/* ============================================================
   Home · Minimalist Modern (Light) · Bento Grid
   顶部导航 + 不规则卡片拼贴
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:root{
  --bg:#fafafa;
  --text:#0f172a;
  --muted:#64748b;
  --accent:#0052ff;
  --accent-2:#4d7cff;
  --card:#ffffff;
  --line:#e2e8f0;
  --muted-bg:#f1f5f9;
  --shadow-sm:0 1px 3px rgba(0,0,0,.06);
  --shadow-md:0 4px 6px rgba(0,0,0,.07);
  --shadow-lg:0 10px 15px rgba(0,0,0,.08);
  --shadow-xl:0 20px 25px rgba(0,0,0,.1);
  --shadow-accent:0 4px 14px rgba(0,82,255,.25);
  --ease:cubic-bezier(.16,1,.3,1);
}

*{box-sizing:border-box}
body{
  margin:0;min-height:100vh;
  font-family:"Inter","Noto Sans SC","Segoe UI",sans-serif;
  color:var(--text);letter-spacing:-.011em;
  background:radial-gradient(circle at 15% -8%,rgba(0,82,255,.07),transparent 38%),radial-gradient(circle at 85% 2%,rgba(77,124,255,.05),transparent 34%),#fafafa;
  background-attachment:fixed;
}
a{color:inherit;text-decoration:none}
h1,h2,h3{margin-top:0;font-family:"Plus Jakarta Sans","Inter",sans-serif;letter-spacing:-.028em;font-weight:600;color:#0f172a}
h1{font-size:clamp(32px,5vw,52px);line-height:1.04}
h2{font-size:18px}
p{line-height:1.7;margin-top:0}
.muted{color:var(--muted)}.small{font-size:13px}
.eyebrow{color:var(--accent);font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase}
.code{font-family:"JetBrains Mono",ui-monospace,Consolas,monospace}

/* ---------- page shell ---------- */
.page{width:min(1200px,calc(100% - 32px));margin:0 auto;padding:24px 0 40px}

/* ---------- topbar ---------- */
.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:10px 18px;margin-bottom:22px;border:1px solid var(--line);border-radius:16px;background:rgba(255,255,255,.8);backdrop-filter:blur(12px);box-shadow:var(--shadow-sm)}
.brand{display:flex;align-items:center;gap:12px;font-weight:600;font-size:15px;color:#0f172a}
.brand img{width:36px;height:36px;border-radius:10px;border:1px solid var(--line);padding:6px;background:#f8fafc;box-shadow:var(--shadow-sm)}
.brand span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.nav{display:flex;gap:8px;flex-wrap:wrap}
.nav a,.nav button{display:inline-flex;align-items:center;height:38px;min-height:38px;padding:0 14px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--muted);font-size:13px;font-weight:500;cursor:pointer;box-shadow:var(--shadow-sm);transition:color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease)}
.nav a:hover,.nav button:hover{color:var(--accent);border-color:var(--accent);box-shadow:var(--shadow-accent)}

/* ---------- bento grid ---------- */
.bento{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:16px;align-items:stretch}
.bento-hero{grid-column:span 12}
.bento-stat{grid-column:span 4}
.bento-claim{grid-column:span 8;grid-row:span 2}
.bento-notices{grid-column:span 4}
.bento-info{grid-column:span 4}

/* ---------- hero ---------- */
.hero{padding:36px 32px;border:1px solid var(--line);border-radius:20px;background:linear-gradient(135deg,rgba(0,82,255,.04),rgba(77,124,255,.02)),#fff;box-shadow:var(--shadow-md)}
.hero .eyebrow{display:block;margin-bottom:14px}
.hero h1{margin:0;max-width:760px}

/* ---------- stat card ---------- */
.stat-card{display:flex;flex-direction:column;justify-content:center;gap:8px;padding:24px;border:1px solid var(--line);border-radius:18px;background:#fff;box-shadow:var(--shadow-sm);transition:transform .26s var(--ease),box-shadow .26s ease}
.stat-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.stat-card span{color:var(--muted);font-size:13px;letter-spacing:.02em}
.stat-card strong{font-size:38px;color:#0f172a;font-weight:700;line-height:1;letter-spacing:-.03em}

/* ---------- claim card ---------- */
.claim-card{display:flex;flex-direction:column;padding:28px;border:1px solid var(--line);border-radius:20px;background:#fff;box-shadow:var(--shadow-lg);transition:box-shadow .26s ease}
.claim-card:hover{box-shadow:var(--shadow-xl)}
.claim-card h2{margin-bottom:6px}
.claim-card .muted.small{margin-bottom:22px}

/* ---------- form ---------- */
.field{margin-bottom:16px}
.field label{display:block;margin-bottom:8px;color:#334155;font-size:13px;font-weight:500}
.input-row{display:grid;grid-template-columns:minmax(0,1fr) 80px;gap:8px}
input,textarea{width:100%;min-height:44px;padding:11px 12px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--text);outline:none;font:inherit;transition:border-color .18s ease,box-shadow .18s ease}
input:focus,textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(0,82,255,.12)}
input[readonly]{color:#334155;background:#f8fafc}
textarea{min-height:120px;resize:vertical;font-family:"JetBrains Mono",Consolas,monospace;font-size:13px}

/* ---------- buttons ---------- */
button,.claim-button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 16px;border:0;border-radius:10px;font:inherit;font-weight:600;cursor:pointer;transition:transform .18s var(--ease),box-shadow .18s ease,filter .18s ease}
.claim-button{background:linear-gradient(135deg,#0052ff,#4d7cff);color:#fff;box-shadow:var(--shadow-accent)}
.claim-button:not(:disabled):hover{filter:brightness(1.06);box-shadow:0 8px 24px rgba(0,82,255,.35)}
.claim-button:not(:disabled):active{transform:translateY(1px) scale(.98)}
button:disabled{cursor:not-allowed;opacity:.5}
.copy-button,.convert-button{color:#0f172a;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-sm)}
.copy-button:hover,.convert-button:hover{border-color:#cbd5e1;background:#f8fafc}

.action-row{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:12px}
#cooldown-tip,#captcha-tip{margin-bottom:8px}
.claim-note{padding:12px 14px;border-radius:10px;background:rgba(0,82,255,.06);border:1px solid rgba(0,82,255,.15)}
.ok{color:#16a34a}.bad{color:#dc2626}

/* ---------- notices ---------- */
.notices{display:flex;flex-direction:column;padding:24px;border:1px solid var(--line);border-radius:18px;background:#fff;box-shadow:var(--shadow-sm);min-height:0}
.notices h2{margin-bottom:14px}
.notice-list{display:grid;gap:10px;overflow-y:auto;flex:1;min-height:0;padding-right:4px}
.notice-item{display:grid;gap:8px;padding:14px;border:1px solid var(--line);border-radius:12px;background:#f8fafc;transition:transform .26s var(--ease),box-shadow .26s ease}
.notice-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.notice-time{display:inline-flex;width:max-content;color:#0052ff;background:rgba(0,82,255,.08);padding:4px 10px;border-radius:999px;font-size:12px;font-weight:600}
.notice-body h3{margin:0 0 4px;font-size:15px;color:#0f172a}
.notice-body p{margin:0}
.empty-state{padding:20px;border:1px dashed #cbd5e1;border-radius:12px;color:var(--muted);text-align:center}

/* ---------- info card ---------- */
.info-card{display:flex;flex-direction:column;gap:12px;padding:24px;border:1px solid var(--line);border-radius:18px;background:linear-gradient(135deg,rgba(0,82,255,.03),transparent),#fff;box-shadow:var(--shadow-sm)}
.info-card h2{margin:0}
.info-card p{margin:0;color:var(--muted);font-size:14px}
.info-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:4px}
.info-tags span{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;font-size:12px;font-weight:600;border:1px solid var(--line)}
.info-tags span:nth-child(1){color:#0052ff;background:rgba(0,82,255,.06)}
.info-tags span:nth-child(2){color:#16a34a;background:rgba(22,163,74,.06)}
.info-tags span:nth-child(3){color:#7c3aed;background:rgba(124,58,237,.06)}
.info-links{display:flex;gap:10px;flex-wrap:wrap;margin-top:auto}
.info-links a{display:inline-flex;align-items:center;height:38px;padding:0 14px;border:1px solid var(--line);border-radius:10px;color:var(--accent);font-size:13px;font-weight:600;background:#fff;box-shadow:var(--shadow-sm);transition:border-color .2s,box-shadow .2s}
.info-links a:hover{border-color:var(--accent);box-shadow:var(--shadow-accent)}

/* ---------- footer ---------- */
.footer{margin-top:24px;padding:18px;text-align:center;border:1px solid var(--line);border-radius:16px;background:rgba(255,255,255,.6);color:var(--muted);font-size:13px}

/* ---------- modal ---------- */
.modal-backdrop{position:fixed;inset:0;z-index:50;display:grid;place-items:center;padding:20px;background:rgba(15,23,42,.4);backdrop-filter:blur(6px)}
.modal-backdrop[hidden]{display:none}
.modal{width:min(440px,100%);padding:24px;border:1px solid var(--line);border-radius:16px;background:#fff;box-shadow:var(--shadow-xl)}
.modal-wide{width:min(560px,100%)}
.modal-head{display:flex;align-items:flex-start;justify-content:space-between;gap:14px}
.modal-head h2{margin:0 0 6px}
.modal-form{margin-top:18px}
.icon-button{width:40px;min-width:40px;padding:0;font-size:22px;line-height:1;color:#0f172a;background:#fff;border:1px solid var(--line);border-radius:10px;cursor:pointer;box-shadow:var(--shadow-sm)}
.modal-close{width:100%;color:#0f172a;background:#fff;border:1px solid var(--line);border-radius:10px;min-height:44px;cursor:pointer;font:inherit;font-weight:600;box-shadow:var(--shadow-sm)}
.method-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:18px 0}
.method-card{display:flex;min-height:88px;flex-direction:column;align-items:flex-start;justify-content:center;gap:6px;padding:14px;color:#0f172a;background:#fff;border:1px solid var(--line);border-radius:12px;cursor:pointer;font:inherit;font-weight:600;transition:border-color .2s ease,box-shadow .2s ease}
.method-card:hover{border-color:var(--accent);box-shadow:var(--shadow-accent)}
.method-card span{color:var(--muted);font-size:13px;font-weight:400}
.badge{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;color:#0052ff;background:rgba(0,82,255,.08);font-size:12px;font-weight:600}
.quick-convert-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px}
.quick-convert-toolbar button{background:linear-gradient(135deg,#0052ff,#4d7cff);color:#fff;border:0;border-radius:10px;box-shadow:var(--shadow-accent)}
.no-gap{margin-bottom:0}

#ip-check-turnstile{margin:14px 0;min-height:65px}

/* ---------- tutorial ---------- */
.tutorial-stack{display:grid;gap:10px}
.tutorial-card{display:grid;grid-template-columns:60px minmax(0,1fr);gap:14px;padding:16px;border:1px solid var(--line);border-radius:12px;background:#f8fafc}
.tutorial-card h3{margin:0 0 4px;font-size:17px;color:#0f172a}
.tutorial-card p{margin:0}
.tutorial-card-accent{border-color:rgba(0,82,255,.2);background:linear-gradient(135deg,rgba(0,82,255,.04),rgba(77,124,255,.03))}
.tutorial-index{display:grid;place-items:center;width:60px;height:60px;border-radius:14px;color:#0052ff;background:rgba(0,82,255,.08);border:1px solid rgba(0,82,255,.15);font-size:22px;font-weight:700}


/* ---------- image preview ---------- */
.image-preview-overlay{position:fixed;inset:0;z-index:100;display:grid;place-items:center;padding:24px;background:rgba(0,0,0,0);cursor:zoom-out;opacity:0;transition:opacity .2s ease}
.image-preview-overlay.show{opacity:1;background:rgba(15,23,42,.85)}
.image-preview-overlay img{max-width:100%;max-height:100%;border-radius:10px;box-shadow:var(--shadow-xl);transform:scale(.94);transition:transform .2s ease}
.image-preview-overlay.show img{transform:scale(1)}

/* ---------- scrollbar ---------- */
*::-webkit-scrollbar{width:8px;height:8px}
*::-webkit-scrollbar-thumb{border-radius:999px;background:#cbd5e1;border:2px solid transparent;background-clip:padding-box}
*::-webkit-scrollbar-thumb:hover{background:#94a3b8;background-clip:padding-box}
*::-webkit-scrollbar-track{background:#f1f5f9}
::selection{background:rgba(0,82,255,.2);color:#0f172a}

/* ---------- motion ---------- */
@keyframes mm-rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}
@keyframes mm-pulse{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(1.3);opacity:.6}}
@keyframes mm-shimmer{0%{background-position:-200% 0}100%{background-position:200% 0}}

.topbar,.bento-hero,.bento-stat,.bento-claim,.bento-notices,.bento-info,.footer{animation:mm-rise .55s var(--ease) both}
.bento-hero{animation-delay:.04s}
.bento-stat{animation-delay:.08s}
.bento-claim{animation-delay:.14s}
.bento-notices{animation-delay:.18s}
.bento-info{animation-delay:.22s}
.footer{animation-delay:.26s}

.eyebrow::before{content:"";display:inline-block;width:5px;height:5px;margin-right:8px;border-radius:50%;background:var(--accent);vertical-align:middle;animation:mm-pulse 2.4s ease-in-out infinite}
.modal-backdrop:not([hidden]) .modal{animation:mm-rise .3s var(--ease) both}

/* ---------- responsive ---------- */
@media (max-width:980px){
  .bento-claim{grid-column:span 12;grid-row:auto}
  .bento-notices{grid-column:span 12}
  .bento-info{grid-column:span 12}
}
@media (max-width:720px){
  .page{width:min(100% - 20px,1200px);padding:16px 0 28px}
  .topbar{flex-direction:column;align-items:stretch;gap:10px}
  .nav{justify-content:flex-start}
  .bento-stat{grid-column:span 6}
  .hero{padding:24px 20px}
  .claim-card{padding:22px}
  .notices,.info-card{padding:20px}
}
@media (max-width:520px){
  .bento-stat{grid-column:span 12}
  .input-row{grid-template-columns:minmax(0,1fr) 72px}
  .action-row{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important}}