:root{--color-text:#1f2329;--color-text-secondary:#5e6573;--color-text-muted:#8f959e;--color-border:#e5e7ec;--color-bg:#fff;--color-bg-soft:#f7f9fc;--color-primary:#3370ff;--color-primary-dark:#245bdb;--color-primary-soft:#eaf1ff;--color-success:#00b96b;--color-warning:#ffb400;--color-cyan:#00d6b9;--gradient-primary:linear-gradient(135deg,#00d6b9,#3370ff);--gradient-download:linear-gradient(135deg,#6dd9ff,#3370ff);--shadow-sm:0 1px 2px rgba(15,26,48,.06);--shadow-md:0 4px 12px rgba(15,26,48,.08);--shadow-lg:0 10px 40px rgba(15,26,48,.12);--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--radius-pill:999px;--font-sans:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Helvetica,Arial,sans-serif;--header-height:68px;--max-width:1180px}*,:after,:before{box-sizing:border-box}body,html{margin:0;padding:0}body{font-family:var(--font-sans);font-size:15px;line-height:1.5;color:var(--color-text);background:var(--color-bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{text-decoration:none}a,button{color:inherit;cursor:pointer}button{font-family:inherit;border:none;background:none}img,svg{display:block;max-width:100%}input{font-family:inherit;font-size:inherit;color:inherit}ol,ul{margin:0;padding:0;list-style:none}.larky-sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);clip-path:inset(50%);white-space:nowrap;border:0}.container{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 24px}.site-header{position:sticky;top:0;z-index:100;background:#fff;border-bottom:1px solid transparent;height:var(--header-height);display:flex;align-items:center}.site-header.has-shadow{border-bottom-color:var(--color-border)}.site-header .container{display:flex;align-items:center;justify-content:space-between;gap:24px;max-width:1440px;padding:0 40px}.site-header .brand{display:flex;align-items:center;gap:8px}.site-header .brand img{height:26px;width:auto}.main-nav{display:flex;align-items:center;gap:4px;flex:1;justify-content:flex-start;padding-left:12px}.main-nav .nav-item{position:relative}.main-nav .nav-link{display:inline-flex;align-items:center;gap:4px;padding:10px 14px;font-size:14px;font-weight:500;color:var(--color-text);border-radius:var(--radius-sm);transition:background-color .15s ease,color .15s ease}.main-nav .nav-link:hover{background:var(--color-bg-soft);color:var(--color-primary)}.main-nav .nav-link svg{transition:transform .2s ease}.main-nav .nav-link:hover svg{transform:rotate(180deg)}.header-actions{display:flex;align-items:center;gap:14px}.header-actions .text-link{font-size:14px;font-weight:500;color:var(--color-text);padding:8px 4px}.header-actions .text-separator{color:#dee0e3;margin:0 8px;font-size:12px}.header-actions .text-link:hover{color:var(--color-primary)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 22px;border-radius:var(--radius-pill);font-size:14px;font-weight:600;line-height:1;transition:transform .15s ease,box-shadow .15s ease,background-color .15s ease,color .15s ease,border-color .15s ease;white-space:nowrap}.btn:active{transform:translateY(1px)}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover{background:var(--color-primary-dark);box-shadow:0 6px 18px #3370ff59}.btn-outline{border:1.5px solid var(--color-primary);color:var(--color-primary);background:#fff}.btn-outline:hover{background:var(--color-primary-soft)}.btn-lg{padding:14px 32px;font-size:15px}.btn-block{display:flex;width:100%}.floating-actions{position:fixed;right:14px;bottom:30px;display:flex;flex-direction:column;gap:10px;z-index:90}.floating-actions .fa-item{width:56px;height:64px;border-radius:12px;background:#fff;border:1px solid var(--color-border);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;font-size:11px;color:var(--color-text-secondary);box-shadow:var(--shadow-md);transition:transform .15s ease,box-shadow .15s ease;cursor:pointer;text-align:center;line-height:1.2}.floating-actions .fa-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}.floating-actions .fa-icon{width:24px;height:24px;border-radius:50%;background:var(--color-primary-soft);display:flex;align-items:center;justify-content:center;position:relative}.floating-actions .fa-icon img{width:16px;height:16px}.floating-actions .fa-badge{position:absolute;top:-4px;right:-4px;width:16px;height:16px;background:#ff4d4f;color:#fff;font-size:10px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:600}@media(max-width:960px){.header-actions .text-link[data-collapse=true],.main-nav{display:none}}@media(max-width:640px){.header-actions .btn-outline{display:none}}