:root{--brand:#1a936f;--brand-2:#3d5a80;--accent:#f0a500;--bg:#f6f8f7;--surface:#ffffff;--surface-2:rgba(255,255,255,.72);--text:#16201c;--text-2:#4a5a54;--muted:#7d8c86;--border:rgba(22,32,28,.1);--shadow:0 10px 30px rgba(22,32,28,.08);--shadow-lg:0 24px 60px rgba(22,32,28,.14);--radius:20px;--radius-sm:12px;--radius-lg:28px;--blur:14px;--max:1180px;--ease:cubic-bezier(.22,.61,.36,1)}
@media (prefers-color-scheme:dark){:root{--bg:#0e1512;--surface:#151f1b;--surface-2:rgba(21,31,27,.72);--text:#eaf2ee;--text-2:#b8c7c1;--muted:#8ba09a;--border:rgba(234,242,238,.12);--shadow:0 10px 30px rgba(0,0,0,.4);--shadow-lg:0 24px 60px rgba(0,0,0,.55)}}
html[data-theme=dark]{--bg:#0e1512;--surface:#151f1b;--surface-2:rgba(21,31,27,.72);--text:#eaf2ee;--text-2:#b8c7c1;--muted:#8ba09a;--border:rgba(234,242,238,.12);--shadow:0 10px 30px rgba(0,0,0,.4);--shadow-lg:0 24px 60px rgba(0,0,0,.55)}
html[data-theme=light]{--bg:#f6f8f7;--surface:#ffffff;--surface-2:rgba(255,255,255,.72);--text:#16201c;--text-2:#4a5a54;--muted:#7d8c86;--border:rgba(22,32,28,.1);--shadow:0 10px 30px rgba(22,32,28,.08);--shadow-lg:0 24px 60px rgba(22,32,28,.14)}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);line-height:1.75;font-size:16px;overflow-x:hidden;-webkit-font-smoothing:antialiased;transition:background .4s var(--ease),color .4s var(--ease)}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color .25s var(--ease),opacity .25s var(--ease)}
a:hover{color:var(--accent)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{line-height:1.35;margin:0 0 .6em;color:var(--text);font-weight:800;letter-spacing:-.01em}
h1{font-size:clamp(1.7rem,4.6vw,2.9rem)}
h2{font-size:clamp(1.35rem,3.2vw,2.1rem)}
h3{font-size:clamp(1.1rem,2.2vw,1.4rem)}
h4{font-size:1.05rem}
p{margin:0 0 1em;color:var(--text-2)}
strong{color:var(--brand);font-weight:800}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:6px}
::selection{background:var(--brand);color:#fff}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:linear-gradient(180deg,var(--brand),var(--brand-2));border-radius:20px;border:2px solid var(--bg)}
header{position:sticky;top:0;z-index:100;background:var(--surface-2);backdrop-filter:blur(var(--blur)) saturate(160%);-webkit-backdrop-filter:blur(var(--blur)) saturate(160%);border-bottom:1px solid var(--border);transition:box-shadow .3s var(--ease),background .4s var(--ease)}
header nav{max-width:var(--max);margin:0 auto;padding:12px 20px;display:flex;flex-wrap:wrap;align-items:center;gap:14px}
header nav>div{display:flex;align-items:center;gap:12px;margin-right:auto}
header nav>div>a{font-size:1.25rem;font-weight:900;letter-spacing:.02em;background:linear-gradient(120deg,var(--brand),var(--brand-2) 60%,var(--accent));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent;white-space:nowrap}
header nav>div>a:hover{filter:brightness(1.15)}
header nav>div>button{display:none;padding:8px 14px;border-radius:999px;background:var(--brand);color:#fff;font-size:.85rem;font-weight:700;box-shadow:var(--shadow);transition:transform .25s var(--ease),box-shadow .25s var(--ease)}
header nav>div>button:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}
header nav>ul{display:flex;flex-wrap:wrap;align-items:center;gap:4px;order:3;width:100%;justify-content:center;padding-top:6px;border-top:1px dashed var(--border)}
header nav>ul li a{display:block;padding:8px 14px;border-radius:999px;font-size:.9rem;font-weight:600;color:var(--text-2);position:relative;transition:color .25s var(--ease),background .25s var(--ease),transform .25s var(--ease)}
header nav>ul li a::after{content:"";position:absolute;left:50%;bottom:4px;width:0;height:2px;background:linear-gradient(90deg,var(--brand),var(--accent));border-radius:2px;transform:translateX(-50%);transition:width .3s var(--ease)}
header nav>ul li a:hover{color:var(--brand);background:rgba(26,147,111,.1);transform:translateY(-2px)}
header nav>ul li a:hover::after{width:60%}
header nav form[role=search]{display:flex;align-items:center;gap:6px;order:2;flex:1 1 220px;min-width:180px}
header nav form[role=search] label{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
header nav form[role=search] input{flex:1;min-width:0;padding:9px 16px;border-radius:999px;border:1px solid var(--border);background:var(--surface);color:var(--text);font-size:.9rem;transition:border-color .25s var(--ease),box-shadow .25s var(--ease),background .4s var(--ease)}
header nav form[role=search] input::placeholder{color:var(--muted)}
header nav form[role=search] input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(26,147,111,.18)}
header nav form[role=search] button{padding:9px 18px;border-radius:999px;background:linear-gradient(120deg,var(--brand),var(--brand-2));color:#fff;font-size:.9rem;font-weight:700;box-shadow:var(--shadow);transition:transform .25s var(--ease),box-shadow .25s var(--ease),filter .25s var(--ease)}
header nav form[role=search] button:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);filter:brightness(1.08)}
header nav>button[aria-label="切换暗黑模式"]{padding:9px 16px;border-radius:999px;border:1px solid var(--border);background:var(--surface);font-size:.85rem;font-weight:700;color:var(--text-2);transition:all .25s var(--ease);white-space:nowrap}
header nav>button[aria-label="切换暗黑模式"]:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow)}
main{display:block}
main>section,nav[aria-label=面包屑导航]{max-width:var(--max);margin:0 auto;padding:48px 20px}
main>section{opacity:0;transform:translateY(34px);animation:reveal .8s var(--ease) forwards}
main>section:nth-of-type(1){animation-delay:.05s}
main>section:nth-of-type(2){animation-delay:.1s}
main>section:nth-of-type(3){animation-delay:.15s}
main>section:nth-of-type(4){animation-delay:.2s}
main>section:nth-of-type(5){animation-delay:.25s}
main>section:nth-of-type(6){animation-delay:.3s}
main>section:nth-of-type(7){animation-delay:.35s}
main>section:nth-of-type(8){animation-delay:.4s}
main>section:nth-of-type(9){animation-delay:.45s}
main>section:nth-of-type(10){animation-delay:.5s}
@keyframes reveal{to{opacity:1;transform:translateY(0)}}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
@keyframes shine{to{background-position:200% center}}
main>section>h2{position:relative;padding-bottom:14px;margin-bottom:26px}
main>section>h2::after{content:"";position:absolute;left:0;bottom:0;width:72px;height:5px;border-radius:5px;background:linear-gradient(90deg,var(--brand),var(--accent));box-shadow:0 4px 14px rgba(26,147,111,.35)}
#hero{position:relative;max-width:none;padding:64px 20px 56px;background:linear-gradient(135deg,var(--brand) 0%,#14806a 38%,var(--brand-2) 100%);overflow:hidden;color:#fff;border-radius:0 0 var(--radius-lg) var(--radius-lg)}
#hero::before{content:"";position:absolute;top:-30%;right:-12%;width:520px;height:520px;background:radial-gradient(circle,rgba(240,165,0,.45),transparent 66%);border-radius:50%;pointer-events:none}
#hero::after{content:"";position:absolute;bottom:-40%;left:-10%;width:460px;height:460px;background:radial-gradient(circle,rgba(255,255,255,.22),transparent 68%);border-radius:50%;pointer-events:none}
#hero>*{position:relative;z-index:2;max-width:var(--max);margin-left:auto;margin-right:auto}
#hero h1{color:#fff;text-shadow:0 4px 24px rgba(0,0,0,.22)}
#hero p{color:rgba(255,255,255,.92);font-size:clamp(.95rem,1.6vw,1.08rem);max-width:820px}
#hero>div:nth-of-type(1){display:flex;gap:12px;margin:22px auto 30px}
#hero>div:nth-of-type(1) button{padding:10px 22px;border-radius:999px;background:rgba(255,255,255,.16);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.35);color:#fff;font-weight:700;font-size:.9rem;transition:all .3s var(--ease)}
#hero>div:nth-of-type(1) button:hover{background:#fff;color:var(--brand);transform:translateY(-3px);box-shadow:0 16px 34px rgba(0,0,0,.28)}
#hero>div:nth-of-type(2){display:grid;grid-template-columns:1fr;gap:18px}
#hero>div:nth-of-type(2) img{border-radius:var(--radius);box-shadow:var(--shadow-lg);border:1px solid rgba(255,255,255,.22);transition:transform .5s var(--ease),box-shadow .5s var(--ease);animation:floaty 6s ease-in-out infinite}
#hero>div:nth-of-type(2) img:nth-child(2){animation-delay:1.2s}
#hero>div:nth-of-type(2) img:nth-child(3){animation-delay:2.4s}
#hero>div:nth-of-type(2) img:hover{transform:scale(1.02) translateY(-6px);box-shadow:0 34px 70px rgba(0,0,0,.35)}
#stats{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow);margin-top:-34px;position:relative;z-index:5;padding:38px 20px}
#stats ul{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;text-align:center}
#stats li{font-size:.9rem;color:var(--text-2);font-weight:600;padding:14px 8px;border-radius:var(--radius-sm);background:linear-gradient(160deg,rgba(26,147,111,.08),rgba(240,165,0,.06));transition:transform .35s var(--ease),box-shadow .35s var(--ease)}
#stats li:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
#stats li strong{display:block;font-size:clamp(1.5rem,4vw,2.2rem);font-weight:900;letter-spacing:-.02em;background:linear-gradient(100deg,var(--brand),var(--brand-2),var(--accent));background-size:200% auto;-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent;animation:shine 4s linear infinite}
nav[aria-label=面包屑导航]{padding-top:34px;padding-bottom:8px}
nav[aria-label=面包屑导航] ol{display:flex;flex-wrap:wrap;align-items:center;gap:6px;font-size:.85rem;color:var(--muted)}
nav[aria-label=面包屑导航] ol li{display:flex;align-items:center;gap:6px}
nav[aria-label=面包屑导航] ol li+li::before{content:"›";color:var(--muted);font-weight:700}
nav[aria-label=面包屑导航] ol li a{padding:5px 12px;border-radius:999px;background:var(--surface);border:1px solid var(--border);font-weight:600;color:var(--text-2);transition:all .25s var(--ease)}
nav[aria-label=面包屑导航] ol li a:hover{color:#fff;background:linear-gradient(120deg,var(--brand),var(--brand-2));border-color:transparent;transform:translateY(-2px);box-shadow:var(--shadow)}
#brand,#products,#advantages,#solutions,#applications,#cases,#testimonials,#news,#articles,#faq,#howto,#contact,#sitemap,#links,#privacy,#disclaimer,#copyright{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow);margin-top:26px;transition:box-shadow .4s var(--ease),transform .4s var(--ease)}
#brand:hover,#products:hover,#advantages:hover,#solutions:hover,#applications:hover,#cases:hover,#testimonials:hover,#news:hover,#articles:hover,#faq:hover,#howto:hover,#contact:hover,#sitemap:hover,#links:hover,#privacy:hover,#disclaimer:hover,#copyright:hover{box-shadow:var(--shadow-lg)}
#brand h3,#products h3,#advantages h3,#solutions h3,#applications h3,#cases h3,#news h3,#articles h3,#faq h3,#howto h3,#contact h3{margin-top:1.4em;padding-left:16px;border-left:5px solid transparent;border-image:linear-gradient(180deg,var(--brand),var(--accent)) 1;transition:transform .3s var(--ease)}
#brand h3:hover,#products h3:hover,#advantages h3:hover,#solutions h3:hover,#applications h3:hover,#cases h3:hover,#news h3:hover,#articles h3:hover,#faq h3:hover,#howto h3:hover,#contact h3:hover{transform:translateX(6px)}
#brand h4,#products h4{margin-top:1.2em;color:var(--brand);font-weight:800}
#products>p:first-of-type,#brand>p:first-of-type{font-size:1.03rem}
#advantages p,#solutions p,#applications p,#cases p,#testimonials p,#news p,#articles p,#faq p,#howto p,#contact p,#privacy p,#disclaimer p,#copyright p{color:var(--text-2)}
#advantages>h3,#solutions>h3,#applications>h3,#cases>h3{background:linear-gradient(160deg,rgba(26,147,111,.09),rgba(61,90,128,.06));padding:14px 18px;border-radius:var(--radius-sm);border-left:5px solid var(--brand);transition:transform .3s var(--ease),box-shadow .3s var(--ease),background .3s var(--ease)}
#advantages>h3:hover,#solutions>h3:hover,#applications>h3:hover,#cases>h3:hover{transform:translateX(8px);box-shadow:var(--shadow);background:linear-gradient(160deg,rgba(26,147,111,.16),rgba(240,165,0,.1))}
#news article,#articles article,#faq article{position:relative;padding:22px 24px;margin-bottom:18px;border-radius:var(--radius);border:1px solid var(--border);background:linear-gradient(150deg,var(--surface),rgba(26,147,111,.05));box-shadow:var(--shadow);transition:transform .4s var(--ease),box-shadow .4s var(--ease),border-color .4s var(--ease);overflow:hidden}
#news article::before,#articles article::before,#faq article::before{content:"";position:absolute;left:0;top:0;bottom:0;width:5px;background:linear-gradient(180deg,var(--brand),var(--accent));transform:scaleY(0);transform-origin:top;transition:transform .4s var(--ease)}
#news article:hover,#articles article:hover,#faq article:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:rgba(26,147,111,.4)}
#news article:hover::before,#articles article:hover::before,#faq article:hover::before{transform:scaleY(1)}
#news article h3,#articles article h3,#faq article h3{margin-top:0;font-size:1.12rem;color:var(--text)}
#news article p:first-of-type,#articles article p:first-of-type{font-size:.82rem;color:var(--muted);font-weight:700;letter-spacing:.02em}
#news article a,#articles article a{display:inline-flex;align-items:center;gap:6px;font-weight:800;font-size:.9rem;padding:8px 18px;border-radius:999px;background:linear-gradient(120deg,var(--brand),var(--brand-2));color:#fff;box-shadow:var(--shadow);transition:transform .3s var(--ease),box-shadow .3s var(--ease),filter .3s var(--ease)}
#news article a::after,#articles article a::after{content:"→";transition:transform .3s var(--ease)}
#news article a:hover,#articles article a:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);filter:brightness(1.1);color:#fff}
#news article a:hover::after,#articles article a:hover::after{transform:translateX(4px)}
#testimonials blockquote{position:relative;margin:0 0 18px;padding:24px 26px 24px 60px;border-radius:var(--radius);background:var(--surface-2);backdrop-filter:blur(var(--blur));-webkit-backdrop-filter:blur(var(--blur));border:1px solid var(--border);box-shadow:var(--shadow);transition:transform .4s var(--ease),box-shadow .4s var(--ease)}
#testimonials blockquote::before{content:"“";position:absolute;left:18px;top:6px;font-size:4rem;line-height:1;font-family:Georgia,serif;background:linear-gradient(140deg,var(--brand),var(--accent));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent}
#testimonials blockquote p{margin:0;color:var(--text-2);font-style:italic}
#testimonials blockquote:hover{transform:translateY(-6px) scale(1.01);box-shadow:var(--shadow-lg)}
#howto ol{counter-reset:step;display:grid;gap:14px;margin:20px 0}
#howto ol li{counter-increment:step;position:relative;padding:16px 20px 16px 62px;border-radius:var(--radius-sm);background:linear-gradient(150deg,rgba(26,147,111,.08),rgba(61,90,128,.05));border:1px solid var(--border);color:var(--text-2);font-weight:500;transition:transform .35s var(--ease),box-shadow .35s var(--ease)}
#howto ol li::before{content:counter(step);position:absolute;left:16px;top:50%;transform:translateY(-50%);width:32px;height:32px;display:grid;place-items:center;border-radius:50%;background:linear-gradient(140deg,var(--brand),var(--brand-2));color:#fff;font-weight:900;font-size:.9rem;box-shadow:0 6px 16px rgba(26,147,111,.4)}
#howto ol li:hover{transform:translateX(8px);box-shadow:var(--shadow)}
#howto ul,#sitemap ul,#links ul{display:grid;gap:10px;margin:16px 0}
#howto ul li{position:relative;padding:12px 16px 12px 40px;border-radius:var(--radius-sm);background:var(--surface-2);border:1px solid var(--border);color:var(--text-2);transition:transform .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease)}
#howto ul li::before{content:"";position:absolute;left:16px;top:50%;transform:translateY(-50%);width:9px;height:9px;border-radius:50%;background:linear-gradient(140deg,var(--brand),var(--accent));box-shadow:0 0 0 4px rgba(26,147,111,.14)}
#howto ul li:hover{transform:translateX(6px);border-color:var(--brand);box-shadow:var(--shadow)}
#sitemap ul,#links ul{grid-template-columns:repeat(auto-fill,minmax(180px,1fr))}
#sitemap ul li a,#links ul li a{display:block;padding:12px 18px;border-radius:var(--radius-sm);background:var(--surface-2);border:1px solid var(--border);font-weight:700;font-size:.9rem;color:var(--text-2);text-align:center;transition:all .3s var(--ease)}
#sitemap ul li a:hover,#links ul li a:hover{color:#fff;background:linear-gradient(120deg,var(--brand),var(--brand-2));border-color:transparent;transform:translateY(-4px);box-shadow:var(--shadow-lg)}
#contact p{display:flex;flex-wrap:wrap;gap:6px;padding:10px 0;border-bottom:1px dashed var(--border);margin:0}
#contact p:last-of-type{border-bottom:none}
#contact p a{font-weight:800;word-break:break-all}
#contact h3{margin-top:1.6em}
#privacy,#disclaimer,#copyright{background:linear-gradient(150deg,var(--surface),rgba(61,90,128,.06))}
footer{max-width:none;margin-top:40px;padding:44px 20px 60px;background:linear-gradient(160deg,#0f1a16,#16241f 55%,#0e1512);color:rgba(255,255,255,.78);text-align:center;border-radius:var(--radius-lg) var(--radius-lg) 0 0;position:relative;overflow:hidden}
footer::before{content:"";position:absolute;top:-60%;left:50%;transform:translateX(-50%);width:700px;height:700px;background:radial-gradient(circle,rgba(26,147,111,.4),transparent 65%);pointer-events:none}
footer>*{position:relative;z-index:2;max-width:var(--max);margin-left:auto;margin-right:auto}
footer p{margin:0 0 10px;color:rgba(255,255,255,.72);font-size:.88rem}
footer p:first-of-type{font-weight:800;font-size:1rem;color:#fff;letter-spacing:.02em}
footer p a{color:var(--accent);font-weight:700}
footer p a:hover{color:#fff;text-decoration:underline}
footer button[aria-label=返回顶部]{margin-top:18px;padding:12px 30px;border-radius:999px;background:linear-gradient(120deg,var(--brand),var(--accent));color:#fff;font-weight:800;font-size:.9rem;box-shadow:0 14px 34px rgba(26,147,111,.4);transition:transform .3s var(--ease),box-shadow .3s var(--ease),filter .3s var(--ease)}
footer button[aria-label=返回顶部]:hover{transform:translateY(-4px) scale(1.04);box-shadow:0 22px 48px rgba(240,165,0,.45);filter:brightness(1.08)}
@media (min-width:640px){
#hero{padding:76px 20px 66px}
#stats ul{grid-template-columns:repeat(4,1fr)}
#hero>div:nth-of-type(2){grid-template-columns:repeat(3,1fr)}
}
@media (min-width:900px){
header nav{flex-wrap:nowrap;gap:16px;padding:14px 24px}
header nav>div>button{display:none}
header nav>ul{order:0;width:auto;justify-content:flex-start;border-top:none;padding-top:0;flex:1;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none}
header nav>ul::-webkit-scrollbar{display:none}
header nav>ul li a{font-size:.88rem;padding:8px 12px;white-space:nowrap}
header nav form[role=search]{order:0;flex:0 1 240px}
main>section,nav[aria-label=面包屑导航]{padding-left:32px;padding-right:32px}
#hero{padding:92px 32px 78px}
#hero>div:nth-of-type(2){gap:24px}
#news,#articles{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;align-items:start}
#news>h2,#articles>h2,#news>p,#articles>p{grid-column:1/-1}
#news article,#articles article{margin-bottom:0}
#faq{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;align-items:start}
#faq>h2{grid-column:1/-1}
#faq article{margin-bottom:0}
#testimonials{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;align-items:start}
#testimonials>h2{grid-column:1/-1}
#testimonials blockquote{margin-bottom:0}
#contact{display:grid;grid-template-columns:1.1fr 1fr;gap:0 34px;align-items:start}
#contact>h2,#contact>p:first-of-type{grid-column:1/-1}
}
@media (min-width:1100px){
#articles{grid-template-columns:repeat(3,1fr)}
#faq{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:899px){
header nav>ul{max-height:0;overflow:hidden;opacity:0;transition:max-height .45s var(--ease),opacity .35s var(--ease)}
header nav>div>button{display:inline-block}
}
@media (prefers-reduced-motion:reduce){
*,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
main>section{opacity:1;transform:none}
}