/* ============== Token盾 前台样式 ============== */
*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
    font-family:-apple-system,BlinkMacSystemFont,'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;
    background:#0a0e1a;
    color:#e8ecf5;
    line-height:1.6;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
}
a{color:inherit;text-decoration:none;transition:color .2s}
ul{list-style:none;padding:0;margin:0}
img{max-width:100%}

.td-container{max-width:1200px;margin:0 auto;padding:0 24px}

/* ============== 顶部导航 ============== */
.td-header{
    position:fixed;top:0;left:0;right:0;z-index:100;
    background:rgba(10,14,26,.85);
    backdrop-filter:blur(12px);
    -webkit-backdrop-filter:blur(12px);
    border-bottom:1px solid rgba(255,255,255,.06);
}
.td-header .td-container{
    display:flex;align-items:center;justify-content:space-between;height:68px;
}
.td-logo{
    display:flex;align-items:center;gap:8px;
    font-size:22px;font-weight:700;color:#fff;
}
.td-logo i{
    color:#5b8bff;font-size:24px;
    text-shadow:0 0 16px rgba(91,139,255,.6);
}
.td-logo em{
    font-style:normal;
    background:linear-gradient(135deg,#5b8bff,#9b6bff);
    -webkit-background-clip:text;background-clip:text;
    -webkit-text-fill-color:transparent;
}
.td-nav{display:flex;gap:36px}
.td-nav a{
    color:#a8b1c5;font-size:15px;font-weight:500;
    position:relative;padding:6px 0;
}
.td-nav a:hover,.td-nav a.active{color:#fff}
.td-nav a.active::after{
    content:'';position:absolute;left:0;right:0;bottom:-2px;height:2px;
    background:linear-gradient(90deg,#5b8bff,#9b6bff);
    border-radius:2px;
}
.td-actions{display:flex;gap:12px}

/* ============== 按钮 ============== */
.td-btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:10px 22px;border-radius:8px;
    font-size:14px;font-weight:600;cursor:pointer;
    border:1px solid transparent;
    transition:all .2s;
    text-decoration:none;
    position:relative;
    z-index:2;
}
.td-btn-primary{
    background:linear-gradient(135deg,#5b8bff 0%,#9b6bff 100%);
    color:#fff;
    box-shadow:0 4px 16px rgba(91,139,255,.35);
}
.td-btn-primary:hover{
    transform:translateY(-1px);
    box-shadow:0 8px 24px rgba(91,139,255,.5);
    color:#fff;
}
.td-btn-ghost{
    background:rgba(255,255,255,.04);
    color:#e8ecf5;
    border:1px solid rgba(255,255,255,.12);
}
.td-btn-ghost:hover{
    background:rgba(255,255,255,.08);
    border-color:rgba(91,139,255,.5);
    color:#fff;
}
.td-btn-lg{padding:14px 32px;font-size:16px}
.td-btn-block{display:flex;width:100%}

/* ============== Hero ============== */
.td-hero{
    position:relative;
    padding:140px 0 100px;
    overflow:hidden;
}
.td-hero-bg{position:absolute;inset:0;z-index:0}
.td-hero-grid{
    position:absolute;inset:0;
    background-image:
        linear-gradient(rgba(91,139,255,.06) 1px,transparent 1px),
        linear-gradient(90deg,rgba(91,139,255,.06) 1px,transparent 1px);
    background-size:48px 48px;
    mask-image:radial-gradient(ellipse at center,#000 30%,transparent 75%);
    -webkit-mask-image:radial-gradient(ellipse at center,#000 30%,transparent 75%);
}
.td-hero-glow{
    position:absolute;border-radius:50%;
    filter:blur(120px);opacity:.5;pointer-events:none;
}
.td-hero-glow-1{
    width:500px;height:500px;
    background:#5b8bff;
    top:-100px;left:-100px;
}
.td-hero-glow-2{
    width:600px;height:600px;
    background:#9b6bff;
    bottom:-200px;right:-150px;opacity:.4;
}
.td-hero-inner{
    position:relative;z-index:1;
    display:grid;grid-template-columns:1.2fr 1fr;gap:60px;align-items:center;
}
.td-hero-tag{
    display:inline-flex;align-items:center;gap:6px;
    padding:6px 14px;
    background:rgba(91,139,255,.1);
    border:1px solid rgba(91,139,255,.3);
    border-radius:99px;
    color:#9bb5ff;font-size:13px;font-weight:500;
    margin-bottom:24px;
}
.td-hero-title{
    font-size:56px;font-weight:800;line-height:1.15;
    margin:0 0 20px;
    background:linear-gradient(135deg,#fff 0%,#a8b9ff 100%);
    -webkit-background-clip:text;background-clip:text;
    -webkit-text-fill-color:transparent;
}
.td-hero-sub{
    font-size:18px;color:#a8b1c5;margin:0 0 36px;max-width:520px;
}
.td-hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:48px}
.td-hero-stats{display:flex;gap:48px}
.td-stat strong{
    display:block;font-size:30px;font-weight:700;color:#fff;
    background:linear-gradient(135deg,#5b8bff,#9b6bff);
    -webkit-background-clip:text;background-clip:text;
    -webkit-text-fill-color:transparent;
}
.td-stat span{color:#7d869c;font-size:14px}

/* Hero Visual - 旋转球体 */
.td-hero-visual{display:flex;justify-content:center;align-items:center}
.td-orb{
    position:relative;width:380px;height:380px;
    display:flex;align-items:center;justify-content:center;
}
.td-orb-inner{
    width:140px;height:140px;border-radius:50%;
    background:linear-gradient(135deg,#5b8bff,#9b6bff);
    display:flex;align-items:center;justify-content:center;
    color:#fff;font-size:60px;
    box-shadow:0 0 80px rgba(91,139,255,.6),inset 0 0 40px rgba(255,255,255,.2);
    z-index:2;
}
.td-orb-ring{
    position:absolute;border-radius:50%;
    border:1px solid rgba(91,139,255,.3);
}
.td-orb-ring-1{width:220px;height:220px;animation:tdSpin 10s linear infinite}
.td-orb-ring-2{width:300px;height:300px;animation:tdSpin 15s linear infinite reverse;border-color:rgba(155,107,255,.25)}
.td-orb-ring-3{width:380px;height:380px;animation:tdSpin 20s linear infinite;border-color:rgba(91,139,255,.15)}
.td-orb-ring::before{
    content:'';position:absolute;width:10px;height:10px;border-radius:50%;
    background:#5b8bff;top:-5px;left:50%;
    box-shadow:0 0 16px #5b8bff;
}
.td-orb-ring-2::before{background:#9b6bff;box-shadow:0 0 16px #9b6bff}
@keyframes tdSpin{from{transform:rotate(0)}to{transform:rotate(360deg)}}

/* ============== 通用区块 ============== */
.td-section{padding:100px 0;position:relative}
.td-section-alt{
    background:linear-gradient(180deg,#0a0e1a 0%,#0d1224 50%,#0a0e1a 100%);
}
.td-section-head{text-align:center;margin-bottom:60px}
.td-section-tag{
    display:inline-block;
    color:#5b8bff;font-size:13px;font-weight:700;letter-spacing:2px;
    margin-bottom:12px;
}
.td-section-head h2{
    font-size:42px;font-weight:800;margin:0 0 12px;color:#fff;
}
.td-section-head p{color:#a8b1c5;font-size:17px;margin:0}

.td-grid{display:grid;gap:24px}
.td-grid-3{grid-template-columns:repeat(3,1fr)}
.td-grid-4{grid-template-columns:repeat(4,1fr)}

/* ============== 卡片通用 ============== */
.td-card{
    position:relative;
    background:linear-gradient(180deg,rgba(255,255,255,.04) 0%,rgba(255,255,255,.01) 100%);
    border:1px solid rgba(255,255,255,.08);
    border-radius:16px;
    padding:36px 28px;
    transition:all .3s;
}
.td-card:hover{
    transform:translateY(-4px);
    border-color:rgba(91,139,255,.4);
    box-shadow:0 20px 40px rgba(0,0,0,.3),0 0 0 1px rgba(91,139,255,.2);
}
.td-card-tag{
    position:absolute;top:18px;right:18px;
    padding:4px 12px;border-radius:99px;
    font-size:12px;font-weight:600;
}
.td-card-tag-danger{background:rgba(255,99,99,.15);color:#ff7878;border:1px solid rgba(255,99,99,.3)}
.td-card-tag-success{background:rgba(67,217,162,.15);color:#43d9a2;border:1px solid rgba(67,217,162,.3)}
.td-card-tag-warning{background:rgba(255,193,73,.15);color:#ffc149;border:1px solid rgba(255,193,73,.3)}
.td-card-tag-info{background:rgba(91,139,255,.15);color:#7da6ff;border:1px solid rgba(91,139,255,.3)}
.td-card-tag-primary{background:rgba(91,139,255,.15);color:#7da6ff;border:1px solid rgba(91,139,255,.3)}

/* ============== 产品卡片 ============== */
.td-product-icon{
    width:60px;height:60px;border-radius:14px;
    background:linear-gradient(135deg,rgba(91,139,255,.2),rgba(155,107,255,.2));
    border:1px solid rgba(91,139,255,.3);
    display:flex;align-items:center;justify-content:center;
    color:#7da6ff;font-size:28px;
    margin-bottom:20px;
    overflow:hidden;
}
.td-product-icon img{width:38px;height:38px;object-fit:contain}
.td-product h3{font-size:22px;font-weight:700;margin:0 0 8px;color:#fff}
.td-product-sub{color:#a8b1c5;font-size:14px;margin:0 0 22px}
.td-product-features{margin:0 0 26px}
.td-product-features li{
    color:#cbd2e1;font-size:14px;padding:6px 0;
    display:flex;align-items:center;gap:8px;
}
.td-product-features .fa-check{color:#43d9a2;font-size:13px}
.td-product-price{margin-bottom:22px;display:flex;align-items:baseline;gap:6px}
.td-product-price .td-price-num{
    font-size:30px;font-weight:800;
    background:linear-gradient(135deg,#5b8bff,#9b6bff);
    -webkit-background-clip:text;background-clip:text;
    -webkit-text-fill-color:transparent;
}
.td-product-price .td-price-unit{color:#7d869c;font-size:13px}

/* ============== 特色服务 ============== */
.td-feature{
    text-align:center;padding:32px 20px;
    background:linear-gradient(180deg,rgba(255,255,255,.03),transparent);
    border:1px solid rgba(255,255,255,.06);
    border-radius:14px;
    transition:all .3s;
}
.td-feature:hover{
    border-color:rgba(91,139,255,.3);
    transform:translateY(-3px);
}
.td-feature-icon{
    width:64px;height:64px;border-radius:50%;
    background:linear-gradient(135deg,#5b8bff,#9b6bff);
    display:flex;align-items:center;justify-content:center;
    color:#fff;font-size:26px;margin:0 auto 18px;
    box-shadow:0 8px 24px rgba(91,139,255,.35);
    overflow:hidden;
}
.td-feature-icon img{width:36px;height:36px;object-fit:contain;filter:brightness(0) invert(1)}
.td-feature h4{font-size:17px;font-weight:700;margin:0 0 8px;color:#fff}
.td-feature p{color:#a8b1c5;font-size:14px;margin:0}

/* ============== 套餐 ============== */
.td-package{display:flex;flex-direction:column;text-align:center}
.td-package-hot{
    background:linear-gradient(180deg,rgba(91,139,255,.12) 0%,rgba(155,107,255,.06) 100%);
    border-color:rgba(91,139,255,.5);
    transform:scale(1.04);
    box-shadow:0 20px 60px rgba(91,139,255,.25);
}
.td-package-hot:hover{transform:scale(1.04) translateY(-4px)}
.td-package-name{font-size:22px;font-weight:700;margin:0 0 6px;color:#fff}
.td-package-desc{color:#a8b1c5;font-size:14px;margin:0 0 22px}
.td-package-price{
    margin:0 0 8px;display:flex;align-items:baseline;justify-content:center;gap:4px;
}
.td-package-price .td-price-symbol{font-size:22px;color:#a8b1c5}
.td-package-price .td-price-num{
    font-size:48px;font-weight:800;
    background:linear-gradient(135deg,#5b8bff,#9b6bff);
    -webkit-background-clip:text;background-clip:text;
    -webkit-text-fill-color:transparent;line-height:1;
}
.td-package-price .td-price-unit{color:#7d869c;font-size:14px}
.td-package-original{color:#7d869c;font-size:13px;margin-bottom:18px}
.td-package-original s{color:#7d869c}
.td-package-amount{
    margin:0 0 22px;padding:12px;
    background:rgba(91,139,255,.08);
    border:1px dashed rgba(91,139,255,.3);
    border-radius:8px;
    color:#9bb5ff;font-size:14px;font-weight:600;
}
.td-package-features{flex:1;margin:0 0 26px;text-align:left}
.td-package-features li{
    color:#cbd2e1;font-size:14px;padding:8px 0;
    display:flex;align-items:center;gap:10px;
    border-bottom:1px solid rgba(255,255,255,.04);
}
.td-package-features li:last-child{border-bottom:0}
.td-package-features .fa-check-circle{color:#43d9a2;font-size:15px}

/* ============== CTA ============== */
.td-cta{padding:80px 0}
.td-cta-inner{
    background:linear-gradient(135deg,rgba(91,139,255,.15) 0%,rgba(155,107,255,.15) 100%);
    border:1px solid rgba(91,139,255,.3);
    border-radius:24px;
    padding:60px 40px;text-align:center;
    position:relative;overflow:hidden;
}
.td-cta-inner::before{
    content:'';position:absolute;top:-50%;left:-50%;width:200%;height:200%;
    background:radial-gradient(circle,rgba(91,139,255,.15) 0%,transparent 60%);
    pointer-events:none;
}
.td-cta-inner h2{font-size:36px;font-weight:800;margin:0 0 12px;color:#fff;position:relative}
.td-cta-inner p{color:#cbd2e1;font-size:17px;margin:0 0 28px;position:relative}
.td-cta-inner .td-btn{position:relative}

/* ============== Footer ============== */
.td-footer{
    background:#06080f;
    border-top:1px solid rgba(255,255,255,.06);
    padding:60px 0 24px;
}
.td-footer-grid{
    display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;
    padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.06);
}
.td-footer-brand p{color:#7d869c;font-size:14px;margin:14px 0 0;max-width:300px}
.td-footer h5{color:#fff;font-size:15px;font-weight:700;margin:0 0 18px}
.td-footer ul li{margin-bottom:10px}
.td-footer ul a{color:#a8b1c5;font-size:14px}
.td-footer ul a:hover{color:#7da6ff}
.td-footer-bottom{
    display:flex;justify-content:space-between;align-items:center;
    padding-top:24px;color:#5d6478;font-size:13px;flex-wrap:wrap;gap:12px;
}
.td-footer-bottom a{color:#5d6478}
.td-footer-bottom a:hover{color:#7da6ff}

/* ============== 响应式 ============== */
@media (max-width:992px){
    .td-hero-inner{grid-template-columns:1fr;text-align:center}
    .td-hero-tag,.td-hero-cta,.td-hero-stats{justify-content:center}
    .td-hero-stats{justify-content:center;flex-wrap:wrap;gap:24px}
    .td-hero-title{font-size:42px}
    .td-grid-3{grid-template-columns:repeat(2,1fr)}
    .td-grid-4{grid-template-columns:repeat(2,1fr)}
    .td-footer-grid{grid-template-columns:1fr 1fr}
    .td-package-hot{transform:none}
    .td-package-hot:hover{transform:translateY(-4px)}
}
@media (max-width:640px){
    .td-nav{display:none}
    .td-hero{padding:110px 0 60px}
    .td-hero-title{font-size:32px}
    .td-section-head h2{font-size:28px}
    .td-grid-3,.td-grid-4{grid-template-columns:1fr}
    .td-footer-grid{grid-template-columns:1fr}
    .td-orb{width:280px;height:280px}
    .td-orb-ring-3{width:280px;height:280px}
    .td-orb-ring-2{width:220px;height:220px}
    .td-orb-ring-1{width:160px;height:160px}
    .td-orb-inner{width:100px;height:100px;font-size:42px}
    .td-cta-inner{padding:40px 24px}
    .td-cta-inner h2{font-size:24px}
}