/* roulang page: index */
:root{
  --brand:#24E0A8;
  --brand-deep:#0FBF8C;
  --violet:#7A5CFF;
  --accent:#FF7A45;
  --bg:#0B0A16;
  --card:#141223;
  --line:rgba(255,255,255,.08);
  --text:#F2F0FF;
  --muted:#A9A5C2;
  --light-bg:#F6F5FB;
  --light-text:#14121F;
  --light-muted:#5C5872;
  --light-line:rgba(20,18,31,.10);
  --r-lg:20px;
  --r-md:16px;
  --r-btn:12px;
  --shadow-dark:0 0 0 1px rgba(255,255,255,.06),0 18px 40px -24px rgba(36,224,168,.28);
  --shadow-light:0 12px 32px rgba(11,10,22,.08);
  --container:1200px;
  --sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",-apple-system,"Segoe UI",Roboto,sans-serif;
  --mono:"Inter","SFMono-Regular",Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:var(--sans);font-size:16px;line-height:1.85;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.35}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:rgba(36,224,168,.28)}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
@media (max-width:640px){.container{padding:0 16px}}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:rgba(11,10,22,.72);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid transparent;transition:background .25s ease,border-color .25s ease}
.site-header.is-scrolled{background:rgba(11,10,22,.92);border-bottom-color:var(--line)}
.nav-bar{display:flex;align-items:center;gap:22px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:26px;height:26px;border-radius:8px;background:linear-gradient(135deg,var(--brand),var(--violet));position:relative;flex:0 0 auto;box-shadow:0 0 0 1px rgba(255,255,255,.14),0 8px 20px -10px rgba(36,224,168,.8)}
.brand-mark::after{content:"";position:absolute;inset:8px;border-radius:3px;background:#0B0A16;opacity:.85}
.brand-text{font-size:17px;font-weight:800;letter-spacing:-.02em;white-space:nowrap}
.brand-text em{font-style:normal;color:var(--muted);font-weight:600;font-size:14px;margin-left:2px}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:8px;flex:1 1 auto}
.nav-link{position:relative;font-size:15px;color:var(--muted);padding:6px 0;white-space:nowrap}
.nav-link:hover{color:var(--text)}
.nav-link.is-active{color:var(--text);font-weight:600}
.nav-link.is-active::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:2px;background:var(--brand)}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.search-pill{display:flex;align-items:center;gap:8px;width:220px;height:40px;padding:0 14px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.04);transition:border-color .2s ease,background .2s ease}
.search-pill:focus-within{border-color:var(--brand);background:rgba(36,224,168,.06)}
.search-pill input{flex:1 1 auto;min-width:0;border:0;background:transparent;outline:none;font-size:14px}
.search-pill input::placeholder{color:rgba(169,165,194,.75)}
.search-pill svg{flex:0 0 auto;width:16px;height:16px;stroke:var(--muted)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .18s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;white-space:nowrap}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--brand);color:#04241A;box-shadow:0 14px 30px -16px rgba(36,224,168,.9)}
.btn-primary:hover{ box-shadow:0 18px 34px -14px rgba(36,224,168,1)}
.btn-outline{border-color:rgba(255,255,255,.22);color:var(--text);background:transparent}
.btn-outline:hover{border-color:var(--brand);color:var(--brand)}
.btn-ghost{color:var(--muted);height:40px;padding:0 16px}
.btn-ghost:hover{color:var(--text)}
.btn-light{background:#FFFFFF;color:#14121F}
.btn-light:hover{box-shadow:0 16px 32px -18px rgba(11,10,22,.6)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.nav-burger{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.04);align-items:center;justify-content:center;cursor:pointer}
.nav-burger span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;position:relative}
.nav-burger span::before,.nav-burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px}
.nav-burger span::before{top:-6px}
.nav-burger span::after{top:6px}
.mobile-panel{position:fixed;inset:0;z-index:90;background:rgba(11,10,22,.98);backdrop-filter:blur(10px);padding:88px 24px 96px;display:none;flex-direction:column;gap:8px;overflow-y:auto}
.mobile-panel.is-open{display:flex}
.mobile-panel a.m-link{display:flex;align-items:center;justify-content:space-between;padding:16px 4px;font-size:18px;font-weight:600;border-bottom:1px solid var(--line)}
.mobile-panel a.m-link span{color:var(--muted);font-size:13px}
.mobile-close{position:absolute;top:16px;right:20px;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.05);color:var(--text);cursor:pointer}
.mobile-cta{position:fixed;left:0;right:0;bottom:0;z-index:95;padding:12px 16px;background:linear-gradient(100deg,var(--brand),var(--brand-deep));display:none}
.mobile-cta a{display:flex;align-items:center;justify-content:center;height:48px;border-radius:12px;background:#062B20;color:#CFFAF0;font-weight:700}
@media (max-width:1023px){
  .nav-links{display:none}
  .search-pill{display:none}
  .nav-actions .btn-outline{display:none}
  .nav-burger{display:inline-flex}
  .nav-bar{height:60px;justify-content:space-between}
  .mobile-cta{display:block}
}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:88px 0 96px;border-bottom:1px solid var(--line)}
.hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center;opacity:.30}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,10,22,.72) 0%,rgba(11,10,22,.94) 62%,var(--bg) 100%)}
.hero-dots{position:absolute;inset:0;background-image:radial-gradient(rgba(36,224,168,.22) 1px,transparent 1px);background-size:22px 22px;opacity:.4;-webkit-mask-image:radial-gradient(ellipse at 18% 30%,#000 0%,transparent 62%);mask-image:radial-gradient(ellipse at 18% 30%,#000 0%,transparent 62%)}
.hero-glow{position:absolute;top:-160px;right:-120px;width:560px;height:560px;border-radius:50%;background:radial-gradient(circle,rgba(122,92,255,.34),transparent 66%);filter:blur(10px)}
.hero-inner{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.08em;text-transform:none;color:var(--brand);border:1px solid rgba(36,224,168,.32);background:rgba(36,224,168,.10);padding:5px 14px;border-radius:999px}
.hero h1{font-size:clamp(30px,4vw,48px);line-height:1.24;margin:20px 0 18px;max-width:14em}
.hero h1 b{color:var(--brand)}
.hero-sub{color:var(--muted);font-size:17px;max-width:32em}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin:32px 0 26px}
.trust-row{display:flex;flex-wrap:wrap;gap:10px}
.trust-badge{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);border:1px solid var(--line);background:rgba(255,255,255,.04);border-radius:999px;padding:7px 14px}
.trust-badge i{width:6px;height:6px;border-radius:50%;background:var(--brand);flex:0 0 auto}
.hero-media{position:relative}
.hero-media img{border-radius:var(--r-lg);aspect-ratio:4/3;object-fit:cover;box-shadow:var(--shadow-dark);background:linear-gradient(135deg,rgba(36,224,168,.16),rgba(122,92,255,.16))}
.float-card{position:absolute;left:-18px;bottom:26px;width:250px;background:rgba(20,18,35,.94);border:1px solid var(--line);border-radius:var(--r-md);padding:16px 18px;box-shadow:var(--shadow-dark)}
.float-card .fc-label{font-size:12px;color:var(--muted);letter-spacing:.06em}
.float-card .fc-value{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:26px;font-weight:700;color:var(--brand);letter-spacing:-.02em;margin-top:2px}
.float-card .fc-note{font-size:12px;color:var(--muted);margin-top:6px}
.hero-cut{position:absolute;right:0;bottom:0;width:220px;height:120px;background:linear-gradient(100deg,rgba(36,224,168,.16),rgba(122,92,255,.22));clip-path:polygon(100% 0,100% 100%,0 100%);pointer-events:none}
@media (max-width:1023px){
  .hero{padding:56px 0 64px}
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .hero-media{order:2}
  .float-card{left:auto;right:12px;bottom:12px;width:220px}
}
@media (max-width:640px){
  .hero h1{font-size:28px}
  .hero-cta .btn{flex:1 1 100%}
}

/* ---------- section base ---------- */
.section{position:relative;padding:96px 0}
.section-light{background:var(--light-bg);color:var(--light-text)}
.section-dark{background:var(--bg);color:var(--text)}
.sec-head{max-width:36em;margin-bottom:44px}
.sec-head .eyebrow{margin-bottom:16px}
.sec-head h2{font-size:clamp(24px,2.6vw,34px);color:inherit}
.section-light .sec-head h2{color:var(--light-text)}
.sec-head p{color:var(--muted);margin-top:14px;font-size:16px}
.section-light .sec-head p{color:var(--light-muted)}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.sec-head-row .sec-head{margin-bottom:0}
.text-link{color:var(--brand);font-weight:600;font-size:14px;border-bottom:2px solid transparent;transition:border-color .2s ease,color .2s ease}
.text-link:hover{border-bottom-color:var(--brand)}
.section-light .text-link{color:#0F9C74}
.section-light .text-link:hover{border-bottom-color:#0F9C74}
@media (max-width:640px){
  .section{padding:60px 0}
  .sec-head{margin-bottom:32px}
  .sec-head-row{flex-direction:column;align-items:flex-start;gap:14px}
}

/* ---------- bento ---------- */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.bento-main{grid-column:span 6;background:#FFFFFF;border:1px solid var(--light-line);border-radius:var(--r-lg);padding:24px;box-shadow:var(--shadow-light);display:flex;flex-direction:column;gap:18px}
.bento-main img{border-radius:var(--r-md);aspect-ratio:16/9;object-fit:cover;background:linear-gradient(135deg,rgba(36,224,168,.14),rgba(122,92,255,.16))}
.bento-main h3{font-size:22px;color:var(--light-text)}
.bento-main p{color:var(--light-muted);font-size:15px}
.bento-side{grid-column:span 6;display:grid;grid-template-columns:1fr 1fr;gap:24px}
.mini-card{background:#FFFFFF;border:1px solid var(--light-line);border-radius:var(--r-md);padding:22px;box-shadow:var(--shadow-light);transition:border-color .2s ease,transform .2s ease;display:flex;flex-direction:column;gap:10px}
.mini-card:hover{border-color:rgba(36,224,168,.6);transform:translateY(-2px)}
.mini-icon{width:40px;height:40px;border-radius:12px;background:rgba(122,92,255,.12);color:var(--violet);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px}
.mini-card h3{font-size:17px;color:var(--light-text)}
.mini-card p{font-size:14px;color:var(--light-muted)}
@media (max-width:1023px){
  .bento-main{grid-column:span 12}
  .bento-side{grid-column:span 12}
}
@media (max-width:640px){
  .bento-side{grid-template-columns:1fr}
}

/* ---------- stats ---------- */
.stats-section{overflow:hidden}
.stats-section::before{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(36,224,168,.10),rgba(122,92,255,.12) 58%,transparent 88%)}
.stats-section::after{content:"";position:absolute;left:-10%;top:50%;width:120%;height:2px;background:linear-gradient(90deg,transparent,rgba(36,224,168,.5),rgba(122,92,255,.4),transparent);transform:rotate(-3deg);opacity:.5;pointer-events:none}
.stats-grid{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat{background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);padding:26px 22px;text-align:center;box-shadow:var(--shadow-dark)}
.stat strong{display:block;font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:34px;font-weight:700;color:var(--brand);letter-spacing:-.03em;line-height:1.2}
.stat strong span{font-size:16px;color:var(--accent);margin-left:2px}
.stat p{color:var(--muted);font-size:14px;margin-top:8px}
.stats-note{position:relative;color:var(--muted);font-size:13px;margin-top:22px;text-align:center}
@media (max-width:1023px){.stats-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:520px){.stats-grid{grid-template-columns:1fr}}

/* ---------- rail ---------- */
.rail-wrap{position:relative}
.rail{display:flex;gap:24px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:12px;scrollbar-width:none}
.rail::-webkit-scrollbar{display:none}
.rail-card{flex:0 0 30%;scroll-snap-align:start;background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--shadow-dark);transition:border-color .2s ease,transform .2s ease}
.rail-card:hover{border-color:rgba(36,224,168,.55);transform:translateY(-2px)}
.rail-card img{aspect-ratio:16/9;object-fit:cover;width:100%;background:linear-gradient(135deg,rgba(36,224,168,.14),rgba(122,92,255,.18))}
.rail-body{padding:20px;display:flex;flex-direction:column;gap:10px}
.rail-body h3{font-size:17px}
.rail-body p{color:var(--muted);font-size:14px}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;letter-spacing:.08em;color:#C3B6FF;background:rgba(122,92,255,.14);border-radius:999px;padding:4px 12px;width:max-content}
.badge-accent{color:#FFD3C2;background:rgba(255,122,69,.16)}
.rail-next{position:absolute;right:-8px;top:38%;width:48px;height:48px;border-radius:50%;border:1px solid var(--line);background:rgba(20,18,35,.94);color:var(--text);font-size:18px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:border-color .2s ease,transform .2s ease}
.rail-next:hover{border-color:var(--brand);color:var(--brand);transform:translateX(2px)}
@media (max-width:1023px){
  .rail-card{flex:0 0 46%}
  .rail-next{display:none}
}
@media (max-width:640px){
  .rail-card{flex:0 0 84%}
}

/* ---------- timeline ---------- */
.timeline{position:relative;margin-top:8px;padding-left:34px}
.timeline::before{content:"";position:absolute;left:14px;top:10px;bottom:10px;width:2px;background:linear-gradient(180deg,rgba(15,156,116,.6),rgba(122,92,255,.45))}
.tl-item{position:relative;padding:0 0 34px 26px}
.tl-item:last-child{padding-bottom:0}
.tl-num{position:absolute;left:-34px;top:0;width:30px;height:30px;border-radius:10px;background:#FFFFFF;border:1px solid rgba(15,156,116,.4);color:#0F9C74;font-family:var(--mono);font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center}
.tl-item h3{font-size:19px;color:var(--light-text)}
.tl-item p{color:var(--light-muted);font-size:15px;margin-top:8px;max-width:44em}
.tl-thumb{width:100%;max-width:220px;aspect-ratio:16/9;object-fit:cover;border-radius:12px;margin-top:14px;background:linear-gradient(135deg,rgba(36,224,168,.14),rgba(122,92,255,.16))}

/* ---------- cms list ---------- */
.cms-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:24px}
.cms-main{display:flex;flex-direction:column;gap:16px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:22px;box-shadow:var(--shadow-dark);transition:border-color .2s ease,transform .2s ease}
.cms-main:hover{border-color:rgba(36,224,168,.55);transform:translateY(-2px)}
.cms-main img{border-radius:var(--r-md);aspect-ratio:16/9;object-fit:cover;background:linear-gradient(135deg,rgba(36,224,168,.14),rgba(122,92,255,.18))}
.cms-main h3{font-size:22px;line-height:1.42}
.cms-main p{color:var(--muted);font-size:15px}
.cms-meta{display:flex;align-items:center;gap:14px;color:var(--muted);font-size:13px}
.cms-list{display:flex;flex-direction:column;gap:12px}
.cms-row{display:flex;align-items:center;gap:16px;padding:14px 18px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);transition:border-color .2s ease,transform .2s ease}
.cms-row:hover{border-color:rgba(36,224,168,.5);transform:translateX(2px)}
.cms-row .row-main{flex:1 1 auto;min-width:0}
.cms-row h4{font-size:15px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.cms-row .row-meta{color:var(--muted);font-size:12.5px;margin-top:2px}
.cms-row .row-arrow{color:var(--muted);flex:0 0 auto;transition:transform .2s ease,color .2s ease}
.cms-row:hover .row-arrow{transform:translateX(2px);color:var(--brand)}
.cms-empty{display:flex;flex-direction:column;align-items:center;gap:12px;padding:56px 20px;border:1px dashed var(--line);border-radius:var(--r-lg);background:rgba(255,255,255,.02);text-align:center}
.cms-empty .empty-icon{width:52px;height:52px;border-radius:16px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--brand);background:rgba(36,224,168,.08)}
.cms-empty p{color:var(--muted);font-size:15px}
.cms-foot{display:flex;justify-content:center;margin-top:36px}
@media (max-width:1023px){
  .cms-grid{grid-template-columns:1fr}
}

/* ---------- faq ---------- */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:40px;align-items:start}
.faq-aside .mini-contact{background:#FFFFFF;border:1px solid var(--light-line);border-radius:var(--r-md);padding:22px;box-shadow:var(--shadow-light);margin-top:24px}
.faq-aside .mini-contact h4{font-size:16px;color:var(--light-text)}
.faq-aside .mini-contact p{font-size:14px;color:var(--light-muted);margin:8px 0 16px}
.faq-list{display:flex;flex-direction:column;gap:14px}
.faq-item{background:#FFFFFF;border:1px solid var(--light-line);border-radius:var(--r-md);box-shadow:var(--shadow-light);overflow:hidden;transition:border-color .2s ease}
.faq-item.is-open{border-color:rgba(36,224,168,.65)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:20px 22px;background:transparent;border:0;text-align:left;font-size:16px;font-weight:600;color:var(--light-text);cursor:pointer}
.faq-q span.icon{flex:0 0 auto;width:26px;height:26px;border-radius:50%;border:1px solid rgba(20,18,31,.14);display:flex;align-items:center;justify-content:center;font-size:14px;color:#0F9C74;transition:transform .24s ease}
.faq-item.is-open .faq-q span.icon{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease}
.faq-a p{padding:0 22px 20px;color:var(--light-muted);font-size:15px}
@media (max-width:1023px){
  .faq-layout{grid-template-columns:1fr;gap:28px}
}

/* ---------- cta + form ---------- */
.cta-section{position:relative;overflow:hidden;background:var(--light-bg);padding:0 0 96px}
.cta-band{background:linear-gradient(100deg,#1CC796,#4E86FF 62%,#7A5CFF);border-radius:var(--r-lg);padding:36px 40px;display:flex;align-items:center;justify-content:space-between;gap:28px;color:#08131A;box-shadow:0 24px 50px -30px rgba(36,224,168,.8);margin-top:-52px;position:relative}
.cta-band h2{font-size:clamp(20px,2.2vw,28px);color:#071A16}
.cta-band p{color:rgba(7,26,22,.78);font-size:15px;margin-top:8px;max-width:34em}
.form-card{background:#FFFFFF;border:1px solid var(--light-line);border-radius:var(--r-lg);padding:30px;box-shadow:var(--shadow-light);margin-top:44px}
.form-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--light-text);margin-bottom:8px}
.field input,.field textarea{width:100%;border:1px solid rgba(20,18,31,.16);border-radius:12px;background:#FBFAFF;padding:12px 14px;font-size:15px;color:var(--light-text);outline:none;transition:border-color .2s ease,box-shadow .2s ease}
.field textarea{min-height:96px;resize:vertical}
.field input:focus,.field textarea:focus{border-color:#0FBF8C;box-shadow:0 0 0 3px rgba(36,224,168,.22)}
.field .hint{font-size:12.5px;color:var(--light-muted);margin-top:6px}
.form-actions{display:flex;align-items:center;gap:18px;margin-top:24px;flex-wrap:wrap}
.form-actions .msg{font-size:14px;color:#0F9C74}
@media (max-width:1023px){
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px 24px;margin-top:-36px}
  .form-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  .cta-section{padding-bottom:60px}
  .form-grid{grid-template-columns:1fr}
  .form-card{padding:22px}
}

/* ---------- footer ---------- */
.site-footer{background:var(--bg);border-top:1px solid var(--line);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:32px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{color:var(--muted);font-size:14px;max-width:26em}
.footer-col h4{font-size:14px;letter-spacing:.06em;color:var(--text);margin-bottom:16px}
.footer-col li{margin-bottom:10px}
.footer-col a{color:var(--muted);font-size:14px}
.footer-col a:hover{color:var(--brand)}
.footer-col .plain{color:var(--muted);font-size:14px;display:block}
.footer-bottom{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;border-top:1px solid var(--line);margin-top:52px;padding:22px 0 28px;color:var(--muted);font-size:12px}
.footer-bottom a{color:var(--muted)}
.footer-bottom a:hover{color:var(--brand)}
@media (max-width:1023px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:640px){.footer-grid{grid-template-columns:1fr;gap:28px}}

/* roulang page: article */
:root{
    --brand:#24E0A8;
    --brand-deep:#0E9C74;
    --brand-2:#7A5CFF;
    --accent:#FF7A45;
    --bg:#0B0A16;
    --card:#141223;
    --line:rgba(255,255,255,.08);
    --text:#F2F0FF;
    --text-2:#A9A5C2;
    --light:#F6F5FB;
    --light-card:#FFFFFF;
    --light-text:#14121F;
    --light-text-2:#5A5670;
    --light-line:rgba(20,18,31,.10);
    --radius-lg:20px;
    --radius:16px;
    --radius-sm:12px;
    --shadow-dark:0 0 0 1px rgba(255,255,255,.06), 0 18px 40px -24px rgba(36,224,168,.28);
    --shadow-light:0 12px 32px rgba(11,10,22,.08);
    --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",sans-serif;
    --font-num:"Inter","Helvetica Neue",Arial,sans-serif;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg);
    color:var(--text);
    font-family:var(--font-cn);
    font-size:16px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button,input,textarea{font-family:inherit;font-size:inherit;color:inherit;}
  button{cursor:pointer;border:0;background:none;}
  ul,ol{margin:0;padding:0;}
  h1,h2,h3,h4,p{margin:0;}
  :focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(11,10,22,.72);
    border-bottom:1px solid transparent;
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    transition:background .25s ease,border-color .25s ease;
  }
  .site-header.is-scrolled{background:rgba(11,10,22,.92);border-bottom-color:var(--line);}
  .nav-bar{display:flex;align-items:center;gap:28px;height:68px;}
  .brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
  .brand-mark{
    width:14px;height:14px;border-radius:4px;
    background:linear-gradient(135deg,var(--brand),var(--brand-2));
    box-shadow:0 0 18px rgba(36,224,168,.55);
  }
  .brand-text{font-size:18px;font-weight:800;letter-spacing:-.02em;}
  .brand-text em{font-style:normal;font-weight:600;color:var(--text-2);margin-left:2px;font-size:15px;}
  .nav-links{display:flex;align-items:center;gap:26px;margin-left:8px;}
  .nav-link{
    position:relative;font-size:15px;color:var(--text-2);
    padding:6px 0;transition:color .2s ease;
  }
  .nav-link::after{
    content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:2px;
    background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
  }
  .nav-link:hover{color:var(--text);}
  .nav-link:hover::after{transform:scaleX(1);background:var(--accent);}
  .nav-link.is-active{color:var(--brand);}
  .nav-link.is-active::after{transform:scaleX(1);}
  .nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
  .search-pill{
    display:flex;align-items:center;gap:8px;
    width:222px;height:40px;padding:0 14px;
    border:1px solid var(--line);border-radius:999px;
    background:rgba(255,255,255,.04);
    transition:border-color .2s ease,background .2s ease;
  }
  .search-pill:focus-within{border-color:var(--brand);background:rgba(36,224,168,.08);}
  .search-pill svg{width:16px;height:16px;stroke:var(--text-2);flex:0 0 auto;}
  .search-pill input{flex:1;min-width:0;background:none;border:0;outline:none;font-size:14px;color:var(--text);}
  .search-pill input::placeholder{color:#6F6B85;}
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:6px;
    min-height:42px;padding:0 20px;border-radius:var(--radius-sm);
    font-size:15px;font-weight:600;letter-spacing:.01em;
    transition:transform .18s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
  }
  .btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
  .btn-primary{
    background:linear-gradient(135deg,var(--brand),#1CC294);color:#04231A;
    box-shadow:0 10px 26px -14px rgba(36,224,168,.85);
  }
  .btn-primary:hover{transform:translateY(-1px);box-shadow:0 16px 32px -14px rgba(36,224,168,.95);}
  .btn-primary:active{transform:translateY(1px);}
  .btn-ghost{
    border:1px solid var(--line);color:var(--text);background:rgba(255,255,255,.02);
  }
  .btn-ghost:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);}
  .btn-light{background:#FFFFFF;color:var(--light-text);box-shadow:0 10px 24px rgba(6,8,20,.24);}
  .btn-light:hover{transform:translateY(-1px);}
  .btn-outline-light{border:1px solid rgba(255,255,255,.28);color:#fff;}
  .btn-outline-light:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);}
  .nav-burger{
    display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
    align-items:center;justify-content:center;
  }
  .nav-burger span{position:relative;width:18px;height:2px;border-radius:2px;background:var(--text);}
  .nav-burger span::before,.nav-burger span::after{
    content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--text);
  }
  .nav-burger span::before{top:-6px;}
  .nav-burger span::after{top:6px;}
  .nav-drawer{
    position:fixed;inset:60px 0 0 0;z-index:55;
    background:rgba(11,10,22,.98);
    padding:24px;display:flex;flex-direction:column;gap:6px;
    opacity:0;visibility:hidden;transform:translateY(-8px);
    transition:opacity .24s ease,transform .24s ease,visibility .24s ease;
  }
  .nav-drawer.is-open{opacity:1;visibility:visible;transform:translateY(0);}
  .nav-drawer a{
    padding:14px 16px;border-radius:var(--radius-sm);font-size:16px;color:var(--text);
    border:1px solid transparent;
  }
  .nav-drawer a:hover{border-color:var(--line);background:rgba(255,255,255,.03);}
  .drawer-cta{margin-top:auto;color:#04231A;font-weight:700;}
  body.drawer-open{overflow:hidden;}

  .breadcrumb-bar{border-bottom:1px solid var(--line);background:var(--bg);}
  .breadcrumb{
    display:flex;flex-wrap:wrap;align-items:center;gap:8px;
    padding:14px 0;font-size:13px;color:var(--text-2);
  }
  .breadcrumb a{color:var(--text-2);transition:color .2s ease;}
  .breadcrumb a:hover{color:var(--brand);}
  .breadcrumb .sep{color:#4C4865;}
  .breadcrumb .crumb-current{
    color:var(--text);max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
  }

  .article-hero{
    position:relative;overflow:hidden;
    padding:56px 0 64px;
    background:
      radial-gradient(circle at 82% 12%, rgba(122,92,255,.30), transparent 55%),
      radial-gradient(circle at 12% 88%, rgba(36,224,168,.22), transparent 52%),
      var(--bg);
  }
  .article-hero::before{
    content:"";position:absolute;inset:0;
    background-image:radial-gradient(rgba(255,255,255,.09) 1px, transparent 1px);
    background-size:26px 26px;
    mask-image:radial-gradient(circle at 30% 30%, #000, transparent 72%);
    -webkit-mask-image:radial-gradient(circle at 30% 30%, #000, transparent 72%);
    pointer-events:none;
  }
  .article-hero-inner{position:relative;max-width:900px;}
  .badge{
    display:inline-flex;align-items:center;gap:6px;
    height:28px;padding:0 12px;border-radius:999px;
    font-size:12px;letter-spacing:.08em;font-weight:600;
    background:rgba(122,92,255,.14);color:#B9A9FF;
  }
  .badge-latest{background:rgba(255,122,69,.16);color:#FFB394;}
  .badge-line{border:1px solid var(--line);background:transparent;color:var(--text-2);}
  .article-hero h1{
    margin:20px 0 0;font-size:40px;line-height:1.28;font-weight:800;letter-spacing:-.02em;
  }
  .meta-row{
    display:flex;flex-wrap:wrap;align-items:center;gap:18px;
    margin-top:22px;font-size:13px;color:var(--text-2);
  }
  .meta-row span{display:inline-flex;align-items:center;gap:7px;}
  .meta-dot{width:6px;height:6px;border-radius:50%;background:var(--brand);}

  .article-section{background:var(--light);color:var(--light-text);padding:64px 0 88px;}
  .article-layout{display:grid;grid-template-columns:1fr;gap:40px;}
  .article-main{min-width:0;}
  .article-body{
    max-width:780px;
    font-size:16.5px;line-height:1.9;color:#2A2740;
    overflow-wrap:break-word;word-break:break-word;
  }
  .article-body > * + *{margin-top:22px;}
  .article-body h2{
    position:relative;padding-left:16px;margin-top:44px;
    font-size:24px;line-height:1.5;font-weight:800;letter-spacing:-.01em;color:var(--light-text);
  }
  .article-body h2::before{
    content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:3px;border-radius:2px;
    background:linear-gradient(180deg,var(--brand),var(--brand-2));
  }
  .article-body h3{
    margin-top:32px;font-size:19px;font-weight:700;color:var(--light-text);
  }
  .article-body p{color:#39364F;}
  .article-body strong{color:var(--light-text);}
  .article-body a{color:var(--brand-deep);border-bottom:2px solid rgba(14,156,116,.24);}
  .article-body a:hover{color:var(--brand-deep);border-bottom-color:var(--brand-deep);}
  .article-body ul,.article-body ol{margin-top:18px;padding-left:0;}
  .article-body ul{list-style:none;}
  .article-body ul li{position:relative;padding-left:24px;margin-top:10px;}
  .article-body ul li::before{
    content:"";position:absolute;left:5px;top:.72em;width:7px;height:7px;border-radius:50%;
    background:var(--brand);
  }
  .article-body ol{list-style:none;counter-reset:li;}
  .article-body ol li{position:relative;padding-left:34px;margin-top:10px;counter-increment:li;}
  .article-body ol li::before{
    content:counter(li);position:absolute;left:0;top:3px;
    width:22px;height:22px;border-radius:8px;
    display:flex;align-items:center;justify-content:center;
    font-family:var(--font-num);font-size:12px;font-weight:700;
    color:#04231A;background:rgba(36,224,168,.55);
  }
  .article-body blockquote{
    margin:26px 0;padding:18px 22px;border-left:3px solid var(--brand-2);
    background:rgba(122,92,255,.08);border-radius:0 var(--radius-sm) var(--radius-sm) 0;
    color:#3B3856;
  }
  .article-body blockquote p{margin:0;color:#3B3856;}
  .article-body img{border-radius:12px;margin:26px auto;}
  .article-body figure{margin:26px 0;}
  .article-body figcaption{
    margin-top:10px;text-align:center;font-size:13px;color:var(--light-text-2);
  }
  .article-body table{
    display:block;width:100%;max-width:100%;overflow-x:auto;
    border-collapse:collapse;font-size:14.5px;
    border:1px solid var(--light-line);border-radius:var(--radius-sm);
  }
  .article-body th,.article-body td{
    padding:12px 14px;border-bottom:1px solid var(--light-line);text-align:left;white-space:nowrap;
  }
  .article-body th{background:#EDEBF6;font-weight:700;color:var(--light-text);}
  .article-body pre{
    overflow-x:auto;padding:16px 18px;border-radius:var(--radius-sm);
    background:var(--card);color:var(--text);font-size:14px;line-height:1.7;
  }
  .article-body code{
    font-family:var(--font-num);font-size:14px;
    background:rgba(122,92,255,.12);padding:2px 6px;border-radius:6px;
  }
  .article-body pre code{background:none;padding:0;color:inherit;}

  .empty-state{
    max-width:780px;padding:48px 28px;text-align:center;
    background:var(--light-card);border:1px solid var(--light-line);
    border-radius:var(--radius);box-shadow:var(--shadow-light);
  }
  .empty-state .empty-title{font-size:20px;font-weight:800;color:var(--light-text);}
  .empty-state .empty-desc{margin:12px 0 22px;font-size:15px;color:var(--light-text-2);}

  .article-side{display:flex;flex-direction:column;gap:20px;}
  .side-card{
    padding:22px;background:var(--light-card);
    border:1px solid var(--light-line);border-radius:var(--radius);
    box-shadow:var(--shadow-light);
  }
  .side-card h3{
    font-size:15px;font-weight:800;color:var(--light-text);letter-spacing:-.01em;
    display:flex;align-items:center;gap:8px;
  }
  .side-card h3::before{
    content:"";width:8px;height:8px;border-radius:3px;
    background:linear-gradient(135deg,var(--brand),var(--brand-2));
  }
  .toc-list{margin-top:14px;display:flex;flex-direction:column;gap:2px;}
  .toc-list a{
    display:flex;align-items:center;justify-content:space-between;gap:10px;
    padding:9px 10px;border-radius:10px;font-size:14px;color:#3F3B58;
    border:1px solid transparent;transition:background .2s ease,color .2s ease,border-color .2s ease;
  }
  .toc-list a span:last-child{transition:transform .2s ease;color:#8A86A2;}
  .toc-list a:hover{background:rgba(36,224,168,.10);color:var(--light-text);border-color:rgba(36,224,168,.32);}
  .toc-list a:hover span:last-child{transform:translateX(2px);color:var(--brand-deep);}
  .side-links{margin-top:14px;display:flex;flex-direction:column;gap:12px;}
  .side-link{
    display:block;padding:14px 16px;border-radius:var(--radius-sm);
    background:#F1EFF9;border:1px solid transparent;
    transition:border-color .2s ease,background .2s ease,transform .2s ease;
  }
  .side-link:hover{border-color:var(--brand);background:#fff;transform:translateY(-1px);}
  .side-link strong{display:block;font-size:14.5px;font-weight:700;color:var(--light-text);
    overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
  .side-link em{font-style:normal;display:block;margin-top:6px;font-size:12.5px;color:var(--light-text-2);}
  .side-contact p{margin-top:12px;font-size:13.5px;color:var(--light-text-2);line-height:1.75;}
  .side-contact .btn{margin-top:16px;width:100%;}

  .article-foot{margin-top:48px;max-width:780px;}
  .tag-row{display:flex;flex-wrap:wrap;gap:10px;}
  .tag{
    display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
    font-size:13px;color:#4A4568;background:#fff;border:1px solid var(--light-line);
    transition:border-color .2s ease,color .2s ease;
  }
  .tag:hover{border-color:var(--brand);color:var(--brand-deep);}
  .neighbor-grid{display:grid;grid-template-columns:1fr;gap:16px;margin-top:28px;}
  .neighbor{
    display:block;padding:20px;border-radius:var(--radius);
    background:#fff;border:1px solid var(--light-line);box-shadow:var(--shadow-light);
    transition:border-color .2s ease,transform .2s ease;
  }
  .neighbor:hover{border-color:var(--brand);transform:translateY(-2px);}
  .neighbor em{font-style:normal;font-size:12px;letter-spacing:.08em;color:#7C7796;}
  .neighbor strong{display:block;margin-top:8px;font-size:16px;color:var(--light-text);}
  .neighbor span{display:block;margin-top:6px;font-size:13.5px;color:var(--light-text-2);
    overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
  .back-row{margin-top:26px;display:flex;flex-wrap:wrap;gap:12px;}

  .cta-band{
    background:linear-gradient(100deg,rgba(36,224,168,.94),rgba(122,92,255,.92));
    color:#08131A;
  }
  .cta-band-inner{
    display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
    padding:44px 0;
  }
  .cta-band h2{font-size:26px;font-weight:800;letter-spacing:-.02em;color:#06211A;}
  .cta-band p{margin-top:10px;font-size:15px;color:rgba(6,26,22,.78);max-width:56ch;}

  .faq-section{background:var(--light);color:var(--light-text);padding:72px 0 88px;}
  .section-head{max-width:720px;}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:12px;letter-spacing:.12em;font-weight:700;color:var(--brand-deep);
  }
  .section-head h2{margin-top:14px;font-size:30px;font-weight:800;letter-spacing:-.02em;color:var(--light-text);}
  .section-head p{margin-top:12px;font-size:15.5px;color:var(--light-text-2);}
  .faq-list{margin-top:34px;display:flex;flex-direction:column;gap:14px;max-width:900px;}
  .faq-item{
    background:#fff;border:1px solid var(--light-line);border-radius:var(--radius);
    box-shadow:var(--shadow-light);overflow:hidden;
  }
  .faq-item[open]{border-color:rgba(36,224,168,.5);}
  .faq-item summary{
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:20px 22px;font-size:16px;font-weight:700;color:var(--light-text);
    cursor:pointer;list-style:none;
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary .chev{
    flex:0 0 auto;width:26px;height:26px;border-radius:50%;
    display:flex;align-items:center;justify-content:center;
    background:rgba(122,92,255,.14);color:#5B45D6;font-size:12px;
    transition:transform .24s ease;
  }
  .faq-item[open] summary .chev{transform:rotate(180deg);}
  .faq-item .faq-body{padding:0 22px 20px;font-size:15px;color:var(--light-text-2);}

  .site-footer{background:var(--bg);border-top:1px solid var(--line);padding:64px 0 28px;color:var(--text-2);}
  .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;}
  .footer-brand .brand{margin-bottom:16px;}
  .footer-brand p{font-size:14px;line-height:1.85;max-width:34ch;}
  .footer-col h4{font-size:14px;font-weight:800;color:var(--text);margin-bottom:16px;letter-spacing:.02em;}
  .footer-col ul{display:flex;flex-direction:column;gap:10px;}
  .footer-col a{font-size:14px;color:var(--text-2);transition:color .2s ease;}
  .footer-col a:hover{color:var(--brand);}
  .footer-col .plain{display:block;font-size:14px;margin-bottom:8px;}
  .footer-bottom{
    margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
    display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
    font-size:12px;color:#6F6B85;
  }

  @media (min-width:1024px){
    .article-layout{grid-template-columns:minmax(0,780px) 300px;justify-content:center;gap:48px;}
    .article-side{position:sticky;top:92px;align-self:start;}
    .neighbor-grid{grid-template-columns:1fr 1fr;}
  }
  @media (max-width:1023px){
    .nav-links,.search-pill{display:none;}
    .nav-burger{display:inline-flex;}
    .nav-bar{height:60px;gap:14px;}
    .brand-text{font-size:16px;}
    .brand-text em{font-size:13px;}
    .article-hero h1{font-size:30px;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  }
  @media (max-width:640px){
    .container{padding:0 16px;}
    .article-hero{padding:36px 0 44px;}
    .article-hero h1{font-size:25px;}
    .article-section{padding:44px 0 60px;}
    .article-body{font-size:16px;}
    .article-body h2{font-size:21px;}
    .section-head h2{font-size:23px;}
    .cta-band h2{font-size:21px;}
    .cta-band-inner{padding:34px 0;}
    .btn{min-height:44px;}
    .footer-grid{grid-template-columns:1fr;}
    .nav-actions .btn-ghost{display:none;}
  }

/* roulang page: category1 */
:root{
    --primary:#24E0A8;
    --primary-dim:rgba(36,224,168,.14);
    --violet:#7A5CFF;
    --orange:#FF7A45;
    --bg:#0B0A16;
    --card:#141223;
    --line:rgba(255,255,255,.08);
    --text:#F2F0FF;
    --muted:#A9A5C2;
    --light:#F6F5FB;
    --light-text:#14121F;
    --radius-lg:20px;
    --radius:16px;
    --radius-btn:12px;
    --shadow-dark:0 0 0 1px rgba(255,255,255,.06),0 18px 40px -24px rgba(36,224,168,.28);
    --shadow-light:0 12px 32px rgba(11,10,22,.08);
    --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",-apple-system,"Segoe UI",Roboto,sans-serif;
    --font-num:"Inter","SFMono-Regular",ui-monospace,"Courier New",monospace;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font-cn);font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased}
  img{display:block;max-width:100%;height:auto}
  a{color:inherit;text-decoration:none}
  button,input,textarea{font:inherit;color:inherit}
  button{background:none;border:0;cursor:pointer}
  ul,ol{margin:0;padding:0;list-style:none}
  h1,h2,h3,h4,p{margin:0}
  :focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}
  ::selection{background:rgba(36,224,168,.28)}

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

  /* ---------- 头部导航 ---------- */
  .site-header{position:sticky;top:0;z-index:60;background:rgba(11,10,22,.9);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);transition:background .22s,box-shadow .22s}
  .site-header.is-scrolled{background:rgba(11,10,22,.98);box-shadow:0 14px 34px -26px rgba(0,0,0,.95)}
  .nav-bar{display:flex;align-items:center;gap:22px;min-height:68px}
  .brand{display:inline-flex;align-items:center;gap:10px;flex:none}
  .brand-mark{width:14px;height:14px;border-radius:4px;background:linear-gradient(135deg,var(--primary),var(--violet));box-shadow:0 0 18px rgba(36,224,168,.55)}
  .brand-text{font-size:17px;font-weight:800;letter-spacing:-.02em;color:#fff;white-space:nowrap}
  .brand-text em{font-style:normal;font-weight:600;color:var(--muted);margin-left:2px}
  .nav-links{display:flex;align-items:center;gap:26px}
  .nav-link{position:relative;padding:6px 0;font-size:15px;color:var(--muted);white-space:nowrap;transition:color .2s}
  .nav-link::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform .22s}
  .nav-link:hover{color:#fff}
  .nav-link:hover::after{transform:scaleX(1)}
  .nav-link.is-active{color:#fff}
  .nav-link.is-active::after{transform:scaleX(1)}
  .nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
  .search-pill{display:flex;align-items:center;gap:8px;width:220px;height:40px;padding:0 14px;border-radius:999px;background:rgba(255,255,255,.04);border:1px solid var(--line);transition:border-color .2s,box-shadow .2s}
  .search-pill svg{width:16px;height:16px;flex:none;stroke:var(--muted);fill:none;stroke-width:2}
  .search-pill input{width:100%;border:0;background:transparent;outline:none;font-size:14px;color:var(--text)}
  .search-pill input::placeholder{color:#6F6A88}
  .search-pill:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(36,224,168,.16)}
  .search-toggle{display:none;align-items:center;justify-content:center;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);transition:border-color .2s}
  .search-toggle svg{width:18px;height:18px;stroke:var(--text);fill:none;stroke-width:2}
  .search-toggle:hover{border-color:var(--primary)}
  .nav-burger{display:none;align-items:center;justify-content:center;width:44px;height:44px;border-radius:12px;border:1px solid var(--line)}
  .nav-burger span{position:relative;display:block;width:18px;height:2px;background:var(--text);transition:background .2s}
  .nav-burger span::before,.nav-burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);transition:transform .22s}
  .nav-burger span::before{top:-6px}
  .nav-burger span::after{top:6px}
  .nav-burger.is-open span{background:transparent}
  .nav-burger.is-open span::before{transform:translateY(6px) rotate(45deg)}
  .nav-burger.is-open span::after{transform:translateY(-6px) rotate(-45deg)}

  .mobile-menu{position:fixed;left:0;right:0;top:0;bottom:0;z-index:55;padding:88px 24px 120px;background:rgba(9,8,20,.98);backdrop-filter:blur(10px);overflow-y:auto;opacity:0;visibility:hidden;transform:translateY(-10px);transition:opacity .24s ease,transform .24s ease,visibility .24s}
  .mobile-menu.is-open{opacity:1;visibility:visible;transform:translateY(0)}
  .mobile-nav{display:flex;flex-direction:column}
  .mobile-link{padding:16px 4px;font-size:17px;font-weight:600;border-bottom:1px solid var(--line)}
  .mobile-link.is-active{color:var(--primary)}
  .mobile-cta{position:fixed;left:16px;right:16px;bottom:16px}

  /* ---------- 按钮 / 徽章 ---------- */
  .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;border:1px solid transparent;white-space:nowrap;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,color .18s ease}
  .btn:hover{transform:translateY(-1px)}
  .btn:active{transform:translateY(1px)}
  .btn-sm{height:40px;padding:0 18px;font-size:14px}
  .btn-primary{background:var(--primary);color:#05170F;box-shadow:0 14px 32px -18px rgba(36,224,168,.9)}
  .btn-primary:hover{box-shadow:0 20px 40px -16px rgba(36,224,168,.95)}
  .btn-ghost{border-color:var(--line);color:var(--text)}
  .btn-ghost:hover{border-color:var(--primary);color:var(--primary)}
  .btn-light{background:#fff;color:var(--light-text);box-shadow:var(--shadow-light)}
  .badge{display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.08em;background:rgba(122,92,255,.14);color:#B6A5FF}
  .badge-primary{background:var(--primary-dim);color:var(--primary)}
  .badge-hot{background:rgba(255,122,69,.16);color:#FF9C74}

  /* ---------- 顶部横幅 ---------- */
  .banner{position:relative;overflow:hidden;padding:74px 0 66px;background:#0B0A16;border-bottom:1px solid var(--line)}
  .banner-media{position:absolute;inset:0;background-image:url("/assets/images/backpic/back-1.webp");background-size:cover;background-position:center}
  .banner-media::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(11,10,22,.96) 0%,rgba(11,10,22,.88) 48%,rgba(11,10,22,.74) 100%)}
  .banner-inner{position:relative;z-index:2}
  .crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:20px;font-size:13px;color:var(--muted)}
  .crumbs a{transition:color .2s}
  .crumbs a:hover{color:var(--primary);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:4px}
  .crumbs .sep{color:#544F70}
  .banner-grid{display:grid;grid-template-columns:1.4fr .9fr;gap:44px;align-items:end}
  .banner-title{font-size:clamp(28px,3.6vw,42px);font-weight:800;letter-spacing:-.02em;line-height:1.24;color:#fff}
  .banner-title span{color:var(--primary)}
  .banner-title .dot{color:var(--violet);font-weight:600}
  .banner-side p{font-size:15px;color:var(--muted)}
  .banner-side .side-line{margin-top:16px;height:2px;width:64px;background:linear-gradient(90deg,var(--primary),var(--violet))}

  /* ---------- 通用区块 ---------- */
  .section{padding:92px 0}
  .section-light{background:var(--light);color:var(--light-text)}
  .section-glow{background:radial-gradient(70% 120% at 50% 0%,rgba(122,92,255,.16),transparent 70%),var(--bg)}
  .section-head{max-width:720px;margin-bottom:44px}
  .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--primary);text-transform:uppercase}
  .section-title{margin-top:12px;font-size:clamp(24px,2.8vw,34px);font-weight:800;letter-spacing:-.02em;line-height:1.3}
  .section-sub{margin-top:14px;font-size:16px;color:var(--muted)}
  .section-light .section-sub{color:#5B5673}
  .divider{height:1px;background:var(--line);border:0;margin:0}

  /* ---------- 卡片聚合 ---------- */
  .card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
  .content-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease}
  .content-card:hover{transform:translateY(-3px);border-color:var(--primary);box-shadow:var(--shadow-dark)}
  .card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,rgba(36,224,168,.14),rgba(122,92,255,.16))}
  .card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
  .content-card:hover .card-media img{transform:scale(1.03)}
  .card-body{display:flex;flex-direction:column;gap:12px;flex:1;padding:22px}
  .card-title{font-size:18px;font-weight:700;line-height:1.5;color:#fff}
  .card-text{flex:1;font-size:14.5px;color:var(--muted)}
  .card-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary)}
  .card-link svg{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:2;transition:transform .2s}
  .content-card:hover .card-link svg{transform:translateX(3px)}

  /* ---------- 图文与要点 ---------- */
  .split{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
  .media-frame{border-radius:var(--radius-lg);overflow:hidden;border:1px solid rgba(20,18,31,.08);box-shadow:var(--shadow-light);background:#fff}
  .media-frame img{width:100%;aspect-ratio:16/10;object-fit:cover}
  .point-list{display:flex;flex-direction:column;gap:20px;margin-top:28px}
  .point{display:flex;gap:14px}
  .point-num{display:flex;align-items:center;justify-content:center;flex:none;width:34px;height:34px;border-radius:10px;background:rgba(36,224,168,.18);color:#0F7A5A;font-family:var(--font-num);font-size:14px;font-weight:700}
  .point h3{font-size:16px;font-weight:700;color:var(--light-text)}
  .point p{margin-top:2px;font-size:14.5px;color:#5B5673}

  /* ---------- 数据条 ---------- */
  .stat-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;background:var(--line)}
  .stat{padding:34px 22px;text-align:center;background:#100E1E}
  .stat-num{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:38px;font-weight:800;letter-spacing:-.02em;color:var(--primary)}
  .stat-num i{font-style:normal;margin-left:4px;font-size:15px;color:var(--orange)}
  .stat-label{margin-top:8px;font-size:14px;color:var(--muted)}
  .stat-note{margin-top:18px;font-size:13px;color:#6F6A88}

  /* ---------- FAQ ---------- */
  .faq-list{display:flex;flex-direction:column;gap:12px;max-width:880px}
  .faq-item{background:#fff;border:1px solid rgba(20,18,31,.08);border-radius:14px;overflow:hidden;transition:border-color .2s,box-shadow .2s}
  .faq-item.is-open{border-color:rgba(36,224,168,.65);box-shadow:0 14px 32px -24px rgba(11,10,22,.45)}
  .faq-q{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;padding:20px 22px;text-align:left;font-size:16px;font-weight:700;color:var(--light-text)}
  .faq-icon{flex:none;width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:2;transition:transform .24s ease}
  .faq-item.is-open .faq-icon{transform:rotate(180deg)}
  .faq-panel{max-height:0;overflow:hidden;transition:max-height .26s ease}
  .faq-item.is-open .faq-panel{max-height:320px}
  .faq-panel p{padding:0 22px 22px;font-size:15px;color:#5B5673}

  /* ---------- CTA 与联系 ---------- */
  .cta-band{display:grid;grid-template-columns:1.35fr auto;gap:28px;align-items:center;padding:44px;border-radius:var(--radius-lg);background:linear-gradient(100deg,#24E0A8 0%,#3FC9C6 46%,#7A5CFF 100%);color:#0B0A16;overflow:hidden}
  .cta-band h2{font-size:clamp(22px,2.6vw,30px);font-weight:800;letter-spacing:-.02em;color:#07160F}
  .cta-band p{margin-top:10px;font-size:15px;color:rgba(7,22,15,.78)}
  .cta-actions{display:flex;gap:12px;flex-wrap:wrap}
  .contact-rows{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:28px}
  .contact-cell{padding:20px 22px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius)}
  .contact-cell h3{font-size:13px;letter-spacing:.06em;color:var(--muted)}
  .contact-cell p{margin-top:6px;font-size:16px;font-weight:600;color:#fff}

  /* ---------- 页脚 ---------- */
  .site-footer{padding:64px 0 28px;background:#08070F;border-top:1px solid var(--line);color:var(--muted)}
  .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
  .footer-brand p{margin-top:16px;max-width:330px;font-size:14px;color:var(--muted)}
  .footer-col h4{margin-bottom:16px;font-size:14px;font-weight:700;color:#fff}
  .footer-col ul{display:flex;flex-direction:column;gap:10px}
  .footer-col a{font-size:14px;color:var(--muted);transition:color .2s}
  .footer-col a:hover{color:var(--primary);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:4px}
  .footer-col .plain{display:block;margin-bottom:8px;font-size:14px;color:var(--muted)}
  .footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;margin-top:44px;padding-top:22px;border-top:1px solid var(--line);font-size:12px;color:#6F6A88}

  /* ---------- 响应式 ---------- */
  @media (max-width:1023px){
    .nav-links,.search-pill,.nav-actions .btn-ghost{display:none}
    .search-toggle,.nav-burger{display:inline-flex}
    .banner-grid{grid-template-columns:1fr;gap:26px;align-items:start}
    .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    .split{grid-template-columns:1fr;gap:34px}
    .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
    .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    .cta-band{grid-template-columns:1fr;padding:36px}
    .contact-rows{grid-template-columns:1fr}
    .section{padding:68px 0}
  }
  @media (max-width:639px){
    .container{padding:0 16px}
    .nav-bar{min-height:60px;gap:10px}
    .brand-text{font-size:15px}
    .brand-text em{display:none}
    .nav-actions .btn-primary{display:none}
    .mobile-menu{top:0;padding-top:84px}
    .card-grid{grid-template-columns:1fr}
    .stat-num{font-size:32px}
    .stat{padding:26px 16px}
    .section{padding:56px 0}
    .banner{padding:56px 0 48px}
    .btn{width:100%}
    .cta-actions .btn{width:100%}
    .cta-band{padding:30px}
    .footer-grid{grid-template-columns:1fr;gap:28px}
  }

/* roulang page: category2 */
:root {
    --ink: #0B0A16;
    --card: #141223;
    --line: rgba(255, 255, 255, .08);
    --line-strong: rgba(255, 255, 255, .16);
    --txt: #F2F0FF;
    --muted: #A9A5C2;
    --brand: #24E0A8;
    --violet: #7A5CFF;
    --spark: #FF7A45;
    --light: #F6F5FB;
    --light-txt: #14121F;
    --light-muted: #5B5870;
    --light-line: #E3E1EE;
    --r-lg: 20px;
    --r-md: 16px;
    --r-btn: 12px;
    --shadow-dark: 0 0 0 1px rgba(255,255,255,.06), 0 18px 40px -24px rgba(36,224,168,.28);
    --shadow-light: 0 12px 32px rgba(11,10,22,.08);
    --font-cn: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, sans-serif;
    --font-num: Inter, "SF Pro Display", system-ui, sans-serif;
  }

  *, *::before, *::after { box-sizing: border-box; }

  html { scroll-behavior: smooth; }

  body {
    margin: 0;
    background: var(--ink);
    color: var(--txt);
    font-family: var(--font-cn);
    font-size: 16px;
    line-height: 1.85;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
  }

  img { max-width: 100%; height: auto; display: block; }

  a { color: inherit; text-decoration: none; transition: color .2s ease, background .2s ease; }
  a:hover { color: var(--brand); }

  button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

  h1, h2, h3, h4 {
    margin: 0;
    font-weight: 800;
    letter-spacing: -.02em;
    line-height: 1.3;
  }

  p { margin: 0 0 16px; }
  p:last-child { margin-bottom: 0; }

  ul { margin: 0; padding: 0; list-style: none; }

  :focus-visible {
    outline: 2px solid var(--brand);
    outline-offset: 2px;
    border-radius: 6px;
  }

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

  /* ---------- 顶部导航 ---------- */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 80;
    background: rgba(11, 10, 22, .84);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line);
    transition: background .25s ease, box-shadow .25s ease;
  }
  .site-header.is-scrolled {
    background: rgba(11, 10, 22, .94);
    box-shadow: 0 14px 34px -24px rgba(0, 0, 0, .95);
  }

  .nav-bar {
    display: flex;
    align-items: center;
    gap: 22px;
    height: 68px;
  }

  .brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    letter-spacing: -.02em;
    white-space: nowrap;
    flex: none;
  }
  .brand-mark {
    width: 14px;
    height: 14px;
    border-radius: 4px;
    background: linear-gradient(135deg, var(--brand), var(--violet));
    box-shadow: 0 0 0 4px rgba(36, 224, 168, .12);
    flex: none;
  }
  .brand-text { font-size: 17px; color: var(--txt); }
  .brand-text em { font-style: normal; font-weight: 600; color: var(--muted); }

  .nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-left: 10px;
  }
  .nav-link {
    position: relative;
    padding: 9px 12px;
    border-radius: 10px;
    font-size: 15px;
    color: var(--muted);
    transition: color .2s ease, background .2s ease;
  }
  .nav-link:hover { color: var(--txt); background: rgba(255, 255, 255, .06); }
  .nav-link.is-active { color: var(--txt); }
  .nav-link.is-active::after {
    content: "";
    position: absolute;
    left: 12px;
    right: 12px;
    bottom: 2px;
    height: 2px;
    border-radius: 2px;
    background: var(--brand);
  }

  .nav-actions {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 10px;
  }

  .search-pill {
    display: flex;
    align-items: center;
    gap: 8px;
    height: 40px;
    width: 226px;
    padding: 0 14px;
    border-radius: 999px;
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, .04);
    transition: border-color .2s ease, box-shadow .2s ease;
  }
  .search-pill:focus-within {
    border-color: rgba(36, 224, 168, .6);
    box-shadow: 0 0 0 3px rgba(36, 224, 168, .14);
  }
  .search-pill svg {
    width: 16px;
    height: 16px;
    stroke: var(--muted);
    fill: none;
    flex: none;
  }
  .search-pill input {
    width: 100%;
    background: none;
    border: 0;
    outline: none;
    color: var(--txt);
    font-size: 14px;
    font-family: var(--font-cn);
  }
  .search-pill input::placeholder { color: #6E6A89; }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    height: 44px;
    padding: 0 20px;
    border-radius: var(--r-btn);
    font-size: 15px;
    font-weight: 600;
    border: 1px solid transparent;
    cursor: pointer;
    white-space: nowrap;
    transition: transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease, border-color .18s ease;
  }
  .btn-primary {
    background: var(--brand);
    color: #06231A;
    box-shadow: 0 12px 26px -16px rgba(36, 224, 168, .95);
  }
  .btn-primary:hover {
    color: #06231A;
    transform: translateY(-1px);
    box-shadow: 0 18px 34px -14px rgba(36, 224, 168, .95);
  }
  .btn-primary:active { transform: translateY(1px); }

  .btn-ghost {
    border-color: var(--line);
    color: var(--txt);
    background: rgba(255, 255, 255, .03);
  }
  .btn-ghost:hover {
    color: var(--txt);
    background: rgba(255, 255, 255, .09);
    border-color: var(--line-strong);
    transform: translateY(-1px);
  }
  .btn-ghost:active { transform: translateY(1px); }

  .btn-light {
    background: #FFFFFF;
    color: var(--light-txt);
    box-shadow: 0 14px 30px -18px rgba(11, 10, 22, .55);
  }
  .btn-light:hover { color: var(--light-txt); transform: translateY(-1px); }

  .btn-sm { height: 40px; padding: 0 16px; font-size: 14px; }
  .btn-block { width: 100%; }

  .nav-burger {
    display: none;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    border: 1px solid var(--line);
    position: relative;
  }
  .nav-burger span,
  .nav-burger span::before,
  .nav-burger span::after {
    content: "";
    position: absolute;
    left: 50%;
    width: 18px;
    height: 2px;
    border-radius: 2px;
    background: var(--txt);
    transform: translateX(-50%);
    transition: transform .22s ease, opacity .22s ease;
  }
  .nav-burger span { top: 50%; margin-top: -1px; }
  .nav-burger span::before { top: -6px; }
  .nav-burger span::after { top: 6px; }
  .nav-burger.is-open span { background: transparent; }
  .nav-burger.is-open span::before { transform: translateX(-50%) translateY(6px) rotate(45deg); }
  .nav-burger.is-open span::after { transform: translateX(-50%) translateY(-6px) rotate(-45deg); }

  .mobile-drawer {
    display: none;
    overflow: hidden;
    max-height: 0;
    transition: max-height .24s ease;
    border-top: 1px solid var(--line);
    background: rgba(11, 10, 22, .98);
  }
  .mobile-drawer.is-open { max-height: 420px; }
  .mobile-drawer nav { display: grid; gap: 4px; padding: 16px 24px 4px; }
  .drawer-link {
    padding: 12px 14px;
    border-radius: 12px;
    font-size: 16px;
    color: var(--muted);
    background: rgba(255, 255, 255, .03);
    min-height: 44px;
    display: flex;
    align-items: center;
  }
  .drawer-link.is-active { color: var(--txt); border-left: 2px solid var(--brand); }
  .drawer-cta { padding: 14px 24px 22px; }

  /* ---------- 分类页横幅 ---------- */
  .page-hero {
    position: relative;
    overflow: hidden;
    background: var(--ink);
    border-bottom: 1px solid var(--line);
  }
  .page-hero-bg {
    position: absolute;
    inset: 0;
    background-image: url('/assets/images/backpic/back-2.png');
    background-size: cover;
    background-position: center;
    opacity: .42;
  }
  .page-hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(100deg, rgba(11, 10, 22, .97) 0%, rgba(11, 10, 22, .88) 46%, rgba(11, 10, 22, .62) 100%);
  }
  .page-hero .container { position: relative; z-index: 2; }

  .hero-inner {
    display: grid;
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    gap: 48px;
    align-items: end;
    padding: 76px 0 72px;
  }

  .breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--muted);
    margin-bottom: 20px;
  }
  .breadcrumb a { color: var(--muted); }
  .breadcrumb a:hover { color: var(--brand); }
  .breadcrumb .sep { color: #57536F; }
  .breadcrumb .current { color: var(--txt); }

  .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    border-radius: 999px;
    font-size: 12px;
    letter-spacing: .08em;
    color: var(--violet);
    background: rgba(122, 92, 255, .14);
    border: 1px solid rgba(122, 92, 255, .28);
    margin-bottom: 18px;
  }

  .page-hero h1 {
    font-size: clamp(28px, 3.4vw, 44px);
    color: var(--txt);
    margin-bottom: 18px;
  }
  .page-hero h1 span { display: block; }
  .page-hero h1 .hl {
    background: linear-gradient(96deg, var(--brand), var(--violet));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }

  .hero-note {
    padding: 22px 24px;
    border-radius: var(--r-md);
    border: 1px solid var(--line);
    background: rgba(20, 18, 35, .78);
    box-shadow: var(--shadow-dark);
  }
  .hero-note h2 {
    font-size: 15px;
    color: var(--brand);
    margin-bottom: 10px;
    letter-spacing: 0;
  }
  .hero-note p { font-size: 14.5px; color: var(--muted); margin: 0; }

  /* ---------- 段落底座 ---------- */
  .section { padding: 96px 0; }
  .section-dark { background: var(--ink); color: var(--txt); }
  .section-light { background: var(--light); color: var(--light-txt); }
  .section-light h1,
  .section-light h2,
  .section-light h3,
  .section-light h4 { color: var(--light-txt); }
  .section-light p { color: var(--light-muted); }
  .section-light a { color: var(--light-txt); }
  .section-light a:hover { color: #0E8F6C; }

  .section-head { max-width: 720px; margin-bottom: 48px; }
  .section-head .tagline {
    display: block;
    font-size: 12px;
    letter-spacing: .08em;
    font-family: var(--font-num);
    color: var(--brand);
    margin-bottom: 12px;
  }
  .section-light .section-head .tagline { color: #0E8F6C; }
  .section-head h2 { font-size: clamp(24px, 2.6vw, 34px); margin-bottom: 14px; }
  .section-head p { font-size: 16px; }

  .muted-dark { color: var(--muted); }
  .muted-light { color: var(--light-muted); }

  /* ---------- 服务范围速览 ---------- */
  .scope-strip {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
  }
  .scope-item {
    padding: 30px 26px;
    border-right: 1px solid var(--line);
    transition: background .22s ease;
  }
  .scope-item:last-child { border-right: 0; }
  .scope-item:hover { background: rgba(36, 224, 168, .05); }
  .scope-item .no {
    font-family: var(--font-num);
    font-size: 13px;
    letter-spacing: .08em;
    color: var(--brand);
    font-variant-numeric: tabular-nums;
    display: block;
    margin-bottom: 12px;
  }
  .scope-item h3 { font-size: 17px; margin-bottom: 8px; }
  .scope-item p { font-size: 14.5px; color: var(--muted); margin: 0; }

  /* ---------- 8/4 主区 ---------- */
  .split {
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .media-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 34px;
    align-items: center;
    padding-bottom: 48px;
    margin-bottom: 48px;
    border-bottom: 1px solid var(--light-line);
  }
  .media-row:last-child { border-bottom: 0; margin-bottom: 0; padding-bottom: 0; }
  .media-row.reverse .media-figure { order: 2; }

  .media-figure {
    border-radius: var(--r-md);
    overflow: hidden;
    border: 1px solid var(--light-line);
    box-shadow: var(--shadow-light);
    background: #ECEBF5;
  }
  .media-figure img {
    aspect-ratio: 16 / 9;
    width: 100%;
    object-fit: cover;
    transition: transform .3s ease;
  }
  .media-row:hover .media-figure img { transform: scale(1.03); }

  .media-body h3 {
    font-size: 22px;
    margin-bottom: 14px;
    padding-left: 14px;
    position: relative;
  }
  .media-body h3::before {
    content: "";
    position: absolute;
    left: 0;
    top: 4px;
    bottom: 4px;
    width: 3px;
    border-radius: 3px;
    background: var(--brand);
  }
  .media-body p { font-size: 15.5px; }

  .point-list { display: grid; gap: 12px; margin: 18px 0 0; }
  .point-list li {
    position: relative;
    padding-left: 24px;
    font-size: 15px;
    color: var(--light-muted);
    line-height: 1.75;
  }
  .point-list li::before {
    content: "";
    position: absolute;
    left: 4px;
    top: 11px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--brand);
    box-shadow: 0 0 0 3px rgba(36, 224, 168, .16);
  }

  .side-sticky {
    position: sticky;
    top: 96px;
    display: grid;
    gap: 20px;
  }
  .side-card {
    border: 1px solid var(--light-line);
    border-radius: var(--r-md);
    background: #FFFFFF;
    padding: 22px 24px;
    box-shadow: var(--shadow-light);
  }
  .side-card h3 {
    font-size: 15px;
    letter-spacing: 0;
    margin-bottom: 14px;
  }
  .anchor-list { display: grid; gap: 2px; }
  .anchor-list a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 10px;
    font-size: 14.5px;
    color: var(--light-muted);
    transition: background .18s ease, color .18s ease, transform .18s ease;
  }
  .anchor-list a::after {
    content: "›";
    font-family: var(--font-num);
    color: #B4B1C6;
    transition: transform .18s ease, color .18s ease;
  }
  .anchor-list a:hover {
    background: rgba(36, 224, 168, .12);
    color: var(--light-txt);
  }
  .anchor-list a:hover::after { transform: translateX(2px); color: var(--brand); }

  .contact-card {
    border-radius: var(--r-md);
    border: 1px solid rgba(122, 92, 255, .3);
    background: linear-gradient(150deg, rgba(122, 92, 255, .1), rgba(36, 224, 168, .1));
    padding: 24px;
  }
  .contact-card h3 { font-size: 16px; margin-bottom: 10px; }
  .contact-card p { font-size: 14.5px; margin-bottom: 16px; }

  .meta-rows { display: grid; gap: 10px; margin-top: 4px; }
  .meta-row {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    font-size: 13.5px;
    color: var(--light-muted);
    padding-bottom: 10px;
    border-bottom: 1px dashed var(--light-line);
  }
  .meta-row:last-child { border-bottom: 0; padding-bottom: 0; }
  .meta-row strong { color: var(--light-txt); font-weight: 600; }

  /* ---------- 参数表 ---------- */
  .spec-wrap {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.6fr);
    gap: 48px;
    align-items: start;
  }
  .spec-table {
    width: 100%;
    border-collapse: collapse;
    background: #FFFFFF;
    border: 1px solid var(--light-line);
    border-radius: var(--r-md);
    overflow: hidden;
    box-shadow: var(--shadow-light);
  }
  .spec-table caption {
    caption-side: top;
    text-align: left;
    font-size: 13px;
    color: var(--light-muted);
    padding: 16px 24px 0;
  }
  .spec-table th,
  .spec-table td {
    text-align: left;
    padding: 16px 24px;
    font-size: 15px;
    border-bottom: 1px solid var(--light-line);
    vertical-align: top;
  }
  .spec-table tr:last-child th,
  .spec-table tr:last-child td { border-bottom: 0; }
  .spec-table th {
    width: 34%;
    font-weight: 600;
    color: var(--light-txt);
    background: rgba(122, 92, 255, .05);
  }
  .spec-table td { color: var(--light-muted); }

  /* ---------- FAQ ---------- */
  .faq-list {
    display: grid;
    gap: 12px;
    max-width: 880px;
  }
  .faq-item {
    border: 1px solid var(--light-line);
    border-radius: var(--r-md);
    background: #FFFFFF;
    overflow: hidden;
    transition: border-color .2s ease, box-shadow .2s ease;
  }
  .faq-item.is-open {
    border-color: rgba(36, 224, 168, .6);
    box-shadow: 0 16px 34px -22px rgba(36, 224, 168, .5);
  }
  .faq-q {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    padding: 20px 24px;
    text-align: left;
    font-size: 16.5px;
    font-weight: 600;
    color: var(--light-txt);
    min-height: 44px;
  }
  .faq-icon {
    flex: none;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    border: 1px solid var(--light-line);
    position: relative;
    transition: transform .24s ease, border-color .24s ease, background .24s ease;
  }
  .faq-icon::before,
  .faq-icon::after {
    content: "";
    position: absolute;
    left: 50%;
    top: 50%;
    background: var(--light-txt);
    transform: translate(-50%, -50%);
    border-radius: 2px;
  }
  .faq-icon::before { width: 11px; height: 2px; }
  .faq-icon::after { width: 2px; height: 11px; transition: opacity .24s ease; }
  .faq-item.is-open .faq-icon {
    transform: rotate(180deg);
    background: var(--brand);
    border-color: var(--brand);
  }
  .faq-item.is-open .faq-icon::after { opacity: 0; }
  .faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height .24s ease;
  }
  .faq-a p {
    padding: 0 24px 22px;
    font-size: 15.5px;
    margin: 0;
    color: var(--light-muted);
  }

  /* ---------- CTA ---------- */
  .cta-band {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 28px;
    padding: 36px 40px;
    border-radius: var(--r-lg);
    background: linear-gradient(100deg, rgba(36, 224, 168, .92), rgba(122, 92, 255, .92));
    box-shadow: 0 24px 50px -30px rgba(122, 92, 255, .85);
  }
  .cta-band h2 {
    font-size: clamp(22px, 2.4vw, 30px);
    color: #08121B;
    margin-bottom: 8px;
  }
  .cta-band p { color: rgba(8, 18, 27, .76); margin: 0; font-size: 15.5px; }

  .section-tight { padding-top: 0; }

  /* ---------- 页脚 ---------- */
  .site-footer {
    background: var(--ink);
    border-top: 1px solid var(--line);
    padding: 72px 0 32px;
    color: var(--muted);
  }
  .footer-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.5fr) repeat(3, minmax(0, 1fr));
    gap: 40px;
    padding-bottom: 40px;
  }
  .footer-brand .brand { margin-bottom: 16px; }
  .footer-brand p { font-size: 14.5px; color: var(--muted); max-width: 360px; }
  .footer-col h4 {
    font-size: 15px;
    color: var(--txt);
    margin-bottom: 16px;
    letter-spacing: 0;
  }
  .footer-col ul { display: grid; gap: 10px; }
  .footer-col a,
  .footer-col .plain {
    font-size: 14.5px;
    color: var(--muted);
    display: inline-flex;
    align-items: center;
    min-height: 32px;
  }
  .footer-col a:hover { color: var(--brand); }
  .footer-bottom {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding-top: 24px;
    border-top: 1px solid var(--line);
    font-size: 12px;
    color: #7C7894;
  }

  /* ---------- 响应式 ---------- */
  @media (max-width: 1279px) {
    .container { max-width: 1140px; }
  }

  @media (max-width: 1023px) {
    .nav-links, .search-pill { display: none; }
    .nav-burger { display: block; }
    .mobile-drawer { display: block; }
    .hero-inner { grid-template-columns: minmax(0, 1fr); gap: 32px; padding: 56px 0 56px; }
    .split { grid-template-columns: minmax(0, 1fr); gap: 36px; }
    .side-sticky { position: static; }
    .scope-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .scope-item:nth-child(2) { border-right: 0; }
    .scope-item:nth-child(1),
    .scope-item:nth-child(2) { border-bottom: 1px solid var(--line); }
    .spec-wrap { grid-template-columns: minmax(0, 1fr); gap: 32px; }
    .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 32px; }
    .section { padding: 72px 0; }
  }

  @media (max-width: 767px) {
    .media-row { grid-template-columns: minmax(0, 1fr); gap: 22px; }
    .media-row.reverse .media-figure { order: 0; }
    .cta-band { grid-template-columns: minmax(0, 1fr); padding: 28px 24px; }
    .footer-grid { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  }

  @media (max-width: 519px) {
    .container { padding: 0 16px; }
    .nav-bar { height: 60px; gap: 12px; }
    .brand-text { font-size: 15.5px; }
    .nav-actions .btn-ghost { display: none; }
    .btn-primary.btn-sm { padding: 0 14px; }
    .section { padding: 60px 0; }
    .scope-strip { grid-template-columns: minmax(0, 1fr); }
    .scope-item { border-right: 0; border-bottom: 1px solid var(--line); padding: 22px 18px; }
    .scope-item:last-child { border-bottom: 0; }
    .spec-table th,
    .spec-table td { display: block; width: 100%; padding: 14px 18px; }
    .spec-table th { background: rgba(122, 92, 255, .06); border-bottom: 0; }
    .spec-table td { padding-top: 6px; }
    .faq-q { padding: 18px; font-size: 15.5px; }
    .faq-a p { padding: 0 18px 18px; }
    .page-hero h1 { font-size: 26px; }
  }