*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;-webkit-text-size-adjust:100%}
body{font-family:Georgia,"Times New Roman","PingFang SC","Microsoft YaHei",serif;background:#1a1208;color:#3d2818;line-height:1.65}
img{max-width:100%;height:auto;display:block}
a{color:#8b4513;text-decoration:none}
a:hover{text-decoration:underline}
ul{list-style:none}
.container{width:min(1140px,92vw);margin:0 auto}

.site-header{position:sticky;top:0;z-index:100;background:#2c1810;border-bottom:2px solid #8b6914}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:.65rem 0;gap:1rem}
.logo{font-weight:800;font-size:.95rem;color:#d4a853;letter-spacing:.06em;display:flex;align-items:center;gap:.55rem;font-family:Georgia,serif}
.logo-compass{width:22px;height:22px;border:2px solid #d4a853;border-radius:50%;position:relative}
.logo-compass::before,.logo-compass::after{content:"";position:absolute;background:#d4a853}
.logo-compass::before{width:2px;height:100%;left:50%;top:0;transform:translateX(-50%)}
.logo-compass::after{width:100%;height:2px;top:50%;left:0;transform:translateY(-50%)}
.nav-main{display:flex;flex-wrap:wrap;gap:.3rem 1.1rem;font-size:.82rem;font-family:"Segoe UI","PingFang SC",sans-serif}
.nav-main a{color:#a89070;font-weight:600}
.nav-main a.active,.nav-main a:hover{color:#d4a853;text-decoration:none}
.btn-nav{display:inline-block;background:#8b4513;color:#f4e8d0!important;border:1px solid #6b3410;padding:.4rem 1rem;font-weight:800;font-size:.8rem;text-decoration:none!important;font-family:"Segoe UI",sans-serif}
.btn-nav:hover{background:#a0522d}

.chart-strip{background:#2c1810;border-bottom:1px solid #4a3828;font-size:.72rem;padding:.35rem 0;color:#a89070;font-family:"Courier New",monospace}
.chart-strip .container{display:flex;flex-wrap:wrap;gap:.5rem 1.5rem}
.chart-strip em{color:#d4a853;font-style:normal;font-weight:700}

.section{padding:3.1rem 0}
.section-title{font-size:clamp(1.15rem,3vw,1.5rem);font-weight:800;margin-bottom:.35rem;color:#2c1810;letter-spacing:.04em;font-family:Georgia,serif}
.section-lead{color:#6b5040;font-size:.88rem;margin-bottom:1.65rem;max-width:640px}

.parchment{background:#f4e8d0;border:2px solid #c4a870;position:relative}
.parchment::before{content:"";position:absolute;top:4px;left:4px;right:4px;bottom:4px;border:1px solid #d4b890;pointer-events:none}

.footer{background:#1a0f08;border-top:2px solid #8b6914;padding:2.3rem 0 0;font-size:.84rem;color:#a89070}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:1.8rem;margin-bottom:1.6rem}
.footer h3{font-size:.88rem;color:#d4a853;margin-bottom:.6rem;font-weight:800;font-family:Georgia,serif}
.footer a{color:#887860}
.footer-links{display:flex;flex-wrap:wrap;gap:.35rem .9rem}
.footer-bottom{border-top:1px solid #3a2818;padding-top:.9rem;text-align:center;color:#5a4838;font-size:.75rem}

.faq-list{display:flex;flex-direction:column;gap:.45rem}
.faq-item{background:#f4e8d0;border:2px solid #c4a870}
.faq-q{width:100%;text-align:left;padding:.95rem 1.1rem;font-weight:800;font-size:.88rem;background:transparent;border:none;cursor:pointer;color:#2c1810;display:flex;justify-content:space-between;align-items:center;font-family:Georgia,serif}
.faq-q::after{content:"+";font-size:1.1rem;color:#8b4513;font-weight:400}
.faq-item.open .faq-q::after{content:"−"}
.faq-a{display:none;padding:0 1.1rem .95rem;font-size:.84rem;color:#6b5040;line-height:1.65}
.faq-item.open .faq-a{display:block}

.btn-chart{display:inline-block;background:#8b4513;color:#f4e8d0;border:1px solid #6b3410;padding:.58rem 1.2rem;font-weight:800;font-size:.86rem;text-decoration:none!important;font-family:"Segoe UI",sans-serif}
.btn-chart:hover{background:#a0522d}
.btn-parch{display:inline-block;color:#8b4513;border:2px solid #c4a870;padding:.58rem 1.2rem;font-weight:700;font-size:.86rem;text-decoration:none!important;background:#faf0dc;font-family:"Segoe UI",sans-serif}
.btn-parch:hover{border-color:#8b4513}

@media(max-width:768px){
  .header-inner{flex-wrap:wrap}
  .footer-grid{grid-template-columns:1fr}
}