/* roulang page: index */
:root{
  --brand:#FF6A00;
  --brand-dark:#E05500;
  --brand-grad:linear-gradient(135deg,#FF6A00 0%,#FF3D6E 100%);
  --cyan:#00C2B2;
  --ink:#101318;
  --bg:#F7F5F2;
  --white:#FFFFFF;
  --title:#14181F;
  --text:#4A5261;
  --muted:#8A919E;
  --line:#E8E4DE;
  --line-dark:rgba(255,255,255,.10);
  --r-lg:24px;
  --r-md:18px;
  --r-sm:14px;
  --r-xs:12px;
  --sh-1:0 8px 24px rgba(16,19,24,.06);
  --sh-2:0 18px 40px rgba(16,19,24,.12);
  --sec-y:88px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;object-fit:cover;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-dark);}
button{font-family:inherit;}
h1,h2,h3,h4{color:var(--title);font-weight:800;line-height:1.35;margin:0;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding-inline:32px;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 6px 20px rgba(16,19,24,.06);}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:76px;}
.brand{display:inline-flex;align-items:center;gap:11px;color:var(--title);font-weight:800;font-size:18.5px;letter-spacing:.2px;}
.brand:hover{color:var(--title);}
.brand-mark{
  width:34px;height:34px;border-radius:11px;background:var(--brand-grad);
  display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr;gap:3px;
  padding:8px;box-shadow:0 6px 14px rgba(255,106,0,.28);flex:0 0 auto;
}
.brand-mark i{background:rgba(255,255,255,.95);border-radius:1.5px;display:block;}
.brand-text{white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:28px;}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--text);
  padding:8px 0;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:100%;bottom:-1px;height:3px;
  border-radius:3px;background:var(--brand-grad);transition:right .2s ease;
}
.nav-link:hover{color:var(--brand);}
.nav-link:hover::after{right:42%;}
.nav-link.active{color:var(--brand);font-weight:600;}
.nav-link.active::after{right:0;}
.nav-cta{margin-left:6px;padding:11px 22px;font-size:14.5px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-xs);
  border:1px solid var(--line);background:#fff;cursor:pointer;
  align-items:center;justify-content:center;flex-direction:column;gap:4px;padding:0;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--title);transition:transform .2s ease,opacity .2s ease;}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ============ 按钮 ============ */
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-sm);border:0;cursor:pointer;
  background:var(--brand-grad);color:#fff;font-size:15px;font-weight:600;
  box-shadow:0 10px 22px rgba(255,106,0,.26);
  transition:transform .18s ease,box-shadow .18s ease,color .18s ease;
}
.btn-brand:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 30px rgba(255,106,0,.34);}
.btn-brand:active{transform:translateY(0);box-shadow:0 8px 18px rgba(255,106,0,.24);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-sm);cursor:pointer;
  background:#fff;border:1px solid var(--brand);color:var(--brand);
  font-size:15px;font-weight:600;transition:background .18s ease,transform .18s ease,color .18s ease;
}
.btn-ghost:hover{background:rgba(255,106,0,.08);color:var(--brand-dark);transform:translateY(-2px);}
.btn-ghost-dark{
  background:transparent;border:1px solid rgba(255,255,255,.32);color:#F2F4F7;
}
.btn-ghost-dark:hover{background:rgba(255,255,255,.10);color:#fff;border-color:rgba(255,255,255,.5);}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand);
  font-weight:600;font-size:15px;background:none;border:0;padding:0;cursor:pointer;
}
.btn-text .arw{transition:transform .18s ease;display:inline-block;}
.btn-text:hover{color:var(--brand-dark);}
.btn-text:hover .arw{transform:translateX(3px);}
.btn-on-grad{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 30px;border-radius:var(--r-sm);border:0;cursor:pointer;
  background:#fff;color:var(--brand);font-size:15px;font-weight:700;box-shadow:0 12px 26px rgba(16,19,24,.18);
  transition:transform .18s ease,box-shadow .18s ease;
}
.btn-on-grad:hover{color:var(--brand-dark);transform:translateY(-2px);box-shadow:0 18px 34px rgba(16,19,24,.24);}

/* ============ 通用区块 ============ */
.section{padding:var(--sec-y) 0;}
.section-white{background:#fff;}
.section-dark{background:var(--ink);color:#F2F4F7;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:46px;}
.sec-title{
  position:relative;padding-left:18px;margin:0;
  font-size:clamp(22px,2.4vw,32px);font-weight:800;color:var(--title);
}
.sec-title::before{
  content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:5px;
  border-radius:3px;background:var(--brand-grad);
}
.section-dark .sec-title{color:#fff;}
.sec-sub{margin-top:12px;color:var(--muted);font-size:15px;max-width:62ch;}
.section-dark .sec-sub{color:#A8B0BD;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13.5px;font-weight:600;
  letter-spacing:.08em;color:var(--brand);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--brand-grad);}

/* 徽章 */
.badges{display:flex;flex-wrap:wrap;gap:12px;}
.badge-chip{
  display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:999px;
  border:1px solid rgba(0,194,178,.55);background:rgba(0,194,178,.08);
  color:#D9FFFB;font-size:13.5px;
}
.badge-chip b{color:#fff;font-size:16px;font-weight:800;font-variant-numeric:tabular-nums;}
.badge-chip--light{border-color:rgba(0,194,178,.45);background:rgba(0,194,178,.10);color:#0C6E66;}
.badge-chip--light b{color:#0B4F4A;}
.tag{
  display:inline-flex;align-items:center;padding:5px 13px;border-radius:999px;
  background:rgba(255,106,0,.10);color:var(--brand-dark);font-size:12.5px;font-weight:600;
  line-height:1.6;
}
.meta{display:flex;align-items:center;flex-wrap:wrap;gap:12px;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;}
.meta-dot{width:3px;height:3px;border-radius:50%;background:#C9C4BC;display:inline-block;}

/* ============ Hero ============ */
.hero{position:relative;background:var(--ink);overflow:hidden;}
.hero::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  opacity:.34;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(112deg,rgba(16,19,24,.96) 0%,rgba(16,19,24,.80) 46%,rgba(16,19,24,.52) 100%);
}
.hero-inner{position:relative;z-index:2;padding:104px 0 92px;}
.hero h1{
  color:#fff;font-size:clamp(28px,4.1vw,50px);line-height:1.24;
  letter-spacing:-.5px;max-width:17em;margin:0 0 20px;
}
.grad-text{background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero-sub{color:#C4CBD6;font-size:clamp(15px,1.15vw,17px);max-width:56ch;line-height:1.9;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:34px 0 40px;}
.hero-divider{height:1px;background:var(--line-dark);margin:0 0 30px;}

/* ============ 痛点 ============ */
.pain-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:48px;align-items:center;}
.pain-list{display:flex;flex-direction:column;gap:18px;}
.pain-item{
  display:flex;gap:18px;padding:24px 26px;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-md);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.pain-item:hover{transform:translateY(-3px);box-shadow:var(--sh-1);border-color:#DED8D0;}
.pain-num{
  font-size:15px;font-weight:800;color:var(--brand);letter-spacing:.06em;
  font-variant-numeric:tabular-nums;flex:0 0 auto;padding-top:2px;
}
.pain-item h3{font-size:17.5px;font-weight:700;margin:0 0 6px;}
.pain-item p{font-size:14.5px;color:var(--text);}
.figure-card{
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);
  aspect-ratio:4/3;background:#EDE9E4;
}
.figure-card img{width:100%;height:100%;}

/* ============ 方案 zigzag ============ */
.solution-wrap{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:20px 36px;box-shadow:var(--sh-1);
}
.zig{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center;padding:34px 0;}
.zig + .zig{border-top:1px solid var(--line);}
.zig-media{
  border-radius:var(--r-lg);overflow:hidden;aspect-ratio:3/2;background:#EDE9E4;
}
.zig-media img{width:100%;height:100%;transition:transform .22s ease;}
.zig:hover .zig-media img{transform:scale(1.04);}
.zig.reverse .zig-media{order:2;}
.zig h3{font-size:21px;font-weight:800;margin:0 0 12px;}
.zig p{font-size:15px;margin-bottom:18px;}
.point-list{display:flex;flex-direction:column;gap:10px;margin-bottom:20px;}
.point-list li{position:relative;padding-left:20px;font-size:14.5px;color:var(--text);}
.point-list li::before{
  content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:50%;
  background:var(--brand-grad);
}

/* ============ 数据区 ============ */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;}
.stat-card{
  padding:26px 24px;border-radius:var(--r-md);
  border:1px solid var(--line-dark);background:rgba(255,255,255,.03);
}
.stat-num{
  font-size:clamp(32px,3.6vw,46px);font-weight:800;color:#fff;
  line-height:1.1;font-variant-numeric:tabular-nums;letter-spacing:-.5px;
}
.stat-num em{font-style:normal;font-size:16px;font-weight:600;color:var(--cyan);margin-left:5px;}
.stat-label{margin-top:8px;font-size:13.5px;color:#A8B0BD;}
.stat-bar{height:4px;border-radius:4px;background:rgba(255,255,255,.10);margin-top:16px;overflow:hidden;}
.stat-bar i{display:block;height:100%;border-radius:4px;background:var(--cyan);}

/* ============ 最新信息 CMS ============ */
.news-grid{display:grid;grid-template-columns:1.12fr 1fr;gap:32px;align-items:start;}
.news-main{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);color:inherit;
  transition:transform .18s ease,box-shadow .18s ease;
}
.news-main:hover{transform:translateY(-4px);box-shadow:var(--sh-2);color:inherit;}
.news-main .thumb{aspect-ratio:16/10;overflow:hidden;background:#EDE9E4;}
.news-main .thumb img{width:100%;height:100%;transition:transform .22s ease;}
.news-main:hover .thumb img{transform:scale(1.04);}
.news-main .body{padding:24px 26px 28px;}
.news-main h3{font-size:21px;font-weight:800;margin:14px 0 10px;line-height:1.5;transition:color .18s ease;}
.news-main:hover h3{color:var(--brand);}
.news-main .desc{
  font-size:14.5px;color:var(--text);margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-side{display:flex;flex-direction:column;}
.news-item{
  display:block;padding:20px 4px;border-bottom:1px dashed var(--line);color:inherit;
  transition:padding-left .18s ease;
}
.news-item:last-child{border-bottom:0;}
.news-item:hover{color:inherit;padding-left:10px;}
.news-item-title{
  font-size:16px;font-weight:600;color:var(--title);line-height:1.6;margin-bottom:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .18s ease;
}
.news-item:hover .news-item-title{color:var(--brand);}
.empty{
  text-align:center;padding:66px 24px;background:#fff;
  border:1px dashed var(--line);border-radius:var(--r-lg);
}
.empty-mark{
  width:56px;height:56px;margin:0 auto 18px;border-radius:16px;
  border:2px solid var(--line);position:relative;
}
.empty-mark::before,.empty-mark::after{
  content:"";position:absolute;background:var(--line);border-radius:2px;
}
.empty-mark::before{left:14px;right:14px;top:22px;height:2px;}
.empty-mark::after{left:14px;right:22px;top:32px;height:2px;}
.empty p{color:var(--muted);font-size:15px;}

/* ============ 证言 ============ */
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.quote-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:30px 28px;transition:transform .18s ease,box-shadow .18s ease;
}
.quote-card:hover{transform:translateY(-4px);box-shadow:var(--sh-1);}
.quote-top{display:flex;align-items:center;gap:14px;margin-bottom:18px;}
.avatar{
  width:48px;height:48px;border-radius:15px;background:var(--brand-grad);
  display:grid;place-items:center;color:#fff;font-weight:800;font-size:17px;flex:0 0 auto;
}
.quote-name{font-size:15px;font-weight:700;color:var(--title);}
.quote-role{font-size:13px;color:var(--muted);}
.quote-text{font-size:14.5px;line-height:1.9;color:var(--text);}
.quote-score{margin-top:16px;display:flex;gap:5px;}
.quote-score i{width:16px;height:4px;border-radius:3px;background:var(--cyan);display:block;}

/* ============ FAQ ============ */
.faq-list{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);
}
.faq-item + .faq-item{border-top:1px solid var(--line);}
.faq-q{
  width:100%;background:none;border:0;cursor:pointer;text-align:left;
  padding:22px 28px 22px 32px;position:relative;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  font-size:16.5px;font-weight:600;color:var(--title);line-height:1.6;
  transition:color .18s ease;
}
.faq-q::before{
  content:"";position:absolute;left:14px;top:50%;transform:translateY(-50%);
  width:4px;height:0;border-radius:2px;background:var(--brand-grad);
  transition:height .2s ease;
}
.faq-item.open .faq-q{color:var(--brand);}
.faq-item.open .faq-q::before{height:26px;}
.faq-arrow{
  width:10px;height:10px;flex:0 0 auto;margin-right:6px;
  border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);
  transform:rotate(45deg);transition:transform .2s ease,border-color .2s ease;
}
.faq-item.open .faq-arrow{transform:rotate(-135deg);border-color:var(--brand);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a p{padding:0 60px 24px 32px;font-size:14.8px;color:var(--text);}
.faq-item.open .faq-a{max-height:340px;}

/* ============ CTA ============ */
.cta-band{padding:0 0 var(--sec-y);}
.cta-inner{
  position:relative;border-radius:var(--r-lg);padding:58px 40px;text-align:center;
  background:var(--brand-grad);box-shadow:0 22px 48px rgba(255,61,110,.22);overflow:hidden;
}
.cta-inner::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 18% 20%,rgba(255,255,255,.22),transparent 42%);
}
.cta-inner > *{position:relative;z-index:2;}
.cta-inner h2{color:#fff;font-size:clamp(22px,2.6vw,34px);margin-bottom:14px;}
.cta-inner p{color:rgba(255,255,255,.92);font-size:15.5px;max-width:60ch;margin:0 auto 28px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:#A8B0BD;padding:74px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px;}
.footer-brand{display:inline-flex;align-items:center;gap:11px;color:#fff;font-weight:800;font-size:18px;margin-bottom:18px;}
.footer-brand:hover{color:#fff;}
.footer-desc{font-size:14.5px;line-height:1.9;color:#A8B0BD;max-width:36ch;}
.f-title{color:var(--brand);font-size:14px;font-weight:700;letter-spacing:.06em;margin:0 0 18px;}
.f-links a{display:block;color:#A8B0BD;font-size:14.5px;padding:7px 0;}
.f-links a:hover{color:#fff;}
.f-note{font-size:14px;color:#8A919E;padding:7px 0;}
.footer-bottom{
  margin-top:56px;border-top:1px solid var(--line-dark);padding:22px 0 26px;
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8A919E;
}
.footer-bottom a{color:#A8B0BD;}
.footer-bottom a:hover{color:#fff;}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .stat-grid{gap:20px;}
  .zig{gap:40px;}
}
@media (max-width:991px){
  :root{--sec-y:64px;}
  .container{padding-inline:20px;}
  .nav-toggle{display:inline-flex;}
  .nav-links{
    position:fixed;top:86px;left:16px;right:16px;
    flex-direction:column;align-items:stretch;gap:0;
    background:#fff;border-radius:var(--r-md);box-shadow:var(--sh-2);
    padding:14px;display:none;max-height:calc(100vh - 110px);overflow-y:auto;
  }
  .nav-links.open{display:flex;}
  .nav-link{
    display:flex;align-items:center;min-height:48px;padding:0 16px;border-radius:var(--r-xs);
    font-size:15.5px;
  }
  .nav-link::after{
    left:0;right:auto;top:50%;bottom:auto;width:4px;height:20px;border-radius:3px;
    transform:translateY(-50%);opacity:0;transition:opacity .18s ease;
  }
  .nav-link:hover::after{right:auto;opacity:.55;}
  .nav-link.active::after{right:auto;opacity:1;}
  .nav-link.active{background:rgba(255,106,0,.07);}
  .nav-cta{width:100%;margin:12px 0 0;height:48px;}
  .hero-inner{padding:72px 0 66px;}
  .hero h1{max-width:none;}
  .pain-grid{grid-template-columns:1fr;gap:32px;}
  .zig{grid-template-columns:1fr;gap:26px;padding:28px 0;}
  .zig.reverse .zig-media{order:-1;}
  .solution-wrap{padding:16px 22px;}
  .stat-grid{grid-template-columns:1fr 1fr;}
  .news-grid{grid-template-columns:1fr;}
  .quote-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:34px;}
  .faq-a p{padding-right:28px;}
}
@media (max-width:575px){
  :root{--sec-y:56px;}
  .brand-text{font-size:16px;}
  .hero-actions{flex-direction:column;align-items:stretch;gap:12px;}
  .hero-actions .btn-brand,.hero-actions .btn-ghost{width:100%;}
  .stat-grid{grid-template-columns:1fr 1fr;gap:16px;}
  .stat-card{padding:20px 18px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .cta-inner{padding:42px 22px;}
  .cta-inner .btn-on-grad{width:100%;}
  .faq-q{padding:18px 20px 18px 28px;font-size:15.5px;}
  .faq-a p{padding:0 20px 20px 28px;}
  .news-main .body{padding:20px 20px 24px;}
  .pain-item{padding:20px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
}

/* roulang page: article */
:root{
  --brand:#FF6A00;
  --brand-deep:#E05500;
  --brand-2:#FF3D6E;
  --grad:linear-gradient(135deg,#FF6A00 0%,#FF3D6E 100%);
  --cyan:#00C2B2;
  --ink:#101318;
  --paper:#F7F5F2;
  --white:#FFFFFF;
  --title:#14181F;
  --text:#4A5261;
  --muted:#8A919E;
  --line:#E8E4DE;
  --line-dark:rgba(255,255,255,.10);
  --dark-text:#F2F4F7;
  --dark-sub:#A8B0BD;
  --r-lg:24px;
  --r-md:18px;
  --r-btn:14px;
  --r-sm:12px;
  --sh-1:0 8px 24px rgba(16,19,24,.06);
  --sh-2:0 18px 40px rgba(16,19,24,.12);
  --sp:88px;
  --ratio:3/2;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-deep);}
button{font-family:inherit;}
h1,h2,h3,h4{color:var(--title);font-weight:800;letter-spacing:.2px;margin:0;}
p{margin:0 0 16px;}
::selection{background:rgba(255,106,0,.18);}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:32px;
  padding-right:32px;
}
@media (max-width:767.98px){
  .container{padding-left:20px;padding-right:20px;}
}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(247,245,242,.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:box-shadow .2s ease,border-color .2s ease,background .2s ease;
}
.site-header.scrolled{
  background:rgba(255,255,255,.96);
  border-bottom-color:var(--line);
  box-shadow:0 6px 20px rgba(16,19,24,.07);
}
.nav-wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:76px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.brand-mark{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  grid-template-rows:repeat(2,1fr);
  gap:3px;
  width:32px;
  height:32px;
  padding:4px;
  border-radius:10px;
  background:var(--grad);
  box-shadow:0 6px 16px rgba(255,106,0,.28);
}
.brand-mark i{
  display:block;
  background:rgba(255,255,255,.92);
  border-radius:2px;
}
.brand-mark i:nth-child(2){opacity:.72;}
.brand-mark i:nth-child(3){opacity:.72;}
.brand-text{
  font-size:19px;
  font-weight:800;
  color:var(--title);
  letter-spacing:.4px;
  white-space:nowrap;
}
.brand:hover .brand-text{color:var(--brand);}
.nav-links{
  display:flex;
  align-items:center;
  gap:28px;
}
.nav-link{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:#3A4150;
  padding:8px 0;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:3px;
  border-radius:3px;
  background:var(--grad);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .2s ease;
}
.nav-link:hover{color:var(--brand);}
.nav-link:hover::after{transform:scaleX(.6);}
.nav-link.active{color:var(--brand);font-weight:700;}
.nav-link.active::after{transform:scaleX(1);}
.nav-cta{
  margin-left:8px;
  padding:11px 22px;
  font-size:15px;
  font-weight:700;
  color:#fff !important;
  background:var(--grad);
  border-radius:var(--r-btn);
  box-shadow:0 8px 20px rgba(255,106,0,.26);
  transition:transform .18s ease,box-shadow .18s ease;
}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 14px 28px rgba(255,106,0,.32);color:#fff;}
.nav-cta:active{transform:translateY(0);}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line);
  border-radius:12px;
  background:#fff;
  padding:0;
  cursor:pointer;
}
.nav-toggle span{
  display:block;
  width:18px;height:2px;
  margin:4px auto;
  background:var(--title);
  border-radius:2px;
  transition:transform .2s ease,opacity .2s ease;
}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

/* ---------- 按钮 ---------- */
.btn-brand{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 28px;
  font-size:15px;
  font-weight:700;
  color:#fff !important;
  background:var(--grad);
  border:none;
  border-radius:var(--r-btn);
  box-shadow:0 10px 24px rgba(255,106,0,.26);
  transition:transform .18s ease,box-shadow .18s ease;
  cursor:pointer;
}
.btn-brand:hover{transform:translateY(-2px);box-shadow:0 18px 36px rgba(255,106,0,.32);color:#fff;}
.btn-brand:active{transform:translateY(0);}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 26px;
  font-size:15px;
  font-weight:700;
  color:var(--brand) !important;
  background:#fff;
  border:1px solid var(--brand);
  border-radius:var(--r-btn);
  transition:background .18s ease,transform .18s ease,color .18s ease;
}
.btn-ghost:hover{background:rgba(255,106,0,.08);transform:translateY(-2px);color:var(--brand-deep) !important;}
.btn-text{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:700;
  color:var(--brand);
}
.btn-text::after{
  content:"→";
  transition:transform .18s ease;
}
.btn-text:hover::after{transform:translateX(3px);}
.btn-light{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:13px 30px;
  font-size:15px;
  font-weight:700;
  color:var(--brand) !important;
  background:#fff;
  border-radius:var(--r-btn);
  box-shadow:0 12px 28px rgba(16,19,24,.18);
  transition:transform .18s ease,box-shadow .18s ease;
}
.btn-light:hover{transform:translateY(-2px);box-shadow:0 18px 36px rgba(16,19,24,.24);}

/* ---------- 文章头部 ---------- */
.article-hero{
  position:relative;
  padding:44px 0 40px;
  background:var(--paper);
  background-image:
    radial-gradient(rgba(16,19,24,.055) 1px,transparent 1px);
  background-size:22px 22px;
  overflow:hidden;
}
.article-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(ellipse at 88% -10%,rgba(255,106,0,.12),transparent 58%);
  pointer-events:none;
}
.article-hero .container{position:relative;z-index:1;}
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--muted);
  margin-bottom:18px;
}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:#C9C3BB;}
.crumb .now{color:var(--brand);font-weight:600;max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px;}
.tag-pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:6px 14px;
  font-size:13px;
  font-weight:600;
  color:var(--brand);
  background:rgba(255,106,0,.08);
  border:1px solid rgba(255,106,0,.22);
  border-radius:999px;
}
.tag-pill.cyan{
  color:#0B8F85;
  background:rgba(0,194,178,.08);
  border-color:rgba(0,194,178,.34);
}
.article-hero h1{
  font-size:40px;
  line-height:1.4;
  max-width:900px;
  margin-bottom:22px;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:14px;
  font-size:14px;
  color:var(--muted);
  padding-top:6px;
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#CFC9C1;}
.article-meta strong{color:var(--title);font-weight:700;font-variant-numeric:tabular-nums;}

/* ---------- 主体布局 ---------- */
.main-section{padding:8px 0 var(--sp);}
.card-surface{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
}
.article-body-card{padding:44px 46px 50px;}
.article-content{max-width:760px;}
.article-content > *:first-child{margin-top:0;}
.article-content p{font-size:16px;line-height:1.9;color:var(--text);margin:0 0 20px;}
.article-content h2{
  position:relative;
  font-size:26px;
  line-height:1.5;
  margin:44px 0 18px;
  padding-left:16px;
}
.article-content h2::before{
  content:"";
  position:absolute;
  left:0;top:6px;bottom:6px;
  width:5px;
  border-radius:3px;
  background:var(--grad);
}
.article-content h3{
  position:relative;
  font-size:19px;
  line-height:1.6;
  margin:32px 0 14px;
  padding-left:14px;
}
.article-content h3::before{
  content:"";
  position:absolute;
  left:0;top:7px;bottom:7px;
  width:4px;
  border-radius:3px;
  background:var(--grad);
}
.article-content ul,.article-content ol{
  margin:0 0 22px;
  padding-left:0;
  list-style:none;
}
.article-content ul li,.article-content ol li{
  position:relative;
  padding-left:22px;
  margin-bottom:12px;
  line-height:1.85;
}
.article-content ul li::before{
  content:"";
  position:absolute;
  left:4px;top:11px;
  width:7px;height:7px;
  border-radius:50%;
  background:var(--brand);
}
.article-content ol{counter-reset:olc;}
.article-content ol li{counter-increment:olc;}
.article-content ol li::before{
  content:counter(olc);
  position:absolute;
  left:0;top:2px;
  width:20px;
  height:20px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:12px;
  font-weight:700;
  color:#fff;
  background:var(--brand);
  border-radius:6px;
}
.article-content blockquote{
  margin:26px 0;
  padding:20px 24px;
  background:#FBF8F4;
  border-left:4px solid var(--brand);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:#3C434F;
  font-size:16px;
}
.article-content blockquote p:last-child{margin-bottom:0;}
.article-content img{
  border-radius:var(--r-md);
  margin:26px auto;
  box-shadow:var(--sh-1);
}
.article-content figure{margin:26px 0;}
.article-content figcaption{
  text-align:center;
  font-size:13px;
  color:var(--muted);
  margin-top:10px;
}
.article-content hr{
  border:none;
  height:1px;
  background:var(--line);
  margin:36px 0;
}
.article-content pre,.article-content code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.article-content pre{
  background:#FBF8F4;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  padding:18px 20px;
  overflow:auto;
  font-size:14px;
  line-height:1.7;
  margin:0 0 22px;
}
.article-content table{
  width:100%;
  border-collapse:collapse;
  margin:0 0 24px;
  font-size:15px;
  font-variant-numeric:tabular-nums;
}
.article-content th,.article-content td{
  border:1px solid var(--line);
  padding:12px 14px;
  text-align:left;
}
.article-content th{background:#FBF8F4;color:var(--title);font-weight:700;}

.empty-state{
  text-align:center;
  padding:56px 24px;
}
.empty-icon{
  width:64px;height:64px;
  margin:0 auto 18px;
  border:2px solid var(--line);
  border-radius:18px;
  position:relative;
}
.empty-icon::before,.empty-icon::after{
  content:"";
  position:absolute;
  background:var(--line);
}
.empty-icon::before{left:16px;right:16px;top:26px;height:2px;}
.empty-icon::after{left:16px;right:26px;top:36px;height:2px;}
.empty-state h2{font-size:22px;margin-bottom:10px;}
.empty-state p{color:var(--muted);margin-bottom:22px;}

/* ---------- 侧栏 ---------- */
.side-sticky{
  position:sticky;
  top:100px;
  display:flex;
  flex-direction:column;
  gap:22px;
}
.side-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  padding:24px 24px 20px;
}
.side-title{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:16px;
  font-weight:800;
  color:var(--title);
  margin-bottom:16px;
}
.side-title::before{
  content:"";
  width:4px;
  height:16px;
  border-radius:3px;
  background:var(--grad);
}
.toc-list{list-style:none;margin:0;padding:0;}
.toc-list li + li{border-top:1px solid var(--line);}
.toc-list a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:11px 2px;
  font-size:14px;
  color:#3A4150;
}
.toc-list a::after{
  content:"›";
  color:var(--muted);
  font-size:16px;
  transition:transform .18s ease,color .18s ease;
}
.toc-list a:hover{color:var(--brand);}
.toc-list a:hover::after{color:var(--brand);transform:translateX(3px);}
.rel-list{list-style:none;margin:0;padding:0;}
.rel-list li + li{border-top:1px solid var(--line);}
.rel-list a{
  display:block;
  padding:13px 2px;
  font-size:15px;
  font-weight:600;
  color:var(--title);
  line-height:1.6;
}
.rel-list a:hover{color:var(--brand);}
.rel-list .rel-meta{
  display:block;
  margin-top:5px;
  font-size:12.5px;
  font-weight:400;
  color:var(--muted);
  font-variant-numeric:tabular-nums;
}
.side-facts{list-style:none;margin:0;padding:0;font-size:14px;}
.side-facts li{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:10px 0;
  border-bottom:1px dashed var(--line);
}
.side-facts li:last-child{border-bottom:none;}
.side-facts span:last-child{color:var(--title);font-weight:700;}
.cta-card{
  background:var(--ink);
  border:none;
  border-radius:var(--r-lg);
  padding:26px 24px;
  position:relative;
  overflow:hidden;
}
.cta-card::before{
  content:"";
  position:absolute;
  inset:0;
  border-radius:var(--r-lg);
  padding:1px;
  background:var(--grad);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;
  mask-composite:exclude;
  pointer-events:none;
}
.cta-card h3{color:#fff;font-size:18px;margin-bottom:10px;}
.cta-card p{color:var(--dark-sub);font-size:14px;line-height:1.8;margin-bottom:18px;}
.cta-card .btn-brand{width:100%;}

/* ---------- 底部推荐 ---------- */
.related-section{padding:0 0 var(--sp);}
.sec-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:28px;
  flex-wrap:wrap;
}
.sec-head h2{
  position:relative;
  font-size:28px;
  padding-left:16px;
}
.sec-head h2::before{
  content:"";
  position:absolute;
  left:0;top:6px;bottom:6px;
  width:5px;
  border-radius:3px;
  background:var(--grad);
}
.mini-card{
  display:flex;
  gap:18px;
  align-items:center;
  height:100%;
  padding:18px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.mini-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#F0DCC8;}
.mini-thumb{
  width:104px;
  flex-shrink:0;
  aspect-ratio:var(--ratio);
  border-radius:var(--r-sm);
  overflow:hidden;
  background:#EFEBE6;
}
.mini-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .2s ease;}
.mini-card:hover .mini-thumb img{transform:scale(1.04);}
.mini-body h3{
  font-size:16px;
  line-height:1.6;
  margin-bottom:8px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.mini-card:hover .mini-body h3{color:var(--brand);}
.mini-body .rel-meta{font-size:12.5px;color:var(--muted);}

/* ---------- CTA 带 ---------- */
.cta-band{
  background:var(--ink);
  padding:72px 0;
  position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(ellipse at 50% 130%,rgba(255,106,0,.28),transparent 62%);
  pointer-events:none;
}
.cta-band .inner{
  position:relative;
  z-index:1;
  text-align:center;
  max-width:720px;
  margin:0 auto;
}
.cta-band h2{color:#fff;font-size:32px;margin-bottom:14px;}
.cta-band p{color:var(--dark-sub);font-size:16px;margin-bottom:28px;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink);
  color:var(--dark-sub);
  padding:64px 0 0;
  border-top:1px solid var(--line-dark);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  font-size:18px;
  font-weight:800;
  color:#fff;
  margin-bottom:14px;
}
.footer-brand:hover{color:var(--brand);}
.footer-desc{font-size:14px;line-height:1.85;color:var(--dark-sub);margin-bottom:14px;max-width:330px;}
.f-title{font-size:14px;color:var(--brand);font-weight:700;margin-bottom:16px;letter-spacing:.5px;}
.f-links{display:flex;flex-direction:column;gap:11px;}
.f-links a{font-size:14px;color:var(--dark-sub);}
.f-links a:hover{color:#fff;}
.f-note{font-size:13px;color:#8A919E;line-height:1.8;margin:0 0 8px;}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  border-top:1px solid var(--line-dark);
  padding:20px 0 24px;
  font-size:13px;
  color:#7C848F;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .article-hero h1{font-size:34px;}
  .brand-text{font-size:17px;}
  .nav-links{gap:20px;}
  .nav-link{font-size:14px;}
}
@media (max-width:991.98px){
  :root{--sp:64px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .article-body-card{padding:32px 28px 36px;}
  .side-sticky{position:static;top:auto;}
  .cta-band h2{font-size:26px;}
}
@media (max-width:767.98px){
  .nav-toggle{display:block;}
  .nav-links{
    position:absolute;
    left:20px;
    right:20px;
    top:calc(100% + 8px);
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:10px 16px 18px;
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--r-md);
    box-shadow:var(--sh-2);
    display:none;
  }
  .nav-links.open{display:flex;}
  .nav-link{
    display:flex;
    align-items:center;
    min-height:48px;
    font-size:15px;
    border-bottom:1px solid var(--line);
    padding:0 4px;
  }
  .nav-link::after{display:none;}
  .nav-link.active{
    border-left:4px solid var(--brand);
    border-radius:4px;
    padding-left:12px;
  }
  .nav-links .nav-cta{
    margin:16px 0 0;
    width:100%;
    min-height:48px;
    display:flex;
    align-items:center;
    justify-content:center;
  }
  .nav-wrap{position:relative;min-height:68px;}
  .article-hero{padding:28px 0 26px;}
  .article-hero h1{font-size:28px;line-height:1.45;}
  .article-body-card{padding:24px 20px 28px;}
  .article-content h2{font-size:22px;margin-top:34px;}
  .article-content h3{font-size:17px;}
  .sec-head h2{font-size:22px;}
  .mini-card{flex-direction:column;align-items:stretch;}
  .mini-thumb{width:100%;}
  .cta-band{padding:56px 0;}
  .cta-band h2{font-size:22px;}
  .btn-brand,.btn-ghost,.btn-light{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:519.98px){
  .article-hero h1{font-size:26px;}
  .crumb .now{max-width:180px;}
  .article-meta{font-size:13px;gap:10px;}
}

/* roulang page: category1 */
:root{
  --brand:#FF6A00;
  --brand-deep:#E05500;
  --signal:#00C2B2;
  --grad:linear-gradient(135deg,#FF6A00 0%,#FF3D6E 100%);
  --bg:#F7F5F2;
  --surface:#FFFFFF;
  --dark:#101318;
  --text:#14181F;
  --body:#4A5261;
  --muted:#8A919E;
  --dark-text:#F2F4F7;
  --dark-sub:#A8B0BD;
  --line:#E8E4DE;
  --r-xl:28px;
  --r-lg:24px;
  --r-md:18px;
  --r-sm:14px;
  --r-xs:12px;
  --shadow:0 8px 24px rgba(16,19,24,.06);
  --shadow-hover:0 18px 40px rgba(16,19,24,.12);
  --sec-gap:88px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--body);
  background:var(--bg);
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--brand-deep)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:800;line-height:1.35}
p{margin:0}
ul{margin:0;padding:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}

.container{max-width:1200px;padding-left:32px;padding-right:32px}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.site-header.is-stuck{
  border-bottom-color:var(--line);
  box-shadow:0 8px 24px rgba(16,19,24,.06);
}
.nav-wrap{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:74px;
}
.brand{
  display:flex;
  align-items:center;
  gap:11px;
  color:var(--text);
  font-weight:800;
  font-size:18px;
  letter-spacing:.2px;
  white-space:nowrap;
}
.brand:hover{color:var(--text)}
.brand-mark{
  width:36px;height:36px;flex:0 0 36px;
  display:grid;
  grid-template-columns:1fr 1fr;
  grid-template-rows:1fr 1fr;
  gap:4px;
  padding:6px;
  border-radius:11px;
  background:var(--grad);
  box-shadow:0 6px 16px rgba(255,106,0,.28);
}
.brand-mark i{display:block;background:#fff;border-radius:3px;opacity:.96}
.brand-mark i:nth-child(2){opacity:.55;border-radius:50%}
.brand-mark i:nth-child(3){opacity:.72}
.brand-mark i:nth-child(4){opacity:.9;border-radius:50%}
.brand-text{background:linear-gradient(135deg,#14181F 30%,#3a4250 100%);-webkit-background-clip:text;background-clip:text;color:transparent}

.nav-links{display:flex;align-items:center;gap:28px}
.nav-link{
  position:relative;
  display:inline-block;
  padding:6px 0;
  font-size:15px;
  font-weight:500;
  color:var(--text);
}
.nav-link:hover{color:var(--brand)}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;
  bottom:-6px;
  height:3px;
  width:0;
  border-radius:3px;
  background:var(--grad);
  transition:width .2s ease;
}
.nav-link:hover::after{width:60%}
.nav-link.active{color:var(--brand);font-weight:700}
.nav-link.active::after{width:100%}

.btn-brand{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 22px;
  border:0;
  border-radius:var(--r-sm);
  background:var(--grad);
  color:#fff;
  font-size:15px;
  font-weight:700;
  box-shadow:0 8px 24px rgba(255,106,0,.26);
  transition:transform .18s ease,box-shadow .18s ease;
}
.btn-brand:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 34px rgba(255,106,0,.34)}
.btn-brand:active{transform:translateY(0)}
.nav-cta{margin-left:4px}

.nav-toggle{
  display:none;
  width:44px;height:44px;
  padding:11px 10px;
  flex-direction:column;
  justify-content:space-between;
  border:1px solid var(--line);
  border-radius:var(--r-xs);
  background:#fff;
  cursor:pointer;
  transition:border-color .18s ease;
}
.nav-toggle:hover{border-color:rgba(255,106,0,.5)}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--text);transition:transform .2s ease,opacity .2s ease}
.nav-toggle.active span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.nav-toggle.active span:nth-child(2){opacity:0}
.nav-toggle.active span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}

/* ============ 通用按钮 ============ */
.btn-text{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-weight:700;
  color:var(--brand);
}
.btn-text .arrow{transition:transform .18s ease}
.btn-text:hover .arrow{transform:translateX(3px)}

.btn-light{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:13px 28px;
  border-radius:var(--r-sm);
  background:#fff;
  color:var(--brand);
  font-size:15px;
  font-weight:700;
  transition:transform .18s ease,box-shadow .18s ease,color .18s ease;
}
.btn-light:hover{color:var(--brand-deep);transform:translateY(-2px);box-shadow:0 16px 32px rgba(0,0,0,.28)}

.btn-line{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:13px 28px;
  border-radius:var(--r-sm);
  border:1px solid rgba(255,255,255,.28);
  color:#fff;
  font-size:15px;
  font-weight:600;
  transition:background .18s ease,transform .18s ease,color .18s ease;
}
.btn-line:hover{color:#fff;background:rgba(255,255,255,.1);transform:translateY(-2px)}

/* ============ 板块 ============ */
.section{padding:var(--sec-gap) 0}
.band-white{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{margin-bottom:36px}
.sec-title{
  position:relative;
  padding-left:20px;
  font-size:32px;
  font-weight:800;
  color:var(--text);
}
.sec-title::before{
  content:"";
  position:absolute;
  left:0;top:9px;bottom:9px;
  width:6px;
  border-radius:6px;
  background:var(--grad);
}
.sec-sub{margin-top:14px;font-size:15px;color:var(--muted);max-width:760px}
.sec-kicker{
  display:inline-block;
  margin-bottom:14px;
  padding:4px 13px;
  border-radius:999px;
  background:rgba(255,106,0,.08);
  color:var(--brand);
  font-size:13px;
  font-weight:700;
  letter-spacing:.8px;
}

/* ============ 页头 ============ */
.page-hero{
  position:relative;
  padding:56px 0 68px;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:repeating-linear-gradient(115deg,rgba(255,106,0,.055) 0 2px,transparent 2px 16px);
  pointer-events:none;
}
.page-hero::after{
  content:"";
  position:absolute;
  right:-120px;top:-140px;
  width:420px;height:420px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(0,194,178,.14),transparent 68%);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:1}

.breadcrumb-bar{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:14px;color:var(--muted)}
.breadcrumb-bar a{color:var(--muted)}
.breadcrumb-bar a:hover{color:var(--brand)}
.breadcrumb-bar .sep{width:1px;height:12px;background:var(--line);display:inline-block}
.breadcrumb-bar .current{color:var(--brand);font-weight:700}

.page-hero h1{
  margin:22px 0 18px;
  font-size:clamp(28px,4vw,46px);
  font-weight:800;
  line-height:1.32;
  letter-spacing:-.5px;
}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{max-width:780px;font-size:17px;color:var(--body);line-height:1.9}

.badge-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.stat-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 17px;
  border-radius:999px;
  border:1px solid rgba(0,194,178,.45);
  background:rgba(0,194,178,.08);
  color:#0d6f66;
  font-size:14px;
  font-weight:500;
}
.stat-badge b{font-size:16px;color:#0a5c55;font-variant-numeric:tabular-nums;font-weight:800}

/* ============ 图文交错 ============ */
.zigzag{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center}
.zigzag.reverse .zz-media{order:2}
.zz-media{
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--shadow);
  aspect-ratio:3/2;
  background:#ece8e2;
}
.zz-media img{width:100%;height:100%;object-fit:cover;transition:transform .22s ease}
.zz-media:hover img{transform:scale(1.04)}
.zz-body h2{font-size:clamp(22px,2.4vw,28px);margin-bottom:16px}
.zz-body p{color:var(--body)}
.point-list{display:grid;gap:12px;margin:22px 0 26px;list-style:none}
.point-list li{position:relative;padding-left:22px;font-size:15px;color:var(--body);line-height:1.8}
.point-list li::before{
  content:"";
  position:absolute;
  left:0;top:11px;
  width:8px;height:8px;
  border-radius:50%;
  background:var(--brand);
}

/* ============ 要点横条 ============ */
.key-strip{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:28px;
  padding:38px 36px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow);
}
.key-item{display:flex;gap:14px}
.key-icon{
  width:46px;height:46px;flex:0 0 46px;
  display:grid;
  place-items:center;
  border-radius:var(--r-xs);
  background:rgba(255,106,0,.09);
  color:var(--brand);
}
.key-item h3{font-size:17px;margin-bottom:5px}
.key-item p{font-size:14px;color:var(--muted);line-height:1.75}

/* ============ 分类切换 ============ */
.seg-tabs{
  display:inline-flex;
  flex-wrap:wrap;
  gap:8px;
  padding:6px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:999px;
  box-shadow:var(--shadow);
}
.seg-btn{
  border:0;
  background:transparent;
  color:var(--body);
  font-size:15px;
  font-weight:600;
  padding:10px 24px;
  border-radius:999px;
  cursor:pointer;
  transition:color .18s ease,background .18s ease,box-shadow .18s ease;
}
.seg-btn:hover{color:var(--brand)}
.seg-btn.active{background:var(--grad);color:#fff;box-shadow:0 8px 20px rgba(255,106,0,.28)}
.seg-panels{margin-top:30px}
.seg-panel{display:none}
.seg-panel.active{display:block;animation:fadeUp .22s ease}
@keyframes fadeUp{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

.match-list{display:grid;gap:12px}
.match-row{
  display:grid;
  grid-template-columns:88px 1fr auto;
  gap:20px;
  align-items:center;
  padding:18px 26px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.match-row:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(255,106,0,.35)}
.match-time{font-size:17px;font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums}
.match-main h3{font-size:16px;margin-bottom:3px}
.match-main p{font-size:14px;color:var(--muted);line-height:1.72}
.match-tag{
  padding:5px 13px;
  border-radius:999px;
  background:rgba(0,194,178,.1);
  border:1px solid rgba(0,194,178,.4);
  color:#0a6a62;
  font-size:13px;
  white-space:nowrap;
}

/* ============ 结尾 CTA ============ */
.cta-band{
  position:relative;
  padding:58px 48px;
  text-align:center;
  background:var(--dark);
  border:1px solid rgba(255,255,255,.08);
  border-radius:var(--r-xl);
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:0;
  background:radial-gradient(circle at 18% 0%,rgba(255,106,0,.24),transparent 56%),
             radial-gradient(circle at 86% 100%,rgba(0,194,178,.18),transparent 56%);
  pointer-events:none;
}
.cta-band > *{position:relative;z-index:1}
.cta-band h2{color:var(--dark-text);font-size:clamp(24px,3vw,32px)}
.cta-band p{margin:16px auto 0;max-width:640px;color:var(--dark-sub);font-size:15px}
.cta-actions{display:flex;justify-content:center;flex-wrap:wrap;gap:14px;margin-top:30px}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:var(--dark-sub);padding:72px 0 0}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.1fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:800}
.footer-brand:hover{color:#fff}
.footer-desc{margin:18px 0 12px;max-width:320px;font-size:14px;line-height:1.8;color:var(--dark-sub)}
.f-title{margin-bottom:16px;font-size:14px;font-weight:700;letter-spacing:.5px;color:var(--brand)}
.f-links{display:grid;gap:10px}
.f-links a{font-size:14px;color:var(--dark-sub)}
.f-links a:hover{color:#fff}
.f-note{font-size:13px;line-height:1.8;color:#7d8794}
.f-links + .f-note{margin-top:8px}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:12px;
  padding:20px 0;
  border-top:1px solid rgba(255,255,255,.1);
  font-size:13px;
  color:#7d8794;
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .sec-title{font-size:28px}
  .zigzag{gap:40px}
}

@media (max-width:991.98px){
  .container{padding-left:24px;padding-right:24px}
  .section{padding:56px 0}
  .nav-toggle{display:flex}
  .nav-links{
    position:absolute;
    top:calc(100% + 10px);
    left:20px;
    right:20px;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:14px;
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--r-md);
    box-shadow:0 18px 40px rgba(16,19,24,.14);
  }
  .nav-links.open{display:flex}
  .nav-link{padding:13px 15px;border-radius:var(--r-xs);font-size:16px}
  .nav-link::after{display:none}
  .nav-link:hover{background:rgba(255,106,0,.06)}
  .nav-link.active{background:rgba(255,106,0,.08);box-shadow:inset 4px 0 0 var(--brand)}
  .nav-cta{width:100%;margin:8px 0 0;padding:14px 20px}
  .zigzag{grid-template-columns:1fr;gap:28px}
  .zigzag.reverse .zz-media{order:0}
  .zz-media{aspect-ratio:16/10}
  .key-strip{grid-template-columns:1fr 1fr;padding:28px 26px;gap:24px}
  .page-hero{padding:36px 0 48px}
  .cta-band{padding:42px 26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .match-row{grid-template-columns:66px 1fr;gap:14px}
  .match-tag{grid-column:2}
}

@media (max-width:575.98px){
  .container{padding-left:20px;padding-right:20px}
  .section{padding:48px 0}
  .section{--sec-gap:48px}
  .brand{font-size:16px}
  .brand-mark{width:32px;height:32px;flex:0 0 32px;padding:5px}
  .sec-title{font-size:22px;padding-left:16px}
  .sec-title::before{width:5px;top:6px;bottom:6px}
  .hero-lead{font-size:16px}
  .badge-row{gap:10px;margin-top:24px}
  .stat-badge{padding:7px 13px;font-size:13px}
  .stat-badge b{font-size:14px}
  .key-strip{grid-template-columns:1fr;padding:24px 20px;gap:20px}
  .seg-tabs{width:100%;justify-content:center;border-radius:var(--r-md)}
  .seg-btn{flex:1 1 auto;padding:10px 14px;font-size:14px}
  .match-row{padding:16px 18px}
  .cta-actions{flex-direction:column}
  .cta-actions .btn-light,.cta-actions .btn-line{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column}
}

/* roulang page: category2 */
:root{
  --brand:#FF6A00;
  --brand-deep:#E05500;
  --brand-2:#FF3D6E;
  --brand-grad:linear-gradient(135deg,#FF6A00 0%,#FF3D6E 100%);
  --teal:#00C2B2;
  --teal-soft:rgba(0,194,178,.10);
  --ink:#101318;
  --ink-2:#14181F;
  --ink-3:#1A1F28;
  --text:#4A5261;
  --muted:#8A919E;
  --bg:#F7F5F2;
  --card:#FFFFFF;
  --line:#E8E4DE;
  --r-lg:24px;
  --r-md:18px;
  --r-sm:14px;
  --r-xs:12px;
  --sh-1:0 8px 24px rgba(16,19,24,.06);
  --sh-2:0 18px 40px rgba(16,19,24,.12);
  --sec-y:88px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
h1,h2,h3,h4{margin:0;color:var(--ink-2);font-weight:800;line-height:1.3;letter-spacing:-.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-deep);}
button{font:inherit;color:inherit;}
input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

.container{
  width:100%;
  max-width:1200px;
  margin-inline:auto;
  padding-inline:32px;
}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:border-color .2s ease, box-shadow .2s ease;
}
.site-header.is-scrolled{
  border-bottom-color:var(--line);
  box-shadow:0 6px 22px rgba(16,19,24,.07);
}
.nav-wrap{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:76px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--ink-2);
  font-weight:800;
  flex:none;
}
.brand:hover{color:var(--ink-2);}
.brand-mark{
  width:34px;
  height:34px;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:3px;
  padding:5px;
  border-radius:11px;
  background:var(--brand-grad);
  box-shadow:0 6px 14px rgba(255,106,0,.28);
}
.brand-mark i{display:block;background:rgba(255,255,255,.92);border-radius:2px;}
.brand-text{font-size:18px;letter-spacing:.01em;white-space:nowrap;}

.nav-toggle{
  display:none;
  width:44px;height:44px;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  border:1px solid var(--line);
  border-radius:var(--r-xs);
  background:#fff;
  cursor:pointer;
  transition:border-color .18s ease, box-shadow .18s ease;
}
.nav-toggle:hover{border-color:rgba(255,106,0,.4);}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink-2);transition:transform .2s ease,opacity .2s ease;}
.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);}

.nav-links{
  display:flex;
  align-items:center;
  gap:28px;
}
.nav-link{
  position:relative;
  display:inline-block;
  padding:6px 0;
  font-size:15px;
  font-weight:600;
  color:var(--ink-2);
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-2px;
  height:3px;
  border-radius:3px;
  background:var(--brand-grad);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .2s ease;
}
.nav-link:hover{color:var(--brand);}
.nav-link:hover::after{transform:scaleX(.6);}
.nav-link.active{color:var(--brand);}
.nav-link.active::after{transform:scaleX(1);}

/* ============ 按钮 ============ */
.btn-brand{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 22px;
  border:0;
  border-radius:var(--r-sm);
  background:var(--brand-grad);
  color:#fff;
  font-size:15px;
  font-weight:700;
  line-height:1.4;
  cursor:pointer;
  box-shadow:0 8px 20px rgba(255,106,0,.26);
  transition:transform .18s ease, box-shadow .18s ease, color .18s ease;
}
.btn-brand:hover{color:#fff;transform:translateY(-2px);box-shadow:0 14px 28px rgba(255,106,0,.34);}
.btn-brand:active{transform:translateY(0);box-shadow:0 6px 14px rgba(255,106,0,.24);}

.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 21px;
  border:1px solid var(--brand);
  border-radius:var(--r-sm);
  background:#fff;
  color:var(--brand);
  font-size:15px;
  font-weight:700;
  cursor:pointer;
  transition:background-color .18s ease, transform .18s ease, box-shadow .18s ease;
}
.btn-ghost:hover{background:rgba(255,106,0,.08);color:var(--brand-deep);transform:translateY(-2px);}

.btn-on-dark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 26px;
  border:0;
  border-radius:var(--r-sm);
  background:#fff;
  color:var(--brand);
  font-size:15.5px;
  font-weight:800;
  cursor:pointer;
  box-shadow:0 12px 28px rgba(0,0,0,.22);
  transition:transform .18s ease, box-shadow .18s ease, color .18s ease;
}
.btn-on-dark:hover{color:var(--brand-deep);transform:translateY(-2px);box-shadow:0 18px 36px rgba(0,0,0,.28);}

.btn-text{
  display:inline-flex;
  align-items:center;
  gap:7px;
  font-size:15px;
  font-weight:700;
  color:var(--brand);
  background:none;
  border:0;
  padding:0;
  cursor:pointer;
}
.btn-text i{font-size:13px;transition:transform .18s ease;}
.btn-text:hover{color:var(--brand-deep);}
.btn-text:hover i{transform:translateX(3px);}

/* ============ 页头 ============ */
.page-hero{
  position:relative;
  background:var(--ink);
  color:#F2F4F7;
  padding:70px 0 66px;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:radial-gradient(900px 420px at 88% 12%, rgba(255,106,0,.20), transparent 62%),
             radial-gradient(700px 380px at 6% 92%, rgba(0,194,178,.14), transparent 60%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;}
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  font-size:13.5px;
  color:#A8B0BD;
  margin-bottom:24px;
}
.crumb a{color:#A8B0BD;}
.crumb a:hover{color:#fff;}
.crumb .sep{width:1px;height:12px;background:rgba(255,255,255,.22);display:inline-block;}
.crumb .now{color:var(--brand);font-weight:700;}

.hero-grid{
  display:grid;
  grid-template-columns:1.12fr .88fr;
  gap:52px;
  align-items:center;
}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:999px;
  border:1px solid rgba(255,106,0,.42);
  background:rgba(255,106,0,.12);
  color:#FFB27A;
  font-size:13px;
  font-weight:700;
  margin-bottom:20px;
}
.page-hero h1{
  color:#F5F7FA;
  font-size:46px;
  line-height:1.24;
  letter-spacing:-.02em;
  margin-bottom:20px;
}
.page-hero h1 .grad{
  background:var(--brand-grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-lead{
  color:#B7BFCC;
  font-size:16.5px;
  line-height:1.9;
  max-width:620px;
  margin-bottom:30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}

.stat-row{display:flex;flex-wrap:wrap;gap:12px;}
.stat-pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 15px;
  border-radius:999px;
  border:1px solid rgba(0,194,178,.42);
  background:var(--teal-soft);
  color:#8BEFE6;
  font-size:13.5px;
  font-weight:600;
}
.stat-pill b{
  color:#fff;
  font-weight:800;
  font-variant-numeric:tabular-nums;
}

.hero-visual{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid rgba(255,255,255,.10);
  aspect-ratio:4/3;
  box-shadow:0 24px 60px rgba(0,0,0,.42);
}
.hero-visual img{width:100%;height:100%;object-fit:cover;}
.hero-visual::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(16,19,24,.05) 0%,rgba(16,19,24,.45) 100%);
}
.hero-visual .v-note{
  position:absolute;
  left:20px;right:20px;bottom:18px;
  z-index:2;
  font-size:13.5px;
  color:#E6EAF0;
  display:flex;
  align-items:center;
  gap:8px;
}
.hero-visual .v-note i{color:var(--teal);}

/* ============ 板块通用 ============ */
.section{padding:var(--sec-y) 0;}
.section-white{background:#fff;}
.section-ink{background:var(--ink);color:#F2F4F7;}

.sec-head{display:flex;gap:14px;margin-bottom:40px;}
.sec-head::before{
  content:"";
  flex:none;
  width:6px;
  height:36px;
  margin-top:5px;
  border-radius:4px;
  background:var(--brand-grad);
}
.sec-head h2{font-size:32px;}
.sec-head .sec-sub{margin-top:10px;color:var(--muted);font-size:15px;max-width:760px;}
.section-ink .sec-head h2{color:#F5F7FA;}
.section-ink .sec-head .sec-sub{color:#A8B0BD;}

.sec-flex{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:40px;
}
.sec-flex .sec-head{margin-bottom:0;}

/* 跑道纹底纹 */
.track-bg{position:relative;overflow:hidden;}
.track-bg::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:repeating-linear-gradient(115deg,rgba(16,19,24,.055) 0 2px,transparent 2px 22px);
  pointer-events:none;
}
.track-bg > .container{position:relative;z-index:2;}

/* ============ 卡片瀑布 ============ */
.dcard-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:26px;
}
.dcard{
  display:flex;
  flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.dcard:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,106,0,.22);}
.dcard.wide{grid-column:span 2;}
.dcard-media{
  position:relative;
  aspect-ratio:16/10;
  overflow:hidden;
  background:#EFEBE5;
}
.dcard.wide .dcard-media{aspect-ratio:21/9;}
.dcard-media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .35s ease;
}
.dcard:hover .dcard-media img{transform:scale(1.04);}
.dcard-body{
  display:flex;
  flex-direction:column;
  gap:12px;
  flex:1;
  padding:24px 26px 22px;
}
.dcard-body h3{font-size:20px;line-height:1.42;}
.dcard:hover .dcard-body h3{color:var(--brand);}
.dcard-body p{
  font-size:14.5px;
  line-height:1.8;
  color:var(--text);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.dcard.wide .dcard-body p{-webkit-line-clamp:3;}
.dcard-foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--muted);
}
.dcard-foot .arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--brand);
  font-weight:700;
  font-size:13px;
}
.dcard-foot .arrow i{transition:transform .18s ease;}
.dcard:hover .dcard-foot .arrow i{transform:translateX(3px);}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  align-self:flex-start;
  padding:5px 12px;
  border-radius:999px;
  font-size:12.5px;
  font-weight:700;
  color:var(--brand);
  background:rgba(255,106,0,.09);
  border:1px solid rgba(255,106,0,.18);
}

/* ============ 数据网格 ============ */
.stat-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.stat-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:26px 26px 24px;
  box-shadow:var(--sh-1);
  transition:transform .2s ease, box-shadow .2s ease;
}
.stat-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.stat-top{display:flex;align-items:baseline;gap:8px;flex-wrap:wrap;}
.stat-num{
  font-size:42px;
  font-weight:800;
  color:var(--ink-2);
  font-variant-numeric:tabular-nums;
  line-height:1.1;
}
.stat-unit{font-size:14px;color:var(--muted);font-weight:600;}
.stat-desc{margin-top:8px;font-size:14.5px;color:var(--text);}
.stat-bar{
  height:6px;
  border-radius:6px;
  background:#F1EEE9;
  margin-top:18px;
  overflow:hidden;
}
.stat-bar i{
  display:block;
  height:100%;
  border-radius:6px;
  background:linear-gradient(90deg,var(--teal) 0%,#4BE3D6 100%);
}

/* ============ 要点横条 ============ */
.key-bar{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  padding:32px 28px;
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
}
.key-item{display:flex;flex-direction:column;gap:8px;}
.key-icon{
  width:42px;height:42px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:12px;
  background:rgba(255,106,0,.10);
  color:var(--brand);
  font-size:17px;
}
.key-item h3{font-size:16.5px;}
.key-item p{font-size:14px;color:var(--muted);line-height:1.75;}

/* ============ FAQ ============ */
.faq-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-1);
}
.faq-item + .faq-item{border-top:1px solid var(--line);}
.faq-q{
  position:relative;
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 26px;
  border:0;
  background:none;
  text-align:left;
  font-size:16px;
  font-weight:700;
  color:var(--ink-2);
  cursor:pointer;
  transition:color .18s ease;
}
.faq-q::before{
  content:"";
  position:absolute;
  left:0;
  top:15px;
  bottom:15px;
  width:3px;
  border-radius:3px;
  background:var(--brand-grad);
  opacity:0;
  transition:opacity .18s ease;
}
.faq-q i{color:var(--muted);font-size:14px;transition:transform .22s ease,color .18s ease;flex:none;}
.faq-item.open .faq-q{color:var(--brand);}
.faq-item.open .faq-q::before{opacity:1;}
.faq-item.open .faq-q i{transform:rotate(180deg);color:var(--brand);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s ease;
}
.faq-a p{
  padding:0 30px 22px 26px;
  font-size:15px;
  line-height:1.85;
  color:var(--text);
}

/* ============ 表单 ============ */
.form-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  padding:30px 28px;
  position:sticky;
  top:100px;
}
.form-card h3{font-size:21px;margin-bottom:8px;}
.form-card .form-hint{font-size:13.5px;color:var(--muted);margin-bottom:22px;line-height:1.75;}
.form-row{margin-bottom:16px;}
.form-label{
  display:block;
  font-size:13px;
  font-weight:700;
  color:var(--ink-2);
  margin-bottom:8px;
}
.form-control-x{
  width:100%;
  padding:12px 14px;
  border:1px solid var(--line);
  border-radius:var(--r-xs);
  background:#fff;
  font-size:15px;
  color:var(--ink-2);
  transition:border-color .18s ease, box-shadow .18s ease;
}
.form-control-x::placeholder{color:#B3B9C4;}
.form-control-x:focus{
  outline:none;
  border-color:var(--brand);
  box-shadow:0 0 0 4px rgba(255,106,0,.14);
}
select.form-control-x{
  appearance:none;
  -webkit-appearance:none;
  background-image:url("data:image/svg+xml;charset=UTF-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%238A919E' d='M1.4 0 6 4.6 10.6 0 12 1.4 6 7.4 0 1.4z'/%3E%3C/svg%3E");
  background-repeat:no-repeat;
  background-position:right 14px center;
  padding-right:38px;
}
.form-note{
  margin-top:14px;
  font-size:12.5px;
  color:var(--muted);
  line-height:1.75;
}
.form-feedback{
  display:none;
  margin-top:16px;
  padding:12px 14px;
  border-radius:var(--r-xs);
  border:1px solid rgba(0,194,178,.4);
  background:rgba(0,194,178,.08);
  color:#00786D;
  font-size:13.5px;
  font-weight:600;
}
.form-feedback.show{display:block;}

/* ============ CTA ============ */
.cta-band{background:var(--ink);padding:76px 0;}
.cta-card{
  position:relative;
  border-radius:28px;
  background:linear-gradient(180deg,#161B24 0%,#101318 100%);
  padding:58px 32px;
  text-align:center;
  overflow:hidden;
}
.cta-card::before{
  content:"";
  position:absolute;
  inset:0;
  border-radius:28px;
  padding:1px;
  background:var(--brand-grad);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;
  mask-composite:exclude;
  pointer-events:none;
}
.cta-card::after{
  content:"";
  position:absolute;
  inset:0;
  background:radial-gradient(600px 260px at 50% 0%, rgba(255,106,0,.18), transparent 70%);
  pointer-events:none;
}
.cta-card > *{position:relative;z-index:2;}
.cta-card h2{color:#F6F8FB;font-size:32px;margin-bottom:14px;}
.cta-card p{color:#AFB7C4;font-size:15.5px;max-width:640px;margin:0 auto 30px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:#A8B0BD;padding-top:64px;}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-size:17px;
  font-weight:800;
}
.footer-brand:hover{color:#fff;}
.footer-desc{font-size:14px;line-height:1.85;margin:16px 0 10px;color:#A8B0BD;}
.f-note{font-size:13px;color:#8A919E;line-height:1.85;}
.f-title{font-size:14px;font-weight:700;color:var(--brand);margin-bottom:16px;}
.f-links{display:flex;flex-direction:column;gap:10px;}
.f-links a{font-size:14px;color:#A8B0BD;transition:color .18s ease;}
.f-links a:hover{color:#fff;}
.footer-bottom{
  margin-top:48px;
  border-top:1px solid rgba(255,255,255,.10);
  padding:20px 0 26px;
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:#8A919E;
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .page-hero h1{font-size:40px;}
  .sec-head h2{font-size:29px;}
  .hero-grid{gap:40px;}
}
@media (max-width:991.98px){
  :root{--sec-y:72px;}
  .nav-toggle{display:inline-flex;}
  .nav-links{
    position:absolute;
    top:calc(100% + 12px);
    left:0;right:0;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:12px;
    background:#fff;
    border:1px solid var(--line);
    border-radius:18px;
    box-shadow:var(--sh-2);
  }
  .nav-links.open{display:flex;}
  .nav-link{
    display:flex;
    align-items:center;
    min-height:48px;
    padding:0 16px;
    border-radius:var(--r-xs);
    font-size:15px;
  }
  .nav-link::after{display:none;}
  .nav-link:hover{background:rgba(255,106,0,.05);}
  .nav-link.active{
    background:rgba(255,106,0,.08);
    box-shadow:inset 4px 0 0 0 var(--brand);
  }
  .nav-cta{width:100%;margin-top:8px;}

  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .page-hero h1{font-size:34px;}
  .hero-visual{aspect-ratio:16/9;}
  .dcard-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .dcard.wide{grid-column:span 2;}
  .key-bar{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
  .form-card{position:static;}
  .sec-head h2{font-size:26px;}
}
@media (max-width:767.98px){
  :root{--sec-y:56px;}
  .container{padding-inline:20px;}
  .brand-text{font-size:16px;}
  .page-hero{padding:48px 0 50px;}
  .page-hero h1{font-size:28px;line-height:1.34;}
  .hero-lead{font-size:15.5px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn-brand,
  .hero-actions .btn-ghost{width:100%;}
  .sec-head h2{font-size:22px;}
  .sec-flex{flex-direction:column;align-items:flex-start;}
  .dcard-grid{grid-template-columns:1fr;}
  .dcard.wide{grid-column:span 1;}
  .dcard.wide .dcard-media{aspect-ratio:16/10;}
  .stat-grid{grid-template-columns:1fr;}
  .stat-num{font-size:34px;}
  .key-bar{grid-template-columns:1fr;padding:26px 22px;}
  .cta-card{padding:40px 22px;border-radius:22px;}
  .cta-card h2{font-size:23px;}
  .cta-actions{flex-direction:column;align-items:stretch;}
  .cta-actions .btn-on-dark,
  .cta-actions .btn-ghost{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .faq-q{padding:18px 20px;font-size:15px;}
  .faq-a p{padding:0 22px 20px;}
  .form-card{padding:24px 20px;}
  .stat-row{gap:10px;}
  .stat-pill{font-size:13px;padding:7px 13px;}
}