:root{--ink:#31415e;--muted:#68758c;--line:rgba(255,255,255,.82);--paper:rgba(255,255,255,.76)}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;min-height:100vh;color:var(--ink);font-family:"Noto Serif SC","Microsoft YaHei",serif;background:linear-gradient(155deg,#a9d2f1 0%,#e3edf7 34%,#f8ccd7 70%,#ffdda8 100%);background-attachment:fixed}
.topbar{position:sticky;top:0;z-index:2;display:flex;align-items:center;justify-content:space-between;padding:16px clamp(18px,5vw,64px);border-bottom:1px solid rgba(255,255,255,.62);background:rgba(230,240,249,.72);backdrop-filter:blur(18px)}
.topbar a{color:var(--ink);text-decoration:none}.brand{font-size:15px;letter-spacing:.08em}.back{font-size:13px;color:var(--muted)!important}
main{width:min(880px,calc(100% - 32px));margin:40px auto 64px;padding:clamp(26px,5vw,56px);border:1px solid var(--line);border-radius:28px;background:var(--paper);box-shadow:0 22px 55px rgba(74,97,132,.18);backdrop-filter:blur(20px)}
.eyebrow{margin:0 0 12px;font:11px/1.4 system-ui,sans-serif;letter-spacing:.16em;color:#987f9e}h1{margin:0;font-size:clamp(28px,5vw,42px);font-weight:500}.meta{margin:12px 0 32px;color:var(--muted);font-size:13px;line-height:1.8}
h2{margin:34px 0 12px;font-size:19px;font-weight:600}h3{margin:22px 0 8px;font-size:16px}p,li{color:#4f5d76;font-size:15px;line-height:1.95}ul,ol{padding-left:1.4em}.notice{margin:24px 0;padding:16px 18px;border:1px solid rgba(255,255,255,.9);border-radius:16px;background:rgba(255,255,255,.55)}a{color:#4c6f9c}.contact{word-break:break-all}footer{text-align:center;padding:0 20px 38px;color:#69758b;font:12px/1.8 system-ui,sans-serif}footer a{color:#69758b;text-decoration:none;margin:0 7px}
@media(max-width:560px){main{margin:18px auto 40px;padding:25px 20px;border-radius:22px}.topbar{padding:14px 18px}h2{margin-top:29px}}