*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Oxygen,Ubuntu,sans-serif;background:#f5f5f5;min-height:100vh;padding:20px}@media (prefers-color-scheme:dark){body{background:#0a0f1a}}.container{max-width:800px;margin:0 auto}header{margin-bottom:20px}.back-link{display:inline-block;color:#667eea;text-decoration:none;font-size:14px;margin-bottom:16px}.back-link:hover{text-decoration:underline}h1{font-size:32px;font-weight:700;color:#333;margin-bottom:8px}.description{color:#666;font-size:16px;line-height:1.5}.description code{background:#e8e8e8;padding:2px 6px;border-radius:4px;font-size:14px;color:#764ba2}@media (prefers-color-scheme:dark){h1{color:#f0f0f0}.description{color:#a0a8b8}.description code{background:#2a2f3d;color:#c9a0f0}}.stats{display:flex;gap:24px;flex-wrap:wrap;background:#fff;padding:12px 20px;border-radius:4px;margin-bottom:12px;font-size:14px;color:#555;box-shadow:0 1px 3px rgba(0,0,0,0.1)}@media (prefers-color-scheme:dark){.stats{background:#1a1f2e;color:#a0a8b8;box-shadow:0 1px 3px rgba(0,0,0,0.3)}}.controls{display:flex;gap:8px;margin-bottom:12px;flex-wrap:wrap}.control-btn{padding:8px 16px;border:none;border-radius:8px;background:#fff;color:#555;font-size:13px;font-weight:500;cursor:pointer;box-shadow:0 1px 3px rgba(0,0,0,0.1);transition:all 0.15s ease}.control-btn:hover{background:#667eea;color:white;box-shadow:0 2px 8px rgba(102,126,234,0.3)}.control-btn:active{transform:scale(0.97)}.control-btn--active{background:#667eea;color:white;box-shadow:0 2px 8px rgba(102,126,234,0.3)}@media (prefers-color-scheme:dark){.control-btn{background:#1a1f2e;color:#a0a8b8;box-shadow:0 1px 3px rgba(0,0,0,0.3)}.control-btn:hover{background:#667eea;color:white}.control-btn--active{background:#667eea;color:white}}#list-container{height:560px;background:var(--vlist-bg);border-radius:2px;box-shadow:0 2px 8px rgba(0,0,0,0.1);overflow:hidden}@media (prefers-color-scheme:dark){#list-container{box-shadow:0 2px 12px rgba(0,0,0,0.4)}}#list-container .vlist-item{padding:0;border-bottom:none}#list-container .vlist-item[data-id^="__group_header_"]{cursor:default}#list-container .vlist-item[data-id^="__group_header_"]:hover{background-color:var(--vlist-group-header-bg,#f3f4f6)}.group-header{display:flex;align-items:center;gap:12px;padding:0 16px;height:100%;background:var(--vlist-group-header-bg,#f3f4f6)}.group-header__letter{font-size:13px;font-weight:700;color:#667eea;text-transform:uppercase;letter-spacing:0.5px;min-width:20px;text-align:center;flex-shrink:0}.group-header__line{flex:1;height:1px;background:var(--vlist-border,#e5e7eb)}@media (prefers-color-scheme:dark){.group-header{background:var(--vlist-group-header-bg,#1e2433)}.group-header__letter{color:#8b9cf7}}.contact{display:flex;align-items:center;gap:12px;padding:10px 16px;height:100%}.contact__avatar{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:white;font-weight:600;font-size:13px;flex-shrink:0}.contact__info{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}.contact__name{font-weight:600;font-size:14px;color:var(--vlist-text,#111827);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.contact__detail{font-size:12px;color:var(--vlist-text-muted,#6b7280);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.contact__phone{font-size:12px;color:var(--vlist-text-muted,#6b7280);white-space:nowrap;flex-shrink:0}@media (max-width:600px){.contact__phone{display:none}}.group-distribution{background:#fff;border-radius:8px;padding:16px 20px;margin-top:12px;box-shadow:0 1px 3px rgba(0,0,0,0.1)}.dist-title{font-size:13px;font-weight:600;color:#444;margin-bottom:12px}.dist-grid{display:flex;gap:2px;align-items:flex-end;height:80px}.dist-col{flex:1;display:flex;flex-direction:column;align-items:center;gap:4px;min-width:0}.dist-bar-wrap{width:100%;height:60px;display:flex;align-items:flex-end}.dist-bar{width:100%;min-height:2px;background:linear-gradient(180deg,#667eea 0%,#764ba2 100%);border-radius:2px 2px 0 0;transition:height 0.3s ease}.dist-letter{font-size:10px;font-weight:600;color:#888;text-transform:uppercase}@media (prefers-color-scheme:dark){.group-distribution{background:#1a1f2e;box-shadow:0 1px 3px rgba(0,0,0,0.3)}.dist-title{color:#c0c8d8}.dist-letter{color:#6b7280}}.vlist-sticky-header{display:flex;align-items:center}.vlist-sticky-header .group-header{width:100%}footer{margin-top:20px;text-align:center;color:#6b6b6b;font-size:14px;line-height:1.6}footer code{background:#e8e8e8;padding:2px 6px;border-radius:4px;font-size:13px;color:#764ba2}@media (prefers-color-scheme:dark){footer{color:#8890a0}footer code{background:#2a2f3d;color:#c9a0f0}}