:root{
  --ink:#171411;
  --ink-2:#2b2722;
  --paper:#f5f1e9;
  --paper-2:#ebe4d8;
  --white:#fffdf8;
  --gold:#c6a25d;
  --gold-2:#e0c58e;
  --line:rgba(23,20,17,.14);
  --muted:#6f685f;
  --shadow:0 28px 80px rgba(34,27,18,.14);
  --radius:28px;
  --shell:min(1180px,calc(100% - 40px));
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:Arial,"Microsoft YaHei","PingFang SC",sans-serif;font-size:16px;line-height:1.72;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,a{ -webkit-tap-highlight-color:transparent }
:focus-visible{outline:3px solid #d7ad5a;outline-offset:4px;border-radius:6px}
.shell{width:var(--shell);margin:0 auto}
.skip-link{position:fixed;left:16px;top:-100px;z-index:9999;background:#fff;color:#111;padding:10px 14px;border-radius:8px}.skip-link:focus{top:14px}

.site-header{position:sticky;top:0;z-index:100;background:rgba(18,16,14,.94);border-bottom:1px solid rgba(255,255,255,.08);backdrop-filter:blur(14px)}
.header-inner{min-height:78px;display:flex;align-items:center;gap:32px}
.brand{display:flex;align-items:center;gap:12px;min-width:max-content}.brand img{width:44px;height:44px;object-fit:contain;border-radius:12px}.brand-copy{display:grid;line-height:1.15}.brand-copy strong{font-size:18px;letter-spacing:.08em;color:#f5e6c7}.brand-copy small{margin-top:4px;color:#aaa197;font-size:12px}
.desktop-nav{display:flex;align-items:center;gap:26px;margin-left:auto}.desktop-nav a{color:#c9c1b8;font-size:14px}.desktop-nav a:hover{color:#fff}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:52px;padding:0 24px;border-radius:999px;font-weight:700;letter-spacing:.01em;transition:transform .2s ease,box-shadow .2s ease,background .2s ease}.btn:hover{transform:translateY(-2px)}
.btn-small{min-height:42px;padding:0 18px;background:var(--gold);color:#17120b;font-size:14px}.btn-primary{background:var(--gold);color:#18120b;box-shadow:0 16px 34px rgba(198,162,93,.25)}.btn-primary:hover{background:#d4b36f;box-shadow:0 20px 40px rgba(198,162,93,.31)}
.btn-secondary{background:var(--ink);color:#fff}.btn-secondary:hover{background:#2a241e}

.hero{position:relative;overflow:hidden;background:var(--ink);color:#fff;padding:86px 0 78px}.hero:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 76% 20%,rgba(198,162,93,.20),transparent 30%),linear-gradient(120deg,rgba(255,255,255,.025) 1px,transparent 1px);background-size:auto,42px 42px;pointer-events:none}.hero-grid{position:relative;display:grid;grid-template-columns:1.02fr .98fr;gap:70px;align-items:center}
.eyebrow,.kicker{margin:0 0 16px;color:var(--gold-2);font-size:12px;font-weight:800;letter-spacing:.18em}.hero h1{margin:0;max-width:720px;font-size:clamp(44px,5.2vw,76px);line-height:1.05;letter-spacing:-.045em}.hero h1 span{display:inline-block;margin-top:12px;color:#dcd3c6;font-size:.56em;line-height:1.22;letter-spacing:-.025em;font-weight:600}.hero-lead{max-width:690px;margin:28px 0 0;color:#c2bbb1;font-size:18px;line-height:1.85}.hero-actions{display:flex;align-items:center;gap:22px;margin-top:34px;flex-wrap:wrap}.text-link{color:#efe4d2;font-weight:700}.text-link span{display:inline-block;margin-left:6px}.platform-list{display:flex;gap:10px;flex-wrap:wrap;padding:0;margin:30px 0 0;list-style:none}.platform-list li{padding:8px 12px;border:1px solid rgba(255,255,255,.14);border-radius:999px;color:#bdb5aa;font-size:13px;background:rgba(255,255,255,.03)}.device-hint{margin:16px 0 0;color:#988f84;font-size:13px}
.hero-media{position:relative;padding:18px 0 30px}.hero-frame{position:relative;border-radius:30px;overflow:hidden;box-shadow:0 34px 90px rgba(0,0,0,.46);border:1px solid rgba(255,255,255,.11);background:#0d0c0b;transform:rotate(-1.2deg)}.hero-frame:after{content:"";position:absolute;inset:0;box-shadow:inset 0 0 0 1px rgba(255,255,255,.08);border-radius:inherit;pointer-events:none}.hero-frame img{width:100%;min-height:390px;object-fit:cover}.hero-note{position:absolute;right:-18px;bottom:0;display:grid;gap:3px;padding:16px 20px;background:var(--white);color:var(--ink);border-radius:16px;box-shadow:var(--shadow)}.hero-note span{font-size:10px;letter-spacing:.18em;color:#8a7653;font-weight:800}.hero-note strong{font-size:15px}

.quick-facts{background:#e7ded0;border-bottom:1px solid rgba(34,27,18,.08)}.fact-row{display:grid;grid-template-columns:repeat(4,1fr)}.fact-row>div{display:flex;align-items:center;gap:14px;min-height:108px;padding:18px 24px;border-right:1px solid rgba(34,27,18,.10)}.fact-row>div:first-child{border-left:1px solid rgba(34,27,18,.10)}.fact-row span{font-size:12px;font-weight:800;color:#a27d3e;letter-spacing:.12em}.fact-row p{margin:0;color:#6f665c;font-size:13px;line-height:1.5}.fact-row strong{display:block;color:#27221d;font-size:15px;margin-bottom:2px}

.section{padding:110px 0}.section-head{margin-bottom:44px}.split-head,.ios-head{display:grid;grid-template-columns:1.1fr .9fr;gap:80px;align-items:end}.section-head h2,.flow-copy h2,.band-copy h2,.visual-copy h2,.faq-intro h2,.final-cta h2{margin:0;font-size:clamp(34px,4vw,54px);line-height:1.16;letter-spacing:-.035em}.section-head>p{margin:0;color:var(--muted);font-size:16px}

.devices{background:#fffaf1}.device-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:18px}.device-card{position:relative;min-height:450px;padding:32px;border-radius:26px;border:1px solid var(--line);display:flex;flex-direction:column;overflow:hidden}.device-index{font-size:52px;font-weight:900;line-height:1;letter-spacing:-.06em;opacity:.22}.device-card h3{margin:36px 0 12px;font-size:25px;line-height:1.2}.device-card p{margin:0 0 20px}.device-card ul{padding-left:18px;margin:0 0 28px}.device-card li{margin:7px 0}.device-card>a{margin-top:auto;display:flex;align-items:center;justify-content:space-between;padding-top:20px;border-top:1px solid currentColor;font-weight:800}.device-card-dark{background:#1a1714;color:#e8dfd2}.device-card-dark p,.device-card-dark li{color:#aaa197}.device-card-gold{background:#c6a25d;color:#1a1611}.device-card-gold p,.device-card-gold li{color:#4f412d}.device-card-light{background:#f1ece3}.device-card-light p,.device-card-light li{color:#6d655b}

.install-flow{background:var(--paper)}.flow-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:74px;align-items:start}.section-intro{color:var(--muted);font-size:17px;margin:20px 0 32px}.steps-list{list-style:none;padding:0;margin:0 0 34px;border-top:1px solid var(--line)}.steps-list li{display:grid;grid-template-columns:54px 1fr;gap:18px;padding:22px 0;border-bottom:1px solid var(--line)}.steps-list li>span{font-size:11px;font-weight:800;color:#a98548;letter-spacing:.12em}.steps-list h3{margin:0 0 5px;font-size:18px}.steps-list p{margin:0;color:var(--muted);font-size:14px}.flow-gallery{display:grid;grid-template-columns:1fr 1fr;gap:16px;position:sticky;top:108px}.flow-gallery figure{margin:0;background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden;box-shadow:0 18px 45px rgba(40,30,18,.08)}.flow-gallery figure.gallery-main{grid-column:1/-1}.flow-gallery img{width:100%;height:220px;object-fit:cover;background:#ddd4c8}.flow-gallery .gallery-main img{height:360px}.flow-gallery figcaption{padding:12px 15px;color:#6e655a;font-size:12px}

.ios-section{background:#171411;color:#fff}.ios-head>p{color:#aaa197}.ios-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.ios-strip figure{margin:0;position:relative;background:#f2eee7;border-radius:22px;overflow:hidden;color:#171411;border:1px solid rgba(255,255,255,.1)}.ios-strip figure>span{position:absolute;z-index:2;top:14px;left:14px;padding:7px 10px;background:#171411;color:#ead8b5;border-radius:999px;font-size:10px;font-weight:800;letter-spacing:.12em}.ios-strip img{width:100%;height:360px;object-fit:contain;padding:24px 15px 4px}.ios-strip figcaption{padding:14px 18px 18px;font-size:13px;font-weight:700;border-top:1px solid rgba(23,20,17,.08)}

.content-band{background:#ded4c4}.band-grid{display:grid;grid-template-columns:.82fr 1.18fr;gap:70px;align-items:center}.band-visual img{width:100%;min-height:520px;object-fit:cover;border-radius:30px;box-shadow:var(--shadow)}.check-grid{display:grid;gap:0;margin-top:34px;border-top:1px solid rgba(23,20,17,.16)}.check-grid article{display:grid;grid-template-columns:170px 1fr;gap:25px;padding:21px 0;border-bottom:1px solid rgba(23,20,17,.16)}.check-grid strong{font-size:16px}.check-grid p{margin:0;color:#665e55;font-size:14px}.inline-cta{margin-top:30px;padding:20px 22px;border-radius:18px;background:#171411;color:#fff;display:flex;align-items:center;justify-content:space-between;gap:20px}.inline-cta div{display:grid}.inline-cta span{font-size:9px;letter-spacing:.16em;color:#ad9b7d}.inline-cta strong{font-size:15px}.inline-cta a{background:var(--gold);color:#17120b;font-weight:800;padding:11px 16px;border-radius:999px;white-space:nowrap}

.visual-story{background:#fffaf1}.visual-grid{display:grid;grid-template-columns:.78fr 1.22fr;gap:68px;align-items:center}.visual-copy p:not(.kicker){color:var(--muted);font-size:16px}.anchor-pills{display:flex;flex-wrap:wrap;gap:9px;margin-top:28px}.anchor-pills a{padding:9px 13px;border:1px solid var(--line);border-radius:999px;font-size:13px;background:#fff}.wide-visual{margin:0}.wide-visual img{width:100%;min-height:450px;object-fit:cover;border-radius:28px;box-shadow:var(--shadow)}

.faq-section{background:#f0eadf}.faq-layout{display:grid;grid-template-columns:.7fr 1.3fr;gap:80px;align-items:start}.faq-intro{position:sticky;top:112px}.faq-intro p:not(.kicker){color:var(--muted);margin:20px 0 28px}.faq-list{border-top:1px solid var(--line)}details{border-bottom:1px solid var(--line)}summary{list-style:none;cursor:pointer;padding:24px 42px 24px 0;font-weight:800;font-size:18px;position:relative}summary::-webkit-details-marker{display:none}summary:after{content:"+";position:absolute;right:8px;top:21px;font-size:26px;font-weight:400;color:#9a7b45}details[open] summary:after{content:"−"}details p{margin:0;padding:0 54px 24px 0;color:var(--muted);font-size:15px}

.final-cta{padding:88px 0;background:#c7a25d}.final-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:60px;align-items:center}.final-cta .kicker{color:#5d4826}.final-cta p:not(.kicker){max-width:680px;color:#49391f}.final-cta .btn-primary{background:#171411;color:#fff;box-shadow:none}.final-grid img{width:100%;max-height:260px;object-fit:cover;border-radius:24px;box-shadow:0 24px 60px rgba(64,44,13,.18)}

.site-footer{background:#11100e;color:#b8b0a5;padding:38px 0 112px}.footer-grid{display:grid;grid-template-columns:1fr auto;gap:26px 50px;align-items:center}.footer-brand{display:flex;align-items:center;gap:12px}.footer-brand img{border-radius:12px}.footer-brand div{display:grid}.footer-brand strong{color:#eee4d5}.footer-brand span{font-size:12px}.site-footer nav{display:flex;gap:20px;font-size:13px}.site-footer nav a:hover{color:#fff}.footer-note{grid-column:1/-1;margin:0;padding-top:20px;border-top:1px solid rgba(255,255,255,.08);font-size:12px;color:#716b63;max-width:840px}

.mobile-download{display:none;position:fixed;z-index:120;left:12px;right:12px;bottom:12px;align-items:center;gap:10px;padding:10px 12px;background:rgba(18,16,14,.96);color:#fff;border:1px solid rgba(255,255,255,.12);border-radius:16px;box-shadow:0 15px 50px rgba(0,0,0,.35);backdrop-filter:blur(12px)}.mobile-download img{border-radius:9px}.mobile-download span{display:grid;line-height:1.1}.mobile-download small{font-size:10px;color:#a9a198}.mobile-download strong{font-size:13px;margin-top:3px}.mobile-download b{margin-left:auto;background:var(--gold);color:#1a140c;padding:9px 14px;border-radius:999px;font-size:13px}

@media (max-width:980px){
  :root{--shell:min(100% - 30px,760px)}
  .desktop-nav{display:none}.header-inner{min-height:70px}.header-inner>.btn{margin-left:auto}
  .hero{padding:68px 0 58px}.hero-grid,.flow-layout,.band-grid,.visual-grid,.faq-layout,.final-grid{grid-template-columns:1fr;gap:44px}.hero-media{max-width:680px}.hero-frame img{min-height:330px}.quick-facts .fact-row{grid-template-columns:1fr 1fr}.fact-row>div:nth-child(3){border-left:1px solid rgba(34,27,18,.10)}
  .split-head,.ios-head{grid-template-columns:1fr;gap:18px}.device-grid{grid-template-columns:1fr}.device-card{min-height:0}.flow-gallery,.faq-intro{position:static}.ios-strip{grid-template-columns:1fr 1fr}.ios-strip img{height:330px}.band-visual img{min-height:360px}.wide-visual img{min-height:360px}.footer-grid{grid-template-columns:1fr}.site-footer nav{flex-wrap:wrap}
}

@media (max-width:640px){
  :root{--shell:calc(100% - 24px);--radius:20px}
  body{font-size:15px}.site-header{position:sticky}.header-inner{gap:12px}.brand-copy small{display:none}.brand-copy strong{font-size:16px}.brand img{width:38px;height:38px}.header-inner>.btn{min-height:38px;padding:0 13px;font-size:12px}
  .hero{padding:52px 0 44px}.hero h1{font-size:42px}.hero h1 span{font-size:.55em}.hero-lead{font-size:16px;margin-top:22px}.hero-actions{align-items:stretch}.hero-actions .btn{width:100%}.text-link{text-align:center;width:100%}.hero-media{padding-bottom:18px}.hero-frame{border-radius:20px}.hero-frame img{min-height:245px}.hero-note{right:10px;padding:12px 14px}.platform-list{margin-top:22px}
  .fact-row{grid-template-columns:1fr!important}.fact-row>div{min-height:82px;border-left:1px solid rgba(34,27,18,.10)}
  .section{padding:76px 0}.section-head h2,.flow-copy h2,.band-copy h2,.visual-copy h2,.faq-intro h2,.final-cta h2{font-size:34px}.device-card{padding:26px}.device-card h3{margin-top:26px}.flow-gallery{grid-template-columns:1fr 1fr}.flow-gallery .gallery-main img{height:250px}.flow-gallery img{height:160px}.flow-gallery figcaption{font-size:11px;padding:10px}
  .ios-strip{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:8px;gap:12px}.ios-strip figure{min-width:76vw;scroll-snap-align:start}.ios-strip img{height:320px}.check-grid article{grid-template-columns:1fr;gap:6px}.inline-cta{align-items:flex-start;flex-direction:column}.band-visual img{min-height:300px}.wide-visual img{min-height:270px}.faq-layout{gap:36px}.final-cta{padding:66px 0}.final-grid img{max-height:220px}.site-footer{padding-bottom:98px}.mobile-download{display:flex}
}

@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.btn{transition:none}}


/* QQPK_SAFE_01_33_START */

/*
   QQPK 01-33 图片基础安全补丁
*/

html,
body {
    max-width: 100%;
    overflow-x: hidden;
}

main {
    max-width: 100%;
    overflow-x: clip;
}

main figure,
main picture {
    max-width: 100%;
}

main img {
    max-width: 100%;
}

/*
   客户端截图和安装步骤图优先完整显示。
*/

main figure img,
main [class*="stage"] img,
main [class*="screen"] img,
main [class*="preview"] img,
main [class*="visual"] img,
main [class*="gallery"] img,
main [class*="step"] img {
    object-fit: contain;
}

main img[src*="qqpk-guide.png"] {
    display: block !important;

    width: auto !important;
    max-width: 100% !important;

    height: auto !important;
    max-height: 520px !important;

    object-fit: contain !important;

    margin-left: auto !important;
    margin-right: auto !important;
}

main img[src*="qqpk-ios-step-2.png"] {
    display: block !important;

    width: auto !important;
    max-width: 100% !important;

    height: auto !important;
    max-height: 520px !important;

    object-fit: contain !important;

    margin-left: auto !important;
    margin-right: auto !important;
}

main img[src*="qqpk-ios-step-3.png"] {
    display: block !important;

    width: auto !important;
    max-width: 100% !important;

    height: auto !important;
    max-height: 520px !important;

    object-fit: contain !important;

    margin-left: auto !important;
    margin-right: auto !important;
}

main img[src*="qqpk-ios-step-4.png"] {
    display: block !important;

    width: auto !important;
    max-width: 100% !important;

    height: auto !important;
    max-height: 520px !important;

    object-fit: contain !important;

    margin-left: auto !important;
    margin-right: auto !important;
}

@media (max-width: 640px) {

    main img[src*="qqpk-guide.png"] {
        max-height: 420px !important;
    }

    main img[src*="qqpk-ios-step-2.png"] {
        max-height: 420px !important;
    }

    main img[src*="qqpk-ios-step-3.png"] {
        max-height: 420px !important;
    }

    main img[src*="qqpk-ios-step-4.png"] {
        max-height: 420px !important;
    }

}

/* QQPK_SAFE_01_33_END */