/* ============================================================
   千千静听官网 · www.ttplayer.com.cn
   非官方分享站 · 视觉基线：复古磁带/黑胶质感 + 深紫粉霓虹
   ============================================================ */
:root{
  --bg:#0b0614;
  --bg-2:#140826;
  --bg-3:#1c0e35;
  --panel:#180d2b;
  --panel-2:#22123f;
  --text:#f6f1ff;
  --text-dim:#c9b9e6;
  --text-mute:#8a7aa8;
  --brand:#7a5cff;        /* 主品牌紫 */
  --brand-2:#f262b0;     /* 粉 */
  --brand-3:#4dd0c8;     /* 青 */
  --accent:#ffd166;      /* 暖色警示 */
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --shadow:0 20px 60px rgba(0,0,0,.55);
  --radius:16px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.75;
  font-size:15px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s}
a:hover{color:var(--brand-2)}
ul{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 24px}

/* ================= Header ================= */
.header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  backdrop-filter:blur(14px);
  background:rgba(11,6,20,.72);
  border-bottom:1px solid var(--line);
  height:64px;
}
.header-inner{
  height:100%;display:flex;align-items:center;justify-content:space-between;
  max-width:1200px;margin:0 auto;padding:0 24px;
}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;letter-spacing:.5px}
.brand-logo{
  width:36px;height:36px;border-radius:10px;overflow:hidden;
  box-shadow:0 4px 14px rgba(122,92,255,.5);
  background:linear-gradient(135deg,#7a5cff,#f262b0);
  display:flex;align-items:center;justify-content:center;
}
.brand-logo img{width:100%;height:100%;display:block}
.brand-name{background:linear-gradient(90deg,#7a5cff,#f262b0);-webkit-background-clip:text;background-clip:text;color:transparent}
.brand-suffix{font-size:11px;color:var(--text-mute);font-weight:400;margin-left:6px;letter-spacing:1px}
.nav{display:flex;align-items:center;gap:6px}
.nav a{
  padding:8px 14px;border-radius:8px;font-size:14px;color:var(--text-dim);
  transition:all .2s;
}
.nav a:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav a.on{color:var(--text);background:rgba(122,92,255,.16);font-weight:600}
.nav-cta{
  padding:8px 18px;border-radius:99px;
  background:linear-gradient(135deg,#7a5cff,#f262b0);
  color:#fff!important;font-weight:600;font-size:13px;
  box-shadow:0 4px 12px rgba(122,92,255,.4);
}
.nav-cta:hover{filter:brightness(1.1)}
.hamburger{display:none;background:none;border:none;color:#fff;font-size:22px;cursor:pointer}
.mobile-nav{
  display:none;position:fixed;top:64px;left:0;right:0;z-index:99;
  background:rgba(11,6,20,.96);backdrop-filter:blur(14px);
  padding:12px 24px;border-bottom:1px solid var(--line);
  flex-direction:column;gap:4px;
}
.mobile-nav.show{display:flex}
.mobile-nav a{padding:12px 16px;border-radius:8px;color:var(--text-dim)}
.mobile-nav a:hover,.mobile-nav a.on{background:rgba(122,92,255,.16);color:#fff}

/* ================= Hero ================= */
.hero{
  position:relative;padding:130px 0 90px;
  background:
    radial-gradient(ellipse 900px 500px at 15% 20%,rgba(122,92,255,.32),transparent 60%),
    radial-gradient(ellipse 700px 500px at 85% 30%,rgba(242,98,176,.28),transparent 60%),
    radial-gradient(ellipse 500px 300px at 50% 95%,rgba(77,208,200,.14),transparent 60%),
    linear-gradient(180deg,#0b0614 0%,#140826 100%);
  overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:
    radial-gradient(2px 2px at 20% 30%,rgba(255,255,255,.45),transparent),
    radial-gradient(1px 1px at 60% 70%,rgba(255,255,255,.3),transparent),
    radial-gradient(1.5px 1.5px at 80% 20%,rgba(255,255,255,.4),transparent),
    radial-gradient(1px 1px at 40% 90%,rgba(255,255,255,.25),transparent),
    radial-gradient(1.5px 1.5px at 15% 60%,rgba(255,255,255,.3),transparent);
  opacity:.55;animation:twinkle 6s ease-in-out infinite;
  pointer-events:none;
}
@keyframes twinkle{0%,100%{opacity:.4}50%{opacity:.8}}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr 1fr;gap:60px;align-items:center}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:99px;
  background:rgba(122,92,255,.14);border:1px solid rgba(122,92,255,.35);
  color:#c9b6ff;font-size:12px;font-weight:600;letter-spacing:.5px;
  margin-bottom:20px;
}
.hero-badge-dot{width:6px;height:6px;border-radius:50%;background:var(--brand-2);animation:pulse 1.8s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(1.4)}}
.hero h1{
  font-size:54px;line-height:1.15;font-weight:800;letter-spacing:-.5px;
  margin-bottom:20px;
}
.hero h1 .grad{
  background:linear-gradient(120deg,#7a5cff 0%,#f262b0 40%,#4dd0c8 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:17px;color:var(--text-dim);margin-bottom:32px;max-width:560px}
.hero-stats{display:flex;gap:32px;margin-bottom:36px;padding:20px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);flex-wrap:wrap}
.hero-stat-num{font-size:24px;font-weight:800;color:var(--text)}
.hero-stat-lbl{font-size:12px;color:var(--text-mute);margin-top:2px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 28px;border-radius:99px;font-size:15px;font-weight:700;
  cursor:pointer;border:none;transition:all .25s;
  font-family:inherit;
}
.btn-primary{
  background:linear-gradient(135deg,#7a5cff 0%,#f262b0 100%);
  color:#fff;box-shadow:0 8px 24px rgba(122,92,255,.4);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(122,92,255,.55);color:#fff}
.btn-outline{
  background:transparent;color:var(--text);border:1px solid rgba(255,255,255,.22);
}
.btn-outline:hover{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.42)}

/* Hero 截图卡 */
.hero-mock{position:relative;perspective:1400px}
.hero-shot{
  width:100%;max-width:480px;margin:0 auto;border-radius:16px;
  overflow:hidden;position:relative;
  background:#1c0e35;
  box-shadow:0 40px 90px rgba(0,0,0,.65),0 0 0 1px rgba(255,255,255,.06),inset 0 0 0 1px rgba(255,255,255,.04);
  animation:float 6s ease-in-out infinite;
}
@keyframes float{0%,100%{transform:translateY(0) rotate(-1deg)}50%{transform:translateY(-14px) rotate(-1deg)}}
.hero-shot-bar{
  height:26px;display:flex;align-items:center;gap:6px;padding:0 12px;
  background:linear-gradient(180deg,#2a1758,#1c0e35);border-bottom:1px solid var(--line);
}
.hero-shot-dot{width:9px;height:9px;border-radius:50%;background:#ff5f57}
.hero-shot-dot:nth-child(2){background:#ffbd2e}
.hero-shot-dot:nth-child(3){background:#28c840}
.hero-shot-title{margin-left:12px;font-size:11px;color:var(--text-mute);letter-spacing:.5px}
.hero-shot-img{width:100%;display:block;filter:saturate(1.05) contrast(1.02)}
.hero-shot-wave{
  position:absolute;bottom:18px;left:24px;right:24px;height:44px;
  display:flex;align-items:flex-end;justify-content:space-between;gap:4px;
  z-index:2;pointer-events:none;
}
.wave-bar{
  width:5px;background:linear-gradient(180deg,#f262b0,#7a5cff);border-radius:3px;
  animation:wave 1.2s ease-in-out infinite;
  box-shadow:0 0 12px rgba(242,98,176,.5);
}
@keyframes wave{0%,100%{height:20%}50%{height:90%}}
.hero-glow{
  position:absolute;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(122,92,255,.35),transparent 70%);
  filter:blur(60px);z-index:1;
}

/* ================= Section ================= */
.section{padding:80px 0}
.section-alt{background:linear-gradient(180deg,transparent 0%,rgba(34,18,63,.35) 50%,transparent 100%)}
.section-head{text-align:center;margin-bottom:56px}
.section-tag{
  display:inline-block;padding:5px 14px;border-radius:99px;
  background:rgba(122,92,255,.15);color:#c9b6ff;
  font-size:12px;font-weight:600;letter-spacing:1.5px;
  margin-bottom:14px;
}
.section-title{
  font-size:36px;font-weight:800;letter-spacing:-.5px;
  margin-bottom:14px;line-height:1.3;
}
.section-title .grad{
  background:linear-gradient(120deg,#7a5cff,#f262b0);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.section-sub{color:var(--text-dim);font-size:15px;max-width:680px;margin:0 auto}

/* Feature Grid */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.feature-card{
  background:linear-gradient(180deg,rgba(34,18,63,.6),rgba(24,13,43,.6));
  border:1px solid var(--line);border-radius:20px;padding:28px;
  transition:all .3s;position:relative;overflow:hidden;
}
.feature-card:hover{
  transform:translateY(-4px);
  border-color:rgba(122,92,255,.35);
  box-shadow:0 20px 40px rgba(122,92,255,.15);
}
.feature-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,transparent,#7a5cff,#f262b0,transparent);
  opacity:0;transition:opacity .3s;
}
.feature-card:hover::before{opacity:1}
.feature-icon{
  width:52px;height:52px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;font-size:24px;
  margin-bottom:18px;
  background:linear-gradient(135deg,rgba(122,92,255,.22),rgba(242,98,176,.22));
  border:1px solid rgba(255,255,255,.1);
}
.feature-title{font-size:18px;font-weight:700;margin-bottom:8px}
.feature-desc{color:var(--text-dim);font-size:14px;line-height:1.75}

/* Format chips */
.format-row{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:36px}
.format-chip{
  padding:8px 18px;border-radius:99px;
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  font-size:13px;color:var(--text-dim);font-weight:600;letter-spacing:.5px;
  transition:all .2s;
}
.format-chip:hover{background:rgba(122,92,255,.14);border-color:rgba(122,92,255,.4);color:#fff}
.format-chip.hi{background:linear-gradient(135deg,rgba(122,92,255,.2),rgba(242,98,176,.2));border-color:rgba(242,98,176,.35);color:#fff}

/* Timeline */
.timeline{position:relative;padding:20px 0}
.timeline::before{
  content:"";position:absolute;left:20px;top:0;bottom:0;width:2px;
  background:linear-gradient(180deg,#7a5cff 0%,#f262b0 50%,#4dd0c8 100%);
}
.tl-item{position:relative;padding-left:60px;margin-bottom:36px}
.tl-item::before{
  content:"";position:absolute;left:14px;top:8px;width:14px;height:14px;border-radius:50%;
  background:linear-gradient(135deg,#7a5cff,#f262b0);
  box-shadow:0 0 0 4px rgba(122,92,255,.2);
}
.tl-year{font-size:14px;color:var(--brand-2);font-weight:800;letter-spacing:1px;margin-bottom:4px}
.tl-title{font-size:17px;font-weight:700;margin-bottom:6px}
.tl-desc{color:var(--text-dim);font-size:14px;line-height:1.75;max-width:720px}

/* Testimonials */
.testimonial-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.testimonial-card{
  background:var(--panel);border-radius:16px;padding:24px;
  border:1px solid var(--line);
}
.testimonial-quote{font-size:14px;color:var(--text-dim);line-height:1.85;margin-bottom:18px;position:relative;padding-left:22px}
.testimonial-quote::before{
  content:"\201C";position:absolute;left:0;top:-14px;font-size:44px;
  color:var(--brand);font-family:Georgia,serif;line-height:1;
}
.testimonial-user{display:flex;align-items:center;gap:12px}
.testimonial-avatar{
  width:40px;height:40px;border-radius:50%;
  background:linear-gradient(135deg,#7a5cff,#f262b0);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px;color:#fff;
}
.testimonial-name{font-weight:600;font-size:14px}
.testimonial-tag{font-size:11px;color:var(--text-mute)}
.testimonial-stars{color:var(--accent);font-size:12px;margin-top:2px}

/* FAQ */
.faq-list{max-width:820px;margin:0 auto}
.faq-item{
  background:var(--panel);border-radius:12px;
  border:1px solid var(--line);margin-bottom:12px;overflow:hidden;
  transition:all .25s;
}
.faq-item.open{border-color:rgba(122,92,255,.4);background:rgba(34,18,63,.7)}
.faq-q{
  padding:20px 24px;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  font-weight:600;font-size:15px;
}
.faq-icon{
  width:24px;height:24px;border-radius:6px;background:rgba(122,92,255,.18);
  display:flex;align-items:center;justify-content:center;font-size:14px;color:var(--brand);
  transition:transform .3s;flex-shrink:0;margin-left:12px;
}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a-inner{padding:0 24px 20px;color:var(--text-dim);font-size:14px;line-height:1.85}
.faq-item.open .faq-a{max-height:520px}

/* Comparison Table */
.cmp-table{width:100%;border-collapse:separate;border-spacing:0;background:var(--panel);border-radius:16px;overflow:hidden;border:1px solid var(--line)}
.cmp-table th,.cmp-table td{padding:16px 18px;text-align:center;font-size:14px}
.cmp-table th{background:rgba(255,255,255,.03);font-weight:600;color:var(--text-dim);border-bottom:1px solid var(--line)}
.cmp-table td{border-bottom:1px solid var(--line);color:var(--text-dim)}
.cmp-table tr:last-child td{border-bottom:none}
.cmp-table td:first-child,.cmp-table th:first-child{text-align:left;color:var(--text);font-weight:600}
.cmp-table .cmp-hi{color:var(--text);font-weight:700;background:rgba(122,92,255,.09)}
.cmp-table .yes{color:var(--brand-3);font-weight:700}
.cmp-table .no{color:var(--text-mute);opacity:.5}

/* CTA */
.cta-box{
  padding:60px 40px;border-radius:24px;text-align:center;position:relative;overflow:hidden;
  background:linear-gradient(135deg,#2a1758 0%,#3d1a6b 50%,#5e1e80 100%);
  border:1px solid rgba(122,92,255,.35);
}
.cta-box::before{
  content:"";position:absolute;top:-50%;right:-20%;width:600px;height:600px;border-radius:50%;
  background:radial-gradient(circle,rgba(242,98,176,.4),transparent 60%);
  filter:blur(40px);
}
.cta-box::after{
  content:"";position:absolute;bottom:-60%;left:-20%;width:500px;height:500px;border-radius:50%;
  background:radial-gradient(circle,rgba(77,208,200,.28),transparent 60%);
  filter:blur(50px);
}
.cta-box-inner{position:relative;z-index:2}
.cta-box h2{font-size:32px;font-weight:800;margin-bottom:14px}
.cta-box p{color:var(--text-dim);margin-bottom:28px;font-size:15px}

/* Footer */
.footer{
  padding:60px 0 30px;background:linear-gradient(180deg,#080413,#04020a);
  border-top:1px solid var(--line);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr 1fr;gap:36px;margin-bottom:40px}
.footer-brand-desc{color:var(--text-dim);font-size:13px;line-height:1.75;margin-top:12px;max-width:300px}
.footer-col h4{font-size:14px;font-weight:700;margin-bottom:14px;color:var(--text)}
.footer-col ul li{margin-bottom:8px}
.footer-col a{color:var(--text-dim);font-size:13px;transition:color .2s}
.footer-col a:hover{color:var(--brand-2)}
.footer-bottom{
  padding-top:24px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;
  font-size:12px;color:var(--text-mute);
}
.footer-bottom-nav{display:flex;gap:20px}
.footer-bottom-nav a{color:var(--text-mute)}
.footer-bottom-nav a:hover{color:var(--brand-2)}
.footer-disclaimer{
  padding:14px 18px;background:rgba(122,92,255,.06);border:1px solid rgba(122,92,255,.24);
  border-radius:10px;font-size:12px;color:var(--text-dim);line-height:1.75;
  margin-bottom:24px;
}

/* ============ Download Modal ============ */
.modal-overlay{
  position:fixed;inset:0;z-index:1000;
  background:rgba(4,2,10,.85);backdrop-filter:blur(10px);
  display:none;align-items:center;justify-content:center;padding:20px;
}
.modal-overlay.show{display:flex;animation:fadeIn .3s}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.modal{
  width:100%;max-width:480px;background:linear-gradient(160deg,#22123f,#140826);
  border:1px solid rgba(122,92,255,.3);border-radius:22px;padding:32px;
  position:relative;box-shadow:0 40px 100px rgba(0,0,0,.7);
  animation:slideUp .35s cubic-bezier(.22,1,.36,1);
}
@keyframes slideUp{from{transform:translateY(30px);opacity:0}to{transform:translateY(0);opacity:1}}
.modal-close{
  position:absolute;top:14px;right:14px;
  width:32px;height:32px;border-radius:50%;
  background:rgba(255,255,255,.08);border:none;color:#fff;font-size:20px;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  transition:background .2s;
}
.modal-close:hover{background:rgba(255,255,255,.16)}
.modal-header{text-align:center;margin-bottom:22px}
.modal-icon{
  width:56px;height:56px;margin:0 auto 14px;border-radius:16px;
  background:linear-gradient(135deg,#7a5cff,#f262b0);
  display:flex;align-items:center;justify-content:center;font-size:26px;
  box-shadow:0 8px 20px rgba(122,92,255,.4);
}
.modal-title{font-size:22px;font-weight:800;margin-bottom:6px}
.modal-subtitle{font-size:13px;color:var(--text-mute)}
.qr-frame{
  width:220px;height:220px;margin:0 auto 18px;border-radius:18px;
  background:#fff;padding:12px;position:relative;
  animation:breathe 3s ease-in-out infinite;
}
@keyframes breathe{
  0%,100%{box-shadow:0 0 0 3px rgba(122,92,255,.4),0 0 24px rgba(122,92,255,.35);transform:scale(1)}
  50%{box-shadow:0 0 0 8px rgba(242,98,176,.55),0 0 44px rgba(242,98,176,.55);transform:scale(1.02)}
}
.qr-frame img{width:100%;height:100%;object-fit:contain;border-radius:8px}
.modal-tip{text-align:center;color:var(--text-dim);font-size:14px;margin-bottom:18px;line-height:1.75}
.modal-tip b{color:var(--brand-2)}
.modal-features{margin-bottom:18px}
.modal-feature{
  display:flex;align-items:center;gap:10px;
  padding:10px 14px;background:rgba(77,208,200,.07);border:1px solid rgba(77,208,200,.18);
  border-radius:10px;margin-bottom:8px;
  font-size:13px;color:var(--text-dim);
}
.modal-feature-icon{color:var(--brand-3);font-size:14px;flex-shrink:0}
.modal-warning{
  padding:12px 14px;background:rgba(255,209,102,.09);border:1px solid rgba(255,209,102,.28);
  border-radius:10px;font-size:12px;color:#ffe0a3;line-height:1.75;
}
.modal-warning-icon{margin-right:6px}
.modal-hint{
  text-align:center;margin-top:14px;font-size:12px;color:var(--text-mute);
}

/* ============ Download Page ============ */
.dl-hero{padding:130px 0 60px;background:linear-gradient(180deg,#0b0614 0%,#140826 100%);text-align:center}
.dl-hero h1{font-size:44px;font-weight:800;margin-bottom:14px}
.dl-hero p{color:var(--text-dim);max-width:600px;margin:0 auto 30px}
.dl-platforms{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;max-width:900px;margin:0 auto}
.dl-platform-btn{
  background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:24px 16px;
  text-align:center;transition:all .3s;
}
.dl-platform-btn:hover{border-color:rgba(122,92,255,.4)}
.dl-platform-btn.active{border-color:var(--brand);background:rgba(122,92,255,.1)}
.dl-platform-icon{width:44px;height:44px;margin:0 auto 12px;background:rgba(255,255,255,.06);border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:20px}
.dl-platform-name{font-weight:700;font-size:14px;margin-bottom:4px}
.dl-platform-meta{font-size:11px;color:var(--text-mute)}

.dl-box{
  background:var(--panel);border:1px solid var(--line);border-radius:22px;
  padding:36px;margin:20px auto;max-width:1000px;
}
.dl-box-inner{display:grid;grid-template-columns:1.4fr 1fr;gap:40px;align-items:center}
.dl-info h2{font-size:24px;font-weight:800;margin-bottom:8px}
.dl-info-meta{color:var(--text-mute);font-size:13px;margin-bottom:20px}
.dl-features{margin-bottom:20px}
.dl-feature{
  display:flex;gap:12px;padding:10px 0;color:var(--text-dim);font-size:14px;line-height:1.7;
}
.dl-feature-icon{color:var(--brand-3);flex-shrink:0;margin-top:2px}
.dl-buttons{display:flex;flex-direction:column;gap:12px}
.dl-btn{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 20px;border-radius:14px;cursor:pointer;
  font-weight:700;font-size:15px;transition:all .25s;border:none;font-family:inherit;
}
.dl-btn-quark{
  background:linear-gradient(135deg,#7a5cff,#4dd0c8);color:#fff;
  box-shadow:0 8px 20px rgba(122,92,255,.35);
}
.dl-btn-quark:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(122,92,255,.5)}
.dl-btn-baidu{
  background:linear-gradient(135deg,#f262b0,#7a5cff);color:#fff;
  box-shadow:0 8px 20px rgba(242,98,176,.35);
}
.dl-btn-baidu:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(242,98,176,.5)}
.dl-btn-brand{font-weight:800}
.dl-btn-note{font-size:12px;opacity:.85;font-weight:400}
.dl-qr-inline{
  display:flex;flex-direction:column;align-items:center;gap:12px;
  background:rgba(255,255,255,.02);padding:20px;border-radius:16px;
  border:1px dashed rgba(255,255,255,.14);
}
.dl-qr-inline .qr-frame{width:180px;height:180px}
.dl-qr-cap{font-size:12px;color:var(--text-mute);text-align:center}

/* Steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;position:relative}
.steps::before{
  content:"";position:absolute;top:36px;left:12%;right:12%;height:2px;
  background:linear-gradient(90deg,transparent,rgba(122,92,255,.5),rgba(242,98,176,.5),transparent);
  z-index:0;
}
.step-card{position:relative;z-index:1;text-align:center;padding:0 12px}
.step-num{
  width:72px;height:72px;margin:0 auto 20px;border-radius:50%;
  background:linear-gradient(135deg,#7a5cff,#f262b0);
  display:flex;align-items:center;justify-content:center;
  font-size:24px;font-weight:800;color:#fff;
  box-shadow:0 12px 28px rgba(122,92,255,.4);
  border:4px solid rgba(255,255,255,.06);
}
.step-title{font-weight:700;font-size:16px;margin-bottom:8px}
.step-desc{font-size:13px;color:var(--text-dim);line-height:1.65}

/* ============ About Page ============ */
.about-hero{padding:130px 0 60px;background:linear-gradient(180deg,#0b0614 0%,#140826 100%);text-align:center}
.about-hero h1{font-size:42px;font-weight:800;margin-bottom:14px}
.about-hero p{color:var(--text-dim);max-width:640px;margin:0 auto}
.about-info-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:40px}
.about-info-card{
  background:var(--panel);border:1px solid var(--line);border-radius:14px;
  padding:22px;text-align:center;
}
.about-info-num{font-size:28px;font-weight:800;color:var(--brand-2);margin-bottom:6px}
.about-info-lbl{font-size:13px;color:var(--text-dim)}
.about-block{
  background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:32px;margin-bottom:24px;
}
.about-block h3{font-size:22px;font-weight:800;margin-bottom:16px;display:flex;align-items:center;gap:10px}
.about-block p{color:var(--text-dim);font-size:14px;line-height:1.9;margin-bottom:12px}
.about-block h4{font-size:16px;font-weight:700;margin:18px 0 10px;color:var(--brand-2)}

/* Breadcrumb */
.breadcrumb{padding:96px 0 20px;color:var(--text-mute);font-size:13px}
.breadcrumb a{color:var(--text-mute)}
.breadcrumb a:hover{color:var(--brand-2)}
.breadcrumb .cur{color:var(--text-dim)}

/* Text utility */
.text-grad{background:linear-gradient(120deg,#7a5cff,#f262b0);-webkit-background-clip:text;background-clip:text;color:transparent}
.mono{font-family:"Courier New",monospace}
.text-center{text-align:center}

/* Screenshots gallery */
.screenshot-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.screenshot-card{
  background:var(--panel);border-radius:16px;padding:16px;border:1px solid var(--line);
  transition:all .3s;
}
.screenshot-card:hover{transform:translateY(-3px);border-color:rgba(122,92,255,.35);box-shadow:0 16px 32px rgba(0,0,0,.4)}
.screenshot-frame{
  border-radius:12px;overflow:hidden;position:relative;background:#0b0614;
  border:1px solid var(--line);
}
.screenshot-frame img{width:100%;display:block}
.screenshot-title{font-size:15px;font-weight:700;margin:14px 4px 6px}
.screenshot-desc{font-size:13px;color:var(--text-mute);margin:0 4px;line-height:1.6}

/* ============ Responsive ============ */
@media(max-width:960px){
  .nav{display:none}
  .hamburger{display:block}
  .hero{padding:110px 0 70px}
  .hero-inner{grid-template-columns:1fr;gap:40px}
  .hero h1{font-size:36px}
  .hero-mock{max-width:520px;margin:0 auto}
  .feature-grid,.testimonial-grid{grid-template-columns:repeat(2,1fr)}
  .dl-platforms,.about-info-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .steps::before{display:none}
  .dl-box-inner{grid-template-columns:1fr;gap:30px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:24px}
  .section-title{font-size:28px}
  .screenshot-grid{grid-template-columns:1fr}
}
@media(max-width:560px){
  .hero h1{font-size:28px}
  .hero-stats{gap:18px}
  .feature-grid,.testimonial-grid,.steps{grid-template-columns:1fr}
  .dl-platforms,.about-info-grid,.footer-grid{grid-template-columns:1fr}
  .container{padding:0 16px}
  .section{padding:60px 0}
  .modal{padding:24px}
  .qr-frame{width:190px;height:190px}
}