/* roulang page: index */
:root{
  --c-bg:#05080F;
  --c-bg-2:#0A101C;
  --c-glass:rgba(20,32,52,.58);
  --c-line:rgba(126,196,214,.14);
  --c-primary:#16D3B7;
  --c-primary-100:#7BF2E0;
  --c-primary-700:#0E9C87;
  --c-action:#FFB454;
  --c-warn:#FF7A6B;
  --t1:#E9F2F6;
  --t2:#A6B9C7;
  --t3:#6B7F8F;
  --sh-1:inset 0 1px 0 rgba(255,255,255,.06), 0 8px 24px rgba(0,0,0,.35);
  --sh-glow:0 0 0 1px rgba(22,211,183,.35), 0 10px 30px -8px rgba(22,211,183,.45);
  --r-card:16px;
  --r-sm:12px;
  --r-btn:10px;
  --r-cta:20px;
  --r-badge:6px;
  --sp-section:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--t1);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",Inter,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(126,196,214,.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(126,196,214,.03) 1px,transparent 1px);
  background-size:48px 48px,48px 48px;
  -webkit-mask-image:radial-gradient(circle at 50% 0%,rgba(0,0,0,.85),transparent 72%);
  mask-image:radial-gradient(circle at 50% 0%,rgba(0,0,0,.85),transparent 72%);
}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease;}
a:hover{color:var(--c-primary-100);}
img{max-width:100%;height:auto;display:block;border-radius:var(--r-sm);}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul{padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input{font-family:inherit;}
::selection{background:rgba(22,211,183,.32);color:#fff;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}

/* ---------- Foundation 覆盖 ---------- */
.grid-container{max-width:1280px;margin-left:auto;margin-right:auto;padding-left:24px;padding-right:24px;}
@media (min-width:1440px){.grid-container{max-width:1360px;}}
.grid-x{margin-left:-12px;margin-right:-12px;}
.grid-margin-x>.cell{margin-left:12px;margin-right:12px;}
.row{max-width:1280px;margin:0 auto;}
.button{background:var(--c-primary);color:#04120f;border-radius:var(--r-btn);}
a.button:hover{color:#04120f;}
input[type="text"],input[type="email"]{background:rgba(8,14,24,.85);border:1px solid var(--c-line);color:var(--t1);border-radius:var(--r-btn);}

/* ---------- 通用 ---------- */
.site-header,.site-main,.site-footer{position:relative;z-index:1;}
.section{padding:var(--sp-section) 0;position:relative;}
.section--tight{padding:64px 0;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap;}
.sec-title{font-size:34px;font-weight:600;line-height:1.25;letter-spacing:-0.01em;}
.sec-sub{color:var(--t2);font-size:15px;margin-top:10px;max-width:640px;}
.sec-link{font-size:15px;font-weight:500;display:inline-flex;align-items:center;gap:8px;white-space:nowrap;}
.sec-link i{font-size:13px;transition:transform .2s ease;}
.sec-link:hover i{transform:translateX(3px);}
.grad-text{
  background:linear-gradient(100deg,var(--c-primary-100),var(--c-primary) 55%,var(--c-primary-700));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.card{
  background:var(--c-glass);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.card:hover{transform:translateY(-2px);border-color:rgba(22,211,183,.3);}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  font-size:12px;line-height:1;border-radius:var(--r-badge);
  background:rgba(22,211,183,.12);color:var(--c-primary);white-space:nowrap;
}
.tag--muted{background:rgba(107,127,143,.16);color:var(--t2);}
.divider{height:1px;border:0;background:linear-gradient(90deg,rgba(22,211,183,.4),rgba(22,211,183,0));margin:0;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;font-size:15px;font-weight:600;
  border-radius:var(--r-btn);letter-spacing:.01em;
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease,background-color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:var(--r-btn);}
.btn-primary{
  background:linear-gradient(135deg,var(--c-primary) 0%,var(--c-primary-700) 100%);
  color:#04120f;
  box-shadow:var(--sh-glow),inset 0 1px 0 rgba(255,255,255,.35);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);color:#04120f;box-shadow:0 0 0 1px rgba(22,211,183,.5),0 16px 38px -10px rgba(22,211,183,.55);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  background:transparent;color:var(--t1);border:1px solid var(--c-line);
}
.btn-ghost:hover{background:rgba(20,32,52,.7);border-color:rgba(126,196,214,.32);color:var(--t1);}
.btn-action{
  background:linear-gradient(135deg,#FFC879 0%,var(--c-action) 100%);
  color:#2A1700;
  box-shadow:0 0 0 1px rgba(255,180,84,.32),0 10px 30px -10px rgba(255,180,84,.5),inset 0 1px 0 rgba(255,255,255,.4);
}
.btn-action:hover{filter:brightness(1.05);transform:translateY(-2px);color:#2A1700;}
.btn-block{width:100%;}
.btn:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;height:64px;
  background:transparent;border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-stuck{
  background:var(--c-glass);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border-bottom-color:var(--c-line);
  box-shadow:0 10px 30px -20px rgba(0,0,0,.9);
}
.nav-wrap{max-width:1280px;margin:0 auto;padding:0 24px;height:100%;display:flex;align-items:center;gap:20px;}
@media (min-width:1440px){.nav-wrap{max-width:1360px;}}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--t1);flex-shrink:0;}
.brand:hover{color:var(--t1);}
.brand-mark{width:28px;height:28px;flex-shrink:0;display:block;}
.brand-text{font-size:17px;font-weight:700;letter-spacing:-0.01em;white-space:nowrap;}
.nav-main{display:flex;align-items:center;gap:28px;margin-left:14px;}
.nav-link{position:relative;font-size:16px;font-weight:500;color:var(--t2);padding:6px 0;white-space:nowrap;}
.nav-link:hover{color:var(--t1);}
.nav-link.is-active{color:var(--c-primary);}
.nav-link.is-active::after{content:"";position:absolute;left:0;bottom:-6px;width:20px;height:2px;border-radius:2px;background:var(--c-primary);}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px;}
.cmd-search{position:relative;display:flex;align-items:center;width:220px;height:40px;border-radius:var(--r-btn);background:rgba(8,14,24,.72);border:1px solid var(--c-line);transition:border-color .2s ease,box-shadow .2s ease;}
.cmd-search i{position:absolute;left:14px;font-size:13px;color:var(--t3);pointer-events:none;}
.cmd-search input{width:100%;height:100%;background:transparent;border:0;outline:none;padding:0 54px 0 38px;font-size:14px;color:var(--t1);}
.cmd-search input::placeholder{color:var(--t3);}
.cmd-search:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(22,211,183,.12);}
.kbd-key{position:absolute;right:10px;display:inline-flex;align-items:center;justify-content:center;width:24px;height:20px;font-size:11px;color:var(--t3);border:1px solid var(--c-line);border-radius:5px;background:rgba(255,255,255,.03);pointer-events:none;}
.icon-btn{width:36px;height:36px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;color:var(--t2);border:1px solid transparent;transition:background-color .2s ease,color .2s ease,border-color .2s ease;}
.icon-btn:hover{background:rgba(20,32,52,.8);color:var(--c-primary);border-color:var(--c-line);}
.menu-toggle{display:none;width:40px;height:40px;border-radius:var(--r-btn);border:1px solid var(--c-line);background:rgba(20,32,52,.6);color:var(--t1);align-items:center;justify-content:center;}

/* 抽屉 */
.drawer-mask{position:fixed;inset:0;background:rgba(5,8,15,.6);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:80;}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.nav-drawer{
  position:fixed;top:0;right:0;height:100%;width:84vw;max-width:360px;z-index:90;
  background:rgba(10,16,28,.96);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border-left:1px solid var(--c-line);
  padding:20px;display:flex;flex-direction:column;gap:16px;
  transform:translateX(102%);transition:transform .3s cubic-bezier(.22,.61,.36,1);
}
.nav-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-nav{display:flex;flex-direction:column;border-top:1px solid var(--c-line);}
.drawer-nav a{display:flex;align-items:center;height:48px;font-size:16px;color:var(--t2);border-bottom:1px solid var(--c-line);padding:0 4px;}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--c-primary);}
.drawer-search{position:relative;display:flex;align-items:center;height:44px;border-radius:var(--r-btn);background:rgba(8,14,24,.8);border:1px solid var(--c-line);}
.drawer-search i{position:absolute;left:14px;color:var(--t3);font-size:13px;}
.drawer-search input{width:100%;height:100%;background:transparent;border:0;outline:none;padding:0 14px 0 38px;color:var(--t1);font-size:14px;}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:76px 0 80px;}
.hero-bg{position:absolute;inset:0;z-index:-2;background-image:url(/assets/images/backpic/back-1.webp);background-size:cover;background-position:center right;opacity:.55;}
.hero-veil{position:absolute;inset:0;z-index:-1;
  background:
    radial-gradient(900px 460px at 6% 96%,rgba(22,211,183,.18),transparent 68%),
    linear-gradient(90deg,rgba(5,8,15,.94) 0%,rgba(5,8,15,.78) 42%,rgba(5,8,15,.46) 70%,rgba(5,8,15,.72) 100%);
}
.hero-title{font-size:52px;font-weight:700;line-height:1.15;letter-spacing:-0.02em;margin-bottom:20px;}
.hero-title span{display:block;}
.hero-sub{font-size:17px;color:var(--t2);max-width:520px;margin-bottom:32px;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:32px;}
.trust-row{display:flex;flex-wrap:wrap;gap:12px 24px;}
.trust-item{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--t2);}
.trust-item i{font-size:16px;color:var(--c-primary);}
.hero-panel{padding:18px;border-radius:var(--r-card);background:var(--c-glass);border:1px solid var(--c-line);-webkit-backdrop-filter:blur(16px) saturate(140%);backdrop-filter:blur(16px) saturate(140%);box-shadow:var(--sh-1);}
.hero-panel img{width:100%;height:250px;object-fit:cover;border-radius:var(--r-sm);border:1px solid rgba(255,255,255,.06);}
.hero-panel-body{padding:18px 6px 4px;}
.hero-panel-body h2{font-size:17px;font-weight:600;margin-bottom:6px;}
.hero-panel-body p{font-size:14px;color:var(--t2);}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:18px;}
.hero-stat{padding:14px 12px;border-radius:var(--r-sm);background:rgba(8,14,24,.6);border:1px solid var(--c-line);}
.hero-stat b{display:block;font-size:20px;font-weight:700;color:var(--c-primary);line-height:1.3;}
.hero-stat span{font-size:12.5px;color:var(--t3);}

/* ---------- 服务网格 ---------- */
.service-card{overflow:hidden;display:flex;flex-direction:column;text-decoration:none;color:inherit;}
.service-card:hover{color:inherit;}
.service-thumb{position:relative;overflow:hidden;border-radius:var(--r-card) var(--r-card) 0 0;background:var(--c-bg-2);}
.service-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;border:0;box-shadow:inset 0 0 0 1px rgba(255,255,255,.06);transition:transform .2s ease;}
.service-card:hover .service-thumb img{transform:scale(1.03);}
.service-thumb--lg{height:236px;}
.service-thumb--sm{height:150px;}
.service-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.service-body h3{font-size:22px;font-weight:600;line-height:1.35;}
.service-body h3.small{font-size:17px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.service-body p{font-size:14.5px;color:var(--t2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.service-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:4px;}
.service-foot .label{font-size:13px;color:var(--t3);}
.grid-offset .cell:nth-child(even) .service-card{margin-top:0;}
@media (min-width:1024px){
  .grid-offset .cell.offset-down{margin-top:24px;}
}
.big-card .service-body h3{font-size:26px;}

/* ---------- 评价 ---------- */
.review-rail{display:flex;gap:24px;overflow-x:auto;scroll-snap-type:x mandatory;padding:4px 4px 12px;scrollbar-width:none;}
.review-rail::-webkit-scrollbar{display:none;}
.review-card{flex:0 0 calc((100% - 48px)/3);scroll-snap-align:start;padding:24px;border-radius:var(--r-card);background:var(--c-glass);border:1px solid var(--c-line);box-shadow:var(--sh-1);}
.review-top{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.review-avatar{width:48px;height:48px;border-radius:50%;object-fit:cover;flex-shrink:0;border:1px solid rgba(255,255,255,.08);}
.review-name{font-size:15px;font-weight:600;}
.review-time{font-size:13px;color:var(--t3);}
.review-stars{color:var(--c-primary);font-size:13px;letter-spacing:2px;margin-bottom:10px;}
.review-text{font-size:14.5px;color:var(--t2);}
.review-nav{display:flex;align-items:center;gap:12px;margin-top:24px;}
.rail-btn{width:40px;height:40px;border-radius:50%;border:1px solid var(--c-line);background:rgba(20,32,52,.5);color:var(--t2);display:inline-flex;align-items:center;justify-content:center;transition:box-shadow .2s ease,color .2s ease,border-color .2s ease;}
.rail-btn:hover{color:var(--c-primary);border-color:rgba(22,211,183,.4);box-shadow:var(--sh-glow);}
.rail-dots{display:flex;align-items:center;gap:8px;}
.rail-dot{width:8px;height:8px;border-radius:999px;background:rgba(126,196,214,.24);transition:width .2s ease,background-color .2s ease;}
.rail-dot.is-active{width:20px;background:var(--c-primary);}

/* ---------- 保障条 ---------- */
.guard-bar{border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);background:var(--c-glass);-webkit-backdrop-filter:blur(16px) saturate(140%);backdrop-filter:blur(16px) saturate(140%);}
.guard-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.guard-item{padding:32px 24px;display:flex;gap:16px;align-items:flex-start;border-left:1px solid var(--c-line);}
.guard-item:first-child{border-left:0;}
.guard-item i{font-size:32px;color:var(--c-primary);line-height:1;}
.guard-item h3{font-size:15px;font-weight:600;margin-bottom:4px;}
.guard-item p{font-size:13px;color:var(--t2);line-height:1.65;}

/* ---------- FAQ ---------- */
.acc-list{border-top:1px solid var(--c-line);}
.acc-item{border-bottom:1px solid var(--c-line);}
.acc-head{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:22px 4px;text-align:left;font-size:16px;font-weight:500;color:var(--t1);transition:color .2s ease;}
.acc-head:hover{color:var(--c-primary);}
.acc-head .plus{flex-shrink:0;font-size:15px;color:var(--c-primary);transition:transform .25s ease;}
.acc-item.is-open .acc-head{color:var(--c-primary);}
.acc-item.is-open .acc-head .plus{transform:rotate(45deg);}
.acc-body{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.acc-inner{padding:0 4px 24px;font-size:15px;line-height:1.75;color:var(--t2);max-width:820px;}

/* ---------- 资讯 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{display:flex;flex-direction:column;overflow:hidden;text-decoration:none;color:inherit;}
.news-card:hover{color:inherit;}
.news-thumb{height:168px;background:var(--c-bg-2);overflow:hidden;border-radius:var(--r-card) var(--r-card) 0 0;}
.news-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .2s ease;}
.news-card:hover .news-thumb img{transform:scale(1.03);}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.news-body h3{font-size:17px;font-weight:600;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-body p{font-size:14px;color:var(--t2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{margin-top:auto;display:flex;align-items:center;gap:14px;font-size:13px;color:var(--t3);}
.news-meta span{display:inline-flex;align-items:center;gap:6px;}
.news-card:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px;}
.news-empty{grid-column:1 / -1;min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;text-align:center;border:1px dashed var(--c-line);border-radius:var(--r-card);background:rgba(10,16,28,.5);}
.news-empty i{font-size:48px;color:var(--t3);}
.news-empty p{font-size:14px;color:var(--t2);}

/* ---------- CTA ---------- */
.cta-panel{
  position:relative;overflow:hidden;border-radius:var(--r-cta);
  background:var(--c-glass);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border:1px solid var(--c-line);
  box-shadow:var(--sh-1);
  padding:56px;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;
}
.cta-panel::after{content:"";position:absolute;left:-80px;bottom:-120px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(22,211,183,.22),transparent 68%);pointer-events:none;}
.cta-panel h2{font-size:26px;font-weight:600;line-height:1.35;margin-bottom:10px;position:relative;}
.cta-panel p{font-size:14px;color:var(--t2);position:relative;}
.cta-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap;position:relative;}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:0;padding-top:64px;background:var(--c-bg-2);border-top:1px solid var(--c-line);}
.footer-top-line{height:1px;background:linear-gradient(90deg,rgba(22,211,183,.4),rgba(22,211,183,0));position:absolute;top:0;left:0;right:0;}
.footer-brand p{font-size:14px;color:var(--t2);margin:16px 0 20px;max-width:320px;line-height:1.75;}
.footer-social{display:flex;gap:14px;}
.footer-social a{width:24px;height:24px;display:inline-flex;align-items:center;justify-content:center;color:var(--t2);font-size:17px;}
.footer-social a:hover{color:var(--c-primary);}
.footer-col h4{font-size:14px;font-weight:600;color:var(--t1);margin-bottom:18px;}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a{font-size:14px;color:var(--t2);}
.footer-col a:hover{color:var(--c-primary);}
.footer-sub{display:flex;gap:10px;margin-top:4px;}
.footer-sub input{flex:1;height:40px;padding:0 14px;font-size:14px;}
.footer-sub input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(22,211,183,.12);}
.footer-sub .btn{height:40px;padding:0 16px;font-size:14px;}
.footer-note{font-size:13px;color:var(--t3);margin-top:12px;line-height:1.7;}
.footer-bottom{margin-top:56px;border-top:1px solid var(--c-line);padding:22px 0;}
.footer-bottom-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--t3);}
.footer-bottom-inner a{color:var(--t3);font-size:13px;}
.footer-bottom-inner a:hover{color:var(--c-primary);}
.footer-links{display:flex;gap:18px;flex-wrap:wrap;}

/* ---------- 动效 ---------- */
.js .reveal{opacity:0;transform:translateY(16px);}
.js .reveal.is-in{opacity:1;transform:none;transition:opacity .36s cubic-bezier(.22,.61,.36,1),transform .36s cubic-bezier(.22,.61,.36,1);}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .js .reveal{opacity:1 !important;transform:none !important;transition:none !important;}
  .card,.btn,.service-thumb img,.news-thumb img,.rail-btn,.acc-head .plus{transition:none !important;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .nav-main{gap:22px;}
  .cmd-search{width:180px;}
}
@media (max-width:1024px){
  :root{--sp-section:56px;}
  .nav-main{display:none;}
  .cmd-search{display:none;}
  .nav-right .icon-btn{display:none;}
  .nav-right .btn-action{display:none;}
  .menu-toggle{display:inline-flex;}
  .site-header{height:56px;}
  .hero-title{font-size:40px;}
  .hero{padding:56px 0 64px;}
  .hero-panel img{height:230px;}
  .review-card{flex:0 0 calc((100% - 24px)/2);}
  .guard-grid{grid-template-columns:repeat(2,1fr);}
  .guard-item:nth-child(3){border-left:0;}
  .guard-item{border-top:1px solid var(--c-line);}
  .guard-item:nth-child(1),.guard-item:nth-child(2){border-top:0;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .cta-panel{padding:40px;flex-direction:column;align-items:flex-start;}
  .sec-title{font-size:26px;}
  .service-body h3{font-size:20px;}
}
@media (max-width:768px){
  .grid-container{padding-left:16px;padding-right:16px;}
  .nav-wrap{padding:0 16px;}
  .hero-title{font-size:30px;}
  .hero-sub{font-size:16px;}
  .hero-actions .btn{flex:1 1 100%;}
  .hero-panel img{height:210px;}
  .hero-stats{grid-template-columns:1fr;gap:10px;}
  .review-card{flex:0 0 100%;}
  .news-grid{grid-template-columns:1fr;}
  .guard-grid{grid-template-columns:1fr;}
  .guard-item{border-left:0;padding:24px 18px;}
  .cta-panel{padding:28px;border-radius:var(--r-card);}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .sec-head{margin-bottom:28px;}
  .sec-sub{font-size:14px;}
  .service-body{padding:18px;}
  .footer-sub{flex-direction:column;}
  .footer-sub .btn{width:100%;}
}
@media (max-width:520px){
  body{font-size:16px;}
  .brand-text{font-size:15.5px;}
  .sec-title{font-size:24px;}
  .hero-title{font-size:28px;}
  .acc-head{font-size:15px;}
}

/* roulang page: article */
:root{
  --c-bg:#05080F;
  --c-bg-2:#0A101C;
  --c-glass:rgba(20,32,52,.58);
  --c-glass-2:rgba(20,32,52,.35);
  --c-line:rgba(126,196,214,.14);
  --c-primary:#16D3B7;
  --c-primary-100:#7BF2E0;
  --c-primary-700:#0E9C87;
  --c-action:#FFB454;
  --c-warn:#FF7A6B;
  --t1:#E9F2F6;
  --t2:#A6B9C7;
  --t3:#6B7F8F;
  --sh-1:inset 0 1px 0 rgba(255,255,255,.05), 0 8px 24px rgba(0,0,0,.35);
  --sh-glow:0 0 0 1px rgba(22,211,183,.35), 0 10px 30px -8px rgba(22,211,183,.45);
  --r-card:16px;
  --r-sm:12px;
  --r-btn:10px;
  --r-cta:20px;
  --r-badge:6px;
  --gap-sec:88px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background-color:var(--c-bg);
  color:var(--t2);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16.5px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  background-image:
    radial-gradient(900px 520px at 80% -8%, rgba(22,211,183,.14), transparent 62%),
    radial-gradient(700px 420px at 4% 12%, rgba(22,211,183,.06), transparent 60%),
    linear-gradient(rgba(126,196,214,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(126,196,214,.03) 1px, transparent 1px);
  background-size:auto,auto,48px 48px,48px 48px;
  background-attachment:fixed,fixed,scroll,scroll;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--r-sm);}
a{color:var(--c-primary);text-decoration:none;transition:color .2s var(--ease),opacity .2s var(--ease);}
a:hover{color:var(--c-primary-100);}
button,input{font-family:inherit;}
h1,h2,h3,h4,h5{color:var(--t1);margin:0;font-weight:600;line-height:1.3;letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
::selection{background:rgba(22,211,183,.3);color:#fff;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px;border-radius:6px;}

.grid-container{max-width:1280px;margin:0 auto;padding-left:24px;padding-right:24px;width:100%;}
@media screen and (min-width:1441px){ .grid-container{max-width:1360px;} }
@media screen and (max-width:640px){ .grid-container{padding-left:16px;padding-right:16px;} }

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:0;border:1px solid transparent;
  cursor:pointer;text-align:center;transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,#19E0C2 0%,#0E9C87 100%);
  color:#04211C;box-shadow:var(--sh-glow);border:none;
}
.btn-primary:hover,.btn-primary:focus{color:#04211C;filter:brightness(1.06);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(22,211,183,.5),0 16px 34px -10px rgba(22,211,183,.6);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(22,211,183,.4);}
.btn-ghost{background:rgba(255,255,255,.02);border:1px solid var(--c-line);color:var(--t1);}
.btn-ghost:hover,.btn-ghost:focus{background:var(--c-glass);border-color:rgba(22,211,183,.4);color:var(--t1);transform:translateY(-2px);}
.btn-action{background:var(--c-action);color:#2A1B02;border:none;box-shadow:0 10px 26px -10px rgba(255,180,84,.6);}
.btn-action:hover,.btn-action:focus{color:#2A1B02;filter:brightness(1.05);transform:translateY(-2px);}
.btn-sm{height:36px;padding:0 16px;font-size:13.5px;}
.btn-block{width:100%;}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:var(--r-badge);font-size:12px;font-weight:500;letter-spacing:.02em;
  background:rgba(22,211,183,.12);color:var(--c-primary);border:1px solid rgba(22,211,183,.18);
}
.badge-muted{background:rgba(107,127,143,.16);color:var(--t2);border-color:rgba(107,127,143,.2);}
.tag{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;
  font-size:13px;color:var(--t2);background:rgba(255,255,255,.03);border:1px solid var(--c-line);
  transition:all .2s var(--ease);
}
.tag:hover{color:var(--c-primary);border-color:rgba(22,211,183,.4);background:rgba(22,211,183,.08);}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;height:64px;
  background:transparent;border-bottom:1px solid transparent;
  transition:background .25s var(--ease),border-color .25s var(--ease),backdrop-filter .25s var(--ease);
}
.site-header.is-scrolled{
  background:var(--c-glass);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom-color:var(--c-line);
}
.nav-inner{display:flex;align-items:center;gap:24px;height:64px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{width:28px;height:28px;flex-shrink:0;}
.brand-text{font-size:18px;font-weight:700;color:var(--t1);letter-spacing:-.01em;white-space:nowrap;}
.nav-main{display:flex;align-items:center;gap:28px;margin-left:8px;}
.nav-link{
  position:relative;font-size:16px;font-weight:500;color:var(--t2);
  padding:6px 0;transition:color .2s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;border-radius:2px;
  background:var(--c-primary);transition:width .2s var(--ease);
}
.nav-link:hover{color:var(--t1);}
.nav-link.is-active{color:var(--c-primary);}
.nav-link.is-active::after{width:20px;}
.nav-tools{display:flex;align-items:center;gap:12px;margin-left:auto;}
.cmd-search{
  position:relative;display:flex;align-items:center;width:220px;height:40px;
  background:rgba(6,11,20,.72);border:1px solid var(--c-line);border-radius:var(--r-btn);
  padding:0 10px 0 14px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.cmd-search i{font-size:14px;color:var(--t3);margin-right:8px;}
.cmd-search input{
  flex:1;min-width:0;background:transparent;border:none;outline:none;color:var(--t1);
  font-size:14.5px;height:38px;
}
.cmd-search input::placeholder{color:var(--t3);}
.cmd-search:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(22,211,183,.12);}
.kbd{
  flex-shrink:0;display:inline-flex;align-items:center;justify-content:center;
  min-width:22px;height:20px;padding:0 5px;border-radius:5px;font-size:11px;
  color:var(--t3);background:rgba(255,255,255,.05);border:1px solid var(--c-line);
}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:50%;color:var(--t2);
  background:rgba(255,255,255,.03);border:1px solid var(--c-line);
  transition:all .2s var(--ease);
}
.icon-btn:hover{color:var(--c-primary);background:var(--c-glass);transform:translateY(-1px);}
.nav-cta{height:40px;padding:0 18px;font-size:14.5px;}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:var(--r-btn);
  background:rgba(255,255,255,.03);border:1px solid var(--c-line);color:var(--t1);
  align-items:center;justify-content:center;cursor:pointer;
}
.drawer-mask{
  position:fixed;inset:0;background:rgba(5,8,15,.6);backdrop-filter:blur(4px);
  opacity:0;visibility:hidden;transition:opacity .25s var(--ease),visibility .25s var(--ease);z-index:70;
}
.drawer-mask.is-on{opacity:1;visibility:visible;}
.mobile-drawer{
  position:fixed;top:0;right:0;height:100%;width:84vw;max-width:360px;z-index:80;
  background:rgba(8,14,24,.96);border-left:1px solid var(--c-line);
  backdrop-filter:blur(18px) saturate(140%);
  transform:translateX(102%);transition:transform .3s var(--ease);
  padding:24px 20px;display:flex;flex-direction:column;gap:8px;overflow-y:auto;
}
.mobile-drawer.is-on{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;}
.drawer-close{
  width:36px;height:36px;border-radius:50%;border:1px solid var(--c-line);
  background:rgba(255,255,255,.03);color:var(--t1);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
}
.mobile-drawer .cmd-search{width:100%;margin-bottom:8px;}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  height:48px;border-bottom:1px solid var(--c-line);color:var(--t2);font-size:15.5px;
}
.drawer-link.is-active{color:var(--c-primary);}
.drawer-link:hover{color:var(--t1);}
.mobile-drawer .btn{margin-top:18px;}

/* ============ 面包屑 ============ */
.crumbs-wrap{padding:24px 0 0;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--t3);}
.crumbs li{display:flex;align-items:center;gap:8px;color:var(--t3);}
.crumbs li::after{content:"/";color:rgba(22,211,183,.4);}
.crumbs li:last-child::after{content:"";}
.crumbs a{color:var(--t3);}
.crumbs a:hover{color:var(--c-primary);}
.crumbs .current{color:var(--t2);max-width:24ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ============ 文章标题区 ============ */
.article-hero{padding:16px 0 36px;}
.article-head{max-width:820px;margin:0 auto;text-align:left;}
.article-head .badge{margin-bottom:16px;}
.article-head h1{
  font-size:38px;line-height:1.35;font-weight:700;letter-spacing:-.02em;color:var(--t1);
  margin-bottom:18px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:13.5px;color:var(--t3);
}
.article-meta .dot{color:rgba(126,196,214,.35);}
.article-meta time{color:var(--t3);}
.article-divider{
  max-width:820px;margin:0 auto;height:1px;
  background:linear-gradient(90deg, rgba(22,211,183,.45), rgba(126,196,214,.12) 55%, transparent);
}

/* ============ 正文 ============ */
.article-main{padding:48px 0 var(--gap-sec);}
.article-body{
  max-width:820px;font-size:17px;line-height:1.85;color:var(--t2);
  overflow-wrap:break-word;word-break:break-word;
}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 20px;color:var(--t2);}
.article-body h2{
  position:relative;font-size:24px;font-weight:600;color:var(--t1);
  margin:40px 0 16px;padding-left:16px;scroll-margin-top:88px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.42em;width:3px;height:20px;
  background:var(--c-primary);border-radius:2px;
}
.article-body h3{font-size:20px;font-weight:600;color:var(--t1);margin:28px 0 12px;}
.article-body h4{font-size:17px;font-weight:600;color:var(--t1);margin:22px 0 10px;}
.article-body ul,.article-body ol{margin:0 0 20px;}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:10px;}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;
  background:var(--c-primary);border-radius:2px;
}
.article-body ol{counter-reset:oli;}
.article-body ol li{position:relative;padding-left:30px;margin-bottom:10px;counter-increment:oli;}
.article-body ol li::before{
  content:counter(oli);position:absolute;left:0;top:.18em;width:20px;height:20px;line-height:20px;
  text-align:center;font-size:12px;color:var(--c-primary);
  background:rgba(22,211,183,.12);border-radius:6px;
}
.article-body blockquote{
  margin:24px 0;padding:20px;border-left:3px solid var(--c-primary);
  background:var(--c-glass);border-radius:0 var(--r-sm) var(--r-sm) 0;
  backdrop-filter:blur(16px) saturate(140%);color:var(--t2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-sm);box-shadow:0 0 0 1px rgba(255,255,255,.06);margin:24px 0;}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--t3);text-align:center;margin-top:10px;}
.article-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--c-primary-100);}
.article-body strong{color:var(--t1);font-weight:600;}
.article-body table{
  width:100%;border-collapse:collapse;font-size:15px;margin:24px 0;
  background:var(--c-glass);border-radius:var(--r-sm);overflow:hidden;
  box-shadow:0 0 0 1px rgba(255,255,255,.05);
}
.article-body th{
  background:rgba(22,211,183,.12);color:var(--t1);font-weight:600;text-align:left;
}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--c-line);}
.article-body tr:last-child td{border-bottom:none;}
.article-body pre{
  background:#02040A;border:1px solid var(--c-line);border-radius:var(--r-btn);
  padding:16px;overflow-x:auto;margin:24px 0;
}
.article-body pre code{background:none;padding:0;border:none;}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:14px;
  color:var(--c-primary-100);background:rgba(22,211,183,.08);
  padding:2px 6px;border-radius:5px;
}
.article-body hr{border:none;height:1px;background:var(--c-line);margin:36px 0;}

.empty-state{
  background:var(--c-glass);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:56px 28px;text-align:center;max-width:820px;
}
.empty-state i{font-size:48px;color:var(--c-primary);opacity:.85;}
.empty-state h2{font-size:22px;color:var(--t1);margin:18px 0 10px;}
.empty-state p{font-size:15px;color:var(--t2);margin-bottom:22px;}

/* ============ 侧栏 ============ */
.side-panel{
  background:var(--c-glass);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-1);backdrop-filter:blur(16px) saturate(140%);
  margin-bottom:24px;
}
.side-panel h3{
  font-size:14px;font-weight:600;color:var(--t1);letter-spacing:.04em;
  margin-bottom:16px;display:flex;align-items:center;gap:8px;
}
.side-panel h3 i{color:var(--c-primary);font-size:13px;}
.toc-list{position:relative;border-left:1px solid var(--c-line);padding-left:0;}
.toc-list li{margin-bottom:2px;}
.toc-list a{
  display:block;font-size:14px;line-height:1.6;color:var(--t2);
  padding:8px 10px 8px 14px;border-radius:8px;
  transition:all .2s var(--ease);border-left:2px solid transparent;margin-left:-1px;
}
.toc-list a:hover{color:var(--t1);background:rgba(255,255,255,.03);}
.toc-list a.is-active{
  color:var(--c-primary);border-left-color:var(--c-primary);
  background:rgba(22,211,183,.08);
}
.mini-post{
  display:flex;gap:12px;align-items:flex-start;padding:10px 0;border-bottom:1px solid var(--c-line);
  transition:transform .2s var(--ease);
}
.mini-post:last-child{border-bottom:none;padding-bottom:0;}
.mini-post:hover{transform:translateX(3px);}
.mini-post img{
  width:80px;height:60px;object-fit:cover;border-radius:8px;flex-shrink:0;
  box-shadow:0 0 0 1px rgba(255,255,255,.06);
}
.mini-post h4{
  font-size:14px;font-weight:500;line-height:1.55;color:var(--t1);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.mini-post:hover h4{color:var(--c-primary);}
.mini-post time{font-size:12px;color:var(--t3);display:block;margin-top:6px;}

/* ============ 标签行 ============ */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin:44px 0 0;}

/* ============ 相关推荐 ============ */
.related-sec{padding:0 0 var(--gap-sec);}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px;}
.sec-head h2{font-size:26px;color:var(--t1);}
.sec-head .more{font-size:14px;color:var(--t2);display:inline-flex;align-items:center;gap:6px;}
.sec-head .more:hover{color:var(--c-primary);}
.post-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--c-glass);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  backdrop-filter:blur(16px) saturate(140%);
  transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.post-card:hover{transform:translateY(-2px);border-color:rgba(22,211,183,.3);}
.post-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;}
.post-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;box-shadow:inset 0 0 0 1px rgba(255,255,255,.06);transition:transform .3s var(--ease);}
.post-card:hover .post-thumb img{transform:scale(1.03);}
.post-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-body h3{font-size:17px;line-height:1.5;color:var(--t1);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-card:hover .post-body h3{color:var(--c-primary);}
.post-body p{font-size:14px;line-height:1.7;color:var(--t2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--t3);}

/* ============ FAQ ============ */
.faq-sec{padding:0 0 var(--gap-sec);}
.faq-list{max-width:880px;}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-item:first-child{border-top:1px solid var(--c-line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0;background:none;border:none;cursor:pointer;text-align:left;
  font-size:16px;font-weight:500;color:var(--t1);transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--c-primary);}
.faq-q .plus{
  flex-shrink:0;width:24px;height:24px;display:inline-flex;align-items:center;justify-content:center;
  color:var(--c-primary);font-size:14px;transition:transform .25s var(--ease);
}
.faq-item.is-open .faq-q .plus{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease);}
.faq-a p{font-size:15px;line-height:1.75;color:var(--t2);padding:0 0 20px;}

/* ============ 返回按钮组 ============ */
.back-group{display:flex;flex-wrap:wrap;gap:14px;padding-top:8px;}

/* ============ CTA 条 ============ */
.cta-bar{
  position:relative;overflow:hidden;border-radius:var(--r-cta);
  background:var(--c-glass);border:1px solid var(--c-line);
  box-shadow:var(--sh-1);backdrop-filter:blur(16px) saturate(140%);
  padding:48px 56px;margin-bottom:var(--gap-sec);
}
.cta-bar::before{
  content:"";position:absolute;left:-60px;bottom:-120px;width:420px;height:320px;
  background:radial-gradient(circle, rgba(22,211,183,.28), transparent 65%);
  pointer-events:none;
}
.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-inner h2{font-size:22px;color:var(--t1);margin-bottom:8px;}
.cta-inner p{font-size:14px;color:var(--t2);}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ============ 回到顶部 ============ */
.back-top{
  position:fixed;right:28px;bottom:28px;width:56px;height:56px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--c-glass);border:1px solid rgba(22,211,183,.4);color:var(--c-primary);
  backdrop-filter:blur(16px) saturate(140%);cursor:pointer;z-index:50;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s var(--ease),visibility .25s var(--ease),transform .25s var(--ease),box-shadow .2s var(--ease);
}
.back-top.is-on{opacity:1;visibility:visible;transform:translateY(0);}
.back-top:hover{box-shadow:var(--sh-glow);}

/* ============ 页脚 ============ */
.site-footer{position:relative;padding-top:64px;background:rgba(6,10,18,.72);border-top:1px solid var(--c-line);}
.footer-top-line{
  position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg, rgba(22,211,183,.4), transparent 70%);
}
.footer-brand p{font-size:14px;color:var(--t2);margin:16px 0 20px;max-width:300px;line-height:1.75;}
.footer-social{display:flex;gap:12px;}
.footer-social a{
  width:36px;height:36px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  color:var(--t2);background:rgba(255,255,255,.03);border:1px solid var(--c-line);font-size:15px;
  transition:all .2s var(--ease);
}
.footer-social a:hover{color:var(--c-primary);border-color:rgba(22,211,183,.4);transform:translateY(-2px);}
.footer-col{margin-bottom:32px;}
.footer-col h4{font-size:14px;font-weight:600;color:var(--t1);margin-bottom:18px;letter-spacing:.03em;}
.footer-col ul li{margin-bottom:12px;}
.footer-col ul li a{font-size:14px;color:var(--t2);line-height:1.7;}
.footer-col ul li a:hover{color:var(--c-primary);}
.footer-sub p{font-size:14px;color:var(--t2);margin-bottom:16px;line-height:1.75;}
.sub-form{display:flex;gap:10px;flex-wrap:wrap;}
.sub-form input{
  flex:1;min-width:0;height:40px;padding:0 14px;border-radius:var(--r-btn);
  background:rgba(6,11,20,.72);border:1px solid var(--c-line);color:var(--t1);font-size:14px;outline:none;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.sub-form input::placeholder{color:var(--t3);}
.sub-form input:focus{border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(22,211,183,.12);}
.footer-bottom{
  margin-top:36px;padding:22px 0 28px;border-top:1px solid var(--c-line);
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--t3);
}
.footer-bottom a{color:var(--t3);font-size:13px;}
.footer-bottom a:hover{color:var(--c-primary);}
.footer-bottom .links{display:flex;flex-wrap:wrap;gap:18px;}

/* ============ 动画 ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .36s var(--ease),transform .36s var(--ease);}
.reveal.is-in{opacity:1;transform:translateY(0);}

/* ============ 响应式 ============ */
@media screen and (max-width:1024px){
  .nav-main{display:none;}
  .cmd-search{display:none;}
  .nav-tools .icon-btn{display:none;}
  .nav-cta{display:none;}
  .nav-toggle{display:inline-flex;margin-left:auto;}
  .nav-inner{gap:16px;}
  :root{--gap-sec:56px;}
  .article-head h1{font-size:30px;}
  .cta-bar{padding:32px 26px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
}
@media screen and (max-width:640px){
  :root{--gap-sec:40px;}
  body{font-size:16px;}
  .article-head h1{font-size:26px;}
  .article-body{font-size:16px;line-height:1.8;}
  .article-body h2{font-size:21px;margin-top:32px;}
  .article-body h3{font-size:18px;}
  .site-header{height:56px;}
  .nav-inner{height:56px;}
  .brand-text{font-size:16px;}
  .article-main{padding:32px 0 var(--gap-sec);}
  .cta-actions{width:100%;flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .back-top{right:16px;bottom:16px;width:48px;height:48px;}
  .side-panel{padding:18px;}
  .sub-form input{width:100%;}
  .sub-form .btn{width:100%;}
}
@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category1 */
:root{
  --c-bg:#05080F;
  --c-bg-2:#0A101C;
  --c-glass:rgba(20,32,52,.58);
  --c-line:rgba(126,196,214,.14);
  --c-primary:#16D3B7;
  --c-primary-100:#7BF2E0;
  --c-primary-700:#0E9C87;
  --c-action:#FFB454;
  --c-warn:#FF7A6B;
  --t1:#E9F2F6;
  --t2:#A6B9C7;
  --t3:#6B7F8F;
  --r-card:16px;
  --r-sm:12px;
  --r-btn:10px;
  --r-cta:20px;
  --r-badge:6px;
  --sh-1:inset 0 1px 0 rgba(255,255,255,.05), 0 8px 24px rgba(0,0,0,.35);
  --sh-glow:0 0 0 1px rgba(22,211,183,.35), 0 10px 30px -8px rgba(22,211,183,.45);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-cn:-apple-system, BlinkMacSystemFont, "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
}

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

html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
}

body{
  margin:0;
  padding:0;
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.8;
  color:var(--t1);
  background-color:var(--c-bg);
  background-image:
    radial-gradient(900px 520px at 10% -10%, rgba(22,211,183,.10), transparent 62%),
    radial-gradient(700px 420px at 96% 6%, rgba(255,180,84,.05), transparent 65%),
    linear-gradient(rgba(126,196,214,.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(126,196,214,.028) 1px, transparent 1px);
  background-size:auto, auto, 64px 64px, 64px 64px;
  overflow-x:hidden;
}

h1,h2,h3,h4,h5,h6{
  margin:0;
  color:var(--t1);
  font-family:var(--font-cn);
  font-weight:600;
  line-height:1.3;
  letter-spacing:-.01em;
}

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

a{
  color:var(--c-primary);
  text-decoration:none;
  transition:color .2s ease, opacity .2s ease;
}
a:hover{color:var(--c-primary-100);}

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

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

button{font-family:inherit;}

input,textarea,select{font-family:inherit;font-size:15px;}

:focus-visible{
  outline:2px solid var(--c-primary);
  outline-offset:2px;
}

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

.grid-container{
  max-width:1280px;
  padding-left:24px;
  padding-right:24px;
  margin-left:auto;
  margin-right:auto;
}
@media (min-width:1441px){
  .grid-container{max-width:1360px;}
}
@media (max-width:640px){
  .grid-container{padding-left:16px;padding-right:16px;}
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:40px;
  padding:0 20px;
  border:1px solid transparent;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  letter-spacing:0;
  line-height:1;
  text-decoration:none;
  cursor:pointer;
  transition:transform .2s ease, filter .2s ease, box-shadow .2s ease, background-color .2s ease, border-color .2s ease, color .2s ease;
}
.btn:hover{text-decoration:none;}
.btn-sm{height:34px;padding:0 16px;font-size:14px;}
.btn-lg{height:48px;padding:0 28px;font-size:16px;}

.btn-primary{
  background-image:linear-gradient(135deg, #16D3B7 0%, #0E9C87 100%);
  color:#04140F;
  box-shadow:var(--sh-glow);
}
.btn-primary:hover{
  color:#04140F;
  filter:brightness(1.06);
  transform:translateY(-2px);
}
.btn-primary:active{transform:translateY(1px);}

.btn-action{
  background-image:linear-gradient(135deg, #FFB454 0%, #E39433 100%);
  color:#1A1003;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.35), 0 10px 26px -10px rgba(255,180,84,.6);
}
.btn-action:hover{
  color:#1A1003;
  filter:brightness(1.05);
  transform:translateY(-2px);
}
.btn-action:active{transform:translateY(1px);}

.btn-ghost{
  background-color:transparent;
  border-color:var(--c-line);
  color:var(--t1);
}
.btn-ghost:hover{
  background-color:var(--c-glass);
  border-color:rgba(22,211,183,.4);
  color:var(--t1);
  transform:translateY(-2px);
}

.btn-block{width:100%;}

/* ============ 卡片通用 ============ */
.card{
  position:relative;
  margin:0;
  background-color:var(--c-glass);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  color:var(--t1);
  transition:transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.card:hover{
  transform:translateY(-2px);
  border-color:rgba(22,211,183,.3);
}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background-color:transparent;
  border-bottom:1px solid transparent;
  transition:background-color .25s ease, border-color .25s ease, backdrop-filter .25s ease;
}
.site-header.is-scrolled{
  background-color:var(--c-glass);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border-bottom-color:var(--c-line);
}

.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  height:64px;
}

.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--t1);
  text-decoration:none;
}
.brand:hover{color:var(--t1);}
.brand-mark{width:28px;height:28px;flex:0 0 28px;}
.brand-text{
  font-size:17px;
  font-weight:700;
  letter-spacing:-.01em;
  white-space:nowrap;
}

.nav-main{
  display:flex;
  align-items:center;
  gap:28px;
  margin:0 auto;
}
.nav-link{
  position:relative;
  font-size:16px;
  font-weight:500;
  color:var(--t2);
  padding:6px 0;
  white-space:nowrap;
  transition:color .2s ease;
}
.nav-link:hover{color:var(--t1);}
.nav-link.is-active{color:var(--c-primary);}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:-4px;
  width:20px;
  height:2px;
  border-radius:2px;
  background-color:var(--c-primary);
  transform:translateX(-50%);
}

.header-right{
  display:flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
}

.command-search{
  position:relative;
  width:220px;
}
.command-search .fa-magnifying-glass{
  position:absolute;
  left:14px;
  top:50%;
  transform:translateY(-50%);
  font-size:13px;
  color:var(--t3);
  pointer-events:none;
}
.search-input{
  width:100%;
  height:40px;
  padding:0 46px 0 38px;
  background-color:rgba(5,8,15,.6);
  border:1px solid var(--c-line);
  border-radius:var(--r-btn);
  color:var(--t1);
  font-size:14px;
  transition:border-color .2s ease, box-shadow .2s ease;
}
.search-input::placeholder{color:var(--t3);}
.search-input:focus{
  outline:none;
  border-color:var(--c-primary);
  box-shadow:0 0 0 4px rgba(22,211,183,.12);
}
.kbd{
  position:absolute;
  right:10px;
  top:50%;
  transform:translateY(-50%);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:22px;
  height:20px;
  font-size:11px;
  color:var(--t3);
  background-color:rgba(126,196,214,.08);
  border:1px solid var(--c-line);
  border-radius:5px;
  pointer-events:none;
}

.icon-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:36px;
  height:36px;
  border-radius:50%;
  border:1px solid transparent;
  color:var(--t2);
  background-color:transparent;
  font-size:15px;
  transition:background-color .2s ease, color .2s ease, border-color .2s ease;
}
.icon-btn:hover{
  background-color:var(--c-glass);
  border-color:var(--c-line);
  color:var(--c-primary);
}

.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:40px;
  height:40px;
  border-radius:var(--r-btn);
  border:1px solid var(--c-line);
  background-color:var(--c-glass);
  color:var(--t1);
  font-size:16px;
  cursor:pointer;
}

.drawer-mask{
  position:fixed;
  inset:0;
  z-index:70;
  background-color:rgba(5,8,15,.6);
  -webkit-backdrop-filter:blur(4px);
  backdrop-filter:blur(4px);
  opacity:0;
  visibility:hidden;
  transition:opacity .25s ease, visibility .25s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}

.mobile-drawer{
  position:fixed;
  top:0;
  right:0;
  bottom:0;
  z-index:80;
  width:84vw;
  max-width:360px;
  padding:20px;
  background-color:rgba(10,16,28,.96);
  border-left:1px solid var(--c-line);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  transform:translateX(100%);
  transition:transform .3s var(--ease);
  overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:20px;
}
.drawer-close{
  width:36px;height:36px;
  border-radius:var(--r-btn);
  border:1px solid var(--c-line);
  background-color:transparent;
  color:var(--t2);
  cursor:pointer;
}
.drawer-search{
  position:relative;
  margin-bottom:18px;
}
.drawer-link{
  display:flex;
  align-items:center;
  height:48px;
  padding:0 4px;
  font-size:16px;
  color:var(--t2);
  border-bottom:1px solid var(--c-line);
}
.drawer-link.is-active{color:var(--c-primary);font-weight:600;}
.drawer-link:hover{color:var(--t1);}
.drawer-cta{margin-top:22px;}

/* ============ Banner ============ */
.page-banner{
  position:relative;
  height:320px;
  display:flex;
  align-items:flex-end;
  overflow:hidden;
  border-bottom:1px solid var(--c-line);
}
.banner-bg{
  position:absolute;
  inset:0;
  background-size:cover;
  background-position:center;
  transform:scale(1.02);
}
.banner-overlay{
  position:absolute;
  inset:0;
  background-color:rgba(5,8,15,.6);
}
.banner-glow{
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(115deg, rgba(22,211,183,.22) 0%, rgba(22,211,183,0) 42%),
    radial-gradient(520px 320px at 8% 100%, rgba(22,211,183,.22), transparent 68%);
}
.banner-inner{
  position:relative;
  z-index:2;
  padding-bottom:44px;
  width:100%;
}
.banner-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:24px;
  padding:0 10px;
  margin-bottom:16px;
  font-size:12px;
  letter-spacing:.04em;
  color:var(--c-primary);
  background-color:rgba(22,211,183,.12);
  border-radius:var(--r-badge);
}
.page-banner h1{
  font-size:52px;
  font-weight:700;
  line-height:1.15;
  letter-spacing:-.02em;
  margin-bottom:14px;
  max-width:820px;
}
.page-banner h1 .hl{
  background-image:linear-gradient(120deg, var(--c-primary), var(--c-primary-100));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.banner-sub{
  max-width:680px;
  font-size:16.5px;
  line-height:1.8;
  color:var(--t2);
  margin:0;
}

/* ============ 面包屑 ============ */
.crumb-bar{
  padding:20px 0 0;
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--t3);
  margin:0;
}
.breadcrumb li{display:flex;align-items:center;gap:8px;}
.breadcrumb li:not(:last-child)::after{
  content:"/";
  color:rgba(22,211,183,.4);
}
.breadcrumb a{color:var(--t3);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .current{
  color:var(--t2);
  max-width:24ch;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}

/* ============ 主体布局 ============ */
.section{
  padding-top:48px;
  padding-bottom:8px;
}
.section-block{
  padding-top:56px;
  scroll-margin-top:96px;
}
.section-block:first-child{padding-top:0;}

.side-nav{
  position:sticky;
  top:88px;
  padding:20px;
  margin-bottom:24px;
}
.side-title{
  font-size:14px;
  font-weight:600;
  color:var(--t3);
  letter-spacing:.06em;
  margin-bottom:12px;
}
.side-link{
  position:relative;
  display:flex;
  align-items:center;
  height:44px;
  padding-left:14px;
  font-size:15px;
  color:var(--t2);
  border-bottom:1px solid rgba(126,196,214,.08);
  transition:color .2s ease, background-color .2s ease;
}
.side-link:last-child{border-bottom:none;}
.side-link::before{
  content:"";
  position:absolute;
  left:0;
  top:50%;
  width:3px;
  height:0;
  border-radius:2px;
  background-color:var(--c-primary);
  transform:translateY(-50%);
  transition:height .2s ease;
}
.side-link:hover{color:var(--t1);}
.side-link.is-active{color:var(--c-primary);}
.side-link.is-active::before{height:20px;}

.side-tip{
  margin-top:18px;
  padding:16px;
  border-radius:var(--r-sm);
  background-color:rgba(22,211,183,.07);
  border:1px solid rgba(22,211,183,.2);
}
.side-tip h4{
  font-size:14px;
  font-weight:600;
  color:var(--t1);
  margin-bottom:6px;
}
.side-tip p{
  font-size:13px;
  line-height:1.7;
  color:var(--t3);
  margin:0;
}

.block-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:24px;
}
.block-title{
  font-size:34px;
  font-weight:600;
  line-height:1.25;
  letter-spacing:-.01em;
}
.block-desc{
  margin-top:10px;
  font-size:15px;
  color:var(--t2);
  max-width:720px;
}
.block-link{
  flex:0 0 auto;
  font-size:14px;
  color:var(--c-primary);
  white-space:nowrap;
}
.block-link:hover{color:var(--c-primary-100);}

/* ============ 指南卡片 ============ */
.guide-card{
  overflow:hidden;
  margin-bottom:24px;
  display:flex;
  flex-direction:column;
}
.card-media{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  border-radius:var(--r-card) var(--r-card) 0 0;
}
.card-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .3s var(--ease);
}
.card-media::after{
  content:"";
  position:absolute;
  inset:0;
  border:1px solid rgba(255,255,255,.06);
  border-radius:var(--r-card) var(--r-card) 0 0;
  pointer-events:none;
}
.guide-card:hover .card-media img{transform:scale(1.03);}
.card-body{
  padding:20px 22px 22px;
  display:flex;
  flex-direction:column;
  flex:1 1 auto;
}
.card-body h3{
  font-size:19px;
  font-weight:600;
  margin-bottom:10px;
}
.card-body p{
  font-size:15px;
  line-height:1.75;
  color:var(--t2);
  margin-bottom:16px;
}
.tag-row{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:auto;
}
.tag{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  font-size:12px;
  line-height:1;
  border-radius:var(--r-badge);
  background-color:rgba(22,211,183,.12);
  color:var(--c-primary);
  white-space:nowrap;
}
.tag-muted{
  background-color:rgba(107,127,143,.16);
  color:var(--t2);
}

/* ============ 信息准备 ============ */
.info-panel{
  padding:28px;
  margin-bottom:24px;
}
.info-panel h3{
  font-size:22px;
  margin-bottom:14px;
}
.info-list li{
  display:flex;
  gap:12px;
  padding:14px 0;
  border-bottom:1px solid rgba(126,196,214,.1);
  font-size:15px;
  line-height:1.75;
  color:var(--t2);
}
.info-list li:last-child{border-bottom:none;padding-bottom:0;}
.info-list i{
  margin-top:6px;
  font-size:15px;
  color:var(--c-primary);
  flex:0 0 auto;
}
.info-list strong{
  display:block;
  color:var(--t1);
  font-weight:600;
  font-size:15px;
  margin-bottom:2px;
}
.figure-media{
  position:relative;
  border-radius:var(--r-sm);
  overflow:hidden;
  border:1px solid rgba(255,255,255,.06);
}
.figure-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
}

/* ============ 步骤 ============ */
.steps{
  display:grid;
  grid-template-columns:repeat(2, minmax(0,1fr));
  gap:20px;
}
.step-item{
  position:relative;
  padding:24px 24px 24px 76px;
  border-radius:var(--r-card);
  background-color:var(--c-glass);
  border:1px solid var(--c-line);
  box-shadow:var(--sh-1);
  transition:border-color .2s ease, transform .2s ease;
}
.step-item:hover{
  border-color:rgba(22,211,183,.3);
  transform:translateY(-2px);
}
.step-num{
  position:absolute;
  left:24px;
  top:24px;
  width:32px;
  height:32px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:14px;
  font-weight:700;
  color:var(--c-primary);
  border-radius:50%;
  border:1px solid rgba(22,211,183,.4);
  background-color:rgba(22,211,183,.1);
}
.step-item h3{
  font-size:17px;
  font-weight:600;
  margin-bottom:8px;
}
.step-item p{
  font-size:15px;
  line-height:1.75;
  color:var(--t2);
  margin:0;
}

/* ============ 排查清单 ============ */
.check-list{
  display:grid;
  gap:12px;
}
.check-item{
  display:flex;
  gap:14px;
  padding:18px 20px;
  border-radius:var(--r-sm);
  background-color:rgba(20,32,52,.42);
  border:1px solid var(--c-line);
  transition:border-color .2s ease;
}
.check-item:hover{border-color:rgba(22,211,183,.28);}
.check-item i{
  color:var(--c-primary);
  font-size:16px;
  margin-top:5px;
  flex:0 0 auto;
}
.check-item h4{
  font-size:16px;
  font-weight:600;
  margin-bottom:6px;
}
.check-item p{
  font-size:14.5px;
  line-height:1.75;
  color:var(--t2);
  margin:0;
}

/* ============ FAQ ============ */
.faq-list{
  border-top:1px solid var(--c-line);
}
.faq-item{
  border-bottom:1px solid var(--c-line);
}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 4px;
  font-size:16px;
  font-weight:500;
  color:var(--t1);
  cursor:pointer;
  list-style:none;
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--c-primary);}
.faq-icon{
  flex:0 0 auto;
  font-size:14px;
  color:var(--c-primary);
  transition:transform .25s var(--ease);
}
.faq-item[open] .faq-icon{transform:rotate(45deg);}
.faq-answer{
  padding:0 4px 20px;
  font-size:15px;
  line-height:1.78;
  color:var(--t2);
  max-width:820px;
}

/* ============ 相关内容推荐 ============ */
.rec-card{
  display:flex;
  gap:16px;
  align-items:flex-start;
  padding:18px;
  margin-bottom:24px;
}
.rec-thumb{
  flex:0 0 96px;
  width:96px;
  aspect-ratio:4/3;
  border-radius:var(--r-sm);
  overflow:hidden;
  border:1px solid rgba(255,255,255,.06);
}
.rec-thumb img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .3s var(--ease);
}
.rec-card:hover .rec-thumb img{transform:scale(1.05);}
.rec-body h3{
  font-size:16px;
  font-weight:600;
  margin-bottom:8px;
  line-height:1.5;
}
.rec-body p{
  font-size:14px;
  line-height:1.7;
  color:var(--t2);
  margin:0 0 10px;
}

/* ============ CTA 条 ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  padding:48px 56px;
  border-radius:var(--r-cta);
  background-color:var(--c-glass);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border:1px solid var(--c-line);
  box-shadow:var(--sh-1);
  margin-top:56px;
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(560px 320px at 14% 120%, rgba(22,211,183,.24), transparent 68%);
  pointer-events:none;
}
.cta-inner{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
}
.cta-text h2{
  font-size:26px;
  font-weight:600;
  margin-bottom:10px;
}
.cta-text p{
  font-size:14px;
  color:var(--t2);
  margin:0;
}
.cta-actions{
  display:flex;
  align-items:center;
  gap:14px;
  flex:0 0 auto;
}
.cta-link{
  font-size:14px;
  color:var(--t2);
  white-space:nowrap;
}
.cta-link:hover{color:var(--c-primary);}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  margin-top:88px;
  padding-top:0;
  background-color:var(--c-bg-2);
  border-top:1px solid transparent;
}
.footer-top-line{
  height:1px;
  background-image:linear-gradient(90deg, rgba(22,211,183,.4), rgba(22,211,183,0));
}
.site-footer .grid-container{
  padding-top:56px;
  padding-bottom:24px;
}
.footer-brand p{
  font-size:14px;
  line-height:1.8;
  color:var(--t2);
  margin:16px 0 18px;
  max-width:320px;
}
.footer-social{
  display:flex;
  gap:12px;
}
.footer-social a{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:36px;
  height:36px;
  border-radius:50%;
  border:1px solid var(--c-line);
  color:var(--t2);
  font-size:15px;
  transition:color .2s ease, border-color .2s ease, background-color .2s ease;
}
.footer-social a:hover{
  color:var(--c-primary);
  border-color:rgba(22,211,183,.4);
  background-color:rgba(22,211,183,.08);
}
.footer-col h4{
  font-size:14px;
  font-weight:600;
  color:var(--t1);
  margin-bottom:16px;
}
.footer-col ul li{margin-bottom:12px;}
.footer-col ul li a{
  font-size:14px;
  color:var(--t2);
  line-height:2;
}
.footer-col ul li a:hover{color:var(--c-primary);}
.footer-note{
  font-size:14px;
  line-height:1.75;
  color:var(--t2);
  margin-bottom:16px;
}
.subscribe-form{
  display:grid;
  grid-template-columns:1fr auto;
  gap:10px;
}
.subscribe-form input{
  height:40px;
  padding:0 14px;
  width:100%;
  background-color:rgba(5,8,15,.6);
  border:1px solid var(--c-line);
  border-radius:var(--r-btn);
  color:var(--t1);
  font-size:14px;
  transition:border-color .2s ease, box-shadow .2s ease;
}
.subscribe-form input::placeholder{color:var(--t3);}
.subscribe-form input:focus{
  outline:none;
  border-color:var(--c-primary);
  box-shadow:0 0 0 4px rgba(22,211,183,.12);
}
.form-hint{
  grid-column:1 / -1;
  font-size:13px;
  color:var(--t3);
  line-height:1.6;
  margin:0;
}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-top:40px;
  padding-top:20px;
  border-top:1px solid var(--c-line);
  font-size:13px;
  color:var(--t3);
}
.footer-bottom p{margin:0;font-size:13px;color:var(--t3);}
.footer-bottom a{color:var(--t3);}
.footer-bottom a:hover{color:var(--c-primary);}

/* ============ 动效 ============ */
.reveal{
  opacity:0;
  transform:translateY(16px);
  transition:opacity .36s var(--ease), transform .36s var(--ease);
}
.reveal.is-visible{
  opacity:1;
  transform:translateY(0);
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .nav-main{display:none;}
  .command-search{display:none;}
  .header-right .icon-btn{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{height:56px;gap:16px;}
  .block-title{font-size:26px;}
  .page-banner h1{font-size:34px;}
  .page-banner{height:280px;}
  .side-nav{position:static;top:auto;}
  .cta-band{padding:36px 28px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;flex-wrap:wrap;}
  .steps{grid-template-columns:1fr;}
}

@media (max-width:640px){
  body{font-size:16px;}
  .page-banner{height:220px;align-items:flex-end;}
  .banner-inner{padding-bottom:28px;}
  .page-banner h1{font-size:30px;margin-bottom:10px;}
  .banner-sub{font-size:15px;}
  .banner-badge{height:22px;font-size:12px;}
  .section{padding-top:32px;}
  .section-block{padding-top:40px;}
  .block-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .block-title{font-size:24px;}
  .info-panel{padding:20px;}
  .step-item{padding:20px 20px 20px 68px;}
  .step-num{left:20px;top:20px;}
  .cta-band{padding:28px 22px;margin-top:40px;}
  .cta-text h2{font-size:22px;}
  .cta-actions .btn{width:100%;}
  .rec-card{padding:16px;}
  .rec-thumb{flex:0 0 80px;width:80px;}
  .subscribe-form{grid-template-columns:1fr;}
  .subscribe-form .btn{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .site-footer{margin-top:56px;}
}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    transition-duration:.001ms !important;
  }
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category3 */
:root{
  --c-bg:#05080F;
  --c-bg-2:#0A101C;
  --c-glass:rgba(20,32,52,.58);
  --c-line:rgba(126,196,214,.14);
  --c-primary:#16D3B7;
  --c-primary-100:#7BF2E0;
  --c-primary-700:#0E9C87;
  --c-action:#FFB454;
  --c-warn:#FF7A6B;
  --t1:#E9F2F6;
  --t2:#A6B9C7;
  --t3:#6B7F8F;
  --r-card:16px;
  --r-sm:12px;
  --r-btn:10px;
  --r-cta:20px;
  --r-badge:6px;
  --sh-1:inset 0 1px 0 rgba(255,255,255,.05), 0 8px 24px rgba(0,0,0,.35);
  --sh-glow:0 0 0 1px rgba(22,211,183,.35), 0 10px 30px -8px rgba(22,211,183,.45);
  --sp:8px;
  --font-cn:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--t1);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  letter-spacing:.005em;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    linear-gradient(rgba(126,196,214,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(126,196,214,.03) 1px, transparent 1px);
  background-size:64px 64px;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary-100);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--t1);letter-spacing:-.01em;}
p{margin:0 0 16px;color:var(--t2);}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px;border-radius:4px;}

.grid-container{max-width:1280px;padding-left:24px;padding-right:24px;margin-left:auto;margin-right:auto;}
@media screen and (min-width:1440px){.grid-container{max-width:1360px;}}
@media screen and (max-width:640px){.grid-container{padding-left:16px;padding-right:16px;}}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:transparent;
  transition:background .28s ease, backdrop-filter .28s ease, border-color .28s ease;
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:var(--c-glass);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom-color:var(--c-line);
}
.nav-wrap{
  display:flex;align-items:center;gap:24px;
  height:64px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{width:28px;height:28px;flex:0 0 28px;}
.brand-text{font-size:16px;font-weight:700;letter-spacing:-.01em;color:var(--t1);white-space:nowrap;}
.nav-main{display:flex;align-items:center;gap:28px;margin-left:12px;flex:1 1 auto;}
.nav-link{
  position:relative;
  font-size:16px;font-weight:500;color:var(--t2);
  padding:6px 0;white-space:nowrap;
  transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:-2px;
  width:0;height:2px;background:var(--c-primary);border-radius:2px;
  transform:translateX(-50%);transition:width .2s ease;
}
.nav-link:hover{color:var(--t1);}
.nav-link.is-active{color:var(--c-primary);}
.nav-link.is-active::after{width:20px;}
.nav-right{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.command-search{
  position:relative;display:flex;align-items:center;
  width:220px;height:40px;
  background:rgba(10,16,28,.85);
  border:1px solid var(--c-line);border-radius:var(--r-btn);
  padding:0 36px 0 38px;
  transition:border-color .2s ease, box-shadow .2s ease;
}
.command-search:focus-within{
  border-color:var(--c-primary);
  box-shadow:0 0 0 4px rgba(22,211,183,.12);
}
.command-search .fa-magnifying-glass{
  position:absolute;left:14px;top:50%;transform:translateY(-50%);
  font-size:14px;color:var(--t3);
}
.command-search input{
  width:100%;height:100%;border:0;background:transparent;
  color:var(--t1);font-size:14px;outline:none;
}
.command-search input::placeholder{color:var(--t3);}
.command-search .kbd{
  position:absolute;right:8px;top:50%;transform:translateY(-50%);
  width:22px;height:20px;line-height:20px;text-align:center;
  font-size:11px;color:var(--t3);
  border:1px solid var(--c-line);border-radius:4px;
  background:rgba(255,255,255,.03);
}
.icon-btn{
  width:36px;height:36px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  color:var(--t2);border:1px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.icon-btn:hover{background:rgba(126,196,214,.1);color:var(--t1);border-color:var(--c-line);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 20px;
  font-size:14px;font-weight:600;line-height:1;
  border-radius:var(--r-btn);border:1px solid transparent;
  cursor:pointer;white-space:nowrap;
  transition:transform .2s ease, box-shadow .2s ease, filter .2s ease, background .2s ease, border-color .2s ease;
}
.btn-primary{
  background:linear-gradient(135deg,#16D3B7 0%,#0E9C87 100%);
  color:#03110E;
  box-shadow:var(--sh-glow), inset 0 1px 0 rgba(255,255,255,.35);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);color:#03110E;box-shadow:0 0 0 1px rgba(22,211,183,.5),0 14px 34px -8px rgba(22,211,183,.6);}
.btn-primary:active{transform:translateY(1px);filter:brightness(.96);}
.btn-ghost{
  background:transparent;color:var(--t1);border-color:var(--c-line);
}
.btn-ghost:hover{background:var(--c-glass);border-color:rgba(22,211,183,.35);color:var(--t1);transform:translateY(-2px);}
.btn-action{
  background:linear-gradient(135deg,#FFB454 0%,#F09234 100%);
  color:#221302;
  box-shadow:0 0 0 1px rgba(255,180,84,.35), 0 10px 26px -10px rgba(255,180,84,.6), inset 0 1px 0 rgba(255,255,255,.4);
}
.btn-action:hover{filter:brightness(1.06);transform:translateY(-2px);color:#221302;}
.btn-block{width:100%;}
.nav-toggle{
  display:none;width:40px;height:40px;
  align-items:center;justify-content:center;
  border-radius:var(--r-btn);border:1px solid var(--c-line);
  background:rgba(126,196,214,.06);color:var(--t1);cursor:pointer;
}

/* 移动抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(5,8,15,.6);
  backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:70;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:84vw;max-width:360px;
  background:#080D16;border-left:1px solid var(--c-line);
  transform:translateX(102%);transition:transform .3s cubic-bezier(.22,.61,.36,1);
  z-index:80;padding:20px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer .drawer-title{
  display:flex;align-items:center;justify-content:space-between;
  font-size:14px;font-weight:600;color:var(--t1);margin-bottom:16px;
}
.drawer .drawer-close{background:none;border:1px solid var(--c-line);color:var(--t1);width:32px;height:32px;border-radius:8px;cursor:pointer;}
.drawer-list a{
  display:flex;align-items:center;height:48px;
  color:var(--t2);font-size:15px;border-bottom:1px solid var(--c-line);
}
.drawer-list a.is-active{color:var(--c-primary);}
.drawer .btn{margin-top:20px;}

@media screen and (max-width:1024px){
  .nav-main{display:none;}
  .command-search{width:260px;}
  .nav-toggle{display:flex;}
  .nav-right .desk-cta{display:none;}
  .nav-wrap{height:56px;gap:12px;}
}
@media screen and (max-width:640px){
  .command-search{display:none;}
  .nav-right .icon-btn{display:none;}
  .brand-text{font-size:15px;}
}

/* ============ Banner ============ */
.page-banner{
  position:relative;overflow:hidden;
  min-height:320px;display:flex;align-items:flex-end;
  background:#0A101C url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  border-bottom:1px solid var(--c-line);
}
.page-banner::before{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(180deg, rgba(5,8,15,.35) 0%, rgba(5,8,15,.86) 100%),
    linear-gradient(100deg, rgba(22,211,183,.20) 0%, rgba(22,211,183,0) 46%),
    rgba(5,8,15,.55);
}
.page-banner::after{
  content:"";position:absolute;left:-8%;bottom:-40%;width:52%;height:120%;
  background:radial-gradient(circle at 50% 50%, rgba(22,211,183,.20) 0%, rgba(22,211,183,0) 68%);
  pointer-events:none;
}
.banner-inner{position:relative;z-index:2;padding:96px 0 40px;width:100%;}
.banner-tag{
  display:inline-flex;align-items:center;gap:8px;height:24px;padding:0 12px;
  border-radius:var(--r-badge);font-size:12px;font-weight:600;
  background:rgba(22,211,183,.12);color:var(--c-primary);
  margin-bottom:16px;
}
.banner-inner h1{
  font-size:52px;font-weight:700;line-height:1.15;letter-spacing:-.02em;
  margin-bottom:14px;
}
.banner-inner h1 .hl{
  background:linear-gradient(120deg,#16D3B7 0%,#7BF2E0 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.banner-sub{font-size:16px;color:var(--t2);max-width:620px;margin:0;}
.crumbs{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--t3);padding:18px 0 0;
}
.crumbs a{color:var(--t3);}
.crumbs a:hover{color:var(--c-primary);}
.crumbs .sep{color:rgba(22,211,183,.4);}
.crumbs .cur{color:var(--t2);max-width:24ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

@media screen and (max-width:1024px){
  .banner-inner h1{font-size:38px;}
  .banner-inner{padding:80px 0 32px;}
}
@media screen and (max-width:640px){
  .page-banner{min-height:220px;}
  .banner-inner h1{font-size:30px;line-height:1.22;}
  .banner-inner{padding:64px 0 28px;}
}

/* ============ 板块通用 ============ */
.section{padding:88px 0;position:relative;z-index:1;}
.section-alt{background:var(--c-bg-2);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.section-head h2{font-size:34px;font-weight:600;line-height:1.25;}
.section-head .more{font-size:14px;color:var(--c-primary);white-space:nowrap;}
.section-head .more:hover{color:var(--c-primary-100);}
.section-head p{margin:8px 0 0;font-size:14px;color:var(--t3);}
@media screen and (max-width:1024px){
  .section{padding:56px 0;}
  .section-head h2{font-size:26px;}
}
@media screen and (max-width:640px){
  .section{padding:40px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px;}
  .section-head h2{font-size:24px;}
}

/* ============ 窄栏手风琴区 ============ */
.narrow{max-width:880px;margin:0 auto;}
.lede{
  font-size:16.5px;line-height:1.85;color:var(--t2);
  padding-bottom:32px;border-bottom:1px solid var(--c-line);margin-bottom:8px;
}
.lede strong{color:var(--t1);font-weight:600;}
.acc-list{list-style:none;margin:0;padding:0;border-top:1px solid var(--c-line);}
.acc-item{border-bottom:1px solid var(--c-line);}
.acc-head{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 4px;background:none;border:0;cursor:pointer;text-align:left;
  color:var(--t1);font-size:16px;font-weight:500;line-height:1.6;
  transition:color .2s ease;
}
.acc-head:hover{color:var(--c-primary);}
.acc-head .plus{
  flex:0 0 24px;width:24px;height:24px;position:relative;
  transition:transform .25s cubic-bezier(.22,.61,.36,1);
}
.acc-head .plus::before,
.acc-head .plus::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--c-primary);border-radius:2px;
  transform:translate(-50%,-50%);
}
.acc-head .plus::before{width:14px;height:1.6px;}
.acc-head .plus::after{width:1.6px;height:14px;}
.acc-item.is-open .acc-head{color:var(--c-primary);}
.acc-item.is-open .acc-head .plus{transform:rotate(45deg);}
.acc-body{
  max-height:0;overflow:hidden;
  transition:max-height .32s cubic-bezier(.22,.61,.36,1);
}
.acc-body-inner{padding:0 4px 24px;font-size:15px;line-height:1.75;color:var(--t2);}
.acc-body-inner p{font-size:15px;line-height:1.75;margin:0 0 12px;}
.acc-body-inner ul{margin:0 0 12px;}
.acc-body-inner li{
  position:relative;padding-left:18px;margin-bottom:8px;
  font-size:15px;line-height:1.75;color:var(--t2);
}
.acc-body-inner li::before{
  content:"";position:absolute;left:0;top:11px;
  width:8px;height:8px;border-radius:2px;background:var(--c-primary);
}
.acc-body-inner .tip{
  display:block;margin-top:4px;padding:12px 16px;border-left:3px solid var(--c-primary);
  background:var(--c-glass);border-radius:0 var(--r-sm) var(--r-sm) 0;
  font-size:14px;color:var(--t2);
}

/* ============ 横向小卡 ============ */
.mini-row{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.mini-card{
  display:flex;gap:16px;align-items:center;
  background:var(--c-glass);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:16px;
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--sh-1);
  transition:transform .2s ease,border-color .2s ease;
}
.mini-card:hover{transform:translateY(-2px);border-color:rgba(22,211,183,.3);}
.mini-card img{
  width:96px;height:72px;flex:0 0 96px;object-fit:cover;
  border-radius:var(--r-sm);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.06);
}
.mini-card h3{font-size:17px;font-weight:600;margin-bottom:6px;line-height:1.4;}
.mini-card p{font-size:13px;line-height:1.6;color:var(--t3);margin:0;}
@media screen and (max-width:1024px){
  .mini-row{grid-template-columns:1fr;}
}

/* ============ 卡片 / 资讯 ============ */
.card{
  display:flex;flex-direction:column;height:100%;
  background:var(--c-glass);border:1px solid var(--c-line);
  border-radius:var(--r-card);overflow:hidden;
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--sh-1);
  transition:transform .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-2px);border-color:rgba(22,211,183,.3);}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--c-bg-2);}
.card-media img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .25s ease;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.06);
}
.card:hover .card-media img{transform:scale(1.03);}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto;}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;
  border-radius:var(--r-badge);font-size:12px;font-weight:600;
  background:rgba(22,211,183,.12);color:var(--c-primary);
  margin-bottom:12px;align-self:flex-start;
}
.badge-mute{background:rgba(107,127,143,.16);color:var(--t2);}
.card-body h3{
  font-size:18px;font-weight:600;line-height:1.45;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-body h3 a{color:var(--t1);}
.card-body h3 a:hover{color:var(--c-primary);}
.card-body .desc{
  font-size:14px;line-height:1.7;color:var(--t2);margin:0 0 16px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{
  margin-top:auto;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(--t3);
}
.card-foot .go{color:var(--c-primary);font-weight:600;font-size:13px;}

/* ============ CTA 条 ============ */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--r-cta);
  background:var(--c-glass);
  border:1px solid var(--c-line);
  padding:48px 56px;
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  box-shadow:var(--sh-1);
  display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.cta-band::after{
  content:"";position:absolute;right:-10%;top:-60%;width:46%;height:220%;
  background:radial-gradient(circle at 50% 50%, rgba(22,211,183,.22) 0%, rgba(22,211,183,0) 70%);
  pointer-events:none;
}
.cta-band .cta-text{position:relative;z-index:2;max-width:640px;}
.cta-band h2{font-size:26px;font-weight:600;line-height:1.3;margin-bottom:10px;}
.cta-band p{margin:0;font-size:14px;color:var(--t2);}
.cta-band .cta-btns{position:relative;z-index:2;display:flex;align-items:center;gap:16px;flex:0 0 auto;}
@media screen and (max-width:1024px){
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 32px;}
  .cta-band .cta-btns{width:100%;flex-wrap:wrap;}
}
@media screen and (max-width:640px){
  .cta-band{padding:28px 22px;}
  .cta-band h2{font-size:22px;}
  .cta-band .cta-btns{flex-direction:column;align-items:stretch;}
  .cta-band .cta-btns .btn{width:100%;}
}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;z-index:1;background:var(--c-bg-2);
  padding:64px 0 0;margin-top:0;
}
.footer-top-line{
  height:1px;width:100%;
  background:linear-gradient(90deg, rgba(22,211,183,.4) 0%, rgba(22,211,183,0) 100%);
}
.site-footer .grid-x{margin-top:48px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--t2);max-width:320px;}
.footer-social{display:flex;gap:14px;margin-top:18px;}
.footer-social a{
  width:24px;height:24px;display:flex;align-items:center;justify-content:center;
  color:var(--t3);font-size:16px;
}
.footer-social a:hover{color:var(--c-primary);}
.footer-col h4{font-size:14px;font-weight:600;color:var(--t1);margin-bottom:18px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{font-size:14px;color:var(--t2);}
.footer-col ul li a:hover{color:var(--c-primary);}
.subscribe-form{display:grid;grid-template-columns:1fr auto;gap:8px;margin-top:14px;}
.subscribe-form input{
  height:40px;padding:0 14px;font-size:14px;
  background:rgba(10,16,28,.85);border:1px solid var(--c-line);
  border-radius:var(--r-btn);color:var(--t1);outline:none;
  transition:border-color .2s ease, box-shadow .2s ease;
}
.subscribe-form input::placeholder{color:var(--t3);}
.subscribe-form input:focus{border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(22,211,183,.12);}
.footer-bottom{
  margin-top:48px;padding:20px 0;
  border-top:1px solid var(--c-line);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--t3);
}
.footer-bottom a{color:var(--t3);}
.footer-bottom a:hover{color:var(--c-primary);}
.footer-bottom .links{display:flex;flex-wrap:wrap;gap:18px;}
@media screen and (max-width:640px){
  .site-footer{padding-top:48px;}
  .footer-col{margin-top:32px;}
  .subscribe-form{grid-template-columns:1fr;}
  .subscribe-form .btn{width:100%;}
}

/* 进场动画 */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .36s cubic-bezier(.22,.61,.36,1),transform .36s cubic-bezier(.22,.61,.36,1);}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category2 */
:root{
  --c-bg:#05080F;--c-bg-2:#0A101C;--c-glass:rgba(20,32,52,.58);--c-line:rgba(126,196,214,.14);
  --c-primary:#16D3B7;--c-primary-100:#7BF2E0;--c-primary-700:#0E9C87;--c-action:#FFB454;--c-warn:#FF7A6B;
  --t1:#E9F2F6;--t2:#A6B9C7;--t3:#6B7F8F;
  --r-card:16px;--r-img:12px;--r-btn:10px;--r-cta:20px;--r-badge:6px;
  --sh-1:inset 0 1px 0 rgba(255,255,255,.05),0 8px 24px rgba(0,0,0,.35);
  --sh-glow:0 0 0 1px rgba(22,211,183,.35),0 10px 30px -8px rgba(22,211,183,.45);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-cn:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--c-bg);color:var(--t1);font-family:var(--font-cn);
  font-size:16.5px;line-height:1.8;-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:linear-gradient(rgba(126,196,214,.03) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(126,196,214,.03) 1px,transparent 1px);
  background-size:64px 64px;
}
body::after{
  content:"";position:fixed;left:-15%;top:-25%;width:58vw;height:58vw;border-radius:50%;
  background:radial-gradient(circle,rgba(22,211,183,.10),transparent 65%);pointer-events:none;z-index:0;
}
img{display:block;max-width:100%;height:auto;border-radius:var(--r-img);border:1px solid rgba(255,255,255,.06)}
a{color:var(--c-primary);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--c-primary-100)}
button,input{font-family:inherit;font-size:inherit}
button{cursor:pointer}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4{margin:0;font-weight:600;line-height:1.25;letter-spacing:-.01em}
p{margin:0}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
.grid-container{max-width:1280px;padding-left:24px;padding-right:24px;margin-left:auto;margin-right:auto}
@media screen and (min-width:1440px){.grid-container{max-width:1360px}}
@media screen and (max-width:640px){.grid-container{padding-left:16px;padding-right:16px}}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:100;background:transparent;border-bottom:1px solid transparent;transition:background .25s var(--ease),border-color .25s var(--ease),backdrop-filter .25s}
.site-header.is-scrolled{background:var(--c-glass);-webkit-backdrop-filter:blur(16px) saturate(140%);backdrop-filter:blur(16px) saturate(140%);border-bottom-color:var(--c-line)}
.header-inner{display:flex;align-items:center;height:64px;gap:24px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--t1);flex:0 0 auto}
.brand:hover{color:var(--t1)}
.brand-mark{width:28px;height:28px;flex:0 0 28px}
.brand-text{font-size:17px;font-weight:700;letter-spacing:-.01em;white-space:nowrap}
.nav-main{display:flex;align-items:center;gap:28px;margin:0 auto}
.nav-link{position:relative;font-size:16px;font-weight:500;color:var(--t2);padding:6px 0;white-space:nowrap;transition:color .2s var(--ease)}
.nav-link:hover{color:var(--t1)}
.nav-link.is-active{color:var(--c-primary)}
.nav-link.is-active::after{content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:-4px;width:20px;height:2px;background:var(--c-primary);border-radius:2px}
.header-tools{display:flex;align-items:center;gap:12px;flex:0 0 auto;margin-left:auto}
.command-search{position:relative;display:flex;align-items:center;width:220px;height:40px;background:rgba(8,14,24,.82);border:1px solid var(--c-line);border-radius:var(--r-btn);transition:border-color .2s,box-shadow .2s}
.command-search svg{position:absolute;left:12px;width:16px;height:16px;color:var(--t3)}
.command-search input{width:100%;height:100%;background:transparent;border:0;outline:0;color:var(--t1);font-size:14px;padding:0 46px 0 34px}
.command-search input::placeholder{color:var(--t3)}
.command-search:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(22,211,183,.12)}
.kbd{position:absolute;right:8px;display:inline-flex;align-items:center;justify-content:center;width:22px;height:20px;font-size:11px;color:var(--t3);background:rgba(126,196,214,.08);border:1px solid var(--c-line);border-radius:5px}
.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;color:var(--t2);background:transparent;border:1px solid transparent;transition:background .2s,color .2s,border-color .2s}
.icon-btn:hover{background:var(--c-glass);color:var(--t1);border-color:var(--c-line)}
.icon-btn svg{width:18px;height:18px}
.nav-toggle{display:none;width:40px;height:40px;align-items:center;justify-content:center;background:var(--c-glass);border:1px solid var(--c-line);border-radius:10px;color:var(--t1)}
.nav-toggle svg{width:18px;height:18px}
.drawer-mask{position:fixed;inset:0;background:rgba(5,8,15,.6);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);opacity:0;visibility:hidden;transition:opacity .25s;z-index:200}
.drawer-mask.is-open{opacity:1;visibility:visible}
.nav-drawer{position:fixed;top:0;right:0;bottom:0;width:84vw;max-width:360px;background:#080D17;border-left:1px solid var(--c-line);transform:translateX(102%);transition:transform .28s var(--ease);z-index:210;padding:20px;overflow-y:auto}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-close{width:40px;height:40px;border-radius:10px;background:var(--c-glass);border:1px solid var(--c-line);color:var(--t1)}
.drawer-search{display:flex;align-items:center;gap:10px;height:44px;padding:0 14px;background:rgba(8,14,24,.9);border:1px solid var(--c-line);border-radius:10px;margin-bottom:18px}
.drawer-search input{flex:1;background:transparent;border:0;outline:0;color:var(--t1);font-size:15px}
.drawer-search svg{width:18px;height:18px;color:var(--t3)}
.drawer-nav{display:flex;flex-direction:column;margin-bottom:24px}
.drawer-nav a{height:48px;display:flex;align-items:center;font-size:16px;color:var(--t2);border-bottom:1px solid var(--c-line);transition:color .2s}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--c-primary)}
.drawer-cta{width:100%}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;cursor:pointer;transition:transform .2s var(--ease),filter .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s}
.btn-primary{background:linear-gradient(135deg,var(--c-primary),var(--c-primary-700));color:#04120F;box-shadow:var(--sh-glow)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);color:#04120F}
.btn-primary:active{transform:translateY(1px)}
.btn-action{background:linear-gradient(135deg,#FFC773,var(--c-action));color:#20160A;box-shadow:0 0 0 1px rgba(255,180,84,.35),0 10px 30px -8px rgba(255,180,84,.45)}
.btn-action:hover{filter:brightness(1.06);transform:translateY(-2px);color:#20160A}
.btn-ghost{background:transparent;border-color:var(--c-line);color:var(--t1)}
.btn-ghost:hover{background:var(--c-glass);color:var(--t1);transform:translateY(-2px)}
.btn-sm{height:36px;padding:0 16px;font-size:14px}
.link-more{font-size:14px;font-weight:500;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px}
.link-more:hover{color:var(--c-primary-100)}

/* ============ 通用板块 ============ */
.section{position:relative;z-index:1;padding:88px 0}
.section-alt{background:var(--c-bg-2)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:40px}
.section-head h2{font-size:34px;color:var(--t1)}
.section-head .lead{margin-top:10px;font-size:15px;color:var(--t2);max-width:640px}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;font-size:12px;line-height:1;border-radius:var(--r-badge);background:rgba(22,211,183,.12);color:var(--c-primary);white-space:nowrap}
.badge-mute{background:rgba(107,127,143,.16);color:var(--t2)}

/* ============ Banner ============ */
.page-banner{position:relative;z-index:1;min-height:320px;display:flex;align-items:flex-end;padding:56px 0;overflow:hidden;
  background-image:linear-gradient(115deg,rgba(5,8,15,.9) 8%,rgba(5,8,15,.62) 60%,rgba(5,8,15,.86)),
  url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;border-bottom:1px solid var(--c-line)}
.page-banner::after{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(115deg,transparent 42%,rgba(22,211,183,.16) 56%,transparent 72%)}
.banner-inner{position:relative;z-index:2;max-width:760px}
.banner-inner h1{font-size:52px;font-weight:700;line-height:1.15;letter-spacing:-.02em;color:var(--t1)}
.banner-inner h1 em{font-style:normal;background:linear-gradient(100deg,var(--c-primary),var(--c-primary-100));-webkit-background-clip:text;background-clip:text;color:transparent}
.banner-inner .banner-sub{margin-top:16px;font-size:16px;color:var(--t2);max-width:620px}
.banner-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.banner-tag{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--t2);padding:4px 12px;border:1px solid var(--c-line);border-radius:999px;background:rgba(20,32,52,.5)}
.banner-tag i{color:var(--c-primary);font-size:12px}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--t3);padding:20px 0 0;flex-wrap:wrap}
.crumbs a{color:var(--t3)}
.crumbs a:hover{color:var(--c-primary)}
.crumbs .sep{color:rgba(22,211,183,.4)}
.crumbs .current{color:var(--t2);max-width:24ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ 指标小卡 ============ */
.metrics{margin-top:0}
.metric{position:relative;height:100%;padding:26px 24px;background:var(--c-glass);-webkit-backdrop-filter:blur(16px) saturate(140%);backdrop-filter:blur(16px) saturate(140%);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);transition:border-color .2s var(--ease),transform .2s var(--ease)}
.metric::before{content:"";position:absolute;left:24px;top:0;width:48px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--c-primary),transparent)}
.metric:hover{border-color:rgba(22,211,183,.3);transform:translateY(-2px)}
.metric-num{font-size:32px;font-weight:700;letter-spacing:-.02em;color:var(--c-primary);line-height:1.2}
.metric-desc{margin-top:8px;font-size:13px;color:var(--t2);line-height:1.6}
.metrics .cell{margin-bottom:24px}

/* ============ 交替图文 ============ */
.media-row{align-items:center;padding:40px 0;border-bottom:1px solid var(--c-line)}
.media-row:last-child{border-bottom:0}
.media-visual img{width:100%;aspect-ratio:16/11;object-fit:cover;box-shadow:0 18px 40px -18px rgba(0,0,0,.75)}
.media-body h3{font-size:22px;margin:14px 0 12px;color:var(--t1)}
.media-body p{font-size:15.5px;color:var(--t2)}
.tick-list{margin-top:18px;list-style:none}
.tick-list li{position:relative;padding-left:20px;font-size:15px;color:var(--t2);margin-bottom:8px}
.tick-list li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:2px;background:var(--c-primary);opacity:.9}
@media screen and (min-width:1024px){
  .media-row.is-reverse .media-visual{order:2}
  .media-row.is-reverse .media-body{order:1}
}
@media screen and (max-width:1023px){
  .media-row{padding:32px 0}
  .media-visual{margin-bottom:20px}
}

/* ============ 保障条 ============ */
.assure-bar{background:var(--c-glass);-webkit-backdrop-filter:blur(16px) saturate(140%);backdrop-filter:blur(16px) saturate(140%);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden}
.assure-item{padding:28px 24px;display:flex;flex-direction:column;gap:10px}
.assure-icon{width:32px;height:32px;color:var(--c-primary)}
.assure-icon svg{width:32px;height:32px}
.assure-item h4{font-size:15px;color:var(--t1)}
.assure-item p{font-size:13px;color:var(--t2);line-height:1.6}
@media screen and (min-width:1024px){
  .assure-item{border-left:1px solid var(--c-line)}
  .assure-bar .cell:first-child .assure-item{border-left:0}
}
@media screen and (max-width:1023px){
  .assure-item{border-bottom:1px solid var(--c-line)}
  .assure-bar .cell:last-child .assure-item{border-bottom:0}
}

/* ============ FAQ ============ */
.faq-card{height:100%;padding:26px 24px;background:var(--c-glass);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);transition:border-color .2s var(--ease),transform .2s var(--ease)}
.faq-card:hover{border-color:rgba(22,211,183,.3);transform:translateY(-2px)}
.faq-card h3{font-size:17px;color:var(--t1);display:flex;gap:10px;align-items:flex-start}
.faq-card h3 span{color:var(--c-primary);font-weight:700;flex:0 0 auto}
.faq-card p{margin-top:12px;font-size:15px;color:var(--t2)}
.faq-grid .cell{margin-bottom:24px}

/* ============ 推荐卡 ============ */
.rec-card{display:flex;flex-direction:column;height:100%;background:var(--c-glass);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);color:inherit;transition:transform .2s var(--ease),border-color .2s var(--ease)}
.rec-card:hover{transform:translateY(-2px);border-color:rgba(22,211,183,.3);color:inherit}
.rec-thumb{position:relative;overflow:hidden}
.rec-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;border:0;border-radius:0;transition:transform .25s var(--ease)}
.rec-card:hover .rec-thumb img{transform:scale(1.03)}
.rec-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.rec-body h3{font-size:17px;color:var(--t1)}
.rec-body p{font-size:14px;color:var(--t2);flex:1}
.rec-more{font-size:13px;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px}
.recommend-grid .cell{margin-bottom:24px}

/* ============ CTA ============ */
.cta-band{position:relative;display:flex;align-items:center;justify-content:space-between;gap:32px;padding:56px 48px;border-radius:var(--r-cta);background:var(--c-glass);border:1px solid var(--c-line);overflow:hidden;box-shadow:var(--sh-1)}
.cta-band::before{content:"";position:absolute;left:-8%;top:-60%;width:52%;height:220%;background:radial-gradient(circle,rgba(22,211,183,.18),transparent 62%);pointer-events:none}
.cta-copy{position:relative;z-index:2;max-width:620px}
.cta-copy h2{font-size:30px;color:var(--t1)}
.cta-copy p{margin-top:12px;font-size:14px;color:var(--t2)}
.cta-actions{position:relative;z-index:2;display:flex;align-items:center;gap:18px;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{position:relative;z-index:1;background:var(--c-bg-2);padding:64px 0 0;margin-top:8px}
.footer-top-line{height:1px;background:linear-gradient(90deg,rgba(22,211,183,.4),transparent 70%);margin-bottom:56px}
.footer-brand p{font-size:14px;color:var(--t2);margin-top:14px;max-width:300px}
.footer-social{display:flex;gap:12px;margin-top:18px}
.footer-social a{display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;color:var(--t2);font-size:18px;transition:color .2s}
.footer-social a:hover{color:var(--c-primary)}
.footer-col h4{font-size:14px;font-weight:600;color:var(--t1);margin-bottom:16px}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:var(--t2)}
.footer-col a:hover{color:var(--c-primary)}
.footer-form{display:grid;grid-template-columns:1fr auto;gap:10px}
.footer-form input{height:40px;background:rgba(8,14,24,.9);border:1px solid var(--c-line);border-radius:10px;color:var(--t1);padding:0 14px;font-size:14px;outline:0;transition:border-color .2s,box-shadow .2s;min-width:0}
.footer-form input::placeholder{color:var(--t3)}
.footer-form input:focus{border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(22,211,183,.12)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:48px;padding:20px 0 28px;border-top:1px solid var(--c-line)}
.footer-bottom p,.footer-bottom a{font-size:13px;color:var(--t3)}
.footer-bottom a:hover{color:var(--c-primary)}
.footer-bottom span{margin:0 8px;color:var(--t3)}
.footer-cols{margin-bottom:40px}

/* ============ 进场动效 ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .36s var(--ease),transform .36s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media screen and (max-width:1280px){
  .nav-main{gap:20px}
  .command-search{width:180px}
}
@media screen and (max-width:1024px){
  .nav-main{display:none}
  .command-search{width:260px}
  .header-tools .icon-btn{display:none}
  .nav-toggle{display:inline-flex}
  .banner-inner h1{font-size:34px}
  .section{padding:56px 0}
  .section-head h2{font-size:26px}
  .cta-band{padding:36px 28px;flex-direction:column;align-items:flex-start}
  .cta-copy h2{font-size:24px}
}
@media screen and (max-width:768px){
  .banner-inner h1{font-size:30px}
  .page-banner{min-height:220px;padding:40px 0}
  .footer-cols .cell{margin-bottom:32px}
}
@media screen and (max-width:640px){
  .command-search{display:none}
  .header-cta{display:none}
  .section{padding:40px 0}
  .section-head{margin-bottom:28px}
  .section-head h2{font-size:24px}
  .metric{padding:22px 18px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-form{grid-template-columns:1fr}
  .footer-form .btn{width:100%}
}
@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  .reveal{opacity:1;transform:none}
}