/* roulang page: index */
:root{
  --brand:#5B3BFF;
  --brand-light:#7A5CFF;
  --neon:#00D9A6;
  --warm:#FF6A3D;
  --ink:#0B0D18;
  --ink-2:#141830;
  --page:#F4F5FB;
  --card:#FFFFFF;
  --line:#E6E8F0;
  --text:#10132A;
  --text-sub:#5C6480;
  --text-mute:#8A90A6;
  --dark-line:rgba(255,255,255,.08);
  --dark-text:#F2F4FF;
  --dark-sub:#A8AFC9;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --r-xl:28px;
  --sh-sm:0 1px 2px rgba(16,19,42,.06);
  --sh-md:0 8px 24px -12px rgba(91,59,255,.25);
  --sh-lg:0 24px 60px -24px rgba(91,59,255,.35);
  --sh-dark:0 20px 50px -20px rgba(0,0,0,.6);
  --ease:cubic-bezier(.2,.7,.3,1);
  --grad:linear-gradient(120deg,#5B3BFF 0%,#00D9A6 100%);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--page);color:var(--text);font-family:system-ui,"PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block;border-radius:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
input{font-family:inherit}
h1,h2,h3,h4{margin:0;letter-spacing:-0.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.num{font-variant-numeric:tabular-nums}

.container-page{width:100%;max-width:1280px;margin:0 auto;padding-left:20px;padding-right:20px}
@media (min-width:768px){.container-page{padding-left:24px;padding-right:24px}}
@media (min-width:1024px){.container-page{padding-left:32px;padding-right:32px}}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:70;background:rgba(11,13,24,.9);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--dark-line);transition:background .25s var(--ease),box-shadow .25s var(--ease)}
.site-header.is-scrolled{background:rgba(11,13,24,.97);box-shadow:0 16px 40px -24px rgba(0,0,0,.95)}
.brand-logo{display:flex;align-items:center;gap:10px;min-width:0}
.brand-mark{width:34px;height:34px;flex:0 0 34px;border-radius:12px;background:var(--grad);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:16px;box-shadow:0 10px 22px -12px rgba(91,59,255,.9)}
.brand-name{color:var(--dark-text);font-weight:700;font-size:14px;letter-spacing:-.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
@media (min-width:1024px){.brand-name{font-size:17px}}
.hotword{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;background:rgba(255,106,61,.12);color:#FFB79B;font-size:13px;font-weight:600;transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease)}
.hotword:hover{background:var(--warm);color:#fff;transform:translateY(-1px)}
.nav-icon-btn{width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;border-radius:14px;border:1px solid var(--dark-line);background:rgba(255,255,255,.04);color:var(--dark-text);cursor:pointer;transition:background .2s var(--ease),border-color .2s var(--ease)}
.nav-icon-btn:hover{background:rgba(255,255,255,.1);border-color:rgba(122,92,255,.5)}
.search-box{display:flex;align-items:center;gap:6px;height:44px;width:210px;padding:0 6px 0 16px;border-radius:999px;background:rgba(255,255,255,.06);border:1px solid var(--dark-line);transition:width .28s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease)}
.search-box:focus-within{width:320px;border-color:var(--brand-light);box-shadow:0 0 0 3px rgba(91,59,255,.25)}
.search-box input{flex:1;min-width:0;background:transparent;border:0;outline:none;color:var(--dark-text);font-size:14px}
.search-box input::placeholder{color:var(--dark-sub)}
.search-box button{width:34px;height:34px;flex:0 0 34px;border:0;border-radius:999px;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:filter .2s var(--ease)}
.search-box button:hover{filter:brightness(1.1)}
.channel-nav{display:flex;align-items:center;gap:26px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.channel-nav::-webkit-scrollbar{display:none}
.channel-link{position:relative;padding:13px 2px;font-size:14px;color:var(--dark-sub);white-space:nowrap;transition:color .2s var(--ease)}
.channel-link::after{content:'';position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform .24s var(--ease)}
.channel-link:hover{color:#fff}
.channel-link.active{color:#fff;font-weight:600}
.channel-link.active::after{transform:scaleX(1)}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;border-radius:999px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;white-space:nowrap;transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),filter .2s var(--ease)}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 12px 26px -14px rgba(91,59,255,.9)}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 20px 36px -16px rgba(91,59,255,.85)}
.btn-primary:active{transform:translateY(0);filter:brightness(.97)}
.btn-secondary{border-color:rgba(122,92,255,.5);color:#D9D3FF;background:transparent}
.btn-secondary:hover{background:rgba(122,92,255,.16);border-color:var(--brand-light);color:#fff;transform:translateY(-1px)}
.btn-secondary:active{transform:translateY(0)}
.btn-outline{border-color:rgba(91,59,255,.35);color:var(--brand);background:#fff}
.btn-outline:hover{background:rgba(91,59,255,.08);border-color:var(--brand);transform:translateY(-1px)}
.btn-outline:active{transform:translateY(0)}
.btn-ghost{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:14px;font-weight:600;transition:gap .2s var(--ease)}
.btn-ghost:hover{gap:10px}
.btn-sm{height:40px;padding:0 18px;font-size:14px}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--ink);color:var(--dark-text);padding:56px 0 0}
.hero::before,.hero::after{content:'';position:absolute;border-radius:50%;filter:blur(90px);pointer-events:none}
.hero::before{width:520px;height:520px;left:-160px;top:-180px;background:rgba(91,59,255,.55)}
.hero::after{width:460px;height:460px;right:-150px;bottom:-200px;background:rgba(0,217,166,.32)}
.hero-grid-bg{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.055) 1px,transparent 1px);background-size:56px 56px;pointer-events:none}
.hero-inner{position:relative;z-index:2}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--brand)}
.eyebrow::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--brand)}
.eyebrow-dark{color:var(--neon)}
.eyebrow-dark::before{background:var(--neon)}
.hero h1{font-size:clamp(30px,4.6vw,52px);font-weight:800;line-height:1.15;letter-spacing:-.01em;color:#fff;margin-top:18px}
.hero h1 .hl{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{margin-top:20px;font-size:16px;line-height:1.9;color:var(--dark-sub);max-width:560px}
.hero-figure{position:relative;border-radius:var(--r-xl);padding:6px;border:1px solid rgba(255,255,255,.1);background:rgba(255,255,255,.03)}
.hero-figure img{width:100%;height:340px;object-fit:cover;border-radius:calc(var(--r-xl) - 6px)}
@media (min-width:1024px){.hero-figure img{height:400px}}
.hero-badges{position:absolute;right:14px;bottom:-24px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;width:min(320px,84%)}
@media (min-width:1024px){.hero-badges{right:-14px}}
.stat-card{background:rgba(20,24,48,.92);border:1px solid var(--dark-line);border-radius:var(--r-md);padding:10px 14px;backdrop-filter:blur(8px);box-shadow:var(--sh-dark)}
.stat-card .k{font-size:12px;color:var(--dark-sub)}
.stat-card .v{font-size:18px;font-weight:700;color:#fff;font-variant-numeric:tabular-nums}
.stat-card .v small{font-size:12px;font-weight:500;color:var(--neon);margin-left:2px}
.partner-bar{position:relative;z-index:2;margin-top:72px;border-top:1px solid var(--dark-line);padding:22px 0 26px}
.partner-bar span{color:#6E7690;font-size:13px;font-weight:600;letter-spacing:.02em;white-space:nowrap;transition:color .2s var(--ease)}
.partner-bar span:hover{color:var(--dark-sub)}

/* ---------- Sections ---------- */
.section{padding:64px 0}
@media (min-width:1024px){.section{padding:96px 0}}
.sec-title{font-size:clamp(24px,3vw,36px);font-weight:700;line-height:1.25;color:var(--text)}
.sec-sub{margin-top:12px;color:var(--text-sub);font-size:15px;line-height:1.8;max-width:640px}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px}

/* ---------- Bento ---------- */
.bento{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:768px){.bento{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}}
@media (min-width:1024px){.bento{grid-template-columns:repeat(4,minmax(0,1fr))}}
.bento-lg{grid-column:span 1;display:flex;flex-direction:column;justify-content:space-between;gap:18px;padding:28px;border-radius:var(--r-xl)}
@media (min-width:768px){.bento-lg{grid-column:span 2}}
@media (min-width:1024px){.bento-lg{grid-column:span 2;grid-row:span 2}}
.bento-sm{padding:24px;border-radius:var(--r-lg);display:flex;flex-direction:column;gap:12px}
.icon-box{width:44px;height:44px;border-radius:14px;display:flex;align-items:center;justify-content:center;background:rgba(91,59,255,.1);color:var(--brand)}
.icon-box-neon{background:rgba(0,217,166,.12);color:#00A87F}
.card-dark{background:linear-gradient(160deg,#1A1F3D 0%,#0F1226 100%);border:1px solid var(--dark-line);color:var(--dark-text);box-shadow:var(--sh-dark)}
.card-dark .bento-title{color:#fff}
.card-dark p{color:var(--dark-sub)}

/* ---------- Base card ---------- */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease)}
.card:hover{transform:translateY(-4px);border-color:rgba(91,59,255,.24);box-shadow:var(--sh-lg)}
.card-cover{overflow:hidden;border-radius:var(--r-lg) var(--r-lg) 0 0}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.card:hover .card-cover img{transform:scale(1.03)}
.tag-brand{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;background:rgba(91,59,255,.1);color:var(--brand);font-size:12px;font-weight:600}
.tag-neon{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;background:rgba(0,217,166,.14);color:#008F6B;font-size:12px;font-weight:600}
.tag-warm{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;background:rgba(255,106,61,.14);color:#D8481C;font-size:12px;font-weight:600}
.badge-data{display:inline-flex;align-items:center;gap:4px;height:26px;padding:0 11px;border-radius:999px;background:rgba(91,59,255,.1);color:var(--brand);font-size:12px;font-weight:600;font-variant-numeric:tabular-nums}
.badge-data b{font-size:14px}
.badge-dark{display:inline-flex;align-items:center;gap:4px;height:26px;padding:0 11px;border-radius:999px;background:rgba(255,255,255,.12);color:var(--dark-text);font-size:12px;font-weight:600;font-variant-numeric:tabular-nums}
.badge-dark b{font-size:14px}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:1fr;gap:20px;position:relative}
@media (min-width:768px){.steps{grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}}
@media (min-width:768px){
  .step:not(:last-child)::after{content:'';position:absolute;top:26px;right:-9px;width:18px;border-top:1px dashed rgba(91,59,255,.45)}
}
.step{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:22px;transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease)}
.step:hover{transform:translateY(-4px);border-color:rgba(91,59,255,.24);box-shadow:var(--sh-md)}
.step-num{display:inline-flex;align-items:center;justify-content:center;width:34px;height:26px;border-radius:999px;background:var(--grad);color:#fff;font-size:13px;font-weight:700}
.step-line{position:absolute;left:44px;top:34px;width:calc(100% - 66px);border-top:1px dashed rgba(91,59,255,.45);display:none}
@media (min-width:768px){.step-line{display:none}}

/* ---------- Cases ---------- */
.case-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:1024px){.case-grid{grid-template-columns:1.35fr 1fr;gap:24px;align-items:stretch}}
.case-main{display:flex;flex-direction:column;overflow:hidden;border-radius:var(--r-xl)}
.case-main img{width:100%;height:260px;object-fit:cover;transition:transform .3s var(--ease)}
@media (min-width:1024px){.case-main img{height:300px}}
.case-main:hover img{transform:scale(1.03)}
.case-side{display:grid;grid-template-columns:1fr;gap:20px}
.case-side .case-mini{display:flex;gap:16px;align-items:flex-start;padding:18px;border-radius:var(--r-lg);overflow:hidden}
.case-side img{width:104px;height:104px;flex:0 0 104px;object-fit:cover;border-radius:var(--r-md)}

/* ---------- Plans ---------- */
.plans{display:grid;grid-template-columns:1fr;gap:20px;align-items:stretch}
@media (min-width:768px){.plans{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.plans{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}}
.plan{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);padding:28px;display:flex;flex-direction:column;gap:18px;transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease)}
.plan:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:rgba(91,59,255,.24)}
.plan-featured{background:linear-gradient(#fff,#fff) padding-box,var(--grad) border-box;border:2px solid transparent;box-shadow:var(--sh-lg);z-index:2}
@media (min-width:1024px){.plan-featured{transform:scale(1.04)}.plan-featured:hover{transform:scale(1.04) translateY(-4px)}}
.plan-flag{position:absolute;top:18px;right:18px;height:26px;padding:0 12px;border-radius:999px;background:rgba(255,106,61,.14);color:#D8481C;font-size:12px;font-weight:700;display:inline-flex;align-items:center}
.plan-price{font-size:30px;font-weight:800;color:var(--text);line-height:1.2}
.plan-price small{font-size:13px;font-weight:500;color:var(--text-mute);margin-left:6px}
.plan-feat li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--text-sub);line-height:1.7;padding:7px 0}
.plan-feat svg{flex:0 0 18px;margin-top:4px}

/* ---------- FAQ ---------- */
.faq-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);padding:6px 26px;box-shadow:var(--sh-sm)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:none}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:22px 0;background:none;border:0;text-align:left;font-size:17px;font-weight:600;color:var(--text);cursor:pointer;transition:color .2s var(--ease)}
.faq-q:hover{color:var(--brand)}
.faq-icon{flex:0 0 26px;width:26px;height:26px;display:flex;align-items:center;justify-content:center;color:var(--brand);font-size:20px;line-height:1;transition:transform .3s var(--ease)}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s var(--ease)}
.faq-item.open .faq-a{max-height:340px}
.faq-a p{padding:0 46px 22px 0;font-size:15px;line-height:1.85;color:var(--text-sub)}

/* ---------- CTA ---------- */
.cta-band{position:relative;overflow:hidden;border-radius:var(--r-xl);background:linear-gradient(120deg,#5B3BFF 0%,#00D9A6 100%);color:#fff;padding:40px 28px}
@media (min-width:768px){.cta-band{padding:48px 44px}}
.cta-band::after{content:'';position:absolute;top:-60%;right:-10%;width:60%;height:220%;background:linear-gradient(90deg,rgba(255,255,255,0),rgba(255,255,255,.18),rgba(255,255,255,0));transform:rotate(18deg);pointer-events:none}
.cta-band .cta-title{font-size:clamp(22px,2.6vw,32px);font-weight:800;line-height:1.3;position:relative;z-index:2}
.cta-band .cta-sub{margin-top:10px;font-size:15px;color:rgba(255,255,255,.9);position:relative;z-index:2;max-width:560px}
.btn-white{background:#fff;color:#3A21B8;border-color:#fff}
.btn-white:hover{filter:brightness(1.02);transform:translateY(-1px);box-shadow:0 18px 34px -16px rgba(0,0,0,.5)}
.btn-white:active{transform:translateY(0)}
.btn-ghost-white{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.5);color:#fff}
.btn-ghost-white:hover{background:rgba(255,255,255,.24);transform:translateY(-1px)}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:var(--dark-sub);padding:56px 0 26px;position:relative;overflow:hidden}
.site-footer::before{content:'';position:absolute;width:420px;height:420px;left:-140px;top:-200px;border-radius:50%;background:rgba(91,59,255,.28);filter:blur(90px);pointer-events:none}
.foot-title{color:#fff;font-size:14px;font-weight:700;margin-bottom:16px}
.foot-link{display:inline-flex;align-items:center;font-size:14px;color:var(--dark-sub);padding:6px 0;transition:color .2s var(--ease),transform .2s var(--ease)}
.foot-link:hover{color:var(--neon);transform:translateX(2px)}
.foot-bottom{margin-top:36px;padding-top:22px;border-top:1px solid var(--dark-line);display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:#6E7690}

/* ---------- Drawer ---------- */
.drawer{position:fixed;inset:0;z-index:90;visibility:hidden;pointer-events:none}
.drawer.open{visibility:visible;pointer-events:auto}
.drawer-mask{position:absolute;inset:0;background:rgba(6,8,16,.6);opacity:0;transition:opacity .25s var(--ease)}
.drawer.open .drawer-mask{opacity:1}
.drawer-panel{position:absolute;top:0;right:0;height:100%;width:min(360px,88%);background:var(--ink);border-left:1px solid var(--dark-line);transform:translateX(100%);transition:transform .3s var(--ease);overflow-y:auto;padding:20px}
.drawer.open .drawer-panel{transform:translateX(0)}
.drawer-link{display:flex;align-items:center;min-height:48px;padding:0 14px;border-radius:var(--r-md);color:var(--dark-text);font-size:15px;transition:background .2s var(--ease),color .2s var(--ease)}
.drawer-link:hover{background:rgba(255,255,255,.07)}
.drawer-link.active{background:rgba(91,59,255,.22);color:#fff;font-weight:600}
.drawer-input{width:100%;height:48px;border-radius:var(--r-md);background:rgba(255,255,255,.06);border:1px solid var(--dark-line);padding:0 16px;color:var(--dark-text);font-size:15px;outline:none;transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.drawer-input::placeholder{color:var(--dark-sub)}
.drawer-input:focus{border-color:var(--brand-light);box-shadow:0 0 0 3px rgba(91,59,255,.25)}

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{transition:none !important;animation:none !important}
  .card:hover,.step:hover,.plan:hover,.plan-featured:hover{transform:none !important}
  .card:hover .card-cover img,.case-main:hover img{transform:none !important}
}

/* roulang page: article */
:root{
  --brand:#5B3BFF;
  --brand-light:#7A5CFF;
  --mint:#00D9A6;
  --warm:#FF6A3D;
  --ink:#10132A;
  --ink-2:#5C6480;
  --ink-3:#8A90A6;
  --line:#E6E8F0;
  --page:#F4F5FB;
  --card:#FFFFFF;
  --dark:#0B0D18;
  --dark-2:#141830;
  --dark-line:rgba(255,255,255,.08);
  --dark-text:#F2F4FF;
  --dark-sub:#A8AFC9;
  --r-xs:10px;
  --r-sm:14px;
  --r-md:20px;
  --r-lg:28px;
  --sh-sm:0 1px 2px rgba(16,19,42,.06);
  --sh-md:0 8px 24px -12px rgba(91,59,255,.25);
  --sh-lg:0 24px 60px -24px rgba(91,59,255,.35);
  --ease:cubic-bezier(.2,.7,.3,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease),background-color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input{font:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

.container-page{
  width:100%;
  max-width:1280px;
  margin:0 auto;
  padding:0 20px;
}
@media (min-width:768px){.container-page{padding:0 24px;}}
@media (min-width:1024px){.container-page{padding:0 32px;}}

.num{font-variant-numeric:tabular-nums;}

/* ================= 导航 ================= */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:var(--dark);
  border-bottom:1px solid var(--dark-line);
  transition:background-color .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header.scrolled{
  background:rgba(11,13,24,.88);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  box-shadow:0 14px 34px -20px rgba(0,0,0,.95);
}
.brand-row{
  display:flex;
  align-items:center;
  gap:16px;
  height:64px;
}
@media (max-width:767px){.brand-row{height:56px;gap:10px;}}
.brand-logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  border-radius:11px;
  background:linear-gradient(120deg,#5B3BFF,#00D9A6);
  color:#fff;font-weight:800;font-size:16px;
  box-shadow:0 8px 20px -10px rgba(91,59,255,.9);
}
.brand-name{
  color:#fff;
  font-weight:700;
  font-size:15px;
  letter-spacing:.01em;
  white-space:nowrap;
}
@media (max-width:519px){.brand-name{font-size:14px;}}

.hot-words{display:flex;align-items:center;gap:8px;flex:1;min-width:0;overflow:hidden;}
@media (max-width:1023px){.hot-words{display:none;}}
.hot-pill{
  display:inline-flex;align-items:center;
  padding:5px 12px;
  border-radius:999px;
  font-size:12.5px;
  color:#FF8A63;
  background:rgba(255,106,61,.12);
  border:1px solid rgba(255,106,61,.22);
  white-space:nowrap;
}
.hot-pill:hover{background:var(--warm);color:#fff;border-color:var(--warm);}

.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto;}
.icon-btn{
  width:40px;height:40px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;
  color:var(--dark-sub);
  font-size:15px;
  transition:background-color .22s var(--ease),color .22s var(--ease);
}
.icon-btn:hover{background:rgba(255,255,255,.08);color:#fff;}
.menu-btn{display:none;}
@media (max-width:1023px){.menu-btn{display:inline-flex;}}

.search-wrap{position:relative;display:flex;align-items:center;}
@media (max-width:1023px){.search-wrap{display:none;}}
.search-box{
  width:0;
  opacity:0;
  overflow:hidden;
  transition:width .3s var(--ease),opacity .3s var(--ease),margin .3s var(--ease);
}
.search-wrap.open .search-box{width:320px;opacity:1;margin-left:8px;}
.search-box input{
  width:100%;
  height:40px;
  padding:0 16px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.07);
  color:#fff;
  font-size:14px;
  outline:none;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease),background-color .22s var(--ease);
}
.search-box input::placeholder{color:#6E7690;}
.search-box input:focus{
  border-color:var(--brand-light);
  background:rgba(255,255,255,.1);
  box-shadow:0 0 0 3px rgba(122,92,255,.25);
}

.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;
  border-radius:999px;
  background:linear-gradient(120deg,#5B3BFF,#00D9A6);
  color:#fff;
  font-weight:700;
  font-size:15px;
  white-space:nowrap;
  box-shadow:var(--sh-md);
  transition:filter .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:var(--sh-lg);}
.btn-primary:active{transform:translateY(0);filter:brightness(.98);box-shadow:var(--sh-md);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
@media (max-width:519px){.btn-sm{padding:0 14px;font-size:13px;}}

.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;
  border-radius:999px;
  border:1px solid var(--brand);
  color:var(--brand);
  font-weight:600;
  font-size:15px;
  background:transparent;
  transition:background-color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);
}
.btn-ghost:hover{background:rgba(91,59,255,.08);border-color:#4A2BE0;transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}

.channel-bar{
  border-top:1px solid rgba(255,255,255,.06);
  background:rgba(255,255,255,.02);
}
.channel-nav{
  display:flex;
  align-items:center;
  gap:4px;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
  height:48px;
}
.channel-nav::-webkit-scrollbar{display:none;}
.channel-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:100%;
  padding:0 14px;
  font-size:14.5px;
  font-weight:500;
  color:var(--dark-sub);
  white-space:nowrap;
}
.channel-link:hover{color:#fff;}
.channel-link.active{color:#fff;font-weight:700;}
.channel-link.active::after{
  content:"";
  position:absolute;left:14px;right:14px;bottom:8px;
  height:2px;border-radius:2px;
  background:linear-gradient(120deg,#5B3BFF,#00D9A6);
}

/* 移动抽屉 */
.mobile-drawer{
  display:none;
  border-top:1px solid var(--dark-line);
  background:var(--dark-2);
  padding:18px 0 22px;
}
.mobile-drawer.open{display:block;}
@media (min-width:1024px){.mobile-drawer.open{display:none;}}
.drawer-label{
  font-size:12px;font-weight:700;letter-spacing:.08em;
  color:#6E7690;margin:0 0 10px;text-transform:uppercase;
}
.drawer-search input{
  width:100%;height:44px;padding:0 16px;
  border-radius:14px;
  border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.07);
  color:#fff;font-size:14px;outline:none;
}
.drawer-search input::placeholder{color:#6E7690;}
.drawer-search input:focus{border-color:var(--brand-light);box-shadow:0 0 0 3px rgba(122,92,255,.25);}
.drawer-links{display:flex;flex-direction:column;gap:2px;margin:6px 0 16px;}
.drawer-links a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:44px;padding:0 14px;
  border-radius:12px;
  color:var(--dark-sub);
  font-size:15px;
}
.drawer-links a:hover,.drawer-links a.active{background:rgba(255,255,255,.07);color:#fff;}
.drawer-hot{display:flex;flex-wrap:wrap;gap:8px;}

/* ================= 面包屑 ================= */
.crumb-bar{
  background:var(--page);
  padding:20px 0 0;
}
.crumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--ink-3);
}
.crumb a{color:var(--ink-2);}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:#C3C8D8;}
.crumb .current{
  color:var(--ink-3);
  max-width:min(60vw,420px);
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}

/* ================= 阅读区 ================= */
.reader-wrap{padding:22px 0 88px;}
.reader-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:24px;
}
@media (min-width:1280px){
  .reader-grid{
    grid-template-columns:minmax(0,1fr) 264px;
    grid-template-areas:"main side";
    gap:32px;
  }
  .reader-main{grid-area:main;}
  .reader-side{grid-area:side;}
}

.reader-main{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:26px 20px 34px;
  box-shadow:var(--sh-sm);
}
@media (min-width:768px){.reader-main{padding:44px 48px 52px;}}
@media (min-width:1280px){.reader-main{padding:48px 56px 60px;}}
.reader-inner{max-width:780px;margin:0 auto;}

.article-head{margin-bottom:28px;}
.article-cat{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 14px;
  border-radius:999px;
  background:rgba(91,59,255,.1);
  color:var(--brand);
  font-size:12.5px;
  font-weight:700;
}
.article-h1{
  margin:16px 0 0;
  font-size:clamp(26px,3.6vw,38px);
  font-weight:800;
  line-height:1.28;
  letter-spacing:-.01em;
  color:var(--ink);
  word-break:break-word;
}
.meta-row{
  display:flex;align-items:center;flex-wrap:wrap;
  gap:8px 14px;
  margin-top:18px;
  font-size:13px;
  color:var(--ink-3);
}
.meta-row .dot{width:3px;height:3px;border-radius:50%;background:#CBD0DF;}
.meta-row i{margin-right:4px;color:#B0B6C8;}

.head-tools{
  display:flex;align-items:center;justify-content:space-between;
  flex-wrap:wrap;gap:14px;
  margin-top:22px;
  padding-top:20px;
  border-top:1px solid var(--line);
}
.share-group{display:flex;align-items:center;gap:8px;}
.share-group span{font-size:13px;color:var(--ink-3);}
.share-btn{
  width:38px;height:38px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;
  border:1px solid var(--line);
  color:var(--ink-2);
  font-size:14px;
  background:#fff;
}
.share-btn:hover{color:var(--brand);border-color:rgba(91,59,255,.4);background:rgba(91,59,255,.06);transform:translateY(-2px);}
.share-btn:active{transform:translateY(0);}

/* 目录小卡 */
.toc-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:18px 20px;
  box-shadow:var(--sh-sm);
}
@media (min-width:1280px){
  .reader-side{position:sticky;top:88px;align-self:start;}
  .toc-card{padding:20px;}
}
.toc-head{
  display:flex;align-items:center;justify-content:space-between;
  font-size:14px;font-weight:700;color:var(--ink);
  padding-bottom:12px;border-bottom:1px solid var(--line);
}
.toc-head i{color:var(--brand);margin-right:6px;}
.toc-list{margin-top:12px;display:flex;flex-direction:column;gap:2px;max-height:52vh;overflow-y:auto;}
.toc-link{
  display:block;
  padding:7px 10px;
  border-radius:10px;
  font-size:13.5px;
  line-height:1.6;
  color:var(--ink-2);
  border-left:2px solid transparent;
}
.toc-link:hover{background:rgba(91,59,255,.06);color:var(--brand);}
.toc-link.toc-sub{padding-left:22px;font-size:13px;color:var(--ink-3);}
.toc-link.is-active{background:rgba(91,59,255,.09);color:var(--brand);font-weight:600;border-left-color:var(--brand);}
@media (max-width:1279px){
  .toc-list{max-height:none;}
  .toc-list.collapsed{display:none;}
}

/* 正文排版 */
.article-body{font-size:16.5px;line-height:1.9;color:#232744;}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  font-size:clamp(20px,2.4vw,25px);
  font-weight:700;
  line-height:1.4;
  color:var(--ink);
  margin:2em 0 .8em;
  padding-left:14px;
  border-left:4px solid var(--brand);
  scroll-margin-top:100px;
}
.article-body h3{
  font-size:19px;
  font-weight:700;
  line-height:1.45;
  color:var(--ink);
  margin:1.7em 0 .6em;
  scroll-margin-top:100px;
}
.article-body h4{font-size:17px;font-weight:700;margin:1.4em 0 .5em;color:var(--ink);}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.5em;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin:.42em 0;}
.article-body ul li::marker{color:var(--brand);}
.article-body ol li::marker{color:var(--brand);font-weight:700;}
.article-body blockquote{
  margin:1.5em 0;
  padding:16px 20px;
  background:#F3F1FF;
  border-left:4px solid var(--brand-light);
  border-radius:0 14px 14px 0;
  color:#3A3F60;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:16px;margin:1.6em auto;height:auto;}
.article-body figure{margin:1.6em 0;}
.article-body figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:8px;}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(91,59,255,.32);}
.article-body a:hover{color:var(--brand-light);border-color:var(--brand-light);}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:1.6em 0;
  font-size:15px;
  border:1px solid var(--line);
  border-radius:14px;
  overflow:hidden;
}
.article-body th,.article-body td{
  border:1px solid var(--line);
  padding:11px 14px;
  text-align:left;
  vertical-align:top;
}
.article-body thead th{background:#F7F8FE;font-weight:700;color:var(--ink);}
.article-body tbody tr:nth-child(even){background:#FAFBFF;}
.article-body code{
  padding:2px 7px;
  border-radius:7px;
  background:#F1F2FA;
  color:#4A2BE0;
  font-size:14px;
}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0;}

/* 空态 */
.empty-article{
  text-align:center;
  padding:56px 20px 64px;
}
.empty-icon{
  width:72px;height:72px;margin:0 auto 20px;
  display:flex;align-items:center;justify-content:center;
  border-radius:24px;
  background:rgba(91,59,255,.09);
  color:var(--brand);
  font-size:28px;
}
.empty-article h2{font-size:22px;font-weight:700;color:var(--ink);margin-bottom:10px;}
.empty-article p{font-size:15px;color:var(--ink-2);margin-bottom:24px;}

/* 标签与声明 */
.article-foot{margin-top:36px;padding-top:26px;border-top:1px solid var(--line);}
.tag-list{display:flex;flex-wrap:wrap;gap:10px;}
.tag-pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;
  border-radius:999px;
  background:var(--page);
  border:1px solid var(--line);
  color:var(--ink-2);
  font-size:13px;
}
.tag-pill:hover{background:rgba(91,59,255,.09);border-color:rgba(91,59,255,.3);color:var(--brand);}
.statement{
  margin-top:18px;
  padding:14px 18px;
  border-radius:var(--r-sm);
  background:#F7F8FE;
  border:1px solid var(--line);
  font-size:13px;
  line-height:1.8;
  color:var(--ink-3);
}

/* 相关推荐 */
.related-sec{margin-top:56px;}
.sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:16px;
  margin-bottom:22px;
}
.sec-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.08em;
  color:var(--mint);
  margin-bottom:8px;
}
.sec-eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--mint);}
.sec-title{font-size:clamp(20px,2.4vw,26px);font-weight:700;color:var(--ink);line-height:1.3;}
.more-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand);
  white-space:nowrap;
}
.more-link i{transition:transform .22s var(--ease);}
.more-link:hover i{transform:translateX(3px);}

.related-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:20px;
}
@media (min-width:640px){.related-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.related-grid{grid-template-columns:repeat(3,1fr);gap:24px;}}

.post-card{
  display:flex;
  flex-direction:column;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  box-shadow:var(--sh-sm);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
  height:100%;
}
.post-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--sh-md);
  border-color:rgba(91,59,255,.2);
}
.post-thumb{
  position:relative;
  aspect-ratio:16/10;
  overflow:hidden;
  background:#EDEFF7;
}
.post-thumb img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .35s var(--ease);
}
.post-card:hover .post-thumb img{transform:scale(1.03);}
.post-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1;}
.post-cat{
  align-self:flex-start;
  padding:3px 11px;
  border-radius:999px;
  background:rgba(91,59,255,.1);
  color:var(--brand);
  font-size:12px;
  font-weight:600;
  margin-bottom:11px;
}
.post-title{
  font-size:16.5px;
  font-weight:700;
  line-height:1.55;
  color:var(--ink);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-card:hover .post-title{color:var(--brand);}
.post-desc{
  margin-top:9px;
  font-size:14px;
  line-height:1.7;
  color:var(--ink-2);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-meta{
  margin-top:auto;
  padding-top:14px;
  display:flex;align-items:center;gap:10px;
  font-size:13px;color:var(--ink-3);
}

/* 上/下一篇 */
.pager{
  margin-top:40px;
  display:grid;
  grid-template-columns:1fr;
  gap:14px;
}
@media (min-width:768px){.pager{grid-template-columns:1fr 1fr;}}
.pager-item{
  display:block;
  padding:18px 20px;
  border-radius:var(--r-md);
  background:#fff;
  border:1px solid var(--line);
  box-shadow:var(--sh-sm);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.pager-item:hover{transform:translateY(-3px);box-shadow:var(--sh-md);border-color:rgba(91,59,255,.22);}
.pager-label{
  font-size:12.5px;color:var(--ink-3);display:flex;align-items:center;gap:6px;margin-bottom:8px;
}
.pager-title{
  font-size:15.5px;font-weight:700;color:var(--ink);line-height:1.6;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.pager-item:hover .pager-title{color:var(--brand);}
.pager-back{grid-column:1/-1;text-align:center;margin-top:6px;}
.pager-back a{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 24px;
  border-radius:999px;
  border:1px solid var(--line);
  background:#fff;
  font-size:14.5px;font-weight:600;color:var(--ink-2);
}
.pager-back a:hover{color:var(--brand);border-color:rgba(91,59,255,.4);background:rgba(91,59,255,.05);}

/* ================= CTA 带 ================= */
.cta-band{
  position:relative;
  overflow:hidden;
  background:linear-gradient(120deg,#5B3BFF,#00D9A6);
}
.cta-band::before{
  content:"";
  position:absolute;
  top:-60%;left:-10%;
  width:70%;height:220%;
  background:rgba(255,255,255,.12);
  transform:rotate(18deg);
  pointer-events:none;
}
.cta-inner{
  position:relative;z-index:2;
  display:flex;align-items:center;justify-content:space-between;
  gap:28px;flex-wrap:wrap;
  padding:52px 0;
}
@media (min-width:768px){.cta-inner{padding:64px 0;}}
.cta-title{
  font-size:clamp(22px,2.8vw,32px);
  font-weight:800;
  color:#fff;
  line-height:1.3;
  letter-spacing:-.01em;
}
.cta-sub{margin-top:10px;font-size:15px;color:rgba(255,255,255,.9);max-width:560px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
.btn-white{
  display:inline-flex;align-items:center;justify-content:center;
  height:48px;padding:0 24px;
  border-radius:999px;
  background:#fff;
  color:var(--brand);
  font-weight:700;font-size:15px;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.btn-white:hover{transform:translateY(-2px);box-shadow:0 18px 34px -18px rgba(0,0,0,.5);}
.btn-white:active{transform:translateY(0);}
.btn-outline-white{
  display:inline-flex;align-items:center;justify-content:center;
  height:48px;padding:0 24px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.7);
  color:#fff;font-weight:600;font-size:15px;
  transition:background-color .22s var(--ease),transform .22s var(--ease);
}
.btn-outline-white:hover{background:rgba(255,255,255,.16);transform:translateY(-2px);}
.btn-outline-white:active{transform:translateY(0);}
@media (max-width:639px){
  .cta-actions{width:100%;flex-direction:column;}
  .cta-actions a{width:100%;}
}

/* ================= 页脚 ================= */
.site-footer{
  position:relative;
  overflow:hidden;
  background:var(--dark);
  color:var(--dark-sub);
  padding:64px 0 0;
}
.site-footer::before{
  content:"";
  position:absolute;top:-140px;right:-120px;
  width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(91,59,255,.35),transparent 70%);
  pointer-events:none;
}
.foot-title{
  color:#fff;
  font-size:15px;
  font-weight:700;
  margin:0 0 16px;
}
.foot-link{
  display:inline-block;
  padding:6px 0;
  font-size:14px;
  color:var(--dark-sub);
  transition:color .22s var(--ease),transform .22s var(--ease);
}
.foot-link:hover{color:var(--mint);transform:translateX(2px);}
.badge-dark{
  display:inline-flex;align-items:center;
  padding:5px 12px;
  border-radius:999px;
  background:rgba(255,255,255,.08);
  border:1px solid var(--dark-line);
  color:#C9CFE8;
  font-size:12px;
}
.foot-bottom{
  margin-top:48px;
  border-top:1px solid var(--dark-line);
  padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;
  flex-wrap:wrap;gap:10px;
  font-size:13px;
  color:#6E7690;
}

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

/* roulang page: category1 */
:root{
    --brand:#5B3BFF;
    --brand-light:#7A5CFF;
    --brand-mint:#00D9A6;
    --accent:#FF6A3D;
    --ink-900:#0B0D18;
    --ink-800:#141830;
    --ink-100:#F2F4FF;
    --ink-300:#A8AFC9;
    --page-bg:#F4F5FB;
    --card:#FFFFFF;
    --line:#E6E8F0;
    --text:#10132A;
    --text-sub:#5C6480;
    --text-weak:#8A90A6;
    --radius-s:10px;
    --radius-m:14px;
    --radius-l:20px;
    --radius-xl:28px;
    --shadow-sm:0 1px 2px rgba(16,19,42,.06);
    --shadow-md:0 8px 24px -12px rgba(91,59,255,.25);
    --shadow-lg:0 24px 60px -24px rgba(91,59,255,.35);
    --ease:cubic-bezier(.2,.7,.3,1);
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    font-family:system-ui,"PingFang SC","Microsoft YaHei",sans-serif;
    background:var(--page-bg);
    color:var(--text);
    font-size:16px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
  ul,ol{list-style:none;}
  img{display:block;max-width:100%;border-radius:var(--radius-m);}
  a{color:inherit;text-decoration:none;}
  button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
  input{font-family:inherit;font-size:14px;}
  .num{font-variant-numeric:tabular-nums;}

  .container-page{
    width:100%;
    max-width:1280px;
    margin:0 auto;
    padding-left:20px;
    padding-right:20px;
  }
  @media (min-width:768px){ .container-page{padding-left:24px;padding-right:24px;} }
  @media (min-width:1024px){ .container-page{padding-left:32px;padding-right:32px;} }

  :focus-visible{
    outline:2px solid var(--brand);
    outline-offset:2px;
    border-radius:6px;
  }

  /* ============ Header ============ */
  .site-header{
    position:sticky;
    top:0;
    z-index:80;
    background:var(--ink-900);
    border-bottom:1px solid rgba(255,255,255,.08);
    transition:background .25s var(--ease), box-shadow .25s var(--ease);
  }
  .site-header.scrolled{
    background:rgba(11,13,24,.86);
    backdrop-filter:blur(14px);
    box-shadow:0 20px 50px -20px rgba(0,0,0,.6);
  }
  .header-top-inner{
    display:flex;
    align-items:center;
    gap:16px;
    height:56px;
  }
  @media (min-width:1024px){ .header-top-inner{height:64px;gap:24px;} }

  .brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
  .brand-mark{
    width:34px;height:34px;flex:0 0 auto;
    display:flex;align-items:center;justify-content:center;
    border-radius:12px;
    background:linear-gradient(120deg,#5B3BFF,#00D9A6);
    color:#fff;font-weight:800;font-size:16px;
    box-shadow:0 8px 20px -10px rgba(91,59,255,.9);
  }
  .brand-name{
    color:#fff;font-weight:800;font-size:15px;letter-spacing:.01em;white-space:nowrap;
  }
  @media (max-width:420px){ .brand-name{font-size:13.5px;} }

  .hot-words{display:none;align-items:center;gap:8px;flex:1 1 auto;overflow:hidden;}
  @media (min-width:1024px){ .hot-words{display:flex;} }
  .hot-pill{
    display:inline-flex;align-items:center;
    padding:6px 12px;border-radius:999px;
    font-size:13px;font-weight:500;
    color:#FFB69C;
    background:rgba(255,106,61,.12);
    white-space:nowrap;
    transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
  }
  .hot-pill:hover{background:var(--accent);color:#fff;transform:translateY(-1px);}

  .header-actions{display:flex;align-items:center;gap:10px;margin-left:auto;flex:0 0 auto;}

  .search-wrap{display:none;align-items:center;gap:8px;}
  @media (min-width:640px){ .search-wrap{display:flex;} }
  .icon-btn{
    width:40px;height:40px;border-radius:999px;
    display:flex;align-items:center;justify-content:center;
    color:var(--ink-300);
    border:1px solid rgba(255,255,255,.1);
    transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
  }
  .icon-btn:hover{color:#fff;border-color:rgba(255,255,255,.28);background:rgba(255,255,255,.06);}
  .search-form{
    width:0;overflow:hidden;
    transition:width .28s var(--ease);
  }
  .search-wrap.open .search-form{width:320px;}
  .search-input{
    width:100%;
    height:40px;
    padding:0 16px;
    border-radius:999px;
    background:#fff;
    border:1px solid var(--line);
    color:var(--text);
    outline:none;
    transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
  }
  .search-input::placeholder{color:var(--text-weak);}
  .search-input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(91,59,255,.2);}

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:46px;padding:0 22px;
    border-radius:999px;
    font-size:15px;font-weight:600;
    white-space:nowrap;
    transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),filter .2s var(--ease);
  }
  .btn-sm{height:40px;padding:0 18px;font-size:14px;}
  .btn-primary{
    background:linear-gradient(120deg,#5B3BFF,#00D9A6);
    color:#fff;
    box-shadow:var(--shadow-md);
  }
  .btn-primary:hover{filter:brightness(1.08);box-shadow:var(--shadow-lg);transform:translateY(-1px);}
  .btn-primary:active{transform:translateY(0);filter:brightness(.98);box-shadow:var(--shadow-sm);}
  .btn-outline{
    background:transparent;
    color:var(--brand);
    border:1px solid var(--brand);
  }
  .btn-outline:hover{background:rgba(91,59,255,.08);border-color:var(--brand-light);transform:translateY(-1px);}
  .btn-outline:active{transform:translateY(0);background:rgba(91,59,255,.14);}
  .btn-ghost-dark{
    background:rgba(255,255,255,.08);
    color:#fff;
    border:1px solid rgba(255,255,255,.16);
  }
  .btn-ghost-dark:hover{background:rgba(255,255,255,.16);transform:translateY(-1px);}
  .btn-ghost-dark:active{transform:translateY(0);}

  .menu-btn{
    width:40px;height:40px;border-radius:12px;
    display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
    border:1px solid rgba(255,255,255,.12);
    color:#fff;
  }
  .menu-btn span{display:block;width:16px;height:2px;border-radius:2px;background:currentColor;transition:transform .22s var(--ease),opacity .22s var(--ease);}
  .menu-btn.open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
  .menu-btn.open span:nth-child(2){opacity:0;}
  .menu-btn.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
  @media (min-width:1024px){ .menu-btn{display:none;} }

  .header-bottom{border-top:1px solid rgba(255,255,255,.06);}
  .channel-nav{
    display:flex;align-items:center;gap:28px;
    overflow-x:auto;
    scrollbar-width:none;
  }
  .channel-nav::-webkit-scrollbar{display:none;}
  .channel-link{
    position:relative;
    padding:13px 0;
    font-size:15px;
    font-weight:500;
    color:var(--ink-300);
    white-space:nowrap;
    transition:color .2s var(--ease);
  }
  .channel-link:hover{color:#fff;}
  .channel-link.active{color:#fff;font-weight:700;}
  .channel-link.active::after{
    content:"";
    position:absolute;left:0;right:0;bottom:0;height:2px;
    border-radius:2px;
    background:linear-gradient(90deg,var(--brand-light),var(--brand-mint));
  }

  .mobile-drawer{
    display:none;
    background:var(--ink-800);
    border-top:1px solid rgba(255,255,255,.08);
    padding:18px 0 24px;
  }
  .mobile-drawer.open{display:block;}
  @media (min-width:1024px){ .mobile-drawer{display:none !important;} }
  .drawer-title{color:var(--ink-300);font-size:12px;font-weight:600;letter-spacing:.08em;margin-bottom:10px;}
  .drawer-link{
    display:flex;align-items:center;
    min-height:44px;
    padding:0 14px;
    border-radius:var(--radius-m);
    color:var(--ink-100);
    font-size:15px;
    transition:background .2s var(--ease),color .2s var(--ease);
  }
  .drawer-link:hover{background:rgba(255,255,255,.07);color:#fff;}
  .drawer-link.active{background:rgba(91,59,255,.22);color:#fff;font-weight:700;}

  /* ============ Category Hero ============ */
  .cat-hero{
    position:relative;
    overflow:hidden;
    background-color:var(--ink-900);
    background-image:url('/assets/images/backpic/back-2.webp');
    background-size:cover;
    background-position:center;
    padding:44px 0 56px;
  }
  .cat-hero::before{
    content:"";
    position:absolute;inset:0;
    background:linear-gradient(110deg,rgba(11,13,24,.96) 0%,rgba(11,13,24,.86) 46%,rgba(11,13,24,.62) 100%);
  }
  .cat-hero::after{
    content:"";
    position:absolute;
    width:420px;height:420px;right:-120px;bottom:-220px;
    background:radial-gradient(circle,rgba(0,217,166,.35),transparent 68%);
    filter:blur(30px);
    pointer-events:none;
  }
  .cat-hero-inner{position:relative;z-index:2;}
  @media (min-width:1024px){ .cat-hero{padding:60px 0 76px;} }

  .crumb{
    display:flex;align-items:center;flex-wrap:wrap;gap:8px;
    font-size:13px;color:var(--ink-300);
    margin-bottom:22px;
  }
  .crumb a{color:var(--ink-300);transition:color .2s var(--ease);}
  .crumb a:hover{color:var(--brand-mint);}
  .crumb .sep{color:rgba(255,255,255,.28);}
  .crumb .current{color:#fff;}

  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:12px;font-weight:600;letter-spacing:.08em;
    color:var(--brand-mint);
  }
  .eyebrow::before{
    content:"";width:6px;height:6px;border-radius:50%;
    background:var(--brand-mint);
    box-shadow:0 0 0 4px rgba(0,217,166,.16);
  }
  .cat-hero h1{
    margin-top:16px;
    color:#fff;
    font-size:clamp(30px,4.6vw,52px);
    font-weight:800;
    line-height:1.15;
    letter-spacing:-.01em;
  }
  .cat-hero .lead{
    margin-top:18px;
    max-width:760px;
    color:var(--ink-300);
    font-size:16px;
    line-height:1.9;
  }
  @media (min-width:768px){ .cat-hero .lead{font-size:17px;} }

  .stat-badges{
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:12px;
    margin-top:28px;
    max-width:680px;
  }
  @media (min-width:768px){ .stat-badges{grid-template-columns:repeat(3,minmax(0,1fr));} }
  .stat-card{
    padding:14px 16px;
    border-radius:var(--radius-m);
    background:rgba(255,255,255,.06);
    border:1px solid rgba(255,255,255,.1);
    transition:background .22s var(--ease),transform .22s var(--ease);
  }
  .stat-card:hover{background:rgba(255,255,255,.1);transform:translateY(-2px);}
  .stat-num{
    font-size:22px;font-weight:800;color:#fff;
    font-variant-numeric:tabular-nums;
    line-height:1.2;
  }
  .stat-num small{font-size:12px;font-weight:600;color:var(--ink-300);margin-left:4px;}
  .stat-label{font-size:13px;color:var(--ink-300);margin-top:4px;}

  /* ============ Sections ============ */
  .section{padding:64px 0;}
  @media (min-width:1024px){ .section{padding:88px 0;} }
  .section-alt{background:var(--page-bg);}
  .section-white{background:#fff;}

  .sec-head{
    display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
    margin-bottom:28px;
  }
  .sec-head h2{
    margin-top:10px;
    font-size:clamp(24px,3vw,36px);
    font-weight:700;
    line-height:1.25;
    letter-spacing:-.01em;
  }
  .sec-head p.sub{
    margin-top:10px;
    max-width:640px;
    color:var(--text-sub);
    font-size:15px;
  }
  .ghost-link{
    display:inline-flex;align-items:center;gap:6px;
    color:var(--brand);
    font-size:14px;font-weight:600;
    white-space:nowrap;
  }
  .ghost-link span{transition:transform .2s var(--ease);}
  .ghost-link:hover span{transform:translateX(3px);}

  /* ============ Filter bar ============ */
  .filter-bar{
    display:flex;flex-wrap:wrap;align-items:center;gap:14px;
    padding:14px 16px;
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius-l);
    box-shadow:var(--shadow-sm);
    margin-bottom:24px;
  }
  .chip{
    display:inline-flex;align-items:center;
    height:36px;padding:0 16px;
    border-radius:999px;
    font-size:14px;font-weight:500;
    color:var(--text-sub);
    background:var(--page-bg);
    border:1px solid transparent;
    transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
  }
  .chip:hover{color:var(--brand);background:rgba(91,59,255,.08);transform:translateY(-1px);}
  .chip.active{
    color:#fff;
    background:linear-gradient(120deg,#5B3BFF,#00D9A6);
    border-color:transparent;
    box-shadow:var(--shadow-md);
  }
  .sort-wrap{margin-left:auto;display:flex;align-items:center;gap:10px;}
  .sort-label{font-size:13px;color:var(--text-weak);}
  .sort-select{
    height:36px;
    padding:0 34px 0 14px;
    border-radius:999px;
    border:1px solid var(--line);
    background:#fff url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%235C6480' d='M6 8 0 1.4 1.4 0 6 4.8 10.6 0 12 1.4z'/%3E%3C/svg%3E") no-repeat right 14px center;
    -webkit-appearance:none;appearance:none;
    color:var(--text-sub);
    font-size:14px;
    outline:none;
    transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
  }
  .sort-select:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(91,59,255,.18);}

  /* ============ Card grid ============ */
  .card-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:20px;
  }
  @media (min-width:640px){ .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));} }
  @media (min-width:1024px){ .card-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;} }

  .info-card{
    display:flex;flex-direction:column;
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius-l);
    overflow:hidden;
    box-shadow:var(--shadow-sm);
    transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
  }
  .info-card:hover{
    transform:translateY(-4px);
    border-color:rgba(91,59,255,.2);
    box-shadow:var(--shadow-md);
  }
  .card-cover{
    position:relative;
    aspect-ratio:16/10;
    overflow:hidden;
    background:var(--ink-800);
  }
  .card-cover img{
    width:100%;height:100%;object-fit:cover;border-radius:0;
    transition:transform .22s var(--ease);
  }
  .info-card:hover .card-cover img{transform:scale(1.03);}
  .card-cover .tag{
    position:absolute;left:12px;top:12px;
    padding:5px 12px;
    border-radius:999px;
    font-size:12px;font-weight:600;
    color:#fff;
    background:rgba(11,13,24,.62);
    backdrop-filter:blur(6px);
    border:1px solid rgba(255,255,255,.16);
  }
  .card-cover .tag-accent{
    left:auto;right:12px;
    background:rgba(255,106,61,.92);
    border-color:transparent;
  }
  .card-body{padding:20px;display:flex;flex-direction:column;flex:1 1 auto;}
  .card-title{
    font-size:18px;font-weight:700;line-height:1.45;
    color:var(--text);
  }
  .info-card:hover .card-title{color:var(--brand);}
  .card-desc{
    margin-top:10px;
    font-size:14px;line-height:1.7;
    color:var(--text-sub);
    display:-webkit-box;
    -webkit-line-clamp:2;
    -webkit-box-orient:vertical;
    overflow:hidden;
  }
  .card-meta{
    margin-top:16px;
    padding-top:14px;
    border-top:1px solid var(--line);
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    font-size:13px;color:var(--text-weak);
  }
  .card-meta .go{color:var(--brand);font-weight:600;display:inline-flex;align-items:center;gap:5px;}
  .card-meta .go i{font-style:normal;transition:transform .2s var(--ease);}
  .info-card:hover .card-meta .go i{transform:translateX(3px);}

  .load-more-wrap{
    display:flex;flex-direction:column;align-items:center;gap:12px;
    margin-top:34px;
  }
  .load-hint{font-size:13px;color:var(--text-weak);}

  /* ============ Aux panels ============ */
  .aux-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:20px;
  }
  @media (min-width:1024px){ .aux-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;} }
  .panel{
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius-l);
    padding:24px;
    box-shadow:var(--shadow-sm);
    transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
  }
  .panel:hover{border-color:rgba(91,59,255,.18);box-shadow:var(--shadow-md);}
  .panel h3{font-size:18px;font-weight:700;}
  .panel .panel-sub{font-size:13px;color:var(--text-weak);margin-top:6px;}
  .tag-cloud{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;}
  .tag-cloud a{
    display:inline-flex;align-items:center;
    padding:7px 14px;border-radius:999px;
    font-size:13px;font-weight:500;
    color:var(--brand);
    background:rgba(91,59,255,.1);
    transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
  }
  .tag-cloud a:hover{background:var(--brand);color:#fff;transform:translateY(-1px);}

  .rec-list{margin-top:16px;display:flex;flex-direction:column;}
  .rec-item{
    display:flex;gap:12px;align-items:flex-start;
    padding:12px 0;
    border-bottom:1px dashed var(--line);
    transition:padding-left .2s var(--ease);
  }
  .rec-item:last-child{border-bottom:0;}
  .rec-item:hover{padding-left:4px;}
  .rec-item .idx{
    flex:0 0 auto;
    width:22px;height:22px;border-radius:8px;
    display:flex;align-items:center;justify-content:center;
    font-size:12px;font-weight:700;
    color:var(--brand);background:rgba(91,59,255,.1);
    font-variant-numeric:tabular-nums;
  }
  .rec-item .rec-title{font-size:14px;font-weight:600;line-height:1.6;}
  .rec-item .rec-title:hover{color:var(--brand);}
  .rec-item .rec-time{font-size:12px;color:var(--text-weak);margin-top:2px;}

  .sub-form{margin-top:18px;display:flex;flex-direction:column;gap:10px;}
  .field{
    width:100%;height:46px;
    padding:0 16px;
    border-radius:var(--radius-m);
    border:1px solid var(--line);
    background:#fff;
    color:var(--text);
    outline:none;
    transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
  }
  .field::placeholder{color:var(--text-weak);}
  .field:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(91,59,255,.18);}
  .field-error{border-color:var(--accent);box-shadow:0 0 0 3px rgba(255,106,61,.16);}
  .error-text{font-size:13px;color:var(--accent);}
  .form-note{font-size:12px;color:var(--text-weak);}

  /* ============ Flow band ============ */
  .flow-band{
    display:grid;
    grid-template-columns:1fr;
    gap:16px;
    counter-reset:step;
  }
  @media (min-width:768px){ .flow-band{grid-template-columns:repeat(4,minmax(0,1fr));gap:0;} }
  .flow-step{
    position:relative;
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius-l);
    padding:22px 20px;
    transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
  }
  @media (min-width:768px){
    .flow-step{border-radius:0;border-right:0;}
    .flow-step:first-child{border-top-left-radius:var(--radius-l);border-bottom-left-radius:var(--radius-l);}
    .flow-step:last-child{border-right:1px solid var(--line);border-top-right-radius:var(--radius-l);border-bottom-right-radius:var(--radius-l);}
  }
  .flow-step::after{
    content:"";
    display:none;
  }
  @media (min-width:768px){
    .flow-step:not(:last-child)::after{
      content:"";
      display:block;
      position:absolute;right:-13px;top:50%;
      width:26px;height:0;
      border-top:1px dashed rgba(91,59,255,.45);
      z-index:3;
    }
  }
  .flow-step:hover{box-shadow:var(--shadow-md);border-color:rgba(91,59,255,.22);transform:translateY(-3px);}
  .step-num{
    display:inline-flex;align-items:center;justify-content:center;
    min-width:34px;height:26px;padding:0 10px;
    border-radius:999px;
    font-size:13px;font-weight:700;
    color:#fff;
    background:linear-gradient(120deg,#5B3BFF,#00D9A6);
    font-variant-numeric:tabular-nums;
  }
  .flow-step h3{margin-top:14px;font-size:17px;font-weight:700;}
  .flow-step p{margin-top:8px;font-size:14px;line-height:1.75;color:var(--text-sub);}

  /* ============ FAQ ============ */
  .faq-card{
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius-l);
    box-shadow:var(--shadow-sm);
    overflow:hidden;
  }
  .faq-item + .faq-item{border-top:1px solid var(--line);}
  .faq-h{margin:0;}
  .faq-q{
    width:100%;
    display:flex;align-items:center;justify-content:space-between;gap:18px;
    padding:22px 24px;
    text-align:left;
    font-size:17px;font-weight:600;
    color:var(--text);
    transition:background .2s var(--ease),color .2s var(--ease);
  }
  .faq-q:hover{background:rgba(91,59,255,.04);color:var(--brand);}
  .faq-icon{
    position:relative;
    flex:0 0 auto;
    width:26px;height:26px;
    border-radius:50%;
    border:1px solid rgba(91,59,255,.4);
    transition:transform .25s var(--ease),background .25s var(--ease),border-color .25s var(--ease);
  }
  .faq-icon::before,.faq-icon::after{
    content:"";position:absolute;left:50%;top:50%;
    background:var(--brand);border-radius:2px;
    transform:translate(-50%,-50%);
    transition:background .25s var(--ease);
  }
  .faq-icon::before{width:11px;height:2px;}
  .faq-icon::after{width:2px;height:11px;}
  .faq-item.open .faq-icon{transform:rotate(45deg);background:var(--brand);border-color:var(--brand);}
  .faq-item.open .faq-icon::before,.faq-item.open .faq-icon::after{background:#fff;}
  .faq-a{
    max-height:0;overflow:hidden;
    transition:max-height .3s var(--ease);
  }
  .faq-a-inner{
    padding:0 24px 22px;
    font-size:15px;line-height:1.85;color:var(--text-sub);
    opacity:.001;
    transition:opacity .3s var(--ease);
  }
  .faq-item.open .faq-a-inner{opacity:1;}

  /* ============ CTA band ============ */
  .cta-band{
    position:relative;
    overflow:hidden;
    background:linear-gradient(120deg,#5B3BFF,#00D9A6);
    padding:56px 0;
  }
  .cta-band::before{
    content:"";
    position:absolute;top:-60%;left:-10%;
    width:60%;height:220%;
    background:linear-gradient(90deg,rgba(255,255,255,.22),rgba(255,255,255,0));
    transform:rotate(18deg);
    pointer-events:none;
  }
  .cta-band::after{
    content:"";
    position:absolute;right:-140px;bottom:-180px;
    width:420px;height:420px;border-radius:50%;
    background:radial-gradient(circle,rgba(255,255,255,.28),transparent 66%);
    pointer-events:none;
  }
  .cta-inner{
    position:relative;z-index:2;
    display:flex;flex-direction:column;gap:24px;
  }
  @media (min-width:1024px){
    .cta-inner{flex-direction:row;align-items:center;justify-content:space-between;gap:40px;}
  }
  .cta-inner h2{
    color:#fff;
    font-size:clamp(22px,2.6vw,32px);
    font-weight:800;
    line-height:1.3;
  }
  .cta-inner p{margin-top:12px;color:rgba(255,255,255,.86);font-size:15px;max-width:620px;}
  .cta-actions{display:flex;flex-direction:column;gap:12px;flex:0 0 auto;}
  @media (min-width:640px){ .cta-actions{flex-direction:row;} }
  @media (max-width:639px){ .cta-actions .btn{width:100%;} }
  .btn-on-brand{background:#fff;color:var(--brand);box-shadow:0 16px 36px -18px rgba(0,0,0,.55);}
  .btn-on-brand:hover{filter:brightness(1.02);transform:translateY(-1px);box-shadow:0 20px 44px -18px rgba(0,0,0,.6);}
  .btn-on-brand:active{transform:translateY(0);}
  .btn-outline-light{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.7);}
  .btn-outline-light:hover{background:rgba(255,255,255,.16);border-color:#fff;transform:translateY(-1px);}
  .btn-outline-light:active{transform:translateY(0);}

  /* ============ Footer ============ */
  .site-footer{
    position:relative;
    background:var(--ink-900);
    color:var(--ink-300);
    padding:64px 0 0;
    overflow:hidden;
  }
  .site-footer::before{
    content:"";
    position:absolute;left:-160px;top:-160px;
    width:420px;height:420px;border-radius:50%;
    background:radial-gradient(circle,rgba(91,59,255,.32),transparent 68%);
    pointer-events:none;
  }
  .foot-title{
    color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;
  }
  .foot-link{
    display:inline-block;
    padding:6px 0;
    font-size:14px;
    color:var(--ink-300);
    transition:color .2s var(--ease),transform .2s var(--ease);
  }
  .foot-link:hover{color:var(--brand-mint);transform:translateX(2px);}
  .badge-dark{
    display:inline-flex;align-items:center;
    padding:5px 12px;border-radius:999px;
    font-size:12px;font-weight:600;
    color:var(--ink-100);
    background:rgba(255,255,255,.12);
    border:1px solid rgba(255,255,255,.08);
  }
  .foot-bottom{
    margin-top:48px;
    padding:22px 0 28px;
    border-top:1px solid rgba(255,255,255,.08);
    display:flex;flex-direction:column;gap:8px;
    font-size:13px;color:#6E7690;
  }
  @media (min-width:768px){ .foot-bottom{flex-direction:row;align-items:center;justify-content:space-between;} }

  @media (prefers-reduced-motion:reduce){
    *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
    .info-card:hover,.stat-card:hover,.chip:hover,.btn:hover,.tag-cloud a:hover,.flow-step:hover{transform:none !important;}
    .info-card:hover .card-cover img{transform:none !important;}
  }

/* roulang page: category2 */
:root{
    --brand:#5B3BFF;
    --brand-light:#7A5CFF;
    --mint:#00D9A6;
    --flame:#FF6A3D;
    --ink:#0B0D18;
    --ink-card:#141830;
    --ink-line:rgba(255,255,255,.08);
    --ink-text:#F2F4FF;
    --ink-weak:#A8AFC9;
    --page:#F4F5FB;
    --card:#FFFFFF;
    --line:#E6E8F0;
    --text:#10132A;
    --text-2:#5C6480;
    --text-3:#8A90A6;
    --r-sm:10px;
    --r-md:14px;
    --r-lg:20px;
    --r-xl:28px;
    --sh-sm:0 1px 2px rgba(16,19,42,.06);
    --sh-md:0 8px 24px -12px rgba(91,59,255,.25);
    --sh-lg:0 24px 60px -24px rgba(91,59,255,.35);
    --sh-dark:0 20px 50px -20px rgba(0,0,0,.6);
    --ease:cubic-bezier(.2,.7,.3,1);
  }

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

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

  body{
    margin:0;
    font-family:system-ui,"PingFang SC","Microsoft YaHei",sans-serif;
    font-size:16px;
    line-height:1.85;
    color:var(--text);
    background:var(--page);
    -webkit-font-smoothing:antialiased;
  }

  img{ max-width:100%; display:block; }
  a{ color:inherit; text-decoration:none; }
  button{ font:inherit; color:inherit; cursor:pointer; border:none; background:none; }
  input{ font:inherit; }
  ul{ list-style:none; margin:0; padding:0; }

  a:focus-visible,
  button:focus-visible,
  input:focus-visible,
  summary:focus-visible{
    outline:2px solid var(--brand);
    outline-offset:3px;
    border-radius:6px;
  }

  .container-page{
    width:100%;
    max-width:1280px;
    margin:0 auto;
    padding:0 20px;
  }

  .num{ font-variant-numeric:tabular-nums; }

  /* ============ 头部导航 ============ */
  .site-header{
    position:sticky;
    top:0;
    z-index:80;
    background:rgba(11,13,24,.88);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border-bottom:1px solid var(--ink-line);
    transition:box-shadow .25s var(--ease), background .25s var(--ease);
  }
  .site-header.is-scrolled{
    background:rgba(11,13,24,.95);
    box-shadow:0 18px 40px -22px rgba(0,0,0,.85);
  }

  .topbar-inner{
    display:flex;
    align-items:center;
    gap:18px;
    height:56px;
  }

  .brand{ display:flex; align-items:center; gap:10px; flex-shrink:0; }
  .brand-mark{
    width:32px; height:32px;
    display:grid; place-items:center;
    border-radius:var(--r-sm);
    background:linear-gradient(120deg,var(--brand),var(--mint));
    color:#fff;
    font-weight:800;
    font-size:15px;
    letter-spacing:.02em;
    box-shadow:0 10px 22px -12px rgba(91,59,255,.9);
  }
  .brand-name{
    color:#fff;
    font-weight:700;
    font-size:15px;
    letter-spacing:.01em;
    white-space:nowrap;
  }

  .hotlinks{ display:none; align-items:center; gap:8px; }
  .hot-chip{
    display:inline-flex;
    align-items:center;
    height:28px;
    padding:0 12px;
    border-radius:999px;
    font-size:12.5px;
    font-weight:600;
    color:var(--flame);
    background:rgba(255,106,61,.12);
    transition:background .22s var(--ease), color .22s var(--ease), transform .22s var(--ease);
    white-space:nowrap;
  }
  .hot-chip:hover{ background:var(--flame); color:#fff; transform:translateY(-1px); }

  .top-actions{
    display:flex;
    align-items:center;
    gap:10px;
    margin-left:auto;
  }

  .icon-btn{
    width:40px; height:40px;
    display:grid; place-items:center;
    border-radius:999px;
    border:1px solid var(--ink-line);
    color:var(--ink-weak);
    transition:color .22s var(--ease), border-color .22s var(--ease), background .22s var(--ease);
  }
  .icon-btn:hover{ color:#fff; border-color:rgba(255,255,255,.24); background:rgba(255,255,255,.06); }
  .icon-btn:active{ transform:scale(.96); }

  .search-wrap{
    display:flex;
    align-items:center;
    overflow:hidden;
    width:0;
    opacity:0;
    transition:width .28s var(--ease), opacity .22s var(--ease);
  }
  .search-wrap.open{ width:min(320px,44vw); opacity:1; }
  .search-input{
    width:100%;
    height:40px;
    padding:0 16px;
    border-radius:999px;
    border:1px solid rgba(255,255,255,.14);
    background:rgba(255,255,255,.06);
    color:var(--ink-text);
    font-size:14px;
    outline:none;
    transition:border-color .22s var(--ease), box-shadow .22s var(--ease), background .22s var(--ease);
  }
  .search-input::placeholder{ color:#7C839C; }
  .search-input:focus{
    border-color:var(--brand-light);
    background:rgba(255,255,255,.1);
    box-shadow:0 0 0 2px rgba(91,59,255,.35);
  }

  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    height:44px;
    padding:0 22px;
    border-radius:999px;
    font-size:14.5px;
    font-weight:600;
    white-space:nowrap;
    transition:transform .22s var(--ease), box-shadow .22s var(--ease), background .22s var(--ease), color .22s var(--ease), border-color .22s var(--ease), filter .22s var(--ease);
  }
  .btn:active{ transform:translateY(0) scale(.99); }

  .btn-primary{
    background:linear-gradient(120deg,var(--brand),var(--brand-light));
    color:#fff;
    box-shadow:var(--sh-md);
  }
  .btn-primary:hover{ filter:brightness(1.08); box-shadow:var(--sh-lg); transform:translateY(-1px); }

  .btn-outline{
    background:transparent;
    border:1px solid rgba(91,59,255,.45);
    color:var(--brand);
  }
  .btn-outline:hover{ background:rgba(91,59,255,.08); border-color:var(--brand); transform:translateY(-1px); }

  .btn-outline-dark{
    background:transparent;
    border:1px solid rgba(255,255,255,.26);
    color:#fff;
  }
  .btn-outline-dark:hover{ background:rgba(255,255,255,.1); border-color:rgba(255,255,255,.5); transform:translateY(-1px); }

  .btn-sm{ height:38px; padding:0 18px; font-size:13.5px; }

  .burger{ display:grid; }

  .channel-row{
    border-top:1px solid rgba(255,255,255,.05);
  }
  .channel-nav{
    display:flex;
    align-items:center;
    gap:4px;
    height:46px;
    overflow-x:auto;
    scrollbar-width:none;
  }
  .channel-nav::-webkit-scrollbar{ display:none; }
  .channel-link{
    position:relative;
    display:inline-flex;
    align-items:center;
    height:32px;
    padding:0 14px;
    border-radius:999px;
    font-size:14px;
    color:var(--ink-weak);
    white-space:nowrap;
    transition:color .2s var(--ease), background .2s var(--ease);
  }
  .channel-link:hover{ color:#fff; background:rgba(255,255,255,.07); }
  .channel-link.active{ color:#fff; font-weight:600; background:rgba(255,255,255,.08); }
  .channel-link.active::after{
    content:"";
    position:absolute;
    left:14px; right:14px; bottom:-7px;
    height:2px;
    border-radius:2px;
    background:linear-gradient(90deg,var(--brand),var(--mint));
  }

  /* 移动抽屉 */
  .drawer{
    display:none;
    padding:16px 0 22px;
    border-top:1px solid var(--ink-line);
    background:rgba(11,13,24,.98);
  }
  .drawer.open{ display:block; }
  .drawer-search{
    display:flex; gap:10px; align-items:center;
    background:rgba(255,255,255,.06);
    border:1px solid rgba(255,255,255,.12);
    border-radius:var(--r-md);
    padding:0 14px;
    height:46px;
    margin-bottom:16px;
  }
  .drawer-search input{
    flex:1; background:none; border:none; outline:none; color:var(--ink-text); font-size:14px;
  }
  .drawer-search input::placeholder{ color:#7C839C; }
  .drawer-group-title{
    font-size:12px; letter-spacing:.08em; color:#7C839C; font-weight:600; margin:14px 0 8px;
  }
  .drawer-links{ display:flex; flex-direction:column; }
  .drawer-link{
    display:flex; align-items:center;
    min-height:44px;
    color:var(--ink-text);
    font-size:15px;
    border-bottom:1px solid rgba(255,255,255,.06);
  }
  .drawer-link.active{ color:var(--mint); font-weight:600; }
  .drawer-chips{ display:flex; flex-wrap:wrap; gap:8px; margin-top:6px; }
  .drawer-cta{ margin-top:18px; }
  .drawer-cta .btn{ width:100%; }

  /* ============ 页面头部 banner ============ */
  .page-hero{
    position:relative;
    background-color:var(--ink);
    overflow:hidden;
    isolation:isolate;
  }
  .page-hero::before{
    content:"";
    position:absolute; inset:0;
    background-image:url('/assets/images/backpic/back-2.webp');
    background-size:cover;
    background-position:center;
    opacity:.55;
    z-index:-2;
  }
  .page-hero::after{
    content:"";
    position:absolute; inset:0;
    background:
      radial-gradient(760px 360px at 12% 8%, rgba(91,59,255,.42), transparent 70%),
      radial-gradient(620px 320px at 88% 96%, rgba(0,217,166,.28), transparent 72%),
      linear-gradient(100deg, rgba(11,13,24,.94) 0%, rgba(11,13,24,.78) 52%, rgba(11,13,24,.58) 100%);
    z-index:-1;
  }
  .hero-inner{ padding:56px 0 60px; }

  .eyebrow{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:12px;
    font-weight:600;
    letter-spacing:.08em;
    color:var(--mint);
  }
  .eyebrow::before{
    content:"";
    width:6px; height:6px; border-radius:50%;
    background:linear-gradient(120deg,var(--brand-light),var(--mint));
  }

  .page-title{
    margin:16px 0 0;
    font-size:clamp(30px,4.6vw,52px);
    font-weight:800;
    line-height:1.15;
    letter-spacing:-.01em;
    color:#fff;
  }
  .page-lead{
    margin:16px 0 0;
    max-width:720px;
    font-size:16.5px;
    line-height:1.9;
    color:#C8CEE6;
  }

  .stat-row{
    display:flex;
    flex-wrap:wrap;
    gap:12px;
    margin-top:28px;
  }
  .stat-badge{
    display:inline-flex;
    align-items:baseline;
    gap:6px;
    padding:9px 16px;
    border-radius:999px;
    background:rgba(255,255,255,.1);
    border:1px solid rgba(255,255,255,.12);
    color:var(--ink-text);
    font-size:13px;
  }
  .stat-badge strong{
    font-size:16px;
    font-weight:800;
    color:#fff;
    font-variant-numeric:tabular-nums;
  }

  /* ============ 主体布局 ============ */
  .main-wrap{ padding:48px 0 0; }

  .layout{
    display:grid;
    grid-template-columns:minmax(0,1fr);
    gap:32px;
    align-items:start;
  }

  .section-head{
    display:flex;
    align-items:flex-end;
    justify-content:space-between;
    gap:16px;
    flex-wrap:wrap;
    margin-bottom:22px;
  }
  .section-title{
    margin:0;
    font-size:clamp(22px,2.6vw,30px);
    font-weight:700;
    line-height:1.25;
    letter-spacing:-.01em;
  }
  .section-sub{
    margin:8px 0 0;
    font-size:14.5px;
    color:var(--text-2);
  }

  /* 标签筛选带 */
  .filter-bar{
    display:flex;
    gap:10px;
    overflow-x:auto;
    padding:4px 2px 14px;
    scrollbar-width:none;
    border-bottom:1px solid var(--line);
    margin-bottom:20px;
  }
  .filter-bar::-webkit-scrollbar{ display:none; }
  .filter-chip{
    display:inline-flex;
    align-items:center;
    height:38px;
    padding:0 18px;
    border-radius:999px;
    border:1px solid var(--line);
    background:#fff;
    color:var(--text-2);
    font-size:14px;
    white-space:nowrap;
    transition:color .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease), box-shadow .2s var(--ease), transform .2s var(--ease);
  }
  .filter-chip:hover{ border-color:rgba(91,59,255,.45); color:var(--brand); transform:translateY(-1px); }
  .filter-chip.active{
    background:linear-gradient(120deg,var(--brand),var(--brand-light));
    border-color:transparent;
    color:#fff;
    box-shadow:var(--sh-md);
  }

  /* 行式列表 */
  .row-list{ display:flex; flex-direction:column; gap:14px; }

  .act-row{
    position:relative;
    display:grid;
    grid-template-columns:44px 92px minmax(0,1fr) auto;
    gap:18px;
    align-items:center;
    padding:18px 22px 18px 24px;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--r-lg);
    box-shadow:var(--sh-sm);
    overflow:hidden;
    transition:transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s var(--ease), background .22s var(--ease);
  }
  .act-row::before{
    content:"";
    position:absolute;
    left:0; top:0; bottom:0;
    width:3px;
    background:linear-gradient(180deg,var(--brand),var(--mint));
    transform:scaleY(0);
    transform-origin:top;
    transition:transform .24s var(--ease);
  }
  .act-row:hover{
    background:linear-gradient(90deg, rgba(91,59,255,.07), rgba(0,217,166,.04) 65%, #fff);
    border-color:rgba(91,59,255,.28);
    box-shadow:var(--sh-md);
    transform:translateY(-2px);
  }
  .act-row:hover::before{ transform:scaleY(1); }

  .row-index{
    font-size:19px;
    font-weight:800;
    color:#C6CBE0;
    font-variant-numeric:tabular-nums;
    letter-spacing:.02em;
  }
  .act-row:hover .row-index{ color:var(--brand); }

  .row-thumb{
    width:92px; height:92px;
    border-radius:var(--r-md);
    overflow:hidden;
    background:#EEF0F7;
    flex-shrink:0;
  }
  .row-thumb img{
    width:100%; height:100%;
    object-fit:cover;
    transition:transform .3s var(--ease);
  }
  .act-row:hover .row-thumb img{ transform:scale(1.06); }

  .row-title{
    margin:0;
    font-size:18px;
    font-weight:700;
    line-height:1.45;
    letter-spacing:-.005em;
  }
  .row-title a{ transition:color .2s var(--ease); }
  .row-title a:hover{ color:var(--brand); }

  .row-desc{
    margin:8px 0 0;
    font-size:14.5px;
    line-height:1.72;
    color:var(--text-2);
    display:-webkit-box;
    -webkit-line-clamp:2;
    -webkit-box-orient:vertical;
    overflow:hidden;
  }

  .row-meta{
    display:flex;
    align-items:center;
    gap:10px;
    flex-wrap:wrap;
    margin-top:12px;
  }
  .tag-pill{
    display:inline-flex;
    align-items:center;
    height:24px;
    padding:0 11px;
    border-radius:999px;
    font-size:12.5px;
    font-weight:600;
    color:var(--brand);
    background:rgba(91,59,255,.1);
  }
  .meta-time{ font-size:13px; color:var(--text-3); font-variant-numeric:tabular-nums; }

  .row-side{
    display:flex;
    flex-direction:column;
    align-items:flex-end;
    gap:10px;
  }
  .ghost-link{
    display:inline-flex;
    align-items:center;
    gap:6px;
    font-size:13.5px;
    font-weight:600;
    color:var(--brand);
    white-space:nowrap;
  }
  .ghost-link svg{ transition:transform .22s var(--ease); }
  .ghost-link:hover svg{ transform:translateX(3px); }

  .row-empty{
    display:none;
    padding:40px 24px;
    text-align:center;
    background:#fff;
    border:1px dashed var(--line);
    border-radius:var(--r-lg);
    color:var(--text-2);
    font-size:14.5px;
  }
  .row-empty.show{ display:block; }

  /* 侧栏 */
  .sidebar{
    display:flex;
    flex-direction:column;
    gap:20px;
  }
  .side-card{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--r-lg);
    padding:22px;
    box-shadow:var(--sh-sm);
  }
  .side-title{
    margin:0 0 14px;
    font-size:16px;
    font-weight:700;
    display:flex;
    align-items:center;
    gap:8px;
  }
  .side-title::before{
    content:"";
    width:4px; height:16px;
    border-radius:2px;
    background:linear-gradient(180deg,var(--brand),var(--mint));
  }

  .cloud{ display:flex; flex-wrap:wrap; gap:9px; }
  .cloud a{
    display:inline-flex;
    align-items:center;
    height:30px;
    padding:0 13px;
    border-radius:999px;
    font-size:13px;
    color:var(--text-2);
    background:#F1F2F9;
    transition:background .2s var(--ease), color .2s var(--ease), transform .2s var(--ease);
  }
  .cloud a:hover{ background:rgba(91,59,255,.1); color:var(--brand); transform:translateY(-1px); }

  .rec-item{
    display:flex;
    gap:12px;
    padding:12px 0;
    border-bottom:1px solid var(--line);
    transition:padding-left .2s var(--ease);
  }
  .rec-item:last-child{ border-bottom:none; padding-bottom:0; }
  .rec-item:hover{ padding-left:4px; }
  .rec-item img{
    width:64px; height:64px;
    border-radius:var(--r-md);
    object-fit:cover;
    flex-shrink:0;
  }
  .rec-item h4{
    margin:0;
    font-size:14.5px;
    font-weight:600;
    line-height:1.55;
    display:-webkit-box;
    -webkit-line-clamp:2;
    -webkit-box-orient:vertical;
    overflow:hidden;
    transition:color .2s var(--ease);
  }
  .rec-item:hover h4{ color:var(--brand); }
  .rec-item span{ display:block; margin-top:6px; font-size:12.5px; color:var(--text-3); }

  .sub-note{ margin:0 0 14px; font-size:13.5px; line-height:1.8; color:var(--text-2); }
  .sub-form{ display:flex; flex-direction:column; gap:10px; }
  .sub-input{
    width:100%;
    height:44px;
    padding:0 16px;
    border-radius:var(--r-md);
    border:1px solid var(--line);
    background:#fff;
    font-size:14px;
    outline:none;
    transition:border-color .2s var(--ease), box-shadow .2s var(--ease);
  }
  .sub-input::placeholder{ color:var(--text-3); }
  .sub-input:focus{ border-color:var(--brand); box-shadow:0 0 0 2px rgba(91,59,255,.2); }
  .sub-form .btn{ width:100%; }
  .sub-tip{ font-size:12.5px; color:var(--text-3); }

  /* FAQ */
  .faq-section{ padding:88px 0 0; }
  .faq-card{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--r-xl);
    padding:8px 26px;
    box-shadow:var(--sh-sm);
  }
  .faq-item{ border-bottom:1px solid var(--line); }
  .faq-item:last-child{ border-bottom:none; }
  .faq-item summary{
    list-style:none;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:18px;
    padding:20px 0;
    cursor:pointer;
    font-size:17px;
    font-weight:600;
    line-height:1.6;
    transition:color .2s var(--ease);
  }
  .faq-item summary::-webkit-details-marker{ display:none; }
  .faq-item summary:hover{ color:var(--brand); }
  .faq-icon{
    position:relative;
    width:26px; height:26px;
    flex-shrink:0;
    border-radius:50%;
    background:rgba(91,59,255,.1);
    transition:transform .26s var(--ease), background .26s var(--ease);
  }
  .faq-icon::before,
  .faq-icon::after{
    content:"";
    position:absolute;
    left:50%; top:50%;
    background:var(--brand);
    transform:translate(-50%,-50%);
    border-radius:2px;
  }
  .faq-icon::before{ width:12px; height:2px; }
  .faq-icon::after{ width:2px; height:12px; }
  .faq-item[open] .faq-icon{ transform:rotate(45deg); background:rgba(0,217,166,.16); }
  .faq-item[open] .faq-icon::before,
  .faq-item[open] .faq-icon::after{ background:var(--mint); }
  .faq-body{
    padding:0 42px 22px 0;
    font-size:15px;
    line-height:1.85;
    color:var(--text-2);
    animation:fadeIn .28s var(--ease);
  }
  @keyframes fadeIn{ from{ opacity:0; transform:translateY(-4px);} to{ opacity:1; transform:none;} }

  /* CTA 带 */
  .cta-band{
    position:relative;
    margin-top:96px;
    background:linear-gradient(120deg,var(--brand),#7A5CFF 42%,var(--mint));
    overflow:hidden;
    isolation:isolate;
  }
  .cta-band::before{
    content:"";
    position:absolute;
    top:-60%; left:-10%;
    width:60%; height:220%;
    background:linear-gradient(90deg, rgba(255,255,255,.24), rgba(255,255,255,0));
    transform:rotate(18deg);
    z-index:-1;
  }
  .cta-band::after{
    content:"";
    position:absolute;
    inset:0;
    background:radial-gradient(600px 240px at 88% 20%, rgba(255,255,255,.22), transparent 70%);
    z-index:-1;
  }
  .cta-inner{
    display:flex;
    flex-direction:column;
    gap:24px;
    padding:52px 0;
  }
  .cta-title{
    margin:0;
    font-size:clamp(22px,2.8vw,32px);
    font-weight:800;
    line-height:1.3;
    color:#fff;
    letter-spacing:-.01em;
  }
  .cta-sub{
    margin:12px 0 0;
    font-size:15px;
    line-height:1.85;
    color:rgba(255,255,255,.88);
    max-width:640px;
  }
  .cta-actions{ display:flex; flex-wrap:wrap; gap:14px; }
  .cta-actions .btn-white{
    background:#fff;
    color:var(--brand);
    box-shadow:0 16px 34px -18px rgba(0,0,0,.6);
  }
  .cta-actions .btn-white:hover{ filter:brightness(.98); transform:translateY(-1px); }
  .cta-actions .btn-outline-light{
    border:1px solid rgba(255,255,255,.55);
    color:#fff;
    background:rgba(255,255,255,.08);
  }
  .cta-actions .btn-outline-light:hover{ background:rgba(255,255,255,.18); }

  /* ============ 页脚 ============ */
  .site-footer{
    position:relative;
    background:var(--ink);
    color:var(--ink-weak);
    padding:64px 0 0;
    overflow:hidden;
  }
  .site-footer::before{
    content:"";
    position:absolute;
    top:-180px; left:-120px;
    width:520px; height:520px;
    border-radius:50%;
    background:radial-gradient(circle, rgba(91,59,255,.35), transparent 68%);
    pointer-events:none;
  }
  .site-footer::after{
    content:"";
    position:absolute;
    bottom:-220px; right:-140px;
    width:520px; height:520px;
    border-radius:50%;
    background:radial-gradient(circle, rgba(0,217,166,.22), transparent 70%);
    pointer-events:none;
  }
  .foot-title{
    margin:0 0 16px;
    font-size:14px;
    font-weight:700;
    color:#fff;
    letter-spacing:.04em;
  }
  .foot-link{
    display:inline-flex;
    align-items:center;
    min-height:34px;
    font-size:14px;
    color:var(--ink-weak);
    transition:color .2s var(--ease), transform .2s var(--ease);
  }
  .foot-link:hover{ color:var(--mint); transform:translateX(2px); }
  .badge-dark{
    display:inline-flex;
    align-items:center;
    height:26px;
    padding:0 12px;
    border-radius:999px;
    font-size:12.5px;
    color:#C8CEE6;
    background:rgba(255,255,255,.08);
    border:1px solid rgba(255,255,255,.08);
  }
  .site-footer p{ margin:0; color:#9AA2BC; }
  .foot-bottom{
    display:flex;
    flex-direction:column;
    gap:8px;
    margin-top:44px;
    padding:22px 0 28px;
    border-top:1px solid rgba(255,255,255,.08);
    font-size:13px;
    color:#7C839C;
  }

  /* ============ 响应式 ============ */
  @media (min-width:640px){
    .container-page{ padding:0 24px; }
    .topbar-inner{ height:60px; }
    .cta-actions{ flex-direction:row; }
  }

  @media (min-width:768px){
    .hotlinks{ display:flex; }
    .page-hero{ }
    .hero-inner{ padding:72px 0 76px; }
    .foot-bottom{ flex-direction:row; justify-content:space-between; align-items:center; }
    .cta-inner{ flex-direction:row; align-items:center; justify-content:space-between; }
    .cta-inner .cta-text{ max-width:640px; }
  }

  @media (min-width:1024px){
    .container-page{ padding:0 32px; }
    .topbar-inner{ height:64px; }
    .brand-mark{ width:34px; height:34px; font-size:16px; }
    .brand-name{ font-size:15.5px; }
    .search-wrap{ display:flex; }
    .burger{ display:none; }
    .layout{ grid-template-columns:minmax(0,1fr) 320px; gap:32px; }
    .sidebar{ position:sticky; top:132px; }
    .main-wrap{ padding:64px 0 0; }
  }

  @media (max-width:1023px){
    .sidebar{ order:2; }
    .act-row{ grid-template-columns:36px 80px minmax(0,1fr); }
    .row-side{ grid-column:2 / -1; align-items:flex-start; flex-direction:row; justify-content:space-between; width:100%; }
  }

  @media (max-width:639px){
    .act-row{
      grid-template-columns:32px minmax(0,1fr);
      padding:18px 18px 18px 20px;
      gap:14px;
    }
    .row-thumb{ width:72px; height:72px; grid-column:1 / -1; }
    .row-index{ font-size:16px; }
    .row-side{ grid-column:1 / -1; }
    .faq-card{ padding:4px 18px; }
    .faq-item summary{ font-size:15.5px; padding:18px 0; }
    .faq-body{ padding-right:0; }
    .stat-badge{ font-size:12.5px; padding:8px 13px; }
    .hero-inner{ padding:44px 0 48px; }
    .main-wrap{ padding:36px 0 0; }
    .faq-section{ padding:64px 0 0; }
    .cta-band{ margin-top:64px; }
  }

  @media (prefers-reduced-motion:reduce){
    *{ transition-duration:.01ms !important; animation-duration:.01ms !important; }
    .act-row:hover{ transform:none; }
    .act-row:hover .row-thumb img{ transform:none; }
  }