/* roulang page: index */
:root{
  --brand-1:#FF5A3C;
  --brand-2:#FF2E93;
  --brand-grad:linear-gradient(135deg,#FF5A3C 0%,#FF2E93 100%);
  --brand-grad-soft:linear-gradient(135deg,rgba(255,90,60,.12) 0%,rgba(255,46,147,.12) 100%);
  --teal:#16C7A8;
  --amber:#FFC53D;
  --ink:#14121A;
  --paper:#FBF7F4;
  --surface:#FFFFFF;
  --t1:#1B1820;
  --t2:#5C5663;
  --t3:#8B8590;
  --line:#EDE8E4;
  --stroke:#E4DDD8;
  --r-lg:24px;
  --r-md:16px;
  --r-btn:14px;
  --r-in:12px;
  --shadow-1:0 2px 8px rgba(20,18,26,.06);
  --shadow-2:0 12px 32px rgba(20,18,26,.10);
  --shadow-3:0 16px 40px rgba(255,90,60,.28);
  --gap-sec:96px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--t1);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease-out;}
a:hover{color:var(--brand-1);}
button,input{font-family:inherit;}
:focus-visible{outline:2px solid var(--teal);outline-offset:2px;border-radius:6px;}
.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
.wrap-narrow{max-width:1080px;}
.sec{padding:var(--gap-sec) 0;}
.sec-alt{background:#fff;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--brand-1);text-transform:uppercase;
}
.eyebrow::before{content:"";width:12px;height:3px;border-radius:999px;background:var(--brand-grad);}
.sec-head{margin-bottom:40px;}
.sec-head .num{
  font-size:13px;font-weight:800;color:var(--t3);
  letter-spacing:.16em;display:block;margin-bottom:10px;
  font-variant-numeric:tabular-nums;
}
.sec-head h2{
  font-size:32px;line-height:40px;font-weight:700;letter-spacing:-.3px;
  margin:0 0 12px;
}
.sec-head p{color:var(--t2);margin:0;max-width:760px;font-size:16px;}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(251,247,244,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background .24s ease-out,box-shadow .24s ease-out,border-color .24s ease-out;
}
.site-header.scrolled{
  background:rgba(255,255,255,.88);
  border-bottom-color:var(--line);
  box-shadow:var(--shadow-1);
}
.nav-inner{
  height:68px;display:flex;align-items:center;gap:28px;
}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:30px;height:30px;border-radius:10px;background:var(--brand-grad);
  box-shadow:0 6px 16px rgba(255,90,60,.32);
  position:relative;flex-shrink:0;
}
.logo-mark::after{
  content:"";position:absolute;inset:9px;border-radius:4px;
  background:rgba(255,255,255,.92);
}
.logo-text{font-size:17px;font-weight:800;letter-spacing:-.2px;color:var(--t1);white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:8px;flex:1;}
.nav-links a{
  position:relative;font-size:15px;font-weight:600;color:var(--t2);
  padding:6px 0;white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:3px;
  border-radius:999px;background:var(--brand-grad);
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease-out;
}
.nav-links a:hover,.nav-links a.active{color:var(--t1);}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1);}
.nav-tools{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.cmd-search{
  display:flex;align-items:center;gap:8px;
  width:240px;height:40px;padding:0 10px 0 14px;
  background:#F4EFEB;border:1px solid transparent;border-radius:var(--r-in);
  transition:background .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.cmd-search:hover{background:#fff;border-color:var(--stroke);box-shadow:var(--shadow-1);}
.cmd-search i{color:var(--t3);font-size:13px;}
.cmd-search input{
  flex:1;border:0;background:transparent;font-size:13px;color:var(--t1);outline:none;min-width:0;
}
.cmd-search input::placeholder{color:var(--t3);}
.kbd-pill{
  font-size:12px;color:var(--t3);background:#fff;border:1px solid var(--stroke);
  border-radius:999px;padding:1px 8px;line-height:1.6;white-space:nowrap;
}
.icon-btn{
  width:40px;height:40px;border-radius:999px;border:1px solid var(--stroke);
  background:#fff;color:var(--t2);display:inline-flex;align-items:center;justify-content:center;
  transition:all .2s ease-out;flex-shrink:0;
}
.icon-btn:hover{color:var(--brand-1);border-color:var(--brand-1);transform:translateY(-2px);box-shadow:var(--shadow-1);}
.btn-grad{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--brand-grad);color:#fff;font-weight:700;font-size:15px;
  height:48px;padding:0 26px;border:0;border-radius:var(--r-btn);
  box-shadow:var(--shadow-3);transition:transform .2s ease-out,box-shadow .2s ease-out,filter .2s ease-out;
}
.btn-grad:hover{color:#fff;transform:translateY(-2px);filter:brightness(1.04);box-shadow:0 20px 44px rgba(255,46,147,.32);}
.btn-grad:active{transform:translateY(1px);}
.btn-grad-sm{height:40px;padding:0 20px;font-size:14px;}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;font-weight:700;font-size:15px;
  background:#fff;color:var(--t1);border:1px solid var(--stroke);border-radius:var(--r-btn);
  transition:all .2s ease-out;
}
.btn-ghost:hover{border-color:var(--brand-1);color:var(--brand-1);transform:translateY(-2px);box-shadow:var(--shadow-1);}
.btn-ghost-dark{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;font-weight:700;font-size:15px;
  background:transparent;color:#fff;border:1px solid rgba(255,255,255,.42);border-radius:var(--r-btn);
  transition:all .2s ease-out;
}
.btn-ghost-dark:hover{color:#fff;border-color:#fff;background:rgba(255,255,255,.08);transform:translateY(-2px);}
.btn-white{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;font-weight:800;font-size:15px;
  background:#fff;color:var(--ink);border:0;border-radius:var(--r-btn);
  box-shadow:0 14px 32px rgba(20,18,26,.18);transition:transform .2s ease-out;
}
.btn-white:hover{color:var(--ink);transform:translateY(-2px);}
.burger{
  display:none;width:40px;height:40px;border-radius:var(--r-in);
  border:1px solid var(--stroke);background:#fff;color:var(--t1);
  align-items:center;justify-content:center;
}
.offcanvas{background:var(--paper);}
.offcanvas-header{border-bottom:1px solid var(--line);}
.drawer-list{list-style:none;padding:8px 0;margin:0;}
.drawer-list li{border-bottom:1px solid var(--line);}
.drawer-list a{
  display:flex;align-items:center;justify-content:space-between;
  height:48px;font-size:15px;font-weight:600;color:var(--t1);
}
.drawer-list a i{color:var(--t3);font-size:13px;}

/* ---------- Hero ---------- */
.hero{
  position:relative;color:#fff;overflow:hidden;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.hero::before{
  content:"";position:absolute;inset:0;background:rgba(20,18,26,.88);
}
.hero::after{
  content:"";position:absolute;right:-10%;bottom:-30%;width:900px;height:900px;
  background:radial-gradient(circle at center,rgba(255,90,60,.55) 0%,rgba(255,46,147,.32) 42%,rgba(255,46,147,0) 70%);
  opacity:.85;pointer-events:none;
}
.hero-inner{position:relative;z-index:2;padding:104px 0 80px;}
.hero h1{
  font-size:44px;line-height:52px;font-weight:800;letter-spacing:-.5px;
  margin:16px 0 18px;color:#fff;
}
.hero h1 .hl{
  background:var(--brand-grad);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:19px;font-weight:600;color:#fff;margin:0 0 12px;}
.hero-note{font-size:14px;color:#C9C4CF;margin:0 0 30px;max-width:520px;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.22);
  font-size:13px;font-weight:600;color:#fff;
}
.dot-live{width:7px;height:7px;border-radius:999px;background:var(--teal);box-shadow:0 0 0 4px rgba(22,199,168,.22);}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:44px;}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;
  padding-top:28px;border-top:1px solid rgba(255,255,255,.16);
}
.stat-badge{
  display:flex;align-items:center;gap:10px;
  padding:12px 14px;border-radius:999px;
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.20);
}
.stat-badge .dot{width:7px;height:7px;border-radius:999px;background:var(--teal);flex-shrink:0;}
.stat-badge .num{font-size:15px;font-weight:800;font-variant-numeric:tabular-nums;white-space:nowrap;}
.stat-badge .txt{font-size:12px;color:#C9C4CF;white-space:nowrap;}
.hero-visual{position:relative;}
.hero-card{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.18);
  border-radius:var(--r-lg);padding:14px;
  backdrop-filter:blur(6px);
}
.hero-card img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-md);
}
.hero-float{
  position:absolute;left:-18px;bottom:34px;
  background:#fff;color:var(--t1);border-radius:var(--r-md);
  padding:14px 18px;box-shadow:var(--shadow-2);
  display:flex;align-items:center;gap:14px;
}
.hero-float .num{font-size:24px;font-weight:800;font-variant-numeric:tabular-nums;
  background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1.2;}
.hero-float .txt{font-size:12px;color:var(--t2);line-height:1.5;}
.scroll-hint{
  display:inline-flex;align-items:center;gap:8px;margin-top:28px;
  font-size:13px;color:#C9C4CF;
}
.scroll-hint i{animation:bob 1.8s ease-in-out infinite;}
@keyframes bob{0%,100%{transform:translateY(0);}50%{transform:translateY(4px);}}

/* ---------- 卡片通用 ---------- */
.card-soft{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);box-shadow:var(--shadow-1);
  transition:transform .22s ease-out,box-shadow .22s ease-out;
  position:relative;overflow:hidden;height:100%;
}
.card-soft:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.top-bar::before{
  content:"";position:absolute;left:0;right:0;top:0;height:4px;background:var(--brand-grad);
}
.pad{padding:28px;}
.pad-sm{padding:24px;}

/* ---------- 卖点 ---------- */
.feature-main img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-md) var(--r-md) 0 0;}
.check-list{list-style:none;padding:0;margin:18px 0 0;}
.check-list li{
  position:relative;padding-left:26px;margin-bottom:10px;
  color:var(--t2);font-size:15px;
}
.check-list li::before{
  content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;left:0;top:2px;font-size:12px;color:var(--teal);
}
.mini-icon{
  width:46px;height:46px;border-radius:14px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-grad-soft);color:var(--brand-1);font-size:18px;
  margin-bottom:16px;
}
.mini-icon.teal{background:rgba(22,199,168,.12);color:#0E9E86;}
.strip{
  display:flex;align-items:center;gap:18px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:20px 24px;box-shadow:var(--shadow-1);
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.strip:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.strip .txt{flex:1;}
.strip h3{font-size:17px;font-weight:700;margin:0 0 4px;}
.strip p{margin:0;font-size:14px;color:var(--t2);}
.strip .link{font-size:14px;font-weight:700;color:var(--brand-1);white-space:nowrap;}

/* ---------- 演示 ---------- */
.step-tabs{display:flex;flex-direction:column;gap:12px;}
.step-item{
  display:flex;gap:14px;padding:18px 20px;border-radius:var(--r-md);
  background:#fff;border:1px solid var(--line);cursor:pointer;
  position:relative;transition:all .2s ease-out;text-align:left;width:100%;
}
.step-item::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:4px;border-radius:999px;
  background:var(--brand-grad);opacity:0;transition:opacity .2s ease-out;
}
.step-item.active{border-color:transparent;box-shadow:var(--shadow-2);}
.step-item.active::before{opacity:1;}
.step-num{
  width:30px;height:30px;border-radius:999px;flex-shrink:0;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:800;font-variant-numeric:tabular-nums;
  background:#F4EFEB;color:var(--t2);
}
.step-item.active .step-num{background:var(--brand-grad);color:#fff;}
.step-item h3{font-size:16px;font-weight:700;margin:0 0 4px;}
.step-item p{margin:0;font-size:14px;color:var(--t2);}
.device-frame{
  position:relative;border-radius:var(--r-md);overflow:hidden;
  border:1px solid rgba(255,255,255,.18);box-shadow:var(--shadow-2);
  background:var(--ink);
}
.device-frame img{width:100%;aspect-ratio:16/10;object-fit:cover;opacity:.96;}
.device-float{
  position:absolute;right:18px;bottom:18px;background:#fff;border-radius:var(--r-md);
  padding:12px 16px;box-shadow:var(--shadow-2);display:flex;align-items:center;gap:12px;
}
.device-float .num{font-size:20px;font-weight:800;color:var(--brand-1);font-variant-numeric:tabular-nums;}
.device-float .txt{font-size:12px;color:var(--t2);line-height:1.4;}
.demo-dark{background:var(--ink);color:#fff;border-radius:32px;padding:56px 40px;}
.demo-dark .sec-head h2{color:#fff;}
.demo-dark .sec-head p{color:#C9C4CF;}

/* ---------- 证据 ---------- */
.proof-stats{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.proof-stat{padding:32px 20px;border-right:1px solid var(--line);}
.proof-stat:last-child{border-right:0;}
.proof-stat .num{
  font-size:28px;line-height:34px;font-weight:800;font-variant-numeric:tabular-nums;
  background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.proof-stat .num.teal{background:none;-webkit-text-fill-color:var(--teal);color:var(--teal);}
.proof-stat .lbl{font-size:13px;color:var(--t2);margin-top:6px;}
.quote-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px;box-shadow:var(--shadow-1);height:100%;
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.quote-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.quote-head{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.avatar{
  width:40px;height:40px;border-radius:999px;background:var(--brand-grad);
  color:#fff;font-weight:800;font-size:14px;
  display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;
}
.avatar.b{background:linear-gradient(135deg,#16C7A8 0%,#0E9E86 100%);}
.avatar.c{background:linear-gradient(135deg,#FFC53D 0%,#FF9A3C 100%);}
.avatar.d{background:linear-gradient(135deg,#8B7CF6 0%,#5B4BDB 100%);}
.quote-name{font-size:14px;font-weight:700;line-height:1.4;}
.stars{color:var(--amber);font-size:12px;letter-spacing:2px;}
.quote-card p{margin:0;font-size:14px;color:var(--t2);line-height:1.8;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;}
.tag-soft{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border-radius:999px;background:#F4EFEB;
  font-size:13px;color:var(--t2);border:1px solid transparent;
  transition:all .2s ease-out;
}
.tag-soft:hover{background:#fff;border-color:var(--stroke);color:var(--t1);}

/* ---------- 方案 ---------- */
.plan-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:30px 26px;box-shadow:var(--shadow-1);height:100%;
  display:flex;flex-direction:column;position:relative;
  transition:transform .22s ease-out,box-shadow .22s ease-out;
}
.plan-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.plan-card.featured{
  border:2px solid transparent;
  background-image:linear-gradient(#fff,#fff),var(--brand-grad);
  background-origin:border-box;background-clip:padding-box,border-box;
  box-shadow:var(--shadow-3);transform:translateY(-8px);
}
.plan-card.featured:hover{transform:translateY(-12px);}
.plan-tag{
  position:absolute;top:-13px;right:24px;
  background:var(--brand-grad);color:#fff;font-size:12px;font-weight:800;
  padding:4px 14px;border-radius:999px;
}
.plan-card h3{font-size:20px;font-weight:800;margin:0 0 6px;}
.plan-card .plan-desc{font-size:14px;color:var(--t2);margin:0 0 18px;min-height:44px;}
.plan-card .price{font-size:15px;color:var(--t2);font-weight:600;margin-bottom:18px;}
.plan-card .price b{font-size:28px;color:var(--t1);font-weight:800;font-variant-numeric:tabular-nums;}
.plan-card .check-list{margin-bottom:24px;flex:1;}
.plan-note{font-size:13px;color:var(--t3);margin-top:18px;}
.acc .accordion-item{
  border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
  margin-bottom:12px;background:#fff;box-shadow:var(--shadow-1);
}
.acc .accordion-button{
  background:#fff;font-weight:700;font-size:16px;color:var(--t1);
  padding:20px 24px;box-shadow:none;
}
.acc .accordion-button:not(.collapsed){color:var(--t1);background:#fff;}
.acc .accordion-button:focus{box-shadow:none;border-color:transparent;}
.acc .accordion-button::after{
  background-image:none;content:"\2b";font-family:"Font Awesome 6 Free";font-weight:900;
  width:26px;height:26px;display:inline-flex;align-items:center;justify-content:center;
  color:var(--brand-1);font-size:13px;transition:transform .22s ease-out;
  background:var(--brand-grad-soft);border-radius:999px;
}
.acc .accordion-button:not(.collapsed)::after{transform:rotate(45deg);}
.acc .accordion-body{padding:0 24px 22px;color:var(--t2);font-size:15px;position:relative;}
.acc .accordion-item:has(.accordion-button:not(.collapsed)){position:relative;}
.acc .accordion-item:has(.accordion-button:not(.collapsed))::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:4px;border-radius:999px;
  background:var(--brand-grad);
}

/* ---------- 资讯 ---------- */
.news-card{
  display:flex;flex-direction:column;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--shadow-1);height:100%;
  transition:transform .22s ease-out,box-shadow .22s ease-out;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);color:inherit;}
.news-cover{position:relative;overflow:hidden;}
.news-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s ease-out;}
.news-card:hover .news-cover img{transform:scale(1.03);}
.news-cat{
  position:absolute;left:14px;top:14px;
  background:var(--brand-grad);color:#fff;font-size:12px;font-weight:700;
  padding:4px 12px;border-radius:999px;box-shadow:0 6px 16px rgba(20,18,26,.18);
}
.news-body{padding:20px 22px 18px;display:flex;flex-direction:column;flex:1;}
.news-title{
  font-size:18px;font-weight:700;line-height:1.5;margin:0 0 8px;color:var(--t1);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .2s ease-out;
}
.news-card:hover .news-title{color:var(--brand-1);}
.news-desc{
  font-size:14px;color:var(--t2);margin:0 0 16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  min-height:44px;
}
.news-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--t3);padding-top:14px;border-top:1px solid var(--line);
}
.news-more{color:var(--brand-1);font-weight:700;display:inline-flex;align-items:center;gap:6px;}
.empty-state{
  text-align:center;padding:56px 24px;background:#fff;
  border:1px dashed var(--stroke);border-radius:var(--r-lg);
}
.empty-state i{font-size:26px;color:var(--t3);margin-bottom:12px;display:block;}
.empty-state p{margin:0 0 16px;color:var(--t2);}
.link-arrow{font-size:14px;font-weight:700;color:var(--brand-1);display:inline-flex;align-items:center;gap:8px;}
.link-arrow:hover{gap:12px;}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--brand-grad);border-radius:32px;color:#fff;
  padding:48px 44px;display:flex;align-items:center;justify-content:space-between;
  gap:32px;flex-wrap:wrap;box-shadow:var(--shadow-3);
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;
  border-radius:999px;background:rgba(255,255,255,.12);
}
.cta-band h2{font-size:28px;line-height:1.4;font-weight:800;margin:0 0 8px;position:relative;z-index:2;}
.cta-band p{margin:0;font-size:14px;color:rgba(255,255,255,.9);position:relative;z-index:2;}
.cta-band .btn-white{position:relative;z-index:2;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#C9C4CF;padding:72px 0 28px;margin-top:96px;border-top:1px solid rgba(255,255,255,.08);}
.site-footer h4{font-size:15px;font-weight:700;color:#fff;margin:0 0 18px;}
.footer-brand p{font-size:14px;line-height:1.8;color:#C9C4CF;margin:14px 0 18px;max-width:340px;}
.footer-list{list-style:none;padding:0;margin:0;}
.footer-list li{margin-bottom:10px;}
.footer-list a{font-size:14px;color:#C9C4CF;}
.footer-list a:hover{background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.footer-sub{display:flex;gap:10px;margin-top:6px;}
.footer-sub input{
  flex:1;height:48px;border-radius:var(--r-in);border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.06);color:#fff;padding:0 16px;font-size:14px;outline:none;
  transition:all .2s ease-out;min-width:0;
}
.footer-sub input::placeholder{color:#8B8590;}
.footer-sub input:focus{background:rgba(255,255,255,.1);border-color:var(--brand-1);box-shadow:0 0 0 4px rgba(255,90,60,.18);}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.10);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;color:#8B8590;
}
.footer-bottom a{color:#8B8590;}
.footer-bottom a:hover{color:#fff;}
.footer-logo{display:flex;align-items:center;gap:10px;}
.footer-logo .logo-text{color:#fff;}

/* ---------- 浮动 CTA ---------- */
.float-stack{
  position:fixed;right:24px;bottom:96px;z-index:1040;
  display:flex;flex-direction:column;gap:12px;align-items:flex-end;
}
.float-main{
  position:relative;width:56px;height:56px;border-radius:999px;
  background:var(--brand-grad);color:#fff;border:0;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:19px;box-shadow:var(--shadow-3);transition:width .24s ease-out;
  overflow:hidden;white-space:nowrap;
}
.float-main span{
  max-width:0;opacity:0;font-size:14px;font-weight:700;
  transition:max-width .24s ease-out,opacity .2s ease-out,margin .24s ease-out;
}
.float-main:hover{width:140px;color:#fff;}
.float-main:hover span{max-width:90px;opacity:1;margin-left:8px;}
.float-top{
  width:48px;height:48px;border-radius:999px;background:#fff;color:var(--t1);
  border:1px solid var(--stroke);display:inline-flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-1);transition:all .2s ease-out;font-size:15px;
}
.float-top:hover{color:var(--brand-1);border-color:var(--brand-1);transform:translateY(-2px);}
.mobile-cta{
  display:none;position:fixed;left:12px;right:12px;bottom:12px;z-index:1040;
  height:56px;border-radius:var(--r-btn);background:var(--brand-grad);color:#fff;
  align-items:center;justify-content:center;gap:8px;font-weight:800;font-size:15px;
  box-shadow:var(--shadow-3);opacity:0;pointer-events:none;transition:opacity .24s ease-out;
}
.mobile-cta.show{opacity:1;pointer-events:auto;}

/* ---------- 响应式 ---------- */
@media (max-width:1399.98px){
  .wrap{max-width:1140px;}
}
@media (max-width:1199.98px){
  :root{--gap-sec:80px;}
  .hero h1{font-size:38px;line-height:46px;}
  .cmd-search{width:190px;}
  .nav-links{gap:20px;}
}
@media (max-width:991.98px){
  :root{--gap-sec:72px;}
  .nav-links{display:none;}
  .burger{display:inline-flex;}
  .cmd-search{display:none;}
  .hero-inner{padding:72px 0 60px;}
  .hero h1{font-size:34px;line-height:42px;}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));}
  .proof-stats{grid-template-columns:repeat(2,minmax(0,1fr));}
  .proof-stat:nth-child(2){border-right:0;}
  .proof-stat:nth-child(1),.proof-stat:nth-child(2){border-bottom:1px solid var(--line);}
  .demo-dark{padding:40px 26px;border-radius:24px;}
  .float-stack{bottom:88px;right:16px;}
  .sec-head h2{font-size:28px;line-height:36px;}
}
@media (max-width:767.98px){
  :root{--gap-sec:48px;}
  body{font-size:16px;}
  .wrap{padding:0 16px;}
  .hero h1{font-size:32px;line-height:40px;}
  .hero-sub{font-size:17px;}
  .hero-cta .btn-grad,.hero-cta .btn-ghost-dark{width:100%;}
  .hero-float{left:8px;bottom:12px;padding:10px 14px;}
  .hero-float .num{font-size:20px;}
  .sec-head h2{font-size:24px;line-height:32px;}
  .cta-band{padding:32px 22px;border-radius:24px;}
  .cta-band h2{font-size:22px;}
  .cta-band .btn-white{width:100%;}
  .float-stack{display:none;}
  .mobile-cta{display:flex;}
  .site-footer{padding-bottom:96px;margin-top:64px;}
  .pad{padding:22px;}
  .proof-stat{padding:24px 16px;}
}
@media (max-width:400px){
  .hero-stats{grid-template-columns:1fr;}
  .proof-stats{grid-template-columns:1fr;}
  .proof-stat{border-right:0;}
  .proof-stat:nth-child(3){border-bottom:1px solid var(--line);}
  .btn-grad,.btn-ghost,.btn-ghost-dark,.btn-white{width:100%;}
  .hero-cta{gap:10px;}
}

/* roulang page: category1 */
:root{
  --brand-1:#FF5A3C;
  --brand-2:#FF2E93;
  --grad:linear-gradient(135deg,#FF5A3C 0%,#FF2E93 100%);
  --grad-soft:linear-gradient(135deg,rgba(255,90,60,.12) 0%,rgba(255,46,147,.12) 100%);
  --mint:#16C7A8;
  --amber:#FFC53D;
  --ink:#14121A;
  --bg:#FBF7F4;
  --surface:#FFFFFF;
  --text:#1B1820;
  --text-2:#5C5663;
  --text-3:#8B8590;
  --line:#EDE8E4;
  --stroke:#E4DDD8;
  --r-lg:24px;
  --r-md:16px;
  --r-btn:14px;
  --r-input:12px;
  --r-pill:999px;
  --sh1:0 2px 8px rgba(20,18,26,.06);
  --sh2:0 12px 32px rgba(20,18,26,.10);
  --sh3:0 16px 40px rgba(255,90,60,.28);
  --sec-pad:96px;
  --bs-primary:#FF5A3C;
  --bs-link-color:#1B1820;
  --bs-link-hover-color:#FF5A3C;
  --bs-body-font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --bs-body-color:#1B1820;
  --bs-border-radius:16px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--bs-body-font-family);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease-out,background-color .2s ease-out,border-color .2s ease-out;}
a:hover{color:var(--brand-1);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.2px;}
p{margin:0;}
button,input{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--mint);outline-offset:2px;}

.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(251,247,244,.92);
  border-bottom:1px solid transparent;
  transition:background-color .24s ease-out,box-shadow .24s ease-out,border-color .24s ease-out;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  box-shadow:var(--sh1);
}
.nav-inner{
  display:flex;
  align-items:center;
  gap:28px;
  height:68px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:26px;height:26px;border-radius:9px;
  background:var(--grad);
  position:relative;
  box-shadow:0 6px 16px rgba(255,90,60,.32);
}
.logo-mark::after{
  content:"";
  position:absolute;inset:8px;
  border-radius:3px;
  background:#fff;
}
.logo-text{font-size:17px;font-weight:800;letter-spacing:-.3px;color:var(--text);white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:8px;}
.nav-links a{
  position:relative;
  font-size:15px;
  font-weight:600;
  color:var(--text-2);
  padding:6px 0;
  white-space:nowrap;
}
.nav-links a::after{
  content:"";
  position:absolute;left:0;right:0;bottom:-2px;
  height:3px;border-radius:3px;
  background:var(--grad);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .22s ease-out;
}
.nav-links a:hover{color:var(--text);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{
  background:var(--grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  -webkit-text-fill-color:transparent;
}
.nav-links a.active::after{transform:scaleX(1);}
.nav-right{display:flex;align-items:center;gap:12px;margin-left:auto;}
.command-search{
  position:relative;
  display:flex;align-items:center;
  width:240px;height:40px;
  background:#F4EFEB;
  border:1px solid transparent;
  border-radius:var(--r-input);
  padding:0 10px 0 34px;
  transition:background-color .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.command-search:hover{background:#fff;border-color:var(--stroke);box-shadow:var(--sh1);}
.command-search svg{position:absolute;left:11px;top:50%;transform:translateY(-50%);opacity:.5;}
.command-search input{
  border:0;background:transparent;outline:none;
  width:100%;font-size:13px;color:var(--text);
}
.command-search input::placeholder{color:var(--text-3);}
.kbd{
  flex:0 0 auto;
  font-size:11px;line-height:1;
  padding:5px 7px;border-radius:7px;
  background:#fff;border:1px solid var(--stroke);
  color:var(--text-3);
  white-space:nowrap;
}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--stroke);
  display:flex;align-items:center;justify-content:center;
  color:var(--text-2);cursor:pointer;
  transition:border-color .2s ease-out,color .2s ease-out,box-shadow .2s ease-out,transform .2s ease-out;
}
.icon-btn:hover{border-color:var(--brand-1);color:var(--brand-1);box-shadow:var(--sh1);transform:translateY(-2px);}
.btn-grad{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 20px;
  border:0;border-radius:var(--r-btn);
  background:var(--grad);
  color:#fff;font-weight:700;font-size:15px;
  box-shadow:var(--sh3);
  cursor:pointer;
  transition:transform .2s ease-out,box-shadow .2s ease-out,filter .2s ease-out;
}
.btn-grad:hover{color:#fff;transform:translateY(-2px);filter:brightness(1.04);}
.btn-grad:active{transform:translateY(0);box-shadow:0 8px 20px rgba(255,90,60,.24);}
.btn-grad-sm{height:42px;padding:0 18px;font-size:14px;}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 18px;
  border:1px solid var(--stroke);border-radius:var(--r-btn);
  background:#fff;color:var(--text);font-weight:600;font-size:15px;
  transition:border-color .2s ease-out,color .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out;
}
.btn-ghost:hover{border-color:var(--brand-1);color:var(--brand-1);transform:translateY(-2px);box-shadow:var(--sh1);}
.btn-ghost-light{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--r-btn);
  border:1px solid rgba(255,255,255,.42);background:rgba(255,255,255,.06);
  color:#fff;font-weight:600;font-size:15px;
  transition:background-color .2s ease-out,transform .2s ease-out;
}
.btn-ghost-light:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-2px);}
.nav-toggle{
  display:none;
  width:40px;height:40px;border-radius:var(--r-input);
  border:1px solid var(--stroke);background:#fff;
  align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle span{display:block;width:16px;height:2px;border-radius:2px;background:var(--text);position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:16px;height:2px;border-radius:2px;background:var(--text);
}
.nav-toggle span::before{top:-5px;}
.nav-toggle span::after{top:5px;}

.mobile-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:#fff;
  padding:8px 0 16px;
  box-shadow:var(--sh2);
}
.mobile-drawer.open{display:block;}
.mobile-drawer a{
  display:flex;align-items:center;justify-content:space-between;
  height:48px;padding:0 24px;
  font-size:15px;font-weight:600;color:var(--text-2);
  border-bottom:1px solid var(--line);
}
.mobile-drawer a:last-child{border-bottom:0;}
.mobile-drawer a.active{color:var(--brand-1);}
.mobile-drawer a::after{content:"›";font-size:19px;color:var(--text-3);}
.mobile-search{
  margin:12px 24px 4px;
  display:flex;align-items:center;gap:8px;
  height:44px;border-radius:var(--r-input);
  background:#F4EFEB;padding:0 14px;
}
.mobile-search input{border:0;background:transparent;outline:none;width:100%;font-size:14px;}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;
  margin-top:-68px;
  padding:150px 0 72px;
  background-image:
    linear-gradient(180deg,rgba(20,18,26,.94) 0%,rgba(20,18,26,.86) 46%,rgba(20,18,26,.94) 100%),
    url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  color:#fff;
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;
  width:720px;height:720px;
  right:-180px;bottom:-360px;
  background:radial-gradient(circle at 50% 50%,rgba(255,90,60,.42),rgba(255,46,147,.18) 55%,transparent 72%);
  pointer-events:none;
}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:#C9C4CF;margin-bottom:22px;flex-wrap:wrap;}
.crumb a{color:#C9C4CF;}
.crumb a:hover{color:#fff;}
.crumb span.sep{opacity:.5;}
.crumb b{color:#fff;font-weight:600;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.28);
  background:rgba(255,255,255,.08);
  font-size:13px;color:#fff;margin-bottom:20px;
}
.eyebrow i{width:8px;height:8px;border-radius:50%;background:var(--mint);display:block;box-shadow:0 0 0 4px rgba(22,199,168,.18);}
.page-hero h1{
  font-size:44px;line-height:1.2;font-weight:800;letter-spacing:-.5px;
  margin-bottom:18px;
}
.page-hero h1 em{
  font-style:normal;
  background:linear-gradient(135deg,#FF8A5C 0%,#FF5A9E 100%);
  -webkit-background-clip:text;background-clip:text;
  color:transparent;-webkit-text-fill-color:transparent;
}
.hero-lead{font-size:17px;color:#C9C4CF;max-width:560px;margin-bottom:20px;}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:28px;}
.hero-facts{display:flex;flex-wrap:wrap;gap:12px;}
.fact-pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 16px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.2);
  font-size:13px;color:#EDE8F0;
}
.fact-pill b{font-size:16px;font-weight:800;color:#fff;}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-lg);
  border:1px solid rgba(255,255,255,.16);
  box-shadow:0 24px 60px rgba(0,0,0,.36);
}
.float-card{
  position:absolute;left:-18px;bottom:-24px;
  background:#fff;color:var(--text);
  border-radius:var(--r-md);
  padding:14px 18px;
  box-shadow:var(--sh2);
  display:flex;align-items:center;gap:12px;
  min-width:210px;
}
.float-card .dot{width:10px;height:10px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 4px rgba(22,199,168,.16);}
.float-card b{display:block;font-size:13px;}
.float-card small{font-size:12px;color:var(--text-3);}

/* ---------- sections ---------- */
.section{padding:var(--sec-pad) 0;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap;}
.sec-head .kicker{
  display:flex;align-items:center;gap:10px;
  font-size:12px;font-weight:700;letter-spacing:1.2px;color:var(--text-3);
  margin-bottom:10px;text-transform:uppercase;
}
.sec-head .kicker::before{content:"";width:26px;height:4px;border-radius:3px;background:var(--grad);}
.sec-head h2{font-size:32px;line-height:1.3;}
.sec-head p{color:var(--text-2);font-size:15px;margin-top:8px;max-width:620px;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-weight:700;font-size:15px;color:var(--brand-1);}
.text-link:hover{gap:10px;color:var(--brand-2);}

.kb-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:28px;
  box-shadow:var(--sh1);
  transition:transform .22s ease-out,box-shadow .22s ease-out;
  margin-bottom:24px;
  position:relative;
}
.kb-card:hover{transform:translateY(-4px);box-shadow:var(--sh2);}
.kb-card h2{font-size:22px;line-height:1.35;margin-bottom:14px;padding-left:14px;position:relative;}
.kb-card h2::before{
  content:"";position:absolute;left:0;top:5px;bottom:5px;width:4px;border-radius:3px;background:var(--grad);
}
.kb-card p{color:var(--text-2);font-size:16px;margin-bottom:14px;}
.kb-card p:last-child{margin-bottom:0;}
.check-list{margin-top:16px;display:grid;gap:12px;}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;color:var(--text-2);}
.check-list li::before{
  content:"";
  flex:0 0 auto;
  width:20px;height:20px;margin-top:4px;
  border-radius:50%;
  background:
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2316C7A8' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'><polyline points='20 6 9 17 4 12'/></svg>") center/14px no-repeat,
    rgba(22,199,168,.12);
}
.kb-card figure{margin:0 0 18px;}
.kb-card figure img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-md);}
.kb-card figcaption{font-size:13px;color:var(--text-3);margin-top:10px;}

/* steps */
.steps{display:grid;gap:14px;margin-top:6px;}
.step{
  display:flex;gap:16px;
  background:#FAF6F3;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:18px 20px;
  transition:background-color .2s ease-out,border-color .2s ease-out,transform .2s ease-out;
}
.step:hover{background:#fff;border-color:var(--stroke);transform:translateX(4px);}
.step .idx{
  flex:0 0 auto;
  width:38px;height:38px;border-radius:12px;
  background:var(--grad);
  color:#fff;font-weight:800;font-size:15px;
  display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.step h3{font-size:16.5px;margin-bottom:6px;}
.step p{font-size:15px;color:var(--text-2);}

/* narrow strip */
.strip{
  display:flex;align-items:center;gap:16px;
  padding:18px 22px;border-radius:var(--r-md);
  background:var(--grad-soft);
  border:1px solid var(--line);
}
.strip .strip-ico{
  flex:0 0 auto;width:42px;height:42px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--stroke);
  display:flex;align-items:center;justify-content:center;
  color:var(--brand-1);font-weight:800;
}
.strip p{font-size:15px;color:var(--text-2);}
.strip a{margin-left:auto;font-weight:700;color:var(--brand-1);white-space:nowrap;display:inline-flex;gap:6px;align-items:center;}
.strip a:hover{color:var(--brand-2);}

/* sidebar */
.side-sticky{position:sticky;top:92px;display:grid;gap:18px;}
.side-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:22px;
  box-shadow:var(--sh1);
}
.side-card h3{font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-card h3::before{content:"";width:4px;height:16px;border-radius:3px;background:var(--grad);}
.side-list{display:grid;gap:4px;}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;
  padding:10px 12px;border-radius:12px;
  font-size:14.5px;color:var(--text-2);
  border-left:3px solid transparent;
}
.side-list a:hover{background:#FAF6F3;color:var(--brand-1);border-left-color:var(--brand-1);}
.side-cta{
  background:linear-gradient(150deg,#1D1A24 0%,#14121A 100%);
  border:1px solid rgba(255,255,255,.1);
  color:#fff;
}
.side-cta h3{color:#fff;}
.side-cta h3::before{background:var(--grad);}
.side-cta p{font-size:14px;color:#C9C4CF;margin-bottom:16px;}
.side-cta .btn-grad{width:100%;height:46px;}
.tags{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-flex;align-items:center;
  padding:6px 12px;border-radius:var(--r-pill);
  background:#F4EFEB;border:1px solid var(--line);
  font-size:12.5px;color:var(--text-2);
}
.tag.mint{background:rgba(22,199,168,.1);border-color:rgba(22,199,168,.3);color:#0F9B84;}

/* faq */
.faq-section{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.faq-list{display:grid;gap:12px;max-width:920px;}
.faq-item{
  border:1px solid var(--line);
  border-radius:var(--r-md);
  background:#FBF7F4;
  overflow:hidden;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.faq-item:hover{border-color:var(--stroke);box-shadow:var(--sh1);}
.faq-item .faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;
  background:transparent;border:0;text-align:left;
  font-size:16.5px;font-weight:700;color:var(--text);cursor:pointer;
}
.faq-item .faq-q .plus{
  flex:0 0 auto;width:30px;height:30px;border-radius:10px;
  border:1px solid var(--stroke);background:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:17px;color:var(--brand-1);font-weight:700;
  transition:transform .22s ease-out,background-color .22s ease-out,color .22s ease-out;
}
.faq-item .faq-q[aria-expanded="true"] .plus{transform:rotate(45deg);background:var(--grad);color:#fff;border-color:transparent;}
.faq-item .faq-a{padding:0 22px 22px;font-size:15.5px;color:var(--text-2);}
.faq-item.active{background:#fff;border-color:var(--stroke);border-left:4px solid var(--brand-1);}

/* cta band */
.cta-band{
  background:var(--grad);
  color:#fff;
  padding:56px 0;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-inner h2{font-size:30px;line-height:1.3;margin-bottom:10px;}
.cta-inner p{font-size:15px;color:rgba(255,255,255,.88);max-width:640px;}
.btn-white{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  background:#fff;color:#1B1820;font-weight:800;font-size:15px;
  box-shadow:0 14px 30px rgba(20,18,26,.2);
  transition:transform .2s ease-out;
}
.btn-white:hover{color:#1B1820;transform:translateY(-2px);}

/* footer */
.site-footer{
  background:var(--ink);
  color:#C9C4CF;
  padding:72px 0 28px;
  border-top:1px solid rgba(255,255,255,.08);
  margin-top:0;
}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-logo .logo-text{color:#fff;font-size:17px;font-weight:800;}
.footer-brand p{font-size:14px;color:#C9C4CF;max-width:380px;margin-bottom:18px;}
.footer-list{display:grid;gap:10px;}
.footer-list a{font-size:14px;color:#C9C4CF;}
.footer-list a:hover{
  background:linear-gradient(135deg,#FF8A5C 0%,#FF5A9E 100%);
  -webkit-background-clip:text;background-clip:text;
  color:transparent;-webkit-text-fill-color:transparent;
}
.footer-sub{display:flex;gap:10px;flex-wrap:wrap;}
.footer-sub input{
  flex:1 1 180px;
  height:42px;padding:0 14px;
  border-radius:var(--r-input);
  border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.06);
  color:#fff;font-size:14px;outline:none;
}
.footer-sub input::placeholder{color:#8B8590;}
.footer-sub input:focus{border-color:var(--brand-1);background:rgba(255,255,255,.1);}
.footer-bottom{
  margin-top:48px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:12px;color:#8B8590;
}

/* back to top */
.to-top{
  position:fixed;right:24px;bottom:32px;z-index:1020;
  width:46px;height:46px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--stroke);
  display:flex;align-items:center;justify-content:center;
  color:var(--text-2);box-shadow:var(--sh2);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .24s ease-out,transform .24s ease-out,visibility .24s ease-out,color .2s ease-out,border-color .2s ease-out;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{color:var(--brand-1);border-color:var(--brand-1);}

/* responsive */
@media (max-width:1399px){
  .wrap{max-width:1140px;}
}
@media (max-width:1199px){
  .command-search{width:200px;}
  .nav-links{gap:20px;}
  .page-hero h1{font-size:38px;}
}
@media (max-width:991px){
  :root{--sec-pad:72px;}
  .nav-links{display:none;}
  .command-search{display:none;}
  .nav-toggle{display:flex;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero-visual img{aspect-ratio:16/9;}
  .float-card{left:auto;right:12px;bottom:-20px;}
  .page-hero{padding:132px 0 60px;}
  .side-sticky{position:static;}
  .sec-head h2{font-size:27px;}
}
@media (max-width:767px){
  :root{--sec-pad:48px;}
  .wrap{padding:0 16px;}
  body{font-size:16px;}
  .page-hero{padding:120px 0 52px;}
  .page-hero h1{font-size:30px;}
  .hero-lead{font-size:15.5px;}
  .sec-head h2{font-size:24px;}
  .kb-card{padding:22px;}
  .kb-card h2{font-size:19px;}
  .cta-inner h2{font-size:23px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .btn-white{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px;}
}
@media (max-width:400px){
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn-grad,.hero-actions .btn-ghost-light{width:100%;}
  .fact-pill{width:100%;justify-content:flex-start;}
  .float-card{position:static;margin-top:14px;left:0;right:0;}
}

/* roulang page: article */
:root{
  --brand-1:#FF5A3C;
  --brand-2:#FF2E93;
  --grad:linear-gradient(135deg,#FF5A3C 0%,#FF2E93 100%);
  --teal:#16C7A8;
  --amber:#FFC53D;
  --ink:#14121A;
  --bg:#FBF7F4;
  --card:#FFFFFF;
  --text:#1B1820;
  --text-2:#5C5663;
  --text-3:#8B8590;
  --line:#EDE8E4;
  --border:#E4DDD8;
  --soft:#F4EFEB;
  --r-lg:24px;
  --r-md:16px;
  --r-btn:14px;
  --r-in:12px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(20,18,26,.06);
  --sh-2:0 12px 32px rgba(20,18,26,.10);
  --sh-3:0 16px 40px rgba(255,90,60,.28);
  --sec:96px;
  --bs-body-color:var(--text);
  --bs-link-color:var(--brand-1);
  --bs-link-hover-color:#E23F6F;
  --bs-border-radius:var(--r-md);
  --bs-body-font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--bs-body-font-family);
  font-size:16px;
  line-height:1.75;
  padding-bottom:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease-out}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--teal);outline-offset:2px}
.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;
  border-bottom:1px solid transparent;
  transition:background .24s ease-out,box-shadow .24s ease-out,border-color .24s ease-out;
}
.site-header.scrolled{
  background:rgba(255,255,255,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
  box-shadow:var(--sh-1);
}
.header-inner{display:flex;align-items:center;gap:24px;height:68px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:26px;height:26px;border-radius:9px;background:var(--grad);
  position:relative;flex:0 0 auto;
}
.logo-mark::after{
  content:"";position:absolute;left:8px;top:7px;width:10px;height:12px;
  border-radius:3px;background:rgba(255,255,255,.92);
  clip-path:polygon(0 0,100% 50%,0 100%);
  width:11px;height:12px;
}
.logo-text{font-size:17px;font-weight:800;letter-spacing:-.2px;color:var(--text);white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:8px}
.nav-links a{
  position:relative;padding:6px 0;font-size:15px;font-weight:600;color:var(--text-2);
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:3px;border-radius:3px;
  background:var(--grad);transform:scaleX(0);transform-origin:left;
  transition:transform .22s ease-out;
}
.nav-links a:hover{color:var(--text)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.nav-links a.active::after{transform:scaleX(1)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-box{
  display:flex;align-items:center;gap:8px;
  width:240px;height:40px;padding:0 10px 0 12px;
  background:var(--soft);border:1px solid transparent;border-radius:var(--r-in);
  color:var(--text-3);font-size:13px;transition:.2s ease-out;
}
.search-box:hover{background:#fff;border-color:var(--border);box-shadow:var(--sh-1)}
.search-box i{font-size:13px;color:var(--text-3)}
.search-box input{
  flex:1 1 auto;min-width:0;border:0;background:transparent;outline:none;
  font-size:13px;color:var(--text);
}
.search-box input::placeholder{color:var(--text-3)}
.kbd{
  flex:0 0 auto;font-size:11px;line-height:1;padding:4px 6px;border-radius:6px;
  background:#fff;border:1px solid var(--border);color:var(--text-3);
}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-pill);border:1px solid var(--border);
  background:#fff;color:var(--text-2);display:flex;align-items:center;justify-content:center;
  font-size:14px;transition:.2s ease-out;
}
.icon-btn:hover{color:var(--brand-1);border-color:#FFD3C6;transform:translateY(-2px);box-shadow:var(--sh-1)}
.btn-grad{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border:0;border-radius:var(--r-btn);
  background:var(--grad);color:#fff;font-size:15px;font-weight:700;letter-spacing:.2px;
  box-shadow:var(--sh-3);cursor:pointer;
  transition:transform .2s ease-out,box-shadow .2s ease-out,filter .2s ease-out;
}
.btn-grad:hover{transform:translateY(-2px);filter:saturate(1.06);color:#fff;box-shadow:0 18px 44px rgba(255,90,60,.34)}
.btn-grad:active{transform:translateY(1px)}
.btn-nav{height:40px;padding:0 18px;font-size:14px}
.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  background:#fff;border:1px solid var(--border);color:var(--text);
  font-size:15px;font-weight:700;transition:.2s ease-out;
}
.btn-line:hover{border-color:var(--brand-1);color:var(--brand-1);transform:translateY(-2px);box-shadow:var(--sh-1)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  background:transparent;border:1px solid rgba(255,255,255,.38);color:#fff;
  font-size:15px;font-weight:700;transition:.2s ease-out;
}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-2px)}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:var(--r-in);
  border:1px solid var(--border);background:#fff;color:var(--text);font-size:16px;
}
.offcanvas{background:#fff;max-width:300px}
.offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px}
.offcanvas-title{font-size:16px;font-weight:800}
.m-nav{display:flex;flex-direction:column;padding:8px 0}
.m-nav a{
  display:flex;align-items:center;justify-content:space-between;
  height:48px;padding:0 8px;font-size:15px;font-weight:600;color:var(--text-2);
  border-bottom:1px solid var(--line);
}
.m-nav a:hover{color:var(--brand-1)}
.m-nav a i{font-size:12px;color:var(--text-3)}

/* ---------- article hero ---------- */
.article-hero{
  padding:44px 0 48px;
  background-image:linear-gradient(135deg,rgba(251,247,244,.94),rgba(255,238,236,.9)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:22px}
.crumb a{color:var(--text-3)}
.crumb a:hover{color:var(--brand-1)}
.crumb .sep{opacity:.6}
.crumb .cur{color:var(--text);font-weight:700;max-width:60vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-hero h1{
  margin:0 0 20px;max-width:920px;
  font-size:34px;line-height:1.35;font-weight:800;letter-spacing:-.5px;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:13px;color:var(--text-3)}
.meta-row .divider{width:1px;height:13px;background:var(--border)}
.pill-cat{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:#FFF0EC;color:#E23F5B;font-size:12px;font-weight:700;
}

/* ---------- layout ---------- */
.article-main{padding:64px 0 var(--sec)}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;align-items:start}
.article-col{min-width:0}
.article-body{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:40px 44px;box-shadow:var(--sh-1);
  font-size:17.5px;line-height:1.9;color:var(--text);
}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 20px}
.article-body h2{
  position:relative;margin:40px 0 16px;padding-left:16px;
  font-size:26px;line-height:1.45;font-weight:700;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;border-radius:4px;background:var(--grad);
}
.article-body h3{margin:32px 0 12px;font-size:20px;font-weight:700;line-height:1.5}
.article-body h4{margin:24px 0 10px;font-size:17px;font-weight:700}
.article-body ul{list-style:none;margin:0 0 20px;padding:0}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:10px}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:13px;width:8px;height:8px;border-radius:50%;background:var(--teal);
}
.article-body ol{margin:0 0 20px;padding-left:24px}
.article-body ol li{margin-bottom:10px;padding-left:4px}
.article-body ol li::marker{color:var(--brand-1);font-weight:700}
.article-body blockquote{
  margin:24px 0;padding:20px 24px;border-radius:var(--r-md);
  background:var(--soft);border-left:4px solid var(--teal);color:var(--text-2);font-size:16.5px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{
  width:auto;max-width:100%;height:auto;margin:26px auto;border-radius:var(--r-md);box-shadow:var(--sh-1);
}
.article-body a{color:var(--brand-1);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:#E23F6F}
.article-body strong{font-weight:700}
.article-body table{
  display:block;width:100%;overflow-x:auto;border-collapse:collapse;margin:24px 0;font-size:15px;
}
.article-body th{
  background:var(--soft);text-align:left;font-weight:700;padding:12px 14px;border:1px solid var(--border);white-space:nowrap;
}
.article-body td{padding:12px 14px;border:1px solid var(--border);vertical-align:top}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}
.article-body code{
  background:var(--soft);border-radius:6px;padding:2px 6px;font-size:15px;color:#C2375C;
}

/* ---------- empty state ---------- */
.empty-state{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:64px 32px;text-align:center;box-shadow:var(--sh-1);
}
.empty-state i{font-size:34px;color:var(--brand-1)}
.empty-state h2{margin:18px 0 10px;font-size:22px;font-weight:700}
.empty-state p{margin:0 auto 24px;max-width:460px;color:var(--text-2);font-size:15px}

/* ---------- tags / prev-next ---------- */
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin:28px 0 0}
.tag-row .label{font-size:13px;color:var(--text-3)}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--border);font-size:13px;color:var(--text-2);transition:.2s ease-out;
}
.tag:hover{border-color:#FFD3C6;color:var(--brand-1);box-shadow:var(--sh-1)}
.pn-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:32px}
.pn-card{
  display:flex;flex-direction:column;gap:8px;padding:22px 24px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.pn-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.pn-card .dir{font-size:12px;color:var(--text-3);letter-spacing:.4px}
.pn-card .ttl{font-size:16px;font-weight:700;line-height:1.55}
.pn-card:hover .ttl{color:var(--brand-1)}
.pn-card .arrow{font-size:13px;color:var(--brand-1)}

/* ---------- related ---------- */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin:56px 0 24px}
.sec-head h2{
  position:relative;margin:0;padding-left:16px;font-size:26px;font-weight:700;line-height:1.4;
}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;border-radius:4px;background:var(--grad);
}
.sec-head .more{font-size:14px;font-weight:700;color:var(--brand-1);white-space:nowrap}
.sec-head .more:hover{color:#E23F6F}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rel-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.rel-thumb{position:relative;aspect-ratio:16/9;overflow:hidden}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out}
.rel-card:hover .rel-thumb img{transform:scale(1.03)}
.rel-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.rel-body .tagline{
  align-self:flex-start;display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:var(--r-pill);background:#FFF0EC;color:#E23F5B;font-size:12px;font-weight:700;
}
.rel-body h3{margin:0;font-size:17px;font-weight:700;line-height:1.55}
.rel-card:hover .rel-body h3{color:var(--brand-1)}
.rel-body p{margin:0;font-size:14px;color:var(--text-2);line-height:1.75}
.rel-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:var(--text-3)}
.back-link{display:inline-flex;align-items:center;gap:8px;margin-top:32px;font-size:15px;font-weight:700;color:var(--brand-1)}
.back-link:hover{color:#E23F6F;gap:12px}

/* ---------- sidebar ---------- */
.sidebar{display:flex;flex-direction:column;gap:20px;position:sticky;top:92px;align-self:start}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:22px;box-shadow:var(--sh-1)}
.side-card h3{margin:0 0 14px;font-size:15px;font-weight:800;letter-spacing:.2px}
.toc{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}
.toc a{
  position:relative;display:block;padding:9px 10px 9px 14px;border-radius:10px;
  font-size:14px;color:var(--text-2);transition:.18s ease-out;
}
.toc a::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;border-radius:3px;
  background:var(--grad);opacity:0;transition:opacity .18s ease-out;
}
.toc a:hover{background:var(--soft);color:var(--text)}
.toc a:hover::before,.toc a.on::before{opacity:1}
.toc a.on{background:var(--soft);color:var(--text);font-weight:700}
.side-cta{
  background:var(--ink);border-radius:var(--r-md);padding:24px;color:#fff;
  border:1px solid rgba(255,255,255,.1);
}
.side-cta h3{margin:0 0 8px;font-size:16px;font-weight:800;color:#fff}
.side-cta p{margin:0 0 16px;font-size:13.5px;line-height:1.75;color:#C9C4CF}
.side-cta .btn-grad{width:100%;height:44px;font-size:14px}
.side-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}
.side-list a{display:flex;align-items:center;justify-content:space-between;font-size:14px;color:var(--text-2);gap:10px}
.side-list a:hover{color:var(--brand-1)}
.side-list a i{font-size:11px;color:var(--text-3)}

/* ---------- faq ---------- */
.faq-section{padding:0 0 var(--sec)}
.faq-acc .accordion-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  margin-bottom:12px;overflow:hidden;box-shadow:var(--sh-1);
}
.faq-acc .accordion-button{
  padding:18px 22px;font-size:16px;font-weight:700;color:var(--text);background:#fff;box-shadow:none;
}
.faq-acc .accordion-button:not(.collapsed){color:var(--brand-1);background:#FFF7F4}
.faq-acc .accordion-button:focus{box-shadow:none;border-color:transparent}
.faq-acc .accordion-button::after{
  width:24px;height:24px;background-size:14px;background-position:center;
  background-repeat:no-repeat;border-radius:50%;border:1px solid var(--border);background-color:#fff;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M8 2v12M2 8h12' stroke='%23FF5A3C' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");
  transform:rotate(0);transition:transform .22s ease-out;
}
.faq-acc .accordion-button.collapsed::after{transform:rotate(0)}
.faq-acc .accordion-button:not(.collapsed)::after{transform:rotate(45deg)}
.faq-acc .accordion-body{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--text-2)}

/* ---------- cta band ---------- */
.cta-band{
  background:var(--grad);border-radius:0;padding:52px 0;color:#fff;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-inner h2{margin:0 0 8px;font-size:28px;font-weight:800;line-height:1.35;color:#fff}
.cta-inner p{margin:0;font-size:14.5px;color:rgba(255,255,255,.88);max-width:560px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn-white{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);background:#fff;color:#1B1820;
  font-size:15px;font-weight:800;border:0;transition:.2s ease-out;
}
.btn-white:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(20,18,26,.22);color:#1B1820}

/* ---------- footer ---------- */
.site-footer{
  background:var(--ink);color:#C9C4CF;padding:64px 0 28px;
  border-top:1px solid rgba(255,255,255,.1);
}
.site-footer h4{margin:0 0 16px;font-size:14px;font-weight:800;color:#fff;letter-spacing:.3px}
.footer-brand{max-width:360px}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-logo .logo-mark{width:24px;height:24px;border-radius:8px}
.footer-logo .logo-text{font-size:16px;font-weight:800;color:#fff}
.footer-brand p{margin:0 0 18px;font-size:14px;line-height:1.8;color:#C9C4CF}
.footer-sub{display:flex;gap:10px}
.footer-sub input{
  flex:1 1 auto;min-width:0;height:44px;padding:0 14px;border-radius:var(--r-in);
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);color:#fff;font-size:14px;outline:none;
  transition:.2s ease-out;
}
.footer-sub input::placeholder{color:#8B8590}
.footer-sub input:focus{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.4)}
.btn-grad-sm{height:44px;padding:0 20px;font-size:14px;box-shadow:none}
.footer-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:11px}
.footer-list a{font-size:14px;color:#C9C4CF}
.footer-list a:hover{
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:12px;color:#8B8590;
}

/* ---------- floating ---------- */
.float-dock{
  position:fixed;right:24px;bottom:96px;z-index:1040;
  display:flex;flex-direction:column;gap:12px;
}
.dock-btn{
  width:52px;height:52px;border-radius:var(--r-pill);
  display:flex;align-items:center;justify-content:center;gap:0;
  background:#fff;border:1px solid var(--border);color:var(--text-2);
  box-shadow:var(--sh-2);font-size:17px;overflow:hidden;
  transition:width .24s ease-out,background .2s ease-out,color .2s ease-out;
}
.dock-btn span{
  max-width:0;opacity:0;white-space:nowrap;font-size:14px;font-weight:700;
  transition:max-width .24s ease-out,opacity .2s ease-out,margin .24s ease-out;
}
.dock-btn:hover{width:auto;padding:0 18px;color:var(--brand-1);border-color:#FFD3C6}
.dock-btn:hover span{max-width:120px;opacity:1;margin-left:8px}
.dock-main{background:var(--grad);border-color:transparent;color:#fff;box-shadow:var(--sh-3)}
.dock-main:hover{color:#fff;border-color:transparent}
.mobile-bar{
  display:none;position:fixed;left:12px;right:12px;bottom:12px;z-index:1045;
  height:56px;border-radius:var(--r-btn);background:var(--grad);color:#fff;
  align-items:center;justify-content:center;font-size:15px;font-weight:700;
  box-shadow:var(--sh-3);opacity:0;transform:translateY(14px);pointer-events:none;
  transition:opacity .24s ease-out,transform .24s ease-out;
}
.mobile-bar.show{opacity:1;transform:translateY(0);pointer-events:auto}

/* ---------- responsive ---------- */
@media (max-width:1399px){
  .wrap{max-width:1140px}
}
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px}
  .sidebar{position:static;top:auto;flex-direction:row;flex-wrap:wrap}
  .sidebar .side-card,.sidebar .side-cta{flex:1 1 300px}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:991px){
  :root{--sec:72px}
  .nav-links{display:none}
  .search-box{display:none}
  .nav-toggle{display:flex;align-items:center;justify-content:center}
  .article-hero h1{font-size:30px}
  .article-body{padding:32px 26px;font-size:17px}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .float-dock{display:none}
  .mobile-bar{display:flex}
  body{padding-bottom:76px}
}
@media (max-width:767px){
  :root{--sec:56px}
  .wrap{padding:0 18px}
  .header-inner{height:60px;gap:14px}
  .logo-text{font-size:16px}
  .article-hero{padding:30px 0 34px}
  .article-hero h1{font-size:25px;line-height:1.4}
  .crumb{margin-bottom:16px}
  .crumb .cur{max-width:70vw}
  .article-main{padding:40px 0 var(--sec)}
  .article-body{padding:24px 20px;border-radius:18px;font-size:16.5px;line-height:1.85}
  .article-body h2{font-size:21px;margin:32px 0 14px}
  .article-body h3{font-size:18px}
  .pn-grid{grid-template-columns:minmax(0,1fr)}
  .rel-grid{grid-template-columns:minmax(0,1fr)}
  .sec-head h2{font-size:21px}
  .rel-card{border-radius:20px}
  .btn-grad,.btn-line,.btn-white,.btn-ghost{width:100%}
  .cta-actions{width:100%}
  .cta-inner h2{font-size:22px}
  .footer-bottom{flex-direction:column;gap:6px}
}
@media (max-width:400px){
  .logo-text{font-size:15px}
  .btn-nav{padding:0 14px;font-size:13px}
  .meta-row{gap:10px}
}

/* roulang page: category2 */
:root{
  --brand-1:#FF5A3C;
  --brand-2:#FF2E93;
  --brand-grad:linear-gradient(135deg,#FF5A3C 0%,#FF2E93 100%);
  --brand-grad-soft:linear-gradient(135deg,rgba(255,90,60,.12) 0%,rgba(255,46,147,.12) 100%);
  --teal:#16C7A8;
  --amber:#FFC53D;
  --ink:#14121A;
  --paper:#FBF7F4;
  --card:#FFFFFF;
  --t1:#1B1820;
  --t2:#5C5663;
  --t3:#8B8590;
  --line:#EDE8E4;
  --stroke:#E4DDD8;
  --r-lg:24px;
  --r-md:16px;
  --r-btn:14px;
  --r-in:12px;
  --shadow-1:0 2px 8px rgba(20,18,26,.06);
  --shadow-2:0 12px 32px rgba(20,18,26,.10);
  --shadow-3:0 16px 40px rgba(255,90,60,.28);
  --bs-body-bg:var(--paper);
  --bs-body-color:var(--t1);
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--t1);
  font-family:var(--bs-font-sans-serif);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease-out;}
a:hover{color:var(--brand-1);}
button{font-family:inherit;}
input{font-family:inherit;}
h1,h2,h3,h4,h5{margin:0;color:var(--t1);}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--teal);outline-offset:2px;border-radius:6px;}

.wrap{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 24px;
}
.wrap-narrow{max-width:1080px;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(251,247,244,.96);
  border-bottom:1px solid transparent;
  transition:background .25s ease-out,border-color .25s ease-out,box-shadow .25s ease-out,backdrop-filter .25s ease-out;
}
.site-header.is-stuck{
  background:rgba(255,255,255,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-1);
}
.header-inner{
  height:68px;
  display:flex;
  align-items:center;
  gap:24px;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.logo-mark{
  width:26px;
  height:26px;
  border-radius:9px;
  background:var(--brand-grad);
  box-shadow:0 6px 16px rgba(255,90,60,.32);
  position:relative;
}
.logo-mark::after{
  content:"";
  position:absolute;
  left:7px;top:7px;
  width:12px;height:12px;
  border-radius:4px;
  background:rgba(255,255,255,.85);
}
.logo-text{
  font-size:17px;
  font-weight:800;
  letter-spacing:-.3px;
  color:var(--t1);
  white-space:nowrap;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:28px;
  flex:1;
  justify-content:center;
}
.nav-links a{
  position:relative;
  font-size:15px;
  font-weight:600;
  color:var(--t2);
  padding:6px 0;
  white-space:nowrap;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:-2px;
  width:0;
  height:3px;
  border-radius:2px;
  background:var(--brand-grad);
  transform:translateX(-50%);
  transition:width .22s ease-out;
}
.nav-links a:hover{color:var(--t1);}
.nav-links a:hover::after{width:26px;}
.nav-links a.active{
  background:var(--brand-grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.nav-links a.active::after{width:100%;}
.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.cmd-search{
  display:flex;
  align-items:center;
  gap:8px;
  width:240px;
  height:40px;
  padding:0 10px 0 14px;
  border-radius:var(--r-in);
  background:#F4EFEB;
  border:1px solid transparent;
  transition:background .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
  cursor:text;
}
.cmd-search:hover,.cmd-search:focus-within{
  background:#fff;
  border-color:var(--stroke);
  box-shadow:var(--shadow-1);
}
.cmd-search i{color:var(--t3);font-size:13px;}
.cmd-search input{
  flex:1;
  min-width:0;
  border:0;
  background:transparent;
  outline:none;
  font-size:13px;
  color:var(--t1);
}
.cmd-search input::placeholder{color:var(--t3);font-size:13px;}
.kbd{
  font-size:11px;
  line-height:1;
  padding:5px 7px;
  border-radius:999px;
  background:#fff;
  border:1px solid var(--stroke);
  color:var(--t3);
  white-space:nowrap;
}
.icon-btn{
  width:40px;height:40px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  border:1px solid var(--stroke);
  background:#fff;
  color:var(--t2);
  cursor:pointer;
  transition:all .2s ease-out;
}
.icon-btn:hover{color:var(--brand-1);border-color:rgba(255,90,60,.45);transform:translateY(-2px);box-shadow:var(--shadow-1);}
.search-icon-btn{display:none;}
.nav-toggle{display:none;}

.btn-grad{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  border:0;
  border-radius:var(--r-btn);
  background:var(--brand-grad);
  color:#fff;
  font-size:15px;
  font-weight:700;
  cursor:pointer;
  box-shadow:var(--shadow-3);
  transition:transform .2s ease-out,box-shadow .2s ease-out,filter .2s ease-out;
}
.btn-grad:hover{color:#fff;transform:translateY(-2px);filter:saturate(1.08);box-shadow:0 20px 44px rgba(255,46,147,.32);}
.btn-grad:active{transform:translateY(1px);}
.btn-nav{height:40px;padding:0 20px;font-size:14px;box-shadow:0 10px 24px rgba(255,90,60,.26);}
.btn-grad-sm{height:40px;padding:0 18px;font-size:14px;box-shadow:0 8px 20px rgba(255,90,60,.24);}
.btn-outline{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--r-btn);
  background:#fff;
  border:1px solid var(--stroke);
  color:var(--t1);
  font-size:15px;
  font-weight:600;
  transition:all .2s ease-out;
}
.btn-outline:hover{border-color:var(--brand-1);color:var(--brand-1);transform:translateY(-2px);box-shadow:var(--shadow-1);}
.btn-light-solid{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  border-radius:var(--r-btn);
  border:0;
  background:#fff;
  color:#1B1820;
  font-size:15px;
  font-weight:700;
  cursor:pointer;
  box-shadow:0 12px 28px rgba(20,18,26,.18);
  transition:transform .2s ease-out;
}
.btn-light-solid:hover{color:var(--brand-1);transform:translateY(-2px);}

/* ============ 抽屉导航 ============ */
.offcanvas.drawer{
  background:#fff;
  width:300px;
  border-left:1px solid var(--line);
}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:20px 22px;
  border-bottom:1px solid var(--line);
}
.drawer-list a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:48px;
  padding:0 22px;
  font-size:15px;
  font-weight:600;
  color:var(--t2);
  border-bottom:1px solid var(--line);
}
.drawer-list a.active{color:var(--brand-1);}
.drawer-list a i{font-size:12px;color:var(--t3);}
.drawer-foot{padding:20px 22px;}
.drawer-foot .btn-grad{width:100%;}

/* ============ 面包屑 ============ */
.crumb{
  font-size:13px;
  color:var(--t3);
  padding:20px 0 0;
}
.crumb ol{display:flex;flex-wrap:wrap;gap:8px;align-items:center;}
.crumb li{display:inline-flex;align-items:center;gap:8px;}
.crumb a{color:var(--t3);}
.crumb a:hover{color:var(--brand-1);}
.crumb .sep{color:#C6BEB9;}
.crumb .current{color:var(--t1);font-weight:700;}

/* ============ 页头 ============ */
.page-hero{
  margin-top:20px;
  border-radius:var(--r-lg);
  overflow:hidden;
  position:relative;
  background:linear-gradient(135deg,#FFF1EC 0%,#FFE9F3 100%);
  border:1px solid var(--line);
}
.page-hero::before{
  content:"";
  position:absolute;
  right:-80px;top:-120px;
  width:420px;height:420px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(255,46,147,.28) 0%,rgba(255,46,147,0) 68%);
}
.page-hero-inner{
  position:relative;
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:40px;
  align-items:center;
  padding:56px 48px;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  font-weight:700;
  letter-spacing:1px;
  color:var(--t3);
  margin-bottom:16px;
}
.eyebrow::before{
  content:"";
  width:24px;height:4px;
  border-radius:2px;
  background:var(--brand-grad);
}
.page-hero h1{
  font-size:44px;
  line-height:1.2;
  font-weight:800;
  letter-spacing:-.5px;
}
.page-hero h1 em{
  font-style:normal;
  background:var(--brand-grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-sub{
  margin-top:16px;
  font-size:17px;
  color:var(--t2);
  max-width:560px;
}
.hero-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:24px;
}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:7px 14px;
  border-radius:999px;
  font-size:13px;
  font-weight:600;
  background:#fff;
  border:1px solid var(--stroke);
  color:var(--t2);
}
.tag i{font-size:11px;color:var(--teal);}
.pill-grad{
  background:var(--brand-grad);
  color:#fff;
  border:0;
  padding:7px 14px;
  border-radius:999px;
  font-size:13px;
  font-weight:700;
}
.hero-figure{
  position:relative;
  border-radius:var(--r-md);
  overflow:hidden;
  aspect-ratio:16/10;
  box-shadow:var(--shadow-2);
}
.hero-figure img{width:100%;height:100%;object-fit:cover;}
.hero-float{
  position:absolute;
  left:-18px;
  bottom:18px;
  background:#fff;
  border-radius:var(--r-md);
  padding:14px 18px;
  box-shadow:var(--shadow-2);
  border:1px solid var(--line);
}
.hero-float strong{
  display:block;
  font-size:26px;
  font-weight:800;
  font-variant-numeric:tabular-nums;
  letter-spacing:-.5px;
}
.hero-float span{font-size:12px;color:var(--t3);}

/* ============ 通用板块 ============ */
section{padding:72px 0;}
.sec-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:32px;
}
.sec-head h2{
  font-size:32px;
  line-height:1.25;
  font-weight:700;
  letter-spacing:-.4px;
  margin-top:10px;
}
.sec-head p{
  margin-top:10px;
  color:var(--t2);
  max-width:640px;
  font-size:16px;
}
.sec-link{
  font-size:14px;
  font-weight:600;
  color:var(--brand-1);
  white-space:nowrap;
}
.sec-link i{font-size:12px;margin-left:6px;}

.card-soft{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-1);
  padding:28px;
  height:100%;
  transition:transform .22s ease-out,box-shadow .22s ease-out;
}
.card-soft:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.card-top-line{position:relative;overflow:hidden;}
.card-top-line::before{
  content:"";
  position:absolute;
  left:0;top:0;right:0;
  height:4px;
  background:var(--brand-grad);
}

/* 指标卡 */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.stat-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:24px;
  transition:transform .22s ease-out,box-shadow .22s ease-out;
}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.stat-num{
  font-size:28px;
  font-weight:800;
  line-height:1.2;
  font-variant-numeric:tabular-nums;
  letter-spacing:-.5px;
  background:var(--brand-grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.stat-label{
  margin-top:6px;
  font-size:13px;
  color:var(--t3);
}
.stat-desc{
  margin-top:12px;
  font-size:14px;
  color:var(--t2);
  line-height:1.7;
}

/* 两栏 + sticky 侧栏 */
.layout-2col{
  display:grid;
  grid-template-columns:8fr 4fr;
  gap:32px;
  align-items:start;
}
.side-sticky{position:sticky;top:92px;}

/* 时间线 */
.timeline{position:relative;padding-left:34px;}
.timeline::before{
  content:"";
  position:absolute;
  left:11px;top:8px;bottom:8px;
  width:2px;
  background:linear-gradient(180deg,rgba(255,90,60,.55),rgba(255,46,147,.35),rgba(228,221,216,.9));
  border-radius:2px;
}
.tl-item{position:relative;padding-bottom:26px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";
  position:absolute;
  left:-34px;top:6px;
  width:24px;height:24px;
  border-radius:50%;
  background:#fff;
  border:2px solid var(--brand-1);
  box-shadow:0 0 0 4px rgba(255,90,60,.10);
}
.tl-item h3{font-size:20px;font-weight:700;display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.tl-item h3 .num{
  font-size:12px;
  font-weight:700;
  color:#fff;
  background:var(--brand-grad);
  border-radius:999px;
  padding:3px 10px;
  font-variant-numeric:tabular-nums;
}
.tl-item p{margin-top:10px;color:var(--t2);font-size:15px;}
.tl-list{margin-top:12px;display:grid;gap:8px;}
.tl-list li{
  display:flex;
  gap:10px;
  font-size:14px;
  color:var(--t2);
}
.tl-list li i{color:var(--teal);margin-top:5px;font-size:12px;}

/* 侧栏 */
.side-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:22px;
  box-shadow:var(--shadow-1);
  margin-bottom:20px;
}
.side-card h3{font-size:16px;font-weight:700;margin-bottom:14px;}
.side-anchor a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:11px 0;
  font-size:14px;
  color:var(--t2);
  border-bottom:1px dashed var(--line);
}
.side-anchor li:last-child a{border-bottom:0;}
.side-anchor a:hover{color:var(--brand-1);padding-left:4px;}
.side-anchor i{font-size:11px;color:var(--t3);}
.side-cta{
  background:var(--ink);
  border-radius:var(--r-md);
  padding:24px;
  color:#fff;
  margin-bottom:20px;
  border:1px solid rgba(255,255,255,.10);
}
.side-cta h3{color:#fff;font-size:17px;margin-bottom:10px;}
.side-cta p{color:#C9C4CF;font-size:14px;margin-bottom:18px;}
.side-cta .btn-grad{width:100%;height:44px;font-size:14px;}
.side-links a{
  display:flex;
  align-items:center;
  gap:10px;
  padding:10px 0;
  font-size:14px;
  color:var(--t2);
}
.side-links a i{font-size:11px;color:var(--brand-1);}
.side-links a:hover{color:var(--brand-1);}

/* 对照双栏 */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.compare-col{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:28px;
  box-shadow:var(--shadow-1);
}
.compare-col h3{font-size:20px;display:flex;align-items:center;gap:10px;margin-bottom:6px;}
.compare-col .cap{font-size:13px;color:var(--t3);margin-bottom:18px;}
.badge-soft{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  border-radius:999px;
  font-size:12px;
  font-weight:700;
}
.badge-soft.warn{background:rgba(255,90,60,.10);color:#D9431F;}
.badge-soft.ok{background:rgba(22,199,168,.12);color:#0E9E85;}
.compare-list li{
  display:flex;
  gap:12px;
  padding:12px 0;
  font-size:15px;
  color:var(--t2);
  border-bottom:1px solid var(--line);
}
.compare-list li:last-child{border-bottom:0;padding-bottom:0;}
.compare-list i{margin-top:6px;font-size:13px;}
.compare-list .fa-circle-exclamation{color:#E8632F;}
.compare-list .fa-circle-check{color:var(--teal);}
.compare-list strong{display:block;color:var(--t1);font-size:15px;margin-bottom:2px;}

/* 场景卡 */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.scene-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  display:flex;
  flex-direction:column;
  transition:transform .22s ease-out,box-shadow .22s ease-out;
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.scene-card .cover{aspect-ratio:16/9;overflow:hidden;}
.scene-card .cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out;}
.scene-card:hover .cover img{transform:scale(1.03);}
.scene-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.scene-body h3{font-size:18px;font-weight:700;}
.scene-body p{font-size:14px;color:var(--t2);flex:1;}
.scene-meta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:var(--t3);
  border-top:1px solid var(--line);
  padding-top:12px;
}
.scene-meta a{font-weight:600;color:var(--brand-1);}

/* FAQ */
.faq-wrap{max-width:900px;margin:0 auto;}
.accordion-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md) !important;
  margin-bottom:12px;
  overflow:hidden;
  box-shadow:var(--shadow-1);
}
.accordion-button{
  background:#fff;
  color:var(--t1);
  font-size:16px;
  font-weight:700;
  padding:20px 22px;
  box-shadow:none !important;
  border:0;
  position:relative;
}
.accordion-button:not(.collapsed){color:var(--brand-1);background:#fff;}
.accordion-button::after{
  width:18px;height:18px;
  background-size:18px;
  filter:grayscale(1) opacity(.55);
  transition:transform .22s ease-out;
}
.accordion-button:not(.collapsed)::after{filter:none;}
.accordion-button:not(.collapsed)::before{
  content:"";
  position:absolute;
  left:0;top:0;bottom:0;
  width:4px;
  background:var(--brand-grad);
}
.accordion-body{
  padding:0 22px 22px;
  font-size:15px;
  color:var(--t2);
  line-height:1.85;
}
.accordion-body ul{margin-top:12px;display:grid;gap:8px;}
.accordion-body ul li{display:flex;gap:10px;font-size:14px;}
.accordion-body ul li i{color:var(--teal);margin-top:5px;font-size:11px;}

/* CTA 带 */
.cta-band{
  background:var(--brand-grad);
  border-radius:var(--r-lg);
  padding:44px 48px;
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  box-shadow:0 24px 56px rgba(255,46,147,.26);
}
.cta-band h2{color:#fff;font-size:30px;font-weight:800;letter-spacing:-.4px;line-height:1.3;}
.cta-band p{margin-top:10px;color:rgba(255,255,255,.88);font-size:15px;max-width:640px;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:80px;
  background:var(--ink);
  color:#C9C4CF;
  border-top:1px solid rgba(255,255,255,.10);
  padding:64px 0 0;
}
.site-footer h4{
  color:#fff;
  font-size:15px;
  font-weight:700;
  margin-bottom:18px;
}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-logo .logo-text{color:#fff;}
.footer-brand p{font-size:14px;color:#C9C4CF;max-width:360px;}
.footer-sub{display:flex;gap:10px;margin-top:20px;max-width:380px;}
.footer-sub input{
  flex:1;
  min-width:0;
  height:40px;
  border-radius:var(--r-in);
  border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.06);
  color:#fff;
  padding:0 14px;
  font-size:13px;
  outline:none;
  transition:border-color .2s ease-out,background .2s ease-out;
}
.footer-sub input::placeholder{color:#8B8590;}
.footer-sub input:focus{background:rgba(255,255,255,.10);border-color:rgba(255,90,60,.7);}
.footer-list li{margin-bottom:10px;}
.footer-list a{font-size:14px;color:#C9C4CF;}
.footer-list a:hover{
  background:var(--brand-grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.footer-bottom{
  margin-top:48px;
  padding:20px 0 26px;
  border-top:1px solid rgba(255,255,255,.10);
  display:flex;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  font-size:12px;
  color:#8B8590;
}

/* 回到顶部 */
.to-top{
  position:fixed;
  right:24px;
  bottom:32px;
  width:46px;height:46px;
  border-radius:50%;
  background:#fff;
  border:1px solid var(--stroke);
  color:var(--t2);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  box-shadow:var(--shadow-2);
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  transition:all .25s ease-out;
  z-index:1040;
  cursor:pointer;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{color:var(--brand-1);border-color:rgba(255,90,60,.45);}

/* ============ 响应式 ============ */
@media (max-width:1399px){
  .wrap{max-width:1140px;}
}
@media (max-width:1199px){
  .page-hero h1{font-size:38px;}
  .layout-2col{grid-template-columns:8fr 4fr;gap:24px;}
  .stat-grid{grid-template-columns:repeat(4,1fr);gap:16px;}
}
@media (max-width:991px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .cmd-search{width:180px;}
  .page-hero-inner{grid-template-columns:1fr;padding:40px 28px;gap:28px;}
  .page-hero h1{font-size:34px;}
  .hero-figure{order:2;}
  .hero-float{left:14px;bottom:14px;}
  .layout-2col{grid-template-columns:1fr;}
  .side-sticky{position:static;}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .scene-grid{grid-template-columns:repeat(2,1fr);}
  .compare{grid-template-columns:1fr;}
  section{padding:56px 0;}
  .sec-head h2{font-size:26px;}
  .cta-band{padding:36px 28px;}
  .cta-band h2{font-size:24px;}
}
@media (max-width:767px){
  .cmd-search{display:none;}
  .search-icon-btn{display:inline-flex;}
  .btn-nav .cta-full{display:none;}
  .btn-nav .cta-short{display:inline;}
  .header-inner{height:60px;gap:12px;}
  .logo-text{font-size:16px;}
  .page-hero{margin-top:14px;border-radius:var(--r-md);}
  .page-hero-inner{padding:32px 22px;}
  .page-hero h1{font-size:30px;}
  .hero-sub{font-size:15px;}
  section{padding:48px 0;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .sec-head h2{font-size:24px;}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:14px;}
  .stat-card{padding:20px;}
  .stat-num{font-size:24px;}
  .scene-grid{grid-template-columns:1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;}
  .cta-band .btn-light-solid{width:100%;}
  .to-top{right:14px;bottom:18px;width:42px;height:42px;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:400px){
  .stat-grid{grid-template-columns:1fr;}
  .btn-grad,.btn-outline,.btn-light-solid{width:100%;}
  .timeline{padding-left:28px;}
}

/* roulang page: category4 */
:root{
  --brand-1:#FF5A3C;
  --brand-2:#FF2E93;
  --brand-grad:linear-gradient(135deg,#FF5A3C 0%,#FF2E93 100%);
  --teal:#16C7A8;
  --amber:#FFC53D;
  --ink:#14121A;
  --paper:#FBF7F4;
  --card:#FFFFFF;
  --text:#1B1820;
  --text-2:#5C5663;
  --text-3:#8B8590;
  --line:#EDE8E4;
  --stroke:#E4DDD8;
  --radius-lg:24px;
  --radius-md:16px;
  --radius-btn:14px;
  --radius-input:12px;
  --shadow-1:0 2px 8px rgba(20,18,26,.06);
  --shadow-2:0 12px 32px rgba(20,18,26,.10);
  --shadow-3:0 16px 40px rgba(255,90,60,.28);
  --sec:96px;
  --bs-primary:#FF5A3C;
  --bs-link-color:#FF5A3C;
  --bs-link-hover-color:#FF2E93;
  --bs-body-color:#1B1820;
  --bs-body-bg:#FBF7F4;
  --bs-border-radius:16px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease-out}
a:hover{color:var(--brand-1)}
button,input{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.2px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
::selection{background:rgba(255,90,60,.18)}
:focus-visible{outline:2px solid var(--teal);outline-offset:2px;border-radius:6px}

.wrap{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.narrow{max-width:1080px}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(251,247,244,.92);
  border-bottom:1px solid transparent;
  transition:background .24s ease-out,box-shadow .24s ease-out,border-color .24s ease-out;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.78);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-1);
}
.nav-wrap{display:flex;align-items:center;gap:24px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:26px;height:26px;border-radius:9px;
  background:var(--brand-grad);
  box-shadow:0 6px 16px rgba(255,90,60,.32);
  position:relative;
  flex:0 0 auto;
}
.logo-mark::after{
  content:"";position:absolute;inset:8px 8px auto auto;width:7px;height:7px;border-radius:2px;
  background:#fff;opacity:.9;
}
.logo-text{font-size:17px;font-weight:800;letter-spacing:-.3px;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:8px}
.nav-links a{
  position:relative;font-size:15px;font-weight:600;color:var(--text-2);padding:6px 0;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:auto;bottom:0;height:3px;width:0;
  border-radius:999px;background:var(--brand-grad);
  transition:width .22s ease-out;
}
.nav-links a:hover{color:var(--text)}
.nav-links a:hover::after{width:100%}
.nav-links a.active{
  background:var(--brand-grad);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:var(--brand-1);
}
.nav-links a.active::after{width:100%}
.nav-tools{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-search{
  display:flex;align-items:center;gap:8px;
  width:240px;height:40px;padding:0 10px 0 12px;
  background:#F4EFEB;border:1px solid transparent;border-radius:var(--radius-input);
  transition:background .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.nav-search:hover{background:#fff;border-color:var(--stroke);box-shadow:var(--shadow-1)}
.nav-search i{color:var(--text-3);font-size:13px}
.nav-search input{
  border:0;background:transparent;outline:none;flex:1;min-width:0;
  font-size:13px;color:var(--text);
}
.nav-search input::placeholder{color:#9B95A0}
.kbd{
  font-size:11px;color:var(--text-3);background:#fff;border:1px solid var(--stroke);
  border-radius:999px;padding:2px 8px;white-space:nowrap;
}
.icon-btn{
  width:40px;height:40px;border-radius:999px;border:1px solid var(--stroke);
  background:#fff;color:var(--text-2);display:grid;place-items:center;cursor:pointer;
  transition:border-color .2s ease-out,color .2s ease-out,transform .2s ease-out;
}
.icon-btn:hover{border-color:var(--brand-1);color:var(--brand-1);transform:translateY(-2px)}
.btn-grad{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border:0;border-radius:var(--radius-btn);
  background:var(--brand-grad);color:#fff;font-size:15px;font-weight:700;cursor:pointer;
  box-shadow:var(--shadow-3);
  transition:transform .2s ease-out,box-shadow .2s ease-out,filter .2s ease-out;
}
.btn-grad:hover{color:#fff;transform:translateY(-2px);filter:saturate(1.08)}
.btn-grad:active{transform:translateY(1px)}
.btn-grad-sm{height:40px;padding:0 18px;font-size:14px;box-shadow:0 10px 24px rgba(255,90,60,.26)}
.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--radius-btn);
  background:#fff;border:1px solid var(--stroke);color:var(--text);font-size:15px;font-weight:600;cursor:pointer;
  transition:border-color .2s ease-out,color .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out;
}
.btn-line:hover{border-color:var(--brand-1);color:var(--brand-1);transform:translateY(-2px);box-shadow:var(--shadow-1)}
.burger{
  display:none;width:40px;height:40px;border-radius:12px;border:1px solid var(--stroke);
  background:#fff;color:var(--text);place-items:center;cursor:pointer;
}
.drawer{
  position:fixed;inset:0;z-index:1200;background:rgba(20,18,26,.5);
  opacity:0;visibility:hidden;transition:opacity .24s ease-out,visibility .24s ease-out;
}
.drawer.open{opacity:1;visibility:visible}
.drawer-panel{
  position:absolute;top:0;right:0;width:min(320px,86vw);height:100%;
  background:#fff;padding:22px 20px;transform:translateX(100%);
  transition:transform .26s ease-out;display:flex;flex-direction:column;gap:6px;
}
.drawer.open .drawer-panel{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.drawer-panel a{
  display:flex;align-items:center;justify-content:space-between;
  height:48px;padding:0 12px;border-radius:12px;font-weight:600;color:var(--text-2);
}
.drawer-panel a:hover{background:var(--paper);color:var(--text)}
.drawer-panel a.active{background:rgba(255,90,60,.08);color:var(--brand-1)}

/* ============ 通用板块 ============ */
main{display:block}
.section{padding:var(--sec) 0}
.section-sm{padding:64px 0}
.sec-head{margin-bottom:32px}
.sec-index{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:2px;color:var(--text-3);font-weight:700;text-transform:uppercase;
}
.sec-index::before{content:"";width:12px;height:12px;border-radius:4px;background:var(--brand-grad)}
.sec-head h2{font-size:32px;line-height:40px;margin-top:12px}
.sec-head p{color:var(--text-2);margin-top:10px;max-width:720px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 12px;border-radius:999px;
  background:rgba(255,90,60,.10);color:var(--brand-1);font-size:13px;font-weight:700;
}
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;
  background:var(--paper);border:1px solid var(--line);color:var(--text-2);font-size:12.5px;font-weight:600;
}
.badge-teal{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;
  background:rgba(22,199,168,.10);border:1px solid rgba(22,199,168,.45);color:#0E8E79;font-size:12.5px;font-weight:700;
}
.dot{width:7px;height:7px;border-radius:999px;background:var(--teal);display:inline-block}

.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);padding:26px;
  transition:transform .22s ease-out,box-shadow .22s ease-out;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.card h3{font-size:22px;line-height:30px}
.card p{color:var(--text-2);margin-top:10px;font-size:15.5px}

/* 面包屑 */
.crumb{padding:20px 0 0;font-size:13px;color:var(--text-3)}
.crumb ol{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.crumb li::after{content:"›";margin-left:8px;color:#C6C0CB}
.crumb li:last-child::after{content:""}
.crumb a{color:var(--text-3)}
.crumb a:hover{color:var(--brand-1)}
.crumb .current{color:var(--text);font-weight:700}

/* ============ 分类页头 ============ */
.cat-hero{
  position:relative;overflow:hidden;border-radius:0 0 32px 32px;
  background:linear-gradient(135deg,#FFF1EC 0%,#FDF2F7 55%,#FBF7F4 100%);
  padding:40px 0 56px;margin-top:6px;
}
.cat-hero::before{
  content:"";position:absolute;right:-140px;top:-120px;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle at 40% 40%,rgba(255,90,60,.30),rgba(255,46,147,.10) 60%,transparent 72%);
  pointer-events:none;
}
.cat-hero-grid{position:relative;display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:40px;align-items:center}
.cat-hero h1{font-size:44px;line-height:52px;font-weight:800;letter-spacing:-.5px;margin-top:16px}
.cat-hero h1 span{
  background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
}
.cat-hero .lead{margin-top:16px;font-size:16.5px;color:var(--text-2);max-width:620px}
.cat-hero .meta-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.cat-hero-art{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  aspect-ratio:16/11;box-shadow:var(--shadow-2);border:1px solid rgba(255,255,255,.7);
}
.cat-hero-art img{width:100%;height:100%;object-fit:cover}
.cat-hero-art .float-card{
  position:absolute;left:16px;bottom:16px;right:16px;
  background:rgba(255,255,255,.94);border-radius:var(--radius-md);
  padding:14px 16px;box-shadow:var(--shadow-2);display:flex;align-items:center;gap:14px;
}
.cat-hero-art .float-card .num{font-size:28px;font-weight:800;font-variant-numeric:tabular-nums;background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.cat-hero-art .float-card .txt{font-size:13px;color:var(--text-2);line-height:1.5}

/* ============ 主体两栏 ============ */
.layout{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:32px;align-items:start}
.kb{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-1);padding:28px;margin-bottom:24px}
.kb:last-child{margin-bottom:0}
.kb h2{font-size:24px;line-height:34px;display:flex;align-items:center;gap:12px}
.kb h2::before{content:"";width:4px;height:24px;border-radius:999px;background:var(--brand-grad);flex:0 0 auto}
.kb p{margin-top:14px;color:var(--text-2);font-size:15.5px}
.kb .figure{margin-top:20px;border-radius:var(--radius-md);overflow:hidden;border:1px solid var(--line)}
.kb .figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
.kb .figure figcaption{font-size:13px;color:var(--text-3);padding:10px 14px;background:var(--paper)}
.check-list{margin-top:18px;display:grid;gap:10px}
.check-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--text-2)}
.check-list i{color:var(--teal);margin-top:5px;font-size:14px}
.mini-steps{margin-top:18px;display:grid;gap:12px}
.mini-steps li{
  display:flex;gap:12px;align-items:flex-start;padding:14px 16px;
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-md);
}
.mini-steps .n{
  flex:0 0 auto;width:26px;height:26px;border-radius:999px;display:grid;place-items:center;
  background:#fff;border:1px solid rgba(255,90,60,.45);color:var(--brand-1);font-size:13px;font-weight:800;
}
.mini-steps b{display:block;font-size:15px}
.mini-steps span{font-size:14px;color:var(--text-2)}

/* 侧栏 */
.aside{position:sticky;top:88px;display:grid;gap:20px}
.aside-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);box-shadow:var(--shadow-1);padding:20px}
.aside-card h3{font-size:16px;display:flex;align-items:center;gap:8px}
.aside-card h3 i{color:var(--brand-1);font-size:14px}
.anchor-list{margin-top:14px;display:grid;gap:4px}
.anchor-list a{
  display:flex;align-items:center;gap:8px;padding:9px 10px;border-radius:10px;
  font-size:14px;color:var(--text-2);
}
.anchor-list a::before{content:"";width:3px;height:14px;border-radius:999px;background:var(--stroke)}
.anchor-list a:hover{background:var(--paper);color:var(--text)}
.anchor-list a:hover::before{background:var(--brand-1)}
.cta-card{
  background:linear-gradient(135deg,#1B1820 0%,#2A2233 100%);
  border:1px solid rgba(255,255,255,.14);color:#fff;
}
.cta-card h3{color:#fff}
.cta-card p{color:#C9C4CF;font-size:14px;margin-top:10px}
.cta-card .btn-grad{width:100%;margin-top:16px}
.link-list{margin-top:12px;display:grid;gap:2px}
.link-list a{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:10px 8px;border-bottom:1px dashed var(--line);font-size:14.5px;color:var(--text-2);
}
.link-list li:last-child a{border-bottom:0}
.link-list a:hover{color:var(--brand-1)}
.link-list i{font-size:12px;color:var(--text-3)}

/* ============ 流程步骤 ============ */
.flow{position:relative;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;margin-top:12px}
.flow::before{
  content:"";position:absolute;left:0;right:0;top:30px;height:2px;
  background:linear-gradient(90deg,rgba(255,90,60,.35),rgba(255,46,147,.25),rgba(22,199,168,.35));
}
.flow-item{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow-1);transition:transform .22s ease-out,box-shadow .22s ease-out}
.flow-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.flow-item .step{
  position:relative;z-index:1;width:44px;height:44px;border-radius:999px;display:grid;place-items:center;
  background:#fff;border:2px solid transparent;
  background-image:linear-gradient(#fff,#fff),var(--brand-grad);
  background-origin:border-box;background-clip:padding-box,border-box;
  font-weight:800;color:var(--brand-1);font-variant-numeric:tabular-nums;
  box-shadow:0 6px 16px rgba(255,90,60,.16);
}
.flow-item h3{font-size:17px;margin-top:16px}
.flow-item p{font-size:14.5px;color:var(--text-2);margin-top:8px}

/* ============ FAQ ============ */
.faq{display:grid;gap:12px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  box-shadow:var(--shadow-1);overflow:hidden;
}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;justify-content:space-between;
  padding:18px 20px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:16.5px;font-weight:700;color:var(--text);
}
.faq-q .q-left{display:flex;align-items:center;gap:12px}
.faq-q .faq-ico{
  width:26px;height:26px;flex:0 0 auto;border-radius:9px;display:grid;place-items:center;
  background:var(--paper);color:var(--brand-1);font-size:12px;transition:transform .24s ease-out;
}
.faq-item.open .faq-q .faq-ico{transform:rotate(45deg);background:rgba(255,90,60,.12)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease-out}
.faq-a-inner{padding:0 20px 20px 60px;color:var(--text-2);font-size:15px;line-height:1.85}
.faq-item.open{border-left:4px solid transparent;border-image:var(--brand-grad) 1}
.faq-item.open .faq-a{max-height:420px}

/* ============ 转化带 ============ */
.cta-band{
  background:var(--brand-grad);border-radius:28px;padding:44px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:0 20px 48px rgba(255,90,60,.24);
}
.cta-band h2{color:#fff;font-size:30px;line-height:40px}
.cta-band p{color:rgba(255,255,255,.88);font-size:15px;margin-top:10px;max-width:560px}
.cta-band .btn-white{
  display:inline-flex;align-items:center;gap:8px;height:48px;padding:0 26px;
  background:#fff;color:var(--ink);border:0;border-radius:var(--radius-btn);
  font-weight:700;font-size:15px;cursor:pointer;white-space:nowrap;
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.cta-band .btn-white:hover{color:var(--ink);transform:translateY(-2px);box-shadow:0 14px 30px rgba(20,18,26,.22)}
.cta-note{color:rgba(255,255,255,.82);font-size:13px;margin-top:14px}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:var(--sec);background:var(--ink);color:#fff;
  border-top:1px solid rgba(255,255,255,.10);padding:64px 0 0;
}
.footer-logo{display:flex;align-items:center;gap:10px}
.footer-brand p{color:#C9C4CF;font-size:14.5px;margin-top:14px;max-width:380px}
.footer-sub{display:flex;gap:10px;margin-top:20px;max-width:400px}
.footer-sub input{
  flex:1;min-width:0;height:48px;padding:0 14px;border-radius:var(--radius-input);
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);color:#fff;font-size:14px;outline:none;
  transition:border-color .2s ease-out,background .2s ease-out,box-shadow .2s ease-out;
}
.footer-sub input::placeholder{color:#8B8590}
.footer-sub input:focus{background:rgba(255,255,255,.1);border-color:var(--brand-1);box-shadow:0 0 0 4px rgba(255,90,60,.18)}
.site-footer h4{font-size:15px;color:#fff;margin-bottom:16px}
.footer-list{display:grid;gap:10px}
.footer-list a{color:#C9C4CF;font-size:14.5px}
.footer-list a:hover{background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.10);
  padding:20px 0;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:12px;color:#8B8590;
}

/* ============ 浮动按钮 ============ */
.to-top{
  position:fixed;right:24px;bottom:32px;z-index:900;
  width:48px;height:48px;border-radius:999px;border:1px solid var(--stroke);background:#fff;
  color:var(--text-2);display:grid;place-items:center;cursor:pointer;box-shadow:var(--shadow-2);
  opacity:0;visibility:hidden;transition:opacity .24s ease-out,visibility .24s ease-out,transform .2s ease-out;
}
.to-top.show{opacity:1;visibility:visible}
.to-top:hover{color:var(--brand-1);border-color:var(--brand-1);transform:translateY(-2px)}

/* ============ 响应式 ============ */
@media (max-width:1399px){
  .wrap{max-width:1140px}
}
@media (max-width:1199px){
  .nav-search{width:190px}
  .layout{grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:26px}
  .aside{top:80px}
  .cat-hero h1{font-size:38px;line-height:46px}
}
@media (max-width:991px){
  :root{--sec:72px}
  .nav-links{display:none}
  .nav-search{display:none}
  .burger{display:grid}
  .cat-hero-grid{grid-template-columns:1fr;gap:28px}
  .cat-hero-art{order:2}
  .layout{grid-template-columns:1fr}
  .aside{position:static;order:2}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr))}
  .flow::before{display:none}
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px}
  .sec-head h2{font-size:26px;line-height:34px}
}
@media (max-width:767px){
  :root{--sec:48px}
  body{font-size:16px}
  .wrap{padding:0 16px}
  .nav-wrap{height:60px;gap:12px}
  .logo-text{font-size:15.5px}
  .cat-hero{padding:28px 0 40px;border-radius:0 0 22px 22px}
  .cat-hero h1{font-size:31px;line-height:40px}
  .cat-hero .lead{font-size:15px}
  .kb{padding:20px}
  .kb h2{font-size:20px;line-height:28px}
  .card{padding:20px}
  .flow{grid-template-columns:1fr}
  .flow-item{padding:20px}
  .faq-q{font-size:15.5px;padding:16px}
  .faq-a-inner{padding:0 16px 18px 16px}
  .cta-band h2{font-size:24px;line-height:32px}
  .footer-bottom{flex-direction:column}
  .to-top{right:16px;bottom:80px}
}
@media (max-width:400px){
  .btn-grad,.btn-line,.btn-white{width:100%}
  .meta-row{gap:8px}
  .cat-hero-art .float-card{position:static;margin:12px;border-radius:var(--radius-md)}
}

/* roulang page: category3 */
:root{
  --brand-1:#FF5A3C;
  --brand-2:#FF2E93;
  --brand-grad:linear-gradient(135deg,#FF5A3C 0%,#FF2E93 100%);
  --brand-grad-soft:linear-gradient(135deg,rgba(255,90,60,.10) 0%,rgba(255,46,147,.08) 100%);
  --teal:#16C7A8;
  --amber:#FFC53D;
  --ink:#14121A;
  --bg:#FBF7F4;
  --card:#FFFFFF;
  --text:#1B1820;
  --muted:#5C5663;
  --weak:#8B8590;
  --line:#EDE8E4;
  --stroke:#E4DDD8;
  --soft:#F4EFEB;
  --r-lg:24px;
  --r-md:16px;
  --r-btn:14px;
  --r-input:12px;
  --r-pill:999px;
  --shadow-1:0 2px 8px rgba(20,18,26,.06);
  --shadow-2:0 12px 32px rgba(20,18,26,.10);
  --shadow-3:0 16px 40px rgba(255,90,60,.28);
  --section:96px;
  --bs-body-font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.25;letter-spacing:-.4px;}
h1{font-size:44px;line-height:1.2;}
h2{font-size:32px;}
h3{font-size:22px;font-weight:700;}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
button{font-family:inherit;cursor:pointer;}
input,button{font-family:inherit;}
:focus-visible{outline:2px solid var(--teal);outline-offset:2px;}
::selection{background:rgba(255,90,60,.18);}

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

/* ============ header ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(251,247,244,.92);
  border-bottom:1px solid transparent;
  transition:background .24s ease,box-shadow .24s ease,border-color .24s ease,backdrop-filter .24s ease;
}
.site-header.scrolled{
  background:rgba(255,255,255,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
  box-shadow:var(--shadow-1);
}
.header-inner{display:flex;align-items:center;gap:26px;height:68px;}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:30px;height:30px;border-radius:10px;background:var(--brand-grad);
  position:relative;flex-shrink:0;box-shadow:0 6px 16px rgba(255,90,60,.35);
}
.logo-mark::after{
  content:"";position:absolute;inset:9px;border-radius:4px;background:#fff;opacity:.92;
}
.logo-text{font-size:17px;font-weight:800;letter-spacing:-.3px;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:28px;}
.nav-links a{
  position:relative;
  font-size:15px;
  font-weight:600;
  color:var(--muted);
  padding:6px 0;
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;width:3px;height:3px;border-radius:2px;
  background:var(--brand-grad);opacity:0;transform:translateY(4px);
  transition:opacity .2s ease,transform .2s ease,width .2s ease;
}
.nav-links a:hover{color:var(--text);}
.nav-links a:hover::after{opacity:1;transform:translateY(0);width:100%;}
.nav-links a.active{
  color:transparent;
  background:var(--brand-grad);
  -webkit-background-clip:text;
  background-clip:text;
}
.nav-links a.active::after{opacity:1;transform:translateY(0);width:100%;}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.nav-search{
  display:flex;align-items:center;gap:8px;
  width:240px;height:40px;padding:0 10px 0 12px;
  background:var(--soft);border:1px solid transparent;border-radius:var(--r-input);
  transition:background .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.nav-search:focus-within,.nav-search:hover{background:#fff;border-color:var(--stroke);box-shadow:var(--shadow-1);}
.nav-search i{color:var(--weak);font-size:13px;}
.nav-search input{
  flex:1;min-width:0;border:0;background:transparent;outline:none;
  font-size:13px;color:var(--text);
}
.nav-search input::placeholder{color:var(--weak);}
.kbd{
  font-size:11px;color:var(--weak);padding:2px 6px;border:1px solid var(--stroke);
  border-radius:6px;background:#fff;white-space:nowrap;line-height:1.4;
}
.icon-btn{
  width:40px;height:40px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--stroke);background:#fff;color:var(--muted);font-size:14px;
  transition:border-color .2s ease,color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.icon-btn:hover{border-color:var(--brand-1);color:var(--brand-1);box-shadow:var(--shadow-1);transform:translateY(-2px);}
.icon-btn.search-sm{display:none;}
.btn-grad{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border:0;border-radius:var(--r-btn);
  background:var(--brand-grad);color:#fff;font-size:15px;font-weight:700;
  box-shadow:var(--shadow-3);transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
}
.btn-grad:hover{color:#fff;transform:translateY(-2px);filter:saturate(1.06);box-shadow:0 20px 44px rgba(255,90,60,.34);}
.btn-grad:active{transform:translateY(1px);}
.btn-grad.btn-nav{height:40px;padding:0 20px;font-size:14px;}
.btn-grad-sm{height:42px;padding:0 20px;font-size:14px;box-shadow:none;}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border:1px solid var(--stroke);border-radius:var(--r-btn);
  background:#fff;color:var(--text);font-size:15px;font-weight:700;
  transition:border-color .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-ghost:hover{border-color:var(--brand-1);color:var(--brand-1);transform:translateY(-2px);box-shadow:var(--shadow-1);}
.btn-ghost-dark{
  height:48px;padding:0 24px;border:1px solid rgba(255,255,255,.42);border-radius:var(--r-btn);
  background:transparent;color:#fff;font-size:15px;font-weight:700;
  display:inline-flex;align-items:center;gap:8px;transition:background .2s ease,border-color .2s ease,transform .2s ease;
}
.btn-ghost-dark:hover{background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.7);transform:translateY(-2px);}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--stroke);background:#fff;border-radius:12px;
  padding:0;flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:16px;height:2px;border-radius:2px;background:var(--text);transition:transform .22s ease,opacity .22s ease;}
body.nav-open .nav-toggle span:nth-child(1){transform:translateY(6px) rotate(45deg);}
body.nav-open .nav-toggle span:nth-child(2){opacity:0;}
body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.nav-backdrop{
  position:fixed;inset:0;background:rgba(20,18,26,.42);opacity:0;visibility:hidden;
  transition:opacity .24s ease,visibility .24s ease;z-index:1035;
}
body.nav-open .nav-backdrop{opacity:1;visibility:visible;}

/* ============ hero ============ */
.page-hero{
  position:relative;
  background:linear-gradient(180deg,#FFF3EE 0%,#FBF7F4 100%);
  border-bottom:1px solid var(--line);
  padding:56px 0 68px;
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;right:-140px;top:-160px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle at 40% 40%,rgba(255,90,60,.22),rgba(255,46,147,.10) 55%,transparent 72%);
  pointer-events:none;
}
.page-hero-inner{position:relative;z-index:2;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--weak);margin-bottom:24px;}
.crumbs a{color:var(--weak);}
.crumbs a:hover{color:var(--brand-1);}
.crumbs span{color:var(--stroke);}
.crumbs strong{color:var(--muted);font-weight:700;}
.tag-pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:var(--r-pill);
  background:#fff;border:1px solid rgba(255,90,60,.28);color:var(--brand-1);
  font-size:13px;font-weight:700;box-shadow:var(--shadow-1);margin-bottom:20px;
}
.tag-pill i{font-size:11px;}
.page-hero h1{margin-bottom:18px;max-width:16em;}
.page-hero .lead{font-size:17px;color:var(--muted);max-width:34em;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;}
.mini-tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:var(--r-pill);background:#fff;border:1px solid var(--line);
  font-size:13px;color:var(--muted);font-weight:600;
}
.mini-tag i{color:var(--teal);font-size:11px;}
.hero-art{
  position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-2);
  border:1px solid var(--line);aspect-ratio:4/3;background:#fff;
}
.hero-art img{width:100%;height:100%;object-fit:cover;}
.hero-art .art-badge{
  position:absolute;left:16px;bottom:16px;right:16px;
  background:rgba(20,18,26,.86);backdrop-filter:blur(6px);
  border:1px solid rgba(255,255,255,.16);border-radius:var(--r-md);
  padding:12px 16px;display:flex;align-items:center;gap:10px;
  color:#fff;font-size:13px;
}
.dot{width:8px;height:8px;border-radius:50%;background:var(--teal);box-shadow:0 0 0 4px rgba(22,199,168,.22);flex-shrink:0;}

/* ============ sections ============ */
.section{padding:var(--section) 0;}
.section-tight{padding:72px 0;}
.section-head{margin-bottom:32px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;font-size:12px;font-weight:800;
  letter-spacing:1.6px;color:var(--weak);text-transform:uppercase;margin-bottom:12px;
}
.eyebrow::before{content:"";width:12px;height:12px;border-radius:4px;background:var(--brand-grad);}
.section-head h2{max-width:22em;}
.section-head p{margin-top:12px;color:var(--muted);max-width:44em;}

/* ============ 主体两栏 ============ */
.layout-main{padding:72px 0 0;}
.col-main{padding-right:8px;}
.col-side{padding-left:8px;}
.block-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--shadow-1);margin-bottom:24px;
  transition:transform .22s ease,box-shadow .22s ease;
  scroll-margin-top:96px;
}
.block-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.block-card h2{font-size:26px;margin-bottom:8px;}
.block-card h3{font-size:19px;margin:24px 0 10px;}
.block-kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:800;
  color:var(--brand-1);letter-spacing:1.2px;margin-bottom:10px;
}
.block-card p{color:var(--muted);font-size:16px;}
.check-list{margin-top:18px;display:grid;gap:12px;}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text);}
.check-list li i{color:var(--teal);font-size:14px;margin-top:5px;flex-shrink:0;}
.check-list li span{color:var(--muted);}
.figure-cover{
  margin:24px 0 0;border-radius:var(--r-md);overflow:hidden;border:1px solid var(--line);
  aspect-ratio:16/9;background:var(--soft);position:relative;
}
.figure-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.figure-cover:hover img{transform:scale(1.03);}
.figure-cap{margin-top:10px;font-size:13px;color:var(--weak);}

/* 时间线 */
.timeline{margin-top:26px;position:relative;padding-left:34px;}
.timeline::before{
  content:"";position:absolute;left:13px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(180deg,var(--brand-1),var(--brand-2),rgba(255,46,147,.05));border-radius:2px;
}
.tl-item{position:relative;padding-bottom:26px;}
.tl-item:last-child{padding-bottom:0;}
.tl-num{
  position:absolute;left:-34px;top:0;width:28px;height:28px;border-radius:50%;
  background:#fff;border:2px solid transparent;
  background-image:linear-gradient(#fff,#fff),var(--brand-grad);
  background-origin:border-box;background-clip:padding-box,border-box;
  display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:800;color:var(--brand-1);
}
.tl-item h3{margin:2px 0 8px;font-size:18px;}
.tl-item p{color:var(--muted);font-size:15px;margin-bottom:0;}

/* 功能小卡 */
.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:24px;}
.feature-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:20px;
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.feature-item:hover{border-color:rgba(255,90,60,.4);transform:translateY(-3px);box-shadow:var(--shadow-1);}
.feature-item .fi-icon{
  width:38px;height:38px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:var(--brand-grad-soft);color:var(--brand-1);font-size:15px;margin-bottom:12px;
}
.feature-item h4{font-size:16px;font-weight:800;margin-bottom:6px;}
.feature-item p{font-size:14px;color:var(--muted);margin:0;}

/* 对照双栏 */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:24px;}
.compare-col{
  border-radius:var(--r-md);padding:22px;border:1px solid var(--line);background:#fff;
}
.compare-col.accent{background:linear-gradient(160deg,rgba(255,90,60,.07),rgba(255,46,147,.04));border-color:rgba(255,90,60,.24);}
.compare-col h4{font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.compare-col h4 i{color:var(--brand-1);font-size:13px;}
.compare-col ul{display:grid;gap:10px;}
.compare-col li{font-size:14px;color:var(--muted);display:flex;gap:8px;line-height:1.7;}
.compare-col li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--stroke);margin-top:9px;flex-shrink:0;}
.compare-col.accent li::before{background:var(--brand-2);}

/* ============ 侧栏 ============ */
.side-sticky{position:sticky;top:96px;display:grid;gap:20px;}
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--shadow-1);
}
.side-card h3{font-size:16px;margin-bottom:16px;display:flex;align-items:center;gap:8px;}
.side-card h3 i{color:var(--brand-1);font-size:13px;}
.anchor-list{display:grid;gap:4px;}
.anchor-list a{
  display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:12px;
  font-size:14px;color:var(--muted);font-weight:600;
  transition:background .18s ease,color .18s ease,padding-left .18s ease;
}
.anchor-list a::before{content:"";width:4px;height:4px;border-radius:50%;background:var(--stroke);transition:background .18s ease;}
.anchor-list a:hover{background:var(--soft);color:var(--text);padding-left:16px;}
.anchor-list a:hover::before{background:var(--brand-1);}
.side-cta{
  background:linear-gradient(150deg,#1B1820 0%,#14121A 100%);
  border:1px solid rgba(255,255,255,.08);border-radius:var(--r-lg);padding:26px;color:#fff;
  position:relative;overflow:hidden;
}
.side-cta::after{
  content:"";position:absolute;right:-60px;bottom:-60px;width:180px;height:180px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,90,60,.42),transparent 68%);
}
.side-cta h3{font-size:18px;color:#fff;margin-bottom:10px;position:relative;z-index:2;}
.side-cta p{font-size:14px;color:#C9C4CF;margin-bottom:18px;position:relative;z-index:2;}
.side-cta .btn-grad{width:100%;height:44px;position:relative;z-index:2;box-shadow:0 12px 26px rgba(255,90,60,.32);}
.link-list{display:grid;gap:10px;}
.link-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 14px;border-radius:12px;background:var(--soft);
  font-size:14px;font-weight:600;color:var(--muted);
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.link-list a i{font-size:12px;color:var(--weak);transition:transform .2s ease,color .2s ease;}
.link-list a:hover{background:#fff;color:var(--brand-1);transform:translateX(3px);box-shadow:var(--shadow-1);border:1px solid var(--line);}
.link-list a:hover i{color:var(--brand-1);transform:translateX(3px);}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-accordion .accordion-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  margin-bottom:12px;overflow:hidden;
}
.faq-accordion .accordion-button{
  position:relative;width:100%;background:#fff;border:0;box-shadow:none;
  padding:20px 62px 20px 24px;font-size:17px;font-weight:700;color:var(--text);
  text-align:left;border-radius:0;line-height:1.5;
}
.faq-accordion .accordion-button:not(.collapsed){
  color:var(--brand-1);
  background:linear-gradient(90deg,rgba(255,90,60,.06),rgba(255,46,147,.02));
}
.faq-accordion .accordion-button:focus{box-shadow:none;outline:2px solid var(--teal);outline-offset:-2px;}
.faq-accordion .accordion-button::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:4px;border-radius:0 4px 4px 0;
  background:var(--brand-grad);opacity:0;transition:opacity .2s ease;
}
.faq-accordion .accordion-button:not(.collapsed)::before{opacity:1;}
.faq-accordion .accordion-button::after{
  content:"+";
  position:absolute;right:20px;top:50%;margin:0;
  width:26px;height:26px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background-image:var(--brand-grad);
  color:#fff;font-size:15px;font-weight:700;line-height:1;
  transform:translateY(-50%);
  transition:transform .22s ease;
}
.faq-accordion .accordion-button:not(.collapsed)::after{transform:translateY(-50%) rotate(45deg);}
.faq-accordion .accordion-body{
  padding:4px 24px 22px 24px;font-size:15px;color:var(--muted);line-height:1.85;
}

/* ============ CTA band ============ */
.cta-band{
  background:var(--brand-grad);
  border-radius:28px;padding:44px 40px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  box-shadow:0 24px 56px rgba(255,60,110,.26);
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;
  background:rgba(255,255,255,.14);
}
.cta-band h2{font-size:28px;color:#fff;margin-bottom:8px;}
.cta-band p{color:rgba(255,255,255,.9);font-size:15px;margin:0;}
.btn-white{
  display:inline-flex;align-items:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-btn);border:0;
  background:#fff;color:#1B1820;font-size:15px;font-weight:800;
  transition:transform .2s ease,box-shadow .2s ease;
  position:relative;z-index:2;flex-shrink:0;
}
.btn-white:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(20,18,26,.24);color:#1B1820;}

/* ============ footer ============ */
.site-footer{
  background:var(--ink);color:#fff;margin-top:96px;padding:72px 0 0;
  border-top:1px solid rgba(255,255,255,.08);
}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-logo .logo-text{font-size:17px;color:#fff;}
.footer-brand p{color:#C9C4CF;font-size:14px;max-width:32em;}
.footer-sub{display:flex;gap:10px;margin-top:20px;max-width:360px;}
.footer-sub input{
  flex:1;min-width:0;height:42px;padding:0 14px;border-radius:var(--r-input);
  border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.06);
  color:#fff;font-size:13px;outline:none;transition:border-color .2s ease,background .2s ease;
}
.footer-sub input::placeholder{color:#8B8590;}
.footer-sub input:focus{border-color:rgba(255,90,60,.7);background:rgba(255,255,255,.1);}
.site-footer h4{font-size:15px;color:#fff;margin-bottom:18px;font-weight:800;}
.footer-list{display:grid;gap:11px;}
.footer-list a{font-size:14px;color:#C9C4CF;}
.footer-list a:hover{color:transparent;background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;}
.footer-bottom{
  margin-top:48px;padding:20px 0;border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:12px;color:#8B8590;
}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;right:24px;bottom:96px;z-index:1020;
  display:flex;flex-direction:column;gap:12px;align-items:flex-end;
}
.float-main{
  position:relative;width:56px;height:56px;border-radius:50%;
  background:var(--brand-grad);color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:18px;box-shadow:var(--shadow-3);transition:transform .2s ease;
}
.float-main:hover{transform:translateY(-3px);color:#fff;}
.float-main span{
  position:absolute;right:calc(100% + 12px);top:50%;transform:translate(6px,-50%);
  background:var(--ink);color:#fff;font-size:13px;font-weight:700;
  padding:8px 14px;border-radius:var(--r-pill);white-space:nowrap;
  opacity:0;pointer-events:none;transition:opacity .2s ease,transform .2s ease;
}
.float-main:hover span{opacity:1;transform:translate(0,-50%);}
.float-top{
  width:44px;height:44px;border-radius:50%;background:#fff;border:1px solid var(--stroke);
  color:var(--muted);font-size:14px;display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-1);transition:color .2s ease,border-color .2s ease,transform .2s ease;
}
.float-top:hover{color:var(--brand-1);border-color:var(--brand-1);transform:translateY(-3px);}
.mobile-cta{
  position:fixed;left:12px;right:12px;bottom:12px;z-index:1020;
  height:56px;border-radius:var(--r-btn);background:var(--brand-grad);
  color:#fff;display:none;align-items:center;justify-content:center;
  font-size:15px;font-weight:800;box-shadow:0 14px 32px rgba(255,60,110,.34);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .26s ease,transform .26s ease,visibility .26s ease;
}
.mobile-cta.show{opacity:1;visibility:visible;transform:translateY(0);}

/* ============ 响应式 ============ */
@media (max-width:1399.98px){
  .wrap{max-width:1140px;}
  .nav-search{width:210px;}
}
@media (max-width:1199.98px){
  .nav-search{display:none;}
  .icon-btn.search-sm{display:inline-flex;}
  .col-side{padding-left:8px;}
}
@media (max-width:991.98px){
  :root{--section:72px;}
  .header-inner{height:60px;gap:14px;}
  .nav-links{
    position:fixed;top:0;right:0;height:100vh;width:min(320px,84vw);
    background:#fff;flex-direction:column;align-items:stretch;gap:0;
    padding:84px 20px 28px;z-index:1040;
    transform:translateX(102%);transition:transform .28s ease;
    box-shadow:-24px 0 60px rgba(20,18,26,.16);overflow-y:auto;
  }
  body.nav-open .nav-links{transform:translateX(0);}
  .nav-links a{
    display:flex;align-items:center;justify-content:space-between;
    height:48px;font-size:16px;border-bottom:1px solid var(--line);padding:0;
  }
  .nav-links a::after{display:none;}
  .nav-links a.active{background:none;-webkit-background-clip:initial;background-clip:initial;color:var(--brand-1);}
  .nav-links a::before{
    content:"›";order:3;font-size:20px;color:var(--weak);line-height:1;
  }
  .nav-toggle{display:flex;}
  .page-hero{padding:36px 0 52px;}
  h1{font-size:34px;}
  .block-card h2{font-size:23px;}
  .side-sticky{position:static;margin-top:8px;}
  .float-cta{display:none;}
  .mobile-cta{display:flex;}
  .cta-band{padding:34px 28px;}
  .cta-band h2{font-size:24px;}
  .site-footer{margin-top:72px;padding-top:56px;}
}
@media (max-width:767.98px){
  :root{--section:48px;}
  .wrap{padding:0 16px;}
  h1{font-size:30px;}
  h2{font-size:24px;}
  .col-main{padding-right:12px;}
  .block-card{padding:22px;}
  .feature-grid,.compare{grid-template-columns:1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;border-radius:22px;}
  .btn-white{width:100%;justify-content:center;}
  .hero-actions .btn-grad,.hero-actions .btn-ghost{width:100%;}
  .footer-bottom{flex-direction:column;}
  .faq-accordion .accordion-button{font-size:16px;padding:18px 54px 18px 18px;}
  .faq-accordion .accordion-body{padding:2px 18px 18px 18px;}
  .site-footer{padding-bottom:80px;}
}
@media (max-width:575.98px){
  .logo-text{font-size:15px;}
  .btn-grad.btn-nav{padding:0 16px;font-size:13px;}
  .icon-btn{width:38px;height:38px;}
  .hero-tags{gap:8px;}
  .mini-tag{font-size:12px;padding:5px 12px;}
  .page-hero h1{font-size:27px;}
}
@media (max-width:400px){
  .hero-actions{gap:10px;}
  .btn-grad,.btn-ghost{width:100%;}
  .logo-text{font-size:14px;}
  .cta-band{padding:28px 20px;}
}