/* roulang page: index */
:root{
  --brand:#FF5A1F;
  --brand-dark:#D93F0B;
  --brand-soft:rgba(255,90,31,.08);
  --ink:#101418;
  --ink-2:#1A1F26;
  --lime:#B8FF3C;
  --bg:#F5F6F8;
  --card:#FFFFFF;
  --text:#14161A;
  --text-2:#5B6169;
  --text-3:#8A9099;
  --line:#E6E8EC;
  --invert:#F2F4F6;
  --ok:#12A150;
  --warn:#E8B10A;
  --err:#E5484D;
  --r-sm:8px;
  --r-md:10px;
  --r-lg:16px;
  --r-xl:20px;
  --sh-1:0 1px 2px rgba(16,20,24,.06);
  --sh-2:0 10px 28px rgba(16,20,24,.10);
  --sh-3:0 24px 64px rgba(16,20,24,.22);
  --sidebar-w:240px;
  --bs-body-bg:#F5F6F8;
  --bs-body-color:#14161A;
  --bs-border-color:#E6E8EC;
  --bs-border-radius:10px;
  --bs-link-color:#FF5A1F;
  --bs-link-hover-color:#D93F0B;
  --bs-primary:#FF5A1F;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:15px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-family:inherit;color:inherit;letter-spacing:-.01em;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-dark);}
img{max-width:100%;display:block;}
button{font-family:inherit;}
:focus-visible{outline:3px solid rgba(255,90,31,.35);outline-offset:2px;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ---------- App Shell ---------- */
.app-shell{min-height:100vh;}
.main{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column;}
.wrap{width:100%;max-width:1280px;margin:0 auto;padding:0 32px;}

/* ---------- Sidebar ---------- */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);
  background:var(--ink);color:var(--invert);
  display:flex;flex-direction:column;
  z-index:1045;transition:transform .28s ease,width .2s ease;
}
.sidebar-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:22px 20px 18px;border-bottom:1px solid rgba(255,255,255,.07);
}
.brand{display:flex;align-items:center;gap:10px;color:#fff;}
.brand:hover{color:#fff;}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:10px;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-dark) 100%);
  display:flex;align-items:center;justify-content:center;color:#fff;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;overflow:hidden;}
.brand-text strong{font-size:16px;font-weight:800;letter-spacing:.01em;white-space:nowrap;}
.brand-text em{font-style:normal;font-size:10px;letter-spacing:.16em;color:var(--text-3);text-transform:uppercase;white-space:nowrap;}
.drawer-close{
  background:transparent;border:1px solid rgba(255,255,255,.18);color:#fff;
  width:34px;height:34px;border-radius:10px;display:flex;align-items:center;justify-content:center;
}
.side-nav{padding:18px 14px;display:flex;flex-direction:column;gap:6px;flex:1 1 auto;overflow-y:auto;}
.side-link{
  position:relative;display:flex;align-items:center;gap:12px;
  height:44px;padding:0 14px;border-radius:10px;
  color:#C7CCD3;font-size:14.5px;font-weight:600;
  transition:background .18s ease,color .18s ease;
}
.side-link i{width:20px;text-align:center;font-size:15px;flex:0 0 20px;}
.side-link:hover{background:rgba(255,255,255,.06);color:#fff;}
.side-link.active{background:rgba(255,90,31,.12);color:#fff;}
.side-link.active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;
  border-radius:0 3px 3px 0;background:var(--brand);
}
.sidebar-foot{padding:18px 14px 22px;border-top:1px solid rgba(255,255,255,.07);}
.track-arc{width:100%;height:26px;margin-bottom:12px;opacity:.75;}
.sidebar-note{font-size:12px;line-height:1.7;color:var(--text-3);margin:12px 0 0;}
.sidebar-note a{color:var(--text-3);}
.sidebar-note a:hover{color:#fff;}

/* ---------- Topbar (mobile) ---------- */
.topbar{
  position:fixed;top:0;left:0;right:0;height:64px;z-index:1040;
  background:var(--ink);color:#fff;display:flex;align-items:center;justify-content:space-between;
  padding:0 14px;border-bottom:1px solid rgba(255,255,255,.08);
}
.topbar-btn{
  width:40px;height:40px;border-radius:10px;border:1px solid rgba(255,255,255,.16);
  background:transparent;color:#fff;display:flex;align-items:center;justify-content:center;font-size:16px;
}
.topbar-btn:hover{background:rgba(255,255,255,.08);color:#fff;}
.topbar-brand{font-size:16px;font-weight:800;color:#fff;letter-spacing:.01em;}
.topbar-brand:hover{color:#fff;}

.nav-overlay{
  position:fixed;inset:0;background:rgba(16,20,24,.55);z-index:1044;
  opacity:0;visibility:hidden;transition:opacity .24s ease,visibility .24s ease;
}
.nav-overlay.is-open{opacity:1;visibility:visible;}

/* ---------- Buttons ---------- */
.btn{font-weight:700;border-radius:var(--r-md);transition:all .2s ease;display:inline-flex;align-items:center;justify-content:center;gap:8px;}
.btn-brand{
  background:var(--brand);border:1px solid var(--brand);color:#fff;
  height:48px;padding:0 26px;font-size:15px;
}
.btn-brand:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;transform:translateY(-1px);}
.btn-brand:active{transform:translateY(0);background:var(--brand-dark);}
.btn-brand:disabled,.btn-brand.disabled{opacity:.5;transform:none;cursor:not-allowed;}
.btn-outline-ink{
  background:transparent;border:1px solid rgba(20,22,26,.4);color:var(--text);
  height:48px;padding:0 24px;font-size:15px;
}
.btn-outline-ink:hover{background:var(--ink);border-color:var(--ink);color:#fff;}
.btn-ghost{
  background:transparent;border:1px solid rgba(242,244,246,.42);color:var(--invert);
  height:48px;padding:0 24px;font-size:15px;
}
.btn-ghost:hover{background:#fff;border-color:#fff;color:var(--ink);}
.btn-lg-x{height:56px;padding:0 32px;font-size:16px;}
.btn-text{
  background:none;border:none;padding:0;color:var(--brand);font-weight:700;
  text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:2px;
}
.btn-text:hover{color:var(--brand-dark);}

/* ---------- Sections ---------- */
.section{padding:96px 0;}
.section-sm{padding:72px 0;}
.section-dark{background:var(--ink);color:var(--invert);}
.section-dark .sec-sub,.section-dark p{color:#A9B0BA;}
.section-alt{background:#fff;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:44px;flex-wrap:wrap;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;
  letter-spacing:.14em;text-transform:uppercase;color:var(--brand);margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--brand);border-radius:2px;}
.sec-title{font-size:32px;font-weight:700;line-height:1.25;margin:0 0 10px;letter-spacing:-.01em;}
.sec-sub{margin:0;color:var(--text-2);font-size:15px;max-width:64ch;}
.sec-link{font-size:14px;font-weight:700;display:inline-flex;align-items:center;gap:8px;}
.sec-link i{transition:transform .2s ease;}
.sec-link:hover i{transform:translateX(3px);}

/* ---------- Hero ---------- */
.hero{
  position:relative;color:var(--invert);
  background:#101418 url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  padding:96px 0 0;overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(16,20,24,.94) 0%,rgba(16,20,24,.80) 42%,rgba(16,20,24,.60) 100%);
}
.hero-inner{
  position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;
  gap:56px;align-items:center;padding-bottom:72px;
}
.hero h1{
  font-size:42px;font-weight:800;line-height:1.2;letter-spacing:-.02em;
  margin:0 0 18px;color:#fff;
}
.hero-lead{font-size:16px;line-height:1.8;color:#C7CCD3;margin:0 0 24px;max-width:58ch;}
.hero-questions{list-style:none;padding:0;margin:0 0 32px;display:flex;flex-wrap:wrap;gap:10px;}
.hero-questions li{
  font-size:13.5px;color:#E1E5E9;background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.12);border-radius:999px;padding:6px 14px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;}
.hero-media{position:relative;}
.hero-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-xl);
  border:1px solid rgba(255,255,255,.14);background:#EDEFF2;
  clip-path:polygon(0 0,100% 0,100% calc(100% - 22px),calc(100% - 22px) 100%,0 100%);
}
.hero-badge{
  position:absolute;left:-14px;bottom:26px;background:var(--lime);color:var(--ink);
  border-radius:12px;padding:10px 16px;font-size:13px;font-weight:800;box-shadow:var(--sh-2);
}
.hero-stats{position:relative;z-index:2;border-top:1px solid rgba(255,255,255,.12);background:rgba(16,20,24,.55);}
.hero-stats-inner{display:grid;grid-template-columns:repeat(4,1fr);gap:0;}
.stat{padding:26px 24px;border-right:1px solid rgba(255,255,255,.1);}
.stat:last-child{border-right:none;}
.stat b{display:block;font-size:40px;font-weight:800;line-height:1.05;color:var(--lime);font-variant-numeric:tabular-nums;}
.stat b small{font-size:15px;font-weight:700;margin-left:2px;}
.stat span{display:block;font-size:13px;color:#A9B0BA;margin-top:6px;}

/* ---------- Pain points ---------- */
.pain-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.pain-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px 24px;box-shadow:var(--sh-1);display:flex;gap:18px;
  transition:box-shadow .24s ease,transform .24s ease,border-color .24s ease;
}
.pain-item:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:rgba(255,90,31,.3);}
.pain-item.wide{grid-column:span 2;background:var(--brand-soft);border-color:rgba(255,90,31,.22);}
.pain-no{
  font-size:26px;font-weight:800;color:var(--brand);line-height:1;
  font-variant-numeric:tabular-nums;flex:0 0 auto;opacity:.9;
}
.pain-body h3{font-size:18px;font-weight:700;margin:0 0 6px;}
.pain-body p{margin:0;color:var(--text-2);font-size:14px;}

/* ---------- Solution cards ---------- */
.sol-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:24px;}
.sol-col{display:grid;gap:24px;}
.sol-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:box-shadow .24s ease,transform .24s ease,border-color .24s ease;
}
.sol-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:rgba(255,90,31,.3);}
.sol-thumb{position:relative;overflow:hidden;background:#EDEFF2;}
.sol-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .24s ease-out;}
.sol-card.big .sol-thumb img{aspect-ratio:16/10;}
.sol-card:hover .sol-thumb img{transform:scale(1.03);}
.sol-card.big{background:linear-gradient(180deg,rgba(255,90,31,.08) 0%,#fff 42%);}
.badge-cat{
  position:absolute;left:14px;top:14px;height:24px;display:inline-flex;align-items:center;
  padding:0 10px;border-radius:6px;background:rgba(255,90,31,.14);color:#C8330A;
  font-size:12px;font-weight:700;backdrop-filter:none;
  clip-path:polygon(7px 0,100% 0,100% 100%,0 100%,0 7px);
}
.sol-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.sol-body h3{font-size:20px;font-weight:700;margin:0;line-height:1.35;}
.sol-body p{margin:0;color:var(--text-2);font-size:14px;line-height:1.7;}
.sol-foot{margin-top:auto;padding-top:8px;}
.sol-foot a{font-size:14px;font-weight:700;display:inline-flex;align-items:center;gap:8px;}
.sol-foot a i{transition:transform .2s ease;}
.sol-card:hover .sol-foot a i{transform:translateX(3px);}

/* ---------- Data strip ---------- */
.data-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.data-cell{padding:8px 26px;border-right:1px solid rgba(255,255,255,.12);}
.data-cell:last-child{border-right:none;}
.data-cell b{display:block;font-size:48px;font-weight:800;line-height:1.05;color:var(--lime);font-variant-numeric:tabular-nums;}
.data-cell b small{font-size:16px;margin-left:2px;}
.data-cell span{display:block;margin-top:8px;font-size:13.5px;color:#A9B0BA;}

/* ---------- Timeline ---------- */
.tl{position:relative;margin-top:8px;}
.tl::before{content:"";position:absolute;left:13px;top:8px;bottom:8px;width:1px;background:var(--line);}
.tl-item{position:relative;padding:0 0 30px 48px;}
.tl-item:last-child{padding-bottom:0;}
.tl-dot{
  position:absolute;left:0;top:2px;width:27px;height:27px;border-radius:50%;
  background:var(--brand);color:#fff;font-size:12px;font-weight:800;
  display:flex;align-items:center;justify-content:center;
}
.tl-item h3{font-size:17px;font-weight:700;margin:0 0 6px;}
.tl-item p{margin:0;color:var(--text-2);font-size:14px;}
.tl-wrap{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;}

/* ---------- News (CMS) ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  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);color:inherit;
  transition:box-shadow .24s ease,transform .24s ease,border-color .24s ease;
}
.news-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:rgba(255,90,31,.3);color:inherit;}
.news-thumb{background:#EDEFF2;overflow:hidden;}
.news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .24s ease-out;}
.news-card:hover .news-thumb img{transform:scale(1.03);}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.news-body .badge-cat{position:static;align-self:flex-start;clip-path:none;border-radius:6px;}
.news-title{
  font-size:16.5px;font-weight:700;line-height:1.5;margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .18s ease;
}
.news-card:hover .news-title{color:var(--brand);}
.news-desc{
  margin:0;color:var(--text-2);font-size:13.5px;line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-time{margin-top:auto;font-size:12.5px;color:var(--text-3);font-variant-numeric:tabular-nums;}
.news-empty{
  grid-column:1/-1;background:#fff;border:1px dashed var(--line);border-radius:var(--r-lg);
  padding:56px 24px;text-align:center;color:var(--text-2);
}
.news-empty i{display:block;font-size:30px;color:var(--text-3);margin-bottom:14px;}
.news-empty p{margin:0 0 18px;font-size:14px;}

/* ---------- Form ---------- */
.form-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);
  padding:36px;box-shadow:var(--sh-1);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field.full{grid-column:span 2;}
.field label{font-size:13.5px;font-weight:700;color:var(--text);}
.field .req{color:var(--brand);margin-left:2px;}
.form-control-cx,.form-select-cx{
  height:48px;width:100%;border:1px solid var(--line);border-radius:var(--r-md);
  padding:0 14px;font-size:14.5px;color:var(--text);background:#fff;
  transition:border-color .18s ease,box-shadow .18s ease;appearance:none;
}
textarea.form-control-cx{height:auto;min-height:110px;padding:12px 14px;resize:vertical;line-height:1.7;}
.form-control-cx::placeholder,textarea.form-control-cx::placeholder{color:var(--text-3);}
.form-control-cx:focus,.form-select-cx:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(255,90,31,.3);
}
.form-control-cx.is-invalid,.form-select-cx.is-invalid{border-color:var(--err);}
.form-select-cx{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 16 16' fill='none' stroke='%23FF5A1F' stroke-width='2'%3E%3Cpath d='M4 6l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;padding-right:38px;
}
.err-msg{display:none;font-size:13px;color:var(--err);line-height:1.6;}
.err-msg.show{display:block;}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--text-2);}
.check-row input{width:18px;height:18px;margin-top:2px;accent-color:var(--brand);flex:0 0 18px;}
.privacy-note{font-size:13px;color:var(--text-3);line-height:1.7;margin:6px 0 0;}
.form-side{background:var(--ink);color:var(--invert);border-radius:var(--r-xl);padding:36px;}
.form-side h3{font-size:22px;font-weight:700;color:#fff;margin:0 0 14px;}
.form-side ul{list-style:none;padding:0;margin:0 0 24px;display:grid;gap:14px;}
.form-side li{display:flex;gap:10px;font-size:14px;color:#C7CCD3;}
.form-side li i{color:var(--lime);margin-top:5px;font-size:13px;}
.form-side .mini{font-size:13px;color:var(--text-3);border-top:1px solid rgba(255,255,255,.12);padding-top:18px;}

/* ---------- FAQ ---------- */
.faq-item{border:1px solid var(--line);border-radius:12px;background:#fff;margin-bottom:14px;overflow:hidden;transition:border-color .2s ease;}
.faq-item.open{border-color:rgba(255,90,31,.35);}
.faq-q{
  width:100%;text-align:left;background:none;border:none;padding:20px 54px 20px 22px;
  font-size:16px;font-weight:700;color:var(--text);position:relative;line-height:1.5;
}
.faq-q::after{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:400;color:var(--brand);transition:transform .22s ease;line-height:1;
}
.faq-item.open .faq-q::after{content:"−";transform:translateY(-50%) rotate(180deg);}
.faq-q:hover{color:var(--brand);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a-inner{padding:0 22px 22px 22px;border-left:3px solid var(--brand);margin-left:22px;padding-left:16px;color:var(--text-2);font-size:14.5px;}

/* ---------- CTA band ---------- */
.cta-band{background:var(--ink);color:#fff;border-radius:var(--r-xl);padding:44px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-band h2{font-size:26px;font-weight:700;margin:0 0 8px;color:#fff;}
.cta-band p{margin:0;color:#A9B0BA;font-size:14.5px;}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:#A9B0BA;padding:64px 0 0;margin-top:auto;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:13.5px;line-height:1.8;margin:0;max-width:34ch;}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin:0 0 16px;}
.footer-col ul{list-style:none;padding:0;margin:0;display:grid;gap:10px;}
.footer-col a{color:#A9B0BA;font-size:13.5px;}
.footer-col a:hover{color:var(--brand);}
.footer-contact li{display:flex;gap:10px;font-size:13.5px;color:#A9B0BA;}
.footer-contact i{color:var(--brand);margin-top:5px;font-size:13px;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12.5px;color:var(--text-3);}
.footer-bottom a{color:var(--text-3);}
.footer-bottom a:hover{color:#fff;}

/* ---------- Modal ---------- */
.modal-content{border:none;border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--sh-3);}
.modal-header{background:var(--ink);color:#fff;border:none;padding:22px 26px;}
.modal-header h5{font-size:18px;font-weight:700;margin:0;color:#fff;}
.modal-header p{margin:4px 0 0;font-size:12.5px;color:#A9B0BA;}
.modal-header .btn-close{filter:invert(1) grayscale(1) brightness(2);opacity:.8;}
.modal-body{padding:26px;background:#fff;}
.modal-backdrop.show{opacity:.55;}

/* ---------- Mobile dock ---------- */
.mobile-dock{
  position:fixed;left:0;right:0;bottom:0;height:56px;background:#fff;
  border-top:1px solid var(--line);z-index:1035;display:flex;align-items:center;
  box-shadow:0 -4px 16px rgba(16,20,24,.06);
}
.dock-item{
  flex:1 1 0;height:56px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:2px;font-size:11.5px;color:var(--text-3);background:none;border:none;font-weight:600;
}
.dock-item i{font-size:15px;}
.dock-item.active{color:var(--brand);}
.dock-item:hover{color:var(--brand);}

/* ---------- Responsive ---------- */
@media (min-width:1400px){
  .wrap{max-width:1360px;padding:0 44px;}
}
@media (min-width:992px) and (max-width:1199.98px){
  :root{--sidebar-w:72px;}
  .brand-text,.side-link span.label,.sidebar-foot .sidebar-note,.sidebar-foot .track-arc{display:none;}
  .sidebar-head{padding:20px 14px;justify-content:center;}
  .side-link{justify-content:center;padding:0;}
  .side-link.active::before{top:0;bottom:0;border-radius:0 3px 3px 0;}
  .sidebar-foot{padding:16px 10px 20px;}
  .sidebar-foot .btn-brand{padding:0;font-size:0;width:44px;height:44px;margin:0 auto;}
  .sidebar-foot .btn-brand::after{content:"\f095";font-family:"Font Awesome 6 Free";font-weight:900;font-size:15px;}
}
@media (max-width:991.98px){
  .sidebar{width:280px;transform:translateX(-100%);box-shadow:var(--sh-3);}
  .sidebar.is-open{transform:translateX(0);}
  .main{margin-left:0;padding-top:64px;padding-bottom:56px;}
  .section{padding:64px 0;}
  .section-sm{padding:48px 0;}
  .hero{padding-top:56px;}
  .hero-inner{grid-template-columns:1fr;gap:36px;padding-bottom:52px;}
  .hero h1{font-size:32px;}
  .hero-stats-inner{grid-template-columns:repeat(2,1fr);}
  .stat{border-bottom:1px solid rgba(255,255,255,.1);}
  .stat:nth-child(2){border-right:none;}
  .sec-title{font-size:26px;}
  .pain-grid{grid-template-columns:1fr;}
  .pain-item.wide{grid-column:span 1;}
  .sol-grid{grid-template-columns:1fr;}
  .tl-wrap{grid-template-columns:1fr;gap:32px;}
  .data-grid{grid-template-columns:repeat(2,1fr);}
  .data-cell{padding:16px 20px;border-bottom:1px solid rgba(255,255,255,.12);}
  .data-cell:nth-child(2){border-right:none;}
  .data-cell b{font-size:34px;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .form-grid{grid-template-columns:1fr;}
  .field.full{grid-column:span 1;}
  .form-panel{padding:24px;}
  .form-side{padding:26px;}
  .cta-band{padding:32px;border-radius:var(--r-lg);}
}
@media (max-width:767.98px){
  .wrap{padding:0 18px;}
  .hero h1{font-size:27px;}
  .hero-lead{font-size:15px;}
  .hero-cta .btn{width:100%;}
  .sec-head{margin-bottom:30px;}
  .sec-title{font-size:23px;}
  .news-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .cta-band{padding:26px 22px;}
  .cta-band h2{font-size:21px;}
}
@media (max-width:575.98px){
  .hero-stats-inner{grid-template-columns:1fr 1fr;}
  .stat b{font-size:30px;}
  .data-grid{grid-template-columns:1fr 1fr;}
  .pain-item{padding:20px;flex-direction:column;gap:10px;}
  .modal-body{padding:20px;}
  .modal-header{padding:18px 20px;}
}

/* roulang page: article */
:root{
  --ink:#101418;
  --ink-2:#1A2026;
  --orange:#FF5A1F;
  --orange-dark:#D93F0B;
  --lime:#B8FF3C;
  --bg:#F5F6F8;
  --card:#FFFFFF;
  --text:#14161A;
  --muted:#5B6169;
  --weak:#8A9099;
  --line:#E6E8EC;
  --r-sm:8px;
  --r-md:10px;
  --r-lg:16px;
  --r-xl:20px;
  --sh-1:0 1px 2px rgba(16,20,24,.06);
  --sh-2:0 10px 28px rgba(16,20,24,.10);
  --sh-3:0 24px 64px rgba(16,20,24,.22);
  --bs-body-bg:#F5F6F8;
  --bs-body-color:#14161A;
  --bs-border-color:#E6E8EC;
  --bs-primary:#FF5A1F;
  --bs-link-color:#D93F0B;
  --bs-link-hover-color:#FF5A1F;
  --bs-border-radius:10px;
  --bs-font-sans-serif:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:15px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--orange-dark);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--orange)}
button{font-family:inherit}
:focus-visible{outline:3px solid rgba(255,90,31,.45);outline-offset:2px;border-radius:6px}
h1,h2,h3,h4{color:var(--text);margin:0}
p{margin:0}

/* ============ 左侧 App Shell ============ */
.side-shell{
  position:fixed;top:0;left:0;bottom:0;width:240px;
  background:var(--ink);z-index:1040;
  display:flex;flex-direction:column;
  padding:22px 16px;
}
.side-brand{display:flex;align-items:center;gap:10px;padding:4px 8px 24px;color:#fff}
.brand-mark{
  width:38px;height:38px;border-radius:10px;background:var(--orange);
  display:grid;place-items:center;flex:0 0 38px;
}
.brand-text strong{display:block;font-size:15px;font-weight:800;letter-spacing:.01em;color:#fff;line-height:1.2}
.brand-text em{font-style:normal;font-size:10px;color:#8A9099;letter-spacing:.16em;text-transform:uppercase}
.side-nav{display:flex;flex-direction:column;gap:4px}
.side-link{
  position:relative;display:flex;align-items:center;gap:10px;
  height:44px;padding:0 12px;border-radius:10px;
  color:#C6CBD1;font-size:14px;font-weight:600;
}
.side-link i{width:20px;text-align:center;font-size:14px;color:#8A9099}
.side-link:hover{background:rgba(255,255,255,.06);color:#fff}
.side-link:hover i{color:#fff}
.side-link.active{background:rgba(255,90,31,.12);color:#fff}
.side-link.active i{color:var(--orange)}
.side-link.active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  border-radius:0 3px 3px 0;background:var(--orange);
}
.side-foot{margin-top:auto;border-top:1px solid rgba(255,255,255,.08);padding-top:16px}
.side-arc{margin-bottom:14px;opacity:.65}
.side-foot p{font-size:12px;color:#8A9099;line-height:1.6;margin-bottom:12px}
.side-cta{
  display:flex;align-items:center;justify-content:center;gap:8px;
  height:42px;border-radius:10px;background:var(--orange);color:#fff;
  font-weight:700;font-size:13px;
}
.side-cta:hover{background:var(--orange-dark);color:#fff}

/* ============ 移动端顶栏与抽屉 ============ */
.topbar{display:none}
.drawer,.drawer-mask{display:none}

/* ============ 主区域 ============ */
.app-main{margin-left:240px;min-height:100vh;display:flex;flex-direction:column}
.app-main > main{flex:1 0 auto}
.wrap{width:100%;max-width:1180px;margin:0 auto;padding:0 32px}

/* ============ 面包屑 ============ */
.crumb-bar{background:#fff;border-bottom:1px solid var(--line)}
.crumb-inner{
  display:flex;align-items:center;gap:10px;height:64px;
  overflow-x:auto;white-space:nowrap;font-size:13px;color:var(--muted);
  scrollbar-width:none;
}
.crumb-inner::-webkit-scrollbar{display:none}
.crumb-inner a{color:var(--muted)}
.crumb-inner a:hover{color:var(--orange)}
.crumb-inner .sep{color:#C3C8CE}
.crumb-inner .current{color:var(--orange-dark);font-weight:700}

/* ============ 文章头 ============ */
.article-hero{padding:44px 0 0}
.article-head{max-width:820px;margin:0 auto}
.badge-cat{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:6px;background:rgba(255,90,31,.12);color:var(--orange-dark);
  font-size:12px;font-weight:700;letter-spacing:.02em;
}
.article-title{
  font-size:clamp(23px,3.3vw,38px);
  font-weight:800;line-height:1.25;letter-spacing:-.02em;
  margin:16px 0 18px;
}
.meta-row{
  display:flex;flex-wrap:wrap;gap:8px 18px;align-items:center;
  font-size:13px;color:var(--weak);
  padding-bottom:24px;border-bottom:1px solid var(--line);
}
.meta-row i{margin-right:6px;color:#B0B6BD}
.meta-row time{font-variant-numeric:tabular-nums}
.hero-media{
  max-width:960px;margin:30px auto 0;padding:0;
  border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;background:#EDEFF2;box-shadow:var(--sh-1);
}
.hero-media img{width:100%;aspect-ratio:16/9;object-fit:cover}

/* ============ 正文排版 ============ */
.article-wrap{padding:36px 0 8px}
.article-body{
  max-width:800px;margin:0 auto;
  font-size:16px;line-height:1.75;color:#1F2329;
  word-break:break-word;
}
.article-body p{margin:0 0 16px}
.article-body h2{
  position:relative;
  font-size:clamp(20px,2.4vw,26px);font-weight:700;line-height:1.3;
  margin:40px 0 12px;padding-left:14px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.25em;bottom:.25em;width:4px;
  border-radius:2px;background:var(--orange);
}
.article-body h3{font-size:19px;font-weight:700;margin:28px 0 10px}
.article-body h4{font-size:16px;font-weight:700;margin:22px 0 8px}
.article-body ul,.article-body ol{margin:0 0 16px;padding-left:22px}
.article-body li{margin-bottom:8px}
.article-body ul li::marker{color:var(--orange)}
.article-body ol li::marker{color:var(--orange);font-weight:700}
.article-body blockquote{
  margin:22px 0;padding:16px 20px;background:#F1F3F6;
  border-left:3px solid var(--orange);border-radius:0 12px 12px 0;color:var(--muted);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;margin:22px 0 10px}
.article-body figure{margin:22px 0}
.article-body figcaption{font-size:13px;color:var(--weak);text-align:center;margin-top:8px}
.article-body table{
  width:100%;border-collapse:collapse;font-size:14px;margin:22px 0;
  display:block;overflow-x:auto;white-space:nowrap;
}
.article-body th,.article-body td{border-bottom:1px solid var(--line);padding:12px 14px;text-align:left}
.article-body th{background:var(--ink);color:#F2F4F6;font-weight:700;white-space:nowrap}
.article-body tbody tr:nth-child(even){background:#F5F6F8}
.article-body a{color:var(--orange-dark);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--orange)}
.article-body code,.article-body kbd{
  font-family:"SFMono-Regular",Menlo,Consolas,monospace;font-size:13px;
  background:#F1F3F6;border-radius:6px;padding:2px 6px;color:#2B3138;
}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}
.article-empty{text-align:left;padding:34px 0}
.article-empty h2{font-size:26px;font-weight:800;padding-left:0}
.article-empty h2::before{display:none}
.article-empty p{color:var(--muted);margin:10px 0 22px}

/* ============ 文章尾部动作 ============ */
.article-foot{max-width:800px;margin:0 auto;padding:26px 0 0}
.tag-list{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;
  border-radius:8px;background:#EEF0F3;color:var(--muted);
  font-size:13px;font-weight:600;transition:.2s;
}
.tag:hover{background:rgba(255,90,31,.12);color:var(--orange-dark)}
.action-row{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;
  padding:20px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 18px;
  border-radius:10px;border:1px solid var(--ink);background:transparent;
  color:var(--ink);font-weight:700;font-size:14px;cursor:pointer;transition:.2s;
}
.btn-ghost:hover{background:var(--ink);color:#fff}
.btn-ghost i{font-size:13px}

/* ============ 通用按钮 ============ */
.btn-eb{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:10px;border:0;
  background:var(--orange);color:#fff;font-weight:700;font-size:15px;
  cursor:pointer;transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-eb:hover{background:var(--orange-dark);color:#fff;transform:translateY(-1px);box-shadow:0 8px 20px rgba(217,63,11,.22)}
.btn-eb:active{transform:translateY(1px)}
.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:10px;
  border:1px solid rgba(242,244,246,.35);background:transparent;
  color:#F2F4F6;font-weight:700;font-size:15px;transition:.2s;
}
.btn-line:hover{background:#F2F4F6;color:var(--ink);border-color:#F2F4F6}
.link-more{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--orange-dark);font-weight:700;font-size:14px;
  text-decoration:underline;text-underline-offset:3px;
}
.link-more:hover{color:var(--orange)}

/* ============ 板块 ============ */
.section{padding:64px 0}
.section-tight{padding:48px 0}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:20px;margin-bottom:28px;flex-wrap:wrap;
}
.section-head h2{font-size:clamp(20px,2.3vw,26px);font-weight:700;letter-spacing:-.01em}
.section-head p{margin-top:8px;color:var(--muted);font-size:14px;max-width:640px}

/* ============ 相关阅读卡 ============ */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card-x{
  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 .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.card-x:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(255,90,31,.3)}
.card-media{position:relative;background:#EDEFF2;overflow:hidden}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .24s ease-out}
.card-x:hover .card-media img{transform:scale(1.03)}
.card-badge{
  position:absolute;top:12px;left:12px;
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:6px;background:rgba(255,90,31,.92);color:#fff;
  font-size:12px;font-weight:700;
}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-title{
  font-size:16px;font-weight:700;line-height:1.45;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-x:hover .card-title{color:var(--orange-dark)}
.card-time{font-size:13px;color:var(--weak);margin-top:auto}

/* ============ CTA 横条 ============ */
.cta-strip{
  position:relative;overflow:hidden;
  background:var(--ink);border-radius:var(--r-xl);
  padding:40px;display:flex;align-items:center;justify-content:space-between;
  gap:24px;flex-wrap:wrap;
}
.cta-strip::after{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;
  border-radius:50%;border:1px solid rgba(255,90,31,.35);pointer-events:none;
}
.cta-strip h2{color:#F2F4F6;font-size:clamp(20px,2.3vw,26px);font-weight:800;letter-spacing:-.01em}
.cta-strip p{color:#AEB5BC;font-size:14px;margin-top:10px;max-width:560px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:1}

/* ============ 返回入口 ============ */
.back-row{padding:8px 0 64px}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:#B7BDC4;padding:56px 0 24px;margin-top:auto}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand .brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{width:38px;height:38px;border-radius:10px;background:var(--orange);display:grid;place-items:center;flex:0 0 38px}
.footer-brand .brand-text strong{display:block;color:#fff;font-size:15px;font-weight:800;line-height:1.2}
.footer-brand .brand-text em{font-style:normal;font-size:10px;color:#8A9099;letter-spacing:.16em;text-transform:uppercase}
.footer-brand p{font-size:13px;color:#8A9099;line-height:1.7;max-width:320px}
.footer-col h4{color:#F2F4F6;font-size:14px;font-weight:700;margin-bottom:14px}
.footer-col ul{list-style:none;margin:0;padding:0}
.footer-col li{margin-bottom:10px;font-size:13px}
.footer-col a{color:#B7BDC4}
.footer-col a:hover{color:var(--orange)}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;line-height:1.6}
.footer-contact i{color:var(--orange);margin-top:3px;width:14px;text-align:center}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.08);
  font-size:13px;color:#8A9099;
}
.footer-bottom a{color:#B7BDC4}
.footer-bottom a:hover{color:var(--orange)}

/* ============ 断点 ============ */
@media (min-width:992px) and (max-width:1199px){
  .side-shell{width:72px;padding:22px 12px}
  .side-link{justify-content:center;padding:0;gap:0}
  .side-link .label{display:none}
  .side-brand{justify-content:center;padding:4px 0 22px}
  .brand-text{display:none}
  .side-foot p{display:none}
  .side-arc{display:none}
  .side-cta{padding:0;width:100%}
  .side-cta span{display:none}
  .app-main{margin-left:72px}
}
@media (max-width:991px){
  .side-shell{display:none}
  .topbar{
    display:flex;position:fixed;top:0;left:0;right:0;height:64px;
    background:var(--ink);align-items:center;justify-content:space-between;
    padding:0 14px;z-index:1050;
  }
  .topbar-brand{display:flex;align-items:center;gap:8px;color:#fff;font-weight:800;font-size:15px}
  .topbar-brand .brand-mark{width:30px;height:30px;border-radius:9px;flex:0 0 30px}
  .icon-btn{
    width:40px;height:40px;border-radius:10px;border:0;background:rgba(255,255,255,.08);
    color:#fff;display:grid;place-items:center;font-size:15px;cursor:pointer;
  }
  .icon-btn:hover{background:rgba(255,255,255,.16)}
  .drawer{
    display:block;position:fixed;top:0;right:0;bottom:0;width:290px;max-width:84vw;
    background:var(--ink);z-index:1060;padding:20px 16px;overflow-y:auto;
    transform:translateX(100%);transition:transform .28s ease;
  }
  .drawer.open{transform:translateX(0)}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
  .drawer-head span{color:#F2F4F6;font-weight:800;font-size:15px}
  .drawer .side-nav{gap:4px}
  .drawer-foot{margin-top:24px;border-top:1px solid rgba(255,255,255,.08);padding-top:16px}
  .drawer-foot p{display:block;font-size:12px;color:#8A9099;margin-bottom:12px}
  .drawer-mask{
    display:block;position:fixed;inset:0;background:rgba(16,20,24,.55);
    opacity:0;pointer-events:none;transition:opacity .28s ease;z-index:1055;
  }
  .drawer-mask.open{opacity:1;pointer-events:auto}
  .app-main{margin-left:0;padding-top:64px}
  .wrap{padding:0 18px}
  .article-hero{padding:30px 0 0}
  .section{padding:48px 0}
  .rel-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-strip{padding:30px}
}
@media (max-width:575px){
  body{font-size:14.5px}
  .wrap{padding:0 16px}
  .crumb-inner{height:56px}
  .article-title{font-size:22px}
  .meta-row{font-size:12px;gap:6px 12px}
  .article-body{font-size:15.5px}
  .rel-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .btn-eb,.btn-line{width:100%}
  .cta-actions{width:100%}
  .action-row .btn-ghost{flex:1 1 auto;justify-content:center}
  .cta-strip{padding:24px 20px}
}

/* roulang page: category1 */
:root{
  --brand:#FF5A1F;
  --brand-dark:#D93F0B;
  --brand-soft:rgba(255,90,31,.10);
  --ink:#101418;
  --paper:#F5F6F8;
  --white:#FFFFFF;
  --lime:#B8FF3C;
  --text:#14161A;
  --text-2:#5B6169;
  --text-3:#8A9099;
  --line:#E6E8EC;
  --inv:#F2F4F6;
  --ok:#12A150;
  --warn:#E8B10A;
  --err:#E5484D;
  --r-sm:8px;
  --r-md:10px;
  --r-lg:16px;
  --r-xl:20px;
  --sh-1:0 1px 2px rgba(16,20,24,.06);
  --sh-2:0 10px 28px rgba(16,20,24,.10);
  --sh-3:0 24px 64px rgba(16,20,24,.22);
  --sidebar:240px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}

/* ---------- base ---------- */
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:15px;
  line-height:1.75;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;object-fit:cover}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-dark)}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;color:var(--text)}
h1{font-size:36px;font-weight:800;line-height:1.2;letter-spacing:-.02em}
h2{font-size:28px;line-height:1.25}
h3{font-size:20px;line-height:1.35}
p{margin:0 0 16px;max-width:68ch}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:3px solid rgba(255,90,31,.32);outline-offset:2px;border-radius:6px}

.wrap{max-width:1280px;margin:0 auto;padding:0 32px}
.section{padding:96px 0}
.section-tight{padding:64px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.section-head p{margin:8px 0 0;color:var(--text-2)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--brand-dark);
  background:var(--brand-soft);border-radius:6px;padding:4px 10px;margin-bottom:14px;
}
.muted{color:var(--text-2)}
.small{font-size:13px;line-height:1.6;color:var(--text-2)}

/* ---------- buttons ---------- */
.btn-main,.btn-ghost,.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-md);
  font-size:15px;font-weight:700;line-height:1;cursor:pointer;
  border:1px solid transparent;transition:all .2s ease;white-space:nowrap;
}
.btn-main{background:var(--brand);color:#fff;box-shadow:var(--sh-1)}
.btn-main:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-main:active{background:var(--brand-dark);transform:translateY(0)}
.btn-main[disabled],.btn-main.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;background:var(--brand)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.4)}
.btn-ghost:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
.btn-line{background:transparent;color:var(--text);border-color:var(--line)}
.btn-line:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
.btn-main.lg,.btn-line.lg{height:56px;padding:0 32px;font-size:16px}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-weight:700;color:var(--brand);border-bottom:2px solid rgba(255,90,31,.35);padding-bottom:2px}
.btn-text:hover{color:var(--brand-dark);border-bottom-color:var(--brand-dark)}

/* ---------- badges ---------- */
.badge-cat{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:6px;
  background:var(--brand-soft);color:var(--brand-dark);font-size:12px;font-weight:700;letter-spacing:.02em;
}
.badge-data{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:6px;
  background:var(--lime);color:var(--ink);font-size:12px;font-weight:700;
}
.badge-light{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:6px;
  background:var(--paper);color:var(--text-2);font-size:12px;font-weight:700;border:1px solid var(--line);
}

/* ---------- sidebar shell ---------- */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar);
  background:var(--ink);display:flex;flex-direction:column;
  padding:22px 16px 18px;z-index:70;transition:transform .28s ease;
}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;padding:0 6px;margin-bottom:26px;min-height:40px}
.brand-mark{
  width:36px;height:36px;border-radius:10px;background:var(--brand);
  display:grid;place-items:center;flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{color:#fff;font-size:15px;font-weight:800;letter-spacing:.01em}
.brand-text em{font-style:normal;font-size:11px;color:rgba(255,255,255,.5);letter-spacing:.12em;text-transform:uppercase}
.side-nav{display:flex;flex-direction:column;gap:6px;flex:1 1 auto}
.side-link{
  position:relative;display:flex;align-items:center;gap:12px;
  height:44px;padding:0 12px;border-radius:var(--r-md);
  color:#C7CCD3;font-size:14px;font-weight:600;text-decoration:none;transition:all .2s ease;
}
.side-link i{width:20px;text-align:center;font-size:15px;flex:0 0 auto}
.side-link:hover{background:rgba(255,255,255,.06);color:#fff}
.side-link.active{background:rgba(255,90,31,.14);color:#fff}
.side-link.active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;border-radius:3px;background:var(--brand);
}
.side-foot{margin-top:auto;padding-top:20px;border-top:1px solid rgba(255,255,255,.08)}
.side-arc{width:100%;height:26px;display:block;margin-bottom:14px;opacity:.75}
.side-cta{
  display:flex;align-items:center;justify-content:center;gap:8px;
  height:42px;border-radius:var(--r-md);background:var(--brand);color:#fff;
  font-size:14px;font-weight:700;text-decoration:none;transition:background .2s ease;
}
.side-cta:hover{background:var(--brand-dark);color:#fff}
.side-copy{font-size:11px;color:rgba(255,255,255,.42);margin:12px 0 0;line-height:1.6}

.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:64px;z-index:80;
  background:var(--ink);align-items:center;justify-content:space-between;padding:0 16px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.topbar button,.topbar a.icon-btn{
  width:40px;height:40px;border-radius:10px;border:0;background:rgba(255,255,255,.06);
  color:#fff;display:grid;place-items:center;font-size:16px;cursor:pointer;text-decoration:none;
}
.topbar .topbar-brand{color:#fff;font-size:16px;font-weight:800;text-decoration:none;letter-spacing:.02em}
.drawer-mask{
  position:fixed;inset:0;background:rgba(16,20,24,.55);z-index:65;opacity:0;visibility:hidden;transition:all .25s ease;
}
.drawer-mask.show{opacity:1;visibility:visible}

.main{margin-left:var(--sidebar);min-height:100vh;background:var(--paper)}

/* ---------- hero ---------- */
.page-hero{
  position:relative;background-color:var(--ink);
  background-image:linear-gradient(180deg,rgba(16,20,24,.70) 0%,rgba(16,20,24,.86) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  padding:88px 0 72px;color:#fff;
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:6px;
  background:repeating-linear-gradient(45deg,var(--brand) 0 10px,transparent 10px 20px);opacity:.6;
}
.page-hero h1{color:#fff;margin:16px 0 18px;max-width:22ch}
.page-hero .hero-sub{color:rgba(255,255,255,.82);font-size:16px;max-width:58ch;margin-bottom:28px}
.crumb{display:flex;align-items:center;gap:10px;font-size:13px;color:rgba(255,255,255,.6);flex-wrap:nowrap;overflow-x:auto;white-space:nowrap}
.crumb a{color:rgba(255,255,255,.75);text-decoration:none}
.crumb a:hover{color:#fff}
.crumb i{font-size:10px;opacity:.6}
.crumb span{color:#fff;font-weight:700}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:32px}
.hero-meta{display:flex;gap:28px;flex-wrap:wrap;padding-top:24px;border-top:1px solid rgba(255,255,255,.14)}
.hero-meta li{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.78)}
.hero-meta i{color:var(--lime)}

/* ---------- layout 8:4 ---------- */
.layout{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:40px;align-items:start}
.content-col{min-width:0}
.side-col{position:sticky;top:24px;display:flex;flex-direction:column;gap:20px}

/* ---------- cards ---------- */
.card{background:var(--white);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1)}
.card-pad{padding:20px 24px}
.sticky-card{padding:24px;border-radius:var(--r-lg)}
.sticky-card h3{font-size:18px;margin-bottom:8px}
.sticky-card .thumb{border-radius:12px;overflow:hidden;border:1px solid var(--line);margin-bottom:18px}
.sticky-card .thumb img{width:100%;aspect-ratio:4/3}
.sticky-list{display:flex;flex-direction:column;gap:12px;margin:18px 0 20px;padding:0}
.sticky-list li{position:relative;padding-left:22px;font-size:14px;color:var(--text-2);line-height:1.6}
.sticky-list li::before{
  content:"";position:absolute;left:0;top:8px;width:8px;height:8px;border-radius:2px;background:var(--brand);
}
.sticky-contact{border-top:1px solid var(--line);padding-top:16px;display:flex;flex-direction:column;gap:10px}
.sticky-contact span{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-2)}
.sticky-contact i{color:var(--brand);width:16px;text-align:center}

/* ---------- article prose ---------- */
.prose h2{margin:44px 0 14px;padding-top:8px}
.prose h2:first-child{margin-top:0}
.prose h3{margin:28px 0 10px;font-size:18px}
.prose p{color:#2A2E34;line-height:1.8}
.prose .lead{font-size:16px;color:var(--text-2)}

/* ---------- list rows ---------- */
.row-list{display:flex;flex-direction:column;gap:12px;margin:24px 0 8px}
.row-item{
  display:flex;align-items:center;gap:18px;min-height:72px;padding:16px 20px;
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-lg);
  text-decoration:none;transition:all .2s ease;
}
.row-item:hover{background:var(--paper);border-color:rgba(255,90,31,.32);transform:translateX(2px)}
.row-icon{
  width:44px;height:44px;flex:0 0 auto;border-radius:12px;background:var(--brand-soft);
  color:var(--brand);display:grid;place-items:center;font-size:17px;
}
.row-body{flex:1 1 auto;min-width:0}
.row-body strong{display:block;font-size:16px;font-weight:700;color:var(--text);margin-bottom:2px}
.row-body span{display:block;font-size:13px;color:var(--text-2);line-height:1.6}
.row-item > i{color:var(--text-3);font-size:13px;flex:0 0 auto}
.row-item:hover > i{color:var(--brand)}

/* ---------- banner image ---------- */
.banner-fig{margin:32px 0;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);background:#EDEFF2}
.banner-fig img{width:100%;aspect-ratio:16/9}
.banner-fig figcaption{font-size:13px;color:var(--text-3);padding:10px 16px;background:var(--white);border-top:1px solid var(--line)}

/* ---------- data strip ---------- */
.data-strip{
  display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);
  border-radius:var(--r-lg);overflow:hidden;margin:28px 0;border:1px solid var(--line);
}
.data-strip > div{background:var(--ink);padding:24px 20px;color:#fff}
.data-strip .num{
  font-size:40px;font-weight:800;line-height:1.1;color:var(--lime);
  font-variant-numeric:tabular-nums;display:flex;align-items:baseline;gap:4px;
}
.data-strip .num em{font-style:normal;font-size:15px;font-weight:700;color:rgba(255,255,255,.72)}
.data-strip .cap{font-size:13px;color:rgba(255,255,255,.66);margin-top:6px}

/* ---------- spec table ---------- */
.table-wrap{border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;background:var(--white);margin:24px 0}
table.spec{width:100%;border-collapse:collapse;font-size:14px}
table.spec thead th{
  background:var(--ink);color:var(--inv);text-align:left;font-weight:700;
  padding:14px 18px;font-size:13px;letter-spacing:.02em;white-space:nowrap;
}
table.spec tbody td{padding:16px 18px;border-top:1px solid var(--line);color:var(--text-2);vertical-align:top}
table.spec tbody tr:nth-child(odd){background:var(--paper)}
table.spec tbody td:first-child{color:var(--text);font-weight:700}
.table-scroll{overflow-x:auto}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:32px;position:relative}
.step{position:relative;padding-top:36px}
.step::before{
  content:"";position:absolute;top:15px;left:0;right:0;height:1px;background:var(--line);
}
.step:first-child::before{left:15px}
.step:last-child::before{right:calc(100% - 15px)}
.step-dot{
  position:absolute;top:0;left:0;width:32px;height:32px;border-radius:50%;
  background:var(--brand);color:#fff;display:grid;place-items:center;
  font-size:13px;font-weight:800;font-variant-numeric:tabular-nums;z-index:2;
}
.step h3{font-size:17px;margin-bottom:8px}
.step p{font-size:13px;color:var(--text-2);margin:0;line-height:1.65}

/* ---------- faq two column ---------- */
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.faq-item{
  background:var(--white);border:1px solid var(--line);border-left:3px solid var(--brand);
  border-radius:12px;padding:20px 22px;box-shadow:var(--sh-1);transition:box-shadow .2s ease;
}
.faq-item:hover{box-shadow:var(--sh-2)}
.faq-item h3{font-size:16px;margin-bottom:8px;display:flex;gap:10px;align-items:flex-start}
.faq-item h3 i{color:var(--brand);font-size:14px;margin-top:5px}
.faq-item p{font-size:14px;color:var(--text-2);margin:0;line-height:1.7}

/* ---------- cta bar ---------- */
.cta-bar{background:var(--ink);border-radius:var(--r-xl);padding:40px 44px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;position:relative;overflow:hidden}
.cta-bar::after{
  content:"";position:absolute;right:-40px;top:-40px;width:200px;height:200px;border-radius:50%;
  border:1px solid rgba(255,90,31,.35);
}
.cta-bar h2{color:#fff;font-size:24px;margin-bottom:6px}
.cta-bar p{color:rgba(255,255,255,.7);font-size:14px;margin:0}
.cta-bar .btn-main{position:relative;z-index:2}

/* ---------- forms ---------- */
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;font-weight:700;color:var(--text);margin-bottom:8px}
.field .req{color:var(--err);margin-left:2px}
.field input[type=text],.field input[type=tel],.field select,.field textarea{
  width:100%;height:48px;padding:0 14px;font-size:14px;font-family:inherit;color:var(--text);
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-md);
  transition:border-color .2s ease,box-shadow .2s ease;appearance:none;
}
.field textarea{height:auto;padding:12px 14px;resize:vertical;line-height:1.7}
.field select{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%235B6169' stroke-width='1.6' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;padding-right:38px;
}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(255,90,31,.28);
}
.field.invalid input,.field.invalid select,.field.invalid textarea{border-color:var(--err)}
.field .err-msg{display:none;font-size:13px;color:var(--err);margin-top:6px}
.field.invalid .err-msg{display:block}
.radio-row{display:flex;gap:10px;flex-wrap:wrap}
.radio-row label{
  display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 14px;margin:0;
  border:1px solid var(--line);border-radius:var(--r-md);font-size:13px;font-weight:600;
  color:var(--text-2);cursor:pointer;transition:all .2s ease;background:var(--white);
}
.radio-row input{accent-color:var(--brand)}
.radio-row label:hover{border-color:rgba(255,90,31,.4)}
.radio-row label.checked{border-color:var(--brand);background:var(--brand-soft);color:var(--brand-dark)}
.privacy-row{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--text-2);line-height:1.6}
.privacy-row input{margin-top:4px;accent-color:var(--brand);width:16px;height:16px;flex:0 0 auto}
.privacy-note{font-size:13px;color:var(--text-3);margin-top:12px;line-height:1.6}
.form-ok{display:none;background:#EAF8F0;border:1px solid rgba(18,161,80,.3);color:#0E7A3C;border-radius:var(--r-md);padding:12px 16px;font-size:14px;margin-bottom:18px}

/* ---------- modal ---------- */
.modal-backdrop.show{opacity:1;background:rgba(16,20,24,.55)}
.modal-content{border:0;border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--sh-3)}
.modal-head{
  background:var(--ink);color:#fff;padding:22px 26px;position:relative;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.modal-head::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:3px;
  background:repeating-linear-gradient(45deg,var(--brand) 0 8px,transparent 8px 16px);
}
.modal-head h2{color:#fff;font-size:19px}
.modal-head p{color:rgba(255,255,255,.7);font-size:13px;margin:4px 0 0}
.modal-x{
  width:36px;height:36px;border-radius:10px;border:1px solid rgba(255,255,255,.25);
  background:transparent;color:#fff;display:grid;place-items:center;cursor:pointer;flex:0 0 auto;
  transition:background .2s ease;
}
.modal-x:hover{background:rgba(255,255,255,.12)}
.modal-body-pad{padding:26px}
.modal-dialog{max-width:560px}

/* ---------- mobile quick bar ---------- */
.quickbar{
  display:none;position:fixed;left:0;right:0;bottom:0;height:56px;background:var(--ink);
  z-index:75;border-top:1px solid rgba(255,255,255,.1);
}
.quickbar a{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  color:rgba(255,255,255,.62);font-size:11px;text-decoration:none;
}
.quickbar a i{font-size:16px}
.quickbar a.active{color:var(--brand)}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.66);padding:64px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .brand{margin-bottom:16px;padding:0}
.footer-brand p{font-size:13px;line-height:1.75;color:rgba(255,255,255,.6);max-width:38ch}
.footer-col h4{color:#fff;font-size:14px;font-weight:700;margin-bottom:16px;letter-spacing:.02em}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{color:rgba(255,255,255,.64);font-size:13px;text-decoration:none}
.footer-col a:hover{color:var(--brand)}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:rgba(255,255,255,.64);line-height:1.6}
.footer-contact i{color:var(--brand);width:16px;text-align:center;margin-top:3px}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.7)}
.footer-bottom a:hover{color:var(--brand)}

/* ---------- responsive ---------- */
@media (max-width:1399px){
  .wrap{padding:0 28px}
}
@media (max-width:1199px) and (min-width:992px){
  :root{--sidebar:72px}
  .sidebar{padding:22px 12px 18px;align-items:center}
  .brand{padding:0;justify-content:center}
  .brand-text{display:none}
  .side-link{justify-content:center;padding:0;width:44px}
  .side-link .label{display:none}
  .side-cta{width:44px;padding:0}
  .side-cta span{display:none}
  .side-copy{display:none}
  .side-arc{display:none}
  .layout{grid-template-columns:1fr;gap:36px}
  .side-col{position:static}
}
@media (max-width:991px){
  .topbar{display:flex}
  .sidebar{width:280px;transform:translateX(-100%);padding:22px 18px 18px}
  .sidebar.open{transform:translateX(0);box-shadow:var(--sh-3)}
  .main{margin-left:0;padding-top:64px;padding-bottom:56px}
  .quickbar{display:flex}
  .page-hero{padding:56px 0 48px}
  h1{font-size:30px}
  h2{font-size:24px}
  .section{padding:72px 0}
  .layout{grid-template-columns:1fr;gap:32px}
  .side-col{position:static}
  .steps{grid-template-columns:repeat(2,1fr);gap:28px}
  .step:nth-child(3)::before{left:15px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .wrap{padding:0 20px}
  h1{font-size:26px}
  h2{font-size:21px}
  .section{padding:56px 0}
  .data-strip{grid-template-columns:1fr}
  .data-strip .num{font-size:32px}
  .faq-grid{grid-template-columns:1fr}
  .cta-bar{padding:28px 24px}
  .cta-bar h2{font-size:20px}
  .table-wrap{border:0;background:transparent}
  table.spec,table.spec tbody,table.spec tr,table.spec td{display:block;width:100%}
  table.spec thead{display:none}
  table.spec tbody tr{
    background:var(--white);border:1px solid var(--line);border-radius:var(--r-lg);
    padding:6px 4px;margin-bottom:14px;
  }
  table.spec tbody td{border-top:0;padding:8px 16px;display:flex;gap:12px;font-size:13px}
  table.spec tbody td::before{
    content:attr(data-label);flex:0 0 82px;color:var(--text-3);font-weight:700;font-size:12px;
  }
  table.spec tbody td:first-child{padding-top:14px}
  table.spec tbody tr:nth-child(odd){background:var(--white)}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .hero-meta{gap:16px}
}
@media (max-width:575px){
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%}
  .steps{grid-template-columns:1fr}
  .step::before{display:none}
  .row-item{padding:14px 16px;gap:14px}
  .row-body strong{font-size:15px}
  .modal-body-pad{padding:20px}
}

/* roulang page: category2 */
:root{
  --energy:#FF5A1F;
  --energy-dark:#D93F0B;
  --energy-soft:rgba(255,90,31,.08);
  --energy-line:rgba(255,90,31,.30);
  --ink:#101418;
  --bg:#F5F6F8;
  --card:#FFFFFF;
  --lime:#B8FF3C;
  --t1:#14161A;
  --t2:#5B6169;
  --t3:#8A9099;
  --line:#E6E8EC;
  --onDark:#F2F4F6;
  --ok:#12A150;
  --warn:#E8B10A;
  --err:#E5484D;
  --r-sm:8px;
  --r-md:10px;
  --r-lg:16px;
  --r-xl:20px;
  --sh-1:0 1px 2px rgba(16,20,24,.06);
  --sh-2:0 10px 28px rgba(16,20,24,.10);
  --sh-3:0 24px 64px rgba(16,20,24,.22);
  --nav-w:240px;
  --nav-w-sm:72px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:88px;overflow-x:hidden}
body{
  margin:0;
  font-family:var(--font);
  font-size:15px;
  line-height:1.75;
  color:var(--t1);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--energy);text-decoration:none;transition:color .16s ease}
a:hover{color:var(--energy-dark)}
h1,h2,h3,h4{margin:0;color:var(--t1);font-weight:700;letter-spacing:-.01em}
h1{font-size:clamp(30px,3.4vw,42px);font-weight:800;line-height:1.2;letter-spacing:-.02em}
h2{font-size:clamp(23px,2.3vw,32px);line-height:1.25}
h3{font-size:20px;line-height:1.35}
p{margin:0 0 16px;max-width:68ch}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:3px solid rgba(255,90,31,.35);outline-offset:2px;border-radius:6px}
.skip-link{position:absolute;left:-9999px;top:0;background:#fff;color:var(--t1);padding:10px 16px;border-radius:0 0 10px 0;z-index:200}
.skip-link:focus{left:0}

/* ===== 布局骨架 ===== */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--nav-w);
  background:var(--ink);color:var(--onDark);
  display:flex;flex-direction:column;
  padding:22px 16px 18px;z-index:70;
  transition:transform .28s ease;
}
.sidebar-head{padding:0 6px 20px;border-bottom:1px solid rgba(255,255,255,.08)}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;
  background:linear-gradient(140deg,var(--energy),var(--energy-dark));
  display:flex;align-items:center;justify-content:center;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:16px;font-weight:800;color:#fff;letter-spacing:.01em}
.brand-text em{font-style:normal;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:rgba(242,244,246,.55);margin-top:3px}
.side-nav{display:flex;flex-direction:column;gap:6px;padding:22px 0;flex:1 1 auto}
.side-link{
  position:relative;display:flex;align-items:center;gap:12px;
  height:44px;padding:0 14px;border-radius:var(--r-md);
  color:rgba(242,244,246,.72);font-size:15px;font-weight:500;
  transition:background .16s ease,color .16s ease;
}
.side-link i{width:20px;text-align:center;font-size:15px;flex:0 0 20px}
.side-link:hover{background:rgba(255,255,255,.06);color:#fff}
.side-link.active{background:rgba(255,90,31,.12);color:#fff;font-weight:700}
.side-link.active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  border-radius:2px;background:var(--energy);
}
.sidebar-foot{border-top:1px solid rgba(255,255,255,.08);padding-top:16px}
.arc{display:block;width:100%;height:34px;margin-bottom:12px;opacity:.75}
.side-cta{
  display:flex;align-items:center;justify-content:center;gap:8px;
  width:100%;height:44px;border-radius:var(--r-md);
  background:var(--energy);color:#fff;font-weight:700;font-size:14px;
  border:0;cursor:pointer;transition:background .16s ease,transform .16s ease;
}
.side-cta:hover{background:var(--energy-dark);transform:translateY(-1px)}
.side-cta:active{transform:translateY(1px)}
.record{margin:14px 0 0;font-size:12px;color:rgba(242,244,246,.45);line-height:1.6;max-width:none}
.scrim{
  position:fixed;inset:0;background:rgba(16,20,24,.55);z-index:65;
  opacity:0;visibility:hidden;transition:opacity .24s ease,visibility .24s ease;
}
.scrim.show{opacity:1;visibility:visible}
.shell{margin-left:var(--nav-w);min-height:100vh;display:flex;flex-direction:column}
.topbar{display:none}
.wrap{width:100%;max-width:1280px;margin:0 auto;padding:0 40px}

/* ===== 通用组件 ===== */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--energy);margin-bottom:16px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--energy);border-radius:2px}
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section--dark{background:var(--ink);color:var(--onDark)}
.section--dark h2,.section--dark h3{color:#fff}
.section--dark p{color:rgba(242,244,246,.74)}
.section--white{background:#fff}
.section-head{margin-bottom:44px;max-width:760px}
.section-head p{color:var(--t2);font-size:16px}
.badge-soft{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:6px;background:var(--energy-soft);color:var(--energy-dark);
  font-size:12px;font-weight:700;letter-spacing:.02em;
}
.badge-lime{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:6px;background:var(--lime);color:var(--ink);
  font-size:12px;font-weight:700;font-variant-numeric:tabular-nums;
}
.btn-energy,.btn-line,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:48px;padding:0 26px;border-radius:var(--r-md);
  font-size:15px;font-weight:700;cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
.btn-energy{background:var(--energy);color:#fff;border:1px solid var(--energy)}
.btn-energy:hover{background:var(--energy-dark);border-color:var(--energy-dark);color:#fff;transform:translateY(-1px)}
.btn-energy:active{transform:translateY(1px)}
.btn-energy[disabled],.btn-energy[aria-disabled="true"]{opacity:.5;cursor:not-allowed;transform:none}
.btn-line{background:transparent;color:var(--t1);border:1px solid var(--t1)}
.btn-line:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.28)}
.btn-ghost:hover{background:#fff;color:var(--ink);border-color:#fff}
.btn-lg{height:56px;padding:0 32px;font-size:16px}
.text-link{display:inline-flex;align-items:center;gap:7px;font-weight:700;color:var(--energy);border-bottom:2px solid transparent;padding-bottom:2px}
.text-link:hover{border-bottom-color:var(--energy);color:var(--energy-dark)}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ===== Hero 分屏 ===== */
.hero{background:var(--ink);color:var(--onDark);position:relative;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;min-height:560px}
.hero-copy{padding:84px 56px 64px 40px;display:flex;flex-direction:column;justify-content:center}
.hero-copy h1{color:#fff}
.hero-sub{margin-top:20px;font-size:16px;line-height:1.8;color:rgba(242,244,246,.76);max-width:52ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-visual{position:relative;min-height:320px}
.hero-visual img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;background:#EDEFF2}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,var(--ink) 0%,rgba(16,20,24,.42) 46%,rgba(16,20,24,.12) 100%);
}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,1fr);
  border-top:1px solid rgba(255,255,255,.14);
}
.hero-stat{padding:24px 40px;border-right:1px solid rgba(255,255,255,.14)}
.hero-stat:last-child{border-right:0}
.hero-stat b{display:block;font-size:26px;font-weight:800;color:var(--lime);line-height:1.2}
.hero-stat span{display:block;font-size:13px;color:rgba(242,244,246,.62);margin-top:4px}

/* ===== 交替三段 ===== */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:44px 0}
.split + .split{border-top:1px solid var(--line)}
.split-media{position:relative;border-radius:var(--r-lg);overflow:hidden;background:#EDEFF2;box-shadow:var(--sh-1)}
.split-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.split-media.is-cut{clip-path:polygon(0 0,100% 0,100% calc(100% - 28px),calc(100% - 28px) 100%,0 100%)}
.split.is-reverse .split-media{order:2}
.split-body h3{margin-bottom:14px}
.split-body p{color:var(--t2)}
.point-list{margin-top:20px;display:flex;flex-direction:column;gap:10px}
.point-list li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--t2)}
.point-list i{color:var(--energy);font-size:13px;margin-top:5px}

/* ===== 数据卡 ===== */
.metric-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:8px}
.metric-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:32px 28px;box-shadow:var(--sh-1);transition:box-shadow .24s ease,transform .24s ease,border-color .24s ease;
}
.metric-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--energy-line)}
.metric-card b{display:block;font-size:clamp(34px,4vw,48px);font-weight:800;color:var(--energy);line-height:1.05;font-variant-numeric:tabular-nums}
.metric-card b small{font-size:16px;font-weight:700;margin-left:4px;color:var(--t2)}
.metric-card h3{font-size:16px;margin:14px 0 8px}
.metric-card p{font-size:13px;color:var(--t2);line-height:1.7}

/* ===== 流程 ===== */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:12px}
.step{position:relative;padding:0 26px 0 0}
.step::after{
  content:"";position:absolute;top:17px;left:38px;right:0;height:1px;background:var(--line);
}
.step:last-child::after{display:none}
.step-num{
  position:relative;z-index:1;width:36px;height:36px;border-radius:50%;
  background:var(--energy);color:#fff;font-weight:800;font-size:14px;
  display:flex;align-items:center;justify-content:center;font-variant-numeric:tabular-nums;
}
.step h3{font-size:17px;margin:20px 0 10px}
.step p{font-size:13px;color:var(--t2);line-height:1.7}

/* ===== 标签墙 ===== */
.tag-wall{display:flex;flex-wrap:wrap;gap:12px;margin-top:8px}
.tag{
  display:inline-flex;align-items:center;height:42px;padding:0 18px;
  border-radius:12px;background:#fff;border:1px solid var(--line);
  font-size:14px;color:var(--t2);font-weight:500;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
.tag:hover{background:var(--energy-soft);border-color:var(--energy-line);color:var(--energy-dark);transform:translateY(-1px)}

/* ===== 表单 ===== */
.form-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);
  padding:40px;box-shadow:var(--sh-1);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px 24px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1 / -1}
.field label{font-size:13px;font-weight:700;color:var(--t1)}
.field label span{color:var(--err);margin-left:2px}
.field input,.field select,.field textarea{
  width:100%;height:48px;padding:0 14px;font-size:15px;font-family:inherit;color:var(--t1);
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  transition:border-color .16s ease,box-shadow .16s ease;appearance:none;
}
.field textarea{height:112px;padding:12px 14px;resize:vertical;line-height:1.7}
.field select{
  background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%235B6169' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;padding-right:40px;
}
.field input::placeholder,.field textarea::placeholder{color:var(--t3)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--energy);box-shadow:0 0 0 3px rgba(255,90,31,.18);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--err)}
.field .err-msg{font-size:13px;color:var(--err);display:none}
.field.has-error .err-msg{display:block}
.agree{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--t2);line-height:1.7}
.agree input{width:18px;height:18px;flex:0 0 18px;margin-top:3px;accent-color:var(--energy)}
.form-foot{display:flex;flex-wrap:wrap;align-items:center;gap:18px;margin-top:26px}
.form-note{font-size:13px;color:var(--t3);line-height:1.7;max-width:60ch}
.form-note a{color:var(--energy);text-decoration:underline;text-underline-offset:3px}
.form-done{
  margin-top:18px;display:none;align-items:center;gap:10px;
  padding:14px 18px;border-radius:var(--r-md);
  background:rgba(18,161,80,.10);color:#0E7C3E;font-size:14px;font-weight:700;
}
.form-done.show{display:flex}

/* ===== FAQ ===== */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.qa{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px 28px;position:relative;transition:border-color .2s ease,box-shadow .2s ease;
}
.qa::before{content:"";position:absolute;left:0;top:22px;bottom:22px;width:3px;border-radius:2px;background:var(--energy);opacity:.85}
.qa:hover{border-color:var(--energy-line);box-shadow:var(--sh-1)}
.qa h3{font-size:17px;margin-bottom:10px}
.qa p{font-size:14px;color:var(--t2)}

/* ===== CTA 横条 ===== */
.cta-bar{background:var(--ink);color:#fff}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  padding:48px 0;flex-wrap:wrap;
}
.cta-inner strong{display:block;font-size:clamp(20px,2.1vw,26px);font-weight:800;color:#fff;letter-spacing:-.01em}
.cta-inner span{display:block;font-size:14px;color:rgba(242,244,246,.66);margin-top:8px}

/* ===== 页脚 ===== */
.site-footer{background:var(--ink);color:rgba(242,244,246,.72);padding:64px 0 28px;margin-top:auto}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.10)}
.footer-brand .brand{margin-bottom:18px}
.footer-brand p{font-size:13px;line-height:1.8;color:rgba(242,244,246,.60);max-width:34ch}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:13px;color:rgba(242,244,246,.68)}
.footer-col a:hover{color:#fff}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:13px;line-height:1.65}
.footer-contact i{color:var(--energy);margin-top:4px;font-size:12px}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding-top:22px;font-size:12px;color:rgba(242,244,246,.48);
}
.footer-bottom a{color:rgba(242,244,246,.72)}
.footer-bottom a:hover{color:#fff}

/* ===== 弹层 ===== */
.modal-backdrop.show{opacity:.55}
.modal-content{border:0;border-radius:var(--r-xl);box-shadow:var(--sh-3);overflow:hidden}
.modal-header{background:var(--ink);border-bottom:0;padding:22px 26px;align-items:flex-start}
.modal-header .modal-title{font-size:19px;font-weight:700;color:#fff}
.modal-header .modal-sub{display:block;font-size:13px;color:rgba(242,244,246,.62);margin-top:6px;font-weight:400}
.modal-header .btn-close{filter:invert(1) grayscale(1) brightness(1.9);opacity:.75;margin:0;padding:6px}
.modal-header .btn-close:hover{opacity:1}
.modal-body{padding:28px 26px 30px}
.modal-dialog{max-width:560px}

/* ===== 响应式 ===== */
@media (max-width:1399.98px){
  .wrap{padding:0 32px}
  .hero-copy{padding:72px 40px 56px 32px}
  .hero-stat{padding:22px 32px}
}
@media (max-width:1199.98px){
  .sidebar{width:var(--nav-w-sm);padding:20px 12px 16px}
  .sidebar-head{padding:0 0 18px;display:flex;justify-content:center}
  .brand-text{display:none}
  .side-link{justify-content:center;padding:0}
  .side-link .label{display:none}
  .side-cta{padding:0;font-size:0;height:44px}
  .side-cta i{font-size:16px}
  .record{display:none}
  .arc{display:none}
  .shell{margin-left:var(--nav-w-sm)}
  .hero-grid{min-height:500px}
  .split{gap:40px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:991.98px){
  html{scroll-padding-top:78px}
  .sidebar{
    width:280px;left:auto;right:0;transform:translateX(100%);
    padding:22px 18px 20px;box-shadow:var(--sh-3);
  }
  .sidebar.open{transform:translateX(0)}
  .sidebar-head{padding:0 0 18px;display:block}
  .brand-text{display:flex}
  .side-link{justify-content:flex-start;padding:0 14px}
  .side-link .label{display:inline}
  .side-cta{padding:0 18px;font-size:14px}
  .record{display:block}
  .arc{display:block}
  .shell{margin-left:0}
  .topbar{
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    position:fixed;top:0;left:0;right:0;height:64px;padding:0 16px;
    background:var(--ink);color:#fff;z-index:60;box-shadow:0 1px 0 rgba(255,255,255,.08);
  }
  .topbar .brand-text strong{font-size:15px}
  .topbar .brand-mark{width:34px;height:34px;flex:0 0 34px;border-radius:10px}
  .icon-btn{
    width:42px;height:42px;border-radius:12px;border:0;background:rgba(255,255,255,.08);
    color:#fff;font-size:16px;display:flex;align-items:center;justify-content:center;cursor:pointer;
    transition:background .16s ease;
  }
  .icon-btn:hover{background:rgba(255,255,255,.16)}
  .main{padding-top:64px}
  .section{padding:72px 0}
  .section--tight{padding:56px 0}
  .hero-grid{grid-template-columns:1fr}
  .hero-copy{padding:52px 24px 40px}
  .hero-visual{min-height:280px;order:-1}
  .hero-visual::after{background:linear-gradient(180deg,rgba(16,20,24,.25) 0%,rgba(16,20,24,.85) 100%)}
  .hero-stats{grid-template-columns:1fr}
  .hero-stat{border-right:0;border-bottom:1px solid rgba(255,255,255,.14);padding:18px 24px}
  .hero-stat:last-child{border-bottom:0}
  .split{grid-template-columns:1fr;gap:26px;padding:36px 0}
  .split.is-reverse .split-media{order:0}
  .metric-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr 1fr;gap:28px 20px}
  .step{padding:0}
  .step::after{display:none}
  .faq-grid{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .form-panel{padding:28px 22px}
  .cta-inner{padding:40px 0;flex-direction:column;align-items:flex-start}
}
@media (max-width:575.98px){
  body{font-size:14px}
  .wrap{padding:0 18px}
  .section{padding:48px 0}
  .section--tight{padding:40px 0}
  .section-head{margin-bottom:28px}
  .hero-copy{padding:40px 18px 32px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn-energy,.hero-actions .btn-ghost{width:100%}
  .steps{grid-template-columns:1fr}
  .form-foot{flex-direction:column;align-items:stretch}
  .form-foot .btn-energy{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .cta-inner .btn-energy{width:100%}
  .footer-bottom{flex-direction:column;gap:8px}
}