*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
body{font-family:"Noto Sans SC",system-ui,sans-serif;background:#fff;color:#1c1917;line-height:1.78;font-size:16px}
a{color:#0f766e;text-decoration:none}
a:hover{text-decoration:underline;color:#115e59}
img{max-width:100%;height:auto;display:block}

.site-header{background:#fff;border-bottom:2px solid #0f766e;position:sticky;top:0;z-index:400}
.header-inner{max-width:640px;margin:0 auto;padding:14px 22px;display:flex;align-items:center;justify-content:space-between;gap:14px}
.brand{display:flex;align-items:center;gap:10px;color:#111;font-weight:600;font-size:.93rem;line-height:1.35}
.brand em{font-style:normal;color:#0f766e;font-weight:700}
.site-nav ul{display:flex;flex-wrap:wrap;gap:6px 16px;list-style:none}
.site-nav a{color:#57534e;font-size:.88rem}
.site-nav a.active{color:#0f766e;font-weight:600;border-bottom:2px solid #ea580c;padding-bottom:2px}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{display:block;width:22px;height:2px;background:#292524;margin:5px 0;border-radius:1px}

.ads-top-bar{background:#f0fdfa;border-bottom:1px solid #99f6e4;padding:10px 0}
#applist .applist-title{font-size:.82rem;color:#64748b;margin-bottom:8px}
#ads{display:flex;flex-wrap:wrap;gap:12px}

.single-wrap{max-width:640px;margin:0 auto;padding:0 22px 72px}
.single-stream{display:flex;flex-direction:column}

.stream-toc{position:sticky;top:60px;z-index:200;background:rgba(255,255,255,.97);backdrop-filter:blur(8px);border-bottom:1px solid #e7e5e4;padding:12px 0 14px;margin-bottom:20px}
.stream-toc ul{display:flex;flex-wrap:wrap;gap:7px 8px;list-style:none;justify-content:flex-start}
.stream-toc a{font-size:.76rem;color:#78716c;background:#fafaf9;padding:5px 11px;border-radius:6px;border:1px solid #d6d3d1;white-space:nowrap;transition:all .15s}
.stream-toc a.is-active,.stream-toc a:hover{color:#fff;background:#0f766e;border-color:#0f766e;text-decoration:none}

.stream-hero{padding:36px 0 30px;border-bottom:3px double #d6d3d1;margin-bottom:4px}
.stream-hero .hero-badge{display:inline-block;font-size:.78rem;color:#134e4a;background:#ccfbf1;padding:5px 14px;border-radius:2px;margin-bottom:16px;letter-spacing:.04em;font-weight:500}
.stream-hero h1{font-size:clamp(1.38rem,4.2vw,1.95rem);line-height:1.34;margin-bottom:18px;color:#0c0a09;font-weight:700}
.stream-hero .hero-lede{font-size:1rem;color:#44403c;margin-bottom:13px;text-align:justify}
.stream-hero .hero-meta{font-size:.84rem;color:#a8a29e;margin-top:20px;padding-top:16px;border-top:1px solid #e7e5e4;letter-spacing:.02em}

.stream-section{padding:30px 0;border-bottom:1px solid #f5f5f4}
.stream-section:last-of-type{border-bottom:0}
.stream-section h2{font-size:1.16rem;margin-bottom:16px;color:#0c0a09;font-weight:700;padding-bottom:8px;border-bottom:2px solid #ea580c;display:inline-block;line-height:1.45}
.stream-section p{margin-bottom:14px;color:#292524;font-size:.96rem;text-align:justify}
.stream-section ul,.stream-section ol{margin:0 0 14px 1.3rem;color:#292524;font-size:.95rem}
.stream-section li{margin-bottom:7px}

.stream-callout{background:#fff7ed;border-left:4px solid #ea580c;border-radius:0 8px 8px 0;padding:16px 18px;margin:18px 0;font-size:.93rem;color:#7c2d12}
.stream-callout strong{color:#c2410c}

.stream-pull{font-size:1.05rem;font-weight:500;color:#134e4a;background:#f0fdfa;padding:14px 18px;margin:20px 0;line-height:1.58;border-radius:8px;border:1px solid #99f6e4}

.stream-figure{margin:22px 0;border-radius:8px;overflow:hidden;border:1px solid #e7e5e4;box-shadow:0 2px 8px rgba(15,118,110,.06)}
.stream-figure img{width:100%}
.stream-figure figcaption{font-size:.79rem;color:#78716c;padding:11px 16px;text-align:left;background:#fafaf9;border-top:1px solid #f5f5f4}

.stream-steps{counter-reset:step;margin:18px 0;padding:0;list-style:none}
.stream-steps li{counter-increment:step;position:relative;padding:14px 0 14px 48px;border-bottom:1px dashed #e7e5e4;font-size:.94rem}
.stream-steps li::before{content:counter(step);position:absolute;left:0;top:14px;width:32px;height:32px;background:#0f766e;color:#fff;border-radius:4px;font-size:.85rem;font-weight:700;display:flex;align-items:center;justify-content:center}

.faq-zone{padding:34px 0 18px;margin-top:10px;background:linear-gradient(180deg,#fafaf9 0%,#fff 100%);border-radius:12px;padding-left:4px;padding-right:4px}
.faq-zone h2{font-size:1.14rem;margin-bottom:20px;padding-bottom:8px;border-bottom:2px solid #0f766e;display:inline-block}
.faq-item{border-bottom:1px solid #e7e5e4;padding:16px 0}
.faq-item:last-child{border-bottom:0}
.faq-item h3{font-size:.98rem;margin-bottom:9px;color:#0c0a09;font-weight:600}
.faq-item p{font-size:.93rem;color:#44403c;margin:0;line-height:1.72}

.related-zone{padding:26px 0;border-top:3px double #d6d3d1;margin-top:16px}
.related-zone h2{font-size:1.04rem;margin-bottom:12px;color:#0f766e}
.related-zone ul{padding-left:1.25rem;line-height:2;font-size:.93rem;color:#44403c}

.site-footer{background:#fafaf9;border-top:1px solid #e7e5e4;padding:30px 22px;text-align:center;font-size:.86rem;color:#78716c}
.footer-links{display:flex;flex-wrap:wrap;justify-content:center;gap:8px 22px;margin-bottom:10px}
.footer-sub{font-size:.8rem;color:#a8a29e;margin-top:8px}
.prose-page{max-width:640px;margin:44px auto;padding:0 22px}
.prose-page h1{font-size:1.38rem;margin-bottom:16px;color:#0c0a09}
.error-page{max-width:480px;margin:80px auto;padding:0 22px;text-align:center}

@media(max-width:768px){
  .nav-toggle{display:block}
  .site-nav{display:none;position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid #e7e5e4;padding:14px 22px;box-shadow:0 10px 28px rgba(0,0,0,.07)}
  .site-nav.is-open{display:block}
  .site-nav ul{flex-direction:column;gap:12px}
  .header-inner{position:relative;flex-wrap:wrap}
  .stream-toc{top:54px}
  .stream-toc ul{gap:5px 5px}
  .stream-toc a{font-size:.72rem;padding:4px 9px}
}