:root{--bg:#0b0d1a;--bg-2:#12142a;--bg-3:#1a1d38;--card:rgba(255,255,255,.06);--card-hover:rgba(255,255,255,.1);--glass:rgba(20,22,45,.55);--glass-brd:rgba(255,255,255,.12);--txt:#eef1ff;--txt-2:#a8b0d3;--txt-3:#7a83ad;--pri:#7c5cff;--pri-2:#00e0c6;--pri-3:#ff5c8a;--grad:linear-gradient(135deg,#7c5cff 0%,#00e0c6 100%);--grad-2:linear-gradient(135deg,#ff5c8a 0%,#7c5cff 60%,#00e0c6 100%);--brd:rgba(255,255,255,.08);--shadow:0 8px 32px rgba(0,0,0,.45);--shadow-lg:0 20px 60px rgba(0,0,0,.55);--r:18px;--r-sm:12px;--r-lg:26px;--sp:clamp(1rem,2.5vw,2rem);--maxw:1200px;--tr:.35s cubic-bezier(.22,.61,.36,1)}

*,*::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:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--txt);line-height:1.85;font-size:16px;overflow-x:hidden;min-height:100vh;position:relative}

body::before{content:"";position:fixed;inset:0;z-index:-2;background:radial-gradient(ellipse 80% 60% at 15% 0%,rgba(124,92,255,.22),transparent 60%),radial-gradient(ellipse 70% 55% at 85% 15%,rgba(0,224,198,.16),transparent 60%),radial-gradient(ellipse 60% 50% at 50% 100%,rgba(255,92,138,.12),transparent 65%),var(--bg)}

body::after{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.5;background-image:linear-gradient(rgba(255,255,255,.022) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.022) 1px,transparent 1px);background-size:56px 56px;mask-image:radial-gradient(ellipse 100% 80% at 50% 0%,#000 30%,transparent 75%)}

::selection{background:rgba(124,92,255,.45);color:#fff}

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

::-webkit-scrollbar-track{background:var(--bg-2)}

::-webkit-scrollbar-thumb{background:linear-gradient(180deg,var(--pri),var(--pri-2));border-radius:10px;border:2px solid var(--bg-2)}

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

a{color:var(--pri-2);text-decoration:none;transition:color var(--tr),opacity var(--tr);position:relative}

a:hover{color:#fff}

a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--pri-2);outline-offset:3px;border-radius:6px}

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

/* ===== HEADER ===== */
header{position:sticky;top:0;z-index:1000;backdrop-filter:blur(22px) saturate(180%);-webkit-backdrop-filter:blur(22px) saturate(180%);background:var(--glass);border-bottom:1px solid var(--glass-brd);box-shadow:0 4px 30px rgba(0,0,0,.3);animation:slideDown .7s cubic-bezier(.22,.61,.36,1) both}

@keyframes slideDown{from{transform:translateY(-100%);opacity:0}to{transform:translateY(0);opacity:1}}

header nav{max-width:var(--maxw);margin:0 auto;padding:.85rem var(--sp);display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap}

header nav>a{font-size:1.15rem;font-weight:800;letter-spacing:.5px;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent;white-space:nowrap;transition:transform var(--tr),filter var(--tr)}

header nav>a:hover{transform:scale(1.05);filter:brightness(1.25)}

header nav ul{list-style:none;display:flex;flex-wrap:wrap;gap:.25rem;align-items:center}

header nav ul li a{display:block;padding:.45rem .85rem;font-size:.9rem;color:var(--txt-2);border-radius:var(--r-sm);font-weight:500;transition:all var(--tr);position:relative;overflow:hidden}

header nav ul li a::before{content:"";position:absolute;inset:0;background:var(--grad);opacity:0;transition:opacity var(--tr);border-radius:inherit;z-index:-1}

header nav ul li a:hover{color:#fff;transform:translateY(-2px)}

header nav ul li a:hover::before{opacity:.18}

/* ===== MAIN ===== */
main{max-width:var(--maxw);margin:0 auto;padding:var(--sp);display:flex;flex-direction:column;gap:clamp(1.5rem,4vw,3rem)}

section{animation:fadeUp .8s cubic-bezier(.22,.61,.36,1) both;animation-timeline:view();animation-range:entry 0% entry 35%}

@supports not (animation-timeline:view()){section{animation:fadeUp .8s cubic-bezier(.22,.61,.36,1) both}}

@keyframes fadeUp{from{opacity:0;transform:translateY(40px)}to{opacity:1;transform:translateY(0)}}

/* ===== HERO ===== */
#hero{position:relative;border-radius:var(--r-lg);padding:clamp(2rem,6vw,4.5rem) clamp(1.25rem,4vw,3.5rem);background:var(--grad-2);background-size:200% 200%;overflow:hidden;box-shadow:var(--shadow-lg);isolation:isolate;animation:gradShift 12s ease infinite,fadeUp .8s cubic-bezier(.22,.61,.36,1) both}

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

#hero::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 20% 20%,rgba(255,255,255,.28),transparent 45%),radial-gradient(circle at 80% 80%,rgba(255,255,255,.18),transparent 45%);z-index:-1}

#hero::after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(11,13,26,.35),rgba(11,13,26,.65));z-index:-1}

#hero h1{font-size:clamp(1.6rem,4.5vw,3rem);line-height:1.3;font-weight:900;letter-spacing:-.5px;color:#fff;text-shadow:0 4px 24px rgba(0,0,0,.35);margin-bottom:1.25rem;animation:fadeUp .8s .15s cubic-bezier(.22,.61,.36,1) both}

#hero p{font-size:clamp(.95rem,1.6vw,1.1rem);color:rgba(255,255,255,.92);max-width:75ch;margin-bottom:1rem;text-shadow:0 2px 12px rgba(0,0,0,.3);animation:fadeUp .8s .25s cubic-bezier(.22,.61,.36,1) both}

#hero p:last-child{margin-bottom:0}

/* ===== BREADCRUMB ===== */
nav[aria-label="面包屑导航"]{background:var(--card);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--brd);border-radius:var(--r);padding:.85rem 1.25rem;box-shadow:var(--shadow)}

nav[aria-label="面包屑导航"] ol{list-style:none;display:flex;flex-wrap:wrap;align-items:center;gap:.5rem;font-size:.85rem}

nav[aria-label="面包屑导航"] ol li{display:flex;align-items:center;gap:.5rem;color:var(--txt-3)}

nav[aria-label="面包屑导航"] ol li+li::before{content:"›";color:var(--pri-2);font-weight:700;font-size:1.1rem}

nav[aria-label="面包屑导航"] ol li a{color:var(--txt-2)}

nav[aria-label="面包屑导航"] ol li a:hover{color:var(--pri-2)}

/* ===== ASIDE ===== */
aside{background:var(--glass);backdrop-filter:blur(20px) saturate(160%);-webkit-backdrop-filter:blur(20px) saturate(160%);border:1px solid var(--glass-brd);border-radius:var(--r-lg);padding:1.5rem clamp(1rem,3vw,2rem);box-shadow:var(--shadow);position:relative;overflow:hidden}

aside::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad)}

aside h2{font-size:1.15rem;font-weight:800;margin-bottom:1rem;padding-bottom:.75rem;border-bottom:1px solid var(--brd);display:flex;align-items:center;gap:.6rem;color:var(--txt)}

aside h2::before{content:"";width:5px;height:1.15rem;background:var(--grad);border-radius:3px}

aside ul{list-style:none;display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:.4rem}

aside ul li a{display:block;padding:.5rem .85rem;font-size:.88rem;color:var(--txt-2);border-radius:var(--r-sm);border:1px solid transparent;transition:all var(--tr)}

aside ul li a:hover{color:#fff;background:var(--card-hover);border-color:var(--brd);transform:translateX(6px);box-shadow:0 4px 16px rgba(124,92,255,.2)}

/* ===== SECTION BASE ===== */
section>h2{font-size:clamp(1.35rem,3vw,2rem);font-weight:900;line-height:1.35;margin-bottom:1.25rem;padding-bottom:.85rem;position:relative;letter-spacing:-.3px;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent}

section>h2::after{content:"";position:absolute;bottom:0;left:0;width:70px;height:4px;background:var(--grad);border-radius:4px;-webkit-text-fill-color:initial}

section>h3{font-size:clamp(1.05rem,2vw,1.35rem);font-weight:800;margin:1.75rem 0 .85rem;color:var(--txt);padding-left:.9rem;border-left:4px solid var(--pri);line-height:1.4}

section>h4{font-size:1rem;font-weight:700;margin:1.25rem 0 .6rem;color:var(--pri-2)}

section>p{margin-bottom:1rem;color:var(--txt-2);max-width:80ch}

section>p strong{color:var(--txt);font-weight:700}

/* ===== CONTENT CARDS ===== */
#about,#history,#products,#solutions,#cases,#news,#articles,#faq,#howto,#contact,#sitemap,#legal,#links{background:var(--card);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border:1px solid var(--brd);border-radius:var(--r-lg);padding:clamp(1.5rem,4vw,3rem);box-shadow:var(--shadow);position:relative;overflow:hidden;transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr)}

#about:hover,#history:hover,#products:hover,#solutions:hover,#cases:hover,#news:hover,#articles:hover,#faq:hover,#howto:hover,#contact:hover,#sitemap:hover,#legal:hover,#links:hover{box-shadow:var(--shadow-lg);border-color:rgba(124,92,255,.3)}

/* ===== ARTICLE CARDS ===== */
#news article,#articles article{background:var(--bg-2);border:1px solid var(--brd);border-radius:var(--r);padding:1.35rem 1.5rem;margin-bottom:1rem;transition:all var(--tr);position:relative;overflow:hidden}

#news article::before,#articles article::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--grad);transform:scaleY(0);transform-origin:top;transition:transform var(--tr)}

#news article:hover,#articles article:hover{transform:translateY(-6px);border-color:rgba(0,224,198,.35);box-shadow:0 16px 40px rgba(0,0,0,.4);background:var(--bg-3)}

#news article:hover::before,#articles article:hover::before{transform:scaleY(1)}

#news article h3,#articles article h3{font-size:1.1rem;font-weight:800;margin:0 0 .5rem;color:var(--txt);line-height:1.5;transition:color var(--tr)}

#news article:hover h3,#articles article:hover h3{color:var(--pri-2)}

#news article p,#articles article p{margin-bottom:.5rem;font-size:.92rem;color:var(--txt-2)}

#news article p:first-of-type,#articles article p:first-of-type{font-size:.78rem;color:var(--txt-3);font-weight:600;letter-spacing:.3px;display:inline-block;padding:.15rem .6rem;background:rgba(124,92,255,.12);border-radius:20px;margin-bottom:.75rem}

#articles article p:nth-of-type(2){font-size:.9rem;line-height:1.8}

#articles article p a{display:inline-flex;align-items:center;gap:.35rem;font-size:.85rem;font-weight:700;color:var(--pri-2);padding:.4rem .9rem;border:1px solid rgba(0,224,198,.35);border-radius:20px;transition:all var(--tr)}

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

#articles article p a:hover{background:var(--pri-2);color:#0b0d1a;border-color:var(--pri-2);box-shadow:0 6px 20px rgba(0,224,198,.35)}

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

/* ===== BLOCKQUOTE ===== */
blockquote{background:linear-gradient(135deg,rgba(124,92,255,.12),rgba(0,224,198,.08));border-left:4px solid var(--pri);border-radius:0 var(--r) var(--r) 0;padding:1.1rem 1.4rem;margin:1rem 0;position:relative;transition:all var(--tr)}

blockquote::before{content:"❝";position:absolute;top:.2rem;right:1rem;font-size:3rem;color:rgba(124,92,255,.2);line-height:1;font-family:Georgia,serif}

blockquote:hover{transform:translateX(8px);border-left-color:var(--pri-2);box-shadow:0 8px 28px rgba(124,92,255,.2)}

blockquote p{color:var(--txt);font-style:italic;margin:0;font-size:.95rem}

/* ===== FAQ DETAILS ===== */
#faq details{background:var(--bg-2);border:1px solid var(--brd);border-radius:var(--r);margin-bottom:.85rem;overflow:hidden;transition:all var(--tr)}

#faq details:hover{border-color:rgba(124,92,255,.4);box-shadow:0 8px 28px rgba(0,0,0,.35)}

#faq details[open]{border-color:rgba(0,224,198,.4);background:var(--bg-3);box-shadow:0 12px 36px rgba(0,0,0,.4)}

#faq summary{cursor:pointer;padding:1.1rem 1.4rem;font-weight:700;font-size:.98rem;color:var(--txt);list-style:none;display:flex;align-items:center;justify-content:space-between;gap:1rem;transition:all var(--tr);user-select:none;position:relative}

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

#faq summary::after{content:"+";font-size:1.5rem;font-weight:300;color:var(--pri-2);flex-shrink:0;transition:transform var(--tr),color var(--tr);line-height:1;width:28px;height:28px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:rgba(0,224,198,.1)}

#faq details[open] summary::after{content:"−";transform:rotate(180deg);background:var(--pri-2);color:#0b0d1a}

#faq summary:hover{color:var(--pri-2);background:rgba(124,92,255,.06)}

#faq details p{padding:0 1.4rem 1.3rem;color:var(--txt-2);font-size:.92rem;line-height:1.9;animation:fadeUp .4s ease both;border-top:1px solid var(--brd);padding-top:1rem;margin-top:.25rem}

/* ===== HOWTO LIST ===== */
#howto ol{list-style:none;counter-reset:step;display:flex;flex-direction:column;gap:.75rem;margin:1.25rem 0}

#howto ol li{counter-increment:step;position:relative;padding:1rem 1.25rem 1rem 3.75rem;background:var(--bg-2);border:1px solid var(--brd);border-radius:var(--r);color:var(--txt-2);font-size:.93rem;transition:all var(--tr)}

#howto ol li::before{content:counter(step,decimal-leading-zero);position:absolute;left:1rem;top:50%;transform:translateY(-50%);width:2rem;height:2rem;display:flex;align-items:center;justify-content:center;background:var(--grad);color:#fff;font-weight:800;font-size:.78rem;border-radius:50%;box-shadow:0 4px 14px rgba(124,92,255,.4);transition:all var(--tr)}

#howto ol li:hover{transform:translateX(8px);border-color:rgba(0,224,198,.4);background:var(--bg-3);color:var(--txt);box-shadow:0 8px 24px rgba(0,0,0,.35)}

#howto ol li:hover::before{transform:translateY(-50%) scale(1.15) rotate(-8deg);box-shadow:0 6px 20px rgba(0,224,198,.5)}

/* ===== CONTACT LIST ===== */
#contact ul{list-style:none;display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:.85rem;margin:1.25rem 0}

#contact ul li{background:var(--bg-2);border:1px solid var(--brd);border-radius:var(--r);padding:1rem 1.25rem;font-size:.9rem;color:var(--txt-2);transition:all var(--tr);position:relative;overflow:hidden}

#contact ul li::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--grad);transform:scaleY(0);transition:transform var(--tr)}

#contact ul li:hover{transform:translateY(-4px);border-color:rgba(124,92,255,.4);color:var(--txt);box-shadow:0 10px 28px rgba(0,0,0,.35)}

#contact ul li:hover::before{transform:scaleY(1)}

/* ===== SITEMAP & LINKS ===== */
#sitemap ul,#links ul{list-style:none;display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:.6rem}

#sitemap ul li a,#links ul li a{display:block;padding:.65rem 1rem;background:var(--bg-2);border:1px solid var(--brd);border-radius:var(--r-sm);font-size:.88rem;color:var(--txt-2);transition:all var(--tr);position:relative;overflow:hidden}

#sitemap ul li a::before,#links ul li a::before{content:"";position:absolute;inset:0;background:var(--grad);opacity:0;transition:opacity var(--tr);z-index:-1}

#sitemap ul li a:hover,#links ul li a:hover{color:#fff;transform:translateY(-3px);border-color:transparent;box-shadow:0 8px 24px rgba(124,92,255,.3)}

#sitemap ul li a:hover::before,#links ul li a:hover::before{opacity:.9}

/* ===== LEGAL ===== */
#legal h3{margin-top:1.5rem}

#legal p{font-size:.9rem;line-height:1.9}

/* ===== FOOTER ===== */
footer{max-width:var(--maxw);margin:clamp(2rem,5vw,4rem) auto 0;padding:2.5rem var(--sp) 3rem;border-top:1px solid var(--brd);text-align:center;position:relative}

footer::before{content:"";position:absolute;top:-1px;left:50%;transform:translateX(-50%);width:120px;height:2px;background:var(--grad);border-radius:2px}

footer p{font-size:.85rem;color:var(--txt-3);margin-bottom:.5rem;line-height:1.8}

footer p:first-child{color:var(--txt-2);font-weight:600}

footer p a{color:var(--pri-2);font-weight:600;display:inline-flex;align-items:center;gap:.35rem;padding:.4rem 1rem;border:1px solid rgba(0,224,198,.3);border-radius:20px;transition:all var(--tr);margin-top:.5rem}

footer p a::before{content:"↑";transition:transform var(--tr)}

footer p a:hover{background:var(--pri-2);color:#0b0d1a;border-color:var(--pri-2);box-shadow:0 6px 20px rgba(0,224,198,.35)}

footer p a:hover::before{transform:translateY(-3px)}

/* ===== RESPONSIVE ===== */
@media (max-width:900px){
  header nav{flex-direction:column;align-items:flex-start;gap:.6rem}
  header nav ul{width:100%;justify-content:flex-start;gap:.15rem}
  header nav ul li a{padding:.4rem .7rem;font-size:.85rem}
  aside ul{grid-template-columns:repeat(auto-fill,minmax(160px,1fr))}
  #contact ul{grid-template-columns:1fr}
}

@media (max-width:640px){
  html{scroll-padding-top:70px}
  body{font-size:15px;line-height:1.8}
  header nav{padding:.7rem var(--sp)}
  header nav>a{font-size:1rem}
  header nav ul{overflow-x:auto;flex-wrap:nowrap;padding-bottom:.35rem;-webkit-overflow-scrolling:touch;scrollbar-width:none}
  header nav ul::-webkit-scrollbar{display:none}
  header nav ul li{flex-shrink:0}
  header nav ul li a{font-size:.8rem;padding:.35rem .65rem;white-space:nowrap}
  main{padding:1rem}
  #hero{border-radius:var(--r);padding:1.75rem 1.25rem}
  #hero h1{font-size:1.45rem}
  #hero p{font-size:.9rem}
  section>h2{font-size:1.25rem}
  section>h3{font-size:1.05rem}
  #about,#history,#products,#solutions,#cases,#news,#articles,#faq,#howto,#contact,#sitemap,#legal,#links{padding:1.35rem 1.1rem;border-radius:var(--r)}
  aside{padding:1.25rem 1.1rem;border-radius:var(--r)}
  aside ul{grid-template-columns:1fr}
  #news article,#articles article{padding:1.1rem}
  #faq summary{padding:.9rem 1rem;font-size:.9rem}
  #faq details p{padding:0 1rem 1rem;font-size:.88rem}
  #howto ol li{padding:.9rem 1rem .9rem 3.25rem;font-size:.88rem}
  #howto ol li::before{width:1.75rem;height:1.75rem;left:.8rem;font-size:.72rem}
  #sitemap ul,#links ul{grid-template-columns:1fr 1fr}
  blockquote{padding:.9rem 1.1rem}
  blockquote::before{font-size:2.2rem}
}

@media (max-width:380px){
  #sitemap ul,#links ul{grid-template-columns:1fr}
  #hero h1{font-size:1.3rem}
}

/* ===== LIGHT MODE ===== */
@media (prefers-color-scheme:light){
  :root{--bg:#f4f5fb;--bg-2:#ffffff;--bg-3:#eef0fa;--card:rgba(255,255,255,.75);--card-hover:rgba(124,92,255,.08);--glass:rgba(255,255,255,.7);--glass-brd:rgba(124,92,255,.15);--txt:#1a1d38;--txt-2:#4a5178;--txt-3:#7a83ad;--brd:rgba(124,92,255,.14);--shadow:0 8px 32px rgba(80,90,160,.12);--shadow-lg:0 20px 60px rgba(80,90,160,.18)}
  body::before{background:radial-gradient(ellipse 80% 60% at 15% 0%,rgba(124,92,255,.14),transparent 60%),radial-gradient(ellipse 70% 55% at 85% 15%,rgba(0,224,198,.12),transparent 60%),radial-gradient(ellipse 60% 50% at 50% 100%,rgba(255,92,138,.08),transparent 65%),var(--bg)}
  body::after{background-image:linear-gradient(rgba(124,92,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(124,92,255,.05) 1px,transparent 1px)}
  ::-webkit-scrollbar-track{background:var(--bg-3)}
  ::-webkit-scrollbar-thumb{border-color:var(--bg-3)}
  #hero::after{background:linear-gradient(135deg,rgba(255,255,255,.15),rgba(255,255,255,.35))}
  #hero h1,#hero p{color:#fff;text-shadow:0 4px 24px rgba(0,0,0,.3)}
  header nav>a{-webkit-text-fill-color:transparent}
  a:hover{color:var(--pri)}
  #articles article p a:hover{color:#fff}
  #sitemap ul li a:hover,#links ul li a:hover{color:#fff}
  footer p a:hover{color:#fff}
  #faq summary:hover{color:var(--pri)}
  #news article:hover h3,#articles article:hover h3{color:var(--pri)}
  #news article p:first-of-type,#articles article p:first-of-type{background:rgba(124,92,255,.1)}
}

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

/* ===== PRINT ===== */
@media print{
  header,aside,footer,#hero::before,#hero::after,body::before,body::after{display:none!important}
  body{background:#fff;color:#000}
  section{box-shadow:none;border:1px solid #ccc;break-inside:avoid}
  a{color:#000;text-decoration:underline}
}