/* roulang page: index */
:root{
  --primary:#00D8B4;
  --secondary:#FF3E7F;
  --accent:#FFA51F;
  --base:#0A0915;
  --layer:#12101F;
  --card:#1A1730;
  --line:rgba(255,255,255,.07);
  --text:#F5F3FF;
  --text2:#B0AACB;
  --text3:#7C7595;
  --ok:#2FD07A;
  --warn:#FFA51F;
  --err:#FF5A5F;
  --r-card:16px;
  --r-btn:10px;
  --r-badge:6px;
  --r-img:12px;
  --shadow-deep:0 8px 24px rgba(0,0,0,.45);
  --shadow-glow:0 0 0 1px rgba(0,216,180,.4),0 12px 32px rgba(0,216,180,.16);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  padding-top:40px;
  background:var(--base);
  color:var(--text);
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
  font-size:16px;
  line-height:1.78;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid rgba(0,216,180,.6);outline-offset:2px;border-radius:8px}
::selection{background:rgba(0,216,180,.3)}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:1024px){.container{padding:0 32px}}
.section{padding:56px 0}
@media(min-width:768px){.section{padding:72px 0}}
@media(min-width:1024px){.section{padding:96px 0}}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
.section-title{font-size:22px;font-weight:800;letter-spacing:-.01em;line-height:1.3;position:relative;padding-left:14px}
.section-title::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:2px;background:linear-gradient(180deg,var(--primary),var(--secondary))}
@media(min-width:1024px){.section-title{font-size:32px}}
.section-desc{margin-top:10px;color:var(--text2);font-size:15px;max-width:640px}
.linkmore{color:var(--primary);font-size:14px;font-weight:700;display:inline-flex;align-items:center;gap:6px;transition:color .15s ease-out}
.linkmore:hover{color:#5CF0D6}
.grid-bg{
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:32px 32px;
}

/* ============ 顶部倒计时条 ============ */
.topbar{position:fixed;top:0;left:0;right:0;height:40px;z-index:70;background:rgba(18,16,31,.96);border-bottom:1px solid rgba(255,255,255,.07)}
.topbar::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;background:linear-gradient(90deg,var(--primary),var(--secondary))}
.topbar-inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:12px}
.topbar-label{font-size:12px;font-weight:700;color:var(--text2);white-space:nowrap}
.topbar-label i{color:var(--accent);margin-right:6px}
.countdown{display:flex;align-items:center;gap:6px}
.cd-cell{display:flex;flex-direction:column;align-items:center;line-height:1}
.cd-num{min-width:34px;padding:4px 6px;border-radius:6px;background:var(--card);color:var(--accent);font-weight:800;font-size:14px;text-align:center;font-variant-numeric:tabular-nums;letter-spacing:.02em}
.cd-unit{font-size:10px;color:var(--text3);margin-top:3px}
.cd-sep{color:var(--text3);font-weight:800;padding-bottom:11px}
.topbar-link{font-size:12px;font-weight:700;color:var(--primary);white-space:nowrap}
.topbar-link:hover{color:#7BF5DF}
@media(max-width:640px){
  .topbar-label{display:none}
  .topbar-inner{justify-content:space-between}
}

/* ============ 导航 ============ */
.site-header{position:sticky;top:40px;z-index:60;background:rgba(10,9,21,.86);border-bottom:1px solid transparent;transition:background-color .18s ease-out,border-color .18s ease-out}
.site-header.scrolled{background:rgba(10,9,21,.94);border-bottom-color:var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:66px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--primary),var(--secondary));display:flex;align-items:center;justify-content:center;font-weight:900;font-size:13px;color:#0A0915;letter-spacing:-.02em}
.brand-text{font-size:17px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.nav-links{display:none;align-items:center;gap:4px}
@media(min-width:1024px){.nav-links{display:flex}}
.nav-link{position:relative;padding:10px 14px;font-size:15px;color:var(--text2);font-weight:600;border-radius:8px;transition:color .15s ease-out}
.nav-link:hover{color:var(--text)}
.nav-link.active{color:var(--text)}
.nav-link.active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--primary)}
.nav-right{display:flex;align-items:center;gap:10px}
.status-badge{display:none;padding:4px 10px;border-radius:var(--r-badge);background:var(--accent);color:#0A0915;font-size:12px;font-weight:800;white-space:nowrap}
@media(min-width:768px){.status-badge{display:inline-block}}
.nav-cta{display:none}
@media(min-width:1024px){.nav-cta{display:inline-flex}}
.nav-toggle{display:flex;flex-direction:column;justify-content:center;gap:4px;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);align-items:center}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;transition:transform .18s ease-out,opacity .18s ease-out}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
@media(min-width:1024px){.nav-toggle{display:none}}
.mobile-drawer{max-height:0;overflow:hidden;transition:max-height .25s ease-out;border-top:1px solid transparent;background:rgba(18,16,31,.99)}
.mobile-drawer.open{max-height:460px;border-top-color:var(--line)}
.drawer-inner{padding:10px 20px 20px}
.drawer-link{display:flex;align-items:center;justify-content:space-between;height:48px;font-size:16px;font-weight:600;color:var(--text2);border-bottom:1px solid var(--line)}
.drawer-link.active{color:var(--primary)}
.drawer-cta{margin-top:16px;width:100%}

/* ============ 按钮 / 徽章 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:var(--r-btn);font-size:15px;font-weight:700;border:1px solid transparent;transition:transform .15s ease-out,box-shadow .15s ease-out,background-color .15s ease-out,color .15s ease-out}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--primary);color:#0A0915}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(0,216,180,.5),0 12px 28px rgba(0,216,180,.25)}
.btn-ghost{border-color:var(--secondary);color:var(--text)}
.btn-ghost:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(255,62,127,.45),0 12px 28px rgba(255,62,127,.2)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-pill{border-radius:999px}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:var(--r-badge);font-size:12px;font-weight:700;line-height:1.4}
.badge-cat{background:rgba(255,62,127,.14);color:#FF8FB6}
.badge-status{background:var(--accent);color:#0A0915}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;padding:48px 0 56px;background:radial-gradient(900px 420px at 82% 8%,rgba(0,216,180,.16),transparent 62%),radial-gradient(700px 360px at 6% 92%,rgba(255,62,127,.13),transparent 65%),var(--base)}
.hero::before{content:"";position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:32px 32px;opacity:.9}
.hero-inner{position:relative;display:grid;gap:44px;grid-template-columns:1fr;align-items:center}
@media(min-width:1024px){.hero{padding:72px 0 88px}.hero-inner{grid-template-columns:7fr 5fr;gap:56px}}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 12px;border-radius:999px;border:1px solid rgba(0,216,180,.35);background:rgba(0,216,180,.08);color:#7BF5DF;font-size:13px;font-weight:700}
.hero h1{margin-top:18px;font-size:30px;font-weight:800;line-height:1.28;letter-spacing:-.01em}
@media(min-width:640px){.hero h1{font-size:38px}}
@media(min-width:1024px){.hero h1{font-size:52px;line-height:1.18}}
.hero h1 em{font-style:normal;background:linear-gradient(135deg,var(--primary),var(--secondary));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{margin-top:18px;font-size:17px;color:var(--text2);max-width:560px}
.hero-actions{margin-top:28px;display:flex;flex-wrap:wrap;gap:14px}
.hero-note{margin-top:14px;font-size:13px;color:var(--text3)}
.hero-stats{margin-top:34px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;max-width:520px}
.stat-item{padding:14px 16px;border-radius:var(--r-img);background:var(--layer);border:1px solid var(--line)}
.stat-num{font-size:22px;font-weight:900;color:var(--primary);font-variant-numeric:tabular-nums;line-height:1.2}
.stat-label{margin-top:4px;font-size:12px;color:var(--text3)}
.hero-visual{position:relative}
.hero-img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--r-card);border:1px solid var(--line);box-shadow:var(--shadow-deep)}
.hero-float{position:absolute;left:0;bottom:-22px;display:flex;align-items:center;gap:12px;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:10px 16px 10px 10px;transform:rotate(-2deg);box-shadow:var(--shadow-deep)}
@media(min-width:1024px){.hero-float{left:-18px}}
.hero-float img{width:56px;height:56px;object-fit:cover;border-radius:10px}
.hero-float strong{display:block;font-size:14px;font-weight:800}
.hero-float span{display:block;font-size:12px;color:var(--text3)}

/* ============ 卖点错落 ============ */
.points{display:grid;grid-template-columns:1fr;gap:24px}
@media(min-width:768px){.points{grid-template-columns:1fr 1fr;gap:28px 32px}}
.point{position:relative;padding:26px 24px;border-radius:var(--r-card);background:var(--card);border:1px solid var(--line);transition:transform .16s ease-out,box-shadow .16s ease-out}
.point:hover{transform:translateY(-2px);box-shadow:var(--shadow-glow)}
@media(min-width:768px){.point:nth-child(even){margin-top:44px}}
.point-num{display:block;font-size:46px;font-weight:900;line-height:1;letter-spacing:-.02em;color:transparent;-webkit-text-stroke:1.5px rgba(255,165,31,.9);font-variant-numeric:tabular-nums;margin-bottom:12px}
.point h3{font-size:19px;font-weight:800;line-height:1.4}
.point p{margin-top:10px;font-size:15px;color:var(--text2)}
.point-tag{margin-top:16px}

/* ============ 图墙 ============ */
.wall{display:grid;grid-template-columns:1fr;grid-auto-rows:170px;gap:16px}
@media(min-width:640px){.wall{grid-template-columns:repeat(2,1fr);grid-auto-rows:150px}}
@media(min-width:1024px){
  .wall{grid-template-columns:repeat(4,1fr);grid-auto-rows:148px}
  .wall .col2{grid-column:span 2}
  .wall .row2{grid-row:span 2}
}
.wall-item{position:relative;display:block;overflow:hidden;border-radius:var(--r-card);background:var(--layer);border:1px solid var(--line)}
.wall-item img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out}
.wall-item::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,9,21,0) 38%,rgba(10,9,21,.82));transition:opacity .25s ease-out}
.wall-item:hover img{transform:scale(1.03)}
.wall-item:hover::after{opacity:1}
.wall-tag{position:absolute;left:12px;bottom:12px;z-index:2;font-size:12px;font-weight:700;padding:4px 10px;border-radius:var(--r-badge);background:rgba(10,9,21,.78);border:1px solid var(--line);color:var(--text)}
.wall-item:hover .wall-tag{border-color:rgba(0,216,180,.5);color:#7BF5DF}

/* ============ 领取面板 ============ */
.panel{margin-top:0;border-radius:20px;background:var(--layer);border:1px solid var(--line);overflow:hidden;box-shadow:var(--shadow-deep)}
.panel-grid{display:grid;grid-template-columns:1fr}
@media(min-width:1024px){.panel-grid{grid-template-columns:6fr 5fr}}
.panel-left{padding:32px 24px;position:relative}
@media(min-width:1024px){.panel-left{padding:44px 40px}}
.panel-left::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:linear-gradient(180deg,var(--primary),var(--secondary))}
.panel-right{padding:28px 24px;background:rgba(10,9,21,.45);border-top:1px solid var(--line)}
@media(min-width:1024px){.panel-right{padding:44px 40px;border-top:0;border-left:1px solid var(--line)}}
.check-list{margin-top:22px;display:grid;gap:12px}
.check-list li{display:flex;gap:10px;font-size:15px;color:var(--text2)}
.check-list i{color:var(--primary);margin-top:5px;font-size:13px}
.form-row{display:flex;gap:12px;flex-wrap:wrap}
.field{flex:1 1 200px;min-width:0}
.field input{width:100%;height:48px;padding:0 16px;border-radius:var(--r-btn);background:var(--card);border:1px solid var(--line);color:var(--text);transition:border-color .15s ease-out,box-shadow .15s ease-out}
.field input::placeholder{color:var(--text3)}
.field input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 2px rgba(0,216,180,.22)}
.field input.is-error{border-color:var(--err);box-shadow:0 0 0 2px rgba(255,90,95,.18)}
.form-msg{margin-top:10px;font-size:13px;min-height:19px}
.form-msg.error{color:var(--err)}
.form-msg.ok{color:var(--ok)}
.form-hint{margin-top:6px;font-size:12.5px;color:var(--text3)}

/* ============ FAQ ============ */
.faq{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 16px 18px 0;text-align:left;font-size:16px;font-weight:700;color:var(--text);transition:color .15s ease-out}
.faq-q:hover{color:var(--primary)}
.faq-icon{flex:0 0 26px;width:26px;height:26px;border-radius:8px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:15px;color:var(--primary);font-weight:800;transition:background-color .15s ease-out}
.faq-item.open .faq-q{color:var(--primary)}
.faq-item.open .faq-icon{background:rgba(0,216,180,.14);border-color:rgba(0,216,180,.45)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease-out}
.faq-item.open{border-left:3px solid var(--primary);padding-left:16px}
.faq-a-inner{padding:0 0 20px;font-size:15px;line-height:1.85;color:var(--text2);max-width:820px}

/* ============ 最新信息（CMS） ============ */
.post-hero{display:grid;grid-template-columns:1fr;gap:20px;padding:20px;border-radius:var(--r-card);background:var(--card);border:1px solid var(--line);transition:transform .16s ease-out,box-shadow .16s ease-out,border-color .16s ease-out}
@media(min-width:768px){.post-hero{grid-template-columns:5fr 7fr;align-items:center;padding:24px}}
.post-hero:hover{transform:translateY(-2px);box-shadow:var(--shadow-glow)}
.post-hero-img{border-radius:var(--r-img);overflow:hidden;background:var(--layer);aspect-ratio:16/9}
.post-hero-img img{width:100%;height:100%;object-fit:cover}
.post-hero h3{margin-top:12px;font-size:20px;font-weight:800;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .15s ease-out}
.post-hero:hover h3{color:var(--primary)}
.post-hero p{margin-top:10px;font-size:15px;color:var(--text2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{margin-top:14px;display:flex;align-items:center;gap:12px;font-size:13px;color:var(--text3)}
.post-grid{margin-top:24px;display:grid;grid-template-columns:1fr;gap:20px}
@media(min-width:640px){.post-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.post-grid{grid-template-columns:repeat(3,1fr)}}
.post-card{display:flex;flex-direction:column;border-radius:var(--r-card);background:var(--card);border:1px solid var(--line);overflow:hidden;transition:transform .16s ease-out,box-shadow .16s ease-out}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-glow)}
.post-card:hover h3{color:var(--primary)}
.post-card-img{aspect-ratio:16/9;background:var(--layer);overflow:hidden}
.post-card-img img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out}
.post-card:hover .post-card-img img{transform:scale(1.03)}
.post-card-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1}
.post-card h3{margin-top:12px;font-size:17px;font-weight:800;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .15s ease-out}
.post-card p{margin-top:8px;font-size:14px;color:var(--text2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card .post-meta{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);margin-top:16px}
.empty-box{text-align:center;padding:48px 24px;border-radius:var(--r-card);background:var(--card);border:1px dashed rgba(255,255,255,.14)}
.empty-box i{font-size:30px;color:var(--text3)}
.empty-box p{margin-top:14px;color:var(--text2)}
.empty-box .btn{margin-top:20px}

/* ============ 页脚 ============ */
.site-footer{background:var(--layer);border-top:1px solid var(--line);margin-top:0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;padding:52px 20px 36px}
@media(min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:40px;padding:64px 20px 44px}}
@media(min-width:1024px){.footer-grid{padding-left:32px;padding-right:32px}}
.footer-grid h4{font-size:15px;font-weight:800;margin-bottom:16px}
.footer-brand p{margin-top:14px;font-size:14px;color:var(--text3);max-width:340px}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:14px;color:var(--text2);transition:color .15s ease-out}
.footer-links a:hover{color:var(--primary)}
.socials{margin-top:18px;display:flex;gap:10px}
.socials a{width:36px;height:36px;border-radius:10px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--text2);transition:color .15s ease-out,border-color .15s ease-out,transform .15s ease-out}
.socials a:hover{color:var(--primary);border-color:rgba(0,216,180,.45);transform:translateY(-2px)}
.footer-bottom{border-top:1px solid var(--line)}
.footer-bottom .container{padding-top:18px;padding-bottom:18px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:12.5px;color:var(--text3)}

/* roulang page: article */
:root{
  --base:#0A0915;
  --base-2:#12101F;
  --card:#1A1730;
  --line:rgba(255,255,255,.07);
  --line-strong:rgba(255,255,255,.14);
  --primary:#00D8B4;
  --secondary:#FF3E7F;
  --accent:#FFA51F;
  --text:#F5F3FF;
  --text-2:#B0AACB;
  --text-3:#7C7595;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:10px;
  --shadow:0 8px 24px rgba(0,0,0,.45);
  --shadow-glow:0 12px 32px rgba(0,216,180,.16);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--base);
  color:var(--text);
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;line-height:1.3;letter-spacing:-0.01em}
p{margin:0}
ul,ol{margin:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--primary);color:#0A0915;padding:10px 16px;border-radius:0 0 10px 0;z-index:200}
.skip-link:focus{left:0}
:focus-visible{outline:2px solid rgba(0,216,180,.6);outline-offset:2px}

/* ============ 按钮与标签 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;border-radius:var(--radius-sm);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;white-space:nowrap;transition:transform .16s ease-out,box-shadow .16s ease-out,background .16s ease-out,color .16s ease-out,border-color .16s ease-out}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--primary);color:#0A0915;box-shadow:0 8px 20px rgba(0,216,180,.22)}
.btn-primary:hover{box-shadow:0 12px 30px rgba(0,216,180,.34)}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--secondary)}
.btn-ghost:hover{background:rgba(255,62,127,.12);box-shadow:0 10px 26px rgba(255,62,127,.2)}
.btn-pill{border-radius:999px}
.btn-block{width:100%}
.btn[disabled]{opacity:.45;pointer-events:none}
.badge{display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:6px;font-size:12.5px;font-weight:700;letter-spacing:.02em}
.badge-cat{background:rgba(255,62,127,.14);color:#FF86AE;border:1px solid rgba(255,62,127,.28)}
.status-pill{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 10px;border-radius:6px;background:var(--accent);color:#0A0915;font-size:12px;font-weight:800}
.status-pill::before{content:"";width:6px;height:6px;border-radius:50%;background:#0A0915;animation:pulse 1.6s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.3}}
.text-link{color:var(--primary);font-size:14px;font-weight:600;border-bottom:1px solid rgba(0,216,180,.35);transition:border-color .16s ease,color .16s ease}
.text-link:hover{border-color:var(--primary)}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:60;background:rgba(10,9,21,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid transparent;transition:background .2s ease,border-color .2s ease}
.site-header.is-scrolled{background:rgba(10,9,21,.94);border-bottom-color:var(--line)}
.nav-wrap{display:flex;align-items:center;gap:24px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:10px;background:linear-gradient(45deg,var(--primary),var(--secondary));color:#0A0915;font-weight:900;font-size:15px;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.brand-text{font-size:17px;font-weight:800;letter-spacing:.01em;color:var(--text)}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{position:relative;display:inline-flex;align-items:center;height:38px;padding:0 14px;border-radius:8px;font-size:15px;color:var(--text-2);transition:color .16s ease,background .16s ease}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-link.active{color:var(--text);font-weight:600}
.nav-link.active::after{content:"";position:absolute;left:14px;right:14px;bottom:-2px;height:2px;border-radius:2px;background:var(--primary)}
.nav-actions{display:flex;align-items:center;gap:12px}
.hamburger{display:none;flex-direction:column;justify-content:center;gap:5px;width:42px;height:42px;padding:0 10px;background:transparent;border:1px solid var(--line-strong);border-radius:10px;cursor:pointer}
.hamburger span{display:block;height:2px;background:var(--text);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.hamburger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger[aria-expanded="true"] span:nth-child(2){opacity:0}
.hamburger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.drawer{position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);z-index:90;background:var(--base-2);border-left:1px solid var(--line);padding:20px;display:flex;flex-direction:column;gap:6px;transform:translateX(102%);transition:transform .24s ease-out;overflow-y:auto}
.drawer.open{transform:translateX(0)}
.drawer-mask{position:fixed;inset:0;background:rgba(5,4,12,.66);z-index:85;opacity:0;pointer-events:none;transition:opacity .24s ease}
.drawer-mask.open{opacity:1;pointer-events:auto}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;margin-bottom:8px;border-bottom:1px solid var(--line)}
.drawer-close{width:34px;height:34px;border-radius:8px;background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text-2);font-size:18px;line-height:1;cursor:pointer}
.drawer-link{display:flex;align-items:center;height:48px;padding:0 12px;border-radius:10px;color:var(--text-2);font-size:16px;transition:background .16s ease,color .16s ease}
.drawer-link:hover{background:rgba(255,255,255,.05);color:var(--text)}
.drawer-cta{margin-top:auto;padding-top:18px}

/* ============ 文章头部 ============ */
.article-hero{position:relative;overflow:hidden;padding:34px 0 0;background:
  radial-gradient(900px 380px at 12% -12%, rgba(0,216,180,.14), transparent 70%),
  radial-gradient(760px 340px at 90% -4%, rgba(255,62,127,.11), transparent 70%),
  linear-gradient(180deg,#0A0915,#0C0B1A 72%,#0A0915)}
.article-hero::before{content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:32px 32px;
  -webkit-mask-image:radial-gradient(circle at 50% 0,#000,transparent 74%);
  mask-image:radial-gradient(circle at 50% 0,#000,transparent 74%)}
.article-hero .container{position:relative;z-index:1}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13.5px;color:var(--text-3);margin-bottom:22px}
.breadcrumb a{color:var(--text-3);transition:color .16s ease}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:rgba(255,255,255,.2)}
.breadcrumb .current{color:var(--text-2);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-title{font-size:30px;font-weight:800;line-height:1.32;letter-spacing:-.01em;color:var(--text);max-width:900px}
.article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:14px;margin-top:20px;font-size:13.5px;color:var(--text-3)}
.meta-item{display:inline-flex;align-items:center;gap:6px}
.meta-item i{color:var(--primary);font-size:12px}
.grad-line{height:1px;width:100%;margin:26px 0 46px;background:linear-gradient(45deg,var(--primary),var(--secondary));opacity:.65;border-radius:2px}

/* ============ 正文阅读区 ============ */
.article-body{max-width:780px;margin:0 auto;font-size:17px;line-height:1.85;color:#C8C2DE;word-wrap:break-word;overflow-wrap:break-word}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 1.2em}
.article-body h2{position:relative;font-size:26px;font-weight:800;color:var(--text);margin:44px 0 16px;padding-left:14px;letter-spacing:-.01em}
.article-body h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:3px;background:var(--primary)}
.article-body h3{font-size:20px;font-weight:700;color:var(--text);margin:32px 0 12px}
.article-body h4{font-size:17px;font-weight:700;color:var(--text);margin:24px 0 10px}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;text-decoration-color:rgba(0,216,180,.4)}
.article-body a:hover{text-decoration-color:var(--primary)}
.article-body strong{color:var(--text);font-weight:700}
.article-body ul,.article-body ol{padding-left:22px;margin:0 0 1.2em}
.article-body li{margin-bottom:8px}
.article-body ul li::marker{color:var(--primary)}
.article-body ol li::marker{color:var(--primary);font-weight:700}
.article-body blockquote{margin:26px 0;padding:16px 22px;border-left:3px solid var(--secondary);background:rgba(255,62,127,.07);border-radius:0 12px 12px 0;color:var(--text)}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;margin:26px auto;height:auto}
.article-body figure{margin:26px 0}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line-strong);padding:11px 14px;text-align:left}
.article-body th{background:rgba(255,255,255,.045);color:var(--text);font-weight:700}
.article-body code{background:rgba(0,216,180,.1);color:#7DF0DA;padding:2px 7px;border-radius:6px;font-size:15px}
.article-body pre{background:var(--base-2);border:1px solid var(--line);border-radius:12px;padding:16px 18px;overflow-x:auto;margin:24px 0}
.article-body hr{border:0;height:1px;background:var(--line-strong);margin:34px 0}
.empty-state{text-align:center;padding:56px 24px;border:1px dashed var(--line-strong);border-radius:var(--radius-lg);background:var(--base-2)}
.empty-state h2{font-size:22px;margin-bottom:12px}
.empty-state p{color:var(--text-2);margin-bottom:22px}

/* ============ CTA 条 ============ */
.cta-bar{margin:72px 0 0}
.cta-bar-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:26px 28px;border-radius:var(--radius-lg);background:linear-gradient(120deg,rgba(0,216,180,.12),rgba(255,62,127,.1)),var(--base-2);border:1px solid var(--line-strong);box-shadow:var(--shadow)}
.cta-bar-inner p{font-size:16px;color:var(--text);font-weight:600;max-width:640px}

/* ============ 相关推荐 ============ */
.related{margin:76px 0 0}
.section-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:22px}
.section-head h2{font-size:24px;font-weight:800}
.related-list{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.related-card{display:flex;gap:14px;align-items:center;padding:14px;border-radius:var(--radius-lg);background:var(--card);border:1px solid var(--line);transition:transform .16s ease-out,border-color .16s ease-out,box-shadow .16s ease-out}
.related-card:hover{transform:translateY(-2px);border-color:rgba(0,216,180,.45);box-shadow:var(--shadow-glow)}
.related-thumb{flex:0 0 88px;width:88px;height:66px;border-radius:var(--radius-md);overflow:hidden;background:#0F0D1C}
.related-thumb img{width:100%;height:100%;object-fit:cover}
.related-body{display:flex;flex-direction:column;gap:5px;min-width:0}
.related-body strong{font-size:15px;font-weight:700;color:var(--text);line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.related-card:hover .related-body strong{color:var(--primary)}
.related-body em{font-style:normal;font-size:13px;color:var(--text-3);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.back-row{display:flex;align-items:center;justify-content:space-between;gap:16px;margin:44px 0 0;padding-top:22px;border-top:1px solid var(--line)}
.to-top{position:fixed;right:22px;bottom:26px;width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:var(--card);border:1px solid var(--line-strong);color:var(--primary);cursor:pointer;opacity:0;pointer-events:none;transition:opacity .2s ease,transform .16s ease-out;z-index:50}
.to-top.show{opacity:1;pointer-events:auto}
.to-top:hover{transform:translateY(-2px);box-shadow:var(--shadow-glow)}

/* ============ 页脚 ============ */
.site-footer{margin-top:96px;background:var(--base-2);border-top:1px solid var(--line)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:40px;padding:56px 20px 42px}
.footer-brand p{color:var(--text-2);font-size:14px;margin-top:14px;max-width:320px}
.socials{display:flex;gap:10px;margin-top:18px}
.socials a{width:36px;height:36px;border-radius:10px;display:flex;align-items:center;justify-content:center;background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text-2);transition:color .16s ease,border-color .16s ease,transform .16s ease-out}
.socials a:hover{color:var(--primary);border-color:rgba(0,216,180,.45);transform:translateY(-2px)}
.site-footer h4{font-size:15px;font-weight:700;color:var(--text);margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--text-2);transition:color .16s ease}
.footer-links a:hover{color:var(--primary)}
.footer-bottom{border-top:1px solid var(--line);padding:18px 0}
.footer-bottom .container{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:12.5px;color:var(--text-3)}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .nav-links{display:none}
  .hamburger{display:flex}
  .nav-actions .status-pill{display:none}
  .nav-wrap{gap:14px}
  .related-list{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .article-title{font-size:26px}
  .article-body{font-size:16.5px}
  .article-body h2{font-size:22px;margin-top:36px}
  .article-body h3{font-size:18px}
  .grad-line{margin:22px 0 36px}
  .cta-bar{margin-top:56px}
  .cta-bar-inner{flex-direction:column;align-items:flex-start;padding:22px}
  .related-list{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;padding:44px 20px 32px}
  .site-footer{margin-top:64px}
  .back-row{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .article-title{font-size:23px}
  .brand-text{font-size:16px}
  .btn{height:42px;padding:0 16px;font-size:14.5px}
  .cta-bar-inner .btn{width:100%}
  .to-top{right:16px;bottom:18px}
}

/* roulang page: category1 */
:root{
  --primary:#00D8B4;
  --secondary:#FF3E7F;
  --accent:#FFA51F;
  --base:#0A0915;
  --base-2:#12101F;
  --card:#1A1730;
  --line:rgba(255,255,255,.07);
  --text:#F5F3FF;
  --text-2:#B0AACB;
  --text-3:#7C7595;
  --ok:#2FD07A;
  --warn:#FFA51F;
  --err:#FF5A5F;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow:0 8px 24px rgba(0,0,0,.45);
  --shadow-hover:0 0 0 1px rgba(0,216,180,.4), 0 12px 32px rgba(0,216,180,.16);
  --grad:linear-gradient(45deg,#00D8B4,#FF3E7F);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--base);
  color:var(--text);
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .16s var(--ease),opacity .16s var(--ease);}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{
  outline:2px solid rgba(0,216,180,.6);
  outline-offset:2px;
  border-radius:4px;
}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.3;}
h1{font-size:30px;}
h2{font-size:22px;}
h3{font-size:18px;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
}
@media (min-width:1024px){
  .container{padding:0 32px;}
  h1{font-size:50px;}
  h2{font-size:34px;}
}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";font-weight:800;}

/* ---------- 顶部倒计时条 ---------- */
.countdown-bar{
  position:relative;
  background:var(--base-2);
  border-bottom:1px solid var(--line);
}
.countdown-bar::after{
  content:"";
  position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:var(--grad);
}
.countdown-inner{
  display:flex;align-items:center;gap:14px;
  min-height:40px;
  font-size:13px;
}
.cd-label{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--text-2);
  white-space:nowrap;
}
.cd-label::before{
  content:"";width:6px;height:6px;border-radius:50%;
  background:var(--primary);box-shadow:0 0 8px var(--primary);
}
.cd-grid{display:flex;align-items:center;gap:6px;margin-left:auto;}
.cd-cell{
  display:flex;flex-direction:column;align-items:center;
  min-width:40px;
  padding:2px 6px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:6px;
}
.cd-num{
  font-variant-numeric:tabular-nums;
  font-weight:800;font-size:14px;line-height:1.2;
  color:var(--accent);
}
.cd-unit{font-size:10px;color:var(--text-3);line-height:1.2;}
.cd-link{
  color:var(--primary);
  font-size:13px;
  white-space:nowrap;
}
.cd-link:hover{color:var(--text);}
@media (max-width:719px){
  .cd-label{display:none;}
  .cd-grid{margin-left:0;}
  .cd-link{margin-left:auto;}
}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(10,9,21,.86);
  backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.site-header.scrolled{
  border-bottom-color:var(--line);
  background:rgba(10,9,21,.94);
}
.nav-wrap{padding:12px 0;}
.nav-inner{
  display:flex;align-items:center;gap:20px;
}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-weight:800;
  letter-spacing:-.01em;
  flex:none;
}
.brand-mark{
  display:grid;place-items:center;
  width:36px;height:36px;border-radius:10px;
  background:var(--grad);
  color:#0A0915;
  font-size:14px;font-weight:900;
  letter-spacing:0;
}
.brand-text{font-size:17px;color:var(--text);white-space:nowrap;}
.brand:hover .brand-text{color:var(--primary);}
.nav-links{
  display:flex;align-items:center;gap:26px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--text-2);
  padding:6px 0;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--primary);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .18s var(--ease);
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--text);font-weight:700;}
.nav-link.active::after{transform:scaleX(1);}
.nav-actions{
  display:flex;align-items:center;gap:12px;
  flex:none;
}
.status-badge{
  display:inline-flex;align-items:center;
  padding:4px 10px;
  border-radius:6px;
  background:var(--accent);
  color:#0A0915;
  font-size:12px;
  font-weight:800;
  white-space:nowrap;
}
.menu-toggle{
  display:none;
  width:42px;height:42px;
  border:1px solid var(--line);
  border-radius:10px;
  background:var(--card);
  cursor:pointer;
  padding:0;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
}
.menu-toggle span{
  display:block;width:18px;height:2px;background:var(--text);
  border-radius:2px;
  transition:transform .18s var(--ease),opacity .18s var(--ease);
}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

@media (max-width:1023px){
  .menu-toggle{display:flex;}
  .nav-links{
    position:fixed;
    top:0;left:0;bottom:0;
    width:min(300px,84vw);
    flex-direction:column;
    align-items:stretch;
    gap:0;
    margin-left:0;
    padding:96px 24px 40px;
    background:var(--base-2);
    border-right:1px solid var(--line);
    transform:translateX(-104%);
    transition:transform .22s var(--ease);
    z-index:70;
    overflow-y:auto;
  }
  .nav-links.open{transform:translateX(0);}
  .nav-link{
    display:flex;align-items:center;
    height:48px;
    font-size:16px;
    border-bottom:1px solid var(--line);
  }
  .nav-link::after{display:none;}
  .nav-link.active{color:var(--primary);}
  .status-badge{display:none;}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  gap:8px;
  height:48px;
  padding:0 22px;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:700;
  cursor:pointer;
  transition:transform .16s var(--ease),box-shadow .16s var(--ease),background .16s var(--ease),color .16s var(--ease),border-color .16s var(--ease);
  white-space:nowrap;
}
.btn:hover{transform:translateY(-2px);}
.btn:active{transform:translateY(0);}
.btn-primary{
  background:var(--primary);
  color:#0A0915;
  box-shadow:0 8px 24px rgba(0,0,0,.45);
}
.btn-primary:hover{
  box-shadow:0 12px 30px rgba(0,216,180,.28);
}
.btn-ghost{
  background:transparent;
  color:var(--text);
  border-color:var(--secondary);
}
.btn-ghost:hover{
  box-shadow:0 0 0 1px rgba(255,62,127,.45), 0 12px 28px rgba(255,62,127,.14);
  color:#fff;
}
.btn-sm{height:40px;padding:0 16px;font-size:14px;border-radius:10px;}
.btn-pill{border-radius:999px;}
.btn[disabled],.btn.is-disabled{
  opacity:.45;
  pointer-events:none;
  transform:none;
  box-shadow:none;
}

/* ---------- 通用板块 ---------- */
.section{padding:56px 0;}
@media (min-width:768px){.section{padding:72px 0;}}
@media (min-width:1024px){.section{padding:96px 0;}}
.section-head{
  display:flex;flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px;
  margin-bottom:32px;
}
.section-head h2{
  position:relative;
  padding-left:16px;
}
.section-head h2::before{
  content:"";
  position:absolute;left:0;top:6px;bottom:6px;width:4px;
  border-radius:2px;
  background:var(--primary);
}
.section-sub{
  color:var(--text-2);
  font-size:15px;
  max-width:640px;
}
.link-more{
  color:var(--primary);
  font-size:14px;
  font-weight:600;
}
.link-more:hover{color:#fff;}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  overflow:hidden;
  padding:56px 0 48px;
  border-bottom:1px solid var(--line);
}
.hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  opacity:.16;
}
.hero::after{
  content:"";
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:32px 32px;
  opacity:.5;
  pointer-events:none;
}
.hero .container{position:relative;z-index:2;}
.hero-grid{
  display:grid;
  gap:36px;
  align-items:center;
}
@media (min-width:1024px){
  .hero{padding:88px 0 72px;}
  .hero-grid{grid-template-columns:7fr 5fr;gap:56px;}
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 12px;
  border-radius:6px;
  background:rgba(255,62,127,.14);
  color:var(--secondary);
  font-size:13px;
  font-weight:700;
  margin-bottom:18px;
}
.hero h1{margin-bottom:18px;}
.hero h1 .hl{
  background:var(--grad);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-sub{
  font-size:17px;
  color:var(--text-2);
  margin-bottom:14px;
}
.hero-lead{
  color:var(--text-2);
  font-size:15px;
  margin-bottom:26px;
  max-width:620px;
}
.hero-actions{
  display:flex;flex-wrap:wrap;gap:14px;
  margin-bottom:14px;
}
.hero-note{font-size:13px;color:var(--text-3);}
.hero-media{position:relative;}
.hero-media img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:var(--card);
}
.hero-float{
  position:absolute;
  right:-6px;bottom:-22px;
  width:190px;
  padding:8px;
  border-radius:14px;
  background:var(--card);
  border:1px solid var(--line);
  box-shadow:0 14px 34px rgba(0,0,0,.55);
  transform:rotate(-2deg);
}
.hero-float img{
  aspect-ratio:4/3;
  border-radius:10px;
  border:0;
}
.hero-float span{
  display:block;
  padding:8px 4px 2px;
  font-size:12px;
  color:var(--accent);
  font-weight:800;
  font-variant-numeric:tabular-nums;
  text-align:center;
}
@media (max-width:1023px){
  .hero-float{
    position:static;
    width:100%;
    margin-top:14px;
    transform:none;
  }
}

/* ---------- 速览数据卡 ---------- */
.stat-grid{
  display:grid;
  gap:20px;
  grid-template-columns:1fr;
}
@media (min-width:640px){.stat-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.stat-grid{grid-template-columns:repeat(4,1fr);}}
.stat-card{
  position:relative;
  padding:22px;
  border-radius:var(--radius-card);
  background:var(--card);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  transition:transform .16s var(--ease),box-shadow .16s var(--ease),border-color .16s var(--ease);
}
.stat-card:hover{
  transform:translateY(-2px);
  border-color:rgba(0,216,180,.4);
  box-shadow:var(--shadow-hover);
}
.stat-label{
  font-size:13px;
  color:var(--text-3);
  margin-bottom:8px;
}
.stat-value{
  font-size:26px;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  font-weight:800;
  letter-spacing:-.01em;
}
.stat-desc{
  margin-top:8px;
  font-size:13px;
  color:var(--text-2);
  line-height:1.7;
}
.stat-tag{
  display:inline-block;
  margin-top:12px;
  padding:3px 9px;
  border-radius:6px;
  background:rgba(0,216,180,.12);
  color:var(--primary);
  font-size:12px;
  font-weight:700;
}

/* ---------- 时间轴 ---------- */
.timeline-wrap{
  position:relative;
  padding-left:28px;
}
.timeline-wrap::before{
  content:"";
  position:absolute;
  left:6px;top:6px;bottom:6px;
  width:2px;
  background:linear-gradient(180deg,rgba(0,216,180,.9),rgba(255,62,127,.35));
  border-radius:2px;
}
.tl-item{
  position:relative;
  padding:0 0 30px 8px;
}
.tl-item:last-child{padding-bottom:0;}
.tl-dot{
  position:absolute;
  left:-28px;top:8px;
  width:12px;height:12px;
  border-radius:50%;
  background:var(--base);
  border:2px solid var(--primary);
  box-shadow:0 0 10px rgba(0,216,180,.6);
}
.tl-item.is-pending .tl-dot{border-color:var(--accent);box-shadow:0 0 10px rgba(255,165,31,.55);}
.tl-body{
  padding:20px 22px;
  border-radius:var(--radius-card);
  background:var(--base-2);
  border:1px solid var(--line);
  transition:transform .16s var(--ease),box-shadow .16s var(--ease),border-color .16s var(--ease);
}
.tl-body:hover{
  transform:translateY(-2px);
  border-color:rgba(0,216,180,.36);
  box-shadow:var(--shadow-hover);
}
.tl-head{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  margin-bottom:10px;
}
.tl-version{
  font-size:26px;
  font-weight:800;
  color:var(--text);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;
}
.tl-date{
  font-size:13px;
  color:var(--text-2);
  font-variant-numeric:tabular-nums;
}
.tl-tag{
  padding:3px 9px;
  border-radius:6px;
  font-size:12px;
  font-weight:700;
  background:rgba(0,216,180,.12);
  color:var(--primary);
}
.tl-tag.warn{background:rgba(255,165,31,.14);color:var(--accent);}
.tl-desc{
  font-size:15px;
  color:var(--text-2);
  line-height:1.8;
}
.tl-desc + .tl-desc{margin-top:6px;}
.tl-meta{
  display:flex;flex-wrap:wrap;gap:8px;
  margin-top:14px;
}
.chip{
  padding:3px 10px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  color:var(--text-3);
  font-size:12px;
}

/* ---------- 步骤流程 ---------- */
.step-list{display:grid;gap:0;}
.step-item{
  display:flex;gap:18px;
  padding:24px 0;
  border-top:1px solid var(--line);
  transition:transform .16s var(--ease);
}
.step-item:last-child{border-bottom:1px solid var(--line);}
.step-no{
  flex:none;
  font-size:34px;
  line-height:1;
  font-weight:800;
  font-variant-numeric:tabular-nums;
  color:transparent;
  -webkit-text-stroke:1.5px var(--accent);
  width:64px;
}
.step-title{font-size:18px;margin-bottom:6px;}
.step-text{font-size:15px;color:var(--text-2);}
@media (min-width:1024px){
  .step-list{max-width:900px;}
  .step-item:nth-child(even){margin-left:40px;}
}

/* ---------- FAQ ---------- */
.faq-list{
  border-radius:var(--radius-card);
  background:var(--base-2);
  border:1px solid var(--line);
  overflow:hidden;
}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;
  padding:18px 22px;
  cursor:pointer;
  font-size:16px;
  font-weight:700;
  list-style:none;
  transition:background .16s var(--ease),color .16s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{background:rgba(255,255,255,.03);color:var(--primary);}
.faq-icon{
  position:relative;
  width:18px;height:18px;
  flex:none;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--primary);border-radius:2px;
}
.faq-icon::before{left:0;top:8px;width:18px;height:2px;}
.faq-icon::after{left:8px;top:0;width:2px;height:18px;transition:transform .18s var(--ease);}
.faq-item[open] .faq-icon::after{transform:scaleY(0);}
.faq-answer{
  padding:0 22px 20px;
  font-size:15px;
  color:var(--text-2);
  line-height:1.85;
}
.faq-item[open]{
  border-left:3px solid var(--primary);
}
.faq-item[open] summary{padding-left:19px;}
.faq-item[open] .faq-answer{padding-left:19px;}

/* ---------- CTA 条 ---------- */
.cta-bar{
  display:flex;flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:26px 28px;
  border-radius:var(--radius-card);
  background:var(--card);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  position:relative;
  overflow:hidden;
}
.cta-bar::before{
  content:"";
  position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--grad);
}
.cta-bar h3{margin-bottom:6px;}
.cta-bar p{font-size:14px;color:var(--text-2);}
.cta-bar .cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- 面包屑 ---------- */
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;
  color:var(--text-3);
  padding:18px 0 0;
}
.crumb a{color:var(--text-2);}
.crumb a:hover{color:var(--primary);}
.crumb .sep{color:var(--text-3);opacity:.7;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:56px;
  background:var(--base-2);
  border-top:1px solid var(--line);
}
.footer-grid{
  display:grid;
  gap:32px;
  padding:52px 0 40px;
  grid-template-columns:1fr;
}
@media (min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr;}}
.footer-brand p{
  margin-top:14px;
  font-size:14px;
  color:var(--text-2);
  max-width:320px;
}
.socials{display:flex;gap:10px;margin-top:18px;}
.socials a{
  display:grid;place-items:center;
  width:38px;height:38px;
  border-radius:10px;
  background:var(--card);
  border:1px solid var(--line);
  color:var(--text-2);
  transition:transform .16s var(--ease),color .16s var(--ease),border-color .16s var(--ease);
}
.socials a:hover{
  transform:translateY(-2px);
  color:var(--primary);
  border-color:rgba(0,216,180,.4);
}
.site-footer h4{
  font-size:15px;
  margin-bottom:16px;
  color:var(--text);
}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{
  font-size:14px;
  color:var(--text-2);
}
.footer-links a:hover{color:var(--primary);}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:16px 0;
}
.footer-bottom .container{
  display:flex;flex-wrap:wrap;gap:10px;
  justify-content:space-between;
  font-size:12.5px;
  color:var(--text-3);
}
@media (max-width:640px){
  .cta-bar{padding:22px 20px;}
  .tl-version{font-size:22px;}
  .step-no{font-size:28px;width:50px;}
}

/* roulang page: category2 */
:root{
    --primary:#00D8B4;
    --secondary:#FF3E7F;
    --accent:#FFA51F;
    --base:#0A0915;
    --base-2:#12101F;
    --card:#1A1730;
    --card-2:#221E3D;
    --line:rgba(255,255,255,.07);
    --line-strong:rgba(255,255,255,.14);
    --t1:#F5F3FF;
    --t2:#B0AACB;
    --t3:#7C7595;
    --ok:#2FD07A;
    --warn:#FFA51F;
    --err:#FF5A5F;
    --r-card:16px;
    --r-btn:10px;
    --r-img:12px;
    --shadow:0 8px 24px rgba(0,0,0,.45);
    --shadow-glow:0 12px 32px rgba(0,216,180,.16);
    --max:1200px;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--base);
    color:var(--t1);
    font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  body::before{
    content:"";
    position:fixed;
    inset:0;
    pointer-events:none;
    z-index:0;
    background-image:linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
    background-size:32px 32px;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:800;letter-spacing:-.01em;}
  p{margin:0;}
  ul{margin:0;padding:0;list-style:none;}
  button,input{font-family:inherit;}
  :focus-visible{outline:2px solid rgba(0,216,180,.6);outline-offset:2px;}
  .num{font-variant-numeric:tabular-nums;}
  .container{width:100%;max-width:var(--max);margin:0 auto;padding:0 20px;position:relative;z-index:1;}
  @media (min-width:1024px){.container{padding:0 32px;}}

  /* ---------- 顶部状态条 ---------- */
  .ticker{
    position:relative;
    background:linear-gradient(90deg,rgba(0,216,180,.12),rgba(255,62,127,.12));
    border-bottom:1px solid var(--line);
    font-size:13px;
  }
  .ticker-inner{display:flex;align-items:center;gap:14px;justify-content:space-between;min-height:44px;padding:6px 0;flex-wrap:wrap;}
  .ticker-left{display:flex;align-items:center;gap:10px;color:var(--t2);}
  .ticker-tag{background:var(--accent);color:#1A1206;font-weight:800;font-size:12px;padding:2px 8px;border-radius:6px;letter-spacing:.04em;}
  .ticker-right a{color:var(--primary);font-weight:600;font-size:13px;}
  .ticker-right a:hover{color:#5CF2D8;}
  .ticker::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;background:linear-gradient(90deg,var(--primary),var(--secondary));opacity:.7;}

  /* ---------- 导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(10,9,21,.82);
    backdrop-filter:blur(12px);
    border-bottom:1px solid transparent;
    transition:border-color .2s ease,background .2s ease;
  }
  .site-header.is-scrolled{border-bottom-color:var(--line);background:rgba(10,9,21,.94);}
  .header-inner{display:flex;align-items:center;gap:24px;min-height:72px;}
  .brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
  .brand-mark{
    width:38px;height:38px;border-radius:11px;
    display:grid;place-items:center;
    font-weight:900;font-size:15px;letter-spacing:-.02em;
    color:#061A16;
    background:linear-gradient(135deg,var(--primary),#38F0CE);
    box-shadow:0 6px 18px rgba(0,216,180,.28);
  }
  .brand-text{font-weight:800;font-size:18px;letter-spacing:-.01em;white-space:nowrap;}
  .nav-links{display:none;align-items:center;gap:30px;margin-left:12px;}
  .nav-link{position:relative;color:var(--t2);font-size:15px;font-weight:600;padding:6px 0;transition:color .15s ease;}
  .nav-link:hover{color:var(--t1);}
  .nav-link.active{color:var(--t1);}
  .nav-link.active::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:2px;background:var(--primary);}
  .header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
  .status-badge{
    display:none;align-items:center;gap:6px;
    background:var(--accent);color:#1A1206;
    font-size:12px;font-weight:800;padding:5px 10px;border-radius:6px;white-space:nowrap;
  }
  .status-badge .dot{width:6px;height:6px;border-radius:50%;background:#1A1206;animation:pulse 1.6s infinite;}
  @keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:44px;padding:0 20px;border-radius:var(--r-btn);
    font-size:15px;font-weight:700;letter-spacing:.01em;
    border:1px solid transparent;cursor:pointer;
    transition:transform .15s ease-out,box-shadow .18s ease-out,background .18s ease-out,color .18s ease-out,border-color .18s ease-out;
  }
  .btn-primary{background:var(--primary);color:#04231D;}
  .btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(0,216,180,.3);background:#25E4C5;}
  .btn-primary:active{transform:translateY(0);box-shadow:none;}
  .btn-outline{border-color:var(--secondary);color:#FFB4D0;background:transparent;}
  .btn-outline:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(255,62,127,.22);background:rgba(255,62,127,.1);color:#FFD9E8;}
  .btn-outline:active{transform:translateY(0);box-shadow:none;}
  .btn-pill{border-radius:999px;padding:0 22px;}
  .btn-sm{height:38px;padding:0 16px;font-size:14px;}
  .btn:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}
  .hamburger{
    display:grid;place-items:center;gap:4px;
    width:42px;height:42px;border-radius:10px;
    background:var(--card);border:1px solid var(--line);
    cursor:pointer;padding:0;
  }
  .hamburger span{display:block;width:18px;height:2px;background:var(--t1);border-radius:2px;}
  @media (min-width:1024px){
    .nav-links{display:flex;}
    .status-badge{display:inline-flex;}
    .hamburger{display:none;}
  }

  /* ---------- 移动抽屉 ---------- */
  .drawer{
    position:fixed;inset:0;z-index:80;
    background:rgba(6,5,14,.96);
    transform:translateX(-100%);
    transition:transform .28s cubic-bezier(.4,0,.2,1);
    display:flex;flex-direction:column;
    padding:20px;
  }
  .drawer.open{transform:translateX(0);}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
  .drawer-close{width:40px;height:40px;border-radius:10px;background:var(--card);border:1px solid var(--line);color:var(--t1);font-size:18px;cursor:pointer;}
  .drawer-nav{display:flex;flex-direction:column;border-top:1px solid var(--line);}
  .drawer-nav a{display:flex;align-items:center;height:48px;border-bottom:1px solid var(--line);color:var(--t2);font-size:16px;font-weight:600;}
  .drawer-nav a.active{color:var(--primary);}
  .drawer-foot{margin-top:auto;padding-top:20px;}

  /* ---------- 通用区块 ---------- */
  .section{padding:56px 0;position:relative;}
  @media (min-width:768px){.section{padding:72px 0;}}
  @media (min-width:1024px){.section{padding:96px 0;}}
  .section-head{max-width:760px;margin-bottom:32px;}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:12px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;
    color:var(--primary);margin-bottom:14px;
  }
  .eyebrow::before{content:"";width:22px;height:2px;background:linear-gradient(90deg,var(--primary),var(--secondary));border-radius:2px;}
  .h2{font-size:22px;}
  @media (min-width:768px){.h2{font-size:32px;}}
  @media (min-width:1024px){.h2{font-size:34px;}}
  .lead{color:var(--t2);font-size:16px;margin-top:14px;}
  .divider-grad{height:1px;background:linear-gradient(90deg,var(--primary),var(--secondary));opacity:.55;border:0;margin:0;}

  /* ---------- Hero ---------- */
  .hero{padding:48px 0 56px;position:relative;overflow:hidden;}
  @media (min-width:1024px){.hero{padding:72px 0 88px;}}
  .hero::before{
    content:"";position:absolute;top:-160px;right:-120px;width:520px;height:520px;border-radius:50%;
    background:radial-gradient(circle,rgba(0,216,180,.22),transparent 66%);
    pointer-events:none;
  }
  .hero::after{
    content:"";position:absolute;bottom:-220px;left:-140px;width:460px;height:460px;border-radius:50%;
    background:radial-gradient(circle,rgba(255,62,127,.16),transparent 68%);
    pointer-events:none;
  }
  .hero-grid{display:grid;gap:36px;align-items:center;}
  @media (min-width:1024px){.hero-grid{grid-template-columns:7fr 5fr;gap:56px;}}
  .hero h1{font-size:30px;line-height:1.28;}
  @media (min-width:768px){.hero h1{font-size:40px;}}
  @media (min-width:1024px){.hero h1{font-size:50px;line-height:1.16;}}
  .hero h1 em{font-style:normal;color:var(--primary);}
  .hero-sub{color:var(--t2);font-size:17px;margin-top:18px;max-width:560px;}
  .hero-ctas{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
  .hero-note{font-size:13px;color:var(--t3);margin-top:14px;}
  .hero-visual{position:relative;}
  .hero-img{
    width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--r-card);
    border:1px solid var(--line);background:var(--card);box-shadow:var(--shadow);
  }
  .hero-float{
    position:absolute;right:-8px;bottom:-18px;width:44%;
    border-radius:var(--r-img);border:1px solid var(--line-strong);
    background:var(--card);box-shadow:0 16px 40px rgba(0,0,0,.55);
    transform:rotate(-2deg);aspect-ratio:4/3;object-fit:cover;
  }
  .hero-metrics{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:32px;}
  @media (min-width:768px){.hero-metrics{grid-template-columns:repeat(4,1fr);}}
  .metric{
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
    padding:16px 18px;transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease;
  }
  .metric:hover{border-color:rgba(0,216,180,.4);box-shadow:var(--shadow-glow);transform:translateY(-2px);}
  .metric b{display:block;font-size:26px;font-weight:900;color:var(--primary);line-height:1.2;}
  .metric span{font-size:13px;color:var(--t3);}

  /* ---------- 指南主体布局 ---------- */
  .guide-layout{display:grid;gap:32px;}
  @media (min-width:1024px){.guide-layout{grid-template-columns:266px 1fr;gap:48px;align-items:start;}}
  .toc-wrap{position:relative;}
  @media (min-width:1024px){.toc{position:sticky;top:104px;}}
  .toc-title{font-size:12px;font-weight:800;letter-spacing:.14em;color:var(--t3);margin-bottom:12px;padding-left:14px;}
  .toc-list{display:flex;gap:8px;overflow-x:auto;padding-bottom:6px;scrollbar-width:thin;}
  @media (min-width:1024px){.toc-list{display:block;overflow:visible;padding-bottom:0;}}
  .toc-link{
    display:block;white-space:nowrap;
    padding:11px 16px;border-radius:0 10px 10px 0;
    border-left:2px solid var(--line);
    color:var(--t2);font-size:14px;font-weight:600;
    transition:color .15s ease,background .18s ease,border-color .18s ease;
  }
  .toc-link:hover{color:var(--t1);background:rgba(255,255,255,.03);}
  .toc-link.active{
    border-left-color:var(--primary);color:var(--t1);
    background:linear-gradient(90deg,rgba(0,216,180,.12),transparent);
  }
  .toc-hint{
    margin-top:18px;padding:16px;border-radius:var(--r-card);
    background:var(--card);border:1px solid var(--line);font-size:13px;color:var(--t2);
  }
  @media (max-width:1023px){.toc-hint{display:none;}}

  .guide-block{
    background:var(--base-2);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    padding:24px;
    margin-bottom:24px;
    scroll-margin-top:110px;
    transition:border-color .2s ease;
  }
  @media (min-width:768px){.guide-block{padding:32px;}}
  .guide-block:hover{border-color:rgba(255,255,255,.14);}
  .block-head{display:flex;align-items:flex-start;gap:14px;margin-bottom:16px;}
  .block-index{
    flex-shrink:0;width:40px;height:40px;border-radius:11px;
    display:grid;place-items:center;font-weight:900;font-size:15px;
    color:var(--accent);border:1.5px solid rgba(255,165,31,.5);
    background:rgba(255,165,31,.08);
  }
  .block-head h3{font-size:19px;}
  @media (min-width:768px){.block-head h3{font-size:21px;}}
  .block-head p{color:var(--t3);font-size:13px;margin-top:4px;}
  .guide-block > p{color:var(--t2);font-size:15.5px;}
  .guide-block > p + p{margin-top:12px;}
  .point-grid{display:grid;gap:16px;margin-top:22px;}
  @media (min-width:768px){.point-grid{grid-template-columns:repeat(2,1fr);gap:18px;}}
  .point-card{
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-img);
    padding:18px;transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease;
  }
  .point-card:hover{border-color:rgba(0,216,180,.4);box-shadow:var(--shadow-glow);transform:translateY(-2px);}
  @media (min-width:768px){.point-card:nth-child(even){transform:translateY(20px);} .point-card:nth-child(even):hover{transform:translateY(18px);}}
  .point-card h4{font-size:15px;display:flex;align-items:center;gap:8px;}
  .point-card h4 i{color:var(--primary);font-size:13px;}
  .point-card p{font-size:14px;color:var(--t2);margin-top:8px;}
  .tip-line{
    display:flex;gap:10px;align-items:flex-start;
    margin-top:22px;padding:14px 16px;border-radius:var(--r-img);
    background:rgba(0,216,180,.07);border-left:3px solid var(--primary);
    font-size:14px;color:var(--t2);
  }
  .tip-line i{color:var(--primary);margin-top:4px;}
  .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
  .tag{
    font-size:12px;font-weight:700;padding:4px 10px;border-radius:6px;
    background:rgba(255,62,127,.14);color:#FF9CC2;border:1px solid rgba(255,62,127,.24);
  }
  .tag-mint{background:rgba(0,216,180,.12);color:#6FF0DA;border-color:rgba(0,216,180,.26);}

  /* ---------- 流程 ---------- */
  .flow{display:grid;gap:18px;}
  @media (min-width:768px){.flow{grid-template-columns:repeat(2,1fr);}}
  @media (min-width:1024px){.flow{grid-template-columns:repeat(4,1fr);}}
  .flow-step{
    position:relative;background:var(--card);border:1px solid var(--line);
    border-radius:var(--r-card);padding:22px;
    transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  }
  .flow-step:hover{transform:translateY(-3px);box-shadow:var(--shadow-glow);border-color:rgba(0,216,180,.35);}
  .flow-num{font-size:38px;font-weight:900;line-height:1;color:transparent;-webkit-text-stroke:1.4px rgba(255,165,31,.65);}
  .flow-step h4{margin-top:14px;font-size:16px;}
  .flow-step p{margin-top:8px;font-size:14px;color:var(--t2);}
  .flow-line{height:2px;border-radius:2px;background:linear-gradient(90deg,var(--primary),var(--secondary));opacity:.5;margin-bottom:24px;}

  /* ---------- 场景对照 ---------- */
  .scene-grid{display:grid;gap:20px;}
  @media (min-width:768px){.scene-grid{grid-template-columns:repeat(2,1fr);}}
  @media (min-width:1280px){.scene-grid{grid-template-columns:repeat(3,1fr);}}
  .scene-card{
    background:var(--base-2);border:1px solid var(--line);border-radius:var(--r-card);
    overflow:hidden;transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  }
  .scene-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-glow);border-color:rgba(0,216,180,.35);}
  .scene-card img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--card);border-radius:0;}
  .scene-body{padding:20px;}
  .scene-body h3{font-size:17px;}
  .scene-body p{font-size:14px;color:var(--t2);margin-top:8px;}
  .scene-meta{display:flex;align-items:center;gap:10px;margin-top:14px;font-size:12.5px;color:var(--t3);}
  .scene-meta .badge{background:rgba(0,216,180,.12);color:#6FF0DA;border:1px solid rgba(0,216,180,.26);padding:3px 9px;border-radius:6px;font-weight:700;}

  /* ---------- FAQ ---------- */
  .faq-list{border-top:1px solid var(--line);}
  details.faq-item{border-bottom:1px solid var(--line);}
  details.faq-item > summary{
    list-style:none;cursor:pointer;
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:18px 4px;font-size:15.5px;font-weight:700;color:var(--t1);
    transition:color .15s ease;
  }
  details.faq-item > summary::-webkit-details-marker{display:none;}
  details.faq-item > summary::after{
    content:"+";flex-shrink:0;width:26px;height:26px;border-radius:8px;
    display:grid;place-items:center;font-weight:800;font-size:16px;
    color:var(--primary);background:rgba(0,216,180,.1);border:1px solid rgba(0,216,180,.24);
    transition:transform .2s ease;
  }
  details.faq-item[open] > summary{color:var(--primary);}
  details.faq-item[open] > summary::after{content:"−";}
  details.faq-item > summary:hover{color:var(--primary);}
  .faq-body{padding:0 4px 20px;color:var(--t2);font-size:15px;line-height:1.85;border-left:0;transition:border-color .2s ease;}
  details.faq-item[open] .faq-body{border-left:3px solid rgba(0,216,180,.5);padding-left:16px;}

  /* ---------- CTA 紧凑条 ---------- */
  .cta-strip{
    background:linear-gradient(135deg,rgba(0,216,180,.14),rgba(255,62,127,.12)),var(--base-2);
    border:1px solid var(--line-strong);border-radius:var(--r-card);
    padding:28px 24px;display:grid;gap:20px;align-items:center;
  }
  @media (min-width:768px){.cta-strip{grid-template-columns:1fr auto;padding:32px 36px;}}
  .cta-strip h2{font-size:20px;}
  @media (min-width:768px){.cta-strip h2{font-size:24px;}}
  .cta-strip p{color:var(--t2);font-size:14.5px;margin-top:8px;}

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--base-2);border-top:1px solid var(--line);margin-top:24px;}
  .footer-grid{display:grid;gap:32px;padding:52px 0 36px;}
  @media (min-width:768px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr;}}
  .footer-brand .brand{margin-bottom:14px;}
  .footer-brand p{color:var(--t2);font-size:14px;max-width:320px;}
  .socials{display:flex;gap:10px;margin-top:18px;}
  .socials a{
    width:38px;height:38px;border-radius:10px;display:grid;place-items:center;
    background:var(--card);border:1px solid var(--line);color:var(--t2);
    transition:color .15s ease,border-color .18s ease,transform .18s ease;
  }
  .socials a:hover{color:var(--primary);border-color:rgba(0,216,180,.45);transform:translateY(-2px);}
  .site-footer h4{font-size:14px;letter-spacing:.06em;color:var(--t1);margin-bottom:16px;}
  .footer-links{display:flex;flex-direction:column;gap:11px;}
  .footer-links a{color:var(--t2);font-size:14px;transition:color .15s ease;}
  .footer-links a:hover{color:var(--primary);}
  .footer-bottom{border-top:1px solid var(--line);padding:18px 0;}
  .footer-bottom .container{display:flex;flex-wrap:wrap;gap:8px;justify-content:space-between;color:var(--t3);font-size:12.5px;}

  @media (prefers-reduced-motion:reduce){
    *{animation:none!important;transition:none!important;}
  }

/* roulang page: category3 */
:root{
  --primary:#00D8B4;
  --secondary:#FF3E7F;
  --accent:#FFA51F;
  --base:#0A0915;
  --panel:#12101F;
  --card:#1A1730;
  --line:rgba(255,255,255,.07);
  --text:#F5F3FF;
  --muted:#B0AACB;
  --weak:#7C7595;
  --ok:#2FD07A;
  --warn:#FFA51F;
  --err:#FF5A5F;
  --radius-card:16px;
  --radius-btn:10px;
  --shadow:0 8px 24px rgba(0,0,0,.45);
  --shadow-hover:0 0 0 1px rgba(0,216,180,.4),0 12px 32px rgba(0,216,180,.16);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
  background:var(--base);
  color:var(--text);
  line-height:1.8;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:12px}
a{color:inherit;text-decoration:none;transition:color .15s var(--ease),opacity .15s var(--ease)}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.3;letter-spacing:-.01em;font-weight:800}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid rgba(0,216,180,.75);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.container{padding:0 32px}}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,9,21,.86);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line);background:rgba(10,9,21,.94)}
.header-inner{display:flex;align-items:center;gap:20px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  display:grid;place-items:center;
  font-weight:900;font-size:14px;letter-spacing:.02em;
  color:#0A0915;
  background:linear-gradient(45deg,var(--primary),var(--secondary));
}
.brand-text{font-weight:800;font-size:17px;letter-spacing:-.01em;white-space:nowrap}
.nav-links{display:none;align-items:center;gap:4px;margin-left:12px}
.nav-link{
  position:relative;padding:8px 12px;font-size:15px;color:var(--muted);
  border-radius:8px;white-space:nowrap;
}
.nav-link:hover{color:var(--text)}
.nav-link.active{color:var(--text);font-weight:700}
.nav-link.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:linear-gradient(45deg,var(--primary),var(--secondary));border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.status-badge{
  display:none;align-items:center;gap:6px;
  background:var(--accent);color:#0A0915;
  font-size:12px;font-weight:800;padding:5px 10px;border-radius:6px;
  letter-spacing:.02em;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:700;letter-spacing:.01em;
  transition:transform .15s var(--ease),box-shadow .15s var(--ease),background .15s var(--ease),color .15s var(--ease),border-color .15s var(--ease);
}
.btn-primary{background:var(--primary);color:#0A0915;box-shadow:0 6px 18px rgba(0,216,180,.22)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(0,216,180,.34);background:#16e6c2}
.btn-outline{border:1px solid var(--secondary);color:#FFD7E6}
.btn-outline:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(255,62,127,.25);background:rgba(255,62,127,.1)}
.btn-ghost{border:1px solid var(--line);color:var(--muted)}
.btn-ghost:hover{color:var(--text);border-color:rgba(255,255,255,.2);transform:translateY(-2px)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-pill{border-radius:999px}
.btn:disabled,.btn[disabled]{opacity:.45;pointer-events:none}
.menu-toggle{
  width:42px;height:42px;border-radius:10px;border:1px solid var(--line);
  display:grid;place-content:center;gap:4px;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease)}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.mobile-drawer{
  display:none;border-top:1px solid var(--line);background:var(--panel);
  padding:12px 20px 20px;
}
.mobile-drawer.open{display:block}
.mobile-drawer a{
  display:block;line-height:48px;font-size:16px;color:var(--muted);
  border-bottom:1px solid var(--line);
}
.mobile-drawer a.active{color:var(--primary);font-weight:700}
.mobile-drawer .btn{width:100%;margin-top:16px}
@media (min-width:1024px){
  .nav-links{display:flex}
  .status-badge{display:inline-flex}
  .menu-toggle{display:none}
  .header-inner{height:76px}
}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:var(--base);
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.32;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(900px 420px at 12% 10%,rgba(0,216,180,.18),transparent 62%),
    radial-gradient(700px 380px at 92% 82%,rgba(255,62,127,.16),transparent 66%),
    linear-gradient(180deg,rgba(10,9,21,.72) 0%,rgba(10,9,21,.92) 62%,var(--base) 100%);
}
.page-hero .grid-texture{
  position:absolute;inset:0;opacity:.05;
  background-image:linear-gradient(rgba(255,255,255,.6) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.6) 1px,transparent 1px);
  background-size:32px 32px;
}
.hero-inner{position:relative;z-index:2;padding:56px 0 48px}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--weak);margin-bottom:18px;flex-wrap:wrap}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:rgba(255,255,255,.22)}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;color:#0A0915;background:var(--accent);
  padding:5px 12px;border-radius:6px;margin-bottom:18px;
}
.page-hero h1{
  font-size:30px;max-width:900px;
  background:none;
}
.page-hero h1 .hl{
  background:linear-gradient(45deg,var(--primary),var(--secondary));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{color:var(--muted);font-size:16px;max-width:760px;margin-top:18px}
.hero-lead + .hero-lead{margin-top:12px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-note{font-size:13px;color:var(--weak);margin-top:14px}
@media (min-width:1024px){
  .hero-inner{padding:84px 0 72px}
  .page-hero h1{font-size:52px}
  .hero-lead{font-size:17px}
}

/* ---------- 通用板块 ---------- */
.section{padding:56px 0}
.section-tight{padding:44px 0}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px}
.section-head h2{font-size:22px;display:flex;align-items:center;gap:12px}
.section-head h2::before{
  content:"";width:4px;height:22px;border-radius:3px;
  background:linear-gradient(180deg,var(--primary),var(--secondary));
}
.section-head p{color:var(--weak);font-size:14px;margin-top:8px}
.section-link{font-size:14px;color:var(--primary);font-weight:700}
.section-link:hover{color:#16e6c2}
@media (min-width:1024px){
  .section{padding:96px 0}
  .section-tight{padding:72px 0}
  .section-head h2{font-size:34px}
  .section-head h2::before{height:28px}
}

/* ---------- 筛选条 ---------- */
.filter-bar{
  display:flex;gap:10px;overflow-x:auto;padding:16px 0 4px;
  border-top:1px solid var(--line);margin-top:32px;
  scrollbar-width:thin;
}
.filter-bar::-webkit-scrollbar{height:6px}
.filter-bar::-webkit-scrollbar-thumb{background:rgba(255,255,255,.12);border-radius:6px}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:999px;font-size:13.5px;font-weight:600;
  color:var(--muted);border:1px solid var(--line);background:rgba(26,23,48,.6);
  transition:all .15s var(--ease);
}
.chip .dot{width:6px;height:6px;border-radius:50%;background:var(--weak)}
.chip.is-active{color:#0A0915;background:var(--primary);border-color:var(--primary)}
.chip.is-active .dot{background:#0A0915}
.chip:hover{border-color:rgba(0,216,180,.5);color:var(--text)}
.chip.is-active:hover{color:#0A0915}
.chip .count{font-size:12px;color:var(--weak);font-variant-numeric:tabular-nums}
.chip.is-active .count{color:rgba(10,9,21,.7)}
.chip-warm{color:#FFE0B8;border-color:rgba(255,165,31,.35);background:rgba(255,165,31,.08)}
.chip-warm .dot{background:var(--accent)}

/* ---------- 图墙 ---------- */
.gallery{
  display:grid;grid-template-columns:1fr;grid-auto-rows:220px;gap:16px;
}
.tile{
  position:relative;border-radius:var(--radius-card);overflow:hidden;
  background:var(--card);box-shadow:var(--shadow);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease);
}
.tile img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .35s var(--ease)}
.tile::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,9,21,.1) 0%,rgba(10,9,21,.55) 52%,rgba(10,9,21,.92) 100%);
  transition:opacity .2s var(--ease);
}
.tile:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.tile:hover img{transform:scale(1.03)}
.tile-body{position:absolute;left:0;right:0;bottom:0;z-index:3;padding:16px}
.tile-body h3{font-size:16px;margin-bottom:4px}
.tile-body p{font-size:13px;color:var(--muted);line-height:1.6}
.tile-tag{
  position:absolute;top:12px;left:12px;z-index:3;
  font-size:11.5px;font-weight:700;padding:4px 9px;border-radius:6px;
  background:rgba(255,62,127,.16);color:#FFB4CE;border:1px solid rgba(255,62,127,.35);
  backdrop-filter:blur(4px);
}
.tile-status{
  position:absolute;right:12px;bottom:14px;z-index:4;
  display:inline-flex;align-items:center;gap:6px;
  background:var(--accent);color:#0A0915;font-weight:800;font-size:11.5px;
  padding:5px 10px;border-radius:6px;font-variant-numeric:tabular-nums;
  box-shadow:0 6px 16px rgba(255,165,31,.28);
}
.tile-status.is-live{background:var(--primary);box-shadow:0 6px 16px rgba(0,216,180,.28)}
.tile-status.is-soon{background:rgba(255,255,255,.14);color:#E8E4FF;border:1px solid rgba(255,255,255,.2)}
@media (min-width:640px){
  .gallery{grid-template-columns:repeat(2,1fr);grid-auto-rows:150px;gap:18px}
  .tile.span-2{grid-row:span 2}
  .tile.span-3{grid-row:span 3}
}
@media (min-width:1024px){
  .gallery{grid-template-columns:repeat(3,1fr);grid-auto-rows:150px;gap:20px}
}
@media (min-width:1280px){
  .gallery{grid-template-columns:repeat(4,1fr);grid-auto-rows:150px}
}
.gallery-foot{margin-top:22px;font-size:13px;color:var(--weak)}

/* ---------- 领取流程 ---------- */
.steps{display:grid;gap:16px;grid-template-columns:1fr}
.step{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px;position:relative;overflow:hidden;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.step:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.step-no{
  font-size:40px;font-weight:900;line-height:1;letter-spacing:-.03em;
  color:transparent;-webkit-text-stroke:1px rgba(255,165,31,.75);
  font-variant-numeric:tabular-nums;
}
.step h3{font-size:17px;margin:12px 0 8px}
.step p{font-size:14.5px;color:var(--muted)}
@media (min-width:640px){.steps{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.steps{grid-template-columns:repeat(4,1fr);gap:20px}}

/* ---------- 重点活动面板 ---------- */
.hud{
  background:linear-gradient(180deg,var(--panel),rgba(18,16,31,.6));
  border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;
}
.hud-head{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:16px 20px;border-bottom:1px solid var(--line);
  font-size:13px;color:var(--weak);letter-spacing:.04em;
}
.hud-head .live{display:inline-flex;align-items:center;gap:8px;color:var(--primary);font-weight:700}
.hud-head .live i{font-size:8px}
.hud-row{
  display:grid;grid-template-columns:1fr auto;gap:12px 18px;
  padding:18px 20px;border-bottom:1px solid var(--line);
  transition:background .15s var(--ease);
}
.hud-row:last-child{border-bottom:0}
.hud-row:hover{background:rgba(0,216,180,.05)}
.hud-name{font-size:16px;font-weight:700}
.hud-desc{font-size:13.5px;color:var(--weak);margin-top:6px;grid-column:1/-1}
.hud-meta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:10px;grid-column:1/-1;font-size:13px;color:var(--muted)}
.hud-meta .num{color:var(--accent);font-weight:800;font-variant-numeric:tabular-nums}
.hud-reward{
  align-self:start;justify-self:end;
  font-size:13px;font-weight:700;color:#0A0915;background:var(--accent);
  padding:5px 10px;border-radius:6px;white-space:nowrap;
}
@media (min-width:768px){
  .hud-row{grid-template-columns:1fr 160px auto;align-items:center}
  .hud-desc{margin-top:8px}
  .hud-meta{grid-column:1/3;margin-top:8px}
  .hud-reward{grid-row:1/3;grid-column:3}
}

/* ---------- 到账说明 ---------- */
.split{display:grid;gap:24px;grid-template-columns:1fr}
.panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);padding:24px;
}
.panel h3{font-size:18px;margin-bottom:14px}
.check-list li{
  display:flex;gap:10px;font-size:14.5px;color:var(--muted);padding:9px 0;
  border-bottom:1px dashed rgba(255,255,255,.06);
}
.check-list li:last-child{border-bottom:0}
.check-list i{color:var(--primary);margin-top:5px;font-size:13px}
.panel-media{position:relative;border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);min-height:260px}
.panel-media img{width:100%;height:100%;object-fit:cover;border-radius:0}
.panel-media .cap{
  position:absolute;left:14px;bottom:14px;right:14px;
  background:rgba(10,9,21,.78);border:1px solid var(--line);border-radius:12px;
  padding:12px 14px;font-size:13px;color:var(--muted);
}
.panel-media .cap strong{color:var(--text);display:block;margin-bottom:2px;font-size:14px}
@media (min-width:1024px){
  .split{grid-template-columns:1.05fr .95fr;gap:32px;align-items:stretch}
}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 0 18px 14px;font-size:15.5px;font-weight:700;
  border-left:3px solid transparent;transition:color .15s var(--ease),border-color .15s var(--ease);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{color:var(--primary)}
.faq details[open] summary{border-left-color:var(--primary);color:var(--primary)}
.faq summary .icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;display:grid;place-items:center;
  border:1px solid var(--line);color:var(--muted);font-size:13px;
}
.faq details[open] summary .icon{border-color:rgba(0,216,180,.5);color:var(--primary)}
.faq .answer{padding:0 14px 20px;font-size:15px;color:var(--muted);line-height:1.85;max-width:900px}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(45deg,rgba(0,216,180,.12),rgba(255,62,127,.12));
  border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;display:grid;gap:18px;align-items:center;
}
.cta-band h2{font-size:20px}
.cta-band p{font-size:14.5px;color:var(--muted);margin-top:8px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
@media (min-width:900px){
  .cta-band{grid-template-columns:1fr auto;padding:32px 36px}
  .cta-band h2{font-size:26px}
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--panel);border-top:1px solid var(--line);margin-top:20px}
.footer-grid{display:grid;gap:32px;grid-template-columns:1fr;padding:48px 20px 40px}
@media (min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr}}
@media (min-width:1024px){.footer-grid{padding:64px 32px 48px;gap:48px}}
.footer-brand p{color:var(--weak);font-size:14px;margin-top:14px;max-width:320px}
.footer-grid h4{font-size:15px;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--muted)}
.footer-links a:hover{color:var(--primary)}
.socials{display:flex;gap:10px;margin-top:18px}
.socials a{
  width:36px;height:36px;border-radius:10px;display:grid;place-items:center;
  border:1px solid var(--line);color:var(--muted);font-size:14px;
}
.socials a:hover{color:#0A0915;background:var(--primary);border-color:var(--primary)}
.footer-bottom{border-top:1px solid var(--line)}
.footer-bottom .container{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  padding:18px 20px;font-size:12.5px;color:var(--weak);
}
@media (min-width:1024px){.footer-bottom .container{padding:18px 32px}}

/* roulang page: category4 */
:root{
    --primary:#00D8B4;
    --secondary:#FF3E7F;
    --accent:#FFA51F;
    --base:#0A0915;
    --surface:#12101F;
    --card:#1A1730;
    --line:rgba(255,255,255,.07);
    --ink:#F5F3FF;
    --muted:#B0AACB;
    --dim:#7C7595;
    --grad:linear-gradient(45deg,#00D8B4,#FF3E7F);
    --radius-card:16px;
    --radius-btn:10px;
    --shadow-card:0 8px 24px rgba(0,0,0,.45);
    --shadow-glow:0 12px 32px rgba(0,216,180,.16);
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--base);
    color:var(--ink);
    font-family:system-ui,"PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
  }
  body::before{
    content:"";
    position:fixed;
    inset:0;
    background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
    background-size:32px 32px;
    pointer-events:none;
    z-index:0;
    opacity:.6;
  }
  img{max-width:100%;display:block;border-radius:12px;}
  a{color:inherit;text-decoration:none;}
  button,input{font:inherit;color:inherit;}
  a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
    outline:2px solid rgba(0,216,180,.6);
    outline-offset:2px;
    border-radius:6px;
  }
  .container{
    width:100%;
    max-width:1200px;
    margin:0 auto;
    padding:0 20px;
    position:relative;
    z-index:1;
  }
  @media (min-width:1024px){
    .container{padding:0 32px;}
  }

  /* ---------- 顶部状态条 ---------- */
  .topbar{
    background:linear-gradient(90deg,rgba(0,216,180,.10),rgba(255,62,127,.10));
    border-bottom:1px solid var(--line);
    position:relative;
    z-index:3;
  }
  .topbar::after{
    content:"";
    position:absolute;
    left:0;right:0;bottom:0;
    height:1px;
    background:var(--grad);
    opacity:.5;
  }
  .topbar-inner{
    display:flex;
    align-items:center;
    gap:16px;
    min-height:44px;
    font-size:13px;
    color:var(--muted);
  }
  .topbar-tag{
    background:rgba(0,216,180,.14);
    color:var(--primary);
    border:1px solid rgba(0,216,180,.35);
    border-radius:6px;
    padding:2px 8px;
    font-weight:700;
    letter-spacing:.02em;
    white-space:nowrap;
  }
  .topbar-metrics{
    display:flex;
    align-items:center;
    gap:18px;
    margin-left:auto;
  }
  .topbar-metrics span{display:inline-flex;align-items:center;gap:6px;}
  .topbar-metrics strong{
    color:var(--accent);
    font-weight:800;
    font-variant-numeric:tabular-nums;
    font-size:15px;
  }
  .topbar-link{
    color:var(--primary);
    font-weight:600;
    white-space:nowrap;
  }
  .topbar-link:hover{color:var(--secondary);}
  @media (max-width:767px){
    .topbar-metrics span:nth-child(n+3){display:none;}
  }
  @media (max-width:519px){
    .topbar-metrics{display:none;}
  }

  /* ---------- 导航 ---------- */
  .site-header{
    position:sticky;
    top:0;
    z-index:40;
    background:rgba(10,9,21,.92);
    border-bottom:1px solid transparent;
    transition:border-color .18s ease,background .18s ease;
  }
  .site-header.is-scrolled{
    border-bottom-color:var(--line);
    background:rgba(10,9,21,.97);
  }
  .header-inner{
    display:flex;
    align-items:center;
    gap:24px;
    min-height:68px;
  }
  .brand{
    display:inline-flex;
    align-items:center;
    gap:10px;
    font-weight:800;
    letter-spacing:-.01em;
    white-space:nowrap;
  }
  .brand-mark{
    width:34px;height:34px;
    display:grid;place-items:center;
    border-radius:10px;
    background:var(--grad);
    color:#0A0915;
    font-size:13px;
    font-weight:900;
    letter-spacing:.02em;
  }
  .brand-text{
    font-size:17px;
    background:linear-gradient(90deg,#F5F3FF,#B0AACB);
    -webkit-background-clip:text;
    background-clip:text;
    color:transparent;
  }
  .nav-links{
    display:flex;
    align-items:center;
    gap:22px;
    margin-left:12px;
  }
  .nav-link{
    font-size:15px;
    color:var(--muted);
    padding:6px 0;
    border-bottom:2px solid transparent;
    transition:color .16s ease,border-color .16s ease;
  }
  .nav-link:hover{color:var(--ink);border-bottom-color:rgba(0,216,180,.5);}
  .nav-link.active{color:var(--ink);border-bottom-color:var(--primary);font-weight:600;}
  .header-actions{
    display:flex;
    align-items:center;
    gap:12px;
    margin-left:auto;
  }
  .status-badge{
    background:var(--accent);
    color:#0A0915;
    font-size:12px;
    font-weight:800;
    border-radius:6px;
    padding:4px 9px;
    white-space:nowrap;
  }
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    border-radius:var(--radius-btn);
    border:1px solid transparent;
    font-weight:700;
    cursor:pointer;
    transition:transform .16s ease,box-shadow .16s ease,background .16s ease,color .16s ease,border-color .16s ease,opacity .16s ease;
    white-space:nowrap;
  }
  .btn-sm{font-size:14px;padding:8px 16px;}
  .btn-md{font-size:15px;padding:12px 22px;}
  .btn-lg{font-size:16px;padding:14px 28px;}
  .btn-primary{
    background:var(--primary);
    color:#0A0915;
    border-radius:999px;
  }
  .btn-primary:hover{
    transform:translateY(-2px);
    box-shadow:0 10px 26px rgba(0,216,180,.28);
    filter:brightness(1.06);
  }
  .btn-primary:active{transform:translateY(0);box-shadow:none;}
  .btn-outline{
    border-color:var(--secondary);
    color:var(--secondary);
    background:transparent;
    border-radius:999px;
  }
  .btn-outline:hover{
    transform:translateY(-2px);
    background:rgba(255,62,127,.12);
    box-shadow:0 10px 26px rgba(255,62,127,.18);
  }
  .btn-outline:active{transform:translateY(0);box-shadow:none;}
  .btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;}
  .menu-toggle{
    display:none;
    width:42px;height:42px;
    border:1px solid var(--line);
    border-radius:10px;
    background:rgba(255,255,255,.03);
    cursor:pointer;
    padding:0;
    place-items:center;
    gap:4px;
    flex-direction:column;
  }
  .menu-toggle span{
    display:block;
    width:18px;height:2px;
    background:var(--ink);
    border-radius:2px;
  }
  .mobile-drawer{
    display:none;
    border-top:1px solid var(--line);
    background:rgba(18,16,31,.98);
    padding:10px 20px 20px;
  }
  .mobile-drawer.is-open{display:block;}
  .mobile-drawer a{
    display:block;
    line-height:48px;
    font-size:16px;
    color:var(--muted);
    border-bottom:1px solid var(--line);
  }
  .mobile-drawer a.active{color:var(--primary);font-weight:700;}
  .mobile-drawer .btn{width:100%;margin-top:16px;}
  @media (max-width:1023px){
    .nav-links{display:none;}
    .menu-toggle{display:flex;}
    .status-badge{display:none;}
  }
  @media (max-width:519px){
    .header-actions .btn-sm{display:none;}
    .brand-text{font-size:15px;}
  }

  /* ---------- Hero ---------- */
  .hero{
    position:relative;
    padding:64px 0 56px;
    background:
      linear-gradient(180deg,rgba(10,9,21,.72),rgba(10,9,21,.95)),
      url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
    overflow:hidden;
  }
  .hero::after{
    content:"";
    position:absolute;
    width:520px;height:520px;
    right:-160px;top:-180px;
    background:radial-gradient(circle,rgba(0,216,180,.22),transparent 65%);
    pointer-events:none;
  }
  .hero-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:36px;
    align-items:center;
    position:relative;
    z-index:2;
  }
  @media (min-width:1024px){
    .hero-grid{grid-template-columns:7fr 5fr;gap:48px;}
  }
  .eyebrow{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:13px;
    color:var(--primary);
    background:rgba(0,216,180,.10);
    border:1px solid rgba(0,216,180,.3);
    border-radius:999px;
    padding:5px 14px;
    font-weight:600;
  }
  .hero h1{
    font-size:30px;
    line-height:1.28;
    font-weight:800;
    letter-spacing:-.01em;
    margin:20px 0 16px;
  }
  @media (min-width:640px){.hero h1{font-size:38px;}}
  @media (min-width:1024px){.hero h1{font-size:50px;}}
  .hero h1 .hl{
    background:var(--grad);
    -webkit-background-clip:text;
    background-clip:text;
    color:transparent;
  }
  .hero-sub{
    font-size:17px;
    color:var(--muted);
    max-width:560px;
    margin-bottom:26px;
  }
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
  .hero-note{
    font-size:13px;
    color:var(--dim);
    margin-top:14px;
  }
  .hero-visual{position:relative;}
  .hero-visual img{
    border-radius:16px;
    border:1px solid var(--line);
    box-shadow:var(--shadow-card);
    aspect-ratio:16/10;
    object-fit:cover;
    width:100%;
  }
  .floating-card{
    position:absolute;
    right:-8px;
    bottom:-22px;
    width:150px;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:14px;
    padding:12px 14px;
    transform:rotate(-2deg);
    box-shadow:var(--shadow-card);
  }
  .floating-card strong{
    display:block;
    font-size:24px;
    color:var(--accent);
    font-weight:800;
    font-variant-numeric:tabular-nums;
    line-height:1.2;
  }
  .floating-card span{font-size:12px;color:var(--dim);}
  @media (max-width:639px){
    .floating-card{width:120px;right:0;bottom:-16px;}
  }

  /* ---------- 搜索框 ---------- */
  .search-panel{
    margin-top:36px;
    background:rgba(26,23,48,.72);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    padding:22px;
    position:relative;
    z-index:2;
  }
  .search-bar{
    display:flex;
    gap:12px;
    flex-wrap:wrap;
  }
  .search-bar input{
    flex:1 1 260px;
    min-height:48px;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:10px;
    padding:0 16px;
    font-size:15px;
    color:var(--ink);
  }
  .search-bar input::placeholder{color:var(--dim);}
  .search-bar input:focus{
    outline:none;
    border-color:var(--primary);
    box-shadow:0 0 0 2px rgba(0,216,180,.28);
  }
  .search-bar .btn{min-height:48px;padding:0 26px;}
  .quick-tags{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    margin-top:16px;
  }
  .tag{
    font-size:13px;
    color:var(--muted);
    background:rgba(255,62,127,.10);
    border:1px solid rgba(255,62,127,.28);
    border-radius:999px;
    padding:5px 13px;
    transition:color .16s ease,border-color .16s ease,background .16s ease;
  }
  .tag:hover{color:var(--ink);border-color:var(--secondary);background:rgba(255,62,127,.18);}
  .search-hint{font-size:13px;color:var(--dim);margin-top:12px;}

  /* ---------- 通用板块 ---------- */
  section.block{padding:56px 0;}
  @media (min-width:768px){section.block{padding:72px 0;}}
  @media (min-width:1024px){section.block{padding:96px 0;}}
  .section-head{margin-bottom:36px;max-width:760px;}
  .section-head h2{
    font-size:22px;
    font-weight:800;
    letter-spacing:-.01em;
    margin:14px 0 12px;
    position:relative;
    padding-left:14px;
  }
  @media (min-width:1024px){.section-head h2{font-size:32px;}}
  .section-head h2::before{
    content:"";
    position:absolute;
    left:0;top:.18em;bottom:.18em;
    width:4px;
    border-radius:4px;
    background:var(--grad);
  }
  .section-head p{color:var(--muted);font-size:16px;margin:0;}
  .divider-grad{
    height:1px;
    background:var(--grad);
    opacity:.45;
    border:0;
    margin:0;
  }

  /* ---------- 问题速览卡 ---------- */
  .grid-3up{
    display:grid;
    grid-template-columns:1fr;
    gap:24px;
  }
  @media (min-width:640px){.grid-3up{grid-template-columns:repeat(2,1fr);}}
  @media (min-width:1024px){.grid-3up{grid-template-columns:repeat(4,1fr);}}
  .info-card{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    overflow:hidden;
    box-shadow:var(--shadow-card);
    transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease;
    display:flex;
    flex-direction:column;
  }
  .info-card:hover{
    transform:translateY(-2px);
    border-color:rgba(0,216,180,.4);
    box-shadow:0 0 0 1px rgba(0,216,180,.4),var(--shadow-glow);
  }
  .info-card img{aspect-ratio:16/9;object-fit:cover;border-radius:0;width:100%;}
  .info-card-body{padding:20px 22px 24px;}
  .info-card-body h3{font-size:18px;font-weight:700;margin:0 0 10px;}
  .info-card-body p{color:var(--muted);font-size:14px;margin:0 0 14px;}
  .badge-cat{
    display:inline-block;
    font-size:12px;
    color:var(--secondary);
    background:rgba(255,62,127,.12);
    border:1px solid rgba(255,62,127,.3);
    border-radius:6px;
    padding:3px 9px;
    margin-bottom:12px;
  }
  .text-link{
    color:var(--primary);
    font-size:14px;
    font-weight:600;
    display:inline-flex;
    align-items:center;
    gap:6px;
  }
  .text-link:hover{color:var(--secondary);}

  /* ---------- 分组手风琴 ---------- */
  .faq-group{
    background:rgba(18,16,31,.6);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    padding:24px;
    margin-bottom:24px;
  }
  .group-head{
    display:flex;
    align-items:center;
    gap:12px;
    flex-wrap:wrap;
    margin-bottom:18px;
  }
  .group-head h3{font-size:19px;font-weight:800;margin:0;}
  .group-count{
    font-size:12px;
    font-weight:800;
    color:#0A0915;
    background:var(--primary);
    border-radius:6px;
    padding:2px 9px;
    font-variant-numeric:tabular-nums;
  }
  .group-head p{
    flex:1 1 100%;
    margin:0;
    color:var(--dim);
    font-size:14px;
  }
  .faq-item{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:14px;
    overflow:hidden;
    margin-bottom:12px;
    transition:border-color .16s ease,box-shadow .16s ease;
  }
  .faq-item:last-child{margin-bottom:0;}
  .faq-item:hover{border-color:rgba(0,216,180,.3);}
  .faq-item[open]{
    border-color:rgba(0,216,180,.45);
    box-shadow:0 0 0 1px rgba(0,216,180,.16);
  }
  .faq-item summary{
    list-style:none;
    cursor:pointer;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    padding:16px 20px;
    font-size:15px;
    font-weight:600;
    color:var(--ink);
    line-height:1.6;
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary::after{
    content:"+";
    flex:0 0 auto;
    color:var(--primary);
    font-size:20px;
    font-weight:700;
    line-height:1;
    transition:transform .16s ease;
  }
  .faq-item[open] summary{
    border-left:3px solid var(--primary);
    padding-left:17px;
  }
  .faq-item[open] summary::after{content:"−";}
  .faq-body{
    padding:0 20px 18px;
    color:var(--muted);
    font-size:15px;
    line-height:1.8;
    border-top:1px solid var(--line);
    padding-top:14px;
    margin:0;
  }
  .faq-body strong{color:var(--ink);font-weight:600;}
  .faq-empty{
    border:1px dashed rgba(0,216,180,.35);
    border-radius:14px;
    padding:32px 24px;
    text-align:center;
    color:var(--muted);
    background:rgba(0,216,180,.05);
  }
  .faq-empty i{color:var(--primary);font-size:22px;display:block;margin-bottom:10px;}

  /* ---------- 排查流程 ---------- */
  .path-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:24px;
  }
  @media (min-width:640px){.path-grid{grid-template-columns:repeat(2,1fr);}}
  @media (min-width:1024px){.path-grid{grid-template-columns:repeat(4,1fr);}}
  .path-card{
    position:relative;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    padding:24px 22px;
    transition:transform .16s ease,border-color .16s ease,box-shadow .16s ease;
  }
  .path-card:hover{
    transform:translateY(-2px);
    border-color:rgba(0,216,180,.4);
    box-shadow:var(--shadow-glow);
  }
  .path-num{
    font-size:44px;
    font-weight:900;
    line-height:1;
    color:transparent;
    -webkit-text-stroke:1px var(--accent);
    font-variant-numeric:tabular-nums;
    display:block;
    margin-bottom:14px;
  }
  .path-card h3{font-size:17px;font-weight:700;margin:0 0 10px;}
  .path-card p{color:var(--muted);font-size:14px;margin:0;line-height:1.75;}

  /* ---------- 图文对照 ---------- */
  .split{
    display:grid;
    grid-template-columns:1fr;
    gap:32px;
    align-items:center;
  }
  @media (min-width:1024px){.split{grid-template-columns:6fr 6fr;gap:48px;}}
  .split img{
    width:100%;
    aspect-ratio:16/10;
    object-fit:cover;
    border-radius:16px;
    border:1px solid var(--line);
    box-shadow:var(--shadow-card);
  }
  .check-list{list-style:none;padding:0;margin:18px 0 0;}
  .check-list li{
    position:relative;
    padding-left:28px;
    margin-bottom:12px;
    color:var(--muted);
    font-size:15px;
  }
  .check-list li::before{
    content:"";
    position:absolute;
    left:0;top:.6em;
    width:8px;height:8px;
    border-radius:50%;
    background:var(--primary);
  }
  .check-list li strong{color:var(--ink);font-weight:600;}

  /* ---------- CTA 面板 ---------- */
  .cta-panel{
    background:linear-gradient(135deg,rgba(26,23,48,.95),rgba(18,16,31,.95));
    border:1px solid var(--line);
    border-radius:20px;
    padding:32px 24px;
    position:relative;
    overflow:hidden;
  }
  @media (min-width:1024px){.cta-panel{padding:48px;}}
  .cta-panel::before{
    content:"";
    position:absolute;
    width:340px;height:340px;
    right:-120px;bottom:-160px;
    background:radial-gradient(circle,rgba(255,62,127,.22),transparent 65%);
    pointer-events:none;
  }
  .cta-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:32px;
    align-items:center;
    position:relative;
    z-index:2;
  }
  @media (min-width:1024px){.cta-grid{grid-template-columns:1fr 1fr;gap:48px;}}
  .cta-panel h2{font-size:24px;font-weight:800;margin:0 0 14px;}
  @media (min-width:1024px){.cta-panel h2{font-size:30px;}}
  .cta-panel p{color:var(--muted);margin:0 0 12px;font-size:15px;}
  .form-row{display:flex;gap:12px;flex-wrap:wrap;}
  .form-row input{
    flex:1 1 220px;
    min-height:48px;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:10px;
    padding:0 16px;
    font-size:15px;
  }
  .form-row input::placeholder{color:var(--dim);}
  .form-row input:focus{
    outline:none;
    border-color:var(--primary);
    box-shadow:0 0 0 2px rgba(0,216,180,.28);
  }
  .form-row input.is-error{
    border-color:#FF5A5F;
    box-shadow:0 0 0 2px rgba(255,90,95,.22);
  }
  .form-row .btn{min-height:48px;padding:0 26px;}
  .form-msg{font-size:13px;margin-top:12px;min-height:20px;}
  .form-msg.error{color:#FF5A5F;}
  .form-msg.ok{color:#2FD07A;}
  .form-note{font-size:13px;color:var(--dim);margin-top:8px;}

  /* ---------- 页脚 ---------- */
  .site-footer{
    background:var(--surface);
    border-top:1px solid var(--line);
    margin-top:0;
    position:relative;
    z-index:1;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:32px;
    padding-top:56px;
    padding-bottom:40px;
  }
  @media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
  @media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr;}}
  .footer-brand p{color:var(--dim);font-size:14px;margin:14px 0 18px;max-width:320px;}
  .footer-grid h4{font-size:15px;font-weight:700;margin:0 0 16px;color:var(--ink);}
  .footer-links{display:flex;flex-direction:column;gap:10px;}
  .footer-links a{color:var(--muted);font-size:14px;transition:color .16s ease;}
  .footer-links a:hover{color:var(--primary);}
  .socials{display:flex;gap:12px;}
  .socials a{
    width:38px;height:38px;
    display:grid;place-items:center;
    border:1px solid var(--line);
    border-radius:10px;
    color:var(--muted);
    transition:color .16s ease,border-color .16s ease,transform .16s ease;
  }
  .socials a:hover{color:var(--primary);border-color:rgba(0,216,180,.5);transform:translateY(-2px);}
  .footer-bottom{
    border-top:1px solid var(--line);
    padding:18px 0;
  }
  .footer-bottom .container{
    display:flex;
    flex-wrap:wrap;
    gap:8px 20px;
    justify-content:space-between;
    font-size:12.5px;
    color:var(--dim);
  }

  /* 回到顶部 */
  .to-top{
    position:fixed;
    right:20px;
    bottom:24px;
    width:44px;height:44px;
    border-radius:50%;
    border:1px solid rgba(0,216,180,.45);
    background:rgba(26,23,48,.9);
    color:var(--primary);
    display:grid;
    place-items:center;
    cursor:pointer;
    opacity:0;
    pointer-events:none;
    transition:opacity .18s ease,transform .18s ease;
    z-index:50;
  }
  .to-top.is-visible{opacity:1;pointer-events:auto;}
  .to-top:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(0,216,180,.2);}