/* roulang page: index */
:root{
  --brand:#F04E23;
  --brand-2:#FF8A3D;
  --amber:#FFC93C;
  --teal:#00BFA6;
  --teal-light:#6BE3D0;
  --ink:#1B1416;
  --ink-2:#5C5257;
  --ink-3:#8C8188;
  --line:#EFE1D8;
  --bg:#FFF7F2;
  --card:#FFFFFF;
  --dark:#191320;
  --danger:#D9455F;
  --grad-brand:linear-gradient(135deg,#F04E23 0%,#FF8A3D 55%,#FFC93C 100%);
  --grad-teal:linear-gradient(135deg,#00BFA6 0%,#6BE3D0 100%);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-xl:32px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(27,20,22,.05);
  --sh-2:0 14px 34px rgba(240,78,35,.14);
  --sh-3:0 26px 60px rgba(27,20,22,.16);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-2)}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.3px}
p{margin:0 0 1.2em}
ul,ol{margin:0 0 1.2em;padding-left:1.2em}
button{font-family:inherit}
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto}
:focus-visible{outline:3px solid rgba(240,78,35,.4);outline-offset:2px;border-radius:6px}
::selection{background:rgba(240,78,35,.18)}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1040;
  background:rgba(255,247,242,.55);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.45);
  box-shadow:0 2px 12px rgba(27,20,22,.05);
  transition:background .24s ease,box-shadow .24s ease;
}
.site-header.is-scrolled{background:var(--dark);border-bottom-color:transparent;box-shadow:0 10px 30px rgba(27,20,22,.22)}
.nav-inner{height:84px;display:flex;align-items:center;gap:28px;transition:height .24s ease}
.site-header.is-scrolled .nav-inner{height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:12px;background:var(--grad-brand);
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:16px;
  box-shadow:0 8px 18px rgba(240,78,35,.3);
}
.brand-text{font-size:19px;font-weight:800;color:var(--ink);letter-spacing:-.4px;white-space:nowrap}
.brand-text em{font-style:normal;color:var(--brand)}
.site-header.is-scrolled .brand-text{color:#fff}
.site-header.is-scrolled .brand-text em{color:var(--amber)}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  position:relative;padding:8px 14px;border-radius:var(--r-pill);
  font-size:15px;font-weight:500;color:var(--ink-2);white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--brand);background:rgba(240,78,35,.07)}
.nav-link.active{color:var(--brand);font-weight:700}
.nav-link.active::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:22px;height:3px;border-radius:999px;background:var(--grad-brand);
}
.site-header.is-scrolled .nav-link{color:rgba(255,255,255,.78)}
.site-header.is-scrolled .nav-link:hover{color:#fff;background:rgba(255,255,255,.08)}
.site-header.is-scrolled .nav-link.active{color:#fff}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.icon-btn{
  width:44px;height:44px;border-radius:50%;border:1.5px solid var(--line);background:#fff;
  color:var(--ink-2);display:flex;align-items:center;justify-content:center;
  cursor:pointer;transition:.2s ease;font-size:15px;
}
.icon-btn:hover{color:var(--brand);border-color:var(--brand);transform:translateY(-2px)}
.site-header.is-scrolled .icon-btn{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.22);color:#fff}
.site-header.is-scrolled .icon-btn:hover{border-color:var(--amber);color:var(--amber)}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  min-width:150px;padding:14px 30px;border:0;border-radius:var(--r-pill);
  background:var(--grad-brand);background-size:170% 170%;background-position:0 0;
  color:#fff;font-size:16px;font-weight:600;cursor:pointer;
  transition:transform .22s ease,box-shadow .22s ease,background-position .22s ease;
  box-shadow:0 10px 22px rgba(240,78,35,.24);
}
.btn-brand:hover{color:#fff;transform:translateY(-2px);background-position:100% 0;box-shadow:0 16px 34px rgba(240,78,35,.34)}
.btn-brand:active{transform:translateY(0);box-shadow:0 6px 16px rgba(240,78,35,.24)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  min-width:150px;padding:13px 28px;border:1.5px solid var(--brand);border-radius:var(--r-pill);
  background:#fff;color:var(--brand);font-size:16px;font-weight:600;cursor:pointer;
  transition:.22s ease;
}
.btn-ghost:hover{background:rgba(240,78,35,.08);color:var(--brand);transform:translateY(-2px);box-shadow:0 12px 26px rgba(240,78,35,.14)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm-pill{padding:10px 22px;min-width:auto;font-size:14px;border-radius:var(--r-pill)}
.btn-teal{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  min-width:150px;padding:13px 28px;border:0;border-radius:var(--r-pill);
  background:var(--grad-teal);color:#fff;font-weight:600;font-size:16px;cursor:pointer;
  transition:.22s ease;box-shadow:0 10px 22px rgba(0,191,166,.22);
}
.btn-teal:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 32px rgba(0,191,166,.3)}
.btn-group-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}

.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1.5px solid var(--line);
  background:#fff;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  transition:.2s ease;
}
.nav-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:var(--ink);transition:.24s ease}
.site-header.is-scrolled .nav-toggle{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.22)}
.site-header.is-scrolled .nav-toggle span{background:#fff}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.search-bar{display:none;padding:0 0 16px}
.search-bar.is-open{display:block}
.search-bar input{
  width:100%;height:48px;border:1.5px solid var(--line);border-radius:var(--r-md);
  padding:0 18px;font-size:15px;background:#fff;color:var(--ink);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-bar input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(240,78,35,.2)}

/* ============ Hero ============ */
.hero{padding:158px 0 72px;position:relative;overflow:hidden}
.hero::before{
  content:"";position:absolute;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,201,60,.28),rgba(255,201,60,0) 68%);
  top:-140px;left:-160px;pointer-events:none;
}
.hero::after{
  content:"";position:absolute;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(0,191,166,.16),rgba(0,191,166,0) 70%);
  bottom:-180px;right:-120px;pointer-events:none;
}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:var(--r-pill);
  background:#fff;border:1.5px solid rgba(0,191,166,.35);color:#04806f;
  font-size:13px;font-weight:600;margin-bottom:22px;box-shadow:var(--sh-1);
}
.hero h1{
  font-size:clamp(32px,5vw,54px);font-weight:800;line-height:1.15;letter-spacing:-.5px;margin-bottom:20px;
}
.hero h1 .hl{
  background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{
  font-size:clamp(16px,1.6vw,20px);line-height:1.75;color:var(--ink-2);margin-bottom:32px;max-width:560px;
}
.hero-note{font-size:13px;color:var(--ink-3);margin-top:18px}
.hero-media{position:relative}
.hero-media img{
  width:100%;height:470px;object-fit:cover;border-radius:var(--r-xl);
  box-shadow:var(--sh-3);
}
.hero-media::after{
  content:"";position:absolute;inset:0;border-radius:var(--r-xl);pointer-events:none;
  background:linear-gradient(135deg,rgba(240,78,35,.34) 0%,rgba(255,138,61,.12) 48%,rgba(255,201,60,.22) 100%);
}
.float-badge{
  position:absolute;z-index:3;background:#fff;border-radius:var(--r-md);
  box-shadow:var(--sh-3);padding:12px 18px;display:flex;align-items:center;gap:12px;
}
.float-badge .fb-icon{
  width:36px;height:36px;border-radius:11px;background:var(--grad-teal);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:14px;flex:0 0 auto;
}
.float-badge .fb-num{font-size:18px;font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums;line-height:1.2}
.float-badge .fb-label{font-size:12px;color:var(--ink-3);line-height:1.4}
.float-badge.b1{left:-34px;bottom:44px}
.float-badge.b2{right:-18px;top:32px}

/* ============ 数据徽章带 ============ */
.stat-strip-wrap{padding:8px 0 0}
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat{
  background:#fff;border:1.5px solid rgba(0,191,166,.32);border-radius:var(--r-lg);
  padding:24px 22px;transition:.26s ease;
}
.stat:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(0,191,166,.16);border-color:var(--teal)}
.stat .s-icon{
  width:38px;height:38px;border-radius:11px;background:rgba(0,191,166,.12);color:#028d7c;
  display:flex;align-items:center;justify-content:center;font-size:15px;margin-bottom:14px;
}
.stat .s-num{font-size:30px;font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums;line-height:1.2;letter-spacing:-1px}
.stat .s-num span{font-size:15px;font-weight:600;color:var(--teal);margin-left:4px}
.stat .s-label{font-size:13px;color:var(--ink-3);margin-top:4px}

/* ============ 板块通用 ============ */
.section{padding:96px 0}
.section.alt{background:#fff}
.section-dark{background:var(--dark);color:#fff}
.section-head{max-width:720px;margin-bottom:48px}
.section-head .eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:1px;color:var(--brand);
  background:rgba(240,78,35,.09);padding:6px 14px;border-radius:var(--r-pill);margin-bottom:14px;
}
.section-head h2{font-size:clamp(24px,3.2vw,38px);font-weight:700;line-height:1.25;margin-bottom:14px}
.section-head p{color:var(--ink-2);font-size:16px;margin:0}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-dark .section-head h2,.section-dark h2{color:#fff}
.section-dark .section-head p{color:rgba(255,255,255,.72)}
.text-link{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:15px;color:var(--brand)}
.text-link i{transition:transform .22s ease}
.text-link:hover i{transform:translateX(4px)}

/* ============ 轮播 ============ */
.slider-shell{background:#fff;border-radius:var(--r-xl);padding:16px;box-shadow:var(--sh-3);border:1px solid var(--line)}
#featureCarousel .carousel-item img{width:100%;height:440px;object-fit:cover;border-radius:var(--r-lg)}
#featureCarousel .carousel-caption{
  position:static;padding:18px 8px 6px;color:var(--ink-2);font-size:13px;text-align:center;
}
#featureCarousel .carousel-indicators{position:static;margin:12px 0 4px;display:flex;justify-content:center;gap:10px}
#featureCarousel .carousel-indicators [data-bs-target]{
  width:46px;height:6px;border:0;border-radius:999px;background:#F3E3DA;opacity:1;
  transition:width .25s ease,background .25s ease;
}
#featureCarousel .carousel-indicators .active{width:80px;background:var(--grad-brand)}
#featureCarousel .carousel-control-prev,
#featureCarousel .carousel-control-next{
  width:48px;height:48px;top:44%;border-radius:50%;opacity:1;
  background:rgba(255,255,255,.72);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
  border:1px solid rgba(255,255,255,.6);color:var(--brand);box-shadow:var(--sh-1);
  transition:.22s ease;
}
#featureCarousel .carousel-control-prev{left:32px}
#featureCarousel .carousel-control-next{right:32px}
#featureCarousel .carousel-control-prev:hover,
#featureCarousel .carousel-control-next:hover{background:var(--brand);color:#fff;border-color:var(--brand)}
#featureCarousel .carousel-control-prev-icon,
#featureCarousel .carousel-control-next-icon{width:18px;height:18px}

/* ============ 功能明细错位栅格 ============ */
.feature-row-1{margin-bottom:24px}
.feature-wide{
  display:grid;grid-template-columns:.95fr 1.05fr;gap:0;background:#fff;border-radius:var(--r-xl);
  overflow:hidden;box-shadow:var(--sh-1);border:1px solid var(--line);transition:.26s ease;
}
.feature-wide:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.feature-wide .fw-media{overflow:hidden}
.feature-wide .fw-media img{width:100%;height:100%;min-height:320px;object-fit:cover;transition:transform .4s ease}
.feature-wide:hover .fw-media img{transform:scale(1.04)}
.feature-wide .fw-body{padding:44px 42px;display:flex;flex-direction:column;justify-content:center}
.feature-icon{
  width:48px;height:48px;border-radius:14px;background:rgba(240,78,35,.1);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:19px;margin-bottom:18px;
}
.feature-wide h3{font-size:22px;font-weight:600;margin-bottom:12px}
.feature-wide p{color:var(--ink-2);font-size:15px;margin-bottom:18px}
.feature-row-2{display:grid;grid-template-columns:1.15fr .85fr;gap:24px}
.feature-tall{
  background:#fff;border-radius:var(--r-xl);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--sh-1);display:flex;flex-direction:column;transition:.26s ease;
}
.feature-tall:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.feature-tall:hover h3{color:var(--brand-2)}
.feature-tall .ft-media{overflow:hidden}
.feature-tall .ft-media img{width:100%;height:220px;object-fit:cover;transition:transform .4s ease}
.feature-tall:hover .ft-media img{transform:scale(1.04)}
.feature-tall .ft-body{padding:30px 30px 34px}
.feature-tall h3{font-size:20px;font-weight:600;margin-bottom:10px;transition:color .22s ease}
.feature-tall p{color:var(--ink-2);font-size:15px;margin-bottom:16px}

/* ============ 系统要求 ============ */
.spec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.spec-card{
  background:#fff;border-radius:var(--r-lg);border:1px solid var(--line);padding:28px 26px;
  box-shadow:var(--sh-1);transition:.26s ease;
}
.spec-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(240,78,35,.3)}
.spec-tag{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(0,191,166,.12);color:#028d7c;font-size:13px;font-weight:600;margin-bottom:18px;
}
.spec-head{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.spec-head .sh-icon{
  width:44px;height:44px;border-radius:13px;background:var(--grad-brand);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:17px;flex:0 0 auto;
}
.spec-head .sh-title{font-size:17px;font-weight:700}
.spec-head .sh-sub{font-size:12px;color:var(--ink-3)}
.spec-row{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:12px 0;border-bottom:1px solid var(--line);font-size:14px;
}
.spec-row:last-child{border-bottom:0}
.spec-row .sr-key{color:var(--ink-2);display:flex;align-items:center;gap:9px}
.spec-row .sr-key i{color:var(--teal);width:16px;text-align:center}
.spec-row .sr-val{font-weight:700;color:#028d7c;font-variant-numeric:tabular-nums;white-space:nowrap}

/* ============ 评价墙 ============ */
.review-wall{columns:3;column-gap:24px}
.review-card{
  break-inside:avoid;background:#fff;border-radius:var(--r-lg);border:1px solid var(--line);
  padding:26px 24px;margin-bottom:24px;box-shadow:var(--sh-1);transition:.26s ease;
}
.review-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.review-top{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.avatar{
  width:42px;height:42px;border-radius:50%;background:var(--grad-brand);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;flex:0 0 auto;
}
.avatar.teal{background:var(--grad-teal)}
.avatar.amber{background:linear-gradient(135deg,#FF8A3D,#FFC93C)}
.review-name{font-size:15px;font-weight:600;line-height:1.4}
.review-time{font-size:12px;color:var(--ink-3);line-height:1.4}
.stars{color:var(--amber);font-size:13px;margin-bottom:10px;letter-spacing:2px}
.review-text{font-size:15px;color:var(--ink-2);margin:0;line-height:1.8}

/* ============ 最新信息 ============ */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.news-card{
  display:flex;gap:0;background:#fff;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh-1);transition:.26s ease;height:100%;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(240,78,35,.28)}
.news-thumb{flex:0 0 200px;overflow:hidden;background:var(--grad-brand)}
.news-thumb img{width:100%;height:100%;min-height:160px;object-fit:cover;transition:transform .4s ease}
.news-card:hover .news-thumb img{transform:scale(1.05)}
.news-body{padding:20px 22px;display:flex;flex-direction:column;gap:8px;min-width:0}
.tag{
  display:inline-block;align-self:flex-start;font-size:12px;font-weight:600;color:var(--brand);
  background:rgba(240,78,35,.1);padding:4px 12px;border-radius:var(--r-pill);
}
.news-body h3{
  font-size:17px;font-weight:600;line-height:1.5;transition:color .22s ease;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card:hover h3{color:var(--brand-2)}
.news-body p{
  font-size:14px;color:var(--ink-2);margin:0;line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--ink-3);padding-top:6px;
}
.news-meta i{color:var(--brand)}
.empty-state{
  grid-column:1 / -1;min-height:240px;border:1.5px dashed var(--line);border-radius:var(--r-lg);
  background:#FFFBF8;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;padding:40px 20px;text-align:center;
}
.empty-state i{font-size:34px;color:rgba(240,78,35,.5)}
.empty-state p{font-size:15px;color:var(--ink-2);margin:0}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:.9fr 1.6fr;gap:56px;align-items:start}
.faq-intro h2{font-size:clamp(24px,3.2vw,38px);font-weight:700;line-height:1.25;margin-bottom:16px}
.faq-intro p{color:var(--ink-2);font-size:15px}
.faq-acc .accordion-item{
  border:1px solid var(--line);border-radius:var(--r-md);margin-bottom:12px;overflow:hidden;background:#fff;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.faq-acc .accordion-item:hover{box-shadow:var(--sh-1)}
.faq-acc .accordion-button{
  font-size:17px;font-weight:600;color:var(--ink);background:#fff;padding:20px 22px;
  box-shadow:none;transition:.22s ease;gap:12px;
}
.faq-acc .accordion-button:not(.collapsed){
  color:var(--brand);background:#fff;box-shadow:inset 4px 0 0 var(--brand);
}
.faq-acc .accordion-button:focus{box-shadow:inset 4px 0 0 var(--brand);outline:none}
.faq-acc .accordion-button::after{
  background-image:none;content:"+";font-size:22px;font-weight:400;line-height:1;color:var(--brand);
  width:auto;height:auto;transition:transform .25s ease;
}
.faq-acc .accordion-button[aria-expanded="true"]::after{transform:rotate(45deg)}
.faq-acc .accordion-body{
  padding:0 22px 20px 22px;color:var(--ink-2);font-size:15px;line-height:1.85;
}
.faq-acc .accordion-item:has(.accordion-button:not(.collapsed)){border-color:rgba(240,78,35,.4)}

/* ============ 底部 CTA ============ */
.cta-band{
  background:var(--dark);position:relative;overflow:hidden;padding:88px 0;
}
.cta-band::before{
  content:"";position:absolute;width:600px;height:600px;border-radius:50%;
  background:radial-gradient(circle,rgba(240,78,35,.32),rgba(240,78,35,0) 68%);
  top:-260px;left:-120px;pointer-events:none;
}
.cta-band::after{
  content:"";position:absolute;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,201,60,.2),rgba(255,201,60,0) 70%);
  bottom:-220px;right:-100px;pointer-events:none;
}
.cta-inner{position:relative;z-index:2;text-align:center;max-width:720px;margin:0 auto}
.cta-inner h2{color:#fff;font-size:clamp(24px,3.2vw,38px);font-weight:700;line-height:1.25;margin-bottom:16px}
.cta-inner p{color:rgba(255,255,255,.72);font-size:16px;margin-bottom:32px}
.cta-inner .btn-group-row{justify-content:center}
.cta-band .btn-ghost{background:transparent;border-color:rgba(255,255,255,.4);color:#fff}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.1);border-color:#fff;color:#fff}
.cta-note{margin-top:22px;font-size:13px;color:rgba(255,255,255,.5)}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);position:relative;padding-top:6px}
.footer-line{height:4px;background:var(--grad-brand)}
.footer-main{padding:72px 0 48px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand .brand-text{color:#fff}
.footer-brand .brand-text em{color:var(--amber)}
.footer-desc{font-size:14px;color:rgba(255,255,255,.6);margin:18px 0 22px;line-height:1.8;max-width:320px}
.footer-contact{display:flex;gap:14px;align-items:center}
.qr-box{
  width:88px;height:88px;border-radius:var(--r-md);background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.14);display:flex;flex-direction:column;align-items:center;
  justify-content:center;gap:4px;font-size:11px;color:rgba(255,255,255,.6);
}
.qr-box i{font-size:22px;color:var(--amber)}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px}
.footer-col ul{list-style:none;padding:0;margin:0}
.footer-col li{margin-bottom:12px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.66);transition:.2s ease;display:inline-block}
.footer-col a:hover{color:var(--brand-2);transform:translateX(2px)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0;font-size:13px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;color:rgba(255,255,255,.45);
}
.footer-bottom a{color:rgba(255,255,255,.55)}
.footer-bottom a:hover{color:var(--brand-2)}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .hero-grid{gap:40px}
  .hero-media img{height:420px}
  .feature-wide .fw-body{padding:36px 32px}
}
@media (max-width:991.98px){
  .section{padding:72px 0}
  .nav-toggle{display:flex}
  .nav-links{
    position:fixed;top:0;right:0;bottom:0;width:78%;max-width:340px;background:var(--dark);
    flex-direction:column;align-items:stretch;gap:0;padding:100px 24px 32px;
    transform:translateX(102%);transition:transform .3s ease;z-index:1050;overflow-y:auto;
    box-shadow:-20px 0 50px rgba(27,20,22,.3);
  }
  .nav-links.is-open{transform:translateX(0)}
  .nav-links .nav-link{
    color:rgba(255,255,255,.82);width:100%;padding:16px 0;border-bottom:1px solid rgba(255,255,255,.1);
    border-radius:0;font-size:16px;
  }
  .nav-links .nav-link.active{color:#fff;font-weight:700}
  .nav-links .nav-link.active::after{left:0;transform:none;bottom:8px;width:16px}
  .hero{padding:132px 0 56px}
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero-media img{height:360px}
  .hero-media{order:2}
  .float-badge.b1{left:12px;bottom:20px}
  .float-badge.b2{right:12px;top:16px}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .feature-wide{grid-template-columns:1fr}
  .feature-wide .fw-media img{min-height:260px;height:260px}
  .feature-row-2{grid-template-columns:1fr}
  .spec-grid{grid-template-columns:1fr}
  .review-wall{columns:2}
  .faq-wrap{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  #featureCarousel .carousel-item img{height:340px}
}
@media (max-width:767.98px){
  .news-grid{grid-template-columns:1fr}
  .news-thumb{flex:0 0 140px}
  .review-wall{columns:1}
  .stat-strip{grid-template-columns:1fr 1fr;gap:14px}
  .stat{padding:18px 16px}
  .stat .s-num{font-size:24px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:6px}
}
@media (max-width:575.98px){
  .container{padding-left:16px;padding-right:16px}
  .section{padding:56px 0}
  .hero{padding:120px 0 48px}
  .hero-media img{height:280px}
  .float-badge{padding:9px 12px;gap:9px}
  .float-badge .fb-num{font-size:15px}
  .float-badge .fb-icon{width:30px;height:30px;font-size:12px}
  .btn-group-row{flex-direction:column;align-items:stretch}
  .btn-brand,.btn-ghost,.btn-teal{width:100%;min-width:0}
  .nav-actions .btn-brand{display:none}
  .stat-strip{grid-template-columns:1fr}
  .stat-strip .stat:last-child{display:none}
  .spec-row{font-size:13px}
  .news-card{flex-direction:column}
  .news-thumb{flex:none;height:180px}
  .news-thumb img{min-height:180px}
  #featureCarousel .carousel-item img{height:210px}
  #featureCarousel .carousel-control-prev,
  #featureCarousel .carousel-control-next{width:38px;height:38px;top:40%}
  #featureCarousel .carousel-control-prev{left:12px}
  #featureCarousel .carousel-control-next{right:12px}
  .cta-band{padding:64px 0}
}

/* roulang page: article */
:root{
  --brand:#F04E23;
  --brand-2:#FF8A3D;
  --amber:#FFC93C;
  --teal:#00BFA6;
  --teal-light:#6BE3D0;
  --ink:#1B1416;
  --ink-2:#5C5257;
  --ink-3:#8C8188;
  --line:#EFE1D8;
  --bg:#FFF7F2;
  --surface:#FFFFFF;
  --dark:#191320;
  --grad-brand:linear-gradient(135deg,#F04E23 0%,#FF8A3D 52%,#FFC93C 100%);
  --grad-teal:linear-gradient(135deg,#00BFA6 0%,#6BE3D0 100%);
  --r-xs:10px;
  --r-sm:16px;
  --r-md:24px;
  --r-lg:32px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(27,20,22,.05);
  --sh-2:0 14px 34px rgba(240,78,35,.14);
  --sh-3:0 26px 60px rgba(27,20,22,.16);
  --t:220ms ease;
  --t-slow:260ms ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit;font-size:inherit}
ul,ol{margin:0;padding:0}
:focus-visible{outline:3px solid rgba(240,78,35,.4);outline-offset:2px;border-radius:8px}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1040;
  background:rgba(255,247,242,.55);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.45);
  box-shadow:0 8px 24px rgba(27,20,22,.06);
  transition:background var(--t-slow),box-shadow var(--t-slow),border-color var(--t-slow);
}
.site-header.is-scrolled{
  background:var(--dark);
  border-bottom-color:rgba(255,255,255,.08);
  box-shadow:0 12px 32px rgba(27,20,22,.28);
}
.nav-inner{display:flex;align-items:center;height:84px;transition:height var(--t-slow)}
.is-scrolled .nav-inner{height:68px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:-.3px;color:var(--ink);transition:color var(--t)}
.brand-mark{
  width:36px;height:36px;border-radius:12px;flex:0 0 36px;
  background:var(--grad-brand);color:#fff;
  display:grid;place-items:center;font-size:15px;
  box-shadow:0 6px 16px rgba(240,78,35,.32);
}
.brand-text em{font-style:normal;color:var(--brand);transition:color var(--t)}
.is-scrolled .brand{color:#fff}
.is-scrolled .brand-text em{color:var(--amber)}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:34px;flex:1}
.nav-link{
  padding:8px 14px;border-radius:var(--r-pill);
  font-size:15px;font-weight:500;color:var(--ink-2);
  transition:color var(--t),background var(--t);
  position:relative;white-space:nowrap;
}
.nav-link:hover{color:var(--brand);background:rgba(240,78,35,.08)}
.nav-link.active{color:var(--brand);font-weight:700}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;
  border-radius:3px;background:var(--grad-brand);
}
.is-scrolled .nav-link{color:rgba(255,255,255,.76)}
.is-scrolled .nav-link:hover{color:#fff;background:rgba(255,255,255,.1)}
.is-scrolled .nav-link.active{color:var(--amber)}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.icon-btn{
  width:44px;height:44px;border-radius:50%;
  border:1px solid var(--line);background:#fff;color:var(--ink-2);
  display:grid;place-items:center;cursor:pointer;
  transition:color var(--t),border-color var(--t),transform var(--t),background var(--t);
}
.icon-btn:hover{color:var(--brand);border-color:var(--brand);transform:translateY(-2px)}
.is-scrolled .icon-btn{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.16);color:#fff}
.btn-brand{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 24px;border:0;border-radius:var(--r-pill);
  background:var(--grad-brand);color:#fff;font-weight:700;font-size:15px;
  box-shadow:0 10px 24px rgba(240,78,35,.28);
  transition:transform var(--t),box-shadow var(--t),filter var(--t);
  min-width:112px;justify-content:center;white-space:nowrap;
}
.btn-brand:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(240,78,35,.34);filter:saturate(115%)}
.btn-brand:active{transform:translateY(0)}
.btn-sm-pill{padding:10px 20px;font-size:14px;min-width:104px}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-pill);
  background:#fff;border:1.5px solid var(--brand);color:var(--brand);
  font-weight:700;font-size:15px;min-width:112px;justify-content:center;
  transition:background var(--t),transform var(--t),box-shadow var(--t);
}
.btn-ghost:hover{background:#FFF0E8;transform:translateY(-2px);box-shadow:0 10px 22px rgba(240,78,35,.14)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;
  border-radius:14px;cursor:pointer;padding:0;place-items:center;gap:4px;
  flex-direction:column;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink-2);transition:var(--t)}
.is-scrolled .nav-toggle{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.16)}
.is-scrolled .nav-toggle span{background:#fff}
.search-bar{display:none;padding:0 0 16px}
.search-bar.open{display:block}
.search-bar input{
  width:100%;height:48px;border-radius:var(--r-sm);
  border:1.5px solid var(--line);background:#fff;padding:0 18px;color:var(--ink);
  transition:border-color var(--t),box-shadow var(--t);
}
.search-bar input::placeholder{color:var(--ink-3)}
.search-bar input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(240,78,35,.18)}

/* ============ 主体 ============ */
main{padding-top:118px;padding-bottom:0}
.breadcrumb-bar{padding:6px 0 22px;font-size:13px;color:var(--ink-3)}
.breadcrumb-bar ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none}
.breadcrumb-bar li{display:flex;align-items:center;gap:8px}
.breadcrumb-bar li+li::before{content:"/";color:var(--line)}
.breadcrumb-bar a{color:var(--ink-3);transition:color var(--t)}
.breadcrumb-bar a:hover{color:var(--brand)}
.breadcrumb-bar .current{color:var(--brand);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

.article-head{max-width:860px;margin:0 auto;text-align:center}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 15px;border-radius:var(--r-pill);
  background:rgba(0,191,166,.12);color:#04907D;
  font-size:13px;font-weight:700;letter-spacing:.2px;
}
h1{
  font-size:clamp(30px,4.4vw,46px);
  font-weight:800;line-height:1.24;letter-spacing:-.5px;
  margin:20px 0 18px;color:var(--ink);
  min-height:2.48em;
  display:flex;align-items:center;justify-content:center;
}
.article-meta{
  display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:14px;
  font-size:13px;color:var(--ink-3);font-variant-numeric:tabular-nums;
}
.article-meta span{display:inline-flex;align-items:center;gap:6px}
.article-meta i{color:var(--brand-2)}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line)}
.article-cover{
  margin:36px 0 0;border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-3);border:1px solid rgba(255,255,255,.7);
  background:var(--grad-brand);
}
.article-cover img{width:100%;height:auto;aspect-ratio:16/8;object-fit:cover}

.article-layout{
  display:grid;grid-template-columns:minmax(0,820px) 280px;
  gap:52px;justify-content:center;align-items:start;
  padding:64px 0 8px;
}
.article-main{min-width:0}
.article-body{
  background:var(--surface);border-radius:var(--r-md);
  padding:44px 46px;box-shadow:var(--sh-1);border:1px solid var(--line);
  font-size:16.5px;color:#2C2422;
}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 1.25em}
.article-body h2{
  position:relative;padding-left:18px;
  font-size:26px;font-weight:700;line-height:1.35;
  margin:46px 0 18px;color:var(--ink);letter-spacing:-.2px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.2em;width:5px;height:1em;
  border-radius:3px;background:var(--grad-brand);
}
.article-body h3{
  position:relative;padding-left:16px;
  font-size:20px;font-weight:600;line-height:1.5;
  margin:34px 0 14px;color:var(--ink);
}
.article-body h3::before{
  content:"";position:absolute;left:0;top:.28em;width:4px;height:.9em;
  border-radius:3px;background:var(--teal);
}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:24px}
.article-body li{margin-bottom:.55em}
.article-body li::marker{color:var(--brand);font-weight:700}
.article-body blockquote{
  margin:30px 0;padding:20px 26px;
  background:#FFF1E9;border-left:4px solid var(--brand);
  border-radius:0 var(--r-sm) var(--r-sm) 0;color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-sm);margin:26px auto;box-shadow:var(--sh-1)}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;transition:color var(--t)}
.article-body a:hover{color:var(--teal)}
.article-body code{
  background:#FFF1E9;color:#C93C15;padding:2px 7px;border-radius:6px;
  font-size:.9em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.article-body pre{
  background:var(--dark);color:#F6EDE9;padding:20px 22px;border-radius:var(--r-sm);
  overflow:auto;margin:26px 0;
}
.article-body pre code{background:none;color:inherit;padding:0}
.article-body table{
  width:100%;border-collapse:separate;border-spacing:0;
  border:1px solid var(--line);border-radius:var(--r-sm);overflow:hidden;
  margin:28px 0;font-size:15px;
}
.article-body th{
  background:#FFF1E9;text-align:left;padding:13px 18px;font-weight:700;
  color:var(--ink);font-size:14px;
}
.article-body td{padding:13px 18px;border-top:1px solid var(--line);color:var(--ink-2)}
.article-body tbody tr:nth-child(even) td{background:#FFFAF6}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0}

.article-empty{
  background:var(--surface);border:1px dashed var(--line);border-radius:var(--r-md);
  min-height:280px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  text-align:center;padding:56px 24px;box-shadow:var(--sh-1);
}
.article-empty i{font-size:38px;color:var(--brand-2);margin-bottom:16px}
.article-empty h2{font-size:22px;font-weight:700;margin:0 0 10px}
.article-empty p{color:var(--ink-2);font-size:15px;margin:0 0 24px}

.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin:26px 0 0}
.tag-row .label{font-size:13px;color:var(--ink-3)}
.tag{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);font-size:13px;color:var(--ink-2);
  transition:color var(--t),border-color var(--t),transform var(--t);
}
.tag:hover{color:var(--brand);border-color:var(--brand);transform:translateY(-2px)}

/* ============ 侧栏 ============ */
.article-side{position:sticky;top:100px;display:flex;flex-direction:column;gap:18px}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px;box-shadow:var(--sh-1);
}
.side-card h3{font-size:15px;font-weight:800;margin:0 0 14px;display:flex;align-items:center;gap:8px}
.side-card h3 i{color:var(--brand)}
.toc-list{list-style:none;border-left:2px solid var(--line);padding-left:14px}
.toc-list li{margin-bottom:10px;font-size:14px;line-height:1.6}
.toc-list li.toc-h3{padding-left:12px;font-size:13px}
.toc-list a{color:var(--ink-2);transition:color var(--t)}
.toc-list a:hover{color:var(--brand)}
.hot-list{list-style:none}
.hot-list li{border-top:1px solid var(--line);padding:12px 0}
.hot-list li:first-child{border-top:0;padding-top:0}
.hot-list a{display:flex;gap:10px;font-size:14px;color:var(--ink-2);line-height:1.65;transition:color var(--t)}
.hot-list a:hover{color:var(--brand)}
.hot-list .num{
  flex:0 0 22px;height:22px;border-radius:7px;background:rgba(0,191,166,.14);
  color:#04907D;font-size:12px;font-weight:800;display:grid;place-items:center;
  font-variant-numeric:tabular-nums;margin-top:2px;
}
.side-cta{
  background:var(--dark);border-radius:var(--r-md);padding:24px;color:#fff;
  background-image:radial-gradient(circle at 88% 8%,rgba(240,78,35,.5),transparent 60%);
}
.side-cta h3{font-size:16px;font-weight:800;color:#fff;margin:0 0 8px}
.side-cta p{font-size:13.5px;line-height:1.7;color:rgba(255,255,255,.72);margin:0 0 16px}
.side-cta .btn-brand{width:100%}

/* ============ 相关推荐 ============ */
.section{padding:78px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;flex-wrap:wrap}
.section-head h2{
  font-size:clamp(22px,2.7vw,32px);font-weight:700;margin:0;letter-spacing:-.3px;
}
.section-head p{margin:8px 0 0;color:var(--ink-2);font-size:15px}
.text-link{color:var(--brand);font-weight:700;font-size:15px;display:inline-flex;align-items:center;gap:6px;transition:gap var(--t)}
.text-link:hover{gap:11px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.related-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform var(--t-slow),box-shadow var(--t-slow),border-color var(--t-slow);
}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(240,78,35,.28)}
.related-card .thumb{overflow:hidden;aspect-ratio:16/10;background:var(--grad-brand)}
.related-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--t-slow)}
.related-card:hover .thumb img{transform:scale(1.04)}
.related-card .body{padding:20px 22px 22px}
.related-card .body h3{font-size:17px;font-weight:700;line-height:1.5;margin:8px 0 8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.related-card .body p{font-size:14px;color:var(--ink-2);line-height:1.75;margin:0 0 14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.related-card .meta{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-3);font-variant-numeric:tabular-nums}
.related-card .meta i{color:var(--brand-2)}
.related-card:hover .body h3{color:var(--teal)}
.back-row{margin-top:32px;display:flex;justify-content:center}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:320px minmax(0,1fr);gap:52px;align-items:start}
.faq-intro h2{font-size:clamp(22px,2.7vw,32px);font-weight:700;margin:0 0 14px;letter-spacing:-.3px}
.faq-intro p{color:var(--ink-2);font-size:15px;line-height:1.85;margin:0}
.faq-accordion .accordion-item{
  border:1px solid var(--line);border-radius:var(--r-sm);background:#fff;
  margin-bottom:12px;overflow:hidden;box-shadow:var(--sh-1);
}
.faq-accordion .accordion-button{
  position:relative;background:#fff;color:var(--ink);
  font-size:17px;font-weight:600;padding:20px 60px 20px 24px;
  box-shadow:none;border-radius:var(--r-sm);
}
.faq-accordion .accordion-button:not(.collapsed){
  color:var(--brand);background:#FFF8F3;box-shadow:none;
}
.faq-accordion .accordion-button:not(.collapsed)::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:4px;
  border-radius:4px;background:var(--grad-brand);
}
.faq-accordion .accordion-button::after{
  background-image:none;content:"+";font-size:24px;font-weight:400;line-height:1;
  color:var(--brand);position:absolute;right:22px;top:50%;transform:translateY(-50%);
  width:auto;height:auto;transition:transform var(--t);
}
.faq-accordion .accordion-button:not(.collapsed)::after{transform:translateY(-50%) rotate(45deg)}
.faq-accordion .accordion-button:focus{box-shadow:0 0 0 3px rgba(240,78,35,.18);z-index:3}
.faq-accordion .accordion-body{padding:4px 26px 22px;color:var(--ink-2);font-size:15px;line-height:1.9}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;overflow:hidden;background:var(--dark);color:#fff;
  border-radius:var(--r-lg);padding:64px 40px;text-align:center;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;opacity:.22;
}
.cta-band::after{
  content:"";position:absolute;width:420px;height:420px;border-radius:50%;
  right:-120px;top:-160px;background:radial-gradient(circle,rgba(240,78,35,.55),transparent 68%);
}
.cta-inner{position:relative;z-index:2;max-width:760px;margin:0 auto}
.cta-band h2{font-size:clamp(24px,3vw,36px);font-weight:800;margin:0 0 14px;letter-spacing:-.4px}
.cta-band p{color:rgba(255,255,255,.76);font-size:15.5px;line-height:1.85;margin:0 0 28px}
.btn-group-row{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.cta-band .btn-ghost{background:transparent;border-color:rgba(255,255,255,.4);color:#fff}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.12);box-shadow:none}
.cta-note{margin-top:20px;font-size:13px;color:rgba(255,255,255,.55)}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:#fff;margin-top:88px;position:relative}
.footer-line{height:3px;background:var(--grad-brand)}
.footer-main{padding:64px 0 44px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-brand .brand{color:#fff;margin-bottom:16px}
.footer-brand .brand-text em{color:var(--amber)}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);margin:0 0 22px;max-width:320px}
.footer-contact{display:flex;gap:14px}
.qr-box{
  width:92px;height:92px;border-radius:var(--r-sm);border:1px solid rgba(255,255,255,.14);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;
  background:rgba(255,255,255,.05);font-size:12px;color:rgba(255,255,255,.66);
}
.qr-box i{font-size:20px;color:var(--brand-2)}
.footer-col h4{font-size:15px;font-weight:700;margin:0 0 18px;color:#fff}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:12px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.6);transition:color var(--t),transform var(--t);display:inline-block}
.footer-col a:hover{color:var(--brand-2);transform:translateX(2px)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 28px;display:flex;flex-wrap:wrap;gap:10px;
  justify-content:space-between;font-size:13px;color:rgba(255,255,255,.45);
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr) 268px;gap:36px}
  .related-grid{gap:20px}
}
@media (max-width:991px){
  .nav-links{
    display:none;position:absolute;top:calc(100% + 10px);left:16px;right:16px;
    flex-direction:column;align-items:stretch;gap:4px;margin:0;padding:14px;
    background:#fff;border-radius:var(--r-md);box-shadow:var(--sh-3);
  }
  .nav-links.open{display:flex}
  .nav-link{color:var(--ink-2);padding:12px 14px;border-radius:14px}
  .nav-link.active::after{display:none}
  .is-scrolled .nav-link{color:var(--ink-2)}
  .is-scrolled .nav-link.active{color:var(--brand)}
  .nav-toggle{display:flex}
  .nav-actions{gap:8px}
  main{padding-top:104px}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px}
  .article-side{position:static;order:2}
  .article-body{padding:32px 26px}
  .faq-wrap{grid-template-columns:1fr;gap:28px}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .footer-brand{grid-column:1 / -1}
  .section{padding:64px 0}
  .cta-band{padding:52px 26px}
}
@media (max-width:767px){
  h1{min-height:0}
  .article-cover img{aspect-ratio:16/10}
  .related-grid{grid-template-columns:1fr}
  .btn-brand,.btn-ghost{min-width:0}
  .btn-group-row .btn-brand,.btn-group-row .btn-ghost{width:100%}
  .cta-band{border-radius:var(--r-md)}
}
@media (max-width:575px){
  .container{padding:0 16px}
  main{padding-top:96px}
  .article-body{padding:26px 18px;font-size:16px}
  .article-body h2{font-size:22px}
  .article-body h3{font-size:18px}
  .nav-actions .btn-sm-pill{display:none}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column}
  .section{padding:52px 0}
  .side-card{padding:18px}
}

/* roulang page: category1 */
:root{
  --brand:#F04E23;
  --brand-2:#FF8A3D;
  --amber:#FFC93C;
  --teal:#00BFA6;
  --teal-l:#6BE3D0;
  --ink:#1B1416;
  --ink-2:#5C5257;
  --ink-3:#8C8188;
  --line:#EFE1D8;
  --bg:#FFF7F2;
  --card:#FFFFFF;
  --dark:#191320;
  --grad-brand:linear-gradient(135deg,#F04E23 0%,#FF8A3D 52%,#FFC93C 100%);
  --grad-teal:linear-gradient(135deg,#00BFA6 0%,#6BE3D0 100%);
  --r-xs:10px;
  --r-sm:16px;
  --r-md:24px;
  --r-lg:32px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(27,20,22,.05);
  --sh-2:0 14px 34px rgba(240,78,35,.14);
  --sh-3:0 26px 60px rgba(27,20,22,.16);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:110px;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.9;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-2);}
button,input{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul{list-style:none;padding:0;margin:0;}
:focus-visible{outline:3px solid rgba(240,78,35,.42);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  background:rgba(255,247,242,.55);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.45);
  box-shadow:0 2px 12px rgba(27,20,22,.05);
  transition:background .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.site-header.is-scrolled{
  background:var(--dark);
  border-bottom-color:rgba(255,255,255,.08);
  box-shadow:0 10px 30px rgba(27,20,22,.28);
}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  height:84px;transition:height .24s ease;
}
.site-header.is-scrolled .nav-inner{height:68px;}

.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  background:var(--grad-brand);
  display:inline-flex;align-items:center;justify-content:center;
  color:#fff;font-size:16px;
  box-shadow:0 8px 18px rgba(240,78,35,.28);
}
.brand-text{font-size:19px;font-weight:800;letter-spacing:-.3px;color:var(--ink);line-height:1;}
.brand-text em{font-style:normal;color:var(--brand);
  background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;}
.site-header.is-scrolled .brand-text{color:#FFF7F2;}
.site-header.is-scrolled .brand-text em{-webkit-text-fill-color:#FF8A3D;color:#FF8A3D;}

.nav-links{display:flex;align-items:center;gap:26px;}
.nav-link{
  position:relative;display:inline-block;
  font-size:15px;font-weight:500;color:var(--ink-2);
  padding:8px 2px;text-decoration:none;
  transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;border-radius:2px;
  background:var(--grad-brand);transform:scaleX(0);transform-origin:left;
  transition:transform .24s ease;
}
.nav-link:hover{color:var(--brand);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--brand);font-weight:700;}
.nav-link.active::after{transform:scaleX(1);}
.site-header.is-scrolled .nav-link{color:rgba(255,247,242,.76);}
.site-header.is-scrolled .nav-link:hover{color:#fff;}
.site-header.is-scrolled .nav-link.active{color:#fff;}

.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.icon-btn{
  width:44px;height:44px;border-radius:var(--r-pill);
  border:1.5px solid var(--line);background:#fff;color:var(--ink-2);
  display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;transition:all .22s ease;
}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);background:#FFF1E9;}
.site-header.is-scrolled .icon-btn{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.18);color:#FFF7F2;}
.site-header.is-scrolled .icon-btn:hover{background:rgba(255,138,61,.2);border-color:#FF8A3D;color:#fff;}

.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  min-width:132px;padding:13px 26px;border:0;border-radius:var(--r-pill);
  background:var(--grad-brand);background-size:160% 160%;
  color:#fff;font-size:15px;font-weight:700;line-height:1.2;letter-spacing:.2px;
  text-decoration:none;cursor:pointer;
  box-shadow:0 10px 22px rgba(240,78,35,.24);
  transition:transform .22s ease,box-shadow .22s ease,background-position .22s ease;
}
.btn-brand:hover{color:#fff;transform:translateY(-2px);background-position:80% 20%;box-shadow:0 16px 32px rgba(240,78,35,.3);}
.btn-brand:active{transform:translateY(0);}
.btn-sm-pill{padding:10px 20px;min-width:112px;font-size:14px;}

.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  min-width:132px;padding:12px 24px;border-radius:var(--r-pill);
  border:1.5px solid var(--brand);background:#fff;color:var(--brand);
  font-size:15px;font-weight:700;line-height:1.2;text-decoration:none;cursor:pointer;
  transition:all .22s ease;
}
.btn-ghost:hover{background:#FFF1E9;color:var(--brand);transform:translateY(-2px);box-shadow:0 12px 26px rgba(240,78,35,.16);}
.btn-ghost:active{transform:translateY(0);}

.nav-toggle{
  display:none;width:44px;height:44px;border:1.5px solid var(--line);background:#fff;
  border-radius:12px;padding:0;cursor:pointer;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
  transition:all .2s ease;
}
.nav-toggle span{display:block;width:19px;height:2px;border-radius:2px;background:var(--ink);transition:all .24s ease;}
.site-header.is-scrolled .nav-toggle{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.18);}
.site-header.is-scrolled .nav-toggle span{background:#FFF7F2;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

.search-bar{display:none;padding:0 0 16px;}
.search-bar.is-open{display:block;}
.search-bar input{
  width:100%;height:48px;padding:0 20px;border-radius:var(--r-sm);
  border:1.5px solid var(--line);background:#fff;color:var(--ink);font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-bar input::placeholder{color:var(--ink-3);}
.search-bar input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(240,78,35,.18);}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;padding:150px 0 62px;
  background-image:
    linear-gradient(120deg,rgba(25,19,32,.9) 0%,rgba(240,78,35,.72) 62%,rgba(255,201,60,.5) 100%),
    url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  border-radius:0 0 var(--r-lg) var(--r-lg);
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;right:-120px;top:-90px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,201,60,.32),rgba(255,201,60,0) 68%);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,247,242,.72);margin-bottom:22px;}
.crumb a{color:rgba(255,247,242,.86);text-decoration:none;}
.crumb a:hover{color:#FFC93C;}
.crumb .sep{opacity:.6;}
.crumb .current{color:#FFC93C;}

.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.3);
  color:#FFF7F2;font-size:13px;font-weight:600;letter-spacing:.4px;
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
}
.page-hero h1{
  margin:20px 0 16px;
  font-size:clamp(32px,4.6vw,50px);font-weight:800;line-height:1.16;letter-spacing:-.5px;
  color:#FFF7F2;max-width:900px;
}
.page-hero h1 span{
  background:linear-gradient(135deg,#FFC93C 0%,#FF8A3D 100%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.page-hero .lead{max-width:720px;color:rgba(255,247,242,.86);font-size:clamp(16px,1.5vw,19px);line-height:1.75;margin:0 0 28px;}
.hero-btns{display:flex;flex-wrap:wrap;gap:12px;}
.hero-btns .btn-ghost{background:rgba(255,255,255,.94);}
.hero-meta{display:flex;flex-wrap:wrap;gap:26px;margin-top:32px;}
.hero-meta .hm-item{display:flex;align-items:center;gap:10px;color:rgba(255,247,242,.86);font-size:14px;}
.hero-meta .hm-item i{color:#FFC93C;}
.hero-meta .hm-item b{font-variant-numeric:tabular-nums;color:#fff;font-size:17px;font-weight:800;}

/* ---------- layout ---------- */
.main-wrap{padding:72px 0 96px;}
.layout-two-col{display:grid;grid-template-columns:264px minmax(0,1fr);gap:48px;align-items:start;}

.toc-col{position:sticky;top:104px;}
.toc-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px 20px;box-shadow:var(--sh-1);
}
.toc-title{font-size:13px;font-weight:700;letter-spacing:1.2px;color:var(--ink-3);text-transform:uppercase;margin:0 0 14px;}
.toc-nav{display:flex;flex-direction:column;gap:2px;border-left:1px solid var(--line);}
.toc-nav a{
  display:block;padding:8px 0 8px 16px;font-size:14.5px;color:var(--ink-2);
  border-left:3px solid transparent;margin-left:-2px;line-height:1.5;
  transition:all .2s ease;
}
.toc-nav a:hover{color:var(--brand);border-left-color:var(--brand-2);background:#FFF4EE;border-radius:0 10px 10px 0;}
.toc-side{
  margin-top:20px;padding-top:18px;border-top:1px dashed var(--line);
}
.toc-side p{font-size:13.5px;color:var(--ink-2);line-height:1.7;margin-bottom:14px;}
.btn-block-pill{width:100%;min-width:0;padding:12px 16px;font-size:14.5px;}

.doc-col{min-width:0;}
.doc-block{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:32px 34px;margin-bottom:20px;box-shadow:var(--sh-1);
  transition:box-shadow .26s ease,transform .26s ease;
}
.doc-block:hover{box-shadow:0 14px 34px rgba(240,78,35,.1);transform:translateY(-2px);}
.block-head{display:flex;align-items:center;gap:14px;margin-bottom:18px;}
.block-index{
  flex-shrink:0;width:44px;height:44px;border-radius:14px;
  background:linear-gradient(135deg,#FFF1E9,#FFE3D5);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:800;font-variant-numeric:tabular-nums;
}
.doc-block h2{font-size:clamp(20px,2.2vw,25px);font-weight:700;line-height:1.35;letter-spacing:-.2px;}
.doc-block > p{color:var(--ink-2);font-size:16px;line-height:1.9;}
.doc-block ul + p{margin-top:16px;}

.tick-list{display:flex;flex-direction:column;gap:12px;margin:18px 0 0;}
.tick-list li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;color:var(--ink-2);line-height:1.75;}
.tick-list li i{color:var(--teal);font-size:15px;margin-top:6px;flex-shrink:0;}
.tick-list li b{color:var(--ink);font-weight:700;}

.num-list{counter-reset:nl;display:flex;flex-direction:column;gap:14px;margin:18px 0 0;}
.num-list li{
  position:relative;padding-left:38px;font-size:15.5px;color:var(--ink-2);line-height:1.78;
}
.num-list li::before{
  counter-increment:nl;content:counter(nl,decimal-leading-zero);
  position:absolute;left:0;top:3px;
  width:26px;height:26px;border-radius:9px;
  background:#FFF1E9;color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:800;font-variant-numeric:tabular-nums;
}

.figure-card{
  margin:22px 0 0;border-radius:var(--r-sm);overflow:hidden;
  border:1px solid var(--line);background:#FFF9F5;
}
.figure-card img{width:100%;aspect-ratio:16/8;object-fit:cover;}
.figure-card figcaption{padding:12px 16px;font-size:13px;color:var(--ink-3);text-align:center;}

/* spec cards */
.spec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:20px;}
.spec-card{
  border:1px solid var(--line);border-radius:var(--r-sm);background:#FFFDFB;
  padding:18px 18px 8px;transition:all .24s ease;
}
.spec-card:hover{border-color:rgba(240,78,35,.36);box-shadow:var(--sh-2);transform:translateY(-3px);}
.spec-top{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:14px;}
.spec-top i{font-size:19px;color:var(--brand);}
.spec-chip{
  font-size:12px;font-weight:700;padding:4px 11px;border-radius:var(--r-pill);
  background:#E6FAF6;color:#00907E;border:1px solid rgba(0,191,166,.34);
}
.spec-row{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 0;border-top:1px solid var(--line);font-size:14px;
}
.spec-row:first-of-type{border-top:0;}
.spec-row .k{color:var(--ink-2);}
.spec-row .v{color:var(--teal);font-weight:700;font-variant-numeric:tabular-nums;white-space:nowrap;}

/* steps strip */
.step-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-top:20px;}
.step-item{
  border-radius:var(--r-sm);padding:18px 16px;
  background:linear-gradient(160deg,#FFF7F2 0%,#FFFFFF 100%);
  border:1px dashed rgba(240,78,35,.34);
}
.step-item span{display:block;font-size:12px;font-weight:800;color:var(--brand);letter-spacing:1px;margin-bottom:8px;font-variant-numeric:tabular-nums;}
.step-item h3{font-size:15.5px;font-weight:700;margin-bottom:6px;}
.step-item p{font-size:13.5px;color:var(--ink-2);line-height:1.7;margin:0;}

/* notice */
.notice{
  display:flex;gap:14px;align-items:flex-start;
  margin-top:20px;padding:16px 18px;border-radius:var(--r-sm);
  background:#FFF6EC;border-left:4px solid var(--amber);
}
.notice i{color:#E8951F;font-size:17px;margin-top:5px;flex-shrink:0;}
.notice p{font-size:14.5px;color:#7A5A2E;line-height:1.78;margin:0;}

/* voice */
.voice-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:20px;}
.voice-card{
  border:1px solid var(--line);border-radius:var(--r-sm);background:#fff;padding:18px;
  transition:all .24s ease;
}
.voice-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px);}
.voice-head{display:flex;align-items:center;gap:12px;margin-bottom:12px;}
.avatar{
  width:42px;height:42px;border-radius:50%;flex-shrink:0;
  background:var(--grad-teal);color:#fff;font-weight:800;font-size:15px;
  display:inline-flex;align-items:center;justify-content:center;
}
.voice-head .name{font-size:15px;font-weight:700;color:var(--ink);line-height:1.4;}
.voice-head .stars{font-size:12px;color:var(--amber);letter-spacing:1px;}
.voice-card p{font-size:14.5px;color:var(--ink-2);line-height:1.78;margin:0 0 10px;}
.voice-card .time{font-size:12.5px;color:var(--ink-3);font-variant-numeric:tabular-nums;}

/* faq */
.faq-accordion .accordion-item{
  border:1px solid var(--line);border-radius:var(--r-sm) !important;
  background:#fff;margin-bottom:12px;overflow:hidden;box-shadow:var(--sh-1);
}
.faq-accordion .accordion-button{
  width:100%;background:#fff;color:var(--ink);
  font-size:17px;font-weight:600;line-height:1.5;
  padding:18px 52px 18px 20px;border:0;border-radius:var(--r-sm);
  box-shadow:none;position:relative;
}
.faq-accordion .accordion-button:not(.collapsed){color:var(--brand);background:#FFF8F4;box-shadow:none;}
.faq-accordion .accordion-button:focus{box-shadow:0 0 0 3px rgba(240,78,35,.16);}
.faq-accordion .accordion-button::after{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  background-image:none;width:26px;height:26px;font-size:12px;
  display:inline-flex;align-items:center;justify-content:center;
  position:absolute;right:18px;top:50%;transform:translateY(-50%);
  color:var(--brand);background:#FFF1E9;border-radius:50%;
  transition:transform .24s ease;
}
.faq-accordion .accordion-button:not(.collapsed)::after{transform:translateY(-50%) rotate(45deg);}
.faq-accordion .accordion-item:has(.accordion-button:not(.collapsed)){border-color:rgba(240,78,35,.5);}
.faq-accordion .accordion-item:has(.accordion-button:not(.collapsed)) .accordion-button::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--grad-brand);
}
.faq-accordion .accordion-body{
  padding:4px 22px 20px 22px;font-size:15px;color:var(--ink-2);line-height:1.85;
}

/* cta band */
.cta-band{
  background:var(--dark);border-radius:var(--r-lg);
  padding:56px 40px;text-align:center;position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;left:-80px;bottom:-120px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(240,78,35,.42),rgba(240,78,35,0) 70%);
}
.cta-band::after{
  content:"";position:absolute;right:-70px;top:-110px;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,201,60,.24),rgba(255,201,60,0) 70%);
}
.cta-band .inner{position:relative;z-index:2;}
.cta-band h2{color:#FFF7F2;font-size:clamp(24px,3vw,34px);font-weight:800;line-height:1.28;margin-bottom:14px;}
.cta-band p{color:rgba(255,247,242,.76);font-size:16px;line-height:1.8;max-width:620px;margin:0 auto 28px;}
.cta-btns{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;}
.cta-btns .btn-ghost{background:transparent;color:#FFF7F2;border-color:rgba(255,247,242,.5);}
.cta-btns .btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff;border-color:#FFC93C;}
.cta-foot{margin-top:22px;font-size:13px;color:rgba(255,247,242,.56);}

.back-home{
  display:inline-flex;align-items:center;gap:8px;
  margin-top:26px;padding:11px 22px;border-radius:var(--r-pill);
  border:1.5px solid var(--line);background:#fff;color:var(--ink-2);
  font-size:14px;font-weight:600;text-decoration:none;
  transition:all .22s ease;
}
.back-home:hover{border-color:var(--brand);color:var(--brand);transform:translateX(-3px);}

/* footer */
.site-footer{background:var(--dark);color:rgba(255,247,242,.72);margin-top:96px;}
.footer-line{height:4px;background:var(--grad-brand);}
.footer-main{padding:64px 0 40px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand .brand-text{color:#FFF7F2;}
.footer-brand .brand-text em{-webkit-text-fill-color:#FF8A3D;color:#FF8A3D;}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,247,242,.62);max-width:330px;margin-bottom:20px;}
.footer-contact{display:flex;gap:12px;flex-wrap:wrap;}
.qr-box{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;
  width:92px;height:92px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.13);
  font-size:12px;color:rgba(255,247,242,.72);
}
.qr-box i{font-size:22px;color:#FFC93C;}
.footer-col h4{font-size:15px;font-weight:700;color:#FFF7F2;margin-bottom:18px;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{
  font-size:14px;color:rgba(255,247,242,.64);text-decoration:none;
  transition:all .2s ease;display:inline-block;
}
.footer-col a:hover{color:var(--brand-2);transform:translateX(-2px);}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0 28px;border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:rgba(255,247,242,.5);line-height:1.7;
}

/* responsive */
@media (max-width:1199.98px){
  .layout-two-col{grid-template-columns:236px minmax(0,1fr);gap:34px;}
}
@media (max-width:991.98px){
  .nav-links{
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:4px;
    background:#fff;padding:14px 20px 20px;
    border-radius:0 0 var(--r-md) var(--r-md);
    box-shadow:0 22px 44px rgba(27,20,22,.16);
    display:none;
  }
  .nav-links.is-open{display:flex;}
  .nav-links .nav-link{padding:12px 4px;border-bottom:1px solid var(--line);font-size:16px;}
  .nav-links .nav-link:last-child{border-bottom:0;}
  .nav-link::after{display:none;}
  .site-header.is-scrolled .nav-links .nav-link{color:var(--ink-2);}
  .site-header.is-scrolled .nav-links .nav-link.active{color:var(--brand);}
  .nav-toggle{display:inline-flex;}
  .btn-sm-pill{display:none;}

  .layout-two-col{grid-template-columns:1fr;gap:26px;}
  .toc-col{position:static;}
  .toc-card{display:block;}
  .main-wrap{padding:52px 0 72px;}
  .page-hero{padding:130px 0 48px;}
  .spec-grid{grid-template-columns:1fr;}
  .step-strip{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-brand{grid-column:1 / -1;}
  .site-footer{margin-top:72px;}
}
@media (max-width:767.98px){
  .container{padding:0 16px;}
  .doc-block{padding:24px 20px;border-radius:var(--r-sm);}
  .page-hero{border-radius:0 0 var(--r-md) var(--r-md);}
  .voice-grid{grid-template-columns:1fr;}
  .cta-band{padding:40px 22px;border-radius:var(--r-md);}
  .cta-btns .btn-brand,.cta-btns .btn-ghost{width:100%;}
  .hero-btns .btn-brand,.hero-btns .btn-ghost{width:100%;}
}
@media (max-width:575.98px){
  body{font-size:15.5px;}
  .brand-text{font-size:17px;}
  .step-strip{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-contact{width:100%;}
  .page-hero{padding:118px 0 40px;}
  .hero-meta{gap:16px;}
  .block-index{width:38px;height:38px;font-size:13px;}
  .faq-accordion .accordion-button{font-size:15.5px;padding:16px 48px 16px 16px;}
}

/* roulang page: category2 */
:root{
  --brand:#F04E23;
  --brand-2:#FF8A3D;
  --amber:#FFC93C;
  --teal:#00BFA6;
  --teal-light:#6BE3D0;
  --ink:#1B1416;
  --ink-2:#5C5257;
  --ink-3:#8C8188;
  --line:#EFE1D8;
  --bg:#FFF7F2;
  --card:#FFFFFF;
  --dark:#191320;
  --grad-brand:linear-gradient(135deg,#F04E23 0%,#FF8A3D 52%,#FFC93C 100%);
  --grad-teal:linear-gradient(135deg,#00BFA6 0%,#6BE3D0 100%);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-xl:32px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(27,20,22,.05);
  --sh-2:0 14px 34px rgba(240,78,35,.14);
  --sh-3:0 26px 60px rgba(27,20,22,.16);
  --ease:220ms ease;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color var(--ease);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;letter-spacing:-.3px;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(240,78,35,.4);outline-offset:2px;border-radius:8px;}

/* ============ 导航 ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1030;
  background:rgba(255,247,242,.55);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.45);
  box-shadow:0 2px 14px rgba(27,20,22,.06);
  transition:background 240ms ease,box-shadow 240ms ease,border-color 240ms ease;
}
.site-header.is-scrolled{
  background:var(--dark);
  border-bottom-color:rgba(255,255,255,.08);
  box-shadow:0 12px 34px rgba(27,20,22,.32);
}
.nav-inner{
  display:flex;
  align-items:center;
  gap:20px;
  height:84px;
  transition:height 240ms ease;
}
.site-header.is-scrolled .nav-inner{height:68px;}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;letter-spacing:-.4px;color:var(--ink);flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  background:var(--grad-brand);
  color:#fff;display:grid;place-items:center;font-size:17px;
  box-shadow:0 8px 18px rgba(240,78,35,.32);
}
.brand-text em{font-style:normal;color:var(--brand);}
.site-header.is-scrolled .brand{color:#fff;}
.site-header.is-scrolled .brand-text em{color:var(--amber);}

.nav-links{display:flex;align-items:center;gap:2px;margin-inline:auto;}
.nav-link{
  position:relative;
  padding:10px 14px;
  font-size:15px;
  font-weight:500;
  color:var(--ink-2);
  border-radius:var(--r-pill);
  white-space:nowrap;
  transition:color var(--ease),background var(--ease);
}
.nav-link:hover{color:var(--brand);background:rgba(240,78,35,.08);}
.nav-link.active{color:var(--brand);font-weight:700;}
.nav-link.active::after{
  content:"";
  position:absolute;left:14px;right:14px;bottom:2px;height:3px;
  border-radius:3px;background:var(--grad-brand);
}
.site-header.is-scrolled .nav-link{color:rgba(255,255,255,.76);}
.site-header.is-scrolled .nav-link:hover{color:#fff;background:rgba(255,255,255,.1);}
.site-header.is-scrolled .nav-link.active{color:#fff;}

.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.icon-btn{
  width:44px;height:44px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:rgba(255,255,255,.8);
  color:var(--ink-2);display:grid;place-items:center;font-size:16px;
  cursor:pointer;transition:all var(--ease);
}
.icon-btn:hover{color:var(--brand);border-color:rgba(240,78,35,.45);background:#fff;}
.site-header.is-scrolled .icon-btn{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.18);color:#fff;}
.site-header.is-scrolled .icon-btn:hover{background:rgba(255,255,255,.2);color:#fff;}

.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-width:132px;padding:14px 26px;
  border:none;border-radius:var(--r-pill);
  background:var(--grad-brand);
  background-size:150% 150%;
  color:#fff;font-size:15px;font-weight:700;letter-spacing:.2px;
  box-shadow:0 10px 24px rgba(240,78,35,.28);
  cursor:pointer;
  transition:transform var(--ease),box-shadow var(--ease),background-position var(--ease);
}
.btn-brand:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(240,78,35,.36);background-position:100% 0;color:#fff;}
.btn-brand:active{transform:translateY(0);box-shadow:0 8px 18px rgba(240,78,35,.26);}
.btn-brand i{font-size:14px;}
.btn-sm-pill{padding:11px 20px;min-width:112px;font-size:14px;}

.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-width:132px;padding:13px 26px;
  border:1.5px solid var(--brand);border-radius:var(--r-pill);
  background:#fff;color:var(--brand);font-size:15px;font-weight:700;
  cursor:pointer;transition:all var(--ease);
}
.btn-ghost:hover{background:rgba(240,78,35,.09);transform:translateY(-2px);color:var(--brand);}
.btn-ghost:active{transform:translateY(0);}

.hero-actions .btn-ghost.on-dark{
  border-color:rgba(255,255,255,.6);background:rgba(255,255,255,.08);color:#fff;
}
.hero-actions .btn-ghost.on-dark:hover{background:rgba(255,255,255,.18);border-color:#fff;}

.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:rgba(255,255,255,.8);
  cursor:pointer;padding:12px 11px;flex-direction:column;justify-content:space-between;
}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--ink);transition:background var(--ease);}
.site-header.is-scrolled .nav-toggle{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.18);}
.site-header.is-scrolled .nav-toggle span{background:#fff;}

.search-bar{display:none;}
.search-bar.is-open{display:block;padding:0 0 18px;}
.search-bar input{
  width:100%;height:48px;padding:0 20px;
  border:1.5px solid var(--line);border-radius:var(--r-md);
  background:#fff;font-size:15px;color:var(--ink);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.search-bar input::placeholder{color:var(--ink-3);}
.search-bar input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(240,78,35,.2);}

/* ============ 首屏视觉带 ============ */
.page-hero{
  position:relative;
  padding:180px 0 96px;
  overflow:hidden;
  background-color:var(--dark);
  background-image:
    linear-gradient(125deg,rgba(25,19,32,.92) 0%,rgba(25,19,32,.72) 38%,rgba(240,78,35,.78) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
}
.page-hero::before,
.page-hero::after{
  content:"";position:absolute;border-radius:50%;pointer-events:none;
}
.page-hero::before{
  width:520px;height:520px;right:-140px;top:-180px;
  background:radial-gradient(circle,rgba(255,201,60,.35),rgba(255,201,60,0) 68%);
}
.page-hero::after{
  width:420px;height:420px;left:-160px;bottom:-200px;
  background:radial-gradient(circle,rgba(0,191,166,.32),rgba(0,191,166,0) 70%);
}
.hero-inner{position:relative;z-index:2;max-width:880px;margin:0 auto;text-align:center;}
.breadcrumb-nav{
  display:flex;justify-content:center;align-items:center;gap:8px;
  font-size:13px;color:rgba(255,255,255,.7);margin-bottom:22px;flex-wrap:wrap;
}
.breadcrumb-nav a{color:rgba(255,255,255,.8);}
.breadcrumb-nav a:hover{color:var(--amber);}
.breadcrumb-nav .sep{opacity:.55;}
.breadcrumb-nav .current{color:var(--amber);}

.hero-title{
  font-size:clamp(32px,5vw,54px);
  font-weight:800;line-height:1.15;letter-spacing:-.5px;
  color:#fff;margin-bottom:20px;
}
.hero-title .hl{
  background:linear-gradient(120deg,#FFC93C,#FF8A3D 60%,#FFD980);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{
  font-size:clamp(16px,1.6vw,20px);line-height:1.75;
  color:rgba(255,255,255,.86);
  max-width:680px;margin:0 auto 32px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;}

/* ============ 通用板块 ============ */
.section{padding:92px 0;}
.section-flush{padding-top:0;}
.section-head{max-width:740px;margin-bottom:44px;}
.section-head.center{margin-inline:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.12em;
  color:var(--brand);margin-bottom:14px;
}
.section-title{
  font-size:clamp(24px,3.2vw,38px);
  font-weight:700;line-height:1.25;margin-bottom:16px;
}
.section-sub{font-size:15px;line-height:1.85;color:var(--ink-2);}
.divider{height:1px;background:var(--line);border:0;margin:0;}

/* ============ 数据徽章带 ============ */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  margin-top:-58px;position:relative;z-index:6;
}
.stat-badge{
  background:var(--card);
  border:1.5px solid rgba(0,191,166,.32);
  border-radius:var(--r-lg);
  padding:24px 22px;
  box-shadow:var(--sh-1);
  transition:transform 260ms ease,box-shadow 260ms ease,border-color 260ms ease;
}
.stat-badge:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(240,78,35,.4);}
.stat-top{display:flex;align-items:center;gap:10px;margin-bottom:12px;}
.stat-dot{
  width:28px;height:28px;border-radius:50%;
  background:rgba(107,227,208,.22);
  color:var(--teal);display:grid;place-items:center;font-size:13px;
}
.stat-num{
  font-size:30px;font-weight:800;line-height:1.1;
  font-variant-numeric:tabular-nums;letter-spacing:-.5px;
}
.stat-unit{font-size:14px;font-weight:700;color:var(--teal);margin-left:4px;}
.stat-label{font-size:13px;color:var(--ink-3);line-height:1.6;}

/* ============ 功能双列卡 ============ */
.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.feature-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:32px 30px;
  box-shadow:var(--sh-1);
  transition:transform 260ms ease,box-shadow 260ms ease,border-color 260ms ease;
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(240,78,35,.28);}
.fc-icon{
  width:52px;height:52px;border-radius:16px;
  background:var(--grad-brand);color:#fff;
  display:grid;place-items:center;font-size:20px;
  box-shadow:0 10px 22px rgba(240,78,35,.26);
  margin-bottom:20px;
}
.fc-title{font-size:21px;font-weight:600;line-height:1.4;margin-bottom:10px;}
.feature-card:hover .fc-title{color:var(--brand);}
.fc-text{font-size:15px;line-height:1.8;color:var(--ink-2);margin-bottom:18px;}
.fc-list li{
  position:relative;padding-left:20px;
  font-size:14px;line-height:1.9;color:var(--ink-2);
}
.fc-list li::before{
  content:"";position:absolute;left:0;top:.85em;
  width:8px;height:8px;border-radius:50%;
  background:var(--grad-teal);
}

/* ============ 数据链路 ============ */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.flow-step{
  position:relative;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:30px 24px;
  box-shadow:var(--sh-1);
  transition:transform 260ms ease,box-shadow 260ms ease;
}
.flow-step:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.flow-num{
  width:42px;height:42px;border-radius:14px;
  background:var(--grad-teal);color:#fff;
  display:grid;place-items:center;
  font-weight:800;font-size:16px;
  font-variant-numeric:tabular-nums;
  margin-bottom:18px;
}
.flow-title{font-size:18px;font-weight:600;margin-bottom:8px;}
.flow-text{font-size:14px;line-height:1.8;color:var(--ink-2);}

/* ============ 图文交替 ============ */
.split{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center;}
.split + .split{margin-top:72px;}
.split.reverse .split-media{order:2;}
.split-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:var(--r-xl);
  box-shadow:var(--sh-3);
}
.split-body .split-list{margin-top:20px;display:grid;gap:10px;}
.split-body .split-list li{
  position:relative;padding-left:22px;
  font-size:15px;line-height:1.8;color:var(--ink-2);
}
.split-body .split-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);
}
.split-body .section-sub{margin-bottom:6px;}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,7fr);gap:48px;align-items:start;}
.faq-accordion .accordion-item{
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  margin-bottom:12px;
  background:var(--card);
  box-shadow:var(--sh-1);
  transition:border-color 260ms ease,box-shadow 260ms ease;
}
.faq-accordion .accordion-item:has(.accordion-button:not(.collapsed)){
  border-color:rgba(240,78,35,.55);
  box-shadow:0 14px 30px rgba(240,78,35,.12);
}
.faq-accordion .accordion-button{
  position:relative;
  width:100%;
  padding:18px 52px 18px 20px;
  background:var(--card);
  border:0;border-radius:0;
  font-size:17px;font-weight:600;color:var(--ink);
  text-align:left;
  box-shadow:none !important;
  transition:color var(--ease),padding-left var(--ease);
}
.faq-accordion .accordion-button:not(.collapsed){color:var(--brand);}
.faq-accordion .accordion-button::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:4px;
  border-radius:0 4px 4px 0;background:var(--grad-brand);
  transform:scaleY(0);transform-origin:center;
  transition:transform 260ms ease;
}
.faq-accordion .accordion-button:not(.collapsed)::before{transform:scaleY(1);}
.faq-accordion .accordion-button::after{
  content:"＋";
  font-family:inherit;font-size:22px;line-height:1;
  color:var(--brand);background-image:none;
  width:auto;height:auto;
  display:flex;align-items:center;justify-content:center;
  transform:none;
  position:absolute;right:20px;top:50%;translate:0 -50%;
  transition:transform 260ms ease;
}
.faq-accordion .accordion-button:not(.collapsed)::after{transform:rotate(45deg);}
.faq-accordion .accordion-body{
  padding:0 20px 20px;
  font-size:15px;line-height:1.85;color:var(--ink-2);
  border-top:1px solid var(--line);
  padding-top:16px;
}
.faq-side .mini-card{
  margin-top:24px;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--sh-1);
}
.faq-side .mini-card h3{font-size:17px;font-weight:600;margin-bottom:8px;}
.faq-side .mini-card p{font-size:14px;line-height:1.8;color:var(--ink-2);margin-bottom:16px;}

/* ============ CTA 带 ============ */
.cta-section{padding:0 0 96px;}
.cta-band{
  position:relative;overflow:hidden;
  background:var(--dark);
  border-radius:var(--r-xl);
  padding:64px 40px;
  text-align:center;
  color:#fff;
  box-shadow:var(--sh-3);
}
.cta-band::before{
  content:"";position:absolute;width:420px;height:420px;border-radius:50%;
  right:-120px;top:-160px;
  background:radial-gradient(circle,rgba(240,78,35,.45),rgba(240,78,35,0) 70%);
}
.cta-band::after{
  content:"";position:absolute;width:360px;height:360px;border-radius:50%;
  left:-140px;bottom:-180px;
  background:radial-gradient(circle,rgba(0,191,166,.35),rgba(0,191,166,0) 70%);
}
.cta-band > *{position:relative;z-index:2;}
.cta-band .section-title{color:#fff;margin-bottom:14px;}
.cta-note{font-size:13px;color:rgba(255,255,255,.62);margin-top:22px;}
.cta-band .hero-actions{margin-top:28px;}

.back-home{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--brand);
  margin-top:26px;
}
.back-home:hover{color:var(--brand-2);}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:rgba(255,255,255,.7);position:relative;}
.footer-line{height:3px;background:var(--grad-brand);}
.footer-main{padding:68px 0 48px;}
.footer-grid{display:grid;grid-template-columns:4fr 2.4fr 2.4fr 2.4fr;gap:40px;}
.footer-brand .brand{color:#fff;margin-bottom:18px;}
.footer-brand .brand-text em{color:var(--amber);}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:340px;margin-bottom:22px;}
.footer-contact{display:flex;gap:14px;flex-wrap:wrap;}
.qr-box{
  display:flex;align-items:center;gap:10px;
  padding:12px 16px;border-radius:var(--r-md);
  border:1px dashed rgba(255,255,255,.22);
  font-size:13px;color:rgba(255,255,255,.72);
}
.qr-box i{color:var(--amber);font-size:18px;}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:18px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.62);transition:color var(--ease),transform var(--ease);display:inline-block;}
.footer-col a:hover{color:var(--brand-2);transform:translateX(2px);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 30px;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .split{gap:40px;}
}
@media (max-width:991px){
  .nav-links{
    position:fixed;top:0;right:0;
    height:100vh;width:290px;
    background:var(--dark);
    flex-direction:column;align-items:stretch;
    padding:100px 20px 32px;gap:6px;
    transform:translateX(102%);
    transition:transform 280ms ease;
    margin:0;z-index:1040;
    overflow-y:auto;
    box-shadow:-18px 0 44px rgba(27,20,22,.36);
  }
  .nav-links.is-open{transform:translateX(0);}
  .nav-links .nav-link{color:rgba(255,255,255,.8);padding:14px 16px;font-size:16px;}
  .nav-links .nav-link:hover{color:#fff;background:rgba(255,255,255,.1);}
  .nav-links .nav-link.active{color:#fff;}
  .nav-links .nav-link.active::after{left:16px;right:auto;width:26px;bottom:6px;}
  .nav-toggle{display:flex;}
  .section{padding:72px 0;}
  .stat-strip{grid-template-columns:repeat(2,1fr);margin-top:-46px;}
  .feature-grid{grid-template-columns:1fr;}
  .flow{grid-template-columns:repeat(2,1fr);}
  .split,.split.reverse{grid-template-columns:1fr;gap:32px;}
  .split.reverse .split-media{order:0;}
  .split + .split{margin-top:56px;}
  .faq-layout{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .page-hero{padding:150px 0 84px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .page-hero{padding:136px 0 72px;}
  .hero-actions .btn-brand,.hero-actions .btn-ghost{width:100%;}
  .stat-strip{grid-template-columns:1fr;gap:14px;}
  .flow{grid-template-columns:1fr;}
  .feature-card{padding:26px 22px;}
  .cta-band{padding:48px 22px;border-radius:var(--r-lg);}
  .cta-section{padding-bottom:64px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .faq-accordion .accordion-button{font-size:16px;padding:16px 48px 16px 18px;}
}
@media (max-width:575px){
  .brand{font-size:18px;}
  .brand-mark{width:34px;height:34px;font-size:15px;}
  .nav-actions{gap:8px;}
  .btn-sm-pill{padding:10px 14px;min-width:0;font-size:13px;}
  .icon-btn,.nav-toggle{width:40px;height:40px;}
  .stat-num{font-size:26px;}
}

/* roulang page: category3 */
:root{
  --brand:#F04E23;
  --brand-2:#FF8A3D;
  --amber:#FFC93C;
  --teal:#00BFA6;
  --teal-light:#6BE3D0;
  --ink:#1B1416;
  --ink-2:#5C5257;
  --ink-3:#8C8188;
  --line:#EFE1D8;
  --bg:#FFF7F2;
  --surface:#FFFFFF;
  --dark:#191320;
  --grad-brand:linear-gradient(135deg,#F04E23 0%,#FF8A3D 55%,#FFC93C 100%);
  --grad-teal:linear-gradient(135deg,#00BFA6 0%,#6BE3D0 100%);
  --r-xs:10px;
  --r-sm:16px;
  --r-md:24px;
  --r-lg:32px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(27,20,22,.05);
  --sh-2:0 14px 34px rgba(240,78,35,.14);
  --sh-3:0 26px 60px rgba(27,20,22,.16);
  --sec:96px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-2);}
button,input{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.3px;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.num{font-variant-numeric:tabular-nums;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- 通用组件 ---------- */
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-width:148px;padding:14px 28px;border:0;border-radius:var(--r-pill);
  background:var(--grad-brand);color:#fff;font-size:16px;font-weight:600;
  box-shadow:0 8px 20px rgba(240,78,35,.24);
  transition:transform .22s ease,box-shadow .22s ease,background-position .22s ease;
  background-size:160% 160%;background-position:0% 50%;
}
.btn-brand:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 32px rgba(240,78,35,.32);background-position:100% 50%;}
.btn-brand:active{transform:translateY(0);box-shadow:0 6px 16px rgba(240,78,35,.24);}
.btn-brand:focus-visible,.btn-ghost:focus-visible,.icon-btn:focus-visible,.nav-toggle:focus-visible{outline:3px solid rgba(240,78,35,.4);outline-offset:2px;}
.btn-sm-pill{padding:10px 20px;font-size:14px;min-width:auto;box-shadow:0 6px 14px rgba(240,78,35,.22);}

.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-width:148px;padding:13px 26px;border-radius:var(--r-pill);
  background:#fff;color:var(--brand);border:1.5px solid var(--brand);
  font-size:16px;font-weight:600;
  transition:transform .22s ease,background .22s ease,box-shadow .22s ease;
}
.btn-ghost:hover{background:#FFF1E9;color:var(--brand);transform:translateY(-2px);box-shadow:0 12px 26px rgba(240,78,35,.16);}
.btn-ghost:active{transform:translateY(0);}

.btn-row{display:flex;flex-wrap:wrap;gap:12px;}

.tag-pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 14px;border-radius:var(--r-pill);
  background:rgba(0,191,166,.1);color:#049583;
  font-size:13px;font-weight:600;line-height:1.6;
}
.tag-pill.is-warm{background:rgba(240,78,35,.09);color:var(--brand);}
.tag-pill.is-amber{background:rgba(255,201,60,.22);color:#9A6B00;}

.sec{padding:var(--sec) 0;}
.sec-head{max-width:720px;margin-bottom:44px;}
.sec-head .eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:2px;color:var(--brand);text-transform:uppercase;margin-bottom:12px;}
.sec-head h2{font-size:clamp(24px,3.2vw,38px);font-weight:700;line-height:1.28;margin-bottom:14px;}
.sec-head p{color:var(--ink-2);font-size:16px;line-height:1.85;}

/* ---------- 页头导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1040;
  background:rgba(255,247,242,.55);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.45);
  box-shadow:0 4px 24px rgba(27,20,22,.06);
  transition:background .24s ease,box-shadow .24s ease;
}
.site-header .container{position:relative;}
.nav-inner{display:flex;align-items:center;gap:24px;height:84px;transition:height .24s ease;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:800;font-size:19px;letter-spacing:-.4px;}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:38px;height:38px;border-radius:12px;background:var(--grad-brand);
  display:inline-flex;align-items:center;justify-content:center;color:#fff;font-size:16px;
  box-shadow:0 6px 16px rgba(240,78,35,.28);flex:none;
}
.brand-text em{font-style:normal;color:var(--brand);}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-link{
  position:relative;display:inline-block;padding:10px 14px;border-radius:var(--r-pill);
  color:var(--ink-2);font-size:15px;font-weight:500;transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--brand);background:rgba(240,78,35,.07);}
.nav-link.active{color:var(--brand);font-weight:700;}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  border-radius:2px;background:var(--grad-brand);
}
.nav-actions{display:flex;align-items:center;gap:12px;}
.icon-btn{
  width:44px;height:44px;border-radius:50%;border:1px solid var(--line);
  background:#fff;color:var(--ink-2);display:inline-flex;align-items:center;justify-content:center;
  transition:color .2s ease,border-color .2s ease,transform .2s ease;flex:none;
}
.icon-btn:hover{color:var(--brand);border-color:rgba(240,78,35,.4);transform:translateY(-1px);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;flex-direction:column;justify-content:center;align-items:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink-2);transition:transform .24s ease,opacity .24s ease;}
.nav-toggle.is-active span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-active span:nth-child(2){opacity:0;}
.nav-toggle.is-active span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

.search-bar{
  display:none;padding:0 0 16px;
}
.search-bar.is-open{display:block;}
.search-bar input{
  width:100%;height:48px;border-radius:var(--r-sm);border:1.5px solid var(--line);
  background:#fff;padding:0 18px;font-size:15px;color:var(--ink);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-bar input::placeholder{color:var(--ink-3);}
.search-bar input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(240,78,35,.2);}

.site-header.is-scrolled{background:var(--dark);border-bottom-color:rgba(255,255,255,.08);box-shadow:0 10px 30px rgba(27,20,22,.28);}
.site-header.is-scrolled .nav-inner{height:68px;}
.site-header.is-scrolled .brand{color:#fff;}
.site-header.is-scrolled .brand-text em{color:var(--brand-2);}
.site-header.is-scrolled .nav-link{color:rgba(255,255,255,.78);}
.site-header.is-scrolled .nav-link:hover{color:#fff;background:rgba(255,255,255,.09);}
.site-header.is-scrolled .nav-link.active{color:var(--amber);}
.site-header.is-scrolled .icon-btn{background:rgba(255,255,255,.09);border-color:rgba(255,255,255,.16);color:#fff;}
.site-header.is-scrolled .nav-toggle{background:rgba(255,255,255,.09);border-color:rgba(255,255,255,.16);}
.site-header.is-scrolled .nav-toggle span{background:#fff;}
.site-header.is-scrolled .search-bar input{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.18);color:#fff;}
.site-header.is-scrolled .search-bar input::placeholder{color:rgba(255,255,255,.55);}

/* ---------- 面包屑 + 内页首屏 ---------- */
.page-hero{
  position:relative;
  padding:150px 0 88px;
  background-image:linear-gradient(180deg,rgba(255,247,242,.94) 0%,rgba(255,247,242,.86) 45%,var(--bg) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;right:-120px;top:80px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,138,61,.22),rgba(255,201,60,0) 70%);pointer-events:none;
}
.breadcrumb-nav{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:26px;position:relative;z-index:2;}
.breadcrumb-nav a{color:var(--ink-3);}
.breadcrumb-nav a:hover{color:var(--brand);}
.breadcrumb-nav span.sep{color:#D9C8BC;}
.breadcrumb-nav .current{color:var(--brand);}
.page-hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;position:relative;z-index:2;}
.page-hero h1{font-size:clamp(30px,4.4vw,50px);font-weight:800;line-height:1.16;margin:16px 0 18px;}
.page-hero h1 em{font-style:normal;background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;}
.page-hero .lead{font-size:clamp(16px,1.6vw,19px);line-height:1.8;color:var(--ink-2);max-width:560px;margin-bottom:28px;}
.page-hero-media{position:relative;}
.page-hero-media img{
  width:100%;border-radius:var(--r-lg);object-fit:cover;aspect-ratio:4/3;
  box-shadow:var(--sh-3);
}
.page-hero-media::before{
  content:"";position:absolute;inset:0;border-radius:var(--r-lg);
  background:linear-gradient(135deg,rgba(240,78,35,.2),rgba(255,201,60,.12) 60%,rgba(0,191,166,.14));
  z-index:1;
}
.float-badge{
  position:absolute;left:-18px;bottom:26px;z-index:3;
  background:#fff;border-radius:var(--r-sm);padding:12px 18px;
  box-shadow:var(--sh-3);border:1px solid var(--line);
  display:flex;align-items:center;gap:12px;
}
.float-badge i{color:var(--teal);font-size:18px;}
.float-badge strong{display:block;font-size:18px;font-weight:800;color:var(--ink);line-height:1.3;}
.float-badge small{font-size:12px;color:var(--ink-3);}

/* ---------- 数据徽章带 ---------- */
.stats-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  margin-top:56px;position:relative;z-index:2;
}
.stat-item{
  background:#fff;border:1.5px solid rgba(0,191,166,.28);border-radius:var(--r-sm);
  padding:20px 22px;box-shadow:var(--sh-1);display:flex;align-items:center;gap:14px;
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.stat-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(240,78,35,.35);}
.stat-dot{
  width:40px;height:40px;border-radius:50%;background:rgba(0,191,166,.12);
  color:var(--teal);display:flex;align-items:center;justify-content:center;font-size:16px;flex:none;
}
.stat-item b{font-size:22px;font-weight:800;color:var(--ink);letter-spacing:-.5px;}
.stat-item b i{font-style:normal;font-size:13px;font-weight:600;color:var(--ink-3);margin-left:3px;}
.stat-item span{display:block;font-size:13px;color:var(--ink-3);line-height:1.6;}

/* ---------- 安全能力卡片网格 ---------- */
.grid-3{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
}
.safe-card{
  background:var(--surface);border-radius:var(--r-md);padding:30px 28px;
  box-shadow:var(--sh-1);border:1px solid var(--line);
  display:flex;flex-direction:column;gap:14px;
  transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;
  position:relative;overflow:hidden;
}
.safe-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(240,78,35,.28);}
.safe-card .ico{
  width:48px;height:48px;border-radius:14px;background:rgba(240,78,35,.08);
  color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:19px;
}
.safe-card h3{font-size:21px;font-weight:600;line-height:1.4;}
.safe-card p{color:var(--ink-2);font-size:15px;line-height:1.8;}
.safe-card .link-more{font-size:14px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px;margin-top:auto;}
.safe-card .link-more i{transition:transform .22s ease;}
.safe-card:hover .link-more i{transform:translateX(4px);}
.safe-card.is-wide{
  grid-column:span 2;
  background:linear-gradient(135deg,#FFF3EC 0%,#FFFFFF 60%);
  flex-direction:row;align-items:center;gap:28px;padding:34px 32px;
}
.safe-card.is-wide .wide-text{flex:1;display:flex;flex-direction:column;gap:12px;}
.safe-card.is-wide img{width:230px;border-radius:var(--r-md);object-fit:cover;aspect-ratio:4/3;flex:none;}

/* ---------- 设置流程 ---------- */
.flow-wrap{background:#fff;border-radius:var(--r-lg);padding:56px 48px;box-shadow:var(--sh-1);border:1px solid var(--line);}
.flow-list{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:flow;}
.flow-item{position:relative;padding-top:26px;}
.flow-item::before{
  content:"";position:absolute;top:8px;left:0;right:26px;height:2px;
  background:linear-gradient(90deg,rgba(240,78,35,.5),rgba(255,201,60,.28));border-radius:2px;
}
.flow-item:last-child::before{right:auto;width:26px;}
.flow-item .idx{
  position:absolute;left:0;top:-6px;width:28px;height:28px;border-radius:50%;
  background:var(--grad-brand);color:#fff;font-size:13px;font-weight:700;
  display:flex;align-items:center;justify-content:center;box-shadow:0 6px 14px rgba(240,78,35,.28);
}
.flow-item h3{font-size:18px;font-weight:600;margin:14px 0 10px;}
.flow-item p{font-size:14.5px;color:var(--ink-2);line-height:1.8;}

/* ---------- 场景图文 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px;}
.scene-card{
  background:#fff;border-radius:var(--r-md);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .26s ease,box-shadow .26s ease;
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.scene-card .thumb{overflow:hidden;}
.scene-card .thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s ease;}
.scene-card:hover .thumb img{transform:scale(1.04);}
.scene-card .body{padding:26px 28px 30px;}
.scene-card h3{font-size:20px;font-weight:600;margin:12px 0 10px;}
.scene-card p{font-size:15px;color:var(--ink-2);line-height:1.8;}
.scene-card ul{margin-top:14px;display:flex;flex-direction:column;gap:8px;}
.scene-card li{display:flex;gap:10px;font-size:14.5px;color:var(--ink-2);line-height:1.75;}
.scene-card li i{color:var(--teal);margin-top:6px;font-size:12px;flex:none;}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:48px;align-items:start;}
.faq-acc .accordion-item{
  position:relative;border:1px solid var(--line);border-radius:var(--r-sm);
  background:#fff;margin-bottom:12px;overflow:hidden;box-shadow:var(--sh-1);
  transition:border-color .24s ease,box-shadow .24s ease;
}
.faq-acc .accordion-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--grad-brand);
  opacity:0;transition:opacity .24s ease;
}
.faq-acc .accordion-item:has(.accordion-button:not(.collapsed)){border-color:rgba(240,78,35,.4);box-shadow:0 10px 26px rgba(240,78,35,.1);}
.faq-acc .accordion-item:has(.accordion-button:not(.collapsed))::before{opacity:1;}
.faq-acc .accordion-button{
  background:#fff;color:var(--ink);font-size:17px;font-weight:600;line-height:1.6;
  padding:18px 22px;box-shadow:none;border:0;
}
.faq-acc .accordion-button:not(.collapsed){color:var(--brand);background:#fff;box-shadow:none;}
.faq-acc .accordion-button:focus{box-shadow:none;outline:3px solid rgba(240,78,35,.32);outline-offset:-3px;}
.faq-acc .accordion-button::after{
  content:"+";font-family:inherit;font-size:19px;font-weight:700;line-height:1;
  width:28px;height:28px;border-radius:50%;background:rgba(240,78,35,.09);color:var(--brand);
  display:flex;align-items:center;justify-content:center;flex:none;margin-left:16px;
  background-image:none;transition:transform .26s ease,background .26s ease;
}
.faq-acc .accordion-button:not(.collapsed)::after{transform:rotate(45deg);background:rgba(240,78,35,.16);}
.faq-acc .accordion-body{padding:0 22px 20px 22px;color:var(--ink-2);font-size:15px;line-height:1.85;}
.faq-aside{
  background:#fff;border-radius:var(--r-md);padding:32px 30px;border:1px solid var(--line);box-shadow:var(--sh-1);
}
.faq-aside h3{font-size:20px;font-weight:600;margin-bottom:14px;}
.faq-aside p{font-size:15px;color:var(--ink-2);line-height:1.85;margin-bottom:20px;}
.aside-list{display:flex;flex-direction:column;gap:12px;margin-bottom:24px;}
.aside-list li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:var(--ink-2);}
.aside-list i{color:var(--brand);margin-top:6px;font-size:12px;flex:none;}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;background:var(--dark);border-radius:var(--r-lg);
  padding:66px 48px;text-align:center;color:#fff;overflow:hidden;
  box-shadow:var(--sh-3);
}
.cta-band::before{
  content:"";position:absolute;left:-80px;top:-70px;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(240,78,35,.4),rgba(240,78,35,0) 70%);
}
.cta-band::after{
  content:"";position:absolute;right:-60px;bottom:-90px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(0,191,166,.3),rgba(0,191,166,0) 70%);
}
.cta-band .inner{position:relative;z-index:2;}
.cta-band h2{color:#fff;font-size:clamp(24px,3.1vw,36px);font-weight:700;line-height:1.3;margin-bottom:14px;}
.cta-band p{color:rgba(255,255,255,.72);font-size:16px;line-height:1.8;max-width:640px;margin:0 auto 30px;}
.cta-band .btn-row{justify-content:center;}
.cta-band .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.42);}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff;}
.cta-note{margin-top:22px;font-size:13px;color:rgba(255,255,255,.5);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);margin-top:96px;position:relative;}
.footer-line{height:3px;background:var(--grad-brand);}
.footer-main{padding:72px 0 44px;}
.footer-grid{display:grid;grid-template-columns:4fr 2.4fr 2.4fr 2.4fr;gap:44px;}
.footer-brand .brand{color:#fff;margin-bottom:18px;}
.footer-brand .brand-text em{color:var(--brand-2);}
.footer-desc{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.6);max-width:340px;margin-bottom:24px;}
.footer-contact{display:flex;gap:14px;flex-wrap:wrap;}
.qr-box{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;
  width:104px;height:104px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
  color:rgba(255,255,255,.72);font-size:12px;
  transition:background .22s ease,transform .22s ease;
}
.qr-box i{font-size:24px;color:var(--amber);}
.qr-box:hover{background:rgba(255,255,255,.1);transform:translateY(-2px);}
.footer-col h4{color:#fff;font-size:16px;font-weight:600;margin-bottom:18px;}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a{color:rgba(255,255,255,.62);font-size:14.5px;display:inline-block;transition:color .2s ease,transform .2s ease;}
.footer-col a:hover{color:var(--brand-2);transform:translateX(2px);}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0 32px;
  font-size:13px;color:rgba(255,255,255,.45);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .container{max-width:1000px;}
  .page-hero-grid{gap:36px;}
  .footer-grid{grid-template-columns:3.4fr 2.4fr 2.4fr 2.4fr;gap:32px;}
}
@media (max-width:991.98px){
  :root{--sec:72px;}
  .nav-links{
    position:fixed;top:0;right:0;height:100vh;width:min(330px,88vw);
    background:var(--dark);flex-direction:column;align-items:stretch;
    padding:100px 24px 32px;gap:6px;transform:translateX(100%);
    transition:transform .3s ease;z-index:1050;box-shadow:-20px 0 50px rgba(27,20,22,.4);
  }
  .nav-links.is-open{transform:translateX(0);}
  .nav-link{display:block;padding:14px 12px;color:rgba(255,255,255,.82);font-size:16px;border-radius:12px;}
  .nav-link:hover{background:rgba(255,255,255,.08);color:#fff;}
  .nav-link.active{color:var(--amber);background:rgba(255,255,255,.06);}
  .nav-link.active::after{display:none;}
  .nav-toggle{display:flex;}
  .page-hero{padding:132px 0 72px;}
  .page-hero-grid{grid-template-columns:1fr;gap:36px;}
  .page-hero-media{order:2;}
  .float-badge{left:auto;right:14px;bottom:-18px;}
  .stats-strip{grid-template-columns:repeat(2,1fr);}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .safe-card.is-wide{grid-column:span 2;flex-direction:column;align-items:flex-start;}
  .safe-card.is-wide img{width:100%;}
  .flow-list{grid-template-columns:repeat(2,1fr);gap:30px 22px;}
  .faq-layout{grid-template-columns:1fr;gap:34px;}
  .flow-wrap{padding:40px 30px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .cta-band{padding:52px 30px;}
}
@media (max-width:575.98px){
  :root{--sec:56px;}
  .container{padding:0 16px;}
  .page-hero{padding:118px 0 60px;}
  .page-hero h1{font-size:clamp(26px,7.6vw,34px);}
  .btn-row{flex-direction:column;align-items:stretch;}
  .btn-brand,.btn-ghost{width:100%;}
  .nav-actions .btn-sm-pill{display:none;}
  .stats-strip{grid-template-columns:1fr;gap:14px;}
  .grid-3{grid-template-columns:1fr;}
  .safe-card.is-wide{grid-column:span 1;}
  .flow-list{grid-template-columns:1fr;}
  .flow-item::before{display:none;}
  .scene-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .cta-band{padding:44px 22px;}
  .flow-wrap{padding:32px 22px;}
}