/* roulang page: index */
/* ===================== 设计变量 ===================== */
:root{
  --color-bg:#070B14;
  --color-bg-soft:#0B1120;
  --color-panel:rgba(16,24,44,.72);
  --color-panel-soft:rgba(13,20,36,.55);
  --color-brand:#2B7BFF;
  --color-neon:#27E0C8;
  --color-accent:#FF7A45;
  --color-text:#EAF0FB;
  --color-muted:#A8B3C7;
  --color-border:rgba(255,255,255,.08);
  --color-border-strong:rgba(39,224,200,.45);
  --radius-sm:12px;
  --radius:16px;
  --radius-lg:20px;
  --shadow:0 18px 45px rgba(0,0,0,.45);
  --shadow-glow:0 0 24px rgba(39,224,200,.16);
  --sp-1:8px; --sp-2:16px; --sp-3:24px; --sp-4:32px; --sp-5:48px; --sp-6:72px; --sp-7:96px;
  --maxw:1240px;
  --nav-h:64px;
}

/* ===================== 基础重置 ===================== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:80px;}
body{
  margin:0;
  background:var(--color-bg);
  color:var(--color-text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:
    radial-gradient(900px 620px at 10% -12%,rgba(43,123,255,.22),transparent 62%),
    radial-gradient(760px 520px at 94% 6%,rgba(39,224,200,.12),transparent 64%),
    radial-gradient(680px 480px at 50% 108%,rgba(255,122,69,.10),transparent 66%),
    linear-gradient(180deg,#070B14 0%,#080D18 55%,#060911 100%);
}
body::after{
  content:"";
  position:fixed;inset:0;z-index:-1;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.026) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.026) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 80%);
  mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 80%);
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--color-neon);text-decoration:none;transition:color .2s ease;}
a:hover{color:#fff;}
ul,ol{margin:0;padding:0;list-style:none;}
p{margin:0 0 1em;}
h1,h2,h3,h4{margin:0 0 .6em;font-weight:700;color:#fff;line-height:1.32;}
h1{font-size:clamp(2.2rem,4.4vw,3.4rem);font-weight:800;line-height:1.2;}
h2{font-size:clamp(1.6rem,2.6vw,2rem);}
h3{font-size:clamp(1.1rem,1.6vw,1.25rem);}
h4{font-size:1rem;}
button{font-family:inherit;cursor:pointer;}
input{font-family:inherit;}
:focus-visible{outline:2px solid var(--color-neon);outline-offset:2px;}

/* ===================== 容器与网格 ===================== */
.grid-container{max-width:var(--maxw);padding-left:20px;padding-right:20px;}
.grid-x>.cell{padding-left:.9375rem;padding-right:.9375rem;}

/* ===================== 导航 ===================== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(7,11,20,.80);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--color-border);
}
.nav-bar{
  display:flex;align-items:center;justify-content:space-between;
  gap:var(--sp-3);min-height:var(--nav-h);
}
.logo{
  display:inline-flex;align-items:center;gap:10px;
  font-size:1.05rem;font-weight:800;color:#fff;letter-spacing:.3px;white-space:nowrap;
}
.logo:hover{color:#fff;}
.logo-mark{
  width:32px;height:32px;border-radius:10px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--color-brand),var(--color-neon));
  color:#04101d;font-size:.82rem;font-weight:800;
  box-shadow:0 6px 18px rgba(43,123,255,.35);
}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-links a{
  position:relative;display:inline-block;
  padding:9px 15px;border-radius:10px;
  color:var(--color-muted);font-size:.95rem;font-weight:500;
  transition:color .2s ease,background .2s ease;
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.05);}
.nav-links a.active{
  color:#fff;background:rgba(39,224,200,.10);
  box-shadow:inset 0 0 0 1px rgba(39,224,200,.24);
}
.nav-links a.active::after{
  content:"";position:absolute;left:15px;right:15px;bottom:3px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--color-neon),var(--color-brand));
  box-shadow:0 0 12px rgba(39,224,200,.65);
}
.nav-right{display:flex;align-items:center;gap:12px;}
.nav-search{
  display:flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--color-border);
  border-radius:12px;padding:5px 6px 5px 12px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search:focus-within{border-color:var(--color-neon);box-shadow:0 0 0 2px rgba(39,224,200,.22);}
.nav-search i{color:var(--color-muted);font-size:.82rem;}
.nav-search input{
  width:136px;background:transparent;border:0;outline:none;
  color:var(--color-text);font-size:.86rem;line-height:1.6;
}
.nav-search input::placeholder{color:rgba(168,179,199,.72);}
.nav-search button{
  border:0;border-radius:9px;padding:7px 12px;font-size:.82rem;font-weight:600;
  background:rgba(39,224,200,.14);color:var(--color-neon);
  transition:background .2s ease,color .2s ease;
}
.nav-search button:hover{background:rgba(39,224,200,.24);color:#fff;}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:12px;
  background:rgba(255,255,255,.05);border:1px solid var(--color-border);
  color:#fff;font-size:1rem;
}
.nav-toggle:hover{background:rgba(39,224,200,.14);border-color:rgba(39,224,200,.4);}
.nav-overlay{display:none;}

/* ===================== 按钮 ===================== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:14px;
  font-size:.95rem;font-weight:600;line-height:1.4;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease,filter .2s ease;
}
.btn-primary{
  background:linear-gradient(118deg,var(--color-accent),var(--color-brand));
  color:#fff;box-shadow:0 12px 30px rgba(43,123,255,.30);
}
.btn-primary:hover{
  color:#fff;filter:brightness(1.08);transform:translateY(-2px);
  box-shadow:0 18px 40px rgba(43,123,255,.44);
}
.btn-ghost{
  background:rgba(255,255,255,.04);border-color:var(--color-border);color:var(--color-text);
}
.btn-ghost:hover{
  color:#fff;background:rgba(39,224,200,.10);
  border-color:rgba(39,224,200,.45);transform:translateY(-2px);
}
.btn:active{transform:translateY(0) scale(.99);}
.btn-sm{padding:9px 16px;font-size:.86rem;border-radius:12px;}
.btn-lg{padding:15px 32px;font-size:1rem;border-radius:16px;}

/* ===================== 通用板块 ===================== */
.sec{padding:var(--sp-6) 0;position:relative;}
.sec-tight{padding:var(--sp-5) 0;}
.sec-head{max-width:760px;margin-bottom:var(--sp-5);}
.sec-head h2{margin-bottom:12px;}
.sec-head p{color:var(--color-muted);margin:0;font-size:.98rem;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;margin-bottom:16px;
  font-size:.78rem;letter-spacing:.08em;
  color:var(--color-neon);
  background:rgba(39,224,200,.08);
  border:1px solid rgba(39,224,200,.22);
}
.eyebrow::before{
  content:"";width:6px;height:6px;border-radius:50%;
  background:var(--color-neon);box-shadow:0 0 10px rgba(39,224,200,.9);
}

/* ===================== 卡片 ===================== */
.card{
  position:relative;overflow:hidden;
  background:var(--color-panel);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border:1px solid var(--color-border);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;pointer-events:none;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.16),transparent);
}
.card:hover{
  transform:translateY(-4px);
  border-color:var(--color-border-strong);
  box-shadow:var(--shadow),var(--shadow-glow);
}
.card-lg{border-radius:var(--radius-lg);}

/* ===================== Hero ===================== */
.hero{position:relative;overflow:hidden;padding:64px 0 72px;}
.hero-bg{
  position:absolute;inset:0;z-index:0;
  background-image:url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
  opacity:.20;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,.55) 0%,rgba(7,11,20,.9) 55%,rgba(7,11,20,.98) 100%);
}
.hero .grid-container{position:relative;z-index:2;}
.hero-grid{min-height:78vh;align-items:center;}
.hero-copy .brand-chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:999px;margin-bottom:22px;
  font-size:.84rem;font-weight:600;color:var(--color-neon);
  background:rgba(39,224,200,.08);
  border:1px solid rgba(39,224,200,.24);
}
.hero h1{margin-bottom:16px;}
.hero h1 .hl{
  background:linear-gradient(100deg,var(--color-neon),var(--color-brand));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{
  font-size:1.08rem;font-weight:600;color:#fff;margin-bottom:14px;
}
.hero-desc{
  color:var(--color-muted);font-size:.98rem;max-width:520px;margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:32px;}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:12px;
}
.hero-stats li{
  flex:1 1 132px;min-width:132px;
  padding:14px 16px;border-radius:var(--radius-sm);
  background:rgba(255,255,255,.035);
  border:1px solid var(--color-border);
}
.hero-stats b{display:block;font-size:1.28rem;font-weight:800;color:#fff;line-height:1.3;}
.hero-stats span{font-size:.82rem;color:var(--color-muted);}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;border-radius:24px;
  border:1px solid var(--color-border);
  box-shadow:0 28px 60px rgba(0,0,0,.55);
}
.hero-visual::after{
  content:"";position:absolute;inset:0;border-radius:24px;pointer-events:none;
  background:linear-gradient(180deg,rgba(7,11,20,0) 42%,rgba(7,11,20,.62) 100%);
}
.hero-visual .float-tag{
  position:absolute;left:22px;bottom:22px;z-index:3;
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border-radius:999px;
  font-size:.82rem;font-weight:600;color:#fff;
  background:rgba(10,16,30,.78);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border:1px solid rgba(39,224,200,.35);
}
.hero-visual .float-tag i{color:var(--color-neon);}

/* ===================== 权益对比 ===================== */
.compare-shell{
  overflow:hidden;border-radius:var(--radius-lg);
  background:rgba(13,20,36,.74);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border:1px solid var(--color-border);
  box-shadow:var(--shadow);
}
.compare-table{width:100%;border-collapse:separate;border-spacing:0;margin:0;}
.compare-table th,.compare-table td{
  padding:17px 20px;text-align:left;font-size:.94rem;
  border-bottom:1px solid var(--color-border);
  vertical-align:middle;
}
.compare-table thead th{
  position:sticky;top:var(--nav-h);z-index:4;
  background:rgba(11,17,32,.97);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  color:#fff;font-weight:700;font-size:.98rem;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.compare-table thead th.corner{
  left:0;z-index:6;color:var(--color-muted);font-weight:600;
}
.compare-table tbody th{
  position:sticky;left:0;z-index:3;
  background:rgba(13,20,36,.98);
  color:#fff;font-weight:600;
  border-right:1px solid var(--color-border);
  width:190px;
}
.compare-table tbody td{color:var(--color-muted);}
.compare-table tbody tr:hover td{color:#fff;background:rgba(39,224,200,.04);}
.compare-table tbody tr:last-child th,
.compare-table tbody tr:last-child td{border-bottom:0;}
.compare-table thead th.hot{color:var(--color-neon);}
.compare-table td.hot{color:#fff;font-weight:600;}
.compare-table td .dot{
  display:inline-block;width:6px;height:6px;border-radius:50%;
  background:var(--color-neon);margin-right:8px;
  box-shadow:0 0 8px rgba(39,224,200,.8);vertical-align:middle;
}
.compare-cards{display:none;}
.compare-note{
  margin-top:16px;font-size:.84rem;color:var(--color-muted);
}

/* ===================== 等级亮点 ===================== */
.level-grid{margin-top:-16px;}
.level-card{
  padding:28px 26px;
  display:flex;flex-direction:column;height:100%;
}
.level-card .badge-row{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.badge{
  display:inline-flex;align-items:center;
  padding:5px 12px;border-radius:999px;
  font-size:.76rem;font-weight:600;letter-spacing:.02em;
  color:var(--color-neon);
  background:rgba(39,224,200,.10);
  border:1px solid rgba(39,224,200,.24);
}
.badge.warm{color:var(--color-accent);background:rgba(255,122,69,.10);border-color:rgba(255,122,69,.28);}
.badge.blue{color:#8FBBFF;background:rgba(43,123,255,.12);border-color:rgba(43,123,255,.30);}
.level-card h3{margin-bottom:6px;}
.level-card .level-desc{font-size:.88rem;color:var(--color-muted);margin-bottom:20px;}
.level-list{display:flex;flex-direction:column;gap:12px;margin-bottom:24px;flex:1 1 auto;}
.level-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:.92rem;color:var(--color-muted);
}
.level-list li i{color:var(--color-neon);font-size:.8rem;margin-top:7px;flex:0 0 auto;}
.level-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:20px;border-top:1px solid var(--color-border);
}
.level-price{font-size:.9rem;color:#fff;font-weight:600;}
.level-price span{display:block;font-size:.76rem;color:var(--color-muted);font-weight:400;}
.level-card.featured{
  border-color:rgba(39,224,200,.35);
  box-shadow:var(--shadow),0 0 34px rgba(39,224,200,.12);
}
@media (min-width:1024px){
  .level-grid .cell:nth-child(2) .level-card{margin-top:34px;}
  .level-grid .cell:nth-child(3) .level-card{margin-top:14px;}
}

/* ===================== 专属内容预览 ===================== */
.preview-grid{align-items:stretch;}
.feature-card{display:block;height:100%;color:inherit;overflow:hidden;}
.feature-card .thumb{position:relative;overflow:hidden;}
.feature-card .thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.feature-card .thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,.05) 40%,rgba(7,11,20,.75) 100%);
}
.feature-card .body{padding:24px 26px 28px;}
.feature-card h3{font-size:1.28rem;margin-bottom:10px;}
.feature-card p{color:var(--color-muted);font-size:.92rem;margin-bottom:14px;}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:.8rem;color:var(--color-muted);}
.mini-col{display:flex;flex-direction:column;gap:24px;height:100%;}
.mini-card{display:grid;grid-template-columns:118px 1fr;gap:16px;padding:16px;height:100%;color:inherit;align-items:center;}
.mini-card .thumb{overflow:hidden;border-radius:var(--radius-sm);}
.mini-card .thumb img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.mini-card h3{font-size:1rem;margin-bottom:6px;}
.mini-card p{font-size:.84rem;color:var(--color-muted);margin:0;}

/* ===================== 最新信息 ===================== */
.news-list{display:flex;flex-direction:column;gap:20px;}
.news-item{
  display:grid;grid-template-columns:260px 1fr;gap:24px;
  padding:18px;align-items:center;
}
.news-thumb{overflow:hidden;border-radius:var(--radius-sm);display:block;}
.news-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .35s ease;}
.news-item:hover .news-thumb img{transform:scale(1.04);}
.news-body{padding-right:8px;}
.news-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:10px;}
.news-date{font-size:.8rem;color:var(--color-muted);}
.news-title{font-size:1.08rem;margin-bottom:8px;line-height:1.5;}
.news-title a{
  color:#fff;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-title a:hover{color:var(--color-neon);}
.news-sum{
  font-size:.9rem;color:var(--color-muted);margin-bottom:12px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-more{font-size:.86rem;font-weight:600;color:var(--color-neon);display:inline-flex;align-items:center;gap:6px;}
.news-more::after{content:"\2192";transition:transform .2s ease;}
.news-more:hover::after{transform:translateX(4px);}
.empty-state{
  padding:56px 24px;text-align:center;
  border-radius:var(--radius-lg);
  border:1px dashed rgba(255,255,255,.14);
  background:rgba(13,20,36,.5);
}
.empty-mark{
  display:inline-block;width:52px;height:52px;border-radius:16px;margin-bottom:16px;
  background:linear-gradient(135deg,rgba(43,123,255,.35),rgba(39,224,200,.28));
  border:1px solid var(--color-border);
}
.empty-state p{color:var(--color-muted);margin:0;font-size:.94rem;}

/* ===================== FAQ ===================== */
.faq-list{display:flex;flex-direction:column;gap:14px;}
.faq-item{
  border-radius:var(--radius);
  background:var(--color-panel-soft);
  border:1px solid var(--color-border);
  overflow:hidden;
  transition:border-color .25s ease,box-shadow .25s ease,background .25s ease;
}
.faq-item:hover{border-color:rgba(39,224,200,.28);}
.faq-item.open{
  border-color:rgba(39,224,200,.40);
  box-shadow:0 0 24px rgba(39,224,200,.10);
  background:rgba(16,24,44,.72);
}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;background:transparent;border:0;text-align:left;
  color:#fff;font-size:1rem;font-weight:600;line-height:1.5;
}
.faq-q i{
  flex:0 0 auto;color:var(--color-neon);font-size:.86rem;
  transition:transform .28s ease;
}
.faq-item.open .faq-q i{transform:rotate(180deg);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .32s ease;
  border-top:1px solid transparent;
}
.faq-item.open .faq-a{border-top-color:var(--color-border);}
.faq-a p{
  padding:16px 24px 22px;margin:0;
  color:var(--color-muted);font-size:.93rem;line-height:1.85;
}

/* ===================== CTA ===================== */
.cta-wrap{padding:0 0 var(--sp-6);}
.cta-card{
  position:relative;overflow:hidden;
  padding:56px 48px;border-radius:24px;text-align:center;
  background:
    radial-gradient(560px 320px at 12% 0%,rgba(43,123,255,.30),transparent 60%),
    radial-gradient(520px 300px at 88% 100%,rgba(39,224,200,.20),transparent 62%),
    rgba(16,24,44,.78);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border:1px solid rgba(255,255,255,.10);
  box-shadow:0 24px 60px rgba(0,0,0,.5),0 0 40px rgba(43,123,255,.12);
}
.cta-card h2{margin-bottom:14px;}
.cta-card p{color:var(--color-muted);max-width:660px;margin:0 auto 30px;font-size:.98rem;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;}

/* ===================== 页脚 ===================== */
.site-footer{
  background:#05080F;
  border-top:1px solid var(--color-border);
  padding:64px 0 0;
}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding-bottom:44px;}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand p{color:var(--color-muted);font-size:.88rem;max-width:320px;margin:0;}
.footer-col h4{font-size:.95rem;color:#fff;margin-bottom:16px;font-weight:700;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{color:var(--color-muted);font-size:.88rem;}
.footer-col a:hover{color:var(--color-neon);}
.footer-bottom{
  border-top:1px solid var(--color-border);
  padding:22px 0 26px;
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  color:var(--color-muted);font-size:.82rem;
}
.footer-bottom .tip{color:rgba(168,179,199,.75);}

/* ===================== 响应式 ===================== */
@media (max-width:1023px){
  .nav-toggle{display:inline-flex;}
  .nav-search{display:none;}
  .nav-links{
    position:fixed;top:0;right:0;z-index:90;
    width:min(80vw,320px);height:100%;
    flex-direction:column;align-items:stretch;gap:10px;
    padding:88px 22px 32px;
    background:rgba(8,13,24,.98);
    -webkit-backdrop-filter:blur(18px);
    backdrop-filter:blur(18px);
    border-left:1px solid var(--color-border);
    transform:translateX(102%);
    transition:transform .3s ease;
    overflow-y:auto;
  }
  body.nav-open .nav-links{transform:translateX(0);}
  .nav-links a{padding:14px 16px;font-size:1rem;border-radius:12px;}
  .nav-links a.active::after{left:16px;right:16px;bottom:6px;}
  .nav-overlay{
    display:block;position:fixed;inset:0;z-index:85;
    background:rgba(4,7,13,.62);
    opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;
  }
  body.nav-open .nav-overlay{opacity:1;visibility:visible;}
  body.nav-open{overflow:hidden;}
  .hero{padding:44px 0 56px;}
  .hero-grid{min-height:auto;}
  .hero-visual{margin-top:40px;}
  .hero-desc{max-width:none;}
  .sec{padding:56px 0;}
  .sec-head{margin-bottom:36px;}
  .feature-card{margin-bottom:24px;}
  .news-item{grid-template-columns:200px 1fr;gap:18px;}
  .footer-top{grid-template-columns:1fr 1fr;gap:28px;}
  .cta-card{padding:44px 28px;}
}

@media (max-width:767px){
  .compare-shell{display:none;}
  .compare-cards{display:grid;gap:16px;}
  .compare-card{
    padding:22px 20px;border-radius:var(--radius);
    background:var(--color-panel);
    -webkit-backdrop-filter:blur(14px);
    backdrop-filter:blur(14px);
    border:1px solid var(--color-border);
    box-shadow:var(--shadow);
  }
  .compare-card h3{margin-bottom:4px;font-size:1.05rem;}
  .compare-card .lv-note{font-size:.8rem;color:var(--color-muted);margin-bottom:16px;}
  .compare-card ul{display:flex;flex-direction:column;gap:0;}
  .compare-card li{
    display:flex;justify-content:space-between;gap:14px;
    padding:11px 0;font-size:.88rem;
    border-bottom:1px solid var(--color-border);
    color:var(--color-muted);
  }
  .compare-card li:last-child{border-bottom:0;}
  .compare-card li b{color:#fff;font-weight:600;text-align:right;}
  .news-item{grid-template-columns:1fr;gap:16px;padding:16px;}
  .news-thumb img{aspect-ratio:16/9;}
  .mini-card{grid-template-columns:96px 1fr;}
}

@media (max-width:519px){
  .grid-container{padding-left:16px;padding-right:16px;}
  .grid-x>.cell{padding-left:.625rem;padding-right:.625rem;}
  h1{font-size:1.9rem;}
  .hero-sub{font-size:1rem;}
  .hero-actions .btn{flex:1 1 auto;justify-content:center;}
  .hero-stats li{flex:1 1 100%;min-width:0;}
  .level-card{padding:22px 20px;}
  .feature-card .body{padding:20px;}
  .faq-q{padding:17px 18px;font-size:.95rem;}
  .faq-a p{padding:14px 18px 20px;}
  .cta-card{padding:36px 20px;border-radius:20px;}
  .cta-actions .btn{width:100%;}
  .footer-top{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: article */
:root{
  --bg:#070B14;
  --bg-deep:#050810;
  --surface:rgba(16,24,44,.72);
  --surface-solid:#0E1626;
  --surface-soft:rgba(13,20,36,.72);
  --border:rgba(255,255,255,.08);
  --border-strong:rgba(255,255,255,.16);
  --text:#EAF0FA;
  --text-2:#A8B3C7;
  --text-3:#7C8798;
  --primary:#2B7BFF;
  --cyan:#27E0C8;
  --orange:#FF7A45;
  --radius-sm:12px;
  --radius:16px;
  --radius-lg:20px;
  --radius-xl:24px;
  --shadow:0 18px 45px rgba(0,0,0,.45);
  --glow:0 0 24px rgba(39,224,200,.16);
  --container:1240px;
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",Inter,system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
}

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

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

body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background-color:var(--bg);
  background-image:
    radial-gradient(1200px 600px at 78% -10%, rgba(43,123,255,.22), transparent 62%),
    radial-gradient(900px 520px at 4% 10%, rgba(39,224,200,.12), transparent 60%),
    linear-gradient(125deg, rgba(255,122,69,.07) 0%, transparent 44%),
    repeating-linear-gradient(0deg, rgba(255,255,255,.026) 0 1px, transparent 1px 58px),
    repeating-linear-gradient(90deg, rgba(255,255,255,.026) 0 1px, transparent 1px 58px);
  background-attachment:fixed;
  overflow-x:hidden;
}

img{max-width:100%;height:auto;display:block;}
a{color:#7FB2FF;text-decoration:none;transition:color .2s ease,border-color .2s ease,background .2s ease;}
a:hover{color:var(--cyan);}
p{margin:0 0 16px;}
ul,ol{margin:0 0 16px;padding-left:22px;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.4;color:#fff;}
button{font-family:inherit;}
input,textarea,select{font-family:inherit;}

.grid-container{max-width:var(--container);padding-left:22px;padding-right:22px;margin-left:auto;margin-right:auto;}

.skip-link{position:absolute;left:-9999px;top:0;z-index:999;padding:10px 18px;background:var(--cyan);color:#04101f;border-radius:0 0 12px 0;}
.skip-link:focus{left:0;color:#04101f;}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(7,11,20,.82);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--border);
}

.nav-bar{display:flex;align-items:center;gap:18px;height:66px;}

.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-weight:800;
  font-size:1.05rem;
  letter-spacing:.01em;
  white-space:nowrap;
  flex:0 0 auto;
}
.logo:hover{color:#fff;}
.logo-mark{
  width:34px;height:34px;
  border-radius:10px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),var(--cyan));
  color:#04101f;
  font-weight:800;
  font-size:1rem;
  box-shadow:0 8px 20px rgba(43,123,255,.35);
}

.nav-links{display:flex;align-items:center;gap:4px;flex:1 1 auto;margin-left:6px;}
.nav-links a{
  position:relative;
  padding:8px 14px;
  border-radius:10px;
  color:var(--text-2);
  font-size:.95rem;
  font-weight:500;
  white-space:nowrap;
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.06);}
.nav-links a.active{color:#fff;}
.nav-links a.active::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:2px;
  height:2px;border-radius:2px;
  background:var(--cyan);
  box-shadow:0 0 12px rgba(39,224,200,.85);
}

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

.nav-search{
  display:flex;align-items:center;gap:8px;
  padding:4px 6px 4px 14px;
  border-radius:999px;
  background:rgba(255,255,255,.045);
  border:1px solid var(--border);
  transition:border-color .2s ease, box-shadow .2s ease;
}
.nav-search:focus-within{border-color:rgba(39,224,200,.55);box-shadow:var(--glow);}
.nav-search i{color:var(--text-3);font-size:.85rem;}
.nav-search input{
  width:150px;
  padding:6px 0;
  border:0;outline:0;background:transparent;
  color:var(--text);
  font-size:.9rem;
}
.nav-search input::placeholder{color:var(--text-3);}
.nav-search button{
  border:0;cursor:pointer;
  padding:7px 15px;
  border-radius:999px;
  font-size:.84rem;
  font-weight:600;
  color:#06121f;
  background:rgba(39,224,200,.88);
  transition:background .2s ease;
}
.nav-search button:hover{background:var(--cyan);}

.nav-toggle{
  display:none;
  align-items:center;justify-content:center;
  width:40px;height:38px;
  border-radius:10px;
  border:1px solid var(--border-strong);
  background:rgba(255,255,255,.05);
  color:#fff;
  cursor:pointer;
  transition:background .2s ease,border-color .2s ease;
}
.nav-toggle:hover{background:rgba(39,224,200,.12);border-color:rgba(39,224,200,.5);}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;
  border-radius:var(--radius-sm);
  border:1px solid transparent;
  font-size:.95rem;
  font-weight:600;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease,filter .2s ease;
}
.btn-primary{
  background:linear-gradient(120deg,var(--orange),var(--primary));
  color:#fff;
  box-shadow:0 12px 30px rgba(43,123,255,.28);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);color:#fff;}
.btn-ghost{
  background:rgba(255,255,255,.04);
  border-color:var(--border-strong);
  color:var(--text);
}
.btn-ghost:hover{
  background:rgba(39,224,200,.1);
  border-color:rgba(39,224,200,.5);
  color:#fff;
  transform:translateY(-2px);
}
.btn-sm{padding:9px 16px;font-size:.88rem;border-radius:10px;}
.btn:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;}
.btn-block{width:100%;}

/* ---------- Article Hero ---------- */
.article-hero{position:relative;padding:52px 0 10px;}
.article-hero::before{
  content:"";
  position:absolute;inset:0;
  background:radial-gradient(760px 320px at 20% 0%, rgba(43,123,255,.16), transparent 68%);
  pointer-events:none;
}
.article-hero .grid-container{position:relative;}

.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:9px;
  font-size:.85rem;color:var(--text-3);
  margin-bottom:20px;
}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--cyan);}
.breadcrumb .sep{color:rgba(255,255,255,.22);}
.breadcrumb .current{color:var(--text-3);}

.article-hero h1{
  font-size:clamp(1.75rem,3vw,2.5rem);
  line-height:1.36;
  font-weight:800;
  max-width:960px;
  margin-bottom:18px;
  letter-spacing:0;
}

.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:.88rem;color:var(--text-2);}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.25);}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;
  border-radius:999px;
  font-size:.78rem;
  font-weight:600;
  background:rgba(43,123,255,.15);
  border:1px solid rgba(43,123,255,.3);
  color:#9EC5FF;
}
.badge-cyan{background:rgba(39,224,200,.13);border-color:rgba(39,224,200,.3);color:#8CF3E4;}
.badge-orange{background:rgba(255,122,69,.14);border-color:rgba(255,122,69,.3);color:#FFB596;}

/* ---------- Article Body ---------- */
.article-wrap{padding:30px 0 40px;}
.article-shell{max-width:820px;margin:0 auto;}

.article-body{
  position:relative;
  padding:38px 40px;
  border-radius:var(--radius-lg);
  background:var(--surface-soft);
  border:1px solid var(--border);
  box-shadow:var(--shadow);
  color:#D6DEEE;
  font-size:1rem;
  line-height:1.85;
  overflow:hidden;
}
.article-body::before{
  content:"";
  position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,rgba(39,224,200,.6),rgba(43,123,255,.35),transparent);
}

.article-body h2{
  font-size:1.45rem;
  margin:38px 0 16px;
  padding-left:14px;
  border-left:3px solid var(--cyan);
  line-height:1.5;
}
.article-body h3{font-size:1.18rem;margin:30px 0 12px;color:#F2F6FF;}
.article-body h4{font-size:1.02rem;margin:24px 0 10px;color:#E6EDF9;}
.article-body h2:first-child,.article-body h3:first-child{margin-top:0;}

.article-body p{margin:0 0 18px;}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:24px;}
.article-body li{margin-bottom:9px;}
.article-body li::marker{color:var(--cyan);}
.article-body strong{color:#fff;font-weight:700;}
.article-body em{color:#B9D4FF;font-style:normal;}

.article-body a{color:#8CBCFF;border-bottom:1px solid rgba(140,188,255,.4);}
.article-body a:hover{color:var(--cyan);border-bottom-color:var(--cyan);}

.article-body blockquote{
  margin:24px 0;
  padding:18px 22px;
  border-radius:14px;
  border-left:3px solid var(--primary);
  background:rgba(43,123,255,.09);
  color:#CBD8EE;
}
.article-body blockquote p:last-child{margin-bottom:0;}

.article-body img{
  width:100%;
  border-radius:14px;
  border:1px solid var(--border);
  margin:22px 0 10px;
}

.article-body figure{margin:24px 0;}
.article-body figcaption{
  font-size:.84rem;
  color:var(--text-3);
  text-align:center;
  margin-top:8px;
}

.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:22px 0;
  font-size:.93rem;
  background:rgba(255,255,255,.02);
  border-radius:12px;
  overflow:hidden;
}
.article-body thead th{
  background:rgba(43,123,255,.16);
  color:#fff;
  text-align:left;
}
.article-body th,.article-body td{
  padding:12px 14px;
  border:1px solid var(--border);
  vertical-align:top;
}

.article-body pre{
  margin:22px 0;
  padding:18px;
  border-radius:14px;
  background:rgba(4,8,16,.85);
  border:1px solid var(--border);
  overflow-x:auto;
  font-family:var(--mono);
  font-size:.86rem;
  line-height:1.7;
  color:#BEE7DE;
}
.article-body code{
  font-family:var(--mono);
  font-size:.88em;
  padding:2px 6px;
  border-radius:6px;
  background:rgba(39,224,200,.12);
  color:#8CF3E4;
}
.article-body pre code{background:none;padding:0;color:inherit;}

.article-body hr{border:0;border-top:1px solid var(--border);margin:32px 0;}

.empty-state{
  padding:56px 24px;
  text-align:center;
}
.empty-state i{
  font-size:2rem;
  color:var(--text-3);
  margin-bottom:16px;
  display:block;
}
.empty-state h2{
  font-size:1.25rem;
  border:0;
  padding:0;
  margin:0 0 10px;
}
.empty-state p{color:var(--text-2);margin-bottom:22px;}

/* ---------- Article footer info ---------- */
.article-foot{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;
  margin-top:22px;
  padding:20px 24px;
  border-radius:var(--radius);
  background:var(--surface);
  border:1px solid var(--border);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.article-foot .tags{display:flex;flex-wrap:wrap;gap:10px;align-items:center;}
.article-foot .foot-note{font-size:.85rem;color:var(--text-3);}

/* ---------- Sections ---------- */
.section{padding:72px 0 0;}
.section-head{margin-bottom:32px;max-width:720px;}
.section-head h2{font-size:clamp(1.5rem,2.4vw,1.95rem);margin-bottom:12px;}
.section-head p{color:var(--text-2);margin:0;font-size:.96rem;}

/* ---------- Related cards ---------- */
.card-grid{display:grid;gap:22px;grid-template-columns:repeat(3,minmax(0,1fr));}
.content-card{
  display:flex;flex-direction:column;
  border-radius:var(--radius);
  background:var(--surface);
  border:1px solid var(--border);
  overflow:hidden;
  box-shadow:0 14px 34px rgba(0,0,0,.32);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.content-card:hover{transform:translateY(-4px);border-color:rgba(39,224,200,.55);box-shadow:var(--shadow),var(--glow);}
.content-card .thumb{position:relative;aspect-ratio:16/9;overflow:hidden;}
.content-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.content-card:hover .thumb img{transform:scale(1.05);}
.content-card .thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,0) 40%,rgba(7,11,20,.75));
}
.content-card .body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto;}
.content-card h3{font-size:1.08rem;line-height:1.5;}
.content-card h3 a{color:#fff;}
.content-card h3 a:hover{color:var(--cyan);}
.content-card p{color:var(--text-2);font-size:.9rem;margin:0;line-height:1.7;}
.content-card .meta{display:flex;align-items:center;gap:10px;font-size:.8rem;color:var(--text-3);margin-top:auto;}
.content-card .go{font-size:.86rem;font-weight:600;color:var(--cyan);display:inline-flex;align-items:center;gap:6px;}
.content-card .go i{transition:transform .2s ease;}
.content-card:hover .go i{transform:translateX(4px);}

/* ---------- CTA band ---------- */
.cta-section{padding:78px 0 0;}
.cta-band{
  position:relative;
  overflow:hidden;
  padding:52px 44px;
  border-radius:var(--radius-xl);
  text-align:center;
  background:
    radial-gradient(600px 260px at 20% 0%, rgba(255,122,69,.22), transparent 66%),
    radial-gradient(700px 300px at 82% 100%, rgba(39,224,200,.2), transparent 68%),
    rgba(16,24,44,.78);
  border:1px solid var(--border-strong);
  box-shadow:var(--shadow);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
}
.cta-band h2{font-size:clamp(1.5rem,2.6vw,2rem);margin-bottom:14px;}
.cta-band p{color:var(--text-2);max-width:640px;margin:0 auto 28px;font-size:.98rem;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;}

/* ---------- Footer ---------- */
.site-footer{
  margin-top:88px;
  padding:64px 0 26px;
  background:var(--bg-deep);
  border-top:1px solid var(--border);
}
.footer-top{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:36px;}
.footer-brand p{color:var(--text-2);font-size:.92rem;line-height:1.8;margin:18px 0 0;max-width:340px;}
.footer-col h4{font-size:.95rem;color:#fff;margin-bottom:16px;font-weight:700;}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px;}
.footer-col a{color:var(--text-2);font-size:.9rem;}
.footer-col a:hover{color:var(--cyan);}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;
  margin-top:50px;padding-top:22px;
  border-top:1px solid var(--border);
  color:var(--text-3);
  font-size:.84rem;
}
.footer-bottom .tip{max-width:520px;}

/* ---------- Responsive ---------- */
@media screen and (max-width:1023px){
  .nav-search{display:none;}
  .nav-toggle{display:inline-flex;}

  .nav-links{
    position:fixed;
    top:66px;left:0;right:0;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    margin:0;
    padding:14px 20px 20px;
    background:rgba(7,11,20,.97);
    border-bottom:1px solid var(--border);
    transform:translateY(-14px);
    opacity:0;
    pointer-events:none;
    transition:transform .24s ease,opacity .24s ease;
  }
  .nav-links.open{transform:translateY(0);opacity:1;pointer-events:auto;}
  .nav-links a{padding:12px 14px;font-size:.98rem;}
  .nav-links a.active::after{left:14px;right:auto;width:28px;bottom:8px;}

  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-top{grid-template-columns:1fr 1fr;gap:30px;}
  .footer-brand{grid-column:1 / -1;}
}

@media screen and (max-width:767px){
  .article-hero{padding:36px 0 6px;}
  .article-body{padding:26px 20px;border-radius:var(--radius);}
  .article-body h2{font-size:1.25rem;}
  .article-body h3{font-size:1.08rem;}
  .section{padding:52px 0 0;}
  .card-grid{grid-template-columns:1fr;}
  .cta-section{padding:56px 0 0;}
  .cta-band{padding:38px 22px;}
  .article-foot{padding:18px 18px;}
  .grid-container{padding-left:16px;padding-right:16px;}
}

@media screen and (max-width:520px){
  .logo{font-size:.98rem;}
  .footer-top{grid-template-columns:1fr;}
  .cta-actions .btn{width:100%;}
  .footer-bottom{flex-direction:column;gap:8px;}
}

/* roulang page: category1 */
:root{
  --bg:#070B14;
  --bg-soft:#0B1222;
  --panel:rgba(16,24,44,.72);
  --panel-solid:#0E1526;
  --brand:#2B7BFF;
  --brand-deep:#1A4FBF;
  --cyan:#27E0C8;
  --orange:#FF7A45;
  --text:#EAF0FA;
  --muted:#A8B3C7;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --r-sm:12px;
  --r-md:16px;
  --r-lg:20px;
  --shadow:0 18px 45px rgba(0,0,0,.45);
  --glow-cyan:0 0 24px rgba(39,224,200,.16);
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background-color:var(--bg);
  background-image:
    radial-gradient(1100px 620px at 10% -12%, rgba(43,123,255,.20), transparent 62%),
    radial-gradient(900px 520px at 94% -4%, rgba(39,224,200,.12), transparent 60%),
    linear-gradient(180deg,#070B14 0%,#080D18 46%,#060910 100%);
  background-attachment:fixed;
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Inter,system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 50% 18%,rgba(0,0,0,.85),transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 18%,rgba(0,0,0,.85),transparent 78%);
}
h1,h2,h3,h4{margin:0 0 .6em;font-weight:700;line-height:1.35;color:#fff;}
p{margin:0 0 1em;}
a{color:var(--cyan);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--orange);}
img{max-width:100%;display:block;height:auto;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:4px;}
.grid-container{max-width:1240px;padding-left:24px;padding-right:24px;margin:0 auto;position:relative;z-index:1;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(7,11,20,.82);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.nav-bar{display:flex;align-items:center;gap:28px;height:64px;}
.logo{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:17px;letter-spacing:.2px;}
.logo:hover{color:#fff;}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;border-radius:10px;
  background:linear-gradient(135deg,var(--brand),var(--cyan));
  color:#04101c;font-weight:900;font-size:16px;
  box-shadow:0 0 18px rgba(43,123,255,.42);
}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-links a{
  position:relative;display:inline-block;
  padding:9px 14px;border-radius:10px;
  color:var(--muted);font-size:15px;font-weight:500;
  transition:color .2s ease,background .2s ease;
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.05);}
.nav-links a.active{color:var(--cyan);background:rgba(39,224,200,.08);}
.nav-links a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;
  border-radius:2px;background:linear-gradient(90deg,var(--cyan),var(--brand));
  box-shadow:0 0 12px rgba(39,224,200,.7);
}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px;}
.nav-search{
  display:flex;align-items:center;gap:8px;
  padding:6px 8px 6px 12px;border-radius:999px;
  background:rgba(12,19,34,.9);
  border:1px solid var(--line);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search i{color:var(--muted);font-size:13px;}
.nav-search input{
  width:152px;border:0;background:transparent;color:var(--text);
  font-size:14px;outline:none;padding:4px 0;
}
.nav-search input::placeholder{color:#6D7A92;}
.nav-search button{
  border:0;cursor:pointer;padding:6px 14px;border-radius:999px;
  background:rgba(43,123,255,.16);color:#CFE0FF;font-size:13px;font-weight:600;
  transition:background .2s ease,color .2s ease;
}
.nav-search button:hover{background:rgba(39,224,200,.2);color:#fff;}
.nav-search:focus-within{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(39,224,200,.14);}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;cursor:pointer;
  border:1px solid var(--line);background:rgba(12,19,34,.9);color:var(--text);
  font-size:16px;line-height:1;
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:700;cursor:pointer;line-height:1.2;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-primary{
  background:linear-gradient(120deg,var(--orange),var(--brand) 78%);
  color:#08111f;
  box-shadow:0 10px 30px rgba(43,123,255,.28),0 0 0 1px rgba(255,255,255,.08) inset;
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);color:#08111f;}
.btn-ghost{
  background:rgba(255,255,255,.03);
  border-color:var(--line-strong);
  color:var(--text);
}
.btn-ghost:hover{background:rgba(39,224,200,.10);border-color:var(--cyan);color:#fff;}
.btn:disabled,.btn[aria-disabled="true"]{filter:saturate(.5) brightness(.8);cursor:not-allowed;transform:none;}
.btn-block{width:100%;}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;
  padding:64px 0 72px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center right;
  opacity:.42;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(7,11,20,.96) 8%,rgba(7,11,20,.78) 48%,rgba(7,11,20,.42) 100%);
}
.page-hero-inner{position:relative;z-index:2;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:20px;}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--cyan);}
.breadcrumb .sep{color:#4C5871;}
.breadcrumb [aria-current]{color:#D6DEEE;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;margin-bottom:18px;
  background:rgba(39,224,200,.10);
  border:1px solid rgba(39,224,200,.28);
  color:var(--cyan);font-size:13px;font-weight:600;letter-spacing:.6px;
}
.page-hero h1{
  font-size:clamp(2rem,3.4vw,3.1rem);
  font-weight:800;max-width:900px;margin-bottom:16px;
}
.page-hero .lead{
  font-size:17px;color:#C6D0E2;max-width:660px;margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:38px;}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;
  max-width:760px;
}
.hero-stats li{
  padding:16px 18px;border-radius:var(--r-md);
  background:var(--panel);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.hero-stats strong{display:block;font-size:22px;color:#fff;font-weight:800;letter-spacing:.4px;}
.hero-stats span{display:block;font-size:13px;color:var(--muted);}

/* ---------- section base ---------- */
.section{padding:76px 0;}
.section-head{max-width:760px;margin-bottom:36px;}
.section-head h2{font-size:clamp(1.6rem,2.3vw,2rem);}
.section-head p{color:var(--muted);margin:0;}
.section-tight{padding:56px 0;}

/* ---------- layout: filter + cards ---------- */
.level-layout{
  display:grid;
  grid-template-columns:280px minmax(0,1fr);
  gap:32px;
  align-items:start;
}
.side-filter{position:sticky;top:88px;}
.filter-card{
  padding:22px;
  border-radius:var(--r-lg);
  background:var(--panel);
  border:1px solid var(--line);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  box-shadow:var(--shadow);
}
.filter-card h2{font-size:16px;margin-bottom:18px;letter-spacing:.4px;}
.filter-group{padding-bottom:18px;margin-bottom:18px;border-bottom:1px solid var(--line);}
.filter-group:last-of-type{border-bottom:0;margin-bottom:0;padding-bottom:0;}
.filter-group .group-label{
  display:block;font-size:13px;color:var(--muted);margin-bottom:10px;letter-spacing:.5px;
}
.chip-group{display:flex;flex-wrap:wrap;gap:8px;}
.chip{
  padding:6px 14px;border-radius:999px;cursor:pointer;font-size:13px;
  background:rgba(255,255,255,.03);
  border:1px solid var(--line);
  color:var(--muted);
  transition:all .2s ease;
}
.chip:hover{color:#fff;border-color:var(--line-strong);}
.chip.is-active{
  background:rgba(43,123,255,.18);
  border-color:rgba(43,123,255,.55);
  color:#DCE8FF;
  box-shadow:0 0 0 1px rgba(43,123,255,.25) inset;
}
.filter-note{
  margin-top:18px;padding:14px;border-radius:var(--r-sm);
  background:rgba(39,224,200,.06);
  border:1px solid rgba(39,224,200,.18);
  font-size:13px;color:#BFD6D2;line-height:1.7;
}
.side-help{
  margin-top:20px;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);background:var(--panel-solid);
}
.side-help img{width:100%;height:132px;object-fit:cover;}
.side-help-body{padding:16px 18px 20px;}
.side-help-body h3{font-size:15px;margin-bottom:6px;}
.side-help-body p{font-size:13px;color:var(--muted);margin:0 0 12px;line-height:1.7;}

/* ---------- level cards (staggered) ---------- */
.level-grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.level-card{
  display:flex;flex-direction:column;
  border-radius:var(--r-lg);overflow:hidden;
  background:var(--panel);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.level-card:nth-child(even){margin-top:40px;}
.level-card:hover{transform:translateY(-4px);border-color:var(--cyan);box-shadow:var(--shadow),var(--glow-cyan);}
.level-card .card-media{height:150px;overflow:hidden;position:relative;}
.level-card .card-media img{width:100%;height:100%;object-fit:cover;}
.level-card .card-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,20,.15),rgba(9,14,26,.92));
}
.level-card .card-top{
  padding:22px 24px 18px;border-bottom:1px solid var(--line);
  display:flex;align-items:flex-start;justify-content:space-between;gap:14px;
}
.level-card.no-media .card-top{padding-top:26px;}
.level-name{margin:0;font-size:1.2rem;}
.level-sub{margin:6px 0 0;font-size:13px;color:var(--muted);}
.level-price{
  text-align:right;white-space:nowrap;
}
.level-price strong{display:block;font-size:20px;color:var(--cyan);font-weight:800;}
.level-price span{font-size:12px;color:var(--muted);}
.level-body{padding:20px 24px 24px;display:flex;flex-direction:column;flex:1;}
.level-body ul{margin-bottom:22px;display:grid;gap:10px;}
.level-body li{
  position:relative;padding-left:22px;font-size:14px;color:#C7D1E3;line-height:1.7;
}
.level-body li::before{
  content:"";position:absolute;left:0;top:10px;width:8px;height:8px;border-radius:3px;
  background:linear-gradient(135deg,var(--cyan),var(--brand));
  box-shadow:0 0 10px rgba(39,224,200,.4);
}
.level-body .btn{margin-top:auto;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:999px;font-size:12px;font-weight:600;
  background:rgba(255,255,255,.06);color:#CBD6E8;border:1px solid var(--line);
}
.badge-hot{background:rgba(255,122,69,.14);color:#FFD0BB;border-color:rgba(255,122,69,.34);}
.badge-cyan{background:rgba(39,224,200,.12);color:#B7F4EA;border-color:rgba(39,224,200,.32);}

/* ---------- compare bar ---------- */
.compare-list{display:grid;gap:14px;}
.compare-row{
  display:grid;
  grid-template-columns:190px minmax(0,1fr) auto;
  gap:22px;align-items:center;
  padding:20px 24px;
  border-radius:var(--r-md);
  background:linear-gradient(100deg,rgba(16,24,44,.85),rgba(12,19,34,.62));
  border:1px solid var(--line);
  transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.compare-row:hover{border-color:var(--cyan);transform:translateY(-2px);box-shadow:var(--glow-cyan);}
.compare-name{font-size:16px;font-weight:700;color:#fff;}
.compare-name small{display:block;font-size:12px;color:var(--muted);font-weight:400;margin-top:4px;}
.compare-facts{display:flex;flex-wrap:wrap;gap:10px;}
.fact{
  padding:6px 12px;border-radius:999px;font-size:13px;color:#C3CDE0;
  background:rgba(255,255,255,.04);border:1px solid var(--line);
}
.compare-row .btn{white-space:nowrap;}

/* ---------- steps ---------- */
.steps{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;
  counter-reset:step;
}
.step{
  position:relative;padding:26px 22px 24px;
  border-radius:var(--r-md);
  background:var(--panel-solid);
  border:1px solid var(--line);
  transition:border-color .25s ease,transform .25s ease;
}
.step:hover{border-color:rgba(43,123,255,.45);transform:translateY(-3px);}
.step::before{
  counter-increment:step;content:"0" counter(step);
  display:block;font-size:26px;font-weight:800;letter-spacing:1px;
  background:linear-gradient(120deg,var(--cyan),var(--brand));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  margin-bottom:12px;
}
.step h3{font-size:16px;margin-bottom:8px;}
.step p{font-size:14px;color:var(--muted);margin:0;line-height:1.75;}

/* ---------- evidence ---------- */
.evidence{
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:34px;align-items:center;
}
.evidence-media{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.evidence-media img{width:100%;height:340px;object-fit:cover;}
.evidence-figures{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:24px;}
.figure{
  padding:18px;border-radius:var(--r-md);
  background:rgba(16,24,44,.7);border:1px solid var(--line);
}
.figure strong{display:block;font-size:22px;font-weight:800;color:#fff;}
.figure span{font-size:13px;color:var(--muted);}
.check-list{display:grid;gap:12px;margin-top:18px;}
.check-list li{position:relative;padding-left:26px;font-size:14px;color:#C7D1E3;}
.check-list li i{position:absolute;left:0;top:6px;color:var(--cyan);font-size:13px;}

/* ---------- faq ---------- */
.faq-wrap{max-width:880px;}
.faq-item{
  border-radius:var(--r-md);
  background:rgba(14,21,38,.7);
  border:1px solid var(--line);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item.is-open{border-color:rgba(39,224,200,.42);box-shadow:var(--glow-cyan);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;background:transparent;border:0;cursor:pointer;text-align:left;
  color:#fff;font-size:16px;font-weight:600;line-height:1.6;
}
.faq-q:hover{color:var(--cyan);}
.faq-q .fa-chevron-down{color:var(--muted);font-size:13px;transition:transform .28s ease;}
.faq-item.is-open .faq-q .fa-chevron-down{transform:rotate(180deg);color:var(--cyan);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .32s ease;
}
.faq-a p{
  margin:0;padding:0 22px 20px;font-size:14.5px;color:var(--muted);line-height:1.85;
  border-top:1px solid var(--line);padding-top:16px;
}
.faq-item.is-open .faq-a{max-height:320px;}

/* ---------- cta ---------- */
.cta-band{padding:0 0 88px;}
.cta-card{
  position:relative;overflow:hidden;
  padding:52px 48px;border-radius:26px;
  background:linear-gradient(120deg,rgba(43,123,255,.22),rgba(39,224,200,.14) 60%,rgba(255,122,69,.16));
  border:1px solid rgba(255,255,255,.14);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  box-shadow:0 26px 60px rgba(0,0,0,.5),0 0 60px rgba(43,123,255,.16) inset;
  text-align:center;
}
.cta-card h2{font-size:clamp(1.5rem,2.2vw,1.9rem);margin-bottom:12px;}
.cta-card p{max-width:620px;margin:0 auto 28px;color:#CBD6E8;font-size:15px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;}

/* ---------- footer ---------- */
.site-footer{
  background:#050810;
  border-top:1px solid var(--line);
  padding:60px 0 28px;
  position:relative;z-index:1;
}
.footer-top{
  display:grid;grid-template-columns:minmax(0,1.5fr) repeat(3,minmax(0,1fr));
  gap:36px;padding-bottom:36px;border-bottom:1px solid var(--line);
}
.footer-brand .logo{margin-bottom:14px;}
.footer-brand p{font-size:14px;color:var(--muted);max-width:340px;line-height:1.8;margin:0;}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:16px;letter-spacing:.5px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:var(--muted);}
.footer-col a:hover{color:var(--cyan);}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  padding-top:22px;font-size:13px;color:#6E7A90;
}
.footer-bottom .tip{color:#5C6880;}

/* ---------- responsive ---------- */
@media screen and (max-width:1023px){
  .nav-links{
    position:fixed;top:64px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:6px;
    padding:18px 24px 26px;
    background:rgba(7,11,20,.98);
    border-bottom:1px solid var(--line);
    transform:translateY(-140%);
    transition:transform .3s ease;
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    max-height:calc(100vh - 64px);
    overflow-y:auto;
  }
  .nav-links.is-open{transform:translateY(0);}
  .nav-links a{padding:12px 14px;font-size:16px;}
  .nav-links a.active::after{left:14px;right:auto;width:28px;bottom:6px;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .nav-search{display:none;}
  .level-layout{grid-template-columns:minmax(0,1fr);}
  .side-filter{position:static;}
  .level-card:nth-child(even){margin-top:0;}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .evidence{grid-template-columns:minmax(0,1fr);}
  .evidence-media img{height:280px;}
}
@media screen and (max-width:767px){
  .grid-container{padding-left:18px;padding-right:18px;}
  .section{padding:56px 0;}
  .page-hero{padding:44px 0 56px;}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));}
  .level-grid{grid-template-columns:minmax(0,1fr);}
  .compare-row{grid-template-columns:minmax(0,1fr);gap:14px;padding:20px;}
  .compare-row .btn{justify-self:start;}
  .evidence-figures{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-card{padding:38px 22px;border-radius:20px;}
  .footer-top{grid-template-columns:minmax(0,1fr);gap:28px;}
  .faq-q{font-size:15px;padding:18px;}
}
@media screen and (max-width:520px){
  .logo span:last-child{font-size:15px;}
  .nav-bar{gap:12px;}
  .hero-actions .btn{width:100%;}
  .steps{grid-template-columns:minmax(0,1fr);}
  .evidence-figures{grid-template-columns:minmax(0,1fr);}
  .level-card .card-top{flex-direction:column;align-items:flex-start;}
  .level-price{text-align:left;}
}

/* roulang page: category2 */
:root{
  --bg:#070B14;
  --bg-2:#0B1220;
  --bg-3:#101A2E;
  --brand:#2B7BFF;
  --cyan:#27E0C8;
  --orange:#FF7A45;
  --text:#E8EEF9;
  --muted:#A8B3C7;
  --border:rgba(255,255,255,.08);
  --border-strong:rgba(255,255,255,.16);
  --glass:rgba(16,24,44,.72);
  --radius-sm:12px;
  --radius:16px;
  --radius-lg:20px;
  --shadow:0 18px 45px rgba(0,0,0,.45);
  --shadow-soft:0 10px 28px rgba(0,0,0,.32);
  --glow-cyan:0 0 24px rgba(39,224,200,.16);
  --sp-1:8px;
  --sp-2:16px;
  --sp-3:24px;
  --sp-4:32px;
  --sp-5:48px;
  --sp-6:72px;
}

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

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

body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-2;
  background:
    radial-gradient(900px 520px at 12% -12%, rgba(43,123,255,.20), transparent 62%),
    radial-gradient(760px 500px at 92% 4%, rgba(39,224,200,.13), transparent 64%),
    linear-gradient(180deg,#070B14 0%,#060A12 55%,#070B14 100%);
}

body::after{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.026) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.026) 1px, transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(circle at 50% 0%, #000 18%, transparent 76%);
  mask-image:radial-gradient(circle at 50% 0%, #000 18%, transparent 76%);
}

img{max-width:100%;display:block;border:0;}
a{color:var(--cyan);text-decoration:none;transition:color .2s ease;}
a:hover{color:#7ff3e2;}
h1,h2,h3,h4{color:var(--text);margin:0 0 .6em;line-height:1.3;font-weight:700;letter-spacing:0;}
p{margin:0 0 1em;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px;}

.grid-container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
.row{max-width:1240px;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(7,11,20,.82);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid var(--border);
}
.site-header .nav-bar{
  display:flex;
  align-items:center;
  gap:24px;
  height:64px;
  padding:0;
  background:transparent;
  border:0;
  flex-wrap:nowrap;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--text);
  font-weight:800;
  font-size:17px;
  white-space:nowrap;
  flex-shrink:0;
}
.logo:hover{color:#fff;}
.logo-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:32px;
  height:32px;
  border-radius:10px;
  background:linear-gradient(135deg,var(--brand),var(--cyan));
  color:#04121F;
  font-size:16px;
  font-weight:800;
  box-shadow:0 6px 18px rgba(43,123,255,.35);
}
.nav-links{
  display:flex;
  align-items:center;
  gap:6px;
  flex:1 1 auto;
}
.nav-links a{
  position:relative;
  color:var(--muted);
  font-size:15px;
  font-weight:500;
  padding:8px 14px;
  border-radius:10px;
  white-space:nowrap;
}
.nav-links a:hover{color:var(--text);background:rgba(255,255,255,.04);}
.nav-links a.active{color:#fff;}
.nav-links a.active::after{
  content:"";
  position:absolute;
  left:14px;
  right:14px;
  bottom:2px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--cyan),var(--brand));
  box-shadow:0 0 12px rgba(39,224,200,.6);
}
.nav-right{
  display:flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.nav-search{
  display:flex;
  align-items:center;
  gap:8px;
  padding:4px 4px 4px 14px;
  border-radius:999px;
  background:rgba(255,255,255,.05);
  border:1px solid var(--border);
  transition:border-color .2s ease, box-shadow .2s ease;
}
.nav-search:focus-within{
  border-color:rgba(39,224,200,.65);
  box-shadow:0 0 0 3px rgba(39,224,200,.12);
}
.nav-search i{color:var(--muted);font-size:13px;}
.nav-search input{
  width:132px;
  border:0;
  background:transparent;
  color:var(--text);
  font-size:14px;
  outline:none;
  padding:6px 0;
}
.nav-search input::placeholder{color:#6f7d95;}
.nav-search button{
  border:0;
  cursor:pointer;
  padding:7px 14px;
  border-radius:999px;
  font-size:13px;
  font-weight:600;
  color:#061726;
  background:linear-gradient(135deg,var(--cyan),#5ec6ff);
  transition:filter .2s ease;
}
.nav-search button:hover{filter:brightness(1.08);}
.nav-toggle{
  display:none;
  width:40px;
  height:40px;
  border-radius:12px;
  border:1px solid var(--border);
  background:rgba(255,255,255,.05);
  color:var(--text);
  font-size:16px;
  cursor:pointer;
  align-items:center;
  justify-content:center;
}
.nav-toggle:hover{border-color:rgba(39,224,200,.6);color:var(--cyan);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 26px;
  border-radius:var(--radius-sm);
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  border:1px solid transparent;
  cursor:pointer;
  text-align:center;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,filter .22s ease;
}
.btn-primary{
  background:linear-gradient(120deg,var(--orange),var(--brand));
  color:#fff;
  box-shadow:0 12px 28px rgba(43,123,255,.32),0 0 22px rgba(255,122,69,.18);
}
.btn-primary:hover{
  color:#fff;
  filter:brightness(1.08);
  transform:translateY(-2px);
  box-shadow:0 16px 34px rgba(43,123,255,.42),0 0 26px rgba(255,122,69,.24);
}
.btn-ghost{
  background:rgba(255,255,255,.04);
  border-color:var(--border-strong);
  color:var(--text);
}
.btn-ghost:hover{
  color:#fff;
  border-color:rgba(39,224,200,.6);
  background:rgba(39,224,200,.10);
  transform:translateY(-2px);
}
.btn-sm{padding:9px 18px;font-size:14px;border-radius:10px;}
.btn:disabled,.btn.is-disabled{filter:saturate(.4) brightness(.75);cursor:not-allowed;transform:none;}

/* ---------- 标签 / 徽章 ---------- */
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 13px;
  border-radius:999px;
  font-size:13px;
  font-weight:600;
  letter-spacing:.2px;
  color:var(--cyan);
  background:rgba(39,224,200,.10);
  border:1px solid rgba(39,224,200,.28);
}
.tag-warm{color:#ffb08a;background:rgba(255,122,69,.10);border-color:rgba(255,122,69,.30);}
.tag-blue{color:#8fbaff;background:rgba(43,123,255,.12);border-color:rgba(43,123,255,.32);}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 11px;
  border-radius:8px;
  font-size:12.5px;
  color:var(--muted);
  background:rgba(255,255,255,.05);
  border:1px solid var(--border);
}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13.5px;
  color:var(--muted);
  margin-bottom:18px;
}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--cyan);}
.breadcrumb span.sep{opacity:.5;}
.breadcrumb .now{color:var(--text);}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  overflow:hidden;
  padding:72px 0 84px;
  border-bottom:1px solid var(--border);
}
.hero-bg{
  position:absolute;
  inset:0;
  z-index:0;
}
.hero-bg img{
  width:100%;
  height:100%;
  object-fit:cover;
  opacity:.42;
}
.hero-bg::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    linear-gradient(100deg,#070B14 6%,rgba(7,11,20,.86) 46%,rgba(7,11,20,.55) 100%),
    linear-gradient(0deg,rgba(7,11,20,.96),rgba(7,11,20,.28) 60%);
}
.hero-beam{
  position:absolute;
  top:-30%;
  left:-10%;
  width:70%;
  height:170%;
  z-index:0;
  background:linear-gradient(115deg,rgba(43,123,255,.16),transparent 62%);
  transform:rotate(8deg);
  pointer-events:none;
}
.hero .grid-container{position:relative;z-index:1;}
.hero-row{align-items:center;}
.hero-copy h1{
  font-size:clamp(2.2rem,4.4vw,3.4rem);
  font-weight:800;
  line-height:1.18;
  margin:16px 0 18px;
  background:linear-gradient(100deg,#ffffff 24%,#bcd6ff 62%,#7ff0e0 100%);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-sub{
  font-size:clamp(1rem,1.5vw,1.12rem);
  color:#c8d6ea;
  max-width:560px;
  margin-bottom:14px;
  font-weight:600;
}
.hero-desc{
  color:var(--muted);
  max-width:600px;
  font-size:15.5px;
  margin-bottom:28px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-bottom:30px;
}
.hero-points{
  display:flex;
  flex-wrap:wrap;
  gap:12px 26px;
  padding-top:22px;
  border-top:1px solid var(--border);
}
.hero-points li{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--muted);
}
.hero-points i{color:var(--cyan);font-size:13px;}

.hero-panel{
  background:var(--glass);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow), inset 0 1px 0 rgba(255,255,255,.06);
  padding:26px;
}
.panel-head{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:15px;
  font-weight:700;
  color:#fff;
  padding-bottom:16px;
  margin-bottom:6px;
  border-bottom:1px solid var(--border);
}
.panel-head .dot{
  width:9px;
  height:9px;
  border-radius:50%;
  background:var(--cyan);
  box-shadow:0 0 12px rgba(39,224,200,.85);
}
.panel-list li{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:13px 0;
  border-bottom:1px dashed rgba(255,255,255,.07);
  font-size:14.5px;
}
.panel-list li:last-child{border-bottom:0;}
.panel-list span{color:var(--muted);}
.panel-list strong{color:#fff;font-weight:700;font-variant-numeric:tabular-nums;}
.panel-tip{
  margin:14px 0 0;
  font-size:13px;
  color:#8494ab;
  line-height:1.7;
}

/* ---------- 板块通用 ---------- */
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.sec-head{max-width:760px;margin-bottom:44px;}
.sec-head h2{font-size:clamp(1.6rem,2.6vw,2rem);font-weight:800;}
.sec-head p{color:var(--muted);font-size:15.5px;margin:0;}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}

/* ---------- 标签筛选 ---------- */
.filter-bar{
  display:flex;
  gap:10px;
  overflow-x:auto;
  padding:4px 0 6px;
  margin-bottom:36px;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.filter-bar::-webkit-scrollbar{display:none;}
.filter-chip{
  flex:0 0 auto;
  padding:10px 20px;
  border-radius:999px;
  font-size:14px;
  font-weight:600;
  color:var(--muted);
  background:rgba(255,255,255,.04);
  border:1px solid var(--border);
  cursor:pointer;
  transition:all .22s ease;
}
.filter-chip:hover{color:var(--text);border-color:var(--border-strong);}
.filter-chip.active{
  color:#fff;
  border-color:rgba(39,224,200,.6);
  background:rgba(39,224,200,.12);
  box-shadow:var(--glow-cyan);
}

/* ---------- 单列大卡 ---------- */
.gift-list{
  display:flex;
  flex-direction:column;
  gap:26px;
}
.gift-card{
  display:grid;
  grid-template-columns:minmax(0,340px) minmax(0,1fr);
  background:var(--glass);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-soft);
  overflow:hidden;
  transition:transform .28s ease, border-color .28s ease, box-shadow .28s ease;
}
.gift-card:hover{
  transform:translateY(-4px);
  border-color:rgba(39,224,200,.55);
  box-shadow:0 22px 50px rgba(0,0,0,.5), var(--glow-cyan);
}
.gift-card.is-hidden{display:none;}
.gift-media{
  position:relative;
  min-height:248px;
  overflow:hidden;
}
.gift-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  opacity:.9;
  transition:transform .5s ease;
}
.gift-card:hover .gift-media img{transform:scale(1.04);}
.gift-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,rgba(7,11,20,.10),rgba(7,11,20,.68));
}
.gift-body{
  padding:26px 28px;
  display:flex;
  flex-direction:column;
  gap:14px;
}
.gift-tags{display:flex;flex-wrap:wrap;gap:8px;}
.gift-body h3{font-size:1.22rem;margin:0;}
.gift-body .gift-text{color:var(--muted);font-size:15px;margin:0;}
.gift-spec{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:14px;
  padding:16px 0 4px;
  border-top:1px solid var(--border);
}
.gift-spec div{font-size:13.5px;color:var(--muted);}
.gift-spec strong{
  display:block;
  color:#fff;
  font-size:14.5px;
  font-weight:700;
  margin-top:4px;
}
.gift-foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  margin-top:auto;
}

/* ---------- 属性面板 / 数据卡 ---------- */
.stat-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
}
.stat-card{
  position:relative;
  padding:26px 24px;
  border-radius:var(--radius);
  background:linear-gradient(160deg,rgba(16,24,44,.9),rgba(11,18,32,.72));
  border:1px solid var(--border);
  box-shadow:var(--shadow-soft);
  overflow:hidden;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.stat-card::before{
  content:"";
  position:absolute;
  top:0;left:0;
  width:100%;
  height:2px;
  background:linear-gradient(90deg,var(--cyan),transparent 70%);
}
.stat-card:hover{
  transform:translateY(-4px);
  border-color:rgba(39,224,200,.5);
  box-shadow:0 20px 42px rgba(0,0,0,.46),var(--glow-cyan);
}
.stat-card .num{
  font-size:2rem;
  font-weight:800;
  line-height:1.2;
  color:#fff;
  font-variant-numeric:tabular-nums;
}
.stat-card .num em{
  font-style:normal;
  font-size:1rem;
  color:var(--cyan);
  margin-left:6px;
  font-weight:700;
}
.stat-card h3{font-size:1rem;margin:10px 0 8px;}
.stat-card p{font-size:13.8px;color:var(--muted);margin:0;line-height:1.75;}

/* ---------- 时间轴 ---------- */
.timeline-wrap{
  background:rgba(11,18,32,.55);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:36px 34px;
  box-shadow:var(--shadow-soft);
}
.timeline{position:relative;padding-left:34px;}
.timeline::before{
  content:"";
  position:absolute;
  left:7px;
  top:8px;
  bottom:8px;
  width:2px;
  border-radius:2px;
  background:linear-gradient(180deg,var(--cyan),rgba(43,123,255,.22));
}
.tl-item{position:relative;padding-bottom:34px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";
  position:absolute;
  left:-34px;
  top:7px;
  width:16px;
  height:16px;
  border-radius:50%;
  background:var(--bg-2);
  border:2px solid var(--cyan);
  box-shadow:0 0 0 4px rgba(39,224,200,.12);
}
.tl-time{
  display:inline-block;
  font-size:13.5px;
  font-weight:700;
  color:var(--cyan);
  letter-spacing:.3px;
  margin-bottom:8px;
}
.tl-item h3{font-size:1.08rem;margin:0 0 8px;}
.tl-item p{color:var(--muted);font-size:14.6px;margin:0;}

/* ---------- FAQ ---------- */
.faq-list{
  display:flex;
  flex-direction:column;
  gap:14px;
  max-width:900px;
  margin:0 auto;
}
.faq-item{
  background:var(--glass);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border:1px solid var(--border);
  border-radius:var(--radius);
  overflow:hidden;
  transition:border-color .25s ease, box-shadow .25s ease;
}
.faq-item.open{
  border-color:rgba(39,224,200,.5);
  box-shadow:var(--glow-cyan);
}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 24px;
  background:transparent;
  border:0;
  cursor:pointer;
  color:var(--text);
  font-size:16px;
  font-weight:600;
  text-align:left;
  line-height:1.6;
}
.faq-q:hover{color:#fff;}
.faq-q i{
  flex:0 0 auto;
  color:var(--cyan);
  font-size:14px;
  transition:transform .28s ease;
}
.faq-item.open .faq-q i{transform:rotate(180deg);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .32s ease;
}
.faq-a p{
  margin:0;
  padding:0 24px 22px;
  color:var(--muted);
  font-size:14.8px;
  line-height:1.85;
  border-top:1px solid var(--border);
  padding-top:16px;
}

/* ---------- CTA ---------- */
.cta-band{padding:20px 0 96px;}
.cta-card{
  position:relative;
  overflow:hidden;
  border-radius:24px;
  padding:52px 48px;
  background:
    linear-gradient(120deg,rgba(43,123,255,.22),rgba(39,224,200,.12) 55%,rgba(255,122,69,.16)),
    rgba(16,24,44,.86);
  border:1px solid rgba(39,224,200,.28);
  box-shadow:0 26px 60px rgba(0,0,0,.5), 0 0 42px rgba(39,224,200,.12);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
}
.cta-card::after{
  content:"";
  position:absolute;
  top:-60%;
  right:-12%;
  width:52%;
  height:220%;
  background:linear-gradient(115deg,rgba(39,224,200,.14),transparent 62%);
  transform:rotate(10deg);
  pointer-events:none;
}
.cta-inner{
  position:relative;
  z-index:1;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:34px;
  flex-wrap:wrap;
}
.cta-inner h2{font-size:clamp(1.5rem,2.4vw,1.9rem);margin-bottom:10px;}
.cta-inner p{color:#c6d5ea;margin:0;max-width:560px;font-size:15.5px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#050810;
  border-top:1px solid var(--border);
  padding:64px 0 28px;
}
.footer-top{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:36px;
  padding-bottom:44px;
  border-bottom:1px solid var(--border);
}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand p{
  color:var(--muted);
  font-size:14px;
  max-width:320px;
  line-height:1.8;
  margin:0;
}
.footer-col h4{
  font-size:15px;
  font-weight:700;
  color:#fff;
  margin:0 0 18px;
}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{color:var(--muted);font-size:14px;}
.footer-col a:hover{color:var(--cyan);}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding-top:24px;
  color:#7d8ba3;
  font-size:13.5px;
}
.footer-bottom .tip{color:#6b788f;}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  .nav-links{
    position:fixed;
    top:64px;
    left:0;
    right:0;
    z-index:99;
    flex-direction:column;
    align-items:stretch;
    gap:2px;
    padding:16px 24px 22px;
    background:rgba(7,11,20,.98);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    border-bottom:1px solid var(--border);
    box-shadow:0 24px 40px rgba(0,0,0,.55);
    opacity:0;
    transform:translateY(-14px);
    pointer-events:none;
    transition:opacity .24s ease, transform .24s ease;
  }
  .nav-links.open{opacity:1;transform:translateY(0);pointer-events:auto;}
  .nav-links a{padding:13px 4px;border-radius:8px;border-bottom:1px solid rgba(255,255,255,.05);}
  .nav-links a:last-child{border-bottom:0;}
  .nav-links a.active::after{left:4px;right:auto;width:42px;bottom:6px;}
  .nav-search{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-right{margin-left:auto;}

  .hero{padding:56px 0 64px;}
  .hero-panel{margin-top:34px;}
  .section{padding:64px 0;}
  .section-tight{padding:50px 0;}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .gift-card{grid-template-columns:minmax(0,280px) minmax(0,1fr);}
  .footer-top{grid-template-columns:1fr 1fr;gap:30px;}
}

@media screen and (max-width:767px){
  .grid-container{padding-left:18px;padding-right:18px;}
  .logo{font-size:16px;}
  .gift-card{grid-template-columns:1fr;}
  .gift-media{min-height:200px;}
  .gift-spec{grid-template-columns:1fr;gap:10px;}
  .gift-spec div{display:flex;align-items:center;justify-content:space-between;gap:12px;}
  .gift-spec strong{margin-top:0;}
  .timeline-wrap{padding:26px 22px;}
  .timeline{padding-left:28px;}
  .tl-item::before{left:-28px;}
  .cta-card{padding:36px 24px;border-radius:20px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .footer-top{grid-template-columns:1fr;gap:28px;}
  .faq-q{padding:17px 18px;font-size:15.2px;}
  .faq-a p{padding:14px 18px 20px;}
}

@media screen and (max-width:519px){
  .nav-right .btn{display:none;}
  .hero-copy h1{font-size:2rem;}
  .hero-actions .btn{width:100%;}
  .stat-grid{grid-template-columns:1fr;}
  .hero-points{flex-direction:column;gap:10px;}
  .section{padding:52px 0;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}