:root{--primary-color:#0d9488;--primary-dark:#0f766e;--primary-light:#ccfbf1;--secondary-color:#0284c7;--secondary-light:#38bdf8;--accent-color:#06b6d4;--gradient-start:#0891b2;--gradient-mid:#0d9488;--gradient-end:#059669;--text-dark:#1e293b;--text-gray:#64748b;--text-light:#94a3b8;--bg-light:#f8fafc;--bg-white:#fff;--border-color:#e2e8f0;--shadow-sm:0 1px 2px rgba(15,23,42,.06);--shadow-md:0 10px 30px rgba(15,23,42,.08);--shadow-lg:0 18px 50px rgba(15,23,42,.12);--shadow-xl:0 28px 70px rgba(15,23,42,.16);--radius-sm:4px;--radius-md:8px;--radius-lg:12px;--radius-xl:16px;--space-xs:4px;--space-sm:8px;--space-md:16px;--space-lg:24px;--space-xl:32px;--space-2xl:48px;--space-3xl:64px;--space-4xl:96px;--font-sans:"PingFang SC","Microsoft YaHei","Helvetica 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var(--primary-color);background:transparent}.btn-outline:hover{color:#fff;background:var(--primary-color)}.btn-white{color:var(--primary-color);background:#fff}.btn-white:hover{background:var(--bg-light);transform:translateY(-2px)}.btn-primary:active{transform:translateY(0)}.btn-lg{padding:16px 36px;font-size:16px}.btn-sm{padding:8px 16px;font-size:12px}.btn-block{width:100%}.fade-in-up,[data-reveal]{opacity:0;transform:translateY(30px);transition:opacity .7s ease,transform .7s ease}.fade-in-up{animation:fadeInUp .8s ease forwards}.delay-1{animation-delay:.12s}.delay-2{animation-delay:.24s}.delay-3{animation-delay:.36s}[data-reveal].animated,[data-reveal].is-visible{opacity:1;transform:translateY(0)}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@keyframes 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span{color:rgba(0,0,0,.55);font-size:12px}.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-top:24px;border-top:1px solid hsla(0,0%,100%,.12)}.copyright{color:hsla(0,0%,100%,.56)}.footer-nav{display:flex;flex-wrap:wrap;gap:18px}.footer-nav a{color:hsla(0,0%,100%,.58);font-size:14px}@media (max-width:1100px){.footer-content{grid-template-columns:repeat(2,1fr)}}@media (max-width:900px){.footer-content{grid-template-columns:1fr}.footer-bottom{align-items:flex-start;flex-direction:column}}.header{position:fixed;top:0;right:0;left:0;z-index:1000;height:70px;border-bottom:1px solid rgba(13,148,136,.1);background:hsla(0,0%,100%,.96);box-shadow:0 1px 2px rgba(0,0,0,.05);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);transition:box-shadow var(--transition-normal)}.header.scrolled{box-shadow:var(--shadow-md)}.header 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a:hover{color:var(--primary-color);background:rgba(13,148,136,.08)}.search-container{position:relative;display:flex;align-items:center}.search-input{position:absolute;right:100%;width:0;padding:10px 16px;margin-right:8px;color:var(--text-dark);font-size:14px;opacity:0;pointer-events:none;border:1px solid var(--border-color);border-radius:20px;outline:none;background:#fff;box-shadow:var(--shadow-sm);transition:all var(--transition-normal)}.search-input.active{width:200px;right:calc(100% + 8px);opacity:1;pointer-events:auto}.search-btn{display:flex;align-items:center;justify-content:center;width:40px;height:40px;color:var(--text-gray);border:none;border-radius:50%;background:var(--bg-light);cursor:pointer;z-index:1;transition:all var(--transition-fast)}.search-btn.active,.search-btn:hover{color:#fff;background:var(--primary-color)}@media (max-width:900px){.nav{position:absolute;top:70px;right:16px;left:16px;display:none;padding:18px;border:1px solid rgba(13,148,136,.12);border-radius:18px;background:#fff;box-shadow:var(--shadow-lg)}.nav--open{display:block}.nav .nav-list{flex-direction:column;align-items:stretch}.nav .nav-list>li>a{justify-content:center}.submenu{position:static;display:none;min-width:0;margin-top:8px;opacity:1;visibility:visible;box-shadow:none;transform:none}.has-submenu:focus-within .submenu,.has-submenu:hover .submenu{display:block;transform:none}.menu-toggle{display:block}}@media (max-width:720px){.header-actions{gap:8px}.search-input.active{width:140px}}.lang-switch{display:inline-flex;min-width:64px;min-height:42px;align-items:center;justify-content:center;padding:0 18px;color:var(--primary-color);font-size:14px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;border:1px solid rgba(13,148,136,.22);border-radius:999px;background:#fff}.lang-switch:hover{color:#fff;border-color:var(--primary-color);background:var(--primary-color)}