*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Microsoft YaHei','PingFang SC',sans-serif;background:#0d0a08;color:#fff}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 16px}
header{position:fixed;width:100%;top:0;z-index:999;background:transparent;border-bottom:1px solid transparent;transition:background .4s ease,border-color .4s ease,box-shadow .4s ease}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;letter-spacing:2px;color:#ffd700;text-shadow:0 0 12px rgba(255,215,0,0.6)}
.nav a{margin-left:24px;color:#e8dcc8;font-size:14px;font-weight:600;transition:color .3s}
.nav a:hover{color:#ffd700}
header.scrolled{background:rgba(10,8,6,0.95);border-bottom-color:rgba(255,215,0,0.25);box-shadow:0 4px 20px rgba(0,0,0,0.5)}
header.menu-open{background:rgba(10,8,6,0.95);border-bottom-color:rgba(255,215,0,0.25)}
.hero{position:relative;min-height:100vh;display:flex;align-items:center;justify-content:center;text-align:center;overflow:hidden;padding:120px 16px 60px}
.hero-bg{position:absolute;inset:0;background:url('../images/banner/banner1fbfe47479d4862d325033448f5e7f5b1780302953.jpg') center/cover no-repeat}
.hero-bg::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(13,10,8,0.68) 0%,rgba(13,10,8,0.35) 40%,#0d0a08 95%)}
.hero-content{position:relative;z-index:2;max-width:820px}
.hero-logo{width:120px;height:120px;margin:0 auto 24px;border-radius:24px;overflow:hidden;border:3px solid #ffd700;box-shadow:0 0 40px rgba(255,215,0,0.5);animation:float 4s ease-in-out infinite}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-14px)}}
.hero h1{font-size:clamp(40px,7vw,88px);font-weight:900;letter-spacing:8px;background:linear-gradient(180deg,#fff6c9,#ffd700 45%,#ff8c00);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;text-shadow:0 0 30px rgba(255,140,0,0.3);margin-bottom:10px}
.hero .sub{font-size:clamp(16px,2.5vw,24px);color:#ffd700;letter-spacing:6px;margin-bottom:12px}
.hero .tagline{color:#e8dcc8;font-size:16px;margin-bottom:32px;line-height:1.8}
.btn-group{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.btn{display:inline-block;padding:14px 40px;border-radius:50px;font-size:18px;font-weight:800;letter-spacing:2px;transition:transform .3s,box-shadow .3s}
.btn-primary{background:linear-gradient(90deg,#ffd700,#ff8c00);color:#1a0f00;box-shadow:0 6px 24px rgba(255,140,0,0.5);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{box-shadow:0 6px 24px rgba(255,140,0,0.5)}50%{box-shadow:0 6px 40px rgba(255,215,0,0.8)}}
.btn-ghost{border:2px solid rgba(255,215,0,0.6);color:#ffd700}
.btn:hover{transform:translateY(-4px) scale(1.03)}
.hero-meta{margin-top:40px;display:flex;gap:28px;justify-content:center;flex-wrap:wrap;font-size:14px;color:#c9b98f}
.hero-meta b{display:block;font-size:22px;color:#ffd700;margin-bottom:2px}
section{padding:80px 0;position:relative;scroll-margin-top:70px}
.sec-title{text-align:center;font-size:clamp(28px,4vw,42px);font-weight:900;letter-spacing:4px;margin-bottom:12px;color:#fff}
.sec-title span{color:#ffd700}
.sec-sub{text-align:center;color:#c9b98f;margin-bottom:48px}
.intro{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.intro-img{border-radius:16px;overflow:hidden;border:1px solid rgba(255,215,0,0.3);box-shadow:0 20px 60px rgba(0,0,0,0.6)}
.intro-txt h3{font-size:24px;color:#ffd700;margin-bottom:16px}
.intro-txt p{color:#d8cfb8;margin-bottom:16px;line-height:2}
.video{background:linear-gradient(180deg,#1a120a,#0d0a08)}
.video-wrap{max-width:960px;margin:0 auto;border-radius:16px;overflow:hidden;border:1px solid rgba(255,215,0,0.3);box-shadow:0 20px 60px rgba(0,0,0,0.6);background:#000}
.video-wrap video{display:block;width:100%;aspect-ratio:16/9;object-fit:cover}
.features{background:linear-gradient(180deg,#0d0a08,#1a120a)}
.feat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.feat-card{background:rgba(255,255,255,0.04);border:1px solid rgba(255,215,0,0.2);border-radius:16px;padding:32px 20px;text-align:center;transition:transform .3s,background .3s}
.feat-card:hover{transform:translateY(-8px);background:rgba(255,215,0,0.08)}
.feat-icon{font-size:40px;margin-bottom:14px}
.feat-card h4{color:#ffd700;margin-bottom:8px;font-size:17px}
.feat-card p{color:#b8ad92;font-size:13px;line-height:1.8}
.welfare{background:url('../images/banner/bannerb725a4790da063dea403afc31e8a68931780302972.jpg') center/cover no-repeat fixed}
.welfare .overlay{background:rgba(13,10,8,0.85);padding:80px 0;border-top:1px solid rgba(255,215,0,0.2);border-bottom:1px solid rgba(255,215,0,0.2)}
.welfare-list{max-width:760px;margin:0 auto}
.welfare-item{display:flex;align-items:flex-start;gap:14px;background:rgba(255,215,0,0.06);border:1px solid rgba(255,215,0,0.25);border-radius:14px;padding:18px 22px;margin-bottom:14px}
.welfare-item .star{color:#ffd700;font-size:20px;flex-shrink:0}
.welfare-item p{color:#e8dcc8;line-height:1.8}
.screenshots{background:#0d0a08}
.snap-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.snap-grid img{border-radius:12px;border:1px solid rgba(255,215,0,0.2);transition:transform .4s;aspect-ratio:16/9;object-fit:cover}
.snap-grid img:hover{transform:scale(1.04)}
.download{background:linear-gradient(180deg,#1a120a,#0d0a08)}
.download-box{max-width:640px;margin:0 auto;text-align:center;background:rgba(255,215,0,0.05);border:1px solid rgba(255,215,0,0.3);border-radius:20px;padding:48px 32px;box-shadow:0 20px 60px rgba(0,0,0,0.5)}
.dl-time{color:#ffd700;font-size:15px;letter-spacing:2px;margin-bottom:28px}
.dl-btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-bottom:32px}
.dl-tips{display:flex;gap:24px;justify-content:center;flex-wrap:wrap;color:#e8dcc8;font-size:14px}
.dl-tips span{margin-right:6px}
.dl-wrap{position:relative;display:inline-block}
.qr-pop{position:absolute;bottom:calc(100% + 14px);left:50%;transform:translateX(-50%);background:#fff;padding:10px;border-radius:12px;box-shadow:0 10px 30px rgba(0,0,0,0.55);opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;z-index:100;width:140px}
.qr-pop::after{content:'';position:absolute;top:100%;left:50%;transform:translateX(-50%);border:8px solid transparent;border-top-color:#fff}
.dl-wrap:hover .qr-pop{opacity:1;visibility:visible}
@media(hover:none){.qr-pop{display:none}}
.dl-qr{text-align:center;margin-top:28px;padding-top:24px;border-top:1px dashed rgba(255,215,0,0.25)}
.dl-qr > div{display:inline-block;background:#fff;padding:10px;border-radius:12px;box-shadow:0 8px 24px rgba(0,0,0,0.4)}
.dl-qr p{margin-top:10px;color:#ffd700;font-size:13px;letter-spacing:2px}
.activity{background:#0d0a08}
.act-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.act-card{background:linear-gradient(180deg,rgba(255,215,0,0.06),rgba(255,140,0,0.04));border:1px solid rgba(255,215,0,0.25);border-radius:18px;padding:32px 28px;transition:transform .3s,box-shadow .3s}
.act-card:hover{transform:translateY(-6px);box-shadow:0 16px 40px rgba(255,140,0,0.15)}
.act-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.act-head h3{color:#ffd700;font-size:22px}
.act-tag{background:linear-gradient(90deg,#ffd700,#ff8c00);color:#1a0f00;font-size:12px;font-weight:700;padding:4px 12px;border-radius:20px;flex-shrink:0}
.act-meta{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:14px}
.act-meta span{background:rgba(255,215,0,0.08);border:1px solid rgba(255,215,0,0.2);color:#e8dcc8;font-size:12px;padding:4px 10px;border-radius:8px}
.act-desc{color:#e8dcc8;font-size:14px;line-height:1.8;margin-bottom:12px}
.act-list{margin:0;padding:0;list-style:none}
.act-list li{position:relative;padding-left:20px;color:#b8ad92;font-size:13px;line-height:1.9;margin-bottom:6px}
.act-list li::before{content:'★';position:absolute;left:0;color:#ffd700;font-size:11px;top:3px}
footer{background:#080605;border-top:1px solid rgba(255,215,0,0.15);padding:40px 0;text-align:center;color:#8a7f66;font-size:13px}
footer .ft-title{color:#ffd700;font-size:18px;margin-bottom:10px;letter-spacing:3px}
.reveal{opacity:0;transform:translateY(40px);transition:opacity .8s ease,transform .8s ease}
.reveal.visible{opacity:1;transform:translateY(0)}
.menu-toggle{display:none;background:none;border:none;cursor:pointer;width:42px;height:42px;padding:8px;position:relative;z-index:1000;flex-shrink:0}
.menu-toggle span{display:block;width:26px;height:2px;background:#ffd700;border-radius:2px;margin:5px auto;transition:transform .3s ease,opacity .3s ease}
.menu-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle.open span:nth-child(2){opacity:0}
.menu-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.back-top{position:fixed;right:20px;bottom:30px;z-index:998;width:46px;height:46px;border-radius:50%;background:linear-gradient(135deg,#ffd700,#ff8c00);color:#1a0f00;font-size:18px;font-weight:800;border:none;cursor:pointer;opacity:0;visibility:hidden;transform:translateY(20px);transition:opacity .3s ease,visibility .3s ease,transform .3s ease;box-shadow:0 4px 16px rgba(255,140,0,0.4)}
.back-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.back-top:hover{transform:translateY(-4px);box-shadow:0 6px 24px rgba(255,215,0,0.6)}
@media(max-width:900px){
.intro{grid-template-columns:1fr}.feat-grid{grid-template-columns:repeat(2,1fr)}.snap-grid{grid-template-columns:repeat(2,1fr)}.act-grid{grid-template-columns:1fr}
.menu-toggle{display:block}
.nav nav{display:flex;position:fixed;top:64px;left:0;right:0;background:rgba(10,8,6,0.97);backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,215,0,0.2);flex-direction:column;align-items:center;max-height:0;overflow:hidden;transition:max-height .45s ease}
.nav nav.open{max-height:400px;padding:12px 0 20px}
.nav nav a{margin:0;padding:14px 0;font-size:16px;display:block;width:100%;text-align:center;border-bottom:1px solid rgba(255,215,0,0.08)}
.nav nav a:hover{background:rgba(255,215,0,0.08)}
}
@media(max-width:560px){
.feat-grid{grid-template-columns:1fr 1fr;gap:12px}.snap-grid{grid-template-columns:1fr 1fr;gap:10px}.btn-group{flex-direction:column;align-items:center}.hero-logo{width:90px;height:90px}.hero .tagline{font-size:14px}
.hero-meta{gap:16px}.hero-meta b{font-size:18px}.btn{padding:12px 30px;font-size:16px}
.back-top{right:14px;bottom:20px;width:42px;height:42px;font-size:15px}
}