/* roulang page: index */
:root{
  --brand-600:#1F63D8;
  --brand-800:#0F357F;
  --brand-50:#EEF4FF;
  --accent-500:#12B5A0;
  --accent-50:rgba(18,181,160,.12);
  --cta-500:#FF6A2B;
  --cta-600:#F25A1A;
  --bg-0:#FFFFFF;
  --bg-1:#F5F8FD;
  --line:#E4ECF7;
  --ink-900:#0F1B33;
  --ink-600:#4A5A76;
  --ink-400:#8494AD;
  --ok:#16A34A;
  --warn:#D97706;
  --err:#DC2626;

  --r-xl:20px;
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;
  --r-pill:999px;

  --sh-1:0 1px 2px rgba(15,27,51,.04), 0 8px 24px rgba(31,99,216,.06);
  --sh-2:0 16px 40px rgba(31,99,216,.12);
  --sh-3:0 12px 32px rgba(255,106,43,.28);

  --sec-y:96px;
  --sec-y-m:56px;

  --bs-primary:#1F63D8;
  --bs-body-bg:#FFFFFF;
  --bs-body-color:#0F1B33;
  --bs-body-font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,sans-serif;
  --bs-link-color:#1F63D8;
  --bs-link-hover-color:#0F357F;
  --bs-border-color:#E4ECF7;
  --bs-border-radius:12px;
  --bs-border-radius-lg:16px;
  --bs-gutter-x:24px;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,sans-serif;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:88px;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink-900);
  background:var(--bg-0);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--brand-600);text-decoration:none;transition:color .22s ease-out;}
a:hover{color:var(--brand-800);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:-0.01em;color:var(--ink-900);}
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(--brand-600);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:1400px){.container{max-width:1280px;}}

.section{padding:var(--sec-y) 0;}
.section--tint{background:var(--bg-1);}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:40px;}
.section-head h2{font-size:32px;line-height:1.35;}
.section-head .sub{font-size:14px;line-height:1.6;color:var(--ink-600);margin-top:8px;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand-600);}
.link-arrow svg{transition:transform .22s ease-out;}
.link-arrow:hover svg{transform:translateX(4px);}

/* ---------- 按钮 ---------- */
.btn-cta,.btn-outline,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;transition:all .22s ease-out;text-align:center;
}
.btn-cta{background:var(--cta-500);color:#fff;box-shadow:0 6px 18px rgba(255,106,43,.22);}
.btn-cta:hover{background:var(--cta-600);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-3);}
.btn-cta:active{transform:translateY(0);}
.btn-cta:focus-visible{outline:2px solid var(--cta-500);outline-offset:2px;}
.btn-outline{background:transparent;border:1.5px solid var(--brand-600);color:var(--brand-600);}
.btn-outline:hover{background:rgba(31,99,216,.08);color:var(--brand-800);border-color:var(--brand-800);}
.btn-outline:active{background:rgba(31,99,216,.14);}
.btn-ghost{background:#fff;border:1px solid var(--line);color:var(--ink-600);}
.btn-ghost:hover{border-color:rgba(31,99,216,.3);color:var(--brand-600);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}

/* ---------- 徽章 ---------- */
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  border-radius:var(--r-pill);background:var(--brand-50);color:var(--brand-600);
  font-size:13px;line-height:1;font-weight:500;white-space:nowrap;
}
.badge-data{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);background:var(--accent-50);color:#0C8474;font-size:13px;line-height:1;font-weight:600;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  background:rgba(255,255,255,.98);
  border-bottom:1px solid var(--line);
  transition:box-shadow .24s ease-out, background .24s ease-out;
}
.site-header.is-scrolled{box-shadow:var(--sh-1);background:rgba(255,255,255,.96);}
.nav-wrap{display:flex;align-items:center;gap:24px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink-900);font-weight:700;font-size:17px;}
.brand:hover{color:var(--brand-600);}
.brand-mark{width:32px;height:32px;border-radius:10px;background:var(--brand-50);display:flex;align-items:center;justify-content:center;color:var(--brand-600);flex:0 0 auto;}
.nav-mid{display:flex;align-items:center;gap:28px;flex:1 1 auto;}
.nav-mid a{position:relative;font-size:15px;font-weight:500;color:var(--ink-600);padding:6px 0;}
.nav-mid a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--brand-600);border-radius:2px;transform:scaleX(0);transform-origin:left;transition:transform .24s ease-out;}
.nav-mid a:hover{color:var(--brand-600);}
.nav-mid a:hover::after,.nav-mid a.active::after{transform:scaleX(1);}
.nav-mid a.active{color:var(--brand-600);font-weight:600;}
.nav-right{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-search{position:relative;}
.nav-search input{
  width:200px;height:40px;border-radius:var(--r-pill);border:1px solid var(--line);
  background:var(--bg-1);padding:0 16px 0 38px;font-size:14px;color:var(--ink-900);
  transition:all .22s ease-out;
}
.nav-search input::placeholder{color:var(--ink-400);}
.nav-search input:focus{outline:none;background:#fff;border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(31,99,216,.12);}
.nav-search svg{position:absolute;left:13px;top:50%;transform:translateY(-50%);color:var(--ink-400);pointer-events:none;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--line);
  background:#fff;align-items:center;justify-content:center;color:var(--ink-900);cursor:pointer;
}
.nav-toggle:hover{border-color:rgba(31,99,216,.3);color:var(--brand-600);}
.nav-drawer{
  position:fixed;inset:0 0 auto 0;top:0;z-index:1040;background:#fff;
  transform:translateY(-102%);transition:transform .24s ease-out;
  box-shadow:0 24px 60px rgba(15,27,51,.14);padding:0 0 18px;
}
.nav-drawer.open{transform:translateY(0);}
.drawer-top{display:flex;align-items:center;justify-content:space-between;height:60px;border-bottom:1px solid var(--line);padding:0 20px;}
.drawer-close{width:44px;height:44px;border:none;background:transparent;font-size:22px;color:var(--ink-600);cursor:pointer;border-radius:var(--r-sm);}
.drawer-close:hover{background:var(--bg-1);color:var(--ink-900);}
.drawer-links a{display:block;padding:0 20px;height:52px;line-height:52px;font-size:15px;color:var(--ink-600);border-bottom:1px solid var(--line);}
.drawer-links a.active{color:var(--brand-600);font-weight:600;}
.drawer-search{padding:16px 20px 0;}
.drawer-search input{width:100%;height:44px;border-radius:var(--r-sm);border:1px solid var(--line);background:var(--bg-1);padding:0 14px;font-size:15px;}
.drawer-search input:focus{outline:none;background:#fff;border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(31,99,216,.12);}
.drawer-cta{padding:16px 20px 0;display:flex;gap:12px;}
.drawer-cta .btn-cta,.drawer-cta .btn-outline{flex:1;}

/* ---------- Hero ---------- */
.hero{position:relative;padding:132px 0 84px;background:var(--bg-0);overflow:hidden;}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:64px 64px;opacity:.5;
  -webkit-mask-image:radial-gradient(circle at 22% 18%,#000 0%,transparent 66%);
  mask-image:radial-gradient(circle at 22% 18%,#000 0%,transparent 66%);
  pointer-events:none;
}
.hero .container{position:relative;z-index:1;}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.hero h1{font-size:40px;line-height:1.25;font-weight:700;margin:18px 0 16px;}
.hero .lede{font-size:18px;line-height:1.7;color:var(--ink-600);max-width:520px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-trust{display:flex;flex-wrap:wrap;align-items:center;gap:0;margin-top:40px;padding-top:24px;border-top:1px solid var(--line);}
.hero-trust .trust-item{flex:1 1 0;min-width:120px;padding-right:20px;border-right:1px solid var(--line);}
.hero-trust .trust-item:last-child{border-right:none;}
.hero-trust .trust-num{font-size:22px;font-weight:700;color:var(--brand-600);font-variant-numeric:tabular-nums;line-height:1.2;}
.hero-trust .trust-label{font-size:13px;color:var(--ink-400);line-height:1.5;margin-top:2px;}
.hero-visual{position:relative;padding-bottom:28px;padding-right:28px;}
.hero-visual .main-shot{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-xl);box-shadow:var(--sh-2);}
.hero-visual .mini-shot{
  position:absolute;right:0;bottom:0;width:46%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-lg);border:6px solid #fff;box-shadow:var(--sh-2);
}
.hero-tag{
  position:absolute;left:-8px;top:24px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-pill);padding:8px 16px;font-size:13px;font-weight:600;color:var(--brand-600);
  box-shadow:var(--sh-1);display:flex;align-items:center;gap:8px;
}
.hero-tag .dot{width:8px;height:8px;border-radius:50%;background:var(--accent-500);}

/* ---------- 卖点 ---------- */
.feature-layout{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start;}
.feature-sticky{position:sticky;top:104px;}
.feature-sticky h2{font-size:32px;line-height:1.35;margin-bottom:14px;}
.feature-sticky p{color:var(--ink-600);font-size:15px;line-height:1.8;}
.feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.fcard{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--sh-1);transition:all .24s ease-out;
  display:flex;flex-direction:column;
}
.fcard:hover{box-shadow:var(--sh-2);border-color:rgba(31,99,216,.28);transform:translateY(-2px);}
.fcard .f-ico{width:44px;height:44px;border-radius:var(--r-md);background:var(--brand-50);display:flex;align-items:center;justify-content:center;color:var(--brand-600);margin-bottom:16px;}
.fcard h3{font-size:18px;line-height:1.5;margin-bottom:10px;}
.fcard p{font-size:15px;line-height:1.75;color:var(--ink-600);margin-bottom:18px;}
.fcard .f-foot{margin-top:auto;}
.fcard--wide{grid-column:span 2;flex-direction:row;gap:24px;align-items:center;}
.fcard--wide .f-body{flex:1 1 auto;}
.fcard--wide img{width:38%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-md);}
.fcard--data{background:var(--brand-800);border-color:transparent;justify-content:center;}
.fcard--data .d-num{font-size:34px;font-weight:700;color:#fff;font-variant-numeric:tabular-nums;line-height:1.15;}
.fcard--data .d-label{font-size:14px;color:rgba(255,255,255,.72);margin-top:6px;}
.fcard--data .badge-soft{background:rgba(255,255,255,.14);color:#fff;margin-bottom:14px;}

/* ---------- 演示流程 ---------- */
.demo-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:center;}
.steps{position:relative;}
.step{position:relative;padding:0 0 32px 0;display:flex;gap:20px;}
.step:last-child{padding-bottom:0;}
.step .s-num{
  font-size:44px;font-weight:700;line-height:1;color:var(--brand-50);
  font-variant-numeric:tabular-nums;flex:0 0 68px;
}
.step.is-current .s-num{color:var(--brand-600);}
.step .s-body{padding-top:2px;}
.step .s-body h3{font-size:18px;line-height:1.5;margin-bottom:6px;}
.step .s-body p{font-size:15px;color:var(--ink-600);margin:0;}
.step::after{content:"";position:absolute;left:33px;top:56px;bottom:14px;width:1px;background:var(--line);}
.step:last-child::after{display:none;}
.preview-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:12px;box-shadow:var(--sh-2);}
.preview-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-sm);}
.preview-card .pc-cap{display:flex;align-items:center;justify-content:space-between;padding:12px 6px 4px;font-size:13px;color:var(--ink-400);}
.preview-mini{margin-top:16px;display:flex;gap:14px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:12px;box-shadow:var(--sh-1);}
.preview-mini img{width:96px;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-sm);flex:0 0 auto;}
.preview-mini span{font-size:14px;color:var(--ink-600);line-height:1.6;}

/* ---------- 证据 ---------- */
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;}
.stat-item{padding:28px 24px;border-right:1px solid var(--line);}
.stat-item:last-child{border-right:none;}
.stat-item .st-num{font-size:32px;font-weight:700;color:var(--brand-600);font-variant-numeric:tabular-nums;line-height:1.1;}
.stat-item .st-label{font-size:14px;color:var(--ink-400);margin-top:8px;}
.quote-row{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:40px;}
.quote-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;box-shadow:var(--sh-1);transition:all .24s ease-out;}
.quote-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.quote-card .q-text{font-size:15px;line-height:1.8;color:var(--ink-600);margin-bottom:20px;}
.quote-card .q-user{display:flex;align-items:center;gap:12px;}
.quote-card .q-user img{width:48px;height:48px;border-radius:50%;object-fit:cover;flex:0 0 auto;}
.quote-card .q-name{font-size:15px;font-weight:600;line-height:1.4;}
.quote-card .q-role{font-size:13px;color:var(--ink-400);line-height:1.4;}
.partner-wall{display:grid;grid-template-columns:repeat(6,1fr);gap:16px;margin-top:40px;}
.partner-wall div{
  height:64px;border:1px solid var(--line);border-radius:var(--r-md);
  display:flex;align-items:center;justify-content:center;
  font-size:13px;color:var(--ink-400);background:#fff;opacity:.72;
  transition:all .24s ease-out;
}
.partner-wall div:hover{opacity:1;border-color:rgba(31,99,216,.32);color:var(--brand-600);}

/* ---------- 资讯列表 ---------- */
.news-feature{
  display:grid;grid-template-columns:6fr 6fr;gap:0;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);margin-bottom:24px;
  transition:all .24s ease-out;
}
.news-feature:hover{box-shadow:var(--sh-2);border-color:rgba(31,99,216,.28);}
.news-feature img{width:100%;height:100%;min-height:280px;aspect-ratio:16/10;object-fit:cover;}
.news-feature .nf-body{padding:32px;display:flex;flex-direction:column;}
.news-feature h3{font-size:24px;line-height:1.4;margin:14px 0 12px;}
.news-feature:hover h3{color:var(--brand-600);}
.news-feature p{font-size:15px;color:var(--ink-600);line-height:1.75;}
.news-feature .nf-meta{margin-top:auto;padding-top:18px;display:flex;align-items:center;gap:14px;font-size:13px;color:var(--ink-400);font-variant-numeric:tabular-nums;}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.ncard{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);transition:all .24s ease-out;display:flex;flex-direction:column;}
.ncard:hover{box-shadow:var(--sh-2);border-color:rgba(31,99,216,.28);transform:translateY(-2px);}
.ncard img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.ncard .nc-body{padding:20px;display:flex;flex-direction:column;flex:1 1 auto;}
.ncard h3{font-size:17px;line-height:1.5;margin:12px 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.ncard:hover h3{color:var(--brand-600);}
.ncard p{font-size:14px;line-height:1.7;color:var(--ink-600);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.ncard .nc-meta{margin-top:auto;padding-top:14px;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-400);font-variant-numeric:tabular-nums;}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--r-lg);background:#fff;
  padding:56px 24px;text-align:center;
}
.empty-state .e-ico{width:56px;height:56px;border-radius:50%;background:var(--brand-50);color:var(--brand-600);display:flex;align-items:center;justify-content:center;margin:0 auto 16px;}
.empty-state p{font-size:14px;color:var(--ink-400);margin-bottom:18px;}

/* ---------- 价格 ---------- */
.price-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:24px;align-items:start;margin-top:8px;}
.pcard{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;transition:all .24s ease-out;}
.pcard h3{font-size:18px;line-height:1.5;}
.pcard .p-desc{font-size:14px;color:var(--ink-400);margin-top:6px;}
.pcard .p-price{margin:20px 0 4px;display:flex;align-items:baseline;gap:8px;}
.pcard .p-price .num{font-size:36px;font-weight:700;color:var(--brand-600);font-variant-numeric:tabular-nums;line-height:1;}
.pcard .p-price .unit{font-size:14px;color:var(--ink-400);}
.pcard ul{margin-top:22px;display:flex;flex-direction:column;gap:12px;}
.pcard li{display:flex;gap:10px;font-size:15px;line-height:1.6;color:var(--ink-600);}
.pcard li svg{flex:0 0 auto;margin-top:5px;color:var(--accent-500);}
.pcard .p-btn{margin-top:26px;}
.pcard .p-btn .btn-cta,.pcard .p-btn .btn-outline{width:100%;}
.pcard--featured{position:relative;border:1.5px solid var(--brand-600);box-shadow:var(--sh-2);transform:translateY(-24px);}
.pcard--featured .ribbon{
  position:absolute;top:-1px;right:20px;background:var(--cta-500);color:#fff;
  font-size:13px;font-weight:600;line-height:1;padding:8px 14px;border-radius:0 0 10px 10px;
}
.price-note{font-size:13px;color:var(--ink-400);text-align:center;margin-top:40px;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto;}
.accordion-item{border:none;border-bottom:1px solid var(--line);background:transparent;}
.accordion-item:first-of-type,.accordion-item:last-of-type{border-radius:0;}
.accordion-button{
  position:relative;background:transparent;border:none;box-shadow:none !important;
  font-size:16px;font-weight:600;color:var(--ink-900);padding:20px 44px 20px 20px;
  line-height:1.6;transition:color .22s ease-out;
}
.accordion-button::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;background:var(--brand-600);transform:scaleY(0);transition:transform .22s ease-out;}
.accordion-button:not(.collapsed){color:var(--brand-600);background:transparent;}
.accordion-button:not(.collapsed)::before{transform:scaleY(1);}
.accordion-button:hover{color:var(--brand-600);}
.accordion-button::after{
  content:"";position:absolute;right:14px;top:50%;
  width:18px;height:18px;margin:0;transform:translateY(-50%);
  background-image:none;
  background:
    linear-gradient(var(--brand-600),var(--brand-600)) center/12px 2px no-repeat,
    linear-gradient(var(--brand-600),var(--brand-600)) center/2px 12px no-repeat;
  transition:transform .22s ease-out;
}
.accordion-button:not(.collapsed)::after{
  background:
    linear-gradient(var(--brand-600),var(--brand-600)) center/12px 2px no-repeat;
  transform:translateY(-50%) rotate(180deg);
}
.accordion-body{padding:0 44px 20px 20px;font-size:15px;line-height:1.85;color:var(--ink-600);}

/* ---------- 底部 CTA ---------- */
.cta-band{position:relative;background:var(--bg-1);overflow:hidden;}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-40px;width:520px;height:520px;
  background:url(/assets/images/backpic/back-2.png) center/cover no-repeat;
  opacity:.1;pointer-events:none;
}
.cta-inner{position:relative;z-index:1;text-align:center;max-width:720px;margin:0 auto;}
.cta-inner h2{font-size:32px;line-height:1.35;margin-bottom:14px;}
.cta-inner .cta-sub{font-size:15px;color:var(--ink-600);margin-bottom:28px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-800);color:rgba(255,255,255,.72);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.14);color:#fff;}
.site-footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);}
.site-footer h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.site-footer li{margin-bottom:12px;}
.site-footer a{font-size:14px;color:rgba(255,255,255,.72);position:relative;}
.site-footer a::after{content:"";position:absolute;left:0;bottom:-3px;width:100%;height:1px;background:#fff;transform:scaleX(0);transform-origin:left;transition:transform .22s ease-out;}
.site-footer a:hover{color:#fff;}
.site-footer a:hover::after{transform:scaleX(1);}
.social-row{display:flex;gap:10px;margin-top:18px;}
.social-row span{width:36px;height:36px;border-radius:var(--r-sm);border:1px solid rgba(255,255,255,.22);display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.72);transition:all .22s ease-out;cursor:pointer;}
.social-row span:hover{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.4);}
.footer-bottom{margin-top:56px;border-top:1px solid rgba(255,255,255,.16);padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.6);}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:1020;
  display:inline-flex;align-items:center;gap:10px;
  height:52px;padding:0 22px;border-radius:var(--r-pill);
  background:var(--cta-500);color:#fff;font-size:15px;font-weight:600;
  box-shadow:var(--sh-3);opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .26s ease-out, transform .26s ease-out, visibility .26s;
}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{background:var(--cta-600);color:#fff;}
.float-cta.hidden-by-form{opacity:0;visibility:hidden;transform:translateY(12px);}

/* ---------- 动画 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease-out, transform .5s ease-out;}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;transition:none;}
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1399px){
  .nav-search{display:none;}
  .drawer-search{display:block;}
}
@media (max-width:1199px){
  .hero h1{font-size:34px;}
  .section-head h2,.feature-sticky h2,.cta-inner h2{font-size:28px;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .partner-wall{grid-template-columns:repeat(3,1fr);}
}
@media (max-width:991px){
  :root{--sec-y:72px;}
  .nav-mid,.nav-search{display:none;}
  .nav-toggle{display:flex;}
  .nav-right .btn-outline{display:none;}
  .hero{padding:104px 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero-visual{padding-right:20px;padding-bottom:20px;}
  .feature-layout,.demo-grid{grid-template-columns:1fr;gap:32px;}
  .feature-sticky{position:static;}
  .quote-row{grid-template-columns:1fr;}
  .stat-row{grid-template-columns:repeat(2,1fr);}
  .stat-item:nth-child(2){border-right:none;}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid var(--line);}
  .price-grid{grid-template-columns:1fr;max-width:520px;margin:0 auto;}
  .pcard--featured{transform:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  :root{--sec-y:56px;}
  .hero h1{font-size:28px;}
  .hero .lede{font-size:16px;}
  .hero-trust{flex-direction:column;align-items:stretch;}
  .hero-trust .trust-item{border-right:none;border-bottom:1px solid var(--line);padding:12px 0;}
  .hero-trust .trust-item:last-child{border-bottom:none;}
  .fcard--wide{flex-direction:column;align-items:flex-start;}
  .fcard--wide img{width:100%;}
  .news-feature{grid-template-columns:1fr;}
  .news-feature img{min-height:0;}
  .news-feature .nf-body{padding:22px;}
  .news-grid{grid-template-columns:1fr;}
  .partner-wall{grid-template-columns:repeat(2,1fr);}
  .section-head h2,.feature-sticky h2,.cta-inner h2{font-size:24px;}
  .accordion-button{font-size:15px;padding:18px 40px 18px 16px;}
  .accordion-body{padding:0 40px 18px 16px;}
  .float-cta{
    left:0;right:0;bottom:0;height:auto;padding:14px 20px calc(14px + env(safe-area-inset-bottom));
    border-radius:16px 16px 0 0;justify-content:center;transform:translateY(100%);
  }
  .float-cta.show{transform:translateY(0);}
  .float-cta.hidden-by-form{transform:translateY(100%);}
  .footer-grid{grid-template-columns:1fr;}
  .cta-band::after{display:none;}
}
@media (max-width:575px){
  .hero{padding:96px 0 56px;}
  .hero-visual .mini-shot{width:52%;border-width:4px;}
  .hero-tag{display:none;}
  .stat-row{grid-template-columns:1fr;}
  .stat-item{border-right:none !important;border-bottom:1px solid var(--line);}
  .stat-item:last-child{border-bottom:none;}
  .partner-wall{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
}

/* roulang page: article */
:root{
  --brand-600:#1F63D8;
  --brand-800:#0F357F;
  --brand-50:#EEF4FF;
  --accent-500:#12B5A0;
  --cta-500:#FF6A2B;
  --cta-600:#F25A1A;
  --bg-0:#FFFFFF;
  --bg-1:#F5F8FD;
  --line:#E4ECF7;
  --ink-900:#0F1B33;
  --ink-600:#4A5A76;
  --ink-400:#8494AD;
  --ok:#16A34A;
  --warn:#D97706;
  --err:#DC2626;
  --r-xl:20px;
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;
  --sh-1:0 1px 2px rgba(15,27,51,.04), 0 8px 24px rgba(31,99,216,.06);
  --sh-2:0 16px 40px rgba(31,99,216,.12);
  --sh-3:0 12px 32px rgba(255,106,43,.28);

  --bs-primary:#1F63D8;
  --bs-body-bg:#FFFFFF;
  --bs-body-color:#4A5A76;
  --bs-body-font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,sans-serif;
  --bs-link-color:#1F63D8;
  --bs-link-hover-color:#0F357F;
  --bs-border-color:#E4ECF7;
  --bs-border-radius:10px;
  --bs-border-radius-lg:16px;
  --bs-gutter-x:24px;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;line-height:1.75;color:var(--ink-600);background:var(--bg-0);
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--brand-600);text-decoration:none;transition:color .22s ease-out;}
a:hover{color:var(--brand-800);}
h1,h2,h3,h4{color:var(--ink-900);margin:0;font-weight:600;letter-spacing:-0.01em;}
p{margin:0 0 16px;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:1400px){.container{max-width:1280px;}}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);transition:box-shadow .24s ease-out,background .24s ease-out;
}
.site-header.is-scrolled{box-shadow:var(--sh-1);background:rgba(255,255,255,.96);}
.header-inner{display:flex;align-items:center;gap:18px;height:68px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink-900);}
.brand:hover{color:var(--brand-600);}
.brand-mark{
  width:34px;height:34px;border-radius:var(--r-sm);background:var(--brand-50);color:var(--brand-600);
  display:inline-flex;align-items:center;justify-content:center;border:1px solid rgba(31,99,216,.16);
}
.brand-text{font-size:17px;font-weight:600;letter-spacing:-0.01em;}
.nav-mid{display:flex;align-items:center;gap:28px;margin-left:12px;flex:1 1 auto;}
.nav-mid a{
  position:relative;font-size:15px;font-weight:500;color:var(--ink-600);padding:6px 0;
}
.nav-mid a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--brand-600);transform:scaleX(0);transform-origin:center;transition:transform .24s ease-out;
}
.nav-mid a:hover{color:var(--brand-600);}
.nav-mid a:hover::after{transform:scaleX(1);}
.nav-mid a.active{color:var(--brand-600);}
.nav-mid a.active::after{transform:scaleX(1);}
.nav-right{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-search{position:relative;display:flex;align-items:center;}
.nav-search svg{position:absolute;left:14px;color:var(--ink-400);pointer-events:none;}
.nav-search input{
  width:200px;height:40px;border-radius:999px;border:1px solid var(--line);background:var(--bg-1);
  padding:0 16px 0 38px;font-size:14px;color:var(--ink-900);transition:border-color .2s ease-out,box-shadow .2s ease-out,background .2s ease-out;
}
.nav-search input::placeholder{color:var(--ink-400);}
.nav-search input:focus{outline:none;background:#fff;border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(31,99,216,.12);}
.btn-outline{
  display:inline-flex;align-items:center;justify-content:center;height:40px;padding:0 18px;
  border-radius:var(--r-sm);border:1.5px solid var(--brand-600);color:var(--brand-600);
  font-size:15px;font-weight:600;background:transparent;transition:background .2s ease-out,color .2s ease-out,border-color .2s ease-out;
}
.btn-outline:hover{background:rgba(31,99,216,.08);color:var(--brand-800);border-color:var(--brand-800);}
.btn-outline:active{background:rgba(31,99,216,.14);}
.btn-cta{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;height:40px;padding:0 20px;
  border-radius:var(--r-sm);background:var(--cta-500);color:#fff;font-size:15px;font-weight:600;border:none;
  transition:background .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out;
}
.btn-cta:hover{background:var(--cta-600);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-3);}
.btn-cta:active{transform:translateY(0);box-shadow:none;}
.btn-cta:focus-visible{outline:2px solid var(--cta-500);outline-offset:2px;box-shadow:0 0 0 2px #fff;}
.btn-cta-lg{height:52px;padding:0 28px;font-size:16px;border-radius:var(--r-md);}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:4px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink-900);border-radius:2px;transition:transform .2s ease-out;}
.nav-toggle:hover{border-color:rgba(31,99,216,.28);}
.mobile-drawer{
  position:fixed;inset:0 0 auto 0;z-index:1040;background:#fff;border-bottom:1px solid var(--line);
  box-shadow:var(--sh-2);transform:translateY(-100%);transition:transform .24s ease-out;padding:14px 0 20px;
}
.mobile-drawer.open{transform:translateY(0);}
.mobile-drawer .drawer-head{display:flex;align-items:center;justify-content:space-between;padding:2px 20px 10px;}
.mobile-drawer .drawer-head strong{font-size:16px;color:var(--ink-900);}
.drawer-close{
  width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--line);background:#fff;
  font-size:20px;line-height:1;color:var(--ink-600);cursor:pointer;
}
.drawer-close:hover{border-color:rgba(31,99,216,.28);color:var(--brand-600);}
.drawer-links a{
  display:flex;align-items:center;height:52px;padding:0 20px;font-size:15px;color:var(--ink-900);
  border-top:1px solid var(--line);
}
.drawer-links a:hover{color:var(--brand-600);background:var(--brand-50);}
.drawer-search{padding:12px 20px 0;}
.drawer-search input{
  width:100%;height:44px;border-radius:var(--r-sm);border:1px solid var(--line);background:var(--bg-1);
  padding:0 14px;font-size:15px;
}
.drawer-search input:focus{outline:none;background:#fff;border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(31,99,216,.12);}

/* ---------- 面包屑 ---------- */
.crumb-wrap{padding:20px 0;}
.crumb{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--ink-400);min-width:0;}
.crumb a{color:var(--brand-600);}
.crumb a:hover{text-decoration:underline;}
.crumb .sep{color:rgba(132,148,173,.55);}
.crumb .current{
  color:var(--ink-400);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:52vw;
}

/* ---------- 文章布局 ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px;padding-bottom:24px;}
.article-head{padding-bottom:22px;border-bottom:1px solid var(--line);}
.article-head h1{font-size:36px;line-height:1.35;max-width:820px;margin-bottom:16px;}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:14px;color:var(--ink-400);font-variant-numeric:tabular-nums;}
.badge-cat{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--brand-50);color:var(--brand-600);font-size:13px;font-weight:600;
}
.badge-soft{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:rgba(18,181,160,.15);color:#0B7C6C;font-size:13px;font-weight:600;
}
.article-cover{margin:28px 0 10px;}
.article-cover img{width:100%;height:480px;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--sh-1);background:var(--bg-1);}
.article-cover figcaption{margin-top:12px;text-align:center;font-size:13px;color:var(--ink-400);}

.article-body{max-width:780px;font-size:16px;line-height:1.85;color:var(--ink-600);padding-top:34px;}
.article-body p{margin:0 0 18px;}
.article-body h2{
  font-size:24px;line-height:1.45;margin:48px 0 16px;padding-left:14px;border-left:4px solid var(--brand-600);
}
.article-body h3{font-size:20px;line-height:1.5;margin:32px 0 12px;}
.article-body h4{font-size:17px;margin:24px 0 10px;}
.article-body ul{list-style:none;margin:0 0 20px;padding:0;}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:10px;}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:.66em;width:6px;height:6px;border-radius:50%;background:var(--brand-600);
}
.article-body ol{list-style:decimal;margin:0 0 20px;padding-left:22px;}
.article-body ol li{margin-bottom:10px;}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;background:var(--brand-50);border-left:3px solid var(--brand-600);
  border-radius:var(--r-md);color:var(--ink-900);
}
.article-body img{border-radius:var(--r-md);box-shadow:var(--sh-1);margin:22px 0 8px;}
.article-body a{color:var(--brand-600);border-bottom:1px solid rgba(31,99,216,.35);}
.article-body a:hover{color:var(--brand-800);border-bottom-color:var(--brand-800);}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;display:block;overflow-x:auto;}
.article-body th{
  background:var(--bg-1);text-align:left;font-weight:600;color:var(--ink-900);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:12px 14px;white-space:nowrap;
}
.article-body td{border-bottom:1px solid var(--line);padding:12px 14px;}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:14px;
  background:#F3F5F9;border-radius:10px;padding:2px 6px;color:var(--ink-900);
}
.article-body pre{
  background:#F3F5F9;border-radius:10px;padding:16px 18px;overflow-x:auto;margin:24px 0;font-size:14px;
}
.article-body pre code{background:none;padding:0;}

.empty-state{
  max-width:780px;margin-top:34px;padding:52px 24px;text-align:center;border:1px dashed var(--line);
  border-radius:var(--r-lg);background:var(--bg-1);
}
.empty-state .empty-icon{
  width:56px;height:56px;margin:0 auto 16px;border-radius:var(--r-md);background:#fff;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--brand-600);
}
.empty-state h2{font-size:20px;margin-bottom:8px;}
.empty-state p{font-size:14px;color:var(--ink-600);margin-bottom:20px;}

/* 文末 */
.article-tags{display:flex;flex-wrap:wrap;gap:10px;margin:40px 0 0;padding-top:24px;border-top:1px solid var(--line);max-width:780px;}
.tag-chip{
  display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:999px;
  border:1px solid var(--line);background:#fff;font-size:13px;color:var(--ink-600);transition:all .2s ease-out;
}
.tag-chip:hover{border-color:rgba(31,99,216,.35);color:var(--brand-600);background:var(--brand-50);}
.article-next{display:grid;grid-template-columns:1fr 1fr;gap:20px;max-width:780px;margin-top:26px;}
.next-card{
  display:flex;align-items:center;justify-content:space-between;gap:14px;padding:18px 20px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);
  color:var(--ink-900);transition:box-shadow .22s ease-out,border-color .22s ease-out,transform .22s ease-out;
}
.next-card:hover{box-shadow:var(--sh-2);border-color:rgba(31,99,216,.28);transform:translateY(-2px);color:var(--brand-600);}
.next-card .nc-label{display:block;font-size:13px;color:var(--ink-400);margin-bottom:4px;}
.next-card .nc-title{display:block;font-size:16px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.next-card svg{flex:0 0 auto;color:var(--brand-600);}
.article-actions{display:flex;gap:14px;margin-top:26px;max-width:780px;}

/* 侧栏 */
.article-side{position:relative;}
.side-sticky{position:sticky;top:100px;display:flex;flex-direction:column;gap:22px;}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:22px;}
.side-card h3{font-size:16px;margin-bottom:14px;}
.toc summary{
  font-size:16px;font-weight:600;color:var(--ink-900);cursor:pointer;list-style:none;
  display:flex;align-items:center;justify-content:space-between;
}
.toc summary::-webkit-details-marker{display:none;}
.toc summary::after{content:"＋";color:var(--brand-600);font-size:15px;}
.toc[open] summary::after{content:"－";}
.toc ol{list-style:none;margin:14px 0 0;padding:0;counter-reset:toc;}
.toc li{margin-bottom:10px;}
.toc a{
  display:block;font-size:14px;color:var(--ink-600);border-left:3px solid transparent;padding-left:10px;line-height:1.6;
  transition:all .2s ease-out;
}
.toc a:hover{color:var(--brand-600);border-left-color:rgba(31,99,216,.35);}
.toc a.current{color:var(--brand-600);border-left-color:var(--brand-600);font-weight:600;}
.side-note{font-size:14px;line-height:1.7;color:var(--ink-600);}
.side-note strong{color:var(--ink-900);}
.side-links{margin-top:14px;display:flex;flex-direction:column;gap:10px;}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;font-size:14px;color:var(--brand-600);
  padding:10px 0;border-bottom:1px dashed var(--line);
}
.side-links a:last-child{border-bottom:none;}
.side-links a:hover{color:var(--brand-800);}

/* 相关推荐 */
.related-section{padding:56px 0 8px;border-top:1px solid var(--line);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px;}
.section-head h2{font-size:26px;line-height:1.35;}
.section-head p{font-size:14px;color:var(--ink-400);margin:6px 0 0;}
.empty-box{
  border:1px dashed var(--line);border-radius:var(--r-lg);background:var(--bg-1);
  padding:40px 24px;text-align:center;
}
.empty-box .empty-icon{
  width:52px;height:52px;margin:0 auto 14px;border-radius:var(--r-md);background:#fff;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--brand-600);
}
.empty-box p{font-size:14px;margin-bottom:18px;}

/* CTA 带 */
.cta-band{background:var(--bg-1);padding:72px 0;margin-top:56px;}
.cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;}
.cta-inner h2{font-size:28px;line-height:1.4;margin-bottom:8px;}
.cta-inner p{font-size:15px;color:var(--ink-600);margin:0;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* 浮动 CTA */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:1020;display:inline-flex;align-items:center;gap:10px;
  height:52px;padding:0 22px;border-radius:999px;background:var(--cta-500);color:#fff;font-size:15px;font-weight:600;
  box-shadow:var(--sh-3);opacity:0;transform:translateY(12px);pointer-events:none;
  transition:opacity .24s ease-out,transform .24s ease-out,background .2s ease-out;
}
.float-cta.show{opacity:1;transform:translateY(0);pointer-events:auto;}
.float-cta:hover{background:var(--cta-600);color:#fff;}

/* 页脚 */
.site-footer{background:var(--brand-800);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding-bottom:44px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:600;margin-bottom:14px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.18);color:#fff;}
.site-footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);margin:0;}
.site-footer h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px;}
.site-footer ul li{margin-bottom:10px;}
.site-footer ul a{
  font-size:14px;color:rgba(255,255,255,.72);position:relative;padding-bottom:2px;
}
.site-footer ul a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:#fff;transition:width .24s ease-out;
}
.site-footer ul a:hover{color:#fff;}
.site-footer ul a:hover::after{width:100%;}
.social-row{display:flex;gap:12px;margin-top:18px;}
.social-row span{
  width:36px;height:36px;border-radius:var(--r-sm);border:1px solid rgba(255,255,255,.2);
  display:inline-flex;align-items:center;justify-content:center;color:rgba(255,255,255,.75);font-size:15px;
}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  border-top:1px solid rgba(255,255,255,.16);padding:20px 0 28px;font-size:13px;color:rgba(255,255,255,.6);
}

/* 入场动效 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease-out,transform .5s ease-out;}
.reveal.in{opacity:1;transform:none;}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:36px;}
  .article-side{order:2;}
  .side-sticky{position:static;}
  .article-cover img{height:400px;}
}
@media (max-width:991.98px){
  .nav-mid{display:none;}
  .nav-search{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{height:60px;}
  .article-head h1{font-size:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767.98px){
  .article-cover img{height:280px;}
  .article-next{grid-template-columns:1fr;}
  .article-actions{flex-direction:column;}
  .article-actions .btn-outline,.article-actions .btn-cta{width:100%;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .float-cta{
    left:16px;right:16px;bottom:16px;justify-content:center;border-radius:16px 16px 16px 16px;
    padding-bottom:env(safe-area-inset-bottom);
  }
  .section-head{flex-direction:column;align-items:flex-start;}
}
@media (max-width:575.98px){
  .container{padding:0 18px;}
  .article-head h1{font-size:24px;line-height:1.4;}
  .article-body h2{font-size:21px;}
  .article-body h3{font-size:18px;}
  .article-cover img{height:220px;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-inner h2{font-size:22px;}
  .crumb .current{max-width:40vw;}
}

/* roulang page: category1 */
:root{
  --brand-600:#1F63D8;
  --brand-800:#0F357F;
  --brand-50:#EEF4FF;
  --accent-500:#12B5A0;
  --cta-500:#FF6A2B;
  --cta-600:#F25A1A;
  --bg-0:#FFFFFF;
  --bg-1:#F5F8FD;
  --line:#E4ECF7;
  --ink-900:#0F1B33;
  --ink-600:#4A5A76;
  --ink-400:#8494AD;
  --ok:#16A34A;
  --warn:#D97706;
  --err:#DC2626;
  --sh-1:0 1px 2px rgba(15,27,51,.04), 0 8px 24px rgba(31,99,216,.06);
  --sh-2:0 16px 40px rgba(31,99,216,.12);
  --sh-3:0 12px 32px rgba(255,106,43,.28);
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;
  --nav-h:68px;
  --bs-primary:#1F63D8;
  --bs-body-bg:#FFFFFF;
  --bs-body-color:#4A5A76;
  --bs-body-font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,sans-serif;
  --bs-link-color:#1F63D8;
  --bs-link-hover-color:#0F357F;
  --bs-border-color:#E4ECF7;
  --bs-border-radius:10px;
  --bs-border-radius-lg:16px;
  --bs-gutter-x:24px;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--ink-600);
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{color:var(--ink-900);margin:0;font-weight:600;}
h1{font-size:40px;line-height:1.25;letter-spacing:-0.01em;}
h2{font-size:32px;line-height:1.35;}
h3{font-size:20px;line-height:1.5;}
h4{font-size:17px;line-height:1.5;}
p{margin:0 0 18px;text-align:left;}
p:last-child{margin-bottom:0;}
a{color:var(--brand-600);text-decoration:none;transition:color .2s ease-out;}
a:hover{color:var(--brand-800);}
a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--brand-600);
  outline-offset:2px;
  border-radius:6px;
}
img{max-width:100%;display:block;}
ul{margin:0;padding:0;}
.container{
  max-width:1200px;
  padding-left:20px;
  padding-right:20px;
  margin:0 auto;
}
@media (min-width:1400px){
  .container{max-width:1280px;}
}
.num{font-variant-numeric:tabular-nums;}
section{scroll-margin-top:150px;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  transition:box-shadow .24s ease-out, background .24s ease-out;
}
.site-header.is-scrolled{
  box-shadow:var(--sh-1);
  background:rgba(255,255,255,.98);
}
.nav-wrap{
  display:flex;
  align-items:center;
  gap:24px;
  height:var(--nav-h);
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:18px;
  font-weight:700;
  color:var(--brand-800);
  letter-spacing:-0.01em;
  white-space:nowrap;
}
.brand:hover{color:var(--brand-600);}
.brand-mark{
  width:34px;height:34px;
  border-radius:10px;
  background:var(--brand-50);
  color:var(--brand-600);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  flex:0 0 auto;
}
.nav-mid{
  display:flex;
  align-items:center;
  gap:28px;
  margin-left:8px;
}
.nav-mid a{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--ink-600);
  padding:6px 0;
  white-space:nowrap;
}
.nav-mid a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-1px;
  height:2px;
  background:var(--brand-600);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .24s ease-out;
  border-radius:2px;
}
.nav-mid a:hover{color:var(--brand-600);}
.nav-mid a:hover::after{transform:scaleX(1);}
.nav-mid a.active{color:var(--brand-600);}
.nav-mid a.active::after{transform:scaleX(1);}
.nav-right{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:12px;
}
.search-box{
  position:relative;
  width:200px;
  flex:0 0 auto;
}
.search-box svg{
  position:absolute;
  left:14px;top:50%;
  transform:translateY(-50%);
  color:var(--ink-400);
  pointer-events:none;
}
.search-box input{
  width:100%;
  height:40px;
  border-radius:999px;
  border:1px solid var(--line);
  background:var(--bg-1);
  padding:0 14px 0 38px;
  font-size:14px;
  color:var(--ink-900);
  transition:border-color .2s ease-out, box-shadow .2s ease-out, background .2s ease-out;
}
.search-box input::placeholder{color:var(--ink-400);}
.search-box input:focus{
  outline:none;
  background:#fff;
  border-color:var(--brand-600);
  box-shadow:0 0 0 3px rgba(31,99,216,.12);
}
.btn-outline{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:40px;
  padding:0 18px;
  border-radius:var(--r-sm);
  border:1.5px solid var(--brand-600);
  background:transparent;
  color:var(--brand-600);
  font-size:15px;
  font-weight:600;
  line-height:1;
  transition:background .2s ease-out, color .2s ease-out, transform .2s ease-out;
  white-space:nowrap;
  cursor:pointer;
}
.btn-outline:hover{
  background:rgba(31,99,216,.08);
  color:var(--brand-800);
  border-color:var(--brand-800);
}
.btn-outline:active{transform:translateY(1px);}
.btn-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:40px;
  padding:0 20px;
  border-radius:var(--r-sm);
  border:1.5px solid transparent;
  background:var(--cta-500);
  color:#fff;
  font-size:15px;
  font-weight:600;
  line-height:1;
  transition:background .2s ease-out, transform .2s ease-out, box-shadow .2s ease-out;
  white-space:nowrap;
  cursor:pointer;
}
.btn-cta:hover{
  background:var(--cta-600);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:var(--sh-3);
}
.btn-cta:active{transform:translateY(0);}
.btn-cta:focus-visible{outline:2px solid var(--cta-500);outline-offset:2px;}
.btn-cta.is-lg{height:52px;padding:0 28px;font-size:16px;border-radius:var(--r-sm);}
.btn-text{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:600;
  color:var(--brand-600);
}
.btn-text svg{transition:transform .2s ease-out;}
.btn-text:hover svg{transform:translateX(4px);}
.nav-toggler{
  display:none;
  width:44px;height:44px;
  border:0;
  background:transparent;
  padding:0;
  cursor:pointer;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
}
.nav-toggler span{
  display:block;
  width:20px;height:2px;
  border-radius:2px;
  background:var(--ink-900);
  transition:transform .2s ease-out, opacity .2s ease-out;
}

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1040;
  background:#fff;
  transform:translateY(-100%);
  transition:transform .24s ease-out;
  padding:16px 20px 28px;
  box-shadow:var(--sh-2);
  max-height:100vh;
  overflow-y:auto;
}
.drawer.is-open{transform:translateY(0);}
.drawer-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:44px;
  margin-bottom:8px;
}
.drawer-close{
  width:44px;height:44px;
  border:0;background:transparent;
  font-size:26px;
  line-height:1;
  color:var(--ink-600);
  cursor:pointer;
  border-radius:var(--r-sm);
}
.drawer-close:hover{background:var(--bg-1);color:var(--brand-600);}
.drawer-nav{display:grid;}
.drawer-nav a{
  display:flex;
  align-items:center;
  min-height:52px;
  font-size:16px;
  font-weight:500;
  color:var(--ink-600);
  border-bottom:1px solid var(--line);
}
.drawer-nav a.active{color:var(--brand-600);font-weight:600;}
.drawer-nav a:hover{color:var(--brand-600);}
.drawer-search{
  position:relative;
  margin-top:18px;
}
.drawer-search input{
  width:100%;
  height:44px;
  border-radius:999px;
  border:1px solid var(--line);
  background:var(--bg-1);
  padding:0 16px;
  font-size:15px;
}
.drawer-search input:focus{
  outline:none;
  border-color:var(--brand-600);
  box-shadow:0 0 0 3px rgba(31,99,216,.12);
}
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(15,27,51,.36);
  z-index:1038;
  opacity:0;
  pointer-events:none;
  transition:opacity .24s ease-out;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}

/* ---------- 页头 Banner ---------- */
.page-banner{
  position:relative;
  background:var(--bg-1);
  border-bottom:1px solid var(--line);
  padding:44px 0 40px;
  min-height:240px;
  overflow:hidden;
}
.page-banner::before{
  content:"";
  position:absolute;
  right:-120px;top:-80px;
  width:520px;height:520px;
  border-radius:50%;
  border:1px solid rgba(31,99,216,.12);
  pointer-events:none;
}
.page-banner::after{
  content:"";
  position:absolute;
  right:40px;bottom:-160px;
  width:320px;height:320px;
  border-radius:50%;
  border:1px solid rgba(18,181,160,.18);
  pointer-events:none;
}
.page-banner .container{position:relative;z-index:2;}
.breadcrumb-x{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--ink-400);
  margin-bottom:18px;
  flex-wrap:wrap;
}
.breadcrumb-x a{color:var(--brand-600);}
.breadcrumb-x a:hover{color:var(--brand-800);}
.breadcrumb-x .sep{color:rgba(15,27,51,.25);}
.page-banner h1{
  max-width:820px;
  margin-bottom:14px;
}
.page-banner .lead{
  max-width:640px;
  font-size:16px;
  color:var(--ink-600);
  margin:0;
}
.banner-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:22px;
}
.tag{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:999px;
  background:var(--brand-50);
  color:var(--brand-600);
  font-size:13px;
  font-weight:500;
  line-height:1;
}
.tag.is-accent{
  background:rgba(18,181,160,.15);
  color:#0B7D6E;
}

/* ---------- 粘性子导航 ---------- */
.subnav{
  position:sticky;
  top:var(--nav-h);
  z-index:1020;
  background:rgba(255,255,255,.95);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  padding:12px 0;
}
.subnav-inner{
  display:flex;
  gap:10px;
  overflow-x:auto;
  scrollbar-width:none;
}
.subnav-inner::-webkit-scrollbar{display:none;}
.subnav-inner a{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 18px;
  border-radius:999px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink-600);
  font-size:14px;
  font-weight:500;
  transition:background .2s ease-out, color .2s ease-out, border-color .2s ease-out;
}
.subnav-inner a:hover{color:var(--brand-600);border-color:rgba(31,99,216,.35);}
.subnav-inner a.active{
  background:var(--brand-600);
  border-color:var(--brand-600);
  color:#fff;
}

/* ---------- 图文交替区 ---------- */
.section{
  padding:96px 0;
}
.section-head{
  max-width:760px;
  margin-bottom:40px;
}
.section-head .eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  color:var(--brand-600);
  letter-spacing:0;
  margin-bottom:14px;
}
.section-head .eyebrow::before{
  content:"";
  width:20px;height:2px;
  background:var(--brand-600);
  border-radius:2px;
}
.section-head p{
  margin-top:14px;
  font-size:16px;
  color:var(--ink-600);
}
.feature-row{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:56px;
  align-items:center;
  padding:48px 0;
  border-bottom:1px solid var(--line);
}
.feature-row:first-of-type{padding-top:8px;}
.feature-row:last-of-type{border-bottom:0;padding-bottom:8px;}
.feature-row.reverse .row-text{order:2;}
.feature-row.reverse .row-media{order:1;}
.row-text h2{margin-bottom:18px;}
.row-text p{color:var(--ink-600);}
.row-text .btn-text{margin-top:22px;}
.row-media{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:12px;
  box-shadow:var(--sh-1);
  transition:box-shadow .24s ease-out, border-color .24s ease-out, transform .24s ease-out;
}
.row-media:hover{
  box-shadow:var(--sh-2);
  border-color:rgba(31,99,216,.28);
  transform:translateY(-2px);
}
.row-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:12px;
}
.row-media .media-cap{
  font-size:13px;
  color:var(--ink-400);
  padding:10px 4px 4px;
  line-height:1.5;
}

/* ---------- 数据条 ---------- */
.stat-strip{
  background:var(--bg-1);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:48px 0;
}
.stat-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
}
.stat-item{
  padding:0 28px;
  border-left:1px solid var(--line);
}
.stat-item:first-child{border-left:0;padding-left:0;}
.stat-item .stat-no{
  font-size:13px;
  font-weight:600;
  color:var(--accent-500);
  font-variant-numeric:tabular-nums;
  letter-spacing:0;
}
.stat-item h3{
  font-size:20px;
  margin:8px 0 8px;
}
.stat-item p{
  font-size:14px;
  color:var(--ink-600);
  margin:0;
}

/* ---------- 引用带 ---------- */
.quote-band{
  background:var(--bg-1);
  padding:56px 0;
}
.quote-band .inner{
  background:#fff;
  border:1px solid var(--line);
  border-left:4px solid var(--brand-600);
  border-radius:var(--r-lg);
  padding:32px 36px;
  box-shadow:var(--sh-1);
}
.quote-band .inner > h2{
  font-size:22px;
  margin-bottom:8px;
}
.quote-band .inner > p{
  font-size:15px;
  color:var(--ink-600);
  margin-bottom:22px;
}
.check-list{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:14px 32px;
  list-style:none;
}
.check-list li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:15px;
  color:var(--ink-900);
  line-height:1.6;
}
.check-list li::before{
  content:"";
  flex:0 0 auto;
  width:18px;height:18px;
  margin-top:4px;
  border-radius:50%;
  background:rgba(18,181,160,.15);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%230B7D6E' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
  background-repeat:no-repeat;
  background-position:center;
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto;}
.accordion-item{
  border:0;
  border-bottom:1px solid var(--line);
  background:transparent;
}
.accordion-item:last-child{border-bottom:0;}
.accordion-button{
  background:transparent;
  box-shadow:none;
  padding:20px 4px;
  font-size:16px;
  font-weight:600;
  color:var(--ink-900);
  border-radius:0;
  position:relative;
}
.accordion-button::before{
  content:"";
  position:absolute;
  left:-14px;top:16px;bottom:16px;
  width:3px;
  border-radius:3px;
  background:var(--brand-600);
  opacity:0;
  transition:opacity .2s ease-out;
}
.accordion-button:not(.collapsed)::before{opacity:1;}
.accordion-button:not(.collapsed){
  color:var(--brand-600);
  background:transparent;
  box-shadow:none;
}
.accordion-button:hover{color:var(--brand-600);}
.accordion-button:focus{
  box-shadow:none;
  border-color:transparent;
}
.accordion-button::after{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' viewBox='0 0 24 24' fill='none' stroke='%231F63D8' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M12 5v14M5 12h14'/%3E%3C/svg%3E");
  background-size:18px;
  width:18px;height:18px;
  transition:transform .2s ease-out;
}
.accordion-button:not(.collapsed)::after{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' viewBox='0 0 24 24' fill='none' stroke='%231F63D8' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M5 12h14'/%3E%3C/svg%3E");
  transform:rotate(180deg);
}
.accordion-body{
  padding:0 4px 22px;
  font-size:15px;
  line-height:1.8;
  color:var(--ink-600);
}

/* ---------- 继续浏览 + CTA 带 ---------- */
.next-card{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:28px 32px;
  box-shadow:var(--sh-1);
  transition:box-shadow .24s ease-out, border-color .24s ease-out, transform .24s ease-out;
}
.next-card:hover{
  box-shadow:var(--sh-2);
  border-color:rgba(31,99,216,.28);
  transform:translateY(-2px);
}
.next-card .next-label{
  font-size:13px;
  font-weight:600;
  color:var(--accent-500);
  margin-bottom:6px;
}
.next-card h3{font-size:20px;margin-bottom:6px;color:var(--ink-900);}
.next-card p{font-size:14px;color:var(--ink-600);margin:0;}
.next-card .next-arrow{
  flex:0 0 auto;
  width:44px;height:44px;
  border-radius:50%;
  background:var(--brand-50);
  color:var(--brand-600);
  display:grid;
  place-items:center;
  transition:transform .2s ease-out, background .2s ease-out;
}
.next-card:hover .next-arrow{transform:translateX(4px);background:rgba(31,99,216,.16);}

.cta-band{
  background:var(--bg-1);
  border-top:1px solid var(--line);
  padding:72px 0;
  text-align:center;
  position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;
  left:-140px;bottom:-200px;
  width:480px;height:480px;
  border-radius:50%;
  border:1px solid rgba(31,99,216,.10);
}
.cta-band .inner{position:relative;z-index:2;max-width:720px;margin:0 auto;}
.cta-band h2{margin-bottom:14px;}
.cta-band p{
  font-size:15px;
  color:var(--ink-600);
  margin-bottom:28px;
  text-align:center;
}
.cta-actions{
  display:flex;
  gap:14px;
  justify-content:center;
  flex-wrap:wrap;
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--brand-800);
  color:rgba(255,255,255,.72);
  padding:72px 0 0;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:18px;
  font-weight:700;
  color:#fff;
  margin-bottom:16px;
}
.site-footer .brand-mark{
  background:rgba(255,255,255,.12);
  color:#fff;
}
.site-footer p{
  font-size:14px;
  line-height:1.75;
  color:rgba(255,255,255,.72);
  max-width:340px;
}
.site-footer h4{
  font-size:15px;
  font-weight:600;
  color:#fff;
  margin-bottom:16px;
}
.site-footer ul{
  list-style:none;
  display:grid;
  gap:10px;
}
.site-footer ul a{
  position:relative;
  font-size:14px;
  color:rgba(255,255,255,.72);
  display:inline-block;
}
.site-footer ul a::after{
  content:"";
  position:absolute;
  left:0;bottom:-2px;
  height:2px;width:100%;
  background:#fff;
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .22s ease-out;
}
.site-footer ul a:hover{color:#fff;}
.site-footer ul a:hover::after{transform:scaleX(1);}
.social-row{
  display:flex;
  gap:10px;
  margin-top:20px;
}
.social-row span{
  width:36px;height:36px;
  border-radius:10px;
  background:rgba(255,255,255,.10);
  color:rgba(255,255,255,.82);
  display:grid;
  place-items:center;
  font-size:15px;
  transition:background .2s ease-out, color .2s ease-out;
  cursor:default;
}
.social-row span:hover{background:rgba(255,255,255,.2);color:#fff;}
.footer-bottom{
  margin-top:56px;
  border-top:1px solid rgba(255,255,255,.16);
  padding:22px 0;
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(255,255,255,.62);
}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;
  right:28px;
  bottom:28px;
  z-index:1020;
  display:inline-flex;
  align-items:center;
  gap:10px;
  height:52px;
  padding:0 22px;
  border-radius:999px;
  background:var(--cta-500);
  color:#fff;
  font-size:15px;
  font-weight:600;
  box-shadow:var(--sh-3);
  opacity:0;
  transform:translateY(12px);
  pointer-events:none;
  transition:opacity .24s ease-out, transform .24s ease-out, background .2s ease-out;
}
.float-cta:hover{background:var(--cta-600);color:#fff;transform:translateY(-1px);}
.float-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .search-box{width:160px;}
  .nav-mid{gap:20px;}
  .feature-row{gap:40px;}
}
@media (max-width:991px){
  .nav-mid{display:none;}
  .search-box{display:none;}
  .nav-toggler{display:flex;}
  .page-banner{min-height:200px;padding:32px 0;}
  h1{font-size:32px;}
  h2{font-size:26px;}
  .section{padding:64px 0;}
  .feature-row{
    grid-template-columns:1fr;
    gap:28px;
    padding:36px 0;
  }
  .feature-row.reverse .row-text{order:1;}
  .feature-row.reverse .row-media{order:2;}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:32px 0;}
  .stat-item:nth-child(3){border-left:0;padding-left:0;}
  .stat-item{padding:0 20px;}
  .check-list{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .subnav{top:60px;}
}
@media (max-width:767px){
  :root{--nav-h:60px;}
  .nav-wrap{gap:12px;}
  .brand{font-size:16px;}
  .brand-mark{width:30px;height:30px;}
  .btn-outline{display:none;}
  .btn-cta{height:38px;padding:0 16px;font-size:14px;}
  .page-banner{min-height:160px;padding:26px 0 28px;}
  .banner-tags{margin-top:18px;}
  h1{font-size:28px;line-height:1.3;}
  h2{font-size:24px;line-height:1.4;}
  h3{font-size:19px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:24px;}
  .row-media{padding:10px;}
  .quote-band{padding:40px 0;}
  .quote-band .inner{padding:24px 20px;}
  .cta-band{padding:56px 0;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;}
  .float-cta{
    left:16px;
    right:16px;
    bottom:calc(12px + env(safe-area-inset-bottom));
    height:50px;
    justify-content:center;
    opacity:1;
    transform:none;
    pointer-events:auto;
  }
  .float-cta.is-hidden-mobile{opacity:0;pointer-events:none;transform:translateY(12px);}
  body{padding-bottom:76px;}
  .next-card{padding:22px 20px;flex-direction:column;align-items:flex-start;gap:18px;}
  .next-card .next-arrow{display:none;}
}
@media (max-width:520px){
  .container{padding-left:16px;padding-right:16px;}
  .stat-grid{grid-template-columns:1fr;gap:24px;}
  .stat-item{border-left:0;padding-left:0;border-top:1px solid var(--line);padding-top:20px;}
  .stat-item:first-child{border-top:0;padding-top:0;}
  .cta-actions .btn-cta,.cta-actions .btn-outline{width:100%;}
  .cta-actions .btn-outline{display:inline-flex;}
}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    transition-duration:.001ms !important;
  }
  .row-media:hover,.next-card:hover,.btn-cta:hover,.float-cta:hover{transform:none;}
}

/* roulang page: category2 */
:root{
  --brand-600:#1F63D8;
  --brand-800:#0F357F;
  --brand-50:#EEF4FF;
  --accent-500:#12B5A0;
  --cta-500:#FF6A2B;
  --cta-600:#F25A1A;
  --bg-0:#FFFFFF;
  --bg-1:#F5F8FD;
  --line:#E4ECF7;
  --ink-900:#0F1B33;
  --ink-600:#4A5A76;
  --ink-400:#8494AD;
  --ok:#16A34A;
  --warn:#D97706;
  --err:#DC2626;
  --r-hero:20px;
  --r-card:16px;
  --r-mid:14px;
  --r-sm:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,27,51,.04), 0 8px 24px rgba(31,99,216,.06);
  --sh-2:0 16px 40px rgba(31,99,216,.12);
  --sh-3:0 12px 32px rgba(255,106,43,.28);
  --sec-y:96px;
  --sec-y-m:56px;

  --bs-primary:#1F63D8;
  --bs-primary-rgb:31,99,216;
  --bs-body-bg:#FFFFFF;
  --bs-body-color:#0F1B33;
  --bs-body-font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,sans-serif;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,sans-serif;
  --bs-link-color:#1F63D8;
  --bs-link-hover-color:#0F357F;
  --bs-border-color:#E4ECF7;
  --bs-border-radius:10px;
  --bs-border-radius-lg:16px;
  --bs-gutter-x:24px;
  --bs-secondary-color:#4A5A76;
  --bs-emphasis-color:#0F1B33;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:84px;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink-900);
  background:var(--bg-0);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
h1,h2,h3,h4,p,ul,ol,dl,dd,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
a{color:var(--brand-600);text-decoration:none;transition:color .22s ease-out,background-color .22s ease-out;}
a:hover{color:var(--brand-800);}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;border-radius:6px;}
.num,.stat-dd,.tl-index,.footer-bottom span{font-variant-numeric:tabular-nums;}

.container,.container-fluid{--bs-gutter-x:24px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media (min-width:1200px){.container{max-width:1200px;}}
@media (min-width:1400px){.container{max-width:1280px;}}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.98);
  border-bottom:1px solid var(--line);
  transition:box-shadow .24s ease-out,background-color .24s ease-out;
}
.site-header.is-stuck{box-shadow:var(--sh-1);background:rgba(255,255,255,.96);}
.nav-inner{display:flex;align-items:center;gap:22px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--brand-800);white-space:nowrap;}
.brand:hover{color:var(--brand-600);}
.brand-mark{
  width:34px;height:34px;border-radius:var(--r-btn);
  background:var(--brand-50);color:var(--brand-600);
  display:grid;place-items:center;flex:0 0 34px;
}
.nav-mid{display:flex;align-items:center;gap:28px;margin-left:6px;}
.nav-mid a{
  position:relative;display:inline-block;
  font-size:15px;font-weight:500;color:var(--ink-600);padding:6px 0;
}
.nav-mid a::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;
  background:var(--brand-600);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease-out;
}
.nav-mid a:hover{color:var(--brand-600);}
.nav-mid a:hover::after,.nav-mid a.active::after{transform:scaleX(1);}
.nav-mid a.active{color:var(--brand-600);font-weight:600;}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px;}
.search-box{position:relative;display:flex;align-items:center;}
.search-box svg{position:absolute;left:14px;color:var(--ink-400);pointer-events:none;}
.search-box input{
  width:200px;height:40px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:var(--bg-1);
  padding:0 16px 0 38px;font-size:14px;color:var(--ink-900);
  transition:border-color .2s ease-out,box-shadow .2s ease-out,background-color .2s ease-out;
}
.search-box input::placeholder{color:var(--ink-400);}
.search-box input:focus{
  outline:none;background:#fff;border-color:var(--brand-600);
  box-shadow:0 0 0 3px rgba(31,99,216,.12);
}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;
  height:40px;padding:0 16px;border-radius:var(--r-btn);
  border:1.5px solid var(--brand-600);color:var(--brand-600);
  font-size:15px;font-weight:600;background:transparent;
  transition:background-color .2s ease-out,color .2s ease-out,transform .2s ease-out;
}
.btn-ghost:hover{background:rgba(31,99,216,.08);color:var(--brand-600);}
.btn-ghost:active{transform:translateY(1px);}
.btn-ghost:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:#fff;color:var(--ink-900);
  align-items:center;justify-content:center;cursor:pointer;
  transition:border-color .2s ease-out,background-color .2s ease-out;
}
.nav-toggle:hover{border-color:rgba(31,99,216,.4);background:var(--brand-50);}

/* ============ 按钮体系 ============ */
.btn-cta{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  background:var(--cta-500);color:#fff;font-size:15px;font-weight:600;
  border:1px solid transparent;box-shadow:0 4px 14px rgba(255,106,43,.22);
  transition:background-color .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out;
}
.btn-cta:hover{background:var(--cta-600);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-3);}
.btn-cta:active{transform:translateY(0);box-shadow:0 2px 8px rgba(255,106,43,.24);}
.btn-cta:focus-visible{outline:2px solid var(--cta-500);outline-offset:2px;}
.btn-cta-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-outline{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  border:1.5px solid var(--brand-600);color:var(--brand-600);
  background:transparent;font-size:15px;font-weight:600;
  transition:background-color .2s ease-out,color .2s ease-out,transform .2s ease-out;
}
.btn-outline:hover{background:rgba(31,99,216,.08);color:var(--brand-600);transform:translateY(-1px);}
.btn-outline:active{transform:translateY(0);}
.btn-outline:focus-visible{outline:2px solid var(--brand-600);outline-offset:2px;}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand-600);}
.btn-text svg{transition:transform .22s ease-out;}
.btn-text:hover svg{transform:translateX(4px);}

/* ============ 移动端抽屉 ============ */
.mobile-drawer{
  position:fixed;left:0;right:0;top:60px;z-index:1040;
  background:#fff;border-bottom:1px solid var(--line);
  box-shadow:var(--sh-2);padding:8px 20px 20px;
  transform:translateY(-12px);opacity:0;visibility:hidden;
  transition:transform .24s ease-out,opacity .24s ease-out,visibility .24s;
}
.mobile-drawer.open{transform:translateY(0);opacity:1;visibility:visible;}
.mobile-drawer a{
  display:flex;align-items:center;min-height:52px;
  font-size:15px;font-weight:500;color:var(--ink-600);
  border-bottom:1px solid var(--line);
}
.mobile-drawer a:last-of-type{border-bottom:0;}
.mobile-drawer a.active{color:var(--brand-600);font-weight:600;}
.mobile-search{position:relative;display:flex;align-items:center;margin:12px 0 4px;}
.mobile-search svg{position:absolute;left:14px;color:var(--ink-400);}
.mobile-search input{
  width:100%;height:44px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:var(--bg-1);
  padding:0 16px 0 40px;font-size:14px;
}
.mobile-search input:focus{outline:none;background:#fff;border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(31,99,216,.12);}

/* ============ 页头 Banner ============ */
.page-banner{
  position:relative;overflow:hidden;
  background:var(--bg-1);border-bottom:1px solid var(--line);
  padding:44px 0;min-height:240px;display:flex;align-items:center;
}
.page-banner::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(31,99,216,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(31,99,216,.05) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:linear-gradient(90deg,rgba(0,0,0,.9),rgba(0,0,0,0));
  -webkit-mask-image:linear-gradient(90deg,rgba(0,0,0,.9),rgba(0,0,0,0));
}
.page-banner::after{
  content:"";position:absolute;right:-120px;top:-160px;width:460px;height:460px;
  border:1.5px solid rgba(31,99,216,.14);border-radius:50%;
}
.page-banner .container{position:relative;z-index:1;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-400);margin-bottom:14px;}
.crumb a{color:var(--brand-600);}
.crumb a:hover{color:var(--brand-800);}
.crumb .sep{color:rgba(31,99,216,.35);}
.crumb .current{color:var(--ink-400);}
.page-banner h1{
  font-size:34px;line-height:1.25;font-weight:700;letter-spacing:-.01em;
  color:var(--brand-800);margin-bottom:12px;max-width:820px;
}
.banner-sub{font-size:15px;color:var(--ink-600);max-width:660px;}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
.chip{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-pill);background:#fff;border:1px solid var(--line);
  color:var(--brand-600);font-size:13px;font-weight:500;
}
.chip-accent{background:rgba(18,181,160,.12);border-color:transparent;color:#0E8375;}

/* ============ 过渡图带 ============ */
.band-photo{
  height:320px;
  background-image:linear-gradient(rgba(31,99,216,.08),rgba(31,99,216,.08)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}

/* ============ 通用板块 ============ */
.section{padding:var(--sec-y) 0;}
.section-alt{background:var(--bg-1);}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head h2{
  font-size:32px;line-height:1.35;font-weight:700;letter-spacing:-.01em;
  color:var(--brand-800);margin-bottom:14px;
}
.section-head p{font-size:15px;color:var(--ink-600);}
.section-head .btn-text{margin-top:18px;}

/* ============ 编号列表 ============ */
.num-list{position:relative;}
.num-list::before{
  content:"";position:absolute;left:31px;top:32px;bottom:32px;width:1px;
  background:var(--line);
}
.num-item{
  position:relative;display:grid;grid-template-columns:64px 1fr 180px;
  gap:28px;padding:28px 0;border-bottom:1px solid var(--line);align-items:start;
  transition:transform .22s ease-out;
}
.num-item:first-child{padding-top:8px;}
.num-item:last-child{border-bottom:0;}
.num-item:hover{transform:translateY(-2px);}
.num-index{
  font-size:40px;font-weight:700;line-height:1;color:#C6D8F6;
  background:#fff;padding:2px 0;position:relative;z-index:1;text-align:center;
  transition:color .22s ease-out;
}
.num-item:hover .num-index{color:var(--brand-600);}
.num-body h3{font-size:19px;font-weight:600;line-height:1.5;color:var(--ink-900);margin-bottom:8px;}
.num-body p{font-size:15px;color:var(--ink-600);}
.num-body p + p{margin-top:6px;}
.num-thumb img{
  width:100%;height:132px;object-fit:cover;border-radius:var(--r-sm);
  border:1px solid var(--line);
}

/* ============ 数据条 ============ */
.stat-band{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:36px 0;}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.stat-item{padding:0 24px;border-left:1px solid var(--line);}
.stat-item:first-child{border-left:0;padding-left:0;}
.stat-item:last-child{padding-right:0;}
.stat-dt{font-size:13px;color:var(--ink-400);margin-bottom:8px;}
.stat-dd{
  font-size:30px;font-weight:700;line-height:1.2;color:var(--brand-600);
}
.stat-note{margin-top:8px;font-size:14px;color:var(--ink-600);}

/* ============ 状态时间线 ============ */
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:0;}
.tl-item{position:relative;padding-right:24px;}
.tl-top{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.tl-dot{
  width:12px;height:12px;border-radius:50%;background:var(--brand-600);
  box-shadow:0 0 0 4px var(--brand-50);flex:0 0 12px;
}
.tl-line{flex:1;height:1px;background:var(--line);}
.tl-item:last-child .tl-line{display:none;}
.tl-step{font-size:13px;font-weight:600;color:var(--accent-500);letter-spacing:.02em;}
.tl-item h3{font-size:17px;font-weight:600;color:var(--ink-900);margin-bottom:8px;}
.tl-item p{font-size:14px;color:var(--ink-600);}

/* ============ 图文交替 ============ */
.split{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
}
.split + .split{margin-top:72px;}
.split-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-mid);border:1px solid var(--line);box-shadow:var(--sh-1);
}
.split.reverse .split-media{order:2;}
.split-body h2{font-size:26px;line-height:1.4;font-weight:700;color:var(--brand-800);margin-bottom:14px;}
.split-body p{font-size:15px;color:var(--ink-600);}
.split-body p + p{margin-top:12px;}
.split-body .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px;}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:var(--r-pill);background:var(--brand-50);color:var(--brand-600);
  font-size:13px;font-weight:500;
}
.split-body .btn-text{margin-top:20px;}

/* ============ FAQ ============ */
.faq-wrap{max-width:880px;margin:0 auto;}
.faq .accordion-item{border:0;border-bottom:1px solid var(--line);background:#fff;}
.faq .accordion-item:first-child{border-top:1px solid var(--line);}
.faq .accordion-header{margin:0;font-size:inherit;}
.faq .accordion-button{
  position:relative;width:100%;background:#fff;border-radius:0;
  padding:20px 44px 20px 20px;font-size:16px;font-weight:600;
  color:var(--ink-900);box-shadow:none;line-height:1.6;
  transition:color .2s ease-out,background-color .2s ease-out;
}
.faq .accordion-button::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;
  border-radius:2px;background:var(--brand-600);opacity:0;
  transition:opacity .2s ease-out;
}
.faq .accordion-button::after{
  content:"+";position:absolute;right:16px;top:50%;
  width:24px;height:24px;margin:0;transform:translateY(-50%);
  background-image:none;display:grid;place-items:center;
  font-size:20px;font-weight:400;color:var(--ink-400);
  transition:transform .2s ease-out,color .2s ease-out;
}
.faq .accordion-button:not(.collapsed){
  color:var(--brand-600);background:#fff;box-shadow:none;
}
.faq .accordion-button:not(.collapsed)::before{opacity:1;}
.faq .accordion-button:not(.collapsed)::after{content:"×";color:var(--brand-600);transform:translateY(-50%) rotate(0deg);}
.faq .accordion-button:hover{background:var(--bg-1);color:var(--brand-600);}
.faq .accordion-button:focus{box-shadow:0 0 0 3px rgba(31,99,216,.12);border-radius:6px;}
.faq .accordion-body{padding:0 44px 20px 20px;font-size:15px;line-height:1.8;color:var(--ink-600);}

/* ============ 继续浏览 + CTA ============ */
.cta-band{background:var(--bg-1);padding:var(--sec-y) 0;}
.continue-card{
  display:flex;align-items:center;gap:24px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:28px 32px;
  transition:box-shadow .24s ease-out,border-color .24s ease-out,transform .24s ease-out;
}
.continue-card:hover{
  border-color:rgba(31,99,216,.28);box-shadow:var(--sh-2);transform:translateY(-2px);
}
.continue-card h2{font-size:22px;font-weight:700;color:var(--brand-800);margin:10px 0 8px;}
.continue-card p{font-size:15px;color:var(--ink-600);}
.cc-arrow{
  margin-left:auto;flex:0 0 auto;width:48px;height:48px;border-radius:50%;
  display:grid;place-items:center;background:var(--brand-50);color:var(--brand-600);
  font-size:20px;transition:background-color .22s ease-out,color .22s ease-out,transform .22s ease-out;
}
.continue-card:hover .cc-arrow{background:var(--brand-600);color:#fff;transform:translateX(4px);}
.cta-row{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:48px;}
.cta-title{text-align:center;font-size:28px;font-weight:700;color:var(--brand-800);margin-bottom:12px;}
.cta-sub{text-align:center;font-size:15px;color:var(--ink-600);}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-800);color:rgba(255,255,255,.72);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);color:#fff;width:34px;height:34px;border-radius:var(--r-btn);display:grid;place-items:center;}
.footer-grid > div > p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);max-width:340px;}
.footer-grid h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-grid ul{display:grid;gap:10px;}
.footer-grid ul a{
  position:relative;font-size:14px;color:rgba(255,255,255,.72);
  transition:color .2s ease-out;
}
.footer-grid ul a::after{
  content:"";position:absolute;left:0;bottom:-3px;height:2px;width:0;
  background:#fff;transition:width .22s ease-out;border-radius:2px;
}
.footer-grid ul a:hover{color:#fff;}
.footer-grid ul a:hover::after{width:100%;}
.social-row{display:flex;gap:10px;margin-top:20px;}
.social-row span{
  width:34px;height:34px;border-radius:var(--r-btn);
  border:1px solid rgba(255,255,255,.2);display:grid;place-items:center;
  font-size:14px;color:rgba(255,255,255,.8);
  transition:border-color .2s ease-out,background-color .2s ease-out,color .2s ease-out;
}
.social-row span:hover{border-color:#fff;background:rgba(255,255,255,.1);color:#fff;}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.16);
  padding:20px 0;display:flex;flex-wrap:wrap;gap:10px;
  justify-content:space-between;font-size:13px;color:rgba(255,255,255,.72);
}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:1020;
  display:inline-flex;align-items:center;gap:10px;
  height:52px;padding:0 22px;border-radius:var(--r-pill);
  background:var(--cta-500);color:#fff;font-size:15px;font-weight:600;
  box-shadow:var(--sh-3);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .24s ease-out,transform .24s ease-out,visibility .24s,background-color .2s ease-out;
}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{background:var(--cta-600);color:#fff;}
.float-cta:focus-visible{outline:2px solid #fff;outline-offset:2px;}

/* ============ 入场动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease-out,transform .5s ease-out;}
.reveal.in{opacity:1;transform:none;}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .nav-mid{gap:20px;}
  .search-box input{width:160px;}
  .split{gap:40px;}
}
@media (max-width:991px){
  .nav-mid,.nav-right .search-box,.nav-right .btn-ghost{display:none;}
  .nav-toggle{display:inline-flex;}
  .page-banner h1{font-size:30px;}
  .section{padding:72px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .split{grid-template-columns:1fr;gap:28px;}
  .split.reverse .split-media{order:0;}
  .split + .split{margin-top:56px;}
}
@media (max-width:767px){
  .nav-inner{height:60px;}
  .brand{font-size:16px;}
  .mobile-drawer{top:60px;}
  .page-banner{min-height:160px;padding:32px 0;}
  .page-banner h1{font-size:26px;}
  .section{padding:var(--sec-y-m) 0;}
  .section-head{margin-bottom:28px;}
  .section-head h2{font-size:24px;}
  .band-photo{height:200px;}
  .num-list::before{display:none;}
  .num-item{grid-template-columns:52px 1fr;gap:16px;padding:24px 0;}
  .num-index{font-size:30px;}
  .num-thumb{grid-column:2;margin-top:14px;}
  .num-thumb img{height:150px;}
  .stat-grid{grid-template-columns:1fr 1fr;gap:24px 0;}
  .stat-item{padding:0 16px;border-left:1px solid var(--line);}
  .stat-item:nth-child(odd){border-left:0;padding-left:0;}
  .stat-item:nth-child(3),.stat-item:nth-child(4){border-top:1px solid var(--line);padding-top:20px;}
  .stat-dd{font-size:24px;}
  .timeline{grid-template-columns:1fr;gap:0;}
  .tl-item{padding:0 0 24px 22px;border-left:1px solid var(--line);}
  .tl-item:last-child{border-left-color:transparent;padding-bottom:0;}
  .tl-top{position:relative;margin-bottom:8px;}
  .tl-dot{position:absolute;left:-28px;top:6px;box-shadow:0 0 0 4px var(--bg-0);}
  .tl-line{display:none;}
  .split-body h2{font-size:22px;}
  .continue-card{flex-direction:column;align-items:flex-start;padding:24px;}
  .cc-arrow{margin:0;width:44px;height:44px;}
  .cta-row .btn-cta,.cta-row .btn-outline{width:100%;}
  .cta-title{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .float-cta{
    left:16px;right:16px;bottom:0;height:56px;border-radius:16px 16px 0 0;
    justify-content:center;transform:translateY(100%);
    padding-bottom:env(safe-area-inset-bottom);
  }
  .float-cta.show{transform:translateY(0);}
  .site-footer{padding-bottom:72px;}
}
@media (max-width:575px){
  .container{padding-left:16px;padding-right:16px;}
  .page-banner h1{font-size:23px;}
  .hero-chips{gap:8px;}
  .faq .accordion-button{font-size:15px;padding:18px 40px 18px 16px;}
  .faq .accordion-body{padding:0 20px 18px 16px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}