*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Noto Sans SC",sans-serif;background:#f5f0e6;color:#2a2520;line-height:1.75;font-size:16px}
a{color:#6b4c2a;text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto;display:block}

.container{max-width:1100px;margin:0 auto;padding:0 20px}

.site-header{background:#fff;border-bottom:2px solid #8b6914;position:sticky;top:0;z-index:300}
.header-row{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px 0;position:relative}
.brand{display:flex;align-items:center;gap:10px;color:#3d2914;font-weight:600;font-size:.95rem}
.brand:hover{text-decoration:none}
.brand img{border-radius:6px}
.brand b{color:#8b6914;font-weight:700}
.site-nav ul{display:flex;flex-wrap:wrap;gap:6px 18px;list-style:none}
.site-nav a{color:#5c5044;font-size:.9rem;padding:4px 0}
.site-nav a.active,.site-nav a:hover{color:#6b4c2a;font-weight:600;border-bottom:2px solid #c9a227;text-decoration:none}
.nav-toggle{display:none;background:none;border:none;cursor:pointer;padding:8px;flex-direction:column;gap:5px}
.nav-toggle span{display:block;width:22px;height:2px;background:#3d2914;transition:.2s}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.ads-top-bar{background:#fff;border-bottom:1px dashed #c9a227;padding:10px 0}
.applist-title{font-size:.78rem;color:#888;text-align:center;margin-bottom:6px}
#ads{display:flex;justify-content:center;flex-wrap:wrap;gap:12px}
#ads .caption{font-size:.7rem;color:#666;margin-top:4px;text-align:center;max-width:70px;line-height:1.3}

.board-hero{padding:32px 0 20px;text-align:center}
.board-hero .tag{display:inline-block;background:#fff9e6;border:1px solid #c9a227;color:#6b4c2a;font-size:.82rem;padding:4px 14px;border-radius:20px;margin-bottom:12px}
.board-hero h1{font-size:1.75rem;line-height:1.35;color:#3d2914;margin-bottom:14px}
.board-hero .intro{color:#4a4038;font-size:1rem;text-align:justify;max-width:780px;margin:0 auto 12px}
.board-jump{display:flex;flex-wrap:wrap;justify-content:center;gap:8px 12px;margin-top:18px}
.board-jump a{font-size:.85rem;padding:5px 12px;background:#fff;border:1px solid #d4c4a8;border-radius:4px;color:#5c4033;box-shadow:1px 2px 0 #c9a22733}
.board-jump a:hover{background:#fff9e6;text-decoration:none}

.board-surface{margin:24px 0 40px;padding:28px 16px 36px;background:linear-gradient(145deg,#e8dcc8 0%,#d9cbb5 100%);border-radius:4px;box-shadow:inset 0 2px 8px rgba(0,0,0,.08),0 4px 16px rgba(0,0,0,.06);position:relative}
.board-surface::before{content:"";position:absolute;inset:0;background-image:radial-gradient(circle,#b8a88a 1px,transparent 1px);background-size:18px 18px;opacity:.25;pointer-events:none;border-radius:4px}

.pin-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px 20px;position:relative;z-index:1}
.pin-note{background:#fffef8;border:1px solid #e0d5c0;padding:20px 18px 22px;box-shadow:3px 5px 12px rgba(60,40,20,.12);position:relative}
.pin-note::before{content:"";position:absolute;top:-6px;left:50%;transform:translateX(-50%);width:14px;height:14px;background:radial-gradient(circle at 35% 35%,#e74c3c,#922b21);border-radius:50%;box-shadow:0 2px 4px rgba(0,0,0,.25)}
.pin-note:nth-child(odd){transform:rotate(-.8deg)}
.pin-note:nth-child(even){transform:rotate(.6deg)}
.pin-note.wide{grid-column:1/-1;transform:rotate(.3deg)}
.pin-note h2{font-size:1.05rem;color:#3d2914;margin-bottom:10px;padding-bottom:6px;border-bottom:2px dashed #e8dcc8}
.pin-note p{margin-bottom:10px;color:#4a4038;font-size:.94rem;text-align:justify}
.pin-note ul{margin:8px 0 10px 18px;color:#5c5044;font-size:.9rem}
.pin-note li{margin-bottom:4px}
.pin-note figure{margin:12px 0;border:3px solid #fff;box-shadow:2px 3px 8px rgba(0,0,0,.1)}
.pin-note figcaption{font-size:.76rem;color:#777;padding:6px 8px;background:#faf6ee;text-align:center}
.pin-callout{margin:10px 0;padding:10px 12px;background:#fff9e6;border-left:3px solid #c9a227;font-size:.88rem;color:#5c4033}
.pin-warn{margin:10px 0;padding:10px 12px;background:#fdecea;border-left:3px solid #c0392b;font-size:.88rem;color:#7b241c}

.board-faq{padding:28px 0 36px}
.board-faq h2{font-size:1.2rem;text-align:center;margin-bottom:18px;color:#3d2914}
.board-faq details{background:#fff;border:1px solid #e0d5c0;margin-bottom:8px;box-shadow:2px 3px 0 #c9a22722}
.board-faq summary{padding:12px 16px;cursor:pointer;font-weight:500;list-style:none}
.board-faq summary::-webkit-details-marker{display:none}
.board-faq details[open] summary{background:#fff9e6;border-bottom:1px dashed #e0d5c0}
.board-faq details p{padding:12px 16px;color:#4a4038;font-size:.93rem}

.board-close{padding:20px 0 32px;text-align:center;max-width:760px;margin:0 auto}
.board-close h2{font-size:1.1rem;margin-bottom:10px;color:#3d2914}
.board-close p{margin-bottom:10px;color:#4a4038;font-size:.95rem;text-align:justify}

.related-read{padding:20px 0 36px;border-top:2px dashed #d4c4a8}
.related-read h2{font-size:1rem;margin-bottom:12px;color:#3d2914}
.related-grid{display:flex;flex-wrap:wrap;gap:10px 14px}
.related-grid a{font-size:.88rem;padding:6px 12px;background:#fff;border:1px solid #d4c4a8;color:#5c4033}
.related-grid a:hover{background:#fff9e6;text-decoration:none}

.site-footer{background:#fff;border-top:2px solid #8b6914;padding:28px 0;text-align:center;font-size:.88rem;color:#666}
.footer-links{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;margin-bottom:10px}
.footer-links a{color:#5c5044}

.prose-page{max-width:720px;margin:0 auto;padding:32px 20px 48px}
.prose-page h1{font-size:1.5rem;margin-bottom:16px;color:#3d2914}
.prose-page h2{font-size:1.1rem;margin:16px 0 8px}
.prose-page p{margin-bottom:12px;color:#4a4038}
.error-page{text-align:center;padding:48px 20px 24px}
.error-page h1{font-size:3rem;color:#8b6914}

@media(max-width:768px){
  .nav-toggle{display:flex}
  .site-nav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:2px solid #8b6914;padding:12px 20px;box-shadow:0 4px 12px rgba(0,0,0,.08)}
  .site-nav.is-open{display:block}
  .pin-grid{grid-template-columns:1fr}
  .pin-note,.pin-note.wide{transform:none}
  .board-hero h1{font-size:1.4rem}
}