:root{
--bg:#f5f7fa;
--bg-alt:#ffffff;
--bg-card:#ffffff;
--bg-input:#ffffff;
--fg:#1f2d3d;
--muted:#6b7a8d;
--gray-500:#6b7a8d;
--gray-200:#e7ebf0;
--accent:#0052D9;
--accent-light:#2B7AF6;
--accent-dark:#003DA8;
--accent-2:#FF6A00;
--primary:#0052D9;
--primary-solid:#0052D9;
--primary-hover:#003DA8;
--primary-light:#e8f0ff;
--success:#00a870;
--danger:#e34d59;
--warning:#e37318;
--border:#e5e8ef;
--border-color:#e5e8ef;
--code:#f1f5f9;
--shadow-light:rgba(255,255,255,0);
--shadow-dark:#e6e9f0;
--shadow-sm:0 1px 3px rgba(16,24,40,0.05);
--shadow:0 2px 8px rgba(16,24,40,0.06);
--shadow-md:0 4px 16px rgba(16,24,40,0.08);
--shadow-lg:0 8px 24px rgba(16,24,40,0.10);
--radius:10px;
--radius-sm:6px;
--radius-lg:12px;
--radius-xl:16px;
--transition:0.2s ease;
--gradient-accent:linear-gradient(135deg,#0052D9 0%,#2B7AF6 100%);
--header-h:64px;
}

*{margin:0;padding:0;box-sizing:border-box}

body{
background:var(--bg);
color:var(--fg);
font-family:"PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI","Hiragino Sans GB","Noto Sans SC",sans-serif;
line-height:1.6;
-webkit-font-smoothing:antialiased;
min-height:100vh;
scroll-behavior:smooth;
font-size:14px;
}

a{color:var(--accent);text-decoration:none;transition:color var(--transition)}
a:hover{color:var(--accent-dark)}

::selection{background:rgba(0,82,217,0.15)}

::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:#d2d8e2;border-radius:4px}
::-webkit-scrollbar-thumb:hover{background:#b6bfce}

.app{min-height:100vh;display:flex;flex-direction:column}

.header{
background:#ffffff;
border-bottom:1px solid var(--border);
box-shadow:0 1px 2px rgba(16,24,40,0.04);
position:sticky;top:0;z-index:100;
}
.header-inner{
max-width:1200px;margin:0 auto;
padding:0 24px;height:var(--header-h);
display:flex;align-items:center;justify-content:space-between;
}
.logo{
font-size:1.35rem;font-weight:800;
color:var(--accent);
letter-spacing:-0.5px;
}
.logo:hover{color:var(--accent-dark)}

.nav{display:flex;gap:4px;align-items:center}
.nav a{
padding:8px 14px;border-radius:var(--radius-sm);
background:transparent;
color:var(--muted);font-weight:600;font-size:0.92rem;
transition:all var(--transition);
}
.nav a:hover{
color:var(--accent);
background:var(--primary-light);
}
.nav a:active{background:rgba(0,82,217,0.12)}

.main{flex:1;max-width:1200px;width:100%;margin:0 auto;padding:40px 24px}

.footer{
background:#0a1628;
padding:32px;text-align:center;
border-top:1px solid rgba(255,255,255,0.06);
}
.footer-inner{max-width:1200px;margin:0 auto;color:rgba(255,255,255,0.6);font-size:0.88rem;line-height:1.8}
.footer-inner a{color:rgba(255,255,255,0.75)}
.footer-inner a:hover{color:#fff}

.announcement-bar{
background:var(--accent);color:#fff;
padding:12px 24px;text-align:center;font-size:0.9rem;
}
.announcement-inner{max-width:1200px;margin:0 auto}

.btn-primary{
display:inline-flex;align-items:center;justify-content:center;
padding:14px 32px;border:1px solid var(--accent);border-radius:var(--radius);
background:var(--accent);color:#fff;
font-size:0.98rem;font-weight:700;cursor:pointer;
box-shadow:var(--shadow-sm);
transition:all var(--transition);
letter-spacing:0.3px;
}
.btn-primary:hover{
background:var(--accent-dark);border-color:var(--accent-dark);
box-shadow:var(--shadow-md);transform:translateY(-1px);
}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-sm)}
.btn-primary:disabled{opacity:0.5;cursor:not-allowed;transform:none}

.btn-secondary{
display:inline-flex;align-items:center;justify-content:center;
padding:14px 32px;border:1px solid var(--accent);border-radius:var(--radius);
background:#fff;
color:var(--accent);font-size:0.98rem;font-weight:700;cursor:pointer;
transition:all var(--transition);
letter-spacing:0.3px;
}
.btn-secondary:hover{
background:var(--primary-light);
box-shadow:var(--shadow-sm);
}
.btn-secondary:active{background:rgba(0,82,217,0.12)}

.btn-sm{padding:8px 18px;font-size:0.85rem;border-radius:var(--radius-sm)}

.msg{
padding:14px 20px;border-radius:var(--radius);margin-bottom:20px;
font-size:0.92rem;font-weight:500;
border:1px solid transparent;
}
.msg-error{background:#fef0f0;color:var(--danger);border-color:#fbc4c4}
.msg-success{background:#e8f7f0;color:#067647;border-color:#b6e3cf}
.msg-warn{background:#fff5e9;color:#b45309;border-color:#fcd9a8}

.hero{
display:flex;align-items:center;justify-content:center;
min-height:70vh;text-align:center;padding:60px 24px;
}
.hero-title{
font-size:3.2rem;font-weight:800;color:var(--fg);margin-bottom:16px;letter-spacing:-1px;
}
.hero-title span{
color:var(--accent);
}
.hero-desc{font-size:1.15rem;color:var(--muted);max-width:600px;margin:0 auto 40px;line-height:1.8}
.hero-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

.features{padding:80px 0}
.section-title{text-align:center;margin-bottom:56px}
.section-title h2{font-size:2rem;font-weight:800;color:var(--fg);margin-bottom:12px}
.section-title p{color:var(--muted);font-size:1.05rem}
.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:24px}
.feature-card{
background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);padding:36px 28px;text-align:center;
box-shadow:var(--shadow);
transition:all var(--transition);
}
.feature-card:hover{
transform:translateY(-6px);
box-shadow:var(--shadow-lg);border-color:transparent;
}
.feature-icon{font-size:2.8rem;margin-bottom:18px}
.feature-card h3{font-size:1.2rem;margin-bottom:10px;color:var(--fg)}
.feature-card p{color:var(--muted);font-size:0.92rem;line-height:1.7}

.how-it-works{padding:80px 0}
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:24px}
.step{
text-align:center;padding:32px 20px;background:#fff;
border:1px solid var(--border);border-radius:var(--radius-lg);
box-shadow:var(--shadow);
transition:all var(--transition);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.step-num{
width:52px;height:52px;border-radius:50%;
background:var(--primary-light);
color:var(--accent);
display:inline-flex;align-items:center;justify-content:center;
font-size:1.4rem;font-weight:800;margin-bottom:16px;
}
.step h3{font-size:1.1rem;margin-bottom:8px}
.step p{color:var(--muted);font-size:0.88rem}

.auth-container{display:flex;align-items:center;justify-content:center;min-height:70vh;padding:40px 24px}
.auth-card{
background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);padding:44px;
max-width:440px;width:100%;
box-shadow:var(--shadow-lg);
}
.auth-tabs{
display:flex;margin-bottom:32px;border-radius:var(--radius);
overflow:hidden;
background:#eef1f6;
padding:4px;
}
.auth-tab{
flex:1;padding:14px;text-align:center;
color:var(--muted);font-weight:600;font-size:1rem;
transition:all var(--transition);border-radius:var(--radius-sm);
}
.auth-tab.active{
color:#fff;
background:var(--accent);
}
.auth-form .form-group{margin-bottom:20px}
.auth-form label{display:block;margin-bottom:8px;font-weight:600;font-size:0.9rem}
.auth-form input[type="text"],.auth-form input[type="email"],.auth-form input[type="password"]{
width:100%;padding:14px 18px;border:1px solid var(--border);border-radius:var(--radius-sm);
background:#fff;
font-size:1rem;outline:none;color:var(--fg);transition:all var(--transition);
}
.auth-form input:focus{
border-color:var(--accent);
box-shadow:0 0 0 3px rgba(0,82,217,0.12);
}
.captcha-row,.code-row{display:flex;gap:12px;align-items:center}
.captcha-row input,.code-row input{flex:1}
.captcha-img{height:48px;border-radius:var(--radius-sm);cursor:pointer;flex-shrink:0}
.btn-send-code{
padding:12px 18px;border:1px solid var(--border);border-radius:var(--radius-sm);
background:#fff;
color:var(--accent);font-size:0.85rem;font-weight:600;
cursor:pointer;white-space:nowrap;flex-shrink:0;
transition:all var(--transition);
}
.btn-send-code:hover{background:var(--primary-light);border-color:var(--accent)}
.btn-send-code:disabled{opacity:0.6;cursor:not-allowed}
.auth-switch{text-align:center;margin-top:24px;color:var(--muted);font-size:0.9rem}

.page-header{text-align:center;margin-bottom:40px}
.page-header h1{font-size:2rem;font-weight:800;margin-bottom:10px}
.page-header p{color:var(--muted);font-size:1.05rem}
.user-points-bar{
display:flex;align-items:center;justify-content:space-between;padding:18px 28px;
border-radius:var(--radius);margin-bottom:32px;background:#fff;
border:1px solid var(--border);box-shadow:var(--shadow-sm);
}
.product-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}
.product-card{
background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);padding:32px 28px;text-align:center;
box-shadow:var(--shadow);
transition:all var(--transition);display:flex;flex-direction:column;
}
.product-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.product-name{font-size:1.3rem;font-weight:700;margin-bottom:10px}
.product-price{font-size:2.4rem;font-weight:900;color:var(--accent);margin-bottom:24px}
.product-features{list-style:none;text-align:left;margin-bottom:28px;flex:1}
.product-features li{padding:10px 0;border-bottom:1px solid var(--border);font-size:0.92rem}
.empty-state{text-align:center;padding:80px 20px;color:var(--muted);grid-column:1/-1}

.panel-grid{display:grid;grid-template-columns:280px 1fr;gap:24px}
.panel-sidebar{position:sticky;top:80px;align-self:start}
.user-card{
background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);padding:32px;text-align:center;
box-shadow:var(--shadow);margin-bottom:16px;
}
.user-avatar{
width:72px;height:72px;border-radius:50%;
background:var(--primary-light);
color:var(--accent);display:inline-flex;align-items:center;justify-content:center;
font-size:1.6rem;font-weight:800;margin-bottom:14px;
}
.user-name{font-size:1.15rem;font-weight:700;margin-bottom:6px}
.user-email{color:var(--muted);font-size:0.85rem;margin-bottom:10px}
.user-points{font-size:1.1rem;font-weight:700;color:var(--accent)}

.panel-nav{display:flex;flex-direction:column;gap:8px}
.panel-nav-item{
display:block;padding:14px 22px;border-radius:var(--radius-sm);
background:#fff;border:1px solid var(--border);
color:var(--muted);font-weight:600;font-size:0.92rem;
transition:all var(--transition);
}
.panel-nav-item:hover{
color:var(--accent);border-color:var(--accent);
background:var(--primary-light);
}
.panel-nav-item.active{
color:#fff;border-color:var(--accent);background:var(--accent);
}

.section-card{
background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);padding:32px;margin-bottom:24px;
box-shadow:var(--shadow);
}
.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}
.form-group{margin-bottom:18px}
.form-group label{display:block;margin-bottom:8px;font-weight:600;font-size:0.9rem}
.form-group input,.form-group select,.form-group textarea{
width:100%;padding:12px 16px;border:1px solid var(--border);border-radius:var(--radius-sm);
background:#fff;
font-size:0.95rem;outline:none;color:var(--fg);
transition:all var(--transition);
}
.form-group textarea{resize:vertical;min-height:100px}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{
border-color:var(--accent);
box-shadow:0 0 0 3px rgba(0,82,217,0.12);
}

.info-row{
display:flex;justify-content:space-between;align-items:center;
padding:12px 0;border-bottom:1px solid var(--border);font-size:0.9rem;
}
.info-row span:first-child{color:var(--muted)}

.points-packages{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:18px}
.pkg-card{
text-align:center;padding:24px 16px;border-radius:var(--radius);
background:#fff;border:1px solid var(--border);
box-shadow:var(--shadow);
transition:all var(--transition);
}
.pkg-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--accent)}
.pkg-points{font-size:1.4rem;font-weight:800;color:var(--accent);margin-bottom:8px}
.pkg-price{font-size:1.05rem;color:var(--fg);font-weight:600;margin-bottom:16px}

.vhost-list{display:flex;flex-direction:column;gap:18px}
.vhost-card{
padding:24px;border-radius:var(--radius);
background:#fff;border:1px solid var(--border);
box-shadow:var(--shadow);
}
.vhost-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}
.vhost-name{font-weight:700;font-size:1.05rem}
.copyable{
cursor:pointer;font-family:monospace;transition:all 0.2s;
padding:4px 10px;border-radius:6px;
background:var(--code);
}
.copyable:hover{background:#e3e9f2}
.copy-btn{display:inline-flex;align-items:center;justify-content:center;width:26px;height:26px;background:#fff;border:1px solid var(--border);border-radius:6px;cursor:pointer;padding:4px;opacity:.55;transition:all .2s;vertical-align:middle;margin-left:4px;flex-shrink:0}
.copy-btn:hover{opacity:1;border-color:var(--accent);background:var(--primary-light)}
.copy-btn svg{width:14px;height:14px;stroke:var(--fg);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

.badge{display:inline-block;padding:4px 12px;border-radius:8px;font-size:0.78rem;font-weight:700}
.badge-green{background:rgba(0,168,112,0.12);color:#067647}
.badge-red{background:rgba(227,77,89,0.12);color:#c0392b}
.badge-blue{background:var(--primary-light);color:var(--accent-dark)}
.text-muted{color:var(--muted)}

.modal{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(10,22,40,0.55);z-index:9999;align-items:center;justify-content:center}
.modal.hidden{display:none !important}
.modal-content{
background:#fff;border-radius:var(--radius-lg);max-width:500px;width:90%;
max-height:80vh;overflow:auto;
box-shadow:var(--shadow-lg);border:1px solid var(--border);
}
.modal-header{display:flex;align-items:center;justify-content:space-between;padding:24px 28px;border-bottom:1px solid var(--border)}
.modal-header h3{margin:0;font-size:1.15rem;font-weight:700}
.modal-close{font-size:1.5rem;color:var(--muted);cursor:pointer;line-height:1;transition:color 0.2s}
.modal-close:hover{color:var(--danger)}
.modal-body{padding:28px;line-height:1.8;color:var(--fg);font-size:0.95rem}
.modal-footer{padding:18px 28px;text-align:center;border-top:1px solid var(--border)}

.pay-type-label{
display:inline-flex;align-items:center;gap:8px;padding:10px 18px;margin-right:10px;
background:#fff;border:1px solid var(--border);border-radius:var(--radius);cursor:pointer;
transition:all 0.2s;font-size:0.92rem;color:var(--fg);
}
.pay-type-label:hover{border-color:var(--accent);background:var(--primary-light)}
.pay-type-label input[type="radio"]{accent-color:var(--accent);width:16px;height:16px;cursor:pointer}

@media (max-width:768px){
.panel-grid{grid-template-columns:1fr}
.panel-sidebar{position:static;top:auto}
.panel-nav{flex-direction:row;flex-wrap:wrap}
.hero-title{font-size:2.2rem}
.hero{min-height:50vh;padding:40px 16px}
.feature-grid{grid-template-columns:1fr 1fr}
.steps{grid-template-columns:1fr 1fr}
.product-grid{grid-template-columns:1fr}
.points-packages{grid-template-columns:1fr 1fr}
.nav a{padding:8px 12px;font-size:0.85rem}
.main{padding:24px 16px}
.auth-card{padding:28px}
}
@media (max-width:480px){
.feature-grid{grid-template-columns:1fr}
.steps{grid-template-columns:1fr}
.points-packages{grid-template-columns:1fr}
.hero-title{font-size:1.8rem}
.hero-desc{font-size:1rem}
.auth-card{padding:24px}
.captcha-row{flex-direction:column}
.captcha-img{width:100%;height:auto}
}