/* roulang page: index */
:root{
  --brand-a:#00C389;
  --brand-b:#6A4BFF;
  --brand-grad:linear-gradient(135deg,#00C389 0%,#6A4BFF 100%);
  --brand-grad-soft:linear-gradient(135deg,rgba(0,195,137,.14) 0%,rgba(106,75,255,.14) 100%);
  --accent:#FF7A45;
  --dark:#0E1626;
  --bg:#F4F7F5;
  --card:#FFFFFF;
  --fill:#E9F2ED;
  --line:#E3EAE6;
  --tx:#172220;
  --tx2:#5B6B65;
  --tx3:#93A29C;
  --link:#0B8F6B;
  --r-xl:24px;
  --r-lg:20px;
  --r-img:16px;
  --r-pill:999px;
  --sh-sm:0 2px 8px rgba(14,22,38,.06);
  --sh-md:0 10px 24px rgba(14,22,38,.08);
  --sh-lg:0 24px 48px rgba(0,195,137,.16);
  --sec:88px;
  --font: "PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--tx);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--link);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-b);text-decoration:underline;}
h1,h2,h3,h4,h5{margin:0;color:var(--tx);font-weight:700;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:3px solid rgba(106,75,255,.35);outline-offset:2px;border-radius:8px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (min-width:1400px){.container{max-width:1320px;}}

/* ============ 顶部胶囊导航 ============ */
.nav-wrap{position:sticky;top:16px;z-index:1040;padding:0 16px;}
.nav-pill{
  max-width:1160px;width:100%;margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:10px 20px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.78);
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid var(--line);box-shadow:var(--sh-sm);
  transition:background .24s ease,box-shadow .24s ease,padding .24s ease;
}
.nav-wrap.is-scrolled .nav-pill{background:rgba(255,255,255,.94);box-shadow:var(--sh-md);padding:8px 20px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;background:var(--brand-grad);
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:16px;
  box-shadow:0 8px 18px rgba(0,195,137,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text b{font-size:16px;font-weight:800;color:var(--tx);letter-spacing:.3px;}
.brand-text span{font-size:11px;color:var(--tx3);letter-spacing:1.4px;}
.nav-menu{display:flex;align-items:center;gap:4px;margin:0 auto;}
.nav-menu a{
  position:relative;display:block;padding:8px 14px;font-size:15px;color:var(--tx2);
  border-radius:var(--r-pill);font-weight:500;transition:color .2s,background .2s;
}
.nav-menu a::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:0;height:4px;border-radius:4px;background:var(--brand-grad);transition:width .24s ease;
}
.nav-menu a:hover{color:var(--tx);background:var(--fill);text-decoration:none;}
.nav-menu a:hover::after{width:22px;}
.nav-menu a.active{color:var(--brand-a);font-weight:700;}
.nav-menu a.active::after{width:22px;}
.nav-cta{flex:0 0 auto;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:0;cursor:pointer;font-weight:700;font-size:15px;
  padding:12px 24px;border-radius:var(--r-pill);
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary-grad{background:var(--brand-grad);color:#fff;box-shadow:0 10px 22px rgba(0,195,137,.26);}
.btn-primary-grad:hover{transform:translateY(-2px);box-shadow:var(--sh-lg);color:#fff;text-decoration:none;}
.btn-primary-grad:active{transform:translateY(1px);}
.btn-ghost{background:#fff;color:var(--brand-a);border:1.5px solid var(--brand-a);}
.btn-ghost:hover{background:var(--fill);color:var(--brand-a);transform:translateY(-2px);text-decoration:none;}
.btn-ghost:active{transform:translateY(1px);}
.btn-dark-solid{background:#fff;color:var(--dark);}
.btn-dark-solid:hover{background:var(--brand-grad);color:#fff;transform:translateY(-2px);text-decoration:none;}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-block{width:100%;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:14px;border:1px solid var(--line);
  background:#fff;cursor:pointer;padding:0;align-items:center;justify-content:center;
}
.nav-toggle i{font-size:17px;color:var(--tx);transition:transform .24s ease;}
.nav-toggle.open i{transform:rotate(90deg);}

.mobile-drawer{
  display:none;position:fixed;top:0;left:0;right:0;z-index:1039;
  background:var(--dark);border-radius:0 0 28px 28px;
  padding:88px 20px 28px;box-shadow:0 24px 60px rgba(14,22,38,.4);
  transform:translateY(-110%);transition:transform .32s cubic-bezier(.4,0,.2,1);
}
.mobile-drawer.open{transform:translateY(0);}
.mobile-drawer a{
  display:block;height:52px;line-height:52px;padding:0 16px;color:rgba(255,255,255,.9);
  border-radius:14px;font-size:16px;margin-bottom:6px;position:relative;
}
.mobile-drawer a::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:4px;border-radius:4px;
  background:var(--brand-grad);opacity:0;transition:opacity .2s;
}
.mobile-drawer a.active{background:rgba(255,255,255,.08);color:#fff;font-weight:700;}
.mobile-drawer a.active::before{opacity:1;}
.mobile-drawer a:hover{background:rgba(255,255,255,.08);color:#fff;text-decoration:none;}
.mobile-drawer .btn{margin-top:14px;}
.drawer-backdrop{display:none;position:fixed;inset:0;background:rgba(14,22,38,.45);z-index:1038;}
.drawer-backdrop.open{display:block;}

/* ============ 通用板块 ============ */
.section{padding:var(--sec) 0;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap;}
.sec-head h2{
  font-size:clamp(22px,2.8vw,32px);font-weight:700;position:relative;padding-left:16px;line-height:1.35;
}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;background:var(--brand-grad);
}
.sec-desc{font-size:15px;color:var(--tx2);margin-top:6px;max-width:640px;}
.text-link{font-size:14px;font-weight:700;color:var(--link);display:inline-flex;align-items:center;gap:6px;}
.text-link i{transition:transform .2s ease;font-size:12px;}
.text-link:hover{color:var(--brand-b);text-decoration:none;}
.text-link:hover i{transform:translateX(3px);}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;padding:56px 0 64px;
  background:
    radial-gradient(circle at 88% 12%, rgba(106,75,255,.26) 0%, rgba(106,75,255,0) 58%),
    radial-gradient(circle at 6% 78%, rgba(0,195,137,.28) 0%, rgba(0,195,137,0) 58%),
    linear-gradient(180deg,#F7FBF8 0%,var(--bg) 100%);
}
.hero::after{
  content:"";position:absolute;right:-40px;bottom:-60px;width:320px;height:320px;pointer-events:none;
  background-image:linear-gradient(rgba(14,22,38,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(14,22,38,.05) 1px,transparent 1px);
  background-size:26px 26px;opacity:.7;
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.hero-badge-top{
  display:inline-flex;align-items:center;gap:8px;padding:6px 16px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);box-shadow:var(--sh-sm);
  font-size:13px;color:var(--tx2);font-weight:600;margin-bottom:18px;
}
.hero-badge-top i{color:var(--brand-a);}
.hero h1{
  font-size:clamp(28px,4.4vw,48px);font-weight:800;line-height:1.25;letter-spacing:.5px;margin-bottom:16px;
}
.hero h1 em{font-style:normal;background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero-sub{font-size:17px;line-height:1.8;color:var(--tx2);margin-bottom:26px;max-width:560px;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:28px;}
.hero-actions .btn{padding:15px 30px;font-size:16px;}
.badge-strip{display:flex;flex-wrap:wrap;gap:10px;}
.badge{
  display:inline-flex;align-items:center;gap:8px;height:32px;padding:2px 14px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);font-size:12px;color:var(--tx2);font-weight:600;box-shadow:var(--sh-sm);
}
.badge i{font-size:13px;}
.badge b{font-size:14px;color:var(--tx);font-variant-numeric:tabular-nums;}
.badge.orange{background:var(--accent);border-color:var(--accent);color:#fff;}
.badge.orange b{color:#fff;}
.badge.purple i{color:var(--brand-b);}
.badge.green i{color:var(--brand-a);}
.hero-visual{position:relative;}
.hero-img{
  position:relative;border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--sh-md);
  aspect-ratio:16/11;transition:transform .3s ease;
}
.hero-img img{width:100%;height:100%;object-fit:cover;}
.hero-img:hover{transform:translateY(-6px);box-shadow:var(--sh-lg);}
.hero-float{
  position:absolute;right:-8px;bottom:-16px;background:var(--accent);color:#fff;
  padding:10px 18px;border-radius:var(--r-pill);font-size:12px;font-weight:700;
  box-shadow:0 14px 28px rgba(255,122,69,.34);display:flex;align-items:center;gap:8px;
  font-variant-numeric:tabular-nums;
}
.hero-float b{font-size:15px;}

/* ============ 下载按钮组 ============ */
.dl-group{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:0;}
.dl-btn{
  display:flex;align-items:center;gap:14px;padding:16px 20px;border-radius:18px;
  background:#fff;border:1px solid var(--line);box-shadow:var(--sh-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;position:relative;overflow:hidden;
}
.dl-btn::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--brand-grad);
  transform:scaleY(0);transform-origin:center;transition:transform .24s ease;
}
.dl-btn:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:#D5E6DE;text-decoration:none;}
.dl-btn:hover::before{transform:scaleY(1);}
.dl-btn i.dl-ico{
  width:44px;height:44px;flex:0 0 44px;border-radius:14px;background:var(--fill);
  display:flex;align-items:center;justify-content:center;font-size:19px;color:var(--brand-a);
}
.dl-btn .dl-txt{display:flex;flex-direction:column;line-height:1.35;}
.dl-btn .dl-txt b{font-size:15px;font-weight:700;color:var(--tx);}
.dl-btn .dl-txt span{font-size:11.5px;color:var(--tx3);font-variant-numeric:tabular-nums;}

.dl-band{
  background:var(--dark);border-radius:var(--r-xl);padding:36px 34px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  border:1px solid rgba(255,255,255,.12);
}
.dl-band h3{color:#fff;font-size:20px;font-weight:700;margin-bottom:6px;}
.dl-band p{color:rgba(255,255,255,.68);font-size:14px;}
.dl-band .badge-strip{margin-top:14px;}
.dl-band .badge{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.18);color:rgba(255,255,255,.85);}
.dl-band .badge b{color:#fff;}
.dl-band-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ============ 价值区 ============ */
.value-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.value-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--sh-sm);overflow:hidden;transition:transform .24s ease,box-shadow .24s ease;
}
.value-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:0;background:var(--brand-grad);
  transition:height .28s ease;
}
.value-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);}
.value-card:hover::before{height:3px;}
.value-card.large{padding:34px;display:flex;flex-direction:column;gap:16px;}
.vc-icon{
  width:52px;height:52px;border-radius:16px;display:flex;align-items:center;justify-content:center;
  font-size:21px;color:#fff;background:var(--brand-grad);box-shadow:0 10px 20px rgba(0,195,137,.24);
  margin-bottom:16px;
}
.value-card.large .vc-icon{margin-bottom:0;}
.vc-icon.purple{background:linear-gradient(135deg,#6A4BFF 0%,#9A7BFF 100%);box-shadow:0 10px 20px rgba(106,75,255,.24);}
.vc-icon.orange{background:linear-gradient(135deg,#FF7A45 0%,#FFA071 100%);box-shadow:0 10px 20px rgba(255,122,69,.24);}
.vc-icon.green{background:linear-gradient(135deg,#00C389 0%,#4FDDB4 100%);box-shadow:0 10px 20px rgba(0,195,137,.24);}
.value-card h3{font-size:18px;font-weight:600;line-height:1.5;margin-bottom:8px;}
.value-card p{font-size:14.5px;color:var(--tx2);line-height:1.8;}
.value-visual{
  grid-column:span 2;display:grid;grid-template-columns:1.05fr 1fr;gap:24px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);padding:28px;box-shadow:var(--sh-sm);
}
.value-visual img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-img);}
.value-list li{
  display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed var(--line);font-size:14.5px;color:var(--tx2);
}
.value-list li:last-child{border-bottom:0;}
.value-list li i{color:var(--brand-a);margin-top:5px;font-size:14px;}

/* ============ 截图轮播 ============ */
.shot{border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-sm);background:#fff;height:100%;}
.shot img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.shot:hover img{transform:scale(1.04);}
.shot-big{aspect-ratio:16/11;}
.shot-sm{aspect-ratio:4/3;}
.carousel-item .row{align-items:stretch;}
.carousel-item .col-6,.carousel-item .col-md-3{display:flex;}
.carousel-item .col-12,.carousel-item .col-md-6{display:flex;}
.shot-cap{font-size:13px;color:var(--tx3);margin-top:10px;}
.shots-ctrl{display:flex;align-items:center;justify-content:space-between;margin-top:24px;gap:20px;flex-wrap:wrap;}
.shots-ctrl .btns{display:flex;gap:10px;}
.c-btn{
  width:44px;height:44px;border-radius:50%;border:1.5px solid var(--line);background:#fff;
  display:flex;align-items:center;justify-content:center;color:var(--tx2);cursor:pointer;
  transition:all .22s ease;font-size:14px;
}
.c-btn:hover{background:var(--brand-a);border-color:var(--brand-a);color:#fff;}
.c-indicators{display:flex;gap:8px;align-items:center;}
.c-indicators button{
  width:28px;height:4px;border-radius:4px;border:0;background:#D8E4DE;cursor:pointer;padding:0;
  transition:background .24s ease,width .24s ease;
}
.c-indicators button.active{background:var(--brand-grad);width:40px;}

/* ============ 规格网格 ============ */
.spec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;}
.spec-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:22px;
  display:flex;gap:14px;align-items:flex-start;box-shadow:var(--sh-sm);transition:transform .22s,box-shadow .22s;
}
.spec-item:hover{transform:translateY(-3px);box-shadow:var(--sh-md);}
.spec-item i{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;background:var(--fill);color:var(--brand-a);
  display:flex;align-items:center;justify-content:center;font-size:16px;
}
.spec-item .st{font-size:12.5px;color:var(--tx3);letter-spacing:.4px;}
.spec-item .sv{font-size:15px;font-weight:700;color:var(--tx);font-variant-numeric:tabular-nums;}

/* ============ 评价墙 ============ */
.rail{
  display:flex;gap:20px;overflow-x:auto;padding:6px 4px 22px;scroll-snap-type:x mandatory;
  scrollbar-width:none;-ms-overflow-style:none;
}
.rail::-webkit-scrollbar{display:none;}
.review{
  flex:0 0 320px;scroll-snap-align:start;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);padding:22px;box-shadow:var(--sh-sm);transition:transform .22s,box-shadow .22s;
}
.review:hover{transform:translateY(-4px);box-shadow:var(--sh-md);}
.review.tall{margin-top:18px;}
.review-head{display:flex;align-items:center;gap:12px;margin-bottom:12px;}
.avatar{
  width:44px;height:44px;border-radius:50%;background:var(--brand-grad-soft);
  display:flex;align-items:center;justify-content:center;color:var(--brand-b);font-weight:800;font-size:15px;
  border:1px solid var(--line);
}
.review-head .name{font-size:15px;font-weight:700;}
.review-head .date{font-size:12px;color:var(--tx3);font-variant-numeric:tabular-nums;}
.stars{color:var(--accent);font-size:13px;letter-spacing:2px;margin-bottom:8px;}
.stars .off{color:var(--line);}
.review p{font-size:14px;color:var(--tx2);line-height:1.8;}

/* ============ FAQ ============ */
.acc-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-img);margin-bottom:12px;
  overflow:hidden;box-shadow:var(--sh-sm);transition:box-shadow .22s,border-color .22s;
}
.acc-item:hover{box-shadow:var(--sh-md);border-color:#D5E6DE;}
.acc-btn{
  width:100%;border:0;background:transparent;text-align:left;padding:18px 24px;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:16.5px;font-weight:700;color:var(--tx);line-height:1.6;
}
.acc-btn .plus{
  width:28px;height:28px;flex:0 0 28px;border-radius:50%;background:var(--fill);color:var(--brand-a);
  display:flex;align-items:center;justify-content:center;font-size:14px;transition:transform .32s ease,background .22s;
}
.acc-btn[aria-expanded="true"] .plus{transform:rotate(45deg);background:var(--brand-grad);color:#fff;}
.acc-body{padding:0 24px 20px;font-size:15px;color:var(--tx2);line-height:1.85;}

/* ============ CMS 资讯 ============ */
.news-card{
  display:flex;gap:20px;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:20px;box-shadow:var(--sh-sm);height:100%;position:relative;overflow:hidden;
  transition:transform .24s ease,box-shadow .24s ease;
}
.news-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:0;background:var(--brand-grad);transition:height .28s;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);text-decoration:none;}
.news-card:hover::before{height:3px;}
.news-thumb{flex:0 0 190px;border-radius:var(--r-img);overflow:hidden;aspect-ratio:16/9;}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.news-card:hover .news-thumb img{transform:scale(1.05);}
.news-body{flex:1;min-width:0;display:flex;flex-direction:column;}
.tag{
  display:inline-flex;align-items:center;align-self:flex-start;padding:3px 12px;border-radius:var(--r-pill);
  background:var(--fill);color:var(--brand-a);font-size:12px;font-weight:700;margin-bottom:10px;
}
.news-body h3{
  font-size:17px;font-weight:600;line-height:1.55;margin-bottom:8px;color:var(--tx);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card:hover .news-body h3{color:var(--brand-b);}
.news-body p{
  font-size:14px;color:var(--tx2);line-height:1.75;margin-bottom:14px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:12.5px;color:var(--tx3);border-top:1px solid var(--line);padding-top:12px;
  font-variant-numeric:tabular-nums;
}
.news-meta .read{color:var(--link);font-weight:700;display:inline-flex;align-items:center;gap:5px;}
.news-card:hover .news-meta .read i{transform:translateX(3px);}
.news-meta .read i{transition:transform .2s ease;font-size:11px;}
.empty-state{
  text-align:center;padding:48px 20px;background:#fff;border:1px dashed var(--line);border-radius:var(--r-lg);
}
.empty-state i{font-size:48px;color:rgba(0,195,137,.35);margin-bottom:14px;display:block;}
.empty-state p{font-size:14px;color:var(--tx3);margin-bottom:18px;}

/* ============ 收束 CTA ============ */
.cta-band{
  background:var(--dark);border-radius:var(--r-xl);padding:46px 40px;position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  border:1px solid rgba(255,255,255,.12);
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(0,195,137,.34) 0%,rgba(0,195,137,0) 70%);
}
.cta-band h2{color:#fff;font-size:clamp(20px,2.4vw,28px);font-weight:700;margin-bottom:10px;position:relative;}
.cta-band p{color:rgba(255,255,255,.7);font-size:15px;max-width:560px;position:relative;}
.cta-band .btn{position:relative;z-index:2;}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);margin-top:var(--sec);position:relative;}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:var(--brand-grad);}
.footer-top{padding:64px 0 40px;display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{box-shadow:none;}
.footer-brand b{color:#fff;font-size:16px;font-weight:800;}
.footer-brand span{color:rgba(255,255,255,.5);}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.4px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.72);display:inline-block;transition:color .2s,transform .2s;}
.footer-col a:hover{color:var(--brand-a);transform:translateX(-2px);text-decoration:none;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0;text-align:center;font-size:13px;color:rgba(255,255,255,.5);}
.footer-bottom a{color:rgba(255,255,255,.72);}
.footer-bottom a:hover{color:var(--brand-a);}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  :root{--sec:76px;}
  .hero-inner{gap:36px;}
  .spec-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:991.98px){
  :root{--sec:64px;}
  .nav-menu,.nav-cta{display:none;}
  .nav-toggle{display:flex;}
  .mobile-drawer{display:block;}
  .hero-inner{grid-template-columns:1fr;gap:34px;}
  .hero{padding:40px 0 52px;}
  .hero h1{font-size:clamp(26px,6vw,36px);}
  .value-grid{grid-template-columns:1fr;}
  .value-visual{grid-column:span 1;grid-template-columns:1fr;}
  .dl-group{grid-template-columns:1fr;}
  .footer-top{grid-template-columns:1fr 1fr;gap:28px;}
  .dl-band,.cta-band{padding:30px 26px;}
}
@media (max-width:767.98px){
  .container{padding:0 16px;}
  body{font-size:15.5px;line-height:1.8;}
  .news-card{flex-direction:column;}
  .news-thumb{flex:none;width:100%;}
  .spec-grid{grid-template-columns:1fr;}
  .hero-float{right:8px;}
  .review{flex:0 0 268px;}
  .acc-btn{font-size:15.5px;padding:16px 18px;}
  .acc-body{padding:0 18px 18px;}
}
@media (max-width:575.98px){
  :root{--sec:48px;}
  .nav-wrap{padding:0 12px;top:10px;}
  .nav-pill{padding:8px 14px;}
  .brand-text span{display:none;}
  .hero-actions{flex-direction:column;}
  .hero-actions .btn{width:100%;}
  .footer-top{grid-template-columns:1fr;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .c-intro-btn,.dl-band-actions .btn{width:100%;}
  .shots-ctrl{flex-direction:column;align-items:flex-start;}
}

/* roulang page: article */
:root{
  --brand-a:#00C389;
  --brand-b:#6A4BFF;
  --brand-grad:linear-gradient(135deg,#00C389 0%,#6A4BFF 100%);
  --accent:#FF7A45;
  --dark:#0E1626;
  --bg:#F4F7F5;
  --card:#FFFFFF;
  --fill:#E9F2ED;
  --line:#E3EAE6;
  --text:#172220;
  --muted:#5B6B65;
  --weak:#93A29C;
  --link:#0B8F6B;
  --r-lg:24px;
  --r-md:20px;
  --r-img:16px;
  --r-pill:999px;
  --r-input:14px;
  --sh-sm:0 2px 8px rgba(14,22,38,.06);
  --sh-md:0 10px 24px rgba(14,22,38,.08);
  --sh-lg:0 24px 48px rgba(0,195,137,.16);
  --sec:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
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(--text);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--link);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-b);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;color:var(--text);}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1400px){.container{max-width:1320px;}}

/* ============ 悬浮胶囊导航 ============ */
.nav-wrap{
  position:sticky;
  top:0;
  z-index:1040;
  padding:16px 0 8px;
  transition:padding .24s ease;
}
.nav-pill{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  width:92%;
  max-width:1160px;
  margin:0 auto;
  padding:10px 18px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.78);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--line);
  box-shadow:var(--sh-sm);
  transition:background .24s ease,box-shadow .24s ease,padding .24s ease;
}
.nav-wrap.scrolled .nav-pill{
  background:rgba(255,255,255,.94);
  box-shadow:var(--sh-md);
  padding:8px 18px;
}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:inherit;}
.brand:hover{color:inherit;}
.brand-mark{
  flex:0 0 auto;
  width:38px;height:38px;
  border-radius:12px;
  background:var(--brand-grad);
  display:grid;place-items:center;
  color:#fff;font-size:16px;
  box-shadow:0 6px 16px rgba(0,195,137,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text b{font-size:15px;font-weight:800;letter-spacing:.2px;}
.brand-text span{font-size:11px;color:var(--weak);letter-spacing:.4px;}
.nav-menu{
  display:flex;
  align-items:center;
  gap:4px;
  list-style:none;
  margin:0;padding:0;
}
.nav-menu a{
  display:block;
  padding:8px 15px;
  border-radius:var(--r-pill);
  font-size:15px;
  color:var(--muted);
  text-decoration:none;
  transition:background .2s ease,color .2s ease;
}
.nav-menu a:hover{color:var(--text);background:var(--fill);}
.nav-menu a.active{
  color:var(--brand-a);
  font-weight:600;
  background:rgba(0,195,137,.12);
}
.nav-cta{display:flex;align-items:center;gap:10px;}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:14px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--text);
  font-size:17px;
  cursor:pointer;
  transition:.2s;
}
.nav-toggle:hover{background:var(--fill);color:var(--brand-a);}

/* ============ 按钮 ============ */
.btn-primary-grad{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:13px 26px;
  border:none;
  border-radius:var(--r-pill);
  background:var(--brand-grad);
  color:#fff;
  font-size:15px;
  font-weight:600;
  text-decoration:none;
  box-shadow:var(--sh-md);
  transition:transform .25s ease,box-shadow .25s ease,background-position .25s ease;
}
.btn-primary-grad:hover{
  color:#fff;
  transform:translateY(-2px);
  box-shadow:var(--sh-lg);
  background:linear-gradient(147deg,#00C389 0%,#6A4BFF 100%);
}
.btn-primary-grad:active{transform:translateY(1px);}
.btn-primary-grad:focus-visible{outline:3px solid rgba(106,75,255,.35);outline-offset:2px;}
.btn-sm{padding:10px 20px;font-size:14px;}

.btn-ghost{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:12px 24px;
  border-radius:var(--r-pill);
  background:#fff;
  border:1.5px solid var(--brand-a);
  color:var(--brand-a);
  font-size:15px;
  font-weight:600;
  text-decoration:none;
  transition:.25s ease;
}
.btn-ghost:hover{background:var(--fill);color:var(--brand-a);transform:translateY(-2px);}
.btn-ghost:focus-visible{outline:3px solid rgba(0,195,137,.28);outline-offset:2px;}

.btn-light-solid{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:13px 26px;
  border-radius:var(--r-pill);
  background:#fff;
  color:var(--dark);
  font-weight:600;
  font-size:15px;
  text-decoration:none;
  transition:.25s ease;
}
.btn-light-solid:hover{background:var(--brand-grad);color:#fff;transform:translateY(-2px);}

/* ============ 面包屑 ============ */
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--weak);
  padding:26px 0 0;
}
.crumb a{color:var(--weak);}
.crumb a:hover{color:var(--brand-a);}
.crumb .sep{color:#C7D2CD;}
.crumb .current{color:var(--muted);max-width:46ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ============ 页头光晕 ============ */
.page-glow{
  position:relative;
  padding:26px 0 8px;
  background:
    radial-gradient(520px 260px at 88% 0%,rgba(106,75,255,.16),transparent 62%),
    radial-gradient(520px 260px at 6% 12%,rgba(0,195,137,.18),transparent 62%);
}
.page-glow::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(23,34,32,.035) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(23,34,32,.035) 1px,transparent 1px);
  background-size:34px 34px;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.5),transparent 72%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.5),transparent 72%);
  pointer-events:none;
}
.page-glow .container{position:relative;z-index:1;}

/* ============ 文章主体 ============ */
.article-shell{
  max-width:960px;
  margin:22px auto 0;
  padding:46px 48px 40px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-sm);
}
.article-head{padding-bottom:22px;border-bottom:1px dashed var(--line);}
.cat-pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:30px;
  padding:0 14px;
  border-radius:var(--r-pill);
  background:rgba(0,195,137,.12);
  color:#0B8F6B;
  font-size:13px;
  font-weight:600;
  letter-spacing:.3px;
}
.article-head h1{
  margin:18px 0 16px;
  font-size:clamp(25px,4vw,40px);
  font-weight:800;
  line-height:1.3;
  letter-spacing:.4px;
}
.meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px 14px;
  font-size:13.5px;
  color:var(--muted);
}
.meta span{display:inline-flex;align-items:center;gap:6px;}
.meta i{color:var(--brand-a);font-size:12px;}
.meta .dot{width:4px;height:4px;border-radius:50%;background:#CBD8D2;display:inline-block;}

.article-body{padding-top:26px;font-size:16px;line-height:1.9;color:#233230;}
.article-body p{margin:0 0 1.15em;}
.article-body h2{
  position:relative;
  margin:38px 0 16px;
  padding-left:16px;
  font-size:clamp(21px,2.5vw,28px);
  font-weight:700;
  line-height:1.4;
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;top:.3em;
  width:5px;height:1em;
  border-radius:var(--r-pill);
  background:linear-gradient(180deg,#00C389,#6A4BFF);
}
.article-body h3{
  margin:26px 0 12px;
  font-size:19px;
  font-weight:600;
  line-height:1.5;
}
.article-body ul,.article-body ol{margin:0 0 1.15em;padding-left:1.25em;}
.article-body li{margin-bottom:.5em;}
.article-body blockquote{
  margin:22px 0;
  padding:18px 22px;
  background:var(--fill);
  border-left:4px solid var(--brand-a);
  border-radius:0 16px 16px 0;
  color:#2C3D3A;
  font-size:15.5px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  margin:24px auto;
  border-radius:var(--r-img);
  box-shadow:var(--sh-sm);
}
.article-body figure{margin:24px 0;}
.article-body figcaption{
  margin-top:10px;
  text-align:center;
  font-size:13px;
  color:var(--weak);
}
.article-body table{
  display:block;
  width:100%;
  max-width:100%;
  overflow-x:auto;
  border-collapse:collapse;
  font-size:15px;
  margin:22px 0;
  border-radius:12px;
}
.article-body th,.article-body td{
  padding:12px 16px;
  border:1px solid var(--line);
  text-align:left;
}
.article-body th{background:#F2F8F5;font-weight:700;color:#1F2E2B;}
.article-body tbody tr:nth-child(even){background:#FAFCFB;}
.article-body hr{border:none;border-top:1px dashed var(--line);margin:32px 0;}

.empty-state{
  text-align:center;
  padding:56px 20px;
}
.empty-state i{font-size:48px;color:rgba(0,195,137,.42);}
.empty-state p{margin:18px 0 22px;color:var(--muted);font-size:15.5px;}

.article-tags{
  margin-top:34px;
  padding-top:22px;
  border-top:1px dashed var(--line);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
}
.article-tags .label{font-size:13.5px;color:var(--weak);}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:32px;
  padding:0 15px;
  border-radius:var(--r-pill);
  background:#fff;
  border:1px solid var(--line);
  color:var(--muted);
  font-size:13.5px;
  text-decoration:none;
  transition:.22s ease;
}
.tag:hover{color:var(--brand-a);border-color:rgba(0,195,137,.5);background:var(--fill);transform:translateY(-2px);}

/* ============ 相关推荐 ============ */
.section{padding:var(--sec) 0;}
.section-tight{padding:64px 0 0;}
.sec-head{margin-bottom:28px;}
.sec-head h2{
  position:relative;
  padding-left:16px;
  font-size:clamp(21px,2.6vw,30px);
  font-weight:700;
}
.sec-head h2::before{
  content:"";
  position:absolute;left:0;top:.3em;
  width:5px;height:1em;border-radius:var(--r-pill);
  background:linear-gradient(180deg,#00C389,#6A4BFF);
}
.sec-head p{margin:10px 0 0;color:var(--muted);font-size:15px;}
.rel-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.rel-card{
  position:relative;
  display:flex;
  flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  text-decoration:none;
  color:inherit;
  box-shadow:var(--sh-sm);
  transition:transform .28s ease,box-shadow .28s ease;
}
.rel-card::before{
  content:"";
  position:absolute;
  left:0;right:0;top:0;
  height:0;
  background:var(--brand-grad);
  transition:height .28s ease;
  z-index:2;
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);color:inherit;}
.rel-card:hover::before{height:3px;}
.rel-card:focus-visible{outline:3px solid rgba(106,75,255,.35);outline-offset:3px;}
.rel-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--fill);}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.rel-card:hover .rel-thumb img{transform:scale(1.05);}
.rel-body{padding:20px 22px 22px;}
.rel-body h3{font-size:17px;font-weight:600;line-height:1.55;margin-bottom:10px;}
.rel-body p{font-size:14px;color:var(--muted);line-height:1.75;margin:0 0 14px;}
.rel-foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:var(--weak);
  padding-top:14px;
  border-top:1px dashed var(--line);
}
.rel-foot .more{display:inline-flex;align-items:center;gap:6px;color:var(--brand-a);font-weight:600;}
.rel-card:hover .rel-foot .more i{transform:translateX(3px);}
.rel-foot .more i{transition:transform .22s ease;}

/* ============ 返回入口 ============ */
.back-row{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:34px;
}

/* ============ CTA 收束条 ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:var(--r-lg);
  background:var(--dark);
  padding:48px 44px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:26px;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-90px;top:-90px;
  width:320px;height:320px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(0,195,137,.42),transparent 68%);
  pointer-events:none;
}
.cta-band > *{position:relative;z-index:1;}
.cta-band h2{color:#fff;font-size:clamp(20px,2.4vw,28px);}
.cta-band p{margin:10px 0 0;color:rgba(255,255,255,.72);font-size:15px;max-width:56ch;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:var(--sec);
  background:var(--dark);
  color:rgba(255,255,255,.72);
  padding:64px 0 0;
  position:relative;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(0,195,137,.7),rgba(106,75,255,.7),transparent);
}
.footer-top{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:34px;
  padding-bottom:44px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand b{color:#fff;font-size:15px;}
.footer-brand span{font-size:11.5px;color:rgba(255,255,255,.55);}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);margin:0;}
.footer-col h4{
  color:#fff;
  font-size:14px;
  font-weight:700;
  margin-bottom:16px;
  letter-spacing:.3px;
}
.footer-col ul{list-style:none;margin:0;padding:0;}
.footer-col li{margin-bottom:10px;}
.footer-col ul a{
  font-size:14px;
  color:rgba(255,255,255,.72);
  text-decoration:none;
  transition:.2s ease;
  display:inline-block;
}
.footer-col ul a:hover{color:var(--brand-a);transform:translateX(2px);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0;
  text-align:center;
  font-size:13px;
  color:rgba(255,255,255,.6);
}
.footer-bottom a{color:rgba(255,255,255,.86);}
.footer-bottom a:hover{color:var(--brand-a);}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  :root{--sec:76px;}
  .article-shell{padding:40px 34px 34px;}
}
@media (max-width:991.98px){
  :root{--sec:64px;}
  .nav-pill{position:relative;}
  .nav-menu{
    position:absolute;
    top:calc(100% + 12px);
    left:0;right:0;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:12px;
    background:var(--dark);
    border-radius:24px;
    box-shadow:var(--sh-md);
  }
  .nav-menu.open{display:flex;}
  .nav-menu a{color:#fff;padding:14px 16px;border-radius:16px;font-size:15px;}
  .nav-menu a:hover{background:rgba(255,255,255,.08);color:#fff;}
  .nav-menu a.active{
    background:rgba(0,195,137,.16);
    color:#fff;
    border-left:4px solid var(--brand-a);
    border-radius:12px;
  }
  .nav-cta{display:none;}
  .nav-toggle{display:grid;place-items:center;}
  .rel-grid{grid-template-columns:repeat(2,1fr);}
  .footer-top{grid-template-columns:1fr 1fr;gap:28px;}
  .cta-band{padding:38px 30px;}
}
@media (max-width:767.98px){
  :root{--sec:52px;}
  .container{padding:0 16px;}
  .article-shell{padding:30px 22px 26px;border-radius:20px;}
  .article-head h1{margin:14px 0 12px;}
  .article-body{font-size:15.5px;line-height:1.8;}
  .rel-grid{grid-template-columns:1fr;}
  .crumb .current{max-width:22ch;}
}
@media (max-width:575.98px){
  .brand-text span{display:none;}
  .brand-text b{font-size:13.5px;max-width:150px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;display:block;}
  .footer-top{grid-template-columns:1fr;}
  .cta-band{padding:30px 22px;flex-direction:column;align-items:flex-start;}
  .btn-primary-grad,.btn-ghost,.btn-light-solid{width:100%;justify-content:center;}
  .back-row .btn-ghost{width:100%;}
}

/* roulang page: category1 */
:root{
  --brand-a:#00C389;
  --brand-b:#6A4BFF;
  --brand-grad:linear-gradient(135deg,#00C389 0%,#6A4BFF 100%);
  --accent:#FF7A45;
  --dark:#0E1626;
  --bg:#F4F7F5;
  --card:#FFFFFF;
  --fill2:#E9F2ED;
  --line:#E3EAE6;
  --t1:#172220;
  --t2:#5B6B65;
  --t3:#93A29C;
  --link:#0B8F6B;
  --r-lg:24px;
  --r-md:20px;
  --r-img:16px;
  --r-pill:999px;
  --sh-sm:0 2px 8px rgba(14,22,38,.06);
  --sh-md:0 10px 24px rgba(14,22,38,.08);
  --sh-lg:0 24px 48px rgba(0,195,137,.16);
  --sec-y:88px;
  --bs-primary:#00C389;
  --bs-primary-rgb:0,195,137;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--t1);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.2px;
}
img{max-width:100%;display:block}
a{color:var(--link);text-decoration:none;transition:color .2s ease,background-color .2s ease,box-shadow .2s ease,transform .2s ease}
a:hover{color:var(--brand-b);text-decoration:underline}
h1,h2,h3,h4{margin:0;color:var(--t1);font-weight:700;line-height:1.35}
p{margin:0 0 1em}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:3px solid rgba(106,75,255,.35);outline-offset:2px;border-radius:8px}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1400px){.container{max-width:1320px}}

/* ============ 悬浮胶囊导航 ============ */
.nav-wrap{
  position:sticky;
  top:16px;
  z-index:1030;
  padding:0 16px;
}
.nav-pill{
  width:92%;
  max-width:1160px;
  margin:0 auto;
  display:flex;
  align-items:center;
  gap:18px;
  padding:10px 20px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.78);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);
  box-shadow:var(--sh-sm);
  transition:background-color .24s ease,box-shadow .24s ease,padding .24s ease;
}
.nav-wrap.is-scrolled .nav-pill{
  background:rgba(255,255,255,.92);
  box-shadow:var(--sh-md);
  padding:8px 20px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;text-decoration:none}
.brand:hover{text-decoration:none}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;
  display:flex;align-items:center;justify-content:center;
  border-radius:14px;
  background:var(--brand-grad);
  color:#fff;font-size:18px;
  box-shadow:0 8px 18px rgba(0,195,137,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text b{font-size:15px;font-weight:800;color:var(--t1);letter-spacing:.3px}
.brand-text span{font-size:11px;color:var(--t3);letter-spacing:.4px}
.nav-menu{display:flex;align-items:center;gap:6px;margin:0 auto}
.nav-menu a{
  position:relative;
  display:inline-block;
  padding:8px 14px;
  font-size:14.5px;
  color:var(--t2);
  border-radius:var(--r-pill);
  text-decoration:none;
}
.nav-menu a::after{
  content:"";
  position:absolute;left:50%;bottom:2px;
  width:0;height:4px;border-radius:4px;
  background:var(--brand-grad);
  transform:translateX(-50%);
  transition:width .24s ease;
}
.nav-menu a:hover{color:var(--brand-a);background:var(--fill2);text-decoration:none}
.nav-menu a.active{color:var(--brand-a);font-weight:600}
.nav-menu a.active::after{width:22px}
.nav-cta{flex:0 0 auto;display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border:1px solid var(--line);
  border-radius:14px;
  background:#fff;color:var(--t1);
  font-size:17px;cursor:pointer;
}
.nav-toggle:hover{background:var(--fill2)}

/* ============ 按钮系统 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-pill);font-weight:600;border:1.5px solid transparent;cursor:pointer;text-decoration:none;transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,background-position .3s ease}
.btn:hover{text-decoration:none}
.btn-primary-grad{
  background-image:linear-gradient(135deg,#00C389 0%,#6A4BFF 100%);
  background-size:160% 160%;
  background-position:0% 50%;
  color:#fff;
  padding:16px 30px;
  font-size:16px;
  box-shadow:0 12px 26px rgba(0,195,137,.24);
}
.btn-primary-grad:hover{
  color:#fff;
  transform:translateY(-2px);
  background-position:100% 50%;
  box-shadow:var(--sh-lg);
}
.btn-primary-grad:active{transform:translateY(1px)}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-ghost{
  background:#fff;color:var(--brand-a);
  border-color:var(--brand-a);
  padding:14px 28px;font-size:15.5px;
}
.btn-ghost:hover{background:var(--fill2);color:var(--brand-a);transform:translateY(-2px);box-shadow:var(--sh-sm)}
.btn-ghost:active{transform:translateY(0)}
.btn-dark-zone{
  background:#fff;color:var(--dark);
  padding:14px 28px;font-size:15.5px;
}
.btn-dark-zone:hover{background-image:var(--brand-grad);color:#fff;border-color:transparent;transform:translateY(-2px)}
.btn:disabled,.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}

/* ============ 页面头横幅 ============ */
.page-hero{
  position:relative;
  margin-top:-72px;
  padding:150px 0 72px;
  background:
    radial-gradient(520px 320px at 88% 6%,rgba(106,75,255,.20),transparent 70%),
    radial-gradient(480px 300px at 6% 0%,rgba(0,195,137,.22),transparent 70%),
    linear-gradient(180deg,#F7FBF8 0%,#F4F7F5 100%);
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(14,22,38,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(14,22,38,.035) 1px,transparent 1px);
  background-size:38px 38px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.7),transparent 88%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.7),transparent 88%);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2}
.crumb{font-size:13px;color:var(--t3);margin-bottom:18px}
.crumb a{color:var(--t2);text-decoration:none}
.crumb a:hover{color:var(--brand-a)}
.crumb .sep{margin:0 8px;color:var(--t3)}
.crumb .now{color:var(--t3)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 16px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);
  font-size:13px;color:var(--brand-a);font-weight:600;
  box-shadow:var(--sh-sm);
}
.page-hero h1{
  font-size:clamp(28px,4.2vw,44px);
  font-weight:800;
  line-height:1.25;
  letter-spacing:.5px;
  margin:18px 0 16px;
}
.page-hero .lead{
  font-size:16.5px;
  color:var(--t2);
  max-width:620px;
  margin-bottom:26px;
}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  height:32px;padding:0 14px;
  border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);
  font-size:12.5px;color:var(--t2);
  box-shadow:var(--sh-sm);
}
.chip i{color:var(--brand-a);font-size:13px}
.chip b{font-weight:700;color:var(--t1);font-variant-numeric:tabular-nums}
.chip.accent{background:var(--accent);border-color:var(--accent);color:#fff}
.chip.accent i{color:#fff}
.hero-visual{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-lg);
  border:1px solid rgba(255,255,255,.6);
}
.hero-visual img{width:100%;aspect-ratio:16/11;object-fit:cover}
.hero-float{
  position:absolute;right:16px;bottom:16px;
  background:var(--accent);color:#fff;
  padding:8px 16px;border-radius:var(--r-pill);
  font-size:13px;font-weight:700;
  box-shadow:0 12px 26px rgba(255,122,69,.35);
  font-variant-numeric:tabular-nums;
}

/* ============ 通用板块 ============ */
.section{padding:var(--sec-y) 0}
.section-alt{background:#fff}
.sec-head{margin-bottom:36px}
.sec-head h2{
  position:relative;
  padding-left:16px;
  font-size:clamp(22px,2.8vw,32px);
  font-weight:700;
}
.sec-head h2::before{
  content:"";
  position:absolute;left:0;top:.18em;
  width:5px;height:1.05em;border-radius:4px;
  background:var(--brand-grad);
}
.sec-head p{margin:14px 0 0;color:var(--t2);font-size:15.5px;max-width:760px}
.sec-head .sec-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-a)}
.sec-head .sec-more i{transition:transform .2s ease}
.sec-head .sec-more:hover i{transform:translateX(3px)}

/* 准备要点卡 */
.prep-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.prep-card{
  position:relative;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:26px 24px;
  box-shadow:var(--sh-sm);
  transition:transform .28s ease,box-shadow .28s ease;
  overflow:hidden;
}
.prep-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:0;
  background:var(--brand-grad);
  transition:height .28s ease;
}
.prep-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg)}
.prep-card:hover::before{height:3px}
.prep-icon{
  width:46px;height:46px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  background:var(--fill2);color:var(--brand-a);font-size:19px;
  margin-bottom:16px;
}
.prep-card h3{font-size:18px;font-weight:600;margin-bottom:10px}
.prep-card p{font-size:14.5px;color:var(--t2);margin:0}

/* ============ 时间轴 ============ */
.timeline{position:relative;margin-top:8px}
.timeline::before{
  content:"";
  position:absolute;
  left:23px;top:12px;bottom:12px;
  width:2px;
  background:linear-gradient(180deg,rgba(0,195,137,.5),rgba(106,75,255,.35),rgba(0,195,137,.15));
  border-radius:2px;
}
.tl-item{position:relative;display:flex;gap:24px;padding-bottom:26px}
.tl-item:last-child{padding-bottom:0}
.tl-num{
  position:relative;z-index:2;
  width:48px;height:48px;flex:0 0 48px;
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:#fff;border:2px solid var(--brand-a);
  color:var(--brand-a);font-weight:800;font-size:16px;
  font-variant-numeric:tabular-nums;
  box-shadow:0 8px 18px rgba(0,195,137,.18);
}
.tl-item.is-key .tl-num{background:var(--brand-grad);border-color:transparent;color:#fff;box-shadow:0 10px 22px rgba(106,75,255,.26)}
.tl-card{
  flex:1;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:22px 26px;
  box-shadow:var(--sh-sm);
  transition:transform .28s ease,box-shadow .28s ease;
}
.tl-card:hover{transform:translateY(-3px);box-shadow:var(--sh-md)}
.tl-card h3{font-size:18px;font-weight:600;margin-bottom:10px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.tl-card h3 .mini{
  font-size:11.5px;font-weight:600;color:var(--accent);
  border:1px solid rgba(255,122,69,.45);
  background:rgba(255,122,69,.08);
  padding:1px 10px;border-radius:var(--r-pill);
}
.tl-card p{font-size:14.5px;color:var(--t2);margin:0 0 10px}
.tl-list{display:grid;gap:6px}
.tl-list li{position:relative;padding-left:20px;font-size:14px;color:var(--t2)}
.tl-list li::before{
  content:"";
  position:absolute;left:4px;top:.72em;
  width:6px;height:6px;border-radius:50%;
  background:var(--brand-a);
}

/* ============ 规格网格 ============ */
.spec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.spec-item{
  display:flex;align-items:center;gap:16px;
  background:var(--fill2);
  border:1px solid #DCEAE2;
  border-radius:var(--r-md);
  padding:20px 22px;
  transition:transform .24s ease,box-shadow .24s ease,background-color .24s ease;
}
.spec-item:hover{transform:translateY(-3px);background:#fff;box-shadow:var(--sh-md)}
.spec-ic{
  width:44px;height:44px;flex:0 0 44px;
  border-radius:14px;background:#fff;color:var(--brand-b);
  display:flex;align-items:center;justify-content:center;font-size:17px;
  box-shadow:var(--sh-sm);
}
.spec-item .k{font-size:13px;color:var(--t2)}
.spec-item .v{font-size:15.5px;font-weight:700;color:var(--t1);font-variant-numeric:tabular-nums}

/* ============ 下载区 ============ */
.dl-zone{
  background:var(--dark);
  border-radius:var(--r-lg);
  padding:52px 44px;
  color:#fff;
  position:relative;
  overflow:hidden;
}
.dl-zone::before{
  content:"";
  position:absolute;right:-120px;top:-140px;
  width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(0,195,137,.30),transparent 68%);
}
.dl-zone::after{
  content:"";
  position:absolute;left:-140px;bottom:-170px;
  width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(106,75,255,.30),transparent 68%);
}
.dl-zone > *{position:relative;z-index:2}
.dl-zone h2{
  color:#fff;font-size:clamp(22px,2.6vw,30px);font-weight:700;
  padding-left:16px;position:relative;
}
.dl-zone h2::before{content:"";position:absolute;left:0;top:.18em;width:5px;height:1.05em;border-radius:4px;background:var(--brand-grad)}
.dl-zone p.dl-sub{color:rgba(255,255,255,.72);font-size:15px;margin:14px 0 26px;max-width:720px}
.dl-chips{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.dl-chips .chip{background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.16);color:#fff}
.dl-chips .chip i{color:#7DF0CB}
.dl-chips .chip b{color:#fff}
.dl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.dl-btn{
  display:flex;align-items:center;gap:14px;
  background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.14);
  border-radius:18px;
  padding:18px 22px;
  color:#fff;text-decoration:none;
  border-left:3px solid transparent;
  transition:transform .24s ease,background-color .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.dl-btn:hover{
  text-decoration:none;color:#fff;
  background:rgba(255,255,255,.12);
  border-left-color:var(--brand-a);
  transform:translateY(-3px);
  box-shadow:0 18px 34px rgba(0,0,0,.28);
}
.dl-btn i.plat{font-size:24px;color:#7DF0CB}
.dl-btn .txt{display:flex;flex-direction:column;line-height:1.35}
.dl-btn .txt b{font-size:15.5px;font-weight:700}
.dl-btn .txt span{font-size:11.5px;color:rgba(255,255,255,.62);font-variant-numeric:tabular-nums}

/* ============ 提示卡 ============ */
.notice{
  display:flex;gap:18px;
  background:#FFF6F1;
  border:1px solid rgba(255,122,69,.45);
  border-radius:var(--r-md);
  padding:26px 28px;
  box-shadow:var(--sh-sm);
}
.notice .ni{
  width:46px;height:46px;flex:0 0 46px;border-radius:14px;
  background:rgba(255,122,69,.14);color:var(--accent);
  display:flex;align-items:center;justify-content:center;font-size:19px;
}
.notice h3{font-size:18px;margin-bottom:8px}
.notice p{margin:0;font-size:14.5px;color:var(--t2)}
.notice p + p{margin-top:8px}

/* ============ 内链卡片 ============ */
.link-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.link-card{
  display:block;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  box-shadow:var(--sh-sm);
  color:var(--t1);
  text-decoration:none;
  transition:transform .28s ease,box-shadow .28s ease;
}
.link-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);text-decoration:none;color:var(--t1)}
.link-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.link-card .lc-body{padding:20px 22px 22px}
.link-card .lc-tag{
  display:inline-block;font-size:12px;font-weight:600;
  color:var(--brand-a);background:var(--fill2);
  padding:2px 12px;border-radius:var(--r-pill);margin-bottom:12px;
}
.link-card h3{font-size:17px;font-weight:600;margin-bottom:8px}
.link-card p{font-size:14px;color:var(--t2);margin:0}
.link-card .lc-foot{
  display:flex;align-items:center;justify-content:space-between;
  margin-top:14px;font-size:13px;color:var(--t3);
}
.link-card .lc-foot i{color:var(--brand-a);transition:transform .2s ease}
.link-card:hover .lc-foot i{transform:translateX(3px)}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px}
.faq-item{
  background:#fff;border:1px solid var(--line);
  border-radius:var(--r-img);
  box-shadow:var(--sh-sm);
  overflow:hidden;
}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;background:none;border:0;
  font-size:16.5px;font-weight:600;color:var(--t1);
  text-align:left;cursor:pointer;
}
.faq-q .fi{
  width:30px;height:30px;flex:0 0 30px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--fill2);color:var(--brand-a);font-size:13px;
  transition:transform .3s ease,background-color .3s ease,color .3s ease;
}
.faq-item.open .faq-q .fi{transform:rotate(45deg);background:var(--brand-grad);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s ease}
.faq-a p{padding:0 24px 20px;margin:0;font-size:14.8px;color:var(--t2)}

/* ============ CTA ============ */
.cta-band{
  background:var(--dark);
  border-radius:var(--r-lg);
  padding:52px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  color:#fff;
  position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;left:50%;top:-180px;transform:translateX(-50%);
  width:640px;height:400px;border-radius:50%;
  background:radial-gradient(circle,rgba(0,195,137,.24),transparent 70%);
}
.cta-band > *{position:relative;z-index:2}
.cta-band h2{color:#fff;font-size:clamp(21px,2.4vw,28px);padding-left:16px;position:relative}
.cta-band h2::before{content:"";position:absolute;left:0;top:.18em;width:5px;height:1.05em;border-radius:4px;background:var(--brand-grad)}
.cta-band p{color:rgba(255,255,255,.72);font-size:15px;margin:14px 0 0;max-width:620px}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:88px;
  background:var(--dark);
  color:rgba(255,255,255,.72);
  padding-top:64px;
  border-top:1px solid transparent;
  background-image:linear-gradient(var(--dark),var(--dark)),linear-gradient(135deg,#00C389,#6A4BFF);
  background-origin:border-box;
  background-clip:padding-box,border-box;
}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);box-shadow:none}
.footer-brand b{color:#fff;font-size:15.5px}
.footer-brand span{font-size:12px;color:rgba(255,255,255,.55)}
.footer-col h4{color:#fff;font-size:14px;font-weight:700;margin-bottom:16px;letter-spacing:.4px}
.footer-col p{font-size:14px;color:rgba(255,255,255,.68);margin:0;max-width:360px}
.footer-col ul{display:grid;gap:10px}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,.72);text-decoration:none;transition:color .2s ease,transform .2s ease;display:inline-block}
.footer-col ul a:hover{color:var(--brand-a);transform:translateX(2px);text-decoration:none}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0;text-align:center;font-size:13px;color:rgba(255,255,255,.6);
}
.footer-bottom a{color:rgba(255,255,255,.82)}
.footer-bottom a:hover{color:var(--brand-a)}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .hero-grid{gap:32px}
  .prep-grid,.spec-grid,.dl-grid,.link-cards{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:991.98px){
  :root{--sec-y:64px}
  .nav-menu{
    position:absolute;left:0;right:0;top:calc(100% + 10px);
    flex-direction:column;align-items:stretch;
    background:var(--dark);
    border-radius:24px;
    padding:14px;
    gap:2px;
    box-shadow:0 24px 48px rgba(14,22,38,.32);
    display:none;
  }
  .nav-pill.open .nav-menu{display:flex}
  .nav-menu a{color:#fff;padding:14px 18px;font-size:15px;border-radius:14px}
  .nav-menu a:hover{background:rgba(255,255,255,.08);color:#7DF0CB}
  .nav-menu a.active{color:#7DF0CB}
  .nav-menu a.active::after{left:0;bottom:50%;transform:translateY(50%);width:4px;height:22px;border-radius:4px}
  .nav-pill{position:relative;justify-content:space-between}
  .nav-cta .btn{display:none}
  .nav-toggle{display:flex;align-items:center;justify-content:center}
  .page-hero{padding:130px 0 56px}
  .hero-grid{grid-template-columns:1fr}
  .hero-visual img{aspect-ratio:16/9}
  .dl-zone,.cta-band{padding:40px 28px}
  .cta-band{flex-direction:column;align-items:flex-start}
  .footer-top{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767.98px){
  .prep-grid,.spec-grid,.dl-grid,.link-cards{grid-template-columns:1fr}
  .brand-text b{font-size:13.5px}
  .timeline::before{left:19px}
  .tl-num{width:40px;height:40px;flex:0 0 40px;font-size:14px}
  .tl-item{gap:16px}
  .tl-card{padding:20px}
  .notice{flex-direction:column;gap:14px;padding:22px}
}
@media (max-width:575.98px){
  :root{--sec-y:48px}
  .container{padding:0 16px}
  body{font-size:15.5px;line-height:1.8}
  .nav-pill{width:100%;padding:8px 14px}
  .brand-mark{width:36px;height:36px;flex:0 0 36px;font-size:16px}
  .dl-grid{grid-template-columns:1fr}
  .dl-btn{width:100%}
  .btn{width:100%}
  .btn-sm{width:auto}
  .footer-top{grid-template-columns:1fr}
  .page-hero h1{font-size:26px}
  .hero-badges .chip{height:30px;font-size:12px}
}

/* roulang page: category2 */
:root{
  --brand-a:#00C389;
  --brand-b:#6A4BFF;
  --grad:linear-gradient(135deg,#00C389 0%,#6A4BFF 100%);
  --grad-soft:linear-gradient(135deg,rgba(0,195,137,.14) 0%,rgba(106,75,255,.14) 100%);
  --accent:#FF7A45;
  --dark:#0E1626;
  --bg:#F4F7F5;
  --surface:#FFFFFF;
  --fill:#E9F2ED;
  --line:#E3EAE6;
  --text:#172220;
  --muted:#5B6B65;
  --weak:#93A29C;
  --link:#0B8F6B;
  --r-lg:24px;
  --r-md:20px;
  --r-img:16px;
  --r-pill:999px;
  --r-input:14px;
  --sh-sm:0 2px 8px rgba(14,22,38,.06);
  --sh-md:0 10px 24px rgba(14,22,38,.08);
  --sh-lg:0 24px 48px rgba(0,195,137,.16);
  --sec-pad:88px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
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(--text);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;}
a{color:var(--link);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-b);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;}
h1{font-size:clamp(28px,4.4vw,48px);font-weight:800;line-height:1.25;letter-spacing:.5px;}
h2{font-size:clamp(22px,2.8vw,32px);position:relative;padding-left:18px;}
h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:6px;border-radius:6px;background:var(--grad);
}
h3{font-size:19px;font-weight:600;}
p{margin:0 0 1.15em;}
p:last-child{margin-bottom:0;}

.container{
  width:100%;
  max-width:1320px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
.section{padding:var(--sec-pad) 0;}
.section-tight{padding:56px 0;}
.section-head{margin-bottom:28px;}
.section-head p{color:var(--muted);margin-top:12px;max-width:760px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand-a);
  background:var(--fill);border-radius:var(--r-pill);
  padding:6px 14px;margin-bottom:16px;
}

/* ---------- 按钮 ---------- */
.btn{font-weight:600;border-radius:var(--r-pill);transition:transform .24s ease,box-shadow .24s ease,background .24s ease,color .24s ease;border:1px solid transparent;}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(106,75,255,.35);}
.btn-primary-grad{
  background-image:var(--grad);
  background-size:160% 160%;
  background-position:0% 50%;
  color:#fff;
  padding:13px 26px;
  font-size:15px;
  box-shadow:var(--sh-sm);
}
.btn-primary-grad:hover,.btn-primary-grad:focus{
  color:#fff;
  transform:translateY(-2px);
  box-shadow:var(--sh-lg);
  background-position:30% 50%;
}
.btn-primary-grad:active{transform:translateY(1px);box-shadow:var(--sh-sm);}
.btn-ghost{
  background:#fff;color:var(--brand-a);border:1.5px solid var(--brand-a);
  padding:12px 24px;font-size:15px;
}
.btn-ghost:hover{background:var(--fill);color:var(--brand-a);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-dark-solid{
  background:var(--dark);color:#fff;padding:12px 24px;font-size:15px;
}
.btn-dark-solid:hover{background:#fff;color:var(--dark);transform:translateY(-2px);}
.btn-light-solid{
  background:#fff;color:var(--dark);padding:13px 26px;font-size:15px;font-weight:700;
}
.btn-light-solid:hover{background-image:var(--grad);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-lg);}
.btn-sm{padding:9px 18px;font-size:14px;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;}
.link-arrow i{transition:transform .24s ease;}
.link-arrow:hover i{transform:translateX(3px);}

/* ---------- 导航 ---------- */
.nav-wrap{
  position:sticky;top:16px;z-index:1030;
  padding:0 16px;
  pointer-events:none;
}
.nav-pill{
  pointer-events:auto;
  width:100%;max-width:1160px;margin:0 auto;
  display:flex;align-items:center;gap:18px;
  padding:10px 20px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.78);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid rgba(227,234,230,.9);
  box-shadow:var(--sh-sm);
  transition:background .24s ease,box-shadow .24s ease,padding .24s ease;
}
.nav-wrap.scrolled .nav-pill{
  background:rgba(255,255,255,.94);
  box-shadow:var(--sh-md);
  padding:7px 20px;
}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:14px;
  background-image:var(--grad);
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:18px;box-shadow:0 8px 18px rgba(0,195,137,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text b{font-size:16px;color:var(--text);font-weight:800;letter-spacing:.2px;}
.brand-text span{font-size:12px;color:var(--weak);}
.nav-menu{
  display:flex;align-items:center;gap:4px;list-style:none;
  margin:0 auto;padding:0;
}
.nav-menu a{
  position:relative;display:block;
  padding:8px 14px;border-radius:var(--r-pill);
  font-size:15px;font-weight:500;color:var(--text);
}
.nav-menu a::after{
  content:"";position:absolute;left:50%;bottom:2px;
  width:0;height:4px;border-radius:4px;background-image:var(--grad);
  transform:translateX(-50%);transition:width .24s ease;
}
.nav-menu a:hover{color:var(--brand-a);text-decoration:none;}
.nav-menu a.active{color:var(--brand-a);font-weight:700;}
.nav-menu a.active::after{width:22px;}
.nav-menu-cta{display:none;}
.nav-cta{flex-shrink:0;}
.nav-toggle{
  display:none;width:44px;height:44px;flex:0 0 44px;
  border-radius:14px;border:1px solid var(--line);background:#fff;
  color:var(--text);font-size:18px;align-items:center;justify-content:center;
  transition:background .2s ease,color .2s ease;
}
.nav-toggle:hover{background:var(--fill);color:var(--brand-a);}
.nav-toggle:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(106,75,255,.35);}

/* ---------- 内页横幅 ---------- */
.page-hero{
  position:relative;overflow:hidden;
  margin-top:-84px;
  padding:150px 0 72px;
  background:
    radial-gradient(560px 320px at 88% 12%,rgba(0,195,137,.22),transparent 70%),
    radial-gradient(520px 320px at 6% 88%,rgba(106,75,255,.18),transparent 72%),
    var(--bg);
}
.page-hero::after{
  content:"";position:absolute;right:-60px;bottom:-90px;width:420px;height:420px;
  background-image:radial-gradient(rgba(14,22,38,.07) 1px,transparent 1px);
  background-size:18px 18px;opacity:.6;pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;}
.crumb{font-size:13px;color:var(--weak);margin-bottom:20px;}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--brand-a);}
.crumb span.sep{margin:0 8px;color:var(--weak);}
.crumb .current{color:var(--weak);}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;}
.hero-lead{font-size:clamp(16px,1.6vw,18px);color:var(--muted);margin-top:20px;max-width:560px;}
.badge-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.badge{
  display:inline-flex;align-items:center;gap:9px;
  height:34px;padding:0 15px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);box-shadow:var(--sh-sm);
  font-size:13px;color:var(--muted);
}
.badge i{color:var(--brand-a);font-size:14px;}
.badge b{color:var(--text);font-weight:700;}
.badge.accent{background:var(--accent);border-color:var(--accent);color:#fff;}
.badge.accent i{color:#fff;}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:var(--r-lg);box-shadow:var(--sh-lg);
  transition:transform .3s ease;
}
.hero-visual img:hover{transform:translateY(-6px);}
.hero-visual .tag-float{
  position:absolute;left:-14px;bottom:22px;
  background:var(--accent);color:#fff;font-size:13px;font-weight:700;
  padding:9px 16px;border-radius:var(--r-pill);
  box-shadow:0 12px 26px rgba(255,122,69,.32);
}

/* ---------- 图文交替区块 ---------- */
.feature-block{
  display:grid;grid-template-columns:1.02fr .98fr;gap:52px;align-items:center;
  padding:40px 0;
}
.feature-block.reverse .feature-media{order:2;}
.feature-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-md);box-shadow:var(--sh-md);
  border:1px solid var(--line);
}
.feature-body h2{margin-bottom:16px;}
.feature-body p{color:var(--muted);}
.point-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:30px;
}
.point-card{
  position:relative;overflow:hidden;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px 20px;box-shadow:var(--sh-sm);
  transition:transform .28s ease,box-shadow .28s ease;
}
.point-card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:0;
  background-image:var(--grad);transition:height .28s ease;
}
.point-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);}
.point-card:hover::before{height:3px;}
.point-card .p-icon{
  width:38px;height:38px;border-radius:12px;background:var(--fill);
  color:var(--brand-a);display:flex;align-items:center;justify-content:center;
  font-size:15px;margin-bottom:14px;
}
.point-card h3{font-size:16px;margin-bottom:8px;}
.point-card p{font-size:14px;color:var(--muted);line-height:1.8;margin:0;}

/* ---------- 安全提示卡 ---------- */
.alert-card{
  background:#FFF8F4;
  border:1.5px solid var(--accent);
  border-radius:var(--r-md);
  padding:30px 32px;
  box-shadow:0 14px 30px rgba(255,122,69,.12);
}
.alert-card .alert-head{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.alert-card .alert-head i{
  width:42px;height:42px;border-radius:14px;background:var(--accent);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:17px;
}
.alert-card h2{padding-left:0;font-size:22px;}
.alert-card h2::before{display:none;}
.alert-list{list-style:none;margin:0;padding:0;display:grid;gap:12px;}
.alert-list li{
  display:flex;gap:12px;align-items:flex-start;
  background:#fff;border-radius:14px;padding:14px 18px;
  border:1px solid rgba(255,122,69,.28);font-size:15px;color:var(--muted);
}
.alert-list li i{color:var(--accent);margin-top:6px;font-size:13px;}
.alert-list li b{color:var(--text);}

/* ---------- FAQ 手风琴 ---------- */
.faq-list{display:grid;gap:12px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-img);
  box-shadow:var(--sh-sm);overflow:hidden;transition:box-shadow .24s ease;
}
.faq-item:hover{box-shadow:var(--sh-md);}
.faq-item button{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  background:none;border:0;text-align:left;
  padding:20px 24px;font-size:16.5px;font-weight:600;color:var(--text);
}
.faq-item button:focus-visible{outline:none;box-shadow:inset 0 0 0 3px rgba(106,75,255,.28);}
.faq-item .faq-icon{
  width:30px;height:30px;flex:0 0 30px;border-radius:50%;
  background:var(--fill);color:var(--brand-a);
  display:flex;align-items:center;justify-content:center;font-size:13px;
  transition:transform .3s ease,background .3s ease,color .3s ease;
}
.faq-item button[aria-expanded="true"] .faq-icon{
  transform:rotate(45deg);background-image:var(--grad);color:#fff;
}
.faq-body{padding:0 24px 22px;color:var(--muted);font-size:15px;}
.faq-body p{margin-bottom:.8em;}

/* ---------- 返回入口 ---------- */
.back-links{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.back-card{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px;box-shadow:var(--sh-sm);color:var(--text);
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.back-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);border-color:rgba(0,195,137,.4);color:var(--text);text-decoration:none;}
.back-card i{color:var(--brand-a);font-size:18px;margin-bottom:12px;display:block;}
.back-card b{display:block;font-size:16px;margin-bottom:6px;}
.back-card span{font-size:13.5px;color:var(--muted);line-height:1.7;}

/* ---------- 下载按钮组 ---------- */
.download-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:32px;box-shadow:var(--sh-md);
}
.dl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:22px;}
.dl-btn{
  display:flex;align-items:center;gap:14px;
  background:#fff;border:1px solid var(--line);border-radius:18px;
  padding:16px 20px;color:var(--text);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease,box-shadow .24s ease;
  box-shadow:var(--sh-sm);
}
.dl-btn:hover{transform:translateY(-3px);box-shadow:var(--sh-lg);border-color:rgba(0,195,137,.45);color:var(--text);text-decoration:none;}
.dl-btn i{font-size:22px;color:var(--brand-a);}
.dl-btn .dl-text{display:flex;flex-direction:column;line-height:1.4;}
.dl-btn .dl-text b{font-size:15.5px;}
.dl-btn .dl-text span{font-size:12px;color:var(--weak);}
.download-panel.on-dark{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.14);box-shadow:none;}
.download-panel.on-dark .dl-btn{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.16);color:#fff;}
.download-panel.on-dark .dl-btn:hover{background:#fff;color:var(--dark);}
.download-panel.on-dark .dl-btn i{color:var(--brand-a);}
.download-panel.on-dark .dl-btn .dl-text span{color:rgba(255,255,255,.66);}

/* ---------- 收束 CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--dark);border-radius:28px;
  padding:52px;color:#fff;
  box-shadow:0 30px 60px rgba(14,22,38,.28);
}
.cta-band::before{
  content:"";position:absolute;right:-90px;top:-90px;width:340px;height:340px;border-radius:50%;
  background-image:var(--grad);opacity:.28;filter:blur(30px);
}
.cta-band .cta-inner{position:relative;z-index:2;}
.cta-band h2{color:#fff;padding-left:0;}
.cta-band h2::before{display:none;}
.cta-band p{color:rgba(255,255,255,.74);margin-top:14px;max-width:660px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:96px;
  background:var(--dark);color:rgba(255,255,255,.72);
  padding-top:64px;position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background-image:var(--grad);opacity:.7;
}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.footer-col h4{font-size:14px;color:#fff;font-weight:700;margin-bottom:18px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-brand b{color:#fff;font-size:16px;}
.footer-brand span{font-size:12.5px;color:rgba(255,255,255,.6);}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);margin:0;}
.footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:11px;}
.footer-col ul a{
  font-size:14px;color:rgba(255,255,255,.72);display:inline-block;
  transition:color .2s ease,transform .2s ease;
}
.footer-col ul a:hover{color:var(--brand-a);transform:translateX(2px);text-decoration:none;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 28px;text-align:center;font-size:13px;color:rgba(255,255,255,.6);
}
.footer-bottom a{color:rgba(255,255,255,.82);}
.footer-bottom a:hover{color:var(--brand-a);}

/* ---------- 响应式 ---------- */
@media (min-width:1400px){
  .container{max-width:1320px;}
}
@media (max-width:1199.98px){
  .container{max-width:1200px;}
  .hero-grid{gap:40px;}
}
@media (max-width:991.98px){
  :root{--sec-pad:64px;}
  .nav-wrap{padding:0 12px;top:12px;}
  .nav-pill{width:100%;padding:9px 14px;justify-content:space-between;}
  .nav-wrap.scrolled .nav-pill{padding:7px 14px;}
  .brand-text span{display:none;}
  .nav-cta{display:none;}
  .nav-toggle{display:flex;}
  .nav-menu{
    position:fixed;left:0;right:0;top:0;bottom:0;z-index:1029;
    flex-direction:column;align-items:stretch;gap:0;
    background:var(--dark);
    padding:104px 28px 40px;
    margin:0;overflow-y:auto;
    transform:translateY(-102%);
    transition:transform .34s cubic-bezier(.4,0,.2,1);
  }
  .nav-menu.open{transform:translateY(0);}
  .nav-menu li{border-bottom:1px solid rgba(255,255,255,.1);}
  .nav-menu a{
    color:#fff;font-size:17px;padding:16px 0 16px 14px;border-radius:0;
  }
  .nav-menu a::after{display:none;}
  .nav-menu a::before{
    content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
    width:4px;height:0;border-radius:4px;background-image:var(--grad);
    transition:height .24s ease;
  }
  .nav-menu a.active{color:var(--brand-a);}
  .nav-menu a.active::before{height:24px;}
  .nav-menu-cta{display:block;border-bottom:0 !important;margin-top:22px;}
  .nav-menu-cta a{
    display:inline-block;padding:13px 28px;border-radius:var(--r-pill);
    background-image:var(--grad);color:#fff;font-weight:700;
  }
  .nav-menu-cta a::before{display:none;}
  .page-hero{margin-top:-80px;padding:132px 0 56px;}
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .hero-lead{max-width:100%;}
  .feature-block{grid-template-columns:1fr;gap:28px;padding:28px 0;}
  .feature-block.reverse .feature-media{order:0;}
  .point-grid{grid-template-columns:1fr 1fr;}
  .back-links{grid-template-columns:1fr 1fr;}
  .dl-grid{grid-template-columns:1fr;}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{padding:40px 32px;}
}
@media (max-width:767.98px){
  :root{--sec-pad:48px;}
  body{font-size:15.5px;line-height:1.8;}
  .container{padding-left:16px;padding-right:16px;}
  h3{font-size:17px;}
  .point-grid{grid-template-columns:1fr;}
  .cta-actions{flex-direction:column;align-items:stretch;}
  .cta-actions .btn{width:100%;text-align:center;}
  .alert-card{padding:24px 20px;}
  .faq-item button{padding:17px 18px;font-size:15.5px;}
  .faq-body{padding:0 18px 18px;}
  .download-panel{padding:22px;}
}
@media (max-width:575.98px){
  .back-links{grid-template-columns:1fr;}
  .footer-top{grid-template-columns:1fr;}
  .badge-row{gap:9px;}
  .badge{font-size:12.5px;padding:0 13px;}
  .hero-visual .tag-float{left:0;}
  .cta-band{padding:32px 22px;border-radius:22px;}
  .footer-bottom{font-size:12.5px;padding:20px 0 26px;}
}

/* roulang page: category3 */
:root{
  --brand-a:#00C389;
  --brand-b:#6A4BFF;
  --accent:#FF7A45;
  --dark:#0E1626;
  --bg:#F4F7F5;
  --card:#FFFFFF;
  --fill:#E9F2ED;
  --line:#E3EAE6;
  --t1:#172220;
  --t2:#5B6B65;
  --t3:#93A29C;
  --link:#0B8F6B;
  --r-lg:24px;
  --r-md:20px;
  --r-img:16px;
  --r-pill:999px;
  --r-input:14px;
  --sh-sm:0 2px 8px rgba(14,22,38,.06);
  --sh-md:0 10px 24px rgba(14,22,38,.08);
  --sh-lg:0 24px 48px rgba(0,195,137,.16);
  --grad:linear-gradient(135deg,#00C389 0%,#6A4BFF 100%);
  --sec:88px;
  --bs-primary:#00C389;
  --bs-body-bg:#F4F7F5;
  --bs-body-color:#172220;
  --bs-border-color:#E3EAE6;
  --bs-link-color:#0B8F6B;
  --bs-link-hover-color:#6A4BFF;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--t1);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--link);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-b);text-decoration:underline;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--t1);}
p{margin:0;}
:focus-visible{outline:3px solid rgba(106,75,255,.35);outline-offset:2px;border-radius:8px;}

.shell{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (min-width:1400px){.shell{max-width:1320px;}}

/* ---------- 悬浮胶囊导航 ---------- */
.nav-wrap{
  position:sticky;
  top:16px;
  z-index:1030;
  padding:0 12px;
}
.nav-pill{
  display:flex;
  align-items:center;
  gap:18px;
  width:92%;
  max-width:1160px;
  margin:0 auto;
  padding:10px 20px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.78);
  -webkit-backdrop-filter:blur(14px) saturate(150%);
  backdrop-filter:blur(14px) saturate(150%);
  border:1px solid var(--line);
  box-shadow:var(--sh-sm);
  transition:background .24s ease,box-shadow .24s ease,padding .24s ease;
  position:relative;
}
.nav-wrap.scrolled .nav-pill{
  background:rgba(255,255,255,.94);
  box-shadow:var(--sh-md);
  padding:8px 18px;
}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  background-image:var(--grad);
  color:#fff;display:grid;place-items:center;font-size:16px;
  box-shadow:0 6px 16px rgba(0,195,137,.32);
  flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text b{font-size:15px;color:var(--t1);font-weight:700;letter-spacing:.2px;}
.brand-text span{font-size:11.5px;color:var(--t3);letter-spacing:.3px;}
.nav-menu{display:flex;align-items:center;gap:4px;margin:0 auto;}
.nav-menu a{
  display:block;position:relative;
  padding:8px 14px;border-radius:var(--r-pill);
  font-size:14.5px;color:var(--t2);text-decoration:none;
  transition:color .2s ease,background .2s ease;
}
.nav-menu a:hover{color:var(--brand-a);background:var(--fill);text-decoration:none;}
.nav-menu a.active{color:var(--brand-a);font-weight:600;}
.nav-menu a.active::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);
  bottom:1px;width:20px;height:4px;border-radius:var(--r-pill);
  background-image:var(--grad);
}
.nav-cta{flex:0 0 auto;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:50%;
  border:1px solid var(--line);background:#fff;color:var(--t1);
  font-size:16px;cursor:pointer;transition:.2s;
}
.nav-toggle:hover{color:var(--brand-a);border-color:var(--brand-a);}

/* ---------- 按钮体系 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-pill);
  font-weight:600;text-decoration:none;cursor:pointer;border:none;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;}
.btn:hover{text-decoration:none;}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-lg{padding:15px 30px;font-size:16.5px;}
.btn-primary-grad{
  background-image:linear-gradient(135deg,#00C389 0%,#6A4BFF 100%);
  background-size:160% 160%;background-position:0 0;
  color:#fff;box-shadow:0 10px 22px rgba(0,195,137,.26);
}
.btn-primary-grad:hover{color:#fff;transform:translateY(-2px);box-shadow:var(--sh-lg);background-position:100% 0;}
.btn-primary-grad:active{transform:translateY(1px);}
.btn-ghost{
  background:#fff;color:var(--link);border:1.5px solid var(--brand-a);
}
.btn-ghost:hover{color:var(--link);background:var(--fill);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-darkline{
  background:#fff;color:var(--dark);border:1.5px solid var(--line);
}
.btn-darkline:hover{color:var(--brand-b);border-color:var(--brand-b);transform:translateY(-2px);}
.btn-inverse{background:#fff;color:var(--dark);}
.btn-inverse:hover{background-image:var(--grad);color:#fff;transform:translateY(-2px);}

.arrow-link{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--link);}
.arrow-link i{transition:transform .22s ease;}
.arrow-link:hover i{transform:translateX(3px);}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sec) 0;}
.section-tight{padding:64px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px;}
.section-head h2,.h2-bar{
  position:relative;padding-left:16px;
  font-size:clamp(22px,2.8vw,32px);font-weight:700;line-height:1.35;
}
.section-head h2::before,.h2-bar::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:4px;
  background-image:var(--grad);
}
.section-sub{font-size:15px;color:var(--t2);max-width:720px;margin-top:10px;}

/* ---------- 内页横幅 ---------- */
.page-hero{
  position:relative;overflow:hidden;margin-top:22px;
  padding:64px 0 56px;
  background:linear-gradient(180deg,#EAF6F0 0%,#F4F7F5 100%);
}
.page-hero::before{
  content:"";position:absolute;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(0,195,137,.30),rgba(0,195,137,0) 70%);
  top:-160px;right:-80px;filter:blur(40px);
}
.page-hero::after{
  content:"";position:absolute;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(106,75,255,.24),rgba(106,75,255,0) 70%);
  bottom:-180px;left:-90px;filter:blur(46px);
}
.page-hero .shell{position:relative;z-index:2;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--t3);margin-bottom:16px;flex-wrap:wrap;}
.crumb a{color:var(--t2);}
.crumb a:hover{color:var(--brand-a);}
.crumb span.sep{color:var(--t3);}
.crumb .now{color:var(--t3);}
.page-hero h1{
  font-size:clamp(28px,4.4vw,44px);font-weight:800;line-height:1.25;letter-spacing:.5px;
  max-width:900px;
}
.page-hero .lede{margin-top:16px;font-size:16.5px;color:var(--t2);max-width:760px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}

.pill-badge{
  display:inline-flex;align-items:center;gap:8px;
  height:32px;padding:0 14px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);box-shadow:var(--sh-sm);
  font-size:12.5px;color:var(--t2);
}
.pill-badge i{font-size:13px;color:var(--brand-a);}
.pill-badge b{font-size:14px;color:var(--t1);}
.pill-badge.accent{background:var(--accent);border-color:var(--accent);color:#fff;}
.pill-badge.accent i,.pill-badge.accent b{color:#fff;}

/* ---------- 标签筛选条 ---------- */
.tagbar{
  display:flex;flex-wrap:wrap;gap:10px;
  padding:8px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);box-shadow:var(--sh-sm);
  margin-bottom:34px;
}
.tag-chip{
  border:1px solid transparent;background:transparent;color:var(--t2);
  padding:9px 20px;border-radius:var(--r-pill);font-size:14.5px;cursor:pointer;
  transition:.22s ease;
}
.tag-chip:hover{color:var(--brand-a);background:var(--fill);}
.tag-chip.active{
  background-image:var(--grad);color:#fff;font-weight:600;
  box-shadow:0 8px 18px rgba(0,195,137,.24);
}

/* ---------- 卡片 ---------- */
.card-soft{
  position:relative;overflow:hidden;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-sm);padding:26px;
  transition:transform .28s ease,box-shadow .28s ease;
}
.card-soft::before{
  content:"";position:absolute;left:0;right:0;top:0;height:0;
  background-image:var(--grad);transition:height .28s ease;
}
.card-soft:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);}
.card-soft:hover::before{height:3px;}
.card-soft h3{font-size:18px;font-weight:600;margin-bottom:10px;}
.card-soft p{font-size:14.5px;color:var(--t2);}

.icon-badge{
  width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
  background:var(--fill);color:var(--brand-a);font-size:17px;margin-bottom:16px;
}
.icon-badge.purple{background:rgba(106,75,255,.12);color:var(--brand-b);}
.icon-badge.orange{background:rgba(255,122,69,.14);color:var(--accent);}

.feature-visual{
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-md);
  border:1px solid var(--line);background:#fff;
}
.feature-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;}

.bullet-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14.5px;color:var(--t2);margin-top:12px;
}
.bullet-list i{color:var(--brand-a);margin-top:5px;font-size:13px;}

.tile-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}

/* ---------- 场景错落卡 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.scene-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-sm);padding:30px;transition:transform .28s ease,box-shadow .28s ease;
}
.scene-card:nth-child(odd){transform:translateY(0);}
.scene-card:nth-child(even){background:linear-gradient(160deg,#FFFFFF 0%,#F1FAF6 100%);}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);}
.scene-card h3{font-size:19px;font-weight:600;margin-bottom:10px;}
.scene-card p{font-size:14.5px;color:var(--t2);}
.scene-tag{
  display:inline-block;font-size:12px;color:var(--brand-b);
  background:rgba(106,75,255,.10);border-radius:var(--r-pill);
  padding:3px 12px;margin-bottom:14px;
}

/* ---------- 流程时间轴 ---------- */
.steps{position:relative;padding-left:0;}
.step{
  display:flex;gap:20px;align-items:flex-start;position:relative;padding-bottom:26px;
}
.step:last-child{padding-bottom:0;}
.step::after{
  content:"";position:absolute;left:23px;top:52px;bottom:0;width:2px;
  background:linear-gradient(180deg,rgba(0,195,137,.45),rgba(106,75,255,.10));
}
.step:last-child::after{display:none;}
.step-num{
  flex:0 0 auto;width:48px;height:48px;border-radius:50%;
  display:grid;place-items:center;font-weight:700;font-size:17px;color:#fff;
  background-image:var(--grad);box-shadow:0 10px 20px rgba(0,195,137,.24);
  position:relative;z-index:2;
}
.step-body{
  flex:1;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px 26px;box-shadow:var(--sh-sm);transition:transform .25s ease,box-shadow .25s ease;
}
.step-body:hover{transform:translateY(-3px);box-shadow:var(--sh-md);}
.step-body h3{font-size:17.5px;font-weight:600;margin-bottom:8px;}
.step-body p{font-size:14.5px;color:var(--t2);}

/* ---------- FAQ 手风琴 ---------- */
.acc-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-img);
  margin-bottom:12px;box-shadow:var(--sh-sm);overflow:hidden;
  transition:box-shadow .25s ease,border-color .25s ease;
}
.acc-item:hover{box-shadow:var(--sh-md);border-color:#D5E4DC;}
.acc-head{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;background:transparent;border:none;text-align:left;cursor:pointer;
  font-size:16.5px;font-weight:600;color:var(--t1);line-height:1.6;
}
.acc-head:hover{color:var(--brand-a);}
.acc-icon{
  flex:0 0 auto;width:30px;height:30px;border-radius:50%;
  display:grid;place-items:center;border:1px solid var(--line);
  color:var(--brand-a);font-size:13px;
  transition:transform .3s ease,background .3s ease,color .3s ease,border-color .3s ease;
}
.acc-head[aria-expanded="true"] .acc-icon{
  transform:rotate(45deg);background-image:var(--grad);color:#fff;border-color:transparent;
}
.acc-head[aria-expanded="true"]{color:var(--brand-a);}
.acc-body{padding:0 22px 20px;font-size:15px;color:var(--t2);line-height:1.85;}
.acc-body strong{color:var(--t1);}

/* ---------- 解决引导卡 ---------- */
.help-card{
  border-radius:var(--r-lg);border:1.5px solid var(--accent);
  background:linear-gradient(150deg,#FFF6F1 0%,#FFFFFF 60%);
  padding:34px;box-shadow:var(--sh-md);
}
.help-card h2{font-size:clamp(20px,2.4vw,26px);font-weight:700;padding-left:16px;position:relative;}
.help-card h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:4px;
  background:var(--accent);
}
.help-card p{margin-top:12px;font-size:15px;color:var(--t2);}
.help-meta{display:flex;flex-wrap:wrap;gap:18px;margin-top:18px;font-size:14px;color:var(--t2);}
.help-meta i{color:var(--accent);margin-right:6px;}

/* ---------- 平台下载按钮 ---------- */
.platform-row{display:flex;flex-wrap:wrap;gap:16px;margin-top:26px;}
.btn-platform{
  display:flex;align-items:center;gap:12px;
  min-width:190px;padding:14px 22px;border-radius:18px;
  background:#fff;border:1px solid var(--line);box-shadow:var(--sh-sm);
  text-decoration:none;transition:.25s ease;position:relative;overflow:hidden;
}
.btn-platform::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:0;
  background-image:var(--grad);transition:width .25s ease;
}
.btn-platform:hover{transform:translateY(-3px);box-shadow:var(--sh-md);text-decoration:none;}
.btn-platform:hover::before{width:4px;}
.btn-platform i{font-size:22px;color:var(--brand-a);}
.btn-platform .pf-text{display:flex;flex-direction:column;line-height:1.3;}
.btn-platform .pf-text b{font-size:15px;color:var(--t1);}
.btn-platform .pf-text span{font-size:11.5px;color:var(--t3);}
.platform-row.on-dark .btn-platform{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.14);}
.platform-row.on-dark .btn-platform .pf-text b{color:#fff;}
.platform-row.on-dark .btn-platform .pf-text span{color:rgba(255,255,255,.62);}
.platform-row.on-dark .btn-platform i{color:#3ee0ad;}

/* ---------- 内链区块 ---------- */
.link-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.link-card{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px;box-shadow:var(--sh-sm);text-decoration:none;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.link-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:#CFE6DB;text-decoration:none;}
.link-card h3{font-size:17px;font-weight:600;color:var(--t1);margin-bottom:8px;}
.link-card p{font-size:14px;color:var(--t2);}
.link-card .go{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:13.5px;font-weight:600;color:var(--link);}
.link-card:hover .go i{transform:translateX(3px);}
.link-card .go i{transition:transform .22s ease;}

/* ---------- 收束 CTA ---------- */
.cta-strip{
  border-radius:var(--r-lg);background:var(--dark);color:#fff;
  padding:48px 46px;position:relative;overflow:hidden;
  box-shadow:0 24px 48px rgba(14,22,38,.24);
}
.cta-strip::before{
  content:"";position:absolute;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(0,195,137,.34),rgba(0,195,137,0) 70%);
  top:-180px;right:-120px;
}
.cta-strip::after{
  content:"";position:absolute;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(106,75,255,.34),rgba(106,75,255,0) 70%);
  bottom:-190px;left:-100px;
}
.cta-strip .inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;}
.cta-strip h2{color:#fff;font-size:clamp(22px,2.6vw,30px);font-weight:700;}
.cta-strip p{color:rgba(255,255,255,.72);margin-top:10px;font-size:15px;max-width:620px;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:var(--sec);
  background:var(--dark);color:rgba(255,255,255,.72);
  padding:64px 0 26px;position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background-image:linear-gradient(90deg,rgba(0,195,137,0),rgba(0,195,137,.7),rgba(106,75,255,.7),rgba(106,75,255,0));
}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;}
.footer-col h4{color:#fff;font-size:14px;font-weight:700;margin-bottom:16px;letter-spacing:.4px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{color:rgba(255,255,255,.72);font-size:14px;transition:.22s ease;display:inline-block;}
.footer-col ul li a:hover{color:var(--brand-a);transform:translateX(-2px);text-decoration:none;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand b{color:#fff;font-size:15px;}
.footer-brand span{color:rgba(255,255,255,.55);font-size:12px;}
.footer-col p{font-size:13.5px;color:rgba(255,255,255,.62);line-height:1.8;}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  text-align:center;font-size:13px;color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.78);}
.footer-bottom a:hover{color:var(--brand-a);}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  :root{--sec:76px;}
  .footer-top{grid-template-columns:1.4fr 1fr 1fr;gap:30px;}
}
@media (max-width:991.98px){
  :root{--sec:64px;}
  .nav-toggle{display:grid;place-items:center;}
  .nav-menu{
    position:absolute;top:calc(100% + 12px);left:0;right:0;
    flex-direction:column;align-items:stretch;gap:2px;
    background:rgba(14,22,38,.97);border-radius:20px;padding:10px;
    box-shadow:0 24px 48px rgba(14,22,38,.32);
    display:none;
  }
  .nav-wrap.open .nav-menu{display:flex;}
  .nav-menu a{
    color:rgba(255,255,255,.86);font-size:15.5px;height:52px;
    display:flex;align-items:center;border-radius:14px;padding:0 16px;
  }
  .nav-menu a:hover{color:#fff;background:rgba(255,255,255,.08);}
  .nav-menu a.active{color:#fff;background:rgba(255,255,255,.10);}
  .nav-menu a.active::after{
    left:0;top:12px;bottom:12px;width:4px;height:auto;transform:none;border-radius:4px;
  }
  .nav-cta{display:none;}
  .nav-pill{justify-content:space-between;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .tile-grid{grid-template-columns:1fr;}
  .scene-grid{grid-template-columns:1fr;}
  .link-grid{grid-template-columns:1fr;}
  .footer-top{grid-template-columns:1fr 1fr;gap:28px;}
  .cta-strip{padding:36px 28px;}
  .page-hero{padding:52px 0 44px;}
}
@media (max-width:767.98px){
  :root{--sec:52px;}
  body{font-size:15.5px;line-height:1.8;}
  .brand-text b{font-size:13.5px;}
  .brand-text span{display:none;}
  .section-head h2{font-size:23px;}
  .btn-lg{padding:14px 24px;font-size:15.5px;}
  .platform-row{gap:12px;}
  .btn-platform{width:100%;min-width:0;}
  .step{gap:14px;}
  .step-num{width:42px;height:42px;font-size:15px;}
  .step::after{left:20px;top:46px;}
  .footer-top{grid-template-columns:1fr;}
  .help-card{padding:26px 22px;}
  .acc-head{padding:16px 18px;font-size:15.5px;}
  .acc-body{padding:0 18px 18px;font-size:14.5px;}
}
@media (max-width:575.98px){
  .shell{padding:0 16px;}
  .tagbar{border-radius:20px;padding:10px;}
  .tag-chip{padding:8px 16px;font-size:13.5px;}
  .scene-card{padding:24px 20px;}
  .card-soft{padding:22px 20px;}
  .hero-badges{gap:8px;}
  .pill-badge{height:30px;font-size:12px;}
}