/* Official website components captured 2026-10-20. Scope keeps topic styles independent. */
.official-header-shell{position:sticky;top:0;z-index:80}.official-footer-shell{padding-bottom:88px}.official-shell .site-header{position:relative}.official-shell .site-footer{padding:44px 0 0}.official-shell nav{padding:0;margin:0}.official-shell button{border:0}.official-shell .brand{font-size:inherit;letter-spacing:normal;line-height:inherit}.official-shell .phone{margin:0;letter-spacing:normal}.official-shell .site-footer h2{line-height:1.5}.official-shell .caption{max-width:none;margin:0}.official-shell .text-link{font-weight:400}.official-shell [hidden]{display:none!important}body.menu-open{overflow:hidden}
.official-shell{
  --color-primary:#B51F24; --color-primary-hover:#94171C; --color-secondary:#2E2421;
  --color-accent:#997445; --color-bg:#FAF7F2; --color-surface:#FFFFFF;
  --color-section-cream:#FBF3E6; --color-section-rose:#F8E9E7;
  --color-text:#292321; --color-text-secondary:#655D58; --color-inverse:#FFFFFF;
  --color-border:#E2DAD2; --color-control-border:#84766C; --color-focus:#9A431C;
  --color-success:#206348; --color-success-bg:#ECF5EE;
  --color-pending:#805600; --color-pending-bg:#FFF5D6;
  --color-error:#A51D2D; --color-error-bg:#FFF0F1;
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",system-ui,sans-serif;
  --font-number:Arial,Helvetica,system-ui,sans-serif;
  --space-1:4px; --space-2:8px; --space-3:12px; --space-4:16px; --space-6:24px;
  --space-8:32px; --space-12:48px; --space-16:64px; --space-20:80px; --space-24:96px;
  --container:1280px; --gutter:48px; --section-space:96px;
  --radius-button:6px; --radius-card:8px; --radius-image:12px;
  --header-height:80px; --ease:cubic-bezier(.2,.65,.3,1);
}
.official-shell *{ box-sizing:border-box; }
.official-shell{ scroll-behavior:smooth; scroll-padding-top:100px; interpolate-size:allow-keywords; }
.official-shell{ margin:0; background:var(--color-bg); color:var(--color-text); font:400 16px/1.75 var(--font-sans); -webkit-font-smoothing:antialiased; }
body.menu-open .official-shell{ overflow:hidden; }
.official-shell button,.official-shell input,.official-shell select,.official-shell textarea{ font:inherit; }
.official-shell button,.official-shell a,.official-shell input,.official-shell select,.official-shell textarea,.official-shell summary{ -webkit-tap-highlight-color:transparent; }
.official-shell button{ cursor:pointer; }
.official-shell a{ color:inherit; text-decoration:none; }
.official-shell button{ color:inherit; }
.official-shell img{ display:block; max-width:100%; height:auto; }
.official-shell figure,.official-shell blockquote{ margin:0; }
.official-shell p,.official-shell h1,.official-shell h2,.official-shell h3,.official-shell h4{ margin:0; }
.official-shell h1,.official-shell h2,.official-shell h3{ font-weight:700; }
.official-shell h2{ font-size:40px; line-height:1.3; letter-spacing:-.025em; text-wrap:balance; }
.official-shell h3{ font-size:24px; line-height:1.45; letter-spacing:-.01em; }
.official-shell ul,.official-shell ol{ margin:0; padding:0; list-style:none; }
.official-shell button{ border:0; }
.official-shell [hidden]{ display:none !important; }
.official-shell :focus-visible{ outline:2px solid var(--color-focus); outline-offset:4px; }
.official-shell .dark-section :focus-visible,.official-shell .final-cta :focus-visible{ outline-color:white; }
.official-shell ::selection{ background:var(--color-primary); color:white; }
.official-shell .container{ width:min(var(--container),calc(100% - var(--gutter)*2)); margin-inline:auto; }
.official-shell .section{ padding-block:var(--section-space); }
.official-shell .eyebrow{ display:flex; align-items:center; gap:12px; font:600 13px/1.5 var(--font-sans); letter-spacing:.09em; color:var(--color-primary); margin-bottom:24px; }
.official-shell .body-large{ font-size:20px; line-height:1.7; color:var(--color-text-secondary); }
.official-shell .caption,.official-shell figcaption{ font-size:14px; line-height:1.6; }
.official-shell .muted{ color:var(--color-text-secondary); }
.official-shell .text-link{ display:inline-flex; align-items:center; gap:20px; min-height:44px; font-weight:600; color:var(--color-primary); }
.official-shell .text-link span:last-child{ transition:transform .2s var(--ease); }
.official-shell .text-link:hover{ text-decoration:underline; text-underline-offset:5px; }
.official-shell .text-link:hover span:last-child{ transform:translate(2px,-2px); }
.official-shell .button{ display:inline-flex; align-items:center; justify-content:center; gap:24px; min-height:48px; padding:12px 24px; border:1px solid transparent; border-radius:var(--radius-button); font-size:16px; font-weight:600; line-height:1.25; transition:background .18s,color .18s,border-color .18s; }
.official-shell .button-primary{ background:var(--color-primary); color:white; }
.official-shell .button-primary:hover{ background:var(--color-primary-hover); }
.official-shell .button-outline{ border-color:var(--color-secondary); color:var(--color-secondary); }
.official-shell .button-outline:hover{ background:var(--color-secondary); color:white; }
.official-shell .button-inverse{ border-color:rgba(255,255,255,.7); color:white; }
.official-shell .button-inverse:hover{ background:rgba(255,255,255,.1); }
.official-shell .button-white{ background:white; color:var(--color-primary); }
.official-shell .button-white:hover{ background:var(--color-bg); }
.official-shell .button-large{ min-height:52px; padding-inline:32px; }
.official-shell .inline-actions{ display:flex; gap:28px; flex-wrap:wrap; }
.official-shell .skip-link{ position:fixed; top:8px; left:16px; z-index:200; background:white; padding:12px 24px; box-shadow:0 2px 20px #0002; transform:translateY(-160%); clip-path:inset(50%); }
.official-shell .skip-link:focus{ transform:translateY(0); clip-path:none; }
.official-shell .section-top{ display:flex; align-items:flex-end; justify-content:space-between; gap:48px; margin-bottom:48px; }
.official-shell .section-top>p{ color:var(--color-text-secondary); max-width:380px; }
.official-shell .section-foot{ display:flex; justify-content:space-between; align-items:center; gap:24px; margin-top:32px; }
.official-shell .site-header{ position:sticky; top:0; z-index:50; height:var(--header-height); background:var(--color-surface); border-bottom:1px solid var(--color-border); transition:box-shadow .15s; }
.official-shell .site-header.is-scrolled{ box-shadow:0 4px 20px #17212b0a; }
.official-shell .header-inner{ display:flex; height:100%; align-items:center; justify-content:space-between; gap:28px; }
.official-shell .brand{ display:flex; align-items:center; gap:14px; flex-shrink:0; }
.official-shell .brand>img{ width:168px; height:auto; }
.official-shell .brand-edition{ display:none; font-size:12px; border-left:1px solid var(--color-border); padding-left:16px; line-height:1.7; color:var(--color-text-secondary); }
.official-shell .main-nav{ display:flex; align-items:center; gap:26px; font-size:15px; font-weight:500; }
.official-shell .main-nav>a,.official-shell .nav-group>a{ display:flex; align-items:center; min-height:48px; white-space:nowrap; }
.official-shell .main-nav>a:hover,.official-shell .nav-group>a:hover{ color:var(--color-primary); }
.official-shell .nav-group{ display:flex; position:relative; align-items:center; gap:2px; }
.official-shell .nav-toggle{ width:26px; height:44px; display:grid; place-items:center; background:none; }
.official-shell .chevron{ display:block; width:7px; height:7px; border-right:1.5px solid; border-bottom:1.5px solid; transform:rotate(45deg) translateY(-2px); }
.official-shell .nav-toggle[aria-expanded=true] .chevron{ transform:rotate(225deg); }
.official-shell .nav-submenu{ position:absolute; top:calc(100% + 10px); left:-24px; padding:16px; min-width:190px; border:1px solid var(--color-border); border-radius:8px; background:white; box-shadow:0 12px 28px #17212b15; }
.official-shell .nav-submenu a{ display:block; padding:9px 12px; min-height:44px; border-radius:4px; }
.official-shell .nav-submenu a:hover{ background:var(--color-bg); color:var(--color-primary); }
.official-shell .header-actions{ display:flex; gap:12px; margin-left:8px; }
.official-shell .header-actions .button{ padding-inline:20px; min-height:44px; font-size:14px; gap:16px; }
.official-shell .menu-toggle{ display:none; width:48px; height:48px; background:none; padding:14px 10px; }
.official-shell .menu-toggle span{ display:block; height:2px; width:26px; background:var(--color-secondary); margin:6px 0; transition:transform .2s; }
.official-shell .intro{ padding-block:80px; }
.official-shell .intro-grid{ display:grid; grid-template-columns:1fr 1fr; gap:112px; }
.official-shell .intro .body-large{ margin-top:24px; max-width:550px; }
.official-shell .intro .text-link{ margin-top:20px; }
.official-shell .facts-block{ padding-top:8px; }
.official-shell .stat{ display:flex; align-items:center; justify-content:space-between; gap:24px; padding:24px 0; border-bottom:1px solid var(--color-border); }
.official-shell .stat:first-child{ padding-top:0; }
.official-shell .stat>div{ white-space:nowrap; }
.official-shell .stat strong{ font-family:var(--font-number); font-weight:500; font-size:64px; line-height:1.1; letter-spacing:-.055em; }
.official-shell .stat>div>span{ font-size:18px; margin-left:8px; }
.official-shell .stat p{ min-width:160px; line-height:1.7; font-weight:500; }
.official-shell .stat p span{ font-weight:400; font-size:13px; color:var(--color-text-secondary); }
.official-shell .value-section{ background:white; }
.official-shell .value-grid{ display:grid; grid-template-columns:minmax(0,5fr) minmax(0,7fr); gap:80px; align-items:center; }
.official-shell .value-copy .body-large{ margin-top:24px; }
.official-shell .value-steps{ margin-top:32px; }
.official-shell .value-steps li{ display:flex; gap:20px; padding:16px 0; border-top:1px solid var(--color-border); }
.official-shell .value-steps li>span{ font-family:var(--font-number); font-size:13px; color:var(--color-text-secondary); padding-top:3px; }
.official-shell .value-steps h3{ font-size:18px; font-weight:600; }
.official-shell .value-steps p{ font-size:14px; color:var(--color-text-secondary); margin-top:5px; }
.official-shell .value-copy>.text-link{ margin-top:16px; }
.official-shell .value-photo{ position:relative; align-self:stretch; padding-top:40px; display:flex; flex-direction:column; justify-content:center; }
.official-shell .value-photo img{ width:100%; height:570px; object-fit:cover; object-position:53% 50%; border-radius:var(--radius-image) 0 0 0; }
.official-shell .value-photo figcaption{ display:flex; justify-content:space-between; padding-top:16px; color:var(--color-text-secondary); gap:12px; }
.official-shell .photo-corner{ position:absolute; width:72px; height:72px; border-left:3px solid var(--color-primary); border-bottom:3px solid var(--color-primary); left:-20px; bottom:64px; pointer-events:none; }
.official-shell .evidence-strip{ border-top:1px solid var(--color-border); margin-top:64px; padding-top:24px; display:flex; gap:32px; align-items:center; }
.official-shell .evidence-strip>span{ font-size:14px; font-weight:600; white-space:nowrap; }
.official-shell .evidence-strip p{ font-size:14px; color:var(--color-text-secondary); }
.official-shell .evidence-strip strong{ font-weight:500; color:var(--color-text); }
.official-shell .evidence-strip .text-link{ font-size:14px; margin-left:auto; white-space:nowrap; }
.official-shell .visitor-grid{ display:grid; grid-template-columns:1fr 1fr; gap:96px; align-items:center; }
.official-shell .visitor-photo>img{ width:100%; height:560px; object-fit:cover; border-radius:0 var(--radius-image) 0 0; object-position:48% 50%; }
.official-shell .visitor-photo figcaption{ margin-top:16px; color:var(--color-text-secondary); }
.official-shell .visitor-copy .body-large{ margin-top:24px; }
.official-shell .task-links{ margin-top:32px; border-top:1px solid var(--color-border); }
.official-shell .task-links>a{ display:flex; justify-content:space-between; align-items:center; border-bottom:1px solid var(--color-border); padding:18px 0; font-size:22px; font-weight:600; gap:16px; }
.official-shell .task-links small{ display:block; color:var(--color-text-secondary); font-size:12px; font-weight:400; margin-bottom:4px; }
.official-shell .task-links>a>span:last-child{ font-size:22px; color:var(--color-primary); }
.official-shell .task-links>a:hover{ color:var(--color-primary); }
.official-shell .zones-section{ border-top:1px solid var(--color-border); }
.official-shell .zones-grid{ display:grid; grid-template-columns:minmax(0,4fr) minmax(0,8fr); gap:80px; }
.official-shell .section-heading>p:not(.eyebrow){ margin-top:24px; color:var(--color-text-secondary); }
.official-shell .section-heading .text-link{ margin-top:20px; }
.official-shell .zone-list{ display:grid; grid-template-columns:1fr 1fr; gap:0 40px; }
.official-shell .zone-item{ position:relative; isolation:isolate; overflow:hidden; border-top:1px solid var(--color-border); background:white; transition:background .35s var(--ease),box-shadow .35s var(--ease),transform .35s var(--ease); }
.official-shell .zone-item:before{ content:""; position:absolute; z-index:-1; inset:0; background-image:linear-gradient(115deg,rgba(181,31,36,.56),rgba(78,8,14,.7)),var(--zone-bg); background-position:center; background-size:cover; opacity:0; transform:scale(1.04); transition:opacity .35s var(--ease),transform .55s var(--ease); }
.official-shell .zone-item summary{ list-style:none; position:relative; display:flex; gap:16px; align-items:flex-start; padding:22px 20px; min-height:115px; cursor:pointer; }
.official-shell summary::-webkit-details-marker{ display:none; }
.official-shell .zone-index{ font-family:var(--font-number); font-size:12px; color:var(--color-text-secondary); margin-top:5px; }
.official-shell .zone-name{ flex:1; min-width:0; }
.official-shell .zone-name strong{ font-size:clamp(18px,1.45vw,22px); line-height:1.4; font-weight:600; display:block; }
.official-shell .zone-name small{ display:block; font-size:10px; letter-spacing:.1em; margin-top:8px; color:var(--color-text-secondary); }
.official-shell .zone-toggle{ font-size:22px; color:var(--color-primary); font-weight:400; }
.official-shell .zone-item[open] .zone-toggle{ transform:rotate(45deg); }
.official-shell .zone-item[open] summary{ min-height:0; padding-bottom:12px; }
.official-shell .zone-item>p{ margin:0; padding:0 20px 20px 50px; font-size:14px; color:var(--color-text-secondary); }
@media (hover:hover){.official-shell .zone-item:hover{ color:white; border-color:transparent; box-shadow:0 18px 38px rgba(95,17,20,.18); transform:translateY(-2px); }
.official-shell .zone-item:hover:before{ opacity:1; transform:scale(1); }
.official-shell .zone-item:hover .zone-index,.official-shell .zone-item:hover .zone-name small,.official-shell .zone-item:hover>p,.official-shell .zone-item:hover .zone-toggle{ color:rgba(255,255,255,.9); }
.official-shell .zone-item:hover .zone-name strong,.official-shell .zone-item:hover>p{ text-shadow:0 1px 12px rgba(40,0,0,.42); }}
.official-shell .zone-map{ margin-top:56px; }
.official-shell .zone-map .image-motion-frame{ display:block; overflow:hidden; border:1px solid var(--color-border); border-radius:var(--radius-image); background:#F3EEEE; }
.official-shell .zone-map img{ display:block; width:100%; height:auto; }
.official-shell .zone-map figcaption{ margin-top:12px; color:var(--color-text-secondary); font-size:12px; text-align:right; }
.official-shell .dark-section{ background:var(--color-secondary); color:white; }
.official-shell .dark-section .eyebrow{ color:rgba(255,255,255,.67); }
.official-shell .dark-section .section-top>p,.official-shell .dark-section .caption{ color:rgba(255,255,255,.7); }
.official-shell .dark-section .text-link{ color:white; }
.official-shell .activities-grid{ display:grid; grid-template-columns:5fr 7fr; gap:64px; align-items:start; }
.official-shell .forum-photo>img{ width:100%; height:440px; object-fit:cover; object-position:47% 50%; }
.official-shell .forum-photo figcaption{ color:rgba(255,255,255,.65); margin-top:16px; }
.official-shell .activity-item{ border-top:1px solid rgba(255,255,255,.22); }
.official-shell .activity-item:last-child{ border-bottom:1px solid rgba(255,255,255,.22); }
.official-shell .activity-item summary{ display:flex; gap:20px; cursor:pointer; list-style:none; padding:20px 0; align-items:flex-start; }
.official-shell .activity-item summary>span:first-child{ font-family:var(--font-number); font-size:12px; padding-top:5px; color:rgba(255,255,255,.65); }
.official-shell .activity-title{ flex:1; font-size:22px; font-weight:500; line-height:1.5; }
.official-shell .activity-title small{ display:block; font-size:11px; font-weight:400; line-height:1.5; color:rgba(255,255,255,.65); margin-top:6px; }
.official-shell .activity-item summary>span:last-child{ font-size:20px; }
.official-shell .activity-item[open] summary>span:last-child{ transform:rotate(45deg); }
.official-shell .activity-item>p{ color:rgba(255,255,255,.75); padding:0 32px 24px; font-size:14px; }
.official-shell .dark-section .section-foot{ border-top:1px solid rgba(255,255,255,.2); padding-top:24px; }
.official-shell .programme-heading{ max-width:1040px; }
.official-shell .programme-heading h2{ white-space:nowrap; }
.official-shell .programme-heading>p:not(.eyebrow){ max-width:920px; margin-top:24px; color:rgba(255,255,255,.72); font-size:18px; line-height:1.9; }
.official-shell .conference-programme{ display:grid; grid-template-columns:minmax(0,6.25fr) minmax(0,5.75fr); gap:56px; align-items:start; margin-top:56px; }
.official-shell .programme-label{ display:flex; align-items:center; gap:12px; margin-bottom:18px; color:rgba(255,255,255,.62); font:500 11px/1.4 var(--font-number); letter-spacing:.12em; }
.official-shell .programme-label span{ color:#F3CB82; }
.official-shell .opening-conference figure{ overflow:hidden; border-radius:8px; }
.official-shell .opening-conference img{ display:block; width:100%; height:auto; }
.official-shell .opening-conference h3{ margin-bottom:20px; font-size:28px; line-height:1.4; }
.official-shell .summit-directory{ border-top:1px solid rgba(255,255,255,.24); }
.official-shell .summit-directory>.programme-label{ margin:0; padding:16px 0 18px; border-bottom:1px solid rgba(255,255,255,.24); }
.official-shell .summit-directory-title{ padding:22px 0; border-bottom:1px solid rgba(255,255,255,.24); font-size:28px; font-weight:600; }
.official-shell .summit-table-head{ display:grid; grid-template-columns:112px 1fr; gap:20px; padding:12px 0; border-bottom:1px solid rgba(255,255,255,.24); color:rgba(255,255,255,.54); font-size:11px; letter-spacing:.08em; }
.official-shell .summit-group{ display:grid; grid-template-columns:112px 1fr; gap:20px; border-bottom:1px solid rgba(255,255,255,.24); }
.official-shell .summit-group>h3{ display:flex; align-items:center; align-self:stretch; padding:18px 0; font-size:17px; font-weight:500; color:#F3CB82; }
.official-shell .summit-group li{ display:grid; grid-template-columns:30px 1fr; gap:12px; padding:12px 0; border-top:1px solid rgba(255,255,255,.14); }
.official-shell .summit-group li:first-child{ border-top:0; }
.official-shell .summit-group li>span{ padding-top:3px; color:rgba(255,255,255,.48); font:400 11px/1.5 var(--font-number); }
.official-shell .summit-group li>strong{ font-size:15px; font-weight:500; line-height:1.55; }
.official-shell .conference-programme+.section-foot{ margin-top:42px; }
.official-shell .directory-section{ padding-block:64px; border-bottom:1px solid var(--color-border); }
.official-shell .directory-grid{ display:grid; grid-template-columns:1fr 1fr; gap:112px; align-items:center; }
.official-shell .directory-section h2{ font-size:32px; }
.official-shell .status-label{ display:inline-flex; align-items:center; gap:8px; font-size:13px; color:var(--color-pending); }
.official-shell .status-label>span{ width:6px; height:6px; border-radius:50%; background:currentColor; }
.official-shell .directory-note>p{ color:var(--color-text-secondary); margin-top:16px; }
.official-shell .directory-note .inline-actions{ margin-top:16px; }
.official-shell .agenda-section{ padding-bottom:80px; }
.official-shell .agenda-grid{ display:grid; grid-template-columns:8fr 4fr; gap:64px; }
.official-shell .date-tabs{ display:flex; border-bottom:1px solid var(--color-border); gap:32px; }
.official-shell .date-tabs button{ background:none; padding:12px 8px 20px; border-bottom:2px solid transparent; text-align:left; color:var(--color-text-secondary); flex:1; }
.official-shell .date-tabs button strong{ display:block; font:500 26px/1.2 var(--font-number); color:inherit; }
.official-shell .date-tabs button small{ font-size:12px; display:block; margin-top:8px; }
.official-shell .date-tabs [aria-selected=true]{ color:var(--color-primary); border-color:var(--color-primary); }
.official-shell .schedule-panel{ padding:36px 0 8px; }
.official-shell .schedule-panel>p{ font-size:18px; font-weight:500; margin-bottom:12px; }
.official-shell .schedule-fields{ display:grid; grid-template-columns:repeat(3,1fr); gap:16px; padding:20px 0; border-top:1px solid var(--color-border); margin-top:24px; }
.official-shell .schedule-fields span{ display:block; font-size:12px; color:var(--color-text-secondary); margin-bottom:4px; }
.official-shell .schedule-fields strong{ font-size:14px; font-weight:400; }
.official-shell .speaker-note{ border-left:1px solid var(--color-border); padding-left:40px; }
.official-shell .editorial-number{ font-family:Georgia,serif; font-size:80px; color:var(--color-accent); font-style:italic; line-height:1; }
.official-shell .speaker-note h3{ margin-top:20px; font-size:22px; }
.official-shell .speaker-note p{ color:var(--color-text-secondary); font-size:14px; margin-top:12px; }
.official-shell .speaker-note .text-link{ margin-top:16px; font-size:14px; }
.official-shell .history-section{ background:white; }
.official-shell .history-tabs{ display:flex; position:relative; border-bottom:1px solid var(--color-border); margin-bottom:48px; }
.official-shell .history-tabs button{ flex:1; min-width:0; background:transparent; font:400 18px/1.4 var(--font-number); color:var(--color-text-secondary); padding:20px 0; border-bottom:2px solid transparent; }
.official-shell .history-tabs [aria-selected=true]{ color:var(--color-primary); border-color:transparent; font-weight:600; }
.official-shell .history-tabs-indicator{ position:absolute; bottom:0; left:0; height:2px; width:0; background:var(--color-primary); transition:transform .4s var(--ease, ease), width .4s var(--ease, ease); }
.official-shell .history-select-label{ display:none; }
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@keyframes historySlideIn{ from { opacity:0; transform:translateX(var(--slide-from, 40px)); } to { opacity:1; transform:translateX(0); } }
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@media (max-width:768px){.official-shell .to-top{ right:16px; bottom:calc(78px + env(safe-area-inset-bottom)); }}
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.official-shell .intro-gallery__thumb.is-active{ opacity:1; border-color:var(--color-primary); }
@media (min-width:1600px){.official-shell{ --container:1440px; --gutter:64px; --section-space:112px; }
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@media (max-width:1199px){.official-shell{ --header-height:72px; --section-space:72px; }
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@media (min-width:768px) and (max-width:1023px){.official-shell{ --gutter:32px; --section-space:64px; }
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/* Compact QR retained inside official footer contact column. */
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