:root{
  --bg:#F4F6FA;
  --card:#FFFFFF;
  --navy:#080D18;
  --navy-2:#101828;
  --ink:#080D18;
  --ink-2:#4A5468;
  --ink-3:#8B94A6;
  --on-dark-2:rgba(255,255,255,.66);
  --on-dark-3:rgba(255,255,255,.36);
  --accent:#2E6BFF;
  --accent-2:#1B4FD8;
  --accent-soft:#E9EFFF;
  --teal:#00A37A;
  --amber:#E8791E;
  --line:#E3E7EE;
  --line-2:#EDF0F5;
  --line-d:rgba(255,255,255,.11);
  --line-d2:rgba(255,255,255,.06);
  --r:12px;
  --r-sm:7px;
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
  --sans:system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  --e-out:cubic-bezier(.22,.7,.3,1);
  --e-swift:cubic-bezier(.4,0,.2,1);
  --e-pop:cubic-bezier(.34,1.32,.5,1);
  --shadow-s:0 1px 2px rgba(8,13,24,.05);
  --shadow-m:0 4px 16px rgba(8,13,24,.07);
  --shadow-l:0 20px 48px rgba(8,13,24,.11);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--sans);font-size:15px;line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
h1,h2,h3,h4{margin:0;font-weight:600;line-height:1.3;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.wrap{max-width:1240px;margin:0 auto;padding:0 32px}
.mono-lb{
  font-family:var(--mono);font-size:11.5px;letter-spacing:.14em;
  color:var(--ink-3);text-transform:uppercase;
}
.sec-hd{max-width:720px}
.sec-hd h2{
  font-size:52px;font-size:clamp(30px,4vw,52px);letter-spacing:-.045em;line-height:1.14;
  margin:16px 0 18px;font-weight:600;
}
.sec-hd p{font-size:16px;line-height:1.85;color:var(--ink-2)}
.mono-lb.lined{display:inline-flex;align-items:center;gap:10px}
.mono-lb.lined::before{content:'';width:26px;height:1px;background:currentColor;opacity:.5}
/* === 旧内核兼容：无 gap 时用 margin 模拟（现代浏览器会忽略这些覆盖） === */
.mono-lb.lined::after{content:'';width:10px;display:none}

.btn{
  position:relative;overflow:hidden;
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:12px 24px;border-radius:var(--r);font-size:14.5px;font-weight:500;
  font-family:inherit;border:1px solid transparent;cursor:pointer;
  transition:background .18s var(--e-swift),border-color .18s var(--e-swift),
             transform .18s var(--e-pop),box-shadow .18s var(--e-swift);
}
.btn:active{transform:translateY(1px) scale(.985)}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.btn-lg{padding:15px 30px;font-size:15.5px}
.btn-a{background:var(--accent);color:#fff;box-shadow:0 4px 16px rgba(46,107,255,.32)}
.btn-a:hover{background:var(--accent-2);box-shadow:0 10px 28px rgba(46,107,255,.44);transform:translateY(-2px)}

.btn-ghost{
  background:rgba(255,255,255,.07);color:#fff;border-color:rgba(255,255,255,.3);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.09);
}
.btn-ghost:hover{border-color:rgba(255,255,255,.62);background:rgba(255,255,255,.13);transform:translateY(-2px)}
.btn-arrow{width:14px;height:14px;position:relative;transition:transform .26s var(--e-out)}
.btn-arrow::before{content:'';position:absolute;left:0;top:6.5px;width:14px;height:1.5px;background:currentColor}
.btn-arrow::after{content:'';position:absolute;right:0;top:3.5px;width:6px;height:6px;
  border-right:1.5px solid currentColor;border-top:1.5px solid currentColor;transform:rotate(45deg)}
.btn-ghost:hover .btn-arrow{transform:translateX(4px)}

.nav{
  position:sticky;top:0;z-index:60;height:68px;
  background:#080D18;
  border-bottom:1px solid var(--line-d2);
}

.nav.slim{background:#060A12}

.nav::before{
  content:'';position:absolute;left:0;right:0;top:0;height:58px;
  background:#080D18;pointer-events:none;
}
.nav.slim::before{background:#060A12}

.nav .wrap{position:relative;z-index:1;display:flex;align-items:center;height:100%;gap:20px;padding-bottom:10px}
/* 旧内核兼容：flex 子项间距用 margin 兜底（支持 gap 的浏览器由 @supports 覆盖） */
.nav .wrap .brand{margin-right:0}
.nav-lk{display:flex;align-items:center;gap:4px;margin-left:16px}
.nav-lk a+a{margin-left:4px}
.nav-acts{display:flex;align-items:center;gap:8px}
.nav-acts .btn{margin-left:8px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;flex:none}
.brand .bm{
  width:30px;height:30px;border-radius:9px;flex:none;
  background:linear-gradient(140deg,#2E6BFF,#00A0A8);
  display:flex;align-items:center;justify-content:center;
  transition:transform .3s var(--e-pop),box-shadow .3s var(--e-swift);
}
.brand:hover .bm{transform:rotate(-7deg) scale(1.08);box-shadow:0 0 0 5px rgba(46,107,255,.2)}
.brand b{font-size:16.5px;font-weight:600;letter-spacing:-.01em}

.nav-lk a{
  position:relative;font-size:14px;color:var(--on-dark-2);padding:9px 12px;border-radius:var(--r-sm);
  transition:color .18s var(--e-swift),background .18s var(--e-swift);
  background:transparent;border:0;font-family:inherit;line-height:inherit;
  cursor:pointer;white-space:nowrap;
}
.nav-lk a:hover{color:#fff;background:rgba(255,255,255,.06)}

.nav-lk a.on{color:#fff;background:rgba(46,107,255,.2)}
.nav .btn{padding:9px 18px;font-size:13.5px}
.nav .wrap>div:last-child{margin-left:auto}

.nav-tg{display:none;width:36px;height:32px;border:1px solid var(--line-d);border-radius:var(--r-sm);
  background:transparent;cursor:pointer;padding:0;place-items:center}
.nav-tg span{display:block;width:14px;height:1.5px;background:#fff;position:relative}
.nav-tg span::before,.nav-tg span::after{content:'';position:absolute;left:0;width:14px;height:1.5px;background:#fff}
.nav-tg span::before{top:-4.5px}
.nav-tg span::after{top:4.5px}

.hero{position:relative;background:var(--navy);color:#fff;padding:74px 0 0;overflow:hidden}

.hero-mesh{
  position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none;opacity:.55;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 110% 75% at 15% -5%,#000 25%,transparent 74%);
  -webkit-mask-image:radial-gradient(ellipse 110% 75% at 15% -5%,#000 25%,transparent 74%);
}

.hero-orb{position:absolute;border-radius:50%;pointer-events:none;filter:blur(20px);
  will-change:transform;transform:translateZ(0)}
.hero-orb-a{top:-340px;left:-200px;width:820px;height:820px;
  background:radial-gradient(circle,rgba(46,107,255,.30),transparent 62%)}
.hero-orb-b{top:120px;right:-260px;width:660px;height:660px;
  background:radial-gradient(circle,rgba(0,160,168,.20),transparent 64%)}
.hero .wrap{position:relative;z-index:1}

.hero .grid{display:grid;grid-template-columns:1fr 500px;gap:58px;align-items:center}
.hero .grid>.hero-copy{margin-right:0}

.hero-copy{text-align:left}

.hero h1{
  font-size:72px;font-size:clamp(40px,5.4vw,72px);font-weight:600;letter-spacing:-.05em;line-height:1.06;
  margin-bottom:26px;
}

.hero h1 span{display:block}

.hero h1 u{text-decoration:none;position:relative;white-space:nowrap;
  background:linear-gradient(100deg,#5B8CFF,#00D4C0 70%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  -webkit-text-fill-color:transparent;
  transform:translateZ(0);
  will-change:transform;
  backface-visibility:hidden;
  -webkit-backface-visibility:hidden;
}

.hero h1 u::after{
  content:'';position:absolute;left:.01em;right:.05em;bottom:-.06em;height:4px;border-radius:2px;
  background:linear-gradient(90deg,rgba(91,140,255,.85),rgba(0,212,192,.15));
}
.hero .lead{
  font-size:17px;line-height:1.85;color:var(--on-dark-2);max-width:540px;
}
.hero .acts{display:flex;gap:12px;flex-wrap:wrap;margin-top:34px}
.hero .acts .btn+.btn{margin-left:12px}

/* ── 首屏真机截图：仿真软件窗口 ── */
.shot{position:relative}
.shot-glow{
  position:absolute;inset:-60px -80px;pointer-events:none;
  background:
    radial-gradient(45% 45% at 70% 30%,rgba(46,107,255,.34),transparent 70%),
    radial-gradient(40% 40% at 30% 75%,rgba(0,160,168,.22),transparent 70%);
  filter:blur(18px);
}
.shot-win{
  position:relative;
  background:#0D1420;
  border:1px solid rgba(255,255,255,.13);
  border-radius:14px;overflow:hidden;
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.09),
    0 40px 90px rgba(0,0,0,.62),
    0 16px 40px rgba(0,0,0,.42);
  transition:transform .5s var(--e-out),box-shadow .5s var(--e-out);
  will-change:transform;
}
.shot:hover .shot-win{
  transform:translateY(-6px) rotate3d(1,-1,0,.6deg);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.09),
    0 60px 120px rgba(0,0,0,.66),
    0 28px 60px rgba(46,107,255,.2);
}
.shot-bar{
  display:flex;align-items:center;gap:12px;
  height:40px;padding:0 14px;
  background:linear-gradient(180deg,rgba(255,255,255,.075),rgba(255,255,255,.03));
  border-bottom:1px solid rgba(255,255,255,.09);
}
.shot-dots{display:flex;gap:7px;flex:none}
.shot-dots i{width:11px;height:11px;border-radius:50%;
  box-shadow:inset 0 0 1px rgba(0,0,0,.35)}
.shot-dots i:nth-child(1){background:#FF5F57}
.shot-dots i:nth-child(2){background:#FEBC2E}
.shot-dots i:nth-child(3){background:#28C840}
.shot-title{
  flex:1;text-align:center;margin-right:51px;
  font-size:12px;letter-spacing:.02em;color:rgba(255,255,255,.55);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.shot-img{position:relative;background:#fff}
.shot-img img{display:block;width:100%;height:auto}

.ribbon{position:relative;z-index:1;background:#fff;border-top:1px solid var(--line-d);
  margin-top:72px;box-shadow:0 -20px 52px rgba(0,0,0,.3)}
.ribbon-in{max-width:1240px;margin:0 auto;padding:0 32px}

.ribbon-tabs{display:flex;overflow-x:auto;border-bottom:1px solid var(--line);
  margin-top:16px;scrollbar-width:none}
.ribbon-tabs::-webkit-scrollbar{display:none}
.ribbon-tabs span{
  padding:9px 14px;font-size:12.5px;color:var(--ink-3);white-space:nowrap;
  border-bottom:2px solid transparent;transition:color .16s,background .16s;
  border-radius:6px 6px 0 0;
}
.ribbon-tabs span:first-child{margin-left:auto}
.ribbon-tabs span:last-child{margin-right:auto}
.ribbon-tabs span:hover{color:var(--ink-2);background:var(--line-2)}
.ribbon-tabs span.on{color:var(--accent);border-bottom-color:var(--accent);font-weight:500}

.ribbon-body{display:flex;overflow-x:auto;padding:14px 0 16px}
.rg{display:flex;flex-direction:column;padding:0 18px;border-right:1px solid var(--line-2);flex:none;
  margin:0 auto;align-items:center}
.rg:last-child{border-right:0;padding-right:0}
.rg:first-child{padding-left:0}
.rbtns{display:flex;gap:3px}
.rb{
  position:relative;width:74px;display:flex;flex-direction:column;align-items:center;gap:6px;
  padding:8px 3px 5px;border-radius:var(--r-sm);text-align:center;
  transition:background .16s var(--e-swift),transform .16s var(--e-pop);
}

.hero .rb{opacity:1;transform:none;animation:none}
.rb img{width:30px;height:30px;object-fit:contain;transition:transform .22s var(--e-pop)}
.rb b{font-size:10.5px;font-weight:400;color:#3A4152;line-height:1.25}
.rb:hover{background:var(--accent-soft);transform:translateY(-3px)}
.rb:hover img{transform:scale(1.14)}
.rg .gl{font-family:var(--mono);font-size:9.5px;letter-spacing:.1em;color:var(--ink-3);
  text-align:center;margin-top:7px}

.flow{padding:88px 0 104px}

.flow-hd{margin-bottom:36px}
.flow-hd h2{font-size:52px;font-size:clamp(30px,4vw,52px);letter-spacing:-.045em;margin:12px 0 14px;line-height:1.14}

.flow-hd h2:first-child{margin-top:0}
.flow-hd p{font-size:15.5px;color:var(--ink-2);line-height:1.8}

.flow-hd .flow-sub{white-space:nowrap;font-size:15.5px}
.flow-wrap{display:grid;grid-template-columns:206px 1fr;gap:60px;align-items:start}

.flow-wrap>*{min-width:0}
.tool>*{min-width:0}

.rail{position:sticky;top:94px}
.rail-hd{font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--ink-3);padding-bottom:13px;border-bottom:1px solid var(--line);margin-bottom:12px}
.rail-nav{display:flex;flex-direction:column}
.rail-nav a{
  position:relative;display:flex;align-items:center;gap:11px;padding:8px 10px;border-radius:9px;
  font-size:14px;color:var(--ink-3);
  transition:color .2s var(--e-swift),background .22s var(--e-swift),transform .26s var(--e-out);
}
.rail-nav a .rn{margin-right:11px}

.rail-nav a .rn{
  font-family:var(--mono);font-size:11px;font-weight:600;color:var(--ink-3);opacity:.6;
  transition:opacity .2s,transform .24s var(--e-out);min-width:18px;
}
.rail-nav a:hover{color:var(--ink-2);background:#EAEEF6;transform:translateX(3px)}
.rail-nav a:hover .rn{opacity:1}
.rail-nav a.on{color:var(--ink);font-weight:500;background:#fff;box-shadow:var(--shadow-s)}
.rail-nav a.on .rn{opacity:1;transform:scale(1.16)}

.tools-list{display:flex;flex-direction:column;gap:18px}
.tools-list>.tool+.tool{margin-top:18px}
.tool{
  position:relative;
  display:block;

  scroll-margin-top:102px;
  background:#FBFCFE;
  border:1px solid rgba(15,26,52,.09);
  border-radius:18px;
  box-shadow:0 1px 2px rgba(15,26,52,.03),0 10px 28px rgba(15,26,52,.05);
  overflow:hidden;
  transition:border-color .24s var(--e-swift),box-shadow .24s var(--e-swift),
             background .24s var(--e-swift);
}

.tool:hover{
  border-color:rgba(46,107,255,.28);
  box-shadow:0 2px 4px rgba(15,26,52,.04),0 16px 40px rgba(46,107,255,.11);
}
/* 滚动到对应位置：毛玻璃光晕边框 */
.tool.act{
  border-color:rgba(46,107,255,.38);
  background:#fff;
  box-shadow:
    0 0 0 6px rgba(46,107,255,.09),
    0 0 24px rgba(46,107,255,.20),
    0 18px 46px rgba(46,107,255,.12);
}

/* ── 卡片头部：编号 + 图标 + 标题 / 一句话说明 ── */
.tool-hd{display:flex;align-items:center;gap:14px;padding:22px 24px 16px}
.tool-hd .tc{
  flex:none;margin-right:14px;
  font-family:var(--mono);font-size:26px;font-weight:600;line-height:1;
  letter-spacing:.02em;color:var(--accent);opacity:.22;
  transition:opacity .3s var(--e-out);
  font-variant-numeric:tabular-nums;
}
.tool-hd .ti{
  width:44px;height:44px;border-radius:12px;flex:none;margin-right:14px;
  background:#F1F5FF;border:1px solid #DCE6FF;
  display:flex;align-items:center;justify-content:center;
  transition:transform .3s var(--e-pop),box-shadow .26s var(--e-swift);
}
.tool-hd .ti img{width:26px;height:26px;object-fit:contain}
.tool:hover .tool-hd .ti,.tool.act .tool-hd .ti{
  transform:translateY(-2px) scale(1.06);
  box-shadow:0 10px 22px rgba(46,107,255,.22);
}
.tool-hd .tt{min-width:0;flex:1}
.tool-hd h3{font-size:17px;letter-spacing:-.02em;line-height:1.3}
.tool-hd .tl{
  margin-top:6px;font-size:13px;line-height:1.65;color:var(--ink-2);
  max-width:680px;text-wrap:pretty;
}
.tool:hover .tool-hd .tc,.tool.act .tool-hd .tc{opacity:.5}

/* ── 演示区：截图 / GIF / 视频（换素材只改 tu/t0x 文件） ── */
.tool-bd{padding:0 18px 18px}
.demo{
  position:relative;margin:0;overflow:hidden;
  border-radius:13px;background:#fff;
  border:1px solid rgba(15,26,52,.12);
  box-shadow:0 1px 2px rgba(15,26,52,.04),0 12px 32px rgba(15,26,52,.08);
  transition:border-color .24s var(--e-swift),box-shadow .24s var(--e-swift);
}
.tool:hover .demo{border-color:rgba(46,107,255,.26)}
.demo img,.demo video{display:block;width:100%;height:auto}
.demo img{cursor:zoom-in;transition:transform .55s var(--e-out)}
.demo:hover img{transform:scale(1.012)}
.demo::before{
  content:'点击放大';
  position:absolute;right:11px;bottom:11px;z-index:2;
  font-size:11.5px;line-height:1;padding:6px 12px;border-radius:999px;pointer-events:none;
  background:rgba(8,13,24,.72);color:#fff;
  opacity:0;transform:translateY(5px);
  transition:opacity .2s var(--e-swift),transform .26s var(--e-out);
}
.demo:hover::before{opacity:1;transform:translateY(0)}
.demo[data-kind="video"]::before{display:none}

/* ── 多图标签页：点标签切换演示图 ── */
.mtabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}
.mtab{
  padding:7px 14px;border-radius:999px;cursor:pointer;
  font-family:inherit;font-size:13px;line-height:1.4;color:var(--ink-2);
  background:#fff;border:1px solid var(--line);
  transition:color .16s var(--e-swift),border-color .16s var(--e-swift),
             background .16s var(--e-swift),box-shadow .16s var(--e-swift);
}
.mtab:hover{color:var(--ink);border-color:rgba(46,107,255,.4);background:var(--accent-soft)}
.mtab:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.mtab.on{
  color:#fff;background:var(--accent);border-color:var(--accent);
  box-shadow:0 3px 10px rgba(46,107,255,.32);
}
.demo{position:relative}
.demo.fade img{animation:demoFade .65s var(--e-out)}
@keyframes demoFade{from{opacity:0;transform:translateY(12px) scale(.995)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){.demo.fade img{animation:none}}

.buy{position:relative;background:var(--navy);color:#fff;padding:104px 0 108px;overflow:hidden;

  scroll-margin-top:68px}
.buy::before{
  content:'';position:absolute;top:0;left:0;right:0;bottom:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 85% 65% at 80% 8%,#000 18%,transparent 74%);
  -webkit-mask-image:radial-gradient(ellipse 85% 65% at 80% 8%,#000 18%,transparent 74%);
}
.buy-glow{position:absolute;top:-240px;right:-180px;width:680px;height:680px;border-radius:50%;
  pointer-events:none;
  background:radial-gradient(circle,rgba(46,107,255,.24),transparent 66%)}
.buy-glow-2{position:absolute;bottom:-280px;left:-200px;width:600px;height:600px;border-radius:50%;
  pointer-events:none;
  background:radial-gradient(circle,rgba(0,163,122,.16),transparent 68%)}
.buy .wrap{position:relative;z-index:1}

.buy-hd{max-width:900px;margin-bottom:62px}
.buy-hd h2{
  font-size:54px;font-size:clamp(30px,4.2vw,54px);letter-spacing:-.05em;margin:17px 0 19px;line-height:1.12;
  white-space:nowrap;
}
.buy-hd p{font-size:16px;line-height:1.85;color:var(--on-dark-2)}

.buy-wrap{display:grid;grid-template-columns:1fr 336px;gap:56px;align-items:start}
.buy-wrap>*{min-width:0}

.buy-l{padding:36px 38px 34px;border-radius:22px;
  background:linear-gradient(165deg,rgba(255,255,255,.075),rgba(255,255,255,.022) 62%);
  border:1px solid rgba(255,255,255,.1);
  box-shadow:0 34px 80px rgba(0,0,0,.42),inset 0 1px 0 rgba(255,255,255,.08);
}

.price{
  display:flex;align-items:baseline;gap:8px;line-height:1;
  opacity:1;transform:none;animation:none;transition:none;
}

.price .cur{font-size:30px;font-weight:500;color:#7FA6FF;transform:translateY(-.42em);margin-right:2px}

.price b{
  font-size:104px;font-size:clamp(72px,7.6vw,104px);font-weight:600;letter-spacing:-.06em;font-family:var(--sans);
  font-variant-numeric:tabular-nums;line-height:.88;
  background:linear-gradient(160deg,#FFFFFF 34%,#9DC0FF);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;

  transform:translateZ(0);
  will-change:transform;
  backface-visibility:hidden;
  -webkit-backface-visibility:hidden;
}
.price .unit{font-size:14px;color:var(--on-dark-3);margin-left:12px;font-family:var(--mono);
  letter-spacing:.06em}
.price-note{margin-top:18px;font-size:13.5px;color:var(--on-dark-3)}

.perk{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:42px 0 0;
  padding-top:36px;border-top:1px solid var(--line-d)}
.perk li{
  display:flex;gap:14px;align-items:flex-start;padding:16px 18px;border-radius:13px;
  border:1px solid transparent;background:rgba(255,255,255,.035);
  transition:background .22s var(--e-swift),border-color .22s var(--e-swift),
             transform .26s var(--e-out);
}
.perk li .pk-ic{margin-right:14px}
.perk li:hover{background:rgba(46,107,255,.12);border-color:rgba(110,155,255,.32);transform:translateX(4px)}
.pk-ic{position:relative;width:20px;height:20px;border-radius:50%;flex:none;margin-top:3px;
  background:rgba(46,107,255,.2);border:1px solid rgba(110,155,255,.46);
  transition:background .22s var(--e-swift),border-color .22s var(--e-swift)}
.perk li:hover .pk-ic{background:var(--accent);border-color:var(--accent)}
.pk-ic::after{content:'';position:absolute;left:6px;top:4.5px;width:5px;height:8px;
  border-right:1.6px solid #7FA6FF;border-bottom:1.6px solid #7FA6FF;transform:rotate(42deg);
  transition:border-color .22s var(--e-swift)}
.perk li:hover .pk-ic::after{border-color:#fff}
.perk b{display:block;font-size:14.5px;font-weight:500;color:#fff;margin-bottom:5px}
.perk i{display:block;font-style:normal;font-size:12.5px;line-height:1.7;color:var(--on-dark-3)}

.buy-r{text-align:center}
.qr-card{
  position:relative;background:#fff;border-radius:20px;padding:20px 20px 18px;
  box-shadow:0 28px 72px rgba(0,0,0,.52);
  transition:transform .34s var(--e-out),box-shadow .34s var(--e-out);
}
.qr-card:hover{transform:translateY(-5px);box-shadow:0 36px 84px rgba(0,0,0,.6)}

.qr-card::after{
  content:'';position:absolute;top:-1px;right:-1px;bottom:-1px;left:-1px;border-radius:21px;pointer-events:none;
  border:1px solid rgba(46,107,255,.42);
  animation:none;
}
.qr-img{background:#fff;border-radius:12px;overflow:hidden}
.qr-img img{width:100%;height:100%;aspect-ratio:1;object-fit:contain}
/* 旧内核兼容：无 aspect-ratio 时给图片固定高度占位 */
@supports not (aspect-ratio:1){.qr-img img{height:296px}}
.qr-cap{border-top:1px solid var(--line);margin-top:16px;padding-top:14px}
.qr-cap b{display:block;font-size:15px;font-weight:600;color:var(--ink)}
.qr-cap span{display:block;margin-top:5px;font-size:12px;color:var(--ink-3)}
.qr-tip{margin-top:20px;font-size:12px;line-height:1.75;color:var(--on-dark-3);text-align:left;
  padding-left:24px;position:relative}
.qr-tip::before{content:'';position:absolute;left:6px;top:.6em;width:4px;height:4px;
  border-radius:50%;background:var(--accent);opacity:.75}

.foot{background:var(--navy);color:var(--on-dark-3);padding:18px 0;
  border-top:1px solid var(--line-d2)}

.foot .foot-in{display:grid;grid-template-columns:1fr 1fr 1fr;gap:12px 28px;align-items:center}
.foot .fbrand{display:flex;align-items:center;gap:10px;color:rgba(255,255,255,.82)}
.foot .fbrand .bm{margin-right:10px}

.foot .fl-nm{font-weight:500;font-size:14px}
.foot .fbrand .bm{width:21px;height:21px;border-radius:6px;flex:none;
  background:linear-gradient(140deg,#2E6BFF,#00A0A8);
  display:flex;align-items:center;justify-content:center}
.foot p{font-family:var(--mono);font-size:11px;letter-spacing:.04em;line-height:1.9;margin:0}

.foot .fmid{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;
  gap:6px 10px;text-align:center}
.foot .fmid a{
  color:var(--on-dark-2);text-decoration:none;position:relative;
  transition:color .18s var(--e-swift);
}
.foot .fmid a::after{
  content:'';position:absolute;left:0;right:0;bottom:-2px;height:1px;
  background:currentColor;opacity:.35;transition:opacity .18s var(--e-swift);
}
.foot .fmid a:hover{color:#fff}
.foot .fmid a:hover::after{opacity:.8}

.foot .fco{text-align:right;color:var(--on-dark-3)}

.modal{
  position:fixed;top:0;right:0;bottom:0;left:0;z-index:200;
  display:flex;align-items:center;justify-content:center;padding:24px;
}
.modal[hidden]{display:none}
.modal-bg{position:absolute;top:0;right:0;bottom:0;left:0;background:rgba(4,8,16,.78);
  backdrop-filter:blur(6px);animation:none}
.modal-box{
  position:relative;z-index:1;width:100%;max-width:368px;
  background:var(--card);border-radius:20px;padding:30px 30px 26px;
  box-shadow:0 36px 90px rgba(0,0,0,.56);text-align:center;
  animation:none;
  max-height:calc(100vh - 48px);overflow-y:auto;
}
.modal-x{
  position:absolute;top:14px;right:14px;width:32px;height:32px;
  border:0;border-radius:8px;background:transparent;cursor:pointer;
  font-size:22px;line-height:1;color:var(--ink-3);font-family:inherit;
  display:flex;align-items:center;justify-content:center;
  transition:background .16s var(--e-swift),color .16s var(--e-swift),transform .24s var(--e-pop);
}
.modal-x:hover{background:var(--line-2);color:var(--ink);transform:rotate(90deg)}
.modal-hd h3{font-size:19px;letter-spacing:-.02em;margin-bottom:10px}
.modal-hd p{font-size:13px;line-height:1.75;color:var(--ink-2)}
.modal-qr{margin:24px auto 0;width:232px;max-width:100%;position:relative}

.modal-qr::after{
  content:'';position:absolute;top:-1px;right:-1px;bottom:-1px;left:-1px;border-radius:13px;pointer-events:none;
  border:1px solid rgba(46,107,255,.42);
  animation:none;
}
.modal-qr img{width:100%;height:232px;aspect-ratio:1;object-fit:contain;
  border:1px solid var(--line);border-radius:12px}
.modal-ft{margin-top:16px}
.modal-ft b{display:block;font-size:15px;font-weight:600;color:var(--ink)}
.modal-ft span{display:block;margin-top:5px;font-size:12px;color:var(--accent-2)}
.modal-tip{margin-top:16px;padding-top:14px;border-top:1px solid var(--line);
  font-size:12px;line-height:1.7;color:var(--ink-3);text-wrap:balance}
body.no-scroll{overflow:hidden}

/* 功能演示图：点击放大 */
.lb{
  position:fixed;top:0;right:0;bottom:0;left:0;z-index:300;
  display:flex;align-items:center;justify-content:center;padding:58px 32px 32px;
}
.lb[hidden]{display:none}
.lb-bg{position:absolute;top:0;right:0;bottom:0;left:0;background:rgba(4,8,16,.88);
  backdrop-filter:blur(8px)}
.lb-x{
  position:absolute;top:18px;right:20px;z-index:3;width:40px;height:40px;
  border:1px solid rgba(255,255,255,.24);border-radius:10px;background:rgba(255,255,255,.09);
  color:#fff;font-size:24px;line-height:1;font-family:inherit;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  transition:background .18s var(--e-swift),transform .24s var(--e-pop);
}
.lb-x:hover{background:rgba(255,255,255,.2);transform:rotate(90deg)}
.lb-in{
  position:relative;z-index:2;max-width:100%;max-height:100%;
  display:flex;flex-direction:column;align-items:center;gap:14px;
}
.lb-in img{
  max-width:calc(100vw - 64px);max-height:calc(100vh - 168px);
  width:auto;height:auto;border-radius:12px;background:#fff;
  box-shadow:0 40px 100px rgba(0,0,0,.62);
}
.lb-cap{font-family:var(--mono);font-size:12px;letter-spacing:.04em;line-height:1.6;
  color:rgba(255,255,255,.72);text-align:center;max-width:760px;
  padding:0 8px}
@media (max-width:560px){
  .lb{padding:52px 14px 22px}
  .lb-x{top:12px;right:12px;width:36px;height:36px}
  .lb-in img{max-width:calc(100vw - 28px);max-height:calc(100vh - 150px)}
  .lb-cap{font-size:11px}
}

[data-rv]{
  opacity:1;
  transform:none;
  animation:none;
  transition:none;
}

@media (max-width:1120px){
  .hero .grid{grid-template-columns:1fr;gap:48px;justify-items:start}
  .shot{max-width:680px}
}
@media (max-width:1040px){
  .flow-wrap{grid-template-columns:1fr;gap:0}
  .buy-wrap{grid-template-columns:1fr;gap:48px}
  .buy-r{order:-1;max-width:320px;margin:0 auto}
  .qr-tip{text-align:center;padding-left:0}
  .qr-tip::before{display:none}
  .buy-glow-2{display:none}
}
@media (max-width:900px){
  .rail{
    position:sticky;top:68px;z-index:30;background:#F4F6FA;
    margin:0 -32px 24px;padding:13px 32px;border-bottom:1px solid var(--line);
  }
  .rail-hd{display:none}
  .rail-nav{flex-direction:row;gap:7px;overflow-x:auto;scrollbar-width:none}
  .rail-nav::-webkit-scrollbar{display:none}
  .rail-nav a{white-space:nowrap;padding:7px 14px;border:1px solid var(--line);
    border-radius:999px;background:var(--card);font-size:13px;box-shadow:none}
  .rail-nav a:hover{transform:none;background:#EAEEF6}
  .rail-nav a.on{border-color:var(--accent);background:#fff;color:var(--ink)}

  .tool-hd{padding:18px 18px 14px;gap:12px}
  .tool-hd .tc{font-size:22px;margin-right:12px}
  .tool-hd .ti{width:40px;height:40px;border-radius:10px;margin-right:12px}
  .tool-hd .ti img{width:24px;height:24px}
  .tool-hd h3{font-size:16.5px}
  .tool-bd{padding:0 14px 14px}

  .nav-lk{
    position:absolute;top:68px;left:0;right:0;flex-direction:column;align-items:stretch;
    background:var(--navy);border-bottom:1px solid var(--line-d);padding:8px 32px 18px;
    display:none;gap:0;margin-left:0;
  }
  .nav-lk.open{display:flex}
  .nav-lk a{
    padding:12px 4px;border-bottom:1px solid var(--line-d2);font-size:15px;
    text-align:left;border-radius:0;
  }

  .nav-lk a.on{background:transparent;color:#7FA6FF}
  .nav-tg{display:grid}
  .buy{padding:78px 0 84px}
  .buy-hd{margin-bottom:44px}

  .foot .foot-in{grid-template-columns:minmax(0,1fr);gap:14px;justify-items:center}
  .foot .fco{text-align:center}
  .perk{grid-template-columns:minmax(0,1fr);gap:10px;margin-top:36px;padding-top:30px}

  .ribbon-body{
    -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 48px,#000 calc(100% - 48px),transparent 100%);
    mask-image:linear-gradient(90deg,transparent 0,#000 48px,#000 calc(100% - 48px),transparent 100%);
  }
}
@media (max-width:560px){
  .wrap{padding:0 20px}
  .hero{padding:52px 0 0}
  .hero h1{font-size:54px;font-size:clamp(38px,12vw,54px)}
  .hero .acts{flex-direction:column;align-items:stretch}
  .hero .acts .btn{width:100%}
  .nav .btn{padding:7px 13px;font-size:13px}
  .rail{margin:0 -20px 20px;padding:12px 20px}
  .ribbon-in{padding:0 20px}
  .buy{padding:62px 0 68px}
  .price b{font-size:68px}
  .price .cur{font-size:24px}
  .price .unit{display:block;margin:9px 0 0}
  .buy-l{padding:26px 22px 24px}
  .buy-r{max-width:272px}
  .tool-hd{padding:16px 15px 12px;gap:10px}
  .tool-hd .tc{font-size:19px;margin-right:10px}
  .tool-hd .ti{width:36px;height:36px;border-radius:9px;margin-right:10px}
  .tool-hd .ti img{width:22px;height:22px}
  .tool-hd h3{font-size:15.5px}
  .tool-hd .tl{font-size:12.5px;margin-top:5px}
  .tool-bd{padding:0 11px 11px}
  .shot{max-width:100%}

  .flow-hd .flow-sub{white-space:normal;font-size:14.5px}

  .buy-hd h2{white-space:normal}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
}

/* ============================================================
   现代浏览器恢复区（@supports gap）：
   旧内核不认识 gap 时走上面的 margin 兜底；
   支持 gap 的浏览器会应用下面的规则，margin 兜底自动失效。
   ============================================================ */
@supports (gap:1px){
  /* 清掉 margin 兜底，避免新内核上间距叠加 */
  .nav-lk a+a{margin-left:0}
  .nav-acts .btn{margin-left:0}
  .hero .acts .btn+.btn{margin-left:0}
  .tools-list>.tool+.tool{margin-top:0}
  .perk li .pk-ic{margin-right:0}
  .foot .fbrand .bm{margin-right:0}
  .rail-nav a .rn{margin-right:0}
  .tool-hd .tc{margin-right:0}
  .tool-hd .ti{margin-right:0}

  /* mono-lb.lined 用 gap 后，旧版 ::after 占位不再需要 */
  .mono-lb.lined::after{display:none}
}