/* roulang page: index */
:root{
  --bg:#05070E;
  --layer-1:#0A1120;
  --layer-2:#101A2E;
  --primary:#2E6BFF;
  --accent:#24E3B4;
  --amber:#FF9E2C;
  --text:#EAF2FF;
  --text-2:#9AAECB;
  --text-3:#61748F;
  --ok:#3ECF8E;
  --warn:#FFB020;
  --err:#FF5C63;
  --glass-bg:rgba(255,255,255,.05);
  --glass-bg-fallback:#0F1930;
  --glass-border:rgba(140,180,255,.14);
  --glass-border-hi:rgba(140,180,255,.3);
  --radius-card:18px;
  --radius-panel:24px;
  --radius-img:16px;
  --radius-btn:12px;
  --radius-pill:999px;
  --shadow-card:0 18px 40px rgba(2,6,20,.55);
  --shadow-glow:0 0 0 1px rgba(36,227,180,.35),0 10px 30px rgba(36,227,180,.22);
  --tr:200ms ease-out;
  --sec-pad:96px;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:'HarmonyOS Sans SC','PingFang SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--radius-img)}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:800;letter-spacing:-.4px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:var(--sec-pad) 0}
.section--tight{padding:64px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.section-head h2{font-size:clamp(24px,2.6vw,34px)}
.section-head .sub{color:var(--text-2);font-size:15px;margin-top:10px;max-width:640px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.06em;color:var(--accent);background:rgba(36,227,180,.1);border:1px solid rgba(36,227,180,.24);padding:4px 12px;border-radius:var(--radius-pill);margin-bottom:16px}
.eyebrow--amber{color:var(--amber);background:rgba(255,158,44,.1);border-color:rgba(255,158,44,.26)}
.text-link{color:var(--accent);font-size:15px;font-weight:600;display:inline-flex;align-items:center;gap:6px;transition:gap var(--tr),color var(--tr)}
.text-link:hover{gap:12px}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;border-radius:var(--radius-btn);font-weight:700;font-size:15px;padding:13px 24px;transition:transform var(--tr),box-shadow var(--tr),background var(--tr),color var(--tr),border-color var(--tr);white-space:nowrap;cursor:pointer}
.btn-primary{background:linear-gradient(135deg,#24E3B4 0%,#12B98F 100%);color:#04140F;box-shadow:0 0 0 1px rgba(36,227,180,.35),0 10px 30px rgba(36,227,180,.22)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(36,227,180,.6),0 16px 38px rgba(36,227,180,.34)}
.btn-outline{background:transparent;color:var(--text);border:1px solid rgba(36,227,180,.42)}
.btn-outline:hover{background:rgba(36,227,180,.08);border-color:rgba(36,227,180,.7);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--text-2);padding:10px 6px;font-weight:600}
.btn-ghost:hover{color:var(--accent)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn[disabled],.btn.is-loading{opacity:.45;box-shadow:none;transform:none;pointer-events:none}
.btn.is-loading .btn-label::after{content:'···'}

.badge{display:inline-flex;align-items:center;font-size:12px;letter-spacing:.06em;padding:3px 11px;border-radius:var(--radius-pill);background:rgba(36,227,180,.12);color:var(--accent);border:1px solid rgba(36,227,180,.22)}
.badge--amber{background:rgba(255,158,44,.12);color:var(--amber);border-color:rgba(255,158,44,.26)}
.badge--blue{background:rgba(46,107,255,.14);color:#8FB4FF;border-color:rgba(46,107,255,.3)}

/* Header */
.site-header{position:sticky;top:0;z-index:80;background:rgba(5,7,14,.74);backdrop-filter:blur(18px) saturate(120%);-webkit-backdrop-filter:blur(18px) saturate(120%);border-bottom:1px solid transparent;transition:background var(--tr),border-color var(--tr)}
.site-header.is-scrolled{background:rgba(6,9,18,.92);border-bottom-color:rgba(140,180,255,.14)}
.nav-inner{height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:17px;letter-spacing:-.3px;color:var(--text)}
.logo-mark{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,rgba(46,107,255,.9),rgba(36,227,180,.85));display:grid;place-items:center;box-shadow:0 0 0 1px rgba(140,180,255,.25),0 8px 22px rgba(36,227,180,.18);flex:0 0 auto}
.logo-mark span{width:12px;height:12px;border:2px solid #04140F;border-radius:3px;display:block}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-link{position:relative;padding:10px 13px;font-size:15px;color:var(--text-2);border-radius:10px;transition:color var(--tr),background var(--tr)}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.04)}
.nav-link.is-active{color:var(--text);font-weight:700}
.nav-link.is-active::after{content:'';position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--accent);box-shadow:0 0 10px rgba(36,227,180,.85)}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--glass-border);background:rgba(255,255,255,.04);align-items:center;justify-content:center;flex-direction:column;gap:5px}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;transition:transform var(--tr),opacity var(--tr)}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.drawer{position:fixed;inset:0 0 0 auto;width:min(340px,88vw);background:#080D18;border-left:1px solid var(--glass-border);transform:translateX(102%);transition:transform 240ms ease-out;z-index:95;padding:22px;display:flex;flex-direction:column;gap:12px;overflow-y:auto}
.drawer.is-open{transform:translateX(0)}
.drawer .btn{width:100%}
.drawer-title{font-size:12px;letter-spacing:.08em;color:var(--text-3);margin:10px 0 2px}
.drawer-link{display:flex;align-items:center;min-height:48px;padding:0 14px;border-radius:12px;border:1px solid var(--glass-border);color:var(--text-2);background:rgba(255,255,255,.03);font-size:15px}
.drawer-link.is-active{color:var(--text);border-color:rgba(36,227,180,.4);background:rgba(36,227,180,.08)}
.drawer-mask{position:fixed;inset:0;background:rgba(3,5,12,.6);opacity:0;pointer-events:none;transition:opacity 240ms ease-out;z-index:90}
.drawer-mask.is-open{opacity:1;pointer-events:auto}

/* Hero */
.hero{position:relative;padding:84px 0 76px;background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center;overflow:hidden}
.hero::before{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,7,14,.86) 0%,rgba(5,7,14,.94) 55%,var(--bg) 100%)}
.hero::after{content:'';position:absolute;inset:0;background-image:linear-gradient(rgba(140,180,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(140,180,255,.06) 1px,transparent 1px);background-size:56px 56px;mask-image:radial-gradient(circle at 70% 30%,rgba(0,0,0,.9),transparent 72%);-webkit-mask-image:radial-gradient(circle at 70% 30%,rgba(0,0,0,.9),transparent 72%);pointer-events:none}
.hero .glow{position:absolute;width:520px;height:520px;right:-120px;top:-140px;background:radial-gradient(circle,rgba(36,227,180,.16),transparent 66%);filter:blur(10px);pointer-events:none}
.hero .glow--blue{left:-160px;top:180px;right:auto;width:460px;height:460px;background:radial-gradient(circle,rgba(46,107,255,.18),transparent 66%)}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.02fr .98fr;gap:56px;align-items:center}
.hero h1{font-size:clamp(30px,4.4vw,52px);font-weight:800;margin-bottom:20px}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero-sub{font-size:17px;color:var(--text-2);max-width:560px;margin-bottom:30px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.metrics{display:flex;gap:30px;margin-top:38px;flex-wrap:wrap}
.metric{min-width:96px}
.metric dt{font-size:12px;letter-spacing:.06em;color:var(--text-3)}
.metric dd{margin:4px 0 0;font-size:20px;font-weight:800;font-family:'Sora','Inter',sans-serif;color:var(--text)}
.metric dd span{font-size:13px;font-weight:600;color:var(--text-2);margin-left:3px}
.hero-visual{position:relative}
.device-frame{border-radius:var(--radius-panel);border:1px solid var(--glass-border);background:var(--layer-1);padding:12px;box-shadow:var(--shadow-card)}
.device-frame img{width:100%;aspect-ratio:16/10;object-fit:cover}
.float-card{position:absolute;background:rgba(255,255,255,.05);border:1px solid var(--glass-border);border-radius:16px;padding:12px 16px;backdrop-filter:blur(18px) saturate(120%);-webkit-backdrop-filter:blur(18px) saturate(120%);box-shadow:var(--shadow-card);min-width:150px}
.float-card .fc-label{font-size:12px;color:var(--text-3);letter-spacing:.06em}
.float-card .fc-value{font-size:17px;font-weight:800;font-family:'Sora','Inter',sans-serif;color:var(--text)}
.float-card--rating{left:-18px;bottom:56px}
.float-card--update{right:-12px;top:34px}
.stars{color:var(--amber);letter-spacing:2px;font-size:13px}

/* Carousel */
.carousel{position:relative;overflow:hidden;border-radius:var(--radius-panel);border:1px solid var(--glass-border);background:var(--layer-1)}
.carousel-track{display:flex;transition:transform 520ms cubic-bezier(.4,0,.2,1)}
.slide{flex:0 0 100%;padding:14px}
.slide-media{position:relative;border-radius:var(--radius-img);overflow:hidden}
.slide-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.slide-media::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,7,14,0) 40%,rgba(5,7,14,.82) 100%)}
.slide-caption{position:absolute;left:22px;right:22px;bottom:18px;z-index:2;display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.slide-caption h3{font-size:19px}
.slide-caption p{font-size:14px;color:var(--text-2)}
.carousel-nav{display:flex;align-items:center;justify-content:center;gap:16px;margin-top:22px}
.carousel-arrow{width:44px;height:44px;border-radius:50%;border:1px solid var(--glass-border);background:rgba(255,255,255,.04);color:var(--text);transition:background var(--tr),border-color var(--tr),transform var(--tr);display:grid;place-items:center;font-size:17px}
.carousel-arrow:hover{background:rgba(36,227,180,.1);border-color:rgba(36,227,180,.45);transform:translateY(-2px)}
.carousel-dots{display:flex;gap:9px}
.carousel-dot{width:9px;height:9px;border-radius:50%;border:none;background:rgba(154,174,203,.35);padding:0;transition:background var(--tr),transform var(--tr)}
.carousel-dot.is-active{background:var(--accent);transform:scale(1.3);box-shadow:0 0 10px rgba(36,227,180,.7)}

/* System requirements */
.spec-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.spec-card{background:var(--glass-bg-fallback);background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius-card);padding:24px;backdrop-filter:blur(18px) saturate(120%);-webkit-backdrop-filter:blur(18px) saturate(120%);transition:transform var(--tr),border-color var(--tr),box-shadow var(--tr)}
.spec-card:hover{transform:translateY(-4px);border-color:var(--glass-border-hi)}
.spec-card--hi{border-color:rgba(36,227,180,.45);box-shadow:var(--shadow-glow)}
.spec-head{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.icon-round{width:42px;height:42px;border-radius:14px;display:grid;place-items:center;background:rgba(46,107,255,.16);border:1px solid rgba(46,107,255,.28);color:#8FB4FF;font-weight:800;font-size:14px;font-family:'Sora','Inter',sans-serif;flex:0 0 auto}
.icon-round--accent{background:rgba(36,227,180,.16);border-color:rgba(36,227,180,.3);color:var(--accent)}
.spec-head h3{font-size:17px}
.spec-head .ver{font-size:12px;color:var(--text-3);letter-spacing:.06em}
.spec-list dt{font-size:12px;color:var(--text-3);letter-spacing:.05em}
.spec-list dd{margin:2px 0 12px;font-size:15px;color:var(--text);font-weight:600}
.spec-list dd:last-child{margin-bottom:0}

/* Review wall */
.review-wall{columns:2;column-gap:24px}
.review-card{break-inside:avoid;margin-bottom:24px;background:var(--glass-bg-fallback);background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius-card);padding:22px;backdrop-filter:blur(18px) saturate(120%);-webkit-backdrop-filter:blur(18px) saturate(120%);transition:transform var(--tr),border-color var(--tr)}
.review-card:hover{transform:translateY(-4px);border-color:var(--glass-border-hi)}
.review-top{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.avatar{width:38px;height:38px;border-radius:50%;background:linear-gradient(135deg,rgba(46,107,255,.85),rgba(36,227,180,.7));display:grid;place-items:center;font-weight:800;color:#04140F;font-size:14px;flex:0 0 auto}
.review-name{font-weight:700;font-size:15px}
.review-meta{font-size:12px;color:var(--text-3)}
.review-card p{font-size:14px;color:var(--text-2);margin:8px 0 14px}

/* News / CMS */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.news-card{display:flex;gap:18px;background:var(--glass-bg-fallback);background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius-card);padding:16px;transition:transform var(--tr),border-color var(--tr),box-shadow var(--tr);backdrop-filter:blur(18px) saturate(120%);-webkit-backdrop-filter:blur(18px) saturate(120%)}
.news-card:hover{transform:translateY(-4px);border-color:var(--glass-border-hi);box-shadow:var(--shadow-card)}
.news-card .thumb{flex:0 0 168px;border-radius:14px;overflow:hidden}
.news-card .thumb img{width:100%;height:100%;aspect-ratio:16/9;object-fit:cover}
.news-body{display:flex;flex-direction:column;gap:8px;min-width:0}
.news-body h3{font-size:18px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-body p{font-size:14px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;font-size:13px;color:var(--text-3)}
.news-foot .arrow{color:var(--accent);transition:transform var(--tr)}
.news-card:hover .arrow{transform:translateX(5px)}
.empty-state{border:1px dashed var(--glass-border);border-radius:var(--radius-card);padding:46px 24px;text-align:center;color:var(--text-2);background:rgba(255,255,255,.02)}
.empty-state .icon{width:48px;height:48px;border-radius:14px;border:1px solid var(--glass-border);display:grid;place-items:center;margin:0 auto 14px;color:var(--text-3);font-size:20px}

/* FAQ */
.faq-list{max-width:920px;margin:0 auto}
.faq-item{background:var(--layer-1);border:1px solid var(--glass-border);border-radius:var(--radius-card);margin-bottom:14px;overflow:hidden;transition:border-color var(--tr)}
.faq-item[open]{border-color:rgba(36,227,180,.3)}
.faq-item summary{list-style:none;cursor:pointer;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 22px;font-weight:700;font-size:16px;position:relative}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{content:'';position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:3px;background:var(--accent);opacity:0;transition:opacity var(--tr);box-shadow:0 0 10px rgba(36,227,180,.7)}
.faq-item[open] summary::before{opacity:1}
.faq-item summary .sign{color:var(--accent);font-size:20px;line-height:1;transition:transform var(--tr)}
.faq-item[open] summary .sign{transform:rotate(135deg)}
.faq-body{padding:0 22px 22px;max-width:720px;color:var(--text-2);font-size:15px}

/* Download panel */
.download-panel{position:relative;border-radius:var(--radius-panel);border:1px solid var(--glass-border);background-image:url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center;overflow:hidden;padding:52px 44px}
.download-panel::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(5,7,14,.94),rgba(10,17,32,.88))}
.download-inner{position:relative;z-index:2;text-align:center}
.download-inner h2{font-size:clamp(24px,2.8vw,34px);margin-bottom:12px}
.download-inner > p{color:var(--text-2);max-width:640px;margin:0 auto 34px;font-size:15px}
.platform-row{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;max-width:900px;margin:0 auto 24px}
.platform-btn{display:flex;align-items:center;gap:14px;text-align:left;padding:16px 18px;border-radius:var(--radius-card);border:1px solid var(--glass-border);background:rgba(10,17,32,.7);transition:transform var(--tr),border-color var(--tr),box-shadow var(--tr)}
.platform-btn:hover{transform:translateY(-4px);border-color:var(--glass-border-hi)}
.platform-btn--primary{border-color:rgba(36,227,180,.5);box-shadow:var(--shadow-glow)}
.platform-btn .p-name{font-weight:700;font-size:16px}
.platform-btn .p-ver{font-size:12px;color:var(--text-3);letter-spacing:.04em}
.download-note{font-size:13px;color:var(--text-3)}

/* Footer */
.site-footer{border-top:1px solid rgba(140,180,255,.12);background:#04060C;padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px}
.footer-brand p{color:var(--text-2);font-size:14px;margin-top:14px;max-width:300px}
.footer-col h4{font-size:14px;color:var(--text);margin-bottom:16px;letter-spacing:.02em}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:var(--text-2);transition:color var(--tr)}
.footer-col a:hover{color:var(--accent)}
.qr-box{width:104px;height:104px;border-radius:14px;border:1px solid var(--glass-border);background:repeating-linear-gradient(45deg,rgba(140,180,255,.1) 0 6px,rgba(10,17,32,.9) 6px 12px);display:grid;place-items:center;font-size:12px;color:var(--text-3);text-align:center;line-height:1.5}
.footer-bottom{border-top:1px solid rgba(140,180,255,.1);padding:20px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--text-3)}

/* Responsive */
@media (max-width:1180px){
  .nav-links{display:none}
  .nav-toggle{display:flex}
  .hero-grid{gap:40px}
  .spec-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:1023px){
  :root{--sec-pad:72px}
  .hero{padding:64px 0 60px}
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero-visual{order:2}
  .news-grid{grid-template-columns:1fr}
}
@media (max-width:767px){
  :root{--sec-pad:56px}
  .container{padding:0 18px}
  .nav-actions .btn-outline{display:none}
  .hero h1{font-size:30px}
  .hero-sub{font-size:16px}
  .hero-actions .btn{width:100%}
  .metrics{gap:22px}
  .float-card--rating{left:6px;bottom:12px}
  .float-card--update{right:6px;top:-14px}
  .spec-grid{grid-template-columns:1fr}
  .review-wall{columns:1}
  .news-card{flex-direction:column}
  .news-card .thumb{flex:none}
  .platform-row{grid-template-columns:1fr}
  .download-panel{padding:38px 20px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:420px){
  .logo span.brand-text{font-size:15px}
  .btn{padding:12px 18px;font-size:14px}
  .slide-caption{left:14px;right:14px;bottom:12px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: article */
:root{
  --bg:#05070E;
  --bg-1:#0A1120;
  --bg-2:#101A2E;
  --glass:rgba(255,255,255,.05);
  --glass-fallback:#0F1930;
  --line:rgba(140,180,255,.14);
  --line-strong:rgba(140,180,255,.30);
  --primary:#2E6BFF;
  --accent:#24E3B4;
  --warm:#FF9E2C;
  --text:#EAF2FF;
  --text-2:#9AAECB;
  --text-3:#61748F;
  --ok:#3ECF8E;
  --warn:#FFB020;
  --err:#FF5C63;
  --r-card:18px;
  --r-panel:24px;
  --r-img:16px;
  --r-btn:12px;
  --shadow:0 18px 40px rgba(2,6,20,.55);
  --glow:0 0 0 1px rgba(36,227,180,.35),0 10px 30px rgba(36,227,180,.22);
  --ease:200ms ease-out;
  --container:1200px;
  --read:840px;
  --section-y:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:
    radial-gradient(1100px 620px at 82% -8%,rgba(46,107,255,.20),transparent 62%),
    radial-gradient(760px 460px at 6% 4%,rgba(36,227,180,.10),transparent 60%),
    var(--bg);
  color:var(--text);
  font-family:'HarmonyOS Sans SC','PingFang SC','Microsoft YaHei','Hiragino Sans GB',sans-serif;
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  letter-spacing:0;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5{font-weight:700;letter-spacing:-.4px;line-height:1.32;margin:0;color:var(--text)}
p{margin:0}
a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease),background var(--ease),opacity var(--ease)}
a:hover{color:var(--accent)}
img{max-width:100%;display:block;border-radius:var(--r-img);object-fit:cover}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
::selection{background:rgba(36,227,180,.28);color:#fff}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.2px;line-height:1;
  border:1px solid transparent;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease);
  white-space:nowrap;
}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-lg{padding:16px 32px;font-size:16px}
.btn-primary{
  background:linear-gradient(135deg,#24E3B4,#2E6BFF 92%);
  color:#04121A;font-weight:700;
  box-shadow:0 10px 26px rgba(36,227,180,.24);
}
.btn-primary:hover{background:linear-gradient(135deg,#3DF0C4,#3E7BFF 92%);transform:translateY(-2px);box-shadow:var(--glow);color:#04121A}
.btn-primary:active{transform:translateY(0)}
.btn-outline{
  background:transparent;border-color:rgba(140,180,255,.34);color:var(--text);
}
.btn-outline:hover{background:rgba(36,227,180,.08);border-color:var(--accent);color:var(--accent);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--accent);padding:10px 4px;font-weight:600}
.btn-ghost span{display:inline-block;transition:transform var(--ease)}
.btn-ghost:hover span{transform:translateX(5px)}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;pointer-events:none}
.btn.is-loading{opacity:.8;pointer-events:none}
.btn.is-loading .btn-label::after{content:"···";letter-spacing:2px}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  font-size:12px;letter-spacing:.06em;font-weight:600;
  background:rgba(36,227,180,.12);color:var(--accent);
  border:1px solid rgba(36,227,180,.28);
}
.badge-warm{background:rgba(255,158,44,.12);color:var(--warm);border-color:rgba(255,158,44,.3)}
.badge-blue{background:rgba(46,107,255,.14);color:#8FB3FF;border-color:rgba(46,107,255,.34)}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(5,7,14,.72);
  backdrop-filter:blur(18px) saturate(120%);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
  border-bottom:1px solid transparent;
  transition:background var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.site-header.is-scrolled{
  background:rgba(6,10,20,.9);
  border-bottom-color:var(--line);
  box-shadow:0 12px 34px rgba(2,6,20,.5);
}
.nav-inner{display:flex;align-items:center;gap:22px;min-height:72px}
.logo{display:inline-flex;align-items:center;gap:11px;flex-shrink:0}
.logo-mark{
  width:34px;height:34px;border-radius:11px;flex-shrink:0;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,#24E3B4,#2E6BFF);
  box-shadow:0 8px 20px rgba(36,227,180,.24);
}
.logo-mark span{width:12px;height:12px;border-radius:4px;background:#05070E;transform:rotate(45deg)}
.brand-text{font-size:16px;font-weight:700;letter-spacing:-.3px;color:var(--text)}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  position:relative;padding:9px 13px;border-radius:10px;
  font-size:14.5px;color:var(--text-2);
  transition:color var(--ease),background var(--ease);
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.04)}
.nav-link.is-active{color:#fff}
.nav-link.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:1px;height:2px;
  border-radius:2px;background:var(--accent);
  box-shadow:0 0 10px rgba(36,227,180,.85);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:rgba(255,255,255,.03);
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:17px;height:2px;border-radius:2px;background:var(--text);transition:transform var(--ease),opacity var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- 文章页头 ---------- */
.article-hero{
  position:relative;
  padding:56px 0 40px;
  background-image:linear-gradient(180deg,rgba(5,7,14,.86),rgba(5,7,14,.96)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.article-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(140,180,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(140,180,255,.045) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 50% 0%,#000 10%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 0%,#000 10%,transparent 78%);
}
.article-hero .container{position:relative;z-index:2}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--text-3);margin-bottom:20px}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{color:var(--text-3);opacity:.6}
.bc-cur{color:var(--text-2);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-hero h1{
  font-size:clamp(28px,3.9vw,44px);
  line-height:1.26;margin:16px 0 18px;max-width:900px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:14px;color:var(--text-2)}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--text-3)}
.article-meta .src{color:var(--text-3)}

/* ---------- 封面 ---------- */
.article-cover{margin:0;padding:36px 0 0}
.article-cover figure{margin:0;position:relative;border-radius:var(--r-panel);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
.article-cover figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:26px 24px 16px;
  background:linear-gradient(180deg,transparent,rgba(5,7,14,.88));
  font-size:13px;color:var(--text-2);
}

/* ---------- 布局 ---------- */
.section{padding:var(--section-y) 0}
.section-tight{padding:56px 0 0}
.section-head{margin-bottom:36px;max-width:760px}
.section-head h2{font-size:clamp(24px,3vw,34px);margin-bottom:12px}
.section-head p{color:var(--text-2);font-size:15.5px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;color:var(--accent);font-weight:700;
  text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--accent)}

.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 312px;gap:44px;align-items:start}

/* ---------- 正文 ---------- */
.article-body{
  max-width:var(--read);
  font-size:16.5px;line-height:1.92;color:#D7E3F5;
}
.article-body > * + *{margin-top:1.15em}
.article-body p{margin:0 0 1.15em}
.article-body h2{
  position:relative;padding-left:18px;
  font-size:clamp(22px,2.6vw,28px);
  margin:2.1em 0 .7em;color:#fff;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.26em;bottom:.26em;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--accent),var(--primary));
  box-shadow:0 0 12px rgba(36,227,180,.5);
}
.article-body h3{font-size:20px;margin:1.7em 0 .55em;color:#F2F7FF}
.article-body h4{font-size:17px;margin:1.4em 0 .5em;color:var(--text-2)}
.article-body ul,.article-body ol{margin:0 0 1.15em;padding-left:2px}
.article-body ul li,.article-body ol li{position:relative;padding-left:22px;margin-bottom:.62em}
.article-body ul li::before{
  content:"";position:absolute;left:4px;top:.72em;width:6px;height:6px;border-radius:2px;
  background:var(--accent);transform:rotate(45deg);
}
.article-body ol{counter-reset:item}
.article-body ol li{counter-increment:item}
.article-body ol li::before{
  content:counter(item);
  position:absolute;left:0;top:.28em;
  width:16px;height:16px;border-radius:5px;
  display:flex;align-items:center;justify-content:center;
  font-size:10px;font-weight:700;color:#04121A;
  background:linear-gradient(140deg,var(--accent),#38B8FF);
  line-height:1;
}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;
  background:rgba(255,255,255,.04);
  border-left:3px solid var(--accent);
  border-radius:0 var(--r-btn) var(--r-btn) 0;
  color:var(--text-2);font-size:15.5px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body a{
  color:var(--accent);
  border-bottom:1px solid rgba(36,227,180,.45);
  text-decoration:none;
}
.article-body a:hover{color:#5CFFD6;border-bottom-color:#5CFFD6}
.article-body img{width:100%;border-radius:var(--r-img);margin:1.6em 0 .7em;border:1px solid var(--line)}
.article-body figure{margin:1.6em 0}
.article-body figcaption{text-align:center;font-size:13px;color:var(--text-3);margin-top:8px}
.article-body code{
  font-family:'Sora',ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.9em;padding:2px 7px;border-radius:6px;
  background:rgba(46,107,255,.14);color:#9DC0FF;
}
.article-body pre{
  margin:1.6em 0;padding:20px 22px;overflow-x:auto;
  background:rgba(255,255,255,.045);
  border:1px solid var(--line);border-radius:var(--r-card);
  font-family:'Sora',ui-monospace,Menlo,Consolas,monospace;
  font-size:14px;line-height:1.7;color:#C7DBFF;
}
.article-body pre code{background:none;padding:0;color:inherit;font-size:inherit}
.article-body table{
  width:100%;border-collapse:separate;border-spacing:0;
  margin:1.7em 0;font-size:14.5px;
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
}
.article-body th,.article-body td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--line)}
.article-body th{background:rgba(46,107,255,.12);color:#DCE9FF;font-weight:600;font-size:13.5px}
.article-body tr:last-child td{border-bottom:0}
.article-body td{color:var(--text-2)}
.article-body hr{border:0;height:1px;background:var(--line);margin:2.4em 0}
.article-body strong{color:#fff;font-weight:700}

/* ---------- 空态 ---------- */
.empty-state{
  padding:56px 28px;text-align:center;
  background:rgba(255,255,255,.04);
  border:1px dashed var(--line-strong);border-radius:var(--r-panel);
}
.empty-state svg{width:44px;height:44px;margin:0 auto 16px;display:block;stroke:var(--text-3)}
.empty-state h2{font-size:20px;margin-bottom:10px}
.empty-state p{color:var(--text-2);font-size:15px;margin-bottom:22px}

/* ---------- 侧栏 ---------- */
.article-aside{position:sticky;top:96px;display:flex;flex-direction:column;gap:18px}
.aside-card{
  background:var(--glass-fallback);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:20px;
  backdrop-filter:blur(18px) saturate(120%);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
  box-shadow:var(--shadow);
}
.aside-card h3{
  font-size:14px;letter-spacing:.08em;color:var(--text-2);
  font-weight:700;margin-bottom:14px;text-transform:uppercase;
}
.toc-list li{margin-bottom:2px}
.toc-list a{
  display:block;padding:8px 10px;border-radius:9px;
  font-size:14px;color:var(--text-2);line-height:1.5;
  border-left:2px solid transparent;
}
.toc-list a:hover{background:rgba(255,255,255,.05);color:var(--text)}
.toc-list a.is-current{
  color:var(--accent);border-left-color:var(--accent);
  background:rgba(36,227,180,.08);
}
.dl-card{background:linear-gradient(150deg,rgba(36,227,180,.10),rgba(46,107,255,.12))}
.dl-card h3{color:var(--accent);text-transform:none;letter-spacing:0;font-size:16px}
.dl-card p{font-size:13.5px;color:var(--text-2);margin-bottom:16px;line-height:1.72}
.dl-card .btn{width:100%}
.dl-card .ver{margin-top:12px;font-size:12px;color:var(--text-3);text-align:center}
.toc-mobile{display:none;margin-bottom:26px}

/* ---------- 标签行 ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:40px;padding-top:26px;border-top:1px solid var(--line)}
.tag-row .label{font-size:13px;color:var(--text-3);margin-right:2px}
.tag{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;
  font-size:12.5px;color:var(--text-2);
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  transition:all var(--ease);
}
.tag:hover{color:var(--accent);border-color:rgba(36,227,180,.5);background:rgba(36,227,180,.08)}

/* ---------- 上一篇 / 下一篇 ---------- */
.pn-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:32px}
.pn-card{
  display:flex;flex-direction:column;gap:10px;
  padding:22px;border-radius:var(--r-card);
  background:rgba(255,255,255,.045);border:1px solid var(--line);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.pn-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow)}
.pn-card .pn-kind{font-size:12px;letter-spacing:.1em;color:var(--accent);font-weight:700}
.pn-card h4{font-size:16.5px;line-height:1.5;color:var(--text)}
.pn-card p{font-size:13.5px;color:var(--text-3);line-height:1.7}

/* ---------- 相关推荐 ---------- */
.reco-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.reco-card{
  display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--r-card);border:1px solid var(--line);
  background:rgba(255,255,255,.045);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.reco-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow)}
.reco-card figure{margin:0;position:relative;overflow:hidden}
.reco-card img{width:100%;aspect-ratio:16/9;border-radius:0;transition:transform 320ms ease-out}
.reco-card:hover img{transform:scale(1.04)}
.reco-card .reco-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.reco-card h3{font-size:16.5px;line-height:1.5}
.reco-card p{font-size:13.5px;color:var(--text-2);line-height:1.72;flex:1}
.reco-card .more{font-size:13px;color:var(--accent);font-weight:600}

/* ---------- 下载 CTA ---------- */
.cta-panel{
  position:relative;overflow:hidden;
  border-radius:var(--r-panel);
  border:1px solid var(--line);
  background:linear-gradient(150deg,rgba(46,107,255,.14),rgba(36,227,180,.08) 68%,rgba(255,255,255,.03));
  padding:48px 44px;
  backdrop-filter:blur(18px) saturate(120%);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
  box-shadow:var(--shadow);
}
.cta-panel::after{
  content:"";position:absolute;width:420px;height:420px;right:-140px;top:-180px;border-radius:50%;
  background:radial-gradient(circle,rgba(36,227,180,.22),transparent 68%);
  pointer-events:none;
}
.cta-head{position:relative;z-index:2;max-width:620px;margin-bottom:30px}
.cta-head h2{font-size:clamp(24px,3vw,32px);margin-bottom:12px}
.cta-head p{color:var(--text-2);font-size:15.5px}
.dl-grid{position:relative;z-index:2;display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.dl-item{
  display:flex;align-items:center;gap:14px;
  padding:18px 20px;border-radius:var(--r-card);
  border:1px solid var(--line);background:rgba(5,7,14,.5);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.dl-item:hover{transform:translateY(-3px);border-color:var(--line-strong)}
.dl-item.is-main{border-color:rgba(36,227,180,.5);box-shadow:var(--glow)}
.dl-icon{
  width:44px;height:44px;border-radius:14px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  background:rgba(46,107,255,.18);border:1px solid rgba(140,180,255,.24);
  font-size:18px;
}
.dl-item.is-main .dl-icon{background:rgba(36,227,180,.16);border-color:rgba(36,227,180,.4)}
.dl-text{display:flex;flex-direction:column;gap:3px;min-width:0}
.dl-text strong{font-size:15px;font-weight:600;color:var(--text)}
.dl-text span{font-size:12.5px;color:var(--text-3)}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:var(--section-y);
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(10,17,32,.5),rgba(5,7,14,.96));
  padding:64px 0 0;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:48px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--text-2);max-width:320px;line-height:1.8}
.footer-col h4{font-size:14px;color:var(--text);margin-bottom:16px;letter-spacing:.04em}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{font-size:14px;color:var(--text-2)}
.footer-col ul li a:hover{color:var(--accent)}
.qr-box{
  width:112px;height:112px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12.5px;color:var(--text-3);line-height:1.6;
  background:
    repeating-linear-gradient(45deg,rgba(140,180,255,.08) 0 6px,transparent 6px 12px),
    rgba(255,255,255,.04);
  border:1px dashed var(--line-strong);
}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  padding:20px 0 28px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .article-layout{grid-template-columns:minmax(0,1fr) 286px;gap:32px}
  .article-body{max-width:none}
}
@media (max-width:1024px){
  :root{--section-y:72px}
  .article-aside{display:none}
  .toc-mobile{
    display:block;border:1px solid var(--line);border-radius:var(--r-card);
    background:rgba(255,255,255,.045);padding:4px 18px;
  }
  .toc-mobile summary{
    padding:14px 0;font-size:14.5px;font-weight:600;color:var(--text);
    cursor:pointer;list-style:none;
  }
  .toc-mobile summary::-webkit-details-marker{display:none}
  .toc-mobile summary::before{content:"≡ ";color:var(--accent);font-weight:700}
  .toc-mobile ol{padding-bottom:14px}
  .toc-mobile li a{display:block;padding:7px 0;font-size:14px;color:var(--text-2)}
  .nav-links{
    position:fixed;top:72px;right:0;bottom:0;width:min(320px,84vw);
    flex-direction:column;align-items:stretch;gap:4px;
    padding:22px 20px;margin-left:0;
    background:rgba(8,13,25,.98);
    border-left:1px solid var(--line);
    transform:translateX(105%);
    transition:transform 260ms ease-out;
    overflow-y:auto;
  }
  .nav-links.is-open{transform:translateX(0)}
  .nav-link{padding:15px 14px;font-size:15.5px;border-radius:12px;min-height:48px;display:flex;align-items:center}
  .nav-link.is-active::after{display:none}
  .nav-link.is-active{background:rgba(36,227,180,.1);color:var(--accent)}
  .nav-toggle{display:flex}
  .nav-actions .btn-outline{display:none}
  .nav-actions{margin-left:0}
  .nav-inner{gap:12px}
  .logo{margin-right:0}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px}
}
@media (max-width:1023px){
  .reco-grid{grid-template-columns:repeat(2,1fr)}
  .dl-grid{grid-template-columns:1fr}
}
@media (max-width:768px){
  :root{--section-y:56px}
  .container{padding:0 18px}
  body{font-size:15.5px}
  .nav-actions .btn-primary{display:none}
  .article-hero{padding:36px 0 30px}
  .article-meta{gap:10px;font-size:13.5px}
  .bc-cur{display:none}
  .article-body{font-size:16px;line-height:1.88}
  .pn-grid{grid-template-columns:1fr}
  .reco-grid{grid-template-columns:1fr}
  .cta-panel{padding:32px 22px;border-radius:var(--r-card)}
  .cta-head{margin-bottom:24px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:34px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .dl-item{padding:16px}
  .article-cover{padding-top:24px}
}
@media (max-width:520px){
  .container{padding:0 15px}
  .nav-inner{min-height:64px}
  .nav-links{top:64px}
  .brand-text{font-size:15px}
  .article-hero h1{font-size:26px}
  .article-body h2{font-size:21px;padding-left:14px}
  .article-body h3{font-size:18px}
  .cta-panel{padding:26px 18px}
  .btn{width:100%}
  .nav-actions .btn{width:auto}
  .btn-ghost{width:auto}
  .aside-card{padding:16px}
  .tag-row{margin-top:30px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}

/* roulang page: category1 */
:root{
  --bg:#05070E;
  --bg-2:#0A1120;
  --bg-3:#101A2E;
  --panel:#0F1930;
  --brand:#2E6BFF;
  --accent:#24E3B4;
  --amber:#FF9E2C;
  --text:#EAF2FF;
  --text-2:#9AAECB;
  --text-3:#61748F;
  --ok:#3ECF8E;
  --warn:#FFB020;
  --err:#FF5C63;
  --line:rgba(140,180,255,.14);
  --line-strong:rgba(140,180,255,.30);
  --glass:rgba(255,255,255,.05);
  --radius-card:18px;
  --radius-panel:24px;
  --radius-img:16px;
  --radius-btn:12px;
  --shadow-card:0 18px 40px rgba(2,6,20,.55);
  --shadow-glow:0 0 0 1px rgba(36,227,180,.35),0 10px 30px rgba(36,227,180,.22);
  --space-section:96px;
  --ease:180ms ease-out;
  --font-cn:'HarmonyOS Sans SC','PingFang SC','Microsoft YaHei',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --font-num:'Sora','Inter',system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p,dl,dd,dt,figure{margin:0;}
h1,h2,h3,h4{font-weight:800;letter-spacing:-.4px;line-height:1.28;}
::selection{background:rgba(36,227,180,.28);color:#fff;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:var(--space-section) 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.06em;color:var(--accent);
  background:rgba(36,227,180,.10);border:1px solid rgba(36,227,180,.28);
  padding:5px 12px;border-radius:999px;margin-bottom:16px;font-weight:600;
}
.section-head h2{font-size:clamp(24px,3vw,34px);margin-bottom:14px;}
.section-head p{color:var(--text-2);font-size:15px;margin:0;}
.muted{color:var(--text-2);}
.small{font-size:14px;}
.num{font-family:var(--font-num);letter-spacing:-.4px;}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(5,7,14,.82);
  border-bottom:1px solid transparent;
  transition:background var(--ease),border-color var(--ease),backdrop-filter var(--ease);
}
.site-header.is-scrolled{
  background:rgba(8,13,26,.78);
  border-bottom-color:var(--line);
  backdrop-filter:blur(18px) saturate(120%);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
}
.nav-inner{
  display:flex;align-items:center;gap:24px;
  height:72px;
}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:30px;height:30px;border-radius:9px;
  background:linear-gradient(140deg,var(--brand),#0d2f8f);
  border:1px solid rgba(140,180,255,.28);
  display:grid;place-items:center;position:relative;flex-shrink:0;
}
.logo-mark span{
  width:11px;height:11px;border-radius:4px;
  background:var(--accent);box-shadow:0 0 12px rgba(36,227,180,.8);
}
.brand-text{
  font-size:17px;font-weight:800;letter-spacing:-.3px;white-space:nowrap;
  background:linear-gradient(90deg,#EAF2FF 40%,#9CC4FF 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:12px;}
.nav-link{
  position:relative;
  padding:9px 13px;border-radius:10px;
  font-size:15px;color:var(--text-2);
  transition:color var(--ease),background var(--ease);
  white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:rgba(140,180,255,.07);}
.nav-link.is-active{color:var(--text);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;border-radius:2px;
  background:var(--accent);box-shadow:0 0 10px rgba(36,227,180,.85);
}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:11px;
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  cursor:pointer;padding:0;
}
.nav-toggle span{
  display:block;width:18px;height:2px;margin:4px auto;border-radius:2px;
  background:var(--text-2);transition:var(--ease);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease);
  white-space:nowrap;
}
.btn i{font-size:14px;}
.btn-primary{
  background:linear-gradient(135deg,var(--accent),#12b98f);
  color:#04140F;
  box-shadow:0 8px 24px rgba(36,227,180,.22);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-glow);}
.btn-outline{
  background:transparent;color:var(--accent);
  border-color:rgba(36,227,180,.42);
}
.btn-outline:hover{background:rgba(36,227,180,.08);transform:translateY(-2px);}
.btn-ghost{
  background:transparent;color:var(--text-2);padding:8px 4px;
}
.btn-ghost:hover{color:var(--accent);}
.btn-ghost i{transition:transform var(--ease);}
.btn-ghost:hover i{transform:translateX(4px);}
.btn-sm{padding:10px 16px;font-size:14px;}
.btn-block{width:100%;}
.btn:disabled,.btn.is-disabled{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none;}

/* ---------- Badge / Tag ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:999px;
  font-size:12px;letter-spacing:.06em;font-weight:600;
  background:rgba(36,227,180,.10);color:var(--accent);
  border:1px solid rgba(36,227,180,.26);
}
.badge-amber{background:rgba(255,158,44,.10);color:var(--amber);border-color:rgba(255,158,44,.28);}
.badge-blue{background:rgba(46,107,255,.12);color:#8FB4FF;border-color:rgba(46,107,255,.30);}
.badge-plain{background:rgba(140,180,255,.07);color:var(--text-2);border-color:var(--line);}

/* ---------- Card / Panel ---------- */
.card{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  padding:26px;
  backdrop-filter:blur(18px) saturate(120%);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){
  .card,.glass{background:var(--panel);}
}
.card:hover{transform:translateY(-4px);border-color:var(--line-strong);}
.card h3{font-size:19px;margin-bottom:10px;}
.card p{font-size:14px;color:var(--text-2);margin:0;}
.icon-round{
  width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
  background:rgba(46,107,255,.14);border:1px solid rgba(46,107,255,.28);
  color:#9CC4FF;font-size:17px;margin-bottom:16px;
}
.icon-round.is-accent{background:rgba(36,227,180,.12);border-color:rgba(36,227,180,.30);color:var(--accent);}
.glass{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-panel);
  backdrop-filter:blur(18px) saturate(120%);-webkit-backdrop-filter:blur(18px) saturate(120%);
}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  padding:76px 0 66px;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(720px 320px at 12% 0%,rgba(46,107,255,.26),transparent 68%),
    radial-gradient(560px 300px at 88% 20%,rgba(36,227,180,.16),transparent 70%),
    linear-gradient(180deg,rgba(5,7,14,.78) 0%,rgba(5,7,14,.93) 62%,var(--bg) 100%);
}
.page-hero::after{
  content:"";position:absolute;inset:0;opacity:.28;
  background-image:linear-gradient(rgba(140,180,255,.08) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(140,180,255,.08) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(70% 60% at 50% 30%,#000,transparent 80%);
  -webkit-mask-image:radial-gradient(70% 60% at 50% 30%,#000,transparent 80%);
}
.page-hero .container{position:relative;z-index:2;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:22px;flex-wrap:wrap;}
.crumb a{color:var(--text-2);transition:color var(--ease);}
.crumb a:hover{color:var(--accent);}
.crumb i{font-size:10px;color:var(--text-3);}
.page-hero h1{
  font-size:clamp(28px,4.2vw,48px);
  max-width:900px;margin-bottom:18px;
}
.page-hero h1 em{font-style:normal;color:var(--accent);}
.page-hero .lede{
  max-width:720px;font-size:16px;color:var(--text-2);margin-bottom:28px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;
  margin-top:38px;max-width:720px;
}
.hero-stat{
  background:rgba(10,17,32,.72);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:16px 18px;
}
.hero-stat dt{font-size:12px;letter-spacing:.06em;color:var(--text-3);margin-bottom:6px;}
.hero-stat dd{margin:0;font-size:22px;font-weight:800;font-family:var(--font-num);color:var(--text);}
.hero-stat dd span{font-size:13px;font-weight:600;color:var(--text-2);margin-left:4px;font-family:var(--font-cn);}

/* ---------- Split rows ---------- */
.split{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
}
.split + .split{margin-top:80px;}
.split.is-reverse .split-media{order:-1;}
.split-media{
  border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow-card);position:relative;
}
.split-media img{width:100%;aspect-ratio:16/11;object-fit:cover;}
.split-media .media-tag{
  position:absolute;left:16px;top:16px;
}
.split-body h3{font-size:23px;margin-bottom:14px;}
.split-body p{color:var(--text-2);font-size:15px;margin-bottom:16px;}
.check-list li{
  display:flex;gap:11px;align-items:flex-start;
  font-size:15px;color:var(--text-2);padding:7px 0;
}
.check-list li i{color:var(--accent);font-size:13px;margin-top:7px;flex-shrink:0;}
.check-list li b{color:var(--text);font-weight:600;}

/* ---------- Timeline ---------- */
.timeline{position:relative;padding-left:34px;margin-top:12px;}
.timeline::before{
  content:"";position:absolute;left:8px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(180deg,rgba(36,227,180,.7),rgba(46,107,255,.35),rgba(140,180,255,.06));
  border-radius:2px;
}
.tl-item{position:relative;padding:0 0 34px 0;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:-34px;top:8px;width:18px;height:18px;border-radius:50%;
  background:var(--bg-2);border:2px solid var(--accent);
  box-shadow:0 0 0 4px rgba(36,227,180,.10),0 0 14px rgba(36,227,180,.65);
}
.tl-item.is-old::before{border-color:var(--brand);box-shadow:0 0 0 4px rgba(46,107,255,.10);}
.tl-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:8px;}
.tl-version{font-family:var(--font-num);font-size:19px;font-weight:800;color:var(--text);}
.tl-date{font-size:13px;color:var(--text-3);font-family:var(--font-num);}
.tl-body p{font-size:14px;color:var(--text-2);margin:0 0 10px;}
.tl-body ul{display:flex;flex-wrap:wrap;gap:8px;}

/* ---------- Download panel ---------- */
.download-panel{
  padding:44px;
  border-radius:var(--radius-panel);
}
.download-panel h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:12px;}
.download-panel > p{color:var(--text-2);font-size:15px;max-width:640px;margin-bottom:32px;}
.dl-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;}
.dl-btn{
  display:flex;align-items:center;gap:14px;
  padding:18px;border-radius:var(--radius-card);
  border:1px solid var(--line);background:rgba(10,17,32,.66);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.dl-btn:hover{transform:translateY(-4px);border-color:var(--line-strong);}
.dl-btn .dl-icon{
  width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
  background:rgba(46,107,255,.14);border:1px solid rgba(46,107,255,.28);
  color:#9CC4FF;font-size:18px;flex-shrink:0;
}
.dl-btn .dl-text strong{display:block;font-size:16px;font-weight:700;}
.dl-btn .dl-text span{font-size:13px;color:var(--text-3);font-family:var(--font-num);}
.dl-btn.is-primary{
  border-color:rgba(36,227,180,.42);
  background:rgba(36,227,180,.07);
  box-shadow:0 0 0 1px rgba(36,227,180,.18),0 12px 30px rgba(36,227,180,.14);
}
.dl-btn.is-primary .dl-icon{background:rgba(36,227,180,.16);border-color:rgba(36,227,180,.36);color:var(--accent);}
.dl-note{
  margin-top:26px;padding-top:20px;border-top:1px dashed rgba(140,180,255,.18);
  display:flex;flex-wrap:wrap;gap:8px 26px;font-size:13px;color:var(--text-3);
}
.dl-note span b{color:var(--text-2);font-weight:600;font-family:var(--font-num);}

/* ---------- Spec cards ---------- */
.spec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.spec-card dl{margin-top:16px;display:grid;gap:10px;}
.spec-card .spec-row{
  display:flex;justify-content:space-between;gap:14px;
  padding-bottom:10px;border-bottom:1px dashed rgba(140,180,255,.14);
  font-size:14px;
}
.spec-card .spec-row:last-child{border-bottom:0;padding-bottom:0;}
.spec-card dt{color:var(--text-3);}
.spec-card dd{margin:0;color:var(--text);font-weight:600;font-family:var(--font-num);}
.spec-card.is-highlight{border-color:rgba(36,227,180,.42);box-shadow:0 0 0 1px rgba(36,227,180,.18),0 14px 34px rgba(36,227,180,.14);}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:860px;}
.faq-item{
  border:1px solid var(--line);border-radius:var(--radius-card);
  background:rgba(10,17,32,.6);overflow:hidden;
  transition:border-color var(--ease),background var(--ease);
}
.faq-item:hover{border-color:var(--line-strong);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:0 22px;min-height:56px;
  font-size:16px;font-weight:600;color:var(--text);
  position:relative;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;
  background:var(--accent);box-shadow:0 0 10px rgba(36,227,180,.6);
  opacity:0;transition:opacity var(--ease);
}
.faq-item[open] summary::before{opacity:1;}
.faq-item summary .faq-ico{
  width:26px;height:26px;border-radius:8px;flex-shrink:0;
  display:grid;place-items:center;
  border:1px solid rgba(140,180,255,.24);color:var(--text-2);font-size:11px;
  transition:transform var(--ease),color var(--ease),border-color var(--ease);
}
.faq-item[open] summary .faq-ico{transform:rotate(90deg);color:var(--accent);border-color:rgba(36,227,180,.4);}
.faq-answer{padding:0 22px 22px;max-width:720px;color:var(--text-2);font-size:15px;}
.faq-answer p{margin:0;}

/* ---------- CTA strip ---------- */
.cta-strip{
  padding:40px 44px;border-radius:var(--radius-panel);
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  background:linear-gradient(120deg,rgba(46,107,255,.16),rgba(36,227,180,.08)),var(--panel);
  border:1px solid var(--line);
}
.cta-strip h2{font-size:clamp(20px,2.4vw,28px);margin-bottom:8px;}
.cta-strip p{color:var(--text-2);font-size:15px;margin:0;max-width:560px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- Footer ---------- */
.site-footer{
  border-top:1px solid var(--line);
  background:var(--bg-2);
  padding:66px 0 0;
  margin-top:20px;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:44px;
}
.footer-brand p{color:var(--text-2);font-size:14px;margin-top:16px;max-width:320px;}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:18px;color:var(--text);letter-spacing:0;}
.footer-col ul{display:grid;gap:11px;}
.footer-col a{font-size:14px;color:var(--text-2);transition:color var(--ease);}
.footer-col a:hover{color:var(--accent);}
.qr-box{
  width:112px;height:112px;border-radius:14px;
  border:1px dashed rgba(140,180,255,.28);
  display:grid;place-items:center;text-align:center;
  font-size:12px;color:var(--text-3);line-height:1.6;
  background:rgba(255,255,255,.03);
}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:22px 0;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}

/* ---------- Reveal animation ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease-out,transform .6s ease-out;}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  :root{--space-section:72px;}
  .nav-links{display:none;}
  .nav-toggle{display:block;}
  .split{gap:36px;}
  .spec-grid,.dl-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .nav-mobile-open .nav-links{
    display:flex;flex-direction:column;align-items:stretch;gap:4px;
    position:absolute;left:16px;right:16px;top:76px;
    background:rgba(9,14,28,.96);
    border:1px solid var(--line);border-radius:18px;
    padding:16px;margin:0;
    backdrop-filter:blur(18px) saturate(120%);
    -webkit-backdrop-filter:blur(18px) saturate(120%);
    box-shadow:var(--shadow-card);
  }
  .nav-mobile-open .nav-link{padding:14px 16px;font-size:16px;min-height:48px;display:flex;align-items:center;}
  .nav-mobile-open .nav-link.is-active::after{display:none;}
  .nav-mobile-open .nav-link.is-active{background:rgba(36,227,180,.10);color:var(--accent);}
  .site-header{position:sticky;}
}
@media (max-width:820px){
  .split{grid-template-columns:1fr;}
  .split.is-reverse .split-media{order:0;}
  .split + .split{margin-top:56px;}
  .cta-strip{padding:32px 26px;flex-direction:column;align-items:flex-start;}
}
@media (max-width:768px){
  :root{--space-section:56px;}
  .container{padding:0 18px;}
  .nav-inner{height:64px;}
  .brand-text{font-size:15px;}
  .nav-actions .btn-outline{display:none;}
  .page-hero{padding:56px 0 48px;}
  .page-hero h1{font-size:30px;}
  .hero-stats{grid-template-columns:1fr;gap:10px;margin-top:28px;}
  .spec-grid,.dl-grid{grid-template-columns:1fr;}
  .timeline{padding-left:28px;}
  .tl-item::before{left:-28px;}
  .download-panel{padding:28px 20px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .hero-cta .btn{width:100%;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
}
@media (max-width:420px){
  .container{padding:0 14px;}
  .page-hero h1{font-size:26px;}
  .card{padding:20px;}
  .faq-item summary{padding:0 16px;font-size:15px;}
  .faq-answer{padding:0 16px 18px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category2 */
:root{
  --bg:#05070E;
  --bg-2:#0A1120;
  --bg-3:#101A2E;
  --glass:rgba(255,255,255,.05);
  --glass-solid:#0F1930;
  --line:rgba(140,180,255,.14);
  --line-strong:rgba(140,180,255,.3);
  --primary:#2E6BFF;
  --accent:#24E3B4;
  --amber:#FF9E2C;
  --text:#EAF2FF;
  --text-2:#9AAECB;
  --text-3:#61748F;
  --ok:#3ECF8E;
  --warn:#FFB020;
  --err:#FF5C63;
  --r-sm:12px;
  --r:18px;
  --r-lg:24px;
  --shadow:0 18px 40px rgba(2,6,20,.55);
  --glow:0 0 0 1px rgba(36,227,180,.35),0 10px 30px rgba(36,227,180,.22);
  --t:200ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:'HarmonyOS Sans SC','PingFang SC','Microsoft YaHei','Inter',sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none;transition:color var(--t),opacity var(--t)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:750;letter-spacing:-.4px;line-height:1.3}
p{margin:0}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:8px}
::selection{background:rgba(36,227,180,.28);color:#fff}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section--deep{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(5,7,14,.84);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
  backdrop-filter:blur(18px) saturate(120%);
  border-bottom:1px solid var(--line);
  transition:background var(--t);
}
.site-header.is-scrolled{background:rgba(5,7,14,.94);box-shadow:0 10px 30px rgba(2,6,20,.6)}
.nav-inner{display:flex;align-items:center;gap:20px;height:72px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  box-shadow:0 0 0 1px rgba(36,227,180,.28),0 8px 20px rgba(46,107,255,.35);
}
.logo-mark span{display:block;width:12px;height:12px;border-radius:4px;background:#05070E}
.brand-text{font-size:17px;font-weight:800;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;padding:10px 14px;border-radius:10px;font-size:15px;color:var(--text-2);
  transition:color var(--t),background var(--t);
}
.nav-link:hover{color:var(--text);background:rgba(46,107,255,.14)}
.nav-link.is-active{color:#fff;font-weight:650}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:var(--accent);box-shadow:0 0 12px rgba(36,227,180,.85);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);padding:11px 10px}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--text);margin:4px 0;transition:transform var(--t),opacity var(--t)}
body.nav-open .nav-toggle span:nth-child(1){transform:translateY(6px) rotate(45deg)}
body.nav-open .nav-toggle span:nth-child(2){opacity:0}
body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 22px;border-radius:var(--r-sm);border:1px solid transparent;
  font-size:15px;font-weight:650;letter-spacing:0;cursor:pointer;
  transition:transform var(--t),box-shadow var(--t),background var(--t),border-color var(--t),color var(--t);
}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:10px}
.btn-primary{
  background:linear-gradient(135deg,#24E3B4,#2E6BFF);
  color:#04101A;
  box-shadow:0 8px 22px rgba(36,227,180,.22);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(36,227,180,.35),0 10px 30px rgba(36,227,180,.3)}
.btn-outline{border-color:rgba(140,180,255,.32);color:var(--text);background:transparent}
.btn-outline:hover{background:rgba(36,227,180,.08);border-color:rgba(36,227,180,.5);color:#fff}
.btn-ghost{color:var(--accent);padding:8px 4px;font-weight:600}
.btn-ghost span{display:inline-block;transition:transform var(--t)}
.btn-ghost:hover span{transform:translateX(4px)}
.btn-block{width:100%}
.btn[disabled]{opacity:.45;box-shadow:none;transform:none;pointer-events:none}
.btn.is-loading{pointer-events:none;opacity:.75}

/* ============ 通用组件 ============ */
.chip{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;
  font-size:12px;letter-spacing:.06em;line-height:1.7;
  background:rgba(36,227,180,.12);color:var(--accent);border:1px solid rgba(36,227,180,.24);
}
.chip-amber{background:rgba(255,158,44,.12);color:var(--amber);border-color:rgba(255,158,44,.26)}
.chip-blue{background:rgba(46,107,255,.14);color:#9CC0FF;border-color:rgba(46,107,255,.3)}
.card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
  backdrop-filter:blur(18px) saturate(120%);
  box-shadow:var(--shadow);
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
@supports not ((backdrop-filter:blur(4px)) or (-webkit-backdrop-filter:blur(4px))){
  .card,.glass-panel{background:var(--glass-solid)}
}
.card:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.card-pad{padding:26px}
.icon-dot{
  width:44px;height:44px;border-radius:50%;display:grid;place-items:center;
  background:rgba(46,107,255,.16);border:1px solid rgba(46,107,255,.3);
  color:#9CC0FF;font-weight:700;font-size:16px;flex-shrink:0;
}
.sect-head{max-width:760px;margin-bottom:44px}
.sect-head h2{font-size:clamp(24px,3vw,34px);margin:14px 0 14px}
.sect-head p{color:var(--text-2);font-size:15px}
.sect-head--center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.14em;color:var(--accent);text-transform:uppercase}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--accent);box-shadow:0 0 10px rgba(36,227,180,.7)}

/* ============ 分类页 Hero ============ */
.page-hero{
  position:relative;overflow:hidden;
  padding:76px 0 68px;
  background:#070B16 url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(620px 320px at 12% 18%, rgba(46,107,255,.38), transparent 66%),
    radial-gradient(520px 300px at 88% 82%, rgba(36,227,180,.16), transparent 70%),
    linear-gradient(180deg, rgba(5,7,14,.74), rgba(5,7,14,.96));
}
.page-hero::after{
  content:"";position:absolute;inset:0;opacity:.35;
  background-image:linear-gradient(rgba(140,180,255,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(140,180,255,.07) 1px,transparent 1px);
  background-size:56px 56px;
}
.page-hero .container{position:relative;z-index:2}
.crumb{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:22px}
.crumb a{color:var(--text-2)}
.crumb a:hover{color:var(--accent)}
.crumb span.sep{color:var(--text-3)}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center}
.page-hero h1{font-size:clamp(30px,4.4vw,50px);margin:16px 0 18px}
.hero-lead{font-size:17px;color:var(--text-2);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-metrics{display:flex;flex-wrap:wrap;gap:26px;margin-top:36px;padding-top:26px;border-top:1px dashed rgba(140,180,255,.2)}
.metric span{display:block;font-size:12px;letter-spacing:.08em;color:var(--text-3)}
.metric strong{display:block;font-size:20px;color:var(--text);font-weight:750;font-family:'Sora','Inter',sans-serif;letter-spacing:-.4px}

/* 登录面板浮层 */
.login-panel{padding:24px;border-radius:var(--r-lg);position:relative}
.panel-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.panel-top h3{font-size:17px}
.panel-field{background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-sm);padding:13px 16px;margin-bottom:12px}
.panel-field span{display:block;font-size:12px;color:var(--text-3);letter-spacing:.06em}
.panel-field b{font-weight:600;color:var(--text);font-size:15px;letter-spacing:.02em}
.panel-tabs{display:flex;gap:8px;margin-bottom:16px}
.panel-tabs span{flex:1;text-align:center;font-size:13px;padding:8px 6px;border-radius:10px;color:var(--text-2);border:1px solid var(--line)}
.panel-tabs span.on{color:#04101A;background:rgba(36,227,180,.85);border-color:transparent;font-weight:650}
.panel-note{font-size:13px;color:var(--text-3);margin-top:14px;line-height:1.7}
.float-card{
  position:absolute;right:-14px;bottom:-22px;
  padding:12px 16px;border-radius:14px;font-size:13px;
  background:rgba(15,25,48,.92);border:1px solid var(--line);
  box-shadow:var(--shadow);backdrop-filter:blur(10px);
}
.float-card b{display:block;color:var(--accent);font-family:'Sora','Inter',sans-serif;font-size:16px}

/* ============ 登录入口卡组 ============ */
.entry-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:24px}
.entry-card{position:relative;overflow:hidden;border-radius:var(--r);display:flex;flex-direction:column}
.entry-card .entry-media{position:relative;aspect-ratio:16/9;overflow:hidden;border-radius:var(--r) var(--r) 0 0}
.entry-card .entry-media img{width:100%;height:100%;object-fit:cover}
.entry-card .entry-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,7,14,.15),rgba(5,7,14,.88));
}
.entry-card .entry-body{padding:24px}
.entry-card h3{font-size:20px;margin:12px 0 10px}
.entry-card p{font-size:14px;color:var(--text-2)}
.entry-list{margin-top:16px;display:grid;gap:8px}
.entry-list li{font-size:13.5px;color:var(--text-2);padding-left:18px;position:relative}
.entry-list li::before{
  content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:50%;
  background:var(--accent);box-shadow:0 0 8px rgba(36,227,180,.8);
}
.entry-side{display:grid;gap:24px}
.entry-mini{padding:24px;border-radius:var(--r)}
.entry-mini h3{font-size:18px;margin:14px 0 8px}
.entry-mini p{font-size:14px;color:var(--text-2)}
.entry-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}

/* ============ 流程轴 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:step}
.step{position:relative;padding:28px 22px 24px;border-radius:var(--r)}
.step-num{
  width:42px;height:42px;border-radius:50%;display:grid;place-items:center;
  font-family:'Sora','Inter',sans-serif;font-weight:700;font-size:16px;
  background:rgba(36,227,180,.14);color:var(--accent);border:1px solid rgba(36,227,180,.4);
  box-shadow:0 0 0 6px rgba(36,227,180,.05);
}
.step h3{font-size:18px;margin:18px 0 8px}
.step p{font-size:14px;color:var(--text-2)}
.step::before{
  content:"";position:absolute;top:49px;right:-11px;width:22px;height:1px;
  background:linear-gradient(90deg,rgba(36,227,180,.6),rgba(36,227,180,.05));
}
.steps .step:last-child::before{display:none}

/* ============ 安全卡 ============ */
.safety-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.safety-card{padding:26px;border-radius:var(--r);display:flex;gap:18px;align-items:flex-start}
.safety-card h3{font-size:18px;margin-bottom:8px}
.safety-card p{font-size:14px;color:var(--text-2)}
.safety-card .icon-dot{background:rgba(255,158,44,.14);border-color:rgba(255,158,44,.3);color:var(--amber)}

/* ============ 异常自查行 ============ */
.check-list{display:grid;gap:14px}
.check-row{
  display:grid;grid-template-columns:240px 1fr;gap:20px;align-items:center;
  padding:20px 24px;border-radius:var(--r-sm);
  background:var(--bg-2);border:1px solid var(--line);
  transition:border-color var(--t),transform var(--t),background var(--t);
}
.check-row:hover{border-color:var(--line-strong);transform:translateX(4px);background:var(--bg-3)}
.check-row b{font-size:15.5px;display:flex;align-items:center;gap:10px}
.check-row b i{
  width:8px;height:8px;border-radius:50%;background:var(--primary);flex-shrink:0;
  box-shadow:0 0 10px rgba(46,107,255,.9);
}
.check-row p{font-size:14px;color:var(--text-2)}

/* ============ FAQ ============ */
.faq{display:grid;gap:12px;max-width:880px}
.faq details{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-sm);
  overflow:hidden;transition:border-color var(--t),background var(--t);
}
.faq details[open]{border-color:rgba(36,227,180,.34);background:var(--bg-3)}
.faq summary{
  position:relative;min-height:56px;display:flex;align-items:center;
  padding:16px 52px 16px 22px;cursor:pointer;font-size:16px;font-weight:600;list-style:none;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:0 3px 3px 0;
  background:var(--accent);opacity:.85;transition:opacity var(--t);
}
.faq summary::after{
  content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%) rotate(0deg);
  color:var(--accent);font-size:20px;line-height:1;transition:transform var(--t);
}
.faq details[open] summary::after{transform:translateY(-50%) rotate(135deg)}
.faq .faq-answer{
  padding:0 22px 20px;color:var(--text-2);font-size:14.5px;line-height:1.9;max-width:720px;
}

/* ============ 下载 CTA ============ */
.cta-panel{
  padding:44px;border-radius:var(--r-lg);
  background:
    radial-gradient(520px 260px at 12% 10%, rgba(46,107,255,.24), transparent 68%),
    rgba(255,255,255,.05);
  border:1px solid var(--line);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
  backdrop-filter:blur(18px) saturate(120%);
  box-shadow:var(--shadow);
}
.cta-head{display:flex;flex-wrap:wrap;gap:20px;align-items:flex-end;justify-content:space-between;margin-bottom:32px}
.cta-head h2{font-size:clamp(23px,3vw,32px);margin-bottom:10px}
.cta-head p{color:var(--text-2);font-size:15px;max-width:560px}
.dl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.dl-btn{
  display:flex;align-items:center;gap:14px;padding:20px;border-radius:var(--r);
  border:1px solid var(--line);background:var(--bg-2);
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.dl-btn:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.dl-btn.is-main{border-color:rgba(36,227,180,.5);box-shadow:var(--glow)}
.dl-btn b{display:block;font-size:16px;color:var(--text)}
.dl-btn small{display:block;font-size:12.5px;color:var(--text-3)}
.dl-foot{margin-top:24px;font-size:13px;color:var(--text-3);display:flex;flex-wrap:wrap;gap:18px}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-2);border-top:1px solid var(--line);padding:64px 0 0;margin-top:96px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding-bottom:44px}
.footer-brand p{color:var(--text-2);font-size:14px;margin-top:16px;max-width:320px}
.footer-col h4{font-size:14px;letter-spacing:.06em;color:var(--text);margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:var(--text-2)}
.footer-col a:hover{color:var(--accent)}
.qr-box{
  width:104px;height:104px;border-radius:14px;display:grid;place-items:center;text-align:center;
  font-size:12px;color:var(--text-3);line-height:1.6;
  background:var(--bg-3);border:1px dashed var(--line-strong);
}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  padding:20px 0;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .entry-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,1fr)}
  .step::before{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .section{padding:72px 0}
  .dl-grid{grid-template-columns:1fr;gap:14px}
}
@media (max-width:900px){
  .nav-links{
    position:fixed;top:72px;right:0;width:min(320px,86vw);height:calc(100vh - 72px);
    flex-direction:column;align-items:stretch;gap:6px;margin-left:0;padding:20px;
    background:#0A1120;border-left:1px solid var(--line);
    transform:translateX(106%);transition:transform 220ms ease-out;
    overflow-y:auto;z-index:70;
  }
  body.nav-open .nav-links{transform:translateX(0)}
  .nav-link{padding:14px 14px;font-size:16px;min-height:48px;display:flex;align-items:center;border-radius:12px}
  .nav-link.is-active{background:rgba(36,227,180,.1);color:#fff}
  .nav-link.is-active::after{display:none}
  .nav-actions .btn-outline{display:none}
  .nav-toggle{display:block}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .container{padding:0 18px}
  .nav-inner{height:64px}
  .brand-text{font-size:15.5px}
  .nav-links{top:64px;height:calc(100vh - 64px)}
  .section{padding:56px 0}
  .section--tight{padding:48px 0}
  .page-hero{padding:52px 0 48px}
  .page-hero h1{font-size:30px}
  .hero-actions .btn{width:100%}
  .hero-metrics{gap:18px}
  .steps{grid-template-columns:1fr}
  .safety-grid{grid-template-columns:1fr}
  .check-row{grid-template-columns:1fr;gap:8px}
  .cta-panel{padding:26px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column}
  .float-card{position:static;margin-top:16px;display:inline-block}
}
@media (max-width:420px){
  .container{padding:0 14px}
  .page-hero h1{font-size:27px}
  .card-pad,.entry-card .entry-body,.entry-mini{padding:20px}
  .cta-panel{padding:20px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category3 */
:root{
  --bg:#05070E;
  --layer-1:#0A1120;
  --layer-2:#101A2E;
  --primary:#2E6BFF;
  --accent:#24E3B4;
  --amber:#FF9E2C;
  --text:#EAF2FF;
  --text-2:#9AAECB;
  --text-3:#61748F;
  --ok:#3ECF8E;
  --warn:#FFB020;
  --err:#FF5C63;
  --glass:rgba(255,255,255,.05);
  --glass-border:rgba(140,180,255,.14);
  --glass-border-hover:rgba(140,180,255,.3);
  --radius-card:18px;
  --radius-panel:24px;
  --radius-img:16px;
  --radius-btn:12px;
  --shadow-card:0 18px 40px rgba(2,6,20,.55);
  --shadow-glow:0 0 0 1px rgba(36,227,180,.35),0 10px 30px rgba(36,227,180,.22);
  --ease:200ms cubic-bezier(.22,.61,.36,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:'HarmonyOS Sans SC','PingFang SC','Microsoft YaHei','Inter',system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--radius-img);object-fit:cover;}
a{color:inherit;text-decoration:none;transition:color var(--ease),opacity var(--ease);}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.4px;line-height:1.32;}
p{margin:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:700;letter-spacing:.02em;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease);
  white-space:nowrap;
}
.btn-sm{padding:9px 18px;font-size:14px;border-radius:10px;}
.btn-primary{
  background:linear-gradient(135deg,#3BF2C4,#18CFA0);
  color:#04140F;
  box-shadow:0 8px 24px rgba(36,227,180,.24);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(36,227,180,.45),0 14px 34px rgba(36,227,180,.34);}
.btn-outline{
  background:rgba(36,227,180,.04);
  border:1px solid rgba(36,227,180,.45);
  color:#C9FBEC;
}
.btn-outline:hover{background:rgba(36,227,180,.12);border-color:rgba(36,227,180,.75);transform:translateY(-2px);}
.btn-ghost{color:var(--accent);padding:10px 4px;font-weight:700;}
.btn-ghost .arrow{transition:transform var(--ease);display:inline-block;}
.btn-ghost:hover .arrow{transform:translateX(5px);}
.btn:disabled,.btn.is-disabled{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none;}
.btn.is-loading{pointer-events:none;opacity:.75;}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  font-size:12px;letter-spacing:.06em;font-weight:600;line-height:1.6;
}
.badge-cyan{background:rgba(36,227,180,.12);color:#57F0C9;border:1px solid rgba(36,227,180,.28);}
.badge-blue{background:rgba(46,107,255,.14);color:#93B6FF;border:1px solid rgba(46,107,255,.3);}
.badge-amber{background:rgba(255,158,44,.14);color:#FFC077;border:1px solid rgba(255,158,44,.3);}

/* ============ 头部 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(5,7,14,.86);
  border-bottom:1px solid transparent;
  transition:background var(--ease),border-color var(--ease),backdrop-filter var(--ease);
}
.site-header.is-scrolled{
  background:rgba(8,13,26,.78);
  backdrop-filter:blur(18px) saturate(120%);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
  border-bottom-color:rgba(140,180,255,.12);
}
.nav-inner{display:flex;align-items:center;gap:28px;height:72px;}
.logo{display:inline-flex;align-items:center;gap:11px;flex-shrink:0;}
.logo-mark{
  width:32px;height:32px;border-radius:10px;
  background:linear-gradient(140deg,#2E6BFF,#24E3B4);
  display:grid;place-items:center;flex-shrink:0;
  box-shadow:0 6px 18px rgba(36,227,180,.28);
}
.logo-mark span{
  width:12px;height:12px;border-radius:3px;
  background:#04140F;display:block;
  transform:rotate(45deg);
}
.brand-text{font-size:16px;font-weight:800;letter-spacing:-.2px;color:var(--text);}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-link{
  position:relative;padding:10px 12px;border-radius:10px;
  font-size:14.5px;color:var(--text-2);font-weight:600;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--accent);border-radius:2px;
  transform:scaleX(0);transform-origin:left;
  transition:transform var(--ease);
  box-shadow:0 0 12px rgba(36,227,180,.8);
}
.nav-link:hover{color:var(--text);}
.nav-link.is-active{color:var(--text);}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid rgba(140,180,255,.18);
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
  background:rgba(255,255,255,.03);
}
.nav-toggle span{width:18px;height:2px;background:var(--text);border-radius:2px;transition:transform var(--ease),opacity var(--ease);}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ============ Hero ============ */
.page-hero{
  position:relative;overflow:hidden;
  padding:78px 0 72px;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid rgba(140,180,255,.08);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(5,7,14,.86),rgba(5,7,14,.95)),
    radial-gradient(700px 320px at 15% 12%,rgba(46,107,255,.24),transparent 70%),
    radial-gradient(560px 300px at 88% 78%,rgba(36,227,180,.14),transparent 72%);
}
.page-hero::after{
  content:"";position:absolute;inset:0;opacity:.35;
  background-image:linear-gradient(rgba(140,180,255,.07) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(140,180,255,.07) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.7),transparent 78%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.7),transparent 78%);
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--text-3);margin-bottom:22px;flex-wrap:wrap;}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .sep{color:rgba(140,180,255,.35);}
.breadcrumb .current{color:var(--text-2);}
.page-hero h1{
  font-size:clamp(30px,4.4vw,52px);
  max-width:880px;
  margin-bottom:18px;
}
.page-hero h1 em{
  font-style:normal;
  background:linear-gradient(120deg,#4BE9C1,#2E6BFF);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:17px;color:var(--text-2);max-width:640px;margin-bottom:28px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ============ 板块通用 ============ */
.section{padding:96px 0;}
.section-alt{background:var(--layer-1);border-top:1px solid rgba(140,180,255,.07);border-bottom:1px solid rgba(140,180,255,.07);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head .eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.14em;font-weight:700;
  color:var(--accent);margin-bottom:14px;text-transform:uppercase;
}
.section-head h2{font-size:clamp(25px,3vw,34px);margin-bottom:14px;}
.section-head p{color:var(--text-2);font-size:15.5px;}

/* ============ Bento 功能网格 ============ */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:20px;}
.bento-item{
  position:relative;
  background:var(--glass);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-card);
  padding:24px;
  backdrop-filter:blur(18px) saturate(120%);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
  box-shadow:var(--shadow-card);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
  overflow:hidden;
}
.bento-item:hover{transform:translateY(-4px);border-color:var(--glass-border-hover);}
.bento-item h3{font-size:19px;margin-bottom:10px;}
.bento-item p{font-size:14.5px;color:var(--text-2);}
.bento-a{grid-column:span 7;}
.bento-b{grid-column:span 5;}
.bento-c{grid-column:span 4;}
.bento-d{grid-column:span 4;}
.bento-e{grid-column:span 4;}
.bento-item .shot{
  margin-top:18px;border-radius:var(--radius-img);overflow:hidden;
  border:1px solid rgba(140,180,255,.12);position:relative;
}
.bento-item .shot img{width:100%;aspect-ratio:16/10;height:auto;}
.bento-item .shot::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 45%,rgba(5,7,14,.72));
  pointer-events:none;
}
.icon-dot{
  width:44px;height:44px;border-radius:50%;
  display:grid;place-items:center;margin-bottom:16px;
  background:rgba(46,107,255,.14);
  border:1px solid rgba(46,107,255,.3);
  color:#8FB3FF;font-weight:800;font-size:16px;
}
.icon-dot.cyan{background:rgba(36,227,180,.12);border-color:rgba(36,227,180,.3);color:#5CECCB;}
.icon-dot.amber{background:rgba(255,158,44,.12);border-color:rgba(255,158,44,.3);color:#FFC077;}
.param-list{display:grid;gap:10px;margin-top:18px;}
.param-row{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13.5px;padding-bottom:10px;border-bottom:1px dashed rgba(140,180,255,.12);}
.param-row:last-child{border-bottom:0;padding-bottom:0;}
.param-row dt{color:var(--text-3);}
.param-row dd{margin:0;color:var(--text);font-weight:700;font-family:'Sora','Inter',sans-serif;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}

/* ============ 流程 ============ */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.flow-step{
  position:relative;
  background:var(--layer-2);
  border:1px solid rgba(140,180,255,.12);
  border-radius:var(--radius-card);
  padding:26px 22px;
  transition:transform var(--ease),border-color var(--ease);
}
.flow-step:hover{transform:translateY(-4px);border-color:var(--glass-border-hover);}
.flow-step::before{
  content:"";position:absolute;top:44px;left:100%;width:20px;height:1px;
  background:linear-gradient(90deg,rgba(36,227,180,.55),transparent);
}
.flow-step:last-child::before{display:none;}
.flow-num{
  width:36px;height:36px;border-radius:50%;display:grid;place-items:center;
  font-weight:800;font-size:14px;font-family:'Sora','Inter',sans-serif;
  background:rgba(36,227,180,.1);border:1px solid rgba(36,227,180,.4);
  color:#5CECCB;margin-bottom:16px;
  box-shadow:0 0 0 5px rgba(36,227,180,.05);
}
.flow-step h3{font-size:17px;margin-bottom:8px;}
.flow-step p{font-size:14px;color:var(--text-2);}

/* ============ 卡片式对照行 ============ */
.compare{display:grid;gap:12px;}
.compare-head{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:12px;padding:0 20px 6px;font-size:12.5px;letter-spacing:.08em;color:var(--text-3);font-weight:700;}
.compare-row{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:12px;align-items:center;
  padding:18px 20px;border-radius:var(--radius-card);
  background:var(--glass);border:1px solid var(--glass-border);
  transition:transform var(--ease),border-color var(--ease),background var(--ease);
}
.compare-row:hover{transform:translateX(4px);border-color:var(--glass-border-hover);background:rgba(255,255,255,.075);}
.compare-row .c-name{font-weight:700;font-size:15px;}
.compare-row .c-name small{display:block;font-weight:400;font-size:13px;color:var(--text-3);margin-top:2px;}
.cell{display:inline-flex;align-items:center;gap:7px;font-size:14px;color:var(--text-2);}
.dot{width:7px;height:7px;border-radius:50%;flex-shrink:0;}
.dot.ok{background:var(--ok);box-shadow:0 0 8px rgba(62,207,142,.7);}
.dot.part{background:var(--warn);box-shadow:0 0 8px rgba(255,176,32,.6);}
.dot.no{background:var(--text-3);}

/* ============ 轮播 ============ */
.carousel{position:relative;}
.carousel-viewport{overflow:hidden;border-radius:var(--radius-panel);border:1px solid var(--glass-border);}
.carousel-track{display:flex;transition:transform 520ms cubic-bezier(.3,.7,.3,1);}
.shot-slide{min-width:100%;position:relative;}
.shot-slide img{width:100%;aspect-ratio:16/9;height:auto;border-radius:0;}
.shot-caption{
  position:absolute;left:0;right:0;bottom:0;
  padding:26px 28px 22px;
  background:linear-gradient(180deg,transparent,rgba(5,7,14,.92));
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
}
.shot-caption p{font-size:15px;color:var(--text);font-weight:600;}
.carousel-arrow{
  position:absolute;top:50%;transform:translateY(-50%);
  width:44px;height:44px;border-radius:50%;
  background:rgba(10,17,32,.82);border:1px solid rgba(140,180,255,.24);
  color:var(--text);font-size:20px;line-height:1;
  display:grid;place-items:center;z-index:4;
  transition:background var(--ease),border-color var(--ease),transform var(--ease);
}
.carousel-arrow:hover{background:rgba(46,107,255,.3);border-color:rgba(36,227,180,.55);}
.carousel-arrow.prev{left:16px;}
.carousel-arrow.next{right:16px;}
.carousel-dots{display:flex;justify-content:center;gap:10px;margin-top:22px;}
.carousel-dots button{
  width:10px;height:10px;border-radius:50%;
  background:rgba(140,180,255,.28);transition:all var(--ease);
}
.carousel-dots button.is-active{width:26px;border-radius:999px;background:var(--accent);box-shadow:0 0 12px rgba(36,227,180,.6);}

/* ============ 清单 ============ */
.checklist{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;}
.check-item{
  display:flex;gap:14px;padding:20px 22px;
  background:var(--layer-2);border:1px solid rgba(140,180,255,.1);
  border-radius:var(--radius-card);
  transition:border-color var(--ease),transform var(--ease);
}
.check-item:hover{border-color:var(--glass-border-hover);transform:translateY(-3px);}
.check-item .mark{
  width:22px;height:22px;border-radius:7px;flex-shrink:0;margin-top:3px;
  background:rgba(36,227,180,.14);border:1px solid rgba(36,227,180,.4);
  color:#5CECCB;font-size:12px;font-weight:800;display:grid;place-items:center;
}
.check-item h3{font-size:16px;margin-bottom:6px;}
.check-item p{font-size:14px;color:var(--text-2);}

/* ============ FAQ ============ */
.faq{max-width:920px;margin:0 auto;display:grid;gap:12px;}
.faq details{
  background:var(--glass);border:1px solid var(--glass-border);
  border-left:3px solid rgba(36,227,180,.55);
  border-radius:var(--radius-card);
  overflow:hidden;transition:border-color var(--ease),background var(--ease);
}
.faq details[open]{border-color:rgba(36,227,180,.45);background:rgba(255,255,255,.07);}
.faq summary{
  list-style:none;cursor:pointer;
  min-height:56px;display:flex;align-items:center;gap:14px;
  padding:16px 22px;font-size:16px;font-weight:700;
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{
  content:"+";margin-left:auto;font-size:20px;color:var(--accent);
  transition:transform var(--ease);line-height:1;
}
.faq details[open] summary::after{transform:rotate(45deg);}
.faq .answer{padding:0 22px 20px;max-width:720px;color:var(--text-2);font-size:14.5px;}

/* ============ CTA 面板 ============ */
.cta-panel{
  position:relative;overflow:hidden;
  background:var(--glass);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-panel);
  padding:46px 42px;
  backdrop-filter:blur(18px) saturate(120%);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
  box-shadow:var(--shadow-card);
  display:grid;grid-template-columns:1fr 1.25fr;gap:38px;align-items:center;
}
.cta-panel::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(520px 260px at 12% 15%,rgba(46,107,255,.2),transparent 70%),
             radial-gradient(420px 240px at 92% 90%,rgba(36,227,180,.14),transparent 72%);
  pointer-events:none;
}
.cta-panel > *{position:relative;z-index:2;}
.cta-panel h2{font-size:clamp(23px,2.6vw,30px);margin-bottom:12px;}
.cta-panel p{color:var(--text-2);font-size:15px;}
.dl-grid{display:grid;gap:12px;}
.dl-btn{
  display:flex;align-items:center;gap:16px;
  padding:16px 20px;border-radius:var(--radius-card);
  background:rgba(10,17,32,.7);border:1px solid rgba(140,180,255,.16);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease),background var(--ease);
}
.dl-btn:hover{transform:translateY(-3px);border-color:var(--glass-border-hover);background:rgba(16,26,46,.85);}
.dl-btn.primary{
  border-color:rgba(36,227,180,.42);
  box-shadow:0 0 0 1px rgba(36,227,180,.18);
  background:linear-gradient(120deg,rgba(36,227,180,.12),rgba(46,107,255,.08));
}
.dl-btn.primary:hover{box-shadow:var(--shadow-glow);}
.dl-icon{
  width:42px;height:42px;border-radius:14px;flex-shrink:0;
  display:grid;place-items:center;
  background:rgba(46,107,255,.16);border:1px solid rgba(46,107,255,.3);
  color:#9CBBFF;font-weight:800;font-size:13px;
}
.dl-btn.primary .dl-icon{background:rgba(36,227,180,.16);border-color:rgba(36,227,180,.38);color:#5CECCB;}
.dl-meta strong{display:block;font-size:15.5px;}
.dl-meta span{font-size:13px;color:var(--text-3);}
.cta-note{margin-top:16px;font-size:13px;color:var(--text-3);}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--layer-1);
  border-top:1px solid rgba(140,180,255,.1);
  padding:64px 0 26px;
  margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:34px;}
.footer-brand p{color:var(--text-2);font-size:14px;margin-top:16px;max-width:320px;}
.footer-col h4{font-size:14px;letter-spacing:.06em;color:var(--text);margin-bottom:16px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:var(--text-2);}
.footer-col a:hover{color:var(--accent);}
.qr-box{
  width:112px;height:112px;border-radius:14px;
  border:1px dashed rgba(140,180,255,.3);
  background:rgba(16,26,46,.7);
  display:grid;place-items:center;text-align:center;
  font-size:12.5px;color:var(--text-3);line-height:1.6;
}
.footer-bottom{
  margin-top:44px;padding-top:22px;
  border-top:1px solid rgba(140,180,255,.1);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}

/* ============ 响应式 ============ */
@media (max-width:1100px){
  .nav-links{gap:2px;}
  .nav-link{padding:10px 9px;font-size:14px;}
  .bento-a{grid-column:span 12;}
  .bento-b{grid-column:span 12;}
  .bento-c,.bento-d,.bento-e{grid-column:span 6;}
  .cta-panel{grid-template-columns:1fr;gap:28px;}
  .flow{grid-template-columns:repeat(2,1fr);}
  .flow-step:nth-child(2)::before{display:none;}
}
@media (max-width:980px){
  .nav-links{
    position:fixed;top:64px;right:0;bottom:0;width:min(320px,86vw);
    background:rgba(8,13,26,.96);
    backdrop-filter:blur(20px) saturate(120%);
    -webkit-backdrop-filter:blur(20px) saturate(120%);
    border-left:1px solid rgba(140,180,255,.14);
    flex-direction:column;align-items:stretch;gap:0;
    padding:22px 18px 40px;
    transform:translateX(100%);
    transition:transform 260ms cubic-bezier(.3,.7,.3,1);
    overflow-y:auto;z-index:90;
    margin-left:0;
  }
  .nav-links.is-open{transform:translateX(0);}
  .nav-link{
    padding:16px 14px;font-size:16px;border-radius:12px;
    min-height:48px;display:flex;align-items:center;
    border-bottom:1px solid rgba(140,180,255,.08);
  }
  .nav-link::after{display:none;}
  .nav-link.is-active{color:var(--accent);background:rgba(36,227,180,.07);}
  .nav-toggle{display:flex;}
  .nav-actions .btn-outline{display:none;}
  .nav-inner{height:64px;gap:14px;}
  .compare-head{display:none;}
  .compare-row{grid-template-columns:1fr;gap:10px;}
  .cell{font-size:13.5px;}
}
@media (max-width:767px){
  body{font-size:15.5px;}
  .container{padding:0 18px;}
  .section{padding:56px 0;}
  .page-hero{padding:52px 0 48px;}
  .page-hero h1{font-size:30px;}
  .hero-sub{font-size:15.5px;}
  .hero-actions .btn{width:100%;}
  .bento{grid-template-columns:1fr;gap:16px;}
  .bento-c,.bento-d,.bento-e{grid-column:span 12;}
  .flow{grid-template-columns:1fr;}
  .flow-step::before{display:none;}
  .checklist{grid-template-columns:1fr;}
  .carousel-arrow{width:38px;height:38px;font-size:17px;}
  .carousel-arrow.prev{left:8px;}
  .carousel-arrow.next{right:8px;}
  .shot-caption{padding:18px 16px 16px;}
  .cta-panel{padding:30px 22px;border-radius:20px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:420px){
  .container{padding:0 14px;}
  .brand-text{font-size:14.5px;}
  .page-hero h1{font-size:26px;}
  .section-head h2{font-size:22px;}
  .bento-item{padding:20px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important;}
}

/* roulang page: category4 */
/* ===== 设计令牌 ===== */
:root{
  --bg:#05070E;
  --bg-2:#0A1120;
  --bg-3:#101A2E;
  --panel:#0F1930;
  --blue:#2E6BFF;
  --cyan:#24E3B4;
  --amber:#FF9E2C;
  --text:#EAF2FF;
  --text-2:#9AAECB;
  --text-3:#61748F;
  --ok:#3ECF8E;
  --warn:#FFB020;
  --err:#FF5C63;
  --glass:rgba(255,255,255,.05);
  --line:rgba(140,180,255,.14);
  --line-strong:rgba(140,180,255,.30);
  --r-card:18px;
  --r-lg:24px;
  --r-img:16px;
  --r-btn:12px;
  --r-pill:999px;
  --shadow:0 18px 40px rgba(2,6,20,.55);
  --glow:0 0 0 1px rgba(36,227,180,.35),0 10px 30px rgba(36,227,180,.22);
  --shadow-sm:0 8px 22px rgba(2,6,20,.45);
  --t:200ms ease-out;
  --container:1200px;
  --font:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Sora","Inter",system-ui,-apple-system,sans-serif;
}
/* ===== Reset / Base ===== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  background-image:
    radial-gradient(900px 460px at 82% -6%,rgba(46,107,255,.16),transparent 62%),
    radial-gradient(700px 380px at 8% 8%,rgba(36,227,180,.08),transparent 60%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px;
}
h1,h2,h3,h4{margin:0;letter-spacing:-.4px;font-weight:800;line-height:1.3}
h1{font-size:clamp(30px,4.4vw,52px)}
h2{font-size:clamp(24px,2.8vw,34px)}
h3{font-size:clamp(18px,1.6vw,21px)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer}
input{font-family:inherit}
::selection{background:rgba(36,227,180,.28);color:#fff}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-sm{padding:72px 0}
.section-head{max-width:760px;margin-bottom:44px}
.section-head .eyebrow{display:inline-flex;align-items:center;gap:8px;margin-bottom:16px}
.section-head p{margin-top:14px;color:var(--text-2);font-size:16px}
.eyebrow{
  font-size:12px;letter-spacing:.06em;color:var(--cyan);
  background:rgba(36,227,180,.10);border:1px solid rgba(36,227,180,.24);
  padding:5px 12px;border-radius:var(--r-pill);
}
.eyebrow.amber{color:var(--amber);background:rgba(255,158,44,.10);border-color:rgba(255,158,44,.26)}

/* ===== 通用组件 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.02em;line-height:1;
  transition:transform var(--t),box-shadow var(--t),background var(--t),border-color var(--t),color var(--t);
  white-space:nowrap;
}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-primary{
  background:linear-gradient(120deg,#24E3B4,#1FC8E8);
  color:#04211B;box-shadow:0 8px 24px rgba(36,227,180,.22);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(36,227,180,.45),0 14px 32px rgba(36,227,180,.32)}
.btn-outline{
  background:transparent;border-color:rgba(36,227,180,.42);color:#BFF6E7;
}
.btn-outline:hover{background:rgba(36,227,180,.08);border-color:rgba(36,227,180,.7);transform:translateY(-2px)}
.btn-blue{
  background:transparent;border-color:rgba(46,107,255,.5);color:#CFDEFF;
}
.btn-blue:hover{background:rgba(46,107,255,.10);border-color:rgba(46,107,255,.85)}
.btn-ghost{
  background:none;border:none;color:var(--cyan);padding:8px 0;font-weight:600;
}
.btn-ghost .arrow{transition:transform var(--t)}
.btn-ghost:hover .arrow{transform:translateX(5px)}
.btn:disabled,.btn.is-disabled{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none}
.btn.is-loading{color:transparent;position:relative;pointer-events:none}
.btn.is-loading::after{
  content:"";position:absolute;inset:0;margin:auto;width:16px;height:16px;border-radius:50%;
  border:2px solid rgba(255,255,255,.35);border-top-color:#fff;animation:spin .8s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;letter-spacing:.06em;padding:4px 11px;border-radius:var(--r-pill);
  background:rgba(36,227,180,.10);color:#8BF2D6;border:1px solid rgba(36,227,180,.22);
}
.badge.amber{background:rgba(255,158,44,.10);color:#FFC178;border-color:rgba(255,158,44,.24)}
.badge.blue{background:rgba(46,107,255,.12);color:#A9C2FF;border-color:rgba(46,107,255,.28)}
.badge.grey{background:rgba(154,174,203,.10);color:var(--text-2);border-color:rgba(154,174,203,.22)}
.card{
  background:var(--glass);
  background-color:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px;
  box-shadow:var(--shadow);
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.card:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.glass{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow);
}
@supports ((backdrop-filter:blur(18px)) or (-webkit-backdrop-filter:blur(18px))){
  .glass,.card{background:rgba(255,255,255,.05);-webkit-backdrop-filter:blur(18px) saturate(120%);backdrop-filter:blur(18px) saturate(120%)}
}
.icon-dot{
  width:44px;height:44px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(46,107,255,.14);border:1px solid rgba(46,107,255,.28);
  color:#9DB9FF;font-size:18px;font-weight:700;flex:none;
}
.icon-dot.cyan{background:rgba(36,227,180,.12);border-color:rgba(36,227,180,.28);color:#8BF2D6}
.icon-dot.amber{background:rgba(255,158,44,.12);border-color:rgba(255,158,44,.28);color:#FFC178}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line),transparent);margin:0}
.cover{width:100%;object-fit:cover;border-radius:var(--r-img);aspect-ratio:16/9}

/* ===== 导航 ===== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(5,7,14,.82);
  border-bottom:1px solid transparent;
  transition:background var(--t),border-color var(--t),box-shadow var(--t);
}
.site-header.is-scrolled{
  background:rgba(5,7,14,.74);
  -webkit-backdrop-filter:blur(18px) saturate(120%);
  backdrop-filter:blur(18px) saturate(120%);
  border-bottom-color:var(--line);
  box-shadow:0 10px 30px rgba(2,6,20,.5);
}
.nav-inner{display:flex;align-items:center;gap:22px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:none}
.logo-mark{
  width:32px;height:32px;border-radius:10px;
  background:linear-gradient(135deg,rgba(46,107,255,.9),rgba(36,227,180,.9));
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 18px rgba(36,227,180,.24);
}
.logo-mark span{
  width:13px;height:13px;border-radius:4px;background:#05070E;
  box-shadow:inset 0 0 0 2px rgba(255,255,255,.72);
}
.brand-text{font-size:16px;font-weight:800;letter-spacing:-.2px;color:var(--text);white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;padding:10px 13px;border-radius:10px;
  font-size:15px;color:var(--text-2);transition:color var(--t),background var(--t);
  white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.04)}
.nav-link.is-active{color:var(--text);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;border-radius:2px;
  background:var(--cyan);box-shadow:0 0 12px rgba(36,227,180,.85);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex:none}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text-2);transition:transform var(--t),opacity var(--t)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ===== 内页 Hero ===== */
.page-hero{
  position:relative;overflow:hidden;padding:76px 0 66px;
  background-image:linear-gradient(180deg,rgba(5,7,14,.86),rgba(5,7,14,.94)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(140,180,255,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(140,180,255,.055) 1px,transparent 1px);
  background-size:52px 52px;mask-image:radial-gradient(circle at 50% 40%,#000,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 40%,#000,transparent 78%);
}
.page-hero .container{position:relative;z-index:2}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:20px;flex-wrap:wrap}
.breadcrumb a{color:var(--text-2);transition:color var(--t)}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb .sep{color:var(--text-3);opacity:.7}
.page-hero h1{max-width:900px}
.page-hero .lead{margin-top:18px;max-width:720px;font-size:17px;color:var(--text-2)}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.search-bar{
  margin-top:34px;display:flex;gap:12px;max-width:720px;
  background:rgba(10,17,32,.9);border:1px solid var(--line);
  border-radius:16px;padding:10px;box-shadow:var(--shadow-sm);
}
.search-bar input{
  flex:1;min-width:0;background:transparent;border:none;color:var(--text);
  padding:11px 14px;font-size:15px;border-radius:10px;
}
.search-bar input::placeholder{color:var(--text-3)}
.search-bar input:focus{outline:none}
.search-bar:focus-within{border-color:rgba(36,227,180,.55);box-shadow:0 0 0 4px rgba(36,227,180,.12)}
.search-hint{margin-top:12px;font-size:13px;color:var(--text-3)}
.search-status{margin-top:14px;font-size:14px;color:var(--cyan);min-height:20px}

/* ===== 锚点标签条 ===== */
.anchor-bar{
  position:sticky;top:72px;z-index:60;
  background:rgba(6,9,18,.92);border-bottom:1px solid var(--line);
  -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
}
.anchor-inner{display:flex;gap:10px;overflow-x:auto;padding:14px 0;scrollbar-width:none}
.anchor-inner::-webkit-scrollbar{display:none}
.anchor-chip{
  flex:none;font-size:14px;padding:8px 16px;border-radius:var(--r-pill);
  border:1px solid var(--line);color:var(--text-2);background:rgba(255,255,255,.03);
  transition:all var(--t);
}
.anchor-chip:hover{color:var(--text);border-color:var(--line-strong);transform:translateY(-1px)}
.anchor-chip.is-current{color:#04211B;background:linear-gradient(120deg,#24E3B4,#1FC8E8);border-color:transparent;font-weight:600}

/* ===== 快捷入口卡 ===== */
.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.quick-card{
  display:flex;flex-direction:column;overflow:hidden;padding:0;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow);transition:transform var(--t),border-color var(--t);
}
.quick-card:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.quick-card .thumb{position:relative;aspect-ratio:16/9;overflow:hidden}
.quick-card .thumb img{width:100%;height:100%;object-fit:cover;border-radius:0}
.quick-card .thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,7,14,.10),rgba(5,7,14,.78));
}
.quick-card .thumb .badge{position:absolute;left:14px;top:14px;z-index:2}
.quick-body{padding:20px 22px 24px}
.quick-body h3{font-size:18px;margin-bottom:8px}
.quick-body p{font-size:14px;color:var(--text-2);line-height:1.75}
.quick-body .count{margin-top:14px;font-size:13px;color:var(--cyan);display:inline-flex;align-items:center;gap:6px}

/* ===== FAQ 手风琴 ===== */
.faq-groups{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;align-items:start}
.faq-group{padding:0;overflow:hidden}
.faq-group-head{
  display:flex;align-items:center;gap:12px;padding:24px 26px 18px;
  border-bottom:1px solid var(--line);
}
.faq-group-head h3{font-size:19px}
.faq-group-head .sub{font-size:13px;color:var(--text-3);margin-top:4px}
.faq-list{padding:10px 10px 14px}
.faq-item{
  border-radius:12px;margin:4px 0;overflow:hidden;
  transition:background var(--t);
}
.faq-item:hover{background:rgba(255,255,255,.03)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 16px;cursor:pointer;list-style:none;
  border-left:3px solid transparent;font-size:15.5px;font-weight:600;color:var(--text);
  transition:border-color var(--t),color var(--t);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item[open]{background:rgba(46,107,255,.06)}
.faq-item[open] summary{border-left-color:var(--cyan);color:#fff}
.faq-icon{
  flex:none;width:24px;height:24px;border-radius:50%;
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;
  font-size:15px;color:var(--cyan);line-height:1;transition:transform var(--t),background var(--t);
}
.faq-item[open] .faq-icon{transform:rotate(45deg);background:rgba(36,227,180,.12)}
.faq-answer{
  padding:2px 20px 20px 19px;max-width:720px;
  font-size:14.5px;color:var(--text-2);line-height:1.85;
}
.faq-answer ul{margin:10px 0 0;display:grid;gap:8px}
.faq-answer li{position:relative;padding-left:16px}
.faq-answer li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;
  background:rgba(36,227,180,.75);
}
.faq-empty{
  display:none;padding:44px 24px;text-align:center;color:var(--text-2);
}
.faq-empty.show{display:block}
.faq-empty .ring{
  width:52px;height:52px;margin:0 auto 14px;border-radius:50%;
  border:1px dashed rgba(140,180,255,.4);display:flex;align-items:center;justify-content:center;
  color:var(--cyan);font-size:20px;
}

/* ===== 自助排查步骤 ===== */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative}
.step{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 22px;box-shadow:var(--shadow-sm);
  transition:transform var(--t),border-color var(--t);
}
.step:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.step .num{
  width:34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;color:#04211B;background:linear-gradient(120deg,#24E3B4,#1FC8E8);
  box-shadow:0 8px 20px rgba(36,227,180,.24);margin-bottom:16px;
}
.step h3{font-size:17px;margin-bottom:8px}
.step p{font-size:14px;color:var(--text-2);line-height:1.75}
.step .tagline{margin-top:14px}

/* ===== 状态参数条 ===== */
.metrics{
  display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:34px;max-width:720px;
}
.metric{
  background:rgba(16,26,46,.66);border:1px solid var(--line);border-radius:14px;
  padding:14px 18px;display:flex;flex-direction:column;gap:4px;
}
.metric .k{font-size:12px;letter-spacing:.06em;color:var(--text-3)}
.metric .v{font-size:18px;font-weight:700;color:var(--text);font-family:"Sora","Inter",var(--font)}

/* ===== 支持 CTA 条 ===== */
.support-bar{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  padding:32px 36px;border-radius:var(--r-lg);
  background:linear-gradient(100deg,rgba(46,107,255,.18),rgba(36,227,180,.10));
  border:1px solid rgba(140,180,255,.20);
  box-shadow:var(--shadow);
}
.support-bar h2{font-size:24px;margin-bottom:8px}
.support-bar p{color:var(--text-2);font-size:15px;max-width:640px}
.support-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ===== 下载面板 ===== */
.download-panel{padding:44px;border-radius:var(--r-lg)}
.download-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:30px}
.download-head p{color:var(--text-2);font-size:15px;margin-top:10px;max-width:560px}
.dl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.dl-item{
  display:flex;align-items:center;gap:14px;padding:18px 20px;border-radius:16px;
  border:1px solid var(--line);background:rgba(10,17,32,.72);
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.dl-item:hover{transform:translateY(-3px);border-color:var(--line-strong)}
.dl-item.is-primary{border-color:rgba(36,227,180,.45);box-shadow:var(--glow)}
.dl-item .dl-name{font-size:15px;font-weight:600}
.dl-item .dl-meta{font-size:12.5px;color:var(--text-3);margin-top:2px;letter-spacing:.02em}
.dl-foot{margin-top:24px;font-size:13px;color:var(--text-3);display:flex;gap:18px;flex-wrap:wrap}

/* ===== 页脚 ===== */
.site-footer{border-top:1px solid var(--line);background:rgba(6,9,18,.9);padding:64px 0 28px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.1fr;gap:36px}
.footer-brand p{margin-top:16px;font-size:14px;color:var(--text-2);max-width:320px;line-height:1.8}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--text)}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:var(--text-2);transition:color var(--t)}
.footer-col a:hover{color:var(--cyan)}
.qr-box{
  width:112px;height:112px;border-radius:14px;border:1px dashed rgba(140,180,255,.35);
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12.5px;color:var(--text-3);line-height:1.6;background:rgba(255,255,255,.02);
}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}

/* ===== 响应式 ===== */
@media (max-width:1279px){
  .quick-grid{grid-template-columns:repeat(3,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:1024px){
  .nav-links{
    position:fixed;top:64px;right:0;width:min(320px,86vw);height:calc(100vh - 64px);
    flex-direction:column;align-items:stretch;gap:6px;padding:20px;
    background:rgba(8,12,22,.98);border-left:1px solid var(--line);
    -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
    transform:translateX(100%);transition:transform 220ms ease-out;overflow-y:auto;
  }
  .nav-links.is-open{transform:translateX(0)}
  .nav-link{min-height:48px;display:flex;align-items:center;font-size:16px;padding:12px 14px}
  .nav-link.is-active::after{left:14px;right:auto;width:22px;bottom:12px}
  .nav-actions .btn-outline{display:none}
  .nav-toggle{display:flex}
  .nav-inner{height:64px}
  .anchor-bar{top:64px}
  .quick-grid{grid-template-columns:repeat(2,1fr)}
  .faq-groups{grid-template-columns:1fr}
  .dl-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px}
}
@media (max-width:820px){
  .section{padding:72px 0}
  .page-hero{padding:56px 0 48px}
  .download-panel{padding:30px}
  .support-bar{padding:26px}
}
@media (max-width:640px){
  .container{padding:0 18px}
  .section{padding:56px 0}
  .section-sm{padding:48px 0}
  h1{font-size:30px}
  .quick-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .metrics{grid-template-columns:1fr;gap:12px}
  .search-bar{flex-direction:column;padding:12px}
  .search-bar .btn{width:100%}
  .nav-actions .btn-primary{display:none}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .dl-item{flex-direction:row}
  .support-actions{width:100%}
  .support-actions .btn{width:100%}
  .faq-group-head{padding:20px 20px 16px}
}
@media (max-width:420px){
  .card{padding:20px}
  .download-panel{padding:22px}
  .support-bar{padding:22px}
  .brand-text{font-size:15px}
  .faq-item summary{font-size:15px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;transition-duration:.001ms!important}
  html{scroll-behavior:auto}
}