/* ===== 咔咔二维码 · 卡通风格样式 ===== */
:root{
  --ink:#2b2b2b;
  --paper:#fffdf6;
  --pink:#ff6b9d;
  --yellow:#ffd93d;
  --mint:#4ecdc4;
  --blue:#5aa9ff;
  --purple:#a78bfa;
  --cream:#fff3d6;
  --line:3px solid var(--ink);
  --sh:6px 6px 0 var(--ink);
  --sh-sm:4px 4px 0 var(--ink);
  --font-fun:"Comic Sans MS","Chalkboard SE","YouYuan","幼圆","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:var(--font-fun);
  color:var(--ink);
  background:
    radial-gradient(circle at 12% 18%, #ffe3ef 0 22%, transparent 23%),
    radial-gradient(circle at 88% 12%, #d9f3ff 0 20%, transparent 21%),
    radial-gradient(circle at 78% 82%, #fff2c9 0 24%, transparent 25%),
    linear-gradient(160deg,#fffaf0 0%,#fff5f8 55%,#f2fbff 100%);
  background-attachment:fixed;
  min-height:100vh;
  overflow-x:hidden;
}

/* 背景气泡 */
.bg-deco{position:fixed;inset:0;pointer-events:none;z-index:0;overflow:hidden}
.bubble{position:absolute;border-radius:50%;border:3px solid rgba(43,43,43,.18);opacity:.55;animation:float 9s ease-in-out infinite}
.b1{width:90px;height:90px;left:4%;top:22%;background:rgba(255,217,61,.35)}
.b2{width:54px;height:54px;right:6%;top:38%;background:rgba(78,205,196,.3);animation-delay:1.2s}
.b3{width:130px;height:130px;left:42%;bottom:-40px;background:rgba(167,139,250,.22);animation-delay:.6s}
.b4{width:38px;height:38px;right:22%;bottom:14%;background:rgba(255,107,157,.28);animation-delay:2s}
.b5{width:66px;height:66px;left:14%;bottom:12%;background:rgba(90,169,255,.25);animation-delay:1.7s}
.b6{width:46px;height:46px;right:12%;top:8%;background:rgba(255,217,61,.4);animation-delay:.9s}
.twinkle{position:absolute;font-size:22px;opacity:.5;animation:spin 7s linear infinite}
.t1{left:8%;top:12%} .t2{right:16%;top:60%;animation-duration:9s} .t3{left:60%;top:6%;font-size:18px}
@keyframes float{0%,100%{transform:translateY(0) rotate(0)}50%{transform:translateY(-22px) rotate(6deg)}}
@keyframes spin{0%{transform:rotate(0) scale(1)}50%{transform:rotate(180deg) scale(1.15)}100%{transform:rotate(360deg) scale(1)}}

/* 布局 */
.page{position:relative;z-index:1;max-width:1220px;margin:0 auto;padding:22px 20px 40px}

/* 顶部 */
.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:22px}
.brand{display:flex;align-items:center;gap:14px}
.mascot{width:82px;height:82px;flex:none;animation:bob 3.4s ease-in-out infinite;filter:drop-shadow(3px 4px 0 rgba(43,43,43,.18))}
.site-logo{width:82px;height:82px;flex:none;object-fit:contain;background:#fff;
  border:3px solid var(--ink);border-radius:18px;box-shadow:3px 4px 0 rgba(43,43,43,.18)}
@keyframes bob{0%,100%{transform:translateY(0) rotate(-2deg)}50%{transform:translateY(-8px) rotate(2deg)}}
.brand-text h1{margin:0;font-size:34px;letter-spacing:1px;
  text-shadow:3px 3px 0 var(--yellow),5px 5px 0 rgba(43,43,43,.15)}
.brand-text p{margin:4px 0 0;font-size:14px;opacity:.72}
.top-actions{display:flex;gap:10px;flex-wrap:wrap}

/* 按钮 */
.btn{
  font-family:inherit;font-size:15px;font-weight:700;color:var(--ink);
  background:#fff;border:var(--line);border-radius:999px;
  padding:9px 18px;cursor:pointer;box-shadow:var(--sh-sm);
  transition:transform .12s ease,box-shadow .12s ease,background .2s;
}
.btn:hover{transform:translate(-1px,-2px);box-shadow:6px 7px 0 var(--ink)}
.btn:active{transform:translate(3px,4px);box-shadow:1px 1px 0 var(--ink)}
.btn-pink{background:var(--pink);color:#fff}
.btn-yellow{background:var(--yellow)}
.btn-blue{background:var(--blue);color:#fff}
.btn-mint{background:var(--mint);color:#fff}
.btn-ghost{background:#fff}
.btn.big{flex:1;padding:13px 10px;font-size:16px;min-width:118px}

/* 卡片 */
.card{
  background:var(--paper);border:var(--line);border-radius:22px;
  padding:18px 18px 20px;box-shadow:var(--sh);margin-bottom:18px;
}
.card-title{margin:0 0 14px;font-size:19px;display:flex;align-items:center;gap:9px}
.num{
  display:inline-flex;align-items:center;justify-content:center;
  width:27px;height:27px;border-radius:50%;background:var(--yellow);
  border:2.5px solid var(--ink);font-size:14px;
}
.mini-label{display:block;font-size:13px;font-weight:700;opacity:.78;margin-bottom:7px}
.mini-label b{background:var(--cream);border:2px solid var(--ink);border-radius:8px;padding:0 6px}

.layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.92fr);gap:22px;align-items:start}
.panel{max-width:100%}

/* Tabs */
.tabs{display:flex;gap:8px;margin-bottom:14px;flex-wrap:wrap}
.tab{
  font-family:inherit;font-size:14px;font-weight:700;cursor:pointer;
  background:#fff;border:2.5px solid var(--ink);border-radius:999px;padding:7px 14px;
  box-shadow:3px 3px 0 var(--ink);transition:.15s;
}
.tab:hover{transform:translate(-1px,-1px)}
.tab.is-on{background:var(--mint);color:#fff;transform:translate(1px,2px);box-shadow:1px 1px 0 var(--ink)}

/* 表单 */
.field{margin-bottom:4px}
.field.hidden{display:none}
label{display:block;font-size:14px;font-weight:700;margin-bottom:6px}
input[type=text],textarea,select{
  width:100%;font-family:inherit;font-size:15px;color:var(--ink);
  background:#fff;border:2.5px solid var(--ink);border-radius:14px;
  padding:10px 13px;outline:none;transition:box-shadow .15s;
}
input[type=text]:focus,textarea:focus,select:focus{box-shadow:3px 3px 0 var(--pink)}
textarea{resize:vertical;line-height:1.5}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.row2 > div > label{margin-bottom:6px}

/* 主题 */
.themes{display:flex;gap:10px;flex-wrap:wrap}
.theme{
  width:52px;height:52px;border-radius:16px;border:3px solid var(--ink);
  cursor:pointer;box-shadow:var(--sh-sm);padding:0;position:relative;transition:.15s;
}
.theme:hover{transform:translateY(-3px)}
.theme.is-on{box-shadow:0 0 0 4px #fff,0 0 0 7px var(--ink)}
.theme.is-on::after{content:"✓";position:absolute;inset:0;display:grid;place-items:center;color:#fff;font-size:20px;text-shadow:0 2px 3px rgba(0,0,0,.4)}

/* 形状选择 */
.shape-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:10px}
.shape-grid.small{grid-template-columns:repeat(4,1fr)}
.shape{
  background:#fff;border:2.5px solid var(--ink);border-radius:16px;
  padding:6px 4px 5px;cursor:pointer;box-shadow:3px 3px 0 var(--ink);
  display:flex;flex-direction:column;align-items:center;gap:3px;transition:.15s;
}
.shape:hover{transform:translate(-1px,-2px);box-shadow:5px 5px 0 var(--ink)}
.shape.is-on{background:var(--cream);box-shadow:inset 0 0 0 3px var(--yellow)}
.shape svg{width:36px;height:36px;display:block}
.shape span{font-size:11px;font-weight:700;opacity:.8}
.shape-grid.small .shape svg{width:40px;height:40px}

/* chips */
.chips{display:flex;gap:8px;flex-wrap:wrap}
.chip{
  font-family:inherit;font-size:13px;font-weight:700;cursor:pointer;
  background:#fff;border:2.5px solid var(--ink);border-radius:999px;padding:6px 14px;
  box-shadow:3px 3px 0 var(--ink);transition:.15s;
}
.chip:hover{transform:translate(-1px,-1px)}
.chip.is-on{background:var(--purple);color:#fff;transform:translate(1px,2px);box-shadow:1px 1px 0 var(--ink)}

/* emoji */
.emoji-row{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px}
.emoji{
  width:44px;height:44px;font-size:23px;line-height:1;cursor:pointer;
  background:#fff;border:2.5px solid var(--ink);border-radius:14px;
  box-shadow:3px 3px 0 var(--ink);transition:.15s;display:grid;place-items:center;
}
.emoji:hover{transform:translateY(-3px) rotate(-6deg)}
.emoji.is-on{background:var(--yellow);box-shadow:inset 0 0 0 3px #fff}
.upload-row{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:6px}

/* slider */
.slider-row{margin-top:14px}
input[type=range]{
  width:100%;-webkit-appearance:none;appearance:none;height:14px;border-radius:999px;
  background:linear-gradient(90deg,var(--yellow),var(--pink));
  border:2.5px solid var(--ink);outline:none;
}
input[type=range]::-webkit-slider-thumb{
  -webkit-appearance:none;width:24px;height:24px;border-radius:50%;
  background:#fff;border:3px solid var(--ink);cursor:pointer;box-shadow:2px 2px 0 rgba(43,43,43,.5);
}
input[type=range]::-moz-range-thumb{
  width:22px;height:22px;border-radius:50%;background:#fff;border:3px solid var(--ink);cursor:pointer;
}
input[type=color]{
  width:100%;height:44px;padding:3px;background:#fff;border:2.5px solid var(--ink);
  border-radius:14px;cursor:pointer;
}

/* 高级 */
.adv{padding-top:14px}
.adv summary{font-size:16px;font-weight:700;cursor:pointer;list-style:none}
.adv summary::-webkit-details-marker{display:none}
.adv summary::before{content:"▸ ";display:inline-block;transition:.2s}
.adv[open] summary::before{transform:rotate(90deg)}
.adv-body{padding-top:14px}
.adv-body .row2{margin-bottom:6px}
.hint{font-size:12.5px;line-height:1.6;opacity:.75;margin:12px 0 0;background:var(--cream);
  border:2px dashed var(--ink);border-radius:12px;padding:8px 10px}

/* 预览 */
.stage{position:sticky;top:18px}
.preview-card{padding:16px}
.preview-head{display:flex;align-items:center;gap:7px;font-size:14px;font-weight:700;margin-bottom:12px}
.dot-live{width:11px;height:11px;border-radius:50%;background:#37d67a;border:2px solid var(--ink);animation:blink 1.4s infinite}
@keyframes blink{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.8)}}
.preview-box{
  border:3px dashed rgba(43,43,43,.35);border-radius:18px;padding:14px;
  display:grid;place-items:center;min-height:330px;
  background-image:linear-gradient(45deg,#f1f1f4 25%,transparent 25%,transparent 75%,#f1f1f4 75%),
                   linear-gradient(45deg,#f1f1f4 25%,transparent 25%,transparent 75%,#f1f1f4 75%);
  background-size:18px 18px;background-position:0 0,9px 9px;
  background-color:#fff;
}
.preview-box svg{width:100%;max-width:330px;height:auto;display:block;border-radius:14px}
.ph{text-align:center;color:rgba(43,43,43,.55)}
.ph-emoji{font-size:52px;display:block;animation:bob 2.6s ease-in-out infinite}
.ph p{margin:8px 0 0;font-size:14px}
.preview-foot{margin-top:12px;text-align:center;font-size:12.5px;opacity:.7}

.action-row{display:flex;gap:12px;margin:4px 0 18px;flex-wrap:wrap}
.tips{background:var(--cream)}
.tips h3{margin:0 0 10px;font-size:16px}
.tips ul{margin:0;padding-left:20px;font-size:13.5px;line-height:1.85;opacity:.85}

.foot{text-align:center;font-size:12.5px;opacity:.6;margin-top:26px}

/* toast */
.toast{
  position:fixed;left:50%;bottom:34px;transform:translate(-50%,26px);
  background:var(--ink);color:#fff;font-size:15px;font-weight:700;
  padding:11px 22px;border-radius:999px;opacity:0;pointer-events:none;transition:.28s;z-index:99;
  box-shadow:0 8px 20px rgba(0,0,0,.25);
}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* 响应式 */
@media (max-width:900px){
  .layout{grid-template-columns:1fr}
  .stage{position:static}
  .brand-text h1{font-size:27px}
  .shape-grid{grid-template-columns:repeat(4,1fr)}
  .shape-grid.small{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:480px){
  .page{padding:16px 13px 30px}
  .shape-grid{grid-template-columns:repeat(3,1fr)}
  .btn.big{min-width:100%}
  .topbar{gap:10px}
}