:root{
 --bg:#050a12;--bg2:#071425;--panel:#0a1729;--panel2:#0d1d33;
 --line:rgba(116,174,255,.20);--blue:#19a7ff;--blue2:#1678ff;
 --cyan:#4dd7ff;--gold:#ffd35c;--text:#fff;--muted:#aebbd0;--red:#ff4c5d;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
 margin:0;color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;
 background:
 radial-gradient(circle at 50% -20%,rgba(20,109,238,.34),transparent 32%),
 radial-gradient(circle at 12% 25%,rgba(36,183,255,.08),transparent 20%),
 linear-gradient(180deg,#07101e 0%,#050a12 43%,#03070d 100%);
 min-height:100vh;overflow-x:hidden
}
body:before{
 content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.36;
 background-image:
 radial-gradient(circle at 10% 15%,#fff 0 1px,transparent 1.5px),
 radial-gradient(circle at 80% 22%,#79cfff 0 1px,transparent 1.5px),
 radial-gradient(circle at 34% 72%,#fff 0 1px,transparent 1.4px),
 radial-gradient(circle at 68% 84%,#8dd7ff 0 1px,transparent 1.4px);
 background-size:190px 190px,260px 260px,230px 230px,310px 310px
}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.wrap{width:min(1040px,92%);margin:auto}
.site-top{padding:58px 0 32px;text-align:center}
.orbit-logo{
 width:90px;height:90px;margin:0 auto 15px;border-radius:50%;position:relative;
 display:grid;place-items:center;font-size:48px;
 background:radial-gradient(circle,#15325e 0%,#0a1930 60%,#050b15 100%);
 box-shadow:0 0 50px rgba(34,159,255,.24),inset 0 0 0 1px rgba(100,194,255,.18)
}
.orbit-logo:after{
 content:"";position:absolute;width:112px;height:44px;border:2px solid rgba(113,201,255,.72);
 border-left-color:transparent;border-right-color:transparent;border-radius:50%;transform:rotate(-24deg)
}
.site-title{font-size:clamp(34px,5vw,54px);font-weight:950;letter-spacing:4px;margin:0}
.site-en{margin-top:7px;color:#79c9ff;letter-spacing:7px;font-size:12px;font-weight:800}
.tagline{margin:14px 0 0;color:#d5e8ff;font-size:15px;letter-spacing:2px}
.top-divider{width:88px;height:3px;border-radius:999px;background:linear-gradient(90deg,transparent,var(--blue),transparent);margin:20px auto 0}
.platform-stack{display:grid;gap:16px;padding:10px 0 42px}
.platform-card{
 display:grid;grid-template-columns:225px 1fr 185px;gap:24px;align-items:center;
 padding:22px 24px;border:1px solid var(--line);border-radius:20px;
 background:linear-gradient(135deg,rgba(12,29,51,.94),rgba(6,15,28,.96));
 box-shadow:0 15px 46px rgba(0,0,0,.28),inset 0 1px 0 rgba(255,255,255,.035);
 position:relative;overflow:hidden
}
.platform-card:before{
 content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:linear-gradient(180deg,var(--blue),transparent)
}
.logo-box{
 height:95px;display:flex;align-items:center;justify-content:center;padding:10px 16px;
 border-radius:15px;background:#020508;border:1px solid rgba(255,255,255,.055)
}
.logo-box img{max-height:74px;width:auto;object-fit:contain}
.platform-card h2{font-size:25px;margin:0 0 9px;font-weight:950}
.crown{font-size:14px;color:#eaf4ff;line-height:1.65}
.bonus{display:inline-block;margin-top:10px;padding:6px 11px;border-radius:999px;background:rgba(255,211,92,.1);border:1px solid rgba(255,211,92,.28);color:var(--gold);font-size:13px;font-weight:900}
.warning{margin-top:10px;color:#ff7b86;font-weight:900;font-size:13px;line-height:1.55}
.card-actions{display:grid;gap:9px}
.action-btn{
 display:flex;align-items:center;justify-content:center;min-height:43px;padding:10px 12px;border-radius:10px;
 background:linear-gradient(180deg,#1788ff,#0969dd);font-weight:900;font-size:14px;
 box-shadow:0 8px 22px rgba(0,112,255,.20)
}
.action-btn.alt{background:rgba(255,255,255,.055);border:1px solid rgba(91,176,255,.26);box-shadow:none}
.action-btn:hover{filter:brightness(1.12)}
.section{padding:38px 0}
.section-title{font-size:26px;text-align:center;margin:0 0 18px;font-weight:950}
.section-sub{text-align:center;color:var(--muted);font-size:14px;line-height:1.8;max-width:820px;margin:0 auto 24px}
.info-panel{
 border:1px solid var(--line);border-radius:18px;background:rgba(8,20,36,.78);padding:23px;
 box-shadow:0 15px 45px rgba(0,0,0,.20)
}
.info-panel h2,.content-card h2{font-size:22px;margin:0 0 12px}
.info-panel p,.content-card p,.content-card li{color:var(--muted);line-height:1.82;font-size:14px}
.link-groups{display:grid;gap:14px}
.group{
 display:grid;grid-template-columns:190px 1fr;gap:18px;align-items:start;padding:20px 22px;
 border:1px solid var(--line);background:rgba(8,20,36,.72);border-radius:17px
}
.group-label{font-weight:950;color:#e7f4ff}
.pills{display:flex;gap:8px;flex-wrap:wrap}
.pill{
 padding:9px 12px;border-radius:999px;border:1px solid rgba(70,167,255,.24);
 background:rgba(38,124,214,.09);font-size:13px;color:#bfe2ff
}
.pill:hover{background:rgba(38,124,214,.18);color:#fff}
.trustline{
 margin-top:28px;text-align:center;font-size:14px;letter-spacing:2px;font-weight:900;color:#e8f5ff;
 padding:16px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)
}
.contact-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.contact{
 text-align:center;padding:18px 12px;border:1px solid var(--line);border-radius:15px;background:rgba(9,22,39,.8)
}
.contact b{display:block;margin-bottom:7px}.contact span,.contact a{font-size:13px;color:#9fd5ff;word-break:break-word}
footer{padding:28px 0 38px;text-align:center;color:#8290a7;font-size:12px}
.legal{margin-top:10px;color:#68768a}
.breadcrumb{padding:26px 0 0;color:#829bb6;font-size:13px}
.pagehead{text-align:center;padding:34px 0 20px}
.pagehead .site-en{margin-bottom:10px}
.pagehead h1{font-size:clamp(30px,4vw,45px);margin:10px 0 12px}
.pagehead p{color:var(--muted);line-height:1.75;max-width:790px;margin:0 auto}
.content-layout{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:18px;padding:18px 0 52px}
.content-card{
 border:1px solid var(--line);border-radius:18px;background:rgba(8,20,36,.80);padding:25px;
 box-shadow:0 15px 46px rgba(0,0,0,.20)
}
.content-card h2{margin-top:28px}.content-card h2:first-child{margin-top:0}
.content-card h3{margin:22px 0 7px;font-size:17px}
.content-card ul{padding-left:20px}
.side{display:grid;gap:12px;align-content:start}
.sidebox{border:1px solid var(--line);border-radius:16px;background:rgba(8,20,36,.82);padding:17px}
.sidebox b{display:block;margin-bottom:10px}
.sidebox a{display:block;color:#9fd5ff;font-size:13px;line-height:1.7;margin:5px 0}
.notice{padding:13px 15px;background:rgba(255,76,93,.08);border:1px solid rgba(255,76,93,.22);border-radius:12px;color:#ffb3ba;font-weight:800;line-height:1.65;font-size:13px}
.table-scroll{overflow-x:auto}
table{width:100%;border-collapse:collapse;min-width:650px}
th,td{padding:12px 10px;border-bottom:1px solid var(--line);text-align:left;font-size:13px}
th{color:#fff}td{color:var(--muted)}
details{border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.025);padding:14px 16px;margin:10px 0}
summary{font-weight:900;cursor:pointer}
details p{margin-bottom:0}
@media(max-width:820px){
 .platform-card{grid-template-columns:160px 1fr;gap:16px}.card-actions{grid-column:1/-1;grid-template-columns:1fr 1fr}
 .content-layout{grid-template-columns:1fr}.contact-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:560px){
 .wrap{width:94%}.site-top{padding-top:38px}.site-title{letter-spacing:2px}
 .platform-card{display:block;padding:17px}.logo-box{height:82px;margin-bottom:15px}
 .platform-card h2{text-align:center;font-size:22px}.crown{text-align:center}.bonus{display:block;text-align:center;width:max-content;max-width:100%;margin:10px auto 0}
 .warning{text-align:center}.card-actions{grid-template-columns:1fr 1fr;margin-top:15px}
 .group{grid-template-columns:1fr;gap:10px}.contact-grid{grid-template-columns:1fr}
 .section{padding:30px 0}.content-card{padding:19px}
}


/* 首页底部“更多详情”菜单 */
.more-details{padding:18px 0 42px}
.more-details-box{
  border:1px solid var(--line);
  border-radius:18px;
  background:rgba(8,20,36,.78);
  overflow:hidden;
}
.more-details-box summary{
  list-style:none;
  cursor:pointer;
  padding:18px 22px;
  font-size:18px;
  font-weight:950;
  text-align:center;
  color:#eaf5ff;
  background:linear-gradient(180deg,rgba(25,167,255,.10),rgba(255,255,255,.02));
  border-bottom:1px solid transparent;
}
.more-details-box summary::-webkit-details-marker{display:none}
.more-details-box[open] summary{border-bottom-color:var(--line)}
.more-details-content{padding:18px}
.more-detail-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.more-group{
  padding:15px;
  border:1px solid rgba(116,174,255,.16);
  border-radius:14px;
  background:rgba(255,255,255,.025)
}
.more-group b{display:block;margin-bottom:10px;color:#fff}
.more-group a{
  display:block;
  padding:7px 0;
  color:#9fd5ff;
  font-size:13px;
  line-height:1.5
}
.more-group a:hover{color:#fff}
@media(max-width:820px){.more-detail-grid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.more-detail-grid{grid-template-columns:1fr}}


/* SEO V4: internal content trust/meta only; homepage visible layout unchanged */
.content-meta{
  display:flex;gap:8px;flex-wrap:wrap;margin:0 0 18px;padding:10px 12px;
  border:1px solid rgba(116,174,255,.14);border-radius:12px;
  background:rgba(255,255,255,.025);color:#8fa8c4;font-size:12px
}
.content-meta span{display:inline-flex;align-items:center;gap:5px}
.content-meta a{color:#9fd5ff}
.source-note{
  margin:22px 0 0;padding:14px 16px;border-radius:13px;
  border:1px solid rgba(116,174,255,.15);background:rgba(26,93,151,.06);
  color:#91a7c2;font-size:12px;line-height:1.75
}
.checklist{
  display:grid;gap:9px;margin:12px 0
}
.checkitem{
  padding:12px 14px;border:1px solid rgba(116,174,255,.13);
  border-radius:12px;background:rgba(255,255,255,.023);
  color:#aec0d6;font-size:14px;line-height:1.7
}
.site-map-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.site-map-group{padding:15px;border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.025)}
.site-map-group b{display:block;margin-bottom:9px}
.site-map-group a{display:block;color:#9fd5ff;font-size:13px;line-height:1.55;padding:6px 0}
@media(max-width:760px){.site-map-grid{grid-template-columns:1fr}}


/* SEO V5: performance and semantic refinements; visual design unchanged */
.platform-card,
.info-panel,
.group,
.content-card,
.sidebox,
.more-details-box{
  content-visibility:auto;
  contain-intrinsic-size:auto 280px;
}
.logo-box img{
  object-fit:contain;
}
.skip-link{
  position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden;
}
.skip-link:focus{
  left:12px;top:12px;width:auto;height:auto;overflow:visible;z-index:9999;
  padding:10px 14px;border-radius:10px;background:#fff;color:#07101e;font-weight:900;
}
.content-toc{
  margin:0 0 18px;padding:14px 16px;border:1px solid rgba(116,174,255,.14);
  border-radius:13px;background:rgba(255,255,255,.02)
}
.content-toc b{display:block;margin-bottom:8px}
.content-toc a{display:block;color:#9fd5ff;font-size:13px;line-height:1.55;padding:4px 0}
.hub-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.hub-card{padding:17px;border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.025)}
.hub-card h2{font-size:18px;margin:0 0 8px}
.hub-card p{margin:0 0 10px}
.hub-card a{color:#9fd5ff;font-weight:800}
@media(max-width:680px){.hub-grid{grid-template-columns:1fr}}


/* SEO V6 keyword-intent architecture; homepage visible layout unchanged */
.search-intent-box{
  margin:0 0 18px;padding:14px 16px;border:1px solid rgba(77,215,255,.16);
  border-radius:13px;background:rgba(25,167,255,.045)
}
.search-intent-box b{display:block;margin-bottom:7px;color:#eaf7ff}
.search-intent-box ul{margin:0;padding-left:20px;color:#9fb4cc;font-size:13px;line-height:1.75}
.keyword-related{margin-top:26px}
.keyword-matrix-table{overflow:auto}
.keyword-matrix-table table{min-width:980px}
.kw-p1{color:#ffd35c;font-weight:900}
.kw-p2{color:#8bd9ff;font-weight:900}
.kw-p3{color:#aebbd0;font-weight:900}


/* SEO V7: competitor-brand reference matrix; homepage top layout unchanged */
.brand-ref-badge{
  display:inline-flex;align-items:center;gap:6px;margin:0 0 14px;padding:7px 10px;
  border-radius:999px;border:1px solid rgba(255,211,92,.25);
  background:rgba(255,211,92,.07);color:#ffd35c;font-size:12px;font-weight:900
}
.brand-ref-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.brand-ref-card{
  padding:17px;border:1px solid var(--line);border-radius:15px;
  background:rgba(255,255,255,.025)
}
.brand-ref-card h2{font-size:19px;margin:0 0 8px}
.brand-ref-card p{margin:0 0 10px}
.compare-dimensions{display:grid;gap:10px;margin:14px 0}
.compare-row{
  display:grid;grid-template-columns:165px 1fr 1fr;gap:12px;padding:13px;
  border:1px solid rgba(116,174,255,.13);border-radius:12px;
  background:rgba(255,255,255,.022);font-size:13px;line-height:1.65
}
.compare-row b{color:#fff}.compare-row span{color:#aebbd0}
.source-list{margin-top:22px;padding:14px 16px;border:1px solid rgba(116,174,255,.15);
  border-radius:13px;background:rgba(26,93,151,.05)}
.source-list b{display:block;margin-bottom:7px}
.source-list a{display:block;color:#9fd5ff;font-size:12px;line-height:1.65;word-break:break-all}
.nonofficial{
  padding:13px 15px;margin-bottom:18px;border:1px solid rgba(255,211,92,.2);
  border-radius:12px;background:rgba(255,211,92,.05);color:#e8d89b;
  font-size:13px;line-height:1.7
}
@media(max-width:720px){
  .brand-ref-grid{grid-template-columns:1fr}
  .compare-row{grid-template-columns:1fr}
}


/* V8 multilingual switcher: fixed compact control, homepage content layout unchanged */
.lang-switcher{
  position:fixed;
  right:14px;
  bottom:14px;
  z-index:9998;
  display:flex;
  align-items:center;
  gap:7px;
  padding:7px 9px;
  border:1px solid rgba(116,174,255,.28);
  border-radius:12px;
  background:rgba(5,13,25,.90);
  backdrop-filter:blur(12px);
  box-shadow:0 10px 28px rgba(0,0,0,.28);
}
.lang-switcher .lang-icon{
  font-size:15px;
  line-height:1;
}
.lang-switcher select{
  appearance:none;
  -webkit-appearance:none;
  border:0;
  outline:0;
  color:#eaf5ff;
  background:transparent;
  font-size:12px;
  font-weight:850;
  padding:3px 18px 3px 2px;
  cursor:pointer;
  background-image:
    linear-gradient(45deg,transparent 50%,#8fcfff 50%),
    linear-gradient(135deg,#8fcfff 50%,transparent 50%);
  background-position:
    calc(100% - 9px) 50%,
    calc(100% - 5px) 50%;
  background-size:4px 4px,4px 4px;
  background-repeat:no-repeat;
}
.lang-switcher select option{
  color:#07101e;
  background:#fff;
}
#google_translate_element{
  position:fixed!important;
  left:-9999px!important;
  top:-9999px!important;
  width:1px!important;
  height:1px!important;
  overflow:hidden!important;
}
.goog-te-banner-frame.skiptranslate,
.goog-te-banner-frame{
  display:none!important;
}
body{
  top:0!important;
}
.goog-logo-link,
.goog-te-gadget span{
  display:none!important;
}
.goog-te-gadget{
  color:transparent!important;
  font-size:0!important;
}
@media(max-width:560px){
  .lang-switcher{
    right:9px;
    bottom:9px;
    padding:6px 8px;
    border-radius:11px;
  }
  .lang-switcher select{
    max-width:138px;
    font-size:11px;
  }
}


/* V9 static multilingual SEO */
.lang-switcher{
  position:fixed;right:14px;bottom:14px;z-index:9998;
  display:flex;align-items:center;gap:5px;flex-wrap:wrap;
  max-width:min(92vw,520px);padding:7px 9px;
  border:1px solid rgba(116,174,255,.28);border-radius:12px;
  background:rgba(5,13,25,.92);backdrop-filter:blur(12px);
  box-shadow:0 10px 28px rgba(0,0,0,.28)
}
.lang-switcher a{
  padding:4px 7px;border-radius:8px;color:#cfeaff;font-size:11px;font-weight:800
}
.lang-switcher a[aria-current="page"]{
  background:rgba(25,167,255,.18);color:#fff
}
.lang-switcher select,.lang-switcher .lang-icon{display:none!important}
.localized-hero-note{
  max-width:820px;margin:12px auto 0;color:#aebbd0;font-size:13px;line-height:1.7;text-align:center
}
.locale-keywords{
  margin:18px 0;padding:13px 15px;border:1px solid rgba(116,174,255,.14);
  border-radius:12px;background:rgba(255,255,255,.02);font-size:12px;color:#91a7c2;line-height:1.7
}
@media(max-width:560px){
 .lang-switcher{left:8px;right:8px;bottom:8px;justify-content:center}
 .lang-switcher a{font-size:10px;padding:4px 6px}
}


/* V13 exposure strengthening */
.v13-answer{
  margin:16px 0 20px;padding:16px 17px;border:1px solid rgba(79,164,255,.2);
  border-radius:14px;background:linear-gradient(135deg,rgba(25,111,191,.09),rgba(255,255,255,.018));
}
.v13-answer b{display:block;margin-bottom:7px;color:#fff;font-size:15px}
.v13-answer p{margin:0;color:#c3d2e5;line-height:1.75}
.v13-intents{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin:16px 0 22px
}
.v13-intent{
  padding:12px 13px;border:1px solid rgba(116,174,255,.14);border-radius:11px;
  background:rgba(255,255,255,.02);font-size:13px;line-height:1.65;color:#bdcce0
}
.v13-intent strong{display:block;color:#fff;margin-bottom:3px}
.v13-related{
  margin:22px 0;padding:16px;border:1px solid rgba(116,174,255,.14);
  border-radius:14px;background:rgba(7,19,35,.5)
}
.v13-related h2{margin-top:0}
.v13-related-links{display:flex;flex-wrap:wrap;gap:9px}
.v13-related-links a{
  display:inline-flex;padding:8px 11px;border-radius:9px;
  background:rgba(32,137,235,.1);border:1px solid rgba(64,163,255,.14);
  color:#a9dbff;font-size:12px;font-weight:800
}
.v13-toc{
  margin:14px 0 20px;padding:14px 16px;border-radius:13px;
  border:1px solid rgba(116,174,255,.13);background:rgba(255,255,255,.018)
}
.v13-toc b{display:block;margin-bottom:8px}
.v13-toc a{display:inline-block;margin:4px 13px 4px 0;color:#9fd5ff;font-size:12px}
.v13-check{
  margin:18px 0;padding:14px 16px;border-left:3px solid #4b9eea;
  border-radius:8px;background:rgba(55,142,221,.055);font-size:13px;line-height:1.75;color:#b7c9dc
}
@media(max-width:720px){
  .v13-intents{grid-template-columns:1fr}
}