*{margin:0;padding:0;box-sizing:border-box}
:root{--bg:#05060a;--text:#e8ecf6;--muted:#8b93a8;--amber:#ffb545;--card:#0e1018;--line:rgba(255,255,255,.08)}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
section{scroll-margin-top:80px}
.wrap{width:min(1200px,92vw);margin:0 auto}

/* header */
.site-header{position:sticky;top:0;z-index:100;height:64px}
.site-header::before{content:"";position:absolute;left:50%;transform:translateX(-50%);width:100vw;height:100%;background:rgba(5,6,10,.86);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.header-inner{position:relative;height:64px;display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:10px;font-weight:600;letter-spacing:.5px}
.brand img{height:32px;width:32px;border-radius:8px;object-fit:cover}
.brand span{font-size:16px}
.nav{display:flex;gap:26px;align-items:center}
.nav a{font-size:14px;color:var(--muted);transition:color .25s;position:relative;padding:6px 0}
.nav a:hover,.nav a.active{color:var(--amber)}
.nav a.active::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--amber);border-radius:2px}
.menu-btn{display:none;background:none;border:1px solid var(--line);color:var(--text);font-size:14px;padding:8px 14px;border-radius:8px;cursor:pointer}
.mobile-panel{display:none;position:absolute;top:64px;left:0;right:0;background:rgba(8,9,15,.98);border-bottom:1px solid var(--line);padding:12px 4vw;flex-direction:column;gap:2px}
.mobile-panel a{padding:12px 6px;font-size:15px;color:var(--muted);border-bottom:1px solid var(--line)}
.mobile-panel a:last-child{border-bottom:none}
.mobile-panel.open{display:flex}

/* hero */
.hero{position:relative;min-height:82vh;display:flex;align-items:center;overflow:hidden;padding:90px 0 70px}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.26}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,6,10,.5) 0%,rgba(5,6,10,.85) 70%,var(--bg) 100%)}
.hero-inner{position:relative;z-index:1;text-align:center}
.hero-clock{font-size:clamp(56px,11vw,128px);font-weight:200;letter-spacing:.04em;color:var(--text);line-height:1;text-shadow:0 0 60px rgba(255,181,69,.18)}
.hero h1{font-size:clamp(22px,3.2vw,34px);font-weight:500;margin-top:24px;letter-spacing:.02em}
.hero p{color:var(--muted);font-size:15px;margin-top:14px;max-width:520px;margin-left:auto;margin-right:auto}
.hero-actions{margin-top:34px;display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:13px 30px;border-radius:999px;font-size:15px;transition:transform .2s,box-shadow .2s,background .2s}
.btn-primary{background:var(--amber);color:#1a1206;font-weight:600;box-shadow:0 8px 30px rgba(255,181,69,.25)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 36px rgba(255,181,69,.35)}
.btn-ghost{border:1px solid rgba(255,255,255,.2);color:var(--text)}
.btn-ghost:hover{border-color:var(--amber);color:var(--amber)}

/* section head */
.section{padding:80px 0}
.section-head{margin-bottom:44px}
.section-head .eyebrow{display:inline-block;font-size:12px;letter-spacing:.24em;color:var(--amber);text-transform:uppercase;margin-bottom:12px}
.section-head h2{font-size:clamp(24px,3vw,34px);font-weight:600;letter-spacing:.01em}
.section-head p{color:var(--muted);margin-top:12px;max-width:560px;font-size:15px}

/* tonight */
.poster-row{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.poster-card{position:relative;border-radius:12px;overflow:hidden;background:var(--card);cursor:pointer}
.poster-card img{width:100%;aspect-ratio:3/4;object-fit:cover;transition:transform .5s ease}
.poster-card:hover img{transform:scale(1.05)}
.poster-card .tag{position:absolute;top:10px;left:10px;background:rgba(5,6,10,.78);color:var(--amber);font-size:12px;padding:4px 9px;border-radius:6px;letter-spacing:.04em}
.poster-card .cap{position:absolute;left:0;right:0;bottom:0;padding:34px 12px 12px;background:linear-gradient(180deg,transparent,rgba(5,6,10,.92));font-size:13px;color:#cfd5e4}

/* duration */
.duration-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.duration-card{background:linear-gradient(160deg,#0f1119,#0a0b12);border:1px solid var(--line);border-radius:16px;padding:32px 26px;transition:border-color .3s,transform .3s}
.duration-card:hover{border-color:rgba(255,181,69,.4);transform:translateY(-4px)}
.duration-card strong{display:block;font-size:30px;font-weight:300;color:var(--amber);letter-spacing:.02em}
.duration-card h3{font-size:17px;margin:10px 0 10px;font-weight:600}
.duration-card p{font-size:14px;color:var(--muted)}

/* night features */
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.feature-card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:26px 22px}
.feature-card .num{font-size:12px;color:var(--amber);letter-spacing:.2em;margin-bottom:14px}
.feature-card h3{font-size:16px;font-weight:600;margin-bottom:10px}
.feature-card p{font-size:13.5px;color:var(--muted)}

/* gallery */
.gallery-row{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.gallery-row figure{border-radius:10px;overflow:hidden;background:var(--card);cursor:pointer}
.gallery-row img{width:100%;aspect-ratio:2/3;object-fit:cover;transition:transform .5s}
.gallery-row figure:hover img{transform:scale(1.06)}

/* guide */
.guide-layout{display:grid;grid-template-columns:1.3fr .9fr;gap:48px;align-items:start}
.timeline{position:relative;padding-left:34px}
.timeline::before{content:"";position:absolute;left:9px;top:6px;bottom:6px;width:2px;background:linear-gradient(180deg,var(--amber),rgba(255,181,69,.1))}
.step{position:relative;padding-bottom:32px}
.step:last-child{padding-bottom:0}
.step::before{content:"";position:absolute;left:-33px;top:6px;width:14px;height:14px;border-radius:50%;background:var(--bg);border:2px solid var(--amber)}
.step .time{font-size:12px;letter-spacing:.16em;color:var(--amber);margin-bottom:6px}
.step h3{font-size:17px;font-weight:600;margin-bottom:6px}
.step p{font-size:14px;color:var(--muted)}
.step p b{color:#c3cadb;font-weight:500}
.guide-figure img{width:100%;border-radius:16px;border:1px solid var(--line)}

/* faq */
.chat{display:flex;flex-direction:column;gap:20px;max-width:760px;margin:0 auto}
.chat-item{display:flex;gap:12px;align-items:flex-start}
.chat-item.right{flex-direction:row-reverse}
.avatar{flex:0 0 38px;width:38px;height:38px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:600}
.avatar-q{background:#1b1e2b;color:#9aa3b8;border:1px solid var(--line)}
.avatar-a{background:var(--amber);color:#1a1206}
.bubble{max-width:76%;padding:14px 18px;border-radius:16px;font-size:14.5px}
.chat-item .bubble{background:#12141d;border:1px solid var(--line);border-top-left-radius:4px}
.chat-item.right .bubble{background:rgba(255,181,69,.1);border:1px solid rgba(255,181,69,.25);border-top-left-radius:16px;border-top-right-radius:4px;color:#e9eef9}

/* download */
.download{text-align:center;padding:90px 0}
.download .box{background:radial-gradient(circle at 50% 0%,rgba(255,181,69,.12),transparent 65%);border:1px solid var(--line);border-radius:24px;padding:64px 24px}
.download h2{font-size:clamp(24px,3.4vw,36px);font-weight:600}
.download p{color:var(--muted);margin-top:14px;font-size:15px}
.download-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:30px}

/* footer */
.site-footer{border-top:1px solid var(--line);padding:36px 0;font-size:12.5px;color:#5f6678}
.footer-inner{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center}
.footer-inner a{color:#7b8296}
.footer-inner a:hover{color:var(--amber)}
.footer-meta{display:flex;gap:18px;flex-wrap:wrap;align-items:center}

/* lightbox */
.lightbox{position:fixed;inset:0;background:rgba(2,3,6,.94);z-index:999;display:none;align-items:center;justify-content:center;padding:4vw}
.lightbox.open{display:flex}
.lightbox img{max-width:100%;max-height:100%;object-fit:contain;border-radius:8px}
.lightbox .close{position:absolute;top:20px;right:26px;font-size:30px;color:#fff;cursor:pointer;line-height:1;background:none;border:none}

@media(max-width:1024px){
  .poster-row{grid-template-columns:repeat(3,1fr)}
  .poster-row .poster-card:nth-child(4),.poster-row .poster-card:nth-child(5){display:none}
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .gallery-row{grid-template-columns:repeat(3,1fr)}
  .gallery-row figure:nth-child(4),.gallery-row figure:nth-child(5){display:none}
  .guide-layout{grid-template-columns:1fr;gap:32px}
  .guide-figure{max-width:420px;margin:0 auto}
}
@media(max-width:900px){
  .nav{display:none}
  .menu-btn{display:inline-flex}
}
@media(max-width:768px){
  .section{padding:56px 0}
  .poster-row{grid-template-columns:repeat(2,1fr);gap:12px}
  .poster-row .poster-card:nth-child(4),.poster-row .poster-card:nth-child(5){display:block}
  .duration-grid{grid-template-columns:1fr;gap:14px}
  .duration-card{padding:24px 20px}
  .feature-grid{grid-template-columns:1fr}
  .gallery-row{grid-template-columns:repeat(2,1fr);gap:10px}
  .gallery-row figure:nth-child(4),.gallery-row figure:nth-child(5){display:block}
  .bubble{max-width:82%}
  .footer-inner{flex-direction:column;align-items:flex-start;gap:8px}
  .hero{min-height:auto;padding:64px 0 56px}
}