:root{--primary:#ff6b9d;--primary-dark:#e8558a;--primary-light:#ff9a9e;--secondary:#fad0c4;--accent:#a18cd1;--accent2:#fbc2eb;--bg:#faf7f2;--bg-alt:#fff;--bg-elevated:#fff;--text:#2c2c2c;--text-secondary:#666;--text-muted:#aaa;--border:#eee;--shadow-sm:0 2px 12px rgba(0,0,0,.05);--shadow-md:0 8px 24px rgba(0,0,0,.1);--shadow-lg:0 16px 48px rgba(0,0,0,.14);--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:24px;--glass-bg:rgba(255,255,255,.65);--glass-border:rgba(255,255,255,.85);--transition-fast:.2s ease;--transition-base:.3s ease;--transition-slow:.5s ease}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;color:var(--text);background:var(--bg);line-height:1.7;overflow-x:hidden;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;transition:background var(--transition-base),color var(--transition-base)}
body::before{content:"";position:fixed;top:0;left:0;width:100%;height:100%;background:radial-gradient(circle at 15% 20%,rgba(255,107,157,.08) 0,transparent 50%),radial-gradient(circle at 85% 80%,rgba(161,140,209,.08) 0,transparent 50%);pointer-events:none;z-index:-1}
.container{max-width:1200px;margin:0 auto;padding:0 20px;width:100%}
a{color:var(--primary);text-decoration:none;transition:color var(--transition-fast)}
a:hover{color:var(--primary-dark)}
img,svg{max-width:100%;height:auto;display:block}
button{font-family:inherit;cursor:pointer}
::selection{background:var(--primary);color:#fff}
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:linear-gradient(180deg,var(--primary),var(--accent));border-radius:4px}
::-webkit-scrollbar-thumb:hover{background:var(--primary-dark)}
header{background:var(--glass-bg);backdrop-filter:blur(20px) saturate(180%);-webkit-backdrop-filter:blur(20px) saturate(180%);box-shadow:0 2px 20px rgba(255,107,157,.08);border-bottom:1px solid var(--glass-border);position:sticky;top:0;z-index:1000;transition:background var(--transition-base),box-shadow var(--transition-base)}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:12px 0;gap:16px}
.logo{display:flex;align-items:center;gap:10px;font-size:1.5rem;font-weight:700;color:var(--primary);flex-shrink:0;transition:transform var(--transition-base)}
.logo:hover{transform:scale(1.03)}
.logo svg{width:40px;height:40px;transition:transform var(--transition-slow)}
.logo:hover svg{transform:rotate(360deg)}
.logo span{background:linear-gradient(135deg,var(--primary),var(--accent));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
nav ul{display:flex;gap:24px;list-style:none;align-items:center}
nav a{text-decoration:none;color:var(--text-secondary);font-size:.95rem;font-weight:500;position:relative;padding:4px 0;transition:color var(--transition-fast)}
nav a::after{content:"";position:absolute;bottom:-2px;left:0;width:0;height:2px;background:linear-gradient(90deg,var(--primary),var(--accent));border-radius:2px;transition:width var(--transition-base)}
nav a:hover{color:var(--primary)}
nav a:hover::after{width:100%}
.search-box{display:flex;align-items:center;border:1px solid var(--border);border-radius:24px;padding:4px 12px;background:rgba(255,255,255,.6);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);transition:border-color var(--transition-fast),box-shadow var(--transition-fast),background var(--transition-fast)}
.search-box:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(255,107,157,.15);background:rgba(255,255,255,.9)}
.search-box input{border:none;background:transparent;outline:none;padding:6px;font-size:.9rem;width:160px;color:var(--text);transition:width var(--transition-base)}
.search-box input:focus{width:200px}
.search-box input::placeholder{color:var(--text-muted)}
.search-box button{background:none;border:none;cursor:pointer;color:var(--primary);font-size:1rem;padding:4px;border-radius:50%;transition:transform var(--transition-fast),background var(--transition-fast)}
.search-box button:hover{transform:scale(1.15);background:rgba(255,107,157,.1)}
.dark-toggle{background:rgba(255,255,255,.6);border:1px solid var(--border);border-radius:50%;width:38px;height:38px;cursor:pointer;font-size:1.1rem;display:flex;align-items:center;justify-content:center;transition:transform var(--transition-base),background var(--transition-fast),border-color var(--transition-fast);flex-shrink:0}
.dark-toggle:hover{transform:rotate(20deg) scale(1.1);background:rgba(255,107,157,.12);border-color:var(--primary)}
.mobile-menu-btn{display:none;background:none;border:none;font-size:1.6rem;cursor:pointer;color:var(--text);padding:4px;transition:transform var(--transition-fast)}
.mobile-menu-btn:hover{transform:scale(1.1)}
main{padding:24px 0;min-height:60vh}
.breadcrumb{font-size:.85rem;color:var(--text-muted);margin-bottom:20px;display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.breadcrumb a{color:var(--text-muted);text-decoration:none;transition:color var(--transition-fast)}
.breadcrumb a:hover{color:var(--primary)}
.hero{background:linear-gradient(135deg,#ff9a9e 0%,#fad0c4 35%,#fbc2eb 70%,#a18cd1 100%);background-size:200% 200%;animation:gradientShift 12s ease infinite;border-radius:var(--radius-xl);padding:48px 40px;margin-bottom:40px;display:flex;align-items:center;gap:40px;flex-wrap:wrap;position:relative;overflow:hidden;box-shadow:0 16px 48px rgba(255,107,157,.25)}
.hero::before{content:"";position:absolute;top:-50%;right:-10%;width:400px;height:400px;background:radial-gradient(circle,rgba(255,255,255,.25) 0,transparent 70%);border-radius:50%;pointer-events:none}
.hero::after{content:"";position:absolute;bottom:-30%;left:-5%;width:300px;height:300px;background:radial-gradient(circle,rgba(255,255,255,.15) 0,transparent 70%);border-radius:50%;pointer-events:none}
@keyframes gradientShift{0%{background-position:0% 50%}50%{background-position:100% 50%}100%{background-position:0% 50%}}
.hero-text{flex:1;min-width:280px;position:relative;z-index:1}
.hero-text h1{font-size:2rem;margin-bottom:16px;color:#fff;text-shadow:0 2px 12px rgba(0,0,0,.15);line-height:1.35;font-weight:800}
.hero-text p{color:#fff;font-size:1rem;opacity:.95;text-shadow:0 1px 6px rgba(0,0,0,.1);line-height:1.8}
.hero-svg{flex:0 0 200px;text-align:center;position:relative;z-index:1;animation:floatY 5s ease-in-out infinite}
@keyframes floatY{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
.section-title{font-size:1.6rem;margin:48px 0 24px;padding-bottom:12px;position:relative;display:inline-block;color:var(--text);font-weight:700}
.section-title::after{content:"";position:absolute;bottom:0;left:0;width:100%;height:3px;background:linear-gradient(90deg,var(--primary),var(--accent));border-radius:3px;animation:lineGrow .8s ease forwards}
@keyframes lineGrow{from{width:0}to{width:100%}}
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px;margin-bottom:32px}
.card{background:var(--glass-bg);backdrop-filter:blur(12px) saturate(160%);-webkit-backdrop-filter:blur(12px) saturate(160%);border:1px solid var(--glass-border);border-radius:var(--radius-md);padding:24px;box-shadow:var(--shadow-sm);transition:transform var(--transition-base),box-shadow var(--transition-base),border-color var(--transition-base),background var(--transition-base);position:relative;overflow:hidden}
.card::before{content:"";position:absolute;top:0;left:0;width:100%;height:3px;background:linear-gradient(90deg,var(--primary),var(--accent));transform:scaleX(0);transform-origin:left;transition:transform var(--transition-base)}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:rgba(255,107,157,.3)}
.card:hover::before{transform:scaleX(1)}
.card h3{font-size:1.15rem;margin-bottom:12px;color:var(--text);font-weight:700;transition:color var(--transition-fast)}
.card:hover h3{color:var(--primary)}
.card p{font-size:.92rem;color:var(--text-secondary);margin-bottom:12px;line-height:1.75}
.card p:last-child{margin-bottom:0}
.card .meta{font-size:.8rem;color:var(--text-muted);margin-bottom:10px;display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.card a{color:var(--primary);font-weight:500}
.card a:hover{color:var(--primary-dark);text-decoration:underline}
#brand .card,#products .card,#solutions .card,#cases .card,#articles .card,#contact .card,#sitemap .card,#legal .card{opacity:1}
.faq-item{border-bottom:1px solid var(--border);padding:18px 0;cursor:pointer;transition:border-color var(--transition-fast),background var(--transition-fast);border-radius:var(--radius-sm);padding-left:8px;padding-right:8px}
.faq-item:hover{background:rgba(255,107,157,.04)}
.faq-item h3{font-size:1.05rem;color:var(--text);display:flex;justify-content:space-between;align-items:center;gap:12px;font-weight:600;transition:color var(--transition-fast);user-select:none}
.faq-item:hover h3{color:var(--primary)}
.faq-item h3::after{content:"+";font-size:1.5rem;color:var(--primary);transition:transform var(--transition-base);flex-shrink:0;font-weight:300;line-height:1}
.faq-item.open h3::after{transform:rotate(45deg)}
.faq-item.open{background:rgba(255,107,157,.05);border-bottom-color:var(--primary)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height var(--transition-slow),padding-top var(--transition-base),opacity var(--transition-base);font-size:.92rem;color:var(--text-secondary);padding-top:0;opacity:0;line-height:1.8}
.faq-item.open .faq-answer{max-height:600px;padding-top:14px;opacity:1}
.howto-step{background:var(--glass-bg);backdrop-filter:blur(12px) saturate(160%);-webkit-backdrop-filter:blur(12px) saturate(160%);border:1px solid var(--glass-border);border-left:4px solid var(--primary);padding:18px 22px;margin-bottom:14px;border-radius:0 var(--radius-md) var(--radius-md) 0;transition:transform var(--transition-base),box-shadow var(--transition-base),border-left-color var(--transition-base);position:relative;overflow:hidden}
.howto-step::after{content:"";position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(90deg,rgba(255,107,157,.06),transparent);opacity:0;transition:opacity var(--transition-base);pointer-events:none}
.howto-step:hover{transform:translateX(6px);box-shadow:var(--shadow-sm);border-left-color:var(--accent)}
.howto-step:hover::after{opacity:1}
.howto-step h4{margin-bottom:8px;color:var(--text);font-weight:700;font-size:1rem;position:relative;z-index:1}
.howto-step p{font-size:.92rem;color:var(--text-secondary);position:relative;z-index:1;line-height:1.75}
.back-to-top{position:fixed;bottom:32px;right:32px;width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;border:none;font-size:1.4rem;cursor:pointer;box-shadow:0 4px 20px rgba(255,107,157,.45);display:none;align-items:center;justify-content:center;z-index:999;transition:transform var(--transition-base),box-shadow var(--transition-base),opacity var(--transition-base);opacity:0}
.back-to-top.show{display:flex;opacity:1;animation:fadeInUp .3s ease}
.back-to-top:hover{transform:translateY(-4px) scale(1.08);box-shadow:0 8px 28px rgba(255,107,157,.6)}
.back-to-top:active{transform:translateY(-2px) scale(1.02)}
@keyframes fadeInUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}
footer{background:linear-gradient(180deg,#2d2d2d 0%,#1f1f1f 100%);color:#bbb;padding:48px 0 28px;margin-top:56px;position:relative;overflow:hidden}
footer::before{content:"";position:absolute;top:0;left:0;width:100%;height:3px;background:linear-gradient(90deg,var(--primary),var(--accent),var(--primary))}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:32px;margin-bottom:36px}
.footer-grid h4{color:#fff;margin-bottom:16px;font-size:1rem;font-weight:700;position:relative;padding-bottom:8px}
.footer-grid h4::after{content:"";position:absolute;bottom:0;left:0;width:32px;height:2px;background:linear-gradient(90deg,var(--primary),var(--accent));border-radius:2px}
.footer-grid a{color:#bbb;text-decoration:none;font-size:.88rem;display:block;margin-bottom:8px;transition:color var(--transition-fast),transform var(--transition-fast),padding-left var(--transition-fast)}
.footer-grid a:hover{color:var(--primary);transform:translateX(4px);padding-left:4px}
.footer-grid p{font-size:.85rem;line-height:1.8;color:#999}
.footer-bottom{text-align:center;font-size:.82rem;border-top:1px solid #444;padding-top:24px;color:#888;line-height:2}
.footer-bottom p{margin-bottom:4px}
.dark-mode{--bg:#1a1a2e;--bg-alt:#16213e;--bg-elevated:#1f2a44;--text:#e0e0e0;--text-secondary:#aaa;--text-muted:#777;--border:#333;--glass-bg:rgba(31,42,68,.7);--glass-border:rgba(255,255,255,.08);--shadow-sm:0 2px 12px rgba(0,0,0,.3);--shadow-md:0 8px 24px rgba(0,0,0,.4)}
.dark-mode body,.dark-mode{background:var(--bg);color:var(--text)}
.dark-mode body::before{background:radial-gradient(circle at 15% 20%,rgba(255,107,157,.06) 0,transparent 50%),radial-gradient(circle at 85% 80%,rgba(161,140,209,.06) 0,transparent 50%)}
.dark-mode header{background:rgba(22,33,62,.8);border-bottom-color:rgba(255,255,255,.06);box-shadow:0 2px 20px rgba(0,0,0,.3)}
.dark-mode .card{background:var(--glass-bg);border-color:var(--glass-border);color:var(--text)}
.dark-mode .card p{color:var(--text-secondary)}
.dark-mode .card h3{color:var(--text)}
.dark-mode .howto-step{background:var(--glass-bg);border-color:var(--glass-border)}
.dark-mode .howto-step h4{color:var(--text)}
.dark-mode .howto-step p{color:var(--text-secondary)}
.dark-mode .faq-item{border-color:var(--border)}
.dark-mode .faq-item h3{color:var(--text)}
.dark-mode .faq-item:hover{background:rgba(255,107,157,.08)}
.dark-mode .faq-item.open{background:rgba(255,107,157,.1)}
.dark-mode .search-box{background:rgba(31,42,68,.7);border-color:var(--border)}
.dark-mode .search-box input{color:var(--text)}
.dark-mode .search-box input::placeholder{color:var(--text-muted)}
.dark-mode .search-box:focus-within{background:rgba(31,42,68,.95)}
.dark-mode .dark-toggle{background:rgba(31,42,68,.7);border-color:var(--border);color:var(--text)}
.dark-mode .mobile-menu-btn{color:var(--text)}
.dark-mode .breadcrumb,.dark-mode .breadcrumb a{color:var(--text-muted)}
.dark-mode .breadcrumb a:hover{color:var(--primary)}
.dark-mode footer{background:linear-gradient(180deg,#0f0f1a 0%,#08080f 100%)}
.dark-mode .section-title{color:var(--text)}
.dark-mode nav a{color:var(--text-secondary)}
.dark-mode nav a:hover{color:var(--primary)}
.dark-mode .hero{box-shadow:0 16px 48px rgba(0,0,0,.4)}
.dark-mode .back-to-top{box-shadow:0 4px 20px rgba(255,107,157,.3)}
.dark-mode .card::before{opacity:.9}
.dark-mode .footer-grid a:hover{color:var(--primary)}
@media(max-width:1024px){
.search-box input{width:120px}
.card-grid{grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:20px}
}
@media(max-width:768px){
nav ul{display:none;flex-direction:column;position:absolute;top:100%;left:0;right:0;background:var(--glass-bg);backdrop-filter:blur(20px) saturate(180%);-webkit-backdrop-filter:blur(20px) saturate(180%);padding:16px 20px;box-shadow:0 12px 32px rgba(0,0,0,.12);border-bottom:1px solid var(--glass-border);gap:4px;animation:slideDown .3s ease}
nav ul.open{display:flex}
nav ul li{width:100%}
nav ul a{display:block;padding:12px 8px;border-radius:var(--radius-sm);font-size:1rem}
nav ul a::after{display:none}
nav ul a:hover{background:rgba(255,107,157,.08)}
@keyframes slideDown{from{opacity:0;transform:translateY(-12px)}to{opacity:1;transform:translateY(0)}}
.mobile-menu-btn{display:block}
.hero{padding:28px 24px;gap:20px;border-radius:var(--radius-lg)}
.hero-text h1{font-size:1.5rem}
.hero-text p{font-size:.92rem}
.hero-svg{flex:0 0 140px}
.hero-svg svg{width:140px;height:140px}
.search-box{display:none}
.section-title{font-size:1.3rem;margin:36px 0 20px}
.card-grid{grid-template-columns:1fr;gap:16px}
.card{padding:20px}
.card h3{font-size:1.05rem}
.card p{font-size:.88rem}
.faq-item h3{font-size:.98rem}
.faq-answer{font-size:.88rem}
.howto-step{padding:16px 18px}
.howto-step h4{font-size:.95rem}
.howto-step p{font-size:.88rem}
.footer-grid{grid-template-columns:1fr 1fr;gap:24px}
.back-to-top{bottom:20px;right:20px;width:44px;height:44px;font-size:1.2rem}
.header-inner{padding:10px 0}
.logo{font-size:1.25rem}
.logo svg{width:34px;height:34px}
}
@media(max-width:480px){
.container{padding:0 16px}
.hero{padding:22px 18px}
.hero-text h1{font-size:1.3rem}
.hero-svg{flex:0 0 110px}
.hero-svg svg{width:110px;height:110px}
.footer-grid{grid-template-columns:1fr}
.section-title{font-size:1.2rem}
.card{padding:18px}
.breadcrumb{font-size:.8rem}
}
@media(min-width:769px){
nav ul{display:flex!important}
}
@media(prefers-reduced-motion:reduce){
*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
}
@media print{
header,footer,.back-to-top,.dark-toggle,.search-box,.mobile-menu-btn{display:none!important}
body{background:#fff;color:#000}
.card{box-shadow:none;border:1px solid #ddd}
.hero{background:#f5f5f5;box-shadow:none}
.hero-text h1,.hero-text p{color:#000;text-shadow:none}
}
@supports not (backdrop-filter:blur(1px)){
header{background:rgba(255,255,255,.98)}
.card{background:rgba(255,255,255,.98)}
.howto-step{background:rgba(255,255,255,.98)}
.dark-mode header{background:rgba(22,33,62,.98)}
.dark-mode .card{background:rgba(31,42,68,.98)}
.dark-mode .howto-step{background:rgba(31,42,68,.98)}
}