/* roulang page: index */
:root{
  --bg:#060D12;
  --bg-2:#0B1720;
  --panel:#101F2A;
  --brand:#1FE3C2;
  --brand-d:#12A88F;
  --brand-l:#7CF5E4;
  --accent:#FF7B3D;
  --accent-d:#D25A22;
  --violet:#7C5CFF;
  --text:#E8F4F6;
  --text-2:#93A9B3;
  --text-3:#5E7480;
  --line:rgba(255,255,255,.07);
  --line-brand:rgba(31,227,194,.45);
  --ok:#35D07F;
  --warn:#FFB020;
  --err:#FF5C5C;
  --r-card:16px;
  --r-panel:20px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 2px 8px rgba(0,0,0,.35);
  --sh-2:0 12px 32px rgba(0,0,0,.5);
  --sh-3:0 24px 60px rgba(0,0,0,.6);
  --ease:cubic-bezier(.2,.7,.3,1);
  --t:260ms;
}
*,*::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:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;background-color:transparent;}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
::selection{background:rgba(31,227,194,.28);color:#fff;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;position:relative;}
.section--tight{padding:72px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;flex-wrap:wrap;}
.section-head .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.14em;color:var(--brand);text-transform:uppercase;margin-bottom:14px;}
.section-head .eyebrow::before{content:"";width:20px;height:2px;background:var(--brand);border-radius:2px;}
h2.section-title{font-size:clamp(22px,2.6vw,32px);font-weight:700;letter-spacing:-.01em;line-height:1.3;position:relative;padding-top:16px;}
h2.section-title::before{content:"";position:absolute;top:0;left:0;width:40px;height:6px;border-radius:3px;background:linear-gradient(90deg,var(--brand),var(--brand-d));}
.section-desc{color:var(--text-2);font-size:15px;max-width:640px;margin-top:12px;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  transition:all var(--t) var(--ease);white-space:nowrap;
}
.btn-primary{
  background:var(--brand);color:#04120F;
  box-shadow:0 0 0 1px rgba(31,227,194,.25),0 0 28px rgba(31,227,194,.25);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(31,227,194,.4),0 0 36px rgba(31,227,194,.4);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:transparent;color:var(--brand);
  border:1px solid var(--line-brand);
}
.btn-ghost:hover{background:rgba(31,227,194,.12);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand);
  position:relative;padding:6px 0;
}
.btn-text::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:0;
  background:var(--brand);transition:width var(--t) var(--ease);
}
.btn-text:hover::after{width:100%;}
.btn-text i{transition:transform var(--t) var(--ease);font-size:12px;}
.btn-text:hover i{transform:translateX(4px);}

/* ---------- Badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.04em;
  background:rgba(31,227,194,.1);color:var(--brand-l);
  border:1px solid rgba(31,227,194,.22);
}
.badge--accent{background:rgba(255,123,61,.12);color:#FFB792;border-color:rgba(255,123,61,.3);}
.badge--muted{background:rgba(255,255,255,.05);color:var(--text-2);border-color:var(--line);}
.badge--ok{background:rgba(53,208,127,.12);color:#7EE8AF;border-color:rgba(53,208,127,.3);}
.badge--warn{background:rgba(255,176,32,.12);color:#FFD48A;border-color:rgba(255,176,32,.3);}

/* ---------- Header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  transition:background var(--t) var(--ease),backdrop-filter var(--t) var(--ease),border-color var(--t) var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:rgba(6,13,18,.85);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom-color:var(--line);
}
.header-inner{
  display:flex;align-items:center;gap:20px;
  min-height:72px;
}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;border-radius:11px;flex:0 0 auto;
  background:linear-gradient(140deg,var(--brand) 0%,var(--brand-d) 55%,var(--violet) 130%);
  display:flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:800;color:#04120F;
  box-shadow:0 0 0 1px rgba(31,227,194,.35),0 6px 18px rgba(31,227,194,.18);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text b{font-size:16px;font-weight:800;letter-spacing:.01em;}
.brand-text small{font-size:11px;color:var(--text-3);letter-spacing:.16em;text-transform:uppercase;}
.main-nav{margin-left:auto;display:flex;align-items:center;gap:4px;}
.main-nav a{
  display:inline-flex;align-items:center;
  padding:9px 16px;border-radius:999px;
  font-size:14px;font-weight:500;color:var(--text-2);
  transition:all var(--t) var(--ease);
}
.main-nav a:hover{color:var(--text);background:rgba(255,255,255,.05);}
.main-nav a.is-active{background:var(--brand);color:#04120F;font-weight:700;}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.icon-btn{
  width:44px;height:44px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--text-2);border:1px solid var(--line);
  transition:all var(--t) var(--ease);
}
.icon-btn:hover{color:var(--brand);border-color:var(--line-brand);background:rgba(31,227,194,.06);}
.nav-toggle{display:none;}

/* ---------- Off canvas ---------- */
.off-canvas{background:rgba(6,13,18,.96);}
.off-canvas .drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:20px;border-bottom:1px solid var(--line);
}
.drawer-links{padding:16px 20px;display:flex;flex-direction:column;gap:6px;}
.drawer-links a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 16px;border-radius:12px;
  font-size:15px;color:var(--text-2);
  border:1px solid transparent;
  transition:all var(--t) var(--ease);
}
.drawer-links a:hover{color:var(--text);border-color:var(--line);background:rgba(255,255,255,.04);}
.drawer-links a.is-active{background:rgba(31,227,194,.14);color:var(--brand-l);border-color:var(--line-brand);}
.drawer-foot{
  margin:16px 20px 28px;padding:16px;border-radius:16px;
  background:rgba(16,31,42,.62);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid rgba(31,227,194,.18);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
  font-size:12px;color:var(--text-3);
}
.drawer-foot .btn{width:100%;margin-bottom:12px;}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  min-height:600px;
  display:flex;align-items:center;
  padding:140px 0 96px;
  overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center right;
  opacity:.55;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(90deg,rgba(6,13,18,.94) 0%,rgba(6,13,18,.86) 42%,rgba(6,13,18,.42) 78%,rgba(6,13,18,.3) 100%),
    radial-gradient(760px 460px at 88% 12%,rgba(31,227,194,.24),transparent 68%);
}
.hero-grid-lines{
  position:absolute;inset:0;z-index:1;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.5) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:64px 64px;
  opacity:.05;
}
.hero .container{position:relative;z-index:3;}
.hero-copy{max-width:620px;}
.hero h1{
  font-size:clamp(30px,4.6vw,52px);
  font-weight:800;line-height:1.25;letter-spacing:-.02em;
  margin-bottom:20px;
}
.hero h1 em{font-style:normal;color:var(--brand);}
.hero-sub{
  font-size:17px;color:var(--text-2);max-width:520px;margin-bottom:32px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:32px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;}
.hero-badges .badge{font-size:12px;}

.hero-float{
  position:absolute;right:24px;top:50%;transform:translateY(-50%);
  width:302px;z-index:4;
  border-radius:var(--r-panel);
  background:rgba(16,31,42,.62);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid rgba(31,227,194,.22);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.09),var(--sh-3);
  padding:22px;
}
.hero-float .hf-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.hero-float .hf-head b{font-size:15px;}
.hero-float .hf-row{display:flex;align-items:center;justify-content:space-between;padding:11px 0;border-bottom:1px dashed var(--line);}
.hero-float .hf-row:last-of-type{border-bottom:0;}
.hero-float .hf-row span{font-size:13px;color:var(--text-2);}
.hero-float .hf-row strong{font-size:14px;font-variant-numeric:tabular-nums;color:var(--brand);}
.hero-float .hf-bar{height:6px;border-radius:999px;background:rgba(255,255,255,.07);overflow:hidden;margin-top:16px;}
.hero-float .hf-bar i{display:block;height:100%;width:72%;border-radius:999px;background:linear-gradient(90deg,var(--brand),var(--accent));}

/* ---------- Stats ---------- */
.stats-band{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:var(--bg-2);
}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.stat{
  padding:34px 26px;
  border-right:1px solid var(--line);
  display:flex;gap:16px;align-items:flex-start;
  transition:background var(--t) var(--ease);
}
.stat:last-child{border-right:0;}
.stat:hover{background:rgba(31,227,194,.04);}
.stat .si{
  width:44px;height:44px;border-radius:12px;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  background:rgba(31,227,194,.1);color:var(--brand);font-size:17px;
  border:1px solid rgba(31,227,194,.2);
}
.stat b{display:block;font-size:26px;font-weight:800;line-height:1.1;font-variant-numeric:tabular-nums;letter-spacing:-.01em;}
.stat span{display:block;font-size:13px;color:var(--text-2);margin-top:6px;}

/* ---------- Steps ---------- */
.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start;}
.step-card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:30px 26px 26px;
  box-shadow:var(--sh-1);
  transition:all var(--t) var(--ease);
  position:relative;overflow:hidden;
}
.step-card:nth-child(2){transform:translateY(-8px);}
.step-card::after{
  content:"";position:absolute;left:0;top:0;width:100%;height:2px;
  background:linear-gradient(90deg,var(--brand),transparent);
  opacity:0;transition:opacity var(--t) var(--ease);
}
.step-card:hover{border-color:var(--line-brand);box-shadow:var(--sh-2);transform:translateY(-4px);}
.step-card:nth-child(2):hover{transform:translateY(-12px);}
.step-card:hover::after{opacity:1;}
.step-num{
  font-size:34px;font-weight:800;line-height:1;letter-spacing:-.03em;
  color:transparent;-webkit-text-stroke:1px rgba(31,227,194,.55);
  font-variant-numeric:tabular-nums;margin-bottom:18px;display:block;
}
.step-icon{
  width:46px;height:46px;border-radius:13px;margin-bottom:18px;
  display:flex;align-items:center;justify-content:center;font-size:18px;
  background:linear-gradient(140deg,rgba(31,227,194,.18),rgba(124,92,255,.14));
  color:var(--brand-l);border:1px solid rgba(31,227,194,.22);
}
.step-card h3{font-size:19px;font-weight:600;margin-bottom:10px;}
.step-card p{font-size:14.5px;color:var(--text-2);margin-bottom:18px;}

/* ---------- Rewards ---------- */
.reward-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:28px;align-items:stretch;}
.reward-main{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-panel);
  overflow:hidden;box-shadow:var(--sh-1);transition:all var(--t) var(--ease);
  display:flex;flex-direction:column;
}
.reward-main:hover{border-color:var(--line-brand);box-shadow:var(--sh-2);}
.reward-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#0a141b;}
.reward-media img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease);}
.reward-main:hover .reward-media img{transform:scale(1.04);}
.reward-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(6,13,18,.82));opacity:.9;}
.reward-media .badge{position:absolute;left:18px;top:18px;z-index:2;}
.reward-body{padding:24px 24px 26px;display:flex;flex-direction:column;gap:12px;flex:1;}
.reward-body h3{font-size:20px;font-weight:600;}
.reward-body p{font-size:14.5px;color:var(--text-2);}
.reward-progress{margin-top:auto;}
.reward-progress .rp-head{display:flex;justify-content:space-between;font-size:13px;color:var(--text-2);margin-bottom:8px;}
.reward-progress .rp-head strong{color:var(--accent);font-variant-numeric:tabular-nums;}
.bar{height:8px;border-radius:999px;background:rgba(255,255,255,.07);overflow:hidden;}
.bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--brand),var(--accent));transition:width 600ms var(--ease);}

.reward-list{display:flex;flex-direction:column;gap:12px;}
.reward-item{
  display:flex;align-items:center;gap:14px;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);
  padding:18px 20px;transition:all var(--t) var(--ease);
}
.reward-item:hover{border-color:var(--line-brand);transform:translateX(4px);}
.reward-item .ri-icon{
  width:40px;height:40px;border-radius:11px;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  background:rgba(255,123,61,.1);color:var(--accent);font-size:15px;
  border:1px solid rgba(255,123,61,.22);
}
.reward-item .ri-body{flex:1;min-width:0;}
.reward-item h3{font-size:15.5px;font-weight:600;margin-bottom:3px;}
.reward-item p{font-size:13px;color:var(--text-3);}

/* ---------- Task panel (glass) ---------- */
.task-panel{
  border-radius:var(--r-panel);
  background:rgba(16,31,42,.62);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid rgba(31,227,194,.2);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.09),var(--sh-3);
  padding:30px 30px 24px;
}
.task-panel-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:22px;flex-wrap:wrap;}
.task-panel-head h3{font-size:17px;font-weight:600;}
.task-row{
  display:grid;grid-template-columns:180px 1fr 64px 92px;
  align-items:center;gap:18px;padding:15px 0;border-bottom:1px dashed var(--line);
}
.task-row:last-child{border-bottom:0;}
.task-row .tr-name{font-size:14.5px;color:var(--text);font-weight:500;}
.task-row .tr-num{font-size:14px;font-variant-numeric:tabular-nums;color:var(--text-2);text-align:right;}
.task-row .badge{justify-self:end;}

/* ---------- News / CMS ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;display:flex;flex-direction:column;
  transition:all var(--t) var(--ease);box-shadow:var(--sh-1);
}
.news-card:hover{transform:translateY(-4px);border-color:var(--line-brand);box-shadow:var(--sh-2);}
.news-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#0a141b;}
.news-media img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease);}
.news-card:hover .news-media img{transform:scale(1.04);}
.news-media::after{content:"";position:absolute;inset:0;background:rgba(6,13,18,.15);opacity:0;transition:opacity 320ms var(--ease);}
.news-card:hover .news-media::after{opacity:1;}
.news-body{padding:20px 20px 18px;display:flex;flex-direction:column;gap:10px;flex:1;}
.news-body h3{
  font-size:16.5px;font-weight:600;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body p{
  font-size:13.5px;color:var(--text-2);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.news-meta time{font-variant-numeric:tabular-nums;}
.news-meta i{color:var(--brand);font-size:12px;transition:transform var(--t) var(--ease);}
.news-card:hover .news-meta i{transform:translateX(4px);}
.empty-state{
  grid-column:1/-1;text-align:center;padding:64px 24px;
  border:1px dashed var(--line);border-radius:var(--r-panel);background:var(--bg-2);
}
.empty-state i{font-size:30px;color:var(--text-3);margin-bottom:16px;display:block;}
.empty-state p{color:var(--text-2);font-size:14.5px;margin-bottom:20px;}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;align-items:start;}
.faq-item{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;transition:border-color var(--t) var(--ease);
}
.faq-item.is-open{border-color:var(--line-brand);}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;text-align:left;
  padding:20px 22px;font-size:15.5px;font-weight:600;color:var(--text);
  min-height:44px;
}
.faq-q .plus{
  width:22px;height:22px;flex:0 0 auto;position:relative;
  transition:transform 280ms var(--ease);
}
.faq-q .plus::before,.faq-q .plus::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
}
.faq-q .plus::before{left:0;top:10px;width:22px;height:2px;}
.faq-q .plus::after{left:10px;top:0;width:2px;height:22px;}
.faq-item.is-open .faq-q .plus{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 280ms var(--ease);}
.faq-a p{padding:0 22px 22px 60px;font-size:15px;line-height:1.8;color:var(--text-2);}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:rgba(31,227,194,.08);
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.55) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.55) 1px,transparent 1px);
  background-size:56px 56px;opacity:.05;
}
.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:28px;padding:58px 0;flex-wrap:wrap;}
.cta-inner h2{font-size:clamp(21px,2.4vw,30px);font-weight:700;letter-spacing:-.01em;}
.cta-inner p{font-size:14.5px;color:var(--text-2);margin-top:10px;max-width:620px;}

/* ---------- Footer ---------- */
.site-footer{background:#04090D;border-top:1px solid var(--line);}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;
  padding:72px 0 48px;
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-brand b{font-size:16px;font-weight:800;}
.footer-col p{font-size:13.5px;color:var(--text-3);line-height:1.85;max-width:300px;}
.footer-col h4{font-size:14px;font-weight:700;margin-bottom:18px;letter-spacing:.04em;color:var(--text);}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col ul a{font-size:13.5px;color:var(--text-2);transition:all var(--t) var(--ease);}
.footer-col ul a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.socials{display:flex;gap:10px;margin-top:20px;}
.socials a{
  width:40px;height:40px;border-radius:11px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--text-2);transition:all var(--t) var(--ease);
}
.socials a:hover{color:var(--brand);border-color:var(--line-brand);background:rgba(31,227,194,.08);}
.f-sub label{display:block;font-size:13px;color:var(--text-2);margin-bottom:8px;}
.f-sub input{
  width:100%;min-height:46px;padding:0 14px;border-radius:var(--r-btn);
  background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--text);
  transition:all var(--t) var(--ease);outline:none;
}
.f-sub input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,227,194,.14);}
.f-sub .btn{width:100%;margin-top:12px;}
.f-sub small{display:block;font-size:12px;color:var(--text-3);margin-top:10px;line-height:1.7;}
.footer-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:12.5px;color:var(--text-3);
}
.footer-bottom .fb-links{display:flex;gap:18px;flex-wrap:wrap;}
.footer-bottom a{color:var(--text-3);transition:color var(--t) var(--ease);}
.footer-bottom a:hover{color:var(--brand);}
.to-top{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 16px;border-radius:999px;border:1px solid var(--line);
  color:var(--text-2);font-size:12.5px;transition:all var(--t) var(--ease);
}
.to-top:hover{color:var(--brand);border-color:var(--line-brand);background:rgba(31,227,194,.07);}

/* ---------- Responsive ---------- */
@media screen and (max-width:1200px){
  .hero-float{display:none;}
  .hero-copy{max-width:760px;}
}
@media screen and (max-width:1024px){
  .section{padding:64px 0;}
  .main-nav{display:none;}
  .header-actions .btn-primary{display:none;}
  .nav-toggle{display:inline-flex;}
  .stats-grid{grid-template-columns:repeat(2,1fr);}
  .stat:nth-child(2){border-right:0;}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line);}
  .steps-grid{grid-template-columns:1fr;gap:18px;}
  .step-card:nth-child(2){transform:none;}
  .step-card:nth-child(2):hover{transform:translateY(-4px);}
  .reward-grid{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:56px 0 36px;}
  .task-row{grid-template-columns:130px 1fr 56px 84px;gap:12px;}
}
@media screen and (max-width:768px){
  .hero{min-height:520px;padding:120px 0 72px;}
  .hero-sub{font-size:16px;}
  .cta-inner{padding:48px 0;flex-direction:column;align-items:flex-start;}
  .faq-grid{grid-template-columns:1fr;}
  .task-row{grid-template-columns:1fr;gap:8px;padding:16px 0;}
  .task-row .tr-num{text-align:left;}
  .task-row .badge{justify-self:start;}
}
@media screen and (max-width:640px){
  .container{padding:0 16px;}
  .section{padding:48px 0;}
  .news-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .hero{padding:112px 0 64px;}
  .hero-cta .btn{width:100%;}
  .hero-cta{gap:12px;}
  .task-panel{padding:22px 18px 16px;}
}
@media screen and (max-width:400px){
  .brand-text small{display:none;}
  .stat{padding:24px 18px;}
  .stat b{font-size:22px;}
}

/* roulang page: article */
:root{
  --bg:#060D12;
  --bg-2:#0B1720;
  --panel:#101F2A;
  --primary:#1FE3C2;
  --primary-d:#12A88F;
  --primary-l:#7CF5E4;
  --accent:#FF7B3D;
  --accent-d:#D25A22;
  --spark:#7C5CFF;
  --text:#E8F4F6;
  --text-2:#93A9B3;
  --text-3:#5E7480;
  --line:rgba(255,255,255,.07);
  --line-primary:rgba(31,227,194,.45);
  --ok:#35D07F;
  --warn:#FFB020;
  --err:#FF5C5C;
  --r-card:16px;
  --r-panel:20px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 2px 8px rgba(0,0,0,.35);
  --sh-2:0 12px 32px rgba(0,0,0,.5);
  --sh-3:0 24px 60px rgba(0,0,0,.6);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font:"PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,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:1.7;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--primary);text-decoration:none;transition:color .24s var(--ease),opacity .24s var(--ease)}
a:hover{color:var(--primary-l)}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
input,button,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- Header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:rgba(6,13,18,.72);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:background .28s var(--ease),border-color .28s var(--ease);
}
.site-header.is-scrolled{background:rgba(6,13,18,.92);border-bottom-color:var(--line)}
.header-inner{display:flex;align-items:center;gap:20px;min-height:72px}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);flex:0 0 auto}
.brand:hover{color:var(--text)}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:11px;
  display:grid;place-items:center;
  font-size:13px;font-weight:800;letter-spacing:.04em;color:#04120F;
  background:linear-gradient(135deg,var(--primary-l),var(--primary) 55%,var(--primary-d));
  box-shadow:0 0 0 1px rgba(31,227,194,.28),0 8px 22px rgba(31,227,194,.22);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;font-weight:800;font-size:16px;letter-spacing:-.01em}
.brand-text em{font-style:normal;font-size:11px;font-weight:600;color:var(--text-2);letter-spacing:.12em}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.main-nav a{
  display:inline-flex;align-items:center;height:38px;padding:0 14px;border-radius:999px;
  font-size:14px;font-weight:600;color:var(--text-2);
  transition:background .24s var(--ease),color .24s var(--ease);
}
.main-nav a:hover{color:var(--text);background:rgba(255,255,255,.05)}
.main-nav a.is-active{background:var(--primary);color:#04120F}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.icon-btn{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.03);color:var(--text-2);cursor:pointer;
  display:grid;place-items:center;transition:all .24s var(--ease);
}
.icon-btn:hover{color:var(--primary);border-color:var(--line-primary);background:rgba(31,227,194,.08)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:700;cursor:pointer;white-space:nowrap;
  transition:transform .24s var(--ease),background .24s var(--ease),color .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease),filter .24s var(--ease);
}
.btn:active{transform:translateY(0)}
.btn-primary{
  background:var(--primary);color:#04120F;
  box-shadow:0 0 0 1px rgba(31,227,194,.25),0 0 28px rgba(31,227,194,.25);
}
.btn-primary:hover{background:#37EBCE;color:#04120F;transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 0 1px rgba(31,227,194,.4),0 0 36px rgba(31,227,194,.38)}
.btn-ghost{background:transparent;border-color:var(--line-primary);color:var(--primary)}
.btn-ghost:hover{background:rgba(31,227,194,.12);color:var(--primary-l);transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.nav-toggle{display:none}

/* ---------- Drawer ---------- */
.drawer{position:fixed;inset:0;z-index:120;pointer-events:none}
.drawer-mask{position:absolute;inset:0;background:rgba(3,8,11,.66);opacity:0;transition:opacity .28s var(--ease)}
.drawer-panel{
  position:absolute;top:0;right:0;bottom:0;width:min(84vw,340px);
  background:rgba(16,31,42,.62);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-left:1px solid rgba(31,227,194,.22);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),var(--sh-3);
  transform:translateX(100%);transition:transform .3s var(--ease);
  padding:20px;display:flex;flex-direction:column;gap:18px;overflow-y:auto;
}
.drawer.is-open{pointer-events:auto}
.drawer.is-open .drawer-mask{opacity:1}
.drawer.is-open .drawer-panel{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-nav{display:flex;flex-direction:column;gap:6px}
.drawer-nav a{
  display:flex;align-items:center;min-height:46px;padding:0 14px;border-radius:12px;
  color:var(--text);font-weight:600;background:rgba(255,255,255,.03);border:1px solid var(--line);
}
.drawer-nav a:hover{border-color:var(--line-primary);color:var(--primary)}
.drawer-nav a.is-active{background:var(--primary);color:#04120F;border-color:transparent}
.drawer-foot{margin-top:auto;font-size:12px;color:var(--text-3);line-height:1.6}

/* ---------- Breadcrumb ---------- */
main{padding-top:72px}
.crumb-bar{border-bottom:1px solid var(--line);background:linear-gradient(180deg,rgba(11,23,32,.9),rgba(6,13,18,0))}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;padding:20px 0;font-size:13px;color:var(--text-3)}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:var(--text-3);opacity:.7}
.breadcrumb .current{color:var(--text);max-width:58ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- Article layout ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;padding:40px 0 96px;align-items:start}
.article-main{min-width:0}
.article-head{max-width:820px;border-bottom:1px solid var(--line);padding-bottom:24px;margin-bottom:32px}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 11px;border-radius:999px;
  font-size:12px;font-weight:700;letter-spacing:.02em;
}
.badge-cat{background:rgba(31,227,194,.12);color:var(--primary-l);border:1px solid rgba(31,227,194,.3)}
.badge-soft{background:rgba(255,123,61,.12);color:#FFB58C;border:1px solid rgba(255,123,61,.3)}
.article-head h1{
  font-size:clamp(26px,3.6vw,42px);font-weight:800;letter-spacing:-.02em;line-height:1.3;
  margin:16px 0 18px;color:var(--text);
}
.article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:18px;font-size:13px;color:var(--text-2)}
.article-meta .mi{display:inline-flex;align-items:center;gap:7px}
.article-meta i{color:var(--primary);font-size:12px}
.article-meta time{color:var(--text)}
.path-line{
  margin-top:14px;font-size:12.5px;color:var(--text-3);
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-btn);
  padding:8px 12px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.path-line b{color:var(--text-2);font-weight:600}

/* ---------- Post body ---------- */
.post-body{max-width:820px;font-size:16px;line-height:1.85;color:#CFE1E6;word-wrap:break-word}
.post-body>*:first-child{margin-top:0}
.post-body p{margin:0 0 1.1em}
.post-body h2{
  position:relative;font-size:clamp(20px,2.2vw,26px);font-weight:700;color:var(--text);
  line-height:1.4;margin:2.1em 0 .8em;padding-left:16px;
}
.post-body h2::before{
  content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;border-radius:2px;
  background:linear-gradient(180deg,var(--primary-l),var(--primary-d));
}
.post-body h3{font-size:19px;font-weight:600;color:var(--text);margin:1.7em 0 .6em}
.post-body h4{font-size:16.5px;font-weight:600;color:var(--text);margin:1.5em 0 .5em}
.post-body ul,.post-body ol{margin:0 0 1.2em;padding-left:1.35em}
.post-body ul li{list-style:disc;margin:.45em 0}
.post-body ol li{list-style:decimal;margin:.45em 0}
.post-body li::marker{color:var(--primary-d)}
.post-body strong{color:var(--text);font-weight:700}
.post-body blockquote{
  margin:1.5em 0;padding:16px 20px;border-left:3px solid var(--primary);
  background:rgba(31,227,194,.06);border-radius:0 var(--r-btn) var(--r-btn) 0;color:var(--text-2);
}
.post-body blockquote p:last-child{margin-bottom:0}
.post-body img{border-radius:var(--r-img);margin:1.5em auto;height:auto}
.post-body figure{margin:1.6em 0}
.post-body figcaption{text-align:center;font-size:13px;color:var(--text-3);margin-top:10px}
.post-body a{color:var(--primary);border-bottom:1px solid rgba(31,227,194,.35)}
.post-body a:hover{color:var(--primary-l);border-bottom-color:var(--primary-l)}
.post-body hr{border:none;border-top:1px solid var(--line);margin:2.2em 0}
.post-body code{
  background:var(--bg-2);border:1px solid var(--line);border-radius:6px;
  padding:2px 6px;font-size:14px;color:var(--primary-l);
}
.post-body pre{
  background:#08131A;border:1px solid var(--line);border-radius:var(--r-img);
  padding:16px 18px;overflow-x:auto;margin:1.5em 0;font-size:14px;line-height:1.7;
}
.post-body pre code{background:none;border:none;padding:0;color:#B9D6DA}
.post-body table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:14.5px;min-width:520px}
.post-body th,.post-body td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.post-body th{background:var(--bg-2);color:var(--text);font-weight:700}
.post-body .table-wrap{overflow-x:auto;margin:1.4em 0;border-radius:var(--r-img)}
.empty-state{
  max-width:820px;text-align:center;padding:64px 24px;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-panel);box-shadow:var(--sh-1);
}
.empty-state .ei{
  width:64px;height:64px;margin:0 auto 18px;border-radius:18px;display:grid;place-items:center;
  background:rgba(31,227,194,.1);color:var(--primary);font-size:24px;border:1px solid rgba(31,227,194,.24);
}
.empty-state h3{font-size:20px;font-weight:700;margin-bottom:8px}
.empty-state p{color:var(--text-2);font-size:14.5px;margin-bottom:20px}

/* ---------- Post actions ---------- */
.post-actions{
  max-width:820px;display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  margin-top:40px;padding:18px 20px;border:1px solid var(--line);border-radius:var(--r-card);background:var(--panel);
}
.post-actions .pa-left{display:flex;flex-wrap:wrap;gap:10px}

/* ---------- Side ---------- */
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:18px}
.side-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  padding:18px;box-shadow:var(--sh-1);transition:border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.side-card:hover{border-color:var(--line-primary);box-shadow:var(--sh-2)}
.side-card h4{font-size:14px;font-weight:700;color:var(--text);margin-bottom:12px;letter-spacing:.02em}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.tag-cloud span{
  display:inline-flex;align-items:center;height:28px;padding:0 10px;border-radius:999px;
  font-size:12.5px;color:var(--text-2);background:var(--bg-2);border:1px solid var(--line);
  transition:all .24s var(--ease);cursor:default;
}
.tag-cloud span:hover{color:var(--primary);border-color:var(--line-primary);background:rgba(31,227,194,.08)}
.side-list li{border-bottom:1px dashed var(--line);padding:9px 0;font-size:13.5px;color:var(--text-2)}
.side-list li:last-child{border-bottom:none}
.side-list a{color:var(--text-2)}
.side-list a:hover{color:var(--primary)}
.side-note{font-size:13px;color:var(--text-3);line-height:1.75}

/* ---------- CTA band ---------- */
.cta-band{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:
    linear-gradient(rgba(31,227,194,.08),rgba(31,227,194,.08)),
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px) 0 0/34px 34px,
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px) 0 0/34px 34px,
    var(--bg-2);
  padding:56px 0;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(20px,2.4vw,28px);font-weight:800;letter-spacing:-.01em;margin-bottom:8px}
.cta-inner p{color:var(--text-2);font-size:14.5px;max-width:60ch}

/* ---------- Footer ---------- */
.site-footer{background:#040A0E;border-top:1px solid var(--line);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;font-weight:800;font-size:15.5px;color:var(--text)}
.footer-col p{color:var(--text-2);font-size:13.5px;line-height:1.8;margin-bottom:16px}
.footer-col h4{font-size:14px;font-weight:700;color:var(--text);margin-bottom:14px;letter-spacing:.02em}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{color:var(--text-2);font-size:13.5px}
.footer-col ul a:hover{color:var(--primary);text-decoration:underline}
.socials{display:flex;gap:10px}
.socials a{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--text-2);
  transition:all .24s var(--ease);
}
.socials a:hover{color:var(--primary);border-color:var(--line-primary);background:rgba(31,227,194,.1)}
.f-sub{display:flex;flex-direction:column;gap:10px}
.f-sub label{font-size:13px;color:var(--text-2)}
.f-sub input{
  height:44px;border-radius:var(--r-btn);border:1px solid var(--line);
  background:var(--bg-2);padding:0 14px;font-size:14px;color:var(--text);
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.f-sub input::placeholder{color:var(--text-3)}
.f-sub input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(31,227,194,.16)}
.f-sub small{font-size:12px;color:var(--text-3);line-height:1.6}
.footer-bottom{
  margin-top:48px;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:12.5px;color:var(--text-3);
}
.fb-links{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.fb-links a{color:var(--text-3)}
.fb-links a:hover{color:var(--primary);text-decoration:underline}
.to-top{
  height:34px;padding:0 14px;border-radius:999px;border:1px solid var(--line);
  background:rgba(255,255,255,.03);color:var(--text-2);font-size:12.5px;cursor:pointer;
  transition:all .24s var(--ease);
}
.to-top:hover{color:var(--primary);border-color:var(--line-primary);background:rgba(31,227,194,.08)}

/* ---------- Responsive ---------- */
@media (max-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:36px}
}
@media (max-width:1024px){
  .container{padding:0 20px}
  .main-nav{display:none}
  .nav-toggle{display:grid}
  .header-actions .btn-glow{display:none}
  .article-layout{grid-template-columns:1fr;gap:0;padding:32px 0 72px}
  .article-side{position:static;margin-top:40px;flex-direction:row;flex-wrap:wrap}
  .article-side .side-card{flex:1 1 280px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:768px){
  .article-head h1{font-size:clamp(24px,6vw,32px)}
  .cta-band{padding:44px 0}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .post-body{font-size:15.5px;line-height:1.8}
}
@media (max-width:640px){
  .container{padding:0 16px}
  .header-inner{min-height:64px}
  main{padding-top:64px}
  .brand-text{font-size:15px}
  .breadcrumb{padding:16px 0}
  .breadcrumb .current{max-width:100%;white-space:normal}
  .post-actions{flex-direction:column;align-items:stretch}
  .post-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .article-side{flex-direction:column}
}
@media (max-width:400px){
  .brand-text em{display:none}
  .btn{height:44px;padding:0 16px;font-size:14px}
}

/* roulang page: category1 */
:root{
  --bg:#060D12; --bg-2:#0B1720; --panel:#101F2A;
  --primary:#1FE3C2; --primary-d:#12A88F; --primary-l:#7CF5E4;
  --accent:#FF7B3D; --accent-d:#D25A22; --spot:#7C5CFF;
  --text:#E8F4F6; --text-2:#93A9B3; --text-3:#5E7480;
  --line:rgba(255,255,255,.07); --line-p:rgba(31,227,194,.45);
  --ok:#35D07F; --warn:#FFB020; --err:#FF5C5C;
  --r-card:16px; --r-panel:20px; --r-btn:10px; --r-img:12px;
  --sh-1:0 2px 8px rgba(0,0,0,.35);
  --sh-2:0 12px 32px rgba(0,0,0,.5);
  --sh-3:0 24px 60px rgba(0,0,0,.6);
  --ease:cubic-bezier(.2,.7,.3,1);
  --glow:0 0 0 1px rgba(31,227,194,.25), 0 0 28px rgba(31,227,194,.25);
  --sec-pc:96px; --sec-tab:64px; --sec-mob:48px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;padding:0;font-family:var(--font);font-size:16px;line-height:1.7;
  color:var(--text);background:var(--bg);
  background-image:radial-gradient(900px 520px at 82% -8%,rgba(31,227,194,.10),transparent 62%),
                   radial-gradient(700px 420px at 4% 8%,rgba(124,92,255,.07),transparent 60%);
  background-repeat:no-repeat;background-attachment:fixed;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
body.no-scroll{overflow:hidden;}
h1,h2,h3,h4,h5,h6{margin:0 0 .6em;font-family:var(--font);color:var(--text);line-height:1.35;font-weight:700;}
h1{font-size:clamp(30px,4.6vw,52px);font-weight:800;letter-spacing:-.02em;line-height:1.25;}
h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;}
h3{font-size:19px;font-weight:600;}
p{margin:0 0 1.05em;font-size:16px;color:var(--text-2);line-height:1.85;}
p:last-child{margin-bottom:0;}
a{color:var(--primary);text-decoration:none;transition:color .24s var(--ease),opacity .24s var(--ease);}
a:hover{color:var(--primary-l);}
ul,ol{margin:0 0 1em;padding-left:1.15em;color:var(--text-2);}
li{margin-bottom:.45em;line-height:1.8;}
img{max-width:100%;display:block;border-radius:var(--r-img);}
button{font-family:inherit;}
input,select,textarea{font-family:inherit;font-size:15px;}
strong{color:var(--text);font-weight:700;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}
::-moz-selection{background:rgba(31,227,194,.32);color:#04120F;}
::selection{background:rgba(31,227,194,.32);color:#04120F;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

/* ---------- container ---------- */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:var(--sec-pc) 0;}
.section-tight{padding:64px 0;}
.section-head{margin-bottom:40px;max-width:760px;}
.section-head h2{position:relative;padding-top:20px;}
.section-head h2::before{content:"";position:absolute;top:0;left:0;width:40px;height:6px;border-radius:3px;background:linear-gradient(90deg,var(--primary),var(--primary-d));}
.section-head p{margin-top:10px;font-size:15px;color:var(--text-2);}
.tabular{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.02em;border:1px solid transparent;cursor:pointer;text-align:center;
  transition:transform .22s var(--ease),background-color .22s var(--ease),box-shadow .24s var(--ease),border-color .22s var(--ease),color .22s var(--ease);}
.btn-primary{background:var(--primary);color:#04120F;box-shadow:var(--glow);}
.btn-primary:hover{background:var(--primary-l);color:#04120F;transform:translateY(-2px);box-shadow:0 0 0 1px rgba(31,227,194,.35),0 0 36px rgba(31,227,194,.36);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--primary);border-color:var(--line-p);}
.btn-ghost:hover{background:rgba(31,227,194,.12);color:var(--primary-l);border-color:var(--primary);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:9px;}
.btn-block{width:100%;}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);position:relative;}
.link-more::after{content:"";position:absolute;left:0;bottom:-3px;width:0;height:1px;background:var(--primary);transition:width .28s var(--ease);}
.link-more:hover::after{width:100%;}
.link-more i{transition:transform .24s var(--ease);}
.link-more:hover i{transform:translateX(4px);}

/* ---------- header ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:900;background:transparent;transition:background-color .3s var(--ease),box-shadow .3s var(--ease),backdrop-filter .3s var(--ease);}
.site-header.is-scrolled{background:rgba(6,13,18,.85);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);box-shadow:0 1px 0 rgba(255,255,255,.07),0 8px 28px rgba(0,0,0,.42);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:76px;}
.brand{display:inline-flex;align-items:center;gap:10px;filter:none;}
.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:11px;flex:0 0 38px;
  background:linear-gradient(135deg,rgba(31,227,194,.9),rgba(18,168,143,.75));color:#04120F;font-size:13px;font-weight:800;letter-spacing:.06em;}
.brand-text{display:inline-flex;align-items:baseline;gap:6px;font-size:16px;font-weight:800;color:var(--text);letter-spacing:.01em;white-space:nowrap;}
.brand-text em{font-style:normal;font-size:12px;font-weight:600;color:var(--primary);letter-spacing:.08em;}
.main-nav{display:flex;align-items:center;gap:6px;padding:5px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.02);}
.main-nav a{display:inline-flex;align-items:center;height:38px;padding:0 16px;border-radius:999px;font-size:14px;font-weight:600;color:var(--text-2);white-space:nowrap;transition:color .22s var(--ease),background-color .22s var(--ease);}
.main-nav a:hover{color:var(--text);background:rgba(255,255,255,.05);}
.main-nav a.is-active{background:var(--primary);color:#04120F;box-shadow:0 0 0 1px rgba(31,227,194,.35),0 6px 20px rgba(31,227,194,.2);}
.header-actions{display:flex;align-items:center;gap:10px;}
.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:11px;border:1px solid var(--line);
  background:rgba(255,255,255,.03);color:var(--text-2);cursor:pointer;transition:color .22s var(--ease),border-color .22s var(--ease),background-color .22s var(--ease);}
.icon-btn:hover{color:var(--primary);border-color:var(--line-p);background:rgba(31,227,194,.08);}
.menu-btn{display:none;}
.search-bar{border-top:1px solid var(--line);background:rgba(6,13,18,.92);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);}
.search-form{display:flex;gap:12px;align-items:center;padding:16px 0;}
.search-form input{flex:1;height:48px;padding:0 16px;border-radius:var(--r-btn);border:1px solid var(--line);background:var(--bg-2);color:var(--text);}
.search-form input::placeholder{color:var(--text-3);}
.search-form input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(31,227,194,.16);}

/* ---------- drawer ---------- */
.drawer{position:fixed;top:0;right:0;bottom:0;width:min(86vw,340px);z-index:1001;padding:22px 20px 26px;overflow-y:auto;
  background:rgba(16,31,42,.62);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-left:1px solid rgba(31,227,194,.22);box-shadow:inset 0 1px 0 rgba(255,255,255,.12),-24px 0 60px rgba(0,0,0,.55);
  transform:translateX(105%);transition:transform .32s var(--ease);visibility:hidden;}
.drawer.is-open{transform:translateX(0);visibility:visible;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-head b{font-size:15px;color:var(--text);}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:transparent;color:var(--text-2);cursor:pointer;}
.drawer-nav{display:flex;flex-direction:column;gap:6px;margin-bottom:22px;}
.drawer-nav a{display:flex;align-items:center;min-height:48px;padding:0 14px;border-radius:12px;font-size:15px;font-weight:600;color:var(--text-2);border:1px solid transparent;}
.drawer-nav a:hover{background:rgba(255,255,255,.05);color:var(--text);}
.drawer-nav a.is-active{background:rgba(31,227,194,.14);border-color:var(--line-p);color:var(--primary-l);}
.drawer-cta{margin-bottom:16px;}
.drawer-note{font-size:12px;color:var(--text-3);line-height:1.7;}
.drawer-mask{position:fixed;inset:0;z-index:1000;background:rgba(3,8,11,.66);opacity:0;visibility:hidden;transition:opacity .3s var(--ease),visibility .3s var(--ease);}
.drawer-mask.is-open{opacity:1;visibility:visible;}

/* ---------- page hero ---------- */
.page-hero{position:relative;overflow:hidden;padding:124px 0 52px;min-height:280px;border-bottom:1px solid var(--line);}
.page-hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center right;opacity:.34;}
.page-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(6,13,18,.96) 0%,rgba(6,13,18,.86) 46%,rgba(6,13,18,.52) 100%);}
.page-hero::after{content:"";position:absolute;top:-140px;right:-80px;width:560px;height:560px;border-radius:50%;
  background:radial-gradient(circle at 50% 50%,rgba(31,227,194,.20),transparent 64%);pointer-events:none;}
.page-hero .container{position:relative;z-index:2;}

/* ---------- breadcrumb ---------- */
.breadcrumb{margin-bottom:18px;}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;margin:0;padding:0;}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px;margin:0;font-size:13px;color:var(--text-3);}
.breadcrumb li+li::before{content:"/";color:var(--text-3);}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb [aria-current="page"]{color:var(--primary-l);}

.page-hero h1{max-width:840px;margin-bottom:16px;}
.page-hero .hero-sub{max-width:640px;font-size:16px;color:var(--text-2);margin-bottom:22px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px;}
.badge{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;font-size:12px;font-weight:600;
  border:1px solid var(--line);background:rgba(255,255,255,.03);color:var(--text-2);}
.badge.is-primary{color:var(--primary-l);border-color:var(--line-p);background:rgba(31,227,194,.10);}
.badge.is-accent{color:#FFD9C4;border-color:rgba(255,123,61,.4);background:rgba(255,123,61,.12);}
.meta-line{display:flex;flex-wrap:wrap;gap:18px;font-size:13px;color:var(--text-3);}
.meta-line time{color:var(--text-2);font-variant-numeric:tabular-nums;}

/* ---------- intro ---------- */
.lead-block{border:1px solid var(--line);border-radius:var(--r-panel);background:var(--panel);padding:32px 34px;box-shadow:var(--sh-1);}
.lead-block .lead{font-size:17px;line-height:1.85;color:var(--text);}
.lead-block p+p{margin-top:12px;}

/* ---------- stats ---------- */
.stats-row{margin-top:0;}
.stat-card{height:100%;padding:22px;border-radius:var(--r-card);border:1px solid var(--line);background:var(--bg-2);transition:border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);}
.stat-card:hover{border-color:var(--line-p);transform:translateY(-4px);box-shadow:var(--sh-2);}
.stat-ico{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:11px;margin-bottom:14px;
  background:rgba(31,227,194,.12);border:1px solid var(--line-p);color:var(--primary);}
.stat-num{font-size:26px;font-weight:800;color:var(--text);font-variant-numeric:tabular-nums;letter-spacing:-.01em;}
.stat-num span{font-size:14px;font-weight:600;color:var(--text-2);margin-left:4px;}
.stat-label{font-size:13px;color:var(--text-3);margin-top:4px;}

/* ---------- anchor layout ---------- */
.anchor-layout{margin-top:8px;}
.anchor-aside{position:relative;}
.anchor-card{position:sticky;top:104px;padding:22px;border-radius:var(--r-card);border:1px solid var(--line);background:var(--bg-2);box-shadow:var(--sh-1);}
.anchor-title{font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--text-3);text-transform:uppercase;margin-bottom:14px;}
.anchor-list{list-style:none;margin:0 0 18px;padding:0;}
.anchor-list li{margin:0 0 4px;}
.anchor-list a{display:block;padding:10px 12px;border-radius:10px;font-size:14px;color:var(--text-2);border-left:2px solid transparent;transition:all .22s var(--ease);}
.anchor-list a:hover{background:rgba(255,255,255,.04);color:var(--text);}
.anchor-list a.is-active{background:rgba(31,227,194,.10);border-left-color:var(--primary);color:var(--primary-l);}
.anchor-help{padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3);}

.doc-block{padding:0 0 40px;margin-bottom:40px;border-bottom:1px solid var(--line);scroll-margin-top:110px;}
.doc-block:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0;}
.doc-block h2{position:relative;padding-left:16px;margin-bottom:18px;}
.doc-block h2::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:2px;background:linear-gradient(180deg,var(--primary),var(--primary-d));}
.doc-block h3{margin:26px 0 10px;color:var(--text);}
.doc-block p{font-size:16px;color:var(--text-2);line-height:1.9;}
.doc-block ul,.doc-block ol{margin:0 0 18px;padding-left:1.2em;}
.doc-block li{font-size:15px;color:var(--text-2);}
.doc-block li::marker{color:var(--primary);}

.tip-box{border-left:3px solid var(--primary);background:rgba(31,227,194,.06);border-radius:0 12px 12px 0;padding:18px 20px;margin:22px 0;}
.tip-box p{margin:0;font-size:15px;color:var(--text);}
.warn-box{border-left:3px solid var(--warn);background:rgba(255,176,32,.07);border-radius:0 12px 12px 0;padding:18px 20px;margin:22px 0;}
.warn-box p{margin:0;font-size:15px;color:#FFE0AC;}

.step-table{width:100%;border-collapse:collapse;margin:20px 0;font-size:14px;border-radius:var(--r-img);overflow:hidden;}
.step-table th,.step-table td{padding:13px 16px;text-align:left;border-bottom:1px solid var(--line);color:var(--text-2);}
.step-table th{background:rgba(255,255,255,.03);color:var(--text);font-weight:600;font-size:13px;letter-spacing:.04em;}
.step-table tr:last-child td{border-bottom:0;}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-img);background:var(--bg-2);}

.figure{margin:26px 0;}
.figure .ratio{position:relative;padding-top:56.25%;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);background:var(--bg-2);}
.figure .ratio img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .32s var(--ease);}
.figure:hover .ratio img{transform:scale(1.04);}
.figure figcaption{margin-top:10px;font-size:13px;color:var(--text-3);text-align:center;}

/* ---------- checklist ---------- */
.check-grid{display:grid;gap:16px;grid-template-columns:repeat(2,minmax(0,1fr));margin-top:8px;}
.check-item{display:flex;gap:14px;padding:18px;border-radius:var(--r-card);border:1px solid var(--line);background:var(--panel);transition:border-color .24s var(--ease),transform .24s var(--ease);}
.check-item:hover{border-color:var(--line-p);transform:translateY(-3px);}
.check-ico{flex:0 0 34px;width:34px;height:34px;border-radius:9px;display:inline-flex;align-items:center;justify-content:center;background:rgba(31,227,194,.12);color:var(--primary);font-size:14px;}
.check-item h3{margin:0 0 4px;font-size:16px;}
.check-item p{margin:0;font-size:14px;color:var(--text-2);}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px;}
.faq-item{border:1px solid var(--line);border-radius:var(--r-card);background:var(--bg-2);overflow:hidden;transition:border-color .24s var(--ease),box-shadow .24s var(--ease);}
.faq-item:hover{border-color:var(--line-p);}
.faq-item.is-open{border-color:var(--line-p);box-shadow:var(--sh-2);}
.faq-q{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;min-height:64px;padding:18px 22px;
  background:transparent;border:0;color:var(--text);font-size:16px;font-weight:600;text-align:left;cursor:pointer;}
.faq-q span{flex:1;}
.faq-icon{position:relative;flex:0 0 20px;width:20px;height:20px;transition:transform .28s var(--ease);}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--primary);border-radius:2px;}
.faq-icon::before{left:9px;top:2px;width:2px;height:16px;}
.faq-icon::after{left:2px;top:9px;width:16px;height:2px;}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s var(--ease);}
.faq-a-inner{padding:0 22px 20px;}
.faq-a-inner p{font-size:15px;line-height:1.8;color:var(--text-2);margin:0;}

/* ---------- cta ---------- */
.cta-band{position:relative;overflow:hidden;border:1px solid var(--line-p);border-radius:var(--r-panel);
  background:rgba(31,227,194,.08);padding:44px 40px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-band::before{content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:44px 44px;opacity:.5;}
.cta-band>*{position:relative;z-index:1;}
.cta-band h2{font-size:clamp(20px,2.2vw,28px);margin-bottom:8px;}
.cta-band p{margin:0;font-size:15px;color:var(--text-2);max-width:560px;}

/* ---------- footer ---------- */
.site-footer{margin-top:0;background:#04090D;border-top:1px solid var(--line);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:36px;padding-bottom:44px;}
.footer-col h4{font-size:15px;font-weight:700;color:var(--text);margin-bottom:16px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand b{font-size:15px;color:var(--text);}
.footer-col p{font-size:14px;color:var(--text-3);line-height:1.8;}
.footer-col ul{list-style:none;margin:0;padding:0;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{font-size:14px;color:var(--text-2);}
.footer-col ul a:hover{color:var(--primary);text-decoration:underline;}
.socials{display:flex;gap:10px;margin-top:18px;}
.socials a{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:11px;border:1px solid var(--line);background:rgba(255,255,255,.03);color:var(--text-2);}
.socials a:hover{color:var(--primary);border-color:var(--line-p);background:rgba(31,227,194,.1);}
.f-sub label{display:block;font-size:13px;color:var(--text-2);margin-bottom:8px;}
.f-sub input{width:100%;height:46px;padding:0 14px;border-radius:var(--r-btn);border:1px solid var(--line);background:var(--bg-2);color:var(--text);margin-bottom:12px;}
.f-sub input::placeholder{color:var(--text-3);}
.f-sub input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(31,227,194,.14);}
.f-sub small{display:block;margin-top:10px;font-size:12px;color:var(--text-3);line-height:1.7;}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;padding:22px 0;border-top:1px solid var(--line);font-size:13px;color:var(--text-3);}
.fb-links{display:flex;flex-wrap:wrap;gap:18px;}
.fb-links a{font-size:13px;color:var(--text-3);}
.fb-links a:hover{color:var(--primary);}
.to-top{display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 16px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.03);color:var(--text-2);font-size:13px;cursor:pointer;transition:all .22s var(--ease);}
.to-top:hover{color:var(--primary);border-color:var(--line-p);background:rgba(31,227,194,.1);}

/* ---------- responsive ---------- */
@media screen and (max-width:1200px){
  .footer-grid{grid-template-columns:1.3fr 1fr 1fr 1.2fr;gap:28px;}
}
@media screen and (max-width:1024px){
  :root{--sec-pc:var(--sec-tab);}
  .main-nav{display:none;}
  .menu-btn{display:inline-flex;}
  .header-actions .btn-primary{display:none;}
  .anchor-card{position:static;top:auto;}
  .anchor-list{display:flex;flex-wrap:wrap;gap:8px;}
  .anchor-list li{margin:0;}
  .anchor-list a{border-left:0;border:1px solid var(--line);padding:8px 14px;font-size:13px;border-radius:999px;}
  .anchor-list a.is-active{border-color:var(--line-p);background:rgba(31,227,194,.12);}
  .anchor-help{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .check-grid{grid-template-columns:1fr 1fr;}
}
@media screen and (max-width:768px){
  .container{padding:0 18px;}
  .page-hero{padding:110px 0 44px;min-height:260px;}
  .doc-block h2{font-size:21px;}
  .doc-block p{font-size:15px;}
  .lead-block{padding:24px 20px;}
  .cta-band{padding:30px 22px;}
  .cta-band .btn{width:100%;}
  .check-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media screen and (max-width:640px){
  :root{--sec-pc:var(--sec-mob);}
  .header-inner{height:68px;}
  .brand-text em{display:none;}
  .brand-text{font-size:15px;}
  .page-hero{padding:100px 0 40px;}
  .page-hero h1{font-size:clamp(26px,7.4vw,34px);}
  .hero-badges .badge{font-size:11px;height:26px;padding:0 10px;}
  .section-head{margin-bottom:28px;}
  .faq-q{padding:16px 18px;font-size:15px;}
  .faq-a-inner{padding:0 18px 18px;}
  .stats-row .cell{margin-bottom:14px;}
  .btn{width:100%;}
  .header-actions .icon-btn{width:42px;height:42px;}
  .search-form{flex-direction:column;align-items:stretch;}
  .search-form input{width:100%;}
}
@media screen and (max-width:400px){
  .container{padding:0 14px;}
  .stat-num{font-size:22px;}
  .anchor-list a{font-size:12px;padding:7px 12px;}
}

/* roulang page: category2 */
:root{
  --bg:#060D12;
  --bg-2:#0B1720;
  --panel:#101F2A;
  --primary:#1FE3C2;
  --primary-d:#12A88F;
  --primary-l:#7CF5E4;
  --accent:#FF7B3D;
  --accent-d:#D25A22;
  --violet:#7C5CFF;
  --text:#E8F4F6;
  --text-2:#93A9B3;
  --text-3:#5E7480;
  --line:rgba(255,255,255,.07);
  --line-strong:rgba(255,255,255,.14);
  --line-p:rgba(31,227,194,.45);
  --ok:#35D07F;
  --warn:#FFB020;
  --err:#FF5C5C;
  --r-card:16px;
  --r-panel:20px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 2px 8px rgba(0,0,0,.35);
  --sh-2:0 12px 32px rgba(0,0,0,.5);
  --sh-3:0 24px 60px rgba(0,0,0,.6);
  --ease:cubic-bezier(.2,.7,.3,1);
  --max:1200px;
  --sec:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none;transition:color .24s var(--ease),opacity .24s var(--ease)}
a:hover{color:var(--primary-l)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.02em;line-height:1.3}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
::selection{background:rgba(31,227,194,.28);color:#fff}

.container{
  width:100%;
  max-width:var(--max);
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1440px){ .container{max-width:1280px} }

.section{padding:var(--sec) 0;position:relative}
.section-alt{background:var(--bg-2)}
.sec-head{margin-bottom:44px;max-width:760px}
.sec-head h2{
  font-size:clamp(22px,2.6vw,32px);
  font-weight:700;
  padding-top:16px;
  position:relative;
}
.sec-head h2::before{
  content:"";
  position:absolute;
  top:0;left:0;
  width:40px;height:6px;
  border-radius:3px;
  background:linear-gradient(90deg,var(--primary),var(--primary-d));
}
.sec-head p{margin-top:14px;color:var(--text-2);font-size:15px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.08em;
  color:var(--primary);
  text-transform:uppercase;
  margin-bottom:10px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--line-p)}

/* ---------- header ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:60;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .28s var(--ease),backdrop-filter .28s var(--ease),border-color .28s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(6,13,18,.85);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:76px;
}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{
  width:42px;height:42px;
  display:grid;place-items:center;
  border-radius:12px;
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-d) 60%,var(--violet) 140%);
  color:#04120F;
  font-weight:800;font-size:14px;
  letter-spacing:.02em;
  box-shadow:0 6px 18px rgba(31,227,194,.22);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text b{font-size:17px;font-weight:800;letter-spacing:-.02em}
.brand-text i{font-style:normal;font-size:12px;color:var(--text-3);letter-spacing:.04em}
.main-nav{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
  padding:5px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(16,31,42,.55);
}
.main-nav a{
  display:inline-flex;align-items:center;
  padding:9px 16px;
  border-radius:999px;
  font-size:14px;
  color:var(--text-2);
  white-space:nowrap;
}
.main-nav a:hover{color:var(--text);background:rgba(255,255,255,.05)}
.main-nav a.is-active{
  background:var(--primary);
  color:#04120F;
  font-weight:600;
}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.icon-btn{
  width:44px;height:44px;
  display:grid;place-items:center;
  border-radius:12px;
  border:1px solid var(--line);
  color:var(--text-2);
  background:rgba(16,31,42,.6);
  transition:border-color .24s var(--ease),color .24s var(--ease),transform .24s var(--ease);
}
.icon-btn:hover{border-color:var(--line-p);color:var(--primary);transform:translateY(-2px)}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(16,31,42,.6);
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:11px 22px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),background .24s var(--ease),border-color .24s var(--ease),filter .24s var(--ease);
}
.btn-primary{
  background:var(--primary);
  color:#04120F;
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);color:#04120F}
.btn-primary:active{transform:translateY(0)}
.btn-glow{
  box-shadow:0 0 0 1px rgba(31,227,194,.25),0 0 28px rgba(31,227,194,.35);
}
.btn-glow:hover{box-shadow:0 0 0 1px rgba(31,227,194,.45),0 0 38px rgba(31,227,194,.5)}
.btn-ghost{
  background:transparent;
  border-color:var(--line-p);
  color:var(--primary);
}
.btn-ghost:hover{background:rgba(31,227,194,.12);color:var(--primary-l);transform:translateY(-2px)}
.btn-quiet{
  padding:0;
  min-height:44px;
  color:var(--primary);
  border:0;
  position:relative;
}
.btn-quiet::after{
  content:"";position:absolute;left:0;bottom:8px;height:1px;width:0;background:var(--primary);transition:width .28s var(--ease);
}
.btn-quiet:hover::after{width:100%}
.btn-sm{min-height:40px;padding:8px 16px;font-size:14px}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 11px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.02em;
  border:1px solid var(--line);
  color:var(--text-2);
  background:var(--panel);
}
.badge-primary{background:rgba(31,227,194,.12);border-color:var(--line-p);color:var(--primary)}
.badge-accent{background:rgba(255,123,61,.14);border-color:rgba(255,123,61,.35);color:var(--accent)}
.badge-ok{background:rgba(53,208,127,.12);border-color:rgba(53,208,127,.35);color:var(--ok)}
.badge-warn{background:rgba(255,176,32,.12);border-color:rgba(255,176,32,.32);color:var(--warn)}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;
  min-height:264px;
  display:flex;
  align-items:flex-end;
  padding:130px 0 46px;
  background-image:
    linear-gradient(100deg,rgba(6,13,18,.94) 0%,rgba(6,13,18,.78) 52%,rgba(6,13,18,.42) 100%),
    url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;right:-140px;top:-120px;
  width:520px;height:520px;
  background:radial-gradient(circle,rgba(31,227,194,.20) 0%,rgba(31,227,194,0) 68%);
  pointer-events:none;
}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-3);
  margin-bottom:16px;
}
.crumb a{color:var(--text-2)}
.crumb a:hover{color:var(--primary)}
.crumb .sep{color:var(--text-3)}
.page-hero h1{
  font-size:clamp(30px,4.6vw,52px);
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.25;
  max-width:820px;
}
.page-hero .lead{
  margin-top:16px;
  max-width:680px;
  color:var(--text-2);
  font-size:16px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}

/* ---------- intro block ---------- */
.intro-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:36px;align-items:start}
.intro-text p{color:var(--text-2);font-size:16px}
.intro-text strong{color:var(--text);font-weight:600}
.intro-note{
  padding:26px;
  border-radius:var(--r-panel);
  background:var(--panel);
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
}
.intro-note h3{font-size:18px;margin-bottom:14px}
.intro-note li{
  display:flex;gap:10px;
  padding:10px 0;
  font-size:14px;
  color:var(--text-2);
  border-bottom:1px dashed var(--line);
}
.intro-note li:last-child{border-bottom:0}
.intro-note li i{color:var(--primary);margin-top:5px;font-size:13px}

/* ---------- stat strip ---------- */
.stat-strip{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:18px;
  margin-top:46px;
}
.stat-card{
  padding:22px;
  border-radius:var(--r-card);
  background:var(--panel);
  border:1px solid var(--line);
  transition:transform .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.stat-card:hover{transform:translateY(-4px);border-color:var(--line-p);box-shadow:var(--sh-2)}
.stat-card i{color:var(--accent);font-size:18px}
.stat-card .num{
  display:block;
  margin:12px 0 4px;
  font-size:26px;
  font-weight:800;
  font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;
}
.stat-card span.lbl{font-size:13px;color:var(--text-2)}

/* ---------- alternating rows ---------- */
.alt-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
  padding:40px 0;
}
.alt-row + .alt-row{border-top:1px solid var(--line)}
.alt-row .media{
  position:relative;
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--line);
  aspect-ratio:16/10;
  background:linear-gradient(140deg,#132832,#0A1620);
  box-shadow:var(--sh-1);
  transition:border-color .32s var(--ease),transform .32s var(--ease),box-shadow .32s var(--ease);
}
.alt-row .media img{
  width:100%;height:100%;
  object-fit:cover;
  border-radius:0;
  transition:transform .32s var(--ease);
}
.alt-row .media::after{
  content:"";position:absolute;inset:0;background:#04120F;opacity:0;transition:opacity .32s var(--ease);
}
.alt-row:hover .media{border-color:var(--line-p);box-shadow:var(--sh-2);transform:translateY(-4px)}
.alt-row:hover .media img{transform:scale(1.04)}
.alt-row:hover .media::after{opacity:.15}
.alt-row.reverse .media{order:2}
.alt-row.reverse .copy{order:1}
.alt-step{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;color:var(--text-3);
  letter-spacing:.06em;
  margin-bottom:12px;
  font-variant-numeric:tabular-nums;
}
.alt-step b{
  color:var(--primary);
  font-size:14px;
  font-weight:800;
}
.alt-row h3{font-size:clamp(19px,1.6vw,22px);font-weight:700;margin-bottom:14px}
.alt-row .copy p{color:var(--text-2);font-size:15px}
.alt-list{margin:18px 0 22px}
.alt-list li{
  position:relative;
  padding-left:20px;
  margin-bottom:10px;
  font-size:14px;
  color:var(--text-2);
}
.alt-list li::before{
  content:"";
  position:absolute;left:0;top:10px;
  width:7px;height:7px;
  border-radius:2px;
  background:var(--primary);
  transform:rotate(45deg);
}
.alt-list li b{color:var(--text)}

/* ---------- progress panel ---------- */
.glass{
  background:rgba(16,31,42,.62);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid rgba(31,227,194,.22);
  border-radius:var(--r-panel);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),var(--sh-2);
}
.progress-panel{padding:32px;position:relative}
.progress-head{
  display:flex;flex-wrap:wrap;gap:14px;
  align-items:center;justify-content:space-between;
  margin-bottom:26px;
}
.progress-head h2{font-size:clamp(20px,2vw,26px)}
.progress-rows{display:grid;gap:18px}
.p-row{
  display:grid;
  grid-template-columns:160px 1fr 64px 82px;
  gap:16px;
  align-items:center;
  font-size:14px;
}
.p-row .p-name{color:var(--text)}
.p-bar{
  height:8px;
  border-radius:99px;
  background:rgba(255,255,255,.07);
  overflow:hidden;
}
.p-bar i{
  display:block;height:100%;
  border-radius:99px;
  background:linear-gradient(90deg,var(--primary-d),var(--primary));
}
.p-bar i.a{background:linear-gradient(90deg,var(--accent-d),var(--accent))}
.p-row .p-pct{font-variant-numeric:tabular-nums;color:var(--text-2);text-align:right}

/* ---------- faq ---------- */
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.faq-item{
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--panel);
  overflow:hidden;
  transition:border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.faq-item:hover{border-color:var(--line-p)}
.faq-item.is-open{border-color:var(--line-p);box-shadow:var(--sh-1)}
.faq-q{
  width:100%;
  display:flex;align-items:center;gap:16px;
  padding:20px 22px;
  text-align:left;
  font-size:16px;
  font-weight:600;
  min-height:44px;
}
.faq-q .plus{
  flex:0 0 auto;
  width:20px;height:20px;
  position:relative;
  transition:transform .28s var(--ease);
}
.faq-q .plus::before,
.faq-q .plus::after{
  content:"";position:absolute;left:50%;top:50%;
  background:var(--primary);
  border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-q .plus::before{width:16px;height:2px}
.faq-q .plus::after{width:2px;height:16px}
.faq-item.is-open .faq-q .plus{transform:rotate(45deg)}
.faq-q span.q-text{flex:1}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .28s var(--ease);
}
.faq-a .inner{
  padding:0 22px 22px 58px;
  color:var(--text-2);
  font-size:15px;
  line-height:1.8;
}

/* ---------- cta ---------- */
.cta-bar{
  position:relative;
  padding:52px 44px;
  border-radius:var(--r-panel);
  background:
    linear-gradient(rgba(31,227,194,.08),rgba(31,227,194,.08)),
    repeating-linear-gradient(0deg,rgba(255,255,255,.05) 0 1px,transparent 1px 42px),
    repeating-linear-gradient(90deg,rgba(255,255,255,.05) 0 1px,transparent 1px 42px),
    var(--bg-2);
  border:1px solid var(--line-p);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.cta-bar h2{font-size:clamp(20px,2.2vw,28px)}
.cta-bar p{color:var(--text-2);margin-top:8px;font-size:15px}

/* ---------- footer ---------- */
.site-footer{
  background:#040A0E;
  border-top:1px solid var(--line);
  padding:72px 0 0;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:36px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand b{font-size:16px;font-weight:800}
.footer-col h4{font-size:15px;margin-bottom:16px}
.footer-col p{color:var(--text-2);font-size:14px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{font-size:14px;color:var(--text-2)}
.footer-col ul a:hover{color:var(--primary);text-decoration:underline}
.socials{display:flex;gap:10px;margin-top:18px}
.socials a{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:10px;
  border:1px solid var(--line);
  color:var(--text-2);
  transition:border-color .24s var(--ease),color .24s var(--ease),transform .24s var(--ease);
}
.socials a:hover{border-color:var(--line-p);color:var(--primary);transform:translateY(-2px)}
.f-sub label{display:block;font-size:14px;color:var(--text-2);margin-bottom:8px}
.f-sub input{
  width:100%;
  min-height:44px;
  padding:10px 14px;
  border-radius:var(--r-btn);
  background:#0A1620;
  border:1px solid var(--line);
  color:var(--text);
  font-size:14px;
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.f-sub input:focus{
  outline:none;
  border-color:var(--line-p);
  box-shadow:0 0 0 3px rgba(31,227,194,.16);
}
.f-sub button{margin-top:12px;width:100%}
.f-sub small{display:block;margin-top:10px;font-size:12px;color:var(--text-3)}
.footer-bottom{
  margin-top:56px;
  padding:22px 0 28px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  font-size:13px;
  color:var(--text-3);
}
.fb-links{display:flex;flex-wrap:wrap;align-items:center;gap:16px}
.fb-links a{color:var(--text-3)}
.fb-links a:hover{color:var(--primary)}
.to-top{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 14px;
  border-radius:999px;
  border:1px solid var(--line);
  color:var(--text-2);
  font-size:13px;
  transition:border-color .24s var(--ease),color .24s var(--ease);
}
.to-top:hover{border-color:var(--line-p);color:var(--primary)}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;
  top:0;right:0;
  width:min(86vw,340px);
  height:100%;
  z-index:80;
  padding:88px 24px 28px;
  display:flex;
  flex-direction:column;
  gap:8px;
  transform:translateX(105%);
  transition:transform .32s var(--ease);
  background:rgba(11,23,32,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-left:1px solid rgba(31,227,194,.22);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),var(--sh-3);
}
.drawer.is-open{transform:translateX(0)}
.drawer a.d-link{
  display:flex;align-items:center;
  min-height:48px;
  padding:0 16px;
  border-radius:12px;
  border:1px solid var(--line);
  font-size:15px;
  color:var(--text-2);
  background:rgba(16,31,42,.6);
}
.drawer a.d-link:hover{color:var(--primary);border-color:var(--line-p)}
.drawer a.d-link.is-active{background:var(--primary);color:#04120F;font-weight:600;border-color:var(--primary)}
.drawer .d-cta{margin-top:14px}
.drawer .d-foot{
  margin-top:auto;
  font-size:12px;
  color:var(--text-3);
  border-top:1px solid var(--line);
  padding-top:16px;
}
.backdrop{
  position:fixed;inset:0;
  background:rgba(4,10,14,.6);
  opacity:0;visibility:hidden;
  transition:opacity .28s var(--ease),visibility .28s var(--ease);
  z-index:70;
}
.backdrop.is-open{opacity:1;visibility:visible}

/* ---------- responsive ---------- */
@media (max-width:1200px){
  .main-nav a{padding:8px 12px;font-size:13px}
  .alt-row{gap:40px}
}
@media (max-width:1024px){
  :root{--sec:64px}
  .main-nav{display:none}
  .nav-toggle{display:flex}
  .header-actions .btn-glow{display:none}
  .intro-grid{grid-template-columns:1fr;gap:26px}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .alt-row{grid-template-columns:1fr;gap:24px;padding:32px 0}
  .alt-row.reverse .media{order:0}
  .alt-row.reverse .copy{order:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .p-row{grid-template-columns:120px 1fr 56px 76px;gap:12px}
}
@media (max-width:768px){
  .page-hero{min-height:236px;padding:118px 0 34px}
  .faq-grid{grid-template-columns:1fr}
  .cta-bar{padding:34px 24px;flex-direction:column;align-items:flex-start}
  .p-row{grid-template-columns:1fr;gap:8px;padding:12px 0;border-bottom:1px dashed var(--line)}
  .p-row .p-pct{text-align:left}
  .p-row .badge{justify-self:start}
}
@media (max-width:640px){
  :root{--sec:48px}
  .container{padding:0 16px}
  body{font-size:15px}
  .header-inner{min-height:66px;gap:12px}
  .brand-text i{display:none}
  .stat-strip{grid-template-columns:1fr 1fr;gap:12px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .progress-panel{padding:22px}
  .faq-a .inner{padding:0 18px 20px 18px}
  .faq-q{padding:16px 18px;font-size:15px}
}
@media (max-width:400px){
  .brand-text b{font-size:15px}
  .stat-card .num{font-size:22px}
  .cta-bar{padding:26px 18px}
}

/* roulang page: category3 */
:root{
  --bg:#060D12;
  --bg-2:#0B1720;
  --panel:#101F2A;
  --primary:#1FE3C2;
  --primary-dark:#12A88F;
  --primary-light:#7CF5E4;
  --accent:#FF7B3D;
  --accent-dark:#D25A22;
  --violet:#7C5CFF;
  --text:#E8F4F6;
  --text-2:#93A9B3;
  --text-3:#5E7480;
  --line:rgba(255,255,255,.07);
  --line-primary:rgba(31,227,194,.45);
  --ok:#35D07F;
  --warn:#FFB020;
  --err:#FF5C5C;
  --r-card:16px;
  --r-panel:20px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 2px 8px rgba(0,0,0,.35);
  --sh-2:0 12px 32px rgba(0,0,0,.5);
  --sh-3:0 24px 60px rgba(0,0,0,.6);
  --ease:cubic-bezier(.2,.7,.3,1);
  --gutter:24px;
  --section-gap:96px;
}

*,*::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:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.7;
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:inherit;text-decoration:none;transition:color .24s var(--ease),border-color .24s var(--ease),background-color .24s var(--ease);}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;}
p{margin:0;}
table{border-collapse:collapse;width:100%;}

:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1400px){ .container{max-width:1280px;} }

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 22px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),background-color .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:var(--primary);
  color:#04120F;
  border:1px solid var(--primary);
  box-shadow:0 0 0 1px rgba(31,227,194,.25),0 8px 28px rgba(31,227,194,.28);
}
.btn-primary:hover{
  background:#3CF2D4;
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(31,227,194,.4),0 14px 40px rgba(31,227,194,.42);
}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:transparent;
  color:var(--primary);
  border:1px solid var(--line-primary);
}
.btn-ghost:hover{background:rgba(31,227,194,.12);border-color:var(--primary);}
.btn-text{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--primary);
  font-size:14px;
  font-weight:600;
  padding:6px 0;
  position:relative;
}
.btn-text::after{
  content:"";
  position:absolute;
  left:0;bottom:2px;
  height:1px;width:0;
  background:var(--primary);
  transition:width .28s var(--ease);
}
.btn-text:hover::after{width:100%;}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;
  inset:0 0 auto 0;
  z-index:100;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background-color .28s var(--ease),border-color .28s var(--ease),backdrop-filter .28s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(6,13,18,.85);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:72px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-weight:800;
  font-size:17px;
  letter-spacing:-.01em;
  flex-shrink:0;
}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:36px;height:36px;
  border-radius:11px;
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 55%,var(--violet) 130%);
  color:#04120F;
  font-size:13px;
  font-weight:800;
  letter-spacing:.02em;
  box-shadow:0 6px 18px rgba(31,227,194,.28);
}
.brand-text{color:var(--text);}
.brand-text small{display:block;font-size:11px;font-weight:500;color:var(--text-3);letter-spacing:.06em;}

.main-nav{
  display:flex;
  align-items:center;
  gap:4px;
  padding:5px;
  border-radius:999px;
  background:rgba(16,31,42,.6);
  border:1px solid var(--line);
}
.main-nav a{
  display:inline-flex;
  align-items:center;
  min-height:36px;
  padding:0 15px;
  border-radius:999px;
  font-size:14px;
  font-weight:500;
  color:var(--text-2);
}
.main-nav a:hover{color:var(--text);background:rgba(255,255,255,.05);}
.main-nav a.is-active{
  background:var(--primary);
  color:#04120F;
  font-weight:700;
}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.icon-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  color:var(--text-2);
  background:rgba(16,31,42,.55);
}
.icon-btn:hover{color:var(--primary);border-color:var(--line-primary);}
.nav-toggle{display:none;}

/* 移动端抽屉 */
.drawer-scrim{
  position:fixed;inset:0;z-index:120;
  background:rgba(3,8,11,.72);
  opacity:0;visibility:hidden;
  transition:opacity .28s var(--ease),visibility .28s var(--ease);
}
.drawer-scrim.is-open{opacity:1;visibility:visible;}
.mobile-drawer{
  position:fixed;
  top:0;right:0;bottom:0;
  z-index:130;
  width:min(86vw,340px);
  padding:22px 20px;
  transform:translateX(102%);
  transition:transform .3s var(--ease);
  background:rgba(16,31,42,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-left:1px solid rgba(31,227,194,.22);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),var(--sh-3);
  display:flex;
  flex-direction:column;
  gap:18px;
  overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-links{display:flex;flex-direction:column;gap:6px;}
.drawer-links a{
  display:flex;align-items:center;
  min-height:48px;
  padding:0 14px;
  border-radius:12px;
  color:var(--text-2);
  font-size:15px;
  border:1px solid transparent;
}
.drawer-links a:hover{color:var(--text);background:rgba(255,255,255,.05);}
.drawer-links a.is-active{
  color:#04120F;
  background:var(--primary);
  font-weight:700;
}
.drawer-foot{
  margin-top:auto;
  padding-top:16px;
  border-top:1px solid var(--line);
  font-size:12px;
  color:var(--text-3);
  line-height:1.7;
}

/* ============ 内页 Hero ============ */
.page-hero{
  position:relative;
  min-height:272px;
  display:flex;
  align-items:flex-end;
  padding:120px 0 42px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center 32%;
  opacity:.5;
}
.page-hero::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(6,13,18,.95) 0%,rgba(6,13,18,.82) 46%,rgba(6,13,18,.52) 100%),
             radial-gradient(560px 320px at 84% 12%,rgba(31,227,194,.16),transparent 70%);
}
.page-hero .container{position:relative;z-index:2;}

.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
  margin-bottom:16px;
}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:var(--text-3);}
.breadcrumb .current{color:var(--primary);}

.page-hero h1{
  font-size:clamp(28px,3.6vw,42px);
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.25;
  max-width:820px;
}
.page-hero .hero-sub{
  margin-top:14px;
  max-width:660px;
  font-size:16px;
  color:var(--text-2);
}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px;}
.tag{
  display:inline-flex;
  align-items:center;
  height:28px;
  padding:0 12px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  color:var(--primary);
  background:rgba(31,227,194,.1);
  border:1px solid rgba(31,227,194,.3);
}
.tag.warm{color:var(--accent);background:rgba(255,123,61,.1);border-color:rgba(255,123,61,.32);}
.tag.mute{color:var(--text-2);background:rgba(255,255,255,.04);border-color:var(--line);}
.tag.ok{color:var(--ok);background:rgba(53,208,127,.1);border-color:rgba(53,208,127,.32);}

/* ============ 版面 ============ */
main{display:block;}
.section{padding:var(--section-gap) 0;}
.section.tight{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head h2{
  font-size:clamp(22px,2.6vw,32px);
  font-weight:700;
  padding-top:16px;
  position:relative;
}
.section-head h2::before{
  content:"";
  position:absolute;
  top:0;left:0;
  width:40px;height:6px;
  border-radius:3px;
  background:var(--primary);
}
.section-head p{margin-top:14px;color:var(--text-2);font-size:15px;}

.lead-panel{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-panel);
  padding:30px 32px;
  box-shadow:var(--sh-1);
}
.lead-panel p{color:var(--text-2);font-size:15.5px;line-height:1.9;}
.lead-panel p + p{margin-top:12px;}
.lead-panel strong{color:var(--text);font-weight:600;}

/* ============ 参数卡网格 ============ */
.spec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.spec-card{
  position:relative;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px 24px 20px;
  box-shadow:var(--sh-1);
  transition:transform .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
  display:flex;
  flex-direction:column;
}
.spec-card:hover{
  transform:translateY(-4px);
  border-color:var(--line-primary);
  box-shadow:var(--sh-2);
}
.spec-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px;}
.spec-icon{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;
  border-radius:12px;
  background:rgba(31,227,194,.1);
  border:1px solid rgba(31,227,194,.24);
  color:var(--primary);
  font-size:17px;
}
.spec-card h3{font-size:18px;font-weight:600;margin-bottom:14px;}
.spec-rows{display:flex;flex-direction:column;gap:0;border-top:1px solid var(--line);}
.spec-row{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:14px;
  padding:11px 0;
  border-bottom:1px dashed rgba(255,255,255,.07);
  font-size:14px;
}
.spec-row .k{color:var(--text-3);flex-shrink:0;}
.spec-row .v{color:var(--text);text-align:right;font-weight:600;}
.spec-row .v.warm{color:var(--accent);}
.spec-note{
  margin-top:14px;
  font-size:13px;
  color:var(--text-2);
  line-height:1.75;
}

/* ============ 对照表 ============ */
.compare-wrap{
  border:1px solid var(--line);
  border-radius:var(--r-panel);
  background:var(--panel);
  overflow:hidden;
  box-shadow:var(--sh-1);
}
.compare-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;}
.compare-table{min-width:760px;}
.compare-table th,
.compare-table td{
  padding:16px 20px;
  text-align:left;
  font-size:14.5px;
  border-bottom:1px solid var(--line);
  vertical-align:top;
}
.compare-table thead th{
  background:rgba(11,23,32,.9);
  color:var(--text);
  font-size:13px;
  font-weight:700;
  letter-spacing:.04em;
  white-space:nowrap;
}
.compare-table thead th:nth-child(2){color:var(--primary);}
.compare-table thead th:nth-child(3){color:var(--accent);}
.compare-table tbody tr{transition:background-color .24s var(--ease);}
.compare-table tbody tr:hover{background:rgba(31,227,194,.045);}
.compare-table tbody tr:last-child td{border-bottom:0;}
.compare-table td:first-child{color:var(--text-2);font-weight:600;white-space:nowrap;}
.compare-table td:nth-child(2){color:var(--text);}
.compare-table td:nth-child(3){color:var(--text);}
.compare-table td:nth-child(4){color:var(--text-2);}
.table-hint{
  padding:14px 20px;
  font-size:13px;
  color:var(--text-3);
  border-top:1px solid var(--line);
  background:rgba(11,23,32,.55);
}

/* ============ 清单 ============ */
.check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.check-item{
  display:flex;
  gap:16px;
  padding:22px 24px;
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  transition:border-color .28s var(--ease),transform .28s var(--ease);
}
.check-item:hover{border-color:var(--line-primary);transform:translateY(-3px);}
.check-idx{
  flex-shrink:0;
  width:34px;height:34px;
  border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:800;
  color:#04120F;
  background:var(--primary);
}
.check-body h3{font-size:16px;font-weight:600;margin-bottom:6px;}
.check-body p{font-size:14px;color:var(--text-2);line-height:1.8;}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;align-items:start;}
.faq-item{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  transition:border-color .28s var(--ease),background-color .28s var(--ease);
}
.faq-item:hover{border-color:rgba(31,227,194,.28);}
.faq-item.is-open{border-color:var(--line-primary);}
.faq-q{
  width:100%;
  display:flex;
  align-items:flex-start;
  gap:14px;
  padding:20px 22px;
  text-align:left;
  font-size:15.5px;
  font-weight:600;
  color:var(--text);
  line-height:1.6;
}
.faq-q .plus{
  flex-shrink:0;
  width:20px;height:20px;
  margin-top:2px;
  position:relative;
  transition:transform .28s var(--ease);
}
.faq-q .plus::before,
.faq-q .plus::after{
  content:"";
  position:absolute;
  background:var(--primary);
  border-radius:2px;
}
.faq-q .plus::before{left:0;top:9px;width:20px;height:2px;}
.faq-q .plus::after{left:9px;top:0;width:2px;height:20px;}
.faq-item.is-open .faq-q .plus{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s var(--ease);}
.faq-a-inner{
  padding:0 22px 20px 56px;
  font-size:15px;
  line-height:1.8;
  color:var(--text-2);
}

/* ============ CTA 通栏 ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-panel);
  border:1px solid rgba(31,227,194,.28);
  background:rgba(31,227,194,.08);
  padding:46px 44px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
  box-shadow:var(--sh-1);
}
.cta-band::before{
  content:"";
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(31,227,194,.07) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(31,227,194,.07) 1px,transparent 1px);
  background-size:38px 38px;
  opacity:.85;
  pointer-events:none;
}
.cta-band > *{position:relative;z-index:1;}
.cta-band h2{font-size:clamp(20px,2.2vw,28px);font-weight:700;margin-bottom:10px;}
.cta-band p{color:var(--text-2);font-size:15px;max-width:640px;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:var(--section-gap);
  background:#04090D;
  border-top:1px solid var(--line);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.3fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:700;margin-bottom:14px;}
.footer-col p{color:var(--text-3);font-size:14px;line-height:1.85;}
.footer-col h4{font-size:14px;font-weight:700;color:var(--text);margin-bottom:16px;letter-spacing:.02em;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col ul a{font-size:14px;color:var(--text-2);}
.footer-col ul a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:3px;}
.socials{display:flex;gap:10px;margin-top:18px;}
.socials a{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;
  border-radius:11px;
  border:1px solid var(--line);
  color:var(--text-2);
  background:rgba(16,31,42,.6);
}
.socials a:hover{color:var(--primary);border-color:var(--line-primary);}
.f-sub{display:flex;flex-direction:column;gap:10px;}
.f-sub label{font-size:14px;color:var(--text-2);}
.f-sub input{
  width:100%;
  min-height:44px;
  padding:0 14px;
  border-radius:var(--r-btn);
  background:#0B1720;
  border:1px solid var(--line);
  color:var(--text);
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.f-sub input::placeholder{color:var(--text-3);}
.f-sub input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(31,227,194,.16);}
.f-sub small{font-size:12.5px;color:var(--text-3);line-height:1.7;}
.f-err{font-size:13px;color:var(--err);display:none;}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  flex-wrap:wrap;
  padding:20px 0 26px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-3);
}
.fb-links{display:flex;flex-wrap:wrap;gap:16px;}
.fb-links a{color:var(--text-3);}
.fb-links a:hover{color:var(--primary);}
.to-top{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--primary);font-size:13px;font-weight:600;
}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  :root{--section-gap:80px;}
  .spec-grid{grid-template-columns:repeat(3,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1.3fr 1fr 1fr;gap:32px;}
  .footer-col:last-child{grid-column:1 / -1;}
}
@media (max-width:1024px){
  :root{--section-gap:64px;--gutter:20px;}
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-actions .btn-primary{display:none;}
  .spec-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .faq-grid{grid-template-columns:1fr;}
  .check-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .page-hero{padding:112px 0 36px;min-height:248px;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .spec-grid{grid-template-columns:1fr;}
  .cta-band{padding:34px 24px;flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .page-hero h1{font-size:clamp(24px,6vw,32px);}
  .page-hero .hero-sub{font-size:15px;}
  .lead-panel{padding:24px 20px;}
}
@media (max-width:520px){
  :root{--section-gap:48px;}
  .nav-inner{height:64px;}
  .brand{font-size:15px;}
  .brand-mark{width:32px;height:32px;font-size:12px;}
  .brand-text small{display:none;}
  .page-hero{padding:96px 0 30px;min-height:224px;}
  .faq-q{padding:18px 16px;font-size:15px;}
  .faq-a-inner{padding:0 16px 18px 46px;}
  .check-item{padding:18px 16px;}
  .spec-card{padding:20px 18px 16px;}
  .compare-table th,.compare-table td{padding:14px 16px;}
  .cta-band{padding:28px 18px;}
}
@media (max-width:400px){
  .btn{padding:0 16px;font-size:14px;}
  .hero-tags .tag{font-size:11px;padding:0 10px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category4 */
:root{
  --bg:#060D12;
  --bg-2:#0B1720;
  --panel:#101F2A;
  --panel-2:#0D1A23;
  --primary:#1FE3C2;
  --primary-d:#12A88F;
  --primary-l:#7CF5E4;
  --accent:#FF7B3D;
  --accent-d:#D25A22;
  --violet:#7C5CFF;
  --text:#E8F4F6;
  --text-2:#93A9B3;
  --text-3:#5E7480;
  --line:rgba(255,255,255,.07);
  --line-p:rgba(31,227,194,.45);
  --ok:#35D07F;
  --warn:#FFB020;
  --err:#FF5C5C;
  --r-card:16px;
  --r-panel:20px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 2px 8px rgba(0,0,0,.35);
  --sh-2:0 12px 32px rgba(0,0,0,.5);
  --sh-3:0 24px 60px rgba(0,0,0,.6);
  --ease:cubic-bezier(.2,.7,.3,1);
  --t:280ms;
  --sec-pc:96px;
  --sec-tab:64px;
  --sec-mb:48px;
  --container:1200px;
}
*,*::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:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.7;
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--text);text-decoration:none;transition:color var(--t) var(--ease)}
a:hover{color:var(--primary)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
::selection{background:rgba(31,227,194,.28);color:#04120F}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.section{padding:var(--sec-pc) 0}
.section--tight{padding:56px 0}
.sec-head{margin-bottom:40px;max-width:760px}
.sec-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 12px;border-radius:999px;
  background:rgba(31,227,194,.1);
  border:1px solid var(--line-p);
  color:var(--primary-l);
  font-size:13px;letter-spacing:.04em;margin-bottom:14px;
}
.sec-head h2{
  position:relative;
  font-size:clamp(22px,2.6vw,32px);
  font-weight:700;
  line-height:1.3;
  letter-spacing:-.01em;
  padding-top:18px;
}
.sec-head h2::before{
  content:"";position:absolute;top:0;left:0;
  width:40px;height:6px;border-radius:3px;
  background:linear-gradient(90deg,var(--primary),var(--primary-d));
}
.sec-sub{margin-top:12px;color:var(--text-2);font-size:15px}
.h3{font-size:19px;font-weight:600;line-height:1.4}
.meta{font-size:13px;color:var(--text-2)}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background var(--t) var(--ease),border-color var(--t) var(--ease),backdrop-filter var(--t) var(--ease);
}
.site-header.is-scrolled{
  background:rgba(6,13,18,.85);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:20px;height:72px;
}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-weight:800;font-size:16px;letter-spacing:.01em;
  min-height:44px;
}
.brand:hover{color:var(--text)}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;
  background:linear-gradient(140deg,var(--primary),var(--primary-d) 62%,var(--violet));
  color:#04120F;font-size:12px;font-weight:800;letter-spacing:.02em;
  box-shadow:0 0 0 1px rgba(31,227,194,.35),0 6px 18px rgba(31,227,194,.18);
}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text small{font-size:11px;color:var(--text-2);font-weight:500;letter-spacing:.06em}
.main-nav{
  display:flex;align-items:center;gap:6px;
  padding:5px;border-radius:999px;
  background:rgba(255,255,255,.03);
  border:1px solid var(--line);
}
.main-nav a{
  display:inline-flex;align-items:center;
  height:36px;padding:0 15px;border-radius:999px;
  font-size:14px;color:var(--text-2);
  transition:background var(--t) var(--ease),color var(--t) var(--ease);
  white-space:nowrap;
}
.main-nav a:hover{color:var(--text);background:rgba(255,255,255,.06)}
.main-nav a.is-active{
  background:var(--primary);color:#04120F;font-weight:600;
}
.main-nav a.is-active:hover{color:#04120F;background:var(--primary-l)}
.nav-actions{display:flex;align-items:center;gap:10px}
.icon-btn{
  width:44px;height:44px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--text-2);
  background:rgba(255,255,255,.02);
  transition:color var(--t) var(--ease),border-color var(--t) var(--ease),background var(--t) var(--ease);
}
.icon-btn:hover{color:var(--primary);border-color:var(--line-p);background:rgba(31,227,194,.08)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:transform var(--t) var(--ease),background var(--t) var(--ease),color var(--t) var(--ease),box-shadow var(--t) var(--ease),border-color var(--t) var(--ease);
}
.btn i{font-size:13px}
.btn-primary{
  background:var(--primary);color:#04120F;
  box-shadow:0 0 0 1px rgba(31,227,194,.6),0 0 28px rgba(31,227,194,.25);
}
.btn-primary:hover{
  background:var(--primary-l);color:#04120F;
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(31,227,194,.8),0 0 38px rgba(31,227,194,.34);
}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  background:transparent;color:var(--primary);
  border:1px solid var(--line-p);
}
.btn-ghost:hover{background:rgba(31,227,194,.12);color:var(--primary-l);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px}
.link-more{
  position:relative;display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--primary);
}
.link-more::after{
  content:"";position:absolute;left:0;bottom:-3px;height:1px;width:0;
  background:var(--primary);transition:width var(--t) var(--ease);
}
.link-more:hover::after{width:100%}

/* ---------- 抽屉（移动端） ---------- */
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:120;
  width:min(320px,86vw);
  transform:translateX(104%);
  transition:transform 320ms var(--ease);
  background:rgba(16,31,42,.62);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-left:1px solid rgba(31,227,194,.22);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
  padding:22px 20px 28px;
  display:flex;flex-direction:column;gap:18px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-links{display:flex;flex-direction:column;gap:6px}
.drawer-links a{
  min-height:48px;display:flex;align-items:center;
  padding:0 14px;border-radius:10px;
  color:var(--text-2);font-size:15px;
  border:1px solid transparent;
}
.drawer-links a:hover{background:rgba(255,255,255,.05);color:var(--text)}
.drawer-links a.is-active{
  background:var(--primary);color:#04120F;font-weight:600;
}
.drawer-foot{margin-top:auto;font-size:12px;color:var(--text-3);line-height:1.7}
.drawer-mask{
  position:fixed;inset:0;z-index:110;
  background:rgba(3,8,11,.6);
  opacity:0;visibility:hidden;transition:opacity var(--t) var(--ease),visibility var(--t) var(--ease);
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.burger{display:none}

/* ---------- 分类 Hero ---------- */
.hero-cat{
  position:relative;
  min-height:272px;
  display:flex;align-items:flex-end;
  padding:120px 0 40px;
  background-image:
    linear-gradient(90deg,rgba(6,13,18,.94) 0%,rgba(6,13,18,.74) 52%,rgba(6,13,18,.42) 100%),
    url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center 30%;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.hero-cat::after{
  content:"";position:absolute;right:-140px;top:-160px;width:520px;height:520px;
  background:radial-gradient(circle,rgba(31,227,194,.22) 0%,rgba(31,227,194,0) 68%);
  pointer-events:none;
}
.hero-cat .container{position:relative;z-index:2}
.hero-cat h1{
  font-size:clamp(30px,4.6vw,46px);
  font-weight:800;letter-spacing:-.02em;line-height:1.25;
  max-width:820px;
}
.hero-cat .hero-cat-sub{
  margin-top:14px;color:var(--text-2);font-size:15px;max-width:640px;
}
.hero-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:12px;
  background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--text-2);
}
.chip--accent{color:var(--accent);border-color:rgba(255,123,61,.35);background:rgba(255,123,61,.1)}
.chip--primary{color:var(--primary-l);border-color:var(--line-p);background:rgba(31,227,194,.1)}

/* ---------- 面包屑 ---------- */
.crumb-bar{border-bottom:1px solid var(--line);background:var(--bg-2)}
.crumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  min-height:52px;font-size:13px;color:var(--text-3);
}
.crumb a{color:var(--text-2);font-size:13px}
.crumb a:hover{color:var(--primary)}
.crumb .sep{color:var(--text-3)}
.crumb .cur{color:var(--primary-l)}

/* ---------- 简介 ---------- */
.intro{padding:56px 0 8px}
.intro-lead{
  max-width:900px;font-size:16px;line-height:1.9;color:var(--text-2);
  border-left:3px solid rgba(31,227,194,.4);
  padding-left:20px;
}
.intro-lead strong{color:var(--text);font-weight:600}

/* ---------- 双栏 ---------- */
.split{
  display:grid;grid-template-columns:1.05fr .95fr;
  gap:48px;align-items:center;
}
.split-copy h2{
  font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.32;
  padding-top:18px;position:relative;margin-bottom:16px;
}
.split-copy h2::before{
  content:"";position:absolute;top:0;left:0;width:40px;height:6px;border-radius:3px;
  background:linear-gradient(90deg,var(--primary),var(--primary-d));
}
.split-copy p{color:var(--text-2);font-size:15px;line-height:1.9;margin-bottom:14px}
.split-copy p:last-of-type{margin-bottom:22px}
.key-list{display:grid;gap:12px;margin:0 0 26px}
.key-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:14px 16px;border-radius:var(--r-card);
  background:var(--panel);border:1px solid var(--line);
  transition:border-color var(--t) var(--ease),transform var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.key-list li:hover{border-color:var(--line-p);transform:translateY(-3px);box-shadow:var(--sh-2)}
.key-list i{
  color:var(--primary);font-size:14px;margin-top:5px;
}
.key-list b{display:block;font-size:15px;font-weight:600;margin-bottom:4px}
.key-list span{font-size:14px;color:var(--text-2);line-height:1.7}
.media-frame{
  position:relative;border-radius:var(--r-img);overflow:hidden;
  border:1px solid var(--line);
  aspect-ratio:4/3;
  background:linear-gradient(140deg,#0D1A23,#101F2A);
  box-shadow:var(--sh-3);
}
.media-frame img{
  width:100%;height:100%;object-fit:cover;
  transition:transform 320ms var(--ease),filter var(--t) var(--ease);
}
.media-frame::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,13,18,0) 40%,rgba(6,13,18,.6) 100%);
  opacity:.9;transition:opacity 320ms var(--ease);
}
.media-frame:hover img{transform:scale(1.04)}
.media-frame:hover::after{opacity:1}
.media-cap{
  position:absolute;left:16px;right:16px;bottom:14px;z-index:2;
  font-size:13px;color:var(--text-2);
}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;margin-top:8px;padding-left:76px}
.timeline::before{
  content:"";position:absolute;left:27px;top:12px;bottom:24px;width:2px;
  background:linear-gradient(180deg,rgba(31,227,194,.6),rgba(31,227,194,.06));
}
.tl-item{position:relative;margin-bottom:26px}
.tl-item:last-child{margin-bottom:0}
.tl-node{
  position:absolute;left:-76px;top:20px;
  width:56px;height:56px;border-radius:16px;
  display:flex;align-items:center;justify-content:center;
  background:var(--panel);
  border:1px solid var(--line);
  color:var(--primary);
  font-weight:800;font-size:16px;letter-spacing:.01em;
  box-shadow:var(--sh-1);
  transition:border-color var(--t) var(--ease),box-shadow var(--t) var(--ease),transform var(--t) var(--ease);
}
.tl-item:hover .tl-node{
  border-color:var(--line-p);transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(31,227,194,.35),0 0 26px rgba(31,227,194,.2);
}
.tl-body{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px 26px;
  transition:border-color var(--t) var(--ease),transform var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.tl-item:hover .tl-body{border-color:var(--line-p);transform:translateY(-3px);box-shadow:var(--sh-2)}
.tl-body h3{font-size:18px;font-weight:600;margin-bottom:8px;display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.tl-body p{font-size:15px;color:var(--text-2);line-height:1.85}
.tl-points{margin-top:14px;display:grid;gap:8px}
.tl-points li{
  display:flex;gap:10px;font-size:14px;color:var(--text-2);line-height:1.7;
}
.tl-points li::before{
  content:"";flex:0 0 6px;height:6px;margin-top:9px;border-radius:2px;
  background:var(--primary-d);
}
.tl-foot{
  margin-top:16px;padding-top:14px;border-top:1px dashed rgba(255,255,255,.09);
  display:flex;flex-wrap:wrap;gap:10px;align-items:center;
}
.tag{
  display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;
  font-size:12px;border:1px solid var(--line);color:var(--text-2);
  background:rgba(255,255,255,.03);
}
.tag--ok{color:var(--ok);border-color:rgba(53,208,127,.35);background:rgba(53,208,127,.1)}
.tag--warn{color:var(--warn);border-color:rgba(255,176,32,.35);background:rgba(255,176,32,.1)}
.tag--accent{color:var(--accent);border-color:rgba(255,123,61,.35);background:rgba(255,123,61,.1)}

/* ---------- 编号流程卡 ---------- */
.flow-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
}
.flow-card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px 24px;
  transition:border-color var(--t) var(--ease),transform var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.flow-card:hover{border-color:var(--line-p);transform:translateY(-4px);box-shadow:var(--sh-2)}
.flow-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:14px;
  background:rgba(31,227,194,.1);
  border:1px solid var(--line-p);
  color:var(--primary);font-weight:800;font-size:15px;
  margin-bottom:16px;
}
.flow-card h3{font-size:18px;font-weight:600;margin-bottom:10px}
.flow-card p{font-size:14px;color:var(--text-2);line-height:1.8}
.flow-card .flow-tip{
  margin-top:16px;font-size:13px;color:var(--text-3);
  display:flex;align-items:center;gap:8px;
}
.flow-card .flow-tip i{color:var(--accent)}

/* ---------- 求助渠道列表 ---------- */
.help-panel{
  border:1px solid var(--line);border-radius:var(--r-panel);
  background:linear-gradient(180deg,var(--panel) 0%,var(--panel-2) 100%);
  padding:12px;
}
.help-row{
  display:grid;grid-template-columns:56px 1.4fr 1fr auto;
  gap:18px;align-items:center;
  padding:18px 16px;border-radius:12px;
  transition:background var(--t) var(--ease);
}
.help-row + .help-row{border-top:1px solid var(--line)}
.help-row:hover{background:rgba(255,255,255,.03)}
.help-ico{
  width:44px;height:44px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(31,227,194,.1);color:var(--primary);font-size:15px;
}
.help-row h3{font-size:16px;font-weight:600;margin-bottom:4px}
.help-row p{font-size:13px;color:var(--text-2);line-height:1.7}
.help-time{font-size:14px;color:var(--text-2);display:flex;align-items:center;gap:8px}
.help-time i{color:var(--primary-d);font-size:12px}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.faq-item{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  transition:border-color var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.faq-item.is-open{border-color:var(--line-p);box-shadow:var(--sh-2)}
.faq-q{
  width:100%;display:flex;align-items:flex-start;gap:16px;
  padding:20px 22px;text-align:left;color:var(--text);
  font-size:16px;font-weight:600;line-height:1.5;
}
.faq-q:hover{color:var(--primary-l)}
.faq-sign{
  flex:0 0 22px;width:22px;height:22px;position:relative;margin-top:2px;
  transition:transform 280ms var(--ease);
}
.faq-sign::before,.faq-sign::after{
  content:"";position:absolute;left:50%;top:50%;
  background:var(--primary);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-sign::before{width:16px;height:2px}
.faq-sign::after{width:2px;height:16px}
.faq-item.is-open .faq-sign{transform:rotate(45deg)}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height 280ms var(--ease);
}
.faq-a-inner{
  padding:0 22px 22px 60px;
  font-size:15px;line-height:1.8;color:var(--text-2);
}
.faq-a-inner strong{color:var(--text);font-weight:600}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:
    linear-gradient(90deg,rgba(31,227,194,.08),rgba(31,227,194,.03)),
    var(--bg-2);
}
.cta-band::before{
  content:"";position:absolute;inset:0;opacity:.05;
  background-image:
    linear-gradient(rgba(255,255,255,.6) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.6) 1px,transparent 1px);
  background-size:44px 44px;
  pointer-events:none;
}
.cta-inner{
  position:relative;z-index:2;
  display:flex;align-items:center;justify-content:space-between;
  gap:32px;padding:56px 0;
}
.cta-inner h2{font-size:clamp(20px,2.4vw,28px);font-weight:700;line-height:1.35;max-width:620px}
.cta-inner p{margin-top:10px;font-size:15px;color:var(--text-2);max-width:620px}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#040A0E;
  border-top:1px solid var(--line);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:40px;padding-bottom:44px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;font-size:16px}
.footer-brand b{font-weight:700}
.footer-col p{font-size:14px;color:var(--text-2);line-height:1.8;max-width:320px}
.footer-col h4{
  font-size:15px;font-weight:700;margin-bottom:16px;color:var(--text);
  position:relative;padding-left:12px;
}
.footer-col h4::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:14px;border-radius:2px;background:var(--primary);
}
.footer-col ul{display:grid;gap:10px}
.footer-col ul a{font-size:14px;color:var(--text-2)}
.footer-col ul a:hover{color:var(--primary);text-decoration:underline}
.socials{display:flex;gap:10px;margin-top:18px}
.socials a{
  width:40px;height:40px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--text-2);font-size:14px;
  transition:color var(--t) var(--ease),border-color var(--t) var(--ease),background var(--t) var(--ease);
}
.socials a:hover{color:var(--primary);border-color:var(--line-p);background:rgba(31,227,194,.08)}
.f-sub{display:grid;gap:10px}
.f-sub label{font-size:13px;color:var(--text-2)}
.f-sub input{
  width:100%;min-height:46px;padding:0 14px;
  background:rgba(255,255,255,.03);
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  color:var(--text);font-size:14px;
  transition:border-color var(--t) var(--ease),box-shadow var(--t) var(--ease);
}
.f-sub input::placeholder{color:var(--text-3)}
.f-sub input:focus{
  outline:none;border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(31,227,194,.15);
}
.f-sub .btn{width:100%;box-shadow:none}
.f-sub .btn:hover{box-shadow:0 0 0 1px rgba(31,227,194,.55),0 0 18px rgba(31,227,194,.18)}
.f-sub small{font-size:12px;color:var(--text-3);line-height:1.7}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;
  gap:18px;flex-wrap:wrap;font-size:13px;color:var(--text-3);
}
.fb-links{display:flex;flex-wrap:wrap;gap:18px;align-items:center}
.fb-links a{font-size:13px;color:var(--text-2)}
.fb-links a:hover{color:var(--primary);text-decoration:underline}
.to-top{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 12px;border-radius:999px;
  border:1px solid var(--line);
}
.to-top:hover{border-color:var(--line-p)}

/* ---------- 响应式 ---------- */
@media (max-width:1200px){
  :root{--container:1140px}
  .help-row{grid-template-columns:56px 1.3fr 1fr auto;gap:14px}
}
@media (max-width:1024px){
  :root{--sec-pc:64px}
  .section{padding:var(--sec-tab) 0}
  .main-nav{display:none}
  .burger{display:inline-flex}
  .split{grid-template-columns:1fr;gap:32px}
  .flow-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .help-row{grid-template-columns:48px 1fr auto;gap:14px}
  .help-row .help-time{grid-column:2/3}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:22px}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .hero-cat{min-height:240px;padding:104px 0 32px}
  .timeline{padding-left:60px}
  .timeline::before{left:21px}
  .tl-node{left:-60px;width:44px;height:44px;border-radius:12px;font-size:14px;top:24px}
  .tl-body{padding:20px}
  .flow-grid{grid-template-columns:1fr}
  .faq-grid{grid-template-columns:1fr}
  .faq-a-inner{padding:0 20px 20px 52px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .section--tight{padding:44px 0}
}
@media (max-width:640px){
  body{font-size:15px}
  .header-inner{height:64px}
  .brand-text small{display:none}
  .hero-cat h1{font-size:clamp(26px,7vw,34px)}
  .flow-grid{gap:16px}
  .help-panel{padding:6px}
  .help-row{grid-template-columns:44px 1fr;gap:12px;padding:16px 12px}
  .help-row .help-time{grid-column:2/3;font-size:13px}
  .cta-inner{padding:44px 0}
  .btn{width:100%}
  .cta-inner .btn{width:auto}
}
@media (max-width:400px){
  .hero-cat{padding:96px 0 26px;min-height:220px}
  .tl-body{padding:18px 16px}
  .timeline{padding-left:52px}
  .tl-node{left:-52px;width:38px;height:38px;font-size:13px}
  .timeline::before{left:18px}
  .cta-inner h2{font-size:20px}
}