:root{--primary:#ff6b35;--primary-dark:#e55a2b;--primary-light:#ff8c5f;--secondary:#6a4c93;--secondary-light:#8b6bb1;--accent:#2d3e50;--bg:#f7f8fa;--bg-alt:#ffffff;--bg-card:#ffffff;--text:#222222;--text-secondary:#555555;--text-muted:#888888;--border:#e8e8e8;--shadow:0 4px 20px rgba(0,0,0,.08);--shadow-hover:0 12px 32px rgba(0,0,0,.14);--radius:16px;--radius-sm:10px;--radius-xs:6px;--glass-bg:rgba(255,255,255,.72);--glass-border:rgba(255,255,255,.35);--header-h:68px;--transition:.3s cubic-bezier(.4,0,.2,1);--font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif}

[data-theme="dark"]{--bg:#121218;--bg-alt:#1a1a24;--bg-card:#1e1e2a;--text:#e8e8f0;--text-secondary:#b0b0c0;--text-muted:#787890;--border:#2a2a3a;--shadow:0 4px 20px rgba(0,0,0,.35);--shadow-hover:0 12px 32px rgba(0,0,0,.5);--glass-bg:rgba(30,30,42,.78);--glass-border:rgba(255,255,255,.08)}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 16px);-webkit-text-size-adjust:100%}

body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.75;font-size:16px;overflow-x:hidden;transition:background var(--transition),color var(--transition)}

a{color:var(--primary);text-decoration:none;transition:color var(--transition)}

a:hover{color:var(--primary-dark)}

img,svg{max-width:100%;height:auto;display:block}

ul,ol{padding-left:1.4em}

li{margin-bottom:.35em}

.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

#site-header{position:sticky;top:0;z-index:100;background:var(--glass-bg);backdrop-filter:blur(18px) saturate(1.6);-webkit-backdrop-filter:blur(18px) saturate(1.6);border-bottom:1px solid var(--glass-border);transition:background var(--transition),border-color var(--transition),box-shadow var(--transition)}

#site-header.scrolled{box-shadow:0 2px 20px rgba(0,0,0,.1)}

[data-theme="dark"] #site-header.scrolled{box-shadow:0 2px 20px rgba(0,0,0,.4)}

.header-inner{max-width:1280px;margin:0 auto;padding:0 20px;height:var(--header-h);display:flex;align-items:center;gap:16px;flex-wrap:nowrap}

.logo{flex-shrink:0;display:flex;align-items:center;transition:transform var(--transition),opacity var(--transition);border-radius:var(--radius-sm)}

.logo:hover{transform:scale(1.04);opacity:.9}

.logo svg{height:40px;width:auto}

#main-nav{flex:1;min-width:0}

#main-nav ul{display:flex;list-style:none;padding:0;margin:0;gap:2px;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}

#main-nav ul::-webkit-scrollbar{display:none}

#main-nav a{display:block;padding:8px 12px;font-size:14px;color:var(--text-secondary);border-radius:var(--radius-xs);white-space:nowrap;position:relative;transition:color var(--transition),background var(--transition)}

#main-nav a::after{content:"";position:absolute;bottom:2px;left:50%;transform:translateX(-50%) scaleX(0);width:60%;height:2px;background:var(--primary);border-radius:2px;transition:transform var(--transition)}

#main-nav a:hover{color:var(--primary);background:rgba(255,107,53,.08)}

#main-nav a:hover::after{transform:translateX(-50%) scaleX(1)}

#mobile-menu-toggle,#dark-mode-toggle{display:none;background:var(--bg-card);border:1px solid var(--border);color:var(--text);width:40px;height:40px;border-radius:var(--radius-sm);font-size:18px;cursor:pointer;flex-shrink:0;transition:all var(--transition);line-height:1;align-items:center;justify-content:center}

#dark-mode-toggle{display:flex}

#mobile-menu-toggle:hover,#dark-mode-toggle:hover{background:var(--primary);color:#fff;border-color:var(--primary);transform:translateY(-2px);box-shadow:0 4px 12px rgba(255,107,53,.3)}

#site-search{display:flex;flex-shrink:0;position:relative}

#site-search input[type="search"]{width:200px;padding:9px 16px;border:1px solid var(--border);border-radius:24px;background:var(--bg-card);color:var(--text);font-size:14px;font-family:var(--font);outline:none;transition:all var(--transition)}

#site-search input[type="search"]::placeholder{color:var(--text-muted)}

#site-search input[type="search"]:focus{width:260px;border-color:var(--primary);box-shadow:0 0 0 3px rgba(255,107,53,.15)}

#site-search button{position:absolute;right:4px;top:50%;transform:translateY(-50%);padding:6px 14px;border:none;border-radius:20px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;font-size:13px;font-family:var(--font);cursor:pointer;transition:all var(--transition)}

#site-search button:hover{filter:brightness(1.1);transform:translateY(-50%) scale(1.05)}

#banner{position:relative;overflow:hidden;border-radius:0 0 var(--radius) var(--radius);margin-bottom:40px}

.banner-slide{position:relative;overflow:hidden;animation:fadeSlide .8s ease both}

.banner-slide:nth-child(2){animation-delay:.15s}

.banner-slide:nth-child(3){animation-delay:.3s}

.banner-slide svg{width:100%;height:auto;display:block;transition:transform .6s ease}

.banner-slide:hover svg{transform:scale(1.02)}

.banner-controls{position:absolute;bottom:20px;right:24px;display:flex;gap:10px;z-index:2}

.banner-controls button{padding:8px 20px;border:1px solid var(--glass-border);border-radius:24px;background:var(--glass-bg);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);color:var(--text);font-size:13px;font-family:var(--font);cursor:pointer;transition:all var(--transition)}

.banner-controls button:hover{background:var(--primary);color:#fff;border-color:var(--primary);transform:translateY(-2px);box-shadow:0 6px 16px rgba(255,107,53,.35)}

@keyframes fadeSlide{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}

main{max-width:1280px;margin:0 auto;padding:0 20px 60px}

section{margin-bottom:56px;scroll-margin-top:calc(var(--header-h) + 16px)}

#intro{background:var(--bg-card);border-radius:var(--radius);padding:40px 36px;box-shadow:var(--shadow);border:1px solid var(--border);position:relative;overflow:hidden;transition:background var(--transition),border-color var(--transition),box-shadow var(--transition)}

#intro::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--primary),var(--primary-light),var(--secondary),var(--secondary-light));background-size:300% 100%;animation:gradientShift 6s ease infinite}

@keyframes gradientShift{0%,100%{background-position:0% 50%}50%{background-position:100% 50%}}

#intro h1{font-size:clamp(1.5rem,3.5vw,2.2rem);line-height:1.35;margin-bottom:20px;background:linear-gradient(135deg,var(--primary),var(--secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}

#intro p{color:var(--text-secondary);margin-bottom:16px;font-size:15px}

.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:32px}

.stat-item{text-align:center;padding:24px 12px;background:linear-gradient(135deg,rgba(255,107,53,.08),rgba(106,76,147,.08));border-radius:var(--radius-sm);border:1px solid var(--border);transition:all var(--transition);position:relative;overflow:hidden}

.stat-item::after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(255,107,53,.12),rgba(106,76,147,.12));opacity:0;transition:opacity var(--transition)}

.stat-item:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:var(--primary)}

.stat-item:hover::after{opacity:1}

.stat-item .num{display:block;font-size:clamp(1.6rem,3vw,2.2rem);font-weight:800;background:linear-gradient(135deg,var(--primary),var(--secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;position:relative;z-index:1}

.stat-item{position:relative;z-index:0}

nav[aria-label="面包屑导航"]{margin-bottom:36px;padding:12px 20px;background:var(--bg-card);border-radius:var(--radius-sm);border:1px solid var(--border);transition:background var(--transition),border-color var(--transition)}

nav[aria-label="面包屑导航"] ol{display:flex;flex-wrap:wrap;list-style:none;padding:0;margin:0;gap:6px;font-size:14px;color:var(--text-muted)}

nav[aria-label="面包屑导航"] li{display:flex;align-items:center;gap:6px;margin:0}

nav[aria-label="面包屑导航"] li:not(:last-child)::after{content:"›";color:var(--text-muted);font-size:16px}

section>h2{font-size:clamp(1.3rem,2.8vw,1.8rem);margin-bottom:28px;padding-bottom:14px;position:relative;color:var(--text)}

section>h2::after{content:"";position:absolute;bottom:0;left:0;width:56px;height:4px;border-radius:2px;background:linear-gradient(90deg,var(--primary),var(--primary-light))}

section article{background:var(--bg-card);border-radius:var(--radius);padding:28px 30px;margin-bottom:20px;box-shadow:var(--shadow);border:1px solid var(--border);transition:transform var(--transition),box-shadow var(--transition),background var(--transition),border-color var(--transition)}

section article:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}

section article h3{font-size:1.15rem;margin-bottom:14px;color:var(--text);display:flex;align-items:center;gap:8px}

section article h3::before{content:"";width:4px;height:18px;border-radius:2px;background:linear-gradient(180deg,var(--primary),var(--secondary));flex-shrink:0}

section article p{color:var(--text-secondary);margin-bottom:12px;font-size:15px}

section article p:last-child{margin-bottom:0}

section article ul,section article ol{color:var(--text-secondary);font-size:15px;margin-bottom:12px}

section article ul li::marker{color:var(--primary)}

section article ol li::marker{color:var(--primary);font-weight:700}

section article strong{color:var(--text);font-weight:600}

#products article ul{list-style:none;padding-left:0}

#products article ul li{padding:10px 0 10px 28px;position:relative;border-bottom:1px dashed var(--border)}

#products article ul li:last-child{border-bottom:none}

#products article ul li::before{content:"";position:absolute;left:0;top:18px;width:8px;height:8px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--secondary))}

#solutions article ul{list-style:none;padding-left:0}

#solutions article ul li{padding:10px 0 10px 28px;position:relative;border-bottom:1px dashed var(--border)}

#solutions article ul li:last-child{border-bottom:none}

#solutions article ul li::before{content:"";position:absolute;left:0;top:18px;width:8px;height:8px;border-radius:50%;background:linear-gradient(135deg,var(--secondary),var(--primary))}

blockquote{background:linear-gradient(135deg,rgba(255,107,53,.06),rgba(106,76,147,.06));border-left:4px solid var(--primary);border-radius:0 var(--radius-sm) var(--radius-sm) 0;padding:18px 22px;margin:16px 0;transition:all var(--transition);position:relative}

blockquote:hover{transform:translateX(6px);box-shadow:var(--shadow)}

blockquote p{color:var(--text-secondary);font-style:italic;margin:0;font-size:14.5px}

#cases article blockquote{margin-bottom:12px}

#news article p:first-of-type,#articles article p:first-of-type{font-size:13px;color:var(--text-muted);margin-bottom:8px}

#news article a,#articles article a{display:inline-block;font-size:14px;font-weight:600;padding:6px 18px;border-radius:20px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;transition:all var(--transition);box-shadow:0 4px 12px rgba(255,107,53,.25)}

#news article a:hover,#articles article a:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(255,107,53,.4);filter:brightness(1.08);color:#fff}

#articles{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}

#articles>h2{grid-column:1/-1}

#articles article{margin-bottom:0;display:flex;flex-direction:column;justify-content:space-between}

#articles article a{align-self:flex-start;margin-top:8px}

#faq details{background:var(--bg-card);border-radius:var(--radius-sm);margin-bottom:12px;border:1px solid var(--border);overflow:hidden;transition:all var(--transition)}

#faq details:hover{border-color:var(--primary);box-shadow:var(--shadow)}

#faq details[open]{border-color:var(--primary);box-shadow:var(--shadow-hover)}

#faq summary{padding:18px 24px;font-weight:600;cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:15px;color:var(--text);transition:background var(--transition),color var(--transition);user-select:none}

#faq summary::-webkit-details-marker{display:none}

#faq summary::after{content:"+";font-size:20px;font-weight:400;color:var(--primary);transition:transform var(--transition);flex-shrink:0;line-height:1}

#faq details[open] summary::after{content:"−";transform:rotate(180deg)}

#faq summary:hover{background:rgba(255,107,53,.06);color:var(--primary)}

#faq details p{padding:0 24px 20px;color:var(--text-secondary);font-size:14.5px;animation:faqOpen .35s ease both}

@keyframes faqOpen{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}

#howto article ol{counter-reset:step;list-style:none;padding-left:0}

#howto article ol li{counter-increment:step;padding:14px 0 14px 52px;position:relative;border-bottom:1px dashed var(--border)}

#howto article ol li:last-child{border-bottom:none}

#howto article ol li::before{content:counter(step);position:absolute;left:0;top:14px;width:34px;height:34px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff;font-weight:700;font-size:15px;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 10px rgba(255,107,53,.3)}

#howto article ul{list-style:none;padding-left:0}

#howto article ul li{padding:8px 0 8px 28px;position:relative}

#howto article ul li::before{content:"✓";position:absolute;left:0;color:var(--primary);font-weight:700}

#contact ul{list-style:none;padding:0;display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-bottom:24px}

#contact ul li{padding:16px 20px;background:var(--bg-card);border-radius:var(--radius-sm);border:1px solid var(--border);font-size:14.5px;color:var(--text-secondary);transition:all var(--transition)}

#contact ul li:hover{border-color:var(--primary);transform:translateY(-3px);box-shadow:var(--shadow)}

#contact h3,#howto h3{margin-top:24px;margin-bottom:12px;font-size:1.05rem;color:var(--text)}

#contact p{color:var(--text-secondary);font-size:15px}

#sitemap ul{list-style:none;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:10px;margin-bottom:32px}

#sitemap ul li{margin:0}

#sitemap ul li a{display:block;padding:12px 18px;background:var(--bg-card);border-radius:var(--radius-sm);border:1px solid var(--border);font-size:14px;color:var(--text-secondary);transition:all var(--transition)}

#sitemap ul li a:hover{background:linear-gradient(135deg,rgba(255,107,53,.1),rgba(106,76,147,.1));border-color:var(--primary);color:var(--primary);transform:translateY(-3px);box-shadow:var(--shadow)}

#sitemap h2:not(:first-child){margin-top:36px}

#legal article{position:relative}

#site-footer{background:var(--glass-bg);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border-top:1px solid var(--glass-border);padding:40px 20px;transition:background var(--transition),border-color var(--transition)}

.footer-inner{max-width:1280px;margin:0 auto;text-align:center}

.footer-inner p{color:var(--text-muted);font-size:13.5px;margin-bottom:8px}

.footer-inner nav{display:flex;justify-content:center;flex-wrap:wrap;gap:8px;margin-top:16px}

.footer-inner nav a{padding:6px 16px;border-radius:20px;font-size:13.5px;color:var(--text-secondary);border:1px solid var(--border);transition:all var(--transition)}

.footer-inner nav a:hover{background:var(--primary);color:#fff;border-color:var(--primary);transform:translateY(-2px);box-shadow:0 4px 12px rgba(255,107,53,.3)}

#back-to-top{position:fixed;bottom:28px;right:28px;z-index:90;width:48px;height:48px;border-radius:50%;border:none;background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;font-size:11px;font-family:var(--font);cursor:pointer;box-shadow:0 6px 20px rgba(255,107,53,.4);opacity:0;visibility:hidden;transform:translateY(20px);transition:all var(--transition);line-height:1.2;padding:0}

#back-to-top.visible{opacity:1;visibility:visible;transform:translateY(0)}

#back-to-top:hover{transform:translateY(-4px) scale(1.08);box-shadow:0 10px 28px rgba(255,107,53,.55)}

.reveal{opacity:0;transform:translateY(30px);transition:opacity .7s ease,transform .7s ease}

.reveal.visible{opacity:1;transform:translateY(0)}

.reveal-delay-1{transition-delay:.1s}

.reveal-delay-2{transition-delay:.2s}

.reveal-delay-3{transition-delay:.3s}

@media(max-width:1024px){
#main-nav a{padding:8px 9px;font-size:13px}
#site-search input[type="search"]{width:160px}
#site-search input[type="search"]:focus{width:200px}
.stats{grid-template-columns:repeat(2,1fr)}
#articles{grid-template-columns:1fr}
}

@media(max-width:768px){
.header-inner{padding:0 14px;gap:10px}
.logo svg{height:34px}
#mobile-menu-toggle{display:flex}
#main-nav{position:fixed;top:var(--header-h);left:0;right:0;background:var(--glass-bg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--glass-border);max-height:0;overflow:hidden;transition:max-height .4s ease;z-index:99}
#main-nav.open{max-height:420px;overflow-y:auto}
#main-nav ul{flex-direction:column;padding:12px 16px;gap:2px;overflow:visible}
#main-nav a{padding:12px 16px;font-size:15px;border-radius:var(--radius-sm)}
#main-nav a::after{display:none}
#site-search{position:fixed;top:var(--header-h);left:0;right:0;padding:12px 16px;background:var(--glass-bg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--glass-border);max-height:0;overflow:hidden;transition:max-height .4s ease;z-index:98}
#site-search.open{max-height:80px}
#site-search input[type="search"]{width:100%;padding:11px 16px}
#site-search input[type="search"]:focus{width:100%}
#site-search button{right:20px}
#banner{border-radius:0 0 var(--radius-sm) var(--radius-sm);margin-bottom:28px}
.banner-controls{bottom:12px;right:12px;gap:6px}
.banner-controls button{padding:6px 14px;font-size:12px}
main{padding:0 14px 40px}
section{margin-bottom:40px}
#intro{padding:28px 20px}
#intro h1{font-size:1.35rem}
.stats{grid-template-columns:repeat(2,1fr);gap:12px;margin-top:24px}
.stat-item{padding:18px 8px}
.stat-item .num{font-size:1.5rem}
section article{padding:22px 18px}
section>h2{font-size:1.25rem}
#contact ul{grid-template-columns:1fr}
#sitemap ul{grid-template-columns:repeat(2,1fr)}
blockquote{padding:14px 16px}
#back-to-top{width:42px;height:42px;font-size:10px;bottom:18px;right:18px}
.footer-inner nav a{padding:5px 12px;font-size:12.5px}
}

@media(max-width:480px){
.stats{grid-template-columns:1fr 1fr;gap:10px}
.stat-item .num{font-size:1.3rem}
#intro{padding:22px 16px}
#intro h1{font-size:1.2rem}
#sitemap ul{grid-template-columns:1fr}
#articles{grid-template-columns:1fr}
}

@media(prefers-reduced-motion:reduce){
*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
.reveal{opacity:1;transform:none}
}

::selection{background:var(--primary);color:#fff}

::-webkit-scrollbar{width:10px;height:10px}

::-webkit-scrollbar-track{background:var(--bg)}

::-webkit-scrollbar-thumb{background:linear-gradient(180deg,var(--primary),var(--secondary));border-radius:5px;border:2px solid var(--bg)}

::-webkit-scrollbar-thumb:hover{background:var(--primary-dark)}

:focus-visible{outline:3px solid var(--primary);outline-offset:2px;border-radius:4px}