:root{
  --ink:#092635;
  --ink-2:#0f3d52;
  --muted:#55768a;
  --soft:#f4f8fb;
  --line:#e7edf3;
  --orange:#f9732b;
  --orange-dark:#e96017;
  --blue:#0e6077;
  --deep:#092635;
  --card:#ffffff;
  --radius:28px;
  --shadow:0 20px 50px rgba(9,38,53,.08);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;
  background:linear-gradient(90deg,#f3f7fb 0,#fff 14%,#fff 86%,#f3f7fb 100%);
  line-height:1.65;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
.wrapper{width:min(1210px,calc(100% - 48px));margin:0 auto}
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.93);
  backdrop-filter:saturate(170%) blur(14px);
  border-bottom:1px solid var(--line);
}
.navbar{height:82px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.logo{font-weight:900;font-size:30px;letter-spacing:-.8px;white-space:nowrap;color:var(--ink)}
.logo span{color:var(--orange)}
.logo-dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--orange);vertical-align:middle;margin:0 2px 2px}
.nav-links{display:flex;align-items:center;gap:34px;font-size:16px;font-weight:800;color:#123a4c}
.nav-links a{position:relative;padding:8px 0}
.nav-links a:not(.nav-cta)::after{content:"";position:absolute;left:0;bottom:2px;width:0;height:3px;background:var(--orange);border-radius:9px;transition:.22s}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}
.nav-cta{background:var(--orange);color:#fff;padding:12px 22px!important;border-radius:22px;box-shadow:0 10px 20px rgba(249,115,43,.24)}
.menu-btn{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:14px;background:#fff;align-items:center;justify-content:center;gap:4px;flex-direction:column;cursor:pointer}
.menu-btn span{width:20px;height:2px;background:var(--ink);border-radius:5px}
.hero{position:relative;overflow:hidden;padding:72px 0 58px;text-align:center;background:radial-gradient(circle at 50% 14%,rgba(249,115,43,.08),rgba(255,255,255,0) 38%)}
.badge{display:inline-flex;align-items:center;gap:8px;padding:8px 19px;background:#eef6ff;color:#08628b;border-radius:999px;font-size:15px;font-weight:800;margin-bottom:22px}
.badge img{width:18px;height:18px}
h1{font-size:clamp(40px,5vw,68px);line-height:1.12;letter-spacing:-2.2px;margin:0 0 18px;color:#0d5369;font-weight:950}
.hero-sub{font-size:20px;color:#43687d;margin:0 auto 28px;max-width:900px;font-weight:500}
.hero-sub strong{color:#0d5369;font-weight:900}
.actions{display:flex;align-items:center;justify-content:center;gap:18px;flex-wrap:wrap;margin:28px 0 42px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border-radius:999px;padding:14px 28px;font-weight:900;font-size:17px;border:1px solid transparent;transition:.18s;white-space:nowrap}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 14px 26px rgba(249,115,43,.28)}
.btn-primary:hover{background:var(--orange-dark);transform:translateY(-1px)}
.btn-ghost{border-color:#bed4e2;background:#fff;color:#173d50}
.btn-ghost:hover{border-color:var(--orange);color:var(--orange)}
.hero-visual{width:min(810px,92%);margin:0 auto}
.hero-note{font-size:14px;color:#5b7c8f;margin-top:-8px}
.section{padding:64px 0}
.section-tight{padding:44px 0}
.section-title{text-align:center;margin-bottom:38px}
.section-title h2{font-size:clamp(30px,3.2vw,44px);line-height:1.2;margin:0 0 10px;font-weight:950;letter-spacing:-1px;color:#071d2b}
.section-title p{margin:0;color:#678398;font-size:18px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:32px}
.feature-card{background:var(--card);border:1px solid var(--line);border-radius:28px;padding:32px 28px;min-height:255px;box-shadow:0 18px 40px rgba(9,38,53,.04);transition:.2s}
.feature-card:hover,.feature-card.featured{border-color:#ffd0b4;box-shadow:var(--shadow);transform:translateY(-2px)}
.feature-card img{width:52px;height:52px;margin-bottom:25px}
.feature-card h3{font-size:23px;line-height:1.25;margin:0 0 14px;color:#071d2b;font-weight:950}
.feature-card p{margin:0;color:#55768a;font-size:16px}
.stats{background:#0b3342;border-radius:44px;color:#fff;display:grid;grid-template-columns:repeat(4,1fr);gap:0;overflow:hidden;padding:40px 28px;box-shadow:0 28px 70px rgba(9,38,53,.12)}
.stat{text-align:center;padding:6px 20px}
.stat strong{display:block;font-size:clamp(34px,4vw,48px);line-height:1;color:#ffb84d;font-weight:950;margin-bottom:10px}
.stat b{display:block;font-size:17px;margin-bottom:2px}
.stat span{display:block;color:#d4e8ef;font-size:14px}
.platforms{text-align:center}
.platform-buttons{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;max-width:990px;margin:28px auto 0}
.platform-pill{display:flex;align-items:center;justify-content:space-between;gap:14px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:14px 22px;box-shadow:0 14px 32px rgba(9,38,53,.06);font-weight:900;font-size:18px}
.platform-pill img{width:34px;height:34px}
.platform-pill .label{display:flex;align-items:center;gap:12px}
.platform-pill em{font-style:normal;font-size:14px;background:var(--orange);color:#fff;border-radius:999px;padding:7px 13px;white-space:nowrap}
.platform-buttons .wide{grid-column:span 1}
.center-row{display:flex;justify-content:center;margin-top:28px}
.subscribe-card{background:linear-gradient(135deg,#fff,#fff9f1);border:1px solid #f0e7ff;border-radius:32px;padding:34px;display:grid;grid-template-columns:1.2fr .28fr;gap:28px;align-items:center}
.subscribe-card h2{display:flex;gap:12px;align-items:center;font-size:32px;line-height:1.2;margin:0 0 8px;font-weight:950}
.subscribe-card h2 img{width:38px;height:38px}
.subscribe-card p{margin:0 0 18px;color:#24495b;font-size:17px}
.code-line{background:#fff;border:1px solid #e9eef5;border-radius:20px;padding:18px;color:#435b69;font-size:15px}
.code-line strong{color:#0b3342}.code-line span{display:block;margin-top:5px;color:#111827;font-weight:800}
.faq-box{background:#fff;border:1px solid var(--line);border-radius:32px;padding:36px;box-shadow:0 15px 40px rgba(9,38,53,.04)}
.faq-item{border-bottom:1px solid #edf2f5}
.faq-item:last-child{border-bottom:none}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;border:0;background:transparent;padding:22px 0;text-align:left;color:#0b3342;cursor:pointer;font-size:18px;font-weight:900;font-family:inherit}
.faq-q .diamond{width:12px;height:12px;background:var(--orange);display:inline-block;transform:rotate(45deg);border:2px solid #0b3342;margin-right:12px;flex:0 0 12px}
.faq-q span:first-child{display:flex;align-items:center}
.faq-q .plus{font-size:24px;color:var(--orange);transition:.2s}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease;color:#55768a;font-size:16px}
.faq-a p{margin:0 0 20px;padding-left:28px}
.faq-item.open .faq-a{max-height:220px}
.faq-item.open .plus{transform:rotate(45deg)}
.cta-box{text-align:center;background:linear-gradient(135deg,#fbf5ff,#ece8ff);border-radius:42px;padding:52px 24px;margin-bottom:42px}
.cta-box h2{font-size:34px;line-height:1.2;margin:0 0 10px;font-weight:950}.cta-box p{margin:0 0 22px;color:#253f50}
.site-footer{background:#082330;color:#cbe4ed;padding:42px 0 32px;text-align:center}.footer-nav{display:flex;justify-content:center;gap:32px;flex-wrap:wrap;margin-bottom:22px}.footer-nav a{font-weight:800}.footer-nav a:hover{color:#fff}.copyright{font-size:15px}.copyright small{display:block;margin-top:8px;color:#9cb9c5}
/* download page */
.page-hero{padding:58px 0;text-align:center;background:radial-gradient(circle at 50% 10%,rgba(249,115,43,.08),transparent 45%)}
.page-hero h1{font-size:clamp(38px,4.2vw,58px);color:#0b3342}.page-hero p{max-width:820px;margin:0 auto;color:#55768a;font-size:19px}
.download-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}.download-card{background:#fff;border:1px solid var(--line);border-radius:30px;padding:28px;box-shadow:0 18px 44px rgba(9,38,53,.05)}.download-card header{display:flex;gap:16px;align-items:center;margin-bottom:16px}.download-card img{width:50px;height:50px}.download-card h2{margin:0;font-size:25px;line-height:1.2}.download-card p{color:#55768a;margin:0 0 18px}.download-card ul{margin:0 0 20px;padding-left:22px;color:#24495b}.download-card li{margin:6px 0}.safe-link{display:inline-flex;align-items:center;justify-content:center;background:var(--orange);color:#fff;border-radius:999px;padding:10px 18px;font-weight:900}.info-panel{background:#fff;border:1px solid var(--line);border-radius:30px;padding:30px;margin-top:28px}.info-panel h2{font-size:30px;margin:0 0 14px}.compare-table{width:100%;border-collapse:collapse;min-width:760px}.table-wrap{overflow:auto}.compare-table th,.compare-table td{border-bottom:1px solid var(--line);padding:15px;text-align:left}.compare-table th{background:#f7fbfd;color:#0b3342}.compare-table td{color:#415f70}.breadcrumb{font-size:14px;color:#6c8595;margin-bottom:10px}.breadcrumb a{color:#0d5369;font-weight:800}
@media (max-width:980px){
  .wrapper{width:min(100% - 32px,760px)}
  .navbar{height:auto;min-height:72px;position:relative}.menu-btn{display:flex}.nav-links{display:none;position:absolute;top:72px;left:0;right:0;background:#fff;border:1px solid var(--line);border-radius:22px;padding:16px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch;gap:4px}.nav-links.open{display:flex}.nav-links a{padding:12px 14px}.nav-cta{text-align:center;margin-top:6px}
  .hero{padding:48px 0}.hero-sub{font-size:18px}.grid-4{grid-template-columns:repeat(2,1fr);gap:18px}.stats{grid-template-columns:repeat(2,1fr);border-radius:32px;row-gap:28px}.platform-buttons{grid-template-columns:1fr 1fr}.subscribe-card{grid-template-columns:1fr}.download-grid{grid-template-columns:1fr}
}
@media (max-width:620px){
  body{background:#f7fafc}.wrapper{width:calc(100% - 24px)}.logo{font-size:24px}h1{letter-spacing:-1.1px}.hero{padding:34px 0 38px}.badge{font-size:13px}.actions{gap:12px}.btn{width:100%;padding:13px 18px}.hero-visual{width:100%}.section{padding:42px 0}.section-tight{padding:32px 0}.section-title{margin-bottom:24px}.section-title p{font-size:16px}.grid-4{grid-template-columns:1fr}.feature-card{min-height:auto;padding:26px}.stats{grid-template-columns:1fr;border-radius:28px;padding:30px 18px}.stat{border-bottom:1px solid rgba(255,255,255,.12);padding:16px 8px}.stat:last-child{border-bottom:0}.platform-buttons{grid-template-columns:1fr;gap:14px}.platform-pill{border-radius:22px;align-items:flex-start;flex-direction:column}.platform-pill em{width:100%;text-align:center}.subscribe-card,.faq-box,.download-card,.info-panel{border-radius:24px;padding:24px 18px}.subscribe-card h2{font-size:25px}.faq-q{font-size:16px}.faq-a p{padding-left:0}.cta-box{border-radius:28px;padding:36px 16px}.footer-nav{gap:18px}.page-hero{padding:38px 0}.download-card header{align-items:flex-start}.download-card h2{font-size:22px}
}