:root{
  --a:#1F6FE5;
  --a2:#0D4DB8;
  --b:#14B8A6;
  --soft:#F0F6FF;
  --ink:#0F1B33;
  --muted:#5A6B84;
  --line:rgba(15,27,51,.08);
  --max:1180px;
  --shadow:0 16px 40px rgba(15,55,120,.1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:#fff;color:var(--ink);font-family:"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.8}
a{text-decoration:none;color:inherit}
img{display:block;max-width:100%;height:auto}
button{font:inherit;cursor:pointer;border:0;background:none}
.wrap{width:min(calc(100% - 40px),var(--max));margin:auto}

header{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.head{min-height:74px;display:grid;grid-template-columns:auto 1fr auto;gap:24px;align-items:center}
.brand{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:800}
.brand img{width:40px;height:40px;border-radius:10px}
nav{display:flex;justify-content:center;gap:22px;flex-wrap:wrap}
nav a{font-size:14px;font-weight:700;color:var(--muted)}
nav a.active,nav a:hover{color:var(--a)}
.menu{display:none;color:var(--a);font-size:24px;padding:6px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 26px;border-radius:12px;background:linear-gradient(135deg,var(--a),var(--a2));color:#fff;font-weight:800;box-shadow:0 10px 24px rgba(31,111,229,.28);transition:transform .2s ease,box-shadow .2s ease}
.btn:hover{transform:translateY(-1px);box-shadow:0 14px 28px rgba(31,111,229,.34)}
.btn.secondary{background:#fff;color:var(--a);border:1px solid rgba(31,111,229,.25);box-shadow:none}
.btn.light{background:#fff;color:var(--a);box-shadow:none}

.hero{padding:78px 0 64px;background:radial-gradient(1200px 480px at 15% 0%,#DCEBFF 0%,transparent 55%),linear-gradient(180deg,#F7FBFF 0%,#FFFFFF 70%)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.hero .kicker{display:inline-flex;align-items:center;gap:8px;padding:6px 12px;border-radius:999px;background:rgba(31,111,229,.08);color:var(--a);font-size:12px;font-weight:800;letter-spacing:.04em;margin-bottom:16px}
.hero h1{margin:0;font-size:clamp(38px,5vw,58px);line-height:1.15;letter-spacing:-.03em}
.hero h1 em{font-style:normal;color:var(--a)}
.hero p{margin:18px 0 0;color:var(--muted);font-size:17px;max-width:540px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.hero-panel{position:relative;padding:28px;border-radius:28px;background:linear-gradient(160deg,#123B7A,#1F6FE5 55%,#14B8A6);color:#fff;min-height:360px;overflow:hidden;box-shadow:var(--shadow)}
.hero-panel::after{content:"";position:absolute;inset:auto -40px -60px auto;width:220px;height:220px;border-radius:50%;background:rgba(255,255,255,.12)}
.hero-panel h2{margin:0 0 8px;font-size:28px;position:relative;z-index:1}
.hero-panel p{margin:0;color:rgba(255,255,255,.86);position:relative;z-index:1}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:28px;position:relative;z-index:1}
.hero-stats div{padding:14px;border-radius:14px;background:rgba(255,255,255,.12)}
.hero-stats strong{display:block;font-size:24px;line-height:1.2}
.hero-stats span{font-size:12px;color:rgba(255,255,255,.78)}

.stats{padding:18px 0 10px}
.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.stat-card{padding:22px;border-radius:18px;background:var(--soft);border:1px solid var(--line)}
.stat-card strong{display:block;font-size:32px;color:var(--a);line-height:1.1}
.stat-card span{color:var(--muted);font-size:14px}

.section{padding:78px 0}
.section.alt{background:linear-gradient(180deg,#F8FBFF,#FFFFFF)}
.section h2{margin:0 0 12px;font-size:clamp(28px,3.6vw,42px);line-height:1.2;letter-spacing:-.02em}
.lead{max-width:760px;color:var(--muted);font-size:16px;margin:0}

.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:34px}
.feature-card{padding:24px;border-radius:20px;background:#fff;border:1px solid var(--line);box-shadow:0 8px 24px rgba(15,55,120,.04);transition:transform .2s ease,box-shadow .2s ease}
.feature-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.icon{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;background:rgba(31,111,229,.1);margin-bottom:14px}
.icon svg{width:26px;height:26px;fill:none;stroke:var(--a);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.feature-card h3{margin:0 0 8px;font-size:20px}
.feature-card p{margin:0;color:var(--muted);font-size:14px}

.media-band{padding:70px 0;background:linear-gradient(135deg,#0F2E63,#1F6FE5 60%,#0F766E);color:#fff}
.media-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.media-band h2{margin:0 0 12px;font-size:clamp(28px,3.5vw,40px);color:#fff}
.media-band p{margin:0;color:rgba(255,255,255,.88)}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0}
.chip{padding:8px 14px;border-radius:999px;background:rgba(255,255,255,.14);font-size:13px;font-weight:700}
.check-list{margin:18px 0 0;padding:0;list-style:none}
.check-list li{position:relative;padding:8px 0 8px 28px;color:rgba(255,255,255,.9)}
.check-list li::before{content:"";position:absolute;left:0;top:14px;width:14px;height:14px;border-radius:50%;background:var(--b);box-shadow:inset 0 0 0 3px rgba(255,255,255,.35)}

.platforms{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:28px}
.platform{padding:18px;border-radius:16px;background:rgba(255,255,255,.1);text-align:center}
.platform strong{display:block;margin-top:8px}
.platform span{display:block;font-size:12px;color:rgba(255,255,255,.75)}
.platform .icon{margin:0 auto 4px;background:rgba(255,255,255,.14)}
.platform .icon svg{stroke:#fff}

.why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:34px}
.why-item{padding:22px;border-radius:18px;background:var(--soft)}
.why-item h3{margin:10px 0 6px;font-size:18px}
.why-item p{margin:0;color:var(--muted);font-size:14px}

.reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:34px}
.review{padding:22px;border-radius:18px;background:#fff;border:1px solid var(--line)}
.review p{margin:0 0 16px;color:var(--muted);font-size:14px}
.review b{display:block}
.review span{color:var(--muted);font-size:12px}

.faq{margin-top:28px}
.faq details{padding:16px 18px;margin-bottom:10px;border-radius:14px;background:#fff;border:1px solid var(--line)}
.faq summary{cursor:pointer;font-weight:800;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq details[open] summary{color:var(--a);margin-bottom:8px}
.faq p{margin:0;color:var(--muted);font-size:14px}

.article-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:34px}
.article-card{display:block;padding:22px;border-radius:20px;background:#fff;border:1px solid var(--line);box-shadow:0 8px 24px rgba(15,55,120,.04);transition:transform .2s ease}
.article-card:hover{transform:translateY(-3px)}
.article-card .thumb{height:140px;border-radius:14px;margin-bottom:14px;display:grid;place-items:center;background:linear-gradient(135deg,#E8F1FF,#D7F6F1)}
.article-card .thumb svg{width:48px;height:48px;stroke:var(--a);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.article-card h3{margin:0 0 8px;font-size:18px}
.article-card p{margin:0 0 12px;color:var(--muted);font-size:14px}
.article-card b{color:var(--a);font-size:13px}

.cta{padding:70px 0;background:linear-gradient(135deg,var(--a),#0F4FA8 50%,#0F766E);color:#fff;text-align:center}
.cta h2{margin:0 0 10px;font-size:clamp(28px,3.5vw,40px);color:#fff}
.cta p{margin:0 auto 24px;max-width:620px;color:rgba(255,255,255,.88)}

.inner-hero{padding:60px 0;background:radial-gradient(900px 360px at 10% 0%,#DCEBFF 0%,transparent 55%),#F7FBFF}
.inner-hero h1{margin:0 0 12px;font-size:clamp(32px,4.2vw,48px);line-height:1.18}
.inner-hero p{margin:0;color:var(--muted);max-width:720px;font-size:17px}
.kicker{display:inline-block;color:var(--a);font-size:12px;font-weight:800;letter-spacing:.08em;margin-bottom:12px}

.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 250px;gap:40px;align-items:start}
.article h2{margin:34px 0 10px;font-size:26px}
.article h3{margin:24px 0 8px;font-size:20px}
.article p,.article li{color:var(--muted);font-size:16px;line-height:1.95}
.article ol,.article ul{padding-left:22px}
.note{padding:16px 18px;margin:18px 0;border-radius:14px;background:var(--soft);color:var(--muted);font-size:14px}
.side{position:sticky;top:96px;padding:20px;border-radius:18px;background:#fff;border:1px solid var(--line);box-shadow:0 8px 24px rgba(15,55,120,.05)}
.side h3{margin:0 0 10px;font-size:17px}
.side a{display:block;padding:8px 0;color:var(--muted);font-size:14px}
.side a:hover{color:var(--a)}

.download-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:28px}
.download-item{display:flex;gap:14px;align-items:center;padding:18px;border-radius:16px;background:#fff;border:1px solid var(--line)}
.download-item .icon{margin:0}
.download-item strong{display:block}
.download-item span{color:var(--muted);font-size:13px}

.sitemap-list{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:28px}
.sitemap-block{padding:22px;border-radius:18px;background:#fff;border:1px solid var(--line)}
.sitemap-block h2{margin:0 0 12px;font-size:20px}
.sitemap-block ul{margin:0;padding-left:18px;color:var(--muted)}
.sitemap-block li{margin:8px 0}
.sitemap-block a:hover{color:var(--a)}

.daily-stamp{margin-top:14px;color:var(--a);font-size:13px;font-weight:700}

footer{padding-top:48px;background:#0B1730;color:#D5DEEE}
.foot{display:grid;grid-template-columns:2fr 1fr 1fr;gap:36px;padding-bottom:32px}
.foot .brand span{color:#fff}
.foot p,.foot a{color:#93A1B8;font-size:13px}
.foot a{display:block;padding:5px 0}
.foot b{display:block;color:#fff;margin-bottom:8px}
.copyright{display:flex;justify-content:center;gap:18px;flex-wrap:wrap;padding:16px;color:#7C8AA3;border-top:1px solid rgba(255,255,255,.06);font-size:13px}

@media (max-width:980px){
  nav{display:none;position:fixed;top:74px;left:0;right:0;padding:18px;flex-direction:column;background:#fff;border-bottom:1px solid var(--line)}
  nav.open{display:flex}
  .menu{display:block}
  .hero-grid,.media-grid,.article-layout{grid-template-columns:1fr}
  .feature-grid,.why-grid,.reviews,.article-cards,.platforms,.sitemap-list,.download-list,.stat-grid{grid-template-columns:1fr 1fr}
  .foot{grid-template-columns:1fr}
}
@media (max-width:680px){
  .wrap{width:min(calc(100% - 28px),var(--max))}
  .head>.btn{display:none}
  .hero{padding:52px 0 40px}
  .section{padding:56px 0}
  .feature-grid,.why-grid,.reviews,.article-cards,.platforms,.sitemap-list,.download-list,.stat-grid,.hero-stats{grid-template-columns:1fr}
}