/* roulang page: index */
:root{
  --c-bg-900:#060A14;
  --c-bg-800:#0A1120;
  --c-bg-700:#101A2E;
  --c-glass:rgba(255,255,255,.055);
  --c-glass-strong:rgba(255,255,255,.09);
  --c-line:rgba(255,255,255,.10);
  --c-line-strong:rgba(255,255,255,.18);
  --c-primary:#1FB6FF;
  --c-primary-deep:#0C6BD4;
  --c-accent:#C8F45A;
  --c-accent-2:#FF5C8A;
  --c-text:#EAEFF7;
  --c-text-2:#A9B6C9;
  --c-text-3:#6C7A90;
  --c-success:#35D08A;
  --c-warn:#F5B33C;
  --c-danger:#F2604F;
  --glow-primary:0 0 0 1px rgba(31,182,255,.35),0 8px 28px rgba(31,182,255,.28);
  --glow-accent:0 0 0 1px rgba(200,244,90,.30),0 6px 22px rgba(200,244,90,.22);
  --sh-1:0 6px 18px rgba(0,0,0,.35);
  --sh-2:0 16px 40px rgba(0,0,0,.45);
  --sh-3:0 28px 64px rgba(0,0,0,.55);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:20px;
  --r-xl:26px;
  --r-pill:999px;
  --s-1:8px;--s-2:16px;--s-3:24px;--s-4:32px;--s-5:48px;--s-6:64px;--s-7:96px;
  --f-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;padding:0;background:var(--c-bg-900);color:var(--c-text);
  font-family:var(--f-sans);font-size:16px;line-height:1.95;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .22s ease,transform .22s ease}
a:hover{color:var(--c-primary)}
button{font-family:inherit;cursor:pointer}
h1,h2,h3,h4{margin:0;color:var(--c-text);letter-spacing:0}
p{margin:0 0 1.1em}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px;border-radius:6px}
::selection{background:rgba(200,244,90,.28);color:#fff}

.container-x{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.container-wide{width:100%;max-width:1440px;margin:0 auto;padding:0 24px}

/* ---------- header / nav ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1040;
  height:84px;display:flex;align-items:center;
  background:transparent;border-bottom:1px solid transparent;
  transition:height .24s ease,background .24s ease,border-color .24s ease,backdrop-filter .24s ease;
}
.site-header.is-scrolled{
  height:68px;background:var(--c-glass-strong);
  border-bottom:1px solid var(--c-line);
  backdrop-filter:blur(18px) saturate(120%);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
}
.nav-inner{width:100%;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{
  width:32px;height:32px;border-radius:9px;flex-shrink:0;
  border:1px solid rgba(31,182,255,.5);
  background:linear-gradient(140deg,rgba(31,182,255,.28),rgba(200,244,90,.12));
  box-shadow:0 0 14px rgba(31,182,255,.35);
  display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:800;color:#EAF6FF;font-variant-numeric:tabular-nums;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-name{font-size:17px;font-weight:800;color:var(--c-text)}
.brand-sub{font-size:11px;color:var(--c-text-3);letter-spacing:.06em}
.main-nav{display:flex;align-items:center;gap:28px}
.nav-item{
  position:relative;font-size:15px;color:var(--c-text-2);
  padding:6px 0;display:inline-flex;align-items:center;gap:6px;
}
.nav-item:hover{color:var(--c-text)}
.nav-item::after{
  content:"";position:absolute;left:0;right:100%;bottom:-2px;height:2px;
  background:var(--c-accent);border-radius:2px;transition:right .24s ease;
  box-shadow:0 0 10px rgba(200,244,90,.6);
}
.nav-item:hover::after{right:0}
.nav-item.active{color:var(--c-text);font-weight:600}
.nav-item.active::before{
  content:"";width:5px;height:5px;border-radius:50%;background:var(--c-accent);
  box-shadow:0 0 8px rgba(200,244,90,.85);
}
.nav-item.active::after{right:0}
.nav-actions{display:flex;align-items:center;gap:12px}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);background:var(--c-glass);
  color:var(--c-text-2);display:flex;align-items:center;justify-content:center;
  transition:all .22s ease;
}
.icon-btn:hover{color:var(--c-text);border-color:rgba(31,182,255,.45);box-shadow:var(--glow-primary)}
.icon-btn svg{width:17px;height:17px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);font-size:15px;font-weight:600;
  padding:11px 24px;border:1px solid transparent;transition:all .22s cubic-bezier(.2,.7,.3,1);
  white-space:nowrap;
}
.btn-primary-x{
  border-color:rgba(31,182,255,.55);
  background:linear-gradient(120deg,rgba(31,182,255,.30),rgba(12,107,212,.34));
  color:#F2F9FF;box-shadow:var(--glow-primary);
}
.btn-primary-x:hover{color:#fff;transform:translateY(-1px);filter:brightness(1.08);box-shadow:0 0 0 1px rgba(31,182,255,.5),0 14px 36px rgba(31,182,255,.36)}
.btn-primary-x:active{transform:translateY(1px)}
.btn-ghost{
  border-color:var(--c-line-strong);background:var(--c-glass);color:var(--c-text);
  backdrop-filter:blur(14px) saturate(120%);
}
.btn-ghost:hover{border-color:rgba(31,182,255,.55);color:#fff;transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-accent{
  border-color:rgba(200,244,90,.45);background:rgba(200,244,90,.14);
  color:#EAFBC4;box-shadow:var(--glow-accent);
}
.btn-accent:hover{color:#fff;filter:brightness(1.06);transform:translateY(-1px)}
.btn-share{
  border-color:rgba(255,92,138,.42);background:rgba(255,92,138,.10);color:#FFD7E3;
}
.btn-share:hover{color:#fff;border-color:rgba(255,92,138,.7)}
.btn-sm{padding:8px 18px;font-size:14px}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;
  color:var(--c-primary);
}
.text-link:hover{color:var(--c-accent);transform:translateX(2px)}
.text-link .arw{transition:transform .22s ease}
.text-link:hover .arw{transform:translateX(3px)}
.nav-toggle{display:none}

/* offcanvas */
.offcanvas.offcanvas-x{
  background:rgba(10,17,32,.92);backdrop-filter:blur(20px) saturate(120%);
  color:var(--c-text);width:82vw;max-width:360px;border-left:1px solid var(--c-line);
}
.offcanvas-x .offcanvas-header{border-bottom:1px solid var(--c-line);padding:20px 22px}
.offcanvas-x .btn-close{filter:invert(1) grayscale(1);opacity:.75}
.m-nav-list{padding:12px 0}
.m-nav-list li a{
  display:flex;align-items:center;gap:14px;padding:14px 22px;
  font-size:16px;color:var(--c-text-2);border-left:2px solid transparent;
}
.m-nav-list li a .no{
  font-size:12px;color:var(--c-accent);font-weight:800;font-variant-numeric:tabular-nums;
}
.m-nav-list li a.active,.m-nav-list li a:hover{
  color:var(--c-text);border-left-color:var(--c-accent);background:var(--c-glass);
}
.m-cta{padding:16px 22px 26px}

/* ---------- hero ---------- */
.hero{
  position:relative;padding:172px 0 96px;overflow:hidden;
  background-color:var(--c-bg-900);
  border-bottom:1px solid var(--c-line);
}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.5;
}
.hero-mask{position:absolute;inset:0;background:rgba(6,10,20,.62)}
.hero-glow{
  position:absolute;top:-16%;left:38%;width:640px;height:640px;pointer-events:none;
  background:radial-gradient(circle,rgba(31,182,255,.14),transparent 66%);
}
.hero-inner{position:relative;z-index:2}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  border:1px solid rgba(200,244,90,.32);background:rgba(200,244,90,.09);
  color:#DDF7A6;border-radius:var(--r-pill);padding:6px 14px;
  font-size:12.5px;letter-spacing:.02em;
}
.hero-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--c-accent-2);box-shadow:0 0 8px rgba(255,92,138,.8)}
.hero h1{
  font-size:52px;line-height:1.25;font-weight:800;margin:22px 0 18px;max-width:15em;
}
.hero h1 .hl{
  color:var(--c-primary);
  box-shadow:inset 0 -10px 0 rgba(200,244,90,.22);
}
.hero-sub{font-size:17px;color:var(--c-text-2);max-width:34em;line-height:1.9}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin:30px 0 32px}
.hero-metrics{display:flex;flex-wrap:wrap;gap:28px;padding-top:22px;border-top:1px solid var(--c-line)}
.metric{display:flex;flex-direction:column;gap:2px}
.metric b{font-size:22px;font-weight:800;color:var(--c-accent);font-variant-numeric:tabular-nums}
.metric span{font-size:13px;color:var(--c-text-3)}

.hero-card{
  border:1px solid var(--c-line-strong);border-radius:var(--r-lg);
  background:var(--c-glass-strong);overflow:hidden;
  backdrop-filter:blur(18px) saturate(120%);
  box-shadow:var(--sh-2);
  animation:floaty 7s ease-in-out infinite;
}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
@media (prefers-reduced-motion:reduce){.hero-card{animation:none}}
.hero-card .thumb{aspect-ratio:16/9;position:relative;overflow:hidden;background:var(--c-bg-700)}
.hero-card .thumb img{width:100%;height:100%;object-fit:cover;opacity:.92}
.hero-card .thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,10,20,.05),rgba(6,10,20,.72))}
.hero-card .no{
  position:absolute;top:14px;left:16px;z-index:2;
  font-size:26px;font-weight:800;color:var(--c-accent);opacity:.92;
  font-variant-numeric:tabular-nums;text-shadow:0 2px 12px rgba(6,10,20,.8);
}
.hero-card .body{padding:22px 24px 24px;background:rgba(6,10,20,.35)}
.hero-card h2{font-size:20px;font-weight:700;margin-bottom:8px}
.hero-card p{font-size:14px;color:var(--c-text-2);line-height:1.8;margin-bottom:14px}
.hero-card .row-meta{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--c-text-3)}

/* ---------- sections ---------- */
.section{padding:88px 0;position:relative}
.section.alt{background:var(--c-bg-800);border-top:1px solid rgba(255,255,255,.06);border-bottom:1px solid rgba(255,255,255,.06)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.sec-head h2{font-size:32px;font-weight:700;line-height:1.35}
.sec-head .sec-desc{margin-top:10px;font-size:15px;color:var(--c-text-2);max-width:46em}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;color:var(--c-accent);
  border:1px solid rgba(200,244,90,.28);background:rgba(200,244,90,.08);
  border-radius:var(--r-pill);padding:4px 12px;margin-bottom:14px;
}

/* collection directory */
.dir-card{
  display:flex;gap:18px;height:100%;padding:26px 24px;
  border:1px solid var(--c-line);border-radius:var(--r-lg);
  background:var(--c-glass);backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--sh-1),inset 0 1px 0 rgba(255,255,255,.08);
  transition:transform .22s cubic-bezier(.2,.7,.3,1),border-color .22s ease,box-shadow .22s ease;
}
.dir-card:hover{transform:translateY(-4px);border-color:rgba(31,182,255,.30);box-shadow:var(--sh-3),inset 0 1px 0 rgba(255,255,255,.10)}
.dir-no{
  font-size:30px;font-weight:800;line-height:1;color:var(--c-accent);opacity:.9;
  font-variant-numeric:tabular-nums;writing-mode:horizontal-tb;min-width:46px;
}
.dir-body{background:rgba(6,10,20,.35);border-radius:var(--r-md);padding:14px 16px;flex:1}
.dir-body h3{font-size:19px;font-weight:600;margin-bottom:8px}
.dir-body p{font-size:14px;color:var(--c-text-2);line-height:1.8;margin-bottom:12px}

/* featured */
.feat-main{
  border:1px solid rgba(31,182,255,.30);border-radius:var(--r-lg);
  background:var(--c-glass-strong);overflow:hidden;
  box-shadow:var(--glow-primary),var(--sh-2);height:100%;
  backdrop-filter:blur(16px) saturate(120%);
  transition:transform .22s cubic-bezier(.2,.7,.3,1);
}
.feat-main:hover{transform:translateY(-4px)}
.feat-main .thumb{aspect-ratio:16/9;overflow:hidden;background:var(--c-bg-700);position:relative}
.feat-main .thumb img{width:100%;height:100%;object-fit:cover}
.feat-main .body{padding:26px;background:rgba(6,10,20,.38)}
.feat-main h3{font-size:23px;font-weight:700;line-height:1.5;margin:12px 0 10px}
.feat-main p{font-size:15px;color:var(--c-text-2);line-height:1.9;margin-bottom:16px}
.badge-tag{
  display:inline-flex;align-items:center;gap:6px;
  border:1px solid rgba(200,244,90,.32);background:rgba(200,244,90,.10);
  color:#DDF7A6;border-radius:var(--r-pill);padding:3px 12px;font-size:12.5px;line-height:1.4;
}
.badge-hot{
  display:inline-flex;align-items:center;gap:6px;font-size:12.5px;color:#FFD7E3;
  border:1px solid rgba(255,92,138,.34);background:rgba(255,92,138,.10);
  border-radius:var(--r-pill);padding:3px 12px;
}
.badge-hot i{width:6px;height:6px;border-radius:50%;background:var(--c-accent-2);display:inline-block}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:16px;font-size:13px;color:var(--c-text-3)}

.compact-list{display:flex;flex-direction:column;gap:14px;height:100%}
.compact-item{
  display:flex;gap:14px;padding:18px 20px;border:1px solid var(--c-line);
  border-radius:var(--r-md);background:var(--c-glass);backdrop-filter:blur(14px);
  transition:all .22s ease;
}
.compact-item:hover{border-color:rgba(31,182,255,.30);transform:translateY(-3px);box-shadow:var(--sh-2)}
.compact-item .idx{
  font-size:18px;font-weight:800;color:var(--c-accent);opacity:.85;
  font-variant-numeric:tabular-nums;min-width:30px;
}
.compact-item .txt{background:rgba(6,10,20,.32);border-radius:var(--r-sm);padding:8px 12px;flex:1}
.compact-item h3{font-size:16px;font-weight:600;line-height:1.6;margin-bottom:6px}
.compact-item time{font-size:12.5px;color:var(--c-text-3)}

/* news / cms */
.news-card{
  height:100%;border:1px solid var(--c-line);border-radius:var(--r-lg);
  background:var(--c-glass);backdrop-filter:blur(14px) saturate(120%);
  box-shadow:var(--sh-1),inset 0 1px 0 rgba(255,255,255,.08);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .22s cubic-bezier(.2,.7,.3,1),border-color .22s ease,box-shadow .22s ease;
}
.news-card:hover{transform:translateY(-4px);border-color:rgba(31,182,255,.30);box-shadow:var(--sh-3)}
.news-card .thumb{aspect-ratio:4/3;overflow:hidden;background:var(--c-bg-700)}
.news-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.news-card:hover .thumb img{transform:scale(1.04)}
.news-card .body{padding:22px 24px 24px;background:rgba(6,10,20,.35);flex:1;display:flex;flex-direction:column}
.news-card h3{font-size:18px;font-weight:600;line-height:1.6;margin:12px 0 10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card .desc{font-size:14px;color:var(--c-text-2);line-height:1.85;margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card .foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px;color:var(--c-text-3)}
.empty-state{
  border:1px dashed var(--c-line-strong);border-radius:var(--r-lg);
  background:var(--c-glass);padding:52px 24px;text-align:center;
}
.empty-state .ico{
  width:52px;height:52px;margin:0 auto 16px;border-radius:var(--r-pill);
  border:1px solid var(--c-line-strong);display:flex;align-items:center;justify-content:center;
  color:var(--c-primary);
}
.empty-state p{color:var(--c-text-2);font-size:15px;margin-bottom:18px}
.skeleton{border-radius:var(--r-lg);background:var(--c-glass);height:150px;position:relative;overflow:hidden;border:1px solid var(--c-line)}
.skeleton::after{
  content:"";position:absolute;inset:0;transform:translateX(-100%);
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.07),transparent);
  animation:shimmer 1.6s infinite;
}
@keyframes shimmer{100%{transform:translateX(100%)}}

/* rail */
.rail{display:flex;gap:20px;overflow-x:auto;padding:6px 4px 20px;scroll-snap-type:x mandatory}
.rail::-webkit-scrollbar{height:8px}
.rail::-webkit-scrollbar-thumb{background:rgba(255,255,255,.14);border-radius:var(--r-pill)}
.rail-card{
  flex:0 0 calc((100% - 60px)/3.5);min-width:270px;scroll-snap-align:start;
  border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;
  background:var(--c-glass);backdrop-filter:blur(14px);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.rail-card:hover{transform:translateY(-4px);border-color:rgba(200,244,90,.34);box-shadow:var(--sh-2)}
.rail-card .thumb{aspect-ratio:4/3;background:var(--c-bg-700);overflow:hidden}
.rail-card .thumb img{width:100%;height:100%;object-fit:cover}
.rail-card .body{padding:18px 20px;background:rgba(6,10,20,.35)}
.rail-card h3{font-size:16px;font-weight:600;line-height:1.6;margin:10px 0 8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rail-card time{font-size:12.5px;color:var(--c-text-3)}

/* cta strip */
.cta-strip{
  border:1px solid var(--c-line-strong);border-radius:var(--r-xl);
  background:var(--c-glass-strong);backdrop-filter:blur(18px) saturate(120%);
  padding:30px 32px;display:flex;align-items:center;justify-content:space-between;gap:24px;
  box-shadow:var(--sh-2),inset 0 1px 0 rgba(255,255,255,.08);
}
.cta-strip p{margin:0;font-size:17px;color:var(--c-text);font-weight:600}
.cta-strip small{display:block;font-size:13px;color:var(--c-text-3);font-weight:400;margin-top:6px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* faq */
.faq-wrap{display:grid;gap:14px}
.faq-item{
  border:1px solid var(--c-line);border-radius:var(--r-md);
  background:var(--c-glass);backdrop-filter:blur(14px);overflow:hidden;
  transition:border-color .22s ease;
}
.faq-item[open]{border-color:rgba(200,244,90,.36)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  gap:16px;min-height:56px;padding:0 24px;font-size:16px;font-weight:500;color:var(--c-text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .sign{
  width:26px;height:26px;flex-shrink:0;border-radius:var(--r-pill);
  border:1px solid var(--c-line-strong);display:flex;align-items:center;justify-content:center;
  color:var(--c-accent);font-size:16px;line-height:1;
}
.faq-item[open] summary .sign{background:rgba(200,244,90,.14);border-color:rgba(200,244,90,.5)}
.faq-answer{padding:0 24px 22px;background:rgba(6,10,20,.35)}
.faq-answer p{margin:0;font-size:15px;color:var(--c-text-2);line-height:1.95}

/* stats */
.stat-band{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat-cell{
  padding:26px 24px;border:1px solid var(--c-line);border-radius:var(--r-lg);
  background:var(--c-glass);backdrop-filter:blur(14px);
}
.stat-cell b{display:block;font-size:30px;font-weight:800;color:var(--c-accent);font-variant-numeric:tabular-nums;line-height:1.2}
.stat-cell span{display:block;font-size:13.5px;color:var(--c-text-3);margin-top:6px}

/* footer */
.site-footer{background:var(--c-bg-900);border-top:1px solid var(--c-line);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px}
.footer-grid h4{font-size:15px;font-weight:700;margin-bottom:18px;color:var(--c-text)}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--c-text-3);line-height:1.9;max-width:30em}
.footer-links li{margin-bottom:12px}
.footer-links a{font-size:14px;color:var(--c-text-2);display:inline-block;transition:transform .22s ease,color .22s ease}
.footer-links a:hover{color:var(--c-primary);transform:translateX(2px)}
.footer-contact li{font-size:14px;color:var(--c-text-2);margin-bottom:12px;line-height:1.8}
.footer-contact b{color:var(--c-text);font-weight:600}
.footer-bottom{
  margin-top:52px;border-top:1px solid var(--c-line);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--c-text-3);
}

/* responsive */
@media (min-width:1400px){
  .section{padding:104px 0}
  .hero{padding:188px 0 110px}
  .hero h1{font-size:56px}
}
@media (max-width:1199.98px){
  .hero h1{font-size:46px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .stat-band{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:991.98px){
  .main-nav,.nav-actions .btn{display:none}
  .nav-toggle{display:flex}
  .hero{padding:132px 0 72px}
  .hero h1{font-size:40px;max-width:none}
  .hero-sub{font-size:16px}
  .section{padding:64px 0}
  .sec-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:32px}
  .sec-head h2{font-size:27px}
  .hero-card{margin-top:44px}
  .rail-card{flex:0 0 78%}
  .cta-strip{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
}
@media (max-width:767.98px){
  .container-x,.container-wide{padding:0 16px}
  body{font-size:15.5px}
  .hero{padding:118px 0 60px}
  .hero h1{font-size:33px}
  .hero-btns{gap:12px}
  .hero-btns .btn{width:100%}
  .hero-metrics{gap:18px}
  .metric b{font-size:19px}
  .section{padding:52px 0}
  .sec-head h2{font-size:24px}
  .feat-main h3{font-size:20px}
  .cta-strip{padding:24px 20px;border-radius:var(--r-lg)}
  .dir-card{padding:20px 18px}
  .news-card .body{padding:18px 18px 20px}
  .rail-card{flex:0 0 84%}
}
@media (max-width:575.98px){
  .hero h1{font-size:29px}
  .dir-no{font-size:24px;min-width:38px}
  .stat-band{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .faq-item summary{padding:0 18px;font-size:15px}
  .faq-answer{padding:0 18px 18px}
}

/* roulang page: article */
:root{
  --c-bg-900:#060A14;
  --c-bg-800:#0A1120;
  --c-bg-700:#101A2E;
  --c-glass:rgba(255,255,255,.055);
  --c-glass-strong:rgba(255,255,255,.09);
  --c-line:rgba(255,255,255,.10);
  --c-line-strong:rgba(255,255,255,.18);
  --c-primary:#1FB6FF;
  --c-primary-deep:#0C6BD4;
  --c-accent:#C8F45A;
  --c-accent-2:#FF5C8A;
  --c-text:#EAEFF7;
  --c-text-2:#A9B6C9;
  --c-text-3:#6C7A90;
  --c-success:#35D08A;
  --c-warn:#F5B33C;
  --c-danger:#F2604F;
  --glow-primary:0 0 0 1px rgba(31,182,255,.35),0 8px 28px rgba(31,182,255,.28);
  --glow-accent:0 0 0 1px rgba(200,244,90,.30),0 6px 22px rgba(200,244,90,.22);
  --sh-1:0 6px 18px rgba(0,0,0,.35);
  --sh-2:0 16px 40px rgba(0,0,0,.45);
  --sh-3:0 28px 64px rgba(0,0,0,.55);
  --r-sm:10px;--r-md:16px;--r-lg:20px;--r-xl:26px;--r-pill:999px;
  --s-1:8px;--s-2:16px;--s-3:24px;--s-4:32px;--s-5:48px;--s-6:64px;--s-7:96px;
  --f-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--c-bg-900);color:var(--c-text);font-family:var(--f-sans);font-size:16px;line-height:1.95;text-align:left;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease,transform .2s ease}
a:hover{color:var(--c-accent)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button,input{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px;border-radius:6px}
::selection{background:rgba(200,244,90,.28);color:#fff}
.container-x{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.sep-line{height:1px;background:var(--c-line);border:0;margin:0}

/* ============ 顶部导航 ============ */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1040;height:84px;display:flex;align-items:center;background:transparent;border-bottom:1px solid transparent;transition:height .24s ease,background .24s ease,border-color .24s ease}
.site-header.is-scrolled{height:68px;background:var(--c-glass-strong);backdrop-filter:blur(18px) saturate(120%);-webkit-backdrop-filter:blur(18px) saturate(120%);border-bottom-color:var(--c-line)}
.header-inner{display:flex;align-items:center;gap:24px;width:100%}
.brand{display:inline-flex;align-items:center;gap:12px;color:var(--c-text)}
.brand:hover{color:var(--c-text)}
.brand-mark{width:32px;height:32px;border-radius:9px;display:grid;place-items:center;font-size:13px;font-weight:800;color:var(--c-accent);border:1px solid rgba(200,244,90,.45);background:rgba(200,244,90,.08);box-shadow:0 0 18px rgba(200,244,90,.18)}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-name{font-size:17px;font-weight:800;letter-spacing:.2px}
.brand-sub{font-size:11px;color:var(--c-text-3)}
.main-nav{display:flex;align-items:center;gap:28px;margin-left:auto}
.nav-item{position:relative;font-size:15px;color:var(--c-text-2);padding:6px 0}
.nav-item:hover{color:var(--c-text)}
.nav-item.active{color:var(--c-text)}
.nav-item.active::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--c-accent),rgba(200,244,90,.12));box-shadow:0 0 12px rgba(200,244,90,.45)}
.nav-item.active::before{content:"";position:absolute;left:-11px;top:50%;transform:translateY(-50%);width:5px;height:5px;border-radius:50%;background:var(--c-accent)}
.header-actions{display:flex;align-items:center;gap:14px}
.header-cta{padding:9px 18px;border-radius:var(--r-pill);border:1px solid rgba(31,182,255,.55);background:rgba(31,182,255,.14);color:var(--c-text);font-size:14px;font-weight:600;transition:box-shadow .25s ease,transform .25s ease,background .25s ease}
.header-cta:hover{box-shadow:var(--glow-primary);transform:translateY(-1px);color:#fff;background:rgba(31,182,255,.22)}
.nav-toggle{display:none;width:42px;height:42px;border-radius:var(--r-sm);border:1px solid var(--c-line-strong);background:var(--c-glass);color:var(--c-text);align-items:center;justify-content:center;cursor:pointer}
.nav-toggle:hover{border-color:rgba(31,182,255,.5)}

/* 移动抽屉 */
.offcanvas.offcanvas-end.mobile-drawer{width:82vw;max-width:360px;background:rgba(10,17,32,.94);backdrop-filter:blur(18px) saturate(120%);border-left:1px solid var(--c-line);color:var(--c-text)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:20px 22px;border-bottom:1px solid var(--c-line)}
.drawer-close{width:38px;height:38px;border-radius:var(--r-sm);border:1px solid var(--c-line-strong);background:transparent;color:var(--c-text);cursor:pointer}
.drawer-close:hover{border-color:rgba(31,182,255,.5)}
.drawer-list{padding:16px 22px;display:flex;flex-direction:column}
.drawer-list a{display:flex;align-items:center;gap:14px;padding:15px 0;border-bottom:1px solid var(--c-line);color:var(--c-text-2);font-size:16px}
.drawer-list a:hover{color:var(--c-text);transform:translateX(2px)}
.drawer-list a .num{font-size:12px;font-weight:800;color:var(--c-accent);letter-spacing:.5px;min-width:22px}
.drawer-cta{padding:18px 22px 26px;margin-top:auto}
.drawer-cta a{display:block;text-align:center;padding:13px;border-radius:var(--r-pill);border:1px solid rgba(31,182,255,.6);background:rgba(31,182,255,.18);color:#fff;font-weight:600}

/* ============ 按钮体系 ============ */
.btn-primary-x,.btn-ghost-x,.btn-accent-x{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:var(--r-pill);font-size:15px;font-weight:600;cursor:pointer;transition:transform .22s cubic-bezier(.2,.7,.3,1),box-shadow .22s ease,background .22s ease,border-color .22s ease,filter .22s ease;border:1px solid transparent}
.btn-primary-x{color:#F2FBFF;border-color:rgba(31,182,255,.6);background:linear-gradient(180deg,rgba(31,182,255,.30),rgba(12,107,212,.26));box-shadow:var(--glow-primary)}
.btn-primary-x:hover{color:#fff;transform:translateY(-1px);filter:brightness(1.08);box-shadow:0 0 0 1px rgba(31,182,255,.5),0 14px 36px rgba(31,182,255,.34)}
.btn-primary-x:active{transform:translateY(1px)}
.btn-ghost-x{color:var(--c-text);border-color:var(--c-line-strong);background:var(--c-glass)}
.btn-ghost-x:hover{color:#fff;border-color:rgba(31,182,255,.55);background:rgba(31,182,255,.12);transform:translateY(-1px)}
.btn-accent-x{color:#12180B;border-color:rgba(200,244,90,.65);background:linear-gradient(180deg,rgba(200,244,90,.95),rgba(168,220,64,.9));box-shadow:var(--glow-accent)}
.btn-accent-x:hover{color:#12180B;transform:translateY(-1px);filter:brightness(1.06)}
.btn-accent-x:active,.btn-ghost-x:active{transform:translateY(1px)}
.btn-link-x{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-size:14px;font-weight:600}
.btn-link-x:hover{color:var(--c-accent)}
.btn-link-x .arrow{transition:transform .22s ease}
.btn-link-x:hover .arrow{transform:translateX(4px)}
.btn-primary-x[disabled],.btn-ghost-x[disabled]{opacity:.5;cursor:not-allowed;transform:none}

/* ============ 徽章 / 标签 ============ */
.badge-accent{display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:var(--r-pill);border:1px solid rgba(200,244,90,.38);background:rgba(200,244,90,.10);color:var(--c-accent);font-size:12.5px;font-weight:600;line-height:1}
.badge-primary{display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:var(--r-pill);border:1px solid rgba(31,182,255,.4);background:rgba(31,182,255,.10);color:var(--c-primary);font-size:12.5px;font-weight:600;line-height:1}
.badge-hot{display:inline-flex;align-items:center;gap:6px;height:22px;padding:0 10px;border-radius:var(--r-pill);border:1px solid rgba(255,92,138,.4);background:rgba(255,92,138,.10);color:var(--c-accent-2);font-size:12px;font-weight:600}
.badge-hot::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--c-accent-2)}

/* ============ 文章页头 ============ */
main{padding-top:84px}
.article-hero{position:relative;padding:56px 0 42px;background:linear-gradient(rgba(6,10,20,.86),rgba(6,10,20,.94)),url("/assets/images/backpic/back-2.webp") center/cover no-repeat;border-bottom:1px solid var(--c-line);overflow:hidden}
.article-hero::after{content:"";position:absolute;inset:0;background:radial-gradient(680px 300px at 18% 0%,rgba(31,182,255,.13),transparent 70%);pointer-events:none}
.article-hero .container-x{position:relative;z-index:2}
.breadcrumb-x{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13.5px;color:var(--c-text-3);margin-bottom:22px}
.breadcrumb-x a{color:var(--c-text-2)}
.breadcrumb-x a:hover{color:var(--c-primary)}
.breadcrumb-x .sep{color:rgba(255,255,255,.22)}
.breadcrumb-x .current{color:var(--c-text-3);max-width:56ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-hero h1{font-size:38px;line-height:1.3;font-weight:800;margin:18px 0 20px;max-width:20ch;word-break:break-word}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 26px;font-size:13.5px;color:var(--c-text-3);padding-top:22px;border-top:1px solid var(--c-line)}
.meta-row b{color:var(--c-text-2);font-weight:600}
.share-group{display:flex;align-items:center;gap:10px;margin-left:auto}
.share-btn{height:34px;padding:0 14px;border-radius:var(--r-pill);border:1px solid var(--c-line-strong);background:var(--c-glass);color:var(--c-text-2);font-size:13px;cursor:pointer;transition:border-color .2s ease,color .2s ease,background .2s ease}
.share-btn:hover{color:var(--c-text);border-color:rgba(31,182,255,.5);background:rgba(31,182,255,.1)}

/* ============ 阅读流布局 ============ */
.reading-wrap{padding:64px 0 80px}
.reading-grid{display:grid;grid-template-columns:minmax(0,1fr) 288px;gap:48px;align-items:start}
.entry{min-width:0}
.article-content{max-width:820px;font-size:16.5px;line-height:1.95;color:var(--c-text)}
.article-content>*+*{margin-top:1.1em}
.article-content h2{font-size:24px;line-height:1.45;font-weight:700;margin-top:40px;padding-left:14px;position:relative;color:var(--c-text)}
.article-content h2::before{content:"";position:absolute;left:0;top:.35em;bottom:.35em;width:3px;border-radius:3px;background:linear-gradient(180deg,var(--c-accent),rgba(200,244,90,.2))}
.article-content h3{font-size:19px;font-weight:600;margin-top:28px;color:var(--c-text)}
.article-content p{margin:0}
.article-content strong{color:var(--c-accent-2);font-weight:700}
.article-content a{color:var(--c-primary);border-bottom:1px solid rgba(31,182,255,.35)}
.article-content a:hover{color:var(--c-accent);border-bottom-color:rgba(200,244,90,.5)}
.article-content ul,.article-content ol{margin:1.1em 0;padding-left:0}
.article-content ul li,.article-content ol li{position:relative;line-height:1.9;padding-left:22px;margin-bottom:10px}
.article-content ul li::before{content:"";position:absolute;left:2px;top:.85em;width:7px;height:7px;border-radius:50%;background:var(--c-primary);box-shadow:0 0 10px rgba(31,182,255,.5)}
.article-content ol{counter-reset:ordered}
.article-content ol li{counter-increment:ordered}
.article-content ol li::before{content:counter(ordered,decimal-leading-zero);position:absolute;left:0;top:0;font-size:13px;font-weight:800;color:var(--c-accent);line-height:2.3}
.article-content blockquote{margin:1.4em 0;padding:18px 22px;border-left:3px solid var(--c-accent);border-radius:0 var(--r-md) var(--r-md) 0;background:var(--c-glass);border-top:1px solid var(--c-line);border-right:1px solid var(--c-line);border-bottom:1px solid var(--c-line);color:var(--c-text-2);font-size:15.5px}
.article-content blockquote p{color:var(--c-text-2)}
.article-content img{border-radius:var(--r-md);margin:14px 0;width:100%;object-fit:cover;background:var(--c-bg-700)}
.article-content figure{margin:20px 0}
.article-content figcaption{font-size:13px;color:var(--c-text-3);text-align:center;margin-top:10px}
.article-content pre,.article-content code{font-family:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace}
.article-content pre{padding:18px 20px;border-radius:var(--r-md);border:1px solid var(--c-line);background:rgba(6,10,20,.75);overflow-x:auto;font-size:14px;line-height:1.75}
.article-content table{width:100%;border-collapse:collapse;font-size:15px;margin:1.2em 0}
.article-content th,.article-content td{border:1px solid var(--c-line);padding:10px 14px;text-align:left}
.article-content th{background:var(--c-glass);color:var(--c-text-2);font-weight:600}

/* 空态 */
.empty-state{padding:64px 32px;text-align:center;border-radius:var(--r-lg);border:1px solid var(--c-line);background:var(--c-bg-800)}
.empty-icon{width:56px;height:56px;margin:0 auto 18px;border-radius:var(--r-md);border:1px dashed rgba(31,182,255,.5);display:grid;place-items:center;color:var(--c-primary);font-size:22px}
.empty-state p{color:var(--c-text-2);margin-bottom:20px;font-size:16px}

/* 标签与操作条 */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin:44px 0 0;padding-top:26px;border-top:1px solid var(--c-line)}
.tag-row a{display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:var(--r-pill);border:1px solid var(--c-line-strong);background:var(--c-glass);color:var(--c-text-2);font-size:13px}
.tag-row a:hover{color:var(--c-accent);border-color:rgba(200,244,90,.45);background:rgba(200,244,90,.08)}
.action-bar{margin-top:24px;padding:20px 24px;border-radius:var(--r-lg);border:1px solid var(--c-line);background:var(--c-glass);display:flex;flex-wrap:wrap;align-items:center;gap:16px}
.action-bar p{flex:1 1 260px;font-size:15px;color:var(--c-text-2)}
.action-bar .btns{display:flex;gap:12px;flex-wrap:wrap}

/* 相邻合集 */
.adjacent{margin-top:48px;display:grid;grid-template-columns:1fr 1fr;gap:20px}
.adj-card{display:block;padding:22px 24px;border-radius:var(--r-lg);border:1px solid var(--c-line);background:var(--c-bg-800);transition:transform .22s cubic-bezier(.2,.7,.3,1),border-color .22s ease,box-shadow .22s ease}
.adj-card:hover{transform:translateY(-4px);border-color:rgba(31,182,255,.4);box-shadow:var(--sh-2);color:var(--c-text)}
.adj-card .label{font-size:12.5px;color:var(--c-text-3);display:block;margin-bottom:8px}
.adj-card h3{font-size:18px;font-weight:600;color:var(--c-text);margin-bottom:6px}
.adj-card p{font-size:13.5px;color:var(--c-text-3);line-height:1.7}

/* 相关推荐 */
.related{margin-top:72px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:24px}
.section-head h2{font-size:26px;font-weight:700;line-height:1.4}
.section-head p{font-size:14px;color:var(--c-text-3);margin-top:6px}
.related-track{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(280px,1fr);gap:20px;overflow-x:auto;padding-bottom:8px;scrollbar-width:thin}
.related-track::-webkit-scrollbar{height:6px}
.related-track::-webkit-scrollbar-thumb{background:rgba(255,255,255,.14);border-radius:999px}
.rel-card{display:block;border-radius:var(--r-lg);border:1px solid var(--c-line);background:var(--c-bg-800);overflow:hidden;transition:transform .22s cubic-bezier(.2,.7,.3,1),border-color .22s ease,box-shadow .22s ease}
.rel-card:hover{transform:translateY(-4px);border-color:rgba(31,182,255,.4);box-shadow:var(--sh-2);color:var(--c-text)}
.rel-thumb{aspect-ratio:16/9;background:var(--c-bg-700);overflow:hidden}
.rel-thumb img{width:100%;height:100%;object-fit:cover}
.rel-body{padding:20px 22px 24px}
.rel-body h3{font-size:18px;font-weight:600;line-height:1.6;margin:12px 0 8px;color:var(--c-text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-body time{font-size:13px;color:var(--c-text-3)}

/* FAQ */
.faq-block{margin-top:72px}
.accordion-x .accordion-item{background:var(--c-glass);border:1px solid var(--c-line);border-radius:var(--r-md);margin-bottom:12px;overflow:hidden;backdrop-filter:blur(14px) saturate(120%);-webkit-backdrop-filter:blur(14px) saturate(120%)}
.accordion-x .accordion-button{width:100%;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 22px;background:transparent;border:0;color:var(--c-text);font-size:15.5px;font-weight:500;text-align:left;cursor:pointer}
.accordion-x .accordion-button:hover{color:var(--c-accent)}
.accordion-x .accordion-button::after{content:"+";font-size:20px;font-weight:400;color:var(--c-accent);line-height:1;flex:0 0 auto}
.accordion-x .accordion-button:not(.collapsed)::after{content:"–"}
.accordion-x .accordion-button:not(.collapsed){color:var(--c-text);box-shadow:none}
.accordion-x .accordion-button:focus{box-shadow:none;outline:2px solid var(--c-primary);outline-offset:-2px}
.accordion-x .accordion-body{padding:0 22px 22px;font-size:15px;color:var(--c-text-2);line-height:1.9}
.accordion-x .accordion-item:has(.accordion-button:not(.collapsed)){border-color:rgba(200,244,90,.42)}

/* 侧栏 */
.side-col{position:sticky;top:100px;display:flex;flex-direction:column;gap:20px}
.side-card{padding:22px;border-radius:var(--r-lg);border:1px solid var(--c-line);background:var(--c-bg-800);box-shadow:var(--sh-1)}
.side-card h4{font-size:15px;font-weight:700;margin-bottom:14px;color:var(--c-text)}
.side-nav{display:flex;flex-direction:column;gap:2px}
.side-nav a{display:flex;align-items:center;gap:10px;padding:10px 0;font-size:14px;color:var(--c-text-2);border-bottom:1px solid var(--c-line)}
.side-nav a:last-child{border-bottom:0}
.side-nav a .idx{font-size:12px;font-weight:800;color:var(--c-accent);min-width:20px}
.side-nav a:hover{color:var(--c-text);transform:translateX(2px)}
.side-list li{position:relative;padding-left:16px;margin-bottom:14px}
.side-list li::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:2px;border-radius:2px;background:rgba(255,255,255,.18);transition:background .22s ease}
.side-list li:hover::before{background:var(--c-primary);box-shadow:0 0 10px rgba(31,182,255,.5)}
.side-list a{font-size:14px;color:var(--c-text-2);line-height:1.7}
.side-list a:hover{color:var(--c-primary)}
.side-list time{display:block;font-size:12.5px;color:var(--c-text-3);margin-top:4px}
.side-cta{background:linear-gradient(180deg,rgba(31,182,255,.16),rgba(10,17,32,.9));border-color:rgba(31,182,255,.32)}
.side-cta p{font-size:13.5px;color:var(--c-text-2);line-height:1.75;margin-bottom:16px}
.side-cta .btn-primary-x{width:100%;padding:11px 18px;font-size:14px}

/* 页脚 */
.site-footer{background:var(--c-bg-900);border-top:1px solid var(--c-line);padding:64px 0 0;margin-top:80px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:48px}
.footer-brand p{margin-top:18px;font-size:14px;color:var(--c-text-3);line-height:1.85;max-width:36ch}
.site-footer h4{font-size:15px;font-weight:700;margin-bottom:18px;color:var(--c-text)}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{font-size:14px;color:var(--c-text-2);display:inline-block}
.footer-links a:hover{color:var(--c-primary);transform:translateX(2px)}
.footer-contact{display:flex;flex-direction:column;gap:12px;font-size:14px;color:var(--c-text-2)}
.footer-contact b{color:var(--c-text-3);font-weight:600}
.footer-bottom{border-top:1px solid var(--c-line);padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:var(--c-text-3)}

/* 反馈小提示 */
.toast-x{position:fixed;left:50%;bottom:34px;transform:translate(-50%,20px);padding:12px 22px;border-radius:var(--r-pill);border:1px solid rgba(200,244,90,.45);background:rgba(10,17,32,.95);color:var(--c-accent);font-size:14px;opacity:0;pointer-events:none;transition:opacity .25s ease,transform .25s ease;z-index:1200}
.toast-x.show{opacity:1;transform:translate(-50%,0)}

/* ============ 响应式 ============ */
@media (min-width:1400px){
  .article-content{font-size:17px}
  .reading-grid{gap:56px}
}
@media (max-width:1199px){
  .article-hero h1{font-size:34px}
  .reading-grid{grid-template-columns:minmax(0,1fr) 260px;gap:36px}
}
@media (max-width:991px){
  .main-nav,.header-cta{display:none}
  .nav-toggle{display:inline-flex}
  .reading-grid{grid-template-columns:minmax(0,1fr)}
  .side-col{position:static;order:2}
  .article-content{max-width:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container-x{padding:0 18px}
  main{padding-top:72px}
  .site-header{height:72px}
  .article-hero{padding:38px 0 32px}
  .article-hero h1{font-size:27px;margin:14px 0 16px}
  .meta-row{gap:8px 18px;font-size:13px}
  .share-group{margin-left:0;width:100%}
  .reading-wrap{padding:44px 0 56px}
  .article-content{font-size:15.5px}
  .article-content h2{font-size:21px;margin-top:32px}
  .adjacent{grid-template-columns:1fr}
  .section-head h2{font-size:22px}
  .related-track{grid-auto-columns:minmax(240px,82%)}
  .action-bar{padding:18px}
  .action-bar .btns{width:100%}
  .action-bar .btns .btn-primary-x,.action-bar .btns .btn-accent-x{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column}
  .article-hero h1{max-width:none}
}
@media (max-width:575px){
  .article-hero h1{font-size:24px}
  .article-content{font-size:15px}
  .btn-primary-x,.btn-ghost-x,.btn-accent-x{padding:11px 18px;font-size:14px}
  .side-card{padding:18px}
  .rel-body{padding:18px}
  .badge-accent,.badge-primary{font-size:12px}
}

/* roulang page: category1 */
:root{
  --c-bg-900:#060A14;
  --c-bg-800:#0A1120;
  --c-bg-700:#101A2E;
  --c-glass:rgba(255,255,255,.055);
  --c-glass-strong:rgba(255,255,255,.09);
  --c-line:rgba(255,255,255,.10);
  --c-line-strong:rgba(255,255,255,.18);
  --c-primary:#1FB6FF;
  --c-primary-deep:#0C6BD4;
  --c-accent:#C8F45A;
  --c-accent-2:#FF5C8A;
  --c-text:#EAEFF7;
  --c-text-2:#A9B6C9;
  --c-text-3:#6C7A90;
  --c-success:#35D08A;
  --c-warn:#F5B33C;
  --c-danger:#F2604F;
  --glow-primary:0 0 0 1px rgba(31,182,255,.35),0 8px 28px rgba(31,182,255,.28);
  --glow-accent:0 0 0 1px rgba(200,244,90,.30),0 6px 22px rgba(200,244,90,.22);
  --sh-1:0 6px 18px rgba(0,0,0,.35);
  --sh-2:0 16px 40px rgba(0,0,0,.45);
  --sh-3:0 28px 64px rgba(0,0,0,.55);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:20px;
  --r-xl:26px;
  --r-pill:999px;
  --s-1:8px;
  --s-2:16px;
  --s-3:24px;
  --s-4:32px;
  --s-5:48px;
  --s-6:64px;
  --s-7:96px;
  --f-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg-900);
  color:var(--c-text);
  font-family:var(--f-sans);
  font-size:16px;
  line-height:1.95;
  text-align:left;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease,transform .2s ease;}
a:hover{color:var(--c-accent);}
h1,h2,h3,h4{color:var(--c-text);margin:0 0 12px;line-height:1.35;font-weight:700;}
h1{font-size:46px;font-weight:800;line-height:1.25;}
h2{font-size:32px;}
h3{font-size:20px;font-weight:600;line-height:1.5;}
p{margin:0 0 1.1em;color:var(--c-text-2);}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
a:focus-visible,button:focus-visible,input:focus-visible,.accordion-button:focus-visible{
  outline:2px solid var(--c-primary);
  outline-offset:2px;
  border-radius:6px;
}

.container-x{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
.container-wide{width:100%;max-width:1440px;margin:0 auto;padding:0 24px;}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1040;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .24s ease,height .24s ease,border-color .24s ease,backdrop-filter .24s ease;
}
.site-header .header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:84px;
  transition:height .24s ease;
}
.site-header.is-scrolled{
  background:var(--c-glass-strong);
  border-bottom:1px solid var(--c-line);
  backdrop-filter:blur(18px) saturate(120%);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
}
.site-header.is-scrolled .header-inner{height:68px;}

.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
  width:32px;height:32px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(31,182,255,.55);
  border-radius:var(--r-sm);
  background:rgba(31,182,255,.10);
  box-shadow:0 0 0 1px rgba(31,182,255,.18),0 6px 18px rgba(31,182,255,.20);
  color:var(--c-accent);
  font-size:13px;
  font-weight:800;
  letter-spacing:.5px;
  font-variant-numeric:tabular-nums;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-name{font-size:17px;font-weight:700;color:var(--c-text);}
.brand-sub{font-size:11px;color:var(--c-text-3);letter-spacing:.4px;}

.main-nav{display:flex;align-items:center;gap:28px;}
.nav-item{
  position:relative;
  font-size:15px;
  color:var(--c-text-2);
  padding:6px 0;
  transition:color .2s ease;
}
.nav-item::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-4px;
  height:2px;
  border-radius:2px;
  background:transparent;
  transition:background .2s ease,box-shadow .2s ease;
}
.nav-item:hover{color:var(--c-text);}
.nav-item.active{color:var(--c-text);}
.nav-item.active::after{
  background:var(--c-accent);
  box-shadow:0 0 12px rgba(200,244,90,.55);
}
.nav-item.active::before{
  content:"";
  position:absolute;
  top:-2px;left:50%;
  width:5px;height:5px;
  margin-left:-2.5px;
  border-radius:50%;
  background:var(--c-accent);
}

.header-actions{display:flex;align-items:center;gap:14px;}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border:1px solid var(--c-line-strong);
  background:var(--c-glass);
  border-radius:var(--r-sm);
  padding:11px 10px;
  flex-direction:column;
  justify-content:space-between;
  cursor:pointer;
  transition:border-color .2s ease,background .2s ease;
}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--c-text);}
.nav-toggle:hover{border-color:rgba(31,182,255,.5);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-size:15px;
  font-weight:600;
  line-height:1;
  padding:14px 26px;
  border-radius:var(--r-pill);
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .22s cubic-bezier(.2,.7,.3,1),box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease,filter .22s ease;
  white-space:nowrap;
}
.btn-sm{padding:11px 20px;font-size:14px;}
.btn-glow{
  color:#F2FAFF;
  border-color:rgba(31,182,255,.65);
  background:linear-gradient(180deg,rgba(31,182,255,.26),rgba(12,107,212,.30));
  box-shadow:var(--glow-primary);
}
.btn-glow:hover{
  color:#FFFFFF;
  transform:translateY(-1px);
  filter:brightness(1.08);
  box-shadow:0 0 0 1px rgba(31,182,255,.45),0 12px 34px rgba(31,182,255,.34);
}
.btn-glow:active{transform:translateY(1px);filter:brightness(.98);}
.btn-glass{
  color:var(--c-text);
  background:var(--c-glass);
  border-color:var(--c-line-strong);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
}
.btn-glass:hover{color:var(--c-text);border-color:rgba(31,182,255,.6);transform:translateY(-1px);}
.btn-accent{
  color:#0A1120;
  background:linear-gradient(180deg,#D8FF7A,#B6E63F);
  border-color:rgba(200,244,90,.7);
  box-shadow:var(--glow-accent);
}
.btn-accent:hover{color:#08101C;transform:translateY(-1px);filter:brightness(1.05);}
.btn-magenta{
  color:#FFD9E4;
  background:rgba(255,92,138,.10);
  border-color:rgba(255,92,138,.55);
}
.btn-magenta:hover{color:#FFFFFF;border-color:rgba(255,92,138,.9);transform:translateY(-1px);}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}

.link-more{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--c-primary);
}
.link-more::after{content:"→";transition:transform .22s ease;}
.link-more:hover{color:var(--c-accent);}
.link-more:hover::after{transform:translateX(2px);}

/* ============ 徽章 ============ */
.badge-lime{
  display:inline-flex;align-items:center;gap:6px;
  height:22px;
  padding:0 10px;
  border-radius:var(--r-pill);
  border:1px solid rgba(200,244,90,.42);
  background:rgba(200,244,90,.10);
  color:var(--c-accent);
  font-size:12px;
  line-height:1.4;
  font-weight:600;
}
.badge-plain{
  display:inline-flex;align-items:center;gap:6px;
  height:22px;padding:0 10px;
  border-radius:var(--r-pill);
  border:1px solid var(--c-line);
  background:var(--c-glass);
  color:var(--c-text-2);
  font-size:12px;font-weight:500;
}
.dot-latest{width:6px;height:6px;border-radius:50%;background:var(--c-accent-2);box-shadow:0 0 8px rgba(255,92,138,.7);}
.dot-hot{width:6px;height:6px;border-radius:50%;background:var(--c-accent);box-shadow:0 0 8px rgba(200,244,90,.7);}

/* ============ 页头区 ============ */
.page-head{
  position:relative;
  margin-top:0;
  padding:150px 0 64px;
  background-color:var(--c-bg-900);
  background-image:linear-gradient(180deg,rgba(6,10,20,.72),rgba(6,10,20,.90)),url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center 30%;
  border-bottom:1px solid var(--c-line);
  overflow:hidden;
}
.page-head::after{
  content:"";
  position:absolute;
  inset:0;
  background:radial-gradient(560px 280px at 18% 20%,rgba(31,182,255,.14),transparent 70%);
  pointer-events:none;
}
.page-head .container-x{position:relative;z-index:2;}
.breadcrumb-line{
  font-size:13px;
  color:var(--c-text-3);
  margin-bottom:22px;
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
}
.breadcrumb-line a{color:var(--c-text-3);}
.breadcrumb-line a:hover{color:var(--c-primary);}
.breadcrumb-line span.sep{color:rgba(255,255,255,.22);}
.breadcrumb-line .current{color:var(--c-text-2);}

.head-grid{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:40px;align-items:end;}
.cat-num{
  display:block;
  font-size:64px;
  font-weight:800;
  line-height:1;
  color:rgba(200,244,90,.30);
  font-variant-numeric:tabular-nums;
  margin-bottom:14px;
}
.page-head h1{max-width:860px;margin-bottom:16px;}
.page-head .lead{font-size:17px;color:var(--c-text-2);max-width:760px;margin:0 0 22px;}
.head-meta{display:flex;flex-wrap:wrap;gap:10px;}

/* ============ 通用板块 ============ */
.section{padding:80px 0;}
.section-alt{
  padding:80px 0;
  background:var(--c-bg-800);
  border-top:1px solid rgba(255,255,255,.06);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.section-head{margin-bottom:38px;max-width:780px;}
.section-head .eyebrow{
  display:inline-block;
  font-size:13px;
  color:var(--c-accent);
  letter-spacing:.6px;
  margin-bottom:10px;
  font-weight:600;
}
.section-head h2{margin-bottom:10px;}
.section-head p{margin:0;font-size:16px;color:var(--c-text-2);}
.section-head-flex{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;
  margin-bottom:38px;
}
.section-head-flex .section-head{margin-bottom:0;}

/* ============ 左侧索引 + 右侧卡片 ============ */
.cat-layout{}
.index-panel{
  position:sticky;
  top:104px;
  padding:24px;
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  background:var(--c-glass);
  backdrop-filter:blur(16px) saturate(120%);
  -webkit-backdrop-filter:blur(16px) saturate(120%);
  box-shadow:var(--sh-1);
}
.index-title{
  font-size:15px;
  font-weight:600;
  color:var(--c-text);
  margin-bottom:16px;
  padding-bottom:14px;
  border-bottom:1px solid var(--c-line);
}
.index-list li+li{margin-top:4px;}
.index-list a{
  display:flex;align-items:center;gap:10px;
  padding:9px 8px;
  border-radius:var(--r-sm);
  font-size:14px;
  color:var(--c-text-2);
  border-left:2px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease,padding-left .2s ease;
}
.index-list a .num{
  font-size:12px;
  font-weight:800;
  color:rgba(200,244,90,.65);
  font-variant-numeric:tabular-nums;
}
.index-list a:hover{
  color:var(--c-text);
  background:rgba(255,255,255,.05);
  border-left-color:var(--c-primary);
  padding-left:12px;
}
.index-note{
  margin-top:18px;
  padding-top:16px;
  border-top:1px solid var(--c-line);
  font-size:13px;
  color:var(--c-text-3);
  line-height:1.8;
}

/* ============ 条目卡 ============ */
.entry-lg{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:0;
  border:1px solid rgba(31,182,255,.30);
  border-radius:var(--r-lg);
  background:var(--c-glass);
  backdrop-filter:blur(18px) saturate(120%);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),var(--sh-2);
  overflow:hidden;
  margin-bottom:24px;
  transition:transform .22s cubic-bezier(.2,.7,.3,1),box-shadow .22s ease,border-color .22s ease;
}
.entry-lg:hover{transform:translateY(-4px);box-shadow:inset 0 1px 0 rgba(255,255,255,.08),var(--sh-3);border-color:rgba(31,182,255,.5);}
.entry-lg .media{position:relative;min-height:280px;background:var(--c-bg-700);}
.entry-lg .media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/9;}
.entry-lg .body{padding:28px;display:flex;flex-direction:column;gap:12px;}
.entry-lg h3{font-size:22px;margin:0;}
.entry-lg .excerpt{font-size:15px;color:var(--c-text-2);margin:0;}
.entry-meta{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--c-text-3);margin-top:auto;
}

.entry-card{
  height:100%;
  display:flex;flex-direction:column;
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  background:var(--c-glass);
  backdrop-filter:blur(16px) saturate(120%);
  -webkit-backdrop-filter:blur(16px) saturate(120%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),var(--sh-2);
  overflow:hidden;
  transition:transform .22s cubic-bezier(.2,.7,.3,1),box-shadow .22s ease,border-color .22s ease;
}
.entry-card:hover{transform:translateY(-4px);box-shadow:inset 0 1px 0 rgba(255,255,255,.08),var(--sh-3);border-color:rgba(31,182,255,.45);}
.entry-card .thumb{position:relative;background:var(--c-bg-700);}
.entry-card .thumb img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.entry-card .thumb .num-tag{
  position:absolute;top:12px;left:14px;
  font-size:20px;font-weight:800;
  color:rgba(200,244,90,.85);
  font-variant-numeric:tabular-nums;
  text-shadow:0 2px 10px rgba(0,0,0,.6);
}
.entry-card .body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.entry-card h3{font-size:19px;margin:0;}
.entry-card .excerpt{font-size:14px;color:var(--c-text-2);margin:0;line-height:1.8;}
.entry-card .foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--c-text-3);
}
.entry-card .foot .link-more{font-size:13px;}

/* ============ 数据条 ============ */
.stat-strip{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
}
.stat-item{
  padding:26px 24px;
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  background:var(--c-glass);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),var(--sh-1);
}
.stat-item .num{
  font-size:34px;
  font-weight:800;
  color:var(--c-accent);
  line-height:1.2;
  font-variant-numeric:tabular-nums;
  display:block;
  margin-bottom:6px;
}
.stat-item .label{font-size:14px;color:var(--c-text-2);margin:0;}

/* ============ 场景清单 ============ */
.scene-card{
  height:100%;
  padding:26px;
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  background:var(--c-glass);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),var(--sh-1);
  transition:transform .22s cubic-bezier(.2,.7,.3,1),border-color .22s ease,box-shadow .22s ease;
}
.scene-card:hover{transform:translateY(-4px);border-color:rgba(31,182,255,.42);box-shadow:inset 0 1px 0 rgba(255,255,255,.08),var(--sh-2);}
.scene-card .idx{
  font-size:13px;font-weight:800;color:rgba(200,244,90,.7);
  font-variant-numeric:tabular-nums;display:block;margin-bottom:12px;
}
.scene-card h3{font-size:19px;margin-bottom:10px;}
.scene-card p{font-size:14px;margin:0 0 14px;line-height:1.85;}
.scene-list li{
  position:relative;padding-left:16px;font-size:14px;color:var(--c-text-2);line-height:1.9;
}
.scene-list li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;
  background:var(--c-primary);box-shadow:0 0 8px rgba(31,182,255,.6);
}

/* ============ 流程 ============ */
.flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;counter-reset:flow;}
.flow-step{
  position:relative;
  padding:26px 24px 24px;
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  background:var(--c-bg-700);
}
.flow-step .step-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:var(--r-sm);
  border:1px solid rgba(31,182,255,.45);
  background:rgba(31,182,255,.10);
  color:var(--c-primary);
  font-size:13px;font-weight:800;
  font-variant-numeric:tabular-nums;
  margin-bottom:16px;
}
.flow-step h3{font-size:18px;margin-bottom:8px;}
.flow-step p{font-size:14px;margin:0;line-height:1.85;}

/* ============ FAQ ============ */
.faq-acc .accordion-item{
  background:var(--c-glass);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  margin-bottom:12px;
  overflow:hidden;
  backdrop-filter:blur(16px) saturate(120%);
  -webkit-backdrop-filter:blur(16px) saturate(120%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.faq-acc .accordion-item:has(.accordion-button:not(.collapsed)){
  border-color:rgba(200,244,90,.42);
}
.faq-acc .accordion-button{
  background:transparent;
  color:var(--c-text);
  font-size:16px;
  font-weight:500;
  min-height:56px;
  padding:14px 56px 14px 22px;
  box-shadow:none;
  border:0;
  line-height:1.6;
}
.faq-acc .accordion-button:not(.collapsed){color:var(--c-accent);background:transparent;}
.faq-acc .accordion-button::after{
  content:"+";
  background-image:none;
  width:auto;height:auto;
  font-size:22px;font-weight:400;
  color:var(--c-accent);
  line-height:1;
  transform:none;
  position:absolute;right:22px;top:50%;margin-top:-13px;
}
.faq-acc .accordion-button:not(.collapsed)::after{content:"–";transform:none;}
.faq-acc .accordion-button:focus{box-shadow:none;border:0;outline:0;}
.faq-acc .accordion-body{
  padding:0 22px 22px;
  font-size:15px;
  color:var(--c-text-2);
  line-height:1.9;
}

/* ============ CTA 条 ============ */
.cta-bar{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  padding:32px 34px;
  border:1px solid var(--c-line);
  border-radius:var(--r-xl);
  background:var(--c-glass);
  backdrop-filter:blur(18px) saturate(120%);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),var(--sh-2);
}
.cta-bar .cta-text{max-width:620px;}
.cta-bar strong{display:block;font-size:20px;color:var(--c-text);font-weight:700;margin-bottom:6px;}
.cta-bar p{margin:0;font-size:14px;color:var(--c-text-2);}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ============ 移动端抽屉 ============ */
.mobile-drawer{
  width:82vw !important;
  background:rgba(8,13,26,.94) !important;
  border-left:1px solid var(--c-line) !important;
  backdrop-filter:blur(20px) saturate(120%);
  -webkit-backdrop-filter:blur(20px) saturate(120%);
  color:var(--c-text);
  display:flex;flex-direction:column;
}
.mobile-drawer .offcanvas-header{
  border-bottom:1px solid var(--c-line);
  padding:18px 20px;
}
.drawer-title{font-size:15px;font-weight:600;color:var(--c-text-2);}
.drawer-close{
  width:36px;height:36px;border-radius:var(--r-sm);
  border:1px solid var(--c-line-strong);
  background:var(--c-glass);
  color:var(--c-text);
  font-size:20px;line-height:1;
  cursor:pointer;
  transition:border-color .2s ease,color .2s ease;
}
.drawer-close:hover{border-color:rgba(31,182,255,.6);color:var(--c-primary);}
.mobile-drawer .offcanvas-body{padding:14px 14px 20px;flex:1;}
.drawer-link{
  display:flex;align-items:center;gap:14px;
  padding:15px 14px;
  border-radius:var(--r-sm);
  color:var(--c-text-2);
  font-size:16px;
  border-left:2px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease,padding-left .2s ease;
}
.drawer-link .num{
  font-size:12px;font-weight:800;color:rgba(200,244,90,.6);
  font-variant-numeric:tabular-nums;
}
.drawer-link:hover,.drawer-link.active{
  background:rgba(255,255,255,.06);
  color:var(--c-text);
  border-left-color:var(--c-accent);
  padding-left:18px;
}
.drawer-foot{padding:18px 20px 26px;border-top:1px solid var(--c-line);}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--c-bg-900);
  border-top:1px solid var(--c-line);
  padding:64px 0 26px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:40px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--c-text-3);line-height:1.9;margin:0;max-width:400px;}
.site-footer h4{
  font-size:15px;color:var(--c-text);margin-bottom:16px;font-weight:600;
}
.footer-links li+li{margin-top:10px;}
.footer-links a{
  font-size:14px;color:var(--c-text-3);display:inline-block;
  transition:color .2s ease,transform .2s ease;
}
.footer-links a:hover{color:var(--c-primary);transform:translateX(2px);}
.footer-contact li{font-size:14px;color:var(--c-text-3);line-height:1.9;}
.footer-contact li+li{margin-top:8px;}
.footer-contact b{color:var(--c-text-2);font-weight:600;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding-top:22px;
  border-top:1px solid var(--c-line);
  font-size:13px;color:var(--c-text-3);
}

/* ============ 响应式 ============ */
@media (max-width:1399px){
  h1{font-size:44px;}
}
@media (max-width:1199px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:991px){
  .main-nav{display:none;}
  .nav-toggle{display:flex;}
  .header-actions .btn-glow{display:none;}
  .site-header .header-inner{height:72px;}
  h1{font-size:34px;}
  h2{font-size:26px;}
  .page-head{padding:118px 0 52px;}
  .cat-num{font-size:48px;}
  .head-grid{grid-template-columns:minmax(0,1fr);gap:24px;}
  .section,.section-alt{padding:56px 0;}
  .entry-lg{grid-template-columns:minmax(0,1fr);}
  .entry-lg .media{min-height:210px;}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr));}
  .index-panel{position:static;margin-bottom:26px;}
  .index-list{display:flex;gap:10px;overflow-x:auto;padding-bottom:6px;}
  .index-list li+li{margin-top:0;}
  .index-list a{
    white-space:nowrap;
    border:1px solid var(--c-line);
    border-left:1px solid var(--c-line);
    border-radius:var(--r-pill);
    padding:8px 16px;
  }
  .index-list a:hover{padding-left:16px;border-color:rgba(31,182,255,.5);}
  .index-note{display:none;}
}
@media (max-width:767px){
  .container-x,.container-wide{padding:0 16px;}
  body{font-size:15px;}
  h1{font-size:27px;}
  h2{font-size:23px;}
  h3{font-size:18px;}
  .entry-lg h3{font-size:20px;}
  .page-head .lead{font-size:15px;}
  .cta-bar{padding:24px 20px;flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
  .section-head-flex{align-items:flex-start;}
}
@media (max-width:575px){
  .cat-num{font-size:38px;}
  .stat-strip{grid-template-columns:minmax(0,1fr);}
  .flow{grid-template-columns:minmax(0,1fr);}
  .entry-card .body{padding:18px;}
  .entry-lg .body{padding:20px;}
  .btn-glow{box-shadow:0 0 0 1px rgba(31,182,255,.30),0 6px 18px rgba(31,182,255,.20);}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:26px;}
  .footer-brand p{max-width:none;}
}

/* roulang page: category2 */
:root{
  --c-bg-900:#060A14;
  --c-bg-800:#0A1120;
  --c-bg-700:#101A2E;
  --c-glass:rgba(255,255,255,.055);
  --c-glass-strong:rgba(255,255,255,.09);
  --c-line:rgba(255,255,255,.10);
  --c-line-strong:rgba(255,255,255,.18);
  --c-primary:#1FB6FF;
  --c-primary-deep:#0C6BD4;
  --c-accent:#C8F45A;
  --c-accent-2:#FF5C8A;
  --c-text:#EAEFF7;
  --c-text-2:#A9B6C9;
  --c-text-3:#6C7A90;
  --c-success:#35D08A;
  --c-warn:#F5B33C;
  --c-danger:#F2604F;
  --glow-primary:0 0 0 1px rgba(31,182,255,.35), 0 8px 28px rgba(31,182,255,.28);
  --glow-accent:0 0 0 1px rgba(200,244,90,.30), 0 6px 22px rgba(200,244,90,.22);
  --sh-1:0 6px 18px rgba(0,0,0,.35);
  --sh-2:0 16px 40px rgba(0,0,0,.45);
  --sh-3:0 28px 64px rgba(0,0,0,.55);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:20px;
  --r-xl:26px;
  --r-pill:999px;
  --s-1:8px; --s-2:16px; --s-3:24px; --s-4:32px; --s-5:48px; --s-6:64px; --s-7:96px;
  --f-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg-900);
  color:var(--c-text);
  font-family:var(--f-sans);
  font-size:16px;
  line-height:1.95;
  text-align:left;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .22s ease,transform .22s ease;}
a:hover{color:#7CD4FF;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:700;color:var(--c-text);}
p{margin:0 0 1.1em;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px;border-radius:4px;}

.container-x{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
.container-wide{width:100%;max-width:1440px;margin:0 auto;padding:0 24px;}

/* ============ 按钮 ============ */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;cursor:pointer;
  transition:transform .22s cubic-bezier(.2,.7,.3,1),box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
}
.btn-primary-x{
  color:#04121F;
  background:linear-gradient(135deg,#39C4FF 0%,var(--c-primary-deep) 100%);
  border-color:rgba(31,182,255,.55);
  box-shadow:var(--glow-primary);
}
.btn-primary-x:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(31,182,255,.5),0 14px 34px rgba(31,182,255,.38);color:#03101B;}
.btn-primary-x:active{transform:translateY(1px);}
.btn-ghost{
  color:var(--c-text);
  background:var(--c-glass);
  border-color:var(--c-line-strong);
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
}
.btn-ghost:hover{border-color:rgba(31,182,255,.55);color:var(--c-text);transform:translateY(-1px);}
.btn-accent{
  color:#132105;background:var(--c-accent);
  border-color:rgba(200,244,90,.6);
  box-shadow:var(--glow-accent);
}
.btn-accent:hover{color:#132105;transform:translateY(-1px);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-share{
  color:var(--c-accent-2);background:transparent;
  border-color:rgba(255,92,138,.5);
}
.btn-share:hover{color:var(--c-accent-2);background:rgba(255,92,138,.10);}
.link-x{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary);
}
.link-x::after{content:"→";transition:transform .22s ease;}
.link-x:hover{transform:translateX(2px);}
.link-x:hover::after{transform:translateX(3px);}

/* ============ 徽章 / 标签 ============ */
.badge-x{
  display:inline-flex;align-items:center;gap:6px;
  height:22px;padding:0 10px;border-radius:var(--r-pill);
  font-size:12px;line-height:1;font-weight:600;letter-spacing:.02em;
  color:var(--c-accent);
  background:rgba(200,244,90,.10);
  border:1px solid rgba(200,244,90,.38);
  white-space:nowrap;
}
.badge-x.is-primary{color:var(--c-primary);background:rgba(31,182,255,.10);border-color:rgba(31,182,255,.38);}
.badge-hot{color:var(--c-accent-2);background:rgba(255,92,138,.10);border-color:rgba(255,92,138,.38);}
.badge-hot::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent-2);}
.badge-soft{color:var(--c-text-2);background:var(--c-glass);border-color:var(--c-line);}

/* ============ 头部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  background:transparent;border-bottom:1px solid transparent;
  transition:background .24s ease,height .24s ease,border-color .24s ease,backdrop-filter .24s ease;
}
.site-header.is-scrolled{
  background:var(--c-glass-strong);
  border-bottom-color:var(--c-line);
  backdrop-filter:blur(18px) saturate(120%);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:var(--s-3);
  height:84px;transition:height .24s ease;
}
.site-header.is-scrolled .header-inner{height:68px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-text);}
.brand:hover{color:var(--c-text);}
.brand-mark{
  width:32px;height:32px;flex:0 0 32px;border-radius:var(--r-sm);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:800;font-variant-numeric:tabular-nums;
  color:var(--c-accent);
  border:1px solid rgba(200,244,90,.45);
  background:rgba(200,244,90,.07);
  box-shadow:0 0 14px rgba(200,244,90,.18);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:17px;font-weight:800;letter-spacing:.01em;}
.brand-sub{font-size:11px;color:var(--c-text-3);letter-spacing:.06em;}
.main-nav{display:flex;align-items:center;gap:28px;}
.nav-item{
  position:relative;font-size:15px;font-weight:500;color:var(--c-text-2);
  padding:6px 0;transition:color .22s ease;
}
.nav-item:hover{color:var(--c-text);}
.nav-item.active{color:var(--c-text);font-weight:600;}
.nav-item.active::before{
  content:"";position:absolute;left:50%;top:-4px;width:5px;height:5px;border-radius:50%;
  transform:translateX(-50%);background:var(--c-accent);box-shadow:0 0 8px rgba(200,244,90,.8);
}
.nav-item.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,rgba(31,182,255,.2),var(--c-primary),rgba(31,182,255,.2));
  box-shadow:0 0 10px rgba(31,182,255,.7);
}
.header-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  width:44px;height:40px;border-radius:var(--r-sm);
  background:var(--c-glass);border:1px solid var(--c-line-strong);
  display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-text);}
.nav-toggle:hover{border-color:rgba(31,182,255,.55);}

.drawer{
  width:82vw;max-width:360px;background:rgba(10,17,32,.94);
  border-left:1px solid var(--c-line);
  backdrop-filter:blur(20px) saturate(120%);
  -webkit-backdrop-filter:blur(20px) saturate(120%);
  color:var(--c-text);
}
.drawer .offcanvas-header{border-bottom:1px solid var(--c-line);padding:18px 20px;}
.drawer .offcanvas-body{padding:20px;display:flex;flex-direction:column;}
.drawer-nav{display:flex;flex-direction:column;gap:4px;}
.drawer-nav a{
  display:flex;align-items:center;gap:14px;
  padding:14px 6px;border-bottom:1px solid rgba(255,255,255,.06);
  color:var(--c-text-2);font-size:16px;
}
.drawer-nav a b{font-size:12px;font-weight:800;color:var(--c-accent);font-variant-numeric:tabular-nums;opacity:.85;}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--c-text);}
.drawer-nav a.active b{color:var(--c-primary);}
.drawer-cta{margin-top:auto;padding-top:24px;}
.drawer-cta .btn-x{width:100%;}
.btn-close-x{
  background:none;border:1px solid var(--c-line-strong);color:var(--c-text);
  width:36px;height:36px;border-radius:var(--r-sm);cursor:pointer;font-size:16px;line-height:1;
  display:inline-flex;align-items:center;justify-content:center;
}
.btn-close-x:hover{border-color:rgba(31,182,255,.55);color:var(--c-primary);}

/* ============ 页头 Banner ============ */
.page-hero{
  position:relative;overflow:hidden;
  padding:calc(84px + 56px) 0 56px;
  background:var(--c-bg-900);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.page-hero__bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center 30%;
  opacity:.34;
}
.page-hero__veil{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,20,.86) 0%,rgba(6,10,20,.72) 45%,rgba(6,10,20,.96) 100%);
}
.page-hero__glow{
  position:absolute;top:-140px;left:-120px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,182,255,.20) 0%,rgba(31,182,255,0) 68%);
  pointer-events:none;
}
.page-hero__inner{position:relative;z-index:2;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);margin-bottom:22px;}
.crumb a{color:var(--c-text-3);}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{color:rgba(255,255,255,.2);}
.crumb .cur{color:var(--c-text-2);}
.hero-no{
  font-size:clamp(52px,7vw,86px);font-weight:800;line-height:1;
  font-variant-numeric:tabular-nums;color:transparent;
  -webkit-text-stroke:1px rgba(200,244,90,.55);
  letter-spacing:.02em;margin-bottom:10px;
}
.page-hero h1{
  font-size:clamp(32px,4.2vw,50px);font-weight:800;line-height:1.25;
  max-width:22em;margin-bottom:16px;
}
.page-hero h1 em{font-style:normal;color:var(--c-primary);}
.page-hero__desc{max-width:700px;color:var(--c-text-2);font-size:17px;margin-bottom:24px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;}

/* ============ 板块骨架 ============ */
.section{padding:80px 0;}
.section--tight{padding:64px 0;}
.section--alt{background:var(--c-bg-800);border-top:1px solid rgba(255,255,255,.06);border-bottom:1px solid rgba(255,255,255,.06);}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:36px;}
.section-title{font-size:clamp(24px,3vw,32px);font-weight:700;line-height:1.35;margin-bottom:12px;}
.section-title em{font-style:normal;color:var(--c-accent);}
.section-desc{color:var(--c-text-2);font-size:15.5px;max-width:640px;margin:0;}

/* ============ 主内容：窄栏 + 卡片流 ============ */
.cat-layout{display:grid;grid-template-columns:minmax(0,3fr) minmax(0,9fr);gap:32px;align-items:start;}
.side-card{
  position:sticky;top:96px;
  padding:24px;
  border-radius:var(--r-lg);
  background:var(--c-glass);
  border:1px solid var(--c-line);
  box-shadow:var(--sh-1);
  backdrop-filter:blur(16px) saturate(120%);
  -webkit-backdrop-filter:blur(16px) saturate(120%);
}
.side-card h2{font-size:16px;font-weight:700;margin-bottom:16px;}
.side-card h2 span{color:var(--c-accent);font-variant-numeric:tabular-nums;margin-right:6px;}
.side-list{display:flex;flex-direction:column;gap:2px;}
.side-list a{
  position:relative;display:block;padding:11px 0 11px 14px;
  font-size:14.5px;color:var(--c-text-2);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.side-list a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:2px;height:16px;border-radius:2px;background:rgba(255,255,255,.16);
  transition:background .22s ease,box-shadow .22s ease;
}
.side-list a:hover{color:var(--c-text);}
.side-list a:hover::before{background:var(--c-primary);box-shadow:0 0 10px rgba(31,182,255,.8);}
.side-note{
  margin-top:20px;padding-top:18px;border-top:1px solid var(--c-line);
  font-size:13.5px;color:var(--c-text-3);line-height:1.8;
}
.side-cta{margin-top:18px;}
.side-cta .btn-x{width:100%;}

.entry-stack{display:flex;flex-direction:column;gap:22px;}
.entry-card{
  position:relative;display:grid;grid-template-columns:1fr;
  border-radius:var(--r-lg);
  background:var(--c-glass);
  border:1px solid var(--c-line);
  box-shadow:var(--sh-2);
  overflow:hidden;
  transition:transform .22s cubic-bezier(.2,.7,.3,1),border-color .22s ease,box-shadow .22s ease;
}
.entry-card::before{
  content:"";position:absolute;inset:0 0 auto 0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.28),transparent);
}
.entry-card:hover{transform:translateY(-4px);border-color:rgba(31,182,255,.32);box-shadow:var(--sh-3);}
.entry-card--lead{
  grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);
  background:var(--c-glass-strong);
  border-color:rgba(31,182,255,.28);
  box-shadow:var(--sh-2),0 0 0 1px rgba(31,182,255,.18);
}
.entry-cover{position:relative;overflow:hidden;background:var(--c-bg-700);}
.entry-cover img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/9;}
.entry-card--lead .entry-cover{min-height:100%;}
.entry-card--lead .entry-cover img{aspect-ratio:4/3;height:100%;}
.entry-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,10,20,0) 40%,rgba(6,10,20,.55) 100%);
}
.entry-num{
  position:absolute;top:14px;left:16px;z-index:2;
  font-size:26px;font-weight:800;font-variant-numeric:tabular-nums;
  color:rgba(200,244,90,.85);text-shadow:0 2px 12px rgba(0,0,0,.6);
}
.entry-body{padding:26px 28px;background:rgba(6,10,20,.35);}
.entry-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:14px;}
.entry-card h3{font-size:20px;font-weight:600;line-height:1.5;margin-bottom:12px;}
.entry-card h3 a{color:var(--c-text);}
.entry-card h3 a:hover{color:var(--c-primary);}
.entry-card p{color:var(--c-text-2);font-size:15px;line-height:1.9;margin-bottom:16px;}
.entry-foot{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding-top:14px;border-top:1px solid var(--c-line);
  font-size:13.5px;color:var(--c-text-3);
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px;}

/* ============ 能力数据带 ============ */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  border-radius:var(--r-lg);
  border:1px solid var(--c-line);
  background:var(--c-bg-700);
  overflow:hidden;
}
.stat-cell{padding:26px 24px;border-right:1px solid rgba(255,255,255,.06);}
.stat-cell:last-child{border-right:none;}
.stat-num{
  font-size:34px;font-weight:800;line-height:1.1;font-variant-numeric:tabular-nums;
  color:var(--c-accent);margin-bottom:8px;
}
.stat-num small{font-size:15px;font-weight:600;color:var(--c-text-2);margin-left:4px;}
.stat-label{font-size:14.5px;font-weight:600;margin-bottom:6px;}
.stat-text{font-size:13.5px;color:var(--c-text-3);line-height:1.8;margin:0;}

.cap-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin-top:36px;}
.cap-item{
  padding:26px;
  border-radius:var(--r-lg);
  background:var(--c-glass);
  border:1px solid var(--c-line);
  box-shadow:var(--sh-1);
  transition:transform .22s cubic-bezier(.2,.7,.3,1),border-color .22s ease;
}
.cap-item:hover{transform:translateY(-4px);border-color:rgba(31,182,255,.3);}
.cap-item h3{font-size:19px;margin-bottom:10px;}
.cap-item p{color:var(--c-text-2);font-size:15px;margin-bottom:0;}
.cap-kicker{
  display:inline-block;font-size:12px;font-weight:800;letter-spacing:.14em;
  color:var(--c-primary);margin-bottom:10px;font-variant-numeric:tabular-nums;
}

/* ============ 场景清单 ============ */
.scene-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
.scene-item{
  display:flex;gap:16px;padding:22px 24px;
  border-radius:var(--r-md);
  background:var(--c-glass);
  border:1px solid var(--c-line);
  transition:border-color .22s ease,transform .22s cubic-bezier(.2,.7,.3,1);
}
.scene-item:hover{border-color:rgba(31,182,255,.3);transform:translateY(-3px);}
.scene-idx{
  flex:0 0 34px;height:34px;border-radius:var(--r-sm);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:800;font-variant-numeric:tabular-nums;
  color:var(--c-accent);background:rgba(200,244,90,.08);border:1px solid rgba(200,244,90,.3);
}
.scene-item h3{font-size:17px;margin-bottom:6px;}
.scene-item p{font-size:14.5px;color:var(--c-text-2);margin:0;line-height:1.85;}

/* ============ 流程 ============ */
.flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.flow-step{
  position:relative;padding:26px 22px;
  border-radius:var(--r-lg);
  background:var(--c-bg-700);
  border:1px solid var(--c-line);
}
.flow-step::after{
  content:"";position:absolute;top:44px;right:-12px;width:12px;height:1px;
  background:rgba(255,255,255,.18);
}
.flow-step:last-child::after{display:none;}
.flow-step b{
  display:block;font-size:12px;font-weight:800;letter-spacing:.12em;
  color:var(--c-primary);margin-bottom:12px;font-variant-numeric:tabular-nums;
}
.flow-step h3{font-size:17px;margin-bottom:8px;}
.flow-step p{font-size:14px;color:var(--c-text-2);margin:0;line-height:1.85;}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto;}
.accordion-item{
  background:var(--c-glass);
  border:1px solid var(--c-line) !important;
  border-radius:var(--r-md) !important;
  margin-bottom:14px;
  overflow:hidden;
  backdrop-filter:blur(14px) saturate(120%);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  transition:border-color .22s ease;
}
.accordion-item:has(.accordion-button:not(.collapsed)){border-color:rgba(200,244,90,.42) !important;}
.accordion-button{
  background:transparent !important;
  color:var(--c-text) !important;
  font-size:15.5px;font-weight:500;line-height:1.6;
  padding:18px 56px 18px 24px;min-height:56px;
  box-shadow:none !important;
}
.accordion-button:not(.collapsed){color:var(--c-text) !important;}
.accordion-button::after{
  content:"" !important;
  background-image:none !important;
  position:absolute;right:24px;top:50%;
  width:14px;height:2px;border-radius:2px;background:var(--c-accent);
  transform:translateY(-50%);
  transition:transform .22s ease,background .22s ease;
}
.accordion-button.collapsed::after{
  transform:translateY(-50%);
  box-shadow:0 -6px 0 0 var(--c-accent),0 6px 0 0 var(--c-accent);
  background:var(--c-accent);
}
.accordion-button:not(.collapsed)::after{
  box-shadow:none;background:var(--c-accent);transform:translateY(-50%) rotate(180deg);
}
.accordion-body{
  padding:0 24px 22px;
  color:var(--c-text-2);font-size:14.5px;line-height:1.9;
  border-top:1px solid rgba(255,255,255,.06);
  padding-top:16px;
}

/* ============ CTA 条 ============ */
.cta-bar{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:22px;
  padding:28px 32px;
  border-radius:var(--r-xl);
  background:var(--c-glass-strong);
  border:1px solid var(--c-line-strong);
  box-shadow:var(--sh-2);
  backdrop-filter:blur(18px) saturate(120%);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
}
.cta-bar__text{font-size:17px;font-weight:600;margin:0;line-height:1.6;}
.cta-bar__text small{display:block;font-size:13.5px;font-weight:400;color:var(--c-text-3);margin-top:6px;}
.cta-bar__actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--c-bg-900);
  border-top:1px solid var(--c-line);
  padding:64px 0 26px;
  margin-top:8px;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--c-text-3);line-height:1.9;margin:0;max-width:34em;}
.site-footer h4{font-size:15px;font-weight:600;margin-bottom:16px;color:var(--c-text);}
.footer-links li{margin-bottom:10px;}
.footer-links a{font-size:14px;color:var(--c-text-2);display:inline-block;}
.footer-links a:hover{color:var(--c-primary);transform:translateX(2px);}
.footer-contact li{font-size:14px;color:var(--c-text-2);margin-bottom:10px;line-height:1.75;}
.footer-contact b{color:var(--c-text-3);font-weight:500;}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.06);
  font-size:13px;color:var(--c-text-3);
}

/* ============ 响应式 ============ */
@media (min-width:1400px){
  .section{padding:96px 0;}
  .entry-card--lead .entry-cover img{aspect-ratio:16/10;}
}
@media (max-width:1199.98px){
  .cat-layout{grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:26px;}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stat-cell:nth-child(2){border-right:none;}
  .stat-cell:nth-child(1),.stat-cell:nth-child(2){border-bottom:1px solid rgba(255,255,255,.06);}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr));}
  .flow-step::after{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:991.98px){
  .main-nav{display:none;}
  .cat-layout{grid-template-columns:1fr;}
  .side-card{position:static;}
  .side-list{
    flex-direction:row;overflow-x:auto;gap:10px;padding-bottom:6px;
    scrollbar-width:none;
  }
  .side-list::-webkit-scrollbar{display:none;}
  .side-list a{
    flex:0 0 auto;padding:9px 16px;border:1px solid var(--c-line);border-radius:var(--r-pill);
    font-size:13.5px;white-space:nowrap;
  }
  .side-list a::before{display:none;}
  .side-list a:hover{border-color:rgba(31,182,255,.5);}
  .entry-card--lead{grid-template-columns:1fr;}
  .entry-card--lead .entry-cover img{aspect-ratio:16/9;height:auto;}
  .cap-grid{grid-template-columns:1fr;}
  .scene-list{grid-template-columns:1fr;}
}
@media (max-width:767.98px){
  .container-x,.container-wide{padding:0 16px;}
  body{font-size:15.5px;}
  .section{padding:48px 0;}
  .section--tight{padding:44px 0;}
  .page-hero{padding:calc(68px + 40px) 0 44px;}
  .page-hero__desc{font-size:16px;}
  .btn-x{width:100%;}
  .cta-bar__actions{width:100%;}
  .cta-bar__actions .btn-x{width:100%;}
  .entry-body{padding:20px;}
  .side-card{padding:18px;}
  .stat-strip{grid-template-columns:1fr;}
  .stat-cell{border-right:none;border-bottom:1px solid rgba(255,255,255,.06);}
  .stat-cell:last-child{border-bottom:none;}
  .flow{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .cta-bar{padding:22px 20px;}
  .section-head{margin-bottom:26px;}
}
@media (max-width:575.98px){
  .page-hero h1{font-size:29px;}
  .hero-no{font-size:52px;}
  .entry-body{padding:18px;}
  .stat-num{font-size:28px;}
  .cta-bar__text{font-size:16px;}
  .btn-primary-x,.btn-accent{box-shadow:0 0 0 1px rgba(31,182,255,.22);}
}

/* roulang page: category3 */
:root{
  --c-bg-900:#060A14;
  --c-bg-800:#0A1120;
  --c-bg-700:#101A2E;
  --c-glass:rgba(255,255,255,.055);
  --c-glass-strong:rgba(255,255,255,.09);
  --c-line:rgba(255,255,255,.10);
  --c-line-strong:rgba(255,255,255,.18);
  --c-primary:#1FB6FF;
  --c-primary-deep:#0C6BD4;
  --c-accent:#C8F45A;
  --c-accent-2:#FF5C8A;
  --c-text:#EAEFF7;
  --c-text-2:#A9B6C9;
  --c-text-3:#6C7A90;
  --c-success:#35D08A;
  --c-warn:#F5B33C;
  --c-danger:#F2604F;
  --glow-primary:0 0 0 1px rgba(31,182,255,.35), 0 8px 28px rgba(31,182,255,.28);
  --glow-accent:0 0 0 1px rgba(200,244,90,.30), 0 6px 22px rgba(200,244,90,.22);
  --sh-1:0 6px 18px rgba(0,0,0,.35);
  --sh-2:0 16px 40px rgba(0,0,0,.45);
  --sh-3:0 28px 64px rgba(0,0,0,.55);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:20px;
  --r-xl:26px;
  --r-pill:999px;
  --s-1:8px;--s-2:16px;--s-3:24px;--s-4:32px;--s-5:48px;--s-6:64px;--s-7:96px;
  --f-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg-900);
  color:var(--c-text);
  font-family:var(--f-sans);
  font-size:16px;
  line-height:1.95;
  letter-spacing:.01em;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease,transform .2s ease;}
a:hover{color:var(--c-accent);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;color:var(--c-text);}
p{margin:0 0 1.1em;color:var(--c-text-2);text-align:left;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px;border-radius:4px;}

.container-x{width:100%;max-width:1240px;margin:0 auto;padding-left:24px;padding-right:24px;}
.container-wide{width:100%;max-width:1440px;margin:0 auto;padding-left:24px;padding-right:24px;}

/* ============ HEADER / NAV ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1040;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .24s ease,height .24s ease,border-color .24s ease,backdrop-filter .24s ease;
}
.site-header .header-inner{
  height:84px;display:flex;align-items:center;justify-content:space-between;gap:24px;
  transition:height .24s ease;
}
.site-header.is-scrolled{
  background:var(--c-glass-strong);
  border-bottom-color:var(--c-line);
  backdrop-filter:blur(18px) saturate(120%);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
}
.site-header.is-scrolled .header-inner{height:68px;}

.brand{display:flex;align-items:center;gap:12px;color:var(--c-text);flex-shrink:0;}
.brand:hover{color:var(--c-text);}
.brand-mark{
  width:32px;height:32px;flex:0 0 32px;border-radius:var(--r-sm);
  display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:800;letter-spacing:.02em;
  color:var(--c-accent);
  background:rgba(31,182,255,.10);
  border:1px solid rgba(31,182,255,.45);
  box-shadow:0 0 0 1px rgba(31,182,255,.18),0 4px 16px rgba(31,182,255,.18);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-name{font-size:17px;font-weight:800;letter-spacing:.02em;}
.brand-sub{font-size:11px;color:var(--c-text-3);letter-spacing:.14em;}

.main-nav{display:flex;align-items:center;gap:28px;}
.nav-item{
  position:relative;font-size:15px;color:var(--c-text-2);padding:6px 0;
  transition:color .2s ease;
}
.nav-item::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:transparent;transition:background .2s ease,box-shadow .2s ease;
}
.nav-item:hover{color:var(--c-text);}
.nav-item.active{color:var(--c-text);font-weight:600;}
.nav-item.active::before{
  content:"";position:absolute;left:50%;top:-8px;transform:translateX(-50%);
  width:5px;height:5px;border-radius:50%;background:var(--c-accent);
  box-shadow:0 0 10px rgba(200,244,90,.8);
}
.nav-item.active::after{background:var(--c-accent);box-shadow:0 0 12px rgba(200,244,90,.55);}

.header-right{display:flex;align-items:center;gap:16px;flex-shrink:0;}
.icon-btn{
  width:38px;height:38px;border-radius:var(--r-pill);
  display:flex;align-items:center;justify-content:center;
  background:var(--c-glass);border:1px solid var(--c-line);color:var(--c-text-2);
  cursor:pointer;transition:all .2s ease;
}
.icon-btn:hover{color:var(--c-text);border-color:var(--c-line-strong);background:var(--c-glass-strong);}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:14px 26px;border-radius:var(--r-pill);
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{
  color:#06131F;background:linear-gradient(135deg,var(--c-accent) 0%,#9FE04A 100%);
  border-color:rgba(200,244,90,.6);
  box-shadow:var(--glow-accent);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(200,244,90,.45),0 12px 32px rgba(200,244,90,.32);color:#06131F;}
.btn-primary:active{transform:translateY(1px);}
.btn-outline{
  color:var(--c-text);background:var(--c-glass);border-color:var(--c-line-strong);
  backdrop-filter:blur(14px) saturate(120%);
}
.btn-outline:hover{color:var(--c-text);border-color:rgba(31,182,255,.55);background:var(--c-glass-strong);transform:translateY(-1px);}
.btn-ghost{
  color:var(--c-primary);background:rgba(31,182,255,.08);
  border-color:rgba(31,182,255,.40);box-shadow:var(--glow-primary);
}
.btn-ghost:hover{color:var(--c-text);background:rgba(31,182,255,.16);transform:translateY(-1px);}
.btn-share{
  color:var(--c-accent-2);background:transparent;border-color:rgba(255,92,138,.55);
  padding:12px 20px;font-size:14px;
}
.btn-share:hover{color:#fff;background:rgba(255,92,138,.16);border-color:var(--c-accent-2);}
.btn-sm{padding:10px 18px;font-size:14px;}

.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary);
}
.link-arrow i{transition:transform .2s ease;}
.link-arrow:hover i{transform:translateX(4px);}

.burger{display:none;}

/* Offcanvas */
.offcanvas{background:rgba(10,17,32,.94);backdrop-filter:blur(18px) saturate(120%);color:var(--c-text);width:82vw;max-width:360px;border-left:1px solid var(--c-line);}
.offcanvas-header{padding:20px 22px;border-bottom:1px solid var(--c-line);}
.offcanvas-body{padding:16px 22px 24px;display:flex;flex-direction:column;height:100%;}
.offcanvas .btn-close{filter:invert(1) grayscale(1) brightness(2);opacity:.75;}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:auto;}
.drawer-nav a{
  display:flex;align-items:center;gap:14px;
  padding:14px 12px;border-radius:var(--r-sm);
  color:var(--c-text-2);font-size:16px;border:1px solid transparent;
}
.drawer-nav a .idx{font-size:12px;font-weight:800;color:var(--c-accent);opacity:.75;font-variant-numeric:tabular-nums;}
.drawer-nav a:hover{background:var(--c-glass);color:var(--c-text);border-color:var(--c-line);}
.drawer-nav a.active{background:var(--c-glass);color:var(--c-text);border-color:rgba(200,244,90,.35);}

/* ============ PAGE HEAD ============ */
.page-head{
  position:relative;padding:150px 0 60px;
  background:
    linear-gradient(180deg,rgba(6,10,20,.90) 0%,rgba(6,10,20,.72) 45%,var(--c-bg-900) 100%),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  border-bottom:1px solid rgba(255,255,255,.06);
  overflow:hidden;
}
.page-head::after{
  content:"";position:absolute;inset:auto auto -140px -120px;width:480px;height:480px;
  background:radial-gradient(circle,rgba(31,182,255,.16) 0%,rgba(31,182,255,0) 68%);
  pointer-events:none;
}
.breadcrumb-line{
  display:flex;align-items:center;gap:10px;font-size:13px;color:var(--c-text-3);margin-bottom:22px;
}
.breadcrumb-line a{color:var(--c-text-2);}
.breadcrumb-line a:hover{color:var(--c-primary);}
.breadcrumb-line span.sep{color:var(--c-line-strong);}
.breadcrumb-line .current{color:var(--c-text-3);}

.page-head-grid{display:grid;grid-template-columns:112px 1fr;gap:32px;align-items:start;position:relative;z-index:2;}
.head-num{
  font-size:64px;font-weight:800;line-height:1;color:transparent;
  -webkit-text-stroke:1px rgba(200,244,90,.75);
  font-variant-numeric:tabular-nums;letter-spacing:.02em;
}
.head-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;color:var(--c-accent);
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(200,244,90,.10);border:1px solid rgba(200,244,90,.32);
  margin-bottom:18px;
}
.page-head h1{font-size:44px;font-weight:800;line-height:1.25;letter-spacing:-.01em;margin-bottom:16px;}
.page-head h1 em{font-style:normal;color:var(--c-primary);}
.head-desc{font-size:16px;color:var(--c-text-2);max-width:720px;margin-bottom:24px;}
.head-metrics{display:flex;flex-wrap:wrap;gap:10px;}
.metric-chip{
  font-size:13px;color:var(--c-text-2);
  padding:7px 14px;border-radius:var(--r-pill);
  background:var(--c-glass);border:1px solid var(--c-line);
  display:inline-flex;align-items:center;gap:8px;
}
.metric-chip b{color:var(--c-text);font-weight:700;font-variant-numeric:tabular-nums;}
.dot-live{width:6px;height:6px;border-radius:50%;background:var(--c-success);box-shadow:0 0 8px rgba(53,208,138,.8);}
.dot-hot{width:6px;height:6px;border-radius:50%;background:var(--c-accent-2);box-shadow:0 0 8px rgba(255,92,138,.8);}

/* ============ SECTIONS ============ */
.section{padding:88px 0;}
.section-alt{background:var(--c-bg-800);border-top:1px solid rgba(255,255,255,.06);border-bottom:1px solid rgba(255,255,255,.06);}
.section-head{margin-bottom:40px;max-width:780px;}
.section-head .eyebrow{
  font-size:12px;letter-spacing:.16em;color:var(--c-primary);
  display:block;margin-bottom:14px;
}
.section-head h2{font-size:32px;font-weight:700;margin-bottom:14px;}
.section-head p{font-size:15px;color:var(--c-text-2);margin:0;}

/* 侧栏 + 主内容 */
.layout-split{display:grid;grid-template-columns:minmax(0,3fr) minmax(0,9fr);gap:32px;align-items:start;}
.side-panel{position:sticky;top:96px;}
.side-card{
  background:var(--c-glass);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:24px;backdrop-filter:blur(14px) saturate(120%);box-shadow:var(--sh-1);
}
.side-card h3{font-size:16px;margin-bottom:6px;}
.side-card .side-note{font-size:13px;color:var(--c-text-3);margin:0 0 18px;line-height:1.7;}
.side-list{display:flex;flex-direction:column;gap:2px;margin-bottom:20px;}
.side-list a{
  position:relative;display:block;padding:11px 12px 11px 18px;border-radius:var(--r-sm);
  color:var(--c-text-2);font-size:14.5px;border-left:2px solid transparent;
  transition:all .2s ease;
}
.side-list a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:2px;height:60%;background:var(--c-line-strong);border-radius:2px;transition:background .2s ease,box-shadow .2s ease;
}
.side-list a:hover{color:var(--c-text);background:var(--c-glass);}
.side-list a:hover::before{background:var(--c-primary);box-shadow:0 0 10px rgba(31,182,255,.7);}
.side-stats{display:flex;flex-direction:column;gap:12px;padding-top:18px;border-top:1px solid var(--c-line);}
.side-stats div{display:flex;justify-content:space-between;font-size:13px;color:var(--c-text-3);}
.side-stats b{color:var(--c-accent);font-weight:800;font-variant-numeric:tabular-nums;}

.anchor-pills{display:flex;gap:10px;overflow-x:auto;padding-bottom:10px;margin-bottom:20px;}
.anchor-pills a{
  flex:0 0 auto;font-size:13px;color:var(--c-text-2);
  padding:8px 16px;border-radius:var(--r-pill);
  background:var(--c-glass);border:1px solid var(--c-line);white-space:nowrap;
}
.anchor-pills a:hover{color:var(--c-text);border-color:rgba(31,182,255,.5);}

/* 卡片 */
.card-glass{
  position:relative;
  background:var(--c-glass);border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--sh-2),inset 0 1px 0 rgba(255,255,255,.08);
  backdrop-filter:blur(16px) saturate(120%);
  overflow:hidden;
  transition:transform .22s cubic-bezier(.2,.7,.3,1),border-color .22s ease,box-shadow .22s ease;
}
.card-glass:hover{transform:translateY(-4px);border-color:rgba(31,182,255,.30);box-shadow:var(--sh-3),inset 0 1px 0 rgba(255,255,255,.10);}
.card-pad{padding:26px;}

.thumb{
  position:relative;width:100%;aspect-ratio:16/9;background:var(--c-bg-700);overflow:hidden;
}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s cubic-bezier(.2,.7,.3,1);}
.card-glass:hover .thumb img{transform:scale(1.04);}
.thumb-4x3{aspect-ratio:4/3;}
.thumb-tag{
  position:absolute;left:14px;top:14px;
  font-size:12px;color:var(--c-accent);
  padding:5px 12px;border-radius:var(--r-pill);
  background:rgba(6,10,20,.62);border:1px solid rgba(200,244,90,.36);
  backdrop-filter:blur(8px);
}
.thumb-num{
  position:absolute;right:14px;bottom:10px;
  font-size:34px;font-weight:800;line-height:1;color:rgba(200,244,90,.68);
  font-variant-numeric:tabular-nums;
  text-shadow:0 4px 18px rgba(0,0,0,.6);
}

.card-body-inner{padding:22px 26px 26px;background:rgba(6,10,20,.35);}
.card-title{font-size:20px;font-weight:600;line-height:1.5;margin-bottom:10px;}
.card-title a{color:var(--c-text);}
.card-title a:hover{color:var(--c-primary);}
.card-text{font-size:14.5px;color:var(--c-text-2);line-height:1.9;margin-bottom:16px;}
.card-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:14px;border-top:1px solid var(--c-line);
  font-size:13px;color:var(--c-text-3);
}
.badge-tag{
  display:inline-flex;align-items:center;gap:6px;height:22px;
  font-size:12px;line-height:1;padding:0 12px;border-radius:var(--r-pill);
  color:var(--c-accent);background:rgba(200,244,90,.10);border:1px solid rgba(200,244,90,.34);
}
.badge-plain{
  display:inline-flex;align-items:center;height:22px;font-size:12px;line-height:1;
  padding:0 12px;border-radius:var(--r-pill);color:var(--c-text-2);
  background:var(--c-glass);border:1px solid var(--c-line);
}
.badge-new{color:var(--c-text);}
.badge-new::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--c-accent-2);box-shadow:0 0 8px rgba(255,92,138,.85);}

/* 大条目卡 */
.feature-card{display:grid;grid-template-columns:1.05fr 1fr;align-items:stretch;}
.feature-card .thumb{height:100%;aspect-ratio:auto;min-height:280px;}
.feature-card .card-body-inner{display:flex;flex-direction:column;justify-content:center;padding:34px;}
.feature-card .card-title{font-size:26px;font-weight:700;}

/* 小卡网格 */
.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;margin-top:22px;}

/* 适用场景 */
.scene-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.scene-item{
  padding:24px;border-radius:var(--r-md);
  background:var(--c-bg-700);border:1px solid var(--c-line);
  transition:transform .22s cubic-bezier(.2,.7,.3,1),border-color .22s ease;
}
.scene-item:hover{transform:translateY(-4px);border-color:rgba(200,244,90,.30);}
.scene-item .si-icon{
  width:40px;height:40px;border-radius:var(--r-sm);display:flex;align-items:center;justify-content:center;
  background:rgba(31,182,255,.12);border:1px solid rgba(31,182,255,.34);color:var(--c-primary);
  font-size:16px;margin-bottom:16px;
}
.scene-item h3{font-size:17px;margin-bottom:8px;}
.scene-item p{font-size:14px;color:var(--c-text-2);margin:0;line-height:1.85;}

/* 流程 */
.flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;counter-reset:flow;}
.flow-step{
  position:relative;padding:26px 22px 24px;
  background:var(--c-glass);border:1px solid var(--c-line);border-radius:var(--r-md);
}
.flow-step::before{
  counter-increment:flow;content:"0" counter(flow);
  display:block;font-size:22px;font-weight:800;color:var(--c-accent);
  opacity:.85;margin-bottom:12px;font-variant-numeric:tabular-nums;
}
.flow-step h3{font-size:16.5px;margin-bottom:8px;}
.flow-step p{font-size:14px;color:var(--c-text-2);margin:0;line-height:1.85;}

/* FAQ */
.faq-wrap{max-width:900px;margin:0 auto;}
.accordion-item{
  background:var(--c-glass);border:1px solid var(--c-line);border-radius:var(--r-md)!important;
  margin-bottom:12px;overflow:hidden;
}
.accordion-item+.accordion-item{margin-top:12px;}
.accordion-button{
  background:transparent;color:var(--c-text);font-size:15.5px;font-weight:500;
  min-height:56px;padding:16px 54px 16px 22px;border:0!important;box-shadow:none!important;
}
.accordion-button:not(.collapsed){color:var(--c-text);background:rgba(200,244,90,.05);}
.accordion-button::after{
  content:"+";font-size:20px;font-weight:400;line-height:1;color:var(--c-accent);
  background-image:none!important;transform:none;width:auto;height:auto;
  position:absolute;right:22px;top:50%;margin-top:-11px;
}
.accordion-button:not(.collapsed)::after{content:"–";color:var(--c-accent);}
.accordion-body{padding:0 22px 20px;font-size:14.5px;color:var(--c-text-2);line-height:1.95;}
.accordion-item:has(.accordion-button:not(.collapsed)){border-color:rgba(200,244,90,.35);}

/* CTA 条 */
.cta-bar{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  padding:30px 34px;border-radius:var(--r-lg);
  background:var(--c-glass-strong);border:1px solid var(--c-line-strong);
  backdrop-filter:blur(18px) saturate(120%);box-shadow:var(--sh-2);
}
.cta-bar .cta-text{font-size:17px;color:var(--c-text);font-weight:600;margin:0 0 6px;}
.cta-bar .cta-sub{font-size:14px;color:var(--c-text-2);margin:0;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* 相邻分类 */
.next-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.next-card{
  display:block;padding:24px;border-radius:var(--r-md);
  background:var(--c-bg-700);border:1px solid var(--c-line);
  color:var(--c-text);transition:all .22s cubic-bezier(.2,.7,.3,1);
}
.next-card:hover{border-color:rgba(31,182,255,.35);transform:translateY(-4px);color:var(--c-text);}
.next-card .nc-num{font-size:13px;font-weight:800;color:var(--c-accent);opacity:.85;letter-spacing:.1em;}
.next-card h3{font-size:18px;margin:10px 0 8px;}
.next-card p{font-size:14px;color:var(--c-text-2);margin:0;line-height:1.8;}

/* ============ FOOTER ============ */
.site-footer{
  background:var(--c-bg-900);border-top:1px solid var(--c-line);padding:64px 0 28px;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--c-text-3);line-height:1.9;margin:0;max-width:360px;}
.site-footer h4{font-size:15px;margin-bottom:18px;color:var(--c-text);}
.footer-links li,.footer-contact li{margin-bottom:11px;font-size:14px;color:var(--c-text-3);line-height:1.7;}
.footer-links a{color:var(--c-text-2);display:inline-block;transition:color .2s ease,transform .2s ease;}
.footer-links a:hover{color:var(--c-primary);transform:translateX(2px);}
.footer-contact b{color:var(--c-text-2);font-weight:600;}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--c-text-3);
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .container-x{padding-left:20px;padding-right:20px;}
  .scene-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:991.98px){
  .main-nav,.header-right .btn-ghost{display:none;}
  .burger{display:flex;}
  .page-head{padding:128px 0 52px;}
  .page-head h1{font-size:34px;}
  .page-head-grid{grid-template-columns:1fr;gap:16px;}
  .head-num{font-size:46px;}
  .section{padding:56px 0;}
  .layout-split{grid-template-columns:1fr;}
  .side-panel{position:static;}
  .side-card{display:none;}
  .feature-card{grid-template-columns:1fr;}
  .feature-card .thumb{min-height:210px;aspect-ratio:16/9;}
  .feature-card .card-body-inner{padding:24px;}
  .feature-card .card-title{font-size:21px;}
  .next-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767.98px){
  .container-x{padding-left:16px;padding-right:16px;}
  .section{padding:48px 0;}
  .section-head h2{font-size:25px;}
  .card-grid{grid-template-columns:1fr;}
  .scene-grid{grid-template-columns:1fr;}
  .flow{grid-template-columns:1fr;}
  .btn{width:100%;}
  .cta-actions{width:100%;}
  .cta-bar{padding:24px 20px;}
  .card-body-inner{padding:18px 18px 20px;}
  .card-pad{padding:18px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  p,li{font-size:15px;}
}
@media (max-width:575.98px){
  .page-head h1{font-size:28px;}
  .head-num{font-size:38px;}
  .card-title{font-size:18px;}
  .feature-card .card-title{font-size:19px;}
  .btn-primary,.btn-ghost{box-shadow:none;}
  .thumb-tag{font-size:11px;padding:4px 10px;}
}

/* roulang page: category4 */
:root{
  --c-bg-900:#060A14;
  --c-bg-800:#0A1120;
  --c-bg-700:#101A2E;
  --c-glass:rgba(255,255,255,.055);
  --c-glass-strong:rgba(255,255,255,.09);
  --c-line:rgba(255,255,255,.10);
  --c-line-strong:rgba(255,255,255,.18);
  --c-primary:#1FB6FF;
  --c-primary-deep:#0C6BD4;
  --c-accent:#C8F45A;
  --c-accent-2:#FF5C8A;
  --c-text:#EAEFF7;
  --c-text-2:#A9B6C9;
  --c-text-3:#6C7A90;
  --c-success:#35D08A;
  --c-warn:#F5B33C;
  --c-danger:#F2604F;
  --glow-primary:0 0 0 1px rgba(31,182,255,.35),0 8px 28px rgba(31,182,255,.28);
  --glow-accent:0 0 0 1px rgba(200,244,90,.30),0 6px 22px rgba(200,244,90,.22);
  --sh-1:0 6px 18px rgba(0,0,0,.35);
  --sh-2:0 16px 40px rgba(0,0,0,.45);
  --sh-3:0 28px 64px rgba(0,0,0,.55);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:20px;
  --r-xl:26px;
  --r-pill:999px;
  --s-1:8px;--s-2:16px;--s-3:24px;--s-4:32px;--s-5:48px;--s-6:64px;--s-7:96px;
  --f-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;padding:0;
  font-family:var(--f-sans);
  font-size:16px;line-height:1.95;
  color:var(--c-text);
  background:var(--c-bg-900);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease,transform .2s ease;}
a:hover{color:var(--c-accent);}
h1,h2,h3,h4,h5{margin:0;color:var(--c-text);font-weight:700;letter-spacing:0;}
p{margin:0 0 1.1em;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px;border-radius:var(--r-sm);}

.container-x{
  width:100%;max-width:1240px;margin:0 auto;
  padding-left:24px;padding-right:24px;
}
.container-wide{
  width:100%;max-width:1440px;margin:0 auto;
  padding-left:24px;padding-right:24px;
}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1040;
  height:84px;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:height .24s ease,background-color .24s ease,border-color .24s ease,backdrop-filter .24s ease;
}
.site-header.is-scrolled{
  height:68px;
  background:var(--c-glass-strong);
  border-bottom-color:var(--c-line);
  -webkit-backdrop-filter:blur(16px) saturate(120%);
  backdrop-filter:blur(16px) saturate(120%);
}
.header-inner{
  height:100%;display:flex;align-items:center;justify-content:space-between;gap:var(--s-3);
}
.brand{display:flex;align-items:center;gap:12px;color:var(--c-text);flex-shrink:0;}
.brand:hover{color:var(--c-text);}
.brand-mark{
  width:32px;height:32px;flex:0 0 32px;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:800;font-variant-numeric:tabular-nums;
  color:var(--c-accent);
  border:1px solid rgba(200,244,90,.45);
  border-radius:var(--r-sm);
  background:rgba(200,244,90,.08);
  box-shadow:var(--glow-accent);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:17px;font-weight:800;color:var(--c-text);}
.brand-sub{font-size:11px;color:var(--c-text-3);letter-spacing:.06em;}

.main-nav{display:flex;align-items:center;gap:28px;}
.nav-item{
  position:relative;
  font-size:15px;color:var(--c-text-2);
  padding:6px 0;
  transition:color .2s ease;
}
.nav-item::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;
  background:var(--c-accent);opacity:0;transform:scaleX(.4);
  transition:opacity .2s ease,transform .2s ease;
  box-shadow:0 0 12px rgba(200,244,90,.6);
}
.nav-item:hover{color:var(--c-text);}
.nav-item.active{color:var(--c-text);font-weight:600;}
.nav-item.active::after{opacity:1;transform:scaleX(1);}
.nav-item.active::before{
  content:"";position:absolute;left:-12px;top:50%;transform:translateY(-50%);
  width:5px;height:5px;border-radius:50%;background:var(--c-accent);
  box-shadow:0 0 8px rgba(200,244,90,.8);
}
.header-actions{display:flex;align-items:center;gap:var(--s-2);}
.icon-btn{
  width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;
  color:var(--c-text-2);
  background:var(--c-glass);border:1px solid var(--c-line);
  border-radius:var(--r-pill);
  transition:color .2s ease,border-color .2s ease,background-color .2s ease;
}
.icon-btn:hover{color:var(--c-primary);border-color:rgba(31,182,255,.5);background:rgba(31,182,255,.08);}
.nav-toggle{display:none;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;
  padding:12px 26px;
  border-radius:var(--r-pill);
  border:1px solid transparent;
  transition:transform .22s cubic-bezier(.2,.7,.3,1),box-shadow .22s ease,background-color .22s ease,border-color .22s ease,color .22s ease,filter .22s ease;
  white-space:nowrap;
}
.btn-sm{font-size:14px;padding:9px 20px;}
.btn-primary{
  color:#EAF6FF;
  border-color:rgba(31,182,255,.65);
  background:linear-gradient(135deg,rgba(31,182,255,.28),rgba(12,107,212,.42));
  box-shadow:var(--glow-primary);
}
.btn-primary:hover{
  color:#fff;filter:brightness(1.08);transform:translateY(-1px);
  box-shadow:0 0 0 1px rgba(31,182,255,.5),0 12px 34px rgba(31,182,255,.36);
}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  color:var(--c-text);
  background:var(--c-glass);
  border-color:var(--c-line-strong);
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
}
.btn-ghost:hover{color:var(--c-text);border-color:rgba(31,182,255,.6);background:rgba(31,182,255,.09);transform:translateY(-1px);}
.btn-accent{
  color:#0A1120;
  background:var(--c-accent);
  border-color:rgba(200,244,90,.8);
  box-shadow:var(--glow-accent);
}
.btn-accent:hover{color:#0A1120;filter:brightness(1.06);transform:translateY(-1px);}
.btn-accent:active{transform:translateY(1px);}
.btn-outline-magenta{
  color:#FFD7E3;
  background:rgba(255,92,138,.08);
  border-color:rgba(255,92,138,.5);
}
.btn-outline-magenta:hover{color:#fff;border-color:rgba(255,92,138,.85);background:rgba(255,92,138,.16);transform:translateY(-1px);}
.btn[disabled],.btn:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}

.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--c-primary);
  transition:transform .2s ease,color .2s ease;
}
.link-arrow i{font-size:12px;transition:transform .2s ease;}
.link-arrow:hover{color:var(--c-accent);transform:translateX(2px);}
.link-arrow:hover i{transform:translateX(3px);}

/* ============ 徽章 ============ */
.badge-pill{
  display:inline-flex;align-items:center;gap:6px;
  height:22px;padding:0 10px;
  font-size:12px;font-weight:600;line-height:1.4;
  color:var(--c-accent);
  border:1px solid rgba(200,244,90,.35);
  background:rgba(200,244,90,.1);
  border-radius:var(--r-pill);
}
.badge-pill.is-blue{color:var(--c-primary);border-color:rgba(31,182,255,.35);background:rgba(31,182,255,.1);}
.badge-pill.is-muted{color:var(--c-text-2);border-color:var(--c-line);background:var(--c-glass);}
.badge-dot{width:6px;height:6px;border-radius:50%;background:var(--c-accent-2);box-shadow:0 0 8px rgba(255,92,138,.8);}

/* ============ 页头区 ============ */
.page-head{
  position:relative;
  margin-top:84px;
  padding:72px 0 64px;
  background-color:var(--c-bg-900);
  background-image:linear-gradient(90deg,rgba(6,10,20,.94) 0%,rgba(6,10,20,.78) 48%,rgba(6,10,20,.62) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  overflow:hidden;
  border-bottom:1px solid var(--c-line);
}
.page-head::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(680px 320px at 12% 22%,rgba(31,182,255,.16),transparent 68%);
}
.page-head .container-x{position:relative;z-index:2;}
.crumb{
  display:flex;align-items:center;gap:10px;
  font-size:13px;color:var(--c-text-3);margin-bottom:var(--s-3);
}
.crumb a{color:var(--c-text-3);}
.crumb a:hover{color:var(--c-primary);}
.crumb span.sep{color:rgba(255,255,255,.2);}
.crumb .current{color:var(--c-text-2);}
.head-flex{display:flex;align-items:flex-start;gap:var(--s-4);}
.cat-num{
  font-size:64px;font-weight:800;line-height:1;
  color:transparent;
  -webkit-text-stroke:1.5px rgba(200,244,90,.7);
  font-variant-numeric:tabular-nums;
  flex:0 0 auto;
}
.page-title{
  font-size:44px;line-height:1.25;font-weight:800;
  margin-bottom:14px;
}
.page-title em{
  font-style:normal;color:var(--c-primary);
  border-bottom:2px solid var(--c-accent);padding-bottom:2px;
}
.page-desc{
  max-width:720px;color:var(--c-text-2);font-size:16px;margin-bottom:var(--s-3);
}
.head-badges{display:flex;flex-wrap:wrap;gap:10px;}

/* ============ 窄栏 + 卡片流 ============ */
.flow-section{padding:80px 0;background:var(--c-bg-900);}
.flow-section.alt{background:var(--c-bg-800);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.section-head{margin-bottom:var(--s-4);}
.section-head h2{font-size:31px;line-height:1.35;font-weight:700;margin-bottom:10px;}
.section-head p{color:var(--c-text-2);font-size:15px;max-width:760px;margin:0;}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:var(--s-3);flex-wrap:wrap;}

.side-rail{position:sticky;top:104px;}
.rail-card{
  padding:22px;
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  background:var(--c-glass);
  -webkit-backdrop-filter:blur(16px) saturate(120%);
  backdrop-filter:blur(16px) saturate(120%);
  box-shadow:var(--sh-1);
}
.rail-card h3{font-size:16px;font-weight:700;margin-bottom:6px;}
.rail-card .rail-note{font-size:13px;color:var(--c-text-3);margin-bottom:var(--s-3);}
.rail-list li{margin-bottom:2px;}
.rail-list a{
  display:flex;align-items:center;gap:10px;
  padding:10px 12px;border-radius:var(--r-sm);
  font-size:14px;color:var(--c-text-2);
  border-left:2px solid transparent;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.rail-list a b{font-variant-numeric:tabular-nums;color:var(--c-text-3);font-size:12px;font-weight:700;}
.rail-list a:hover{color:var(--c-text);background:rgba(31,182,255,.08);border-left-color:var(--c-primary);}
.rail-list a:hover b{color:var(--c-primary);}
.rail-pills{display:none;gap:10px;overflow-x:auto;padding-bottom:6px;margin-bottom:var(--s-3);}
.rail-pills a{
  flex:0 0 auto;padding:8px 16px;font-size:13px;
  border:1px solid var(--c-line);border-radius:var(--r-pill);
  background:var(--c-glass);color:var(--c-text-2);white-space:nowrap;
}
.rail-pills a:hover{color:var(--c-text);border-color:rgba(31,182,255,.5);}

.entry-card{
  position:relative;
  display:flex;flex-direction:column;
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  background:var(--c-glass);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08),var(--sh-2);
  -webkit-backdrop-filter:blur(16px) saturate(120%);
  backdrop-filter:blur(16px) saturate(120%);
  overflow:hidden;
  transition:transform .22s cubic-bezier(.2,.7,.3,1),border-color .22s ease,box-shadow .22s ease;
}
.entry-card:hover{transform:translateY(-4px);border-color:rgba(31,182,255,.3);box-shadow:inset 0 1px 0 rgba(255,255,255,.1),var(--sh-3);}
.entry-cover{
  position:relative;width:100%;aspect-ratio:16/9;
  background:var(--c-bg-700);overflow:hidden;
}
.entry-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.entry-card:hover .entry-cover img{transform:scale(1.04);}
.entry-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,10,20,.05),rgba(6,10,20,.55));}
.entry-index{
  position:absolute;top:14px;left:16px;z-index:2;
  font-size:30px;font-weight:800;line-height:1;
  color:rgba(200,244,90,.72);
  font-variant-numeric:tabular-nums;
}
.entry-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1;position:relative;}
.entry-body::before{content:"";position:absolute;inset:0;background:rgba(6,10,20,.35);pointer-events:none;}
.entry-body>*{position:relative;z-index:1;}
.entry-title{font-size:20px;line-height:1.5;font-weight:600;}
.entry-title a{color:var(--c-text);}
.entry-title a:hover{color:var(--c-primary);}
.entry-text{font-size:15px;line-height:1.9;color:var(--c-text-2);margin:0;}
.entry-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding-top:14px;border-top:1px solid var(--c-line);
  font-size:13px;color:var(--c-text-3);
}
.entry-card-lg .entry-cover{aspect-ratio:2/1;}
.entry-card-lg .entry-title{font-size:26px;}
.entry-card-lg .entry-text{font-size:16px;}
.entry-card-lg .entry-body{padding:28px;}
.entry-card-sm .entry-cover{aspect-ratio:4/3;}
.entry-card-sm .entry-body{padding:20px;}
.entry-card-sm .entry-title{font-size:18px;}
.entry-meta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;}

.point-list{margin-top:var(--s-2);display:grid;gap:10px;}
.point-list li{
  position:relative;padding-left:24px;
  font-size:15px;color:var(--c-text-2);line-height:1.85;
}
.point-list li::before{
  content:"";position:absolute;left:0;top:12px;
  width:12px;height:2px;background:var(--c-accent);border-radius:2px;
}

/* ============ 承诺数据 ============ */
.promise-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.promise-card{
  padding:26px;
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  background:var(--c-bg-700);
  transition:transform .22s cubic-bezier(.2,.7,.3,1),border-color .22s ease,box-shadow .22s ease;
}
.promise-card:hover{transform:translateY(-4px);border-color:rgba(31,182,255,.3);box-shadow:var(--sh-2);}
.promise-num{
  font-size:34px;font-weight:800;line-height:1.1;color:var(--c-accent);
  font-variant-numeric:tabular-nums;margin-bottom:10px;
}
.promise-num span{font-size:15px;color:var(--c-text-2);font-weight:600;margin-left:4px;}
.promise-card h3{font-size:17px;margin-bottom:8px;}
.promise-card p{font-size:14px;line-height:1.85;color:var(--c-text-2);margin:0;}

/* ============ 流程 ============ */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;}
.step{
  position:relative;
  padding:24px 20px;
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  background:var(--c-glass);
  transition:transform .22s cubic-bezier(.2,.7,.3,1),border-color .22s ease;
}
.step:hover{transform:translateY(-4px);border-color:rgba(200,244,90,.4);}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:30px;height:30px;margin-bottom:12px;
  font-size:13px;font-weight:800;font-variant-numeric:tabular-nums;
  color:#0A1120;background:var(--c-accent);border-radius:var(--r-sm);
}
.step h3{font-size:16px;margin-bottom:8px;}
.step p{font-size:14px;line-height:1.8;color:var(--c-text-2);margin:0;}

/* ============ FAQ ============ */
.faq-wrap{max-width:920px;}
.faq-wrap .accordion-item{
  background:var(--c-glass);
  border:1px solid var(--c-line);
  border-radius:var(--r-md)!important;
  margin-bottom:14px;
  overflow:hidden;
  -webkit-backdrop-filter:blur(14px) saturate(120%);
  backdrop-filter:blur(14px) saturate(120%);
  transition:border-color .22s ease;
}
.faq-wrap .accordion-item:has(.accordion-button:not(.collapsed)){border-color:rgba(200,244,90,.45);}
.faq-wrap .accordion-button{
  min-height:56px;
  padding:16px 54px 16px 22px;
  font-size:15.5px;font-weight:500;color:var(--c-text);
  background:transparent;
  box-shadow:none;
  position:relative;
}
.faq-wrap .accordion-button:not(.collapsed){color:var(--c-text);background:transparent;}
.faq-wrap .accordion-button:focus{box-shadow:none;outline:2px solid var(--c-primary);outline-offset:-2px;}
.faq-wrap .accordion-button::after{display:none;}
.faq-wrap .accordion-button::before,
.faq-wrap .accordion-button::before{content:"";}
.faq-wrap .faq-sign{
  position:absolute;right:20px;top:50%;transform:translateY(-50%);
  width:16px;height:16px;
}
.faq-wrap .faq-sign::before,
.faq-wrap .faq-sign::after{
  content:"";position:absolute;left:50%;top:50%;
  background:var(--c-accent);border-radius:2px;
  transform:translate(-50%,-50%);
  transition:transform .24s ease,opacity .24s ease;
}
.faq-wrap .faq-sign::before{width:14px;height:2px;}
.faq-wrap .faq-sign::after{width:2px;height:14px;}
.faq-wrap .accordion-button:not(.collapsed) .faq-sign::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
.faq-wrap .accordion-body{
  padding:4px 22px 22px;
  font-size:15px;line-height:1.9;color:var(--c-text-2);
}

/* ============ CTA ============ */
.cta-bar{
  padding:34px;
  border:1px solid var(--c-line-strong);
  border-radius:var(--r-xl);
  background:linear-gradient(120deg,rgba(31,182,255,.10),rgba(255,255,255,.04));
  -webkit-backdrop-filter:blur(18px) saturate(120%);
  backdrop-filter:blur(18px) saturate(120%);
  box-shadow:var(--sh-2);
  display:flex;align-items:center;justify-content:space-between;gap:var(--s-4);flex-wrap:wrap;
}
.cta-bar h2{font-size:26px;line-height:1.4;margin-bottom:8px;}
.cta-bar p{margin:0;color:var(--c-text-2);font-size:15px;max-width:620px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--c-bg-900);
  border-top:1px solid var(--c-line);
  padding-top:var(--s-6);
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:var(--s-4);
  padding-bottom:var(--s-5);
}
.footer-brand p{font-size:14px;line-height:1.9;color:var(--c-text-3);margin:var(--s-3) 0 0;max-width:360px;}
.site-footer h4{font-size:15px;font-weight:700;margin-bottom:var(--s-3);}
.footer-links li,.footer-contact li{font-size:14px;line-height:1.9;color:var(--c-text-3);margin-bottom:8px;}
.footer-links a{
  color:var(--c-text-2);display:inline-block;
  transition:color .2s ease,transform .2s ease;
}
.footer-links a:hover{color:var(--c-primary);transform:translateX(2px);}
.footer-contact b{color:var(--c-text-2);font-weight:600;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:var(--s-2);flex-wrap:wrap;
  padding:20px 0 28px;border-top:1px solid var(--c-line);
  font-size:13px;color:var(--c-text-3);
}

/* ============ 移动导航 ============ */
.offcanvas.mobile-nav{
  width:82vw;max-width:360px;
  background:rgba(10,17,32,.94);
  border-left:1px solid var(--c-line);
  color:var(--c-text);
  -webkit-backdrop-filter:blur(20px) saturate(120%);
  backdrop-filter:blur(20px) saturate(120%);
}
.mobile-nav .offcanvas-header{border-bottom:1px solid var(--c-line);padding:18px 20px;}
.mobile-nav .offcanvas-title{font-size:15px;font-weight:700;}
.mobile-nav .btn-close{filter:invert(1) grayscale(1) brightness(1.6);opacity:.7;}
.mobile-nav-body{padding:18px 20px;display:flex;flex-direction:column;flex:1;}
.mobile-nav-list{display:flex;flex-direction:column;gap:6px;}
.mobile-nav-list a{
  display:flex;align-items:center;gap:12px;
  padding:14px 12px;border-radius:var(--r-sm);
  font-size:15px;color:var(--c-text-2);
  border:1px solid transparent;
}
.mobile-nav-list a i{font-size:12px;color:var(--c-text-3);font-variant-numeric:tabular-nums;width:22px;}
.mobile-nav-list a:hover,.mobile-nav-list a.active{
  color:var(--c-text);background:var(--c-glass);border-color:var(--c-line);
}
.mobile-nav-list a.active i{color:var(--c-accent);}
.mobile-cta{margin-top:auto;padding-top:var(--s-3);}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .promise-grid{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(3,1fr);}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:var(--s-3);}
  .footer-grid>div:last-child{grid-column:span 3;}
}
@media (max-width:991.98px){
  .site-header{height:68px;background:var(--c-glass);border-bottom-color:var(--c-line);-webkit-backdrop-filter:blur(16px) saturate(120%);backdrop-filter:blur(16px) saturate(120%);}
  .main-nav{display:none;}
  .icon-btn.search-btn{display:none;}
  .header-actions .btn-primary{display:none;}
  .nav-toggle{display:inline-flex;}
  .page-head{margin-top:68px;padding:52px 0 46px;}
  .cat-num{font-size:48px;}
  .page-title{font-size:34px;}
  .head-flex{gap:var(--s-3);}
  .side-rail{display:none;}
  .rail-pills{display:flex;}
  .flow-section{padding:56px 0;}
  .section-head h2{font-size:26px;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .cta-bar{padding:26px;}
  .cta-bar h2{font-size:22px;}
}
@media (max-width:767.98px){
  .container-x,.container-wide{padding-left:20px;padding-right:20px;}
  .page-title{font-size:27px;}
  .cat-num{font-size:38px;}
  .page-desc{font-size:15px;}
  .promise-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .entry-card-lg .entry-title{font-size:21px;}
  .entry-card-lg .entry-body{padding:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:1fr;gap:var(--s-3);}
  .footer-grid>div:last-child{grid-column:auto;}
  .flow-section{padding:48px 0;}
}
@media (max-width:575.98px){
  body{font-size:15px;}
  .entry-body{padding:18px;}
  .entry-card-sm .entry-body{padding:18px;}
  .entry-card-lg .entry-body{padding:18px;}
  .entry-title{font-size:17px;}
  .entry-card-lg .entry-title{font-size:19px;}
  .promise-card{padding:20px;}
  .cta-bar{padding:20px;}
  .btn{padding:11px 20px;font-size:14px;}
  .btn-sm{padding:9px 16px;}
  .brand-sub{display:none;}
}