@charset "utf-8";
:root{--paper:#f3efe6;--ink:#1b2534;--line:#c7c2b8;--indigo:#2947a0;--quiet:#575c62}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.65 "Noto Sans CJK SC",system-ui,"PingFang SC",sans-serif}
a{color:var(--indigo)}.masthead{background:#172541;color:#fff}.mast-inner{max-width:1120px;margin:auto;padding:16px 24px;display:flex;justify-content:space-between;align-items:center;gap:16px}
.site-brand{color:#fff;text-decoration:none;letter-spacing:.14em;font-weight:800;font-size:20px}.site-brand span{letter-spacing:0;font-size:12px;opacity:.7;font-weight:400}.mast-link{color:#dde6ff;font-size:13px}
.shell{max-width:1120px;margin:auto;padding:35px 24px}.eyebrow{color:#334ba0;text-transform:uppercase;letter-spacing:.2em;font-size:12px;font-weight:800}
.lead{border-bottom:3px solid #213459;padding:20px 0 40px}.lead h1{font:700 clamp(36px,5vw,64px)/1.2 Georgia,"Noto Serif SC",serif;letter-spacing:-.03em;margin:18px 0}
.lead h1 em{font-style:normal;color:var(--indigo)}.lead>p{max-width:810px;font-size:18px}.stats{display:flex;gap:36px;flex-wrap:wrap;margin-top:30px}
.stats>div{border-left:2px solid #2947a0;padding-left:15px;display:grid;gap:2px}.stats b{font-size:32px;font-family:Georgia,serif}.stats span{font-size:12px;color:var(--quiet)}
.method{display:grid;grid-template-columns:minmax(220px,1.1fr) minmax(250px,1fr);gap:40px;border-bottom:1px solid var(--line);padding:40px 0}
h2{font:700 29px/1.3 Georgia,"Noto Serif SC",serif;margin:10px 0 14px}.method p{max-width:750px}.formula{background:#e7e9ee;border-left:5px solid #2947a0;padding:28px;align-self:center}
.formula strong{font-size:20px;line-height:1.5;display:block}.formula small{display:block;color:#626a78;margin-top:18px}.note{display:block}.note p{max-width:900px}
.section-head{padding:30px 0 18px}.table-scroll{overflow-x:auto}table{border-collapse:collapse;width:100%;min-width:720px}
th{font-size:12px;text-align:left;letter-spacing:.04em;text-transform:uppercase;color:#646464;border-bottom:2px solid #192842;padding:14px 13px}
td{padding:17px 13px;border-bottom:1px solid var(--line);vertical-align:middle}tr:hover td{background:#ece9e1}
td:first-child{min-width:230px;font-weight:650}td small{display:block;font-size:12px;color:#7c7770}.rank{display:inline-block;color:#9c8b66;width:35px;font-family:Georgia,serif;font-weight:400}
.balance{color:#2947a0;font-size:23px;font-family:Georgia,serif;font-weight:800}.after{max-width:900px;padding:35px 0 55px}
.footer{background:#172541;color:#cbd4e4;text-align:center;padding:22px 24px;font-size:13px}.footer a{color:#fff}
.profile{display:grid;grid-template-columns:220px 1fr;gap:35px;padding:25px 0 60px}.profile img{width:100%;border-radius:4px}
@media(max-width:700px){.mast-inner{padding:12px 18px}.shell{padding:22px 18px}.method{display:block}.formula{margin-top:20px}.stats{gap:18px}.profile{grid-template-columns:1fr}.profile img{max-width:200px}.lead h1{font-size:38px}}