/* roulang page: index */
:root{
  --bg:#0A0D16;
  --bg-deep:#070A11;
  --panel:#121829;
  --panel-2:#171F33;
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.18);
  --text:#E8ECF5;
  --muted:#98A3BB;
  --dim:#6B7690;
  --accent:#B8FF3C;
  --accent-2:#FF4D8D;
  --cyan:#5FE3D6;
  --ink:#0A0D16;
  --card-r:18px;
  --panel-r:24px;
  --btn-r:12px;
  --shadow-card:0 16px 40px rgba(0,0,0,.35);
  --shadow-float:0 24px 60px rgba(0,0,0,.45), inset 0 1px 0 rgba(255,255,255,.08);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  padding-top:72px;
  background:var(--bg);
  color:var(--text);
  font-family:"Inter","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{list-style:none;padding:0;}
svg{display:block;}
::selection{background:rgba(184,255,60,.28);color:#fff;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.section-head h2{font-size:34px;font-weight:600;line-height:1.25;letter-spacing:.01em;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.08em;color:var(--accent);margin-bottom:12px;text-transform:none;}
.eyebrow::before{content:"";width:20px;height:2px;border-radius:2px;background:var(--accent);}
.section-sub{color:var(--muted);font-size:15px;max-width:620px;margin-top:12px;}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;height:72px;
  background:rgba(10,13,22,.72);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:36px;height:36px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(150deg,rgba(184,255,60,.24),rgba(184,255,60,.06));
  border:1px solid rgba(184,255,60,.42);
  box-shadow:0 0 0 1px rgba(184,255,60,.06) inset;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:17px;font-weight:700;letter-spacing:.02em;}
.brand-sub{font-size:11px;color:var(--dim);letter-spacing:.14em;}
.nav-chips{
  display:flex;align-items:center;gap:6px;padding:5px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  border-radius:999px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.04);
  overflow-x:auto;scrollbar-width:none;
}
.nav-chips::-webkit-scrollbar{display:none;}
.chip{
  display:inline-flex;align-items:center;white-space:nowrap;
  padding:8px 16px;border-radius:999px;font-size:14px;color:var(--muted);
  border:1px solid transparent;transition:color .2s,border-color .2s,transform .2s,background .2s;
}
.chip:hover{color:var(--text);border-color:var(--line-strong);transform:translateY(-1px);}
.chip.active{background:var(--accent);color:var(--ink);font-weight:600;border-color:transparent;box-shadow:0 0 18px rgba(184,255,60,.28);}
.nav-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.nav-link{font-size:14px;color:var(--muted);transition:color .2s;}
.nav-link:hover{color:var(--accent);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);align-items:center;justify-content:center;
  background:rgba(255,255,255,.03);
}
.nav-toggle:hover{border-color:var(--line-strong);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--btn-r);font-size:15px;font-weight:600;line-height:1;
  padding:14px 24px;transition:transform .2s,box-shadow .2s,background .2s,color .2s,border-color .2s;
  border:1px solid transparent;
}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.btn-primary{
  background:var(--accent);color:var(--ink);
  box-shadow:0 8px 24px rgba(184,255,60,.22),inset 0 0 0 1px rgba(255,255,255,.24);
}
.btn-primary:hover{background:#c6ff5e;transform:translateY(-1px);box-shadow:0 14px 32px rgba(184,255,60,.32);}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px rgba(184,255,60,.2);}
.btn-secondary{
  background:rgba(255,255,255,.03);color:var(--text);border-color:var(--line);
}
.btn-secondary:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px);}
.btn-ghost{background:none;color:var(--muted);padding:8px 0;font-weight:500;}
.btn-ghost svg{transition:transform .2s;}
.btn-ghost:hover{color:var(--accent);}
.btn-ghost:hover svg{transform:translateX(3px);}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn[disabled],.btn:disabled{opacity:.4;box-shadow:none;pointer-events:none;}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:88px 0 80px;border-bottom:1px solid var(--line);}
.hero-bg{
  position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  opacity:.5;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(900px 420px at 18% 12%,rgba(184,255,60,.14),transparent 62%),
    radial-gradient(700px 380px at 88% 82%,rgba(255,77,141,.10),transparent 66%),
    linear-gradient(180deg,rgba(10,13,22,.82),rgba(10,13,22,.96) 72%,var(--bg));
}
.hero-grid-lines{
  position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(to right,rgba(255,255,255,.06) 1px,transparent 1px),
                   linear-gradient(to bottom,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:64px 64px;
  opacity:.5;
  mask-image:radial-gradient(circle at 50% 30%,#000 20%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 30%,#000 20%,transparent 78%);
}
.hero-inner{position:relative;display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;}
.hero h1{font-size:52px;font-weight:700;line-height:1.2;letter-spacing:.01em;}
.hero h1 .hl{color:var(--accent);}
.hero-sub{color:var(--muted);font-size:17px;line-height:1.9;margin-top:22px;max-width:560px;}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.pill{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 15px;border-radius:999px;font-size:13px;color:var(--accent);
  border:1px solid rgba(184,255,60,.36);background:rgba(184,255,60,.06);
}
.pill svg{flex:0 0 auto;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}

.hero-panel{
  position:relative;border-radius:var(--panel-r);padding:26px;
  background:rgba(23,31,51,.62);
  border:1px solid rgba(255,255,255,.14);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  box-shadow:var(--shadow-float);
}
.panel-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.panel-title{font-size:14px;color:var(--muted);letter-spacing:.04em;}
.panel-dots{display:flex;gap:6px;}
.panel-dots i{width:8px;height:8px;border-radius:50%;background:rgba(255,255,255,.16);display:block;}
.panel-dots i:first-child{background:var(--accent);}
.field{margin-bottom:14px;}
.field label{display:block;font-size:12px;color:var(--dim);letter-spacing:.06em;margin-bottom:8px;}
.field .fake-input{
  display:flex;align-items:center;gap:10px;
  padding:14px 16px;border-radius:var(--btn-r);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  color:var(--muted);font-size:14px;
}
.field .fake-input .caret{width:2px;height:16px;background:var(--accent);border-radius:2px;animation:blink 1.4s steps(2) infinite;}
@keyframes blink{0%,49%{opacity:1}50%,100%{opacity:0}}
.panel-status{
  display:flex;align-items:center;gap:8px;font-size:12px;color:var(--cyan);
  padding:10px 14px;border-radius:10px;background:rgba(95,227,214,.08);
  border:1px solid rgba(95,227,214,.28);margin-bottom:18px;
}
.panel-status .dot-live{width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan);}
.float-card{
  position:absolute;right:-16px;bottom:-18px;
  background:var(--panel);border:1px solid var(--line);
  border-radius:14px;padding:14px 18px;box-shadow:var(--shadow-card);
  display:flex;align-items:center;gap:12px;
}
.float-card .fc-num{font-size:18px;font-weight:700;color:var(--accent);font-family:"Inter",sans-serif;}
.float-card .fc-text{font-size:12px;color:var(--dim);line-height:1.4;}

/* ---------- stats ---------- */
.stats-band{border-bottom:1px solid var(--line);background:rgba(255,255,255,.012);}
.stats{display:grid;grid-template-columns:repeat(4,1fr);}
.stat{padding:38px 24px;text-align:left;position:relative;}
.stat + .stat::before{content:"";position:absolute;left:0;top:34px;bottom:34px;width:1px;background:var(--line);}
.stat-num{font-family:"Inter",sans-serif;font-size:44px;font-weight:700;color:var(--accent);line-height:1.1;letter-spacing:-.01em;}
.stat-num span{font-size:18px;color:var(--muted);font-weight:500;margin-left:4px;}
.stat-label{font-size:14px;color:var(--muted);margin-top:8px;}
.stats-note{padding:0 0 34px;color:var(--dim);font-size:13px;}

/* ---------- value ---------- */
.value-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:center;}
.value-media{
  position:relative;border-radius:var(--panel-r);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-card);min-height:420px;
}
.value-media img{width:100%;height:100%;object-fit:cover;min-height:420px;}
.value-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,13,22,.16),rgba(10,13,22,.78));
}
.value-media .vm-tag{
  position:absolute;left:22px;bottom:22px;z-index:2;
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--text);padding:9px 16px;border-radius:999px;
  background:rgba(10,13,22,.7);border:1px solid rgba(184,255,60,.34);
}
.value-list{display:flex;flex-direction:column;gap:26px;}
.value-item{display:grid;grid-template-columns:64px 1fr;gap:20px;padding-bottom:26px;border-bottom:1px dashed var(--line);}
.value-item:last-child{border-bottom:0;padding-bottom:0;}
.value-num{
  font-family:"Inter",sans-serif;font-size:26px;font-weight:700;color:var(--accent);
  line-height:1;letter-spacing:.02em;
}
.value-item h3{font-size:20px;font-weight:600;margin-bottom:8px;}
.value-item p{color:var(--muted);font-size:15px;}

/* ---------- carousel ---------- */
.shots-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px;}
.carousel-ctrl{display:flex;gap:10px;}
.ctrl-btn{
  width:44px;height:44px;border-radius:50%;display:grid;place-items:center;
  border:1px solid var(--line);background:rgba(255,255,255,.03);color:var(--muted);
  transition:border-color .2s,color .2s,transform .2s;
}
.ctrl-btn:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px);}
.ctrl-btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.shot-track{
  display:flex;gap:24px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding-bottom:18px;scrollbar-width:none;
}
.shot-track::-webkit-scrollbar{display:none;}
.shot{
  flex:0 0 calc((100% - 48px)/3);scroll-snap-align:start;
  border-radius:20px;overflow:hidden;border:1px solid var(--line);
  background:var(--panel);box-shadow:var(--shadow-card);
}
.device-bar{display:flex;align-items:center;gap:6px;padding:12px 16px;background:var(--panel-2);border-bottom:1px solid var(--line);}
.device-bar i{width:8px;height:8px;border-radius:50%;background:rgba(255,255,255,.16);display:block;}
.device-bar i:first-child{background:var(--accent-2);}
.device-bar span{margin-left:auto;font-size:11px;color:var(--dim);letter-spacing:.06em;}
.shot img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.shot-cap{padding:18px 20px;}
.shot-cap h3{font-size:16px;font-weight:600;margin-bottom:6px;}
.shot-cap p{font-size:13px;color:var(--dim);}
.progress-rail{height:3px;border-radius:3px;background:rgba(255,255,255,.08);overflow:hidden;margin-top:10px;}
.progress-bar{height:100%;width:34%;border-radius:3px;background:var(--accent);transition:width .2s,transform .2s;}

/* ---------- requirements ---------- */
.reqs-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.req-card{
  border-radius:var(--panel-r);padding:30px;
  background:rgba(23,31,51,.55);
  border:1px solid var(--line);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  box-shadow:var(--shadow-card);
}
.req-card h3{font-size:18px;font-weight:600;margin-bottom:20px;display:flex;align-items:center;gap:10px;}
.req-card h3 .tag{font-size:11px;letter-spacing:.06em;padding:4px 10px;border-radius:999px;border:1px solid var(--line);color:var(--muted);}
.req-card.recommend h3 .tag{color:var(--accent);border-color:rgba(184,255,60,.4);background:rgba(184,255,60,.08);}
.req-row{display:flex;justify-content:space-between;gap:20px;padding:13px 0;border-bottom:1px dashed var(--line);font-size:14px;}
.req-row:last-child{border-bottom:0;}
.req-row .k{color:var(--muted);}
.req-row .v{color:var(--text);font-weight:500;text-align:right;}
.req-note{margin-top:22px;font-size:13px;color:var(--dim);}

/* ---------- reviews ---------- */
.reviews{columns:2;column-gap:24px;}
.review-card{
  break-inside:avoid;margin-bottom:24px;padding:26px;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--card-r);
  box-shadow:var(--shadow-card);transition:border-color .2s,transform .2s;
}
.review-card:hover{border-color:rgba(184,255,60,.28);transform:translateY(-2px);}
.stars{display:flex;gap:3px;margin-bottom:14px;}
.stars svg{fill:var(--accent-2);}
.review-card p{font-size:15px;color:var(--text);line-height:1.85;}
.reviewer{display:flex;align-items:center;gap:12px;margin-top:20px;}
.avatar{
  width:38px;height:38px;border-radius:50%;display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(184,255,60,.22),rgba(255,77,141,.22));
  border:1px solid var(--line);font-size:13px;font-weight:600;color:var(--text);
}
.reviewer .rname{font-size:14px;font-weight:600;}
.reviewer .rrole{font-size:12px;color:var(--dim);}

/* ---------- cta panel ---------- */
.cta-panel{
  position:relative;overflow:hidden;border-radius:var(--panel-r);padding:48px;
  background:rgba(23,31,51,.6);
  border:1px solid rgba(255,255,255,.14);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  box-shadow:var(--shadow-float);
  display:grid;grid-template-columns:1fr auto;gap:40px;align-items:center;
}
.cta-panel::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(184,255,60,.7),transparent);
}
.cta-panel h2{font-size:32px;font-weight:600;line-height:1.3;}
.cta-panel p{color:var(--muted);font-size:15px;margin-top:12px;max-width:520px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.cta-side{display:flex;flex-direction:column;align-items:center;gap:12px;}
.qr-box{
  width:120px;height:120px;border-radius:16px;
  border:1px dashed rgba(255,255,255,.24);background:rgba(255,255,255,.04);
  display:grid;place-items:center;color:var(--dim);font-size:12px;text-align:center;padding:10px;
}
.qr-box svg{opacity:.5;margin:0 auto 6px;}
.cta-side small{font-size:12px;color:var(--dim);}

/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--card-r);
  box-shadow:var(--shadow-card);transition:transform .22s,border-color .22s,box-shadow .22s;
}
.news-card:hover{transform:translateY(-2px);border-color:rgba(184,255,60,.26);box-shadow:var(--shadow-float);}
.news-card:focus-visible{outline:2px solid var(--accent);outline-offset:3px;}
.card-media{position:relative;overflow:hidden;}
.card-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s;}
.news-card:hover .card-media img{transform:scale(1.03);}
.badge{
  position:absolute;left:14px;top:14px;
  display:inline-flex;align-items:center;
  padding:5px 12px;border-radius:999px;font-size:12px;letter-spacing:.04em;font-weight:600;
  background:rgba(184,255,60,.86);color:var(--ink);
}
.badge-soft{position:static;background:rgba(184,255,60,.12);color:var(--accent);border:1px solid rgba(184,255,60,.28);font-weight:500;}
.card-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1;}
.card-body h3{
  font-size:18px;font-weight:600;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-text{
  color:var(--muted);font-size:14px;margin-top:10px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.meta{display:flex;align-items:center;gap:8px;margin-top:auto;padding-top:18px;font-size:13px;color:var(--dim);}
.meta .dot{opacity:.6;}
.meta .arrow{margin-left:auto;color:var(--muted);transition:transform .2s,color .2s;}
.news-card:hover .meta .arrow{transform:translateX(3px);color:var(--accent);}
.empty{
  border:1.5px dashed rgba(255,255,255,.14);border-radius:var(--panel-r);
  padding:56px 24px;text-align:center;color:var(--muted);
}
.empty svg{margin:0 auto 14px;opacity:.5;}
.empty p{font-size:15px;margin-bottom:18px;}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--card-r);
  padding:0 24px;transition:border-color .2s;
}
.faq-item[open]{border-color:rgba(184,255,60,.3);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:16px;
  padding:22px 0;font-size:16px;font-weight:600;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .chev{margin-left:auto;color:var(--muted);transition:transform .25s,color .25s;flex:0 0 auto;}
.faq-item[open] summary .chev{transform:rotate(180deg);color:var(--accent);}
.faq-item summary:focus-visible{outline:2px solid var(--accent);outline-offset:4px;border-radius:8px;}
.faq-answer{color:var(--muted);font-size:15px;padding:0 0 24px 32px;animation:fadeIn .2s ease;}
@keyframes fadeIn{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}

/* ---------- footer ---------- */
.site-footer{background:var(--bg-deep);border-top:1px solid var(--line);padding:64px 0 0;}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.foot-brand p{color:var(--muted);font-size:14px;margin:16px 0 20px;max-width:280px;}
.foot-qr{width:96px;height:96px;border-radius:12px;border:1px dashed rgba(255,255,255,.2);display:grid;place-items:center;color:var(--dim);font-size:11px;background:rgba(255,255,255,.03);}
.foot-note{font-size:12px;color:var(--dim);margin-top:10px;}
.foot-col h4{font-size:13px;letter-spacing:.1em;color:var(--dim);font-weight:600;margin-bottom:16px;}
.foot-col ul{display:flex;flex-direction:column;gap:11px;}
.foot-col a{font-size:14px;color:var(--muted);transition:color .2s,transform .2s;display:inline-block;}
.foot-col a:hover{color:var(--accent);transform:translateX(2px);}
.sub-form{display:flex;gap:8px;margin-top:14px;}
.input{
  width:100%;padding:12px 14px;border-radius:var(--btn-r);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  color:var(--text);font-size:14px;transition:border-color .2s,box-shadow .2s;
}
.input::placeholder{color:var(--dim);}
.input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(184,255,60,.15);}
.sub-form .btn{padding:12px 18px;flex:0 0 auto;}
.foot-bottom{
  border-top:1px solid var(--line);padding:22px 0 28px;
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--dim);
}
.foot-bottom .fb-left{display:flex;flex-wrap:wrap;gap:16px;align-items:center;}
.foot-bottom a{color:var(--dim);}
.foot-bottom a:hover{color:var(--accent);}

/* ---------- to top ---------- */
.to-top{
  position:fixed;right:26px;bottom:26px;z-index:70;
  width:46px;height:46px;border-radius:50%;display:grid;place-items:center;
  background:var(--panel);border:1px solid var(--line);color:var(--muted);
  box-shadow:var(--shadow-card);opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s,transform .25s,visibility .25s,border-color .2s,color .2s;
}
.to-top.show{opacity:1;visibility:visible;transform:none;}
.to-top:hover{border-color:var(--accent);color:var(--accent);}
.to-top:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}

/* ---------- drawer ---------- */
.scrim{
  position:fixed;inset:0;background:rgba(4,6,10,.7);z-index:75;
  opacity:0;visibility:hidden;transition:opacity .25s,visibility .25s;
}
.scrim.show{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(360px,86vw);z-index:90;
  background:#0B0F1A;border-left:1px solid var(--line);padding:22px;
  transform:translateX(100%);transition:transform .28s ease;overflow-y:auto;
  display:flex;flex-direction:column;
}
.drawer.open{transform:none;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);display:grid;place-items:center;color:var(--muted);}
.drawer-close:hover{color:var(--accent);border-color:var(--accent);}
.drawer-nav{display:grid;grid-template-columns:1fr 1fr;gap:10px;}
.drawer-nav a{
  padding:12px 14px;border-radius:12px;border:1px solid var(--line);
  font-size:14px;color:var(--muted);text-align:center;
}
.drawer-nav a.active{background:var(--accent);color:var(--ink);font-weight:600;border-color:transparent;}
.drawer-nav a:hover{border-color:var(--line-strong);color:var(--text);}
.drawer-nav a.active:hover{color:var(--ink);}
.drawer .btn{margin-top:auto;width:100%;margin-top:24px;}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  .nav-chips{display:none;}
  .nav-toggle{display:flex;}
  .nav-actions .nav-link{display:none;}
  .hero h1{font-size:42px;}
  .hero-inner{gap:40px;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .shot{flex:0 0 calc((100% - 24px)/2);}
}
@media (max-width:900px){
  .section{padding:72px 0;}
  .hero{padding:64px 0 60px;}
  .hero-inner{grid-template-columns:1fr;gap:44px;}
  .hero h1{font-size:38px;}
  .hero-sub{max-width:100%;}
  .value-grid{grid-template-columns:1fr;gap:32px;}
  .reqs-grid{grid-template-columns:1fr;}
  .reviews{columns:1;}
  .cta-panel{grid-template-columns:1fr;padding:36px;}
  .cta-side{align-items:flex-start;}
  .float-card{right:8px;bottom:-14px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .stats{grid-template-columns:repeat(2,1fr);}
  .stat:nth-child(3)::before{display:none;}
  .stat{padding:28px 18px;}
  .stat + .stat::before{top:24px;bottom:24px;}
  .stat:nth-child(odd)::before{display:none;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;}
  .shots-head{flex-direction:column;align-items:flex-start;}
}
@media (max-width:640px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .hero{padding:48px 0 52px;}
  .hero h1{font-size:30px;}
  .hero-sub{font-size:15px;}
  .section-head h2{font-size:26px;}
  .cta-panel h2{font-size:24px;}
  .stat-num{font-size:34px;}
  .news-grid{grid-template-columns:1fr;}
  .shot{flex:0 0 88%;}
  .foot-grid{grid-template-columns:1fr;gap:28px;}
  .btn{width:100%;}
  .hero-cta{flex-direction:column;}
  .cta-actions{flex-direction:column;}
  .sub-form{flex-direction:column;}
  .sub-form .btn{width:100%;}
  .value-item{grid-template-columns:1fr;gap:8px;}
  .value-num{font-size:22px;}
  .brand-sub{display:none;}
  .to-top{right:16px;bottom:16px;}
  .drawer-nav{grid-template-columns:1fr;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
  --bg:#0A0D16;
  --panel:#121829;
  --panel-2:#171F33;
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.16);
  --text:#E8ECF5;
  --muted:#98A3BB;
  --dim:#6B7690;
  --accent:#B8FF3C;
  --accent-2:#FF4D8D;
  --cyan:#5FE3D6;
  --ink:#0A0D16;
  --r-card:18px;
  --r-panel:24px;
  --r-img:14px;
  --r-btn:12px;
  --r-chip:999px;
  --r-input:12px;
  --sh-card:0 16px 40px rgba(0,0,0,.35);
  --sh-float:0 24px 60px rgba(0,0,0,.45),inset 0 1px 0 rgba(255,255,255,.08);
  --font:"Inter","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --wrap:1200px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .18s ease,border-color .18s ease,transform .18s ease;}
a:hover{color:var(--accent);}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:600;letter-spacing:0;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
input{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 32px;}
.skip{position:absolute;left:-9999px;top:0;background:var(--accent);color:var(--ink);padding:10px 18px;border-radius:0 0 10px 0;z-index:200;}
.skip:focus{left:0;}

/* ---------- header ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  height:72px;
  z-index:100;
  background:rgba(10,13,22,.72);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  height:72px;
  display:flex;
  align-items:center;
  gap:24px;
  justify-content:space-between;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  display:grid;place-items:center;
  background:linear-gradient(150deg,rgba(184,255,60,.22),rgba(184,255,60,.04));
  border:1px solid rgba(184,255,60,.38);
  box-shadow:0 0 0 1px rgba(0,0,0,.3) inset;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:17px;font-weight:700;letter-spacing:.02em;}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.14em;}
.nav-wrap{
  flex:1 1 auto;
  display:flex;
  justify-content:center;
}
.nav-chips{
  display:flex;
  align-items:center;
  gap:6px;
  padding:6px;
  border-radius:var(--r-chip);
  background:rgba(255,255,255,.04);
  box-shadow:inset 0 1px 2px rgba(0,0,0,.4);
  max-width:100%;
  overflow-x:auto;
  scrollbar-width:none;
}
.nav-chips::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;
  padding:8px 16px;
  font-size:14px;
  color:var(--muted);
  border:1px solid transparent;
  border-radius:var(--r-chip);
  white-space:nowrap;
  transition:color .18s ease,background .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.chip:hover{
  color:var(--text);
  border-color:var(--line-strong);
  background:rgba(255,255,255,.05);
  transform:translateY(-1px);
}
.chip.active{
  color:var(--ink);
  background:var(--accent);
  border-color:var(--accent);
  font-weight:600;
  box-shadow:0 0 18px rgba(184,255,60,.28);
}
.header-right{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.link-quiet{font-size:14px;color:var(--muted);}
.link-quiet:hover{color:var(--accent);}
.nav-toggle{
  display:none;
  width:42px;height:42px;border-radius:12px;
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  color:var(--text);
  align-items:center;justify-content:center;
}
.nav-toggle:hover{border-color:var(--accent);color:var(--accent);}
.drawer{
  position:fixed;
  top:0;right:0;bottom:0;
  width:min(86vw,340px);
  background:#0C1120;
  border-left:1px solid var(--line);
  transform:translateX(105%);
  transition:transform .26s ease;
  z-index:120;
  padding:20px;
  display:flex;
  flex-direction:column;
  gap:18px;
  overflow-y:auto;
}
.drawer.open{transform:translateX(0);}
.drawer-top{display:flex;align-items:center;justify-content:space-between;}
.drawer-title{font-size:14px;color:var(--muted);letter-spacing:.08em;}
.drawer-close{
  width:38px;height:38px;border-radius:10px;background:rgba(255,255,255,.05);
  border:1px solid var(--line);color:var(--text);display:grid;place-items:center;
}
.drawer-chips{display:grid;grid-template-columns:1fr 1fr;gap:10px;}
.drawer-chips .chip{border:1px solid var(--line);text-align:center;padding:10px 8px;}
.drawer .btn{margin-top:auto;width:100%;}
.backdrop{
  position:fixed;inset:0;background:rgba(4,6,12,.6);
  opacity:0;pointer-events:none;transition:opacity .24s ease;z-index:110;
}
.backdrop.open{opacity:1;pointer-events:auto;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;
  font-size:15px;font-weight:600;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn:disabled{opacity:.4;cursor:not-allowed;box-shadow:none;}
.btn-primary{
  background:var(--accent);
  color:var(--ink);
  box-shadow:0 8px 24px rgba(184,255,60,.22),inset 0 0 0 1px rgba(255,255,255,.28);
}
.btn-primary:hover{
  color:var(--ink);
  background:#c6ff62;
  transform:translateY(-1px);
  box-shadow:0 14px 32px rgba(184,255,60,.32),inset 0 0 0 1px rgba(255,255,255,.34);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px rgba(184,255,60,.2);}
.btn-secondary{
  background:transparent;
  color:var(--text);
  border-color:var(--line-strong);
}
.btn-secondary:hover{color:var(--accent);border-color:var(--accent);background:rgba(184,255,60,.06);}
.btn-ghost{
  background:transparent;color:var(--accent);padding:6px 0;font-weight:600;
  display:inline-flex;align-items:center;gap:6px;border:0;
}
.btn-ghost svg{transition:transform .18s ease;}
.btn-ghost:hover svg{transform:translateX(3px);}
.btn-sm{padding:10px 18px;font-size:14px;}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;
  padding:132px 0 64px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:linear-gradient(180deg,rgba(10,13,22,.74) 0%,rgba(10,13,22,.92) 62%,var(--bg) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  opacity:.9;
  z-index:0;
}
.page-hero::after{
  content:"";
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 30% 20%,#000 0%,transparent 72%);
  -webkit-mask-image:radial-gradient(circle at 30% 20%,#000 0%,transparent 72%);
  z-index:0;
}
.page-hero .container{position:relative;z-index:1;}
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--dim);margin-bottom:20px;
}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--accent);}
.crumbs .sep{color:rgba(255,255,255,.22);}
.crumbs .current{color:var(--accent);}
.hero-row{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.hero-copy{max-width:720px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.08em;color:var(--accent);
  border:1px solid rgba(184,255,60,.34);
  background:rgba(184,255,60,.08);
  padding:5px 14px;border-radius:var(--r-chip);margin-bottom:18px;
}
.page-hero h1{
  font-size:44px;font-weight:700;letter-spacing:-.01em;
  margin-bottom:16px;
}
.page-hero .lede{color:var(--muted);font-size:17px;max-width:620px;}

/* ---------- sections ---------- */
.section{padding:72px 0;}
.section.tight{padding-top:56px;}
.sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:36px;flex-wrap:wrap;
}
.sec-head h2{font-size:30px;}
.sec-head p{color:var(--muted);font-size:15px;margin-top:8px;}
.sec-head .head-right{color:var(--muted);font-size:14px;}

.grid-12{display:grid;grid-template-columns:repeat(12,1fr);gap:var(--gap);}
.col-8{grid-column:span 8;}
.col-4{grid-column:span 4;}

/* ---------- timeline ---------- */
.timeline{
  position:relative;
  padding-left:28px;
}
.timeline::before{
  content:"";
  position:absolute;left:7px;top:6px;bottom:6px;width:2px;
  background:linear-gradient(180deg,rgba(184,255,60,.55),rgba(184,255,60,.06));
  border-radius:2px;
}
.tl-item{
  position:relative;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:22px 24px;
  margin-bottom:16px;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.tl-item::before{
  content:"";
  position:absolute;left:-27px;top:30px;
  width:12px;height:12px;border-radius:50%;
  background:var(--bg);
  border:2px solid var(--accent);
  box-shadow:0 0 0 4px rgba(184,255,60,.10);
}
.tl-item:hover{
  transform:translateY(-2px);
  border-color:rgba(184,255,60,.32);
  box-shadow:var(--sh-card);
}
.tl-top{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:10px;}
.tl-date{
  font-size:13px;color:var(--accent);font-weight:700;
  font-variant-numeric:tabular-nums;letter-spacing:.04em;
}
.badge{
  display:inline-flex;align-items:center;
  font-size:12px;letter-spacing:.04em;
  padding:3px 10px;border-radius:var(--r-chip);
  background:rgba(184,255,60,.16);
  color:#D8FF8F;
  border:1px solid rgba(184,255,60,.28);
}
.badge.pink{background:rgba(255,77,141,.14);color:#FFA8C5;border-color:rgba(255,77,141,.34);}
.badge.cyan{background:rgba(95,227,214,.12);color:#A7F2EA;border-color:rgba(95,227,214,.3);}
.tl-item h3{font-size:19px;margin-bottom:8px;}
.tl-item h3 a:hover{color:var(--accent);}
.tl-item p{color:var(--muted);font-size:15px;}

/* ---------- pinned sidebar ---------- */
.pin-card{
  background:var(--panel-2);
  border:1px solid var(--line);
  border-radius:var(--r-panel);
  overflow:hidden;
  box-shadow:var(--sh-card);
  margin-bottom:20px;
}
.pin-card .thumb{
  aspect-ratio:16/10;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.pin-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.pin-card:hover .thumb img{transform:scale(1.03);}
.pin-card .pin-body{padding:22px 24px 24px;}
.pin-card h3{font-size:18px;margin:10px 0 10px;}
.pin-card h3 a:hover{color:var(--accent);}
.pin-card p{color:var(--muted);font-size:14px;}
.pin-side-title{
  font-size:13px;color:var(--dim);letter-spacing:.1em;
  margin:0 0 14px 2px;
}
.pin-list{display:flex;flex-direction:column;gap:14px;}
.pin-list li{
  border-left:3px solid var(--accent);
  background:rgba(255,255,255,.03);
  border-radius:0 12px 12px 0;
  padding:12px 16px;
  transition:background .18s ease,transform .18s ease;
}
.pin-list li:hover{background:rgba(184,255,60,.07);transform:translateX(2px);}
.pin-list a{font-size:15px;font-weight:600;display:block;}
.pin-list span{display:block;font-size:13px;color:var(--dim);margin-top:4px;}

/* ---------- stats strip ---------- */
.strip{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.strip div{
  padding:26px 24px;
  border-right:1px solid var(--line);
}
.strip div:last-child{border-right:0;}
.strip strong{
  display:block;font-size:32px;font-weight:700;color:var(--accent);
  font-variant-numeric:tabular-nums;line-height:1.1;
}
.strip span{font-size:14px;color:var(--muted);}

/* ---------- faq ---------- */
.faq{display:flex;flex-direction:column;gap:12px;}
.faq details{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:0;
  transition:border-color .2s ease;
}
.faq details[open]{border-color:rgba(184,255,60,.3);}
.faq summary{
  list-style:none;
  cursor:pointer;
  padding:20px 24px;
  font-size:16px;font-weight:600;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary .ico{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;
  border:1px solid var(--line-strong);
  display:grid;place-items:center;
  transition:transform .24s ease,color .24s ease,border-color .24s ease;
  color:var(--muted);font-size:14px;line-height:1;
}
.faq details[open] summary .ico{transform:rotate(180deg);color:var(--accent);border-color:var(--accent);}
.faq .ans{padding:0 24px 22px;color:var(--muted);font-size:15px;animation:fade .2s ease;}
@keyframes fade{from{opacity:0;transform:translateY(4px);}to{opacity:1;transform:none;}}

/* ---------- cta panel ---------- */
.cta-panel{
  position:relative;
  border-radius:var(--r-panel);
  padding:44px 40px;
  background:linear-gradient(120deg,rgba(184,255,60,.1),rgba(23,31,51,.9) 58%);
  border:1px solid rgba(184,255,60,.24);
  box-shadow:var(--sh-float);
  overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-panel::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.5),transparent);
}
.cta-panel h2{font-size:28px;margin-bottom:10px;}
.cta-panel p{color:var(--muted);max-width:560px;font-size:15px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- footer ---------- */
.site-footer{
  background:#070A11;
  border-top:1px solid var(--line);
  padding:64px 0 0;
  margin-top:72px;
}
.foot-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.3fr;
  gap:40px;
  padding-bottom:48px;
}
.foot-brand p{color:var(--muted);font-size:14px;margin:16px 0 18px;max-width:280px;}
.foot-qr{
  width:96px;height:96px;border-radius:12px;
  border:1px dashed rgba(255,255,255,.2);
  display:grid;place-items:center;
  font-size:12px;color:var(--dim);
  background:rgba(255,255,255,.03);
}
.foot-note{font-size:12px;color:var(--dim);margin-top:10px;}
.foot-col h4{
  font-size:13px;letter-spacing:.1em;color:var(--dim);
  margin-bottom:16px;font-weight:600;
}
.foot-col ul{display:flex;flex-direction:column;gap:10px;}
.foot-col a{font-size:14px;color:var(--muted);display:inline-block;transition:color .18s ease,transform .18s ease;}
.foot-col a:hover{color:var(--accent);transform:translateX(2px);}
.sub-form{display:flex;gap:8px;margin-top:14px;}
.input{
  width:100%;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  border-radius:var(--r-input);
  padding:12px 14px;
  color:var(--text);
  font-size:14px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.input::placeholder{color:var(--dim);}
.input:focus{
  outline:none;
  border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(184,255,60,.15);
}
.foot-bottom{
  border-top:1px solid var(--line);
  padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13px;color:var(--dim);
}
.fb-left{display:flex;align-items:center;gap:18px;flex-wrap:wrap;}
.fb-left a{color:var(--muted);}
.fb-left a:hover{color:var(--accent);}

/* ---------- to top ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;
  width:46px;height:46px;border-radius:50%;
  background:var(--accent);color:var(--ink);
  border:1px solid rgba(255,255,255,.3);
  display:grid;place-items:center;
  box-shadow:0 10px 26px rgba(184,255,60,.28);
  opacity:0;pointer-events:none;transform:translateY(8px);
  transition:opacity .22s ease,transform .22s ease;
  z-index:90;
}
.to-top.show{opacity:1;pointer-events:auto;transform:none;}
.to-top:hover{color:var(--ink);background:#c9ff6b;}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  .nav-wrap{display:none;}
  .header-right .link-quiet{display:none;}
  .nav-toggle{display:inline-flex;}
  .page-hero h1{font-size:38px;}
  .grid-12{grid-template-columns:1fr;}
  .col-8,.col-4{grid-column:span 1;}
  .foot-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:900px){
  .container{padding:0 24px;}
  .page-hero{padding:112px 0 52px;}
  .page-hero h1{font-size:32px;}
  .section{padding:56px 0;}
  .sec-head h2{font-size:26px;}
  .strip{grid-template-columns:1fr 1fr;}
  .strip div:nth-child(2){border-right:0;}
  .strip div:nth-child(1),.strip div:nth-child(2){border-bottom:1px solid var(--line);}
  .cta-panel{padding:32px 26px;}
  .cta-panel h2{font-size:24px;}
}
@media (max-width:640px){
  .container{padding:0 20px;}
  body{font-size:15px;}
  .page-hero h1{font-size:26px;}
  .page-hero .lede{font-size:15px;}
  .timeline{padding-left:22px;}
  .tl-item{padding:18px 18px;}
  .tl-item::before{left:-21px;width:10px;height:10px;}
  .strip{grid-template-columns:1fr;}
  .strip div{border-right:0;border-bottom:1px solid var(--line);}
  .strip div:last-child{border-bottom:0;}
  .foot-grid{grid-template-columns:1fr;gap:30px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .sub-form{flex-direction:column;}
  .sub-form .btn{width:100%;}
  .foot-bottom{flex-direction:column;align-items:flex-start;}
  .to-top{right:16px;bottom:16px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

/* roulang page: article */
:root{
  --bg:#0A0D16;
  --panel:#121829;
  --panel-2:#171F33;
  --line:rgba(255,255,255,.09);
  --text:#E8ECF5;
  --muted:#98A3BB;
  --dim:#6B7690;
  --accent:#B8FF3C;
  --accent-2:#FF4D8D;
  --cyan:#5FE3D6;
  --r-card:18px;
  --r-panel:24px;
  --r-img:14px;
  --r-btn:12px;
  --shadow:0 16px 40px rgba(0,0,0,.35);
  --shadow-lift:0 24px 60px rgba(0,0,0,.45);
  --font:"Inter","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:
    radial-gradient(900px 520px at 82% -8%, rgba(184,255,60,.06), transparent 62%),
    radial-gradient(760px 460px at 4% 4%, rgba(255,77,141,.05), transparent 60%),
    var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:600}
p{margin:0}
svg{display:block}
::selection{background:rgba(184,255,60,.28);color:#fff}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}

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

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;height:72px;z-index:60;
  background:rgba(10,13,22,.72);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:rgba(184,255,60,.12);border:1px solid rgba(184,255,60,.34);
  box-shadow:0 0 18px rgba(184,255,60,.12);
}
.brand-name{font-size:17px;font-weight:700;letter-spacing:.02em;line-height:1.2}
.brand-sub{display:block;font-size:12px;letter-spacing:.14em;color:var(--dim);line-height:1.4}
.nav-chips{
  display:flex;align-items:center;gap:4px;padding:5px;border-radius:999px;
  background:rgba(255,255,255,.04);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.chip{
  padding:8px 14px;border-radius:999px;font-size:14px;color:var(--muted);
  border:1px solid transparent;white-space:nowrap;
  transition:color .18s ease,background .18s ease,border-color .18s ease,transform .18s ease;
}
.chip:hover{color:var(--text);border-color:rgba(255,255,255,.18);transform:translateY(-1px)}
.chip.active{
  background:var(--accent);color:#0A0D16;font-weight:700;border-color:transparent;
  box-shadow:0 0 18px rgba(184,255,60,.26);
}
.chip.active:hover{color:#0A0D16;transform:none}
.header-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.link-quiet{font-size:14px;color:var(--muted);transition:color .18s ease}
.link-quiet:hover{color:var(--accent)}
.menu-btn{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);align-items:center;justify-content:center;
  background:rgba(255,255,255,.04);transition:border-color .18s ease;
}
.menu-btn:hover{border-color:var(--accent)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;white-space:nowrap;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--accent);color:#0A0D16;box-shadow:0 8px 24px rgba(184,255,60,.22)}
.btn-primary:hover{background:#c9ff62;transform:translateY(-1px);box-shadow:0 12px 28px rgba(184,255,60,.3)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px rgba(184,255,60,.2)}
.btn-secondary{background:transparent;border-color:var(--line);color:var(--text)}
.btn-secondary:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px)}
.btn-secondary:active{transform:translateY(0)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn[disabled]{opacity:.4;box-shadow:none;pointer-events:none}
.link-ghost{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--muted);transition:color .18s ease}
.link-ghost svg{transition:transform .18s ease}
.link-ghost:hover{color:var(--accent)}
.link-ghost:hover svg{transform:translateX(3px)}

/* ---------- drawer ---------- */
.drawer-backdrop{
  position:fixed;inset:0;z-index:70;background:rgba(4,6,12,.62);
  opacity:0;pointer-events:none;transition:opacity .26s ease;
}
.drawer-backdrop.show{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;z-index:80;width:330px;max-width:88vw;height:100%;
  background:#0C1120;border-left:1px solid var(--line);
  transform:translateX(105%);transition:transform .28s ease;
  display:flex;flex-direction:column;gap:18px;padding:20px;overflow-y:auto;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;font-size:15px;font-weight:600}
.drawer-nav{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.drawer-nav .chip{text-align:center;border-color:var(--line);padding:11px 8px}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px}

/* ---------- article shell ---------- */
.article-shell{padding:112px 0 0}
.crumb{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:13px;color:var(--dim);margin-bottom:22px}
.crumb a{transition:color .18s ease}
.crumb a:hover{color:var(--accent)}
.crumb .sep{color:rgba(255,255,255,.2)}
.crumb .current{color:var(--accent)}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:12px;letter-spacing:.04em;
  background:rgba(184,255,60,.14);color:var(--accent);
  border:1px solid rgba(184,255,60,.3);
}
.badge-pink{background:rgba(255,77,141,.12);color:#ff8fb6;border-color:rgba(255,77,141,.35)}

.article-head{padding-bottom:30px;border-bottom:1px solid var(--line)}
.article-title{
  font-size:38px;font-weight:700;line-height:1.3;letter-spacing:.01em;
  margin:16px 0 18px;overflow-wrap:break-word;
}
.meta-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:13px;color:var(--muted)}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.22)}

.article-grid{
  display:grid;grid-template-columns:minmax(0,760px) 240px;gap:48px;
  justify-content:center;align-items:start;padding:40px 0 0;
}
.article-main{min-width:0}

/* ---------- prose ---------- */
.prose{font-size:16px;line-height:1.85;color:var(--text);overflow-wrap:break-word}
.prose p{margin:0 0 1.4em;color:#D7DEEB}
.prose h2{
  position:relative;font-size:26px;font-weight:600;line-height:1.35;
  margin:48px 0 18px;padding-left:16px;color:var(--text);
}
.prose h2::before{
  content:"";position:absolute;left:0;top:.28em;width:4px;height:20px;
  border-radius:3px;background:var(--accent);
}
.prose h3{font-size:20px;font-weight:600;margin:32px 0 12px;color:var(--text)}
.prose h4{font-size:17px;font-weight:600;margin:24px 0 10px;color:var(--text)}
.prose ul,.prose ol{margin:0 0 1.4em;padding-left:1.2em}
.prose li{margin:.4em 0;color:#D7DEEB}
.prose li::marker{color:var(--accent)}
.prose a{color:var(--accent);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.prose a:hover{color:#d4ff7a}
.prose blockquote{
  margin:26px 0;padding:20px 22px;border-left:3px solid var(--accent);
  background:rgba(255,255,255,.03);border-radius:0 12px 12px 0;color:var(--muted);
}
.prose blockquote p:last-child{margin-bottom:0}
.prose img{border-radius:var(--r-img);border:1px solid var(--line);margin:22px 0 10px}
.prose figure{margin:22px 0}
.prose figcaption{font-size:13px;color:var(--dim);text-align:center;margin-top:10px}
.prose pre{
  background:var(--panel-2);border:1px solid var(--line);border-radius:14px;
  padding:16px 18px;overflow-x:auto;font-size:14px;line-height:1.7;margin:22px 0;
}
.prose code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.94em}
.prose :not(pre) > code{
  background:rgba(255,255,255,.06);border:1px solid var(--line);
  border-radius:6px;padding:2px 6px;color:#d9e6c4;
}
.prose table{width:100%;border-collapse:collapse;font-size:14px;margin:22px 0;border:1px solid var(--line)}
.prose th,.prose td{padding:10px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.prose thead th{background:rgba(255,255,255,.05);font-weight:600;color:var(--text)}
.prose tbody tr:nth-child(even){background:rgba(255,255,255,.025)}
.prose hr{border:0;border-top:1px solid var(--line);margin:36px 0}

.article-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:48px;padding-top:32px;border-top:1px solid var(--line)}

/* ---------- related ---------- */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap}
.section-head h2{font-size:30px;font-weight:600}
.section-sub{font-size:14px;color:var(--muted);margin-top:8px}
.related{padding:88px 0 0}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-card{
  display:flex;flex-direction:column;background:var(--panel);
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.post-card:hover{transform:translateY(-2px);border-color:rgba(184,255,60,.32);box-shadow:var(--shadow)}
.post-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--panel-2)}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.post-card:hover .post-thumb img{transform:scale(1.03)}
.post-thumb .badge{position:absolute;top:12px;left:12px;background:rgba(184,255,60,.9);color:#0A0D16;border-color:transparent}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-body h3{font-size:18px;font-weight:600;line-height:1.45}
.post-body p{font-size:14px;color:var(--muted);line-height:1.7}
.post-meta{display:flex;align-items:center;gap:10px;margin-top:auto;font-size:13px;color:var(--dim)}
.post-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.2)}

/* ---------- empty state ---------- */
.empty-state{
  border:1.5px dashed rgba(255,255,255,.14);border-radius:var(--r-panel);
  padding:56px 28px;text-align:center;background:rgba(255,255,255,.015);
}
.empty-state svg{margin:0 auto 16px}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:20px}

/* ---------- toc ---------- */
.article-side{min-width:0}
.toc{
  position:sticky;top:100px;background:var(--panel);border:1px solid var(--line);
  border-radius:var(--r-card);padding:20px 18px;
}
.toc-title{font-size:13px;letter-spacing:.08em;color:var(--dim);margin-bottom:12px}
.toc-list{list-style:none}
.toc-list li{margin:0}
.toc-list a{
  display:block;font-size:13px;line-height:1.6;color:var(--muted);
  padding:7px 0 7px 12px;border-left:2px solid transparent;
  transition:color .18s ease,border-color .18s ease;
}
.toc-list a:hover{color:var(--text)}
.toc-list a.active{color:var(--accent);border-left-color:var(--accent)}
.toc-empty{font-size:13px;color:var(--dim);display:none}

/* ---------- footer ---------- */
.site-footer{background:#070A11;border-top:1px solid var(--line);margin-top:96px;padding:60px 0 28px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.25fr;gap:40px}
.foot-brand .brand{margin-bottom:16px}
.foot-brand p{font-size:14px;color:var(--muted);line-height:1.75;margin-bottom:18px;max-width:280px}
.foot-qr{
  width:96px;height:96px;border-radius:12px;border:1px dashed rgba(255,255,255,.18);
  display:grid;place-items:center;font-size:12px;color:var(--dim);background:rgba(255,255,255,.02);
}
.foot-note{font-size:12px;color:var(--dim);margin-top:10px;line-height:1.6}
.foot-col h4{font-size:13px;letter-spacing:.1em;color:var(--dim);font-weight:600;margin-bottom:16px}
.foot-col ul{list-style:none}
.foot-col li{margin-bottom:10px}
.foot-col a{font-size:14px;color:var(--muted);display:inline-block;transition:color .18s ease,transform .18s ease}
.foot-col a:hover{color:var(--accent);transform:translateX(2px)}
.sub-form{display:flex;gap:8px;margin-top:14px}
.input{
  flex:1;min-width:0;background:rgba(255,255,255,.04);border:1px solid var(--line);
  border-radius:12px;padding:12px 14px;color:var(--text);font-size:14px;font-family:inherit;
  outline:none;transition:border-color .18s ease,box-shadow .18s ease;
}
.input::placeholder{color:var(--dim)}
.input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(184,255,60,.15)}
.input.error{border-color:var(--accent-2);box-shadow:0 0 0 3px rgba(255,77,141,.15)}
.foot-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--dim);
}
.fb-left{display:flex;gap:18px;flex-wrap:wrap;align-items:center}
.fb-left a{transition:color .18s ease}
.fb-left a:hover{color:var(--accent)}

/* ---------- back to top ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:50;width:46px;height:46px;border-radius:50%;
  display:grid;place-items:center;background:var(--panel);border:1px solid var(--line);
  color:var(--muted);opacity:0;pointer-events:none;
  transition:opacity .24s ease,transform .24s ease,color .18s ease,border-color .18s ease;
  box-shadow:var(--shadow);
}
.to-top.show{opacity:1;pointer-events:auto}
.to-top:hover{color:#0A0D16;background:var(--accent);border-color:var(--accent);transform:translateY(-2px)}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  .nav-chips,.link-quiet{display:none}
  .menu-btn{display:inline-flex}
  .header-inner{gap:12px}
}
@media (max-width:1024px){
  .article-grid{grid-template-columns:minmax(0,1fr);gap:36px}
  .toc{position:static}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:900px){
  .article-title{font-size:32px}
  .section-head h2{font-size:26px}
  .related{padding-top:72px}
}
@media (max-width:640px){
  .container{padding:0 20px}
  .article-shell{padding-top:96px}
  .article-title{font-size:26px}
  .prose{font-size:16px;line-height:1.85}
  .prose h2{font-size:22px;margin-top:36px}
  .prose h3{font-size:18px}
  .meta-row{font-size:12px;gap:10px}
  .card-grid{grid-template-columns:minmax(0,1fr)}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .btn{width:100%}
  .article-actions{flex-direction:column}
  .sub-form{flex-direction:column}
  .foot-bottom{flex-direction:column;align-items:flex-start}
  .to-top{right:16px;bottom:16px}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
:root{
  --bg:#0A0D16;
  --panel:#121829;
  --panel-2:#171F33;
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.16);
  --text:#E8ECF5;
  --muted:#98A3BB;
  --dim:#6B7690;
  --accent:#B8FF3C;
  --accent-soft:rgba(184,255,60,.10);
  --accent-2:#FF4D8D;
  --cyan:#5FE3D6;
  --r-card:18px;
  --r-panel:24px;
  --r-img:14px;
  --r-btn:12px;
  --shadow:0 16px 40px rgba(0,0,0,.35);
  --shadow-lg:0 24px 60px rgba(0,0,0,.45);
  --font:"Inter","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --header-h:72px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  padding-top:var(--header-h);
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4{
  margin:0;
  line-height:1.25;
  font-weight:600;
  letter-spacing:.01em;
}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}
@media (min-width:1280px){
  .container{max-width:1280px;}
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:90;
  height:var(--header-h);
  display:flex;
  align-items:center;
  background:rgba(10,13,22,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  width:100%;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-mark{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:12px;
  background:linear-gradient(150deg,rgba(184,255,60,.18),rgba(255,77,141,.12));
  border:1px solid rgba(184,255,60,.35);
  box-shadow:0 0 0 1px rgba(255,255,255,.04) inset;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:17px;font-weight:700;letter-spacing:.02em;}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.14em;}
.nav-chips{
  display:flex;
  align-items:center;
  gap:4px;
  padding:4px;
  border-radius:999px;
  background:rgba(255,255,255,.04);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.05);
  margin:0 auto;
}
.chip{
  display:inline-block;
  padding:8px 16px;
  border-radius:999px;
  font-size:14px;
  color:var(--muted);
  border:1px solid transparent;
  transition:color .18s ease,background .18s ease,border-color .18s ease,transform .18s ease;
  white-space:nowrap;
}
.chip:hover{
  color:var(--text);
  border-color:var(--line-strong);
  transform:translateY(-1px);
}
.chip:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
}
.chip.active{
  background:var(--accent);
  color:#0A0D16;
  font-weight:600;
  box-shadow:0 6px 18px rgba(184,255,60,.24);
}
.header-actions{
  display:flex;
  align-items:center;
  gap:14px;
  flex-shrink:0;
}
.link-quiet{
  font-size:14px;
  color:var(--muted);
  transition:color .18s ease;
}
.link-quiet:hover{color:var(--accent);}
.link-quiet:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px;}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  align-items:center;justify-content:center;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  border-radius:12px;
  color:var(--text);
  cursor:pointer;
  transition:border-color .18s ease,color .18s ease;
}
.nav-toggle:hover{border-color:var(--accent);color:var(--accent);}
.nav-toggle:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}

/* 移动抽屉 */
.mobile-drawer{
  position:fixed;
  top:0;right:0;
  height:100%;
  width:330px;
  max-width:88vw;
  background:#0C1120;
  border-left:1px solid var(--line);
  box-shadow:-24px 0 60px rgba(0,0,0,.5);
  transform:translateX(102%);
  transition:transform .28s ease;
  z-index:100;
  display:flex;
  flex-direction:column;
  padding:20px;
  gap:18px;
  overflow-y:auto;
}
.mobile-drawer.open{transform:translateX(0);}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-bottom:14px;
  border-bottom:1px solid var(--line);
}
.drawer-title{font-size:14px;color:var(--muted);letter-spacing:.1em;}
.drawer-close{
  width:36px;height:36px;
  display:grid;place-items:center;
  background:transparent;
  border:1px solid var(--line);
  border-radius:10px;
  color:var(--text);
  cursor:pointer;
}
.drawer-close:hover{border-color:var(--accent);color:var(--accent);}
.drawer-close:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.drawer-chips{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:10px;
}
.drawer-chips .chip{
  text-align:center;
  padding:10px 8px;
  border:1px solid var(--line);
  font-size:14px;
}
.drawer-chips .chip.active{border-color:transparent;}
.drawer-cta{margin-top:auto;padding-top:16px;border-top:1px solid var(--line);}
.btn-block{display:block;width:100%;text-align:center;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 24px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,color .18s ease;
  white-space:nowrap;
}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.btn-primary{
  background:var(--accent);
  color:#0A0D16;
  box-shadow:0 8px 24px rgba(184,255,60,.22),inset 0 1px 0 rgba(255,255,255,.35);
}
.btn-primary:hover{
  background:#c6ff5c;
  transform:translateY(-1px);
  box-shadow:0 14px 32px rgba(184,255,60,.3),inset 0 1px 0 rgba(255,255,255,.4);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px rgba(184,255,60,.22);}
.btn-secondary{
  background:transparent;
  color:var(--text);
  border-color:var(--line-strong);
}
.btn-secondary:hover{
  border-color:var(--accent);
  color:var(--accent);
  transform:translateY(-1px);
}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.4;box-shadow:none;pointer-events:none;}
.ghost-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  color:var(--accent);
  font-weight:600;
}
.ghost-link svg{transition:transform .18s ease;}
.ghost-link:hover svg{transform:translateX(3px);}
.ghost-link:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px;}

/* ---------- 通用徽章 / 标签 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 11px;
  border-radius:999px;
  font-size:12px;
  letter-spacing:.04em;
  background:rgba(184,255,60,.14);
  color:#C9FF75;
  border:1px solid rgba(184,255,60,.28);
}
.badge-pink{
  background:rgba(255,77,141,.12);
  color:#FF9BBC;
  border-color:rgba(255,77,141,.36);
}
.badge-cyan{
  background:rgba(95,227,214,.1);
  color:#8DF0E6;
  border-color:rgba(95,227,214,.3);
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.18em;
  color:var(--accent);
  text-transform:none;
}
.eyebrow::before{
  content:"";
  width:22px;height:2px;
  border-radius:2px;
  background:var(--accent);
}

/* ---------- 面包屑 ---------- */
.crumbs{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:var(--dim);
  margin-bottom:22px;
}
.crumbs a{color:var(--muted);transition:color .18s ease;}
.crumbs a:hover{color:var(--accent);}
.crumbs .sep{color:var(--dim);}
.crumbs .current{color:var(--accent);}

/* ---------- 小首屏 ---------- */
.page-hero{
  position:relative;
  padding:58px 0 68px;
  border-bottom:1px solid var(--line);
  background-image:linear-gradient(180deg,rgba(10,13,22,.88),rgba(10,13,22,.97)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:64px 64px;
  opacity:.5;
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:1;}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);
  gap:44px;
  align-items:end;
}
.hero-copy h1{
  font-size:44px;
  font-weight:700;
  margin:14px 0 16px;
  letter-spacing:-.01em;
}
.hero-copy .lead{
  max-width:620px;
  color:var(--muted);
  font-size:16px;
}
.hero-side{
  background:rgba(255,255,255,.045);
  border:1px solid var(--line-strong);
  border-radius:var(--r-panel);
  padding:24px;
  box-shadow:var(--shadow);
  display:flex;
  flex-direction:column;
  gap:16px;
}
.hero-side .side-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:14px;
  color:var(--muted);
}
.hero-side .side-row strong{color:var(--text);font-weight:600;}
.hero-side .side-actions{display:flex;gap:10px;flex-wrap:wrap;}
.version-pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:999px;
  font-size:13px;
  color:var(--accent);
  border:1px solid rgba(184,255,60,.35);
  background:rgba(184,255,60,.08);
}
.dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 0 4px rgba(184,255,60,.14);
  display:inline-block;
}

/* ---------- 区块通用 ---------- */
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-head{margin-bottom:40px;max-width:720px;}
.section-head h2{font-size:34px;margin-bottom:12px;}
.section-head p{color:var(--muted);font-size:15px;}
.section-head.split{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  max-width:none;
}

/* ---------- 步骤布局 ---------- */
.steps-layout{
  display:grid;
  grid-template-columns:236px minmax(0,1fr);
  gap:48px;
  align-items:start;
}
.step-nav{
  position:sticky;
  top:calc(var(--header-h) + 24px);
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:18px 14px;
  box-shadow:var(--shadow);
}
.step-nav .nav-title{
  font-size:12px;
  letter-spacing:.14em;
  color:var(--dim);
  padding:0 12px 12px;
  border-bottom:1px solid var(--line);
  margin-bottom:12px;
}
.step-nav a{
  display:flex;
  align-items:center;
  gap:12px;
  padding:11px 12px;
  border-radius:10px;
  font-size:14px;
  color:var(--muted);
  border-left:2px solid transparent;
  transition:color .18s ease,background .18s ease,border-color .18s ease;
}
.step-nav a span.num{
  font-size:12px;
  font-variant-numeric:tabular-nums;
  color:var(--dim);
}
.step-nav a:hover{color:var(--text);background:rgba(255,255,255,.04);}
.step-nav a.is-current{
  color:var(--accent);
  background:var(--accent-soft);
  border-left-color:var(--accent);
}
.step-nav a.is-current span.num{color:var(--accent);}
.step-nav a:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}

.step-stack{display:flex;flex-direction:column;gap:32px;}
.step-card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:32px;
  box-shadow:var(--shadow);
  display:grid;
  grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);
  gap:30px;
  align-items:start;
  transition:border-color .2s ease,transform .2s ease;
}
.step-card:hover{border-color:rgba(184,255,60,.28);transform:translateY(-2px);}
.step-head{display:flex;gap:16px;align-items:flex-start;}
.step-num{
  font-size:40px;
  font-weight:700;
  line-height:1;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;
}
.step-head h3{font-size:20px;margin-bottom:10px;}
.step-desc{color:var(--muted);font-size:15px;margin-bottom:18px;}
.step-list{display:flex;flex-direction:column;gap:10px;}
.step-list li{
  position:relative;
  padding-left:18px;
  font-size:14.5px;
  color:var(--muted);
}
.step-list li::before{
  content:"";
  position:absolute;
  left:0;top:11px;
  width:6px;height:6px;
  border-radius:2px;
  background:var(--accent);
}
.step-media{
  margin:0;
  border-radius:var(--r-img);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--panel-2);
  aspect-ratio:16/10;
}
.step-media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .3s ease;
}
.step-card:hover .step-media img{transform:scale(1.03);}

/* ---------- 准备清单 ---------- */
.prep-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:24px;
}
.prep-card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:30px;
  box-shadow:var(--shadow);
}
.prep-card h3{
  font-size:18px;
  margin-bottom:16px;
  display:flex;
  align-items:center;
  gap:10px;
}
.prep-card h3::before{
  content:"";
  width:4px;height:18px;
  border-radius:3px;
  background:var(--accent);
}
.prep-list{display:flex;flex-direction:column;gap:14px;}
.prep-list li{
  display:flex;
  gap:12px;
  font-size:14.5px;
  color:var(--muted);
  padding-bottom:14px;
  border-bottom:1px dashed rgba(255,255,255,.08);
}
.prep-list li:last-child{border-bottom:none;padding-bottom:0;}
.prep-list li b{color:var(--text);font-weight:600;display:block;font-size:15px;margin-bottom:2px;}
.prep-idx{
  flex-shrink:0;
  width:24px;height:24px;
  display:grid;place-items:center;
  border-radius:8px;
  font-size:12px;
  color:var(--accent);
  background:var(--accent-soft);
  border:1px solid rgba(184,255,60,.24);
}

/* ---------- 常见阻碍 ---------- */
.blocker-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:24px;
}
.blocker-card{
  background:var(--panel);
  border:1px solid var(--line);
  border-left:3px solid var(--accent);
  border-radius:var(--r-card);
  padding:28px;
  box-shadow:var(--shadow);
  transition:transform .2s ease,border-color .2s ease;
}
.blocker-card:hover{transform:translateY(-2px);border-color:rgba(184,255,60,.4);}
.blocker-card h3{font-size:18px;margin:14px 0 10px;}
.blocker-card p{font-size:14.5px;color:var(--muted);}
.blocker-fix{
  margin-top:16px;
  padding-top:14px;
  border-top:1px dashed rgba(255,255,255,.1);
  font-size:14px;
  color:var(--muted);
}
.blocker-fix b{color:var(--accent);font-weight:600;margin-right:6px;}
.blocker-wide{grid-column:span 2;}

/* ---------- CTA ---------- */
.cta-panel{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-panel);
  padding:48px;
  background:linear-gradient(135deg,rgba(184,255,60,.1),rgba(255,77,141,.08)),rgba(23,31,51,.72);
  border:1px solid rgba(255,255,255,.14);
  box-shadow:var(--shadow-lg),inset 0 1px 0 rgba(255,255,255,.12);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  flex-wrap:wrap;
}
.cta-panel h2{font-size:30px;margin-bottom:12px;}
.cta-panel p{color:var(--muted);max-width:620px;font-size:15px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#070A11;
  border-top:1px solid var(--line);
  padding:64px 0 0;
  margin-top:24px;
}
.foot-grid{
  display:grid;
  grid-template-columns:1.4fr .8fr .8fr 1.1fr;
  gap:40px;
  padding-bottom:48px;
}
.foot-brand p{
  color:var(--muted);
  font-size:14px;
  margin:16px 0;
  max-width:300px;
}
.foot-qr{
  width:96px;height:96px;
  display:grid;place-items:center;
  border-radius:12px;
  border:1px dashed rgba(255,255,255,.18);
  color:var(--dim);
  font-size:12px;
  background:rgba(255,255,255,.03);
}
.foot-note{font-size:12.5px;color:var(--dim);margin-top:10px;}
.foot-col h4{
  font-size:13px;
  letter-spacing:.12em;
  color:var(--muted);
  margin-bottom:16px;
  font-weight:600;
}
.foot-col ul{display:flex;flex-direction:column;gap:10px;}
.foot-col a{
  font-size:14px;
  color:var(--muted);
  transition:color .18s ease,transform .18s ease;
  display:inline-block;
}
.foot-col a:hover{color:var(--accent);transform:translateX(2px);}
.foot-col a:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px;}
.sub-form{display:flex;gap:8px;margin-top:12px;}
.input{
  flex:1;
  min-width:0;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  padding:11px 14px;
  color:var(--text);
  font-size:14px;
  font-family:inherit;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.input::placeholder{color:var(--dim);}
.input:focus{
  outline:none;
  border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(184,255,60,.15);
}
.foot-bottom{
  border-top:1px solid var(--line);
  padding:20px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--dim);
}
.fb-left{display:flex;align-items:center;gap:14px;flex-wrap:wrap;}
.fb-left a{color:var(--muted);transition:color .18s ease;}
.fb-left a:hover{color:var(--accent);}

/* ---------- 返回顶部 ---------- */
.back-top{
  position:fixed;
  right:24px;bottom:24px;
  width:46px;height:46px;
  display:grid;place-items:center;
  border-radius:50%;
  background:var(--panel-2);
  border:1px solid var(--line-strong);
  color:var(--text);
  cursor:pointer;
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  transition:opacity .22s ease,transform .22s ease,visibility .22s ease,border-color .18s ease,color .18s ease;
  z-index:80;
}
.back-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.back-top:hover{border-color:var(--accent);color:var(--accent);}
.back-top:focus-visible{outline:2px solid var(--accent);outline-offset:3px;}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .nav-chips{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-actions .link-quiet{display:none;}
  .hero-grid{grid-template-columns:1fr;gap:28px;}
  .hero-copy h1{font-size:38px;}
  .foot-grid{grid-template-columns:1.2fr 1fr 1fr;gap:32px;}
  .foot-col:last-child{grid-column:span 3;}
}
@media (max-width:900px){
  .container{padding:0 24px;}
  .section{padding:64px 0;}
  .section-tight{padding:48px 0;}
  .section-head h2{font-size:29px;}
  .steps-layout{grid-template-columns:1fr;gap:28px;}
  .step-nav{position:static;top:auto;display:grid;grid-template-columns:1fr 1fr;gap:6px;}
  .step-nav .nav-title{grid-column:span 2;}
  .step-card{grid-template-columns:1fr;gap:22px;padding:26px;}
  .prep-grid{grid-template-columns:1fr;}
  .blocker-grid{grid-template-columns:1fr;}
  .blocker-wide{grid-column:auto;}
  .cta-panel{padding:34px;}
  .cta-panel h2{font-size:25px;}
  .foot-grid{grid-template-columns:1fr 1fr;}
  .foot-col:last-child{grid-column:span 2;}
}
@media (max-width:640px){
  .container{padding:0 20px;}
  body{font-size:15px;}
  .page-hero{padding:40px 0 48px;}
  .hero-copy h1{font-size:29px;margin:12px 0 14px;}
  .hero-copy .lead{font-size:15px;}
  .hero-side{padding:20px;}
  .section{padding:52px 0;}
  .section-head h2{font-size:24px;}
  .step-nav{grid-template-columns:1fr;}
  .step-nav .nav-title{grid-column:auto;}
  .step-card{padding:22px;}
  .step-num{font-size:32px;}
  .btn{width:100%;}
  .btn-sm{width:auto;}
  .hero-side .side-actions .btn{width:100%;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .foot-grid{grid-template-columns:1fr;gap:28px;}
  .foot-col:last-child{grid-column:auto;}
  .foot-bottom{font-size:12.5px;}
  .sub-form{flex-direction:column;}
  .sub-form .btn{width:100%;}
  .back-top{right:16px;bottom:16px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important;}
}

/* roulang page: category3 */
:root{
  --bg:#0A0D16;
  --panel:#121829;
  --panel-2:#171F33;
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.16);
  --text:#E8ECF5;
  --muted:#98A3BB;
  --dim:#6B7690;
  --accent:#B8FF3C;
  --accent-2:#FF4D8D;
  --cyan:#5FE3D6;
  --on-accent:#0A0D16;
  --radius-card:18px;
  --radius-panel:24px;
  --radius-img:14px;
  --radius-btn:12px;
  --shadow-card:0 16px 40px rgba(0,0,0,.35);
  --shadow-float:0 24px 60px rgba(0,0,0,.45), inset 0 1px 0 rgba(255,255,255,.08);
  --section-gap:96px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease;}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.section{padding:var(--section-gap) 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap;}
.section-head h2{font-size:34px;font-weight:600;line-height:1.25;letter-spacing:.01em;}
.section-head p{color:var(--muted);font-size:15px;max-width:520px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.08em;color:var(--accent);
  padding:6px 12px;border:1px solid rgba(184,255,60,.35);border-radius:999px;
  background:rgba(184,255,60,.06);
}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:rgba(10,13,22,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  height:72px;display:flex;align-items:center;gap:20px;justify-content:space-between;
}
.brand{display:inline-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(160deg,rgba(184,255,60,.16),rgba(184,255,60,.04));
  border:1px solid rgba(184,255,60,.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:16px;font-weight:700;letter-spacing:.02em;}
.brand-sub{font-size:11px;color:var(--dim);letter-spacing:.14em;}
.nav-shell{
  display:flex;align-items:center;gap:6px;
  padding:6px;border-radius:999px;
  background:rgba(255,255,255,.04);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.nav-chips{display:flex;align-items:center;gap:6px;}
.chip{
  display:inline-flex;align-items:center;
  padding:8px 16px;border-radius:999px;
  font-size:14px;color:var(--muted);
  border:1px solid transparent;
  transition:transform .18s ease,color .18s ease,border-color .18s ease,background-color .18s ease;
}
.chip:hover{color:var(--text);border-color:var(--line-strong);transform:translateY(-1px);}
.chip.active{
  background:var(--accent);color:var(--on-accent);font-weight:600;
  border-color:var(--accent);
  box-shadow:0 0 0 1px rgba(184,255,60,.35),0 8px 20px rgba(184,255,60,.18);
}
.header-actions{display:flex;align-items:center;gap:14px;flex-shrink:0;}
.link-quiet{font-size:14px;color:var(--muted);}
.link-quiet:hover{color:var(--accent);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1.2;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:10px;}
.btn-primary{
  background:var(--accent);color:var(--on-accent);
  box-shadow:0 8px 24px rgba(184,255,60,.22),inset 0 1px 0 rgba(255,255,255,.35);
}
.btn-primary:hover{background:#c6ff5e;transform:translateY(-1px);box-shadow:0 12px 30px rgba(184,255,60,.3);}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px rgba(184,255,60,.2);}
.btn-secondary{
  background:transparent;color:var(--text);border:1px solid var(--line-strong);
}
.btn-secondary:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px);}
.btn:disabled{opacity:.4;box-shadow:none;cursor:not-allowed;transform:none;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line-strong);place-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

.drawer{
  position:fixed;inset:0 0 0 auto;width:min(86vw,340px);z-index:90;
  background:#0C111C;border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .28s ease;
  display:flex;flex-direction:column;gap:18px;padding:88px 22px 28px;
  overflow-y:auto;
}
.drawer.open{transform:translateX(0);}
.drawer-backdrop{
  position:fixed;inset:0;background:rgba(4,6,12,.62);z-index:85;
  opacity:0;pointer-events:none;transition:opacity .28s ease;
}
.drawer-backdrop.open{opacity:1;pointer-events:auto;}
.drawer-nav{display:grid;grid-template-columns:1fr 1fr;gap:10px;}
.drawer-nav a{
  padding:12px 14px;border-radius:12px;font-size:14px;
  border:1px solid var(--line);color:var(--muted);text-align:center;
}
.drawer-nav a.active{background:var(--accent);color:var(--on-accent);border-color:var(--accent);font-weight:600;}
.drawer-cta{margin-top:auto;display:grid;gap:10px;}
.drawer-close{
  position:absolute;top:20px;right:20px;width:38px;height:38px;border-radius:10px;
  border:1px solid var(--line-strong);display:grid;place-items:center;color:var(--muted);font-size:18px;
}

/* ---------- page hero ---------- */
main{padding-top:72px;}
.page-hero{
  position:relative;overflow:hidden;
  border-bottom:1px solid var(--line);
  background-image:linear-gradient(100deg,rgba(10,13,22,.96) 20%,rgba(10,13,22,.72) 62%,rgba(10,13,22,.9) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.055) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 30% 40%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 30% 40%,#000 0%,transparent 78%);
}
.page-hero .container{position:relative;z-index:2;padding-top:64px;padding-bottom:64px;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--dim);margin-bottom:26px;
}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .sep{color:rgba(255,255,255,.24);}
.breadcrumb .current{color:var(--accent);}
.hero-row{display:flex;align-items:flex-end;justify-content:space-between;gap:40px;flex-wrap:wrap;}
.hero-main{max-width:720px;}
.hero-main h1{
  font-size:52px;font-weight:700;line-height:1.2;letter-spacing:-.01em;
  margin:18px 0 18px;
}
.hero-main h1 em{font-style:normal;color:var(--accent);}
.hero-main p{color:var(--muted);font-size:16px;max-width:620px;}
.hero-side{display:flex;flex-direction:column;align-items:flex-end;gap:14px;}
.version-pill{
  display:inline-flex;align-items:center;gap:10px;
  padding:10px 18px;border-radius:999px;
  border:1px solid rgba(184,255,60,.4);
  background:rgba(184,255,60,.08);
  font-size:14px;font-weight:600;color:var(--accent);
}
.version-pill .dot-live{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(184,255,60,.16);}
.hero-side .hint{font-size:13px;color:var(--dim);}

/* ---------- stats strip ---------- */
.stats-strip{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:rgba(255,255,255,.015);
}
.stat{
  padding:28px 26px;position:relative;
}
.stat + .stat::before{
  content:"";position:absolute;left:0;top:24%;height:52%;width:1px;background:var(--line);
}
.stat .num{font-size:36px;font-weight:700;color:var(--accent);line-height:1.1;letter-spacing:-.01em;}
.stat .lab{margin-top:6px;font-size:13px;color:var(--muted);}

/* ---------- filter ---------- */
.filter-bar{
  display:flex;align-items:center;gap:12px;flex-wrap:nowrap;
  padding:22px 0 6px;overflow-x:auto;scrollbar-width:none;
}
.filter-bar::-webkit-scrollbar{display:none;}
.filter-chip{
  flex-shrink:0;
  padding:9px 18px;border-radius:999px;font-size:14px;color:var(--muted);
  border:1px solid var(--line);background:rgba(255,255,255,.02);
  transition:all .18s ease;
}
.filter-chip:hover{border-color:var(--accent);color:var(--accent);}
.filter-chip.is-on{background:var(--accent);color:var(--on-accent);border-color:var(--accent);font-weight:600;}
.filter-hint{margin-left:auto;font-size:13px;color:var(--dim);flex-shrink:0;}

/* ---------- version list ---------- */
.version-list{display:flex;flex-direction:column;gap:24px;margin-top:26px;}
.version-card{
  display:grid;grid-template-columns:132px 1fr;gap:28px;
  padding:30px 32px;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-panel);
  box-shadow:var(--shadow-card);
  transition:border-color .2s ease,transform .2s ease;
}
.version-card:hover{border-color:rgba(184,255,60,.28);transform:translateY(-2px);}
.version-card.is-latest{border-color:rgba(184,255,60,.4);box-shadow:var(--shadow-float);}
.v-left{border-right:1px solid var(--line);padding-right:24px;}
.v-num{
  font-size:40px;font-weight:700;line-height:1;color:var(--accent);letter-spacing:-.02em;
}
.v-date{margin-top:10px;font-size:13px;color:var(--muted);}
.v-stage{margin-top:14px;display:inline-flex;}
.tag{
  display:inline-flex;align-items:center;
  padding:4px 10px;border-radius:999px;
  font-size:12px;letter-spacing:.04em;font-weight:600;
  border:1px solid transparent;white-space:nowrap;
}
.tag-primary{background:rgba(184,255,60,.14);color:var(--accent);border-color:rgba(184,255,60,.34);}
.tag-opt{background:rgba(95,227,214,.12);color:var(--cyan);border-color:rgba(95,227,214,.3);}
.tag-ui{background:rgba(255,255,255,.06);color:var(--muted);border-color:var(--line-strong);}
.tag-safe{background:rgba(255,77,141,.12);color:var(--accent-2);border-color:rgba(255,77,141,.34);}
.tag-fix{background:rgba(184,255,60,.08);color:#CFE9A6;border-color:rgba(184,255,60,.22);}
.v-body h3{font-size:20px;font-weight:600;line-height:1.4;margin-bottom:16px;}
.v-items{display:flex;flex-direction:column;gap:14px;}
.v-items li{display:grid;grid-template-columns:6px auto 1fr;gap:12px;align-items:start;}
.v-items .bullet{
  width:6px;height:6px;border-radius:50%;background:var(--accent);margin-top:11px;
}
.v-items p{font-size:15px;color:var(--muted);line-height:1.75;}
.v-items p strong{color:var(--text);font-weight:600;}

/* ---------- spotlight ---------- */
.spotlight{
  display:grid;grid-template-columns:1.05fr .95fr;gap:0;
  margin-top:56px;
  border:1px solid var(--line);border-radius:var(--radius-panel);
  overflow:hidden;background:var(--panel-2);
}
.spotlight-media{position:relative;min-height:320px;}
.spotlight-media img{width:100%;height:100%;object-fit:cover;border-radius:0;opacity:.92;}
.spotlight-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(10,13,22,0) 40%,rgba(23,31,51,.9) 100%);
}
.spotlight-body{padding:40px 36px;display:flex;flex-direction:column;gap:16px;justify-content:center;}
.spotlight-body h3{font-size:24px;font-weight:600;line-height:1.35;}
.spotlight-body p{color:var(--muted);font-size:15px;}
.spotlight-points{display:flex;flex-direction:column;gap:10px;margin-top:4px;}
.spotlight-points li{
  display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--muted);
  padding-left:0;
}
.spotlight-points li::before{
  content:"";width:3px;height:16px;border-radius:2px;background:var(--accent);flex-shrink:0;margin-top:5px;
}

/* ---------- type list ---------- */
.type-list{margin-top:40px;border-top:1px solid var(--line);}
.type-item{
  display:grid;grid-template-columns:210px 1fr;gap:28px;
  padding:24px 4px;border-bottom:1px solid var(--line);
  align-items:start;
}
.type-item h3{font-size:17px;font-weight:600;display:flex;align-items:center;gap:10px;}
.type-item p{font-size:15px;color:var(--muted);}

/* ---------- faq ---------- */
.faq{display:flex;flex-direction:column;gap:12px;margin-top:8px;}
details{
  background:var(--panel);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:22px 24px;
  transition:border-color .2s ease,background-color .2s ease;
}
details[open]{border-color:rgba(184,255,60,.26);background:var(--panel-2);}
summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  font-size:16px;font-weight:600;
}
summary::-webkit-details-marker{display:none;}
summary .plus{
  width:26px;height:26px;flex-shrink:0;border-radius:50%;
  border:1px solid var(--line-strong);display:grid;place-items:center;
  color:var(--muted);transition:transform .22s ease,color .22s ease,border-color .22s ease;
}
summary .plus svg{transition:transform .22s ease;}
details[open] summary .plus{color:var(--accent);border-color:rgba(184,255,60,.5);}
details[open] summary .plus svg{transform:rotate(180deg);}
details p{margin-top:12px;color:var(--muted);font-size:15px;animation:fadeIn .2s ease;}
@keyframes fadeIn{from{opacity:0;transform:translateY(-4px);}to{opacity:1;transform:none;}}

/* ---------- cta ---------- */
.cta-panel{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
  padding:44px 44px;
  border-radius:var(--radius-panel);
  border:1px solid rgba(255,255,255,.12);
  background:linear-gradient(135deg,rgba(184,255,60,.12),rgba(23,31,51,.86) 46%,rgba(18,24,41,.96));
  box-shadow:var(--shadow-float);
}
.cta-panel::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.35),transparent);
}
.cta-copy h2{font-size:30px;font-weight:600;line-height:1.3;margin-bottom:10px;}
.cta-copy p{color:var(--muted);font-size:15px;max-width:520px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- footer ---------- */
.site-footer{
  background:#070A11;
  border-top:1px solid var(--line);
  padding:72px 0 0;
  margin-top:var(--section-gap);
}
.foot-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:48px;border-bottom:1px solid var(--line);
}
.foot-brand p{color:var(--muted);font-size:14px;margin:16px 0 18px;max-width:300px;}
.foot-qr{
  width:96px;height:96px;border-radius:12px;
  border:1px dashed rgba(255,255,255,.18);
  display:grid;place-items:center;
  font-size:12px;color:var(--dim);letter-spacing:.04em;
  background:rgba(255,255,255,.02);
}
.foot-note{font-size:12px;color:var(--dim);margin-top:10px;}
.foot-col h4{
  font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--text);
  margin-bottom:16px;
}
.foot-col ul{display:flex;flex-direction:column;gap:10px;}
.foot-col a{font-size:14px;color:var(--muted);display:inline-block;transition:color .18s ease,transform .18s ease;}
.foot-col a:hover{color:var(--accent);transform:translateX(2px);}
.sub-form{display:flex;gap:8px;margin-top:12px;}
.input{
  width:100%;padding:12px 14px;border-radius:12px;font-size:14px;
  background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--text);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.input::placeholder{color:var(--dim);}
.input:focus{
  outline:none;border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(184,255,60,.15);
}
.foot-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:22px 0 28px;font-size:13px;color:var(--dim);
}
.fb-left{display:flex;gap:18px;flex-wrap:wrap;align-items:center;}
.fb-left a:hover{color:var(--accent);}
.fb-right{display:flex;gap:18px;flex-wrap:wrap;align-items:center;}

/* ---------- back top ---------- */
#toTop{
  position:fixed;right:24px;bottom:24px;z-index:70;
  width:46px;height:46px;border-radius:50%;
  background:rgba(18,24,41,.9);border:1px solid var(--line-strong);
  color:var(--accent);display:grid;place-items:center;
  opacity:0;pointer-events:none;transform:translateY(8px);
  transition:opacity .25s ease,transform .25s ease,border-color .2s ease;
  backdrop-filter:blur(8px);
}
#toTop.show{opacity:1;pointer-events:auto;transform:none;}
#toTop:hover{border-color:var(--accent);}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  .nav-shell{display:none;}
  .header-actions .link-quiet{display:none;}
  .nav-toggle{display:grid;}
  .hero-main h1{font-size:40px;}
  .version-card{grid-template-columns:112px 1fr;padding:26px;}
  .v-num{font-size:34px;}
}
@media (max-width:900px){
  :root{--section-gap:72px;}
  .container{padding:0 24px;}
  .hero-row{align-items:flex-start;gap:24px;}
  .hero-side{align-items:flex-start;}
  .stats-strip{grid-template-columns:1fr 1fr;}
  .stat:nth-child(3)::before{display:none;}
  .stat{border-top:1px solid var(--line);}
  .stat:nth-child(1),.stat:nth-child(2){border-top:0;}
  .spotlight{grid-template-columns:1fr;}
  .spotlight-media{min-height:220px;}
  .spotlight-media::after{background:linear-gradient(180deg,rgba(10,13,22,0) 40%,rgba(23,31,51,.92) 100%);}
  .type-item{grid-template-columns:1fr;gap:8px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section-head h2{font-size:28px;}
}
@media (max-width:640px){
  :root{--section-gap:56px;}
  .container{padding:0 20px;}
  .header-inner{height:64px;}
  main{padding-top:64px;}
  .hero-main h1{font-size:30px;}
  .hero-main p{font-size:15px;}
  .page-hero .container{padding-top:44px;padding-bottom:44px;}
  .section-head h2{font-size:24px;}
  .version-card{grid-template-columns:1fr;gap:18px;padding:22px;}
  .v-left{border-right:0;border-bottom:1px solid var(--line);padding:0 0 16px;display:flex;align-items:center;gap:14px;flex-wrap:wrap;}
  .v-num{font-size:28px;}
  .v-date{margin-top:0;}
  .v-stage{margin-top:0;margin-left:auto;}
  .stats-strip{grid-template-columns:1fr;}
  .stat + .stat::before{display:none;}
  .stat{border-top:1px solid var(--line);padding:20px 18px;}
  .stat:nth-child(2){border-top:1px solid var(--line);}
  .filter-hint{display:none;}
  .cta-panel{padding:28px 22px;}
  .cta-copy h2{font-size:24px;}
  .cta-actions,.cta-actions .btn{width:100%;}
  .foot-grid{grid-template-columns:1fr;}
  .sub-form{flex-direction:column;}
  .sub-form .btn{width:100%;}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
  .hero-side .btn{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
}

/* roulang page: category4 */
:root{
  --bg:#0A0D16;
  --panel:#121829;
  --panel-2:#171F33;
  --line:rgba(255,255,255,.09);
  --text:#E8ECF5;
  --muted:#98A3BB;
  --dim:#6B7690;
  --accent:#B8FF3C;
  --accent-2:#FF4D8D;
  --cyan:#5FE3D6;
  --footer-bg:#070A11;
  --r-card:18px;
  --r-panel:24px;
  --r-img:14px;
  --r-btn:12px;
  --r-chip:999px;
  --r-input:12px;
  --shadow:0 16px 40px rgba(0,0,0,.35);
  --shadow-lift:0 24px 60px rgba(0,0,0,.45);
  --space-section:96px;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding-top:72px;
  background:var(--bg);
  color:var(--text);
  font-family:"Inter","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden;}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:600;}
p{margin:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}
.skip{
  position:absolute;left:-9999px;top:0;z-index:200;
  background:var(--accent);color:#0A0D16;padding:10px 18px;border-radius:0 0 12px 0;font-size:14px;
}
.skip:focus{left:0;}
.container{
  width:100%;max-width:var(--container);
  margin:0 auto;padding:0 32px;
}

/* ---------- 头部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  height:72px;
  background:rgba(10,13,22,.72);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  height:100%;display:flex;align-items:center;gap:20px;
  max-width:var(--container);margin:0 auto;padding:0 32px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:36px;height:36px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(184,255,60,.1);
  border:1px solid rgba(184,255,60,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:17px;font-weight:700;letter-spacing:.02em;}
.brand-sub{font-size:11px;color:var(--dim);letter-spacing:.08em;}
.nav-wrap{
  display:flex;align-items:center;
  padding:4px;
  border-radius:var(--r-chip);
  background:rgba(255,255,255,.04);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.05),inset 0 -1px 0 rgba(0,0,0,.3);
  margin-left:8px;
}
.nav-chips{display:flex;align-items:center;gap:4px;}
.chip{
  display:inline-block;
  padding:8px 15px;
  font-size:14px;
  color:var(--muted);
  border-radius:var(--r-chip);
  border:1px solid transparent;
  white-space:nowrap;
  transition:all .2s ease;
}
.chip:hover{
  color:var(--text);
  border-color:rgba(255,255,255,.18);
  transform:translateY(-1px);
}
.chip.active{
  background:var(--accent);
  color:#0A0D16;
  font-weight:600;
  border-color:transparent;
  box-shadow:0 0 0 1px rgba(184,255,60,.45),0 6px 18px rgba(184,255,60,.18);
}
.header-actions{display:flex;align-items:center;gap:16px;margin-left:auto;}
.head-link{font-size:14px;color:var(--muted);}
.head-link:hover{color:var(--accent);}
.nav-toggle{
  display:none;
  width:42px;height:42px;border-radius:12px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  color:var(--text);
  align-items:center;justify-content:center;
  cursor:pointer;
}
.nav-toggle:hover{border-color:rgba(184,255,60,.5);color:var(--accent);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;
  font-size:15px;font-weight:600;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,color .18s ease;
  line-height:1.2;
}
.btn-primary{
  background:var(--accent);
  color:#0A0D16;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.35),0 8px 24px rgba(184,255,60,.22);
}
.btn-primary:hover{
  background:#c4ff5c;
  transform:translateY(-1px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.4),0 14px 32px rgba(184,255,60,.3);
}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 1px 0 rgba(255,255,255,.3),0 4px 14px rgba(184,255,60,.2);}
.btn-secondary{
  background:transparent;
  color:var(--text);
  border-color:var(--line);
}
.btn-secondary:hover{
  border-color:rgba(184,255,60,.65);
  color:var(--accent);
  transform:translateY(-1px);
}
.btn-ghost{
  background:none;border:none;padding:0;
  color:var(--accent);font-size:14px;font-weight:600;
  display:inline-flex;align-items:center;gap:6px;
}
.btn-ghost svg{transition:transform .2s ease;}
.btn-ghost:hover svg{transform:translateX(3px);}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn-block{width:100%;}
.btn:disabled{opacity:.4;box-shadow:none;cursor:not-allowed;transform:none;}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--dim);
  margin-bottom:24px;
}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .sep{color:rgba(255,255,255,.18);}
.breadcrumb .current{color:var(--accent);}

/* ---------- 小 Hero ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  border-bottom:1px solid var(--line);
  background:
    linear-gradient(180deg,rgba(10,13,22,.86) 0%,rgba(10,13,22,.96) 70%,var(--bg) 100%),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:64px 64px;
  opacity:.5;
  mask-image:radial-gradient(ellipse at 60% 0%,#000 20%,transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse at 60% 0%,#000 20%,transparent 78%);
}
.hero-grid{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1.35fr .85fr;gap:48px;align-items:center;
  padding:72px 0 64px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.08em;
  color:var(--muted);
  padding:6px 14px;border-radius:var(--r-chip);
  border:1px solid rgba(255,77,141,.4);
  background:rgba(255,77,141,.08);
  margin-bottom:20px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--accent-2);}
.hero-title{
  font-size:44px;font-weight:700;letter-spacing:-.01em;
  margin-bottom:18px;
}
.hero-sub{
  font-size:17px;color:var(--muted);max-width:560px;
  margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.status-card{
  background:rgba(23,31,51,.72);
  border:1px solid var(--line);
  border-top:2px solid rgba(255,77,141,.6);
  border-radius:var(--r-panel);
  padding:26px;
  box-shadow:var(--shadow-lift);
}
.status-card h2{font-size:16px;margin-bottom:6px;}
.status-card .status-desc{font-size:13px;color:var(--dim);margin-bottom:18px;}
.status-row{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 0;
  border-bottom:1px dashed rgba(255,255,255,.1);
  font-size:14px;
}
.status-row:last-of-type{border-bottom:none;}
.status-row .key{color:var(--muted);}
.status-row .val{font-weight:600;font-size:14px;}
.val-accent{color:var(--accent);}
.val-rose{color:var(--accent-2);}

/* ---------- 板块通用 ---------- */
.section{padding:var(--space-section) 0;}
.section-alt{background:linear-gradient(180deg,rgba(18,24,41,.55),rgba(10,13,22,0));border-top:1px solid rgba(255,255,255,.04);border-bottom:1px solid rgba(255,255,255,.04);}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:40px;
}
.section-title{font-size:34px;font-weight:600;}
.section-desc{font-size:15px;color:var(--muted);margin-top:10px;max-width:640px;}
.link-more{font-size:14px;color:var(--accent);display:inline-flex;align-items:center;gap:6px;white-space:nowrap;}
.link-more svg{transition:transform .2s ease;}
.link-more:hover svg{transform:translateX(3px);}

/* ---------- 交错安全卡 ---------- */
.stagger-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start;}
.stagger-col-right{padding-top:32px;}
.safe-card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px;
  box-shadow:var(--shadow);
  transition:transform .22s ease,border-color .22s ease;
  margin-bottom:24px;
}
.safe-card:last-child{margin-bottom:0;}
.safe-card:hover{transform:translateY(-2px);border-color:rgba(184,255,60,.24);}
.safe-card .card-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px;}
.safe-card h3{font-size:20px;}
.safe-card p{font-size:15px;color:var(--muted);}
.badge{
  display:inline-flex;align-items:center;
  padding:4px 11px;border-radius:var(--r-chip);
  font-size:12px;letter-spacing:.04em;font-weight:600;
  white-space:nowrap;
}
.badge-accent{background:rgba(184,255,60,.16);color:var(--accent);border:1px solid rgba(184,255,60,.32);}
.badge-solid{background:var(--accent);color:#0A0D16;border:1px solid transparent;}
.badge-rose{background:rgba(255,77,141,.14);color:#FF8AB4;border:1px solid rgba(255,77,141,.38);}
.badge-line{background:transparent;color:var(--muted);border:1px solid var(--line);}
.mini-list{margin-top:16px;display:flex;flex-direction:column;gap:10px;}
.mini-list li{
  position:relative;padding-left:16px;
  font-size:14px;color:var(--muted);
}
.mini-list li::before{
  content:"";position:absolute;left:0;top:10px;
  width:6px;height:6px;border-radius:2px;background:var(--accent);
}
.safe-figure{
  margin-top:18px;overflow:hidden;border-radius:var(--r-img);
  border:1px solid var(--line);
}
.safe-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s ease;}
.safe-card:hover .safe-figure img{transform:scale(1.03);}

/* ---------- 风险提示面板 ---------- */
.risk-panel{
  border-left:3px solid var(--accent-2);
  background:linear-gradient(90deg,rgba(255,77,141,.08),rgba(18,24,41,.9));
  border-radius:0 var(--r-panel) var(--r-panel) 0;
  padding:32px;
  box-shadow:var(--shadow);
}
.risk-panel h3{font-size:22px;margin-bottom:8px;}
.risk-panel .risk-sub{font-size:14px;color:var(--muted);margin-bottom:22px;}
.risk-list{display:grid;gap:14px;margin-bottom:26px;}
.risk-list li{
  display:grid;grid-template-columns:auto 1fr;gap:14px;
  align-items:start;
  background:rgba(10,13,16,.45);
  border:1px solid rgba(255,255,255,.06);
  border-radius:14px;
  padding:16px 18px;
}
.risk-list .idx{
  width:26px;height:26px;border-radius:8px;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;
  color:#FF8AB4;border:1px solid rgba(255,77,141,.4);
}
.risk-list strong{display:block;font-size:15px;margin-bottom:4px;}
.risk-list span.txt{font-size:14px;color:var(--muted);}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:880px;}
details.faq{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:0;
  transition:border-color .2s ease;
}
details.faq[open]{border-color:rgba(184,255,60,.28);}
details.faq summary{
  cursor:pointer;list-style:none;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 24px;
  font-size:16px;font-weight:600;
}
details.faq summary::-webkit-details-marker{display:none;}
.faq-icon{
  flex-shrink:0;width:26px;height:26px;border-radius:8px;
  border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--muted);
  transition:transform .22s ease,color .22s ease,border-color .22s ease;
}
details.faq[open] .faq-icon{transform:rotate(180deg);color:var(--accent);border-color:rgba(184,255,60,.45);}
.faq-body{
  padding:0 24px 22px;
  color:var(--muted);font-size:15px;
  animation:fadeIn .2s ease;
}
.faq-body p + p{margin-top:10px;}
@keyframes fadeIn{from{opacity:0;transform:translateY(-4px);}to{opacity:1;transform:none;}}

/* ---------- CTA ---------- */
.cta-panel{
  position:relative;
  overflow:hidden;
  border:1px solid var(--line);
  border-radius:var(--r-panel);
  padding:44px;
  background:
    radial-gradient(700px 260px at 12% 0%,rgba(184,255,60,.12),transparent 70%),
    rgba(23,31,51,.82);
  box-shadow:var(--shadow-lift),inset 0 1px 0 rgba(255,255,255,.08);
  display:grid;grid-template-columns:1fr auto;gap:32px;align-items:center;
}
.cta-panel h2{font-size:30px;margin-bottom:12px;}
.cta-panel p{font-size:15px;color:var(--muted);max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--footer-bg);border-top:1px solid var(--line);padding:64px 0 0;margin-top:var(--space-section);}
.foot-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:48px;
}
.foot-brand .brand{margin-bottom:16px;}
.foot-brand p{font-size:14px;color:var(--muted);max-width:280px;}
.foot-qr{
  width:96px;height:96px;margin:18px 0 8px;
  border-radius:14px;
  border:1px dashed rgba(255,255,255,.16);
  display:flex;align-items:center;justify-content:center;
  font-size:12px;color:var(--dim);
  background:rgba(255,255,255,.03);
}
.foot-note{font-size:12px;color:var(--dim);}
.foot-col h4{
  font-size:13px;letter-spacing:.06em;color:var(--text);
  margin-bottom:16px;font-weight:600;
}
.foot-col ul{display:flex;flex-direction:column;gap:10px;}
.foot-col ul a{font-size:14px;color:var(--muted);display:inline-block;transition:color .2s ease,transform .2s ease;}
.foot-col ul a:hover{color:var(--accent);transform:translateX(2px);}
.sub-form{display:flex;gap:10px;margin-top:14px;}
.input{
  width:100%;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  border-radius:var(--r-input);
  padding:12px 14px;
  color:var(--text);
  font-size:14px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.input::placeholder{color:var(--dim);}
.input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(184,255,60,.15);}
.foot-bottom{
  border-top:1px solid var(--line);
  padding:20px 0 28px;
  display:flex;flex-wrap:wrap;align-items:center;gap:16px;
  font-size:13px;color:var(--dim);
}
.foot-bottom a{color:var(--dim);}
.foot-bottom a:hover{color:var(--accent);}
.foot-bottom .fb-right{margin-left:auto;}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:90;
  width:46px;height:46px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--panel-2);
  border:1px solid var(--line);
  color:var(--text);
  cursor:pointer;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease,border-color .2s ease,color .2s ease;
  box-shadow:var(--shadow);
}
.to-top.show{opacity:1;visibility:visible;transform:none;}
.to-top:hover{border-color:rgba(184,255,60,.6);color:var(--accent);}

/* ---------- 移动抽屉 ---------- */
.backdrop{
  position:fixed;inset:0;z-index:110;
  background:rgba(4,6,12,.66);
  opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;
}
.backdrop.show{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:120;
  width:min(340px,86vw);
  background:#0D1220;
  border-left:1px solid var(--line);
  padding:22px;
  display:flex;flex-direction:column;gap:18px;
  transform:translateX(102%);
  transition:transform .28s ease;
  overflow-y:auto;
}
.drawer.show{transform:none;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-close{
  width:40px;height:40px;border-radius:12px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  color:var(--text);
  display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;
}
.drawer-close:hover{color:var(--accent);border-color:rgba(184,255,60,.5);}
.drawer-chips{display:grid;grid-template-columns:1fr 1fr;gap:10px;}
.drawer-chips .chip{text-align:center;padding:11px 8px;border:1px solid var(--line);}
.drawer-chips .chip.active{border-color:transparent;}
.drawer-cta{margin-top:auto;}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .nav-wrap{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-actions .head-link{display:none;}
  .hero-grid{grid-template-columns:1fr;gap:36px;padding:56px 0 48px;}
  .hero-title{font-size:38px;}
  .status-card{max-width:520px;}
}
@media (max-width:900px){
  :root{--space-section:72px;}
  .container,.header-inner{padding:0 24px;}
  .stagger-grid{grid-template-columns:1fr;}
  .stagger-col-right{padding-top:0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;}
  .section-title{font-size:28px;}
  .cta-panel{grid-template-columns:1fr;padding:32px;}
  .cta-actions .btn{flex:1 1 auto;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .risk-panel{padding:26px 22px;}
}
@media (max-width:640px){
  :root{--space-section:56px;}
  body{font-size:15px;}
  .container,.header-inner{padding:0 20px;}
  .hero-title{font-size:30px;}
  .hero-sub{font-size:15px;}
  .section-title{font-size:24px;}
  .safe-card{padding:22px;}
  .btn{width:100%;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .cta-actions{flex-direction:column;align-items:stretch;}
  .sub-form{flex-direction:column;}
  .sub-form .btn{width:100%;}
  .foot-grid{grid-template-columns:1fr;}
  .foot-bottom{flex-direction:column;align-items:flex-start;}
  .foot-bottom .fb-right{margin-left:0;}
  .status-row{flex-wrap:wrap;}
  .cta-panel h2{font-size:24px;}
  .to-top{right:16px;bottom:16px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important;}
}

/* roulang page: category5 */
:root{
  --bg:#0A0D16;
  --panel:#121829;
  --panel-2:#171F33;
  --line:rgba(255,255,255,.09);
  --text:#E8ECF5;
  --muted:#98A3BB;
  --dim:#6B7690;
  --accent:#B8FF3C;
  --accent-2:#FF4D8D;
  --cyan:#5FE3D6;
  --r-card:18px;
  --r-panel:24px;
  --r-img:14px;
  --r-btn:12px;
  --shadow:0 16px 40px rgba(0,0,0,.35);
  --shadow-lift:0 24px 60px rgba(0,0,0,.45), inset 0 1px 0 rgba(255,255,255,.08);
  --head-h:72px;
  --sec:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:"Inter","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
button,input{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:600;}
p{margin:0;}
ul{list-style:none;margin:0;padding:0;}
::selection{background:rgba(184,255,60,.28);color:#fff;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}

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

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
}
.btn-primary{
  background:var(--accent);color:#0A0D16;border-color:rgba(184,255,60,.6);
  box-shadow:0 8px 24px rgba(184,255,60,.22), inset 0 1px 0 rgba(255,255,255,.35);
}
.btn-primary:hover{background:#c6ff5e;transform:translateY(-1px);box-shadow:0 12px 30px rgba(184,255,60,.3), inset 0 1px 0 rgba(255,255,255,.4);}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 14px rgba(184,255,60,.2);}
.btn-secondary{background:transparent;color:var(--text);border-color:var(--line);}
.btn-secondary:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px);}
.btn-ghost{background:none;border:none;color:var(--accent);padding:0;height:auto;font-weight:600;}
.btn-ghost svg{transition:transform .2s ease;}
.btn-ghost:hover svg{transform:translateX(3px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn:disabled{opacity:.4;box-shadow:none;cursor:not-allowed;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:90;height:var(--head-h);
  background:rgba(10,13,22,.72);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.head-inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;display:grid;place-items:center;border-radius:12px;
  background:linear-gradient(150deg,rgba(184,255,60,.18),rgba(184,255,60,.04));
  border:1px solid rgba(184,255,60,.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:17px;font-weight:700;letter-spacing:.02em;}
.brand-sub{font-size:11px;color:var(--dim);letter-spacing:.14em;}
.nav-chips{
  display:flex;align-items:center;gap:4px;padding:5px;border-radius:999px;
  background:rgba(255,255,255,.04);box-shadow:inset 0 1px 0 rgba(255,255,255,.05);
}
.chip{
  display:inline-flex;align-items:center;height:34px;padding:0 14px;border-radius:999px;
  font-size:14px;color:var(--muted);border:1px solid transparent;white-space:nowrap;
  transition:all .2s ease;
}
.chip:hover{color:var(--text);border-color:rgba(255,255,255,.18);transform:translateY(-1px);}
.chip.active{
  background:var(--accent);color:#0A0D16;font-weight:600;
  box-shadow:0 0 0 1px rgba(184,255,60,.45),0 8px 20px rgba(184,255,60,.18);
}
.chip.active:hover{transform:none;border-color:transparent;}
.head-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.head-link{font-size:14px;color:var(--muted);}
.head-link:hover{color:var(--accent);}
.burger{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);cursor:pointer;align-items:center;justify-content:center;
}
.burger span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;position:relative;}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px;}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}

/* 抽屉 */
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(340px,86vw);z-index:120;
  background:#0C1120;border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .3s ease;
  display:flex;flex-direction:column;padding:22px;overflow-y:auto;
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
.drawer-close{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--line);
  background:transparent;color:var(--text);cursor:pointer;font-size:18px;line-height:1;
}
.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;}
.drawer-grid .chip{height:44px;justify-content:center;border:1px solid var(--line);border-radius:12px;padding:0 8px;font-size:14px;}
.drawer-grid .chip.active{background:var(--accent);color:#0A0D16;border-color:transparent;}
.drawer .btn{margin-top:auto;width:100%;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(4,6,12,.6);z-index:110;opacity:0;pointer-events:none;
  transition:opacity .3s ease;backdrop-filter:blur(2px);
}
.drawer-mask.show{opacity:1;pointer-events:auto;}

/* ---------- 页面头部 ---------- */
.page-hero{
  position:relative;padding:calc(var(--head-h) + 48px) 0 64px;
  background-image:linear-gradient(180deg,rgba(10,13,22,.82) 0%,rgba(10,13,22,.94) 62%,var(--bg) 100%),url(/assets/images/backpic/back-2.webp);
  background-size:cover;background-position:center;border-bottom:1px solid var(--line);
}
.crumb{font-size:13px;color:var(--dim);display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-bottom:26px;}
.crumb a:hover{color:var(--text);}
.crumb .sep{color:rgba(255,255,255,.2);}
.crumb .now{color:var(--accent);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:999px;
  font-size:12px;letter-spacing:.08em;color:var(--accent);
  border:1px solid rgba(184,255,60,.32);background:rgba(184,255,60,.06);margin-bottom:20px;
}
.page-hero h1{font-size:clamp(27px,3.6vw,42px);font-weight:700;max-width:900px;letter-spacing:-.01em;}
.page-hero .lead{
  margin-top:18px;max-width:740px;color:var(--muted);font-size:16px;line-height:1.9;
}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.meta-pill{
  display:inline-flex;align-items:center;gap:8px;height:34px;padding:0 14px;border-radius:999px;
  font-size:13px;color:var(--muted);border:1px solid var(--line);background:rgba(255,255,255,.03);
}
.meta-pill b{color:var(--accent);font-weight:600;}

/* 搜索框 */
.search-wrap{margin-top:34px;max-width:640px;}
.search-box{
  display:flex;align-items:center;gap:8px;padding:7px 7px 7px 20px;border-radius:999px;
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px rgba(184,255,60,.15);}
.search-box input{
  flex:1;min-width:0;height:44px;border:none;background:transparent;outline:none;font-size:15px;
}
.search-box input::placeholder{color:var(--dim);}
.search-btn{
  width:44px;height:44px;flex:0 0 auto;border-radius:50%;border:none;background:var(--accent);
  color:#0A0D16;display:grid;place-items:center;cursor:pointer;transition:transform .2s ease,background .2s ease;
}
.search-btn:hover{background:#c6ff5e;transform:translateY(-1px);}
.search-tip{margin-top:12px;font-size:13px;color:var(--dim);}

/* ---------- 帮助主区 ---------- */
.section{padding:var(--sec) 0;}
.section-sm{padding:72px 0;}
.help-layout{display:grid;grid-template-columns:224px 1fr;gap:56px;align-items:start;}
.help-aside{position:sticky;top:calc(var(--head-h) + 28px);}
.aside-title{
  font-size:12px;letter-spacing:.12em;color:var(--dim);margin-bottom:14px;
}
.anchor-list{border-left:1px solid var(--line);}
.anchor-list a{
  display:block;padding:11px 0 11px 16px;margin-left:-1px;font-size:14px;color:var(--muted);
  border-left:2px solid transparent;transition:all .2s ease;
}
.anchor-list a:hover{color:var(--text);padding-left:19px;}
.anchor-list a.on{color:var(--accent);border-left-color:var(--accent);font-weight:600;}
.aside-card{
  margin-top:26px;padding:20px;border-radius:var(--r-card);background:var(--panel);
  border:1px solid var(--line);font-size:13px;color:var(--muted);line-height:1.8;
}
.aside-card strong{display:block;color:var(--text);font-size:15px;margin-bottom:8px;}

.faq-group{margin-bottom:56px;scroll-margin-top:calc(var(--head-h) + 24px);}
.faq-group:last-child{margin-bottom:0;}
.group-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px;flex-wrap:wrap;}
.group-head h2{font-size:clamp(22px,2.4vw,30px);font-weight:600;}
.group-head h2 .dot{color:var(--accent);}
.group-desc{color:var(--muted);font-size:14px;max-width:460px;}
.group-count{
  font-size:12px;letter-spacing:.04em;color:var(--accent);
  border:1px solid rgba(184,255,60,.3);background:rgba(184,255,60,.07);
  padding:4px 12px;border-radius:999px;
}

.faq-item{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  padding:0 24px;margin-bottom:12px;transition:border-color .2s ease,background .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:rgba(184,255,60,.3);background:var(--panel-2);}
.faq-item[open]{border-color:rgba(184,255,60,.35);box-shadow:var(--shadow);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  gap:18px;padding:22px 0;font-size:16px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::marker{content:"";}
.faq-icon{flex:0 0 auto;color:var(--dim);transition:transform .25s ease,color .25s ease;}
.faq-item[open] .faq-icon{transform:rotate(180deg);color:var(--accent);}
.faq-body{
  padding:16px 0 22px;margin-top:2px;border-top:1px dashed rgba(255,255,255,.09);
  color:var(--muted);font-size:15px;line-height:1.9;animation:fadeIn .2s ease both;
}
.faq-body p+p{margin-top:10px;}
.faq-body strong{color:var(--text);font-weight:600;}
@keyframes fadeIn{from{opacity:0;transform:translateY(-4px);}to{opacity:1;transform:translateY(0);}}

/* ---------- 联系卡 ---------- */
.contact-card{
  margin-top:8px;display:grid;grid-template-columns:1.15fr .85fr;gap:0;
  border-radius:var(--r-panel);overflow:hidden;
  background:rgba(23,31,51,.62);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border:1px solid rgba(255,255,255,.12);
  box-shadow:var(--shadow-lift);
  position:relative;
}
.contact-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(184,255,60,.6),transparent);
}
.contact-text{padding:44px 40px;}
.contact-text h2{font-size:clamp(22px,2.4vw,30px);}
.contact-text p{margin-top:14px;color:var(--muted);font-size:15px;max-width:440px;}
.contact-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.contact-media{position:relative;min-height:260px;overflow:hidden;}
.contact-media img{width:100%;height:100%;object-fit:cover;opacity:.85;}
.contact-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(23,31,51,.95),rgba(23,31,51,.1));
}

/* ---------- 页脚 ---------- */
.site-footer{background:#070A11;border-top:1px solid var(--line);padding:64px 0 0;margin-top:0;}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:48px;}
.foot-brand p{color:var(--muted);font-size:14px;margin:16px 0 20px;max-width:280px;}
.foot-qr{
  width:96px;height:96px;border-radius:12px;border:1px dashed rgba(255,255,255,.18);
  display:grid;place-items:center;font-size:12px;color:var(--dim);
  background:rgba(255,255,255,.02);
}
.foot-note{font-size:12px;color:var(--dim);margin-top:10px;}
.foot-col h4{font-size:13px;letter-spacing:.08em;color:var(--dim);font-weight:600;margin-bottom:16px;}
.foot-col ul li{margin-bottom:10px;}
.foot-col ul li a{font-size:14px;color:var(--muted);display:inline-block;transition:all .2s ease;}
.foot-col ul li a:hover{color:var(--accent);transform:translateX(2px);}
.sub-form{display:flex;gap:8px;margin-top:14px;}
.input{
  width:100%;height:44px;padding:0 14px;border-radius:12px;
  background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--text);
  font-size:14px;outline:none;transition:border-color .2s ease,box-shadow .2s ease;
}
.input::placeholder{color:var(--dim);}
.input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(184,255,60,.15);}
.foot-bottom{
  border-top:1px solid var(--line);padding:22px 0 28px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--dim);
}
.fb-left{display:flex;gap:18px;flex-wrap:wrap;align-items:center;}
.fb-left a:hover{color:var(--accent);}

/* 返回顶部 */
.to-top{
  position:fixed;right:26px;bottom:26px;width:48px;height:48px;border-radius:50%;
  border:1px solid var(--line);background:rgba(18,24,41,.92);color:var(--text);
  display:grid;place-items:center;cursor:pointer;z-index:80;
  opacity:0;pointer-events:none;transform:translateY(10px);
  transition:all .25s ease;backdrop-filter:blur(8px);
}
.to-top.show{opacity:1;pointer-events:auto;transform:translateY(0);}
.to-top:hover{border-color:var(--accent);color:var(--accent);}

/* ---------- 响应式 ---------- */
@media (min-width:1280px){
  .container{max-width:1240px;}
}
@media (max-width:1180px){
  .nav-chips,.head-actions .head-link,.head-actions .btn{display:none;}
  .burger{display:flex;}
  .help-layout{grid-template-columns:1fr;gap:32px;}
  .help-aside{position:static;}
  .anchor-list{display:flex;flex-wrap:wrap;gap:8px;border-left:none;}
  .anchor-list a{
    margin-left:0;border-left:none;border:1px solid var(--line);border-radius:999px;
    padding:8px 16px;
  }
  .anchor-list a:hover{padding-left:16px;border-color:rgba(184,255,60,.4);}
  .anchor-list a.on{border-color:var(--accent);background:rgba(184,255,60,.1);}
  .foot-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:900px){
  :root{--sec:72px;}
  .container{padding:0 24px;}
  .contact-card{grid-template-columns:1fr;}
  .contact-media{min-height:200px;order:-1;}
  .contact-media::after{background:linear-gradient(180deg,rgba(23,31,51,.2),rgba(23,31,51,.95));}
  .contact-text{padding:34px 26px;}
  .group-head{flex-direction:column;align-items:flex-start;}
  .page-hero{padding:calc(var(--head-h) + 36px) 0 48px;}
}
@media (max-width:640px){
  :root{--sec:56px;}
  .container{padding:0 20px;}
  body{font-size:15px;}
  .page-hero h1{font-size:26px;}
  .page-hero .lead{font-size:15px;}
  .faq-item{padding:0 18px;border-radius:16px;}
  .faq-item summary{font-size:15px;padding:18px 0;gap:12px;}
  .faq-body{font-size:14px;}
  .search-box{padding:6px 6px 6px 16px;}
  .search-btn{width:40px;height:40px;}
  .search-box input{height:40px;font-size:14px;}
  .contact-text{padding:28px 20px;}
  .contact-actions{flex-direction:column;align-items:stretch;}
  .contact-actions .btn{width:100%;}
  .btn{width:100%;}
  .sub-form{flex-direction:column;}
  .foot-grid{grid-template-columns:1fr;gap:32px;}
  .foot-bottom{flex-direction:column;gap:10px;}
  .hero-meta{gap:8px;}
  .meta-pill{font-size:12px;height:30px;padding:0 12px;}
  .to-top{right:16px;bottom:16px;width:44px;height:44px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
}