/* 沉浸式产品展厅风 */
:root{
  --red:#e6252d;--red-d:#c81c26;--red-s:#ffe1df;--gold:#e0a83e;
  --ink:#14171a;--muted:#565c66;--soft:#8a909a;--line:#ececef;
  --bg:#0a0c12;--panel:#12151f;--card:#171b28;--light:#f7f7f9;--white:#fff;
  --up:#e6272e;--down:#16b872;--max:1200px;--r:18px;
  --shadow:0 18px 50px rgba(0,0,0,.35);--glow:0 0 40px rgba(230,37,45,.25);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;background:var(--bg);color:#e8eaef;line-height:1.75;font-size:15px}
a{color:inherit;text-decoration:none}img,svg{display:block;max-width:100%}ul{list-style:none}button{font-family:inherit}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
section{padding:72px 0}

.t-nav{position:sticky;top:0;z-index:100;background:rgba(10,12,18,.88);backdrop-filter:none;border-bottom:1px solid rgba(255,255,255,.06)}
.t-nav-inner{max-width:var(--max);margin:0 auto;padding:0 24px;height:68px;display:flex;align-items:center;justify-content:space-between}
.t-logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;color:#fff}
.t-logo img{height:32px;width:auto;border-radius:8px;object-fit:cover}
.t-links{display:flex;align-items:center;gap:5px}
.t-links a{padding:9px 16px;font-size:14px;font-weight:600;color:rgba(255,255,255,.7);border-radius:8px}
.t-links a:hover{background:rgba(255,255,255,.06);color:#fff}
.t-links a.t-active{background:var(--red);color:#fff!important}
.t-links .t-sep{width:1px;height:18px;background:rgba(255,255,255,.15);margin:0 6px}
.t-cta-ghost{border:1.5px solid var(--red)!important;color:#fff!important;font-weight:700!important;padding:8px 18px!important;border-radius:999px!important;background:rgba(230,37,45,.12)!important}

.t-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:15px 32px;font-size:15px;font-weight:700;border-radius:999px;border:none;cursor:pointer;transition:.15s}
.t-btn-red{background:var(--red);color:#fff;box-shadow:0 14px 30px rgba(230,37,45,.4)}
.t-btn-red:hover{background:var(--red-d);transform:translateY(-2px)}
.t-btn-ghost-light{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.35)}
.t-btn-ghost-light:hover{border-color:#fff;background:rgba(255,255,255,.08)}
.t-btn-outline{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.18)}
.t-btn-outline:hover{border-color:var(--red);color:#fff}
.t-btn-sm{padding:11px 22px;font-size:13.5px}.t-btn-block{width:100%}

.t-head{text-align:center;max-width:680px;margin:0 auto 46px}
.t-head .tag{display:inline-block;color:var(--gold);font-size:13px;font-weight:700;letter-spacing:1px;margin-bottom:10px}
.t-head h2{font-size:30px;font-weight:800;margin-bottom:10px;color:#fff}
.t-head p{color:rgba(255,255,255,.55);font-size:14px}

/* Hero exhibition */
.t-hero{position:relative;overflow:hidden;padding:80px 0 70px;background:
  radial-gradient(ellipse at 18% -10%,#1b2438 0%,transparent 50%),
  radial-gradient(circle at 88% 20%,rgba(230,37,45,.28),transparent 42%),
  linear-gradient(180deg,#090b12,#0d1018 60%,#10131c)}
.t-skyline{position:absolute;left:0;bottom:0;width:100%;height:190px;opacity:.5}
.t-hero-glow{position:absolute;right:-100px;top:40px;width:460px;height:460px;background:radial-gradient(circle,rgba(230,37,45,.3),transparent 70%);filter:blur(8px);pointer-events:none}
.t-floor{position:absolute;left:0;right:0;bottom:0;height:120px;background:linear-gradient(180deg,transparent,rgba(0,0,0,.45));pointer-events:none}
.t-hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.t-hero h1{font-size:36px;font-weight:800;line-height:1.35;margin-bottom:12px;color:#fff}
.t-hero h1 .sep{color:rgba(255,255,255,.28);margin:0 10px;font-weight:400}
.t-hero h1 .light{font-weight:500;color:rgba(255,255,255,.85)}
.t-hero .subtitle{color:var(--red);font-size:15.5px;font-weight:700;margin-bottom:14px}
.t-hero .intro{color:rgba(255,255,255,.62);font-size:14px;margin-bottom:22px}
.t-platform-switch{display:flex;gap:10px;margin-bottom:22px;flex-wrap:wrap}
.t-platform-switch button{padding:8px 16px;border-radius:999px;border:1.5px solid rgba(255,255,255,.16);background:rgba(255,255,255,.04);color:rgba(255,255,255,.7);font-size:13px;font-weight:600;cursor:pointer}
.t-platform-switch button.on{background:var(--red);border-color:var(--red);color:#fff;box-shadow:var(--glow)}
.t-hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:16px}
.t-hero-meta{font-size:12.5px;color:rgba(255,255,255,.42);margin-bottom:26px}
.t-update h4{font-size:13.5px;margin-bottom:10px;color:rgba(255,255,255,.85)}
.t-update ul{display:grid;gap:8px}
.t-update li{font-size:13px;color:rgba(255,255,255,.52);display:flex;gap:8px}
.t-update li b{flex-shrink:0;color:#ff8d88;background:rgba(230,37,45,.16);padding:1px 7px;border-radius:4px;font-size:12px}

.t-hero-visual{position:relative;perspective:1200px}
.t-pedestal{position:absolute;left:50%;bottom:-8px;transform:translateX(-50%);width:78%;height:28px;background:radial-gradient(ellipse,rgba(230,37,45,.35),transparent 70%);filter:blur(8px)}
.t-monitor{position:relative;transform:rotateY(-8deg) rotateX(4deg);background:linear-gradient(160deg,#222836,#0c0e14);border-radius:18px;padding:12px;box-shadow:var(--shadow),0 0 0 1px rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.08)}
.t-monitor-screen{background:#060810;border-radius:10px;overflow:hidden}
.t-app-topbar{display:flex;align-items:center;gap:8px;padding:10px 14px;background:#11141d;border-bottom:1px solid rgba(255,255,255,.06)}
.dot{width:8px;height:8px;border-radius:50%}.dot.r{background:#ff5f57}.dot.y{background:#febc2e}.dot.g{background:#28c840}
.t-app-tabs{display:flex;gap:14px;margin-left:12px;font-size:11px;color:#737a8a}.t-app-tabs .tab.active{color:#fff;font-weight:700}
.t-app-body{display:flex}
.t-chart-area{flex:1.7;padding:10px}.t-chart-area img{width:100%;height:168px;object-fit:cover;border-radius:8px}
.t-watchlist{flex:1;border-left:1px solid rgba(255,255,255,.06);padding:14px;font-size:11.5px}
.t-watchlist .row{display:flex;justify-content:space-between;padding:7px 0;color:#c3c8d3}
.t-watchlist .row.head{color:#626a7a;font-size:10.5px;border-bottom:1px solid rgba(255,255,255,.07)}
.up{color:var(--up)}.down{color:var(--down)}
.t-monitor-stand{width:130px;height:26px;margin:0 auto;background:linear-gradient(180deg,#1c212e,#0c0e14);border-radius:0 0 10px 10px}
.t-monitor-badge{position:absolute;left:-14px;bottom:34px;background:var(--red);color:#fff;font-size:12.5px;font-weight:800;padding:10px 18px;border-radius:8px;transform:rotate(-3deg);box-shadow:var(--glow)}

/* exhibition hall platforms */
.t-hall{background:linear-gradient(180deg,#0d1018,#12151f)}
.t-plat-main{display:flex;align-items:center;gap:34px;background:linear-gradient(135deg,rgba(230,37,45,.14),rgba(255,255,255,.03));border:1px solid rgba(230,37,45,.35);border-radius:22px;padding:32px 40px;box-shadow:var(--shadow);position:relative;margin-bottom:22px;overflow:hidden}
.t-plat-main::before{content:"";position:absolute;inset:auto -20% -40% auto;width:220px;height:220px;background:radial-gradient(circle,rgba(224,168,62,.2),transparent 70%)}
.t-plat-main .ribbon{position:absolute;top:18px;right:-34px;background:var(--red);color:#fff;font-size:12px;font-weight:800;padding:5px 40px;transform:rotate(35deg)}
.t-plat-main .ico{width:74px;height:74px;border-radius:20px;background:var(--red);display:flex;align-items:center;justify-content:center;flex-shrink:0;color:#fff;font-size:28px;font-weight:800;box-shadow:var(--glow)}
.t-plat-main .content{flex:1}.t-plat-main .badge-top{display:inline-block;font-size:12px;font-weight:700;color:#ffb4b0;background:rgba(230,37,45,.2);padding:3px 10px;border-radius:6px;margin-bottom:8px}
.t-plat-main h3{font-size:22px;margin-bottom:6px;color:#fff}.t-plat-main p{color:rgba(255,255,255,.55);font-size:14px}
.t-plat-main .meta{display:flex;gap:18px;margin-top:12px;font-size:12.5px;color:rgba(255,255,255,.45);flex-wrap:wrap}
.t-plat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.t-plat-card{background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.08);border-radius:16px;padding:26px 22px;text-align:center;transition:.2s;box-shadow:0 10px 30px rgba(0,0,0,.2)}
.t-plat-card:hover{transform:translateY(-6px);border-color:rgba(230,37,45,.35);box-shadow:var(--glow)}
.t-plat-card .ico{width:48px;height:48px;border-radius:14px;background:rgba(255,255,255,.06);display:flex;align-items:center;justify-content:center;margin:0 auto 14px;font-weight:800}
.t-plat-card h4{font-size:15px;margin-bottom:6px;color:#fff}.t-plat-card p{font-size:12.5px;color:rgba(255,255,255,.5);margin-bottom:18px;min-height:34px}

/* 3D exhibit stands for features */
.t-exhibits{background:#0a0c12}
.t-feat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.t-feat-row .item{text-align:center;background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.01));border:1px solid rgba(255,255,255,.08);border-radius:18px;padding:28px 18px;box-shadow:0 16px 40px rgba(0,0,0,.25);position:relative}
.t-feat-row .item::after{content:"";position:absolute;left:18%;right:18%;bottom:-10px;height:14px;background:radial-gradient(ellipse,rgba(0,0,0,.45),transparent 70%);filter:blur(4px)}
.t-feat-ico{width:58px;height:58px;border-radius:50%;background:rgba(230,37,45,.15);border:1px solid rgba(230,37,45,.35);display:flex;align-items:center;justify-content:center;margin:0 auto 16px;color:#ff8d88;font-weight:800}
.t-feat-row h3{font-size:16px;margin-bottom:8px;color:#fff}.t-feat-row p{font-size:13px;color:rgba(255,255,255,.5)}

.t-detail{display:flex;align-items:center;gap:50px;padding:44px 0}
.t-detail.reverse{flex-direction:row-reverse}
.t-detail .media,.t-detail .text{flex:1;min-width:0}
.t-stage{background:linear-gradient(160deg,#1a1f2e,#0c0e14);border-radius:20px;padding:14px;border:1px solid rgba(255,255,255,.08);box-shadow:var(--shadow);position:relative}
.t-stage::before{content:"";position:absolute;left:12%;right:12%;bottom:-12px;height:18px;background:radial-gradient(ellipse,rgba(230,37,45,.28),transparent 70%);filter:blur(6px)}
.t-stage img{width:100%;border-radius:12px}
.t-detail h3{font-size:23px;font-weight:800;display:flex;align-items:center;gap:10px;margin-bottom:16px;flex-wrap:wrap;color:#fff}
.t-detail h3 .dot{color:var(--red)}
.t-detail .tag-lv2{display:inline-block;background:rgba(230,37,45,.16);color:#ffb4b0;font-size:12px;font-weight:700;padding:4px 10px;border-radius:6px}
.t-detail p{color:rgba(255,255,255,.65);font-size:14.5px;line-height:1.95}
.t-detail p .hl{color:#ff8d88;font-weight:700}
.t-divider{height:1px;background:rgba(255,255,255,.08)}

.t-more{max-width:980px;margin:0 auto;text-align:center}
.t-more summary{list-style:none;cursor:pointer;color:#ffb4b0;font-weight:700;font-size:14px;display:inline-flex;padding:11px 22px;border:1.5px solid rgba(230,37,45,.35);border-radius:999px}
.t-more-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:30px;text-align:left}
.t-more-card{background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.08);border-radius:16px;padding:22px}
.t-more-card h4{margin-bottom:8px;color:#fff}.t-more-card p{font-size:12.5px;color:rgba(255,255,255,.5)}

.t-community{background:linear-gradient(135deg,#2c2140 0%,#6a3b52 45%,#c96b4f 78%,#e6a45c 100%);text-align:center}
.t-community h2{font-size:28px;margin-bottom:10px;color:#fff}
.t-community-inner>p{color:rgba(255,255,255,.78);margin-bottom:36px}
.t-phones{display:flex;justify-content:center;gap:28px;flex-wrap:wrap}
.t-phone{width:230px;background:#12141b;border-radius:30px;padding:10px;box-shadow:var(--shadow);text-align:left}
.t-phone .notch{width:64px;height:16px;background:#12141b;border-radius:0 0 10px 10px;margin:0 auto}
.t-phone .screen{background:#191c26;border-radius:22px;overflow:hidden;margin-top:-14px;padding-top:16px}
.feed-item{padding:12px 14px;border-bottom:1px solid rgba(255,255,255,.06)}
.feed-item .stock{display:flex;justify-content:space-between;font-size:12px;font-weight:700;margin-bottom:4px}
.feed-item .txt{font-size:11.5px;color:rgba(255,255,255,.6)}
.chg.up{color:var(--up)}.chg.down{color:var(--down)}

.t-final{background:linear-gradient(160deg,#12060a,#2a0c12 50%,#4a1018);text-align:center;padding:84px 0}
.t-final h2{font-size:40px;font-weight:900;margin-bottom:16px;color:#fff}
.t-final .lead{color:rgba(255,255,255,.68);max-width:720px;margin:0 auto 28px}
.t-trust{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;margin-bottom:28px}
.t-trust span{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);padding:10px 18px;border-radius:999px;font-size:13px;font-weight:700}
.t-final-actions{display:flex;justify-content:center;gap:14px;flex-wrap:wrap}

.t-footer{background:#07090f;color:rgba(255,255,255,.7);padding-top:50px;padding-bottom:28px;border-top:1px solid rgba(255,255,255,.06)}
.t-qr-row{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding-bottom:34px;border-bottom:1px solid rgba(255,255,255,.08)}
.t-qr-card{text-align:center}
.t-qr-fake{width:100px;height:100px;margin:0 auto 12px;border-radius:12px;background:#fff;display:grid;place-items:center;font-weight:800;font-size:28px}
.t-qr-card .lbl{font-size:12.5px}
.t-footer-links{display:flex;flex-wrap:wrap;gap:8px 22px;justify-content:center;padding:28px 0;border-bottom:1px solid rgba(255,255,255,.08)}
.t-footer-info{display:flex;flex-wrap:wrap;gap:12px 28px;justify-content:center;padding:20px 0;font-size:12.5px;color:rgba(255,255,255,.45)}
.t-footer-bottom{text-align:center;font-size:12px;color:rgba(255,255,255,.38);line-height:1.9}
.t-footer-badges{display:flex;justify-content:center;gap:18px;flex-wrap:wrap;margin-top:12px}

.t-dl-hero{padding:56px 0;background:linear-gradient(135deg,#141824,#0a0c12)}
.t-dl-hero .wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.t-dl-hero h1{font-size:28px;font-weight:800;margin-bottom:12px;color:#fff}
.t-dl-hero p{color:rgba(255,255,255,.6);margin-bottom:20px}
.t-tags{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:22px;font-size:12.5px}
.t-tags span{background:rgba(255,255,255,.08);padding:6px 14px;border-radius:999px}
.t-win-panel{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.1);border-radius:16px;padding:22px;font-size:13px}
.t-win-panel li{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px dashed rgba(255,255,255,.12)}
.t-win-panel li:last-child{border-bottom:none}
.t-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.t-step{text-align:center;background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.08);border-radius:16px;padding:24px 16px}
.t-step .circle{width:40px;height:40px;border-radius:50%;background:var(--red);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;margin:0 auto 12px}
.t-step h3{color:#fff;margin-bottom:8px}.t-step p{color:rgba(255,255,255,.5);font-size:13px}
.t-faq{max-width:780px;margin:0 auto}
.t-faq-item{background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.08);border-radius:12px;margin-bottom:12px;overflow:hidden}
.t-faq-item input{display:none}
.t-faq-q{display:flex;justify-content:space-between;align-items:center;padding:18px 22px;cursor:pointer;font-weight:700;font-size:15px;color:#fff}
.t-faq-a{max-height:0;overflow:hidden;transition:max-height .25s;padding:0 22px;font-size:14px;color:rgba(255,255,255,.55)}
.t-faq-item input:checked~.t-faq-a{max-height:400px;padding:0 22px 20px}
.t-page-hero{padding:48px 0 10px;text-align:center}
.t-page-hero h1{font-size:30px;font-weight:800;margin-bottom:10px;color:#fff}
.t-page-hero p{color:rgba(255,255,255,.55);max-width:680px;margin:0 auto}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:center;margin-top:36px}
.img-card{border-radius:16px;width:100%;box-shadow:var(--shadow);border:1px solid rgba(255,255,255,.08)}

@media (max-width:960px){
  .t-hero-inner,.t-dl-hero .wrap,.two-col{grid-template-columns:1fr}
  .t-hero-visual{order:-1;max-width:480px;margin:0 auto 20px}
  .t-monitor{transform:none}
  .t-links{display:none}
  .t-plat-main{flex-direction:column;text-align:center}
  .t-plat-grid,.t-more-grid,.t-qr-row,.t-feat-row{grid-template-columns:repeat(2,1fr)}
  .t-detail,.t-detail.reverse{flex-direction:column;gap:28px}
  .t-steps{grid-template-columns:1fr}
  .t-final h2{font-size:30px}
}
@media (max-width:600px){
  .t-hero h1{font-size:26px}
  .t-plat-grid,.t-more-grid,.t-qr-row,.t-feat-row{grid-template-columns:1fr}
  section{padding:50px 0}
}

/* perf */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}
.site-header{backdrop-filter:none!important;-webkit-backdrop-filter:none!important}
.feat-media img,.mock-chart img,.feat-row img{content-visibility:auto}
.community,.site-footer{content-visibility:auto;contain-intrinsic-size:800px}
img{height:auto}