/* roulang page: index */
:root{
  --bg-base:#070C16;
  --bg-panel:#0D1524;
  --bg-elevated:#121C30;
  --brand:#3B8CFF;
  --brand-2:#2BE0C7;
  --accent:#FFB84D;
  --vip:#A78BFA;
  --text:#E8EEF9;
  --text-2:#9BA9C0;
  --text-3:#6B7A93;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.14);
  --glass:rgba(255,255,255,.04);
  --glass-2:rgba(255,255,255,.06);
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --r-pill:999px;
  --shadow-card:0 20px 45px -20px rgba(0,0,0,.8);
  --shadow-btn:0 10px 30px -8px rgba(59,140,255,.55);
  --bs-body-bg:var(--bg-base);
  --bs-body-color:var(--text);
  --bs-primary:var(--brand);
  --bs-border-color:var(--line);
  --bs-link-color:var(--brand);
  --bs-link-hover-color:var(--brand-2);
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background-color:var(--bg-base);
  background-image:
    radial-gradient(60% 42% at 10% -6%, rgba(59,140,255,.12), rgba(59,140,255,0) 70%),
    radial-gradient(48% 38% at 94% 4%, rgba(167,139,250,.10), rgba(167,139,250,0) 70%),
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size:auto,auto,48px 48px,48px 48px;
  background-attachment:fixed,fixed,scroll,scroll;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{text-decoration:none;color:var(--brand);transition:color .22s ease;}
a:hover{color:var(--brand-2);}
img{max-width:100%;display:block;}
h1,h2,h3,h4,h5{font-weight:700;letter-spacing:-.01em;margin:0;color:var(--text);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}

.container{max-width:1200px;padding-left:20px;padding-right:20px;}
.num{font-family:"Inter","Barlow",system-ui,sans-serif;font-variant-numeric:tabular-nums;}

/* ---------- 顶部信息条 ---------- */
.topbar{
  background:#050910;
  border-bottom:1px solid var(--line);
  font-size:12px;
  color:var(--text-2);
  height:38px;
  display:flex;
  align-items:center;
}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;}
.topbar-note{display:flex;align-items:center;gap:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar-note i{color:var(--brand-2);}
.topbar-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.topbar-actions a{color:var(--text-2);font-size:12px;}
.topbar-actions a:hover{color:var(--brand);}
.topbar-actions .divider{width:1px;height:12px;background:var(--line-2);}

/* ---------- 主导航 ---------- */
.mainnav{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(7,12,22,.86);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.mainnav .container{
  height:68px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);}
.brand:hover{color:var(--text);}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  display:flex;align-items:center;justify-content:center;
  color:#04121f;font-weight:800;font-size:15px;
  box-shadow:0 8px 22px -10px rgba(59,140,255,.9);
  flex-shrink:0;
}
.brand-text{font-size:16px;font-weight:700;letter-spacing:-.01em;white-space:nowrap;}
.navlinks{display:flex;align-items:center;gap:4px;}
.navlinks a{
  position:relative;
  display:inline-block;
  padding:8px 12px;
  font-size:14px;
  color:var(--text-2);
  border-radius:10px;
  white-space:nowrap;
}
.navlinks a:hover{color:var(--text);background:rgba(255,255,255,.05);}
.navlinks a.active{color:var(--text);}
.navlinks a.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;
  background:var(--brand);border-radius:2px;
  box-shadow:0 0 12px rgba(59,140,255,.9);
}
.nav-right{display:flex;align-items:center;gap:14px;flex-shrink:0;}
.nav-right .login-link{font-size:14px;color:var(--text-2);}
.nav-right .login-link:hover{color:var(--text);}
.burger{
  display:none;
  width:40px;height:40px;border-radius:12px;
  background:var(--glass);border:1px solid var(--line);
  color:var(--text);font-size:16px;
}
.drawer-panel{background:var(--bg-panel);color:var(--text);border-left:1px solid var(--line);width:min(340px,86vw);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--line);}
.drawer-body{padding:16px 12px;}
.drawer-body a{
  display:block;padding:13px 14px;border-radius:12px;
  color:var(--text-2);font-size:15px;margin-bottom:4px;
}
.drawer-body a:hover{background:rgba(255,255,255,.05);color:var(--text);}
.drawer-body a.active{background:rgba(59,140,255,.14);color:var(--text);}
.drawer-foot{padding:16px 20px 26px;border-top:1px solid var(--line);}
.btn-close-custom{background:none;border:0;color:var(--text-2);font-size:18px;}
.btn-close-custom:hover{color:var(--text);}

/* ---------- 按钮 ---------- */
.btn-main,.btn-ghost,.btn-soft{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:all .22s ease;white-space:nowrap;
}
.btn-main{
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-2) 100%);
  color:#04121f;box-shadow:var(--shadow-btn);
}
.btn-main:hover{filter:brightness(1.08);transform:scale(1.02);color:#04121f;}
.btn-main:active{transform:translateY(1px) scale(1);box-shadow:0 6px 16px -8px rgba(59,140,255,.7);}
.btn-ghost{
  background:rgba(255,255,255,.04);border-color:var(--line-2);color:var(--text);
}
.btn-ghost:hover{background:rgba(59,140,255,.12);border-color:rgba(59,140,255,.45);color:var(--text);}
.btn-soft{
  background:rgba(59,140,255,.14);border-color:rgba(59,140,255,.34);color:var(--text);
}
.btn-soft:hover{background:rgba(59,140,255,.22);color:var(--text);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:10px;}
.btn-block{width:100%;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:14px;font-weight:600;
  border-bottom:1px solid transparent;transition:all .22s ease;
}
.btn-text:hover{border-bottom-color:var(--brand);color:var(--brand-2);}

/* ---------- 通用玻璃卡 / 标签 ---------- */
.glass{
  background:var(--glass);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-card);
}
.card-hover{transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease,background .22s ease;}
.card-hover:hover{
  transform:translateY(-2px);
  border-color:rgba(59,140,255,.45);
  box-shadow:0 28px 55px -24px rgba(0,0,0,.9),0 0 0 1px rgba(59,140,255,.25);
  background:var(--glass-2);
}
.badge-pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:12px;line-height:1.6;
  border:1px solid var(--line-2);
  background:rgba(255,255,255,.06);
  color:var(--text-2);
}
.badge-pill i{font-size:10px;color:var(--brand-2);}
.badge-vip{border-color:rgba(167,139,250,.45);background:rgba(167,139,250,.14);color:#CFC2FF;}
.badge-accent{border-color:rgba(255,184,77,.45);background:rgba(255,184,77,.13);color:var(--accent);}
.badge-brand{border-color:rgba(59,140,255,.45);background:rgba(59,140,255,.14);color:#BBD7FF;}
.dot{width:7px;height:7px;border-radius:50%;background:var(--brand-2);display:inline-block;}

/* ---------- 板块 ---------- */
section{padding:88px 0;}
.sec-head{margin-bottom:40px;}
.sec-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--brand);letter-spacing:.06em;margin-bottom:14px;font-weight:600;
}
.sec-head h2{font-size:clamp(22px,2.6vw,32px);line-height:1.35;}
.sec-head p{margin-top:14px;color:var(--text-2);font-size:15px;max-width:760px;}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:96px 0 88px;
  background-image:
    linear-gradient(180deg, rgba(7,12,22,.60) 0%, rgba(7,12,22,.93) 100%),
    radial-gradient(120% 90% at 88% 6%, rgba(59,140,255,.34), rgba(59,140,255,0) 62%),
    url('/assets/images/backpic/back-1.png');
  background-size:cover,cover,cover;
  background-position:center,center,center;
  background-repeat:no-repeat;
  border-bottom:1px solid var(--line);
}
.hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.hero h1{
  font-size:clamp(28px,4vw,44px);
  line-height:1.28;
  margin:18px 0 18px;
  font-weight:800;
}
.hero h1 span{
  background:linear-gradient(120deg,var(--brand),var(--brand-2));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{color:var(--text-2);font-size:16px;max-width:560px;margin-bottom:30px;}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:34px;}
.trust-row{display:flex;gap:28px;flex-wrap:wrap;}
.trust-item{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text-2);}
.trust-item i{
  width:32px;height:32px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;font-size:13px;
  background:rgba(43,224,199,.12);color:var(--brand-2);border:1px solid rgba(43,224,199,.28);
}
.member-card{
  padding:28px;border-radius:var(--r-lg);
  background:linear-gradient(160deg,rgba(59,140,255,.16),rgba(255,255,255,.04) 55%,rgba(167,139,250,.12));
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border:1px solid rgba(255,255,255,.12);
  box-shadow:0 30px 60px -26px rgba(0,0,0,.95);
}
.member-card-top{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:22px;}
.member-card-top .lvl{font-size:20px;font-weight:800;}
.member-card-top .lvl-sub{font-size:13px;color:var(--text-2);margin-top:4px;}
.member-price{display:flex;align-items:baseline;gap:6px;margin-bottom:20px;}
.member-price .now{font-size:34px;font-weight:800;color:var(--accent);}
.member-price .unit{font-size:13px;color:var(--text-2);}
.member-list{margin-bottom:24px;}
.member-list li{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text-2);padding:7px 0;border-bottom:1px dashed rgba(255,255,255,.07);}
.member-list li:last-child{border-bottom:0;}
.member-list i{color:var(--brand-2);font-size:12px;}
.member-note{font-size:12px;color:var(--text-3);margin-top:14px;text-align:center;}

/* ---------- 权益对比表 ---------- */
.table-scroll{width:100%;}
.cmp-table{
  width:100%;border-collapse:separate;border-spacing:0;font-size:14px;
  border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;background:rgba(255,255,255,.02);
}
.cmp-table thead th{
  background:var(--bg-elevated);height:56px;padding:0 18px;text-align:left;
  font-size:14px;font-weight:700;color:var(--text);border-bottom:1px solid var(--line);
  vertical-align:middle;white-space:nowrap;
}
.cmp-table tbody td{
  height:56px;padding:0 18px;border-bottom:1px solid rgba(255,255,255,.06);
  color:var(--text-2);vertical-align:middle;
}
.cmp-table tbody tr:last-child td{border-bottom:0;}
.cmp-table tbody tr:nth-child(even) td{background:rgba(255,255,255,.03);}
.cmp-table tbody td:first-child{color:var(--text);font-weight:600;text-align:left;}
.cmp-table td .yes{color:var(--brand-2);font-size:14px;}
.cmp-table td .no{color:var(--text-3);}
.cmp-table .col-rec{background:rgba(59,140,255,.07)!important;}
.cmp-table thead th.col-rec{background:rgba(59,140,255,.13)!important;position:relative;box-shadow:inset 0 0 0 1px rgba(59,140,255,.35);}
.rec-label{
  display:inline-block;margin-left:8px;padding:2px 10px;border-radius:var(--r-pill);
  font-size:11px;font-weight:700;color:#241600;
  background:linear-gradient(135deg,var(--accent),#FFD79A);
}
.cmp-tip{margin-top:18px;font-size:13px;color:var(--text-3);}

/* ---------- 等级亮点 ---------- */
.level-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.level-card{padding:28px;position:relative;display:flex;flex-direction:column;}
.level-head{display:flex;align-items:center;gap:12px;margin-bottom:6px;}
.level-badge{
  width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:800;font-family:"Inter",sans-serif;
  background:rgba(167,139,250,.16);color:#CFC2FF;border:1px solid rgba(167,139,250,.4);
}
.level-card h3{font-size:20px;}
.level-tag{font-size:13px;color:var(--text-2);margin-bottom:18px;}
.level-points{margin-bottom:24px;flex:1;}
.level-points li{display:flex;gap:10px;font-size:14px;color:var(--text-2);padding:6px 0;}
.level-points li i{color:var(--brand-2);font-size:12px;margin-top:6px;}

/* ---------- 专属内容卡片 ---------- */
.content-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.content-card{display:block;overflow:hidden;position:relative;border-radius:var(--r-lg);}
.content-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-elevated);}
.content-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.content-card:hover .content-thumb img{transform:scale(1.05);}
.content-thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,12,22,.05) 40%,rgba(7,12,22,.75) 100%);
}
.content-cat{
  position:absolute;left:12px;top:12px;z-index:2;
  padding:4px 11px;border-radius:var(--r-pill);font-size:12px;
  background:rgba(7,12,22,.72);border:1px solid var(--line-2);color:var(--text);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
}
.content-lock{
  position:absolute;right:12px;top:12px;z-index:2;
  width:28px;height:28px;border-radius:9px;display:flex;align-items:center;justify-content:center;
  font-size:12px;background:rgba(255,184,77,.18);border:1px solid rgba(255,184,77,.45);color:var(--accent);
}
.content-body{padding:18px 20px 20px;background:var(--glass);border:1px solid var(--line);border-top:0;border-radius:0 0 var(--r-lg) var(--r-lg);}
.content-body h3{font-size:16px;line-height:1.5;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.content-meta{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-3);}
.content-meta .num{color:var(--text-2);}

/* ---------- 最新信息列表 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{display:flex;flex-direction:column;overflow:hidden;border-radius:var(--r-lg);}
.news-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--bg-elevated);}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.news-body{padding:20px;border:1px solid var(--line);border-top:0;border-radius:0 0 var(--r-lg) var(--r-lg);background:var(--glass);display:flex;flex-direction:column;flex:1;}
.news-title{
  font-size:16px;line-height:1.55;margin:12px 0 10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;color:var(--text);
}
.news-desc{
  font-size:14px;color:var(--text-2);margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;flex:1;
}
.news-meta{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-3);}
.news-meta .more{color:var(--brand);}
.news-empty{
  padding:56px 24px;text-align:center;border-radius:var(--r-lg);
  background:var(--glass);border:1px dashed var(--line-2);
}
.news-empty i{font-size:26px;color:var(--brand);margin-bottom:14px;display:block;}
.news-empty p{color:var(--text-2);margin-bottom:20px;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;margin:0 auto;}
.faq-item{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  margin-bottom:14px;
  position:relative;
  overflow:hidden;
  transition:border-color .22s ease,background .22s ease;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--brand);
  transform:scaleY(0);transform-origin:top;transition:transform .25s ease;
}
.faq-item.open{border-color:rgba(59,140,255,.4);background:var(--glass-2);}
.faq-item.open::before{transform:scaleY(1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;background:none;border:0;color:var(--text);
  font-size:16px;font-weight:600;text-align:left;cursor:pointer;
}
.faq-q .plus{
  flex-shrink:0;width:26px;height:26px;border-radius:8px;
  display:flex;align-items:center;justify-content:center;font-size:13px;
  border:1px solid var(--line-2);color:var(--brand);transition:transform .25s ease;
}
.faq-item.open .faq-q .plus{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a p{padding:0 24px 22px;color:var(--text-2);font-size:14px;line-height:1.85;}

/* ---------- 开通表单 ---------- */
.cta-panel{padding:44px;border-radius:var(--r-lg);text-align:center;}
.cta-panel h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:14px;}
.cta-panel > p{color:var(--text-2);font-size:15px;max-width:620px;margin:0 auto 30px;}
.cta-form{max-width:560px;margin:0 auto;display:flex;gap:12px;}
.cta-form input{
  flex:1;height:48px;padding:0 16px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.03);border:1px solid var(--line-2);color:var(--text);
  font-size:15px;transition:border-color .2s ease,box-shadow .2s ease;
}
.cta-form input::placeholder{color:var(--text-3);}
.cta-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(59,140,255,.18);}
.form-msg{margin-top:14px;font-size:13px;color:var(--accent);min-height:20px;}
.guard-row{display:flex;justify-content:center;gap:28px;flex-wrap:wrap;margin-top:26px;}
.guard-row span{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--text-2);}
.guard-row i{color:var(--brand-2);font-size:12px;}
.terms{margin-top:18px;font-size:12px;color:var(--text-3);}

/* ---------- 页脚 ---------- */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(13,21,36,.6),rgba(5,9,16,.9));
  padding:64px 0 0;
  margin-top:24px;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;}
.footer-brand p{color:var(--text-2);font-size:14px;margin-top:16px;max-width:320px;}
.footer-col h4{font-size:14px;font-weight:700;margin-bottom:16px;color:var(--text);}
.footer-col a{display:block;font-size:14px;color:var(--text-2);padding:5px 0;}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  margin-top:48px;padding:22px 0;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .content-grid{grid-template-columns:repeat(3,1fr);}
}
@media (max-width:991px){
  .navlinks{display:none;}
  .nav-right .login-link{display:none;}
  .burger{display:flex;align-items:center;justify-content:center;}
  .hero{padding:72px 0 64px;}
  .hero-inner{grid-template-columns:1fr;gap:40px;}
  .table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;}
  .cmp-table{min-width:840px;}
  .level-grid{grid-template-columns:1fr;gap:20px;}
  .content-grid{grid-template-columns:repeat(2,1fr);}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  section{padding:68px 0;}
}
@media (max-width:767px){
  body{font-size:15px;}
  .topbar-note .hide-sm{display:none;}
  .topbar .container{gap:10px;}
  .topbar-actions{overflow-x:auto;}
  .hero{padding:56px 0 52px;}
  .hero-cta .btn-main,.hero-cta .btn-ghost{flex:1;min-width:150px;}
  .trust-row{gap:16px;}
  .cta-form{flex-direction:column;}
  .cta-form .btn-main{width:100%;}
  .cta-panel{padding:28px 20px;}
  .content-grid{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  section{padding:52px 0;}
  .sec-head{margin-bottom:28px;}
  .footer-grid{grid-template-columns:1fr;gap:24px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .faq-q{font-size:15px;padding:16px 18px;}
  .faq-a p{padding:0 18px 18px;}
}
@media (max-width:575px){
  .brand-text{font-size:15px;}
  .member-card{padding:22px;}
  .member-price .now{font-size:28px;}
  .guard-row{gap:14px;flex-direction:column;align-items:center;}
}

/* roulang page: article */
:root{
  --bg-base:#070C16;
  --bg-panel:#0D1524;
  --bg-elevated:#121C30;
  --brand:#3B8CFF;
  --brand-2:#2BE0C7;
  --accent:#FFB84D;
  --vip:#A78BFA;
  --text:#E8EEF9;
  --text-2:#9BA9C0;
  --text-3:#6B7A93;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.06);
  --glass:rgba(255,255,255,.04);
  --radius:18px;
  --radius-sm:14px;
  --radius-btn:12px;
  --shadow-card:0 20px 45px -20px rgba(0,0,0,.8);
  --shadow-btn:0 10px 30px -8px rgba(59,140,255,.55);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --font-num:"Inter","Barlow","PingFang SC",sans-serif;
  --bs-body-bg:#070C16;
  --bs-body-color:#E8EEF9;
  --bs-primary:#3B8CFF;
  --bs-border-color:rgba(255,255,255,.08);
  --bs-link-color:#3B8CFF;
  --bs-link-hover-color:#2BE0C7;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.7;
  color:var(--text);
  background-color:var(--bg-base);
  background-image:
    radial-gradient(circle at 82% -12%, rgba(59,140,255,.12), transparent 46%),
    radial-gradient(circle at 6% 10%, rgba(167,139,250,.08), transparent 42%),
    linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size:auto,auto,44px 44px,44px 44px;
  background-attachment:fixed,fixed,scroll,scroll;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease;}
a:hover{color:var(--brand-2);}
button,input{font-family:inherit;}
h1,h2,h3,h4,h5{margin:0;font-weight:700;letter-spacing:-.01em;color:var(--text);}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;}

/* ============ 顶部信息条 ============ */
.info-bar{
  background:#050910;
  border-bottom:1px solid var(--line-2);
  font-size:12px;
  color:var(--text-2);
}
.info-bar .container{
  min-height:38px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  white-space:nowrap;
  overflow-x:auto;
  scrollbar-width:none;
}
.info-bar .container::-webkit-scrollbar{display:none;}
.info-note{display:inline-flex;align-items:center;gap:8px;}
.info-dot{width:6px;height:6px;border-radius:50%;background:var(--brand-2);box-shadow:0 0 10px rgba(43,224,199,.8);flex:0 0 auto;}
.info-actions{display:inline-flex;align-items:center;gap:14px;}
.info-actions a{color:var(--text-2);font-size:12px;}
.info-actions a:hover{color:var(--brand);}
.info-sep{width:1px;height:12px;background:var(--line);display:inline-block;}

/* ============ 主导航 ============ */
.site-header{position:sticky;top:0;z-index:1030;}
.main-nav{
  background:rgba(7,12,22,.86);
  border-bottom:1px solid var(--line-2);
  transition:background .25s ease,box-shadow .25s ease,backdrop-filter .25s ease;
}
.main-nav .container{
  min-height:68px;
  display:flex;
  align-items:center;
  gap:24px;
}
.is-scrolled .main-nav{
  background:rgba(7,12,22,.82);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  box-shadow:0 12px 32px -22px rgba(0,0,0,.95);
  border-bottom-color:var(--line);
}
.is-scrolled .info-bar{display:none;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:34px;height:34px;border-radius:11px;
  display:grid;place-items:center;
  font-weight:800;font-size:17px;color:#04121F;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-2) 100%);
  box-shadow:0 8px 22px -10px rgba(59,140,255,.9);
}
.brand-text{font-size:16px;font-weight:800;color:var(--text);letter-spacing:.01em;white-space:nowrap;}
.navlinks{display:flex;align-items:center;gap:6px;margin-left:auto;}
.navlinks a{
  position:relative;
  padding:10px 12px;
  font-size:14px;
  color:var(--text-2);
  border-radius:10px;
  white-space:nowrap;
}
.navlinks a:hover{color:var(--text);background:rgba(255,255,255,.05);}
.navlinks a.active{color:var(--text);}
.navlinks a.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2));
}
.nav-right{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.nav-login{font-size:14px;color:var(--text-2);}
.nav-login:hover{color:var(--brand);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:var(--glass);
  flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;margin-left:auto;
}
.nav-toggle span{width:18px;height:2px;background:var(--text);border-radius:2px;transition:transform .25s ease,opacity .25s ease;}
.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-open .nav-toggle span:nth-child(2){opacity:0;}
.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.drawer-cta{display:none;}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:14px;font-weight:600;border-radius:var(--radius-btn);padding:11px 20px;border:1px solid transparent;transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,border-color .2s ease,color .2s ease;cursor:pointer;}
.btn-primary{
  color:#041018;
  background:linear-gradient(135deg,#3B8CFF 0%,#2BE0C7 100%);
  box-shadow:var(--shadow-btn);
}
.btn-primary:hover{color:#041018;filter:brightness(1.08);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 16px -8px rgba(59,140,255,.7);}
.btn-ghost{color:var(--text);background:var(--glass);border-color:var(--line);}
.btn-ghost:hover{color:var(--text);background:rgba(59,140,255,.12);border-color:rgba(59,140,255,.45);}
.btn-sm{padding:9px 16px;font-size:13px;}
.btn-block{width:100%;}

/* ============ 面包屑 ============ */
.crumb-wrap{padding:26px 0 0;}
.breadcrumb-line{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
.breadcrumb-line a{color:var(--text-3);}
.breadcrumb-line a:hover{color:var(--brand);}
.breadcrumb-line .sep{color:rgba(107,122,147,.7);}
.breadcrumb-line .current{color:var(--text);max-width:60%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ============ 文章头 ============ */
.article-hero{padding:22px 0 0;}
.article-hero .tagline{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 12px;border-radius:999px;
  font-size:12px;color:var(--brand-2);
  border:1px solid rgba(43,224,199,.35);
  background:rgba(43,224,199,.10);
  margin-bottom:16px;
}
.article-hero h1{
  font-size:clamp(26px,3.6vw,40px);
  line-height:1.3;
  font-weight:800;
  max-width:900px;
}
.article-meta{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px 18px;
  margin-top:18px;font-size:13px;color:var(--text-3);
}
.article-meta .chip{
  padding:4px 10px;border-radius:999px;
  border:1px solid var(--line);background:var(--glass);color:var(--text-2);font-size:12px;
}
.article-meta span strong{color:var(--text-2);font-weight:500;}
.cover-frame{
  margin-top:26px;border-radius:var(--radius-sm);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-card);
  background:var(--bg-panel);
}
.cover-frame img{width:100%;aspect-ratio:16/7;object-fit:cover;}

/* ============ 布局 ============ */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 300px;
  gap:44px;
  padding:44px 0 8px;
  align-items:start;
}
.article-main{min-width:0;}
.article-body{
  max-width:800px;
  font-size:17px;
  line-height:1.85;
  color:var(--text);
}
.article-body p{margin:0 0 1.2em;color:#D8E2F2;}
.article-body h2{
  position:relative;
  font-size:clamp(21px,2.4vw,27px);
  margin:2.1em 0 .8em;
  padding-left:16px;
  line-height:1.4;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;border-radius:3px;
  background:linear-gradient(180deg,var(--brand),var(--brand-2));
}
.article-body h3{font-size:19px;font-weight:700;margin:1.7em 0 .55em;}
.article-body h4{font-size:17px;font-weight:600;margin:1.4em 0 .5em;color:var(--text-2);}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(59,140,255,.35);}
.article-body a:hover{color:var(--brand-2);border-bottom-color:rgba(43,224,199,.6);}
.article-body ul,.article-body ol{padding-left:0;margin:0 0 1.3em;}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:.55em;color:#D8E2F2;}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:50%;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
}
.article-body ol{counter-reset:li;}
.article-body ol li{position:relative;padding-left:32px;margin-bottom:.6em;counter-increment:li;color:#D8E2F2;}
.article-body ol li::before{
  content:counter(li);
  position:absolute;left:0;top:.15em;width:22px;height:22px;border-radius:8px;
  display:grid;place-items:center;font-size:12px;font-weight:700;color:#04121F;
  background:linear-gradient(135deg,#3B8CFF,#2BE0C7);
}
.article-body blockquote{
  margin:1.6em 0;padding:16px 20px;
  border-left:4px solid var(--brand);
  background:rgba(255,255,255,.04);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--radius-sm);margin:1.6em auto;box-shadow:var(--shadow-card);}
.article-body figure{margin:1.6em 0;}
.article-body figcaption{text-align:center;font-size:13px;color:var(--text-3);margin-top:10px;}
.article-body table{
  width:100%;border-collapse:separate;border-spacing:0;
  margin:1.6em 0;font-size:14px;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  overflow:hidden;
}
.article-body th{
  background:var(--bg-elevated);
  color:var(--text);font-weight:600;text-align:left;
  padding:13px 16px;font-size:13px;
  border-bottom:1px solid var(--line);
}
.article-body td{
  padding:13px 16px;color:var(--text-2);
  border-bottom:1px solid var(--line-2);
}
.article-body tbody tr:nth-child(even) td{background:rgba(255,255,255,.025);}
.article-body tbody tr:last-child td{border-bottom:0;}
.article-body code{
  background:rgba(59,140,255,.12);color:var(--brand-2);
  padding:2px 7px;border-radius:6px;font-size:14px;
}
.article-body hr{border:0;height:1px;background:var(--line);margin:2.2em 0;}

/* ============ 侧栏 ============ */
.article-side .side-inner{position:sticky;top:96px;display:grid;gap:20px;}
.side-card{
  background:var(--glass);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:22px;
  box-shadow:var(--shadow-card);
}
.side-card h3{font-size:14px;letter-spacing:.04em;color:var(--text-2);margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-card h3::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-2);}
.toc-list{display:grid;gap:4px;}
.toc-list a{
  display:block;padding:8px 10px;border-radius:10px;
  font-size:13px;color:var(--text-2);line-height:1.5;
  border-left:2px solid transparent;
}
.toc-list a:hover{color:var(--text);background:rgba(255,255,255,.05);border-left-color:var(--brand);}
.toc-list a.is-current{color:var(--text);background:rgba(59,140,255,.12);border-left-color:var(--brand);}
.side-related{display:grid;gap:12px;}
.side-related a{
  display:grid;grid-template-columns:64px minmax(0,1fr);gap:12px;align-items:center;
  padding:8px;border-radius:12px;border:1px solid transparent;
}
.side-related a:hover{background:rgba(255,255,255,.05);border-color:rgba(59,140,255,.35);}
.side-related img{width:64px;height:46px;object-fit:cover;border-radius:10px;}
.side-related strong{display:block;font-size:13px;font-weight:600;color:var(--text);line-height:1.5;}
.side-related em{font-style:normal;font-size:12px;color:var(--text-3);}

/* ============ 文末 ============ */
.article-foot{margin-top:44px;max-width:800px;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;padding:18px 0 4px;border-top:1px solid var(--line-2);}
.tag{
  padding:5px 12px;border-radius:999px;font-size:12px;
  color:var(--text-2);border:1px solid var(--line);background:var(--glass);
}
.tag:hover{color:var(--brand);border-color:rgba(59,140,255,.45);}
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:26px;}
.post-nav a{
  display:block;padding:18px 20px;border-radius:var(--radius-sm);
  background:var(--glass);border:1px solid var(--line);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.post-nav a:hover{transform:translateY(-2px);border-color:rgba(59,140,255,.45);box-shadow:var(--shadow-card);}
.post-nav span{display:block;font-size:12px;color:var(--text-3);margin-bottom:6px;}
.post-nav strong{font-size:15px;color:var(--text);font-weight:600;line-height:1.5;}
.back-row{margin-top:26px;}

/* ============ 相关推荐 ============ */
.related-section{padding:72px 0 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap;}
.section-head h2{font-size:clamp(21px,2.4vw,28px);}
.section-head p{font-size:14px;color:var(--text-2);margin:6px 0 0;}
.section-head .more{font-size:14px;color:var(--text-2);border-bottom:1px solid rgba(155,169,192,.4);padding-bottom:2px;}
.section-head .more:hover{color:var(--brand);border-bottom-color:rgba(59,140,255,.7);}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.content-card{
  display:flex;flex-direction:column;
  background:var(--glass);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.content-card:hover{transform:translateY(-2px);border-color:rgba(59,140,255,.45);box-shadow:0 26px 55px -22px rgba(0,0,0,.9);}
.card-cover{position:relative;background:var(--bg-elevated);}
.card-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.card-cover .badge-tag{
  position:absolute;left:12px;top:12px;
  padding:4px 10px;border-radius:999px;font-size:12px;
  color:var(--text);background:rgba(7,12,22,.72);
  border:1px solid var(--line);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:16px;line-height:1.55;font-weight:700;}
.card-body p{font-size:14px;line-height:1.7;color:var(--text-2);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-meta{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--text-3);margin-top:auto;}

/* ============ CTA ============ */
.cta-section{padding:80px 0 0;}
.cta-card{
  position:relative;overflow:hidden;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:
    radial-gradient(circle at 88% 0%, rgba(59,140,255,.20), transparent 52%),
    linear-gradient(150deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
  padding:44px 40px;
  display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);
  gap:33px;align-items:center;
  box-shadow:var(--shadow-card);
}
.cta-card h2{font-size:clamp(21px,2.5vw,29px);line-height:1.35;}
.cta-card p{color:var(--text-2);font-size:14.5px;margin:12px 0 0;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end;}
.cta-marks{display:flex;flex-wrap:wrap;gap:16px;margin-top:18px;font-size:13px;color:var(--text-2);}
.cta-marks span{display:inline-flex;align-items:center;gap:7px;}
.cta-marks i{width:6px;height:6px;border-radius:50%;background:var(--brand-2);display:inline-block;}

/* ============ 空状态 ============ */
.empty-state{
  max-width:800px;text-align:center;padding:56px 28px;
  border:1px dashed rgba(255,255,255,.16);border-radius:var(--radius);
  background:var(--glass);
}
.empty-state h2{font-size:22px;margin-bottom:12px;}
.empty-state p{color:var(--text-2);font-size:14.5px;}

/* ============ 页脚 ============ */
.site-footer{margin-top:88px;border-top:1px solid var(--line);background:#050910;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;padding:56px 0 36px;}
.footer-brand p{color:var(--text-2);font-size:13.5px;line-height:1.8;margin:16px 0 0;max-width:340px;}
.footer-col h4{font-size:14px;font-weight:700;color:var(--text);margin-bottom:16px;}
.footer-col a{display:block;font-size:14px;color:var(--text-2);padding:6px 0;}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  border-top:1px solid var(--line-2);
  padding:20px 0 26px;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:12.5px;color:var(--text-3);
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:36px;}
  .article-side .side-inner{position:static;grid-template-columns:repeat(2,minmax(0,1fr));display:grid;}
}
@media (max-width:991.98px){
  .nav-toggle{display:flex;}
  .nav-right{display:none;}
  .navlinks{
    position:fixed;inset:0;
    display:flex;flex-direction:column;align-items:stretch;gap:4px;
    padding:104px 24px 40px;
    background:rgba(5,9,16,.98);
    -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
    transform:translateX(100%);
    transition:transform .3s ease;
    overflow-y:auto;
  }
  .nav-open .navlinks{transform:translateX(0);}
  .navlinks a{padding:16px 14px;font-size:16px;border-radius:12px;border:1px solid transparent;}
  .navlinks a.active{background:rgba(59,140,255,.12);border-color:rgba(59,140,255,.35);}
  .navlinks a.active::after{display:none;}
  .drawer-cta{display:block;margin-top:22px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-card{grid-template-columns:minmax(0,1fr);padding:34px 26px;}
  .cta-actions{justify-content:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;padding:44px 0 30px;}
}
@media (max-width:767.98px){
  .container{padding:0 16px;}
  .info-bar .container{justify-content:flex-start;}
  .info-actions{display:none;}
  .article-hero{padding-top:16px;}
  .article-body{font-size:16px;}
  .article-body table{display:block;white-space:nowrap;overflow-x:auto;}
  .cover-frame img{aspect-ratio:16/9;}
  .post-nav{grid-template-columns:1fr;}
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .related-section{padding-top:56px;}
  .cta-section{padding-top:56px;}
  .site-footer{margin-top:64px;}
}
@media (max-width:575.98px){
  .article-side .side-inner{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .breadcrumb-line .current{max-width:100%;}
  .cta-card{padding:28px 20px;}
}

/* roulang page: category1 */
:root{
  --bg-base:#070C16;
  --bg-deep:#050910;
  --bg-panel:#0D1524;
  --bg-elevated:#121C30;
  --brand:#3B8CFF;
  --brand-2:#2BE0C7;
  --accent:#FFB84D;
  --vip:#A78BFA;
  --text:#E8EEF9;
  --text-2:#9BA9C0;
  --text-3:#6B7A93;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --glass:rgba(255,255,255,.04);
  --glass-2:rgba(255,255,255,.06);
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:12px;
  --shadow-card:0 20px 45px -20px rgba(0,0,0,.8);
  --shadow-btn:0 10px 30px -8px rgba(59,140,255,.55);
  --container:1200px;
  --bs-body-bg:#070C16;
  --bs-body-color:#E8EEF9;
  --bs-primary:#3B8CFF;
  --bs-border-color:rgba(255,255,255,.08);
  --bs-link-color:#3B8CFF;
  --bs-link-hover-color:#2BE0C7;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background-color:var(--bg-base);
  background-image:
    radial-gradient(900px 620px at 88% -8%, rgba(59,140,255,.10), transparent 62%),
    radial-gradient(760px 520px at 4% 18%, rgba(167,139,250,.07), transparent 62%),
    linear-gradient(180deg,#070C16 0%,#060A12 100%);
  background-attachment:fixed;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index: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:64px 64px;
  opacity:.5;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-2);}
a:focus-visible,button:focus-visible,input:focus-visible,.acc-head:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}
h1,h2,h3,h4{font-weight:700;letter-spacing:-.01em;line-height:1.3;margin:0;color:var(--text);}
p{margin:0 0 1em;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;}
.num{font-family:"Inter","Barlow",system-ui,sans-serif;font-variant-numeric:tabular-nums;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 20px;
  position:relative;
  z-index:1;
}
section{position:relative;z-index:1;}

/* ============ 顶部信息条 ============ */
.topbar{
  background:var(--bg-deep);
  border-bottom:1px solid rgba(255,255,255,.05);
  min-height:38px;
  font-size:12px;
  color:var(--text-2);
}
.topbar-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:38px;
  overflow-x:auto;
  white-space:nowrap;
  scrollbar-width:none;
}
.topbar-inner::-webkit-scrollbar{display:none;}
.topbar-note{display:flex;align-items:center;gap:8px;}
.topbar-note i{color:var(--brand-2);font-size:11px;}
.topbar-actions{display:flex;align-items:center;gap:14px;}
.topbar-actions a{color:var(--text-2);font-size:12px;}
.topbar-actions a:hover{color:var(--brand);}
.topbar-divider{width:1px;height:14px;background:rgba(255,255,255,.14);display:inline-block;}

/* ============ 主导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(7,12,22,.86);
  border-bottom:1px solid transparent;
  transition:background .25s ease, border-color .25s ease, backdrop-filter .25s ease;
}
.site-header.is-stuck{
  background:rgba(7,12,22,.72);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:22px;
  min-height:68px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
  color:var(--text);
}
.brand:hover{color:var(--text);}
.brand-mark{
  width:34px;height:34px;
  border-radius:11px;
  display:grid;place-items:center;
  font-weight:800;
  font-size:16px;
  color:#04101F;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  box-shadow:0 8px 22px -10px rgba(59,140,255,.9);
}
.brand-text{
  font-size:17px;
  font-weight:800;
  letter-spacing:-.01em;
  white-space:nowrap;
}
.navlinks{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:8px;
  flex:1;
  min-width:0;
}
.navlinks a{
  position:relative;
  display:inline-block;
  padding:8px 12px;
  font-size:14px;
  font-weight:500;
  color:var(--text-2);
  border-radius:10px;
  white-space:nowrap;
  transition:color .2s ease, background .2s ease;
}
.navlinks a:hover{color:var(--text);background:rgba(255,255,255,.05);}
.navlinks a.active{color:var(--text);font-weight:600;}
.navlinks a.active::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:2px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2));
}
.header-actions{display:flex;align-items:center;gap:14px;flex-shrink:0;}
.header-login{font-size:14px;color:var(--text-2);}
.header-login:hover{color:var(--text);}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:12px;
  border:1px solid var(--line);
  color:var(--text);
  font-size:17px;
  background:var(--glass);
  flex-shrink:0;
}
.drawer{
  display:none;
  position:fixed;
  inset:106px 0 0 0;
  z-index:55;
  background:rgba(7,12,22,.98);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  padding:22px 20px 110px;
  overflow-y:auto;
}
.drawer.open{display:block;}
.drawer a.drawer-link{
  display:block;
  padding:14px 12px;
  font-size:15px;
  color:var(--text-2);
  border-bottom:1px solid var(--line);
  border-radius:0;
}
.drawer a.drawer-link.active{color:var(--brand);font-weight:600;}
.drawer-cta{
  position:sticky;
  bottom:0;
  margin-top:22px;
  padding-top:16px;
}

/* ============ 按钮 ============ */
.btn-primary-ghost,
.btn-main,
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-size:14px;
  font-weight:600;
  border-radius:var(--radius-sm);
  padding:12px 22px;
  line-height:1.2;
  transition:transform .22s ease, box-shadow .22s ease, background .22s ease, color .22s ease, border-color .22s ease;
  white-space:nowrap;
}
.btn-main{
  color:#04101F;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-2) 100%);
  box-shadow:var(--shadow-btn);
}
.btn-main:hover{color:#04101F;transform:translateY(-1px) scale(1.02);filter:brightness(1.08);}
.btn-main:active{transform:translateY(1px) scale(.99);box-shadow:0 6px 18px -8px rgba(59,140,255,.5);}
.btn-ghost{
  color:var(--text);
  background:var(--glass);
  border:1px solid var(--line-strong);
}
.btn-ghost:hover{color:var(--text);background:rgba(59,140,255,.12);border-color:rgba(59,140,255,.45);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{padding:9px 16px;font-size:13px;}
.btn-text{
  font-size:13px;
  color:var(--brand);
  border-bottom:1px solid transparent;
  padding-bottom:2px;
}
.btn-text:hover{border-bottom-color:var(--brand-2);color:var(--brand-2);}

/* ============ 徽章 / 标签 ============ */
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  border-radius:999px;
  font-size:12px;
  font-weight:500;
  color:var(--brand);
  background:rgba(59,140,255,.12);
  border:1px solid rgba(59,140,255,.32);
}
.tag-green{color:var(--brand-2);background:rgba(43,224,199,.12);border-color:rgba(43,224,199,.3);}
.tag-gold{color:var(--accent);background:rgba(255,184,77,.12);border-color:rgba(255,184,77,.32);}
.tag-vip{color:var(--vip);background:rgba(167,139,250,.14);border-color:rgba(167,139,250,.34);}
.dot{width:6px;height:6px;border-radius:50%;background:currentColor;display:inline-block;}

/* ============ 通用板块 ============ */
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--brand-2);
  font-weight:600;
  margin-bottom:14px;
}
.eyebrow i{font-size:11px;}
.section-title{
  font-size:clamp(22px,2.6vw,32px);
  margin-bottom:14px;
}
.section-sub{color:var(--text-2);font-size:15px;margin:0;}
.divider-line{height:1px;background:linear-gradient(90deg,rgba(255,255,255,.12),transparent);margin:0;}

/* ============ Hero ============ */
.hero{
  position:relative;
  padding:76px 0 84px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.hero-bg{
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  opacity:.32;
  z-index:0;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9) 0%,rgba(0,0,0,.45) 60%,transparent 100%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9) 0%,rgba(0,0,0,.45) 60%,transparent 100%);
}
.hero::after{
  content:"";
  position:absolute;
  inset:0;
  z-index:0;
  background:linear-gradient(180deg,rgba(7,12,22,.62) 0%,rgba(7,12,22,.9) 62%,var(--bg-base) 100%);
}
.hero-grid{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:56px;
  align-items:center;
}
.hero h1{
  font-size:clamp(28px,4vw,44px);
  font-weight:800;
  margin-bottom:18px;
}
.hero-sub{
  font-size:16px;
  color:var(--text-2);
  max-width:560px;
  margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.hero-marks{display:flex;flex-wrap:wrap;gap:22px;}
.mark{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-2);}
.mark i{color:var(--brand-2);font-size:14px;}

.hero-panel{
  border-radius:var(--radius-lg);
  border:1px solid var(--line-strong);
  background:var(--glass);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
  padding:24px;
}
.hero-panel-media{
  border-radius:var(--radius-md);
  overflow:hidden;
  aspect-ratio:16/10;
  border:1px solid var(--line);
  background:linear-gradient(135deg,rgba(59,140,255,.16),rgba(43,224,199,.08));
}
.hero-panel-media img{width:100%;height:100%;object-fit:cover;}
.hero-panel h3{font-size:17px;margin:18px 0 12px;}
.hero-list li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:14px;
  color:var(--text-2);
  padding:9px 0;
  border-bottom:1px dashed rgba(255,255,255,.07);
}
.hero-list li:last-child{border-bottom:none;}
.hero-list i{color:var(--brand-2);margin-top:5px;font-size:12px;}
.hero-panel-foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-top:18px;
}
.hero-panel-foot .meta{font-size:12px;color:var(--text-3);}

/* ============ 卡片网格 ============ */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.card{
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:var(--glass);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  padding:26px;
  box-shadow:var(--shadow-card);
  transition:transform .22s ease, border-color .22s ease, box-shadow .22s ease;
  height:100%;
  display:flex;
  flex-direction:column;
}
.card:hover{
  transform:translateY(-2px);
  border-color:rgba(59,140,255,.45);
  box-shadow:0 26px 50px -22px rgba(0,0,0,.9), 0 0 0 1px rgba(59,140,255,.16);
}
.card-icon{
  width:46px;height:46px;
  border-radius:var(--radius-sm);
  display:grid;place-items:center;
  font-size:19px;
  color:var(--brand);
  background:rgba(59,140,255,.12);
  border:1px solid rgba(59,140,255,.28);
  margin-bottom:18px;
}
.card-icon.green{color:var(--brand-2);background:rgba(43,224,199,.12);border-color:rgba(43,224,199,.28);}
.card-icon.gold{color:var(--accent);background:rgba(255,184,77,.12);border-color:rgba(255,184,77,.3);}
.card h3{font-size:19px;margin-bottom:10px;}
.card p{font-size:14px;color:var(--text-2);margin-bottom:16px;}
.card-list{margin-bottom:20px;}
.card-list li{
  display:flex;
  gap:9px;
  align-items:flex-start;
  font-size:13.5px;
  color:var(--text-2);
  padding:6px 0;
}
.card-list i{color:var(--brand-2);font-size:11px;margin-top:6px;}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;}

/* ============ 安全板块 ============ */
.safety-wrap{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:52px;
  align-items:center;
}
.safety-media{
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  aspect-ratio:4/3;
  background:var(--bg-panel);
}
.safety-media img{width:100%;height:100%;object-fit:cover;}
.check-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  padding:14px 0;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.check-list li:last-child{border-bottom:none;}
.check-list .ci{
  width:26px;height:26px;flex-shrink:0;
  border-radius:9px;
  display:grid;place-items:center;
  font-size:12px;
  color:var(--brand-2);
  background:rgba(43,224,199,.12);
  border:1px solid rgba(43,224,199,.26);
  margin-top:2px;
}
.check-list strong{display:block;font-size:15px;color:var(--text);font-weight:600;margin-bottom:2px;}
.check-list span{font-size:13.5px;color:var(--text-2);}

.stats-row{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
  margin-top:34px;
}
.stat{
  border-radius:var(--radius-md);
  border:1px solid var(--line);
  background:var(--bg-panel);
  padding:20px;
}
.stat .value{
  font-size:26px;
  font-weight:800;
  color:var(--brand-2);
  letter-spacing:-.02em;
}
.stat .label{font-size:13px;color:var(--text-3);margin-top:4px;}

/* ============ 流程时间线 ============ */
.timeline{max-width:860px;margin:0 auto;}
.tl-item{
  position:relative;
  display:grid;
  grid-template-columns:52px 1fr;
  gap:22px;
  padding-bottom:34px;
}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";
  position:absolute;
  left:25px;
  top:52px;
  bottom:0;
  width:1px;
  background:linear-gradient(180deg,rgba(59,140,255,.5),rgba(59,140,255,.08));
}
.tl-item:last-child::before{display:none;}
.tl-num{
  width:52px;height:52px;
  border-radius:16px;
  display:grid;place-items:center;
  font-weight:800;
  font-size:17px;
  color:var(--brand);
  background:var(--bg-elevated);
  border:1px solid rgba(59,140,255,.35);
  box-shadow:0 0 0 4px rgba(59,140,255,.06);
}
.tl-body{
  border-radius:var(--radius-md);
  border:1px solid var(--line);
  background:var(--glass);
  padding:20px 22px;
  transition:border-color .22s ease, transform .22s ease;
}
.tl-body:hover{border-color:rgba(59,140,255,.4);transform:translateY(-2px);}
.tl-body h3{font-size:17px;margin-bottom:8px;}
.tl-body p{font-size:14px;color:var(--text-2);margin:0;}

/* ============ FAQ ============ */
.faq-wrap{max-width:820px;margin:0 auto;}
.acc-item{
  border-radius:var(--radius-md);
  border:1px solid var(--line);
  background:var(--glass);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .22s ease, background .22s ease;
}
.acc-item.active{border-color:rgba(59,140,255,.45);background:rgba(59,140,255,.06);}
.acc-item.active .acc-head::before{
  content:"";
  position:absolute;
  left:0;top:12px;bottom:12px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:linear-gradient(180deg,var(--brand),var(--brand-2));
}
.acc-head{
  position:relative;
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:19px 22px;
  text-align:left;
  font-size:15.5px;
  font-weight:600;
  color:var(--text);
}
.acc-head .ico{
  flex-shrink:0;
  width:26px;height:26px;
  border-radius:9px;
  display:grid;place-items:center;
  font-size:12px;
  color:var(--brand);
  background:rgba(59,140,255,.12);
  border:1px solid rgba(59,140,255,.28);
  transition:transform .28s ease;
}
.acc-item.active .acc-head .ico{transform:rotate(45deg);}
.acc-body{
  max-height:0;
  overflow:hidden;
  transition:max-height .32s ease;
}
.acc-body p{
  padding:0 22px 20px;
  margin:0;
  font-size:14px;
  color:var(--text-2);
}

/* ============ CTA 条 ============ */
.cta-bar{
  position:relative;
  border-radius:22px;
  border:1px solid rgba(59,140,255,.3);
  background:
    radial-gradient(600px 260px at 12% 0%, rgba(59,140,255,.20), transparent 65%),
    linear-gradient(135deg, rgba(18,28,48,.95), rgba(13,21,36,.95));
  padding:44px 40px;
  overflow:hidden;
  box-shadow:var(--shadow-card);
}
.cta-grid{
  display:grid;
  grid-template-columns:1.4fr .6fr;
  gap:30px;
  align-items:center;
}
.cta-bar h2{font-size:clamp(20px,2.4vw,28px);margin-bottom:12px;}
.cta-bar p{color:var(--text-2);font-size:14.5px;margin:0;max-width:640px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end;}
.cta-form{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  margin-top:22px;
  max-width:520px;
}
.cta-form input{
  flex:1 1 220px;
  height:48px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.03);
  color:var(--text);
  padding:0 16px;
  font-size:14px;
  transition:border-color .2s ease, box-shadow .2s ease;
}
.cta-form input::placeholder{color:var(--text-3);}
.cta-form input:focus{
  outline:none;
  border-color:var(--brand);
  box-shadow:0 0 0 4px rgba(59,140,255,.18);
}
.cta-note{font-size:12.5px;color:var(--text-3);margin-top:12px;}
.guarantee{display:flex;flex-wrap:wrap;gap:18px;margin-top:18px;}
.guarantee span{display:flex;align-items:center;gap:7px;font-size:13px;color:var(--text-2);}
.guarantee i{color:var(--brand-2);font-size:12px;}

/* ============ 面包屑 ============ */
.crumb{
  font-size:13px;
  color:var(--text-3);
  padding:18px 0 0;
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  align-items:center;
}
.crumb a{color:var(--text-3);}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:rgba(255,255,255,.2);}
.crumb .now{color:var(--text);}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:96px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(13,21,36,.6),rgba(5,9,16,.95));
  padding:60px 0 26px;
  position:relative;
  z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:36px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:13.5px;color:var(--text-3);max-width:340px;margin:0;}
.footer-col h4{font-size:14px;margin-bottom:16px;color:var(--text);}
.footer-col a{
  display:block;
  font-size:14px;
  color:var(--text-3);
  padding:6px 0;
}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  margin-top:44px;
  padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  font-size:12.5px;
  color:var(--text-3);
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .navlinks a{padding:8px 9px;font-size:13.5px;}
  .hero-grid{gap:40px;}
}
@media (max-width:991px){
  .navlinks,.header-actions .header-login{display:none;}
  .nav-toggle{display:grid;place-items:center;}
  .header-inner{justify-content:space-between;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .safety-wrap{grid-template-columns:1fr;gap:32px;}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .cta-grid{grid-template-columns:1fr;}
  .cta-actions{justify-content:flex-start;}
  .section{padding:70px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:767px){
  body{font-size:15px;}
  .section{padding:54px 0;}
  .section-tight{padding:46px 0;}
  .hero{padding:52px 0 60px;}
  .grid-3,.grid-2{grid-template-columns:1fr;gap:18px;}
  .stats-row{grid-template-columns:1fr;gap:14px;}
  .cta-bar{padding:30px 22px;border-radius:18px;}
  .card{padding:22px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .topbar-actions .topbar-reg{display:none;}
  .tl-item{grid-template-columns:44px 1fr;gap:16px;}
  .tl-num{width:44px;height:44px;border-radius:14px;font-size:15px;}
  .tl-item::before{left:21px;top:44px;}
}
@media (max-width:575px){
  .container{padding:0 16px;}
  .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%;}
  .brand-text{font-size:15px;}
  .acc-head{padding:16px 16px;font-size:14.5px;}
  .acc-body p{padding:0 16px 18px;}
  .cta-form input{flex:1 1 100%;}
  .cta-form .btn-main{width:100%;}
}

/* roulang page: category3 */
:root{
  --bg-base:#070C16;
  --bg-panel:#0D1524;
  --bg-elevated:#121C30;
  --brand:#3B8CFF;
  --brand-2:#2BE0C7;
  --accent:#FFB84D;
  --vip:#A78BFA;
  --txt:#E8EEF9;
  --txt-2:#9BA9C0;
  --txt-3:#6B7A93;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.14);
  --radius:18px;
  --radius-sm:14px;
  --radius-btn:12px;
  --shadow-card:0 20px 45px -20px rgba(0,0,0,.8);
  --shadow-btn:0 10px 30px -8px rgba(59,140,255,.55);
  --bs-body-bg:var(--bg-base);
  --bs-body-color:var(--txt);
  --bs-border-color:var(--line);
  --bs-primary:var(--brand);
  --bs-link-color:var(--brand);
  --bs-link-hover-color:var(--brand-2);
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.72;
  color:var(--txt);
  background-color:var(--bg-base);
  background-image:
    radial-gradient(900px 520px at 84% -6%,rgba(59,140,255,.12),transparent 62%),
    radial-gradient(720px 520px at 6% 6%,rgba(167,139,250,.07),transparent 60%),
    linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:auto,auto,56px 56px,56px 56px;
  background-attachment:fixed;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease}
ul,ol{list-style:none;margin:0;padding:0}
p{margin:0}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.28;letter-spacing:-.01em}
h1{font-size:clamp(28px,4vw,44px)}
h2{font-size:clamp(22px,2.6vw,32px)}
h3{font-size:20px}
h4{font-size:17px}
button,input,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.num{font-family:"Inter","Barlow",system-ui,sans-serif;font-variant-numeric:tabular-nums}

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

/* ---------- 顶部信息条 ---------- */
.topbar{height:38px;background:#050910;border-bottom:1px solid rgba(255,255,255,.05)}
.topbar-inner{height:38px;display:flex;align-items:center;justify-content:space-between;gap:16px;overflow-x:auto;white-space:nowrap}
.topbar-note{font-size:12px;color:var(--txt-2);letter-spacing:.01em}
.topbar-note strong{color:var(--brand-2);font-weight:600}
.topbar-actions{display:flex;align-items:center;gap:14px;font-size:12px}
.topbar-actions a{color:var(--txt-2)}
.topbar-actions a:hover{color:var(--brand)}
.topbar-divider{width:1px;height:12px;background:var(--line-2);display:inline-block}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(7,12,22,.86);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{height:68px;display:flex;align-items:center;gap:24px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#04121F;font-weight:800;font-size:16px;
  box-shadow:0 8px 22px -8px rgba(59,140,255,.75);
}
.brand-text{font-size:16px;font-weight:700;letter-spacing:.01em;color:var(--txt)}
.navlinks{display:flex;align-items:center;gap:26px;margin-left:8px}
.navlinks a{
  position:relative;font-size:14px;color:var(--txt-2);padding:6px 0;white-space:nowrap;
}
.navlinks a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2));
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.navlinks a:hover{color:var(--txt)}
.navlinks a:hover::after{transform:scaleX(1)}
.navlinks a.active{color:var(--txt);font-weight:600}
.navlinks a.active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:16px;margin-left:auto;flex-shrink:0}
.login-link{font-size:14px;color:var(--txt-2)}
.login-link:hover{color:var(--brand)}
.nav-toggle{
  display:none;margin-left:auto;width:40px;height:40px;border-radius:12px;
  background:rgba(255,255,255,.04);border:1px solid var(--line-2);color:var(--txt);
  align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle span{display:block;width:16px;height:2px;background:currentColor;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:16px;height:2px;background:currentColor;
}
.nav-toggle span::before{top:-5px}
.nav-toggle span::after{top:5px}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);border:1px solid transparent;cursor:pointer;
  font-size:15px;font-weight:600;padding:12px 24px;transition:all .22s ease;line-height:1.2;
}
.btn-brand{
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#04121F;box-shadow:var(--shadow-btn);
}
.btn-brand:hover{filter:brightness(1.08);transform:translateY(-1px) scale(1.02);color:#04121F}
.btn-brand:active{transform:translateY(0) scale(.995);box-shadow:0 6px 18px -8px rgba(59,140,255,.6)}
.btn-ghost{
  background:rgba(255,255,255,.04);border-color:var(--line-2);color:var(--txt);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
}
.btn-ghost:hover{background:rgba(59,140,255,.12);border-color:rgba(59,140,255,.5);color:var(--txt)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-block{width:100%}

/* ---------- 通用 ---------- */
.section{padding:88px 0}
.section-tight{padding:64px 0}
.section-head{max-width:760px;margin-bottom:40px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;
  color:var(--brand-2);letter-spacing:.06em;text-transform:uppercase;
  padding:6px 12px;border-radius:999px;border:1px solid rgba(43,224,199,.28);
  background:rgba(43,224,199,.08);margin-bottom:16px;
}
.section-head p{color:var(--txt-2);margin-top:14px;font-size:16px;max-width:680px}
.glass-card{
  background:rgba(255,255,255,.04);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-card);
  padding:26px;
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.glass-card:hover{transform:translateY(-2px);border-color:rgba(59,140,255,.45);box-shadow:0 26px 55px -24px rgba(0,0,0,.9)}
.badge{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;
  padding:5px 12px;border-radius:999px;border:1px solid var(--line-2);
  background:rgba(255,255,255,.06);color:var(--txt-2);
}
.badge-gold{border-color:rgba(255,184,77,.4);background:rgba(255,184,77,.12);color:var(--accent)}
.badge-teal{border-color:rgba(43,224,199,.32);background:rgba(43,224,199,.1);color:var(--brand-2)}
.badge-vip{border-color:rgba(167,139,250,.35);background:rgba(167,139,250,.12);color:var(--vip)}
.badge .dot{width:6px;height:6px;border-radius:50%;background:currentColor;display:inline-block}

/* ---------- 面包屑 ---------- */
.crumb{padding:20px 0 0;font-size:13px;color:var(--txt-3)}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumb li::after{content:"/";margin-left:8px;color:var(--txt-3)}
.crumb li:last-child::after{display:none}
.crumb a:hover{color:var(--brand)}
.crumb li[aria-current]{color:var(--txt);font-weight:500}

/* ---------- Hero ---------- */
.hero{
  position:relative;padding:64px 0 76px;
  background-image:
    linear-gradient(180deg,rgba(7,12,22,.74) 0%,rgba(7,12,22,.9) 62%,var(--bg-base) 100%),
    radial-gradient(680px 420px at 88% 6%,rgba(59,140,255,.22),transparent 62%),
    url('/assets/images/backpic/back-2.webp');
  background-size:auto,auto,cover;
  background-position:center,center,center;
  background-repeat:no-repeat;
}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.hero h1{margin-bottom:18px}
.hero-sub{font-size:17px;color:var(--txt-2);max-width:520px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.trust-list{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.trust-list li{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--txt-2);
  padding:7px 14px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.03);
}
.trust-list li i{width:6px;height:6px;border-radius:50%;background:var(--brand-2);display:inline-block}
.order-card{position:relative;overflow:hidden}
.order-card::before{
  content:"";position:absolute;inset:-40% -20% auto auto;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(43,224,199,.22),transparent 66%);pointer-events:none;
}
.order-card h3{font-size:18px;margin-bottom:6px}
.order-card .order-meta{font-size:13px;color:var(--txt-3);margin-bottom:20px}
.order-price{display:flex;align-items:baseline;gap:8px;margin-bottom:20px}
.order-price .amount{font-size:38px;font-weight:800;background:linear-gradient(135deg,var(--accent),#FFE0A8);
  -webkit-background-clip:text;background-clip:text;color:transparent}
.order-price .unit{font-size:13px;color:var(--txt-3)}
.order-list{display:flex;flex-direction:column;gap:12px;margin-bottom:24px}
.order-list li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--txt-2)}
.order-list li b{color:var(--brand-2);font-weight:700}
.order-tip{font-size:12px;color:var(--txt-3);margin-top:14px}

/* ---------- 对比表 ---------- */
.table-wrap{
  border-radius:var(--radius);border:1px solid var(--line);overflow:hidden;
  box-shadow:var(--shadow-card);background:rgba(13,21,36,.7);
}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
table.benefit-table{width:100%;min-width:840px;border-collapse:collapse;font-size:14px}
.benefit-table thead th{
  background:var(--bg-elevated);color:var(--txt);font-weight:700;font-size:14px;
  padding:18px 16px;text-align:center;border-bottom:1px solid var(--line);white-space:nowrap;
}
.benefit-table thead th:first-child{text-align:left}
.benefit-table tbody td{
  padding:17px 16px;text-align:center;border-bottom:1px solid rgba(255,255,255,.06);
  color:var(--txt-2);height:56px;
}
.benefit-table tbody td:first-child{text-align:left;color:var(--txt);font-weight:600}
.benefit-table tbody tr:nth-child(even){background:rgba(255,255,255,.03)}
.benefit-table tbody tr:last-child td{border-bottom:none}
.benefit-table .col-reco{background:rgba(255,255,255,.06)}
.benefit-table .no{color:var(--txt-3)}
.benefit-table .yes{color:var(--brand-2);font-weight:700}
.benefit-table .vip-cell{color:var(--vip);font-weight:600}
.tag-reco{
  display:inline-block;margin-left:6px;padding:2px 8px;border-radius:999px;font-size:11px;font-weight:700;
  color:#2A1B03;background:linear-gradient(135deg,var(--accent),#FFD79A);
}
.reco-head{position:relative}
.reco-head::after{
  content:"";position:absolute;inset:0;border:1px solid rgba(255,184,77,.45);border-radius:6px;pointer-events:none;
}
.table-note{font-size:13px;color:var(--txt-3);margin-top:16px}

/* ---------- 时间线 ---------- */
.timeline{position:relative;max-width:820px;margin:0 auto}
.timeline::before{
  content:"";position:absolute;left:23px;top:14px;bottom:26px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,var(--brand),rgba(43,224,199,.4),rgba(107,122,147,.15));
}
.tl-item{position:relative;padding-left:78px;padding-bottom:38px}
.tl-item:last-child{padding-bottom:0}
.tl-num{
  position:absolute;left:0;top:0;width:48px;height:48px;border-radius:50%;
  display:grid;place-items:center;font-weight:800;font-size:17px;color:#04121F;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  box-shadow:0 10px 26px -10px rgba(59,140,255,.85);
  font-variant-numeric:tabular-nums;
}
.tl-body{background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:var(--radius-sm);padding:20px 22px}
.tl-body h3{font-size:17px;margin-bottom:8px}
.tl-body p{font-size:14px;color:var(--txt-2)}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}

/* ---------- 支付通道卡片 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.pay-card{display:flex;flex-direction:column;gap:14px}
.pay-icon{
  width:48px;height:48px;border-radius:14px;display:grid;place-items:center;font-weight:800;font-size:18px;
  background:rgba(59,140,255,.14);border:1px solid rgba(59,140,255,.32);color:var(--brand);
}
.pay-card h3{font-size:18px}
.pay-card p{font-size:14px;color:var(--txt-2)}
.pay-facts{display:flex;flex-direction:column;gap:9px;margin-top:4px}
.pay-facts li{display:flex;justify-content:space-between;gap:12px;font-size:13px;color:var(--txt-2);
  padding-bottom:9px;border-bottom:1px dashed rgba(255,255,255,.08)}
.pay-facts li:last-child{border-bottom:none;padding-bottom:0}
.pay-facts li b{color:var(--txt);font-weight:600}

/* ---------- 图文区 ---------- */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}
.split-media{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-card)}
.split-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.split-copy h2{margin-bottom:16px}
.split-copy p{color:var(--txt-2);font-size:15px}
.check-list{display:flex;flex-direction:column;gap:12px;margin-top:22px}
.check-list li{display:flex;gap:12px;font-size:14px;color:var(--txt-2)}
.check-list li b{color:var(--brand-2);font-weight:800}

/* ---------- FAQ ---------- */
.faq-list{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{
  position:relative;background:rgba(255,255,255,.04);border:1px solid var(--line);
  border-radius:var(--radius-sm);overflow:hidden;transition:border-color .2s ease,background-color .2s ease;
}
.faq-item[open]{border-color:rgba(59,140,255,.42);background:rgba(59,140,255,.06)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 22px;font-size:16px;font-weight:600;color:var(--txt);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{
  flex-shrink:0;width:26px;height:26px;border-radius:8px;display:grid;place-items:center;
  border:1px solid var(--line-2);color:var(--brand);font-style:normal;font-size:16px;line-height:1;
  transition:transform .22s ease,border-color .22s ease;
}
.faq-item[open] .faq-icon{transform:rotate(45deg);border-color:rgba(59,140,255,.55)}
.faq-body{padding:0 22px 22px;font-size:14px;color:var(--txt-2)}
.faq-item[open]::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:linear-gradient(180deg,var(--brand),var(--brand-2));
}

/* ---------- CTA / 表单 ---------- */
.cta-band{
  border-radius:22px;padding:52px 44px;position:relative;overflow:hidden;
  background:
    radial-gradient(600px 320px at 88% 8%,rgba(59,140,255,.24),transparent 62%),
    linear-gradient(135deg,rgba(18,28,48,.96),rgba(9,15,26,.96));
  border:1px solid rgba(59,140,255,.24);
  box-shadow:var(--shadow-card);
}
.cta-band h2{margin-bottom:14px}
.cta-band p{color:var(--txt-2);max-width:640px}
.cta-form{display:flex;gap:12px;margin-top:28px;max-width:620px;flex-wrap:wrap}
.cta-form input{
  flex:1 1 260px;height:48px;padding:0 16px;border-radius:var(--radius-btn);
  background:rgba(255,255,255,.03);border:1px solid var(--line-2);color:var(--txt);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.cta-form input::placeholder{color:var(--txt-3)}
.cta-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(59,140,255,.18)}
.cta-points{display:flex;flex-wrap:wrap;gap:20px;margin-top:24px}
.cta-points li{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--txt-2)}
.cta-points li b{color:var(--brand-2);font-weight:800}
.cta-terms{font-size:12px;color:var(--txt-3);margin-top:16px}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:24px;padding:64px 0 28px;background:#050910;border-top:1px solid var(--line);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--txt-3);max-width:360px}
.footer-col h4{font-size:14px;font-weight:700;color:var(--txt);margin-bottom:16px}
.footer-col a{display:block;font-size:14px;color:var(--txt-3);padding:6px 0}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--txt-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .hero-grid{gap:36px}
  .split{gap:32px}
}
@media (max-width:991px){
  .navlinks{
    position:absolute;top:100%;left:0;right:0;
    display:flex;flex-direction:column;align-items:stretch;gap:2px;margin-left:0;
    padding:14px 20px 24px;
    background:rgba(9,15,26,.985);
    -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
    border-bottom:1px solid var(--line);
    max-height:calc(100vh - 68px);overflow-y:auto;
    opacity:0;visibility:hidden;transform:translateY(-8px);
    transition:opacity .22s ease,transform .22s ease,visibility .22s;
  }
  .navlinks.is-open{opacity:1;visibility:visible;transform:none}
  .navlinks a{padding:13px 6px;border-bottom:1px solid rgba(255,255,255,.05);font-size:15px}
  .navlinks a::after{display:none}
  .navlinks a.active{color:var(--brand)}
  .header-actions{display:none}
  .nav-toggle{display:inline-flex}
  .hero{padding:48px 0 56px}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr}
  .split-media{order:-1}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding:64px 0}
  .cta-band{padding:40px 26px}
}
@media (max-width:640px){
  body{font-size:15px}
  .grid-3{grid-template-columns:1fr}
  .topbar-actions{gap:10px}
  .topbar-note{max-width:200px;overflow:hidden;text-overflow:ellipsis}
  .tl-item{padding-left:60px}
  .tl-num{width:40px;height:40px;font-size:15px}
  .timeline::before{left:19px}
  .glass-card{padding:20px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
  .btn{width:100%}
  .hero-cta .btn{width:auto;flex:1 1 auto}
}

/* roulang page: category2 */
:root{
  --bg-base:#070C16;
  --bg-panel:#0D1524;
  --bg-elevated:#121C30;
  --brand:#3B8CFF;
  --brand-2:#2BE0C7;
  --accent:#FFB84D;
  --vip:#A78BFA;
  --text:#E8EEF9;
  --muted:#9BA9C0;
  --dim:#6B7A93;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --glass:rgba(255,255,255,.04);
  --glass-2:rgba(255,255,255,.06);
  --radius:18px;
  --radius-sm:14px;
  --radius-btn:12px;
  --shadow-card:0 20px 45px -20px rgba(0,0,0,.8);
  --shadow-btn:0 10px 30px -8px rgba(59,140,255,.55);
  --container:1200px;
  --bs-body-bg:#070C16;
  --bs-body-color:#E8EEF9;
  --bs-primary:#3B8CFF;
  --bs-border-color:rgba(255,255,255,.08);
  --bs-link-color:#3B8CFF;
  --bs-link-hover-color:#7FB2FF;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background-color:var(--bg-base);
  background-image:
    radial-gradient(900px 620px at 84% -10%, rgba(59,140,255,.12), transparent 62%),
    radial-gradient(760px 520px at 4% 6%, rgba(167,139,250,.09), transparent 64%),
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size:auto,auto,64px 64px,64px 64px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .22s ease;}
a:hover{color:#7FB2FF;}
h1,h2,h3,h4{margin:0 0 14px;font-weight:800;letter-spacing:-.01em;line-height:1.3;}
p{margin:0 0 16px;}
ul{margin:0;padding:0;list-style:none;}
button,input{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 20px;
}
.num{font-family:"Inter","Barlow",system-ui,sans-serif;font-variant-numeric:tabular-nums;}

/* ============ 顶部信息条 ============ */
.topbar{
  background:#050910;
  border-bottom:1px solid rgba(255,255,255,.05);
  min-height:38px;
}
.topbar-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:38px;
}
.topbar-note{
  margin:0;
  font-size:12px;
  color:var(--muted);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.topbar-actions{
  display:flex;
  align-items:center;
  gap:12px;
  font-size:12px;
  flex-shrink:0;
}
.topbar-actions a{color:var(--muted);}
.topbar-actions a:hover{color:var(--brand);}
.topbar-actions .divider{width:1px;height:12px;background:rgba(255,255,255,.16);}

/* ============ 主导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(7,12,22,.82);
  transition:background .25s ease, box-shadow .25s ease, border-color .25s ease;
  border-bottom:1px solid transparent;
}
.site-header.scrolled{
  background:rgba(7,12,22,.9);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
  box-shadow:0 18px 40px -30px rgba(0,0,0,.9);
}
.navbar-inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:68px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--text);
  font-weight:800;
  font-size:17px;
  letter-spacing:-.01em;
  flex-shrink:0;
}
.brand:hover{color:var(--text);}
.brand-mark{
  width:34px;
  height:34px;
  display:grid;
  place-items:center;
  border-radius:11px;
  font-size:16px;
  font-weight:800;
  color:#04101F;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  box-shadow:0 8px 22px -10px rgba(59,140,255,.9);
}
.brand-text{white-space:nowrap;}
.navlinks{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
  flex-wrap:nowrap;
}
.navlinks a{
  position:relative;
  display:block;
  padding:10px 12px;
  font-size:14.5px;
  color:var(--muted);
  border-radius:10px;
  white-space:nowrap;
  transition:color .2s ease, background .2s ease;
}
.navlinks a:hover{color:var(--text);background:rgba(255,255,255,.05);}
.navlinks a.active{color:var(--text);font-weight:600;}
.navlinks a.active::after{
  content:"";
  position:absolute;
  left:12px;
  right:12px;
  bottom:2px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2));
}
.nav-item-cta{display:none;}
.nav-cta{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  border-radius:12px;
  border:1px solid var(--line);
  background:var(--glass);
  padding:0;
  cursor:pointer;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  margin-left:auto;
}
.nav-toggle span{
  display:block;
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--text);
  transition:transform .25s ease, opacity .25s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 22px;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:transform .2s ease, box-shadow .22s ease, background .22s ease, border-color .22s ease, color .22s ease;
}
.btn-primary-glow{
  color:#04101F;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-2) 100%);
  box-shadow:var(--shadow-btn);
}
.btn-primary-glow:hover{
  color:#04101F;
  filter:brightness(1.08);
  transform:scale(1.02) translateY(-1px);
  box-shadow:0 14px 34px -8px rgba(59,140,255,.7);
}
.btn-primary-glow:active{transform:translateY(1px) scale(.99);box-shadow:0 6px 18px -8px rgba(59,140,255,.6);}
.btn-ghost{
  color:var(--text);
  background:var(--glass);
  border-color:var(--line-strong);
}
.btn-ghost:hover{
  color:var(--text);
  background:rgba(59,140,255,.14);
  border-color:rgba(59,140,255,.5);
  transform:translateY(-1px);
}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}

/* ============ 面包屑 ============ */
.crumbs{
  padding:22px 0 0;
  font-size:13px;
  color:var(--dim);
}
.crumbs ol{display:flex;flex-wrap:wrap;gap:8px;align-items:center;padding:0;margin:0;list-style:none;}
.crumbs li::after{content:"/";margin-left:8px;color:rgba(255,255,255,.18);}
.crumbs li:last-child::after{content:"";margin:0;}
.crumbs a{color:var(--dim);}
.crumbs a:hover{color:var(--brand);}
.crumbs .current{color:var(--text);}

/* ============ Hero ============ */
.cat-hero{
  position:relative;
  padding:56px 0 72px;
  overflow:hidden;
}
.cat-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  opacity:.28;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 88%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 88%);
  pointer-events:none;
}
.cat-hero .container{position:relative;}
.hero-grid{
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:48px;
  align-items:center;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:999px;
  border:1px solid rgba(59,140,255,.35);
  background:rgba(59,140,255,.1);
  color:#9EC5FF;
  font-size:12.5px;
  letter-spacing:.04em;
  margin-bottom:20px;
}
.eyebrow .dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--brand-2);
  box-shadow:0 0 10px rgba(43,224,199,.9);
}
.cat-hero h1{
  font-size:clamp(28px,4vw,44px);
  margin-bottom:18px;
}
.cat-hero h1 em{
  font-style:normal;
  background:linear-gradient(120deg,var(--brand),var(--brand-2));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-sub{
  font-size:17px;
  color:var(--muted);
  max-width:560px;
  margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.trust-row{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
}
.trust-item{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 14px;
  border-radius:999px;
  border:1px solid var(--line);
  background:var(--glass);
  font-size:13px;
  color:var(--muted);
}
.trust-item i{color:var(--brand-2);font-style:normal;font-size:13px;}
.hero-visual{position:relative;}
.hero-shot{
  position:relative;
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow-card);
  aspect-ratio:16/10;
}
.hero-shot img{width:100%;height:100%;object-fit:cover;}
.hero-shot::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(7,12,22,.1) 0%,rgba(7,12,22,.86) 100%);
}
.hero-floating{
  position:absolute;
  left:20px;
  right:20px;
  bottom:20px;
  padding:18px 20px;
  border-radius:var(--radius-sm);
  background:rgba(13,21,36,.72);
  border:1px solid var(--line-strong);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
}
.hero-floating .lvl{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:14px;
  color:var(--muted);
  margin-bottom:10px;
}
.chip-vip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 10px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  color:#E9E2FF;
  background:rgba(167,139,250,.16);
  border:1px solid rgba(167,139,250,.45);
}
.chip-vip::before{
  content:"";
  width:6px;height:6px;border-radius:50%;
  background:linear-gradient(135deg,var(--vip),var(--brand));
}
.hero-floating ul{display:grid;gap:6px;}
.hero-floating li{
  font-size:13.5px;
  color:var(--muted);
  display:flex;
  gap:8px;
}
.hero-floating li span{color:var(--brand-2);}

/* ============ 页面主体网格 ============ */
.page-body{padding:72px 0 96px;}
.page-grid{
  display:grid;
  grid-template-columns:240px minmax(0,1fr);
  gap:44px;
  align-items:start;
}
.toc-card{
  position:sticky;
  top:108px;
  padding:22px 20px;
  border-radius:var(--radius);
  background:var(--glass);
  border:1px solid var(--line);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
}
.toc-title{
  font-size:13px;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--dim);
  margin-bottom:14px;
}
.toc-links{display:grid;gap:2px;}
.toc-links a{
  display:block;
  padding:9px 12px;
  border-radius:10px;
  font-size:14px;
  color:var(--muted);
  border-left:2px solid transparent;
  transition:all .2s ease;
}
.toc-links a:hover{color:var(--text);background:rgba(255,255,255,.05);}
.toc-links a.active{
  color:var(--text);
  background:rgba(59,140,255,.12);
  border-left-color:var(--brand);
  font-weight:600;
}

/* ============ Zigzag 内容块 ============ */
.zig-block{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:38px;
  align-items:center;
  padding:34px 0;
  border-bottom:1px solid rgba(255,255,255,.05);
}
.zig-block:last-of-type{border-bottom:none;}
.zig-block.flip .zig-media{order:2;}
.zig-block.flip .zig-body{order:1;}
.zig-media{
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  aspect-ratio:16/10;
  background:var(--bg-panel);
}
.zig-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.zig-block:hover .zig-media img{transform:scale(1.04);}
.zig-body h2{font-size:clamp(21px,2.2vw,27px);margin-bottom:14px;}
.zig-body p{color:var(--muted);font-size:15.5px;margin-bottom:14px;}
.tag{
  display:inline-flex;
  align-items:center;
  padding:4px 12px;
  border-radius:999px;
  font-size:12.5px;
  font-weight:600;
  color:#9EC5FF;
  background:rgba(59,140,255,.12);
  border:1px solid rgba(59,140,255,.32);
  margin-bottom:14px;
}
.tag.tag-cyan{color:#9BF2E4;background:rgba(43,224,199,.12);border-color:rgba(43,224,199,.32);}
.tag.tag-gold{color:#FFD79A;background:rgba(255,184,77,.12);border-color:rgba(255,184,77,.32);}
.tag.tag-vip{color:#DCCFFF;background:rgba(167,139,250,.14);border-color:rgba(167,139,250,.34);}
.tick-list{display:grid;gap:9px;margin-top:6px;}
.tick-list li{
  display:flex;
  gap:10px;
  font-size:14.5px;
  color:var(--muted);
  line-height:1.7;
}
.tick-list li::before{
  content:"✓";
  flex-shrink:0;
  width:20px;height:20px;
  margin-top:3px;
  display:grid;place-items:center;
  border-radius:6px;
  font-size:12px;
  color:#04101F;
  background:linear-gradient(135deg,var(--brand-2),var(--brand));
}

/* ============ 等级速览卡片 ============ */
.section-head{margin-bottom:34px;}
.section-head h2{font-size:clamp(22px,2.6vw,32px);margin-bottom:12px;}
.section-head p{color:var(--muted);font-size:15.5px;max-width:720px;margin:0;}
.level-wall{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
  margin-top:8px;
}
.level-card{
  position:relative;
  display:flex;
  flex-direction:column;
  padding:26px 22px;
  border-radius:var(--radius);
  background:var(--glass);
  border:1px solid var(--line);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
  transition:transform .22s ease, border-color .22s ease, box-shadow .22s ease;
}
.level-card:hover{
  transform:translateY(-3px);
  border-color:rgba(59,140,255,.45);
  box-shadow:0 28px 55px -24px rgba(0,0,0,.9);
}
.level-card.recommend{
  background:rgba(59,140,255,.09);
  border-color:rgba(255,184,77,.45);
  box-shadow:0 0 0 1px rgba(255,184,77,.22), 0 24px 50px -24px rgba(0,0,0,.9);
}
.reco-badge{
  position:absolute;
  top:-11px;
  left:22px;
  padding:3px 12px;
  border-radius:999px;
  font-size:12px;
  font-weight:700;
  color:#2A1A00;
  background:linear-gradient(135deg,#FFD79A,var(--accent));
}
.level-card h3{font-size:19px;margin-bottom:6px;}
.level-price{
  font-size:26px;
  font-weight:800;
  color:var(--accent);
  margin-bottom:4px;
  letter-spacing:-.02em;
}
.level-price span{font-size:13px;font-weight:500;color:var(--dim);margin-left:4px;}
.level-desc{font-size:13.5px;color:var(--dim);margin-bottom:16px;}
.level-list{display:grid;gap:8px;margin-bottom:22px;flex:1;}
.level-list li{
  font-size:14px;
  color:var(--muted);
  display:flex;
  gap:8px;
  line-height:1.6;
}
.level-list li::before{content:"·";color:var(--brand);font-weight:800;}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;margin:0 auto;}
.accordion-item{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius-sm) !important;
  margin-bottom:12px;
  overflow:hidden;
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  transition:border-color .22s ease, background .22s ease;
}
.accordion-item:has(.accordion-button:not(.collapsed)){
  border-color:rgba(59,140,255,.45);
  background:rgba(59,140,255,.06);
}
.accordion-button{
  position:relative;
  width:100%;
  padding:20px 56px 20px 22px;
  background:transparent;
  border:0;
  box-shadow:none !important;
  color:var(--text);
  font-size:16px;
  font-weight:600;
  text-align:left;
  line-height:1.6;
  transition:color .2s ease;
}
.accordion-button:not(.collapsed){color:#AED2FF;}
.accordion-button::before{
  content:"";
  position:absolute;
  left:0;top:14px;bottom:14px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:linear-gradient(180deg,var(--brand),var(--brand-2));
  opacity:0;
  transition:opacity .22s ease;
}
.accordion-button:not(.collapsed)::before{opacity:1;}
.accordion-button::after{
  content:"+";
  position:absolute;
  right:20px;
  top:50%;
  transform:translateY(-50%);
  width:auto;height:auto;
  background-image:none !important;
  font-size:22px;
  font-weight:400;
  color:var(--brand);
  line-height:1;
  transition:transform .25s ease,color .25s ease;
}
.accordion-button:not(.collapsed)::after{transform:translateY(-50%) rotate(45deg);color:var(--brand-2);}
.accordion-button:focus{outline:none;}
.accordion-button:focus-visible{outline:2px solid var(--brand);outline-offset:-2px;}
.accordion-body{
  padding:0 22px 22px;
  color:var(--muted);
  font-size:15px;
  line-height:1.8;
}

/* ============ CTA ============ */
.cta-section{padding:0 0 96px;}
.cta-card{
  position:relative;
  padding:44px 40px;
  border-radius:22px;
  background:linear-gradient(140deg,rgba(59,140,255,.14),rgba(13,21,36,.9) 55%);
  border:1px solid rgba(59,140,255,.3);
  box-shadow:var(--shadow-card);
  overflow:hidden;
}
.cta-card::after{
  content:"";
  position:absolute;
  right:-120px;top:-120px;
  width:340px;height:340px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(43,224,199,.22),transparent 68%);
  pointer-events:none;
}
.cta-grid{
  position:relative;
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:40px;
  align-items:center;
}
.cta-grid h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:12px;}
.cta-grid p{color:var(--muted);font-size:15.5px;margin:0;}
.cta-form{display:grid;gap:12px;}
.cta-form input{
  height:48px;
  padding:0 16px;
  border-radius:var(--radius-btn);
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.03);
  color:var(--text);
  font-size:15px;
  transition:border-color .2s ease, box-shadow .2s ease;
}
.cta-form input::placeholder{color:var(--dim);}
.cta-form input:focus{
  outline:none;
  border-color:var(--brand);
  box-shadow:0 0 0 4px rgba(59,140,255,.18);
}
.cta-note{
  font-size:13px;
  color:var(--dim);
  margin:14px 0 0;
  line-height:1.7;
}
.form-alert{
  margin-top:14px;
  padding:12px 16px;
  border-radius:12px;
  font-size:13.5px;
  color:#FFE1B4;
  background:rgba(255,184,77,.12);
  border:1px solid rgba(255,184,77,.36);
}
.assure-row{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:18px;
}
.assure-row span{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13px;
  color:var(--muted);
  padding:6px 12px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
}
.assure-row span i{font-style:normal;color:var(--brand-2);}

/* ============ 页脚 ============ */
.site-footer{
  border-top:1px solid var(--line);
  background:rgba(5,9,16,.7);
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:36px;
  padding-bottom:40px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{
  font-size:14px;
  color:var(--dim);
  line-height:1.8;
  max-width:340px;
  margin:0;
}
.footer-col h4{
  font-size:14px;
  font-weight:700;
  color:var(--text);
  margin-bottom:16px;
}
.footer-col a{
  display:block;
  font-size:14px;
  color:var(--dim);
  padding:5px 0;
}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:space-between;
  padding-top:22px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--dim);
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .page-grid{grid-template-columns:200px minmax(0,1fr);gap:32px;}
  .level-wall{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:991.98px){
  .nav-toggle{display:flex;}
  .nav-cta{display:none;}
  .navlinks{
    position:fixed;
    top:0;right:0;
    height:100vh;
    width:min(88vw,360px);
    padding:96px 22px 32px;
    flex-direction:column;
    align-items:stretch;
    gap:6px;
    background:rgba(9,14,26,.98);
    -webkit-backdrop-filter:blur(18px);
    backdrop-filter:blur(18px);
    border-left:1px solid var(--line);
    transform:translateX(105%);
    transition:transform .3s ease;
    z-index:70;
    overflow-y:auto;
    margin-left:0;
  }
  .navlinks.open{transform:translateX(0);}
  .navlinks a{
    padding:14px 14px;
    font-size:15px;
    border-radius:12px;
  }
  .navlinks a.active{background:rgba(59,140,255,.14);}
  .navlinks a.active::after{display:none;}
  .nav-item-cta{
    display:flex !important;
    justify-content:center;
    margin-top:18px;
    height:48px;
    color:#04101F !important;
    font-weight:700;
    background:linear-gradient(135deg,var(--brand),var(--brand-2));
    box-shadow:var(--shadow-btn);
  }
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .hero-sub{max-width:none;}
  .zig-block{grid-template-columns:1fr;gap:22px;padding:26px 0;}
  .zig-block.flip .zig-media{order:1;}
  .zig-block.flip .zig-body{order:2;}
  .page-grid{grid-template-columns:1fr;gap:26px;}
  .toc-card{
    position:static;
    padding:14px;
  }
  .toc-title{display:none;}
  .toc-links{
    display:flex;
    gap:8px;
    overflow-x:auto;
    padding-bottom:4px;
    scrollbar-width:none;
  }
  .toc-links::-webkit-scrollbar{display:none;}
  .toc-links a{
    flex:0 0 auto;
    border-left:none;
    border:1px solid var(--line);
    padding:8px 14px;
    font-size:13.5px;
    white-space:nowrap;
  }
  .toc-links a.active{border-color:rgba(59,140,255,.5);}
  .cta-grid{grid-template-columns:1fr;gap:26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .page-body{padding:48px 0 64px;}
  .cta-section{padding:0 0 64px;}
}
@media (max-width:767.98px){
  body{font-size:15px;}
  .topbar-actions .divider{display:none;}
  .topbar-actions a:last-child{display:none;}
  .cat-hero{padding:36px 0 52px;}
  .hero-actions{gap:10px;}
  .hero-actions .btn{width:100%;}
  .level-wall{grid-template-columns:1fr;}
  .cta-card{padding:30px 22px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .accordion-button{font-size:15px;padding:16px 50px 16px 18px;}
}
@media (max-width:519.98px){
  .container{padding:0 16px;}
  .brand-text{font-size:15px;}
  .trust-item{font-size:12.5px;padding:6px 12px;}
  .assure-row{gap:8px;}
}

/* roulang page: category4 */
:root{
  --bg-base:#070C16;
  --bg-panel:#0D1524;
  --bg-elevated:#121C30;
  --brand:#3B8CFF;
  --brand-2:#2BE0C7;
  --accent:#FFB84D;
  --vip:#A78BFA;
  --text:#E8EEF9;
  --text-2:#9BA9C0;
  --text-3:#6B7A93;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --glass:rgba(255,255,255,.04);
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --r-pill:999px;
  --shadow-card:0 20px 45px -20px rgba(0,0,0,.8);
  --shadow-btn:0 10px 30px -8px rgba(59,140,255,.55);
  --sec-gap:88px;
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --font-num:"Inter","Barlow",system-ui,sans-serif;
  --bs-body-bg:var(--bg-base);
  --bs-body-color:var(--text);
  --bs-primary:var(--brand);
  --bs-border-color:var(--line);
  --bs-link-color:var(--brand);
  --bs-link-hover-color:var(--brand-2);
  --bs-font-sans-serif:var(--font-cn);
  --bs-border-radius:var(--r-sm);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background-color:var(--bg-base);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  position:relative;
  min-height:100vh;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:66px 66px;
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background:
    radial-gradient(720px 480px at 82% -6%,rgba(59,140,255,.16),transparent 66%),
    radial-gradient(620px 420px at 6% 46%,rgba(167,139,250,.11),transparent 68%),
    linear-gradient(180deg,rgba(7,12,22,0) 40%,rgba(7,12,22,.85) 100%);
}
h1,h2,h3,h4,h5{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.28;color:var(--text);}
p{margin:0;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-2);}
img{max-width:100%;display:block;}
button{font-family:inherit;}
input,textarea,select{font-family:inherit;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;}
.container{
  max-width:1200px;
  padding-left:20px;
  padding-right:20px;
}
.site-header,main,.site-footer,footer{position:relative;z-index:1;}

/* ---------- 顶部信息条 ---------- */
.topbar{
  background:#050910;
  border-bottom:1px solid rgba(255,255,255,.05);
  font-size:12px;
  color:var(--text-2);
}
.topbar .container{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:38px;
  padding-top:6px;
  padding-bottom:6px;
}
.topbar-note{
  display:flex;
  align-items:center;
  gap:8px;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.topbar-dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--brand-2);
  box-shadow:0 0 10px rgba(43,224,199,.85);
  flex:0 0 auto;
}
.topbar-links{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.topbar-links span{color:rgba(255,255,255,.14);}
.topbar-links a{color:var(--text-2);font-size:12px;}
.topbar-links a:hover{color:var(--text);}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1040;
  background:rgba(7,12,22,.86);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-stuck{
  background:rgba(7,12,22,.78);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
  box-shadow:0 12px 34px -24px rgba(0,0,0,.95);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:22px;
  height:68px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:var(--text);
  flex:0 0 auto;
}
.brand:hover{color:var(--text);}
.brand-mark{
  width:34px;height:34px;
  border-radius:10px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#04121f;
  font-weight:800;
  font-size:17px;
  box-shadow:0 8px 22px -10px rgba(59,140,255,.9);
}
.brand-text{
  font-weight:700;
  font-size:15.5px;
  letter-spacing:-.01em;
  white-space:nowrap;
}
.navlinks{
  display:flex;
  align-items:center;
  gap:2px;
  margin-left:auto;
}
.navlinks a{
  position:relative;
  display:inline-block;
  padding:10px 12px;
  font-size:14px;
  color:var(--text-2);
  border-radius:10px;
  white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.navlinks a:hover{color:var(--text);background:rgba(255,255,255,.05);}
.navlinks a.active{color:var(--text);}
.navlinks a.active::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:3px;
  height:2px;
  border-radius:2px;
  background:var(--brand);
}
.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
}
.login-link{
  font-size:14px;
  color:var(--text-2);
  padding:8px 4px;
}
.login-link:hover{color:var(--text);}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:12px;
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--text);
  align-items:center;
  justify-content:center;
  cursor:pointer;
  margin-left:auto;
}
.nav-toggle span{
  display:block;width:18px;height:2px;background:var(--text);border-radius:2px;position:relative;
}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* 移动端抽屉 */
.drawer{
  position:fixed;
  inset:0;
  z-index:1100;
  background:rgba(5,9,16,.97);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  transform:translateY(-100%);
  transition:transform .32s ease;
  display:flex;
  flex-direction:column;
  padding:22px 20px 28px;
  overflow-y:auto;
}
.drawer.open{transform:translateY(0);}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
.drawer-close{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line);
  background:var(--glass);color:var(--text);font-size:18px;cursor:pointer;
}
.drawer-nav{display:flex;flex-direction:column;gap:6px;}
.drawer-nav a{
  padding:14px 16px;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:var(--glass);
  color:var(--text-2);
  font-size:15px;
}
.drawer-nav a.active{color:var(--text);border-color:rgba(59,140,255,.45);background:rgba(59,140,255,.12);}
.drawer-foot{
  margin-top:auto;
  padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;
  flex-direction:column;
  gap:10px;
}

/* ---------- 按钮 ---------- */
.btn-main,.btn-ghost,.btn-accent{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:var(--r-sm);
  font-size:15px;
  font-weight:700;
  padding:12px 22px;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
  text-decoration:none;
  line-height:1.2;
}
.btn-main{
  background:linear-gradient(135deg,#3B8CFF 0%,#2BE0C7 135%);
  color:#04121f;
  box-shadow:var(--shadow-btn);
}
.btn-main:hover{
  color:#04121f;
  filter:brightness(1.08);
  transform:scale(1.02);
}
.btn-main:active{transform:translateY(1px) scale(.99);box-shadow:0 6px 18px -10px rgba(59,140,255,.8);}
.btn-accent{
  background:linear-gradient(135deg,#3B8CFF 0%,#FFB84D 130%);
  color:#1a1000;
  box-shadow:0 10px 30px -8px rgba(255,184,77,.45);
}
.btn-accent:hover{color:#1a1000;filter:brightness(1.07);transform:scale(1.02);}
.btn-ghost{
  background:var(--glass);
  border-color:var(--line-strong);
  color:var(--text);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{
  color:var(--text);
  background:rgba(59,140,255,.12);
  border-color:rgba(59,140,255,.5);
}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:10px;}

/* ---------- 面包屑 ---------- */
.crumb{
  padding-top:22px;
  font-size:13px;
  color:var(--text-3);
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  align-items:center;
}
.crumb a{color:var(--text-3);}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:rgba(255,255,255,.2);}
.crumb .now{color:var(--text);}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:64px 0 76px;
  overflow:hidden;
}
.hero-bg{
  position:absolute;
  inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center right;
  opacity:.32;
  -webkit-mask-image:linear-gradient(90deg,rgba(0,0,0,.9) 0%,rgba(0,0,0,.35) 58%,rgba(0,0,0,0) 100%);
  mask-image:linear-gradient(90deg,rgba(0,0,0,.9) 0%,rgba(0,0,0,.35) 58%,rgba(0,0,0,0) 100%);
  z-index:0;
}
.hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(7,12,22,.55) 0%,rgba(7,12,22,.88) 62%,var(--bg-base) 100%);
  z-index:0;
}
.hero .container{position:relative;z-index:1;}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:48px;
  align-items:center;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:var(--r-pill);
  border:1px solid rgba(59,140,255,.35);
  background:rgba(59,140,255,.12);
  color:#BBD5FF;
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.02em;
}
.hero h1{
  font-size:clamp(28px,4vw,44px);
  margin:20px 0 16px;
}
.hero-sub{
  font-size:clamp(15px,1.5vw,17px);
  color:var(--text-2);
  max-width:560px;
  line-height:1.85;
}
.hero-cta{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:28px;
}
.trust-row{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:30px;
}
.trust-item{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 14px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:var(--glass);
  font-size:13px;
  color:var(--text-2);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
}
.trust-item i{
  width:8px;height:8px;border-radius:50%;
  background:var(--brand-2);
  box-shadow:0 0 10px rgba(43,224,199,.7);
}
.hero-panel{
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:rgba(255,255,255,.045);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
  padding:26px;
}
.hero-panel h3{font-size:17px;margin-bottom:6px;}
.hero-panel .panel-note{font-size:13px;color:var(--text-3);margin-bottom:18px;}
.panel-list{display:flex;flex-direction:column;gap:12px;}
.panel-list li{
  display:flex;
  gap:12px;
  align-items:flex-start;
  font-size:14px;
  color:var(--text-2);
  padding:12px 14px;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
}
.panel-list b{color:var(--text);font-weight:600;}
.panel-num{
  flex:0 0 auto;
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  color:var(--brand-2);
  font-weight:700;
  font-size:13px;
  padding-top:2px;
}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sec-gap) 0;}
.section-tight{padding:64px 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:36px;
  flex-wrap:wrap;
}
.section-head h2{font-size:clamp(22px,2.6vw,32px);}
.section-head p{
  margin-top:10px;
  color:var(--text-2);
  font-size:15px;
  max-width:640px;
}
.section-more{
  font-size:14px;
  color:var(--brand);
  border-bottom:1px solid rgba(59,140,255,.4);
  padding-bottom:2px;
}
.section-more:hover{border-bottom-color:var(--brand-2);}

/* ---------- 数据规格表 ---------- */
.table-shell{
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
  overflow:hidden;
}
.table-scroll{overflow-x:auto;}
table.spec-table{
  width:100%;
  min-width:820px;
  border-collapse:separate;
  border-spacing:0;
  margin:0;
  color:var(--text);
}
table.spec-table thead th{
  background:var(--bg-elevated);
  font-size:13.5px;
  font-weight:700;
  color:var(--text-2);
  padding:16px 20px;
  text-align:left;
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
table.spec-table thead th:first-child{color:var(--text);}
table.spec-table tbody td{
  padding:16px 20px;
  font-size:14.5px;
  color:var(--text-2);
  border-bottom:1px solid rgba(255,255,255,.06);
  vertical-align:middle;
}
table.spec-table tbody tr:nth-child(even) td{background:rgba(255,255,255,.025);}
table.spec-table tbody tr:hover td{background:rgba(59,140,255,.07);}
table.spec-table tbody td:first-child{
  color:var(--text);
  font-weight:600;
  white-space:nowrap;
}
table.spec-table tbody tr:last-child td{border-bottom:none;}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  border-radius:var(--r-pill);
  font-size:12px;
  font-weight:600;
  border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.06);
  color:var(--text-2);
  white-space:nowrap;
}
.tag-blue{border-color:rgba(59,140,255,.42);background:rgba(59,140,255,.14);color:#BBD5FF;}
.tag-green{border-color:rgba(43,224,199,.4);background:rgba(43,224,199,.12);color:#9FF3E5;}
.tag-gold{border-color:rgba(255,184,77,.42);background:rgba(255,184,77,.13);color:#FFD79B;}
.tag-vip{border-color:rgba(167,139,250,.42);background:rgba(167,139,250,.14);color:#D6C9FF;}
.table-foot{
  padding:14px 20px;
  font-size:13px;
  color:var(--text-3);
  border-top:1px solid var(--line);
  background:rgba(255,255,255,.02);
}

/* ---------- 卡片墙 ---------- */
.card-wall{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:22px;
}
.help-card{
  position:relative;
  display:flex;
  flex-direction:column;
  gap:12px;
  padding:24px;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
  text-decoration:none;
  color:inherit;
  height:100%;
}
.help-card:hover{
  transform:translateY(-4px);
  border-color:rgba(59,140,255,.45);
  box-shadow:0 26px 52px -24px rgba(0,0,0,.9),0 0 0 1px rgba(59,140,255,.25);
  color:inherit;
}
.card-index{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--brand-2);
}
.help-card h3{font-size:17px;}
.help-card p{font-size:14px;color:var(--text-2);line-height:1.8;}
.help-card .card-foot{
  margin-top:auto;
  padding-top:12px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:12.5px;
  color:var(--text-3);
}
.card-foot .arrow{color:var(--brand);font-weight:700;}

/* ---------- 大字引言 ---------- */
.quote-band{
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:
    radial-gradient(520px 300px at 12% 0%,rgba(59,140,255,.16),transparent 70%),
    rgba(255,255,255,.035);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
  padding:clamp(32px,5vw,58px);
  display:grid;
  grid-template-columns:minmax(0,1.4fr) minmax(0,.6fr);
  gap:34px;
  align-items:center;
}
.quote-text{
  font-size:clamp(20px,2.4vw,28px);
  font-weight:600;
  line-height:1.6;
  color:var(--text);
  letter-spacing:-.01em;
}
.quote-text em{
  font-style:normal;
  color:var(--brand-2);
}
.quote-sign{
  margin-top:18px;
  font-size:13.5px;
  color:var(--text-3);
}
.quote-media{
  border-radius:var(--r-md);
  overflow:hidden;
  border:1px solid var(--line);
  aspect-ratio:4/3;
}
.quote-media img{width:100%;height:100%;object-fit:cover;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;margin:0 auto;}
.faq-item{
  border:1px solid var(--line);
  border-radius:var(--r-md);
  background:rgba(255,255,255,.04);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.faq-item:hover{border-color:rgba(59,140,255,.32);}
.faq-item.open{
  border-color:rgba(59,140,255,.45);
  box-shadow:inset 3px 0 0 var(--brand),0 20px 45px -26px rgba(0,0,0,.9);
}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:18px 20px;
  background:none;
  border:0;
  color:var(--text);
  font-size:16px;
  font-weight:600;
  text-align:left;
  cursor:pointer;
}
.faq-q .plus{
  flex:0 0 auto;
  width:22px;height:22px;
  position:relative;
  transition:transform .28s ease;
}
.faq-q .plus::before,.faq-q .plus::after{
  content:"";
  position:absolute;
  top:50%;left:50%;
  transform:translate(-50%,-50%);
  background:var(--brand);
  border-radius:2px;
}
.faq-q .plus::before{width:14px;height:2px;}
.faq-q .plus::after{width:2px;height:14px;}
.faq-item.open .plus{transform:rotate(45deg);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .32s ease;
}
.faq-item.open .faq-a{max-height:520px;}
.faq-a-inner{
  padding:0 20px 20px;
  font-size:14.5px;
  color:var(--text-2);
  line-height:1.85;
}
.faq-a-inner b{color:var(--text);font-weight:600;}

/* ---------- CTA ---------- */
.cta-band{
  border-radius:var(--r-lg);
  border:1px solid rgba(59,140,255,.3);
  background:
    radial-gradient(560px 320px at 88% 10%,rgba(255,184,77,.14),transparent 70%),
    linear-gradient(140deg,rgba(59,140,255,.16),rgba(43,224,199,.08));
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
  padding:clamp(30px,4.5vw,52px);
  text-align:center;
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:12px;}
.cta-band p{color:var(--text-2);font-size:15px;max-width:620px;margin:0 auto;}
.cta-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  justify-content:center;
  margin-top:26px;
}
.cta-points{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:12px;
  margin-top:26px;
}
.cta-points span{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-2);
  padding:7px 14px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
}
.cta-points span::before{
  content:"";
  width:6px;height:6px;border-radius:50%;
  background:var(--brand-2);
}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:var(--sec-gap);
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(13,21,36,.65),rgba(5,9,16,.95));
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:36px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--text-2);max-width:360px;line-height:1.85;}
.footer-col h4{font-size:14px;font-weight:700;margin-bottom:16px;color:var(--text);}
.footer-col a{
  display:block;
  font-size:14px;
  color:var(--text-2);
  padding:6px 0;
}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  margin-top:44px;
  padding-top:20px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:var(--text-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1399px){
  .card-wall{grid-template-columns:repeat(4,minmax(0,1fr));}
}
@media (max-width:1199px){
  .card-wall{grid-template-columns:repeat(3,minmax(0,1fr));}
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:38px;}
  .hero-bg{opacity:.22;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:30px;}
}
@media (max-width:991px){
  :root{--sec-gap:64px;}
  .navlinks,.header-actions{display:none;}
  .nav-toggle{display:inline-flex;}
  .hero{padding:44px 0 56px;}
  .card-wall{grid-template-columns:repeat(2,minmax(0,1fr));}
  .quote-band{grid-template-columns:minmax(0,1fr);gap:26px;}
  .quote-media{aspect-ratio:16/9;}
  .topper .container{gap:10px;}
}
@media (max-width:767px){
  :root{--sec-gap:52px;}
  body{font-size:15px;}
  .container{padding-left:16px;padding-right:16px;}
  .header-inner{height:64px;gap:14px;}
  .brand-text{font-size:14.5px;}
  .topbar .container{padding-top:8px;padding-bottom:8px;}
  .topbar-note{font-size:11.5px;}
  .topbar-links span{display:none;}
  .card-wall{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .footer-brand{grid-column:1 / -1;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .hero-cta .btn-main,.hero-cta .btn-ghost{flex:1 1 100%;}
  .cta-actions .btn-main,.cta-actions .btn-ghost{flex:1 1 100%;}
  .table-shell{border-radius:var(--r-md);}
  .table-foot{font-size:12.5px;}
}
@media (max-width:519px){
  .hero h1{font-size:27px;}
  .trust-item{font-size:12px;padding:7px 12px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .faq-q{font-size:15px;padding:16px;}
  .faq-a-inner{padding:0 16px 18px;}
}