:root{
  --bg:#0E0B10;
  --panel:#16121C;
  --panel-2:#1D1726;
  --ink:#F7F1EE;
  --soft:#B5A9B4;
  --muted:#7E7383;
  --brand:#FF7A45;
  --brand2:#FF3D7F;
  --amber:#FFC857;
  --line:rgba(255,122,69,.18);
  --grad:linear-gradient(135deg,#FF7A45,#FF3D7F);
  --r:18px;
  --wrap:min(1160px,calc(100% - 40px));
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:15px;
  line-height:1.85;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
.wrap{width:var(--wrap);margin:0 auto}
section{position:relative}

/* 00 公告条 */
.announce{
  height:34px;background:#171219;border-bottom:1px solid var(--line);
  display:flex;align-items:center;overflow:hidden;position:relative;
}
.announce::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:var(--grad);
}
.announce-track{
  display:flex;gap:0;white-space:nowrap;
  animation:announceScroll 36s linear infinite;
}
.announce:hover .announce-track{animation-play-state:paused}
.announce-item{
  font-size:12.5px;color:var(--soft);padding:0 26px;letter-spacing:.4px;
}
.announce-item b{color:var(--amber);font-weight:600}
@keyframes announceScroll{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}

/* 01 导航 */
.nav{
  position:sticky;top:0;z-index:60;
  background:rgba(14,11,16,.72);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:64px;gap:20px}
.brand{display:flex;align-items:center;gap:9px;flex-shrink:0}
.brand-logo{
  height:32px;width:auto;border-radius:9px;display:block;
}
.brand-name{font-size:17px;font-weight:800;letter-spacing:.5px}
.nav-links{display:flex;gap:28px;list-style:none}
.nav-links a{font-size:14px;color:var(--soft);transition:color .2s}
.nav-links a:hover{color:var(--ink)}
.nav-cta{
  display:inline-block;padding:9px 20px;border-radius:999px;
  background:var(--grad);color:#2A0E1A;font-weight:700;font-size:14px;
  box-shadow:0 0 22px rgba(255,122,69,.18);transition:transform .2s;
}
.nav-cta:hover{transform:translateY(-2px)}
.hamburger{display:none;width:36px;height:36px;border-radius:9px;border:1px solid var(--line);position:relative}
.hamburger span{position:absolute;left:9px;width:18px;height:2px;background:var(--ink);transition:.2s}
.hamburger span:nth-child(1){top:12px}
.hamburger span:nth-child(2){top:17px}
.hamburger span:nth-child(3){top:22px}
.mobile-menu{display:none;flex-direction:column;gap:2px;padding:10px 0 16px;border-top:1px solid var(--line)}
.mobile-menu a{padding:11px 4px;font-size:15px;color:var(--soft);border-bottom:1px solid rgba(255,255,255,.04)}
.mobile-menu a:last-child{border-bottom:none;color:var(--brand);font-weight:600}
.mobile-menu.open{display:flex}

/* 02 首屏 */
.hero{padding:70px 0 92px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1fr .9fr;gap:52px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:7px;font-size:12.5px;color:var(--amber);
  border:1px solid var(--line);border-radius:999px;padding:4px 13px 4px 11px;margin-bottom:20px;
  letter-spacing:.5px;
}
.eyebrow::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--amber)}
.hero h1{
  font-size:clamp(38px,5.4vw,58px);line-height:1.15;font-weight:800;letter-spacing:-.5px;
  margin-bottom:20px;
}
.hero h1 .grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:15px;line-height:1.85;color:var(--soft);max-width:480px;margin-bottom:26px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:38px}
.btn-primary{
  display:inline-block;padding:13px 28px;border-radius:999px;
  background:var(--grad);color:#2A0E1A;font-weight:700;font-size:15px;
  box-shadow:0 0 22px rgba(255,122,69,.18);transition:transform .2s;
}
.btn-primary:hover{transform:translateY(-2px)}
.btn-ghost{
  display:inline-block;padding:12px 26px;border-radius:999px;
  border:1px solid var(--line);color:var(--ink);font-size:15px;transition:border-color .2s,transform .2s;
}
.btn-ghost:hover{border-color:var(--brand);transform:translateY(-2px)}
.hero-stats{display:flex;gap:34px;flex-wrap:wrap}
.stat-num{font-size:28px;font-weight:800;color:var(--ink);line-height:1.2;letter-spacing:-.5px}
.stat-num .unit{font-size:14px;font-weight:600;color:var(--muted);margin-left:2px}
.stat-label{font-size:12.5px;color:var(--muted);margin-top:2px}

.hero-visual{position:relative;display:flex;justify-content:center;align-items:center;min-height:520px}
.glow{position:absolute;border-radius:50%;filter:blur(110px);opacity:.5;pointer-events:none}
.glow-a{width:280px;height:280px;background:#FF7A45;top:6%;left:2%}
.glow-b{width:260px;height:260px;background:#FF3D7F;bottom:4%;right:0}
.phone-frame{
  position:relative;width:min(300px,60vw);aspect-ratio:9/19;border-radius:36px;
  background:#15101A;border:5px solid #2A2230;overflow:hidden;
  box-shadow:0 30px 80px rgba(0,0,0,.65);
  transform:rotate(-3deg);
}
.phone-frame::after{
  content:"";position:absolute;inset:0;border-radius:32px;pointer-events:none;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.06);
}
.phone-inner{position:absolute;inset:0;overflow:hidden;border-radius:31px}
.phone-inner img{width:100%;height:100%;object-fit:cover}
.phone-overlay{
  position:absolute;left:0;right:0;bottom:0;padding:40px 14px 18px;
  background:linear-gradient(180deg,transparent 30%,rgba(0,0,0,.85));
  color:#fff;z-index:2;
}
.phone-drama{font-size:15px;font-weight:700;margin-bottom:9px;letter-spacing:.3px}
.progress-bar{height:4px;border-radius:4px;background:rgba(255,255,255,.22);overflow:hidden}
.progress-fill{height:100%;width:46%;border-radius:4px;background:var(--grad)}
.phone-shine{
  position:absolute;top:-60%;left:-60%;width:60%;height:220%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.24),transparent);
  transform:rotate(18deg);pointer-events:none;z-index:3;
}
.phone-shine.play{animation:shineSweep 2.2s ease-in-out forwards}
@keyframes shineSweep{0%{left:-70%}100%{left:130%}}

/* 03 产品现场 */
.section-pad{padding:92px 0}
.section-head{max-width:620px;margin-bottom:40px}
.section-head h2{font-size:clamp(24px,3vw,32px);font-weight:800;letter-spacing:-.3px;margin-bottom:10px}
.section-head p{font-size:15px;color:var(--soft);line-height:1.85}
.mini-tag{font-size:12.5px;color:var(--brand);letter-spacing:1.5px;text-transform:uppercase;margin-bottom:10px;font-weight:600;display:block}
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.scene-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r);
  padding:22px 18px;transition:transform .2s,box-shadow .2s;
}
.scene-card:hover{transform:translateY(-4px);box-shadow:0 0 22px rgba(255,122,69,.18)}
.scene-phone{
  position:relative;width:100%;aspect-ratio:9/19;border-radius:22px;overflow:hidden;
  background:#1D1726;margin-bottom:16px;border:3px solid #2A2230;
}
.scene-phone img{width:100%;height:100%;object-fit:cover}
.scene-phone::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(0,0,0,.8));
}
.scene-shine{
  position:absolute;top:-60%;left:-80%;width:55%;height:220%;z-index:3;pointer-events:none;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.22),transparent);
  transform:rotate(18deg);transition:left .6s ease;
}
.scene-card:hover .scene-shine{left:130%}
.scene-num{
  font-size:40px;font-weight:800;line-height:1;color:transparent;
  -webkit-text-stroke:1px rgba(255,122,69,.55);margin-bottom:8px;
}
.scene-title{font-size:16px;font-weight:600;margin-bottom:5px}
.scene-desc{font-size:13px;color:var(--muted);line-height:1.7}

/* 04 六大能力 */
.cap-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.cap-card{
  background:var(--panel);border:1px solid rgba(255,255,255,.06);border-radius:var(--r);
  padding:26px 22px;transition:border-color .2s,box-shadow .2s;
}
.cap-card:hover{border-color:var(--brand);box-shadow:0 0 22px rgba(255,122,69,.18)}
.cap-icon{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(255,122,69,.1);color:var(--brand);margin-bottom:16px;transition:color .2s;
}
.cap-card:hover .cap-icon{color:var(--amber)}
.cap-card h3{font-size:17px;font-weight:600;margin-bottom:7px}
.cap-card p{font-size:13.5px;color:var(--soft);line-height:1.8}

/* 05 三步上手 */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;position:relative}
.steps::before{
  content:"";position:absolute;top:22px;left:12%;right:12%;height:1px;
  background-image:linear-gradient(to right,var(--line) 50%,transparent 0);
  background-size:12px 1px;background-repeat:repeat-x;
}
.step{position:relative;text-align:left}
.step-dot{
  width:44px;height:44px;border-radius:50%;background:var(--grad);color:#2A0E1A;
  font-weight:800;font-size:15px;display:flex;align-items:center;justify-content:center;
  margin-bottom:18px;position:relative;z-index:2;box-shadow:0 0 22px rgba(255,61,127,.22);
}
.step h3{font-size:17px;font-weight:600;margin-bottom:6px}
.step p{font-size:13.5px;color:var(--soft);line-height:1.8;margin-bottom:10px}
.step-state{font-size:12px;color:var(--brand);letter-spacing:.5px}
.cta-band{
  margin-top:44px;background:var(--panel-2);border:1px solid var(--line);border-radius:var(--r);
  padding:24px 28px;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
}
.cta-band p{font-size:15px;color:var(--soft)}
.cta-band p b{color:var(--ink);font-weight:600}

/* 06 热播榜 */
.rank-scroll{display:flex;gap:18px;overflow-x:auto;padding-bottom:14px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch}
.rank-scroll::-webkit-scrollbar{height:5px}
.rank-scroll::-webkit-scrollbar-thumb{background:rgba(255,122,69,.35);border-radius:5px}
.rank-card{flex:0 0 200px;scroll-snap-align:start;position:relative}
.rank-cover{
  position:relative;aspect-ratio:3/4;border-radius:14px;overflow:hidden;background:#1D1726;
}
.rank-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s}
.rank-card:hover .rank-cover img{transform:scale(1.05)}
.rank-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 45%,rgba(0,0,0,.82));
}
.rank-num{
  position:absolute;top:6px;left:10px;z-index:2;
  font-size:44px;font-weight:800;line-height:1;color:transparent;
  -webkit-text-stroke:1.5px rgba(255,255,255,.85);
}
.rank-num.top{background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-stroke:0;color:transparent}
.rank-meta{position:absolute;left:0;right:0;bottom:0;padding:30px 12px 11px;z-index:2}
.rank-name{font-size:14px;font-weight:600;color:#fff;margin-bottom:2px}
.rank-hot{font-size:11.5px;color:rgba(255,255,255,.65)}

/* 07 用户评价 */
.review-scroll{display:flex;gap:16px;overflow-x:auto;padding-bottom:14px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch}
.review-scroll::-webkit-scrollbar{height:5px}
.review-scroll::-webkit-scrollbar-thumb{background:rgba(255,61,127,.35);border-radius:5px}
.review-card{
  flex:0 0 68vw;max-width:420px;scroll-snap-align:center;
  background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:24px 22px;
}
.review-quote{font-size:32px;line-height:1;color:var(--brand);opacity:.55;margin-bottom:8px;font-family:Georgia,serif}
.review-text{font-size:14px;color:var(--soft);line-height:1.85;margin-bottom:16px}
.review-meta{font-size:12px;color:var(--muted)}

/* 08 FAQ */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.faq-item{background:var(--panel);border:1px solid rgba(255,255,255,.06);border-radius:14px;overflow:hidden;transition:border-color .2s}
.faq-item.open{border-color:var(--line)}
.faq-btn{
  width:100%;display:flex;align-items:flex-start;gap:12px;padding:18px 18px;text-align:left;
}
.faq-index{font-size:12px;color:var(--muted);font-weight:600;padding-top:2px;flex-shrink:0}
.faq-q{flex:1;font-size:15px;font-weight:600;line-height:1.6}
.faq-plus{
  flex-shrink:0;width:20px;height:20px;position:relative;transition:transform .2s;margin-top:2px;
}
.faq-plus::before,.faq-plus::after{
  content:"";position:absolute;background:var(--soft);border-radius:2px;transition:background .2s;
}
.faq-plus::before{left:0;top:9px;width:20px;height:2px}
.faq-plus::after{left:9px;top:0;width:2px;height:20px}
.faq-item.open .faq-plus{transform:rotate(45deg)}
.faq-item.open .faq-plus::before,.faq-item.open .faq-plus::after{background:var(--brand)}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .3s ease;
  padding:0 18px 0 44px;
}
.faq-item.open .faq-a{max-height:240px}
.faq-a-inner{font-size:13.5px;color:var(--soft);line-height:1.8;padding-bottom:18px}

/* 09 下载 CTA */
.download{
  width:100%;background:var(--grad);border-radius:26px;padding:60px 40px;
  text-align:center;position:relative;overflow:hidden;margin:0 auto;max-width:1160px;
  box-shadow:0 0 80px rgba(255,61,127,.22);
}
.download::before{
  content:"";position:absolute;inset:-40%;background:radial-gradient(circle,rgba(255,255,255,.22),transparent 62%);
  animation:breathe 5s ease-in-out infinite;pointer-events:none;
}
@keyframes breathe{0%,100%{transform:scale(1);opacity:.6}50%{transform:scale(1.1);opacity:1}}
.download h2{font-size:clamp(24px,3.4vw,36px);font-weight:800;color:#1A0A12;line-height:1.25;margin-bottom:14px;position:relative}
.download p{font-size:15px;color:rgba(26,10,18,.82);max-width:480px;margin:0 auto 28px;position:relative;line-height:1.8}
.download-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;position:relative;margin-bottom:20px}
.btn-white{
  display:inline-block;padding:13px 30px;border-radius:999px;background:#fff;color:#1A0A12;
  font-weight:700;font-size:15px;box-shadow:0 6px 24px rgba(0,0,0,.18);transition:transform .2s;
}
.btn-white:hover{transform:translateY(-2px)}
.btn-outline-white{
  display:inline-block;padding:12px 28px;border-radius:999px;border:1px solid rgba(255,255,255,.7);
  color:#fff;font-size:15px;transition:background .2s,transform .2s;
}
.btn-outline-white:hover{background:rgba(255,255,255,.12);transform:translateY(-2px)}
.download-ver{font-size:12.5px;color:rgba(26,10,18,.6);position:relative}

/* 10 页脚 */
.footer{border-top:1px solid var(--line);padding:56px 0 30px;background:#0B080D}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;margin-bottom:40px}
.footer-brand-name{font-size:17px;font-weight:800;margin-bottom:12px}
.footer-brand p{font-size:13px;color:var(--muted);line-height:1.85;max-width:280px}
.footer h3{font-size:13px;font-weight:600;color:var(--ink);margin-bottom:14px;letter-spacing:.4px}
.footer ul{list-style:none}
.footer li{margin-bottom:9px}
.footer li a{font-size:13px;color:var(--muted);transition:color .2s}
.footer li a:hover{color:var(--brand)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.05);padding-top:22px;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:12px;color:var(--muted);
}
.footer-bottom .update-time{color:#5C525F}

/* 560 吸底条 */
.sticky-bar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:80;
  background:rgba(22,18,28,.94);backdrop-filter:blur(12px);border-top:1px solid var(--line);
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  align-items:center;justify-content:space-between;gap:12px;
}
.sticky-bar span{font-size:12.5px;color:var(--soft);line-height:1.5}
.sticky-bar span b{color:var(--ink);font-weight:600}
.sticky-btn{
  flex-shrink:0;background:var(--grad);color:#2A0E1A;font-weight:700;font-size:13.5px;
  padding:9px 18px;border-radius:999px;box-shadow:0 0 22px rgba(255,122,69,.22);
}

/* 滚动渐入 */
.reveal{opacity:1;transform:translateY(16px);transition:transform .5s ease,opacity .5s ease}
.reveal.in{transform:translateY(0);opacity:1}
@media (prefers-reduced-motion:reduce){
  .reveal,.reveal.in{transform:none;transition:none}
  .announce-track,.phone-shine,.download::before{animation:none}
  .scene-shine{transition:none}
  *{scroll-behavior:auto}
}

/* 768 */
@media (max-width:1024px){
  .hero-grid{gap:36px}
  .scene-grid{grid-template-columns:repeat(2,1fr)}
  .cap-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr}
  .hero-visual{min-height:460px;margin-top:10px}
  .nav-links{display:none}
  .nav-cta{display:none}
  .hamburger{display:block}
  .hero h1{font-size:clamp(34px,7vw,46px)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .section-pad{padding:54px 0}
  .hero{padding:46px 0 54px}
  .cap-grid{grid-template-columns:1fr}
  .scene-grid{
    display:flex;overflow-x:auto;scroll-snap-type:x mandatory;gap:14px;padding-bottom:12px;
    margin:0 -20px;padding-left:20px;padding-right:20px;
  }
  .scene-grid::-webkit-scrollbar{height:4px}
  .scene-grid::-webkit-scrollbar-thumb{background:rgba(255,122,69,.35);border-radius:4px}
  .scene-card{flex:0 0 62vw;scroll-snap-align:start}
  .faq-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr;gap:22px}
  .steps::before{display:none}
  .cta-band{flex-direction:column;align-items:flex-start}
  .hero-stats{gap:24px}
  .rank-card{flex:0 0 46vw}
  .download{padding:44px 22px;border-radius:20px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
}
@media (max-width:560px){
  :root{--wrap:calc(100% - 32px)}
  .sticky-bar{display:flex}
  .footer{padding-bottom:84px}
  .nav-inner{height:58px}
  .brand-logo{height:28px}
  .brand-name{font-size:16px}
  .hero-sub{font-size:14px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .btn-primary,.btn-ghost{text-align:center}
  .download-actions{flex-direction:column;align-items:stretch}
  .btn-white,.btn-outline-white{text-align:center}
  .accent{display:none}
}