/* roulang page: index */
:root{
  --ink:#0C0E11;
  --ink-2:#161A1F;
  --ink-card:#1C2128;
  --mist:#F5F6F3;
  --white:#FFFFFF;
  --line-light:#EDEFEA;
  --lime:#C6F24E;
  --lime-deep:#6E8F14;
  --magenta:#FF4D8D;
  --cyan:#3AD6D6;
  --t-dark:#F2F4F0;
  --t-dark-2:#A8B0A6;
  --t-light:#14171A;
  --t-light-2:#5C635B;
  --bd-dark:rgba(255,255,255,.08);
  --bd-light:#DFE3DA;
  --ok:#4ED08A;
  --warn:#FFB13C;
  --r-card:18px;
  --r-img:14px;
  --r-badge:6px;
  --r-step:12px;
  --r-pill:999px;
  --sh-dark:0 18px 48px rgba(0,0,0,.45);
  --sh-light:0 12px 32px rgba(16,20,12,.08);
  --ease:cubic-bezier(.2,.8,.2,1);
  --dur:180ms;
  --container:1240px;
  --font:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:17px;
  line-height:1.85;
  color:var(--t-light);
  background:var(--mist);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color var(--dur) var(--ease),opacity var(--dur) var(--ease);}
button,input{font-family:inherit;font-size:inherit;}
button{cursor:pointer;border:0;background:none;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
h1{font-size:clamp(34px,4.6vw,60px);font-weight:800;letter-spacing:-.02em;line-height:1.15;}
h2{font-size:clamp(26px,3vw,40px);font-weight:700;line-height:1.25;letter-spacing:-.01em;}
h3{font-size:21px;font-weight:600;line-height:1.4;}
p{font-size:17px;line-height:1.85;}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}
.section{padding:120px 0;}
.section--light{background:var(--mist);color:var(--t-light);}
.section--dark{background:var(--ink);color:var(--t-dark);}
.section--white{background:var(--white);color:var(--t-light);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.06em;line-height:1.6;
  color:var(--lime);font-weight:600;
}
.section--light .eyebrow,.section--white .eyebrow{color:var(--lime-deep);}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 4px rgba(198,242,78,.18);animation:pulse 2.2s var(--ease) infinite;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:56px;}
.section-head h2{margin-top:14px;}
.link-hint{font-size:14px;color:var(--t-light-2);display:inline-flex;align-items:center;gap:8px;white-space:nowrap;}
.link-hint i{transition:transform var(--dur) var(--ease);}
.link-hint:hover{color:var(--lime-deep);}
.link-hint:hover i{transform:translateX(4px);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;
  transition:transform var(--dur) var(--ease),background var(--dur) var(--ease),border-color var(--dur) var(--ease),color var(--dur) var(--ease),box-shadow var(--dur) var(--ease),filter var(--dur) var(--ease);
}
.btn-primary{background:var(--lime);color:var(--ink);box-shadow:0 10px 28px rgba(198,242,78,.18);}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 14px 34px rgba(198,242,78,.26);}
.btn-secondary{background:transparent;border-color:var(--bd-light);color:var(--t-light);}
.section--dark .btn-secondary{border-color:rgba(255,255,255,.22);color:var(--t-dark);}
.btn-secondary:hover{border-color:var(--lime);color:var(--lime-deep);}
.section--dark .btn-secondary:hover{border-color:var(--lime);color:var(--lime);}
.btn-ghost{padding:0;background:none;border:0;color:var(--lime-deep);font-weight:600;}
.section--dark .btn-ghost{color:var(--lime);}
.btn-ghost i{transition:transform var(--dur) var(--ease);}
.btn-ghost:hover{color:var(--magenta);}
.btn-ghost:hover i{transform:translateX(4px);}
.btn-sm{padding:10px 20px;font-size:14px;}
.icon-btn{
  width:36px;height:36px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--bd-dark);color:var(--t-dark-2);
  font-size:14px;
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.icon-btn:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-1px);}
.btn[disabled],.btn.is-disabled{opacity:.4;box-shadow:none;pointer-events:none;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  height:64px;background:var(--ink);
  border-bottom:1px solid transparent;
  transition:background var(--dur) var(--ease),border-color var(--dur) var(--ease),backdrop-filter var(--dur) var(--ease);
}
.site-header.is-scrolled{background:rgba(12,14,17,.88);backdrop-filter:blur(8px);border-bottom-color:var(--bd-dark);}
.nav-wrap{display:flex;align-items:center;gap:28px;height:64px;}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(140deg,var(--lime) 0%,#8DBF1C 100%);
  color:var(--ink);display:flex;align-items:center;justify-content:center;
  font-size:15px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:17px;color:var(--t-dark);font-weight:700;letter-spacing:.01em;}
.brand-text em{font-size:11px;font-style:normal;color:var(--t-dark-2);letter-spacing:.04em;}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:8px;}
.nav-links a{
  position:relative;font-size:15px;color:var(--t-dark-2);padding:6px 0;
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--lime);transition:width var(--dur) var(--ease);
}
.nav-links a:hover{color:var(--t-dark);}
.nav-links a:hover::after{width:16px;}
.nav-links a.is-active{color:var(--lime);}
.nav-links a.is-active::after{width:16px;}
.nav-tools{display:flex;align-items:center;gap:10px;margin-left:auto;}
.cmd-search{
  display:flex;align-items:center;gap:10px;
  width:220px;height:38px;padding:0 12px 0 14px;
  border:1px solid var(--bd-dark);border-radius:var(--r-pill);
  color:var(--t-dark-2);font-size:13.5px;background:var(--ink-2);
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.cmd-search:hover{border-color:rgba(198,242,78,.5);color:var(--t-dark);}
.cmd-search span{flex:1;text-align:left;}
.cmd-search kbd{
  font-family:inherit;font-size:11px;padding:2px 7px;border-radius:6px;
  background:rgba(255,255,255,.07);color:var(--t-dark-2);
}
.hamburger{
  display:none;width:40px;height:40px;border-radius:10px;
  border:1px solid var(--bd-dark);
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.hamburger span{display:block;width:16px;height:1.5px;background:var(--t-dark);border-radius:2px;}

/* 抽屉 */
.drawer{
  position:fixed;inset:0;z-index:120;background:var(--ink);
  transform:translateX(100%);transition:transform 260ms var(--ease);
  display:flex;flex-direction:column;
  padding:64px 24px calc(24px + env(safe-area-inset-bottom));
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:32px;}
.drawer-close{width:40px;height:40px;border-radius:50%;border:1px solid var(--bd-dark);color:var(--t-dark);display:flex;align-items:center;justify-content:center;}
.drawer-group{margin-bottom:28px;}
.drawer-group h4{font-size:12px;letter-spacing:.1em;color:var(--t-dark-2);margin-bottom:14px;font-weight:600;}
.drawer-group a{display:block;padding:14px 0;border-bottom:1px solid var(--bd-dark);color:var(--t-dark);font-size:16px;}
.drawer-group a:hover,.drawer-group a.is-active{color:var(--lime);}
.drawer-foot{margin-top:auto;padding-top:24px;}

/* ---------- Hero ---------- */
.hero{position:relative;background:var(--ink);color:var(--t-dark);overflow:hidden;padding:112px 0 96px;}
.hero-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;opacity:.26;}
.hero-bg::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(12,14,17,.9) 0%,rgba(12,14,17,.72) 45%,rgba(12,14,17,.96) 100%);}
.hero-bg::after{
  content:"";position:absolute;inset:0;opacity:.6;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:72px 72px;
  mask-image:radial-gradient(ellipse at 30% 30%,#000 20%,transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse at 30% 30%,#000 20%,transparent 78%);
}
.hero .container{position:relative;z-index:2;}
.hero-grid{align-items:center;}
.hero-copy h1{margin:18px 0 20px;color:var(--t-dark);}
.hero-sub{font-size:18px;color:var(--t-dark-2);max-width:520px;margin-bottom:32px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:38px;}
.trust-row{display:flex;flex-wrap:wrap;gap:26px;}
.trust-row li{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--t-dark-2);}
.trust-row i{color:var(--lime);font-size:14px;}
.hero-visual{position:relative;padding-left:32px;}
.hero-card{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  border:1px solid rgba(198,242,78,.3);
  box-shadow:var(--sh-dark);background:var(--ink-card);
  transform:translateY(-3px);
}
.hero-card img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.hero-card-tag{
  position:absolute;top:16px;left:16px;
  padding:7px 16px;font-size:12px;font-weight:600;letter-spacing:.04em;
  background:var(--lime);color:var(--ink);
  clip-path:polygon(0 0,100% 0,88% 100%,0 100%);
}
.hero-mini{
  position:absolute;right:-8px;bottom:-34px;width:216px;
  background:var(--ink-2);border:1px solid var(--bd-dark);border-radius:var(--r-card);
  box-shadow:var(--sh-dark);padding:18px;
}
.hero-mini strong{display:block;font-size:15px;color:var(--t-dark);margin-bottom:6px;}
.hero-mini span{font-size:13px;color:var(--t-dark-2);line-height:1.6;}
.hero-mini .mini-bar{height:4px;border-radius:99px;background:rgba(255,255,255,.1);margin-top:14px;overflow:hidden;}
.hero-mini .mini-bar i{display:block;height:100%;width:68%;background:var(--lime);border-radius:99px;}
.scroll-hint{
  position:relative;z-index:2;margin-top:72px;
  display:flex;flex-direction:column;align-items:flex-start;gap:10px;
  font-size:12px;letter-spacing:.1em;color:var(--t-dark-2);
}
.scroll-hint .line{width:1px;height:44px;background:linear-gradient(180deg,rgba(198,242,78,.7),transparent);}
.scroll-hint .pulse{width:6px;height:6px;border-radius:50%;background:var(--lime);animation:pulse 2s var(--ease) infinite;}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.4;transform:scale(1.4);}}

/* ---------- 卖点 ---------- */
.feature-layout{display:grid;grid-template-columns:1.35fr 1fr;gap:24px;align-items:stretch;}
.feature-main{
  background:var(--white);border:1px solid var(--bd-light);border-radius:var(--r-card);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.feature-main:hover{transform:translateY(-3px);box-shadow:var(--sh-light);border-color:rgba(110,143,20,.4);}
.feature-main-media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;}
.feature-main-body{padding:28px;display:flex;flex-direction:column;gap:14px;flex:1;}
.feature-main-body p{color:var(--t-light-2);font-size:16px;line-height:1.8;}
.feature-side{display:flex;flex-direction:column;gap:24px;}
.mini-card{
  background:var(--white);border:1px solid var(--bd-light);border-radius:var(--r-card);
  padding:26px;flex:1;display:flex;flex-direction:column;gap:12px;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.mini-card:hover{transform:translateY(-3px);box-shadow:var(--sh-light);border-color:rgba(110,143,20,.4);}
.mini-card .ico{
  width:42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(110,143,20,.1);color:var(--lime-deep);font-size:17px;border:1px solid rgba(110,143,20,.2);
}
.mini-card h3{font-size:19px;}
.mini-card p{font-size:15px;color:var(--t-light-2);line-height:1.75;}
.feature-strip{
  margin-top:24px;background:var(--white);border:1px solid var(--bd-light);border-radius:var(--r-card);
  display:grid;grid-template-columns:repeat(4,1fr);
}
.feature-strip li{padding:24px 26px;border-right:1px solid var(--line-light);}
.feature-strip li:last-child{border-right:0;}
.feature-strip strong{display:block;font-size:15px;margin-bottom:6px;}
.feature-strip span{font-size:13.5px;color:var(--t-light-2);line-height:1.7;}

/* ---------- 演示 ---------- */
.demo-track{
  display:flex;gap:24px;overflow-x:auto;padding-bottom:22px;
  scroll-snap-type:x mandatory;
  -ms-overflow-style:none;scrollbar-width:none;
}
.demo-track::-webkit-scrollbar{display:none;}
.demo-step{
  flex:0 0 340px;scroll-snap-align:start;
  background:var(--ink-card);border:1px solid var(--bd-dark);border-radius:var(--r-card);
  padding:26px;display:flex;flex-direction:column;gap:16px;
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.demo-step:hover{transform:translateY(-3px);border-color:rgba(198,242,78,.3);}
.demo-step .num{
  width:44px;height:44px;border-radius:var(--r-step);display:flex;align-items:center;justify-content:center;
  background:rgba(198,242,78,.12);border:1px solid rgba(198,242,78,.32);
  color:var(--lime);font-weight:700;font-variant-numeric:tabular-nums;font-size:15px;
}
.demo-step img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-img);border:1px solid var(--bd-dark);}
.demo-step h3{font-size:18px;color:var(--t-dark);}
.demo-step p{font-size:14.5px;color:var(--t-dark-2);line-height:1.75;}
.demo-progress{height:2px;background:rgba(255,255,255,.1);border-radius:99px;margin-top:26px;overflow:hidden;}
.demo-progress i{display:block;height:100%;width:34%;background:var(--lime);transition:width 400ms var(--ease);}

/* ---------- 证据 ---------- */
.proof-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:start;}
.stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.stat-card{
  background:var(--white);border:1px solid var(--bd-light);border-radius:var(--r-card);padding:26px;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.stat-card:hover{transform:translateY(-3px);box-shadow:var(--sh-light);border-color:rgba(58,214,214,.5);}
.stat-num{
  font-size:clamp(40px,4vw,52px);font-weight:800;line-height:1;color:var(--lime-deep);
  font-variant-numeric:tabular-nums;letter-spacing:-.03em;
}
.stat-num small{font-size:16px;font-weight:600;color:var(--t-light);margin-left:6px;letter-spacing:0;}
.stat-card p{margin-top:12px;font-size:14px;color:var(--t-light-2);line-height:1.7;}
.quote-stack{display:flex;flex-direction:column;gap:20px;position:relative;padding-left:28px;}
.quote-stack::before{content:"";position:absolute;left:0;top:12px;bottom:12px;width:1px;background:var(--bd-light);}
.quote-card{
  background:var(--white);border:1px solid var(--bd-light);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-light);
}
.quote-card:nth-child(2){margin-left:28px;}
.quote-card .mark{font-size:26px;color:var(--lime-deep);line-height:1;font-weight:800;font-family:Georgia,serif;}
.quote-card p{margin:12px 0 18px;font-size:15.5px;color:var(--t-light);line-height:1.85;}
.quote-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--t-light-2);}
.avatar{
  width:34px;height:34px;border-radius:50%;flex-shrink:0;
  background:linear-gradient(140deg,rgba(198,242,78,.35),rgba(58,214,214,.35));
  display:flex;align-items:center;justify-content:center;font-size:13px;color:var(--t-light);font-weight:700;
}

/* ---------- 方案 ---------- */
.plans{display:grid;grid-template-columns:1fr 1.12fr 1fr;gap:22px;align-items:center;}
.plan{
  background:var(--ink-2);border:1px solid var(--bd-dark);border-radius:var(--r-card);
  padding:30px;display:flex;flex-direction:column;gap:18px;
  transition:transform var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.plan:hover{transform:translateY(-3px);border-color:rgba(198,242,78,.3);}
.plan--featured{
  background:var(--ink-card);border-color:rgba(198,242,78,.55);
  padding:40px 32px;box-shadow:0 0 0 1px rgba(198,242,78,.12),0 24px 60px rgba(0,0,0,.5);
  position:relative;
}
.plan--featured::before{
  content:"常用";position:absolute;top:20px;right:20px;
  font-size:12px;padding:5px 12px;border-radius:var(--r-badge);
  background:var(--lime);color:var(--ink);font-weight:700;
}
.plan h3{font-size:20px;color:var(--t-dark);}
.plan .plan-desc{font-size:14px;color:var(--t-dark-2);line-height:1.7;min-height:44px;}
.plan ul{display:flex;flex-direction:column;gap:12px;margin:4px 0 8px;}
.plan ul li{display:flex;gap:10px;font-size:14.5px;color:var(--t-dark-2);line-height:1.7;}
.plan ul i{color:var(--lime);font-size:13px;margin-top:6px;}
.plan-note{margin-top:32px;font-size:13.5px;color:var(--t-dark-2);text-align:center;}

/* ---------- 资讯 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.news-card{
  background:var(--white);border:1px solid var(--bd-light);border-radius:var(--r-card);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--sh-light);border-color:rgba(255,77,141,.35);}
.news-card--lead{grid-column:1/-1;display:grid;grid-template-columns:1.05fr 1fr;}
.news-card--lead .news-cover img{height:100%;aspect-ratio:auto;min-height:280px;border-radius:0;}
.news-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;}
.news-body{padding:26px;display:flex;flex-direction:column;gap:12px;flex:1;}
.badge{
  display:inline-flex;align-items:center;align-self:flex-start;
  font-size:12px;letter-spacing:.04em;font-weight:600;
  padding:4px 10px;border-radius:var(--r-badge);
  border:1px solid rgba(255,77,141,.5);background:rgba(255,77,141,.12);color:#C9316A;
}
.section--dark .badge{color:var(--magenta);}
.news-title{font-size:18px;line-height:1.5;font-weight:600;}
.news-title a{
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-title a:hover{color:var(--lime-deep);}
.news-card--lead .news-title{font-size:23px;}
.news-excerpt{
  font-size:14.5px;color:var(--t-light-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--t-light-2);padding-top:14px;border-top:1px solid var(--line-light);
  font-variant-numeric:tabular-nums;
}
.arrow-link{display:inline-flex;align-items:center;gap:8px;color:var(--t-light);font-weight:600;font-size:13.5px;}
.arrow-link i{transition:transform var(--dur) var(--ease);}
.arrow-link:hover{color:var(--lime-deep);}
.arrow-link:hover i{transform:translateX(4px);}
.news-empty{
  grid-column:1/-1;height:120px;border:1px dashed var(--bd-light);border-radius:var(--r-card);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  color:var(--t-light-2);font-size:14.5px;
}
.load-more-wrap{display:flex;justify-content:center;margin-top:30px;}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start;}
.faq-side h2{margin:14px 0 16px;}
.faq-side p{font-size:15.5px;color:var(--t-light-2);margin-bottom:24px;}
.acc-item{border-bottom:1px solid var(--line-light);}
.acc-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;text-align:left;font-size:18px;font-weight:600;color:var(--t-light);
  transition:color var(--dur) var(--ease);
}
.acc-q:hover{color:var(--lime-deep);}
.acc-q .ico{
  width:26px;height:26px;flex-shrink:0;border-radius:50%;
  border:1px solid var(--bd-light);display:flex;align-items:center;justify-content:center;
  font-size:13px;color:var(--t-light-2);
  transition:transform 220ms var(--ease),border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.acc-item.is-open .acc-q{color:var(--lime-deep);}
.acc-item.is-open .acc-q .ico{transform:rotate(45deg);border-color:var(--lime-deep);color:var(--lime-deep);}
.acc-a{
  max-height:0;overflow:hidden;
  transition:max-height 220ms var(--ease),padding var(--dur) var(--ease);
}
.acc-item.is-open .acc-a{max-height:420px;padding-bottom:22px;}
.acc-a p{
  border-left:3px solid var(--lime-deep);padding-left:18px;
  font-size:15.5px;line-height:1.9;color:var(--t-light-2);
}

/* ---------- 结尾 CTA ---------- */
.cta-band{
  position:relative;background:var(--ink);color:var(--t-dark);
  padding:96px 0;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:72px 72px;
  mask-image:linear-gradient(90deg,#000,transparent 70%);
  -webkit-mask-image:linear-gradient(90deg,#000,transparent 70%);
}
.cta-inner{position:relative;z-index:2;max-width:680px;}
.cta-inner h2{margin-bottom:16px;}
.cta-inner p{font-size:16.5px;color:var(--t-dark-2);margin-bottom:32px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.cta-corner{
  position:absolute;right:0;top:0;width:220px;height:100%;
  background:linear-gradient(160deg,rgba(198,242,78,.12),transparent 62%);
  clip-path:polygon(30% 0,100% 0,100% 100%,0 100%);
  z-index:1;
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--t-dark-2);padding:72px 0 0;border-top:1px solid var(--bd-dark);}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:56px;}
.footer-brand strong{display:block;color:var(--t-dark);font-size:17px;margin:16px 0 10px;}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--t-dark-2);max-width:280px;}
.footer-col h4{font-size:13px;letter-spacing:.08em;color:var(--t-dark);margin-bottom:18px;font-weight:600;}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a{font-size:14px;color:var(--t-dark-2);}
.footer-col a:hover{color:var(--lime);}
.footer-bottom{
  border-top:1px solid var(--bd-dark);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  font-size:13px;
}
.to-top{
  width:38px;height:38px;border-radius:50%;border:1px solid var(--bd-dark);
  display:flex;align-items:center;justify-content:center;color:var(--t-dark-2);
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.to-top:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-3px);}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:90;
  display:flex;align-items:center;gap:10px;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity 260ms var(--ease),transform 260ms var(--ease),visibility 260ms;
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta .icon-btn{background:var(--ink-2);}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{padding:0 28px;}
  .cmd-search{width:180px;}
}
@media (max-width:1023px){
  .section{padding:88px 0;}
  .nav-links,.cmd-search{display:none;}
  .hamburger{display:flex;}
  .hero{padding:88px 0 80px;}
  .hero-visual{padding-left:0;margin-top:56px;}
  .feature-layout{grid-template-columns:1fr;}
  .feature-strip{grid-template-columns:repeat(2,1fr);}
  .feature-strip li:nth-child(2){border-right:0;}
  .feature-strip li:nth-child(-n+2){border-bottom:1px solid var(--line-light);}
  .proof-grid{grid-template-columns:1fr;gap:36px;}
  .plans{grid-template-columns:1fr;}
  .plan--featured{padding:32px 26px;}
  .faq-layout{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .float-cta{
    left:0;right:0;bottom:0;transform:translateY(100%);
    padding:10px 20px calc(10px + env(safe-area-inset-bottom));
    background:rgba(12,14,17,.96);border-top:1px solid var(--bd-dark);
    justify-content:space-between;
  }
  .float-cta.is-visible{transform:translateY(0);}
  .float-cta .btn{flex:1;justify-content:center;}
  .faq-layout,.site-footer{padding-bottom:96px;}
}
@media (max-width:767px){
  .section{padding:64px 0;}
  .container{padding:0 20px;}
  body{font-size:16px;}
  p{font-size:16px;line-height:1.85;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:36px;}
  .hero{padding:64px 0 72px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .trust-row{gap:16px;}
  .hero-mini{position:static;width:100%;margin-top:18px;}
  .feature-strip{grid-template-columns:1fr;}
  .feature-strip li{border-right:0;border-bottom:1px solid var(--line-light);}
  .feature-strip li:last-child{border-bottom:0;}
  .stat-grid{grid-template-columns:1fr;}
  .quote-card:nth-child(2){margin-left:0;}
  .quote-stack{padding-left:18px;}
  .news-grid{grid-template-columns:1fr;}
  .news-card--lead{grid-template-columns:1fr;}
  .news-card--lead .news-cover img{min-height:0;aspect-ratio:16/9;}
  .news-card--lead .news-title{font-size:19px;}
  .demo-step{flex:0 0 82%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .acc-q{font-size:16.5px;}
}
@media (max-width:479px){
  .brand-text em{display:none;}
  .hero-sub{font-size:16px;}
  .demo-step{flex:0 0 88%;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
}

/* roulang page: article */
:root{
  --ink:#0C0E11;
  --ink-2:#161A1F;
  --ink-3:#1C2128;
  --mist:#F5F6F3;
  --white:#FFFFFF;
  --line-light:#EDEFEA;
  --lime:#C6F24E;
  --lime-deep:#6E8F14;
  --magenta:#FF4D8D;
  --cyan:#3AD6D6;
  --t-dark:#F2F4F0;
  --t-dark-2:#A8B0A6;
  --t-light:#14171A;
  --t-light-2:#5C635B;
  --bd-dark:rgba(255,255,255,.08);
  --bd-light:#DFE3DA;
  --ok:#4ED08A;
  --warn:#FFB13C;
  --err:#FF4D8D;
  --r-card:18px;
  --r-img:14px;
  --r-badge:6px;
  --r-btn:999px;
  --sh-dark:0 18px 48px rgba(0,0,0,.45);
  --sh-light:0 12px 32px rgba(16,20,12,.08);
  --tr:180ms cubic-bezier(.2,.8,.2,1);
  --nav-h:64px;
  --font-cn:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.85;
  color:var(--t-light);
  background:var(--mist);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color var(--tr);}
a:hover{color:var(--magenta);}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;letter-spacing:-0.01em;}
p{margin:0;}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  border:1px solid transparent;transition:all var(--tr);
}
.btn i{font-size:13px;}
.btn-primary{background:var(--lime);color:var(--ink);box-shadow:0 6px 20px rgba(198,242,78,.22);}
.btn-primary:hover{background:var(--lime);color:var(--ink);filter:brightness(1.06);transform:translateY(-1px);}
.btn-outline{border-color:var(--bd-light);color:var(--t-light);background:transparent;}
.btn-outline:hover{border-color:var(--lime-dark);color:var(--lime-deep);transform:translateY(-1px);}
.btn-outline-dark{border-color:rgba(255,255,255,.22);color:var(--t-dark);background:transparent;}
.btn-outline-dark:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-1px);}
.btn-ghost{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:15px;color:var(--lime-deep);padding:4px 0;}
.btn-ghost i{transition:transform var(--tr);}
.btn-ghost:hover{color:var(--magenta);}
.btn-ghost:hover i{transform:translateX(4px);}
.btn-sm{padding:9px 18px;font-size:13px;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(12,14,17,.92);
  border-bottom:1px solid var(--bd-dark);
  transition:background var(--tr),backdrop-filter var(--tr);
}
.site-header.is-scrolled{background:rgba(12,14,17,.86);backdrop-filter:blur(8px);}
.nav-inner{display:flex;align-items:center;gap:24px;height:var(--nav-h);}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:36px;height:36px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--lime),#9ed027);color:var(--ink);font-size:15px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.1;}
.brand-text strong{color:var(--t-dark);font-size:16px;font-weight:800;letter-spacing:.02em;}
.brand-text em{font-style:normal;font-size:11px;color:var(--t-dark-2);letter-spacing:.06em;}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:12px;}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;height:36px;padding:0 14px;
  font-size:14.5px;color:var(--t-dark-2);border-radius:10px;
}
.nav-links a:hover{color:var(--t-dark);background:rgba(255,255,255,.05);}
.nav-links a.is-active{color:var(--lime);}
.nav-links a.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;background:var(--lime);border-radius:2px;
}
.nav-tools{display:flex;align-items:center;gap:10px;margin-left:auto;}
.command-search{
  display:flex;align-items:center;gap:8px;width:220px;height:38px;padding:0 8px 0 14px;
  border:1px solid var(--bd-dark);border-radius:var(--r-btn);background:rgba(255,255,255,.04);
  color:var(--t-dark-2);font-size:13.5px;transition:all var(--tr);
}
.command-search:hover{border-color:rgba(198,242,78,.4);}
.command-search input{
  flex:1;min-width:0;border:0;background:transparent;color:var(--t-dark);font-size:13.5px;outline:none;font-family:inherit;
}
.command-search input::placeholder{color:#7C857C;}
.command-search .kbd{
  font-size:11px;padding:2px 6px;border-radius:6px;border:1px solid var(--bd-dark);color:var(--t-dark-2);
  font-family:Inter,var(--font-cn);letter-spacing:.02em;
}
.icon-btn{
  width:36px;height:36px;border-radius:50%;display:grid;place-items:center;
  border:1px solid var(--bd-dark);color:var(--t-dark-2);font-size:14px;transition:all var(--tr);
}
.icon-btn:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-1px);}
.nav-cta{padding:11px 20px;font-size:14px;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--bd-dark);
  color:var(--t-dark);font-size:16px;place-items:center;
}
.nav-toggle:hover{border-color:var(--lime);color:var(--lime);}

/* 移动抽屉 */
.drawer{
  position:fixed;inset:0;z-index:120;background:var(--ink);
  display:flex;flex-direction:column;padding:20px 20px calc(20px + env(safe-area-inset-bottom));
  transform:translateX(100%);transition:transform 240ms cubic-bezier(.2,.8,.2,1);visibility:hidden;
}
.drawer.is-open{transform:translateX(0);visibility:visible;}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;}
.drawer-close{width:42px;height:42px;border-radius:12px;border:1px solid var(--bd-dark);color:var(--t-dark);display:grid;place-items:center;}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:24px;}
.drawer-nav a{padding:14px 4px;border-bottom:1px solid var(--bd-dark);color:var(--t-dark);font-size:16px;font-weight:600;}
.drawer-nav a.is-active{color:var(--lime);}
.drawer-label{font-size:12px;letter-spacing:.08em;color:var(--t-dark-2);margin:0 0 10px;}
.drawer-cats{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:auto;}
.drawer-cats a{
  padding:8px 14px;border-radius:var(--r-btn);border:1px solid var(--bd-dark);
  color:var(--t-dark-2);font-size:13px;
}
.drawer-cta{margin-top:24px;display:grid;gap:10px;}

/* ---------- 文章头部 ---------- */
.article-top{
  background:var(--ink);
  background-image:linear-gradient(rgba(12,14,17,.88),rgba(12,14,17,.94)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  color:var(--t-dark);padding:28px 0 56px;border-bottom:1px solid var(--bd-dark);
  position:relative;overflow:hidden;
}
.article-top::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.055) 1px,transparent 1px);
  background-size:64px 64px;opacity:.5;pointer-events:none;
}
.article-top .container{position:relative;z-index:1;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--t-dark-2);}
.breadcrumb a{color:var(--t-dark-2);}
.breadcrumb a:hover{color:var(--lime);}
.breadcrumb .sep{color:#5A6259;}
.breadcrumb .now{color:var(--t-dark);}
.post-head{display:flex;gap:28px;align-items:flex-start;justify-content:space-between;margin-top:26px;}
.post-head-main{max-width:820px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:var(--r-badge);
  font-size:12px;letter-spacing:.04em;color:var(--magenta);
  border:1px solid rgba(255,77,141,.45);background:rgba(255,77,141,.12);
}
.post-head h1{
  margin:16px 0 18px;font-size:clamp(28px,3.4vw,40px);font-weight:800;line-height:1.25;color:var(--t-dark);
}
.post-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13.5px;color:var(--t-dark-2);}
.post-meta .dot{width:3px;height:3px;border-radius:50%;background:#5A6259;}
.post-actions{display:flex;gap:10px;flex:0 0 auto;padding-top:8px;}
.post-actions .icon-btn{width:40px;height:40px;background:rgba(255,255,255,.04);}

/* ---------- 布局 ---------- */
.layout{max-width:1240px;margin:0 auto;padding:56px 24px 96px;display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;align-items:start;}
.article-main{background:var(--white);border:1px solid var(--line-light);border-radius:var(--r-card);padding:44px 48px;box-shadow:var(--sh-light);}

/* ---------- 正文排版 ---------- */
.post-body{max-width:760px;font-size:17px;line-height:1.9;color:var(--t-light);}
.post-body>*+*{margin-top:1.2em;}
.post-body h2{
  position:relative;margin-top:44px;padding-left:16px;font-size:24px;font-weight:700;line-height:1.4;color:var(--t-light);
}
.post-body h2::before{
  content:"";position:absolute;left:0;top:.28em;width:4px;height:20px;border-radius:2px;background:var(--lime-dark);
}
.post-body h3{margin-top:34px;font-size:20px;font-weight:600;line-height:1.5;}
.post-body p{color:var(--t-light);}
.post-body ul{display:grid;gap:10px;}
.post-body ul li{position:relative;padding-left:18px;}
.post-body ul li::before{content:"";position:absolute;left:2px;top:.72em;width:6px;height:6px;background:var(--lime-dark);border-radius:1px;}
.post-body ol{list-style:decimal;padding-left:22px;display:grid;gap:10px;}
.post-body blockquote{
  margin:32px 0;padding:20px 24px;border-left:4px solid var(--lime);background:rgba(198,242,78,.08);
  border-radius:0 var(--r-img) var(--r-img) 0;color:#3D443B;
}
.post-body img{border-radius:var(--r-img);margin:32px auto;border:1px solid var(--line-light);}
.post-body figure{margin:32px 0;}
.post-body figcaption{margin-top:10px;text-align:center;font-size:13px;color:var(--t-light-2);}
.post-body a{color:var(--lime-deep);text-decoration:underline;text-underline-offset:3px;}
.post-body a:hover{color:var(--magenta);}
.post-body table{
  width:100%;border-collapse:separate;border-spacing:0;overflow:hidden;
  border:1px solid var(--line-light);border-radius:var(--r-img);margin:32px 0;font-size:15px;
}
.post-body thead th{
  background:var(--mist);text-align:left;font-weight:700;color:var(--t-light);
  padding:14px 18px;border-bottom:1px solid rgba(110,143,20,.3);
}
.post-body tbody td{padding:13px 18px;border-top:1px solid var(--line-light);color:var(--t-light-2);}
.post-body tbody tr:nth-child(even) td{background:#FAFBF8;}
.post-body .tip,
.post-body .note{
  padding:18px 20px;border-left:4px solid var(--lime);background:rgba(198,242,78,.1);
  border-radius:0 var(--r-img) var(--r-img) 0;font-size:16px;
}
.post-body .warn{border-left-color:var(--warn);background:rgba(255,177,60,.12);}
.post-body .figure-wide img{width:100%;}

.article-empty{
  max-width:760px;padding:48px;border:1px dashed var(--bd-light);border-radius:var(--r-card);
  background:var(--white);text-align:center;
}
.article-empty h2{font-size:22px;margin-bottom:12px;}
.article-empty p{color:var(--t-light-2);margin-bottom:22px;}

/* ---------- 文末 ---------- */
.tags-row{max-width:760px;display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:44px;padding-top:26px;border-top:1px solid var(--line-light);}
.tags-row .label{font-size:13px;color:var(--t-light-2);}
.tag{
  padding:6px 14px;border-radius:var(--r-badge);font-size:12.5px;
  border:1px solid rgba(255,77,141,.35);background:rgba(255,77,141,.08);color:#B42A5F;
}
.tag:hover{border-color:var(--magenta);color:var(--magenta);}
.back-row{max-width:760px;margin-top:26px;display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- 相关推荐 ---------- */
.related{margin-top:56px;}
.related-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px;}
.related-head h2{font-size:22px;font-weight:700;}
.related-head .kicker{font-size:12.5px;color:var(--lime-deep);letter-spacing:.08em;}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.card{
  display:flex;flex-direction:column;background:var(--mist);border:1px solid var(--line-light);
  border-radius:var(--r-card);overflow:hidden;transition:all var(--tr);
}
.card:hover{transform:translateY(-3px);border-color:rgba(110,143,20,.35);box-shadow:var(--sh-light);}
.card:hover .card-title{color:var(--lime-deep);}
.card-thumb{aspect-ratio:16/10;overflow:hidden;border-bottom:1px solid var(--line-light);}
.card-thumb img{width:100%;height:100%;object-fit:cover;}
.card-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-title{font-size:17px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color var(--tr);}
.card-text{font-size:14px;color:var(--t-light-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--t-light-2);}
.card-foot i{transition:transform var(--tr);}
.card:hover .card-foot i{transform:translateX(4px);color:var(--lime-deep);}
.empty-box{
  height:120px;display:grid;place-items:center;gap:10px;text-align:center;
  border:1px dashed var(--bd-light);border-radius:var(--r-card);color:var(--t-light-2);font-size:14px;
  background:#FBFCF9;padding:16px;
}

/* ---------- 侧栏 ---------- */
.sidebar{position:sticky;top:96px;display:grid;gap:20px;}
.side-card{background:var(--white);border:1px solid var(--line-light);border-radius:var(--r-card);padding:22px 22px 24px;box-shadow:var(--sh-light);}
.side-card h3{font-size:15px;font-weight:700;display:flex;align-items:center;gap:8px;margin-bottom:16px;}
.side-card h3 i{color:var(--lime-deep);font-size:13px;}
.toc-list{display:grid;gap:2px;max-height:280px;overflow:auto;}
.toc-list a{display:block;padding:8px 10px;font-size:13.5px;color:var(--t-light-2);border-radius:8px;line-height:1.5;}
.toc-list a:hover{background:var(--mist);color:var(--lime-deep);}
.toc-list .toc-empty{font-size:13px;color:var(--t-light-2);padding:6px 10px;}
.side-links{display:grid;gap:2px;}
.side-links a{display:flex;flex-direction:column;gap:4px;padding:12px 10px;border-radius:10px;transition:background var(--tr);}
.side-links a:hover{background:var(--mist);}
.side-links strong{font-size:14px;font-weight:600;line-height:1.5;color:var(--t-light);}
.side-links span{font-size:12px;color:var(--t-light-2);}
.side-links a:hover strong{color:var(--lime-deep);}
.side-cta{
  border:1px solid rgba(110,143,20,.4);background:linear-gradient(160deg,#1B2117,#101314);
  color:var(--t-dark);border-radius:var(--r-card);padding:24px 22px;
}
.side-cta h3{font-size:17px;font-weight:700;color:var(--t-dark);margin-bottom:10px;}
.side-cta p{font-size:13.5px;color:var(--t-dark-2);line-height:1.75;margin-bottom:18px;}
.side-cta .btn{width:100%;}

/* ---------- 结尾 CTA ---------- */
.cta-strip{
  background:var(--ink);color:var(--t-dark);border-top:1px solid var(--bd-dark);border-bottom:1px solid var(--bd-dark);
  position:relative;overflow:hidden;padding:72px 0;
}
.cta-strip::before{
  content:"";position:absolute;inset:0;
  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:56px 56px;
}
.cta-inner{position:relative;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;}
.cta-inner h2{font-size:clamp(22px,2.4vw,30px);font-weight:800;line-height:1.3;margin-bottom:10px;}
.cta-inner p{color:var(--t-dark-2);font-size:15px;max-width:520px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--t-dark-2);padding:64px 0 24px;position:relative;}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;background:var(--bd-dark);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand strong{display:block;color:var(--t-dark);font-size:16px;margin-bottom:10px;}
.footer-brand p{font-size:13.5px;line-height:1.85;color:var(--t-dark-2);max-width:340px;}
.footer-col h4{color:var(--t-dark);font-size:14px;font-weight:700;margin-bottom:16px;letter-spacing:.04em;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:13.5px;color:var(--t-dark-2);}
.footer-col a:hover{color:var(--lime);}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--bd-dark);
  display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:12.5px;color:#7C857C;
}
.to-top{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--bd-dark);
  display:grid;place-items:center;color:var(--t-dark-2);transition:all var(--tr);
}
.to-top:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-2px);}

/* ---------- 移动吸底 CTA ---------- */
.mobile-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:100;display:none;
  align-items:center;gap:12px;padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  background:rgba(12,14,17,.96);border-top:1px solid var(--bd-dark);
}
.mobile-bar .btn-primary{flex:1;padding:13px 18px;}
.mobile-bar .icon-btn{width:44px;height:44px;flex:0 0 auto;}

@media (max-width:1279px){
  .layout{gap:36px;grid-template-columns:minmax(0,1fr) 280px;}
  .article-main{padding:38px 36px;}
}
@media (max-width:1023px){
  .nav-links{display:none;}
  .nav-toggle{display:grid;}
  .command-search{display:none;}
  .layout{grid-template-columns:minmax(0,1fr);gap:32px;padding-bottom:140px;}
  .sidebar{position:static;grid-template-columns:repeat(2,minmax(0,1fr));}
  .side-cta{grid-column:1/-1;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .mobile-bar{display:flex;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .cta-strip{padding:56px 0;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 20px;}
  .nav-cta{display:none;}
  .article-top{padding:20px 0 40px;}
  .post-head{flex-direction:column;gap:18px;}
  .post-actions{padding-top:0;}
  .layout{padding:32px 20px 140px;}
  .article-main{padding:26px 20px;border-radius:16px;}
  .post-body{font-size:16px;line-height:1.85;}
  .post-body img{margin:24px 0;border-radius:12px;}
  .sidebar{grid-template-columns:minmax(0,1fr);}
  .related-grid{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
}
@media (max-width:519px){
  .post-head h1{font-size:26px;}
  .btn{padding:12px 20px;font-size:14.5px;}
  .article-main{padding:22px 16px;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *{transition:none!important;animation:none!important;}
}

/* roulang page: category1 */
:root{
  --ink:#0C0E11;
  --ink-2:#161A1F;
  --ink-3:#1C2128;
  --mist:#F5F6F3;
  --white:#FFFFFF;
  --mist-line:#EDEFEA;
  --lime:#C6F24E;
  --lime-deep:#6E8F14;
  --magenta:#FF4D8D;
  --cyan:#3AD6D6;
  --t-dark:#F2F4F0;
  --t-dark-2:#A8B0A6;
  --t-light:#14171A;
  --t-light-2:#5C635B;
  --line-dark:rgba(255,255,255,.08);
  --line-light:#DFE3DA;
  --ok:#4ED08A;
  --warn:#FFB13C;
  --err:#FF4D8D;
  --r-card:18px;
  --r-img:14px;
  --r-pill:999px;
  --r-badge:6px;
  --r-step:12px;
  --sh-dark:0 18px 48px rgba(0,0,0,.45);
  --sh-light:0 12px 32px rgba(16,20,12,.08);
  --ease:cubic-bezier(.2,.8,.2,1);
  --dur:180ms;
  --font:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:17px;
  line-height:1.85;
  color:var(--t-light);
  background:var(--mist);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color var(--dur) var(--ease)}
a:hover{color:var(--lime-deep)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5{margin:0;font-weight:700;color:inherit;letter-spacing:-.01em;line-height:1.28}
p{margin:0}
button{font-family:inherit;cursor:pointer;border:0;background:none}
input{font-family:inherit}
figure{margin:0}
::selection{background:var(--lime);color:var(--ink)}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;
  transition:transform var(--dur) var(--ease),background-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease),color var(--dur) var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--lime);color:var(--ink);box-shadow:0 8px 24px rgba(198,242,78,.18)}
.btn-primary:hover{background:var(--lime);color:var(--ink);transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 12px 30px rgba(198,242,78,.26)}
.btn-ghost{color:var(--t-dark);padding:14px 8px}
.btn-ghost i{transition:transform var(--dur) var(--ease)}
.btn-ghost:hover{color:var(--lime)}
.btn-ghost:hover i{transform:translateX(4px)}
.btn-outline{border:1px solid var(--line-light);color:var(--t-light);background:transparent}
.btn-outline:hover{border-color:var(--lime-deep);color:var(--lime-deep);transform:translateY(-1px)}
.dark-section .btn-outline,.cta-band .btn-outline{border-color:var(--line-dark);color:var(--t-dark)}
.dark-section .btn-outline:hover,.cta-band .btn-outline:hover{border-color:var(--lime);color:var(--lime)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-block{width:100%}
.icon-btn{
  width:36px;height:36px;border-radius:50%;
  border:1px solid var(--line-dark);color:var(--t-dark);
  display:inline-flex;align-items:center;justify-content:center;font-size:14px;
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.icon-btn:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-1px)}

/* ===== 徽章 / 标签 ===== */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.06em;
  color:var(--magenta);text-transform:none;
}
.dark-section .eyebrow{color:var(--lime)}
.badge{
  display:inline-flex;align-items:center;
  padding:4px 10px;border-radius:var(--r-badge);
  font-size:12px;font-weight:600;letter-spacing:.02em;
  border:1px solid rgba(255,77,141,.35);
  background:rgba(255,77,141,.12);
  color:var(--magenta);
}
.badge-lime{border-color:rgba(110,143,20,.3);background:rgba(198,242,78,.18);color:var(--lime-deep)}
.dark-section .badge-lime{border-color:rgba(198,242,78,.3);background:rgba(198,242,78,.12);color:var(--lime)}
.count-badge{
  min-width:26px;height:26px;padding:0 8px;border-radius:var(--r-pill);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;font-variant-numeric:tabular-nums;
}

/* ===== 头部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--ink);
  border-bottom:1px solid transparent;
  transition:background-color var(--dur) var(--ease),border-color var(--dur) var(--ease),backdrop-filter var(--dur) var(--ease);
}
.site-header.is-scrolled{
  background:rgba(12,14,17,.88);
  backdrop-filter:blur(8px);
  border-bottom-color:var(--line-dark);
}
.header-inner{display:flex;align-items:center;gap:24px;height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--t-dark)}
.brand:hover{color:var(--t-dark)}
.brand-mark{
  width:32px;height:32px;border-radius:9px;background:var(--lime);color:var(--ink);
  display:inline-flex;align-items:center;justify-content:center;font-size:15px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text strong{font-size:16px;font-weight:800;letter-spacing:.02em}
.brand-text em{font-style:normal;font-size:11px;color:var(--t-dark-2);letter-spacing:.06em}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:8px}
.nav-links a{
  position:relative;font-size:14.5px;font-weight:500;color:var(--t-dark-2);
  padding:6px 0;transition:color var(--dur) var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;width:16px;
  background:var(--lime);opacity:0;transform:translateY(4px);
  transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.nav-links a:hover{color:var(--t-dark)}
.nav-links a.is-active{color:var(--lime)}
.nav-links a.is-active::after{opacity:1;transform:translateY(0)}
.header-tools{display:flex;align-items:center;gap:10px;margin-left:auto}
.command-search{
  display:flex;align-items:center;gap:8px;
  width:220px;padding:8px 12px;border-radius:var(--r-pill);
  background:var(--ink-2);border:1px solid var(--line-dark);
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.command-search i{font-size:13px;color:var(--t-dark-2)}
.command-search input{
  flex:1;min-width:0;background:none;border:0;outline:none;
  color:var(--t-dark);font-size:13.5px;
}
.command-search input::placeholder{color:var(--t-dark-2)}
.command-search:focus-within{border-color:var(--lime);box-shadow:0 0 0 3px rgba(198,242,78,.14)}
.kbd{
  font-size:11px;color:var(--t-dark-2);border:1px solid var(--line-dark);
  border-radius:5px;padding:1px 5px;font-variant-numeric:tabular-nums;
}
.menu-toggle{
  display:none;width:40px;height:40px;border-radius:50%;
  border:1px solid var(--line-dark);color:var(--t-dark);
  align-items:center;justify-content:center;font-size:15px;
}
.menu-toggle:hover{border-color:var(--lime);color:var(--lime)}

/* 移动抽屉 */
.drawer{
  position:fixed;inset:0;z-index:80;background:var(--ink);
  transform:translateX(100%);transition:transform 240ms var(--ease);
  display:flex;flex-direction:column;
  padding:calc(env(safe-area-inset-top) + 16px) 20px calc(env(safe-area-inset-bottom) + 16px);
}
.drawer.is-open{transform:translateX(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line-dark)}
.drawer-close{width:40px;height:40px;border-radius:50%;border:1px solid var(--line-dark);color:var(--t-dark);display:flex;align-items:center;justify-content:center}
.drawer-body{flex:1;overflow-y:auto;padding:22px 0}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:26px}
.drawer-nav a{
  padding:14px 12px;border-radius:12px;font-size:16px;font-weight:600;color:var(--t-dark);
  border-left:3px solid transparent;transition:background-color var(--dur) var(--ease),border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.drawer-nav a:hover{background:var(--ink-2)}
.drawer-nav a.is-active{color:var(--lime);border-left-color:var(--lime);background:var(--ink-2)}
.drawer-group h5{font-size:12px;letter-spacing:.08em;color:var(--t-dark-2);font-weight:600;margin-bottom:10px}
.drawer-group ul{display:flex;flex-direction:column;gap:2px;margin-bottom:24px}
.drawer-group a{display:block;padding:10px 12px;color:var(--t-dark-2);font-size:14.5px;border-radius:10px}
.drawer-group a:hover{color:var(--lime);background:var(--ink-2)}
.drawer-foot{padding-top:16px;border-top:1px solid var(--line-dark)}

/* ===== 色域板块 ===== */
.section{padding:120px 0}
.section-light{background:var(--mist);color:var(--t-light)}
.section-light + .section-light{padding-top:72px}
.section-white{background:var(--white);color:var(--t-light)}
.dark-section{background:var(--ink);color:var(--t-dark)}
.dark-section h1,.dark-section h2,.dark-section h3,.dark-section h4{color:var(--t-dark)}
.section-head{max-width:760px;margin-bottom:48px}
.section-head h2{margin:14px 0 14px;font-size:clamp(26px,3vw,40px);font-weight:700;line-height:1.25}
.section-head p{color:var(--t-light-2);font-size:16px}
.dark-section .section-head p{color:var(--t-dark-2)}

/* ===== Hero ===== */
.cat-hero{
  position:relative;overflow:hidden;
  padding:64px 0 72px;
  background-color:var(--ink);
  background-image:linear-gradient(rgba(12,14,17,.86),rgba(12,14,17,.9)),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:64px 64px;
  pointer-events:none;
}
.cat-hero .container{position:relative;z-index:2}
.cat-hero h1{
  font-size:clamp(30px,3.6vw,46px);font-weight:800;letter-spacing:-.02em;line-height:1.18;
  margin:16px 0 16px;
}
.hero-sub{font-size:17px;color:var(--t-dark-2);max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:28px}
.meta-strip{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;
}
.meta-chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:var(--r-pill);
  border:1px solid var(--line-dark);background:rgba(255,255,255,.02);
  font-size:13px;color:var(--t-dark-2);
}
.meta-chip i{color:var(--lime);font-size:12px}
.hero-media{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid rgba(198,242,78,.3);box-shadow:var(--sh-dark)}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.corner-tag{
  position:absolute;left:0;top:18px;
  padding:7px 16px 7px 14px;
  background:var(--lime);color:var(--ink);
  font-size:12px;font-weight:700;letter-spacing:.04em;
  clip-path:polygon(0 0,100% 0,calc(100% - 12px) 100%,0 100%);
}

/* ===== 步骤时间轴 ===== */
.step-timeline{position:relative}
.step{position:relative;display:grid;grid-template-columns:64px 1fr;gap:22px;padding-bottom:38px}
.step:last-child{padding-bottom:0}
.step::before{content:"";position:absolute;left:31px;top:70px;bottom:6px;width:1px;background:rgba(110,143,20,.3)}
.step:last-child::before{display:none}
.step-idx{
  width:64px;height:64px;border-radius:var(--r-step);
  background:var(--ink);color:var(--lime);
  display:grid;place-items:center;font-size:18px;font-weight:700;
  font-variant-numeric:tabular-nums;letter-spacing:.02em;
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.step:hover .step-idx{transform:translateY(-3px);box-shadow:0 12px 28px rgba(12,14,17,.22)}
.step-body{padding-top:6px}
.step-body h3{font-size:21px;font-weight:600;margin-bottom:8px}
.step-body p{color:var(--t-light-2);font-size:16px;line-height:1.85}
.step-figure{margin-top:18px;border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line-light)}
.step-figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
.img-cap{display:block;padding:10px 14px;font-size:13px;color:var(--t-light-2);background:var(--white);border-top:1px solid var(--line-light)}

/* 侧栏提示卡 */
.sticky-card{position:sticky;top:96px}
.side-card{
  background:var(--white);border:1px solid var(--line-light);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-light);
}
.side-card h3{font-size:19px;margin-bottom:6px}
.side-card .side-note{font-size:13.5px;color:var(--t-light-2);margin-bottom:18px}
.side-list{display:flex;flex-direction:column;gap:14px;margin-bottom:22px}
.side-list li{display:grid;grid-template-columns:22px 1fr;gap:10px;font-size:14.5px;color:var(--t-light-2);line-height:1.75}
.side-list i{color:var(--lime-deep);font-size:14px;margin-top:4px}

/* ===== 设备对照卡 ===== */
.device-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.device-card{
  background:var(--white);border:1px solid var(--line-light);border-radius:var(--r-card);
  padding:26px;transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
}
.device-card:hover{transform:translateY(-3px);box-shadow:var(--sh-light);border-color:rgba(110,143,20,.35)}
.device-head{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.device-icon{
  width:40px;height:40px;border-radius:12px;background:rgba(198,242,78,.22);color:var(--lime-deep);
  display:inline-flex;align-items:center;justify-content:center;font-size:16px;
}
.device-head h3{font-size:18px;font-weight:600}
.device-card dl{display:flex;flex-direction:column;gap:12px}
.device-card dt{font-size:12.5px;color:var(--t-light-2);letter-spacing:.04em}
.device-card dd{margin:2px 0 0;font-size:15px;color:var(--t-light);line-height:1.7}

/* ===== 卡点自查（暗域） ===== */
.check-list{display:flex;flex-direction:column;border-top:1px solid var(--line-dark)}
.check-item{
  display:grid;grid-template-columns:56px 1fr auto;gap:20px;align-items:center;
  padding:22px 16px;border-bottom:1px solid var(--line-dark);
  transition:background-color var(--dur) var(--ease);
}
.check-item:hover{background:var(--ink-2)}
.check-item:hover h3{color:var(--lime)}
.check-num{
  width:56px;height:44px;border-radius:10px;background:var(--ink-3);
  color:var(--cyan);display:grid;place-items:center;
  font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;
}
.check-item h3{font-size:17.5px;font-weight:600;margin-bottom:4px;transition:color var(--dur) var(--ease)}
.check-item p{font-size:14.5px;color:var(--t-dark-2);line-height:1.75}
.count-badge.dark{background:rgba(255,77,141,.14);color:var(--magenta);border:1px solid rgba(255,77,141,.3)}

/* ===== FAQ ===== */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start}
.faq-intro h2{margin:14px 0 14px;font-size:clamp(26px,3vw,40px);line-height:1.25}
.faq-intro p{color:var(--t-light-2);margin-bottom:22px}
.accordion{border:0;background:transparent;margin:0}
.accordion-item{
  background:var(--white);border:1px solid var(--line-light);border-radius:var(--r-img);
  margin-bottom:12px;overflow:hidden;transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.accordion-item:hover{border-color:rgba(110,143,20,.4)}
.accordion-title{
  display:block;position:relative;padding:18px 56px 18px 22px;
  font-size:17.5px;font-weight:600;color:var(--t-light);border:0;background:transparent;
  transition:color var(--dur) var(--ease);
}
.accordion-title:hover{color:var(--lime-deep)}
.accordion-title::before{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:20px;font-weight:400;color:var(--lime-deep);line-height:1;
}
.accordion-item.is-active .accordion-title::before{content:"−"}
.accordion-content{
  display:none;padding:16px 22px 20px;border:0;border-top:1px solid var(--mist-line);
  border-left:3px solid var(--lime);background:var(--mist-line);
  color:var(--t-light-2);font-size:15.5px;line-height:1.9;
}
.accordion-content p + p{margin-top:10px}

/* ===== 下一步引导条 ===== */
.next-band{
  background:var(--ink-2);border-top:1px solid var(--line-dark);border-bottom:1px solid var(--line-dark);
  padding:24px 0;
}
.next-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.next-inner p{color:var(--t-dark-2);font-size:15px}
.next-inner strong{color:var(--t-dark);font-weight:600}

/* ===== 结尾 CTA ===== */
.cta-band{
  position:relative;overflow:hidden;background:var(--ink);color:var(--t-dark);
  padding:96px 0;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:56px 56px;pointer-events:none;
}
.cta-inner{position:relative;z-index:2;max-width:720px}
.cta-inner h2{font-size:clamp(26px,3vw,40px);line-height:1.25;margin-bottom:14px}
.cta-inner p{color:var(--t-dark-2);margin-bottom:28px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ===== 浮动 CTA ===== */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:70;
  display:flex;align-items:center;gap:10px;
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease),visibility var(--dur);
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.float-mini{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 18px;border-radius:var(--r-pill);
  background:var(--ink-2);border:1px solid var(--line-dark);color:var(--t-dark);font-size:14px;
}
.float-mini:hover{border-color:var(--lime);color:var(--lime)}
.pulse-dot{width:6px;height:6px;border-radius:50%;background:var(--magenta);animation:pulse 1.8s var(--ease) infinite}
@keyframes pulse{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(1.5);opacity:.55}}

/* ===== 页脚 ===== */
.site-footer{
  position:relative;background:var(--ink);color:var(--t-dark);
  padding:72px 0 28px;border-top:1px solid var(--line-dark);
}
.site-footer::before{
  content:"";position:absolute;inset:0 0 auto;height:1px;
  background-image:repeating-linear-gradient(90deg,rgba(255,255,255,.16) 0 1px,transparent 1px 48px);
  opacity:.5;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px}
.footer-brand strong{display:block;font-size:16px;margin:18px 0 10px;color:var(--t-dark)}
.footer-brand p{font-size:14px;color:var(--t-dark-2);line-height:1.8;max-width:320px}
.footer-col h4{font-size:13px;letter-spacing:.08em;color:var(--t-dark-2);font-weight:600;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14.5px;color:var(--t-dark-2);transition:color var(--dur) var(--ease)}
.footer-col a:hover{color:var(--lime)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding-top:22px;border-top:1px solid var(--line-dark);
  font-size:13px;color:var(--t-dark-2);flex-wrap:wrap;
}
.to-top{
  width:38px;height:38px;border-radius:50%;border:1px solid var(--line-dark);
  display:inline-flex;align-items:center;justify-content:center;color:var(--t-dark);font-size:14px;
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease),transform var(--dur) var(--ease);
}
.to-top:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-2px)}

/* ===== 响应式 ===== */
@media screen and (max-width:1279px){
  .section{padding:104px 0}
  .section-light + .section-light{padding-top:64px}
}
@media screen and (max-width:1023px){
  body{padding-bottom:64px}
  .nav-links{display:none}
  .command-search{display:none}
  .header-tools .icon-btn{display:none}
  .header-tools .btn-primary{display:none}
  .menu-toggle{display:inline-flex}
  .header-inner{height:56px;gap:12px}
  .section{padding:88px 0}
  .section-light + .section-light{padding-top:56px}
  .cat-hero{padding:44px 0 52px}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .device-grid{grid-template-columns:1fr 1fr}
  .sticky-card{position:static}
  .float-cta{
    left:0;right:0;bottom:0;transform:none;opacity:1;visibility:visible;
    justify-content:space-between;gap:10px;
    padding:10px 16px calc(env(safe-area-inset-bottom) + 10px);
    background:var(--ink);border-top:1px solid var(--line-dark);
  }
  .float-cta .btn-primary{flex:1}
  .float-mini{padding:11px 14px}
  .site-footer{padding-bottom:calc(28px + 64px)}
}
@media screen and (max-width:767px){
  body{font-size:16px;line-height:1.85}
  .container{padding:0 20px}
  .section{padding:64px 0;padding-left:0;padding-right:0}
  .section-light + .section-light{padding-top:40px}
  .cat-hero{padding:36px 0 44px}
  .cat-hero h1{font-size:30px}
  .hero-media img{aspect-ratio:16/10}
  .step{grid-template-columns:48px 1fr;gap:16px;padding-bottom:30px}
  .step-idx{width:48px;height:48px;font-size:15px}
  .step::before{left:23px;top:54px}
  .step-body h3{font-size:18.5px}
  .device-grid{grid-template-columns:1fr}
  .check-item{grid-template-columns:48px 1fr;gap:14px;padding:18px 10px}
  .check-num{width:48px;height:40px}
  .count-badge{display:none}
  .cta-band{padding:64px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-brand{grid-column:1 / -1}
  .footer-brand p{max-width:none}
  .section-head{margin-bottom:32px}
}
@media screen and (max-width:519px){
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column-reverse;align-items:flex-start;gap:14px}
  .hero-actions .btn{width:100%}
  .btn-ghost{padding-left:0}
  .accordion-title{font-size:16px;padding:16px 48px 16px 18px}
  .accordion-content{padding:14px 18px 18px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
  --ink:#0C0E11;
  --surface:#161A1F;
  --card-dark:#1C2128;
  --mist:#F5F6F3;
  --white:#FFFFFF;
  --line-light:#EDEFEA;
  --lime:#C6F24E;
  --lime-deep:#6E8F14;
  --magenta:#FF4D8D;
  --magenta-deep:#B82A5E;
  --cyan:#3AD6D6;
  --text-dark:#F2F4F0;
  --text-dark-2:#A8B0A6;
  --text-light:#14171A;
  --text-light-2:#5C635B;
  --border-dark:rgba(255,255,255,.08);
  --border-light:#DFE3DA;
  --success:#4ED08A;
  --warn:#FFB13C;
  --r-card:18px;
  --r-img:14px;
  --r-pill:999px;
  --r-badge:6px;
  --r-step:12px;
  --shadow-dark:0 18px 48px rgba(0,0,0,.45);
  --shadow-light:0 12px 32px rgba(16,20,12,.08);
  --t:180ms cubic-bezier(.2,.8,.2,1);
  --container:1240px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--text-light);
  background:var(--white);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color var(--t);}
a:hover{color:var(--lime-deep);}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-0.01em;}
p{margin:0;}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px;}

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

.grid-x{display:flex;flex-wrap:wrap;margin-left:-12px;margin-right:-12px;}
.cell{flex:0 0 auto;width:100%;padding-left:12px;padding-right:12px;}
@media (min-width:768px){
  .container{padding:0 24px;}
  .grid-x{margin-left:-14px;margin-right:-14px;}
  .cell{padding-left:14px;padding-right:14px;}
  .medium-3{width:25%;}
  .medium-4{width:33.3333%;}
  .medium-6{width:50%;}
  .medium-7{width:58.3333%;}
  .medium-8{width:66.6667%;}
  .medium-9{width:75%;}
  .medium-12{width:100%;}
}
@media (min-width:1024px){
  .container{padding:0 32px;}
  .grid-x{margin-left:-16px;margin-right:-16px;}
  .cell{padding-left:16px;padding-right:16px;}
  .large-3{width:25%;}
  .large-4{width:33.3333%;}
  .large-5{width:41.6667%;}
  .large-6{width:50%;}
  .large-7{width:58.3333%;}
  .large-8{width:66.6667%;}
  .large-9{width:75%;}
  .large-12{width:100%;}
}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(12,14,17,.94);
  border-bottom:1px solid var(--border-dark);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  transition:background var(--t),box-shadow var(--t);
}
.site-header.is-scrolled{background:rgba(12,14,17,.99);box-shadow:0 10px 30px rgba(0,0,0,.35);}
.header-inner{display:flex;align-items:center;gap:20px;height:64px;}
.brand{display:flex;align-items:center;gap:10px;color:var(--text-dark);flex:0 0 auto;}
.brand:hover{color:var(--text-dark);}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,var(--lime),var(--cyan));
  color:var(--ink);display:grid;place-items:center;font-size:15px;
  box-shadow:0 0 0 1px rgba(198,242,78,.25);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:15px;font-weight:800;letter-spacing:.02em;}
.brand-text em{font-style:normal;font-size:10px;letter-spacing:.14em;color:var(--text-dark-2);}

.nav-links{display:none;align-items:center;gap:4px;margin-left:8px;}
.nav-links a{
  position:relative;display:inline-block;padding:8px 12px;border-radius:8px;
  font-size:14px;color:var(--text-dark-2);
}
.nav-links a:hover{color:var(--lime);background:rgba(255,255,255,.04);}
.nav-links a.is-active{color:var(--lime);}
.nav-links a.is-active::after{
  content:"";position:absolute;left:50%;bottom:0;width:16px;height:2px;
  background:var(--lime);border-radius:2px;transform:translateX(-50%);
}
@media (min-width:1024px){ .nav-links{display:flex;} }

.header-tools{margin-left:auto;display:flex;align-items:center;gap:10px;}
.command-search{
  display:none;align-items:center;gap:8px;width:220px;height:38px;
  padding:0 12px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.1);background:rgba(255,255,255,.04);
  color:var(--text-dark-2);font-size:13px;
  transition:border-color var(--t),background var(--t);
}
.command-search:focus-within{border-color:rgba(198,242,78,.6);background:rgba(255,255,255,.07);}
.command-search i{font-size:12px;}
.command-search input{
  flex:1;min-width:0;border:0;background:transparent;color:var(--text-dark);
  font-size:13px;outline:none;
}
.command-search input::placeholder{color:#6E7670;}
.command-search kbd{
  font-family:inherit;font-size:10px;letter-spacing:.04em;
  padding:2px 6px;border-radius:5px;
  border:1px solid rgba(255,255,255,.14);color:var(--text-dark-2);
}
@media (min-width:1024px){ .command-search{display:flex;} }

.icon-btn{
  width:36px;height:36px;border-radius:50%;
  display:none;place-items:center;
  border:1px solid rgba(255,255,255,.14);color:var(--text-dark-2);
  font-size:14px;transition:var(--t);
}
.icon-btn:hover{border-color:var(--lime);color:var(--lime);}
@media (min-width:768px){ .icon-btn{display:grid;} }

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:14px 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1.2;border:1px solid transparent;
  transition:transform var(--t),filter var(--t),background var(--t),color var(--t),border-color var(--t);
}
.btn-primary{background:var(--lime);color:var(--ink);box-shadow:0 8px 24px rgba(198,242,78,.2);}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);color:var(--ink);}
.btn-outline{border-color:rgba(255,255,255,.24);color:var(--text-dark);background:transparent;}
.btn-outline:hover{border-color:var(--lime);color:var(--lime);}
.btn-darkline{border-color:var(--text-light);color:var(--text-light);background:transparent;}
.btn-darkline:hover{background:var(--text-light);color:var(--mist);}
.btn-sm{padding:10px 20px;min-height:40px;font-size:14px;}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;padding:0;
  font-size:15px;font-weight:600;color:var(--lime-deep);
}
.btn-ghost i{transition:transform var(--t);}
.btn-ghost:hover{color:var(--magenta-deep);}
.btn-ghost:hover i{transform:translateX(4px);}
.btn-ghost.light{color:var(--lime);}
.btn-ghost.light:hover{color:var(--magenta);}

.hamburger{
  width:40px;height:40px;border-radius:10px;display:grid;place-items:center;
  border:1px solid rgba(255,255,255,.14);color:var(--text-dark);font-size:15px;
}
@media (min-width:1024px){ .hamburger{display:none;} }

/* 移动抽屉 */
.drawer{
  position:fixed;inset:0;z-index:120;background:var(--ink);
  transform:translateX(100%);transition:transform 240ms cubic-bezier(.2,.8,.2,1);
  display:flex;flex-direction:column;padding:20px 20px calc(20px + env(safe-area-inset-bottom));
  visibility:hidden;
}
.drawer.is-open{transform:translateX(0);visibility:visible;}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px;}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid rgba(255,255,255,.14);color:var(--text-dark);display:grid;place-items:center;}
.drawer-search{
  display:flex;align-items:center;gap:8px;height:44px;padding:0 14px;
  border-radius:var(--r-pill);border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.04);margin-bottom:24px;
}
.drawer-search input{flex:1;min-width:0;border:0;background:transparent;color:var(--text-dark);font-size:14px;outline:none;}
.drawer-label{font-size:12px;letter-spacing:.16em;color:#6E7670;margin-bottom:10px;}
.drawer-links{display:flex;flex-direction:column;margin-bottom:24px;}
.drawer-links a{
  padding:15px 0;font-size:16px;color:var(--text-dark);
  border-bottom:1px solid var(--border-dark);display:flex;justify-content:space-between;align-items:center;
}
.drawer-links a.is-active{color:var(--lime);}
.drawer-links a i{font-size:12px;color:#5C635B;}
.drawer-cta{margin-top:auto;display:flex;flex-direction:column;gap:10px;}

/* ---------- 通用板块 ---------- */
.sec{padding:64px 0;}
@media (min-width:768px){ .sec{padding:88px 0;} }
@media (min-width:1024px){ .sec{padding:120px 0;} }
.sec-mist{background:var(--mist);}
.sec-white{background:var(--white);}
.sec-dark{background:var(--ink);color:var(--text-dark);position:relative;overflow:hidden;}
.sec-dark::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.06;
  background-image:linear-gradient(rgba(255,255,255,.7) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.7) 1px,transparent 1px);
  background-size:64px 64px;
}
.sec-dark > *{position:relative;z-index:1;}
.sec-line{border-top:1px solid var(--border-light);}

.eyebrow{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.16em;
  color:var(--lime-deep);text-transform:uppercase;margin-bottom:14px;
}
.sec-dark .eyebrow{color:var(--lime);}
.sec-title{font-size:clamp(26px,3vw,40px);line-height:1.25;font-weight:700;}
.sec-title::before{
  content:"";display:inline-block;width:4px;height:.82em;border-radius:2px;
  background:var(--lime);margin-right:12px;vertical-align:-0.06em;
}
.sec-lead{margin-top:14px;color:var(--text-light-2);font-size:16px;max-width:640px;}
.sec-dark .sec-lead{color:var(--text-dark-2);}
.sec-head{margin-bottom:36px;}
@media (min-width:768px){ .sec-head{margin-bottom:48px;} }

.badge{
  display:inline-flex;align-items:center;gap:6px;padding:4px 10px;
  font-size:12px;letter-spacing:.04em;border-radius:var(--r-badge);
  border:1px solid rgba(255,77,141,.45);background:rgba(255,77,141,.1);
  color:var(--magenta-deep);
}
.sec-dark .badge{color:var(--magenta);}
.badge-slant{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 16px 7px 14px;font-size:12px;font-weight:600;letter-spacing:.08em;
  background:rgba(198,242,78,.16);color:#3F5208;
  clip-path:polygon(10px 0,100% 0,100% 100%,0 100%,0 10px);
}
.sec-dark .badge-slant{background:rgba(198,242,78,.16);color:var(--lime);}

/* ---------- 分类 Hero ---------- */
.cat-hero{
  background:var(--mist);
  padding:56px 0 64px;
  border-bottom:1px solid var(--border-light);
}
@media (min-width:768px){ .cat-hero{padding:72px 0 80px;} }
@media (min-width:1024px){ .cat-hero{padding:88px 0 96px;} }
.cat-hero h1{
  font-size:clamp(30px,4vw,48px);
  line-height:1.18;font-weight:800;letter-spacing:-0.02em;
  margin:18px 0 14px;
}
.cat-hero .hero-lead{
  font-size:18px;font-weight:600;color:var(--text-light);
  margin-bottom:12px;
}
.cat-hero .hero-desc{color:var(--text-light-2);font-size:16px;max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero-marks{display:flex;flex-wrap:wrap;gap:20px;margin-top:32px;padding-top:24px;border-top:1px solid var(--border-light);}
.hero-marks span{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--text-light-2);}
.hero-marks i{color:var(--lime-deep);font-size:13px;}
.hero-visual{position:relative;margin-top:36px;}
@media (min-width:1024px){ .hero-visual{margin-top:0;} }
.hero-visual img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-img);border:1px solid var(--border-light);
  box-shadow:var(--shadow-light);
}
.hero-visual .tag-float{
  position:absolute;left:0;bottom:-14px;
  background:var(--ink);color:var(--lime);
  padding:9px 18px 9px 16px;font-size:12px;font-weight:700;letter-spacing:.1em;
  clip-path:polygon(12px 0,100% 0,100% 100%,0 100%,0 12px);
}

/* ---------- 速览卡 ---------- */
.quickcards{margin-top:-32px;}
.quickcard{
  background:var(--white);border:1px solid var(--border-light);border-radius:var(--r-card);
  padding:26px 22px;height:100%;
  box-shadow:0 8px 22px rgba(16,20,12,.05);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.quickcard:hover{transform:translateY(-3px);border-color:rgba(110,143,20,.4);box-shadow:0 16px 34px rgba(16,20,12,.1);}
.quickcard .qi{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  background:rgba(198,242,78,.2);color:#3F5208;font-size:16px;margin-bottom:16px;
}
.quickcard h3{font-size:18px;font-weight:600;margin-bottom:8px;}
.quickcard p{font-size:14px;color:var(--text-light-2);line-height:1.7;}
.quickcard .cell{margin-bottom:24px;}

/* ---------- Zig-zag ---------- */
.zig{display:flex;flex-wrap:wrap;align-items:center;margin-bottom:56px;}
.zig:last-child{margin-bottom:0;}
@media (min-width:1024px){ .zig{margin-bottom:88px;} }
.zig .zig-media{margin-bottom:24px;}
@media (min-width:1024px){
  .zig .zig-media{margin-bottom:0;}
  .zig.flip .zig-text{order:2;}
  .zig.flip .zig-media{order:1;}
  .zig .zig-text{padding-right:32px;}
  .zig.flip .zig-text{padding-right:0;padding-left:32px;}
}
.zig-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-img);border:1px solid var(--border-light);
  box-shadow:var(--shadow-light);
  transition:transform var(--t),box-shadow var(--t);
}
.zig-media img:hover{transform:translateY(-3px);box-shadow:0 20px 42px rgba(16,20,12,.14);}
.zig-text .eyebrow{margin-bottom:10px;}
.zig-text h3{font-size:clamp(20px,2.2vw,26px);line-height:1.35;margin-bottom:14px;font-weight:700;}
.zig-text p{color:var(--text-light-2);font-size:16px;margin-bottom:18px;}

/* ---------- 对比区 ---------- */
.compare-wrap{margin-top:8px;}
.compare-card{
  height:100%;background:var(--white);border:1px solid var(--border-light);
  border-radius:var(--r-card);padding:28px 24px;
  box-shadow:0 8px 22px rgba(16,20,12,.05);
}
.compare-card .cell-in{margin-bottom:24px;}
.compare-card h3{font-size:19px;margin-bottom:6px;display:flex;align-items:center;gap:10px;}
.compare-card .dot{width:8px;height:8px;border-radius:50%;display:inline-block;}
.compare-card.lime{border-top:3px solid var(--lime);}
.compare-card.lime .dot{background:var(--lime-deep);}
.compare-card.mag{border-top:3px solid var(--magenta);}
.compare-card.mag .dot{background:var(--magenta);}
.compare-card ul{margin-top:16px;}
.compare-card li{
  display:flex;gap:12px;align-items:flex-start;
  padding:13px 0;border-bottom:1px solid var(--line-light);
  font-size:15px;color:var(--text-light);
}
.compare-card li:last-child{border-bottom:0;}
.compare-card li i{margin-top:6px;font-size:12px;flex:0 0 auto;}
.compare-card.lime li i{color:var(--lime-deep);}
.compare-card.mag li i{color:var(--magenta);}

/* ---------- 速查列表（暗域） ---------- */
.ref-list{border-top:1px solid var(--border-dark);}
.ref-item{
  display:flex;align-items:center;gap:16px;
  padding:18px 12px;border-bottom:1px solid var(--border-dark);
  transition:background var(--t);
}
.ref-item:hover{background:rgba(255,255,255,.04);}
.ref-item .ri{
  width:34px;height:34px;flex:0 0 auto;border-radius:10px;display:grid;place-items:center;
  border:1px solid rgba(198,242,78,.4);color:var(--lime);font-size:13px;
}
.ref-item .rt{flex:1;min-width:0;}
.ref-item .rt strong{display:block;font-size:16px;font-weight:600;color:var(--text-dark);transition:color var(--t);}
.ref-item:hover .rt strong{color:var(--lime);}
.ref-item .rt span{font-size:13px;color:var(--text-dark-2);}
.ref-item .ra{color:#5C635B;font-size:13px;transition:transform var(--t),color var(--t);}
.ref-item:hover .ra{transform:translateX(4px);color:var(--lime);}

/* ---------- FAQ ---------- */
.faq-aside{position:static;margin-bottom:32px;}
@media (min-width:1024px){ .faq-aside{position:sticky;top:96px;margin-bottom:0;} }
.accordion-custom{border-top:1px solid var(--border-light);}
.accordion-item{border-bottom:1px solid var(--border-light);}
.accordion-title{
  display:flex;justify-content:space-between;align-items:center;gap:20px;
  padding:22px 0;font-size:17px;font-weight:600;color:var(--text-light);
  cursor:pointer;transition:color var(--t);
}
.accordion-title:hover{color:var(--lime-deep);}
.accordion-title .tg{
  width:28px;height:28px;flex:0 0 auto;border-radius:50%;
  border:1px solid var(--border-light);display:grid;place-items:center;
  font-size:11px;color:var(--text-light-2);transition:transform var(--t),border-color var(--t),color var(--t);
}
.accordion-item.is-open .accordion-title{color:var(--lime-deep);}
.accordion-item.is-open .accordion-title .tg{transform:rotate(135deg);border-color:var(--lime);color:var(--lime-deep);}
.accordion-content{
  display:none;padding:0 0 24px 18px;margin-bottom:4px;
  border-left:3px solid var(--lime);
  color:var(--text-light-2);font-size:16px;line-height:1.9;
}
.accordion-item.is-open .accordion-content{display:block;}

/* ---------- CTA 通栏 ---------- */
.cta-band{
  background:var(--ink);color:var(--text-dark);position:relative;overflow:hidden;
  padding:64px 0;
}
@media (min-width:1024px){ .cta-band{padding:96px 0;} }
.cta-band::before{
  content:"";position:absolute;inset:0;opacity:.07;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.7) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.7) 1px,transparent 1px);
  background-size:72px 72px;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;
  background:radial-gradient(circle,rgba(198,242,78,.16),transparent 68%);
  pointer-events:none;
}
.cta-inner{position:relative;z-index:1;text-align:left;}
.cta-band h2{font-size:clamp(26px,3.2vw,42px);line-height:1.25;margin-bottom:14px;}
.cta-band p{color:var(--text-dark-2);max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}

/* ---------- 浮动 CTA ---------- */
.floating-cta{
  position:fixed;right:24px;bottom:24px;z-index:90;
  display:flex;align-items:center;gap:10px;
  opacity:0;transform:translateY(14px);pointer-events:none;
  transition:opacity var(--t),transform var(--t);
}
.floating-cta.is-visible{opacity:1;transform:none;pointer-events:auto;}
.floating-cta .btn-primary::after{
  content:"";width:7px;height:7px;border-radius:50%;background:var(--magenta);
  margin-left:4px;animation:pulse 2.2s infinite;
}
@keyframes pulse{0%,100%{opacity:.35;transform:scale(.85);}50%{opacity:1;transform:scale(1.15);}}
@media (max-width:1023px){ .floating-cta{display:none;} }

.sticky-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:90;
  display:none;align-items:center;gap:12px;height:64px;
  padding:0 16px calc(env(safe-area-inset-bottom));
  background:rgba(12,14,17,.97);border-top:1px solid var(--border-dark);
  backdrop-filter:blur(8px);
}
.sticky-bar .sb-note{flex:1;min-width:0;font-size:13px;color:var(--text-dark-2);}
.sticky-bar .btn{flex:0 0 auto;}
.sb-icon{
  width:44px;height:44px;flex:0 0 auto;border-radius:50%;
  border:1px solid rgba(255,255,255,.16);color:var(--text-dark);
  display:grid;place-items:center;font-size:14px;
}
@media (max-width:1023px){
  .sticky-bar{display:flex;}
  body{padding-bottom:76px;}
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink);color:var(--text-dark-2);
  padding:64px 0 28px;position:relative;overflow:hidden;
}
.site-footer::before{
  content:"";position:absolute;inset:0;opacity:.05;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.7) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.7) 1px,transparent 1px);
  background-size:64px 64px;
}
.site-footer > *{position:relative;z-index:1;}
.footer-grid{display:flex;flex-wrap:wrap;margin:0 -14px 48px;}
.footer-grid > *{padding:0 14px;margin-bottom:32px;}
.footer-brand{width:100%;}
@media (min-width:768px){
  .footer-brand{width:40%;}
  .footer-col{width:20%;}
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand strong{display:block;color:var(--text-dark);font-size:16px;font-weight:700;margin-bottom:10px;}
.footer-brand p{font-size:14px;line-height:1.8;max-width:340px;}
.footer-col h4{font-size:13px;letter-spacing:.1em;color:var(--text-dark);font-weight:700;margin-bottom:16px;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:var(--text-dark-2);}
.footer-col a:hover{color:var(--lime);}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  padding-top:24px;border-top:1px solid var(--border-dark);font-size:13px;
}
.to-top{
  width:40px;height:40px;border-radius:50%;display:grid;place-items:center;
  border:1px solid rgba(255,255,255,.16);color:var(--text-dark-2);font-size:13px;
  transition:var(--t);
}
.to-top:hover{border-color:var(--lime);color:var(--lime);transform:translateY(-3px);}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important;}
}

/* roulang page: category3 */
/* ============ 设计变量 ============ */
:root{
  --ink:#0C0E11;
  --ink-2:#161A1F;
  --ink-3:#1C2128;
  --mist:#F5F6F3;
  --white:#FFFFFF;
  --line-soft:#EDEFEA;
  --lime:#C6F24E;
  --lime-deep:#6E8F14;
  --magenta:#FF4D8D;
  --cyan:#3AD6D6;
  --t-dark:#F2F4F0;
  --t-dark-2:#A8B0A6;
  --t-light:#14171A;
  --t-light-2:#5C635B;
  --line-dark:rgba(255,255,255,.08);
  --line-light:#DFE3DA;
  --success:#4ED08A;
  --warn:#FFB13C;
  --r-card:18px;
  --r-img:14px;
  --r-pill:999px;
  --shadow-dark:0 18px 48px rgba(0,0,0,.45);
  --shadow-light:0 12px 32px rgba(16,20,12,.08);
  --ease:cubic-bezier(.2,.8,.2,1);
}
/* ============ 基础 ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;line-height:1.85;color:var(--t-light);background:var(--mist);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--lime-deep)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5,p{margin:0}
button{background:none;border:0;cursor:pointer;font:inherit;color:inherit}
input{font:inherit}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}
.section{padding:120px 0}
@media(max-width:1023px){.section{padding:88px 0}}
@media(max-width:767px){
  .container{padding:0 20px}
  .section{padding:64px 0}
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease),filter .18s var(--ease);
}
.btn-primary{background:var(--lime);color:#0C0E11}
.btn-primary:hover{color:#0C0E11;filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 12px 28px rgba(198,242,78,.18)}
.btn-ghost{background:transparent;color:var(--t-dark);border-color:var(--line-dark)}
.btn-ghost:hover{color:var(--lime);border-color:rgba(198,242,78,.55);transform:translateY(-1px)}
.btn-line{background:transparent;color:var(--t-light);border-color:var(--line-light)}
.btn-line:hover{color:var(--lime-deep);border-color:var(--lime-deep);transform:translateY(-1px)}
.btn-sm{padding:10px 18px;font-size:14px}
.icon-btn{
  width:38px;height:38px;border-radius:var(--r-pill);
  border:1px solid var(--line-dark);display:grid;place-items:center;
  color:var(--t-dark-2);transition:all .18s var(--ease);
}
.icon-btn:hover{color:var(--lime);border-color:rgba(198,242,78,.55);transform:translateY(-1px)}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(12,14,17,.72);
  backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
  border-bottom:1px solid transparent;
  transition:background .25s var(--ease),border-color .25s var(--ease);
}
.site-header.is-scrolled{background:rgba(12,14,17,.94);border-bottom-color:var(--line-dark)}
.header-inner{display:flex;align-items:center;gap:22px;height:64px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--lime),#9ED21F);color:#0C0E11;font-size:15px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:16px;font-weight:800;letter-spacing:-.01em;color:var(--t-dark)}
.brand-text em{font-style:normal;font-size:10px;letter-spacing:.06em;color:var(--t-dark-2)}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:6px}
.nav-links a{
  position:relative;padding:8px 12px;font-size:15px;color:rgba(242,244,240,.78);border-radius:8px;
}
.nav-links a:hover{color:var(--lime)}
.nav-links a.is-active{color:var(--lime)}
.nav-links a.is-active::after{
  content:"";position:absolute;left:12px;bottom:1px;width:16px;height:2px;border-radius:2px;background:var(--lime);
}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.command-search{
  display:flex;align-items:center;gap:8px;width:220px;height:38px;padding:0 12px;
  border:1px solid var(--line-dark);border-radius:var(--r-pill);background:rgba(255,255,255,.04);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease);
}
.command-search i{font-size:13px;color:var(--t-dark-2)}
.command-search input{
  flex:1;min-width:0;background:none;border:0;outline:none;color:var(--t-dark);font-size:14px;
}
.command-search input::placeholder{color:rgba(168,176,166,.85)}
.command-search .kbd{
  font-size:11px;padding:2px 6px;border-radius:6px;border:1px solid var(--line-dark);color:var(--t-dark-2);
  font-family:Inter,system-ui,sans-serif;
}
.command-search:focus-within{border-color:rgba(198,242,78,.5);background:rgba(255,255,255,.06);box-shadow:0 0 0 4px rgba(198,242,78,.08)}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line-dark);
  color:var(--t-dark);align-items:center;justify-content:center;
}
.nav-toggle:hover{color:var(--lime);border-color:rgba(198,242,78,.55)}

/* ============ 移动抽屉 ============ */
.drawer{
  position:fixed;inset:0;z-index:95;background:var(--ink);
  display:flex;flex-direction:column;gap:22px;
  padding:18px 20px calc(20px + env(safe-area-inset-bottom));
  transform:translateY(-102%);visibility:hidden;
  transition:transform .3s var(--ease),visibility .3s var(--ease);
  overflow-y:auto;
}
.drawer.is-open{transform:none;visibility:visible}
.drawer__top{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer__close{width:40px;height:40px;border-radius:10px;border:1px solid var(--line-dark);color:var(--t-dark);display:grid;place-items:center}
.drawer__close:hover{color:var(--lime);border-color:rgba(198,242,78,.55)}
.drawer__search{display:flex;align-items:center;gap:10px;height:46px;padding:0 16px;border:1px solid var(--line-dark);border-radius:var(--r-pill);background:rgba(255,255,255,.04)}
.drawer__search input{flex:1;min-width:0;background:none;border:0;outline:none;color:var(--t-dark);font-size:15px}
.drawer__search i{color:var(--t-dark-2)}
.drawer__group h4{font-size:12px;letter-spacing:.1em;color:var(--t-dark-2);text-transform:uppercase;margin-bottom:8px}
.drawer__group a{
  display:block;padding:14px 4px;font-size:17px;color:var(--t-dark);
  border-bottom:1px solid var(--line-dark);
}
.drawer__group a:hover,.drawer__group a.is-active{color:var(--lime)}
.drawer__cta{margin-top:auto;display:flex;flex-direction:column;gap:12px;padding-top:12px}

/* ============ 面包屑 ============ */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(242,244,240,.6)}
.breadcrumb a:hover{color:var(--lime)}
.breadcrumb span{opacity:.45}
.breadcrumb em{font-style:normal;color:rgba(242,244,240,.82)}

/* ============ Hero ============ */
.page-hero{
  position:relative;overflow:hidden;background:var(--ink);color:var(--t-dark);
  padding:30px 0 0;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(12,14,17,.86),rgba(12,14,17,.97)),
             url("/assets/images/backpic/back-3.webp") center/cover no-repeat;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 85%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 85%);
}
.page-hero .container{position:relative;z-index:2}
.eyebrow{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.12em;
  color:var(--lime-deep);
}
.eyebrow--dark{color:var(--lime)}
.page-hero h1{
  margin-top:14px;
  font-size:clamp(28px,4vw,48px);font-weight:800;letter-spacing:-.02em;line-height:1.15;
  max-width:880px;
}
.hero-sub{margin-top:16px;font-size:17px;line-height:1.75;color:var(--t-dark-2);max-width:620px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 14px;border-radius:6px;font-size:12px;letter-spacing:.03em;
  border:1px solid rgba(255,77,141,.45);background:rgba(255,77,141,.12);color:#FFD3E3;
  transition:all .18s var(--ease);
}
.tag:hover{background:rgba(255,77,141,.22);color:#fff;border-color:rgba(255,77,141,.7)}
.quick-check{margin-top:42px;padding:26px 0 34px;border-top:1px solid var(--line-dark)}
.quick-check__label{display:flex;align-items:center;gap:10px;font-size:14px;font-weight:600;color:var(--t-dark)}
.pulse{
  width:8px;height:8px;border-radius:var(--r-pill);background:var(--lime);
  box-shadow:0 0 0 0 rgba(198,242,78,.55);animation:pulse 2.4s infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(198,242,78,.5)}
  70%{box-shadow:0 0 0 10px rgba(198,242,78,0)}
  100%{box-shadow:0 0 0 0 rgba(198,242,78,0)}
}
.quick-check__grid{margin-top:16px}
.qc-item{display:flex;gap:12px;align-items:flex-start;padding:10px 20px 10px 0}
.qc-item + .qc-item{border-left:1px solid var(--line-dark);padding-left:20px}
.qc-num{font-family:Inter,system-ui,sans-serif;font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--lime);padding-top:3px}
.qc-item p{font-size:14px;line-height:1.7;color:var(--t-dark-2)}

/* ============ 区块标题 ============ */
.section-head{max-width:720px;margin-bottom:46px}
.section-head h2{
  margin-top:12px;font-size:clamp(26px,3vw,40px);font-weight:700;line-height:1.25;letter-spacing:-.01em;
}
.section-head h2::before{
  content:"";display:inline-block;width:6px;height:.68em;border-radius:3px;
  background:var(--lime-deep);margin-right:14px;vertical-align:-1px;
}
.section-head p{margin-top:14px;font-size:16px;color:var(--t-light-2)}

/* ============ FAQ 主体 ============ */
.faq-main{background:var(--mist);border-top:1px solid var(--line-light)}
.faq-layout{display:grid;grid-template-columns:288px minmax(0,1fr);gap:48px;align-items:start}
.faq-nav{position:sticky;top:96px}
.faq-nav__card{
  background:var(--white);border:1px solid var(--line-light);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--shadow-light);
}
.faq-nav__card h3{font-size:13px;letter-spacing:.1em;text-transform:uppercase;color:#8B918A;margin-bottom:10px}
.faq-nav__item{
  position:relative;display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 14px;border-radius:10px;font-size:15px;color:var(--t-light-2);
  transition:background .18s var(--ease),color .18s var(--ease);
}
.faq-nav__item em{font-style:normal;font-size:12px;color:#8B918A;font-family:Inter,system-ui,sans-serif}
.faq-nav__item::before{
  content:"";position:absolute;left:2px;top:12px;bottom:12px;width:3px;border-radius:3px;background:transparent;
  transition:background .18s var(--ease);
}
.faq-nav__item:hover{background:var(--mist);color:var(--lime-deep)}
.faq-nav__item.is-active{background:rgba(198,242,78,.2);color:var(--t-light);font-weight:600}
.faq-nav__item.is-active::before{background:var(--lime-deep)}
.faq-nav__cta{margin-top:16px;width:100%}
.faq-groups{display:flex;flex-direction:column;gap:56px;min-width:0}
.faq-group{scroll-margin-top:104px}
.faq-group h3{
  font-size:22px;font-weight:600;padding-bottom:14px;border-bottom:1px solid var(--line-light);
  display:flex;align-items:center;gap:12px;
}
.faq-group h3 span{
  font-family:Inter,system-ui,sans-serif;font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--lime-deep);
}
.acc{border-top:1px solid transparent}
.acc-item{border-bottom:1px solid var(--line-light)}
.acc-head{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 2px;text-align:left;font-size:18px;font-weight:600;color:var(--t-light);line-height:1.6;
  transition:color .18s var(--ease);
}
.acc-head:hover{color:var(--lime-deep)}
.acc-icon{position:relative;flex:0 0 16px;width:16px;height:16px}
.acc-icon::before,.acc-icon::after{
  content:"";position:absolute;background:var(--lime-deep);border-radius:2px;
  transition:transform .22s var(--ease),opacity .22s var(--ease);
}
.acc-icon::before{left:0;top:7px;width:16px;height:2px}
.acc-icon::after{left:7px;top:0;width:2px;height:16px}
.acc-item.is-open .acc-icon::after{transform:scaleY(0);opacity:0}
.acc-item.is-open .acc-head{color:var(--lime-deep)}
.acc-panel{max-height:0;overflow:hidden;transition:max-height .24s var(--ease)}
.acc-body{
  margin-left:2px;padding:0 2px 22px 20px;border-left:3px solid var(--lime-deep);
  color:var(--t-light-2);font-size:16px;line-height:1.9;
}
.acc-body p + p{margin-top:12px}

/* ============ 反馈前准备 ============ */
.prep{background:var(--white);border-top:1px solid var(--line-light)}
.prep-grid{margin-top:4px}
.prep-card{
  background:var(--mist);border:1px solid var(--line-light);border-radius:var(--r-card);
  padding:26px;height:100%;
  transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.prep-card:hover{transform:translateY(-3px);border-color:rgba(110,143,20,.45);box-shadow:var(--shadow-light)}
.prep-card__icon{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:rgba(198,242,78,.35);color:#43570D;font-size:17px;
}
.prep-card h3{margin-top:18px;font-size:19px;font-weight:600}
.prep-card p{margin-top:10px;font-size:15px;line-height:1.8;color:var(--t-light-2)}

/* ============ 支持 CTA ============ */
.support-cta{position:relative;overflow:hidden;background:var(--ink);padding:96px 0}
.support-cta::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:72px 72px;
  -webkit-mask-image:radial-gradient(circle at 70% 20%,rgba(0,0,0,.9),transparent 78%);
  mask-image:radial-gradient(circle at 70% 20%,rgba(0,0,0,.9),transparent 78%);
}
.support-cta .container{position:relative;z-index:2}
.cta-card{
  display:flex;align-items:center;justify-content:space-between;gap:44px;
  padding:52px 56px;background:var(--ink-3);border:1px solid var(--line-dark);
  clip-path:polygon(0 0,calc(100% - 40px) 0,100% 40px,100% 100%,0 100%);
  box-shadow:var(--shadow-dark);
}
.cta-card h2{margin-top:12px;font-size:clamp(24px,2.8vw,36px);font-weight:700;color:var(--t-dark);line-height:1.3}
.cta-card p{margin-top:14px;font-size:16px;color:var(--t-dark-2);max-width:520px}
.cta-card__actions{display:flex;flex-wrap:wrap;gap:12px;flex:0 0 auto}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;background:var(--ink);color:var(--t-dark-2);
  border-top:1px solid var(--line-dark);padding:72px 0 28px;
}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:72px 72px;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.85),transparent 70%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.85),transparent 70%);
}
.site-footer .container{position:relative;z-index:2}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand .brand{margin-bottom:18px}
.footer-brand strong{display:block;color:var(--t-dark);font-size:17px;margin-bottom:10px}
.footer-brand p{font-size:14px;line-height:1.8;max-width:340px}
.footer-col h4{color:var(--t-dark);font-size:15px;font-weight:600;margin-bottom:16px}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:var(--t-dark-2)}
.footer-col a:hover{color:var(--lime)}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line-dark);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:13px;color:#7D857C;
}
.to-top{
  width:40px;height:40px;border-radius:var(--r-pill);border:1px solid var(--line-dark);
  display:grid;place-items:center;color:var(--t-dark-2);
  transition:all .18s var(--ease);
}
.to-top:hover{color:var(--lime);border-color:rgba(198,242,78,.55);transform:translateY(-2px)}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:70;
  display:flex;align-items:center;gap:10px;
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .28s var(--ease),transform .28s var(--ease),visibility .28s var(--ease);
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:none}

/* ============ 响应式 ============ */
@media(max-width:1023px){
  .nav-links,.command-search,.header-cta,.header-actions .icon-btn{display:none}
  .nav-toggle{display:inline-flex}
  .header-inner{height:56px}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .faq-nav{position:static}
  .faq-nav__card{display:flex;flex-wrap:wrap;gap:8px;padding:14px;align-items:center}
  .faq-nav__card h3{width:100%;margin-bottom:4px}
  .faq-nav__item{flex:1 1 auto;padding:10px 12px;font-size:14px;border:1px solid var(--line-light)}
  .faq-nav__item.is-active{border-color:rgba(110,143,20,.45)}
  .faq-nav__item::before{display:none}
  .faq-nav__item em{display:none}
  .faq-nav__cta{width:100%;margin-top:8px}
  .cta-card{flex-direction:column;align-items:flex-start;padding:38px 28px;gap:28px}
  .cta-card__actions{width:100%}
  .cta-card__actions .btn{flex:1 1 auto}
  .support-cta{padding:72px 0}
  .float-cta{
    left:0;right:0;bottom:0;justify-content:center;
    padding:10px 16px calc(10px + env(safe-area-inset-bottom));
    background:rgba(12,14,17,.97);border-top:1px solid var(--line-dark);
    opacity:1;visibility:visible;transform:none;
  }
  .float-cta .btn-primary{flex:1}
  .site-footer{padding-bottom:calc(96px + env(safe-area-inset-bottom))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media(max-width:767px){
  .qc-item{padding:12px 0}
  .qc-item + .qc-item{border-left:0;padding-left:0;border-top:1px solid var(--line-dark)}
  .acc-head{font-size:16px;padding:18px 2px}
  .acc-body{font-size:15px;padding-left:16px}
  .faq-groups{gap:44px}
  .faq-group h3{font-size:19px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:14px}
  .to-top{display:none}
  .cta-card h2{font-size:24px}
}
@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important}
  html{scroll-behavior:auto}
}