/* site/assets/style.css — 共用样式 */
*,*::before,*::after{box-sizing:border-box}
:root{
  --bg:#f6f7fb; --card:#ffffff; --ink:#101828; --muted:#667085;
  --line:#e4e7ec; --brand:#6941c6; --brand-2:#444ce7; --ok:#067647; --okbg:#ecfdf3;
  --warnbg:#fffaeb; --warnink:#b54708; --radius:14px;
}
html{-webkit-text-size-adjust:100%}
body{
  margin:0; background:var(--bg); color:var(--ink);
  font-family:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif;
  line-height:1.65; font-size:16px;
}
.wrap{max-width:940px;margin:0 auto;padding:0 20px}
header.site{border-bottom:1px solid var(--line);background:#fff}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;height:62px}
.brand{font-weight:700;letter-spacing:-.02em;text-decoration:none;color:var(--ink);font-size:17px}
.brand span{color:var(--brand)}
nav a{margin-left:18px;color:var(--muted);text-decoration:none;font-size:14px}
nav a:hover{color:var(--brand)}

h1{font-size:clamp(26px,4.5vw,38px);line-height:1.2;letter-spacing:-.025em;margin:34px 0 10px}
h2{font-size:21px;letter-spacing:-.015em;margin:34px 0 12px}
h3{font-size:16px;margin:22px 0 8px}
p{color:#344054;margin:0 0 14px}
.lede{font-size:17px;color:var(--muted);margin-bottom:26px;max-width:640px}

.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.card+.card{margin-top:18px}

/* 表单 */
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:620px){.grid2{grid-template-columns:1fr}}
label{display:block;font-size:13px;font-weight:600;color:#344054;margin-bottom:6px}
.hint{font-weight:400;color:var(--muted);font-size:12px;display:block;margin-top:2px}
input[type=number],select{
  width:100%;padding:10px 12px;font-size:15px;font-family:inherit;color:var(--ink);
  background:#fff;border:1px solid #d0d5dd;border-radius:9px;outline:none;transition:border-color .15s,box-shadow .15s;
}
input[type=number]:focus,select:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(105,65,198,.12)}
.field{margin-bottom:16px}

/* 结果 */
.result{background:linear-gradient(180deg,#fbfaff,#f7f5ff);border:1px solid #e0d9f7}
.hero-num{display:flex;flex-wrap:wrap;gap:26px;align-items:flex-end;margin-bottom:4px}
.bignum{font-size:38px;font-weight:700;letter-spacing:-.03em;line-height:1}
.bignum small{font-size:15px;font-weight:500;color:var(--muted);letter-spacing:0}
.bignum.neg{color:#b42318}
.lbl{font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);font-weight:600;margin-bottom:6px}

table{width:100%;border-collapse:collapse;font-size:14.5px;margin-top:6px}
th,td{padding:9px 0;border-bottom:1px solid var(--line);text-align:left}
th{font-size:12px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);font-weight:600}
td:last-child,th:last-child{text-align:right;font-variant-numeric:tabular-nums}
tr.total td{font-weight:700;border-bottom:none;padding-top:13px}
tr.total td:last-child{color:#b42318}

.badge{display:inline-block;font-size:12px;font-weight:600;padding:2px 9px;border-radius:999px;background:var(--okbg);color:var(--ok)}
.note{font-size:13px;color:var(--muted);margin-top:12px}

/* CTA / affiliate */
.cta{display:block;background:#101828;color:#fff;text-decoration:none;border-radius:12px;padding:18px 22px;transition:transform .12s,background .15s}
.cta:hover{background:#1d2939;transform:translateY(-1px)}
.cta strong{display:block;font-size:16px;margin-bottom:3px}
.cta span{font-size:13.5px;color:#98a2b3}
.cta-box{margin:30px 0}

/* 工具网格 */
.tools{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px;margin-top:18px}
.tool{display:block;text-decoration:none;color:inherit;background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 18px;transition:border-color .15s,box-shadow .15s}
.tool:hover{border-color:#d6bbfb;box-shadow:0 2px 12px rgba(105,65,198,.09)}
.tool b{display:block;font-size:15px;margin-bottom:3px}
.tool em{font-style:normal;font-size:13px;color:var(--muted)}
.tool.soon{opacity:.62;cursor:default}
.tool.soon:hover{border-color:var(--line);box-shadow:none}

footer.site{margin-top:56px;padding:26px 0 40px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}
footer.site a{color:var(--muted)}
details{border-top:1px solid var(--line);padding:14px 0}
details summary{cursor:pointer;font-weight:600;font-size:15px;list-style:none}
details summary::-webkit-details-marker{display:none}
details summary::before{content:"+ ";color:var(--brand);font-weight:700}
details[open] summary::before{content:"− "}
details p{margin:10px 0 0;font-size:14.5px;color:#475467}