:root{--brand-50: #f0fdfa;--brand-100: #ccfbf1;--brand-200: #99f6e4;--brand-500: #14b8a6;--brand-600: #0d9488;--brand-700: #0f766e;--brand-800: #115e59;--ink: #0f172a;--ink-2: #334155;--muted: #64748b;--line: #e2e8f0;--bg: #ffffff;--bg-soft: #f8fafc;--radius-sm: 8px;--radius: 12px;--radius-lg: 16px;--shadow-sm: 0 1px 2px rgb(15 23 42 / 6%);--shadow: 0 4px 16px rgb(15 23 42 / 8%);--wrap: 1080px;--gutter: 20px}*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:76px}body{margin:0;background:var(--bg);color:var(--ink-2);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Source Han Sans SC,sans-serif;font-size:16px;line-height:1.7;overflow-wrap:break-word}h1,h2,h3{margin:0;color:var(--ink);line-height:1.3;font-weight:700}p{margin:0}a{color:var(--brand-700)}img{max-width:100%;height:auto}:focus-visible{outline:3px solid 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img{width:32px;height:32px}.brand__name{white-space:nowrap}.nav{display:none;align-items:center;gap:22px}.nav a{color:var(--ink-2);font-size:15px;text-decoration:none}.nav a:hover{color:var(--brand-700)}.header .btn{min-height:44px;padding:0 18px;font-size:15px}@media(min-width:900px){.header__inner{min-height:72px}.nav{display:flex}.header .btn{min-height:40px}}.hero{background:linear-gradient(180deg,var(--brand-50) 0%,#fff 78%);border-bottom:1px solid var(--line)}.hero__inner{padding-block:40px 48px;text-align:center}.hero__tagline{display:inline-block;margin-bottom:16px;padding:5px 14px;border:1px solid var(--brand-200);border-radius:999px;background:#fff;color:var(--brand-700);font-size:14px;font-weight:600}.hero__title{font-size:clamp(28px,7vw,46px)}.hero__lead{max-width:620px;margin:16px auto 0;color:var(--ink-2);font-size:17px}.hero__actions{display:flex;flex-direction:column;gap:12px;max-width:420px;margin:28px auto 0}.hero__note{margin-top:14px;color:var(--muted);font-size:14px}.hero__meta{margin-top:18px;color:var(--muted);font-size:14px}.hero__meta span+span:before{content:"·";margin-inline:8px}@media(min-width:768px){.hero__inner{padding-block:64px 72px}.hero__lead{font-size:19px}.hero__actions{flex-direction:row;justify-content:center;max-width:none}}@media(min-width:768px){.only-mobile{display:none!important}}@media(max-width:767.98px){.only-desktop{display:none!important}}.share-box{max-width:420px;margin:0 auto;padding:16px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;text-align:start}.share-box__label{margin-bottom:10px;color:var(--ink);font-size:15px;font-weight:600}.share-box__url{display:block;margin-bottom:12px;padding:10px 12px;border:1px dashed 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