:root{--primary:#1a3a5c;--primary-light:#24507a;--primary-lighter:#3a6ea5;--accent:#f2b705;--accent2:#e8590c;--bg:#f7f9fb;--card:#ffffff;--text:#1f2933;--muted:#5c6b7a;--line:#e2e8f0;--radius:14px;--radius-lg:20px;--glass:rgba(255,255,255,0.72);--glass-border:rgba(255,255,255,0.35);--shadow-sm:0 2px 10px rgba(0,0,0,.04);--shadow-md:0 8px 24px rgba(26,58,92,.1);--shadow-lg:0 16px 40px rgba(26,58,92,.16);--gradient-banner:linear-gradient(135deg,#1a3a5c 0%,#24507a 45%,#3a6ea5 100%);--gradient-accent:linear-gradient(135deg,#f2b705 0%,#e8590c 100%)}
html[data-theme="dark"]{--bg:#0d1520;--card:#16222f;--text:#e6edf3;--muted:#9db0c0;--line:#243447;--primary:#0f2438;--glass:rgba(22,34,47,0.72);--glass-border:rgba(255,255,255,0.08);--shadow-sm:0 2px 10px rgba(0,0,0,.2);--shadow-md:0 8px 24px rgba(0,0,0,.3);--shadow-lg:0 16px 40px rgba(0,0,0,.45);--gradient-banner:linear-gradient(135deg,#0a1826 0%,#0f2438 45%,#1a3a5c 100%)}
*{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",system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);line-height:1.8;font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;transition:background .4s ease,color .4s ease;overflow-x:hidden}
a{color:inherit;text-decoration:none;transition:color .2s ease}
img,svg{max-width:100%;display:block}
ul{list-style:none}
button{font-family:inherit}
.container{max-width:1180px;margin:0 auto;padding:0 20px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--accent);color:#000;padding:10px 16px;z-index:9999;border-radius:0 0 8px 0;font-weight:700}
.skip-link:focus{left:0}
::selection{background:var(--accent);color:#1a1a1a}
.topbar{background:var(--primary);color:#dfe8f0;font-size:13px;transition:background .4s ease}
.topbar .container{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:6px;padding-top:8px;padding-bottom:8px}
.topbar a{color:#dfe8f0}
.topbar a:hover{color:var(--accent)}
.topbar-info{display:flex;gap:18px;flex-wrap:wrap;align-items:center}
.nav{position:sticky;top:0;z-index:1000;background:var(--glass);-webkit-backdrop-filter:saturate(180%) blur(16px);backdrop-filter:saturate(180%) blur(16px);border-bottom:1px solid var(--line);box-shadow:var(--shadow-sm);transition:box-shadow .3s ease,background .4s ease,border-color .4s ease}
.nav.scrolled{box-shadow:var(--shadow-md)}
.nav .container{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:12px;padding-bottom:12px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:22px;color:var(--primary);letter-spacing:1px;transition:transform .25s ease}
.logo:hover{transform:scale(1.03)}
html[data-theme="dark"] .logo{color:var(--accent)}
.logo-mark{width:40px;height:40px;border-radius:12px;background:var(--gradient-banner);display:flex;align-items:center;justify-content:center;color:var(--accent);font-size:22px;font-weight:900;box-shadow:0 4px 12px rgba(26,58,92,.3);transition:transform .3s ease,box-shadow .3s ease}
.logo:hover .logo-mark{transform:rotate(-6deg) scale(1.05);box-shadow:0 6px 18px rgba(242,183,5,.35)}
.nav-links{display:flex;gap:4px;flex-wrap:wrap}
.nav-links a{padding:8px 12px;border-radius:8px;font-size:15px;color:var(--text);transition:background .25s ease,color .25s ease,transform .2s ease;display:inline-block}
.nav-links a:hover{background:rgba(242,183,5,.16);color:var(--primary);transform:translateY(-1px)}
html[data-theme="dark"] .nav-links a:hover{color:var(--accent);background:rgba(242,183,5,.12)}
.nav-tools{display:flex;align-items:center;gap:10px}
.search-box{display:flex;align-items:center;border:1px solid var(--line);border-radius:999px;padding:4px 6px 4px 14px;background:var(--bg);transition:border-color .25s ease,box-shadow .25s ease}
.search-box:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px rgba(242,183,5,.18)}
.search-box input{border:none;background:transparent;outline:none;font-size:14px;color:var(--text);width:130px;font-family:inherit}
.search-box input::placeholder{color:var(--muted)}
.search-box button{border:none;background:var(--gradient-banner);color:#fff;border-radius:999px;padding:6px 12px;font-size:13px;cursor:pointer;transition:opacity .2s ease,transform .2s ease}
.search-box button:hover{opacity:.9;transform:scale(1.04)}
.theme-toggle,.menu-toggle{border:1px solid var(--line);background:var(--card);color:var(--text);border-radius:10px;width:40px;height:40px;cursor:pointer;font-size:18px;display:flex;align-items:center;justify-content:center;transition:transform .25s ease,background .25s ease,border-color .25s ease,box-shadow .25s ease}
.theme-toggle:hover,.menu-toggle:hover{transform:translateY(-2px);border-color:var(--accent);box-shadow:var(--shadow-sm)}
.theme-toggle:active,.menu-toggle:active{transform:scale(.94)}
.menu-toggle{display:none}
.banner{position:relative;overflow:hidden;background:var(--gradient-banner);color:#fff;transition:background .4s ease}
.banner::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 78% 22%,rgba(242,183,5,.22),transparent 46%),radial-gradient(circle at 18% 82%,rgba(58,110,165,.35),transparent 52%);pointer-events:none;z-index:1}
.banner::after{content:"";position:absolute;width:520px;height:520px;border-radius:50%;border:1px solid rgba(255,255,255,.08);top:-180px;right:-120px;pointer-events:none;z-index:1}
.slides{position:relative;min-height:420px;z-index:2}
.slide{position:absolute;inset:0;opacity:0;visibility:hidden;transition:opacity .8s ease,visibility .8s ease;display:flex;align-items:center;padding:60px 0}
.slide.active{opacity:1;visibility:visible;position:relative;z-index:2}
.slide .container{display:grid;grid-template-columns:1.2fr .8fr;gap:36px;align-items:center}
.slide h1,.slide h2{font-size:clamp(26px,4vw,44px);line-height:1.3;margin-bottom:16px;font-weight:800;letter-spacing:.5px}
.slide p{font-size:17px;color:#d5e3f0;max-width:560px;margin-bottom:24px;line-height:1.9}
.slide-badge{display:inline-block;background:rgba(242,183,5,.18);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border:1px solid rgba(242,183,5,.55);color:var(--accent);padding:4px 14px;border-radius:999px;font-size:13px;margin-bottom:16px;font-weight:600;letter-spacing:.5px}
.btn-row{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-block;padding:13px 28px;border-radius:10px;font-weight:700;font-size:15px;transition:transform .25s ease,box-shadow .25s ease,background .25s ease;cursor:pointer;border:none}
.btn-primary{background:var(--gradient-accent);color:#1a1a1a;box-shadow:0 4px 14px rgba(242,183,5,.3)}
.btn-ghost{border:1.5px solid rgba(255,255,255,.55);color:#fff;background:rgba(255,255,255,.06);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}
.btn:hover{transform:translateY(-3px);box-shadow:0 12px 26px rgba(0,0,0,.25)}
.btn-primary:hover{box-shadow:0 12px 26px rgba(242,183,5,.4)}
.btn-ghost:hover{background:rgba(255,255,255,.14);border-color:#fff}
.btn:active{transform:translateY(-1px) scale(.98)}
.slide-art{display:flex;justify-content:center;animation:floatSoft 6s ease-in-out infinite}
@keyframes floatSoft{0%,100%{transform:translateY(0)}50%{transform:translateY(-14px)}}
.banner-dots{position:absolute;bottom:18px;left:50%;transform:translateX(-50%);display:flex;gap:10px;z-index:5}
.banner-dots button{width:11px;height:11px;border-radius:50%;border:none;background:rgba(255,255,255,.4);cursor:pointer;padding:0;transition:width .3s ease,background .3s ease}
.banner-dots button:hover{background:rgba(255,255,255,.7)}
.banner-dots button.active{background:var(--accent);width:28px;border-radius:6px}
section{padding:64px 0;transition:background .4s ease}
.sec-head{text-align:center;max-width:760px;margin:0 auto 44px}
.sec-head .kicker{color:var(--accent2);font-weight:700;font-size:14px;letter-spacing:2px;text-transform:uppercase;display:inline-block}
.sec-head h2{font-size:clamp(24px,3vw,34px);margin:10px 0 14px;font-weight:800;color:var(--primary);transition:color .4s ease;line-height:1.35}
html[data-theme="dark"] .sec-head h2{color:var(--accent)}
.sec-head p{color:var(--muted);font-size:16px;line-height:1.9}
.grid{display:grid;gap:22px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px;transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease,background .4s ease;position:relative}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:rgba(242,183,5,.4)}
.card h3{font-size:19px;margin-bottom:10px;color:var(--primary);transition:color .4s ease;line-height:1.5}
html[data-theme="dark"] .card h3{color:var(--accent)}
.card p{color:var(--muted);font-size:15px;line-height:1.85}
.icon-box{width:52px;height:52px;border-radius:12px;background:rgba(26,58,92,.08);display:flex;align-items:center;justify-content:center;margin-bottom:16px;transition:transform .35s ease,background .35s ease}
.card:hover .icon-box{transform:scale(1.08) rotate(-4deg);background:rgba(242,183,5,.18)}
html[data-theme="dark"] .icon-box{background:rgba(242,183,5,.12)}
.stats{background:var(--gradient-banner);color:#fff;position:relative;overflow:hidden}
.stats::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 15% 20%,rgba(242,183,5,.14),transparent 40%),radial-gradient(circle at 85% 80%,rgba(58,110,165,.3),transparent 45%);pointer-events:none}
.stats .container{position:relative;z-index:1}
.stats .grid{text-align:center}
.stat-num{font-size:clamp(30px,4vw,46px);font-weight:900;color:var(--accent);line-height:1.1;letter-spacing:1px}
.stat-label{color:#c8d8e8;font-size:15px;margin-top:6px}
.article-card{display:flex;flex-direction:column;height:100%}
.article-meta{font-size:13px;color:var(--muted);display:flex;gap:14px;margin-bottom:10px;flex-wrap:wrap;align-items:center}
.article-meta time{font-weight:600}
.article-card h3{font-size:18px;line-height:1.5;margin-bottom:10px}
.article-card .excerpt{flex:1;font-size:14.5px;color:var(--muted);line-height:1.85}
.read-more{color:var(--accent2);font-weight:700;font-size:14px;margin-top:14px;display:inline-block;transition:gap .25s ease,color .25s ease,transform .25s ease}
.read-more:hover{text-decoration:underline;transform:translateX(4px)}
.faq-list{max-width:900px;margin:0 auto}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:12px;margin-bottom:12px;overflow:hidden;transition:box-shadow .3s ease,border-color .3s ease}
.faq-item:hover{border-color:rgba(242,183,5,.4)}
.faq-item.open{box-shadow:var(--shadow-md);border-color:rgba(242,183,5,.5)}
.faq-q{width:100%;text-align:left;background:none;border:none;padding:18px 22px;font-size:16px;font-weight:700;color:var(--text);cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px;font-family:inherit;transition:color .25s ease}
.faq-q:hover{color:var(--accent2)}
.faq-q .plus{font-size:22px;color:var(--accent2);transition:transform .35s ease;flex-shrink:0;line-height:1}
.faq-item.open .plus{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease}
.faq-a-inner{padding:0 22px 20px;color:var(--muted);font-size:15px;line-height:1.9}
.howto{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);padding:36px;max-width:960px;margin:0 auto;box-shadow:var(--shadow-sm);transition:box-shadow .3s ease,background .4s ease,border-color .4s ease}
.howto:hover{box-shadow:var(--shadow-md)}
.howto ol{padding-left:22px;margin:18px 0}
.howto li{margin-bottom:14px;color:var(--muted);line-height:1.85}
.howto li strong{color:var(--text)}
.howto p{color:var(--muted);line-height:1.9}
.howto h3{color:var(--primary);margin:24px 0 10px;font-size:18px;transition:color .4s ease}
html[data-theme="dark"] .howto h3{color:var(--accent)}
.howto h3:first-child{margin-top:0}
.case-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease,background .4s ease}
.case-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:rgba(242,183,5,.4)}
.case-body{padding:24px}
.case-tag{display:inline-block;background:rgba(232,89,12,.1);color:var(--accent2);font-size:12px;font-weight:700;padding:3px 10px;border-radius:6px;margin-bottom:12px;transition:background .25s ease}
.case-card:hover .case-tag{background:rgba(232,89,12,.18)}
.case-body h3{font-size:18px;line-height:1.5;margin-bottom:10px;color:var(--primary)}
html[data-theme="dark"] .case-body h3{color:var(--accent)}
.case-body p{font-size:14.5px;color:var(--muted);line-height:1.85}
.quote{font-style:normal;color:var(--muted);font-size:15px;border-left:3px solid var(--accent);padding-left:16px;margin-top:14px;line-height:1.85;transition:border-color .25s ease}
.case-card:hover .quote{border-color:var(--accent2)}
.reviewer{display:flex;align-items:center;gap:12px;margin-top:18px}
.avatar{width:44px;height:44px;border-radius:50%;background:var(--gradient-banner);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:16px;flex-shrink:0;transition:transform .3s ease}
.case-card:hover .avatar{transform:scale(1.08)}
.reviewer-name{font-weight:700;font-size:14px}
.reviewer-role{font-size:12px;color:var(--muted)}
.news-list{max-width:900px;margin:0 auto}
.news-item{display:flex;gap:20px;padding:20px 0;border-bottom:1px dashed var(--line);align-items:flex-start;transition:transform .25s ease}
.news-item:hover{transform:translateX(6px)}
.news-item:last-child{border-bottom:none}
.news-date{flex-shrink:0;text-align:center;background:var(--gradient-banner);color:#fff;border-radius:10px;padding:10px 14px;min-width:74px;transition:box-shadow .25s ease}
.news-item:hover .news-date{box-shadow:0 6px 16px rgba(26,58,92,.25)}
.news-date .d{font-size:22px;font-weight:800;color:var(--accent);line-height:1}
.news-date .m{font-size:12px;color:#c8d8e8}
.news-content h3{font-size:17px;margin-bottom:6px;line-height:1.5;transition:color .25s ease}
.news-item:hover .news-content h3{color:var(--accent2)}
.news-content p{font-size:14px;color:var(--muted);line-height:1.85}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.contact-info li{list-style:none;display:flex;gap:14px;padding:14px 0;border-bottom:1px solid var(--line);font-size:15px;transition:padding-left .25s ease}
.contact-info li:hover{padding-left:6px}
.contact-info li:last-child{border-bottom:none}
.contact-info .lbl{color:var(--muted);min-width:80px;flex-shrink:0;font-weight:600}
.map-box{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:var(--card);padding:20px;transition:box-shadow .3s ease,background .4s ease,border-color .4s ease}
.map-box:hover{box-shadow:var(--shadow-md)}
.map-box h3{color:var(--primary)}
html[data-theme="dark"] .map-box h3{color:var(--accent)}
.form-row{margin-bottom:16px}
.form-row label{display:block;font-size:14px;font-weight:600;margin-bottom:6px}
.form-row input,.form-row textarea{width:100%;padding:11px 14px;border:1px solid var(--line);border-radius:10px;background:var(--bg);color:var(--text);font-family:inherit;font-size:14px;outline:none;transition:border-color .25s ease,box-shadow .25s ease,background .4s ease}
.form-row input::placeholder,.form-row textarea::placeholder{color:var(--muted)}
.form-row input:focus,.form-row textarea:focus{border-color:var(--accent2);box-shadow:0 0 0 3px rgba(232,89,12,.14)}
.form-row textarea{resize:vertical;min-height:110px}
.anchor-nav{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin-bottom:40px}
.anchor-nav a{font-size:14px;padding:7px 16px;border-radius:999px;border:1px solid var(--line);background:var(--card);color:var(--muted);transition:border-color .25s ease,color .25s ease,transform .25s ease,box-shadow .25s ease}
.anchor-nav a:hover{border-color:var(--accent2);color:var(--accent2);transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.prose p{margin-bottom:16px;color:var(--muted);font-size:15.5px;line-height:1.9}
.prose p strong{color:var(--text)}
.prose h3{margin:26px 0 12px;color:var(--primary);font-size:19px;transition:color .4s ease}
html[data-theme="dark"] .prose h3{color:var(--accent)}
.prose h4{margin:20px 0 10px;font-size:16px;color:var(--text)}
.breadcrumb{padding:16px 0;font-size:13.5px;color:var(--muted)}
.breadcrumb ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.breadcrumb li{display:flex;align-items:center}
.breadcrumb li::after{content:"›";margin-left:6px;color:var(--muted)}
.breadcrumb li:last-child::after{content:""}
.breadcrumb a:hover{color:var(--accent2)}
.badge-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
.badge-row span{border:1px solid var(--line);border-radius:6px;padding:4px 10px;font-size:12px;color:var(--muted);transition:border-color .25s ease,color .25s ease,transform .25s ease;background:rgba(242,183,5,.06)}
.badge-row span:hover{border-color:var(--accent);color:var(--accent2);transform:translateY(-2px)}
footer{background:#0f2438;color:#a9bccd;padding:56px 0 0;font-size:14px;transition:background .4s ease}
footer h4{color:#fff;font-size:16px;margin-bottom:16px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:34px;padding-bottom:40px}
.footer-grid ul{list-style:none}
.footer-grid li{margin-bottom:10px;transition:transform .2s ease}
.footer-grid li:hover{transform:translateX(3px)}
.footer-grid a{transition:color .2s ease}
.footer-grid a:hover{color:var(--accent)}
.footer-about p{margin-top:12px;line-height:1.9;color:#8fa4b6}
.footer-about .badge-row span{border-color:#2a4a66;color:#8fa4b6;background:transparent}
.footer-about .badge-row span:hover{border-color:var(--accent);color:var(--accent)}
.footer-bottom{border-top:1px solid #1e3a52;padding:22px 0;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;color:#7c93a6;font-size:13px;align-items:center}
.footer-bottom a{color:#a9bccd}
.footer-bottom a:hover{color:var(--accent)}
.back-top{position:fixed;right:22px;bottom:26px;width:48px;height:48px;border-radius:50%;background:var(--gradient-accent);color:#1a1a1a;border:none;font-size:20px;cursor:pointer;display:none;align-items:center;justify-content:center;box-shadow:0 8px 20px rgba(0,0,0,.25);z-index:900;transition:transform .25s ease,box-shadow .25s ease,opacity .3s ease}
.back-top.show{display:flex;animation:fadeInUp .4s ease}
.back-top:hover{transform:translateY(-4px) scale(1.06);box-shadow:0 12px 28px rgba(242,183,5,.4)}
.back-top:active{transform:scale(.94)}
@keyframes fadeInUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:none}
.reveal.visible .card{animation:none}
@media(max-width:960px){
.g4{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(2,1fr)}
.slide .container{grid-template-columns:1fr}
.slide-art{display:none}
.footer-grid{grid-template-columns:1fr 1fr}
.contact-grid{grid-template-columns:1fr}
.search-box input{width:110px}
}
@media(max-width:720px){
.topbar .container{justify-content:center;text-align:center}
.topbar-info{gap:10px;font-size:12px;justify-content:center}
.nav-links{display:none;position:absolute;top:100%;left:0;right:0;background:var(--glass);-webkit-backdrop-filter:saturate(180%) blur(18px);backdrop-filter:saturate(180%) blur(18px);flex-direction:column;padding:14px 20px;border-bottom:1px solid var(--line);box-shadow:var(--shadow-lg);animation:menuDrop .3s ease}
@keyframes menuDrop{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}
.nav-links.open{display:flex}
.nav-links a{padding:12px 14px;font-size:16px}
.menu-toggle{display:flex}
.search-box input{width:90px}
.g2,.g3,.g4{grid-template-columns:1fr}
.stats .grid{grid-template-columns:repeat(2,1fr);gap:28px 12px}
.footer-grid{grid-template-columns:1fr;gap:28px}
.howto{padding:24px}
.news-item{flex-direction:column;gap:10px}
.news-item:hover{transform:none}
.slide{padding:44px 0}
.slides{min-height:auto}
.slide p{font-size:15.5px}
.btn{padding:12px 22px;font-size:14px}
section{padding:48px 0}
.sec-head{margin-bottom:32px}
.back-top{right:16px;bottom:18px;width:44px;height:44px}
}
@media(max-width:400px){
.search-box{display:none}
.logo{font-size:19px}
.logo-mark{width:36px;height:36px;font-size:19px}
}
@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 print{
.nav,.topbar,.back-top,.banner-dots,.theme-toggle,.menu-toggle,.search-box{display:none!important}
body{background:#fff;color:#000}
.card,.howto,.faq-item,.case-card{box-shadow:none;border:1px solid #ccc}
}