*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Noto Sans SC",sans-serif;background:#fff;color:#1a1a1a;line-height:1.75;font-size:16px}
a{color:#00695c;text-decoration:none}a:hover{text-decoration:underline}
img{max-width:100%;height:auto;display:block}
.container{max-width:1140px;margin:0 auto;padding:0 20px}
.site-header{background:#fff;border-bottom:2px solid #004d40;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:#111;font-weight:600;font-size:.95rem}
.brand:hover{text-decoration:none}.brand img{border-radius:4px}.brand b{color:#00695c;font-weight:700}
.site-nav ul{display:flex;flex-wrap:wrap;gap:6px 18px;list-style:none}
.site-nav a{color:#555;font-size:.9rem;padding:4px 0}
.site-nav a.active,.site-nav a:hover{color:#004d40;font-weight:600;border-bottom:2px solid #00695c;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:#333;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:#fafafa;border-bottom:1px solid #ddd;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}
.site-footer{background:#fafafa;border-top:2px solid #004d40;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:#555}
.prose-page{max-width:720px;margin:0 auto;padding:32px 20px 48px}
.prose-page h1{font-size:1.5rem;margin-bottom:16px}
.prose-page p{margin-bottom:12px;color:#333}
.error-page{text-align:center;padding:48px 20px 24px}
.error-page h1{font-size:3rem;color:#00695c}
@media(max-width:640px){
.nav-toggle{display:flex}
.site-nav{position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid #eee;padding:12px 20px;display:none}
.site-nav.is-open{display:block}.site-nav ul{flex-direction:column;gap:10px}
}

.wave-hero{position:relative;padding:44px 0 32px;background:linear-gradient(180deg,#e0f2f1 0%,#fff 85%);overflow:hidden}
.wave-hero::after{content:"";position:absolute;bottom:-1px;left:0;right:0;height:48px;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 48'%3E%3Cpath fill='%23fff' d='M0 24 Q300 0 600 24 T1200 24 V48 H0 Z'/%3E%3C/svg%3E") center/cover no-repeat}
.wave-hero .tag{display:inline-block;font-size:.78rem;color:#00695c;border:1px solid #00695c;padding:4px 14px;border-radius:20px;margin-bottom:14px}
.wave-hero h1{font-size:1.85rem;line-height:1.35;margin-bottom:16px;max-width:760px}
.wave-hero .lead{color:#333;font-size:1.02rem;text-align:justify;max-width:760px;margin-bottom:8px}
.wave-body{display:grid;grid-template-columns:220px 1fr;gap:32px;padding:28px 0 40px;align-items:start}
.wave-sidebar{position:sticky;top:80px;background:#e0f2f1;border:2px solid #004d40;padding:18px 16px;border-radius:8px}
.wave-sidebar h2{font-size:.88rem;color:#004d40;margin-bottom:12px;text-transform:uppercase;letter-spacing:.08em}
.wave-sidebar ul{list-style:none}
.wave-sidebar li{margin-bottom:8px}
.wave-sidebar a{font-size:.88rem;color:#00695c;display:block;padding:4px 0;border-bottom:1px dashed #80cbc4}
.wave-sidebar a:hover{color:#004d40;text-decoration:none}
.wave-content section{margin-bottom:36px;padding-bottom:28px;border-bottom:1px solid #e0e0e0}
.wave-content h2{font-size:1.15rem;margin-bottom:14px;color:#004d40}
.wave-content p{margin-bottom:12px;color:#333;text-align:justify;font-size:.96rem}
.wave-content figure{margin:16px 0;border:1px solid #b2dfdb;border-radius:6px;overflow:hidden}
.wave-content figcaption{font-size:.78rem;color:#666;padding:8px 12px;background:#e0f2f1}
.wave-callout{margin:14px 0;padding:12px 14px;background:#fff8e1;border-left:4px solid #ffa000;font-size:.92rem;color:#e65100}
.wave-faq{margin-top:8px}
.wave-faq details{border:1px solid #004d40;margin-bottom:8px;background:#fff;border-radius:4px}
.wave-faq summary{padding:12px 16px;cursor:pointer;font-weight:500;list-style:none}
.wave-faq summary::-webkit-details-marker{display:none}
.wave-faq details[open] summary{background:#e0f2f1;border-bottom:1px solid #b2dfdb}
.wave-faq details p{padding:12px 16px;color:#444;font-size:.93rem}
.related-read{padding:16px 0 40px;border-top:1px solid #ddd}
.related-read h2{font-size:1rem;margin-bottom:12px;text-align:center}
.related-links{display:flex;flex-wrap:wrap;justify-content:center;gap:10px 16px}
.related-links a{font-size:.9rem;padding:6px 12px;border:1px solid #ddd;color:#333}
.related-links a:hover{background:#e0f2f1;text-decoration:none}
@media(max-width:900px){.wave-body{grid-template-columns:1fr}.wave-sidebar{position:static}}