/* roulang page: index */
:root{
  --bg-0:#060B14;
  --bg-1:#0A1322;
  --bg-2:#0E1A2E;
  --glass-a:rgba(14,24,42,.72);
  --glass-b:rgba(8,16,30,.86);
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --accent:#14E0C4;
  --accent-2:#FF7A2F;
  --violet:#5B8CFF;
  --ok:#2BD97C;
  --warn:#FFC857;
  --danger:#FF5C5C;
  --text:#F2F7FF;
  --text-2:#A9BCD4;
  --text-3:#6E809A;
  --r-card:20px;
  --r-btn:14px;
  --r-pill:999px;
  --shadow-card:0 20px 60px rgba(0,0,0,.55), 0 0 0 1px rgba(20,224,196,.12);
  --shadow-glow:0 0 24px rgba(20,224,196,.35);
  --maxw:1360px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text);
  font-family:"HarmonyOS Sans SC","MiSans","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  font-weight:400;
  line-height:1.9;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  background:
    radial-gradient(900px 620px at 10% -8%, rgba(91,140,255,.20), transparent 62%),
    radial-gradient(760px 520px at 90% 6%, rgba(20,224,196,.14), transparent 64%),
    radial-gradient(820px 700px at 48% 112%, rgba(255,122,47,.10), transparent 62%),
    var(--bg-0);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .25s ease,border-color .25s ease,background-color .25s ease}
a:hover{color:var(--accent)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em}
h1{font-size:clamp(34px,5vw,64px);line-height:1.15}
h2{font-size:clamp(26px,3.2vw,40px);line-height:1.2}
h3{font-size:22px;line-height:1.3;font-weight:700}
p{margin:0 0 1em}
ul{margin:0;padding:0;list-style:none}
::selection{background:rgba(20,224,196,.3);color:#fff}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}

.container-site{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:104px 0;position:relative}
.section-tight{padding:72px 0}
.section-head{max-width:760px;margin-bottom:48px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.12em;
  color:var(--accent);text-transform:uppercase;
  background:rgba(20,224,196,.08);
  border:1px solid rgba(20,224,196,.22);
  padding:6px 14px;border-radius:var(--r-pill);margin-bottom:18px;
}
.section-head p{color:var(--text-2);font-size:16.5px;margin-top:16px;margin-bottom:0}
.glass{
  background:linear-gradient(160deg,var(--glass-a),var(--glass-b));
  border:1px solid var(--line);
  border-radius:var(--r-card);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
}

/* ---------- 悬浮胶囊导航 ---------- */
.site-header{position:fixed;top:14px;left:0;right:0;z-index:1040;pointer-events:none}
.site-header .container-site{pointer-events:auto}
.nav-shell{
  display:flex;align-items:center;gap:18px;
  padding:10px 14px 10px 20px;
  border-radius:var(--r-pill);
  background:rgba(10,19,34,.66);
  border:1px solid var(--line);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  transition:background .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.site-header.is-scrolled .nav-shell{
  background:rgba(7,13,24,.92);
  border-color:var(--line-strong);
  box-shadow:0 18px 44px rgba(0,0,0,.5);
}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--accent),var(--violet));
  box-shadow:var(--shadow-glow);
  color:#04121A;font-size:17px;
}
.brand-text{font-size:17px;font-weight:800;letter-spacing:.01em;white-space:nowrap}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:14px}
.nav-link{
  position:relative;display:inline-block;
  padding:9px 16px;border-radius:var(--r-pill);
  font-size:15px;font-weight:500;color:var(--text-2);
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-link.active{color:var(--accent);background:rgba(20,224,196,.10)}
.nav-link.active::after{
  content:"";position:absolute;left:50%;bottom:2px;
  width:16px;height:2px;border-radius:2px;transform:translateX(-50%);
  background:var(--accent);box-shadow:0 0 10px var(--accent);
}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.btn-nav-cta{
  padding:10px 22px;border-radius:var(--r-pill);
  font-size:14.5px;font-weight:700;color:#04121A;
  background:linear-gradient(135deg,var(--accent),var(--violet));
  box-shadow:var(--shadow-glow);
  transition:transform .2s ease,filter .2s ease,box-shadow .2s ease;
}
.btn-nav-cta:hover{color:#04121A;transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 32px rgba(20,224,196,.55)}
.btn-nav-cta:active{transform:translateY(0)}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.06);border:1px solid var(--line);
  color:var(--text);font-size:16px;cursor:pointer;
}
.nav-toggle:hover{border-color:var(--accent);color:var(--accent)}
.nav-panel{
  display:none;
  margin-top:10px;padding:16px;
  border-radius:22px;
  background:rgba(8,16,30,.94);
  border:1px solid var(--line-strong);
  backdrop-filter:blur(20px);
  box-shadow:0 26px 60px rgba(0,0,0,.6);
}
.nav-panel.open{display:block;animation:panelIn .22s ease}
@keyframes panelIn{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}
.nav-panel a{
  display:flex;align-items:center;justify-content:space-between;
  padding:13px 16px;border-radius:14px;font-size:15.5px;color:var(--text-2);
}
.nav-panel a:hover,.nav-panel a.active{background:rgba(20,224,196,.10);color:var(--accent)}
.nav-panel .panel-cta{
  margin-top:10px;justify-content:center;color:#04121A;font-weight:700;
  background:linear-gradient(135deg,var(--accent),var(--violet));
}

/* ---------- 按钮 ---------- */
.btn-brand,.btn-download,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:15px 30px;border-radius:var(--r-pill);
  font-size:16px;font-weight:700;cursor:pointer;border:1px solid transparent;
  transition:transform .22s ease,filter .22s ease,box-shadow .22s ease,background-color .22s ease,border-color .22s ease;
}
.btn-brand{background:linear-gradient(135deg,var(--accent),var(--violet));color:#04121A;box-shadow:var(--shadow-glow)}
.btn-brand:hover{color:#04121A;transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 34px rgba(20,224,196,.55)}
.btn-download{background:linear-gradient(135deg,var(--accent-2),var(--accent));color:#08131F;box-shadow:0 0 24px rgba(255,122,47,.38)}
.btn-download:hover{color:#08131F;transform:translateY(-2px);filter:brightness(1.07);box-shadow:0 0 34px rgba(255,122,47,.55)}
.btn-ghost{background:rgba(255,255,255,.04);border-color:var(--line-strong);color:var(--text)}
.btn-ghost:hover{color:var(--accent);border-color:rgba(20,224,196,.6);background:rgba(20,224,196,.08);transform:translateY(-2px)}
.btn-brand:active,.btn-download:active,.btn-ghost:active{transform:translateY(1px)}

.chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 13px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--text-2);
}
.chip-accent{background:rgba(20,224,196,.10);border-color:rgba(20,224,196,.3);color:var(--accent)}
.chip-orange{background:rgba(255,122,47,.12);border-color:rgba(255,122,47,.32);color:var(--accent-2)}
.chip-live::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent)}

/* ---------- Hero ---------- */
.hero{position:relative;padding:186px 0 96px;overflow:hidden}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.4}
.hero-mask{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,11,20,.74) 0%,rgba(6,11,20,.88) 52%,var(--bg-0) 100%);
}
.hero-inner{position:relative;z-index:1}
.hero-copy h1{margin-bottom:22px;max-width:14em}
.hero-sub{font-size:17.5px;color:var(--text-2);max-width:44em;margin-bottom:32px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:38px}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px}
.hero-stats li{
  display:flex;align-items:center;gap:9px;
  padding:9px 16px;border-radius:var(--r-pill);
  background:rgba(14,24,42,.7);border:1px solid var(--line);
  font-size:13.5px;color:var(--text-2);backdrop-filter:blur(12px);
}
.hero-stats b{color:var(--text);font-weight:700;font-variant-numeric:tabular-nums}
.hero-visual{position:relative}
.hero-card{padding:16px;border-radius:24px;box-shadow:var(--shadow-card)}
.hero-card .media-frame{height:290px;border-radius:18px}
.hero-card-body{padding:18px 6px 6px}
.hero-card-body p{color:var(--text-2);font-size:15px;margin:12px 0 0}
.hero-float{
  position:absolute;left:-18px;bottom:36px;
  padding:14px 18px;border-radius:16px;
  background:rgba(8,16,30,.92);border:1px solid rgba(20,224,196,.28);
  box-shadow:0 18px 40px rgba(0,0,0,.55);
  font-size:13px;color:var(--text-2);
}
.hero-float b{display:block;font-size:20px;color:var(--accent);font-variant-numeric:tabular-nums}

/* ---------- 媒体占位 ---------- */
.media-frame{
  position:relative;overflow:hidden;border-radius:16px;
  background:linear-gradient(135deg,#0E1A2E 0%,#060B14 100%);
  border:1px solid var(--line);
}
.media-frame img{position:relative;z-index:1;width:100%;height:100%;object-fit:cover;transition:transform .55s ease}
.media-frame .media-fallback{
  position:absolute;inset:0;display:grid;place-items:center;
  color:rgba(169,188,212,.45);font-weight:800;font-size:19px;letter-spacing:.16em;
}
.img-fail{opacity:0}

/* ---------- 价值锚点条 ---------- */
.anchor-bar{
  display:flex;flex-wrap:wrap;gap:14px;justify-content:center;
  padding:26px;border-radius:26px;
}
.anchor-item{
  display:flex;align-items:center;gap:12px;
  padding:13px 22px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.035);border:1px solid var(--line);
  font-size:15px;color:var(--text-2);transition:border-color .25s ease,transform .25s ease,color .25s ease;
}
.anchor-item i{color:var(--accent);font-size:16px}
.anchor-item:hover{border-color:rgba(20,224,196,.45);transform:translateY(-2px);color:var(--text)}

/* ---------- 功能价值区 ---------- */
.feature-card{
  height:100%;padding:28px;border-radius:var(--r-card);
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.feature-card:hover{transform:translateY(-4px);border-color:rgba(20,224,196,.36);box-shadow:var(--shadow-card)}
.feature-icon{
  width:48px;height:48px;border-radius:14px;display:grid;place-items:center;
  background:rgba(20,224,196,.10);border:1px solid rgba(20,224,196,.28);
  color:var(--accent);font-size:19px;margin-bottom:18px;
}
.feature-icon.orange{background:rgba(255,122,47,.12);border-color:rgba(255,122,47,.3);color:var(--accent-2)}
.feature-card h3{margin-bottom:12px}
.feature-card p{color:var(--text-2);font-size:15.5px;margin-bottom:16px}
.tick-list li{
  position:relative;padding-left:22px;color:var(--text-2);
  font-size:15px;line-height:1.95;
}
.tick-list li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:8px;height:8px;border-radius:50%;
  background:var(--accent);box-shadow:0 0 10px rgba(20,224,196,.7);
}
.feature-media{height:230px;width:100%}
.feature-wide .feature-media{height:100%;min-height:260px}
.feature-strip{
  display:flex;align-items:center;gap:22px;padding:26px 30px;border-radius:var(--r-card);
}
.feature-strip .strip-icon{
  flex-shrink:0;width:56px;height:56px;border-radius:18px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--accent),var(--violet));color:#04121A;font-size:22px;
  box-shadow:var(--shadow-glow);
}
.feature-strip p{margin:6px 0 0;color:var(--text-2);font-size:15.5px}

/* ---------- 轮播 ---------- */
.carousel-frame{padding:20px;border-radius:24px}
#shotCarousel .carousel-item img{width:100%;height:auto}
#shotCarousel .shot-media{height:430px;border-radius:18px}
#shotCarousel .carousel-caption{
  position:static;padding:18px 6px 0;text-align:left;color:var(--text-2);font-size:15.5px;
}
#shotCarousel .carousel-caption strong{color:var(--text);font-weight:700;display:block;margin-bottom:6px;font-size:16.5px}
.carousel-btn{
  width:48px;height:48px;border-radius:50%;
  background:rgba(8,16,30,.75);border:1px solid var(--line-strong);
  color:var(--text);display:grid;place-items:center;opacity:1;
  backdrop-filter:blur(10px);transition:border-color .25s ease,color .25s ease,transform .25s ease;
}
.carousel-btn:hover{border-color:var(--accent);color:var(--accent);transform:scale(1.06)}
.carousel-control-prev,.carousel-control-next{width:auto;opacity:1}
.carousel-control-prev{left:34px}
.carousel-control-next{right:34px}
#shotCarousel .carousel-indicators{
  position:static;margin:22px 0 0;gap:12px;justify-content:center;flex-wrap:wrap;
}
#shotCarousel .carousel-indicators [data-bs-target]{
  width:92px;height:56px;margin:0;border-radius:12px;border:1px solid var(--line);
  background-color:#0A1322;background-size:cover;background-position:center;
  opacity:.42;text-indent:-9999px;overflow:hidden;transition:opacity .25s ease,box-shadow .25s ease;
}
#shotCarousel .carousel-indicators .active{opacity:1;box-shadow:0 0 0 2px var(--accent),0 0 18px rgba(20,224,196,.5)}

/* ---------- 系统要求 ---------- */
.req-tabs{border:0;gap:10px;margin-bottom:28px;flex-wrap:wrap}
.req-tabs .nav-link{
  border:1px solid var(--line);border-radius:var(--r-pill);
  background:rgba(255,255,255,.035);color:var(--text-2);
  padding:11px 24px;font-size:15px;font-weight:600;
  display:inline-flex;align-items:center;gap:9px;
  transition:all .25s ease;
}
.req-tabs .nav-link:hover{border-color:rgba(20,224,196,.45);color:var(--text)}
.req-tabs .nav-link.active{
  background:linear-gradient(135deg,var(--accent),var(--violet));
  color:#04121A;border-color:transparent;box-shadow:var(--shadow-glow);
}
.req-card{padding:26px;height:100%;border-radius:var(--r-card)}
.req-card h3{font-size:18px;margin-bottom:18px;display:flex;align-items:center;gap:10px}
.req-card h3 i{color:var(--accent)}
.req-row{
  display:flex;justify-content:space-between;gap:18px;
  padding:12px 0;border-bottom:1px dashed var(--line);
  font-size:15px;color:var(--text-2);
}
.req-row:last-child{border-bottom:0;padding-bottom:0}
.req-row b{color:var(--text);font-weight:600;text-align:right;font-variant-numeric:tabular-nums}
.req-note{margin-top:18px;font-size:14px;color:var(--text-3)}

/* ---------- 评价墙 ---------- */
.review-columns{column-count:2;column-gap:24px}
.review-card{
  break-inside:avoid;margin-bottom:24px;padding:24px;border-radius:var(--r-card);
  transition:transform .3s ease,border-color .3s ease;
}
.review-card:hover{transform:translateY(-3px);border-color:rgba(20,224,196,.32)}
.review-top{display:flex;align-items:center;gap:14px;margin-bottom:14px}
.review-avatar{width:48px;height:48px;border-radius:50%;overflow:hidden;flex-shrink:0}
.review-name{font-weight:700;font-size:15.5px}
.review-meta{font-size:13px;color:var(--text-3)}
.stars{color:var(--accent-2);font-size:13.5px;letter-spacing:2px}
.review-card p{color:var(--text-2);font-size:15px;margin:12px 0 14px}
.review-foot{display:flex;align-items:center;justify-content:space-between;gap:12px}

/* ---------- 下载区 ---------- */
.download-panel{
  padding:44px;border-radius:28px;
  background:linear-gradient(160deg,rgba(20,224,196,.10),rgba(91,140,255,.08) 42%,rgba(8,16,30,.9));
  border:1px solid rgba(20,224,196,.22);
  box-shadow:0 26px 70px rgba(0,0,0,.6);
}
.dl-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.dl-btn{
  display:flex;align-items:center;gap:14px;
  padding:16px 20px;border-radius:var(--r-btn);
  background:rgba(255,255,255,.05);border:1px solid var(--line-strong);
  transition:transform .25s ease,border-color .25s ease,background-color .25s ease,box-shadow .25s ease;
}
.dl-btn:hover{transform:translateY(-3px);border-color:rgba(20,224,196,.55);background:rgba(20,224,196,.09);box-shadow:var(--shadow-glow)}
.dl-btn i{font-size:22px;color:var(--accent);width:26px;text-align:center}
.dl-btn.primary{
  background:linear-gradient(135deg,var(--accent-2),var(--accent));
  border-color:transparent;color:#08131F;
  box-shadow:0 0 24px rgba(255,122,47,.36);
}
.dl-btn.primary i{color:#08131F}
.dl-btn.primary:hover{background:linear-gradient(135deg,var(--accent-2),var(--accent));color:#08131F;box-shadow:0 0 34px rgba(255,122,47,.6)}
.dl-btn strong{display:block;font-size:15.5px;font-weight:700}
.dl-btn span{display:block;font-size:13px;color:var(--text-2);margin-top:2px}
.dl-btn.primary span{color:rgba(8,19,31,.75)}
.qr-box{background:#fff;border-radius:18px;padding:12px;display:inline-block;line-height:0}
.qr-caption{font-size:13.5px;color:var(--text-2);margin-top:12px;text-align:center}
.safe-note{font-size:13px;color:var(--text-3);margin-top:16px;display:flex;align-items:flex-start;gap:8px}
.safe-note i{color:var(--ok);margin-top:5px}

/* ---------- 最新信息 ---------- */
.post-card{
  height:100%;padding:16px;border-radius:var(--r-card);display:flex;flex-direction:column;
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.post-card:hover{transform:translateY(-4px);border-color:rgba(20,224,196,.38);box-shadow:var(--shadow-card)}
.post-card:hover .media-frame img{transform:scale(1.05)}
.post-card .media-frame{height:180px;border-radius:14px;margin-bottom:18px}
.post-badge{
  position:absolute;left:12px;top:12px;z-index:2;
  padding:5px 12px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;
  background:rgba(8,16,30,.86);border:1px solid rgba(20,224,196,.34);color:var(--accent);
  backdrop-filter:blur(8px);
}
.post-card h3{font-size:17.5px;line-height:1.45;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card .post-summary{
  color:var(--text-2);font-size:14.5px;line-height:1.8;margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.post-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3);
}
.post-foot i{color:var(--accent);transition:transform .25s ease}
.post-card:hover .post-foot i{transform:translateX(4px)}
.empty-state{
  padding:64px 32px;border-radius:var(--r-card);text-align:center;
  display:flex;flex-direction:column;align-items:center;gap:14px;
}
.empty-state i{font-size:34px;color:var(--text-3)}
.empty-state strong{font-size:18px}
.empty-state p{color:var(--text-2);font-size:15px;margin:0}

/* ---------- FAQ ---------- */
.accordion-item{
  background:linear-gradient(160deg,var(--glass-a),var(--glass-b));
  border:1px solid var(--line);border-radius:16px;margin-bottom:14px;overflow:hidden;
}
.accordion-button{
  background:transparent;color:var(--text);font-size:16.5px;font-weight:600;
  padding:20px 24px;box-shadow:none;
}
.accordion-button:not(.collapsed){color:var(--accent);background:rgba(20,224,196,.06)}
.accordion-button::after{
  background-image:none;content:"\f078";
  font-family:"Font Awesome 6 Free";font-weight:900;font-size:13px;
  transition:transform .3s ease;color:var(--accent);
  display:grid;place-items:center;width:22px;height:22px;
}
.accordion-button:not(.collapsed)::after{transform:rotate(180deg)}
.accordion-button:focus{box-shadow:inset 0 0 0 2px rgba(20,224,196,.45)}
.accordion-body{padding:4px 24px 22px;color:var(--text-2);font-size:15.5px;line-height:1.9}

/* ---------- 底部 CTA ---------- */
.cta-band{
  padding:52px;border-radius:28px;text-align:center;
  background:linear-gradient(140deg,rgba(20,224,196,.12),rgba(91,140,255,.10) 46%,rgba(255,122,47,.10));
  border:1px solid rgba(20,224,196,.24);
}
.cta-band h2{margin-bottom:16px}
.cta-band p{color:var(--text-2);max-width:46em;margin:0 auto 30px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:40px;padding:64px 0 32px;
  background:linear-gradient(180deg,rgba(10,19,34,.2),rgba(6,11,20,.95));
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(20,224,196,.6),rgba(91,140,255,.5),transparent);
}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:18px}
.footer-desc{color:var(--text-2);font-size:14.5px;line-height:1.9;max-width:32em}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:18px;color:var(--text)}
.footer-links li{margin-bottom:11px}
.footer-links a{color:var(--text-2);font-size:14.5px}
.footer-links a:hover{color:var(--accent)}
.footer-dl{display:flex;flex-direction:column;gap:11px}
.footer-dl a{
  display:inline-flex;align-items:center;gap:9px;
  color:var(--text-2);font-size:14.5px;
}
.footer-dl a i{color:var(--accent);width:18px}
.footer-dl a:hover{color:var(--accent)}
.footer-bottom{
  margin-top:46px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-3)}
.footer-bottom a:hover{color:var(--accent)}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .hero{padding-top:170px}
  #shotCarousel .shot-media{height:380px}
}
@media (max-width:991px){
  .nav-menu{display:none}
  .nav-toggle{display:grid;place-items:center}
  .btn-nav-cta{display:none}
  .section{padding:76px 0}
  .hero{padding:158px 0 72px}
  .hero-copy h1{max-width:none}
  .review-columns{column-count:1}
  .dl-grid{grid-template-columns:1fr}
  .download-panel{padding:32px}
  .cta-band{padding:38px 26px}
  #shotCarousel .shot-media{height:320px}
  .hero-float{position:static;display:inline-block;margin-top:16px}
}
@media (max-width:767px){
  body{font-size:16px}
  .section{padding:60px 0}
  .section-tight{padding:46px 0}
  .section-head{margin-bottom:32px}
  .feature-media{height:200px}
  .anchor-bar{padding:18px;border-radius:20px}
  .anchor-item{width:100%;justify-content:flex-start}
  .feature-strip{flex-direction:column;align-items:flex-start;text-align:left}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:575px){
  .container-site{padding:0 18px}
  .hero{padding:140px 0 56px}
  .hero-cta{flex-direction:column;align-items:stretch}
  .hero-cta .btn-brand,.hero-cta .btn-ghost{width:100%}
  .hero-stats li{width:100%}
  .hero-card .media-frame{height:210px}
  #shotCarousel .shot-media{height:210px}
  .carousel-control-prev{left:12px}
  .carousel-control-next{right:12px}
  .download-panel{padding:24px}
  .cta-band{padding:30px 20px}
  .accordion-button{font-size:15.5px;padding:16px 18px}
  .accordion-body{padding:2px 18px 18px}
  .dl-btn{padding:14px 16px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category1 */
:root{
  --bg-0:#060B14;
  --bg-1:#0A1322;
  --bg-2:#0E1A2E;
  --glass-1:rgba(14,24,42,.72);
  --glass-2:rgba(8,16,30,.86);
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --cyan:#14E0C4;
  --orange:#FF7A2F;
  --violet:#5B8CFF;
  --text:#F2F7FF;
  --text-2:#A9BCD4;
  --text-3:#6E809A;
  --ok:#2BD97C;
  --warn:#FFC857;
  --err:#FF5C5C;
  --r-card:20px;
  --r-btn:13px;
  --r-img:16px;
  --r-pill:999px;
  --shadow:0 20px 60px rgba(0,0,0,.55);
  --glow:0 0 0 1px rgba(20,224,196,.12),0 0 26px rgba(20,224,196,.28);
  --maxw:1360px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:
    radial-gradient(900px 520px at 12% -8%,rgba(91,140,255,.16),transparent 62%),
    radial-gradient(760px 480px at 88% 4%,rgba(20,224,196,.12),transparent 60%),
    var(--bg-0);
  color:var(--text);
  font-family:"HarmonyOS Sans SC","MiSans","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.9;
  font-weight:400;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .22s ease,opacity .22s ease;}
a:hover{color:var(--cyan);}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:.2px;color:var(--text);}
h1{font-size:clamp(34px,5vw,58px);line-height:1.15;font-weight:900;}
h2{font-size:clamp(26px,3.2vw,38px);line-height:1.2;}
h3{font-size:clamp(19px,2vw,23px);line-height:1.3;}
p{margin:0 0 1.1em;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px;}
.container-site{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 22px;}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  padding:16px 0;
  transition:padding .3s ease,background .3s ease,backdrop-filter .3s ease,border-color .3s ease;
  border-bottom:1px solid transparent;
}
.site-header.is-stuck{
  padding:10px 0;
  background:rgba(6,11,20,.82);
  backdrop-filter:blur(16px);
  border-bottom-color:var(--line);
}
.nav-shell{
  display:flex;align-items:center;gap:20px;
  padding:10px 12px 10px 18px;
  border-radius:var(--r-pill);
  background:linear-gradient(120deg,rgba(14,26,46,.86),rgba(8,16,30,.7));
  border:1px solid rgba(255,255,255,.1);
  box-shadow:0 16px 42px rgba(0,0,0,.45);
  backdrop-filter:blur(14px);
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:36px;height:36px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(135deg,var(--cyan),var(--violet));
  color:#04121A;font-size:16px;
  box-shadow:0 0 20px rgba(20,224,196,.4);
}
.brand-text{font-weight:800;font-size:17px;letter-spacing:.4px;white-space:nowrap;}
.nav-menu{display:flex;align-items:center;gap:6px;margin-left:8px;flex:1;}
.nav-link{
  position:relative;
  display:inline-block;
  padding:9px 16px;
  border-radius:var(--r-pill);
  font-size:15px;font-weight:500;color:var(--text-2);
  transition:color .22s ease,background .22s ease;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:4px;transform:translateX(-50%);
  width:0;height:2px;border-radius:2px;background:var(--cyan);
  transition:width .24s ease;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05);}
.nav-link:hover::after{width:20px;}
.nav-link.active{color:var(--cyan);background:rgba(20,224,196,.1);}
.nav-link.active::after{width:20px;}
.nav-actions{display:flex;align-items:center;gap:10px;}
.btn-nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  height:42px;padding:0 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;color:#04121A;
  background:linear-gradient(135deg,var(--cyan),#7CF0DC 55%,var(--orange));
  box-shadow:0 0 24px rgba(20,224,196,.35);
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
}
.btn-nav-cta:hover{color:#04121A;transform:translateY(-2px);filter:brightness(1.07);box-shadow:0 0 34px rgba(20,224,196,.55);}
.btn-nav-cta:active{transform:translateY(0);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:50%;
  border:1px solid var(--line-strong);background:rgba(255,255,255,.06);
  color:var(--text);font-size:16px;cursor:pointer;
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan);}
.nav-panel{
  display:none;
  margin-top:12px;padding:14px;
  border-radius:20px;
  background:rgba(8,16,30,.94);
  border:1px solid var(--line-strong);
  backdrop-filter:blur(16px);
  box-shadow:var(--shadow);
}
.nav-panel.is-open{display:block;}
.nav-panel a{
  display:flex;align-items:center;justify-content:space-between;
  padding:13px 16px;border-radius:14px;
  font-size:15.5px;font-weight:500;color:var(--text-2);
}
.nav-panel a:hover{background:rgba(20,224,196,.1);color:var(--cyan);}
.nav-panel .panel-cta{
  margin-top:8px;justify-content:center;
  background:linear-gradient(135deg,var(--cyan),var(--orange));
  color:#04121A;font-weight:700;
}

/* ============ 通用组件 ============ */
.btn-main,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:52px;padding:0 28px;border-radius:var(--r-btn);
  font-size:16px;font-weight:700;cursor:pointer;border:1px solid transparent;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
}
.btn-main{
  color:#04121A;
  background:linear-gradient(135deg,var(--cyan) 0%,#5BF0D8 45%,var(--orange) 100%);
  box-shadow:0 0 24px rgba(20,224,196,.35);
}
.btn-main:hover{color:#04121A;transform:translateY(-2px);box-shadow:0 0 36px rgba(20,224,196,.6);filter:brightness(1.06);}
.btn-main:active{transform:translateY(1px);}
.btn-ghost{
  color:var(--text);background:rgba(255,255,255,.05);border-color:var(--line-strong);
}
.btn-ghost:hover{color:var(--cyan);border-color:rgba(20,224,196,.6);background:rgba(20,224,196,.08);transform:translateY(-2px);}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;letter-spacing:.3px;
  background:rgba(20,224,196,.12);color:var(--cyan);border:1px solid rgba(20,224,196,.28);
}
.tag--orange{background:rgba(255,122,47,.13);color:var(--orange);border-color:rgba(255,122,47,.3);}
.tag--violet{background:rgba(91,140,255,.14);color:#9DB6FF;border-color:rgba(91,140,255,.3);}
.glass{
  background:linear-gradient(150deg,var(--glass-1),var(--glass-2));
  border:1px solid var(--line-strong);
  border-radius:var(--r-card);
  backdrop-filter:blur(12px);
}
.sec{padding:84px 0;}
.sec-head{max-width:760px;margin-bottom:44px;}
.sec-head p{color:var(--text-2);margin:14px 0 0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:2px;color:var(--cyan);
  text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--cyan);border-radius:2px;}
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease;}
.reveal.is-in{opacity:1;transform:none;}
.img-wrap{
  position:relative;overflow:hidden;border-radius:var(--r-img);
  background:linear-gradient(140deg,#0E1A2E,#060B14);
  border:1px solid var(--line);
}
.img-wrap img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.img-fallback{
  position:absolute;inset:0;display:grid;place-items:center;
  background:linear-gradient(140deg,#0E1A2E,#060B14 70%);
  color:var(--cyan);font-size:30px;font-weight:900;letter-spacing:2px;
}

/* ============ 分类页 Hero ============ */
.cat-hero{
  position:relative;
  margin-top:82px;
  padding:76px 0 66px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.cat-hero__bg{
  position:absolute;inset:0;
  background-image:linear-gradient(100deg,rgba(6,11,20,.94) 8%,rgba(6,11,20,.7) 55%,rgba(10,19,34,.9)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  z-index:0;
}
.cat-hero__inner{position:relative;z-index:1;max-width:900px;}
.cat-hero h1{margin:16px 0 18px;}
.cat-hero h1 span{
  background:linear-gradient(120deg,var(--cyan),#9DB6FF 70%,var(--orange));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.cat-hero p{color:var(--text-2);font-size:17px;max-width:760px;}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13.5px;color:var(--text-3);
}
.crumb a{color:var(--text-3);}
.crumb a:hover{color:var(--cyan);}
.crumb i{font-size:10px;color:#3F526B;}
.crumb .current{color:var(--text-2);}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.stat-pill{
  display:flex;align-items:center;gap:10px;
  padding:10px 18px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.05);border:1px solid var(--line-strong);
  font-size:13.5px;color:var(--text-2);
}
.stat-pill b{
  color:var(--text);font-size:15px;
  font-variant-numeric:tabular-nums;
}

/* ============ 左侧粘性目录 + 右侧内容 ============ */
.layout-flex{
  display:grid;
  grid-template-columns:280px minmax(0,1fr);
  gap:48px;
  align-items:start;
}
.toc{
  position:sticky;top:104px;
  padding:22px;
  border-radius:var(--r-card);
  background:linear-gradient(160deg,rgba(14,24,42,.8),rgba(8,16,30,.9));
  border:1px solid var(--line-strong);
  backdrop-filter:blur(12px);
}
.toc h3{font-size:15px;color:var(--text-2);font-weight:700;letter-spacing:1px;margin-bottom:14px;}
.toc ol{margin:0;padding:0;list-style:none;counter-reset:toc;}
.toc a{
  display:flex;align-items:center;gap:10px;
  padding:10px 12px;border-radius:12px;
  font-size:14.5px;color:var(--text-2);
  border-left:2px solid transparent;
  transition:all .22s ease;
}
.toc a:hover{background:rgba(255,255,255,.05);color:var(--text);}
.toc a.is-active{
  background:rgba(20,224,196,.1);color:var(--cyan);
  border-left-color:var(--cyan);
}
.toc-num{
  display:inline-grid;place-items:center;
  width:22px;height:22px;border-radius:7px;flex:none;
  font-size:12px;font-weight:700;
  background:rgba(255,255,255,.07);color:var(--text-3);
  font-variant-numeric:tabular-nums;
}
.toc a.is-active .toc-num{background:rgba(20,224,196,.2);color:var(--cyan);}
.toc-foot{margin-top:18px;padding-top:18px;border-top:1px solid var(--line);}
.toc-foot .btn-main{width:100%;height:44px;font-size:14.5px;padding:0 14px;}

.feat-list{display:flex;flex-direction:column;gap:56px;}
.feat{
  padding:30px;
  border-radius:var(--r-card);
  background:linear-gradient(150deg,rgba(14,24,42,.62),rgba(8,16,30,.8));
  border:1px solid var(--line);
  transition:border-color .3s ease,box-shadow .3s ease,transform .3s ease;
}
.feat:hover{border-color:rgba(20,224,196,.34);box-shadow:var(--shadow);transform:translateY(-3px);}
.feat-head{display:flex;align-items:flex-start;gap:16px;margin-bottom:16px;}
.feat-icon{
  width:50px;height:50px;border-radius:15px;flex:none;
  display:grid;place-items:center;font-size:19px;
  background:linear-gradient(140deg,rgba(20,224,196,.2),rgba(91,140,255,.16));
  border:1px solid rgba(20,224,196,.3);
  color:var(--cyan);
}
.feat-head h2{font-size:clamp(21px,2.3vw,27px);}
.feat-head p{margin:6px 0 0;color:var(--text-3);font-size:14px;}
.feat > p{color:var(--text-2);margin-bottom:20px;}
.feat-media{
  border-radius:var(--r-img);overflow:hidden;
  border:1px solid var(--line);
  aspect-ratio:16/9;
  margin-bottom:22px;
}
.feat-media img{width:100%;height:100%;object-fit:cover;}
.feat-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.point{
  display:flex;gap:11px;
  padding:14px 16px;border-radius:14px;
  background:rgba(255,255,255,.035);
  border:1px solid var(--line);
  font-size:14.5px;color:var(--text-2);
}
.point i{color:var(--cyan);margin-top:5px;font-size:13px;flex:none;}
.point b{display:block;color:var(--text);font-size:15px;font-weight:700;margin-bottom:2px;}

/* ============ 下载区 ============ */
.dl-band{
  padding:36px;
  border-radius:var(--r-card);
  background:
    radial-gradient(600px 300px at 12% 0%,rgba(20,224,196,.16),transparent 62%),
    radial-gradient(520px 280px at 92% 100%,rgba(255,122,47,.14),transparent 60%),
    linear-gradient(150deg,var(--glass-1),var(--glass-2));
  border:1px solid var(--line-strong);
}
.dl-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;}
.dl-btn{
  display:flex;align-items:center;gap:14px;
  padding:16px 20px;border-radius:var(--r-btn);
  background:rgba(255,255,255,.05);
  border:1px solid var(--line-strong);
  transition:all .24s ease;
}
.dl-btn i{font-size:22px;color:var(--cyan);flex:none;}
.dl-btn span{display:block;font-size:15.5px;font-weight:700;color:var(--text);}
.dl-btn small{color:var(--text-3);font-size:12.5px;}
.dl-btn:hover{transform:translateY(-3px);border-color:rgba(20,224,196,.6);background:rgba(20,224,196,.08);}
.dl-btn.primary{
  background:linear-gradient(135deg,rgba(20,224,196,.9),rgba(255,122,47,.85));
  border-color:transparent;
  box-shadow:0 0 26px rgba(20,224,196,.35);
}
.dl-btn.primary i,.dl-btn.primary span{color:#04121A;}
.dl-btn.primary small{color:rgba(4,18,26,.72);}
.dl-aside{
  display:flex;gap:20px;align-items:center;
  padding:20px;border-radius:var(--r-card);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
}
.qr-box{
  width:124px;height:124px;flex:none;
  background:#fff;border-radius:14px;
  display:grid;place-items:center;
  padding:9px;
}
.qr-box svg{width:100%;height:100%;}
.safe-note{display:flex;align-items:center;gap:9px;font-size:13.5px;color:var(--text-3);margin-top:12px;}
.safe-note i{color:var(--ok);}

/* ============ FAQ ============ */
.faq .accordion-item{
  background:linear-gradient(150deg,rgba(14,24,42,.7),rgba(8,16,30,.86));
  border:1px solid var(--line);
  border-radius:16px !important;
  margin-bottom:14px;
  overflow:hidden;
}
.faq .accordion-button{
  background:transparent;
  color:var(--text);
  font-weight:600;
  font-size:16.5px;
  padding:20px 22px;
  box-shadow:none;
  border:0;
}
.faq .accordion-button:not(.collapsed){color:var(--cyan);background:rgba(20,224,196,.06);}
.faq .accordion-button:focus{box-shadow:none;outline:2px solid rgba(20,224,196,.5);outline-offset:-4px;}
.faq .accordion-button::after{
  filter:invert(84%) sepia(35%) saturate(1400%) hue-rotate(120deg);
  transition:transform .3s ease;
}
.faq .accordion-body{
  color:var(--text-2);
  font-size:15.5px;
  line-height:1.95;
  padding:4px 22px 22px;
}
.faq .accordion-item:hover{border-color:rgba(20,224,196,.3);}

/* ============ CTA ============ */
.cta-final{
  position:relative;overflow:hidden;
  padding:56px 40px;
  border-radius:26px;
  background:
    radial-gradient(700px 320px at 8% 0%,rgba(91,140,255,.24),transparent 62%),
    radial-gradient(600px 320px at 96% 100%,rgba(20,224,196,.2),transparent 60%),
    linear-gradient(140deg,rgba(14,26,46,.92),rgba(6,11,20,.96));
  border:1px solid var(--line-strong);
  text-align:center;
}
.cta-final h2{max-width:720px;margin:0 auto 14px;}
.cta-final p{color:var(--text-2);max-width:640px;margin:0 auto 28px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:60px;
  padding:64px 0 30px;
  background:linear-gradient(180deg,rgba(10,19,34,.6),var(--bg-0));
  border-top:1px solid transparent;
  border-image:linear-gradient(90deg,transparent,rgba(20,224,196,.6),rgba(91,140,255,.5),transparent) 1;
  position:relative;
}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px;}
.footer-brand .brand-text{font-size:18px;font-weight:800;}
.footer-desc{color:var(--text-3);font-size:14px;line-height:1.85;max-width:340px;}
.site-footer h4{font-size:15px;font-weight:700;margin-bottom:18px;color:var(--text);letter-spacing:.6px;}
.footer-links li{margin-bottom:11px;}
.footer-links a{font-size:14.5px;color:var(--text-2);}
.footer-links a:hover{color:var(--cyan);}
.footer-dl{display:flex;flex-direction:column;gap:11px;}
.footer-dl a{
  display:flex;align-items:center;gap:10px;
  font-size:14.5px;color:var(--text-2);
}
.footer-dl a i{width:18px;text-align:center;color:var(--cyan);}
.footer-dl a:hover{color:var(--cyan);}
.footer-bottom{
  margin-top:44px;padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-3);}
.footer-bottom a:hover{color:var(--cyan);}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .layout-flex{grid-template-columns:240px minmax(0,1fr);gap:34px;}
}
@media (max-width:991px){
  .nav-menu{display:none;}
  .nav-toggle{display:grid;place-items:center;}
  .btn-nav-cta{display:none;}
  .nav-shell{justify-content:space-between;}
  .layout-flex{grid-template-columns:1fr;}
  .toc{position:static;}
  .toc ol{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px;}
  .sec{padding:64px 0;}
  .cat-hero{margin-top:78px;padding:60px 0 52px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .feat-grid{grid-template-columns:1fr;}
  .dl-grid{grid-template-columns:1fr;}
  .dl-aside{flex-direction:column;text-align:center;}
  .cta-final{padding:40px 22px;}
  .feat{padding:22px;}
  .sec{padding:54px 0;}
  .brand-text{font-size:15.5px;}
}
@media (max-width:520px){
  .toc ol{grid-template-columns:1fr;}
  .btn-main,.btn-ghost{width:100%;}
  .hero-stats{gap:9px;}
  .stat-pill{padding:8px 14px;font-size:13px;}
  .nav-shell{padding:8px 10px 8px 14px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: article */
:root{
  --bg-0:#060B14;
  --bg-1:#0A1322;
  --bg-2:#0E1A2E;
  --glass-1:rgba(14,24,42,.72);
  --glass-2:rgba(8,16,30,.86);
  --glass-border:rgba(255,255,255,.08);
  --accent:#14E0C4;
  --accent-dim:rgba(20,224,196,.14);
  --accent-line:rgba(20,224,196,.35);
  --energy:#FF7A2F;
  --glow:#5B8CFF;
  --text:#F2F7FF;
  --text-2:#A9BCD4;
  --text-3:#6E809A;
  --ok:#2BD97C;
  --warn:#FFC857;
  --err:#FF5C5C;
  --line:rgba(255,255,255,.08);
  --r-card:20px;
  --r-btn:13px;
  --r-pill:999px;
  --shadow-card:0 20px 60px rgba(0,0,0,.55), 0 0 0 1px rgba(20,224,196,.12);
  --shadow-soft:0 14px 38px rgba(0,0,0,.45);
  --glow-accent:0 0 24px rgba(20,224,196,.35);
  --glow-energy:0 0 26px rgba(255,122,47,.32);
  --site-width:1320px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'HarmonyOS Sans SC','MiSans','PingFang SC','Microsoft YaHei',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background-color:var(--bg-0);
  background-image:
    radial-gradient(900px 620px at 10% -8%, rgba(91,140,255,.16), transparent 62%),
    radial-gradient(820px 560px at 90% 2%, rgba(20,224,196,.12), transparent 64%),
    radial-gradient(760px 520px at 50% 108%, rgba(255,122,47,.07), transparent 66%);
  background-attachment:fixed;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color .22s ease,border-color .22s ease,background-color .22s ease;}
button{font-family:inherit;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px;}

.container-site{
  width:100%;
  max-width:var(--site-width);
  margin:0 auto;
  padding:0 22px;
}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1035;
  padding:18px 0;
  transition:padding .3s ease, background-color .3s ease;
}
.site-header .container-site{position:relative;}
.site-header.is-scrolled{padding:10px 0;}
.nav-shell{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:9px 12px 9px 16px;
  border-radius:var(--r-pill);
  border:1px solid var(--glass-border);
  background:var(--glass-1);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  box-shadow:0 14px 40px rgba(0,0,0,.42);
  transition:background-color .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.site-header.is-scrolled .nav-shell{
  background:var(--glass-2);
  border-color:rgba(20,224,196,.2);
  box-shadow:0 18px 50px rgba(0,0,0,.6), 0 0 0 1px rgba(20,224,196,.08);
}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--accent) 0%,var(--glow) 100%);
  color:#04121a;font-size:17px;
  box-shadow:0 0 20px rgba(20,224,196,.4);
}
.brand-text{
  font-size:17px;font-weight:800;letter-spacing:.4px;white-space:nowrap;
  background:linear-gradient(92deg,#FFFFFF 0%,#B9FFF3 55%,#14E0C4 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.nav-menu{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;
  display:inline-block;
  padding:9px 16px;
  border-radius:var(--r-pill);
  font-size:15px;font-weight:600;color:var(--text-2);
  transition:color .22s ease,background-color .22s ease;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:4px;
  width:0;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--accent),var(--glow));
  transform:translateX(-50%);
  transition:width .25s ease;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.04);}
.nav-link:hover::after{width:22px;}
.nav-link.active{color:var(--accent);background:var(--accent-dim);}
.nav-link.active::after{width:22px;}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.btn-nav-cta{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 22px;border-radius:var(--r-pill);
  font-size:14.5px;font-weight:700;color:#031318;
  background:linear-gradient(96deg,var(--accent) 0%,#48ECB8 45%,var(--energy) 100%);
  box-shadow:0 0 20px rgba(20,224,196,.32);
  transition:transform .22s ease,box-shadow .22s ease,filter .22s ease;
}
.btn-nav-cta:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 30px rgba(20,224,196,.5);}
.btn-nav-cta:active{transform:translateY(0);}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:14px;
  border:1px solid var(--glass-border);
  background:rgba(255,255,255,.05);
  color:var(--text);font-size:16px;
  transition:background-color .22s ease,border-color .22s ease;
}
.nav-toggle:hover{background:rgba(20,224,196,.14);border-color:var(--accent-line);color:var(--accent);}
.nav-panel{
  display:none;
  flex-direction:column;gap:4px;
  position:absolute;left:22px;right:22px;top:calc(100% + 12px);
  padding:12px;
  border-radius:20px;
  border:1px solid var(--glass-border);
  background:var(--glass-2);
  -webkit-backdrop-filter:blur(22px);
  backdrop-filter:blur(22px);
  box-shadow:var(--shadow-card);
  z-index:40;
}
.nav-panel.is-open{display:flex;}
.nav-panel a{
  display:flex;align-items:center;justify-content:space-between;
  padding:13px 16px;border-radius:14px;
  font-size:15px;font-weight:600;color:var(--text-2);
  transition:background-color .2s ease,color .2s ease;
}
.nav-panel a:hover{background:rgba(20,224,196,.12);color:var(--text);}
.nav-panel a i{font-size:12px;opacity:.6;}
.nav-panel .panel-cta{
  justify-content:center;gap:8px;margin-top:6px;
  color:#031318;font-weight:700;
  background:linear-gradient(96deg,var(--accent) 0%,#48ECB8 45%,var(--energy) 100%);
  box-shadow:0 0 20px rgba(20,224,196,.3);
}
.nav-panel .panel-cta:hover{color:#031318;background:linear-gradient(96deg,var(--accent) 0%,#48ECB8 45%,var(--energy) 100%);}

/* ============ 通用按钮 ============ */
.btn-glow{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 28px;border-radius:var(--r-btn);
  font-size:15.5px;font-weight:700;color:#031318;
  background:linear-gradient(96deg,var(--accent) 0%,#4FEFC0 42%,var(--energy) 100%);
  box-shadow:var(--glow-accent);
  transition:transform .22s ease,box-shadow .22s ease,filter .22s ease;
}
.btn-glow:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 34px rgba(20,224,196,.55);}
.btn-glow:active{transform:translateY(0);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:var(--r-btn);
  font-size:15.5px;font-weight:600;color:var(--text);
  border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.04);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  transition:transform .22s ease,border-color .22s ease,background-color .22s ease,color .22s ease;
}
.btn-ghost:hover{transform:translateY(-2px);border-color:var(--accent-line);background:rgba(20,224,196,.1);color:var(--accent);}
.btn-ghost:active{transform:translateY(0);}
.btn-mini{
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 18px;border-radius:var(--r-pill);
  font-size:14px;font-weight:600;color:var(--accent);
  border:1px solid var(--accent-line);
  background:rgba(20,224,196,.08);
  transition:background-color .22s ease,color .22s ease,transform .22s ease;
}
.btn-mini:hover{background:rgba(20,224,196,.2);color:#EAFFFB;transform:translateY(-1px);}

/* ============ 文章头部 ============ */
.article-hero{
  position:relative;
  overflow:hidden;
  padding:52px 0 58px;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(158deg,rgba(6,11,20,.95) 0%,rgba(10,19,34,.88) 46%,rgba(14,26,46,.92) 100%);
}
.article-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(20,224,196,.5),transparent);
}
.article-hero .hero-inner{position:relative;z-index:2;max-width:940px;}

.breadcrumb-nav{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13.5px;color:var(--text-3);margin-bottom:22px;
}
.breadcrumb-nav a{color:var(--text-3);}
.breadcrumb-nav a:hover{color:var(--accent);}
.breadcrumb-nav i{font-size:10px;opacity:.6;}
.breadcrumb-nav .current{
  color:var(--text-2);
  max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.article-hero h1{
  font-size:clamp(30px,4.2vw,50px);
  line-height:1.2;
  font-weight:900;
  letter-spacing:.2px;
  color:#FFFFFF;
  margin-bottom:24px;
  text-shadow:0 12px 40px rgba(0,0,0,.5);
}
.article-meta{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px 14px;
}
.meta-item{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 15px;border-radius:var(--r-pill);
  font-size:13.5px;color:var(--text-2);
  border:1px solid var(--glass-border);
  background:rgba(255,255,255,.04);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
}
.meta-item i{color:var(--accent);font-size:12.5px;}
.meta-cat{
  color:#031318;font-weight:700;border-color:transparent;
  background:linear-gradient(96deg,var(--accent),#5FE9C6);
}
.meta-cat i{color:#031318;}
.meta-actions{display:flex;gap:8px;margin-left:auto;}
.icon-btn{
  width:38px;height:38px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--glass-border);
  background:rgba(255,255,255,.04);
  color:var(--text-2);font-size:14px;
  transition:background-color .22s ease,color .22s ease,border-color .22s ease,transform .22s ease;
}
.icon-btn:hover{color:var(--accent);border-color:var(--accent-line);background:rgba(20,224,196,.12);transform:translateY(-2px);}

/* ============ 正文阅读区 ============ */
.article-main{padding:74px 0 40px;}
.article-shell{
  max-width:1000px;margin:0 auto;
  padding:0 4px;
}
.article-body{
  max-width:820px;
  margin:0 auto;
  font-size:17px;
  line-height:2;
  color:var(--text-2);
  overflow-wrap:break-word;
}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.25em;}
.article-body h2{
  position:relative;
  font-size:clamp(22px,2.6vw,30px);
  line-height:1.35;
  font-weight:800;
  color:var(--text);
  margin:2.3em 0 .85em;
  padding-left:18px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--accent),var(--glow));
  box-shadow:0 0 16px rgba(20,224,196,.45);
}
.article-body h3{
  font-size:20px;line-height:1.4;font-weight:700;color:var(--text);
  margin:1.9em 0 .65em;
}
.article-body h4{
  font-size:17px;font-weight:700;color:var(--text);margin:1.6em 0 .5em;
}
.article-body ul,.article-body ol{padding-left:1.35em;margin:0 0 1.4em;}
.article-body ul li{list-style:none;position:relative;padding-left:4px;}
.article-body ul li::before{
  content:"";position:absolute;left:-15px;top:.82em;
  width:6px;height:6px;border-radius:50%;
  background:var(--accent);box-shadow:0 0 10px rgba(20,224,196,.7);
}
.article-body ol{list-style:decimal;}
.article-body ol li{margin-bottom:.55em;}
.article-body li{margin-bottom:.55em;}
.article-body a{color:var(--accent);border-bottom:1px solid var(--accent-line);}
.article-body a:hover{color:#FFFFFF;border-color:#FFFFFF;}
.article-body strong{color:var(--text);font-weight:700;}
.article-body blockquote{
  margin:1.9em 0;padding:20px 24px;
  border-left:3px solid var(--accent);
  border-radius:0 16px 16px 0;
  background:var(--glass-1);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  color:var(--text-2);
  font-size:16.5px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  max-width:100%;height:auto;
  border-radius:14px;
  margin:1.9em auto;
  border:1px solid var(--line);
  box-shadow:var(--shadow-soft);
}
.article-body figure{margin:1.9em 0;}
.article-body figcaption{font-size:13.5px;color:var(--text-3);text-align:center;margin-top:10px;}
.article-body table{
  width:100%;border-collapse:collapse;margin:1.9em 0;font-size:15.5px;
}
.article-body th,.article-body td{
  border:1px solid var(--line);
  padding:11px 14px;text-align:left;color:var(--text-2);
}
.article-body th{background:rgba(20,224,196,.09);color:var(--text);font-weight:700;white-space:nowrap;}
.article-body tr:hover td{background:rgba(255,255,255,.02);}
.article-body code{
  padding:2px 7px;border-radius:6px;font-size:.92em;
  color:var(--accent);background:rgba(20,224,196,.1);
}
.article-body pre{
  margin:1.9em 0;padding:18px 20px;border-radius:14px;
  border:1px solid var(--line);background:var(--glass-2);
  overflow-x:auto;font-size:14.5px;line-height:1.8;
}
.article-body pre code{background:none;color:var(--text-2);padding:0;}
.article-body hr{border:0;height:1px;margin:2.4em 0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.16),transparent);}

/* ============ 空状态 ============ */
.empty-state{
  max-width:720px;margin:0 auto;text-align:center;
  padding:58px 32px;
  border-radius:var(--r-card);
  border:1px solid var(--glass-border);
  background:var(--glass-1);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  box-shadow:var(--shadow-card);
}
.empty-icon{
  width:72px;height:72px;margin:0 auto 22px;border-radius:22px;
  display:flex;align-items:center;justify-content:center;
  font-size:28px;color:var(--accent);
  background:rgba(20,224,196,.1);
  border:1px solid var(--accent-line);
}
.empty-state h2{font-size:24px;font-weight:800;color:var(--text);margin-bottom:12px;}
.empty-state p{font-size:15.5px;color:var(--text-2);margin-bottom:26px;}

/* ============ 相关推荐 ============ */
.related-section{padding:70px 0 20px;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  flex-wrap:wrap;margin-bottom:34px;
}
.section-head h2{
  font-size:clamp(23px,3vw,34px);font-weight:800;line-height:1.25;color:var(--text);
}
.section-head h2 span{
  background:linear-gradient(92deg,#FFFFFF,#9FF3E5);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.section-head p{font-size:14.5px;color:var(--text-3);margin-top:8px;}
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.related-card{
  display:flex;flex-direction:column;
  border-radius:var(--r-card);
  border:1px solid var(--glass-border);
  background:var(--glass-1);
  overflow:hidden;
  box-shadow:var(--shadow-soft);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.related-card:hover{
  transform:translateY(-6px);
  border-color:var(--accent-line);
  box-shadow:var(--shadow-card);
}
.thumb{
  position:relative;
  aspect-ratio:16/10;
  overflow:hidden;
  background:linear-gradient(145deg,var(--bg-2),var(--bg-1));
}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.related-card:hover .thumb img{transform:scale(1.06);}
.thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,11,20,.05),rgba(6,11,20,.72));
}
.thumb-fallback{background:linear-gradient(150deg,#123047,#0A1322);}
.thumb-fallback::before{
  content:"九";position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  font-size:34px;font-weight:900;color:rgba(20,224,196,.45);z-index:1;
}
.thumb .badge-cat{
  position:absolute;left:14px;top:14px;z-index:3;
  padding:5px 13px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:700;color:#031318;
  background:linear-gradient(96deg,var(--accent),#5FE9C6);
}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.card-body h3{
  font-size:17px;line-height:1.5;font-weight:700;color:var(--text);
  margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.related-card:hover .card-body h3{color:var(--accent);}
.card-body p{
  font-size:14.5px;line-height:1.85;color:var(--text-3);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
  margin-bottom:18px;
}
.card-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  padding-top:14px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.card-foot i{color:var(--accent);font-size:12px;transition:transform .25s ease;}
.related-card:hover .card-foot i{transform:translateX(4px);}

/* ============ 上一篇 / 下一篇 ============ */
.post-nav{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;margin-top:56px;
}
.post-nav-item{
  display:flex;align-items:center;gap:16px;
  padding:20px 24px;border-radius:18px;
  border:1px solid var(--glass-border);
  background:rgba(255,255,255,.03);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  transition:border-color .25s ease,background-color .25s ease,transform .25s ease;
}
.post-nav-item:hover{border-color:var(--accent-line);background:rgba(20,224,196,.08);transform:translateY(-3px);}
.post-nav-item .arrow{
  width:42px;height:42px;flex:0 0 42px;border-radius:13px;
  display:flex;align-items:center;justify-content:center;
  font-size:14px;color:var(--accent);
  background:rgba(20,224,196,.1);border:1px solid var(--accent-line);
}
.post-nav-item .txt{min-width:0;}
.post-nav-item .txt em{
  display:block;font-style:normal;font-size:12.5px;color:var(--text-3);margin-bottom:3px;
}
.post-nav-item .txt strong{
  display:block;font-size:15.5px;font-weight:700;color:var(--text);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.post-nav-item.next{flex-direction:row-reverse;text-align:right;}
.back-row{display:flex;justify-content:center;margin-top:34px;}

/* ============ 下载 CTA ============ */
.cta-band{
  margin-top:88px;
  padding:0 0 90px;
}
.cta-inner{
  position:relative;overflow:hidden;
  border-radius:28px;
  border:1px solid rgba(20,224,196,.22);
  background:linear-gradient(135deg,rgba(14,26,46,.92) 0%,rgba(8,16,30,.96) 55%,rgba(10,19,34,.94) 100%);
  box-shadow:var(--shadow-card);
  padding:52px 48px;
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  gap:40px;
  align-items:center;
}
.cta-inner::before{
  content:"";position:absolute;right:-140px;top:-140px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(20,224,196,.2),transparent 68%);
  pointer-events:none;
}
.cta-inner::after{
  content:"";position:absolute;left:-120px;bottom:-160px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,47,.14),transparent 70%);
  pointer-events:none;
}
.cta-text{position:relative;z-index:2;}
.cta-text h2{font-size:clamp(24px,3.2vw,36px);font-weight:800;line-height:1.28;margin-bottom:14px;}
.cta-text p{font-size:15.5px;line-height:1.9;color:var(--text-2);max-width:620px;margin-bottom:26px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.cta-facts{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.cta-facts li{
  padding:7px 15px;border-radius:var(--r-pill);
  font-size:13px;color:var(--text-2);
  border:1px solid var(--glass-border);background:rgba(255,255,255,.04);
}
.cta-qr{
  position:relative;z-index:2;
  text-align:center;
}
.qr-box{
  display:inline-block;
  padding:10px;border-radius:16px;
  background:#FFFFFF;
  box-shadow:0 18px 44px rgba(0,0,0,.5);
}
.qr-box svg{display:block;border-radius:6px;}
.cta-qr span{display:block;margin-top:12px;font-size:13px;color:var(--text-3);}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  background:linear-gradient(180deg,rgba(6,11,20,.4),rgba(6,11,20,.94));
  padding:72px 0 0;
  margin-top:20px;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(20,224,196,.55),rgba(91,140,255,.4),transparent);
}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:18px;}
.footer-brand .brand-mark{width:36px;height:36px;font-size:16px;}
.footer-brand .brand-text{font-size:16.5px;}
.footer-desc{font-size:14px;line-height:1.95;color:var(--text-3);max-width:330px;}
.site-footer h4{
  font-size:15px;font-weight:700;color:var(--text);margin-bottom:18px;letter-spacing:.4px;
}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:14px;color:var(--text-3);}
.footer-links a:hover{color:var(--accent);}
.footer-dl{display:flex;flex-direction:column;gap:11px;}
.footer-dl a{
  display:flex;align-items:center;gap:9px;
  font-size:14px;color:var(--text-3);
  transition:color .22s ease,transform .22s ease;
}
.footer-dl a i{width:16px;text-align:center;color:var(--text-3);transition:color .22s ease;}
.footer-dl a:hover{color:var(--accent);transform:translateX(3px);}
.footer-dl a:hover i{color:var(--accent);}
.footer-bottom{
  margin-top:56px;padding:24px 0 30px;
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
}
.footer-bottom p{font-size:13px;color:var(--text-3);}

/* ============ 滚动淡入 ============ */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease;}
.reveal.is-visible{opacity:1;transform:none;}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  :root{--site-width:1140px;}
  .cta-inner{padding:44px 36px;}
}
@media (max-width:991.98px){
  .nav-menu{display:none;}
  .btn-nav-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-panel{display:none;}
  .nav-panel.is-open{display:flex;}
  .article-hero{padding:38px 0 44px;}
  .article-main{padding:52px 0 30px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-inner{grid-template-columns:minmax(0,1fr);gap:32px;}
  .cta-qr{text-align:left;}
  .site-footer{padding-top:56px;}
}
@media (max-width:767.98px){
  body{font-size:15.5px;}
  .container-site{padding:0 16px;}
  .nav-panel{left:16px;right:16px;}
  .brand-text{font-size:15.5px;}
  .article-body{font-size:16px;line-height:1.95;}
  .article-body h2{padding-left:14px;}
  .post-nav{grid-template-columns:minmax(0,1fr);}
  .post-nav-item.next{flex-direction:row;text-align:left;}
  .meta-actions{margin-left:0;width:100%;}
  .cta-band{padding-bottom:64px;}
  .cta-inner{padding:32px 22px;border-radius:22px;}
  .cta-actions{gap:10px;}
  .cta-actions .btn-glow,.cta-actions .btn-ghost{flex:1 1 100%;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:575.98px){
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .article-hero h1{font-size:clamp(25px,7vw,32px);}
  .article-meta{gap:8px;}
  .meta-item{font-size:12.5px;padding:6px 12px;}
  .breadcrumb-nav .current{max-width:180px;}
  .empty-state{padding:40px 20px;}
  .section-head h2{font-size:22px;}
  .related-section{padding-top:50px;}
}
@media (min-width:992px){
  .nav-panel{display:none !important;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category2 */
:root{
  --bg-0:#060B14;
  --bg-1:#0A1322;
  --bg-2:#0E1A2E;
  --glass:rgba(14,24,42,.72);
  --glass-strong:rgba(8,16,30,.86);
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --accent:#14E0C4;
  --accent-dim:rgba(20,224,196,.14);
  --energy:#FF7A2F;
  --glow-blue:#5B8CFF;
  --text:#F2F7FF;
  --text-2:#A9BCD4;
  --text-3:#6E809A;
  --ok:#2BD97C;
  --warn:#FFC857;
  --err:#FF5C5C;
  --r-card:20px;
  --r-btn:13px;
  --r-pill:999px;
  --shadow-card:0 20px 60px rgba(0,0,0,.55), 0 0 0 1px rgba(20,224,196,.10);
  --shadow-glow:0 0 24px rgba(20,224,196,.35);
  --font-cn:"HarmonyOS Sans SC","MiSans","PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(900px 520px at 12% -8%, rgba(20,224,196,.13), transparent 62%),
    radial-gradient(760px 480px at 92% 4%, rgba(91,140,255,.13), transparent 60%),
    radial-gradient(680px 520px at 70% 88%, rgba(255,122,47,.07), transparent 62%);
}
a{color:var(--accent);text-decoration:none;transition:color .22s ease,opacity .22s ease;}
a:hover{color:#6ff4e2;}
img{max-width:100%;display:block;}
button{font-family:inherit;}
h1,h2,h3,h4,h5{font-weight:800;letter-spacing:.2px;color:var(--text);}
p{margin:0 0 1em;color:var(--text-2);}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px;}

.container-site{width:100%;max-width:1320px;margin:0 auto;padding:0 24px;position:relative;z-index:2;}

/* ---------- Header ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1000;
  padding:16px 0;
  transition:background .3s ease,padding .3s ease,backdrop-filter .3s ease;
}
.site-header.is-scrolled{
  background:rgba(6,11,20,.82);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  padding:10px 0;
}
.nav-shell{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:10px 14px 10px 18px;
  border-radius:var(--r-pill);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:0 14px 40px rgba(0,0,0,.45);
}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);font-weight:800;font-size:17px;white-space:nowrap;}
.brand:hover{color:var(--text);}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:linear-gradient(135deg,var(--accent),var(--glow-blue));
  color:#04121a;
  font-size:15px;
  box-shadow:0 0 18px rgba(20,224,196,.45);
}
.brand-text{letter-spacing:.4px;}
.nav-menu{display:flex;align-items:center;gap:6px;margin:0;}
.nav-link{
  display:inline-block;
  padding:9px 16px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:500;
  color:var(--text-2);
  position:relative;
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05);}
.nav-link.active{color:var(--accent);background:var(--accent-dim);}
.nav-actions{display:flex;align-items:center;gap:10px;}
.btn-nav-cta{
  display:inline-block;
  padding:10px 22px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:700;
  color:#04121a;
  background:linear-gradient(120deg,var(--accent),#4fe9c9 45%,var(--glow-blue));
  box-shadow:var(--shadow-glow);
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
}
.btn-nav-cta:hover{color:#04121a;transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 32px rgba(20,224,196,.5);}
.btn-nav-cta:active{transform:translateY(0);}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:14px;
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.05);
  color:var(--text);
  font-size:16px;
  cursor:pointer;
  transition:background .2s ease,border-color .2s ease;
}
.nav-toggle:hover{background:rgba(20,224,196,.12);border-color:rgba(20,224,196,.5);}
.nav-panel{
  display:none;
  flex-direction:column;
  gap:6px;
  margin-top:12px;
  padding:16px;
  border-radius:20px;
  background:var(--glass-strong);
  border:1px solid var(--line);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  box-shadow:0 24px 60px rgba(0,0,0,.6);
}
.nav-panel.open{display:flex;}
.nav-panel a{
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 16px;
  border-radius:14px;
  color:var(--text-2);
  font-size:16px;
  font-weight:500;
  transition:background .2s ease,color .2s ease;
}
.nav-panel a:hover{background:rgba(255,255,255,.06);color:var(--text);}
.nav-panel a i{font-size:12px;color:var(--text-3);}
.nav-panel a.panel-cta{
  justify-content:center;
  margin-top:6px;
  color:#04121a;
  font-weight:700;
  background:linear-gradient(120deg,var(--accent),var(--glow-blue));
}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  padding:172px 0 84px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-hero-bg{
  position:absolute;inset:0;
  background-image:
    linear-gradient(180deg,rgba(6,11,20,.72) 0%,rgba(6,11,20,.86) 55%,rgba(6,11,20,.96) 100%),
    linear-gradient(90deg,rgba(6,11,20,.94) 0%,rgba(10,19,34,.6) 60%,rgba(14,26,46,.45) 100%),
    url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  z-index:0;
}
.page-hero-bg::after{
  content:"";
  position:absolute;inset:0;
  background:radial-gradient(700px 380px at 18% 30%, rgba(20,224,196,.18), transparent 66%);
}
.page-hero .container-site{position:relative;z-index:2;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13.5px;color:var(--text-3);margin-bottom:22px;}
.crumb a{color:var(--text-3);}
.crumb a:hover{color:var(--accent);}
.crumb i{font-size:10px;opacity:.7;}
.crumb .current{color:var(--text-2);}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;
  border-radius:var(--r-pill);
  background:var(--accent-dim);
  border:1px solid rgba(20,224,196,.32);
  color:var(--accent);
  font-size:13.5px;
  font-weight:600;
  letter-spacing:.4px;
  margin-bottom:20px;
}
.page-hero h1{
  font-size:clamp(34px,5vw,60px);
  line-height:1.15;
  margin:0 0 20px;
  max-width:15em;
}
.page-hero h1 em{font-style:normal;color:var(--accent);}
.hero-lead{
  max-width:720px;
  font-size:17px;
  line-height:1.95;
  color:var(--text-2);
  margin-bottom:30px;
}
.hero-chips{display:flex;flex-wrap:wrap;gap:12px;}
.chip{
  display:inline-flex;align-items:center;gap:9px;
  padding:10px 18px;
  border-radius:var(--r-pill);
  background:var(--glass);
  border:1px solid var(--line);
  font-size:14px;
  color:var(--text-2);
  backdrop-filter:blur(10px);
}
.chip strong{color:var(--text);font-variant-numeric:tabular-nums;font-weight:700;}
.chip i{color:var(--accent);font-size:13px;}
.chip.energy i{color:var(--energy);}

/* ---------- Section base ---------- */
.section{padding:88px 0;position:relative;z-index:2;}
.section.tight{padding:64px 0;}
.section-head{margin-bottom:46px;}
.section-head.center{text-align:center;max-width:780px;margin-left:auto;margin-right:auto;}
.eyebrow{
  display:inline-block;
  font-size:13px;
  font-weight:700;
  letter-spacing:2.4px;
  text-transform:uppercase;
  color:var(--accent);
  margin-bottom:14px;
}
.section-title{
  font-size:clamp(26px,3.2vw,40px);
  line-height:1.2;
  margin:0 0 16px;
}
.section-sub{font-size:16.5px;color:var(--text-2);max-width:760px;margin:0;}
.section-head.center .section-sub{margin:0 auto;}

.glass-card{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}

/* ---------- Timeline ---------- */
.tl-head{
  display:flex;align-items:center;justify-content:space-between;
  flex-wrap:wrap;gap:14px;margin-bottom:30px;
}
.tl-head h2{font-size:clamp(22px,2.6vw,30px);margin:0;}
.tl-legend{display:flex;gap:10px;flex-wrap:wrap;}
.legend-pill{
  font-size:12.5px;padding:5px 13px;border-radius:var(--r-pill);
  border:1px solid var(--line);color:var(--text-3);background:rgba(255,255,255,.03);
}
.legend-pill.new{border-color:rgba(20,224,196,.4);color:var(--accent);background:var(--accent-dim);}
.legend-pill.fix{border-color:rgba(255,200,87,.35);color:var(--warn);background:rgba(255,200,87,.09);}

.timeline{position:relative;padding-left:36px;margin-top:6px;}
.timeline::before{
  content:"";position:absolute;left:11px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(180deg,rgba(20,224,196,.7),rgba(91,140,255,.28) 55%,rgba(255,255,255,0) 100%);
  border-radius:2px;
}
.tl-item{position:relative;margin-bottom:22px;}
.tl-item::before{
  content:"";position:absolute;left:-31px;top:24px;
  width:12px;height:12px;border-radius:50%;
  background:var(--bg-0);
  border:2px solid var(--accent);
  box-shadow:0 0 12px rgba(20,224,196,.6);
}
.tl-item.is-fix::before{border-color:var(--warn);box-shadow:0 0 12px rgba(255,200,87,.45);}
.tl-item.is-old::before{border-color:var(--text-3);box-shadow:none;}
.tl-body{
  padding:22px 24px;
  border-radius:18px;
  background:var(--glass);
  border:1px solid var(--line);
  transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.tl-body:hover{border-color:rgba(20,224,196,.4);transform:translateY(-3px);box-shadow:0 18px 48px rgba(0,0,0,.5),0 0 0 1px rgba(20,224,196,.16);}
.tl-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:12px;}
.ver-no{
  font-family:"SFMono-Regular",Consolas,Menlo,monospace;
  font-size:19px;font-weight:700;color:var(--text);letter-spacing:.5px;
}
.tl-date{font-size:13.5px;color:var(--text-3);font-variant-numeric:tabular-nums;}
.badge-soft{
  font-size:12.5px;font-weight:600;
  padding:4px 12px;border-radius:var(--r-pill);
  border:1px solid rgba(20,224,196,.34);
  background:var(--accent-dim);
  color:var(--accent);
}
.badge-soft.warn{border-color:rgba(255,200,87,.34);background:rgba(255,200,87,.1);color:var(--warn);}
.badge-soft.mute{border-color:var(--line-strong);background:rgba(255,255,255,.04);color:var(--text-3);}
.tl-body h3{font-size:17.5px;margin:0 0 10px;font-weight:700;}
.tl-list li{
  position:relative;
  padding-left:20px;
  font-size:15.5px;
  color:var(--text-2);
  line-height:1.85;
  margin-bottom:4px;
}
.tl-list li::before{
  content:"";position:absolute;left:2px;top:12px;
  width:7px;height:7px;border-radius:2px;
  background:var(--accent);opacity:.75;
}

/* ---------- Side download card ---------- */
.side-col{position:relative;}
.side-card{
  position:sticky;
  top:112px;
  padding:26px 24px;
  border-radius:var(--r-card);
  background:var(--glass-strong);
  border:1px solid rgba(20,224,196,.22);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(14px);
}
.side-card h3{font-size:19px;margin:0 0 6px;}
.side-card .side-sub{font-size:14px;color:var(--text-3);margin-bottom:18px;}
.side-stat{
  display:flex;justify-content:space-between;align-items:center;
  padding:11px 0;
  border-bottom:1px dashed var(--line);
  font-size:14.5px;
}
.side-stat:last-of-type{border-bottom:none;}
.side-stat span{color:var(--text-3);}
.side-stat strong{color:var(--text);font-weight:700;font-variant-numeric:tabular-nums;}
.side-actions{display:flex;flex-direction:column;gap:10px;margin-top:18px;}
.qr-box{
  margin-top:20px;
  padding:12px;
  border-radius:16px;
  background:#ffffff;
  display:flex;
  align-items:center;
  gap:14px;
}
.qr-box svg{flex:0 0 auto;display:block;border-radius:6px;}
.qr-caption{font-size:12.5px;color:#0A1322;line-height:1.6;font-weight:600;}
.qr-caption small{display:block;color:#5a6b80;font-weight:500;margin-top:2px;font-size:11.5px;}

/* ---------- Buttons ---------- */
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:14px 30px;
  border-radius:var(--r-btn);
  font-size:16px;font-weight:700;
  color:#04121a;
  background:linear-gradient(120deg,var(--accent),#4de6c6 48%,var(--glow-blue));
  border:none;
  box-shadow:var(--shadow-glow);
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
  cursor:pointer;
}
.btn-main:hover{color:#04121a;transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 36px rgba(20,224,196,.5);}
.btn-main:active{transform:translateY(1px);}
.btn-main.energy{background:linear-gradient(120deg,var(--energy),#ffb066 45%,var(--accent));box-shadow:0 0 26px rgba(255,122,47,.38);color:#1a0d03;}
.btn-main.energy:hover{color:#1a0d03;box-shadow:0 0 36px rgba(255,122,47,.5);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:13px 26px;
  border-radius:var(--r-btn);
  font-size:15.5px;font-weight:600;
  color:var(--text);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line-strong);
  transition:border-color .2s ease,background .2s ease,transform .2s ease;
}
.btn-ghost:hover{color:var(--text);border-color:rgba(20,224,196,.6);background:rgba(20,224,196,.09);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-block{width:100%;}

/* ---------- Version table ---------- */
.table-card{
  padding:8px;
  border-radius:var(--r-card);
  background:var(--glass);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
}
.table-wrap{overflow-x:auto;border-radius:16px;}
.table-wrap::-webkit-scrollbar{height:8px;}
.table-wrap::-webkit-scrollbar-thumb{background:rgba(20,224,196,.3);border-radius:8px;}
table.ver-table{width:100%;min-width:700px;border-collapse:collapse;font-size:15px;}
table.ver-table thead th{
  text-align:left;
  padding:16px 20px;
  font-size:13.5px;
  font-weight:700;
  letter-spacing:1.2px;
  color:var(--text-3);
  background:rgba(255,255,255,.03);
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
table.ver-table tbody td{
  padding:16px 20px;
  color:var(--text-2);
  border-bottom:1px solid rgba(255,255,255,.05);
  vertical-align:middle;
}
table.ver-table tbody tr:last-child td{border-bottom:none;}
table.ver-table tbody tr{transition:background .2s ease;}
table.ver-table tbody tr:hover{background:rgba(20,224,196,.045);}
table.ver-table td.strong{color:var(--text);font-weight:600;font-variant-numeric:tabular-nums;white-space:nowrap;}
.stage-dot{
  display:inline-block;width:8px;height:8px;border-radius:50%;
  background:var(--accent);margin-right:9px;box-shadow:0 0 10px rgba(20,224,196,.7);
}
.stage-dot.wait{background:var(--warn);box-shadow:0 0 10px rgba(255,200,87,.6);}
.stage-dot.over{background:var(--text-3);box-shadow:none;}

/* ---------- Info cards ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.info-card{
  display:flex;flex-direction:column;
  border-radius:var(--r-card);
  overflow:hidden;
  background:var(--glass);
  border:1px solid var(--line);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
  height:100%;
}
.info-card:hover{transform:translateY(-6px);border-color:rgba(20,224,196,.42);box-shadow:0 24px 60px rgba(0,0,0,.6),0 0 0 1px rgba(20,224,196,.2);}
.info-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:linear-gradient(135deg,#0E1A2E,#060B14);}
.info-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.info-card:hover .info-media img{transform:scale(1.06);}
.info-media .tag-float{
  position:absolute;left:14px;top:14px;
  padding:5px 13px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;
  color:var(--accent);
  background:rgba(6,11,20,.8);
  border:1px solid rgba(20,224,196,.35);
  backdrop-filter:blur(6px);
}
.info-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1;}
.info-body h3{font-size:18.5px;line-height:1.4;margin:0 0 10px;}
.info-body p{font-size:15px;line-height:1.85;color:var(--text-2);margin:0 0 16px;}
.info-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:13.5px;color:var(--text-3);
  border-top:1px solid var(--line);padding-top:14px;
}
.info-foot a{font-weight:600;display:inline-flex;align-items:center;gap:7px;}
.info-foot a i{transition:transform .25s ease;font-size:12px;}
.info-foot a:hover i{transform:translateX(4px);}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.step-card{
  padding:24px 22px;
  border-radius:18px;
  background:var(--glass);
  border:1px solid var(--line);
  position:relative;
  transition:border-color .25s ease,transform .25s ease;
}
.step-card:hover{border-color:rgba(20,224,196,.38);transform:translateY(-4px);}
.step-num{
  font-family:"SFMono-Regular",Consolas,Menlo,monospace;
  font-size:14px;font-weight:700;
  width:34px;height:34px;border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--accent-dim);
  border:1px solid rgba(20,224,196,.3);
  color:var(--accent);
  margin-bottom:16px;
}
.step-card h3{font-size:17px;margin:0 0 8px;}
.step-card p{font-size:14.5px;line-height:1.8;margin:0;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:920px;margin:0 auto;}
.accordion-item{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:16px !important;
  margin-bottom:14px;
  overflow:hidden;
  backdrop-filter:blur(10px);
  transition:border-color .25s ease;
}
.accordion-item:hover{border-color:rgba(20,224,196,.3);}
.accordion-button{
  background:transparent !important;
  color:var(--text) !important;
  font-size:16.5px;
  font-weight:600;
  padding:20px 24px;
  box-shadow:none !important;
  border-radius:16px !important;
}
.accordion-button::after{
  content:"";
  width:9px;height:9px;
  border-right:2px solid var(--text-3);
  border-bottom:2px solid var(--text-3);
  transform:rotate(45deg);
  background:none !important;
  transition:transform .3s ease,border-color .3s ease;
  margin-left:auto;
  flex:0 0 auto;
}
.accordion-button:not(.collapsed){color:var(--accent) !important;}
.accordion-button:not(.collapsed)::after{transform:rotate(-135deg);border-color:var(--accent);}
.accordion-body{
  padding:0 24px 22px;
  font-size:15.5px;
  line-height:1.9;
  color:var(--text-2);
}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:26px;
  padding:56px 48px;
  background:
    linear-gradient(120deg,rgba(20,224,196,.14),rgba(91,140,255,.12) 48%,rgba(255,122,47,.12)),
    var(--glass-strong);
  border:1px solid rgba(20,224,196,.24);
  box-shadow:var(--shadow-card);
}
.cta-band::after{
  content:"";position:absolute;right:-90px;top:-90px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(20,224,196,.28),transparent 68%);
}
.cta-band h2{font-size:clamp(24px,3vw,34px);margin:0 0 14px;}
.cta-band p{max-width:640px;margin:0 0 26px;font-size:16px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.dl-row{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:30px;}
.dl-tile{
  display:flex;align-items:center;gap:14px;
  padding:16px 18px;
  border-radius:16px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  color:var(--text);
  transition:border-color .22s ease,background .22s ease,transform .22s ease;
}
.dl-tile:hover{color:var(--text);border-color:rgba(20,224,196,.5);background:rgba(20,224,196,.08);transform:translateY(-3px);}
.dl-tile i{font-size:22px;color:var(--accent);flex:0 0 auto;}
.dl-tile .dl-name{font-size:15px;font-weight:600;display:block;line-height:1.4;}
.dl-tile .dl-size{font-size:12.5px;color:var(--text-3);font-variant-numeric:tabular-nums;}
.safe-note{
  margin-top:22px;display:flex;align-items:center;gap:10px;
  font-size:13.5px;color:var(--text-3);
}
.safe-note i{color:var(--ok);}

/* ---------- Footer ---------- */
.site-footer{
  position:relative;
  margin-top:40px;
  padding:70px 0 34px;
  background:linear-gradient(180deg,rgba(10,19,34,.4),var(--bg-0));
  z-index:2;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(20,224,196,.6),rgba(91,140,255,.4),transparent);
}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:var(--text);margin-bottom:16px;}
.footer-desc{font-size:14.5px;line-height:1.85;color:var(--text-3);max-width:340px;}
.site-footer h4{font-size:15px;font-weight:700;margin:0 0 18px;color:var(--text);letter-spacing:.4px;}
.footer-links li{margin-bottom:11px;}
.footer-links a{font-size:14.5px;color:var(--text-3);}
.footer-links a:hover{color:var(--accent);}
.footer-dl{display:flex;flex-direction:column;gap:11px;}
.footer-dl a{font-size:14.5px;color:var(--text-3);display:inline-flex;align-items:center;gap:10px;}
.footer-dl a i{width:16px;font-size:14px;color:var(--text-2);}
.footer-dl a:hover{color:var(--accent);}
.footer-dl a:hover i{color:var(--accent);}
.footer-bottom{
  margin-top:52px;padding-top:24px;
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:13.5px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-3);}
.footer-bottom a:hover{color:var(--accent);}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease;}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .container-site{max-width:1140px;}
}
@media (max-width:991px){
  .nav-menu{display:none;}
  .btn-nav-cta{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .page-hero{padding:140px 0 66px;}
  .section{padding:66px 0;}
  .side-card{position:static;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .dl-row{grid-template-columns:repeat(2,1fr);}
  .cta-band{padding:42px 30px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container-site{padding:0 18px;}
  .brand-text{font-size:15px;}
  .section{padding:54px 0;}
  .section-head{margin-bottom:32px;}
  .timeline{padding-left:28px;}
  .timeline::before{left:7px;}
  .tl-item::before{left:-27px;}
  .tl-body{padding:18px 18px;}
  .hero-chips{gap:9px;}
  .chip{padding:8px 14px;font-size:13px;}
  .cta-actions .btn-main,.cta-actions .btn-ghost{width:100%;}
}
@media (max-width:575px){
  .page-hero{padding:126px 0 54px;}
  .card-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .dl-row{grid-template-columns:1fr;}
  .qr-box{flex-direction:column;align-items:flex-start;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .tl-head{gap:10px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
}