/* ================= 问道 · 星空 官网样式 ================= */
:root{
  --ink:#08120f;
  --ink2:#0d1c19;
  --ink3:#122722;
  --gold:#e0b673;
  --gold2:#f3d9a4;
  --gold-d:#a8803c;
  --jade:#4ecdc4;
  --red:#c8442f;
  --red2:#e05a42;
  --txt:#dfe7e3;
  --txt2:#9aada7;
  --line:rgba(224,182,115,.22);
  --kai:"STKaiti","KaiTi","楷体","Kaiti SC","STSong","SimSun",serif;
  --hei:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",sans-serif;
  --w:1180px;
  --rad:14px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--ink);color:var(--txt);font-family:var(--hei);
  font-size:15px;line-height:1.75;overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
.ic{width:1.15em;height:1.15em;fill:none;stroke:currentColor;stroke-width:1.9;
    stroke-linecap:round;stroke-linejoin:round;flex:none}
.wrap{max-width:var(--w);margin:0 auto;padding:0 24px}
.wrap.wide{max-width:1360px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 26px;border-radius:999px;font-size:15px;font-weight:600;
  letter-spacing:.5px;transition:.25s;white-space:nowrap;position:relative;
}
.btn-main{
  background:linear-gradient(180deg,#e2603f,#b93a22);color:#fff;
  box-shadow:0 8px 22px rgba(200,68,47,.42),inset 0 1px 0 rgba(255,255,255,.28);
}
.btn-main:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(200,68,47,.55),inset 0 1px 0 rgba(255,255,255,.3)}
.btn-ghost{
  color:var(--gold2);border:1.5px solid var(--gold);
  background:rgba(8,18,15,.42);backdrop-filter:blur(6px);
}
.btn-ghost:hover{background:var(--gold);color:#1a1206;font-weight:700}
.btn-out{
  display:block;text-align:center;padding:10px 18px;border-radius:10px;
  border:1px solid var(--line);color:var(--gold);font-size:14px;font-weight:600;transition:.22s;
}
.btn-out:hover{background:rgba(224,182,115,.12);border-color:var(--gold)}
.btn-big{padding:15px 40px;font-size:16.5px;width:100%;max-width:420px}
.btn-nav{padding:8px 22px;font-size:14px}

/* ---------- 导航 ---------- */
.nav{
  position:fixed;left:0;right:0;top:0;z-index:60;height:70px;
  transition:.3s;border-bottom:1px solid transparent;
}
.nav.on{background:rgba(6,14,12,.92);backdrop-filter:blur(14px);border-bottom-color:var(--line)}
.nav-in{max-width:1360px;margin:0 auto;padding:0 24px;height:100%;display:flex;align-items:center;gap:36px}
.brand{display:flex;align-items:center;gap:11px;flex:none}
.brand-ico{width:38px;height:38px;border-radius:9px;box-shadow:0 3px 12px rgba(200,68,47,.45)}
.brand-txt{font-family:var(--kai);font-size:25px;font-weight:700;letter-spacing:3px;
  background:linear-gradient(180deg,#f7e3b8,#d5a55f 55%,#a8803c);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  filter:drop-shadow(0 2px 6px rgba(0,0,0,.6));}
.brand-txt em{font-style:normal;font-size:17px;letter-spacing:1px;
  background:linear-gradient(180deg,#9ff0e6,#3fb8ad);-webkit-background-clip:text;background-clip:text;color:transparent;margin-left:3px}
.menu{display:flex;gap:6px;margin-left:auto}
.menu a{padding:9px 15px;border-radius:8px;font-size:15px;color:var(--txt2);position:relative;transition:.2s}
.menu a:hover{color:var(--gold2)}
.menu a.on{color:var(--gold)}
.menu a.on::after{content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:18px;height:2px;border-radius:2px;background:linear-gradient(90deg,transparent,var(--gold),transparent)}
.burger{display:none;flex-direction:column;gap:5px;padding:8px;margin-left:auto}
.burger i{width:22px;height:2px;background:var(--gold);border-radius:2px;transition:.25s}

/* ---------- 首屏 ---------- */
.hero{position:relative;min-height:100vh;min-height:100svh;display:flex;align-items:center;overflow:hidden}
.slides{position:absolute;inset:0}
.slide{position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:0;transform:scale(1.07);filter:brightness(1.14) saturate(1.18) contrast(1.04);
  transition:opacity 1.4s ease,transform 7s linear}
.slide.on{opacity:1;transform:scale(1)}
.hero-mask{position:absolute;inset:0;
  background:
    radial-gradient(ellipse at 22% 58%,rgba(6,14,12,.72),rgba(6,14,12,.26) 46%,rgba(6,14,12,.04) 72%),
    linear-gradient(180deg,rgba(6,14,12,.62),rgba(6,14,12,.1) 32%,rgba(8,18,15,.86));}
.hero-body{position:relative;z-index:3;max-width:1360px;margin:0 auto;padding:120px 24px 90px;width:100%}
.hero-tag{font-size:15px;letter-spacing:7px;color:var(--jade);margin-bottom:14px;
  opacity:0;animation:fu .9s .15s forwards}
.hero-title{font-family:var(--kai);font-size:clamp(64px,11vw,142px);line-height:1;letter-spacing:16px;
  font-weight:700;margin-left:-8px;
  background:linear-gradient(180deg,#fff9ec 8%,#f1d5a0 42%,#c9994f 74%,#8f6a2c);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  filter:drop-shadow(0 6px 22px rgba(0,0,0,.85));
  opacity:0;animation:fu 1s .3s forwards}
.hero-sub{font-family:var(--kai);font-size:clamp(22px,3.4vw,40px);letter-spacing:5px;margin-top:8px;
  color:#eaf3ef;text-shadow:0 3px 16px rgba(0,0,0,.9);
  opacity:0;animation:fu 1s .45s forwards}
.hero-sub span{color:var(--jade);font-weight:700;
  text-shadow:0 0 22px rgba(78,205,196,.7),0 3px 12px rgba(0,0,0,.9)}
.hero-note{margin-top:18px;font-size:15px;color:#c3d3cd;letter-spacing:.6px;
  opacity:0;animation:fu 1s .6s forwards}
.hero-btns{display:flex;gap:16px;flex-wrap:wrap;margin-top:34px;opacity:0;animation:fu 1s .75s forwards}
.hero-size{margin-top:16px;font-size:13.5px;color:#8fa39d;opacity:0;animation:fu 1s .9s forwards}
@keyframes fu{from{opacity:0;transform:translateY(26px)}to{opacity:1;transform:none}}

.dots{position:absolute;bottom:104px;right:6vw;z-index:4;display:flex;gap:10px}
.dots i{width:9px;height:9px;border-radius:50%;background:rgba(255,255,255,.35);cursor:pointer;transition:.3s}
.dots i.on{background:var(--gold);width:26px;border-radius:6px;box-shadow:0 0 12px rgba(224,182,115,.8)}
.scroll-hint{position:absolute;bottom:34px;left:50%;transform:translateX(-50%);z-index:4;
  width:24px;height:40px;border:1.5px solid rgba(224,182,115,.5);border-radius:14px}
.scroll-hint span{position:absolute;left:50%;top:8px;width:4px;height:8px;margin-left:-2px;
  border-radius:2px;background:var(--gold);animation:sd 1.7s infinite}
@keyframes sd{0%{opacity:0;transform:translateY(0)}35%{opacity:1}100%{opacity:0;transform:translateY(14px)}}

/* ---------- 公告 ---------- */
.notice{background:linear-gradient(90deg,#0f2420,#142e28 50%,#0f2420);border-bottom:1px solid var(--line)}
.notice-in{display:flex;align-items:center;gap:18px;height:56px}
.notice-label{display:flex;align-items:center;gap:7px;flex:none;color:var(--gold);
  font-weight:700;letter-spacing:2px;font-size:14.5px;
  border-right:1px solid var(--line);padding-right:18px}
.notice-label .ic{width:18px;height:18px;fill:currentColor;stroke:none}
.notice-list{flex:1;height:24px;overflow:hidden;position:relative}
.notice-scroll a{display:block;height:24px;line-height:24px;font-size:14.5px;color:#bfd2cb;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;transition:color .2s}
.notice-scroll a:hover{color:var(--gold2)}

/* ---------- 通用 section ---------- */
.sec{padding:96px 0;position:relative}
.sec:nth-child(even){background:linear-gradient(180deg,var(--ink),var(--ink2) 50%,var(--ink))}
.sec-t{font-family:var(--kai);font-size:clamp(30px,4.2vw,44px);text-align:center;letter-spacing:7px;
  font-weight:700;
  background:linear-gradient(180deg,#fbf0d6,#d9ac68 60%,#a8803c);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  filter:drop-shadow(0 3px 10px rgba(0,0,0,.6))}
.sec-s{text-align:center;font-size:12.5px;letter-spacing:6px;color:var(--txt2);margin:8px 0 52px;
  position:relative}
.sec-s::before,.sec-s::after{content:"";position:absolute;top:50%;width:70px;height:1px;
  background:linear-gradient(90deg,transparent,var(--gold-d))}
.sec-s::before{right:calc(50% + 76px)}
.sec-s::after{left:calc(50% + 76px);transform:scaleX(-1)}

/* ---------- 特色 ---------- */
.feats{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.feat{background:linear-gradient(160deg,rgba(24,48,42,.82),rgba(12,26,23,.9));
  border:1px solid var(--line);border-radius:var(--rad);padding:32px 26px 30px;
  position:relative;overflow:hidden;transition:.3s}
.feat::after{content:"";position:absolute;top:0;left:0;width:100%;height:2px;
  background:linear-gradient(90deg,transparent,var(--gold),transparent);opacity:0;transition:.35s}
.feat:hover{transform:translateY(-6px);border-color:rgba(224,182,115,.5);
  box-shadow:0 18px 40px rgba(0,0,0,.5)}
.feat:hover::after{opacity:1}
.feat-ico{width:58px;height:58px;border-radius:14px;display:grid;place-items:center;
  font-family:var(--kai);font-size:29px;font-weight:700;margin-bottom:18px;
  color:#1a1206;background:linear-gradient(160deg,#f5ddaa,#cfa257);
  box-shadow:0 6px 18px rgba(207,162,87,.32)}
.feat h3{font-family:var(--kai);font-size:22.5px;letter-spacing:2px;color:var(--gold2);margin-bottom:10px}
.feat p{font-size:14.5px;color:var(--txt2);line-height:1.85}

/* ---------- 下载 ---------- */
.sec-dl{background:
  linear-gradient(180deg,rgba(8,18,15,.94),rgba(10,22,19,.96)),
  url('../img/banner2.jpg') center/cover fixed no-repeat}
.dl-grid{display:grid;grid-template-columns:1.72fr 1fr;gap:26px;align-items:start}
.dl-main{display:grid;grid-template-columns:300px 1fr;gap:30px;
  background:linear-gradient(160deg,rgba(26,52,45,.9),rgba(11,24,21,.94));
  border:1px solid var(--line);border-radius:18px;padding:30px;
  box-shadow:0 20px 50px rgba(0,0,0,.45)}
.dl-phone{position:relative;border-radius:16px;overflow:hidden;border:1px solid var(--line);align-self:start}
.dl-phone img{aspect-ratio:3/4;object-fit:cover;width:100%}
.dl-phone-mask{position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(8,18,15,.88))}
.dl-ver{position:absolute;left:14px;bottom:12px;font-size:13px;color:var(--gold2);
  background:rgba(8,18,15,.72);border:1px solid var(--line);padding:3px 12px;border-radius:999px;
  letter-spacing:1px;backdrop-filter:blur(4px)}
.dl-info h3{font-family:var(--kai);font-size:27px;letter-spacing:2px;color:var(--gold2);margin-bottom:18px}
.dl-meta{list-style:none;margin-bottom:24px}
.dl-meta li{display:flex;gap:14px;padding:9px 0;border-bottom:1px dashed rgba(224,182,115,.14);font-size:14.5px}
.dl-meta b{color:var(--txt2);font-weight:400;flex:none;width:78px}
.dl-meta span{color:var(--txt)}
.dl-tip{margin-top:14px;font-size:13px;color:#839590;line-height:1.7}
.dl-side{display:grid;gap:16px}
.dl-card{background:linear-gradient(160deg,rgba(22,46,40,.82),rgba(11,24,21,.9));
  border:1px solid var(--line);border-radius:var(--rad);padding:22px;text-align:center}
.dl-card h4{font-family:var(--kai);font-size:20px;letter-spacing:2px;color:var(--gold2);margin-bottom:14px}
.dl-card .qr{width:150px;margin:0 auto 12px;border-radius:10px;background:#fff;padding:8px}
.dl-card p{font-size:13px;color:var(--txt2)}
.dl-card p.small{text-align:left;line-height:1.8;margin-bottom:14px}

/* ---------- 截图 ---------- */
.shots{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.shot{margin:0;border-radius:12px;overflow:hidden;border:1px solid var(--line);
  position:relative;cursor:pointer;transition:.3s;background:#0a1512}
.shot img{aspect-ratio:16/9;object-fit:cover;transition:.6s}
.shot:hover img{transform:scale(1.07)}
.shot:hover{border-color:var(--gold);box-shadow:0 16px 34px rgba(0,0,0,.55)}
.shot figcaption{position:absolute;left:0;right:0;bottom:0;padding:26px 14px 11px;font-size:13.5px;
  color:#e6efe9;letter-spacing:1px;
  background:linear-gradient(180deg,transparent,rgba(6,14,12,.9))}
.arts{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:18px}
.art{margin:0;border-radius:12px;overflow:hidden;border:1px solid var(--line);position:relative}
.art img{aspect-ratio:21/9;object-fit:cover;transition:.6s}
.art:hover img{transform:scale(1.04)}
.art figcaption{position:absolute;left:0;bottom:0;padding:34px 20px 14px;width:100%;font-size:14px;
  font-family:var(--kai);letter-spacing:3px;color:var(--gold2);
  background:linear-gradient(180deg,transparent,rgba(6,14,12,.88))}

/* ---------- 充值 ---------- */
.sec-pay{background:
  linear-gradient(180deg,rgba(8,18,15,.96),rgba(10,22,19,.98)),
  url('../img/banner1.jpg') center/cover fixed no-repeat}
.pay-box{display:grid;grid-template-columns:1.25fr 1fr;gap:32px;align-items:center;
  background:linear-gradient(160deg,rgba(26,52,45,.9),rgba(11,24,21,.94));
  border:1px solid var(--line);border-radius:18px;padding:36px;
  box-shadow:0 20px 50px rgba(0,0,0,.45)}
.pay-l h3{font-family:var(--kai);font-size:29px;letter-spacing:2px;color:var(--gold2);margin-bottom:12px}
.pay-l>p{color:var(--txt2);font-size:14.5px;margin-bottom:22px}
.tiers{display:grid;grid-template-columns:repeat(3,1fr);gap:11px;margin-bottom:26px}
.tiers span{display:flex;flex-direction:column;align-items:center;gap:2px;padding:14px 6px;
  border-radius:11px;border:1px solid var(--line);font-size:17px;font-weight:700;color:var(--gold);
  background:rgba(224,182,115,.06);transition:.24s}
.tiers span i{font-style:normal;font-size:12.5px;font-weight:400;color:var(--txt2)}
.tiers span:hover{border-color:var(--gold);background:rgba(224,182,115,.16);transform:translateY(-3px)}
.pay-r img{border-radius:14px;border:1px solid var(--line)}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:12px;max-width:920px;margin:0 auto}
.faq details{background:linear-gradient(160deg,rgba(22,46,40,.7),rgba(11,24,21,.85));
  border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:.25s}
.faq details[open]{border-color:rgba(224,182,115,.45)}
.faq summary{padding:17px 22px 17px 48px;cursor:pointer;font-size:16px;font-weight:600;
  color:var(--gold2);position:relative;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{content:"问";position:absolute;left:18px;top:15px;width:21px;height:21px;
  display:grid;place-items:center;font-size:12px;font-weight:700;color:#1a1206;border-radius:5px;
  background:linear-gradient(160deg,#f5ddaa,#cfa257)}
.faq summary::after{content:"";position:absolute;right:22px;top:24px;width:9px;height:9px;
  border-right:2px solid var(--gold);border-bottom:2px solid var(--gold);
  transform:rotate(45deg);transition:.28s}
.faq details[open] summary::after{transform:rotate(-135deg);top:27px}
.faq details p{padding:0 22px 20px 48px;color:var(--txt2);font-size:14.5px}
.faq details a{color:var(--jade);border-bottom:1px dashed rgba(78,205,196,.5)}

/* ---------- 页脚 ---------- */
.foot{background:#050d0b;border-top:1px solid var(--line);padding:54px 0 30px}
.foot-top{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:32px;align-items:start;
  padding-bottom:30px;border-bottom:1px solid rgba(224,182,115,.13)}
.foot-brand{display:flex;align-items:center;gap:14px}
.foot-brand img{width:52px;height:52px;border-radius:12px}
.foot-brand b{display:block;font-family:var(--kai);font-size:24px;letter-spacing:3px;color:var(--gold2)}
.foot-brand i{font-style:normal;font-size:12.5px;color:var(--txt2);letter-spacing:1px}
.foot-links{display:flex;flex-wrap:wrap;gap:10px 22px;align-content:start;padding-top:8px}
.foot-links a{font-size:14px;color:var(--txt2);transition:.2s}
.foot-links a:hover{color:var(--gold)}
.foot-srv p{font-size:13.5px;color:var(--txt2);padding-top:8px;line-height:1.5}
.foot-bot{padding-top:24px;text-align:center}
.disclaim{font-size:12.5px;color:#5f7570;line-height:1.95;max-width:900px;margin:0 auto 14px}
.copy{font-size:12.5px;color:#4d625d;letter-spacing:.5px}

/* ---------- 回顶 ---------- */
.totop{position:fixed;right:26px;bottom:26px;z-index:50;width:46px;height:46px;border-radius:50%;
  display:grid;place-items:center;background:rgba(200,68,47,.9);color:#fff;
  box-shadow:0 8px 24px rgba(0,0,0,.5);opacity:0;pointer-events:none;transition:.3s}
.totop.on{opacity:1;pointer-events:auto}
.totop:hover{background:var(--red2);transform:translateY(-3px)}
.totop svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:2;
  stroke-linecap:round;stroke-linejoin:round}

/* ---------- 滚动入场 ---------- */
.rv{opacity:0;transform:translateY(34px);transition:opacity .75s ease,transform .75s ease}
.rv.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .dl-grid{grid-template-columns:1fr}
  .dl-side{grid-template-columns:repeat(3,1fr)}
  .shots{grid-template-columns:repeat(2,1fr)}
  /* 导航多了一项「注册账号」，820~1080 之间还是横排，收紧间距防挤爆 */
  .menu{gap:2px}
  .menu a{padding:9px 10px;font-size:14px}
}
@media (max-width:900px){
  .feats{grid-template-columns:repeat(2,1fr)}
  .pay-box{grid-template-columns:1fr}
  .pay-r{order:-1}
  .foot-top{grid-template-columns:1fr 1fr}
}
@media (max-width:820px){
  .nav{height:60px}
  .nav-in{gap:14px}
  .menu{position:fixed;left:0;right:0;top:60px;flex-direction:column;gap:0;
    background:rgba(6,14,12,.98);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);
    padding:8px 16px 18px;transform:translateY(-130%);transition:.32s;margin-left:0}
  .menu.open{transform:none}
  .menu a{padding:13px 8px;border-radius:8px;font-size:15.5px}
  .menu a.on::after{display:none}
  .burger{display:flex}
  .btn-nav{margin-left:auto;padding:7px 16px;font-size:13px}
  .burger{margin-left:10px}
  .hero-body{padding:104px 20px 80px}
  .hero-title{letter-spacing:9px}
  .dots{bottom:88px;right:24px}
  .sec{padding:64px 0}
  .dl-main{grid-template-columns:1fr;padding:22px}
  .dl-phone{max-width:260px;margin:0 auto}
  .dl-side{grid-template-columns:1fr}
  .arts{grid-template-columns:1fr}
  .notice-in{height:auto;padding-top:12px;padding-bottom:12px;gap:12px}
  .notice-label{padding-right:12px}
}
@media (max-width:560px){
  .feats{grid-template-columns:1fr}
  .shots{grid-template-columns:1fr}
  .tiers{grid-template-columns:repeat(2,1fr)}
  .hero-btns .btn{flex:1;justify-content:center}
  .footer-hide{display:none}
  .pay-box{padding:22px}
  .foot-top{grid-template-columns:1fr;gap:22px}
  .brand-txt{font-size:21px}
  .brand-txt em{font-size:14px}
  .brand-ico{width:32px;height:32px}
}