:root{--primary:#ff6b35;--primary-dark:#e8551f;--primary-light:#ff8f5e;--secondary:#1a2a4a;--secondary-light:#2d4373;--accent:#ffd166;--bg:#f7f8fc;--bg-alt:#eef1f8;--card-bg:#ffffff;--card-bg-glass:rgba(255,255,255,.72);--text:#1c2333;--text-secondary:#4a5568;--text-muted:#8892a6;--border:rgba(26,42,74,.09);--shadow-sm:0 2px 8px rgba(26,42,74,.06);--shadow-md:0 8px 28px rgba(26,42,74,.1);--shadow-lg:0 18px 50px rgba(26,42,74,.14);--shadow-glow:0 8px 32px rgba(255,107,53,.28);--radius-sm:10px;--radius:16px;--radius-lg:24px;--radius-xl:32px;--nav-h:68px;--transition:.35s cubic-bezier(.25,.8,.35,1);--grad-primary:linear-gradient(135deg,#ff6b35 0%,#ff8f5e 45%,#ffd166 100%);--grad-hero:linear-gradient(135deg,#1a2a4a 0%,#2d4373 40%,#ff6b35 100%);--grad-card:linear-gradient(145deg,rgba(255,255,255,.9),rgba(255,255,255,.6));--font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--nav-h) + 16px);-webkit-text-size-adjust:100%}
body{font-family:var(--font);font-size:16px;line-height:1.75;color:var(--text);background:var(--bg);overflow-x:hidden;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-image:radial-gradient(circle at 12% 8%,rgba(255,107,53,.07),transparent 42%),radial-gradient(circle at 88% 18%,rgba(26,42,74,.06),transparent 46%),radial-gradient(circle at 50% 92%,rgba(255,209,102,.08),transparent 50%);background-attachment:fixed}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none;transition:color var(--transition),opacity var(--transition)}
a:hover{color:var(--primary-dark)}
ul,ol{list-style:none}
h1,h2,h3,h4{line-height:1.35;font-weight:800;letter-spacing:-.01em}
h1{font-size:clamp(1.7rem,4.2vw,2.9rem)}
h2{font-size:clamp(1.4rem,3vw,2.1rem);margin-bottom:1.4rem;position:relative;padding-bottom:.7rem}
h2::after{content:"";position:absolute;left:0;bottom:0;width:64px;height:5px;border-radius:99px;background:var(--grad-primary);box-shadow:0 2px 10px rgba(255,107,53,.35)}
h3{font-size:clamp(1.1rem,2.2vw,1.45rem);margin:1.6rem 0 .8rem;color:var(--secondary)}
h4{font-size:1.1rem;margin:1.2rem 0 .6rem}
p{margin-bottom:1rem;color:var(--text-secondary)}
strong{color:var(--primary-dark);font-weight:700}
blockquote{position:relative;margin:1.2rem 0;padding:1.1rem 1.4rem 1.1rem 3.2rem;background:var(--card-bg-glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-radius:var(--radius);border-left:4px solid var(--primary);box-shadow:var(--shadow-sm);color:var(--text-secondary);font-style:italic}
blockquote::before{content:"\201C";position:absolute;left:1rem;top:.4rem;font-size:2.6rem;line-height:1;color:var(--primary);opacity:.45;font-family:Georgia,serif}
blockquote p{margin:0}
blockquote p+p{margin-top:.6rem}
header{position:sticky;top:0;z-index:1000;background:rgba(247,248,252,.82);backdrop-filter:blur(18px) saturate(180%);-webkit-backdrop-filter:blur(18px) saturate(180%);border-bottom:1px solid var(--border);box-shadow:0 1px 0 rgba(255,255,255,.6) inset,var(--shadow-sm)}
header nav{max-width:1240px;margin:0 auto;padding:0 clamp(1rem,3vw,2rem);height:var(--nav-h);display:flex;align-items:center;justify-content:space-between;gap:1.5rem}
header nav>a{font-size:1.3rem;font-weight:900;letter-spacing:-.02em;background:var(--grad-primary);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent;white-space:nowrap;position:relative;transition:transform var(--transition),filter var(--transition)}
header nav>a:hover{transform:scale(1.04);filter:brightness(1.08)}
header nav ul{display:flex;align-items:center;gap:.15rem;flex-wrap:wrap}
header nav ul li a{display:inline-block;padding:.5rem .8rem;font-size:.9rem;font-weight:600;color:var(--text-secondary);border-radius:99px;position:relative;transition:color var(--transition),background var(--transition),transform var(--transition)}
header nav ul li a::after{content:"";position:absolute;left:50%;bottom:.3rem;width:0;height:2px;border-radius:99px;background:var(--grad-primary);transform:translateX(-50%);transition:width var(--transition)}
header nav ul li a:hover{color:var(--primary);background:rgba(255,107,53,.09);transform:translateY(-1px)}
header nav ul li a:hover::after{width:55%}
main{max-width:1240px;margin:0 auto;padding:0 clamp(1rem,3vw,2rem) 3rem}
main>section{margin-bottom:clamp(2.5rem,5vw,4.5rem);animation:fadeUp .7s cubic-bezier(.25,.8,.35,1) both}
@keyframes fadeUp{from{opacity:0;transform:translateY(28px)}to{opacity:1;transform:translateY(0)}}
#hero{position:relative;margin-top:clamp(1.5rem,3vw,2.5rem);padding:clamp(2.5rem,6vw,5rem) clamp(1.5rem,4vw,3.5rem);border-radius:var(--radius-xl);background:var(--grad-hero);color:#fff;overflow:hidden;box-shadow:var(--shadow-lg);isolation:isolate}
#hero::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 78% 22%,rgba(255,209,102,.35),transparent 42%),radial-gradient(circle at 12% 88%,rgba(255,143,94,.3),transparent 46%);z-index:-1}
#hero::after{content:"";position:absolute;top:-45%;right:-12%;width:520px;height:520px;border-radius:50%;background:radial-gradient(circle,rgba(255,255,255,.16),transparent 68%);animation:floatBlob 14s ease-in-out infinite;z-index:-1}
@keyframes floatBlob{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(-28px,32px) scale(1.09)}}
#hero h1{color:#fff;margin-bottom:1.4rem;text-shadow:0 4px 22px rgba(0,0,0,.28);animation:fadeUp .8s .1s cubic-bezier(.25,.8,.35,1) both}
#hero p{color:rgba(255,255,255,.93);font-size:clamp(.98rem,1.6vw,1.1rem);max-width:78ch;animation:fadeUp .8s .2s cubic-bezier(.25,.8,.35,1) both}
#hero strong{color:var(--accent);font-weight:800}
#hero p:last-child{display:inline-block;margin-top:.5rem;padding:.45rem 1.2rem;border-radius:99px;background:rgba(255,255,255,.16);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.28);font-size:.92rem;animation:fadeUp .8s .3s cubic-bezier(.25,.8,.35,1) both}
main>section:not(#hero){padding:clamp(1.5rem,3.5vw,2.8rem);border-radius:var(--radius-lg);background:var(--card-bg-glass);backdrop-filter:blur(16px) saturate(160%);-webkit-backdrop-filter:blur(16px) saturate(160%);border:1px solid var(--border);box-shadow:var(--shadow-md);transition:box-shadow var(--transition),transform var(--transition),border-color var(--transition)}
main>section:not(#hero):hover{box-shadow:var(--shadow-lg);border-color:rgba(255,107,53,.22);transform:translateY(-2px)}
#brand ul,#products ul,#solutions ul,#howto ul,#contact ul,#sitemap ul,#links ul{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:.7rem}
#brand ul li,#products ul li,#solutions ul li,#howto ul li,#contact ul li{position:relative;padding:.75rem 1rem .75rem 2.4rem;background:rgba(255,107,53,.05);border-radius:var(--radius-sm);border:1px solid rgba(255,107,53,.1);font-size:.94rem;color:var(--text-secondary);transition:background var(--transition),transform var(--transition),border-color var(--transition),box-shadow var(--transition)}
#brand ul li::before,#products ul li::before,#solutions ul li::before,#howto ul li::before,#contact ul li::before{content:"";position:absolute;left:1rem;top:50%;transform:translateY(-50%);width:8px;height:8px;border-radius:50%;background:var(--grad-primary);box-shadow:0 0 0 3px rgba(255,107,53,.16)}
#brand ul li:hover,#products ul li:hover,#solutions ul li:hover,#howto ul li:hover,#contact ul li:hover{background:rgba(255,107,53,.11);border-color:rgba(255,107,53,.28);transform:translateX(5px);box-shadow:var(--shadow-sm)}
#sitemap ul,#links ul{grid-template-columns:repeat(auto-fill,minmax(180px,1fr))}
#sitemap ul li a,#links ul li a{display:block;padding:.7rem 1rem;border-radius:var(--radius-sm);background:rgba(26,42,74,.045);border:1px solid var(--border);font-size:.92rem;font-weight:600;color:var(--text-secondary);transition:all var(--transition)}
#sitemap ul li a:hover,#links ul li a:hover{background:var(--grad-primary);color:#fff;border-color:transparent;transform:translateY(-3px);box-shadow:var(--shadow-glow)}
#news article,#articles>article{padding:1.3rem 1.5rem;margin-bottom:1rem;border-radius:var(--radius);background:var(--card-bg);border:1px solid var(--border);box-shadow:var(--shadow-sm);transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);position:relative;overflow:hidden}
#news article::before,#articles>article::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--grad-primary);transform:scaleY(0);transform-origin:top;transition:transform var(--transition)}
#news article:hover,#articles>article:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(255,107,53,.24)}
#news article:hover::before,#articles>article:hover::before{transform:scaleY(1)}
#news article h3,#articles>article h3{margin-top:0;margin-bottom:.4rem;font-size:1.15rem}
#news article h3 a,#articles>article h3 a{color:var(--secondary)}
#news article h3 a:hover,#articles>article h3 a:hover{color:var(--primary)}
#news article p,#articles>article p{margin-bottom:.4rem;font-size:.93rem}
#news article p:first-of-type,#articles>article p:first-of-type{font-size:.82rem;color:var(--text-muted);font-weight:600;letter-spacing:.02em}
#articles>article>a{display:inline-flex;align-items:center;gap:.35rem;font-size:.88rem;font-weight:700;padding:.35rem .9rem;border-radius:99px;background:rgba(255,107,53,.1);transition:all var(--transition)}
#articles>article>a::after{content:"\2192";transition:transform var(--transition)}
#articles>article>a:hover{background:var(--grad-primary);color:#fff;box-shadow:var(--shadow-glow)}
#articles>article>a:hover::after{transform:translateX(4px)}
#articles>section{padding:1.4rem 1.6rem;margin-bottom:1.2rem;border-radius:var(--radius);background:linear-gradient(145deg,rgba(255,107,53,.05),rgba(255,209,102,.04));border:1px solid rgba(255,107,53,.13);scroll-margin-top:calc(var(--nav-h) + 20px);transition:box-shadow var(--transition),border-color var(--transition)}
#articles>section:hover{box-shadow:var(--shadow-sm);border-color:rgba(255,107,53,.26)}
#articles>section h3{margin-top:0;color:var(--primary-dark)}
#faq details{margin-bottom:.85rem;border-radius:var(--radius);background:var(--card-bg);border:1px solid var(--border);box-shadow:var(--shadow-sm);overflow:hidden;transition:box-shadow var(--transition),border-color var(--transition),background var(--transition)}
#faq details[open]{border-color:rgba(255,107,53,.28);box-shadow:var(--shadow-md);background:linear-gradient(145deg,rgba(255,107,53,.045),rgba(255,255,255,.9))}
#faq details:hover{border-color:rgba(255,107,53,.22)}
#faq summary{cursor:pointer;padding:1.05rem 3rem 1.05rem 1.4rem;font-weight:700;font-size:1rem;color:var(--secondary);position:relative;list-style:none;transition:color var(--transition),background var(--transition);user-select:none}
#faq summary::-webkit-details-marker{display:none}
#faq summary::marker{display:none;content:""}
#faq summary::after{content:"+";position:absolute;right:1.2rem;top:50%;transform:translateY(-50%);width:26px;height:26px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:rgba(255,107,53,.12);color:var(--primary);font-size:1.25rem;font-weight:400;line-height:1;transition:transform var(--transition),background var(--transition),color var(--transition)}
#faq details[open] summary{color:var(--primary-dark);background:rgba(255,107,53,.05)}
#faq details[open] summary::after{content:"\2212";background:var(--grad-primary);color:#fff;transform:translateY(-50%) rotate(180deg)}
#faq summary:hover{color:var(--primary)}
#faq details p{padding:0 1.4rem 1.2rem;margin:0;font-size:.95rem;animation:faqOpen .35s ease both}
@keyframes faqOpen{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}
#howto ol{counter-reset:step;display:grid;gap:.8rem;margin:1rem 0}
#howto ol li{counter-increment:step;position:relative;padding:1rem 1.2rem 1rem 3.6rem;background:var(--card-bg);border-radius:var(--radius);border:1px solid var(--border);box-shadow:var(--shadow-sm);font-size:.95rem;color:var(--text-secondary);transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition)}
#howto ol li::before{content:counter(step);position:absolute;left:1rem;top:50%;transform:translateY(-50%);width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:var(--grad-primary);color:#fff;font-weight:800;font-size:.95rem;box-shadow:0 4px 14px rgba(255,107,53,.35)}
#howto ol li:hover{transform:translateX(6px);box-shadow:var(--shadow-md);border-color:rgba(255,107,53,.26)}
#contact p{margin-bottom:.55rem;font-size:.95rem}
#contact p strong{color:var(--secondary)}
#contact h3{color:var(--primary-dark)}
#privacy p,#disclaimer p,#copyright p{font-size:.94rem;color:var(--text-secondary);max-width:88ch}
#copyright p{font-weight:600;color:var(--text-muted)}
footer{position:relative;margin-top:2rem;padding:clamp(2rem,4vw,3.2rem) clamp(1rem,3vw,2rem);background:linear-gradient(135deg,#1a2a4a 0%,#22345c 55%,#2d4373 100%);color:rgba(255,255,255,.82);text-align:center;overflow:hidden}
footer::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--grad-primary)}
footer::after{content:"";position:absolute;bottom:-40%;left:50%;transform:translateX(-50%);width:640px;height:320px;border-radius:50%;background:radial-gradient(circle,rgba(255,107,53,.18),transparent 68%);pointer-events:none}
footer p{color:rgba(255,255,255,.78);margin-bottom:.6rem;font-size:.92rem;position:relative;z-index:1}
footer p:first-child{font-size:1.05rem;font-weight:800;color:#fff;letter-spacing:.01em}
footer p:first-child::after{content:"";display:block;width:56px;height:3px;margin:.7rem auto 0;border-radius:99px;background:var(--grad-primary)}
footer a{color:var(--accent);font-weight:600;padding:.2rem .45rem;border-radius:6px;transition:all var(--transition)}
footer a:hover{color:#fff;background:rgba(255,209,102,.16);text-decoration:none}
::selection{background:rgba(255,107,53,.28);color:var(--secondary)}
:focus-visible{outline:3px solid rgba(255,107,53,.55);outline-offset:3px;border-radius:6px}
::-webkit-scrollbar{width:11px;height:11px}
::-webkit-scrollbar-track{background:var(--bg-alt)}
::-webkit-scrollbar-thumb{background:linear-gradient(180deg,var(--primary),var(--primary-light));border-radius:99px;border:3px solid var(--bg-alt)}
::-webkit-scrollbar-thumb:hover{background:var(--primary-dark)}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}}
@media (max-width:900px){
header nav{height:auto;min-height:var(--nav-h);flex-direction:column;align-items:flex-start;padding-top:.85rem;padding-bottom:.85rem;gap:.6rem}
header nav ul{width:100%;overflow-x:auto;flex-wrap:nowrap;gap:.1rem;padding-bottom:.35rem;-webkit-overflow-scrolling:touch;scrollbar-width:none}
header nav ul::-webkit-scrollbar{display:none}
header nav ul li a{white-space:nowrap;font-size:.84rem;padding:.45rem .7rem}
#hero{padding:2.2rem 1.5rem;border-radius:var(--radius-lg)}
main>section:not(#hero){padding:1.5rem 1.2rem;border-radius:var(--radius)}
#brand ul,#products ul,#solutions ul,#howto ul,#contact ul{grid-template-columns:1fr}
#sitemap ul,#links ul{grid-template-columns:repeat(auto-fill,minmax(140px,1fr))}
blockquote{padding:1rem 1.2rem 1rem 2.8rem}
blockquote::before{font-size:2.2rem;left:.8rem}
}
@media (max-width:520px){
body{font-size:15px}
h2{padding-bottom:.55rem}
h2::after{width:48px;height:4px}
#hero{padding:1.8rem 1.2rem}
#hero p:last-child{display:block;text-align:center}
#news article,#articles>article{padding:1.1rem 1.2rem}
#faq summary{padding:1rem 2.8rem 1rem 1.1rem;font-size:.94rem}
#faq details p{padding:0 1.1rem 1rem}
#howto ol li{padding:1rem 1rem 1rem 3.2rem}
#howto ol li::before{left:.8rem;width:28px;height:28px;font-size:.85rem}
footer p{font-size:.85rem}
}
@media (min-width:1400px){
main{max-width:1320px}
}
@media print{
header,footer,#sitemap,#links,#contact{display:none}
body{background:#fff;color:#000}
main>section{box-shadow:none;border:1px solid #ddd;break-inside:avoid}
}
@media (prefers-color-scheme:dark){
:root{--bg:#0f1420;--bg-alt:#161d2e;--card-bg:#1a2233;--card-bg-glass:rgba(26,34,51,.78);--text:#e8ecf4;--text-secondary:#a8b3c7;--text-muted:#6f7c94;--border:rgba(255,255,255,.09);--secondary:#dbe4f5;--shadow-sm:0 2px 8px rgba(0,0,0,.35);--shadow-md:0 8px 28px rgba(0,0,0,.45);--shadow-lg:0 18px 50px rgba(0,0,0,.55);--shadow-glow:0 8px 32px rgba(255,107,53,.35)}
body{background-image:radial-gradient(circle at 12% 8%,rgba(255,107,53,.1),transparent 42%),radial-gradient(circle at 88% 18%,rgba(45,67,115,.22),transparent 46%),radial-gradient(circle at 50% 92%,rgba(255,209,102,.07),transparent 50%)}
header{background:rgba(15,20,32,.85)}
header nav ul li a:hover{background:rgba(255,107,53,.16)}
main>section:not(#hero):hover{border-color:rgba(255,107,53,.32)}
#brand ul li,#products ul li,#solutions ul li,#howto ul li,#contact ul li{background:rgba(255,107,53,.08);border-color:rgba(255,107,53,.16)}
#brand ul li:hover,#products ul li:hover,#solutions ul li:hover,#howto ul li:hover,#contact ul li:hover{background:rgba(255,107,53,.16);border-color:rgba(255,107,53,.34)}
#sitemap ul li a,#links ul li a{background:rgba(255,255,255,.05);border-color:var(--border)}
#news article,#articles>article{background:var(--card-bg)}
#news article h3 a,#articles>article h3 a{color:var(--text)}
#articles>section{background:linear-gradient(145deg,rgba(255,107,53,.09),rgba(255,209,102,.05));border-color:rgba(255,107,53,.2)}
#articles>section h3{color:var(--primary-light)}
#faq details{background:var(--card-bg)}
#faq details[open]{background:linear-gradient(145deg,rgba(255,107,53,.1),rgba(26,34,51,.95))}
#faq summary{color:var(--text)}
#faq details[open] summary{color:var(--primary-light)}
#howto ol li{background:var(--card-bg)}
#contact h3{color:var(--primary-light)}
footer{background:linear-gradient(135deg,#0b101a 0%,#141d30 55%,#1a2a4a 100%)}
}
@media (prefers-color-scheme:dark) and (max-width:900px){
header nav ul li a{color:var(--text-secondary)}
}
@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){
header{background:rgba(247,248,252,.97)}
main>section:not(#hero){background:var(--card-bg)}
blockquote{background:var(--card-bg)}
}
@media (prefers-color-scheme:dark){
@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){
header{background:rgba(15,20,32,.98)}
main>section:not(#hero){background:var(--card-bg)}
blockquote{background:var(--card-bg)}
}
}