/* 全站中文排版基线：在所有页面样式之后加载，避免字号和字形互相覆盖。 */
:root{--font-sans:"Noto Sans SC","Microsoft YaHei","PingFang SC","Hiragino Sans GB","Source Han Sans SC",Arial,sans-serif}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{font-family:var(--font-sans);font-size:16px;line-height:1.75;font-synthesis:none}
button,input,select,textarea{font:inherit}
h1,h2,h3,.brand,.button,b,strong{font-family:var(--font-sans);font-weight:700;font-synthesis:none}
.brand{letter-spacing:0}
.brand small{font-size:11px;line-height:1.4;letter-spacing:.04em;font-weight:400}
.eyebrow{font-size:13px;line-height:1.5;letter-spacing:.08em;font-weight:700;text-transform:none}
.hero h1,.page-hero h1{font-size:clamp(42px,5.25vw,64px);line-height:1.2;letter-spacing:0;font-weight:700}
.section h2,.cta h2{font-size:clamp(29px,3.4vw,40px);line-height:1.35;letter-spacing:0;font-weight:700}
.three h3,.four h3{font-size:20px;line-height:1.5;letter-spacing:0}
.article-grid h2{letter-spacing:0}
.article h1{font-size:clamp(34px,4vw,46px);line-height:1.35;letter-spacing:0}
.prose{font-size:17px;line-height:1.9}
.button{font-weight:700;letter-spacing:0}
.micro,.legal{font-size:13px;line-height:1.65}
@media(max-width:850px){.hero h1,.page-hero h1{font-size:clamp(38px,10.5vw,50px);line-height:1.22}.section h2,.cta h2{font-size:clamp(27px,7.5vw,34px);line-height:1.38}.prose{font-size:16px}}