*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Noto Sans SC",system-ui,sans-serif;background:#fff;color:#1e293b;line-height:1.76;font-size:16px}
a{color:#0d9488;text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto;display:block}

.site-header{background:#fff;border-bottom:2px solid #0f766e;position:sticky;top:0;z-index:340}
.header-inner{max-width:1160px;margin:0 auto;padding:12px 20px;display:flex;align-items:center;justify-content:space-between;gap:16px;position:relative}
.brand{display:flex;align-items:center;gap:10px;color:#0f172a;font-weight:600;font-size:.94rem}
.brand:hover{text-decoration:none}
.brand img{border-radius:8px}
.brand em{font-style:normal;color:#0d9488;font-weight:700}
.site-nav ul{display:flex;flex-wrap:wrap;gap:6px 18px;list-style:none}
.site-nav a{color:#64748b;font-size:.9rem;padding:4px 0}
.site-nav a.active,.site-nav a:hover{color:#0f766e;font-weight:600;border-bottom:2px solid #14b8a6;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:#334155;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:#f0fdfa;border-bottom:1px solid #99f6e4;padding:10px 0}
.applist-title{font-size:.78rem;color:#0f766e;text-align:center;margin-bottom:6px}
#ads{display:flex;justify-content:center;flex-wrap:wrap;gap:12px}

.tl-wrap{display:grid;grid-template-columns:minmax(0,1fr) 200px;gap:32px;max-width:1160px;margin:0 auto;padding:28px 20px 40px}
.tl-main{min-width:0}

.tl-hero{background:linear-gradient(145deg,#0f766e 0%,#134e4a 42%,#ecfdf5 100%);border-radius:20px;padding:36px 32px 32px;margin-bottom:40px;color:#fff;scroll-margin-top:88px;position:relative;overflow:hidden}
.tl-hero::after{content:"";position:absolute;right:-40px;top:-40px;width:180px;height:180px;border:3px dashed rgba(255,255,255,.25);border-radius:50%;pointer-events:none}
.tl-hero .tl-tag{display:inline-block;font-size:.76rem;font-weight:600;color:#134e4a;background:#ccfbf1;padding:5px 14px;border-radius:999px;margin-bottom:14px}
.tl-hero h1{font-size:clamp(1.34rem,3.5vw,1.82rem);line-height:1.34;margin-bottom:14px;color:#fff}
.tl-hero .tl-lede{color:#d1fae5;font-size:1.01rem;margin-bottom:10px;text-align:justify}
.tl-hero .tl-lede:last-of-type{margin-bottom:0}
.tl-pills{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.tl-pills span{font-size:.78rem;padding:5px 12px;border-radius:999px;background:rgba(255,255,255,.14);color:#ecfdf5;border:1px solid rgba(255,255,255,.3)}

.tl-stream{list-style:none;position:relative;padding:4px 0 16px}
.tl-stream::before{content:"";position:absolute;left:50%;top:0;bottom:0;width:3px;background:repeating-linear-gradient(180deg,#14b8a6 0,#14b8a6 8px,transparent 8px,transparent 16px);transform:translateX(-50%);border-radius:2px}

.tl-step{position:relative;padding:0 0 40px;scroll-margin-top:88px}
.tl-step:last-child{padding-bottom:8px}
.tl-step__marker{position:absolute;left:50%;top:8px;transform:translateX(-50%) rotate(45deg);width:18px;height:18px;background:#0f766e;border:3px solid #ecfdf5;box-shadow:0 0 0 3px #14b8a6;z-index:2}
.tl-step__body{width:calc(50% - 36px);background:#fff;border:1px solid #ccfbf1;border-radius:16px;padding:22px 24px;box-shadow:0 8px 24px rgba(15,118,110,.08);transition:transform .2s,box-shadow .2s}
.tl-step__body:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(15,118,110,.12)}
.tl-step:nth-child(odd) .tl-step__body{margin-left:0;margin-right:auto}
.tl-step:nth-child(even) .tl-step__body{margin-left:auto;margin-right:0}
.tl-step__body h2{font-size:1.14rem;margin-bottom:11px;color:#0f766e;line-height:1.38}
.tl-step__body p{margin-bottom:10px;color:#334155;text-align:justify;font-size:.97rem}
.tl-step__body figure{margin:16px 0 4px;border-radius:12px;overflow:hidden;border:1px solid #99f6e4;background:#f0fdfa}
.tl-step__body figcaption{font-size:.84rem;color:#64748b;padding:10px 14px;background:#f0fdfa}
.tl-callout{background:#ecfdf5;border-left:4px solid #14b8a6;padding:13px 16px;margin:12px 0;border-radius:0 10px 10px 0;font-size:.93rem;color:#334155}

.tl-faq{margin-top:20px;padding-top:28px;border-top:2px dashed #99f6e4;scroll-margin-top:88px}
.tl-faq>h2{font-size:1.12rem;margin-bottom:16px;color:#0f766e}
.tl-faq details{border:1px solid #ccfbf1;margin-bottom:10px;background:#fff;border-radius:12px;overflow:hidden}
.tl-faq summary{padding:14px 18px;cursor:pointer;font-weight:500;list-style:none;color:#334155}
.tl-faq summary::-webkit-details-marker{display:none}
.tl-faq details[open] summary{background:#f0fdfa;border-bottom:1px solid #ccfbf1;color:#0f766e}
.tl-faq details p{padding:14px 18px;color:#475569;font-size:.94rem}

.tl-side{position:sticky;top:88px;align-self:start;background:#fff;border:2px solid #0f766e;border-radius:16px;padding:18px 14px;box-shadow:0 10px 28px rgba(15,118,110,.1)}
.tl-side h2{font-size:.82rem;color:#0f766e;margin-bottom:12px;letter-spacing:.03em;text-transform:none}
.tl-side ol{list-style:none;counter-reset:tlnav}
.tl-side li{counter-increment:tlnav;margin-bottom:9px}
.tl-side a{font-size:.83rem;color:#0d9488;display:block;padding:3px 0;line-height:1.36}
.tl-side a::before{content:counter(tlnav);display:inline-flex;align-items:center;justify-content:center;width:19px;height:19px;margin-right:6px;font-size:.68rem;font-weight:700;color:#fff;background:#14b8a6;border-radius:4px;transform:rotate(-3deg);vertical-align:middle}
.tl-side a.is-active{color:#0f766e;font-weight:600;text-decoration:none}
.tl-side a.is-active::before{background:#0f766e}

.tl-more{max-width:1160px;margin:0 auto;padding:0 20px 44px}
.tl-more h2{font-size:1.02rem;margin-bottom:12px;color:#0f766e}
.tl-more ul{list-style:none;display:flex;flex-wrap:wrap;gap:10px 20px}
.tl-more a{font-size:.92rem}

.site-footer{background:#f0fdfa;border-top:2px solid #0f766e;padding:28px 20px;text-align:center;font-size:.88rem;color:#64748b}
.footer-links{display:flex;flex-wrap:wrap;justify-content:center;gap:8px 16px;margin-bottom:10px}
.footer-links a{color:#475569}
.footer-sub{font-size:.82rem;color:#0f766e;margin-top:6px}

.prose-page{max-width:780px;margin:0 auto;padding:32px 20px 48px}
.prose-page h1{font-size:1.4rem;margin-bottom:16px;color:#0f766e}
.prose-page p{margin-bottom:12px;color:#475569}

.error-page{max-width:560px;margin:80px auto;padding:20px;text-align:center}
.error-page h1{font-size:3rem;color:#0f766e;margin-bottom:12px}

@media(max-width:900px){
.tl-wrap{grid-template-columns:1fr}
.tl-side{order:-1;position:static;margin-bottom:10px}
.tl-stream::before{left:22px;transform:none}
.tl-step__marker{left:22px;transform:rotate(45deg)}
.tl-step__body{width:calc(100% - 52px);margin-left:52px!important;margin-right:0!important}
.nav-toggle{display:flex}
.site-nav{position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid #99f6e4;padding:12px 20px;display:none;box-shadow:0 6px 16px rgba(0,0,0,.06)}
.site-nav.is-open{display:block}
.site-nav ul{flex-direction:column;gap:10px}
.tl-hero h1{font-size:1.28rem}
}