/* ============ AI Image Generator · 简约深色主题（移动端优先） ============ */
:root{
  --bg:#0e1319;
  --card:#161d25;
  --input:#0d1218;
  --line:#26303c;
  --line2:#33405263;
  --text:#e9eef5;
  --muted:#8b96a5;
  --muted2:#5d6878;
  --blue:#2f7bff;
  --blue-dark:#1f66e0;
  --ok:#34d399;
  --warn:#fbbf24;
  --err:#f87171;
  --r-lg:16px;
  --r-md:12px;
  --font:"Noto Sans SC",system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--text);
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
  -webkit-tap-highlight-color:transparent;
}
::selection{background:rgba(47,123,255,.4)}
/* 顶部极光氛围（极淡，不喧宾夺主） */
body::before{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(480px 240px at 12% -60px, rgba(47,123,255,.13), transparent 70%),
    radial-gradient(420px 220px at 88% -40px, rgba(56,189,248,.09), transparent 70%);
}
html[data-theme="light"] body::before{
  background:
    radial-gradient(480px 240px at 12% -60px, rgba(47,123,255,.10), transparent 70%),
    radial-gradient(420px 220px at 88% -40px, rgba(14,165,233,.08), transparent 70%);
}
::-webkit-scrollbar{width:8px}
::-webkit-scrollbar-thumb{background:#2a3441;border-radius:6px}

.app{max-width:560px;margin:0 auto;padding:20px 16px 56px}

/* 顶部 */
.http-warn{
  background:rgba(251,191,36,.1);border:1px solid rgba(251,191,36,.4);color:#f5c96b;
  font-size:13px;line-height:1.7;border-radius:var(--r-md);padding:11px 14px;margin-bottom:14px;
}
.http-warn[hidden]{display:none}
.header{text-align:center;padding:16px 0 20px}
.logo{
  width:46px;height:46px;margin:0 auto 12px;border-radius:15px;
  background:linear-gradient(135deg,#5b95ff,#2f7bff 55%,#1f66e0);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 22px rgba(47,123,255,.42),inset 0 1px 0 rgba(255,255,255,.32);
}
.header h1{
  font-size:25px;font-weight:700;letter-spacing:.02em;
  background:linear-gradient(115deg,#9dc0ff 0%,#2f7bff 55%,#38bdf8 100%);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
}
html[data-theme="light"] .header h1{
  background:linear-gradient(115deg,#1f66e0,#2f7bff 55%,#0ea5e9);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
}
.status{
  display:inline-flex;align-items:center;gap:7px;margin-top:11px;
  font-size:12.5px;color:var(--muted);
  border:1px solid var(--line);background:var(--card);border-radius:999px;padding:6px 14px;
  box-shadow:0 2px 8px rgba(0,0,0,.16);
}
.dot{width:8px;height:8px;border-radius:50%;background:var(--muted2)}
.dot.ok{background:var(--ok);box-shadow:0 0 8px var(--ok)}
.dot.bad{background:var(--warn)}

/* 卡片 */
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:18px;
  padding:18px;
  margin-bottom:14px;
  box-shadow:0 12px 32px rgba(0,0,0,.30),inset 0 1px 0 rgba(255,255,255,.045);
}

/* 模式切换 */
.seg{display:grid;grid-template-columns:1fr 1fr;background:var(--input);border:1px solid var(--line);border-radius:var(--r-md);padding:4px;gap:4px;margin-bottom:16px}
.seg button{border:0;background:transparent;color:var(--muted);font-family:var(--font);font-size:14px;font-weight:500;padding:10px;border-radius:9px;cursor:pointer;transition:all .2s}
.seg button.active{background:var(--blue);color:#fff;box-shadow:0 4px 12px rgba(47,123,255,.4)}

/* 表单 */
.field{display:block;margin-bottom:14px}
.field:last-child{margin-bottom:0}
.field > span{display:block;font-size:13px;color:var(--muted);margin-bottom:8px}
.field > span:only-child{margin-bottom:0}
input[type=text],input[type=password],input[type=url],input[type=number],input:not([type]),select,textarea{
  width:100%;background:var(--input);border:1px solid var(--line);border-radius:var(--r-md);
  color:var(--text);font-family:var(--font);font-size:15px;padding:12px 14px;outline:none;
  transition:border-color .18s,box-shadow .18s;
}
textarea{resize:vertical;min-height:120px;line-height:1.7}
input:focus,select:focus,textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(47,123,255,.18)}
input::placeholder,textarea::placeholder{color:var(--muted2)}
select{
  appearance:none;-webkit-appearance:none;cursor:pointer;padding-right:38px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%238b96a5' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 15px center;
}
select option{background:#161d25}
select[hidden],input[hidden]{display:none}
#authRows[hidden]{display:none}

.remember{display:flex;align-items:center;gap:9px;font-size:13px;color:var(--muted);cursor:pointer;margin:2px 0 4px;user-select:none}
.remember input{position:absolute;opacity:0;pointer-events:none}
.remember i{width:18px;height:18px;border-radius:6px;border:1.5px solid var(--line);background:var(--input);position:relative;flex-shrink:0;transition:all .18s}
.remember input:checked + i{background:var(--blue);border-color:var(--blue)}
.remember input:checked + i::after{content:"";position:absolute;left:5.5px;top:2px;width:5px;height:9px;border:solid #fff;border-width:0 2px 2px 0;transform:rotate(42deg)}

.note{font-size:12.5px;color:var(--muted2);line-height:1.7;margin-top:10px}
.note.ok{color:var(--ok)}
.note.warn{color:#d8a93f}
.note[hidden]{display:none}
#demoNote[hidden]{display:none}

.row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.row2 .field{margin-bottom:14px}
.seed-row{display:flex;gap:8px}
.seed-row input{flex:1;min-width:0}
.btn-mini{
  flex-shrink:0;border:1px solid var(--line);background:var(--input);color:var(--muted);
  font-family:var(--font);font-size:13px;padding:0 16px;border-radius:var(--r-md);cursor:pointer;
}
.btn-mini:active{background:#1c2530;color:var(--text)}
.btn-mini.danger{color:var(--err);border-color:rgba(248,113,113,.45)}
.btn-mini.danger:active{background:rgba(248,113,113,.12);color:var(--err)}

/* 自定义接口多配置管理 */
#customApiBox[hidden]{display:none}
.api-top{display:flex;gap:8px;align-items:flex-end;margin-bottom:14px}
.api-top .field{flex:1;margin-bottom:0;min-width:0}
.api-top .btn-mini{flex-shrink:0;height:47px;padding:0 18px;font-size:13.5px}
.api-panel{
  border:1px dashed var(--line);border-radius:var(--r-md);
  padding:14px;margin-bottom:14px;background:rgba(47,123,255,.045);
  animation:fadeUp .25s ease both;
}
.api-panel[hidden]{display:none}
.api-actions{display:flex;gap:8px;margin:2px 0 4px}
.api-actions .btn-mini{padding:9px 16px}
.api-panel .note{margin-top:8px}

/* 高级参数 */
.adv{border-top:1px solid var(--line);margin:2px 0 16px;padding-top:4px}
.adv summary{cursor:pointer;font-size:13.5px;color:var(--muted);padding:12px 2px;list-style:none;display:flex;align-items:center;gap:8px;user-select:none}
.adv summary::-webkit-details-marker{display:none}
.adv summary::after{content:"";width:8px;height:8px;border-right:2px solid var(--muted2);border-bottom:2px solid var(--muted2);transform:rotate(45deg);transition:transform .2s}
.adv[open] summary::after{transform:rotate(225deg)}
.adv .field:first-of-type{margin-top:6px}
#stabilityParams[hidden]{display:none}

/* 主按钮 */
.btn-primary{
  width:100%;border:0;border-radius:14px;padding:15px;cursor:pointer;
  font-family:var(--font);font-size:16px;font-weight:700;letter-spacing:.12em;color:#fff;
  background:linear-gradient(180deg,#4d8fff 0%,#2f7bff 48%,#1e63dd 100%);
  box-shadow:0 10px 26px rgba(47,123,255,.42),inset 0 1px 0 rgba(255,255,255,.30),inset 0 -2px 6px rgba(9,30,80,.18);
  transition:transform .12s,filter .18s,opacity .18s,box-shadow .2s;
}
.btn-primary:hover:not(:disabled){filter:brightness(1.06);box-shadow:0 12px 30px rgba(47,123,255,.5),inset 0 1px 0 rgba(255,255,255,.30)}
.btn-primary:active:not(:disabled){transform:scale(.985);filter:brightness(1.1)}
.btn-primary:disabled{opacity:.6;cursor:wait}

/* 错误框 */
.err-box{
  margin-top:12px;font-size:13px;line-height:1.75;color:#f3b0b0;
  background:rgba(248,113,113,.09);border:1px solid rgba(248,113,113,.35);
  border-radius:var(--r-md);padding:12px 14px;word-break:break-word;
}
.err-box[hidden]{display:none}

/* 结果区 */
.preview-head{display:flex;align-items:center;gap:9px;margin:22px 4px 12px}
.preview-head h2{font-size:15px;font-weight:700}
.count{font-size:12px;color:#fff;background:var(--blue);border-radius:999px;min-width:22px;height:22px;display:inline-flex;align-items:center;justify-content:center;padding:0 7px}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.empty{
  grid-column:1/-1;border:1.5px dashed var(--line);border-radius:var(--r-lg);
  padding:44px 20px;text-align:center;color:var(--muted2);
}
.empty p{margin-top:12px;font-size:14px;color:var(--muted);line-height:2}
.empty p span{font-size:12.5px;color:var(--muted2)}

.shot{background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden;animation:fadeUp .45s ease both;box-shadow:0 8px 20px rgba(0,0,0,.28)}
@media (hover:hover){
  .shot{transition:transform .2s ease,box-shadow .2s ease}
  .shot:hover{transform:translateY(-3px);box-shadow:0 16px 34px rgba(0,0,0,.38)}
}
@keyframes fadeUp{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.shot img{width:100%;aspect-ratio:1/1;object-fit:cover;display:block;background:#0a0e13}
.shot-bar{display:flex;border-top:1px solid var(--line)}
.shot-bar button{
  flex:1;border:0;background:transparent;color:var(--muted);font-family:var(--font);font-size:12.5px;
  padding:10px 0;cursor:pointer;transition:all .15s;
}
.shot-bar button + button{border-left:1px solid var(--line)}
.shot-bar button:active{background:#1d2530;color:var(--text)}
.shot-bar button.del:active{color:var(--err)}
.shot.loading .shot-img{position:relative;aspect-ratio:1/1;background:#111823;overflow:hidden}
.shot.loading .shot-img::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,transparent 30%,rgba(255,255,255,.08) 50%,transparent 70%);animation:shimmer 1.3s infinite}
@keyframes shimmer{from{transform:translateX(-100%)}to{transform:translateX(100%)}}

/* 灯箱 */
.lightbox{position:fixed;inset:0;z-index:100;background:rgba(5,8,12,.94);display:flex;flex-direction:column;align-items:center;justify-content:center;padding:30px 18px;gap:12px}
.lightbox[hidden]{display:none}
.lightbox img{max-width:94vw;max-height:78vh;border-radius:12px;box-shadow:0 24px 70px rgba(0,0,0,.7)}
.lightbox p{color:var(--muted);font-size:13px;max-width:90vw;text-align:center;line-height:1.8}
.lightbox-close{position:absolute;top:18px;right:18px;width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:rgba(255,255,255,.07);color:#fff;font-size:16px;cursor:pointer}

/* 提示 toast */
.toasts{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);z-index:120;display:flex;flex-direction:column;gap:8px;align-items:center;width:max-content;max-width:92vw}
.toast{background:#1a2230;border:1px solid var(--line);color:var(--text);font-size:13.5px;padding:11px 18px;border-radius:12px;box-shadow:0 10px 30px rgba(0,0,0,.5);animation:toastIn .25s ease both;max-width:92vw;line-height:1.6}
.toast.err{border-color:rgba(248,113,113,.5)}
@keyframes toastIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.toast.out{opacity:0;transform:translateY(6px);transition:all .3s}

.footer{text-align:center;margin-top:34px;color:var(--muted2);font-size:12px;letter-spacing:.05em}
.hint-inline{font-size:11.5px;color:var(--muted2);font-weight:400}

/* ---------- 浅色模式 ---------- */
html[data-theme="light"]{
  --bg:#edf1f6;
  --card:#ffffff;
  --input:#f2f5f9;
  --line:#dfe7f0;
  --text:#182230;
  --muted:#5b6b80;
  --muted2:#93a1b5;
}
html[data-theme="light"] .card{box-shadow:0 10px 28px rgba(30,50,80,.10),inset 0 1px 0 rgba(255,255,255,.7)}
html[data-theme="light"] select option{background:#ffffff}
html[data-theme="light"] .err-box{color:#b42323;background:rgba(220,60,60,.07)}
html[data-theme="light"] .shot{background:#ffffff}
html[data-theme="light"] .toast{background:#ffffff}
html[data-theme="light"] .btn-primary{box-shadow:0 8px 20px rgba(47,123,255,.28)}
html[data-theme="light"] .theme-btn{box-shadow:0 4px 10px rgba(30,50,80,.12)}

/* ---------- 主题切换按钮 ---------- */
.header{position:relative}
.theme-btn{
  position:absolute;right:2px;top:4px;width:38px;height:38px;border-radius:50%;
  border:1px solid var(--line);background:var(--card);color:var(--muted);
  cursor:pointer;display:flex;align-items:center;justify-content:center;
  transition:transform .15s,color .2s;
}
.theme-btn:active{transform:scale(.92)}