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
    text-decoration:none;
  }
  .btn-sm{padding:9px 17px;font-size:14px;}
  .btn-primary{
    background:linear-gradient(135deg,var(--primary),var(--primary-deep));
    color:#04231d;box-shadow:0 8px 22px rgba(25,230,179,.22);
  }
  .btn-primary:hover{color:#04231d;transform:translateY(-2px);box-shadow:0 12px 28px rgba(25,230,179,.34);}
  .btn-ghost{
    background:rgba(255,255,255,.06);
    border-color:rgba(255,255,255,.16);
    color:var(--text-0);
  }
  .btn-ghost:hover{color:var(--text-0);background:rgba(255,255,255,.12);border-color:rgba(25,230,179,.4);transform:translateY(-2px);}
  .btn-accent{
    background:linear-gradient(135deg,var(--accent),var(--accent-2));
    color:#2a1204;box-shadow:0 8px 22px rgba(255,122,47,.24);
  }
  .btn-accent:hover{color:#2a1204;transform:translateY(-2px);box-shadow:0 12px 28px rgba(255,122,47,.34);}
  .btn:active{transform:scale(.98);}
  .btn:focus-visible,.nav-link:focus-visible,.chip:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}

  .menu-toggle{
    display:none;width:42px;height:42px;border-radius:12px;
    background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);
    cursor:pointer;place-items:center;
  }
  .menu-toggle span{display:block;width:18px;height:2px;background:var(--text-0);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-0);border-radius:2px;}
  .menu-toggle span::before{top:-6px;}
  .menu-toggle span::after{top:6px;}

  .mobile-drawer{
    display:none;
    padding:14px 20px 22px;
    background:rgba(9,15,20,.98);
    backdrop-filter:blur(20px);
    border-bottom:1px solid rgba(255,255,255,.08);
  }
  .mobile-drawer.open{display:block;}
  .mobile-drawer .nav-link{display:block;padding:13px 16px;border-radius:14px;font-size:16px;}
  .mobile-drawer .btn{width:100%;margin-top:12px;}

  /* ============ 通用板块 ============ */
  .section{padding:76px 0;}
  .section-tight{padding:52px 0;}
  .section-alt{background:linear-gradient(180deg,rgba(14,22,32,0) 0%,rgba(14,22,32,.72) 40%,rgba(14,22,32,0) 100%);}
  .section-head{margin-bottom:34px;max-width:760px;}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:12.5px;letter-spacing:1.6px;text-transform:uppercase;
    color:var(--primary);font-weight:700;margin-bottom:12px;
  }
  .eyebrow::before{content:"";width:22px;height:1px;background:var(--primary);opacity:.7;}
  h1{font-size:clamp(30px,4.6vw,52px);}
  .section h2{font-size:clamp(22px,2.6vw,30px);}
  .section-sub{margin-top:12px;color:var(--text-2);font-size:15.5px;max-width:640px;}

  .divider{height:1px;background:var(--line);border:0;margin:0;}

  /* ============ Hero ============ */
  .hero{
    position:relative;overflow:hidden;
    padding:140px 0 66px;
    border-bottom:1px solid var(--line);
  }
  .hero-bg{
    position:absolute;inset:0;
    background-image:url('/assets/images/backpic/back-2.png');
    background-size:cover;background-position:center;
    opacity:.42;
  }
  .hero::after{
    content:"";position:absolute;inset:0;
    background-image:
      linear-gradient(90deg,rgba(25,230,179,.055) 1px,transparent 1px),
      linear-gradient(0deg,rgba(25,230,179,.055) 1px,transparent 1px);
    background-size:56px 56px;
    mask-image:radial-gradient(circle at 30% 20%,#000 0%,transparent 78%);
    -webkit-mask-image:radial-gradient(circle at 30% 20%,#000 0%,transparent 78%);
    pointer-events:none;
  }
  .hero-overlay{
    position:absolute;inset:0;
    background:linear-gradient(120deg,rgba(7,11,15,.94) 0%,rgba(7,11,15,.76) 46%,rgba(21,35,48,.62) 100%);
  }
  .hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;}
  .hero h1{margin-bottom:18px;}
  .hero h1 em{font-style:normal;color:var(--primary);}
  .hero-sub{font-size:18px;color:var(--text-1);max-width:560px;line-height:1.75;}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
  .hero-trust{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px;}
  .trust-badge{
    display:inline-flex;align-items:center;gap:7px;
    padding:7px 14px;border-radius:999px;
    background:rgba(255,255,255,.05);
    border:1px solid rgba(255,255,255,.12);
    font-size:13px;color:var(--text-1);
    font-variant-numeric:tabular-nums;
  }
  .trust-badge b{color:var(--text-0);font-weight:600;}
  .dot{width:7px;height:7px;border-radius:50%;background:var(--success);box-shadow:0 0 10px rgba(52,211,153,.8);flex-shrink:0;}

  .hero-visual{position:relative;}
  .hero-visual img{
    width:100%;border-radius:var(--radius-lg);
    border:1px solid rgba(25,230,179,.22);
    box-shadow:0 24px 60px rgba(0,0,0,.55),0 0 0 1px rgba(25,230,179,.1);
  }
  .hero-float{
    position:absolute;left:-18px;bottom:-22px;
    background:var(--panel);
    backdrop-filter:blur(14px);
    border:1px solid var(--line);
    border-radius:var(--radius);
    padding:14px 18px;
    box-shadow:var(--shadow);
    display:flex;align-items:center;gap:12px;
    min-width:200px;
  }
  .hero-float .num-lg{font-size:24px;font-weight:800;color:var(--primary);font-variant-numeric:tabular-nums;line-height:1.1;}
  .hero-float small{font-size:12.5px;color:var(--text-2);display:block;}

  /* ============ 筛选条 ============ */
  .filter-bar{
    display:flex;flex-wrap:wrap;gap:10px;align-items:center;
    padding:14px;border-radius:var(--radius);
    background:var(--panel);border:1px solid var(--line);
    margin-bottom:34px;
    backdrop-filter:blur(12px);
  }
  .filter-label{font-size:13px;color:var(--text-2);padding:0 8px 0 6px;letter-spacing:.5px;}
  .chip{
    padding:8px 17px;border-radius:999px;
    background:rgba(255,255,255,.045);
    border:1px solid rgba(255,255,255,.12);
    color:var(--text-1);font-size:14px;cursor:pointer;
    transition:all .2s ease;
  }
  .chip:hover{color:var(--text-0);border-color:rgba(25,230,179,.45);background:rgba(25,230,179,.08);}
  .chip.is-active{
    background:linear-gradient(135deg,rgba(25,230,179,.22),rgba(14,165,160,.16));
    border-color:rgba(25,230,179,.6);
    color:var(--primary);font-weight:600;
  }

  /* ============ 卡片 ============ */
  .card{
    position:relative;
    background:var(--panel);
    border:1px solid var(--line);
    border-radius:var(--radius);
    backdrop-filter:blur(12px);
    overflow:hidden;
    transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
    display:flex;flex-direction:column;
  }
  .card:hover{transform:translateY(-2px);border-color:rgba(25,230,179,.45);box-shadow:var(--glow),var(--shadow);}
  .card-media{position:relative;overflow:hidden;background:var(--bg-2);}
  .card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;aspect-ratio:16/9;}
  .card:hover .card-media img{transform:scale(1.045);}
  .card-media::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(7,11,15,0) 42%,rgba(7,11,15,.78) 100%);
  }
  .card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
  .card h3{font-size:19px;}
  .card p{font-size:14.6px;color:var(--text-2);line-height:1.72;}
  .card-meta{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:auto;padding-top:6px;}
  .badge{
    display:inline-flex;align-items:center;gap:6px;
    padding:4px 11px;border-radius:999px;
    font-size:12.5px;letter-spacing:.3px;
    background:rgba(25,230,179,.11);
    border:1px solid rgba(25,230,179,.3);
    color:var(--primary);font-variant-numeric:tabular-nums;
  }
  .badge-flame{background:rgba(255,122,47,.12);border-color:rgba(255,122,47,.34);color:var(--accent-2);}
  .badge-muted{background:rgba(255,255,255,.05);border-color:rgba(255,255,255,.12);color:var(--text-2);}
  .card-link{
    display:inline-flex;align-items:center;gap:6px;
    font-size:14px;font-weight:600;color:var(--primary);
    margin-top:8px;
  }
  .card-link::after{content:"→";transition:transform .22s ease;}
  .card-link:hover::after{transform:translateX(4px);}

  .feature-card{grid-column:span 2;flex-direction:row;}
  .feature-card .card-media{width:52%;flex-shrink:0;}
  .feature-card .card-media img{height:100%;aspect-ratio:auto;min-height:280px;}
  .feature-card .card-body{justify-content:center;padding:28px 30px;gap:14px;}
  .feature-card h3{font-size:24px;}
  .feature-card p{font-size:15.4px;}

  .is-hidden{display:none !important;}

  /* ============ 数据条 ============ */
  .stat-grid{
    display:grid;grid-template-columns:repeat(4,1fr);
    gap:1px;background:var(--line);
    border:1px solid var(--line);border-radius:var(--radius);
    overflow:hidden;
  }
  .stat-item{
    background:rgba(14,22,32,.9);
    padding:26px 22px;
    transition:background .25s ease;
  }
  .stat-item:hover{background:rgba(21,35,48,.95);}
  .stat-item .num-lg{
    font-size:clamp(26px,3vw,34px);font-weight:800;color:var(--primary);
    font-variant-numeric:tabular-nums;line-height:1.1;
  }
  .stat-item span{display:block;font-size:14px;color:var(--text-2);margin-top:8px;}

  /* ============ 流程 ============ */
  .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative;}
  .step{
    position:relative;
    padding:26px 22px 24px;
    border-radius:var(--radius);
    background:var(--panel);
    border:1px solid var(--line);
    backdrop-filter:blur(12px);
    transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
  }
  .step:hover{border-color:rgba(25,230,179,.45);transform:translateY(-2px);box-shadow:var(--glow);}
  .step-num{
    display:inline-grid;place-items:center;
    width:38px;height:38px;border-radius:12px;
    background:linear-gradient(135deg,rgba(25,230,179,.2),rgba(14,165,160,.12));
    border:1px solid rgba(25,230,179,.36);
    color:var(--primary);font-weight:800;font-size:16px;
    font-variant-numeric:tabular-nums;
    margin-bottom:16px;
  }
  .step h3{font-size:17.5px;margin-bottom:8px;}
  .step p{font-size:14.4px;color:var(--text-2);}

  /* ============ FAQ ============ */
  .faq-list{display:grid;gap:12px;max-width:920px;}
  .faq-item{
    border:1px solid var(--line);
    border-radius:var(--radius);
    background:var(--panel);
    backdrop-filter:blur(12px);
    overflow:hidden;
    transition:border-color .25s ease,box-shadow .25s ease;
  }
  .faq-item[open]{border-color:rgba(25,230,179,.42);box-shadow:var(--glow);}
  .faq-item summary{
    list-style:none;cursor:pointer;
    padding:18px 52px 18px 22px;
    position:relative;
    font-size:16px;font-weight:600;color:var(--text-0);
    transition:color .2s ease;
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary::after{
    content:"";position:absolute;right:22px;top:50%;
    width:9px;height:9px;
    border-right:2px solid var(--primary);
    border-bottom:2px solid var(--primary);
    transform:translateY(-70%) rotate(45deg);
    transition:transform .28s ease;
  }
  .faq-item[open] summary::after{transform:translateY(-30%) rotate(-135deg);}
  .faq-item summary:hover{color:var(--primary);}
  .faq-answer{
    padding:0 22px 20px;
    font-size:14.6px;color:var(--text-2);line-height:1.8;
    animation:fadeIn .28s ease;
  }
  @keyframes fadeIn{from{opacity:0;transform:translateY(-4px);}to{opacity:1;transform:translateY(0);}}

  /* ============ CTA ============ */
  .cta-panel{
    position:relative;overflow:hidden;
    border-radius:var(--radius-lg);
    border:1px solid rgba(25,230,179,.26);
    background:linear-gradient(125deg,rgba(21,35,48,.95) 0%,rgba(10,18,26,.96) 60%,rgba(14,165,160,.16) 100%);
    padding:52px 48px;
    box-shadow:var(--shadow);
  }
  .cta-panel::before{
    content:"";position:absolute;right:-90px;top:-90px;width:320px;height:320px;border-radius:50%;
    background:radial-gradient(circle,rgba(25,230,179,.24) 0%,transparent 68%);
    pointer-events:none;
  }
  .cta-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.4fr .9fr;gap:40px;align-items:center;}
  .cta-panel h2{font-size:clamp(23px,2.7vw,31px);margin-bottom:14px;}
  .cta-panel p{color:var(--text-1);font-size:15.5px;max-width:560px;}
  .cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
  .cta-note{
    margin-top:20px;font-size:13px;color:var(--text-2);
    display:flex;flex-wrap:wrap;gap:18px;
  }
  .cta-note span{display:inline-flex;align-items:center;gap:7px;font-variant-numeric:tabular-nums;}
  .cta-side{
    border:1px dashed rgba(25,230,179,.34);
    border-radius:var(--radius);
    padding:24px;
    background:rgba(7,11,15,.45);
  }
  .cta-side h3{font-size:16px;margin-bottom:14px;}
  .cta-side li{
    display:flex;align-items:flex-start;gap:10px;
    font-size:14px;color:var(--text-2);
    padding:8px 0;border-bottom:1px dashed rgba(255,255,255,.08);
  }
  .cta-side li:last-child{border-bottom:0;}
  .cta-side li::before{content:"✓";color:var(--primary);font-weight:700;flex-shrink:0;}

  /* ============ 页脚 ============ */
  .site-footer{
    margin-top:20px;
    border-top:1px solid var(--line);
    background:linear-gradient(180deg,rgba(14,22,32,.72),rgba(7,11,15,1));
    padding:58px 0 28px;
  }
  .footer-grid{
    display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;
    gap:38px;
  }
  .footer-brand{display:flex;align-items:center;gap:10px;color:var(--text-0);font-weight:800;font-size:18px;margin-bottom:16px;}
  .footer-desc{font-size:14.4px;color:var(--text-2);line-height:1.78;max-width:340px;}
  .footer-domain{
    margin-top:16px;display:inline-block;
    padding:5px 12px;border-radius:999px;
    border:1px solid rgba(255,255,255,.12);
    background:rgba(255,255,255,.04);
    font-size:12.5px;color:var(--text-2);letter-spacing:.6px;
  }
  .footer-col h4{font-size:15px;margin-bottom:16px;color:var(--text-0);}
  .footer-col li{margin-bottom:11px;}
  .footer-col a{font-size:14.2px;color:var(--text-2);}
  .footer-col a:hover{color:var(--primary);}
  .footer-bottom{
    margin-top:40px;padding-top:20px;
    border-top:1px solid rgba(255,255,255,.08);
    display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
    font-size:13px;color:var(--text-2);
  }

  /* ============ 响应式 ============ */
  @media (max-width:1024px){
    .nav-links{display:none;}
    .menu-toggle{display:grid;}
    .header-actions .btn-primary{display:none;}
    .hero{padding:124px 0 56px;}
    .hero-inner{grid-template-columns:1fr;gap:38px;}
    .hero-float{left:12px;bottom:-16px;}
    .feature-card{grid-column:span 2;flex-direction:column;}
    .feature-card .card-media{width:100%;}
    .feature-card .card-media img{min-height:200px;aspect-ratio:16/9;}
    .feature-card .card-body{padding:22px;}
    .feature-card h3{font-size:21px;}
    .steps{grid-template-columns:repeat(2,1fr);}
    .stat-grid{grid-template-columns:repeat(2,1fr);}
    .cta-grid{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
    .section{padding:60px 0;}
  }
  @media (max-width:768px){
    body{font-size:16px;}
    .section{padding:52px 0;}
    .hero{padding:112px 0 48px;}
    .hero-sub{font-size:16.5px;}
    .hero-actions .btn{flex:1;min-width:150px;}
    .cta-panel{padding:36px 24px;}
    .footer-grid{grid-template-columns:1fr;gap:28px;}
    .footer-desc{max-width:none;}
  }
  @media (max-width:520px){
    .container{padding:0 16px;}
    .brand-text{font-size:16px;}
    .hero-float{position:static;margin-top:18px;left:auto;bottom:auto;min-width:0;}
    .hero-actions .btn{width:100%;}
    .steps{grid-template-columns:1fr;}
    .stat-grid{grid-template-columns:1fr;}
    .filter-bar{padding:12px;gap:8px;}
    .chip{padding:7px 13px;font-size:13px;}
    .footer-bottom{flex-direction:column;}
  }

/* roulang page: category3 */
:root{
    --bg-0:#070B0F;
    --bg-1:#0E1620;
    --bg-2:#152330;
    --panel:rgba(16,28,38,.72);
    --panel-2:rgba(21,35,48,.78);
    --line:rgba(120,255,220,.16);
    --line-soft:rgba(255,255,255,.08);
    --primary:#19E6B3;
    --primary-deep:#0EA5A0;
    --accent:#FF7A2F;
    --accent-2:#FFB020;
    --text-0:#F2F7F6;
    --text-1:#B8C7C5;
    --text-2:#7C8F8D;
    --success:#34D399;
    --warning:#F59E0B;
    --danger:#F43F5E;
    --radius-card:18px;
    --radius-panel:22px;
    --radius-pill:999px;
    --shadow:0 12px 32px rgba(0,0,0,.38);
    --shadow-hi:0 18px 44px rgba(0,0,0,.5);
    --glow:0 0 0 1px rgba(25,230,179,.18), 0 0 24px rgba(25,230,179,.12);
    --ease:cubic-bezier(.2,.7,.3,1);
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body.site-body{
    margin:0;
    background:var(--bg-0);
    color:var(--text-1);
    font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
    font-size:16.5px;
    line-height:1.78;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  body.site-body::before{
    content:"";
    position:fixed;
    inset:0;
    background-image:
      linear-gradient(rgba(120,255,220,.035) 1px, transparent 1px),
      linear-gradient(90deg, rgba(120,255,220,.035) 1px, transparent 1px);
    background-size:64px 64px;
    pointer-events:none;
    z-index:0;
  }
  img{max-width:100%;display:block;border-radius:14px;}
  a{color:var(--text-1);text-decoration:none;transition:color .22s var(--ease);}
  h1,h2,h3,h4{margin:0;color:var(--text-0);font-weight:700;letter-spacing:.01em;}
  p{margin:0;}
  ul{margin:0;padding:0;list-style:none;}
  button{font-family:inherit;}
  ::selection{background:rgba(25,230,179,.28);color:#fff;}

  div.container{
    width:100%;
    max-width:1200px;
    margin:0 auto;
    padding:0 20px;
    position:relative;
    z-index:2;
  }

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:12px 24px;border-radius:var(--radius-pill);
    font-size:15px;font-weight:600;letter-spacing:.02em;
    border:1px solid transparent;cursor:pointer;
    transition:transform .18s var(--ease),box-shadow .24s var(--ease),background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease);
    white-space:nowrap;
  }
  .btn i{font-size:14px;}
  .btn-primary{
    background:linear-gradient(135deg,var(--primary) 0%,var(--primary-deep) 100%);
    color:#04231e;
    box-shadow:0 10px 26px rgba(25,230,179,.24);
  }
  .btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(25,230,179,.34);color:#04231e;}
  .btn-primary:active{transform:scale(.98);}
  .btn-ghost{
    background:rgba(255,255,255,.05);
    border-color:var(--line);
    color:var(--text-0);
    backdrop-filter:blur(8px);
  }
  .btn-ghost:hover{border-color:rgba(25,230,179,.5);color:var(--primary);transform:translateY(-2px);}
  .btn-ghost:active{transform:scale(.98);}
  .btn-accent{
    background:linear-gradient(135deg,var(--accent) 0%,var(--accent-2) 100%);
    color:#2a1204;
    box-shadow:0 10px 26px rgba(255,122,47,.24);
  }
  .btn-accent:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(255,122,47,.32);color:#2a1204;}
  .btn:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
    outline:2px solid var(--accent-2);
    outline-offset:2px;
  }

  /* ---------- 徽章 / 标签 ---------- */
  .badge{
    display:inline-flex;align-items:center;gap:6px;
    padding:5px 12px;border-radius:var(--radius-pill);
    font-size:12.5px;font-weight:600;letter-spacing:.04em;
    background:rgba(25,230,179,.1);
    border:1px solid rgba(25,230,179,.28);
    color:var(--primary);
  }
  .badge-warn{background:rgba(255,176,32,.1);border-color:rgba(255,176,32,.3);color:var(--accent-2);}
  .badge-muted{background:rgba(255,255,255,.05);border-color:var(--line-soft);color:var(--text-2);}

  /* ---------- 导航 ---------- */
  .site-header{
    position:fixed;top:0;left:0;right:0;z-index:80;
    background:rgba(255,255,255,.04);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    border-bottom:1px solid rgba(255,255,255,.08);
    box-shadow:0 10px 30px rgba(0,0,0,.22);
    transition:background .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
  }
  .site-header.scrolled{
    background:rgba(7,11,15,.95);
    border-bottom-color:rgba(120,255,220,.16);
    box-shadow:0 12px 32px rgba(0,0,0,.45);
  }
  .header-inner{
    display:flex;align-items:center;justify-content:space-between;
    gap:22px;height:74px;
  }
  .brand{display:flex;align-items:center;gap:11px;flex-shrink:0;}
  .brand-mark{
    width:36px;height:36px;border-radius:11px;
    display:grid;place-items:center;
    background:linear-gradient(135deg,var(--primary) 0%,var(--primary-deep) 100%);
    color:#04231e;font-weight:800;font-size:18px;
    box-shadow:0 0 20px rgba(25,230,179,.35);
  }
  .brand-text{font-size:17px;font-weight:700;color:var(--text-0);letter-spacing:.02em;}
  .nav-links{display:flex;align-items:center;gap:4px;}
  .nav-link{
    position:relative;
    padding:9px 15px 12px;
    border-radius:12px;
    font-size:15px;
    color:var(--text-1);
    transition:color .2s var(--ease),background .2s var(--ease);
  }
  .nav-link:hover{color:var(--primary);background:rgba(25,230,179,.08);}
  .nav-link.active{color:var(--primary);background:rgba(25,230,179,.1);}
  .nav-link.active::after{
    content:"";position:absolute;left:15px;right:15px;bottom:4px;height:2px;
    border-radius:2px;background:var(--primary);
    box-shadow:0 0 10px rgba(25,230,179,.7);
  }
  .header-actions{display:flex;align-items:center;gap:12px;}
  .search-box{
    display:flex;align-items:center;gap:9px;
    background:rgba(255,255,255,.05);
    border:1px solid var(--line-soft);
    border-radius:var(--radius-pill);
    padding:8px 15px;
    transition:border-color .24s var(--ease),background .24s var(--ease);
  }
  .search-box:focus-within{border-color:rgba(25,230,179,.55);background:rgba(25,230,179,.07);}
  .search-box i{color:var(--text-2);font-size:13px;}
  .search-box input{
    width:120px;border:0;background:transparent;outline:none;
    color:var(--text-0);font-size:14px;font-family:inherit;
  }
  .search-box input::placeholder{color:var(--text-2);}
  .header-cta{padding:10px 20px;font-size:14px;}
  .mobile-toggle{
    display:none;
    width:42px;height:42px;border-radius:12px;
    background:rgba(255,255,255,.06);
    border:1px solid var(--line-soft);
    color:var(--text-0);font-size:17px;
    align-items:center;justify-content:center;cursor:pointer;
  }
  .mobile-drawer{
    position:fixed;top:74px;left:0;right:0;bottom:0;z-index:79;
    background:rgba(7,11,15,.97);
    backdrop-filter:blur(16px);
    padding:24px 20px 40px;
    display:none;
    flex-direction:column;gap:8px;
    overflow-y:auto;
  }
  .mobile-drawer.open{display:flex;}
  .mobile-drawer a{
    padding:14px 16px;border-radius:14px;
    background:rgba(255,255,255,.04);
    border:1px solid var(--line-soft);
    font-size:16px;color:var(--text-0);
  }
  .mobile-drawer a.active{color:var(--primary);border-color:rgba(25,230,179,.4);background:rgba(25,230,179,.09);}

  /* ---------- Hero ---------- */
  .cat-hero{
    position:relative;
    padding:158px 0 84px;
    overflow:hidden;
    border-bottom:1px solid var(--line);
  }
  .cat-hero::before{
    content:"";position:absolute;inset:0;
    background:url(/assets/images/backpic/back-2.png) center/cover no-repeat;
    opacity:.34;
  }
  .cat-hero::after{
    content:"";position:absolute;inset:0;
    background:
      radial-gradient(900px 480px at 12% 8%, rgba(25,230,179,.14), transparent 62%),
      linear-gradient(180deg, rgba(7,11,15,.78) 0%, rgba(7,11,15,.9) 55%, var(--bg-0) 100%);
  }
  .hero-grid{
    display:grid;
    grid-template-columns:1.15fr .85fr;
    gap:48px;
    align-items:center;
  }
  .crumb{display:flex;align-items:center;gap:9px;font-size:13.5px;color:var(--text-2);margin-bottom:20px;}
  .crumb a{color:var(--text-2);}
  .crumb a:hover{color:var(--primary);}
  .crumb i{font-size:10px;color:var(--text-2);}
  .hero-title{
    font-size:clamp(32px,4.4vw,50px);
    line-height:1.2;
    letter-spacing:.005em;
    margin-bottom:20px;
  }
  .hero-title span{color:var(--primary);}
  .hero-sub{
    font-size:17.5px;line-height:1.85;color:var(--text-1);max-width:620px;margin-bottom:28px;
  }
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
  .hero-points{display:flex;flex-wrap:wrap;gap:10px;}

  .status-panel{
    background:var(--panel);
    border:1px solid var(--line);
    border-radius:var(--radius-panel);
    padding:22px;
    box-shadow:var(--shadow),var(--glow);
    backdrop-filter:blur(14px);
  }
  .status-panel-head{
    display:flex;align-items:center;justify-content:space-between;
    padding-bottom:14px;margin-bottom:16px;
    border-bottom:1px solid var(--line-soft);
  }
  .status-panel-head h4{font-size:15px;letter-spacing:.06em;color:var(--text-0);}
  .status-row{
    display:flex;align-items:center;justify-content:space-between;
    padding:11px 0;border-bottom:1px dashed rgba(255,255,255,.07);
    font-size:14.5px;
  }
  .status-row:last-child{border-bottom:0;padding-bottom:0;}
  .status-row .label{color:var(--text-1);display:flex;align-items:center;gap:9px;}
  .status-row .value{color:var(--text-0);font-weight:600;font-variant-numeric:tabular-nums;}
  .dot{width:9px;height:9px;border-radius:50%;background:var(--success);box-shadow:0 0 0 4px rgba(52,211,153,.16);flex-shrink:0;}
  .dot.warn{background:var(--warning);box-shadow:0 0 0 4px rgba(245,158,11,.16);}
  .dot.info{background:var(--primary);box-shadow:0 0 0 4px rgba(25,230,179,.16);}

  /* ---------- 通用板块 ---------- */
  .section{padding:76px 0;position:relative;}
  .section.alt{background:linear-gradient(180deg,rgba(14,22,32,.6),rgba(7,11,15,0));}
  .section-head{max-width:760px;margin-bottom:40px;}
  .section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:12.5px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
    color:var(--primary);margin-bottom:14px;
  }
  .eyebrow::before{content:"";width:22px;height:2px;background:var(--primary);border-radius:2px;}
  .section-title{font-size:clamp(23px,2.6vw,31px);line-height:1.32;margin-bottom:14px;}
  .section-desc{font-size:16px;color:var(--text-1);line-height:1.85;}

  /* ---------- 状态卡 ---------- */
  .status-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
  .status-card{
    background:var(--panel);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    padding:20px;
    transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
  }
  .status-card:hover{transform:translateY(-2px);border-color:rgba(25,230,179,.4);box-shadow:var(--shadow-hi);}
  .status-card .top{display:flex;align-items:center;gap:9px;margin-bottom:12px;font-size:14px;color:var(--text-2);}
  .status-card h3{font-size:18px;margin-bottom:8px;}
  .status-card p{font-size:14.5px;line-height:1.75;color:var(--text-1);}
  .status-card .metric{
    margin-top:14px;font-size:24px;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;letter-spacing:.02em;
  }

  /* ---------- 时间线 ---------- */
  .timeline{position:relative;padding-left:36px;max-width:900px;}
  .timeline::before{
    content:"";position:absolute;left:9px;top:8px;bottom:10px;width:2px;
    background:linear-gradient(180deg,var(--primary),rgba(25,230,179,.06));
  }
  .timeline-item{position:relative;padding-bottom:30px;}
  .timeline-item:last-child{padding-bottom:0;}
  .timeline-item::before{
    content:"";position:absolute;left:-36px;top:5px;width:20px;height:20px;border-radius:50%;
    background:var(--bg-1);border:2px solid var(--primary);
    box-shadow:0 0 14px rgba(25,230,179,.45);
  }
  .timeline-item h3{font-size:19px;margin-bottom:8px;}
  .timeline-item p{font-size:15px;line-height:1.8;color:var(--text-1);max-width:760px;}
  .timeline-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px;}

  /* ---------- 异常自查卡 ---------- */
  .check-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr;gap:20px;}
  .check-card{
    background:var(--panel);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    overflow:hidden;
    display:flex;flex-direction:column;
    transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
  }
  .check-card:hover{transform:translateY(-3px);border-color:rgba(25,230,179,.42);box-shadow:var(--shadow-hi);}
  .check-card img{width:100%;height:188px;object-fit:cover;border-radius:0;}
  .check-card.feature img{height:236px;}
  .check-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1;}
  .check-body h3{font-size:20px;}
  .check-card.feature .check-body h3{font-size:23px;}
  .check-body p{font-size:14.5px;line-height:1.8;color:var(--text-1);}
  .check-list{display:flex;flex-direction:column;gap:8px;margin-top:2px;}
  .check-list li{display:flex;gap:9px;font-size:14px;color:var(--text-1);line-height:1.7;}
  .check-list i{color:var(--primary);font-size:12px;margin-top:6px;}
  .check-link{margin-top:auto;display:inline-flex;align-items:center;gap:8px;font-size:14.5px;font-weight:600;color:var(--primary);}
  .check-link:hover{color:var(--accent-2);}
  .check-link i{transition:transform .22s var(--ease);}
  .check-card:hover .check-link i{transform:translateX(4px);}

  /* ---------- 防护清单 ---------- */
  .guard-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
  .guard-item{
    background:var(--panel-2);
    border:1px solid var(--line-soft);
    border-radius:var(--radius-card);
    padding:22px;
    transition:border-color .24s var(--ease),transform .24s var(--ease);
  }
  .guard-item:hover{border-color:rgba(25,230,179,.38);transform:translateY(-2px);}
  .guard-icon{
    width:44px;height:44px;border-radius:13px;
    display:grid;place-items:center;
    background:rgba(25,230,179,.12);
    border:1px solid rgba(25,230,179,.28);
    color:var(--primary);font-size:17px;margin-bottom:14px;
  }
  .guard-item h3{font-size:17px;margin-bottom:8px;}
  .guard-item p{font-size:14.5px;line-height:1.78;color:var(--text-1);}
  .warn-strip{
    margin-top:26px;
    display:flex;gap:14px;align-items:flex-start;
    background:rgba(244,63,94,.07);
    border:1px solid rgba(244,63,94,.28);
    border-radius:var(--radius-card);
    padding:18px 20px;
  }
  .warn-strip i{color:var(--danger);font-size:17px;margin-top:4px;}
  .warn-strip p{font-size:14.5px;line-height:1.8;color:var(--text-1);}

  /* ---------- FAQ ---------- */
  .faq-wrap{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:14px;}
  .faq-item{
    background:var(--panel);
    border:1px solid var(--line);
    border-radius:16px;
    backdrop-filter:blur(10px);
    transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
  }
  .faq-item:hover{border-color:rgba(25,230,179,.36);}
  .faq-item[open]{box-shadow:var(--glow);border-color:rgba(25,230,179,.4);}
  .faq-item summary{
    list-style:none;cursor:pointer;
    display:flex;align-items:flex-start;justify-content:space-between;gap:18px;
    padding:18px 22px;font-size:16px;font-weight:600;color:var(--text-0);
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary i{color:var(--primary);font-size:14px;margin-top:6px;transition:transform .26s var(--ease);}
  .faq-item[open] summary i{transform:rotate(180deg);}
  .faq-answer{padding:0 22px 20px;font-size:14.5px;line-height:1.88;color:var(--text-1);animation:fadeUp .32s var(--ease);}
  @keyframes fadeUp{from{opacity:0;transform:translateY(-6px);}to{opacity:1;transform:translateY(0);}}

  /* ---------- 表单 ---------- */
  .contact-grid{display:grid;grid-template-columns:1fr 1.3fr;gap:36px;align-items:start;}
  .contact-aside{
    background:var(--panel);
    border:1px solid var(--line);
    border-radius:var(--radius-panel);
    padding:26px;
    box-shadow:var(--shadow);
  }
  .contact-aside h3{font-size:19px;margin-bottom:12px;}
  .contact-aside p{font-size:14.5px;line-height:1.85;color:var(--text-1);}
  .aside-list{margin-top:20px;display:flex;flex-direction:column;gap:12px;}
  .aside-list li{display:flex;gap:11px;font-size:14px;color:var(--text-1);line-height:1.7;}
  .aside-list i{color:var(--primary);margin-top:5px;font-size:13px;}

  .feedback-form{
    background:var(--panel);
    border:1px solid var(--line);
    border-radius:var(--radius-panel);
    padding:28px;
    box-shadow:var(--shadow);
  }
  .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
  .field{display:flex;flex-direction:column;gap:8px;}
  .field.full{grid-column:1 / -1;}
  .field label{font-size:13.5px;font-weight:600;color:var(--text-1);letter-spacing:.02em;}
  .field label .req{color:var(--accent-2);margin-left:4px;}
  .field input,.field select,.field textarea{
    width:100%;
    background:rgba(7,11,15,.6);
    border:1px solid var(--line-soft);
    border-radius:13px;
    padding:12px 14px;
    color:var(--text-0);
    font-size:14.5px;font-family:inherit;
    transition:border-color .22s var(--ease),background .22s var(--ease),box-shadow .22s var(--ease);
  }
  .field textarea{resize:vertical;min-height:120px;line-height:1.7;}
  .field input::placeholder,.field textarea::placeholder{color:var(--text-2);}
  .field input:focus,.field select:focus,.field textarea:focus{
    outline:none;
    border-color:rgba(25,230,179,.6);
    background:rgba(25,230,179,.05);
    box-shadow:0 0 0 4px rgba(25,230,179,.09);
  }
  .field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--text-2) 50%),linear-gradient(135deg,var(--text-2) 50%,transparent 50%);background-position:calc(100% - 20px) 50%,calc(100% - 14px) 50%;background-size:6px 6px,6px 6px;background-repeat:no-repeat;}
  .field-hint{font-size:12.5px;color:var(--text-2);line-height:1.6;}
  .field-error{font-size:12.5px;color:var(--danger);display:none;}
  .field.error input,.field.error select,.field.error textarea{border-color:rgba(244,63,94,.6);}
  .field.error .field-error{display:block;}
  .form-check{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--text-1);line-height:1.7;}
  .form-check input{width:16px;height:16px;margin-top:4px;accent-color:var(--primary);}
  .form-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-top:4px;}

  /* ---------- CTA ---------- */
  .cta-band{
    position:relative;
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
    overflow:hidden;
  }
  .cta-band::before{
    content:"";position:absolute;inset:0;
    background:url(/assets/images/backpic/back-3.webp) center/cover no-repeat;
    opacity:.22;
  }
  .cta-band::after{
    content:"";position:absolute;inset:0;
    background:radial-gradient(760px 380px at 78% 22%, rgba(255,122,47,.16), transparent 60%),linear-gradient(180deg,rgba(7,11,15,.9),rgba(7,11,15,.96));
  }
  .cta-inner{position:relative;z-index:2;padding:70px 0;display:grid;grid-template-columns:1.4fr 1fr;gap:36px;align-items:center;}
  .cta-inner h2{font-size:clamp(23px,2.6vw,31px);line-height:1.34;margin-bottom:14px;}
  .cta-inner p{font-size:16px;color:var(--text-1);line-height:1.86;max-width:640px;}
  .cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;}

  /* ---------- 页脚 ---------- */
  .site-footer{
    position:relative;z-index:2;
    background:linear-gradient(180deg,rgba(14,22,32,.85),rgba(7,11,15,1));
    border-top:1px solid var(--line);
    padding:64px 0 26px;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.5fr 1fr 1fr 1fr;
    gap:34px;
    padding-bottom:38px;
    border-bottom:1px solid var(--line-soft);
  }
  .footer-brand{display:flex;align-items:center;gap:11px;font-size:17px;font-weight:700;color:var(--text-0);margin-bottom:16px;}
  .footer-brand .brand-mark{width:34px;height:34px;font-size:17px;border-radius:10px;}
  .footer-desc{font-size:14px;line-height:1.85;color:var(--text-1);max-width:380px;}
  .footer-domain{
    margin-top:16px;display:inline-block;
    font-size:13px;letter-spacing:.08em;color:var(--text-2);
    padding:5px 12px;border-radius:var(--radius-pill);
    border:1px solid var(--line-soft);background:rgba(255,255,255,.03);
    font-variant-numeric:tabular-nums;
  }
  .footer-col h4{font-size:14px;letter-spacing:.08em;color:var(--text-0);margin-bottom:16px;text-transform:uppercase;}
  .footer-col ul{display:flex;flex-direction:column;gap:11px;}
  .footer-col a{font-size:14px;color:var(--text-2);}
  .footer-col a:hover{color:var(--primary);}
  .footer-bottom{
    padding-top:22px;
    display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
    font-size:13px;color:var(--text-2);line-height:1.7;
  }

  /* ---------- 响应式 ---------- */
  @media (max-width:1100px){
    .nav-links{display:none;}
    .mobile-toggle{display:flex;}
    .hero-grid{grid-template-columns:1fr;gap:34px;}
    .status-grid{grid-template-columns:repeat(2,1fr);}
    .check-grid{grid-template-columns:1fr 1fr;}
    .check-card.feature{grid-column:1 / -1;}
    .guard-grid{grid-template-columns:repeat(2,1fr);}
    .contact-grid{grid-template-columns:1fr;gap:24px;}
    .cta-inner{grid-template-columns:1fr;gap:24px;}
    .cta-actions{justify-content:flex-start;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  }
  @media (max-width:768px){
    body.site-body{font-size:16px;}
    .search-box{display:none;}
    .header-inner{height:68px;}
    .mobile-drawer{top:68px;}
    .cat-hero{padding:126px 0 62px;}
    .section{padding:56px 0;}
    .status-grid{grid-template-columns:1fr;}
    .check-grid{grid-template-columns:1fr;}
    .check-card img,.check-card.feature img{height:180px;}
    .guard-grid{grid-template-columns:1fr;}
    .form-grid{grid-template-columns:1fr;}
    .timeline{padding-left:30px;}
    .timeline-item::before{left:-30px;}
    .footer-grid{grid-template-columns:1fr;}
    .footer-bottom{flex-direction:column;}
  }
  @media (max-width:520px){
    .hero-title{font-size:29px;}
    .hero-sub{font-size:16px;}
    .btn{width:100%;}
    .hero-actions{flex-direction:column;align-items:stretch;}
    .cta-actions{flex-direction:column;align-items:stretch;}
    .feedback-form,.contact-aside{padding:20px;}
    .faq-item summary{padding:16px 16px;font-size:15px;}
    .faq-answer{padding:0 16px 18px;}
  }