/* ==================== CSS Variables ==================== */
:root {
  --bg:#ffffff;
  --bg-subtle:#fafafa;
  --bg-section:#f5f5f5;
  --card-bg:#ffffff;
  --text-primary:#111111;
  --text-secondary:#555555;
  --text-muted:#999999;
  --accent:#f5c518;
  --accent-dark:#e6a800;
  --accent-hover:#d49a00;
  --accent-light:#fffaeb;
  --accent-pale:#fff8d6;
  --error:#ef4444;
  --success:#22c55e;
  --border:#e5e5e5;
  --border-accent:rgba(245,197,24,.35);
  --shadow-sm:0 1px 3px rgba(0,0,0,.06);
  --shadow-md:0 4px 16px rgba(0,0,0,.08);
  --shadow-lg:0 12px 40px rgba(0,0,0,.12);
  --shadow-glow:0 8px 32px rgba(245,197,24,.28);
  --r-xs:6px;--r-sm:10px;--r-md:14px;--r-lg:20px;--r-xl:28px;--r-full:9999px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Roboto,sans-serif;
}

/* ==================== Reset ==================== */
*{box-sizing:border-box;margin:0;padding:0}
html,body{max-width:100%;overflow-x:hidden}
body{font-family:var(--font);background:var(--bg);color:var(--text-primary);min-height:100vh;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
button{cursor:pointer;font-family:var(--font);transition:all .2s ease;border:none}
input,textarea,select{width:100%;font-family:var(--font);font-size:14px;outline:none;transition:all .2s ease}
textarea{resize:vertical}
button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,.upload-slot:focus-visible{
  outline:3px solid rgba(245,197,24,.42);
  outline-offset:2px;
}

/* ==================== Form Controls ==================== */
input,textarea,select{
  padding:12px 16px;
  border:1.5px solid var(--border);
  border-radius:var(--r-md);
  background:#fff;
  color:var(--text-primary);
}
input:focus,textarea:focus,select:focus{
  border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(245,197,24,.15);
}
input::placeholder,textarea::placeholder{color:var(--text-muted)}
textarea{min-height:90px;line-height:1.6}
select{-webkit-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23999' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center}

/* ==================== Buttons ==================== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--r-md);
  font-size:14px;font-weight:600;line-height:1;
  transition:all .2s ease;border:none;
}
.btn-primary{
  background:var(--accent);color:#1a1000;
  box-shadow:0 2px 8px rgba(245,197,24,.3);
}
.btn-primary:hover:not(:disabled){
  background:var(--accent-dark);transform:translateY(-1px);
  box-shadow:0 6px 20px rgba(245,197,24,.4);
}
.btn-primary:active:not(:disabled){transform:translateY(0)}
.btn-primary:disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none}
.btn-login-required{background:#1f2937;color:#fff;box-shadow:0 8px 24px rgba(31,41,55,.16)}
.btn-login-required:hover:not(:disabled){background:#111827;box-shadow:0 10px 28px rgba(31,41,55,.2)}
.btn-sm{padding:9px 16px;font-size:13px}
.btn-outline{
  background:transparent;border:1.5px solid var(--border);
  color:var(--text-secondary);
}
.btn-outline:hover{border-color:var(--accent);color:var(--text-primary);background:var(--accent-pale)}

/* ==================== Navigation ==================== */
.nav{
  background:rgba(255,255,255,.92);
  border-bottom:1px solid var(--border);
  position:sticky;top:0;z-index:100;
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:64px;max-width:1400px;margin:0 auto;padding:0 28px;gap:16px;
}
.nav-brand{
  font-size:20px;font-weight:800;letter-spacing:-.3px;
  color:var(--text-primary);white-space:nowrap;flex-shrink:0;
  display:flex;align-items:center;gap:6px;
}
.nav-brand::before{content:"🍌";font-size:18px}
.nav-links{display:flex;align-items:center;gap:4px;flex-wrap:nowrap}
.nav-links>span{
  cursor:pointer;padding:7px 13px;font-size:13.5px;
  color:var(--text-secondary);font-weight:500;border-radius:var(--r-sm);
  white-space:nowrap;transition:all .18s ease;
}
.nav-links>span:hover{color:var(--text-primary);background:var(--bg-section)}
.credits-badge{
  background:var(--accent-pale);color:#7a5800;
  border:1px solid var(--border-accent);
  padding:5px 13px;border-radius:var(--r-full);
  font-size:13px;font-weight:700;white-space:nowrap;
  display:inline-flex;align-items:center;gap:4px;flex-shrink:0;
}
.user-dropdown{position:relative}
.user-btn{
  display:flex;align-items:center;gap:6px;cursor:pointer;
  padding:7px 13px;border-radius:var(--r-sm);
  font-size:13.5px;color:var(--text-secondary);transition:all .18s ease;
}
.user-btn:hover{background:var(--bg-section);color:var(--text-primary)}
.dropdown-menu{
  display:none;position:absolute;top:calc(100% + 6px);right:0;
  background:#fff;border:1px solid var(--border);
  border-radius:var(--r-md);min-width:152px;
  box-shadow:var(--shadow-lg);z-index:200;padding:6px;
}
.dropdown-menu.show{display:block}
.dropdown-menu span{
  display:block;padding:9px 13px;font-size:13px;
  color:var(--text-secondary);cursor:pointer;border-radius:var(--r-sm);
}
.dropdown-menu span:hover{background:var(--bg-section);color:var(--text-primary)}

/* ==================== Main Layout ==================== */
.main{padding:40px 0 80px;min-height:calc(100vh - 64px)}

/* ==================== Hero ==================== */
.hero{
  text-align:center;max-width:860px;margin:0 auto 36px;
  padding:0 24px;
}
.hero h1{
  font-size:44px;line-height:1.15;font-weight:900;
  letter-spacing:-.5px;margin-bottom:14px;color:var(--text-primary);
  text-wrap:balance;
  overflow-wrap:anywhere;
}
.hero h1 span{
  background:linear-gradient(135deg,#f0a800 0%,#f5c518 50%,#ffe066 100%);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;
}
.hero p{
  font-size:16px;color:var(--text-secondary);
  line-height:1.75;max-width:580px;margin:0 auto;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:20px;padding:7px 16px;border-radius:var(--r-full);
  background:var(--accent-pale);border:1px solid var(--border-accent);
  color:#7a5800;font-size:12.5px;font-weight:600;
}

/* ==================== Tool Switch (Mode Tabs) ==================== */
.tool-switch{
  display:flex;justify-content:center;
  width:min(560px,calc(100% - 32px));max-width:560px;margin:0 auto 34px;
  padding:8px;background:rgba(255,255,252,.84);
  border:1px solid rgba(18,21,19,.10);border-radius:12px;
  box-shadow:0 18px 55px rgba(25,31,26,.10),inset 0 1px 0 rgba(255,255,255,.86);
}
.mode-tabs{display:flex;width:100%;gap:10px;align-items:center}
.mode-tab{
  position:relative;display:inline-flex;align-items:center;justify-content:center;gap:8px;
  flex:1 1 0;min-width:0;min-height:52px;padding:12px 14px;text-align:center;
  cursor:pointer;font-size:14px;font-weight:800;
  background:transparent;color:var(--text-muted);
  border:1px solid transparent;border-radius:12px;
  transition:transform .2s ease,background .2s ease,color .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.mode-icon{font-size:18px;line-height:1}
.mode-tab:hover:not(.active){background:rgba(200,242,74,.14);color:#121513;border-color:rgba(131,169,20,.28)}
.mode-tab.active{
  background:#121513;color:var(--accent);
  box-shadow:0 16px 36px rgba(18,21,19,.18),inset 0 0 0 1px rgba(255,255,255,.12);
  transform:translateY(-1px);
}
.mode-badge{
  position:absolute;right:-2px;top:-18px;
  padding:3px 8px;border-radius:999px;
  background:var(--accent);
  color:#121513;font-size:11px;font-weight:900;line-height:1;
  border:1px solid rgba(18,21,19,.12);
  box-shadow:0 10px 22px rgba(200,242,74,.26);
  white-space:nowrap;
}

/* ==================== Gen Grid ==================== */
.gen-grid{
  display:grid;
  grid-template-columns:minmax(240px,.88fr) minmax(300px,1fr) minmax(260px,.88fr);
  gap:20px;max-width:1400px;margin:0 auto;
  padding:0 28px;align-items:stretch;
}
.gen-grid>*{min-width:0}

/* ==================== Batch Mode ==================== */
.batch-panel{
  max-width:1440px;
  margin:0 auto;
  padding:0 34px 70px;
}
.batch-settings{
  position:relative;
  overflow:hidden;
  padding:24px;
  border:1px solid rgba(18,21,19,.10);
  border-radius:12px;
  background:rgba(255,255,252,.84);
  box-shadow:var(--shadow-sm);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
}
.batch-settings::before{
  content:"";
  position:absolute;
  inset:0 0 auto;
  height:4px;
  background:linear-gradient(90deg,var(--accent),rgba(200,242,74,.18),transparent);
}
.batch-settings-head{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:18px;
  margin-bottom:20px;
}
.batch-settings h2{
  display:flex;
  align-items:center;
  gap:8px;
  margin:0 0 8px;
  font-size:18px;
  line-height:1.2;
}
.batch-settings h2 span{
  width:28px;
  height:28px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:7px;
  background:#121513;
  color:var(--accent);
  font-size:14px;
}
.batch-settings p{
  margin:0;
  color:var(--text-secondary);
  font-size:13px;
}
.batch-primary-btn{
  min-height:42px;
  padding:0 18px;
  border-radius:8px;
  background:#121513;
  color:var(--accent);
  font-weight:850;
  box-shadow:0 14px 34px rgba(18,21,19,.15);
}
.batch-setting-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:14px;
  margin-bottom:18px;
}
.batch-field{
  display:grid;
  gap:7px;
  min-width:0;
}
.batch-field span{
  font-size:12px;
  font-weight:800;
  color:var(--text-muted);
}
.batch-cost-row{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  padding:14px 0;
  border-top:1px solid rgba(18,21,19,.08);
  border-bottom:1px solid rgba(18,21,19,.08);
}
.batch-cost-row span{
  padding:8px 11px;
  border-radius:8px;
  background:rgba(200,242,74,.13);
  color:#20261f;
  font-size:13px;
  font-weight:800;
}
.batch-toolbar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding-top:18px;
  color:var(--text-secondary);
  font-size:13px;
}
.batch-toolbar strong{color:var(--accent-dark)}
.batch-toolbar-actions{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  justify-content:flex-end;
}
.batch-toolbar-actions button{
  min-height:38px;
  padding:0 14px;
  border:1px solid rgba(18,21,19,.12);
  border-radius:8px;
  background:rgba(255,255,252,.72);
  color:#303630;
  font-weight:750;
}
.batch-toolbar-actions button:disabled{
  opacity:.48;
  cursor:not-allowed;
}
.batch-toolbar-actions .batch-download{
  background:#121513;
  color:var(--accent);
  border-color:#121513;
}
.batch-task-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
  margin-top:24px;
}
.batch-task-card{
  min-width:0;
  padding:18px;
  border:1.5px solid rgba(131,169,20,.58);
  border-radius:12px;
  background:rgba(255,255,252,.86);
  box-shadow:var(--shadow-sm);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.batch-task-card:hover{
  transform:translateY(-2px);
  border-color:var(--accent-dark);
  box-shadow:var(--shadow-md);
}
.batch-task-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  margin-bottom:14px;
}
.batch-task-head strong{
  font-size:16px;
}
.batch-task-head>div{
  display:flex;
  gap:6px;
  flex-wrap:wrap;
  justify-content:flex-end;
}
.batch-pill{
  display:inline-flex;
  align-items:center;
  min-height:24px;
  padding:0 8px;
  border-radius:6px;
  background:rgba(18,21,19,.06);
  color:#4a514b;
  font-size:11px;
  font-weight:850;
}
.batch-pill.done{
  background:rgba(200,242,74,.22);
  color:#56710a;
}
.batch-pill.running{
  background:rgba(59,130,246,.13);
  color:#1d4ed8;
}
.batch-pill.error{
  background:rgba(239,68,68,.13);
  color:#b91c1c;
}
.batch-pill.cancelled{
  background:rgba(107,114,128,.16);
  color:#4b5563;
}
.batch-task-body{
  display:grid;
  grid-template-columns:1fr 1.22fr;
  gap:10px;
  align-items:stretch;
}
.batch-ref-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:6px;
  align-content:start;
}
.batch-ref-grid button{
  min-height:54px;
  border:1.5px dashed rgba(131,169,20,.38);
  border-radius:8px;
  background:rgba(246,255,217,.36);
  color:#6e7d45;
  font-weight:850;
  cursor:pointer;
  overflow:hidden;
}
.batch-ref-grid button.has-image{
  position:relative;
  padding:0;
  border-style:solid;
  background:#111513;
}
.batch-ref-grid button.has-image img{
  width:100%;
  height:100%;
  min-height:54px;
  display:block;
  object-fit:cover;
}
.batch-ref-grid button.has-image span{
  position:absolute;
  right:5px;
  bottom:5px;
  margin:0;
  padding:2px 5px;
  border-radius:5px;
  background:rgba(18,21,19,.82);
  color:var(--accent);
}
.batch-ref-grid button span{
  display:block;
  margin-top:3px;
  font-size:11px;
  font-weight:650;
}
.batch-ref-grid small{
  grid-column:1/-1;
  padding-top:4px;
  color:var(--text-muted);
  text-align:center;
}
.batch-preview{
  position:relative;
  min-height:178px;
  overflow:hidden;
  border-radius:10px;
  background:
    linear-gradient(135deg,rgba(200,242,74,.18),transparent 42%),
    linear-gradient(145deg,#17201c,#29352d);
  color:#fff;
  display:flex;
  flex-direction:column;
  justify-content:flex-end;
  padding:14px;
}
.batch-preview::before{
  content:"";
  position:absolute;
  inset:18px;
  border:1px solid rgba(200,242,74,.26);
  border-radius:8px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.06),transparent);
}
.batch-preview.alt{background:linear-gradient(145deg,#111827,#2f3d35)}
.batch-preview.deep{background:linear-gradient(145deg,#182018,#31412f)}
.batch-preview span{
  position:absolute;
  left:8px;
  top:8px;
  width:22px;
  height:22px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:6px;
  background:#121513;
  color:var(--accent);
  font-size:12px;
  font-weight:900;
}
.batch-preview strong,.batch-preview em{
  position:relative;
  z-index:1;
}
.batch-preview strong{font-size:15px}
.batch-preview em{
  margin-top:4px;
  color:rgba(255,255,255,.68);
  font-size:12px;
  font-style:normal;
}
.batch-preview.loading::before{
  animation:batchShimmer 1.8s linear infinite;
}
.batch-preview.success::before{
  background:linear-gradient(180deg,transparent,rgba(18,21,19,.68));
  border-color:rgba(255,255,255,.18);
}
.batch-preview.error{
  background:linear-gradient(145deg,#3a1515,#1d1616);
}
.batch-preview.cancelled{
  background:linear-gradient(145deg,#2f302b,#171816);
}
.batch-preview>img{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  cursor:zoom-in;
}
.batch-progress-track{
  position:relative;
  z-index:1;
  height:6px;
  margin-top:10px;
  overflow:hidden;
  border-radius:99px;
  background:rgba(255,255,255,.18);
}
.batch-progress-track i{
  display:block;
  height:100%;
  border-radius:inherit;
  background:linear-gradient(90deg,var(--accent),#fff3a1);
  transition:width .55s ease;
}
@keyframes batchShimmer{
  0%{transform:translateX(-22%)}
  100%{transform:translateX(22%)}
}
.batch-prompt-box{
  margin-top:12px;
  overflow:hidden;
  border:1.5px solid rgba(131,169,20,.28);
  border-radius:10px;
  background:rgba(255,255,252,.76);
}
.batch-prompt-box textarea{
  min-height:74px;
  border:0;
  border-radius:0;
  background:transparent;
  box-shadow:none;
  resize:vertical;
}
.batch-prompt-box>div{
  display:flex;
  justify-content:flex-end;
  gap:6px;
  padding:0 8px 8px;
}
.batch-prompt-box button,.batch-task-actions button{
  min-height:30px;
  padding:0 10px;
  border-radius:7px;
  background:rgba(18,21,19,.06);
  color:#3d443f;
  font-size:12px;
  font-weight:750;
}
.batch-mini-controls{
  display:grid;
  grid-template-columns:1.1fr .8fr .8fr .9fr;
  gap:8px;
  margin-top:12px;
}
.batch-mini-controls select{
  height:38px;
  padding:8px 28px 8px 10px;
  border-radius:8px;
  font-size:12px;
  font-weight:700;
}
.batch-task-actions{
  display:grid;
  grid-template-columns:.8fr 1.6fr .9fr;
  gap:8px;
  margin-top:10px;
}
.batch-task-actions button{
  min-height:38px;
  border:1px solid rgba(18,21,19,.10);
  background:rgba(255,255,252,.76);
}
.batch-task-actions .start{
  background:#121513;
  color:var(--accent);
  border-color:#121513;
}
.batch-task-actions button:disabled,
.batch-primary-btn:disabled,
.batch-add-btn:disabled{
  cursor:not-allowed;
  opacity:.58;
}
.batch-add-btn{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:14px;
  margin:26px auto 0;
  min-width:230px;
  min-height:46px;
  padding:0 18px;
  border:1px dashed rgba(131,169,20,.52);
  border-radius:10px;
  background:rgba(255,255,252,.78);
  color:#2f362f;
  font-weight:850;
}
.batch-add-btn span{
  color:var(--text-muted);
  font-weight:750;
}
.is-batch-mode .hero{
  display:none;
}

/* ==================== Cards ==================== */
.card{
  background:#fff;border:1.5px solid var(--border);
  border-radius:var(--r-xl);padding:22px;
  box-shadow:var(--shadow-sm);
  transition:box-shadow .25s ease,border-color .25s ease;
  min-height:320px;min-width:0;
}
.gen-grid>.card{
  height:100%;
  min-height:0;
}
.gen-grid>.card:nth-child(1),
.gen-grid>.card:nth-child(3){
  display:flex;
  flex-direction:column;
}
#histArea{
  flex:1 1 auto;
  min-height:0;
  overflow-y:auto;
  padding-right:4px;
}
#histArea::-webkit-scrollbar{width:6px}
#histArea::-webkit-scrollbar-thumb{background:rgba(18,21,19,.18);border-radius:999px}
#histArea::-webkit-scrollbar-track{background:transparent}
.card:hover{
  box-shadow:var(--shadow-md);border-color:var(--border-accent);
}
.gen-grid>.card:nth-child(2){
  background:linear-gradient(180deg,#fffaf0 0%,#fffdf8 100%);
  border-color:#ffd78a;
  box-shadow:0 10px 30px rgba(255,193,84,.16);
}
.card-title{
  font-size:16px;font-weight:700;margin-bottom:16px;
  color:var(--text-primary);
}

/* ==================== Param Labels ==================== */
.param-label{
  font-size:12px;font-weight:700;color:var(--text-muted);
  margin-bottom:7px;display:block;letter-spacing:.4px;text-transform:uppercase;
}
.param-row{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:14px}

/* ==================== Model Grid ==================== */
.model-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:16px}
.model-option{
  border:1.5px solid var(--border);background:#fafafa;
  border-radius:var(--r-md);padding:11px 8px;
  display:flex;align-items:center;justify-content:center;gap:6px;
  flex-direction:column;
  font-size:12.5px;font-weight:700;color:var(--text-secondary);
  cursor:pointer;min-height:52px;min-width:0;transition:all .18s ease;text-align:center;
  overflow-wrap:anywhere;word-break:break-word;
}
.model-option small{font-size:10.5px;font-weight:500;color:var(--text-muted);display:block}
.model-option:hover{border-color:var(--accent);background:var(--accent-pale);color:var(--text-primary)}
.model-option.active{
  border-color:var(--accent);background:var(--accent-pale);
  color:var(--text-primary);box-shadow:0 4px 14px rgba(245,197,24,.22);
}

/* ==================== Resolution ==================== */
.resolution-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-bottom:14px}
.resolution-option{
  border:1.5px solid var(--border);background:#fafafa;
  border-radius:var(--r-md);padding:10px 6px;
  font-size:13px;font-weight:700;color:var(--text-secondary);
  cursor:pointer;text-align:center;transition:all .18s ease;min-width:0;
}
.resolution-option:hover{border-color:var(--accent);background:var(--accent-pale);color:var(--text-primary)}
.resolution-option.active{
  background:var(--accent);color:#1a1000;
  border-color:var(--accent);box-shadow:0 4px 12px rgba(245,197,24,.32);
}

/* ==================== Ratio Selector ==================== */
.param-title{
  margin-bottom:14px;
  font-size:18px;
  color:var(--text-primary);
  text-transform:none;
  letter-spacing:0;
}
.ratio-grid{
  display:grid;
  grid-template-columns:repeat(5,minmax(0,1fr));
  gap:10px;
  margin-bottom:14px;
}
.ratio-option{
  min-height:60px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:6px;
  padding:8px 6px;
  border:1.5px solid #ffe0a8;
  border-radius:var(--r-sm);
  background:#fffdf8;
  color:var(--text-secondary);
  font-size:12px;
  font-weight:700;
  text-align:center;
  cursor:pointer;
  transition:all .18s ease;
}
.ratio-option:hover{
  border-color:#ffb347;
  background:#fff7e8;
  color:var(--text-primary);
}
.ratio-option.active{
  border-color:#ff8a00;
  background:linear-gradient(135deg,#ff9700,#ff7a00);
  color:#fff;
  box-shadow:0 8px 18px rgba(255,138,0,.28);
}
.ratio-box{
  width:22px;
  height:16px;
  flex:0 0 auto;
  border:2px solid currentColor;
  border-radius:2px;
  background:transparent;
  opacity:.8;
}
.ratio-option.active .ratio-box{opacity:1;background:transparent;border-color:#fff}
.ratio-box-square{width:10px;height:10px}
.ratio-box-2-3{width:11px;height:18px}
.ratio-box-3-2{width:18px;height:11px}
.ratio-box-3-4{width:12px;height:16px}
.ratio-box-4-3{width:16px;height:12px}
.ratio-box-4-5{width:13px;height:17px}
.ratio-box-5-4{width:17px;height:13px}
.ratio-box-9-16{width:10px;height:20px}
.ratio-box-16-9{width:22px;height:12px}
.ratio-box-21-9{width:28px;height:8px}
.ratio-box-wide{width:22px;height:12px}
.ratio-box-tall{width:10px;height:20px}
.ratio-box-landscape{width:16px;height:12px}
.ratio-box-portrait{width:12px;height:16px}
.ratio-text{line-height:1;white-space:nowrap}

/* ==================== Upload Grid ==================== */
.upload-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:8px;
  border:1.5px dashed var(--border);
  border-radius:var(--r-lg);padding:12px;background:var(--bg-subtle);
  margin-bottom:4px;
}
.upload-slot{
  position:relative;aspect-ratio:1;border:1.5px dashed #e0e0e0;border-radius:var(--r-md);
  display:flex;align-items:center;justify-content:center;
  flex-direction:column;gap:2px;
  text-align:center;color:var(--text-muted);font-size:11px;
  cursor:pointer;background:#fff;transition:all .18s ease;overflow:hidden;
}
.upload-slot:hover{border-color:var(--accent);background:var(--accent-pale);color:#7a5800}
.is-guest .upload-slot{background:#f8f8f8;color:#a3a3a3}
.is-guest .upload-slot::after{
  content:"登录后上传";
  position:absolute;left:8px;right:8px;bottom:8px;
  padding:4px 6px;border-radius:var(--r-xs);
  background:rgba(31,41,55,.78);color:#fff;
  font-size:10px;font-weight:700;line-height:1.2;
}
.upload-slot img{width:100%;height:100%;object-fit:cover;border-radius:calc(var(--r-md) - 2px)}

/* ==================== History ==================== */
.gen-history{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:12px}
.gen-history-item{position:relative;display:inline-block;width:100%}
.gen-history-item img{
  width:100%;aspect-ratio:1;object-fit:cover;
  border-radius:var(--r-md);cursor:pointer;
  transition:all .2s ease;box-shadow:var(--shadow-sm);
  border:1.5px solid var(--border);display:block;
}
.gen-history-item img:hover{transform:scale(1.04);box-shadow:var(--shadow-md)}
.gen-history-item .del-btn{
  position:absolute;top:5px;right:5px;
  width:22px;height:22px;border:none;border-radius:50%;
  background:rgba(0,0,0,.55);color:#fff;
  font-size:11px;line-height:22px;text-align:center;
  cursor:pointer;opacity:0;transition:opacity .18s ease;z-index:2;padding:0;
}
.gen-history-item:hover .del-btn{opacity:1}

/* ==================== Status Box ==================== */
.status-box{
  margin-bottom:14px;padding:12px 14px;
  border:1.5px solid var(--border);border-radius:var(--r-md);
  background:var(--bg-subtle);color:var(--text-secondary);
  font-size:13px;line-height:1.6;
}
.status-box strong{color:var(--text-primary)}
.status-box.error{background:#fff5f5;border-color:rgba(239,68,68,.3);color:#b91c1c}
.status-box.success{background:#f0fdf4;border-color:rgba(34,197,94,.3);color:#15803d}

/* ==================== Result Area ==================== */
.result-area{
  min-height:400px;display:flex;align-items:center;justify-content:center;
  background:var(--bg-subtle);border-radius:var(--r-lg);
  border:1.5px solid var(--border);padding:24px;
  margin-top:0;transition:all .3s ease;
}
.result-area.has-img{border-color:var(--accent);background:var(--accent-pale);box-shadow:var(--shadow-glow)}
.result-area img{max-width:100%;max-height:480px;border-radius:var(--r-md)}
.result-area .tx{
  color:var(--text-secondary);font-size:14px;line-height:1.75;
  white-space:pre-wrap;word-break:break-word;
  width:100%;max-height:460px;overflow-y:auto;
}
.result-img-wrap{width:100%;text-align:center}
.result-img-wrap img{max-width:100%;max-height:480px;border-radius:var(--r-md)}
.result-img-zoom{cursor:zoom-in;transition:transform .18s ease}
.result-img-zoom:hover{transform:scale(1.015)}
.lightbox{
  display:none;position:fixed;inset:0;
  background:rgba(0,0,0,.86);
  z-index:100000;align-items:center;justify-content:center;
  padding:32px;cursor:zoom-out;
}
.lightbox.show{display:flex}
.lightbox img{
  max-width:96vw;max-height:92vh;
  border-radius:var(--r-md);
  box-shadow:0 20px 60px rgba(0,0,0,.5);
  cursor:default;
}
.lightbox-close{
  position:absolute;top:22px;right:26px;
  width:42px;height:42px;border:none;border-radius:50%;
  background:rgba(255,255,255,.14);color:#fff;
  font-size:20px;line-height:1;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  transition:background .16s ease;
}
.lightbox-close:hover{background:rgba(255,255,255,.28)}
.result-actions{display:flex;gap:10px;justify-content:center;margin-top:16px;flex-wrap:wrap}
.result-actions .btn{min-width:110px;padding:9px 16px;font-size:13px;border-radius:var(--r-md)}
.result-placeholder{text-align:center;color:var(--text-muted);max-width:220px;line-height:1.8}
.result-placeholder .icon{font-size:44px;margin-bottom:10px;display:block;opacity:.45}

/* ==================== Stats Strip ==================== */
.stats-strip{
  display:flex;justify-content:center;gap:80px;
  max-width:860px;margin:52px auto 0;
  padding:36px 24px 0;
  border-top:1px solid var(--border);text-align:center;
}
.stats-strip strong{display:block;font-size:32px;font-weight:900;color:var(--accent-dark);margin-bottom:6px}
.stats-strip span{font-size:13px;color:var(--text-muted);font-weight:500}

.site-footer{
  max-width:1100px;
  margin:24px auto 0;
  padding:0 24px 34px;
  color:var(--text-muted);
  font-size:13px;
  line-height:1.8;
  text-align:center;
}
.site-footer a{
  color:var(--accent-dark);
  text-decoration:none;
}
.site-footer a:hover{text-decoration:underline}

/* ==================== Auth Modal ==================== */
.auth-modal{
  display:none;position:fixed;inset:0;
  background:rgba(0,0,0,.45);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  z-index:9999;align-items:center;justify-content:center;padding:20px;
}
.auth-modal.show{display:flex}
.auth-modal-card{
  width:100%;max-width:720px;max-height:90vh;overflow-y:auto;
  background:#fff;border:1px solid var(--border);
  border-radius:var(--r-xl);
  box-shadow:0 24px 60px rgba(0,0,0,.18);
  animation:modalIn .22s ease;
}
.inline-header{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 26px;border-bottom:1px solid var(--border);
}
.inline-title{font-size:18px;font-weight:800;color:var(--text-primary)}
.inline-close{
  width:34px;height:34px;border:1.5px solid var(--border);
  background:#fff;border-radius:50%;font-size:16px;
  color:var(--text-muted);display:flex;align-items:center;justify-content:center;
  cursor:pointer;transition:all .18s ease;flex-shrink:0;
}
.inline-close:hover{background:#fff5f5;color:var(--error);border-color:rgba(239,68,68,.3)}
.inline-body{padding:24px 26px 28px}
.auth-layout{
  display:grid;grid-template-columns:minmax(200px,.75fr) 1fr;
  gap:28px;align-items:center;
}
.auth-copy{color:var(--text-secondary);font-size:14px;line-height:1.8;padding:12px 0}
.auth-copy strong{display:block;color:var(--text-primary);font-size:22px;line-height:1.3;margin-bottom:10px;font-weight:800}
.auth-form{
  background:var(--bg-subtle);border:1.5px solid var(--border);
  border-radius:var(--r-lg);padding:20px;
}

/* ==================== Form Groups ==================== */
.form-group{margin-bottom:18px}
.form-group label{display:block;font-size:13px;font-weight:600;margin-bottom:7px;color:var(--text-primary)}
.form-row{display:flex;gap:10px}
.code-btn{
  padding:12px 16px;background:var(--accent);color:#1a1000;
  border:none;border-radius:var(--r-md);font-size:13px;font-weight:700;
  cursor:pointer;white-space:nowrap;transition:all .2s ease;min-width:110px;
}
.code-btn:hover:not(:disabled){background:var(--accent-dark);transform:translateY(-1px)}
.code-btn:disabled{opacity:.55;cursor:not-allowed;transform:none}

/* ==================== Content List ==================== */
.content-list{max-height:400px;overflow-y:auto}
.content-item{padding:16px 0;border-bottom:1px solid var(--border)}
.content-item:last-child{border-bottom:none}
.content-item h4{font-size:15px;font-weight:700;margin-bottom:4px;color:var(--text-primary)}
.content-item .date{font-size:12px;color:var(--text-muted)}
.content-item p{font-size:13px;color:var(--text-secondary);margin-top:8px;line-height:1.65}
.rich-content{
  color:var(--text-secondary);
  font-size:14px;
  line-height:1.8;
  overflow-wrap:anywhere;
}
.rich-content h1,.rich-content h2,.rich-content h3{
  margin:0 0 12px;
  color:var(--text-primary);
  line-height:1.3;
}
.rich-content p,.rich-content ul,.rich-content ol,.rich-content blockquote{
  margin:0 0 12px;
}
.rich-content ul,.rich-content ol{
  padding-left:1.4em;
}
.rich-content a{
  color:var(--accent-dark);
  text-decoration:underline;
}
.rich-content img,.rich-content video{
  max-width:100%;
  height:auto;
  border-radius:var(--r-md);
}

/* ==================== Credit Packages ==================== */
.package-modal-body{
  padding-top:20px;
}
.package-hero{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  margin-bottom:18px;
  padding:16px 18px;
  border:1px solid rgba(18,21,19,.10);
  border-radius:12px;
  background:
    linear-gradient(135deg,rgba(245,197,24,.18),transparent 48%),
    rgba(255,255,252,.86);
}
.package-hero strong{
  display:block;
  margin-bottom:4px;
  font-size:18px;
  font-weight:900;
  color:#121513;
}
.package-hero span{
  color:var(--text-secondary);
  font-size:13px;
}
.package-balance{
  flex:0 0 auto;
  min-width:104px;
  padding:10px 12px;
  border-radius:10px;
  background:#121513;
  color:var(--accent);
  font-size:13px;
  font-weight:850;
  text-align:center;
}
.package-balance b{
  display:block;
  margin-top:2px;
  font-size:22px;
  line-height:1;
}
.package-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:14px;
}
.package-card{
  position:relative;
  min-height:210px;
  padding:18px;
  overflow:hidden;
  border:1.5px solid rgba(18,21,19,.10);
  border-radius:12px;
  background:rgba(255,255,252,.92);
  box-shadow:0 10px 28px rgba(18,21,19,.07);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.package-card::before{
  content:"";
  position:absolute;
  inset:0 0 auto;
  height:4px;
  background:linear-gradient(90deg,var(--accent),rgba(245,197,24,.12));
}
.package-card:hover{
  transform:translateY(-2px);
  border-color:rgba(245,197,24,.65);
  box-shadow:0 16px 38px rgba(18,21,19,.11);
}
.package-card.is-featured{
  background:linear-gradient(180deg,#fff8dc,#fffdf7);
  border-color:rgba(245,197,24,.72);
}
.package-card em{
  position:absolute;
  top:12px;
  right:12px;
  padding:4px 8px;
  border-radius:7px;
  background:#121513;
  color:var(--accent);
  font-size:11px;
  font-style:normal;
  font-weight:900;
}
.package-name{
  margin-top:12px;
  color:var(--text-muted);
  font-size:13px;
  font-weight:850;
  text-transform:uppercase;
}
.package-credits{
  margin-top:12px;
  font-size:38px;
  font-weight:950;
  line-height:1;
  color:#121513;
}
.package-credits span{
  margin-left:5px;
  font-size:13px;
  color:var(--text-secondary);
  font-weight:800;
}
.package-price{
  margin-top:10px;
  color:#8a6100;
  font-size:18px;
  font-weight:900;
}
.pay-method-row{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:8px;
  margin-top:18px;
}
.pay-method-row button{
  min-height:40px;
  border-radius:8px;
  border:1px solid rgba(18,21,19,.12);
  background:#121513;
  color:var(--accent);
  font-weight:850;
}
.pay-method-row button:hover{
  background:#1d231f;
  transform:translateY(-1px);
}
.packages-loading,.payment-empty{
  padding:34px 18px;
  border:1px dashed rgba(18,21,19,.16);
  border-radius:12px;
  background:rgba(255,255,252,.72);
  color:var(--text-secondary);
  text-align:center;
  font-size:14px;
}
.payment-progress{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:8px;
  padding:32px 16px;
  text-align:center;
}
.payment-progress strong{
  color:#121513;
  font-size:17px;
}
.payment-progress em{
  max-width:100%;
  color:var(--text-muted);
  font-size:12px;
  font-style:normal;
  word-break:break-all;
}
.wechat-pay-box{
  display:grid;
  grid-template-columns:240px 1fr;
  gap:22px;
  align-items:center;
}
.wechat-qr{
  display:grid;
  justify-items:center;
  gap:10px;
  padding:16px;
  border:1px solid rgba(18,21,19,.10);
  border-radius:12px;
  background:#fff;
}
.wechat-qr img{
  width:220px;
  height:220px;
  border-radius:8px;
}
.wechat-qr span{
  font-weight:900;
  color:#121513;
}
.payment-copy strong{
  display:block;
  margin-bottom:8px;
  font-size:18px;
  color:#121513;
}
.payment-copy p{
  margin:0 0 14px;
  color:var(--text-secondary);
  line-height:1.7;
}
.payment-copy button{
  min-height:38px;
  padding:0 14px;
  border-radius:8px;
  background:var(--accent);
  color:#121513;
  font-weight:850;
}
.payment-status-box{
  margin-top:16px;
  padding:12px 14px;
  border:1px solid rgba(18,21,19,.10);
  border-radius:10px;
  background:rgba(245,197,24,.12);
  color:#6f5400;
  font-size:13px;
  font-weight:750;
  text-align:center;
}
.payment-status-box.success{
  border-color:rgba(34,197,94,.28);
  background:#f0fdf4;
  color:#15803d;
}
@media(max-width:760px){
  .package-hero,.wechat-pay-box{
    grid-template-columns:1fr;
    display:grid;
  }
  .package-grid{
    grid-template-columns:1fr;
  }
  .package-balance{
    width:100%;
  }
  .wechat-pay-box{
    justify-items:center;
  }
  .payment-copy{
    text-align:center;
  }
}

/* ==================== Prompt Expand Modal ==================== */
.prompt-label-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  margin-top:2px;
}
.prompt-label-row .param-label{margin-bottom:7px}
.prompt-tools-row{margin:18px 0 8px}
.prompt-tools{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.ai-helper-btn,.limit-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:4px;
  min-height:28px;padding:5px 11px;border-radius:var(--r-full);
  border:1.5px solid #f0d1ff;background:#fff;color:#7c3aed;
  font-size:12px;font-weight:700;line-height:1;
}
.ai-helper-btn:hover{background:#faf5ff;border-color:#c084fc;transform:translateY(-1px)}
.limit-btn{border-color:#ffd8a8;background:#fff7e8;color:#f97316}
.limit-btn:hover{background:#ffedd5;border-color:#fdba74;transform:translateY(-1px)}
.prompt-mode-tip{
  margin:0 0 12px;padding:12px 14px;border:1px solid #ffd99b;
  border-radius:var(--r-sm);background:#fff8e8;color:#f28a00;
  font-size:13px;font-weight:700;text-align:center;
}
.prompt-box{
  position:relative;margin-bottom:22px;border:2px solid #ff9d00;
  border-radius:var(--r-md);background:#fff;overflow:hidden;
  box-shadow:0 6px 18px rgba(255,157,0,.08);
}
.prompt-box textarea{
  min-height:118px;border:0;border-radius:0;padding:18px 18px 46px;
  resize:vertical;box-shadow:none;background:#fff;
}
.prompt-box textarea:focus{border-color:transparent;box-shadow:none}
.prompt-actions{
  position:absolute;left:12px;right:12px;bottom:8px;
  display:flex;align-items:center;justify-content:space-between;gap:8px;pointer-events:none;
}
.prompt-action{
  pointer-events:auto;display:inline-flex;align-items:center;justify-content:center;
  padding:5px 10px;border:1px solid #ffd8a8;border-radius:var(--r-full);
  background:rgba(255,255,255,.92);color:#f97316;font-size:12px;font-weight:600;
}
.prompt-action:hover{background:#fff7e8;border-color:#ffb347}
.prompt-action.clear{color:#ef4444;border-color:#fecaca}
.guest-cta-note{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin:-8px 0 14px;padding:12px 14px;
  border:1.5px solid rgba(31,41,55,.12);border-radius:var(--r-md);
  background:#fff;color:var(--text-secondary);
  box-shadow:0 4px 14px rgba(31,41,55,.05);
}
.guest-cta-note strong{display:block;color:var(--text-primary);font-size:14px;margin-bottom:2px}
.guest-cta-note span{display:block;font-size:12px;line-height:1.5}
.guest-cta-note button{
  flex:0 0 auto;padding:8px 14px;border-radius:var(--r-sm);
  background:#1f2937;color:#fff;font-size:13px;font-weight:700;
}
.guest-cta-note button:hover{background:#111827;transform:translateY(-1px)}
.is-logged-in .guest-cta-note{display:none}
.count-row{display:grid;grid-template-columns:auto 1fr;align-items:center;gap:12px;margin-bottom:18px}
.count-label{margin:0;font-size:14px;color:var(--text-primary);text-transform:none;letter-spacing:0}
.count-row select{height:44px;border-color:#ffd8a8;border-radius:var(--r-sm);font-weight:700}
.advanced-param-row{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:8px;
  margin:-4px 0 18px;
}
.advanced-param-row label{display:block}
.advanced-param-row span{
  display:block;
  margin-bottom:6px;
  color:var(--text-muted);
  font-size:12px;
  font-weight:800;
}
.advanced-param-row select{
  height:40px;
  border-radius:8px;
  background-color:rgba(255,255,252,.74);
  font-size:13px;
  font-weight:800;
}
.expand-btn{
  width:30px;
  height:30px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  flex:0 0 auto;
  border:1.5px solid var(--border);
  border-radius:var(--r-sm);
  background:#fff;
  color:var(--text-secondary);
  font-size:16px;
  line-height:1;
}
.expand-btn:hover{
  border-color:var(--accent);
  background:var(--accent-pale);
  color:var(--text-primary);
}
.expand-modal{
  display:none;
  position:fixed;
  inset:0;
  z-index:9998;
  align-items:center;
  justify-content:center;
  padding:20px;
  background:rgba(0,0,0,.45);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
}
.expand-modal.show{display:flex}
.expand-modal-card{
  width:min(900px,100%);
  max-height:88vh;
  display:flex;
  flex-direction:column;
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--r-xl);
  box-shadow:0 24px 60px rgba(0,0,0,.18);
  animation:modalIn .22s ease;
}
.expand-modal-header{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 22px;
  border-bottom:1px solid var(--border);
}
.expand-modal-title{
  font-size:16px;
  font-weight:800;
  color:var(--text-primary);
}
.expand-textarea{
  min-height:360px;
  margin:20px 22px 0;
  width:calc(100% - 44px);
  resize:vertical;
  font-size:15px;
}
.expand-modal-card>.prompt-hint{margin-left:22px!important;margin-right:22px!important}
.expand-modal-footer{
  display:flex;
  justify-content:flex-end;
  gap:10px;
  padding:18px 22px 22px;
}

/* ==================== AI Assistant Drawer ==================== */
.ai-drawer-mask{
  display:none;position:fixed;inset:0;z-index:9996;
  background:rgba(0,0,0,.28);backdrop-filter:blur(3px);-webkit-backdrop-filter:blur(3px);
}
.ai-drawer-mask.show{display:block}
.ai-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(420px,92vw);
  background:#fff;z-index:9997;box-shadow:-18px 0 48px rgba(0,0,0,.16);
  transform:translateX(105%);transition:transform .24s ease;
  display:flex;flex-direction:column;border-left:1px solid var(--border);
}
.ai-drawer.show{transform:translateX(0)}
.ai-drawer-header{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:18px 20px;border-bottom:1px solid var(--border);
  background:linear-gradient(135deg,#fff9e8,#fff);
}
.ai-drawer-header strong{display:block;font-size:18px;color:var(--text-primary);margin-bottom:4px}
.ai-drawer-header span{display:block;font-size:12px;color:var(--text-muted)}
.ai-chat{flex:1;overflow-y:auto;padding:18px;background:#fafafa;display:flex;flex-direction:column;gap:12px}
.ai-msg{max-width:88%;padding:12px 14px;border-radius:16px;font-size:13px;line-height:1.7;white-space:pre-wrap;word-break:break-word}
.ai-msg-bot{align-self:flex-start;background:#fff;border:1px solid var(--border);color:var(--text-secondary)}
.ai-msg-user{align-self:flex-end;background:var(--accent);color:#1a1000;border-bottom-right-radius:6px}
.ai-use-btn{
  margin-top:10px;padding:7px 12px;border-radius:var(--r-full);
  background:var(--accent);color:#1a1000;font-size:12px;font-weight:700;
}
.ai-use-btn:hover{background:var(--accent-dark)}
.ai-input-area{padding:14px 16px 16px;border-top:1px solid var(--border);background:#fff}
.ai-image-tool{
  margin-bottom:10px;
  padding:10px;
  border:1px solid rgba(18,21,19,.10);
  border-radius:8px;
  background:rgba(238,240,234,.62);
}
.ai-image-upload{
  width:100%;
  min-height:42px;
  border:1px dashed rgba(18,21,19,.24);
  border-radius:8px;
  background:rgba(255,255,252,.78);
  color:#121513;
  font-size:13px;
  font-weight:800;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  transition:border-color .18s ease,background .18s ease,transform .18s ease;
}
.ai-image-upload span{
  width:22px;height:22px;border-radius:6px;
  display:inline-flex;align-items:center;justify-content:center;
  background:#121513;color:var(--accent);
  font-size:17px;line-height:1;
}
.ai-image-upload:hover{
  border-color:rgba(131,169,20,.55);
  background:#fff;
  transform:translateY(-1px);
}
.ai-image-preview{
  margin-top:10px;
  align-items:center;
  gap:10px;
}
.ai-image-preview img{
  width:58px;
  height:58px;
  object-fit:cover;
  border-radius:8px;
  border:1px solid rgba(18,21,19,.10);
}
.ai-image-preview strong{
  display:block;
  max-width:260px;
  color:#121513;
  font-size:13px;
  line-height:1.35;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.ai-image-preview span{
  display:block;
  margin-top:4px;
  color:var(--text-muted);
  font-size:12px;
}
.ai-image-actions{
  margin-top:10px;
  gap:8px;
  justify-content:flex-end;
}
.ai-image-actions button{
  height:34px;
  padding:0 12px;
  border-radius:8px;
  border:1px solid rgba(18,21,19,.12);
  background:#fff;
  color:#121513;
  font-size:12px;
  font-weight:800;
  cursor:pointer;
  transition:background .18s ease,border-color .18s ease;
}
.ai-image-actions button:first-child{
  background:#121513;
  color:var(--accent);
  border-color:#121513;
}
.ai-image-actions button:hover{border-color:rgba(131,169,20,.45)}
.ai-image-actions button:disabled{
  cursor:not-allowed;
  opacity:.68;
}
.ai-input-area textarea{min-height:96px;max-height:180px;resize:vertical;margin-bottom:10px}
.ai-actions{display:flex;gap:10px;justify-content:flex-end;flex-wrap:wrap}
.ai-actions .btn{padding:10px 14px;font-size:13px}

/* ==================== Utils ==================== */
.text-center{text-align:center}
.mt-12{margin-top:12px}.mt-16{margin-top:16px}
.switch-link{color:var(--accent-dark);cursor:pointer;font-weight:600;transition:color .18s}
.switch-link:hover{color:var(--accent-hover);text-decoration:underline}
.dropdown-divider{height:1px;background:var(--border);margin:4px 6px}

/* ==================== Toast ==================== */
.toast{
  position:fixed;top:22px;right:22px;z-index:99999;
  padding:13px 20px;border-radius:var(--r-md);
  font-size:13px;font-weight:600;max-width:340px;
  box-shadow:0 8px 28px rgba(0,0,0,.14);
  display:none;animation:toastIn .28s ease;
}
.toast.show{display:block}
.toast-success{background:#16a34a;color:#fff}
.toast-error{background:var(--error);color:#fff}
.toast-info{background:var(--accent-dark);color:#fff}

/* ==================== Spinner ==================== */
.spinner{
  display:inline-block;width:18px;height:18px;
  border:2.5px solid rgba(26,16,0,.2);
  border-top-color:rgba(26,16,0,.8);
  border-radius:50%;animation:spin .6s linear infinite;
  vertical-align:middle;
}

/* ==================== Animations ==================== */
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes modalIn{from{opacity:0;transform:translateY(-14px) scale(.97)}to{opacity:1;transform:none}}
@keyframes toastIn{from{opacity:0;transform:translateY(-16px)}to{opacity:1;transform:none}}
@keyframes fadeUp{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}

/* ==================== Responsive ==================== */
@media(max-width:1100px){
  .gen-grid{grid-template-columns:1fr}
  .batch-setting-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .batch-task-grid{grid-template-columns:1fr}
  .hero h1{font-size:36px}
  .stats-strip{gap:40px;flex-wrap:wrap}
}
@media(max-width:768px){
  .nav-inner{height:auto;min-height:58px;flex-direction:column;align-items:flex-start;padding:10px 16px;gap:6px}
  .nav-links{width:100%;gap:2px;flex-wrap:wrap}
  .credits-badge{align-self:flex-start}
  .main{padding:24px 0 60px}
  .hero{margin-bottom:24px}
  .hero h1{font-size:27px;line-height:1.18;max-width:100%}
  .hero p{font-size:15px}
  .tool-switch{margin-left:16px;margin-right:16px;width:calc(100% - 32px);max-width:calc(100% - 32px);padding:6px;overflow:visible}
  .mode-tabs{gap:6px}
  .mode-tab{min-height:46px;font-size:12.5px;padding:10px 6px;white-space:nowrap;gap:5px}
  .mode-icon{font-size:15px}
  .mode-badge{top:-15px;right:-5px;padding:3px 6px;font-size:10px}
  .gen-grid{padding:0 16px;gap:16px}
  .batch-panel{padding:0 16px 54px}
  .batch-settings{padding:18px}
  .batch-settings-head,.batch-toolbar{align-items:stretch;flex-direction:column}
  .batch-primary-btn{width:100%}
  .batch-setting-grid{grid-template-columns:1fr}
  .batch-toolbar-actions{justify-content:stretch}
  .batch-toolbar-actions button{flex:1 1 150px}
  .batch-task-grid{gap:16px}
  .batch-task-body{grid-template-columns:1fr}
  .batch-preview{min-height:160px}
  .card{padding:18px;border-radius:var(--r-lg)}
  .upload-grid{grid-template-columns:repeat(2,minmax(0,1fr));padding:10px}
  .model-grid{grid-template-columns:1fr}
  .resolution-row{grid-template-columns:repeat(2,minmax(0,1fr))}
  .result-area{min-height:280px;padding:18px}
  .auth-layout{grid-template-columns:1fr;gap:16px}
  .auth-copy{padding:0}
  .auth-copy strong{font-size:20px}
  .inline-header{padding:16px 20px}
  .inline-body{padding:18px 20px 22px}
  .form-row{flex-direction:column}
  .code-btn{width:100%;min-width:auto}
  .auth-modal{padding:12px}
  .auth-modal-card{border-radius:var(--r-lg)}
  .stats-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
  .stats-strip strong{font-size:24px}
  .ratio-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
  .count-row{grid-template-columns:1fr;gap:7px}
  .advanced-param-row{grid-template-columns:1fr}
  .prompt-tools-row{align-items:flex-start;flex-direction:column}
  .prompt-actions{position:static;padding:0 10px 10px;justify-content:flex-start;flex-wrap:wrap;pointer-events:auto}
  .prompt-box textarea{padding-bottom:14px}
  .guest-cta-note{align-items:flex-start;flex-direction:column}
  .guest-cta-note button{width:100%}
}

/* ==================== Premium Redesign Layer ==================== */
:root{
  --bg:#f4f5f1;
  --bg-subtle:#eef0ea;
  --bg-section:#e8ebe3;
  --card-bg:rgba(255,255,252,.82);
  --text-primary:#121513;
  --text-secondary:#4c534e;
  --text-muted:#858c86;
  --accent:#c8f24a;
  --accent-dark:#83a914;
  --accent-hover:#b5df38;
  --accent-light:#effbc2;
  --accent-pale:#f6ffd9;
  --border:rgba(18,21,19,.12);
  --border-accent:rgba(131,169,20,.34);
  --shadow-sm:0 1px 2px rgba(25,31,26,.04),0 10px 30px rgba(25,31,26,.06);
  --shadow-md:0 18px 55px rgba(25,31,26,.10);
  --shadow-lg:0 28px 80px rgba(25,31,26,.16);
  --shadow-glow:0 20px 70px rgba(200,242,74,.30);
  --r-xs:4px;--r-sm:6px;--r-md:8px;--r-lg:8px;--r-xl:8px;--r-full:9999px;
  --ease:cubic-bezier(.2,.8,.2,1);
}

html{scroll-behavior:smooth}
body{
  background:
    linear-gradient(90deg,rgba(18,21,19,.035) 1px,transparent 1px),
    linear-gradient(180deg,rgba(18,21,19,.03) 1px,transparent 1px),
    radial-gradient(1200px 560px at 70% -18%,rgba(200,242,74,.18),transparent 60%),
    var(--bg);
  background-size:34px 34px,34px 34px,auto,auto;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:-1;
  opacity:.44;
  background:
    repeating-linear-gradient(115deg,rgba(18,21,19,.018) 0,rgba(18,21,19,.018) 1px,transparent 1px,transparent 9px);
}

.nav{
  background:rgba(244,245,241,.78);
  border-bottom:1px solid rgba(18,21,19,.08);
  box-shadow:0 1px 0 rgba(255,255,255,.74) inset;
}
.nav-inner{height:72px;max-width:1440px;padding:0 34px}
.nav-brand{
  font-size:19px;
  letter-spacing:0;
}
.nav-brand::before{
  content:"AI";
  width:34px;height:34px;border-radius:8px;
  display:inline-flex;align-items:center;justify-content:center;
  background:#121513;color:var(--accent);
  font-size:11px;font-weight:900;letter-spacing:.08em;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.16),0 12px 28px rgba(18,21,19,.14);
}
.nav-links>span,.user-btn{
  border:1px solid transparent;
  color:#343a36;
}
.nav-links>span:hover,.user-btn:hover{
  background:rgba(255,255,252,.74);
  border-color:rgba(18,21,19,.08);
}

.main{padding:48px 0 88px}
.hero{
  position:relative;
  max-width:1220px;
  text-align:left;
  margin:0 auto 34px;
  padding:34px 34px 12px;
}
.hero::after{
  content:"IMAGE LAB";
  position:absolute;
  right:34px;
  top:18px;
  color:rgba(18,21,19,.06);
  font-size:clamp(38px,8vw,112px);
  font-weight:950;
  letter-spacing:.02em;
  line-height:.8;
  pointer-events:none;
}
.hero h1{
  position:relative;
  z-index:1;
  max-width:1040px;
  font-size:clamp(42px,5.2vw,70px);
  line-height:1.04;
  letter-spacing:0;
  margin-bottom:20px;
}
.hero h1 span{
  color:#121513;
  background:linear-gradient(180deg,transparent 58%,rgba(200,242,74,.82) 58%);
  -webkit-text-fill-color:currentColor;
}
.hero p{
  position:relative;
  z-index:1;
  margin:0;
  max-width:680px;
  color:#3e463f;
  font-size:17px;
  line-height:1.85;
}
.hero-badge{
  position:relative;
  z-index:1;
  border-radius:6px;
  border-color:rgba(18,21,19,.12);
  background:#121513;
  color:var(--accent);
  letter-spacing:.03em;
  box-shadow:0 14px 40px rgba(18,21,19,.14);
}

.tool-switch{
  background:rgba(255,255,252,.84);
  border-color:rgba(18,21,19,.10);
  border-radius:12px;
  box-shadow:0 18px 55px rgba(25,31,26,.10),inset 0 1px 0 rgba(255,255,255,.86);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
}
.mode-tab{
  border-radius:12px;
  color:#5b625c;
}
.mode-tab.active{
  background:#121513;
  color:var(--accent);
  box-shadow:0 16px 36px rgba(18,21,19,.18),inset 0 0 0 1px rgba(255,255,255,.12);
}

.gen-grid{
  grid-template-columns:minmax(250px,.92fr) minmax(360px,1.05fr) minmax(280px,.9fr);
  gap:24px;
  max-width:1440px;
  padding:0 34px;
  align-items:stretch;
}
.card{
  position:relative;
  isolation:isolate;
  overflow:hidden;
  background:var(--card-bg);
  border-color:rgba(18,21,19,.10);
  box-shadow:var(--shadow-sm);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  transform:translateY(0);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease),background .28s var(--ease);
}
.gen-grid>.card{
  height:100%;
  min-height:0;
}
.gen-grid>.card:nth-child(1),
.gen-grid>.card:nth-child(3){
  display:flex;
  flex-direction:column;
}
.gen-grid>.card:nth-child(1) .card-title:nth-of-type(2){
  margin-top:20px;
}
#histArea{
  flex:1 1 auto;
  min-height:0;
  overflow-y:auto;
  padding-right:4px;
  overscroll-behavior:contain;
}
.gen-grid>.card:nth-child(3) .result-area{
  flex:1 1 auto;
}
.card::before{
  content:"";
  position:absolute;
  inset:0;
  z-index:-1;
  opacity:0;
  background:radial-gradient(520px circle at var(--mx,50%) var(--my,0%),rgba(200,242,74,.18),transparent 46%);
  transition:opacity .28s var(--ease);
}
.card:hover{
  transform:translateY(-4px);
  border-color:rgba(131,169,20,.28);
  box-shadow:var(--shadow-md);
}
.card:hover::before{opacity:1}
.gen-grid>.card:nth-child(2){
  background:linear-gradient(180deg,rgba(255,255,252,.92),rgba(248,250,241,.88));
  border-color:rgba(131,169,20,.30);
  box-shadow:0 24px 70px rgba(25,31,26,.12);
}
.card-title{
  font-size:17px;
  letter-spacing:0;
}
.param-label{
  color:#717970;
  letter-spacing:.02em;
  text-transform:none;
}
.param-title{
  font-size:18px;
  font-weight:850;
}

input,textarea,select{
  background:rgba(255,255,252,.78);
  border-color:rgba(18,21,19,.12);
  border-radius:8px;
}
input:focus,textarea:focus,select:focus{
  border-color:rgba(131,169,20,.78);
  box-shadow:0 0 0 4px rgba(200,242,74,.26);
}
.model-option,.resolution-option,.ratio-option,.upload-slot{
  border-radius:8px;
  background:rgba(255,255,252,.68);
  border-color:rgba(18,21,19,.12);
  color:#303730;
}
.model-option:hover,.resolution-option:hover,.ratio-option:hover,.upload-slot:hover{
  border-color:rgba(131,169,20,.46);
  background:rgba(246,255,217,.86);
}
.model-option.active,.resolution-option.active,.ratio-option.active{
  background:#121513;
  border-color:#121513;
  color:var(--accent);
  box-shadow:0 14px 34px rgba(18,21,19,.16);
}
.ratio-option.active .ratio-box{border-color:var(--accent)}
.upload-grid{
  border-color:rgba(18,21,19,.10);
  background:rgba(238,240,234,.62);
}
.is-guest .upload-slot::after{
  background:#121513;
  color:var(--accent);
}

.prompt-mode-tip{
  background:#121513;
  border-color:#121513;
  color:var(--accent);
  border-radius:8px;
}
.prompt-box{
  border-color:#121513;
  border-radius:8px;
  box-shadow:0 16px 44px rgba(18,21,19,.08);
}
.prompt-action,.ai-helper-btn,.limit-btn{
  border-radius:6px;
  background:rgba(255,255,252,.86);
  border-color:rgba(18,21,19,.12);
  color:#303730;
}
.ai-helper-btn:hover,.limit-btn:hover,.prompt-action:hover{
  border-color:rgba(131,169,20,.42);
  background:var(--accent-pale);
  color:#121513;
}
.prompt-action.clear{color:#aa2d2d;border-color:rgba(170,45,45,.22)}
.guest-cta-note{
  border-radius:8px;
  background:rgba(255,255,252,.74);
  border-color:rgba(18,21,19,.10);
}
.guest-cta-note button,.btn-login-required{
  background:#121513;
  color:var(--accent);
}
.btn-primary{
  background:var(--accent);
  color:#121513;
  border-radius:8px;
  box-shadow:0 18px 44px rgba(131,169,20,.22);
}
.btn-primary:hover:not(:disabled){
  background:var(--accent-hover);
  box-shadow:0 22px 54px rgba(131,169,20,.28);
}

.status-box{
  border-radius:8px;
  background:rgba(255,255,252,.68);
}
.result-area{
  position:relative;
  min-height:430px;
  border-radius:8px;
  background:
    linear-gradient(90deg,rgba(18,21,19,.035) 1px,transparent 1px),
    linear-gradient(180deg,rgba(18,21,19,.035) 1px,transparent 1px),
    rgba(238,240,234,.68);
  background-size:28px 28px;
}
.result-area::before{
  content:"";
  position:absolute;
  inset:18px;
  border:1px dashed rgba(18,21,19,.12);
  border-radius:8px;
  pointer-events:none;
}
.result-placeholder .icon{
  width:54px;
  height:54px;
  margin:0 auto 14px;
  border-radius:8px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:#121513;
  color:var(--accent);
  font-size:12px;
  font-weight:900;
  letter-spacing:.12em;
  opacity:1;
  filter:none;
}
.result-area.has-img{
  background:rgba(246,255,217,.74);
  box-shadow:var(--shadow-glow);
}
.result-area.is-generating{
  align-items:center;
  justify-content:center;
  background:
    linear-gradient(90deg,rgba(18,21,19,.04) 1px,transparent 1px),
    linear-gradient(180deg,rgba(18,21,19,.04) 1px,transparent 1px),
    rgba(238,240,234,.78);
  background-size:28px 28px;
  border-color:rgba(131,169,20,.46);
  box-shadow:0 22px 70px rgba(18,21,19,.10),0 0 0 1px rgba(131,169,20,.10) inset;
}
.generation-loading{
  position:relative;
  z-index:1;
  width:min(100%,420px);
  min-height:260px;
  padding:30px 28px;
  border-radius:8px;
  background:#121513;
  color:#f8faf1;
  border:1px solid rgba(246,255,217,.16);
  box-shadow:0 26px 60px rgba(18,21,19,.22);
  display:flex;
  flex-direction:column;
  align-items:stretch;
  justify-content:center;
  overflow:hidden;
}
.generation-loading::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(120deg,transparent,rgba(199,239,69,.12),transparent);
  transform:translateX(-100%);
  animation:generationSweep 2.8s ease-in-out infinite;
  pointer-events:none;
}
.generation-orbit{
  position:relative;
  z-index:1;
  width:68px;
  height:68px;
  margin:0 auto 22px;
}
.generation-orbit span{
  position:absolute;
  inset:0;
  border:1px solid rgba(199,239,69,.24);
  border-top-color:var(--accent);
  border-radius:50%;
  animation:generationSpin 1.5s linear infinite;
}
.generation-orbit span:nth-child(2){
  inset:10px;
  animation-duration:2.1s;
  animation-direction:reverse;
  opacity:.76;
}
.generation-orbit span:nth-child(3){
  inset:22px;
  background:var(--accent);
  border-color:var(--accent);
  box-shadow:0 0 28px rgba(199,239,69,.55);
  animation:generationPulse 1.4s ease-in-out infinite;
}
.generation-copy{
  position:relative;
  z-index:1;
  text-align:center;
}
.generation-kicker{
  color:var(--accent);
  font-size:12px;
  font-weight:800;
  line-height:1.2;
  letter-spacing:0;
  margin-bottom:8px;
}
.generation-title{
  color:#fff;
  font-size:20px;
  font-weight:900;
  line-height:1.25;
  margin-bottom:8px;
}
.generation-subtitle{
  max-width:310px;
  margin:0 auto;
  color:rgba(248,250,241,.68);
  font-size:13px;
  line-height:1.7;
}
.generation-progress-track{
  position:relative;
  z-index:1;
  height:10px;
  margin-top:24px;
  border-radius:999px;
  background:rgba(255,255,255,.10);
  overflow:hidden;
}
.generation-progress-bar{
  width:0;
  height:100%;
  border-radius:999px;
  background:linear-gradient(90deg,var(--accent),#f1ff99);
  box-shadow:0 0 24px rgba(199,239,69,.46);
  transition:width .45s ease;
}
.generation-progress-meta{
  position:relative;
  z-index:1;
  display:flex;
  justify-content:space-between;
  gap:14px;
  margin-top:10px;
  color:rgba(248,250,241,.70);
  font-size:12px;
  font-variant-numeric:tabular-nums;
}
.generation-cancel-btn{
  position:relative;
  z-index:1;
  margin:22px auto 0;
  min-width:112px;
  height:38px;
  border-radius:8px;
  border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.06);
  color:#f8faf1;
  font-size:13px;
  font-weight:800;
  cursor:pointer;
  transition:background .18s ease,border-color .18s ease,transform .18s ease;
}
.generation-cancel-btn:hover{
  background:rgba(239,68,68,.16);
  border-color:rgba(239,68,68,.38);
  transform:translateY(-1px);
}
.generation-message{
  position:relative;
  z-index:1;
  width:min(100%,340px);
  padding:24px;
  border-radius:8px;
  background:rgba(255,255,252,.84);
  border:1px solid rgba(18,21,19,.10);
  color:#121513;
  text-align:center;
  box-shadow:0 18px 46px rgba(18,21,19,.08);
}
.generation-message strong{
  display:block;
  margin-bottom:8px;
  font-size:18px;
  line-height:1.3;
}
.generation-message span{
  display:block;
  color:var(--text-secondary);
  font-size:13px;
  line-height:1.7;
}
.generation-message-error{border-color:rgba(239,68,68,.28)}
.generation-message-cancelled{border-color:rgba(131,169,20,.30)}
@keyframes generationSpin{to{transform:rotate(360deg)}}
@keyframes generationPulse{0%,100%{transform:scale(.82);opacity:.7}50%{transform:scale(1);opacity:1}}
@keyframes generationSweep{0%{transform:translateX(-100%)}52%,100%{transform:translateX(100%)}}

.stats-strip{
  max-width:1160px;
  gap:0;
  justify-content:space-between;
  border-top-color:rgba(18,21,19,.10);
}
.stats-strip>div{
  min-width:180px;
  text-align:left;
}
.stats-strip strong{
  color:#121513;
  font-variant-numeric:tabular-nums;
}
.site-footer{color:#737b74}

.auth-modal,.expand-modal{backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}
.auth-modal-card,.expand-modal-card,.ai-drawer{
  border-radius:8px;
  background:rgba(255,255,252,.96);
}
.auth-form{border-radius:8px;background:rgba(238,240,234,.62)}
.ai-drawer-header{background:linear-gradient(180deg,#f8faf1,#fff)}
.ai-msg-user{background:#121513;color:var(--accent)}

@keyframes entrance-rise{
  from{opacity:0;transform:translateY(18px)}
  to{opacity:1;transform:translateY(0)}
}
.hero,.tool-switch,.gen-grid>.card,.stats-strip{
  animation:entrance-rise .7s var(--ease) both;
}
.tool-switch{animation-delay:.08s}
.gen-grid>.card:nth-child(1){animation-delay:.14s}
.gen-grid>.card:nth-child(2){animation-delay:.2s}
.gen-grid>.card:nth-child(3){animation-delay:.26s}
.stats-strip{animation-delay:.32s}

@media(max-width:1100px){
  .gen-grid{grid-template-columns:1fr}
  .hero{text-align:center;padding-top:22px}
  .hero::after{left:0;right:0;text-align:center;top:6px}
  .hero p{margin:0 auto}
}
@media(max-width:768px){
  .nav-inner{padding:10px 18px}
  .main{padding-top:18px}
  .hero{padding:22px 20px 4px}
  .hero::after{display:none}
  .hero h1{font-size:30px;line-height:1.06}
  .hero p{font-size:14px;line-height:1.72}
  .gen-grid{padding:0 12px;gap:14px}
  .card{padding:16px}
  .upload-grid{gap:8px}
  .result-area{min-height:300px}
  .stats-strip{grid-template-columns:repeat(3,minmax(0,1fr));padding:28px 20px 0}
  .stats-strip>div{text-align:center;min-width:0}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.01ms!important;
    animation-iteration-count:1!important;
    scroll-behavior:auto!important;
    transition-duration:.01ms!important;
  }
  .card:hover{transform:none}
}

/* ==================== Navigation Refinement ==================== */
.nav{
  padding:12px 18px 0;
  background:linear-gradient(180deg,rgba(244,245,241,.94),rgba(244,245,241,.58));
  border-bottom:0;
}
.nav::after{
  content:"";
  display:block;
  max-width:1440px;
  height:1px;
  margin:12px auto 0;
  background:linear-gradient(90deg,transparent,rgba(18,21,19,.12),transparent);
}
.nav-inner{
  height:60px;
  border:1px solid rgba(18,21,19,.10);
  border-radius:12px;
  background:rgba(255,255,252,.72);
  box-shadow:0 18px 60px rgba(25,31,26,.08),inset 0 1px 0 rgba(255,255,255,.76);
  backdrop-filter:blur(22px) saturate(135%);
  -webkit-backdrop-filter:blur(22px) saturate(135%);
}
.nav-brand{
  min-width:0;
  padding-right:18px;
}
.nav-brand::after{
  content:"创作台";
  margin-left:10px;
  padding:5px 8px;
  border-radius:6px;
  background:rgba(200,242,74,.18);
  color:#5f7d09;
  font-size:11px;
  font-weight:850;
  letter-spacing:.04em;
}
.nav-links{
  gap:10px;
  margin-left:auto;
}
.nav-group{
  display:flex;
  align-items:center;
  gap:3px;
  padding:4px;
  border:1px solid rgba(18,21,19,.08);
  border-radius:10px;
  background:rgba(244,245,241,.58);
}
.nav-account{
  gap:8px;
}
.nav-group>span,.nav-account+.user-dropdown .user-btn{
  min-height:34px;
}
.nav-links>span,.nav-group>span,.user-btn{
  position:relative;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  user-select:none;
  -webkit-user-select:none;
  padding:8px 12px;
  border-radius:8px;
  font-size:13px;
}
.nav-info>span::before{
  content:"";
  width:5px;
  height:5px;
  margin-right:7px;
  border-radius:999px;
  background:rgba(18,21,19,.24);
  transition:background .18s var(--ease),transform .18s var(--ease);
}
.nav-info>span:hover::before{
  background:var(--accent-dark);
  transform:scale(1.35);
}
#loginBtn{
  color:#121513;
  min-width:68px;
  padding-left:16px;
  padding-right:16px;
}
#registerBtn,#redeemBtn{
  min-width:76px;
  padding-left:18px;
  padding-right:18px;
  background:#121513;
  color:var(--accent);
  box-shadow:0 10px 26px rgba(18,21,19,.14);
}
#registerBtn:hover,#redeemBtn:hover{
  background:#1d231f;
  color:var(--accent);
  transform:translateY(-1px);
}
.credits-badge{
  border-radius:8px;
  background:#121513;
  color:var(--accent);
  border-color:#121513;
}
.user-dropdown{
  border:1px solid rgba(18,21,19,.08);
  border-radius:10px;
  padding:4px;
  background:rgba(244,245,241,.58);
}
.user-btn{
  min-height:34px;
}

@media(max-width:900px){
  .nav{
    padding:8px 10px 0;
  }
  .nav-inner{
    height:auto;
    min-height:0;
    padding:10px;
    gap:10px;
  }
  .nav-brand::after{display:none}
  .nav-links{
    width:100%;
    display:grid;
    grid-template-columns:1fr;
    gap:8px;
  }
  .nav-group{
    width:100%;
    justify-content:space-between;
  }
  .nav-group>span{
    flex:1 1 0;
    padding-left:8px;
    padding-right:8px;
  }
}

@media(max-width:480px){
  .nav-brand{
    font-size:17px;
  }
  .nav-info>span::before{display:none}
  .nav-links>span,.nav-group>span,.user-btn{
    font-size:12.5px;
  }
  .batch-task-card{padding:14px}
  .batch-ref-grid button{min-height:50px}
  .batch-mini-controls{grid-template-columns:1fr 1fr}
  .batch-task-actions{grid-template-columns:1fr}
}