/* ============================================================
 *  泡泡 · 宣传站样式（深色高级版）
 *  设计：深色底 + 光晕 + 网格纹理 + 玻璃拟态卡片 + 克制的微动效
 *  约束：不引任何外部资源（图标用 emoji）；兼容安卓 WebView（不用 :has() 等新语法）
 * ============================================================ */
:root{
	--bg:#070A12;
	--card:rgba(255,255,255,.045);
	--card-2:rgba(255,255,255,.075);
	--line:rgba(255,255,255,.09);
	--line-2:rgba(255,255,255,.18);
	--ink:#F2F5FA;
	--ink-2:#A6B0C1;
	--ink-3:#6B7488;
	--brand:#3D9BFF;
	--brand-2:#7C6CFF;
	--brand-3:#00D6FF;
	--r:20px;
	--shadow:0 24px 60px rgba(0,0,0,.45);
	--ease:cubic-bezier(.22,.61,.36,1);
}
*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent;}
html{scroll-behavior:smooth;}
body{
	font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Helvetica Neue","Microsoft YaHei",sans-serif;
	background:var(--bg);color:var(--ink);line-height:1.65;
	-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
a{color:inherit;text-decoration:none;}
img{display:block;max-width:100%;}
.wrap{width:100%;max-width:1120px;margin:0 auto;padding:0 22px;}
.muted{color:var(--ink-3);}

/* ---------------- 背景：光晕 + 网格 ---------------- */
.bg{position:fixed;inset:0;z-index:-1;overflow:hidden;}
.orb{position:absolute;border-radius:50%;filter:blur(90px);opacity:.5;}
.orb.o1{width:520px;height:520px;left:-170px;top:-210px;background:#1B6BFF;}
.orb.o2{width:470px;height:470px;right:-190px;top:-60px;background:#7C3DFF;opacity:.42;}
.orb.o3{width:430px;height:430px;left:28%;bottom:-230px;background:#00C2A8;opacity:.26;}
.mesh{
	position:absolute;inset:0;
	background-image:
		linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
		linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
	background-size:64px 64px;
	-webkit-mask-image:radial-gradient(70% 55% at 50% 0%,#000 0%,transparent 75%);
	mask-image:radial-gradient(70% 55% at 50% 0%,#000 0%,transparent 75%);
}

/* ---------------- 顶栏 ---------------- */
.nav{
	position:sticky;top:0;z-index:30;
	background:rgba(7,10,18,.72);
	-webkit-backdrop-filter:saturate(1.6) blur(14px);
	backdrop-filter:saturate(1.6) blur(14px);
	border-bottom:1px solid rgba(255,255,255,.06);
}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:64px;}
.brand{display:flex;align-items:center;gap:11px;}
.brand-txt{display:flex;flex-direction:column;line-height:1.15;}
.brand-txt b{font-size:16.5px;letter-spacing:.01em;}
.brand-txt i{font-style:normal;font-size:10.5px;color:var(--ink-3);letter-spacing:.18em;text-transform:uppercase;}

/* 图标外框（带一点内发光，看起来更"贵"） */
.logo-ring{
	position:relative;flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;
	width:38px;height:38px;padding:3px;border-radius:13px;
	background:linear-gradient(140deg,rgba(255,255,255,.20),rgba(255,255,255,.04));
	border:1px solid var(--line-2);
	box-shadow:0 8px 22px rgba(0,0,0,.4);
}
.logo-ring img{width:100%;height:100%;border-radius:10px;}
.logo-ring.lg{width:74px;height:74px;padding:6px;border-radius:23px;}
.logo-ring.lg img{border-radius:17px;}

/* ---------------- 按钮 ---------------- */
.btn{
	position:relative;display:inline-flex;align-items:center;justify-content:center;gap:10px;
	overflow:hidden;height:44px;padding:0 20px;border-radius:999px;
	border:1px solid var(--line-2);background:rgba(255,255,255,.05);color:var(--ink);
	font-family:inherit;font-size:14.5px;font-weight:600;cursor:pointer;
	transition:transform .25s var(--ease),background .25s,border-color .25s,box-shadow .25s;
}
.btn:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.3);transform:translateY(-1px);}
.btn:active{transform:scale(.98);}
.btn.sm{height:36px;padding:0 16px;font-size:13.5px;}
.btn.primary{
	border:0;color:#fff;
	background:linear-gradient(120deg,var(--brand-3) 0%,var(--brand) 46%,var(--brand-2) 100%);
	box-shadow:0 14px 40px rgba(61,155,255,.34),inset 0 1px 0 rgba(255,255,255,.35);
}
.btn.primary:hover{box-shadow:0 18px 50px rgba(61,155,255,.5),inset 0 1px 0 rgba(255,255,255,.35);}
.btn.primary:disabled,
.btn.primary[data-off]{background:#2A3140;color:#8A93A6;box-shadow:none;cursor:default;}
.btn.xl{height:68px;padding:0 30px;font-size:17px;border-radius:24px;}
.dl-ico{font-size:22px;line-height:1;}
.dl-txt{display:flex;flex-direction:column;align-items:flex-start;line-height:1.25;}
.dl-txt b{font-size:17px;}
.dl-txt em{font-style:normal;font-size:12px;font-weight:400;opacity:.9;}
/* 按钮上缓慢扫过的高光（每 3.4s 一次，不刺眼） */
.shine{
	position:absolute;top:0;left:-60%;width:45%;height:100%;
	background:linear-gradient(100deg,transparent,rgba(255,255,255,.34),transparent);
	transform:skewX(-18deg);animation:shine 3.4s ease-in-out infinite;
}
@keyframes shine{0%{left:-60%;}55%{left:135%;}100%{left:135%;}}

/* ---------------- 首屏 ---------------- */
.hero{padding:80px 22px 0;text-align:center;}
.pill{
	display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:999px;
	background:rgba(255,255,255,.05);border:1px solid var(--line);
	font-size:12.5px;color:var(--ink-2);
}
.pill .dot{width:7px;height:7px;border-radius:50%;background:#3DDC84;box-shadow:0 0 10px #3DDC84;}
.hero h1{
	margin-top:24px;font-size:clamp(34px,7.8vw,70px);line-height:1.06;
	font-weight:800;letter-spacing:-1.6px;
}
.grad{
	background:linear-gradient(100deg,#5CC8FF 0%,#8E7DFF 48%,#FF6BAA 100%);
	-webkit-background-clip:text;background-clip:text;color:transparent;
}
.lede{margin:22px auto 0;max-width:600px;font-size:16px;color:var(--ink-2);}
.lede b{color:var(--ink);}
.cta{margin-top:34px;display:flex;justify-content:center;}
.facts{
	list-style:none;margin:48px auto 0;max-width:680px;
	display:grid;grid-template-columns:repeat(4,1fr);gap:12px;
}
.facts li{
	display:flex;flex-direction:column;align-items:center;gap:3px;
	padding:16px 6px;border-radius:16px;
	background:var(--card);border:1px solid var(--line);
	-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
}
.facts b{
	font-size:clamp(16px,4.2vw,22px);font-weight:700;font-variant-numeric:tabular-nums;
	background:linear-gradient(120deg,#7FD0FF,#9E8BFF);
	-webkit-background-clip:text;background-clip:text;color:transparent;
}
.facts span{font-size:11.5px;color:var(--ink-3);}

/* ---------------- 区块 ---------------- */
.sec{padding:92px 22px 0;}
.sec-head{margin-bottom:30px;}
.kicker{font-size:11.5px;font-weight:700;letter-spacing:.24em;color:var(--brand);}
.sec-head h2{margin-top:10px;font-size:clamp(22px,4.8vw,34px);font-weight:700;letter-spacing:-.7px;}
.card{
	background:var(--card);border:1px solid var(--line);border-radius:var(--r);
	-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
	transition:transform .3s var(--ease),border-color .3s,background .3s;
}
.grid{display:grid;gap:14px;grid-template-columns:1fr;}
.feat{padding:22px;}
.feat:hover{transform:translateY(-3px);border-color:var(--line-2);background:var(--card-2);}
.feat .fi{
	display:inline-flex;align-items:center;justify-content:center;
	width:46px;height:46px;border-radius:14px;font-size:22px;line-height:1;
	border:1px solid var(--line-2);
}
.feat b{display:block;margin:15px 0 6px;font-size:16.5px;letter-spacing:-.2px;}
.feat p{font-size:13.8px;color:var(--ink-2);}
/* 图标底色（低饱和渐变，深色底上不刺眼） */
.g-blue  {background:linear-gradient(135deg,rgba(61,155,255,.30),rgba(61,155,255,.06));}
.g-violet{background:linear-gradient(135deg,rgba(124,108,255,.30),rgba(124,108,255,.06));}
.g-red   {background:linear-gradient(135deg,rgba(255,77,106,.30),rgba(255,77,106,.06));}
.g-pink  {background:linear-gradient(135deg,rgba(255,107,170,.30),rgba(255,107,170,.06));}
.g-gold  {background:linear-gradient(135deg,rgba(255,187,66,.30),rgba(255,187,66,.06));}
.g-teal  {background:linear-gradient(135deg,rgba(0,214,255,.30),rgba(0,214,255,.06));}
.g-green {background:linear-gradient(135deg,rgba(61,220,132,.30),rgba(61,220,132,.06));}
.g-cyan  {background:linear-gradient(135deg,rgba(90,200,255,.30),rgba(90,200,255,.06));}

/* ---------------- 界面预览（手机框） ---------------- */
.shots{
	margin-top:26px;display:flex;gap:20px;overflow-x:auto;
	padding:10px 2px 24px;scroll-snap-type:x mandatory;
}
.shots::-webkit-scrollbar{height:0;}
.phone{
	flex:0 0 252px;scroll-snap-align:center;overflow:hidden;
	border-radius:32px;border:1px solid var(--line-2);background:#0E1420;
	box-shadow:var(--shadow);
}
.ph-bar{height:24px;display:flex;align-items:center;justify-content:center;background:#0E1420;}
.ph-bar i{width:66px;height:5px;border-radius:3px;background:rgba(255,255,255,.15);}
.ph-top{
	display:flex;align-items:center;justify-content:space-between;
	padding:6px 15px 11px;background:#0E1420;color:#E9EEF7;font-size:13.5px;font-weight:600;
}
.ph-top span{color:var(--ink-3);font-weight:400;}
.ph-body{height:350px;padding:12px;display:flex;flex-direction:column;gap:9px;background:#F1F4F9;overflow:hidden;}
.ph-b{
	max-width:80%;padding:8px 11px;border-radius:14px;font-size:12.5px;line-height:1.45;
	background:#fff;color:#1A1A1A;box-shadow:0 1px 3px rgba(16,24,40,.08);
}
.ph-b em{display:block;font-style:normal;font-size:10px;color:#98A2B3;margin-top:3px;}
.ph-b.left{border-top-left-radius:4px;}
.ph-b.right{align-self:flex-end;background:linear-gradient(120deg,#4FC3FF,#2E8BFF);color:#fff;border-top-right-radius:4px;}
.ph-b.right em{color:rgba(255,255,255,.8);}
.ph-b.rp{align-self:flex-start;background:linear-gradient(120deg,#FFB15C,#F5793B);color:#fff;font-weight:600;}
.ph-in{
	display:flex;align-items:center;justify-content:space-between;
	padding:10px 12px;background:#fff;border-top:1px solid #EAEFF6;
	color:#98A2B3;font-size:12px;
}
.ph-in i{
	font-style:normal;width:24px;height:24px;border-radius:50%;
	background:#2E8BFF;color:#fff;display:flex;align-items:center;justify-content:center;font-size:13px;
}
.ph-m{display:flex;gap:9px;}
.ph-av{
	width:30px;height:30px;border-radius:50%;background:#E7EFFA;flex:0 0 auto;
	display:flex;align-items:center;justify-content:center;font-size:15px;
}
.ph-m b{font-size:12.5px;color:#2E8BFF;}
.ph-m p{font-size:12.5px;color:#2B3140;}
.ph-imgs{display:flex;gap:4px;margin-top:6px;}
.ph-imgs i{width:52px;height:52px;border-radius:8px;background:linear-gradient(135deg,#CFE6FF,#EAF2FF);}
.ph-search{background:#fff;border-radius:999px;padding:8px 12px;font-size:12px;color:#98A2B3;}
.ph-tabs{display:flex;gap:6px;}
.ph-tabs span{font-size:11.5px;padding:4px 10px;border-radius:999px;background:#fff;color:#475467;}
.ph-tabs span.on{background:#E02E24;color:#fff;}
.ph-grid{display:grid;grid-template-columns:1fr 1fr;gap:7px;flex:1;}
.ph-grid i{background:linear-gradient(135deg,#FFD9D6,#FFF1EF);border-radius:10px;}
.ph-nav{
	display:flex;justify-content:space-around;background:#fff;border-radius:12px;
	padding:7px 0;font-size:11.5px;color:#98A2B3;
}
.ph-nav .on{color:#E02E24;font-weight:600;}

/* ---------------- 更新日志（等宽 + 微发光，像控制台） ---------------- */
.log{
	padding:24px;white-space:pre-wrap;font-size:13.5px;line-height:1.85;color:var(--ink-2);
	font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
	background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.02));
}
.log-head{
	display:inline-flex;align-items:center;gap:8px;margin-bottom:14px;padding:4px 13px;border-radius:999px;
	background:rgba(61,155,255,.16);color:#8FCBFF;font-size:12px;font-weight:600;letter-spacing:.02em;
	font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
}

/* ---------------- 下载区 ---------------- */
.dl-card{
	padding:26px;display:flex;align-items:center;gap:18px;flex-wrap:wrap;
	background:linear-gradient(120deg,rgba(61,155,255,.16),rgba(124,108,255,.10));
	border-color:rgba(255,255,255,.15);
}
.dl-info{flex:1;min-width:180px;display:flex;flex-direction:column;gap:3px;}
.dl-info b{font-size:17.5px;}
.dl-info span{font-size:13px;color:var(--ink-2);}
.tips{margin-top:16px;display:grid;gap:12px;}
.tip{
	padding:16px 18px;border-radius:16px;font-size:13.6px;color:var(--ink-2);
	background:var(--card);border:1px solid var(--line);
}
.tip b{display:block;margin-bottom:4px;font-size:14px;color:var(--ink);}

/* ---------------- 页脚 ---------------- */
.foot{padding:74px 22px 62px;text-align:center;font-size:12.5px;color:var(--ink-3);}
.foot-line{height:1px;margin-bottom:26px;background:linear-gradient(90deg,transparent,var(--line-2),transparent);}

/* ---------------- 滚动淡入 ----------------
   默认是可见的（万一 JS 没跑，页面也不会空白）；JS 加上 .anim 后才隐藏并逐个淡入 */
.js-anim .reveal{opacity:0;transform:translateY(22px);}
.js-anim .reveal.in{opacity:1;transform:none;transition:opacity .8s var(--ease),transform .8s var(--ease);}

/* ---------------- 响应式 ---------------- */
@media (min-width:640px){
	.grid{grid-template-columns:repeat(2,1fr);}
	.facts li{padding:20px 8px;}
}
@media (min-width:960px){
	.hero{padding-top:104px;}
	.grid.feat-grid{grid-template-columns:repeat(4,1fr);}
	.shots{justify-content:center;}
	.phone{flex:0 0 274px;}
	.tips{grid-template-columns:repeat(2,1fr);}
	.log{font-size:14px;padding:28px;}
}
@media (prefers-reduced-motion:reduce){
	.shine{display:none;}
	.js-anim .reveal{opacity:1;transform:none;}
}