/* roulang page: index */
:root{
  --brand:#5B2BE0;
  --brand-dark:#4720BE;
  --accent:#C6F24E;
  --alert:#FF6B3D;
  --ink:#14121C;
  --ink-2:#3A3550;
  --ink-3:#6C6880;
  --line:#E6E4EF;
  --bg:#F6F5FB;
  --card:#FFFFFF;
  --soft:#F1EDFF;
  --r-card:16px;
  --r-sm:10px;
  --r-btn:12px;
  --r-img:14px;
  --sh-1:0 1px 2px rgba(20,18,28,.06),0 8px 24px rgba(20,18,28,.06);
  --sh-2:0 12px 32px rgba(91,43,224,.16);
  --container:1200px;
  --t:240ms;
  --tf:200ms;
  --mono:ui-monospace,SFMono-Regular,"DIN Alternate",Menlo,Consolas,"Courier New",monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color var(--t) ease;}
a:hover{color:var(--accent);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:3px;}
h1,h2,h3,h4{color:var(--ink);margin:0;font-weight:700;line-height:1.25;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.container-xl{width:100%;max-width:var(--container);margin:0 auto;padding-left:24px;padding-right:24px;}
@media (min-width:1400px){.container-xl{max-width:1320px;}}

/* ===== 按钮体系 ===== */
.btn-brand,.btn-ghost,.btn-line,.btn-arrow{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:15px;font-weight:600;border-radius:var(--r-btn);padding:12px 22px;border:1px solid transparent;cursor:pointer;transition:transform var(--t) ease,background var(--t) ease,box-shadow var(--t) ease,color var(--t) ease,border-color var(--t) ease;line-height:1.2;}
.btn-brand{background:var(--brand);color:#fff;}
.btn-brand:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);text-decoration:none;}
.btn-brand:active{transform:translateY(0);box-shadow:none;}
.btn-brand[disabled],.btn-brand.is-disabled{opacity:.45;pointer-events:none;}
.btn-line{background:transparent;border-color:var(--line);color:var(--ink);}
.btn-line:hover{border-color:var(--brand);color:var(--brand);background:var(--soft);text-decoration:none;}
.btn-line:active{background:#E7E0FF;}
.btn-ghost{background:transparent;color:var(--ink);padding:10px 4px;}
.btn-ghost:hover{color:var(--brand);text-decoration:none;}
.btn-arrow{background:transparent;color:var(--brand);padding:8px 0;font-weight:600;}
.btn-arrow i{transition:transform var(--t) ease,color var(--t) ease;}
.btn-arrow:hover{color:var(--brand);text-decoration:none;}
.btn-arrow:hover i{transform:translateX(4px);color:var(--accent);}
.btn-sm{padding:9px 16px;font-size:14px;}
.hero .btn-line{border-color:rgba(255,255,255,.35);color:#fff;}
.hero .btn-line:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff;}

/* ===== 头部导航 ===== */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1040;}
.nav-panel{
  margin-top:12px;height:72px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:0 16px 0 18px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);transition:background var(--t) ease,border-color var(--t) ease,box-shadow var(--t) ease;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand:hover{text-decoration:none;}
.brand-mark{display:grid;grid-template-columns:repeat(2,7px);grid-template-rows:repeat(2,7px);gap:2px;}
.brand-mark i{display:block;border-radius:2px;background:var(--brand);}
.brand-mark i:nth-child(2){background:var(--accent);}
.brand-mark i:nth-child(3){background:var(--accent);}
.brand-mark i:nth-child(4){background:var(--brand);}
.brand-text{font-size:17px;font-weight:800;color:var(--ink);letter-spacing:.01em;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:6px;flex:1 1 auto;justify-content:center;}
.nav-chip{display:inline-flex;align-items:center;gap:6px;padding:9px 14px;border-radius:var(--r-sm);font-size:14px;font-weight:600;color:var(--ink-2);transition:background var(--t) ease,color var(--t) ease;}
.nav-chip i{font-size:13px;color:var(--brand);}
.nav-chip:hover{background:var(--soft);color:var(--brand);text-decoration:none;}
.nav-chip.active{background:var(--brand);color:#fff;box-shadow:var(--sh-2);}
.nav-chip.active i{color:var(--accent);}
.nav-right{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);background:transparent;border-radius:var(--r-sm);color:var(--ink);font-size:17px;}
.nav-panel.is-dark{background:var(--ink);border-color:rgba(255,255,255,.08);box-shadow:none;}
.nav-panel.is-dark .brand-text{color:#fff;}
.nav-panel.is-dark .nav-chip{color:rgba(255,255,255,.76);}
.nav-panel.is-dark .nav-chip:hover{background:rgba(255,255,255,.09);color:#fff;}
.nav-panel.is-dark .nav-chip.active{background:var(--brand);color:#fff;}
.nav-panel.is-dark .nav-toggle{border-color:rgba(255,255,255,.22);color:#fff;}
.offcanvas{background:var(--bg);}
.offcanvas .nav-chip{width:100%;justify-content:flex-start;background:var(--card);border:1px solid var(--line);border-radius:var(--r-sm);padding:14px 16px;font-size:15px;}
.offcanvas .nav-chip.active{background:var(--brand);color:#fff;border-color:var(--brand);}

/* ===== Hero ===== */
.hero{position:relative;padding:148px 0 92px;color:#fff;overflow:hidden;
  background:linear-gradient(115deg,rgba(20,18,28,.94) 0%,rgba(20,18,28,.82) 52%,rgba(91,43,224,.76) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;}
.hero::after{content:"";position:absolute;inset:auto 0 0 0;height:220px;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.5) 1px,transparent 1px);background-size:12px 12px;opacity:.06;}
.hero h1{color:#fff;font-size:clamp(30px,5vw,52px);line-height:1.15;font-weight:800;letter-spacing:-.01em;}
.hero-sub{margin-top:16px;font-size:17px;line-height:1.8;color:rgba(255,255,255,.82);max-width:540px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px;}
.pill{display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 12px;border-radius:999px;font-size:13px;
  background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.18);color:rgba(255,255,255,.9);}
.pill b{font-family:var(--mono);font-weight:700;letter-spacing:.02em;color:var(--accent);}
.hero-shot{width:100%;border-radius:18px;border:1px solid rgba(255,255,255,.16);box-shadow:0 24px 60px rgba(0,0,0,.45);object-fit:cover;aspect-ratio:4/3;}
.hero-shot-wrap{position:relative;}
.hero-dots{position:absolute;right:-18px;bottom:-18px;width:96px;height:96px;border-radius:var(--r-card);pointer-events:none;
  background-image:radial-gradient(var(--accent) 1.5px,transparent 1.5px);background-size:12px 12px;opacity:.06;}

/* ===== 通用板块 ===== */
.section{padding:96px 0;scroll-margin-top:104px;}
.section-alt{background:#fff;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--brand);text-transform:uppercase;}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--accent);display:block;}
.sec-title{font-size:clamp(24px,3.2vw,36px);line-height:1.25;margin-top:12px;}
.sec-desc{margin-top:14px;max-width:680px;color:var(--ink-3);}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:48px;}

/* ===== 卖点区（非对称） ===== */
.feature-main{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:40px;box-shadow:var(--sh-1);height:100%;}
.feature-main h2{font-size:clamp(22px,2.6vw,30px);line-height:1.35;margin-bottom:20px;}
.check-list li{position:relative;padding-left:28px;margin-bottom:14px;line-height:1.8;}
.check-list li::before{content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;position:absolute;left:0;top:2px;
  width:18px;height:18px;border-radius:50%;background:var(--soft);color:var(--brand);font-size:9px;display:flex;align-items:center;justify-content:center;}
.feature-mini{display:flex;gap:16px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-1);transition:transform var(--t) ease,box-shadow var(--t) ease;height:100%;}
.feature-mini:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.mini-icon{flex:0 0 44px;width:44px;height:44px;border-radius:var(--r-sm);background:var(--soft);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:17px;}
.feature-mini h3{font-size:17px;margin-bottom:6px;}
.feature-mini p{font-size:14.5px;color:var(--ink-3);margin:0;line-height:1.7;}

/* ===== 演示区（横向滑动） ===== */
.demo-track{display:flex;gap:24px;overflow-x:auto;scroll-snap-type:x mandatory;padding:4px 4px 20px;margin:0 -4px;
  scrollbar-width:thin;scrollbar-color:#CFC7EC transparent;}
.demo-track::-webkit-scrollbar{height:8px;}
.demo-track::-webkit-scrollbar-thumb{background:#CFC7EC;border-radius:999px;}
.demo-card{flex:0 0 auto;width:calc((100% - 72px)/3.2);min-width:280px;scroll-snap-align:start;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:14px;box-shadow:var(--sh-1);transition:transform var(--t) ease,box-shadow var(--t) ease;}
.demo-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.demo-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-img);}
.demo-card h3{font-size:16px;margin:16px 0 6px;}
.demo-card p{font-size:14px;color:var(--ink-3);margin:0;line-height:1.7;}

/* ===== 深色证据区 ===== */
.dark-section{background:var(--ink);color:rgba(255,255,255,.8);padding:96px 0;scroll-margin-top:104px;}
.dark-section .sec-title,.dark-section h3{color:#fff;}
.dark-section .sec-desc{color:rgba(255,255,255,.66);}
.dark-section a{color:var(--accent);}
.metric-card{background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.08);border-radius:var(--r-card);padding:26px;height:100%;}
.metric-num{font-family:var(--mono);font-weight:700;font-size:34px;letter-spacing:.02em;color:var(--accent);line-height:1.1;}
.metric-label{margin-top:10px;font-size:14px;color:rgba(255,255,255,.66);line-height:1.7;}
.timeline{position:relative;margin-top:56px;padding-left:28px;}
.timeline::before{content:"";position:absolute;left:5px;top:6px;bottom:6px;width:2px;background:rgba(255,255,255,.12);}
.tl-item{position:relative;padding:0 0 28px 8px;}
.tl-item::before{content:"";position:absolute;left:-28px;top:8px;width:12px;height:12px;border-radius:50%;background:var(--accent);border:3px solid var(--ink);box-shadow:0 0 0 1px rgba(198,242,78,.4);}
.tl-head{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:6px;}
.tl-ver{font-family:var(--mono);font-weight:700;color:#fff;font-size:15px;}
.tl-date{font-size:13px;color:rgba(255,255,255,.5);font-family:var(--mono);}
.tl-item p{margin:0;font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.72);}

/* ===== 内容列表卡 ===== */
.post-card{display:block;height:100%;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:14px;box-shadow:var(--sh-1);
  transition:transform var(--t) ease,box-shadow var(--t) ease;}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);text-decoration:none;}
.post-thumb{width:100%;aspect-ratio:16/9;overflow:hidden;border-radius:var(--r-img);background:var(--soft);}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--t) ease;}
.post-card:hover .post-thumb img{transform:scale(1.03);}
.post-body{padding:16px 6px 6px;}
.tag{display:inline-flex;align-items:center;height:24px;padding:0 10px;font-size:12px;font-weight:600;border-radius:999px;background:var(--soft);color:var(--brand);}
.post-title{font-size:17px;line-height:1.5;margin:12px 0 8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color var(--t) ease;}
.post-card:hover .post-title{color:var(--brand);}
.post-excerpt{font-size:14px;color:var(--ink-3);line-height:1.7;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:16px;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-3);}
.post-meta .arrow{color:var(--brand);font-weight:600;}
.empty-state{background:var(--soft);border:1px dashed #D5C9FF;border-radius:var(--r-card);padding:56px 24px;text-align:center;color:var(--ink-3);}
.empty-state i{font-size:26px;color:var(--brand);display:block;margin-bottom:14px;}

/* ===== 价格区 ===== */
.price-card{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:32px 26px;box-shadow:var(--sh-1);height:100%;display:flex;flex-direction:column;transition:transform var(--t) ease,box-shadow var(--t) ease;}
.price-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.price-card.is-featured{border:2px solid var(--brand);}
.price-badge{position:absolute;top:-13px;right:22px;background:var(--alert);color:#fff;font-size:12px;font-weight:700;padding:4px 12px;border-radius:999px;}
.price-name{font-size:16px;font-weight:700;color:var(--ink);}
.price-amount{font-family:var(--mono);font-weight:700;font-size:38px;color:var(--ink);letter-spacing:.02em;margin:14px 0 4px;line-height:1;}
.price-amount small{font-size:14px;font-weight:600;color:var(--ink-3);font-family:inherit;letter-spacing:0;}
.price-note{font-size:13px;color:var(--ink-3);margin-bottom:22px;}
.price-card ul{margin-bottom:26px;}
.price-card ul li{position:relative;padding-left:26px;margin-bottom:12px;font-size:14.5px;line-height:1.7;}
.price-card ul li::before{content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;position:absolute;left:0;top:3px;color:var(--brand);font-size:12px;}
.price-card .btn-brand,.price-card .btn-line{width:100%;margin-top:auto;}

/* ===== FAQ ===== */
.faq-wrap{max-width:760px;margin:0 auto;}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);margin-bottom:12px;overflow:hidden;transition:border-color var(--t) ease,box-shadow var(--t) ease;}
.faq-item.open{border-color:#CFC4F7;box-shadow:var(--sh-1);}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;background:transparent;border:0;padding:20px 22px;font-size:18px;font-weight:600;color:var(--ink);cursor:pointer;}
.faq-q i{color:var(--alert);transition:transform var(--tf) ease;flex:0 0 auto;}
.faq-item.open .faq-q i{transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height var(--tf) ease;}
.faq-a-inner{padding:0 38px 22px;border-top:1px dashed var(--line);margin-top:-1px;padding-top:16px;color:var(--ink-2);font-size:15px;line-height:1.85;}

/* ===== CTA ===== */
.cta-block{background:linear-gradient(120deg,rgba(91,43,224,.94),rgba(20,18,28,.96)),url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center;border-radius:var(--r-card);padding:56px 40px;color:#fff;text-align:center;}
.cta-block h2{color:#fff;font-size:clamp(22px,3vw,32px);}
.cta-block p{color:rgba(255,255,255,.8);max-width:560px;margin:14px auto 26px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;}

/* ===== 浮动 CTA ===== */
.float-cta{position:fixed;right:24px;bottom:24px;z-index:1035;display:inline-flex;align-items:center;gap:8px;
  background:var(--brand);color:#fff;font-weight:600;font-size:15px;padding:14px 22px;border-radius:999px;box-shadow:var(--sh-2);
  opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity var(--t) ease,transform var(--t) ease,background var(--t) ease,visibility var(--t);}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{background:var(--brand-dark);color:#fff;text-decoration:none;}

/* ===== 页脚 ===== */
.site-footer{background:var(--ink);color:rgba(255,255,255,.66);padding:72px 0 0;margin-top:96px;}
.footer-title{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-text{color:#fff;font-size:16px;}
.footer-desc{font-size:14px;line-height:1.8;max-width:280px;}
.footer-links li{margin-bottom:12px;}
.footer-links a{color:rgba(255,255,255,.66);font-size:14px;}
.footer-links a:hover{color:var(--accent);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:3px;}
.footer-social{display:flex;gap:10px;margin-top:16px;}
.footer-social a{width:36px;height:36px;border-radius:var(--r-sm);border:1px solid rgba(255,255,255,.12);display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.7);}
.footer-social a:hover{background:var(--brand);border-color:var(--brand);color:#fff;text-decoration:none;}
.footer-bottom{margin-top:56px;border-top:1px solid rgba(255,255,255,.08);padding:22px 0;font-size:13px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;}

/* ===== 响应式 ===== */
@media (max-width:1199.98px){
  .container-xl{max-width:100%;}
  .demo-card{width:calc((100% - 48px)/2.2);}
}
@media (max-width:991.98px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .nav-panel{height:64px;}
  .hero{padding:120px 0 72px;}
  .hero-shot-wrap{margin-top:40px;}
  .section,.dark-section{padding:64px 0;}
  .sec-head{margin-bottom:32px;}
}
@media (max-width:767.98px){
  body{font-size:15.5px;}
  .container-xl{padding-left:16px;padding-right:16px;}
  .section,.dark-section{padding:56px 0;}
  .hero{padding:104px 0 56px;}
  .feature-main{padding:26px;}
  .demo-card{width:82%;min-width:0;}
  .post-card{padding:12px;}
  .price-card{padding:26px 20px;}
  .cta-block{padding:40px 22px;}
  .faq-q{font-size:16px;padding:18px;}
  .faq-a-inner{padding:14px 22px 20px;}
  .float-cta{right:12px;left:12px;bottom:12px;justify-content:center;border-radius:var(--r-btn);padding:12px 18px;}
  .site-footer{padding-top:56px;margin-top:56px;}
  .footer-bottom{flex-direction:column;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --brand:#5B2BE0;
  --brand-strong:#4A1FC4;
  --accent:#C6F24E;
  --alert:#FF6B3D;
  --ink:#14121C;
  --ink-2:#3A3550;
  --ink-3:#6C6880;
  --line:#E6E4EF;
  --bg:#F6F5FB;
  --card:#FFFFFF;
  --lilac:#F1EDFF;
  --r-card:16px;
  --r-sm:10px;
  --r-btn:12px;
  --r-img:14px;
  --sh-1:0 1px 2px rgba(20,18,28,.06), 0 8px 24px rgba(20,18,28,.06);
  --sh-2:0 12px 32px rgba(91,43,224,.16);
  --ct:1200px;
  --font:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --mono:ui-monospace,"DIN Alternate","SFMono-Regular",Menlo,Consolas,monospace;
  --t:240ms;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--ink-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none}
a:hover{color:var(--brand-strong)}
button{font-family:inherit}
h1,h2,h3,h4{color:var(--ink);margin:0}
p{margin:0 0 1em}
.container-xl{max-width:var(--ct);margin:0 auto;padding-left:24px;padding-right:24px;width:100%}
@media (min-width:1400px){.container-xl{max-width:1320px}}
::selection{background:var(--accent);color:var(--ink)}

/* ---------- 顶部导航 ---------- */
.site-header{position:fixed;top:12px;left:0;right:0;z-index:1030}
.nav-panel{
  display:flex;align-items:center;gap:18px;height:72px;
  padding:0 14px 0 18px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:16px;
  box-shadow:var(--sh-1);
  transition:background var(--t) ease,border-color var(--t) ease,box-shadow var(--t) ease;
}
.site-header.is-scrolled .nav-panel{
  background:#14121C;
  border-color:rgba(255,255,255,.08);
  box-shadow:0 10px 34px rgba(20,18,28,.32);
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr;gap:2px;width:22px;height:22px}
.brand-mark i{display:block;border-radius:2px;background:var(--brand)}
.brand-mark i:nth-child(2){background:var(--accent)}
.brand-mark i:nth-child(3){background:var(--accent)}
.brand-mark i:nth-child(4){background:var(--brand)}
.brand-text{font-size:16px;font-weight:700;color:var(--ink);letter-spacing:.01em;white-space:nowrap}
.site-header.is-scrolled .brand-text{color:#fff}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-chip{
  display:inline-flex;align-items:center;gap:7px;
  height:40px;padding:0 13px;border-radius:var(--r-sm);
  font-size:14px;font-weight:500;color:var(--ink-2);
  border:1px solid transparent;
  transition:background var(--t) ease,color var(--t) ease,border-color var(--t) ease;
  white-space:nowrap;
}
.nav-chip i{font-size:13px;opacity:.85}
.nav-chip:hover{background:var(--lilac);color:var(--brand);border-color:#DCD2FF}
.nav-chip.active{background:var(--brand);color:#fff;border-color:var(--brand);box-shadow:0 6px 16px rgba(91,43,224,.24)}
.site-header.is-scrolled .nav-chip{color:rgba(255,255,255,.82)}
.site-header.is-scrolled .nav-chip:hover{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.12)}
.site-header.is-scrolled .nav-chip.active{background:var(--brand);color:#fff;border-color:var(--brand)}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:transparent;color:var(--ink);
  font-size:17px;cursor:pointer;
  transition:background var(--t) ease,border-color var(--t) ease;
}
.nav-toggle:hover{background:var(--lilac);border-color:#DCD2FF;color:var(--brand)}
.site-header.is-scrolled .nav-toggle{color:#fff;border-color:rgba(255,255,255,.16)}
.site-header.is-scrolled .nav-toggle:hover{background:rgba(255,255,255,.08)}

/* ---------- 按钮 ---------- */
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);
  background:var(--brand);color:#fff;border:1px solid var(--brand);
  font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;
  transition:background var(--t) ease,transform var(--t) ease,box-shadow var(--t) ease;
}
.btn-main:hover{background:var(--brand-strong);border-color:var(--brand-strong);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-main:active{transform:translateY(0);box-shadow:none;background:var(--brand-strong)}
.btn-main:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.btn-main[disabled],.btn-main.is-disabled{opacity:.45;pointer-events:none}
.btn-cta{height:44px;padding:0 20px;font-size:14px}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border-radius:var(--r-btn);
  background:transparent;color:var(--ink);border:1px solid var(--line);
  font-size:15px;font-weight:600;cursor:pointer;
  transition:background var(--t) ease,border-color var(--t) ease,color var(--t) ease,transform var(--t) ease;
}
.btn-ghost:hover{background:var(--lilac);border-color:#CFC1FF;color:var(--brand);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-ghost:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.btn-arrow{display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--brand);font-size:15px}
.btn-arrow i{transition:transform var(--t) ease,color var(--t) ease}
.btn-arrow:hover{color:var(--brand-strong)}
.btn-arrow:hover i{transform:translateX(4px);color:var(--alert)}

/* ---------- 主体骨架 ---------- */
main{padding-top:112px}
.page-shell{background:var(--bg);padding-bottom:8px}
.tag-pill{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:999px;background:var(--lilac);color:var(--brand);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}

/* ---------- 面包屑 ---------- */
.crumb-bar{padding:8px 0 0;font-size:13px;color:var(--ink-3)}
.crumb-bar a{color:var(--ink-3)}
.crumb-bar a:hover{color:var(--brand)}
.crumb-bar .sep{margin:0 8px;color:#C9C5D8}
.crumb-bar .current{color:var(--ink-2)}

/* ---------- 文章头部 ---------- */
.article-head{padding:24px 0 8px;max-width:940px}
.article-head h1{
  font-size:clamp(26px,4vw,38px);
  line-height:1.25;
  font-weight:800;
  letter-spacing:-.01em;
  margin-bottom:18px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:13px;color:var(--ink-3)}
.article-meta .dot{width:3px;height:3px;border-radius:50%;background:#C9C5D8}
.meta-author{display:inline-flex;align-items:center;gap:7px}
.meta-author span.ava{
  width:24px;height:24px;border-radius:50%;
  background:linear-gradient(135deg,var(--brand),#8A63F0);
  display:inline-flex;align-items:center;justify-content:center;
  color:#fff;font-size:11px;font-weight:700;
}

/* ---------- 阅读提示条 ---------- */
.read-tip{
  display:flex;gap:12px;align-items:flex-start;
  margin:26px 0 0;padding:14px 18px;
  background:var(--lilac);border-left:4px solid var(--brand);border-radius:10px;
  font-size:14px;line-height:1.75;color:var(--ink-2);max-width:940px;
}
.read-tip i{color:var(--brand);margin-top:4px}

/* ---------- 正文布局 ---------- */
.article-layout{display:grid;grid-template-columns:1fr;gap:40px;padding:34px 0 0}
@media (min-width:1200px){
  .article-layout{grid-template-columns:minmax(0,760px) 280px;justify-content:center;gap:56px}
}
.article-main{width:100%;max-width:760px;margin:0 auto;min-width:0}
.article-body{font-size:16.5px;line-height:1.9;color:var(--ink-2);word-wrap:break-word}
.article-body p{margin:0 0 1.2em}
.article-body h2{
  position:relative;font-size:26px;font-weight:700;line-height:1.35;
  margin:40px 0 16px;padding-left:16px;scroll-margin-top:112px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:7px;width:4px;height:22px;
  border-radius:2px;background:var(--brand);
}
.article-body h3{font-size:20px;font-weight:600;margin:28px 0 12px;scroll-margin-top:112px}
.article-body ul,.article-body ol{padding-left:1.5em;margin:0 0 1.3em}
.article-body li{margin-bottom:.5em}
.article-body li::marker{color:var(--brand);font-weight:700}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(91,43,224,.28);transition:color var(--t) ease,border-color var(--t) ease}
.article-body a:hover{color:var(--brand-strong);border-bottom:2px solid var(--accent)}
.article-body strong{color:var(--ink);font-weight:700}
.article-body img{border-radius:var(--r-img);margin:22px auto;height:auto}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:10px;line-height:1.7}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;
  background:var(--lilac);border-left:4px solid var(--brand);border-radius:10px;
  color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body code{
  font-family:var(--mono);font-size:.92em;
  background:var(--lilac);color:var(--brand);
  padding:2px 6px;border-radius:6px;
}
.article-body .table-wrap{
  overflow-x:auto;margin:24px 0;
  border:1px solid var(--line);border-radius:var(--r-img);background:var(--card);
}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;min-width:520px}
.article-body th{
  background:var(--lilac);color:var(--ink);text-align:left;
  padding:12px 16px;font-weight:600;white-space:nowrap;
}
.article-body td{padding:12px 16px;border-top:1px solid var(--line);vertical-align:top}
.article-body hr{border:none;border-top:1px dashed var(--line);margin:32px 0}

/* ---------- 目录 ---------- */
.toc-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:18px 18px 14px;
}
@media (min-width:1200px){
  .toc-card{position:sticky;top:112px;max-height:calc(100vh - 150px);overflow:auto}
}
.toc-head{display:flex;align-items:center;justify-content:space-between;gap:10px}
.toc-head .toc-title{font-size:15px;font-weight:700;color:var(--ink)}
.toc-toggle{
  display:none;align-items:center;gap:6px;
  border:1px solid var(--line);background:transparent;color:var(--brand);
  border-radius:10px;padding:6px 10px;font-size:13px;font-weight:600;cursor:pointer;
}
.toc-toggle i{transition:transform var(--t) ease}
.toc-card.is-open .toc-toggle i{transform:rotate(180deg)}
.toc-list{list-style:none;margin:12px 0 0;padding:0}
.toc-list .toc-item{margin-bottom:8px}
.toc-list a{
  display:block;font-size:14px;line-height:1.6;color:var(--ink-3);
  padding:4px 0 4px 10px;border-left:2px solid var(--line);
  transition:color var(--t) ease,border-color var(--t) ease;
}
.toc-list a:hover{color:var(--brand);border-left-color:var(--brand)}
.toc-list .toc-sub a{padding-left:22px;font-size:13px}
@media (max-width:1199px){
  .toc-card{order:-1;margin-bottom:8px}
  .toc-toggle{display:inline-flex}
  .toc-list{display:none;margin-top:14px;border-top:1px dashed var(--line);padding-top:12px}
  .toc-card.is-open .toc-list{display:block}
}

/* ---------- 空态 ---------- */
.article-empty{
  background:var(--lilac);border:1px solid #DCD2FF;border-radius:var(--r-card);
  padding:56px 24px;text-align:center;
}
.article-empty i{font-size:30px;color:var(--brand)}
.article-empty h2{font-size:20px;margin:16px 0 8px}
.article-empty p{color:var(--ink-3);font-size:14px;margin-bottom:22px}

/* ---------- 文末操作 ---------- */
.article-foot{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  margin-top:48px;padding-top:28px;border-top:1px dashed var(--line);
}

/* ---------- 相关推荐 ---------- */
.related{padding:72px 0 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px}
.section-head h2{font-size:clamp(22px,3vw,30px);font-weight:700}
.section-head p{font-size:14px;color:var(--ink-3);margin:6px 0 0}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.news-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;display:flex;flex-direction:column;
  transition:transform var(--t) ease,box-shadow var(--t) ease,border-color var(--t) ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#DCD2FF}
.card-media{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--lilac)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform 400ms ease}
.news-card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:20px;display:flex;flex-direction:column;flex:1 1 auto}
.card-title{font-size:17px;font-weight:700;line-height:1.5;margin:12px 0 10px}
.card-title a{
  color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
  overflow:hidden;transition:color var(--t) ease;
}
.news-card:hover .card-title a{color:var(--brand)}
.card-desc{
  font-size:14px;line-height:1.75;color:var(--ink-3);margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--ink-3);font-family:var(--mono);
}
.card-foot .arrow{color:var(--brand);transition:transform var(--t) ease}
.news-card:hover .card-foot .arrow{transform:translateX(4px);color:var(--alert)}

/* ---------- CTA 区 ---------- */
.cta-band{padding:80px 0 8px}
.cta-card{
  position:relative;overflow:hidden;
  background:#14121C;border-radius:20px;padding:56px 48px;
  border:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
}
.cta-card::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(198,242,78,.16) 1px,transparent 1px);
  background-size:12px 12px;opacity:.6;pointer-events:none;
}
.cta-copy{position:relative;z-index:1;max-width:620px}
.cta-copy h2{color:#fff;font-size:clamp(22px,3vw,30px);font-weight:700;margin-bottom:12px}
.cta-copy p{color:rgba(255,255,255,.68);font-size:15px;line-height:1.85;margin:0}
.cta-actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:12px}
.cta-actions .btn-ghost{color:#fff;border-color:rgba(255,255,255,.22);background:transparent}
.cta-actions .btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.4)}
.cta-actions .btn-accent{background:var(--accent);border-color:var(--accent);color:var(--ink)}
.cta-actions .btn-accent:hover{background:#D6FF66;border-color:#D6FF66;color:var(--ink)}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:1020;
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 22px;border-radius:999px;
  background:var(--brand);color:#fff;font-size:14px;font-weight:600;
  box-shadow:0 12px 32px rgba(91,43,224,.32);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity var(--t) ease,transform var(--t) ease,visibility var(--t) ease,background var(--t) ease;
}
.float-cta:hover{background:var(--brand-strong);color:#fff;transform:translateY(-2px)}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0)}

/* ---------- 页脚 ---------- */
.site-footer{background:#14121C;color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:96px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-text{color:#fff;font-size:17px}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);max-width:340px;margin-bottom:20px}
.footer-social{display:flex;gap:8px}
.footer-social a{
  width:38px;height:38px;border-radius:10px;
  border:1px solid rgba(255,255,255,.12);color:rgba(255,255,255,.75);
  display:inline-flex;align-items:center;justify-content:center;font-size:14px;
  transition:background var(--t) ease,color var(--t) ease,border-color var(--t) ease,transform var(--t) ease;
}
.footer-social a:hover{background:rgba(198,242,78,.14);color:var(--accent);border-color:rgba(198,242,78,.4);transform:translateY(-2px)}
.footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-links{list-style:none;padding:0;margin:0}
.footer-links li{margin-bottom:10px;font-size:14px;color:rgba(255,255,255,.6);line-height:1.7}
.footer-links a{color:rgba(255,255,255,.6);border-bottom:2px solid transparent;transition:color var(--t) ease,border-color var(--t) ease}
.footer-links a:hover{color:var(--accent);border-bottom-color:var(--accent)}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.08);
  padding:20px 0;display:flex;flex-wrap:wrap;gap:8px;
  justify-content:space-between;font-size:13px;color:rgba(255,255,255,.45);
}

/* ---------- 移动端抽屉 ---------- */
.offcanvas-nav{background:#14121C;color:#fff;width:320px}
.offcanvas-nav .offcanvas-header{border-bottom:1px solid rgba(255,255,255,.08);padding:20px}
.offcanvas-nav .offcanvas-header .brand-text{color:#fff}
.offcanvas-nav .btn-close{filter:invert(1) grayscale(1);opacity:.7}
.offcanvas-nav .offcanvas-body{padding:18px}
.drawer-links{display:flex;flex-direction:column;gap:8px}
.drawer-link{
  display:flex;align-items:center;gap:10px;
  padding:14px 16px;border-radius:12px;
  background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);
  color:rgba(255,255,255,.85);font-size:15px;font-weight:500;
  transition:background var(--t) ease,color var(--t) ease,border-color var(--t) ease;
}
.drawer-link:hover{background:rgba(91,43,224,.28);color:#fff;border-color:rgba(91,43,224,.6)}
.drawer-link.active{background:var(--brand);color:#fff;border-color:var(--brand)}
.drawer-cta{padding:18px;border-top:1px solid rgba(255,255,255,.08)}
.drawer-cta .btn-main{width:100%}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:991px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .nav-actions .btn-cta{display:none}
  main{padding-top:104px}
  .cta-card{padding:40px 26px}
}
@media (max-width:767px){
  .container-xl{padding-left:16px;padding-right:16px}
  body{font-size:15.5px}
  main{padding-top:96px}
  .site-header{top:8px}
  .nav-panel{height:64px;padding:0 10px 0 14px;border-radius:14px}
  .brand-text{font-size:15px}
  .article-head h1{font-size:25px}
  .article-body{font-size:16px;line-height:1.9}
  .article-body h2{font-size:22px;margin-top:34px}
  .article-body h3{font-size:18px}
  .related{padding-top:56px}
  .related-grid{grid-template-columns:1fr}
  .cta-band{padding-top:56px}
  .float-cta{
    left:0;right:0;bottom:0;width:100%;border-radius:0;
    justify-content:center;padding:15px 16px;height:56px;
    transform:translateY(100%);box-shadow:0 -8px 24px rgba(20,18,28,.18);
  }
  .float-cta.is-visible{transform:translateY(0)}
  .site-footer{padding-top:48px;margin-top:64px}
  .footer-bottom{flex-direction:column;gap:6px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category1 */
:root{
  --brand:#5B2BE0;
  --brand-dark:#4720B8;
  --brand-soft:#F1EDFF;
  --accent:#C6F24E;
  --warn:#FF6B3D;
  --ink:#14121C;
  --gray-1:#3A3550;
  --gray-2:#6C6880;
  --line:#E6E4EF;
  --page:#F6F5FB;
  --card:#FFFFFF;
  --r-card:16px;
  --r-sm:10px;
  --r-btn:12px;
  --r-img:14px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,18,28,.06),0 8px 24px rgba(20,18,28,.06);
  --sh-2:0 12px 32px rgba(91,43,224,.16);
  --sp-4:4px;--sp-8:8px;--sp-12:12px;--sp-16:16px;--sp-24:24px;--sp-32:32px;--sp-48:48px;--sp-64:64px;--sp-96:96px;
  --t-fast:200ms;--t:240ms;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;line-height:1.85;color:var(--gray-1);background:var(--page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color var(--t),border-color var(--t);}
a:hover{color:var(--warn);}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.25;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button,input{font-family:inherit;}
.mono{font-family:ui-monospace,"DIN Alternate","SFMono-Regular",Menlo,Consolas,monospace;font-weight:700;letter-spacing:.02em;}
.container-xl{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}
@media (min-width:1400px){.container-xl{max-width:1320px;}}
.section{padding:96px 0;}
.section-sm{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:var(--sp-48);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;border-radius:var(--r-pill);
  background:var(--brand-soft);color:var(--brand);font-size:13px;font-weight:600;margin-bottom:var(--sp-16);
}
.eyebrow i{font-size:11px;}
h2{font-size:clamp(24px,3.2vw,36px);margin-bottom:var(--sp-16);}
.section-head p{color:var(--gray-2);font-size:16px;}
.section-head .eyebrow{margin-bottom:var(--sp-12);}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:1030;padding-top:12px;}
.nav-card{
  display:flex;align-items:center;gap:var(--sp-16);
  min-height:72px;padding:10px 16px 10px 20px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);transition:background var(--t),border-color var(--t),box-shadow var(--t);
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{display:grid;grid-template-columns:repeat(2,7px);grid-template-rows:repeat(2,7px);gap:3px;}
.brand-mark i{display:block;border-radius:2px;background:var(--brand);}
.brand-mark i:nth-child(2){background:var(--accent);}
.brand-mark i:nth-child(4){background:var(--gray-2);}
.brand-text{font-size:16px;font-weight:800;color:var(--ink);letter-spacing:.01em;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:8px;margin-left:auto;}
.nav-chip{
  display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 14px;border-radius:var(--r-sm);
  font-size:14px;font-weight:600;color:var(--gray-1);border:1px solid transparent;
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t);
}
.nav-chip i{font-size:13px;color:var(--gray-2);transition:color var(--t);}
.nav-chip:hover{background:var(--brand-soft);color:var(--brand);border-color:#E2D8FF;}
.nav-chip:hover i{color:var(--brand);}
.nav-chip.active{background:var(--brand);color:#fff;border-color:var(--brand);}
.nav-chip.active i{color:rgba(255,255,255,.85);}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);border:1px solid transparent;
  background:var(--brand);color:#fff;font-size:14px;font-weight:600;cursor:pointer;
  transition:background var(--t),transform var(--t),box-shadow var(--t);
}
.btn-brand:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-brand:active{transform:translateY(0);box-shadow:none;}
.btn-brand:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.btn-brand:disabled,.btn-brand.disabled{opacity:.45;pointer-events:none;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--line);
  background:#fff;color:var(--ink);font-size:16px;cursor:pointer;
}
.nav-toggle:hover{background:var(--brand-soft);color:var(--brand);border-color:#E2D8FF;}
.site-header.is-scrolled .nav-card{
  background:var(--ink);border-color:rgba(255,255,255,.08);box-shadow:none;
}
.site-header.is-scrolled .brand-text{color:#fff;}
.site-header.is-scrolled .brand-mark i:nth-child(4){background:rgba(255,255,255,.4);}
.site-header.is-scrolled .nav-chip{color:rgba(255,255,255,.78);}
.site-header.is-scrolled .nav-chip i{color:rgba(255,255,255,.6);}
.site-header.is-scrolled .nav-chip:hover{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.12);}
.site-header.is-scrolled .nav-chip:hover i{color:var(--accent);}
.site-header.is-scrolled .nav-chip.active{background:var(--accent);color:var(--ink);border-color:var(--accent);}
.site-header.is-scrolled .nav-chip.active i{color:var(--ink);}
.site-header.is-scrolled .nav-toggle{background:transparent;color:#fff;border-color:rgba(255,255,255,.16);}

/* ---------- 移动端抽屉 ---------- */
.mobile-nav{background:#fff;border-left:1px solid var(--line);}
.mobile-nav .offcanvas-header{border-bottom:1px solid var(--line);padding:16px 20px;}
.mobile-links{display:flex;flex-direction:column;gap:8px;}
.mobile-links a{
  display:flex;align-items:center;gap:12px;min-height:48px;padding:0 16px;border-radius:var(--r-sm);
  color:var(--gray-1);font-size:15px;font-weight:600;border:1px solid var(--line);
}
.mobile-links a i{color:var(--gray-2);}
.mobile-links a:hover{background:var(--brand-soft);color:var(--brand);border-color:#E2D8FF;}
.mobile-links a.active{background:var(--brand);color:#fff;border-color:var(--brand);}
.mobile-links a.active i{color:#fff;}
.mobile-cta{padding:16px 20px 24px;border-top:1px solid var(--line);}

/* ---------- Hero ---------- */
.hero{
  position:relative;margin-top:-84px;padding:172px 0 96px;
  background:var(--ink) url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color:#fff;overflow:hidden;
}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(160deg,rgba(20,18,28,.86),rgba(20,18,28,.94));}
.hero::after{
  content:"";position:absolute;right:-60px;bottom:-40px;width:260px;height:260px;opacity:.06;
  background-image:radial-gradient(#fff 1.5px,transparent 1.5px);background-size:12px 12px;
}
.hero .container-xl{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:var(--sp-48);align-items:center;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:var(--r-pill);
  background:rgba(198,242,78,.14);color:var(--accent);font-size:13px;font-weight:600;margin-bottom:var(--sp-24);
  border:1px solid rgba(198,242,78,.28);
}
.hero h1{color:#fff;font-size:clamp(30px,5vw,52px);line-height:1.15;font-weight:800;margin-bottom:var(--sp-24);}
.hero h1 em{font-style:normal;color:var(--accent);}
.hero-sub{color:rgba(255,255,255,.78);font-size:17px;max-width:560px;margin-bottom:var(--sp-32);}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:var(--sp-32);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);background:transparent;border:1px solid rgba(255,255,255,.28);
  color:#fff;font-size:14px;font-weight:600;cursor:pointer;transition:all var(--t);
}
.btn-ghost:hover{background:rgba(255,255,255,.1);border-color:var(--accent);color:var(--accent);}
.btn-ghost:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.btn-ghost:active{transform:translateY(1px);}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;}
.badge-pill{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);
  color:rgba(255,255,255,.86);font-size:13px;
}
.badge-pill i{color:var(--accent);font-size:11px;}
.hero-figure{position:relative;}
.hero-figure img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:18px;
  border:1px solid rgba(255,255,255,.12);
}
.hero-figure .figure-note{
  position:absolute;left:16px;bottom:16px;right:16px;padding:12px 16px;border-radius:var(--r-sm);
  background:rgba(20,18,28,.78);border:1px solid rgba(255,255,255,.12);
  color:rgba(255,255,255,.86);font-size:13px;line-height:1.6;
}

/* ---------- 节奏卡 ---------- */
.pace-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--sp-24);}
.pace-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:var(--sp-32);
  box-shadow:var(--sh-1);transition:transform var(--t),box-shadow var(--t);
  border-top:3px solid var(--brand);
}
.pace-card:nth-child(2){border-top-color:var(--accent);}
.pace-card:nth-child(3){border-top-color:var(--warn);}
.pace-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.pace-icon{
  width:48px;height:48px;border-radius:var(--r-sm);display:flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand);font-size:19px;margin-bottom:var(--sp-24);
}
.pace-card h3{font-size:20px;margin-bottom:var(--sp-12);}
.pace-card p{color:var(--gray-2);font-size:15px;line-height:1.8;}
.pace-card .pace-cycle{
  display:inline-block;margin-top:var(--sp-16);font-size:13px;color:var(--brand);
  background:var(--brand-soft);border-radius:var(--r-pill);padding:4px 12px;
}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;padding-left:32px;}
.timeline::before{
  content:"";position:absolute;left:7px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(180deg,var(--brand),var(--line));
}
.tl-item{position:relative;margin-bottom:var(--sp-32);}
.tl-item:last-child{margin-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:-32px;top:26px;width:16px;height:16px;border-radius:50%;
  background:#fff;border:3px solid var(--accent);box-shadow:0 0 0 4px rgba(198,242,78,.2);
}
.tl-item:first-child::before{border-color:var(--brand);box-shadow:0 0 0 4px rgba(91,43,224,.16);}
.tl-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:var(--sp-24) var(--sp-32);box-shadow:var(--sh-1);transition:transform var(--t),box-shadow var(--t);
}
.tl-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.tl-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:12px;margin-bottom:var(--sp-12);}
.tl-version{font-size:20px;color:var(--brand);}
.tl-date{font-size:13px;color:var(--gray-2);}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-left:auto;}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);
  background:var(--brand-soft);color:var(--brand);font-size:12px;font-weight:600;
}
.tag.tag-accent{background:rgba(198,242,78,.28);color:#4A6100;}
.tag.tag-warn{background:rgba(255,107,61,.14);color:#C23F17;}
.tl-card h3{font-size:17px;margin-bottom:var(--sp-8);}
.tl-card p{font-size:15px;color:var(--gray-2);}
.tl-list{margin-top:var(--sp-12);display:grid;gap:8px;}
.tl-list li{position:relative;padding-left:20px;font-size:15px;color:var(--gray-2);line-height:1.8;}
.tl-list li::before{
  content:"";position:absolute;left:2px;top:12px;width:8px;height:2px;background:var(--accent);border-radius:2px;
}

/* ---------- 图文混合 ---------- */
.mix-grid{display:grid;grid-template-columns:6fr 6fr;gap:var(--sp-32);align-items:start;}
.mix-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
}
.mix-card img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.mix-card-body{padding:var(--sp-32);}
.mix-card-body h3{font-size:20px;margin-bottom:var(--sp-12);}
.mix-card-body p{color:var(--gray-2);font-size:15px;}
.mix-list{display:grid;gap:var(--sp-16);}
.mix-item{
  display:flex;gap:var(--sp-16);padding:var(--sp-24);background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.mix-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#DED4FF;}
.mix-item .mix-icon{
  flex:0 0 44px;width:44px;height:44px;border-radius:var(--r-sm);display:flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand);font-size:16px;
}
.mix-item h4{font-size:17px;margin-bottom:6px;}
.mix-item p{font-size:14px;color:var(--gray-2);line-height:1.75;}

/* ---------- 检查清单 ---------- */
.check-wrap{
  background:var(--brand-soft);border-radius:var(--r-card);padding:var(--sp-48);
  border:1px solid #E2D8FF;
}
.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--sp-16);}
.check-item{
  display:flex;gap:var(--sp-16);padding:var(--sp-24);background:#fff;border-radius:var(--r-card);
  border:1px solid var(--line);
}
.check-item i{color:var(--brand);font-size:16px;margin-top:5px;}
.check-item strong{display:block;color:var(--ink);font-size:16px;font-weight:600;margin-bottom:4px;}
.check-item span{font-size:14px;color:var(--gray-2);line-height:1.75;}

/* ---------- 深色数据区 ---------- */
.dark-band{
  background:var(--ink) url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  color:rgba(255,255,255,.78);position:relative;overflow:hidden;
}
.dark-band::before{content:"";position:absolute;inset:0;background:rgba(20,18,28,.9);}
.dark-band .container-xl{position:relative;z-index:2;}
.dark-band h2{color:#fff;}
.dark-band .section-head p{color:rgba(255,255,255,.68);}
.dark-band .eyebrow{background:rgba(198,242,78,.14);color:var(--accent);}
.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--sp-24);}
.stat-card{
  padding:var(--sp-32);border-radius:var(--r-card);border:1px solid rgba(255,255,255,.08);
  background:rgba(255,255,255,.03);
}
.stat-num{font-size:clamp(32px,4vw,46px);color:var(--accent);line-height:1.1;margin-bottom:var(--sp-12);}
.stat-card h3{color:#fff;font-size:16px;font-weight:600;margin-bottom:8px;}
.stat-card p{color:rgba(255,255,255,.62);font-size:14px;line-height:1.75;}
.stat-note{
  margin-top:var(--sp-32);padding:var(--sp-16) var(--sp-24);border-left:4px solid var(--accent);
  background:rgba(255,255,255,.04);border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:rgba(255,255,255,.72);font-size:14px;
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:760px;margin:0 auto;}
.accordion-item{
  border:1px solid var(--line)!important;border-radius:var(--r-card)!important;margin-bottom:var(--sp-12);
  overflow:hidden;background:var(--card);box-shadow:var(--sh-1);
}
.accordion-button{
  font-size:18px;font-weight:600;color:var(--ink);background:var(--card);padding:20px 24px;
  box-shadow:none!important;gap:16px;
}
.accordion-button:not(.collapsed){background:var(--brand-soft);color:var(--brand);}
.accordion-button::after{
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;font-size:13px;color:var(--warn);
  background-image:none;width:auto;height:auto;transition:transform var(--t-fast);
  display:flex;align-items:center;justify-content:center;
}
.accordion-button:not(.collapsed)::after{transform:rotate(180deg);}
.accordion-body{
  padding:0 40px 24px;color:var(--gray-2);font-size:15px;line-height:1.85;
  border-top:1px dashed var(--line);padding-top:16px;
}
.accordion-button:focus{outline:2px solid var(--accent);outline-offset:-2px;}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--ink) url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  position:relative;overflow:hidden;border-radius:0;
}
.cta-band::before{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(20,18,28,.92),rgba(91,43,224,.72));}
.cta-band .container-xl{position:relative;z-index:2;}
.cta-inner{max-width:760px;}
.cta-inner h2{color:#fff;margin-bottom:var(--sp-16);}
.cta-inner p{color:rgba(255,255,255,.76);margin-bottom:var(--sp-32);}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:1040;
  display:inline-flex;align-items:center;gap:10px;height:52px;padding:0 24px;border-radius:var(--r-pill);
  background:var(--brand);color:#fff;font-size:15px;font-weight:600;box-shadow:var(--sh-2);
  opacity:0;visibility:hidden;transform:translateY(12px);transition:all var(--t);
}
.float-cta:hover{background:var(--brand-dark);color:#fff;}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.68);padding:96px 0 0;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:var(--sp-16);}
.footer-brand .brand-mark i{background:var(--accent);}
.footer-brand .brand-mark i:nth-child(2){background:var(--brand);}
.footer-brand .brand-mark i:nth-child(4){background:rgba(255,255,255,.35);}
.footer-brand .brand-text{color:#fff;font-size:16px;font-weight:800;}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);max-width:340px;}
.footer-social{display:flex;gap:10px;margin-top:var(--sp-24);}
.footer-social a{
  width:40px;height:40px;border-radius:var(--r-sm);display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.06);color:rgba(255,255,255,.8);border:1px solid rgba(255,255,255,.08);
  transition:all var(--t);
}
.footer-social a:hover{background:var(--brand);color:#fff;border-color:var(--brand);}
.footer-title{color:#fff;font-size:15px;font-weight:700;margin-bottom:var(--sp-16);}
.footer-links li{margin-bottom:10px;font-size:14px;}
.footer-links a{color:rgba(255,255,255,.66);border-bottom:2px solid transparent;padding-bottom:2px;}
.footer-links a:hover{color:var(--accent);border-bottom-color:var(--accent);}
.footer-bottom{
  margin-top:var(--sp-64);border-top:1px solid rgba(255,255,255,.08);padding:24px 0 32px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .nav-card{gap:12px;}
  .nav-actions{margin-left:auto;}
}
@media (max-width:991.98px){
  .section{padding:72px 0;}
  .hero{padding:150px 0 72px;margin-top:-82px;}
  .hero-grid{grid-template-columns:1fr;gap:var(--sp-32);}
  .pace-grid{grid-template-columns:1fr;}
  .mix-grid{grid-template-columns:1fr;}
  .stat-grid{grid-template-columns:1fr;}
  .check-grid{grid-template-columns:1fr;}
  .check-wrap{padding:var(--sp-32);}
}
@media (max-width:767.98px){
  .container-xl{padding-left:16px;padding-right:16px;}
  body{font-size:15px;}
  .section{padding:56px 0;}
  .hero{padding:140px 0 56px;margin-top:-78px;}
  .hero-sub{font-size:15px;}
  .nav-card{min-height:64px;padding:8px 12px;border-radius:14px;}
  .brand-text{font-size:14px;}
  .btn-brand{padding:10px 16px;font-size:13px;}
  .timeline{padding-left:26px;}
  .tl-item::before{left:-26px;width:14px;height:14px;}
  .tl-card{padding:var(--sp-24) 20px;}
  .tl-tags{margin-left:0;width:100%;}
  .float-cta{
    left:0;right:0;bottom:0;height:56px;border-radius:0;justify-content:center;
    transform:translateY(100%);
  }
  .float-cta.show{transform:translateY(0);}
  .footer-bottom{flex-direction:column;}
  .cta-actions .btn-brand,.cta-actions .btn-ghost{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important;}
}

/* roulang page: category3 */
:root{
  --brand:#5B2BE0;
  --brand-dark:#4A1FC4;
  --brand-soft:rgba(91,43,224,.10);
  --lime:#C6F24E;
  --coral:#FF6B3D;
  --ink:#14121C;
  --ink-2:#3A3550;
  --ink-3:#6C6880;
  --line:#E6E4EF;
  --bg:#F6F5FB;
  --card:#FFFFFF;
  --lilac:#F1EDFF;
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;
  --r-img:14px;
  --sh-1:0 1px 2px rgba(20,18,28,.06),0 8px 24px rgba(20,18,28,.06);
  --sh-2:0 12px 32px rgba(91,43,224,.16);
  --sp-1:8px;--sp-2:16px;--sp-3:24px;--sp-4:32px;--sp-5:48px;--sp-6:64px;--sp-7:96px;
  --t:240ms;
  --t-fold:200ms;
  --container:1200px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  padding-top:104px;
  background:var(--bg);
  color:var(--ink);
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color var(--t),border-color var(--t)}
a:hover{color:var(--brand-dark);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:4px}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px}
.container-xl{
  width:100%;
  max-width:var(--container);
  margin-inline:auto;
  padding-inline:24px;
}
.mono{font-family:ui-monospace,"DIN Alternate","SFMono-Regular",Menlo,Consolas,monospace;font-weight:700;letter-spacing:.02em}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;
  top:12px;left:0;right:0;
  z-index:1040;
  padding-inline:16px;
}
.nav-panel{
  max-width:var(--container);
  margin-inline:auto;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  transition:background var(--t),border-color var(--t),box-shadow var(--t);
}
.nav-inner{
  height:72px;
  display:flex;
  align-items:center;
  gap:20px;
  max-width:var(--container);
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  text-decoration:none;
}
.brand:hover{text-decoration:none}
.brand-mark{
  width:34px;height:34px;
  border-radius:10px;
  background:var(--brand);
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:3px;
  padding:7px;
  flex:0 0 auto;
}
.brand-mark i{background:var(--lime);border-radius:2px;display:block}
.brand-mark i:nth-child(2){background:rgba(255,255,255,.85)}
.brand-mark i:nth-child(3){background:rgba(255,255,255,.55)}
.brand-text{
  font-size:17px;
  font-weight:700;
  color:var(--ink);
  white-space:nowrap;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:8px;
  margin-left:auto;
}
.nav-chip{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:9px 14px;
  border-radius:var(--r-sm);
  font-size:14.5px;
  font-weight:500;
  color:var(--ink-2);
  border:1px solid transparent;
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t);
  white-space:nowrap;
}
.nav-chip i{font-size:13px;color:var(--ink-3);transition:color var(--t)}
.nav-chip:hover{
  background:var(--lilac);
  color:var(--brand);
  border-color:rgba(91,43,224,.14);
  text-decoration:none;
  transform:translateY(-1px);
}
.nav-chip:hover i{color:var(--brand)}
.nav-chip.active{
  background:var(--brand);
  color:#fff;
  border-color:var(--brand);
}
.nav-chip.active i{color:#fff}
.nav-right{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  width:44px;height:44px;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink);
  font-size:17px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  transition:background var(--t),color var(--t),border-color var(--t);
}
.nav-toggle:hover{background:var(--lilac);color:var(--brand);border-color:rgba(91,43,224,.2)}
.site-header.is-scrolled .nav-panel{
  background:var(--ink);
  border-color:rgba(255,255,255,.08);
  box-shadow:0 12px 32px rgba(20,18,28,.35);
}
.site-header.is-scrolled .brand-text{color:#fff}
.site-header.is-scrolled .nav-chip{color:rgba(255,255,255,.78)}
.site-header.is-scrolled .nav-chip i{color:rgba(255,255,255,.5)}
.site-header.is-scrolled .nav-chip:hover{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.12)}
.site-header.is-scrolled .nav-chip:hover i{color:var(--lime)}
.site-header.is-scrolled .nav-chip.active{background:var(--brand);color:#fff}
.site-header.is-scrolled .nav-toggle{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.14);color:#fff}

/* 移动端抽屉 */
.mobile-menu{
  background:var(--ink);
  color:#fff;
  width:300px;
  border-left:1px solid rgba(255,255,255,.08);
}
.mobile-menu .offcanvas-header{border-bottom:1px solid rgba(255,255,255,.08);padding:18px 20px}
.mobile-menu .offcanvas-title{color:#fff;font-size:16px;font-weight:700}
.mobile-menu .btn-close{filter:invert(1) grayscale(1);opacity:.7}
.mobile-menu .offcanvas-body{padding:18px 20px 28px}
.mobile-links{display:flex;flex-direction:column;gap:10px}
.mobile-links a{
  display:flex;align-items:center;gap:10px;
  padding:14px 16px;
  border-radius:var(--r-md);
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.08);
  color:rgba(255,255,255,.86);
  font-size:15px;
  min-height:44px;
}
.mobile-links a:hover{background:rgba(91,43,224,.35);color:#fff;text-decoration:none}
.mobile-links a.active{background:var(--brand);border-color:var(--brand);color:#fff}
.mobile-links a i{color:var(--lime);width:18px;text-align:center}

/* ============ 按钮 ============ */
.btn-main,.btn-ghost,.btn-arrow{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-size:15px;
  font-weight:600;
  border-radius:var(--r-md);
  padding:12px 22px;
  border:1px solid transparent;
  cursor:pointer;
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
  text-decoration:none;
  min-height:44px;
}
.btn-main{background:var(--brand);color:#fff}
.btn-main:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);text-decoration:none}
.btn-main:active{background:var(--brand-dark);transform:translateY(0);box-shadow:inset 0 2px 6px rgba(20,18,28,.25)}
.btn-main:focus-visible{outline:2px solid var(--lime);outline-offset:2px}
.btn-main:disabled,.btn-main.disabled{opacity:.45;pointer-events:none}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{background:var(--lilac);color:var(--brand);border-color:rgba(91,43,224,.35);text-decoration:none;transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(20,18,28,.12)}
.btn-ghost:disabled{opacity:.45;pointer-events:none}
.btn-arrow{background:transparent;color:var(--brand);padding:8px 0;min-height:auto}
.btn-arrow i{transition:transform var(--t),color var(--t)}
.btn-arrow:hover{color:var(--brand-dark);text-decoration:none}
.btn-arrow:hover i{transform:translateX(4px);color:var(--lime)}
.btn-arrow:active{transform:translateY(1px)}
.btn-cta-sm{padding:10px 18px;font-size:14.5px}

/* ============ Hero ============ */
.page-hero{
  position:relative;
  overflow:hidden;
  border-radius:0 0 24px 24px;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
  color:#fff;
}
.page-hero::before{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(20,18,28,.94) 0%,rgba(20,18,28,.86) 48%,rgba(91,43,224,.72) 100%);
}
.page-hero::after{
  content:"";
  position:absolute;inset:0;
  background-image:radial-gradient(rgba(198,242,78,.5) 1px,transparent 1px);
  background-size:12px 12px;
  opacity:.05;
  pointer-events:none;
}
.page-hero .container-xl{position:relative;z-index:2}
.hero-inner{padding:64px 0 72px}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:rgba(255,255,255,.6);
  margin-bottom:20px;
}
.crumb a{color:rgba(255,255,255,.72)}
.crumb a:hover{color:var(--lime);text-decoration:underline}
.crumb .sep{color:rgba(255,255,255,.32)}
.crumb .cur{color:rgba(255,255,255,.9);font-weight:600}
.page-hero h1{
  color:#fff;
  font-size:clamp(30px,5vw,50px);
  line-height:1.15;
  font-weight:800;
  max-width:900px;
}
.hero-lead{
  margin-top:18px;
  max-width:640px;
  font-size:17px;
  line-height:1.8;
  color:rgba(255,255,255,.82);
}
.hero-badges{
  display:flex;flex-wrap:wrap;gap:10px;
  margin-top:26px;
}
.badge-pill{
  display:inline-flex;align-items:center;gap:8px;
  height:28px;
  padding:0 14px;
  border-radius:999px;
  font-size:13px;
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.16);
  color:rgba(255,255,255,.9);
  white-space:nowrap;
}
.badge-pill i{color:var(--lime);font-size:12px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.page-hero .btn-ghost{color:#fff;border-color:rgba(255,255,255,.28)}
.page-hero .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.5)}

/* ============ 板块 ============ */
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-head{margin-bottom:40px;max-width:760px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;
  color:var(--brand);
  background:var(--lilac);
  border-radius:999px;
  padding:5px 14px;
  margin-bottom:16px;
}
.eyebrow i{font-size:11px;color:var(--coral)}
.section-head h2{
  font-size:clamp(24px,3.2vw,34px);
  line-height:1.25;
  font-weight:700;
}
.section-head p{margin-top:14px;color:var(--ink-3);font-size:16px}

/* ============ 双栏主区 ============ */
.info-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  overflow:hidden;
  margin-bottom:24px;
  transition:transform var(--t),box-shadow var(--t);
}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.info-card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--lilac)}
.info-card-media img{width:100%;height:100%;object-fit:cover}
.info-card-body{padding:24px}
.info-card-body h3{font-size:20px;font-weight:600;display:flex;align-items:center;gap:10px}
.info-card-body h3 i{color:var(--brand);font-size:16px}
.info-card-body p{margin-top:12px;color:var(--ink-2);font-size:15.5px;line-height:1.85}
.mini-list{margin-top:16px;display:flex;flex-direction:column;gap:10px}
.mini-list li{
  display:flex;gap:10px;
  font-size:15px;color:var(--ink-2);
  line-height:1.75;
}
.mini-list li i{color:var(--brand);font-size:13px;margin-top:7px;flex:0 0 auto}

/* 检查清单卡 */
.checklist{
  position:sticky;
  top:108px;
  background:var(--lilac);
  border:1px solid rgba(91,43,224,.18);
  border-radius:var(--r-lg);
  padding:28px 24px;
}
.checklist-head{
  display:flex;align-items:center;gap:10px;
  font-size:16px;font-weight:700;color:var(--ink);
}
.checklist-head span.icon{
  width:32px;height:32px;border-radius:10px;
  background:var(--brand);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;flex:0 0 auto;
}
.checklist-sub{margin-top:10px;font-size:14px;color:var(--ink-3);line-height:1.7}
.checklist ul{margin-top:20px;display:flex;flex-direction:column;gap:14px}
.checklist li{
  display:flex;gap:12px;
  font-size:15px;color:var(--ink-2);line-height:1.7;
  padding-bottom:14px;
  border-bottom:1px dashed rgba(91,43,224,.2);
}
.checklist li:last-child{border-bottom:0;padding-bottom:0}
.checklist li i{
  color:var(--brand);
  font-size:15px;
  margin-top:5px;
  flex:0 0 auto;
}
.checklist .btn-main{width:100%;margin-top:24px}
.checklist-note{margin-top:14px;font-size:13px;color:var(--ink-3);text-align:center}

/* ============ 异常处理卡 ============ */
.issue-card{
  height:100%;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:26px 24px;
  box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
  display:flex;flex-direction:column;
}
.issue-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(91,43,224,.28)}
.issue-tag{
  display:inline-flex;align-items:center;gap:6px;
  align-self:flex-start;
  height:24px;
  padding:0 10px;
  border-radius:999px;
  font-size:12px;
  background:var(--lilac);
  color:var(--brand);
  font-weight:600;
}
.issue-card h3{margin-top:16px;font-size:18px;font-weight:600}
.issue-card p{margin-top:10px;font-size:15px;color:var(--ink-2);flex:1 1 auto}
.issue-card .btn-arrow{margin-top:18px;font-size:14.5px}

/* ============ 深色 HUD 面板 ============ */
.hud-section{
  background:var(--ink);
  color:#fff;
  padding:88px 0;
  border-radius:24px;
  position:relative;
  overflow:hidden;
}
.hud-section::after{
  content:"";
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:100% 12px;
  opacity:.045;
  pointer-events:none;
}
.hud-section .container-xl{position:relative;z-index:2}
.hud-section h2{color:#fff;font-size:clamp(24px,3.2vw,34px);line-height:1.25;font-weight:700}
.hud-section .hud-lead{margin-top:14px;color:rgba(255,255,255,.7);max-width:640px}
.hud-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:40px}
.hud-cell{
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.08);
  border-radius:var(--r-lg);
  padding:26px 22px;
  transition:background var(--t),border-color var(--t),transform var(--t);
}
.hud-cell:hover{background:rgba(91,43,224,.18);border-color:rgba(198,242,78,.35);transform:translateY(-4px)}
.hud-cell .hud-num{
  font-family:ui-monospace,"DIN Alternate",Menlo,Consolas,monospace;
  font-size:15px;font-weight:700;letter-spacing:.08em;
  color:var(--lime);
}
.hud-cell h3{margin-top:16px;color:#fff;font-size:19px;font-weight:600}
.hud-cell p{margin-top:10px;color:rgba(255,255,255,.68);font-size:14.5px;line-height:1.8}
.hud-row{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  margin-top:18px;padding-top:16px;
  border-top:1px solid rgba(255,255,255,.08);
  font-size:13px;color:rgba(255,255,255,.55);
}
.hud-row .stat{color:var(--lime);font-family:ui-monospace,Menlo,Consolas,monospace;font-weight:700;font-size:13px}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;margin-inline:auto}
.accordion-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg) !important;
  margin-bottom:14px;
  overflow:hidden;
  box-shadow:var(--sh-1);
}
.accordion-button{
  font-size:17px;
  font-weight:600;
  color:var(--ink);
  background:var(--card);
  padding:20px 22px;
  box-shadow:none !important;
  transition:background var(--t-fold),color var(--t-fold);
}
.accordion-button:not(.collapsed){color:var(--brand);background:var(--lilac)}
.accordion-button:focus{box-shadow:0 0 0 3px rgba(91,43,224,.16) !important;z-index:2}
.accordion-button::after{
  width:16px;height:16px;background-size:16px;
  filter:invert(24%) sepia(72%) saturate(4900%) hue-rotate(248deg) brightness(88%) contrast(96%);
  transition:transform var(--t-fold);
}
.accordion-button:not(.collapsed)::after{transform:rotate(180deg)}
.accordion-body{
  padding:18px 22px 24px;
  font-size:15.5px;
  line-height:1.9;
  color:var(--ink-2);
  border-top:1px dashed var(--line);
}

/* ============ CTA ============ */
.cta-band{
  background:linear-gradient(120deg,var(--brand) 0%,#7A4BF0 55%,#4A1FC4 100%);
  border-radius:24px;
  padding:56px 40px;
  color:#fff;
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;right:-40px;top:-40px;
  width:200px;height:200px;border-radius:50%;
  background:radial-gradient(rgba(198,242,78,.35) 1px,transparent 1px);
  background-size:12px 12px;
  opacity:.5;
  pointer-events:none;
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.8vw,30px);font-weight:700;line-height:1.3}
.cta-band p{margin-top:14px;color:rgba(255,255,255,.85);max-width:640px;font-size:15.5px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.cta-band .btn-main{background:#fff;color:var(--brand)}
.cta-band .btn-main:hover{background:var(--lime);color:var(--ink);box-shadow:0 12px 32px rgba(20,18,28,.28)}
.cta-band .btn-ghost{color:#fff;border-color:rgba(255,255,255,.45)}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.16);color:#fff;border-color:#fff}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:96px;
  background:var(--ink);
  color:rgba(255,255,255,.7);
  padding:72px 0 0;
}
.site-footer .container-xl{max-width:var(--container)}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-brand .brand-text{color:#fff;font-size:17px;font-weight:700}
.footer-desc{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.62);max-width:340px}
.footer-social{display:flex;gap:10px;margin-top:22px}
.footer-social a{
  width:38px;height:38px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.1);
  color:rgba(255,255,255,.8);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t);
}
.footer-social a:hover{background:var(--brand);border-color:var(--brand);color:#fff;transform:translateY(-2px);text-decoration:none}
.footer-title{font-size:14.5px;font-weight:700;color:#fff;margin-bottom:18px}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links li{font-size:14px;color:rgba(255,255,255,.6);line-height:1.7}
.footer-links a{color:rgba(255,255,255,.62);border-bottom:2px solid transparent;padding-bottom:2px;transition:color var(--t),border-color var(--t)}
.footer-links a:hover{color:var(--lime);border-bottom-color:var(--lime);text-decoration:none}
.footer-bottom{
  margin-top:56px;
  padding:22px 0;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.48);
}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;
  right:24px;bottom:24px;
  z-index:1030;
  display:inline-flex;align-items:center;gap:8px;
  background:var(--brand);
  color:#fff;
  padding:12px 22px;
  border-radius:999px;
  font-size:14.5px;font-weight:600;
  box-shadow:0 12px 32px rgba(91,43,224,.36);
  transform:translateY(24px);
  opacity:0;
  pointer-events:none;
  transition:transform var(--t),opacity var(--t),background var(--t);
  text-decoration:none;
}
.float-cta.is-visible{transform:translateY(0);opacity:1;pointer-events:auto}
.float-cta:hover{background:var(--brand-dark);color:#fff;text-decoration:none;transform:translateY(-2px)}
.float-cta i{color:var(--lime)}

/* ============ 响应式 ============ */
@media (min-width:1400px){
  :root{--container:1320px}
}
@media (max-width:1199.98px){
  .checklist{position:static;margin-top:8px}
  .hud-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:991.98px){
  .section{padding:72px 0}
  .section-tight{padding:56px 0}
  .hud-section{padding:64px 0;border-radius:18px}
  .cta-band{padding:40px 26px}
}
@media (max-width:767.98px){
  body{padding-top:92px;font-size:15.5px}
  .site-header{top:8px;padding-inline:10px}
  .nav-inner{height:64px;gap:10px}
  .brand-text{font-size:15.5px}
  .brand-mark{width:30px;height:30px;padding:6px}
  .container-xl{padding-inline:16px}
  .hero-inner{padding:44px 0 52px}
  .hud-grid{grid-template-columns:1fr;gap:16px}
  .section{padding:56px 0}
  .section-head{margin-bottom:28px}
  .info-card-body{padding:20px}
  .cta-band{padding:34px 22px;border-radius:18px}
  .float-cta{
    left:0;right:0;bottom:0;
    border-radius:0;
    justify-content:center;
    padding:14px 18px;
    height:56px;
    transform:translateY(100%);
    box-shadow:0 -8px 24px rgba(20,18,28,.18);
  }
  .float-cta.is-visible{transform:translateY(0)}
  .float-cta:hover{transform:translateY(0)}
  .site-footer{margin-top:64px;padding-top:56px}
  .footer-bottom{margin-top:36px;font-size:12.5px}
  .accordion-button{font-size:16px;padding:18px}
  .accordion-body{padding:16px 18px 20px}
}
@media (max-width:575.98px){
  .hero-actions .btn-main,
  .hero-actions .btn-ghost{width:100%}
  .cta-actions .btn-main,
  .cta-actions .btn-ghost{width:100%}
  .badge-pill{font-size:12px;padding:0 11px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: category2 */
:root{
  --primary:#5B2BE0;
  --primary-dark:#4520B8;
  --accent:#C6F24E;
  --alert:#FF6B3D;
  --ink:#14121C;
  --ink-2:#3A3550;
  --muted:#6C6880;
  --line:#E6E4EF;
  --bg:#F6F5FB;
  --card:#FFFFFF;
  --lilac:#F1EDFF;
  --radius-card:16px;
  --radius-sm:10px;
  --radius-btn:12px;
  --radius-img:14px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(20,18,28,.06),0 8px 24px rgba(20,18,28,.06);
  --shadow-2:0 12px 32px rgba(91,43,224,.16);
  --container:1200px;
  --t:240ms;
  --t-fast:200ms;
  --font-sans:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-mono:ui-monospace,"DIN Alternate","SFMono-Regular",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--primary-dark);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:3px}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;color:var(--ink)}
p{margin:0}
ul,ol{margin:0}
button{font-family:inherit}
section{scroll-margin-top:112px}
.mono{font-family:var(--font-mono);font-weight:700;letter-spacing:.02em}

/* ============ 容器 ============ */
.wrap{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
@media(min-width:1400px){
  .wrap{max-width:1320px}
}

/* ============ 顶部导航 ============ */
.site-header{
  position:fixed;top:12px;left:0;right:0;z-index:1040;padding:0 16px;
}
.nav-shell{
  max-width:var(--container);margin:0 auto;height:72px;
  display:flex;align-items:center;gap:14px;
  padding:0 14px 0 18px;
  background:#fff;border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--shadow-1);
  transition:background var(--t),border-color var(--t),box-shadow var(--t);
}
@media(min-width:1400px){
  .nav-shell{max-width:1320px}
}
.site-header.scrolled .nav-shell{
  background:var(--ink);border-color:rgba(255,255,255,.08);
  box-shadow:0 12px 32px rgba(20,18,28,.28);
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;text-decoration:none}
.brand:hover{text-decoration:none}
.brand-mark{display:grid;grid-template-columns:repeat(2,7px);grid-template-rows:repeat(2,7px);gap:3px}
.brand-mark i{display:block;width:7px;height:7px;border-radius:2px;background:var(--primary)}
.brand-mark i:nth-child(2),.brand-mark i:nth-child(3){background:var(--accent)}
.brand-text{font-size:16px;font-weight:800;color:var(--ink);letter-spacing:.01em;white-space:nowrap}
.site-header.scrolled .brand-text{color:#fff}
.nav-links{
  display:flex;align-items:center;gap:6px;flex:1 1 auto;
  margin-left:6px;overflow-x:auto;scrollbar-width:none;
}
.nav-links::-webkit-scrollbar{display:none}
.nav-chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 13px;border-radius:10px;
  font-size:14px;font-weight:600;color:var(--ink-2);
  border:1px solid transparent;background:transparent;white-space:nowrap;
  transition:background var(--t),color var(--t),border-color var(--t);
}
.nav-chip i{font-size:13px;color:var(--primary);transition:color var(--t)}
.nav-chip:hover{background:var(--lilac);color:var(--primary);border-color:#E2D9FF;text-decoration:none}
.nav-chip.active{background:var(--primary);color:#fff}
.nav-chip.active i{color:#fff}
.site-header.scrolled .nav-chip{color:rgba(255,255,255,.78);border-color:transparent}
.site-header.scrolled .nav-chip i{color:rgba(198,242,78,.9)}
.site-header.scrolled .nav-chip:hover{background:rgba(198,242,78,.12);color:var(--accent);border-color:rgba(198,242,78,.22)}
.site-header.scrolled .nav-chip.active{background:var(--primary);color:#fff}
.site-header.scrolled .nav-chip.active i{color:#fff}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:#fff;color:var(--ink);
  align-items:center;justify-content:center;font-size:16px;
  transition:background var(--t),color var(--t),border-color var(--t);
}
.site-header.scrolled .nav-toggle{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.12);color:#fff}

/* ============ 按钮 ============ */
.btn-main,.btn-ghost,.btn-ghost-light,.btn-arrow{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;border-radius:var(--radius-btn);
  padding:12px 22px;cursor:pointer;border:1px solid transparent;
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
}
.btn-main{background:var(--primary);color:#fff}
.btn-main:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);text-decoration:none}
.btn-main:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(0,0,0,.22)}
.btn-main:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.btn-main[disabled],.btn-main.disabled{opacity:.45;pointer-events:none}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{background:var(--lilac);color:var(--primary);border-color:#CFC2FF;text-decoration:none}
.btn-ghost:active{transform:translateY(1px)}
.btn-ghost:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.btn-ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.3)}
.btn-ghost-light:hover{background:rgba(198,242,78,.12);color:var(--accent);border-color:rgba(198,242,78,.5);text-decoration:none}
.btn-ghost-light:active{transform:translateY(1px)}
.btn-ghost-light:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.btn-arrow{background:transparent;color:var(--primary);padding:6px 0;border:none}
.btn-arrow i{transition:transform var(--t),color var(--t)}
.btn-arrow:hover{color:var(--primary-dark);text-decoration:none}
.btn-arrow:hover i{transform:translateX(4px);color:var(--accent)}
.btn-arrow:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}
.btn-sm{padding:10px 18px;font-size:14px}

/* ============ 页面首屏 ============ */
.page-hero{
  position:relative;isolation:isolate;overflow:hidden;
  background:var(--ink);padding:140px 0 88px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;z-index:-2;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  opacity:.34;
}
.page-hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(115deg,rgba(20,18,28,.97) 0%,rgba(20,18,28,.84) 46%,rgba(91,43,224,.55) 100%);
}
.crumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:rgba(255,255,255,.6)}
.crumb a{color:rgba(255,255,255,.72)}
.crumb a:hover{color:var(--accent);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:3px}
.crumb .sep{color:rgba(255,255,255,.32)}
.crumb .current{color:rgba(255,255,255,.9)}
.hero-title{
  color:#fff;font-size:clamp(30px,5vw,52px);line-height:1.15;font-weight:800;
  margin:18px 0 0;max-width:920px;
}
.hero-lead{
  color:rgba(255,255,255,.84);font-size:17px;line-height:1.8;
  margin-top:18px;max-width:700px;
}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.badge-pill{
  display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;
  border-radius:var(--radius-pill);background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.14);color:rgba(255,255,255,.9);
  font-size:13px;white-space:nowrap;
}
.badge-pill i{color:var(--accent);font-size:12px}
.badge-pill b{font-family:var(--font-mono);font-weight:700;color:var(--accent);letter-spacing:.02em}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}

/* ============ 通用板块 ============ */
.section{padding:88px 0}
.section-soft{background:linear-gradient(180deg,#FFFFFF 0%,var(--bg) 100%)}
.section-head{max-width:760px;margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.08em;
  color:var(--primary);background:var(--lilac);
  border:1px solid #E2D9FF;border-radius:var(--radius-pill);
  padding:6px 14px;
}
.section-title{font-size:clamp(24px,3.2vw,36px);font-weight:700;margin-top:16px}
.section-sub{color:var(--muted);font-size:15.5px;margin-top:14px;line-height:1.85}

/* ============ 分步编号卡 ============ */
.step-list{list-style:none;padding:0;display:grid;gap:20px}
.step-card{
  display:grid;grid-template-columns:112px minmax(0,1fr);gap:24px;
  padding:30px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-1);
  transition:box-shadow var(--t),transform var(--t),border-color var(--t);
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#DDD2FF}
.step-num{
  font-family:var(--font-mono);font-size:48px;font-weight:800;line-height:1;
  color:var(--primary);letter-spacing:.02em;padding-top:2px;
}
.step-num::after{
  content:"";display:block;width:34px;height:4px;margin-top:14px;
  border-radius:2px;background:var(--accent);
}
.step-body h3{font-size:20px;font-weight:600;margin-bottom:10px}
.step-body > p{color:var(--ink-2);font-size:15.5px;line-height:1.85;margin-bottom:14px}
.tick-list{list-style:none;padding:0;display:grid;gap:9px;margin-bottom:18px}
.tick-list li{display:flex;gap:10px;font-size:14.5px;line-height:1.75;color:var(--ink-2)}
.tick-list li i{color:var(--primary);font-size:12px;margin-top:7px;flex:0 0 auto}
.step-media{
  margin-top:16px;max-width:560px;border-radius:var(--radius-img);
  overflow:hidden;border:1px solid var(--line);background:var(--lilac);
}
.step-media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.step-tip{
  display:flex;gap:10px;align-items:flex-start;margin-top:16px;
  padding:12px 16px;border-radius:var(--radius-sm);
  background:var(--lilac);border-left:4px solid var(--primary);
  font-size:14px;color:var(--ink-2);line-height:1.75;
}
.step-tip i{color:var(--primary);margin-top:6px;font-size:13px}

/* ============ 设备与要求（非对称栅格）============ */
.fit-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:20px}
.fit-main{
  grid-row:1 / span 2;display:flex;flex-direction:column;
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:34px;box-shadow:var(--shadow-1);
}
.fit-main h3{font-size:22px;font-weight:700;margin-bottom:12px}
.fit-main > p{color:var(--ink-2);font-size:15.5px;margin-bottom:20px}
.fit-main .check-list{margin-bottom:24px}
.check-list{list-style:none;padding:0;display:grid;gap:12px}
.check-list li{display:flex;gap:12px;font-size:15px;line-height:1.75;color:var(--ink-2)}
.check-list li i{
  flex:0 0 auto;width:20px;height:20px;border-radius:6px;margin-top:5px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--primary);color:#fff;font-size:11px;
}
.fit-main .btn-arrow{margin-top:auto;align-self:flex-start}
.fit-card{
  background:var(--lilac);border:1px solid #E2D9FF;
  border-radius:var(--radius-card);padding:26px;
}
.fit-card .fit-icon{
  width:44px;height:44px;border-radius:12px;background:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--primary);font-size:17px;margin-bottom:16px;
  box-shadow:0 1px 2px rgba(20,18,28,.06);
}
.fit-card h3{font-size:17px;font-weight:600;margin-bottom:10px}
.fit-card p{color:var(--ink-2);font-size:14.5px;line-height:1.8}
.fit-card .fit-meta{
  display:inline-flex;align-items:center;gap:6px;margin-top:14px;
  font-family:var(--font-mono);font-size:13px;font-weight:700;color:var(--primary);
}

/* ============ 深色核对面板 ============ */
.dark-panel{
  position:relative;overflow:hidden;background:var(--ink);
  padding:88px 0;
  border-top:1px solid rgba(255,255,255,.06);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.dark-panel::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(620px 320px at 12% 0%,rgba(91,43,224,.42),transparent 70%),
    radial-gradient(520px 300px at 88% 100%,rgba(198,242,78,.10),transparent 70%);
}
.dark-panel .wrap{position:relative;z-index:1}
.panel-head{max-width:720px}
.panel-head h2{color:#fff;font-size:clamp(24px,3.2vw,34px);font-weight:700}
.panel-head p{color:rgba(255,255,255,.7);font-size:15.5px;margin-top:14px}
.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:40px}
.stat-card{
  background:rgba(255,255,255,.045);border:1px solid rgba(255,255,255,.08);
  border-radius:var(--radius-card);padding:28px 24px;
  transition:border-color var(--t),background var(--t);
}
.stat-card:hover{background:rgba(255,255,255,.07);border-color:rgba(198,242,78,.28)}
.stat-num{
  font-family:var(--font-mono);font-size:clamp(26px,3.4vw,38px);font-weight:800;
  color:var(--accent);letter-spacing:.02em;line-height:1.1;
}
.stat-label{color:rgba(255,255,255,.68);font-size:14px;margin-top:10px}
.panel-notes{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:32px}
.panel-note{display:flex;gap:12px;font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.72)}
.panel-note i{color:var(--accent);font-size:13px;margin-top:8px;flex:0 0 auto}

/* ============ FAQ ============ */
.faq-wrap{max-width:880px;margin:0 auto}
.faq-acc .accordion-item{
  border:1px solid var(--line);border-radius:14px !important;
  overflow:hidden;margin-bottom:14px;background:#fff;box-shadow:var(--shadow-1);
}
.faq-acc .accordion-button{
  font-size:17px;font-weight:600;color:var(--ink);
  padding:20px 22px;background:#fff;box-shadow:none;line-height:1.6;
}
.faq-acc .accordion-button:not(.collapsed){
  background:var(--lilac);color:var(--primary);box-shadow:none;
}
.faq-acc .accordion-button:focus{box-shadow:inset 0 0 0 2px rgba(91,43,224,.25);border-color:transparent}
.faq-acc .accordion-button::after{
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:13px;color:var(--alert);background-image:none;
  width:auto;height:auto;margin-left:auto;
  transition:transform var(--t-fast);
}
.faq-acc .accordion-button:not(.collapsed)::after{transform:rotate(180deg)}
.faq-acc .accordion-body{
  padding:18px 22px 22px;color:var(--ink-2);font-size:15.5px;line-height:1.85;
  border-top:1px dashed #DEDAF0;
}

/* ============ CTA ============ */
.cta-wrap{padding:0 24px 88px}
.cta-block{
  position:relative;overflow:hidden;max-width:1200px;margin:0 auto;
  background:var(--ink);border:1px solid rgba(255,255,255,.08);
  border-radius:24px;padding:64px 44px;text-align:center;
}
@media(min-width:1400px){.cta-block{max-width:1320px}}
.cta-block::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(680px 320px at 78% 12%,rgba(91,43,224,.5),transparent 70%);
}
.cta-inner{position:relative;z-index:1}
.cta-block h2{color:#fff;font-size:clamp(24px,3.2vw,34px);font-weight:700}
.cta-block p{color:rgba(255,255,255,.74);font-size:15.5px;max-width:660px;margin:16px auto 30px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;right:24px;bottom:28px;z-index:1035;
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 22px;border-radius:var(--radius-pill);
  background:var(--primary);color:#fff;font-size:15px;font-weight:600;
  box-shadow:0 12px 32px rgba(91,43,224,.38);
  opacity:0;transform:translateY(14px);pointer-events:none;
  transition:opacity var(--t),transform var(--t),background var(--t);
}
.float-cta.show{opacity:1;transform:none;pointer-events:auto}
.float-cta:hover{background:var(--primary-dark);color:#fff;text-decoration:none}
.float-cta:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink);color:rgba(255,255,255,.72);
  padding:72px 0 0;border-top:1px solid rgba(255,255,255,.06);
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.site-footer .footer-brand .brand-mark i{background:var(--accent)}
.site-footer .footer-brand .brand-mark i:nth-child(1),
.site-footer .footer-brand .brand-mark i:nth-child(4){background:var(--primary)}
.site-footer .footer-brand .brand-text{color:#fff}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:340px;margin-bottom:20px}
.footer-social{display:flex;gap:10px}
.footer-social a{
  width:38px;height:38px;border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.08);
  color:rgba(255,255,255,.8);transition:background var(--t),color var(--t),border-color var(--t);
}
.footer-social a:hover{
  background:rgba(198,242,78,.14);color:var(--accent);
  border-color:rgba(198,242,78,.3);text-decoration:none;
}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-links{list-style:none;padding:0}
.footer-links li{font-size:14px;color:rgba(255,255,255,.62);margin-bottom:11px;line-height:1.7}
.footer-links a{color:rgba(255,255,255,.72)}
.footer-links a:hover{
  color:var(--accent);text-decoration:underline;
  text-decoration-thickness:2px;text-underline-offset:3px;
}
.footer-bottom{
  margin-top:48px;padding:22px 0 28px;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ============ 移动端导航 ============ */
.mobile-nav{background:var(--bg);width:320px}
.mobile-nav .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px}
.mobile-nav .brand-text{font-size:15px}
.mobile-nav .offcanvas-body{padding:18px 16px}
.mobile-link{
  display:flex;align-items:center;gap:12px;
  padding:14px 16px;border-radius:12px;margin-bottom:8px;
  font-size:15px;font-weight:600;color:var(--ink-2);
  background:#fff;border:1px solid var(--line);
  transition:background var(--t),color var(--t),border-color var(--t);
}
.mobile-link i{color:var(--primary);font-size:14px;width:18px;text-align:center}
.mobile-link:hover{background:var(--lilac);color:var(--primary);text-decoration:none}
.mobile-link.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.mobile-link.active i{color:#fff}
.mobile-cta{padding:16px 20px 24px;border-top:1px solid var(--line);background:#fff}
.mobile-cta .btn-main{width:100%}

/* ============ 响应式 ============ */
@media(max-width:1199.98px){
  .nav-chip{padding:8px 11px;font-size:13.5px}
}
@media(max-width:991.98px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .nav-actions .btn-main{display:none}
  .nav-shell{height:64px;padding:0 10px 0 14px}
  .page-hero{padding:124px 0 68px}
  .section{padding:64px 0}
  .fit-grid{grid-template-columns:1fr}
  .fit-main{grid-row:auto}
  .stat-grid{grid-template-columns:1fr 1fr}
  .panel-notes{grid-template-columns:1fr}
  .cta-wrap{padding:0 20px 64px}
  .cta-block{padding:48px 26px;border-radius:20px}
}
@media(max-width:767.98px){
  .stat-grid{grid-template-columns:1fr}
  .step-card{grid-template-columns:1fr;gap:12px;padding:22px}
  .step-num{font-size:34px}
  .step-num::after{width:28px;height:3px;margin-top:10px}
  .section-head{margin-bottom:32px}
}
@media(max-width:575.98px){
  body{font-size:15px}
  .wrap{padding:0 16px}
  .page-hero{padding:112px 0 56px}
  .hero-lead{font-size:15.5px}
  .section{padding:56px 0}
  .hero-actions .btn-main,.hero-actions .btn-ghost-light{width:100%}
  .cta-actions .btn-main,.cta-actions .btn-ghost-light{width:100%}
  .cta-wrap{padding:0 16px 72px}
  .float-cta{
    left:12px;right:12px;bottom:12px;justify-content:center;
    height:52px;padding:0 16px;border-radius:14px;
  }
  .site-footer{padding-bottom:72px}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{transition:none !important;animation:none !important}
}

/* roulang page: category4 */
:root{
  --primary:#5B2BE0;
  --primary-dark:#4318B8;
  --accent:#C6F24E;
  --alert:#FF6B3D;
  --ink:#14121C;
  --gray-1:#3A3550;
  --gray-2:#6C6880;
  --line:#E6E4EF;
  --page:#F6F5FB;
  --card:#FFFFFF;
  --lilac:#F1EDFF;
  --r-card:16px;
  --r-sm:10px;
  --r-btn:12px;
  --r-img:14px;
  --sh-1:0 1px 2px rgba(20,18,28,.06),0 8px 24px rgba(20,18,28,.06);
  --sh-2:0 12px 32px rgba(91,43,224,.16);
  --sp-1:8px;--sp-2:16px;--sp-3:24px;--sp-4:32px;--sp-5:48px;--sp-6:64px;--sp-7:96px;
  --t:240ms;
  --t-fold:200ms;
  --mono:ui-monospace,"SFMono-Regular","DIN Alternate",Menlo,Consolas,monospace;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
  padding-bottom:0;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color var(--t),border-color var(--t),background-color var(--t);}
a:hover{color:var(--primary-dark);text-decoration:underline;text-decoration-color:var(--accent);text-decoration-thickness:2px;text-underline-offset:4px;}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;color:var(--ink);}
p{margin:0 0 1em;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
.container-xl{padding-left:24px;padding-right:24px;}
@media (min-width:1200px){.container-xl{max-width:1200px;}}
@media (min-width:1400px){.container-xl{max-width:1320px;}}
@media (max-width:575px){.container-xl{padding-left:16px;padding-right:16px;}}
.mono{font-family:var(--mono);font-weight:700;letter-spacing:.02em;}
.section{padding:96px 0;}
.section-sm{padding:64px 0;}
@media (max-width:767px){.section{padding:56px 0;}.section-sm{padding:40px 0;}}
.sec-head{max-width:760px;margin-bottom:var(--sp-4);}
.sec-kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--primary);background:var(--lilac);border-radius:999px;padding:5px 14px;margin-bottom:14px;}
.sec-kicker i{color:var(--alert);}
.sec-title{font-size:clamp(24px,3.2vw,36px);font-weight:700;margin-bottom:12px;}
.sec-desc{color:var(--gray-1);font-size:16px;margin:0;}

/* ===== header / nav ===== */
.site-header{position:sticky;top:12px;z-index:1040;padding:0 16px;}
@media (max-width:575px){.site-header{padding:0 10px;top:8px;}}
.nav-panel{
  max-width:1320px;margin:0 auto;min-height:72px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:var(--card);border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--sh-1);padding:10px 18px;
  transition:background-color var(--t),border-color var(--t),box-shadow var(--t);
}
.site-header.scrolled .nav-panel{background:var(--ink);border-color:rgba(255,255,255,.08);box-shadow:0 12px 28px rgba(20,18,28,.28);}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none!important;}
.brand-mark{display:grid;grid-template-columns:repeat(2,7px);grid-template-rows:repeat(2,7px);gap:3px;}
.brand-mark i{display:block;width:7px;height:7px;border-radius:2px;background:var(--primary);}
.brand-mark i:nth-child(2){background:var(--accent);}
.brand-mark i:nth-child(3){background:var(--alert);}
.brand-text{font-size:17px;font-weight:800;color:var(--ink);letter-spacing:.01em;white-space:nowrap;}
.site-header.scrolled .brand-text{color:#fff;}
.nav-links{display:flex;align-items:center;gap:6px;flex-wrap:wrap;}
.nav-chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 14px;border-radius:10px;font-size:14px;font-weight:600;
  color:var(--gray-1);border:1px solid transparent;background:transparent;
  transition:background-color var(--t),color var(--t),border-color var(--t);
}
.nav-chip i{font-size:13px;color:var(--gray-2);transition:color var(--t);}
.nav-chip:hover{background:var(--lilac);color:var(--primary);border-color:#E1D8FF;text-decoration:none;}
.nav-chip:hover i{color:var(--primary);}
.nav-chip.active{background:var(--primary);color:#fff;border-color:var(--primary);}
.nav-chip.active i{color:#fff;}
.site-header.scrolled .nav-chip{color:rgba(255,255,255,.78);}
.site-header.scrolled .nav-chip i{color:rgba(255,255,255,.55);}
.site-header.scrolled .nav-chip:hover{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.12);}
.site-header.scrolled .nav-chip.active{background:var(--primary);color:#fff;border-color:var(--primary);}
.nav-right{display:flex;align-items:center;gap:12px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);padding:12px 22px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;text-decoration:none!important;
  transition:background-color var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
}
.btn-brand{background:var(--primary);color:#fff;}
.btn-brand:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-brand:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(20,18,28,.28);}
.btn-brand:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.btn-brand:disabled,.btn-brand.disabled{opacity:.45;pointer-events:none;}
.btn-line{background:transparent;color:var(--ink);border-color:var(--line);}
.btn-line:hover{color:var(--primary);border-color:var(--primary);background:var(--lilac);}
.btn-line:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.btn-line:disabled{opacity:.45;pointer-events:none;}
.btn-arrow{background:transparent;color:var(--primary);border:none;padding:6px 0;font-weight:600;}
.btn-arrow i{transition:transform var(--t),color var(--t);}
.btn-arrow:hover{color:var(--primary-dark);text-decoration:none;}
.btn-arrow:hover i{transform:translateX(4px);color:var(--accent);}
.btn-arrow:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px;}
.hamburger{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:var(--card);color:var(--ink);display:inline-flex;align-items:center;justify-content:center;
  font-size:17px;cursor:pointer;transition:background-color var(--t),color var(--t),border-color var(--t);
}
.hamburger:hover{background:var(--lilac);color:var(--primary);}
.site-header.scrolled .hamburger{background:transparent;color:#fff;border-color:rgba(255,255,255,.16);}
.mobile-nav{background:var(--card);width:312px;}
.mobile-nav .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px;}
.mobile-nav .offcanvas-body{padding:18px 20px 28px;}
.mobile-nav .nav-chip{width:100%;justify-content:flex-start;margin-bottom:8px;padding:13px 14px;background:var(--page);border:1px solid var(--line);}
.mobile-nav .nav-chip.active{background:var(--primary);color:#fff;border-color:var(--primary);}

/* ===== hero ===== */
.hero-wrap{padding-top:28px;}
.hero{
  position:relative;border-radius:24px;overflow:hidden;color:#fff;
  background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  border:1px solid rgba(255,255,255,.06);
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(20,18,28,.94) 0%,rgba(20,18,28,.8) 46%,rgba(91,43,224,.62) 100%);
}
.hero::after{
  content:"";position:absolute;right:-40px;top:-40px;width:260px;height:260px;
  background-image:radial-gradient(rgba(198,242,78,.55) 1.5px,transparent 1.5px);
  background-size:12px 12px;opacity:.06;pointer-events:none;
}
.hero-inner{position:relative;z-index:2;padding:72px 56px;max-width:900px;}
.hero h1{color:#fff;font-size:clamp(30px,5vw,52px);line-height:1.15;font-weight:800;margin-bottom:18px;}
.hero-sub{font-size:clamp(16px,1.6vw,19px);color:rgba(255,255,255,.86);max-width:640px;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:28px;}
.btn-hero-line{background:rgba(255,255,255,.06);color:#fff;border-color:rgba(255,255,255,.28);}
.btn-hero-line:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;}
.badge-pill{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;
  border-radius:999px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);
  font-size:13px;color:rgba(255,255,255,.92);
}
.badge-pill i{color:var(--accent);font-size:11px;}
@media (max-width:767px){.hero-inner{padding:44px 22px;}}

/* ===== breadcrumb ===== */
.crumb{font-size:13px;color:var(--gray-2);padding:18px 0 0;display:flex;flex-wrap:wrap;gap:6px;align-items:center;}
.crumb a{color:var(--gray-2);}
.crumb a:hover{color:var(--primary);}
.crumb .sep{color:#C9C5DA;}
.crumb .now{color:var(--gray-1);font-weight:600;}

/* ===== magazine grid ===== */
.mag-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.mag-a{grid-column:span 7;}
.mag-b{grid-column:span 5;}
.mag-c{grid-column:span 5;}
.mag-d{grid-column:span 7;}
.mag-e{grid-column:span 12;}
@media (max-width:991px){.mag-a,.mag-b,.mag-c,.mag-d,.mag-e{grid-column:span 12;}}
.card-soft{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.card-soft:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#DCD3FF;}
.mag-media{overflow:hidden;}
.mag-media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;transition:transform 420ms ease;}
.card-soft:hover .mag-media img{transform:scale(1.03);}
.mag-body{padding:24px;}
.mag-body h3{font-size:20px;margin-bottom:10px;}
.mag-body p{color:var(--gray-1);font-size:15px;margin-bottom:12px;}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:600;background:var(--lilac);color:var(--primary);margin-bottom:12px;
}
.tag.accent{background:rgba(198,242,78,.28);color:#3F5309;}
.tag.alert{background:rgba(255,107,61,.14);color:#B23A12;}
.dot-list li{position:relative;padding-left:20px;font-size:15px;color:var(--gray-1);margin-bottom:8px;line-height:1.75;}
.dot-list li::before{
  content:"";position:absolute;left:0;top:.68em;width:8px;height:8px;border-radius:2px;
  background:var(--accent);box-shadow:0 0 0 1px rgba(91,43,224,.14);
}
.mag-wide{display:grid;grid-template-columns:1.05fr 1fr;align-items:center;}
.mag-wide .mag-media img{aspect-ratio:4/3;height:100%;}
.mag-wide .mag-body{padding:32px;}
@media (max-width:767px){.mag-wide{grid-template-columns:1fr;}.mag-wide .mag-media img{aspect-ratio:16/9;}}

/* ===== HUD panel ===== */
.hud{
  position:relative;border-radius:20px;overflow:hidden;color:#fff;
  background:var(--ink) url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  border:1px solid rgba(255,255,255,.08);padding:48px;
}
.hud::before{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(20,18,28,.96),rgba(20,18,28,.86) 55%,rgba(91,43,224,.5));}
.hud>*{position:relative;z-index:2;}
.hud h2{color:#fff;font-size:clamp(22px,2.6vw,30px);margin-bottom:10px;}
.hud .hud-desc{color:rgba(255,255,255,.72);max-width:620px;margin-bottom:32px;font-size:15px;}
.hud-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:36px;}
.hud-stat{
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);
  border-radius:14px;padding:20px;
}
.hud-stat .num{font-family:var(--mono);font-size:30px;font-weight:700;color:var(--accent);line-height:1.2;}
.hud-stat .lbl{font-size:13px;color:rgba(255,255,255,.68);margin-top:6px;}
.hud-timeline{border-left:2px solid rgba(255,255,255,.14);padding-left:26px;}
.hud-node{position:relative;padding-bottom:24px;}
.hud-node:last-child{padding-bottom:0;}
.hud-node::before{
  content:"";position:absolute;left:-33px;top:8px;width:12px;height:12px;border-radius:3px;
  background:var(--accent);box-shadow:0 0 0 4px rgba(198,242,78,.14);
}
.hud-node .t{font-family:var(--mono);font-size:14px;color:var(--accent);margin-bottom:4px;}
.hud-node h3{color:#fff;font-size:17px;margin-bottom:6px;}
.hud-node p{color:rgba(255,255,255,.68);font-size:14px;margin:0;line-height:1.8;}
@media (max-width:767px){.hud{padding:28px 20px;}.hud-stats{grid-template-columns:1fr;}}

/* ===== compare panel ===== */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.compare-col{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-1);}
.compare-col h3{font-size:18px;display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.compare-col.bad .dot{width:10px;height:10px;border-radius:3px;background:var(--alert);}
.compare-col.good .dot{width:10px;height:10px;border-radius:3px;background:var(--accent);}
.compare-col.bad{border-top:3px solid var(--alert);}
.compare-col.good{border-top:3px solid var(--accent);}
.compare-col li{font-size:15px;color:var(--gray-1);padding:10px 0;border-bottom:1px dashed var(--line);line-height:1.75;}
.compare-col li:last-child{border-bottom:none;}
@media (max-width:767px){.compare{grid-template-columns:1fr;}}

/* ===== faq ===== */
.faq-wrap{max-width:820px;margin:0 auto;}
.faq-acc .accordion-item{
  border:1px solid var(--line);border-radius:var(--r-card);margin-bottom:14px;overflow:hidden;background:var(--card);
  box-shadow:var(--sh-1);
}
.faq-acc .accordion-button{
  font-size:18px;font-weight:600;color:var(--ink);background:var(--card);
  padding:20px 24px;box-shadow:none!important;line-height:1.5;
}
.faq-acc .accordion-button:not(.collapsed){color:var(--primary);background:var(--lilac);}
.faq-acc .accordion-button::after{
  background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%23FF6B3D' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M3 6l5 5 5-5'/%3E%3C/svg%3E");
  transition:transform var(--t-fold);
}
.faq-acc .accordion-button:focus-visible{outline:2px solid var(--accent);outline-offset:-2px;}
.faq-acc .accordion-body{
  padding:18px 40px 24px;color:var(--gray-1);font-size:15.5px;
  border-top:1px dashed var(--line);line-height:1.9;
}
@media (max-width:575px){.faq-acc .accordion-button{font-size:16px;padding:16px;}.faq-acc .accordion-body{padding:14px 18px 20px;}}

/* ===== CTA ===== */
.cta-block{
  position:relative;border-radius:20px;overflow:hidden;color:#fff;padding:56px 48px;
  background:var(--ink) url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  border:1px solid rgba(255,255,255,.08);
}
.cta-block::before{content:"";position:absolute;inset:0;background:linear-gradient(110deg,rgba(91,43,224,.92),rgba(20,18,28,.88));}
.cta-block>*{position:relative;z-index:2;}
.cta-block h2{color:#fff;font-size:clamp(22px,2.8vw,32px);margin-bottom:12px;}
.cta-block p{color:rgba(255,255,255,.8);max-width:620px;margin-bottom:24px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
@media (max-width:767px){.cta-block{padding:32px 20px;}}

/* ===== float cta ===== */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:1050;
  display:inline-flex;align-items:center;gap:10px;
  background:var(--primary);color:#fff;border-radius:999px;padding:14px 24px;
  font-weight:600;font-size:15px;box-shadow:var(--sh-2);
  opacity:0;transform:translateY(14px);pointer-events:none;
  transition:opacity var(--t),transform var(--t),background-color var(--t);
}
.float-cta.show{opacity:1;transform:translateY(0);pointer-events:auto;}
.float-cta:hover{background:var(--primary-dark);color:#fff;text-decoration:none;}
@media (max-width:767px){
  .float-cta{right:0;left:0;bottom:0;border-radius:0;justify-content:center;height:56px;padding:0 16px;}
  body{padding-bottom:56px;}
}

/* ===== footer ===== */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:72px 0 0;margin-top:96px;border-top:1px solid rgba(255,255,255,.06);}
.site-footer .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.site-footer .brand-text{color:#fff;font-size:17px;font-weight:800;}
.footer-desc{font-size:14px;color:rgba(255,255,255,.6);line-height:1.9;max-width:340px;margin-bottom:20px;}
.footer-social{display:flex;gap:10px;}
.footer-social a{
  width:38px;height:38px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);color:rgba(255,255,255,.75);
  transition:background-color var(--t),color var(--t),border-color var(--t);
}
.footer-social a:hover{background:var(--primary);color:#fff;border-color:var(--primary);text-decoration:none;}
.footer-title{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;}
.footer-links li{margin-bottom:10px;}
.footer-links a{color:rgba(255,255,255,.66);font-size:14px;border-bottom:2px solid transparent;padding-bottom:2px;transition:color var(--t),border-color var(--t);}
.footer-links a:hover{color:#fff;border-bottom-color:var(--accent);text-decoration:none;}
.footer-links li span{font-size:14px;color:rgba(255,255,255,.6);line-height:1.8;}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.08);padding:22px 0;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.5);
}
@media (max-width:767px){.site-footer{padding-top:48px;margin-top:56px;}.footer-bottom{flex-direction:column;}}

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