:root{--bg:#060e08;--panel:#0c1a10;--panel-soft:#122618;--text:#e8f5e9;--muted:#81c784;--line:rgba(74,222,128,.12);--green:#4ADE80;--green-dark:#166534;--gold:#c99a59;--shadow:0 20px 44px rgba(0,0,0,.35);--radius-lg:24px;--radius-md:16px;--radius-sm:10px;--max:1200px}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:radial-gradient(circle at top right,rgba(74,222,128,.08),transparent 30%),radial-gradient(circle at left top,rgba(201,154,89,.06),transparent 25%),linear-gradient(180deg,#060e08 0%,#081210 50%,#060e08 100%);color:var(--text);line-height:1.78}
a{color:inherit;text-decoration:none;transition:.2s}
img{display:block;max-width:100%;height:auto}
button,input{font:inherit}
.container{width:min(var(--max),calc(100% - 32px));margin:0 auto}
.skip-link{position:absolute;left:-999px;top:0}
.skip-link:focus{left:16px;top:16px;background:#fff;color:#111;padding:10px 14px;border-radius:12px;z-index:999}
.site-header{position:sticky;top:0;z-index:50;backdrop-filter:blur(18px);background:rgba(6,14,8,.88);border-bottom:1px solid var(--line)}
.topbar{display:flex;justify-content:space-between;align-items:center;padding:14px 0;gap:20px}
.logo-wrap{display:inline-flex;align-items:center;gap:12px}
.logo-wrap img{height:48px;width:auto}
.main-nav{display:flex;gap:6px;flex-wrap:wrap;align-items:center}
.main-nav a{padding:8px 14px;border-radius:999px;color:var(--muted);border:1px solid transparent;font-size:15px;transition:.22s}
.main-nav a:hover,.main-nav a.active{color:var(--text);background:rgba(74,222,128,.1);border-color:rgba(74,222,128,.25)}
.search-strip{padding:10px 0 14px}
.search-form{display:grid;grid-template-columns:1fr auto;gap:10px;padding:12px;border-radius:18px;background:rgba(12,26,16,.9);border:1px solid var(--line)}
.search-form input{width:100%;padding:12px 16px;border-radius:12px;border:1px solid rgba(255,255,255,.08);background:rgba(255,255,255,.03);color:var(--text);font-size:15px}
.search-form input::placeholder{color:var(--muted)}
.search-form button,.primary-btn,.share-btn{border:none;border-radius:12px;padding:12px 20px;background:linear-gradient(135deg,var(--green),#86EFAC);color:#0a1a0f;font-weight:700;cursor:pointer;transition:.22s}
.search-form button:hover,.primary-btn:hover,.share-btn:hover{transform:translateY(-1px);box-shadow:0 4px 20px rgba(74,222,128,.3)}
.search-tips{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.search-tips span,.tag{border:1px solid rgba(74,222,128,.2);color:var(--muted);padding:5px 12px;border-radius:999px;font-size:12px;letter-spacing:.08em}
.hero{position:relative;padding:0;overflow:hidden;border-radius:var(--radius-lg);margin:20px auto;max-width:var(--max)}
.hero-bg{width:100%;height:520px;object-fit:cover;border-radius:var(--radius-lg)}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,14,8,.2) 0%,rgba(6,14,8,.85) 70%);border-radius:var(--radius-lg);display:flex;flex-direction:column;justify-content:flex-end;padding:40px}
.hero h1{font-size:clamp(2rem,5vw,3.6rem);line-height:1.12;margin-bottom:16px;font-family:"Songti SC","STSong","Source Han Serif SC",serif}
.hero .lead{font-size:17px;color:#c8e6c9;max-width:65ch;margin-bottom:20px}
.hero-stats{display:flex;gap:16px;flex-wrap:wrap}
.hero-stats span{padding:8px 14px;border-radius:999px;background:rgba(74,222,128,.12);border:1px solid rgba(74,222,128,.2);font-size:13px;color:#a5d6a7}
.section{padding:30px 0}
.section-head{display:flex;justify-content:space-between;align-items:end;margin-bottom:22px;gap:16px}
.section-head h2{font-size:clamp(1.4rem,3vw,2rem);font-family:"Songti SC","STSong","Source Han Serif SC",serif}
.section-head p{max-width:60ch;color:var(--muted);margin:0}
.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.video-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;cursor:pointer;transition:.28s}
.video-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.video-thumb{position:relative;aspect-ratio:16/9;overflow:hidden}
.video-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s}
.video-card:hover .video-thumb img{transform:scale(1.04)}
.play-overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(6,14,8,.4);opacity:0;transition:.25s}
.video-card:hover .play-overlay{opacity:1}
.play-btn{width:60px;height:60px;border-radius:50%;background:rgba(74,222,128,.85);display:flex;align-items:center;justify-content:center;border:2px solid rgba(255,255,255,.3)}
.play-btn::after{content:"";width:0;height:0;border-left:20px solid #fff;border-top:12px solid transparent;border-bottom:12px solid transparent;margin-left:4px}
.video-bits{position:absolute;top:10px;left:10px;right:10px;display:flex;justify-content:space-between}
.video-bits span{padding:4px 10px;border-radius:999px;background:rgba(6,14,8,.7);border:1px solid rgba(255,255,255,.08);font-size:12px;color:#c8e6c9}
.video-body{padding:16px}
.video-body h3{font-size:1.1rem;margin-bottom:8px;line-height:1.4}
.video-body p{color:var(--muted);font-size:14px;line-height:1.6}
.video-meta{display:flex;gap:12px;margin-top:10px;font-size:12px;color:var(--muted)}
.tags{display:flex;gap:6px;flex-wrap:wrap;margin-top:10px}
.panel{background:linear-gradient(180deg,rgba(12,26,16,.96),rgba(6,14,8,.96));border:1px solid var(--line);border-radius:var(--radius-lg);padding:30px;position:relative;overflow:hidden;box-shadow:var(--shadow)}
.panel::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at top left,rgba(74,222,128,.1),transparent 40%);pointer-events:none}
.content-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.expert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.expert-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);padding:20px;text-align:center}
.expert-card img{width:80px;height:80px;border-radius:50%;margin:0 auto 12px;object-fit:cover;border:2px solid var(--green)}
.expert-card h4{margin-bottom:4px}
.expert-card .role{color:var(--muted);font-size:13px;margin-bottom:8px}
.expert-actions{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-top:12px}
.expert-actions a{padding:8px 14px;border-radius:10px;font-size:13px;border:1px solid var(--line);color:var(--text);transition:.2s}
.expert-actions a:first-child{background:linear-gradient(135deg,var(--green),#86EFAC);color:#0a1a0f;border:none;font-weight:600}
.expert-actions a:hover{transform:translateY(-1px)}
.brand-wall{display:flex;gap:14px;flex-wrap:wrap;justify-content:center;padding:20px 0}
.brand-chip{padding:12px 20px;border-radius:999px;background:var(--panel);border:1px solid var(--line);font-size:14px;color:var(--muted)}
.review-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.review-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);padding:20px}
.review-card .stars{color:#fbbf24;margin-bottom:8px}
.review-card blockquote{font-style:italic;color:#c8e6c9;margin-bottom:10px;line-height:1.7}
.review-card cite{color:var(--muted);font-size:13px}
.faq-grid{display:grid;gap:12px}
.faq-item{border-radius:var(--radius-md);background:var(--panel);border:1px solid var(--line);overflow:hidden}
.faq-item summary{padding:16px 20px;cursor:pointer;font-weight:700;list-style:none;display:flex;justify-content:space-between;align-items:center}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:20px;color:var(--green);transition:.2s}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .faq-body{padding:0 20px 16px;color:var(--muted);line-height:1.7}
.share-grid{display:flex;gap:12px;flex-wrap:wrap}
.share-btn{display:inline-flex;align-items:center;gap:8px;padding:10px 18px;border-radius:12px;font-size:14px}
.json-box{border-radius:var(--radius-md);overflow:hidden;border:1px solid var(--line);margin-top:16px;background:rgba(6,14,8,.95)}
.json-title{padding:10px 16px;border-bottom:1px solid var(--line);color:var(--green);font-size:12px;letter-spacing:.1em;text-transform:uppercase}
.json-box pre{margin:0;padding:14px;overflow:auto;color:#a5d6a7;font-size:12px;line-height:1.7;background:rgba(6,14,8,.98)}
.footer{padding:30px 0 20px;border-top:1px solid var(--line)}
.footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:20px}
.footer-section{padding:24px;border-radius:var(--radius-lg);background:var(--panel);border:1px solid var(--line)}
.footer-section h3{margin-bottom:12px;font-size:1.1rem}
.footer-section p,.footer-section li{color:var(--muted);font-size:14px;line-height:1.8}
.footer-section ul{list-style:none}
.footer-bottom{text-align:center;padding:20px 0;color:var(--muted);font-size:13px;border-top:1px solid var(--line);margin-top:20px}
.qr-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.qr-grid figure{margin:0;text-align:center}
.qr-grid img{width:120px;height:120px;margin:0 auto;border-radius:12px}
.qr-grid figcaption{font-size:12px;color:var(--muted);margin-top:6px}
.breadcrumb{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}
.breadcrumb a,.breadcrumb span{color:var(--muted);font-size:12px;letter-spacing:.06em}
.breadcrumb a::after{content:"/";margin-left:8px;color:rgba(255,255,255,.2)}
.info-table{width:100%;border-collapse:collapse;border-radius:var(--radius-md);overflow:hidden;margin-top:16px}
.info-table th,.info-table td{padding:12px 16px;border-bottom:1px solid var(--line);text-align:left}
.info-table th{color:var(--green);width:28%;background:rgba(74,222,128,.04)}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%) translateY(120%);min-width:260px;max-width:min(92vw,500px);padding:14px 18px;border-radius:14px;background:rgba(12,26,16,.94);color:var(--text);border:1px solid var(--line);box-shadow:var(--shadow);transition:.26s;z-index:99}
.toast.show{transform:translateX(-50%) translateY(0)}
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:18px}
.metric-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-md);padding:16px;text-align:center}
.metric-value{display:block;font-size:clamp(1.4rem,2vw,2rem);font-weight:800;color:var(--green)}
.metric-label{font-size:13px;color:var(--muted);margin-top:4px}
.page-hero{padding:30px 0 16px}
.page-hero-inner{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);padding:34px;position:relative;overflow:hidden}
.page-hero-inner::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at top left,rgba(74,222,128,.12),transparent 40%);pointer-events:none}
.ghost-btn{display:inline-flex;padding:10px 18px;border-radius:12px;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.02);color:var(--text);transition:.2s;font-size:14px}
.ghost-btn:hover{background:rgba(74,222,128,.08);border-color:rgba(74,222,128,.25)}
.tool-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.tool-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);padding:24px}
.tool-card h3{margin-bottom:8px}
.tool-card p{color:var(--muted);font-size:14px}
.story-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.story-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);padding:20px}
.story-card h3{margin-bottom:8px}
.story-card p{color:var(--muted);font-size:14px;line-height:1.7}
.nh-fvuchd{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}
@media(max-width:1024px){.video-grid{grid-template-columns:repeat(2,1fr)}.expert-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr}.content-grid{grid-template-columns:1fr}.metric-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.video-grid,.review-grid,.tool-grid,.story-grid,.qr-grid{grid-template-columns:1fr}.expert-grid{grid-template-columns:1fr}.topbar{flex-direction:column;gap:10px}.main-nav{justify-content:center}.hero-bg{height:320px}.hero-overlay{padding:24px}.search-form{grid-template-columns:1fr}.metric-grid{grid-template-columns:1fr}}