*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html,body{min-height:100%;width:100%;background:#1a1a1a;color:#fff;font-family:Arial,Helvetica,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}
body{overflow-y:auto;-webkit-overflow-scrolling:touch}
button,input{font:inherit}

.v-topbar{position:fixed;inset:0 0 auto;height:54px;z-index:100;display:flex;align-items:center;gap:10px;padding:0 14px;background:rgba(20,20,20,.96);border-bottom:1px solid rgba(255,255,255,.08);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.v-back,.v-dl{display:inline-flex;align-items:center;gap:6px;padding:8px 14px;border-radius:8px;color:#fff;text-decoration:none;font-size:13px;font-weight:700;white-space:nowrap}
.v-back{background:rgba(255,255,255,.1)}
.v-back:hover{background:rgba(255,255,255,.18)}
.v-dl{background:#ff6b35}
.v-dl:hover{background:#ff7f50}
.v-dl-icon{font-size:16px;line-height:1}
.v-title{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:14px;font-weight:700}
.v-page-info{display:flex;align-items:center;gap:6px;color:rgba(255,255,255,.72);font-size:13px;white-space:nowrap}
.v-page-info input{width:48px;padding:4px 6px;border:1px solid rgba(255,255,255,.14);border-radius:5px;background:rgba(255,255,255,.08);color:#fff;text-align:center}
.v-page-info input::-webkit-outer-spin-button,.v-page-info input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}
.v-page-info input[type=number]{-moz-appearance:textfield}

.v-content{max-width:1400px;margin:0 auto;padding:74px 16px 96px}
.v-page{position:relative;overflow:hidden;margin-bottom:14px;border-radius:6px;background:#fff;box-shadow:0 4px 20px rgba(0,0,0,.4);cursor:zoom-in;content-visibility:auto;contain-intrinsic-size:auto 900px}
.v-page img{display:block;width:100%;height:100%;object-fit:contain;background:#fff;image-rendering:auto;user-select:none;-webkit-user-drag:none;opacity:0;transition:opacity .12s linear}
.v-page img.loaded{opacity:1}
.v-placeholder{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:linear-gradient(90deg,#eee 0%,#fafafa 50%,#eee 100%);background-size:200% 100%;color:#777;font-size:13px;animation:v-shimmer 1.5s infinite}
.v-page.ready .v-placeholder,.v-page.failed .v-placeholder{display:none}
.v-pnum{position:absolute;right:8px;bottom:6px;padding:2px 8px;border-radius:10px;background:rgba(0,0,0,.55);font-size:11px;font-weight:700;pointer-events:none}
.v-zoom-hint{position:absolute;right:8px;top:8px;padding:3px 8px;border-radius:8px;background:rgba(0,0,0,.5);font-size:10px;opacity:.72;pointer-events:none}
.v-page-error{display:none;position:absolute;inset:0;align-items:center;justify-content:center;flex-direction:column;gap:10px;padding:24px;background:#fff;color:#333;text-align:center}
.v-page.failed .v-page-error{display:flex}
.v-retry,.v-open-pdf{padding:8px 12px;border:0;border-radius:7px;background:#ff6b35;color:#fff;text-decoration:none;font-weight:700;cursor:pointer}
@keyframes v-shimmer{0%{background-position:200% 0}100%{background-position:-200% 0}}

.v-bottomnav{position:fixed;inset:auto 0 0;z-index:100;display:flex;align-items:center;justify-content:center;gap:8px;padding:10px;padding-bottom:calc(10px + env(safe-area-inset-bottom));background:rgba(20,20,20,.96);border-top:1px solid rgba(255,255,255,.08);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.v-navbtn{padding:8px 16px;border:0;border-radius:8px;background:rgba(255,255,255,.1);color:#fff;font-size:13px;font-weight:700;cursor:pointer}
.v-navbtn:hover:not(:disabled){background:rgba(255,255,255,.18)}
.v-navbtn:disabled{opacity:.35;cursor:not-allowed}

.v-lightbox{position:fixed;inset:0;z-index:300;display:none;grid-template-rows:52px minmax(0,1fr) 52px;background:#000}
.v-lightbox.active{display:grid}
.v-lb-top{display:flex;align-items:center;gap:8px;padding:0 10px;background:#111}
.v-lb-close,.v-lb-zoom{display:grid;place-items:center;width:36px;height:36px;border:0;border-radius:50%;background:rgba(255,255,255,.15);color:#fff;font-size:18px;cursor:pointer}
.v-lb-info{flex:1;text-align:center;color:rgba(255,255,255,.82);font-size:13px}
.v-lb-pdf{padding:8px 10px;border-radius:7px;background:#ff6b35;color:#fff;text-decoration:none;font-size:12px;font-weight:700;white-space:nowrap}
.v-lb-stage{position:relative;overflow:auto;display:grid;place-items:center;overscroll-behavior:contain;-webkit-overflow-scrolling:touch;touch-action:pan-x pan-y pinch-zoom}
.v-lb-stage img{display:block;width:auto;height:auto;max-width:none;background:#fff;image-rendering:auto;box-shadow:0 0 24px rgba(0,0,0,.45);transform-origin:center center}
.v-lb-bottom{display:flex;align-items:center;justify-content:center;gap:8px;padding-bottom:env(safe-area-inset-bottom);background:#111}
.v-lb-nav{padding:8px 18px;border:0;border-radius:8px;background:rgba(255,255,255,.15);color:#fff;font-size:13px;font-weight:700;cursor:pointer}
.v-lb-nav:disabled{opacity:.3}
.v-zoom-label{min-width:44px;text-align:center;color:rgba(255,255,255,.75);font-size:12px}

.v-loading,.v-err{position:fixed;inset:0;z-index:200;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:20px;background:#1a1a1a;text-align:center}
.v-spinner{width:40px;height:40px;margin-bottom:14px;border:3px solid rgba(255,255,255,.1);border-top-color:#ff6b35;border-radius:50%;animation:v-spin .8s linear infinite}
@keyframes v-spin{to{transform:rotate(360deg)}}
.v-loading p,.v-err p{max-width:420px;color:rgba(255,255,255,.7);font-size:14px;line-height:1.5}
.v-loading .v-progress{margin-top:9px;color:rgba(255,255,255,.5);font-size:12px}
.v-err{display:none}
.v-err h2{margin-bottom:8px;color:#ff6b35;font-size:18px}
.v-err p{margin-bottom:16px}
.v-err a{padding:10px 18px;border-radius:8px;background:#ff6b35;color:#fff;text-decoration:none;font-size:14px;font-weight:700}

@media(max-width:640px){
  .v-topbar{height:52px;padding:0 10px;gap:6px}
  .v-title{font-size:13px}
  .v-page-info{font-size:12px}
  .v-page-info input{width:40px;padding:3px 4px}
  .v-back,.v-dl{padding:7px 10px;font-size:12px}
  .v-content{padding:66px 10px 88px}
  .v-page{margin-bottom:10px;border-radius:4px}
  .v-zoom-hint{display:none}
  .v-lb-pdf span{display:none}
}
@media(max-width:420px){.v-back span,.v-dl-label{display:none}}