/* PicToolBox — shared design system */
:root{
  --brand:#4f46e5;
  --brand-d:#4338ca;
  --brand-l:#eef2ff;
  --brand-l2:#f5f3ff;
  --ink:#0f172a;
  --ink2:#334155;
  --muted:#64748b;
  --line:#e2e8f0;
  --bg:#ffffff;
  --bg2:#f8fafc;
  --ok:#059669;
  --warn:#b45309;
  --radius:14px;
  --radius-s:9px;
  --shadow:0 1px 2px rgba(15,23,42,.06),0 8px 24px rgba(15,23,42,.06);
  --shadow-s:0 1px 3px rgba(15,23,42,.08);
  --max:1120px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);
  line-height:1.65;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{line-height:1.25;margin:0 0 .6em;font-weight:700;letter-spacing:-.02em}
h1{font-size:clamp(1.7rem,4vw,2.5rem)}
h2{font-size:clamp(1.3rem,2.6vw,1.75rem);margin-top:1.8em}
h3{font-size:1.12rem;margin-top:1.5em}
p{margin:0 0 1em}
ul,ol{margin:0 0 1em;padding-left:1.4em}
li{margin:.3em 0}
code{background:var(--bg2);border:1px solid var(--line);border-radius:5px;padding:.1em .4em;font-size:.9em}
hr{border:0;border-top:1px solid var(--line);margin:2.2em 0}

.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
.narrow{max-width:820px}

/* ---------- Header ---------- */
header.site{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--line);
}
header.site .wrap{display:flex;align-items:center;gap:20px;height:62px}
.logo{display:flex;align-items:center;gap:9px;font-weight:800;font-size:1.06rem;color:var(--ink);letter-spacing:-.03em}
.logo:hover{text-decoration:none}
.logo .mark{
  width:28px;height:28px;border-radius:8px;flex:0 0 28px;
  background:linear-gradient(135deg,var(--brand),#8b5cf6);
  display:grid;place-items:center;color:#fff;font-size:15px;font-weight:800;
}
header.site nav{margin-left:auto;display:flex;align-items:center;gap:22px;font-size:.94rem}
header.site nav a{color:var(--ink2);font-weight:500}
header.site nav a:hover{color:var(--brand);text-decoration:none}
header.site nav a.cta{
  background:var(--brand);color:#fff;padding:.46em 1em;border-radius:999px;font-weight:600;
}
header.site nav a.cta:hover{background:var(--brand-d);text-decoration:none}

/* ---------- Hero ---------- */
.hero{background:linear-gradient(180deg,var(--brand-l2) 0%,#fff 100%);padding:44px 0 34px;border-bottom:1px solid var(--line)}
.hero h1{margin-bottom:.35em}
.hero .sub{font-size:1.08rem;color:var(--ink2);max-width:660px;margin-bottom:1.2em}
.badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.badge{
  font-size:.8rem;background:#fff;border:1px solid var(--line);color:var(--ink2);
  padding:.28em .75em;border-radius:999px;font-weight:500;
}
.badge.on{background:#ecfdf5;border-color:#a7f3d0;color:#047857}

/* ---------- Tool UI ---------- */
.toolcard{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:20px;margin:26px 0 34px;
}
.dropzone{
  border:2px dashed #cbd5e1;border-radius:var(--radius-s);background:var(--bg2);
  padding:38px 20px;text-align:center;cursor:pointer;transition:.16s;
}
.dropzone:hover,.dropzone.drag{border-color:var(--brand);background:var(--brand-l)}
.dropzone .big{font-size:1.05rem;font-weight:700;color:var(--ink)}
.dropzone .sm{font-size:.86rem;color:var(--muted);margin-top:5px}
.btn{
  display:inline-flex;align-items:center;gap:7px;justify-content:center;
  background:var(--brand);color:#fff;border:0;border-radius:10px;
  padding:.7em 1.35em;font-size:.97rem;font-weight:600;font-family:inherit;
  cursor:pointer;transition:.15s;
}
.btn:hover{background:var(--brand-d)}
.btn:disabled{opacity:.45;cursor:not-allowed}
.btn.sec{background:#fff;color:var(--ink2);border:1px solid #cbd5e1}
.btn.sec:hover{background:var(--bg2);color:var(--ink)}
.btn.ghost{background:transparent;color:var(--brand);border:0;padding:.5em .6em}
.btn.wide{width:100%}
.btn-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}

.stage{display:none;margin-top:18px}
.stage.show{display:block}
.canvas-wrap{
  position:relative;background:
    repeating-conic-gradient(#eef2f7 0% 25%, #ffffff 0% 50%) 50%/20px 20px;
  border:1px solid var(--line);border-radius:var(--radius-s);
  min-height:230px;display:grid;place-items:center;overflow:hidden;padding:12px;
}
.canvas-wrap canvas{max-width:100%;max-height:60vh;height:auto;border-radius:6px;display:block}
.viewtoggle{display:flex;gap:6px;justify-content:center;margin-top:12px}
.viewtoggle button{
  border:1px solid #cbd5e1;background:#fff;color:var(--ink2);border-radius:999px;
  padding:.35em 1.05em;font-size:.88rem;font-weight:600;cursor:pointer;font-family:inherit;
}
.viewtoggle button.active{background:var(--ink);color:#fff;border-color:var(--ink)}

.controls{margin-top:18px;display:grid;gap:15px}
.ctrl label{display:flex;justify-content:space-between;font-size:.9rem;font-weight:600;color:var(--ink2);margin-bottom:6px}
.ctrl label .val{color:var(--brand);font-variant-numeric:tabular-nums}
input[type=range]{width:100%;accent-color:var(--brand);height:22px}
select,input[type=text],input[type=number]{
  font-family:inherit;font-size:.94rem;border:1px solid #cbd5e1;border-radius:8px;
  padding:.5em .7em;background:#fff;color:var(--ink);width:100%;
}
fieldset{border:1px solid var(--line);border-radius:var(--radius-s);padding:14px;margin:0}
legend{font-size:.86rem;font-weight:700;color:var(--muted);padding:0 .45em;text-transform:uppercase;letter-spacing:.05em}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media(max-width:520px){.row2{grid-template-columns:1fr}}

.status{font-size:.9rem;color:var(--muted);margin-top:12px;min-height:1.4em}
.status.err{color:#b91c1c}
.status.ok{color:var(--ok)}

/* Pro gate */
.gate{
  margin-top:16px;border:1px solid #fde68a;background:#fffbeb;border-radius:var(--radius-s);
  padding:14px 16px;font-size:.92rem;color:#78350f;display:flex;gap:12px;align-items:center;flex-wrap:wrap;
}
.gate .grow{flex:1 1 220px}
.gate strong{color:#78350f}

/* ---------- Tool grid ---------- */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(232px,1fr));gap:16px;margin:22px 0 8px}
.tcard{
  display:block;border:1px solid var(--line);border-radius:var(--radius-s);padding:18px;
  background:#fff;transition:.16s;color:inherit;
}
.tcard:hover{border-color:var(--brand);box-shadow:var(--shadow);text-decoration:none;transform:translateY(-2px)}
.tcard .ic{
  width:38px;height:38px;border-radius:10px;background:var(--brand-l);color:var(--brand);
  display:grid;place-items:center;font-size:19px;margin-bottom:11px;
}
.tcard h3{margin:0 0 .3em;font-size:1rem}
.tcard p{margin:0;font-size:.86rem;color:var(--muted);line-height:1.5}
.tcard .tag{margin-top:10px;font-size:.76rem;color:var(--ok);font-weight:700}

/* ---------- Content ---------- */
section.block{padding:34px 0}
section.block.alt{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.steps{counter-reset:s;list-style:none;padding:0}
.steps li{counter-increment:s;position:relative;padding:0 0 0 46px;margin:0 0 1.05em}
.steps li::before{
  content:counter(s);position:absolute;left:0;top:2px;width:30px;height:30px;border-radius:50%;
  background:var(--brand);color:#fff;display:grid;place-items:center;font-weight:700;font-size:.92rem;
}
.faq details{border:1px solid var(--line);border-radius:var(--radius-s);padding:0;margin-bottom:10px;background:#fff}
.faq summary{
  cursor:pointer;padding:.9em 1.1em;font-weight:650;font-size:.98rem;list-style:none;
  display:flex;justify-content:space-between;gap:12px;align-items:center;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:1.25rem;color:var(--muted);font-weight:400}
.faq details[open] summary::after{content:"\2013"}
.faq details>div{padding:0 1.1em 1.05em;font-size:.95rem;color:var(--ink2)}

table{width:100%;border-collapse:collapse;font-size:.92rem;margin:1.1em 0}
th,td{border:1px solid var(--line);padding:.6em .8em;text-align:left}
th{background:var(--bg2);font-weight:650}
td.n{font-variant-numeric:tabular-nums}

/* ---------- Ad slots ---------- */
.ad{
  margin:30px 0;border:1px dashed #cbd5e1;border-radius:var(--radius-s);background:#fcfdff;
  min-height:96px;display:grid;place-items:center;color:#94a3b8;font-size:.78rem;
  letter-spacing:.08em;text-transform:uppercase;
}

/* ---------- Breadcrumb ---------- */
.crumb{font-size:.85rem;color:var(--muted);padding:16px 0 0}
.crumb a{color:var(--muted)}
.crumb span{margin:0 .45em;color:#cbd5e1}

/* ---------- Related ---------- */
.related{display:flex;flex-wrap:wrap;gap:9px;margin:14px 0 0}
.related a{
  font-size:.88rem;border:1px solid var(--line);border-radius:999px;padding:.36em .95em;
  color:var(--ink2);background:#fff;
}
.related a:hover{border-color:var(--brand);color:var(--brand);text-decoration:none}

/* ---------- Footer ---------- */
footer.site{background:#0f172a;color:#94a3b8;margin-top:44px;padding:40px 0 26px;font-size:.9rem}
footer.site .cols{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:26px}
@media(max-width:760px){footer.site .cols{grid-template-columns:1fr 1fr}}
footer.site h4{color:#fff;font-size:.82rem;text-transform:uppercase;letter-spacing:.08em;margin-bottom:.9em}
footer.site a{color:#94a3b8;display:block;margin:.4em 0}
footer.site a:hover{color:#fff;text-decoration:none}
footer.site .brandline{color:#e2e8f0;font-weight:700;font-size:1.02rem;margin-bottom:.5em}
footer.site .fin{margin-top:28px;padding-top:18px;border-top:1px solid #1e293b;font-size:.82rem;color:#64748b}

/* ---------- Modal ---------- */
.modal{position:fixed;inset:0;background:rgba(15,23,42,.55);display:none;place-items:center;z-index:200;padding:20px}
.modal.show{display:grid}
.modal .box{background:#fff;border-radius:var(--radius);max-width:520px;width:100%;padding:28px;box-shadow:0 24px 60px rgba(0,0,0,.3)}
.modal .box h2{margin-top:0}
.modal .price{font-size:2rem;font-weight:800;color:var(--brand)}
.modal .price small{font-size:.9rem;color:var(--muted);font-weight:500}

/* ---------- Pricing ---------- */
.plans{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:18px;margin:26px 0}
.plan{border:1px solid var(--line);border-radius:var(--radius);padding:26px;background:#fff}
.plan.pro{border:2px solid var(--brand);box-shadow:var(--shadow);position:relative}
.plan.pro::after{
  content:"MOST POPULAR";position:absolute;top:-11px;left:26px;background:var(--brand);color:#fff;
  font-size:.68rem;font-weight:800;letter-spacing:.09em;padding:.28em .8em;border-radius:999px;
}
.plan .amt{font-size:2.2rem;font-weight:800;letter-spacing:-.03em}
.plan .amt small{font-size:.86rem;font-weight:500;color:var(--muted)}
.plan ul{list-style:none;padding:0;font-size:.93rem}
.plan li{padding-left:24px;position:relative}
.plan li::before{content:"\2713";position:absolute;left:0;color:var(--ok);font-weight:800}

.notice{
  background:#fffbeb;border:1px solid #fde68a;color:#78350f;border-radius:var(--radius-s);
  padding:14px 16px;font-size:.9rem;margin:18px 0;
}
.note-ok{background:#ecfdf5;border-color:#a7f3d0;color:#065f46}

.lastupd{font-size:.83rem;color:var(--muted);margin-top:6px}

/* ---------- 积分条 / 套餐 ---------- */
.stagehead{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px}
.creditchip{
  display:inline-flex;align-items:center;gap:6px;background:var(--brand-l);color:var(--brand-d);
  border:1px solid #c7d2fe;border-radius:999px;padding:.3em .85em;font-size:.85rem;font-weight:600;
}
.creditchip b{font-size:.6em;opacity:.8}
.packs{display:grid;grid-template-columns:repeat(auto-fit,minmax(112px,1fr));gap:10px;margin:14px 0 4px}
button.pack{
  border:1px solid var(--line);background:#fff;border-radius:12px;padding:14px 10px;cursor:pointer;
  display:flex;flex-direction:column;align-items:center;gap:2px;font-family:inherit;transition:.15s;position:relative;
}
button.pack:hover{border-color:var(--brand);box-shadow:var(--shadow-s);transform:translateY(-1px)}
button.pack.best{border-color:var(--brand);box-shadow:0 0 0 1px var(--brand)}
button.pack.best::after{content:"POPULAR";position:absolute;top:-9px;left:50%;transform:translateX(-50%);
  background:var(--brand);color:#fff;font-size:.6rem;font-weight:800;letter-spacing:.08em;padding:.15em .6em;border-radius:999px}
.pack .pc{font-size:1.35rem;font-weight:800;color:var(--ink)}
.pack .pl{font-size:.74rem;color:var(--muted);text-align:center}
.pack .pp{font-size:.92rem;font-weight:700;color:var(--brand);margin-top:3px}
.redeemrow{display:flex;gap:8px;margin-top:14px}
.redeemrow input{flex:1}

/* ---------- 主页前后对比 ---------- */
.ba{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);
  touch-action:none;cursor:ew-resize;user-select:none;-webkit-user-select:none;max-height:560px;background:#e2e8f0}
.ba img{width:100%;height:auto;display:block;pointer-events:none}
.ba .ba-a{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.ba .ba-b{position:relative}
.ba-handle{position:absolute;top:0;bottom:0;left:50%;width:2px;background:#fff;box-shadow:0 0 0 1px rgba(0,0,0,.25);transform:translateX(-50%)}
.ba-handle span{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:38px;height:38px;border-radius:50%;
  background:#fff;box-shadow:0 2px 10px rgba(0,0,0,.3);display:grid;place-items:center;
}
.ba-handle span::before{content:"\2194";color:var(--ink);font-size:1rem;font-weight:700}
.ba-tag{position:absolute;top:12px;font-size:.72rem;font-weight:800;letter-spacing:.09em;text-transform:uppercase;
  background:rgba(15,23,42,.72);color:#fff;padding:.3em .7em;border-radius:999px}
.ba-tag.l{left:12px}.ba-tag.r{right:12px;background:var(--brand)}
.ba-note{font-size:.84rem;color:var(--muted);margin-top:9px}

/* ---------- 主页 demo 网格 ---------- */
.demos{display:grid;grid-template-columns:1.25fr 1fr;gap:20px;margin:26px 0 6px}
@media(max-width:820px){.demos{grid-template-columns:1fr}}

/* ---------- 看板 /admin ---------- */
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin:20px 0}
.kpi{border:1px solid var(--line);border-radius:var(--radius-s);padding:14px 16px;background:#fff}
.kpi .k{font-size:.74rem;text-transform:uppercase;letter-spacing:.07em;color:var(--muted);font-weight:700}
.kpi .v{font-size:1.7rem;font-weight:800;letter-spacing:-.02em;margin-top:4px}
.kpi .s{font-size:.76rem;color:var(--muted)}
.kpi.warn .v{color:#b45309}
.funnel{display:flex;gap:6px;margin:14px 0 6px;flex-wrap:wrap}
.fstep{flex:1 1 120px;text-align:center;border-radius:10px;padding:12px 8px;background:var(--brand-l);border:1px solid #c7d2fe}
.fstep .fn{font-size:.72rem;font-weight:700;color:var(--brand-d);text-transform:uppercase;letter-spacing:.05em}
.fstep .fv{font-size:1.3rem;font-weight:800}
.fstep .fp{font-size:.72rem;color:var(--muted)}
.fstep.hot{background:#fff7ed;border-color:#fdba74}
.fstep.hot .fn{color:#c2410c}
.adminwrap{max-width:1080px}
.lockbox{max-width:420px;margin:60px auto;border:1px solid var(--line);border-radius:var(--radius);padding:28px;background:#fff;box-shadow:var(--shadow)}