/* roulang page: index */
:root{
  --bg:#070A12;
  --bg-2:#0B1220;
  --primary:#16E0A1;
  --primary-2:#3D8BFF;
  --accent:#FF9E2C;
  --accent-2:#FF4D7D;
  --text:#E9EEF6;
  --muted:#93A2B8;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --glass:rgba(14,20,32,.62);
  --glow:0 0 24px rgba(22,224,161,.35);
  --glow-warm:0 0 20px rgba(255,158,44,.32);
  --shadow:inset 0 1px 0 rgba(255,255,255,.06),0 24px 48px -24px rgba(0,0,0,.8);
  --r-card:18px;
  --r-panel:20px;
  --r-btn:999px;
  --r-input:12px;
  --r-img:14px;
  --container:1200px;
  --ease:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  padding-bottom:80px;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:32px 32px;
  opacity:.04;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
em{font-style:normal}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;position:relative;z-index:1}

/* ---------- Header ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:200;transition:background var(--ease),backdrop-filter var(--ease)}
.site-header::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--line);transition:background var(--ease)}
.site-header.is-scrolled{background:rgba(11,18,32,.78);backdrop-filter:blur(14px) saturate(140%)}
.site-header.is-scrolled::after{background:linear-gradient(90deg,transparent,rgba(255,255,255,.16),transparent)}
.nav-wrap{display:flex;align-items:center;gap:36px;height:88px;transition:height var(--ease)}
.site-header.is-scrolled .nav-wrap{height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:700;white-space:nowrap;letter-spacing:0}
.brand-dot{width:8px;height:8px;border-radius:50%;background:var(--primary);box-shadow:var(--glow);flex:0 0 auto}
.brand-name{color:var(--text)}
.main-nav{display:flex;align-items:center;gap:36px;margin-left:auto}
.nav-link{position:relative;font-size:15px;color:var(--muted);padding:6px 0;transition:color var(--ease)}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:2px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform var(--ease),background var(--ease)}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--text);font-weight:600}
.nav-link.is-active::after{background:var(--primary);transform:scaleX(1);box-shadow:0 0 12px rgba(22,224,161,.5)}
.nav-cta{margin-left:8px}
.nav-toggle{display:none;margin-left:auto;width:44px;height:44px;border-radius:var(--r-input);border:1px solid var(--line);padding:11px 12px}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--text);transition:transform var(--ease),opacity var(--ease)}
.nav-toggle span+span{margin-top:5px}
.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)}

.mobile-drawer{
  position:fixed;inset:0;z-index:300;
  background:rgba(7,10,18,.96);
  backdrop-filter:blur(18px) saturate(140%);
  padding:96px 24px 40px;
  display:flex;flex-direction:column;
  transform:translateY(-102%);opacity:0;pointer-events:none;
  transition:transform 240ms ease-out,opacity 240ms ease-out;
}
.mobile-drawer.is-open{transform:translateY(0);opacity:1;pointer-events:auto}
.drawer-link{display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:20px;font-weight:600;padding:22px 4px;border-bottom:1px solid var(--line);color:var(--muted)}
.drawer-link.is-active{color:var(--text)}
.drawer-link.is-active::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--primary);box-shadow:var(--glow);margin-right:12px}
.drawer-link span{margin-right:auto}
.drawer-note{margin-top:auto;font-size:13px;color:var(--muted)}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;border-radius:var(--r-btn);font-size:15px;font-weight:600;padding:14px 28px;transition:transform var(--ease),box-shadow var(--ease),filter var(--ease),border-color var(--ease);white-space:nowrap}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#04120C;box-shadow:var(--glow)}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 32px rgba(22,224,161,.45)}
.btn-ghost{border:1px solid var(--line-strong);color:var(--text);background:transparent}
.btn-ghost:hover{border-color:var(--primary);transform:translateY(-2px);box-shadow:0 0 24px rgba(22,224,161,.16)}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-text{display:inline-flex;align-items:center;gap:8px;color:var(--primary);font-weight:600;padding:12px 2px;transition:color var(--ease)}
.btn-text .arrow{transition:transform var(--ease)}
.btn-text:hover .arrow{transform:translateX(4px)}
.btn:disabled,.btn[disabled]{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none}

/* ---------- Tags ---------- */
.tag{display:inline-flex;align-items:center;gap:6px;border-radius:var(--r-btn);padding:4px 12px;font-size:12px;letter-spacing:.02em;background:rgba(22,224,161,.12);color:var(--primary);border:1px solid rgba(22,224,161,.2);white-space:nowrap}
.tag-new{background:transparent;border-color:rgba(255,158,44,.5);color:var(--accent)}
.tag-blue{background:rgba(61,139,255,.12);color:#8FB8FF;border-color:rgba(61,139,255,.28)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;min-height:620px;display:flex;align-items:center;padding:150px 0 96px;background:linear-gradient(160deg,#070A12,#0E1626)}
.hero__bg{position:absolute;inset:0;z-index:0;background-image:linear-gradient(160deg,rgba(7,10,18,.92),rgba(11,18,32,.78)),url("/assets/images/backpic/back-1.webp");background-size:cover;background-position:center}
.hero__beam{position:absolute;top:-25%;right:-14%;width:58%;height:150%;z-index:0;pointer-events:none;background:linear-gradient(45deg,transparent 42%,rgba(22,224,161,.12) 50%,transparent 58%);transform:skewX(-12deg)}
.hero__grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;position:relative;z-index:2}
.hero h1{font-size:clamp(30px,4.4vw,56px);line-height:1.22}
.hero h1 .hl{color:var(--primary)}
.hero__sub{margin-top:22px;font-size:17px;color:var(--muted);max-width:560px;line-height:1.9}
.hero__actions{display:flex;align-items:center;gap:18px;margin-top:36px;flex-wrap:wrap}
.hero__metrics{display:flex;gap:44px;margin-top:46px;flex-wrap:wrap}
.metric strong{display:block;font-size:26px;line-height:1.2;color:var(--primary)}
.metric span{font-size:13px;color:var(--muted)}
.hero-card{position:relative;background:var(--glass);border:1px solid var(--line);border-radius:var(--r-panel);backdrop-filter:blur(14px) saturate(140%);box-shadow:var(--shadow);padding:20px;overflow:hidden}
.hero-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:linear-gradient(180deg,var(--primary),rgba(22,224,161,0))}
.hero-card__head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}
.hero-card__time{font-size:13px;color:var(--muted)}
.hero-card__title{margin-top:18px;font-size:17px;font-weight:600;line-height:1.6}
.hero-card__list{margin-top:16px;border-top:1px solid var(--line)}
.hero-card__list li{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px 0;border-bottom:1px solid var(--line);font-size:14px}
.hero-card__list li:last-child{border-bottom:0}
.hero-card__list span{color:var(--primary)}
.hero-card__list em{color:var(--muted);font-size:13px}

/* ---------- Media ---------- */
.media-16x9{display:block;position:relative;aspect-ratio:16/9;overflow:hidden;border-radius:var(--r-img);background:linear-gradient(135deg,rgba(22,224,161,.14),rgba(61,139,255,.08))}
.media-16x9 img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease)}
.card:hover .media-16x9 img{transform:scale(1.03)}

/* ---------- Sections ---------- */
.section{padding:96px 0;position:relative}
.section--alt{background:var(--bg-2)}
.section-head{max-width:740px;margin-bottom:40px}
.section-head h2{font-size:clamp(24px,2.6vw,32px)}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px}
.section-head--split{max-width:none;display:flex;align-items:flex-end;justify-content:space-between;gap:24px}
.section-head--split>div{max-width:640px}

/* ---------- Feature ---------- */
.feature-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:stretch}
.card{background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease)}
.card:hover{transform:translateY(-4px);border-color:rgba(255,255,255,.32);box-shadow:var(--shadow),0 0 24px rgba(22,224,161,.18)}
.feature-main{position:relative;display:flex;flex-direction:column;overflow:hidden;padding:22px;background:linear-gradient(160deg,#0B1220,#0E1626)}
.feature-main::before{content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:linear-gradient(180deg,var(--primary),rgba(22,224,161,0))}
.feature-main h3{margin-top:22px;font-size:24px}
.feature-main p{margin-top:14px;color:var(--muted);font-size:15px}
.check-list{margin-top:20px;display:grid;gap:12px}
.check-list li{position:relative;padding-left:26px;font-size:15px;color:var(--text)}
.check-list li::before{content:"";position:absolute;left:0;top:11px;width:10px;height:10px;border-radius:3px;background:linear-gradient(135deg,var(--primary),var(--primary-2));box-shadow:0 0 12px rgba(22,224,161,.5)}
.feature-side{display:grid;grid-template-rows:1fr 1fr;gap:24px}
.feature-side .card{position:relative;padding:22px;display:flex;flex-direction:column;gap:12px;overflow:hidden}
.feature-side .card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:linear-gradient(180deg,var(--primary-2),rgba(61,139,255,0))}
.feature-side h3{font-size:19px}
.feature-side p{color:var(--muted);font-size:15px}
.feature-side .tag{align-self:flex-start}

/* ---------- Scene ---------- */
.scene-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.device{border:1px solid var(--line-strong);border-radius:var(--r-panel);padding:10px;background:var(--bg-2);box-shadow:0 0 44px -14px rgba(22,224,161,.4)}
.device-bar{display:flex;gap:6px;padding:6px 8px 12px}
.device-bar i{width:9px;height:9px;border-radius:50%;background:rgba(255,255,255,.16)}
.device-bar i:first-child{background:rgba(255,158,44,.6)}
.device img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-img)}
.steps{display:grid;gap:30px;position:relative}
.step{display:grid;grid-template-columns:56px 1fr;gap:16px;position:relative}
.step__num{font-size:24px;font-weight:700;color:var(--primary);line-height:1.3}
.step h3{font-size:19px;margin-bottom:8px}
.step p{color:var(--muted);font-size:15px}
.step:not(:last-child)::after{content:"";position:absolute;left:14px;top:44px;bottom:-30px;width:1px;background:linear-gradient(180deg,rgba(22,224,161,.4),rgba(22,224,161,0))}

/* ---------- Social proof ---------- */
.logo-row{display:flex;gap:48px;overflow-x:auto;padding:8px 0 22px;border-bottom:1px solid var(--line);scrollbar-width:thin}
.logo-row span{font-size:15px;color:rgba(233,238,246,.35);white-space:nowrap;transition:color var(--ease)}
.logo-row span:hover{color:var(--text)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:44px}
.stat strong{display:block;font-size:40px;line-height:1.1;color:var(--primary)}
.stat span{font-size:13px;color:var(--muted)}
.quote{margin-top:44px;position:relative;background:var(--glass);border:1px solid var(--line);border-radius:var(--r-panel);backdrop-filter:blur(14px) saturate(140%);padding:32px;box-shadow:var(--shadow)}
.quote__mark{font-size:44px;line-height:1;color:var(--primary);opacity:.7}
.quote__text{margin-top:10px;font-size:17px;line-height:1.9}
.quote__foot{display:flex;align-items:center;gap:14px;margin-top:24px;padding-top:20px;border-top:1px solid var(--line)}
.avatar{width:44px;height:44px;border-radius:50%;flex:0 0 auto;background:linear-gradient(135deg,rgba(22,224,161,.35),rgba(61,139,255,.3));border:1px solid var(--line-strong);display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;color:var(--text)}
.quote__who strong{display:block;font-size:15px}
.quote__who span{font-size:13px;color:var(--muted)}

/* ---------- News ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{position:relative;display:flex;flex-direction:column;overflow:hidden;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease)}
.news-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:linear-gradient(180deg,var(--primary),rgba(22,224,161,0));z-index:2}
.news-card:hover{transform:translateY(-4px);border-color:rgba(255,255,255,.32);box-shadow:var(--shadow),0 0 24px rgba(22,224,161,.18)}
.news-card.is-feature{grid-column:span 2}
.news-card.is-feature .media-16x9{aspect-ratio:21/9}
.news-card__cover{display:block;border-radius:0;overflow:hidden}
.news-card__body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.news-card__meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--muted);flex-wrap:wrap}
.news-card__title{font-size:19px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card__title a:hover{color:var(--primary)}
.news-card__excerpt{color:var(--muted);font-size:15px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card__foot{margin-top:auto;padding-top:16px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--muted)}
.news-card__foot a{color:var(--primary);font-weight:600}
.news-card__foot a:hover{color:var(--accent)}
.empty-state{display:flex;flex-direction:column;align-items:center;gap:14px;padding:64px 24px;border:1px dashed var(--line-strong);border-radius:var(--r-panel);background:rgba(14,20,32,.5);text-align:center}
.empty-state svg{width:44px;height:44px;stroke:var(--muted);fill:none;stroke-width:1.5}
.empty-state p{color:var(--muted);font-size:15px}
.skeleton-row{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.skeleton{height:260px;border-radius:var(--r-card);background:rgba(22,224,161,.08);position:relative;overflow:hidden}
.skeleton::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.08),transparent);transform:translateX(-100%);animation:shine 1.6s infinite}
@keyframes shine{to{transform:translateX(100%)}}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;column-gap:48px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{position:relative;list-style:none;cursor:pointer;padding:22px 40px 22px 18px;font-size:16px;font-weight:600;line-height:1.6;transition:color var(--ease)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{content:"";position:absolute;left:0;top:26px;bottom:26px;width:3px;border-radius:2px;background:linear-gradient(180deg,var(--primary),rgba(22,224,161,.2))}
.faq-item summary::after{content:"+";position:absolute;right:10px;top:50%;transform:translateY(-50%);font-size:20px;font-weight:400;color:var(--primary);transition:transform var(--ease)}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq-item summary:hover{color:var(--primary)}
.faq-a{padding:0 40px 24px 18px;color:var(--muted);font-size:15px;line-height:1.9}

/* ---------- CTA ---------- */
.cta-band{position:relative;overflow:hidden;border-radius:var(--r-panel);border:1px solid var(--line);background:linear-gradient(160deg,#070A12,#0E1626);padding:76px 40px;text-align:center;box-shadow:var(--shadow)}
.cta-band::after{content:"";position:absolute;top:-30%;left:-10%;width:70%;height:160%;background:linear-gradient(45deg,transparent 44%,rgba(22,224,161,.12) 50%,transparent 56%);transform:skewX(-12deg);pointer-events:none}
.cta-band__inner{position:relative;z-index:2;max-width:720px;margin:0 auto}
.cta-band h2{font-size:clamp(24px,2.6vw,32px)}
.cta-band p{margin-top:18px;color:var(--muted);font-size:16px}
.cta-band__actions{margin-top:34px;display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
.cta-band__note{margin-top:20px;font-size:13px;color:var(--muted)}

/* ---------- Footer ---------- */
.site-footer{position:relative;margin-top:96px;background:var(--bg-2);border-top:1px solid var(--line)}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.18),transparent)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding:72px 0 48px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:700}
.footer-col h4{font-size:15px;margin-bottom:18px}
.footer-col p{color:var(--muted);font-size:14px;margin-top:16px;max-width:320px}
.footer-col a{display:block;color:var(--muted);font-size:14px;padding:5px 0;transition:color var(--ease)}
.footer-col a:hover{color:var(--primary)}
.footer-bottom{border-top:1px solid var(--line);padding:24px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--muted)}

/* ---------- Bottom bar ---------- */
.bottom-bar{position:fixed;left:0;right:0;bottom:0;z-index:250;background:rgba(11,18,32,.78);backdrop-filter:blur(14px) saturate(140%);border-top:1px solid var(--line);transition:transform 240ms ease-out}
.bottom-bar::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.18),transparent)}
.bottom-bar.is-hidden{transform:translateY(110%)}
.bottom-bar__inner{display:flex;align-items:center;gap:20px;height:64px}
.bottom-bar__text{font-size:14px;color:var(--muted);margin-right:auto;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.bottom-bar__text strong{color:var(--text);font-weight:600}
.bottom-bar__close{width:32px;height:32px;border-radius:50%;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--muted);flex:0 0 auto;transition:color var(--ease),border-color var(--ease)}
.bottom-bar__close:hover{color:var(--text);border-color:var(--line-strong)}

/* ---------- Responsive ---------- */
@media (max-width:1279px){
  .hero__grid{gap:40px}
  .scene-grid{gap:40px}
}
@media (max-width:1023px){
  .main-nav{gap:24px}
  .hero{padding:130px 0 80px;min-height:0}
  .hero__grid{grid-template-columns:1fr;gap:44px}
  .feature-grid{grid-template-columns:1fr}
  .feature-side{grid-template-rows:auto;grid-template-columns:1fr 1fr}
  .scene-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .section{padding:80px 0}
}
@media (max-width:767px){
  body{padding-bottom:88px}
  .main-nav,.nav-cta{display:none}
  .nav-toggle{display:block}
  .nav-wrap{height:72px}
  .site-header.is-scrolled .nav-wrap{height:64px}
  .container{padding:0 18px}
  .hero{padding:118px 0 64px}
  .hero__sub{font-size:16px}
  .hero__metrics{gap:28px;margin-top:34px}
  .hero__actions{gap:12px}
  .hero__actions .btn{width:100%}
  .section{padding:60px 0}
  .section-head--split{flex-direction:column;align-items:flex-start}
  .news-grid{grid-template-columns:1fr}
  .news-card.is-feature{grid-column:span 1}
  .news-card.is-feature .media-16x9{aspect-ratio:16/9}
  .feature-side{grid-template-columns:1fr}
  .faq-grid{grid-template-columns:1fr}
  .faq-item summary{padding:18px 36px 18px 16px;font-size:15px}
  .faq-a{padding:0 24px 22px 16px}
  .cta-band{padding:56px 22px}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding:56px 0 36px}
  .bottom-bar__inner{height:auto;padding:12px 0;flex-wrap:wrap;gap:12px}
  .bottom-bar__text{width:100%;white-space:normal;font-size:13px;line-height:1.6}
  .bottom-bar__inner .btn{flex:1}
  .stats{gap:18px}
  .stat strong{font-size:32px}
  .skeleton-row{grid-template-columns:1fr}
}
@media (max-width:420px){
  body{font-size:15px}
  .brand{font-size:17px}
  .hero h1{font-size:28px}
  .news-card__body{padding:16px}
  .quote{padding:24px}
}

/* roulang page: category1 */
:root{
  --bg:#070A12;
  --bg-2:#0B1220;
  --primary:#16E0A1;
  --primary-2:#3D8BFF;
  --accent:#FF9E2C;
  --accent-2:#FF4D7D;
  --text:#E9EEF6;
  --muted:#93A2B8;
  --disabled:#5A6678;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --glass:rgba(14,20,32,.62);
  --radius-card:18px;
  --radius-panel:20px;
  --radius-pill:999px;
  --radius-input:12px;
  --radius-img:14px;
  --glow-primary:0 0 24px rgba(22,224,161,.35);
  --glow-accent:0 0 20px rgba(255,158,44,.32);
  --shadow-card:inset 0 1px 0 rgba(255,255,255,.06), 0 24px 48px -24px rgba(0,0,0,.8);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.9;
  padding-bottom:80px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:linear-gradient(rgba(255,255,255,.35) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.35) 1px,transparent 1px);
  background-size:32px 32px;opacity:.035;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:0}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
input,textarea{font:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;position:relative;z-index:1}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(7,10,18,.74);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom-color:var(--line);
  box-shadow:inset 0 -1px 0 rgba(255,255,255,.06);
}
.header-inner{display:flex;align-items:center;height:80px;gap:24px;transition:height .18s var(--ease)}
.site-header.is-scrolled .header-inner{height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:600;letter-spacing:0;white-space:nowrap}
.brand-dot{width:8px;height:8px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px rgba(22,224,161,.9);flex:0 0 auto}
.main-nav{display:flex;align-items:center;gap:36px;margin:0 auto}
.nav-link{
  position:relative;font-size:15px;color:var(--muted);padding:6px 0;
  transition:color .18s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:center;
  transition:transform .18s var(--ease),background .18s var(--ease);
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--text);font-weight:600}
.nav-link.is-active::after{background:var(--primary);transform:scaleX(1);box-shadow:0 6px 14px -6px rgba(22,224,161,.9)}
.header-actions{display:flex;align-items:center;gap:14px}
.nav-toggle{display:none;width:44px;height:44px;border-radius:var(--radius-input);border:1px solid var(--line);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 .18s var(--ease),opacity .18s 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)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-pill);font-size:15px;font-weight:600;
  padding:13px 26px;border:1px solid transparent;white-space:nowrap;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),filter .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-primary{
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-2) 100%);
  color:#04140F;box-shadow:var(--glow-primary);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 32px rgba(22,224,161,.55)}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--text)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.btn-text{display:inline-flex;align-items:center;gap:8px;font-size:15px;color:var(--text);font-weight:600;padding:6px 0}
.btn-text .arw{transition:transform .18s var(--ease);color:var(--primary)}
.btn-text:hover .arw{transform:translateX(4px)}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;pointer-events:none}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  min-height:300px;display:flex;align-items:center;
  border-bottom:1px solid var(--line);
  background-image:linear-gradient(160deg,rgba(7,10,18,.95) 0%,rgba(11,18,32,.84) 60%,rgba(7,10,18,.94) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.page-hero::after{
  content:"";position:absolute;right:-12%;top:-45%;width:44%;height:190%;
  background:linear-gradient(115deg,rgba(22,224,161,.12),rgba(22,224,161,0) 70%);
  transform:rotate(12deg);pointer-events:none;
}
.hero-inner{display:flex;align-items:flex-end;justify-content:space-between;gap:48px;padding:64px 0 56px;width:100%}
.hero-copy{max-width:640px}
.breadcrumb{font-size:13px;color:var(--muted);margin-bottom:18px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--primary)}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.02em;
  color:var(--primary);background:rgba(22,224,161,.12);
  border-radius:var(--radius-pill);padding:5px 14px;margin-bottom:16px;
}
.page-hero h1{font-size:40px;line-height:1.25;margin-bottom:16px}
.hero-lead{font-size:17px;color:var(--muted);max-width:560px}
.hero-stats{display:flex;gap:32px;flex:0 0 auto}
.hero-stat{text-align:right}
.hero-stat b{display:block;font-size:26px;color:var(--primary);line-height:1.2;font-weight:700}
.hero-stat span{font-size:13px;color:var(--muted)}

/* ---------- stat strip ---------- */
.stat-strip{
  border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,rgba(11,18,32,.9),rgba(7,10,18,.6));
}
.stat-strip-inner{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:30px 0}
.stat-item{display:flex;flex-direction:column;gap:4px}
.stat-item b{font-size:30px;font-weight:700;color:var(--primary);line-height:1.2}
.stat-item span{font-size:13px;color:var(--muted)}

/* ---------- section base ---------- */
.section{padding:96px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:40px}
.section-head h2{font-size:30px;margin-bottom:12px}
.section-head p{font-size:15px;color:var(--muted);max-width:640px}
.section-tight{padding:72px 0}

/* ---------- category layout ---------- */
.cat-layout{display:grid;grid-template-columns:200px 1fr;gap:40px;align-items:start}
.filter-col{position:sticky;top:96px;display:flex;flex-direction:column;gap:6px;border-left:1px solid var(--line);padding-left:16px}
.filter-title{font-size:12px;letter-spacing:.06em;color:var(--disabled);margin-bottom:8px}
.filter-item{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:14px;color:var(--muted);padding:9px 12px;border-radius:var(--radius-input);
  border:1px solid transparent;transition:color .18s var(--ease),background .18s var(--ease),border-color .18s var(--ease);
}
.filter-item span.n{font-size:12px;color:var(--disabled)}
.filter-item:hover{color:var(--text);background:rgba(255,255,255,.04)}
.filter-item.is-active{
  color:var(--primary);background:rgba(22,224,161,.1);border-color:rgba(22,224,161,.28);font-weight:600;
}
.filter-item.is-active span.n{color:rgba(22,224,161,.7)}

/* ---------- entry cards ---------- */
.entry-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.entry-card{
  position:relative;display:flex;flex-direction:column;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.entry-card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:2px;z-index:2;
  background:linear-gradient(180deg,var(--primary),var(--primary-2));
}
.entry-card:hover{transform:translateY(-4px);border-color:rgba(255,255,255,.32);box-shadow:var(--shadow-card),var(--glow-primary)}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,rgba(22,224,161,.14),rgba(61,139,255,.08))}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .28s var(--ease)}
.entry-card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-tags{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;font-size:12px;letter-spacing:.02em;
  padding:4px 11px;border-radius:var(--radius-pill);
  background:rgba(22,224,161,.12);color:var(--primary);
}
.tag-new{
  background:transparent;border:1px solid rgba(255,158,44,.5);color:var(--accent);
}
.card-title{
  font-size:19px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-desc{
  font-size:15px;color:var(--muted);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--disabled);
}
.card-foot .go{color:var(--primary);display:inline-flex;align-items:center;gap:6px}
.card-foot .go .arw{transition:transform .18s var(--ease)}
.entry-card:hover .card-foot .go .arw{transform:translateX(4px)}

/* ---------- pager ---------- */
.pager{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:48px}
.pager a,.pager span{
  min-width:42px;height:42px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:var(--radius-input);border:1px solid var(--line);font-size:14px;color:var(--muted);
  padding:0 14px;transition:color .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease);
}
.pager a:hover{color:var(--text);border-color:var(--line-strong);background:rgba(255,255,255,.04)}
.pager .current{color:#04140F;background:linear-gradient(135deg,var(--primary),var(--primary-2));border-color:transparent;font-weight:700}
.pager .disabled{opacity:.45;pointer-events:none}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line)}
.step{position:relative;padding:32px 28px 8px 0;border-right:1px solid var(--line)}
.step:last-child{border-right:0}
.step-num{font-size:34px;font-weight:700;color:var(--primary);line-height:1;margin-bottom:16px;letter-spacing:.02em}
.step h3{font-size:18px;margin-bottom:10px}
.step p{font-size:15px;color:var(--muted);line-height:1.85}

/* ---------- row list ---------- */
.row-list{border-top:1px solid var(--line)}
.row-item{
  display:grid;grid-template-columns:110px 1fr auto;gap:24px;align-items:center;
  padding:20px 16px;border-bottom:1px solid var(--line);
  transition:background .18s var(--ease);
}
.row-item:hover{background:rgba(255,255,255,.03)}
.row-date{font-size:13px;color:var(--muted);letter-spacing:.02em}
.row-date b{display:block;font-size:17px;color:var(--text);font-weight:600}
.row-body h3{font-size:17px;margin-bottom:6px}
.row-body p{font-size:14px;color:var(--muted);line-height:1.8}
.row-arrow{color:var(--disabled);transition:color .18s var(--ease),transform .18s var(--ease)}
.row-item:hover .row-arrow{color:var(--primary);transform:translateX(4px)}
.glass-note{
  margin:24px 0;padding:22px 24px;border-radius:var(--radius-panel);
  background:var(--glass);backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line-strong);
  display:flex;align-items:center;gap:18px;
}
.glass-note .dot{width:10px;height:10px;border-radius:50%;background:var(--accent);box-shadow:var(--glow-accent);flex:0 0 auto}
.glass-note p{font-size:15px;color:var(--muted)}
.glass-note p b{color:var(--text)}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:0 48px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  padding:22px 44px 22px 18px;font-size:16px;font-weight:600;color:var(--text);
  transition:color .18s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:27px;width:3px;height:16px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 12px rgba(22,224,161,.6);
}
.faq-item summary::after{
  content:"+";position:absolute;right:12px;top:50%;transform:translateY(-50%);
  font-size:20px;color:var(--primary);transition:transform .18s var(--ease);line-height:1;
}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq-item summary:hover{color:var(--primary)}
.faq-answer{padding:0 44px 22px 18px;font-size:15px;color:var(--muted);line-height:1.9}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background-image:linear-gradient(160deg,rgba(7,10,18,.94),rgba(14,22,38,.9)),url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
}
.cta-band::after{
  content:"";position:absolute;left:-8%;bottom:-60%;width:38%;height:180%;
  background:linear-gradient(115deg,rgba(255,158,44,.12),rgba(255,158,44,0) 70%);
  transform:rotate(10deg);pointer-events:none;
}
.cta-inner{padding:88px 0;text-align:center;display:flex;flex-direction:column;align-items:center;gap:20px}
.cta-inner h2{font-size:32px}
.cta-inner p{font-size:16px;color:var(--muted);max-width:620px}
.cta-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap;justify-content:center;margin-top:8px}

/* ---------- footer ---------- */
.site-footer{
  background:var(--bg-2);border-top:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  padding:72px 0 0;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:56px}
.footer-col{display:flex;flex-direction:column;gap:12px}
.footer-col h4{font-size:14px;color:var(--text);letter-spacing:.02em;margin-bottom:6px}
.footer-col a{font-size:14px;color:var(--muted);transition:color .18s var(--ease)}
.footer-col a:hover{color:var(--primary)}
.footer-col p{font-size:14px;color:var(--disabled);line-height:1.8}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:600;color:var(--text)}
.footer-bottom{
  border-top:1px solid var(--line);padding:22px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:13px;color:var(--disabled);flex-wrap:wrap;
}

/* ---------- bottom bar ---------- */
.bottom-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:var(--glass);backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);
  border-top:1px solid var(--line-strong);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.bottom-bar.is-hidden{display:none}
.bottom-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:64px;padding:10px 0}
.bottom-text{font-size:14px;color:var(--muted)}
.bottom-text b{color:var(--text);font-weight:600}
.bottom-actions{display:flex;align-items:center;gap:14px}
.bottom-close{width:32px;height:32px;border-radius:50%;border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;color:var(--muted);font-size:15px;line-height:1}
.bottom-close:hover{color:var(--text);border-color:var(--line-strong)}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .container{padding:0 22px}
  .hero-inner{gap:32px}
  .page-hero h1{font-size:36px}
}
@media (max-width:1023px){
  .nav-toggle{display:flex}
  .main-nav{
    position:fixed;left:0;right:0;top:64px;bottom:0;
    flex-direction:column;align-items:stretch;gap:0;margin:0;
    padding:20px 24px 40px;
    background:rgba(7,10,18,.96);
    backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);
    border-top:1px solid var(--line);
    opacity:0;transform:translateY(-8px);pointer-events:none;
    transition:opacity .2s var(--ease),transform .2s var(--ease);
    overflow-y:auto;
  }
  .main-nav.is-open{opacity:1;transform:none;pointer-events:auto}
  .nav-link{padding:18px 4px;border-bottom:1px solid var(--line);font-size:17px}
  .nav-link::after{display:none}
  .nav-link.is-active{color:var(--primary)}
  .nav-link.is-active::before{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--primary);margin-right:10px;vertical-align:middle}
  .header-actions .btn-primary{display:none}
  .hero-inner{flex-direction:column;align-items:flex-start;padding:52px 0 44px}
  .hero-stats{gap:28px}
  .hero-stat{text-align:left}
  .cat-layout{grid-template-columns:1fr;gap:28px}
  .filter-col{
    position:static;flex-direction:row;overflow-x:auto;border-left:0;padding-left:0;
    border-bottom:1px solid var(--line);padding-bottom:14px;gap:10px;
    scrollbar-width:none;
  }
  .filter-col::-webkit-scrollbar{display:none}
  .filter-title{display:none}
  .filter-item{white-space:nowrap;border:1px solid var(--line)}
  .entry-grid{grid-template-columns:repeat(2,1fr)}
  .stat-strip-inner{grid-template-columns:repeat(2,1fr);gap:20px}
  .steps{grid-template-columns:1fr;border-top:1px solid var(--line)}
  .step{border-right:0;border-bottom:1px solid var(--line);padding:26px 0}
  .step:last-child{border-bottom:0}
  .faq-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  body{padding-bottom:96px}
  .container{padding:0 18px}
  .header-inner{height:64px}
  .section{padding:56px 0}
  .section-tight{padding:48px 0}
  .page-hero h1{font-size:30px}
  .hero-lead{font-size:15px}
  .hero-stats{flex-wrap:wrap;gap:20px}
  .hero-stat b{font-size:22px}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:28px}
  .section-head h2{font-size:24px}
  .entry-grid{grid-template-columns:1fr}
  .stat-item b{font-size:24px}
  .row-item{grid-template-columns:1fr;gap:8px;padding:18px 4px}
  .row-date b{display:inline;font-size:14px;margin-right:8px}
  .row-arrow{display:none}
  .cta-inner{padding:64px 0}
  .cta-inner h2{font-size:24px}
  .cta-actions{width:100%;flex-direction:column;gap:14px}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:40px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .bottom-inner{flex-wrap:wrap;row-gap:8px;padding:10px 0;min-height:72px}
  .bottom-text{font-size:13px;line-height:1.6}
  .bottom-actions .btn{padding:9px 16px;font-size:13px}
  .glass-note{flex-direction:column;align-items:flex-start;gap:12px}
  .pager{flex-wrap:wrap}
}
@media (max-width:420px){
  body{font-size:15px}
  .page-hero h1{font-size:26px}
  .card-body{padding:16px}
  .card-title{font-size:17px}
  .step-num{font-size:28px}
  .hero-stat b{font-size:20px}
  .cta-inner h2{font-size:22px}
}

/* roulang page: article */
:root{
  --bg:#070A12;
  --bg-2:#0B1220;
  --deep-a:#070A12;
  --deep-b:#0E1626;
  --primary:#16E0A1;
  --primary-2:#3D8BFF;
  --accent:#FF9E2C;
  --accent-2:#FF4D7D;
  --text:#E9EEF6;
  --text-2:#D7E1EE;
  --muted:#93A2B8;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --glass:rgba(14,20,32,.62);
  --glow-main:0 0 24px rgba(22,224,161,.35);
  --glow-warm:0 0 20px rgba(255,158,44,.32);
  --radius-card:18px;
  --radius-panel:20px;
  --radius-pill:999px;
  --radius-input:12px;
  --radius-img:14px;
  --shadow-card:inset 0 1px 0 rgba(255,255,255,.06), 0 24px 48px -24px rgba(0,0,0,.8);
  --font:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  position:relative;
  min-height:100vh;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  letter-spacing:0;
  padding-bottom:88px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  background-image:
    linear-gradient(rgba(255,255,255,.5) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.5) 1px, transparent 1px);
  background-size:32px 32px;
  opacity:.04;
  pointer-events:none;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input,textarea{font:inherit;color:inherit;}
ul,ol{list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(22,224,161,.28);color:#fff;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(7,10,18,.72);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid var(--line);
  transition:background .25s ease-out, box-shadow .25s ease-out;
}
.site-header.is-scrolled{
  background:rgba(11,18,32,.88);
  box-shadow:inset 0 .5px 0 rgba(255,255,255,.16), 0 18px 36px -28px rgba(0,0,0,.95);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:76px;
  transition:height .25s ease-out;
}
.site-header.is-scrolled .header-inner{height:64px;}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:19px;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--text);
}
.brand-dot{
  width:9px;height:9px;border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 12px rgba(22,224,161,.75);
  flex:none;
}
.main-nav{display:flex;align-items:center;gap:36px;}
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--muted);
  padding:6px 0;
  transition:color .18s ease-out;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  border-radius:2px;
  background:var(--accent);
  opacity:0;
  transform:translateY(3px);
  transition:opacity .18s ease-out, transform .18s ease-out, background .18s ease-out;
}
.nav-link:hover{color:var(--text);}
.nav-link:hover::after{opacity:1;transform:none;}
.nav-link.is-active{color:var(--text);font-weight:600;}
.nav-link.is-active::after{
  opacity:1;transform:none;
  background:var(--primary);
  box-shadow:0 8px 16px -8px rgba(22,224,161,.95);
}
.header-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  align-items:center;justify-content:center;
  transition:border-color .18s ease-out;
}
.nav-toggle:hover{border-color:var(--primary);}
.nav-toggle span{display:block;width:16px;height:1.6px;background:var(--text);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:16px;height:1.6px;background:var(--text);border-radius:2px;
}
.nav-toggle span::before{top:-5px;}
.nav-toggle span::after{top:5px;}
.mobile-drawer{
  display:none;
  position:fixed;
  left:0;right:0;top:64px;bottom:0;
  z-index:55;
  background:rgba(7,10,18,.97);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  padding:8px 24px 40px;
  flex-direction:column;
  overflow-y:auto;
}
.mobile-drawer.is-open{display:flex;}
.mobile-drawer .nav-link{
  display:block;
  padding:18px 0;
  font-size:17px;
  color:var(--text);
  border-bottom:1px solid var(--line);
}
.mobile-drawer .nav-link::after{display:none;}
.mobile-drawer .nav-link.is-active{color:var(--primary);font-weight:700;}
.mobile-drawer .drawer-cta{margin-top:26px;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:var(--radius-pill);
  font-size:15px;
  font-weight:600;
  padding:13px 26px;
  border:1px solid transparent;
  white-space:nowrap;
  transition:transform .18s ease-out, box-shadow .18s ease-out, filter .18s ease-out, border-color .18s ease-out, color .18s ease-out, background .18s ease-out;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-2) 135%);
  color:#04160F;
  box-shadow:0 0 0 rgba(22,224,161,.35);
}
.btn-primary:hover{
  transform:translateY(-2px);
  filter:brightness(1.06);
  box-shadow:0 0 32px rgba(22,224,161,.38);
}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:transparent;
  border-color:var(--line);
  color:var(--text);
}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:600;
  color:var(--primary);
}
.btn-link svg{transition:transform .18s ease-out;}
.btn-link:hover svg{transform:translateX(4px);}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none;filter:none;}

/* ---------- Article hero ---------- */
.article-hero{
  position:relative;
  overflow:hidden;
  padding:38px 0 58px;
  background-image:
    linear-gradient(160deg, rgba(7,10,18,.94) 0%, rgba(11,18,32,.86) 100%),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.article-hero::after{
  content:"";
  position:absolute;
  top:-45%;
  right:-12%;
  width:58%;
  height:190%;
  background:linear-gradient(45deg, rgba(22,224,161,.13), rgba(22,224,161,0) 62%);
  transform:rotate(8deg);
  pointer-events:none;
}
.article-hero .container{position:relative;z-index:1;}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--muted);
  margin-bottom:24px;
}
.breadcrumb a{transition:color .18s ease-out;}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{opacity:.45;}
.breadcrumb .current{color:var(--text-2);}
.meta-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px 16px;
  margin-bottom:20px;
}
.pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 13px;
  border-radius:var(--radius-pill);
  font-size:12px;
  letter-spacing:.02em;
  background:rgba(22,224,161,.12);
  border:1px solid rgba(22,224,161,.24);
  color:var(--primary);
}
.pill-accent{
  background:rgba(255,158,44,.12);
  border-color:rgba(255,158,44,.3);
  color:var(--accent);
}
.meta-item{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13px;
  color:var(--muted);
}
.meta-item svg{opacity:.8;}
.article-title{
  font-size:clamp(26px,4vw,40px);
  line-height:1.28;
  font-weight:800;
  letter-spacing:-.01em;
  max-width:940px;
}
.article-title .hl{color:var(--primary);}
.hero-divider{
  margin-top:28px;
  height:1px;
  background:linear-gradient(90deg,rgba(255,255,255,.16),rgba(255,255,255,0));
}

/* ---------- Article layout ---------- */
.article-main{padding:64px 0 84px;}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,760px) 260px;
  gap:56px;
  justify-content:center;
  align-items:start;
}
.article-panel{min-width:0;}
.article-body{
  font-size:17px;
  line-height:1.9;
  color:var(--text-2);
  word-wrap:break-word;
  overflow-wrap:break-word;
}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 20px;}
.article-body h2{
  position:relative;
  margin:48px 0 18px;
  padding-left:16px;
  font-size:26px;
  line-height:1.35;
  color:var(--text);
  font-weight:750;
  scroll-margin-top:96px;
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;top:7px;bottom:7px;
  width:4px;
  border-radius:2px;
  background:linear-gradient(180deg,var(--primary),var(--primary-2));
}
.article-body h3{
  margin:34px 0 14px;
  font-size:20px;
  line-height:1.4;
  color:var(--text);
  font-weight:700;
  scroll-margin-top:96px;
}
.article-body h4{margin:26px 0 12px;font-size:17px;color:var(--text);}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:24px;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin:8px 0;}
.article-body ul li::marker{color:var(--primary);}
.article-body ol li::marker{color:var(--primary);font-weight:600;}
.article-body blockquote{
  margin:26px 0;
  padding:18px 22px;
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-left:3px solid var(--primary);
  border-radius:var(--radius-input);
  color:#C9D5E6;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--radius-img);height:auto;margin:8px 0 10px;}
.article-body figure{margin:26px 0;}
.article-body figcaption{
  margin-top:10px;
  text-align:center;
  font-size:13px;
  color:var(--muted);
}
.article-body a{
  color:var(--primary);
  border-bottom:1px solid rgba(22,224,161,.35);
  transition:border-color .18s ease-out,color .18s ease-out;
}
.article-body a:hover{border-bottom-color:var(--primary);}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:0 0 24px;
  font-size:15px;
}
.article-body th,.article-body td{
  padding:12px 10px;
  text-align:left;
  border-bottom:1px solid var(--line);
}
.article-body th{color:var(--text);font-weight:600;background:rgba(255,255,255,.02);}
.article-body code{
  background:rgba(22,224,161,.1);
  color:var(--primary);
  padding:2px 6px;
  border-radius:6px;
  font-size:14px;
}
.article-body hr{border:0;height:1px;background:var(--line);margin:36px 0;}

/* ---------- Aside / TOC ---------- */
.article-aside{min-width:0;}
.toc{
  position:sticky;
  top:100px;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius-panel);
  padding:22px 20px;
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-card);
}
.toc h3{
  font-size:12px;
  letter-spacing:.08em;
  color:var(--muted);
  margin-bottom:14px;
  font-weight:600;
}
.toc-link{
  display:block;
  font-size:14px;
  line-height:1.6;
  color:var(--muted);
  padding:8px 0 8px 14px;
  border-left:2px solid transparent;
  transition:color .18s ease-out,border-color .18s ease-out;
}
.toc-link:hover{color:var(--text);border-left-color:rgba(22,224,161,.5);}
.toc-link.is-current{color:var(--primary);border-left-color:var(--primary);}
.toc-empty{font-size:13px;color:var(--muted);line-height:1.7;}
.aside-card{
  margin-top:20px;
  padding:20px;
  border:1px solid var(--line);
  border-radius:var(--radius-panel);
  background:linear-gradient(160deg,rgba(22,224,161,.10),rgba(11,18,32,.4));
}
.aside-card h4{font-size:15px;margin-bottom:8px;color:var(--text);}
.aside-card p{font-size:13px;color:var(--muted);line-height:1.8;margin-bottom:14px;}

/* ---------- Article footer ---------- */
.article-foot{
  margin-top:52px;
  padding-top:28px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  gap:18px;
  align-items:center;
  justify-content:space-between;
}
.tag-list{display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  font-size:12px;
  letter-spacing:.02em;
  padding:6px 13px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  color:var(--muted);
  transition:border-color .18s ease-out,color .18s ease-out,transform .18s ease-out;
}
.tag:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);}

/* ---------- Empty state ---------- */
.empty-state{
  border:1px dashed var(--line-strong);
  border-radius:var(--radius-panel);
  padding:56px 28px;
  text-align:center;
  background:rgba(255,255,255,.02);
}
.empty-state svg{margin:0 auto 18px;color:var(--primary);opacity:.85;}
.empty-state h2{font-size:22px;margin-bottom:10px;color:var(--text);}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:24px;}

/* ---------- Sections ---------- */
.related-section{padding:0 0 96px;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:36px;
}
.section-head h2{font-size:clamp(22px,3vw,30px);line-height:1.3;font-weight:750;}
.section-head p{margin-top:10px;font-size:15px;color:var(--muted);max-width:620px;}
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.card{
  position:relative;
  display:flex;
  flex-direction:column;
  overflow:hidden;
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
}
.card::before{
  content:"";
  position:absolute;
  left:0;top:0;bottom:0;
  width:2px;
  background:linear-gradient(180deg,var(--primary),var(--primary-2));
  opacity:.75;
  z-index:2;
}
.card:hover{
  transform:translateY(-4px);
  border-color:rgba(255,255,255,.32);
  box-shadow:var(--shadow-card),0 0 24px rgba(22,224,161,.18);
}
.card-media{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:linear-gradient(135deg,rgba(22,224,161,.16),rgba(61,139,255,.12));
}
.card-media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .3s ease-out;
}
.card:hover .card-media img{transform:scale(1.03);}
.card-body{
  display:flex;
  flex-direction:column;
  gap:10px;
  padding:18px 20px 20px;
  flex:1;
}
.card-body h3{font-size:18px;line-height:1.45;font-weight:700;}
.card-body p{font-size:14px;line-height:1.75;color:var(--muted);}
.card-meta{
  margin-top:auto;
  padding-top:12px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:12px;
  color:var(--muted);
}
.card-meta .go{color:var(--primary);display:inline-flex;align-items:center;gap:4px;}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  padding:88px 0;
  background:linear-gradient(160deg,var(--deep-a) 0%,var(--deep-b) 100%);
  border-top:1px solid var(--line);
  text-align:center;
}
.cta-band::after{
  content:"";
  position:absolute;
  top:-60%;
  left:-10%;
  width:70%;
  height:220%;
  background:linear-gradient(45deg,rgba(22,224,161,.12),rgba(22,224,161,0) 60%);
  transform:rotate(-9deg);
  pointer-events:none;
}
.cta-band .container{position:relative;z-index:1;}
.cta-band h2{font-size:clamp(24px,3.4vw,32px);line-height:1.32;margin-bottom:16px;}
.cta-band p{color:var(--muted);font-size:16px;max-width:640px;margin:0 auto 32px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:16px;justify-content:center;align-items:center;}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--bg-2);
  border-top:1px solid rgba(255,255,255,.06);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  padding:72px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:56px;
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:18px;
  font-weight:700;
  margin-bottom:14px;
}
.footer-col h4{
  font-size:14px;
  font-weight:600;
  letter-spacing:.02em;
  margin-bottom:14px;
  color:var(--text);
}
.footer-col a{
  display:block;
  font-size:14px;
  color:var(--muted);
  padding:7px 0;
  transition:color .18s ease-out,transform .18s ease-out;
}
.footer-col a:hover{color:var(--primary);transform:translateX(3px);}
.footer-col p{font-size:14px;line-height:1.85;color:var(--muted);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  align-items:center;
  justify-content:space-between;
  border-top:1px solid var(--line);
  padding:22px 0 28px;
  font-size:13px;
  color:var(--muted);
}

/* ---------- Bottom bar ---------- */
.bottom-bar{
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:70;
  background:rgba(11,18,32,.72);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-top:1px solid rgba(255,255,255,.16);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.bottom-bar.is-hidden{display:none;}
.bottom-bar-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  min-height:64px;
}
.bottom-text{font-size:14px;color:var(--muted);}
.bottom-text strong{color:var(--text);font-weight:600;}
.bottom-actions{display:flex;align-items:center;gap:10px;}
.bottom-close{
  width:32px;height:32px;
  border-radius:50%;
  border:1px solid var(--line);
  color:var(--muted);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:16px;line-height:1;
  transition:border-color .18s ease-out,color .18s ease-out;
}
.bottom-close:hover{border-color:var(--primary);color:var(--primary);}

/* ---------- Loading skeleton ---------- */
.skeleton{
  position:relative;
  overflow:hidden;
  background:rgba(22,224,161,.08);
  border-radius:var(--radius-img);
}
.skeleton::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(255,255,255,0),rgba(255,255,255,.12),rgba(255,255,255,0));
  transform:translateX(-100%);
  animation:sweep 1.4s infinite;
}
@keyframes sweep{to{transform:translateX(100%);}}
.img-fallback{background:linear-gradient(135deg,rgba(22,224,161,.18),rgba(61,139,255,.12));}

/* ---------- Responsive ---------- */
@media (max-width:1180px){
  .main-nav{gap:26px;}
}
@media (max-width:1023px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:36px;}
  .article-aside{display:none;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  body{padding-bottom:96px;}
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{height:64px;}
  .site-header.is-scrolled .header-inner{height:60px;}
  .mobile-drawer{top:64px;}
  .header-actions .btn-sm{display:none;}
  .article-hero{padding:28px 0 44px;}
  .article-main{padding:48px 0 64px;}
  .article-body{font-size:16px;}
  .article-body h2{font-size:22px;margin-top:40px;}
  .article-body h3{font-size:18px;}
  .related-section{padding-bottom:64px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;}
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .cta-band{padding:64px 0;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;padding-bottom:40px;}
  .bottom-bar-inner{min-height:72px;flex-direction:column;align-items:flex-start;gap:10px;padding-top:10px;padding-bottom:10px;}
  .bottom-actions{width:100%;justify-content:space-between;}
}
@media (max-width:520px){
  .container{padding:0 18px;}
  .brand{font-size:17px;}
  .article-title{font-size:24px;}
  .article-body{font-size:15px;line-height:1.85;}
  .article-body p{margin-bottom:18px;}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .empty-state{padding:40px 20px;}
}

/* roulang page: category2 */
:root{
  --bg:#070A12;
  --bg-2:#0B1220;
  --bg-3:#0E1626;
  --primary:#16E0A1;
  --primary-2:#3D8BFF;
  --accent:#FF9E2C;
  --accent-2:#FF4D7D;
  --text:#E9EEF6;
  --muted:#93A2B8;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --glass:rgba(14,20,32,.62);
  --glow-primary:0 0 24px rgba(22,224,161,.35);
  --glow-accent:0 0 20px rgba(255,158,44,.32);
  --r-card:18px;
  --r-panel:20px;
  --r-pill:999px;
  --r-input:12px;
  --r-img:14px;
  --shadow:inset 0 1px 0 rgba(255,255,255,.06), 0 24px 48px -24px rgba(0,0,0,.8);
  --container:1200px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  padding-bottom:80px;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.9;
  letter-spacing:0;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:32px 32px;
  opacity:.045;
}
img{max-width:100%;display:block;object-fit:cover}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--primary)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;position:relative;z-index:1}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);
  padding:13px 26px;
  font-size:15px;font-weight:600;
  line-height:1;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),filter .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-2) 100%);
  color:#04131A;
  box-shadow:var(--glow-primary),inset 0 1px 0 rgba(255,255,255,.3);
}
.btn-primary:hover{
  color:#04131A;
  filter:brightness(1.08);
  transform:translateY(-2px);
  box-shadow:0 0 32px rgba(22,224,161,.5),inset 0 1px 0 rgba(255,255,255,.35);
}
.btn-primary:active{transform:translateY(0);filter:brightness(.98)}
.btn-ghost{
  border:1px solid var(--line-strong);
  color:var(--text);
  background:transparent;
}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.btn-text{color:var(--primary);padding:8px 0;font-weight:600}
.btn-text .arrow{display:inline-block;transition:transform .18s var(--ease)}
.btn-text:hover .arrow{transform:translateX(4px)}
.btn-sm{padding:10px 20px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;pointer-events:none}

/* ============ 头部导航 ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:80;
  border-bottom:1px solid transparent;
  transition:background .25s var(--ease),border-color .25s var(--ease),backdrop-filter .25s var(--ease);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:36px;
  height:88px;
  transition:height .25s var(--ease);
}
.site-header.is-stuck{
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom-color:var(--line);
  box-shadow:0 .5px 0 rgba(255,255,255,.08) inset;
}
.site-header.is-stuck .header-inner{height:64px}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:19px;font-weight:700;letter-spacing:-.01em;color:var(--text);
  flex-shrink:0;
}
.brand:hover{color:var(--text)}
.brand-dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--primary);
  box-shadow:var(--glow-primary);
  flex-shrink:0;
}
.main-nav{display:flex;align-items:center;gap:36px;margin-left:auto;margin-right:auto}
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--muted);
  padding:8px 0;
  transition:color .18s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  border-radius:2px;
  background:transparent;
  transition:background .18s var(--ease),box-shadow .18s var(--ease);
}
.nav-link:hover{color:var(--text)}
.nav-link:hover::after{background:var(--accent);box-shadow:var(--glow-accent)}
.nav-link.is-active{color:var(--text);font-weight:600}
.nav-link.is-active::after{background:var(--primary);box-shadow:var(--glow-primary)}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.menu-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  align-items:center;justify-content:center;
  flex-direction:column;gap:4px;
}
.menu-toggle span{display:block;width:16px;height:1.6px;background:var(--text);border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease)}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(5.6px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-5.6px) rotate(-45deg)}

.drawer{
  position:fixed;inset:0;z-index:90;
  background:rgba(7,10,18,.96);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  display:flex;flex-direction:column;
  opacity:0;visibility:hidden;
  transition:opacity .2s var(--ease),visibility .2s var(--ease);
}
.drawer.is-open{opacity:1;visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:72px;padding:0 24px;border-bottom:1px solid var(--line)}
.drawer-close{font-size:26px;line-height:1;color:var(--muted);width:44px;height:44px;display:flex;align-items:center;justify-content:center}
.drawer-close:hover{color:var(--primary)}
.drawer-nav{display:flex;flex-direction:column;padding:8px 24px}
.drawer-link{
  padding:20px 4px;font-size:18px;border-bottom:1px solid var(--line);
  display:flex;align-items:center;gap:10px;color:var(--muted);
}
.drawer-link.is-active{color:var(--text);font-weight:700}
.drawer-link.is-active::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--primary);box-shadow:var(--glow-primary)}
.drawer-cta{margin:24px;}

/* ============ 页面 Hero ============ */
.page-hero{
  position:relative;
  margin-top:88px;
  min-height:240px;
  display:flex;align-items:center;
  background-image:linear-gradient(160deg,rgba(7,10,18,.93),rgba(11,18,32,.82)),url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center 30%;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";position:absolute;top:-40%;right:-6%;
  width:42%;height:190%;
  background:linear-gradient(90deg,rgba(22,224,161,.16),rgba(22,224,161,0));
  transform:skewX(-18deg);
  pointer-events:none;
}
.page-hero-inner{
  display:flex;align-items:flex-end;justify-content:space-between;gap:40px;
  padding:56px 24px;
  width:100%;
}
.crumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);margin-bottom:16px}
.crumb a{color:var(--muted)}
.crumb span{color:#5A6678}
.page-hero h1{font-size:40px;margin-bottom:14px}
.hero-lead{max-width:640px;color:var(--muted);font-size:16px}
.hero-facts{display:flex;gap:32px;flex-shrink:0}
.fact{text-align:right}
.fact-num{display:block;font-size:28px;font-weight:700;color:var(--primary);line-height:1.2}
.fact-label{font-size:13px;color:var(--muted)}

/* ============ 板块通用 ============ */
.section{padding:96px 0;position:relative}
.section.tight{padding:64px 0}
.section-head{max-width:720px;margin-bottom:40px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.02em;color:var(--primary);
  background:rgba(22,224,161,.12);
  border-radius:var(--r-pill);
  padding:5px 14px;margin-bottom:16px;
}
.section-title{font-size:30px;margin-bottom:14px}
.section-desc{color:var(--muted);font-size:16px}
.section-head.split{display:flex;max-width:none;align-items:flex-end;justify-content:space-between;gap:24px}

/* ============ 数据条 ============ */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--r-panel);
  overflow:hidden;
}
.stat-item{background:var(--bg-2);padding:28px 24px}
.stat-item strong{display:block;font-size:34px;font-weight:700;color:var(--primary);line-height:1.15}
.stat-item span{font-size:13px;color:var(--muted)}

/* ============ 图文卡片 ============ */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.card{
  position:relative;
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:var(--r-panel);
  box-shadow:var(--shadow);
  overflow:hidden;
  transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.card::before{
  content:"";position:absolute;left:0;top:22px;bottom:22px;width:2px;
  border-radius:2px;
  background:linear-gradient(180deg,var(--primary),rgba(22,224,161,0));
  z-index:2;
}
.card:hover{transform:translateY(-4px);border-color:rgba(255,255,255,.32);box-shadow:var(--shadow),0 0 28px rgba(22,224,161,.18)}
.card:hover .media img{transform:scale(1.03)}
.media{aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,rgba(22,224,161,.18),rgba(61,139,255,.14))}
.media img{width:100%;height:100%;transition:transform .3s var(--ease)}
.media-body{padding:24px 26px 26px}
.media-body h3{font-size:19px;margin-bottom:10px}
.media-body p{color:var(--muted);font-size:15px}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}
.tag{
  font-size:12px;letter-spacing:.02em;
  padding:4px 12px;border-radius:var(--r-pill);
  background:rgba(22,224,161,.12);color:var(--primary);
}
.tag-new{border:1px solid rgba(255,158,44,.5);color:var(--accent);background:rgba(255,158,44,.08)}

/* ============ 筛选标签行 ============ */
.filter-bar{
  display:flex;flex-wrap:wrap;gap:10px;
  padding-bottom:28px;margin-bottom:8px;
  border-bottom:1px solid var(--line);
}
.filter-chip{
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  padding:9px 20px;
  font-size:14px;color:var(--muted);
  transition:color .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease),box-shadow .18s var(--ease);
}
.filter-chip:hover{color:var(--text);border-color:var(--line-strong)}
.filter-chip.is-on{
  color:#04131A;font-weight:600;
  background:linear-gradient(135deg,var(--primary),var(--primary-2));
  border-color:transparent;
  box-shadow:var(--glow-primary);
}

/* ============ 编号横向列表 ============ */
.event-list{margin-top:8px}
.event-row{
  display:grid;
  grid-template-columns:96px 1fr 200px;
  gap:28px;
  align-items:center;
  padding:30px 8px;
  border-bottom:1px solid var(--line);
  transition:background .18s var(--ease);
}
.event-row:hover{background:rgba(255,255,255,.03)}
.event-row[hidden]{display:none}
.event-index{
  font-size:40px;font-weight:700;line-height:1;
  color:var(--primary);
  letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;
}
.event-body h3{font-size:20px;margin-bottom:8px}
.event-body p{color:var(--muted);font-size:15px;max-width:640px}
.event-side{
  display:flex;align-items:center;justify-content:flex-end;gap:16px;
  font-size:13px;color:var(--muted);text-align:right;
}
.event-time{white-space:nowrap}
.event-row .arrow{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:50%;
  border:1px solid var(--line-strong);
  color:var(--muted);
  transition:transform .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.event-row:hover .arrow{transform:translateX(4px);color:var(--primary);border-color:var(--primary)}
.event-divider{height:1px;background:linear-gradient(90deg,rgba(22,224,161,.4),rgba(22,224,161,0));margin:18px 0}
.glass-tip{
  margin:24px 0;
  padding:26px 28px;
  border-radius:var(--r-panel);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.glass-tip strong{display:block;font-size:17px;margin-bottom:8px}
.glass-tip p{color:var(--muted);font-size:15px}

/* ============ 步骤 ============ */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;counter-reset:step}
.step{
  position:relative;
  padding:30px 26px;
  border-radius:var(--r-panel);
  background:var(--bg-2);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.step-num{
  display:block;
  font-size:15px;font-weight:700;color:var(--primary);
  letter-spacing:.08em;margin-bottom:16px;
}
.step h3{font-size:19px;margin-bottom:10px}
.step p{color:var(--muted);font-size:15px}
.step::after{
  content:"";position:absolute;left:26px;right:26px;bottom:0;height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--primary),rgba(61,139,255,0));
  opacity:.6;
}
.progress-line{
  height:4px;border-radius:2px;
  background:rgba(255,255,255,.08);
  overflow:hidden;margin-bottom:40px;
}
.progress-line i{display:block;height:100%;width:66%;border-radius:2px;background:linear-gradient(90deg,var(--primary),var(--primary-2));box-shadow:var(--glow-primary)}

/* ============ 清单 ============ */
.check-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px 32px}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:16px 0;border-bottom:1px solid var(--line);
  color:var(--muted);font-size:15px;
}
.check-list li::before{
  content:"";flex-shrink:0;
  width:8px;height:8px;border-radius:50%;margin-top:9px;
  background:var(--primary);box-shadow:var(--glow-primary);
}

/* ============ FAQ ============ */
.faq{max-width:900px;margin:0 auto;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0 22px 18px;
  text-align:left;
  font-size:17px;font-weight:600;
  position:relative;
  transition:color .18s var(--ease);
}
.faq-q::before{
  content:"";position:absolute;left:0;top:26px;bottom:26px;width:2px;
  border-radius:2px;background:var(--primary);opacity:.7;
}
.faq-q:hover{color:var(--primary)}
.faq-icon{
  flex-shrink:0;
  width:24px;height:24px;
  display:flex;align-items:center;justify-content:center;
  font-size:20px;font-weight:400;color:var(--primary);
  transition:transform .2s var(--ease);
}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .25s var(--ease);
}
.faq-a p{padding:0 40px 24px 18px;color:var(--muted);font-size:15px;line-height:1.9}

/* ============ CTA ============ */
.cta-section{
  position:relative;
  padding:96px 0;
  background:linear-gradient(160deg,#070A12,#0E1626);
  border-top:1px solid var(--line);
  overflow:hidden;
  text-align:center;
}
.cta-section::after{
  content:"";position:absolute;top:-60%;left:-10%;
  width:46%;height:200%;
  background:linear-gradient(90deg,rgba(22,224,161,.12),rgba(22,224,161,0));
  transform:skewX(-18deg);
  pointer-events:none;
}
.cta-inner{max-width:680px;margin:0 auto}
.cta-inner h2{font-size:32px;margin-bottom:16px}
.cta-inner p{color:var(--muted);margin-bottom:32px}
.cta-actions{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
.cta-note{margin-top:22px;font-size:13px;color:#5A6678}

/* ============ 底部固定转化条 ============ */
.convert-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-top:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
  height:64px;
  display:flex;align-items:center;
  transition:transform .25s var(--ease),opacity .25s var(--ease);
}
.convert-bar.is-hidden{transform:translateY(110%);opacity:0;pointer-events:none}
.convert-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;width:100%}
.convert-inner p{font-size:14px;color:var(--muted)}
.convert-close{
  width:32px;height:32px;border-radius:50%;
  border:1px solid var(--line);
  color:var(--muted);font-size:16px;line-height:1;
  display:flex;align-items:center;justify-content:center;
  flex-shrink:0;
}
.convert-close:hover{color:var(--primary);border-color:var(--primary)}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--bg-2);
  border-top:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
  padding:72px 0 32px;
  position:relative;z-index:1;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-col h4{font-size:15px;margin-bottom:18px;color:var(--text)}
.footer-col a{display:block;color:var(--muted);font-size:14px;padding:6px 0;transition:color .18s var(--ease),transform .18s var(--ease)}
.footer-col a:hover{color:var(--primary);transform:translateX(3px)}
.footer-col p{color:var(--muted);font-size:14px;margin-top:8px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:700;margin-bottom:14px}
.footer-col:first-child p{margin-top:0;max-width:340px}
.footer-bottom{
  margin-top:48px;padding-top:24px;
  border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:13px;color:#5A6678;flex-wrap:wrap;
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .event-row{grid-template-columns:80px 1fr 170px;gap:22px}
  .event-index{font-size:34px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
}
@media (max-width:1023px){
  .main-nav{display:none}
  .menu-toggle{display:flex}
  .header-actions .btn{display:none}
  .page-hero{margin-top:88px}
  .page-hero-inner{flex-direction:column;align-items:flex-start;gap:28px;padding:48px 24px}
  .hero-facts{gap:28px}
  .fact{text-align:left}
  .section{padding:72px 0}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .grid-2{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .event-row{grid-template-columns:64px 1fr;gap:18px;align-items:flex-start}
  .event-index{font-size:30px}
  .event-side{grid-column:2;justify-content:flex-start;text-align:left}
}
@media (max-width:767px){
  body{font-size:15.5px;padding-bottom:72px}
  .container{padding:0 18px}
  .header-inner{height:72px}
  .site-header.is-stuck .header-inner{height:60px}
  .brand{font-size:17px}
  .page-hero{margin-top:72px;min-height:0}
  .page-hero h1{font-size:30px}
  .hero-lead{font-size:15px}
  .section{padding:56px 0}
  .section-title{font-size:24px}
  .section-head.split{flex-direction:column;align-items:flex-start}
  .stat-item{padding:22px 18px}
  .stat-item strong{font-size:28px}
  .event-row{padding:24px 0}
  .event-body h3{font-size:18px}
  .check-list{grid-template-columns:1fr}
  .faq-q{font-size:16px;padding-right:0}
  .faq-a p{padding-right:20px}
  .cta-section{padding:64px 0}
  .cta-inner h2{font-size:24px}
  .cta-actions .btn{width:100%}
  .convert-bar{height:72px}
  .convert-inner p{font-size:13px;line-height:1.5}
  .convert-inner{gap:12px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{padding:56px 0 28px}
  .footer-bottom{margin-top:32px}
}
@media (max-width:420px){
  .page-hero h1{font-size:26px}
  .fact-num{font-size:22px}
  .event-index{font-size:24px}
  .media-body{padding:20px 18px 22px}
  .step{padding:24px 18px}
}