:root{--bg:#f7f5f0;--bg-soft:#efeae0;--card:#ffffff;--card-glass:rgba(255,255,255,.62);--border:#e4ded2;--text:#1b2a41;--text-soft:#3a4a63;--text-mute:#8a8577;--brand:#1b2a41;--brand-2:#2f4156;--accent:#c9a227;--accent-soft:#f0ead9;--accent-deep:#8a6d1a;--shadow:0 10px 30px rgba(27,42,65,.10);--shadow-hover:0 18px 44px rgba(27,42,65,.18);--radius:18px;--radius-sm:12px;--radius-pill:999px;--nav-h:64px;--ease:cubic-bezier(.22,.61,.36,1)}
@media (prefers-color-scheme: dark){
:root{--bg:#0e1622;--bg-soft:#131e2e;--card:#16233a;--card-glass:rgba(22,35,58,.62);--border:#243550;--text:#e9e4d8;--text-soft:#c3c9d6;--text-mute:#8b93a5;--brand:#0e1622;--brand-2:#1b2a41;--accent:#e0b83a;--accent-soft:#2a2415;--accent-deep:#e8c963;--shadow:0 10px 30px rgba(0,0,0,.45);--shadow-hover:0 18px 46px rgba(0,0,0,.6)}
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--text);background:var(--bg);line-height:1.85;font-size:16px;overflow-x:hidden;position:relative;transition:background .4s var(--ease),color .4s var(--ease)}
body::before{content:"";position:fixed;inset:0;pointer-events:none;z-index:0;background:
radial-gradient(60vw 60vw at 12% -10%,rgba(201,162,39,.10),transparent 60%),
radial-gradient(50vw 50vw at 100% 0%,rgba(47,65,86,.14),transparent 62%),
radial-gradient(70vw 60vw at 50% 120%,rgba(201,162,39,.07),transparent 60%)}
a{color:var(--text);text-decoration:none;transition:color .28s var(--ease),opacity .28s var(--ease)}
a:hover{color:var(--accent)}
img,svg{max-width:100%;display:block}
ul{list-style:none}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px;position:relative;z-index:1}
header{position:sticky;top:0;z-index:100;background:rgba(27,42,65,.78);-webkit-backdrop-filter:saturate(180%) blur(16px);backdrop-filter:saturate(180%) blur(16px);color:#fff;border-bottom:1px solid rgba(255,255,255,.08);box-shadow:0 6px 24px rgba(0,0,0,.18);transition:background .4s var(--ease)}
@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){header{background:#1b2a41}}
.nav{display:flex;align-items:center;justify-content:space-between;height:var(--nav-h);gap:16px}
.brand{font-size:20px;font-weight:800;color:#fff;letter-spacing:.5px;white-space:nowrap}
.brand span{color:var(--accent)}
.nav ul{display:flex;gap:6px;flex-wrap:wrap;align-items:center}
.nav a{color:#e8e2d6;font-size:14.5px;padding:8px 12px;border-radius:var(--radius-pill);position:relative;display:inline-block}
.nav a::after{content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;border-radius:2px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .3s var(--ease)}
.nav a:hover{color:var(--accent);background:rgba(255,255,255,.06)}
.nav a:hover::after{transform:scaleX(1)}
.hero{position:relative;overflow:hidden;padding:88px 0 96px;color:#fff;background:linear-gradient(135deg,#1b2a41 0%,#2f4156 48%,#3c5372 100%);border-bottom:none}
.hero::before{content:"";position:absolute;inset:-20% -10%;background:
radial-gradient(38vw 38vw at 18% 12%,rgba(201,162,39,.30),transparent 62%),
radial-gradient(34vw 34vw at 88% 24%,rgba(120,170,220,.24),transparent 64%),
radial-gradient(46vw 40vw at 60% 118%,rgba(201,162,39,.18),transparent 60%);
animation:heroFloat 16s ease-in-out infinite alternate;pointer-events:none}
@keyframes heroFloat{0%{transform:translate3d(0,0,0) scale(1)}100%{transform:translate3d(-2%,2%,0) scale(1.08)}}
.hero .wrap{position:relative;z-index:2}
.hero h1{font-size:clamp(24px,4.4vw,40px);line-height:1.35;margin-bottom:18px;letter-spacing:.5px;text-shadow:0 6px 26px rgba(0,0,0,.28);animation:riseIn .9s var(--ease) both}
.hero p{font-size:clamp(15px,1.6vw,17.5px);color:#d7d2c7;max-width:780px;animation:riseIn .9s .12s var(--ease) both}
.hero .btn{animation:riseIn .9s .24s var(--ease) both}
@keyframes riseIn{from{opacity:0;transform:translateY(26px)}to{opacity:1;transform:translateY(0)}}
.btn{display:inline-block;margin-top:26px;padding:13px 32px;background:linear-gradient(135deg,var(--accent),#e0b83a);color:#1b2a41;border-radius:var(--radius-pill);font-weight:800;letter-spacing:.5px;box-shadow:0 10px 26px rgba(201,162,39,.34);position:relative;overflow:hidden;transition:transform .3s var(--ease),box-shadow .3s var(--ease),filter .3s var(--ease)}
.btn::after{content:"";position:absolute;top:0;left:-120%;width:60%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.55),transparent);transform:skewX(-20deg);transition:left .6s var(--ease)}
.btn:hover{color:#1b2a41;transform:translateY(-3px);box-shadow:0 18px 40px rgba(201,162,39,.44);filter:brightness(1.05)}
.btn:hover::after{left:140%}
section{padding:64px 0;border-bottom:1px solid var(--border);position:relative;z-index:1}
section.wrap{animation:none}
h2{font-size:clamp(20px,2.6vw,27px);margin-bottom:22px;color:var(--text);border-left:6px solid var(--accent);padding-left:14px;line-height:1.4;letter-spacing:.4px}
h3{font-size:clamp(17px,2vw,20.5px);margin:26px 0 10px;color:var(--text);line-height:1.5}
h4{font-size:17px;margin:18px 0 8px;color:var(--text-soft);line-height:1.5}
p{margin-bottom:14px;color:var(--text-soft)}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:22px;margin-top:22px}
.card{background:var(--card-glass);-webkit-backdrop-filter:blur(14px) saturate(160%);backdrop-filter:blur(14px) saturate(160%);border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);position:relative;overflow:hidden;transition:transform .38s var(--ease),box-shadow .38s var(--ease),border-color .38s var(--ease)}
@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){.card{background:var(--card)}}
.card::before{content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;background:linear-gradient(135deg,rgba(201,162,39,.55),transparent 45%,rgba(120,170,220,.35));-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;opacity:0;transition:opacity .38s var(--ease);pointer-events:none}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:transparent}
.card:hover::before{opacity:1}
.card h4{color:var(--text)}
.card p:last-child{margin-bottom:0}
.tag{display:inline-block;background:var(--accent-soft);color:var(--accent-deep);font-size:13px;font-weight:700;padding:4px 12px;border-radius:var(--radius-pill);margin-bottom:10px;letter-spacing:.4px}
.case{background:var(--card-glass);-webkit-backdrop-filter:blur(14px) saturate(160%);backdrop-filter:blur(14px) saturate(160%);border:1px solid var(--border);border-left:4px solid var(--accent);padding:20px 22px;border-radius:var(--radius-sm);margin-bottom:18px;box-shadow:var(--shadow);transition:transform .38s var(--ease),box-shadow .38s var(--ease)}
@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){.case{background:var(--card)}}
.case:hover{transform:translateX(6px);box-shadow:var(--shadow-hover)}
.case h3{margin-top:0}
.faq-item{border-bottom:1px dashed var(--border);padding:16px 0;transition:padding-left .3s var(--ease)}
.faq-item h4{cursor:pointer;position:relative;padding-left:22px;color:var(--text);transition:color .28s var(--ease)}
.faq-item h4::before{content:"?";position:absolute;left:0;top:0;color:var(--accent);font-weight:800}
.faq-item h4:hover{color:var(--accent)}
.faq-item:hover{padding-left:8px}
footer{background:linear-gradient(160deg,#1b2a41,#16222f 70%);color:#c8c2b6;padding:48px 0 28px;font-size:14px;position:relative;z-index:1}
footer h4{color:#fff;margin-bottom:10px}
footer a{color:var(--accent)}
footer a:hover{color:#fff}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:26px}
.meta{font-size:13px;color:var(--text-mute);margin-top:6px}
.top{position:fixed;right:24px;bottom:24px;z-index:120;background:linear-gradient(135deg,var(--accent),#e0b83a);color:#1b2a41;width:46px;height:46px;border-radius:50%;text-align:center;line-height:46px;font-weight:800;box-shadow:0 8px 22px rgba(201,162,39,.4);transition:transform .3s var(--ease),box-shadow .3s var(--ease)}
.top:hover{transform:translateY(-4px) scale(1.06);box-shadow:0 14px 32px rgba(201,162,39,.55);color:#1b2a41}
dl dt{font-weight:700;margin-top:14px;color:var(--text)}
dl dd{color:var(--text-soft);margin-left:0}
section ul{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
section ul li a{display:inline-block;padding:8px 16px;border-radius:var(--radius-pill);border:1px solid var(--border);background:var(--card-glass);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);font-size:14.5px;transition:transform .3s var(--ease),border-color .3s var(--ease),color .3s var(--ease),box-shadow .3s var(--ease)}
section ul li a:hover{transform:translateY(-3px);border-color:var(--accent);color:var(--accent);box-shadow:0 10px 24px rgba(201,162,39,.2)}
article.card h3{margin-top:0}
article.card a{font-weight:700;color:var(--accent-deep)}
article.card a:hover{color:var(--accent)}
@media (prefers-reduced-motion:no-preference){
section{animation:fadeUp .8s var(--ease) both}
section:nth-of-type(2){animation-delay:.04s}
section:nth-of-type(3){animation-delay:.08s}
section:nth-of-type(4){animation-delay:.12s}
section:nth-of-type(5){animation-delay:.16s}
.grid>*{animation:fadeUp .7s var(--ease) both}
.grid>*:nth-child(2){animation-delay:.06s}
.grid>*:nth-child(3){animation-delay:.12s}
.grid>*:nth-child(4){animation-delay:.18s}
}
@keyframes fadeUp{from{opacity:0;transform:translateY(28px)}to{opacity:1;transform:translateY(0)}}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
@media (max-width:900px){
.nav{height:auto;flex-direction:column;align-items:flex-start;padding:12px 0;gap:10px}
.nav ul{gap:4px}
.nav a{padding:6px 10px;font-size:14px}
.hero{padding:64px 0 72px}
section{padding:48px 0}
}
@media (max-width:600px){
.wrap{padding:0 16px}
.brand{font-size:18px}
.nav ul{gap:2px}
.nav a{font-size:13px;padding:5px 8px}
.hero{padding:52px 0 60px}
.hero h1{font-size:23px}
.hero p{font-size:15px}
.btn{padding:11px 24px;font-size:15px}
section{padding:40px 0}
h2{font-size:20px;padding-left:12px;border-left-width:5px}
h3{font-size:17px}
.card,.case{padding:18px;border-radius:14px}
.grid{gap:16px;grid-template-columns:1fr}
.top{right:16px;bottom:16px;width:42px;height:42px;line-height:42px}
footer{padding:36px 0 22px}
}
@media print{header,.top,.hero::before{display:none}body{background:#fff;color:#000}}