/* roulang page: index */
:root{
  --brand-1:#F2542D;
  --brand-2:#FF8A3D;
  --brand-3:#FFB03A;
  --brand-grad:linear-gradient(120deg,var(--brand-1) 0%,var(--brand-2) 55%,var(--brand-3) 100%);
  --deep:#08312C;
  --deep-2:#0E5C55;
  --mint:#EFF3F0;
  --bg:#F7F5F2;
  --surface:#FFFFFF;
  --line:#E3E8E5;
  --ink:#14201D;
  --ink-2:#5B6B66;
  --ink-3:#8A9995;
  --ok:#12A87A;
  --warn:#E8A400;
  --info:#2F7F8F;
  --r-card:24px;
  --r-md:16px;
  --r-sm:12px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(20,32,29,.06);
  --sh-2:0 10px 30px rgba(20,32,29,.08);
  --sh-3:0 24px 60px rgba(242,84,45,.18);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif !important;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg) !important;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
button{font-family:inherit}
input,textarea,select{font-family:inherit}
::selection{background:rgba(242,84,45,.18)}
:focus-visible{outline:2px solid var(--brand-1);outline-offset:2px}

.t-ink{color:var(--ink)}
.t-ink2{color:var(--ink-2)}
.t-ink3{color:var(--ink-3)}
.t-brand{color:var(--brand-1)}
.t-deep{color:var(--deep)}
.num{font-variant-numeric:tabular-nums}

.container-x{width:100%;max-width:1200px;margin:0 auto;padding-left:16px;padding-right:16px}
@media(min-width:640px){.container-x{padding-left:24px;padding-right:24px}}
@media(min-width:1024px){.container-x{padding-left:32px;padding-right:32px}}
@media(min-width:1280px){.container-x{max-width:1280px}}

.section{padding-top:56px;padding-bottom:56px}
@media(min-width:1024px){.section{padding-top:96px;padding-bottom:96px}}

.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--brand-1);text-transform:uppercase}
.eyebrow::before{content:"";width:26px;height:3px;border-radius:var(--r-pill);background:var(--brand-grad)}

.h1{font-size:30px;line-height:1.28;font-weight:800;letter-spacing:-.01em;color:var(--ink)}
@media(min-width:1024px){.h1{font-size:48px;line-height:1.2}}
.h2{font-size:24px;line-height:1.35;font-weight:700;color:var(--ink);letter-spacing:-.005em}
@media(min-width:1024px){.h2{font-size:32px}}
.h3{font-size:19px;line-height:1.45;font-weight:600;color:var(--ink)}
@media(min-width:1024px){.h3{font-size:22px}}
.lead{font-size:16px;line-height:1.85;color:var(--ink-2)}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:52px;padding:12px 28px;border-radius:var(--r-pill);font-size:15px;font-weight:700;border:0;cursor:pointer;transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s,filter .2s,background .2s,color .2s}
.btn-primary{background:var(--brand-grad);color:#fff;box-shadow:0 8px 20px rgba(242,84,45,.26)}
.btn-primary:hover{filter:brightness(1.08);box-shadow:0 16px 32px rgba(242,84,45,.32);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px);filter:brightness(.95)}
.btn-outline{background:#fff;color:var(--brand-1);border:1.5px solid var(--brand-1)}
.btn-outline:hover{background:rgba(242,84,45,.08);transform:translateY(-1px)}
.btn-dark{background:rgba(255,255,255,.06);color:#fff;border:1.5px solid rgba(255,255,255,.22)}
.btn-dark:hover{background:rgba(255,255,255,.14);transform:translateY(-1px)}
.btn-sm{min-height:44px;padding:10px 20px;font-size:14px}

.chip{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:var(--r-pill);font-size:13px;font-weight:600;line-height:1.6}
.chip-mint{background:var(--mint);color:var(--deep)}
.chip-grad{background:var(--brand-grad);color:#fff}
.chip-line{background:#fff;border:1px solid var(--line);color:var(--ink-2)}
.chip-ok{background:rgba(18,168,122,.12);color:var(--ok)}

.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s,border-color .2s}
.card-hover:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#D6DEDA}

.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.clamp-3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}

.media{position:relative;overflow:hidden;border-radius:inherit;background:var(--mint)}
.media img{width:100%;height:100%;object-fit:cover}
.media::after{content:"";position:absolute;inset:0;box-shadow:inset 0 0 0 1px rgba(20,32,29,.06);border-radius:inherit;pointer-events:none}

/* ===== Header / Nav ===== */
.site-header{position:sticky;top:0;z-index:80;background:rgba(247,245,242,.86);backdrop-filter:blur(10px);border-bottom:1px solid transparent;transition:background .2s,box-shadow .2s,border-color .2s}
.site-header.is-scrolled{background:#fff;box-shadow:var(--sh-2);border-bottom-color:var(--line)}
.nav-row{display:flex;align-items:center;justify-content:space-between;height:72px}
@media(min-width:1024px){.nav-row{height:78px}}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;letter-spacing:-.01em;color:var(--ink)}
.logo-mark{width:34px;height:34px;border-radius:11px;background:var(--brand-grad);display:flex;align-items:center;justify-content:center;color:#fff;font-size:15px;font-weight:800;box-shadow:0 6px 14px rgba(242,84,45,.28)}
.nav-list{display:none;align-items:center;gap:4px}
@media(min-width:1024px){.nav-list{display:flex}}
.nav-item{position:relative}
.nav-link{display:inline-flex;align-items:center;gap:6px;padding:9px 16px;border-radius:var(--r-pill);font-size:15px;font-weight:600;color:var(--ink-2);transition:background .18s,color .18s}
.nav-link:hover{background:rgba(242,84,45,.09);color:var(--brand-1)}
.nav-link.is-active{color:var(--deep);background:var(--mint)}
.nav-link.is-active::after{content:"";position:absolute;left:16px;right:16px;bottom:2px;height:2px;border-radius:2px;background:var(--brand-grad)}
.nav-cta{display:none}
@media(min-width:1024px){.nav-cta{display:inline-flex}}
.burger{display:inline-flex;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;border-radius:var(--r-md);border:1px solid var(--line);background:#fff;align-items:center}
@media(min-width:1024px){.burger{display:none}}
.burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink)}

/* Mega */
.mega{position:absolute;top:calc(100% + 12px);left:50%;transform:translateX(-50%) translateY(8px);width:min(860px,calc(100vw - 40px));background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-2);padding:24px;opacity:0;visibility:hidden;transition:opacity .16s ease .2s,transform .16s ease .2s,visibility .16s linear .2s;z-index:60}
.nav-item:hover .mega,.nav-item:focus-within .mega{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0);transition-delay:0s}
.mega::before{content:"";position:absolute;top:-7px;left:50%;transform:translateX(-50%) rotate(45deg);width:14px;height:14px;background:#fff;border-left:1px solid var(--line);border-top:1px solid var(--line);border-radius:3px}
.mega-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media(min-width:768px){.mega-grid{grid-template-columns:1fr 1fr}}
.mega-entry{display:flex;gap:12px;padding:11px 12px;border-radius:var(--r-md);transition:background .18s}
.mega-entry:hover{background:var(--mint)}
.mega-ico{width:38px;height:38px;flex:0 0 38px;border-radius:12px;background:var(--mint);display:flex;align-items:center;justify-content:center;color:var(--brand-1);font-weight:800;font-size:14px}
.mega-entry:hover .mega-ico{background:#fff}
.mini-link{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:8px 10px;border-radius:var(--r-sm);font-size:14px;color:var(--ink-2);transition:background .18s,color .18s,padding .18s}
.mini-link:hover{background:var(--mint);color:var(--brand-1);padding-left:14px}

/* Drawer */
.drawer{position:fixed;left:0;right:0;top:72px;bottom:0;background:#fff;transform:translateX(100%);transition:transform .24s ease;z-index:75;overflow-y:auto;padding:20px 20px 32px;display:flex;flex-direction:column;gap:6px}
.drawer.is-open{transform:translateX(0)}
@media(min-width:1024px){.drawer{display:none}}
.drawer-link{display:flex;align-items:center;justify-content:space-between;padding:16px 14px;border-radius:var(--r-md);font-size:17px;font-weight:600;color:var(--ink);border:1px solid var(--line);background:#fff}
.drawer-link.is-active{border-color:var(--brand-1);color:var(--brand-1);background:rgba(242,84,45,.06)}

/* Hero */
.hero-blob{position:absolute;border-radius:999px;filter:blur(70px);opacity:.30;pointer-events:none}
.device-frame{border-radius:28px;border:1px solid var(--line);background:#fff;padding:12px;box-shadow:var(--sh-2)}
.float-badge{position:absolute;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-2);padding:10px 14px;display:flex;flex-direction:column;gap:2px}

/* Bento */
.bento-card{border-radius:var(--r-card);background:var(--surface);border:1px solid var(--line);box-shadow:var(--sh-1);overflow:hidden;transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s}
.bento-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}

/* Shots track */
.shot-track{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;padding:6px 4px 20px;scrollbar-width:none;-ms-overflow-style:none}
.shot-track::-webkit-scrollbar{display:none}
.shot-item{scroll-snap-align:start;flex:0 0 auto;width:270px;border-radius:var(--r-card);background:var(--surface);border:1px solid var(--line);box-shadow:var(--sh-1);overflow:hidden;transition:transform .2s,box-shadow .2s}
@media(min-width:768px){.shot-item{width:300px}}
.shot-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.fade-left,.fade-right{position:absolute;top:0;bottom:20px;width:56px;pointer-events:none;z-index:5;display:none}
@media(min-width:768px){.fade-left,.fade-right{display:block}}
.fade-left{left:0;background:linear-gradient(90deg,var(--bg),rgba(247,245,242,0))}
.fade-right{right:0;background:linear-gradient(270deg,var(--bg),rgba(247,245,242,0))}
.shot-dot{width:9px;height:9px;border-radius:999px;background:#D9E0DC;border:0;cursor:pointer;transition:all .2s;padding:0}
.shot-dot.is-active{width:28px;background:var(--brand-grad)}
.arrow-btn{width:46px;height:46px;border-radius:999px;background:#fff;border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;color:var(--ink);box-shadow:var(--sh-1);cursor:pointer;transition:all .2s}
.arrow-btn:hover{color:#fff;background:var(--brand-1);border-color:var(--brand-1);transform:translateY(-1px)}

/* Spec rows */
.spec-row{display:grid;grid-template-columns:1fr;gap:6px;padding:16px 18px;border-top:1px solid var(--line)}
.spec-row:nth-child(odd){background:rgba(239,243,240,.5)}
@media(min-width:768px){.spec-row{grid-template-columns:1.4fr 1fr 1fr auto;align-items:center;gap:16px}}

/* Stats */
.stat-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:var(--r-card);padding:22px 20px}

/* Reviews */
.avatar{width:46px;height:46px;border-radius:999px;background:var(--brand-grad);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:17px}
.star{color:var(--brand-1)}
.star-off{color:var(--line)}

/* FAQ */
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);margin-bottom:12px;overflow:hidden;transition:box-shadow .2s,border-color .2s}
.faq-item.open{box-shadow:var(--sh-1);border-color:#D6DEDA}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 20px;background:none;border:0;text-align:left;font-size:17px;font-weight:600;color:var(--ink);cursor:pointer}
.faq-ico{flex:0 0 28px;width:28px;height:28px;border-radius:999px;background:var(--mint);color:var(--brand-1);display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:700;transition:transform .2s,background .2s,color .2s;line-height:1}
.faq-item.open .faq-ico{transform:rotate(45deg);background:var(--brand-grad);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;padding:0 20px}
.faq-item.open .faq-a{border-top:1px dashed var(--line);padding-top:16px;padding-bottom:18px}

/* QR */
.qr-box{position:relative;width:132px;height:132px;background:#fff;border-radius:var(--r-md);box-shadow:var(--sh-2);background-image:repeating-linear-gradient(45deg,rgba(8,49,44,.07) 0 6px,rgba(8,49,44,0) 6px 12px)}
.qr-c{position:absolute;width:20px;height:20px;border:3px solid var(--deep)}
.qr-c.tl{top:10px;left:10px;border-right:0;border-bottom:0;border-top-left-radius:6px}
.qr-c.tr{top:10px;right:10px;border-left:0;border-bottom:0;border-top-right-radius:6px}
.qr-c.bl{bottom:10px;left:10px;border-right:0;border-top:0;border-bottom-left-radius:6px}
.qr-c.br{bottom:10px;right:10px;border-left:0;border-top:0;border-bottom-right-radius:6px}
.qr-txt{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:800;color:var(--deep)}

/* Footer */
.site-footer{background:var(--deep);color:#fff;position:relative}
.footer-link{color:rgba(255,255,255,.7);font-size:14px;display:inline-block;transition:color .18s,transform .18s}
.footer-link:hover{color:var(--brand-3);transform:translateX(2px)}
.footer-title{font-size:15px;font-weight:700;color:rgba(255,255,255,.92);margin-bottom:14px}

/* Experience page form bits */
.field{width:100%;height:48px;border-radius:var(--r-md);border:1px solid var(--line);background:#fff;padding:0 14px;font-size:15px;color:var(--ink);transition:border-color .18s,box-shadow .18s}
.field:focus{outline:none;border-color:var(--brand-1);box-shadow:0 0 0 3px rgba(242,84,45,.12)}

.empty-box{background:var(--mint);border-radius:var(--r-card);min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;text-align:center;padding:28px}

@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}

/* roulang page: article */
:root{
  --brand-1:#F2542D;--brand-2:#FF8A3D;--brand-3:#FFB03A;
  --brand-grad:linear-gradient(120deg,var(--brand-1) 0%,var(--brand-2) 55%,var(--brand-3) 100%);
  --deep:#08312C;--deep-2:#0E5C55;
  --mint:#EFF3F0;--bg:#F7F5F2;--surface:#FFFFFF;
  --line:#E3E8E5;--ink:#14201D;--ink-2:#5B6B66;--ink-3:#8A9995;
  --ok:#12A87A;--warn:#E8A400;--info:#2F7F8F;
  --r-card:24px;--r-md:16px;--r-sm:12px;--r-pill:999px;
  --sh-1:0 2px 8px rgba(20,32,29,.06);
  --sh-2:0 10px 30px rgba(20,32,29,.08);
  --sh-3:0 24px 60px rgba(242,84,45,.18);
  --container:1200px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:"Noto Sans SC","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
.num{font-variant-numeric:tabular-nums}
.container-x{width:100%;max-width:var(--container);margin:0 auto;padding:0 16px}
@media(min-width:640px){.container-x{padding:0 24px}}
@media(min-width:1280px){.container-x{max-width:1280px;padding:0 32px}}
.t-ink{color:var(--ink)}.t-ink2{color:var(--ink-2)}.t-ink3{color:var(--ink-3)}
.section{padding:56px 0}
@media(min-width:1024px){.section{padding:88px 0}}
.sec-title{font-size:26px;line-height:1.3;font-weight:700;letter-spacing:-.01em}
@media(min-width:1024px){.sec-title{font-size:32px}}

/* ---------- Logo ---------- */
.logo-mark{
  width:38px;height:38px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-grad);color:#fff;font-weight:800;font-size:14px;letter-spacing:.02em;
  box-shadow:0 6px 16px rgba(242,84,45,.28);flex:0 0 auto;
}

/* ---------- Header / Nav ---------- */
.site-header{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);transition:box-shadow .2s ease}
.site-header.is-scrolled{box-shadow:var(--sh-2)}
.nav-list{display:none;align-items:center;gap:4px}
@media(min-width:1024px){.nav-list{display:flex}}
.nav-item{position:relative}
.nav-link{
  display:inline-flex;align-items:center;height:40px;padding:0 14px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;color:var(--ink-2);
  transition:color .16s ease,background-color .16s ease;
}
.nav-link:hover{color:var(--brand-1);background:rgba(242,84,45,.08)}
.nav-link.is-active{color:var(--brand-1);background:rgba(242,84,45,.1)}
.nav-link:focus-visible{outline:2px solid var(--brand-1);outline-offset:2px}
.mega{
  position:absolute;top:calc(100% + 14px);left:50%;width:760px;padding:22px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-2);
  display:grid;z-index:90;opacity:0;visibility:hidden;transform:translateX(-45%) translateY(8px);
  transition:opacity .16s ease,transform .16s ease,visibility .16s ease;
}
.mega::before{content:"";position:absolute;top:-8px;left:45%;width:16px;height:16px;background:#fff;border-left:1px solid var(--line);border-top:1px solid var(--line);transform:translateX(-50%) rotate(45deg)}
.nav-item:hover .mega,.nav-item:focus-within .mega{opacity:1;visibility:visible;transform:translateX(-45%) translateY(0)}
.mega-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:24px}
.mega-entry{display:flex;align-items:flex-start;gap:12px;padding:10px;border-radius:var(--r-md);transition:background-color .16s ease}
.mega-entry:hover{background:var(--mint)}
.mega-ico{
  width:36px;height:36px;flex:0 0 auto;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--mint);color:var(--deep);font-weight:800;font-size:14px;
}
.mini-link{display:block;font-size:14px;color:var(--ink-2);padding:5px 0;transition:color .16s ease,transform .16s ease}
.mini-link:hover{color:var(--brand-1);transform:translateX(3px)}
.burger{
  width:44px;height:44px;border:1px solid var(--line);border-radius:14px;background:#fff;
  display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;
  transition:border-color .16s ease,box-shadow .16s ease;
}
.burger:hover{border-color:var(--brand-1);box-shadow:var(--sh-1)}
.burger span{width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform .2s ease,opacity .2s ease}
.burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.is-open span:nth-child(2){opacity:0}
.burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
@media(min-width:1024px){.burger{display:none}}
.drawer{
  position:fixed;left:0;right:0;top:73px;bottom:0;background:#fff;padding:18px 16px 110px;overflow-y:auto;z-index:79;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
}
.drawer.is-open{opacity:1;visibility:visible;transform:none}
.drawer-link{display:block;padding:15px 4px;font-size:16px;font-weight:600;color:var(--ink);border-bottom:1px solid var(--line)}
.drawer-link:active{color:var(--brand-1)}
.drawer-foot{position:fixed;left:16px;right:16px;bottom:18px;z-index:81}

/* ---------- Buttons / chips ---------- */
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:52px;padding:0 28px;
  border:0;border-radius:var(--r-pill);background:var(--brand-grad);color:#fff;font-size:15px;font-weight:700;
  cursor:pointer;box-shadow:0 10px 24px rgba(242,84,45,.24);
  transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease,filter .2s ease;
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 16px 32px rgba(242,84,45,.32)}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(242,84,45,.24);filter:brightness(.96)}
.btn-primary:focus-visible{outline:2px solid var(--brand-1);outline-offset:2px}
.btn-sm{min-height:44px;padding:0 20px;font-size:14px}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:52px;padding:0 26px;
  border-radius:var(--r-pill);border:1.5px solid var(--brand-1);background:#fff;color:var(--brand-1);
  font-size:15px;font-weight:700;cursor:pointer;transition:background-color .16s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-ghost:hover{background:rgba(242,84,45,.08);transform:translateY(-1px);box-shadow:var(--sh-1)}
.btn-ghost:active{transform:translateY(0)}
.btn-ghost:focus-visible{outline:2px solid var(--brand-1);outline-offset:2px}
.btn-ondark{
  display:inline-flex;align-items:center;justify-content:center;min-height:52px;padding:0 26px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.08);color:#fff;font-size:15px;font-weight:700;
  transition:background-color .16s ease,transform .2s ease;
}
.btn-ondark:hover{background:rgba(255,255,255,.18);transform:translateY(-1px)}
.chip{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:var(--r-pill);
  background:var(--mint);color:var(--deep);font-size:13px;font-weight:600;
}
.chip-grad{background:var(--brand-grad);color:#fff;font-weight:700}
.badge-ok{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--r-pill);background:rgba(18,168,122,.12);color:var(--ok);font-size:13px;font-weight:700}

/* ---------- Card ---------- */
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);
  transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease,border-color .2s ease;
}
.card-hover:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#D8E0DC}
.card-link:hover .card-title{color:var(--brand-1)}
.card-title{transition:color .16s ease}
.media{overflow:hidden;background:var(--mint);position:relative}
.media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.card-hover:hover .media img,.media:hover img{transform:scale(1.04)}
.line-clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.line-clamp-3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- Breadcrumb ---------- */
.crumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-3);white-space:nowrap;overflow-x:auto;scrollbar-width:none}
.crumb::-webkit-scrollbar{display:none}
.crumb a{transition:color .16s ease}
.crumb a:hover{color:var(--brand-1)}
.crumb .sep{color:#C6D0CC}
.crumb .current{color:var(--ink);overflow:hidden;text-overflow:ellipsis;max-width:240px}

/* ---------- Article body ---------- */
.article-body{font-size:17px;line-height:1.9;color:#1D2A27;overflow-wrap:anywhere}
.article-body p{margin:1.2em 0}
.article-body h2{position:relative;font-size:25px;line-height:1.4;font-weight:700;color:var(--ink);margin:48px 0 16px;padding-left:16px}
.article-body h2::before{content:"";position:absolute;left:0;top:.26em;bottom:.26em;width:5px;border-radius:3px;background:var(--brand-grad)}
.article-body h3{font-size:19px;font-weight:600;color:var(--ink);margin:32px 0 10px}
.article-body ul,.article-body ol{margin:1em 0;padding-left:1.35em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:.5em 0}
.article-body blockquote{margin:24px 0;padding:16px 20px;background:var(--mint);border-left:4px solid var(--brand-1);border-radius:var(--r-md);color:var(--ink-2)}
.article-body img{margin:24px auto;border-radius:var(--r-md);border:1px solid rgba(20,32,29,.06)}
.article-body a{color:var(--brand-1);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:3px}
.article-body a:hover{color:var(--brand-2)}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden}
.article-body th{background:var(--mint);text-align:left;padding:12px 14px;font-weight:700}
.article-body td{padding:12px 14px;border-top:1px solid var(--line)}
.article-body hr{border:0;border-top:1px dashed var(--line);margin:32px 0}
@media(max-width:640px){
  .article-body{font-size:16px;line-height:1.85}
  .article-body h2{font-size:21px;margin-top:36px}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
}

/* ---------- TOC ---------- */
.toc-link{display:block;font-size:14px;color:var(--ink-2);padding:7px 0 7px 12px;border-left:2px solid var(--line);transition:color .16s ease,border-color .16s ease,background-color .16s ease}
.toc-link:hover{color:var(--brand-1);border-color:var(--brand-1);background:rgba(242,84,45,.05)}
.toc-link.is-active{color:var(--brand-1);border-color:var(--brand-1);font-weight:600}

/* ---------- CTA band ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--deep);border-radius:var(--r-card)}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(100deg,rgba(8,49,44,.94) 0%,rgba(8,49,44,.82) 52%,rgba(14,92,85,.7) 100%),url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
}
.cta-band::after{
  content:"";position:absolute;width:420px;height:420px;right:-120px;top:-160px;border-radius:50%;
  background:var(--brand-grad);filter:blur(90px);opacity:.35;
}
.cta-inner{position:relative;z-index:2}

/* ---------- Footer ---------- */
.site-footer{background:var(--deep);color:#fff}
.footer-title{font-size:15px;font-weight:700;color:rgba(255,255,255,.92);margin-bottom:16px;letter-spacing:.02em}
.footer-link{font-size:14px;color:rgba(255,255,255,.7);transition:color .16s ease,transform .16s ease;display:inline-block}
.footer-link:hover{color:var(--brand-3);transform:translateX(2px)}

/* ---------- Back to top ---------- */
.backtop{
  position:fixed;right:18px;bottom:20px;width:48px;height:48px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);box-shadow:var(--sh-2);color:var(--ink);
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;z-index:60;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease,color .16s ease,border-color .16s ease;
}
.backtop.is-show{opacity:1;visibility:visible;transform:none}
.backtop:hover{color:var(--brand-1);border-color:var(--brand-1)}

/* ---------- Empty state ---------- */
.empty-state{
  background:var(--mint);border-radius:var(--r-card);min-height:260px;padding:40px 24px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;border:1px dashed #CFDAD5;
}
.empty-ico{width:56px;height:56px;border-radius:18px;background:#fff;display:flex;align-items:center;justify-content:center;box-shadow:var(--sh-1);color:var(--ink-3);font-weight:800;font-size:20px}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
}

/* roulang page: category1 */
:root{
  --brand-1:#F2542D; --brand-2:#FF8A3D; --brand-3:#FFB03A;
  --brand-grad:linear-gradient(120deg,#F2542D 0%,#FF8A3D 55%,#FFB03A 100%);
  --deep:#08312C; --deep-2:#0E5C55; --mint:#EFF3F0;
  --bg:#F7F5F2; --surface:#FFFFFF; --line:#E3E8E5;
  --ink:#14201D; --ink-2:#5B6B66; --ink-3:#8A9995;
  --ok:#12A87A; --warn:#E8A400; --info:#2F7F8F;
  --r-card:24px; --r-md:16px; --r-sm:12px; --r-pill:999px;
  --sh-1:0 2px 8px rgba(20,32,29,.06);
  --sh-2:0 10px 30px rgba(20,32,29,.08);
  --sh-3:0 24px 60px rgba(242,84,45,.18);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:"Noto Sans SC","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;border:0;background:none;cursor:pointer}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand-1);outline-offset:2px;border-radius:8px}
.container-x{width:100%;max-width:var(--container);margin:0 auto;padding:0 16px}
@media(min-width:640px){.container-x{padding:0 24px}}
@media(min-width:1024px){.container-x{padding:0 32px}}
@media(min-width:1280px){:root{--container:1280px}}
.t-ink{color:var(--ink)} .t-ink2{color:var(--ink-2)} .t-ink3{color:var(--ink-3)}
.t-brand{color:var(--brand-1)}
.tab-num{font-variant-numeric:tabular-nums}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:80;background:rgba(247,245,242,.88);backdrop-filter:blur(12px);border-bottom:1px solid transparent;transition:background .22s ease,box-shadow .22s ease,border-color .22s ease}
.site-header.is-scrolled{background:#fff;box-shadow:var(--sh-2);border-bottom-color:var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:76px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:12px;background:var(--brand-grad);color:#fff;font-weight:800;font-size:14px;letter-spacing:.02em;box-shadow:0 6px 16px rgba(242,84,45,.28)}
.brand-text{font-weight:800;font-size:18px;letter-spacing:-.01em;color:var(--ink)}
.nav-list{display:none;align-items:center;gap:2px}
@media(min-width:1024px){.nav-list{display:flex}}
.nav-item{position:relative}
.nav-link{position:relative;display:inline-flex;align-items:center;height:40px;padding:0 14px;border-radius:var(--r-pill);font-size:15px;font-weight:600;color:var(--ink-2);transition:color .18s ease,background .18s ease}
.nav-link:hover{color:var(--brand-1);background:rgba(242,84,45,.08)}
.nav-link.is-active{color:var(--brand-1);background:rgba(242,84,45,.08)}
.nav-link.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;background:var(--brand-grad)}
.mega{position:absolute;top:calc(100% + 12px);left:50%;width:780px;transform:translate(-50%,8px);background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-2);padding:22px;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .18s ease,transform .18s ease,visibility .18s;z-index:90}
.mega::before{content:"";position:absolute;top:-7px;left:50%;margin-left:-7px;width:14px;height:14px;background:#fff;border-left:1px solid var(--line);border-top:1px solid var(--line);transform:rotate(45deg);border-radius:3px 0 0 0}
.nav-item:hover .mega,.nav-item:focus-within .mega{opacity:1;visibility:visible;pointer-events:auto;transform:translate(-50%,0)}
.mega-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:22px}
.mega-entry{display:flex;gap:12px;padding:10px;border-radius:14px;transition:background .18s ease,transform .18s ease}
.mega-entry:hover{background:var(--mint);transform:translateX(2px)}
.mega-ico{width:36px;height:36px;flex:0 0 auto;border-radius:11px;background:rgba(242,84,45,.1);color:var(--brand-1);display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-size:14px}
.mini-link{display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:14px;color:var(--ink-2);padding:7px 0;border-bottom:1px dashed var(--line);transition:color .18s ease,padding-left .18s ease}
.mini-link:last-child{border-bottom:0}
.mini-link:hover{color:var(--brand-1);padding-left:4px}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.menu-toggle{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:14px;border:1px solid var(--line);background:#fff;color:var(--ink)}
.menu-toggle:hover{background:var(--mint)}
@media(min-width:1024px){.menu-toggle{display:none}}
.drawer{position:fixed;inset:76px 0 0 0;background:#fff;padding:20px 16px 32px;overflow-y:auto;transform:translateY(-12px);opacity:0;visibility:hidden;transition:opacity .2s ease,transform .2s ease,visibility .2s;z-index:75}
.drawer.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.drawer-link{display:flex;align-items:center;justify-content:space-between;padding:16px 4px;font-size:17px;font-weight:600;color:var(--ink);border-bottom:1px solid var(--line)}
.drawer-link.is-active{color:var(--brand-1)}
.drawer-foot{margin-top:24px}

/* ============ 按钮 / 徽章 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:52px;padding:12px 28px;border-radius:var(--r-pill);font-size:15px;font-weight:700;border:1.5px solid transparent;white-space:nowrap;transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease,background .2s ease,color .2s ease,filter .2s ease}
.btn-primary{background:var(--brand-grad);color:#fff;box-shadow:0 10px 24px rgba(242,84,45,.26)}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 16px 34px rgba(242,84,45,.34)}
.btn-primary:active{transform:translateY(0);filter:brightness(.95);box-shadow:inset 0 2px 6px rgba(0,0,0,.18)}
.btn-secondary{background:#fff;color:var(--brand-1);border-color:var(--brand-1)}
.btn-secondary:hover{background:rgba(242,84,45,.08);transform:translateY(-1px)}
.btn-secondary:active{transform:translateY(0)}
.btn-quiet{background:transparent;color:var(--brand-1);border-color:transparent;padding:12px 6px}
.btn-quiet:hover{color:var(--brand-2)}
.btn-dark{background:rgba(255,255,255,.06);color:#fff;border-color:rgba(255,255,255,.22)}
.btn-dark:hover{background:rgba(255,255,255,.14);transform:translateY(-1px)}
.btn-sm{min-height:44px;padding:9px 20px;font-size:14px}
.chip{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:var(--r-pill);font-size:13px;font-weight:600;background:var(--mint);color:var(--deep);font-variant-numeric:tabular-nums}
.chip-grad{background:var(--brand-grad);color:#fff;box-shadow:0 6px 16px rgba(242,84,45,.22)}
.chip-ok{background:rgba(18,168,122,.12);color:var(--ok)}
.chip-line{background:#fff;border:1px solid var(--line);color:var(--ink-2)}
.data-badge{display:flex;flex-direction:column;gap:2px;padding:12px 18px;border-radius:var(--r-md);background:#fff;border:1px solid var(--line);box-shadow:var(--sh-1)}
.data-badge .num{font-size:24px;font-weight:800;line-height:1.2;font-variant-numeric:tabular-nums;color:var(--ink)}
.data-badge .num small{font-size:13px;font-weight:600;color:var(--ink-3);margin-left:3px}
.data-badge .cap{font-size:13px;color:var(--ink-3)}

/* ============ 卡片 / 图片 ============ */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease}
.card-hover:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.media{position:relative;overflow:hidden;background:var(--mint);border-radius:var(--r-md);border:1px solid rgba(20,32,29,.06)}
.media img{width:100%;height:100%;object-fit:cover;transition:transform .3s cubic-bezier(.2,.7,.3,1)}
.media:hover img{transform:scale(1.03)}
.ico-square{width:44px;height:44px;flex:0 0 auto;border-radius:14px;background:var(--mint);color:var(--deep);display:inline-flex;align-items:center;justify-content:center;font-weight:800;font-size:15px}
.ico-square.grad{background:var(--brand-grad);color:#fff}

/* ============ 面包屑 ============ */
.crumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-3);overflow-x:auto;white-space:nowrap;padding-bottom:2px}
.crumb::-webkit-scrollbar{height:0}
.crumb a{color:var(--ink-3);transition:color .18s ease}
.crumb a:hover{color:var(--brand-1)}
.crumb .sep{color:#C8D2CD}
.crumb .now{color:var(--ink);font-weight:600}

/* ============ Hero ============ */
.hero-sec{position:relative;padding:34px 0 56px;overflow:hidden}
@media(min-width:1024px){.hero-sec{padding:44px 0 96px}}
.hero-sec::before{content:"";position:absolute;top:-160px;right:-120px;width:520px;height:520px;border-radius:50%;background:radial-gradient(circle at center,rgba(255,138,61,.28),rgba(255,138,61,0) 68%);filter:blur(20px);pointer-events:none}
.hero-sec::after{content:"";position:absolute;bottom:-200px;left:-160px;width:460px;height:460px;border-radius:50%;background:radial-gradient(circle at center,rgba(14,92,85,.16),rgba(14,92,85,0) 70%);pointer-events:none}
.hero-title{font-size:30px;font-weight:800;letter-spacing:-.01em;line-height:1.28;color:var(--ink)}
@media(min-width:1024px){.hero-title{font-size:48px;line-height:1.2}}
.hero-sub{font-size:17px;font-weight:600;color:var(--deep-2);line-height:1.7}
@media(min-width:1024px){.hero-sub{font-size:20px}}
.hero-lead{font-size:15px;color:var(--ink-2);max-width:560px}
.device-frame{position:relative;border-radius:28px;background:#fff;padding:12px;border:1px solid var(--line);box-shadow:var(--sh-2)}
.float-badge{position:absolute;display:inline-flex;align-items:center;gap:7px;padding:9px 14px;border-radius:var(--r-pill);background:#fff;border:1px solid var(--line);box-shadow:var(--sh-2);font-size:13px;font-weight:700;color:var(--ink);font-variant-numeric:tabular-nums}
.float-badge .dot{width:8px;height:8px;border-radius:50%;background:var(--brand-grad)}
.float-badge.fb-1{top:18px;left:-14px}
.float-badge.fb-2{bottom:26px;right:-14px}
@media(max-width:639px){.float-badge.fb-1{left:6px;top:10px}.float-badge.fb-2{right:6px;bottom:12px}}

/* ============ 板块标题 ============ */
.sec{padding:56px 0}
@media(min-width:1024px){.sec{padding:96px 0}}
.sec-mint{background:var(--mint)}
.sec-title{font-size:24px;font-weight:700;letter-spacing:-.01em;line-height:1.35;color:var(--ink)}
@media(min-width:1024px){.sec-title{font-size:32px}}
.sec-lead{font-size:15px;color:var(--ink-2);margin-top:10px;max-width:720px}

/* ============ 时间线 ============ */
.tl-item{position:relative;display:grid;grid-template-columns:44px 1fr;gap:14px;padding-bottom:20px}
@media(min-width:768px){.tl-item{grid-template-columns:56px 1fr;gap:20px;padding-bottom:26px}}
.tl-item:last-child{padding-bottom:0}
.tl-rail{position:relative;display:flex;justify-content:flex-start}
.tl-rail::before{content:"";position:absolute;top:50px;bottom:-26px;left:50%;margin-left:-1px;width:2px;background:linear-gradient(180deg,rgba(242,84,45,.5),rgba(242,84,45,.06))}
.tl-item:last-child .tl-rail::before{display:none}
.tl-dot{position:relative;z-index:1;width:44px;height:44px;border-radius:50%;background:var(--brand-grad);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:16px;box-shadow:0 10px 22px rgba(242,84,45,.26);font-variant-numeric:tabular-nums}
@media(min-width:768px){.tl-dot{width:52px;height:52px;font-size:18px}}
.tl-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:20px;transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease}
.tl-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
@media(min-width:768px){.tl-card{padding:26px 28px}}
.tl-title{font-size:19px;font-weight:600;color:var(--ink)}
@media(min-width:768px){.tl-title{font-size:22px}}
.tl-text{font-size:15px;color:var(--ink-2);margin-top:8px;max-width:760px}

/* ============ 平台卡 ============ */
.plat-card{display:flex;flex-direction:column;gap:14px;padding:24px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease}
.plat-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.plat-row{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:14px;color:var(--ink-2);padding:9px 0;border-bottom:1px dashed var(--line)}
.plat-row:last-of-type{border-bottom:0}
.plat-row b{color:var(--ink);font-weight:700;font-variant-numeric:tabular-nums}

/* ============ FAQ ============ */
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;margin-bottom:12px}
.faq-item:last-child{margin-bottom:0}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 22px;text-align:left;font-size:17px;font-weight:600;color:var(--ink);transition:background .18s ease}
.faq-q:hover{background:var(--mint)}
.faq-icon{flex:0 0 auto;width:30px;height:30px;border-radius:50%;border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;color:var(--brand-1);font-weight:700;font-size:16px;line-height:1;transition:transform .2s ease,background .2s ease,color .2s ease,border-color .2s ease}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--brand-grad);color:#fff;border-color:transparent}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s ease}
.faq-a-inner{padding:16px 22px 22px;border-top:1px dashed var(--line);font-size:15px;color:var(--ink-2)}

/* ============ CTA ============ */
.cta-band{position:relative;background:var(--deep);overflow:hidden;padding:56px 0}
@media(min-width:1024px){.cta-band{padding:88px 0}}
.cta-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.2}
.cta-glow{position:absolute;top:-140px;right:-100px;width:460px;height:460px;border-radius:50%;background:radial-gradient(circle at center,rgba(255,138,61,.4),rgba(255,138,61,0) 68%);pointer-events:none}
.cta-title{font-size:26px;font-weight:800;color:#fff;letter-spacing:-.01em;line-height:1.32}
@media(min-width:1024px){.cta-title{font-size:36px}}
.cta-text{font-size:15px;color:rgba(255,255,255,.72);margin-top:12px;max-width:560px}

/* ============ 页脚 ============ */
.site-footer{background:var(--deep);color:#fff;position:relative;overflow:hidden}
.site-footer::after{content:"";position:absolute;bottom:-180px;left:-120px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle at center,rgba(255,176,58,.16),rgba(255,176,58,0) 70%);pointer-events:none}
.footer-title{color:rgba(255,255,255,.9);font-size:15px;font-weight:700;margin-bottom:14px}
.footer-link{display:inline-block;color:rgba(255,255,255,.7);font-size:14px;transition:color .18s ease,transform .18s ease}
.footer-link:hover{color:var(--brand-3);transform:translateX(2px)}

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: category3 */
:root{
    --brand-1:#F2542D;
    --brand-2:#FF8A3D;
    --brand-3:#FFB03A;
    --brand-grad:linear-gradient(120deg,var(--brand-1) 0%,var(--brand-2) 55%,var(--brand-3) 100%);
    --deep:#08312C;
    --deep-2:#0E5C55;
    --mint:#EFF3F0;
    --bg:#F7F5F2;
    --surface:#FFFFFF;
    --line:#E3E8E5;
    --ink:#14201D;
    --ink-2:#5B6B66;
    --ink-3:#8A9995;
    --ok:#12A87A;
    --warn:#E8A400;
    --info:#2F7F8F;
    --r-card:24px;
    --r-md:16px;
    --r-sm:12px;
    --r-pill:999px;
    --sh-1:0 2px 8px rgba(20,32,29,.06);
    --sh-2:0 10px 30px rgba(20,32,29,.08);
    --sh-3:0 24px 60px rgba(242,84,45,.18);
    --container:1200px;
  }
  *{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    margin:0;
    background:var(--bg);
    color:var(--ink);
    font-family:"Noto Sans SC","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
    font-size:16px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none}
  button{font-family:inherit}
  h1,h2,h3,h4,p,ul,ol,figure{margin:0}
  ul,ol{padding:0;list-style:none}
  .num{font-variant-numeric:tabular-nums}
  .t-ink{color:var(--ink)}
  .t-ink2{color:var(--ink-2)}
  .t-ink3{color:var(--ink-3)}
  .container-x{width:100%;max-width:var(--container);margin:0 auto;padding-left:24px;padding-right:24px}
  @media (min-width:1280px){:root{--container:1280px}}

  /* ---------- header ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(247,245,242,.86);
    backdrop-filter:blur(12px);
    border-bottom:1px solid transparent;
    transition:background .22s ease,box-shadow .22s ease,border-color .22s ease;
  }
  .site-header.is-scrolled{background:rgba(255,255,255,.96);border-bottom-color:var(--line);box-shadow:var(--sh-2)}
  .nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;height:76px}
  .brand{display:flex;align-items:center;gap:10px}
  .logo-mark{
    width:38px;height:38px;border-radius:12px;
    background:var(--brand-grad);
    color:#fff;font-weight:800;font-size:15px;
    display:flex;align-items:center;justify-content:center;
    letter-spacing:.02em;
    box-shadow:0 6px 16px rgba(242,84,45,.28);
    flex:0 0 auto;
  }
  .brand-name{font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--ink)}
  .nav-list{display:flex;align-items:center;gap:4px}
  .nav-item{position:relative}
  .nav-link{
    display:inline-flex;align-items:center;
    padding:9px 16px;border-radius:var(--r-pill);
    font-size:15px;font-weight:600;color:var(--ink-2);
    transition:color .18s ease,background .18s ease,transform .18s ease;
  }
  .nav-link:hover{color:var(--brand-1);background:rgba(242,84,45,.08)}
  .nav-link:focus-visible{outline:2px solid var(--brand-1);outline-offset:2px}
  .nav-link.is-active{color:var(--brand-1);background:rgba(242,84,45,.1)}
  .mega{
    position:absolute;top:calc(100% + 12px);left:50%;transform:translate(-50%,8px);
    width:760px;background:var(--surface);border:1px solid var(--line);
    border-radius:var(--r-card);box-shadow:var(--sh-2);
    padding:22px;
    opacity:0;visibility:hidden;pointer-events:none;
    transition:opacity .18s ease,transform .18s ease,visibility .18s;
  }
  .nav-item:hover .mega,.nav-item:focus-within .mega{opacity:1;visibility:visible;pointer-events:auto;transform:translate(-50%,0)}
  .mega::before{
    content:"";position:absolute;top:-7px;left:50%;transform:translateX(-50%) rotate(45deg);
    width:14px;height:14px;background:var(--surface);
    border-left:1px solid var(--line);border-top:1px solid var(--line);border-radius:3px 0 0 0;
  }
  .mega-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:22px}
  .mega-entry{display:flex;gap:12px;padding:10px;border-radius:var(--r-md);transition:background .18s ease}
  .mega-entry:hover{background:var(--mint)}
  .mega-ico{
    width:36px;height:36px;border-radius:10px;flex:0 0 auto;
    background:var(--mint);color:var(--deep);
    display:flex;align-items:center;justify-content:center;
    font-weight:700;font-size:14px;
  }
  .mini-link{
    display:flex;align-items:center;justify-content:space-between;
    font-size:14px;color:var(--ink-2);padding:6px 0;
    border-bottom:1px dashed var(--line);
    transition:color .18s ease,padding-left .18s ease;
  }
  .mini-link:last-child{border-bottom:0}
  .mini-link:hover{color:var(--brand-1);padding-left:4px}
  .media{position:relative;overflow:hidden;background:var(--mint)}
  .media::after{content:"";position:absolute;inset:0;border-radius:inherit;box-shadow:inset 0 0 0 1px rgba(20,32,29,.06)}
  .media img{width:100%;height:100%;object-fit:cover}

  .nav-toggle{
    display:none;width:44px;height:44px;border-radius:14px;
    background:var(--surface);border:1px solid var(--line);
    align-items:center;justify-content:center;cursor:pointer;
  }
  .nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative}
  .nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px}
  .nav-toggle span::before{top:-6px}
  .nav-toggle span::after{top:6px}

  .drawer-mask{position:fixed;inset:0;background:rgba(8,49,44,.4);opacity:0;visibility:hidden;transition:.2s;z-index:70}
  .drawer-mask.is-open{opacity:1;visibility:visible}
  .drawer{
    position:fixed;top:0;right:0;bottom:0;width:min(86vw,360px);
    background:#fff;z-index:80;padding:22px 20px 28px;
    transform:translateX(102%);transition:transform .24s cubic-bezier(.2,.7,.3,1);
    overflow-y:auto;display:flex;flex-direction:column;
  }
  .drawer.is-open{transform:translateX(0)}
  .drawer-link{
    display:block;padding:13px 12px;border-radius:var(--r-md);
    font-size:16px;font-weight:600;color:var(--ink-2);
    border-bottom:1px solid var(--line);
  }
  .drawer-link.is-active{color:var(--brand-1);background:rgba(242,84,45,.08)}
  .drawer-close{position:absolute;top:16px;right:16px;width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:#fff;cursor:pointer;font-size:18px;color:var(--ink-2)}

  /* ---------- buttons ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:52px;padding:12px 28px;border-radius:var(--r-pill);
    font-size:16px;font-weight:700;cursor:pointer;border:0;
    transition:transform .18s cubic-bezier(.2,.7,.3,1),box-shadow .18s ease,filter .18s ease,background .18s ease,color .18s ease;
  }
  .btn-primary{background:var(--brand-grad);color:#fff;box-shadow:0 10px 24px rgba(242,84,45,.28)}
  .btn-primary:hover{filter:brightness(1.08);box-shadow:0 16px 34px rgba(242,84,45,.32);transform:translateY(-1px)}
  .btn-primary:active{transform:translateY(1px);filter:brightness(.96)}
  .btn-primary:focus-visible{outline:2px solid var(--brand-1);outline-offset:2px}
  .btn-ghost{background:#fff;color:var(--brand-1);border:1.5px solid var(--brand-1)}
  .btn-ghost:hover{background:rgba(242,84,45,.08);transform:translateY(-1px)}
  .btn-ghost:focus-visible{outline:2px solid var(--brand-1);outline-offset:2px}
  .btn-dark{background:rgba(255,255,255,.06);color:#fff;border:1.5px solid rgba(255,255,255,.22)}
  .btn-dark:hover{background:rgba(255,255,255,.14);transform:translateY(-1px)}
  .btn-dark:focus-visible{outline:2px solid #fff;outline-offset:2px}
  .btn-sm{min-height:44px;padding:10px 20px;font-size:14px}

  .chip{
    display:inline-flex;align-items:center;gap:6px;
    padding:6px 14px;border-radius:var(--r-pill);
    font-size:13px;font-weight:600;line-height:1.6;
  }
  .chip-mint{background:var(--mint);color:var(--deep)}
  .chip-grad{background:var(--brand-grad);color:#fff}
  .chip-ok{background:rgba(18,168,122,.12);color:var(--ok)}

  .card{
    background:var(--surface);border:1px solid var(--line);
    border-radius:var(--r-card);box-shadow:var(--sh-1);
    transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease;
  }
  .card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}

  /* breadcrumb */
  .crumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-3);overflow-x:auto;white-space:nowrap;padding-bottom:2px}
  .crumb a{color:var(--ink-3)}
  .crumb a:hover{color:var(--brand-1)}
  .crumb .sep{color:#c9d2ce}
  .crumb .cur{color:var(--ink);font-weight:600}

  /* hero */
  .cat3-hero{background:var(--mint);border-bottom:1px solid var(--line);position:relative;overflow:hidden}
  .cat3-hero::after{
    content:"";position:absolute;width:420px;height:420px;right:-140px;top:-160px;border-radius:50%;
    background:var(--brand-grad);opacity:.12;filter:blur(70px);
  }
  .hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center;position:relative;z-index:1}
  .h1{font-size:48px;line-height:1.2;font-weight:800;letter-spacing:-.01em}
  .lead{font-size:17px;color:var(--ink-2);max-width:560px;line-height:1.9}
  .hero-media{border-radius:var(--r-card);overflow:hidden;position:relative;aspect-ratio:4/3;box-shadow:var(--sh-2)}
  .hero-media img{width:100%;height:100%;object-fit:cover}
  .hero-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
  .float-badge{
    position:absolute;background:#fff;border-radius:var(--r-md);
    padding:10px 14px;box-shadow:var(--sh-2);border:1px solid var(--line);
  }

  /* section */
  .section{padding:88px 0}
  .section-sm{padding:64px 0}
  .sec-head{max-width:680px}
  .h2{font-size:32px;line-height:1.3;font-weight:700;letter-spacing:-.01em}
  .h3{font-size:22px;line-height:1.45;font-weight:600}
  .muted{color:var(--ink-2)}

  /* security cards */
  .sec-cards{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;margin-top:40px}
  .sec-big{grid-column:span 6;padding:0;overflow:hidden;display:flex;flex-direction:column}
  .sec-small{grid-column:span 3;padding:26px;display:flex;flex-direction:column;gap:14px}
  .sec-ico{
    width:46px;height:46px;border-radius:14px;display:flex;align-items:center;justify-content:center;
    background:var(--mint);color:var(--deep);font-weight:800;font-size:16px;
  }
  .bullet{display:flex;gap:10px;font-size:15px;color:var(--ink-2);line-height:1.75}
  .bullet::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--brand-1);margin-top:11px;flex:0 0 auto}

  /* faq */
  .faq-cols{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:40px;align-items:start}
  .faq-item{
    background:var(--surface);border:1px solid var(--line);
    border-radius:var(--r-card);box-shadow:var(--sh-1);
    margin-bottom:12px;overflow:hidden;
    transition:box-shadow .2s ease,border-color .2s ease;
  }
  .faq-item:hover{box-shadow:var(--sh-2)}
  .faq-item.is-open{border-color:rgba(242,84,45,.4)}
  .faq-q{
    width:100%;background:transparent;border:0;cursor:pointer;
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:20px 22px;text-align:left;
    font-size:17px;font-weight:600;color:var(--ink);line-height:1.6;
  }
  .faq-q:focus-visible{outline:2px solid var(--brand-1);outline-offset:-2px}
  .faq-ico{
    width:30px;height:30px;flex:0 0 auto;border-radius:50%;
    background:var(--mint);color:var(--deep);
    display:flex;align-items:center;justify-content:center;
    font-size:16px;font-weight:700;
    transition:transform .2s ease,background .2s ease,color .2s ease;
  }
  .faq-item.is-open .faq-ico{background:var(--brand-grad);color:#fff;transform:rotate(45deg)}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .26s ease}
  .faq-item.is-open .faq-a{max-height:420px}
  .faq-a-inner{padding:0 22px 22px;border-top:1px dashed var(--line);margin-top:0;padding-top:16px;font-size:15px;color:var(--ink-2)}
  .faq-a-inner a{color:var(--brand-1);text-decoration:underline;text-underline-offset:2px}

  /* form */
  .form-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-2);padding:32px}
  .field{margin-bottom:18px}
  .field label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:8px}
  .field input,.field select,.field textarea{
    width:100%;border:1px solid var(--line);border-radius:var(--r-md);
    background:#fff;color:var(--ink);font-size:15px;font-family:inherit;
    padding:12px 14px;transition:border-color .18s ease,box-shadow .18s ease;
  }
  .field input,.field select{height:48px}
  .field textarea{min-height:132px;resize:vertical;line-height:1.8}
  .field input:focus,.field select:focus,.field textarea:focus{
    outline:none;border-color:var(--brand-1);box-shadow:0 0 0 3px rgba(242,84,45,.12);
  }
  .field .hint{font-size:13px;color:var(--ink-3);margin-top:6px}
  .side-note{background:var(--mint);border-radius:var(--r-card);padding:28px;border:1px solid var(--line)}

  /* cta */
  .cta-band{
    position:relative;border-radius:var(--r-card);overflow:hidden;
    background:var(--deep);color:#fff;padding:52px 44px;
  }
  .cta-band .bg{position:absolute;inset:0;opacity:.22}
  .cta-band .bg img{width:100%;height:100%;object-fit:cover}
  .cta-band .veil{position:absolute;inset:0;background:linear-gradient(120deg,rgba(8,49,44,.94) 0%,rgba(8,49,44,.72) 100%)}
  .cta-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.1fr .9fr;gap:32px;align-items:center}
  .cta-btns{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}

  /* footer */
  .site-footer{background:var(--deep);color:#fff;margin-top:88px}
  .footer-title{font-size:15px;font-weight:700;color:rgba(255,255,255,.92);margin-bottom:16px}
  .footer-link{
    display:inline-block;font-size:14px;color:rgba(255,255,255,.7);
    transition:color .18s ease,transform .18s ease;
  }
  .footer-link:hover{color:var(--brand-3);transform:translateX(2px)}
  .footer-link:focus-visible{outline:2px solid var(--brand-3);outline-offset:2px;border-radius:4px}

  .sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

  @media (prefers-reduced-motion:reduce){
    *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  }

  @media (max-width:1023px){
    .nav-list{display:none}
    .nav-toggle{display:flex}
    .hero-grid{grid-template-columns:1fr;gap:32px}
    .h1{font-size:34px}
    .sec-big{grid-column:span 12}
    .sec-small{grid-column:span 6}
    .faq-cols{grid-template-columns:1fr}
    .cta-inner{grid-template-columns:1fr}
    .section{padding:64px 0}
  }
  @media (max-width:639px){
    .container-x{padding-left:16px;padding-right:16px}
    .h1{font-size:30px}
    .h2{font-size:24px}
    .h3{font-size:19px}
    .sec-small{grid-column:span 12}
    .cta-band{padding:36px 22px}
    .cta-btns{grid-template-columns:1fr}
    .form-card{padding:22px}
    .section{padding:56px 0}
  }

/* roulang page: category2 */
:root{
    --brand-1:#F2542D;
    --brand-2:#FF8A3D;
    --brand-3:#FFB03A;
    --brand-grad:linear-gradient(120deg,var(--brand-1) 0%,var(--brand-2) 55%,var(--brand-3) 100%);
    --deep:#08312C;
    --deep-2:#0E5C55;
    --mint:#EFF3F0;
    --bg:#F7F5F2;
    --surface:#FFFFFF;
    --line:#E3E8E5;
    --ink:#14201D;
    --ink-2:#5B6B66;
    --ink-3:#8A9995;
    --ok:#12A87A;
    --warn:#E8A400;
    --info:#2F7F8F;
    --r-card:24px;
    --r-md:16px;
    --r-sm:12px;
    --r-pill:999px;
    --sh-1:0 2px 8px rgba(20,32,29,.06);
    --sh-2:0 10px 30px rgba(20,32,29,.08);
    --sh-3:0 24px 60px rgba(242,84,45,.18);
    --container:1200px;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;
    font-family:"Noto Sans SC","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
    font-size:16px;
    line-height:1.85;
    color:var(--ink);
    background:var(--bg);
    overflow-x:hidden;
  }
  body.no-scroll{overflow:hidden}
  img{max-width:100%;display:block;border:0}
  a{color:inherit;text-decoration:none}
  button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
  ul,ol{margin:0;padding:0;list-style:none}
  p{margin:0}
  :focus-visible{outline:2px solid var(--brand-1);outline-offset:2px;border-radius:8px}
  .num{font-variant-numeric:tabular-nums}
  .t-ink{color:var(--ink)}
  .t-ink2{color:var(--ink-2)}
  .t-ink3{color:var(--ink-3)}

  /* 容器与板块 */
  .container-x{width:100%;max-width:var(--container);margin-inline:auto;padding-inline:16px}
  @media(min-width:640px){.container-x{padding-inline:24px}}
  @media(min-width:1024px){.container-x{padding-inline:32px}}
  @media(min-width:1280px){.container-x{max-width:1280px}}
  .section{padding-block:56px}
  @media(min-width:1024px){.section{padding-block:96px}}
  .section-mint{background:var(--mint)}
  .section-tight{padding-block:40px}
  @media(min-width:1024px){.section-tight{padding-block:64px}}

  .h1{font-size:30px;line-height:1.32;font-weight:800;letter-spacing:-.01em;margin:0}
  .h2{font-size:24px;line-height:1.4;font-weight:700;letter-spacing:-.01em;margin:0}
  .h3{font-size:19px;line-height:1.5;font-weight:600;margin:0}
  @media(min-width:1024px){
    .h1{font-size:48px;line-height:1.2}
    .h2{font-size:32px}
    .h3{font-size:22px}
  }
  .lead{font-size:16px;color:var(--ink-2)}
  .section-head{max-width:760px}
  .section-head .h2{margin-bottom:12px}
  .section-head p{color:var(--ink-2);font-size:16px}

  /* 顶部导航 */
  .site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .2s ease}
  .site-header.is-scrolled{box-shadow:var(--sh-2)}
  .header-inner{height:74px;display:flex;align-items:center;justify-content:space-between;gap:16px}
  .brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
  .logo-mark{
    width:38px;height:38px;border-radius:12px;background:var(--brand-grad);color:#fff;
    font-weight:800;font-size:14px;display:grid;place-items:center;letter-spacing:.02em;
    box-shadow:0 6px 16px rgba(242,84,45,.28);
  }
  .brand-name{font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--ink)}
  .nav-list{display:none;align-items:center;gap:4px}
  @media(min-width:1024px){.nav-list{display:flex}}
  .nav-item{position:relative}
  .nav-link{
    position:relative;display:inline-flex;align-items:center;min-height:44px;padding:9px 16px;
    border-radius:var(--r-pill);font-size:15px;font-weight:600;color:var(--ink-2);
    transition:color .2s ease,background .2s ease;
  }
  .nav-link:hover{color:var(--brand-1);background:rgba(242,84,45,.08)}
  .nav-link.is-active{color:var(--brand-1);background:rgba(242,84,45,.10)}
  .nav-link.is-active::after{
    content:"";position:absolute;left:16px;right:16px;bottom:5px;height:2px;border-radius:2px;background:var(--brand-grad);
  }
  .header-actions{display:flex;align-items:center;gap:10px}
  .header-cta{display:none}
  @media(min-width:1024px){.header-cta{display:inline-flex}}
  .burger{
    width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--line);background:#fff;
    display:grid;place-content:center;gap:5px;transition:border-color .2s,box-shadow .2s;
  }
  .burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink)}
  .burger:hover{border-color:var(--brand-1)}
  @media(min-width:1024px){.burger{display:none}}

  /* Mega 面板 */
  .mega{
    position:absolute;top:calc(100% + 12px);left:50%;width:min(860px,88vw);
    background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-2);
    padding:20px;opacity:0;visibility:hidden;pointer-events:none;
    transform:translate(-50%,8px);
    transition:opacity .18s ease,transform .18s ease,visibility .18s ease;
  }
  .mega::before{
    content:"";position:absolute;top:-7px;left:50%;transform:translateX(-50%) rotate(45deg);
    width:14px;height:14px;background:#fff;border-left:1px solid var(--line);border-top:1px solid var(--line);
  }
  .nav-item:hover .mega,.nav-item:focus-within .mega,.mega.is-open{
    opacity:1;visibility:visible;pointer-events:auto;transform:translate(-50%,0);
  }
  .mega-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:22px}
  .mega-title{font-size:13px;font-weight:700;color:var(--ink-3);letter-spacing:.04em;margin:0 0 8px}
  .mega-entry{display:flex;gap:12px;align-items:flex-start;padding:10px;border-radius:var(--r-md);transition:background .18s ease}
  .mega-entry:hover{background:var(--mint)}
  .mega-ico{
    width:34px;height:34px;border-radius:10px;background:var(--mint);color:var(--deep);
    display:grid;place-items:center;font-weight:700;font-size:14px;flex-shrink:0;
  }
  .mini-link{display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:14px;color:var(--ink-2);padding:7px 0;border-bottom:1px dashed var(--line);transition:color .18s ease,transform .18s ease}
  .mini-link:last-of-type{border-bottom:0}
  .mini-link:hover{color:var(--brand-1);transform:translateX(2px)}

  /* 移动端抽屉 */
  .drawer{
    position:fixed;inset:0;z-index:80;background:#fff;display:flex;flex-direction:column;
    transform:translateX(100%);transition:transform .24s cubic-bezier(.2,.7,.3,1);
    visibility:hidden;
  }
  .drawer.is-open{transform:none;visibility:visible}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px;border-bottom:1px solid var(--line)}
  .drawer-close{width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--line);display:grid;place-items:center;font-size:18px;color:var(--ink-2)}
  .drawer-nav{padding:12px 16px;overflow-y:auto;flex:1}
  .drawer-link{display:block;padding:14px 12px;border-radius:var(--r-md);font-size:16px;font-weight:600;color:var(--ink);transition:background .18s ease,color .18s ease}
  .drawer-link:hover,.drawer-link.is-active{background:var(--mint);color:var(--brand-1)}
  .drawer-sub{display:block;padding:10px 12px 10px 26px;font-size:14px;color:var(--ink-2);border-radius:var(--r-sm)}
  .drawer-sub:hover{color:var(--brand-1)}
  .drawer-foot{padding:16px;border-top:1px solid var(--line);background:var(--bg)}

  /* 按钮 */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:52px;padding:0 28px;
    border-radius:var(--r-pill);font-size:15px;font-weight:700;white-space:nowrap;
    transition:transform .18s cubic-bezier(.2,.7,.3,1),box-shadow .18s ease,filter .18s ease,background .18s ease,border-color .18s ease,color .18s ease;
  }
  .btn-primary{background:var(--brand-grad);color:#fff;box-shadow:0 8px 22px rgba(242,84,45,.28)}
  .btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 14px 32px rgba(242,84,45,.34)}
  .btn-primary:active{transform:translateY(0);filter:brightness(.96);box-shadow:inset 0 2px 6px rgba(0,0,0,.14)}
  .btn-ghost{background:#fff;color:var(--brand-1);border:1.5px solid var(--brand-1)}
  .btn-ghost:hover{background:rgba(242,84,45,.08);transform:translateY(-1px)}
  .btn-ghost:active{transform:translateY(0);filter:brightness(.98)}
  .btn-on-dark{background:rgba(255,255,255,.06);border:1.5px solid rgba(255,255,255,.28);color:#fff}
  .btn-on-dark:hover{background:rgba(255,255,255,.14);transform:translateY(-1px)}
  .btn-sm{min-height:44px;padding:0 20px;font-size:14px}

  /* 标签与徽章 */
  .chip{
    display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:var(--r-pill);
    font-size:13px;font-weight:600;background:var(--mint);color:var(--deep);
  }
  .chip-brand{background:var(--brand-grad);color:#fff}
  .chip-dark{background:rgba(255,255,255,.12);color:#fff}
  .chip-ok{background:rgba(18,168,122,.12);color:var(--ok)}
  .stat-badge{display:flex;flex-direction:column;gap:2px;padding:10px 16px;border-radius:var(--r-md);background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14)}
  .stat-badge .num{font-size:19px;font-weight:800;color:#fff;line-height:1.3}
  .stat-badge .lb{font-size:12px;color:rgba(255,255,255,.68)}

  /* 面包屑 */
  .breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-3);overflow-x:auto;white-space:nowrap;padding-bottom:2px}
  .breadcrumb::-webkit-scrollbar{display:none}
  .breadcrumb a{color:rgba(255,255,255,.72);transition:color .18s ease}
  .breadcrumb a:hover{color:var(--brand-3)}
  .breadcrumb .sep{color:rgba(255,255,255,.42)}
  .breadcrumb .current{color:#fff}

  /* 深色 Hero */
  .hero-dark{position:relative;background:var(--deep);color:#fff;padding-block:44px 64px;overflow:hidden}
  @media(min-width:1024px){.hero-dark{padding-block:56px 88px}}
  .hero-dark::before{
    content:"";position:absolute;width:560px;height:560px;right:-140px;top:-200px;pointer-events:none;
    background:radial-gradient(circle at center,rgba(242,84,45,.55),rgba(255,176,58,.16) 48%,transparent 72%);
    filter:blur(70px);
  }
  .hero-dark::after{
    content:"";position:absolute;width:380px;height:380px;left:-160px;bottom:-180px;pointer-events:none;
    background:radial-gradient(circle at center,rgba(14,92,85,.85),transparent 68%);
    filter:blur(60px);
  }
  .hero-inner{position:relative;z-index:1}
  .hero-grid{display:grid;gap:32px;margin-top:28px}
  @media(min-width:1024px){.hero-grid{grid-template-columns:1.05fr .95fr;gap:52px;align-items:center;margin-top:36px}}
  .hero-dark .h1{color:#fff;max-width:620px}
  .hero-sub{margin-top:18px;font-size:16px;line-height:1.9;color:rgba(255,255,255,.78);max-width:600px}
  .hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
  .hero-stats{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
  .hero-figure{position:relative;margin-top:8px}
  .hero-figure .media{aspect-ratio:4/3;border-radius:var(--r-card);border:1px solid rgba(255,255,255,.14);box-shadow:0 30px 70px rgba(0,0,0,.35)}
  .float-badge{position:absolute;z-index:2;background:#fff;border-radius:var(--r-md);box-shadow:var(--sh-2);padding:10px 14px;min-width:104px}
  .float-badge .num{display:block;font-size:17px;font-weight:800;color:var(--brand-1);line-height:1.35}
  .float-badge .lb{display:block;font-size:12px;color:var(--ink-3)}
  .fb-1{top:16px;right:-12px}
  .fb-2{bottom:20px;left:-14px}
  @media(max-width:640px){
    .fb-1{right:6px;top:10px;padding:8px 12px;min-width:92px}
    .fb-2{left:6px;bottom:12px;padding:8px 12px;min-width:92px}
  }

  /* 通用媒体与卡片 */
  .media{position:relative;overflow:hidden;border-radius:var(--r-card);background:var(--mint)}
  .media img{width:100%;height:100%;object-fit:cover;transition:transform .4s cubic-bezier(.2,.7,.3,1)}
  .media::after{content:"";position:absolute;inset:0;border-radius:inherit;box-shadow:inset 0 0 0 1px rgba(20,32,29,.06)}
  .card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease}
  .card-hover:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
  .card-body{padding:20px 22px 22px}
  .card-title{font-size:17px;font-weight:700;line-height:1.55;margin:10px 0 8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .18s ease}
  .card-desc{font-size:14px;color:var(--ink-2);line-height:1.8;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
  .card-hover:hover .card-title{color:var(--brand-1)}
  .card-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:16px;padding-top:14px;border-top:1px solid var(--line);font-size:13px}
  .read-link{display:inline-flex;align-items:center;gap:4px;font-size:13px;font-weight:700;color:var(--brand-1)}
  .read-link span{transition:transform .18s ease}
  .read-link:hover span{transform:translateX(4px)}

  /* Bento 特性墙 */
  .bento{display:grid;gap:20px}
  @media(min-width:640px){.bento{grid-template-columns:repeat(2,1fr)}}
  @media(min-width:1024px){
    .bento{grid-template-columns:repeat(4,1fr);grid-auto-rows:minmax(196px,auto)}
    .bento-main{grid-column:span 2;grid-row:span 2}
    .bento-sm{grid-column:span 1}
  }
  .bento-main{display:flex;flex-direction:column;padding:0;overflow:hidden}
  .bento-main .media{aspect-ratio:16/9;border-radius:0;flex-shrink:0}
  .bento-main-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px}
  .bento-sm{padding:20px;display:flex;flex-direction:column;gap:10px}
  .bento-ico{width:38px;height:38px;border-radius:12px;background:var(--mint);color:var(--deep);display:grid;place-items:center;font-weight:800;font-size:15px}
  .bento-sm .bento-ico{background:rgba(242,84,45,.10);color:var(--brand-1)}

  /* 截图轮播 */
  .scroll-wrap{position:relative;margin-top:28px}
  .scroll-track{
    display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
    padding:6px 2px 18px;scrollbar-width:none;-ms-overflow-style:none;
  }
  .scroll-track::-webkit-scrollbar{display:none}
  .scroll-item{flex:0 0 268px;scroll-snap-align:start}
  @media(min-width:1024px){.scroll-item{flex:0 0 306px}}
  .shot-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease}
  .shot-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
  .shot-card .media{aspect-ratio:4/3;border-radius:0}
  .shot-card:hover .media img{transform:scale(1.04)}
  .shot-body{padding:14px 18px 18px}
  .shot-body strong{display:block;font-size:15px;font-weight:700}
  .shot-body span{display:block;font-size:13px;color:var(--ink-3);margin-top:2px}
  .scroll-controls{display:flex;align-items:center;gap:12px;margin-top:6px}
  .arrow-btn{
    width:44px;height:44px;border-radius:50%;background:#fff;border:1px solid var(--line);
    display:grid;place-items:center;color:var(--ink-2);transition:color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  }
  .arrow-btn:hover{color:var(--brand-1);border-color:var(--brand-1);transform:translateY(-2px);box-shadow:var(--sh-1)}
  .arrow-btn:active{transform:translateY(0)}
  .dots{display:flex;align-items:center;gap:8px;margin-left:auto}
  .dot{width:8px;height:8px;border-radius:var(--r-pill);background:var(--line);transition:width .2s ease,background .2s ease}
  .dot.is-active{width:24px;background:var(--brand-grad)}

  /* 能力对照 */
  .compare{display:grid;gap:20px;margin-top:28px}
  @media(min-width:1024px){.compare{grid-template-columns:1fr 1fr;gap:24px}}
  .compare-col{padding:24px 24px 26px}
  .compare-col.is-pro{border:1.5px solid var(--brand-1);box-shadow:var(--sh-3)}
  .compare-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:14px;border-bottom:1px solid var(--line)}
  .compare-head .h3{margin:0}
  .check-list{margin-top:18px;display:grid;gap:12px}
  .check-item{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--ink-2);line-height:1.75}
  .check-item .tick{
    width:22px;height:22px;border-radius:50%;background:rgba(18,168,122,.12);color:var(--ok);
    display:grid;place-items:center;font-size:12px;font-weight:800;flex-shrink:0;margin-top:4px;
  }
  .check-item.is-strong .tick{background:var(--brand-grad);color:#fff}

  /* 内容卡网格 */
  .news-grid{display:grid;gap:20px;margin-top:28px}
  @media(min-width:640px){.news-grid{grid-template-columns:repeat(2,1fr)}}
  @media(min-width:1024px){.news-grid{grid-template-columns:repeat(3,1fr);gap:24px}}
  .news-card .media{aspect-ratio:16/10;border-radius:var(--r-card) var(--r-card) 0 0}
  .news-card:hover .media img{transform:scale(1.04)}

  /* FAQ */
  .faq-list{margin-top:28px}
  .faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;transition:box-shadow .2s ease}
  .faq-item + .faq-item{margin-top:12px}
  .faq-item.is-open{box-shadow:var(--sh-2)}
  .faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 22px;font-size:17px;font-weight:600;text-align:left;line-height:1.6}
  .faq-ico{
    width:30px;height:30px;border-radius:50%;background:var(--mint);color:var(--deep);
    display:grid;place-items:center;font-size:18px;line-height:1;flex-shrink:0;
    transition:transform .2s ease,background .2s ease,color .2s ease;
  }
  .faq-item.is-open .faq-ico{transform:rotate(45deg);background:var(--brand-grad);color:#fff}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .26s ease}
  .faq-item.is-open .faq-a{max-height:560px}
  .faq-a-inner{padding:16px 22px 20px;border-top:1px dashed var(--line);font-size:15px;color:var(--ink-2)}

  /* CTA 带 */
  .cta-band{position:relative;background:var(--deep);color:#fff;overflow:hidden}
  .cta-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;opacity:.16;pointer-events:none}
  .cta-glow{position:absolute;width:520px;height:520px;left:-160px;bottom:-260px;background:radial-gradient(circle,rgba(242,84,45,.55),transparent 66%);filter:blur(64px);pointer-events:none}
  .cta-inner{position:relative;z-index:1;display:grid;gap:32px;padding-block:56px}
  @media(min-width:1024px){.cta-inner{grid-template-columns:1.1fr .9fr;align-items:center;gap:48px;padding-block:76px}}
  .cta-band .h2{color:#fff}
  .cta-band p{color:rgba(255,255,255,.76)}
  .cta-btns{display:grid;gap:12px}
  @media(min-width:520px){.cta-btns{grid-template-columns:repeat(2,minmax(0,1fr))}}
  .qr-box{
    width:104px;height:104px;border-radius:var(--r-md);background:#fff;position:relative;flex-shrink:0;
  }
  .qr-box::before,.qr-box::after{content:"";position:absolute;width:16px;height:16px;border:2px solid var(--brand-1)}
  .qr-box::before{top:8px;left:8px;border-right:0;border-bottom:0;border-radius:4px 0 0 0}
  .qr-box::after{bottom:8px;right:8px;border-left:0;border-top:0;border-radius:0 0 4px 0}
  .qr-inner{position:absolute;inset:22px;border-radius:6px;background:
    linear-gradient(90deg,var(--deep) 25%,transparent 25%) 0 0/8px 8px repeat,
    linear-gradient(0deg,var(--deep) 25%,transparent 25%) 0 0/8px 8px repeat,var(--mint)}
  .cta-qr{display:flex;align-items:center;gap:16px;margin-top:22px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14)}
  .cta-qr p{font-size:13px;margin:0}

  /* 页脚 */
  .site-footer{background:var(--deep);color:#fff}
  .footer-title{font-size:15px;font-weight:700;color:rgba(255,255,255,.92);margin:0 0 14px}
  .footer-link{display:inline-block;font-size:14px;color:rgba(255,255,255,.7);transition:color .18s ease,transform .18s ease}
  .footer-link:hover{color:var(--brand-3);transform:translateX(2px)}

  @keyframes fadeUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
  .fade-up{animation:fadeUp .5s cubic-bezier(.2,.7,.3,1) both}
  @media(prefers-reduced-motion:reduce){
    *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  }