*,*::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;
  --gold:#e0a72b;
  --silver:#9aa3b0;
  --bronze:#c07d4a;
  --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)}

.stat-bar{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:.5rem 1.1rem;
  margin:0 0 1.4rem;
  padding:.8rem 1.1rem;
  border-radius:14px;
  background:rgba(108,92,231,.06);
  border:1px solid rgba(108,92,231,.14);
  font-size:.82rem;
  color:var(--ink-2);
}
.stat-bar .stat-item{display:inline-flex;align-items:center;gap:.4rem}
.stat-bar .stat-num{
  font-weight:800;
  font-size:.95rem;
  background:linear-gradient(140deg,var(--brand),var(--brand-light));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  letter-spacing:-.01em;
}
.stat-bar .stat-sep{color:var(--line-strong)}

/* ============ 用户网格 ============ */
.users-section{padding:1rem 0 2.75rem}

.user-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:.9rem;
}
@media(min-width:640px){.user-grid{grid-template-columns:repeat(3,1fr);gap:1rem}}
@media(min-width:1000px){.user-grid{grid-template-columns:repeat(4,1fr);gap:1.25rem}}
@media(min-width:1400px){.user-grid{grid-template-columns:repeat(5,1fr)}}

.user-card{
  position:relative;
  display:flex;align-items:flex-start;gap:.9rem;
  padding:1.1rem 1.15rem;
  border-radius:var(--r-md);
  background:rgba(255,255,255,.85);
  border:1px solid rgba(255,255,255,.95);
  box-shadow:var(--sh-1);
  transition:transform .28s var(--ease),box-shadow .28s,border-color .2s;
  text-decoration:none;color:inherit;
  min-width:0;
}
.user-card:hover{
  transform:translateY(-3px);
  box-shadow:var(--sh-2);
  border-color:rgba(108,92,231,.28);
}
.user-card:focus-visible{
  outline:2px solid var(--brand);
  outline-offset:3px;
}

.user-rank{
  position:absolute;
  top:.55rem;right:.7rem;
  font-size:.68rem;
  font-weight:800;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  color:var(--muted);
  letter-spacing:-.02em;
  line-height:1;
  padding:.18rem .38rem;
  border-radius:6px;
  background:rgba(24,21,40,.045);
}
.user-rank.rank-1{
  color:#fff;
  background:linear-gradient(140deg,var(--gold),#f5c14e);
  box-shadow:0 4px 10px -5px rgba(224,167,43,.9);
}
.user-rank.rank-2{
  color:#fff;
  background:linear-gradient(140deg,var(--silver),#b8c0cc);
  box-shadow:0 4px 10px -5px rgba(154,163,176,.9);
}
.user-rank.rank-3{
  color:#fff;
  background:linear-gradient(140deg,var(--bronze),#d89a68);
  box-shadow:0 4px 10px -5px rgba(192,125,74,.9);
}

.user-avatar{
  width:58px;height:58px;flex:none;
  border-radius:10px;
  overflow:hidden;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--brand),var(--brand-light));
  box-shadow:0 8px 18px -8px rgba(108,92,231,.85);
  user-select:none;
  color:#fff;
  font-size:1.4rem;
  font-weight:800;
}
.user-avatar img{
  width:100%;height:100%;
  object-fit:cover;display:block;
}

.user-info{min-width:0;flex:1;line-height:1.4;padding-right:1.5rem}

.user-name-row{
  display:flex;align-items:center;gap:.4rem;
  flex-wrap:wrap;min-width:0;
}
.user-name{
  font-size:.92rem;font-weight:680;
  color:var(--ink);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
  max-width:100%;
}
.user-level{
  display:inline-block;flex:none;
  font-size:.66rem;font-weight:700;
  padding:.1rem .45rem;border-radius:6px;
  letter-spacing:.02em;
  background:linear-gradient(140deg,var(--brand),var(--brand-light));
  color:#fff;
}
.user-level.lv-high{
  background:linear-gradient(140deg,var(--accent),#f5c14e);
  box-shadow:0 4px 10px -6px rgba(240,160,75,.95);
}
.user-level.lv-top{
  background:linear-gradient(140deg,var(--gold),#f5c14e);
  box-shadow:0 4px 10px -6px rgba(224,167,43,.95);
}

.user-count{
  display:inline-block;
  font-size:.68rem;font-weight:600;
  padding:.1rem .5rem;border-radius:6px;
  background:rgba(34,197,94,.12);
  color:#15803d;
  margin-top:.35rem;
}
.user-count.zero{
  background:rgba(139,133,156,.14);
  color:var(--muted);
}

.user-time{
  display:block;
  font-size:.68rem;color:var(--muted);
  margin-top:.3rem;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  letter-spacing:-.01em;
  line-height:1.45;
  word-break:break-all;
}

.user-empty{
  grid-column:1/-1;
  padding:3.5rem 1.5rem;
  text-align:center;color:var(--muted);
  background:rgba(255,255,255,.5);
  border:1.5px dashed var(--line-strong);
  border-radius:var(--r-lg);
}
.user-empty .si{font-size:2.8rem;display:block;margin-bottom:.75rem;opacity:.55}
.user-empty strong{color:var(--ink-2);font-weight:650;display:block;margin-bottom:.35rem;font-size:1rem}
.user-empty a{color:var(--brand-deep);text-decoration:underline;text-underline-offset:2px}

.user-card.skeleton{pointer-events:none}
.user-card.skeleton .user-avatar,
.user-card.skeleton .user-name,
.user-card.skeleton .user-level,
.user-card.skeleton .user-count,
.user-card.skeleton .user-time,
.user-card.skeleton .user-rank{
  background:linear-gradient(90deg,#ece6f5 0%,#ded4ee 50%,#ece6f5 100%) !important;
  background-size:200% 100%;
  animation:shimmerX 1.6s ease-in-out infinite;
  color:transparent;
  border-color:transparent;
  box-shadow:none;
}
@keyframes shimmerX{
  0%{background-position:200% 0}
  100%{background-position:-200% 0}
}

/* ============================================================
   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:2.5rem;
}
@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（自适应宽度）
   默认隐藏；只有 JS 判定空间足够时才加 .is-visible
   ============================================================ */
.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}

  .users-section{padding:.75rem 0 2rem}
  .block-head h2{font-size:1.15rem}
  .block-head-desc{font-size:.8rem}
  .back-link{font-size:.8rem}
  .stat-bar{font-size:.78rem;padding:.7rem .9rem;gap:.4rem .9rem}

  .user-avatar{width:52px;height:52px;font-size:1.25rem}
  .user-name{font-size:.88rem}
  .user-time{font-size:.66rem}
  .user-info{padding-right:1.4rem}

  .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: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}
  .user-card{padding:.85rem .9rem;gap:.7rem}
  .user-avatar{width:46px;height:46px;border-radius:10px;font-size:1.1rem}
  .user-name{font-size:.84rem}
  .user-level{font-size:.62rem;padding:.08rem .38rem}
  .user-count{font-size:.62rem;padding:.08rem .4rem}
  .user-time{font-size:.62rem}
  .user-rank{font-size:.62rem;padding:.15rem .32rem;top:.45rem;right:.6rem}
  .user-info{padding-right:1.3rem}

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