:root{
  --im-blue:#0b3d91;
  --im-blue-dark:#082a66;
  --im-orange:#ff6a13;
  --im-green:#16885b;
  --im-red:#d9443f;
  --im-bg:#f6f8fb;
  --im-text:#1c2530;
  --im-muted:#5b6472;
  --im-border:#e2e6ed;
  --im-white:#ffffff;
  --im-radius:10px;
  --im-maxw:1160px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:78px}
body{margin:0;background:var(--im-bg);color:var(--im-text);font-family:"Microsoft YaHei","PingFang SC","Noto Sans CJK SC",Arial,sans-serif;line-height:1.7}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit}
.container{width:min(calc(100% - 32px),var(--im-maxw));margin-inline:auto}
.skip-link{position:fixed;z-index:1000;left:16px;top:-60px;padding:10px 14px;background:var(--im-white);color:var(--im-blue);border-radius:6px}
.skip-link:focus{top:10px}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.97);border-bottom:1px solid var(--im-border)}
.header-inner{min-height:70px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.brand{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;color:var(--im-blue-dark);white-space:nowrap}
.brand img{width:42px;height:42px}
.site-nav{display:flex;align-items:center;gap:2px}
.site-nav a{padding:10px 9px;border-radius:6px;font-size:14px;color:#334050}
.site-nav a:hover,.site-nav a:focus-visible,.site-nav a.active{color:var(--im-blue);background:#eef4ff}
.menu-btn{display:none;border:1px solid var(--im-border);background:var(--im-white);color:var(--im-blue-dark);border-radius:7px;padding:8px 13px;cursor:pointer}
.hero{overflow:hidden;background:linear-gradient(130deg,var(--im-blue-dark),var(--im-blue) 64%,#1758b3);color:var(--im-white)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(360px,.95fr);align-items:center;gap:46px;padding:56px 0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;margin:0 0 14px;padding:6px 10px;border:1px solid rgba(255,255,255,.24);border-radius:6px;background:rgba(255,255,255,.08);color:#d8e7ff;font-size:14px}
.eyebrow::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--im-orange)}
h1{max-width:680px;margin:0 0 16px;font-size:42px;line-height:1.22;letter-spacing:-.03em}
.hero-copy{max-width:650px;margin:0 0 24px;color:#d7e5fa;font-size:17px}
.hero-actions{display:flex;flex-wrap:wrap;gap:11px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:10px 17px;border:1px solid transparent;border-radius:7px;font-weight:700;cursor:pointer;transition:transform .15s ease,background .15s ease}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--im-orange);color:var(--im-white)}
.btn-secondary{background:var(--im-white);color:var(--im-blue-dark)}
.btn-ghost{border-color:rgba(255,255,255,.4);color:var(--im-white)}
.btn-outline{border-color:#b9c8df;background:var(--im-white);color:var(--im-blue)}
.hero-visual{position:relative}
.hero-visual::before{content:"";position:absolute;inset:10% 2% 8% 20%;background:rgba(255,255,255,.08);filter:blur(1px);border-radius:40px;transform:rotate(-4deg)}
.hero-visual img{position:relative;width:560px;height:420px;object-fit:contain}
.sport-strip{background:var(--im-white);border-bottom:1px solid var(--im-border)}
.sport-strip-inner{display:grid;grid-template-columns:repeat(6,1fr)}
.sport-strip span{padding:14px 8px;text-align:center;color:#3b4858;font-size:14px;border-right:1px solid var(--im-border)}
.sport-strip span:last-child{border-right:0}
.section{padding:66px 0}
.section.alt{background:var(--im-white)}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:24px}
.section-kicker{margin:0 0 5px;color:var(--im-orange);font-size:13px;font-weight:800;letter-spacing:.08em}
.section h2{margin:0;color:var(--im-blue-dark);font-size:30px;line-height:1.28}
.section-lead{max-width:760px;margin:9px 0 0;color:var(--im-muted)}
.source-note{max-width:260px;color:var(--im-muted);font-size:13px;text-align:right}
.filter-bar,.platform-switch{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 20px}
.filter-btn,.platform-btn{border:1px solid var(--im-border);background:var(--im-white);color:#3a4654;border-radius:6px;padding:8px 13px;cursor:pointer}
.filter-btn.active,.platform-btn.active{background:var(--im-blue);border-color:var(--im-blue);color:var(--im-white)}
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.news-card,.topic-card,.download-card,.feature-card{min-width:0;background:var(--im-white);border:1px solid var(--im-border);border-radius:var(--im-radius);overflow:hidden}
.news-card{display:flex;flex-direction:column;padding:20px}
.news-card[hidden],.download-card[hidden]{display:none!important}
.card-top{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:13px}
.tag{display:inline-flex;align-items:center;min-height:25px;padding:3px 8px;border-radius:4px;background:#edf3ff;color:var(--im-blue);font-size:12px;font-weight:800}
.tag.confirmed{background:#e9f7f1;color:var(--im-green)}
.tag.watch{background:#fff3e8;color:#a84c11}
.tag.verified{background:#edf3ff;color:var(--im-blue)}
.sport{color:var(--im-muted);font-size:12px}
.news-card h3{margin:0 0 9px;font-size:18px;line-height:1.45;color:#16253a}
.meta{display:flex;flex-wrap:wrap;gap:4px 12px;margin:0 0 11px;color:var(--im-muted);font-size:12px}
.summary{margin:0 0 16px;color:#4d5968;font-size:14px;flex:1}
.card-link{display:inline-flex;align-items:center;align-self:flex-start;color:var(--im-blue);font-weight:800;font-size:14px}
.card-link::after{content:"→";margin-left:6px}
.transfer-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.transfer-card{padding:19px;background:var(--im-white);border:1px solid var(--im-border);border-left:4px solid var(--im-green);border-radius:var(--im-radius)}
.transfer-card.watch{border-left-color:var(--im-orange)}
.transfer-card h3{margin:8px 0 9px;font-size:18px}
.route{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:9px;margin:12px 0;padding:10px;background:#f7f9fc;border-radius:7px;font-size:14px}
.route .arrow{color:var(--im-orange);font-weight:900}
.route span:last-child{text-align:right}
.transfer-card p{margin:8px 0;color:#4e5967;font-size:14px}
.status-line{font-size:13px!important;color:var(--im-blue-dark)!important;font-weight:700}
.editorial-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.editorial-card{display:flex;gap:15px;padding:19px;background:var(--im-white);border:1px solid var(--im-border);border-radius:var(--im-radius)}
.editorial-icon{flex:0 0 46px;width:46px;height:46px;display:grid;place-items:center;border-radius:8px;background:#edf3ff;color:var(--im-blue);font-size:22px}
.editorial-card h3{margin:0 0 7px;font-size:17px;line-height:1.45}
.editorial-card p{margin:0 0 10px;color:var(--im-muted);font-size:14px}
.topic-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.topic-card img{width:100%;height:148px;object-fit:cover;background:#eaf1fb}
.topic-body{padding:20px}
.topic-body h3{margin:8px 0;font-size:18px}
.topic-body p{margin:0 0 14px;color:var(--im-muted);font-size:14px}
.download-wrap{display:grid;grid-template-columns:1fr 1.35fr;gap:24px;align-items:start}
.download-aside{position:sticky;top:92px;padding:24px;background:linear-gradient(160deg,var(--im-blue-dark),var(--im-blue));color:var(--im-white);border-radius:var(--im-radius)}
.download-aside img.phone{width:250px;height:330px;margin:0 auto 18px}
.qr-row{display:flex;align-items:center;gap:14px;padding:14px;background:rgba(255,255,255,.1);border-radius:8px}
.qr-row img{width:92px;height:92px;background:var(--im-white);border-radius:6px}
.qr-row p{margin:0;color:#dce9ff;font-size:13px}
.download-list{display:grid;gap:16px}
.download-card{padding:22px}
.download-card h3{margin:0 0 7px;font-size:19px;color:var(--im-blue-dark)}
.download-card dl{display:grid;grid-template-columns:92px 1fr;gap:7px 12px;margin:15px 0;font-size:14px}
.download-card dt{color:var(--im-muted)}
.download-card dd{margin:0}
.disabled-link{display:inline-flex;align-items:center;justify-content:center;min-height:44px;width:100%;padding:10px 16px;border-radius:7px;background:#e8edf5;color:#556273;font-weight:700;cursor:not-allowed}
.feature-list{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px;margin-top:24px}
.feature-card{padding:15px;text-align:center}
.feature-card img{width:58px;height:58px;margin:0 auto 9px}
.feature-card strong{display:block;font-size:14px}
.updates{display:grid;gap:0;background:var(--im-white);border:1px solid var(--im-border);border-radius:var(--im-radius);overflow:hidden}
.update-row{display:grid;grid-template-columns:110px 118px 100px 1fr 130px;gap:15px;align-items:start;padding:18px 20px;border-bottom:1px solid var(--im-border)}
.update-row:last-child{border-bottom:0}
.version{color:var(--im-blue);font-weight:900}
.update-row time,.update-type,.device{color:var(--im-muted);font-size:13px}
.update-copy strong{display:block;margin-bottom:3px}
.update-copy span{color:var(--im-muted);font-size:14px}
.about-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:22px}
.panel{padding:23px;background:var(--im-white);border:1px solid var(--im-border);border-radius:var(--im-radius)}
.panel h3{margin:0 0 12px;color:var(--im-blue-dark)}
.panel p{margin:0 0 13px;color:#4b5867}
.facts{margin:0}
.facts div{display:grid;grid-template-columns:110px 1fr;gap:12px;padding:10px 0;border-bottom:1px solid var(--im-border)}
.facts div:last-child{border-bottom:0}
.facts dt{color:var(--im-muted)}
.facts dd{margin:0;font-weight:700;overflow-wrap:anywhere}
.principles{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px 16px;margin:0;padding:0;list-style:none}
.principles li{position:relative;padding-left:20px;color:#4b5867;font-size:14px}
.principles li::before{content:"✓";position:absolute;left:0;color:var(--im-green);font-weight:900}
.faq-list{display:grid;gap:10px}
.faq-item{background:var(--im-white);border:1px solid var(--im-border);border-radius:8px;overflow:hidden}
.faq-item h3{margin:0}
.faq-question{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 18px;border:0;background:transparent;color:var(--im-text);text-align:left;font-weight:800;cursor:pointer}
.faq-question::after{content:"+";color:var(--im-blue);font-size:20px}
.faq-item.open .faq-question::after{content:"−"}
.faq-answer{padding:0 18px 17px;color:var(--im-muted);font-size:14px}
.js-enabled .faq-answer{display:none}
.js-enabled .faq-item.open .faq-answer{display:block}
.site-footer{padding:50px 0 24px;background:#061b3d;color:#d6e1f1}
.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:36px}
.footer-intro strong{display:block;margin-bottom:10px;color:var(--im-white);font-size:22px}
.footer-intro p{margin:0;color:#adbed4;font-size:14px}
.footer-col h3{margin:0 0 12px;color:var(--im-white);font-size:15px}
.footer-col a{display:block;margin:8px 0;color:#bdcbe0;font-size:14px}
.footer-col a:hover{color:var(--im-white)}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;margin-top:34px;padding-top:20px;border-top:1px solid rgba(255,255,255,.15);color:#aebfd5;font-size:13px}
:focus-visible{outline:3px solid rgba(255,106,19,.4);outline-offset:2px}
@media (max-width:980px){
  .site-nav a{padding-inline:6px;font-size:13px}
  .hero-grid{grid-template-columns:1fr .8fr;gap:20px}
  h1{font-size:36px}
  .news-grid,.editorial-grid,.topic-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .feature-list{grid-template-columns:repeat(3,minmax(0,1fr))}
  .update-row{grid-template-columns:85px 100px 1fr}
  .update-type,.device{grid-row:2}.device{grid-column:2}.update-copy{grid-column:3;grid-row:1/3}
}
@media (max-width:760px){
  html{scroll-padding-top:66px}
  .container{width:min(calc(100% - 24px),var(--im-maxw))}
  .header-inner{min-height:62px;flex-wrap:wrap}
  .brand img{width:36px;height:36px}
  .menu-btn{display:block}
  .site-nav{display:none;width:100%;flex-direction:column;align-items:stretch;padding:0 0 12px}
  .site-nav.open{display:flex}
  .site-nav a{padding:10px 12px;font-size:14px}
  .hero-grid{grid-template-columns:1fr;padding:42px 0 36px}
  h1{font-size:26px}
  .hero-copy{font-size:15px}
  .hero-actions .btn{width:100%}
  .hero-visual img{width:100%;height:auto;max-height:320px}
  .sport-strip-inner{grid-template-columns:repeat(3,1fr)}
  .sport-strip span{border-bottom:1px solid var(--im-border)}
  .section{padding:48px 0}
  .section-head{display:block}
  .section h2{font-size:25px}
  .source-note{text-align:left;max-width:none;margin-top:10px}
  .news-grid,.editorial-grid,.topic-grid,.transfer-grid{grid-template-columns:1fr}
  .download-wrap,.about-grid{grid-template-columns:1fr}
  .download-aside{position:static}
  .feature-list{grid-template-columns:repeat(2,minmax(0,1fr))}
  .update-row{grid-template-columns:80px 1fr;gap:6px 10px;padding:15px}
  .update-type{grid-column:1;grid-row:2}.device{grid-column:1;grid-row:3}.update-copy{grid-column:2;grid-row:1/4}
  .principles{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-bottom{display:block}
  .footer-bottom span{display:block;margin-top:8px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none!important}
}