:root{--primary:#ff5a36;--primary-dark:#e8431f;--primary-light:#ff8b6b;--accent:#ffb347;--accent2:#00c2a8;--bg:#fdf8f5;--bg-alt:#fff3ed;--surface:#ffffff;--surface-glass:rgba(255,255,255,.72);--surface-glass-strong:rgba(255,255,255,.9);--text:#1f1a17;--text-soft:#5b514c;--text-muted:#8a7d76;--border:rgba(31,26,23,.1);--border-strong:rgba(31,26,23,.2);--shadow-sm:0 2px 8px rgba(31,26,23,.06);--shadow:0 8px 24px rgba(31,26,23,.1);--shadow-lg:0 16px 48px rgba(31,26,23,.16);--radius-sm:10px;--radius:16px;--radius-lg:24px;--radius-pill:999px;--gradient-hero:linear-gradient(135deg,#ff5a36 0%,#ff8b3d 45%,#ffb347 100%);--gradient-accent:linear-gradient(120deg,#ff5a36,#ffb347);--gradient-cool:linear-gradient(135deg,#1b1b2f,#3a2f6b 60%,#ff5a36);--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:#0e0c10;--bg-alt:#161319;--surface:#1c1820;--surface-glass:rgba(28,24,32,.72);--surface-glass-strong:rgba(28,24,32,.92);--text:#f2ede9;--text-soft:#c4bab4;--text-muted:#8f847e;--border:rgba(242,237,233,.12);--border-strong:rgba(242,237,233,.24);--shadow-sm:0 2px 8px rgba(0,0,0,.3);--shadow:0 8px 24px rgba(0,0,0,.4);--shadow-lg:0 16px 48px rgba(0,0,0,.55)}

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

html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;scroll-padding-top:90px}

body{font-family:var(--font);font-size:16px;line-height:1.75;color:var(--text);background:var(--bg);background-image:radial-gradient(circle at 12% 8%,rgba(255,90,54,.07),transparent 42%),radial-gradient(circle at 88% 22%,rgba(255,179,71,.08),transparent 45%),radial-gradient(circle at 50% 95%,rgba(0,194,168,.06),transparent 50%);background-attachment:fixed;transition:background-color var(--transition),color var(--transition);overflow-x:hidden;-webkit-font-smoothing:antialiased}

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

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

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

ul,ol{list-style:none}

h1,h2,h3,h4{line-height:1.3;font-weight:800;letter-spacing:-.01em;color:var(--text)}

h1{font-size:clamp(1.75rem,4vw,2.75rem)}

h2{font-size:clamp(1.4rem,3vw,2rem);margin-bottom:1rem;position:relative;padding-left:1.1rem}

h2::before{content:"";position:absolute;left:0;top:.15em;bottom:.15em;width:6px;border-radius:var(--radius-pill);background:var(--gradient-accent)}

h3{font-size:clamp(1.1rem,2vw,1.35rem);margin:1.5rem 0 .6rem;color:var(--text)}

p{margin-bottom:1rem;color:var(--text-soft)}

section{padding:clamp(2.5rem,6vw,4.5rem) clamp(1rem,4vw,2rem);max-width:1200px;margin:0 auto;position:relative}

section+section{border-top:1px solid var(--border)}

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

header#site-header{position:sticky;top:0;z-index:1000;background:var(--surface-glass);backdrop-filter:blur(18px) saturate(180%);-webkit-backdrop-filter:blur(18px) saturate(180%);border-bottom:1px solid var(--border);transition:background var(--transition),box-shadow var(--transition),border-color var(--transition)}

header#site-header.scrolled{box-shadow:var(--shadow);background:var(--surface-glass-strong)}

.header-inner{max-width:1280px;margin:0 auto;padding:.7rem clamp(1rem,3vw,2rem);display:flex;align-items:center;gap:1.25rem;flex-wrap:wrap}

.brand{display:flex;align-items:center;gap:.7rem;flex-shrink:0}

.brand svg{border-radius:12px;box-shadow:var(--shadow-sm);transition:transform var(--transition)}

.brand:hover svg{transform:rotate(-6deg) scale(1.06)}

.brand-text{display:flex;flex-direction:column;line-height:1.25}

.brand-name{font-size:1.25rem;font-weight:900;background:var(--gradient-accent);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;letter-spacing:.02em}

.brand-slogan{font-size:.7rem;color:var(--text-muted);letter-spacing:.05em;white-space:nowrap}

nav#main-nav{flex:1;display:flex;justify-content:center}

nav#main-nav ul{display:flex;flex-wrap:wrap;gap:.15rem;justify-content:center}

nav#main-nav a{display:block;padding:.5rem .85rem;border-radius:var(--radius-pill);font-size:.9rem;font-weight:600;color:var(--text-soft);position:relative;transition:color var(--transition),background var(--transition),transform var(--transition)}

nav#main-nav a::after{content:"";position:absolute;left:50%;bottom:.28rem;width:0;height:2px;border-radius:var(--radius-pill);background:var(--gradient-accent);transform:translateX(-50%);transition:width var(--transition)}

nav#main-nav a:hover{color:var(--primary);background:var(--bg-alt);transform:translateY(-2px)}

nav#main-nav a:hover::after{width:60%}

.header-tools{display:flex;align-items:center;gap:.5rem;flex-shrink:0}

form#site-search{display:flex;align-items:center;background:var(--bg-alt);border:1px solid var(--border);border-radius:var(--radius-pill);overflow:hidden;transition:border-color var(--transition),box-shadow var(--transition),background var(--transition)}

form#site-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 4px rgba(255,90,54,.15)}

form#site-search input{border:0;background:transparent;padding:.5rem .9rem;font-size:.88rem;color:var(--text);outline:none;width:190px;font-family:inherit;transition:width var(--transition)}

form#site-search input::placeholder{color:var(--text-muted)}

form#site-search input:focus{width:230px}

form#site-search button{border:0;background:var(--gradient-accent);color:#fff;padding:.5rem 1rem;font-size:.85rem;font-weight:700;cursor:pointer;font-family:inherit;transition:filter var(--transition),transform var(--transition)}

form#site-search button:hover{filter:brightness(1.1)}

form#site-search button:active{transform:scale(.96)}

#theme-toggle,#menu-toggle{border:1px solid var(--border);background:var(--surface);color:var(--text);width:40px;height:40px;border-radius:50%;cursor:pointer;font-size:1.05rem;display:flex;align-items:center;justify-content:center;transition:transform var(--transition),background var(--transition),border-color var(--transition),box-shadow var(--transition)}

#theme-toggle:hover,#menu-toggle:hover{transform:translateY(-2px) rotate(8deg);border-color:var(--primary);box-shadow:var(--shadow-sm)}

#menu-toggle{display:none}

main#main-content{display:block}

section.hero{max-width:none;padding:0;border-top:0;position:relative;overflow:hidden}

.hero-slider{position:relative;min-height:clamp(280px,42vw,460px);display:flex;align-items:center;justify-content:center;background:var(--gradient-cool)}

.slide{position:absolute;inset:0;opacity:0;visibility:hidden;transform:scale(1.05);transition:opacity .8s ease,transform 1.2s ease,visibility .8s}

.slide.active{opacity:1;visibility:visible;transform:scale(1);position:relative}

.slide-art{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;min-height:clamp(280px,42vw,460px)}

.slide::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(15,10,25,.72) 0%,rgba(15,10,25,.35) 55%,rgba(15,10,25,.05) 100%);pointer-events:none}

.hero-copy{position:relative;z-index:2;max-width:1200px;margin:0 auto;padding:clamp(2rem,5vw,3.5rem) clamp(1rem,4vw,2rem);background:var(--surface-glass);backdrop-filter:blur(14px) saturate(160%);-webkit-backdrop-filter:blur(14px) saturate(160%);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);border:1px solid var(--border);margin-top:-4rem;margin-bottom:2rem}

.hero-copy h1{margin-bottom:1rem;background:var(--gradient-accent);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}

.hero-copy p{font-size:1.02rem;max-width:82ch}

.hero-actions{display:flex;flex-wrap:wrap;gap:.85rem;margin:1.5rem 0}

.btn-primary,.btn-secondary{display:inline-flex;align-items:center;justify-content:center;padding:.8rem 1.75rem;border-radius:var(--radius-pill);font-weight:700;font-size:.95rem;transition:transform var(--transition),box-shadow var(--transition),filter var(--transition);will-change:transform}

.btn-primary{background:var(--gradient-accent);color:#fff;box-shadow:0 8px 22px rgba(255,90,54,.38)}

.btn-primary:hover{color:#fff;transform:translateY(-3px);box-shadow:0 14px 30px rgba(255,90,54,.5);filter:brightness(1.05)}

.btn-secondary{background:var(--surface);color:var(--text);border:1.5px solid var(--border-strong);box-shadow:var(--shadow-sm)}

.btn-secondary:hover{color:var(--primary);border-color:var(--primary);transform:translateY(-3px);box-shadow:var(--shadow)}

.hero-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:1rem;margin-top:1.75rem}

.hero-stats>div{background:var(--surface-glass-strong);border:1px solid var(--border);border-radius:var(--radius);padding:1rem 1.1rem;text-align:center;transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition)}

.hero-stats>div:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:var(--primary-light)}

.hero-stats dt{font-size:.78rem;color:var(--text-muted);letter-spacing:.08em;text-transform:uppercase;margin-bottom:.35rem}

.hero-stats dd{font-size:1.45rem;font-weight:900;color:var(--primary);font-variant-numeric:tabular-nums}

#breadcrumb{max-width:1200px;margin:0 auto;padding:1.1rem clamp(1rem,4vw,2rem) 0}

#breadcrumb ol{display:flex;flex-wrap:wrap;gap:.4rem;font-size:.85rem;color:var(--text-muted)}

#breadcrumb li+li::before{content:"›";margin-right:.4rem;color:var(--text-muted)}

#breadcrumb a{color:var(--text-soft);font-weight:600}

#breadcrumb a:hover{color:var(--primary)}

#anchor-nav{max-width:1200px;margin:1rem auto 0;padding:0 clamp(1rem,4vw,2rem)}

#anchor-nav ul{display:flex;flex-wrap:wrap;gap:.5rem}

#anchor-nav a{display:inline-block;padding:.38rem .85rem;font-size:.82rem;font-weight:600;color:var(--text-soft);background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-pill);transition:all var(--transition)}

#anchor-nav a:hover{color:#fff;background:var(--gradient-accent);border-color:transparent;transform:translateY(-2px);box-shadow:0 6px 16px rgba(255,90,54,.3)}

#intro,#history,#culture,#products,#advantages,#solutions,#applications,#cases,#reviews,#news,#articles,#knowledge,#faq,#howto,#contact,#sitemap,#links{scroll-margin-top:100px}

#products h3,#advantages h3,#solutions h3,#applications h3,#cases h3,#knowledge h3,#howto h3{position:relative;padding-left:1.6rem}

#products h3::before,#advantages h3::before,#solutions h3::before,#applications h3::before,#cases h3::before,#knowledge h3::before,#howto h3::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:10px;height:10px;border-radius:3px;background:var(--gradient-accent);box-shadow:0 0 0 4px rgba(255,90,54,.12)}

blockquote{position:relative;margin:1.25rem 0;padding:1.4rem 1.6rem 1.4rem 2.6rem;background:var(--surface-glass);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid var(--border);border-left:5px solid var(--primary);border-radius:var(--radius);box-shadow:var(--shadow-sm);transition:transform var(--transition),box-shadow var(--transition)}

blockquote::before{content:"“";position:absolute;left:.85rem;top:.35rem;font-size:2.6rem;line-height:1;color:var(--primary-light);font-family:Georgia,serif;opacity:.7}

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

blockquote p{font-style:italic;color:var(--text)}

blockquote footer{margin-top:.6rem;font-size:.85rem;color:var(--text-muted);font-style:normal;font-weight:600}

article{position:relative;background:var(--surface-glass);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid var(--border);border-radius:var(--radius);padding:1.4rem 1.5rem;margin:1rem 0;box-shadow:var(--shadow-sm);transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition)}

article:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--primary-light)}

article h3{margin-top:0;color:var(--text)}

article time{display:inline-block;font-size:.78rem;color:var(--text-muted);font-weight:600;margin-bottom:.5rem;padding:.15rem .7rem;background:var(--bg-alt);border-radius:var(--radius-pill)}

article a{font-weight:700;display:inline-flex;align-items:center;gap:.3rem}

article a::after{content:"→";transition:transform var(--transition)}

article a:hover::after{transform:translateX(4px)}

#news article{border-left:4px solid var(--accent)}

#articles article{border-left:4px solid var(--primary)}

#articles article:nth-child(3n+2){border-left-color:var(--accent2)}

#articles article:nth-child(3n){border-left-color:var(--accent)}

#faq details{background:var(--surface-glass);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid var(--border);border-radius:var(--radius);margin:.75rem 0;overflow:hidden;transition:box-shadow var(--transition),border-color var(--transition)}

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

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

#faq summary{cursor:pointer;padding:1.05rem 3rem 1.05rem 1.4rem;font-weight:700;font-size:1rem;color:var(--text);position:relative;list-style:none;transition:background var(--transition),color var(--transition)}

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

#faq summary::after{content:"+";position:absolute;right:1.3rem;top:50%;transform:translateY(-50%);font-size:1.5rem;font-weight:400;color:var(--primary);transition:transform var(--transition)}

#faq details[open] summary::after{transform:translateY(-50%) rotate(45deg)}

#faq summary:hover{background:var(--bg-alt);color:var(--primary)}

#faq details>p{padding:0 1.4rem 1.2rem;margin:0;animation:fadeSlide .35s ease}

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

#howto ul,#howto ol{margin:.5rem 0 1.25rem;padding-left:.25rem}

#howto ul li,#howto ol li{position:relative;padding-left:1.7rem;margin-bottom:.55rem;color:var(--text-soft)}

#howto ul li::before{content:"";position:absolute;left:.2rem;top:.62em;width:8px;height:8px;border-radius:50%;background:var(--gradient-accent)}

#howto ol{counter-reset:step}

#howto ol li{counter-increment:step}

#howto ol li::before{content:counter(step);position:absolute;left:0;top:.15em;width:1.3rem;height:1.3rem;border-radius:50%;background:var(--gradient-accent);color:#fff;font-size:.72rem;font-weight:800;display:flex;align-items:center;justify-content:center}

#contact address{font-style:normal;background:var(--surface-glass);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid var(--border);border-radius:var(--radius);padding:1.4rem 1.5rem;box-shadow:var(--shadow-sm)}

#contact dl{display:grid;grid-template-columns:auto 1fr;gap:.55rem 1.25rem;align-items:baseline}

#contact dt{font-weight:700;color:var(--text);white-space:nowrap}

#contact dd{color:var(--text-soft)}

#contact a{font-weight:600}

#sitemap ul,#links ul{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:.5rem}

#sitemap a,#links a{display:block;padding:.55rem .9rem;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);font-size:.9rem;font-weight:600;color:var(--text-soft);transition:all var(--transition)}

#sitemap a:hover,#links a:hover{color:#fff;background:var(--gradient-accent);border-color:transparent;transform:translateY(-3px);box-shadow:0 8px 18px rgba(255,90,54,.28)}

footer#site-footer{background:var(--gradient-cool);color:#f2ede9;margin-top:2rem;padding:clamp(2rem,5vw,3.5rem) clamp(1rem,4vw,2rem) 1.5rem;position:relative;overflow:hidden}

footer#site-footer::before{content:"";position:absolute;top:-60px;right:-60px;width:260px;height:260px;border-radius:50%;background:radial-gradient(circle,rgba(255,90,54,.35),transparent 70%);pointer-events:none}

.footer-inner{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1.75rem;position:relative;z-index:1}

footer#site-footer h2{font-size:1.05rem;color:#fff;padding-left:0;margin-bottom:.85rem}

footer#site-footer h2::before{display:none}

footer#site-footer p,footer#site-footer li{color:rgba(242,237,233,.78);font-size:.9rem}

footer#site-footer a{color:var(--accent);font-weight:600}

footer#site-footer a:hover{color:#fff;text-decoration:underline}

footer#site-footer ul li{margin-bottom:.4rem}

footer#site-footer>section:not(.footer-inner):not(#copyright):not(#privacy):not(#disclaimer):not(#security){max-width:1200px;margin:1.5rem auto 0;padding:1.25rem 0 0;border-top:1px solid rgba(242,237,233,.15);position:relative;z-index:1}

footer#site-footer>section h2{font-size:1rem;color:#fff;margin-bottom:.5rem}

footer#site-footer>section p{max-width:90ch}

.footer-meta{max-width:1200px;margin:1.5rem auto 0;padding-top:1.25rem;border-top:1px solid rgba(242,237,233,.15);display:flex;flex-wrap:wrap;gap:.75rem 1.75rem;justify-content:space-between;font-size:.82rem;color:rgba(242,237,233,.65);position:relative;z-index:1}

#back-to-top{position:fixed;right:1.25rem;bottom:1.25rem;width:48px;height:48px;border-radius:50%;border:0;background:var(--gradient-accent);color:#fff;font-size:1.3rem;font-weight:700;cursor:pointer;box-shadow:0 8px 22px rgba(255,90,54,.45);opacity:0;visibility:hidden;transform:translateY(20px) scale(.85);transition:all var(--transition);z-index:999;display:flex;align-items:center;justify-content:center}

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

#back-to-top:hover{transform:translateY(-4px) scale(1.08);box-shadow:0 14px 30px rgba(255,90,54,.6)}

.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s cubic-bezier(.22,1,.36,1)}

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

@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}}

@media (max-width:1024px){form#site-search input{width:150px}form#site-search input:focus{width:180px}.hero-copy{margin-top:-3rem}}

@media (max-width:860px){#menu-toggle{display:flex}nav#main-nav{position:fixed;top:0;right:0;bottom:0;width:min(300px,82vw);background:var(--surface-glass-strong);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);box-shadow:var(--shadow-lg);transform:translateX(105%);transition:transform var(--transition);padding:5rem 1.25rem 2rem;z-index:1001;overflow-y:auto;justify-content:flex-start;border-left:1px solid var(--border)}nav#main-nav.open{transform:translateX(0)}nav#main-nav ul{flex-direction:column;gap:.25rem;width:100%}nav#main-nav a{padding:.8rem 1rem;font-size:1rem;border-radius:var(--radius-sm)}nav#main-nav a::after{display:none}nav#main-nav a:hover{transform:translateX(6px)}form#site-search{order:3;width:100%;flex-basis:100%}form#site-search input{width:100%;flex:1}form#site-search input:focus{width:100%}.header-tools{flex:1;justify-content:flex-end;flex-wrap:wrap}#contact dl{grid-template-columns:1fr;gap:.15rem 0}#contact dt{margin-top:.5rem}}

@media (max-width:600px){body{font-size:15px}.header-inner{gap:.6rem;padding:.6rem 1rem}.brand-slogan{display:none}.brand-name{font-size:1.1rem}.hero-copy{margin-top:-2rem;padding:1.5rem 1.1rem;border-radius:var(--radius)}.hero-stats{grid-template-columns:repeat(2,1fr);gap:.6rem}.hero-stats dd{font-size:1.15rem}.hero-actions .btn-primary,.hero-actions .btn-secondary{flex:1;min-width:140px}section{padding:2rem 1rem}blockquote{padding:1.1rem 1.1rem 1.1rem 2.2rem;margin-left:0}article{padding:1.1rem 1.1rem}#sitemap ul,#links ul{grid-template-columns:repeat(2,1fr)}.footer-meta{flex-direction:column;gap:.4rem}#back-to-top{right:.85rem;bottom:.85rem;width:44px;height:44px}}

@media (min-width:1440px){section{max-width:1280px}.header-inner,.hero-copy,.footer-inner,.footer-meta{max-width:1280px}}