/* roulang page: index */
:root{
  --ink:#16142E;
  --primary:#5B47D8;
  --primary-700:#43329F;
  --primary-50:#EFECFF;
  --gold:#E0B054;
  --teal:#2FA79A;
  --bg:#F7F6FB;
  --surface:#FFFFFF;
  --line:#E9E7F3;
  --text:#2A2740;
  --text-2:#6B6885;
  --text-inv:#F4F2FF;
  --r-card:14px;
  --r-btn:10px;
  --r-badge:6px;
  --sh-1:0 2px 8px rgba(22,20,46,.06);
  --sh-2:0 10px 26px rgba(22,20,46,.12);
  --sh-3:0 16px 44px rgba(22,20,46,.16);
  --sp-section:96px;
  --bs-primary:#5B47D8;
  --bs-body-color:#2A2740;
  --bs-body-bg:#F7F6FB;
  --bs-border-radius:14px;
  --bs-link-color:#5B47D8;
  --bs-link-hover-color:#43329F;
  --bs-font-sans-serif:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,"Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,"Source Han Sans SC",sans-serif;
  font-size:16.5px;
  line-height:1.9;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--text);text-decoration:none;transition:color .2s ease,text-decoration-color .2s ease;}
a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:2px;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text);letter-spacing:.01em;}
h1{font-size:38px;line-height:1.35;}
h2{font-size:26px;line-height:1.4;}
h3{font-size:19px;font-weight:600;line-height:1.5;}
p{margin:0 0 1.1em;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}
.container{max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;width:100%;}
.section{padding:var(--sp-section) 0 0;}
.section-inner{display:block;}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px;}
.section-title{font-size:26px;line-height:1.4;}
.section-desc{margin:10px 0 0;color:var(--text-2);font-size:15.5px;max-width:760px;}
.section-link{font-size:15px;font-weight:600;color:var(--primary);white-space:nowrap;}
.section-link:hover{color:var(--primary-700);}
.eyebrow{
  display:inline-block;font-size:13px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--gold);font-weight:600;margin:0 0 16px;
}
/* ============ 按钮 ============ */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-btn);font-size:15.5px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:all .2s ease;line-height:1.4;
}
.btn-primary-x{background:var(--primary);color:#fff;}
.btn-primary-x:hover{background:var(--primary-700);color:#fff;transform:translateY(-1px);text-decoration:none;}
.btn-primary-x:active{transform:translateY(0);}
.btn-outline-x{background:transparent;color:var(--primary);border-color:var(--primary);}
.btn-outline-x:hover{background:var(--primary-50);color:var(--primary-700);text-decoration:none;}
.btn-gold{background:var(--gold);color:var(--ink);}
.btn-gold:hover{background:#F0C46C;color:var(--ink);transform:translateY(-1px);text-decoration:none;}
.btn-ghost-light{background:rgba(244,242,255,.06);color:var(--text-inv);border-color:rgba(244,242,255,.32);}
.btn-ghost-light:hover{background:rgba(244,242,255,.14);color:#fff;text-decoration:none;}
.btn-sm-x{padding:9px 18px;font-size:14.5px;}
/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.94);
  border-bottom:1px solid var(--line);transition:height .2s ease,box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.nav-wrap{display:flex;align-items:center;gap:28px;height:68px;transition:height .2s ease;}
.site-header.is-scrolled .nav-wrap{height:60px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:32px;height:32px;border-radius:9px;flex-shrink:0;
  background:
    radial-gradient(circle at 30% 30%, rgba(255,255,255,.85) 0 1.5px, transparent 2px),
    radial-gradient(circle at 70% 62%, rgba(224,176,84,.9) 0 1.6px, transparent 2.2px),
    radial-gradient(circle at 45% 78%, rgba(255,255,255,.6) 0 1.2px, transparent 1.8px),
    linear-gradient(140deg,#5B47D8,#2E2566 68%);
  border:1px solid rgba(255,255,255,.16);
}
.brand-text{font-size:19px;font-weight:700;color:var(--ink);letter-spacing:.01em;}
.main-nav{display:flex;align-items:center;gap:4px;margin-right:auto;}
.nav-link{
  display:inline-flex;align-items:center;height:38px;padding:0 14px;border-radius:9px;
  font-size:15.5px;color:var(--text);font-weight:500;position:relative;
}
.nav-link:hover{background:var(--primary-50);color:var(--primary-700);text-decoration:none;}
.nav-link.active{color:var(--primary);font-weight:600;background:var(--primary-50);}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
/* Mega 面板 */
.mega-holder{position:relative;}
.mega-trigger{
  display:inline-flex;align-items:center;gap:6px;height:38px;padding:0 14px;border-radius:9px;
  background:transparent;border:1px solid transparent;font-size:15.5px;color:var(--text);
  font-weight:500;cursor:pointer;
}
.mega-trigger::after{content:"";width:6px;height:6px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg) translateY(-2px);transition:transform .2s ease;}
.mega-holder:hover .mega-trigger,.mega-holder:focus-within .mega-trigger{background:var(--primary-50);color:var(--primary-700);}
.mega-panel{
  position:absolute;top:calc(100% + 12px);right:0;width:880px;max-width:calc(100vw - 40px);
  background:var(--surface);border:1px solid var(--line);border-radius:16px;box-shadow:var(--sh-3);
  padding:26px;display:grid;grid-template-columns:1fr 1fr 1.1fr;gap:26px;
  opacity:0;visibility:hidden;transform:translateY(6px);transition:opacity .18s ease,transform .18s ease,visibility .18s;
}
.mega-holder:hover .mega-panel,.mega-holder:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-col h4{font-size:13px;font-weight:600;color:var(--text-2);letter-spacing:.08em;margin-bottom:14px;text-transform:uppercase;}
.mega-col li{margin-bottom:10px;}
.mega-col a{font-size:15px;color:var(--text);display:inline-block;}
.mega-col a:hover{color:var(--primary);}
.mega-card{
  display:block;border-radius:12px;padding:18px;background:var(--primary-50);
  border:1px solid #DDD6FB;
}
.mega-card:hover{text-decoration:none;box-shadow:var(--sh-1);}
.mega-card strong{display:block;font-size:16px;color:var(--primary-700);margin-bottom:6px;}
.mega-card span{font-size:14px;color:var(--text-2);line-height:1.7;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);
  background:var(--surface);cursor:pointer;position:relative;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);width:18px;height:2px;background:var(--ink);border-radius:2px;transition:.2s;
}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.drawer{
  position:fixed;inset:0;z-index:1200;background:var(--surface);padding:20px;
  transform:translateX(100%);transition:transform .28s ease;overflow-y:auto;
}
body.drawer-open .drawer{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
.drawer-close{width:42px;height:42px;border-radius:10px;border:1px solid var(--line);background:var(--surface);font-size:20px;color:var(--text);cursor:pointer;line-height:1;}
.drawer a.drawer-link{display:block;padding:14px 4px;font-size:17px;font-weight:600;border-bottom:1px solid var(--line);min-height:44px;}
.drawer a.drawer-link.active{color:var(--primary);}
.drawer-group{margin-top:26px;}
.drawer-group h4{font-size:13px;letter-spacing:.08em;color:var(--text-2);margin-bottom:10px;text-transform:uppercase;}
.drawer-group a{display:block;padding:11px 4px;font-size:15px;color:var(--text-2);min-height:44px;}
.drawer .btn-x{width:100%;margin-top:24px;}
/* ============ Hero ============ */
.hero{position:relative;background:var(--ink);color:var(--text-inv);overflow:hidden;}
.hero-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.5;}
.hero-veil{
  position:absolute;inset:0;
  background:
    radial-gradient(circle at 18% 26%, rgba(95,71,216,.42), transparent 46%),
    radial-gradient(circle at 82% 12%, rgba(224,176,84,.16), transparent 42%),
    linear-gradient(180deg, rgba(22,20,46,.72) 0%, rgba(22,20,46,.78) 62%, rgba(28,26,58,.94) 100%);
}
.hero-stars{
  position:absolute;inset:0;opacity:.35;
  background-image:
    radial-gradient(1.4px 1.4px at 12% 22%, rgba(255,255,255,.9), transparent 60%),
    radial-gradient(1.2px 1.2px at 42% 68%, rgba(255,255,255,.75), transparent 60%),
    radial-gradient(1.6px 1.6px at 76% 34%, rgba(224,176,84,.85), transparent 60%),
    radial-gradient(1.1px 1.1px at 62% 82%, rgba(255,255,255,.7), transparent 60%),
    radial-gradient(1.3px 1.3px at 88% 72%, rgba(255,255,255,.65), transparent 60%),
    radial-gradient(1px 1px at 26% 88%, rgba(255,255,255,.6), transparent 60%);
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;padding-top:88px;padding-bottom:96px;}
.hero h1{color:#fff;font-size:38px;line-height:1.35;margin:0 0 18px;max-width:16em;}
.hero-sub{font-size:17px;line-height:1.85;color:rgba(244,242,255,.86);margin:0 0 30px;max-width:26em;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:36px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:34px;border-top:1px solid rgba(255,255,255,.14);padding-top:22px;}
.hero-stats li{display:flex;flex-direction:column;gap:2px;}
.hero-stats strong{font-size:26px;font-weight:700;color:#fff;font-variant-numeric:tabular-nums;line-height:1.2;}
.hero-stats span{font-size:13.5px;color:rgba(244,242,255,.62);}
.hero-card{
  background:rgba(255,255,255,.045);border:1px solid rgba(255,255,255,.12);border-radius:16px;
  padding:28px;color:var(--text-inv);
}
.tier-badge{
  display:inline-flex;align-items:center;gap:8px;padding:5px 12px;border-radius:var(--r-badge);
  background:var(--gold);color:var(--ink);font-size:13px;font-weight:700;letter-spacing:.02em;
}
.hero-card-title{font-size:14px;letter-spacing:.1em;color:rgba(244,242,255,.6);margin:18px 0 14px;text-transform:uppercase;}
.hero-card-list li{
  position:relative;padding-left:20px;font-size:15.5px;line-height:1.8;
  color:rgba(244,242,255,.9);margin-bottom:12px;
}
.hero-card-list li::before{
  content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:2px;
  background:var(--teal);transform:rotate(45deg);
}
.hero-card-price{display:flex;align-items:baseline;gap:8px;margin:22px 0 10px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);}
.hero-card-price .price{font-size:32px;font-weight:700;color:var(--gold);font-variant-numeric:tabular-nums;letter-spacing:.01em;}
.hero-card-price .unit{font-size:14px;color:rgba(244,242,255,.6);}
.hero-card-note{font-size:13.5px;color:rgba(244,242,255,.66);margin:0;}
/* ============ 数据条 ============ */
.stat-band{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:28px 0 0;}
.stat-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:24px 26px;box-shadow:var(--sh-1);}
.stat-item strong{display:block;font-size:30px;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;line-height:1.2;}
.stat-item span{display:block;font-size:14px;color:var(--text-2);margin-top:6px;line-height:1.7;}
/* ============ 权益对比表 ============ */
.compare{border:1px solid var(--line);border-radius:var(--r-card);background:var(--surface);box-shadow:var(--sh-1);overflow-x:auto;-webkit-overflow-scrolling:touch;}
.compare-grid{display:grid;grid-template-columns:220px repeat(4,minmax(150px,1fr));min-width:880px;}
.c-corner{position:sticky;left:0;z-index:2;background:var(--surface);border-bottom:1px solid var(--line);padding:20px 24px;}
.c-head{
  padding:20px 24px;border-bottom:1px solid var(--line);border-left:1px solid var(--line);
  display:flex;flex-direction:column;gap:4px;
}
.c-head .tier-name{font-size:17px;font-weight:700;color:var(--text);}
.c-head small{font-size:13.5px;color:var(--text-2);font-variant-numeric:tabular-nums;}
.c-head.is-rec{background:var(--primary-50);border-top:3px solid var(--primary);position:relative;padding-top:22px;}
.rec-tag{
  position:absolute;top:-1px;right:12px;background:var(--gold);color:var(--ink);
  font-size:12px;font-weight:700;padding:2px 9px;border-radius:0 0 var(--r-badge) var(--r-badge);
}
.c-group{grid-column:1 / -1;background:#F3F1FA;padding:10px 24px;font-size:13.5px;font-weight:600;color:var(--text-2);letter-spacing:.06em;}
.c-row-head{
  position:sticky;left:0;z-index:1;background:var(--surface);padding:16px 24px;font-size:15px;
  color:var(--text);border-bottom:1px solid var(--line);
}
.c-cell{
  padding:16px 24px;border-left:1px solid var(--line);border-bottom:1px solid var(--line);
  display:flex;align-items:center;font-size:15px;color:var(--text);font-variant-numeric:tabular-nums;
}
.c-cell.is-rec{background:var(--primary-50);}
.c-cell.is-on{color:var(--primary-700);font-weight:600;}
.c-cell.is-off{color:#B9B6C9;}
.compare-foot{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;margin-top:24px;}
.compare-note{font-size:14px;color:var(--text-2);margin:0;max-width:640px;}
/* ============ 等级亮点（交错图文） ============ */
.tier-row{display:grid;grid-template-columns:5fr 6fr;gap:56px;align-items:center;padding:56px 0;border-top:1px solid var(--line);}
.tier-row:first-of-type{border-top:0;padding-top:16px;}
.tier-row.is-rev .tier-media{order:-1;}
.tier-circle{
  width:56px;height:56px;border-radius:50%;border:1.5px solid var(--gold);
  display:flex;align-items:center;justify-content:center;font-size:19px;font-weight:700;
  color:var(--gold);margin-bottom:18px;font-family:Georgia,"Times New Roman",serif;
}
.tier-name{font-size:22px;font-weight:700;color:var(--ink);margin:0 0 6px;}
.tier-price{font-size:14.5px;color:var(--text-2);margin:0 0 18px;font-variant-numeric:tabular-nums;}
.tier-points li{position:relative;padding-left:22px;margin-bottom:12px;font-size:15.5px;color:var(--text);line-height:1.8;}
.tier-points li::before{
  content:"";position:absolute;left:2px;top:.7em;width:8px;height:8px;border-radius:2px;
  background:var(--primary);transform:rotate(45deg);
}
.tier-row .btn-x{margin-top:22px;}
.tier-media{border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);}
.tier-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .24s ease-out;}
.tier-media:hover img{transform:scale(1.03);}
/* ============ 专属内容预览 ============ */
.ex-grid{display:grid;grid-template-columns:8fr 4fr;gap:24px;}
.ex-main{
  position:relative;display:block;border-radius:var(--r-card);overflow:hidden;background:var(--surface);
  border:1px solid var(--line);box-shadow:var(--sh-1);transition:transform .24s ease-out,box-shadow .24s ease-out;
}
.ex-main:hover{transform:translateY(-4px);box-shadow:var(--sh-2);text-decoration:none;}
.ex-main .thumb{position:relative;overflow:hidden;}
.ex-main img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .24s ease-out;}
.ex-main:hover img{transform:scale(1.03);}
.lock-tag{
  position:absolute;left:14px;top:14px;background:var(--gold);color:var(--ink);
  font-size:12.5px;font-weight:700;padding:4px 10px;border-radius:var(--r-badge);
}
.ex-body{padding:24px 26px 26px;}
.ex-body h3{font-size:20px;margin-bottom:10px;}
.ex-body p{font-size:15px;color:var(--text-2);margin:0;}
.ex-side{display:flex;flex-direction:column;gap:16px;}
.ex-item{
  display:flex;gap:14px;align-items:center;background:var(--surface);border:1px solid var(--line);
  border-radius:12px;padding:12px;box-shadow:var(--sh-1);transition:transform .24s ease-out,box-shadow .24s ease-out;position:relative;overflow:hidden;
}
.ex-item:hover{transform:translateX(3px);box-shadow:var(--sh-2);text-decoration:none;}
.ex-thumb{width:64px;height:64px;flex-shrink:0;border-radius:10px;overflow:hidden;background:var(--primary-50);}
.ex-thumb img{width:100%;height:100%;object-fit:cover;}
.ex-item strong{display:block;font-size:15px;font-weight:600;color:var(--text);line-height:1.55;}
.ex-item span{display:block;font-size:13px;color:var(--text-2);margin-top:3px;}
.ex-item.is-locked .ex-thumb::after{
  content:"🔒";position:absolute;left:0;top:0;width:64px;height:64px;display:flex;align-items:center;justify-content:center;
  background:rgba(22,20,46,.45);color:#fff;font-size:16px;border-radius:12px 0 0 12px;
}
.ex-item.is-locked .ex-thumb{position:relative;}
.ex-item.is-locked strong{color:var(--text-2);}
/* ============ 资讯列表 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .24s ease-out,box-shadow .24s ease-out;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);text-decoration:none;}
.news-thumb{overflow:hidden;background:var(--primary-50);}
.news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .24s ease-out;}
.news-card:hover .news-thumb img{transform:scale(1.03);}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.badge-teal{
  align-self:flex-start;background:rgba(47,167,154,.12);color:#1F7D73;
  font-size:12.5px;font-weight:600;padding:4px 10px;border-radius:var(--r-badge);
}
.news-title{font-size:17px;font-weight:600;line-height:1.6;color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:3.2em;}
.news-desc{font-size:14.5px;color:var(--text-2);line-height:1.75;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:12px;border-top:1px solid var(--line);font-size:13.5px;color:var(--text-2);}
.news-meta time{font-variant-numeric:tabular-nums;}
.news-meta .go{color:var(--primary);font-weight:600;}
.empty-state{
  grid-column:1 / -1;border:1px dashed #D6D2E8;border-radius:var(--r-card);
  padding:56px 24px;text-align:center;color:var(--text-2);background:var(--surface);
}
.empty-state .dot{
  width:44px;height:44px;margin:0 auto 16px;border-radius:50%;
  background:radial-gradient(circle at 35% 35%, #C9C2F2, #EFECFF);border:1px solid #DDD6FB;
}
/* ============ 会员说 ============ */
.voice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.voice{border-left:3px solid var(--primary);padding:4px 0 4px 20px;}
.voice p{font-size:15.5px;line-height:1.85;color:var(--text);margin:0 0 12px;}
.voice footer{font-size:13.5px;color:var(--text-2);}
/* ============ FAQ ============ */
.faq{margin-top:8px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:first-child{border-top:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;gap:14px;
  padding:20px 0;font-size:16.5px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"+";flex-shrink:0;width:24px;height:24px;border-radius:6px;background:var(--primary-50);
  color:var(--primary);font-size:17px;line-height:24px;text-align:center;transition:transform .2s ease;
}
.faq-item[open] summary{color:var(--primary);}
.faq-item[open] summary::before{content:"×";transform:rotate(0deg);background:var(--primary);color:#fff;}
.faq-body{padding:0 0 22px 38px;font-size:15.5px;line-height:1.85;color:var(--text-2);}
.faq-body p{margin:0;}
/* ============ CTA ============ */
.cta-band{margin-top:var(--sp-section);}
.cta-box{
  position:relative;overflow:hidden;border-radius:20px;color:var(--text-inv);
  background:linear-gradient(135deg,#1C1940 0%,#2A2464 58%,#332A76 100%);
  border:1px solid rgba(255,255,255,.08);
  padding:56px 56px;display:grid;grid-template-columns:1.4fr 1fr;gap:44px;align-items:center;min-height:240px;
}
.cta-box::after{
  content:"";position:absolute;inset:0;opacity:.3;pointer-events:none;
  background-image:
    radial-gradient(1.5px 1.5px at 15% 30%, rgba(255,255,255,.8), transparent 60%),
    radial-gradient(1.2px 1.2px at 72% 22%, rgba(224,176,84,.9), transparent 60%),
    radial-gradient(1.3px 1.3px at 48% 82%, rgba(255,255,255,.65), transparent 60%),
    radial-gradient(1px 1px at 88% 68%, rgba(255,255,255,.6), transparent 60%);
}
.cta-box h2{color:#fff;font-size:28px;margin-bottom:16px;}
.cta-safes{display:flex;flex-wrap:wrap;gap:22px;margin:0;position:relative;z-index:1;}
.cta-safes li{position:relative;padding-left:20px;font-size:14.5px;color:rgba(244,242,255,.82);}
.cta-safes li::before{content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:50%;background:var(--teal);}
.cta-right{position:relative;z-index:1;text-align:left;}
.cta-price{font-size:34px;font-weight:700;color:var(--gold);font-variant-numeric:tabular-nums;line-height:1.2;}
.cta-price small{font-size:14px;color:rgba(244,242,255,.66);font-weight:400;margin-left:6px;}
.cta-right .btn-x{margin-top:20px;}
.cta-sub{display:block;margin-top:14px;font-size:14px;color:rgba(244,242,255,.7);}
.cta-sub:hover{color:#fff;}
/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:var(--text-inv);margin-top:var(--sp-section);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-text{color:#fff;}
.footer-note{font-size:14px;line-height:1.8;color:rgba(244,242,255,.66);margin:0;max-width:30em;}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:rgba(244,242,255,.72);}
.footer-col a:hover{color:#fff;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13.5px;color:rgba(244,242,255,.55);}
/* ============ 响应式 ============ */
@media (max-width:1199px){
  .container{max-width:960px;}
  .hero-inner{gap:36px;}
  .hero h1{font-size:34px;}
  .mega-panel{width:720px;grid-template-columns:1fr 1fr;}
  .mega-panel .mega-card-col{display:none;}
}
@media (max-width:991px){
  .container{max-width:100%;}
  .main-nav{display:none;}
  .nav-toggle{display:block;}
  .nav-actions .btn-x{display:none;}
  .hero-inner{grid-template-columns:1fr;padding-top:64px;padding-bottom:72px;}
  .hero h1{font-size:32px;max-width:none;}
  .ex-grid{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .voice-grid{grid-template-columns:1fr;}
  .tier-row{grid-template-columns:1fr;gap:28px;padding:44px 0;}
  .tier-row.is-rev .tier-media{order:0;}
  .cta-box{grid-template-columns:1fr;padding:40px 32px;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .stat-band{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:767px){
  :root{--sp-section:56px;}
  body{font-size:16px;}
  h1{font-size:30px;}
  .section-title{font-size:22px;}
  h2{font-size:22px;}
  .hero h1{font-size:27px;}
  .hero-sub{font-size:15.5px;}
  .hero-stats{gap:22px;}
  .hero-card{padding:22px;}
  .news-grid{grid-template-columns:1fr;}
  .compare-grid{min-width:720px;grid-template-columns:170px repeat(4,minmax(130px,1fr));}
  .c-row-head,.c-corner{padding:14px 18px;font-size:14.5px;}
  .c-cell,.c-head{padding:14px 18px;}
  .ex-body{padding:20px;}
  .cta-box{padding:32px 22px;border-radius:16px;}
  .cta-box h2{font-size:22px;}
  .cta-right .btn-x{width:100%;}
  .cta-safes{gap:14px;}
  .hero-actions .btn-x{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
}
@media (max-width:575px){
  .stat-band{grid-template-columns:1fr;}
  .hero-stats{flex-direction:column;gap:14px;}
  .hero-card-price .price{font-size:28px;}
}

/* roulang page: article */
:root{
  --ink:#16142E;
  --primary:#5B47D8;
  --primary-700:#43329F;
  --primary-50:#EFECFF;
  --gold:#E0B054;
  --teal:#2FA79A;
  --bg:#F7F6FB;
  --surface:#FFFFFF;
  --line:#E9E7F3;
  --text:#2A2740;
  --text-2:#6B6885;
  --text-inv:#F4F2FF;
  --r-card:14px;
  --r-btn:10px;
  --r-badge:6px;
  --sh-1:0 2px 8px rgba(22,20,46,.06);
  --sh-2:0 10px 26px rgba(22,20,46,.12);
  --sh-3:0 16px 44px rgba(22,20,46,.16);

  --bs-primary:#5B47D8;
  --bs-body-color:#2A2740;
  --bs-body-bg:#F7F6FB;
  --bs-border-radius:14px;
  --bs-link-color:#5B47D8;
  --bs-link-hover-color:#43329F;
  --bs-font-sans-serif:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Source Han Sans SC",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--primary-700);text-decoration:underline;text-underline-offset:2px}
button{font:inherit;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{font-weight:700;color:var(--ink);margin:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.num{font-variant-numeric:tabular-nums}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:#fff;border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.header-inner{display:flex;align-items:center;gap:16px;height:68px;transition:height .22s ease}
.site-header.is-scrolled .header-inner{height:60px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink);font-size:19px;font-weight:700;letter-spacing:.01em}
.brand:hover{text-decoration:none;color:var(--ink)}
.brand-mark{
  width:32px;height:32px;border-radius:9px;position:relative;flex:0 0 32px;
  background:linear-gradient(140deg,#5B47D8 0%,#16142E 100%);
  display:inline-flex;align-items:center;justify-content:center;
}
.brand-mark::after{content:"";width:9px;height:9px;border-radius:50%;background:var(--gold);box-shadow:0 0 0 3px rgba(224,176,84,.28)}
.brand em{font-style:normal;font-size:11px;font-weight:600;color:var(--primary);background:var(--primary-50);border-radius:6px;padding:2px 6px;margin-left:6px;letter-spacing:.02em}
.main-nav{display:flex;align-items:center;gap:2px;margin:0 auto}
.nav-link{
  display:inline-flex;align-items:center;height:38px;padding:0 14px;border-radius:8px;
  font-size:15px;font-weight:500;color:var(--text);white-space:nowrap;
}
.nav-link:hover{background:var(--primary-50);color:var(--primary);text-decoration:none}
.nav-link.active{color:var(--primary);background:var(--primary-50);font-weight:600}
.mega-holder{position:relative}
.mega-trigger{
  display:inline-flex;align-items:center;gap:6px;height:38px;padding:0 14px;
  border:0;border-radius:8px;background:transparent;color:var(--text);font-size:15px;font-weight:500;
}
.mega-trigger::after{content:"";width:6px;height:6px;border-right:1.6px solid currentColor;border-bottom:1.6px solid currentColor;transform:rotate(45deg) translateY(-2px);transition:transform .18s ease}
.mega-trigger:hover{background:var(--primary-50);color:var(--primary)}
.mega-holder.is-open .mega-trigger{background:var(--primary-50);color:var(--primary)}
.mega-holder.is-open .mega-trigger::after{transform:rotate(-135deg) translateY(-3px)}
.mega-panel{
  position:absolute;top:calc(100% + 12px);right:0;width:880px;max-width:calc(100vw - 40px);
  background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--sh-3);
  padding:26px;display:grid;grid-template-columns:1fr 1fr 1.15fr;gap:22px;
  opacity:0;visibility:hidden;transform:translateY(6px);pointer-events:none;
  transition:opacity .18s ease,transform .18s ease,visibility .18s ease;
}
.mega-holder:hover .mega-panel,
.mega-holder:focus-within .mega-panel,
.mega-holder.is-open .mega-panel{opacity:1;visibility:visible;transform:translateY(0);pointer-events:auto}
.mega-col h4{font-size:12.5px;font-weight:600;color:var(--text-2);letter-spacing:.06em;margin-bottom:12px}
.mega-col ul li{margin-bottom:2px}
.mega-col ul a{display:block;padding:7px 10px;border-radius:8px;font-size:14.5px;color:var(--text)}
.mega-col ul a:hover{background:var(--primary-50);color:var(--primary);text-decoration:none}
.mega-card{
  display:block;padding:16px;border-radius:12px;background:var(--primary-50);
  border:1px solid #DED7FF;
}
.mega-card:hover{text-decoration:none;background:#E7E1FF}
.mega-card strong{display:block;font-size:15px;color:var(--primary-700);margin-bottom:6px}
.mega-card span{display:block;font-size:13px;line-height:1.7;color:var(--text-2)}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.btn-star{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  height:40px;padding:0 20px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:14.5px;font-weight:600;background:var(--primary);color:#fff;
  transition:background .18s ease,transform .18s ease,box-shadow .18s ease,color .18s ease,border-color .18s ease;
}
.btn-star:hover{background:var(--primary-700);color:#fff;text-decoration:none;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-star:active{transform:translateY(0)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  height:40px;padding:0 20px;border-radius:var(--r-btn);border:1px solid var(--primary);
  background:transparent;color:var(--primary);font-size:14.5px;font-weight:600;
  transition:background .18s ease,color .18s ease,transform .18s ease;
}
.btn-ghost:hover{background:var(--primary-50);color:var(--primary-700);text-decoration:none;transform:translateY(-1px)}
.btn-gold{
  display:inline-flex;align-items:center;justify-content:center;
  height:40px;padding:0 20px;border-radius:var(--r-btn);border:0;background:var(--gold);
  color:var(--ink);font-size:14.5px;font-weight:600;transition:filter .18s ease,transform .18s ease;
}
.btn-gold:hover{filter:brightness(1.06);transform:translateY(-1px);color:var(--ink);text-decoration:none}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:10px;background:#fff;
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:16px;height:1.6px;background:var(--ink);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(5.6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-5.6px) rotate(-45deg)}
.mobile-drawer{
  display:none;position:fixed;left:0;right:0;top:68px;bottom:0;background:#fff;z-index:999;
  padding:18px 20px 40px;overflow-y:auto;border-top:1px solid var(--line);
}
.mobile-drawer.is-open{display:block}
.mobile-drawer .nav-link{display:block;height:auto;padding:14px 12px;font-size:16px;border-radius:10px;min-height:48px}
.drawer-group{margin-top:18px;border-top:1px solid var(--line);padding-top:16px}
.drawer-group h4{font-size:12.5px;letter-spacing:.06em;color:var(--text-2);margin-bottom:8px;font-weight:600}
.drawer-group a{display:block;padding:12px;font-size:15px;color:var(--text);border-radius:10px;min-height:44px}
.drawer-group a:hover{background:var(--primary-50);color:var(--primary);text-decoration:none}

/* ============ 面包屑 ============ */
.crumb-bar{padding:26px 0 0}
.crumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13.5px;color:var(--text-2)}
.crumb a{color:var(--text-2)}
.crumb a:hover{color:var(--primary)}
.crumb i{font-style:normal;color:#C3BFD6}
.crumb .now{color:var(--text);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ 文章头部 ============ */
.article-head{max-width:820px;margin:0 auto;padding-top:22px}
.head-badges{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:16px}
.badge-cat{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:var(--r-badge);
  background:rgba(47,167,154,.12);color:var(--teal);font-size:12.5px;font-weight:600;
}
.badge-vip{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:var(--r-badge);
  background:var(--gold);color:var(--ink);font-size:12.5px;font-weight:600;
}
.article-head h1{font-size:clamp(26px,3.6vw,38px);line-height:1.35;letter-spacing:.01em;font-weight:700}
.head-meta{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px 22px;
  margin-top:20px;padding-top:18px;border-top:1px solid var(--line);
  font-size:13.5px;color:var(--text-2);
}
.head-meta b{font-weight:600;color:var(--text)}
.head-meta .dot{width:4px;height:4px;border-radius:50%;background:#CFCBE2}
.article-cover{
  max-width:1000px;margin:32px auto 0;border-radius:var(--r-card);overflow:hidden;
  background:rgba(91,71,216,.08);box-shadow:var(--sh-1);
}
.article-cover img{width:100%;aspect-ratio:21/9;object-fit:cover}

/* ============ 正文区 ============ */
.article-body-wrap{
  display:grid;grid-template-columns:1fr;gap:56px;
  max-width:1160px;margin:0 auto;padding:48px 0 0;
}
.article-main{min-width:0;max-width:780px;margin:0 auto;width:100%}
.prose{font-size:16.5px;line-height:1.9;color:var(--text)}
.prose p{margin:0 0 1.15em}
.prose h2{
  font-size:clamp(20px,2.4vw,24px);font-weight:700;line-height:1.45;color:var(--ink);
  margin:52px 0 16px;padding-top:4px;scroll-margin-top:96px;
}
.prose h2:first-child{margin-top:0}
.prose h3{font-size:19px;font-weight:600;line-height:1.5;color:var(--ink);margin:34px 0 12px;scroll-margin-top:96px}
.prose h4{font-size:16.5px;font-weight:600;color:var(--ink);margin:26px 0 10px}
.prose ul,.prose ol{margin:0 0 1.15em;padding-left:1.4em}
.prose ul{list-style:disc}
.prose ol{list-style:decimal}
.prose li{margin-bottom:.5em}
.prose li::marker{color:var(--primary)}
.prose blockquote{
  margin:26px 0;padding:16px 22px;background:var(--primary-50);
  border-left:3px solid var(--primary);border-radius:0 10px 10px 0;color:#3D3868;
}
.prose blockquote p:last-child{margin-bottom:0}
.prose img{border-radius:12px;margin:26px 0}
.prose a{color:var(--primary);text-decoration:underline;text-underline-offset:2px}
.prose a:hover{color:var(--primary-700)}
.prose table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px}
.prose th,.prose td{border:1px solid var(--line);padding:12px 14px;text-align:left;vertical-align:top}
.prose th{background:#FAF9FF;font-weight:600;color:var(--ink)}
.prose pre{
  background:var(--ink);color:#E8E6F7;padding:18px 20px;border-radius:12px;
  overflow-x:auto;font-size:13.5px;line-height:1.75;margin:24px 0;
}
.prose code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  background:#F1EFF9;border-radius:5px;padding:2px 6px;font-size:.9em;color:#43329F;
}
.prose pre code{background:none;padding:0;color:inherit}
.prose hr{border:0;border-top:1px solid var(--line);margin:34px 0}
.prose strong{font-weight:600;color:var(--ink)}

/* 空态 */
.empty-state{
  padding:56px 28px;border-radius:var(--r-card);background:#fff;border:1px dashed #D9D5EC;
  text-align:center;box-shadow:var(--sh-1);
}
.empty-state .glyph{
  width:56px;height:56px;margin:0 auto 18px;border-radius:16px;
  background:rgba(91,71,216,.1);position:relative;
}
.empty-state .glyph::before{content:"";position:absolute;inset:16px;border-radius:50%;background:var(--primary);opacity:.45}
.empty-state h2{font-size:19px;margin-bottom:10px}
.empty-state p{color:var(--text-2);font-size:14.5px;margin:0 0 20px}

/* TOC */
.article-aside{display:none}
.toc{
  position:sticky;top:96px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);padding:20px;box-shadow:var(--sh-1);
}
.toc h4{font-size:12.5px;letter-spacing:.06em;color:var(--text-2);font-weight:600;margin-bottom:12px}
.toc ul li{margin-bottom:2px}
.toc ul a{
  display:block;padding:8px 10px;border-radius:8px;font-size:14px;color:var(--text-2);
  border-left:2px solid transparent;line-height:1.55;
}
.toc ul a:hover{background:var(--primary-50);color:var(--primary);text-decoration:none;border-left-color:var(--primary)}

/* ============ 文末 ============ */
.article-foot{max-width:780px;margin:64px auto 0}
.tag-row{display:flex;align-items:center;flex-wrap:wrap;gap:10px;padding-bottom:28px;border-bottom:1px solid var(--line)}
.tag-row span.label{font-size:13px;color:var(--text-2);margin-right:2px}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 13px;border-radius:var(--r-badge);
  background:#fff;border:1px solid var(--line);font-size:13px;color:var(--text-2);
  transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.tag:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-50);text-decoration:none}

.pager{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:34px}
.pager-card{
  display:block;padding:22px;border-radius:var(--r-card);background:#fff;border:1px solid var(--line);
  box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.pager-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#DCD6F5;text-decoration:none}
.pager-card small{display:block;font-size:12.5px;color:var(--text-2);margin-bottom:8px;letter-spacing:.04em}
.pager-card strong{display:block;font-size:15.5px;color:var(--ink);line-height:1.6;font-weight:600}
.pager-card.next{text-align:right}

.relate{margin-top:72px}
.relate-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px}
.relate-head h2{font-size:22px;font-weight:700}
.relate-head a{font-size:14px}
.relate-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.news-card{
  display:flex;flex-direction:column;background:#fff;border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);border:1px solid var(--line);
  transition:transform .24s ease,box-shadow .24s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);text-decoration:none}
.news-thumb{position:relative;overflow:hidden;background:rgba(91,71,216,.08)}
.news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .24s ease-out}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-body h3{font-size:15.5px;font-weight:600;line-height:1.55;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-body p{font-size:13.5px;line-height:1.75;color:var(--text-2);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;gap:10px;margin-top:auto;font-size:12.5px;color:var(--text-2)}

.back-home{display:flex;justify-content:center;margin-top:44px}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:var(--text-inv);margin-top:96px;position:relative}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.28;
  background-image:radial-gradient(1.4px 1.4px at 12% 24%,rgba(255,255,255,.7) 50%,transparent 51%),
                   radial-gradient(1.2px 1.2px at 68% 12%,rgba(255,255,255,.6) 50%,transparent 51%),
                   radial-gradient(1.5px 1.5px at 86% 62%,rgba(255,255,255,.5) 50%,transparent 51%),
                   radial-gradient(1.2px 1.2px at 34% 78%,rgba(255,255,255,.45) 50%,transparent 51%);
}
.footer-inner{position:relative;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.brand-light{color:var(--text-inv)}
.brand-light:hover{color:#fff}
.brand-light .brand-mark{background:linear-gradient(140deg,#5B47D8 0%,#2A2450 100%);border:1px solid rgba(255,255,255,.12)}
.brand-light em{background:rgba(91,71,216,.24);color:#C9BFFF}
.footer-brand p{font-size:13.5px;line-height:1.85;color:rgba(244,242,255,.68);margin:16px 0 0;max-width:300px}
.footer-status{
  display:inline-flex;align-items:center;gap:8px;margin-top:18px;padding:8px 14px;border-radius:999px;
  border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.04);
  font-size:12.5px;color:rgba(244,242,255,.8);
}
.footer-status i{width:6px;height:6px;border-radius:50%;background:var(--teal);font-style:normal}
.footer-col h4{font-size:14px;font-weight:600;color:var(--text-inv);margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{font-size:14px;color:rgba(244,242,255,.72)}
.footer-col ul a:hover{color:#fff;text-decoration:none}
.footer-col p{font-size:13.5px;color:rgba(244,242,255,.72);margin:0 0 10px;line-height:1.8}
.footer-bottom{
  position:relative;margin-top:52px;padding:22px 0 28px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:12.5px;color:rgba(244,242,255,.55);
}
.footer-bottom a{color:rgba(244,242,255,.72)}
.footer-bottom a:hover{color:#fff}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .article-aside{display:none}
  .mega-panel{width:760px}
}
@media (min-width:1200px){
  .article-body-wrap{grid-template-columns:minmax(0,780px) 240px;justify-content:center;gap:48px}
  .article-main{margin:0}
  .article-aside{display:block}
}
@media (max-width:991px){
  .main-nav{display:none}
  .nav-toggle{display:inline-flex}
  .header-actions .btn-star{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px 24px}
  .footer-brand{grid-column:1 / -1}
  .relate-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .crumb-bar{padding-top:18px}
  .article-head{padding-top:14px}
  .head-meta{gap:6px 14px}
  .article-body-wrap{padding-top:34px;gap:40px}
  .prose{font-size:16px}
  .prose h2{margin-top:38px}
  .pager{grid-template-columns:1fr}
  .pager-card.next{text-align:left}
  .relate-grid{grid-template-columns:1fr}
  .site-footer{margin-top:56px}
  .footer-inner{padding-top:44px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}
@media (max-width:575px){
  body{font-size:15px}
  .brand{font-size:17px}
  .article-head h1{font-size:23px}
  .btn-star,.btn-ghost,.btn-gold{width:100%}
  .empty-state{padding:40px 18px}
}

/* roulang page: category1 */
:root{
  --ink:#16142E;
  --primary:#5B47D8;
  --primary-700:#43329F;
  --primary-50:#EFECFF;
  --gold:#E0B054;
  --teal:#2FA79A;
  --bg:#F7F6FB;
  --surface:#FFFFFF;
  --line:#E9E7F3;
  --text:#2A2740;
  --text-2:#6B6885;
  --text-inv:#F4F2FF;
  --r-card:14px;
  --r-btn:10px;
  --r-badge:6px;
  --sh-1:0 2px 8px rgba(22,20,46,.06);
  --sh-2:0 10px 26px rgba(22,20,46,.12);
  --sh-3:0 16px 44px rgba(22,20,46,.16);
  --section-gap:96px;
  --bs-primary:#5B47D8;
  --bs-body-color:#2A2740;
  --bs-body-bg:#F7F6FB;
  --bs-border-radius:14px;
  --bs-link-color:#5B47D8;
  --bs-link-hover-color:#43329F;
  --bs-font-sans-serif:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,"Source Han Sans SC",sans-serif;
}
*,*::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","Hiragino Sans GB","Microsoft YaHei",system-ui,"Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--text);text-decoration:none;transition:color .2s ease,background-color .2s ease,opacity .2s ease}
a:hover{color:var(--primary)}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul{list-style:none;padding:0}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
.section{padding:var(--section-gap) 0}
.section-tight{padding:64px 0}
.sec-head{margin-bottom:32px;display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.sec-head h2{font-size:26px;font-weight:700;line-height:1.4;letter-spacing:.01em;margin:0}
.sec-head p{color:var(--text-2);font-size:15px;margin-top:10px;max-width:62ch}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.16em;color:var(--primary);font-weight:600;text-transform:uppercase}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--primary);opacity:.6}
.muted{color:var(--text-2)}

/* ---------- buttons ---------- */
.btn-x{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;cursor:pointer;font-family:inherit;
  font-size:15px;font-weight:600;padding:12px 22px;border-radius:var(--r-btn);transition:transform .2s ease,background-color .2s ease,color .2s ease,box-shadow .2s ease;min-height:46px}
.btn-primary-x{background:var(--primary);color:#fff;box-shadow:var(--sh-1)}
.btn-primary-x:hover{background:var(--primary-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary-x:active{transform:translateY(0)}
.btn-ghost-x{background:transparent;color:var(--primary);border:1px solid var(--primary)}
.btn-ghost-x:hover{background:var(--primary-50);color:var(--primary-700)}
.btn-gold-x{background:var(--gold);color:var(--ink)}
.btn-gold-x:hover{background:#EFC471;color:var(--ink);transform:translateY(-1px)}
.btn-sm-x{padding:9px 16px;font-size:14px;min-height:40px;border-radius:var(--r-btn)}
.btn-block-x{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary)}
.link-arrow:hover{color:var(--primary-700);text-decoration:underline;text-underline-offset:4px}

/* ---------- header / nav ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(247,246,251,.92);border-bottom:1px solid var(--line);transition:box-shadow .25s ease,background-color .25s ease}
.site-header.is-stuck{box-shadow:var(--sh-1);background:#fff}
.header-inner{display:flex;align-items:center;gap:24px;min-height:68px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px;color:var(--ink);flex:0 0 auto}
.brand:hover{color:var(--ink)}
.brand-mark{width:32px;height:32px;border-radius:9px;background:linear-gradient(145deg,var(--primary) 0%,var(--ink) 100%);position:relative;flex:0 0 auto;box-shadow:var(--sh-1)}
.brand-mark::after{content:"";position:absolute;inset:0;border-radius:9px;background:
  radial-gradient(circle at 30% 28%,rgba(255,255,255,.95) 1.6px,transparent 1.8px),
  radial-gradient(circle at 68% 34%,rgba(255,255,255,.7) 1.2px,transparent 1.5px),
  radial-gradient(circle at 44% 72%,rgba(224,176,84,.95) 1.6px,transparent 1.8px)}
.brand-text{letter-spacing:.01em;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:4px;flex:1 1 auto;justify-content:center}
.nav-link{position:relative;padding:10px 14px;font-size:15px;font-weight:500;color:var(--text);border-radius:var(--r-btn);white-space:nowrap}
.nav-link:hover{background:var(--primary-50);color:var(--primary-700)}
.nav-link.active{color:var(--primary-700);font-weight:600}
.nav-link.active::after{content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;background:var(--primary)}
.mega-holder{position:relative}
.mega-trigger{background:transparent;border:1px solid transparent;font-family:inherit;font-size:15px;font-weight:500;color:var(--text);padding:10px 14px;border-radius:var(--r-btn);cursor:pointer;display:inline-flex;align-items:center;gap:6px}
.mega-trigger::after{content:"\f107";font-family:"Font Awesome 6 Free";font-weight:900;font-size:12px;transition:transform .2s ease}
.mega-trigger:hover{background:var(--primary-50);color:var(--primary-700)}
.mega-holder:hover .mega-trigger::after,.mega-holder:focus-within .mega-trigger::after{transform:rotate(180deg)}
.mega-panel{position:absolute;top:calc(100% + 12px);right:-20px;width:900px;max-width:88vw;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--sh-3);
  padding:26px;display:grid;grid-template-columns:1fr 1fr 1.25fr;gap:26px;opacity:0;visibility:hidden;transform:translateY(6px);transition:opacity .18s ease,transform .18s ease,visibility .18s ease}
.mega-holder:hover .mega-panel,.mega-holder:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col h4{font-size:14px;font-weight:600;color:var(--ink);margin-bottom:12px;letter-spacing:.04em}
.mega-col ul li a{display:block;padding:8px 10px;border-radius:8px;font-size:14px;color:var(--text-2)}
.mega-col ul li a:hover{background:var(--primary-50);color:var(--primary-700)}
.mega-card{display:block;background:var(--ink);color:var(--text-inv);border-radius:14px;padding:18px;border:1px solid rgba(255,255,255,.08)}
.mega-card strong{display:block;font-size:15px;margin-bottom:6px;color:#fff}
.mega-card span{font-size:13px;line-height:1.7;color:rgba(244,242,255,.72)}
.mega-card:hover{color:var(--text-inv);background:#221F45}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{display:none;width:44px;height:44px;border-radius:var(--r-btn);border:1px solid var(--line);background:#fff;color:var(--ink);font-size:18px;cursor:pointer;align-items:center;justify-content:center}
@media (max-width:991px){
  .main-nav{position:fixed;top:68px;left:0;right:0;bottom:0;background:#fff;flex-direction:column;align-items:stretch;justify-content:flex-start;gap:2px;padding:18px 20px 40px;overflow-y:auto;transform:translateX(100%);transition:transform .28s ease;border-top:1px solid var(--line)}
  body.nav-open .main-nav{transform:translateX(0)}
  .nav-link{padding:14px 12px;font-size:16px;border-radius:12px}
  .nav-link.active::after{display:none}
  .nav-link.active{background:var(--primary-50)}
  .mega-holder{width:100%}
  .mega-trigger{width:100%;justify-content:space-between;padding:14px 12px;font-size:16px}
  .mega-panel{position:static;width:100%;max-width:none;opacity:1;visibility:visible;transform:none;box-shadow:none;border:none;background:transparent;padding:0 0 8px;grid-template-columns:1fr;gap:14px}
  .mega-holder:hover .mega-panel,.mega-holder:focus-within .mega-panel{transform:none}
  .nav-toggle{display:inline-flex}
  .header-actions .btn-x{display:none}
}

/* ---------- page banner ---------- */
.page-banner{position:relative;background-color:var(--ink);color:var(--text-inv);overflow:hidden;padding:72px 0 64px}
.page-banner::before{content:"";position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center;opacity:.32}
.page-banner::after{content:"";position:absolute;inset:0;background:
  radial-gradient(circle at 18% 24%,rgba(255,255,255,.35) 1px,transparent 1.4px),
  radial-gradient(circle at 62% 18%,rgba(255,255,255,.22) 1px,transparent 1.4px),
  radial-gradient(circle at 84% 62%,rgba(224,176,84,.35) 1.2px,transparent 1.6px),
  linear-gradient(180deg,rgba(22,20,46,.72) 0%,rgba(22,20,46,.86) 100%)}
.page-banner .container{position:relative;z-index:2}
.crumb{display:flex;align-items:center;gap:10px;font-size:13px;color:rgba(244,242,255,.68);margin-bottom:22px;flex-wrap:wrap}
.crumb a{color:rgba(244,242,255,.72)}
.crumb a:hover{color:#fff}
.crumb span.sep{opacity:.5}
.page-banner h1{font-size:36px;font-weight:700;line-height:1.35;letter-spacing:.01em;color:#fff;max-width:20ch}
.banner-lead{margin-top:18px;font-size:16.5px;line-height:1.9;color:rgba(244,242,255,.78);max-width:64ch}
.quick-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.qt{display:inline-flex;align-items:center;gap:7px;font-size:13.5px;padding:8px 14px;border-radius:999px;border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.06);color:rgba(244,242,255,.86)}
.qt i{color:var(--gold);font-size:12px}
.banner-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;margin-top:40px;border:1px solid rgba(255,255,255,.1);border-radius:14px;overflow:hidden;background:rgba(255,255,255,.04)}
.banner-stats div{padding:20px 22px;background:rgba(22,20,46,.35)}
.banner-stats strong{display:block;font-size:24px;font-weight:700;color:#fff;line-height:1.3}
.banner-stats span{font-size:13px;color:rgba(244,242,255,.66)}

/* ---------- mini compare ---------- */
.compare-wrap{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden}
.mini-compare{display:grid;grid-template-columns:1.5fr repeat(3,1fr);min-width:760px}
.mc-cell{padding:18px 22px;font-size:15px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:8px}
.mc-head .mc-cell{border-bottom:1px solid var(--line);font-weight:600;padding-top:24px;padding-bottom:22px}
.mc-head .mc-label{color:var(--text-2);font-weight:500;font-size:14px}
.mc-tier{flex-direction:column;align-items:flex-start;gap:2px}
.mc-tier b{font-size:16px;color:var(--ink)}
.mc-tier em{font-style:normal;font-size:13px;color:var(--text-2);font-variant-numeric:tabular-nums}
.mc-tier.is-featured{background:var(--primary-50);box-shadow:inset 0 3px 0 var(--primary);position:relative}
.mc-tier.is-featured b{color:var(--primary-700)}
.tag-reco{position:absolute;top:8px;right:12px;background:var(--gold);color:var(--ink);font-size:11.5px;font-weight:600;padding:2px 8px;border-radius:var(--r-badge)}
.mc-group{padding:12px 22px;font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--teal);background:rgba(47,167,154,.07);border-bottom:1px solid var(--line)}
.mc-label{color:var(--text);font-weight:500}
.yes{width:20px;height:20px;border-radius:50%;background:var(--primary);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:11px;flex:0 0 auto}
.no{color:#C6C3D6;font-size:17px;line-height:1}
.mini-compare > .mc-cell:nth-child(n+1):nth-child(-n+4){border-top:none}
.compare-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.compare-foot{display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;margin-top:22px;padding:18px 22px;background:var(--surface);border:1px dashed var(--line);border-radius:var(--r-card)}
.compare-foot p{font-size:14px;color:var(--text-2);max-width:64ch}

/* ---------- content cards ---------- */
.big-card{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:transform .24s ease,box-shadow .24s ease;height:100%}
.big-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.big-card + .big-card{margin-top:24px}
.big-media{position:relative;overflow:hidden;aspect-ratio:4/3;background:rgba(91,71,216,.08)}
.big-media img{width:100%;height:100%;object-fit:cover;transition:transform .24s ease-out}
.big-card:hover .big-media img{transform:scale(1.03)}
.badge-teal{position:absolute;top:14px;left:14px;background:rgba(47,167,154,.14);color:#1F7C72;font-size:12.5px;font-weight:600;padding:5px 10px;border-radius:var(--r-badge)}
.badge-gold{position:absolute;top:14px;left:14px;background:var(--gold);color:var(--ink);font-size:12.5px;font-weight:600;padding:5px 10px;border-radius:var(--r-badge)}
.big-body{padding:28px 30px;display:flex;flex-direction:column;gap:12px;justify-content:center}
.big-body h3{font-size:20px;font-weight:600;line-height:1.5}
.big-body p{font-size:15px;color:var(--text-2);line-height:1.85}
.meta-line{display:flex;flex-wrap:wrap;gap:14px;font-size:13px;color:var(--text-2);font-variant-numeric:tabular-nums}
.meta-line i{color:var(--primary);margin-right:5px;font-size:12px}
.side-panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:24px;height:100%}
.side-panel h3{font-size:17px;font-weight:600;margin-bottom:6px}
.side-panel .side-sub{font-size:13.5px;color:var(--text-2);margin-bottom:18px}
.slim-item{display:flex;gap:14px;padding:14px 0;border-top:1px solid var(--line)}
.slim-item:first-of-type{border-top:none}
.slim-thumb{width:64px;height:64px;border-radius:10px;overflow:hidden;flex:0 0 auto;background:rgba(91,71,216,.08)}
.slim-thumb img{width:100%;height:100%;object-fit:cover}
.slim-body strong{display:block;font-size:14.5px;font-weight:600;line-height:1.6;color:var(--text)}
.slim-item:hover .slim-body strong{color:var(--primary)}
.slim-body span{display:block;font-size:13px;color:var(--text-2);margin-top:4px}
.slim-foot{margin-top:18px;padding-top:18px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13.5px;color:var(--text-2)}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.step{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:26px 24px;position:relative;box-shadow:var(--sh-1)}
.step-num{width:34px;height:34px;border-radius:50%;border:1.5px solid var(--gold);color:var(--primary-700);display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;margin-bottom:14px}
.step h3{font-size:16px;font-weight:600;margin-bottom:8px}
.step p{font-size:14px;color:var(--text-2);line-height:1.8}

/* ---------- proof ---------- */
.proof{background:var(--ink);color:var(--text-inv);border-radius:18px;padding:48px;position:relative;overflow:hidden;border:1px solid rgba(255,255,255,.08)}
.proof::after{content:"";position:absolute;inset:0;background:
  radial-gradient(circle at 82% 22%,rgba(224,176,84,.28) 1.4px,transparent 1.8px),
  radial-gradient(circle at 30% 70%,rgba(255,255,255,.2) 1px,transparent 1.4px),
  radial-gradient(circle at 60% 40%,rgba(255,255,255,.14) 1px,transparent 1.4px)}
.proof-grid{position:relative;z-index:2;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:28px}
.proof-grid div strong{display:block;font-size:30px;font-weight:700;color:#fff;line-height:1.2;font-variant-numeric:tabular-nums}
.proof-grid div span{font-size:13.5px;color:rgba(244,242,255,.7);display:block;margin-top:6px}
.proof-quote{margin-top:34px;padding-top:26px;border-top:1px solid rgba(255,255,255,.1);position:relative;z-index:2}
.proof-quote p{font-size:15.5px;line-height:1.9;color:rgba(244,242,255,.86);max-width:70ch}
.proof-quote span{display:inline-block;margin-top:12px;font-size:13.5px;color:var(--gold)}

/* ---------- faq ---------- */
.faq-list{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:8px 26px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:none}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:flex-start;gap:14px;padding:22px 0;font-size:16.5px;font-weight:600;color:var(--text);transition:color .2s ease}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{content:"+";flex:0 0 auto;width:22px;font-size:20px;line-height:1.4;color:var(--primary);font-weight:400;transition:transform .2s ease}
.faq-item[open] summary{color:var(--primary-700)}
.faq-item[open] summary::before{content:"×";transform:rotate(0)}
.faq-item summary:hover{color:var(--primary)}
.faq-answer{padding:0 0 24px 36px;font-size:15.5px;line-height:1.85;color:var(--text-2)}
.faq-answer p + p{margin-top:12px}

/* ---------- cta ---------- */
.cta-band{background:linear-gradient(160deg,#1C1940 0%,var(--ink) 100%);border-radius:18px;padding:56px;border:1px solid rgba(255,255,255,.08);position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;inset:0;background:
  radial-gradient(circle at 12% 30%,rgba(255,255,255,.18) 1px,transparent 1.4px),
  radial-gradient(circle at 78% 74%,rgba(224,176,84,.3) 1.4px,transparent 1.8px),
  radial-gradient(circle at 46% 62%,rgba(255,255,255,.12) 1px,transparent 1.4px)}
.cta-grid{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:40px;align-items:center}
.cta-grid h2{font-size:27px;font-weight:700;color:#fff;line-height:1.45;letter-spacing:.01em}
.cta-assure{display:flex;flex-wrap:wrap;gap:12px 26px;margin-top:22px}
.cta-assure li{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(244,242,255,.78)}
.cta-assure i{color:var(--teal);font-size:13px}
.cta-right{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:16px;padding:26px}
.price-anchor{display:flex;align-items:baseline;gap:8px;color:#fff}
.price-anchor b{font-size:34px;font-weight:700;font-variant-numeric:tabular-nums;line-height:1.1}
.price-anchor span{font-size:14px;color:rgba(244,242,255,.7)}
.cta-right p{font-size:13.5px;color:rgba(244,242,255,.66);margin:10px 0 18px}
.cta-right .btn-x{width:100%}
.cta-right .sub-link{display:block;text-align:center;margin-top:12px;font-size:13.5px;color:rgba(244,242,255,.72)}
.cta-right .sub-link:hover{color:#fff}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:var(--text-inv);margin-top:var(--section-gap);padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:18px;margin-bottom:16px}
.footer-grid p{font-size:14px;line-height:1.85;color:rgba(244,242,255,.66);max-width:34ch}
.footer-grid h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.04em}
.footer-grid ul li{margin-bottom:10px}
.footer-grid ul li a{font-size:14px;color:rgba(244,242,255,.72)}
.footer-grid ul li a:hover{color:#fff}
.footer-seal{display:inline-flex;align-items:center;gap:8px;margin-top:18px;padding:8px 14px;border:1px solid rgba(224,176,84,.4);border-radius:var(--r-badge);font-size:12.5px;color:var(--gold);font-family:Georgia,"Songti SC",serif;letter-spacing:.08em}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:22px 0 30px;display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between;align-items:center}
.footer-bottom p,.footer-bottom span{font-size:13px;color:rgba(244,242,255,.56)}
.footer-bottom a{font-size:13px;color:rgba(244,242,255,.56)}
.footer-bottom a:hover{color:#fff}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .container{max-width:960px}
}
@media (max-width:991px){
  :root{--section-gap:72px}
  .container{max-width:100%}
  .page-banner h1{font-size:30px;max-width:none}
  .banner-stats{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .proof{padding:36px}
  .proof-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-band{padding:40px}
  .cta-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .big-card{grid-template-columns:1fr}
}
@media (max-width:767px){
  :root{--section-gap:56px}
  body{font-size:16px}
  .container{padding-left:16px;padding-right:16px}
  .page-banner{padding:52px 0 48px}
  .page-banner h1{font-size:26px}
  .banner-lead{font-size:15.5px}
  .sec-head h2{font-size:22px}
  .big-body{padding:22px}
  .faq-list{padding:4px 18px}
  .faq-item summary{font-size:15.5px;padding:18px 0}
  .faq-answer{padding-left:0;font-size:15px}
  .cta-band{border-radius:14px;padding:30px 22px}
  .cta-grid h2{font-size:22px}
  .proof{padding:28px 22px;border-radius:14px}
  .steps{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
}
@media (max-width:575px){
  .btn-x{width:100%}
  .header-actions .btn-x{width:auto}
  .page-banner h1{font-size:23px;line-height:1.42}
  .compare-foot{flex-direction:column;align-items:flex-start}
}

/* roulang page: category2 */
/* ================= 设计变量 ================= */
:root{
  --ink:#16142E;
  --primary:#5B47D8;
  --primary-700:#43329F;
  --primary-50:#EFECFF;
  --gold:#E0B054;
  --teal:#2FA79A;
  --bg:#F7F6FB;
  --surface:#FFFFFF;
  --line:#E9E7F3;
  --text:#2A2740;
  --text-2:#6B6885;
  --text-inv:#F4F2FF;
  --r-card:14px;
  --r-btn:10px;
  --r-badge:6px;
  --sh-1:0 2px 8px rgba(22,20,46,.06);
  --sh-2:0 10px 26px rgba(22,20,46,.12);
  --sh-3:0 16px 44px rgba(22,20,46,.16);
  --sec:96px;
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,"Source Han Sans SC","Noto Sans SC",sans-serif;

  --bs-primary:#5B47D8;
  --bs-primary-rgb:91,71,216;
  --bs-body-color:#2A2740;
  --bs-body-bg:#F7F6FB;
  --bs-link-color:#43329F;
  --bs-link-hover-color:#5B47D8;
  --bs-border-radius:14px;
  --bs-font-sans-serif:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --bs-body-font-size:16px;
}

/* ================= 基础层 ================= */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--primary-700);text-decoration:none;transition:color .2s ease,text-decoration-color .2s ease}
a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:2px}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text);letter-spacing:.01em}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ================= 按钮 ================= */
.btn-star,.btn-ghost,.btn-gold,.btn-quiet{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:0 22px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  line-height:1;
  cursor:pointer;
  border:1px solid transparent;
  transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  text-decoration:none;
}
.btn-star{background:var(--primary);color:#fff;box-shadow:var(--sh-1)}
.btn-star:hover{background:var(--primary-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);text-decoration:none}
.btn-star:active{transform:translateY(0);background:#3A2B8E}
.btn-ghost{background:transparent;color:var(--primary-700);border-color:var(--primary)}
.btn-ghost:hover{background:var(--primary-50);color:var(--primary-700);text-decoration:none}
.btn-ghost:active{background:#E3DEFF}
.btn-gold{background:var(--gold);color:var(--ink)}
.btn-gold:hover{background:#CFA046;color:var(--ink);transform:translateY(-1px);text-decoration:none}
.btn-quiet{background:transparent;color:var(--primary-700);padding:0;min-height:auto;font-weight:600}
.btn-quiet:hover{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.btn-sm-star{min-height:40px;padding:0 18px;font-size:14px;border-radius:9px}

.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--primary-700);
}
.link-arrow::after{content:"→";transition:transform .2s ease}
.link-arrow:hover{color:var(--primary);text-decoration:none}
.link-arrow:hover::after{transform:translateX(3px)}

/* ================= 顶部导航 ================= */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(255,255,255,.94);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.scrolled{box-shadow:var(--sh-1)}
.header-inner{
  display:flex;
  align-items:center;
  gap:18px;
  height:68px;
  transition:height .25s ease;
}
.site-header.scrolled .header-inner{height:60px}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:none;
  color:var(--ink);
  font-size:19px;
  font-weight:700;
  letter-spacing:.01em;
}
.brand:hover{color:var(--primary-700);text-decoration:none}
.brand-mark{
  position:relative;
  width:32px;
  height:32px;
  border-radius:9px;
  background:linear-gradient(135deg,var(--primary),var(--primary-700));
  flex:none;
  overflow:hidden;
}
.brand-mark::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(circle at 30% 32%, rgba(255,255,255,.95) 0 1.6px, transparent 2.2px),
    radial-gradient(circle at 68% 26%, rgba(255,255,255,.6) 0 1.2px, transparent 1.8px),
    radial-gradient(circle at 58% 70%, rgba(224,176,84,.95) 0 1.8px, transparent 2.4px);
}
.main-nav{
  display:flex;
  align-items:center;
  gap:2px;
  flex:1;
  justify-content:center;
}
.nav-link{
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 14px;
  border-radius:9px;
  font-size:15px;
  font-weight:600;
  color:var(--text);
  white-space:nowrap;
}
.nav-link:hover{background:var(--primary-50);color:var(--primary-700);text-decoration:none}
.nav-link.active{color:var(--primary-700);background:var(--primary-50)}
.header-actions{display:flex;align-items:center;gap:12px;flex:none}

/* Mega 面板 */
.mega-holder{position:relative}
.mega-trigger{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:40px;
  padding:0 14px;
  border:0;
  background:transparent;
  border-radius:9px;
  font-size:15px;
  font-weight:600;
  color:var(--text);
  cursor:pointer;
}
.mega-trigger::after{
  content:"";
  width:7px;height:7px;
  border-right:1.6px solid currentColor;
  border-bottom:1.6px solid currentColor;
  transform:rotate(45deg) translateY(-2px);
  transition:transform .2s ease;
}
.mega-trigger:hover{background:var(--primary-50);color:var(--primary-700)}
.mega-holder.mega-open .mega-trigger::after{transform:rotate(-135deg) translateY(-2px)}
.mega-panel{
  position:absolute;
  top:calc(100% + 16px);
  right:-60px;
  width:880px;
  display:grid;
  grid-template-columns:1fr 1fr 1.25fr;
  gap:26px;
  padding:26px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:16px;
  box-shadow:var(--sh-3);
  opacity:0;
  visibility:hidden;
  transform:translateY(6px);
  transition:opacity .18s ease,transform .18s ease,visibility .18s ease;
}
.mega-holder:hover .mega-panel,
.mega-holder:focus-within .mega-panel,
.mega-holder.mega-open .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-col h4{
  font-size:13px;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--text-2);
  margin-bottom:12px;
}
.mega-col ul li{margin-bottom:2px}
.mega-col ul a{
  display:block;
  padding:8px 10px;
  border-radius:8px;
  font-size:14.5px;
  color:var(--text);
}
.mega-col ul a:hover{background:var(--primary-50);color:var(--primary-700);text-decoration:none}
.mega-card{
  display:block;
  padding:16px 18px;
  border-radius:12px;
  background:var(--primary-50);
  border:1px solid #DDD6FF;
  color:var(--text);
}
.mega-card strong{display:block;font-size:15px;margin-bottom:6px;color:var(--primary-700)}
.mega-card span{display:block;font-size:13px;line-height:1.7;color:var(--text-2)}
.mega-card:hover{background:#E6E1FF;text-decoration:none}

/* 移动端汉堡 */
.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:44px;
  height:44px;
  padding:0 10px;
  border:1px solid var(--line);
  border-radius:10px;
  background:#fff;
  cursor:pointer;
}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--ink);transition:transform .2s ease,opacity .2s 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)}

/* ================= 页头 ================= */
.cat-hero{
  position:relative;
  background:var(--ink);
  color:var(--text-inv);
  overflow:hidden;
  padding:64px 0 72px;
}
.cat-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  opacity:.42;
}
.cat-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(circle at 22% 36%, rgba(255,255,255,.22) 0 1.4px, transparent 2.2px) 0 0/140px 140px,
    radial-gradient(circle at 74% 62%, rgba(224,176,84,.32) 0 1.6px, transparent 2.4px) 0 0/190px 190px,
    linear-gradient(180deg, rgba(22,20,46,.58), rgba(22,20,46,.88));
}
.cat-hero .container{position:relative;z-index:2}
.breadcrumb-line{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13.5px;
  color:rgba(244,242,255,.72);
  margin-bottom:22px;
}
.breadcrumb-line a{color:rgba(244,242,255,.82)}
.breadcrumb-line a:hover{color:#fff}
.breadcrumb-line span{opacity:.5}
.breadcrumb-line em{font-style:normal;color:#fff;font-weight:600}
.cat-hero h1{
  color:#fff;
  font-size:38px;
  line-height:1.35;
  max-width:820px;
  margin-bottom:16px;
}
.cat-hero .eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 12px;
  border-radius:var(--r-badge);
  background:rgba(224,176,84,.16);
  border:1px solid rgba(224,176,84,.4);
  color:var(--gold);
  font-size:13px;
  font-weight:600;
  letter-spacing:.06em;
  margin-bottom:18px;
}
.cat-hero .lead{
  max-width:720px;
  font-size:16.5px;
  line-height:1.9;
  color:rgba(244,242,255,.82);
  margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:44px}
.cat-hero .btn-ghost{color:#fff;border-color:rgba(244,242,255,.55)}
.cat-hero .btn-ghost:hover{background:rgba(244,242,255,.12);color:#fff}

/* 横向四段阶梯 */
.ladder{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:14px;
  align-items:end;
}
.ladder-step{
  position:relative;
  padding:20px 20px 18px;
  border-radius:var(--r-card);
  background:linear-gradient(180deg, rgba(255,255,255,.1), rgba(255,255,255,.04));
  border:1px solid rgba(255,255,255,.14);
  color:var(--text-inv);
}
.ladder-step .step-no{
  display:block;
  font-size:12px;
  font-weight:700;
  letter-spacing:.14em;
  color:rgba(244,242,255,.55);
  margin-bottom:10px;
  font-variant-numeric:tabular-nums;
}
.ladder-step h3{font-size:17px;color:#fff;margin-bottom:6px}
.ladder-step p{font-size:13px;line-height:1.7;color:rgba(244,242,255,.7);margin:0 0 12px}
.ladder-step .step-price{
  display:block;
  font-size:14px;
  font-weight:700;
  color:var(--gold);
  font-variant-numeric:tabular-nums;
}
.ladder-step.s1{min-height:118px}
.ladder-step.s2{min-height:146px}
.ladder-step.s3{min-height:174px;border-color:rgba(224,176,84,.5);background:linear-gradient(180deg, rgba(224,176,84,.16), rgba(255,255,255,.05))}
.ladder-step.s3 .step-no{color:var(--gold)}
.ladder-step.s4{min-height:202px}

/* ================= 通用板块 ================= */
.section{padding:var(--sec) 0}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:42px}
.section-head h2{
  font-size:27px;
  line-height:1.4;
  margin-bottom:14px;
}
.section-head p{color:var(--text-2);font-size:16px;margin:0}
.section-head .kicker{
  display:inline-block;
  font-size:13px;
  font-weight:700;
  letter-spacing:.1em;
  color:var(--teal);
  margin-bottom:12px;
}

/* ================= 阶梯轴列表 ================= */
.tier-axis{position:relative;padding-left:6px}
.tier-axis::before{
  content:"";
  position:absolute;
  left:47px;
  top:22px;
  bottom:22px;
  width:2px;
  background:linear-gradient(180deg,var(--primary-50),#D9D2FF 40%,var(--gold));
  border-radius:2px;
}
.tier-item{
  position:relative;
  display:grid;
  grid-template-columns:96px 1fr;
  gap:28px;
  padding:0 0 34px;
}
.tier-item:last-child{padding-bottom:0}
.tier-badge{
  position:relative;
  z-index:2;
  width:84px;
  height:84px;
  border-radius:50%;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:2px;
  background:var(--surface);
  border:1.5px solid var(--gold);
  color:var(--primary-700);
  box-shadow:var(--sh-1);
}
.tier-badge strong{font-size:15px;line-height:1.2}
.tier-badge span{font-size:11px;letter-spacing:.06em;color:var(--text-2);font-variant-numeric:tabular-nums}
.tier-badge.is-core{border-color:var(--primary);background:var(--primary-50)}
.tier-badge.is-top{border-color:var(--gold);background:#FFF9EC}
.tier-body{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px 28px;
  box-shadow:var(--sh-1);
  transition:box-shadow .24s ease,transform .24s ease,border-color .24s ease;
}
.tier-body:hover{box-shadow:var(--sh-2);transform:translateY(-3px);border-color:#DAD3FB}
.tier-top{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  justify-content:space-between;
  gap:12px;
  margin-bottom:12px;
}
.tier-top h3{font-size:20px}
.tier-price{
  font-size:17px;
  font-weight:700;
  color:var(--primary-700);
  font-variant-numeric:tabular-nums;
}
.tier-price small{font-size:13px;font-weight:500;color:var(--text-2);margin-left:4px}
.tier-body > p{color:var(--text-2);font-size:15.5px;margin-bottom:16px}
.tier-points{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:8px 24px;
  margin-bottom:20px;
}
.tier-points li{
  position:relative;
  padding-left:18px;
  font-size:14.5px;
  color:var(--text);
  line-height:1.8;
}
.tier-points li::before{
  content:"";
  position:absolute;
  left:2px;
  top:11px;
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--teal);
}
.tier-foot{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:18px;
  padding-top:18px;
  border-top:1px solid var(--line);
}
.tier-tag{
  display:inline-block;
  padding:3px 10px;
  border-radius:var(--r-badge);
  font-size:12px;
  font-weight:600;
  background:rgba(47,167,154,.12);
  color:var(--teal);
}
.tier-tag.gold{background:rgba(224,176,84,.18);color:#8B6415}

/* ================= 图文速览 ================= */
.overview{
  display:grid;
  grid-template-columns:1.15fr 1fr;
  gap:48px;
  align-items:center;
}
.overview-media{
  position:relative;
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-2);
  aspect-ratio:16/10;
  background:rgba(91,71,216,.08);
}
.overview-media img{width:100%;height:100%;object-fit:cover}
.overview-media .media-note{
  position:absolute;
  left:16px;
  bottom:16px;
  padding:7px 13px;
  border-radius:var(--r-badge);
  background:rgba(22,20,46,.82);
  color:var(--text-inv);
  font-size:12.5px;
  font-weight:600;
}
.overview-list li{
  display:grid;
  grid-template-columns:auto 1fr;
  gap:16px;
  padding:18px 0;
  border-bottom:1px solid var(--line);
}
.overview-list li:last-child{border-bottom:0}
.overview-list .idx{
  width:34px;
  height:34px;
  border-radius:10px;
  display:grid;
  place-items:center;
  background:var(--primary-50);
  color:var(--primary-700);
  font-size:13px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
}
.overview-list h3{font-size:16.5px;margin-bottom:6px}
.overview-list p{font-size:14.5px;color:var(--text-2);margin:0}

/* ================= 数据卡 ================= */
.stat-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.stat-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px 24px;
  box-shadow:var(--sh-1);
  transition:box-shadow .24s ease,transform .24s ease;
}
.stat-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px)}
.stat-value{
  font-size:32px;
  font-weight:700;
  color:var(--primary-700);
  line-height:1.2;
  font-variant-numeric:tabular-nums;
}
.stat-value small{font-size:15px;font-weight:600;color:var(--text-2);margin-left:4px}
.stat-label{
  display:block;
  margin-top:8px;
  font-size:15px;
  font-weight:600;
  color:var(--text);
}
.stat-card p{margin:8px 0 0;font-size:13.5px;line-height:1.75;color:var(--text-2)}

/* ================= 升级流程 ================= */
.flow{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.flow-step{
  position:relative;
  padding:28px 26px 26px;
  border-radius:var(--r-card);
  background:var(--surface);
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
}
.flow-step .flow-no{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;
  height:38px;
  border-radius:11px;
  background:var(--ink);
  color:var(--gold);
  font-size:14px;
  font-weight:700;
  margin-bottom:16px;
  font-variant-numeric:tabular-nums;
}
.flow-step h3{font-size:17.5px;margin-bottom:10px}
.flow-step p{font-size:14.5px;color:var(--text-2);margin:0}
.flow-note{
  margin-top:26px;
  padding:16px 20px;
  border-left:3px solid var(--teal);
  background:#fff;
  border-radius:0 10px 10px 0;
  font-size:14.5px;
  color:var(--text-2);
}

/* ================= 互链卡 ================= */
.cross-links{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
}
.cross-card{
  display:grid;
  grid-template-columns:150px 1fr;
  gap:22px;
  align-items:center;
  padding:20px;
  border-radius:var(--r-card);
  background:var(--surface);
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
  color:var(--text);
  transition:box-shadow .24s ease,transform .24s ease,border-color .24s ease;
}
.cross-card:hover{box-shadow:var(--sh-2);transform:translateY(-4px);border-color:#DAD3FB;text-decoration:none;color:var(--text)}
.cross-card .cross-media{
  border-radius:12px;
  overflow:hidden;
  aspect-ratio:4/3;
  background:rgba(91,71,216,.08);
}
.cross-card .cross-media img{width:100%;height:100%;object-fit:cover;transition:transform .24s ease-out}
.cross-card:hover .cross-media img{transform:scale(1.04)}
.cross-card h3{font-size:17.5px;margin-bottom:8px}
.cross-card p{font-size:14px;color:var(--text-2);margin:0 0 10px}

/* ================= CTA ================= */
.cta-band{
  position:relative;
  background:var(--ink);
  color:var(--text-inv);
  overflow:hidden;
  padding:72px 0;
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    radial-gradient(circle at 16% 42%, rgba(255,255,255,.2) 0 1.3px, transparent 2.1px) 0 0/160px 160px,
    linear-gradient(180deg, rgba(67,50,159,.55), rgba(22,20,46,.95));
  opacity:.9;
}
.cta-band .container{position:relative;z-index:2}
.cta-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr;
  gap:48px;
  align-items:center;
  min-height:240px;
}
.cta-grid h2{color:#fff;font-size:27px;margin-bottom:16px}
.cta-points{display:flex;flex-wrap:wrap;gap:14px 28px}
.cta-points li{
  position:relative;
  padding-left:18px;
  font-size:14.5px;
  color:rgba(244,242,255,.82);
}
.cta-points li::before{
  content:"";
  position:absolute;
  left:0;
  top:10px;
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--gold);
}
.cta-side{
  padding:26px 28px;
  border-radius:var(--r-card);
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.12);
}
.cta-side .price-line{
  display:flex;
  align-items:baseline;
  gap:10px;
  margin-bottom:6px;
}
.cta-side .price-line strong{
  font-size:32px;
  color:#fff;
  font-variant-numeric:tabular-nums;
  line-height:1.1;
}
.cta-side .price-line span{font-size:14px;color:rgba(244,242,255,.7)}
.cta-side p{font-size:13.5px;color:rgba(244,242,255,.68);margin:0 0 20px}
.cta-side .btn-gold{width:100%;margin-bottom:14px}
.cta-side .btn-quiet{color:var(--gold)}
.cta-side .btn-quiet:hover{color:#F0C87A}

/* ================= 页脚 ================= */
.site-footer{
  background:var(--ink);
  color:var(--text-inv);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand .brand{color:#fff;font-size:18px;margin-bottom:14px}
.footer-brand p{
  font-size:13.5px;
  line-height:1.8;
  color:rgba(244,242,255,.62);
  max-width:320px;
  margin:0;
}
.footer-col h4{
  font-size:14px;
  font-weight:600;
  color:#fff;
  margin-bottom:16px;
}
.footer-col li{margin-bottom:10px}
.footer-col a,
.footer-col span{
  font-size:14px;
  color:rgba(244,242,255,.72);
  transition:color .2s ease;
}
.footer-col a:hover{color:#fff;text-decoration:none}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0 26px;
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  font-size:13px;
  color:rgba(244,242,255,.55);
}
.footer-bottom .seal{
  font-family:"Songti SC","STSong",serif;
  letter-spacing:.16em;
  color:rgba(224,176,84,.85);
}

/* ================= 响应式 ================= */
@media (max-width:1199.98px){
  .container{max-width:960px}
  .mega-panel{width:760px;right:-40px}
}
@media (max-width:991.98px){
  .container{max-width:100%}
  .nav-toggle{display:flex;margin-left:auto}
  .header-actions{display:none}
  .main-nav{
    position:fixed;
    top:68px;
    left:0;
    right:0;
    bottom:0;
    flex-direction:column;
    align-items:stretch;
    justify-content:flex-start;
    gap:4px;
    padding:18px 20px 40px;
    background:#fff;
    overflow-y:auto;
    transform:translateX(100%);
    transition:transform .26s ease;
    z-index:1020;
    flex:none;
  }
  .main-nav.nav-open{transform:translateX(0)}
  .main-nav .nav-link{
    height:auto;
    min-height:48px;
    padding:0 14px;
    border-radius:10px;
    font-size:16px;
  }
  .mega-holder{width:100%}
  .mega-trigger{width:100%;justify-content:space-between;min-height:48px;font-size:16px;padding:0 14px}
  .mega-panel{
    position:static;
    display:none;
    width:auto;
    right:auto;
    opacity:1;
    visibility:visible;
    transform:none;
    box-shadow:none;
    border:0;
    border-top:1px solid var(--line);
    border-radius:0;
    padding:14px 4px 4px;
    grid-template-columns:1fr;
    gap:18px;
  }
  .mega-holder.mega-open .mega-panel{display:grid}
  .cat-hero{padding:48px 0 56px}
  .cat-hero h1{font-size:31px}
  .ladder{grid-template-columns:repeat(2,1fr);align-items:stretch}
  .ladder-step{min-height:auto !important}
  .overview{grid-template-columns:1fr;gap:32px}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .flow{grid-template-columns:1fr}
  .cta-grid{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px}
}
@media (max-width:767.98px){
  :root{--sec:56px}
  .container{padding-left:16px;padding-right:16px}
  .cat-hero h1{font-size:27px}
  .cat-hero .lead{font-size:15.5px}
  .section-head h2{font-size:23px}
  .section-head{margin-bottom:30px}
  .ladder{grid-template-columns:1fr}
  .tier-axis::before{left:31px}
  .tier-item{grid-template-columns:66px 1fr;gap:16px}
  .tier-badge{width:60px;height:60px}
  .tier-badge strong{font-size:12.5px}
  .tier-badge span{font-size:10px}
  .tier-body{padding:20px 18px}
  .tier-points{grid-template-columns:1fr}
  .stat-grid{grid-template-columns:1fr}
  .cross-links{grid-template-columns:1fr}
  .cross-card{grid-template-columns:1fr;gap:16px}
  .cross-card .cross-media{aspect-ratio:16/9}
  .cta-band{padding:48px 0}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .hero-actions{gap:10px}
  .hero-actions .btn-star,
  .hero-actions .btn-ghost{width:100%}
}
@media (max-width:575.98px){
  body{font-size:15.5px}
  .cat-hero h1{font-size:24px}
  .cta-side{padding:20px}
  .cta-side .price-line strong{font-size:27px}
  .stat-value{font-size:27px}
  .brand-text{font-size:17px}
}