/* ============================================ 檑声的创作笔记 · 主题样式 设计语言移植自「科技企业研究」参考站 ============================================ */ :root{ --ink:#16181c; --ink-2:#3f444b; --muted:#767c84; --paper:#f6f3ee; --card:#ffffff; --brand:#e23a1e; --brand-deep:#b22a12; --brand-soft:#fdeee9; --line:#e5ded3; --blue:#2f6ea5; --blue-soft:#eef4fa; --gold:#b8893a; --gold-soft:#faf0e7; --green:#1d7a4f; --serif:"Noto Serif SC","Songti SC","SimSun",serif; --sans:"Noto Sans SC","Microsoft YaHei","PingFang SC",sans-serif; } *{margin:0;padding:0;box-sizing:border-box} html{scroll-behavior:smooth} body{font-family:var(--sans);background:var(--paper);color:var(--ink);line-height:1.75;font-size:15.5px;-webkit-font-smoothing:antialiased;min-height:100vh;display:flex;flex-direction:column} main{flex:1 0 auto;width:100%} img{max-width:100%} a{color:inherit;text-decoration:none} /* ===== 导航 ===== */ nav{position:sticky;top:0;z-index:50;background:rgba(22,24,28,.92);backdrop-filter:blur(8px);color:#fff} .nav-in{max-width:1180px;margin:0 auto;padding:14px 32px;display:flex;align-items:center;gap:26px} .logo{display:flex;align-items:center;gap:10px;font-family:var(--serif);font-weight:700;font-size:17px;letter-spacing:.02em;color:#fff} .logo .mark{width:30px;height:30px;border-radius:8px;background:linear-gradient(135deg,var(--brand),#f0813a);display:flex;align-items:center;justify-content:center;font-size:15px;color:#fff} nav a.ml{color:#cfd4da;font-size:13.5px;padding:4px 2px;border-bottom:2px solid transparent} nav a.ml:hover,nav a.ml.on{color:#fff;border-bottom-color:var(--brand)} nav .sp{margin-left:auto;font-size:12px;color:#8a9098} /* 报告页侧边目录