/* roulang page: index */
:root{
  --bg-deep:#05070F;
  --bg-base:#0A0F22;
  --bg-elev:#111834;
  --brand:#3FD9FF;
  --brand-2:#7A6BFF;
  --accent:#FFCB6B;
  --t1:#E9F1FF;
  --t2:#A7B6D6;
  --t3:#6F7EA0;
  --glass:rgba(255,255,255,.055);
  --glass-bd:rgba(120,190,255,.16);
  --ok:#38D39F;
  --warn:#FFB454;
  --err:#FF6B7A;
  --r-card:18px;
  --r-panel:24px;
  --r-btn:12px;
  --r-img:14px;
  --sh-1:0 18px 44px -22px rgba(0,0,0,.85);
  --sh-2:0 26px 56px -20px rgba(0,0,0,.9),0 0 0 1px rgba(63,217,255,.22);
  --ease:.24s cubic-bezier(.22,.61,.36,1);
  --sec:88px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--t1);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color var(--ease),opacity var(--ease);}
a:hover{color:#7fe7ff;}
button,input,textarea,select{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;color:var(--t1);font-weight:700;letter-spacing:.4px;}
p{margin:0 0 14px;}
ul{margin:0;padding:0;list-style:none;}
::selection{background:rgba(63,217,255,.28);}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

.rl-container{max-width:1200px;margin:0 auto;padding:0 20px;width:100%;}
.rl-section{padding:var(--sec) 0;position:relative;}
.rl-section--alt{background:linear-gradient(180deg,rgba(255,255,255,.02),rgba(255,255,255,0));}
.rl-sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.rl-sec-title{font-size:clamp(24px,2.6vw,32px);line-height:1.3;}
.rl-sec-sub{margin:10px 0 0;color:var(--t2);font-size:15px;max-width:640px;}
.rl-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;color:var(--brand);white-space:nowrap;}
.rl-link .rl-arrow{transition:transform var(--ease);}
.rl-link:hover .rl-arrow{transform:translateX(3px);}
.rl-eyebrow{display:inline-block;font-size:13px;letter-spacing:2px;color:var(--brand);text-transform:uppercase;margin-bottom:14px;}

/* 顶部信息条 */
.rl-topbar{height:36px;background:var(--bg-deep);border-bottom:1px solid rgba(80,140,220,.18);}
.rl-topbar__inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;}
.rl-topbar__left{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--t2);min-width:0;}
.rl-topbar__brand{color:var(--t1);font-weight:600;white-space:nowrap;}
.rl-topbar__divider{width:1px;height:14px;background:rgba(120,190,255,.25);}
.rl-topbar__tip{color:var(--t3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.rl-topbar__right{display:flex;align-items:center;gap:18px;font-size:13px;}
.rl-topbar__right a{color:var(--t2);}
.rl-topbar__right a:hover{color:var(--brand);}

/* 主导航 */
.rl-nav{position:sticky;top:0;z-index:1030;background:rgba(10,15,34,.72);backdrop-filter:blur(14px);border-bottom:1px solid transparent;transition:background var(--ease),border-color var(--ease);}
.rl-nav.is-scrolled{background:rgba(10,15,34,.92);border-bottom-color:rgba(120,190,255,.14);}
.rl-nav__inner{height:68px;display:flex;align-items:center;justify-content:space-between;gap:20px;}
.rl-brand{display:flex;align-items:center;gap:11px;color:var(--t1);font-size:19px;font-weight:700;letter-spacing:.5px;}
.rl-brand:hover{color:var(--t1);}
.rl-brand__icon{width:34px;height:34px;flex:0 0 34px;border-radius:11px;background:linear-gradient(135deg,rgba(63,217,255,.18),rgba(122,107,255,.18));border:1px solid var(--glass-bd);display:flex;align-items:center;justify-content:center;box-shadow:0 0 18px rgba(63,217,255,.18);}
.rl-brand__icon svg{width:20px;height:20px;}
.rl-menu{display:flex;align-items:center;gap:6px;}
.rl-menu a{position:relative;display:block;padding:10px 12px;font-size:15px;color:var(--t2);border-radius:10px;}
.rl-menu a::after{content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;background:var(--brand);border-radius:2px;opacity:0;transform:scaleX(.4);transition:all var(--ease);}
.rl-menu a:hover{color:var(--t1);}
.rl-menu a:hover::after{opacity:1;transform:scaleX(1);box-shadow:0 0 8px rgba(63,217,255,.75);}
.rl-menu a.active{color:var(--brand);}
.rl-menu a.active::after{opacity:1;transform:scaleX(1);box-shadow:0 0 8px rgba(63,217,255,.75);}
.rl-nav__cta{display:flex;align-items:center;gap:12px;}
.rl-burger{display:none;width:44px;height:44px;border-radius:12px;background:var(--glass);border:1px solid var(--glass-bd);color:var(--t1);align-items:center;justify-content:center;font-size:18px;cursor:pointer;transition:all var(--ease);}
.rl-burger:hover{border-color:rgba(63,217,255,.4);color:var(--brand);}

/* 按钮 */
.btn-rl-primary,.btn-rl-ghost,.btn-rl-soft{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;border:1px solid transparent;
  transition:all var(--ease);
}
.btn-rl-primary{background:linear-gradient(120deg,var(--brand),var(--brand-2));color:#04101d;box-shadow:0 0 22px rgba(63,217,255,.38);}
.btn-rl-primary:hover{color:#04101d;transform:translateY(-2px);box-shadow:0 0 30px rgba(63,217,255,.55);filter:brightness(1.06);}
.btn-rl-primary:active{transform:translateY(1px);}
.btn-rl-ghost{background:transparent;border-color:var(--glass-bd);color:var(--t1);}
.btn-rl-ghost:hover{border-color:rgba(63,217,255,.55);color:var(--brand);box-shadow:inset 0 0 20px rgba(63,217,255,.14);}
.btn-rl-soft{background:var(--glass);border-color:var(--glass-bd);color:var(--t1);}
.btn-rl-soft:hover{border-color:rgba(63,217,255,.4);color:var(--brand);}
.btn-block{width:100%;}

/* 徽章 */
.rl-badge{display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 11px;border-radius:999px;font-size:13px;line-height:1;background:rgba(63,217,255,.12);color:var(--brand);border:1px solid rgba(63,217,255,.22);}
.rl-badge--gold{background:rgba(255,203,107,.12);color:var(--accent);border-color:rgba(255,203,107,.28);}
.rl-badge--muted{background:rgba(255,255,255,.05);color:var(--t2);border-color:rgba(255,255,255,.1);}

/* Hero */
.rl-hero{position:relative;overflow:hidden;padding:76px 0 84px;background-image:url("/assets/images/backpic/back-1.png");background-size:cover;background-position:center;}
.rl-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(5,7,15,.94) 0%,rgba(5,7,15,.82) 48%,rgba(5,7,15,.9) 100%);}
.rl-hero::after{content:"";position:absolute;top:-140px;right:-120px;width:620px;height:620px;border-radius:50%;background:radial-gradient(circle at center,rgba(56,120,255,.18),rgba(140,92,255,.12) 45%,transparent 68%);pointer-events:none;}
.rl-hero__inner{position:relative;z-index:2;display:grid;grid-template-columns:6fr 6fr;gap:48px;align-items:center;}
.rl-hero__title{font-size:clamp(30px,4.2vw,46px);line-height:1.24;font-weight:800;letter-spacing:.5px;}
.rl-hero__title span{background:linear-gradient(100deg,var(--brand),var(--brand-2));-webkit-background-clip:text;background-clip:text;color:transparent;}
.rl-hero__sub{margin:20px 0 28px;color:var(--t2);font-size:16px;max-width:520px;}
.rl-hero__actions{display:flex;flex-wrap:wrap;gap:14px;}
.rl-hero__mini{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.rl-hero__mini span{display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--t2);background:var(--glass);border:1px solid var(--glass-bd);border-radius:999px;padding:6px 13px;}
.rl-hero__mini i{color:var(--brand);font-size:12px;}
.rl-hero__visual{position:relative;}
.rl-device{border-radius:var(--r-panel);background:var(--glass);border:1px solid var(--glass-bd);box-shadow:var(--sh-1);padding:14px;transition:transform var(--ease),box-shadow var(--ease);}
.rl-device:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.rl-device__frame{border-radius:var(--r-img);overflow:hidden;aspect-ratio:16/10;background:linear-gradient(135deg,rgba(63,217,255,.12),rgba(122,107,255,.12));}
.rl-device__frame img{width:100%;height:100%;object-fit:cover;}
.rl-device__float{position:absolute;right:-10px;bottom:-18px;background:rgba(17,24,52,.94);border:1px solid var(--glass-bd);border-radius:14px;padding:12px 16px;box-shadow:var(--sh-1);display:flex;align-items:center;gap:10px;font-size:13px;color:var(--t2);}
.rl-device__float strong{display:block;color:var(--t1);font-size:14px;}
.rl-dot{width:9px;height:9px;border-radius:50%;background:var(--ok);box-shadow:0 0 10px rgba(56,211,159,.8);}

/* 价值区 */
.rl-value{display:grid;grid-template-columns:6fr 6fr;gap:48px;align-items:center;margin-bottom:64px;}
.rl-value:last-of-type{margin-bottom:0;}
.rl-value--flip .rl-value__text{order:2;}
.rl-value__icon{width:44px;height:44px;border-radius:13px;border:1px solid var(--glass-bd);display:flex;align-items:center;justify-content:center;color:var(--brand);font-size:20px;margin-bottom:18px;background:rgba(63,217,255,.06);}
.rl-value h3{font-size:20px;line-height:1.4;margin-bottom:12px;}
.rl-value p{color:var(--t2);font-size:15px;margin-bottom:16px;}
.rl-value__media{border-radius:var(--r-panel);overflow:hidden;border:1px solid var(--glass-bd);box-shadow:var(--sh-1);aspect-ratio:16/10;background:linear-gradient(135deg,rgba(63,217,255,.1),rgba(122,107,255,.1));}
.rl-value__media img{width:100%;height:100%;object-fit:cover;}
.rl-stats{margin-top:72px;display:grid;grid-template-columns:repeat(3,1fr);gap:24px;border-top:1px solid rgba(255,255,255,.08);padding-top:34px;}
.rl-stat__num{font-size:30px;font-weight:800;color:var(--accent);font-variant-numeric:tabular-nums;line-height:1.2;}
.rl-stat__label{font-size:13px;color:var(--t3);margin-top:6px;}

/* 轮播 */
.rl-carousel{border-radius:var(--r-panel);overflow:hidden;border:1px solid var(--glass-bd);background:var(--glass);padding:14px;}
.rl-carousel .carousel-inner{border-radius:var(--r-img);overflow:hidden;}
.rl-slide{position:relative;aspect-ratio:16/9;background:linear-gradient(135deg,rgba(63,217,255,.12),rgba(122,107,255,.12));}
.rl-slide img{width:100%;height:100%;object-fit:cover;}
.rl-slide__cap{position:absolute;left:0;right:0;bottom:0;padding:22px 24px;background:linear-gradient(180deg,transparent,rgba(5,7,15,.9));}
.rl-slide__cap h3{font-size:18px;margin-bottom:4px;}
.rl-slide__cap p{margin:0;font-size:14px;color:var(--t2);}
.rl-slide__no{position:absolute;top:16px;right:16px;height:26px;padding:0 12px;border-radius:999px;background:rgba(5,7,15,.7);border:1px solid var(--glass-bd);color:var(--brand);font-size:12px;display:flex;align-items:center;font-variant-numeric:tabular-nums;}
.rl-carousel .carousel-indicators{position:static;margin:16px 0 4px;gap:8px;}
.rl-carousel .carousel-indicators [data-bs-target]{width:22px;height:5px;border-radius:999px;background:rgba(255,255,255,.16);border:0;opacity:1;margin:0;transition:all var(--ease);}
.rl-carousel .carousel-indicators .active{width:34px;background:var(--brand);box-shadow:0 0 12px rgba(63,217,255,.8);}
.rl-carousel .carousel-control-prev,.rl-carousel .carousel-control-next{width:40px;height:40px;top:42%;border-radius:50%;background:rgba(10,15,34,.7);border:1px solid var(--glass-bd);opacity:1;}
.rl-carousel .carousel-control-prev{left:22px;}
.rl-carousel .carousel-control-next{right:22px;}
.rl-carousel .carousel-control-prev:hover,.rl-carousel .carousel-control-next:hover{border-color:rgba(63,217,255,.5);background:rgba(10,15,34,.9);}

/* 系统要求 */
.rl-specs{border-radius:var(--r-panel);border:1px solid var(--glass-bd);background:var(--glass);overflow:hidden;}
.rl-spec-row{display:grid;grid-template-columns:260px 1fr;align-items:center;min-height:56px;padding:14px 24px;border-bottom:1px solid rgba(255,255,255,.08);}
.rl-spec-row:last-child{border-bottom:0;}
.rl-spec-row:hover{background:rgba(63,217,255,.04);}
.rl-spec-name{display:flex;align-items:center;gap:11px;font-size:15px;font-weight:600;color:var(--t1);}
.rl-spec-name i{color:var(--brand);font-size:16px;width:20px;text-align:center;}
.rl-spec-val{font-size:14px;color:var(--t2);}

/* 步骤流 */
.rl-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;position:relative;}
.rl-steps::before{content:"";position:absolute;top:16px;left:6%;right:6%;height:1px;background:linear-gradient(90deg,rgba(63,217,255,.6),rgba(122,107,255,.55),rgba(122,107,255,0));}
.rl-step{position:relative;padding-top:0;}
.rl-step__dot{width:32px;height:32px;border-radius:50%;background:rgba(10,15,34,.95);border:1px solid rgba(63,217,255,.5);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;box-shadow:0 0 16px rgba(63,217,255,.35);position:relative;z-index:2;font-variant-numeric:tabular-nums;}
.rl-step h3{font-size:17px;margin:18px 0 8px;}
.rl-step p{font-size:14px;color:var(--t2);margin:0 0 10px;}
.rl-step a{font-size:13px;display:inline-flex;align-items:center;gap:6px;}

/* 评价墙 */
.rl-reviews{columns:2;column-gap:24px;}
.rl-review{break-inside:avoid;margin-bottom:24px;background:var(--glass);border:1px solid var(--glass-bd);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-1);transition:transform var(--ease),border-color var(--ease);}
.rl-review:hover{transform:translateY(-3px);border-color:rgba(63,217,255,.32);}
.rl-review__top{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.rl-avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,rgba(63,217,255,.28),rgba(122,107,255,.28));border:1px solid var(--glass-bd);display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;color:var(--t1);}
.rl-review__name{font-size:15px;font-weight:600;}
.rl-review__meta{font-size:12px;color:var(--t3);}
.rl-stars{color:var(--accent);font-size:12px;letter-spacing:2px;margin-bottom:8px;}
.rl-review p{font-size:14px;color:var(--t2);margin:0 0 12px;}
.rl-review__src{font-size:12px;color:var(--t3);}

/* 下载面板 */
.rl-download{position:relative;border-radius:var(--r-panel);border:1px solid var(--glass-bd);background:rgba(17,24,52,.6);padding:48px 40px;box-shadow:var(--sh-1);overflow:hidden;text-align:center;}
.rl-download::before{content:"";position:absolute;left:-10%;right:-10%;top:50%;height:1px;background:linear-gradient(90deg,transparent,rgba(63,217,255,.28),rgba(122,107,255,.28),transparent);}
.rl-download h2{font-size:clamp(24px,2.6vw,32px);position:relative;}
.rl-download p{color:var(--t2);font-size:15px;margin:12px auto 30px;max-width:620px;position:relative;}
.rl-dl-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;position:relative;}
.rl-dl{display:flex;flex-direction:column;align-items:flex-start;gap:6px;padding:18px;border-radius:var(--r-card);background:var(--glass);border:1px solid var(--glass-bd);color:var(--t1);transition:all var(--ease);text-align:left;}
.rl-dl:hover{transform:translateY(-3px);border-color:rgba(63,217,255,.4);color:var(--t1);box-shadow:0 0 22px rgba(63,217,255,.16);}
.rl-dl i{font-size:20px;color:var(--brand);}
.rl-dl strong{font-size:16px;font-weight:600;}
.rl-dl small{font-size:13px;color:var(--t3);}
.rl-dl__note{margin-top:24px;font-size:13px;color:var(--t3);position:relative;}

/* 资讯卡 */
.rl-grid{display:grid;gap:24px;}
.rl-grid--3{grid-template-columns:repeat(3,1fr);}
.rl-card{display:flex;flex-direction:column;background:var(--glass);border:1px solid var(--glass-bd);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);color:inherit;}
.rl-card:hover{transform:translateY(-4px);border-color:rgba(63,217,255,.32);box-shadow:var(--sh-2);color:inherit;}
.rl-thumb{position:relative;aspect-ratio:16/9;background:linear-gradient(135deg,rgba(63,217,255,.14),rgba(122,107,255,.14));}
.rl-thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease);}
.rl-card:hover .rl-thumb img{transform:scale(1.03);}
.rl-card__body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.rl-card__title{font-size:17px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rl-card__desc{font-size:14px;color:var(--t2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;margin:0;}
.rl-card__foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--t3);border-top:1px solid rgba(255,255,255,.08);padding-top:12px;font-variant-numeric:tabular-nums;}
.rl-empty{border-radius:var(--r-panel);border:1px dashed var(--glass-bd);background:var(--glass);min-height:180px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;text-align:center;padding:32px;}
.rl-empty i{font-size:26px;color:var(--brand);}
.rl-empty p{color:var(--t2);font-size:15px;margin:0;}
.rl-empty__actions{display:flex;gap:12px;flex-wrap:wrap;justify-content:center;}

/* FAQ */
.accordion.rl-faq{--bs-accordion-bg:transparent;--bs-accordion-border-color:transparent;--bs-accordion-btn-focus-box-shadow:none;}
.rl-faq .accordion-item{background:transparent;border:1px solid transparent;border-radius:var(--r-card);margin-bottom:10px;overflow:hidden;transition:all var(--ease);}
.rl-faq .accordion-item:hover{border-color:rgba(120,190,255,.18);}
.rl-faq .accordion-button{position:relative;background:transparent;color:var(--t1);font-size:16px;font-weight:600;padding:18px 52px 18px 22px;border-radius:var(--r-card);box-shadow:none;}
.rl-faq .accordion-button::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;background:var(--brand);opacity:0;box-shadow:0 0 12px rgba(63,217,255,.8);transition:opacity var(--ease);}
.rl-faq .accordion-button:not(.collapsed){background:var(--glass);color:var(--brand);box-shadow:none;}
.rl-faq .accordion-button:not(.collapsed)::before{opacity:1;}
.rl-faq .accordion-button::after{display:none;}
.rl-faq .accordion-button .rl-faq__sign{margin-left:auto;position:absolute;right:20px;top:50%;transform:translateY(-50%);width:20px;height:20px;color:var(--brand);font-size:14px;display:flex;align-items:center;justify-content:center;transition:transform var(--ease);}
.rl-faq .accordion-button:not(.collapsed) .rl-faq__sign{transform:translateY(-50%) rotate(45deg);}
.rl-faq .accordion-body{padding:4px 22px 22px;color:var(--t2);font-size:15px;line-height:1.9;}

/* 页脚 */
.rl-footer{background:var(--bg-deep);border-top:1px solid rgba(120,190,255,.14);position:relative;padding-top:60px;}
.rl-footer::before{content:"";position:absolute;top:-1px;left:0;right:0;height:1px;background:linear-gradient(90deg,var(--brand),var(--brand-2),transparent);opacity:.7;}
.rl-footer__grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px;}
.rl-footer h4{font-size:15px;font-weight:600;margin-bottom:18px;color:var(--t1);}
.rl-footer p{font-size:14px;color:var(--t2);max-width:320px;}
.rl-footer li{margin-bottom:11px;}
.rl-footer li a{font-size:14px;color:var(--t2);display:inline-flex;align-items:center;gap:6px;transition:all var(--ease);}
.rl-footer li a:hover{color:var(--brand);transform:translateX(2px);}
.rl-footer__bottom{border-top:1px solid rgba(255,255,255,.08);padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13px;color:var(--t3);}
.rl-footer__brand{display:flex;align-items:center;gap:10px;color:var(--t1);font-size:17px;font-weight:700;margin-bottom:14px;}

/* 抽屉 */
.rl-drawer{background:rgba(10,15,34,.98);border-left:1px solid var(--glass-bd);color:var(--t1);width:320px;}
.rl-drawer .offcanvas-header{border-bottom:1px solid rgba(255,255,255,.08);padding:18px 20px;}
.rl-drawer .offcanvas-body{padding:10px 0;}
.rl-drawer__link{display:flex;align-items:center;height:48px;padding:0 20px;border-bottom:1px solid rgba(255,255,255,.06);color:var(--t2);font-size:15px;}
.rl-drawer__link:hover,.rl-drawer__link.active{color:var(--brand);background:rgba(63,217,255,.05);}
.rl-drawer__cta{padding:16px 20px;border-top:1px solid rgba(255,255,255,.08);}
.rl-drawer .btn-close{filter:invert(1) grayscale(1) brightness(1.6);}

@media (max-width:1199px){
  .rl-hero__inner{gap:34px;}
}
@media (max-width:991px){
  :root{--sec:64px;}
  .rl-menu,.rl-nav__cta .btn-rl-primary{display:none;}
  .rl-burger{display:inline-flex;}
  .rl-hero{padding:56px 0 64px;}
  .rl-hero__inner{grid-template-columns:1fr;gap:36px;}
  .rl-value{grid-template-columns:1fr;gap:26px;}
  .rl-value--flip .rl-value__text{order:0;}
  .rl-steps{grid-template-columns:1fr 1fr;}
  .rl-steps::before{display:none;}
  .rl-dl-grid{grid-template-columns:repeat(2,1fr);}
  .rl-grid--3{grid-template-columns:repeat(2,1fr);}
  .rl-reviews{columns:1;}
  .rl-footer__grid{grid-template-columns:1fr 1fr;gap:28px;}
  .rl-spec-row{grid-template-columns:210px 1fr;padding:14px 20px;}
}
@media (max-width:767px){
  :root{--sec:48px;}
  body{font-size:15px;}
  .rl-topbar__right{display:none;}
  .rl-topbar__brand{font-size:12px;}
  .rl-sec-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px;}
  .rl-hero__actions .btn-rl-primary,.rl-hero__actions .btn-rl-ghost{width:100%;}
  .rl-hero__mini{justify-content:flex-start;}
  .rl-stats{grid-template-columns:1fr;gap:18px;}
  .rl-steps{grid-template-columns:1fr;}
  .rl-dl-grid{grid-template-columns:1fr;}
  .rl-grid--3{grid-template-columns:1fr;}
  .rl-download{padding:32px 22px;}
  .rl-spec-row{grid-template-columns:1fr;gap:6px;}
  .rl-carousel .carousel-control-prev,.rl-carousel .carousel-control-next{display:none;}
  .rl-device__float{position:static;margin-top:14px;right:auto;bottom:auto;}
  .rl-footer__grid{grid-template-columns:1fr;}
}
@media (max-width:575px){
  .rl-container{padding:0 16px;}
  .rl-card__body{padding:16px;}
  .rl-brand{font-size:17px;}
  .rl-empty__actions .btn-rl-soft,.rl-empty__actions .btn-rl-ghost{width:100%;}
}

/* roulang page: article */
:root{
  --bg-deep:#05070F;
  --bg-base:#0A0F22;
  --bg-elev:#111834;
  --brand:#3FD9FF;
  --brand-2:#7A6BFF;
  --accent:#FFCB6B;
  --t1:#E9F1FF;
  --t2:#A7B6D6;
  --t3:#6F7EA0;
  --glass:rgba(255,255,255,.055);
  --glass-bd:rgba(120,190,255,.16);
  --ok:#38D39F;
  --warn:#FFB454;
  --err:#FF6B7A;
  --r-card:18px;
  --r-panel:24px;
  --r-btn:12px;
  --r-img:14px;
  --sh:0 18px 44px -22px rgba(0,0,0,.85);
  --sh-h:0 26px 56px -20px rgba(0,0,0,.9),0 0 0 1px rgba(63,217,255,.22);
  --glow:0 0 22px rgba(63,217,255,.38);
  --glow-h:0 0 30px rgba(63,217,255,.55);
  --ease:.24s cubic-bezier(.22,.61,.36,1);
  --wrap:1200px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--t1);
  background:var(--bg-base);
  background-image:
    radial-gradient(1100px 620px at 88% -8%,rgba(56,120,255,.16),transparent 62%),
    radial-gradient(900px 560px at 4% 6%,rgba(140,92,255,.13),transparent 60%);
  background-attachment:fixed;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--brand)}
h1,h2,h3,h4,h5{margin:0;color:var(--t1);letter-spacing:.4px}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
::selection{background:rgba(63,217,255,.28);color:#fff}
.rl-container{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 20px}
.rl-section{padding:88px 0}
.rl-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--brand);letter-spacing:1.4px;text-transform:uppercase;margin-bottom:14px}
.rl-eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,var(--brand),transparent)}
.rl-h2{font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.3}
.rl-sub{color:var(--t2);font-size:15px;margin-top:12px;max-width:640px}
.rl-divider{height:1px;background:linear-gradient(90deg,var(--brand),var(--brand-2),transparent);border:0;opacity:.55;margin:0}

/* ---------- 顶部信息条 ---------- */
.rl-topbar{height:36px;background:var(--bg-deep);border-bottom:1px solid rgba(80,140,220,.18);font-size:13px;position:relative;z-index:1035}
.rl-topbar__inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:16px}
.rl-topbar__left{display:flex;align-items:center;gap:10px;color:var(--t2);min-width:0}
.rl-topbar__brand{color:var(--t1);font-weight:600;white-space:nowrap}
.rl-topbar__divider{width:1px;height:12px;background:rgba(120,190,255,.3)}
.rl-topbar__tip{color:var(--t3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rl-topbar__right{display:flex;align-items:center;gap:18px}
.rl-topbar__right a{color:var(--t2);font-size:13px}
.rl-topbar__right a:hover{color:var(--brand)}

/* ---------- 主导航 ---------- */
.rl-nav{position:sticky;top:0;z-index:1030;background:rgba(10,15,34,.72);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);transition:background var(--ease),border-color var(--ease)}
.rl-nav.is-scrolled{background:rgba(10,15,34,.92);border-bottom:1px solid rgba(120,190,255,.14)}
.rl-nav__inner{height:68px;display:flex;align-items:center;gap:24px}
.rl-brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.rl-brand__icon{width:26px;height:26px;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;background:rgba(63,217,255,.09);box-shadow:0 0 16px rgba(63,217,255,.18)}
.rl-brand__icon svg{width:22px;height:22px}
.rl-brand__text{font-size:19px;font-weight:700;color:var(--t1);letter-spacing:.4px;white-space:nowrap}
.rl-brand:hover .rl-brand__text{color:var(--brand)}
.rl-menu{display:flex;align-items:center;gap:26px;margin-left:auto}
.rl-menu a{position:relative;font-size:15px;color:var(--t2);padding:6px 0;white-space:nowrap}
.rl-menu a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--brand);border-radius:2px;transform:scaleX(0);transform-origin:left;transition:transform var(--ease);box-shadow:0 0 8px var(--brand)}
.rl-menu a:hover{color:var(--t1)}
.rl-menu a:hover::after{transform:scaleX(1)}
.rl-menu a.active{color:var(--brand)}
.rl-menu a.active::after{transform:scaleX(1)}
.rl-nav__cta{display:flex;align-items:center;gap:12px;margin-left:6px}
.btn-rl-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border:0;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;color:#04121C;
  background:linear-gradient(120deg,var(--brand),var(--brand-2));
  box-shadow:var(--glow);transition:transform var(--ease),box-shadow var(--ease),filter var(--ease);
  white-space:nowrap;cursor:pointer;
}
.btn-rl-primary:hover{color:#04121C;filter:brightness(1.08);transform:translateY(-2px);box-shadow:var(--glow-h)}
.btn-rl-primary:active{transform:translateY(1px)}
.btn-rl-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  background:transparent;border:1px solid var(--glass-bd);color:var(--t1);
  font-size:15px;font-weight:600;transition:all var(--ease);white-space:nowrap;cursor:pointer;
}
.btn-rl-ghost:hover{border-color:var(--brand);color:var(--brand);box-shadow:inset 0 0 18px rgba(63,217,255,.14);transform:translateY(-2px)}
.rl-link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--brand)}
.rl-link-arrow i{transition:transform var(--ease);font-size:12px}
.rl-link-arrow:hover i{transform:translateX(3px)}
.rl-burger{display:none;width:44px;height:44px;border-radius:12px;background:var(--glass);border:1px solid var(--glass-bd);color:var(--t1);font-size:17px}

/* ---------- 抽屉导航 ---------- */
.rl-drawer{background:linear-gradient(180deg,rgba(10,15,34,.98),rgba(5,7,15,.98))!important;border-left:1px solid var(--glass-bd)!important;color:var(--t1)}
.rl-drawer .offcanvas-header{border-bottom:1px solid rgba(120,190,255,.14);padding:18px 20px}
.rl-drawer .offcanvas-body{padding:8px 20px 24px;display:flex;flex-direction:column}
.rl-drawer a.rl-drawer__item{display:flex;align-items:center;height:48px;border-bottom:1px solid rgba(255,255,255,.07);color:var(--t2);font-size:15px}
.rl-drawer a.rl-drawer__item.active{color:var(--brand)}
.rl-drawer__foot{margin-top:auto;padding-top:20px}

/* ---------- 文章头 ---------- */
.rl-article-hero{position:relative;padding:44px 0 0}
.rl-article-hero__bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;opacity:.3}
.rl-article-hero__bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,7,15,.78),rgba(10,15,34,.94))}
.rl-article-hero__inner{position:relative;z-index:2}
.rl-crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--t2);margin-bottom:18px}
.rl-crumb a{color:var(--t2)}
.rl-crumb a:hover{color:var(--brand)}
.rl-crumb span.sep{color:var(--t3)}
.rl-crumb .current{color:var(--t1)}
.rl-hero-panel{
  background:var(--glass);border:1px solid var(--glass-bd);border-radius:var(--r-panel);
  padding:30px 32px;box-shadow:var(--sh);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  min-height:200px;
}
.rl-badge{display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;font-size:13px;font-weight:600;line-height:1;letter-spacing:.3px}
.rl-badge--cat{background:rgba(63,217,255,.12);color:var(--brand)}
.rl-badge--gold{background:rgba(255,203,107,.14);color:var(--accent)}
.rl-badge--muted{background:rgba(255,255,255,.06);color:var(--t2);border:1px solid var(--glass-bd)}
.rl-article-hero h1{font-size:clamp(26px,3.4vw,38px);font-weight:800;line-height:1.28;margin:16px 0 18px;letter-spacing:.5px}
.rl-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--t3)}
.rl-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--t3);display:inline-block}
.rl-meta a{color:var(--t3)}
.rl-meta a:hover{color:var(--brand)}

/* ---------- 正文布局 ---------- */
.rl-article-main{padding:56px 0 88px}
.rl-article-layout{display:grid;grid-template-columns:minmax(0,820px) 220px;gap:48px;justify-content:center;align-items:start}
.rl-article__body{font-size:16px;line-height:1.9;color:#D8E2F6}
.rl-article__body > *:first-child{margin-top:0}
.rl-article__body p{margin:0 0 1.4em}
.rl-article__body h2{
  position:relative;font-size:24px;font-weight:700;line-height:1.4;color:var(--t1);
  margin:44px 0 18px;padding-left:16px;scroll-margin-top:96px;
}
.rl-article__body h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:3px;background:var(--brand);box-shadow:0 0 12px rgba(63,217,255,.6)}
.rl-article__body h3{font-size:19px;font-weight:600;margin:32px 0 14px;color:var(--t1);scroll-margin-top:96px}
.rl-article__body h4{font-size:17px;font-weight:600;margin:26px 0 12px;color:var(--t1)}
.rl-article__body a{border-bottom:1px solid rgba(63,217,255,.4)}
.rl-article__body a:hover{border-bottom-color:var(--brand)}
.rl-article__body strong{color:#fff;font-weight:600}
.rl-article__body blockquote{
  margin:24px 0;padding:18px 22px;border-radius:var(--r-img);
  background:var(--glass);border-left:4px solid var(--brand-2);
  font-size:15px;line-height:1.85;color:var(--t2);
}
.rl-article__body blockquote p:last-child{margin-bottom:0}
.rl-article__body ul,.rl-article__body ol{margin:0 0 1.4em;padding-left:4px}
.rl-article__body ul li,.rl-article__body ol li{position:relative;padding-left:22px;margin-bottom:10px;line-height:1.9}
.rl-article__body ul li::before{content:"";position:absolute;left:4px;top:13px;width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 8px rgba(63,217,255,.7)}
.rl-article__body ol{counter-reset:rlol}
.rl-article__body ol li{counter-increment:rlol}
.rl-article__body ol li::before{content:counter(rlol);position:absolute;left:0;top:1px;width:20px;font-size:13px;font-weight:700;color:var(--brand);line-height:1.7}
.rl-article__body img{border-radius:var(--r-img);margin:24px 0;width:100%;height:auto}
.rl-article__body figure{margin:24px 0}
.rl-article__body figcaption{font-size:13px;color:var(--t3);text-align:center;margin-top:10px}
.rl-article__body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;border-radius:var(--r-img);overflow:hidden}
.rl-article__body thead th{background:var(--glass);color:var(--t1);font-weight:600;text-align:left}
.rl-article__body th,.rl-article__body td{padding:12px 16px;border:1px solid rgba(255,255,255,.08)}
.rl-article__body tbody tr:nth-child(even){background:rgba(255,255,255,.03)}
.rl-article__body pre{background:#070B18;border:1px solid var(--glass-bd);border-radius:12px;padding:16px 18px;overflow-x:auto;font-size:14px;line-height:1.7;color:#BFD4F2}
.rl-article__body code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:14px}
.rl-article__body hr{border:0;height:1px;background:rgba(255,255,255,.09);margin:36px 0}

/* ---------- 目录 ---------- */
.rl-toc{position:sticky;top:96px;background:var(--glass);border:1px solid var(--glass-bd);border-radius:var(--r-card);padding:18px 18px 20px;box-shadow:var(--sh)}
.rl-toc h3{font-size:14px;font-weight:600;color:var(--t1);letter-spacing:1px;margin-bottom:12px}
.rl-toc ul{display:flex;flex-direction:column;gap:2px;max-height:60vh;overflow:auto}
.rl-toc a{display:block;font-size:13.5px;line-height:1.6;color:var(--t2);padding:6px 8px;border-radius:8px;border-left:2px solid transparent;transition:all var(--ease)}
.rl-toc a:hover{color:var(--t1);background:rgba(255,255,255,.05)}
.rl-toc a.is-active{color:var(--brand);border-left-color:var(--brand);background:rgba(63,217,255,.08)}
.rl-toc a.lvl-3{padding-left:20px;font-size:13px;color:var(--t3)}

/* ---------- 标签 & 文末 ---------- */
.rl-tags{display:flex;flex-wrap:wrap;gap:10px;margin:44px 0 0;padding-top:26px;border-top:1px solid rgba(255,255,255,.08)}
.rl-tags__label{font-size:13px;color:var(--t3);align-self:center;margin-right:4px}
.rl-tag{display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:999px;font-size:13px;color:var(--t2);background:rgba(255,255,255,.05);border:1px solid var(--glass-bd);transition:all var(--ease)}
.rl-tag:hover{color:var(--brand);border-color:rgba(63,217,255,.4);background:rgba(63,217,255,.08)}
.rl-backcat{margin-top:34px;display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 相关推荐 ---------- */
.rl-related{padding:0 0 88px}
.rl-related__head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}
.rl-grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rl-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--glass);border:1px solid var(--glass-bd);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.rl-card:hover{transform:translateY(-4px);border-color:rgba(63,217,255,.32);box-shadow:var(--sh-h)}
.rl-card__media{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,rgba(63,217,255,.12),rgba(122,107,255,.1))}
.rl-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.rl-card:hover .rl-card__media img{transform:scale(1.03)}
.rl-card__body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.rl-card__body h3{font-size:17px;font-weight:600;line-height:1.5}
.rl-card__body p{font-size:14px;line-height:1.7;color:var(--t2);margin:0}
.rl-card__foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--t3);padding-top:6px}
.rl-card:hover .rl-card__body h3{color:var(--brand)}

/* ---------- CTA ---------- */
.rl-cta{position:relative;overflow:hidden;border-radius:var(--r-panel);border:1px solid var(--glass-bd);
  background:radial-gradient(700px 320px at 22% 10%,rgba(56,120,255,.18),transparent 65%),radial-gradient(600px 300px at 86% 90%,rgba(140,92,255,.14),transparent 62%),var(--bg-elev);
  padding:52px 44px;text-align:center;box-shadow:var(--sh)}
.rl-cta::before{content:"";position:absolute;left:-10%;right:-10%;top:50%;height:1px;background:linear-gradient(90deg,transparent,rgba(63,217,255,.45),transparent);opacity:.5}
.rl-cta h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;position:relative}
.rl-cta p{position:relative;color:var(--t2);font-size:15px;margin:14px auto 26px;max-width:620px}
.rl-cta__btns{position:relative;display:flex;flex-wrap:wrap;gap:14px;justify-content:center}

/* ---------- 空态 ---------- */
.rl-empty{background:var(--glass);border:1px solid var(--glass-bd);border-radius:var(--r-panel);padding:56px 32px;text-align:center}
.rl-empty i{font-size:30px;color:var(--brand);opacity:.85}
.rl-empty h3{font-size:20px;font-weight:600;margin:16px 0 10px}
.rl-empty p{color:var(--t2);font-size:15px;max-width:460px;margin:0 auto 22px}

/* ---------- 页脚 ---------- */
.rl-footer{margin-top:20px;padding:64px 0 0;background:var(--bg-deep);border-top:1px solid rgba(255,255,255,.06)}
.rl-footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.rl-footer__brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--t1);margin-bottom:14px}
.rl-footer p{color:var(--t2);font-size:14px;line-height:1.8;max-width:340px}
.rl-footer h4{font-size:15px;font-weight:600;color:var(--t1);margin-bottom:16px}
.rl-footer ul{display:flex;flex-direction:column;gap:10px}
.rl-footer ul a{font-size:14px;color:var(--t2);display:inline-block;transition:all var(--ease)}
.rl-footer ul a:hover{color:var(--brand);transform:translateX(2px)}
.rl-footer__bottom{margin-top:48px;padding:20px 0;border-top:1px solid rgba(255,255,255,.06);display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:var(--t3)}
.rl-footer__rule{height:1px;background:linear-gradient(90deg,var(--brand),var(--brand-2),transparent);opacity:.6}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .rl-article-layout{grid-template-columns:minmax(0,820px);gap:0}
  .rl-toc{display:none}
}
@media (max-width:991.98px){
  .rl-section{padding:64px 0}
  .rl-menu,.rl-nav__cta .btn-rl-primary{display:none}
  .rl-burger{display:inline-flex;align-items:center;justify-content:center}
  .rl-nav__cta{margin-left:auto}
  .rl-grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .rl-footer__grid{grid-template-columns:1fr 1fr;gap:28px}
  .rl-hero-panel{padding:24px 22px}
  .rl-article-main{padding:40px 0 64px}
  .rl-related{padding-bottom:64px}
}
@media (max-width:767.98px){
  body{font-size:15px}
  .rl-topbar__tip,.rl-topbar__right a:not(:last-child){display:none}
  .rl-topbar__divider{display:none}
  .rl-brand__text{font-size:16px}
  .rl-nav__inner{height:62px}
  .rl-article-hero{padding:24px 0 0}
  .rl-hero-panel{padding:20px 16px;border-radius:18px}
  .rl-article-hero h1{font-size:clamp(22px,6vw,28px)}
  .rl-article__body h2{font-size:21px;margin-top:36px}
  .rl-article__body h3{font-size:18px}
  .rl-grid-3{grid-template-columns:1fr;gap:18px}
  .rl-cta{padding:36px 20px;border-radius:18px}
  .rl-cta__btns{flex-direction:column;align-items:stretch}
  .rl-cta__btns .btn-rl-primary,.rl-cta__btns .btn-rl-ghost{width:100%}
  .rl-backcat{flex-direction:column;align-items:stretch}
  .rl-backcat .btn-rl-ghost{width:100%}
  .rl-related__head{flex-direction:column;align-items:flex-start;gap:10px}
}
@media (max-width:575.98px){
  .rl-container{padding:0 16px}
  .rl-footer__grid{grid-template-columns:1fr}
  .rl-card__body{padding:16px}
  .rl-footer__bottom{flex-direction:column}
}

/* roulang page: category1 */
:root{
  --bg-deep:#05070F;
  --bg-base:#0A0F22;
  --bg-elev:#111834;
  --brand:#3FD9FF;
  --brand-2:#7A6BFF;
  --accent:#FFCB6B;
  --t1:#E9F1FF;
  --t2:#A7B6D6;
  --t3:#6F7EA0;
  --glass:rgba(255,255,255,.055);
  --glass-bd:rgba(120,190,255,.16);
  --ok:#38D39F;
  --warn:#FFB454;
  --err:#FF6B7A;
  --r-card:18px;
  --r-panel:24px;
  --r-btn:12px;
  --shadow:0 18px 44px -22px rgba(0,0,0,.85);
  --shadow-hover:0 26px 56px -20px rgba(0,0,0,.9);
  --ease:.24s cubic-bezier(.22,.61,.36,1);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--t1);
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color var(--ease);}
a:hover{color:#8BE8FF;}
button{font-family:inherit;}
h1,h2,h3,h4{color:var(--t1);margin:0;letter-spacing:.4px;}
p{margin:0 0 14px;color:var(--t2);}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

.rl-container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
}

/* ============ 顶部信息条 ============ */
.rl-topbar{
  height:36px;
  background:var(--bg-deep);
  border-bottom:1px solid rgba(80,140,220,.18);
  font-size:13px;
  display:flex;
  align-items:center;
}
.rl-topbar__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  height:36px;
}
.rl-topbar__left{display:flex;align-items:center;gap:10px;min-width:0;}
.rl-topbar__brand{color:var(--t1);font-weight:600;white-space:nowrap;}
.rl-topbar__divider{width:1px;height:12px;background:rgba(120,190,255,.28);}
.rl-topbar__tip{color:var(--t3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.rl-topbar__right{display:flex;align-items:center;gap:20px;}
.rl-topbar__right a{color:var(--t2);font-size:13px;white-space:nowrap;}
.rl-topbar__right a:hover{color:var(--brand);}

/* ============ 主导航 ============ */
.rl-nav{
  position:sticky;
  top:0;
  z-index:1030;
  height:68px;
  background:rgba(10,15,34,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background var(--ease),border-color var(--ease);
}
.rl-nav.is-scrolled{
  background:rgba(10,15,34,.94);
  border-bottom-color:rgba(120,190,255,.14);
}
.rl-nav__inner{
  height:68px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}
.rl-brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.rl-brand__icon{
  width:34px;height:34px;flex-shrink:0;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;
  background:linear-gradient(135deg,rgba(63,217,255,.16),rgba(122,107,255,.14));
  border:1px solid var(--glass-bd);
}
.rl-brand__icon svg{width:22px;height:22px;}
.rl-brand__text{
  font-size:19px;font-weight:700;color:var(--t1);
  white-space:nowrap;letter-spacing:.5px;
}
.rl-menu{display:flex;align-items:center;gap:26px;}
.rl-menu a{
  position:relative;
  font-size:15px;
  color:var(--t2);
  padding:6px 0;
  white-space:nowrap;
}
.rl-menu a::after{
  content:"";
  position:absolute;left:0;right:0;bottom:0;
  height:2px;border-radius:2px;
  background:var(--brand);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform var(--ease);
  box-shadow:0 0 8px rgba(63,217,255,.85);
}
.rl-menu a:hover{color:var(--t1);}
.rl-menu a:hover::after{transform:scaleX(1);}
.rl-menu a.active{color:var(--brand);}
.rl-menu a.active::after{transform:scaleX(1);}
.rl-nav__cta{display:flex;align-items:center;gap:12px;}

.btn-rl-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;
  border:0;border-radius:var(--r-btn);
  background:linear-gradient(120deg,var(--brand),var(--brand-2));
  color:#06101F;font-size:15px;font-weight:700;
  box-shadow:0 0 22px rgba(63,217,255,.38);
  transition:transform var(--ease),box-shadow var(--ease),filter var(--ease);
  cursor:pointer;
  white-space:nowrap;
}
.btn-rl-primary:hover{
  color:#06101F;
  filter:brightness(1.08);
  transform:translateY(-2px);
  box-shadow:0 0 30px rgba(63,217,255,.55);
}
.btn-rl-primary:active{transform:translateY(1px);}
.btn-rl-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;
  border:1px solid var(--glass-bd);border-radius:var(--r-btn);
  background:transparent;color:var(--t1);
  font-size:15px;font-weight:600;
  transition:color var(--ease),border-color var(--ease),box-shadow var(--ease),transform var(--ease);
}
.btn-rl-ghost:hover{
  color:var(--brand);
  border-color:rgba(63,217,255,.5);
  box-shadow:inset 0 0 22px rgba(63,217,255,.14);
  transform:translateY(-2px);
}
.rl-link-arrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--brand);
}
.rl-link-arrow i{transition:transform var(--ease);font-size:12px;}
.rl-link-arrow:hover i{transform:translateX(3px);}

.rl-burger{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--glass-bd);border-radius:12px;
  background:var(--glass);color:var(--t1);font-size:17px;
  align-items:center;justify-content:center;
}

/* ============ 抽屉 ============ */
.rl-drawer{
  background:rgba(10,15,34,.97)!important;
  border-left:1px solid var(--glass-bd)!important;
  width:300px!important;
  color:var(--t1);
}
.rl-drawer .offcanvas-header{border-bottom:1px solid rgba(255,255,255,.08);}
.rl-drawer__title{font-size:16px;font-weight:700;color:var(--t1);}
.rl-drawer__btn{
  background:transparent;border:0;color:var(--t2);font-size:20px;
}
.rl-drawer__list{margin:8px 0 0;}
.rl-drawer__list a{
  display:flex;align-items:center;justify-content:space-between;
  height:48px;padding:0 4px;
  font-size:15px;color:var(--t2);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.rl-drawer__list a.active{color:var(--brand);}
.rl-drawer__list a i{font-size:12px;color:var(--t3);}
.rl-drawer__foot{
  position:absolute;left:0;right:0;bottom:0;padding:16px 20px 22px;
  border-top:1px solid rgba(255,255,255,.08);
  background:rgba(5,7,15,.7);
}
.rl-drawer__foot .btn-rl-primary{width:100%;}

/* ============ Hero ============ */
.rl-hero{
  position:relative;
  overflow:hidden;
  padding:56px 0 52px;
  border-bottom:1px solid rgba(120,190,255,.12);
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
}
.rl-hero::before{
  content:"";
  position:absolute;inset:0;
  background:
    radial-gradient(760px 340px at 18% 12%,rgba(56,120,255,.18),transparent 66%),
    radial-gradient(620px 320px at 88% 82%,rgba(140,92,255,.14),transparent 70%),
    linear-gradient(180deg,rgba(5,7,15,.74),rgba(10,15,34,.92) 62%,var(--bg-base));
}
.rl-hero::after{
  content:"";
  position:absolute;right:-140px;top:-160px;
  width:520px;height:520px;border-radius:50%;
  border:1px solid rgba(63,217,255,.28);
  opacity:.35;pointer-events:none;
}
.rl-hero__inner{position:relative;z-index:2;max-width:840px;}
.rl-crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:14px;color:var(--t2);margin-bottom:18px;
}
.rl-crumb a{color:var(--t2);}
.rl-crumb a:hover{color:var(--brand);}
.rl-crumb span.sep{color:var(--t3);}
.rl-crumb .now{color:var(--t1);}
.rl-hero h1{
  font-size:clamp(28px,4vw,44px);
  line-height:1.26;
  font-weight:800;
  letter-spacing:.5px;
}
.rl-hero__lead{
  margin-top:16px;
  font-size:17px;color:var(--t2);
  max-width:680px;
}
.rl-hero__badges{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;
}
.rl-chip{
  display:inline-flex;align-items:center;gap:7px;
  height:30px;padding:0 14px;border-radius:999px;
  font-size:13px;font-weight:600;
  background:rgba(63,217,255,.12);
  color:var(--brand);
  border:1px solid rgba(63,217,255,.24);
}
.rl-chip--gold{
  background:rgba(255,203,107,.12);
  color:var(--accent);
  border-color:rgba(255,203,107,.28);
}
.rl-chip--plain{
  background:var(--glass);
  color:var(--t2);
  border-color:var(--glass-bd);
}

/* ============ 主体布局 ============ */
.rl-main{padding:64px 0 8px;}
.rl-layout{
  display:grid;
  grid-template-columns:200px minmax(0,1fr);
  gap:44px;
  align-items:start;
}
.rl-toc{
  position:sticky;
  top:96px;
  display:none;
}
.rl-toc__title{
  font-size:13px;letter-spacing:1.4px;color:var(--t3);
  text-transform:uppercase;margin-bottom:14px;
}
.rl-toc__list a{
  display:block;
  padding:9px 0 9px 14px;
  font-size:14px;color:var(--t2);
  border-left:2px solid rgba(120,190,255,.14);
  transition:color var(--ease),border-color var(--ease),padding-left var(--ease);
}
.rl-toc__list a:hover{color:var(--t1);border-left-color:rgba(63,217,255,.55);}
.rl-toc__list a.active{color:var(--brand);border-left-color:var(--brand);padding-left:16px;}

.rl-section{padding-bottom:56px;scroll-margin-top:100px;}
.rl-section__head{margin-bottom:22px;}
.rl-section h2{
  font-size:clamp(22px,2.4vw,30px);
  font-weight:700;line-height:1.34;
  padding-left:16px;
  position:relative;
}
.rl-section h2::before{
  content:"";
  position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:3px;
  background:linear-gradient(180deg,var(--brand),var(--brand-2));
  box-shadow:0 0 14px rgba(63,217,255,.55);
}
.rl-section__sub{
  margin-top:10px;padding-left:16px;
  font-size:14px;color:var(--t3);
}
.rl-section h3{
  font-size:19px;font-weight:600;
  margin:26px 0 10px;
}
.rl-p{font-size:15.5px;line-height:1.9;color:var(--t2);}

/* 步骤卡 */
.rl-steps{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;
  margin-top:8px;
}
.rl-step{
  position:relative;
  padding:24px 22px 22px 24px;
  background:var(--glass);
  border:1px solid var(--glass-bd);
  border-radius:var(--r-card);
  box-shadow:var(--shadow);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.rl-step:hover{
  transform:translateY(-4px);
  border-color:rgba(63,217,255,.32);
  box-shadow:var(--shadow-hover);
}
.rl-step__no{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:50%;
  font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;
  color:#06101F;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  box-shadow:0 0 16px rgba(63,217,255,.42);
  margin-bottom:14px;
}
.rl-step h3{
  font-size:17px;font-weight:600;margin:0 0 8px;
}
.rl-step p{font-size:14.5px;line-height:1.8;margin:0;color:var(--t2);}

/* 提示框 */
.rl-note{
  display:flex;gap:14px;
  padding:18px 20px;
  border-radius:14px;
  background:var(--glass);
  border:1px solid var(--glass-bd);
  border-left:4px solid var(--brand);
  margin:20px 0;
}
.rl-note i{font-size:17px;color:var(--brand);margin-top:3px;}
.rl-note strong{display:block;font-size:15px;color:var(--t1);margin-bottom:4px;}
.rl-note p{margin:0;font-size:14.5px;color:var(--t2);}
.rl-note--warn{border-left-color:var(--warn);}
.rl-note--warn i{color:var(--warn);}
.rl-note--ok{border-left-color:var(--ok);}
.rl-note--ok i{color:var(--ok);}

/* 图文块 */
.rl-figure{
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);
  gap:28px;
  align-items:center;
  margin-top:26px;
}
.rl-figure__media{
  position:relative;
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--glass-bd);
  box-shadow:var(--shadow);
  aspect-ratio:16/10;
  background:linear-gradient(135deg,rgba(63,217,255,.08),rgba(122,107,255,.08));
}
.rl-figure__media img{width:100%;height:100%;object-fit:cover;}
.rl-list-dot li{
  position:relative;
  padding-left:20px;
  margin-bottom:10px;
  font-size:15px;color:var(--t2);line-height:1.8;
}
.rl-list-dot li::before{
  content:"";
  position:absolute;left:0;top:11px;
  width:7px;height:7px;border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 9px rgba(63,217,255,.7);
}

/* 三列卡片 */
.rl-grid-3{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
}
.rl-card{
  padding:24px 22px;
  background:var(--glass);
  border:1px solid var(--glass-bd);
  border-radius:var(--r-card);
  box-shadow:var(--shadow);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.rl-card:hover{
  transform:translateY(-4px);
  border-color:rgba(63,217,255,.32);
  box-shadow:var(--shadow-hover);
}
.rl-card__icon{
  width:42px;height:42px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(63,217,255,.28);
  background:rgba(63,217,255,.08);
  color:var(--brand);font-size:17px;
  margin-bottom:14px;
}
.rl-card h3{font-size:17px;font-weight:600;margin:0 0 8px;}
.rl-card p{font-size:14.5px;line-height:1.8;margin:0;color:var(--t2);}

/* 定义列表 */
.rl-deflist{
  border:1px solid var(--glass-bd);
  border-radius:var(--r-card);
  overflow:hidden;
  background:rgba(255,255,255,.03);
}
.rl-deflist__row{
  display:grid;
  grid-template-columns:240px minmax(0,1fr);
  gap:20px;
  padding:18px 22px;
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:background var(--ease);
}
.rl-deflist__row:last-child{border-bottom:0;}
.rl-deflist__row:hover{background:rgba(63,217,255,.04);}
.rl-deflist__key{
  display:flex;align-items:flex-start;gap:10px;
  font-size:15px;font-weight:600;color:var(--t1);
}
.rl-deflist__key i{color:var(--brand);margin-top:5px;font-size:14px;}
.rl-deflist__val{font-size:14.5px;color:var(--t2);line-height:1.8;}

/* 折叠问答 */
.rl-acc .accordion-item{
  background:transparent;
  border:1px solid transparent;
  border-bottom:1px solid rgba(255,255,255,.08);
  border-radius:0;
}
.rl-acc .accordion-item:first-child{border-top:1px solid rgba(255,255,255,.08);}
.rl-acc .accordion-button{
  background:transparent;
  color:var(--t1);
  font-size:16px;font-weight:600;
  padding:18px 44px 18px 18px;
  border-radius:0!important;
  box-shadow:none!important;
  position:relative;
}
.rl-acc .accordion-button::after{display:none;}
.rl-acc .accordion-button::before{
  content:"+";
  position:absolute;right:18px;top:50%;
  transform:translateY(-50%);
  font-size:18px;color:var(--brand);
  transition:transform var(--ease);
  line-height:1;
}
.rl-acc .accordion-button:not(.collapsed)::before{
  content:"−";
  transform:translateY(-50%) rotate(180deg);
}
.rl-acc .accordion-button:not(.collapsed){
  color:var(--brand);
  background:var(--glass);
  box-shadow:inset 3px 0 0 var(--brand)!important;
}
.rl-acc .accordion-button:hover{color:var(--brand);}
.rl-acc .accordion-body{
  padding:4px 22px 22px 21px;
  font-size:15px;line-height:1.9;color:var(--t2);
  background:rgba(255,255,255,.03);
}

/* 相关入口卡 */
.rl-entry{
  display:flex;flex-direction:column;gap:10px;
  padding:22px;
  background:var(--glass);
  border:1px solid var(--glass-bd);
  border-radius:var(--r-card);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.rl-entry:hover{
  transform:translateY(-4px);
  border-color:rgba(63,217,255,.32);
  box-shadow:var(--shadow-hover);
}
.rl-entry h3{font-size:17px;font-weight:600;margin:0;}
.rl-entry h3 a{color:var(--t1);}
.rl-entry h3 a:hover{color:var(--brand);}
.rl-entry p{font-size:14px;color:var(--t2);margin:0;}

/* CTA 通栏 */
.rl-cta{
  position:relative;
  overflow:hidden;
  margin:20px 0 72px;
  padding:44px 36px;
  border-radius:var(--r-panel);
  border:1px solid rgba(63,217,255,.24);
  background:
    radial-gradient(520px 240px at 22% 18%,rgba(56,120,255,.18),transparent 68%),
    radial-gradient(480px 220px at 82% 78%,rgba(140,92,255,.14),transparent 70%),
    var(--bg-elev);
  box-shadow:0 0 0 1px rgba(63,217,255,.08),var(--shadow);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:26px;
}
.rl-cta::after{
  content:"";
  position:absolute;left:0;right:0;top:50%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(63,217,255,.22),transparent);
  pointer-events:none;
}
.rl-cta__text{position:relative;z-index:2;max-width:620px;}
.rl-cta h2{font-size:clamp(21px,2.3vw,28px);font-weight:700;}
.rl-cta p{margin-top:10px;font-size:15px;}
.rl-cta__actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:12px;}

/* ============ 页脚 ============ */
.rl-footer{
  position:relative;
  background:var(--bg-deep);
  border-top:1px solid rgba(80,140,220,.18);
  padding:56px 0 0;
}
.rl-footer::before{
  content:"";
  position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2),transparent);
  opacity:.55;
}
.rl-footer__grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:36px;
  padding-bottom:40px;
}
.rl-footer__brand{
  display:flex;align-items:center;gap:10px;
  font-size:17px;font-weight:700;color:var(--t1);
  margin-bottom:14px;
}
.rl-footer p{font-size:14px;color:var(--t3);line-height:1.8;margin:0;}
.rl-footer h4{
  font-size:15px;font-weight:600;color:var(--t1);
  margin-bottom:16px;
}
.rl-footer ul li{margin-bottom:10px;}
.rl-footer ul a{
  font-size:14px;color:var(--t2);
  display:inline-block;
  transition:color var(--ease),transform var(--ease);
}
.rl-footer ul a:hover{color:var(--brand);transform:translateX(2px);}
.rl-footer__bottom{
  display:flex;flex-wrap:wrap;gap:10px 24px;
  justify-content:space-between;
  padding:20px 0 26px;
  border-top:1px solid rgba(255,255,255,.08);
  font-size:13px;color:var(--t3);
}

/* ============ 响应式 ============ */
@media (min-width:1200px){
  .rl-toc{display:block;}
}
@media (max-width:1199.98px){
  .rl-layout{grid-template-columns:minmax(0,1fr);gap:0;}
}
@media (max-width:991.98px){
  .rl-menu{display:none;}
  .rl-burger{display:inline-flex;}
  .rl-topbar__right{display:none;}
  .rl-nav__cta .btn-rl-primary{display:none;}
  .rl-steps{grid-template-columns:minmax(0,1fr);}
  .rl-grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .rl-figure{grid-template-columns:minmax(0,1fr);}
  .rl-footer__grid{grid-template-columns:1fr 1fr;gap:28px;}
  .rl-main{padding:48px 0 8px;}
  .rl-hero{padding:44px 0 40px;}
}
@media (max-width:767.98px){
  .rl-deflist__row{grid-template-columns:minmax(0,1fr);gap:8px;padding:16px 18px;}
  .rl-cta{padding:32px 22px;margin-bottom:56px;}
  .rl-cta__actions{width:100%;}
  .rl-cta__actions .btn-rl-primary,
  .rl-cta__actions .btn-rl-ghost{width:100%;}
}
@media (max-width:575.98px){
  body{font-size:15px;}
  .rl-container{padding:0 16px;}
  .rl-grid-3{grid-template-columns:minmax(0,1fr);}
  .rl-footer__grid{grid-template-columns:minmax(0,1fr);}
  .rl-card,.rl-step,.rl-entry{padding:18px 16px;}
  .rl-hero h1{font-size:26px;}
  .rl-hero__lead{font-size:15px;}
  .rl-section{padding-bottom:44px;}
  .rl-topbar__tip{display:none;}
  .rl-footer__bottom{flex-direction:column;gap:8px;}
}

/* roulang page: category2 */
:root{
  --bg-deep:#05070F;
  --bg-base:#0A0F22;
  --bg-elev:#111834;
  --brand:#3FD9FF;
  --brand-2:#7A6BFF;
  --accent:#FFCB6B;
  --ok:#38D39F;
  --warn:#FFB454;
  --err:#FF6B7A;
  --t1:#E9F1FF;
  --t2:#A7B6D6;
  --t3:#6F7EA0;
  --glass:rgba(255,255,255,.055);
  --glass-bd:rgba(120,190,255,.16);
  --line:rgba(255,255,255,.08);
  --r-card:18px;
  --r-panel:24px;
  --r-btn:12px;
  --r-img:14px;
  --shadow:0 18px 44px -22px rgba(0,0,0,.85);
  --shadow-hover:0 26px 56px -20px rgba(0,0,0,.9);
  --glow:0 0 22px rgba(63,217,255,.38);
  --glow-hover:0 0 30px rgba(63,217,255,.55);
  --ease:.24s cubic-bezier(.22,.61,.36,1);
  --sect:88px;
}

*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:15px;
  line-height:1.85;
  color:var(--t1);
  background:
    radial-gradient(900px 520px at 10% -6%, rgba(56,120,255,.14), transparent 62%),
    radial-gradient(760px 460px at 90% 2%, rgba(140,92,255,.12), transparent 64%),
    var(--bg-base);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--brand);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:.3px;}
p{margin:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

.rl-container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
}

/* ---------- 顶部信息条 ---------- */
.rl-topbar{
  background:var(--bg-deep);
  border-bottom:1px solid rgba(80,140,220,.18);
  height:36px;
  display:flex;
  align-items:center;
  font-size:13px;
}
.rl-topbar__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;}
.rl-topbar__left{display:flex;align-items:center;gap:12px;min-width:0;}
.rl-topbar__brand{color:var(--t1);font-weight:600;white-space:nowrap;}
.rl-topbar__divider{width:1px;height:14px;background:rgba(120,190,255,.28);}
.rl-topbar__tip{color:var(--t3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.rl-topbar__right{display:flex;align-items:center;gap:20px;}
.rl-topbar__right a{color:var(--t2);font-size:13px;}
.rl-topbar__right a:hover{color:var(--brand);}

/* ---------- 主导航 ---------- */
.rl-nav{
  position:sticky;
  top:0;
  z-index:1030;
  height:68px;
  background:rgba(10,15,34,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background var(--ease), border-color var(--ease);
}
.rl-nav.is-stuck{
  background:rgba(10,15,34,.92);
  border-bottom-color:rgba(120,190,255,.14);
}
.rl-nav__inner{
  height:68px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}
.rl-brand{display:flex;align-items:center;gap:10px;color:var(--t1);font-size:19px;font-weight:700;}
.rl-brand__icon{width:26px;height:26px;display:inline-flex;align-items:center;justify-content:center;flex:0 0 26px;}
.rl-brand__icon svg{width:24px;height:24px;}
.rl-brand:hover{color:var(--t1);}
.rl-menu{display:flex;align-items:center;gap:28px;}
.rl-menu a{
  position:relative;
  font-size:15px;
  color:var(--t2);
  padding:6px 0;
  display:inline-block;
}
.rl-menu a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-2px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2));
  transform:scaleX(0);
  transform-origin:left;
  transition:transform var(--ease);
}
.rl-menu a:hover{color:var(--t1);}
.rl-menu a:hover::after{transform:scaleX(1);box-shadow:0 0 8px rgba(63,217,255,.75);}
.rl-menu a.active{color:var(--brand);}
.rl-menu a.active::after{transform:scaleX(1);box-shadow:0 0 8px rgba(63,217,255,.75);}
.rl-nav__cta{display:flex;align-items:center;gap:12px;}

/* ---------- 按钮 ---------- */
.btn-rl-primary{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 26px;
  border:0;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  color:#04121F;
  background:linear-gradient(120deg,var(--brand),var(--brand-2));
  box-shadow:var(--glow);
  transition:transform var(--ease), box-shadow var(--ease), filter var(--ease);
  cursor:pointer;
  white-space:nowrap;
}
.btn-rl-primary:hover{color:#04121F;filter:brightness(1.06);transform:translateY(-2px);box-shadow:var(--glow-hover);}
.btn-rl-primary:active{transform:translateY(1px);}
.btn-rl-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 24px;
  border:1px solid var(--glass-bd);
  border-radius:var(--r-btn);
  background:transparent;
  color:var(--t1);
  font-size:15px;
  font-weight:600;
  transition:border-color var(--ease), color var(--ease), box-shadow var(--ease), transform var(--ease);
  cursor:pointer;
  white-space:nowrap;
}
.btn-rl-ghost:hover{
  color:var(--brand);
  border-color:rgba(63,217,255,.55);
  box-shadow:inset 0 0 22px rgba(63,217,255,.14);
  transform:translateY(-2px);
}
.btn-rl-ghost:active{transform:translateY(1px);}
.btn-rl-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-rl-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--brand);
}
.btn-rl-link i{transition:transform var(--ease);font-size:12px;}
.btn-rl-link:hover i{transform:translateX(3px);}
.rl-burger{
  display:none;
  width:44px;height:44px;
  align-items:center;
  justify-content:center;
  border:1px solid var(--glass-bd);
  border-radius:var(--r-btn);
  background:var(--glass);
  color:var(--t1);
  font-size:18px;
  cursor:pointer;
}

/* ---------- 抽屉 ---------- */
.offcanvas.rl-drawer{
  width:320px;
  background:rgba(10,15,34,.97);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-left:1px solid var(--glass-bd);
  color:var(--t1);
}
.rl-drawer__head{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 20px;
  border-bottom:1px solid var(--line);
}
.rl-drawer__title{font-size:16px;font-weight:700;color:var(--t1);}
.rl-drawer__body{padding:8px 20px 0;}
.rl-drawer__body a{
  display:flex;align-items:center;justify-content:space-between;
  height:48px;
  color:var(--t2);
  font-size:15px;
  border-bottom:1px solid var(--line);
}
.rl-drawer__body a:hover,.rl-drawer__body a.active{color:var(--brand);}
.rl-drawer__foot{
  position:absolute;left:0;right:0;bottom:0;
  padding:16px 20px 22px;
  border-top:1px solid var(--line);
  background:rgba(5,7,15,.7);
}
.rl-drawer__foot .btn-rl-primary{width:100%;}

/* ---------- 页面 Hero ---------- */
.rl-page-hero{
  position:relative;
  padding:52px 0 56px;
  background:#070C1C url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  overflow:hidden;
}
.rl-page-hero::before{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg, rgba(5,7,15,.78) 0%, rgba(5,7,15,.92) 60%, rgba(10,15,34,.98) 100%);
}
.rl-page-hero::after{
  content:"";
  position:absolute;
  right:-140px;top:-160px;
  width:520px;height:520px;
  border-radius:50%;
  border:1px solid rgba(63,217,255,.18);
  box-shadow:0 0 120px rgba(122,107,255,.16) inset;
  pointer-events:none;
}
.rl-page-hero .rl-container{position:relative;z-index:2;}
.rl-breadcrumb{
  display:flex;align-items:center;gap:8px;
  font-size:14px;color:var(--t2);margin-bottom:22px;flex-wrap:wrap;
}
.rl-breadcrumb a{color:var(--t2);}
.rl-breadcrumb a:hover{color:var(--brand);}
.rl-breadcrumb .sep{color:var(--t3);}
.rl-breadcrumb .cur{color:var(--t1);}
.rl-hero__badge{
  display:inline-flex;align-items:center;gap:8px;
  height:26px;padding:0 14px;border-radius:999px;
  font-size:13px;font-weight:600;
  color:var(--brand);
  background:rgba(63,217,255,.12);
  border:1px solid rgba(63,217,255,.28);
  margin-bottom:18px;
}
.rl-page-hero h1{
  font-size:clamp(30px,4.2vw,46px);
  font-weight:800;
  letter-spacing:.5px;
  line-height:1.24;
  margin-bottom:18px;
}
.rl-page-hero .rl-hero__lead{
  max-width:720px;
  font-size:16px;
  color:var(--t2);
  line-height:1.85;
  margin-bottom:26px;
}
.rl-hero__meta{
  display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px;
}
.rl-chip{
  display:inline-flex;align-items:center;gap:7px;
  height:28px;padding:0 14px;border-radius:999px;
  font-size:13px;color:var(--t2);
  background:var(--glass);
  border:1px solid var(--glass-bd);
}
.rl-chip i{color:var(--brand);font-size:12px;}
.rl-hero__cta{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- 通用板块 ---------- */
.rl-section{padding:var(--sect) 0;}
.rl-section--tight{padding:56px 0;}
.rl-sect-head{margin-bottom:38px;}
.rl-sect-head--split{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;
}
.rl-sect-head h2{
  font-size:clamp(24px,2.6vw,32px);
  font-weight:700;
  margin-bottom:12px;
}
.rl-sect-head p{color:var(--t2);font-size:15px;max-width:760px;}
.rl-eyebrow{
  display:inline-block;
  font-size:13px;
  font-weight:600;
  letter-spacing:1px;
  color:var(--brand);
  margin-bottom:10px;
}
.rl-divider{
  height:1px;
  background:linear-gradient(90deg,rgba(63,217,255,.6),rgba(122,107,255,.35),transparent);
  border:0;margin:0;
}

/* ---------- 平台切换 ---------- */
.rl-pills{
  display:flex;flex-wrap:wrap;gap:10px;
  padding:0;margin:0 0 32px;border:0;
}
.rl-pills .nav-item{list-style:none;}
.rl-pills .nav-link{
  border-radius:999px;
  border:1px solid var(--glass-bd);
  background:var(--glass);
  color:var(--t2);
  padding:9px 24px;
  font-size:15px;
  font-weight:600;
  transition:all var(--ease);
}
.rl-pills .nav-link:hover{color:var(--t1);border-color:rgba(63,217,255,.4);}
.rl-pills .nav-link.active{
  background:linear-gradient(120deg,var(--brand),var(--brand-2));
  color:#04121F;
  border-color:transparent;
  box-shadow:var(--glow);
}

/* ---------- 下载卡 ---------- */
.rl-grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.rl-grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.dl-card{
  display:flex;flex-direction:column;
  background:var(--glass);
  border:1px solid var(--glass-bd);
  border-radius:var(--r-card);
  padding:22px;
  box-shadow:var(--shadow);
  transition:transform var(--ease), border-color var(--ease), box-shadow var(--ease);
}
.dl-card:hover{
  transform:translateY(-4px);
  border-color:rgba(63,217,255,.32);
  box-shadow:var(--shadow-hover), 0 0 0 1px rgba(63,217,255,.22);
}
.dl-card__cover{
  position:relative;
  border-radius:var(--r-img);
  overflow:hidden;
  aspect-ratio:16/10;
  background:linear-gradient(135deg, rgba(63,217,255,.14), rgba(122,107,255,.12));
  margin-bottom:18px;
}
.dl-card__cover img{
  width:100%;height:100%;object-fit:cover;
  transition:transform var(--ease);
}
.dl-card:hover .dl-card__cover img{transform:scale(1.03);}
.dl-card__tag{
  position:absolute;left:12px;top:12px;
  height:24px;padding:0 12px;border-radius:999px;
  display:inline-flex;align-items:center;
  font-size:13px;font-weight:600;
  color:var(--brand);
  background:rgba(6,12,26,.72);
  border:1px solid rgba(63,217,255,.3);
  backdrop-filter:blur(6px);
}
.dl-card__title{
  display:flex;align-items:center;gap:10px;
  font-size:1.1rem;font-weight:600;line-height:1.5;
  margin-bottom:10px;
}
.dl-card__title i{color:var(--brand);font-size:20px;}
.dl-card__desc{color:var(--t2);font-size:14px;line-height:1.8;margin-bottom:16px;}
.dl-card__spec{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:12px 0;
  margin-bottom:18px;
  display:grid;gap:8px;
}
.dl-card__spec div{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--t3);
}
.dl-card__spec strong{color:var(--t1);font-weight:600;font-size:13px;}
.dl-card__spec .accent{color:var(--accent);font-variant-numeric:tabular-nums;}
.dl-card__actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:auto;}
.dl-card__actions .btn-rl-primary,
.dl-card__actions .btn-rl-ghost{flex:1 1 150px;}

/* ---------- 规格对照 ---------- */
.rl-spec{
  background:var(--glass);
  border:1px solid var(--glass-bd);
  border-radius:var(--r-panel);
  padding:12px 26px;
  box-shadow:var(--shadow);
}
.rl-spec__row{
  display:flex;align-items:center;gap:20px;
  min-height:56px;
  padding:12px 0;
  border-bottom:1px solid var(--line);
}
.rl-spec__row:last-child{border-bottom:0;}
.rl-spec__name{
  display:flex;align-items:center;gap:12px;
  flex:0 0 220px;
  font-size:15px;font-weight:600;color:var(--t1);
}
.rl-spec__name i{color:var(--brand);font-size:17px;}
.rl-spec__value{font-size:14px;color:var(--t2);flex:1 1 auto;}

/* ---------- 图文交替 ---------- */
.rl-split{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:44px;
  align-items:center;
}
.rl-split + .rl-split{margin-top:56px;}
.rl-split__media{
  border-radius:var(--r-panel);
  overflow:hidden;
  border:1px solid var(--glass-bd);
  box-shadow:var(--shadow);
  aspect-ratio:16/10;
  background:linear-gradient(135deg, rgba(63,217,255,.12), rgba(122,107,255,.1));
}
.rl-split__media img{width:100%;height:100%;object-fit:cover;}
.rl-split__text h3{font-size:22px;font-weight:600;margin-bottom:14px;}
.rl-split__text p{color:var(--t2);font-size:15px;margin-bottom:18px;}
.rl-points{display:grid;gap:12px;margin-bottom:20px;}
.rl-points li{
  display:flex;gap:12px;align-items:flex-start;
  font-size:14px;color:var(--t2);line-height:1.8;
}
.rl-points i{color:var(--brand);font-size:14px;margin-top:6px;}

/* ---------- 提示框 ---------- */
.rl-note{
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--glass-bd);
  border-left:4px solid var(--brand);
  padding:16px 20px;
  font-size:14px;
  color:var(--t2);
  line-height:1.8;
}
.rl-note--warn{border-left-color:var(--warn);}
.rl-note strong{color:var(--t1);}
.rl-notes{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:26px;}

/* ---------- FAQ ---------- */
.rl-faq{max-width:900px;margin:0 auto;}
.rl-faq .accordion-item{
  background:transparent;
  border:0;
  border-bottom:1px solid var(--line);
  border-radius:0;
}
.rl-faq .accordion-item:first-of-type{border-top:1px solid var(--line);}
.rl-faq .accordion-button{
  background:transparent;
  color:var(--t1);
  font-size:16px;
  font-weight:600;
  padding:20px 44px 20px 0;
  box-shadow:none;
  border-radius:0;
  transition:background var(--ease), color var(--ease), padding var(--ease);
}
.rl-faq .accordion-button:not(.collapsed){
  color:var(--brand);
  background:var(--glass);
  padding-left:16px;
  box-shadow:inset 3px 0 0 var(--brand), 0 0 24px -10px rgba(63,217,255,.6);
}
.rl-faq .accordion-button:focus{box-shadow:none;border-color:transparent;}
.rl-faq .accordion-button::after{
  background-image:none;
  content:"+";
  font-family:inherit;
  font-size:20px;
  font-weight:600;
  color:var(--brand);
  width:24px;height:24px;
  display:flex;align-items:center;justify-content:center;
  transform:none;
  transition:transform var(--ease);
}
.rl-faq .accordion-button:not(.collapsed)::after{content:"−";transform:rotate(180deg);}
.rl-faq .accordion-body{
  padding:4px 16px 22px 16px;
  color:var(--t2);
  font-size:15px;
  line-height:1.9;
}

/* ---------- 通栏 CTA ---------- */
.rl-cta{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-panel);
  border:1px solid rgba(63,217,255,.28);
  background:
    radial-gradient(600px 300px at 12% 0%, rgba(56,120,255,.16), transparent 60%),
    radial-gradient(560px 300px at 88% 100%, rgba(140,92,255,.14), transparent 62%),
    var(--bg-elev);
  box-shadow:inset 0 0 60px rgba(63,217,255,.07), var(--shadow);
  padding:48px 40px;
  text-align:center;
}
.rl-cta::before{
  content:"";
  position:absolute;
  left:-10%;right:-10%;top:50%;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(63,217,255,.35),rgba(122,107,255,.3),transparent);
}
.rl-cta h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:14px;position:relative;}
.rl-cta p{color:var(--t2);font-size:15px;max-width:640px;margin:0 auto 28px;position:relative;}
.rl-cta__actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;position:relative;}
.rl-cta__note{margin-top:20px;font-size:13px;color:var(--t3);position:relative;}

/* ---------- 相关入口卡 ---------- */
.rl-rel{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:var(--glass);
  border:1px solid var(--glass-bd);
  border-radius:var(--r-card);
  padding:20px 22px;
  transition:transform var(--ease), border-color var(--ease), box-shadow var(--ease);
}
.rl-rel:hover{transform:translateY(-4px);border-color:rgba(63,217,255,.32);box-shadow:var(--shadow-hover);}
.rl-rel__text h3{font-size:17px;font-weight:600;margin-bottom:6px;color:var(--t1);}
.rl-rel__text p{font-size:14px;color:var(--t2);}
.rl-rel i{color:var(--brand);font-size:16px;transition:transform var(--ease);}
.rl-rel:hover i{transform:translateX(4px);}
.rl-rel-link{display:block;color:inherit;}
.rl-rel-link:hover{color:inherit;}

/* ---------- 页脚 ---------- */
.rl-footer{
  margin-top:var(--sect);
  background:var(--bg-deep);
  border-top:1px solid rgba(120,190,255,.14);
  position:relative;
  padding-top:56px;
}
.rl-footer::before{
  content:"";
  position:absolute;left:0;right:0;top:-1px;height:1px;
  background:linear-gradient(90deg,rgba(63,217,255,.75),rgba(122,107,255,.5),transparent);
}
.rl-footer__grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:36px;
  padding-bottom:44px;
}
.rl-footer__brand{
  display:flex;align-items:center;gap:10px;
  font-size:17px;font-weight:700;color:var(--t1);
  margin-bottom:14px;
}
.rl-footer p{color:var(--t2);font-size:14px;line-height:1.85;max-width:340px;}
.rl-footer h4{font-size:15px;font-weight:600;margin-bottom:16px;color:var(--t1);}
.rl-footer ul{display:grid;gap:10px;}
.rl-footer ul a{
  font-size:14px;color:var(--t2);
  display:inline-block;
  transition:color var(--ease), transform var(--ease);
}
.rl-footer ul a:hover{color:var(--brand);transform:translateX(2px);}
.rl-footer__bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line);
  padding:20px 0 26px;
  font-size:13px;color:var(--t3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  :root{--sect:72px;}
  .rl-split{gap:32px;}
}
@media (max-width:991.98px){
  :root{--sect:64px;}
  .rl-menu{display:none;}
  .rl-burger{display:inline-flex;}
  .rl-grid-2,.rl-grid-3,.rl-notes{grid-template-columns:1fr;}
  .rl-split{grid-template-columns:1fr;}
  .rl-footer__grid{grid-template-columns:1fr 1fr;}
  .rl-spec__row{flex-direction:column;align-items:flex-start;gap:6px;min-height:0;}
  .rl-spec__name{flex:0 0 auto;}
  .rl-cta{padding:40px 24px;}
}
@media (max-width:767.98px){
  :root{--sect:52px;}
  body{font-size:14.5px;}
  .rl-topbar__right,.rl-topbar__divider,.rl-topbar__tip{display:none;}
  .rl-page-hero{padding:36px 0 40px;}
  .rl-hero__cta{gap:12px;}
  .rl-hero__cta .btn-rl-primary,
  .rl-hero__cta .btn-rl-ghost{width:100%;}
  .rl-nav__cta .btn-rl-primary{display:none;}
  .rl-spec{padding:8px 18px;}
  .dl-card{padding:16px;}
  .rl-rel{flex-direction:column;align-items:flex-start;}
}
@media (max-width:575.98px){
  .rl-container{padding:0 16px;}
  .rl-brand{font-size:17px;}
  .rl-footer__grid{grid-template-columns:1fr;}
  .rl-cta__actions .btn-rl-primary,
  .rl-cta__actions .btn-rl-ghost{width:100%;}
  .dl-card__actions .btn-rl-primary,
  .dl-card__actions .btn-rl-ghost{flex:1 1 100%;}
  .rl-pills .nav-link{padding:8px 18px;font-size:14px;}
}

/* roulang page: category3 */
:root{
  --bg-deep:#05070F;
  --bg-base:#0A0F22;
  --bg-elev:#111834;
  --brand:#3FD9FF;
  --brand-2:#7A6BFF;
  --accent:#FFCB6B;
  --t1:#E9F1FF;
  --t2:#A7B6D6;
  --t3:#6F7EA0;
  --glass:rgba(255,255,255,.055);
  --glass-bd:rgba(120,190,255,.16);
  --ok:#38D39F;
  --warn:#FFB454;
  --err:#FF6B7A;
  --r-card:18px;
  --r-panel:24px;
  --r-btn:12px;
  --r-img:14px;
  --sh:0 18px 44px -22px rgba(0,0,0,.85);
  --sh-hover:0 26px 56px -20px rgba(0,0,0,.9),0 0 0 1px rgba(63,217,255,.22);
  --ease:.24s cubic-bezier(.22,.61,.36,1);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:104px}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--t1);
  background-color:var(--bg-base);
  background-image:
    radial-gradient(900px 520px at 12% -8%,rgba(56,120,255,.16),transparent 62%),
    radial-gradient(760px 460px at 92% 6%,rgba(140,92,255,.12),transparent 60%);
  background-repeat:no-repeat;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color var(--ease)}
a:hover{color:#8ce8ff}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--t1);letter-spacing:.3px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
::selection{background:rgba(63,217,255,.28)}

.rl-container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}

/* ---------- 顶部信息条 ---------- */
.rl-topbar{background:#05070F;border-bottom:1px solid rgba(80,140,220,.18);height:36px;font-size:13px}
.rl-topbar__inner{display:flex;align-items:center;justify-content:space-between;height:36px;gap:16px}
.rl-topbar__left{display:flex;align-items:center;gap:12px;min-width:0}
.rl-topbar__brand{color:var(--t1);font-weight:600;white-space:nowrap}
.rl-topbar__divider{width:1px;height:14px;background:rgba(120,190,255,.28);flex:0 0 auto}
.rl-topbar__tip{color:var(--t3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rl-topbar__right{display:flex;align-items:center;flex:0 0 auto}
.rl-topbar__right a{color:var(--t2);margin-left:18px;font-size:13px}
.rl-topbar__right a:hover{color:var(--brand)}

/* ---------- 主导航 ---------- */
.rl-nav{
  position:sticky;top:0;z-index:1030;
  background:rgba(10,15,34,.72);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background var(--ease),border-color var(--ease);
}
.rl-nav.is-scrolled{background:rgba(10,15,34,.94);border-bottom-color:rgba(120,190,255,.14)}
.rl-nav__inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px}
.rl-brand{display:flex;align-items:center;gap:10px;color:var(--t1);font-size:19px;font-weight:700;letter-spacing:.5px;flex:0 0 auto}
.rl-brand:hover{color:var(--t1)}
.rl-brand__icon{display:inline-flex;width:26px;height:26px}
.rl-brand__icon svg{width:26px;height:26px;display:block}
.rl-menu{display:flex;align-items:center;gap:28px}
.rl-menu a{position:relative;display:inline-block;padding:6px 0;font-size:15px;color:var(--t2);white-space:nowrap}
.rl-menu a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 8px rgba(63,217,255,.8);
  transform:scaleX(0);transform-origin:left;transition:transform var(--ease);
}
.rl-menu a:hover{color:var(--t1)}
.rl-menu a:hover::after{transform:scaleX(1)}
.rl-menu a.active{color:var(--brand)}
.rl-menu a.active::after{transform:scaleX(1)}
.rl-nav__cta{display:flex;align-items:center;gap:14px;flex:0 0 auto}

.btn-rl-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border:0;border-radius:var(--r-btn);
  background:linear-gradient(118deg,var(--brand) 0%,var(--brand-2) 100%);
  color:#04121C;font-size:15px;font-weight:700;letter-spacing:.3px;
  box-shadow:0 0 22px rgba(63,217,255,.38);
  transition:transform var(--ease),box-shadow var(--ease),filter var(--ease);
}
.btn-rl-primary:hover{color:#04121C;filter:brightness(1.07);transform:translateY(-2px);box-shadow:0 0 30px rgba(63,217,255,.55)}
.btn-rl-primary:active{transform:translateY(1px)}
.btn-rl-primary.is-disabled{opacity:.45;box-shadow:none;pointer-events:none}

.btn-rl-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:var(--r-btn);
  background:transparent;border:1px solid var(--glass-bd);color:var(--t1);
  font-size:15px;font-weight:600;transition:all var(--ease);
}
.btn-rl-ghost:hover{color:var(--brand);border-color:rgba(63,217,255,.5);box-shadow:inset 0 0 20px rgba(63,217,255,.14);transform:translateY(-2px)}

.btn-rl-link{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--brand)}
.btn-rl-link i{transition:transform var(--ease)}
.btn-rl-link:hover i{transform:translateX(3px)}

.rl-burger{
  display:none;width:44px;height:44px;border-radius:12px;
  background:var(--glass);border:1px solid var(--glass-bd);color:var(--t1);font-size:17px;
  transition:all var(--ease);
}
.rl-burger:hover{color:var(--brand);border-color:rgba(63,217,255,.45)}

/* ---------- 抽屉导航 ---------- */
.rl-drawer{background:rgba(8,12,28,.98);border-left:1px solid rgba(120,190,255,.16);width:min(320px,86vw)}
.rl-drawer .offcanvas-header{border-bottom:1px solid rgba(255,255,255,.08);padding:18px 20px}
.rl-drawer__title{font-size:17px;font-weight:700;color:var(--t1)}
.rl-drawer .btn-close{filter:invert(1) grayscale(1) brightness(1.7);opacity:.75}
.rl-drawer .offcanvas-body{padding:0;display:flex;flex-direction:column}
.rl-drawer__link{
  display:flex;align-items:center;height:52px;padding:0 20px;
  color:var(--t2);font-size:15px;border-bottom:1px solid rgba(255,255,255,.07);
  transition:all var(--ease);
}
.rl-drawer__link:hover{color:var(--t1);background:rgba(63,217,255,.06);padding-left:24px}
.rl-drawer__link.active{color:var(--brand);background:rgba(63,217,255,.08)}
.rl-drawer__foot{margin-top:auto;padding:20px}
.rl-drawer__foot .btn-rl-primary{width:100%}

/* ---------- Hero ---------- */
.rl-hero{
  position:relative;padding:66px 0 62px;overflow:hidden;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
}
.rl-hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(620px 320px at 50% 0%,rgba(56,120,255,.20),transparent 68%),
    linear-gradient(180deg,rgba(5,7,15,.72) 0%,rgba(10,15,34,.86) 100%);
}
.rl-hero::after{
  content:"";position:absolute;left:-6%;top:-40%;width:112%;height:180%;
  border:1px solid rgba(63,217,255,.18);border-radius:50%;opacity:.35;pointer-events:none;
}
.rl-hero__inner{position:relative;z-index:2;max-width:820px;margin:0 auto;text-align:center}
.rl-crumb{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:8px;font-size:14px;color:var(--t2);margin-bottom:18px}
.rl-crumb a{color:var(--t2)}
.rl-crumb a:hover{color:var(--brand)}
.rl-crumb span.sep{color:var(--t3)}
.rl-crumb .current{color:var(--t1)}
.rl-badge{
  display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 12px;border-radius:999px;
  background:rgba(63,217,255,.12);color:var(--brand);font-size:13px;font-weight:600;
}
.rl-hero h1{font-size:clamp(27px,3.9vw,42px);line-height:1.26;font-weight:800;letter-spacing:.5px;margin-top:16px}
.rl-hero__lead{margin-top:16px;font-size:17px;color:var(--t2)}
.rl-hero__desc{margin-top:10px;font-size:15px;color:var(--t3);line-height:1.8}
.rl-hero__meta{display:flex;flex-wrap:wrap;justify-content:center;gap:22px;margin-top:26px;font-size:13px;color:var(--t3)}
.rl-hero__meta i{color:var(--brand);margin-right:6px}

/* ---------- 通用板块 ---------- */
.rl-section{padding:88px 0}
.rl-section--alt{background:linear-gradient(180deg,rgba(17,24,52,.62) 0%,rgba(10,15,34,0) 100%)}
.rl-section__head{max-width:760px;margin-bottom:38px}
.rl-section__head--center{margin-left:auto;margin-right:auto;text-align:center}
.rl-eyebrow{display:inline-block;font-size:13px;letter-spacing:2px;color:var(--brand);margin-bottom:12px}
.rl-section__head h2{font-size:clamp(23px,2.6vw,32px);line-height:1.32}
.rl-section__head p{margin-top:14px;font-size:15px;color:var(--t2)}

/* ---------- 分类标签 chips ---------- */
.rl-chips{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;margin-bottom:40px}
.rl-chip{
  display:inline-flex;align-items:center;height:36px;padding:0 18px;border-radius:999px;
  background:var(--glass);border:1px solid var(--glass-bd);color:var(--t2);
  font-size:14px;transition:all var(--ease);
}
.rl-chip:hover{color:var(--t1);border-color:rgba(63,217,255,.42);transform:translateY(-2px)}
.rl-chip.is-active{
  background:rgba(63,217,255,.16);border-color:rgba(63,217,255,.52);color:var(--brand);
  font-weight:600;box-shadow:0 0 18px rgba(63,217,255,.22);
}

/* ---------- FAQ 折叠组 ---------- */
.rl-help{max-width:820px;margin:0 auto}
.rl-faq__group + .rl-faq__group{margin-top:44px}
.rl-faq__group-title{
  display:flex;align-items:center;gap:10px;
  font-size:18px;font-weight:600;color:var(--t1);margin-bottom:10px;
}
.rl-faq__group-title::before{
  content:"";width:8px;height:8px;border-radius:50%;background:var(--brand);
  box-shadow:0 0 12px rgba(63,217,255,.85);flex:0 0 auto;
}
.rl-faq__group-note{margin:0 0 14px 18px;font-size:13px;color:var(--t3)}

.accordion.rl-faq{--bs-accordion-bg:transparent;--bs-accordion-border-width:0;background:transparent}
.rl-faq .accordion-item{
  background:transparent;border:0;border-top:1px solid rgba(255,255,255,.08);border-radius:0;
}
.rl-faq .accordion-item:last-child{border-bottom:1px solid rgba(255,255,255,.08)}
.rl-faq .accordion-header{margin:0}
.rl-faq .accordion-button{
  position:relative;width:100%;padding:20px 44px 20px 16px;
  background:transparent;border:0;border-radius:0;box-shadow:none;
  color:var(--t1);font-size:16px;font-weight:600;line-height:1.6;text-align:left;
  transition:background var(--ease),color var(--ease),padding var(--ease);
}
.rl-faq .accordion-button::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 12px rgba(63,217,255,.85);
  opacity:0;transition:opacity var(--ease);
}
.rl-faq .accordion-button::after{
  position:absolute;right:14px;top:50%;transform:translateY(-50%);
  content:"+";font-size:20px;font-weight:400;color:var(--brand);
  width:auto;height:auto;background-image:none;line-height:1;
  transition:transform var(--ease),color var(--ease);
}
.rl-faq .accordion-button:hover{background:rgba(255,255,255,.03);color:var(--brand)}
.rl-faq .accordion-button:focus{box-shadow:none;outline:2px solid var(--brand);outline-offset:-2px}
.rl-faq .accordion-button:not(.collapsed){
  background:var(--glass);color:var(--t1);padding-left:20px;
}
.rl-faq .accordion-button:not(.collapsed)::before{opacity:1}
.rl-faq .accordion-button:not(.collapsed)::after{
  content:"−";transform:translateY(-50%);color:var(--t1);
}
.rl-faq .accordion-body{
  padding:0 20px 24px 20px;
  background:var(--glass);
  font-size:15px;line-height:1.9;color:var(--t2);
}
.rl-faq .accordion-body strong{color:var(--t1);font-weight:600}
.rl-faq .accordion-body ul{margin:10px 0 0;padding-left:2px}
.rl-faq .accordion-body li{position:relative;padding-left:16px;margin-bottom:6px}
.rl-faq .accordion-body li::before{
  content:"";position:absolute;left:0;top:12px;width:6px;height:6px;border-radius:50%;
  background:rgba(63,217,255,.85);
}

/* ---------- 步骤 ---------- */
.rl-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-bottom:28px}
.rl-step{
  position:relative;padding:26px 22px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--glass-bd);box-shadow:var(--sh);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.rl-step:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(63,217,255,.32)}
.rl-step__num{
  display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;
  border-radius:50%;background:rgba(63,217,255,.14);border:1px solid rgba(63,217,255,.45);
  color:var(--brand);font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;
  box-shadow:0 0 16px rgba(63,217,255,.3);margin-bottom:14px;
}
.rl-step h3{font-size:17px;font-weight:600;margin-bottom:8px}
.rl-step p{font-size:14px;color:var(--t2);line-height:1.8}

/* ---------- 提示框 ---------- */
.rl-callouts{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.rl-callout{
  display:flex;gap:14px;padding:20px;border-radius:var(--r-img);
  background:var(--glass);border:1px solid var(--glass-bd);border-left:4px solid var(--brand);
}
.rl-callout--warn{border-left-color:var(--warn)}
.rl-callout i{color:var(--brand);font-size:17px;margin-top:4px}
.rl-callout--warn i{color:var(--warn)}
.rl-callout h3{font-size:15px;font-weight:600;margin-bottom:6px}
.rl-callout p{font-size:14px;color:var(--t2);line-height:1.8}

/* ---------- 图文分栏 ---------- */
.rl-split{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}
.rl-split h2{font-size:clamp(23px,2.6vw,32px);line-height:1.32;margin-bottom:16px}
.rl-split p{font-size:15px;color:var(--t2);margin-bottom:20px}
.rl-checklist li{
  display:flex;gap:12px;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.08);
  font-size:15px;color:var(--t2);
}
.rl-checklist li:first-child{border-top:1px solid rgba(255,255,255,.08)}
.rl-checklist i{color:var(--brand);margin-top:5px}
.rl-media{
  position:relative;border-radius:var(--r-panel);overflow:hidden;border:1px solid var(--glass-bd);
  box-shadow:var(--sh);background:linear-gradient(135deg,rgba(63,217,255,.12),rgba(122,107,255,.12));
  aspect-ratio:16/11;
}
.rl-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.rl-media:hover img{transform:scale(1.04)}
.rl-media__tag{
  position:absolute;left:16px;bottom:16px;
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:999px;
  background:rgba(5,7,15,.72);border:1px solid var(--glass-bd);color:var(--t1);font-size:13px;
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
}

/* ---------- CTA ---------- */
.rl-cta{
  position:relative;overflow:hidden;text-align:center;
  padding:52px 40px;border-radius:var(--r-panel);
  background:var(--glass);border:1px solid var(--glass-bd);
  box-shadow:inset 0 0 0 1px rgba(63,217,255,.12),var(--sh);
}
.rl-cta::before{
  content:"";position:absolute;left:-10%;right:-10%;top:-40%;height:180%;
  background:radial-gradient(600px 220px at 50% 50%,rgba(63,217,255,.18),transparent 70%);
  opacity:.5;pointer-events:none;
}
.rl-cta::after{
  content:"";position:absolute;left:8%;right:8%;top:50%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(63,217,255,.35),rgba(122,107,255,.3),transparent);
  opacity:.4;pointer-events:none;
}
.rl-cta > *{position:relative;z-index:2}
.rl-cta h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:14px}
.rl-cta p{max-width:620px;margin:0 auto;font-size:15px;color:var(--t2)}
.rl-cta__actions{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;margin-top:28px}

/* ---------- 卡片 ---------- */
.rl-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.rl-card{
  display:flex;flex-direction:column;padding:20px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--glass-bd);box-shadow:var(--sh);color:var(--t1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.rl-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(63,217,255,.32);color:var(--t1)}
.rl-card__media{
  position:relative;border-radius:var(--r-img);overflow:hidden;margin-bottom:18px;
  aspect-ratio:16/9;background:linear-gradient(135deg,rgba(63,217,255,.12),rgba(122,107,255,.12));
}
.rl-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.rl-card:hover .rl-card__media img{transform:scale(1.03)}
.rl-card__tag{
  position:absolute;left:12px;top:12px;display:inline-flex;align-items:center;height:24px;padding:0 12px;
  border-radius:999px;background:rgba(63,217,255,.16);color:var(--brand);font-size:13px;font-weight:600;
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
}
.rl-card h3{font-size:17px;font-weight:600;line-height:1.5;margin-bottom:8px}
.rl-card p{font-size:14px;color:var(--t2);line-height:1.8;margin-bottom:16px}
.rl-card__foot{margin-top:auto;display:flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--brand)}
.rl-card__foot i{transition:transform var(--ease)}
.rl-card:hover .rl-card__foot i{transform:translateX(3px)}

/* ---------- 页脚 ---------- */
.rl-footer{position:relative;margin-top:20px;padding:64px 0 0;background:#060A18;border-top:1px solid transparent}
.rl-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(63,217,255,.6),rgba(122,107,255,.45),transparent);
}
.rl-footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.rl-footer__brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:var(--t1);margin-bottom:14px}
.rl-footer p{font-size:14px;color:var(--t2);line-height:1.8;max-width:320px}
.rl-footer h4{font-size:15px;font-weight:600;margin-bottom:16px}
.rl-footer ul li{margin-bottom:10px}
.rl-footer ul a{display:inline-block;font-size:14px;color:var(--t2);transition:color var(--ease),transform var(--ease)}
.rl-footer ul a:hover{color:var(--brand);transform:translateX(2px)}
.rl-footer__bottom{
  margin-top:48px;padding:20px 0;border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:13px;color:var(--t3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .rl-section{padding:72px 0}
  .rl-split{gap:32px}
}
@media (max-width:991.98px){
  .rl-menu,.rl-nav__cta .btn-rl-primary{display:none}
  .rl-burger{display:inline-flex;align-items:center;justify-content:center}
  .rl-topbar__right a:nth-child(2),.rl-topbar__right a:nth-child(3){display:none}
  .rl-section{padding:64px 0}
  .rl-steps{grid-template-columns:1fr}
  .rl-callouts{grid-template-columns:1fr}
  .rl-split{grid-template-columns:1fr}
  .rl-media{order:-1}
  .rl-footer__grid{grid-template-columns:1fr 1fr}
  .rl-hero{padding:56px 0 52px}
}
@media (max-width:767.98px){
  body{font-size:15px;line-height:1.8}
  .rl-section{padding:52px 0}
  .rl-hero h1{font-size:25px}
  .rl-hero__lead{font-size:16px}
  .rl-cards{grid-template-columns:1fr}
  .rl-chips{justify-content:flex-start}
  .rl-cta{padding:38px 22px}
  .rl-card,.rl-step{padding:18px}
  .rl-faq .accordion-button{font-size:15px;padding:18px 40px 18px 14px}
  .rl-faq .accordion-body{padding:0 16px 20px 16px;font-size:14.5px}
  .rl-footer{padding-top:48px}
}
@media (max-width:575.98px){
  .rl-container{padding:0 16px}
  .rl-topbar__tip{display:none}
  .rl-brand{font-size:16px}
  .rl-hero__meta{gap:12px 18px}
  .rl-cta__actions{flex-direction:column}
  .rl-cta__actions .btn-rl-primary,.rl-cta__actions .btn-rl-ghost{width:100%}
  .rl-footer__grid{grid-template-columns:1fr;gap:28px}
  .rl-footer__bottom{flex-direction:column}
}