/* roulang page: index */
:root{
  --ink:#120E24;
  --bg:#F6F5FB;
  --surface:#FFFFFF;
  --primary:#5A3DE6;
  --primary-deep:#3A2AA8;
  --accent:#16D3A0;
  --star:#FFB347;
  --text:#1C1A2E;
  --muted:#6B6880;
  --line:#E4E2F2;
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --sh-1:0 2px 8px rgba(18,14,36,.06);
  --sh-2:0 14px 34px rgba(18,14,36,.12);
  --bs-primary:#5A3DE6;
  --bs-primary-rgb:90,61,230;
  --bs-body-color:#1C1A2E;
  --bs-body-bg:#F6F5FB;
  --bs-border-color:#E4E2F2;
  --bs-link-color:#5A3DE6;
  --bs-link-hover-color:#3A2AA8;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --bs-body-font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16.5px;line-height:1.85;letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary-deep)}
h1,h2,h3,h4{margin:0 0 .55em;color:var(--ink);letter-spacing:0;font-weight:700}
h1{font-size:clamp(30px,4.4vw,52px);line-height:1.25}
h2{font-size:clamp(26px,3vw,34px);line-height:1.35}
h3{font-size:clamp(19px,2vw,22px);line-height:1.4;font-weight:600}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
.container{max-width:1200px!important;padding-left:24px;padding-right:24px;width:100%;margin:0 auto}
@media (max-width:575.98px){.container{padding-left:16px;padding-right:16px}}
::selection{background:rgba(90,61,230,.18)}

/* ---------- 顶部条 ---------- */
.top-strip{height:4px;background:linear-gradient(90deg,var(--primary) 0%,#7B5CF0 45%,var(--accent) 100%)}
.topbar{background:var(--ink);color:rgba(255,255,255,.68);font-size:13px;line-height:1.6}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:7px 0;flex-wrap:wrap}
.topbar a{color:rgba(255,255,255,.8)}
.topbar a:hover{color:var(--accent)}
.topbar-links{display:flex;gap:18px;flex-wrap:wrap}
.topbar-note{color:rgba(255,255,255,.5)}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:saturate(140%) blur(6px);transition:box-shadow .25s ease,padding .25s ease}
.site-header.is-stuck{box-shadow:0 8px 24px rgba(18,14,36,.1)}
.nav-row{display:flex;align-items:center;gap:28px;padding:16px 0;transition:padding .25s ease}
.site-header.is-stuck .nav-row{padding:4px 0}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{width:42px;height:42px;flex-shrink:0}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text .b1{font-size:17px;font-weight:700;color:var(--ink)}
.brand-text .b2{font-size:12.5px;color:var(--muted);letter-spacing:0}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:8px}
.main-nav > a{padding:9px 13px;font-size:15.5px;color:var(--text);border-radius:8px;border-bottom:2px solid transparent;transition:color .2s,border-color .2s,background .2s}
.main-nav > a:hover{color:var(--primary);background:#F4F2FE}
.main-nav > a.active{color:var(--ink);border-bottom-color:var(--primary);font-weight:600}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:14px}
.dropdown-toggle-custom{display:inline-flex;align-items:center;gap:7px;padding:9px 14px;font-size:15.5px;color:var(--text);background:#fff;border:1px solid var(--line);border-radius:999px;cursor:pointer;transition:.2s}
.dropdown-toggle-custom:hover{border-color:var(--primary);color:var(--primary-deep)}
.dropdown-toggle-custom .caret{width:8px;height:8px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg) translateY(-2px);transition:transform .2s}
.cat-menu{position:relative}
.cat-panel{position:absolute;right:0;top:calc(100% + 12px);width:300px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--sh-2);padding:12px;opacity:0;visibility:hidden;transform:translateY(-6px);transition:.22s ease;z-index:20}
.cat-menu.open .cat-panel{opacity:1;visibility:visible;transform:translateY(0)}
.cat-item{display:flex;gap:10px;align-items:flex-start;padding:10px 12px;border-radius:12px}
.cat-item:hover{background:#F5F3FF}
.cat-item .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);margin-top:9px;flex-shrink:0}
.cat-item .t{font-size:15px;font-weight:600;color:var(--ink);display:block;line-height:1.4}
.cat-item .d{font-size:12.5px;color:var(--muted);display:block;line-height:1.6}
.btn{--bs-btn-border-radius:10px;display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:10px 22px;font-size:15px;font-weight:600;border-radius:10px;border:1px solid transparent;transition:transform .2s ease,background .2s ease,border-color .2s ease,color .2s ease,box-shadow .2s ease;line-height:1.3;text-align:center}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px;box-shadow:none}
.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}
.btn-primary:hover,.btn-primary:focus{background:var(--primary-deep);border-color:var(--primary-deep);color:#fff;transform:translateY(-1px)}
.btn-accent{background:var(--accent);border-color:var(--accent);color:#06301F}
.btn-accent:hover,.btn-accent:focus{background:#12BE90;border-color:#12BE90;color:#04241A;transform:translateY(-1px)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover,.btn-ghost:focus{border-color:var(--primary);background:#F2EFFE;color:var(--primary-deep)}
.btn-outline-light-2{background:transparent;border-color:rgba(255,255,255,.35);color:#fff}
.btn-outline-light-2:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.7);color:#fff}
.btn-nav-cta{border-radius:999px;padding:11px 22px;min-height:44px;font-size:15px}
.btn .arrow{transition:transform .2s ease;display:inline-block}
.btn:hover .arrow{transform:translateX(3px)}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;color:var(--primary)}
.link-arrow .arrow{transition:transform .2s ease}
.link-arrow:hover .arrow{transform:translateX(3px)}
.burger{display:none;width:46px;height:46px;border:1px solid var(--line);border-radius:12px;background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer}
.burger span{display:block;width:20px;height:2px;background:var(--ink);border-radius:2px;transition:.2s}
.burger:hover{border-color:var(--primary)}
.burger:hover span{background:var(--primary)}

/* ---------- 抽屉 ---------- */
.drawer{position:fixed;inset:0;z-index:1060;display:none}
.drawer.open{display:block}
.drawer-mask{position:absolute;inset:0;background:rgba(18,14,36,.6);border:0;padding:0}
.drawer-panel{position:absolute;top:0;right:0;bottom:0;width:min(90vw,400px);background:linear-gradient(180deg,#120E24,#1D1640);display:flex;flex-direction:column;animation:slideIn .26s ease}
@keyframes slideIn{from{transform:translateX(30px);opacity:.4}to{transform:translateX(0);opacity:1}}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid rgba(255,255,255,.12)}
.drawer-head .bt{color:#fff;font-weight:700;font-size:16px}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid rgba(255,255,255,.25);background:transparent;color:#fff;font-size:18px;line-height:1;cursor:pointer}
.drawer-close:hover{background:rgba(255,255,255,.1)}
.drawer-body{flex:1;overflow-y:auto;padding:20px}
.drawer-body .dl-title{color:rgba(255,255,255,.55);font-size:12.5px;margin-bottom:10px}
.drawer-cards{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:24px}
.drawer-card{display:block;padding:14px;border-radius:14px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);color:#fff}
.drawer-card:hover{background:rgba(90,61,230,.28);border-color:rgba(255,255,255,.3);color:#fff}
.drawer-card .t{font-size:15px;font-weight:600;display:block;margin-bottom:4px}
.drawer-card .d{font-size:12.5px;color:rgba(255,255,255,.6);line-height:1.6}
.drawer-home{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-radius:14px;border:1px solid rgba(255,255,255,.12);color:#fff;font-size:15px}
.drawer-home:hover{background:rgba(255,255,255,.08);color:#fff}
.drawer-foot{padding:16px 20px 22px;border-top:1px solid rgba(255,255,255,.12);background:rgba(0,0,0,.18)}
.drawer-foot .btn{width:100%}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;color:#fff;background:linear-gradient(180deg,#120E24 0%,#1D1640 100%);padding:76px 0 84px}
.hero::before{content:"";position:absolute;inset:0;pointer-events:none;opacity:.75;
  background-image:
    radial-gradient(1.6px 1.6px at 12% 22%,rgba(255,255,255,.75),transparent 60%),
    radial-gradient(1.4px 1.4px at 28% 62%,rgba(255,255,255,.55),transparent 60%),
    radial-gradient(1.8px 1.8px at 46% 18%,rgba(255,179,71,.8),transparent 60%),
    radial-gradient(1.4px 1.4px at 64% 74%,rgba(255,255,255,.5),transparent 60%),
    radial-gradient(1.6px 1.6px at 82% 34%,rgba(22,211,160,.75),transparent 60%),
    radial-gradient(1.3px 1.3px at 92% 68%,rgba(255,255,255,.45),transparent 60%),
    radial-gradient(1.5px 1.5px at 6% 82%,rgba(255,255,255,.4),transparent 60%);
}
.hero::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:.1;
  background-image:repeating-linear-gradient(98deg,rgba(255,255,255,.9) 0 1px,transparent 1px 48px)}
.hero-arc{position:absolute;left:0;right:0;bottom:0;width:100%;height:220px;opacity:.85;pointer-events:none}
.hero-inner{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:52px;align-items:center}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);font-size:13px;color:rgba(255,255,255,.86);margin-bottom:22px}
.hero-badge .pulse{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(22,211,160,.18)}
.hero h1{color:#fff;margin-bottom:18px;max-width:14em}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero-sub{color:rgba(255,255,255,.76);font-size:17px;line-height:1.9;max-width:32em;margin-bottom:30px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:32px}
.hero-points{display:flex;gap:26px;flex-wrap:wrap;padding-top:22px;border-top:1px solid rgba(255,255,255,.12)}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.72)}
.hero-points .tick{width:18px;height:18px;flex-shrink:0}
.hero-media{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid rgba(255,255,255,.16);box-shadow:0 24px 60px rgba(0,0,0,.45)}
.hero-media img{width:100%;aspect-ratio:4/3.1;object-fit:cover}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(18,14,36,0) 45%,rgba(18,14,36,.72) 100%)}
.hero-media-cap{position:absolute;left:18px;right:18px;bottom:14px;z-index:2;font-size:13px;color:rgba(255,255,255,.78);display:flex;align-items:center;gap:8px}
.hero-media-cap .ln{flex:1;height:1px;background:rgba(255,255,255,.25)}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section-sm{padding:72px 0}
.section-alt{background:#FFFFFF;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:44px}
.section-head h2{margin-bottom:10px}
.section-sub{color:var(--muted);font-size:16px;max-width:44em;margin:0}
.kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--primary);background:#F0EDFE;border-radius:999px;padding:5px 13px;margin-bottom:14px}
.kicker::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary)}

/* ---------- 痛点 ---------- */
.pain-list{display:grid;gap:16px}
.pain-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);transition:border-color .25s ease,box-shadow .25s ease,transform .25s ease}
.pain-item[open]{border-color:rgba(90,61,230,.4);box-shadow:var(--sh-2)}
.pain-item summary{display:flex;align-items:flex-start;gap:16px;padding:20px 22px;cursor:pointer;list-style:none}
.pain-item summary::-webkit-details-marker{display:none}
.pain-icon{width:44px;height:44px;flex-shrink:0;border-radius:12px;background:#F2EFFE;display:flex;align-items:center;justify-content:center}
.pain-icon svg{width:24px;height:24px;stroke:var(--primary);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.pain-item h3{font-size:19px;margin:0 0 4px}
.pain-note{font-size:14px;color:var(--muted);display:block;line-height:1.7}
.pain-toggle{width:30px;height:30px;flex-shrink:0;margin-left:auto;border-radius:50%;border:1px solid var(--line);position:relative;transition:.25s}
.pain-toggle::before,.pain-toggle::after{content:"";position:absolute;background:var(--primary);border-radius:2px;transition:.25s}
.pain-toggle::before{width:12px;height:2px;left:8px;top:13px}
.pain-toggle::after{width:2px;height:12px;left:13px;top:8px}
.pain-item[open] .pain-toggle{background:var(--primary);border-color:var(--primary);transform:rotate(90deg)}
.pain-item[open] .pain-toggle::before,.pain-item[open] .pain-toggle::after{background:#fff}
.pain-body{padding:0 22px 22px 82px;color:var(--muted);line-height:1.9;font-size:15.5px}
.pain-body a{font-weight:600}
@media (max-width:575.98px){.pain-body{padding:0 20px 20px 20px}}

/* ---------- 方案卡片 ---------- */
.plan-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start}
.card-base{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;overflow:hidden}
.card-base:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(90,61,230,.35)}
.plan-lg{display:grid;grid-template-columns:.92fr 1.08fr;min-height:100%}
.plan-lg .plan-media{position:relative;min-height:320px}
.plan-lg .plan-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:auto}
.plan-body{padding:30px 30px 28px}
.plan-num{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:12px;background:#F0EDFE;color:var(--primary-deep);font-weight:700;font-size:15px;margin-bottom:16px;font-variant-numeric:tabular-nums}
.plan-card h3{font-size:22px;margin-bottom:10px}
.plan-desc{color:var(--muted);font-size:15px;margin-bottom:16px}
.plan-points{display:grid;gap:10px;margin:0 0 20px}
.plan-points li{position:relative;padding-left:22px;font-size:15px;color:var(--text);line-height:1.75}
.plan-points li::before{content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:2px;background:var(--accent);transform:rotate(45deg)}
.plan-stack{display:grid;gap:24px}
.plan-sm{display:grid;grid-template-columns:132px 1fr}
.plan-sm .plan-media img{width:100%;height:100%;object-fit:cover;min-height:100%}
.plan-sm .plan-body{padding:24px 24px 22px}
.plan-sm h3{font-size:20px}
.plan-tag{display:inline-block;font-size:12px;font-weight:600;color:var(--primary-deep);background:#F0EDFE;border-radius:6px;padding:3px 10px;margin-bottom:12px}
@media (max-width:991.98px){
  .plan-grid{grid-template-columns:1fr}
  .plan-sm{grid-template-columns:120px 1fr}
}
@media (max-width:575.98px){
  .plan-lg{grid-template-columns:1fr}
  .plan-lg .plan-media{min-height:0}
  .plan-lg .plan-media img{aspect-ratio:16/9}
  .plan-sm{grid-template-columns:1fr}
  .plan-sm .plan-media img{aspect-ratio:16/9}
  .plan-body{padding:22px 20px}
}

/* ---------- 数据区 ---------- */
.stats{position:relative;overflow:hidden;background:linear-gradient(180deg,#120E24,#1D1640);color:#fff;padding:80px 0}
.stats::before{content:"";position:absolute;inset:0;opacity:.6;pointer-events:none;
  background-image:
    radial-gradient(1.5px 1.5px at 18% 28%,rgba(255,255,255,.6),transparent 60%),
    radial-gradient(1.5px 1.5px at 44% 70%,rgba(22,211,160,.7),transparent 60%),
    radial-gradient(1.4px 1.4px at 72% 26%,rgba(255,179,71,.7),transparent 60%),
    radial-gradient(1.4px 1.4px at 88% 62%,rgba(255,255,255,.45),transparent 60%)}
.stats::after{content:"";position:absolute;inset:0;opacity:.08;pointer-events:none;
  background-image:repeating-linear-gradient(98deg,rgba(255,255,255,.9) 0 1px,transparent 1px 56px)}
.stats-inner{position:relative;z-index:2}
.stats-head{max-width:46em;margin-bottom:44px}
.stats-head h2{color:#fff}
.stats-head p{color:rgba(255,255,255,.7);margin:0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.14);border-radius:var(--r-lg);overflow:hidden;border:1px solid rgba(255,255,255,.14)}
.stat-item{background:rgba(18,14,36,.55);padding:30px 24px}
.stat-num{font-size:clamp(30px,3.6vw,44px);font-weight:700;color:#fff;line-height:1.1;font-variant-numeric:tabular-nums;letter-spacing:0}
.stat-num span{font-size:.5em;color:var(--accent);margin-left:6px;font-weight:600}
.stat-label{color:rgba(255,255,255,.72);font-size:14.5px;margin-top:10px}
.stat-line{height:2px;width:34px;background:var(--accent);border-radius:2px;margin-top:16px}
.stats-note{margin-top:20px;font-size:12px;color:rgba(255,255,255,.45);line-height:1.8}
@media (max-width:991.98px){.stats-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:575.98px){.stats{padding:56px 0}.stat-item{padding:22px 18px}}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:24px;align-items:start}
.news-feature{display:flex;flex-direction:column}
.news-feature .nf-media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.news-feature .nf-body{padding:26px 28px 28px}
.badge-cat{display:inline-block;font-size:12px;font-weight:600;color:var(--primary-deep);background:#F0EDFE;border-radius:6px;padding:3px 10px;margin-bottom:14px}
.news-title{display:block;font-size:21px;font-weight:700;color:var(--ink);line-height:1.45;margin-bottom:10px;transition:color .2s}
.card-base:hover .news-title{color:var(--primary)}
.news-excerpt{color:var(--muted);font-size:15px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:16px}
.news-meta{display:flex;align-items:center;gap:14px;font-size:13px;color:var(--muted);border-top:1px solid var(--line);padding-top:14px}
.news-meta .go{margin-left:auto;color:var(--primary);font-weight:600;display:inline-flex;align-items:center;gap:5px}
.news-list{display:grid;gap:16px}
.news-item{display:grid;grid-template-columns:118px 1fr;gap:16px;padding:14px}
.news-item .ni-media img{width:100%;height:100%;object-fit:cover;border-radius:10px;aspect-ratio:4/3}
.news-item .ni-body{min-width:0}
.news-item .news-title{font-size:17px;margin-bottom:6px}
.news-item .news-excerpt{font-size:14px;margin-bottom:10px}
.empty-state{border:1px dashed var(--line);border-radius:var(--r-lg);background:#fff;padding:56px 24px;text-align:center}
.empty-state svg{width:46px;height:46px;stroke:var(--muted);fill:none;stroke-width:1.4;margin:0 auto 16px}
.empty-state p{color:var(--muted);margin-bottom:20px}
.load-more{display:flex;justify-content:center;margin-top:36px}
@media (max-width:991.98px){.news-grid{grid-template-columns:1fr}}
@media (max-width:575.98px){
  .news-feature .nf-body{padding:20px}
  .news-item{grid-template-columns:1fr;padding:12px}
  .news-item .ni-media img{aspect-ratio:16/9}
}

/* ---------- FAQ ---------- */
.accordion{--bs-accordion-border-color:var(--line);--bs-accordion-border-radius:14px;--bs-accordion-inner-border-radius:14px}
.acc-item{background:#fff;border:1px solid var(--line)!important;border-radius:var(--r-md)!important;margin-bottom:14px;overflow:hidden;box-shadow:var(--sh-1);transition:border-color .25s,box-shadow .25s}
.acc-item:last-child{margin-bottom:0}
.acc-item:hover{border-color:rgba(90,61,230,.35)!important}
.accordion-button{display:flex;align-items:center;gap:16px;width:100%;min-height:52px;padding:18px 22px;font-size:17px;font-weight:600;color:var(--ink);background:#fff;border:0;text-align:left;box-shadow:none!important}
.accordion-button:not(.collapsed){color:var(--ink);background:#FCFBFF}
.accordion-button:focus-visible{outline:2px solid var(--primary);outline-offset:-2px}
.acc-q{width:28px;height:28px;flex-shrink:0;border-radius:8px;background:#F0EDFE;color:var(--primary-deep);font-size:14px;font-weight:700;display:flex;align-items:center;justify-content:center}
.accordion-button::after{content:"";width:12px;height:12px;margin-left:auto;border-right:2px solid var(--primary);border-bottom:2px solid var(--primary);background-image:none!important;transform:rotate(45deg);transition:transform .25s ease;flex-shrink:0}
.accordion-button:not(.collapsed)::after{transform:rotate(225deg)}
.accordion-body{padding:4px 22px 24px 66px;color:var(--muted);font-size:15.5px;line-height:1.9}
.accordion-body p{margin-bottom:12px}
.accordion-body p:last-child{margin-bottom:0}
@media (max-width:575.98px){
  .accordion-button{padding:16px 16px;font-size:16px;gap:12px}
  .accordion-body{padding:2px 16px 20px 16px}
}

/* ---------- CTA 条 ---------- */
.cta-band{position:relative;overflow:hidden;border-radius:22px;background:linear-gradient(120deg,#1D1640 0%,#3A2AA8 60%,#5A3DE6 100%);color:#fff;padding:48px 52px;display:flex;align-items:center;justify-content:space-between;gap:36px;box-shadow:0 20px 50px rgba(58,42,168,.28)}
.cta-band::before{content:"";position:absolute;inset:0;opacity:.5;pointer-events:none;
  background-image:
    radial-gradient(1.5px 1.5px at 14% 30%,rgba(255,255,255,.7),transparent 60%),
    radial-gradient(1.5px 1.5px at 52% 76%,rgba(22,211,160,.8),transparent 60%),
    radial-gradient(1.4px 1.4px at 84% 24%,rgba(255,179,71,.8),transparent 60%)}
.cta-band > *{position:relative;z-index:2}
.cta-band h2{color:#fff;font-size:clamp(24px,2.6vw,30px);margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.78);margin:0;max-width:44em}
.cta-band .cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex-shrink:0}
.privacy-fold{margin-top:22px;border:1px solid var(--line);border-radius:var(--r-md);background:#fff}
.privacy-fold summary{display:flex;align-items:center;gap:10px;padding:15px 20px;font-size:13px;color:var(--muted);cursor:pointer;list-style:none}
.privacy-fold summary::-webkit-details-marker{display:none}
.privacy-fold summary .mark{width:16px;height:16px;border-radius:5px;border:1px solid var(--primary);position:relative;flex-shrink:0}
.privacy-fold summary .mark::after{content:"";position:absolute;left:4px;top:1px;width:5px;height:9px;border-right:2px solid var(--primary);border-bottom:2px solid var(--primary);transform:rotate(45deg)}
.privacy-fold .fold-body{padding:0 20px 20px;font-size:13px;color:var(--muted);line-height:1.7}
.privacy-fold .fold-body ul{display:grid;gap:6px}
.privacy-fold .fold-body li{padding-left:16px;position:relative}
.privacy-fold .fold-body li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--line)}
.privacy-fold .fold-body strong{color:var(--ink);font-weight:600}
@media (max-width:991.98px){
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 28px}
}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;overflow:hidden;background:linear-gradient(180deg,#120E24,#1D1640);color:rgba(255,255,255,.66);padding:72px 0 0;margin-top:96px}
.site-footer::before{content:"";position:absolute;inset:0;opacity:.5;pointer-events:none;
  background-image:
    radial-gradient(1.5px 1.5px at 10% 24%,rgba(255,255,255,.55),transparent 60%),
    radial-gradient(1.5px 1.5px at 36% 68%,rgba(22,211,160,.7),transparent 60%),
    radial-gradient(1.4px 1.4px at 66% 30%,rgba(255,255,255,.45),transparent 60%),
    radial-gradient(1.4px 1.4px at 90% 72%,rgba(255,179,71,.65),transparent 60%)}
.footer-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:56px}
.footer-brand .fb-name{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .fb-name span{color:#fff;font-weight:700;font-size:17px}
.footer-brand p{font-size:14px;line-height:1.85;margin-bottom:18px}
.footer-brand .fb-points{display:grid;gap:8px}
.footer-brand .fb-points li{font-size:13.5px;padding-left:18px;position:relative}
.footer-brand .fb-points li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--accent)}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:18px;font-weight:600}
.footer-col ul{display:grid;gap:11px}
.footer-col a{color:rgba(255,255,255,.68);font-size:14.5px}
.footer-col a:hover{color:var(--accent)}
.footer-col .plain{font-size:14.5px;color:rgba(255,255,255,.68)}
.footer-col .small{font-size:12.5px;color:rgba(255,255,255,.45);line-height:1.8;margin-top:14px}
.footer-bottom{position:relative;z-index:2;border-top:1px solid rgba(255,255,255,.12);padding:22px 0 26px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.5)}
.footer-bottom a{color:rgba(255,255,255,.6)}
@media (max-width:991.98px){.footer-grid{grid-template-columns:1fr 1fr;gap:34px}}
@media (max-width:575.98px){
  .site-footer{padding-top:52px;margin-top:56px}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:36px}
}

/* ---------- 弹层 ---------- */
.modal-backdrop.show{opacity:1;background:rgba(18,14,36,.6);backdrop-filter:blur(4px)}
.modal-content{border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:0 30px 80px rgba(18,14,36,.35)}
.modal-header{position:relative;background:linear-gradient(180deg,#120E24,#1D1640);border-bottom:0;padding:24px 26px}
.modal-header::after{content:"";position:absolute;inset:0;opacity:.6;pointer-events:none;
  background-image:
    radial-gradient(1.5px 1.5px at 20% 40%,rgba(255,255,255,.7),transparent 60%),
    radial-gradient(1.5px 1.5px at 62% 70%,rgba(22,211,160,.8),transparent 60%),
    radial-gradient(1.4px 1.4px at 86% 30%,rgba(255,179,71,.7),transparent 60%)}
.modal-header .mh-inner{position:relative;z-index:2}
.modal-title{color:#fff;font-size:20px;font-weight:700;margin-bottom:6px}
.modal-header .mh-sub{color:rgba(255,255,255,.66);font-size:13.5px;margin:0}
.modal-header .btn-close{position:relative;z-index:3;filter:invert(1) grayscale(1) brightness(2);opacity:.8}
.modal-body{padding:26px}
.form-label{font-size:14px;font-weight:600;color:var(--ink);margin-bottom:8px}
.form-control,.form-select{border:1px solid var(--line);border-radius:10px;padding:11px 14px;font-size:15px;color:var(--text);min-height:46px;box-shadow:none;transition:border-color .2s,box-shadow .2s}
.form-control:focus,.form-select:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(90,61,230,.16)}
.form-control.is-invalid,.form-select.is-invalid{border-color:#D6455B;box-shadow:0 0 0 3px rgba(214,69,91,.12)}
.err-msg{display:none;font-size:12px;color:#D6455B;margin-top:6px}
.err-msg.show{display:block}
.form-check-input{border:1px solid var(--line);width:18px;height:18px;margin-top:3px}
.form-check-input:checked{background-color:var(--primary);border-color:var(--primary)}
.form-check-input:focus{box-shadow:0 0 0 3px rgba(90,61,230,.16);border-color:var(--primary)}
.form-check-label{font-size:13.5px;color:var(--muted);line-height:1.7}
.form-note{font-size:12.5px;color:var(--muted);line-height:1.7;margin-top:10px}
.form-done{display:none;margin-top:16px;padding:14px 16px;border-radius:12px;background:#EAFBF5;border:1px solid rgba(22,211,160,.5);color:#0C6B51;font-size:14px}
.form-done.show{display:block}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .main-nav{gap:2px}
  .main-nav > a{padding:9px 10px;font-size:15px}
}
@media (max-width:991.98px){
  .section{padding:72px 0}
  .section-sm{padding:56px 0}
  .main-nav,.nav-right .cat-menu{display:none}
  .burger{display:flex}
  .hero{padding:56px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .topbar-note{display:none}
  .hero-actions .btn{width:100%}
  .cta-band .cta-actions{width:100%}
  .cta-band .cta-actions .btn{width:100%}
}
@media (max-width:575.98px){
  .section{padding:56px 0}
  .section-sm{padding:44px 0}
  .stats-grid{grid-template-columns:1fr}
  .hero h1{font-size:30px}
}

/* roulang page: category1 */
:root{
  --ink:#120E24;
  --bg:#F6F5FB;
  --surface:#FFFFFF;
  --primary:#5A3DE6;
  --primary-deep:#3A2AA8;
  --accent:#16D3A0;
  --star:#FFB347;
  --text:#1C1A2E;
  --muted:#6B6880;
  --line:#E4E2F2;
  --tint:#F1EFFC;
  --r-lg:18px;
  --r-md:14px;
  --r-sm:10px;
  --sh-1:0 2px 8px rgba(18,14,36,.06);
  --sh-2:0 14px 34px rgba(18,14,36,.12);
  --bs-primary:#5A3DE6;
  --bs-body-font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --bs-body-color:#1C1A2E;
  --bs-border-color:#E4E2F2;
  --bs-link-color:#5A3DE6;
  --bs-link-hover-color:#3A2AA8;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
a:hover{color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3,h4{letter-spacing:0;line-height:1.35;font-weight:700}
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:0 20px}

/* ---------- 顶部强调条 ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .25s ease}
.site-header.is-stuck{box-shadow:0 10px 26px rgba(18,14,36,.12)}
.top-strip{background:var(--ink);border-top:4px solid var(--primary);color:rgba(255,255,255,.7);font-size:13px}
.top-strip-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:42px}
.top-strip-inner p{margin:0;font-size:13px}
.top-links{display:flex;align-items:center;gap:18px;font-size:13px}
.top-links a{color:rgba(255,255,255,.7);transition:color .2s}
.top-links a:hover{color:var(--accent)}

/* ---------- 导航 ---------- */
.nav-inner{display:flex;align-items:center;gap:24px;min-height:74px;transition:min-height .25s ease}
.site-header.is-stuck .nav-inner{min-height:62px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand svg{flex:0 0 auto}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.b-main{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:.02em}
.b-sub{font-size:11px;color:var(--muted);letter-spacing:.24em}
.main-nav{display:flex;align-items:center;gap:4px}
.main-nav a{position:relative;padding:10px 14px;font-size:15px;color:var(--text);border-radius:8px;transition:color .2s,background .2s}
.main-nav a:hover{background:var(--tint);color:var(--primary)}
.main-nav a.active{font-weight:600;color:var(--ink)}
.main-nav a.active::after{content:"";position:absolute;left:14px;right:14px;bottom:1px;height:2px;border-radius:2px;background:var(--primary)}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.drop-toggle{display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:0 16px;background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);font-size:14px;color:var(--text);cursor:pointer;transition:border-color .2s,color .2s}
.drop-toggle:hover{border-color:var(--primary);color:var(--primary)}
.drop-toggle .chev{transition:transform .2s}
.drop-toggle[aria-expanded="true"] .chev{transform:rotate(180deg)}
.dropdown-menu{border:1px solid var(--line);border-radius:12px;box-shadow:var(--sh-2);padding:8px;min-width:196px;margin-top:8px}
.dropdown-item{border-radius:8px;padding:9px 12px;font-size:14px;color:var(--text)}
.dropdown-item:hover,.dropdown-item:focus{background:var(--tint);color:var(--primary)}
.btn-accent{display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:0 22px;border:0;border-radius:999px;background:var(--accent);color:#0B2E24;font-size:15px;font-weight:600;cursor:pointer;transition:background .2s,transform .2s,box-shadow .2s}
.btn-accent:hover{background:#12BE90;color:#0B2E24;transform:translateY(-1px);box-shadow:0 10px 22px rgba(22,211,160,.32)}
.btn-accent .arw{transition:transform .2s}
.btn-accent:hover .arw{transform:translateX(3px)}
.nav-burger{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-sm);background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer}
.nav-burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink)}

/* ---------- 抽屉 ---------- */
.drawer{position:fixed;inset:0;z-index:1080;background:#fff;display:flex;flex-direction:column;transform:translateX(101%);transition:transform .3s ease;visibility:hidden}
.drawer.open{transform:none;visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 20px;border-bottom:1px solid var(--line)}
.drawer-close{width:42px;height:42px;border:1px solid var(--line);border-radius:var(--r-sm);background:#fff;font-size:20px;line-height:1;color:var(--ink);cursor:pointer}
.drawer-body{flex:1;overflow:auto;padding:20px}
.drawer-h{font-size:13px;color:var(--muted);margin-bottom:12px}
.drawer-links{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.drawer-card{border:1px solid var(--line);border-radius:var(--r-md);padding:16px;background:#fff;box-shadow:var(--sh-1);transition:transform .2s,border-color .2s}
.drawer-card:hover{transform:translateY(-2px);border-color:var(--primary)}
.drawer-card strong{display:block;font-size:15px;color:var(--ink);margin-bottom:6px}
.drawer-card em{display:block;font-style:normal;font-size:12.5px;color:var(--muted);line-height:1.6}
.drawer-foot{padding:16px 20px;border-top:1px solid var(--line);background:#fff}
.drawer-foot .btn-accent{width:100%;justify-content:center}

/* ---------- 页面横幅 ---------- */
.page-banner{position:relative;overflow:hidden;color:#fff;background:var(--ink) url('/assets/images/backpic/back-1.webp') center/cover no-repeat}
.page-banner::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(18,14,36,.88),rgba(29,22,64,.94))}
.page-banner::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:.85;background-image:
  radial-gradient(1.6px 1.6px at 16% 28%,rgba(255,255,255,.6),transparent 60%),
  radial-gradient(1.4px 1.4px at 70% 20%,rgba(255,179,71,.75),transparent 60%),
  radial-gradient(1.4px 1.4px at 44% 72%,rgba(255,255,255,.42),transparent 60%),
  radial-gradient(1.2px 1.2px at 88% 58%,rgba(22,211,160,.6),transparent 60%)}
.page-banner .arc{position:absolute;left:-12%;right:-12%;bottom:-130px;height:270px;border-top:1.5px solid rgba(22,211,160,.35);border-radius:50%;transform:rotate(-8deg);pointer-events:none}
.page-banner .arc-2{position:absolute;left:-12%;right:-12%;bottom:-176px;height:270px;border-top:1px solid rgba(255,255,255,.14);border-radius:50%;transform:rotate(-8deg);pointer-events:none}
.banner-inner{position:relative;z-index:2;padding:78px 0 76px;max-width:840px}
.crumb{display:flex;align-items:center;gap:10px;font-size:13px;color:rgba(255,255,255,.58)}
.crumb a{color:rgba(255,255,255,.58);transition:color .2s}
.crumb a:hover{color:#fff}
.crumb .sep{color:rgba(255,255,255,.3)}
.banner-inner h1{font-size:clamp(30px,4.4vw,52px);font-weight:700;margin:18px 0 14px}
.banner-sub{font-size:17px;line-height:1.85;color:rgba(255,255,255,.8);max-width:720px}
.banner-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.tag{display:inline-flex;align-items:center;font-size:13px;padding:5px 13px;border-radius:999px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);color:#fff}

/* ---------- 板块 ---------- */
.sec{padding:72px 0}
.sec-white{background:#fff}
.sec-line{border-top:1px solid var(--line)}
.sec-head{max-width:780px}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:13px;font-weight:600;color:var(--primary)}
.eyebrow::before{content:"";width:24px;height:2px;border-radius:2px;background:var(--accent)}
.sec-title{font-size:clamp(24px,3vw,34px);font-weight:700;color:var(--ink);margin:14px 0 16px}
.sec-desc{font-size:16.5px;color:var(--muted);max-width:760px}

/* ---------- 导语 ---------- */
.lead-wrap{max-width:820px}
.lead-wrap p{font-size:17px;line-height:1.9;color:#38364F;margin-bottom:20px}
.lead-wrap p:last-child{margin-bottom:0}
.lead-note{margin-top:28px;padding:20px 24px;border-left:4px solid var(--accent);background:var(--tint);border-radius:0 var(--r-md) var(--r-md) 0;font-size:15px;color:#3E3C5C;line-height:1.85}

/* ---------- 要点卡（两列） ---------- */
.points-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin-top:40px}
.point-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:28px 26px;box-shadow:var(--sh-1);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.point-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--primary)}
.point-top{display:flex;align-items:center;gap:12px}
.point-ico{width:42px;height:42px;border-radius:12px;background:var(--tint);color:var(--primary);display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto}
.point-num{font-variant-numeric:tabular-nums;font-size:13px;font-weight:700;color:var(--primary);background:var(--tint);border-radius:6px;padding:4px 10px}
.point-card h3{font-size:20px;font-weight:600;color:var(--ink);margin:18px 0 10px}
.point-card p{font-size:15.5px;color:var(--muted);margin-bottom:16px}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);transition:gap .2s,color .2s}
.link-more:hover{gap:11px;color:var(--primary-deep)}

/* ---------- 图文区 ---------- */
.figure-row{display:grid;grid-template-columns:1.12fr .88fr;gap:28px;margin-top:40px;align-items:stretch}
.figure-main{margin:0;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1)}
.figure-main img{width:100%;aspect-ratio:16/10;object-fit:cover}
.figure-main figcaption{padding:18px 22px;font-size:14px;color:var(--muted);border-top:1px solid var(--line)}
.figure-side{display:grid;gap:24px}
.side-card{margin:0;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.side-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--primary)}
.side-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.side-body{padding:16px 20px 20px}
.side-body h3{font-size:17px;font-weight:600;color:var(--ink);margin-bottom:6px}
.side-body p{font-size:14.5px;color:var(--muted)}

/* ---------- 节奏深色区 ---------- */
.pulse{position:relative;overflow:hidden;color:#fff;background:linear-gradient(180deg,#120E24,#1D1640);padding:72px 0}
.pulse::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:.8;background-image:
  radial-gradient(1.5px 1.5px at 12% 26%,rgba(255,255,255,.5),transparent 60%),
  radial-gradient(1.3px 1.3px at 62% 18%,rgba(255,179,71,.65),transparent 60%),
  radial-gradient(1.3px 1.3px at 84% 76%,rgba(22,211,160,.55),transparent 60%)}
.pulse .container{position:relative;z-index:2}
.pulse h2{font-size:clamp(24px,3vw,32px);font-weight:700;margin-bottom:14px}
.pulse .pulse-desc{color:rgba(255,255,255,.72);max-width:720px;font-size:16px}
.pulse-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:40px}
.pulse-card{border:1px solid rgba(255,255,255,.14);border-radius:var(--r-lg);padding:26px 24px;background:rgba(255,255,255,.04)}
.pulse-num{font-variant-numeric:tabular-nums;font-size:34px;font-weight:700;color:var(--accent);line-height:1.1}
.pulse-num small{font-size:14px;font-weight:600;color:rgba(255,255,255,.7);margin-left:6px}
.pulse-card h3{font-size:17px;font-weight:600;margin:14px 0 8px}
.pulse-card p{font-size:14.5px;color:rgba(255,255,255,.68)}
.pulse-note{margin-top:26px;font-size:12.5px;color:rgba(255,255,255,.5)}

/* ---------- CTA ---------- */
.cta-band{display:flex;align-items:center;justify-content:space-between;gap:28px;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:34px 36px;box-shadow:var(--sh-1)}
.cta-band h2{font-size:clamp(21px,2.4vw,26px);font-weight:700;color:var(--ink);margin-bottom:10px}
.cta-band p{font-size:15.5px;color:var(--muted);max-width:640px}
.cta-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.btn-main{display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:0 22px;border:0;border-radius:var(--r-sm);background:var(--primary);color:#fff;font-size:15px;font-weight:600;cursor:pointer;transition:background .2s,transform .2s,box-shadow .2s}
.btn-main:hover{background:var(--primary-deep);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(90,61,230,.28)}
.btn-ghost{display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:0 22px;border:1px solid var(--line);border-radius:var(--r-sm);background:#fff;color:var(--ink);font-size:15px;font-weight:600;cursor:pointer;transition:background .2s,border-color .2s,color .2s}
.btn-ghost:hover{background:var(--tint);border-color:var(--primary);color:var(--primary)}
.site-note{margin-top:18px;font-size:13px;color:var(--muted)}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;overflow:hidden;padding:64px 0 28px;color:rgba(255,255,255,.72);background:linear-gradient(180deg,#120E24,#1D1640);font-size:14.5px}
.site-footer::before{content:"";position:absolute;inset:0;pointer-events:none;opacity:.8;background-image:
  radial-gradient(1.5px 1.5px at 12% 22%,rgba(255,255,255,.5),transparent 60%),
  radial-gradient(1.3px 1.3px at 68% 12%,rgba(255,179,71,.6),transparent 60%),
  radial-gradient(1.3px 1.3px at 88% 70%,rgba(22,211,160,.5),transparent 60%)}
.site-footer .container{position:relative;z-index:2}
.footer-grid{display:grid;grid-template-columns:1.45fr 1fr 1.1fr 1.35fr;gap:36px}
.fb-name{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-brand p{font-size:14.5px;line-height:1.85;max-width:420px}
.fb-points{margin-top:18px}
.fb-points li{position:relative;padding-left:16px;margin-bottom:9px;font-size:14px}
.fb-points li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--accent)}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-col li{margin-bottom:10px;font-size:14px}
.footer-col a{color:rgba(255,255,255,.72);transition:color .2s}
.footer-col a:hover{color:#fff}
.footer-col .plain{color:rgba(255,255,255,.72)}
.footer-col .small{font-size:12.5px;line-height:1.75;color:rgba(255,255,255,.5);margin-top:12px}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-top:46px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:rgba(255,255,255,.5)}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .main-nav a{padding:10px 11px;font-size:14.5px}
  .nav-inner{gap:18px}
  .footer-grid{grid-template-columns:1.3fr 1fr 1.3fr;gap:30px}
  .footer-col:last-child{grid-column:span 3}
}
@media (max-width:991px){
  .main-nav{display:none}
  .nav-right{display:none}
  .nav-burger{display:flex}
  .nav-inner{min-height:66px;justify-content:space-between}
  .site-header.is-stuck .nav-inner{min-height:60px}
  .figure-row{grid-template-columns:1fr;gap:24px}
  .pulse-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-col:last-child{grid-column:span 2}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .sec{padding:48px 0}
  .pulse{padding:48px 0}
  .top-strip-inner{justify-content:center;text-align:center}
  .top-links{display:none}
  .banner-inner{padding:52px 0 56px}
  .points-grid{grid-template-columns:1fr;gap:18px}
  .pulse-grid{grid-template-columns:1fr}
  .cta-band{flex-direction:column;align-items:flex-start;padding:26px 22px}
  .cta-actions{width:100%;flex-wrap:wrap}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-col:last-child{grid-column:auto}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:575px){
  .container{padding:0 16px}
  .b-main{font-size:16px}
  .cta-actions .btn-main,.cta-actions .btn-ghost{width:100%;justify-content:center}
  .point-card{padding:22px 20px}
  .sec-title{font-size:23px}
  .drawer-links{grid-template-columns:1fr}
}

/* roulang page: article */
:root{
  --ink:#120E24;
  --ink-2:#1D1640;
  --bg:#F6F5FB;
  --surface:#FFFFFF;
  --primary:#5A3DE6;
  --primary-deep:#3A2AA8;
  --accent:#16D3A0;
  --star:#FFB347;
  --text:#1C1A2E;
  --muted:#6B6880;
  --line:#E4E2F2;
  --tint:#F1EEFE;
  --r-lg:18px;
  --r-sm:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 2px 8px rgba(18,14,36,.06);
  --sh-2:0 14px 34px rgba(18,14,36,.12);
  --bs-primary:#5A3DE6;
  --bs-primary-rgb:90,61,230;
  --bs-body-bg:#F6F5FB;
  --bs-body-color:#1C1A2E;
  --bs-border-color:#E4E2F2;
  --bs-link-color:#5A3DE6;
  --bs-link-hover-color:#3A2AA8;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary-deep)}
h1,h2,h3,h4,h5{margin:0;font-weight:700;letter-spacing:0;color:var(--text)}
p{margin:0}
ul,ol{margin:0}
button{font:inherit}
[hidden]{display:none !important}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}

.container{
  width:100%;
  max-width:1200px;
  margin-left:auto;
  margin-right:auto;
  padding-left:24px;
  padding-right:24px;
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 22px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1.4;
  text-align:center;
  cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover,.btn-primary:focus{background:var(--primary-deep);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(90,61,230,.28)}
.btn-outline{background:#fff;border-color:var(--line);color:var(--text)}
.btn-outline:hover,.btn-outline:focus{background:var(--tint);border-color:#CFC6FB;color:var(--primary-deep)}
.btn-accent{background:var(--accent);color:#0B201B;font-weight:700}
.btn-accent:hover,.btn-accent:focus{background:#11BE90;color:#0B201B;transform:translateY(-1px)}
.btn-block{width:100%}
.btn svg{transition:transform .2s ease}
.btn:hover svg.arrow{transform:translateX(2px)}

.tag{
  display:inline-flex;
  align-items:center;
  padding:5px 11px;
  border-radius:6px;
  background:var(--tint);
  color:var(--primary);
  font-size:13px;
  font-weight:600;
  line-height:1.5;
}
a.tag:hover{background:#E4DEFC;color:var(--primary-deep)}
.tag-light{background:rgba(255,255,255,.14);color:#fff}

/* ---------- topbar ---------- */
.topbar{
  background:var(--ink);
  border-top:4px solid var(--primary);
  color:rgba(255,255,255,.7);
  font-size:13px;
}
.topbar-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:42px;
}
.topbar-links{display:flex;gap:18px}
.topbar-links a{color:rgba(255,255,255,.78)}
.topbar-links a:hover{color:var(--accent)}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 26px rgba(18,14,36,.10)}
.nav-wrap{
  display:flex;
  align-items:center;
  gap:26px;
  height:80px;
  transition:height .25s ease;
}
.site-header.is-scrolled .nav-wrap{height:68px}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);flex:0 0 auto}
.brand:hover{color:var(--text)}
.brand-mark{flex:0 0 auto}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text b{font-size:16px;font-weight:700}
.brand-text span{font-size:11px;letter-spacing:2px;color:var(--muted)}
.main-nav{display:flex;align-items:center;gap:24px}
.main-nav a{
  position:relative;
  padding:9px 2px;
  font-size:15px;
  font-weight:500;
  color:var(--text);
}
.main-nav a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  background:var(--primary);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .22s ease;
}
.main-nav a:hover::after,.main-nav a:focus-visible::after,.main-nav a.active::after{transform:scaleX(1)}
.main-nav a.active{font-weight:700}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-cat{position:relative}
.nav-cat-btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  min-height:44px;
  padding:0 18px;
  border-radius:999px;
  background:#fff;
  border:1px solid var(--line);
  color:var(--text);
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:border-color .2s ease,background .2s ease,color .2s ease;
}
.nav-cat-btn:hover,.nav-cat:focus-within .nav-cat-btn{border-color:#CFC6FB;color:var(--primary-deep);background:var(--tint)}
.nav-cat-btn svg{transition:transform .2s ease}
.nav-cat:hover .nav-cat-btn svg{transform:rotate(180deg)}
.cat-menu{
  position:absolute;
  top:calc(100% + 12px);
  right:0;
  min-width:280px;
  padding:10px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  box-shadow:var(--sh-2);
  display:grid;
  gap:4px;
  opacity:0;
  visibility:hidden;
  transform:translateY(8px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
}
.nav-cat:hover .cat-menu,.nav-cat:focus-within .cat-menu{opacity:1;visibility:visible;transform:translateY(0)}
.cat-menu a{
  display:block;
  padding:10px 12px;
  border-radius:8px;
  color:var(--text);
  font-size:14px;
  line-height:1.6;
}
.cat-menu a:hover{background:var(--tint);color:var(--primary-deep)}
.cat-menu a b{display:block;font-size:14px;font-weight:600}
.cat-menu a span{display:block;font-size:12px;color:var(--muted)}
.cat-menu a:hover span{color:var(--primary-deep)}
.nav-cta{
  display:inline-flex;
  align-items:center;
  gap:8px;
  min-height:44px;
  padding:0 22px;
  border-radius:999px;
  background:var(--accent);
  color:#0B201B;
  font-size:15px;
  font-weight:700;
  white-space:nowrap;
  transition:background .2s ease,transform .2s ease;
}
.nav-cta:hover{background:#11BE90;color:#0B201B;transform:translateY(-1px)}
.nav-cta svg{transition:transform .2s ease}
.nav-cta:hover svg{transform:translateX(2px)}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  background:#fff;
  padding:0;
  align-items:center;
  justify-content:center;
  cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;
  inset:0;
  z-index:1060;
  background:var(--ink);
  display:flex;
  flex-direction:column;
  transform:translateY(-100%);
  transition:transform .3s ease;
  overflow-y:auto;
}
.drawer.open{transform:translateY(0)}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:18px 20px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.drawer-head .brand-text b{color:#fff}
.drawer-head .brand-text span{color:rgba(255,255,255,.55)}
.drawer-close{
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.2);
  background:transparent;
  color:#fff;
  font-size:22px;
  line-height:1;
  cursor:pointer;
}
.drawer-nav{display:grid;gap:2px;padding:14px 20px}
.drawer-nav a{
  padding:14px 4px;
  border-bottom:1px solid rgba(255,255,255,.08);
  color:#fff;
  font-size:17px;
  font-weight:600;
}
.drawer-nav a:hover{color:var(--accent)}
.drawer-cats{display:grid;grid-template-columns:1fr 1fr;gap:12px;padding:18px 20px 0}
.drawer-cat{
  display:block;
  padding:16px;
  border-radius:var(--r-sm);
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.1);
  color:#fff;
}
.drawer-cat b{display:block;font-size:15px;font-weight:700;margin-bottom:6px}
.drawer-cat span{display:block;font-size:12px;color:rgba(255,255,255,.6);line-height:1.6}
.drawer-cat:hover{background:rgba(90,61,230,.28);border-color:rgba(90,61,230,.5);color:#fff}
.drawer-foot{margin-top:auto;padding:20px;border-top:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.03)}
body.drawer-lock{overflow:hidden}

/* ---------- article hero ---------- */
.article-hero{
  position:relative;
  overflow:hidden;
  padding:44px 0 52px;
  color:#fff;
  background:linear-gradient(180deg,#120E24 0%,#1D1640 100%);
}
.article-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    radial-gradient(1.6px 1.6px at 12% 24%,rgba(255,255,255,.75),transparent 60%),
    radial-gradient(1.4px 1.4px at 32% 68%,rgba(255,255,255,.55),transparent 60%),
    radial-gradient(1.8px 1.8px at 58% 18%,rgba(255,179,71,.75),transparent 60%),
    radial-gradient(1.4px 1.4px at 76% 54%,rgba(255,255,255,.5),transparent 60%),
    radial-gradient(1.6px 1.6px at 90% 32%,rgba(22,211,160,.6),transparent 60%);
  opacity:.9;
  pointer-events:none;
}
.article-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    url("/assets/images/backpic/back-1.webp"),
    repeating-linear-gradient(98deg,rgba(255,255,255,.06) 0 1px,transparent 1px 20px);
  background-size:cover,auto;
  background-position:center,center;
  opacity:.22;
  mix-blend-mode:screen;
  pointer-events:none;
}
.article-hero .container{position:relative;z-index:2}
.breadcrumb-nav{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:rgba(255,255,255,.6);
  margin-bottom:20px;
}
.breadcrumb-nav a{color:rgba(255,255,255,.75)}
.breadcrumb-nav a:hover{color:var(--accent)}
.breadcrumb-nav .sep{color:rgba(255,255,255,.35)}
.breadcrumb-nav .current{
  color:rgba(255,255,255,.55);
  max-width:46ch;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.article-title{
  font-size:clamp(26px,3.4vw,40px);
  line-height:1.3;
  font-weight:700;
  color:#fff;
  max-width:22ch;
}
.meta-bar{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:14px;
  margin-top:22px;
  font-size:13px;
  color:rgba(255,255,255,.72);
}
.meta-bar .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.35)}
.meta-bar time{font-variant-numeric:tabular-nums}
.meta-bar .badge-cat{
  display:inline-flex;
  align-items:center;
  padding:5px 12px;
  border-radius:6px;
  background:rgba(22,211,160,.16);
  color:#7DF3D3;
  font-weight:600;
  font-size:13px;
}

/* ---------- article main ---------- */
.article-main{padding:40px 0 56px}
.toc{
  max-width:780px;
  margin:0 auto 28px;
  padding:18px 22px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  box-shadow:var(--sh-1);
}
.toc h2{
  font-size:14px;
  font-weight:700;
  color:var(--muted);
  letter-spacing:1px;
  margin-bottom:10px;
}
.toc ol{margin:0;padding-left:20px;display:grid;gap:6px;font-size:14px}
.toc a{color:var(--text)}
.toc a:hover{color:var(--primary)}

.article-body{
  max-width:780px;
  margin:0 auto;
  font-size:17px;
  line-height:1.9;
  color:var(--text);
  word-wrap:break-word;
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 18px}
.article-body h2{
  font-size:24px;
  line-height:1.4;
  font-weight:700;
  margin:40px 0 16px;
  padding-left:14px;
  border-left:4px solid var(--primary);
}
.article-body h3{font-size:20px;font-weight:600;margin:30px 0 12px}
.article-body h4{font-size:17px;font-weight:600;margin:22px 0 10px}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px}
.article-body li{margin-bottom:8px}
.article-body blockquote{
  margin:26px 0;
  padding:18px 22px;
  background:var(--tint);
  border-radius:var(--r-sm);
  color:var(--primary-deep);
  font-size:16px;
  line-height:1.85;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{
  border-radius:var(--r-img);
  margin:22px auto;
  max-width:100%;
  height:auto;
}
.article-body figure{margin:24px 0}
.article-body figcaption{
  margin-top:10px;
  font-size:13px;
  color:var(--muted);
  text-align:center;
}
.article-body a{color:var(--primary);border-bottom:1px solid rgba(90,61,230,.35)}
.article-body a:hover{color:var(--primary-deep);border-bottom-color:var(--primary-deep)}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:24px 0;
  font-size:15px;
}
.article-body th,.article-body td{
  border:1px solid var(--line);
  padding:10px 12px;
  text-align:left;
  line-height:1.7;
}
.article-body th{background:var(--tint);color:var(--primary-deep);font-weight:600}
.article-body code{
  background:#F1EEFE;
  color:var(--primary-deep);
  padding:2px 6px;
  border-radius:6px;
  font-size:14px;
}
.article-body pre{
  background:var(--ink);
  color:#EDEAFB;
  padding:18px;
  border-radius:var(--r-img);
  overflow-x:auto;
  font-size:14px;
  line-height:1.7;
}
.article-body pre code{background:transparent;color:inherit;padding:0}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}

.article-empty{
  max-width:780px;
  margin:0 auto;
  padding:52px 30px;
  text-align:center;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
}
.article-empty .empty-icon{
  width:64px;height:64px;
  margin:0 auto 18px;
  border-radius:18px;
  background:var(--tint);
  display:flex;align-items:center;justify-content:center;
}
.article-empty h2{font-size:22px;margin-bottom:10px}
.article-empty p{color:var(--muted);font-size:15px;margin-bottom:22px}

/* ---------- tags ---------- */
.tag-row{
  max-width:780px;
  margin:38px auto 0;
  padding-top:24px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
}
.tag-row .tag-label{font-size:13px;color:var(--muted);margin-right:2px}

/* ---------- related ---------- */
.related-block{
  margin-top:44px;
  padding-top:40px;
  border-top:1px solid var(--line);
}
.section-head{margin-bottom:22px}
.section-head h2{font-size:26px;line-height:1.35}
.section-head p{margin-top:8px;color:var(--muted);font-size:14px}
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.rel-card{
  display:flex;
  flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  box-shadow:var(--sh-1);
  overflow:hidden;
  color:var(--text);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--primary);color:var(--text)}
.rel-card figure{margin:0;aspect-ratio:16/10;overflow:hidden;background:var(--ink)}
.rel-card figure img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.rel-card:hover figure img{transform:scale(1.04)}
.rel-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-body h3{
  font-size:17px;
  line-height:1.5;
  font-weight:600;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.rel-card:hover .rel-body h3{color:var(--primary)}
.rel-meta{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  font-size:13px;
  color:var(--muted);
}
.rel-meta time{font-variant-numeric:tabular-nums}
.rel-arrow{transition:transform .2s ease}
.rel-card:hover .rel-arrow{transform:translateX(3px)}

/* ---------- back actions ---------- */
.back-actions{
  margin-top:40px;
  display:flex;
  flex-wrap:wrap;
  gap:14px;
}

/* ---------- cta bar ---------- */
.cta-section{padding:8px 0 72px}
.cta-bar{
  position:relative;
  overflow:hidden;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding:34px 36px;
  border-radius:var(--r-lg);
  background:linear-gradient(120deg,#120E24 0%,#241B52 100%);
  color:#fff;
  box-shadow:var(--sh-2);
}
.cta-bar::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    radial-gradient(1.6px 1.6px at 18% 30%,rgba(255,255,255,.7),transparent 60%),
    radial-gradient(1.4px 1.4px at 52% 70%,rgba(255,179,71,.7),transparent 60%),
    radial-gradient(1.6px 1.6px at 82% 26%,rgba(22,211,160,.7),transparent 60%),
    repeating-linear-gradient(98deg,rgba(255,255,255,.05) 0 1px,transparent 1px 22px);
  opacity:.85;
  pointer-events:none;
}
.cta-bar > *{position:relative;z-index:2}
.cta-bar h2{font-size:24px;line-height:1.4;color:#fff;max-width:24ch}
.cta-bar p{margin-top:10px;font-size:14px;color:rgba(255,255,255,.7);max-width:52ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

.privacy-fold{
  margin-top:18px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  padding:14px 18px;
}
.privacy-fold summary{
  cursor:pointer;
  font-size:13px;
  color:var(--muted);
  font-weight:600;
  list-style:none;
  display:flex;
  align-items:center;
  gap:8px;
}
.privacy-fold summary::-webkit-details-marker{display:none}
.privacy-fold summary::before{
  content:"";
  width:8px;height:8px;
  border-right:2px solid var(--primary);
  border-bottom:2px solid var(--primary);
  transform:rotate(-45deg);
  transition:transform .2s ease;
}
.privacy-fold[open] summary::before{transform:rotate(45deg)}
.privacy-fold ul{
  margin:12px 0 0;
  padding-left:18px;
  font-size:13px;
  line-height:1.7;
  color:var(--muted);
  display:grid;
  gap:6px;
}
.privacy-fold li b{color:var(--text);font-weight:600}

/* ---------- footer ---------- */
.site-footer{
  position:relative;
  overflow:hidden;
  background:linear-gradient(180deg,#120E24 0%,#1D1640 100%);
  color:rgba(255,255,255,.72);
  padding:64px 0 26px;
}
.site-footer::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    radial-gradient(1.6px 1.6px at 10% 22%,rgba(255,255,255,.6),transparent 60%),
    radial-gradient(1.4px 1.4px at 40% 62%,rgba(255,179,71,.6),transparent 60%),
    radial-gradient(1.6px 1.6px at 72% 30%,rgba(255,255,255,.45),transparent 60%),
    radial-gradient(1.4px 1.4px at 92% 70%,rgba(22,211,160,.55),transparent 60%),
    repeating-linear-gradient(98deg,rgba(255,255,255,.05) 0 1px,transparent 1px 22px);
  opacity:.8;
  pointer-events:none;
}
.site-footer .container{position:relative;z-index:2}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1.2fr 1.3fr;
  gap:36px;
}
.footer-brand .fb-name{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-size:17px;
  font-weight:700;
  margin-bottom:14px;
}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66)}
.fb-points{
  list-style:none;
  margin:16px 0 0;
  padding:0;
  display:grid;
  gap:8px;
  font-size:13px;
  color:rgba(255,255,255,.6);
}
.fb-points li{position:relative;padding-left:16px}
.fb-points li::before{
  content:"";
  position:absolute;
  left:0;top:.72em;
  width:6px;height:6px;
  border-radius:50%;
  background:var(--accent);
}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px}
.footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:10px;font-size:14px}
.footer-col a{color:rgba(255,255,255,.72)}
.footer-col a:hover{color:var(--accent)}
.footer-col .plain{color:rgba(255,255,255,.66)}
.footer-col .small{
  margin-top:16px;
  font-size:12px;
  line-height:1.7;
  color:rgba(255,255,255,.48);
}
.footer-bottom{
  margin-top:42px;
  padding-top:18px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:10px;
  font-size:13px;
  color:rgba(255,255,255,.5);
}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .main-nav{gap:18px}
}
@media (max-width:991.98px){
  .main-nav,.nav-cat{display:none}
  .nav-toggle{display:inline-flex}
  .nav-cta{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .related-grid{grid-template-columns:1fr 1fr}
  .container{padding-left:20px;padding-right:20px}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .topbar-inner{justify-content:center;text-align:center}
  .topbar-links{display:none}
  .nav-wrap{height:66px}
  .site-header.is-scrolled .nav-wrap{height:58px}
  .article-hero{padding:32px 0 40px}
  .article-title{font-size:clamp(22px,6vw,30px);max-width:100%}
  .breadcrumb-nav .current{max-width:100%;white-space:normal}
  .article-main{padding:28px 0 40px}
  .article-body{font-size:16px;line-height:1.85}
  .article-body h2{font-size:21px;margin-top:32px}
  .related-grid{grid-template-columns:1fr}
  .cta-bar{padding:26px 22px}
  .cta-bar h2{font-size:20px}
  .cta-actions,.back-actions{width:100%}
  .cta-actions .btn,.back-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:6px}
}
@media (max-width:575.98px){
  .container{padding-left:16px;padding-right:16px}
  .btn{width:100%}
  .btn-inline{width:auto}
  .article-empty{padding:36px 20px}
  .drawer-cats{grid-template-columns:1fr}
}

/* roulang page: category2 */
:root{
  --ink:#120E24;
  --ink-2:#1D1640;
  --bg:#F6F5FB;
  --surface:#FFFFFF;
  --primary:#5A3DE6;
  --primary-deep:#3A2AA8;
  --primary-soft:#EFEBFF;
  --accent:#16D3A0;
  --accent-deep:#0FAE84;
  --star:#FFB347;
  --text:#1C1A2E;
  --muted:#6B6880;
  --line:#E4E2F2;
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:12px;
  --radius-btn:10px;
  --shadow-1:0 2px 8px rgba(18,14,36,.06);
  --shadow-2:0 14px 34px rgba(18,14,36,.12);
  --space-d:96px;
  --space-m:56px;
  --bs-primary:#5A3DE6;
  --bs-primary-rgb:90,61,230;
  --bs-body-font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --bs-body-color:#1C1A2E;
  --bs-border-color:#E4E2F2;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.85;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;letter-spacing:0;color:var(--text)}
h1{font-size:clamp(30px,4.4vw,52px);line-height:1.25;font-weight:700}
h2{font-size:clamp(24px,2.6vw,34px);line-height:1.35;font-weight:700}
h3{font-size:20px;line-height:1.4;font-weight:600}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
.shell{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:72px 0}
.section--tight{padding:56px 0}
.section--dark{background:linear-gradient(180deg,#120E24 0%,#1D1640 100%);color:#EDEBFA}
.section--dark h2,.section--dark h3{color:#fff}
.section--white{background:var(--surface)}
.divider{height:1px;background:var(--line);border:0;margin:0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--primary);font-weight:600;
  background:var(--primary-soft);border-radius:999px;padding:5px 14px;margin-bottom:16px;
}
.eyebrow i{font-size:12px}
.lead{color:var(--muted);font-size:17px;line-height:1.9;max-width:760px}
.section-head{margin-bottom:40px}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px;max-width:720px}

/* 顶部快捷条 */
.quickbar{
  background:#F1EEFF;
  border-top:4px solid var(--primary);
  font-size:13px;color:#4B4670;
}
.quickbar .shell{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:40px;flex-wrap:wrap}
.quickbar a{color:var(--primary-deep);font-weight:600}
.quickbar a:hover{color:var(--accent-deep)}
.quickbar .qb-links{display:flex;gap:18px;flex-wrap:wrap}

/* 头部导航 */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  transition:padding .25s ease,box-shadow .25s ease;
  padding:18px 0;
  backdrop-filter:saturate(150%) blur(2px);
}
.site-header.is-stuck{padding:6px 0;box-shadow:0 10px 28px rgba(18,14,36,.10)}
.header-inner{display:flex;align-items:center;gap:28px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{flex:none}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text b{font-size:17px;font-weight:700;color:var(--text);letter-spacing:0}
.brand-text i{font-style:normal;font-size:12px;color:var(--muted);letter-spacing:.06em}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.main-nav > a{
  position:relative;padding:10px 14px;font-size:15px;color:#3B3757;border-radius:8px;
  transition:color .2s ease,background .2s ease;
}
.main-nav > a:hover{color:var(--primary);background:#F7F5FF}
.main-nav > a.active{color:var(--text);font-weight:600}
.main-nav > a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--primary);border-radius:2px;
}
.nav-drop{position:relative}
.nav-drop > button{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 14px;font-size:15px;color:#3B3757;background:transparent;
  border:1px solid transparent;border-radius:8px;cursor:pointer;transition:.2s;
}
.nav-drop > button:hover{color:var(--primary);background:#F7F5FF}
.nav-drop i{font-size:11px;transition:transform .2s ease}
.nav-drop:hover i,.nav-drop:focus-within i{transform:rotate(180deg)}
.drop-menu{
  position:absolute;top:calc(100% + 10px);left:0;min-width:260px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  box-shadow:var(--shadow-2);padding:10px;opacity:0;visibility:hidden;transform:translateY(6px);
  transition:.2s ease;z-index:40;
}
.nav-drop:hover .drop-menu,.nav-drop:focus-within .drop-menu{opacity:1;visibility:visible;transform:translateY(0)}
.drop-menu a{
  display:flex;flex-direction:column;gap:2px;padding:10px 12px;border-radius:10px;
  font-size:14px;color:var(--text);transition:.2s;
}
.drop-menu a span{font-size:12px;color:var(--muted)}
.drop-menu a:hover{background:#F7F5FF;color:var(--primary)}
.header-cta{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--accent);color:#08301F;font-weight:600;font-size:15px;
  padding:0 22px;min-height:44px;border-radius:999px;border:0;
  transition:.2s ease;white-space:nowrap;
}
.header-cta:hover{background:var(--accent-deep);color:#04241A;transform:translateY(-1px)}
.header-cta i{transition:transform .2s ease}
.header-cta:hover i{transform:translateX(2px)}
.nav-toggle{
  display:none;width:46px;height:46px;border:1px solid var(--line);border-radius:12px;
  background:#fff;color:var(--text);font-size:18px;align-items:center;justify-content:center;
}
.drawer{
  position:fixed;inset:0;z-index:1060;background:#fff;
  transform:translateX(100%);transition:transform .3s ease;
  display:flex;flex-direction:column;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--line)}
.drawer-close{width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:#fff;color:var(--text);font-size:17px}
.drawer-body{padding:20px;overflow-y:auto;flex:1}
.drawer-body h4{font-size:13px;color:var(--muted);font-weight:600;margin:6px 0 12px}
.drawer-links{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:26px}
.drawer-links a{
  display:block;padding:16px;border:1px solid var(--line);border-radius:var(--radius-md);
  background:#FBFAFF;font-size:15px;font-weight:600;color:var(--text);transition:.2s;
}
.drawer-links a small{display:block;font-size:12px;color:var(--muted);font-weight:400;margin-top:6px;line-height:1.6}
.drawer-links a:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.drawer-plain{display:flex;flex-direction:column;gap:2px}
.drawer-plain a{padding:14px 4px;border-bottom:1px solid var(--line);font-size:16px;color:#3B3757}
.drawer-foot{padding:16px 20px;border-top:1px solid var(--line);background:#fff}
.drawer-foot .btn{width:100%}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:transform .2s ease,background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.btn-solid{background:var(--primary);color:#fff}
.btn-solid:hover{background:var(--primary-deep);color:#fff;transform:translateY(-1px)}
.btn-accent{background:var(--accent);color:#08301F;border-radius:999px;padding:0 26px}
.btn-accent:hover{background:var(--accent-deep);color:#04241A;transform:translateY(-1px)}
.btn-accent i{transition:transform .2s ease}
.btn-accent:hover i{transform:translateX(2px)}
.btn-ghost{background:#fff;color:var(--text);border-color:var(--line)}
.btn-ghost:hover{background:var(--primary-soft);border-color:var(--primary);color:var(--primary-deep)}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px}

/* 页头横幅 */
.page-banner{
  position:relative;overflow:hidden;color:#EDEBFA;
  background:linear-gradient(180deg,#120E24 0%,#1D1640 100%);
  padding:64px 0 60px;
}
.page-banner::before{
  content:"";position:absolute;inset:0;
  background-image:
    radial-gradient(1.6px 1.6px at 12% 24%,rgba(255,255,255,.65) 50%,transparent 52%),
    radial-gradient(1.4px 1.4px at 78% 18%,rgba(255,255,255,.5) 50%,transparent 52%),
    radial-gradient(1.8px 1.8px at 46% 72%,rgba(255,255,255,.42) 50%,transparent 52%),
    radial-gradient(1.3px 1.3px at 88% 66%,rgba(255,255,255,.4) 50%,transparent 52%),
    radial-gradient(1.5px 1.5px at 26% 88%,rgba(255,255,255,.34) 50%,transparent 52%);
  opacity:.9;pointer-events:none;
}
.page-banner::after{
  content:"";position:absolute;left:-10%;right:-10%;top:52%;height:180px;
  background:repeating-linear-gradient(8deg,rgba(22,211,160,.14) 0 1px,transparent 1px 26px);
  opacity:.6;pointer-events:none;
}
.page-banner .shell{position:relative;z-index:2}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(237,235,250,.72);margin-bottom:18px;flex-wrap:wrap}
.crumbs a:hover{color:var(--accent)}
.crumbs span.sep{opacity:.5}
.crumbs .current{color:#fff;font-weight:600}
.banner-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center}
.banner-grid h1{color:#fff;margin-bottom:16px}
.banner-grid .banner-desc{color:rgba(237,235,250,.82);font-size:17px;line-height:1.9;max-width:620px}
.banner-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.tag{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;
  padding:6px 14px;border-radius:999px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);color:#E8E5FA;
}
.tag i{color:var(--accent);font-size:12px}
.banner-actions{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap}
.banner-media{position:relative}
.banner-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-lg);
  border:1px solid rgba(255,255,255,.14);
}
.banner-media .glow-arc{
  position:absolute;inset:auto -6% -12% -6%;height:120px;pointer-events:none;
  border-top:2px solid rgba(22,211,160,.5);border-radius:50% 50% 0 0/120px 120px 0 0;
}

/* 数据卡 */
.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:40px}
.stat-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:26px 24px;box-shadow:var(--shadow-1);transition:.25s ease;
}
.stat-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--primary)}
.stat-card .num{
  font-size:36px;font-weight:700;color:var(--primary-deep);
  font-variant-numeric:tabular-nums;letter-spacing:0;line-height:1.15;
}
.stat-card .num small{font-size:15px;font-weight:600;color:var(--muted);margin-left:6px}
.stat-card .cap{margin-top:10px;font-size:14px;color:var(--muted);line-height:1.75}

/* 要点卡 */
.point-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.point-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:30px 26px;box-shadow:var(--shadow-1);transition:.25s ease;
}
.point-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--primary)}
.point-card .p-ico{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:var(--primary-soft);color:var(--primary);font-size:18px;margin-bottom:18px;
}
.point-card h3{margin-bottom:12px}
.point-card p{color:var(--muted);font-size:15px}
.point-card ul{margin-top:16px;display:flex;flex-direction:column;gap:8px}
.point-card li{position:relative;padding-left:18px;font-size:14px;color:#3B3757}
.point-card li::before{content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:2px;background:var(--accent)}

/* 时间轴 */
.timeline-wrap{position:relative;margin-top:52px}
.timeline{display:grid;grid-template-columns:repeat(5,1fr);gap:24px;position:relative}
.timeline::before{
  content:"";position:absolute;left:4%;right:4%;top:26px;height:2px;
  background:linear-gradient(90deg,rgba(22,211,160,.75),rgba(90,61,230,.45));
  opacity:.55;
}
.tl-item{position:relative;display:flex;flex-direction:column;gap:14px}
.tl-dot{
  position:relative;z-index:2;width:54px;height:54px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:#fff;border:2px solid var(--primary);color:var(--primary-deep);
  font-weight:700;font-size:17px;font-variant-numeric:tabular-nums;
  box-shadow:0 0 0 6px rgba(90,61,230,.08);
}
.tl-item:first-child .tl-dot{border-color:var(--accent);color:#0B7A5D;box-shadow:0 0 0 6px rgba(22,211,160,.14)}
.tl-item h3{font-size:18px;line-height:1.42}
.tl-item p{font-size:14px;color:var(--muted);line-height:1.8}
.tl-item img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-sm);
  border:1px solid var(--line);
}
.tl-item .tl-note{
  font-size:12px;color:var(--muted);padding:8px 12px;border-radius:8px;
  background:#FBFAFF;border:1px dashed var(--line);
}

/* 口径说明 */
.metric-table{
  width:100%;border-collapse:separate;border-spacing:0;background:#fff;
  border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;
  margin-top:34px;font-size:15px;
}
.metric-table thead th{
  background:#F3F1FE;color:#3B3757;font-size:13px;font-weight:600;
  padding:14px 18px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap;
}
.metric-table tbody td{padding:16px 18px;border-bottom:1px solid var(--line);vertical-align:top;color:#3B3757}
.metric-table tbody tr:last-child td{border-bottom:0}
.metric-table tbody tr:hover{background:#FBFAFF}
.metric-table td:first-child{font-weight:600;color:var(--text);white-space:nowrap}
.metric-table .mono{font-variant-numeric:tabular-nums}

/* FAQ */
.faq-acc{margin-top:36px;display:flex;flex-direction:column;gap:14px}
.faq-acc .accordion-item{
  border:1px solid var(--line);border-radius:var(--radius-md);overflow:hidden;
  background:#fff;box-shadow:var(--shadow-1);
}
.faq-acc .accordion-button{
  display:flex;align-items:center;gap:14px;width:100%;
  min-height:52px;padding:14px 20px;font-size:17px;font-weight:600;color:var(--text);
  background:#fff;border:0;text-align:left;
}
.faq-acc .accordion-button:not(.collapsed){background:#FBFAFF;color:var(--primary-deep)}
.faq-acc .accordion-button:focus{box-shadow:none;outline:2px solid var(--primary);outline-offset:-2px}
.faq-acc .accordion-button::after{
  content:"\f054";font-family:"Font Awesome 6 Free";font-weight:900;font-size:12px;
  width:auto;height:auto;background-image:none;color:var(--muted);
  transition:transform .25s ease;margin-left:auto;
}
.faq-acc .accordion-button:not(.collapsed)::after{transform:rotate(90deg);color:var(--primary)}
.q-mark{
  flex:none;width:30px;height:30px;border-radius:8px;display:flex;align-items:center;justify-content:center;
  background:var(--primary-soft);color:var(--primary);font-size:14px;font-weight:700;
}
.faq-acc .accordion-body{padding:4px 20px 22px 64px;color:#3B3757;font-size:15px;line-height:1.9}

/* CTA 条 */
.cta-bar{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  background:linear-gradient(120deg,#1D1640 0%,#120E24 100%);
  border:1px solid rgba(255,255,255,.10);
  padding:40px 44px;color:#EDEBFA;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-bar::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(1.5px 1.5px at 18% 30%,rgba(255,255,255,.55) 50%,transparent 52%),
    radial-gradient(1.3px 1.3px at 72% 22%,rgba(255,255,255,.42) 50%,transparent 52%),
    radial-gradient(1.6px 1.6px at 88% 78%,rgba(255,255,255,.36) 50%,transparent 52%);
}
.cta-bar > *{position:relative;z-index:2}
.cta-bar h2{font-size:26px;margin-bottom:10px}
.cta-bar p{color:rgba(237,235,250,.78);font-size:15px;max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* 隐私折叠 */
.privacy{margin-top:22px;border:1px solid var(--line);border-radius:var(--radius-md);background:#fff;overflow:hidden}
.privacy-toggle{
  width:100%;display:flex;align-items:center;gap:10px;justify-content:space-between;
  padding:14px 20px;background:#fff;border:0;font-size:14px;font-weight:600;color:#3B3757;
}
.privacy-toggle i{font-size:12px;color:var(--muted);transition:transform .2s ease}
.privacy-toggle[aria-expanded="true"] i{transform:rotate(90deg)}
.privacy-body{padding:2px 20px 20px;font-size:13px;color:var(--muted);line-height:1.7}
.privacy-body ul{display:flex;flex-direction:column;gap:8px;margin-top:8px}
.privacy-body li{position:relative;padding-left:16px}
.privacy-body li::before{content:"";position:absolute;left:0;top:9px;width:5px;height:5px;border-radius:50%;background:var(--primary)}

/* 表单弹层 */
.modal-content{border:0;border-radius:16px;overflow:hidden;box-shadow:0 24px 60px rgba(18,14,36,.32)}
.modal-header{
  position:relative;border:0;padding:24px 28px;color:#fff;
  background:linear-gradient(180deg,#120E24 0%,#1D1640 100%);
}
.modal-header::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(1.4px 1.4px at 14% 34%,rgba(255,255,255,.6) 50%,transparent 52%),
    radial-gradient(1.2px 1.2px at 62% 26%,rgba(255,255,255,.45) 50%,transparent 52%),
    radial-gradient(1.4px 1.4px at 86% 70%,rgba(255,255,255,.4) 50%,transparent 52%);
}
.modal-header h5{position:relative;z-index:2;font-size:20px;font-weight:700;margin:0}
.modal-header p{position:relative;z-index:2;font-size:13px;color:rgba(237,235,250,.75);margin-top:8px}
.modal-body{padding:26px 28px;background:#fff}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;color:#3B3757;margin-bottom:8px}
.field .form-control,.field .form-select{
  min-height:46px;border-radius:10px;border:1px solid var(--line);
  font-size:15px;color:var(--text);box-shadow:none;
}
.field .form-control:focus,.field .form-select:focus{
  border-color:var(--primary);box-shadow:0 0 0 3px rgba(90,61,230,.18);
}
.field.is-error .form-control,.field.is-error .form-select{border-color:#D6455B}
.field .err{display:none;font-size:12px;color:#D6455B;margin-top:6px}
.field.is-error .err{display:block}
.check-row{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--muted);line-height:1.7}
.check-row input{margin-top:5px;accent-color:var(--primary)}
.modal-footer{border:0;padding:0 28px 26px;background:#fff}
.modal-footer .btn{width:100%}
.modal-backdrop.show{opacity:.6;--bs-backdrop-bg:#120E24;backdrop-filter:blur(4px)}
.modal-note{font-size:12px;color:var(--muted);text-align:center;margin-top:12px}

/* 页脚 */
.site-footer{
  background:linear-gradient(180deg,#120E24 0%,#1D1640 100%);
  color:#C9C5E2;padding:64px 0 26px;position:relative;overflow:hidden;
}
.site-footer::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(1.5px 1.5px at 10% 26%,rgba(255,255,255,.45) 50%,transparent 52%),
    radial-gradient(1.3px 1.3px at 46% 14%,rgba(255,255,255,.35) 50%,transparent 52%),
    radial-gradient(1.5px 1.5px at 82% 42%,rgba(255,255,255,.32) 50%,transparent 52%);
}
.site-footer .shell{position:relative;z-index:2}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1.2fr 1.3fr;gap:36px}
.footer-brand .fb-name{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .fb-name span{font-size:17px;font-weight:700;color:#fff}
.footer-brand p{font-size:14px;line-height:1.85;color:#B3AEDA;max-width:340px}
.fb-points{margin-top:18px;display:flex;flex-direction:column;gap:8px}
.fb-points li{position:relative;padding-left:16px;font-size:13px;color:#9F9AC4}
.fb-points li::before{content:"";position:absolute;left:0;top:9px;width:5px;height:5px;border-radius:50%;background:var(--accent)}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:#B3AEDA;transition:.2s}
.footer-col a:hover{color:var(--accent)}
.footer-col .plain{font-size:14px;color:#B3AEDA}
.footer-col .small{margin-top:14px;font-size:12px;color:#8E89B4;line-height:1.75}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.10);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8E89B4;
}

/* 响应式 */
@media (max-width:1200px){
  .shell{padding:0 22px}
}
@media (max-width:992px){
  .main-nav{display:none}
  .header-cta{display:none}
  .nav-toggle{display:flex;margin-left:auto}
  .banner-grid{grid-template-columns:1fr;gap:36px}
  .banner-media img{aspect-ratio:16/9}
  .stat-grid{grid-template-columns:1fr 1fr}
  .point-grid{grid-template-columns:1fr}
  .timeline{grid-template-columns:1fr 1fr;gap:26px}
  .timeline::before{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .cta-bar{padding:34px 28px}
}
@media (max-width:768px){
  .section{padding:56px 0}
  .section--tight{padding:44px 0}
  .page-banner{padding:46px 0}
  .stat-grid{grid-template-columns:1fr}
  .timeline{grid-template-columns:1fr}
  .metric-table{font-size:14px}
  .metric-table thead{display:none}
  .metric-table tbody td{display:block;border-bottom:0;padding:10px 18px}
  .metric-table tbody tr{display:block;border-bottom:1px solid var(--line);padding:8px 0}
  .faq-acc .accordion-body{padding-left:22px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:576px){
  .shell{padding:0 16px}
  h3{font-size:19px}
  .btn{width:100%}
  .banner-actions .btn,.cta-actions .btn{width:100%}
  .header-cta{width:auto}
  .stat-card .num{font-size:30px}
  .cta-bar h2{font-size:22px}
}

/* roulang page: category3 */
:root{
  --ink:#120E24;
  --ink-2:#1D1640;
  --bg:#F6F5FB;
  --surface:#FFFFFF;
  --primary:#5A3DE6;
  --primary-deep:#3A2AA8;
  --primary-soft:#EFEBFE;
  --accent:#16D3A0;
  --accent-deep:#0FB488;
  --star:#FFB347;
  --text:#1C1A2E;
  --muted:#6B6880;
  --line:#E4E2F2;
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:12px;
  --radius-btn:10px;
  --shadow-1:0 2px 8px rgba(18,14,36,.06);
  --shadow-2:0 14px 34px rgba(18,14,36,.12);
  --bs-primary:#5A3DE6;
  --bs-primary-rgb:90,61,230;
  --bs-body-color:#1C1A2E;
  --bs-body-bg:#F6F5FB;
  --bs-border-color:#E4E2F2;
  --bs-border-radius:12px;
  --bs-link-color:#5A3DE6;
  --bs-link-hover-color:#3A2AA8;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  letter-spacing:0;
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden;}
img{max-width:100%;height:auto;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease;}
a:hover{color:var(--primary-deep);}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:0;color:var(--text);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}

/* ---------- 顶部强调条 ---------- */
.topbar{
  border-top:4px solid var(--accent);
  background:linear-gradient(90deg,#120E24,#1D1640);
  color:rgba(255,255,255,.78);
  font-size:13px;
}
.topbar-inner{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:40px;flex-wrap:wrap;
}
.topbar-links{display:flex;gap:18px;}
.topbar-links a{color:rgba(255,255,255,.82);}
.topbar-links a:hover{color:var(--accent);}
.topbar-marks{color:rgba(255,255,255,.62);}
.topbar-marks b{color:var(--star);font-weight:600;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-stuck{box-shadow:0 10px 28px rgba(18,14,36,.10);}
.nav-inner{
  display:flex;align-items:center;gap:26px;
  min-height:78px;
  transition:min-height .25s ease;
}
.site-header.is-stuck .nav-inner{min-height:66px;}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand-mark{flex:0 0 auto;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:17px;font-weight:700;color:var(--text);}
.brand-text em{font-style:normal;font-size:12px;color:var(--muted);letter-spacing:2px;}
.main-nav{
  display:flex;align-items:center;gap:6px;
  margin-left:auto;
}
.main-nav a{
  position:relative;
  padding:8px 14px;
  font-size:15px;
  color:var(--text);
  border-radius:8px;
  white-space:nowrap;
}
.main-nav a:hover{color:var(--primary-deep);background:#F7F5FF;}
.main-nav a.active{color:var(--text);font-weight:600;}
.main-nav a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;
  height:2px;background:var(--primary);border-radius:2px;
}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;
  min-height:44px;padding:0 22px;
  background:var(--accent);color:#08291F;
  font-size:15px;font-weight:700;border-radius:999px;border:1px solid var(--accent);
  transition:transform .2s ease,background-color .2s ease,box-shadow .2s ease;
}
.nav-cta:hover{background:var(--accent-deep);color:#042018;box-shadow:0 10px 24px rgba(22,211,160,.32);}
.nav-cta .arw{transition:transform .2s ease;}
.nav-cta:hover .arw{transform:translateX(2px);}
.nav-toggle{
  display:none;
  width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line);background:#fff;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
  cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;}

/* ---------- 抽屉 ---------- */
.drawer{
  position:fixed;inset:0;z-index:1200;
  background:linear-gradient(180deg,#120E24,#1D1640);
  display:flex;flex-direction:column;
  transform:translateY(-100%);visibility:hidden;
  transition:transform .3s ease,visibility .3s ease;
}
.drawer.open{transform:translateY(0);visibility:visible;}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 20px;border-bottom:1px solid rgba(255,255,255,.12);
}
.drawer-head span{color:#fff;font-size:16px;font-weight:700;}
.drawer-close{
  width:40px;height:40px;border-radius:10px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);
  color:#fff;font-size:20px;line-height:1;cursor:pointer;
}
.drawer-body{padding:20px;overflow-y:auto;flex:1 1 auto;}
.drawer-home{
  display:block;padding:14px 16px;border-radius:14px;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
  color:#fff;font-weight:600;margin-bottom:16px;
}
.drawer-label{font-size:12px;color:rgba(255,255,255,.55);letter-spacing:2px;margin-bottom:10px;}
.drawer-cats{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.cat-card{
  display:flex;flex-direction:column;gap:6px;
  padding:16px;border-radius:14px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.14);
  transition:background-color .2s ease,transform .2s ease,border-color .2s ease;
}
.cat-card:hover{background:rgba(90,61,230,.28);border-color:rgba(22,211,160,.5);transform:translateY(-2px);}
.cat-card strong{color:#fff;font-size:15px;}
.cat-card em{font-style:normal;font-size:12px;color:rgba(255,255,255,.62);line-height:1.6;}
.cat-card.is-current{border-color:var(--accent);}
.drawer-foot{
  padding:16px 20px 24px;border-top:1px solid rgba(255,255,255,.12);
  background:rgba(0,0,0,.18);
}
.drawer-foot .nav-cta{width:100%;justify-content:center;}

/* ---------- 通用按钮 ---------- */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 24px;font-size:15px;font-weight:600;
  border-radius:var(--radius-btn);border:1px solid transparent;
  cursor:pointer;transition:transform .2s ease,background-color .2s ease,box-shadow .2s ease,border-color .2s ease,color .2s ease;
}
.btn-solid{background:var(--primary);color:#fff;border-color:var(--primary);}
.btn-solid:hover{background:var(--primary-deep);border-color:var(--primary-deep);color:#fff;transform:translateY(-1px);}
.btn-accent{background:var(--accent);color:#08291F;border-color:var(--accent);}
.btn-accent:hover{background:var(--accent-deep);border-color:var(--accent-deep);color:#042018;transform:translateY(-1px);}
.btn-accent .arw{transition:transform .2s ease;}
.btn-accent:hover .arw{transform:translateX(2px);}
.btn-ghost{background:#fff;color:var(--text);border-color:var(--line);}
.btn-ghost:hover{background:#F1EEFE;border-color:#D6CFF9;color:var(--primary-deep);}
.btn-ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.36);}
.btn-ghost-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.6);}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--primary);
}
.text-link .arw{transition:transform .2s ease;}
.text-link:hover .arw{transform:translateX(3px);}

/* ---------- 页头横幅 ---------- */
.page-hero{
  position:relative;
  background:linear-gradient(180deg,#120E24 0%,#1D1640 100%);
  color:#fff;
  padding:64px 0 72px;
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:
    radial-gradient(2px 2px at 12% 24%,rgba(255,255,255,.75),transparent 60%),
    radial-gradient(1.6px 1.6px at 32% 62%,rgba(255,255,255,.55),transparent 60%),
    radial-gradient(1.8px 1.8px at 58% 18%,rgba(255,179,71,.65),transparent 60%),
    radial-gradient(1.4px 1.4px at 78% 48%,rgba(255,255,255,.5),transparent 60%),
    radial-gradient(1.6px 1.6px at 92% 76%,rgba(255,255,255,.42),transparent 60%),
    repeating-linear-gradient(98deg,rgba(255,255,255,.05) 0 1px,transparent 1px 30px);
  pointer-events:none;
}
.page-hero::after{
  content:"";position:absolute;left:-10%;right:-10%;bottom:-70px;height:180px;
  background:radial-gradient(60% 100% at 50% 100%,rgba(22,211,160,.22),transparent 70%);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;}
.crumbs{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.62);margin-bottom:26px;
}
.crumbs a{color:rgba(255,255,255,.78);}
.crumbs a:hover{color:var(--accent);}
.crumbs .cur{color:#fff;}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:48px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:2px;
  color:var(--accent);margin-bottom:16px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);border-radius:2px;}
.page-hero h1{
  font-size:clamp(30px,4.4vw,52px);
  line-height:1.25;font-weight:700;color:#fff;
  margin-bottom:18px;
}
.hero-lead{
  font-size:17px;line-height:1.9;color:rgba(255,255,255,.78);
  max-width:560px;margin-bottom:28px;
}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:26px;}
.hero-marks{display:flex;flex-wrap:wrap;gap:12px 26px;}
.hero-marks li{
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:rgba(255,255,255,.72);
}
.hero-marks li::before{
  content:"";width:6px;height:6px;border-radius:50%;
  background:var(--star);flex:0 0 auto;
}
.hero-media{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid rgba(255,255,255,.16);
  box-shadow:0 24px 60px rgba(0,0,0,.38);
  aspect-ratio:16/11;background:#0C0A1C;
}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-media figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:14px 18px;font-size:12px;color:rgba(255,255,255,.8);
  background:linear-gradient(180deg,transparent,rgba(12,10,28,.86));
}

/* ---------- 板块 ---------- */
.sec{padding:72px 0;}
.sec-head{max-width:760px;margin-bottom:38px;}
.sec-head h2{font-size:clamp(26px,3vw,34px);line-height:1.35;margin-bottom:14px;}
.sec-head p{color:var(--muted);font-size:16px;}
.sec-tint{background:linear-gradient(180deg,#F1EEFF 0%,#F6F5FB 100%);}
.sec-white{background:#fff;}
.sec-line{border-top:1px solid var(--line);}

/* ---------- 对比表 ---------- */
.table-wrap{margin-top:8px;}
.cmp-table{
  width:100%;border-collapse:separate;border-spacing:0;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-1);
}
.cmp-table caption{
  caption-side:top;text-align:left;padding:0 0 14px;
  font-size:13px;color:var(--muted);
}
.cmp-table th{
  background:linear-gradient(180deg,#1D1640,#171034);
  color:#fff;font-size:14px;font-weight:600;
  text-align:left;padding:16px 18px;white-space:nowrap;
  border-bottom:1px solid rgba(255,255,255,.1);
}
.cmp-table td{
  padding:18px;font-size:14.5px;color:var(--muted);
  border-top:1px solid var(--line);vertical-align:top;line-height:1.8;
}
.cmp-table tbody tr:hover td{background:#FBFAFF;}
.cmp-table .way{font-weight:600;color:var(--text);font-size:15px;display:block;}
.cmp-table .way-sub{font-size:12.5px;color:var(--muted);display:block;margin-top:4px;}
.tag{
  display:inline-block;padding:2px 10px;border-radius:6px;
  background:var(--primary-soft);color:var(--primary-deep);
  font-size:12px;font-weight:600;line-height:1.7;
}
.tag-gold{background:#FFF3DF;color:#8A5A12;}
.table-note{
  margin-top:14px;font-size:12.5px;color:var(--muted);
}
.table-note b{color:var(--text);font-weight:600;}

/* ---------- 清单块 ---------- */
.split{display:grid;grid-template-columns:.92fr 1.08fr;gap:52px;align-items:start;}
.split-media{
  border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow-1);aspect-ratio:4/3;background:#EDEBF7;
}
.split-media img{width:100%;height:100%;object-fit:cover;}
.split-body h2{font-size:clamp(26px,3vw,34px);line-height:1.35;margin-bottom:14px;}
.split-body > p{color:var(--muted);margin-bottom:26px;}
.check-list{display:grid;gap:14px;}
.check-list li{
  display:flex;gap:14px;padding:16px 18px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.check-list li:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#D6CFF9;}
.check-list .ck{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;
  background:var(--primary-soft);color:var(--primary-deep);
  font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;
  margin-top:2px;
}
.check-list strong{display:block;font-size:15.5px;margin-bottom:2px;}
.check-list span.txt{font-size:14px;color:var(--muted);}

/* ---------- 节奏卡 ---------- */
.rhythm-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.rhythm-card{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:26px 24px 24px;
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.rhythm-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#D6CFF9;}
.rhythm-card::before{
  content:"";position:absolute;left:0;top:26px;bottom:26px;width:3px;
  background:var(--accent);border-radius:3px;
}
.rhythm-num{
  font-size:13px;font-weight:700;color:var(--primary);letter-spacing:2px;
  font-variant-numeric:tabular-nums;display:block;margin-bottom:10px;
}
.rhythm-card h3{font-size:20px;line-height:1.4;margin-bottom:10px;}
.rhythm-card p{font-size:14.5px;color:var(--muted);margin-bottom:16px;}
.rhythm-figure{
  margin-top:26px;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line);aspect-ratio:21/7;background:#EDEBF7;
}
.rhythm-figure img{width:100%;height:100%;object-fit:cover;}

/* ---------- FAQ ---------- */
.acc .accordion-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  overflow:hidden;margin-bottom:12px;
}
.acc .accordion-button{
  position:relative;
  min-height:52px;padding:16px 54px 16px 60px;
  font-size:17px;font-weight:600;color:var(--text);
  background:#fff;box-shadow:none;
}
.acc .accordion-button:not(.collapsed){background:#FBFAFF;color:var(--primary-deep);}
.acc .accordion-button:focus{box-shadow:none;outline:2px solid var(--primary);outline-offset:-2px;}
.acc .accordion-button::before{
  content:"Q";position:absolute;left:18px;top:50%;transform:translateY(-50%);
  width:26px;height:26px;border-radius:8px;
  background:var(--primary-soft);color:var(--primary-deep);
  font-size:13px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.acc .accordion-button::after{
  background-image:none;
  content:"";width:9px;height:9px;margin-left:auto;
  border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);
  transform:rotate(45deg);transition:transform .22s ease,border-color .22s ease;
}
.acc .accordion-button:not(.collapsed)::after{
  transform:rotate(-45deg);border-color:var(--primary);
}
.acc .accordion-body{
  padding:6px 24px 22px 60px;font-size:15.5px;line-height:1.9;color:var(--muted);
}
.acc .accordion-body b{color:var(--text);font-weight:600;}

/* ---------- CTA 条 ---------- */
.cta-strip{
  position:relative;
  background:linear-gradient(180deg,#120E24,#1D1640);
  color:#fff;padding:60px 0 48px;overflow:hidden;
}
.cta-strip::before{
  content:"";position:absolute;inset:0;
  background-image:
    radial-gradient(2px 2px at 18% 30%,rgba(255,255,255,.7),transparent 60%),
    radial-gradient(1.5px 1.5px at 46% 66%,rgba(255,255,255,.5),transparent 60%),
    radial-gradient(1.8px 1.8px at 72% 26%,rgba(255,179,71,.6),transparent 60%),
    radial-gradient(1.4px 1.4px at 88% 62%,rgba(255,255,255,.45),transparent 60%),
    repeating-linear-gradient(98deg,rgba(255,255,255,.045) 0 1px,transparent 1px 32px);
  pointer-events:none;
}
.cta-strip .container{position:relative;z-index:2;}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:28px 30px;border-radius:var(--radius-lg);
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.14);
  flex-wrap:wrap;
}
.cta-inner h2{font-size:clamp(22px,2.6vw,30px);color:#fff;line-height:1.4;margin-bottom:8px;}
.cta-inner p{font-size:14.5px;color:rgba(255,255,255,.72);max-width:620px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.privacy-fold{
  margin-top:22px;border:1px solid rgba(255,255,255,.14);border-radius:var(--radius-md);
  background:rgba(255,255,255,.03);
}
.privacy-fold summary{
  cursor:pointer;padding:14px 20px;font-size:13px;color:rgba(255,255,255,.75);
  list-style:none;
}
.privacy-fold summary::-webkit-details-marker{display:none;}
.privacy-fold summary::after{content:"＋";float:right;color:var(--accent);}
.privacy-fold[open] summary::after{content:"－";}
.privacy-list{padding:0 20px 18px;display:grid;gap:8px;}
.privacy-list li{
  font-size:13px;line-height:1.7;color:rgba(255,255,255,.6);
}
.privacy-list b{color:rgba(255,255,255,.86);font-weight:600;}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  background:linear-gradient(180deg,#120E24,#1D1640);
  color:rgba(255,255,255,.7);
  padding:60px 0 26px;overflow:hidden;
}
.site-footer::before{
  content:"";position:absolute;inset:0;
  background-image:
    radial-gradient(1.8px 1.8px at 14% 22%,rgba(255,255,255,.55),transparent 60%),
    radial-gradient(1.4px 1.4px at 62% 34%,rgba(255,255,255,.4),transparent 60%),
    radial-gradient(1.6px 1.6px at 84% 70%,rgba(255,179,71,.5),transparent 60%);
  pointer-events:none;
}
.site-footer .container{position:relative;z-index:2;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .fb-name{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand .fb-name span{color:#fff;font-size:17px;font-weight:700;}
.footer-brand p{font-size:13.5px;line-height:1.9;color:rgba(255,255,255,.6);margin-bottom:16px;}
.fb-points{display:grid;gap:8px;}
.fb-points li{
  position:relative;padding-left:16px;font-size:13px;color:rgba(255,255,255,.58);
}
.fb-points li::before{
  content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:50%;
  background:var(--accent);
}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.68);}
.footer-col a:hover{color:var(--accent);}
.footer-col .plain{font-size:14px;color:rgba(255,255,255,.68);}
.footer-col .small{font-size:12.5px;line-height:1.8;color:rgba(255,255,255,.5);margin-top:14px;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:44px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:12.5px;color:rgba(255,255,255,.5);
}

/* ---------- 弹层 ---------- */
.modal-backdrop.show{opacity:.6;background:#120E24;}
.ask-modal{
  border:none;border-radius:16px;overflow:hidden;
  background:#fff;box-shadow:0 30px 70px rgba(18,14,36,.35);
}
.ask-head{
  position:relative;
  background:linear-gradient(180deg,#120E24,#1D1640);
  border:none;padding:24px 26px;
}
.ask-head::before{
  content:"";position:absolute;inset:0;
  background-image:
    radial-gradient(2px 2px at 16% 30%,rgba(255,255,255,.7),transparent 60%),
    radial-gradient(1.4px 1.4px at 68% 26%,rgba(255,255,255,.5),transparent 60%),
    radial-gradient(1.6px 1.6px at 86% 66%,rgba(255,179,71,.6),transparent 60%);
  pointer-events:none;
}
.ask-head > *{position:relative;z-index:2;}
.ask-title{font-size:20px;color:#fff;margin-bottom:6px;}
.ask-sub{font-size:13px;color:rgba(255,255,255,.68);line-height:1.8;}
.btn-close-x{
  position:absolute;right:16px;top:16px;z-index:3;
  width:34px;height:34px;border-radius:10px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);
  color:#fff;font-size:18px;line-height:1;cursor:pointer;
}
.btn-close-x:hover{background:rgba(255,255,255,.2);}
.ask-body{padding:24px 26px 26px;}
.fld{margin-bottom:16px;}
.fld label{display:block;font-size:13.5px;font-weight:600;margin-bottom:8px;color:var(--text);}
.fld-input{
  width:100%;min-height:46px;padding:10px 14px;
  font-size:15px;font-family:inherit;color:var(--text);
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-btn);
  transition:border-color .2s ease,box-shadow .2s ease;
}
textarea.fld-input{min-height:96px;resize:vertical;line-height:1.7;}
.fld-input::placeholder{color:#A5A2B8;}
.fld-input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(90,61,230,.18);}
.fld-err{display:none;font-size:12px;color:#D93F4C;margin-top:6px;}
.fld.is-invalid .fld-input{border-color:#D93F4C;box-shadow:0 0 0 3px rgba(217,63,76,.14);}
.agree-row{display:flex;gap:10px;align-items:flex-start;margin-bottom:6px;}
.agree-row input{width:18px;height:18px;margin-top:3px;accent-color:var(--primary);flex:0 0 auto;}
.agree-row label{font-size:13px;color:var(--muted);line-height:1.7;font-weight:400;margin:0;}
.ask-submit{width:100%;margin-top:8px;}
.form-done{
  display:none;margin-top:14px;padding:12px 14px;border-radius:var(--radius-btn);
  background:#E9FBF5;border:1px solid #B7EFDD;color:#0B7A5E;font-size:13.5px;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .main-nav a{padding:8px 10px;font-size:14.5px;}
  .nav-inner{gap:18px;}
}
@media (max-width:991.98px){
  .main-nav,.nav-cta{display:none;}
  .nav-toggle{display:flex;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-media{order:2;aspect-ratio:16/10;}
  .split{grid-template-columns:1fr;gap:32px;}
  .rhythm-grid{grid-template-columns:1fr;gap:16px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .sec{padding:56px 0;}
}
@media (max-width:767.98px){
  .container{padding-left:16px;padding-right:16px;}
  .page-hero{padding:44px 0 52px;}
  .hero-lead{font-size:15.5px;}
  .sec{padding:48px 0;}
  .topbar-marks{display:none;}
  .cmp-table{border-radius:var(--radius-md);}
  .cmp-table thead{display:none;}
  .cmp-table,.cmp-table tbody,.cmp-table tr,.cmp-table td{display:block;width:100%;}
  .cmp-table tr{border-top:1px solid var(--line);padding:6px 0;}
  .cmp-table tr:first-child{border-top:0;}
  .cmp-table td{border-top:0;padding:9px 16px;display:flex;gap:12px;}
  .cmp-table td::before{
    content:attr(data-label);flex:0 0 84px;color:#8C89A0;font-size:12.5px;
  }
  .acc .accordion-button{padding:14px 44px 14px 54px;font-size:16px;}
  .acc .accordion-body{padding:4px 18px 20px 54px;font-size:15px;}
  .cta-inner{padding:22px;}
  .rhythm-figure{aspect-ratio:16/9;}
}
@media (max-width:575.98px){
  .brand-text strong{font-size:15.5px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn-x{width:100%;}
  .cta-actions{flex-direction:column;align-items:stretch;}
  .cta-actions .btn-x{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .page-hero h1{font-size:30px;}
  .sec-head h2,.split-body h2{font-size:24px;}
  .drawer-cats{grid-template-columns:1fr;}
}