:root{
  --bg:#fffaf0;
  --surface:#ffffff;
  --surface-soft:#fff4c8;
  --text:#31312f;
  --muted:#756f63;
  --primary:#f3b21a;
  --primary-2:#ffd56c;
  --accent:#7fc78f;
  --accent-2:#95d8ff;
  --line:#eadfca;
  --shadow:0 18px 50px rgba(95,75,28,.12);
  --radius:24px;
  --max:1160px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"PingFang SC","Microsoft YaHei",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:linear-gradient(180deg,#fffdf7 0,#fff9ea 58%,#fff 100%);color:var(--text);line-height:1.75}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,a{ -webkit-tap-highlight-color:transparent }
.container{width:min(calc(100% - 32px),var(--max));margin:auto}
.header{position:sticky;top:0;z-index:30;background:rgba(255,253,247,.88);backdrop-filter:blur(14px);border-bottom:1px solid rgba(234,223,202,.7)}
.nav{height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:19px}
.brand img{width:42px;height:42px;border-radius:12px;box-shadow:0 8px 22px rgba(243,178,26,.2)}
.navlinks{display:flex;align-items:center;gap:22px;font-size:14px;color:#5f5b53}
.navlinks a:hover{color:#bd7b00}
.nav-cta{padding:10px 16px;border-radius:999px;background:#24262b;color:#fff;font-weight:700}
.hero{padding:64px 0 28px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;align-items:center;gap:52px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;background:#fff0b5;border:1px solid #f6d471;color:#875d06;border-radius:999px;padding:7px 12px;font-size:13px;font-weight:700}
.hero h1{font-size:clamp(38px,5.2vw,68px);line-height:1.08;margin:20px 0 18px;letter-spacing:-.04em}
.hero h1 span{display:block;color:#c88900}
.lead{font-size:18px;color:#5f5a50;max-width:720px;margin:0}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:48px;padding:0 20px;border-radius:14px;font-weight:800;border:1px solid transparent;transition:.2s ease}
.btn:hover{transform:translateY(-2px)}
.btn.primary{background:#24262b;color:#fff;box-shadow:0 10px 26px rgba(36,38,43,.18)}
.btn.secondary{background:#fff;border-color:var(--line);color:#5e5545}
.hero-meta{display:flex;gap:20px;flex-wrap:wrap;margin-top:22px;color:#776f61;font-size:13px}
.hero-visual{position:relative;min-height:520px}
.glow{position:absolute;inset:6% 0 10%;background:radial-gradient(circle at 50% 42%,#ffe18c 0,#fff1b0 36%,rgba(255,241,176,0) 68%)}
.logo-card{position:absolute;right:9%;top:0;width:138px;background:#fff;padding:10px;border-radius:28px;box-shadow:var(--shadow);transform:rotate(5deg)}
.logo-card img{border-radius:20px}
.phone{position:absolute;width:228px;border-radius:31px;background:#1c202a;padding:8px;box-shadow:0 28px 60px rgba(55,46,21,.22);overflow:hidden}
.phone img{border-radius:24px}
.phone.p1{left:4%;bottom:2%;transform:rotate(-6deg)}
.phone.p2{right:4%;bottom:8%;transform:rotate(6deg)}
.badge-float{position:absolute;left:36%;top:24%;background:#fff;border:1px solid var(--line);border-radius:18px;padding:12px 15px;box-shadow:var(--shadow);font-size:13px;font-weight:700}
.quick{padding:20px 0 14px}
.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.quick-card{background:rgba(255,255,255,.86);border:1px solid var(--line);border-radius:20px;padding:20px;box-shadow:0 9px 28px rgba(106,87,39,.06)}
.quick-card b{display:block;margin-bottom:3px}.quick-card span{font-size:13px;color:var(--muted)}
.section{padding:74px 0}
.section.soft{background:rgba(255,244,200,.35);border-top:1px solid rgba(234,223,202,.65);border-bottom:1px solid rgba(234,223,202,.65)}
.section-head{max-width:760px;margin-bottom:32px}
.kicker{font-size:13px;color:#9c6d08;font-weight:900;letter-spacing:.08em;text-transform:uppercase}
h2{font-size:clamp(28px,3.8vw,44px);line-height:1.18;margin:8px 0 12px;letter-spacing:-.025em}
.section-head p{margin:0;color:var(--muted)}
.download-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:22px}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:0 10px 30px rgba(106,87,39,.05)}
.platforms{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:20px}
.platform{display:block;border:1px solid var(--line);border-radius:18px;padding:18px;background:#fff;transition:.2s ease}
.platform:hover{border-color:#e0ae37;transform:translateY(-2px)}
.platform strong{display:block}.platform small{display:block;color:var(--muted);margin-top:2px}
.note{margin-top:18px;padding:14px 16px;border-radius:16px;background:#fff8dc;color:#715c28;font-size:13px;border:1px solid #f0df9c}
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.feature{background:#fff;border:1px solid var(--line);border-radius:22px;padding:24px;min-height:190px}
.icon{width:44px;height:44px;border-radius:13px;display:grid;place-items:center;background:#fff0b5;font-size:22px;margin-bottom:18px}.feature h3{margin:0 0 8px;font-size:18px}.feature p{margin:0;color:var(--muted);font-size:14px}
.screens{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.shot{background:#242833;border-radius:26px;padding:7px;box-shadow:0 22px 40px rgba(44,42,36,.15)}
.shot img{border-radius:21px;width:100%;height:auto}
.content-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.prose{background:#fff;border:1px solid var(--line);border-radius:22px;padding:28px}
.prose h3{font-size:20px;margin:0 0 10px}.prose p{color:#665f54;margin:0 0 12px}.prose p:last-child{margin-bottom:0}
.steps{counter-reset:step;display:grid;gap:14px}
.step{counter-increment:step;display:grid;grid-template-columns:46px 1fr;gap:14px;align-items:start;background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px}
.step:before{content:counter(step);width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:#24262b;color:#fff;font-weight:900}.step h3{margin:2px 0 4px;font-size:17px}.step p{margin:0;color:var(--muted);font-size:14px}
.brand-tabs{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin:18px 0 22px}.brand-tab{border:1px solid var(--line);background:#fff;border-radius:12px;padding:10px 8px;font-weight:800;color:#665c4a}.brand-tab.active{background:#24262b;color:#fff;border-color:#24262b}
.brand-guide{display:none}.brand-guide.active{display:block}
.security{border-left:4px solid #efb22b;background:#fffaf0;padding:18px 20px;border-radius:14px;margin-top:18px}
.security strong{display:block;margin-bottom:4px}.security p{margin:0;color:#6d6251;font-size:14px}
.faq{display:grid;gap:12px}.faq details{background:#fff;border:1px solid var(--line);border-radius:17px;padding:0 20px}.faq summary{cursor:pointer;list-style:none;font-weight:800;padding:18px 0;display:flex;justify-content:space-between;gap:20px}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:'＋';color:#a86e00}.faq details[open] summary:after{content:'－'}.faq .answer{padding:0 0 18px;color:var(--muted);font-size:14px}
.footer{padding:38px 0 48px;border-top:1px solid var(--line);background:#fff}.footer-grid{display:flex;justify-content:space-between;gap:28px;align-items:flex-start}.footer p{margin:7px 0 0;color:var(--muted);font-size:13px}.footer-links{display:flex;gap:16px;flex-wrap:wrap;font-size:13px;color:#665f54}
.backtop{position:fixed;right:18px;bottom:18px;width:46px;height:46px;border:0;border-radius:50%;background:#24262b;color:#fff;box-shadow:0 12px 28px rgba(0,0,0,.18);cursor:pointer;display:none}
@media (max-width:920px){.navlinks{display:none}.hero{padding-top:36px}.hero-grid,.download-grid,.content-grid{grid-template-columns:1fr}.hero-visual{min-height:510px}.quick-grid,.feature-grid{grid-template-columns:repeat(2,1fr)}.screens{grid-template-columns:repeat(2,1fr)}.platforms{grid-template-columns:1fr}.brand-tabs{grid-template-columns:repeat(3,1fr)}}
@media (max-width:560px){.container{width:min(calc(100% - 24px),var(--max))}.nav{height:64px}.brand span{font-size:17px}.hero h1{font-size:42px}.lead{font-size:16px}.hero-actions .btn{width:100%}.hero-visual{min-height:420px;margin-top:10px}.phone{width:168px;border-radius:24px}.phone img{border-radius:18px}.phone.p1{left:2%;bottom:4%}.phone.p2{right:2%;bottom:10%}.logo-card{width:105px;right:34%;top:2%}.badge-float{left:30%;top:30%;font-size:11px;padding:9px 11px}.quick-grid,.feature-grid{grid-template-columns:1fr}.quick-card{padding:17px}.section{padding:56px 0}.panel,.prose{padding:22px}.screens{grid-template-columns:repeat(2,1fr);gap:10px}.shot{border-radius:19px;padding:5px}.shot img{border-radius:15px}.brand-tabs{grid-template-columns:repeat(2,1fr)}.footer-grid{flex-direction:column}}