*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

:root{
  --bg:#f5f3f7;
  --surface:rgba(255,255,255,.72);
  --ink:#181528;
  --ink-2:#413a55;
  --muted:#8b859c;
  --line:rgba(24,21,40,.08);
  --line-strong:rgba(24,21,40,.14);
  --brand:#6c5ce7;
  --brand-deep:#4c3fd6;
  --brand-light:#8b7bff;
  --brand-soft:rgba(108,92,231,.10);
  --accent:#f0a04b;
  --accent-deep:#b45309;
  --ok:#22c55e;
  --r-md:16px;
  --r-lg:22px;
  --sh-1:0 1px 2px rgba(24,21,40,.04),0 4px 12px -6px rgba(24,21,40,.08);
  --sh-2:0 14px 34px -16px rgba(24,21,40,.22);
  --sh-3:0 40px 80px -32px rgba(24,21,40,.30);
  --ease:cubic-bezier(.22,1,.36,1);
}

html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}

body{
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;
  color:var(--ink);
  line-height:1.65;
  min-height:100vh;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  background:
    radial-gradient(1200px 620px at 8% -12%, rgba(108,92,231,.16), transparent 62%),
    radial-gradient(900px 520px at 96% -4%, rgba(240,160,75,.14), transparent 58%),
    radial-gradient(900px 700px at 50% 112%, rgba(108,92,231,.10), transparent 62%),
    var(--bg);
  background-attachment:fixed;
}

img,video{max-width:100%;display:block}
button,input,select,textarea{font:inherit;color:inherit}
a{color:inherit;text-decoration:none}
::selection{background:rgba(108,92,231,.22)}

.wrap{width:min(1200px,calc(100% - 2.5rem));margin-inline:auto}

/* 语言显示控制 */
body.lang-zh [data-en]:not(option) { display: none !important; }
body.lang-en [data-zh]:not(option) { display: none !important; }

.lang-switch{
  display:inline-flex;align-items:center;justify-content:center;gap:.4rem;
  height:36px;padding:0 .85rem;border-radius:10px;
  background:rgba(255,255,255,.78);border:1px solid var(--line-strong);
  color:var(--ink-2);cursor:pointer;font-weight:700;font-size:.76rem;
  letter-spacing:.02em;white-space:nowrap;
  transition:all .22s var(--ease);-webkit-tap-highlight-color:transparent;
}
.lang-switch:hover{
  background:#fff;border-color:rgba(108,92,231,.45);color:var(--brand-deep);
  transform:translateY(-1px);box-shadow:0 8px 18px -10px rgba(108,92,231,.75);
}
.lang-switch:hover .ico{transform:rotate(20deg)}
.lang-switch:active{transform:scale(.97)}
.lang-switch:focus-visible{outline:2px solid var(--brand);outline-offset:3px}
.lang-switch .ico{
  width:15px;height:15px;flex:none;color:var(--brand-deep);
  transition:transform .35s var(--ease);
}
.lang-switch .lbl{
  line-height:1;
  background:linear-gradient(140deg,var(--brand),#b06ab3 70%,var(--accent));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  font-weight:800;font-size:.78rem;
}

/* 顶栏 */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(247,245,250,.72);
  backdrop-filter:blur(18px) saturate(180%);
  -webkit-backdrop-filter:blur(18px) saturate(180%);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.8rem 0}

.logo{display:flex;align-items:center;gap:.65rem}
.logo-mark{
  width:38px;height:38px;border-radius:12px;flex:none;
  display:grid;place-items:center;color:#fff;
  background:linear-gradient(140deg,var(--brand),var(--brand-light));
  box-shadow:0 8px 18px -8px rgba(108,92,231,.9);
}
.logo-mark svg{width:21px;height:21px}
.logo-text{display:flex;flex-direction:column;line-height:1.1}
.logo-text b{font-size:1rem;font-weight:650;letter-spacing:-.01em}
.logo-text small{font-size:.6rem;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);font-weight:600}

.nav-actions{display:flex;align-items:center;gap:.7rem}
.nav-links{display:flex;align-items:center;gap:.2rem}
.nav-links a{
  padding:.5rem .85rem;border-radius:10px;font-size:.87rem;color:var(--ink-2);
  transition:background .2s,color .2s;
}
.nav-links a:hover{background:var(--brand-soft);color:var(--brand-deep)}
.nav-links a.active{background:var(--brand-soft);color:var(--brand-deep);font-weight:550}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.45rem;
  padding:.62rem 1.2rem;border-radius:12px;border:1px solid transparent;
  font-size:.88rem;font-weight:550;cursor:pointer;white-space:nowrap;
  transition:transform .18s var(--ease),box-shadow .25s,background .2s,border-color .2s,color .2s;
  -webkit-tap-highlight-color:transparent;
}
.btn:active:not(:disabled){transform:scale(.97)}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn-sm{padding:.48rem .95rem;font-size:.82rem;border-radius:10px}
.btn-primary{
  background:linear-gradient(140deg,var(--brand),var(--brand-light));
  color:#fff;box-shadow:0 10px 24px -12px rgba(108,92,231,.95);
}
.btn-primary:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 16px 32px -14px rgba(108,92,231,1)}

/* 页头 */
.page-head{padding:3.5rem 0 2rem;text-align:center}

.page-head-tag{
  display:inline-flex;align-items:center;gap:.5rem;
  font-size:.82rem;color:var(--muted);letter-spacing:.02em;margin-bottom:1rem;
}
.page-head-tag .dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--ok);
  box-shadow:0 0 0 0 rgba(34,197,94,.6);
  animation:pulse 2.2s infinite;flex:none;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(34,197,94,.55)}
  70%{box-shadow:0 0 0 9px rgba(34,197,94,0)}
  100%{box-shadow:0 0 0 0 rgba(34,197,94,0)}
}

.page-head h1{
  font-size:clamp(2rem,5.2vw,3rem);
  line-height:1.15;letter-spacing:-.035em;font-weight:750;
}
.page-head h1 em{
  font-style:normal;
  background:linear-gradient(100deg,var(--brand),#b06ab3 65%,var(--accent));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.page-head-sub{
  margin:.85rem auto 0;max-width:34rem;color:var(--muted);
  font-size:.95rem;line-height:1.75;
}

/* 区块标题 */
.block-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:1rem;flex-wrap:wrap;margin-bottom:1.1rem;
}
.block-head-main{min-width:0}
.block-head h2{
  font-size:1.35rem;font-weight:720;letter-spacing:-.02em;
  display:flex;align-items:center;gap:.55rem;
}
.block-head h2::before{
  content:"";width:4px;height:20px;border-radius:2px;
  background:linear-gradient(180deg,var(--brand),var(--brand-light));flex:none;
}
.block-head-desc{color:var(--muted);font-size:.85rem;margin-top:.15rem;line-height:1.65;}

.back-link{
  display:inline-flex;align-items:center;gap:.32rem;
  font-size:.85rem;font-weight:600;color:var(--brand-deep);
  white-space:nowrap;transition:color .2s var(--ease);
  -webkit-tap-highlight-color:transparent;flex:none;margin-left:auto;
}
.back-link:hover{color:var(--accent-deep);text-decoration:underline;text-underline-offset:4px}
.back-link:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:4px}
.back-link svg{width:12px;height:12px;flex:none;transition:transform .25s var(--ease)}
.back-link:hover svg{transform:translateX(-3px)}

/* 素材区 */
.list-section{padding:1rem 0 2.75rem}

.list-grid{
  display:grid;grid-template-columns:1fr;gap:1.5rem;
}
@media(min-width:640px){
  .list-grid{grid-template-columns:repeat(2,1fr);gap:1.35rem}
}
@media(min-width:1080px){
  .list-grid{grid-template-columns:repeat(4,1fr);gap:1.25rem}
}

/* 单张图片卡 */
.media-card{
  background:var(--surface);
  backdrop-filter:blur(20px) saturate(165%);
  -webkit-backdrop-filter:blur(20px) saturate(165%);
  border:1px solid rgba(255,255,255,.85);
  border-radius:var(--r-lg);
  padding:1.15rem;
  box-shadow:var(--sh-2);
  display:flex;flex-direction:column;gap:.9rem;
  transition:box-shadow .35s var(--ease),transform .35s var(--ease);
  min-width:0;
}
.media-card:hover{box-shadow:var(--sh-3);transform:translateY(-2px);}

.card-head{display:flex;align-items:center;gap:.6rem}
.card-icon{
  width:34px;height:34px;flex:none;border-radius:11px;
  display:grid;place-items:center;font-size:1.05rem;
  background:linear-gradient(140deg,rgba(108,92,231,.16),rgba(240,160,75,.18));
  transition:transform .3s var(--ease);
}
.media-card:hover .card-icon{transform:scale(1.06)}
.card-head h2{
  font-size:1rem;font-weight:680;letter-spacing:-.01em;
  white-space:nowrap;min-width:0;
}
.card-key{
  margin-left:auto;font-size:.68rem;font-weight:700;
  padding:.2rem .55rem;border-radius:7px;
  background:rgba(108,92,231,.08);
  border:1px solid rgba(108,92,231,.18);
  color:var(--brand-deep);font-family:inherit;line-height:1.4;flex:none;
}

.frame{
  position:relative;border-radius:var(--r-md);overflow:hidden;
  background:linear-gradient(135deg,#ece6f5,#ded4ee);
  border:1px solid rgba(255,255,255,.9);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.9),0 12px 26px -20px rgba(24,21,40,.55);
  cursor:pointer;
  transition:box-shadow .3s var(--ease),transform .3s var(--ease);
  aspect-ratio:16/10;
}
.frame:hover{
  box-shadow:inset 0 1px 0 rgba(255,255,255,.9),0 20px 36px -22px rgba(108,92,231,.85);
}
.frame:active{transform:scale(.995)}
.frame:focus-visible{outline:2px solid var(--brand);outline-offset:3px}

.frame img{
  width:100%;height:100%;object-fit:cover;
  background:linear-gradient(130deg,#ece6f5 30%,#ded4ee 55%,#ece6f5 80%);
  background-size:200% 200%;
  animation:shimmer 1.8s ease-in-out infinite;
  transition:opacity .3s ease;
}
@keyframes shimmer{
  0%{background-position:0% 0%}
  100%{background-position:100% 100%}
}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.frame img.fade-in{animation:fadeIn .35s ease}

.frame-loading{
  position:absolute;inset:0;z-index:2;
  display:none;place-items:center;
  background:rgba(24,21,40,.35);
  backdrop-filter:blur(2px);
}
.frame.loading .frame-loading{display:grid}
.spinner{
  width:32px;height:32px;border-radius:50%;
  border:3px solid rgba(255,255,255,.25);
  border-top-color:#fff;
  animation:spin .8s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

.card-foot{display:flex;align-items:center;justify-content:space-between;gap:1rem;}
.hint{font-size:.72rem;color:var(--muted);min-width:0}
.btn-refresh{
  background:rgba(255,255,255,.78);
  border:1px solid var(--line-strong);
  border-radius:11px;padding:.5rem 1.05rem;
  font-size:.83rem;font-weight:550;color:var(--ink-2);
  cursor:pointer;display:inline-flex;align-items:center;gap:.4rem;
  transition:all .2s var(--ease);
  -webkit-tap-highlight-color:transparent;flex:none;
}
.btn-refresh:hover:not(:disabled){
  background:#fff;border-color:rgba(108,92,231,.35);
  color:var(--brand-deep);transform:translateY(-1px);
  box-shadow:0 10px 20px -14px rgba(108,92,231,.9);
}
.btn-refresh:active:not(:disabled){transform:scale(.96)}
.btn-refresh:disabled{opacity:.5;cursor:not-allowed}
.ico-spin{width:14px;height:14px;flex:none;transition:transform .45s var(--ease)}
.btn-refresh:hover:not(:disabled) .ico-spin{transform:rotate(180deg)}

/* 提示条 */
.gallery-tip{
  margin-top:1.5rem;
  padding:1rem 1.25rem;
  border-radius:14px;
  background:rgba(108,92,231,.06);
  border:1px solid rgba(108,92,231,.14);
  text-align:center;
  font-size:.82rem;color:var(--ink-2);line-height:1.8;
}
.gallery-tip a{
  color:var(--brand-deep);text-decoration:underline;text-underline-offset:2px;
}
.gallery-tip a:hover{color:var(--accent-deep)}

/* 顶部通栏广告 */
.ad-top{
  margin:1.5rem 0 0;
  display:grid;grid-template-columns:1fr;gap:1rem;
}
.ad-top img{display:block;width:100%;height:auto;border-radius:0;border:none;box-shadow:none;}
.ad-top a{display:block;}

/* 底部广告位 */
.ad-row{
  display:grid;grid-template-columns:1fr;gap:1.25rem;margin-top:1.5rem;
}
@media(min-width:1080px){
  .ad-row{grid-template-columns:repeat(2,1fr);gap:1.5rem}
}
.ad-row img{display:block;width:100%;height:auto;border-radius:0;border:none;box-shadow:none;}
.ad-row a{display:block;}

/* 左右浮动广告 */
.ad-float{
  display:none;position:fixed;top:50%;transform:translateY(-50%);
  width:clamp(120px, calc((100vw - 1200px) / 2 - 30px), 180px);
  z-index:50;border-radius:14px;overflow:hidden;
  background:rgba(255,255,255,.7);
  box-shadow:0 16px 40px -16px rgba(24,21,40,.35),0 0 0 1px rgba(255,255,255,.6) inset;
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  transition:transform .3s var(--ease), box-shadow .3s var(--ease);
}
.ad-float.is-visible{display:block;}
.ad-float:hover{
  transform:translateY(-50%) scale(1.03);
  box-shadow:0 22px 50px -18px rgba(108,92,231,.5),0 0 0 1px rgba(255,255,255,.7) inset;
}
.ad-float img{display:block;width:100%;height:auto;border-radius:14px;}
.ad-float a{display:block;}
.ad-float-left{left:15px;}
.ad-float-right{right:15px;}

/* 页脚 */
.site-footer{
  margin-top:2rem;border-top:1px solid var(--line);
  padding:2.5rem 0 2.75rem;text-align:center;
}
.footer-brand{display:inline-flex;align-items:center;gap:.55rem;margin-bottom:1rem}
.footer-brand .logo-mark{width:30px;height:30px;border-radius:9px}
.footer-brand .logo-mark svg{width:17px;height:17px}
.footer-brand b{font-size:.92rem;font-weight:650}
.footer-note{font-size:.82rem;color:var(--muted);margin-bottom:1.1rem}
.footer-links{display:flex;flex-wrap:wrap;gap:.35rem 1.4rem;justify-content:center;margin-bottom:1.25rem}
.footer-links a{font-size:.82rem;color:var(--ink-2);transition:color .2s}
.footer-links a:hover{color:var(--brand-deep)}
.copyright{font-size:.75rem;color:#a49eb4}

/* Toast */
.toast{
  position:fixed;left:50%;bottom:2rem;z-index:300;
  transform:translate(-50%,140%);
  max-width:min(90vw,420px);
  padding:.8rem 1.3rem;border-radius:13px;
  background:var(--ink);color:#fff;
  font-size:.85rem;line-height:1.5;text-align:center;
  box-shadow:var(--sh-3);
  opacity:0;visibility:hidden;pointer-events:none;
  transition:transform .4s var(--ease), opacity .3s ease, visibility .3s;
}
.toast.show{
  transform:translate(-50%,0);
  opacity:1;visibility:visible;pointer-events:auto;
}

/* 响应式 */
@media(max-width:900px){.nav-links{display:none}}

@media(max-width:767px){
  .wrap{width:calc(100% - 1.75rem)}
  .page-head{padding:2.5rem 0 1.5rem}
  .page-head h1{font-size:1.75rem}
  .page-head-sub{font-size:.88rem;margin-top:.65rem}
  .page-head-tag{font-size:.76rem;margin-bottom:.75rem}

  .list-section{padding:.75rem 0 2rem}
  .block-head h2{font-size:1.15rem}
  .block-head-desc{font-size:.8rem}
  .back-link{font-size:.8rem}

  .media-card{padding:.95rem;border-radius:var(--r-md)}
  .card-foot .hint{display:none}
  .card-foot .btn-refresh{width:100%;justify-content:center}
  .frame{aspect-ratio:4/3}

  .gallery-tip{font-size:.78rem;padding:.9rem 1rem}

  .footer-links{gap:.3rem 1rem}

  .lang-switch{height:32px;padding:0 .7rem;gap:.3rem;border-radius:9px;}
  .lang-switch .ico{width:14px;height:14px}
  .lang-switch .lbl{font-size:.72rem}

  .ad-row{gap:1rem;margin-top:1.2rem}
  .ad-top{margin-top:1rem;gap:.75rem}
}

@media(max-width:380px){
  .wrap{width:calc(100% - 1.25rem)}
  .page-head h1{font-size:1.5rem}
  .media-card{padding:.85rem}
  .btn-refresh{padding:.48rem .9rem;font-size:.78rem}

  .lang-switch{height:30px;padding:0 .6rem;border-radius:8px;}
  .lang-switch .ico{width:13px;height:13px}
  .lang-switch .lbl{font-size:.68rem}
}

/* ============================================================
   灯箱 / 大图预览样式
   ============================================================ */
.wg-lb{
  position:fixed; inset:0; z-index:9999;
  display:flex; align-items:center; justify-content:center;
  background:rgba(6,8,15,.94);
  -webkit-backdrop-filter:blur(8px); backdrop-filter:blur(8px);
  opacity:0; visibility:hidden;
  transition:opacity .2s ease, visibility .2s ease;
  touch-action:none; overscroll-behavior:contain;
  -webkit-tap-highlight-color:transparent;
}
.wg-lb.open{ opacity:1; visibility:visible; }

.wg-lb-stage{
  position:absolute; inset:0;
  display:flex; align-items:center; justify-content:center;
  overflow:hidden; cursor:zoom-in;
}
.wg-lb-stage.grabbing{ cursor:grabbing; }

.wg-lb-img{
  max-width:96vw; max-height:96vh;
  display:block;
  transform-origin:center center;
  user-select:none; -webkit-user-drag:none;
  will-change:transform;
  opacity:0;
  transition:opacity .25s ease;
}
.wg-lb-img.fade-in{ opacity:1; }

.wg-lb-loading{
  position:absolute; inset:0; display:none;
  align-items:center; justify-content:center;
  background:rgba(0,0,0,.35); pointer-events:none;
}
.wg-lb-loading.show{ display:flex; }

.wg-lb-top{
  position:absolute; top:0; left:0; right:0;
  padding:calc(12px + env(safe-area-inset-top,0px)) 16px 14px;
  display:flex; align-items:center; justify-content:space-between; gap:12px;
  z-index:3; pointer-events:none;
  background:linear-gradient(to bottom, rgba(0,0,0,.55), transparent);
}
.wg-lb-title{
  color:#fff; font-size:14px; font-weight:600; letter-spacing:.02em;
  text-shadow:0 1px 4px rgba(0,0,0,.6);
  pointer-events:auto;
}
.wg-lb-close{
  pointer-events:auto;
  width:38px; height:38px; border-radius:50%;
  border:1px solid rgba(255,255,255,.16);
  background:rgba(18,20,32,.7); color:#fff; font-size:15px;
  cursor:pointer; display:inline-flex; align-items:center; justify-content:center;
  -webkit-backdrop-filter:blur(10px); backdrop-filter:blur(10px);
  transition:background .18s ease, transform .12s ease;
}
.wg-lb-close:hover{ background:rgba(255,255,255,.18); }
.wg-lb-close:active{ transform:scale(.92); }

.wg-lb-bar{
  position:absolute; left:50%;
  bottom:calc(16px + env(safe-area-inset-bottom, 0px));
  transform:translateX(-50%);
  display:flex; align-items:center; gap:4px;
  padding:7px 9px;
  border-radius:999px;
  background:rgba(18,20,32,.82);
  border:1px solid rgba(255,255,255,.12);
  box-shadow:0 10px 30px rgba(0,0,0,.45);
  -webkit-backdrop-filter:blur(12px); backdrop-filter:blur(12px);
  z-index:3; max-width:calc(100vw - 20px);
}
.wg-lb-btn{
  display:inline-flex; align-items:center; gap:6px;
  height:36px; padding:0 13px;
  border:0; border-radius:999px;
  background:transparent; color:#fff;
  font-size:13px; font-weight:600; line-height:1;
  cursor:pointer; white-space:nowrap;
  transition:background .18s ease, transform .12s ease;
}
.wg-lb-btn:hover{ background:rgba(255,255,255,.14); }
.wg-lb-btn:active{ transform:scale(.95); }
.wg-lb-btn svg{ width:15px; height:15px; flex:none; }
.wg-lb-btn-main{ background:#6c5ce7; }
.wg-lb-btn-main:hover{ background:#7d6ff0; }

/* 灯箱里的换一张按钮 —— 加载中禁用视觉 */
.wg-lb-btn:disabled{
  cursor: not-allowed;
  pointer-events: none;
  opacity: .55;
  filter: grayscale(.4);
}
.wg-lb-btn[data-loading="1"]{
  cursor: progress;
  background: rgba(108,92,231,.35);
  opacity: 1;
  filter: none;
}
.wg-lb-btn[data-loading="1"] svg{
  animation: wg-spin-strong .75s linear infinite;
}

body.wg-lb-lock{ overflow:hidden; }

@media (max-width:520px){
  .wg-lb-btn{ padding:0 10px; font-size:12px; gap:5px; }
  .wg-lb-btn svg{ width:14px; height:14px; }
  .wg-lb-bar{ gap:1px; padding:6px; }
  .wg-lb-img{ max-width:100vw; max-height:88vh; }
}

/* ============================================================
   换图交互反馈强化
   ============================================================ */

.media-card .frame{
  position: relative;
  overflow: hidden;
}

.media-card .frame-loading{
  position: absolute;
  inset: 0;
  display: flex !important;
  align-items: center;
  justify-content: center;
  background: rgba(8,10,18,.55);
  -webkit-backdrop-filter: blur(3px);
  backdrop-filter: blur(3px);
  opacity: 0;
  visibility: hidden;
  transition: opacity .2s ease, visibility .2s ease;
  z-index: 5;
  pointer-events: none;
}
.media-card.loading .frame .frame-loading,
.media-card .frame.loading .frame-loading,
.media-card .frame.is-loading .frame-loading{
  opacity: 1 !important;
  visibility: visible !important;
}

.media-card .frame-loading .spinner{
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 3px solid rgba(255,255,255,.22);
  border-top-color: #fff;
  border-right-color: rgba(255,255,255,.7);
  animation: wg-spin-strong .75s linear infinite;
  box-shadow: 0 0 28px rgba(108,92,231,.6);
}
@keyframes wg-spin-strong{ to{ transform: rotate(360deg); } }

.media-card .frame::after{
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  opacity: 0;
  z-index: 6;
}
.media-card.flash-ok .frame::after{
  box-shadow: inset 0 0 0 3px rgba(52,211,153,.95);
  animation: wg-flash .65s ease;
}
.media-card.flash-err .frame::after{
  box-shadow: inset 0 0 0 3px rgba(248,113,113,.95);
  animation: wg-flash .65s ease;
}
@keyframes wg-flash{
  0%   { opacity: 0; }
  25%  { opacity: 1; }
  100% { opacity: 0; }
}

/* ============================================================
   ★★★ 换图按钮：加载期间彻底禁用，禁止重复请求 ★★★
   ============================================================ */
.btn-refresh{
  position: relative;
  transition: transform .12s ease, background .18s ease, box-shadow .18s ease, color .18s ease, opacity .18s ease;
}
.btn-refresh:active{ transform: scale(.93); }

/* 通用禁用：变灰、变光标、彻底阻挡点击 */
.btn-refresh:disabled{
  cursor: not-allowed;
  pointer-events: none;   /* ★ 关键：即使 disabled 属性失效也阻挡点击 */
  opacity: .55;
  filter: grayscale(.55);
  background: rgba(148,163,184,.18);
  color: #94a3b8;
  box-shadow: inset 0 0 0 1px rgba(148,163,184,.35);
  transform: none;
}
.btn-refresh:disabled .ico-spin{
  animation: none;
  color: inherit;
}

/* 加载中禁用：变色 + 图标旋转，明确表示"正在处理" */
.btn-refresh[data-loading="1"]{
  cursor: progress;
  pointer-events: none;   /* ★ 关键：即使 disabled 属性失效也阻挡点击 */
  opacity: 1;
  filter: none;
  background: rgba(108,92,231,.16);
  color: #6c5ce7;
  box-shadow: inset 0 0 0 1px rgba(108,92,231,.42);
  transform: none;
}
.btn-refresh[data-loading="1"] .ico-spin{
  animation: wg-spin-strong .75s linear infinite;
  color: #6c5ce7;
}